CN208704199U - Air-source with second vapor injection-water source combined heat-pump system - Google Patents
Air-source with second vapor injection-water source combined heat-pump system Download PDFInfo
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- CN208704199U CN208704199U CN201821451478.6U CN201821451478U CN208704199U CN 208704199 U CN208704199 U CN 208704199U CN 201821451478 U CN201821451478 U CN 201821451478U CN 208704199 U CN208704199 U CN 208704199U
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Abstract
The utility model provides a kind of air-source with second vapor injection-water source combined heat-pump system, including second vapor injection screw compressor, economizer, gas-liquid separator, domestic hot water side heat exchanger, water source side heat exchanger, finned tube exchanger and device for drying and filtering etc.；This system, which can be realized, independently carries out heating and refrigeration using air-source and water source two ways, and the highest operational mode of efficiency is automatically selected according to air themperature and water source temperature condition, when air-source progress heating operation is used alone, minimum environment temperature can reach -20 DEG C, can effectively solve air source heat pump and limit in the use of north cold area.
Description
Technical field
The utility model relates to a kind of heat pump system, the especially a kind of air-source with second vapor injection-water source combined heat-pump
System.
Background technique
Northern China cold district winter universal heating, it is most by the way of coal-fired central heating, it exists simultaneously a small amount of
Discrete areas boiler room and personal electric heater and miniature coal, fuel-oil or fuel-gas boiler etc. carry out warming, energy wave
Bring is the continuous aggravation of environmental pollution while expense.
As a kind of energy conservation and environmental protection technology, air source heat pump has good safety, and installs, using simple, alive
Boundary's range is widely used.Due to being influenced by outdoor environment temperature, normal air source heat pump unit is being lower than subzero 5
DEG C environment in be not normally functioning and face the problems such as heating efficiency is low, delivery temperature is high, seriously limit air source heat pump
Use of this power-saving technology in north cold area.
Another patent (patent No.: ZL 200920203070.1, patent name: the quasi- two-stage air source of low temperature of applicant
Heat pump assembly) second vapor injection screw compressor and its improved system are used, it can be long-term steady in -20 DEG C or more of low temperature environment
Determine, efficiently run, the hot water of 50 DEG C of preparation or more meets the requirement of north cold area winter heating and health hot water.This
Above-mentioned patented technology is further improved by utility model, and providing one kind can be realized independently using two kinds of air-source and water source
Mode carries out heating and refrigeration, and automatically selects the compound of efficiency highest operational mode according to air themperature and water source temperature condition
Type heat pump has further widened range and flexibility that air source heat pump uses.
Utility model content
In order to overcome the shortcomings of air source heat pump in north cold area using limited, the utility model is provided in a kind of band
Between tonifying Qi air-source-water source combined heat-pump system, can be realized and independently carried out using air-source and water source two ways
Heating and refrigeration, and efficiency highest operational mode is automatically selected according to air themperature and water source temperature, it can effectively solve air-source
Use of the heat pump in north cold area limits.
