CN110779247A - Anti-frosting device, control method, air conditioner and storage medium - Google Patents
Anti-frosting device, control method, air conditioner and storage medium Download PDFInfo
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- CN110779247A CN110779247A CN201911196516.7A CN201911196516A CN110779247A CN 110779247 A CN110779247 A CN 110779247A CN 201911196516 A CN201911196516 A CN 201911196516A CN 110779247 A CN110779247 A CN 110779247A
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- heat exchanger
- frosting
- outdoor heat
- air
- control valve
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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
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The invention provides an anti-frosting device, a control method, an air conditioner and a storage medium, and relates to the technical field of air conditioners. The invention relates to an anti-frosting device, which comprises a circulating loop formed by sequentially connecting a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, and also comprises an outer casing, a gas transmission pipeline and a gas injection pipe; the outer casing is used for coating the compressor, the gas injection pipe is arranged on the outdoor heat exchanger, and two ends of the gas transmission pipeline are respectively communicated with the outer casing and the gas injection pipe. According to the technical scheme, the outer casing is used for collecting the waste heat of the compressor, the waste heat is transmitted through the gas transmission pipeline and is sprayed onto the outdoor heat exchanger from the gas injection pipe, so that defrosting of the outdoor heat exchanger is realized or frosting is delayed, energy is saved, the environment is protected, and normal indoor heat supply is met.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an anti-frosting device, a control method, an air conditioner and a storage medium.
Background
When the air conditioner is used for heating in winter, the heat exchanger of the outdoor unit is easy to frost, so that the air flow is reduced, the efficiency of the heat exchanger of the outdoor unit is reduced, the heating capacity of the air conditioner is reduced, and customer complaints are easy to cause. The conventional air conditioner delays the frosting of an outdoor unit heat exchanger and accelerates the frosting by adopting electric heating defrosting or completing the conversion from heating to a refrigerating mode through a four-way reversing valve, but the electric heating defrosting mode can increase the power consumption, and the conversion from heating to the refrigerating mode through the four-way reversing valve can cause the indoor unit to blow cold air, so that the conventional defrosting mode is not beneficial to the improvement of the overall performance of the air conditioner.
Disclosure of Invention
The invention solves the problem that the existing defrosting mode is not beneficial to improving the performance of the air conditioner.
In order to solve the problems, the invention provides an anti-frosting device which comprises a circulating loop formed by sequentially connecting a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, and further comprises an outer casing, a gas transmission pipeline and a gas injection pipe; the outer casing is used for coating the compressor, the gas injection pipe is arranged on the outdoor heat exchanger, and two ends of the gas transmission pipeline are respectively communicated with the outer casing and the gas injection pipe.
The anti-frosting device provided by the invention has the advantages that the waste heat of the compressor is collected through the outer casing, is transmitted through the gas transmission pipeline and is sprayed onto the outdoor heat exchanger from the gas injection pipe, so that the defrosting of the outdoor heat exchanger is realized or the frosting is delayed, the energy is saved, the environment is protected, and the normal indoor heat supply is met.
Furthermore, the outer wall of the gas injection pipe is provided with a gas injection hole, and the gas injection direction of the gas injection hole is parallel to the fins of the outdoor heat exchanger.
According to the anti-frosting device, the air injection direction of the air injection holes is parallel to the fins of the outdoor heat exchanger, so that the air injection holes can inject hot air in the vertical direction, defrosting or frosting delaying of the outdoor heat exchanger is realized, the heat exchange efficiency of the outdoor heat exchanger is guaranteed, and the indoor heating capacity is guaranteed.
Furthermore, a plurality of the gas injection holes are formed in the outer wall of the gas injection pipe.
According to the anti-frosting device, the plurality of air injection holes are formed in the outer wall of the air injection pipe, so that the defrosting effect or the frosting delaying effect of the outdoor heat exchanger is effectively enhanced, the heat exchange efficiency of the outdoor heat exchanger is guaranteed, and the indoor heating capacity is guaranteed.
Further, the frost prevention device also comprises a fastener, and the gas ejector pipe is connected with the outdoor heat exchanger through the fastener.
According to the anti-frosting device, the air injection pipe is arranged on the outdoor heat exchanger through the fastener, so that hot air injected in the air injection hole can cover the heat exchange pipe to the maximum extent, defrosting of the outdoor heat exchanger is effectively achieved or frosting is delayed, and the heat exchange efficiency of the outdoor heat exchanger and the indoor heating capacity are guaranteed.
