CN113432297A - Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit - Google Patents
Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit Download PDFInfo
- Publication number
- CN113432297A CN113432297A CN202110596410.7A CN202110596410A CN113432297A CN 113432297 A CN113432297 A CN 113432297A CN 202110596410 A CN202110596410 A CN 202110596410A CN 113432297 A CN113432297 A CN 113432297A
- Authority
- CN
- China
- Prior art keywords
- increasing
- enthalpy
- evaporator
- temperature
- supercooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- 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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit which comprises a compressor, a first condenser, a supercooling enthalpy-increasing coil, a throttling pipe, an evaporator and a fin set. According to the invention, the supercooling enthalpy-increasing coil is arranged, the supercooling enthalpy-increasing coil is communicated with the evaporator through the throttle pipe, and the supercooling enthalpy-increasing coil and the evaporator form a heat bridge by using the same aluminum foil fin group, so that the purposes of increasing enthalpy by using secondary supercooling as a refrigerant, preventing fins from frosting by using the heat of the medium-temperature high-pressure refrigerant flowing out of the first condenser, and preheating air flowing through the evaporator by using the fins near the supercooling enthalpy-increasing coil are achieved, thereby inhibiting the formation of a frosting environment. The system utilizes the afterheat of the medium-temperature high-pressure refrigerant from the first condenser to improve the temperature of the aluminum foil fins under the conditions of no loss of hot water energy, no need of arranging a reversing valve and no need of arranging a special expansion valve, thereby achieving the self-frost-inhibiting effect and improving the comprehensive energy efficiency coefficient and the operational reliability of the system.
Description
Technical Field
The invention relates to the technical field of air source heat pump systems, in particular to a supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit which realizes supercooling enthalpy-increasing self-frost-inhibiting through secondary supercooling, waste heat recovery and refrigerant enthalpy increasing.
Background
The air source heat pump water heater unit has the characteristics of energy conservation, environmental protection, intelligent safety, strong weather adaptability, high automation degree and the like, and is widely applied. However, when the air source heat pump hot water unit is used for heating in winter, the problem of frosting on the surface of the evaporator exists, and the efficiency and stable operation of the system are influenced. Due to the formation and growth of the frost layer, the air flow passing through the evaporator is reduced, the heat exchange amount is reduced, the heat exchange efficiency is reduced, the working condition of the unit is worsened, even the unit can not work normally, and the defrosting must be carried out timely.
The air source heat pump unit commonly used in the market at present comprises a hot water unit and a cold and hot unit, and a four-way reversing valve is required to be installed in order to better adapt to most areas of China and meet the requirements of cold and hot two-way functions. Therefore, defrosting by reversing the direction of the four-way valve to realize reverse circulation of the system is the most common method, as shown in fig. 2 and 3.
However, this method has the following problems:
1. when the system reversely circulates, an evaporator which exchanges heat with air during heating and absorbs heat is changed into a condenser during defrosting, the original condenser is changed into the evaporator, and because a refrigerant absorbs heat from a heat supply system during defrosting, the temperature of the heat supply system fluctuates, so that the stability of hot water preparation or the comfort of heating is influenced;
2. after defrosting is finished, switching is needed again to reestablish pressure and temperature balance, and a large amount of energy loss is caused;
3. due to the existence of the defrosting process, the total working time required by the system for preparing hot water or heating is prolonged;
4. when the four-way valve is used for reversing, the phenomenon of oil running can occur in the refrigerating system, and the reliability and the service life of the system are reduced.
In the specific air-conditioning engineering installation practice, workers can reduce the temperature of the saturated refrigerant liquid again by a method of lengthening and exposing the copper pipe at the rear end of the outlet of the condenser, but due to the limitation of space, the increasable length is usually limited, the lengthened and exposed copper pipe can only transfer heat with air by radiation, and the effect is not ideal.
Disclosure of Invention
Aiming at the problems of the existing air source heat pump, the invention provides a supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit.
The invention has the following inventive concept: the supercooling enthalpy increasing area is arranged between the first condenser and the throttle pipe, the medium-temperature high-pressure refrigerant flowing out of the first condenser is subjected to secondary supercooling enthalpy increase, and the supercooling enthalpy increasing area and the evaporator form a heat bridge by using the same fin group, so that the evaporator can absorb heat in the medium-temperature high-pressure refrigerant which flows out of the first condenser but is incompletely absorbed by hot water in the box, and the defrosting of fins of the evaporator is realized.
The technical scheme of the invention is as follows:
the supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit comprises a compressor, a first condenser, a throttle pipe, an evaporator and a fin group;
the method is characterized in that: the device also comprises a supercooling enthalpy-increasing coil;
the compressor is communicated with the inlet of the first condenser through a first pipeline; the outlet of the first condenser is communicated with the inlet of the supercooling enthalpy-increasing coil through a second pipeline, the outlet of the supercooling enthalpy-increasing coil is communicated with the inlet of the evaporator through a throttle pipe, and the outlet of the evaporator is connected with the compressor through a gas return pipeline;
the supercooling enthalpy-increasing coil and the evaporator coil share the same fin group to form a heat bridge.
Further, the first condenser is used for heating user side water, and medium-temperature high-pressure refrigerant flows out of the first condenser.
Furthermore, the heat of the medium-temperature high-pressure refrigerant flowing through the cooling enthalpy-increasing coil can heat the fins, so that the temperature of the fins is higher than the dew point temperature of air, and the surface of the evaporator is prevented from frosting.
Furthermore, the heat bridge enables the low-temperature refrigerant in the evaporator to absorb waste heat from the medium-temperature high-pressure refrigerant flowing through the supercooling enthalpy-increasing coil, so that the supercooling enthalpy-increasing of the medium-temperature high-pressure refrigerant is realized.
Furthermore, the supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit further comprises a fan, and the fan is used for forming an air convection heat transfer channel between the fin groups to enhance air flow.
Furthermore, under the driving of the fan, the air flowing through the cold enthalpy-increasing area is preheated, and the evaporator and the fins are prevented from frosting.
Further, the fin group is an aluminum foil fin group.
Furthermore, the first pipeline and the second pipeline are made of copper pipes.
The use method of the supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit comprises the following steps:
the compressor is started, the system enters a hot water preparation state, high-temperature and high-pressure gas-phase refrigerant discharged from the outlet of the compressor enters a first condenser through a first pipeline, the high-temperature and high-pressure gas-phase refrigerant transfers heat to water in the coil water tank in the process of flowing through the first condenser, and the high-temperature and high-pressure gas-phase refrigerant in the first condenser is condensed to become medium-temperature and high-pressure refrigerant while the water temperature is improved;
the medium-temperature high-pressure refrigerant enters the supercooling enthalpy-increasing coil pipe through the second pipeline, heat is conducted to the evaporator through the supercooling enthalpy-increasing coil pipe, the fin group and convection air, the temperature of the medium-temperature high-pressure refrigerant is further reduced, and the low-temperature high-pressure refrigerant after being supercooled again is throttled and decompressed through the throttle pipe to form a low-temperature low-pressure mixed refrigerant with a high liquid phase and a low gas phase;
the low-temperature low-pressure mixed refrigerant enters an inlet of the evaporator through the branch pipe, enters the evaporator in a turbulent flow state, is gasified, absorbs heat and boils, is changed into equal gas-liquid phase mixed refrigerant in the process of flowing through the evaporator coil, and continuously absorbs heat from the supercooling enthalpy-increasing coil, the fin group and convection air in the rear half section of the evaporator coil to be changed into supersaturated steam;
and the supersaturated steam enters the compressor from the outlet of the evaporator through the air return pipeline and circulates in a reciprocating way until the water temperature in the coil water tank reaches a set condition, and the supersaturated steam stops working.
Advantageous effects
According to the invention, the supercooling enthalpy-increasing coil is arranged, the supercooling enthalpy-increasing coil is communicated with the evaporator through the throttle pipe, and the supercooling enthalpy-increasing coil and the evaporator form a heat bridge by using the same aluminum foil fin group, so that the purposes of increasing enthalpy by using secondary supercooling as a refrigerant, preventing fins from frosting by using the heat of the medium-temperature high-pressure refrigerant flowing out of the first condenser, and preheating air flowing through the evaporator by using the fins near the supercooling enthalpy-increasing coil are achieved, thereby inhibiting the formation of a frosting environment. The system utilizes the afterheat of the medium-temperature high-pressure refrigerant from the first condenser to improve the temperature of the aluminum foil fins under the conditions of no loss of hot water energy, no need of arranging a reversing valve and no need of arranging a special expansion valve, thereby achieving the self-frost-inhibiting effect and improving the comprehensive energy efficiency coefficient and the operational reliability of the system.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: the invention provides a schematic structural diagram of a supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit;
wherein: 1. a compressor; 2. a first conduit; 3. a first condenser; 4. a coil water tank; 5. a second conduit; 6. a supercooling enthalpy-increasing coil pipe; 7. a subcooled enthalpy-increasing zone; 8, supercooling enthalpy-increasing coil outlet; 9. a throttle pipe; 10. a branching pipe; 11. an evaporator inlet; 12. an evaporator inlet; 13. an evaporator outlet; 14. an evaporator outlet; 15. an evaporation zone; 16. a return air duct; 17. a filter; 18. a fan; 19. an aluminum foil fin set; 20. an evaporator coil; 21. subcooling the enthalpy-increasing coil inlet.
FIG. 2: a heating working condition schematic diagram of a common air source heat pump water heater;
FIG. 3: the defrosting working condition schematic diagram of the common air source heat pump water heater.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.
As shown in fig. 1, the subcooling enthalpy-increasing self-defrosting air source heat pump hot water unit in the present embodiment includes a compressor 1, a first condenser 3, a cool enthalpy-increasing coil 6, a throttle pipe 9, an evaporator, and a fin group.
The outlet of the compressor 1 is connected with a first condenser 3 used for heating water at a user side through a copper first pipeline 2, the outlet of the first condenser 3 is connected with a supercooling enthalpy-increasing coil inlet 21 used for secondary supercooling and enthalpy increasing of a refrigerant through a copper second pipeline 5, the outlet 8 of the cold enthalpy-increasing coil is connected with a throttle pipe 9, the throttle pipe 9 is respectively connected with an evaporator inlet 11 and an evaporator inlet 12 through a branch pipe 10, and an evaporator outlet 13 and an evaporator outlet 14 are connected with a return air port of the compressor 1 through a return air pipeline 16 and a filter 17.
The supercooling enthalpy-increasing coil 6 and the evaporator coil 20 share the same aluminum foil fin group, the supercooling enthalpy-increasing coil 6 and the left part of the aluminum foil fin jointly form a supercooling enthalpy-increasing area 7 located at the upstream of convection air, and the evaporator coil 20 and the right part of the aluminum foil fin jointly form an evaporation area 15 located at the downstream of the convection air.
In addition, the supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit in the embodiment further comprises a fan 18, and the fan is used for forming an air convection heat transfer channel between the aluminum foil fin groups to enhance air flow.
