CN102141281A - Hot-start control method of air conditioner - Google Patents
Hot-start control method of air conditioner Download PDFInfo
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- CN102141281A CN102141281A CN2010103010134A CN201010301013A CN102141281A CN 102141281 A CN102141281 A CN 102141281A CN 2010103010134 A CN2010103010134 A CN 2010103010134A CN 201010301013 A CN201010301013 A CN 201010301013A CN 102141281 A CN102141281 A CN 102141281A
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- conditioner
- coolant piping
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Abstract
The invention discloses a hot-start control method of an air conditioner, comprising the following steps that: when the air conditioner is converted to heating operation from cooling operation, a four-way valve reverses the circulation direction of coolant; the air conditioner enters to a hot-start mode to preheat an indoor coolant piping; the compressor and an outdoor fan work but an indoor coolant fan does not work; after the air conditioner works a period of time, whether the temperature of the indoor coolant piping is raised or not is determined; if the temperature of the indoor coolant piping is raised, the hot-start mode is relieved, and the air conditioner enters normal operation of heating; and if the temperature of the indoor coolant piping is not raised, the four-way valve is promoted to break down. The control method disclosed by the invention enables a user to know the work condition of the four-way valve in the air conditioner in time, thereby maintaining and replacing the four-way valve in time and avoiding excessive ice frozen on the indoor heat exchanger.
Description
Technical field
The present invention relates to the technical field of air-conditioner, be specifically a kind of in the thermal starting pattern that air-conditioner heats to the judgement that heats up of indoor coolant piping, thereby in time find the fault of cross valve, in time the inboard thermal starting control method of freezing and getting rid of the air-conditioner of condensed water of decontamination chamber.
Background technology
In general, air-conditioner is: evaporate in summer → compress → kind of refrigeration cycle of the sequential loop of condensation → expansion, change cross valve in the winter time, carry out heating circulation, indoor temperature is maintained refrigeration or heating on user's desired level with the reverse heat pump of kind of refrigeration cycle.Air-conditioner has both refrigeration or heat-production functions usually, changes into clean air after suction chamber internal contamination air filters again to the air-cleaning function of indoor discharge, sucks humid air and changes into behind the dry air again to the dehumidification function of indoor discharge etc.
Fig. 1 is the structural representation of air-conditioner in the prior art.
As shown in Figure 1, indoor heat converter 12 is installed in indoor suction inlet 14 rears that are positioned at air conditioner room unit 10 fronts.So the conduit 20 that the inside of indoor heat converter 12 has refrigerant to flow is by refrigerant that flows at conduit 20 and the temperature of adjusting air conditioning space 1 from the process of the heat exchange between the room air of indoor suction inlet 14 suctions.That is, air-conditioner, in cooling operation, the low temperature refrigerant and the room air that flow at indoor heat converter 12 carry out heat exchange, reduce the temperature in air conditioning space 1; When heating running, the high temperature refrigerant and the room air that flow at indoor heat converter 12 carry out heat exchange, improve the temperature in air conditioning space 1.
In Fig. 1, drawing reference numeral " 16 " is an indoor fan, and " 35 " are outdoor suction inlets, and " 37 " are outdoor fans.
The following describes the refrigerant circulation of air-conditioner when freezing or heat running.
The situation of air-conditioner cooling operation at first is described.
The HTHP refrigerant of discharging from compressor 34 is according to 36 li of the effect inflow outdoor heat exchangers of cross valve 32.The HTHP refrigerant of inflow outdoor heat exchanger 36 carries out heat exchange with the outdoor air that flows into 30 li of off-premises stations and is condensed into liquid refrigerants, becomes the low-temp low-pressure refrigerant then in the process by expansion gear 38.Then, the low-temp low-pressure refrigerant is 12 li of inflow indoor heat exchangers again, and carry out heat exchange with the room air that flows into indoor set 10, flow into 34 li on compressor after reducing indoor air temperature.Therefore, in the time of cooling operation, refrigerant is recycle compressor 34 → outdoor heat converter 36 → expansion gear 38 → indoor heat converter 12 → compressor 34 repeatedly, and the temperature in air conditioning space 1 is reduced to design temperature.
The following describes the situation of air conditioner heat-production running.
The HTHP refrigerant of discharging from compressor 34 is according to 12 li of the effect inflow indoor heat exchangers of cross valve 32.The HTHP refrigerant that inflow indoor heat exchanger is 12 li carries out heat exchange with the room air that flows into 10 li of indoor sets, and improves the temperature of room air.Then, become the low-temp low-pressure gas coolant when flowing through expansion gear 38, continue then to flow into 34 li on compressors through outdoor heat converter 36 backs through the refrigerant of indoor heat converter 12.Therefore, when heating running, refrigerant is recycle compressor 34 → indoor heat converter 12 → expansion gear 38 → outdoor heat converter 36 → compressor 34 repeatedly, and the temperature in air conditioning space 1 is brought up to design temperature.
The refrigeration of air-conditioner and the refrigerant endless form that heats are realized by commutation in the cross valve, change refrigerant by cross valve and flow to, thereby make indoor heat converter and outdoor heat converter exchange evaporation and condensation function.
Fig. 2 is the thermal starting control method schematic diagram of the air-conditioner of prior art.
As shown in Figure 2, the thermal starting control method of air-conditioner may further comprise the steps: heat when running when air-conditioner is converted to by cooling operation, cross valve carries out the commutation of refrigerant circulation; Air-conditioner enters the thermal starting pattern, and indoor coolant piping is carried out preheating; Compressor operating, outdoor fan work and indoor fan is not worked; If cross valve breaks down, the flow direction of refrigerant in coolant piping in time do not changed, then indoor heat converter still is in the operational mode of evaporimeter, indoor still is refrigerating state, because indoor fan is in halted state in the thermal starting pattern, condensed water on the indoor heat converter can frozenly be ice, can be long-pending more thick more as the ice sheet on the untimely discovery indoor heat converter, ice sheet can melt again and is water after shutdown, cause a large amount of ponding of drip tray, cause ponding excessive easily, for the user makes troubles.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of in the thermal starting pattern that air-conditioner heats to the judgement that heats up of indoor coolant piping, thereby in time find the fault of cross valve, in time the inboard thermal starting control method of freezing and getting rid of the air-conditioner of condensed water of decontamination chamber.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The thermal starting control method of air-conditioner of the present invention may further comprise the steps: heat when running when air-conditioner is converted to by cooling operation, cross valve carries out the commutation of refrigerant circulation; Air-conditioner enters the thermal starting pattern, and indoor coolant piping is carried out preheating; Compressor operating, outdoor fan work and indoor fan is not worked; After running a period of time, judge whether indoor coolant piping temperature rises; If indoor coolant piping temperature rises, remove the thermal starting pattern, air-conditioner enters the normal operation that heats; If the temperature of indoor coolant piping does not rise, the prompting cross valve breaks down.
When the temperature of thermal starting a period of time and indoor coolant piping does not rise, indoor fan and draining pump operation, compressor and outdoor fan are closed; After removing the ice and the water in the drip tray on the indoor heat converter, air-conditioner is shut down, and compressor, indoor fan, outdoor fan and draining pump all shut down, and continues the prompting cross valve and break down.
The controller of air-conditioner reports an error simultaneously by sound and image.
Advantage and good effect that the present invention has are:
In the thermal starting control method of air-conditioner of the present invention, when air-conditioner is in the thermal starting pattern by measuring chamber in the temperature of coolant piping in a period of time whether raise and judge whether cross valve fault has taken place, if the temperature of indoor coolant piping after air-conditioner thermal starting a period of time significantly do not raise or reduces on the contrary, fault has taken place in the cross valve that then can conclude air-conditioner, the flow direction of refrigerant in pipe arrangement do not change, and indoor heat converter is in fact also playing the effect of refrigeration.Control part or the remote controller by air-conditioner gave a warning simultaneously and reported an error this moment, remind user's air-conditioner to break down, can't operate as normal, the compressor and the outdoor fan of air-conditioner inside quit work, indoor fan begins to rotate simultaneously, carries out heat exchange by the ice that condenses on air and the indoor heat converter, and ice sheet is melted, the draining pump synchronous working is discharged to the water after melting in the drip tray outdoor, and condensed water overflows in the drip tray to avoid.The air-conditioning shutdown after operation a period of time of indoor fan and draining pump continues to report an error.Control method of the present invention can allow the user in time learn the working condition of the inner cross valve of air-conditioner, thereby can in time keep in repair and change, and avoids too much freezing on the indoor heat converter.