Further, the gas ejector pipe is fixed on the heat exchange pipe of the outdoor heat exchanger through the fastener.
According to the anti-frosting device, the air injection pipe is fixed on the heat exchange pipe through the fastener, so that hot air injected in the air injection hole can cover the heat exchange pipe to a great extent, defrosting of the outdoor heat exchanger is effectively achieved or frosting is delayed, and the heat exchange efficiency of the outdoor heat exchanger and the indoor heating capacity are guaranteed.
Furthermore, the upper outer wall and the lower outer wall of the gas ejector pipe are provided with the gas ejecting holes, and the gas ejecting holes on the upper outer wall and the gas ejecting holes on the lower outer wall are distributed in a staggered mode.
According to the anti-frosting device, the air injection holes in the upper outer wall and the air injection holes in the lower outer wall are distributed in a staggered mode, so that the heat exchange tubes in the upper direction and the lower direction of the air injection tubes are effectively heated, the defrosting or the delaying of the frosting of the outdoor heat exchanger is effectively realized, and the heat exchange efficiency and the indoor heating capacity of the outdoor heat exchanger are guaranteed.
Further, the ratio of the distance from the gas injection pipe to the top end of the outdoor heat exchanger to the height of the outdoor heat exchanger ranges from 2/3 to 3/4.
According to the anti-frosting device, the ratio range of the distance from the air injection pipe to the top end of the outdoor heat exchanger to the height of the outdoor heat exchanger is 2/3-3/4, so that hot air can effectively heat the heat exchange pipe below the air injection pipe, the hot air can cover the heat exchange pipe to the maximum extent, defrosting or frosting delaying of the outdoor heat exchanger is effectively achieved, and the heat exchange efficiency of the outdoor heat exchanger and the indoor heating capacity are guaranteed.
Further, the air injection pipe is arranged on one side, far away from the outdoor fan, of the outdoor heat exchanger.
According to the anti-frosting device, the air injection pipe is arranged on one side of the outdoor heat exchanger, which is far away from the outdoor fan, so that hot air ejected by the air injection hole is effectively prevented from being taken away by the outdoor fan, and a large amount of moisture is effectively prevented from being carried in the air blown out by the fan, therefore, the defrosting of the outdoor heat exchanger is effectively realized or the frosting is delayed, and the heat exchange efficiency and the indoor heating capacity of the outdoor heat exchanger are ensured.
Further, the frost prevention device further comprises a first control valve, the gas transmission pipeline comprises a main pipe and a branch pipe, the main pipe is used for communicating the outer casing with the gas injection pipe, the branch pipe is communicated with the main pipe, and the first control valve is arranged on the branch pipe.
According to the anti-frosting device, the first control valve arranged on the branch pipe is used for timely discharging the waste heat of the compressor when the compressor needs to dissipate heat, so that the temperature of the compressor is reduced, and the compressor is effectively protected.
Further, the anti-frosting device further comprises a second control valve, and the second control valve is arranged on the main pipe and located between the air injection pipe and the branch pipe.
According to the anti-frosting device, the second control valve arranged between the air injection pipe and the branch pipe is used for realizing the transmission process of the waste heat of the compressor to the outdoor heat exchanger in the heating mode, defrosting or delaying frosting of the outdoor heat exchanger is realized, and the heat exchange efficiency and the indoor heating capacity of the outdoor heat exchanger are guaranteed.
Further, the anti-frosting device further comprises an air pump, wherein the air pump is arranged on the main pipe and is positioned between the compressor and the branch pipe.
According to the anti-frosting device, the air pump positioned between the compressor and the branch pipe is arranged, the defrosting of the outdoor heat exchanger is effectively realized or the frosting is delayed in the heating mode, the heat exchange efficiency and the indoor heating capacity of the outdoor heat exchanger are guaranteed, the forced convection heat exchange of the compressor is realized in the non-heating mode, and the temperature of the compressor is effectively reduced to protect the compressor.
The invention also provides an anti-frosting control method applied to the anti-frosting device, which comprises the steps of obtaining an air conditioner operation mode; and controlling the conduction states of a first control valve, a second control valve and an air pump of the anti-frosting device according to the air conditioner running mode so as to control the flow direction of waste heat from the compressor to the outdoor heat exchanger.
According to the anti-frosting control method, the valve is controlled to be conducted according to the air conditioner operation mode to control the residual heat flow direction of the compressor, defrosting of the outdoor heat exchanger or frosting delay is achieved in the heating mode, and the temperature of the compressor is reduced in the non-heating mode to protect the compressor.
Further, the controlling the conduction states of the first control valve, the second control valve and the air pump of the anti-frosting device according to the air conditioner operation mode specifically includes: when the air conditioner is started to operate for a preset time, acquiring an air conditioner operation mode; when the air conditioner running mode is a heating mode, controlling the first control valve to be closed and controlling the second control valve and the air pump to be opened; when the air conditioner running mode is a non-heating mode, acquiring the exhaust temperature of a compressor, and when the exhaust temperature of the compressor is higher than a preset temperature, controlling the second control valve to be closed and the first control valve and the air pump to be opened; and when the exhaust temperature of the compressor is less than or equal to the preset temperature, controlling the first control valve, the second control valve and the air pump to be closed.
According to the anti-frosting control method, the valve is controlled to be conducted according to the air conditioner operation mode to control the residual heat flow direction of the compressor, defrosting of the outdoor heat exchanger or frosting delay is achieved in the heating mode, and the temperature of the compressor is reduced in the non-heating mode to protect the compressor.
The present invention also provides an air conditioner including a computer-readable storage medium storing a computer program and a processor, and when the computer program is read and executed by the processor, implementing the anti-frosting control method as described above.
Compared with the prior art, the air conditioner and the anti-frosting control method have the same advantages, and are not repeated herein.
The present invention also provides a computer-readable storage medium storing a computer program which, when read and executed by a processor, implements the anti-frosting control method as described above.
The advantages of the computer readable storage medium and the above anti-frosting control method over the prior art are the same, and are not described herein again.
Drawings
FIG. 1 is a schematic view of an anti-frosting apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the gas lance and the outdoor heat exchanger according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a gas lance according to an embodiment of the present invention;
FIG. 4 is a flow chart of an anti-frosting control method according to an embodiment of the present invention;
fig. 5 is a specific flowchart of the anti-frosting control method according to the embodiment of the present invention.
Description of reference numerals:
1-compressor, 2-outer casing, 3-air pump, 4-first control valve, 5-second control valve, 6-gas transmission pipeline, 61-main pipe, 62-branch pipe, 7-outdoor heat exchanger, 71-fin, 72-heat exchange pipe, 8-gas injection pipe, 81-gas injection hole, 9-throttling device, 10-indoor heat exchanger and 11-fastener.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, an embodiment of the present invention provides an anti-frosting device, which includes a circulation loop formed by sequentially connecting a compressor 1, an outdoor heat exchanger 7, a throttling device 9, and an indoor heat exchanger 10, and further includes an outer casing 2, a gas transmission pipeline 6, and a gas injection pipe 8; the outer casing 2 is used for coating the compressor 1, the gas injection pipe 8 is arranged on the outdoor heat exchanger 7, and two ends of the gas transmission pipeline 6 are respectively communicated with the outer casing 2 and the gas injection pipe 8.
Specifically, in this embodiment, as shown in fig. 1, the anti-frosting device includes a compressor 1, an outer casing 2, a gas transmission pipeline 6, an outdoor heat exchanger 7, an air injection pipe 8, a throttling device 9, and an indoor heat exchanger 10, wherein the compressor 1, the outdoor heat exchanger 7, the throttling device 9, and the indoor heat exchanger 10 are sequentially connected to form a circulation loop, which belongs to the conventional arrangement of an air conditioner, in the present invention, the outer casing 2, the gas transmission pipeline 6, and the air injection pipe 8 are added, the outer casing 2 covers the compressor 1, so that hot air is present between the compressor 1 and the outer casing 2, the hot air is transmitted to the air injection pipe 8 through the gas transmission pipeline 6, and is injected to the outdoor heat exchanger 7 from the air injection pipe 8, thereby realizing temperature rise of the outdoor heat exchanger 7, delaying frosting of the outdoor heat exchanger 7, or realizing frosting of the outdoor heat exchanger 7; according to the defrosting device, other auxiliary heating equipment is not needed, defrosting or frosting delaying of the outdoor heat exchanger 7 is realized only by means of waste heat of the compressor 1, power consumption cannot be increased compared with an electric heating defrosting mode, and compared with a mode of defrosting by means of conversion from heating to a refrigerating mode through a four-way reversing valve, the condition that cold air is blown by an indoor unit cannot occur.
In this embodiment, the compressor waste heat is collected through the outer covering shell, and is transmitted through the gas transmission pipeline, and is sprayed to the outdoor heat exchanger from the gas injection pipe to realize defrosting or delay frosting of the outdoor heat exchanger, so that the energy is saved, the environment is protected, and normal indoor heat supply is met.