The technical scheme adopted by the utility model to solve the technical problem is as follows: air-source-water source with second vapor injection is multiple
Close heat pump system, including second vapor injection screw compressor, economizer, gas-liquid separator, domestic hot water side heat exchanger, the heat exchange of water source side
Device, finned tube exchanger and device for drying and filtering；A mouthfuls of phases of second vapor injection screw compressor exhaust outlet z and the first four-way reversing valve
Even, second vapor injection screw compressor air entry x is connected with the outlet of gas-liquid separator, second vapor injection screw compressor gas supplementing opening y
It is connected with i mouthfuls of economizer；The b mouth of first four-way reversing valve is connected for a mouthfuls with the second four-way reversing valve, the c of the first four-way reversing valve
Mouth is connected with gas-liquid separator entrance, and the d mouth of the first four-way reversing valve is connected for heat exchanger m mouthfuls with water source side；The commutation of second four-way
B mouthfuls of valve are connected with p mouthfuls of finned tube exchanger, and the d mouth of the second four-way reversing valve is connected with e mouthfuls of domestic hot water side heat exchanger, the second four-way
The c mouth of reversal valve is connected with gas-liquid separator entrance；
Q mouthfuls of finned tube exchanger, the pipeline of heat exchanger n mouthfuls of side of f mouthfuls of domestic hot water side heat exchanger and water source side and two branch of behavior,
A branch in two branches of each pipeline is connected in parallel to liquid storage device entrance, q mouthfuls of finned tube exchanger of branch setting the 4th
The 5th check valve, the branch setting the 6th of heat exchanger n mouthfuls of water source side is arranged in check valve, f mouthfuls of the domestic hot water side heat exchanger branch
Check valve；
Another branch in two branches of each pipeline is connected in parallel to main electronic expansion valve outlet, and q mouthfuls of finned tube exchanger
Serial the first check valve of branch setting, the first solenoid valve, f mouthful of domestic hot water side heat exchanger of branch setting serially second
Serial third check valve, third solenoid valve is arranged in check valve, second solenoid valve, the branch of heat exchanger n mouthfuls of water source side；
The j mouth of economizer is divided into two-way, is connected to the entrance of main electric expansion valve all the way, another way is through tonifying Qi electronic expansion
Valve is connected to the k mouth of economizer；Reservoir outlet is connected with device for drying and filtering entrance, and device for drying and filtering outlet is connected to economizer
H mouth.
Preferably, domestic hot water side heat exchanger and water source side heat exchanger are brazing plate type heat exchanger.
The beneficial effects of the utility model are:
1, domestic hot water side heat exchanger, water source side heat exchanger, finned tube exchanger and four-way is provided in the utility model to change
To valve, it can be realized by the power on/off of four-way reversing valve and solenoid valve and independently use air-source and water source two ways
Carry out heating and refrigeration.
2, this system uses economizer, on the one hand can be lowered into the refrigerant of main electric expansion valve than enthalpy, increase
Refrigerant degree of supercooling, improves the operating condition of main electric expansion valve, and the heat that increase system is extracted from low-temperature heat source is freezing
Refrigerating capacity can be increased under mode；On the other hand, the refrigerant for entering second vapor injection screw compressor intermediate fill gas mouth y is carried out
Preheating effectively prevent the refrigerant into second vapor injection screw compressor to contain liquid, prevents compressor Wet Compression, while effectively
The temperature of second vapor injection screw compressor exhaust is reduced, and increases exhaust enthalpy, to increase the heating capacity of system.
3, second vapor injection screw compressor and refrigerant special loop are used in this system, it can be low at -20 DEG C or more
It is stable for a long time in warm environment, efficiently run, meet the requirement of north cold area winter heating and health hot water.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
In Fig. 1,1. second vapor injection screw compressors, 2. gas-liquid separators, 3. liquid storage devices, 4. finned tube exchangers, 5. is empty
Adjust side heat exchanger, 6. water source side heat exchangers, 7. economizers, 8. first four-way reversing valves, 9. second four-way reversing valves, 10. tonifying Qi
Electric expansion valve, 11. main electric expansion valves, 12. first solenoid valves, 13. second solenoid valves, 14. third solenoid valves, 15. first
Check valve, 16. second one-way valves, 17. third check valves, 18. the 4th check valves, 19. the 5th check valves, 20. the 6th check valves,
21. device for drying and filtering, 22. air-conditioning side water circulating pumps, 23. water source side water circulating pumps.
Specific embodiment
The utility model is described in detail below in conjunction with drawings and examples.