Description of drawings
Fig. 1 is the structural representation of air-conditioner in the prior art;
Fig. 2 is the schematic diagram of thermal starting control method of the air-conditioner of prior art;
Fig. 3 is the schematic diagram of the thermal starting control method of air-conditioner of the present invention.
The specific embodiment
It is following that the present invention will be described in detail with reference to drawings and Examples.
Fig. 3 is the operation schematic diagram of the thermal starting control method of air-conditioner of the present invention.
During the air conditioner heat-production running, in the effect inflow indoor heat exchanger of HTHP refrigerant according to cross valve of compressor discharge.HTHP refrigerant in the inflow indoor heat exchanger carries out heat exchange with the room air that flows in the indoor set, and improves the temperature of room air.Then, become the low-temp low-pressure gas coolant when flowing through expansion gear, continue then through flowing in the compressor behind the outdoor heat converter through the refrigerant of indoor heat converter.Therefore, when heating running, refrigerant is recycle compressor → indoor heat converter → expansion gear → outdoor heat converter → compressor repeatedly, and the temperature in air conditioning space is brought up to design temperature.Need carry out thermal starting when air-conditioner is converted to heating mode by refrigeration mode to carry out preheating for indoor heat converter.
As shown in Figure 3, the thermal starting control method of air-conditioner of the present invention, may further comprise the steps: heat when running when air-conditioner is converted to by cooling operation, cross valve opens and closes conversion, carry out the commutation of refrigerant circulation by cross valve, be converted to heating mode from refrigeration mode, so that make indoor heat converter play the effect of condenser, and outdoor heat converter is converted to the effect of evaporimeter; Air-conditioner enters the thermal starting pattern, and indoor coolant piping is carried out preheating; In the thermal starting pattern, the compressor operating compression refrigerant circulates, and outdoor fan work raises the refrigerant temperature in the circulation, and indoor fan is not worked; Cross valve might break down in heating operation process, and this moment can be after air-conditioner turns round a period of time, the temperature of coolant piping in the measuring chamber, and judge whether relative its initial temperature of temperature of indoor coolant piping has rising; If indoor coolant piping temperature rises to a certain degree, then remove the thermal starting pattern, air-conditioner enters the normal operation that heats; If the temperature of indoor coolant piping does not rise, this moment, cross valve can then not point out cross valve to break down with the circular flow of refrigerant to changing, and reminded the user that cross valve is keeped in repair.The controller of air-conditioner reports an error simultaneously by sound and image, can notice the irregular operating state of air-conditioner in the hope of the user.
When the temperature of thermal starting a period of time and indoor coolant piping does not rise, can conclude that cross valve can't operate as normal, but should form attached to its surperficial ice sheet on the indoor heat converter this moment, need handle the ice on the indoor heat converter.Can make indoor fan begin rotation this moment, carry out heat exchange by indoor air and ice sheet, and ice sheet is melted to water drops in the drip tray, draining pump brings into operation simultaneously, is discharged to the water in the drip tray outdoor.Compressor and outdoor fan are closed simultaneously in this process; When indoor fan and draining pump operation a period of time and after removing ice and the water in the drip tray on the indoor heat converter, air-conditioner is shut down, and compressor, indoor fan, outdoor fan and draining pump all shut down, and continue the prompting cross valve and break down.