Preferably, the gas injection holes 81 are formed in the outer wall of the gas injection pipe 8, and the gas injection direction of the gas injection holes 81 is parallel to the fins 71 of the outdoor heat exchanger 7.
Specifically, in this embodiment, as shown in fig. 1 to fig. 3, a plurality of air injection holes 81 are provided on the outer wall of the air injection pipe 8, wherein the air injection direction of the plurality of air injection holes 81 is parallel to the fins 71 of the outdoor heat exchanger 7, that is, the fins 71 are arranged in the up-down direction and are perpendicular to the heat exchange pipes 72 arranged in the horizontal direction, the air injection holes 81 inject hot air in the up-down direction, and the hot air heats the heat exchange pipes 72 in the up-down direction of the air injection pipe 8, so that the outdoor heat exchanger 7, especially the heat exchange pipes 72, is heated, defrosting or frosting delay of the outdoor heat exchanger 7 is realized, the heat exchange efficiency of the outdoor heat exchanger 7 is ensured, and the indoor heating capacity is ensured.
In this embodiment, the jet direction through setting up the fumarole is parallel with outdoor heat exchanger's fin for the fumarole sprays hot-air towards upper and lower direction, realizes defrosting or delaying the frosting to outdoor heat exchanger, has ensured outdoor heat exchanger's heat exchange efficiency, thereby has ensured indoor heating ability.
Preferably, a plurality of the gas injection holes 81 are provided on the outer wall of the gas injection pipe 8.
Specifically, in this embodiment, as shown in fig. 1 to fig. 3, a plurality of air injection holes 81 are provided on the outer wall of the air injection pipe 8, so as to heat the outdoor heat exchanger 7, especially the heat exchange pipe 72, defrost or delay frost formation of the outdoor heat exchanger 7, ensure the heat exchange efficiency of the outdoor heat exchanger 7, and thus ensure the indoor heating capacity.
In this embodiment, through set up a plurality of fumaroles on the outer wall at the fumarole, effectively strengthened the defrosting or delay the effect of frosting to outdoor heat exchanger, ensured outdoor heat exchanger's heat exchange efficiency to indoor heating ability has been ensured.
Preferably, the frost prevention device further comprises a fastener 11, and the gas lance 8 is connected with the outdoor heat exchanger 7 through the fastener 11.
Specifically, in the present embodiment, as shown in fig. 2, the anti-frosting device further includes a fastener 11, and the gas injection pipe 8 is connected to the heat exchange pipe 72 of the outdoor heat exchanger 7 through the fastener 11; the fastening member 11 may be a limiting buckle, a fastening screw, or the like, and taking the limiting buckle as an example, specifically means that the limiting buckle is clamped with the heat exchange tube 72, and the limiting buckle fixes the air ejector tube 8, and taking the fastening screw as an example, the fastening screw is connected with the side plate of the outdoor heat exchanger 7 to fix the air ejector tube 8; thereby fix jet-propelled pipe 8 on heat exchange tube 72, because heat exchange tube 72 sets up with fin 71 is perpendicular, heat exchange tube 72 sets up along the horizontal direction, fin 71 is perpendicular with heat exchange tube 72, set up along vertical direction, then jet-propelled pipe 8 is parallel with heat exchange tube 72's direction of setting, the jet-propelled direction and the perpendicular setting of heat exchange tube 72 of fumarole 81 in the jet-propelled pipe 8, make the hot-air of spraying in fumarole 81 can cover most heat exchange tube 72, thereby effectively realize the defrosting or delay the frosting to outdoor heat exchanger 7, the heat exchange efficiency of outdoor heat exchanger 7 has been ensured, indoor heating capacity has been ensured.
In this embodiment, install the fumarole on outdoor heat exchanger through the fastener for the hot-air of spraying in the fumarole can the at utmost cover the heat exchange tube, thereby effectively realizes defrosting or delaying the frosting to outdoor heat exchanger, has ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the gas injection pipe 8 is fixed on the heat exchange pipe 72 of the outdoor heat exchanger 7 through the fastener 11.
Specifically, in this embodiment, as shown in fig. 2, the air injection pipe 8 is fixed on the heat exchange pipe 72 of the outdoor heat exchanger 7 through the fastening member 11, so that the hot air injected in the air injection hole 81 can cover most of the heat exchange pipe 72, thereby effectively defrosting or delaying frosting the outdoor heat exchanger 7, ensuring the heat exchange efficiency of the outdoor heat exchanger 7, and ensuring the indoor heating capacity.
