Method to adjust sealing gap in regenerative heat exchanger depending on temperature, heat-controlled adjustment device for its realisation and regenerative heat exchanger

FIELD: heating.

SUBSTANCE: during adjustment of a sealing gap depending on temperature between a movable seal and a rotary rotor of a regenerative heat exchanger, at least one adjustment device is used, comprising several rod elements, due to interaction of which with each other sliding adjustment of the seal is developed, at the same time at least two of these rod elements are controlled separately via according chambers with the help of a control medium of alternating temperature, so that these rod elements are exposed to different temperatures. The invention also relates to a regenerative heat exchanger, where such an adjustment device may be used, and the method to adjust sealing gaps.

EFFECT: development of a simple automatic and cheap method to adjust the seal in the regenerative heat exchanger.

25 cl, 5 dwg

 

The invention relates to a method for adjustment depending on the temperature of the sealing gap between the movable seal and the rotating rotor of the regenerative heat exchanger, and an adjusting device for implementing this method and to the regenerative heat exchanger.

Regenerative heat exchangers of the aforementioned type are used for heating air and/or gas. For this gas, radiating heat, and the gas receiving warmth, moving in counter-current along the casing as heat accumulators. Body heat accumulators, such as packages of heating sheets, are placed in the stator or the rotor.

If the body of the storage tank is placed in the rotor (principle Lungstrum), through rotation are cold and warm gas flows, resulting in a constant heat transfer between the gas streams. When placing the storage tank in the stator (the principle of Rothemuhle) heat transfer occurs due to the fact that on both end sides of the stator installed the so-called rotating caps, through which the gas flows are rotating through the stator. Thus, in both cases through case teplocomunenergo alternately pass all existing gas streams.

To prevent leakage in the stator, and especially in the rotor are different TP is of the rotor. The rotor has radial seal, perimeter and an axial seal, or the seal casing. Due to changing thermal conditions during operation, these seals must be constantly adjusted to maintain a specified amount of the sealing gap. For installation and adjustment of the sealing gaps are known for the following features:

- move manually (manual adjustment),

- software power regulation using servocylinders, and

- automatic control by electric actuators.

In DE 2162248 AND described temperature-controlled device to install and regulation depending on the temperature of the sealing gap. Seals in this device the spring bolts connected to the bellows, which are under varying thermal effects. In the closed bellows enclosed volume of gas being heated or cooled from the outer side of the working gases, as a result, the gas pressure in the bellows changes, and it is used as a driving force for sealing. In addition, currently known core elements that are subjected to variable thermal effects, and change their length in the axial direction in dependence on the temperature is converted to the installation movement of the seal. These con who e.g. have many shortcomings.

Based on the foregoing, the object of the invention is to provide a simple, automatic and inexpensive way to control the compaction in the regenerative heat exchanger.

This problem is solved first object of the invention is a method of adjustment depending on the temperature of the sealing gap between the movable seal and the rotating rotor of the regenerative heat exchanger. According to the method, at least one adjusting device containing multiple rod elements subjected to variable thermal effects; changing the length of the truss element in the axial direction in dependence on the temperature is converted to the installation movement of the seal. When this core element, at least the parts is at least in one chamber and through this camera, or around it, at least partially transmit the control environment, which directly or indirectly affects the core element AC heat, and the temperature control of the environment corresponds to the temperature of the gas stream passing through the rotor, so that when the temperature of the gas stream varies the length of the truss element in the axial direction and is appropriate installation moving seals. At least one the adjusting device includes several rod elements, which by interaction with each other to create the installation movement of the seal, and at least two of these core elements is controlled separately through the respective chambers with the help of a control environment with variable temperature, so that these core elements are also exposed to different temperatures.

The truss element is a solid body, in which the elongation in the axial longitudinal direction is many times greater than its transverse dimensions. A truss element is subjected to a variable heat made from a material whose volume changes with changing temperature in accordance with the coefficient of thermal expansion, resulting, in particular, changes in the length in the axial direction.

A truss element, which is subjected to alternating thermal load placed in the chamber, at least parts. The corresponding core element, at least, the parts surrounded by at least one camera or passes at least through one such camera. The walls of such chambers are preferably sealed in a fluid environment. For the direct impact of variable temperatures on the core element in such a camera may be managing the environment, which in the proposed method, etc is dstanley the heat level of the gas stream, passing through the rotor. To improve heat transfer surface of the rod element can be given the appropriate form. On the surface of the rod element can also be coated to protect, for example, from exposure to aggressive management of the environment. When AC thermal influence on the anchor for indirectly controlling medium is passed around this camera, as described in more detail below. You can combine both options.

The rotating rotor is designed preferably to transfer heat from the first gas stream, such as flue gas stream, the second gas stream, for example the fresh gas flow or stream of mixed air, this technology is used, in particular, in power plants.

The management environment may be gaseous or liquid, however, it must be able to pass through the pipeline system and similar systems. In the proposed method provides that the temperature of the flow medium corresponds to the temperature of the gas stream passing through the rotor, i.e. there is a mutual correspondence between them. The leading value is either the first or the second gas volume flow. Preferably the leading is the second gas flow, i.e. the flow of air temperature after passing through the rotor or at the exit of the rotor (g is race the side of the rotor) is essential to adjust the sealing gap.

The basic principle of the invention is to define the correlation between the temperature of the gas stream passing through the rotor, and deformation of the rotor that occurs at a certain temperature. Such deformation of the rotor occurs, for example, in the form of convexity of the rotor is described, for example, in DE 2162248 A. This raises the need to install the sealing gap by re-adjustment. This applies to the radial seals and the seals around the perimeter on both sides of the rotor, and axial seals and sealing the casing. The invention allows a simple, but extremely effective regulation of the seals of the rotor, making it possible at any time almost automatically optimally to install the sealing gaps under different modes of operation.

In the proposed method, the temperature control of the environment corresponds to the temperature of the gas stream passing through the rotor. Technically, this can be implemented in different ways. So, for example, via a heat exchanger to provide thermal contact management environment with a gas stream. You can also make the exhaust stream from the gas stream, which is a management environment. You can also on the basis of the temperature measurement of the gas flow to purposefully set the parameters control the Reda. You can also combine these features with each other. Below is a more detailed description of some of these features as examples of the method.

The invention has many advantages, for example:

- rod element, experiencing alternating heat, and the surrounding camera (camera) can be placed almost anywhere,

- rod element (s)experiencing alternating thermal effect mainly affects only one specific management environment

the invention can be used to control the radial seals, the seals on the perimeter and axial seals,

- suitable sealing under all load changes automatically compensate for deformation of the rotor

- there is no need for any electrical, pneumatic, hydraulic and/or similar servos,

- no need for cabling,

- sealing gaps can be individually adjusted depending on the location and during operation,

- during operation, the sealing gaps remain unchanged, i.e. leakage is negligible,

- long service life, and

- a small cost for repairs.

In accordance with the preferred embodiment invented the I as the control environment, served at least one rod, a portion of the flow passing through the rotor. The anchor is placed, at least parts of at least one chamber through which and/or around which at least partially passes the bifurcated part of the flow, so depending on changes in temperature of this gas stream is changing the length of the truss element in the axial direction and is appropriate installation moving seals. Part of the flow is preferably selected on the hot side of the rotor from the second flow, i.e. from the air stream. After branching a part of the flow can also be divided into several parts.

In accordance with a preferred embodiment of the invention selected portion of the stream after passing through and/or around the camera comes in the same gas stream or other gas flow passing through the rotor. For example, part of the flow taken from the air stream, is returned to the air or discharged into the flue gas stream. Refund or input can be carried out before entering the respective gas flow in the rotor or after leaving it. The skillful return or enter, you can use the pressure difference between the main stream and the branch. In addition, this technique allows to obtain the good energy effect.

In accordance with a preferred embodiment of the invention additionally provides a measurement of the sealing gap with the at least one sensor, where the control device determines and regulates at least one significant parameter of the control environment or changes the part of the flow to provide the necessary change in the length of the truss element in the axial direction and perform the appropriate installation moving seals. The essential parameters of the control environment or part of the stream are, in particular, pressure, temperature and volume flow. These parameters can be influenced, for example, by heating and/or cooling, and with the help of a supercharger. The idea is that when exposed to the operating environment or on the part of the flow you can get a certain change in the length of the truss element and thereby a certain installation moving the seal.

In accordance with a particularly preferred embodiment of the invention, the cold control environment comes first at least one core element, then it is heated and fed to the other core elements. This makes it possible to obtain precise control of the sealing gap. Below is a more detailed explained what I referring to the drawings.

The second object of the invention is the adjustment device. Thermally-driven adjusting device is designed to adjust the sealing gap between the movable seal and the rotating rotor in the regenerative heat exchanger. The adjusting device comprises at least one rod element, which is subjected to variable thermal effects, and changing the length of which in the axial direction in dependence of the temperature is converted to the installation movement of the seal. At least one rod element subjected to alternating thermal load placed at least parts of at least one camera, and this camera directly or indirectly served the management environment, which (directly or indirectly) has variable heat impact on this core element.

On the adjusting device, respectively, subject to the above provisions concerning the proposed method, and Vice versa. As a management environment preferably uses a selected portion of the gas stream is heated when passing through the rotor. The proposed adjustment device particularly suitable for the implementation of the proposed method.

In accordance with a preferred embodiment of the of Britania through the chamber partially passes the control environment, or at least part of the control environment, this chamber contains at least one input and at least one output. This results in direct or indirect AC thermal effect on a truss element. This camera may be in the form of a passing camera. Below is a more detailed explanation with reference to the drawings.

In accordance with a preferred embodiment of the invention through the chamber partially passes the control environment, or at least part of the control environment, so Luggage is made with double walls (i.e. with a closed cavity) and/or casing pipe. This results in a direct or indirect impact on the core element.

In accordance with a preferred embodiment of the invention between the core element and the camera allows relative movement. The alternative is no relative movement between the core element and Luggage.

In accordance with a preferred embodiment of the invention the core element is made in the form of a pipe. The tube preferably has a round cross-section, but other cross-sectional shape. It is also possible solid execution.

In accordance with a preferred embodiment of the invention to the measure mounted on a truss element. Preferably the camera is attached to the core element and completely covers it in the radial direction. Chamber length in the axial direction corresponds to approximately 60-80% of the axial length of the truss element, so that it preferably on both axial ends protrudes outside of the camera. In the axial direction of the rod element can be installed and multiple cameras through which you can, for example, allow different control environment.

In accordance with a preferred embodiment of the invention the walls of the chamber include at least one bellows section, thanks to which there is compensation amount depending on the temperature. Below is a more detailed explanation with reference to the drawings.

In accordance with a preferred embodiment of the invention in one cell in parallel and/or sequentially installed several rod elements at least in parts. Perhaps a few of these cameras, which are installed one such group of rod elements. The number of core elements established jointly in one cell may be different. Alternative and/or additional several rod elements or at least parts thereof, installed in separate chambers. It includes everything einicheski possible combinations of the placement.

In accordance with a preferred embodiment of the invention, if there are several core elements, at least two rod-like element is made of the same material. Essentially all of the core elements made of the same material. Even in the case of rod elements, made of the same material, due to different axial lengths and/or different thermal loads rods lengthened or shortened is not the same. Alternative and/or addition of at least two rod-like element made of different materials.

In accordance with a preferred embodiment of the invention, at least one first camera has an input for unheated or cold control environment, for example air, and at least a second camera is input to the heated control environment so that the rod elements are installed in these cells are under the influence of a certain temperature difference from the control fluid (air). The idea is to create an independent system with adjustable temperature control medium or with adjustable volume flow, in order to purposefully influence the change of the length in the axial direction. Below is a more detailed explanation with reference to the drawings.

In accordance with predpochtite is determined as being the embodiment of the invention the flow connects the first and second chambers, and the first camera is positioned upstream from the second chamber in relation to the preferred direction of flow of the flow medium. The flow passes through the pipe system. The preferred diameter of the pipeline is approximately 20 mm, More detailed explanations are given below with reference to the drawings.

In accordance with a preferred embodiment of the invention, the system includes at least one heating and/or cooling. In particular, the heating device for the auxiliary heating control environment is installed between the exit of the first chamber and the entrance into the second chamber. This heating device is embedded preferably in the piping system. Preferably, this heating device is set to bypass. This is especially necessary if the management environment at least partially represents the portion of the warm or hot flow, selected from one of the passing through the rotor of the gas flow. Additional heating may not be necessary. However, you may need cooling. Below is a more detailed explanation with reference to the drawings.

In accordance with a preferred embodiment of the invention provides at least one blower. In particular, between the output from the first to the steps and entrance connected with her second camera installed supercharger to support supply management environment. This supercharger installed preferably in the piping system. Using the blower, if necessary, you can increase the pressure of the control environment. Below is a more detailed explanation with reference to the drawings.

In accordance with a preferred embodiment of the invention the adjusting device comprises at least one valve device. In particular, at least one valve device is intended to regulate the volumetric flow of the flow medium. The valve device is preferably installed in the piping system. Below is a more detailed explanation with reference to the drawings.

In accordance with a preferred embodiment of the invention the adjusting device comprises at least one filter. In particular, the filter is installed in the flow direction before the core elements, in order to eliminate any dirt deposits on the beam elements. This filter is preferably in the piping system.

In accordance with a preferred embodiment of the invention the adjusting device comprises at least one sensor for measuring the sealing gap.

In accordance with a preferred embodiment of the invention uses a control device. the particular the control device based on the signal of the measuring sensor includes a heating device and/or the cooling device, the blower and/or the valve device. The control device is preferably an electronic control unit, which, in particular, contains the control algorithm on the basis of a computer program.

Another object of the invention is the regenerative heat exchanger containing at least one thermally-driven adjusting device. In particular, the regenerative heat exchanger capable of operating or functioning of the proposed method. In respect of this heat exchanger are respectively the foregoing.

In accordance with a preferred embodiment of the invention the seal, which is controlled by the adjusting device is a radial seal, o-ring seal and/or seal the casing. In particular, the seal, which is controlled by the proposed adjustment device is a radial seal and/or o-ring seal on the cold and/or hot side of the rotor.

Below are detailed explanations of the invention with reference to the drawings, in which:

figure 1 - the rotor of the regenerative heat exchanger, side view;

F. the Data2 - an example of executing the adjusting device on the proposed method, the cross-section;

figure 3 is an alternative exemplary embodiment of an adjusting device according to the proposed method, the cross-section;

figure 4 is another exemplary embodiment of the adjusting device on the proposed method with approximate mounting scheme; and

5 is a chart of temperature change of the beam elements with shock temperature control environment.

Figure 1 shows a rotor, designated generally 1, the proposed regenerative heat exchanger. The rotor 1 has a vertical axis 2 of rotation, direction of rotation as the example shown by the arrow R Through the rotor 1 are in opposite directions, the first gas stream 3, such as hot flue gas stream and the second gas flow 4, for example cold air flow. With the help of the rotor 1, the heat from the first gas stream 3 is passed to the second gas flow 4, resulting in the first gas stream 3 when passing through the rotor 1 is cooled, and the second gas flow passing through the rotor 1 is heated. Based on the available temperature conditions of the upper end side of the rotor can be called "hot front side (or the side of the rotor), and the lower end side of the rotor - cold face side (or the side of the rotor) Century by the Letter U in the example indicated uplo the enforcement gap.

To prevent leaks on the rotor 1 has o-ring seals 7a and 7b, the radial seals 8A and 8b, as well as axial seal or seal casing 9a and 9b. These seals 7a, 7b, 8A, 8b, 9a and 9b can be installed in parts. Due to temperature changes during operation, it is necessary to constantly adjust these seals to keep certain sealing gaps. This adjustment seals 7a, 7b, 8A, 8b, 9a and 9b is performed using at least one offer of an adjusting device 10, a more detailed description will be given below. For seals 7a, 7b, 8A, 8b, 9a and 9b is possible to provide several such adjusting devices 10 that can operate independently from each other or in concert with each other.

Figure 2 diagrammatically in cross section shows a simple implementation of the proposed adjustment device 10. The adjusting device 10 is rigidly fixed to the plot of the casing or frame 5 of the regenerative heat exchanger. In the adjusting device 10 includes a plot control 11 and the portion of the regulation or the actuator 12. On site management are core elements 13 and 14, the axial length of which varies depending on the current temperature. Core elements 13 have the same axial length shorter than the rod El kelaa the 14 patients.

External beam elements 13, the external location is shown only for example, the left axial ends of the fixed support 15. By changing the length in the axial direction under the influence of temperature core elements 13 transmit this change in length located on the right side of the floating bearing 16. Movement V, transferred to the floating bearing 16 through the rod elements 14, is transmitted to the rocker arm 20, through which the adjusting screw 21 transmits motion to a corresponding seal, as shown by the double arrow X. the Nuts 22 are used for manual adjustment of the seal. A lever mechanism shown in the figure only as an example. So you can easily implement and other mechanical actuators. Shows the diagonal arrangement of the core elements 13 and 14 are shown only as an example.

Core elements 13 is made of a material whose volume when the temperature is increasing considerably. The core element 14 is made of a material whose volume at the same temperature change varies considerably smaller, resulting in a change in the length of the beam elements 13 do not offset the change in the length of the core element 14. The control mechanism can be described as follows: Core elements 13 with a large coefficient of linear model is initiate the installation movement, which at least one rod element 14 with a low coefficient of linear expansion is transmitted to the actuator 12. The number of individual types of core elements are given only as an example, while it is preferable to provide multiple rod elements 13, to obtain a high installation force. On the core elements 13 applies pressure, so they can be called "rods compression". Core element(s) 14 experiences a tensile stress, so it can be called a "rod stretching".

Core elements 13 and 14 are located in the same chamber 17 formed by the tight walls 17A. In the above example, the execution core elements 13 and 14 are placed in the chamber 17. In the chamber 17 in the example shown, the inlet 18 and outlet 19. Through the inlet 18 and outlet 19 to the chamber 17 may be managing the environment in the direction of the arrows. When this control environment is in direct contact with the core elements 13 and 14, which consequently acquire the temperature of the flow medium. The temperature change of the control environment causes a change in the length in the axial direction of the rod elements 13, which is due to the installation movement X for sealing, as described above.

As a management environment preferred ha is Obratnaya environment. In particular, in the management of the environment is part of the flow, which is taken from the second heated gas stream or air flow 4 after its passage through the rotor 1, i.e. on the hot side And the rotor 1. Due to the correlation between the temperature of this gas stream 4 on the hot side And the rotor 1 and the resulting deformation of the rotor of the adjusting device 10 can be mechanically adjusted so that a suitable seal at a certain temperature to be shifted by a certain distance, what will happen then almost automatically. Specific area travel X can be set, for example, based on the gear ratio in the mechanical drive 12, or by selection of the material of the beam elements 13 and 14, or their geometric dimensions.

Changing volume and/or pressure of the flow of the flow medium in the chamber 17, it is possible if necessary to change the reaction time, which is required in order beam elements 13 and 14 have purchased the current temperature of the control environment. To manage the change in volume and/or pressure flow control environment, used the device of heating and/or cooling, as well as the supercharger. In addition, you may have a targeted effect on the properties of the control environment to get the right set the adjustment movement X to seal. Below on the basis of figure 3 shows an example of a suitable implementation.

Figure 3 shows an alternative exemplary embodiment of the adjusting device 10. Its design is essentially identical to the construction shown in figure 2. However, in this case, the management environment washes core elements 13 and 14 are not directly, resulting in a direct AC or heat exposure does not occur, and the control medium passes through the cavity 17b in the walls 17A and, therefore, does not come into direct contact with the core elements 13 and 14, that is why wall 17A is made hollow. In this case, AC heat effect on the core elements 13 and 14 only indirectly, as the management environment transmits its heat to the air enclosed in the chamber 17. (this may be gas or liquid). This embodiment has many advantages, such as tightness. In addition, you can apply and aggressive control environment, in this case they will not be able to affect the seals and/or beam elements 13 and 14. Instead cavity 17b, or in addition thereto, the wall 17A of the chamber 17 at least in certain areas may be closed casing tubing, such as coiled tubing, which passes through the management environment.

In accordance with the scheme shown in figure 4, an alternative is Egorovna device 10 core element 14 operates in tension, and several rod elements 13 in the compression. They are enclosed in the sealed chamber 171 and 172, which are made in the form of a hollow cylindrical housings with round end parties. Chambers 171 and 172 are diadromous, the working medium passes right through them. Chambers 171 and 172 as if impaled on a rod elements 13 and 14. Chambers 171 and 172 are part of the system streams or pipelines, in which there is an entrance 181, a few connecting lines 40, exit 192, several valves or valve devices 51-54, the filter 60, adjustable blower 60, and adjustable electric heating device 70. Both flow chambers 171 and 172 are connected in series. The connecting line 40 pipe systems have, for example, the internal diameter of approximately 20 mm

The compression rods 13 and the stretching rod 14 are parallel to each other and moves the seal depending on the temperature, as described above, in the example shown here the o-ring seal 7. Sealing the gap for the rotor 1 is marked with the letter U. the compression Rods 13 and their upper axial ends rigidly mounted in the fixed bearing 15, and the lower axial ends remain movable floating bearing 16. This movement of the floating bearing 16 through the stretching rod 14 and through not shown n the figure of the lever system is passed as the installation movement of the seal 7, the gap is marked with the letter U. the compression Rods 13 and the stretching rod 14 are in this case different coefficients of thermal expansion. Alternative and/or additional rods may be, for example, different cross-section. In the present example the core elements 13 and 14 have different axial length.

In a preferred structural implementation of the core elements 13 and/or 14 have a diameter of about 10-20 mm and axial length of approximately 2 m Chambers 171 and 172 are predominantly cylindrical shape and an inner diameter of, for example, approximately 100 mm

Chambers 171 and 172 are largely invariant volume. Through these chambers 171 and 172 (through camera) is a management environment that has a direct thermal effect on the compression rods 13 and the stretching rod 14. The end faces of the chambers 171 and 172 are rigidly connected by rods 13 and compression by stretching rod 14. To compensate for changes in length under the influence of temperature in the walls of the chambers 171 and 172 mounted bellows 173 and 174.

In the shown example, the execution of heated air having a temperature of, for example, 20C, through the inlet 181 at one end is sucked into the chamber 171, covering the compression rods 13. This air is subsequently used as a management environment. The management environment washes the compression rods 13 almost the entire length, and then the output is t through the exit 191 on the other end. From there it via a connecting line 40 enters the electric heating device 70, where it is heated and fed to the input 182 of the camera 172, which is the stretching rod 14. Heating device 70, if necessary, can act as a cooling device or as combined heating/cooling. The performance of the heating devices 70 is regulated by the control device 80, which is connected, for example, with a sensor 90 for measuring the sealing gap U. In the connection line 40 is also the supercharger 60, which creates or at least supports the traffic flow in the piping system. The blower 60 may also be regulated by the control device 80. In addition, upstream, before the heating device 70 is the filter 50, which cleanses, in particular, the control environment or the air from solids.

Heated in the heating device 70 and/or passed through the blower 60 air after passing through almost the entire length of the stretching rod 14 extends through the exit 192 and preferably is served in the object to be heated gas stream 4 (figure not shown).

Describes the location allows you to apply for beam elements 13 and 14 environment with varying temperature. This ensures good adjustability. In addition, you can perform indirect reg the regulation of the sealing gap, depending on the temperature of the gas flow or the selected part of the stream. Thanks this has the advantage that you can create uniquely specified flow through the chambers 171 and 172 along the rod elements 13 and 14, thereby guaranteed a certain heat transfer to the core elements 13 and 14. In this simple way, you can determine the dependence of the change of the length in the axial direction from the temperature or volume air flow (or management environment) and thereby regulate the sealing gap U seal 7. Because the invention can be implemented as an independent system, it can be used for many occasions. Because the system uses a relatively simple parts, it is reliable and not costly to manufacture.

Alternatively, or to support the heating devices 70 and/or blower 60 heated air can be extracted from the hot side of the rotor 1 and submit it through another entrance 41 to the junction point 42 in the connecting line 40. Flow is regulated by valves 51 and 52, which receives commands from the control device 80. The closing of the valve 51 prevents unwanted return of heated air to the compression rods 13.

In parallel to the heating device 70 passes the bypass 44 to the valve 53, allowing the air to you direct, bypassing the heating devices 70. The volume of air flow through the device load, the VA 70 can be partially or fully controlled by valve 54, below in the course of the stream. The valves 53 and 54 also allow you to regulate the amount of flow, and with the regulation of the composition of the mixed stream to set the temperature of the air inlet 182. The valves 53 and 54 is regulated by the control device 80. You can also set the bypass and the blower 60 and/or the filter 50.

Figure 5 shows a graph of the temperature of the core elements of S with shock temperature L management environment. It is seen that the temperature of the rod elements S slowly increases to a temperature of L of the flow medium passing through the chamber 17 (or 171 and/or 172), and the change of the length in the axial direction occurs synchronously with the curve S. This chart should serve as the basis for calculating the adjustment device 10. In the course of the curve can be affected, for example, using the supercharger 60 or heating device 70, respectively, to be controlled by the control device 80.

1. The adjustment method, depending on the temperature of the sealing gap between the movable seal and the rotating rotor of the regenerative heat exchanger, which consists in the fact that they use at least one adjusting device containing at least one rod element, which is subjected to variable thermal effects, the change in the length erased newago element in the axial direction in dependence on the temperature is converted into the installation movement of the seal and a truss element, at least the parts is at least in one chamber and through the chamber or around it, at least partially transmit the control environment, which directly or indirectly affects the core element AC heat, and the temperature control of the environment corresponds to the temperature of the gas stream passing through the rotor, so that when the temperature of the gas stream varies the length of the truss element in the axial direction and is appropriate installation moving seal, characterized in that several core elements, at least one adjusting device, due to the interaction with each other to create the installation movement of the seal, while at least two of these core elements is controlled separately through the respective chambers with the help of a control environment with variable temperature, so that the trusses are exposed to different temperatures.

2. The method according to claim 1, wherein the managing the environment of the use of part of the flow, which are selected from passing through the rotor of a gas stream and which serves at least one specified core element, and beam elements, at the ore, parts are placed at least in one chamber, through which or around which transmit the selected portion of the stream, so depending on changes in temperature of this gas stream is changed, the length of the truss element in the axial direction and is appropriate installation moving the seal.

3. The method according to claim 2, characterized in that the part of the flow after passing through the chamber or around the camera returns to the same gas flow or served in another gas stream that has passed through the rotor.

4. The method according to claim 1, characterized in that it further measure of sealing the gap with the at least one sensor and on the basis of the sensor data using device management change at least one significant parameter of the control environment or part of the stream in order to provide the desired change in the length of the truss element in the axial direction and corresponding installation moving the seal.

5. Thermoplasma adjusting device for adjusting the sealing gap between the movable seal and the rotating rotor of the regenerative heat exchanger containing a plot of control, at least one rod element mounted with the opportunity to experience alternating heat and mechanical drive, the implementation of the tion with the possibility of conversion changes the length of the truss element in the axial direction, caused by the temperature change, the installation movement of the seal, and at least one experiencing alternating heat rod element placed at least parts of at least one camera, which is made with the possibility of transmission of the control environment, while managing the environment directly or indirectly has a variable thermal effect on a truss element, characterized in that it contains several interacting rod elements that are installed, at least the parts in separate chambers, so that provides exposure to different temperatures on these core elements.

6. The adjusting device according to claim 5, wherein the camera is arranged to pass at least partially control environment, with cameras contain at least one input and at least one output.

7. The adjusting device according to claim 5, characterized in that the walls of the chambers are hollow and/or closed casing pipe, with the camera at least partially washed management environment.

8. The adjusting device according to claim 5, characterized in that allows relative movement between the rod elements and cameras.

9. The adjusting device according to claim 5, Otley is aldeasa fact, that the rod elements are made in the form of a pipe.

10. The adjusting device according to claim 5, characterized in that the camera mounted on the rod elements.

11. The adjusting device according to claim 5, characterized in that the walls of the chambers contain at least one bellows section to compensate for volume changes caused by temperature changes.

12. The adjusting device according to claim 5, characterized in that at least the first chamber contains the input (181) for unheated control environment, and at least the second chamber contains the entrance to the heated control environment, resulting located in these cells trusses are exposed to a certain temperature difference, resulting from the filing of the control environment.

13. The adjusting device according to item 12, wherein the first camera and the second camera are connected by streams, with the first camera is positioned upstream from the second camera relative to the preferred direction of flow of the flow medium.

14. The adjusting device according to item 13, characterized in that between the output of the first camera and the subsequent input of the second camera is a device for heating auxiliary heating control environment.

