CN104634032A - Defrosting speed adjusting method, defrosting speed adjusting device and air conditioner - Google Patents
Defrosting speed adjusting method, defrosting speed adjusting device and air conditioner Download PDFInfo
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- CN104634032A CN104634032A CN201510050353.7A CN201510050353A CN104634032A CN 104634032 A CN104634032 A CN 104634032A CN 201510050353 A CN201510050353 A CN 201510050353A CN 104634032 A CN104634032 A CN 104634032A
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- refrigerant pipeline
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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
- F25B49/027—Condenser control arrangements
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a defrosting speed adjusting method, a defrosting speed adjusting device and an air conditioner. The defrosting speed adjusting method comprises the steps of determining the defrosting speed of each refrigerant pipe of multiple refrigerant pipes in a condenser of an outdoor unit of the air conditioner, judging whether the defrosting speed of any refrigerant pipe of the multiple refrigerant pipes is smaller than or equal to preset speed, and adding a refrigerant branch communicated with any refrigerant pipe between any refrigerant pipe and a four-way valve of the air conditioner so as to improve the defrosting speed of any refrigerant pipe when a judgment result is yes. By means of the technical scheme, the defrosting speeds of the multiple refrigerant pipes can be more uniform, the multiple refrigerant pipes can simultaneously complete defrosting basically, accordingly the defrosting time required by the multiple refrigerant pipes is shortened, a refrigerant can be further prevented from continuously flowing through the refrigerant pipes completing defrosting earlier, accordingly heat loss of the refrigerant is reduced, and the heating effect of the air conditioner is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of defrost velocity regulating method, a kind of defrost rate adjustment device and a kind of air-conditioner.
Background technology
At present, air-conditioner is when heating mode, the phenomenon of solidifying frost is there will be in multiple refrigerant pipelines in the condenser of air-conditioner, in the related, the reverse kind of refrigeration cycle of usual employing defrosts, but has following two shortcomings to the scheme that the solidifying frost in multiple refrigerant pipeline carries out defrost in correlation technique:
1. defrost speed is uneven, the defrost speed of each refrigerant pipeline in multiple refrigerant pipeline is different, namely the defrost time of each refrigerant pipeline is different, cause defrost on the whole chronic, especially the gathering tube of the below of condenser is positioned at, refrigerant arrives gathering tube after flowing through multiple refrigerant pipeline time, the temperature of refrigerant is lower, causes defrost speed slower.
2. the heat waste of refrigerant.The refrigerant pipeline first completing defrost continues to have the refrigerant of high temperature to flow through, and makes the heat loss of refrigerant, reduces the utilization ratio of refrigerant, affects the heating effect of air-conditioner.
Therefore, how to make the defrost speed of multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, decrease the defrost time of multiple refrigerant pipeline, reduce the loss of the heat of refrigerant simultaneously, thus improve the heating effect of air-conditioner, become problem demanding prompt solution.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is to propose a kind of defrost velocity regulating method.
Another object of the present invention is to propose a kind of defrost rate adjustment device.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of defrost velocity regulating method, comprising: the defrost speed determining each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner; Judge whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate, when judged result is for being, the refrigerant branch road be connected with described arbitrary refrigerant pipeline is added, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
Defrost velocity regulating method according to an embodiment of the invention, when the defrost speed of the arbitrary refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner is less than or equal to scheduled rate, namely determine that the defrost speed of arbitrary refrigerant pipeline is comparatively slow (such as, this arbitrary refrigerant pipeline is the gathering tube of multiple refrigerant pipeline, refrigerant arrives gathering tube after flowing through multiple refrigerant pipeline time, the temperature of refrigerant is lower, the defrost speed of this gathering tube is slow), between arbitrary refrigerant pipeline and the cross valve of air-conditioner, then add the refrigerant branch road be connected with arbitrary refrigerant pipeline, the heat that the refrigerant with HTHP is distributed when flowing through refrigerant branch road can improve the temperature of arbitrary refrigerant pipeline, thus improve the defrost speed of arbitrary refrigerant pipeline, thus decrease the defrost time of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, can be avoided like this in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: add the refrigerant branch road be connected with described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner after, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve.
Defrost velocity regulating method according to an embodiment of the invention, refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve, when the defrost speed of arbitrary refrigerant pipeline is less than or equal to scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is slower, then open electric expansion valve or electromagnetism on-off valve, refrigerant can be circulated in refrigerant branch road, thus the defrost speed of arbitrary refrigerant pipeline can be accelerated, and then make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, decrease the defrost time of arbitrary refrigerant pipeline, when the defrost speed of arbitrary refrigerant pipeline is greater than scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is normal defrost speed, do not need the defrost speed increasing arbitrary refrigerant pipeline, then close electric expansion valve or disconnect electromagnetism on-off valve, reduce scattering and disappearing of refrigerant heat, thus improve the utilization rate of refrigerant.