In this embodiment, fix the fumarole on the heat exchange tube through the fastener for the hot-air of injection can greatly degree cover the heat exchange tube in the fumarole, thereby effectively realize the defrosting or delay the frosting to outdoor heat exchanger, has ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the air injection holes 81 are formed in the upper outer wall and the lower outer wall of the air injection pipe 8, and the air injection holes 81 in the upper outer wall and the air injection holes 81 in the lower outer wall are distributed in a staggered manner.
Specifically, in the present embodiment, as shown in fig. 1 to fig. 3, the air injection holes 81 are provided on both the upper outer wall and the lower outer wall of the air injection pipe 8, that is, the air injection holes 81 inject hot air in the up-down direction; simultaneously, if be located the fumarole 81 of outer wall and the fumarole 81 that is located the outer wall down counterpoint the distribution, because hot-air rises, most hot-air can upwards spout from the fumarole 81 that is located the outer wall, thereby lead to being located the heat exchange tube 72 of fumarole 8 below and not obtaining effective heating, upwards hot-air injection in both directions is even about guaranteeing, consequently in this embodiment, the fumarole 81 that is located the outer wall and the fumarole 81 that is located the outer wall down distribute by mistake, be located the fumarole 81 of outer wall and be located down on the fumarole 81 of outer wall not being in the same vertical direction promptly, hot-air still can be followed and is located the fumarole 81 of outer wall down and spout, make the heat exchange tube 72 of fumarole 8 about two directions all obtain effective heating, outdoor heat exchanger 7's heat exchange efficiency has been ensured, indoor.
In this embodiment, be located the fumarole of outer wall and be located the fumarole dislocation distribution of outer wall down through the setting for the ascending heat exchange tube in two directions all obtains effective heating about the fumarole, effectively realizes defrosting or delaying the frosting to outdoor heat exchanger, has ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the ratio of the distance from the gas injection pipe 8 to the top end of the outdoor heat exchanger 7 to the height of the outdoor heat exchanger 7 ranges from 2/3 to 3/4.
Specifically, in the present embodiment, as shown in fig. 2, the ratio of the distance from the gas injection pipe 8 to the top end of the outdoor heat exchanger 7 to the height of the outdoor heat exchanger 7 ranges from 2/3 to 3/4, and the height of the outdoor heat exchanger 7 is the distance from the top end to the bottom end of the outdoor heat exchanger 7; because the hot air rises, consequently the hot air that jets downwards from fumarole 81 only can move one section distance and will turn and upward movement, set up the distance and the specific value scope of outdoor heat exchanger 7 height of fumarole 8 to outdoor heat exchanger 7 top in this embodiment and be 2/3 to 3/4, the specific value scope of distance and the outdoor heat exchanger 7 height of fumarole 8 to outdoor heat exchanger 7 bottom is 1/4 to 1/3 promptly, make the hot air can carry out effective heating to the heat exchange tube 72 of fumarole 8 below, the heat exchange efficiency of outdoor heat exchanger 7 has been ensured, indoor heating capacity has been ensured.
In this embodiment, the ratio scope through setting up distance and the outdoor heat exchanger height on jet-propelled pipe to outdoor heat exchanger top is 2/3 to 3/4 for the hot-air can effectively heat the heat exchange tube of jet-propelled pipe below, and the hot-air can the at utmost cover the heat exchange tube, effectively realizes defrosting or delaying the frosting to outdoor heat exchanger, has ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the gas injection pipe 8 is arranged on the side of the outdoor heat exchanger 7 far away from the outdoor fan.
Specifically, in this embodiment, as shown in fig. 2, the air injection pipe 8 is disposed outside the outdoor heat exchanger 7, wherein the outdoor heat exchanger 7 is U-shaped, and the inside of the U-shaped is set as the outdoor fan, so that the air injection pipe 8 is disposed outside the outdoor heat exchanger 7 in this embodiment, i.e., away from one side of the outdoor fan, thereby preventing the outdoor fan from taking away the hot air ejected from the air injection holes 81, and the defrosting process is performed away from one side of the outdoor fan, thereby preventing the air blown out by the fan from containing a large amount of moisture.