15. The adjusting device according to item 13, characterized in that between the output of the first camera and I the house subsequent second camera is a supercharger for the auxiliary supply of the control environment.

16. The adjusting device according to item 13, characterized in that it contains at least one valve device for flow control of the control environment.

17. The adjusting device according to claim 5, characterized in that it contains at least one sensor for measuring the sealing gap.

18. The adjusting device according to 17, characterized in that it contains a control device configured to activate the heating devices, the compressor and/or the valve device based on the received sensor signal.

19. The adjusting device according to claim 5, characterized in that at least two rod-like element is made of the same material.

20. The adjusting device according to claim 5, characterized in that at least two rod-like element made from different materials.

21. The adjusting device according to claim 5, characterized in that it contains at least one filter.

22. The regenerative heat exchanger containing at least one thermoplasma adjusting device according to claim 5.

23. Regenerative heat exchanger according to item 22, wherein the adjustable using the control device seal is a radial seal, o-ring seal and/or seal casing.

24. Regenerative heat exchanger according to article 22, otlichuy is the, what is adjustable using the control device seal is a radial seal and/or o-ring seal on the cold side of the rotor and/or on the hot side of the rotor.

25. Regenerative heat exchanger according to article 22, characterized in that it is made with the method of adjustment depending on the temperature of the sealing gap between the movable seal and the rotating rotor of the regenerative heat exchanger and method of adjustment is used, at least one adjusting device containing at least one rod element, which is subjected to variable thermal effects, the change in the length of the truss element in the axial direction in dependence on the temperature is converted into the installation movement of the seal and the rod element, at least the parts is at least in one camera through the camera or around it, at least partially transmit the control environment, which directly or indirectly affects the core element AC heat, and the temperature control of the environment corresponds to the temperature of the gas stream passing through the rotor, so that when the temperature of the gas stream to alter the length of the wall is newago element in the axial direction, and run the appropriate installation moving seals, and a few core elements, at least one adjusting device, due to the interaction with each other to create the installation movement of the seal, while at least two of these core elements is controlled separately through the respective chambers with the help of a control environment with variable temperature, so that the trusses are exposed to different temperatures.



 

Same patents:

FIELD: heating.

SUBSTANCE: invention relates to the field of heat engineering, namely, to devices for heat recovery. Device for heat recovery contains a heat exchanger (3) located in the annular space (4) representing a part of the exhaust pipe (2) branching, for example, from a gas turbine or a diesel engine. Bypass pipe (6) for exhaust passes through the annular space (4), and distribution of the exhaust flow through the heat exchanger (3) and the bypass pipe (6) is regulated by the control valve (7). The control valve (7) is a butterfly valve (7) which is located in the exhaust pipe (2), adjacent to the heat exchanger (3), at that the said butterfly valve (7) has a fixed part (8) and the rotary part (9) equipped with openings (10, 12, 11, 13) closed or combined with each other. And both the fixed part (8) and the rotary part (9) have two oppositely directed conical parts (8a, 8b; 9a, 9b).

EFFECT: creation of a simple and inexpensive in manufacture device for heat recovery, weight reduction and simplification of regulation.

9 cl, 5 dwg

Heat exchanger // 2363904

FIELD: heat engineering.

SUBSTANCE: invention relates to heat engineering, particularly to heat exchangers and can be used in heat exchanging or heat-transmitting devices. Heat exchanger with case, which allows primary inlet connection, primary exhaust connection, repeated inlet connection and repeated exhaust connection, between primary inlet connection and primary exhaust connection it is located primary flow path of primary side, and between repeated inlet connection and repeated exhaust connection it is located repeated flow path of repeated side, herewith primary flow path is in condition of heat exchange with repeated flow path.

EFFECT: improvement of heat exchanger parametres, achieved ensured by auxiliary control unit passes through the intermediate space, located between primary flow path and in repeated flow path.

16 cl, 4 dwg

FIELD: heating systems.

SUBSTANCE: automatic gas heater control device relates to control and monitoring systems. It contains the following parts connected to each other: controller, relay switching panel with electromagnetic relays, voltage converter, terminal plate, and LED indicators with built-in resistors. Controller is connected to LED indicators through the terminal plate. Controller, relay switching panel, and voltage converter are connected to terminals for output.

EFFECT: simplifying the design at maintaining the required functional capabilities.

4 cl, 3 dwg, 1 tbl

Heat-exchanger // 2345303

FIELD: heating.

SUBSTANCE: invention relates to heat exchange units and may be used in heat-exchangers with primary and secondary circuits containing valve for coolant flow control. For this purpose, the heat exchanger consisting of housing with primary circuit between inlet connection and return pipe connection, and the secondary circuit between feed line connection and drain connection, includes valve for coolant flow control through the primary circuit and actuator with the expanding element being affected by the secondary circuit temperature. The valve and expanding element are located from the opposite sides of heat transfer surface, wherethrough the heat from the primary side is transferred to the secondary side. So, the heat-exchanger is represented with plate heat-exchanger. If temperature in the secondary circuit is changed, the expanding element is extended or compressed. The expanding element is connected with the valve which controls coolant flow rate in the primary circuit.

EFFECT: development of compact heat exchanger.

9 cl, 2 dwg

Heat exchanger // 2334929

FIELD: heating.

SUBSTANCE: invention is referred to thermal engineering and may be used in district heating systems for heating service water. Heat exchanger contains primary circuit channel located between inlet and outlet connections, secondary circuit channel located between supply pipeline assembly and return pipeline assembly, heat-conducting device between primary circuit channel and secondary circuit channel, and temperature sensor. Temperature sensor is located between secondary circuit channels close to connection with return pipeline. Besides, temperature sensor contacts with heat-conducting device or situates at small distance from it.

EFFECT: space saving in heat exchanger when temperature is measured and good results are achieved.

7 cl, 5 dwg

FIELD: mechanical engineering; heat exchanger equipment.

SUBSTANCE: invention relates to multistage heat exchange device containing primary and secondary circuits to provide heat exchange in which heat carrier passes in opposite directions. According to invention, primary circuit has at least two points of supply of heat carrier displaced relative to each other in direction of flow. Said device contains also system of valves interacting with temperature sensors and regulating heat carrier flow through primary circuit. Valve gear for each heat carrier supply point has separate valve.

EFFECT: provision of stable control of temperature at output of secondary circuit.

5 cl, 3 dwg

FIELD: systems for automatic control of technological processes for cooling natural gas with use of apparatus for air cooling, possibly in after-compressing stations of gas fields in northernmost regions for sustaining optimal operation modes of air cooling apparatus for natural gas.

SUBSTANCE: system includes frequency-controlled drive unit; unit for processing measurement information and for automatic control; temperature pickups; electronic unit of temperature pickups; computing unit; two actuating devices; blowers. Signals of temperature pickups are fed through electronic unit to unit for processing measurement information and for automatic control. Said unit for processing measurement information judges (on base of inlet signals) what blowers are to be used and sends respective electric signal to computing unit. With the aid of computing unit one actuating device turns on electric motors of blowers due to their alternative connection with frequency-controlled drive and connects with AC-source electric motors of blowers. Other actuating device controls temperature of walls of heat exchange tubes in all sections of air cooling apparatus of gas and connects with frequency-controlled drive electric motor of blower of that section where temperature of walls of heat exchange tubes differs from preset value. After achieving preset temperature value of walls of heat exchange tubes of selected section, apparatus turns off electric motor of blower from frequency-controlled drive and switches it to AC source. Similar operations may be realized for electric motors of blowers if necessary.

EFFECT: simplified system for automatic control of apparatus for air cooling of natural gas.

1 dwg

FIELD: heating systems.

SUBSTANCE: method comprises control of temperature of at least one of secondary flows of fluid in the secondary circuit which outflows from heat exchanger (1) by means of the primary flow in the primary circuit with the use of control members (5) and (11) that control the primary flow under the action of control unit (7), determining the difference of enthalpies of the primary flow that enters heat exchanger (1) and primary flow that leaves heat exchanger (1), measuring the secondary flow, measuring the flow in the primary circuit, and sending the parameters determined to control unit (7) for control of control members (5) and (11). As a result, the primary flow is controlled by the secondary flow so that the power supplied to the heat exchanger with the primary flow is, in fact, equal to the sum of the power required for the heating of the secondary fluid from the initial current temperature up to the specified outlet temperature, power required for the compensation of energy stored in heat exchanger (1), and power losses from heat exchanger (1). The description of the device for control of water temperature is also presented.

EFFECT: enhanced reliability.

13 cl, 9 dwg

FIELD: heating engineering.

SUBSTANCE: space where surface of condensation locates is brought into communication with steam source and with atmosphere. Heat from surface of condensation is removed to group of individual heat consumers in such a way that heat comes to one group of consumers after another group is supplied with it due to the fact that space where surface of condensation locates is separated to a number of cavities relating in series to each other. The cavities form channel, which communicates steam source with atmosphere. Heat from parts of surface of condensation disposed at different cavities is removed separately each from another to different consumers. Device for realization of the method has vapor source connected with inner cavity of heat-exchange apparatus. The inner cavity communicates with atmosphere. Inner surface of heat-exchange apparatus communicates with atmosphere through internal cavity of at least one more heat-exchange apparatus. Heat-exchange apparatuses are connected with heat agent carriers of different consumers of heat. Internal surfaces of heat-exchanges apparatuses form at least one channel elongated in vertical direction.

EFFECT: selective heat supply from surface of condensation.

4 cl, 3 dwg

The invention relates to the field of water supply and heat and can be used in systems backbone networks water and heating

FIELD: heating engineering.

SUBSTANCE: space where surface of condensation locates is brought into communication with steam source and with atmosphere. Heat from surface of condensation is removed to group of individual heat consumers in such a way that heat comes to one group of consumers after another group is supplied with it due to the fact that space where surface of condensation locates is separated to a number of cavities relating in series to each other. The cavities form channel, which communicates steam source with atmosphere. Heat from parts of surface of condensation disposed at different cavities is removed separately each from another to different consumers. Device for realization of the method has vapor source connected with inner cavity of heat-exchange apparatus. The inner cavity communicates with atmosphere. Inner surface of heat-exchange apparatus communicates with atmosphere through internal cavity of at least one more heat-exchange apparatus. Heat-exchange apparatuses are connected with heat agent carriers of different consumers of heat. Internal surfaces of heat-exchanges apparatuses form at least one channel elongated in vertical direction.

EFFECT: selective heat supply from surface of condensation.

4 cl, 3 dwg

FIELD: heating systems.

SUBSTANCE: method comprises control of temperature of at least one of secondary flows of fluid in the secondary circuit which outflows from heat exchanger (1) by means of the primary flow in the primary circuit with the use of control members (5) and (11) that control the primary flow under the action of control unit (7), determining the difference of enthalpies of the primary flow that enters heat exchanger (1) and primary flow that leaves heat exchanger (1), measuring the secondary flow, measuring the flow in the primary circuit, and sending the parameters determined to control unit (7) for control of control members (5) and (11). As a result, the primary flow is controlled by the secondary flow so that the power supplied to the heat exchanger with the primary flow is, in fact, equal to the sum of the power required for the heating of the secondary fluid from the initial current temperature up to the specified outlet temperature, power required for the compensation of energy stored in heat exchanger (1), and power losses from heat exchanger (1). The description of the device for control of water temperature is also presented.

EFFECT: enhanced reliability.

13 cl, 9 dwg

FIELD: systems for automatic control of technological processes for cooling natural gas with use of apparatus for air cooling, possibly in after-compressing stations of gas fields in northernmost regions for sustaining optimal operation modes of air cooling apparatus for natural gas.

