CN105783356A - Air conditioner defrosting system, air conditioner and air conditioner defrosting and heat recovery method - Google Patents
Air conditioner defrosting system, air conditioner and air conditioner defrosting and heat recovery method Download PDFInfo
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- CN105783356A CN105783356A CN201610195375.7A CN201610195375A CN105783356A CN 105783356 A CN105783356 A CN 105783356A CN 201610195375 A CN201610195375 A CN 201610195375A CN 105783356 A CN105783356 A CN 105783356A
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- water
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- conditioner
- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Abstract
The invention relates to the technical field of air conditioners, and provides an air conditioner defrosting system, an air conditioner, and an air conditioner defrosting and heat recovery method. The air conditioner defrosting system comprises a heat exchange water pipeline, a water pump, a domestic hot water tank, a heat storage water tank and a controller; the domestic hot water tank is connected with a water inlet of the heat exchange water pipeline through a first switch valve, and the heat storage water tank is connected with a water outlet of the heat exchange water pipeline through a second switch valve; the heat exchange water pipeline, the heat storage water tank, the domestic hot water tank and the water pump are connected to form a first water circulation passage; and the controller is used for monitoring the running state of the air conditioner, controlling the water pump to be started and stopped according to the running state and controlling the first switch valve and the second switch valve to be on and off. According to the air conditioner defrosting system, when the air conditioner carries out low-temperature heating, the system can assist in defrosting, an air conditioner outdoor heat exchanger can rapidly and thoroughly achieve defrosting, and heating performance of the air conditioner is improved.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to a kind of air-conditioner defrosting system, air-conditioner, air-conditioner defrosting and heat recovery method.
Background technology
Under winter low temperature wet environment, air conditioner heat-production can cause outdoor heat exchanger frosting, makes outdoor heat exchanger exchange capability of heat decay, and user has the experience of air conditioner heat-production weak effect.Traditional defrosting method is the switching being controlled cross valve by the temperature of sensing chamber's external heat exchanger, makes air conditioner heat-production be converted into refrigeration, and outdoor heat exchange actuator temperature raises, and makes the frost on outdoor heat exchanger fin melt.It is unclean that the method would be likely to occur defrost, the problem of defrost time length.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention be exactly provide a kind of can thoroughly defrost and shorten the air-conditioner defrosting system of defrost time, there is the air-conditioner of this air-conditioner defrosting system and by this air-conditioner defrosting system method of carrying out air-conditioner defrosting and recuperation of heat.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of air-conditioner defrosting system, including heat-exchanging water pipeline, water pump, domestic hot-water's water tank, hot water storage tank and controller；Described domestic hot-water's water tank is connected by the water inlet of the first switch valve and described heat-exchanging water pipeline, described hot water storage tank is connected by the outlet of second switch valve and described heat-exchanging water pipeline, and described heat-exchanging water pipeline, hot water storage tank, domestic hot-water's water tank and water pump connect formation the first water circulation path；Described controller is for monitoring the running status of air-conditioner, and controls the start and stop of described water pump and the break-make of described first switch valve, second switch valve according to running status.
Preferably, the refrigerant passage in described heat-exchanging water pipeline and described outdoor heat exchanger is arranged in the fin of described outdoor heat exchanger parallel.
Preferably, described heat-exchanging water pipeline is arranged on inside described refrigerant passage.
Preferably, described hot water pipeline, water pump and hot water storage tank connect formation the second water circulation path；Described second water circulation path connects water inlet by the 3rd switch valve；Described hot water storage tank is provided with the temperature sensor for surveying water temperature and for measuring the level sensor of water level；Described controller receives the data of described temperature sensor and level sensor, and controls the start and stop of described water pump and the break-make of the first switch valve according to the described data received and the conditioners running conditions monitored.
Preferably, described first switch valve, second switch valve and the 3rd switch valve are electromagnetic valve.
The present invention also provides for a kind of air-conditioner, including above-mentioned air-conditioner defrosting system.
