CN214065120U - Air treatment refrigerating system with strong working condition adaptability - Google Patents
Air treatment refrigerating system with strong working condition adaptability Download PDFInfo
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- CN214065120U CN214065120U CN202022503998.0U CN202022503998U CN214065120U CN 214065120 U CN214065120 U CN 214065120U CN 202022503998 U CN202022503998 U CN 202022503998U CN 214065120 U CN214065120 U CN 214065120U
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Abstract
The utility model discloses an air treatment refrigerating system with strong adaptability to variable working conditions, which comprises a surface heat exchanger, a control system and a fan speed regulator, wherein one side of the surface heat exchanger is provided with a surface heater, the output end of the surface heat exchanger is provided with an electronic expansion valve A, the other end of the electronic expansion valve A is provided with a heat regenerator, one end of the heat regenerator is provided with a drying filter, one end of the drying filter is provided with a high-pressure liquid accumulator, and one end of the high-pressure liquid accumulator is provided with an electronic expansion valve B; the utility model discloses an electronic refrigerant governing valve, outdoor heat exchanger, capillary, regenerator, vapour and liquid separator and the mutually supporting of temperature and pressure integrative sensor A can cool down the dehumidification earlier to the air, then reheat to the air to keep the air supply humiture of requirement, under this kind of condition, can adopt the condensation heat of part refrigeration process refrigerant to come reheat air, in order to realize the energy-conservation that the condensation heat utilization brought.
Description
Technical Field
The utility model relates to a civilian, industry and agricultural technical field specifically are a change air treatment refrigerating system that operating mode strong adaptability.
Background
At present, a refrigeration system adopting a refrigerant (refrigerant) to directly evaporate and cool or directly condense and heat to process air has incomplete air processing function and weak working condition-variable adaptability. For example, a common equipment system can only dehumidify and cool air or heat air, and various requirements for air treatment are difficult to realize under the condition of annual operation condition change;
the existing air treatment refrigerating system still has the obvious problems that: 1. most of the existing air treatment refrigeration systems cannot realize the functions of firstly cooling and dehumidifying air and then reheating the air so as to keep the required air supply temperature and humidity, and under the condition, the air can be reheated by using the condensation heat of a part of refrigeration process refrigerants so as to realize the energy saving brought by the utilization of the condensation heat; or even the system with the function has the problems that the condensing pressure is unstable, the reheating quantity is poor in adjustability, the accurate control of the air supply temperature is difficult, and the like; 2. the variable working condition load of the refrigeration compressors adopted by most of the existing air treatment refrigeration systems has poor energy regulation capability and higher energy consumption, which are the incomplete manifestations of the energy-saving measures of the refrigeration systems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides an air treatment refrigerating system with strong adaptability to variable working conditions, which solves the problems that 1, most of the existing air treatment refrigerating systems can not realize the purposes of firstly cooling and dehumidifying air and then reheating the air so as to keep the required air supply temperature and humidity, and under the condition, the condensing heat of a part of refrigerating process refrigerants can be adopted to reheat the air so as to realize the energy-saving function brought by the utilization of the condensing heat; or even the system with the function has the problems that the condensing pressure is unstable, the reheating quantity is poor in adjustability, the accurate control of the air supply temperature is difficult, and the like; 2. the variable working condition load of the refrigeration compressors adopted by most of the existing air treatment refrigeration systems has poor energy regulation capability and high energy consumption, which are the problems of incomplete energy-saving measures of the refrigeration systems.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an air treatment refrigerating system with strong working condition changing adaptability comprises a surface type heat exchanger, a control system and a fan speed regulator, wherein one side of the surface type heat exchanger is provided with a surface type heater, the output end of the surface type heat exchanger is provided with an electronic expansion valve A, the other end of the electronic expansion valve A is provided with a heat regenerator, one end of the heat regenerator is provided with a drying filter, one end of the drying filter is provided with a high-pressure liquid storage device, one end of the high-pressure liquid storage device is provided with an electronic expansion valve B, one end of the electronic expansion valve B, far away from the high-pressure liquid storage device, is provided with an outdoor heat exchanger, one end of the high-pressure liquid storage device, far away from the electronic expansion valve B, is communicated with the surface type heater, one end of the outdoor heat exchanger is provided with a back pressure valve, the back pressure valve is communicated with the surface type heater, and one end of the outdoor heat exchanger, far away from the back pressure valve, is provided with a four-way reversing valve, one end of the four-way reversing valve is communicated with the heat regenerator, one end of the four-way reversing valve, which is far away from the outdoor heat exchanger, is provided with an oil separator, one end of the oil separator, which is far away from the four-way reversing valve, is communicated with two groups of variable frequency compressors, and a pipeline communicated with the oil separator and the variable frequency compressors is respectively provided with a high-pressure switch and a temperature and pressure integrated sensor B;
the one end of frequency conversion compressor is provided with vapour and liquid separator, vapour and liquid separator and the mutual intermediate position department that communicates of frequency conversion compressor are provided with temperature and pressure integrative sensor A, the one end that frequency conversion compressor was kept away from to vapour and liquid separator communicates each other with the regenerator, the one end that frequency conversion compressor was kept away from to the oil separator is provided with the capillary, and capillary and frequency conversion compressor and vapour and liquid separator communicate each other, the fan speed regulator is located one side of outdoor heat exchanger, the one end of fan speed regulator is provided with variable speed fan.
Preferably, a liquid viewing mirror is arranged at the middle position where the dry filter and the heat regenerator are connected with each other, and the liquid viewing mirror is communicated with the heat regenerator and the dry filter.
Preferably, the input and output ends of the surface type heat exchanger and the surface type heater are both provided with stop valves.
Preferably, both sides of the surface type heat exchanger and the surface type heater are provided with a dry bulb temperature sensor and a wet bulb temperature sensor.
Preferably, the regenerator uses R, Ra, R and other refrigerants.
Preferably, a check valve is arranged at the middle position of the connecting pipeline of the variable frequency compressor and the oil separator.
Preferably, two groups of filters are uniformly arranged on the pipeline at the output end of the surface type heat exchanger.
Preferably, four groups of connecting holes are uniformly formed in the four-way reversing valve, and the four groups of connecting holes are respectively communicated with the surface heat exchanger, the oil separator, the heat regenerator and the outdoor heat exchanger.
(III) advantageous effects
The utility model provides a become air treatment refrigerating system of operating mode strong adaptability. The method has the following beneficial effects:
the air treatment refrigerating system with strong working condition changing adaptability;
1. through the mutual matching of the electric refrigerant regulating valve, the outdoor heat exchanger, the capillary tube, the heat regenerator, the gas-liquid separator and the temperature-pressure integrated sensor A, the air can be cooled and dehumidified firstly, and then reheated to keep the required air supply temperature and humidity, and under the condition, the air can be reheated by the condensation heat of part of the refrigerant in the refrigeration process to realize the energy saving brought by the utilization of the condensation heat;
2. the frequency conversion compressor, the fan speed regulator, the variable speed fan and the control system are matched with each other, the coefficient of performance of the system can be improved, further energy conservation is realized, the refrigerant can adopt regenerative cycle, and the refrigeration compressor also has strong variable working condition load regulation capacity so as to reduce energy consumption.
Drawings
Fig. 1 is a working principle diagram of the present invention.
