CN109469953B - Wide-temperature refrigerating and dehumidifying device - Google Patents
Wide-temperature refrigerating and dehumidifying device Download PDFInfo
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- CN109469953B CN109469953B CN201811390229.5A CN201811390229A CN109469953B CN 109469953 B CN109469953 B CN 109469953B CN 201811390229 A CN201811390229 A CN 201811390229A CN 109469953 B CN109469953 B CN 109469953B
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- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000005057 refrigeration Methods 0.000 claims abstract description 34
- 238000007791 dehumidification Methods 0.000 claims abstract description 32
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 14
- 239000007791 liquid phase Substances 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a wide-temperature refrigeration dehumidification device, which comprises a refrigeration system composed of a compressor, a condenser, a liquid storage device, an electrically controllable three-way valve A, an expansion valve, an evaporator, an electrically controllable three-way valve B and a gas-liquid separator, wherein the air inlet of the compressor is communicated with the air inlet of the condenser; the system also comprises a dehumidifying system consisting of an electromagnetic valve, a condenser for dehumidification, a liquid storage device, a three-way valve A, an expansion valve, an evaporator, a three-way valve B and a gas-liquid separator, a heat pipe heat exchange system consisting of the evaporator, the three-way valve B, the condenser, the liquid storage device and the three-way valve A, and a ventilation system consisting of an axial flow fan and a centrifugal fan. The invention has the advantages of simple structure, high efficiency, convenient installation, low failure rate, high reliability and convenient maintenance, can efficiently realize the temperature and humidity adjustment of air, can effectively protect a refrigerating system and saves energy.
Description
Technical Field
The invention relates to the field of air conditioning systems, in particular to a wide-temperature refrigeration dehumidifying device.
Background
Because the heating value of the electronic equipment in the special cabin is large, if no cooling is adopted in winter, the internal temperature of the equipment can rise and exceed the temperature limit born by the electronic equipment, so the air conditioning system must have the refrigerating capacity in winter. The existing refrigerating unit still adopts vapor compression refrigeration to cool down under the low temperature condition, and for the general vapor compression refrigerating unit, the normal operation of the unit has a certain temperature range, if the external environment temperature is lower, and when the indoor environment temperature is higher, the normal compression ratio (generally 3-7) cannot be maintained, at the moment, insufficient liquid supply of the evaporator and sometimes even refrigerant backflow occur, so that the air conditioning equipment cannot normally work.
In order to achieve the function, a condensing pressure adjusting device and an axial flow fan are generally adopted for adjusting the rotating speed of the axial flow fan to serve as a refrigerating mode of the whole refrigerating system in a low-temperature environment, and the mode has the defects of complex adjustment, high refrigerating cost, high power consumption, frequent start and stop of a compressor, reduced service life of the system, reduced reliability and the like. In addition, the condensing pressure adjusting device enables the refrigerating system to be kept in a normal compression ratio range by adjusting the condensing pressure of the refrigerating system, but when the ambient temperature is further reduced, the refrigerating system cannot be kept in the normal compression ratio range by adjusting the condensing pressure and the rotating speed of the axial flow fan, the air conditioning equipment cannot work, and the normal cooling requirement cannot be met.
Meanwhile, as the matched refrigerating unit for the special industry mainly carries out air conditioning on electronic equipment, when the climate condition is relatively humid, the moisture in the air is more, the insulating performance and the like of the electronic equipment are affected, and therefore, the air needs to be dehumidified. Generally, refrigeration and electric heating are combined for dehumidification, and the dehumidification causes increased power consumption due to the increased electric heating, which is uneconomical.
The invention aims to provide a wide-temperature refrigeration and dehumidification device, which is used for solving the problems of poor high-temperature and low-temperature refrigeration and dehumidification capability and poor reliability of an air conditioner in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
wide temperature refrigeration dehydrating unit, its characterized in that: the system comprises a compressor, a condenser, a liquid storage device, an electrically controllable three-way valve A, an expansion valve, an evaporator, an electrically controllable three-way valve B and a gas-liquid separator, wherein a refrigerant outlet of the compressor is connected with one end of the condenser through a pipeline, the other end 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 one valve port of the three-way valve A through a pipeline, the other valve port of the three-way valve A is connected with one inlet of the expansion valve through a pipeline, an outlet of the expansion valve is connected with one end of the evaporator through a pipeline, the other end of the evaporator is connected with one valve port of the three-way valve B through a pipeline, the other valve port of the three-way valve B is connected with an inlet of the gas-liquid separator through a pipeline, and a liquid phase outlet of the gas-liquid separator is connected with a refrigerant inlet of the compressor, so that a refrigerating system is formed;
the system also comprises an electromagnetic valve and a condenser for dehumidification, wherein one valve port of the electromagnetic valve is communicated with a pipeline between a refrigerant outlet of the compressor and the condenser through a pipeline bypass, the other valve port of the electromagnetic valve is connected with one end of the condenser for dehumidification through a pipeline, the other end of the condenser for dehumidification is communicated with a pipeline between an inlet of the liquid storage device and the condenser through a pipeline bypass, and a dehumidification system is formed by the electromagnetic valve, the condenser for dehumidification, the liquid storage device, the three-way valve A, the expansion valve, the evaporator, the three-way valve B and the gas-liquid separator;
the third valve port of the three-way valve B is bypassed to a pipeline between a refrigerant outlet of the compressor and the condenser through a pipeline, the third valve port of the three-way valve A is bypassed to a pipeline between the expansion valve and the evaporator through a pipeline, and the evaporator, the three-way valve B, the condenser, the liquid storage device and the three-way valve A form a heat pipe heat exchange system;
meanwhile, the condenser is provided with an axial flow fan, the dehumidifying condenser is provided with a centrifugal fan, and a ventilation system is formed by the axial flow fan and the centrifugal fan.
The wide temperature refrigeration dehydrating unit, its characterized in that: the evaporator and the dehumidifying condenser share a centrifugal fan.
The wide temperature refrigeration dehydrating unit, its characterized in that: the refrigerating system, the dehumidifying system and the heat pipe heat exchange system share the condenser and the evaporator.
The wide temperature refrigeration dehydrating unit, its characterized in that: the refrigerating system and the heat pipe heat exchange system are switched through the three-way valve A and the three-way valve B.
The wide temperature refrigeration dehydrating unit, its characterized in that: the dehumidification system is connected to the refrigeration system or the heat pipe heat exchange system for dehumidification through an electromagnetic valve.
The wide temperature refrigeration dehydrating unit, its characterized in that: the air conditioner further comprises an electric control system, the electric control system comprises a power supply, a control unit, a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor are arranged at the air return position, the temperature sensor is arranged at the condensing air inlet position, the power supply is connected with the power end of the control unit, the temperature sensor and the humidity sensor are respectively connected with the signal input end of the control unit, and the signal output end of the control unit is respectively connected with the centrifugal fan, the axial flow fan, the electromagnetic valve, the three-way valve A, the three-way valve B and the compressor.
The invention has the beneficial effects that:
1) And the heat pipe heat exchange refrigeration at a lower temperature and the vapor compression refrigeration at a higher temperature are realized.
2) And refrigeration and dehumidification (under the condition of heat pipe heat exchange refrigeration or vapor compression refrigeration) are realized. The dehumidification capability of the air conditioner under the low-temperature high-humidity condition is improved.
3) The relative humidity and the temperature of the air supply of the air conditioner are controlled, so that the change of the air supply state of the air conditioner is prevented, and the temperature and humidity fluctuation of the small environment in the cabin is caused.
4) The condenser and the evaporator in the heat pipe heat exchange refrigeration and the vapor compression refrigeration can be realized only through the switching of the three-way valve. Simple structure, efficient, simple to operate, the fault rate is low, and the reliability is high, easy maintenance can high-efficiently realize air conditioning, can effectively protect refrigerating system, has practiced thrift the energy.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, the wide-temperature refrigeration and dehumidification device comprises a compressor 1, a condenser 2, a liquid storage device 3, an electrically controllable three-way valve A4, an expansion valve 5, an evaporator 6, an electrically controllable three-way valve B7 and a gas-liquid separator 8, wherein a refrigerant outlet of the compressor 1 is connected with one end of the condenser 2 through a pipeline, the other end of the condenser 2 is connected with an inlet of the liquid storage device 3 through a pipeline, an outlet of the liquid storage device 3 is connected with one valve port of the three-way valve A4 through a pipeline, the other valve port of the three-way valve A4 is connected with one inlet of the expansion valve 5 through a pipeline, an outlet of the expansion valve 5 is connected with one end of the evaporator 6 through a pipeline, the other end of the evaporator 6 is connected with one valve port of the three-way valve B7 through a pipeline, the other valve port of the three-way valve B7 is connected with an inlet of the gas-liquid separator 8, and a liquid phase outlet of the gas-liquid separator 8 is connected with a refrigerant inlet of the compressor 1, so that a refrigeration system is formed;
the system also comprises an electromagnetic valve 9 and a dehumidifying condenser 10, wherein one valve port of the electromagnetic valve 9 is communicated to a pipeline between a refrigerant outlet of the compressor 1 and the condenser 2 through a pipeline bypass, the other valve port of the electromagnetic valve 9 is connected with one end of the dehumidifying condenser 10 through a pipeline, the other end of the dehumidifying condenser 10 is communicated to a pipeline between an inlet of the liquid storage device 3 and the condenser 2 through a pipeline bypass, and a dehumidifying system is formed by the electromagnetic valve 9, the dehumidifying condenser 10, the liquid storage device 3, a three-way valve A4, an expansion valve 5, an evaporator 6, a three-way valve B7 and a gas-liquid separator 8;
the third valve port of the three-way valve B7 is communicated to a pipeline between the refrigerant outlet of the compressor 1 and the condenser 2 through a pipeline bypass, the third valve port of the three-way valve A4 is communicated to a pipeline between the expansion valve 5 and the evaporator 6 through a pipeline bypass, and a heat pipe heat exchange system is formed by the evaporator 6, the three-way valve B7, the condenser 2, the liquid storage device 3 and the three-way valve A4;
meanwhile, the condenser 2 is provided with an axial flow fan 11, the dehumidifying condenser 10 is provided with a centrifugal fan 12, and a ventilation system is constituted by the axial flow fan 11 and the centrifugal fan 12.
