CN206875758U - A kind of heat exchanger and heat pump air conditioner - Google Patents
A kind of heat exchanger and heat pump air conditioner Download PDFInfo
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- CN206875758U CN206875758U CN201720817634.5U CN201720817634U CN206875758U CN 206875758 U CN206875758 U CN 206875758U CN 201720817634 U CN201720817634 U CN 201720817634U CN 206875758 U CN206875758 U CN 206875758U
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Abstract
A kind of heat exchanger, heat pump air conditioner and control method disclosed in the utility model embodiment, the heat exchanger include the first heat exchange unit positioned at windward side；Positioned at the second heat exchange unit of leeward side, the first heat exchange unit and the second heat exchange unit are serially connected, and the first heat exchange unit and the second heat exchange unit can be exchanged heat with air intake successively；The first throttle device being connected between the first heat exchange unit and the second heat exchange unit.During by heat exchanger applications of the present utility model to heat pump air conditioner, refrigerant during heating continues to condense into the first heat exchange unit, after the throttling of first throttle device, is evaporated into the second heat exchange unit.In the process, after outdoor air first passes around the heating of the first heat exchange unit, improve EAT, again pass through the second heat exchange unit, because the air themperature for flowing through the second heat exchange unit is higher, so that the basic frost-free of the second heat exchange unit or slow frosting, ensure that the evaporation effect of refrigerant in outdoor heat exchanger.
Description
Technical field
Air-conditioning technical field is the utility model is related to, more specifically to a kind of heat exchanger and heat pump air conditioner.
Background technology
When heat pump air conditioner heats in the winter time, because outdoor heat exchanger temperature is relatively low, frosting can be produced.If defrost is too late
When, it will the evaporation effect of outdoor heat exchanger is influenceed, causes the heating capacity of heat pump air conditioner to be decayed.
Therefore, the heating capacity decay of heat pump air conditioner how is reduced, turns into those skilled in the art's skill urgently to be resolved hurrily
Art problem.
Utility model content
In view of this, technical problem to be solved in the utility model is that the heating capacity for how reducing heat pump air conditioner declines
Subtract, therefore, the utility model provides a kind of heat exchanger and heat pump air conditioner.
To achieve the above object, the utility model provides following technical scheme：
A kind of heat exchanger, including：
Positioned at the first heat exchange unit of windward side；
Positioned at the second heat exchange unit of leeward side, second heat exchange unit is serially connected with first heat exchange unit,
And first heat exchange unit and second heat exchange unit can be exchanged heat with air intake successively；And
The first throttle device being connected between first heat exchange unit and second heat exchange unit.
Preferably, in above-mentioned heat exchanger, the refrigerant flow in first heat exchange unit is one or more；Described
Refrigerant flow in two heat exchange units is one or more.
Preferably, in above-mentioned heat exchanger, refrigerant flow is by one or more described in the first heat exchange unit Zhong Ge roads
Bar refrigerant pipe is in series, and all refrigerant pipes in first heat exchange unit are in single arrangement or arranged in rows；
The second heat exchange unit Zhong Ge road refrigerant flows are in series by one or more refrigerant pipe, in second heat exchange unit
All refrigerant pipes be in single arrangement or arranged in rows.
Preferably, in above-mentioned heat exchanger, first heat exchange unit and second heat exchange unit are by same housing bag
Enclose, or first heat exchange unit and second heat exchange unit are each surrounded by different housings.
Preferably, in above-mentioned heat exchanger, the heat exchanger is outdoor heat exchanger.
The invention also discloses a kind of heat pump air conditioner, including compressor, four-way reversing valve, indoor heat exchanger and room
External heat exchanger, the outdoor heat exchanger are the heat exchanger described in any of the above-described, and the first heat exchange in the outdoor heat exchanger is single
First to be connected with the indoor heat exchanger, the second heat exchange unit in the outdoor heat exchanger connects with the four-way reversing valve.
Preferably, in above-mentioned heat pump air conditioner, first heat exchange unit passes through second throttling device and the interior
Heat exchanger connects.
Preferably, in above-mentioned heat pump air conditioner, the first throttle device and the second throttling device are adjustable
Flow device.
It can be seen from the above technical scheme that when outdoor heat exchanger of the present utility model is applied into heat pump air conditioner, system
Refrigerant when hot continues to condense into the first heat exchange unit, after the throttling of first throttle device, into the second heat exchange unit
It is evaporated.In the process, after outdoor air first passes around the heating of the first heat exchange unit, EAT is improved, is again passed through
Second heat exchange unit, because the air themperature for flowing through the second heat exchange unit is higher so that the basic frost-free of the second heat exchange unit or
Slow frosting, it ensure that the evaporation effect of refrigerant in outdoor heat exchanger.Therefore, reduced using outdoor heat exchanger of the present utility model
The decay of the heating capacity of heat pump air conditioner.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for heat exchanger that Fig. 1 is provided by the utility model embodiment；
The structural representation of refrigerant flow inside a kind of heat exchanger that Fig. 2 is provided by the utility model embodiment；
The structural representation for another heat exchanger that Fig. 3 is provided by the utility model embodiment；
The structural representation of refrigerant flow inside another heat exchanger that Fig. 4 is provided by the utility model embodiment；
A kind of schematic diagram of refrigerating for heat pump air conditioner that Fig. 5 is provided by the utility model embodiment；
A kind of heating schematic diagram for heat pump air conditioner that Fig. 6 is provided by the utility model embodiment；
The schematic diagram of refrigerating for another heat pump air conditioner that Fig. 7 is provided by the utility model embodiment；
The heating schematic diagram for another heat pump air conditioner that Fig. 8 is provided by the utility model embodiment.
