RU2184269C1 - Heat utilization compressor - Google Patents

Abstract

FIELD: compression of gases in different branches of industry. SUBSTANCE: invention can used secondary heat sources and ecologically clean heat of sun, thermal waters and other sources as energy source, heat and cold sources. Heat utilization compressor has reversible motor- fan, heat exchanger-cooler, regenerator, heat exchanger-heater and reservoir, all connected in tandem by means of pipelines. Intake and outlet self-operating return (cutoff) valves are connected to pipeline between heat exchanger-cooler and reversible motor-fan. In multiple stage version of device, heat exchangers-coolers and heat exchangers-heaters are assembled into banks, and reservoirs are arranged coaxially with individual inlets and outlets and interstage cutoff valves are installed between stages. All pipelines and internal surfaces of reservoirs are coated with thin layer of heat insulation. To provide self-contained operation of device, its motor- fans are provided with independent control system. The system and motor-fans are supplied with current by thermoelectric generator which has thermal contact with heat exchanger-heater and heat exchanger-cooler. EFFECT: simplified design, improved reliability, increased life, cut down expenses. 6 cl, 4 dwg

Description

 The invention relates to compressor engineering and can be used as a source of compressed gas.

 Known thermal pump [1], containing a system of specially located tubes filled with pumped fluid, inlet and outlet valves and accessories.

 A disadvantage of the known device is that it is intended only for pumping liquids and cannot be used for compression and injection of gases.

 A device for creating ultra-high pressures [2], containing a sealed container with inlet and outlet valves, inside which is located a heater.

 A disadvantage of the known device is its low efficiency and a very long cycle time.

 A multi-stage thermocompressor [3] is known, comprising compression chambers located through common heat-insulating walls with shut-off valves in the form of a package of toroidal cavities, heat-transfer agent and refrigerant collectors, and heat-transferring and heat-removing pistons from heat-conducting material.

 A disadvantage of the known thermocompressor is its low efficiency and long time duration of one cycle.

 Known thermocompressor [4], containing a compression chamber, at the ends of which are collectors / heat exchangers / coolant and refrigerant, a regenerator placed in the chamber, equipped with porous nozzles and an axial displacement rod, a pipeline with shut-off (non-return) valves, and the nozzles are placed on the ends of the regenerator and its rod is connected to a mechanical drive through a double-sided spring compensator of axial movement.

The disadvantages of the known thermocompressor are:
- the presence of a stem sealing assembly, which will lead, especially at high operating pressures, to gas leaks and energy consumption for overcoming the friction forces in the sealing assembly;
- shock nozzles during operation of the thermocompressor, which reduce the reliability of the device as a whole;
- insufficient heat exchange surface of the end walls of the housing to transfer the necessary amount of heat, which leads to an increase in the temperature difference between the coolant and the working fluid in the hot cavity, respectively, and the refrigerant (heat removal medium) and the working fluid in the cold cavity, and this, in turn, leads to greater irreversibility of heat transfer processes and lower efficiency.

 A known installation for air conditioning [5], containing a refrigerant circuit with a compressor and heat exchangers, external fans that serve to blow air heat exchangers.

 In this known device (as in others), fans are used to blow heat exchangers and are not used to move the working medium in a closed loop in order to change the pressure in the closed loop itself.

 The prototype of the invention is a heat-utilizing compressor [6], comprising a heat exchanger-cooler, a regenerator, a heat exchanger-heater and a cylindrical tank with inlet and outlet valves and with a gas transfer system made in the form of a complex combined displacer with hydraulic drive.

The disadvantages of the known heat-using compressor are:
- the presence of a stem sealing assembly, which will lead, especially at high operating pressures, to gas leaks and energy consumption for overcoming the friction forces in the sealing assembly;
- energy costs to overcome the friction between the displacer and the walls of the cylinder;
- the presence of a source of mechanical energy, as well as a system for converting it into reciprocating motion to drive the displacer rod, which in turn greatly complicates the design of a heat-using compressor, especially a multi-stage one.

 All these shortcomings reduce the efficiency of the system as a whole, including its reliability, service life and profitability.

 These shortcomings set the task of increasing the efficiency of the heat-utilizing compressor, namely, simplifying the design, increasing its reliability, service life and economy.

