CN204693890U - The heat recovery system of Air Resource Heat Pump Unit - Google Patents
The heat recovery system of Air Resource Heat Pump Unit Download PDFInfo
- Publication number
- CN204693890U CN204693890U CN201520324684.0U CN201520324684U CN204693890U CN 204693890 U CN204693890 U CN 204693890U CN 201520324684 U CN201520324684 U CN 201520324684U CN 204693890 U CN204693890 U CN 204693890U
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- CN
- China
- Prior art keywords
- heat
- heat exchanger
- cross valve
- check valve
- pump unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of heat recovery system of Air Resource Heat Pump Unit, include heat exchanger, the first check valve, the second check valve, condenser, cross valve, compressor and gas-liquid separator, draw pipeline from the port of export of heat exchanger and after connecting the first check valve, be divided into two branch roads, one of them branch road is connected with condenser, the pipeline of drawing with the entrance end from heat exchanger after another branch road connects the second check valve is compiled in one and is connected with cross valve, and cross valve, compressor and gas-liquid separator are circulated successively by pipeline and be connected.When the utility model not only effectively can prevent winter heating there is the possibility of liquid hammer in cross valve, and heating capacity and heating energy efficiency ratio can not be had influence on when heat pump heats, solve the problem of the cross valve liquid hammer that may occur in the refrigeration system of band condensing units function.
Description
Technical field
The utility model relates to the Condensation Heat Recovery Technology field of air-conditioning, specifically a kind of heat recovery system of Air Resource Heat Pump Unit.
Background technology
Air Resource Heat Pump Unit condensing units, as the design of domestic hot-water's thermal source, just progressively develops to normalization.Along with country is to the attention of air source heat pump efficiency, industry starts to carry out Recycle network to the condensation heat of Air Resource Heat Pump Unit.When reclaiming the condensation heat of Air Resource Heat Pump Unit, a series connection water-refrigerant heat exchanger (being called heat recovering heat exchanger afterwards) between exhaust outlet of compressor to condenser, from compressor discharge high-temperature high-pressure refrigerant after carrying out heat exchange with the domestic hot-water heat recovering heat exchanger, carry out train condenser continuation heat exchange after part condensation heat is absorbed by domestic hot-water again and carry out kind of refrigeration cycle, and domestic hot-water is supplied to user's use after heat temperature raising.In the cooling by wind of Dan Leng, heat recovering heat exchanger is directly connected on exhaust outlet of compressor place, then receives on finned cooler.But, if Air-Cooled Heat Pump Unit (band cross valve), where does is heat recovering heat exchanger connected on? with regard to existing market investigation, the heat pump of most of producer is the same with the position in single cooler group carried before, and heat recovering heat exchanger is still connected on exhaust outlet.But winter remains water in heat recovering heat exchanger usually, especially at the severe cold season that temperature is low especially, residual water at low temperature in heat recovering heat exchanger can be condensed into compressor air-discharging the cold-producing medium of saturation state or even supercooled state, enter cross valve afterwards, in this case cross valve liquid hammer may be caused, cross valve is damaged, and whole system paralyses.
Utility model content
The purpose of this utility model is to provide a kind of heat recovery system of Air Resource Heat Pump Unit, when not only effectively can prevent winter heating there is the possibility of liquid hammer in cross valve, and heating capacity and heating energy efficiency ratio can not be had influence on when heat pump heats, solve the problem of the cross valve liquid hammer that may occur in the refrigeration system of band condensing units function.
The technical solution of the utility model is as follows:
A kind of heat recovery system of Air Resource Heat Pump Unit, include heat exchanger, first check valve, second check valve, condenser, cross valve, compressor and gas-liquid separator, it is characterized in that: after the port of export of described heat exchanger draws first check valve of pipeline also described in connection, be divided into two branch roads, one of them branch road is connected with described condenser, be compiled in one with the pipeline that the entrance end from described heat exchanger is drawn and be connected with described cross valve after the second check valve described in another branch road connects, described cross valve, compressor and gas-liquid separator are circulated successively by pipeline and are connected.
The heat recovery system of described Air Resource Heat Pump Unit, is characterized in that: described heat exchanger adopts recuperation of heat double pipe heat exchanger.
The heat recovery system of described Air Resource Heat Pump Unit, is characterized in that: described condenser adopts finned cooler.
In air source heat pump field, much all adopt Condensation Heat Recovery Technology, to obtain domestic hot-water and to improve refrigeration performance, and heat recovering heat exchanger is generally all connected on exhaust outlet of compressor, but when oppositely heating, generally all can remain a part of water in heat recovering heat exchanger, particularly in the season of severe cold, cross valve is entered after being condensed to low-pressure gas-liquid two-phase after the high-temperature high-pressure refrigerant gas of discharging from compressor mouth to run into heat recovering heat exchanger residual moisture, and a period of time cross valve can be switched to heating mode after unit start, and saturated or supercooled liquid is out known from experience and is caused cross valve liquid hammer from heat recovering heat exchanger, cross valve slide block moment is washed out distortion, cannot normally work.The utility model can be used in the design of the air-cooled heat pump water chiller-heater units of all band heat recovery functions, both can not affect heat recovery function and reclaim heat, and having overcome again cross valve when heating and occur the weakness of liquid hit phenomenon possibility.
