CN220892439U - Low-temperature environment refrigeration dehumidification type air conditioning equipment - Google Patents
Low-temperature environment refrigeration dehumidification type air conditioning equipment Download PDFInfo
- Publication number
- CN220892439U CN220892439U CN202322615506.0U CN202322615506U CN220892439U CN 220892439 U CN220892439 U CN 220892439U CN 202322615506 U CN202322615506 U CN 202322615506U CN 220892439 U CN220892439 U CN 220892439U
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- air conditioning
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 26
- 238000004378 air conditioning Methods 0.000 title claims abstract description 22
- 238000007791 dehumidification Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 238000001704 evaporation Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 34
- 230000001012 protector Effects 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000011555 saturated liquid Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a low-temperature environment refrigeration dehumidification type air conditioning equipment, which comprises a refrigeration circulating system, a condensing pressure regulating system and a refrigerating system, wherein the refrigeration circulating system consists of a compressor, a condenser provided with a condensing fan, a liquid storage device, a filter, a thermal expansion valve, an evaporator provided with an evaporating fan and a gas-liquid separator; the inlet of the NRD check valve is connected with the outlet pipeline of the compressor, and the outlet of the NRD check valve is connected with the pipeline between the condenser and the liquid storage device. The utility model solves the problem that the air conditioning equipment cannot perform refrigeration and dehumidification under the low-temperature environment, and ensures that the air conditioning equipment meets the wide-temperature design under the refrigeration working condition.
Description
Technical Field
The utility model relates to the field of air conditioning equipment, in particular to low-temperature environment refrigeration dehumidification type air conditioning equipment.
Background
Currently, air conditioning equipment is widely used in various industries in society. In recent years, equipment with extremely large heating value such as high-power antennas, processing equipment and electronic equipment is arranged, and normally, air conditioning equipment with outdoor environment temperature below 15 ℃ cannot normally perform refrigeration work, but at the moment, a large amount of heat is still generated when some high-power antennas, processing equipment and electronic equipment work, so that the high-power antennas, the processing equipment and the electronic equipment cannot normally work due to the fact that the air conditioning does not perform timely refrigeration, the processing precision is affected, the high-power antennas, the processing equipment and the electronic equipment are seriously burnt, and when the environment temperature is low and moisture in low-temperature air is in contact with the high-temperature high-power antennas, the processing equipment and the electronic equipment, the surfaces of the high-power antennas, the processing equipment and the electronic equipment are exposed, equipment corrosion is caused, and the equipment is damaged.
Disclosure of utility model
The utility model provides a low-temperature environment refrigeration dehumidification type air conditioning device, which aims to solve the problem that the air conditioning device in the prior art cannot work normally in a low-temperature environment.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the refrigerating and dehumidifying air conditioning equipment in low temperature environment comprises a refrigerating circulation system which is composed of a compressor, a condenser provided with a condensing fan, a liquid storage device, a filter, a thermal expansion valve, an evaporator provided with an evaporating fan and a gas-liquid separator, wherein a refrigerant outlet of the compressor in the refrigerating circulation system is connected with an inlet of the condenser through a pipeline, an outlet of the condenser is connected with an inlet of the liquid storage device through a pipeline, an outlet of the liquid storage device is connected with an inlet of the filter through a pipeline, an outlet of the filter is connected with an inlet of the thermal expansion valve through a pipeline, an outlet of the thermal expansion valve is connected with an inlet of the evaporator through a pipeline, an outlet of the evaporator is connected with an inlet of the gas-liquid separator through a pipeline, and an outlet of the gas-liquid separator is connected with a refrigerant return port of the compressor; and the NRD check valve inlet bypass is connected with a pipeline of the compressor refrigerant outlet, and the NRD check valve outlet bypass is connected with a pipeline between the condenser outlet and the liquid storage device inlet.
Furthermore, the condensing pressure regulating system also comprises a condensing pressure regulating valve, and the condensing pressure regulating valve is communicated with a pipeline between an outlet of the condenser and an inlet of the liquid storage device.
Further, the condensing pressure regulating system further comprises a first thermal protector and a first crank heating belt arranged on the compressor.
Further, the condensing pressure regulating system also comprises a second thermal protector and a second crank heating belt which are arranged on the liquid storage device.
Further, the condensing pressure regulating system further comprises a third heat protector and a third crank heating belt which are arranged on the gas-liquid separator.
Further, a heating and dehumidifying device is arranged on the air outlet side of the evaporating fan.
In the utility model, a fan speed regulator, an NRD check valve, a condensing pressure regulating valve, first to third heat protectors and first to third crank heating belts form a condensing pressure regulating system, and a heating and dehumidifying device forms a heating and dehumidifying system.
