CN103954087A - Defrosting device, heat pump device, and defrosting method for defrosting device - Google Patents
Defrosting device, heat pump device, and defrosting method for defrosting device Download PDFInfo
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- CN103954087A CN103954087A CN201410215945.5A CN201410215945A CN103954087A CN 103954087 A CN103954087 A CN 103954087A CN 201410215945 A CN201410215945 A CN 201410215945A CN 103954087 A CN103954087 A CN 103954087A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000010257 thawing Methods 0.000 title abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 78
- 230000005494 condensation Effects 0.000 claims abstract description 21
- 238000009833 condensation Methods 0.000 claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 20
- 230000008020 evaporation Effects 0.000 claims abstract description 17
- 239000003507 refrigerant Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005057 refrigeration Methods 0.000 abstract description 8
- 238000004781 supercooling Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 238000005562 fading Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The invention discloses a defrosting device, a heat pump machine and a defrosting method of the defrosting device, and relates to the technical field of air conditioners. The problem of prior art can't make outdoor heat exchanger both satisfy when heating the operation improve the effect of defrosting, guarantee again that outdoor heat exchanger does not have any decay influence to the operation of refrigeration. The defrosting device comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor and a control valve, wherein the outdoor heat exchanger comprises a first functional part and a second functional part, when the control valve is in a first state, the first functional part can perform sensible heat releasing operation on passing fluid, and the second functional part can perform supercooling heat releasing operation on the passing fluid. When the control valve is in the second state, the first function part can perform evaporation heat absorption operation on the passing fluid, and the second function part can perform condensation heat release operation on the passing fluid. The outdoor heat exchanger can not only meet the requirement of improving defrosting effect in heating operation, but also ensure no attenuation influence on refrigerating operation.
Description
Technical field
The present invention relates to air-conditioning technical field, relate in particular to a kind of defroster, the heat pump machine of this defroster and the Defrost method of defroster are set.
Background technology
Frosting is the serious problems that heat pump machine faces, and not only affects the stable operation of heat pump machine, and users'comfort is had to adverse influence.Improve heat pump machine frosting situation under low temperature condition and be conducive to improve heating capacity, guarantee system stable operation.
At present, heat pump machine is all condenser and (is specially: indoor heat exchanger) too small, after condensation, degree of supercooling is less, make overall efficiency low, and evaporimeter (is specially: outdoor heat exchanger) relatively large, in the winter of severe cold, in the low situation of outdoor temperature, evaporating temperature becomes lower and causes on outdoor heat exchanger frosting serious.For solving the serious defect of frosting, prior art provides a kind of hot-gas bypass and surface cooler supercooling defrosting device, and this device has increased super cooled sect in the bottom of evaporimeter, to realize the object that reduces frosting speed.
The applicant's discovery, at least there is following technical problem in prior art:
1, prior art is to use for heat supplying air conditioning, the suitable situation of heat pump machine in heating condition that be applied to only, owing to not considering super cooled sect that outdoor heat exchanger bottom the increases flow direction when the refrigerating operaton, for there is the refrigeration air-conditioner of cooling condition, when refrigeration air-conditioner is under cooling condition, cannot overcome the technical problem that outdoor heat exchanger degree of supercooling cannot be satisfied.
2, for realize outer machine heat exchanger bottom as indoor heat exchanger (abbreviation: the interior machine) super cooled sect of condensation, in prior art, with magnetic valve and control coil, realize switching, cost increase is larger.
Summary of the invention
One of them object of the present invention is the Defrost method that proposes a kind of defroster, heat pump machine and this defroster, solved the effect of improving defrost when prior art cannot make outdoor heat exchanger both meet heating operation, guarantee again to refrigerating operaton without any the technical problem of influence of fading.Many technique effects that optimal technical scheme of the present invention can produce refer to below sets forth.
