CN105509377A - Trans critical co2Circulating system, heat pump water heater and defrosting method - Google Patents
Trans critical co2Circulating system, heat pump water heater and defrosting method Download PDFInfo
- Publication number
- CN105509377A CN105509377A CN201510981977.0A CN201510981977A CN105509377A CN 105509377 A CN105509377 A CN 105509377A CN 201510981977 A CN201510981977 A CN 201510981977A CN 105509377 A CN105509377 A CN 105509377A
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- circulatory system
- evaporimeter
- branch road
- critical cycle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000010257 thawing Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003507 refrigerant Substances 0.000 claims abstract description 30
- 230000008676 import Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- 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
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a transcritical co2 circulating system, a heat pump water heater and a defrosting method. The transcritical co2 circulating system comprises a compressor, a condenser, a throttling assembly and an evaporator which are connected in sequence, the opening degree of the throttling assembly is adjustably set, and the transcritical co2 circulating system has the following defrosting states: the refrigerant compressed by the compressor flows to the evaporator through the condenser and the throttling component to defrost the evaporator. By applying the technical scheme of the invention, the refrigerant compressed by the compressor flows to the evaporator through the condenser and the throttling component to defrost the evaporator, so that compared with the prior art, the invention saves an electromagnetic valve for defrosting, simplifies the structure and is beneficial to reducing the cost.
Description
Technical field
The present invention relates to heat-pump apparatus field, in particular to a kind of Trans-critical cycle co2 circulatory system, Teat pump boiler and Defrost method.
Background technology
Fig. 1 shows the structural representation of the Teat pump boiler of prior art.The Teat pump boiler of prior art comprise compressor 10, air cooler 20, regenerator 30, evaporimeter 40, electric expansion valve 60 and for promoting the blower fan 70 of the heat exchange of evaporimeter 40.
At present, Trans-critical cycle co
2the Defrost method of Teat pump boiler generally adopts the method for hot gas defrosting, as shown in Figure 1, connect a threeway at compressor 10 blast pipe, a road connects the import of air cooler, the import of another road connected electromagnetic valve 50, the outlet of magnetic valve connects the import of evaporimeter 40.Utilize compressor 10 to produce the gas of HTHP, by defrosting magnetic valve 50, directly enter evaporimeter 40 and defrost.
The Trans-critical cycle co2 circulatory system of the Teat pump boiler of prior art need increase the magnetic valve of defrosting, complex structure, is unfavorable for that simplifying structure reduces costs.
Due to co
2in trans critical cycle, have higher operating pressure, can reach more than 10MPa, cross valve there will be under this hyperbaric environment collaborates, and therefore cross valve reverse cycle defrost method cannot be applied.
The heat that hot gas defrosting mainly relies on compressor 10 to do work and produces defrosts, and defrosting time is long, and defrosting is more to latter stage, and defrosting effect is poorer.Co simultaneously
2heat pump water heater system is a trans critical cycle system, and high side pressure is up to more than 10MPa, and gases at high pressure directly enter evaporimeter 40, evaporimeter 40 may be caused impaired, thus affect the service life of evaporimeter 40.If increase capillary-compensated step-down before defrosting magnetic valve, electromagnetic valve entrance temperature and cold medium flux can be reduced, thus affect defrosting effect and extend defrosting time.
Summary of the invention
Main purpose of the present invention is to provide a kind of Trans-critical cycle co2 circulatory system, Teat pump boiler and Defrost method, to solve magnetic valve, the complex structure problem that need increase defrosting of the prior art.
To achieve these goals, according to an aspect of the present invention, a kind of Trans-critical cycle co is provided
2the circulatory system, comprise the compressor, condenser, orifice union and the evaporimeter that connect successively, orifice union aperture is adjustably arranged, Trans-critical cycle co
2the circulatory system has following defrost state: flow to evaporimeter through condenser, orifice union, to defrost to evaporimeter by the refrigerant of compressor compresses.
Further, orifice union has the state without throttling action.
Further, orifice union comprises electric expansion valve, and electric expansion valve is the adjustable electric expansion valve of aperture.
Further, orifice union comprises: the first branch road, and the import of the first branch road is communicated with condenser, and the outlet of the first branch road is communicated with evaporimeter, and the first branch road is arranged with can selecting break-make; Second branch road, the import of the second branch road is communicated with condenser, and the outlet of the second branch road is communicated with evaporimeter, and the second branch road is arranged with can selecting break-make, and the second branch road is provided with throttle part.
Further, the first branch road is provided with the first valve; And/or, the second branch road is provided with the second valve.
Further, also comprise water circulation system, water circulation system comprises the First Heat Exchanger arranged with condenser heat exchange, to utilize the water heating refrigerant in First Heat Exchanger under defrost state.
Further, water circulation system also comprises water circulating pump, and water inlet or the delivery port of water circulating pump and First Heat Exchanger are communicated with.
Further, also comprise regenerator, regenerator comprises: the second heat exchanger, the import of the second heat exchanger and the outlet of condenser, and the outlet of the second heat exchanger is communicated with evaporator; 3rd heat exchanger, the import of the 3rd heat exchanger and the outlet of evaporimeter, the outlet of the 3rd heat exchanger is communicated with the gas returning port of compressor.
According to a further aspect in the invention, provide a kind of Teat pump boiler, this Teat pump boiler comprises above-mentioned Trans-critical cycle co
2the circulatory system.
According to a further aspect in the invention, a kind of above-mentioned Trans-critical cycle co is provided
2the Defrost method of the circulatory system, comprises Defrost operation, and Defrost operation comprises: by the refrigerant by compressor compresses through condenser, flow to evaporimeter without the orifice union under throttle, to defrost to evaporimeter.
Further, run before the defrosting carried out before being included in Defrost operation, run and comprise: step S1: compressor was run for first scheduled time with the frequency that defrosts before defrosting, defrosting frequency is greater than Trans-critical cycle co
2the circulatory system heats the frequency of the compressor under state; Step S2: the blower fan stopping setting corresponding with evaporimeter, and/or, stop the water circulation of carrying out the water circulation system of heat exchange with condenser; Step S3: after completing steps S2 second scheduled time, adjusts to defrosting aperture by the aperture of orifice union, and defrosting aperture is greater than Trans-critical cycle co
2the circulatory system heats the aperture of the orifice union under state.
Apply technical scheme of the present invention, flow to evaporimeter by the refrigerant of compressor compresses through condenser, orifice union, to defrost to evaporimeter, hinge structure saves the magnetic valve for defrosting, and simplifies the structure, and is conducive to reducing costs.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the Trans-critical cycle co of prior art
2the structural representation of the circulatory system;
Fig. 2 shows the Trans-critical cycle co of embodiments of the invention
2the structural representation of the circulatory system;
Fig. 3 shows the Trans-critical cycle co of embodiments of the invention
2the defrost operation flow chart of the circulatory system.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, compressor; 2, condenser; 3, orifice union; 4, evaporimeter; 5, regenerator; 51, the second heat exchanger; 52, the 3rd heat exchanger; 6, water circulation system; 61, First Heat Exchanger; 62, water inlet; 63, delivery port; 8, water pump; 9, blower fan.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 2, the Trans-critical cycle co of the present embodiment
2the circulatory system comprises the compressor 1, condenser 2, orifice union 3 and the evaporimeter 4 that connect successively, orifice union 3 aperture is adjustably arranged, the Trans-critical cycle co2 circulatory system has following defrost state: the refrigerant compressed by compressor 1 flows to evaporimeter 4 through condenser 2, orifice union 3, to defrost to evaporimeter 4.
After compressor 1 compresses, refrigerant is HTHP refrigerant, and when refrigerant is upon compression without throttling completely or without throttling and without heat exchange, still can have higher temperature, it still may be used for defrosting operation.
Condenser 2 generally also has certain throttling action; under the aperture of orifice union 3 is adjusted to the maximum state of aperture; after after compression, refrigerant flows through condenser 2, pressure also declines to some extent; the pressure of the refrigerant that the outlet therefore entering the refrigerant pressure ratio compressors 1 of evaporimeter 4 is flowed out is low; therefore directly guide the refrigerant of the outflow of the outlet of compressor 1 into evaporimeter 4 relative to of the prior art shown in Fig. 1 to defrost, be conducive to protection evaporimeter 4 and do not damaged by the refrigerant of high pressure.
Relative to the prior art shown in Fig. 1, the Trans-critical cycle co of the present embodiment
2the circulatory system can save the branch road at magnetic valve 50 wherein and place thereof, simplifies Trans-critical cycle co
2the structure of the circulatory system, saves parts.
In the present embodiment, orifice union 3 has the state without throttling action.Refrigerant gasifies after throttling, and temperature reduces, and without the orifice union 3 of throttling action during selection maximum opening, is conducive to the broadening adjustable range flowing to the temperature of the refrigerant of evaporimeter 4.
In the present embodiment, orifice union 3 comprises electric expansion valve, and electric expansion valve is the adjustable electric expansion valve of aperture.Such as adopt the patent No. to be CN203483549, name is called the electric expansion valve in a kind of air-conditioning and electric expansion valve thereof.When defrosting mode, electric expansion valve standard-sized sheet, makes the refrigerant entering evaporimeter 4 many as much as possible, and does not produce throttling action.
