CN205843162U - A kind of cascade high-temperature heat pump of high defrosting performance - Google Patents
A kind of cascade high-temperature heat pump of high defrosting performance Download PDFInfo
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- CN205843162U CN205843162U CN201620625074.9U CN201620625074U CN205843162U CN 205843162 U CN205843162 U CN 205843162U CN 201620625074 U CN201620625074 U CN 201620625074U CN 205843162 U CN205843162 U CN 205843162U
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Abstract
The utility model discloses the cascade high-temperature heat pump of a kind of high defrosting performance, heat pump includes: include First Heat Exchanger, Entry-level System, subsystem, Intermediate Heat Exchanger and mode switch element；Method includes heating mode and defrosting mode.This utility model is when unit defrosts, have only to start subsystem and carry out commutation defrosting, only use the second/tetra-comb of First Heat Exchanger for dispelling the heat during unit defrosting, thus without increasing water or the flow resistance of coolant, thus improve unit defrosting/heating efficiency；And be not required to when defrosting through Intermediate Heat Exchanger, the most do not exist because caused heat provide not enough or too much affect unit safety Effec-tive Function when two systems are all opened by Water Temperature.This utility model can be widely applied in source pump.
Description
Technical field
This utility model relates to technical field of heat pumps, particularly relates to the cascade high-temperature heat pump of a kind of high defrosting performance.
Background technology
Existing cascade high-temperature heat pump generally uses following two mode to defrost:
The first is increase water-refrigerant heat exchanger between Entry-level System cross valve and plate type heat exchanger, when needs defrost
Time, subsystem quits work, the commutation defrosting of Entry-level System cross valve, but so Defrost mode is because of water-refrigerant heat exchanger
Being positioned on Entry-level System major loop, no matter heating and defrosting is required for through this heat exchanger, thus adding coolant flowing and water
The resistance of flowing, have impact on defrosting efficiency and the heating efficiency of unit；
The second is that Entry-level System and subsystem are opened commutation defrosting simultaneously, but such Defrost mode is easily subject to
The impact of subsystem water temperature, when subsystem water temperature is high, it is provided that heat defrost higher than Entry-level System required for heat, just
Easily there is the phenomenon pressed of offering a high price in level system；When subsystem water temperature is low, it is provided that heat required less than Entry-level System defrosting
Heat, Entry-level System easily occur report low pressure phenomenon；Thus have impact on unit safety Effec-tive Function.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide one can improve work efficiency, and protects
A kind of cascade high-temperature heat pump of the high defrosting performance of card stable operation of unit.
Technical solution adopted in the utility model is:
The cascade high-temperature heat pump of a kind of high defrosting performance, including First Heat Exchanger, Entry-level System, subsystem, centre
Heat exchanger and mode switch element, the first outfan of described First Heat Exchanger is connected with the first input end of Entry-level System, institute
First outlet internal of the first input end and First Heat Exchanger of stating First Heat Exchanger connects, the first of described First Heat Exchanger
Input is connected with the first outfan of Entry-level System, and described Intermediate Heat Exchanger is connected between Entry-level System and subsystem,
Second input of described First Heat Exchanger connects with the second outlet internal of First Heat Exchanger, the of described First Heat Exchanger
Two inputs are connected to subsystem, and the second outfan of described First Heat Exchanger is connected to the input of mode switch element,
The outfan of described mode switch element is connected to the second input of Intermediate Heat Exchanger, described mode switch element and secondary system
System connects.
As the further improvement of the cascade high-temperature heat pump of described a kind of high defrosting performance, described mode switch element
Including the first electromagnetism two-port valve and the second electromagnetism two-port valve, described subsystem respectively with the input of the first electromagnetism two-port valve and
The outfan of the second electromagnetism two-port valve connects, and it is second defeated that the outfan of described first electromagnetism two-port valve is connected to Intermediate Heat Exchanger
Entering end, the input of described second electromagnetism two-port valve is connected to the second outfan of First Heat Exchanger.
As the further improvement of the cascade high-temperature heat pump of described a kind of high defrosting performance, described Entry-level System includes
First compressor, the first cross valve, the first gas-liquid separator and first throttle device, the outfan of described first compressor connects
To the D mouth of the first cross valve, the C mouth of described first cross valve is connected to the first input end of Intermediate Heat Exchanger, and described centre is changed
First outfan of hot device passes through first throttle device and then is connected to the first input end of First Heat Exchanger, described first heat exchange
First outfan of device is connected to the E mouth of the first cross valve, the S mouth of described first cross valve by the first gas-liquid separator and then
It is connected to the input of the first compressor.
As the further improvement of the cascade high-temperature heat pump of described a kind of high defrosting performance, described subsystem includes
Second compressor, the second cross valve, the second gas-liquid separator, the second heat exchanger and the second throttling arrangement, described second compressor
Outfan be connected to the D mouth of the second cross valve, the C mouth of described second cross valve is by the second heat exchanger and then is connected to second
First end of throttling arrangement, the second end of described second throttling arrangement is electric with the input of the first electromagnetism two-port valve and second respectively
The outfan of magnetic two-port valve connects, and the E mouth of described second cross valve the second outfan and first with Intermediate Heat Exchanger respectively changes
Second input of hot device is connected, and the S mouth of described second cross valve is by the second gas-liquid separator and then is connected to the second pressure
The input of contracting machine.
As the further improvement of the cascade high-temperature heat pump of described a kind of high defrosting performance, described Intermediate Heat Exchanger is
Plate type heat exchanger.
As the further improvement of the cascade high-temperature heat pump of described a kind of high defrosting performance, described First Heat Exchanger is
Fin-tube heat exchanger.
The beneficial effects of the utility model are:
This utility model is when unit defrosts, it is only necessary to starts subsystem and carries out commutation defrosting, now the second heat exchanger
For vaporizer, First Heat Exchanger is condenser, unit defrosting time only used the second/tetra-comb of First Heat Exchanger for dispelling the heat,
Thus without increasing water or the flow resistance of coolant, thus improve unit defrosting/heating efficiency；And be not required to when defrosting through
Cross Intermediate Heat Exchanger, the most do not exist because two systems caused by Water Temperature when all opening heat provide not enough or too much and
Affect unit safety Effec-tive Function.Further, in this utility model, Entry-level System heats evaporation and subsystem defrosting condenses all
It is to carry out in First Heat Exchanger, the defrosting performance of unit can be promoted.Further, First Heat Exchanger second in this utility model/
Four comb inner refrigerants are connected to the second compressor by the second cross valve, when unit transfers heating mode to, are deposited in heat exchange
Cold-producing medium within device the second/tetra-comb can flow back into the second compressor, it is ensured that the safe and stable operation of unit.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further:
Fig. 1 is the structural representation of the cascade high-temperature heat pump of a kind of high defrosting performance of this utility model.
Detailed description of the invention
With reference to Fig. 1, the cascade high-temperature heat pump of a kind of high defrosting performance of this utility model, including First Heat Exchanger 1, primary
System 2, subsystem 4, Intermediate Heat Exchanger 3 and mode switch element 5, the first outfan of described First Heat Exchanger 1 is with primary
The first input end of system 2 connects, in the first input end of described First Heat Exchanger 1 and the first outfan of First Heat Exchanger 1
Portion connects, and the first input end of described First Heat Exchanger 1 is connected with the first outfan of Entry-level System 2, described Intermediate Heat Exchanger 3
It is connected between Entry-level System 2 and subsystem 4, the second input of described First Heat Exchanger 1 and the second of First Heat Exchanger 1
Outlet internal connects, and the second input of described First Heat Exchanger 1 is connected to subsystem 4, the of described First Heat Exchanger 1
Two outfans are connected to the input of mode switch element 5, and the outfan of described mode switch element 5 is connected to Intermediate Heat Exchanger
Second input of 3, described mode switch element 5 is connected with subsystem 4.
Being further used as preferred embodiment, described mode switch element 5 includes the first electromagnetism two-port valve 51 and second
Electromagnetism two-port valve 52, described subsystem 4 respectively with the input of the first electromagnetism two-port valve 51 and the second electromagnetism two-port valve 52
Outfan connects, and the outfan of described first electromagnetism two-port valve 51 is connected to the second input of Intermediate Heat Exchanger 3, and described second
The outfan of electromagnetism two-port valve 52 is connected to the second outfan of First Heat Exchanger 1.
Be further used as preferred embodiment, described Entry-level System 4 include first compressor the 21, first cross valve 22,
First gas-liquid separator 23 and first throttle device 24, the outfan of described first compressor 21 is connected to the first cross valve 22
D mouth, the C mouth of described first cross valve 22 is connected to the first input end of Intermediate Heat Exchanger 3, the first of described Intermediate Heat Exchanger 3
Outfan is by first throttle device 24 and then is connected to the first input end of First Heat Exchanger 1, the of described First Heat Exchanger 1
One outfan is connected to the E mouth of the first cross valve 22, the S mouth of described first cross valve 22 by the first gas-liquid separator 23 and then
It is connected to the input of the first compressor 21.
Be further used as preferred embodiment, described subsystem 4 include second compressor the 41, second cross valve 42,
Second gas-liquid separator the 43, second heat exchanger 44 and the second throttling arrangement 45, the outfan of described second compressor 41 is connected to
The D mouth of the second cross valve 42, the C mouth of described second cross valve 42 is by the second heat exchanger 44 and then is connected to the second throttling arrangement
First end of 45, the second end of described second throttling arrangement 45 respectively with input and second electromagnetism of the first electromagnetism two-port valve 51
The outfan of two-port valve 52 connects, the E mouth of described second cross valve 42 respectively with second outfan and first of Intermediate Heat Exchanger 3
Second input of heat exchanger 1 is connected, and the S mouth of described second cross valve 42 is by the second gas-liquid separator 43 and then is connected to
The input of the second compressor 41.
Being further used as preferred embodiment, described Intermediate Heat Exchanger 3 is plate type heat exchanger.
Being further used as preferred embodiment, described First Heat Exchanger 1 is fin-tube heat exchanger.
In this utility model embodiment, First Heat Exchanger 1 is replaced by the fin-tube heat exchanger of five rows, wherein the first/tri-/
Five combs are used for Entry-level System 2 heat exchange, communicate with E mouth and the first throttle device 24 of the first cross valve 22；The second/tetra-comb is used
Defrost heat exchange in subsystem 4, be connected with the E mouth of the second electromagnetism two-port valve 52 and the second cross valve 42.
When being in heating mode, in a heating mode, Entry-level System 2 and subsystem 4 are required for opening unit simultaneously,
First electromagnetism two-port valve 51 is opened, and the second electromagnetism two-port valve 52 cuts out, and it is as follows that it specifically heats operation principle:
Entry-level System: the refrigerant gas of High Temperature High Pressure discharged by the first compressor 21, high-temperature high-pressure refrigerant gas is from
The D mouth of one cross valve 22 flows to, and flows out from the C mouth of the first cross valve 22, enters after Intermediate Heat Exchanger 3 condenses and becomes low temperature
The refrigerant liquid of high pressure, now, the heat that after condensation, cold-producing medium is distributed evaporates required heat for subsystem 4, and
The cryogenic high pressure refrigerant liquid flowed out from Intermediate Heat Exchanger 3 flows into first throttle device 24 after reducing pressure by regulating flow, enters first
The first/tri-/five combs of heat exchanger 1 are evaporated.Low-temperature low-pressure refrigerant gas after completing evaporation sequentially passes through the
The E mouth of one cross valve 22, S mouth, enter the first gas-liquid separator 23, then flow out from the first gas-liquid separator 23, from the first compression
The gas returning port of machine 21 returns to the first compressor 21, completes the circulation heating fluorine road.
Subsystem: the refrigerant gas of High Temperature High Pressure discharged by the second compressor 41, high-temperature high-pressure refrigerant gas is from
The D mouth of two cross valves 42 flows to, and flows out from the C mouth of the second cross valve 42, enters after the second heat exchanger 44 condenses and become low
The refrigerant liquid of temperature high pressure, the cryogenic high pressure refrigerant liquid flowed out from the second heat exchanger 44 flows into the second throttling arrangement 45
After reducing pressure by regulating flow, enter in Intermediate Heat Exchanger 3 by absorbing heat that Entry-level System 2 distributed for evaporating, complete to evaporate it
After low-temperature low-pressure refrigerant gas sequentially pass through the E mouth of the second cross valve 42, S mouth, enter the second gas-liquid separator 43, then from
Second gas-liquid separator 43 flows out, and returns to the second compressor 41 from the gas returning port of the second compressor 41, completes and heat fluorine road
Circulation.
When being in defrosting mode, unit in defrost mode, close by Entry-level System 2, and subsystem 4 is opened, the second electricity
Magnetic two-port valve 52 is opened, and the first electromagnetism two-port valve 51 cuts out, and its operation principle that specifically defrosts is as follows:
Subsystem: the refrigerant gas of High Temperature High Pressure discharged by the second compressor 41, high-temperature high-pressure refrigerant gas is from
The D mouth of two cross valves 42 flows to, and flows out from the E mouth of the second cross valve 42, and the second/tetra-comb entering First Heat Exchanger 1 is carried out
Becoming the refrigerant liquid of cryogenic high pressure after condensation, the cryogenic high pressure refrigerant liquid flowed out from First Heat Exchanger 1 flows into second
In throttling arrangement 45 after reducing pressure by regulating flow, enter in the second heat exchanger 44 and evaporate, complete the low-temperature low-pressure refrigerant gas after evaporation
Body sequentially passes through the C mouth of the second cross valve 42, S mouth, enters the second gas-liquid separator 43, then flows from the second gas-liquid separator 43
Go out, return to the second compressor 41 from the gas returning port of the second compressor 41, complete the circulation on defrosting fluorine road.
From the foregoing it can be that this utility model is when unit defrosts, it is only necessary to startup subsystem 4 carries out commutation and removes
Frost, now the second heat exchanger 44 is vaporizer, and First Heat Exchanger 1 is condenser, has only used First Heat Exchanger 1 during unit defrosting
The second/tetra-comb is used for dispelling the heat, and thus without increasing water or the flow resistance of coolant, thus improves unit and defrosts/heat
Efficiency；And it is not required to through Intermediate Heat Exchanger 3 when defrosting, the most do not exist because being led by Water Temperature when two systems are all opened
Pyrogenicity amount provides not enough or too much affects unit safety Effec-tive Function.
It is above preferable enforcement of the present utility model is illustrated, but this utility model is created and is not limited to institute
State embodiment, those of ordinary skill in the art also can make on the premise of this utility model spirit all etc.
With deformation or replacement, deformation or the replacement of these equivalents are all contained in the application claim limited range.
Claims (6)
1. the cascade high-temperature heat pump of one kind high defrosting performance, it is characterised in that: include First Heat Exchanger, Entry-level System, secondary
System, Intermediate Heat Exchanger and mode switch element, the first outfan of described First Heat Exchanger inputs with the first of Entry-level System
End connects, and the first input end of described First Heat Exchanger connects with the first outlet internal of First Heat Exchanger, and described first changes
The first input end of hot device is connected with the first outfan of Entry-level System, and described Intermediate Heat Exchanger is connected to Entry-level System with secondary
Between system, the second input of described First Heat Exchanger connects with the second outlet internal of First Heat Exchanger, and described first
Second input of heat exchanger is connected to subsystem, and the second outfan of described First Heat Exchanger is connected to mode switch element
Input, the outfan of described mode switch element is connected to the second input of Intermediate Heat Exchanger, and the switching of described pattern is single
Unit is connected with subsystem.
The cascade high-temperature heat pump of a kind of high defrosting performance the most according to claim 1, it is characterised in that: described pattern is cut
Change unit and include the first electromagnetism two-port valve and the second electromagnetism two-port valve, described subsystem defeated with the first electromagnetism two-port valve respectively
The outfan entering end and the second electromagnetism two-port valve connects, and the outfan of described first electromagnetism two-port valve is connected to Intermediate Heat Exchanger
Second input, the input of described second electromagnetism two-port valve is connected to the second outfan of First Heat Exchanger.