 This task is achieved by the fact that in a heat-utilizing compressor containing a heat exchanger-cooler, a regenerator, a heat exchanger-heater and a cylindrical tank with inlet and outlet self-acting valves and with a gas transfer system, the gas transfer system is made in the form of a sealed reversible engine - a fan installed on the pipeline between the tank and the heat exchanger-cooler, the inner surfaces (cavities) of the tank and connecting x pipelines are covered with a layer of thermal insulation, self-acting inlet and outlet valves are connected to the pipeline connecting the reversible motor-fan and heat exchanger-cooler.

 The heat-consuming compressor can be multistage, while its containers are made in the form of coaxial pipes located in each other with plugs, the inner surfaces (cavities) of the tanks and connecting pipelines are covered with a layer of thermal insulation, heat exchangers-coolers and heat exchangers-heaters of each stage are combined into packages with general supply and removal of heat, and pipelines connecting reversible motors-fans with heat exchangers-coolers are interconnected interstage with interacting check valves, the inlet valve is connected to the automatic line of the first stage, and the output of automatic valve is connected to the last stage.

 In a multi-stage heat-utilizing compressor, containers can be made in the form of spheres combined with each other with individual inputs and outputs.

 The reversible motor-fans of the heat-utilizing compressor are equipped with a control system consisting of an electric current source, an electromagnetic relay with four groups of switching contacts, a resistor and a sensor installed in one of the capacitors, which is a movable contact installed between two fixed contacts on a bimetallic plate, with one source pole electric current is connected to one contact of the coil of the electromagnetic relay, with a normally open contact of the second gr uppy and with a controlled contact of the fourth group, the other pole of the electric current source is connected to a movable contact of the temperature sensor mounted on a bimetallic plate, and to the controlled contacts of the first and third groups, the contact of the temperature sensor, which touches its movable contact when heated, is connected through a resistor to controlled contact of the second group, and the contact of the temperature sensor, which touches its movable contact during cooling, is connected to another contact of the coil of the electromagnetic relay e and with a normally open contact of the first group, one pole of the reversing motor-fan is connected to the normally closed contact of the fourth group and the normally open contact of the third group, and the other pole is connected to the normally closed contact of the third group and normally open to the contact of the fourth group.

 In a multi-stage heat-utilizing compressor, reversible motors-fans of the next stages are connected in parallel by their different poles (identical poles in pairs through a step), one contact of the parallel connection of reversible motors-fans is connected to a normally closed contact of the fourth group and a normally open contact of the third group, and another contact is connected to normally closed contact of the third group and normally open contact of the fourth group.

 The electric current source of the heat-utilizing compressor is made in the form of a thermoelectric battery having thermal contact with a heat exchanger-cooler and a heat exchanger-heater.

 The implementation of the gas movement system in the form of a sealed reversible motor-fan is necessary to eliminate leaks of compressed gas and reduce friction losses. Since the system of moving the compressed medium (gas) is located in a closed loop of the heat-using compressor, leakage of the compressed gas is completely eliminated, and friction losses between structural elements are significantly reduced (minimized) (friction will only be in the engine bearings), and therefore overall efficiency will increase, in particular reliability and service life. As you know, the service life (without maintenance) of fan motors is several years.

 Placing a sealed reversible engine-fan in the pipeline between the tank and the heat exchanger-cooler is necessary to create its normal operating temperature (the gas temperature at this point will be close to the temperature of the refrigerant).

 Coating the internal surfaces (cavities) of the tank and connecting pipelines with a layer of thermal insulation is necessary to reduce heat loss to the environment, as well as to reduce their thermal inertia (as is known from the work of a heat-using compressor, its working medium is heated and cooled alternately, therefore, thermal insulation is necessary to exclude ( reduction) of periodic heating and cooling of structural elements). The implementation on the inner surfaces (walls) of tanks and connecting pipelines of the insulation layer is also necessary to reduce heat loss by thermal conductivity of the structural elements of the heat-using compressor.

 The connection of the inlet and outlet self-acting valves to the pipeline connecting the reversible engine-fan and heat exchanger-cooler is necessary for suction and discharge of gas with a temperature close to the temperature of the heat exchanger-cooler (usually equal to the ambient temperature), which is usually necessary for the consumer, as well as for interstage cooling of the pumped compressed gas. This facilitates the temperature regime of the valves.

