CN209672648U - A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit - Google Patents
A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit Download PDFInfo
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- CN209672648U CN209672648U CN201920187041.4U CN201920187041U CN209672648U CN 209672648 U CN209672648 U CN 209672648U CN 201920187041 U CN201920187041 U CN 201920187041U CN 209672648 U CN209672648 U CN 209672648U
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- compressor
- heat pump
- refrigeration unit
- heat
- evaporator
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Abstract
The utility model discloses a kind of opened water steam heat pumps and the cold-heat combined system of cascade refrigeration unit, which is characterized in that including opened water steam heat pump and cascade refrigeration unit；Opened water steam heat pump is connected with cascade refrigeration unit；The opened water steam heat pump, the condensation heat generated for recycling the cascade refrigeration unit.A kind of opened water steam heat pump disclosed by the utility model and the cold-heat combined system of cascade refrigeration unit, using natural refrigerant water as opened water steam heat pump fluid, its condensation heat that can effectively recycle cascade refrigeration unit, to improve the working efficiency of refrigeration unit, avoid the waste of thermal energy, be conducive to promote and apply, be of great practical significance.
Description
Technical field
The utility model relates to heat recovery technology fields, more particularly to a kind of opened water steam heat pump and cascade refrigeration
The cold-heat combined system of unit.
Background technique
With the fast development of world economy, energy consumption is got worse.Currently, energy-saving and emission-reduction, waste heat recycling at
For the important content of our country energy development strategy.At the same time, another problem of rapid economic development bring is exactly environment dirt
Dye, the environmental problems such as greenhouse effects, depletion of the ozone layer are concerned, and protection environment is extremely urgent.
The waste heat recycling of heat pump form is a kind of important technical of energy-saving and emission-reduction.Currently used heat pump fluid is mostly people
Work synthesizes working medium, such as R134a, R245fa belong to transition working medium, and future is replaced at last.
As the improvement of people's living standards, requiring increasingly to increase to quality of life, therefore freezer rapidly develops.Currently,
The condensation heat of cascade refrigeration unit is because sample lower, it is difficult to recycle, be discharged into environment substantially, cause energy dissipation.
The low-grade condensation heat for how recycling cascade refrigeration unit, does not cause environmental pollution, extremely urgent.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of opened water steam heat pump and cascade refrigeration unit are cold and hot
Production system can effectively recycle the condensation heat of cascade refrigeration unit, to improve the working efficiency of refrigeration unit, avoid thermal energy
Waste, be conducive to promote and apply, be of great practical significance.
For this purpose, the utility model provides a kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit, packet
Include opened water steam heat pump and cascade refrigeration unit；
Opened water steam heat pump is connected with cascade refrigeration unit；
The opened water steam heat pump, the condensation heat generated for recycling the cascade refrigeration unit.
Wherein, the opened water steam heat pump includes: heat exchanger, flash tank, heat pump compressor, water jet pump and circulating pump,
Wherein:
The heat pump fluid water out of heat exchanger is connected with flash tank；
The exhaust outlet of flash tank is connected with exhaust valve；
The steam (vapor) outlet of flash tank is connected with the steam inlet of heat pump compressor；
The liquid refrigerant outlet of flash tank is connected by circulating pump, third solenoid valve with the heat pump fluid water inlet of heat exchanger
It is logical；
The steam (vapor) outlet of heat pump compressor is connected with the first solenoid valve.
Wherein, the first solenoid valve uses the place of steam for connecting outside need.
Wherein, the working medium water inlet of heat pump compressor is connected by water jet pump with second solenoid valve.
Wherein, the working medium water inlet of heat pump compressor is also connected with the 4th solenoid valve.
Wherein, the cascade refrigeration unit includes: the first compressor, the first evaporator, condenser/evaporator, the second compressor
With the second evaporator, in which:
The refrigerant vapour outlet of first compressor is connected with the refrigerant inlet of heat exchanger；
The refrigerant outlet of heat exchanger is connected with the 5th solenoid valve and the 7th solenoid valve respectively；
The air entry phase that 5th solenoid valve passes through the first expansion valve, the first evaporator, the 6th solenoid valve and the first compressor
Connection；
The air entry phase that 7th solenoid valve passes through the second expansion valve, condenser/evaporator, the 8th solenoid valve and the first compressor
Connection；
The refrigerant outlet of second compressor is connected with the refrigerant inlet of condenser/evaporator by hollow pipeline；
The refrigerant outlet of condenser/evaporator by the refrigerant of the 9th solenoid valve, third expansion valve and the second evaporator into
Mouth is connected；
The refrigerant outlet of second evaporator is connected with the air entry of the second compressor.
Wherein, the first compressor is high pressure compressor；
Second compressor is low pressure compressor.
Wherein, the first evaporator is medium temperature evaporator；
Second evaporator is cryogenic vaporizer.
By the above technical solution provided by the utility model as it can be seen that compared with prior art, the utility model provides
A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit, can effectively recycle the condensation of cascade refrigeration unit
Heat avoids the waste of thermal energy to improve the working efficiency of refrigeration unit, is conducive to promote and apply, real with great production
Trample meaning.
Detailed description of the invention
Fig. 1 is a kind of knot of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit provided by the utility model
Structure schematic diagram；
In figure: 1. heat exchangers；2. flash tank；3. heat pump compressor；4. water jet pump；5. circulating pump；
6. the first compressor；7. the first evaporator；8. condenser/evaporator；9. the second compressor；10. the second evaporator；
11. exhaust valve；12. the first solenoid valve, 13. second solenoid valves, 14. third solenoid valves, 15. the 4th solenoid valves, 16.
5th solenoid valve, 18. the 6th solenoid valves, 19. the 7th solenoid valves, 21. the 8th solenoid valves, 22. the 9th solenoid valves；
17. the first expansion valve, 20. second expansion valves, 23. third expansion valves.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and embodiment
The utility model is described in further detail.
Referring to Fig. 1, the utility model provides a kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit,
Including opened water steam heat pump and cascade refrigeration unit；
Opened water steam heat pump is connected with cascade refrigeration unit；
The opened water steam heat pump, the condensation heat generated for recycling the cascade refrigeration unit.
In the present invention, in specific implementation, the opened water steam heat pump includes: heat exchanger 1, flash tank 2, heat pump
Compressor 3, water jet pump 4 and circulating pump 5, in which:
The heat pump fluid water out of heat exchanger 1 is connected (by hollow pipeline) with flash tank 2；
The exhaust outlet of flash tank 2 is connected (by hollow pipeline) with exhaust valve 11；
The steam (vapor) outlet of flash tank 2 is connected (by hollow pipeline) with the steam inlet of heat pump compressor 3；
The liquid refrigerant outlet of flash tank 2 by circulating pump 5, third solenoid valve 14 and heat exchanger 1 heat pump fluid water into
Mouth is connected (by hollow pipeline)；
The steam (vapor) outlet of heat pump compressor 3 is connected (by hollow pipeline) with the first solenoid valve 12；
First solenoid valve 12 uses the place of steam for connecting outside need；
It should be noted that the first solenoid valve 12, the place of steam, such as disinfection field are used for connecting outside need
Institute, butchery site etc..
In specific implementation, the working medium water inlet of heat pump compressor 3 is connected by water jet pump 4 with second solenoid valve 13 (logical
Cross hollow pipeline)；
It should be noted that second solenoid valve 13 is used to connect external running water pipe, to provide to heat pump compressor 3
The cooling water of cooling；
In specific implementation, the working medium water inlet of heat pump compressor 3 is also connected with the 4th solenoid valve 15 (by hollow pipe
Road)；
It should be noted that the 4th solenoid valve 15 is used to connect external running water pipe, to provide the work of heat pump cycle
Matter water or working substance steam；
In the present invention, in specific implementation, the cascade refrigeration unit includes: the first compressor 6, the first evaporator
7, condenser/evaporator 8, the second compressor 9 and the second evaporator 10, in which:
The refrigerant vapour outlet of first compressor 6 is connected (by hollow pipe with the refrigerant inlet of heat exchanger 1
Road)；
The refrigerant outlet (specially liquid refrigerant outlet) of heat exchanger 1 is electric with the 5th solenoid valve 16 and the 7th respectively
Magnet valve 19 is connected (by hollow pipeline)；
5th solenoid valve 16 passes through the first expansion valve 17, the first evaporator 7, the 6th solenoid valve 18 and the first compressor 6
Air entry (i.e. refrigerant inlet) is connected (by hollow pipeline)；
7th solenoid valve 19 passes through the second expansion valve 20, condenser/evaporator 8, the 8th solenoid valve 21 and the first compressor 6
Air entry (i.e. refrigerant inlet) is connected (by hollow pipeline)；
The refrigerant of the refrigerant outlet (i.e. low-temperature refrigerant steam (vapor) outlet) of second compressor 9 and condenser/evaporator 8 into
Mouth is connected by hollow pipeline；
The refrigerant outlet (i.e. refrigerant liquid outlet) of condenser/evaporator 8 passes through the 9th solenoid valve 22, third expansion valve
23 are connected with the refrigerant inlet of the second evaporator 10；
The refrigerant outlet of second evaporator 10 is connected (logical with the air entry (i.e. refrigerant inlet) of the second compressor 9
Cross hollow pipeline).
In the present invention, it should be noted that be by a segment pipe between the interconnected component of any two
It is connected.
It should be noted that the first compressor 6, the first evaporator 7 and condenser/evaporator 8 form the cascade refrigeration together
The high-temperature level part of unit, condenser/evaporator 8, the second compressor 9 and the second evaporator 10 form the cascade refrigeration machine together
The low-temperature level part of group.
In the present invention, it should be noted that the first compressor 6 is high pressure compressor (High-pressure
It compressor), is a kind of compressor classified by operating temperature, operating temperature is -30~50 DEG C；Its type is in piston
Have in formula, membrane type, screw and centrifugal compressor.First compressor 6 is steamed for compressing from the first evaporator 7 or condensation
The refrigerant vapour for sending out device 8, is compressed to high-pressure.
Second compressor 9 is low pressure compressor (Low pressure compressor), is classified by operating temperature
A kind of compressor, operating temperature are -80~-20 DEG C.Its type is equal in piston type, membrane type, screw and centrifugal compressor
Have.Second compressor 9 is compressed to the refrigerant gas of intermediate pressure for compressing the refrigerant vapour from the second evaporator 10
Body.
In the present invention, in specific implementation, the first evaporator 7 is medium temperature evaporator.First evaporator 7 is used for system
Cooling capacity is produced when in middle temperature operating mode.
In the present invention, in specific implementation, the second evaporator 10 is cryogenic vaporizer.Second evaporator 10 is for being
Cooling capacity is produced when system is in worst cold case.
In the present invention, in specific implementation, the opened water steam heat pump adopts water as working medium, generate 80 DEG C~
130 DEG C of high-temperature water vapors directly feed user's use.
In the present invention, in specific implementation, the opened water steam heat pump recycles cascade refrigeration machine by heat exchanger 1
The condensation temperature of the condensation heat that group generates, cascade refrigeration unit is controlled at 30 DEG C~40 DEG C.
In the present invention, in specific implementation, the cooling water of the opened water steam heat pump, through the 4th solenoid valve 15 into
Enter heat exchanger 1, to recycle the condensation heat of cascade refrigeration unit generation.
In the present invention, in specific implementation, the high-quality steam of the opened water steam heat pump passes through the first electromagnetism
Valve 12 directly feeds user's use, such as the place needed using steam such as sterilizes, butchers.
In the present invention, in specific implementation, the opened water steam heat pump passes through second solenoid valve 13, water jet pump 4,
It sprays water to heat pump compressor 3, row's temperature of heat pump compressor can be reduced, protect heat pump compressor, and increase steam
Flow.
In order to which the technical solution of the utility model is more clearly understood, the working principle of the utility model is carried out below
Explanation.
The starting procedure of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit: while opening cascade refrigeration machine
The high-temperature level part of group and opened water steam heat pump, when the evaporating temperature of condenser/evaporator meets the low-temperature level of cascade refrigeration unit
When partial condensation temperature requires, it is then turned on the low-temperature level part of cascade refrigeration unit.
For opened water steam heat pump: in the starting of opened water steam heat pump open type, first passing through exhaust valve 11 and open type is discharged
Incoagulable gas in vapor heat pump system closes exhaust valve 11 after completing exhaust, and system starts to operate normally；Working-medium water warp
4th solenoid valve 15 enters heat exchanger 1, so that heat exchange cooling is carried out to cascade refrigeration unit temperature refrigerant vapor, after heat absorption
Working-medium water enters flash tank 2 and carries out negative pressure evaporation, and unevaporated working-medium water returns to heat exchange by circulating pump 5, third solenoid valve 14
Device 1 participates in next round circulation to continue heat absorption；Steam in flash tank 2 after evaporation enters heat pump compressor 3, is compressed into height
The vapor of the vapor of warm high pressure, high temperature and pressure is discharged through the first solenoid valve 12, and supply user uses.
For cascade refrigeration unit: when system is in medium temperature cooling condition, closing the 7th solenoid valve 19, the 8th solenoid valve
21 and cascade refrigeration unit low-temperature level part；The refrigerant vapour of first evaporator (i.e. medium temperature evaporator) 7 is through the 6th electromagnetism
Valve 18 enters the first compressor 6 (i.e. high temperature press) and compresses, and compressed high-temperature high-pressure refrigerant steam enters in heat exchanger 1,
It can be condensed into refrigerant liquid with the heat exchange of opened water steam heat pump fluid water, refrigerant liquid is swollen through the 5th solenoid valve 16, first
Swollen valve 17 enters evaporation of absorbing heat in the first evaporator (i.e. medium temperature evaporator) 7, forms refrigeration cycle.When system is in cryogenic refrigeration
When operating condition, the 5th solenoid valve 16, the 6th solenoid valve 18 are closed；First start the high-temperature level part of cascade refrigeration unit, high-temperature level
Refrigerant vapour enters the first compressor 6 (i.e. high temperature press) through the 8th solenoid valve 21 and compresses, compressed high temperature and pressure refrigeration
Agent steam enters in heat exchanger 1, and refrigerant liquid, refrigerant liquid warp can be condensed into the heat exchange of opened water steam heat pump fluid water
7th solenoid valve 19, the second expansion valve 20 enter in condenser/evaporator 8, can exchange heat with the high-temperature refrigeration working substance steam of low-temperature level；
When the temperature in condenser/evaporator, which meets low-temperature level evaporating temperature, to be required, start low-temperature level part, low-temperature level refrigerant vapour
Enter condenser/evaporator 8 after the compression of the second compressor (i.e. cryogenic compressor) 9, refrigerant vapour changes in condenser/evaporator 8
Heat is condensed into refrigerant liquid, and refrigerant liquid enters in the second evaporator 10 through the 9th solenoid valve 22, third expansion valve 23 again
Heat absorption evaporation, forms refrigeration cycle.
It should be noted that, by opened water steam heat pump, recycling the condensation of cascade refrigeration unit for the utility model
Heat produces 80 DEG C~130 DEG C steam supply users and uses.Extraneous cooling water enters heat exchanger shell pass and tube side cascade refrigerating machine
Group temperature refrigerant vapor heat exchange after, into flash tank in negative pressure evaporation, the steam of generation is after heat pump compressor compresses
Taste is promoted, user's use is directly fed；After cooling water temperature, the condensation temperature of cascade refrigeration unit be can control 30
DEG C~40 DEG C, refrigeration COP can be improved.
In specific implementation, for the utility model using natural refrigerant water as opened water steam heat pump fluid, effectively recycling is multiple
The low-grade condenser heat of cascade refrigerator group improves refrigeration unit efficiency, and reaches the mesh of energy-saving and emission-reduction, heat recovery
's.
In conclusion compared with prior art, a kind of opened water steam heat pump provided by the utility model and overlapping system
The cold-heat combined system of cold group can effectively recycle the condensation heat of cascade refrigeration unit, to improve the work of refrigeration unit
Efficiency avoids the waste of thermal energy, is conducive to promote and apply, be of great practical significance.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit, which is characterized in that including open type vapor
Heat pump and cascade refrigeration unit；
Opened water steam heat pump is connected with cascade refrigeration unit；
The opened water steam heat pump, the condensation heat generated for recycling the cascade refrigeration unit.
2. opened water steam heat pump as described in claim 1 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that institute
Stating opened water steam heat pump includes: heat exchanger (1), flash tank (2), heat pump compressor (3), water jet pump (4) and circulating pump (5),
Wherein:
The heat pump fluid water out of heat exchanger (1) is connected with flash tank (2)；
The exhaust outlet of flash tank (2) is connected with exhaust valve (11)；
The steam (vapor) outlet of flash tank (2) is connected with the steam inlet of heat pump compressor (3)；
The liquid refrigerant outlet of flash tank (2) passes through circulating pump (5), the heat pump fluid of third solenoid valve (14) and heat exchanger (1)
Water inlet is connected；
The steam (vapor) outlet of heat pump compressor (3) is connected with the first solenoid valve (12).
3. opened water steam heat pump as claimed in claim 2 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that the
One solenoid valve (12) uses the place of steam for connecting outside need.
4. opened water steam heat pump as claimed in claim 2 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that heat
The working medium water inlet of pump compressor (3) is connected by water jet pump (4) with second solenoid valve (13).
5. opened water steam heat pump as claimed in claim 2 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that heat
The working medium water inlet of pump compressor (3) is also connected with the 4th solenoid valve (15).
6. feature exists if claims 1 or 2 is to the opened water steam heat pump and cascade refrigeration unit cold-heat combined system
In the cascade refrigeration unit includes: the first compressor (6), the first evaporator (7), condenser/evaporator (8), the second compressor
(9) and the second evaporator (10), in which:
The refrigerant vapour outlet of first compressor (6) is connected with the refrigerant inlet of heat exchanger (1)；
The refrigerant outlet of heat exchanger (1) is connected with the 5th solenoid valve (16) and the 7th solenoid valve (19) respectively；
5th solenoid valve (16) passes through the first expansion valve (17), the first evaporator (7), the 6th solenoid valve (18) and the first compressor
(6) air entry is connected；
7th solenoid valve (19) passes through the second expansion valve (20), condenser/evaporator (8), the 8th solenoid valve (21) and the first compressor
(6) air entry is connected；
The refrigerant outlet of second compressor (9) is connected with the refrigerant inlet of condenser/evaporator (8) by hollow pipeline；
The refrigerant outlet of condenser/evaporator (8) passes through the 9th solenoid valve (22), third expansion valve (23) and the second evaporator
(10) refrigerant inlet is connected；
The refrigerant outlet of second evaporator (10) is connected with the air entry of the second compressor (9).
7. opened water steam heat pump as claimed in claim 6 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that the
One compressor (6) is high pressure compressor；
Second compressor (9) is low pressure compressor.
8. opened water steam heat pump as claimed in claim 6 and the cold-heat combined system of cascade refrigeration unit, which is characterized in that the
One evaporator (7) is medium temperature evaporator；Second evaporator (10) is cryogenic vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187041.4U CN209672648U (en) | 2019-02-02 | 2019-02-02 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187041.4U CN209672648U (en) | 2019-02-02 | 2019-02-02 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
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| Publication Number | Publication Date |
|---|---|
| CN209672648U true CN209672648U (en) | 2019-11-22 |
Family
ID=68568446
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920187041.4U Expired - Fee Related CN209672648U (en) | 2019-02-02 | 2019-02-02 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
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| Country | Link |
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| CN (1) | CN209672648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724294A (en) * | 2019-02-02 | 2019-05-07 | 天津商业大学 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
-
2019
- 2019-02-02 CN CN201920187041.4U patent/CN209672648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724294A (en) * | 2019-02-02 | 2019-05-07 | 天津商业大学 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
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| 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: 20191122 Termination date: 20210202 |