For achieving the above object, the invention provides following technical scheme:
The defroster that the embodiment of the present invention provides, comprises indoor heat exchanger, outdoor heat exchanger, compressor and control valve, and described outdoor heat exchanger comprises the first funtion part and the second funtion part, wherein:
Described control valve is arranged on fluid issuing, fluid inlet and described indoor heat exchanger, the pipeline between described the first funtion part of described compressor;
Described the first funtion part and described the second funtion part between the two and described the second funtion part by conduction pipe, be connected between the two with described indoor heat exchanger;
The duty of described control valve comprises the first state and the second state,
When described control valve is during in the first state, the pipeline conducting between the fluid issuing of described compressor and described the first funtion part, the pipeline conducting between the fluid inlet of described compressor and described indoor heat exchanger; Described the first funtion part can be carried out sensible heat heat release operation to the fluid of process, and described the second funtion part can be carried out cold heat release operation to the fluid of process;
When described control valve is during in the second state, pipeline conducting between the fluid issuing of described compressor and described indoor heat exchanger, pipeline conducting between the fluid inlet of described compressor and described the first funtion part, pipeline cut-off between the fluid issuing of described compressor and described the first funtion part, the pipeline cut-off between the fluid inlet of described compressor and described indoor heat exchanger; Described the first funtion part can be carried out evaporation endothermic operation to the fluid of process, and described the second funtion part can be carried out condensation heat release operation to the fluid of process.
At one preferably or alternatively in embodiment, on described conduction pipe, be provided with restricting element, described control valve is when the first state, and the fluid (this fluid also can be via the direct fluid of the described restricting element of input after described the second funtion part) of inputting described restricting element via described the second funtion part and described conduction pipe is successively inputted described indoor heat exchanger by described conduction pipe after described restricting element;
Described control valve is when the second state, and the fluid (this fluid also can be via the direct fluid of the described restricting element of input after described the second funtion part) of inputting described restricting element via described the second funtion part and described conduction pipe is successively inputted described the first funtion part by described conduction pipe after described restricting element.
At one, preferably or alternatively in embodiment, described restricting element is electric expansion valve.
At one, preferably or alternatively in embodiment, described conduction pipe comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve, wherein:
The going out stream end both be in parallel and be all connected with one of them in two ports of described the first funtion part of the influent stream end of described the first check valve and described the second check valve, in two ports of described the first funtion part wherein another is connected by pipeline with described control valve;
The influent stream end of described the second check valve is connected with the influent stream end that goes out stream end and described the 3rd check valve of described restricting element respectively;
The stream end that goes out of described the first check valve is connected with one of them in two ports that go out stream end and described the second funtion part of described the 4th check valve respectively, in two ports of described the second funtion part wherein another is connected with the influent stream end of described restricting element;
The stream end that goes out of described the 3rd check valve is connected with one of them in the influent stream end of described the 4th check valve and two ports of described indoor heat exchanger respectively, in two ports of described indoor heat exchanger wherein another is connected by pipeline with described control valve.
At one, preferably or alternatively in embodiment, described control valve is solenoid operated four-way valve.
At one, preferably or alternatively in embodiment, described the first funtion part connects or by Heat Conduction Material, is connected between the two with described the second funtion part.
At one, preferably or alternatively in embodiment, described the first funtion part is arranged on the top of described the second funtion part.
The heat pump machine that the embodiment of the present invention provides, comprises the defroster defroster that the arbitrary technical scheme of the invention described above provides.
The Defrost method of the defroster that the embodiment of the present invention provides, at least comprises the following steps:
The first funtion part that refrigerant vapour is imported to outdoor heat exchanger is carried out sensible heat heat release operation;
The second funtion part that the fluid of described the first funtion part output is imported to described outdoor heat exchanger was carried out cold heat release operation;
The fluid of described the second funtion part output is imported to indoor heat exchanger and carry out evaporation endothermic operation.
At one, preferably or alternatively in embodiment, the Defrost method of described defroster is further comprising the steps of:
Refrigerant vapour is imported to described indoor heat exchanger and carry out condensation heat release operation;
The fluid of described indoor heat exchanger output is imported to described the second funtion part and carry out condensation heat release operation;
The fluid of described the second funtion part output is imported to described the first funtion part and carry out evaporation endothermic operation;
Utilize heat that described the second funtion part discharges to the operation that defrosts of described outdoor heat exchanger.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
In the defroster that the embodiment of the present invention provides, outdoor heat exchanger has been carried out to segment processing, outdoor heat exchanger is divided for the first funtion part and the second funtion part, first funtion part (being preferably top) of outdoor heat exchanger can be carried out sensible heat heat release operation to the fluid of process, second funtion part (being preferably bottom) of outdoor heat exchanger can be carried out cold heat release operation to the fluid of process (being preferably cold-producing medium), so when control valve is during in the first state, start compressor, the refrigerant vapour of the fluid issuing output of compressor is successively through the first funtion part, meeting sensible heat heat release during the second funtion part, thereby cross cold heat release heat radiation, the lower cold-producing medium of temperature that has distributed heat enters after indoor heat exchanger, can absorb comparatively efficiently the heat in indoor heat exchanger, thereby can reach good refrigeration indoor, guaranteed thus outdoor heat exchanger after segmentation to refrigerating operaton without any influence of fading, simultaneously, when the present invention heats operation, the second funtion part can be carried out condensation heat release operation, the first funtion part can be carried out evaporation endothermic operation, the heat that the second funtion part discharges can meet outdoor heat exchanger and when heating operation, improve the effect of defrost.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The rough schematic view of annexation between the parts of the defroster that Fig. 1 provides for preferred embodiment of the present invention cold-producing medium process when cooling condition;
The schematic diagram of the defroster that Fig. 2 provides for preferred embodiment of the present invention flow direction of cold-producing medium when cooling condition;
The schematic diagram of the defroster that Fig. 3 provides for preferred embodiment of the present invention flow direction of cold-producing medium when heating condition;
The rough schematic view of annexation between the parts of the defroster that Fig. 4 provides for preferred embodiment of the present invention cold-producing medium process when heating condition;
Reference numeral: 1, compressor; 2, control valve (specifically can be cross valve); 3, restricting element; 41, indoor heat exchanger; 42, outdoor heat exchanger; 5, the first funtion part; 6, the second funtion part; 7, the first check valve; 8, the second check valve; 9, the 3rd check valve; 10, the 4th check valve.
The specific embodiment
Can understand the distinctive points between content of the present invention and the present invention and prior art with reference to accompanying drawing Fig. 1～Fig. 4 and word content below.Below, by accompanying drawing and the mode of enumerating optional embodiment more of the present invention, technical scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characterictic in the present embodiment, any technical scheme is all the technical characterictic of plurality of optional or one or more in optional technical scheme, cannot exhaustive all alternative technical characterictics of the present invention and alternative technical scheme in order to describe succinct need in presents, also the embodiment that is not easy to each technical characterictic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means provided by the invention can be replaced or arbitrarily two or more technological means provided by the invention or technical characterictic are combined mutually and obtain new technical scheme.Any technical characterictic and any technical scheme in the present embodiment all do not limit the scope of the invention, protection scope of the present invention should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art two or more technological means arbitrarily provided by the invention or technical characterictic are combined mutually and the new technical scheme that obtains.
The embodiment of the present invention provides a kind of outdoor heat exchanger segment processing, both in the time of can meeting heating operation, improve the effect of defrost, can guarantee again outdoor heat exchanger after segmentation to refrigerating operaton without any influence of fading defroster, the heat pump machine of this defroster and the Defrost method of defroster are set.
Below in conjunction with Fig. 1～Fig. 4, technical scheme provided by the invention is carried out to more detailed elaboration.In Fig. 1～Fig. 4, the direction of arrow represents the flow direction of this defroster inner fluid (being preferably cold-producing medium).
The embodiment of refrigerating part:
As shown in Figure 1, the defroster that the embodiment of the present invention provides, comprise indoor heat exchanger (or claiming: indoor set heat exchanger, indoor heat exchanging pipe) 41, outdoor heat exchanger (or claiming: outdoor unit heat exchanger, outdoor heat exchange pipeline) 42, compressor 1 and control valve 2, control valve 2 can be hand-operated valve or solenoid operated four-way valve, outdoor heat exchanger 42 comprises the first funtion part (being preferably top) 5 and the second funtion part (being preferably bottom) 6, wherein:
Control valve 2 is arranged on fluid issuing, fluid inlet and indoor heat exchanger 41, the pipeline between the first funtion part 5 of compressor 1.