 The implementation of the heat-utilizing compressor is multi-stage, so that its containers are made in the form of coaxial pipes located in each other with plugs, heat exchangers-coolers and heat exchangers-heaters of each stage are combined into packages with a common supply and removal of heat, and pipelines connecting reversible motors fans with heat exchangers-coolers, interconnected by interstage self-acting check valves, while the inlet self-acting valve is connected to the pipeline first stage, and the output self-acting valve connected to the last stage "is necessary to increase the degree of compression (final degree of compression and discharge) while maintaining the compactness of its design.

 The execution of containers in the form of coaxial pipes located in each other with plugs is necessary to reduce the voltage in the capacities of the steps from internal overpressure, as well as increase compactness. So, the central container (the last stage) will be affected by its internal pressure and it will partially balance the pressure of the previous stage, etc., which in turn will reduce the mass characteristics of the containers, in addition, compactness and overall dimensions of the multi-stage heat compressor will decrease. . Along with this, cylindrical tanks provide low hydraulic resistance to the gas moving along them.

 Combining (combining), respectively, heat exchangers-coolers and heat exchangers-heaters of each stage in packages with a common supply and removal of heat is necessary to increase compactness, reduce heat loss to the environment (compared to many separate heat exchangers).

 The implementation of the capacities of a multistage heat-utilizing compressor in the form of spheres combined in each other with individual inputs and outputs is necessary to minimize weight and size characteristics and maximize compactness.

 Implementation of a control system for reversible motor-fans of a heat-using compressor in the form of an electromagnetic relay with four groups of switching contacts, a resistor and a sensor installed in one of the containers, which is a movable contact installed between two fixed contacts on a bimetallic plate, and one pole of the electric current source is connected to one contact of the coil of the electromagnetic relay, with a normally open contact of the second group and with a controlled contact group, the other pole of the electric current source is connected to a movable contact of the temperature sensor mounted on a bimetallic plate, and to the controlled contacts of the first and third groups, the contact of the temperature sensor, which touches its movable contact when heated, is connected through a resistor to the controlled contact of the second group, and the contact of the temperature sensor, which is affected by its movable contact during cooling, is connected to another contact of the coil of the electromagnetic relay and to a normally open contact Ohm of the first group, one pole of the reversible motor-fan is connected to the normally closed contact of the fourth group and the normally open contact of the third group, and the other pole is connected to the normally closed contact of the third group and the normally open contact of the fourth group, it is necessary for the autonomous operation of the heat-using compressor, i.e. self-controlled from a temperature sensor made in the form of a bimetallic plate. The heating and cooling modes of gas switch autonomously depending on the gas temperature in one cavity of the heat-utilizing compressor, where the temperature sensor is installed.

 Connection in a multi-stage heat-use compressor of reversible motors-fans of a heat-use compressor in the control system so that the reversible motors-fans of the next stages are connected in parallel by their different poles (identical poles in pairs through the stage), one parallel contact of the reversible motors-fans is connected to the normally closed contact of the fourth group and normally open contact of the third group, and the other contact is connected to the normal but the closed contact of the third group and the normally open contact of the fourth group, it is necessary to use one control system to control all reversible motor-fans of the stages of the heat-using compressor.

 The implementation of the electric current source in the form of a thermoelectric battery having thermal contact with a heat exchanger-cooler and heat exchanger-heater is necessary for the autonomous operation of a heat-using compressor having only one source and one heat receiver.

 The introduction of the totality of the above new distinctive features (new elements and new connections) ensures the achievement of the task: increasing the efficiency of the heat-insulating compressor.

 The implementation of the heat-using compressor in combination with the above features (distinguishing features of the claims) is new for heat-using compressors and, therefore, meets the criterion of "novelty."

 The above set of distinctive features is not known at this level of technology and does not follow from well-known rules for the design of heat-using compressors and their auxiliary equipment, which proves compliance with the criterion of "inventive step".

 The constructive implementation of a heat-using compressor with the specified set of essential features does not present any structural, technical and technological difficulties, from which the criterion "industrial applicability" follows.

 Thus, each of the distinguishing features and all of them together are aimed at achieving the task - to increase the efficiency of the heat-using compressor.

 Figure 1 presents the stage diagram of the heat-using compressor.

 Figure 2 - diagram of a three-stage heat-using compressor.

 In FIG. 3 - a possible layout of containers (compression chambers) in the form of spherical shells with individual inputs and outputs.

