CN109442804A - A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust - Google Patents
A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust Download PDFInfo
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- CN109442804A CN109442804A CN201811543463.7A CN201811543463A CN109442804A CN 109442804 A CN109442804 A CN 109442804A CN 201811543463 A CN201811543463 A CN 201811543463A CN 109442804 A CN109442804 A CN 109442804A
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- 238000009833 condensation Methods 0.000 title claims abstract description 58
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- 238000007906 compression Methods 0.000 title claims abstract description 53
- 230000006835 compression Effects 0.000 title claims abstract description 46
- 239000003507 refrigerant Substances 0.000 claims abstract description 666
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000004781 supercooling Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 abstract description 54
- 230000008020 evaporation Effects 0.000 abstract description 26
- 239000002918 waste heat Substances 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 18
- 238000001816 cooling Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 8
- 238000005086 pumping Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
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- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
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- 239000007924 injection Substances 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000009835 boiling Methods 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
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- 238000010025 steaming Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Central Heating Systems (AREA)
Abstract
A kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is related to a kind of heat pump circulating system.The present invention is that there are thermo-compression evaporation temperature and the coefficient of performance are relatively low when solving the problems, such as existing conventional heat pump for depth recycling steam exhaust waste heat.The present invention includes the first compressor, heat pump condenser, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor, the first heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, the second steam exhaust pipeline, third steam exhaust pipeline, the first refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line and the tenth refrigerant line.The present invention is used for the depth recuperation of heat of roller bed conveying line steam exhaust, and the coefficient of performance of heat pump is improved by step evaporation of water and step compression.
Description
Technical field
The present invention relates to a kind of heat pump circulating systems, and in particular to a kind of two-stage compression heat pump circulation of deep condensation steam exhaust
System.
Background technique
In needing the industrial production using evaporating and concentrating process, traditional multiple-effect evaporation technology is mostly used greatly, can be generated
A large amount of low-pressure secondary steam (steam exhaust), traditional multiple-effect evaporation technology take the cooling mode condensed to carry out steam exhaust processing mostly,
And without recuperation of heat, it will cause a large amount of energy waste.Take the steam compression heat pump technology using freon as refrigerant
The recuperation of heat for carrying out steam exhaust, is to have an extraordinary power-saving technology.The coefficient of performance and efficiency of heat pump and the evaporation temperature of heat pump
Spend closely related, evaporating temperature is higher, and performance coefficient of heat pump and efficiency are also higher.But the waste heat of steam exhaust by " latent heat of condensation " and
" temperature drop sensible heat " bipartition belongs to condensation phase change process when recycling steam exhaust " latent heat of condensation ", and the exothermic temperature of steam exhaust maintains
It is invariable, have the condition for ensureing that heat pump is run in higher evaporating temperature；After steam exhaust all condenses into liquid water, enter
Recycle steam exhaust " temperature drop sensible heat " stage；When recycling steam exhaust " temperature drop sensible heat ", belong to monophasic fluid exothermic process, steam exhaust condensed water
Exothermic temperature persistently reduce, the evaporating temperature of heat pump will be caused to follow reduction.For multiple-effect evaporation technology, steam exhaust condensation
The lower coolant-temperature gage the better, more can guarantee the vacuum degree of system；But steam exhaust condensing water temperature is lower, necessarily leads to thermo-compression evaporation temperature
Degree is also lower, and the coefficient of performance and efficiency of heat pump also decrease, and the energy saving of system is caused to be deteriorated.
As described above, carrying out the condensation recuperation of heat of low pressure steam exhaust using conventional heat pump unit, there are thermo-compression evaporation temperature is inclined
It is low, performance coefficient of heat pump and the relatively low problem of efficiency, it is desirable to provide a kind of more efficient heat pump circulating system construction and device.
Summary of the invention
The present invention exists to solve the condensation recuperation of heat that existing conventional heat pump is used for the end effect low pressure steam exhaust of multiple-effect evaporation
Thermo-compression evaporation temperature it is relatively low, performance coefficient of heat pump and efficiency are relatively low, the poor problem of energy saving, and then propose that a kind of depth is cold
The two-stage compression heat pump circulatory system of solidifying steam exhaust.
The technical solution adopted by the present invention to solve the above technical problem is:
Scheme one: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor,
One heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, the second steam exhaust pipeline, third steam exhaust pipeline, the first system
Refrigerant circuit, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line and the tenth system
Refrigerant circuit,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant line
Outlet end is connect with the input end of the input end of the 6th refrigerant line and the 7th refrigerant line respectively, the 6th refrigerant line
On be provided with the second throttle expansion valve, the outlet end of the 6th refrigerant line and the refrigerant inlet end of the first evaporator of heat pump connect
It connects, the refrigerant outlet end of evaporator with heat pump is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is arranged
There is third throttle expansion valve, the outlet end of the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, heat
The refrigerant outlet end for pumping the second evaporator is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with
The outlet end of second compressor, the 9th refrigerant line is connect with the middle part of the 8th refrigerant line, the 8th refrigerant line
Outlet end is connect with the primary air inlet end of the first compressor, the import of the outlet port of the first compressor and the tenth refrigerant line
End connection, the outlet end of the tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, the second outlet end of steam exhaust pipeline and putting for the second evaporator of heat pump
Hot input end connection, the heat release outlet end of the second evaporator of heat pump is connect with the input end of third steam exhaust pipeline.
Scheme two: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor, coagulates at the second throttle expansion valve
It is weary to bear water U-shaped curved, the first heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, the second steam exhaust pipeline, third
Vapor pipeline, the first refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant
Pipeline and the tenth refrigerant line,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant line
Outlet end is connect with the input end of the input end of the 6th refrigerant line and the 7th refrigerant line respectively, the 6th refrigerant line
On be provided with the second throttle expansion valve, the outlet end of the 6th refrigerant line and the refrigerant inlet end of the first evaporator of heat pump connect
It connects, the refrigerant outlet end of evaporator with heat pump is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is arranged
There is third throttle expansion valve, the outlet end of the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, heat
The refrigerant outlet end for pumping the second evaporator is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with
The outlet end of second compressor, the 9th refrigerant line is connect with the middle part of the 8th refrigerant line, the 8th refrigerant line
Outlet end is connect with the primary air inlet end of the first compressor, the import of the outlet port of the first compressor and the tenth refrigerant line
End connection, the outlet end of the tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, and it is U-shaped curved to be provided with condensed water on the second steam exhaust pipeline, the second steam exhaust
The outlet end of pipeline is connect with the heat release input end of the second evaporator of heat pump, the heat release outlet end of the second evaporator of heat pump and third
The input end of steam exhaust pipeline connects.
Scheme three: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor,
One heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, the second steam exhaust pipeline, third steam exhaust pipeline, the first system
Refrigerant circuit, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line and the tenth system
Refrigerant circuit,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant line
Outlet end is connect with the input end of the input end of the 6th refrigerant line and the 7th refrigerant line respectively, the 6th refrigerant line
On be provided with the second throttle expansion valve, the outlet end of the 6th refrigerant line and the refrigerant inlet end of the first evaporator of heat pump connect
It connects, the refrigerant outlet end of evaporator with heat pump is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is arranged
There is third throttle expansion valve, the outlet end of the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, heat
The refrigerant outlet end for pumping the second evaporator is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with
Second compressor, the outlet end of the 8th refrigerant line are connect with the primary air inlet end of the first compressor, the 9th refrigerant line
Outlet end connect with the intermediate fill gas mouth end of the first compressor, the outlet port of the first compressor and the tenth refrigerant line
Input end connection, the outlet end of the tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, the second outlet end of steam exhaust pipeline and putting for the second evaporator of heat pump
Hot input end connection, the heat release outlet end of the second evaporator of heat pump is connect with the input end of third steam exhaust pipeline.
Further, to be provided with condensed water on the second steam exhaust pipeline U-shaped curved.