The first funtion part 5 and the second funtion part 6 between the two and the second funtion part 6 by conduction pipe (preferred embodiment of conduction pipe will be explained below), be connected between the two with indoor heat exchanger 41.
The duty of control valve 2 comprises the first state and the second state, control valve 2 when the first state, the pipeline conducting between the fluid issuing of compressor 1 and the first funtion part 5, the pipeline conducting between the fluid inlet of compressor 1 and indoor heat exchanger 41.
The first funtion part 5 can be carried out sensible heat heat release operation to the fluid of process (this fluid is preferably cold-producing medium), and the second funtion part 6 can be carried out cold heat release operation to the fluid of process.
In the defroster that the embodiment of the present invention provides, first funtion part (Figure 1 shows that top) 5 of outdoor heat exchanger 42 can be carried out sensible heat heat release operation to the fluid of process, second funtion part (Figure 1 shows that bottom) 6 of outdoor heat exchanger 42 can be carried out cold heat release operation to the fluid of process, so when control valve 2 is during in the first state, start compressor 1, thereby the refrigerant vapour of the fluid issuing of compressor 1 output can sensible heat heat release during successively through the first funtion part 5, the second funtion part 6, cross cold heat release heat radiation, avoids the generation of frost.Meanwhile, the lower cold-producing medium of temperature that has distributed heat enters after indoor heat exchanger 41, can absorb comparatively efficiently the heat in indoor heat exchanger 41, thereby can reach good refrigeration indoor.In the present embodiment, on conduction pipe, be provided with restricting element 3, restricting element 3 is preferably electric expansion valve.When control valve 2 is during in the first state, successively via the fluid of the second funtion part 6 and conduction pipe input restricting element 3 after restricting element 3 by conduction pipe input indoor heat exchanger 41.
Restricting element 3 has the effect that reduces refrigerant vapour pressure.Electric expansion valve has advantages of to be convenient to control.
One of them in the present embodiment in two ports of the influent stream end of restricting element 3 and the second funtion part 6 is connected, in two ports of the second funtion part 6 wherein another is connected with one of them in two ports of the first funtion part 5, in two ports of the first funtion part 5 wherein another is connected by pipeline with control valve 2.
A wherein port in two ports that go out stream end and indoor heat exchanger 41 of restricting element 3 is connected, and the another port in two ports of indoor heat exchanger 41 is connected by pipeline with control valve 2.
In said structure, restricting element 3 can carry out step-down operation to the cold-producing medium through heat release operation, then to the cold-producing medium input indoor heat exchanger 41 after step-down.
In the present embodiment the first funtion part 5 and the second funtion part 6 both connect or by Heat Conduction Material, be connected between the two.When the first funtion part 5 and the second funtion part 6, both connect or by Heat Conduction Material, are connected between the two, and the heat that in both, the more part of distribute heat is distributed can be to the operation that defrosts of whole outdoor heat exchanger 42.
In the present embodiment the first funtion part 5 be arranged on the second funtion part 6 above or below, be preferably the top that is arranged on the second funtion part 6.
Owing to carrying the thermal current of heat, can rise from the bottom up, when the first funtion part 5 is arranged on the top of the second funtion part 6, when this defroster is applied to heat pump machine and heats operation, the heat that the second funtion part 6 of below is distributed can be realized defrosting operation preferably.When the first funtion part 5 is arranged on the below of the second funtion part 6, when this defroster freezes operation, the heat that the first funtion part 5 of below is distributed can be realized defrosting operation preferably.
Preferred embodiment and preferred embodiment:
As shown in Figures 2 and 3, the defroster that the embodiment of the present invention provides, comprises indoor heat exchanger 41, outdoor heat exchanger 42, compressor 1 and control valve 2, and control valve 2 can be cross valve, and control valve 2 is preferably solenoid operated four-way valve.Outdoor heat exchanger 42 comprises the first funtion part (being preferably top) 5 and the second funtion part (being preferably bottom) 6, wherein: control valve 2 is arranged on fluid issuing, fluid inlet and indoor heat exchanger 41, the pipeline between the first funtion part 5 of compressor 1.
The first funtion part 5 and the second funtion part 6 between the two and the second funtion part 6 by conduction pipe, be connected between the two with indoor heat exchanger 41.
The duty of control valve 2 comprises the first state and the second state,
When control valve 2 is during as shown in Figure 2 in the first state, the pipeline conducting between the fluid issuing of compressor 1 and the first funtion part 5, the pipeline conducting between the fluid inlet of compressor 1 and indoor heat exchanger 41.The first funtion part 5 can be carried out sensible heat heat release operation to the fluid of process, and the second funtion part 6 can be carried out cold heat release operation to the fluid of process.
When control valve 2 is during as shown in Figure 3 and Figure 4 in the second state, pipeline conducting between the fluid issuing of compressor 1 and indoor heat exchanger 41, pipeline conducting between the fluid inlet of compressor 1 and the first funtion part 5, pipeline cut-off between the fluid issuing of compressor 1 and the first funtion part 5, the pipeline cut-off between the fluid inlet of compressor 1 and indoor heat exchanger 41.The first funtion part 5 can be carried out evaporation endothermic operation to the fluid of process, and the second funtion part 6 can be carried out condensation heat release operation to the fluid of process.
Now, this defroster can be realized the defrosting operation under heating condition.Start compressor 1, the refrigerant vapour of the fluid issuing output of compressor 1 can carry out condensation heat release operation while passing through indoor heat exchanger 41 successively, the heat that the refrigerant vapour of process indoor heat exchanger 41 distributes can make indoor temperature raise, cold-producing medium is when indoor heat exchanger 41 flows out and pass through the second funtion part 6 of outdoor heat exchanger 42, can carry out further condensation heat release operation, the heat that the second funtion part 6 of outdoor heat exchanger 42 is distributed can provide heat to the top of outdoor heat exchanger 42 evaporation process that next the first funtion part 5 carries out.By this special construction, can improve evaporating temperature and the evaporating pressure of this outdoor heat exchanger, reduce frosting degree, through the cold-producing medium of the second funtion part 6 of outdoor heat exchanger 42, through the first funtion part 5, carry out finally can flowing back to compressor 1 after evaporation endothermic operation.
In the present embodiment, on conduction pipe, be provided with restricting element 3, restricting element 3 can be electric expansion valve.Control valve 2, when the first state, is inputted indoor heat exchanger 41 by conduction pipe via the fluid of the second funtion part 6 and conduction pipe input restricting element 3 successively after restricting element 3.Control valve 2, when the second state, is inputted first funtion part 5 by conduction pipe via the fluid of the second funtion part 6 and conduction pipe input restricting element 3 successively after restricting element 3.
Restricting element 3 has the effect that reduces refrigerant vapour pressure.Electric expansion valve has advantages of to be convenient to control.
In the present embodiment, conduction pipe comprises the first check valve 7, the second check valve 8, the 3rd check valve 9 and the 4th check valve 10, wherein:
The going out stream end both be in parallel and be all connected with one of them in two ports of the first funtion part 5 of the influent stream end of the first check valve 7 and the second check valve 8, in two ports of the first funtion part 5 wherein another is connected by pipeline with control valve 2.
The influent stream end of the second check valve 8 is connected with the influent stream end that goes out stream end and the 3rd check valve 9 of restricting element 3 respectively.
The stream end that goes out of the first check valve 7 is connected with one of them in two ports that go out stream end and the second funtion part 6 of the 4th check valve 10 respectively, in two ports of the second funtion part 6 wherein another is connected with the influent stream end of restricting element 3.
The stream end that goes out of the 3rd check valve 9 is connected with one of them in the influent stream end of the 4th check valve 10 and two ports of indoor heat exchanger 41 respectively, in two ports of indoor heat exchanger 41 wherein another is connected by pipeline with control valve 2.
Above-mentioned four check valves are compared with the magnetic valve conventionally adopting in prior art to be had with low costly, is convenient to the advantage connecting.