According to one embodiment of present invention, also comprise: after the described refrigerant branch road of interpolation, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline; In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline; The aperture of described electric expansion valve or described electromagnetism on-off valve is determined according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
Defrost velocity regulating method according to an embodiment of the invention, after interpolation refrigerant branch road, the refrigerant exit branch road of arbitrary refrigerant pipeline arranges the first temperature sensing device, in order to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of arbitrary refrigerant pipeline, in multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, in order to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of target refrigerant pipeline, by the first refrigerant temperature of detecting and the second refrigerant temperature, determine the aperture of electric expansion valve or electromagnetism on-off valve, thus the flow of refrigerant in the refrigerant branch road added can be controlled, and then control the temperature of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of arbitrary refrigerant pipeline, wherein, first temperature sensing device and the second temperature sensing device can be that temperature sensor etc. can the device of detected temperatures.
According to one embodiment of present invention, the described aperture determining described electric expansion valve or described electromagnetism on-off valve according to described first refrigerant temperature and described second refrigerant temperature, specifically comprise: if the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to first preset the temperature difference, then close described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve; If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then open described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, wherein, the described first default temperature difference is less than the described second default temperature difference.
Defrost velocity regulating method according to an embodiment of the invention, according to the aperture of the first refrigerant temperature and the second refrigerant temperature determination electric expansion valve or electromagnetism on-off valve, specifically comprise: if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is less than or equal to first preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that the defrost speed of arbitrary refrigerant pipeline is the fastest with defrost speed differs less, illustrate that the defrost speed ratio of multiple refrigerant pipeline is comparatively even or trend towards evenly, then close electric expansion valve or electromagnetism on-off valve, forbid that refrigerant circulates in the new refrigerant branch road added, or reduce the aperture of electric expansion valve or the aperture of electromagnetism on-off valve, reduce the flow of refrigerant in refrigerant branch road, in addition, if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is more than or equal to second preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that arbitrary refrigerant pipeline is the fastest with defrost speed differs larger, illustrate that the defrost speed of multiple refrigerant pipeline is uneven, then unlocking electronic expansion valve or electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, thus increase the flow of refrigerant in refrigerant branch road, improve the first refrigerant temperature of arbitrary refrigerant pipeline, improve the defrost speed of arbitrary refrigerant pipeline, this control to electric expansion valve or electromagnetism on-off valve, effectively can control the flow of refrigerant in refrigerant branch road, thus control the temperature of arbitrary refrigerant pipeline, make the defrost speed of other refrigerant pipelines in arbitrary refrigerant pipeline and multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, in addition, the defrost speed of multiple refrigerant pipeline more evenly can also avoid in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: one end of described refrigerant branch road is connected with described cross valve, the other end is connected with described arbitrary refrigerant pipeline.
Defrost velocity regulating method according to an embodiment of the invention, one end of refrigerant branch road is connected with cross valve, the refrigerant through cross valve is made to flow through refrigerant branch road, and due to the refrigerant flowing through refrigerant branch road be the gas of HTHP, its air pressure is than the refrigerant inlet of arbitrary refrigerant pipeline, the pressure of any position of refrigerant exit or arbitrary refrigerant pipeline centre is all large, therefore, the other end of refrigerant branch road and the refrigerant inlet of arbitrary refrigerant pipeline, the any position of refrigerant exit or arbitrary refrigerant pipeline centre is connected and can flow in condenser, thus improve the utilization rate of refrigerant, and then improve the heating effect of air-conditioner.
Embodiment according to a second aspect of the invention, proposes a kind of defrost rate adjustment device, comprising: determining unit, determines the defrost speed of each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner; Judging unit, judges whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate; Processing unit, when judged result is for being, adds the refrigerant branch road be connected with described arbitrary refrigerant pipeline, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
Defrost rate adjustment device according to an embodiment of the invention, when the defrost speed of the arbitrary refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner is less than or equal to scheduled rate, namely determine that the defrost speed of arbitrary refrigerant pipeline is comparatively slow (such as, this arbitrary refrigerant pipeline is the gathering tube of multiple refrigerant pipeline, refrigerant arrives gathering tube after flowing through multiple refrigerant pipeline time, the temperature of refrigerant is lower, the defrost speed of this gathering tube is slow), between arbitrary refrigerant pipeline and the cross valve of air-conditioner, then add the refrigerant branch road be connected with arbitrary refrigerant pipeline, the heat that the refrigerant with HTHP is distributed when flowing through refrigerant branch road can improve the temperature of arbitrary refrigerant pipeline, thus improve the defrost speed of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, can be avoided like this in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: setting unit, add the refrigerant branch road be connected with described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner after, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve.
