CN218380059U - Overlapping hot fluorine defrosting type refrigeration and hot water dual supply unit - Google Patents
Overlapping hot fluorine defrosting type refrigeration and hot water dual supply unit Download PDFInfo
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- CN218380059U CN218380059U CN202221857585.5U CN202221857585U CN218380059U CN 218380059 U CN218380059 U CN 218380059U CN 202221857585 U CN202221857585 U CN 202221857585U CN 218380059 U CN218380059 U CN 218380059U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
Overlapping formula hot fluorin defrosting type refrigeration and hot water bigeminy supply unit includes: refrigeration cycle system and heat pump cycle system, refrigeration cycle system includes: the refrigeration system comprises a refrigeration compressor, a four-way reversing valve, an evaporation and condensation heat exchanger, a liquid injection electronic expansion valve, an auxiliary condenser, a first refrigeration one-way valve, a second refrigeration one-way valve, a high-pressure liquid storage device, a first drying filter, a two-way electronic expansion valve, a refrigeration evaporator, a first gas-liquid separator, a first normally closed solenoid valve, a second normally closed solenoid valve, a normally open solenoid valve, a first cooling stop valve, a second cooling stop valve and an oil separator. The heat pump cycle system includes: the heat pump system comprises a heat pump compressor, a coaxial heat exchanger, a throttling capillary tube, a second gas-liquid separator, a second drying filter, a first heat pump stop valve and a second heat pump stop valve. The utility model provides a when the freezer is refrigerated, the heat of condensation that recovery system discharged for the heating becomes the hot water more than 60 ℃, it is required to provide production technology or life hot water, energy saving and emission reduction.
Description
Technical Field
The utility model relates to a freezer refrigeration technology field, concretely relates to overlapping formula hot fluorin defrosting type is freezing and hot water bigeminy supplies unit.
Background
The existing refrigeration house refrigeration system generally focuses on refrigeration effect and refrigeration house temperature guarantee, condensation heat generated by the circulation of the refrigeration system is usually cooled by municipal water or directly discharged to the air by a fan, adverse effect is also caused to the environment, and the utilization rate of energy efficiency is also reduced. Therefore, how to utilize the energy which can cause environmental pollution can not only protect the environment, but also improve the energy efficiency and realize the dual effects of energy conservation and emission reduction.
In order to solve the above problems, we have made a series of improvements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cascade type hot fluorine defrosting type refrigeration and hot water dual supply unit to overcome the above disadvantages and shortcomings existing in the prior art.
Overlapping formula hot fluorin defrosting type refrigeration and hot water bigeminy supply unit includes: a refrigeration cycle system and a heat pump cycle system, the refrigeration cycle system including: the refrigeration system comprises a refrigeration compressor, a four-way reversing valve, an evaporation condensation heat exchanger, a liquid spray electronic expansion valve, an auxiliary condenser, a first refrigeration one-way valve, a second refrigeration one-way valve, a high-pressure liquid storage device, a first drying filter, a two-way electronic expansion valve, a refrigeration evaporator, a first gas-liquid separator, a first normally closed solenoid valve, a second normally closed solenoid valve, a normally open solenoid valve, a first cooling stop valve, a second cooling stop valve and an oil separator, wherein the outlet end of the refrigeration compressor is connected with the four-way reversing valve through the oil separator;
the heat pump cycle system includes: the heat pump system comprises a heat pump compressor, a coaxial heat exchanger, a throttling capillary tube, a second gas-liquid separator, a second drying filter, a first heat pump stop valve and a second heat pump stop valve, wherein the heat pump compressor is connected with the coaxial heat exchanger, the coaxial heat exchanger is connected with the second drying filter, the coaxial heat exchanger is connected with an evaporation and condensation heat exchanger through the throttling capillary tube, the evaporation and condensation heat exchanger is connected with the second gas-liquid separator, the second gas-liquid separator is connected with the heat pump compressor, and the coaxial heat exchanger is connected with the first heat pump stop valve and the second heat pump stop valve.
