Heat exchange plate and plate heat exchanger

FIELD: heating.

SUBSTANCE: heat exchanger plates are arranged one after another in a plate heat exchanger, forming several gaps between plates for the first medium and several gaps between plates for the second medium. A heat exchanger plate comprises a heat transfer zone (10), an edge zone (11), which continues around and outside the heat transfer zone (10), and a device (25), designed to receive or transfer a signal. The heat exchanger plate also comprises a communication module (20), comprising an electronic circuit (21), connected to the specified device and a communication facility, making it possible to exchange the specified signal with a control device (30) by means of at least of the communication module (20) of another heat exchanger plate, contained in the packet of plates.

EFFECT: simplified assembly, increased reliability of heat exchanger operation.

16 cl, 6 dwg

 

The technical FIELD

The present invention relates to a plate heat exchanger in accordance with the restrictive part of paragraph 1 of the claims. The invention also relates to a plate heat exchanger according to the restrictive part of paragraph 10 of the claims. Such a plate heat exchanger and plate heat exchanger disclosed in WO 2005/119197.

BACKGROUND of INVENTION AND PRIOR art

There is the possibility of a desire to establish various types of devices, such as sensors, probes, electronic devices and so on, on a large number of heat transfer plates of a plate heat exchanger. Examples of such devices can be devices for measuring temperature, pressure, to send any pulses or signals, as well as for a wide range of other applications.

In WO 2005/119197 disclosed heat exchanger with lots of heat exchanger plates. Device type sensors provided on the respective plates near the strip for sealing gaps between the plates. Provided with sensors that allow you to observe the compression of the gasket material.

The INVENTION

The problem with such or similar plate heat exchangers is that the plate heat exchanger often contains very sore the first number of heat exchanger plates, in some cases, up to 700 pieces and even more. If several or more plates equipped with such a device, the connection between them may present difficulties. It is difficult to find the right position and sufficient gaps for basic installation connecting cables for all signals.

In addition, installation can take a very long time. In many cases, the use of plate heat exchangers with such devices and connections may be exposed to aggressive cleaning, possibly under high pressure, which can lead to failure of the device. A large number of connections creates high demands on electronic connections without interference.

One of the objectives of the present invention is to solve the problems described above, and in creating a reliable exchanger having a large number of plates with such a device installed on a large number of heat exchanger plates or on all plates.

This task is solved through a plate heat exchanger, as defined previously, which differs in that the plate heat exchanger includes a communication module that contains an electronic circuit connected to the said device, the communication module also contains the means of communication, enabling the exchange of the said signal control device via, on ENISA least one communication module of another plate heat exchanger plate pack.

Using a plate heat exchanger it is possible to obtain a heat exchanger with a reliable connection with the said device in the case of the presence of a large number of heat exchanger plates. The heat exchanger can be manufactured in an easy way so as to communicate with each of the devices is not required connecting cables. Provides greater freedom in the positioning of the communication module, as there is no need to ensure the availability of connecting cables. The communication module may be located at the place where adequate protection be provided for the module, and which is not exposed to aggressive cleaning.

According to one embodiments of the invention, the communication module is formed by a communication bus, operating according to a suitable communication Protocol, such as a serial bus Protocol.

According to an additional variant of implementation, the means of communication includes at least one main contact element located on the main side of the plate heat exchanger, and at least one auxiliary contact element located on the opposite auxiliary side plate of the heat exchanger. Such contact elements enable communication between the above device is the your and the control device, passing from one module to the adjacent, and so on.

According to another variant of implementation, the device includes a sensor for measuring at least one parameter and for issuing a signal in dependence on this parameter. Such a sensor may include at least one of the following types of sensors: pressure sensor, temperature sensor, sensor for measuring humidity and so on

According to another variant implementation of the latter device comprises a generator voltage, designed to produce a voltage which can be served on the plate heat exchanger. Such a generator voltage may be provided for applying voltage to the plate heat exchanger in order to avoid contamination of the plate heat exchanger, to reduce or even completely eliminate.

According to one more embodiments, the communication module provided in the edge zone. In the marginal zone of the communication module are adequately protected from the environment, the current between the plates of a plate heat exchanger. The communication module in this position can also be easily accessed from the outside.