Defrost rate adjustment device according to an embodiment of the invention, refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve, when the defrost speed of arbitrary refrigerant pipeline is less than or equal to scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is slower, then open electric expansion valve or electromagnetism on-off valve, refrigerant can be circulated in refrigerant branch road, thus the defrost speed of arbitrary refrigerant pipeline can be accelerated, and then make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, decrease the defrost time of arbitrary refrigerant pipeline, when the defrost speed of arbitrary refrigerant pipeline is greater than scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is normal defrost speed, do not need the defrost speed increasing arbitrary refrigerant pipeline, then close electric expansion valve or disconnect electromagnetism on-off valve, reduce scattering and disappearing of refrigerant heat, thus improve the utilization rate of refrigerant.
According to one embodiment of present invention, also comprise: described setting unit also for: interpolation described refrigerant branch road after, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline; In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline; Described determining unit is also for the aperture of determining described electric expansion valve or described electromagnetism on-off valve according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
Defrost rate adjustment device according to an embodiment of the invention, after interpolation refrigerant branch road, the refrigerant exit branch road of arbitrary refrigerant pipeline arranges the first temperature sensing device, in order to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of arbitrary refrigerant pipeline, in multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, in order to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of target refrigerant pipeline, by the first refrigerant temperature of detecting and the second refrigerant temperature, determine the aperture of electric expansion valve or electromagnetism on-off valve, thus the flow of refrigerant in the refrigerant branch road added can be controlled, and then control the temperature of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of arbitrary refrigerant pipeline, wherein, first temperature sensing device and the second temperature sensing device can be that temperature sensor etc. can the device of detected temperatures.
According to one embodiment of present invention, described determining unit concrete also for: if the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to the first default temperature difference, then close described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve; If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then opens described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve.
Defrost rate adjustment device according to an embodiment of the invention, according to the aperture of the first refrigerant temperature and the second refrigerant temperature determination electric expansion valve or electromagnetism on-off valve, specifically comprise: if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is less than or equal to first preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that the defrost speed of arbitrary refrigerant pipeline is the fastest with defrost speed differs less, illustrate that the defrost speed ratio of multiple refrigerant pipeline is comparatively even or trend towards evenly, then close electric expansion valve or electromagnetism on-off valve, forbid that refrigerant circulates in the new refrigerant branch road added, or reduce the aperture of electric expansion valve or the aperture of electromagnetism on-off valve, reduce the flow of refrigerant in refrigerant branch road, in addition, if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is more than or equal to second preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that arbitrary refrigerant pipeline is the fastest with defrost speed differs larger, illustrate that the defrost speed of multiple refrigerant pipeline is uneven, then unlocking electronic expansion valve or electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, thus increase the flow of refrigerant in refrigerant branch road, improve the first refrigerant temperature of arbitrary refrigerant pipeline, improve the defrost speed of arbitrary refrigerant pipeline, this control to electric expansion valve or electromagnetism on-off valve, effectively can control the flow of refrigerant in refrigerant branch road, thus control the temperature of arbitrary refrigerant pipeline, make the defrost speed of other refrigerant pipelines in arbitrary refrigerant pipeline and multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, in addition, the defrost speed of multiple refrigerant pipeline more evenly can also avoid in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: one end of described refrigerant branch road is connected with described cross valve, the other end is connected with described arbitrary refrigerant pipeline.
Defrost rate adjustment device according to an embodiment of the invention, one end of refrigerant branch road is connected with cross valve, the refrigerant through cross valve is made to flow through refrigerant branch road, and due to the refrigerant flowing through refrigerant branch road be the gas of HTHP, its air pressure is than the refrigerant inlet of arbitrary refrigerant pipeline, the pressure of any position of refrigerant exit or arbitrary refrigerant pipeline centre is all large, therefore, the other end of refrigerant branch road and the refrigerant inlet of arbitrary refrigerant pipeline, the any position of refrigerant exit or arbitrary refrigerant pipeline centre is connected and can flow in condenser, thus improve the utilization rate of refrigerant, and then improve the heating effect of air-conditioner.
Embodiment according to a third aspect of the invention we, proposes a kind of air-conditioner, comprising: the defrost rate adjustment device as described in above-mentioned any one technical scheme; Throttling arrangement, one end of described throttling arrangement is connected to described condenser, and the other end is connected to the evaporimeter of described air-conditioner; Described evaporimeter, one end of described evaporimeter is connected to described throttling arrangement, and the other end is connected to described cross valve; And compressor, be connected with described cross valve.