In the figure: 1. a surface heat exchanger; 2. a surface heater; 3. an electric refrigerant regulating valve; 4. an electronic expansion valve A; 5. a gas-liquid separator; 6. a temperature and pressure integrated sensor A; 7. a capillary tube; 8. a variable frequency compressor; 9. a high voltage switch; 10. a temperature and pressure integrated sensor B; 11. an oil separator; 12. a four-way reversing valve; 13. a control system; 14. a fan speed regulator; 15. a variable speed fan; 16. an outdoor heat exchanger; 17. a back pressure valve; 18. an electronic expansion valve B; 19. a temperature and pressure integrated sensor C; 20. a high pressure reservoir; 21. drying the filter; 22. a liquid viewing mirror; 23. a regenerator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-1, an embodiment of the present invention provides a technical solution: an air processing refrigeration system with strong adaptability to variable working conditions comprises a surface heat exchanger 1, a control system 13 and a fan speed regulator 14, wherein one side of the surface heat exchanger 1 is provided with a surface heater 2, the output end of the surface heat exchanger 1 is provided with an electronic expansion valve A4, the other end of the electronic expansion valve A4 is provided with a heat regenerator 23, one end of the heat regenerator 23 is provided with a drying filter 21, one end of the drying filter 21 is provided with a high-pressure liquid reservoir 20, one end of the high-pressure liquid reservoir 20 is provided with an electronic expansion valve B18, one end of the electronic expansion valve B18, which is far away from the high-pressure liquid reservoir 20, is provided with an outdoor heat exchanger 16, one end of the high-pressure liquid reservoir 20, which is far away from the electronic expansion valve B18, is communicated with the surface heater 2, one end of the outdoor heat exchanger 16 is provided with a back pressure valve 17, the back pressure valve 17 is communicated with the surface heater 2, one end of the outdoor heat exchanger 16, which is far away from the back pressure valve 17, is provided with a four-way reversing valve 12, one end of the four-way reversing valve 12 is communicated with the heat regenerator 23, one end of the four-way reversing valve 12, which is far away from the outdoor heat exchanger 16, is provided with an oil separator 11, one end of the oil separator 11, which is far away from the four-way reversing valve 12, is communicated with two groups of variable frequency compressors 8, and a high-pressure switch 9 and a temperature and pressure integrated sensor B10 are respectively arranged on pipelines communicated with the oil separator 11 and the variable frequency compressors 8;
one end of the variable frequency compressor 8 is provided with a gas-liquid separator 5, a temperature and pressure integrated sensor A6 is arranged at the middle position where the gas-liquid separator 5 and the variable frequency compressor 8 are communicated with each other, one end of the gas-liquid separator 5 far away from the variable frequency compressor 8 is communicated with the heat regenerator 23, one end of the oil separator 11 far away from the variable frequency compressor 8 is provided with a capillary tube 7, the capillary tube 7 is communicated with the variable-frequency compressor 8 and the gas-liquid separator 5, the fan speed regulator 14 is positioned on one side of the outdoor heat exchanger 16, the variable-speed fan 15 is arranged at one end of the fan speed regulator 14, and the control system 13 is respectively and electrically connected with the electric refrigerant regulating valve 3, the electronic expansion valve A4, the temperature and pressure integrated sensor A6, the variable-frequency compressor 8, the high-pressure switch 9, the temperature and pressure integrated sensor B10, the four-way reversing valve 12, the fan speed regulator 14, the variable-speed fan 15, the electronic expansion valve B18 and the temperature and pressure integrated sensor C19 through electric signals.
Further, a liquid viewing mirror 22 is disposed at an intermediate position where the dry filter 21 and the regenerator 23 are connected to each other, and the liquid viewing mirror 22 is communicated with the regenerator 23 and the dry filter 21.
Further, the input and output ends of the surface type heat exchanger 1 and the surface type heater 2 are both provided with stop valves.
Further, both sides of the surface type heat exchanger 1 and the surface type heater 2 are provided with a dry bulb temperature sensor and a wet bulb temperature sensor.
Further, the regenerator 23 uses refrigerants such as R502, R290, R600a, R134a, R22, and the like.
Furthermore, check valves are arranged at the middle positions of the connecting pipelines of the inverter compressor 8 and the oil separator 11.
Furthermore, two groups of filters are uniformly arranged on the pipeline at the output end of the surface type heat exchanger 1.
Further, four groups of connecting holes are uniformly formed in the four-way reversing valve 12, and the four groups of connecting holes are respectively communicated with the surface heat exchanger 1, the oil separator 11, the heat regenerator 23 and the outdoor heat exchanger 16.