During the cooling operation in a high-temperature environment, the cooling circulation system realizes the ventilation and cooling circulation of the indoor, so that the indoor temperature is reduced. In low temperature environment in winter, system pressure after the condensation reduces, leads to getting into the evaporimeter through heating power expansion valve and carrying out the refrigerant reduction that evaporates, and the system can't carry out normal refrigeration work, adopts fan speed regulator to adjust the rotational speed of condensing fan according to the pressure in the system after the condensation this moment, reaches the effect that improves condensing pressure to assist condensing pressure governing valve and NRD check valve to improve condensing pressure, guarantee refrigerating cycle system's operational reliability and stability under low temperature environment. And a heating and dehumidifying device is added in the air delivery duct of the equipment, so that the indoor temperature is increased, the indoor relative humidity is reduced, and the aim of low-temperature dehumidification is fulfilled.
Therefore, the utility model has the beneficial effects that:
1. The air conditioning equipment is provided with the condensing pressure regulating system and the heating and dehumidifying system, so that the problem that the air conditioning equipment cannot perform refrigeration and dehumidification in a low-temperature environment is solved.
2. The air conditioner can adapt to the change of low-temperature to high-temperature climatic conditions in the refrigeration mode, so that the air conditioner can meet the wide-temperature design under the refrigeration working condition.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, the embodiment discloses a low-temperature environment refrigeration and dehumidification type air conditioning apparatus, which comprises a refrigeration cycle system, a condensation pressure adjusting system, and a heating and dehumidification system of an auxiliary condensation pressure adjusting system, wherein:
The refrigeration cycle system includes a compressor 1, a condenser 5 provided with a condensing fan 4, a receiver 8, a filter 9, a thermal expansion valve 10, an evaporator 11 provided with an evaporating fan 13, and a gas-liquid separator 15. The refrigerant outlet of the compressor 1 is connected with the inlet of the condenser 5 through a pipeline, the outlet of the condenser 5 is connected with the inlet of the liquid storage device 8 through a pipeline, the outlet of the liquid storage device 8 is connected with the inlet of the filter 9 through a pipeline, the outlet of the filter 9 is connected with the inlet of the thermal expansion valve 10 through a pipeline, the outlet of the thermal expansion valve 10 is connected with the inlet of the evaporator 11 through a pipeline, the outlet of the evaporator 11 is connected with the inlet of the gas-liquid separator 15 through a pipeline, and the outlet of the gas-liquid separator 15 is connected with the refrigerant return port of the compressor 1 through a pipeline.
The condensing pressure regulating system comprises a condensing pressure regulating valve 6, a fan speed regulator 7, an NRD check valve 12, a first thermal protector 2-1, a second thermal protector 2-2, a third thermal protector 2-3, a first crank heating belt 3-1, a second crank heating belt 3-2 and a third crank heating belt 3-3. The condensing pressure regulating valve 6 is communicated and connected to a pipeline between the outlet of the condenser 5 and the inlet of the liquid storage device 8. The fan speed regulator 7 is provided with a pressure acquisition end, the pressure acquisition end of the fan speed regulator 7 is arranged on a pipeline between the outlet of the condenser 5 and the inlet of the liquid storage device 8, the pressure of the pipeline between the outlet of the condenser 5 and the inlet of the liquid storage device 8 is acquired by the fan speed regulator 7, and the fan speed regulator 7 is electrically connected with the condensing fan 4 in a control way. The inlet bypass of the NRD check valve 12 is connected with a pipeline of the refrigerant outlet of the compressor 1, and the outlet bypass of the NRD check valve 12 is connected with a pipeline between the outlet of the condenser 5 and the inlet of the liquid reservoir 8. The first thermal protector 2-1 and the first crank heating belt 3-1 are disposed in the compressor 1, the first thermal protector 2-2 and the first crank heating belt 3-2 are disposed in the reservoir 8, and the third thermal protector 2-3 and the third crank heating belt 3-3 are disposed in the gas-liquid separator 15.
The heating and dehumidifying system includes a heating and dehumidifying apparatus provided at an air outlet side of the evaporator 11.
During the cooling operation under the high temperature environment, the low temperature and low pressure refrigerant vapor is compressed into high temperature and high pressure vapor by the compressor 1, the high pressure saturated liquid is condensed into high pressure saturated liquid by the heat released by the outdoor condenser 5 under the action of the condensing fan 4, and then enters the indoor evaporator 11 through the throttling and depressurization of the thermal expansion valve 10, boils in the evaporator, absorbs heat by vaporization, and exchanges heat with indoor hot air under the action of the evaporating fan 13. The cooled air is sucked by the evaporating fan 13 and then blown into the room to complete the ventilation and cooling cycle of the room, so that the indoor temperature is reduced. At the same time, the humidity is also reduced by the drainage of the condensed water. The cycle is repeated to achieve the purpose of reducing indoor temperature and humidity.