Air-conditioner according to an embodiment of the invention, comprise: defrost rate adjustment device, for making the defrost speed of multiple refrigerant pipeline more even, thus decrease the defrost time of refrigerant pipeline, can be avoided like this in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner, in addition, air-conditioner also comprises: throttling arrangement, evaporimeter and compressor, wherein, one end of throttling arrangement is connected to condenser, the other end is connected to the evaporimeter of air-conditioner, one end of evaporimeter is connected to throttling arrangement, the other end is connected to cross valve, compressor is connected with cross valve, and defrost rate adjustment device, throttling arrangement, evaporimeter and compressor not only ensure that refrigerant recycling in air-conditioner, what also assures that air-conditioner normally heats work.
By technical scheme of the present invention, the defrost speed of multiple refrigerant pipeline can be made more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of multiple refrigerant pipeline, can also avoid first completing in the refrigerant pipeline of defrost continues to have the refrigerant of HTHP to flow through simultaneously, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow sheet of defrost velocity regulating method according to an embodiment of the invention;
Fig. 2 shows the structural representation of defrost rate adjustment device according to an embodiment of the invention;
Fig. 3 shows the structural representation of air-conditioner according to an embodiment of the invention;
Fig. 4 shows the internal structure schematic diagram of air-conditioner according to another embodiment of the invention;
Fig. 5 shows the internal structure schematic diagram of air-conditioner according to still another embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow sheet of defrost velocity regulating method according to an embodiment of the invention.
As shown in Figure 1, defrost velocity regulating method according to an embodiment of the invention, comprising:
Step 102, determines the defrost speed of each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner;
Step 104, judge whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate, when judged result is for being, the refrigerant branch road be connected with described arbitrary refrigerant pipeline is added, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
Defrost velocity regulating method according to an embodiment of the invention, when the defrost speed of the arbitrary refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner is less than or equal to scheduled rate, namely determine that the defrost speed of arbitrary refrigerant pipeline is comparatively slow (such as, this arbitrary refrigerant pipeline is the gathering tube of multiple refrigerant pipeline, refrigerant arrives gathering tube after flowing through multiple refrigerant pipeline time, the temperature of refrigerant is lower, the defrost speed of this gathering tube is slow), between arbitrary refrigerant pipeline and the cross valve of air-conditioner, then add the refrigerant branch road be connected with arbitrary refrigerant pipeline, the heat that the refrigerant with HTHP is distributed when flowing through refrigerant branch road can improve the temperature of arbitrary refrigerant pipeline, thus improve the defrost speed of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, can be avoided like this in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: add the refrigerant branch road be connected with described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner after, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve.
Defrost velocity regulating method according to an embodiment of the invention, refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve, when the defrost speed of arbitrary refrigerant pipeline is less than or equal to scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is slower, then open electric expansion valve or electromagnetism on-off valve, refrigerant can be circulated in refrigerant branch road, thus the defrost speed of arbitrary refrigerant pipeline can be accelerated, and then make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, decrease the defrost time of arbitrary refrigerant pipeline, when the defrost speed of arbitrary refrigerant pipeline is greater than scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is normal defrost speed, do not need the defrost speed increasing arbitrary refrigerant pipeline, then close electric expansion valve or disconnect electromagnetism on-off valve, reduce scattering and disappearing of refrigerant heat, thus improve the utilization rate of refrigerant.
According to one embodiment of present invention, also comprise: after the described refrigerant branch road of interpolation, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline; In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline; The aperture of described electric expansion valve or described electromagnetism on-off valve is determined according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
Defrost velocity regulating method according to an embodiment of the invention, after interpolation refrigerant branch road, the refrigerant exit branch road of arbitrary refrigerant pipeline arranges the first temperature sensing device, in order to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of arbitrary refrigerant pipeline, in multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, in order to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of target refrigerant pipeline, by the first refrigerant temperature of detecting and the second refrigerant temperature, determine the aperture of electric expansion valve or electromagnetism on-off valve, thus the flow of refrigerant in the refrigerant branch road added can be controlled, and then control the temperature of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of arbitrary refrigerant pipeline, wherein, first temperature sensing device and the second temperature sensing device can be that temperature sensor etc. can the device of detected temperatures.
According to one embodiment of present invention, the described aperture determining described electric expansion valve or described electromagnetism on-off valve according to described first refrigerant temperature and described second refrigerant temperature, specifically comprise: if the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to first preset the temperature difference, then close described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve; If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then open described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, wherein, the described first default temperature difference is less than the described second default temperature difference.