During connecting, above-mentioned pipeline changes the flow direction of the cold-producing medium that enters outdoor heat exchanger 42 by four check valves, when cold-producing medium is that outdoor heat exchanger 42 pipeline bottoms are when enter (as heating mode) from the second funtion part 6 of outdoor heat exchanger 42, the second funtion part 6 of outdoor heat exchanger 42 bottoms has just been equivalent to form an extra cool condenser excessively, cold-producing medium is in the further condensation heat release of the second funtion part 6 of outdoor heat exchanger 42, the temperature that has guaranteed condenser is high, when cold-producing medium is to evaporate in outdoor heat exchanger 42 upper strata pipelines through restricting element 3 in the first funtion part 5 of outdoor heat exchanger 42, the second funtion part 6 of bottom is owing to there being continuous condensation waste heat to exist, so although whole outdoor heat exchanger 42 is in evaporation low-temperature condition, but compared to existing technology, the outdoor heat exchanger monoblock of heat pump machine is as outdoor heat exchanger 42 frostings of condenser, the effect of the present invention's defrosting has obtained very large lifting.
When cold-producing medium is that pipeline top enters (as refrigeration mode) from the first funtion part 5 of outdoor heat exchanger 42, above-mentioned outdoor heat exchanger 42 can have been given play to the effectiveness of the entire area of condenser again completely, the impact of condensation effect while not affecting refrigeration.Specific implementation: first cold-producing medium is to carry out sensible heat heat release in upper pipeline in the first funtion part 5 of outdoor heat exchanger 42, the second funtion part 6 that enters subsequently outdoor heat exchanger 42 be bottom pipeline in the cold heat release of further mistake, pass through again subsequently restricting element 3 evaporation endothermic in indoor heat exchanger 41.
In the present embodiment the first funtion part 5 and the second funtion part 6 both can be two parts of existing overall heat exchange device, or between the two by Heat Conduction Material (for example: heat conductive rubber) be connected.In the present embodiment, the first funtion part 5 can be arranged on the top of the second funtion part 6.
With the embodiment of above-mentioned refrigerating part in like manner, owing to carrying the thermal current of heat, can rise from the bottom up, when the first funtion part 5 is arranged on the top of the second funtion part 6, when this defroster is applied to heat pump machine and heats operation, the heat that the second funtion part 6 of below is distributed can be realized defrosting operation preferably.
The heat pump machine that the embodiment of the present invention provides, comprises the defroster that the arbitrary technical scheme of the invention described above preferred embodiment provides.
The heat pump machine that the embodiment of the present invention provides had not only guaranteed not affect the heat transfer effect of existing condenser when refrigerating operaton but also had guaranteed to improve the defrosting operation of carrying out under heating condition.
Below concentrate two kinds of mode of operations setting forth heat pump machine provided by the invention:
1, refrigeration mode: high temperature refrigerant steam (or claims: the first funtion part 5 that high-temperature exhaust air) directly imports outdoor heat exchanger 42 is carried out condensation heat release, through the first check valve 7 heat conduction, to outdoor heat exchanger 42 second funtion parts 6, carry out further crossing cold solidifying subsequently, complete condensed cold-producing medium after the reducing pressure by regulating flow at restricting element 3, by the 3rd check valve 9, enter evaporation endothermic in indoor heat exchanger 41, get back to subsequently compressor 1.
2, heating mode: the high-temperature exhaust air of compressor 1 directly enters and carries out condensation heat release in indoor heat exchanger 41, through the 4th check valve 10, enter subsequently the further condensation of the second funtion part 6 of outdoor heat exchanger 42, complete further condensed cold-producing medium and enter restricting element 3 reducing pressure by regulating flows, by the second check valve 8, enter afterwards the first funtion part 5 evaporation endothermics of outdoor heat exchanger 42, finally from the first funtion part 5 outflows of outdoor heat exchanger 42, by compressor 1, sucked.
The Defrost method of the defroster that the embodiment of the present invention provides, at least comprises the following steps:
The first funtion part 5 that refrigerant vapour is imported to outdoor heat exchanger 42 is carried out sensible heat heat release operation.