In another preferred embodiment of the application, orifice union 3 comprises the first branch road and the second branch road.
The import of the first branch road is communicated with condenser 2, and the outlet of the first branch road is communicated with evaporimeter 4, and the first branch road is arranged with can selecting break-make.
The import of the second branch road is communicated with condenser 2, and the outlet of the second branch road is communicated with evaporimeter 4, and the second branch road is arranged with can selecting break-make, and the second branch road is provided with throttle part.
First branch road and the second branch road form the branch road arranged side by side be connected between evaporimeter 4 and condenser 2, therefore, when the second branch road being provided with throttle part is in closed state, first branch road can be adjusted to connected state, flow to evaporimeter 4 to make the refrigerant flowed out by condenser 2 and carry out defrosting operation.
Certainly, throttle part also can be that aperture regulates choke valve, when the first branch road is in connected state, then through the aperture of throttle part, thus the aperture of the entirety of adjustment orifice union.
First branch road is provided with the first valve; To realize the break-make selected of the first branch road.Certainly, the first valve also can be the adjustable valve of aperture.
Second branch road is provided with the second valve; To realize the break-make selected of the second branch road.Certainly, the second valve also can be the adjustable valve of aperture.
In the present embodiment, Trans-critical cycle co
2the circulatory system also comprises water circulation system 6, and water circulation system 6 comprises the First Heat Exchanger 61 arranged with condenser 2 heat exchange, to utilize the water heating refrigerant in First Heat Exchanger 61 under defrost state.
By the water in water circulation system 6, heat effect is produced to the refrigerant in condenser 2, be conducive to improving the defrosting effect to evaporimeter 4.
In the present embodiment, water circulation system 6 also comprises water tank, and water tank has import and outlet, and the outlet of water tank is communicated with the water inlet 62 of First Heat Exchanger 61, and the import of water tank is communicated with First Heat Exchanger 61 delivery port 63, and water tank is for storing the water heated through condenser 2.
Shown in Fig. 2 is Trans-critical cycle co
2the circulatory system is the circulatory system of Teat pump boiler, and wherein condenser 2 and water circulation system 6 are the critical piece of the air cooler of Teat pump boiler.
Certainly, the Trans-critical cycle co of the present embodiment
2the circulatory system may be used for air-conditioner equally, above-mentioned water circulation system 6 can put aside certain heat when the work that heats of air-conditioner, under defrosting duty, be used for the heat that water circulation system 6 is put aside to heat the refrigerant being used for defrosting, to improve the effect of defrosting.
Water circulation system 6 also comprises water circulating pump 8, and water inlet 62 or the delivery port 63 of water circulating pump 8 and First Heat Exchanger 61 are communicated with.
Under defrosting duty, can utilize water circulating pump 8 by the hot water circuit of saving in water tank to First Heat Exchanger 61 with the refrigerant in heating-condensing device 2.Also passable, under defrosting duty, stop the operation of water circulating pump 8, utilize the hot water stored in First Heat Exchanger 61 to heat the refrigerant in condenser 2.
The Trans-critical cycle co2 circulatory system also comprises water circulation system 6 and also comprises regenerator 5, and regenerator 5 comprises the second heat exchanger 51 and the 3rd heat exchanger 52.
The import of the second heat exchanger 51 and the outlet of condenser 2, the outlet of the second heat exchanger 51 and evaporimeter 4 inlet communication;
The import of the 3rd heat exchanger 52 and the outlet of evaporimeter 4, the outlet of the 3rd heat exchanger 52 is communicated with the gas returning port of compressor 1.
According to the another aspect of the application, the present embodiment also discloses a kind of Teat pump boiler, and this Teat pump boiler comprises the above-mentioned Trans-critical cycle co2 circulatory system.
Owing to have employed above-mentioned Trans-critical cycle co
2the Teat pump boiler of the circulatory system, eliminates defrosting magnetic valve, reduces cost, simplify operational system, improves the stability of unit operation; Further, refrigerant is through air cooler, and in Absorbable rod air cooler, the heat of hot water defrosts, and improves defrosting efficiency.Moreover gases at high pressure can not directly enter evaporimeter 4, reduce the risk that evaporimeter 4 damages.
According to the another aspect of the application, the present embodiment also discloses above-mentioned Trans-critical cycle co
2the Defrost method of the circulatory system, Defrost method comprises Defrost operation, and Defrost operation comprises:
By the refrigerant compressed by compressor 1 through condenser 2, flow to evaporimeter 4 without the orifice union 3 under throttle, to defrost to evaporimeter 4.