Embodiment one
As shown in Figure 1,1 exhaust outlet z of second vapor injection screw compressor is connected for 8a mouthfuls with the first four-way reversing valve, the first four-way
8b mouthfuls of reversal valve with the second four-way reversing valve 9a mouthfuls be connected, the m mouth phase of the first 8d mouthfuls of four-way reversing valve and water source side heat exchanger 6
Even, the second 9d mouthfuls of four-way reversing valve is connected with the e of domestic hot water side heat exchanger 5 mouth, and the second 9b mouthfuls of four-way reversing valve and finned tube exchange heat
The p mouth of device 4 is connected；After first 8c mouthfuls of four-way reversing valve, 9c mouthfuls of the second four-way reversing valve are in parallel with 2 entrance phase of gas-liquid separator
Even, the outlet of gas-liquid separator 2 is connected with 1 air entry x of second vapor injection screw compressor；The q mouth of finned tube exchanger 4, air-conditioning side
The f mouth of heat exchanger 5, the pipeline of the n mouth side of water source side heat exchanger 6 are respectively divided into two-way, connect the 4th check valve 18, respectively all the way
3 entrance of liquid storage device is parallel-connected to after five check valves 19, the 6th check valve 20, refrigerant can only be from the q of finned tube exchanger 4
Mouth, the f mouth of domestic hot water side heat exchanger 5, water source side heat exchanger 6 entrance from n mouth effluent to liquid storage device 3；Another way is connected respectively to
The outlet of main electric expansion valve 11, be respectively set on being connected to the pipeline that main electric expansion valve 11 exports the first check valve 15,
Second one-way valve 16, third check valve 17 and the first solenoid valve 12, second solenoid valve 13, third solenoid valve 14, refrigerant is only
It can be exported from main electric expansion valve 11 and flow to the q mouth of finned tube exchanger 4, the f mouth of domestic hot water side heat exchanger 5, water source side heat exchanger 6
N mouth；The j mouth of economizer 7 is divided into two-way, is directly connected to the entrance of main electric expansion valve 11 all the way, another way is through tonifying Qi electricity
Sub- expansion valve 10 is connected to the k mouth of economizer 7；The h mouth of economizer 7 is connected with the outlet of device for drying and filtering 21, the i of economizer 7
Mouth is connected with 1 gas supplementing opening y of second vapor injection screw compressor；The outlet of liquid storage device 3 is connected with the entrance of device for drying and filtering 21.
The electric controller of the utility model can be compared according to current outdoor environment temperature and water source side temperature,
In a heating mode, when water source side temperature, which is greater than outdoor environment temperature, subtracts setting deviation, water source heat pump heating side is selected
Formula, when water source side temperature is less than when outdoor environment temperature subtracts setting deviation or water source side temperature is lower than setting value, choosing
Select air source heat pump heating mode；In cooling mode, setting deviation is subtracted when water source side temperature is greater than outdoor environment temperature
When, air source heat pump refrigeration modes are selected, when water source side temperature, which is less than outdoor environment temperature, subtracts setting deviation, select water
Source heat pump refrigerating mode.Deviation is set, according to finned tube exchanger and water source side brazing plate type heat exchanger design parameter difference
And value is different, value range is between 4~8 DEG C under normal conditions.
Embodiment two
As shown in Figure 1, the first solenoid valve 12, which is powered, to be opened, second solenoid valve in the case where air source heat pump runs heating mode
13, third solenoid valve 14 is obstructed is electrically turn off, and the second four-way reversing valve 9 is powered, and the exhaust of second vapor injection screw compressor 1 enters first
The a mouth of four-way reversing valve 8 enters a mouth of the second four-way reversing valve 9 after b mouthfuls of discharges, is then discharged from d mouthfuls, into air-conditioning side
Heat exchanger 5, with circulation heat exchange after, by the 5th check valve 19 enter liquid storage device 3, from liquid storage device 3 come out after through overdrying
Dry filter 21 enters the h mouth of economizer 7, flows out after heat exchange from j mouthfuls, is divided into two-way, passes through tonifying Qi electric expansion valve 10 all the way
It is another through by the i mouthful gas supplementing opening y into second vapor injection screw compressor 1 after exchanging heat in economizer into the k mouth of economizer 7
Road enters finned tube exchanger 4 after the throttling of main electric expansion valve 11, through the first solenoid valve 12 and the first check valve 15,
After absorbing the heat in air in finned tube exchanger 4, into the b mouth of the second four-way reversing valve 9, enter gas-liquid from c mouthfuls of outflows
After separator 2 carries out gas-liquid separation, gas returns to the air entry x of second vapor injection screw compressor 1.
In the case where air source heat pump runs refrigeration mode, the first solenoid valve 12, third solenoid valve 14 is obstructed is electrically turn off, the second electricity
Magnet valve 13, which is powered, to be opened, and the exhaust of second vapor injection screw compressor 1 enters a mouth of the first four-way reversing valve 8, laggard from b mouthfuls of discharges
Enter a mouth of the second four-way reversing valve 9, be then discharged from b mouthfuls, into finned tube exchanger 4, into air after heat release, by the
Four check valves 18 enter liquid storage device 3, from liquid storage device 3 come out after by device for drying and filtering 21 enter economizer 7 h mouth, after heat exchange
It is flowed out from j mouthfuls, is divided into two-way, enter the k mouth of economizer 7 by tonifying Qi electric expansion valve 10 all the way, after exchanging heat in economizer 7
Enter the gas supplementing opening y of second vapor injection screw compressor 1 via i mouthfuls, another way is after the throttling of main electric expansion valve 11, by the
Two solenoid valves 13 and second one-way valve 16 enter domestic hot water side heat exchanger 5, after circulation heat exchange, commutate into the second four-way
The d mouth of valve 9 is flowed out from c mouthfuls after entering the progress gas-liquid separation of gas-liquid separator 2, and gas returns to second vapor injection screw compressor 1
Air entry x.
Embodiment three
As shown in Figure 1, the first solenoid valve 12,13 no power of second solenoid valve close in the case where water resource heat pump runs heating mode
It closes, third solenoid valve 14 is opened, and the second four-way reversing valve 9 is powered, and the exhaust of second vapor injection screw compressor 1 enters the first four-way and changes
To a mouth of valve 8, a mouth of the second four-way reversing valve 9 is entered after b mouthfuls of discharges, is then discharged from d mouthfuls, into domestic hot water side heat exchanger
5, with water system heat exchange after, by the 5th check valve 19 enter liquid storage device 3, from liquid storage device 3 come out after by device for drying and filtering 21
It into the h mouth of economizer 7, is flowed out after heat exchange from j mouthfuls, is divided into two-way, enter economizer 7 by tonifying Qi electric expansion valve 10 all the way
K mouth, enter the gas supplementing opening y of second vapor injection screw compressor 1 after exchanging heat in economizer 7 through i mouthful, another way is by main electronics
After expansion valve 11 throttles, water source side heat exchanger 6 is entered by third solenoid valve 14 and third check valve 17, is entered after absorbing heat
The d mouth of first four-way reversing valve 8 flows out after entering the progress gas-liquid separation of gas-liquid separator 2 from c mouthfuls, returns to second vapor injection vortex
The air entry x of compressor 1.
In the case where water resource heat pump runs refrigeration mode, second solenoid valve 13, which is powered, to be opened, the first solenoid valve 12, third solenoid valve
14 it is obstructed be electrically turn off, the first four-way reversing valve 8 is powered, and the exhaust of second vapor injection screw compressor 1 enters first four-way reversing valve 8
It a mouthfuls, is then discharged from d mouthfuls, into water source side heat exchanger 6, enters liquid storage device 3 by the 6th check valve 20 after heat release, from liquid storage
Device 3 enters the h mouth of economizer 7 by device for drying and filtering 21 after coming out, flow out after heat exchange from j mouthfuls, be divided into two-way, all the way through overfill
Gas electric expansion valve 10 enters the k mouth of economizer 7, enters second vapor injection screw compressor 1 through i mouthfuls after exchanging heat in economizer 7
Gas supplementing opening y, another way after the throttling of main electric expansion valve 11, pass through second solenoid valve 13 and second one-way valve 16 enter it is empty
Side heat exchanger 5 is adjusted, after circulation heat exchange, into the d mouth of the second four-way reversing valve 9, enters gas-liquid separation from c mouthfuls of outflows
After device 2 carries out gas-liquid separation, the air entry x of second vapor injection screw compressor 1 is returned to.
This system uses economizer 7, on the one hand can be lowered into the refrigerant of main electric expansion valve 11 than enthalpy, increase
Refrigerant degree of supercooling, improves the operating condition of main electric expansion valve 11, and the heat that increase system is extracted from low-temperature heat source is being made
Refrigerating capacity can be increased under cold mode；On the other hand, to the refrigerant for entering 1 intermediate fill gas mouth y of second vapor injection screw compressor
It is preheated, effectively prevent containing liquid into the refrigerant of second vapor injection screw compressor 1, prevent compressor Wet Compression,
The temperature of the exhaust of second vapor injection screw compressor 1 is effectively reduced simultaneously, and increases exhaust enthalpy, to increase the heating of system
Amount.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is practical according to this in the technical scope that the utility model discloses
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (2)
1. a kind of air-source with second vapor injection-water source combined heat-pump system, it is characterised in that: including second vapor injection scroll compression
Machine (1), economizer (7), gas-liquid separator (2), domestic hot water side heat exchanger (5), water source side heat exchanger (6), finned tube exchanger (4)
And device for drying and filtering (21)；A mouthfuls of phases of second vapor injection screw compressor (1) the exhaust outlet z and the first four-way reversing valve (8)
Even, second vapor injection screw compressor (1) air entry x is connected with the outlet of gas-liquid separator (2), second vapor injection screw compressor
(1) gas supplementing opening y is connected with the i mouth of economizer (7)；The b mouth and the second four-way reversing valve of first four-way reversing valve (8)
(9) be connected for a mouthfuls, c mouthful of the first four-way reversing valve (8) are connected with gas-liquid separator (2) entrance, d mouthfuls of the first four-way reversing valve (8) and
M mouthfuls of water source side heat exchanger (6) are connected；The b mouth of second four-way reversing valve (9) is connected for p mouthfuls with finned tube exchanger (4),
The d mouth of second four-way reversing valve (9) is connected for e mouthfuls with domestic hot water side heat exchanger (5), c mouthfuls of the second four-way reversing valve (9) and gas-liquid separation
Device (2) entrance is connected；
Q mouthfuls of finned tube exchanger (4), the pipeline of f mouthfuls of domestic hot water side heat exchanger (5) and water source side heat exchanger (6) n mouthfuls of sides and behavior two
Branch, the branch in two branches of each pipeline are connected in parallel to liquid storage device (3) entrance, the branch of q mouthfuls of finned tube exchanger (4)
The 4th check valve (18) is arranged in road, and the 5th check valve (19), the heat exchange of water source side is arranged in the branch of f mouthfuls of domestic hot water side heat exchanger (5)
The 6th check valve (20) is arranged in the branch of n mouthfuls of device (6)；
Another branch in two branches of each pipeline is connected in parallel to main electric expansion valve (11) outlet, finned tube exchanger (4) q
Serial the first check valve (15) of the branch setting of mouth, the first solenoid valve (12), the branch of f mouthfuls of domestic hot water side heat exchanger (5)
Serial second one-way valve (16), second solenoid valve (13) are set, and the branch of n mouthfuls of water source side heat exchanger (6) is arranged serial
Third check valve (17), third solenoid valve (14)；
The j mouth of the economizer (7) is divided into two-way, is connected to the entrance of main electric expansion valve (11) all the way, another way is through mending
Gas electric expansion valve (10) is connected to the k mouth of economizer (7)；Liquid storage device (3) outlet is connected with device for drying and filtering (21) entrance, does
Dry filter (21) outlet is connected to the h mouth of economizer (7).
2. the air-source with second vapor injection-water source combined heat-pump system according to claim 1, it is characterised in that: described
Domestic hot water side heat exchanger (5) and water source side heat exchanger (6) be brazing plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821451478.6U CN208704199U (en) | 2018-09-06 | 2018-09-06 | Air-source with second vapor injection-water source combined heat-pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821451478.6U CN208704199U (en) | 2018-09-06 | 2018-09-06 | Air-source with second vapor injection-water source combined heat-pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704199U true CN208704199U (en) | 2019-04-05 |
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ID=65946594
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821451478.6U Expired - Fee Related CN208704199U (en) | 2018-09-06 | 2018-09-06 | Air-source with second vapor injection-water source combined heat-pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208704199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000387A (en) * | 2018-09-06 | 2018-12-14 | 大连民族大学 | Air-source with second vapor injection-water source combined heat-pump system |
-
2018
- 2018-09-06 CN CN201821451478.6U patent/CN208704199U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000387A (en) * | 2018-09-06 | 2018-12-14 | 大连民族大学 | Air-source with second vapor injection-water source combined heat-pump system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20210906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |