CN206055995U - A kind of cascade type heat pump of dual temperature-rise - Google Patents
A kind of cascade type heat pump of dual temperature-rise Download PDFInfo
- Publication number
- CN206055995U CN206055995U CN201621073028.9U CN201621073028U CN206055995U CN 206055995 U CN206055995 U CN 206055995U CN 201621073028 U CN201621073028 U CN 201621073028U CN 206055995 U CN206055995 U CN 206055995U
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- China
- Prior art keywords
- compressor
- heat pump
- condenser
- heat exchanger
- rise
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of cascade type heat pump of dual temperature-rise, including the first condenser for constituting first circulation loop successively, the first expansion valve, Intermediate Heat Exchanger, and the first compressor；Also include constituting second compressor in second circulation loop, Intermediate Heat Exchanger, the second condenser, the second expansion valve, and vaporizer.The beneficial effects of the utility model：For by double-stage heating, heat pump heat supply amount being improved under the working condition of " cool water heating becomes hot water " or " cold air heating becomes hot blast ", increase systematic energy efficiency ratio.In the higher operation for waiting cancellation hiigh pressure stage heat pump under specific operation of ambient temperature, and individually work in the way of single-stage is heated.
Description
Technical field
This utility model is related to technical field of heat pumps, more particularly to a kind of cascade type heat pump of dual temperature-rise.
Background technology
Statement in this part merely provides the background information relevant with present disclosure, thereby increases and it is possible to do not constitute
Prior art.
Conventional superposition type double stage heat pump has been able to certain application and popularization in society.But prior art is answered
Its Energy Efficiency Ratio of stacked bipolar heat pump is too low, cannot also realize that the mode that single-stage is heated works.
Therefore prior art has much room for improvement and develops.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of Energy Efficiency Ratio height, can cancel hiigh pressure stage heat pump
Operation, and the cascade type heat pump of the dual temperature-rise for individually working in the way of single-stage is heated.
Technical solution of the present utility model is：A kind of cascade type heat pump of dual temperature-rise, follows including constituting first successively
First condenser of loop back path, the first expansion valve, Intermediate Heat Exchanger, and the first compressor；Also include that constituting second successively follows
Second compressor of loop back path, Intermediate Heat Exchanger, the second condenser, the second expansion valve, and vaporizer；Heated liquid or
Person's gas is after the second condenser again through the first condenser.
The bypass line of provided with electromagnetic valve is provided between second compressor and the second condenser.
Four-way change-over valve is being provided between the gateway of the second compressor, two other interface point of the four-way change-over valve
Lian Jie not Intermediate Heat Exchanger and vaporizer.
Cold-producing medium working medium on first circulation loop and second circulation loop can be the same or different, and vaporizer can
Be can also be with water or the vaporizer of other liquid heat exchanges, the first condenser and the second condensation with the vaporizer of air heat-exchange
Device can be can also be with water or the heat exchanger of other liquid heat exchanges with the heat exchanger of air heat-exchange.
Certainly technical solutions of the utility model can be connected to following accessory：Oil eliminator, high-pressure reservoir, gas-liquid separation
Device, economizer, electromagnetic valve, check valve.
The beneficial effects of the utility model：
1st, for being added by twin-stage under the working condition of " cool water heating becomes hot water " or " cold air heating becomes hot blast "
Heat, there is provided heat pump heat supply amount, increases systematic energy efficiency ratio.
2nd, cancel the operation of hiigh pressure stage heat pump under the specific operation such as ambient temperature is higher, and individually with single-stage system
The mode of heat works.
3rd, due to increased the second condenser, so the heat pump using above structure in the low temperature environment for needing defrosting can
In order to preferably form defrosting process using modes such as reverse cycle defrostings.
Description of the drawings
Fig. 1 is 1 structural representation of this utility model embodiment；
Fig. 2 is 2 structural representation of embodiment；
Fig. 3 is 3 structural representation of embodiment.
Specific embodiment
Embodiment：
Refering to Fig. 1, the first compressor 4 gaseous refrigerant out becomes liquid refrigerant through 1 heat release of the first condenser,
Absorb heat into Intermediate Heat Exchanger 3 after the first expansion valve 2 throttles, become gaseous refrigerant and return to the first compressor 4.It is same with this
When, the second compressor 8 gaseous refrigerant out enters back into 5 heat release of the second condenser into after 3 heat release of Intermediate Heat Exchanger to be become
Liquid refrigerant, absorbs heat into vaporizer 7 after the second expansion valve 6 throttles, the second compression is returned to after becoming gaseous refrigerant
Machine 8.Cold water enters back into the heat absorption of the first condenser 1 after the heat absorption of the second condenser 5 becomes high-temperature-hot-water.
When the first compressor 4 does not work, the second compressor 8 can work independently, and now system becomes single-stage heating
Heating, cold water are only absorbed heat through the second condenser 5.
First compressor, the first condenser, the first expansion valve operating pressure are higher；Second compressor, the second condenser, the
Two expansion valve operating pressures are relatively low.
Embodiment 2：
Refering to Fig. 2：In order to strengthen the performance of single-stage compressor operation, increase by 9 bypass pipe of electromagnetic valve on the basis of Fig. 1
Road, now the second compressor 8 most of gaseous refrigerant out is straight through bypass solenoid valve 9 without Intermediate Heat Exchanger 3
Tap into into the second condenser 5.
Embodiment 3：
Refering to Fig. 3：In order to preferably solve the problems, such as 7 defrosting of vaporizer, increase four-way change-over valve 10 on the basis of Fig. 1,
The four-way change-over valve 10 that specifically pipeline of the outlet of the second compressor 8 is arranged, the first of four-way change-over valve 10 goes out
Mouth is connected with the pipeline of 3 import of Intermediate Heat Exchanger, and the 3rd outlet is connected with the pipeline of the outlet of vaporizer 7, central exit
Pipeline is connected to 8 import of the second compressor.
During normal heating operation, the second compressor 8 gaseous refrigerant out is changed into centre after four-way change-over valve 10
Hot device 3 and 5 heat release of the second condenser become liquid refrigerant, then absorb heat into vaporizer 7 after the second expansion valve 6 throttles,
The second compressor 8 is returned to through four-way change-over valve 10 after becoming gaseous refrigerant.
In Defrost operation, four-way change-over valve 10 commutates, and the second compressor 8 gaseous refrigerant out commutates through four-way
Become liquid refrigerant into 7 heat release of vaporizer after valve 10, then inhale into the second condenser 5 after the second expansion valve 6 throttles
Heat, returns to the second compressor 8 through Intermediate Heat Exchanger 3 and four-way change-over valve 10 after becoming gaseous refrigerant.
In the description of this specification, the description of term " one embodiment " etc. means to describe with reference to the embodiment or example
Specific features, structure, material or feature be contained at least one embodiment of the present utility model or example.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the specific features of description,
Structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.
Claims (3)
1. a kind of cascade type heat pump of dual temperature-rise, it is characterised in that：Including the first condenser for constituting first circulation loop successively,
First expansion valve, Intermediate Heat Exchanger, and the first compressor；Also include constituting successively second compressor in second circulation loop,
Intermediate Heat Exchanger, the second condenser, the second expansion valve, and vaporizer；Heated liquid or gas are through the second condensation
Again through the first condenser after device.
2. the cascade type heat pump of dual temperature-rise according to claim 1, it is characterised in that：In second compressor and second
The bypass line of provided with electromagnetic valve is provided between condenser.
3. the cascade type heat pump of dual temperature-rise according to claim 1, it is characterised in that：In the gateway of the second compressor
Between be provided with four-way change-over valve, two other interface of the four-way change-over valve connects Intermediate Heat Exchanger and vaporizer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073028.9U CN206055995U (en) | 2016-09-23 | 2016-09-23 | A kind of cascade type heat pump of dual temperature-rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073028.9U CN206055995U (en) | 2016-09-23 | 2016-09-23 | A kind of cascade type heat pump of dual temperature-rise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206055995U true CN206055995U (en) | 2017-03-29 |
Family
ID=58366220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073028.9U Expired - Fee Related CN206055995U (en) | 2016-09-23 | 2016-09-23 | A kind of cascade type heat pump of dual temperature-rise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206055995U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288476A (en) * | 2016-09-23 | 2017-01-04 | 苏州热火能源科技有限公司 | A kind of cascade type heat pump of dual temperature-rise |
| CN107014098A (en) * | 2017-05-24 | 2017-08-04 | 江苏苏净集团有限公司 | A kind of carbon dioxide heat-pump heating system |
| CN110486998A (en) * | 2019-07-24 | 2019-11-22 | 苏州佳世达电通有限公司 | Ice water system |
-
2016
- 2016-09-23 CN CN201621073028.9U patent/CN206055995U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288476A (en) * | 2016-09-23 | 2017-01-04 | 苏州热火能源科技有限公司 | A kind of cascade type heat pump of dual temperature-rise |
| CN107014098A (en) * | 2017-05-24 | 2017-08-04 | 江苏苏净集团有限公司 | A kind of carbon dioxide heat-pump heating system |
| CN107014098B (en) * | 2017-05-24 | 2023-06-02 | 江苏苏净集团有限公司 | Carbon dioxide heat pump heating system |
| CN110486998A (en) * | 2019-07-24 | 2019-11-22 | 苏州佳世达电通有限公司 | Ice water system |
| CN110486998B (en) * | 2019-07-24 | 2021-06-08 | 苏州佳世达电通有限公司 | Ice water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20180923 |