Example 1: the first operation mode is as follows: a cooling and dehumidifying mode;
the air treatment process comprises the following steps: opening the surface type heat exchanger 1 to cool and dehumidify the air, and closing the surface type heater 2;
a refrigerant flow path: firstly, gas-liquid separation of refrigerant is realized through a gas-liquid separator 5, then the refrigerant is transmitted to a variable-frequency compressor 8 to be compressed and discharged high-temperature and high-pressure refrigerant gas, the refrigeration cycle is pushed to be performed, then the refrigerant gas is transmitted to an oil separator 11 to be separated out lubricating oil carried in the compressor exhaust gas, then the refrigerant gas is transmitted to a four-way reversing valve 12 to change the flow channel of the refrigerant, then the refrigerant gas is transmitted to an outdoor heat exchanger 16 to realize the condensation function of the refrigerant, then the refrigerant gas is transmitted to an electronic expansion valve B18 to adjust the flow rate of the refrigerant so as to adjust the heat absorption capacity and the system refrigeration capacity, then the refrigerant gas is transmitted to a high-pressure liquid storage device 20 to store the condensate of the refrigerant, then the refrigerant gas is transmitted to a drying filter 21 to remove moisture in the refrigerant, then the state of the refrigerant is observed through a liquid observation mirror 22, and then the refrigerant gas is transmitted to a heat regenerator 23 to supercool the high-pressure refrigerant liquid before throttling so as to avoid vaporization before throttling and improve the suction temperature of the compressor, the refrigerant is transmitted to an electronic expansion valve A4 to adjust the flow of the refrigerant so as to adjust the refrigerating capacity, then is transmitted to a surface heat exchanger 1, the refrigerant is condensed to release heat to heat air, then is transmitted to a four-way reversing valve 12, is transmitted to a heat regenerator 23 through the four-way reversing valve 12 to enable high-pressure refrigerant liquid obtained before throttling to be supercooled, and then is transmitted to a gas-liquid separator 5 to enable gas-liquid separation of the refrigerant, circulation is completed, at the moment, an electric refrigerant adjusting valve 3 is closed, and the surface heater 2 does not work;
and (3) circulation of lubricating oil: firstly, a low-temperature low-pressure refrigerant gas is sucked by the variable-frequency compressor 8, then the refrigerant gas is transmitted to the oil separator 11 to separate lubricating oil carried in the compressor exhaust, then the lubricating oil is transmitted to the filter to be filtered, then the lubricating oil is transmitted to the capillary tube 7 to throttle and reduce the pressure of the high-pressure lubricating oil separated from the oil separator 11, and then the lubricating oil is transmitted to the variable-frequency compressor 8;
example 2: and a second operation mode: a cooling only mode;
at this time, the air treatment process, the refrigerant flow and the lubricating oil circulation are the same as the operation mode, and the evaporation temperature of the surface heat exchanger 1 is only required to be controlled to be higher than the dew point temperature of the inlet air
Example 3: and a third operation mode: a cooling, dehumidifying and reheating mode;
the air treatment process comprises the following steps: the surface type heat exchanger 1 is started to cool and dehumidify the air, and the surface type heater 2 is started to reheat the air;
a refrigerant flow path: the method is divided into two paths, wherein one path is a refrigeration main loop: firstly, gas-liquid separation of refrigerant is realized through a gas-liquid separator 5, then the refrigerant is transmitted to a variable-frequency compressor 8 to be compressed and discharged high-temperature and high-pressure refrigerant gas, the refrigeration cycle is pushed to be performed, then the refrigerant gas is transmitted to an oil separator 11 to be separated out lubricating oil carried in the compressor exhaust gas, then the refrigerant gas is transmitted to a four-way reversing valve 12 to change the flow channel of the refrigerant, then the refrigerant gas is transmitted to an outdoor heat exchanger 16 to realize the condensation function of the refrigerant, then the refrigerant gas is transmitted to an electronic expansion valve B18 to adjust the flow rate of the refrigerant so as to adjust the heat absorption capacity and the system refrigeration capacity, then the refrigerant gas is transmitted to a high-pressure liquid storage device 20 to store the condensate of the refrigerant, then the refrigerant gas is transmitted to a drying filter 21 to remove moisture in the refrigerant and filter impurities in the refrigerant, then the state of the refrigerant is observed through a liquid sight glass 22, and then the refrigerant gas is transmitted to a heat regenerator 23 to enable the high-pressure refrigerant liquid before throttling to be supercooled, the refrigerant is transmitted to an electronic expansion valve A4 to adjust the flow of the refrigerant so as to adjust the refrigerating capacity, then transmitted to a surface type heat exchanger 1 to be condensed and release heat to heat air, then transmitted to a four-way reversing valve 12, transmitted to a heat regenerator 23 through the four-way reversing valve 12 to enable high-pressure refrigerant liquid obtained before throttling to be supercooled, and then transmitted to a gas-liquid separator 5 to enable gas-liquid separation of the refrigerant to complete circulation, and the other path is a heating auxiliary loop: firstly, gas-liquid separation of refrigerant is realized through a gas-liquid separator 5, then the refrigerant is transmitted to a variable-frequency compressor 8 to compress and discharge high-temperature and high-pressure refrigerant gas, the refrigeration cycle is pushed to be carried out, then the refrigerant gas is transmitted to an oil separator 11 to separate lubricating oil carried in the compressor exhaust, then the refrigerant gas is transmitted to a four-way reversing valve 12 to change the flow channel of the refrigerant, then the refrigerant gas is transmitted to a back pressure valve 17 to adjust the opening degree of the back pressure valve 17, the basic stability of the pressure before the valve is maintained, then the refrigerant gas is transmitted to an electric refrigerant adjusting valve 3, the difference is only between the measured temperature of an air outlet temperature sensor of a surface heater 2 and a set value, then the refrigerant gas is transmitted to a surface heater 2 to heat flowing air, then the refrigerant gas is transmitted to a high-pressure liquid storage device 20 to store condensate of the refrigerant, then the refrigerant gas is transmitted to a drying filter 21 to remove moisture in the refrigerant and filter impurities in the refrigerant, and then the state of the refrigerant is observed through a liquid viewing mirror 22, then the refrigerant is transmitted to a heat regenerator 23 to supercool the high-pressure refrigerant liquid before throttling so as to avoid vaporization before throttling, simultaneously the air suction temperature of the compressor is increased so as to relieve harmful overheating and improve the working condition of the compressor, then the refrigerant is transmitted to an electronic expansion valve A4 to adjust the flow of the refrigerant so as to adjust the refrigerating capacity, then the refrigerant is transmitted to a surface type heat exchanger 1 to condense and release heat to heat air, then the refrigerant is transmitted to a four-way reversing valve 12, the refrigerant is transmitted to the heat regenerator 23 through the four-way reversing valve 12 so as to supercool the high-pressure refrigerant liquid before throttling, and then the refrigerant is transmitted to a gas-liquid separator 5 so as to separate gas and liquid of the refrigerant, at the moment, the heating capacity of a surface type heater 2 is adjusted through an electric refrigerant adjusting valve 3 so as to ensure that the outlet air temperature meets the requirement, and the accurate control of the outlet air temperature is realized;
and (3) circulation of lubricating oil: firstly, a low-temperature low-pressure refrigerant gas is sucked by the variable-frequency compressor 8, then the refrigerant gas is transmitted to the oil separator 11 to separate lubricating oil carried in the compressor exhaust, then the lubricating oil is transmitted to the filter to be filtered, then the lubricating oil is transmitted to the capillary tube 7 to throttle and reduce the pressure of the high-pressure lubricating oil separated from the oil separator 11, and then the lubricating oil is transmitted to the variable-frequency compressor 8;
example 4: and the operation mode is four: a heating mode;
the air treatment process comprises the following steps: the surface type heat exchanger 1 is opened to heat the air, and the surface type heater 2 is closed;
a refrigerant flow path: firstly, gas-liquid separation of refrigerant is realized through a gas-liquid separator 5, then the refrigerant is transmitted to a variable-frequency compressor 8 to be compressed and discharged high-temperature and high-pressure refrigerant gas, the refrigeration cycle is pushed to be carried out, then the refrigerant is transmitted to an oil separator 11 to be separated out lubricating oil carried in the compressor exhaust gas, then the refrigerant is transmitted to a four-way reversing valve 12 to change the flow channel of the refrigerant, then the refrigerant is transmitted to a surface heat exchanger 1 to be condensed and release heat to heat air, then the refrigerant is transmitted to an electronic expansion valve A4 to adjust the flow of the refrigerant so as to adjust the refrigerating capacity, then the refrigerant is transmitted to a heat regenerator 23 to enable the high-pressure refrigerant liquid before throttling to be supercooled and then transmitted to be observed through a liquid observation mirror 22 to observe the state of the refrigerant, then the refrigerant is transmitted to a drying filter 21 to remove moisture in the refrigerant and filter impurities in the refrigerant, and then the refrigerant is transmitted to a high-pressure liquid storage device 20 to store the condensate of the refrigerant, then the refrigerant is transmitted to an electronic expansion valve B18 to adjust the flow of the refrigerant so as to adjust the heat absorption capacity and the system refrigeration capacity, then the refrigerant is transmitted to an outdoor heat exchanger 16 to realize the condensation function of the refrigerant, then the refrigerant is transmitted to a heat regenerator 23 through a four-way reversing valve 12, then the high-pressure refrigerant liquid obtained before throttling is supercooled through the heat regenerator 23, and then the refrigerant is transmitted to a gas-liquid separator 5 to separate the gas and the liquid of the refrigerant, so that the circulation is completed, at the moment, the electric refrigerant adjusting valve 3 is closed, the surface heater 2 does not work, at the moment, the refrigerant flow is a heat pump heating circulation, when the surface temperature of the outdoor heat exchanger 16 is lower than 0 ℃, the surface can be frosted, and the system efficiency is influenced, therefore, the defrosting circulation is as follows;
defrosting circulation: switching the four-way reversing valve 12, stopping the heat pump heating cycle, and performing a defrosting cycle: firstly, gas-liquid separation of refrigerant is realized through a gas-liquid separator 5, then the refrigerant is transmitted to a variable-frequency compressor 8 to be compressed and discharged high-temperature and high-pressure refrigerant gas, the refrigeration cycle is pushed to be performed, then the refrigerant gas is transmitted to an oil separator 11 to be separated out lubricating oil carried in the compressor exhaust gas, then the refrigerant gas is transmitted to a four-way reversing valve 12 to change the flow channel of the refrigerant, then the refrigerant gas is transmitted to an outdoor heat exchanger 16 to realize the condensation function of the refrigerant, then the refrigerant gas is transmitted to an electronic expansion valve B18 to adjust the flow rate of the refrigerant so as to adjust the heat absorption capacity and the system refrigeration capacity, then the refrigerant gas is transmitted to a high-pressure liquid storage device 20 to store the condensate of the refrigerant, then the refrigerant gas is transmitted to a drying filter 21 to remove moisture in the refrigerant and filter impurities in the refrigerant, then the state of the refrigerant is observed through a liquid sight glass 22, and then the refrigerant gas is transmitted to a heat regenerator 23 to enable the high-pressure refrigerant liquid before throttling to be supercooled, the refrigerant is transmitted to an electronic expansion valve A4 to adjust the flow of the refrigerant so as to adjust the refrigerating capacity, then is transmitted to a surface type heat exchanger 1 to condense and release heat to heat air, then is transmitted to a four-way reversing valve 12, is transmitted to a heat regenerator 23 through the four-way reversing valve 12 to enable high-pressure refrigerant liquid obtained before throttling to be supercooled, and is transmitted to a gas-liquid separator 5 to enable gas-liquid separation of the refrigerant to complete circulation, at the moment, an electric refrigerant regulating valve 3 is closed, a surface type heater 2 does not work, at the moment, the electric refrigerant regulating valve 3 is closed, the surface type heater 2 does not work, and at the moment, a variable speed fan 15 stops running;
and (3) circulation of lubricating oil: firstly, the inverter compressor 8 sucks in low-temperature and low-pressure refrigerant gas, then the refrigerant gas is transmitted to the oil separator 11 to separate lubricating oil carried in compressor exhaust gas, then the lubricating oil is transmitted to a filter to be filtered, then the lubricating oil is transmitted to the capillary tube 7 to throttle and reduce pressure of the high-pressure lubricating oil separated from the oil separator 11, and then the lubricating oil is transmitted to the inverter compressor 8.