Method of hybrid unit control and hybrid unit itself for its implementation
FIELD: machine building.
SUBSTANCE: invention relates to the method of a hybrid unit control and to the hybrid unit in which this method can be implemented. Control method for a unit 1 comprising at least a compressor plant 2 and/or a drying unit on one side and a heat regeneration system 3 on the other side. The heat regeneration system 3 absorbs heat from the compressor plant 2. Additionally the hybrid unit 1 comprises a controller 5 and a device 6 to set one or more system parameters. The controller 5 performs control both of the compressor plant 2 and/or the drying unit and the heat regeneration system 3 on the basis of the said system parameters along with the optimisation of the overall efficiency of the hybrid unit.
EFFECT: reduction of total power consumption by the hybrid unit.
3 cl, 1 dwg
This invention relates to a method of controlling a combined device and the combined device, which can be applied to this method.
In particular, the invention provides for control of a unit that contains at least the compressor and/or a device for drying and heat recovery system.
It is known that the compression gas compressor installation is associated with the release of huge amounts of heat.
Known compressor with means for heat recovery, with the highest possible efficiency of regeneration. Traditionally, the compressors are equipped with the basic regulation through control of the compressor in accordance with the required amount of compressed air.
In known devices, the flow of coolant is controlled by a thermostatic valve at the outlet of the cooling system. Thus, it is possible to control the flow of refrigerant to the outlet temperature of the cooling system remains constant and equal to a predetermined value.
When using thermostatic valve this set value is fixed and cannot be adjusted in accordance with consumption.
Thus, regardless absorbed by the refrigerant heat outlet temperature of the cooling system the Oia will always be the same.
The disadvantage is that the efficiency of the compressor, and the whole combined system is not optimized.
Thus, due to the lack of any form of optimization, the combined device will be subjected, for example, temperature fluctuations.
These temperature fluctuations are often undesirable and can also contribute to premature wear of the device.
WP 2008/106774 describes the management system converting the heat of the gas engine into electricity. It fails to recognize the extent to which optimization of the heat recovery system affects the efficiency and reliability of the gas engine.
The purpose of this invention is to eliminate one or more of the above disadvantages and/or other disadvantages by providing ways to control a unit that contains at least the unit and/or a device for drying, on the one hand, and the heat recovery system, on the other hand, the heat recovery system absorbs heat from the compressor and/or device for drying, while the combined device further comprises a controller for establishing one or more system parameters of the compressor and/or device for drying and a heat recovery system, the ri this aforementioned system parameters to determine the effectiveness separately, respectively, of the compressor and/or device for drying and a heat recovery system, while the controller operates as a compressor unit and/or a device for drying and heat recovery system, based on the above system parameters, optimizing the overall efficiency of the combined device.
The invention also concerns a combined device, which consists, on the one hand, of the compressor and/or device for drying, and on the other hand, a heat recovery system for heat recovery from compressors and/or device for drying, and above the combined device also includes a means for establishing one or more system parameters of the above-mentioned compressor units and/or devices for drying, and heat recovery system, while the above system parameters are determined by the efficiency separately, respectively, of the compressor and/or device for drying, and heat recovery system, while the above-mentioned means are connected to a controller, which operates as a compressor unit and/or a device for drying and heat recovery system, based on the above system parameters, optimizing the overall efficiency of the combined device.
The advantage is that this method provides the best overall effective is here, which is implemented by the management as compressor unit and/or a device for drying and heat recovery system, so that substantially reduces the overall power consumption of the combined device.
Here, the overall efficiency is not only about energy efficiency, but may also include, for example, economic efficiency.
To ensure the feasibility of monitoring the overall effectiveness, the controller uses some settings from a user device, such as the cost of electricity, the cost of fuel to generate heat and/or similar. In each operating mode of the combined device overall efficiency is estimated on the basis of the regulated system settings and the user settings.
Another advantage is that the control of compressor unit and/or a device for drying and heat recovery system can be reconfigured at each other.
A related advantage is that the combined device can be better protected from many undesirable factors such as excessively high temperatures or large temperature fluctuations cooler, or similar.
When the warning appears all these tender is athelny factors limited as far as possible, the wear of the combined device, and thus the service life of the combined device may be increased.
It is clear that the combination of the two administrations opens prospects for a number of control methods that can be implemented in the management of only the compressor device.
To better represent the characteristics of the invention below by the example disclosed, without any limitation, a preferred variant of the combined device according to this invention, and a preferred method according to the invention, with reference to the accompanying drawing.
The above drawing represents the combined device 1, which in this case, first of all, consists of a compressor device 2 and system 3 heat recovery.
As is known, the compressor device 2 may have a body with the compressor element in him, which is driven by an electric motor.
In addition, the compressor device 2, in General, has a cooling system 4.
According to the invention the combined device 1 also has a controller 5, which is made preferably in the form of a separate electronic component.
In addition, according to the invention, there are means 6, which is able to install one or more system parameters.
Dunn is the first tool 6 may, for example, to include temperature sensors, pressure sensors, etc. and may, for example, be located at the outlet 7 of the compressed gas and/or the output 8 of the cooling system.
This means 6 preferably are connected by electric cables 9-10 controller 5.
According to the invention the method is very simple and is shown below.
First of all, the user must be selected optimization criterion.
This criterion can be pre-programmed into the electronic controller 5, but this is not a necessary condition for the described invention.
To establish system parameters during operation of the combined device 1, one or more system parameters can be measured or established means 6 continuously and/or at regular points in time.
Measured and/or set parameters preferably send on intended for this purpose, lines 9 and 10 data transfer to the controller 5.
On the basis of the measured parameters of the system controller 5 can send the signal as the compressor device 2, and system 3 heat recovery electric cables 11 of the control.
The signals that are sent to the controller 5, depend from the selected criteria, and measured /or set parameters of the system.
It goes without saying that control of the Lehr 5 may also include an algorithm which processes various measured and/or set parameters of the system in General, the system parameter, and that this, the last of these, the total system parameter is optimized in accordance with the established criteria.
According to the invention, as a criterion of the combined device 1 is selected for its highest possible efficiency.
In this case, the controller 5 may be an algorithm that sets the operating modes of the compressor device 2 as a function of the overall efficiency of the compressor device and system 3 heat recovery.
Thus, the algorithm can be based on measured data of the compressor device 2 and/or system 3 heat recovery.
In a practical embodiment of the invention, the controller 5 can, for example, to control the position of valve 12, which affects the flow of cooling water, the valve 12 can, for example, be opened gradually to ongoing regulation of the cooling water flow. Despite this, it is possible to simultaneously and/or manual opening and closing of this valve.
Thus, in this example, in the case of a small increase of the cooling water flow compressor device 2 is cooled better, despite the fact that there may be a greater consumption of energy is.
When the above-mentioned reduction of energy consumption in the compressor device 2, a smaller increase of power consumption in the system 3 energy regeneration, the total energy consumption of the entire device 1 will be reduced and, thus, will be optimized overall efficiency of the combined device 1.
Another example is the emergence of a growth rate of flow of coolant during periods when no energy needs from system 3 heat recovery.
In these circumstances, the flow rate of coolant should not be reduced so as not to cause a high output temperature in the combined device 1 and, hence, in this case the total energy consumption of the combined device 1 will be reduced by managed his work.
An additional criterion that can be selected to control the combined device 1 is, for example, increasing the service life and/or improve the reliability of the combined device 1.
After all, it is well known that frequent or significant changes in temperature or an excessively high output temperature, can lead to direct damage and/or premature wear of these components.
To optimize service life, can be installed the algorithm by which large temperature fluctuations will be left is sterile limited and will, as far as possible, so that the temperature of the combined device 1 will always remain in the safe operating area.
It is clear that such control is possible by the compressor device 2, and system 3 heat recovery.
Another practical example that can be applied to the method according to the invention, is combined device 1 with the compressor device 2 and the boiler.
The stream of water that flows through the boiler, in General, depends on the needs of the pair.
With changing needs in the pair will also change the requirement in hot water to heat it in the boiler.
The application of the method according to the invention allows to control the water temperature as a function of a selected criterion of the combined device 1, and according to the invention, the criterion is to optimize the overall efficiency.
As a possible additional criteria may be selected condition, when the compressed gas is cooled so that hot water is always available for production at any time greater amount of steam.
Another possible additional criterion may be the condition when the compressed gas is cooled efficiently as possible, even with little or no needs for steam production.
Other practical is a mere example, which can be used a method according to the invention, is the heating of water for sanitary system the heat from the compressor device 2.
In sanitary systems, such as showers, in General, there is a constant need for hot water, but hot water consumption is rather periodic.
Thus, it may be temporary, very high demands for hot water, for example, when the user takes a shower.
The purpose of the method according to the invention, the temperature of the refrigerant in the compressor can be controlled so that the compressed gas is cooled and water for sanitation system is heated only when you need hot water in the shower.
Thus, the method according to the invention provides the ability to adjust regulation to a compressed gas, as far as possible, effectively cooled when the demand for hot water in the sanitary system is missing or limited.
Of course, the above is not limited to the heating of pure water for sanitary systems, but may also be applied, for example, a mixture of water and glycol, or, in General, any other liquid or other mixture of liquids and/or any gas or mixture of gases.
The above method provides the advantage that improves the overall efficiency of combined what about the devices 1, ie, joint sanitary system 3 and the compressor device 2.
In a further practical embodiment of the combined device 1 according to the invention, control the speed of the compressor device, and the rotation speed of this compressor device 2 sets the set value of the pressure of the compressed gas at the outlet of the compressor device 2 and within a certain range of pressure against it. As a result, the controller 5 can control the said rotation speed on the basis of what is happening in the heat recovery system, and, for example, to temporarily allow a wider range of pressure relative to the specified value.
Ultimately, the specific consumption of the compressor device 2 also depends on the rotation speed. Even though this may lead to higher consumption, the amount of regenerated energy will also increase, so the potential savings in fuel costs.
It is clear that the concept of the compressor device 2 may refer to a single compressor or compressor group with a number of stages of compression.
Of course, the compressor, the group may be a group of stages of compression connected in both series and parallel series of compressors and/or combinations of them.
The invention is not limited to or and the YMI combined device 1, which contain a combination of compressor 2 and system 3 heat recovery, but also relates to the combined device, which contains a combination of devices for drying and system 3 heat recovery, as in this latter case, the heat generated in the device for drying may be recovered through a system of 3 heat recovery.
In each of the above applications, the compressor 2 can be replaced by a device for drying, or a combination of the compressor 2 with a device for drying.
This invention is not limited to the implementation described as an example and represented in the drawings, with the exception of the method according to the invention, control of the combined device and a combination unit which can be applied this method can be implemented in all kinds of variants, without leaving the scope of the invention.
1. The method of controlling the device (1)which contains, at least, a compressor unit (2) and/or a device for drying and system (3) heat recovery, absorbing heat from the compressor (2) and/or device for drying, characterized in that the combined device (1) includes a controller (5) and means (6) to establish one or more parameters of the system, as to impressoras unit (2) and/or device for drying, and a heat recovery system, while the aforementioned system parameters to determine the effectiveness separately, respectively, of the compressor and/or device for drying and a heat recovery system, with the controller (5) operate as a compressor unit (2) and/or a device for drying, and (3) heat recovery, on the basis of the above system parameters, optimizing the overall efficiency of the combined device (1).
2. The combined device containing the unit (2) and/or a device for drying and system (3) heat recovery compressor (2) and/or device for drying, characterized in that the above-mentioned combined device (1) also includes means (6) to establish one or more system parameters of the above-mentioned compressor (2) and/or device for drying and a heat recovery system, while the aforementioned system parameters to determine the effectiveness separately, respectively, of the compressor and/or device for drying and a heat recovery system, and the above means (6) connected to the controller (5), which operates as a compressor unit (2) and/or a device for drying, and (3) heat recovery, on the basis of the above system parameters, with Optim is the nation overall efficiency of the combined device (1).
3. The device (1) according to claim 2, characterized in that the system (3) heat recovery is a system for heating a fluid medium.
SUBSTANCE: invention is referred to the field of electric engineering and operation of systems with asynchronous electric motor and frequency control, in particular to control of rotation speed and prevention of critical operation modes. Technical result of the method lies in that reliability of the cavitator is improved; its stable operation is maintained by means of operation mode correction when the detected sign proves potential stalling with change in the electric motor rotation speed. The method for control of stability improvement in cavitator operation includes liquid passing in a gap between the rotor and stator and subsequent conversion of the received energy into thermal energy, control by the heating process. The claimed method for control of the cavitator operation modes is based on the analysis of higher harmonics ratio in the electric mains, its comparing with the threshold value and shaping of the control signal for frequency control unit which controls the rotation speed of the electric motor.
EFFECT: control method allows reaching maximum efficiency for activation of process liquids for the purpose of their use in different processes of chemical production such as dilution, heat generation, and synthesis.
FIELD: power engineering.
SUBSTANCE: thermoelectric link comprises a coolant pipe, coated with a layer of a dielectric material with high heat conductivity, made of separate circular toothed ribs with teeth that are tightly pressed to each other, inside of each one there are circular zigzag-shaped rows of thermoelectric sections, made of alternating and joined thermoemission converters, each comprising a pair of sections made of different metals M1 and M2, ends of which are flattened and tightly pressed to each other and arranged in zones of heating and cooling, near the edge of the rib tooth and the external surface of the coolant pipe, accordingly, besides, free ends of zigzag-shaped circular rows of each thermoelectric section are connected to each other by links, and free ends of circular rows of extreme thermoelectric sections, in their turn, are connected by electric wires with collectors and current leads.
EFFECT: increased reliability and efficiency of a thermoelectric link for a pipe.
SUBSTANCE: method comprises the following steps: (a) mixing a first substance which includes an oil-bearing rock and a second substance which includes sensitive particles in form of dipole antennae to form a mixture of 10-99 vol. % of the first substance and 1-50 vol. % of the second substance; (b) exposing said mixture to radio frequency energy with frequency or frequencies from said set of one or more radio frequencies and power sufficient for heating the sensitive particles; and (c) continuing exposure to radio frequency energy over a period of time sufficient for heating sensitive particles of said mixture to average temperature higher than about 100°C (212°F). The method is characterised by that said sensitive particles are conducting carbon fibres with length between 1/2, 1/4, 1/8 and 1/16 the wavelength.
EFFECT: said sensitive particles can have advantages for radio frequency heating of hydrocarbon compounds, for example high temperature, anhydrous treatment as well as higher rate or efficiency.
14 cl, 3 ex, 1 dwg
SUBSTANCE: liquid heating apparatus comprises a heat generator comprising a housing having a cylindrical portion and a liquid movement accelerator, designed as a cyclone, a pump connected to the heat source via an injection nozzle, where at least one insert is placed, and a heat exchange system. The insert is formed as a continuous plate along the injection nozzle oriented perpendicular to the ends of the cyclone. The insert in the injection nozzle forcibly expands the jet in its entry into the cyclone, which results in formation of a vacuum region, downstream the compression region, the vacuum again, compression, etc. As we move into the cyclone, collapse and cavitation are formed in turns on each element of the jet flow in these regions, providing hot water or other process fluid.
EFFECT: invention makes it possible to improve heating efficiency and reliability of a fluid device.
10 cl, 5 dwg
FIELD: engines and pumps.
SUBSTANCE: electrically driven pump-heat generator comprises encased scroll, impeller, discharge outlet, stator and drive motor hollow rotor running in plain bearings. Heat tube is made inside said hollow rotor. Hydrodynamic rotary cavitator fitted on the shaft incorporates ultrasound resonance cavitation amplifier. Coaxial heat tubes are fitted on hollow shaft between said stator and rotor.
EFFECT: higher efficiency, decreased electric power consumption.
2 cl, 1 dwg
SUBSTANCE: hydraulic heat generator comprises a cylindrical body with a cover and a bottom, an element in the form of a wound spring, nozzles for supply of cold water and drain of hot water. A wound flat spring with holes is fixed to turns of a hollow element, in its cylindrical part, outside, in the horizontal position, and on the vertical pipe installed inside the element there are hollow washers installed, filled with a heat-accumulating substance and equipped with holes. The vertical shaft from a wind engine via a reducer and a horizontal shaft having a solid disc at the end, is mechanically via a finger on a disc and a crank are connected with a connecting rod and a stem rigidly fixed with a hollow element and a pipe installed inside the body.
EFFECT: compactness and reduced metal intensity with increased transforming devices, making it possible to increase coefficient of mechanical energy transformation into thermal one.
SUBSTANCE: heat generator includes a cylindrical housing, a cover plate and a bottom. Inside the housing there installed on a ring attached to the wall is a pulse speed variator having a shaft with three rows of blades, in its upper part. The cover plate is provided with an electric generator, which is mechanically connected through friction discs to a drive shaft, as well as an electric accumulator connected through leads to the generator and electric board. Under the cover plate inside the housing there installed is a tubular coil having inlet and outlet branch pipes connected to cold and hot water supply systems.
EFFECT: heat generator design is compact; it has considerable number of rotating parts, which increases its thermal efficiency.
SUBSTANCE: system includes a heat generator, in the housing of which there fixed on the shaft are two discs forming an antechamber in the housing volume, a chamber of space between the discs and a post-chamber. Location of the discs on the shaft is calculated as per a certain formula; two discs of the heat generator are filled with pressed magnets arranged in a circumferential direction; bifilar coils with working and control windings, the cores of which are put tightly into the housing, are installed above the discs. Besides, a control unit is introduced, which is arranged between working and control windings of coils; in addition, the heat generator housing volume includes an electrolyser, the pairs of electrodes of which are made of one nipple electrode, the other one that is pressed into the housing; pairs of electrodes are arranged in a circumferential direction of the housing inner volume in the space between the discs and in the post-chamber. The system also includes a gas collector of oxygen-hydrogen mixture; the heat generator inlet is connected to the receiver outlet; the heat generator outlet is connected to the gas collector, and the gas collector is connected to the receiver inlet.
EFFECT: proposed invention allows reducing power consumption for obtaining heat and generation of gases.
SUBSTANCE: heat generator is installed in a closed circuit, at which vortex flow of water is formed due to conversion of a head created with a pump and the received flow is accelerated in a water movement accelerator, with further removal of heat obtained in the heat generator from outlet water flow to the consumer. At that, at the heat generator inlet, water flow is broken with an air cavity in the zone of its phase transition, in which the impact of drops of water at its outlet in atomisation cones is provided. An air cavity is formed at the inlet of the heat generator housing, and a volute has the shape of logarithmic spiral; at that, flow of liquid from the volute to a vortex pipe is performed through the logarithmic spiral pole, and a centrifugal pump and a shutoff valve is installed between a suction pipeline and a delivery pipeline.
EFFECT: obtaining more energy-saving method and economic water heating plant.
9 cl, 1 dwg
FIELD: power engineering.
SUBSTANCE: polyfunctional step vortex heater comprises a reduction thread, connected with inlet and outlet gas lines, in which there is a gas filter, a safety stop valve, a pressure controller, a double-flow and a single-flow ribbed vortex pipes, serially connected to each other by a cold gas flow, forming separate steps closed with a board jacket, besides, the inlet nozzle of the first stage of the vortex pipe is connected with the reduction thread via a tee and a stop device, its high-temperature nozzle is connected via a cyclone to an ejector nozzle, and a low-temperature nozzle is connected with an inlet nozzle of a vortex pipe of the second stage, the high-temperature nozzle of which is connected with a receiving chamber of the ejector, the outlet nozzle of which is connected via a stop device and a tee with a gas filter of the reduction thread, and the condensate outlet from the tray of the cyclone is connected to an external collector of condensate.
EFFECT: higher reliability and efficiency of a polyfunctional step vortex heater.
SUBSTANCE: method for using soil heat accumulation properties involves arrangement in the soil of sealed heat exchangers or thermowells, arrangement of circulation of heat carrier via them and extraction from soil and/or discharge to the soil of low-potential heat energy. The method provides for moistening of an enveloping heat exchanger or a thermowell of capillary porous soil mass and introduction to the heat exchange process of latent heat of phase transitions of porous moisture contained in the soil. Soil moistening is performed in cycles. In the heat supply mode, heat carrier temperature at the inlet of the heat exchanger or the thermowell is automatically maintained at the level that does not exceed the water freezing temperature of capillary porous structure of soil mass. Condensate and/or rain water is used in the mode for conditioning and discharge of heat energy to the soil for dampening of soil mass.
EFFECT: energetically and environmentally effective heat and cold supply to buildings and structures of different purpose.
2 cl, 1 dwg
SUBSTANCE: when connected to primary heating networks operating with temperature curves of 120-70°C, 130-70°C, 140-70°C and 150-70°C without use of mixing pumps, two heating subsystems formed as a result of division of a subscriber's heating system into two circulating circuits with identical thermal loads, are connected in series via a recuperative heat exchanger, which reduces temperature of network water upstream the first (along with network water flow) subsystem due to supply of return water in it from the same (first) subsystem, which, in its turn, is heated and supplied into the second subsystem. As a result of serial connection of two subsystems to a main heating network via a recuperative heat exchanger, specific flow rate doubles in terms of 1 Gcal/hr of heating load in each of serially connected heating subsystems, and separate regulation of temperature in supply pipelines of each subsystem makes it possible to optimise temperature mode of operation of each heating subsystem.
EFFECT: provision of required temperature and hydraulic modes of heating system operation.
FIELD: power industry.
SUBSTANCE: optimum control system of energy-efficient cogenerating plants includes a miniature thermal power plant consisting of a gas turbine engine, an electric generator and its control modules, a waste heat exchanger, intermediate heat exchangers, a peak boiler, a heat pump condenser, hot water supply heat exchangers and a heat pump of low-potential heat. A new feature is that the system is additionally provided with a control module of heat energy flows, a cellular communication module of the miniature TPP, a cellular communication module of consumers, N temperature sensors of consumer rooms, N sensors of voltage value at consumers, setting devices of minimum and maximum voltage values of at consumers, N comparison units of minimum temperature and N comparison units of maximum temperature of consumer rooms, N comparison units of minimum voltage and N comparison units of maximum voltage at consumers; at that, N information outputs as to temperature of consumer rooms of cellular communication module of the miniature TPP are connected to the control module of heat energy flows and the first inputs of N comparison units of minimum temperature and N comparison units of maximum temperature of consumer rooms, the second inputs of which are connected to setting devices of minimum and maximum temperatures respectively, N information outputs of voltage value at consumers of the cellular communication module of the miniature TPP are connected to the control module of heat energy flows and the first inputs of N comparison units of minimum and maximum voltage respectively, outputs of N comparison units of minimum temperature and N comparison units of maximum temperature of consumer rooms, N comparison units of minimum voltage and N comparison units of maximum voltage at consumers are connected to the control module of heat energy flows, temperature sensors of consumer rooms and voltage value at consumers are connected through inputs of cellular communication modules of consumers.
EFFECT: improving control efficiency of cogenerating plants by means of continuous control of distribution of heat flows.
FIELD: power industry.
SUBSTANCE: temperature sensitive device for water accumulation device in which the quantity of accumulated hot water can be determined as per the height of position of hot/cold water boundary, which involves the following: several temperature sensors for installation on different levels in water accumulation device and control unit for determination of position of the used sensor based on the order in which sensors record the temperature change during operation of water accumulation device.
EFFECT: improving performance characteristics.
FIELD: power industry.
SUBSTANCE: water heating device for hot water supply to consumer includes combined plant of combined heat and power plant (CHPP), heat accumulator and secondary heating device. CHPP plant and secondary heating device are designed for operation in the first mode at which CHPP plant supplies the heat to heat accumulator, and secondary heating device supplies all the heated water to consumer, which provides his needs for heat, and for operation in the second mode at which secondary heating device is inactive, and heated water providing the needs for heat released by CHPP plant and/or heat accumulator.
EFFECT: improvement of the device.
2 cl, 4 dwg
FIELD: power industry.
SUBSTANCE: hybrid-type heat pump system for heat and cold supply includes heat pump equipment, heat accumulation system, cold supply or air conditioning system, collection system of low-potential heat energy and utilisation system of secondary heat resources. Heat pump system is implemented as per hybrid scheme and connected to conventional heat supply system used as additional heat energy source or room terminal; at that, hydraulic circuit of heat accumulation system to which storage tanks are connected is closed and its heat carrier is hydraulically not connected to heat carrier of heating system and to water in hot water supply system.
EFFECT: increasing energy efficiency.
6 cl, 1 dwg
SUBSTANCE: method to use heat-accumulating properties of soil includes arrangement of tight heat exchangers in soil, for instance, heat wells, organisation of a coolant circulation in them and withdrawal from soil, and/or discharge of low-potential heat energy into soil. At the same time directed flow of ground waters is arranged in soil with the help of open wells, at least one of which is a water-intake well and one is for water injection, at the same time the ground water extracted from soil prior to its injection back into soil may be cooled, picking low-potential heat, or heated, discharging low-potential heat in soil.
EFFECT: higher power efficiency of using heat-accumulating properties of soil.
2 cl, 1 dwg
FIELD: power industry.
SUBSTANCE: system of one-pipe heat and water supply consists of basic heat source, of heat main supplying hot delivery water into serviced city and inter-city systems, and of installations utilising heat and delivery water for urban needs. The system consists of three circuits of: high-, medium and low temperature heat carrier connected between them in such way, that delivery water form the high temperature circuit is partially utilised for industry needs and as a heating carrier to city CHP (central heating points); upon cooling in those it is supplied to an average temperature circuit. In its turn this circuit is the source of low potential heat for heat pumping stations supplying heat to its group of city consumers so, that delivery water cooled in evaporators of heat pumping installations -HPI- flows into the low temperature circuit, wherefrom cooled delivery water is supplied into a city system of sweet water production and to technical needs of city.
EFFECT: increased reliability of heat supply.
3 cl, 1 dwg
FIELD: heating systems.
SUBSTANCE: invention refers to heat engineering, and namely to heat generators, and can be used for heating of and hot water supply to private housing stock. Heating system includes hydraulic water-intake circuit and closed hydraulic heating circuit, heat generator, pump connected to heat generator through delivery branch pipe, and heat exchangers connected to heat generator through direct pipeline and return pipeline of closed hydraulic heating circuit, which is connected to suction branch pipe of the pump. System is equipped with two-section heat and noise insulated capacity, on inner wall of one of sealed sections there installed is a heat generator with drive from submersible electric motor, which is rigidly connected thereto, and made in the form of cylindrical sealed housing with cavity inside which on electric motor shaft there arranged with the possibility of turning is a hollow perforated rotor inside which there rigidly installed are at least two or more uniformly distributed radial division plates with n through holes. On cylindrical surface of sealed heat generator housing there located is at least one or more uniformly distributed outlet holes with branch pipes bent in the intended direction of rotor rotation, and inlet branch pipe of the first section of capacity is connected to pump delivery branch pipe. Outlet branch pipe is connected to direct pipeline of closed hydraulic heating circuit; in the second sealed section of heat and noise insulated capacity, which is isolated from the first one, there located is heat exchanger the inlet whereof is connected through an automatic control valve to the first section, and the outlet - to return pipeline of closed hydraulic heating circuit. Besides, to the first section there connected is hydraulic circuit for hot water supply, and in hydraulic water intake circuit there installed is pressure water supply pump to heat and noise insulated capacity and to hydraulic circuit for private use. System is equipped with controls and instrumentation and with shutoff control valves.
EFFECT: improving operating efficiency of heat generator and optimising heating and hot water supply system.
3 cl, 3 dwg
FIELD: devices for heating of individual buildings used in regions where there are no central heating systems, or such a system is severely worn out and disabled.
SUBSTANCE: the device has a compression pump for pumping up water into the chamber - accumulator, pipe-lines for water delivery, set of parallel tubes with a low inside diameter for water delivery to the large-capacity chamber-heater at a high rate, providing for a slow passage of water and, due to it, flapping of cavitation bubbles and water heating, and a set of parallel-connected calorifers heated by this water for heating of rooms. The compression pump pumps up water into the accumulator at a pressure of 5 to 10 MPa, from which water at a rate of 90 to 100 m/s passes through 50 to 100 and more parallel tubes with an inside diameter of 5 to 10 mm and comes to the chamber-heater, where the cavitation bubbles are flapped at a pressure of 5 to 10 MPa and heat the water to a temperature of 100 to 150 C and higher. Then the water comes to the calorifers, and from the calorifers to the heat exchanger heating the water for the domestic needs. Then, the cooled water comes to the compression pump again thus completing the working cycle.
EFFECT: enhanced efficiency of the heating system operation of the basis of the experimental results, enhanced reliability of system operation.
2 cl, 1 dwg
SUBSTANCE: invention relates to a fan header and method of its manufacturing. With the help of a laser they cut shells, flanges in the form of a circumference segment, connection flanges and stands in the form of stiffening ribs. Flanges and stands are made with T-shaped slots, and shells - with response cogs. Flanges in the form of the circumference segment, connection flanges and stands in the form of stiffening ribs are welded into metal frames. Frames are fixed to shells by means of joint cogs in T-shaped slots and welding in points of jointing to form sectors. Then the produced structure undergoes hot galvanisation.
EFFECT: increased durability of a product due to fine cutting of a header and a shell blanks, and hot galvanisation of items.
3 cl, 4 dwg