Defrost velocity regulating method according to an embodiment of the invention, according to the aperture of the first refrigerant temperature and the second refrigerant temperature determination electric expansion valve or electromagnetism on-off valve, specifically comprise: if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is less than or equal to first preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that the defrost speed of arbitrary refrigerant pipeline is the fastest with defrost speed differs less, illustrate that the defrost speed ratio of multiple refrigerant pipeline is comparatively even or trend towards evenly, then close electric expansion valve or electromagnetism on-off valve, forbid that refrigerant circulates in the new refrigerant branch road added, or reduce the aperture of electric expansion valve or the aperture of electromagnetism on-off valve, reduce the flow of refrigerant in refrigerant branch road, in addition, if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is more than or equal to second preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that arbitrary refrigerant pipeline is the fastest with defrost speed differs larger, illustrate that the defrost speed of multiple refrigerant pipeline is uneven, then unlocking electronic expansion valve or electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, thus increase the flow of refrigerant in refrigerant branch road, improve the first refrigerant temperature of arbitrary refrigerant pipeline, improve the defrost speed of arbitrary refrigerant pipeline, this control to electric expansion valve or electromagnetism on-off valve, effectively can control the flow of refrigerant in refrigerant branch road, thus control the temperature of arbitrary refrigerant pipeline, make the defrost speed of other refrigerant pipelines in arbitrary refrigerant pipeline and multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, in addition, the defrost speed of multiple refrigerant pipeline more evenly can also avoid in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: one end of described refrigerant branch road is connected with described cross valve, the other end is connected with described arbitrary refrigerant pipeline.
Defrost velocity regulating method according to an embodiment of the invention, one end of refrigerant branch road is connected with cross valve, the refrigerant through cross valve is made to flow through refrigerant branch road, and due to the refrigerant flowing through refrigerant branch road be the gas of HTHP, its air pressure is than the refrigerant inlet of arbitrary refrigerant pipeline, the pressure of any position of refrigerant exit or arbitrary refrigerant pipeline centre is all large, therefore, the other end of refrigerant branch road and the refrigerant inlet of arbitrary refrigerant pipeline, the any position of refrigerant exit or arbitrary refrigerant pipeline centre is connected and can flow in condenser, thus improve the utilization rate of refrigerant, and then improve the heating effect of air-conditioner.
Fig. 2 shows the structural representation of defrost rate adjustment device according to an embodiment of the invention.
As shown in Figure 2, defrost rate adjustment device 200 according to an embodiment of the invention, comprise: determining unit 202, judging unit 204 and processing unit 206, described determining unit 202, for determining the defrost speed of each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner; Judging unit 204, for judging whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate; Processing unit 206, for when judged result is for being, adds the refrigerant branch road be connected with described arbitrary refrigerant pipeline, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
Defrost rate adjustment device 200 according to an embodiment of the invention, when the defrost speed of the arbitrary refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner is less than or equal to scheduled rate, namely determine that the defrost speed of arbitrary refrigerant pipeline is comparatively slow (such as, this arbitrary refrigerant pipeline is the gathering tube of multiple refrigerant pipeline, refrigerant arrives gathering tube after flowing through multiple refrigerant pipeline time, the temperature of refrigerant is lower, the defrost speed of this gathering tube is slow), between arbitrary refrigerant pipeline and the cross valve of air-conditioner, then add the refrigerant branch road be connected with arbitrary refrigerant pipeline, the heat that the refrigerant with HTHP is distributed when flowing through refrigerant branch road can improve the temperature of arbitrary refrigerant pipeline, thus improve the defrost speed of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously thus decrease the defrost time of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, can be avoided like this in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: setting unit 208, add the refrigerant branch road be connected with described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner after, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve.
Defrost rate adjustment device 200 according to an embodiment of the invention, refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve, when the defrost speed of arbitrary refrigerant pipeline is less than or equal to scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is slower, then open electric expansion valve or electromagnetism on-off valve, refrigerant can be circulated in refrigerant branch road, thus the defrost speed of arbitrary refrigerant pipeline can be accelerated, and then make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, decrease the defrost time of arbitrary refrigerant pipeline, when the defrost speed of arbitrary refrigerant pipeline is greater than scheduled rate, namely the defrost speed of arbitrary refrigerant pipeline is normal defrost speed, do not need the defrost speed increasing arbitrary refrigerant pipeline, then close electric expansion valve or disconnect electromagnetism on-off valve, reduce scattering and disappearing of refrigerant heat, thus improve the utilization rate of refrigerant.