In this embodiment, through keeping away from outdoor fan's one side with the jet-propelled pipe setting at outdoor heat exchanger, effectively prevent that outdoor fan from taking away the hot-air that the fumarole erupted to and effectively prevent to have a large amount of moisture in the wind that the fan blew off, thereby effectively realize defrosting or delaying the frosting to outdoor heat exchanger, ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the anti-frosting device further comprises a first control valve 4, the gas transmission pipeline 6 comprises a main pipe 61 for communicating the outer cladding 2 and the gas injection pipe 8 and a branch pipe 62 communicated with the main pipe 61, and the first control valve 4 is arranged on the branch pipe 62.
Specifically, as shown in fig. 1, the anti-frosting device further includes a first control valve 4, wherein the first control valve 4 is disposed on a branch pipe 62 of the gas transmission pipeline 6, the gas transmission pipeline 6 includes a main pipe 61 and a branch pipe 62, the main pipe 61 communicates with the outer casing 2 and the gas injection pipe 8, and the branch pipe 62 communicates with the main pipe 61 and leads to the outdoor fan; because the air conditioner operates in the non-heating mode, the waste heat of the compressor 1 does not need to be transmitted to the outdoor heat exchanger 7 for defrosting any more, so the waste heat of the compressor 1 needs to be discharged in time, and the temperature of the compressor is reduced to protect the compressor, therefore, the first control valve 4 is closed in the heating mode, the hot air heated by the waste heat of the compressor is transmitted to the outdoor heat exchanger 7 for heating, the first control valve 4 is opened in the non-heating mode and when the compressor needs to dissipate heat, the waste heat of the compressor 1 is discharged, and the waste heat is discharged out of the outdoor unit through the outdoor fan.
In this embodiment, through setting up the first control valve that is located the branch pipe, in time discharge the waste heat of compressor when the compressor need dispel the heat, reduce compressor temperature, effectively protect the compressor.
Preferably, the anti-frosting device further comprises a second control valve 5, wherein the second control valve 5 is arranged on the main pipe 61 and is positioned between the gas spraying pipe 8 and the branch pipe 62.
Specifically, in this embodiment, as shown in fig. 1, the anti-frosting device further includes a second control valve 5, the second control valve 5 is disposed on the main pipe 61 and between the gas injection pipe 8 and the branch pipe 62, the second control valve 5 relates to the conduction condition from the outer casing 2 to the gas injection pipe 8, in the heating mode, the second control valve 5 is conducted, the hot air heated by the residual heat of the compressor is transmitted to the outdoor heat exchanger 7 to heat the hot air, and in the non-heating mode, the second control valve 5 is closed, and at this time, the residual heat of the compressor does not enter the outdoor heat exchanger 7.
In this embodiment, through setting up the second control valve that is located between jet-propelled pipe and the branch pipe, realize the transmission course of compressor waste heat to outdoor heat exchanger under the mode of heating, realize defrosting or delaying the frosting to outdoor heat exchanger, ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability.
Preferably, the anti-frosting device further comprises an air pump 3, wherein the air pump 3 is arranged on the main pipe 61 and is positioned between the compressor 1 and the branch pipe 62.
Specifically, in this embodiment, as shown in fig. 1, the anti-frosting device further includes an air pump 3, the air pump 3 is disposed on the main pipe 61 and between the compressor 1 and the branch pipe 62, that is, the air pump 3 is located in the air delivery pipe 6 near one side of the compressor 1, and in the heating mode, the air pump 3 drives hot air to be delivered from the outer casing 2 to the air injection pipe 8, so that defrosting or delay frosting of the outdoor heat exchanger 7 is effectively achieved, and the heat exchange efficiency of the outdoor heat exchanger 7 and the indoor heating capacity are ensured; in the non-heating mode, the air pump 3 drives hot air to be discharged from the outer casing 2 through the branch pipe 62, so that forced convection heat exchange of the compressor 1 is realized, and the temperature of the compressor is effectively reduced to protect the compressor.
In this embodiment, through setting up the air pump that is located between compressor and the branch pipe, effectively realize defrosting or delay the frosting to outdoor heat exchanger under the heating mode, ensured outdoor heat exchanger's heat exchange efficiency and indoor heating ability, realize the forced convection heat transfer of compressor under the non-heating mode, effectively reduce the compressor temperature and protect the compressor.
Another embodiment of the present invention provides a method for controlling anti-frosting, which is applied to the above anti-frosting apparatus, and includes: acquiring an air conditioner running mode; and controlling the conduction states of a first control valve 4, a second control valve 5 and an air pump 3 of the anti-frosting device according to the air conditioner running mode so as to control the flow direction of waste heat from the compressor 1 to the outdoor heat exchanger 7.