In the thermal starting control method of air-conditioner of the present invention, when air-conditioner is in the thermal starting pattern by measuring chamber in the temperature of coolant piping in a period of time whether raise and judge whether cross valve fault has taken place, if the temperature of indoor coolant piping after air-conditioner thermal starting a period of time significantly do not raise or reduces on the contrary, fault has taken place in the cross valve that then can conclude air-conditioner, the flow direction of refrigerant in pipe arrangement do not change, and indoor heat converter is in fact also playing the effect of refrigeration.Control part or the remote controller by air-conditioner gave a warning simultaneously and reported an error this moment, remind user's air-conditioner to break down, can't operate as normal, the compressor and the outdoor fan of air-conditioner inside quit work, indoor fan begins to rotate simultaneously, carries out heat exchange by the ice that condenses on air and the indoor heat converter, and ice sheet is melted, the draining pump synchronous working is discharged to the water after melting in the drip tray outdoor, and condensed water overflows in the drip tray to avoid.The air-conditioning shutdown after operation a period of time of indoor fan and draining pump continues to report an error.Control method of the present invention can allow the user in time learn the working condition of the inner cross valve of air-conditioner, thereby can in time keep in repair and change, and avoids too much freezing on the indoor heat converter.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (3)
1. the thermal starting control method of an air-conditioner may further comprise the steps: when air-conditioner is converted to when heating running by cooling operation, cross valve carries out the commutation of refrigerant circulation; Air-conditioner enters the thermal starting pattern, and indoor coolant piping is carried out preheating; Compressor operating, outdoor fan work and indoor fan is not worked; After running a period of time, judge whether indoor coolant piping temperature rises; If indoor coolant piping temperature rises, remove the thermal starting pattern, air-conditioner enters the normal operation that heats; If the temperature of indoor coolant piping does not rise, the prompting cross valve breaks down.
2. the thermal starting control method of air-conditioner according to claim 1 is characterized in that: when the temperature of thermal starting a period of time and indoor coolant piping does not rise, and indoor fan and draining pump operation, compressor and outdoor fan are closed; After removing the ice and the water in the drip tray on the indoor heat converter, air-conditioner is shut down, and compressor, indoor fan, outdoor fan and draining pump all shut down, and continues the prompting cross valve and break down.
3. the thermal starting control method of air-conditioner according to claim 2, it is characterized in that: the controller of air-conditioner reports an error simultaneously by sound and image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103010134A CN102141281A (en) | 2010-02-01 | 2010-02-01 | Hot-start control method of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103010134A CN102141281A (en) | 2010-02-01 | 2010-02-01 | Hot-start control method of air conditioner |
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| CN102141281A true CN102141281A (en) | 2011-08-03 |
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| CN2010103010134A Pending CN102141281A (en) | 2010-02-01 | 2010-02-01 | Hot-start control method of air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352489A (en) * | 2016-09-29 | 2017-01-25 | 广东志高暖通设备股份有限公司 | Air conditioner fault detecting method and system |
| CN107490221A (en) * | 2017-07-20 | 2017-12-19 | 珠海格力电器股份有限公司 | Four-way valve fault diagnosis method, heat pump system control method and air source heat pump system |
| CN109489177A (en) * | 2018-10-16 | 2019-03-19 | 珠海格力电器股份有限公司 | Air conditioner processing method and device and air conditioner |
| CN110044009A (en) * | 2019-04-25 | 2019-07-23 | 宁波奥克斯电气股份有限公司 | A kind of four-way valve switch failure detection method, device and air conditioner |
-
2010
- 2010-02-01 CN CN2010103010134A patent/CN102141281A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352489A (en) * | 2016-09-29 | 2017-01-25 | 广东志高暖通设备股份有限公司 | Air conditioner fault detecting method and system |
| CN107490221A (en) * | 2017-07-20 | 2017-12-19 | 珠海格力电器股份有限公司 | Four-way valve fault diagnosis method, heat pump system control method and air source heat pump system |
| CN109489177A (en) * | 2018-10-16 | 2019-03-19 | 珠海格力电器股份有限公司 | Air conditioner processing method and device and air conditioner |
| CN110044009A (en) * | 2019-04-25 | 2019-07-23 | 宁波奥克斯电气股份有限公司 | A kind of four-way valve switch failure detection method, device and air conditioner |
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Application publication date: 20110803 |