Install two groups of check valves additional after the utility model mainly adopts and heat recovering heat exchanger is connected on cross valve, when freezing, the high pressure refrigerant liquid of high-temperature high-pressure refrigerant gas first after cross valve of discharging from system compressors enters heat recovering heat exchanger and domestic hot-water carries out heat exchange, and then enters finned cooler.
The beneficial effects of the utility model:
1, during refrigeration, can be with that recuperation of heat unit is the same carries out condensing units with other, when heating, the high-temperature high-pressure refrigerant gas of discharging from compressor, first by entering heat recovering heat exchanger again after cross valve, has thoroughly evaded the possibility of cross valve liquid hammer.
2, the utility model one group of double pipe heat exchanger and two groups of check valves reclaim condensation heat, preventing the evaporimeter gas out when heating excessive through heat recovering heat exchanger resistance, making whole system on the basis normally can producing cold water, increase the function providing domestic hot-water.
3, heat recovering heat exchanger of the present utility model adopts double pipe heat exchanger instead of brazing plate type heat exchanger, prevents exhaust resistance during refrigeration excessive.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation, and wherein, refrigerant flow direction when solid arrow represents refrigeration, dotted arrow represents refrigerant flow direction when heating.
Detailed description of the invention
See Fig. 1, a kind of heat recovery system of Air Resource Heat Pump Unit, include heat exchanger 1, first check valve 2, second check valve 3, condenser 4, cross valve 5, compressor 6 and gas-liquid separator 7, draw pipeline from the port of export of heat exchanger 1 and be divided into two branch roads after connecting the first check valve 2, one of them branch road is connected with condenser 4, another branch road is compiled in one with the pipeline that the entrance end from heat exchange 1 device is drawn and is connected with cross valve 5 after connecting the second check valve 3, cross valve 5, compressor 6 and gas-liquid separator 7 are circulated successively by pipeline and are connected.
In the utility model, heat exchanger 1 adopts recuperation of heat double pipe heat exchanger; Condenser 4 adopts finned cooler.
During refrigeration, the high-temperature high-pressure refrigerant gas flow of discharging from compressor 6 enters heat exchanger 1 and carries out heat exchange with the domestic hot-water of lower temperature after cross valve 5, and heating domestic hot water, if by the water yield of the domestic hot-water heated is comparatively large or water temperature is lower, then then can become saturated cold-producing medium from heat exchanger 1 cold-producing medium out, otherwise, then then can become the lower refrigerant gas of temperature from heat exchanger 1 cold-producing medium out to enter condenser 4 again and carry out condensation or excessively cold, condensed cold-producing medium enters after evaporimeter absorption refrigeration through throttling and get back to compressor 6 after cross valve 5, carry out kind of refrigeration cycle next time again.
Claims (3)
1. the heat recovery system of an Air Resource Heat Pump Unit, include heat exchanger, first check valve, second check valve, condenser, cross valve, compressor and gas-liquid separator, it is characterized in that: after the port of export of described heat exchanger draws first check valve of pipeline also described in connection, be divided into two branch roads, one of them branch road is connected with described condenser, be compiled in one with the pipeline that the entrance end from described heat exchanger is drawn and be connected with described cross valve after the second check valve described in another branch road connects, described cross valve, compressor and gas-liquid separator are circulated successively by pipeline and are connected.
2. the heat recovery system of Air Resource Heat Pump Unit according to claim 1, is characterized in that: described heat exchanger adopts recuperation of heat double pipe heat exchanger.
3. the heat recovery system of Air Resource Heat Pump Unit according to claim 1, is characterized in that: described condenser adopts finned cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324684.0U CN204693890U (en) | 2015-05-19 | 2015-05-19 | The heat recovery system of Air Resource Heat Pump Unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324684.0U CN204693890U (en) | 2015-05-19 | 2015-05-19 | The heat recovery system of Air Resource Heat Pump Unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204693890U true CN204693890U (en) | 2015-10-07 |
Family
ID=54234171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520324684.0U Withdrawn - After Issue CN204693890U (en) | 2015-05-19 | 2015-05-19 | The heat recovery system of Air Resource Heat Pump Unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204693890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896794A (en) * | 2015-05-19 | 2015-09-09 | 合肥天鹅制冷科技有限公司 | Heat recovery system of air source heat pump cold and hot water unit |
-
2015
- 2015-05-19 CN CN201520324684.0U patent/CN204693890U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896794A (en) * | 2015-05-19 | 2015-09-09 | 合肥天鹅制冷科技有限公司 | Heat recovery system of air source heat pump cold and hot water unit |
| CN104896794B (en) * | 2015-05-19 | 2018-01-12 | 合肥天鹅制冷科技有限公司 | The heat recovery system of Air Resource Heat Pump Unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20180112 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20180112 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |