CN214333088U - Multi-channel energy-saving type refrigeration heating temperature control system - Google Patents
Multi-channel energy-saving type refrigeration heating temperature control system Download PDFInfo
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- CN214333088U CN214333088U CN202120136731.4U CN202120136731U CN214333088U CN 214333088 U CN214333088 U CN 214333088U CN 202120136731 U CN202120136731 U CN 202120136731U CN 214333088 U CN214333088 U CN 214333088U
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Abstract
The utility model discloses an energy-saving refrigeration heating temperature control system of multichannel, its structure includes circulation system, refrigerating system and small-size refrigerating system. The utility model has the advantages that: 1) the structure is compact and reasonable, the operation and the use are convenient, and the refrigerating machine can be linearly cooled to a low-temperature section under the working condition of high temperature (-10-100 ℃); 2) an antagonistic refrigerating system is added, when the antagonistic refrigerating system is mainly used for external no-load or low-load, the cold energy generated by a set of independent small refrigerating system is utilized to keep the temperature of the circulating cold-carrying medium constant, the compressor of the small refrigerating system has small power, the longer the working time is, the more obvious the energy-saving advantage is; 3) the system is a one-to-many temperature control system, and the flow rate distributed by each path is ensured to be the same through the water separator and the water collector; 4) the multi-point operation and model-free self-tree building algorithm can be adopted, the temperature of a hysteresis target value can be controlled within +/-0.5 ℃ in a constant temperature mode aiming at the temperature control of a large hysteresis system, and the up-down frequent fluctuation is avoided.
Description
Technical Field
The utility model relates to a multichannel energy-saving refrigeration heating temperature control system.
Background
In the prior art, the consistency of the flow of each path is difficult to ensure by a multi-split refrigeration and heating system, the temperature of each path is difficult to synchronize due to inconsistent flow, and although the existing problems can be solved, the manufacturing cost and the failure rate can be increased by times if each path adopts an independent refrigeration and heating system.
For a cooling and heating system with temperature control requirement, the temperature of a cold-carrying medium needs to be monitored in real time, so that the cold-carrying medium needs to flow in a pipeline in a circulating manner to keep the uniformity of the temperature in the whole pipeline, in this case, a circulating pump needs to work continuously, as the circulating pump can generate certain heat when working, the part of heat can be taken away by the cold-carrying medium to cause the temperature to rise continuously, so that a refrigerating unit needs to run to resist the part of heat, for a large refrigerating unit, the refrigerating power of a compressor is often far greater than the heat generated by the running of the circulating pump, the temperature can be kept rising by frequent starting and stopping of the compressor, the mode is not energy-saving, the frequent starting and stopping has great influence on the service life of the compressor, or the output of the cold of the refrigerating unit can be controlled by an energy regulation mode, which is superior to the frequent starting and stopping of the compressor, however, the manufacturing cost is often much higher, the complex control procedure increases the frequency of occurrence of faults, and the energy regulation generally has a minimum value, and if the minimum value is lower than the minimum value, the temperature fluctuation is large, which is often the case in a large-scale refrigeration system.
For the temperature control precision, in the temperature reduction process, when the temperature is close to the set value, the redundant cold energy of the refrigeration compressor is usually resisted by the heater to meet the requirement of temperature control, so that the power consumption of the whole equipment is overlarge, and the energy efficiency ratio is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-saving refrigeration heating temperature control system of multichannel, its purpose aims at overcoming the above-mentioned not enough that prior art exists, provides an energy-conserving, high-efficient, safe and reliable's temperature control system that drags more, guarantees that every flow all the way is the same.