Further, the auxiliary condenser is a finned tube air-cooled condenser.
The utility model has the advantages that:
compared with the prior art, the utility model, when providing the freezer refrigeration, the heat of condensation that recovery system discharged for the heating becomes the hot water more than 60 ℃, it is required to provide the required or life hot water of production technology, energy saving and emission reduction.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Reference numerals:
the refrigeration cycle system 100, the refrigeration compressor 110, the four-way reversing valve 120, the evaporative condensation heat exchanger 130, the liquid injection electronic expansion valve 140, the auxiliary condenser 150, the first refrigeration one-way valve 161 and the second refrigeration one-way valve 162.
The high-pressure liquid storage device 170, the first drying filter 180, the two-way electronic expansion valve 190, the refrigeration evaporator 1100, the first gas-liquid separator 1200, the first normally closed solenoid valve 1301, the second normally closed solenoid valve 1302, the normally open solenoid valve 1400, the first cooling stop valve 1501, the second cooling stop valve 1502, and the oil separator 1600.
The heat pump circulation system 200, the heat pump compressor 210, the coaxial heat exchanger 220, the throttle capillary 230, the second gas-liquid separator 240, the second dry filter 250, the heat pump first stop valve 261, and the heat pump second stop valve 262.
Detailed Description
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of the present invention.
As shown in fig. 1, the cascade hot-fluorine defrosting type refrigerating and hot water combined supply unit includes: a refrigeration cycle system 100 and a heat pump cycle system 200, the refrigeration cycle system 100 including: the refrigeration system comprises a refrigeration compressor 110, a four-way reversing valve 120, an evaporative condensation heat exchanger 130, a liquid spray electronic expansion valve 140, an auxiliary condenser 150, a first refrigeration one-way valve 161, a second refrigeration one-way valve 162, a high-pressure reservoir 170, a first dry filter 180, a two-way electronic expansion valve 190, a refrigeration evaporator 1100, a first gas-liquid separator 1200, a first normally closed solenoid valve 1301, a second normally closed solenoid valve 1302, a normally open solenoid valve 1400, a first cooling stop valve 1501, a second cooling stop valve 1502 and an oil separator 1600, wherein the outlet end of the refrigeration compressor 110 is connected with the four-way reversing valve 120 through the oil separator 1600, the four-way reversing valve 120 is connected with the inlet end of the refrigeration compressor 110 through the first gas-liquid separator 1200, the four-way reversing valve 120 is connected with the evaporative condensation heat exchanger 130, the evaporative condensation heat exchanger 130 is connected with the inlet end of the high-pressure reservoir 170 through the normally open solenoid valve 1400 and the first refrigeration one-way valve 161, the outlet end of the high-pressure reservoir 170 is connected with the first dry filter 180 through the second refrigeration one-way valve 162, the first dry filter 180 is connected with the refrigeration evaporator 1100 through the first refrigeration stop valve 1501 and the refrigeration compressor 150, the refrigeration compressor 150 is connected with the auxiliary condenser 150 through the auxiliary condenser 150, the refrigeration compressor 150 and the refrigeration compressor 150, the auxiliary condenser 150 through the first refrigeration compressor 1302, the auxiliary liquid spray electronic expansion valve 150 and the refrigeration compressor 150;
the heat pump cycle 200 includes: the heat pump system comprises a heat pump compressor 210, a coaxial heat exchanger 220, a throttling capillary tube 230, a second gas-liquid separator 240, a second drying filter 250, a heat pump first stop valve 261 and a heat pump second stop valve 262, wherein the heat pump compressor 210 is connected with the coaxial heat exchanger 220, the coaxial heat exchanger 220 is connected with the second drying filter 250, the coaxial heat exchanger 220 is connected with an evaporation and condensation heat exchanger 130 through the throttling capillary tube 230, the evaporation and condensation heat exchanger 130 is connected with the second gas-liquid separator 240, the second gas-liquid separator 240 is connected with the heat pump compressor 210, and the coaxial heat exchanger 220 is connected with the heat pump first stop valve 261 and the heat pump second stop valve 262.
The auxiliary condenser 150 is a finned tube air-cooled condenser.
The refrigeration compressor 110 constituting the refrigeration cycle system 100 of the present invention employs an R448A environment-friendly refrigerant; the heat pump compressor 210 constituting the heat pump cycle 200 uses an R1234yf eco-refrigerant. The evaporative condensation heat exchanger 130 is shared by the refrigeration cycle 100 and the heat pump cycle 200.
The utility model discloses an adopt the cascade compression mode to replace traditional single-stage compression mode, can make freezer storehouse temperature reach and be less than-25 ℃ to increase the heat pump circulation loop at heat pump compressor 210 place, overlap through refrigerating system, can realize freezer low temperature operating mode-30 ℃ evaporating temperature and prepare high temperature hot water and be greater than 60 ℃ purpose. The high-temperature hot water can be prepared by recovering the condensation heat of the refrigerant while ensuring the safe operation of the refrigeration house, so that the energy is saved, the environment is protected, and the energy consumption is reduced. When the temperature of the refrigeration house is lower than minus 20 ℃, the compression ratio of each stage of compressor can be reduced by adopting a cascade compression mode, the exhaust temperature and the compression ratio of the low-temperature compressor are far lower than the limit allowed by the compressor, the waste heat recovery efficiency is greatly improved, high-temperature hot water is prepared, and the energy efficiency of the whole machine is improved. The unit is additionally provided with an auxiliary finned tube air-cooled condenser of a refrigeration cycle loop. When the external hot water is stored and the refrigeration house is saturated and enters a hot gas defrosting mode, the operation of the heat pump circulation loop is stopped, the auxiliary condenser of the refrigeration circulation loop is immediately started, and the normal operation of the refrigeration system of the refrigeration house is ensured. The system is mainly arranged to ensure the safe operation of the refrigeration house, adopts a refrigeration house evaporator hot fluorine defrosting system, and simultaneously prepares high-temperature hot water by recovering the condensation heat of a refrigeration system.
The operation principle is as follows: when the refrigeration cycle system 100 and the heat pump cycle system 200 of the unit operate simultaneously, the refrigeration cycle system 100 of the unit sequentially passes through the refrigeration compressor 110, the oil separator 1600, the four-way reversing valve 120, the evaporation and condensation heat exchanger 130, the normally open electromagnetic valve 1400, the first refrigeration check valve 161, the high-pressure liquid reservoir 170, the second refrigeration check valve 162, the first drying filter 180, the first cooling stop valve 1501, the two-way electronic expansion valve 190, the refrigeration evaporator 1100, the second cooling stop valve 1502, the four-way reversing valve 120, the first gas-liquid separator 1200 and the refrigeration compressor 110, and the refrigeration cycle is completed.
When the unit operates the refrigeration cycle system 100 and the heat pump cycle system 200 at the same time, the heat pump cycle system 200 of the unit sequentially passes through the heat pump compressor 210, the coaxial heat exchanger 220, the second drying filter 250, the throttling capillary tube 230, the evaporative condensation heat exchanger 130, the second gas-liquid separator 240 and the heat pump compressor 210, and the heat pump cycle is completed.
When the unit operates the refrigeration cycle system 100 and the heat pump cycle system 200 simultaneously, municipal water supply from the outside of the unit sequentially passes through the heat pump first stop valve 261, the coaxial heat exchanger 220 and the heat pump second stop valve 262 to enter an external hot water system.
When the heat pump circulation system 200 of the unit stops running and the refrigeration circulation system 100 of the unit still runs, the refrigeration circulation system 100 of the unit sequentially passes through the refrigeration compressor 110, the oil separator 1600, the four-way reversing valve 120, the evaporative condensation heat exchanger 130, the first normally closed solenoid valve 1301, the auxiliary condenser 150, the first refrigeration check valve 161, the high-pressure reservoir 170, the second refrigeration check valve 162, the first drying filter 180, the first cooling stop valve 1501, the two-way electronic expansion valve 190, the refrigeration evaporator 1100, the second cooling stop valve 1502, the four-way reversing valve 120, the first gas-liquid separator 1200 and the refrigeration compressor 110 to complete the refrigeration circulation.
When the heat pump circulation system 200 of the unit stops running and the refrigeration circulation system 100 of the unit still runs, the liquid spraying cooling system of the refrigeration compressor sequentially passes through the refrigeration compressor 110, the oil separator 1600, the four-way reversing valve 120, the evaporation and condensation heat exchanger 130, the first normally closed solenoid valve 1301, the auxiliary condenser 150, the liquid spraying electronic expansion valve 140 and the refrigeration compressor 110. The refrigerant is throttled into a medium-temperature and medium-pressure gas-liquid mixed state by a liquid injection electronic expansion valve, is injected through a liquid injection port of a compressor, is continuously compressed, and is discharged from an exhaust port of the compressor after the compression is finished. The discharge temperature of the refrigeration compressor is reduced.
When the refrigeration house enters a defrosting process, the heat pump circulation system 200 of the unit stops running, and the refrigeration circulation system 100 of the unit sequentially passes through the refrigeration compressor 110, the oil separator 1600, the four-way reversing valve 120, the second cooling stop valve 1502, the refrigeration evaporator 1100, the two-way electronic expansion valve 190, the first cooling stop valve 1501, the first drying filter 180, the first normally closed electromagnetic valve 1301, the auxiliary condenser 150, the second normally closed electromagnetic valve 1302, the evaporative condensation heat exchanger 130, the four-way reversing valve 120, the first gas-liquid separator 1200 and the refrigeration compressor 110 to complete the defrosting circulation of the refrigeration system.
The utility model discloses the refrigeration cycle system of unit can make the freezer temperature reach and be less than-30 ℃, and the high temperature circulation system of unit utilizes the condensation heat of absorptive low temperature circulation system release to heat outside municipal cold water that supplies to the hot water that is higher than 60 ℃ simultaneously, provides required hot water of production technology or life hot water for the user. If the utility model discloses the heat pump circulation system shutdown that causes the unit because reasons such as hot water supply saturation or water source cut off the water in the unit operation, the normal operating of refrigeration cycle system is guaranteed through auxiliary condenser immediately to the refrigeration cycle system of unit to open hydrojet electronic expansion valve, with the exhaust temperature who reduces compressor, ensure freezer operation safety. In order to reduce energy consumption and reduce the fluctuation of the refrigerator temperature during defrosting of the refrigerator evaporator, the unit is additionally provided with the hot fluorine defrosting system, and the hot fluorine defrosting is implemented on the refrigerator evaporator by utilizing the heat pump function of the refrigeration cycle system, so that the energy is saved and the efficiency is high. The utility model discloses the high temperature hot water heat exchanger of unit adopts coaxial heat exchanger, and non-deformable is difficult for blockking up, and dirty resistant dirt is fast, and the oil return is smooth and easy.
The above description is directed to the specific embodiments of the present invention, but the present invention is not limited thereto, and various modifications may be made without departing from the spirit of the present invention.
Claims (2)
1. Overlapping formula hot fluorin defrosting type refrigeration and hot water bigeminy supply unit includes: a refrigeration cycle system (100) and a heat pump cycle system (200), characterized in that the refrigeration cycle system (100) includes: the refrigeration system comprises a refrigeration compressor (110), a four-way reversing valve (120), an evaporative condensation heat exchanger (130), a liquid spray electronic expansion valve (140), an auxiliary condenser (150), a first refrigeration one-way valve (161), a second refrigeration one-way valve (162), a high-pressure liquid reservoir (170), a first drying filter (180), a two-way electronic expansion valve (190), a refrigeration evaporator (1100), a first gas-liquid separator (1200), a first normally closed solenoid valve (1301), a second normally closed solenoid valve (1302), a normally open solenoid valve (1400), a first cooling stop valve (1501), a second cooling stop valve (1502) and an oil separator (1600), wherein the outlet end of the refrigeration compressor (110) is connected with the four-way reversing valve (120) through the oil separator (1600), the four-way reversing valve (120) is connected with the inlet end of the refrigeration compressor (110) through the first gas-liquid separator (1200), the four-way reversing valve (120) is connected with the evaporative condensation heat exchanger (130), the evaporative condensation heat exchanger (130) is connected with the inlet end of the high-pressure liquid reservoir (170) through the normally open solenoid valve (1400), the outlet end of the high-pressure liquid reservoir (170) is connected with the first drying filter (180) through the second drying filter (162), and the first drying filter (180), the system comprises a refrigeration evaporator (1100), a two-way electronic expansion valve (190), a first gas-liquid separator (1200), an auxiliary condenser (150), a liquid spraying electronic expansion valve (140), a high-pressure liquid storage device (170), a first refrigeration one-way valve (161), a first normally closed electromagnetic valve (1301), a second normally closed electromagnetic valve (1302), a first drying filter (180), a second refrigeration one-way valve (1302), a second refrigeration one-way valve (120), a second refrigeration one-way valve (150), a second refrigeration one-way valve (110), a second liquid spraying electronic expansion valve (150), a second refrigeration one-way valve (110), a first liquid spraying electronic expansion valve (150), a second refrigeration one-way valve (150), a first liquid spraying electronic expansion valve (150), a second refrigeration one-way valve (161), a first liquid spraying electronic expansion valve (150), a second evaporation and a second condensation heat exchanger (130);
the heat pump cycle system (200) includes: the heat pump system comprises a heat pump compressor (210), a coaxial heat exchanger (220), a throttling capillary tube (230), a second gas-liquid separator (240), a second drying filter (250), a first heat pump stop valve (261) and a second heat pump stop valve (262), wherein the heat pump compressor (210) is connected with the coaxial heat exchanger (220), the coaxial heat exchanger (220) is connected with the second drying filter (250), the coaxial heat exchanger (220) is connected with an evaporative condensation heat exchanger (130) through the throttling capillary tube (230), the evaporative condensation heat exchanger (130) is connected with the second gas-liquid separator (240), the second gas-liquid separator (240) is connected with the heat pump compressor (210), and the coaxial heat exchanger (220) is connected with the first heat pump stop valve (261) and the second heat pump stop valve (262).
2. The cascade hot-freon-defrost type combined freezing and hot-water supply unit as claimed in claim 1, wherein: the auxiliary condenser (150) is a finned tube air-cooled condenser.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221857585.5U CN218380059U (en) | 2022-07-19 | 2022-07-19 | Overlapping hot fluorine defrosting type refrigeration and hot water dual supply unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221857585.5U CN218380059U (en) | 2022-07-19 | 2022-07-19 | Overlapping hot fluorine defrosting type refrigeration and hot water dual supply unit |
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| CN218380059U true CN218380059U (en) | 2023-01-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978879A (en) * | 2023-03-21 | 2023-04-18 | 昆明理工大学 | High-efficient roast room-freezer coupled system |
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2022
- 2022-07-19 CN CN202221857585.5U patent/CN218380059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978879A (en) * | 2023-03-21 | 2023-04-18 | 昆明理工大学 | High-efficient roast room-freezer coupled system |
| CN115978879B (en) * | 2023-03-21 | 2023-06-13 | 昆明理工大学 | Efficient curing barn-freezer coupling system |
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