The evaporator 6 and the dehumidifying condenser 10 share a centrifugal fan.
The refrigeration system, the dehumidification system and the heat pipe heat exchange system share the condenser 2 and the evaporator 6.
The refrigerating system and the heat pipe heat exchange system are switched through a three-way valve A4 and a three-way valve B7.
The dehumidification system is connected to a refrigeration system or a heat pipe heat exchange system for dehumidification through an electromagnetic valve 9.
The air conditioner further comprises an electric control system, the electric control system comprises a power supply 13, a control unit 14, a temperature sensor 15 and a humidity sensor 16 which are arranged at the air return position, and a temperature sensor 17 which is arranged at the condensing air inlet position, wherein the temperature sensors 15 and 17 and the humidity sensor 16 are respectively connected with the signal input end of the control unit 14, and the power supply 13 is respectively connected with the centrifugal fan 12, the axial flow fan 11, the electromagnetic valve 9, the three-way valve A4, the three-way valve B7 and the power supply end of the compressor 1 through the control unit 14.
In the invention, temperature sensors 15 and 17 monitor the temperature and the ambient temperature of indoor return air of air conditioning equipment in real time and feed back the temperature and the ambient temperature to a control unit 13, the control unit 13 automatically compares the return air temperature and the ambient temperature with the set temperature, and when the ambient temperature is lower and the return air temperature is higher than the set temperature, a heat pipe heat exchange system is adopted for refrigeration, and at the moment, an axial flow fan 11 and a centrifugal fan 12 simultaneously operate, and the heat pipe heat exchange system starts to work; when the ambient temperature is lower and the return air temperature reaches the set temperature, the axial flow fan 11 stops working, the heat pipe heat exchange system stops working, and the indoor fan continues working and ventilating; when the ambient temperature is higher and the return air temperature is higher than the set temperature, the compressor 1, the axial flow fan 11 and the centrifugal fan 12 are operated simultaneously, and the refrigerating system starts to work; when the ambient temperature is higher and the return air temperature reaches the set temperature, the compressor 1 and the axial flow fan 11 stop working, the refrigerating system stops working, and the indoor fan continues working and ventilating.
When the relative humidity of the indoor return air of the air conditioning equipment is monitored in real time by the humidity sensor 16, the electromagnetic valve 9 is opened (when the ambient temperature is high, the compressor 1, the axial flow fan 11 and the centrifugal fan 12 are operated simultaneously, the refrigerating system is operated, when the ambient temperature is low, the axial flow fan 11 and the centrifugal fan 12 are operated simultaneously, the heat pipe heat exchange system is operated) to introduce a part of high-temperature refrigerant gas into the dehumidifying condenser 10, moist hot air flows through the low-temperature evaporator 6, water vapor in the air is condensed on the surface of the evaporator 6 and is discharged, the moisture content in the air is reduced, and when the temperature is increased after the temperature is reheated by the dehumidifying condenser 10, the relative humidity of the air is reduced, so that the aim of dehumidification is achieved.
The control unit 14 determines to control the operation states of the compressor 1, the three-way valve A4, the three-way valve B7, the solenoid valve 9, the axial flow fan 11, and the centrifugal fan 12 based on the set temperature and the input state signal.
Claims (5)
1. Wide temperature refrigeration dehydrating unit, its characterized in that: the system comprises a compressor, a condenser, a liquid storage device, an electrically controllable three-way valve A, an expansion valve, an evaporator, an electrically controllable three-way valve B and a gas-liquid separator, wherein a refrigerant outlet of the compressor is connected with one end of the condenser through a pipeline, the other end 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 one valve port of the three-way valve A through a pipeline, the other valve port of the three-way valve A is connected with one inlet of the expansion valve through a pipeline, an outlet of the expansion valve is connected with one end of the evaporator through a pipeline, the other end of the evaporator is connected with one valve port of the three-way valve B through a pipeline, the other valve port of the three-way valve B is connected with an inlet of the gas-liquid separator through a pipeline, and a liquid phase outlet of the gas-liquid separator is connected with a refrigerant inlet of the compressor, so that a refrigerating system is formed; the system also comprises an electromagnetic valve and a condenser for dehumidification, wherein one valve port of the electromagnetic valve is communicated with a pipeline between a refrigerant outlet of the compressor and the condenser through a pipeline bypass, the other valve port of the electromagnetic valve is connected with one end of the condenser for dehumidification through a pipeline, the other end of the condenser for dehumidification is communicated with a pipeline between an inlet of the liquid storage device and the condenser through a pipeline bypass, and a dehumidification system is formed by the electromagnetic valve, the condenser for dehumidification, the liquid storage device, the three-way valve A, the expansion valve, the evaporator, the three-way valve B and the gas-liquid separator; the third valve port of the three-way valve B is bypassed to a pipeline between a refrigerant outlet of the compressor and the condenser through a pipeline, the third valve port of the three-way valve A is bypassed to a pipeline between the expansion valve and the evaporator through a pipeline, and the evaporator, the three-way valve B, the condenser, the liquid storage device and the three-way valve A form a heat pipe heat exchange system; meanwhile, the condenser is provided with an axial flow fan, the dehumidifying condenser is provided with a centrifugal fan, and a ventilation system is formed by the axial flow fan and the centrifugal fan;
the wide-temperature refrigeration dehumidification device also comprises an electric control system, wherein the electric control system comprises a power supply, a control unit, a temperature sensor and a humidity sensor which are arranged at a return air position, and a temperature sensor which is arranged at a condensation air inlet position, wherein the temperature sensor and the humidity sensor are respectively connected with a signal input end of the control unit, and the power supply is respectively connected with a centrifugal fan, an axial flow fan, an electromagnetic valve, a three-way valve A, a three-way valve B and a power supply end of a compressor through the control unit;
when the ambient temperature is lower and the return air temperature is higher than the set temperature, a heat pipe heat exchange system is adopted for refrigeration, at the moment, an axial flow fan and a centrifugal fan simultaneously operate, and the heat pipe heat exchange system starts to work;
when the ambient temperature is lower and the return air temperature reaches the set temperature, the axial flow fan stops working, the heat pipe heat exchange system stops working, and the indoor fan continues working and ventilating;
when the environment temperature is higher and the return air temperature is higher than the set temperature, the compressor, the axial flow fan and the centrifugal fan are operated simultaneously, and the refrigerating system starts to work;
when the ambient temperature is higher and the return air temperature reaches the set temperature, the compressor and the axial flow fan stop working, the refrigerating system stops working, and the indoor fan continues working and ventilating.
2. The wide temperature range refrigeration and dehumidification device as set forth in claim 1, wherein: the evaporator and the dehumidifying condenser share a centrifugal fan.
3. The wide temperature range refrigeration and dehumidification device as set forth in claim 1, wherein: the refrigerating system, the dehumidifying system and the heat pipe heat exchange system share the condenser and the evaporator.
4. The wide temperature range refrigeration and dehumidification device as set forth in claim 1, wherein: the refrigerating system and the heat pipe heat exchange system are switched through the three-way valve A and the three-way valve B.
5. The wide temperature range refrigeration and dehumidification device as set forth in claim 1, wherein: the dehumidification system is connected to the refrigeration system or the heat pipe heat exchange system for dehumidification through an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390229.5A CN109469953B (en) | 2018-11-21 | 2018-11-21 | Wide-temperature refrigerating and dehumidifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390229.5A CN109469953B (en) | 2018-11-21 | 2018-11-21 | Wide-temperature refrigerating and dehumidifying device |
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| Publication Number | Publication Date |
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| CN109469953A CN109469953A (en) | 2019-03-15 |
| CN109469953B true CN109469953B (en) | 2023-11-24 |
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| CN201811390229.5A Active CN109469953B (en) | 2018-11-21 | 2018-11-21 | Wide-temperature refrigerating and dehumidifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112848844B (en) * | 2021-03-10 | 2024-05-14 | 合肥天鹅制冷科技有限公司 | Vehicle environmental control system |
| CN113124580A (en) * | 2021-05-17 | 2021-07-16 | 合肥天鹅制冷科技有限公司 | Anti-condensation air conditioning device |
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| CN105444261A (en) * | 2014-08-20 | 2016-03-30 | 广东申菱环境***股份有限公司 | Combined type energy-saving dehumidifier and operation method thereof |
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- 2018-11-21 CN CN201811390229.5A patent/CN109469953B/en active Active
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