According to another variant implementation plate heat exchanger contains a socket strip, which continues around the area of heat transfer between the heat transfer area and crevaison, and intended for accommodation of the strip, as well as additional socket strip that goes on the margins and in which is installed an additional strip, and between the socket strip and additional socket strip has a gap, which is equipped with a communication module. With such arrangement of the strip, the communication module is well protected from external influences such as the effect of liquids for cleaning. According to an additional variant implementation plate heat exchanger contains a few holes that pass through the plate heat exchanger and located within the marginal zone, preferably inside the socket strip, and near the marginal zone.

According to another variant implementation plate heat exchanger contains a slot in the edge zone, and a communication module installed in the slot. Such a slot, in the form of holes or grooves, provides the position of the communication module, giving the advantage, in particular, to ensure the main contact element on the main side of the plate heat exchanger and the auxiliary contact element on the opposite auxiliary side plate of the heat exchanger. The slot can go up to the edge or inside edge of the plate heat exchanger.

The objective of the invention is also solved by using a previously defined place uncatego heat exchanger, includes a set of plates of the heat exchanger defined above and adjacent to each other, forming a number of first gaps between the plates for the first environment and a few second intervals for the second environment.

According to another variant embodiment of the invention, the communication modules and the control device is formed by a communication bus, operating according to a suitable communication Protocol.

According to another variant implementation of the communication bus is a serial bus. This serial bus is suitable for communication between the device and the control device by means of consecutive communication modules connected to each other via the main contact on one side of the plate heat exchanger and an auxiliary contact on the other side of the plate heat exchanger.

According to another variant of implementation, the communication modules are train.

According to another variant of implementation, the communication modules are consistently located in the communication bus and have the appropriate addresses in the communication bus, corresponding to the position of the communication module in a plate heat exchanger. In other words, the order of the modules and, consequently, of the plates in a plate heat exchanger determines the address of the corresponding communication module.

what according to another variant of implementation of each communication module includes a switch, which is designed to receive the open or closed position, when the communication module is reset, thereby connecting adjacent serially arranged modules for communication with the communication bus, and a control device. Thus, the communication modules are train.

Each communication module includes a switch that is designed to receive the open or closed position, with the installation of the communication module in the initial position (zero) is produced when the switch is switched to a closed position, thereby connecting the adjacent serially arranged modules for communication with the communication bus, and a control device. Switch communication module may preferably be secured in the closed position to connect the communication module to the communication bus and a control device that allows the control device to transmit Abdoulaye signal through the communication module to the adjacent consistently located to the communication module so that the adjacent communication module connects to the communication bus and a control device.

According to another variant of implementation, the control device installed on the plate heat exchanger. The control unit may contain additional means of communication with other systems, such as system control panel is consistent control or monitoring, by suitable cables or wirelessly. The control device may also include a display or other similar device for displaying information to the user.

BRIEF DESCRIPTION of DRAWINGS

Now the present invention will be explained in more detail by describing various embodiments and with reference to the accompanying drawings.

In Fig.1 disclosed a front view of a plate heat exchanger, containing a number of wafers, according to the first variant implementation.

In Fig.2 is disclosed a side view of a plate heat exchanger along the line II-II in Fig.1.

In Fig.3 disclosed a front view of the plate heat exchanger shown in Fig.1.

In Fig.4 is disclosed a front view of part of the plate heat exchanger shown in Fig.3.

In Fig.5 is disclosed a view in section along the line V-V in Fig.4.

In Fig.6 schematically shows the communication module plate heat exchanger shown in Fig.3.

DETAILED DESCRIPTION of VARIOUS embodiments of the INVENTION

In Fig.1 and 2 shows a plate heat exchanger that contains many plates 1 forming the plate pack. Plate 1 of the heat exchanger are located next to each other, forming a number of first gaps 2 between the plates for the first environment and a few second intervals for 3 second environment. First about iucci 2 between the plates and second gaps 3 between the plates in the plate pack are interleaved. Plate 1 heat exchanger pressed one to another between the box-shaped plate 4 and the presser plate 5 by means of clamping bolts 6. In disclosed embodiments, the implementation of the plate heat exchanger contains four channel 7, forming the inlet and outlet for the first environment and the inlet and outlet for the second medium.