Run before the defrosting that Defrost method carries out before being also included in Defrost operation, run before defrosting and comprise:
Step S1: compressor 1 was run for first scheduled time with the frequency that defrosts, defrosting frequency is greater than the operating frequency that the Trans-critical cycle co2 circulatory system heats the compressor 1 under state;
Step S2: the blower fan 9 stopping setting corresponding with evaporimeter 4, and/or, stop the water circulation of carrying out the water circulation system of heat exchange with condenser 2;
Step S3: after completing steps S2 second scheduled time, adjusts to defrosting aperture by the aperture of orifice union 3, and defrosting aperture is greater than Trans-critical cycle co
2the circulatory system heats the aperture of the orifice union 3 under state.
As shown in Figure 3, system Defrost method is: the first, and system is in water heating operational mode, when meeting defrosting condition, and compressor operating defrosting frequency; After second, 30 seconds, water pump and blower fan stop simultaneously; 3rd, after 10 seconds, electric expansion valve runs defrosting frequency, and the refrigerant without throttling enters evaporator defrost; 4th, when system meet exit defrosting condition time, compressor, blower fan, water pump run according to the moving law of water heating, electric expansion valve recover throttling function, the moving law according to water heating runs.In whole defrost process, compressor can not be shut down.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a Trans-critical cycle co
2the circulatory system, it is characterized in that, comprise the compressor (1), condenser (2), orifice union (3) and the evaporimeter (4) that connect successively, described orifice union (3) aperture is adjustably arranged, described Trans-critical cycle co
2the circulatory system has following defrost state: the refrigerant compressed by described compressor (1) flows to described evaporimeter (4) through described condenser (2), described orifice union (3), to defrost to described evaporimeter (4).
2. Trans-critical cycle co according to claim 1
2the circulatory system, is characterized in that, described orifice union (3) has the state without throttling action.
3. Trans-critical cycle co according to claim 2
2the circulatory system, is characterized in that, described orifice union (3) comprises electric expansion valve, and described electric expansion valve is the adjustable electric expansion valve of aperture.
4. Trans-critical cycle co according to claim 2
2the circulatory system, is characterized in that, described orifice union (3) comprising:
First branch road, the import of described first branch road is communicated with described condenser (2), and the outlet of described first branch road is communicated with described evaporimeter (4), and described first branch road is arranged with can selecting break-make;
Second branch road, the import of described second branch road is communicated with described condenser (2), the outlet of described second branch road is communicated with described evaporimeter (4), and described second branch road is arranged with can selecting break-make, and described second branch road is provided with throttle part.
5. Trans-critical cycle co according to claim 4
2the circulatory system, is characterized in that,
Described first branch road is provided with the first valve; And/or,
Described second branch road is provided with the second valve.
6. Trans-critical cycle co according to claim 1
2the circulatory system, it is characterized in that, also comprise water circulation system (6), described water circulation system (6) comprises the First Heat Exchanger (61) arranged with described condenser (2) heat exchange, to utilize the water heating refrigerant in described First Heat Exchanger (61) under described defrost state.
7. Trans-critical cycle co according to claim 6
2the circulatory system, it is characterized in that, described water circulation system (6) also comprises water circulating pump (8), and water inlet (62) or the delivery port (63) of described water circulating pump (8) and described First Heat Exchanger (61) are communicated with.
8. Trans-critical cycle co according to any one of claim 1 to 7
2the circulatory system, is characterized in that, also comprises regenerator (5), and described regenerator (5) comprising:
Second heat exchanger (51), the import of described second heat exchanger (51) and the outlet of described condenser (2), the outlet of described second heat exchanger (51) and described evaporimeter (4) inlet communication;
3rd heat exchanger (52), the described import of the 3rd heat exchanger (52) and the outlet of described evaporimeter (4), the outlet of described 3rd heat exchanger (52) is communicated with the gas returning port of described compressor (1).
9. a Teat pump boiler, is characterized in that, comprises the Trans-critical cycle co according to any one of claim 1 to 8
2the circulatory system.
10. a Trans-critical cycle co according to any one of claim 1 to 8
2the Defrost method of the circulatory system, is characterized in that, comprises Defrost operation, and described Defrost operation comprises:
By the refrigerant compressed by compressor (1) through condenser (2), flow to described evaporimeter (4) without the orifice union (3) under throttle, to defrost to evaporimeter (4).
11. Trans-critical cycle co according to claim 10
2the Defrost method of the circulatory system, is characterized in that, runs before the defrosting carried out before being included in described Defrost operation, runs and comprise before described defrosting:
Step S1: described compressor (1) was run for first scheduled time with the frequency that defrosts, described defrosting frequency is greater than described Trans-critical cycle co
2the circulatory system heats the frequency of the described compressor (1) under state;
Step S2: stop the blower fan (9) with described evaporimeter (4) corresponding setting, and/or, stop the water circulation of carrying out the water circulation system of heat exchange with described condenser (2);
Step S3: after completing described step S2 second scheduled time, adjusts to defrosting aperture by the aperture of described orifice union (3), and described defrosting aperture is greater than described Trans-critical cycle co
2the circulatory system heats the aperture of the orifice union (3) under state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981977.0A CN105509377A (en) | 2015-12-22 | 2015-12-22 | Trans critical co2Circulating system, heat pump water heater and defrosting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981977.0A CN105509377A (en) | 2015-12-22 | 2015-12-22 | Trans critical co2Circulating system, heat pump water heater and defrosting method |
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|---|---|
| CN105509377A true CN105509377A (en) | 2016-04-20 |
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ID=55717545
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510981977.0A Pending CN105509377A (en) | 2015-12-22 | 2015-12-22 | Trans critical co2Circulating system, heat pump water heater and defrosting method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN107166794A (en) * | 2017-05-25 | 2017-09-15 | 王运举 | The energy-saving application of heat exchanger and compressor combination |
| CN107883574A (en) * | 2017-12-04 | 2018-04-06 | 广东纽恩泰新能源科技发展有限公司 | Using the air energy heat pump water heater of simultaneously pipe heat exchanger |
| CN107883575A (en) * | 2017-12-04 | 2018-04-06 | 广东纽恩泰新能源科技发展有限公司 | Air energy heat pump water heater |
| CN107933594A (en) * | 2017-12-18 | 2018-04-20 | 中车大连机车研究所有限公司 | One kind is based on CO2The trans critical cycle railway vehicle air conditioner system of refrigerant |
| CN108826724A (en) * | 2018-04-10 | 2018-11-16 | 珠海格力电器股份有限公司 | Refrigerating unit, refrigerating equipment and refrigerating unit control method |
| CN109282430A (en) * | 2018-10-09 | 2019-01-29 | 珠海格力电器股份有限公司 | Method for detecting and controlling defrosting of air conditioner |
| CN109631378A (en) * | 2018-10-24 | 2019-04-16 | 浙江中广电器股份有限公司 | CO2The heat-pump water heater and its control method of refrigerant Trans-critical cycle frequency conversion compression operation |
| CN110094900A (en) * | 2019-04-04 | 2019-08-06 | 珠海格力电器股份有限公司 | Heat pump system and control method and device thereof |
| CN111328247A (en) * | 2020-03-03 | 2020-06-23 | 北京百度网讯科技有限公司 | Phase change cooling system |
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| CN107883574A (en) * | 2017-12-04 | 2018-04-06 | 广东纽恩泰新能源科技发展有限公司 | Using the air energy heat pump water heater of simultaneously pipe heat exchanger |
| CN107883575A (en) * | 2017-12-04 | 2018-04-06 | 广东纽恩泰新能源科技发展有限公司 | Air energy heat pump water heater |
| CN107933594A (en) * | 2017-12-18 | 2018-04-20 | 中车大连机车研究所有限公司 | One kind is based on CO2The trans critical cycle railway vehicle air conditioner system of refrigerant |
| CN108826724A (en) * | 2018-04-10 | 2018-11-16 | 珠海格力电器股份有限公司 | Refrigerating unit, refrigerating equipment and refrigerating unit control method |
| CN109282430A (en) * | 2018-10-09 | 2019-01-29 | 珠海格力电器股份有限公司 | Method for detecting and controlling defrosting of air conditioner |
| CN109282430B (en) * | 2018-10-09 | 2020-04-07 | 珠海格力电器股份有限公司 | Method for detecting and controlling defrosting of air conditioner |
| CN109631378A (en) * | 2018-10-24 | 2019-04-16 | 浙江中广电器股份有限公司 | CO2The heat-pump water heater and its control method of refrigerant Trans-critical cycle frequency conversion compression operation |
| CN109631378B (en) * | 2018-10-24 | 2023-12-12 | 浙江中广电器集团股份有限公司 | CO 2 Heat pump water heating device operated by refrigerant transcritical variable frequency compression and control method thereof |
| CN110094900A (en) * | 2019-04-04 | 2019-08-06 | 珠海格力电器股份有限公司 | Heat pump system and control method and device thereof |
| CN111328247A (en) * | 2020-03-03 | 2020-06-23 | 北京百度网讯科技有限公司 | Phase change cooling system |
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