The technical solution of the utility model is as follows: a multi-channel energy-saving type refrigeration heating temperature control system structurally comprises a circulating system, a refrigeration system and a small refrigeration system,
the circulating system comprises an expansion tank, a gas-liquid separator, an evaporator, a heating pipe, a water collector and a water separator, wherein the top of the expansion tank is connected with the top of the gas-liquid separator through a pipeline with an exhaust stop valve, the bottom of the expansion tank is connected with the side surface of the gas-liquid separator through a pipeline with a one-way valve, the side surface of the gas-liquid separator is connected with the water collector through a pipeline, the bottom of the gas-liquid separator is sequentially connected with a circulating pump, a first passage of the evaporator, the heating pipe and the water separator through pipelines, the water collector and the water separator are respectively connected with a heat-conducting medium inlet pipe and a heat-conducting medium outlet pipe, and the heat-conducting medium inlet pipe and the heat-conducting medium outlet pipe are respectively provided with a temperature sensor;
the refrigerating system comprises a compressor and a heat regenerator, the oil separator, the sleeve condenser and the liquid storage tank, the compressor is respectively connected with the top and the bottom of the oil separator through pipelines, the top of the oil separator is also connected with the bottom of the sleeve condenser through a pipeline, the bottom of the sleeve condenser is connected with the top of the liquid storage tank through a pipeline, the bottom of the sleeve condenser is connected with a cooling water inlet pipe and a cooling water outlet pipe with a flow switch, the top of the liquid storage tank is connected with a drying filter through a pipeline, the drying filter is connected with a first passage of a heat regenerator through a pipeline with a throttling device, the first passage of the heat regenerator is connected with a second passage of an evaporator through a pipeline, the second passage of the evaporator is connected with the second passage of the heat regenerator through a pipeline, and a hot gas bypass pipe is arranged between the pipeline between the oil separator and the sleeve condenser and the pipeline between the first passage of the heat regenerator and the second passage of the pipeline connected with the evaporator;
the small refrigeration system comprises an antagonistic double-pipe condenser, an antagonistic compressor, an antagonistic heat regenerator, an antagonistic dry filter, an antagonistic liquid storage tank and an antagonistic evaporator, wherein the bottom of the antagonistic double-pipe condenser is respectively connected with a cooling water inlet pipe and a cooling water outlet pipe at the bottom of the double-pipe condenser through two pipelines, the bottom of the antagonistic double-pipe condenser is connected with the antagonistic compressor through a pipeline, the antagonistic compressor is connected with a first passage of the antagonistic heat regenerator through a pipeline, a first passage of the antagonistic heat regenerator is connected with a first passage of the antagonistic evaporator through a pipeline, a first passage of the antagonistic evaporator is connected with a second passage of the antagonistic evaporator through a pipeline, the second passage of the antagonistic heat regenerator is connected with the antagonistic dry filter through a pipeline, the antagonistic dry filter is connected with the antagonistic dry filter through a pipeline, the antagonistic liquid storage tank is connected with the bottom of the antagonistic double-pipe condenser through a pipeline, and the second passage of the antagonistic evaporator is respectively connected with the liquid storage tank and the pipeline between the heating pipe and the water separator through a pipeline, A pipeline between the gas-liquid separator and the water collector.
Preferably, the expansion tank is provided with a liquid level meter, and the top of the expansion tank is provided with a liquid filling port.
Preferably, the throttling device comprises an expansion valve arranged on a pipeline between the drying filter and the heat regenerator, and an auxiliary liquid supply electromagnetic valve and a copper ball valve arranged on a bypass pipeline of the pipeline between the drying filter and the heat regenerator.
Preferably, the hot gas bypass pipe is provided with a quick-opening valve, an air conditioner valve and a silencer.
Preferably, an oil charge low-pressure meter is arranged on a pipeline between the second passage of the heat regenerator and the compressor, an oil charge high-pressure meter is arranged on a pipeline between the compressor and the top of the oil separator, and the pipeline between the second passage of the heat regenerator and the compressor and the pipeline between the compressor and the top of the oil separator are connected with the high-low pressure controller.
Preferably, the heating pipe is a U-shaped light pipe, and the heating pipe is connected with the three-phase voltage regulator, the mechanical temperature protection switch and the cold-carrying medium flow switch.
Preferably, an oil-filled high-voltage meter and a high-voltage switch are arranged on a pipeline between the antagonistic casing condenser and the antagonistic compressor, an oil-filled low-voltage meter and a low-voltage switch are arranged on a pipeline between the antagonistic compressor and the antagonistic heat regenerator, an antagonistic expansion valve is arranged on a pipeline between the antagonistic heat regenerator and the antagonistic dry filter, and an electric regulating valve is arranged on a pipeline between the antagonistic evaporator, the heating pipe and the water distributor.