One of the plates 1 of the heat exchanger disclosed in Fig.3. Plate 1 heat exchanger includes a heat transfer zone 10, and an edge zone 11, which passes around the outside of the heat transfer zone 10. Marginal zone 11 contains a closed outer edge of the plate 1 of the heat exchanger. The heat exchanger plate 1 also includes a socket 12 of the strip, which lasts around 10 heat transfer between the heat transfer zone 10 and the edge area 11. The gasket 13 is installed in the socket 12 and lasts around 10 heat surrounding her.

The heat exchanger plate 1 may also contain additional socket 12' strip that goes on the edge area 11. Additional gasket 13' installed in the secondary slot 12' strip (see Fig.4). As can be seen in Fig.4, between the strip 13 and the additional gasket 13' has a gap 14. The gap 14 is closed to the environment and in relation to the intervals 2, 3 between the plates.

In disclosed embodiments, the implementation provided with four holes 15 disproportiona environment, which pass through the plate 1 of the heat exchanger. Openings 15 for the passage of the medium located inside, near the marginal zone 11. Openings 15 for the passage of the environment aligned with channel 7.

In disclosed embodiments, the implementation of the plate heat exchanger is installed and assembled the above-described manner by means of clamping bolts 6 and the strips 13, 13'. However, it should be noted that the invention is applicable to plate heat exchangers of other types. Plate 1 of the heat exchanger can be, for example, permanent way are connected to each other by welding such as laser welding or welding with an electron beam, gluing or even soldering. An example of an alternative method of mounting plates 1 of the heat exchanger is the so-called semi-welded plate heat exchanger in which the plates are welded to each other in pairs, with the pairs of heat exchanger plates can be pressed one to another by means of coupling bolts, and between the plates provided with the gasket.

Each heat exchanger plate 1 includes a communication module 20 containing the electronic circuit 21 (see Fig.5), for example, in the form of a chip. The electronic circuit 21 is enclosed or embedded in the shell 22, which protects the electronic circuit 21 from exposure to gases and liquids in the external environment.

The communication module 20 in the present implementation options provide the Yong in the edge zone 11. In the edge zone 11, the communication module 20 is adequately protected from the environment, the current in intervals 2, 3 between the plates of a plate heat exchanger. In addition, the extension Assembly 20 in position to easily outside, as seen in Fig.3. However, in the variant shown in Fig.4, the communication module 20 is provided in the gap 14. In the period of 14 communication module 20 is covered by the gasket 13 and the additional gasket 13' and thereby separated from the external environment. The heat exchanger plate 1 contains a slot 23 in the form of holes or recesses. The slot 23 is provided in the edge zone 11, for example, in the gap 14, as seen in Fig.4. The communication module 20 is secured in the slot 23, which provides the position of the communication module 20, which gives certain advantages. The slot 23 can continue up to the edge or inside edge of the plate 1 of the heat exchanger.

Each plate 1 contains the device 25, which is intended for reception or transmission. According to the disclosed variants of implementation, the device 25 contains or is a sensor for measuring a particular parameter, for example, temperature sensor, pressure sensor or a humidity sensor, and outputs a signal depending on the value of the measured parameter. The sensor or the sensor may be made of electrically conductive material in the form of at least wires is, tape, foil or mesh. The sensor or the sensor can be attached to the plate 1 of the heat exchanger or made it in the place where you want to measure a given parameter, for example, in zone 10 heat transfer. The sensor or the sensor may include an insulating layer that insulates the sensor or the sensor from electrical contact with the heat exchanger plate 1.

Unit 25 communicates, and in the disclosed embodiments implement is connected with the electronic circuitry 21 of the communication module 20 so that you can pass the signal from the device 25 or to him. In the case of the sensor signal is transmitted to the communication module 20.

The module 20 also contains a communication tool that enables you to share the signal with the control device via at least the communication module 20 different plate heat exchanger contained in this package. The device 30 contains a control processor of any suitable type. According to the opened option exercise device 30 controls mounted on the plate exchanger, such as Cabinet plate 4, as shown in Fig.1 and 2.