When the compressor 1 is started, the system enters a hot water preparation state, a high-temperature high-pressure gas-phase refrigerant discharged from an outlet of the compressor 1 enters the first condenser 3 through the first pipeline 2, heat is transferred to water in the coil water tank 4 in the process that the high-temperature high-pressure gas-phase refrigerant flows through the first condenser 3, the water temperature is improved, and meanwhile, the high-temperature high-pressure gas-phase refrigerant in the first condenser 3 is condensed and becomes a medium-temperature high-pressure refrigerant;
the medium-temperature high-pressure refrigerant enters the supercooling enthalpy-increasing coil 6 through the second pipeline 5, heat is conducted to the evaporation area 15 through the supercooling enthalpy-increasing coil 6, the aluminum foil fin group and convection air, the temperature of the medium-temperature high-pressure refrigerant is further reduced, the low-temperature high-pressure liquid refrigerant obtained after secondary supercooling is throttled and decompressed through the throttling pipe 9, and a low-temperature low-pressure mixed refrigerant with 75% of liquid phase and 25% of gas phase is formed;
the low-temperature low-pressure mixed refrigerant enters an evaporator inlet 11 and an evaporator inlet 12 through a branch pipe 10 respectively, enters an evaporation area 15 in a turbulent flow state to be gasified, absorb heat and boil, the low-temperature low-pressure mixed refrigerant is changed into 50% liquid-phase mixed refrigerant and 50% gas-phase mixed refrigerant when flowing through the evaporator coil for about a half way, and the 50% liquid-phase mixed refrigerant and the 50% gas-phase mixed refrigerant continuously absorb heat from a supercooling enthalpy-increasing coil, an aluminum foil fin group and convection air in the back half section of the evaporator coil to be changed into supersaturated vapor;
the supersaturated steam enters the compressor 1 from the evaporator outlet 13 and the evaporator outlet 14 through the air return pipeline 16 and the filter 17, and the supersaturated steam is circulated in a reciprocating mode until the water temperature in the coil water tank 4 reaches a set condition, and the supersaturated steam stops working.
When the supercooling enthalpy-increasing self-defrosting air source heat pump hot water unit works in winter, according to the characteristics of the heat pump hot water unit, the temperature of the medium-temperature high-pressure refrigerant entering the supercooling enthalpy-increasing coil 6 is generally between 20 ℃ and 60 ℃ (the temperature of the medium-temperature high-pressure refrigerant is 40.5 ℃ under the standard working condition and is related to the current environmental temperature and the real-time water temperature in the coil water tank 4), and the medium-temperature high-pressure refrigerant contains more heat (waste heat) and is not absorbed by the water in the first condenser.
Because the supercooling enthalpy-increasing coil 6 and the evaporator coil 20 form a heat bridge through the aluminum foil fin group 19, the temperature of the evaporator fins is improved by utilizing the heat conduction between the supercooling enthalpy-increasing coil and the evaporator coils, so that the temperature of the evaporator coils and the fins is higher than the dew point temperature of air, and the surface of the evaporator is prevented from frosting; and the medium-temperature high-pressure refrigerant is supercooled for the second time by the supercooling enthalpy-increasing coil 6, so that the temperature is further reduced to be closer to the evaporation temperature, the heat absorption capacity is improved, and the enthalpy increasing purpose is realized. Meanwhile, under the driving of the fan 18, the air flowing through the supercooling enthalpy-increasing zone 7 is preheated by the supercooling enthalpy-increasing coil 6 and the nearby aluminum foil fin group 19, and the frosting possibility is further reduced.
In the invention, the (secondary) supercooling enthalpy-increasing area of the medium-temperature high-pressure refrigerant is arranged, and the aluminum foil fin group 19 is utilized to establish a heat bridge and a convection preheating area between the supercooling enthalpy-increasing coil 6 and the evaporator coil 20, so that the waste heat of the medium-temperature high-pressure refrigerant from the first condenser 3 is fully utilized. The whole system reduces four-way valves which are required to be installed in the traditional reverse circulation defrosting mode, utilizes the waste heat to inhibit the surface of the evaporator from frosting under the conditions of no need of reverse circulation and no loss of hot water energy, improves the comprehensive energy efficiency coefficient of the system, simplifies the system structure and enhances the stability and reliability of the system operation.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. A supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit comprises a compressor, a first condenser, a throttle pipe, an evaporator and a fin group;
the method is characterized in that: the device also comprises a supercooling enthalpy-increasing coil;
the compressor is communicated with the inlet of the first condenser through a first pipeline; the outlet of the first condenser is communicated with the inlet of the supercooling enthalpy-increasing coil through a second pipeline, the outlet of the supercooling enthalpy-increasing coil is communicated with the inlet of the evaporator through a throttle pipe, and the outlet of the evaporator is connected with the compressor through a gas return pipeline;
the supercooling enthalpy-increasing coil and the evaporator coil share the same fin group to form a heat bridge.
2. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 1, characterized in that: the first condenser is used for heating water for a user side, and medium-temperature high-pressure refrigerant flows out of the first condenser.
3. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 2, characterized in that: the heat of the medium-temperature high-pressure refrigerant flowing through the cooling enthalpy-increasing coil can heat the fins, so that the temperature of the fins is higher than the dew point temperature of air, and the surface of the evaporator is prevented from frosting.
4. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 2, characterized in that: the heat bridge enables the low-temperature refrigerant in the evaporator to absorb waste heat from the medium-temperature high-pressure refrigerant flowing through the supercooling enthalpy-increasing coil, so that supercooling enthalpy increase of the medium-temperature high-pressure refrigerant is realized.
5. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 1, characterized in that: the fan is used for forming an air convection heat transfer channel between the fin groups and enhancing air flow.
6. A supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 5, characterized in that: under the drive of the fan, air flowing through the cold enthalpy-increasing area is preheated, and the evaporator and the fins are prevented from frosting.
7. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 1, characterized in that: the fin group is an aluminum foil fin group.
8. The supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claim 1, characterized in that: the first pipeline and the second pipeline are made of copper pipes.
9. The use method of the supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit according to claims 1 to 8 is characterized by comprising the following steps: the method comprises the following steps:
the compressor is started, the system enters a hot water preparation state, high-temperature and high-pressure gas-phase refrigerant discharged from the outlet of the compressor enters a first condenser through a first pipeline, the high-temperature and high-pressure gas-phase refrigerant transfers heat to water in the coil water tank in the process of flowing through the first condenser, and the high-temperature and high-pressure gas-phase refrigerant in the first condenser is condensed to become medium-temperature and high-pressure refrigerant while the water temperature is improved;
the medium-temperature high-pressure refrigerant enters the supercooling enthalpy-increasing coil pipe through the second pipeline, heat is conducted to the evaporator through the supercooling enthalpy-increasing coil pipe, the fin group and convection air, the temperature of the medium-temperature high-pressure refrigerant is further reduced, and the low-temperature high-pressure refrigerant after being supercooled again is throttled and decompressed through the throttle pipe to form a low-temperature low-pressure mixed refrigerant with a high liquid phase and a low gas phase;
the low-temperature low-pressure mixed refrigerant enters an inlet of the evaporator through the branch pipe, enters the evaporator in a turbulent flow state, is gasified, absorbs heat and boils, is changed into equal gas-liquid phase mixed refrigerant in the process of flowing through the evaporator coil, and continuously absorbs heat from the supercooling enthalpy-increasing coil, the fin group and convection air in the rear half section of the evaporator coil to be changed into supersaturated steam;
and the supersaturated steam enters the compressor from the outlet of the evaporator through the air return pipeline and circulates in a reciprocating way until the water temperature in the coil water tank reaches a set condition, and the supersaturated steam stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110596410.7A CN113432297A (en) | 2021-05-30 | 2021-05-30 | Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110596410.7A CN113432297A (en) | 2021-05-30 | 2021-05-30 | Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113432297A true CN113432297A (en) | 2021-09-24 |
Family
ID=77803259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110596410.7A Pending CN113432297A (en) | 2021-05-30 | 2021-05-30 | Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113432297A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020072101A (en) * | 2001-03-09 | 2002-09-14 | (주)티이엔 | An evaporative temperature compensation device and process of heat pump |
| CN200943983Y (en) * | 2006-08-14 | 2007-09-05 | 王卫民 | Defrosting structure of hot pump air conditioner set |
| CN103363710A (en) * | 2013-07-05 | 2013-10-23 | 广东长菱空调冷气机制造有限公司 | Heat pump system of air source heat pump water heater |
| CN203413824U (en) * | 2013-07-18 | 2014-01-29 | 四川双亿实业有限公司 | Bypass-defrosting enhanced vapor injection type heat pump hot water machine set with low-temperature air source |
| CN105865095A (en) * | 2016-04-18 | 2016-08-17 | 广东高而美制冷设备有限公司 | Anti-freezing and super-cooling enthalpy increasing system |
| CN108106042A (en) * | 2017-12-12 | 2018-06-01 | 石家庄大唐制冷设备有限公司 | Effectively prevent the air energy unit of evaporimeter frosting |
| CN212205141U (en) * | 2020-01-09 | 2020-12-22 | 浙江思科制冷股份有限公司 | Low-ring-temperature air source heat pump system adopting double supercooling modes |
-
2021
- 2021-05-30 CN CN202110596410.7A patent/CN113432297A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020072101A (en) * | 2001-03-09 | 2002-09-14 | (주)티이엔 | An evaporative temperature compensation device and process of heat pump |
| CN200943983Y (en) * | 2006-08-14 | 2007-09-05 | 王卫民 | Defrosting structure of hot pump air conditioner set |
| CN103363710A (en) * | 2013-07-05 | 2013-10-23 | 广东长菱空调冷气机制造有限公司 | Heat pump system of air source heat pump water heater |
| CN203413824U (en) * | 2013-07-18 | 2014-01-29 | 四川双亿实业有限公司 | Bypass-defrosting enhanced vapor injection type heat pump hot water machine set with low-temperature air source |
| CN105865095A (en) * | 2016-04-18 | 2016-08-17 | 广东高而美制冷设备有限公司 | Anti-freezing and super-cooling enthalpy increasing system |
| CN108106042A (en) * | 2017-12-12 | 2018-06-01 | 石家庄大唐制冷设备有限公司 | Effectively prevent the air energy unit of evaporimeter frosting |
| CN212205141U (en) * | 2020-01-09 | 2020-12-22 | 浙江思科制冷股份有限公司 | Low-ring-temperature air source heat pump system adopting double supercooling modes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101644508B (en) | Multi-connected air conditioner multifunctional system for cold water and hot water | |
| CN108759142B (en) | Special cascade air source high-temperature heat pump cooling and heating system | |
| CN103900184A (en) | Water cooling medium three-pipe refrigerating and heating air-conditioning system | |
| CN106196698B (en) | A kind of directly condensation heating heat pump apparatus of air source with radiator | |
| CN105402966A (en) | Solar energy-based air source heat pump | |
| US10578344B2 (en) | Reversible liquid suction gas heat exchanger | |
| CN105972717A (en) | Variable refrigerant volume air conditioning system and control method thereof | |
| CN108844265A (en) | A kind of energy-saving and water-saving type heat water-spraying removes defrosting system | |
| CN111780444B (en) | Vapor compression cascade heat pump cycle and single-stage heat pump cycle combined system | |
| US8726684B2 (en) | Reversible system for recovering of heat energy by sampling and transfer of calories from one or more media into one or more other such media | |
| CN105953485A (en) | Heat exchange method and system and heat pump system with defrosting function | |
| CN113432297A (en) | Supercooling enthalpy-increasing self-frost-inhibiting air source heat pump hot water unit | |
| CN109869942B (en) | Flat pipe sleeve type heat recovery heat pump air conditioning system and working method thereof | |
| CN110285572B (en) | Air-supplying and enthalpy-increasing double-source heat pump water heater system | |
| CN208846601U (en) | A kind of cold water heat pump unit and air-conditioning equipment | |
| CN108759156B (en) | Secondary throttling middle incomplete cooling two-stage compression heat pump system | |
| KR100459045B1 (en) | The heating and cooling system device use for heat pump | |
| CN206269414U (en) | A kind of auxiliary hot enthalpy increasing heat pump system | |
| CN113237145B (en) | Heat pump air conditioning device and implementation method thereof | |
| CN214536924U (en) | Parallel compressor air source heat pump system | |
| KR101175635B1 (en) | An air conditioning system with non-defrost | |
| CN211695488U (en) | Cold and hot combined energy-saving device for recovering unit exhaust condensation heat | |
| CN113218102B (en) | Heat pump system based on three devices and defrosting method thereof | |
| CN217715511U (en) | Year-round refrigeration type air-cooled water chilling unit | |
| CN102563967B (en) | Dual-system fluoride-free energy-saving air source heat pump multipurpose machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210924 |