The utility model has the advantages that: 1) the structure is compact and reasonable, the operation and the use are convenient, and the refrigerating machine can be linearly cooled to a low-temperature section under the working condition of high temperature (-10-100 ℃);
2) an antagonistic refrigerating system is added, when the antagonistic refrigerating system is mainly used for external no-load or low-load, the cold energy generated by a set of independent small refrigerating system is utilized to keep the temperature of the circulating cold-carrying medium constant, the compressor of the small refrigerating system has small power, the longer the working time is, the more obvious the energy-saving advantage is;
3) the system is a one-to-many temperature control system, and the flow rate distributed by each path is ensured to be the same through the water separator and the water collector;
4) the multi-point operation and model-free self-tree building algorithm can be adopted, the temperature of a hysteresis target value can be controlled within +/-0.5 ℃ in a constant temperature mode aiming at the temperature control of a large hysteresis system, and the up-down frequent fluctuation is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the multi-channel energy-saving refrigeration heating temperature control system of the present invention.
In the figure, a is a circulation system, B is a refrigeration system, C is a small refrigeration system, 1 is an expansion tank, 101 is an exhaust shutoff valve, 102 is a check valve, 2 is a gas-liquid separator, 201 is a circulation pump, 3 is an evaporator, 4 is a heating pipe, 5 is a water collector, 6 is a water separator, 7 is a compressor, 71 is a high-low pressure controller, 8 is a heat regenerator, 81 is an oil charge low pressure gauge, 82 is an oil charge high pressure gauge, 9 is an oil separator, 91 is a quick-opening valve, 92 is an (hot gas bypass) air conditioning valve, 93 is a muffler, 10 is a casing condenser, 11 is a liquid storage tank, 12 is a drying filter, 121 is an expansion valve, 122 is an auxiliary passage liquid supply solenoid valve, 123 is a copper ball valve, 13 is an antagonistic casing condenser, 14 is an antagonistic compressor, 15 is an antagonistic heat regenerator, 16 is an antagonistic drying filter, 17 is an antagonistic liquid storage tank, and 18 is an antagonistic evaporator.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1, a multi-channel energy-saving type refrigeration, heating and temperature control system structurally comprises a circulation system a, a refrigeration system B and a small refrigeration system C.
Circulation system A include expansion tank 1, vapour and liquid separator 2, evaporimeter 3, heating pipe 4, water collector 5 and water knockout drum 6, 1 top of expansion tank is through the 2 tops of pipe connection vapour and liquid separator that have exhaust stop valve 101, 1 bottom of expansion tank is through the 2 sides of pipe connection vapour and liquid separator that have check valve 102, 2 sides of vapour and liquid separator are through pipe connection water collector 5, 2 bottoms of vapour and liquid separator connect gradually circulating pump 201 through the pipeline, 3 first passageways of evaporimeter, heating pipe 4 and water knockout drum 6, water collector 5 and water knockout drum 6 connect heat-conducting medium respectively and advance the pipe and heat-conducting medium exit tube, heat-conducting medium advances the pipe and heat-conducting medium exit tube and is equipped with temperature sensor respectively.
The expansion tank 1 is provided with a liquid level meter and a liquid filling port at the top.
The circulating system A is a fully-closed system, oil mist does not exist at high temperature, moisture in air is not absorbed at low temperature, pressure cannot rise due to high temperature during operation of the system, and heat-conducting media are automatically supplemented at low temperature.
When the circulation system A is filled with heat conducting oil: the heat conducting oil is injected into the expansion tank 1, the exhaust stop valve 101 is opened, the circulating pump 201 is opened, the heat conducting oil is pumped into the system from the expansion tank 1, meanwhile, air in the system is discharged, the air in the system is continuously discharged through the continuous injection of the heat conducting oil, and the exhaust stop valve 101 is closed until the air in most parts of the system is discharged. So as to form a circulating system without contacting with air. (the first exhaust may have a little residual air in the system, which is carried out along the expansion process through several temperature raising and lowering processes.)
After the equipment is started, the circulating pump 201 can always run, the temperature of the medium outlet is detected through the temperature sensor arranged on the circulating pipeline, so that the running of the refrigeration compressor 7 is controlled, and meanwhile, the output proportion of the electric heating pipe 4 is adjusted through the three-phase voltage regulator, so that the accurate temperature control is realized.