The cascade high-temperature heat pump of a kind of high defrosting performance the most according to claim 1, it is characterised in that: described primary system
System includes the first compressor, the first cross valve, the first gas-liquid separator and first throttle device, the output of described first compressor
End is connected to the D mouth of the first cross valve, and the C mouth of described first cross valve is connected to the first input end of Intermediate Heat Exchanger, described
First outfan of Intermediate Heat Exchanger is by first throttle device and then is connected to the first input end of First Heat Exchanger, and described the
First outfan of one heat exchanger is connected to the E mouth of the first cross valve, and the S mouth of described first cross valve passes through the first gas-liquid separation
Device and then be connected to the input of the first compressor.
The cascade high-temperature heat pump of a kind of high defrosting performance the most according to claim 2, it is characterised in that: described secondary system
Unite and include the second compressor, the second cross valve, the second gas-liquid separator, the second heat exchanger and the second throttling arrangement, described second
The outfan of compressor is connected to the D mouth of the second cross valve, and the C mouth of described second cross valve passes through the second heat exchanger and then connection
To the first end of the second throttling arrangement, the second end of described second throttling arrangement respectively with the input of the first electromagnetism two-port valve and
The outfan of the second electromagnetism two-port valve connects, the E mouth of described second cross valve respectively with the second outfan of Intermediate Heat Exchanger and
Second input of First Heat Exchanger is connected, and the S mouth of described second cross valve is by the second gas-liquid separator and then is connected to
The input of the second compressor.
The cascade high-temperature heat pump of a kind of high defrosting performance the most according to claim 1, it is characterised in that: described centre is changed
Hot device is plate type heat exchanger.
6. according to the cascade high-temperature heat pump of a kind of high defrosting performance described in any one of Claims 1 to 5, it is characterised in that:
Described First Heat Exchanger is fin-tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625074.9U CN205843162U (en) | 2016-06-21 | 2016-06-21 | A kind of cascade high-temperature heat pump of high defrosting performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625074.9U CN205843162U (en) | 2016-06-21 | 2016-06-21 | A kind of cascade high-temperature heat pump of high defrosting performance |
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| CN205843162U true CN205843162U (en) | 2016-12-28 |
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| CN201620625074.9U Active CN205843162U (en) | 2016-06-21 | 2016-06-21 | A kind of cascade high-temperature heat pump of high defrosting performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937822A (en) * | 2016-06-21 | 2016-09-14 | 广东芬尼克兹节能设备有限公司 | Cascade type high-temperature heat pump with high defrosting performance and control method of cascade type high-temperature heat pump |
| CN107120831A (en) * | 2017-05-27 | 2017-09-01 | 南京理工大学 | A kind of continuous heating air friction drag |
| CN108036557A (en) * | 2017-12-28 | 2018-05-15 | 广东芬尼克兹节能设备有限公司 | A kind of parallel connection Cascade type heat pump system |
-
2016
- 2016-06-21 CN CN201620625074.9U patent/CN205843162U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937822A (en) * | 2016-06-21 | 2016-09-14 | 广东芬尼克兹节能设备有限公司 | Cascade type high-temperature heat pump with high defrosting performance and control method of cascade type high-temperature heat pump |
| CN107120831A (en) * | 2017-05-27 | 2017-09-01 | 南京理工大学 | A kind of continuous heating air friction drag |
| CN107120831B (en) * | 2017-05-27 | 2019-07-16 | 南京理工大学 | A kind of continuous heating air friction drag |
| CN108036557A (en) * | 2017-12-28 | 2018-05-15 | 广东芬尼克兹节能设备有限公司 | A kind of parallel connection Cascade type heat pump system |
| CN108036557B (en) * | 2017-12-28 | 2023-11-14 | 广东芬尼克兹节能设备有限公司 | Parallel cascade heat pump system |
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