Scheme four: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor,
One heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, the second steam exhaust pipeline, third steam exhaust pipeline, the first system
Refrigerant circuit, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line and the tenth system
Refrigerant circuit,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant pipe road
It is provided with the second throttle expansion valve, the outlet end of the first refrigerant line input end and the 7th with the 6th refrigerant line respectively
The input end of refrigerant line connects, and the outlet end of the 6th refrigerant line and the refrigerant inlet end of the first evaporator of heat pump connect
It connects, the refrigerant outlet end of evaporator with heat pump is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is arranged
There is third throttle expansion valve, the outlet end of the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, heat
The refrigerant outlet end for pumping the second evaporator is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with
The outlet end of second compressor, the 9th refrigerant line is connect with the middle part of the 8th refrigerant line, the 8th refrigerant line
Outlet end is connect with the primary air inlet end of the first compressor, the import of the outlet port of the first compressor and the tenth refrigerant line
End connection, the outlet end of the tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, the second outlet end of steam exhaust pipeline and putting for the second evaporator of heat pump
Hot input end connection, the heat release outlet end of the second evaporator of heat pump is connect with the input end of third steam exhaust pipeline.
Further, to be provided with condensed water on the second steam exhaust pipeline U-shaped curved.
Scheme five: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, crosses cold heat exchanger, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, heat at first throttle expansion valve
Pump the second evaporator, the second compressor, the first heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, second weary
Vapor pipeline, third steam exhaust pipeline, the first refrigerant line, second refrigerant pipeline, third refrigerant line, the 4th refrigerant pipe
Road, the 5th refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line
With the tenth refrigerant line,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant line
Outlet end is connect with the input end of the input end of second refrigerant pipeline and third refrigerant line respectively, second refrigerant pipeline
Outlet end connect with the first input end for crossing cold heat exchanger, cross the first exit end and the 4th refrigerant line of cold heat exchanger
Input end connection, third refrigerant pipe road are provided with first throttle expansion valve, the outlet end of third refrigerant line and supercooling
Second input end of heat exchanger connects, and the second outlet end for crossing cold heat exchanger is connect with the input end of the 5th refrigerant line, the
The outlet end of five refrigerant lines is connect with the intermediate fill gas mouth end of the first compressor, the outlet end difference of the 4th refrigerant line
It is connect with the input end of the input end of the 6th refrigerant line and the 7th refrigerant line, the 6th refrigerant pipe road is provided with the
The outlet end of two throttle expansion valves, the 6th refrigerant line is connect with the refrigerant inlet end of the first evaporator of heat pump, and heat pump steams
The refrigerant outlet end of hair device is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is provided with third throttling
The outlet end of expansion valve, the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, and heat pump second evaporates
The refrigerant outlet end of device is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with the second compression
The outlet end of machine, the 9th refrigerant line is connect with the middle part of the 8th refrigerant line, the outlet end of the 8th refrigerant line with
The primary air inlet end of first compressor connects, and the outlet port of the first compressor is connect with the input end of the tenth refrigerant line,
The outlet end of tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, the second outlet end of steam exhaust pipeline and putting for the second evaporator of heat pump
Hot input end connection, the heat release outlet end of the second evaporator of heat pump is connect with the input end of third steam exhaust pipeline.
Further, to be provided with condensed water on the second steam exhaust pipeline U-shaped curved.
Scheme six: a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust includes that the first compressor, heat pump condense
Device, crosses cold heat exchanger, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, heat at first throttle expansion valve
Pump the second evaporator, the second compressor, the first heat-carrying agent pipeline, the second heat-carrying agent pipeline, the first steam exhaust pipeline, second weary
Vapor pipeline, third steam exhaust pipeline, the first refrigerant line, second refrigerant pipeline, third refrigerant line, the 4th refrigerant pipe
Road, the 5th refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line
With the tenth refrigerant line,
The outlet end of first heat-carrying agent pipeline and the thermal medium inlet end of heat pump condenser connect, the heat of heat pump condenser
Media outlet end is connect with the input end of the second heat-carrying agent pipeline,
The input end of first refrigerant line and the refrigerant outlet end of heat pump condenser connect, the first refrigerant line
Outlet end is connect with the input end of the input end of second refrigerant pipeline and third refrigerant line respectively, second refrigerant pipeline
Outlet end connect with the first input end for crossing cold heat exchanger, cross the first exit end and the 4th refrigerant line of cold heat exchanger
Input end connection, the 4th refrigerant pipe road are provided with the second throttle expansion valve, and third refrigerant pipe road is provided with first segment
Expansion valve is flowed, the outlet end of third refrigerant line is connect with the second input end for crossing cold heat exchanger, crosses the second of cold heat exchanger
Outlet end is connect with the input end of the 5th refrigerant line, and the outlet end of the 5th refrigerant line and the intermediate of the first compressor are mended
Port end connection, the outlet end of the 4th refrigerant line respectively with the input end and the 7th refrigerant line of the 6th refrigerant line
Input end connection, the outlet end of the 6th refrigerant line connect with the refrigerant inlet end of the first evaporator of heat pump, heat pump steaming
The refrigerant outlet end of hair device is connect with the input end of the 8th refrigerant line, and the 7th refrigerant pipe road is provided with third throttling
The outlet end of expansion valve, the 7th refrigerant line is connect with the refrigerant inlet end of the second evaporator of heat pump, and heat pump second evaporates
The refrigerant outlet end of device is connect with the input end of the 9th refrigerant line, and the 9th refrigerant pipe road is provided with the second compression
The outlet end of machine, the 9th refrigerant line is connect with the middle part of the 8th refrigerant line, the outlet end of the 8th refrigerant line with
The primary air inlet end of first compressor connects, and the outlet port of the first compressor is connect with the input end of the tenth refrigerant line,
The outlet end of tenth refrigerant line and the refrigerant inlet end of heat pump condenser connect,
The outlet end of first steam exhaust pipeline is connect with the heat release input end of the first evaporator of heat pump, the first evaporator of heat pump
Heat release outlet end is connect with the input end of the second steam exhaust pipeline, the second outlet end of steam exhaust pipeline and putting for the second evaporator of heat pump
Hot input end connection, the heat release outlet end of the second evaporator of heat pump is connect with the input end of third steam exhaust pipeline.
Further, to be provided with condensed water on the second steam exhaust pipeline U-shaped curved.
The beneficial effects of the present invention over the prior art is:
1, the present invention realizes the step evaporation of water of refrigerant by the first evaporator of heat pump 6 and the second evaporator of heat pump 8, leads to
Crossing the first compressor 1 and the second compressor 9 realizes the step compression of refrigerant vapour, and avoiding all refrigerant vapours all needs
Depth-compression is carried out, is promoted by the step recycling of steam exhaust waste heat and the step of energy figure, finally realizes heat pump cycle
The raising of coefficient of performance.
2, the present invention has obstructed by setting condensed water U-shaped curved 10 and has failed to condense completely in the first evaporator of heat pump 6
Steam exhaust enters in the second evaporator of heat pump 8, avoids the refrigerant evaporation capacity of the second evaporator of heat pump 8 from sharply increasing, to avoid
The load of second compressor 9 sharply increases, and avoids system fluctuation of service.
3, the present invention has biggish design flexibility, can adapt to different steam exhaust condensed water coolings in a big way
Amplitude, when the cooling extent of steam exhaust condensed water is larger, the exhaust of the second compressor 9 can be generated with the first evaporator of heat pump 6
Refrigerant vapour mixing after, then from the primary air inlet of the first compressor 1 enter the first compressor 1；When the drop of steam exhaust condensed water
When warm amplitude is smaller, the exhaust of the second compressor 9 can be directly entered the first compressor from the intermediate fill gas mouth of the first compressor 1
1。
4, the present invention is for heat-carrying agent outlet temperature than steam exhaust condensation water outlet temperature is higher by many special process
It asks, the operation stability and the coefficient of performance of heat pump circulating system can be ensured using the embodiment of step throttling.
5, the present invention is absorbed heat by the way that cold heat exchanger 4 was arranged using the boiling of small part refrigerant, to realize exhausted big portion
Refrigerant is divided to obtain very big degree of supercooling, to improve the refrigerating capacity of unit refrigerant and improve the property of entire heat pump circulating system
Energy coefficient, general performance coefficient can be improved 10% or so.
Detailed description of the invention
Fig. 1 is the overall structure diagram of a specific embodiment of the invention one；
Fig. 2 is the overall structure diagram of a specific embodiment of the invention two；
Fig. 3 is the overall structure diagram of a specific embodiment of the invention three；
Fig. 4 is the overall structure diagram of a specific embodiment of the invention four；
Fig. 5 is the overall structure diagram of a specific embodiment of the invention five；
Fig. 6 is the overall structure diagram of a specific embodiment of the invention six；
Fig. 7 is the overall structure diagram of a specific embodiment of the invention seven；
Fig. 8 is the overall structure diagram of a specific embodiment of the invention eight；
Fig. 9 is the overall structure diagram of a specific embodiment of the invention nine；
Figure 10 is the overall structure diagram of a specific embodiment of the invention ten；
Wherein arrow direction indicates the direction of media flow.
Specific embodiment
Specific embodiment 1: embodiment is described with reference to Fig. 1, a kind of deep condensation steam exhaust described in present embodiment
The two-stage compression heat pump circulatory system includes the first compressor 1, heat pump condenser 2, the second throttle expansion valve 5, the evaporation of heat pump first
Device 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9, the first heat-carrying agent pipeline 31, the second heat-carrying are situated between
Matter pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust pipeline 35, the first refrigerant line the 41, the 6th system
Refrigerant circuit 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line 49 and the tenth refrigerant line
50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
The outlet end on road 41 is connect with the input end of the input end of the 6th refrigerant line 46 and the 7th refrigerant line 47 respectively, and the 6th
The second throttle expansion valve 5, the outlet end of the 6th refrigerant line 46 and the first evaporator of heat pump 6 are provided on refrigerant line 46
The connection of refrigerant inlet end, the refrigerant outlet end of evaporator with heat pump 6 connect with the input end of the 8th refrigerant line 48, the
Third throttle expansion valve 7 is provided on seven refrigerant lines 47, the outlet end of the 7th refrigerant line 47 and heat pump second evaporate
The refrigerant inlet end of device 8 connects, the refrigerant outlet end of the second evaporator of heat pump 8 and the input end of the 9th refrigerant line 49
It connects, the second compressor 9, the outlet end of the 9th refrigerant line 49 and the 8th refrigerant is provided on the 9th refrigerant line 49
The middle part of pipeline 48 connects, and the outlet end of the 8th refrigerant line 48 is connect with the primary air inlet end of the first compressor 1, the first pressure
The outlet port of contracting machine 1 is connect with the input end of the tenth refrigerant line 50, the outlet end of the tenth refrigerant line 50 and heat pump
The refrigerant inlet end of condenser 2 connects,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, the outlet end of the second steam exhaust pipeline 34 and heat pump second
The heat release input end of evaporator 8 connects, and the heat release outlet end of the second evaporator of heat pump 8 and the input end of third steam exhaust pipeline 35 connect
It connects.
The operation logic of present embodiment:
The exothermic process of steam exhaust: by taking saturation temperature is 60 DEG C of steam exhaust as an example, steam exhaust by the first steam exhaust pipeline 33 first into
Enter the first evaporator with heat pump 6 and carry out condensation heat, steam exhaust condensation is a phase transition process, and 60 DEG C of temperature maintenance is constant, hot at this time
The refrigerant evaporating temperature for pumping the first evaporator 6 is typically designed as 55 DEG C.After steam exhaust condenses into water, the second heat pump is gone successively to
Evaporator 8 carries out cooling heat release, this is a single-phase heat transfer process, and steam exhaust condensing water temperature persistently reduces, such as outlet temperature
25 DEG C are down to, the refrigerant evaporating temperature of the second evaporator of heat pump 8 is typically designed as 20 DEG C at this time.In the first evaporator of heat pump 6
In the second evaporator of heat pump 8, its whole latent heat of condensation and part temperature difference sensible heat have all been passed to the refrigeration of heat pump by steam exhaust
Agent realizes the recycling of steam exhaust waste heat.
The thermodynamic cycle process of refrigerant: the evaporating temperature of refrigerant reaches 55 DEG C in the first evaporator of heat pump 6, so producing
Raw refrigerant vapor pressure is relatively high.Since the evaporating temperature of refrigerant in the second evaporator of heat pump 8 only has 20 DEG C, so producing
Raw refrigerant vapor pressure is relatively low, and the second compressor 9 of setting carries out the refrigerant vapour that the second evaporator of heat pump 8 generates
Compression boosting, makes up to after the refrigerant vapor pressure of the generation of the first evaporator of heat pump 6, and two strands of refrigerant vapours converge,
Compression boosting is carried out into the first compressor 1, such as the compressed pressure at expulsion of the first compressor 1 can be increased to 90 DEG C of correspondences
Refrigerant saturation pressure, the exhaust of the first compressor 1 later enter heat pump condenser 2 carry out condensation heat (heat is discharged
To heat-carrying agent), and it is condensed into liquid refrigerant outflow heat pump condenser 2,
Liquid refrigerant by the first refrigerant line 41 flow out heat pump condenser 2 after is divided into two-way, wherein flow compared with
Big is evaporated by the 6th refrigerant line 46 by entering heat pump first after the cooling of 5 reducing pressure by regulating flow of the second throttle expansion valve all the way
Device 6, and in the first evaporator of heat pump 6 absorb steam exhaust the latent heat of condensation, be evaporated to gaseous state,
After the lesser another way of flow is cooled down by the 7th refrigerant line 47 by 7 reducing pressure by regulating flow of third throttle expansion valve
Into the second evaporator of heat pump 8, and in the second evaporator of heat pump 8 absorb steam exhaust condensed water sensible heat, be evaporated to gaseous state, later
Gaseous refrigerant enters the second compressor 9 and carries out compression boosting, reaches the refrigerant vapour pressure of the generation of the first evaporator of heat pump 6
Power, the refrigerant vapour that the exhaust of the second compressor 9 is generated with the first evaporator of heat pump 6 converge, enter back into the first compressor 1 into
Row compression boosting, so completes a complete refrigerant thermodynamic cycle process.
The endothermic process of heat-carrying agent: heat-carrying agent enters heat pump condenser 2 from the first heat-carrying agent pipeline 31, due to carrying
Heat medium temperature is more lower than the saturation temperature of the discharge refrigerant of the first compressor 1, such as heat-carrying agent inlet temperature is
80 DEG C, then heat-carrying agent heats the high pressure, high temperature refrigerant steam being discharged by the first compressor 1 in heat pump condenser 2,
General heat-carrying agent can be heated to 85 DEG C of outflows, and the heat for realizing that steam exhaust is recovered is transferred in heat-carrying agent, mention simultaneously
The high grade of heat.
The energy-efficient analysis of causes of the present invention:
Since multi-effect evaporation system needs very high vacuum degree guarantee, it is therefore desirable to which the temperature of steam exhaust condensed water is down to very
It is low, such as 25 DEG C.If using conventional heat pump cycle, it is necessary to design heat pump according to 25 DEG C of the outlet temperature of steam exhaust condensed water
Evaporating temperature, generally 20 DEG C；The condensation temperature of heat pump must be designed according to 85 DEG C of the outlet temperature of heat-carrying agent, generally
90 DEG C, the condensation temperature of heat pump differs up to 90-20=70 DEG C with evaporating temperature, according to refrigeration common sense, such heat pump system
The coefficient of performance be it is low-down, the coefficient of performance of theoretical calculation only has 2.8 or so, using such heat pump system carry out steam exhaust
The energy saving and economy of recuperation of heat hardly result in embodiment.
The uneconomic basic reason of conventional heat pump cycle is to cause evaporating temperature too low only with level-one evaporation, do not have
Saturation temperature higher and temperature-resistant advantage when making full use of steam exhaust phase transformation.By calculating it can be found that heat pump first evaporates
Device 6 assumes responsibility for the latent heat of condensation of the overwhelming majority in steam exhaust recuperation of heat, and unit mass steam exhaust is about 2360kJ/kg, and heat pump
Second evaporator 8 only assumes responsibility for the sensible heat of the smaller portions in steam exhaust recuperation of heat, and unit mass steam exhaust is about 4.18 × (60-
25)=146.3kJ/kg.That is the waste heat of steam exhaust is mostly to discharge under the conditions of higher 60 DEG C, the overwhelming majority
Refrigerant evaporating temperature should be arranged in 55 DEG C be only it is reasonable.Only the refrigerant of sub-fraction can be throttled by depth
Evaporating temperature is arranged at 20 DEG C, for recycling the steam exhaust condensed water sensible heat for only accounting for fraction afterwards.The refrigerant of this sub-fraction steams
Vapour can individually be compressed using the second compressor 9 of a smaller power, reach 55 DEG C of corresponding refrigerant saturation pressures
And then mixed with the refrigerant vapour of the overwhelming majority, enter the first compressor 1 together and is compressed.It can be found that the first pressure
The exhaust saturation temperature of contracting machine 1 and the difference of air-breathing saturation temperature only have 90-55=35 DEG C, and the exhaust of the second compressor 9 is saturated temperature
The difference of degree and air-breathing saturation temperature also only has 55-20=35 DEG C.It is compressed by step evaporation of water and step, realizes steam exhaust waste heat
Step is recycled and is promoted with the step of energy figure, is avoided all refrigerant vapours and is required to carry out depth-compression, thus real
The raising of the heat pump circulating system coefficient of performance is showed, practice have shown that the coefficient of performance of the invention may be up to 4.8 or more.
Steam exhaust in the present invention can be each effect low-pressure secondary steam of all kinds of evaporating and concentrating process, be also possible to steam system
Flash steam or secondary steam of system etc..Heat-carrying agent can be water, be also possible to heat medium oil, air etc. can be used for technique production or
The thermal medium of heat supply.The working medium such as freon class working medium or ammonia, alkanes can be used in refrigerant.
When the cooling extent of steam exhaust condensed water is larger, (general steam exhaust condenses water outlet temperature lower than steam exhaust saturation temperature 30
DEG C or more), it is suitble to use present embodiment.Because the cooling extent of steam exhaust condensed water is bigger, the evaporation of the second evaporator of heat pump 8
Difference between pressure and the evaporating pressure of the first evaporator of heat pump 6 is bigger, and the pressure at expulsion of the second compressor 9 may be up to not
Exhaust to the second vapor injection pressure of the first compressor 1, therefore the second compressor 9 can only be with the generation of the first evaporator of heat pump 6
Refrigerant vapour mixing after, then from the primary air inlet of the first compressor 1 enter the first compressor 1.
Specific embodiment 2: embodiment is described with reference to Fig. 2, a kind of deep condensation steam exhaust described in present embodiment
The two-stage compression heat pump circulatory system includes the first compressor 1, heat pump condenser 2, the second throttle expansion valve 5, the evaporation of heat pump first
U-shaped curved 10, the first heat-carrying agent pipe of device 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9, condensed water
Road 31, the second heat-carrying agent pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust pipeline 35, first freeze
Agent pipeline 41, the 6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line 49
With the tenth refrigerant line 50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
The outlet end on road 41 is connect with the input end of the input end of the 6th refrigerant line 46 and the 7th refrigerant line 47 respectively, and the 6th
The second throttle expansion valve 5, the outlet end of the 6th refrigerant line 46 and the first evaporator of heat pump 6 are provided on refrigerant line 46
The connection of refrigerant inlet end, the refrigerant outlet end of evaporator with heat pump 6 connect with the input end of the 8th refrigerant line 48, the
Third throttle expansion valve 7 is provided on seven refrigerant lines 47, the outlet end of the 7th refrigerant line 47 and heat pump second evaporate
The refrigerant inlet end of device 8 connects, the refrigerant outlet end of the second evaporator of heat pump 8 and the input end of the 9th refrigerant line 49
It connects, the second compressor 9, the outlet end of the 9th refrigerant line 49 and the 8th refrigerant is provided on the 9th refrigerant line 49
The middle part of pipeline 48 connects, and the outlet end of the 8th refrigerant line 48 is connect with the primary air inlet end of the first compressor 1, the first pressure
The outlet port of contracting machine 1 is connect with the input end of the tenth refrigerant line 50, the outlet end of the tenth refrigerant line 50 and heat pump
The refrigerant inlet end of condenser 2 connects,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, and it is U-shaped curved to be provided with condensed water on the second steam exhaust pipeline 34
10, the outlet end of the second steam exhaust pipeline 34 is connect with the heat release input end of the second evaporator of heat pump 8, the second evaporator of heat pump 8
Heat release outlet end is connect with the input end of third steam exhaust pipeline 35.
The operation logic of present embodiment: the difference of present embodiment and specific embodiment one is in the second steam exhaust pipe
Condensed water U-shaped curved 10 is additionally arranged on road 34, its purpose is to obstruct fail to condense completely in the first evaporator of heat pump 6 it is weary
Vapour enters in the second evaporator of heat pump 8, and the refrigerant evaporation capacity of the second evaporator of heat pump 8 is avoided to sharply increase, to avoid
The load of two compressors 9 sharply increases, and avoids system fluctuation of service.Other working principles such as system, the method for operation,
Applicable elements etc. are same as the specific embodiment one.
Specific embodiment 3: embodiment is described with reference to Fig. 3, a kind of deep condensation steam exhaust described in present embodiment
The two-stage compression heat pump circulatory system includes the first compressor 1, heat pump condenser 2, the second throttle expansion valve 5, the evaporation of heat pump first
Device 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9, the first heat-carrying agent pipeline 31, the second heat-carrying are situated between
Matter pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust pipeline 35, the first refrigerant line the 41, the 6th system
Refrigerant circuit 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line 49 and the tenth refrigerant line
50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
The outlet end on road 41 is connect with the input end of the input end of the 6th refrigerant line 46 and the 7th refrigerant line 47 respectively, and the 6th
The second throttle expansion valve 5, the outlet end of the 6th refrigerant line 46 and the first evaporator of heat pump 6 are provided on refrigerant line 46
The connection of refrigerant inlet end, the refrigerant outlet end of evaporator with heat pump 6 connect with the input end of the 8th refrigerant line 48, the
Third throttle expansion valve 7 is provided on seven refrigerant lines 47, the outlet end of the 7th refrigerant line 47 and heat pump second evaporate
The refrigerant inlet end of device 8 connects, the refrigerant outlet end of the second evaporator of heat pump 8 and the input end of the 9th refrigerant line 49
It connects, the second compressor 9, the outlet end of the 8th refrigerant line 48 and the first compressor is provided on the 9th refrigerant line 49
1 primary air inlet end connection, the outlet end of the 9th refrigerant line 49 are connect with the intermediate fill gas mouth end of the first compressor 1, the
The outlet port of one compressor 1 is connect with the input end of the tenth refrigerant line 50, the outlet end of the tenth refrigerant line 50 with
The refrigerant inlet end of heat pump condenser 2 connects,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, the outlet end of the second steam exhaust pipeline 34 and heat pump second
The heat release input end of evaporator 8 connects, and the heat release outlet end of the second evaporator of heat pump 8 and the input end of third steam exhaust pipeline 35 connect
It connects.
The operation logic of present embodiment: the difference of present embodiment and specific embodiment one is the second compressor 9
Exhaust directly from the intermediate fill gas mouth of the first compressor 1 enter the first compressor 1, no longer with the first evaporator of heat pump 6 generate
Refrigerant vapour mixing after from primary air inlet enter the first compressor 1.
When the cooling extent of steam exhaust condensed water is smaller, (general steam exhaust condenses water outlet temperature lower than steam exhaust saturation temperature 30
Within DEG C), it is suitble to use present embodiment.Because the cooling extent of steam exhaust condensed water is smaller, the evaporation of the second evaporator of heat pump 8
With regard to smaller, the pressure at expulsion of the second compressor 9 could possibly be higher than difference between pressure and the evaporating pressure of the first evaporator of heat pump 6
The evaporating pressure of the first evaporator of heat pump 6 is too many, therefore the exhaust of the second compressor 9 cannot be generated with the first evaporator of heat pump 6
Refrigerant vapour directly mix, can only from the intermediate fill gas mouth of the first compressor 1 enter the first compressor 1.
Working principle, the method for operation of other such as systems are same as the specific embodiment one.
Specific embodiment 4: embodiment is described with reference to Fig. 4, set on the second steam exhaust pipeline 34 described in present embodiment
It is equipped with condensed water U-shaped curved 10.The technical features not disclosed in this embodiment are the same as the specific implementation mode 3.
Specific embodiment 5: a kind of deep condensation steam exhaust described in embodiment is described with reference to Fig.5, present embodiment
The two-stage compression heat pump circulatory system includes the first compressor 1, heat pump condenser 2, the second throttle expansion valve 5, the evaporation of heat pump first
Device 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9, the first heat-carrying agent pipeline 31, the second heat-carrying are situated between
Matter pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust pipeline 35, the first refrigerant line the 41, the 6th system
Refrigerant circuit 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line 49 and the tenth refrigerant line
50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
Be provided with the second throttle expansion valve 5 on road 41, the outlet end of the first refrigerant line 41 respectively with the 6th refrigerant line 46
The connection of the input end of input end and the 7th refrigerant line 47, the outlet end of the 6th refrigerant line 46 and the first evaporator of heat pump
6 refrigerant inlet end connection, the refrigerant outlet end of evaporator with heat pump 6 are connect with the input end of the 8th refrigerant line 48,
Third throttle expansion valve 7 is provided on 7th refrigerant line 47, the outlet end of the 7th refrigerant line 47 and heat pump second steam
Send out the refrigerant inlet end connection of device 8, the refrigerant outlet end of the second evaporator of heat pump 8 and the import of the 9th refrigerant line 49
End connects, and the second compressor 9, the outlet end of the 9th refrigerant line 49 and the 8th refrigeration are provided on the 9th refrigerant line 49
The middle part of agent pipeline 48 connects, and the outlet end of the 8th refrigerant line 48 is connect with the primary air inlet end of the first compressor 1, and first
The outlet port of compressor 1 is connect with the input end of the tenth refrigerant line 50, the outlet end of the tenth refrigerant line 50 and heat
The refrigerant inlet end connection of condenser 2 is pumped,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, the outlet end of the second steam exhaust pipeline 34 and heat pump second
The heat release input end of evaporator 8 connects, and the heat release outlet end of the second evaporator of heat pump 8 and the input end of third steam exhaust pipeline 35 connect
It connects.
The operation logic of present embodiment: the difference of present embodiment and specific embodiment one is to enter heat pump second
The refrigerant of evaporator 8 successively passes through the second throttle expansion valve 5 and third throttle expansion valve 7 has carried out two-stage throttling, realizes
Step throttling.It, can using step throttling when requiring heat-carrying agent outlet temperature to be higher by many than steam exhaust condensation water outlet temperature
To ensure the operation stability and the coefficient of performance of heat pump circulating system.
Working principle, the method for operation of other such as systems are same as the specific embodiment one.
For present embodiment when the cooling extent of steam exhaust condensed water is smaller, the exhaust of the second compressor 9 can also be from first
The intermediate fill gas mouth of compressor 1 enters the first compressor 1.
Specific embodiment 6: being set on the second steam exhaust pipeline 34 described in embodiment is described with reference to Fig.6, present embodiment
It is equipped with condensed water U-shaped curved 10.The technical features not disclosed in this embodiment are identical as specific embodiment five.
Specific embodiment 7: a kind of deep condensation steam exhaust described in embodiment is described with reference to Fig.7, present embodiment
The two-stage compression heat pump circulatory system include the first compressor 1, heat pump condenser 2, first throttle expansion valve 3, cross cold heat exchanger 4,
Second throttle expansion valve 5, the first evaporator of heat pump 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9,
First heat-carrying agent pipeline 31, the second heat-carrying agent pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust
Pipeline 35, the first refrigerant line 41, second refrigerant pipeline 42, third refrigerant line 43, the 4th refrigerant line 44,
Five refrigerant lines 45, the 6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant
Pipeline 49 and the tenth refrigerant line 50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
The outlet end on road 41 is connect with the input end of the input end of second refrigerant pipeline 42 and third refrigerant line 43 respectively, and second
The outlet end of refrigerant line 42 connect with the first input end for crossing cold heat exchanger 4, crosses the first exit end and the of cold heat exchanger 4
The input end of four refrigerant lines 44 connects, and is provided with first throttle expansion valve 3, third refrigerant on third refrigerant line 43
The outlet end of pipeline 43 is connect with the second input end for crossing cold heat exchanger 4, crosses second outlet end and the 5th refrigeration of cold heat exchanger 4
The input end of agent pipeline 45 connects, and the outlet end of the 5th refrigerant line 45 is connect with the intermediate fill gas mouth end of the first compressor 1,
The outlet end of 4th refrigerant line 44 respectively with the input end of the 6th refrigerant line 46 and the 7th refrigerant line 47 into
Mouth end connects, and the second throttle expansion valve 5, the outlet end of the 6th refrigerant line 46 and heat are provided on the 6th refrigerant line 46
Pump the refrigerant inlet end connection of the first evaporator 6, refrigerant outlet end and the 8th refrigerant line 48 of evaporator with heat pump 6
Input end connection, is provided with third throttle expansion valve 7 on the 7th refrigerant line 47, the outlet end of the 7th refrigerant line 47 with
The refrigerant inlet end of the second evaporator of heat pump 8 connects, the refrigerant outlet end of the second evaporator of heat pump 8 and the 9th refrigerant pipe
The input end on road 49 connects, and is provided with the second compressor 9, the outlet end of the 9th refrigerant line 49 on the 9th refrigerant line 49
It is connect with the middle part of the 8th refrigerant line 48, the primary air inlet of the outlet end of the 8th refrigerant line 48 and the first compressor 1
End connection, the outlet port of the first compressor 1 are connect with the input end of the tenth refrigerant line 50, the tenth refrigerant line 50
Outlet end is connect with the refrigerant inlet end of heat pump condenser 2,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, the outlet end of the second steam exhaust pipeline 34 and heat pump second
The heat release input end of evaporator 8 connects, and the heat release outlet end of the second evaporator of heat pump 8 and the input end of third steam exhaust pipeline 35 connect
It connects.
The operation logic of present embodiment:
The exothermic process of steam exhaust: by taking saturation temperature is 60 DEG C of steam exhaust as an example, steam exhaust by the first steam exhaust pipeline 33 first into
Enter the first evaporator with heat pump 6 and carry out condensation heat, steam exhaust condensation is a phase transition process, and 60 DEG C of temperature maintenance is constant, hot at this time
The refrigerant evaporating temperature for pumping the first evaporator 6 is typically designed as 55 DEG C.After steam exhaust condenses into water, the second heat pump is gone successively to
Evaporator 8 carries out cooling heat release, this is a single-phase heat transfer process, and steam exhaust condensing water temperature persistently reduces, such as outlet temperature
25 DEG C are down to, the refrigerant evaporating temperature of the second evaporator of heat pump 8 is typically designed as 20 DEG C at this time.In the first evaporator of heat pump 6
In the second evaporator of heat pump 8, its whole latent heat of condensation and part temperature difference sensible heat have all been passed to the refrigeration of heat pump by steam exhaust
Agent realizes the recycling of waste heat.
The thermodynamic cycle process of refrigerant: the evaporating temperature of refrigerant reaches 55 DEG C in the first evaporator of heat pump 6, so producing
Raw refrigerant vapor pressure is relatively high.Since the evaporating temperature of refrigerant in the second evaporator of heat pump 8 only has 20 DEG C, so producing
Raw refrigerant vapor pressure is relatively low.The second compressor 9 is arranged to carry out the refrigerant vapour that the second evaporator of heat pump 8 generates
Compression boosting, makes up to after the refrigerant vapor pressure of the generation of the first evaporator of heat pump 6, and two strands of refrigerant vapours converge,
Compression boosting is carried out into the first compressor 1, such as the compressed pressure at expulsion of the first compressor 1 can be increased to 90 DEG C of correspondences
Refrigerant saturation pressure, the exhaust of the first compressor 1 later enter heat pump condenser 2 carry out condensation heat (heat is discharged
To heat-carrying agent), and it is condensed into liquid refrigerant outflow heat pump condenser 2,
Liquid refrigerant by the first refrigerant line 41 flow out heat pump condenser 2 after is divided into two-way, wherein flow compared with
Small entered cold heat exchanger 4 later by the cooling of 3 reducing pressure by regulating flow of first throttle expansion valve by third refrigerant line 43 all the way,
The biggish another way of flow was directly entered cold heat exchanger 4 by second refrigerant pipeline 42,
It is crossing in cold heat exchanger 4, the refrigerant of third refrigerant line 43 cools down due to the throttling of first throttle expansion valve 3
Temperature is lower than the refrigerant temperature of second refrigerant pipeline 42 after effect, passes through heat transfer, the refrigeration of third refrigerant line 43
Agent heat absorption is evaporated to gaseous state, and enters the first compressor 1 from the intermediate fill gas mouth of the first compressor 1 and compressed, the second refrigeration
The refrigerant of agent pipeline 42 obtains bigger degree of supercooling due to heat release, and entire heat pump cycle system can be improved in bigger degree of supercooling
The coefficient of performance of system, practice have shown that the coefficient of performance can be improved 10% or so, this is also the mesh that cold heat exchanger 4 was arranged in the present invention
's.
The refrigerant in the 4th refrigerant line 44 after being subcooled by cold heat exchanger 4 excessively is separated into two-way, wherein flowing
It measures biggish all the way by the 6th refrigerant line 46 by entering heat pump first after the cooling of 5 reducing pressure by regulating flow of the second throttle expansion valve
Evaporator 6, and in the first evaporator of heat pump 6 absorb steam exhaust the latent heat of condensation, be evaporated to gaseous state,
After the lesser another way of flow is cooled down by the 7th refrigerant line 47 by 7 reducing pressure by regulating flow of third throttle expansion valve
Into the second evaporator of heat pump 8, and in the second evaporator of heat pump 8 absorb steam exhaust condensed water sensible heat, be evaporated to gaseous state, later
Gaseous refrigerant enters the second compressor 9 and carries out compression boosting, reaches the refrigerant vapour pressure of the generation of the first evaporator of heat pump 6
Power, the refrigerant vapour that the exhaust of the second compressor 9 is generated with the first evaporator of heat pump 6 converge, enter back into the first compressor 1 into
Row compression boosting, so completes a complete refrigerant thermodynamic cycle process.
The endothermic process of heat-carrying agent: heat-carrying agent enters heat pump condenser 2 from the first heat-carrying agent pipeline 31, due to carrying
Heat medium temperature is more lower than the saturation temperature of the discharge refrigerant of the first compressor 1, such as heat-carrying agent inlet temperature is
80 DEG C, then heat-carrying agent heats the high pressure, high temperature refrigerant steam being discharged by the first compressor 1 in heat pump condenser 2,
General heat-carrying agent can be heated to 85 DEG C of outflows, and the heat for realizing that steam exhaust is recovered is transferred in heat-carrying agent, mention simultaneously
The high grade of heat.
The energy-efficient analysis of causes of the present invention:
Since multi-effect evaporation system needs very high vacuum degree guarantee, it is therefore desirable to which the temperature of steam exhaust condensed water is down to very
It is low, such as 25 DEG C.If using conventional heat pump cycle, it is necessary to design heat pump according to 25 DEG C of the outlet temperature of steam exhaust condensed water
Evaporating temperature, generally 20 DEG C；The condensation temperature of heat pump must be designed according to 85 DEG C of the outlet temperature of heat-carrying agent, generally
90 DEG C, the condensation temperature of heat pump differs up to 90-20=70 DEG C with evaporating temperature, according to refrigeration common sense, such heat pump system
The coefficient of performance be it is low-down, the coefficient of performance of theoretical calculation only has 2.8 or so, using such heat pump system carry out steam exhaust
The energy saving and economy of recuperation of heat hardly result in embodiment.
The uneconomic basic reason of conventional heat pump cycle is to cause evaporating temperature too low only with level-one evaporation, do not have
Saturation temperature higher and temperature-resistant advantage when making full use of steam exhaust phase transformation.By calculating it can be found that heat pump first evaporates
Device 6 assumes responsibility for the latent heat of condensation of the overwhelming majority in steam exhaust recuperation of heat, and unit mass steam exhaust is about 2360kJ/kg, and heat pump
Second evaporator 8 only assumes responsibility for the sensible heat of the smaller portions in steam exhaust recuperation of heat, and unit mass steam exhaust is about 4.18 × (60-
25)=146.3kJ/kg.That is the waste heat of steam exhaust is mostly to discharge under the conditions of higher 60 DEG C, the overwhelming majority
Refrigerant evaporating temperature should be arranged in 55 DEG C be only it is reasonable.Only the refrigerant of sub-fraction can be throttled by depth
Evaporating temperature is arranged at 20 DEG C, for recycling the steam exhaust condensed water sensible heat for only accounting for fraction afterwards.The refrigerant of this sub-fraction steams
Vapour can individually be compressed using the second compressor 9 of a smaller power, reach 55 DEG C of corresponding refrigerant saturation pressures
And then mixed with the refrigerant vapour of the overwhelming majority, enter the first compressor 1 together and is compressed.It can be found that the first pressure
The exhaust saturation temperature of contracting machine 1 and the difference of air-breathing saturation temperature only have 90-55=35 DEG C, and the exhaust of the second compressor 9 is saturated temperature
The difference of degree and air-breathing saturation temperature only has 55-20=35 DEG C.It is compressed by step evaporation of water and step, realizes the ladder of steam exhaust waste heat
Grade is recycled and is promoted with the step of energy figure, is avoided all refrigerant vapours and is required to carry out depth-compression, to realize
The raising of the heat pump circulating system coefficient of performance, practice have shown that the coefficient of performance of the invention may be up to 5.3 or so.
Steam exhaust in the present invention can be each effect low-pressure secondary steam of all kinds of evaporating and concentrating process, be also possible to steam system
Flash steam or secondary steam of system etc..Heat-carrying agent can be water, be also possible to heat medium oil, air etc. can be used for technique production or
The thermal medium of heat supply.The working medium such as freon class working medium or ammonia, alkanes can be used in refrigerant.
When the cooling extent of steam exhaust condensed water is larger, (general steam exhaust condenses water outlet temperature lower than steam exhaust saturation temperature 30
DEG C or more), it is suitble to use present embodiment.Because the cooling extent of steam exhaust condensed water is bigger, the evaporation of the second evaporator of heat pump 8
Difference between pressure and the evaporating pressure of the first evaporator of heat pump 6 is bigger, and the pressure at expulsion of the second compressor 9 may be up to not
Exhaust to the second vapor injection pressure of the first compressor 1, therefore the second compressor 9 can only be with the generation of the first evaporator of heat pump 6
Refrigerant vapour mixing after, then from the primary air inlet of the first compressor 1 enter the first compressor 1.
For present embodiment when the cooling extent of steam exhaust condensed water is smaller, the exhaust of the second compressor 9 can also be from first
The intermediate fill gas mouth of compressor 1 enters the first compressor 1.
Specific embodiment 8: being set on the second steam exhaust pipeline 34 described in embodiment is described with reference to Fig.8, present embodiment
It is equipped with condensed water U-shaped curved 10.The technical features not disclosed in this embodiment are identical as specific embodiment seven.
Specific embodiment 9: a kind of deep condensation steam exhaust described in embodiment is described with reference to Fig.9, present embodiment
The two-stage compression heat pump circulatory system include the first compressor 1, heat pump condenser 2, first throttle expansion valve 3, cross cold heat exchanger 4,
Second throttle expansion valve 5, the first evaporator of heat pump 6, third throttle expansion valve 7, heat pump the second evaporator 8, the second compressor 9,
First heat-carrying agent pipeline 31, the second heat-carrying agent pipeline 32, the first steam exhaust pipeline 33, the second steam exhaust pipeline 34, third steam exhaust
Pipeline 35, the first refrigerant line 41, second refrigerant pipeline 42, third refrigerant line 43, the 4th refrigerant line 44,
Five refrigerant lines 45, the 6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant
Pipeline 49 and the tenth refrigerant line 50,
The outlet end of first heat-carrying agent pipeline 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condenser 2
Thermal medium outlet end connect with the input end of the second heat-carrying agent pipeline 32,
The input end of first refrigerant line 41 is connect with the refrigerant outlet end of heat pump condenser 2, the first refrigerant pipe
The outlet end on road 41 is connect with the input end of the input end of second refrigerant pipeline 42 and third refrigerant line 43 respectively, and second
The outlet end of refrigerant line 42 connect with the first input end for crossing cold heat exchanger 4, crosses the first exit end and the of cold heat exchanger 4
The input end of four refrigerant lines 44 connects, and is provided with the second throttle expansion valve 5, third refrigerant on the 4th refrigerant line 44
First throttle expansion valve 3, the outlet end of third refrigerant line 43 and the second import for crossing cold heat exchanger 4 are provided on pipeline 43
End connection, the second outlet end for crossing cold heat exchanger 4 are connect with the input end of the 5th refrigerant line 45, the 5th refrigerant line 45
Outlet end connect with the intermediate fill gas mouth end of the first compressor 1, the outlet end of the 4th refrigerant line 44 respectively with the 6th system
The connection of the input end of the input end of refrigerant circuit 46 and the 7th refrigerant line 47, the outlet end of the 6th refrigerant line 46 and heat
Pump the refrigerant inlet end connection of the first evaporator 6, refrigerant outlet end and the 8th refrigerant line 48 of evaporator with heat pump 6
Input end connection, is provided with third throttle expansion valve 7 on the 7th refrigerant line 47, the outlet end of the 7th refrigerant line 47 with
The refrigerant inlet end of the second evaporator of heat pump 8 connects, the refrigerant outlet end of the second evaporator of heat pump 8 and the 9th refrigerant pipe
The input end on road 49 connects, and is provided with the second compressor 9, the outlet end of the 9th refrigerant line 49 on the 9th refrigerant line 49
It is connect with the middle part of the 8th refrigerant line 48, the primary air inlet of the outlet end of the 8th refrigerant line 48 and the first compressor 1
End connection, the outlet port of the first compressor 1 are connect with the input end of the tenth refrigerant line 50, the tenth refrigerant line 50
Outlet end is connect with the refrigerant inlet end of heat pump condenser 2,
The outlet end of first steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, and heat pump first evaporates
The heat release outlet end of device 6 is connect with the input end of the second steam exhaust pipeline 34, the outlet end of the second steam exhaust pipeline 34 and heat pump second
The heat release input end of evaporator 8 connects, and the heat release outlet end of the second evaporator of heat pump 8 and the input end of third steam exhaust pipeline 35 connect
It connects.
The operation logic of present embodiment: the difference of present embodiment and specific embodiment seven is to enter heat pump second
The refrigerant of evaporator 8 successively passes through the second throttle expansion valve 5 and third throttle expansion valve 7 has carried out two-stage throttling, realizes
Step throttling.It, can using step throttling when requiring heat-carrying agent outlet temperature to be higher by many than steam exhaust condensation water outlet temperature
To ensure the operation stability and the coefficient of performance of heat pump circulating system.
Working principle, the method for operation of other such as systems are identical as specific embodiment seven.
Specific embodiment 10: on the second steam exhaust pipeline 34 described in embodiment is described with reference to Fig.10, present embodiment
It is provided with condensed water U-shaped curved 10.The technical features not disclosed in this embodiment are identical as specific embodiment nine.
Each specific embodiment main body belongs to a total inventive concept in the present invention, technically interrelated, packet
Containing multiple same or similar specified features, therefore meet monistic requirement, is proposed as an application.
Claims (10)
1. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), the second throttle expansion valve (5), heat pump
First evaporator (6), third throttle expansion valve (7), the second evaporator of heat pump (8), the second compressor (9), the first heat-carrying agent
Pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline (33), the second steam exhaust pipeline (34), third steam exhaust pipeline
(35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line (47), the 8th refrigerant line
(48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
The outlet end on road (41) connects with the input end of the input end of the 6th refrigerant line (46) and the 7th refrigerant line (47) respectively
It connects, is provided with the second throttle expansion valve (5) on the 6th refrigerant line (46), the outlet end of the 6th refrigerant line (46) and heat
Pump the refrigerant inlet end connection of the first evaporator (6), the refrigerant outlet end of evaporator with heat pump (6) and the 8th refrigerant line
(48) input end connects, and is provided with third throttle expansion valve (7) on the 7th refrigerant line (47), the 7th refrigerant line
(47) outlet end is connect with the refrigerant inlet end of the second evaporator of heat pump (8), and the refrigerant of the second evaporator of heat pump (8) goes out
Mouth end is connect with the input end of the 9th refrigerant line (49), is provided with the second compressor (9) on the 9th refrigerant line (49),
The outlet end of 9th refrigerant line (49) is connect with the middle part of the 8th refrigerant line (48), the 8th refrigerant line (48)
Outlet end is connect with the primary air inlet end of the first compressor (1), the outlet port and the tenth refrigerant line of the first compressor (1)
(50) input end connection, the outlet end of the tenth refrigerant line (50) are connect with the refrigerant inlet end of heat pump condenser (2),
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), the outlet end of the second steam exhaust pipeline (34) and heat
Pump the heat release input end connection of the second evaporator (8), the heat release outlet end of the second evaporator of heat pump (8) and third steam exhaust pipeline
(35) input end connection.
2. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), the second throttle expansion valve (5), heat pump
First evaporator (6), third throttle expansion valve (7), the second evaporator of heat pump (8), the second compressor (9), condensed water are U-shaped curved
(10), the first heat-carrying agent pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline (33), the second steam exhaust pipeline
(34), third steam exhaust pipeline (35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line
(47), the 8th refrigerant line (48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
The outlet end on road (41) connects with the input end of the input end of the 6th refrigerant line (46) and the 7th refrigerant line (47) respectively
It connects, is provided with the second throttle expansion valve (5) on the 6th refrigerant line (46), the outlet end of the 6th refrigerant line (46) and heat
Pump the refrigerant inlet end connection of the first evaporator (6), the refrigerant outlet end of evaporator with heat pump (6) and the 8th refrigerant line
(48) input end connects, and is provided with third throttle expansion valve (7) on the 7th refrigerant line (47), the 7th refrigerant line
(47) outlet end is connect with the refrigerant inlet end of the second evaporator of heat pump (8), and the refrigerant of the second evaporator of heat pump (8) goes out
Mouth end is connect with the input end of the 9th refrigerant line (49), is provided with the second compressor (9) on the 9th refrigerant line (49),
The outlet end of 9th refrigerant line (49) is connect with the middle part of the 8th refrigerant line (48), the 8th refrigerant line (48)
Outlet end is connect with the primary air inlet end of the first compressor (1), the outlet port and the tenth refrigerant line of the first compressor (1)
(50) input end connection, the outlet end of the tenth refrigerant line (50) are connect with the refrigerant inlet end of heat pump condenser (2),
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), is provided with condensation on the second steam exhaust pipeline (34)
Water is U-shaped curved (10), and the outlet end of the second steam exhaust pipeline (34) is connect with the heat release input end of the second evaporator of heat pump (8), heat pump
The heat release outlet end of second evaporator (8) is connect with the input end of third steam exhaust pipeline (35).
3. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), the second throttle expansion valve (5), heat pump
First evaporator (6), third throttle expansion valve (7), the second evaporator of heat pump (8), the second compressor (9), the first heat-carrying agent
Pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline (33), the second steam exhaust pipeline (34), third steam exhaust pipeline
(35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line (47), the 8th refrigerant line
(48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
The outlet end on road (41) connects with the input end of the input end of the 6th refrigerant line (46) and the 7th refrigerant line (47) respectively
It connects, is provided with the second throttle expansion valve (5) on the 6th refrigerant line (46), the outlet end of the 6th refrigerant line (46) and heat
Pump the refrigerant inlet end connection of the first evaporator (6), the refrigerant outlet end of evaporator with heat pump (6) and the 8th refrigerant line
(48) input end connects, and is provided with third throttle expansion valve (7) on the 7th refrigerant line (47), the 7th refrigerant line
(47) outlet end is connect with the refrigerant inlet end of the second evaporator of heat pump (8), and the refrigerant of the second evaporator of heat pump (8) goes out
Mouth end is connect with the input end of the 9th refrigerant line (49), is provided with the second compressor (9) on the 9th refrigerant line (49),
The outlet end of 8th refrigerant line (48) is connect with the primary air inlet end of the first compressor (1), the 9th refrigerant line (49)
Outlet end connect with the intermediate fill gas mouth end of the first compressor (1), the outlet port and the tenth refrigerant of the first compressor (1)
The input end of pipeline (50) connects, the outlet end of the tenth refrigerant line (50) and the refrigerant inlet end of heat pump condenser (2)
Connection,
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), the outlet end of the second steam exhaust pipeline (34) and heat
Pump the heat release input end connection of the second evaporator (8), the heat release outlet end of the second evaporator of heat pump (8) and third steam exhaust pipeline
(35) input end connection.
4. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust according to claim 3, it is characterised in that: described
It is U-shaped curved (10) that condensed water is provided on second steam exhaust pipeline (34).
5. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), the second throttle expansion valve (5), heat pump
First evaporator (6), third throttle expansion valve (7), the second evaporator of heat pump (8), the second compressor (9), the first heat-carrying agent
Pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline (33), the second steam exhaust pipeline (34), third steam exhaust pipeline
(35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line (47), the 8th refrigerant line
(48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
Be provided on road (41) the second throttle expansion valve (5), the outlet end of the first refrigerant line (41) respectively with the 6th refrigerant pipe
The connection of the input end of the input end on road (46) and the 7th refrigerant line (47), the outlet end of the 6th refrigerant line (46) and heat
Pump the refrigerant inlet end connection of the first evaporator (6), the refrigerant outlet end of evaporator with heat pump (6) and the 8th refrigerant line
(48) input end connects, and is provided with third throttle expansion valve (7) on the 7th refrigerant line (47), the 7th refrigerant line
(47) outlet end is connect with the refrigerant inlet end of the second evaporator of heat pump (8), and the refrigerant of the second evaporator of heat pump (8) goes out
Mouth end is connect with the input end of the 9th refrigerant line (49), is provided with the second compressor (9) on the 9th refrigerant line (49),
The outlet end of 9th refrigerant line (49) is connect with the middle part of the 8th refrigerant line (48), the 8th refrigerant line (48)
Outlet end is connect with the primary air inlet end of the first compressor (1), the outlet port and the tenth refrigerant line of the first compressor (1)
(50) input end connection, the outlet end of the tenth refrigerant line (50) are connect with the refrigerant inlet end of heat pump condenser (2),
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), the outlet end of the second steam exhaust pipeline (34) and heat
Pump the heat release input end connection of the second evaporator (8), the heat release outlet end of the second evaporator of heat pump (8) and third steam exhaust pipeline
(35) input end connection.
6. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust according to claim 5, it is characterised in that: described
It is U-shaped curved (10) that condensed water is provided on second steam exhaust pipeline (34).
7. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), first throttle expansion valve (3), supercooling
Heat exchanger (4), the second throttle expansion valve (5), the first evaporator of heat pump (6), third throttle expansion valve (7), heat pump second evaporate
Device (8), the second compressor (9), the first heat-carrying agent pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline
(33), the second steam exhaust pipeline (34), third steam exhaust pipeline (35), the first refrigerant line (41), second refrigerant pipeline (42),
Third refrigerant line (43), the 4th refrigerant line (44), the 5th refrigerant line (45), the 6th refrigerant line (46),
7th refrigerant line (47), the 8th refrigerant line (48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
The outlet end on road (41) connects with the input end of the input end of second refrigerant pipeline (42) and third refrigerant line (43) respectively
It connects, the outlet end of second refrigerant pipeline (42) is connect with the first input end for crossing cold heat exchanger (4), crosses cold heat exchanger (4)
First exit end is connect with the input end of the 4th refrigerant line (44), and third refrigerant line is provided with first throttle on (43)
Expansion valve (3), the outlet end of third refrigerant line (43) are connect with the second input end for crossing cold heat exchanger (4), supercooling heat exchange
The second outlet end of device (4) is connect with the input end of the 5th refrigerant line (45), the outlet end of the 5th refrigerant line (45)
Connect with the intermediate fill gas mouth end of the first compressor (1), the outlet end of the 4th refrigerant line (44) respectively with the 6th refrigerant
The connection of the input end of the input end of pipeline (46) and the 7th refrigerant line (47) is provided with the on the 6th refrigerant line (46)
Two throttle expansion valves (5), the outlet end of the 6th refrigerant line (46) and the refrigerant inlet end of the first evaporator of heat pump (6) connect
It connects, the refrigerant outlet end of evaporator with heat pump (6) is connect with the input end of the 8th refrigerant line (48), the 7th refrigerant line
(47) it is provided on third throttle expansion valve (7), outlet end and the second evaporator of heat pump (8) of the 7th refrigerant line (47)
The connection of refrigerant inlet end, the input end at the refrigerant outlet end of the second evaporator of heat pump (8) and the 9th refrigerant line (49)
It connects, is provided with the second compressor (9) on the 9th refrigerant line (49), the outlet end and the 8th of the 9th refrigerant line (49)
The middle part of refrigerant line (48) connects, the outlet end of the 8th refrigerant line (48) and the primary air inlet of the first compressor (1)
End connection, the outlet port of the first compressor (1) are connect with the input end of the tenth refrigerant line (50), the tenth refrigerant line
(50) outlet end is connect with the refrigerant inlet end of heat pump condenser (2),
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), the outlet end of the second steam exhaust pipeline (34) and heat
Pump the heat release input end connection of the second evaporator (8), the heat release outlet end of the second evaporator of heat pump (8) and third steam exhaust pipeline
(35) input end connection.
8. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust according to claim 7, it is characterised in that: described
It is U-shaped curved (10) that condensed water is provided on second steam exhaust pipeline (34).
9. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust, it is characterised in that: a kind of deep condensation steam exhaust
The two-stage compression heat pump circulatory system include the first compressor (1), heat pump condenser (2), first throttle expansion valve (3), supercooling
Heat exchanger (4), the second throttle expansion valve (5), the first evaporator of heat pump (6), third throttle expansion valve (7), heat pump second evaporate
Device (8), the second compressor (9), the first heat-carrying agent pipeline (31), the second heat-carrying agent pipeline (32), the first steam exhaust pipeline
(33), the second steam exhaust pipeline (34), third steam exhaust pipeline (35), the first refrigerant line (41), second refrigerant pipeline (42),
Third refrigerant line (43), the 4th refrigerant line (44), the 5th refrigerant line (45), the 6th refrigerant line (46),
7th refrigerant line (47), the 8th refrigerant line (48), the 9th refrigerant line (49) and the tenth refrigerant line (50),
The outlet end of first heat-carrying agent pipeline (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condenser
(2) thermal medium outlet end is connect with the input end of the second heat-carrying agent pipeline (32),
The input end of first refrigerant line (41) is connect with the refrigerant outlet end of heat pump condenser (2), the first refrigerant pipe
The outlet end on road (41) connects with the input end of the input end of second refrigerant pipeline (42) and third refrigerant line (43) respectively
It connects, the outlet end of second refrigerant pipeline (42) is connect with the first input end for crossing cold heat exchanger (4), crosses cold heat exchanger (4)
First exit end is connect with the input end of the 4th refrigerant line (44), is provided with the second throttling on the 4th refrigerant line (44)
Expansion valve (5) is provided with first throttle expansion valve (3) on third refrigerant line (43), and third refrigerant line (43) goes out
Mouth end is connect with the second input end for crossing cold heat exchanger (4), crosses second outlet end and the 5th refrigerant line of cold heat exchanger (4)
(45) input end connection, the outlet end of the 5th refrigerant line (45) are connect with the intermediate fill gas mouth end of the first compressor (1),
The outlet end of 4th refrigerant line (44) input end and the 7th refrigerant line with the 6th refrigerant line (46) respectively
(47) input end connection, the outlet end of the 6th refrigerant line (46) and the refrigerant inlet end of the first evaporator of heat pump (6)
Connection, the refrigerant outlet end of evaporator with heat pump (6) are connect with the input end of the 8th refrigerant line (48), the 7th refrigerant pipe
It is provided on road (47) third throttle expansion valve (7), the outlet end of the 7th refrigerant line (47) and the second evaporator of heat pump (8)
Refrigerant inlet end connection, the import at the refrigerant outlet end of the second evaporator of heat pump (8) and the 9th refrigerant line (49)
End connection, is provided with the second compressor (9) on the 9th refrigerant line (49), the outlet end of the 9th refrigerant line (49) and the
The middle part of eight refrigerant lines (48) connects, the main air inlet of the outlet end and the first compressor (1) of the 8th refrigerant line (48)
The connection of mouth end, the outlet port of the first compressor (1) are connect with the input end of the tenth refrigerant line (50), the tenth refrigerant pipe
The outlet end on road (50) is connect with the refrigerant inlet end of heat pump condenser (2),
The outlet end of first steam exhaust pipeline (33) is connect with the heat release input end of the first evaporator of heat pump (6), and heat pump first evaporates
The heat release outlet end of device (6) is connect with the input end of the second steam exhaust pipeline (34), the outlet end of the second steam exhaust pipeline (34) and heat
Pump the heat release input end connection of the second evaporator (8), the heat release outlet end of the second evaporator of heat pump (8) and third steam exhaust pipeline
(35) input end connection.
10. a kind of two-stage compression heat pump circulatory system of deep condensation steam exhaust according to claim 9, it is characterised in that: institute
State that condensed water is provided on the second steam exhaust pipeline (34) is U-shaped curved (10).
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| CN201811543463.7A CN109442804B (en) | 2018-12-17 | 2018-12-17 | Double-stage compression heat pump circulation system for deep condensation of exhaust steam |
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| CN201811543463.7A CN109442804B (en) | 2018-12-17 | 2018-12-17 | Double-stage compression heat pump circulation system for deep condensation of exhaust steam |
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| CN109442804B (en) | 2024-01-30 |
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