Wherein, 100 it is compressor, 200 be four-way reversing valve, 300 be indoor heat exchanger, 400 is outdoor heat exchanger, 500
It is second throttling device for first throttle device, 600,401 be the first heat exchange unit, 402 be the second heat exchange unit, 403 is shell
Body, 41 be total refrigerant pipe, 42 be refrigerant pipe.
Embodiment
First core of the present utility model is to provide a kind of heat exchanger, declined with reducing the heating capacity of heat pump air conditioner
Subtract；Second core of the present utility model is to provide a kind of heat pump air conditioner.
Hereinafter, embodiment is illustrated referring to the drawings.In addition, embodiments illustrated below is not to described in claim
Utility model content rise any restriction effect.In addition, the full content of the composition represented by example below is not limited to conduct
Necessary to the solution of utility model described in claim.
Embodiment one
Refer to Fig. 1 to Fig. 4, a kind of structural representation for outdoor heat exchanger that Fig. 1 is provided by the utility model embodiment
Figure；The structural representation of refrigerant flow inside a kind of outdoor heat exchanger that Fig. 2 is provided by the utility model embodiment；Fig. 3 is
The structural representation for another outdoor heat exchanger that the utility model embodiment is provided；Fig. 4 is the utility model embodiment institute
The structural representation of refrigerant flow inside another outdoor heat exchanger of offer.
The utility model embodiment discloses a kind of heat exchanger, including：
Positioned at the first heat exchange unit 401 of windward side；
Positioned at the second heat exchange unit 402 of leeward side, the first heat exchange unit 401 and the second heat exchange unit 402 are serially connected,
And the heat exchange unit 402 of the first heat exchange unit 401 and second can be exchanged heat with air intake successively；And
The first throttle device 500 being connected between the first heat exchange unit 401 and the second heat exchange unit 402.
Fig. 2 and Fig. 4 are referred to, during by the outdoor heat exchangers of heat exchanger applications of the present utility model to heat pump air conditioner, first
Heat exchange unit 401 is connected by pipeline with indoor heat exchanger, and the second heat exchange unit 402 is connected by pipeline with four-way reversing valve,
In the case of heat pump air conditioner is in heating, refrigerant carries out condensation heat release into the first heat exchange unit 401, through first throttle device
After 500 throttlings, heat absorption is evaporated into the second heat exchange unit 402.In the process, outdoor air intake passes through the first heat exchange unit
After 401 heating, the second heat exchange unit 402 is again passed through, improves EAT, due to flowing through the air of the second heat exchange unit 402
Temperature is higher so that 402 basic frost-free of the second heat exchange unit or slow frosting, when the heat exchanger is as outdoor heat exchanger,
It ensure that the evaporation effect of refrigerant in outdoor heat exchanger 400.Therefore, heat pump air conditioner is reduced using heat exchanger of the present utility model
The decay of the heating capacity of device.
It should be noted that heat exchanger generally has windward side and leeward side, wherein, air intake generally blows to the back of the body by windward side
Wind side.Therefore, in the utility model embodiment, the first heat exchange unit 401 is located at the windward side of heat exchanger, the second heat exchange unit
402 when being located at the leeward side of heat exchanger, and air intake first passes through the first heat exchange unit 401 and passes through the second heat exchange unit 402 again, and successively
Exchanged heat.
First throttle device 500 is can have throttling action to refrigerant.
The concrete structure of first heat exchange unit 401 and the second heat exchange unit 402 can be identical with existing heat exchanger structure,
Can also be different.In the utility model embodiment, specifically introduce several：
Refrigerant flow in first heat exchange unit 401 is one or more.Refrigerant flow is refrigerant in the first heat exchange unit
The path formed when being flowed in 401 refrigerant pipe 42.
When refrigerant flow for all the way when, it can be understood as, one-in-and-one-out, all refrigerant pipes 42 in the first heat exchange unit 401
The refrigerant flow to be formed is serially connected, or the first heat exchange unit 401 forms a refrigerant flow by a refrigerant pipe.When
When refrigerant flow is multichannel, it can be understood as enter to have more more, the formation in parallel of the part refrigerant pipe 42 in the first heat exchange unit 401
A plurality of refrigerant flow.
When refrigerant flow is multichannel, every refrigerant flow is in series by a refrigerant pipe 42 or a plurality of refrigerant pipe 42；
And the both ends of multichannel refrigerant flow are flowed to two total refrigerant pipes 41, one of them total refrigerant pipe 41 and first throttle device 500
Connection, another total refrigerant pipe 41 are used to connect with indoor heat exchanger 300.It is arranged such, the first heat exchange unit can be improved
The quantity of refrigerant pipe improves the heat exchange area of the first heat exchange unit 401 in 401, and then improves the heat exchange efficiency of refrigerant.
All refrigerant pipes 42 in first heat exchange unit 401 are in single arrangement or arranged in rows, i.e. no matter refrigerant pipe
42 be connected into a refrigerant flow or and be unified into a plurality of refrigerant flow, the arrangement form of all refrigerant pipes 42 spatially can be with
In single arrangement or arranged in rows, such a form is not limited only to certainly, or be not arranged in rows.The form of arranged in rows exists
Reduced while improving heat exchange area and take volume.
And the selection of the refrigerant pipe 42 in the first heat exchange unit 401, usually U-tube, coiled pipe, or other are common
Heat exchanger tube.It is arranged such, the structure of the first heat exchange unit 401 can be simplified.
Refrigerant flow in second heat exchange unit 402 is one or more.Refrigerant flow is refrigerant in the second heat exchange unit
The path formed during 402 flowing.
When refrigerant flow for all the way when, it can be understood as, one-in-and-one-out, all refrigerant pipes 42 in the second heat exchange unit 402
The refrigerant flow to be formed is serially connected, or the second heat exchange unit 402 forms a refrigerant flow by a refrigerant pipe.When
When refrigerant flow is multichannel, it can be understood as enter to have more more, the formation in parallel of the part refrigerant pipe 42 in the second heat exchange unit 402
A plurality of refrigerant flow.
When refrigerant flow is multichannel, every refrigerant flow is in series by a refrigerant pipe 42 or a plurality of refrigerant pipe 42；
And the both ends of multichannel refrigerant flow are flowed to two total refrigerant pipes 41, one of them total refrigerant pipe 41 and first throttle device 500
Connection, another total refrigerant pipe 41 are used to connect with four-way reversing valve 200.It is arranged such, the second heat exchange unit can be improved
The quantity of refrigerant pipe improves the heat exchange area of the second heat exchange unit 402 in 402, and then improves the heat exchange efficiency of refrigerant.
All refrigerant pipes 42 in second heat exchange unit 402 are in single arrangement or arranged in rows, i.e. no matter refrigerant pipe
42 be connected into a refrigerant flow or and be unified into a plurality of refrigerant flow, the arrangement form of all refrigerant pipes 42 spatially can be with
In single arrangement or arranged in rows, such a form is not limited only to certainly, or be not arranged in rows.The form of arranged in rows exists
Reduced while improving heat exchange area and take volume.
And the selection of the refrigerant pipe 42 in the second heat exchange unit 402, usually U-tube, coiled pipe, or other are common
Heat exchanger tube.It is arranged such, the structure of the second heat exchange unit 402 can be simplified.
Outdoor heat exchanger 400 is functionally divided into two parts by the above-mentioned heat exchange unit 402 of first heat exchange unit 401 and second
Structure, wherein, the first heat exchange unit 401 and the second heat exchange unit 402 are surrounded by same housing 403, i.e. the first heat exchange unit
401st, the second heat exchange unit 402, first throttle device 500 and housing 403 form a heat exchanger, and the heat exchanger has one
Housing 403.Because the first heat exchange unit 401 and the second heat exchange unit 402 are located in same housing, it is thus possible to improve the
The heat exchange efficiency of one heat exchange unit 401 and the second heat exchange unit 402.Meanwhile the installation of heat exchanger can be simplified.
Or first heat exchange unit 401 and the second heat exchange unit 402 each surrounded by different housings.I.e. first heat exchange is single
Member 401 and a housing form a heat exchanger, and the second heat exchange unit 402 and a housing form a heat exchanger, and two are changed
Hot device is connected by first throttle device 500.First heat exchange unit 401 and the second heat exchange unit 402 are divided into two entities
Heat exchanger, in transportation, two heat exchangers can be disassembled into and transported.
Above-mentioned heat exchanger, outdoor heat exchanger application can be used as, can also be applied as indoor heat exchanger, specifically should
Can mutually it be referred to process.
Embodiment two
Fig. 5 and Fig. 6 are referred to, the invention also discloses a kind of heat pump air conditioner, including compressor 100, four-way to change
To valve 200, indoor heat exchanger 300 and outdoor heat exchanger 400, outdoor heat exchanger 400 is a kind of described any one of embodiment
Heat exchanger, the first heat exchange unit 401 in outdoor heat exchanger 400 connects with indoor heat exchanger 300, in outdoor heat exchanger 400
The second heat exchange unit 402 connected with four-way reversing valve 200.The utility model is not limited only to above-mentioned part, can be with
According to being actually needed, addition gas-liquid separator, device for drying and filtering etc. part are further perfect.
Wherein, compressor 100, four-way reversing valve 200, the connected mode of indoor heat exchanger 300 are same as the prior art, this
First throttle device is non-adjustable throttling arrangement in utility model embodiment.So-called non-adjustable throttling arrangement is that can not adjust stream
The throttling arrangement of amount, such as capillary.
For the heat pump air conditioner of the utility model embodiment in heating, the exhaust end HTHP refrigerant of compressor 100 is through four
Heat exchanger 300, which is got in, after logical reversal valve 200 carries out condensation heat release；Refrigerant after condensation heat release enters the first heat exchange unit
401 continue to condense heat release；Continue the refrigerant after condensation heat release after the throttling of first throttle device 500, changed into second
Heat absorption is evaporated in hot cell 402；Refrigerant after evaporation endothermic returns to compressor 100 after the outflow of outdoor heat exchanger 400 and inhaled
Gas end, complete heating circulation.
In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, because the air themperature for flowing through the second heat exchange unit 402 is higher, the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Evaporation effect, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that outdoor heat exchanger
The evaporation effect of refrigerant in 400, reduces the decay of the heating capacity of heat pump air conditioner.
Embodiment three
A kind of control method of heat pump air conditioner, this method Application Example two are also disclosed in the utility model embodiment
The heat pump air conditioner of kind, the heat pump air conditioner control method in the utility model embodiment is described in detail below：
In the case where the heat pump air conditioner is in heating mode, the four-way reversing valve 200 turns on the compressor
100 and the indoor heat exchanger 300, the first heat exchange unit 401 be used as condenser, the second heat exchange unit 402 is used as evaporator.
Referring to Fig. 6, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Get in heat exchanger 300 and carry out condensation heat release；Refrigerant after condensation heat release continues to condense into the first heat exchange unit 401
Heat release；Continue the refrigerant after condensation heat release after the throttling of first throttle device 500, into the 402 interior progress of the second heat exchange unit
Evaporation endothermic；Refrigerant after evaporation endothermic returns to the suction end of compressor 100 after the outflow of outdoor heat exchanger 400, completes heating and follows
Ring.In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit 402 after the heating of the first heat exchange unit 401, due to
Flow through that the air themperature of the second heat exchange unit 402 is higher, the evaporation effect of the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Fruit, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that refrigerant in outdoor heat exchanger 400
Evaporation effect, reduce the decay of the heating capacity of heat pump air conditioner.
In the case where the heat pump air conditioner is in refrigeration mode, the four-way reversing valve 200 turns on the compressor
100 and the outdoor heat exchanger 400, the first heat exchange unit 401 be used as evaporator, the second heat exchange unit 402 is used as condenser.
Referring to Fig. 5, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Condensation heat release is carried out into the second heat exchange unit 402；The refrigerant after heat release is condensed after the throttling of first throttle device 500, is entered
Enter the first heat exchange unit 401 and be evaporated heat absorption；Refrigerant after evaporation endothermic is got in after the outflow of outdoor heat exchanger 400
Heat exchanger 300 continues evaporation endothermic；Continue the refrigerant after evaporation endothermic and return to compressor after the outflow of indoor heat exchanger 300
100 suction ends, complete kind of refrigeration cycle.In above-mentioned process of refrigerastion, outdoor air intake changes by the preliminary cooling of the first heat exchange unit 401
After heat, then exchanged heat with refrigerant by the second heat exchange unit 402, now refrigerant forms adverse current with outdoor air intake, although sacrificing
A part of performance of outdoor heat exchanger 400 (the first heat exchange unit 401 is now evaporator), but overall heat exchange efficiency improves,
And (such as ambient temperature is higher, outdoor heat exchanger 400 is dirty stifled) can reduce outdoor heat exchanger 400 in high load capacity operating mode
Pressure, it is possible to increase the reliability of system.
In the case of heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the compressor 100 and institute
State outdoor heat exchanger 400.
Referring to Fig. 5, refrigerant flows to：The exhaust end HTHP refrigerant of compressor 100 enters the after four-way reversing valve 200
Two heat exchange units 402 carry out condensation heat release；The refrigerant after heat release is condensed after the throttling of first throttle device 500, into first
Heat exchange unit 401 is evaporated heat absorption；Refrigerant after evaporation endothermic gets in heat exchanger after the outflow of outdoor heat exchanger 400
300 continue evaporation endothermic；Refrigerant after continuation evaporation endothermic returns to compressor 100 after the outflow of indoor heat exchanger 300 and inhaled
Gas end, complete defrost circulation.The defrost mode mainly carries out defrost by the refrigerant inside the second heat exchange unit 402.
Example IV
Fig. 5 and Fig. 6 are referred to, the invention also discloses a kind of heat pump air conditioner, including compressor 100, four-way to change
To valve 200, indoor heat exchanger 300 and outdoor heat exchanger 400, outdoor heat exchanger 400 is the outdoor heat exchanger of any of the above-described
400, the first heat exchange unit 401 in outdoor heat exchanger 400 connects with indoor heat exchanger 300, and second in outdoor heat exchanger 400
Heat exchange unit 402 connects with four-way reversing valve 200.The utility model is not limited only to above-mentioned part, can also be according to reality
Border needs addition gas-liquid separator, device for drying and filtering etc. part further perfect.
Wherein, compressor 100, four-way reversing valve 200, the connected mode of indoor heat exchanger 300 are same as the prior art, this
First throttle device is adjustable throttling arrangement in utility model embodiment.So-called adjustable throttling arrangement is the section that can adjust flow
Device is flowed, such as electric expansion valve, electromagnetism two-port valve, the first throttle device can be divided into throttle and minimum as needed
Throttle, when for throttle when, the first throttle device 500 has throttling function, when for minimum throttle when, substantially
Do not possess throttling function, can realize the throttling arrangement of above-mentioned function has a lot, and the utility model does not just enumerate, as long as energy
Enough realize the throttling arrangement of this two states in the scope of protection of the utility model.
For the heat pump air conditioner of the utility model embodiment in heating, the exhaust end HTHP refrigerant of compressor 100 is through four
Heat exchanger 300, which is got in, after logical reversal valve 200 carries out condensation heat release；Refrigerant after condensation heat release enters the first heat exchange unit
401 continue to condense heat release；Continue the refrigerant after condensation heat release after the throttling of first throttle device 500, changed into second
Heat absorption is evaporated in hot cell 402；Refrigerant after evaporation endothermic returns to compressor 100 after the outflow of outdoor heat exchanger 400 and inhaled
Gas end, complete heating circulation.
In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, because the air themperature for flowing through the second heat exchange unit 402 is higher, the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Evaporation effect, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that outdoor heat exchanger
The evaporation effect of refrigerant in 400, reduces the decay of the heating capacity of heat pump air conditioner.
Embodiment five
A kind of control method of heat pump air conditioner, this method Application Example four are also disclosed in the utility model embodiment
In heat pump air conditioner, the heat pump air conditioner control method in the utility model embodiment is described in detail below：
In the case where the heat pump air conditioner is in heating mode, the four-way reversing valve 200 turns on the compressor
100 and the indoor heat exchanger 300, the first throttle device 500 be in throttle.
Referring to Fig. 6, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Get in heat exchanger 300 and carry out condensation heat release；Refrigerant after condensation heat release continues to condense into the first heat exchange unit 401
Heat release；Continue the refrigerant after condensation heat release after the throttling of first throttle device 500, into the 402 interior progress of the second heat exchange unit
Evaporation endothermic；Refrigerant after evaporation endothermic returns to the suction end of compressor 100 after the outflow of outdoor heat exchanger 400, completes heating and follows
Ring.
In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, because the air themperature for flowing through the second heat exchange unit 402 is higher, the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Evaporation effect, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that outdoor heat exchanger
The evaporation effect of refrigerant in 400, reduces the decay of the heating capacity of heat pump air conditioner.
In the case where the heat pump air conditioner is in refrigeration mode, the four-way reversing valve 200 turns on the compressor
100 and the outdoor heat exchanger 400, the first throttle device 500 be in throttle.
Referring to Fig. 5, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Condensation heat release is carried out into the second heat exchange unit 402；The refrigerant after heat release is condensed after the throttling of first throttle device 500, is entered
Enter the first heat exchange unit 401 and be evaporated heat absorption；Refrigerant after evaporation endothermic is got in after the outflow of outdoor heat exchanger 400
Heat exchanger 300 continues evaporation endothermic；Continue the refrigerant after evaporation endothermic and return to compressor after the outflow of indoor heat exchanger 300
100 suction ends, complete kind of refrigeration cycle.
In above-mentioned process of refrigerastion, outdoor air intake is after the preliminary cooling heat transferring of the first heat exchange unit 401, then by second
Heat exchange unit 402 is exchanged heat with refrigerant, and now refrigerant forms adverse current with outdoor air intake, although sacrificing outdoor heat exchanger 400
A part of performance (the first heat exchange unit 401 is now evaporator), but overall heat exchange efficiency improves, and in high load capacity operating mode
(such as ambient temperature is higher, outdoor heat exchanger 400 is dirty stifled) can reduce the pressure of outdoor heat exchanger 400, it is possible to increase
The reliability of system.
In the case of heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the compressor 100 and institute
Indoor heat exchanger 300 is stated, the first throttle device 500 is in minimum throttle.
Referring to Fig. 6, now, refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 is through four-way reversing valve 200
After get in heat exchanger 300 and carry out condensation heat release；Refrigerant after condensation heat release continues cold into the first heat exchange unit 401
Solidifying heat release；Continue the refrigerant after condensation heat release and pass through first throttle device 500 (being in minimum throttle), into the second heat exchange
Defrost is carried out in unit 402；Refrigerant returns to compressor 100 after the outflow of outdoor heat exchanger 400, completes defrost circulation.
During above-mentioned defrost, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, the heat defrost of outdoor air intake can not only be utilized, the refrigerant inside the second heat exchange unit 402 can also be used and carry out defrost,
The defrost efficiency of raising.
Or：In the case of heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the compressor
100 and the outdoor heat exchanger 400, the first throttle device 500 be in minimum throttle.
Referring to Fig. 5, now refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Defrost is carried out into the second heat exchange unit 402；Refrigerant after defrost passes through first throttle device 500 (being in minimum throttle)
Afterwards, continue to condense heat release into the first heat exchange unit 401；Refrigerant after evaporation endothermic after the outflow of outdoor heat exchanger 400,
Heat exchanger 300 is got in continue to condense heat release；Continue the refrigerant after condensation heat release to return after the outflow of indoor heat exchanger 300
To the suction end of compressor 100, defrost circulation is completed.The defrost mode is mainly entered by the refrigerant inside the second heat exchange unit 402
Row defrost.
To sum up, because first throttle device 500 is adjustable throttling arrangement, no matter using which kind of defrost mode, in defrost
Cheng Zhong, indoor heat exchanger 300 carry out condensation heat release all the time, and therefore, the fluctuation of indoor temperature is little, has substantially no effect on indoor environment
Heating comfortableness.
Embodiment six
Fig. 7 and Fig. 8 are referred to, the utility model embodiment provides another heat pump air conditioner again, the heat pump air conditioner
Device includes compressor 100, four-way reversing valve 200, indoor heat exchanger 300 and outdoor heat exchanger 400, and its connected mode is with reference to above-mentioned
Embodiment, in the present embodiment, second throttling device 600 is additionally arranged, passes through the heat exchange unit of second throttling device 600 first
401 connect with indoor heat exchanger 300.
The effect of second throttling device 600 is identical with the effect of first throttle device 500, and simply set location is different, the
Two throttling arrangements 600 are adjustable throttling arrangement, or non-adjustable throttling arrangement.So-called adjustable throttling arrangement is that can adjust flow
Throttling arrangement, such as electric expansion valve or electromagnetism two-port valve.So-called non-adjustable throttling arrangement is the section that can not adjust flow
Flow device, such as capillary；Second throttling device 600 is divided for throttle and minimum throttle, and wherein throttle can
Refrigerant is throttled, minimum throttle, does not have throttling function substantially to refrigerant, and the throttling arrangement of this function can be realized
Have a lot, as long as can realize the throttling arrangement of this two states in the scope of protection of the utility model.
When first throttle device 500 and second throttling device 600 are unadjustable device, the first throttle device 500
There is throttling action with second throttling device 600.
For the heat pump air conditioner of the utility model embodiment in heating, the exhaust end HTHP refrigerant of compressor 100 is through four
Heat exchanger 300, which is got in, after logical reversal valve 200 carries out condensation heat release；Refrigerant after condensation heat release passes through second throttling device
After 600 throttlings, heat absorption is evaporated into the first heat exchange unit 401；Refrigerant after evaporator heat passes through first throttle device 500
After throttling, into the second heat exchange unit 402 in continue evaporation endothermic；Continue the refrigerant after evaporation endothermic from outdoor heat exchanger
The suction end of compressor 100 is returned to after 400 outflows, completes heating circulation.
In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, because the air themperature for flowing through the second heat exchange unit 402 is higher, the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Evaporation effect, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that outdoor heat exchanger
The evaporation effect of refrigerant in 400, reduces the decay of the heating capacity of heat pump air conditioner.
The invention also discloses a kind of control method of heat pump air conditioner, the methods described application implementation for embodiment seven
Heat pump air conditioner in example six, the first throttle device and the second throttling device are adjustable throttling arrangement,
In the case where the heat pump air conditioner is in heating mode, the four-way reversing valve 200 turns on the compressor
100 and the indoor heat exchanger 300, the first throttle device 500 and the second throttling device 600 be in throttle；
Now, referring to Fig. 8, refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 is through four-way reversing valve 200
After get in heat exchanger 300 and carry out condensation heat release；The refrigerant after heat release is condensed after the throttling of second throttling device 600, is entered
Enter the first heat exchange unit 401 and be evaporated heat absorption；Refrigerant after evaporator heat enters after the throttling of first throttle device 500
Continue evaporation endothermic in second heat exchange unit 402；Continue the refrigerant after evaporation endothermic to return after the outflow of outdoor heat exchanger 400
To the suction end of compressor 100, heating circulation is completed.
In above-mentioned heating operations, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, because the air themperature for flowing through the second heat exchange unit 402 is higher, the inside refrigerant of the second heat exchange unit 402 can not only be ensured
Evaporation effect, and 402 basic frost-free of the second heat exchange unit or slow frosting can be realized.It ensure that outdoor heat exchanger
The evaporation effect of refrigerant in 400, reduces the decay of the heating capacity of heat pump air conditioner.
Or in the case where the heat pump air conditioner is in heating mode, the four-way reversing valve 200 turns on the pressure
Contracting machine 100 and the indoor heat exchanger 300, the first throttle device 500 are in throttle, the second throttling device
600 are in minimum throttle.
Now, refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 is got in after four-way reversing valve 200
Heat exchanger 300 carries out condensation heat release；Refrigerant after condensation heat release passes through second throttling device 600 (being in minimum throttle)
Afterwards, continue to condense heat release into the first heat exchange unit 401；Continue the refrigerant after condensation heat release and pass through first throttle device
500 throttling after, into the second heat exchange unit 402 in be evaporated heat absorption；Refrigerant after evaporation endothermic flows from outdoor heat exchanger 400
The suction end of compressor 100 is returned to after going out, completes heating circulation.In above-mentioned heating operations, outdoor air intake passes through the first heat exchange unit
The second heat exchange unit 402 is again passed through after 401 heating, can not only because the air themperature for flowing through the second heat exchange unit 402 is higher
Ensure the evaporation effect of the inside refrigerant of the second heat exchange unit 402, and can realize 402 basic frost-free of the second heat exchange unit or
Slow frosting.It ensure that the evaporation effect of refrigerant in outdoor heat exchanger 400, the heating capacity for reducing heat pump air conditioner declines
Subtract.
In the case where the heat pump air conditioner is in refrigeration mode, the four-way reversing valve 200 turns on the compressor
100 and the outdoor heat exchanger 400, the first throttle device 500 be in minimum throttle, the second throttling device
600 are in throttle.
Referring to Fig. 7, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Condensation heat release is carried out into the second heat exchange unit 402；The refrigerant after heat release is condensed by first throttle device 500 (in minimum
Throttle) after, continue to condense heat release into the first heat exchange unit 401；Continue to condense the refrigerant after heat release through the
After the throttling of two throttling arrangements 600, get in heat exchanger 300 and be evaporated heat absorption；Refrigerant after evaporation endothermic is from indoor heat exchange
Device 300 returns to the suction end of compressor 100 after flowing out, complete kind of refrigeration cycle.In above-mentioned process of refrigerastion, outdoor air intake changes by first
After the preliminary cooling heat transferring of hot cell 401, then cooling heat transferring, refrigerant flow direction are entered with outdoor again by the second heat exchange unit 402
Wind direction forms adverse current, improves the heat exchange efficiency of outdoor heat exchanger 400.
Or in the case where the heat pump air conditioner is in refrigeration mode, the four-way reversing valve 200 turns on the pressure
Contracting machine 100 and the outdoor heat exchanger 400, the first throttle device 500 and the second throttling device 600 are in throttling shape
State.
Now, refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 enters second after four-way reversing valve 200
Heat exchange unit 402 carries out condensation heat release；The refrigerant after heat release is condensed after the throttling of first throttle device 500, is changed into first
Hot cell 401 is evaporated heat absorption；Refrigerant after evaporation endothermic gets in heat exchanger after the throttling of second throttling device 600
300 continue evaporation endothermic；Refrigerant after continuation evaporation endothermic returns to compressor 100 after the outflow of indoor heat exchanger 300 and inhaled
Gas end, complete kind of refrigeration cycle.
In above-mentioned process of refrigerastion, outdoor air intake is after the preliminary cooling heat transferring of the first heat exchange unit 401, then by second
Heat exchange unit 402 (being now condenser) is exchanged heat with refrigerant, and now refrigerant direction forms adverse current with outdoor air intake direction, though
So sacrifice a part of performance (the first heat exchange unit 401 is now evaporator) of outdoor heat exchanger 400, but overall heat exchange efficiency
Improve, and (such as ambient temperature is higher, outdoor heat exchanger 400 is dirty stifled) can reduce outdoor heat exchange in high load capacity operating mode
The pressure of device 400, improve the reliability of system.
In high load capacity operating mode, (such as ambient temperature is higher, outdoor heat exchanger 400 is dirty stifled) chooses second of refrigeration
Mode, to improve the reliability of heat pump air conditioner.
In the case where the heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the compressor
100 and during the indoor heat exchanger 300, the first throttle device 500 and the second throttling device 600 are in minimum and throttled
State.
Referring to Fig. 8, now, refrigerant flow direction is：The exhaust end HTHP refrigerant of compressor 100 is through four-way reversing valve 200
After get in heat exchanger 300 and carry out condensation heat release；The refrigerant after heat release is condensed by second throttling device 600 (in minimum
Throttle) after, continue to condense heat release into the first heat exchange unit 401；Continue to condense the refrigerant process after heat release
First throttle device 500 (is in minimum throttle), into the 402 interior progress defrost of the second heat exchange unit；Refrigerant after defrost
Compressor 100 is returned to after the outflow of outdoor heat exchanger 400, completes defrost circulation.
During above-mentioned defrost, outdoor air intake again passes through the second heat exchange unit after the heating of the first heat exchange unit 401
402, air intake heat defrost can not only be utilized, the refrigerant inside the second heat exchange unit 402 can also be used and carry out defrost, raising
Defrost efficiency.
Or in the case where the heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the pressure
When contracting machine 100 and the outdoor heat exchanger 400, the first throttle device 500 is in minimum throttle, second throttling device
600 are in throttle.
Referring to Fig. 7, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Defrost is carried out into the second heat exchange unit 402；Refrigerant after defrost passes through first throttle device 500 (being in minimum throttle)
Afterwards, continue to condense heat release into the first heat exchange unit 401；Refrigerant after evaporation endothermic saves by second throttling device 600
After stream, get in heat exchanger 300 and be evaporated heat absorption；Refrigerant after evaporation endothermic returns to after the outflow of indoor heat exchanger 300
The suction end of compressor 100, complete defrost circulation.
Or in the case where the heat pump air conditioner is in defrost pattern, the four-way reversing valve 200 turns on the pressure
When contracting machine 100 and the outdoor heat exchanger 400, the first throttle device 500 and second throttling device 600 are in minimum and throttled
State.
Referring to Fig. 7, now, refrigerant flow direction：The exhaust end HTHP refrigerant of compressor 100 is after four-way reversing valve 200
Defrost is carried out into the second heat exchange unit 402；Refrigerant after defrost passes through first throttle device 500 (being in minimum throttle)
Afterwards, continue to condense heat release into the first heat exchange unit 401；Refrigerant after evaporation endothermic is by (the place of second throttling device 600
In minimum throttle) after, get in heat exchanger 300 and continue to condense heat release；Continue the refrigerant after condensation heat release from room
Interior heat exchanger 300 returns to the suction end of compressor 100 after flowing out, complete defrost circulation.
To sum up, because first throttle device 500 and second throttling device 600 are adjustable throttling arrangement, no matter using above-mentioned
Which kind of defrost mode, during defrost, indoor heat exchanger 300 carries out condensation heat release all the time, and therefore, the fluctuation of indoor temperature is not
Greatly, the heating comfortableness of indoor environment is had substantially no effect on.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
- A kind of 1. heat exchanger, it is characterised in that including：Positioned at the first heat exchange unit (401) of windward side；Positioned at the second heat exchange unit (402) of leeward side, second heat exchange unit (402) and first heat exchange unit (401) it is serially connected, and first heat exchange unit (401) and second heat exchange unit (402) can enter with air intake successively Row heat exchange；AndThe first throttle device being connected between first heat exchange unit (401) and second heat exchange unit (402).
- 2. heat exchanger as claimed in claim 1, it is characterised in that the refrigerant flow in first heat exchange unit (401) is One or more；Refrigerant flow in second heat exchange unit (402) is one or more.
- 3. heat exchanger as claimed in claim 2, it is characterised in that cold described in the first heat exchange unit (401) Zhong Ge roads Matchmaker's stream is in series by one or more refrigerant pipe, and all refrigerant pipes in first heat exchange unit (401) are in Single arrangement or arranged in rows；Second heat exchange unit (402) the Zhong Ge roads refrigerant flow is in series by one or more refrigerant pipe, and described second All refrigerant pipes in heat exchange unit (402) are in single arrangement or arranged in rows.
- 4. heat exchanger as claimed in claim 3, it is characterised in that first heat exchange unit (401) and second heat exchange Unit (402) is surrounded by same housing, or first heat exchange unit (401) and second heat exchange unit (402) are each Surrounded by different housings.
- 5. the heat exchanger as any one of Claims 1-4, it is characterised in that the heat exchanger is outdoor heat exchanger.
- 6. a kind of heat pump air conditioner, including compressor (100), four-way reversing valve (200), indoor heat exchanger (300) and outdoor are changed Hot device (400), it is characterised in that heat exchanger of the outdoor heat exchanger (400) any one of Claims 1-4, institute The first heat exchange unit (401) stated in outdoor heat exchanger (400) connects with the indoor heat exchanger (300), the outdoor heat exchange The second heat exchange unit (402) in device (400) connects with the four-way reversing valve (200).
- 7. heat pump air conditioner as claimed in claim 6, it is characterised in that first heat exchange unit (401) passes through the second section Stream device (600) connects with the indoor heat exchanger (300).
- 8. heat pump air conditioner as claimed in claim 7, it is characterised in that the first throttle device (500) and described second Throttling arrangement (600) is adjustable throttling arrangement.
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| CN201720817634.5U CN206875758U (en) | 2017-07-06 | 2017-07-06 | A kind of heat exchanger and heat pump air conditioner |
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| CN201720817634.5U CN206875758U (en) | 2017-07-06 | 2017-07-06 | A kind of heat exchanger and heat pump air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152734A (en) * | 2017-07-06 | 2017-09-12 | 珠海格力电器股份有限公司 | A kind of heat exchanger, heat pump air conditioner and control method |
| CN111637583A (en) * | 2020-05-25 | 2020-09-08 | 宁波奥克斯电气股份有限公司 | Condenser flow path structure, control method and air conditioner |
-
2017
- 2017-07-06 CN CN201720817634.5U patent/CN206875758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152734A (en) * | 2017-07-06 | 2017-09-12 | 珠海格力电器股份有限公司 | A kind of heat exchanger, heat pump air conditioner and control method |
| CN111637583A (en) * | 2020-05-25 | 2020-09-08 | 宁波奥克斯电气股份有限公司 | Condenser flow path structure, control method and air conditioner |
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