The refrigerating system B comprises a compressor 7, a heat regenerator 8, an oil separator 9, a casing condenser 10 and a liquid storage tank 11, wherein the compressor 7 is respectively connected with the top and the bottom of the oil separator 9 through pipelines, the top of the oil separator 9 is also connected with the bottom of the casing condenser 10 through a pipeline, the bottom of the casing condenser 10 is connected with the top of the liquid storage tank 11 through a pipeline, the bottom of the casing condenser 10 is connected with a cooling water inlet pipe and a cooling water outlet pipe with a flow switch, the top of the liquid storage tank 11 is connected with a drying filter 12 through a pipeline, the drying filter 12 is connected with a first passage of the heat regenerator 8 through a pipeline with a throttling device, the first passage of the heat regenerator 8 is connected with a second passage of the evaporator 3 through a pipeline, the second passage of the evaporator 3 is connected with the second passage of the heat regenerator 8 through a pipeline, the second passage of the heat regenerator 8 is connected with the compressor 7 through a pipeline, and a pipeline between the first passage of the oil separator 9 and the casing condenser 10 and a pipeline between the first passage of the heat regenerator 8 and the second passage of the pipeline connected with the evaporator 3 A hot gas bypass pipe is arranged.
The throttling device comprises an expansion valve 121 arranged on a pipeline between the dry filter 12 and the regenerator 8, and an auxiliary liquid supply electromagnetic valve 122 and a copper ball valve 123 arranged on a bypass pipeline of the pipeline between the dry filter 12 and the regenerator 8.
The hot gas bypass pipe is provided with a quick opening valve 91, an air conditioning valve 92 and a silencer 93.
An oil charge low pressure meter 81 is arranged on a pipeline between the second passage of the heat regenerator 8 and the compressor 7, an oil charge high pressure meter 82 is arranged on a pipeline between the compressor 7 and the top of the oil separator 9, and the pipelines between the second passage of the heat regenerator 8 and the compressor 7 and between the compressor 7 and the top of the oil separator 9 are connected with the high-low pressure controller 71.
A refrigeration mode: the compressor 7 operates to compress the gaseous refrigerant into high-temperature high-pressure gaseous refrigerant, the refrigerant carried in the refrigerant steam is separated by the oil separator 9 and returns to the compressor 7 through an oil return pipe, then the gaseous refrigerant is condensed into high-pressure liquid refrigerant after passing through the casing condenser 10, the high-pressure liquid refrigerant flows into the liquid storage tank 11 after passing through the casing condenser 10, the liquid storage tank 11 can store a large amount of liquid refrigerant to ensure the liquid supply amount of the evaporator 3, meanwhile, fluctuation caused by load change is avoided, the liquid refrigerant is filtered from the liquid storage tank 11 through the drying filter 12, then the liquid refrigerant enters the throttling device, when the liquid refrigerant is directly refrigerated from high temperature, the auxiliary liquid supply electromagnetic valve 122 is opened to supply liquid into the heat regenerator 8 and the evaporator 3, and when the temperature is reduced to a certain set value, the auxiliary liquid supply electromagnetic valve 122 is closed, the throttled liquid refrigerant firstly passes through the heat regenerator 8 and is evaporated in the heat regenerator 8 to exchange heat with the gaseous refrigerant coming out of the evaporator 3, so that the return air temperature of the compressor 7 is not overhigh. In the cooling mode, when the temperature is reduced to be close to the set value, the hot gas bypass function starts to intervene to participate in the regulation of the cooling capacity, and the temperature control requirement is realized through the output proportion of the quick opening valve 91. The hot gas bypass can be manually adjusted through an air conditioner valve 92, and a silencer 93 is arranged at the rear part, so that no great air flow noise exists in the hot gas bypass process.
The heating pipe 4 is a U-shaped light pipe, and the heating pipe 4 is connected with a three-phase voltage regulator, a mechanical temperature protection switch and a cold-carrying medium flow switch.
In the heating mode, the heating pipe 4 is arranged in the liquid storage tank by adopting a U-shaped light pipe, the output proportion of heating power is adjusted by a three-phase voltage regulator according to a set temperature value, and the heating pipe is provided with a mechanical temperature protection switch and a cold-carrying medium flow switch, so that the heating pipe is effectively prevented from being burnt.