SUBSTANCE: system includes frequency-controlled drive unit; unit for processing measurement information and for automatic control; temperature pickups; electronic unit of temperature pickups; computing unit; two actuating devices; blowers. Signals of temperature pickups are fed through electronic unit to unit for processing measurement information and for automatic control. Said unit for processing measurement information judges (on base of inlet signals) what blowers are to be used and sends respective electric signal to computing unit. With the aid of computing unit one actuating device turns on electric motors of blowers due to their alternative connection with frequency-controlled drive and connects with AC-source electric motors of blowers. Other actuating device controls temperature of walls of heat exchange tubes in all sections of air cooling apparatus of gas and connects with frequency-controlled drive electric motor of blower of that section where temperature of walls of heat exchange tubes differs from preset value. After achieving preset temperature value of walls of heat exchange tubes of selected section, apparatus turns off electric motor of blower from frequency-controlled drive and switches it to AC source. Similar operations may be realized for electric motors of blowers if necessary.

EFFECT: simplified system for automatic control of apparatus for air cooling of natural gas.

1 dwg

FIELD: mechanical engineering; heat exchanger equipment.

SUBSTANCE: invention relates to multistage heat exchange device containing primary and secondary circuits to provide heat exchange in which heat carrier passes in opposite directions. According to invention, primary circuit has at least two points of supply of heat carrier displaced relative to each other in direction of flow. Said device contains also system of valves interacting with temperature sensors and regulating heat carrier flow through primary circuit. Valve gear for each heat carrier supply point has separate valve.

EFFECT: provision of stable control of temperature at output of secondary circuit.

5 cl, 3 dwg

Heat exchanger // 2334929

FIELD: heating.

SUBSTANCE: invention is referred to thermal engineering and may be used in district heating systems for heating service water. Heat exchanger contains primary circuit channel located between inlet and outlet connections, secondary circuit channel located between supply pipeline assembly and return pipeline assembly, heat-conducting device between primary circuit channel and secondary circuit channel, and temperature sensor. Temperature sensor is located between secondary circuit channels close to connection with return pipeline. Besides, temperature sensor contacts with heat-conducting device or situates at small distance from it.

EFFECT: space saving in heat exchanger when temperature is measured and good results are achieved.

7 cl, 5 dwg

Heat-exchanger // 2345303

FIELD: heating.

SUBSTANCE: invention relates to heat exchange units and may be used in heat-exchangers with primary and secondary circuits containing valve for coolant flow control. For this purpose, the heat exchanger consisting of housing with primary circuit between inlet connection and return pipe connection, and the secondary circuit between feed line connection and drain connection, includes valve for coolant flow control through the primary circuit and actuator with the expanding element being affected by the secondary circuit temperature. The valve and expanding element are located from the opposite sides of heat transfer surface, wherethrough the heat from the primary side is transferred to the secondary side. So, the heat-exchanger is represented with plate heat-exchanger. If temperature in the secondary circuit is changed, the expanding element is extended or compressed. The expanding element is connected with the valve which controls coolant flow rate in the primary circuit.

EFFECT: development of compact heat exchanger.

9 cl, 2 dwg

FIELD: heating systems.

SUBSTANCE: automatic gas heater control device relates to control and monitoring systems. It contains the following parts connected to each other: controller, relay switching panel with electromagnetic relays, voltage converter, terminal plate, and LED indicators with built-in resistors. Controller is connected to LED indicators through the terminal plate. Controller, relay switching panel, and voltage converter are connected to terminals for output.

EFFECT: simplifying the design at maintaining the required functional capabilities.

4 cl, 3 dwg, 1 tbl

Heat exchanger // 2363904

FIELD: heat engineering.

SUBSTANCE: invention relates to heat engineering, particularly to heat exchangers and can be used in heat exchanging or heat-transmitting devices. Heat exchanger with case, which allows primary inlet connection, primary exhaust connection, repeated inlet connection and repeated exhaust connection, between primary inlet connection and primary exhaust connection it is located primary flow path of primary side, and between repeated inlet connection and repeated exhaust connection it is located repeated flow path of repeated side, herewith primary flow path is in condition of heat exchange with repeated flow path.

EFFECT: improvement of heat exchanger parametres, achieved ensured by auxiliary control unit passes through the intermediate space, located between primary flow path and in repeated flow path.

16 cl, 4 dwg

FIELD: heating.

SUBSTANCE: invention relates to the field of heat engineering, namely, to devices for heat recovery. Device for heat recovery contains a heat exchanger (3) located in the annular space (4) representing a part of the exhaust pipe (2) branching, for example, from a gas turbine or a diesel engine. Bypass pipe (6) for exhaust passes through the annular space (4), and distribution of the exhaust flow through the heat exchanger (3) and the bypass pipe (6) is regulated by the control valve (7). The control valve (7) is a butterfly valve (7) which is located in the exhaust pipe (2), adjacent to the heat exchanger (3), at that the said butterfly valve (7) has a fixed part (8) and the rotary part (9) equipped with openings (10, 12, 11, 13) closed or combined with each other. And both the fixed part (8) and the rotary part (9) have two oppositely directed conical parts (8a, 8b; 9a, 9b).

EFFECT: creation of a simple and inexpensive in manufacture device for heat recovery, weight reduction and simplification of regulation.

9 cl, 5 dwg

FIELD: heating.

SUBSTANCE: during adjustment of a sealing gap depending on temperature between a movable seal and a rotary rotor of a regenerative heat exchanger, at least one adjustment device is used, comprising several rod elements, due to interaction of which with each other sliding adjustment of the seal is developed, at the same time at least two of these rod elements are controlled separately via according chambers with the help of a control medium of alternating temperature, so that these rod elements are exposed to different temperatures. The invention also relates to a regenerative heat exchanger, where such an adjustment device may be used, and the method to adjust sealing gaps.

EFFECT: development of a simple automatic and cheap method to adjust the seal in the regenerative heat exchanger.

25 cl, 5 dwg

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