During the refrigeration operation under low temperature environment in winter, the refrigerant vapor is compressed into high-temperature high-pressure vapor by the compressor 1, under the action of the condensing fan 4, the heat is released by the outdoor condenser 5, because the outdoor environment temperature is very low, the pressure of the condensed high-pressure saturated liquid is reduced, the refrigerant entering the evaporator 11 through the thermal expansion valve 10 for evaporation is reduced, the system cannot perform normal refrigeration operation, at this time, the condensing fan speed regulator 7 reduces the rotating speed of the condensing fan 4 after comparing the pressure in the condensed system with the set pressure value, the heat exchange amount of the high-temperature high-pressure refrigerant vapor in the condenser 5 and the outside cold air is reduced to improve the condensing pressure, when the condensing fan 4 still cannot improve the condensing pressure under the condition of extremely low rotating speed, the vapor pressure discharged by the compressor 1 is increased when the refrigerant is flushed into the evaporator 11, the NRD one-way valve 12 is opened, and part of the high-temperature high-pressure vapor enters the pipeline behind the condenser 5 through the NRD one-way valve 12 to improve the condensing pressure, so as to ensure the reliability and the stability of the refrigeration cycle system in the low temperature environment. The periphery of the compressor 1, the liquid storage 8 and the gas-liquid separator 15 are respectively added with a thermal protector 2-1, a thermal protector 2-2, a thermal protector 2-3, a crank heating belt 3-1, a crank heating belt 3-2 and a crank heating belt 3-3. Wherein the crank heating belt 3-1, the crank heating belt 3-2 and the crank heating belt 3-3 are used for preventing the starting difficulty caused by solidification of the frozen oil in the compressor 1, the liquid storage device 8 and the gas-liquid separator 15 at low temperature in winter; the heat protector 2-1, the heat protector 2-2 and the heat protector 2-3 are used for preventing the excessive temperature generated by the crank heating belt 3-1, the crank heating belt 3-2 and the crank heating belt 3-3 from increasing the pressure of the refrigerant in the system.
When the temperature and humidity sensor in the equipment detects that the indoor humidity is larger than a set humidity value, the heating and dehumidifying device 14 is started, the low-temperature air fed into the room is heated under the action of the evaporating fan 13, so that the indoor temperature is increased, the indoor relative humidity is reduced, and the dew point temperature is increased to achieve the aim of dehumidifying in the low-temperature environment.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the examples described herein are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. The individual technical features described in the above-described embodiments may be combined in any suitable manner without contradiction, and such combination should also be regarded as the disclosure of the present disclosure as long as it does not deviate from the idea of the present utility model. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
The present utility model is not limited to the specific details of the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope of the present utility model without departing from the scope of the technical concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (6)
1. The refrigerating and dehumidifying air conditioning equipment in low temperature environment comprises a refrigerating circulation system which is composed of a compressor, a condenser provided with a condensing fan, a liquid storage device, a filter, a thermal expansion valve, an evaporator provided with an evaporating fan and a gas-liquid separator, wherein a refrigerant outlet of the compressor in the refrigerating circulation system is connected with an inlet of the condenser through a pipeline, an outlet of the condenser is connected with an inlet of the liquid storage device through a pipeline, an outlet of the liquid storage device is connected with an inlet of the filter through a pipeline, an outlet of the filter is connected with an inlet of the thermal expansion valve through a pipeline, an outlet of the thermal expansion valve is connected with an inlet of the evaporator through a pipeline, an outlet of the evaporator is connected with an inlet of the gas-liquid separator through a pipeline, and an outlet of the gas-liquid separator is connected with a refrigerant return port of the compressor; and the NRD check valve inlet bypass is connected with a pipeline of the compressor refrigerant outlet, and the NRD check valve outlet bypass is connected with a pipeline between the condenser outlet and the liquid storage device inlet.
2. The cryogenic environment refrigeration and dehumidification type air conditioning apparatus of claim 1, wherein the condensing pressure regulating system further comprises a condensing pressure regulating valve, the condensing pressure regulating valve being connected to a pipeline between the condenser outlet and the accumulator inlet.
3. The cryogenic environment refrigeration and dehumidification air conditioning apparatus of claim 1, wherein the condensing pressure regulating system further comprises a first thermal protector and a first crank heating band disposed on the compressor.
4. The cryogenic environment refrigeration and dehumidification air conditioning apparatus of claim 1, wherein the condensing pressure regulating system further comprises a second thermal protector and a second crank heating band disposed in the reservoir.
5. The cryogenic environment refrigeration and dehumidification air conditioning apparatus of claim 1, wherein the condensing pressure regulating system further comprises a third thermal protector and a third crank heating band disposed in the gas-liquid separator.
6. The low-temperature environment refrigeration and dehumidification type air conditioning apparatus as set forth in claim 1, wherein the air outlet side of the evaporation fan is provided with a heating and dehumidification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615506.0U CN220892439U (en) | 2023-09-26 | 2023-09-26 | Low-temperature environment refrigeration dehumidification type air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615506.0U CN220892439U (en) | 2023-09-26 | 2023-09-26 | Low-temperature environment refrigeration dehumidification type air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220892439U true CN220892439U (en) | 2024-05-03 |
Family
ID=90879499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322615506.0U Active CN220892439U (en) | 2023-09-26 | 2023-09-26 | Low-temperature environment refrigeration dehumidification type air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220892439U (en) |
-
2023
- 2023-09-26 CN CN202322615506.0U patent/CN220892439U/en active Active
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