The means of communication modules 20 connection plates 1 of the heat exchanger and the device 30 controls constitute or contain the communication bus operating on a suitable communication Protocol. In disclosed embodiments, the implementation of the communication bus is posledovatel the s bus. Communication in the communication bus is started, monitored and controlled by the device 30 of the control.

According to the first variant of implementation of each module 20 also contains a suitable number of the main contact elements 31 located on the main side 20' module 20 links on the main side of the plate 1 of the heat exchanger, and the secondary contact elements 32 located on the opposite auxiliary side 20 of the communication module 20 and the auxiliary side plate 1 of the heat exchanger. In the embodiment described in Fig.5 and 6, the communication module 20 contains three main contact element 31 and three auxiliary contact element 32. When the plate 1 of the heat exchanger pressed one to another, the main contact element 31 one of the plates 1 of the heat exchanger is in electrical contact with the auxiliary contact elements 32 adjacent the plate 1, as shown in Fig.5. According to the first variant of implementation of the main contact elements 31 are spring elements, providing adequate electrical contact with the corresponding auxiliary contact elements 32 when the plate 1 of the heat exchanger pressed one to another.

The device 30 controls may contain the corresponding auxiliary contact elements 32, which are provided on the inner side to Pusey plate 4 or go to it. Data auxiliary contact elements 32 can be brought into electrical contact with the main contacts 31 of the external communication module 20 during Assembly of the heat exchanger.

In disclosed embodiments, the first pair of main contacts 31 and auxiliary contacts 32 of the communication module 20 is provided for the line 33 of power intended to supply power to the communication module 20. The second pair of main contact 31 and the auxiliary contacts 32 are provided for the line 34 signal transmission to transfer various signals. The third pair of main contact 31 and the auxiliary contacts 32 are provided for grounding 35 the purpose of the connection module 20 connected to earth.

The communication module 20 may include only one main contact element 31 and only one auxiliary contact element 32, and electrical ground connection may be provided through the plate 1 of the heat exchanger. Power lines and signal transmission can be connected in one line, for example, using different levels of current for power transmission and signal. The communication module 20 may also contain two, four or more main contact elements 31 and the auxiliary contact elements 32.

The communication units 20 are designed to mount or attach to each other when the plate t is pleomedia one another in the plate pack. The shell 22 of each of the communication module 20 contains a closed flange 36 that extends from the main side 20', and a closed recess 37 on the secondary side 20". When the plate 1 of the heat exchanger is compressed, the recess 37 of the communication module 20 allows you to set the auxiliary side 20 of the communication module 20 in a closed flange 36 adjacent the communication module 20, as seen in Fig.5. Thus, between the main side 20' of the communication module and the auxiliary side 20" of the adjacent communication module 20 forms a closed interval 38. Thus, the main contact elements 31 and the auxiliary contact elements 32, which is in electrical contact with each other, enclosed in the closed interval 38 and protected from the external environment. Landing between adjacent modules 20 connection preferably make tight, to prevent penetration of any liquid in a closed interval 38. Preferably, between the closed recess 37 and the closed flange 36 has been provided with a gasket 39 or any other suitable sealing element, in order to obtain a sufficient sealing of the closed period. According to an additional alternative, the shell 22 of the module 20 may be made of a soft flexible material such as an elastic polymer material that provides a seal between the development is receiving 37 and the flange 36.

Thus, the signals from each of the devices 25 can be transmitted to the device 30 management through an appropriate communication module 20 and the communication bus. The device 30 controls, therefore, are designed to receive and process signals from the devices 23 and all of the plates 1 of the heat exchanger. The device 30 controls may include a display 40 for displaying information to the user (see Fig.1). The device 30 controls may also contain communications with other systems, for example with the system of centralized control or observation.

The communication bus operating in accordance with the appropriate serial communication Protocol is designed to allow communication between the device 25 and the device 30 control via the communication units 20. The communication units 20 arranged in series one behind the other in such a way that the signal is transmitted between the device 30 to control the communication module and the considered device 25 via communication modules provided between the device 30 control and considered by the device 20.