The present invention also provides for a kind of method carrying out defrosting according to above-mentioned air-conditioner defrosting system, it is characterised in that comprise the following steps:
S1, unlatching air-conditioner heat, when monitoring control devices to air-conditioner enters defrost state, controller controls described water pump, the first switch valve is connected with second switch valve so that the hot water in described domestic hot-water's case flows to described heat-exchanging water pipeline, until outdoor heat exchanger completes defrost；
After S2, monitoring control devices complete defrost to outdoor heat exchanger, control described first switch valve to disconnect, so that the water in heat-exchanging water pipeline flows in described hot water storage tank in described outdoor heat exchanger, until the water in described heat-exchanging water pipeline all flows in described hot water storage tank；
S3, monitoring control devices all flow into after in described thermophore to the water in described heat-exchanging water pipeline, control described second switch valve and disconnect.
The present invention also provides for a kind of method carrying out recuperation of heat according to above-mentioned air-conditioner defrosting system, comprises the following steps:
S1, opening air-conditioner and freeze, monitoring control devices is to air-conditioner entrance refrigerating state, and controls described water pump and pump into water in described heat-exchanging water pipeline；
S2, temperature sensor and level sensor measure temperature and the water level of described hot water storage tank respectively, and the data of the temperature recorded and water level are sent to described controller；
According to the data of the water level received, S3, described controller judge whether water level reaches setting value: when waterlevel data reaches setting value, and described 3rd switch valve disconnects, and judges whether the temperature data received reaches design temperature；If temperature data has reached setting value, stop water pump, otherwise start water pump；
When described waterlevel data is not reaching to setting value, enter S4；
S4, controller start described water pump, and judge whether temperature data reaches design temperature；If temperature data has reached setting value, connect described 3rd switch valve, otherwise disconnect described 3rd switch valve.
(3) beneficial effect
Technical scheme has the advantage that the air-conditioner defrosting system of the present invention, including heat-exchanging water pipeline, water pump, domestic hot-water's water tank, hot water storage tank and controller；Described domestic hot-water's water tank is connected by the water inlet of the first switch valve and described heat-exchanging water pipeline, described hot water storage tank is connected by the outlet of second switch valve and described heat-exchanging water pipeline, and described heat-exchanging water pipeline, hot water storage tank, domestic hot-water's water tank and water pump connect formation the first water circulation path；Described controller is for monitoring the running status of air-conditioner, and controls the start and stop of described water pump and the break-make of described first switch valve, second switch valve according to running status.This air-conditioner defrosting system can assist defrost when air-conditioner low-temperature heating so that air conditioner chamber's external heat exchanger quickly and realizes defrost thoroughly, and then improves the heating performance of air-conditioner.
In the preferred version of the present invention, hot water pipeline, water pump and hot water storage tank connect formation the second water circulation path, by this second water circulation path can and refrigerant passage between carry out heat exchange, and when air conditioner refrigerating to outdoor heat exchanger in the heat of coolant reclaim, thus the effectively save energy.And scheme can improve the refrigeration of outdoor heat exchanger.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the air-conditioner defrosting system of the present embodiment；
Fig. 2 is the operation principle schematic diagram of the air-conditioner defrosting system of the present embodiment；
Fig. 3 is the front elevational schematic of the outdoor heat exchanger of the present embodiment；
Fig. 4 is the schematic side view of the outdoor heat exchanger of the present embodiment；
Fig. 5 is the structural relation schematic diagram of the refrigerant passage of the present embodiment and heat-exchanging water pipeline；
Fig. 6 is the structural representation of another outdoor heat exchanger of the present embodiment；
In figure: 1, outdoor heat exchanger；2, hot water storage tank；3, domestic hot-water's case；4, water out is used；5, the 3rd switch valve；6, second switch valve；7, the first switch valve；8, water pump；9, refrigerant passage；10, heat-exchanging water pipeline.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " are only for descriptive purposes, and it is not intended that indicate or hint relative importance.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Please participating in Fig. 1, the air-conditioner defrosting system of the present embodiment, including heat-exchanging water pipeline 10, water pump 8, domestic hot-water's water tank, hot water storage tank 2 and controller.Wherein, heat-exchanging water pipeline 10 is disposed in the outdoor in heat exchanger 1, such that it is able to carry out heat exchange with the refrigerant passage 9 in outdoor heat exchanger 1.Domestic hot-water's water tank is connected by the water inlet of the first switch valve 7 and described heat-exchanging water pipeline 10, thereby through domestic hot-water's water tank to provide in heat-exchanging water pipeline 10 can the hot water of defrost.Additionally, hot water storage tank 2 is connected by the outlet of second switch valve 6 and described heat-exchanging water pipeline 10, store so that the water after defrost can enter in hot water storage tank 2.