The second funtion part 6 that the fluid of the first funtion part 5 outputs is imported to outdoor heat exchanger 42 was carried out cold heat release operation.
The fluid of the second funtion part 6 outputs is imported to indoor heat exchanger 41 and carry out evaporation endothermic operation.The Defrost method of the defroster that the embodiment of the present invention provides is further comprising the steps of:
Refrigerant vapour is imported to indoor heat exchanger 41 and carry out condensation heat release operation.
The fluid of indoor heat exchanger 41 outputs is imported to the second funtion part 6 and carry out condensation heat release operation.
The fluid of the second funtion part 6 outputs is imported to the first funtion part 5 and carry out evaporation endothermic operation.
Utilize heat that the second funtion part 6 discharges to outdoor heat exchanger 42 operation that defrosts.
Said method can be realized the operation that defrosts when heating condition.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range is only the obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, cannot be exhaustive, so the present invention just discloses part numerical value to illustrate technical scheme of the present invention, and the above-mentioned numerical value of enumerating should not form the restriction to the invention protection domain.
If used the words such as " first ", " second " to limit parts herein, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe above parts are distinguished as not having outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if the invention described above discloses or has related to parts or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can dismantle and be fixedly connected with (for example using bolt or screw to connect), also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously cannot adopt except integrally formed technique) by integral type structure (use casting technique is integrally formed to be created).
In addition, in the disclosed arbitrary technical scheme of the invention described above applied for the term that represents position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts provided by the invention can be both to be assembled by a plurality of independent parts, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. a defroster, is characterized in that, comprises indoor heat exchanger, outdoor heat exchanger, compressor and control valve, and described outdoor heat exchanger comprises the first funtion part and the second funtion part, wherein:
Described control valve is arranged on fluid issuing, fluid inlet and described indoor heat exchanger, the pipeline between described the first funtion part of described compressor;
Described the first funtion part and described the second funtion part between the two and described the second funtion part by conduction pipe, be connected between the two with described indoor heat exchanger;
The duty of described control valve comprises the first state and the second state,
When described control valve is during in the first state, the pipeline conducting between the fluid issuing of described compressor and described the first funtion part, the pipeline conducting between the fluid inlet of described compressor and described indoor heat exchanger; Described the first funtion part can be carried out sensible heat heat release operation to the fluid of process, and described the second funtion part can be carried out cold heat release operation to the fluid of process;
When described control valve is during in the second state, pipeline conducting between the fluid issuing of described compressor and described indoor heat exchanger, pipeline conducting between the fluid inlet of described compressor and described the first funtion part, pipeline cut-off between the fluid issuing of described compressor and described the first funtion part, the pipeline cut-off between the fluid inlet of described compressor and described indoor heat exchanger; Described the first funtion part can be carried out evaporation endothermic operation to the fluid of process, and described the second funtion part can be carried out condensation heat release operation to the fluid of process.
2. defroster according to claim 1, it is characterized in that, on described conduction pipe, be provided with restricting element, described control valve is when the first state, and the fluid of inputting described restricting element via described the second funtion part and described conduction pipe is successively inputted described indoor heat exchanger by described conduction pipe after described restricting element;
Described control valve is when the second state, and the fluid of inputting described restricting element via described the second funtion part and described conduction pipe is successively inputted described the first funtion part by described conduction pipe after described restricting element.
3. defroster according to claim 2, is characterized in that, described restricting element is electric expansion valve.
4. defroster according to claim 2, is characterized in that, described conduction pipe comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve, wherein:
The going out stream end both be in parallel and be all connected with one of them in two ports of described the first funtion part of the influent stream end of described the first check valve and described the second check valve, in two ports of described the first funtion part wherein another is connected by pipeline with described control valve;
The influent stream end of described the second check valve is connected with the influent stream end that goes out stream end and described the 3rd check valve of described restricting element respectively;
The stream end that goes out of described the first check valve is connected with one of them in two ports that go out stream end and described the second funtion part of described the 4th check valve respectively, in two ports of described the second funtion part wherein another is connected with the influent stream end of described restricting element;
The stream end that goes out of described the 3rd check valve is connected with one of them in the influent stream end of described the 4th check valve and two ports of described indoor heat exchanger respectively, in two ports of described indoor heat exchanger wherein another is connected by pipeline with described control valve.
5. defroster according to claim 1, is characterized in that, described control valve is solenoid operated four-way valve.
6. defroster according to claim 1, is characterized in that, described the first funtion part connects or by Heat Conduction Material, is connected between the two with described the second funtion part.
7. according to the arbitrary described defroster of claim 1-6, it is characterized in that, described the first funtion part is arranged on the top of described the second funtion part.
8. a heat pump machine, is characterized in that, comprises the arbitrary described defroster of claim 1-7.
9. a Defrost method for defroster, is characterized in that, at least comprises the following steps:
The first funtion part that refrigerant vapour is imported to outdoor heat exchanger is carried out sensible heat heat release operation;
The second funtion part that the fluid of described the first funtion part output is imported to described outdoor heat exchanger was carried out cold heat release operation;
The fluid of described the second funtion part output is imported to indoor heat exchanger and carry out evaporation endothermic operation.
10. the Defrost method of defroster according to claim 9, is characterized in that, the Defrost method of described defroster is further comprising the steps of:
Refrigerant vapour is imported to described indoor heat exchanger and carry out condensation heat release operation;
The fluid of described indoor heat exchanger output is imported to described the second funtion part and carry out condensation heat release operation;
The fluid of described the second funtion part output is imported to described the first funtion part and carry out evaporation endothermic operation;
Utilize heat that described the second funtion part discharges to the operation that defrosts of described outdoor heat exchanger.
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| CN201410215945.5A CN103954087B (en) | 2014-05-21 | 2014-05-21 | Defrosting device, heat pump device, and defrosting method for defrosting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123499A (en) * | 1992-10-12 | 1994-05-06 | Hitachi Ltd | Air conditioner |
| CN200955881Y (en) * | 2006-01-05 | 2007-10-03 | 南京天加空调设备有限公司 | Continuous defrosting and heating air source heat pump |
| CN201093795Y (en) * | 2007-06-06 | 2008-07-30 | 西安建筑科技大学 | Dual-purpose heat pump for winter and summer |
| CN101806519A (en) * | 2010-04-19 | 2010-08-18 | 广东吉荣空调有限公司 | Wide-temperature high-efficiency air source heat pump unit with anti-frosting function and operating method thereof |
| WO2013001976A1 (en) * | 2011-06-28 | 2013-01-03 | ダイキン工業株式会社 | Air conditioner |
| CN203478750U (en) * | 2013-09-12 | 2014-03-12 | 海信（山东）空调有限公司 | Refrigerating system with defrosting function and air conditioner |
| CN203908147U (en) * | 2014-05-21 | 2014-10-29 | 珠海格力电器股份有限公司 | Defrosting device and heat pump |
-
2014
- 2014-05-21 CN CN201410215945.5A patent/CN103954087B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123499A (en) * | 1992-10-12 | 1994-05-06 | Hitachi Ltd | Air conditioner |
| CN200955881Y (en) * | 2006-01-05 | 2007-10-03 | 南京天加空调设备有限公司 | Continuous defrosting and heating air source heat pump |
| CN201093795Y (en) * | 2007-06-06 | 2008-07-30 | 西安建筑科技大学 | Dual-purpose heat pump for winter and summer |
| CN101806519A (en) * | 2010-04-19 | 2010-08-18 | 广东吉荣空调有限公司 | Wide-temperature high-efficiency air source heat pump unit with anti-frosting function and operating method thereof |
| WO2013001976A1 (en) * | 2011-06-28 | 2013-01-03 | ダイキン工業株式会社 | Air conditioner |
| CN203478750U (en) * | 2013-09-12 | 2014-03-12 | 海信（山东）空调有限公司 | Refrigerating system with defrosting function and air conditioner |
| CN203908147U (en) * | 2014-05-21 | 2014-10-29 | 珠海格力电器股份有限公司 | Defrosting device and heat pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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|---|---|
| CN103954087B (en) | 2016-03-23 |
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