The communication units 20, thereby sequentially formed by a communication bus and have the appropriate addresses in the communication bus, corresponding to the position of the communication module 20 in a plate heat exchanger. In other words, the order of the modules 20 communication plastination heat exchanger determines the address of the corresponding module 20 connection.

Each communication module 20 includes a switch 41 (see Fig.6), which is designed to receive the unlock position before installing the communication bus in the initial position and its starting to take its locked position, when the communication module is reset by a signal from the device 30 controls. The modules 20 communication or electronic circuit 21 units 20 connected by train.

When one of the modules 20 connection reset, the switch 41 of the communication module 20 is closed so that the communication module 20 connected to the communication bus and the device 30 controls. Then the device 30, the control transmits the reset signal through the communication module 20 to the adjacent consistently located to the communication module 20 so that the adjacent communication module 20 is attached to the communication bus and the device 30 controls. This is repeated until there are none reset the communication module 20 that is responsive to the reset signal. The device is now 30 control "knows" the order in which modules are 20 links, and each module 20 can be recognized by the device 30 controls to access it using its position in the stack of plates. Therefore, do not require a unique identification code for each module 20 communication, as the communication bus and the individual modules 20 connection is configured automatically during casting the initial state and run.

This means that all modules are 20 communication can be the same. In addition, it gives the advantage consisting in the fact that any plate 1 of the heat exchanger module 20 may be provided in any position in a plate heat exchanger, as its address in the communication bus is automatically given during installation to its original state.

As mentioned above, the device 30 of the control starts the communication bus and the network address of the communication units 20. The main part of the logical signals and alarm signals can be performed by the device 30 controls. This reduces the complexity and cost of the modules 20 ties and, thus, also of the plates 1 of the heat exchanger. It also allows you to reduce the amount of information sent over the communication bus. For example, the sensor device 25 can transmit only the actual value of the measured parameter, while the alarm limit and the identification of the alarm is determined by the device 30 controls. Thus, it is easy to change the limits of the alarm. Due to the unique address of each module 20 communication device 30 management can inform the operator, for example, via the display 40 or through centralised control or monitoring, not only when triggered the alarm, but also to indicate what kind of plates which he worked.

According to another variant of implementation, the device 25 comprises a generator voltage, designed to produce a voltage which can be fed to the heat exchanger plate 1. This voltage may be filed to avoid contamination on the plates 1 of the heat exchanger or to eliminate them, especially in the area of 10 heat transfer. According to this variant implementation of the communication bus is used to transfer voltage from the device 30, the management or any other suitable source of voltage connected to the device 30 management, to individual modules 20 links on the respective plates 1 of the heat exchanger.

According to another variant implementation of the plates 1 of the heat exchanger is a plate with double walls made between two adjacent plates, which are pressed to each other. When using such a double-wall device 25, for example in the form of a sensor of the aforementioned type may be provided between adjacent plates plate 1 of the heat exchanger.

The present invention is not limited to the disclosed variants, but may be changed and modified within the scope of the following claims.

1. Plate to plate heat exchanger, comprising:
(10) heat transfer
marginal zone (11), which passes around and is Aruji zone (10) heat transfer and
device (25) which has a capability of receiving or signal;
characterized in that it contains a module (20) communication containing an electronic circuit (21) connected to the device (25), the module (20) also contains the means of communication, enabling the exchange of the said signal device (30) control via at least one module (20) ties the other plate (1) heat exchanger plate pack.

2. Plate heat exchanger under item 1, in which the module (20) connections are made so as to be formed by the communication bus, operating according to a suitable communication Protocol.

3. The plate heat exchanger according to any one of paragraphs.1 and 2, in which the connection means includes at least one main contact element (31), located on the main side of the wafer (1) heat exchanger, and at least one auxiliary contact element (32), located on the opposite auxiliary side plate (1) of the heat exchanger.

4. The plate heat exchanger according to any one of paragraphs. 1 and 2, in which the device (25) includes a sensor configured to measure at least one parameter and outputting a signal depending on the given parameter.

5. The plate heat exchanger according to any one of paragraphs.1 and 2, in which the device (25) comprises a generator voltage, designed to produce a voltage is applied to the plate (1) of the heat exchanger.

6. The plate heat exchanger according to any one of paragraphs.1 and 2, in which the module (20) of the connection is provided in the marginal zone (11).

7. The plate heat exchanger according to any one of paragraphs.1 and 2, containing the socket (12) strip that runs around the area of heat transfer (10) between the heat transfer area (10) and the edge area (11) and intended to receive the strip (13), and an additional socket (12') of the strip, which is held at the edge area (11) and which is an additional gasket (13'), and between the socket (12) of the strip and an additional socket (12') of the strip there is a gap (14), in which you installed the module (20) of the connection.

8. The plate heat exchanger according to any one of paragraphs.1 and 2, containing the slot (23) in the marginal zone (11), slot (23) has a module (20) of the connection.

9. Plate heat exchanger, containing a number of wafers (1) according to any of the preceding paragraphs, with the plate (1) of the heat exchanger are located next to each other, forming a number of first gap (2) between the plates for the first environment and a few second gap (3) between the plates for the second environment.

10. The plate heat exchanger according to p. 9, in which the module (20) of the connection and the device (30) control is formed by a communication bus operating in accordance with a suitable communications Protocol.

11. The plate heat exchanger according to p. 10, in which the communication bus is a sequential matching athelney bus.

12. Plate heat exchanger according to one of paragraphs.10 and 11, in which the modules (20) communications are a train.

13. Plate heat exchanger according to one of paragraphs.10 and 11, in which the modules (20) communications are consistently located in the communication bus and have a corresponding address in the communication bus, corresponding to the position of the module (20) of the connection plate heat exchanger.

14. The plate heat exchanger according to p. 13, in which each module (20) the communication contains a switch (41), which is designed to receive the open or closed position, the module (20) of the connection is set in the initial position, when the switch (41) is switched to a closed position, thereby connecting the adjacent serially arranged modules (20) communication with the communication bus and a device (30) of the control.

15. The plate heat exchanger according to p. 14, in which the switch (41) of the module (20) communication in a closed position is provided to connect the communication module to the communication bus and a device (30) control, which allows the device (30) control transfer Abdoulaye signal through this module (20) due to the adjacent consistently located the module (20) of the connection so that the adjacent module (20) of the connection is attached to the communication bus and device (30) of the control.

16. Plate heat exchanger according to any one of paragraphs.9-11, in which trojstvo (30) controls mounted on the plate heat exchanger (1).



 

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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

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: 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: 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

FIELD: machine building.

SUBSTANCE: heat exchanger system through which the liquid flows comprises a heat exchanger with liquid inlet and outlet, a bypass valve with liquid inlet and outlet and a self-cleaning filter with a liquid inlet and two liquid outlets; one of the latter is meant for the filtered liquid and the other - for the unfiltered liquid. The filtered liquid outlet is connected to the heat exchanger inlet and the unfiltered liquid outlet - to the valve inlet, the heat exchanger outlet is connected downstream regarding the valve outlet.

EFFECT: heat exchanger clogging up is excluded.

9 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: automatic keeping of a heat carrier temperature inside a tube within the specified range is performed. A liquid-and-gas tube-and-shell heat exchanger with an automatic control system for the heat exchange process control comprises a casing from two concentrically set cylinders with heat exchanging tubes installed in-between, the upper part of the central tube is fitted with a gas damper with the output end of its axis being connected to a drive mechanism which is presented as a lever coupled with a heat controller by a rod.

EFFECT: development of design for a tube-and-shell liquid-and-gas heat exchanger with automatic control.

4 dwg

FIELD: heating.

SUBSTANCE: heat exchanging plate for plate heat exchanger contains a heat transfer zone (10) and edge zone (11), extended around the heat transfer zone. The heat exchange plate is a plate with a double wall formed by two adjacent plates, compressed to be contacted with each other. The heat exchange plate contains the sensor (20), which is designed with a possibility of determination, at least, one parameter and output of the parameter-dependent signal, and the sensor has a sensor probe (21), designed to be located between adjacent plates.

EFFECT: improvement of leak detection in plate heat exchangers with the plates with double walls.

18 cl, 9 dwg

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