Further, described heat-exchanging water pipeline 10, hot water storage tank 2, domestic hot-water's water tank and water pump 8 connect formation the first water circulation path；By this first water circulation path, this air-conditioner defrosting system can assist defrost when air-conditioner low-temperature heating, the high-temperature-hot-water in domestic hot-water's water tank is made to flow to outdoor heat exchanger 1, so that air conditioner chamber's external heat exchanger 1 quickly and realizes defrost thoroughly, and then improve the heating performance of air-conditioner.
Wherein it is possible to arrange electric heating tube in domestic hot-water's case 3, the heating thereby through electric heating tube makes the water temperature in domestic hot-water's case 3 meet defrost requirement.
In the present embodiment, when air-conditioner is in general heating operation, the temperature of outdoor heat exchanger 1 is relatively low, bursting by freezing when being now prevent from having in outdoor heat exchanger 1 heat-exchanging water pipeline 10 wherein water, it is necessary to drained by the water in heat-exchanging water pipeline 10.Therefore between the water inlet of the outlet of hot water pipeline 10 and described hot water storage tank 2, it is provided with above-mentioned second switch valve 6；And it is provided with the first switch valve 7 between the outlet and the water inlet of described heat-exchanging water pipeline 10 of described domestic hot-water's case 3；The structural representation of the air-conditioner defrosting system obtained is please with further reference to Fig. 1.
Wherein, the first switch valve 7 and second switch valve 6 control break-make each through controller.
Specifically, described controller is for monitoring the running status of air-conditioner, and controls the start and stop of described water pump 8 and the break-make of described first switch valve 7, second switch valve 6 according to running status.
Specifically, the method that this air-conditioner defrosting system carries out defrosting is adopted to comprise the following steps:
S1, unlatching air-conditioner heat, when monitoring control devices to air-conditioner enters defrost state, controller controls described water pump 8, second switch valve 6 is connected with the first switch valve 7 so that the hot water in described domestic hot-water's case 3 flows to described heat-exchanging water pipeline 10, until outdoor heat exchanger 1 completes defrost；
After S2, monitoring control devices complete defrost to outdoor heat exchanger 1, control described first switch valve 7 to disconnect, so that the water in heat-exchanging water pipeline 10 flows in described hot water storage tank 2 in described outdoor heat exchanger 1, until the water in heat-exchanging water pipeline 10 all flows in described hot water storage tank 2 in described outdoor heat exchanger 1；
S3, monitoring control devices all flow into after in described thermophore to the water in described interior heat-exchanging water pipeline 10, control described second switch valve 6 and disconnect.
Wherein, S2 breaks the first switch valve 7 and is contemplated to after defrost completes, it is prevented that the water in domestic hot-water's case 3 enters further in the heat-exchanging water pipeline 10 in outdoor heat exchanger 1.And once the water in outdoor heat exchanger 1 is drained, namely when entering S3, now close second switch valve 6 and be possible to prevent again the aqueous reflux in hot water storage tank 2.
In the present embodiment, the concrete form that in outdoor heat exchanger 1, heat-exchanging water pipeline 10 is arranged is not restricted by.One of which situation, the structure of outdoor heat exchanger 1 refers to Fig. 3 and Fig. 4, refrigerant passage 9 in its heat-exchanging water pipeline 10 and described outdoor heat exchanger 1 is arranged in the fin of described outdoor heat exchanger 1 parallel, thus heat-exchanging water pipeline 10 and refrigerant passage 9 carry out heat exchange by fin.Wherein " heat-exchanging water pipeline 10 is arranged parallel with the refrigerant passage 9 in described outdoor heat exchanger 1 " to be not required for heat-exchanging water pipeline 10 parallel with refrigerant passage 9 or directly contact, as long as roughly the same both the guarantees of both bearing of trends have enough heat exchange spaces, please with further reference to Fig. 5.