The small-sized refrigeration system C comprises an antagonistic casing condenser 13, an antagonistic compressor 14, an antagonistic heat regenerator 15, an antagonistic dry filter 16, an antagonistic liquid storage tank 17 and an antagonistic evaporator 18, wherein the bottom of the antagonistic casing condenser 13 is respectively connected with a cooling water inlet pipe and a cooling water outlet pipe at the bottom of the casing condenser 10 through two pipelines, the bottom of the antagonistic casing condenser 13 is connected with the antagonistic compressor 14 through a pipeline, the antagonistic compressor 14 is connected with a first passage of the antagonistic heat regenerator 15 through a pipeline, the first passage of the antagonistic heat regenerator 15 is connected with a first passage of the antagonistic evaporator 18 through a pipeline, the first passage of the antagonistic evaporator 18 is connected with a second passage of the antagonistic heat regenerator 15 through a pipeline, the second passage of the antagonistic heat regenerator 15 is connected with the antagonistic dry filter 16 through a pipeline, the antagonistic dry filter 16 is connected with the antagonistic liquid storage tank 17 through a pipeline, and the antagonistic liquid storage tank 17 is connected with the bottom of the antagonistic casing condenser 13 through a pipeline, the second path of the antagonistic evaporator 18 is respectively connected with the pipeline between the heating pipe 4 and the water separator 6 and the pipeline between the gas-liquid separator 2 and the water collector 5 through pipelines.
An oil-filled high-voltage meter and a high-voltage switch are arranged on a pipeline between the antagonistic casing condenser 13 and the antagonistic compressor 14, an oil-filled low-voltage meter and a low-voltage switch are arranged on a pipeline between the antagonistic compressor 14 and the antagonistic heat regenerator 15, an antagonistic expansion valve is arranged on a pipeline between the antagonistic heat regenerator 15 and the antagonistic dry filter 16, and an electric regulating valve is arranged on a pipeline between the antagonistic evaporator 18 and the pipelines between the heating pipe 4 and the water distributor 6.
And in the countermeasure mode, when no load or low load exists outside, the temperature of the circulating cold-carrying medium is kept constant by using cold energy generated by a set of independent small-sized refrigerating system C, the power of the countermeasure compressor 14 of the small-sized refrigerating system C is very small, the refrigerating principle is simple, the main compressor 7 immediately enters the countermeasure mode once stopped, the countermeasure compressor 14 is started, the medium flow entering the countermeasure evaporator 18 is controlled by an electric regulating valve, and therefore the refrigerating capacity required by countermeasure is accurately controlled.
All the above components are prior art, and those skilled in the art can use any model and existing design that can implement their corresponding functions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (7)
1. A multi-channel energy-saving refrigeration heating temperature control system is characterized by comprising a circulating system (A), a refrigeration system (B) and a small refrigeration system (C),
the circulating system (A) comprises an expansion tank (1), a gas-liquid separator (2), an evaporator (3), a heating pipe (4), a water collector (5) and a water distributor (6), wherein the top of the expansion tank (1) is connected with the top of the gas-liquid separator (2) through a pipeline with an exhaust stop valve (101), the bottom of the expansion tank (1) is connected with the side surface of the gas-liquid separator (2) through a pipeline with a one-way valve (102), the side surface of the gas-liquid separator (2) is connected with the water collector (5) through a pipeline, the bottom of the gas-liquid separator (2) is sequentially connected with a circulating pump (201), a first passage of the evaporator (3), the heating pipe (4) and the water distributor (6) through pipelines, the water collector (5) and the water distributor (6) are respectively connected with a heat-conducting medium inlet pipe and a heat-conducting medium outlet pipe, and the heat-conducting medium inlet pipe and the heat-conducting medium outlet pipe are respectively provided with a temperature sensor;
the refrigeration system (B) comprises a compressor (7), a heat regenerator (8), an oil separator (9), a sleeve condenser (10) and a liquid storage tank (11), wherein the compressor (7) is respectively connected with the top and the bottom of the oil separator (9) through pipelines, the top of the oil separator (9) is also connected with the bottom of the sleeve condenser (10) through a pipeline, the bottom of the sleeve condenser (10) is connected with the top of the liquid storage tank (11) through a pipeline, the bottom of the sleeve condenser (10) is connected with a cooling water inlet pipe and a cooling water outlet pipe with a flow switch, the top of the liquid storage tank (11) is connected with a drying filter (12) through a pipeline, the drying filter (12) is connected with a first passage of the heat regenerator (8) through a pipeline with a throttling device, the first passage of the heat regenerator (8) is connected with a second passage of the evaporator (3) through a pipeline, the second passage of the evaporator (3) is connected with the second passage of the heat regenerator (8) through a pipeline, a second passage of the heat regenerator (8) is connected with the compressor (7) through a pipeline, and a hot gas bypass pipe is arranged between the pipeline between the oil separator (9) and the sleeve condenser (10) and the pipeline between the first passage of the heat regenerator (8) and the second passage of the pipeline connecting evaporator (3);