Specifically, in this embodiment, with reference to fig. 4, an anti-frosting control method applied to the anti-frosting device includes: acquiring an air conditioner running mode; and controlling the conduction states of a first control valve 4, a second control valve 5 and an air pump 3 of the anti-frosting device according to the air conditioner running mode so as to control the flow direction of waste heat from the compressor 1 to the outdoor heat exchanger 7. In this embodiment, the conduction states of the first control valve 4, the second control valve 5 and the air pump 3 are controlled according to the corresponding air conditioner operation mode, so as to change the channel structure of the air transmission pipeline 6, further control the flow direction of the residual heat of the compressor 1 to the outdoor heat exchanger 7, so as to defrost the outdoor heat exchanger 7 or delay the frosting in the heating mode, and control the flow direction of the residual heat of the compressor 1 to the outdoor fan, so as to reduce the temperature of the compressor 1 in the non-heating mode to protect the compressor 1.
In this embodiment, the valve is controlled to be turned on according to the air conditioner operation mode to control the flow direction of the residual heat of the compressor, so that defrosting of the outdoor heat exchanger or frost delaying is realized in the heating mode, and the temperature of the compressor is reduced in the non-heating mode to protect the compressor.
Preferably, the controlling the on-state of the first control valve 4, the second control valve 5 and the air pump 3 of the anti-frosting device according to the air conditioner operation mode specifically includes: when the air conditioner is started to operate for a preset time, acquiring an air conditioner operation mode; when the air conditioner running mode is a heating mode, controlling the first control valve 4 to be closed and controlling the second control valve 5 and the air pump 3 to be opened; when the air conditioner running mode is a non-heating mode, acquiring the exhaust temperature of a compressor, and when the exhaust temperature of the compressor is higher than a preset temperature, controlling the second control valve 5 to be closed and the first control valve 4 and the air pump 3 to be opened; and when the compressor exhaust temperature is less than or equal to the preset temperature, controlling the first control valve 4, the second control valve 5 and the air pump 3 to be closed.
Specifically, in this embodiment, with reference to fig. 5, the anti-frosting control method specifically includes: when the air conditioner is started, the first control valve 4, the second control valve 5 and the air pump 3 are all closed, the compressor 1 runs for a preset time, for example, 20min, an air conditioner running mode is obtained, when the air conditioner running mode is a heating mode, the air pump 3 and the second control valve 5 are opened, the air conditioner entering from the aperture of the bottom shell of the outer casing 2 is heated by waste heat of the compressor 1, the air conditioner is pressurized by the air pump 3 and then is transmitted to the air injection pipe 8 from the air transmission pipeline 6 and then is injected onto the outdoor heat exchanger 7, defrosting or frost delay is achieved on the outdoor heat exchanger in the heating mode, and the heat exchange efficiency of the outdoor heat exchanger 7 is guaranteed; when the operation mode of the air conditioner is a non-heating mode, acquiring the exhaust temperature of the compressor, when the exhaust temperature of the compressor is greater than the preset temperature, for example, the preset temperature is 90 ℃, closing the second control valve 5, and simultaneously starting the first control valve 4 and the air pump 3, the residual heat of the compressor 1 heats the air conditioner entering from the aperture of the bottom shell of the outer casing 2, the air conditioner is pressurized by the air pump 3 and then discharged to an outdoor fan from a branch pipe 62 of the air transmission pipeline 6, and the hot air is discharged to the outdoor environment by the outdoor fan, so that the temperature of the compressor 1 is reduced in the non-heating mode to protect the compressor 1; when the exhaust temperature of the compressor is less than or equal to the preset temperature, the compressor 1 does not need to be cooled at the moment, and the first control valve 4, the second control valve 5 and the air pump 3 are all closed. Wherein, the comparison of the discharge temperature of the compressor and the preset temperature is performed once every 30s, so as to reduce the temperature of the compressor 1 in time when the temperature of the compressor 1 is too high.
In this embodiment, the valve is controlled to be turned on according to the air conditioner operation mode to control the flow direction of the residual heat of the compressor, so that defrosting of the outdoor heat exchanger or frost delaying is realized in the heating mode, and the temperature of the compressor is reduced in the non-heating mode to protect the compressor.
Another embodiment of the present invention provides an air conditioner including a computer-readable storage medium storing a computer program and a processor, and when the computer program is read and executed by the processor, implementing the anti-frosting control method as described above.
Another embodiment of the present invention provides a computer-readable storage medium storing a computer program which, when read and executed by a processor, implements the anti-frosting control method as described above.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (15)
1. An anti-frosting device comprises a circulating loop formed by sequentially connecting a compressor (1), an outdoor heat exchanger (7), a throttling device (9) and an indoor heat exchanger (10), and is characterized by also comprising an outer casing (2), a gas transmission pipeline (6) and a gas injection pipe (8); the outer casing (2) is used for coating the compressor (1), the gas injection pipe (8) is arranged on the outdoor heat exchanger (7), and two ends of the gas transmission pipeline (6) are respectively communicated with the outer casing (2) and the gas injection pipe (8).
2. The anti-frosting device according to claim 1, wherein the air injection holes (81) are arranged on the outer wall of the air injection pipe (8), and the air injection direction of the air injection holes (81) is parallel to the fins (71) of the outdoor heat exchanger (7).
3. The anti-frosting device according to claim 2, wherein a plurality of the air injection holes (81) are provided on the outer wall of the air injection pipe (8).
4. The anti-frosting device according to claim 2, further comprising a fastener (11), wherein the gas lance (8) is connected with the outdoor heat exchanger (7) through the fastener (11).
5. The anti-frosting device according to claim 4, wherein the gas lance (8) is fixed on the heat exchange pipe (72) of the outdoor heat exchanger (7) by the fastener (11).
6. The anti-frosting device according to claim 2, wherein the air injection holes (81) are arranged on both the upper outer wall and the lower outer wall of the air injection pipe (8), and the air injection holes (81) on the upper outer wall and the air injection holes (81) on the lower outer wall are distributed in a staggered manner.
7. The anti-frosting device according to claim 1, wherein the ratio of the distance of the gas lance (8) to the top end of the outdoor heat exchanger (7) to the height of the outdoor heat exchanger (7) ranges from 2/3 to 3/4.
8. The anti-frosting device according to claim 1, wherein the air lance (8) is arranged at a side of the outdoor heat exchanger (7) remote from an outdoor fan.
9. The anti-frosting device according to any one of claims 1 to 8, further comprising a first control valve (4), wherein the gas transmission pipeline (6) comprises a main pipe (61) for communicating the outer casing (2) and the gas injection pipe (8) and a branch pipe (62) communicating with the main pipe (61), and the first control valve (4) is provided on the branch pipe (62).
10. The anti-frosting apparatus according to claim 9, further comprising a second control valve (5), the second control valve (5) being provided on the main pipe (61) and between the gas lance (8) and the branch pipe (62).
11. The anti-frosting device according to claim 9, further comprising an air pump (3), the air pump (3) being disposed on the main pipe (61) and between the compressor (1) and the branch pipe (62).
12. An anti-frosting control method applied to the anti-frosting device of any one of claims 1 to 11, comprising:
acquiring an air conditioner running mode;
and controlling the conduction states of a first control valve (4), a second control valve (5) and an air pump (3) of the anti-frosting device according to the air conditioner running mode so as to control the flow direction of waste heat from the compressor (1) to the outdoor heat exchanger (7).
13. The anti-frosting control method according to claim 12, wherein the controlling of the conduction states of the first control valve (4), the second control valve (5) and the air pump (3) of the anti-frosting device according to the air-conditioning operation mode specifically comprises:
when the air conditioner is started to operate for a preset time, acquiring an air conditioner operation mode;
when the air conditioner running mode is a heating mode, controlling the first control valve (4) to be closed and the second control valve (5) and the air pump (3) to be opened;
when the air conditioner running mode is a non-heating mode, acquiring the exhaust temperature of a compressor, and when the exhaust temperature of the compressor is higher than a preset temperature, controlling the second control valve (5) to be closed and the first control valve (4) and the air pump (3) to be opened; and when the compressor discharge temperature is less than or equal to the preset temperature, controlling the first control valve (4), the second control valve (5) and the air pump (3) to be closed.
14. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein when the computer program is read and executed by the processor, the anti-frosting control method according to claim 12 or 13 is implemented.
15. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when read and executed by a processor, implements the anti-frosting control method according to claim 12 or 13.
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| CN201911196516.7A CN110779247A (en) | 2019-11-29 | 2019-11-29 | Anti-frosting device, control method, air conditioner and storage medium |
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| CN201911196516.7A CN110779247A (en) | 2019-11-29 | 2019-11-29 | Anti-frosting device, control method, air conditioner and storage medium |
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