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a change air treatment refrigerating system that operating mode adaptability is strong, includes surface formula heat exchanger (1), control system (13) and fan speed regulator (14), its characterized in that: one side of the surface type heat exchanger (1) is provided with a surface type heater (2), the output end of the surface type heat exchanger (1) is provided with an electronic expansion valve A (4), the other end of the electronic expansion valve A (4) is provided with a heat regenerator (23), one end of the heat regenerator (23) is provided with a drying filter (21), one end of the drying filter (21) is provided with a high-pressure liquid storage device (20), one end of the high-pressure liquid storage device (20) is provided with an electronic expansion valve B (18), one end of the electronic expansion valve B (18) far away from the high-pressure liquid storage device (20) is provided with an outdoor heat exchanger (16), one end of the high-pressure liquid storage device (20) far away from the electronic expansion valve B (18) is communicated with the surface type heater (2), one end of the outdoor heat exchanger (16) is provided with a back pressure valve (17), and the back pressure valve (17) is communicated with the surface type heater (2), a four-way reversing valve (12) is arranged at one end, far away from the back pressure valve (17), of the outdoor heat exchanger (16), one end of the four-way reversing valve (12) is communicated with the heat regenerator (23), one end, far away from the outdoor heat exchanger (16), of the four-way reversing valve (12) is provided with an oil separator (11), one end, far away from the four-way reversing valve (12), of the oil separator (11) is communicated with two groups of variable frequency compressors (8), and a high-pressure switch (9) and a temperature and pressure integrated sensor B (10) are respectively arranged on a pipeline through which the oil separator (11) is communicated with the variable frequency compressors (8);
one end of the variable-frequency compressor (8) is provided with a gas-liquid separator (5), the middle position of the mutual communication of the gas-liquid separator (5) and the variable-frequency compressor (8) is provided with a temperature and pressure integrated sensor A (6), one end of the gas-liquid separator (5) far away from the variable-frequency compressor (8) is communicated with a heat regenerator (23), one end of the oil separator (11) far away from the variable-frequency compressor (8) is provided with a capillary tube (7), the capillary tube (7) is communicated with the variable-frequency compressor (8) and the gas-liquid separator (5), the fan speed regulator (14) is positioned on one side of an outdoor heat exchanger (16), and one end of the fan speed regulator (14) is provided with a variable-speed fan (15).
2. The variable duty flexible air handling refrigeration system of claim 1 further comprising: and a liquid viewing mirror (22) is arranged in the middle position where the dry filter (21) and the heat regenerator (23) are connected with each other, and the liquid viewing mirror (22) is communicated with the heat regenerator (23) and the dry filter (21) mutually.
3. The variable duty flexible air handling refrigeration system of claim 1 further comprising: the input end and the output end of the surface type heat exchanger (1) and the surface type heater (2) are both provided with stop valves.
4. The variable duty flexible air handling refrigeration system of claim 1 further comprising: and both sides of the surface type heat exchanger (1) and the surface type heater (2) are provided with a dry bulb temperature sensor and a wet bulb temperature sensor.
5. The variable duty flexible air handling refrigeration system of claim 1 further comprising: the regenerator (23) adopts refrigerants such as R502, R290, R600a, R134a, R22 and the like.
6. The variable duty flexible air handling refrigeration system of claim 1 further comprising: and check valves are arranged at the middle positions of connecting pipelines of the variable frequency compressor (8) and the oil separator (11).
7. The variable duty flexible air handling refrigeration system of claim 1 further comprising: two groups of filters are uniformly arranged on the pipeline at the output end of the surface type heat exchanger (1).
8. The variable duty flexible air handling refrigeration system of claim 1 further comprising: the four-way reversing valve (12) is uniformly provided with four groups of connecting holes, and the four groups of connecting holes are respectively communicated with the surface heat exchanger (1), the oil separator (11), the heat regenerator (23) and the outdoor heat exchanger (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022503998.0U CN214065120U (en) | 2020-11-03 | 2020-11-03 | Air treatment refrigerating system with strong working condition adaptability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022503998.0U CN214065120U (en) | 2020-11-03 | 2020-11-03 | Air treatment refrigerating system with strong working condition adaptability |
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| Publication Number | Publication Date |
|---|---|
| CN214065120U true CN214065120U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022503998.0U Expired - Fee Related CN214065120U (en) | 2020-11-03 | 2020-11-03 | Air treatment refrigerating system with strong working condition adaptability |
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| Country | Link |
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| CN (1) | CN214065120U (en) |
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2020
- 2020-11-03 CN CN202022503998.0U patent/CN214065120U/en not_active Expired - Fee Related
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