the small-sized refrigeration system (C) comprises an antagonistic double-pipe condenser (13), an antagonistic compressor (14), an antagonistic heat regenerator (15), an antagonistic dry filter (16), an antagonistic liquid storage tank (17) and an antagonistic evaporator (18), wherein the bottom of the antagonistic double-pipe condenser (13) is respectively connected with a cooling water inlet pipe and a cooling water outlet pipe at the bottom of the double-pipe condenser (10) through two pipelines, the bottom of the antagonistic double-pipe condenser (13) is connected with the antagonistic compressor (14) through a pipeline, the antagonistic compressor (14) is connected with a first passage of the antagonistic heat regenerator (15) through a pipeline, the first passage of the antagonistic heat regenerator (15) is connected with a first passage of the antagonistic evaporator (18) through a pipeline, the first passage of the antagonistic evaporator (18) is connected with a second passage of the antagonistic heat regenerator (15) through a pipeline, and the second passage of the antagonistic heat regenerator (15) is connected with the antagonistic dry filter (16) through a pipeline, the countermeasure dry filter (16) is connected with the countermeasure liquid storage tank (17) through a pipeline, the countermeasure liquid storage tank (17) is connected with the bottom of the countermeasure sleeve condenser (13) through a pipeline, and the second passage of the countermeasure evaporator (18) is respectively connected with the pipeline between the heating pipe (4) and the water separator (6) and the pipeline between the gas-liquid separator (2) and the water collector (5) through pipelines.
2. The multi-channel energy-saving refrigeration heating temperature control system as claimed in claim 1, wherein the expansion tank (1) is provided with a liquid level meter and a liquid filling port at the top.
3. A multi-channel energy-saving type refrigeration heating temperature control system as claimed in claim 1, wherein said throttling means comprises an expansion valve (121) disposed in the pipe between the dry filter (12) and the heat regenerator (8), and an auxiliary liquid supply solenoid valve (122) and a copper ball valve (123) disposed in the bypass pipe of the pipe between the dry filter (12) and the heat regenerator (8).
4. A multi-channel energy-saving type refrigeration heating temperature control system as claimed in claim 1, wherein said hot gas bypass pipe is provided with a quick-opening valve (91), an air-conditioning valve (92) and a silencer (93).
5. A multi-channel energy-saving refrigeration heating temperature control system as claimed in claim 1, wherein the pipeline between the second path of the heat regenerator (8) and the compressor (7) is provided with an oil-filled low-pressure gauge (81), the pipeline between the compressor (7) and the top of the oil separator (9) is provided with an oil-filled high-pressure gauge (82), and the pipeline between the second path of the heat regenerator (8) and the compressor (7) and the pipeline between the compressor (7) and the top of the oil separator (9) are connected with the high-low pressure controller (71).
6. The multi-channel energy-saving type refrigeration heating temperature control system according to claim 1, wherein the heating pipe (4) is a U-shaped light pipe, and the heating pipe (4) is connected with a three-phase voltage regulator, a mechanical temperature protection switch and a cold-carrying medium flow switch.
7. A multi-channel energy-saving type refrigeration heating temperature control system as claimed in claim 1, wherein the pipeline between the antagonistic casing condenser (13) and the antagonistic compressor (14) is provided with an oil-filled high-pressure meter and a high-pressure switch, the pipeline between the antagonistic compressor (14) and the antagonistic heat regenerator (15) is provided with an oil-filled low-pressure meter and a low-pressure switch, the pipeline between the antagonistic heat regenerator (15) and the antagonistic dry filter (16) is provided with an antagonistic expansion valve, and the pipeline between the antagonistic evaporator (18) and the pipelines between the heating pipe (4) and the water separator (6) is provided with an electric control valve.
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| CN115220503A (en) * | 2022-07-18 | 2022-10-21 | 江苏凌氢新能源科技有限公司 | Temperature and humidity adjusting and controlling method for environmental test chamber |
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| CN115220503A (en) * | 2022-07-18 | 2022-10-21 | 江苏凌氢新能源科技有限公司 | Temperature and humidity adjusting and controlling method for environmental test chamber |
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