According to one embodiment of present invention, also comprise: described setting unit 208 also for: interpolation described refrigerant branch road after, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline; In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline; Described determining unit 202 is also for the aperture of determining described electric expansion valve or described electromagnetism on-off valve according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
Defrost rate adjustment device 200 according to an embodiment of the invention, after interpolation refrigerant branch road, the refrigerant exit branch road of arbitrary refrigerant pipeline arranges the first temperature sensing device, in order to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of arbitrary refrigerant pipeline, in multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, in order to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of target refrigerant pipeline, by the first refrigerant temperature of detecting and the second refrigerant temperature, determine the aperture of electric expansion valve or electromagnetism on-off valve, thus the flow of refrigerant in the refrigerant branch road added can be controlled, and then control the temperature of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of arbitrary refrigerant pipeline, wherein, first temperature sensing device and the second temperature sensing device can be that temperature sensor etc. can the device of detected temperatures.
According to one embodiment of present invention, described determining unit 202 concrete also for: if the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to the first default temperature difference, then close described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve; If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then opens described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve.
Defrost rate adjustment device 200 according to an embodiment of the invention, according to the aperture of the first refrigerant temperature and the second refrigerant temperature determination electric expansion valve or electromagnetism on-off valve, specifically comprise: if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is less than or equal to first preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that the defrost speed of arbitrary refrigerant pipeline is the fastest with defrost speed differs less, illustrate that the defrost speed ratio of multiple refrigerant pipeline is comparatively even or trend towards evenly, then close electric expansion valve or electromagnetism on-off valve, forbid that refrigerant circulates in the new refrigerant branch road added, or reduce the aperture of electric expansion valve or the aperture of electromagnetism on-off valve, reduce the flow of refrigerant in refrigerant branch road, in addition, if the temperature difference of the first refrigerant temperature and the second refrigerant temperature is more than or equal to second preset the temperature difference, namely the defrost speed of the target refrigerant pipeline that arbitrary refrigerant pipeline is the fastest with defrost speed differs larger, illustrate that the defrost speed of multiple refrigerant pipeline is uneven, then unlocking electronic expansion valve or electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, thus increase the flow of refrigerant in refrigerant branch road, improve the first refrigerant temperature of arbitrary refrigerant pipeline, improve the defrost speed of arbitrary refrigerant pipeline, this control to electric expansion valve or electromagnetism on-off valve, effectively can control the flow of refrigerant in refrigerant branch road, thus control the temperature of arbitrary refrigerant pipeline, make the defrost speed of other refrigerant pipelines in arbitrary refrigerant pipeline and multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, in addition, the defrost speed of multiple refrigerant pipeline more evenly can also avoid in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, also comprise: one end of described refrigerant branch road is connected with described cross valve, the other end is connected with described arbitrary refrigerant pipeline.
Defrost rate adjustment device 200 according to an embodiment of the invention, one end of refrigerant branch road is connected with cross valve, the refrigerant through cross valve is made to flow through refrigerant branch road, and due to the refrigerant flowing through refrigerant branch road be the gas of HTHP, its air pressure is than the refrigerant inlet of arbitrary refrigerant pipeline, the pressure of any position of refrigerant exit or arbitrary refrigerant pipeline centre is all large, therefore, the other end of refrigerant branch road and the refrigerant inlet of arbitrary refrigerant pipeline, the any position of refrigerant exit or arbitrary refrigerant pipeline centre is connected and can flow in condenser, thus improve the utilization rate of refrigerant, and then improve the heating effect of air-conditioner.
Fig. 3 shows the structural representation of air-conditioner according to an embodiment of the invention.
As shown in Figure 3, air-conditioner 300 according to an embodiment of the invention, comprising: the defrost rate adjustment device 302 (being equivalent to the defrost rate adjustment device 200 in the embodiment shown in Fig. 2) as described in above-mentioned any one technical scheme; Throttling arrangement 304, one end of described throttling arrangement 304 is connected to described condenser, and the other end is connected to the evaporimeter 306 of described air-conditioner 300; Described evaporimeter 306, one end of described evaporimeter 306 is connected to described throttling arrangement 304, and the other end is connected to described cross valve; With compressor 308, be connected with described cross valve.
Air-conditioner 300 according to an embodiment of the invention, comprise: defrost rate adjustment device 302, circulate in refrigerant branch road for making refrigerant or forbid that refrigerant circulates in refrigerant branch road, defrost rate adjustment device 302 is for making the defrost speed of multiple refrigerant pipeline more even, thus decrease the defrost time of multiple refrigerant pipeline, can also avoid first completing in the refrigerant pipeline of defrost continues to have the refrigerant of HTHP to flow through simultaneously, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner 300, in addition, air-conditioner 300 also comprises: throttling arrangement 304, evaporimeter 306 and compressor 308, wherein, one end of throttling arrangement 304 is connected to condenser, the other end is connected to the evaporimeter 306 of air-conditioner 300, one end of evaporimeter 306 is connected to throttling arrangement 304, the other end is connected to cross valve, compressor 308 is connected with cross valve, and defrost rate adjustment device 302, throttling arrangement 304, evaporimeter 306 and compressor 308 not only ensure that refrigerant recycling in air-conditioner 300, what also assures that air-conditioner 300 normally heats work.
Fig. 4 shows the internal structure schematic diagram of air-conditioner according to another embodiment of the invention, and Fig. 5 shows the internal structure schematic diagram of air-conditioner according to still another embodiment of the invention.
Technical scheme of the present invention is described in detail below in conjunction with Fig. 4 and Fig. 5:
Air-conditioner 400 as shown in Figure 4 and Figure 5 and the internal structure of air-conditioner 500, include: defrost rate adjustment device 302, and defrost rate adjustment device 302 comprises: condenser 3022, cross valve 3024, electric expansion valve or electromagnetism on-off valve 3026, temperature sensing device 3028 and coolant distributor 30210, wherein, multiple refrigerant pipeline is provided with in condenser 3022, when the defrost speed of the arbitrary refrigerant pipeline in multiple refrigerant pipeline is less than or equal to scheduled rate (the defrost speed of refrigerant pipeline A is less than or equal to scheduled rate as determined), then add the refrigerant branch road be connected with refrigerant pipeline A between refrigerant pipeline A with cross valve 3024, and electric expansion valve or electromagnetism on-off valve 3026 are set on this refrigerant branch road, circulate in refrigerant branch road for making refrigerant or forbid that refrigerant circulates in refrigerant branch road, and on the refrigerant exit branch road B of refrigerant pipeline A, the first temperature sensing device is set, for detecting the first refrigerant temperature of the refrigerant in the refrigerant exit branch road B of refrigerant pipeline A, in multiple refrigerant pipeline, the refrigerant exit branch road of the target refrigerant pipeline that defrost speed is the fastest and refrigerant exit branch road C arrange the second temperature sensing device, to detect second refrigerant temperature (as shown in Figure 4) of the refrigerant in the refrigerant exit branch road C of target refrigerant pipeline, and the aperture of electric expansion valve on the refrigerant branch road that is connected with refrigerant pipeline A or electromagnetism on-off valve 3026 is determined according to the first refrigerant temperature and the second refrigerant temperature, thus make the defrost speed of multiple refrigerant pipeline more even.Certainly, according to the real-time requirement of air-conditioner, multiple refrigerant branch road can be added, and multiple temperature sensing device 3028, thus the defrost speed reaching multiple refrigerant pipeline is more even, reduces the object (as shown in Figure 5) of defrost time.
In technique scheme, according to the temperature of the refrigerant pipeline that temperature sensing device 3028 detects, determine the unlatching of electric expansion valve or electromagnetism on-off valve 3026, close or aperture size, effectively can control the flow of refrigerant in refrigerant branch road, thus control the temperature of arbitrary refrigerant pipeline, make the defrost speed of arbitrary refrigerant pipeline in multiple refrigerant pipeline more even, thus decrease the defrost time of arbitrary refrigerant pipeline, in addition, the defrost speed of multiple refrigerant pipeline more evenly can also avoid in the refrigerant pipeline first completing defrost and continue to have the refrigerant of HTHP to flow through, thus decrease scattering and disappearing of the heat of refrigerant, and then improve the heating effect of air-conditioner.
More than be described with reference to the accompanying drawings technical scheme of the present invention, by adding refrigerant branch road, the defrost speed of multiple refrigerant pipeline can be made more even, make multiple refrigerant pipeline substantially can complete defrost speed simultaneously, thus decrease the defrost time of multiple refrigerant pipeline, can also avoid first completing in the refrigerant pipeline of defrost continues to have the refrigerant of HTHP to flow through simultaneously, thus decreases scattering and disappearing of the heat of refrigerant, and then improves the heating effect of air-conditioner.
In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; Term " multiple " represents two or more; Term " is connected ", " connection " etc. all should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a defrost velocity regulating method, is characterized in that, comprising:
Determine the defrost speed of each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner;
Judge whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate, when judged result is for being, the refrigerant branch road be connected with described arbitrary refrigerant pipeline is added, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
2. defrost velocity regulating method according to claim 1, is characterized in that, also comprise:
Add the refrigerant branch road be connected with described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner after, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve.
3. defrost velocity regulating method according to claim 2, is characterized in that, also comprise:
After the described refrigerant branch road of interpolation, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline;
In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline;
The aperture of described electric expansion valve or described electromagnetism on-off valve is determined according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
4. defrost velocity regulating method according to claim 3, is characterized in that, the described aperture determining described electric expansion valve or described electromagnetism on-off valve according to described first refrigerant temperature and described second refrigerant temperature, specifically comprises:
If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to first preset the temperature difference, then closes described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve;
If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then open described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve, wherein, the described first default temperature difference is less than the described second default temperature difference.
5. defrost velocity regulating method according to any one of claim 1 to 4, is characterized in that, also comprise:
One end of described refrigerant branch road is connected with described cross valve, and the other end is connected with described arbitrary refrigerant pipeline.
6. a defrost rate adjustment device, is characterized in that, comprising:
Determining unit, determines the defrost speed of each refrigerant pipeline in the multiple refrigerant pipelines in the condenser in the off-premises station of air-conditioner;
Judging unit, judges whether the defrost speed of the arbitrary refrigerant pipeline in described multiple refrigerant pipeline is less than or equal to scheduled rate;
Processing unit, when judged result is for being, adds the refrigerant branch road be connected with described arbitrary refrigerant pipeline, to accelerate the defrost speed of described arbitrary refrigerant pipeline between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner; Otherwise, between the cross valve and described arbitrary refrigerant pipeline of described arbitrary refrigerant pipeline and described air-conditioner, do not add described refrigerant branch road.
7. defrost rate adjustment device according to claim 6, is characterized in that, also comprise:
Setting unit, after adding the refrigerant branch road be connected with described arbitrary refrigerant pipeline, described refrigerant branch road arranges electric expansion valve or electromagnetism on-off valve between described arbitrary refrigerant pipeline and the cross valve of described air-conditioner.
8. defrost rate adjustment device according to claim 7, is characterized in that, also comprise:
Described setting unit also for:
After the described refrigerant branch road of interpolation, the refrigerant exit branch road of described arbitrary refrigerant pipeline arranges the first temperature sensing device, to detect the first refrigerant temperature of the refrigerant in the refrigerant exit branch road of described arbitrary refrigerant pipeline;
In described multiple refrigerant pipeline the target refrigerant pipeline that defrost speed is the fastest refrigerant exit branch road on the second temperature sensing device is set, to detect the second refrigerant temperature of the refrigerant in the refrigerant exit branch road of described target refrigerant pipeline;
Described determining unit also for:
The aperture of described electric expansion valve or described electromagnetism on-off valve is determined according to described first refrigerant temperature and described second refrigerant temperature, wherein, one end of the refrigerant exit branch road of described arbitrary refrigerant pipeline is connected to described arbitrary refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner; One end of the refrigerant exit branch road of described target refrigerant pipeline is connected to described target refrigerant pipeline, and the other end is connected to the coolant distributor of described air-conditioner.
9. defrost rate adjustment device according to claim 8, is characterized in that,
Described determining unit concrete also for:
If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is less than or equal to first preset the temperature difference, then closes described electric expansion valve or described electromagnetism on-off valve, or reduce the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve;
If the temperature difference of described first refrigerant temperature and described second refrigerant temperature is more than or equal to second preset the temperature difference, then opens described electric expansion valve or described electromagnetism on-off valve, or increase the aperture of described electric expansion valve or the aperture of described electromagnetism on-off valve.
10. the defrost rate adjustment device according to any one of claim 6 to 9, is characterized in that, also comprise:
One end of described refrigerant branch road is connected with described cross valve, and the other end is connected with described arbitrary refrigerant pipeline.
11. 1 kinds of air-conditioners, is characterized in that, comprising:
Defrost rate adjustment device according to any one of claim 6 to 10;
Throttling arrangement, one end of described throttling arrangement is connected to described condenser, and the other end is connected to the evaporimeter of described air-conditioner;
Described evaporimeter, one end of described evaporimeter is connected to described throttling arrangement, and the other end is connected to described cross valve; With
Compressor, is connected with described cross valve.
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| CN109140725B (en) * | 2018-08-31 | 2021-01-05 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method thereof |
| CN114322207A (en) * | 2021-12-23 | 2022-04-12 | 珠海格力电器股份有限公司 | Defrosting control method of air conditioning system, air conditioning system and heat exchange assembly |
| CN114440401A (en) * | 2022-03-04 | 2022-05-06 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
| CN114440401B (en) * | 2022-03-04 | 2023-06-27 | 青岛海信日立空调系统有限公司 | Air source heat pump unit |
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| CN104634032B (en) | 2017-02-22 |
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