Another kind of situation, outdoor heat exchanger 1 structure can change bushing type into, namely heat-exchanging water pipeline 10 is directly embedded in refrigerant passage 9, refers to Fig. 6.In this kind of situation, during air-conditioner refrigeration, the water of high temperature refrigerant and low temperature carries out heat exchange either directly through heat-exchanging water pipeline 10, thus its heat-exchange system is high.Further, owing to the heat exchange between coolant and air is not subject to the impact of heat-exchanging water pipeline 10, therefore it may further ensure that heat exchange efficiency.Wherein, it is preferable that heat-exchanging water pipeline 10 is copper pipe.This outdoor heat exchanger 1 is used for its effect when recuperation of heat or defrost all better, but compares its structure complexity with upper a kind of situation and be not easy to manufacture.
On this basis, the air-conditioner defrosting system of the present embodiment, its hot water pipeline, water pump 8 and hot water storage tank 2 connect formation the second water circulation path.Described second water circulation path connects water inlet by the 3rd switch valve 5.After water enters into the second peripheral passage, under the effect of water pump 8, water enters in heat-exchanging water pipeline 10.Now, owing to air-conditioner freezes, therefore outdoor heat exchanger 1 is as condenser, and refrigerant temperature therein raises, thus the temperature of refrigerant passage 9 also raises.The heat of coolant is reclaimed after carrying out heat exchange by refrigerant passage 9 and heat-exchanging water pipeline 10 by the second water circulation path, and the water after will heat up stores in hot water storage tank 2.
Described hot water storage tank 2 is provided with the temperature sensor for surveying water temperature and for measuring the level sensor of water level；Described controller receives the data of described temperature sensor and level sensor, and controls the start and stop of described water pump 8 and the break-make of the 3rd switch valve 5 according to the described data received and the conditioners running conditions monitored.
In the present embodiment, it is preferable that but necessarily the first switch valve 7, second switch valve 6 and the 3rd switch valve 5 are electromagnetic valve.
Specifically, carry out the method for recuperation of heat comprise the following steps according to this air-conditioner system that defrosts:
S1, opening air-conditioner and freeze, monitoring control devices is to air-conditioner entrance refrigerating state, and controls described water pump 8 and pump into water in described heat-exchanging water pipeline 10, so that heat-exchanging water pipeline 10 and outdoor heat exchanger 1 proceed by heat exchange；
S2, temperature sensor and level sensor measure temperature and the water level of described hot water storage tank 2 respectively, and the data of the temperature recorded and water level are sent to described controller；
According to the data of the water level received, S3, described controller judge whether water level reaches setting value: when waterlevel data reaches setting value, and described 3rd switch valve 5 disconnects, and judge whether the temperature data received reaches design temperature；If temperature data has reached setting value, stop water pump 8, otherwise start water pump 8；
When described waterlevel data is not reaching to setting value, enter S4；
S4, controller start described water pump 8, and judge whether temperature data reaches design temperature；If temperature data has reached setting value, connect described 3rd switch valve 5, otherwise disconnect described 3rd switch valve 5.
Wherein, in S1, it is have water in the second water circulation path that water pump 8 to pump into the premise of water in heat-exchanging water pipeline 10.If the second water circulation path does not initially have recirculated water, then in order to pump into water in heat-exchanging water pipeline 10, then obviously controller needs control the 3rd switch valve 5 to open；If the second water circulation path having enough water and heat-exchanging water pipeline 10 carry out heat exchange, then now can enter directly in S2.
Having part water after heat-exchanging water pipeline 10 carries out heat exchange and enters hot water storage tank 2, the temperature in hot water storage tank 2 and water level are monitored by the step being now necessary in S2, such that it is able to further the temperature in hot water storage tank 2 and water level are controlled.
Wherein, S3 middle water level sensor records waterlevel data and reaches setting value, now fills with water in hot water storage tank 2 and cannot inject water again in the second water circulation path, it is therefore desirable to controlling the 3rd switch valve 5 and disconnect.Equally, when hot water storage tank 2 and other container connect, level sensor records waterlevel data and reaches setting value and illustrate that now hot water storage tank 2 and the container being attached thereto all fill with.Such as, when hot water storage tank 2 and domestic hot-water's case 3 mentioned above being connected, level sensor records waterlevel data when reaching setting value, then hot water storage tank 2 and domestic hot-water's case 3 are all in full water state.
On the basis of the above, continue to adopt the water degree in temperature sensor measurement hot water storage tank 2, regulate the water temperature in hot water storage tank 2 in turn thereby through the start and stop controlling water pump 8.
If the water level in hot water storage tank 2 is not reaching to setting value, then hot water storage tank 2 can also inject water.So now can pass through the water temperature controlling in on-off valve regulation second water circulation path of the 3rd switch valve 5, and then when ensureing air-conditioner refrigeration, the water temperature being flowed through outdoor heat exchanger 1 by heat-exchanging water pipeline 10 maintains relatively low state, to improve the heat exchange efficiency of outdoor heat exchanger 1, improves refrigeration.Wherein, when the water temperature in hot water storage tank 2 has reached setting value, illustrate now to need to pass into cold water in the second water circulation path, to ensure the heat exchange efficiency of heat-exchanging water pipeline 10 in the second water circulation path, improve refrigeration.
It is of course also possible to be both not injected into water be also not turned on water pump 8 so that the water in hot water storage tank 2 maintains design temperature, but now also without way, the heat of coolant is reclaimed.
The air-conditioner defrosting system of the present embodiment, by carrying out heat exchange between heat-exchanging water pipeline 10 and refrigerant passage 9, it is possible to the heat of coolant in outdoor heat exchanger 1 is reclaimed, thus the effectively save energy.Additionally, carry out heat exchange by the heat-exchanging water pipeline 10 in the second water circulation path with outdoor heat exchanger 1, it is possible to improve the refrigeration of outdoor heat exchanger 1.
It is emphasized that in the present embodiment and by heat-exchanging water pipeline 10, the heat of outdoor heat exchanger 1 is directly reclaimed, its heat recovery rate is high, meets the requirement of energy-conserving and environment-protective.Further, this air-conditioner defrosting system, it is easily implemented and simple in construction low cost of manufacture.
Further, the water inlet of the outlet of hot water storage tank 2 with above-mentioned domestic hot-water's case 3 is connected.In this kind of situation, owing to the heat of recovery being directly used in the middle of heating domestic water, therefore improve the practicality of air-conditioner defrosting system in the program, and meet the requirement of energy-saving and emission-reduction.Wherein, hot water storage tank 2 and domestic hot-water's case 3 can be arranged with water out 4.
The present embodiment also provides for a kind of air-conditioner, including air-conditioner defrosting system mentioned above.
Embodiment of above is merely to illustrate the present invention, but not limitation of the present invention.Although the present invention being described in detail with reference to embodiment, it will be understood by those within the art that, technical scheme is carried out various combination, amendment or equivalent replacement, without departure from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention.
Claims (8)
1. an air-conditioner defrosting system, it is characterised in that include heat-exchanging water pipeline, water pump, domestic hot-water's water tank, hot water storage tank and controller；Described domestic hot-water's water tank is connected by the water inlet of the first switch valve and described heat-exchanging water pipeline, described hot water storage tank is connected by the outlet of second switch valve and described heat-exchanging water pipeline, and described heat-exchanging water pipeline, hot water storage tank, domestic hot-water's water tank and water pump connect formation the first water circulation path；Described controller is for monitoring the running status of air-conditioner, and controls the start and stop of described water pump and the break-make of described first switch valve, second switch valve according to running status.
2. air-conditioner according to claim 1 defrosting system, it is characterised in that the refrigerant passage in described heat-exchanging water pipeline and described outdoor heat exchanger is arranged in the fin of described outdoor heat exchanger parallel.
3. air-conditioner according to claim 1 defrosting system, it is characterised in that described heat-exchanging water pipeline is arranged on inside described refrigerant passage.
4. the air-conditioner defrosting system according to claims 1 to 3 any one, it is characterised in that described hot water pipeline, water pump and hot water storage tank connect formation the second water circulation path；Described second water circulation path connects water inlet by the 3rd switch valve；Described hot water storage tank is provided with the temperature sensor for surveying water temperature and for measuring the level sensor of water level；Described controller receives the data of described temperature sensor and level sensor, and controls the start and stop of described water pump and the break-make of the 3rd switch valve according to the described data received and the conditioners running conditions monitored.
5. air-conditioner according to claim 4 defrosting system, it is characterised in that described first switch valve, second switch valve and the 3rd switch valve are electromagnetic valve.
6. an air-conditioner, it is characterised in that include the air-conditioner defrosting system described in claim 1 to 5 any one.
7. the method that air-conditioner as claimed in any of claims 1 to 5 defrosting system carries out defrosting, it is characterised in that comprise the following steps:
S1, unlatching air-conditioner heat, when monitoring control devices to air-conditioner enters defrost state, controller controls described water pump, the first switch valve is connected with second switch valve so that the hot water in described domestic hot-water's case flows to described heat-exchanging water pipeline, until outdoor heat exchanger completes defrost；
After S2, monitoring control devices complete defrost to outdoor heat exchanger, control described first switch valve to disconnect, so that the water in heat-exchanging water pipeline flows in described hot water storage tank in described outdoor heat exchanger, until the water in described heat-exchanging water pipeline all flows in described hot water storage tank；
S3, monitoring control devices all flow into after in described thermophore to the water in described heat-exchanging water pipeline, control described second switch valve and disconnect.
8. the method that the air-conditioner defrosting system according to claim 4 or 5 carries out recuperation of heat, it is characterised in that comprise the following steps:
S1, opening air-conditioner and freeze, monitoring control devices is to air-conditioner entrance refrigerating state, and controls described water pump and pump into water in described heat-exchanging water pipeline；
S2, temperature sensor and level sensor measure temperature and the water level of described hot water storage tank respectively, and the data of the temperature recorded and water level are sent to described controller；
According to the data of the water level received, S3, described controller judge whether water level reaches setting value: when waterlevel data reaches setting value, and described 3rd switch valve disconnects, and judges whether the temperature data received reaches design temperature；If temperature data has reached setting value, stop water pump, otherwise start water pump；
When described waterlevel data is not reaching to setting value, enter S4；
S4, controller start described water pump, and judge whether temperature data reaches design temperature；If temperature data has reached setting value, connect described 3rd switch valve, otherwise disconnect described 3rd switch valve.
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| CN201610195375.7A CN105783356B (en) | 2016-03-29 | 2016-03-29 | Air conditioner is except defrosting system, air conditioner, air conditioner defrosting and heat recovery method |
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| CN201610195375.7A CN105783356B (en) | 2016-03-29 | 2016-03-29 | Air conditioner is except defrosting system, air conditioner, air conditioner defrosting and heat recovery method |
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| CN105783356B CN105783356B (en) | 2019-03-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101327A (en) * | 2017-04-21 | 2017-08-29 | 青岛海尔空调电子有限公司 | Air-conditioner defrosting control method and device and the air conditioner comprising the device |
| WO2020098302A1 (en) * | 2018-11-16 | 2020-05-22 | 青岛海尔空调电子有限公司 | Defrosting system, defrosting method and air conditioner |
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| WO2020098302A1 (en) * | 2018-11-16 | 2020-05-22 | 青岛海尔空调电子有限公司 | Defrosting system, defrosting method and air conditioner |
| EP3882531A4 (en) * | 2018-11-16 | 2022-04-06 | Qingdao Haier Air-Conditioning Electronic Co., Ltd | Defrosting system, defrosting method and air conditioner |
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