 In FIG. 4 a) is a circuit diagram of an autonomous drive and control system for a single-stage heat-using compressor, and in FIG. 4 b) is a multi-stage.

 The heat-insulating compressor consists (see Fig. 1) of a cooler-cooler 1, a regenerator 2, a heat exchanger-heater 3, a tank 4, a reverse motor-fan 5 in an airtight housing, an inlet 6 and an outlet 7 shut-off valves.

 The multi-stage heat-utilizing compressor consists of (see Fig. 2) a package of coolers-coolers 1, regenerators of steps 2, a package of coolers-heaters 3, tanks 4, reversible fan motors 5 enclosed in sealed enclosures, inlet 6, interstage 7 and outlet 8 shut-off valves.

 It is possible to perform containers 4 spherical (see figure 3).

 In FIG. 4 is a schematic diagram (electrical) of an autonomous drive and control system, which contains a thermoelectric generator (TEG), to which heat Q1 is supplied and heat Q2 is removed, an electromagnetic relay ER with four groups of switching contacts K1, K2, K3, K4, a resistor and an installed in one of the containers of the temperature sensor (TD), which is located between two fixed "cold" X (lower in Fig.4) and "hot" G (upper in Fig.4) contacts mounted on a bimetal plate movable (center active) A contact connected to one pole of the TEG and controlled contacts of the groups K1 and K3, the other pole of the TEG is connected to the controlled contact of the group K4, the normally open contact of the group K2 and to one output of the relay coil of the ER, the other output of which is connected to the normally open contact of the group K1 and the central contact of the temperature sensor, the upper contact of which is connected through a resistor R to the controlled contact of group K2.

 For a single-stage heat-consuming compressor (for simplicity, DC motor fans are shown, see figa), one pole of the motor is connected to a normally closed contact of group K3 and a normally open contact of group K4, and the other pole to a normally open contact of group K3 and normally closed contact group K4.

 For a multi-stage heat-consuming compressor, the fan motors are combined in steps into two groups, the connection is parallel even in one, and odd in the other direction according to the supply voltage. The fan motor groups, in turn, are connected in parallel, but with reverse polarity and are connected to the ER contacts in the same way as in a single-stage heat-using compressor.

The proposed heat-using compressor operates as follows. Initially, we set the conditions: in the heat exchanger-cooler, the temperature is T _x , in the heat exchanger-heater is T _g , in the regenerator is the steady-state temperature distribution, and all the cavities of the heat-using compressor are filled with gas. When the reversible engine-fan 5 is turned on, for example, clockwise, it pumps gas in one direction, for example, through a heat exchanger-cooler 1, a regenerator 2, a heat exchanger-heater 3 and a tank 4, from which it is returned to the heat exchanger-cooler 1. Gas, passing through the regenerator 2, it is heated and subsequently heated in the heat exchanger-heater and enters the tank 4, from which the fan 5 draws in cold compressible (compressible) gas. This will be so until heating and expanding (at the same time the gas pressure increases and it is pumped to the consumer or to the next stage) reaches the maximum temperature.

Portion Δm gas will be pumped through the inlet shutoff valve stage at a certain pressure P = P _{naked nach} • π _k, where P _nach - initial gas pressure; π _to - the degree of pressure increase of the stage, is supplied to the consumer or to the next stage for its further compression.

After that, the engine-fan 5 is turned on in the opposite direction, and the gas flows in the opposite direction: from the fan 5 to the tank 4, from which the heat exchanger-heater 3 is further to the regenerator 2, in which the gas is cooled and subsequently heated in the heat exchanger-cooler 1 In this case, the gas will be cooled, and its pressure will drop until it becomes less than P _start and the self-acting inlet shut-off valve of the stage opens and a new portion of gas Δm does not enter the stage for compression. After that, the cycle repeats.

 In a multistage heat-consuming compressor, even-odd-stage fan motors operate in antiphase, i.e. when the even in heating, then in the odd - cooling and vice versa.

 An autonomous control system works as follows: initially (at start-up), for example, the gas is in a container where the temperature sensor TD is cold and its central contact C is closed to terminal X. When the heat carrier and refrigerant are respectively supplied to the heat exchangers, an electric current will be generated under the action of which the electromagnetic relay of the ER is triggered. At the same time, it will block itself with a group of contacts K1 and turn on the motor-fan to heat the gas (see the description of operation above). When the gas reaches a temperature close to the temperature of the coolant (maximum temperature), the bimetallic central C contact Td touches contact G, as a result of which a large current passes through the resistor R and contact K2 and it turns off, simultaneously unlocks itself with contacts K1 and simultaneously disconnects the bypass contacts K2 resistance R and at the same time contacts K3 and K4 will change the polarity of turning on the reverse motor-fan, which will start to drive gas in the opposite direction - gas is cooled and sucked in Hb. When the gas is cooled in the tank 4, the bimetallic contact TD will bend in the opposite direction and touch the contact X and the whole process will be repeated. To stop the heat-using compressor, it is necessary to check the supply and removal of heat, while the TEG will cease to produce electric current and the reverse fan motors will stop. The degree of pressure increase in one stage is determined from the equation: pV = RT, where p is the pressure; V is the volume; R is the universal gas constant; T is the temperature.

где Р_{конечное} (Р_кон) - конечное давление (максимальное);
Р_{начальное} (Р_нач) - начальное давление (входа в ступень),
T_г - температура источника тепла (горячая);
Т_х - температура хладагента или окружающей среды (холодная).Where from

where P _final (P _con ) - final pressure (maximum);
P _initial (P _beginning ) - initial pressure (entry into the stage),
T _g - temperature of the heat source (hot);
T _x - the temperature of the refrigerant or the environment (cold).

будет:

.Maximum degree of pressure increase

will be:

.

где Δm - порция перекачиваемого газа и, наоборот, при Δm _→ Δm_max π_к_→ 1.
Поэтому при реальной работе теплоиспользующего компрессора

Если обозначить степень повышения давления многоступенчатого компрессора, содержащего N ступеней, через X, то будем иметь:
X = π $\genfrac{}{}{0ex}{}{\text{N}}{\text{к}}$ ,
где π_к - степень повышения давления в одной ступени многоступенчатого теплоиспользующего компрессора.But with

where Δm is the portion of the pumped gas and, conversely, when Δm _ → Δm _max π _to _ → 1.
Therefore, in the actual operation of the heat-consuming compressor

If we denote the degree of pressure increase of a multistage compressor containing N stages, through X, then we will have:
X = π $\genfrac{}{}{0ex}{}{\text{N}}{\text{to}}$ ,
where π _to - the degree of pressure increase in one stage of a multistage heat-using compressor.

For a given degree of pressure increase in one stage π _k, one can find the ratio of the volumes of all stages.

где Р_нагн - давление нагнетания ступени;
Р_начал - начальное давление (давление, при котором газ поступает в ступень);
V₁, V₂, V₃, . . .,V_N - объемы соответственно 1-ой, 2-ой, 3-й,..., N-ой ступеней.At T = const

where R _nag - pressure discharge stage;
P _started - initial pressure (pressure at which gas enters the stage);
V ₁ , V ₂ , V ₃ ,. . ., V _N - volumes of the 1st, 2nd, 3rd, ..., Nth stages, respectively.

Для нахождения объема первой ступени составляется система уравнений нагрева газа в замкнутом объеме:
Р_начал•V₁=m₁•R•T_x;
P_нагн•V₁ = (m₁-Δm)•R•T_г,
где m₁ - масса газа в первой ступени;
Δm - необходимая порция перекачиваемого газа.And since

To find the volume of the first stage, a system of equations for heating gas in a closed volume is compiled:
P _onset • V ₁ = m ₁ • R • T _x ;
P _load • V ₁ = (m ₁ -Δm) • R • T _g ,
where m ₁ is the mass of gas in the first stage;
Δm is the required portion of the pumped gas.

;

и далее

.From the system of equations follows:

;

and further

.

Зная объем V₁, π_к и конечную степень повышения давления X, можно найти число ступеней.Where from

Knowing the volume V ₁ , π _k and the final degree of pressure increase X, one can find the number of steps.

 Thus, the design of the heat-utilizing compressor is calculated.

N округляют до целого числа.

N is rounded to the nearest integer.

где

Т_x и Т_г задаются по требуемым условиям.

Where

T _x and T _g are set according to the required conditions.

 The thermal calculation and the calculation of efficiency are calculated according to known methods, taking into account the regeneration and the selected design parameters of the heat-using compressor.

 The feasibility study and the advantage of the proposed device are as follows: since the proposed device has minimal friction losses (only in the bearing assemblies of the fan motor), its reliability and service life are significantly increased, while maintaining the efficiency of regenerative thermal compressors with forced movement of the working medium. In view of the fact that the proposed heat-utilizing compressor is completely hermetic, this makes it possible to use it in various closed, gassed systems, as well as in an airless space.

 The proposed device has a very high efficiency due to the fact that it is possible to use waste heat or secondary heat resources, while a small power (of the order of several watts) is required to drive reversible fan motors, which makes it possible to power them from a small thermoelectric generator, which in turn, it allows the heat-utilizing compressor to be fully autonomous with the proposed automatic switching system.

 Since the resource of work of all is comparatively very large, the resource of the device as a whole will also be large - of the order of several years of fully autonomous operation without maintenance. Depending on the number of stages and the range of operating temperatures, the heat-utilizing compressor can compress (compress) gases under almost any pressure and can be used in various fields of technology, it is especially advantageous to use it in autonomous systems.

Sources of information
1. USSR patent 51321, class 4e, 37; 59 p., 1, 1937

 2. Copyright certificate of the USSR 127353, cl. F 04 B 19/24, 1953

 3. Copyright certificate of the USSR 1262099, cl. F 04 B 19/24, 1986

 4. Copyright certificate of the USSR 1670173, cl. F 04 B 19/24, F 25 B 29/00, 1991

 5. Copyright certificate of the USSR 1211531, cl. F 24 V 1/00, 1986

 6. Copyright certificate of the USSR 1359478, cl. F 04 B 19/24, F 25 B 9/00, 1980 - prototype.

Claims (6)

 1. A heat-utilizing compressor, comprising a heat exchanger-cooler, a regenerator, a heat exchanger-heater and a cylindrical tank with inlet and outlet self-acting valves and a gas transfer system, connected in series between the pipelines, characterized in that the gas transfer system is made in the form of a sealed reversible fan motor installed on the pipeline between the tank and the heat exchanger-cooler, the inner surfaces (cavities) of the tank and connecting pipelines are covered with a layer of insulation, self-acting intake and exhaust valves are connected to a pipeline linking a reversible motor-fan and a heat exchanger-cooler.  2. The heat-utilizing compressor according to claim 1, characterized in that it is multistage, its capacities are in the form of coaxial pipes located in each other with plugs, heat exchangers-coolers and heat exchangers-heaters of each stage are combined, respectively, in packages with a common supply and removal of heat and the pipelines connecting the reversible motor-fans with heat exchangers-coolers are interconnected by interstage self-acting check valves, while the self-acting inlet valve is connected to the piping the first stage, and the output self-acting valve is connected to the last stage.  3. The heat-utilizing compressor according to claim 1, characterized in that the containers are made in the form of spheres combined with each other with individual inputs and outputs.  4. The heat-consuming compressor according to paragraphs. 1 and 2, characterized in that the reversible fan motors are equipped with a control system consisting of an electric current source, an electromagnetic relay with four groups of switching contacts, a resistor and a sensor installed in one of the containers, which is movable mounted between two fixed contacts on a bimetallic plate contact, and one pole of the electric current source is connected to one contact of the coil of the electromagnetic relay, with a normally open contact of the second group and with a controlled contact of the fourth group, the other pole of the electric current source is connected to a movable contact of the temperature sensor mounted on a bimetallic plate, and with controlled contacts of the first and third groups, the contact of the temperature sensor, which touches its movable contact when heated, is connected through a resistor to the controlled contact the second group, and the contact of the temperature sensor, which is affected by its movable contact during cooling, is connected to another contact of the coil of the electromagnetic relay and to rmalno open contacts of the first group, one pole-reversing fan motor is connected to the normally closed contact of the fourth group and the normally open contact of the third group, and the other pole is connected to the normally closed contact of the third group, and the normally open contact of the fourth group.  5. The heat-utilizing compressor according to claim 4, characterized in that in the multi-stage heat-using compressor, the reversible motors-fans of the next stages are connected in parallel by their different poles (identical poles in pairs through the step), one parallel contact of the reversible motors-fans is connected to the normally closed contact of the fourth group and the normally open contact of the third group, and the other contact is connected to the normally closed contact of the third group and normally closed contact of the fourth group.  6. The heat-consuming compressor according to paragraphs. 4 and 5, characterized in that the electric current source is made in the form of a thermoelectric battery having thermal contact with a heat exchanger-cooler and a heat exchanger-heater.

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