CN109350983A - A kind of two-stage compression heat pump double-effect evaporation concentration systems - Google Patents
A kind of two-stage compression heat pump double-effect evaporation concentration systems Download PDFInfo
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- CN109350983A CN109350983A CN201811544907.9A CN201811544907A CN109350983A CN 109350983 A CN109350983 A CN 109350983A CN 201811544907 A CN201811544907 A CN 201811544907A CN 109350983 A CN109350983 A CN 109350983A
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- 238000001704 evaporation Methods 0.000 title claims abstract description 85
- 230000008020 evaporation Effects 0.000 title claims abstract description 71
- 238000007906 compression Methods 0.000 title claims abstract description 43
- 230000006835 compression Effects 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 357
- 230000000694 effects Effects 0.000 claims abstract description 327
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 156
- 239000007858 starting material Substances 0.000 claims abstract description 69
- 239000003507 refrigerant Substances 0.000 claims description 472
- 238000007599 discharging Methods 0.000 claims description 146
- 230000005494 condensation Effects 0.000 claims description 47
- 238000009833 condensation Methods 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 47
- 238000005086 pumping Methods 0.000 claims description 46
- 230000000740 bleeding effect Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 9
- 238000004781 supercooling Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 20
- 239000002918 waste heat Substances 0.000 abstract description 15
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 150000001413 amino acids Chemical class 0.000 abstract description 2
- 239000008267 milk Substances 0.000 abstract description 2
- 210000004080 milk Anatomy 0.000 abstract description 2
- 235000013336 milk Nutrition 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000003643 water by type Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of two-stage compression heat pump double-effect evaporation concentration systems, it is related to a kind of double-effect evaporation concentration cycles system.The present invention is that the existing conventional double-effect evaporation concentration systems energy consumption of solution is higher, the relatively low problem of vacuum degree.The present invention includes the first compressor, heat pump condenser, the first evaporator of heat pump, the second evaporator of heat pump, the second compressor, first intermediary's water circulation pipe, second intermediary's water circulation pipe, an effect evaporator, two effect evaporators, starter, condensate water collecting tank, first starts raw steam pipework, the one one effect juice vapor pipeline, two effect juice vapor pipelines, starting secondary steam pipeline, total condensate line, the 2nd 1 effect juice vapor pipeline and second and start raw steam pipework.Present invention can apply in the industrial evaporating and concentrating process such as pharmacy, milk powder, amino acid, environmentally friendly water process, the waste heat of two effect juice vapour of recycling realizes the purpose of production energy-saving.
Description
Technical field
The present invention relates to a kind of systems for carrying out double-effect evaporation concentration using heat pump techniques, and in particular to a kind of Two-stage Compression
Formula heat pump double-effect evaporation concentration systems.
Background technique
In the industrial evaporating and concentrating process such as pharmacy, milk powder, amino acid, environmentally friendly water process, many factories are used
Conventional double-effect evaporation concentration systems.Conventional double-effect evaporation concentration systems provide heat of the raw steam as an effect evaporation by boiler
Source condenses the juice vapour of two effects using cooling water by water-vapour condenser, by the waste heat removal system of two effect juice vapour.Pass through and is
The conservation of energy of uniting analysis and EQUILIBRIUM CALCULATION FOR PROCESS are easy discovery water-vapour condenser discharge waste heat no better than boiler and provide raw steam
Supply heat, that is to say, that the heat of raw steam is all wasted, and the energy consumption for causing double-effect evaporation system is higher, operation warp
Ji expense is higher.
In addition, heat-transfer effect and operation stability in order to ensure double-effect evaporation system, double-effect evaporation system needs higher
Vacuum degree.Only when two effect juice vapour condensed waters are cooled is down to lower temperature, double-effect evaporation system can maintain compared with
High vacuum degree, but conventional method generally use cooling tower provide cooling water, the temperature of cooling water it is higher and unstable (by
Weather influence), cause water-vapour condenser cooling effect bad, the outlet temperature of two effect juice vapour condensed waters is generally higher,
Generally at 40 DEG C or so, it is difficult to ensure that double-effect evaporation system maintains higher vacuum degree.
As described above, there are the waste heat of two effect juice vapour to be wasted for conventional double-effect evaporation concentration systems, does not recycle, make
Two effect juice vapour are caused to condense water outlet temperature at the higher problem of system energy consumption, and since natural cooling water water temperature is generally higher
Also universal higher, so that the vacuum degree of conventional double-effect evaporation concentration systems is difficult to maintain higher level, it is desirable to provide a kind of
Energy utilization efficiency is higher, the higher novel evaporation concentration system of system vacuum.
Summary of the invention
The present invention causes to solve the waste heat that existing conventional double-effect evaporation concentration systems do not recycle two effect juice vapour
System energy consumption is higher, and causes two effect juice vapour condensation water outlet temperature also universal since natural cooling water water temperature is generally higher
It is higher, so that the vacuum degree of conventional double-effect evaporation concentration systems is difficult to maintain the problem of higher level, and then propose one kind
Two-stage compression heat pump double-effect evaporation concentration systems and device.
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 double-effect evaporation concentration systems include the first compressor, heat pump condenser, the
Two throttle expansion valves, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor, the first intermediary
Water circulation pipe, second intermediary's water circulation pipe, first total steam exhaust pipeline, second total steam exhaust pipeline, the total steam exhaust pipeline of third,
One refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line, the tenth
Refrigerant line, two effect evaporators, vacuumizes control valve, vacuum pump, condensate water collecting tank, condensed water discharge at one effect evaporator
Pump, condensed water non-return valve, the first inlet valve, the second inlet valve, third inlet valve, the first outlet valve, the second outlet valve, third go out
Material valve, discharging pump, starter, raw steam control valve, raw steam condensation water valve, starting inlet valve, starting water pipe, first are opened
Dynamic life steam pipework, two effect juice vapor pipelines, starting secondary steam pipeline, total condensate line, is taken out very the one one effect juice vapor pipeline
Blank pipe road, condensate water discharge road, the first feeding pipe, the second feeding pipe, third feeding pipe, the first discharging pipeline, the
Two discharging pipelines, third discharging pipeline, the 2nd 1 effect juice vapor pipeline and second start raw steam pipework,
The outlet end of first intermediary's water circulation pipe and the thermal medium inlet end of heat pump condenser connect, heat pump condenser
Thermal medium outlet end is connect with the input end of second intermediary's water circulation pipe, the outlet end of second intermediary's water circulation pipe and an effect
The thermal medium inlet end of evaporator connects, the thermal medium outlet end of an effect evaporator and the input end of first intermediary's water circulation pipe
Connection,
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 input end of one one effect juice vapor pipeline is connect with the outlet port on an effect evaporator top, the one one effect juice steam pipe
The outlet end on road is connect with the thermal medium inlet end of two effect evaporators, the thermal medium outlet end of two effect evaporators and the 2nd 1 effect juice
The input end of vapor pipeline connects, and the input end of two effect juice vapor pipelines is connect with the outlet port on two effect evaporator tops, and first opens
The outlet end of dynamic raw steam pipework and the life steam inlet end of starter connect, the life steam (vapor) outlet end of starter and the second starting
The input end of raw steam pipework connects, and raw steam control valve is provided on the raw steam pipework of the first starting, and second starts raw steam
Raw steam condensation water valve is provided on pipeline, the outlet port of the input end and starter top that start secondary steam pipeline connects
It connects, the outlet end of the outlet end of the 2nd 1 effect juice vapor pipeline, the outlet end of two effect juice vapor pipelines and starting secondary steam pipeline is divided
It is not connect with first total steam exhaust pipeline input end, the outlet end of first total steam exhaust pipeline and the heat release import of the first evaporator of heat pump
End connection, the heat release outlet end of the first evaporator of heat pump are connect with the input end of second total steam exhaust pipeline,
The outlet end of second total steam exhaust pipeline and second start the outlet end of raw steam pipework respectively with the total steam exhaust pipe of third
The input end on road connects, and the outlet end of the total steam exhaust pipeline of third is connect with the heat release input end of the second evaporator of heat pump, heat pump the
The heat release outlet end of two evaporators is connect with the input end of total condensate line, and the outlet end of total condensate line and condensed water are received
Collect the inlet end connection of tank, the input end of vacuum-pumping pipeline connect with the bleeding point end on condensate water collecting tank top, vacuumizes
It is disposed on pipeline along flow direction of medium and vacuumizes control valve and vacuum pump, the outlet end emptying of vacuum-pumping pipeline is coagulated
The input end for bearing water discharge line is connect with the leakage fluid dram end of condensate water collecting tank lower part, and condensate water discharge road is along medium flow field
Dynamic direction is disposed with condensed water discharge pump and condensed water non-return valve, the outlet end discharge system on condensate water discharge road,
It is provided with starting inlet valve on starting water pipe, starts the outlet end of water pipe and the water inlet of starter lower part
The connection of mouth end,
Be provided with the first material inlet valve on first feeding pipe, the outlet end of the first feeding pipe respectively with the second feed pipe
The input end on road is connected with the input end of third feeding pipe, is provided with the second material inlet valve on the second feeding pipe, second into
The outlet end on expects pipe road is connect with the feed inlet end of an effect evaporator, and third material inlet valve is provided on third feeding pipe, the
The outlet end of three feeding pipes is connect with the feed inlet end of two effect evaporators,
The input end of first discharging pipeline is connect with the discharge port end of an effect evaporation pot bottom, and the first discharge nozzle road is arranged
There is the first outlet valve, the input end of the second discharging pipeline is connect with the discharge port end of two effect evaporation pot bottoms, the second discharging pipeline
On be provided with the second outlet valve, the outlet end of the outlet end of the first discharging pipeline and the second discharging pipeline respectively with third discharge nozzle
The input end on road connects, and third discharge nozzle road is disposed with third outlet valve and discharging pump, third along flow direction of medium
The outlet end discharge system of discharging pipeline.
Further, an effect condensate throttling device is provided on the 2nd 1 effect juice vapor pipeline.
Further, it is U-shaped curved that it is provided with the first condensed water on second total steam exhaust pipeline, is set on the raw steam pipework of the second starting
It is U-shaped curved to be equipped with the second condensed water.
Scheme two: a kind of two-stage compression heat pump double-effect evaporation concentration systems include the first compressor, heat pump condenser, the
Two throttle expansion valves, the first evaporator of heat pump, third throttle expansion valve, the second evaporator of heat pump, the second compressor, the first intermediary
Water circulation pipe, second intermediary's water circulation pipe, first total steam exhaust pipeline, second total steam exhaust pipeline, the total steam exhaust pipeline of third,
One refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant line, the tenth
Refrigerant line, two effect evaporators, vacuumizes control valve, vacuum pump, condensate water collecting tank, condensed water discharge at one effect evaporator
Pump, condensed water non-return valve, the first inlet valve, the second inlet valve, third inlet valve, the first outlet valve, the second outlet valve, third go out
Material valve, discharging pump, starter, raw steam control valve, raw steam condensation water valve, starting inlet valve, starting water pipe, first are opened
Dynamic life steam pipework, two effect juice vapor pipelines, starting secondary steam pipeline, total condensate line, is taken out very the one one effect juice vapor pipeline
Blank pipe road, condensate water discharge road, the first feeding pipe, the second feeding pipe, third feeding pipe, the first discharging pipeline, the
Two discharging pipelines, third discharging pipeline, the 2nd 1 effect juice vapor pipeline and second start raw steam pipework,
The outlet end of first intermediary's water circulation pipe and the thermal medium inlet end of heat pump condenser connect, heat pump condenser
Thermal medium outlet end is connect with the input end of second intermediary's water circulation pipe, the outlet end of second intermediary's water circulation pipe and an effect
The thermal medium inlet end of evaporator connects, the thermal medium outlet end of an effect evaporator and the input end of first intermediary's water circulation pipe
Connection,
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 input end of one one effect juice vapor pipeline is connect with the outlet port on an effect evaporator top, the one one effect juice steam pipe
The outlet end on road is connect with the thermal medium inlet end of two effect evaporators, the thermal medium outlet end of two effect evaporators and the 2nd 1 effect juice
The input end of vapor pipeline connects, and the input end of two effect juice vapor pipelines is connect with the outlet port on two effect evaporator tops, and first opens
The outlet end of dynamic raw steam pipework and the life steam inlet end of starter connect, the life steam (vapor) outlet end of starter and the second starting
The input end of raw steam pipework connects, and raw steam control valve is provided on the raw steam pipework of the first starting, and second starts raw steam
Raw steam condensation water valve is provided on pipeline, the outlet port of the input end and starter top that start secondary steam pipeline connects
It connects, the outlet end of the outlet end of the 2nd 1 effect juice vapor pipeline, the outlet end of two effect juice vapor pipelines and starting secondary steam pipeline is divided
It is not connect with first total steam exhaust pipeline input end, the outlet end of first total steam exhaust pipeline and the heat release import of the first evaporator of heat pump
End connection, the heat release outlet end of the first evaporator of heat pump are connect with the input end of second total steam exhaust pipeline,
The outlet end of second total steam exhaust pipeline and second start the outlet end of raw steam pipework respectively with the total steam exhaust pipe of third
The input end on road connects, and the outlet end of the total steam exhaust pipeline of third is connect with the heat release input end of the second evaporator of heat pump, heat pump the
The heat release outlet end of two evaporators is connect with the input end of total condensate line, and the outlet end of total condensate line and condensed water are received
Collect the inlet end connection of tank, the input end of vacuum-pumping pipeline connect with the bleeding point end on condensate water collecting tank top, vacuumizes
It is disposed on pipeline along flow direction of medium and vacuumizes control valve and vacuum pump, the outlet end emptying of vacuum-pumping pipeline is coagulated
The input end for bearing water discharge line is connect with the leakage fluid dram end of condensate water collecting tank lower part, and condensate water discharge road is along medium flow field
Dynamic direction is disposed with condensed water discharge pump and condensed water non-return valve, the outlet end discharge system on condensate water discharge road,
It is provided with starting inlet valve on starting water pipe, starts the outlet end of water pipe and the water inlet of starter lower part
The connection of mouth end,
Be provided with the first material inlet valve on first feeding pipe, the outlet end of the first feeding pipe respectively with the second feed pipe
The input end on road is connected with the input end of third feeding pipe, is provided with the second material inlet valve on the second feeding pipe, second into
The outlet end on expects pipe road is connect with the feed inlet end of an effect evaporator, and third material inlet valve is provided on third feeding pipe, the
The outlet end of three feeding pipes is connect with the feed inlet end of two effect evaporators,
The input end of first discharging pipeline is connect with the discharge port end of an effect evaporation pot bottom, and the first discharge nozzle road is arranged
There is the first outlet valve, the input end of the second discharging pipeline is connect with the discharge port end of two effect evaporation pot bottoms, the second discharging pipeline
On be provided with the second outlet valve, the outlet end of the outlet end of the first discharging pipeline and the second discharging pipeline respectively with third discharge nozzle
The input end on road connects, and third discharge nozzle road is disposed with third outlet valve and discharging pump, third along flow direction of medium
The outlet end discharge system of discharging pipeline.
Further, an effect condensate throttling device is provided on the 2nd 1 effect juice vapor pipeline.
Further, it is U-shaped curved that it is provided with the first condensed water on second total steam exhaust pipeline, is set on the raw steam pipework of the second starting
It is U-shaped curved to be equipped with the second condensed water.
Scheme three: a kind of two-stage compression heat pump double-effect evaporation concentration systems include the first compressor, heat pump condenser, the
One throttle expansion valve crosses cold heat exchanger, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, heat pump second
Evaporator, the second compressor, first intermediary's water circulation pipe, second intermediary's water circulation pipe, first total steam exhaust pipeline, second are always
The total steam exhaust pipeline of steam exhaust pipeline, third, the first refrigerant line, second refrigerant pipeline, third refrigerant line, the 4th refrigeration
Agent pipeline, the 5th refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant
Pipeline, an effect evaporator, two effect evaporators, vacuumizes control valve, vacuum pump, condensate water collecting tank, coagulates the tenth refrigerant line
Bear water discharge pump, condensed water non-return valve, the first inlet valve, the second inlet valve, third inlet valve, the first outlet valve, the second discharging
Valve, third outlet valve, discharging pump, starter, raw steam control valve, raw steam condensation water valve, starting inlet valve, starting water supply pipe
Road, first start raw steam pipework, the one one effect juice vapor pipeline, two effect juice vapor pipelines, starting secondary steam pipeline, total condensed water
Pipeline, vacuum-pumping pipeline, condensate water discharge road, the first feeding pipe, the second feeding pipe, third feeding pipe, first go out
Expects pipe road, the second discharging pipeline, third discharging pipeline, the 2nd 1 effect juice vapor pipeline and second start raw steam pipework,
The outlet end of first intermediary's water circulation pipe and the thermal medium inlet end of heat pump condenser connect, heat pump condenser
Thermal medium outlet end is connect with the input end of second intermediary's water circulation pipe, the outlet end of second intermediary's water circulation pipe and an effect
The thermal medium inlet end of evaporator connects, the thermal medium outlet end of an effect evaporator and the input end of first intermediary's water circulation pipe
Connection,
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 input end of one one effect juice vapor pipeline is connect with the outlet port on an effect evaporator top, the one one effect juice steam pipe
The outlet end on road is connect with the thermal medium inlet end of two effect evaporators, the thermal medium outlet end of two effect evaporators and the 2nd 1 effect juice
The input end of vapor pipeline connects, and the input end of two effect juice vapor pipelines is connect with the outlet port on two effect evaporator tops, and first opens
The outlet end of dynamic raw steam pipework and the life steam inlet end of starter connect, the life steam (vapor) outlet end of starter and the second starting
The input end of raw steam pipework connects, and raw steam control valve is provided on the raw steam pipework of the first starting, and second starts raw steam
Raw steam condensation water valve is provided on pipeline, the outlet port of the input end and starter top that start secondary steam pipeline connects
It connects, the outlet end of the outlet end of the 2nd 1 effect juice vapor pipeline, the outlet end of two effect juice vapor pipelines and starting secondary steam pipeline is divided
It is not connect with first total steam exhaust pipeline input end, the outlet end of first total steam exhaust pipeline and the heat release import of the first evaporator of heat pump
End connection, the heat release outlet end of the first evaporator of heat pump are connect with the input end of second total steam exhaust pipeline,
The outlet end of second total steam exhaust pipeline and second start the outlet end of raw steam pipework respectively with the total steam exhaust pipe of third
The input end on road connects, and the outlet end of the total steam exhaust pipeline of third is connect with the heat release input end of the second evaporator of heat pump, heat pump the
The heat release outlet end of two evaporators is connect with the input end of total condensate line, and the outlet end of total condensate line and condensed water are received
Collect the inlet end connection of tank, the input end of vacuum-pumping pipeline connect with the bleeding point end on condensate water collecting tank top, vacuumizes
It is disposed on pipeline along flow direction of medium and vacuumizes control valve and vacuum pump, the outlet end emptying of vacuum-pumping pipeline is coagulated
The input end for bearing water discharge line is connect with the leakage fluid dram end of condensate water collecting tank lower part, and condensate water discharge road is along medium flow field
Dynamic direction is disposed with condensed water discharge pump and condensed water non-return valve, the outlet end discharge system on condensate water discharge road,
It is provided with starting inlet valve on starting water pipe, starts the outlet end of water pipe and the water inlet of starter lower part
The connection of mouth end,
Be provided with the first material inlet valve on first feeding pipe, the outlet end of the first feeding pipe respectively with the second feed pipe
The input end on road is connected with the input end of third feeding pipe, is provided with the second material inlet valve on the second feeding pipe, second into
The outlet end on expects pipe road is connect with the feed inlet end of an effect evaporator, and third material inlet valve is provided on third feeding pipe, the
The outlet end of three feeding pipes is connect with the feed inlet end of two effect evaporators,
The input end of first discharging pipeline is connect with the discharge port end of an effect evaporation pot bottom, and the first discharge nozzle road is arranged
There is the first outlet valve, the input end of the second discharging pipeline is connect with the discharge port end of two effect evaporation pot bottoms, the second discharging pipeline
On be provided with the second outlet valve, the outlet end of the outlet end of the first discharging pipeline and the second discharging pipeline respectively with third discharge nozzle
The input end on road connects, and third discharge nozzle road is disposed with third outlet valve and discharging pump, third along flow direction of medium
The outlet end discharge system of discharging pipeline.
Further, an effect condensate throttling device is provided on the 2nd 1 effect juice vapor pipeline.
Further, it is U-shaped curved that it is provided with the first condensed water on second total steam exhaust pipeline, is set on the raw steam pipework of the second starting
It is U-shaped curved to be equipped with the second condensed water.
Scheme four: a kind of two-stage compression heat pump double-effect evaporation concentration systems include the first compressor, heat pump condenser, the
One throttle expansion valve crosses cold heat exchanger, the second throttle expansion valve, the first evaporator of heat pump, third throttle expansion valve, heat pump second
Evaporator, the second compressor, first intermediary's water circulation pipe, second intermediary's water circulation pipe, first total steam exhaust pipeline, second are always
The total steam exhaust pipeline of steam exhaust pipeline, third, the first refrigerant line, second refrigerant pipeline, third refrigerant line, the 4th refrigeration
Agent pipeline, the 5th refrigerant line, the 6th refrigerant line, the 7th refrigerant line, the 8th refrigerant line, the 9th refrigerant
Pipeline, an effect evaporator, two effect evaporators, vacuumizes control valve, vacuum pump, condensate water collecting tank, coagulates the tenth refrigerant line
Bear water discharge pump, condensed water non-return valve, the first inlet valve, the second inlet valve, third inlet valve, the first outlet valve, the second discharging
Valve, third outlet valve, discharging pump, starter, raw steam control valve, raw steam condensation water valve, starting inlet valve, starting water supply pipe
Road, first start raw steam pipework, the one one effect juice vapor pipeline, two effect juice vapor pipelines, starting secondary steam pipeline, total condensed water
Pipeline, vacuum-pumping pipeline, condensate water discharge road, the first feeding pipe, the second feeding pipe, third feeding pipe, first go out
Expects pipe road, the second discharging pipeline, third discharging pipeline, the 2nd 1 effect juice vapor pipeline and second start raw steam pipework,
The outlet end of first intermediary's water circulation pipe and the thermal medium inlet end of heat pump condenser connect, heat pump condenser
Thermal medium outlet end is connect with the input end of second intermediary's water circulation pipe, the outlet end of second intermediary's water circulation pipe and an effect
The thermal medium inlet end of evaporator connects, the thermal medium outlet end of an effect evaporator and the input end of first intermediary's water circulation pipe
Connection,
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 input end of one one effect juice vapor pipeline is connect with the outlet port on an effect evaporator top, the one one effect juice steam pipe
The outlet end on road is connect with the thermal medium inlet end of two effect evaporators, the thermal medium outlet end of two effect evaporators and the 2nd 1 effect juice
The input end of vapor pipeline connects, and the input end of two effect juice vapor pipelines is connect with the outlet port on two effect evaporator tops, and first opens
The outlet end of dynamic raw steam pipework and the life steam inlet end of starter connect, the life steam (vapor) outlet end of starter and the second starting
The input end of raw steam pipework connects, and raw steam control valve is provided on the raw steam pipework of the first starting, and second starts raw steam
Raw steam condensation water valve is provided on pipeline, the outlet port of the input end and starter top that start secondary steam pipeline connects
It connects, the outlet end of the outlet end of the 2nd 1 effect juice vapor pipeline, the outlet end of two effect juice vapor pipelines and starting secondary steam pipeline is divided
It is not connect with first total steam exhaust pipeline input end, the outlet end of first total steam exhaust pipeline and the heat release import of the first evaporator of heat pump
End connection, the heat release outlet end of the first evaporator of heat pump are connect with the input end of second total steam exhaust pipeline,
The outlet end of second total steam exhaust pipeline and second start the outlet end of raw steam pipework respectively with the total steam exhaust pipe of third
The input end on road connects, and the outlet end of the total steam exhaust pipeline of third is connect with the heat release input end of the second evaporator of heat pump, heat pump the
The heat release outlet end of two evaporators is connect with the input end of total condensate line, and the outlet end of total condensate line and condensed water are received
Collect the inlet end connection of tank, the input end of vacuum-pumping pipeline connect with the bleeding point end on condensate water collecting tank top, vacuumizes
It is disposed on pipeline along flow direction of medium and vacuumizes control valve and vacuum pump, the outlet end emptying of vacuum-pumping pipeline is coagulated
The input end for bearing water discharge line is connect with the leakage fluid dram end of condensate water collecting tank lower part, and condensate water discharge road is along medium flow field
Dynamic direction is disposed with condensed water discharge pump and condensed water non-return valve, the outlet end discharge system on condensate water discharge road,
It is provided with starting inlet valve on starting water pipe, starts the outlet end of water pipe and the water inlet of starter lower part
The connection of mouth end,
Be provided with the first material inlet valve on first feeding pipe, the outlet end of the first feeding pipe respectively with the second feed pipe
The input end on road is connected with the input end of third feeding pipe, is provided with the second material inlet valve on the second feeding pipe, second into
The outlet end on expects pipe road is connect with the feed inlet end of an effect evaporator, and third material inlet valve is provided on third feeding pipe, the
The outlet end of three feeding pipes is connect with the feed inlet end of two effect evaporators,
The input end of first discharging pipeline is connect with the discharge port end of an effect evaporation pot bottom, and the first discharge nozzle road is arranged
There is the first outlet valve, the input end of the second discharging pipeline is connect with the discharge port end of two effect evaporation pot bottoms, the second discharging pipeline
On be provided with the second outlet valve, the outlet end of the outlet end of the first discharging pipeline and the second discharging pipeline respectively with third discharge nozzle
The input end on road connects, and third discharge nozzle road is disposed with third outlet valve and discharging pump, third along flow direction of medium
The outlet end discharge system of discharging pipeline.
The beneficial effects of the present invention over the prior art is:
1, the present invention utilizes heat pump principle, consumes less electricity, realizes that recycle heat utilizes.It has fully phased out conventional double
The life steam consumption for imitating an effect evaporator in evaporation concentration system, saves the part energy, and eliminates conventional economic benefits and social benefits and steam
The cooling-water consumption for sending out concentration systems, saves water resource.
2, 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, practice have shown that the coefficient of performance may be up to 4.8~5.3.
3, depth has recycled the sensible heat waste heat of an effect, two effect juice vapour condensed waters, has recycled and has started the aobvious of raw steam condensate
Hot waste heat is utilized for cycling hot, reduces the heat waster of system to the greatest extent, while depth reduces the outlet temperature of condensed water
Degree, maintains vapo(u)rization system in high vacuum levels, and the vacuum degree of system may be up to -0.97bar.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the solution of the present invention one；
Fig. 2 is the overall structure diagram of the solution of the present invention two；
Fig. 3 is the overall structure diagram of the solution of the present invention three；
Fig. 4 is the overall structure diagram of the solution of the present invention four；
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 two-stage compression heat pump described in present embodiment
Double-effect evaporation concentration systems include the first compressor 1, heat pump condenser 2, the 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 intermediary's water circulation pipe 31, second intermediary's water follow
Endless tube road 32, first total steam exhaust pipeline 33, second total steam exhaust pipeline 34, the total steam exhaust pipeline 35 of third, the first refrigerant line 41,
6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line the 49, the tenth refrigeration
Agent pipeline 50, one imitates evaporator 61, two and imitates evaporator 62, vacuumize control valve 64, vacuum pump 65, condensate water collecting tank 66, coagulate
Bear water discharge pump 67, condensed water non-return valve 68, the first inlet valve 71, the second inlet valve 72, third inlet valve 73, the first outlet valve
74, the second outlet valve 75, third outlet valve 76, discharging pump 77, starter 81, raw steam control valve 82, raw steam condensation water valve
83, start inlet valve 84, starting water pipe 91, first starts the raw effect of steam pipework the 92, the 1st juice vapor pipeline 93, two and imitates juice
Vapor pipeline 94, starting secondary steam pipeline 95, total condensate line 96, vacuum-pumping pipeline 97, condensate water discharge road 98, first
Feeding pipe 99, the second feeding pipe 100, third feeding pipe 101, first pipeline 102, second that discharges discharge pipeline 103, the
Three discharging pipelines the 104, the 2nd 1 imitate juice vapor pipeline 105 and second and start raw steam pipework 106,
The outlet end of first intermediary's water circulation pipe 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condensation
The thermal medium outlet end of device 2 is connect with the input end of second intermediary's water circulation pipe 32, and second intermediary's water circulation pipe 32 goes out
Mouth end is connect with the thermal medium inlet end of an effect evaporator 61, and the thermal medium outlet end of an effect evaporator 61 is followed with first intermediary's water
The input end on endless tube road 31 connects,
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 input end of one one effect juice vapor pipeline 93 is connect with the outlet port on effect 61 top of evaporator, the one one effect juice
The outlet end of vapor pipeline 93 with two effect evaporators 62 thermal medium inlet end connect, two effect evaporators 62 thermal medium outlet end and
The input end connection of 2nd 1 effect juice vapor pipeline 105, the input end of two effect juice vapor pipelines 94 and two effect 62 tops of evaporator go out
The connection of port end, the first outlet end for starting raw steam pipework 92 are connect with the life steam inlet end of starter 81, starter 81
The life steam (vapor) outlet end input end that starts raw steam pipework 106 with second connect, the first starting is given birth to be arranged on steam pipework 92
There is raw steam control valve 82, is provided with raw steam condensation water valve 83 on the raw steam pipework 106 of the second starting, starts secondary steam pipe
The input end on road 95 is connect with the outlet port on 81 top of starter, the outlet end of the 2nd 1 effect juice vapor pipeline 105, two effect juice vapour
The outlet end of pipeline 94 and the outlet end for starting secondary steam pipeline 95 are connect with first total 33 input end of steam exhaust pipeline respectively, the
The outlet end of one total steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, the heat release of the first evaporator of heat pump 6
Outlet end is connect with the input end of second total steam exhaust pipeline 34,
The outlet end of second total steam exhaust pipeline 34 and the outlet end of the raw steam pipework 106 of the second starting are always weary with third respectively
The input end of vapor pipeline 35 connects, and the outlet end of the total steam exhaust pipeline 35 of third and the heat release input end of the second evaporator of heat pump 8 connect
It connects, the heat release outlet end of the second evaporator of heat pump 8 is connect with the input end of total condensate line 96, and total condensate line 96 goes out
Mouth end is connect with the inlet end of condensate water collecting tank 66, input end and 66 top of condensate water collecting tank of vacuum-pumping pipeline 97
Bleeding point end connects, and is disposed in vacuum-pumping pipeline 97 along flow direction of medium and vacuumizes control valve 64 and vacuum pump 65,
The outlet end of vacuum-pumping pipeline 97 empties, the input end on condensate water discharge road 98 and the leakage fluid dram of 66 lower part of condensate water collecting tank
End connects, and is disposed with condensed water discharge pump 67 and condensed water non-return valve along flow direction of medium on condensate water discharge road 98
68, the outlet end discharge system on condensate water discharge road 98,
Starting inlet valve 84 is provided on starting water pipe 91, under the outlet end and the starter 81 that start water pipe 91
The inlet end in portion connects,
It is provided with the first material inlet valve 71 on first feeding pipe 99, the outlet end of the first feeding pipe 99 is respectively with second
The input end of feeding pipe 100 is connected with the input end of third feeding pipe 101, is provided with second on the second feeding pipe 100
Material inlet valve 72, the outlet end of the second feeding pipe 100 are connect with the feed inlet end of an effect evaporator 61, third feeding pipe
Third material inlet valve 73 is provided on 101, the outlet end of third feeding pipe 101 and the feed inlet end of two effect evaporators 62 connect
It connects,
The input end of first discharging pipeline 102 is connect with the discharge port end of effect 61 bottom of evaporator, the first discharging pipeline
The first outlet valve 74, the discharge port end company of the input end of the second discharging pipeline 103 and two effect 62 bottoms of evaporator are provided on 102
It connects, the second outlet valve 75, the outlet end of the first discharging pipeline 102 and the second discharging pipeline is provided on the second discharging pipeline 103
103 outlet end is connect with the input end of third discharging pipeline 104 respectively, along flow direction of medium on third discharging pipeline 104
It is disposed with third outlet valve 76 and discharging pump 77, the outlet end discharge system of third discharging pipeline 104.
The operation logic of present embodiment:
Before system starting, system is closed with all of the external world and is connected to valve, including the first inlet valve 71, third outlet valve
76, start inlet valve 84, opening vacuumizes control valve 64, starts vacuum pump 65, take out to system from vacuum-pumping pipeline 97 true
Sky, when system vacuum is met the requirements, closing vacuumizes control valve 64, stops vacuum pump 65.
When system starts, the first inlet valve 71, the second inlet valve 72 and third inlet valve 73 are opened and adjusted, is steamed to an effect
It sends out tank 61 and two effect evaporators 62 injects material liquid.Open and adjust starting inlet valve 84, unboiled water from starting water pipe 91 into
Enter starter 81.Raw steam control valve 82 is opened, raw steam starts raw steam pipework 92 from first and enters system, and raw steam is adjusted
Valve 82 plays the adjustment effect of raw steam flow and pressure.In starter 81, unboiled water is given birth to steam heating, generates the two of low pressure
Secondary steam (such as its saturation temperature is 60 DEG C), enters heat pump by starting secondary steam pipeline 95 and first total steam exhaust pipeline 33
First evaporator 6.Here low-pressure secondary steam starter generated and an effect evaporator 61, two are imitated evaporator 62 and are generated
Secondary juice steam referred to as steam exhaust.
By taking saturation temperature is 60 DEG C of steam exhaust as an example, steam exhaust initially enters the first evaporator with heat pump 6 and carries out condensation heat, steam exhaust
Condensation is a phase transition process, and 60 DEG C of temperature maintenance is constant, and the refrigerant evaporating temperature of the first evaporator of heat pump 6 is generally set at this time
It is calculated as 55 DEG C.After steam exhaust condenses into water, converge with heat release condenses in starter 81 life steam condensate, continue into
Enter the second evaporator with heat pump 8 and carry out cooling heat release, this is a single-phase heat transfer process, and steam exhaust condensing water temperature persistently reduces, example
If outlet temperature is down to 25 DEG C, the refrigerant evaporating temperature of the second evaporator of heat pump 8 is typically designed as 20 DEG C at this time.In heat pump
In one evaporator 6 and the second evaporator of heat pump 8, steam exhaust is by the part temperature difference sensible heat of its whole latent heat of condensation and whole condensed waters
The refrigerant for all having passed to heat pump realizes the recycling of steam exhaust and condensed water 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
Give intermediary's water), and be condensed into after liquid refrigerant flows out heat pump condenser 2 by the first refrigerant line 41 and be divided into two-way,
Wherein flow is biggish all the way by the 6th refrigerant line 46 by entering heat after the cooling of 5 reducing pressure by regulating flow of the second throttle expansion valve
The first evaporator 6 is pumped, and absorbs the latent heat of condensation of steam exhaust in the first evaporator of heat pump 6, is 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, this is also an atypical both vapor compression
Formula heat pump cycle process.
Intermediary's water thermodynamic cycle process: being packaged with a certain amount of intermediary's water (pure water) in first intermediary's water circulation pipe 31,
Intermediary's water is heated and is boiled by the high temperature refrigerant that the first compressor 1 is discharged in heat pump condenser 2, generates the intermediary of higher temperatures
Vapor (such as 85 DEG C), then intermediary's water vapour enters an effect evaporator 61 by second intermediary's water circulation pipe 32 and heats it
In material liquid be allowed to boiling concentration, while intermediary's Water vapor condensation flows back to 2 weight of heat pump condenser by gravity at liquid
New heat absorption boiling, has so completed a complete intermediary water thermodynamic cycle process.
Double-effect evaporation concentration process: double-effect evaporation concentration process and the evaporating concentration process phase of conventional economic benefits and social benefits in the present invention
Seemingly, be summarized as follows: the material liquid in one effect evaporator 61 of intermediary's vapor heating is allowed to be concentrated by evaporation, such as boiling point is 75 DEG C,
Generate 75 DEG C of an effect juice vapour.One effect juice vapour enters two effect evaporators 62 by the one one effect juice vapor pipeline 93, and heats wherein
Material liquid be allowed to be concentrated by evaporation, such as boiling point be 60 DEG C, generate 60 DEG C two effect juice vapour, while one effect juice vapour be condensed into liquid
State.
After the material liquid in an effect evaporator 61 or two effect evaporators 62, which is evaporated concentration, reaches aimed concn, open
First outlet valve 74 or the second outlet valve 75 and third outlet valve 76, and discharging pump 77 is opened, concentrate up to standard is discharged
System.
After system progressivelyes reach normal operation and stablizes, raw steam control valve 82 can be closed, cuts off raw steam supply,
Close starting inlet valve 84, cutting unboiled water supply.After start completion, system of the invention and device be can be realized in the first pressure
Under the driving effect of contracting machine 1 and the second compressor 9, realizes that recycle heat utilizes, reach energy-efficient purpose.
The energy-efficient analysis of causes of the present invention:
The present invention can be realized energy conservation reason it is main there are two, be described below:
First, consuming less electricity using heat pump principle, realize that recycle heat utilizes.Without as conventional double-effect evaporation
Concentration systems are such, and two effect juice vapour are condensed using cooling water, but utilize condensation of the first evaporator of heat pump 6 to two effect juice vapour
Latent heat, an effect juice vapour condensed water part sensible heat recycled, using the second evaporator of heat pump 8 to the sensible heats of all condensed waters into
The recycling of row depth, and the first compressor 1 and the second compressor 9 are relied on, using steam compression heat pump principle, to the heat of recycling
Grade promotion is carried out, the higher intermediary's vapor of temperature is produced, for the heating of an effect evaporator 61, has been fully phased out conventional double
The life steam consumption for imitating an effect evaporator in evaporation concentration system, saves the part energy, and eliminates conventional economic benefits and social benefits and steam
The cooling-water consumption for sending out concentration systems, saves water resource.The present invention can achieve the electricity of consumption 50kWh i.e. in practice process
One ton of water energy consumption level extremely low in this way can be evaporated.
Second, consuming less electricity, higher vacuum degree is realized.Since multi-effect evaporation system needs very high vacuum
Degree ensures, it is therefore desirable to the temperature of steam exhaust condensed water is down to it is very low, such as 25 DEG C.If using conventional heat pump cycle, it is necessary to
Design the evaporating temperature of heat pump according to 25 DEG C of the outlet temperature of steam exhaust condensed water, generally 20 DEG C；It must be according to heat-carrying agent
85 DEG C of outlet temperature design the condensation temperature of heat pump, generally 90 DEG C, the condensation temperature of heat pump differs high with evaporating temperature
Up to 90-20=70 DEG C, according to refrigeration common sense, the coefficient of performance of such heat pump system is low-down, the performance of theoretical calculation
Coefficient only has 2.8 or so, carries out the energy saving of steam exhaust recuperation of heat using such heat pump system and economy hardly results 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.
Specific embodiment 2: embodiment is described with reference to Fig. 1, the 2nd 1 effect juice vapor pipeline described in present embodiment
An effect condensate throttling device 63 is provided on 105.The technical features not disclosed in this embodiment and specific embodiment one
It is identical.
In order to sufficiently recycle the waste heat of an effect juice vapour condensed water, the condensed water of an effect juice vapour and two effect juice vapour are converged
It is incorporated to the first evaporator of heat pump 6 and carries out recuperation of heat.Since the pressure of an effect evaporator 61 is higher than the pressure of two effect evaporators 62,
Therefore the one effect condensate throttling device 63 of setting on the 2nd 1 effect juice vapor pipeline 105, it is steamed with one effect evaporator 61 of control and two effects
Send out the pressure difference (while also controlling boiling-point difference between the two) between tank 62.
Specific embodiment 3: embodiment is described with reference to Fig. 1, on second total steam exhaust pipeline 34 described in present embodiment
It is provided with the first condensed water U-shaped curved 10, is provided with the second condensed water U-shaped curved 85 on the raw steam pipework 106 of the second starting.This implementation
Undocumented technical characteristic is the same as one or two specific embodiments in mode.
First condensed water U-shaped curved 10 and U-shaped curved 85 purpose of the second condensed water are set, are to obstruct and steamed in heat pump first
The life steam for failing the steam exhaust condensed completely in hair device 6 or failing to condense completely in starter 81 enters the evaporation of heat pump second
In device 8, the refrigerant evaporation capacity of the second evaporator of heat pump 8 is avoided to sharply increase, to avoid the load of the second compressor 9 sharply
Increase, avoids system fluctuation of service.
Specific embodiment 4: embodiment is described with reference to Fig. 2, a kind of two-stage compression heat pump described in present embodiment
Double-effect evaporation concentration systems include the first compressor 1, heat pump condenser 2, the 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 intermediary's water circulation pipe 31, second intermediary's water follow
Endless tube road 32, first total steam exhaust pipeline 33, second total steam exhaust pipeline 34, the total steam exhaust pipeline 35 of third, the first refrigerant line 41,
6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line 48, the 9th refrigerant line the 49, the tenth refrigeration
Agent pipeline 50, one imitates evaporator 61, two and imitates evaporator 62, vacuumize control valve 64, vacuum pump 65, condensate water collecting tank 66, coagulate
Bear water discharge pump 67, condensed water non-return valve 68, the first inlet valve 71, the second inlet valve 72, third inlet valve 73, the first outlet valve
74, the second outlet valve 75, third outlet valve 76, discharging pump 77, starter 81, raw steam control valve 82, raw steam condensation water valve
83, start inlet valve 84, starting water pipe 91, first starts the raw effect of steam pipework the 92, the 1st juice vapor pipeline 93, two and imitates juice
Vapor pipeline 94, starting secondary steam pipeline 95, total condensate line 96, vacuum-pumping pipeline 97, condensate water discharge road 98, first
Feeding pipe 99, the second feeding pipe 100, third feeding pipe 101, first pipeline 102, second that discharges discharge pipeline 103, the
Three discharging pipelines the 104, the 2nd 1 imitate juice vapor pipeline 105 and second and start raw steam pipework 106,
The outlet end of first intermediary's water circulation pipe 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condensation
The thermal medium outlet end of device 2 is connect with the input end of second intermediary's water circulation pipe 32, and second intermediary's water circulation pipe 32 goes out
Mouth end is connect with the thermal medium inlet end of an effect evaporator 61, and the thermal medium outlet end of an effect evaporator 61 is followed with first intermediary's water
The input end on endless tube road 31 connects,
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 input end of one one effect juice vapor pipeline 93 is connect with the outlet port on effect 61 top of evaporator, the one one effect juice
The outlet end of vapor pipeline 93 with two effect evaporators 62 thermal medium inlet end connect, two effect evaporators 62 thermal medium outlet end and
The input end connection of 2nd 1 effect juice vapor pipeline 105, the input end of two effect juice vapor pipelines 94 and two effect 62 tops of evaporator go out
The connection of port end, the first outlet end for starting raw steam pipework 92 are connect with the life steam inlet end of starter 81, starter 81
The life steam (vapor) outlet end input end that starts raw steam pipework 106 with second connect, the first starting is given birth to be arranged on steam pipework 92
There is raw steam control valve 82, is provided with raw steam condensation water valve 83 on the raw steam pipework 106 of the second starting, starts secondary steam pipe
The input end on road 95 is connect with the outlet port on 81 top of starter, the outlet end of the 2nd 1 effect juice vapor pipeline 105, two effect juice vapour
The outlet end of pipeline 94 and the outlet end for starting secondary steam pipeline 95 are connect with first total 33 input end of steam exhaust pipeline respectively, the
The outlet end of one total steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, the heat release of the first evaporator of heat pump 6
Outlet end is connect with the input end of second total steam exhaust pipeline 34,
The outlet end of second total steam exhaust pipeline 34 and the outlet end of the raw steam pipework 106 of the second starting are always weary with third respectively
The input end of vapor pipeline 35 connects, and the outlet end of the total steam exhaust pipeline 35 of third and the heat release input end of the second evaporator of heat pump 8 connect
It connects, the heat release outlet end of the second evaporator of heat pump 8 is connect with the input end of total condensate line 96, and total condensate line 96 goes out
Mouth end is connect with the inlet end of condensate water collecting tank 66, input end and 66 top of condensate water collecting tank of vacuum-pumping pipeline 97
Bleeding point end connects, and is disposed in vacuum-pumping pipeline 97 along flow direction of medium and vacuumizes control valve 64 and vacuum pump 65,
The outlet end of vacuum-pumping pipeline 97 empties, the input end on condensate water discharge road 98 and the leakage fluid dram of 66 lower part of condensate water collecting tank
End connects, and is disposed with condensed water discharge pump 67 and condensed water non-return valve along flow direction of medium on condensate water discharge road 98
68, the outlet end discharge system on condensate water discharge road 98,
Starting inlet valve 84 is provided on starting water pipe 91, under the outlet end and the starter 81 that start water pipe 91
The inlet end in portion connects,
It is provided with the first material inlet valve 71 on first feeding pipe 99, the outlet end of the first feeding pipe 99 is respectively with second
The input end of feeding pipe 100 is connected with the input end of third feeding pipe 101, is provided with second on the second feeding pipe 100
Material inlet valve 72, the outlet end of the second feeding pipe 100 are connect with the feed inlet end of an effect evaporator 61, third feeding pipe
Third material inlet valve 73 is provided on 101, the outlet end of third feeding pipe 101 and the feed inlet end of two effect evaporators 62 connect
It connects,
The input end of first discharging pipeline 102 is connect with the discharge port end of effect 61 bottom of evaporator, the first discharging pipeline
The first outlet valve 74, the discharge port end company of the input end of the second discharging pipeline 103 and two effect 62 bottoms of evaporator are provided on 102
It connects, the second outlet valve 75, the outlet end of the first discharging pipeline 102 and the second discharging pipeline is provided on the second discharging pipeline 103
103 outlet end is connect with the input end of third discharging pipeline 104 respectively, along flow direction of medium on third discharging pipeline 104
It is disposed with third outlet valve 76 and discharging pump 77, the outlet end discharge system of third discharging pipeline 104.
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 and the tool of other such as systems
Body embodiment one is identical.
Specific embodiment 5: embodiment is described with reference to Fig. 2, the 2nd 1 effect juice vapor pipeline described in present embodiment
An effect condensate throttling device 63 is provided on 105.The technical features not disclosed in this embodiment and specific embodiment four
It is identical.
In order to sufficiently recycle the waste heat of an effect juice vapour condensed water, the condensed water of an effect juice vapour and two effect juice vapour are converged
It is incorporated to the first evaporator of heat pump 6 and carries out recuperation of heat.Since the pressure of an effect evaporator 61 is higher than the pressure of two effect evaporators 62,
Therefore the one effect condensate throttling device 63 of setting on the 2nd 1 effect juice vapor pipeline 105, it is steamed with one effect evaporator 61 of control and two effects
Send out the pressure difference (while also controlling boiling-point difference between the two) between tank 62.
Specific embodiment 6: embodiment is described with reference to Fig. 2, on second total steam exhaust pipeline 34 described in present embodiment
It is provided with the first condensed water U-shaped curved 10, is provided with the second condensed water U-shaped curved 85 on the raw steam pipework 106 of the second starting.This implementation
Undocumented technical characteristic is identical as specific embodiment four or five in mode.
First condensed water U-shaped curved 10 and U-shaped curved 85 purpose of the second condensed water are set, are to obstruct and steamed in heat pump first
The life steam for failing the steam exhaust condensed completely in hair device 6 or failing to condense completely in starter 81 enters the evaporation of heat pump second
In device 8, the refrigerant evaporation capacity of the second evaporator of heat pump 8 is avoided to sharply increase, to avoid the load of the second compressor 9 sharply
Increase, avoids system fluctuation of service.
Specific embodiment 7: embodiment is described with reference to Fig. 3, a kind of two-stage compression heat pump described in present embodiment
Double-effect evaporation concentration systems 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
Intermediary's water circulation pipe 31, second intermediary's water circulation pipe 32, first total steam exhaust pipeline 33, second total steam exhaust pipeline 34, third
Total steam exhaust pipeline 35, the first refrigerant line 41, second refrigerant pipeline 42, third refrigerant line 43, the 4th refrigerant pipe
Road 44, the 5th refrigerant line 45, the 6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line the 48, the 9th
Refrigerant line 49, the tenth refrigerant line 50, one effect evaporator 61, two imitate evaporator 62, vacuumize control valve 64, vacuum pump
65, condensate water collecting tank 66, condensed water discharge pump 67, condensed water non-return valve 68, the first inlet valve 71, the second inlet valve 72,
Three inlet valves 73, the first outlet valve 74, the second outlet valve 75, third outlet valve 76, discharging pump 77, starter 81, raw steam tune
It saves valve 82, raw steam condensation water valve 83, starting inlet valve 84, starting water pipe 91, first and starts raw steam pipework 92, first
One effect juice vapor pipeline 93, two imitate juice vapor pipeline 94, starting secondary steam pipeline 95, total condensate line 96, vacuum-pumping pipeline 97,
Condensate water discharge road 98, the first feeding pipe 99, the second feeding pipe 100, the discharging pipeline of third feeding pipe 101, first
102, the second discharging pipeline 103, third discharging pipeline the 104, the 2nd 1 imitate juice vapor pipeline 105 and the raw steam pipework of the second starting
106,
The outlet end of first intermediary's water circulation pipe 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condensation
The thermal medium outlet end of device 2 is connect with the input end of second intermediary's water circulation pipe 32, and second intermediary's water circulation pipe 32 goes out
Mouth end is connect with the thermal medium inlet end of an effect evaporator 61, and the thermal medium outlet end of an effect evaporator 61 is followed with first intermediary's water
The input end on endless tube road 31 connects,
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 input end of one one effect juice vapor pipeline 93 is connect with the outlet port on effect 61 top of evaporator, the one one effect juice
The outlet end of vapor pipeline 93 with two effect evaporators 62 thermal medium inlet end connect, two effect evaporators 62 thermal medium outlet end and
The input end connection of 2nd 1 effect juice vapor pipeline 105, the input end of two effect juice vapor pipelines 94 and two effect 62 tops of evaporator go out
The connection of port end, the first outlet end for starting raw steam pipework 92 are connect with the life steam inlet end of starter 81, starter 81
The life steam (vapor) outlet end input end that starts raw steam pipework 106 with second connect, the first starting is given birth to be arranged on steam pipework 92
There is raw steam control valve 82, is provided with raw steam condensation water valve 83 on the raw steam pipework 106 of the second starting, starts secondary steam pipe
The input end on road 95 is connect with the outlet port on 81 top of starter, the outlet end of the 2nd 1 effect juice vapor pipeline 105, two effect juice vapour
The outlet end of pipeline 94 and the outlet end for starting secondary steam pipeline 95 are connect with first total 33 input end of steam exhaust pipeline respectively, the
The outlet end of one total steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, the heat release of the first evaporator of heat pump 6
Outlet end is connect with the input end of second total steam exhaust pipeline 34,
The outlet end of second total steam exhaust pipeline 34 and the outlet end of the raw steam pipework 106 of the second starting are always weary with third respectively
The input end of vapor pipeline 35 connects, and the outlet end of the total steam exhaust pipeline 35 of third and the heat release input end of the second evaporator of heat pump 8 connect
It connects, the heat release outlet end of the second evaporator of heat pump 8 is connect with the input end of total condensate line 96, and total condensate line 96 goes out
Mouth end is connect with the inlet end of condensate water collecting tank 66, input end and 66 top of condensate water collecting tank of vacuum-pumping pipeline 97
Bleeding point end connects, and is disposed in vacuum-pumping pipeline 97 along flow direction of medium and vacuumizes control valve 64 and vacuum pump 65,
The outlet end of vacuum-pumping pipeline 97 empties, the input end on condensate water discharge road 98 and the leakage fluid dram of 66 lower part of condensate water collecting tank
End connects, and is disposed with condensed water discharge pump 67 and condensed water non-return valve along flow direction of medium on condensate water discharge road 98
68, the outlet end discharge system on condensate water discharge road 98,
Starting inlet valve 84 is provided on starting water pipe 91, under the outlet end and the starter 81 that start water pipe 91
The inlet end in portion connects,
It is provided with the first material inlet valve 71 on first feeding pipe 99, the outlet end of the first feeding pipe 99 is respectively with second
The input end of feeding pipe 100 is connected with the input end of third feeding pipe 101, is provided with second on the second feeding pipe 100
Material inlet valve 72, the outlet end of the second feeding pipe 100 are connect with the feed inlet end of an effect evaporator 61, third feeding pipe
Third material inlet valve 73 is provided on 101, the outlet end of third feeding pipe 101 and the feed inlet end of two effect evaporators 62 connect
It connects,
The input end of first discharging pipeline 102 is connect with the discharge port end of effect 61 bottom of evaporator, the first discharging pipeline
The first outlet valve 74, the discharge port end company of the input end of the second discharging pipeline 103 and two effect 62 bottoms of evaporator are provided on 102
It connects, the second outlet valve 75, the outlet end of the first discharging pipeline 102 and the second discharging pipeline is provided on the second discharging pipeline 103
103 outlet end is connect with the input end of third discharging pipeline 104 respectively, along flow direction of medium on third discharging pipeline 104
It is disposed with third outlet valve 76 and discharging pump 77, the outlet end discharge system of third discharging pipeline 104.
The operation logic of present embodiment: the difference of present embodiment and specific embodiment one is, is additionally arranged first
Throttle expansion valve 3 and excessively cold heat exchanger 4 cause " thermodynamic cycle process of refrigerant " of the two different, make in present embodiment
The thermodynamic cycle process of cryogen is as follows:
The evaporating temperature of refrigerant reaches 55 DEG C in the first evaporator of heat pump 6, so the refrigerant vapor pressure ratio generated
It is higher.Since the evaporating temperature of refrigerant in the second evaporator of heat pump 8 only has 20 DEG C, so the refrigerant vapor pressure ratio generated
It is lower.The refrigerant vapour that second compressor 9 generates the second evaporator of heat pump 8 is set and carries out compression boosting, makes up to heat
After the refrigerant vapor pressure for pumping the generation of the first evaporator 6, two strands of refrigerant vapours converge, and carry out into the first compressor 1
Compression boosting, such as the compressed pressure at expulsion of the first compressor 1 can be increased to 90 DEG C of corresponding refrigerant saturation pressures, it
The exhaust of the first compressor 1 enters the progress of heat pump condenser 2 condensation heat (rejecting heat to heat-carrying agent) afterwards, and is condensed into
Liquid refrigerant flows out 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, this is also an atypical both vapor compression
Formula heat pump cycle process.
Working principle, the method for operation of other such as systems are same as the specific embodiment one.
Specific embodiment 8: embodiment is described with reference to Fig. 3, the 2nd 1 effect juice vapor pipeline described in present embodiment
An effect condensate throttling device 63 is provided on 105.The technical features not disclosed in this embodiment and specific embodiment seven
It is identical.
In order to sufficiently recycle the waste heat of an effect juice vapour condensed water, the condensed water of an effect juice vapour and two effect juice vapour are converged
It is incorporated to the first evaporator of heat pump 6 and carries out recuperation of heat.Since the pressure of an effect evaporator 61 is higher than the pressure of two effect evaporators 62,
Therefore the one effect condensate throttling device 63 of setting on the 2nd 1 effect juice vapor pipeline 105, it is steamed with one effect evaporator 61 of control and two effects
Send out the pressure difference (while also controlling boiling-point difference between the two) between tank 62.
Specific embodiment 9: embodiment is described with reference to Fig. 3, on second total steam exhaust pipeline 34 described in present embodiment
It is provided with the first condensed water U-shaped curved 10, is provided with the second condensed water U-shaped curved 85 on the raw steam pipework 106 of the second starting.This implementation
Undocumented technical characteristic is identical as specific embodiment seven or eight in mode.
First condensed water U-shaped curved 10 and U-shaped curved 85 purpose of the second condensed water are set, are to obstruct and steamed in heat pump first
The life steam for failing the steam exhaust condensed completely in hair device 6 or failing to condense completely in starter 81 enters the evaporation of heat pump second
In device 8, the refrigerant evaporation capacity of the second evaporator of heat pump 8 is avoided to sharply increase, to avoid the load of the second compressor 9 sharply
Increase, avoids system fluctuation of service.
Specific embodiment 10: embodiment is described with reference to Fig. 4, a kind of two-stage compression heat pump described in present embodiment
Double-effect evaporation concentration systems 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
Intermediary's water circulation pipe 31, second intermediary's water circulation pipe 32, first total steam exhaust pipeline 33, second total steam exhaust pipeline 34, third
Total steam exhaust pipeline 35, the first refrigerant line 41, second refrigerant pipeline 42, third refrigerant line 43, the 4th refrigerant pipe
Road 44, the 5th refrigerant line 45, the 6th refrigerant line 46, the 7th refrigerant line 47, the 8th refrigerant line the 48, the 9th
Refrigerant line 49, the tenth refrigerant line 50, one effect evaporator 61, two imitate evaporator 62, vacuumize control valve 64, vacuum pump
65, condensate water collecting tank 66, condensed water discharge pump 67, condensed water non-return valve 68, the first inlet valve 71, the second inlet valve 72,
Three inlet valves 73, the first outlet valve 74, the second outlet valve 75, third outlet valve 76, discharging pump 77, starter 81, raw steam tune
It saves valve 82, raw steam condensation water valve 83, starting inlet valve 84, starting water pipe 91, first and starts raw steam pipework 92, first
One effect juice vapor pipeline 93, two imitate juice vapor pipeline 94, starting secondary steam pipeline 95, total condensate line 96, vacuum-pumping pipeline 97,
Condensate water discharge road 98, the first feeding pipe 99, the second feeding pipe 100, the discharging pipeline of third feeding pipe 101, first
102, the second discharging pipeline 103, third discharging pipeline the 104, the 2nd 1 imitate juice vapor pipeline 105 and the raw steam pipework of the second starting
106,
The outlet end of first intermediary's water circulation pipe 31 is connect with the thermal medium inlet end of heat pump condenser 2, heat pump condensation
The thermal medium outlet end of device 2 is connect with the input end of second intermediary's water circulation pipe 32, and second intermediary's water circulation pipe 32 goes out
Mouth end is connect with the thermal medium inlet end of an effect evaporator 61, and the thermal medium outlet end of an effect evaporator 61 is followed with first intermediary's water
The input end on endless tube road 31 connects,
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 input end of one one effect juice vapor pipeline 93 is connect with the outlet port on effect 61 top of evaporator, the one one effect juice
The outlet end of vapor pipeline 93 with two effect evaporators 62 thermal medium inlet end connect, two effect evaporators 62 thermal medium outlet end and
The input end connection of 2nd 1 effect juice vapor pipeline 105, the input end of two effect juice vapor pipelines 94 and two effect 62 tops of evaporator go out
The connection of port end, the first outlet end for starting raw steam pipework 92 are connect with the life steam inlet end of starter 81, starter 81
The life steam (vapor) outlet end input end that starts raw steam pipework 106 with second connect, the first starting is given birth to be arranged on steam pipework 92
There is raw steam control valve 82, is provided with raw steam condensation water valve 83 on the raw steam pipework 106 of the second starting, starts secondary steam pipe
The input end on road 95 is connect with the outlet port on 81 top of starter, the outlet end of the 2nd 1 effect juice vapor pipeline 105, two effect juice vapour
The outlet end of pipeline 94 and the outlet end for starting secondary steam pipeline 95 are connect with first total 33 input end of steam exhaust pipeline respectively, the
The outlet end of one total steam exhaust pipeline 33 is connect with the heat release input end of the first evaporator of heat pump 6, the heat release of the first evaporator of heat pump 6
Outlet end is connect with the input end of second total steam exhaust pipeline 34,
The outlet end of second total steam exhaust pipeline 34 and the outlet end of the raw steam pipework 106 of the second starting are always weary with third respectively
The input end of vapor pipeline 35 connects, and the outlet end of the total steam exhaust pipeline 35 of third and the heat release input end of the second evaporator of heat pump 8 connect
It connects, the heat release outlet end of the second evaporator of heat pump 8 is connect with the input end of total condensate line 96, and total condensate line 96 goes out
Mouth end is connect with the inlet end of condensate water collecting tank 66, input end and 66 top of condensate water collecting tank of vacuum-pumping pipeline 97
Bleeding point end connects, and is disposed in vacuum-pumping pipeline 97 along flow direction of medium and vacuumizes control valve 64 and vacuum pump 65,
The outlet end of vacuum-pumping pipeline 97 empties, the input end on condensate water discharge road 98 and the leakage fluid dram of 66 lower part of condensate water collecting tank
End connects, and is disposed with condensed water discharge pump 67 and condensed water non-return valve along flow direction of medium on condensate water discharge road 98
68, the outlet end discharge system on condensate water discharge road 98,
Starting inlet valve 84 is provided on starting water pipe 91, under the outlet end and the starter 81 that start water pipe 91
The inlet end in portion connects,
It is provided with the first material inlet valve 71 on first feeding pipe 99, the outlet end of the first feeding pipe 99 is respectively with second
The input end of feeding pipe 100 is connected with the input end of third feeding pipe 101, is provided with second on the second feeding pipe 100
Material inlet valve 72, the outlet end of the second feeding pipe 100 are connect with the feed inlet end of an effect evaporator 61, third feeding pipe
Third material inlet valve 73 is provided on 101, the outlet end of third feeding pipe 101 and the feed inlet end of two effect evaporators 62 connect
It connects,
The input end of first discharging pipeline 102 is connect with the discharge port end of effect 61 bottom of evaporator, the first discharging pipeline
The first outlet valve 74, the discharge port end company of the input end of the second discharging pipeline 103 and two effect 62 bottoms of evaporator are provided on 102
It connects, the second outlet valve 75, the outlet end of the first discharging pipeline 102 and the second discharging pipeline is provided on the second discharging pipeline 103
103 outlet end is connect with the input end of third discharging pipeline 104 respectively, along flow direction of medium on third discharging pipeline 104
It is disposed with third outlet valve 76 and discharging pump 77, the outlet end discharge system of third discharging pipeline 104.
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.
In present embodiment an effect condensate throttling device 63 can also be provided on the 2nd 1 effect juice vapor pipeline 105.
In order to sufficiently recycle the waste heat of an effect juice vapour condensed water, the condensed water of an effect juice vapour and two effect juice vapour are converged and are incorporated to heat pump
First evaporator 6 carries out recuperation of heat.Since the pressure of an effect evaporator 61 is higher than the pressure of two effect evaporators 62, therefore second
One effect juice vapor pipeline 105 on setting one effect condensate throttling device 63, with control one effect evaporator 61 and two effect evaporators 62 it
Between pressure difference (while also controlling boiling-point difference between the two).
Present embodiment can also be provided with the first condensed water U-shaped curved 10, the second starting on second total steam exhaust pipeline 34
The second condensed water U-shaped curved 85 is provided on raw steam pipework 106.First condensed water U-shaped curved 10 is set and the second condensed water is U-shaped curved
85 purpose is to obstruct and fail the steam exhaust condensed completely in the first evaporator of heat pump 6 or fail in starter 81
The life steam condensed completely enters in the second evaporator of heat pump 8, and the refrigerant evaporation capacity of the second evaporator of heat pump 8 is avoided sharply to increase
Add, so that the load of the second compressor 9 be avoided to sharply increase, avoids system fluctuation of service.
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 double-effect evaporation concentration systems, it is characterised in that: a kind of two-stage compression heat pump is double
Imitating evaporation concentration 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), the second evaporator of heat pump (8), the second compressor (9), first intermediary's water circulation pipe
(31), second intermediary's water circulation pipe (32), first total steam exhaust pipeline (33), second total steam exhaust pipeline (34), the total steam exhaust of third
Pipeline (35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line (47), the 8th refrigerant
Pipeline (48), the 9th refrigerant line (49), the tenth refrigerant line (50), one effect evaporator (61), two effect evaporator (62),
Vacuumize control valve (64), vacuum pump (65), condensate water collecting tank (66), condensed water discharge pump (67), condensed water non-return valve
(68), the first inlet valve (71), the second inlet valve (72), third inlet valve (73), the first outlet valve (74), the second outlet valve
(75), third outlet valve (76), discharging pump (77), starter (81), raw steam control valve (82), raw steam condensation water valve
(83), start inlet valve (84), starting water pipe (91), the first starting raw steam pipework (92), the one one effect juice vapor pipeline
(93), two juice vapor pipeline (94) is imitated, starting secondary steam pipeline (95), total condensate line (96), vacuum-pumping pipeline (97), are coagulated
It bears water discharge line (98), the first feeding pipe (99), the second feeding pipe (100), third feeding pipe (101), first go out
Expects pipe road (102), the second discharging pipeline (103), third discharging pipeline (104), the 2nd 1 effect juice vapor pipeline (105) and second open
Dynamic raw steam pipework (106),
The outlet end of first intermediary's water circulation pipe (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condensation
The thermal medium outlet end of device (2) is connect with the input end of second intermediary's water circulation pipe (32), second intermediary's water circulation pipe
(32) outlet end with one effect evaporator (61) thermal medium inlet end connect, one effect evaporator (61) thermal medium outlet end and
The input end of first intermediary's water circulation pipe (31) connects,
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 input end of one one effect juice vapor pipeline (93) is connect with the outlet port on effect evaporator (61) top, the one one effect juice
The outlet end of vapor pipeline (93) is connect with the thermal medium inlet end of two effects evaporator (62), and the thermal medium of two effects evaporator (62) goes out
Mouth end is connect with the input end of the 2nd 1 effect juice vapor pipeline (105), the input end of two effects juice vapor pipeline (94) and two effect evaporators
(62) the outlet port connection on top, first starts the life steam inlet of the outlet end of raw steam pipework (92) and starter (81)
End connection, the input end that the life steam (vapor) outlet end of starter (81) starts raw steam pipework (106) with second are connect, the first starting
It is provided with raw steam control valve (82) on raw steam pipework (92), is provided with raw steam in the second starting raw steam pipework (106)
The input end of condensate valve (83), starting secondary steam pipeline (95) is connect with the outlet port on starter (81) top, and second
The outlet end of one effect juice vapor pipeline (105), the outlet end of two effects juice vapor pipeline (94) and going out for starting secondary steam pipeline (95)
Mouth end is connect with first total steam exhaust pipeline (33) input end respectively, and the outlet end of first total steam exhaust pipeline (33) and heat pump first steam
Send out the heat release input end connection of device (6), the heat release outlet end of the first evaporator of heat pump (6) and second total steam exhaust pipeline (34) into
The connection of mouth end,
The outlet end of second total steam exhaust pipeline (34) and the outlet end of the second starting raw steam pipework (106) are always weary with third respectively
The input end of vapor pipeline (35) connects, the heat release of the outlet end of the total steam exhaust pipeline (35) of third and the second evaporator of heat pump (8) into
The connection of mouth end, the heat release outlet end of the second evaporator of heat pump (8) are connect with the input end of total condensate line (96), total condensed water
The outlet end of pipeline (96) is connect with the inlet end of condensate water collecting tank (66), the input end of vacuum-pumping pipeline (97) and condensation
The bleeding point end on water collecting tank (66) top connects, and is disposed with and vacuumizes along flow direction of medium in vacuum-pumping pipeline (97)
Control valve (64) and vacuum pump (65), the outlet end emptying of vacuum-pumping pipeline (97), the input end of condensate water discharge road (98)
It connect with the leakage fluid dram end of condensate water collecting tank (66) lower part, is successively set on condensate water discharge road (98) along flow direction of medium
It is equipped with condensed water discharge pump (67) and condensed water non-return valve (68), the outlet end discharge system of condensate water discharge road (98),
It is provided with starting inlet valve (84) in starting water pipe (91), starts outlet end and the starter of water pipe (91)
(81) the inlet end connection of lower part,
It is provided on first feeding pipe (99) the first material inlet valve (71), the outlet end of the first feeding pipe (99) is respectively with
The input end of two feeding pipes (100) is connected with the input end of third feeding pipe (101), and the second feeding pipe is set on (100)
It being equipped with the second material inlet valve (72), the outlet end of the second feeding pipe (100) is connect with the feed inlet end of effect evaporator (61),
It is provided on third feeding pipe (101) third material inlet valve (73), the outlet end of third feeding pipe (101) is evaporated with two effects
The feed inlet end of tank (62) connects,
The input end of first discharging pipeline (102) is connect with the discharge port end of effect evaporator (61) bottom, the first discharging pipeline
(102) it is provided on the first outlet valve (74), the input end of the second discharging pipeline (103) and two imitates going out for evaporator (62) bottoms
Material mouth end connects, and is provided with the second outlet valve (75) in the second discharging pipeline (103), the outlet end of the first discharging pipeline (102)
It is connect respectively with the input end of third discharging pipeline (104) with the outlet end of the second discharging pipeline (103), third discharging pipeline
(104) it is disposed with third outlet valve (76) and discharging pump (77) along flow direction of medium on, third discharges pipeline (104)
Outlet end discharge system.
2. a kind of two-stage compression heat pump double-effect evaporation concentration systems according to claim 1, it is characterised in that: described second
An effect condensate throttling device (63) is provided in one effect juice vapor pipeline (105).
3. a kind of two-stage compression heat pump double-effect evaporation concentration systems according to claim 1 or claim 2, it is characterised in that: described
It is U-shaped curved (10) that it is provided with the first condensed water on second total steam exhaust pipeline (34), is provided in the second starting raw steam pipework (106)
Second condensed water is U-shaped curved (85).
4. a kind of two-stage compression heat pump double-effect evaporation concentration systems, it is characterised in that: a kind of two-stage compression heat pump is double
Imitating evaporation concentration 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), the second evaporator of heat pump (8), the second compressor (9), first intermediary's water circulation pipe
(31), second intermediary's water circulation pipe (32), first total steam exhaust pipeline (33), second total steam exhaust pipeline (34), the total steam exhaust of third
Pipeline (35), the first refrigerant line (41), the 6th refrigerant line (46), the 7th refrigerant line (47), the 8th refrigerant
Pipeline (48), the 9th refrigerant line (49), the tenth refrigerant line (50), one effect evaporator (61), two effect evaporator (62),
Vacuumize control valve (64), vacuum pump (65), condensate water collecting tank (66), condensed water discharge pump (67), condensed water non-return valve
(68), the first inlet valve (71), the second inlet valve (72), third inlet valve (73), the first outlet valve (74), the second outlet valve
(75), third outlet valve (76), discharging pump (77), starter (81), raw steam control valve (82), raw steam condensation water valve
(83), start inlet valve (84), starting water pipe (91), the first starting raw steam pipework (92), the one one effect juice vapor pipeline
(93), two juice vapor pipeline (94) is imitated, starting secondary steam pipeline (95), total condensate line (96), vacuum-pumping pipeline (97), are coagulated
It bears water discharge line (98), the first feeding pipe (99), the second feeding pipe (100), third feeding pipe (101), first go out
Expects pipe road (102), the second discharging pipeline (103), third discharging pipeline (104), the 2nd 1 effect juice vapor pipeline (105) and second open
Dynamic raw steam pipework (106),
The outlet end of first intermediary's water circulation pipe (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condensation
The thermal medium outlet end of device (2) is connect with the input end of second intermediary's water circulation pipe (32), second intermediary's water circulation pipe
(32) outlet end with one effect evaporator (61) thermal medium inlet end connect, one effect evaporator (61) thermal medium outlet end and
The input end of first intermediary's water circulation pipe (31) connects,
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 input end of one one effect juice vapor pipeline (93) is connect with the outlet port on effect evaporator (61) top, the one one effect juice
The outlet end of vapor pipeline (93) is connect with the thermal medium inlet end of two effects evaporator (62), and the thermal medium of two effects evaporator (62) goes out
Mouth end is connect with the input end of the 2nd 1 effect juice vapor pipeline (105), the input end of two effects juice vapor pipeline (94) and two effect evaporators
(62) the outlet port connection on top, first starts the life steam inlet of the outlet end of raw steam pipework (92) and starter (81)
End connection, the input end that the life steam (vapor) outlet end of starter (81) starts raw steam pipework (106) with second are connect, the first starting
It is provided with raw steam control valve (82) on raw steam pipework (92), is provided with raw steam in the second starting raw steam pipework (106)
The input end of condensate valve (83), starting secondary steam pipeline (95) is connect with the outlet port on starter (81) top, and second
The outlet end of one effect juice vapor pipeline (105), the outlet end of two effects juice vapor pipeline (94) and going out for starting secondary steam pipeline (95)
Mouth end is connect with first total steam exhaust pipeline (33) input end respectively, and the outlet end of first total steam exhaust pipeline (33) and heat pump first steam
Send out the heat release input end connection of device (6), the heat release outlet end of the first evaporator of heat pump (6) and second total steam exhaust pipeline (34) into
The connection of mouth end,
The outlet end of second total steam exhaust pipeline (34) and the outlet end of the second starting raw steam pipework (106) are always weary with third respectively
The input end of vapor pipeline (35) connects, the heat release of the outlet end of the total steam exhaust pipeline (35) of third and the second evaporator of heat pump (8) into
The connection of mouth end, the heat release outlet end of the second evaporator of heat pump (8) are connect with the input end of total condensate line (96), total condensed water
The outlet end of pipeline (96) is connect with the inlet end of condensate water collecting tank (66), the input end of vacuum-pumping pipeline (97) and condensation
The bleeding point end on water collecting tank (66) top connects, and is disposed with and vacuumizes along flow direction of medium in vacuum-pumping pipeline (97)
Control valve (64) and vacuum pump (65), the outlet end emptying of vacuum-pumping pipeline (97), the input end of condensate water discharge road (98)
It connect with the leakage fluid dram end of condensate water collecting tank (66) lower part, is successively set on condensate water discharge road (98) along flow direction of medium
It is equipped with condensed water discharge pump (67) and condensed water non-return valve (68), the outlet end discharge system of condensate water discharge road (98),
It is provided with starting inlet valve (84) in starting water pipe (91), starts outlet end and the starter of water pipe (91)
(81) the inlet end connection of lower part,
It is provided on first feeding pipe (99) the first material inlet valve (71), the outlet end of the first feeding pipe (99) is respectively with
The input end of two feeding pipes (100) is connected with the input end of third feeding pipe (101), and the second feeding pipe is set on (100)
It being equipped with the second material inlet valve (72), the outlet end of the second feeding pipe (100) is connect with the feed inlet end of effect evaporator (61),
It is provided on third feeding pipe (101) third material inlet valve (73), the outlet end of third feeding pipe (101) is evaporated with two effects
The feed inlet end of tank (62) connects,
The input end of first discharging pipeline (102) is connect with the discharge port end of effect evaporator (61) bottom, the first discharging pipeline
(102) it is provided on the first outlet valve (74), the input end of the second discharging pipeline (103) and two imitates going out for evaporator (62) bottoms
Material mouth end connects, and is provided with the second outlet valve (75) in the second discharging pipeline (103), the outlet end of the first discharging pipeline (102)
It is connect respectively with the input end of third discharging pipeline (104) with the outlet end of the second discharging pipeline (103), third discharging pipeline
(104) it is disposed with third outlet valve (76) and discharging pump (77) along flow direction of medium on, third discharges pipeline (104)
Outlet end discharge system.
5. a kind of two-stage compression heat pump double-effect evaporation concentration systems according to claim 4, it is characterised in that: described second
An effect condensate throttling device (63) is provided in one effect juice vapor pipeline (105).
6. a kind of two-stage compression heat pump double-effect evaporation concentration systems according to claim 4 or 5, it is characterised in that: described
It is U-shaped curved (10) that it is provided with the first condensed water on second total steam exhaust pipeline (34), is provided in the second starting raw steam pipework (106)
Second condensed water is U-shaped curved (85).
7. a kind of two-stage compression heat pump double-effect evaporation concentration systems, it is characterised in that: a kind of two-stage compression heat pump is double
Evaporation concentration system is imitated to include the first compressor (1), heat pump condenser (2), first throttle expansion valve (3), cross cold heat exchanger
(4), the second throttle expansion valve (5), the first evaporator of heat pump (6), third throttle expansion valve (7), the second evaporator of heat pump (8),
Second compressor (9), first intermediary's water circulation pipe (31), second intermediary's water circulation pipe (32), first total steam exhaust pipeline
(33), second total steam exhaust pipeline (34), the total steam exhaust pipeline (35) of third, 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), the 7th refrigerant line (47), the 8th refrigerant line (48), the 9th refrigerant line (49), the tenth refrigerant line
(50), effect evaporator (61), two imitate evaporator (62), vacuumize control valve (64), vacuum pump (65), condensate water collecting tank
(66), condensed water discharge pump (67), condensed water non-return valve (68), the first inlet valve (71), the second inlet valve (72), third charging
Valve (73), the first outlet valve (74), the second outlet valve (75), third outlet valve (76), discharging pump (77), starter (81), life
Steam control valve (82), raw steam condensation water valve (83), starting inlet valve (84), starting water pipe (91), the first starting life
Steam pipework (92), two effects juice vapor pipeline (94), starting secondary steam pipeline (95), always coagulates at the one one effect juice vapor pipeline (93)
Bear water pipeline (96), vacuum-pumping pipeline (97), condensate water discharge road (98), the first feeding pipe (99), the second feeding pipe
(100), third feeding pipe (101), the first discharging pipeline (102), the second discharging pipeline (103), third discharging pipeline
(104), the 2nd 1 effect juice vapor pipeline (105) and second starts raw steam pipework (106),
The outlet end of first intermediary's water circulation pipe (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condensation
The thermal medium outlet end of device (2) is connect with the input end of second intermediary's water circulation pipe (32), second intermediary's water circulation pipe
(32) outlet end with one effect evaporator (61) thermal medium inlet end connect, one effect evaporator (61) thermal medium outlet end and
The input end of first intermediary's water circulation pipe (31) connects,
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 input end of one one effect juice vapor pipeline (93) is connect with the outlet port on effect evaporator (61) top, the one one effect juice
The outlet end of vapor pipeline (93) is connect with the thermal medium inlet end of two effects evaporator (62), and the thermal medium of two effects evaporator (62) goes out
Mouth end is connect with the input end of the 2nd 1 effect juice vapor pipeline (105), the input end of two effects juice vapor pipeline (94) and two effect evaporators
(62) the outlet port connection on top, first starts the life steam inlet of the outlet end of raw steam pipework (92) and starter (81)
End connection, the input end that the life steam (vapor) outlet end of starter (81) starts raw steam pipework (106) with second are connect, the first starting
It is provided with raw steam control valve (82) on raw steam pipework (92), is provided with raw steam in the second starting raw steam pipework (106)
The input end of condensate valve (83), starting secondary steam pipeline (95) is connect with the outlet port on starter (81) top, and second
The outlet end of one effect juice vapor pipeline (105), the outlet end of two effects juice vapor pipeline (94) and going out for starting secondary steam pipeline (95)
Mouth end is connect with first total steam exhaust pipeline (33) input end respectively, and the outlet end of first total steam exhaust pipeline (33) and heat pump first steam
Send out the heat release input end connection of device (6), the heat release outlet end of the first evaporator of heat pump (6) and second total steam exhaust pipeline (34) into
The connection of mouth end,
The outlet end of second total steam exhaust pipeline (34) and the outlet end of the second starting raw steam pipework (106) are always weary with third respectively
The input end of vapor pipeline (35) connects, the heat release of the outlet end of the total steam exhaust pipeline (35) of third and the second evaporator of heat pump (8) into
The connection of mouth end, the heat release outlet end of the second evaporator of heat pump (8) are connect with the input end of total condensate line (96), total condensed water
The outlet end of pipeline (96) is connect with the inlet end of condensate water collecting tank (66), the input end of vacuum-pumping pipeline (97) and condensation
The bleeding point end on water collecting tank (66) top connects, and is disposed with and vacuumizes along flow direction of medium in vacuum-pumping pipeline (97)
Control valve (64) and vacuum pump (65), the outlet end emptying of vacuum-pumping pipeline (97), the input end of condensate water discharge road (98)
It connect with the leakage fluid dram end of condensate water collecting tank (66) lower part, is successively set on condensate water discharge road (98) along flow direction of medium
It is equipped with condensed water discharge pump (67) and condensed water non-return valve (68), the outlet end discharge system of condensate water discharge road (98),
It is provided with starting inlet valve (84) in starting water pipe (91), starts outlet end and the starter of water pipe (91)
(81) the inlet end connection of lower part,
It is provided on first feeding pipe (99) the first material inlet valve (71), the outlet end of the first feeding pipe (99) is respectively with
The input end of two feeding pipes (100) is connected with the input end of third feeding pipe (101), and the second feeding pipe is set on (100)
It being equipped with the second material inlet valve (72), the outlet end of the second feeding pipe (100) is connect with the feed inlet end of effect evaporator (61),
It is provided on third feeding pipe (101) third material inlet valve (73), the outlet end of third feeding pipe (101) is evaporated with two effects
The feed inlet end of tank (62) connects,
The input end of first discharging pipeline (102) is connect with the discharge port end of effect evaporator (61) bottom, the first discharging pipeline
(102) it is provided on the first outlet valve (74), the input end of the second discharging pipeline (103) and two imitates going out for evaporator (62) bottoms
Material mouth end connects, and is provided with the second outlet valve (75) in the second discharging pipeline (103), the outlet end of the first discharging pipeline (102)
It is connect respectively with the input end of third discharging pipeline (104) with the outlet end of the second discharging pipeline (103), third discharging pipeline
(104) it is disposed with third outlet valve (76) and discharging pump (77) along flow direction of medium on, third discharges pipeline (104)
Outlet end discharge system.
8. a kind of two-stage compression heat pump double-effect evaporation concentration systems according to claim 7, it is characterised in that: described second
An effect condensate throttling device (63) is provided in one effect juice vapor pipeline (105).
9. according to a kind of two-stage compression heat pump double-effect evaporation concentration systems of claim 7 or 8, it is characterised in that: described
It is U-shaped curved (10) that it is provided with the first condensed water on second total steam exhaust pipeline (34), is provided in the second starting raw steam pipework (106)
Second condensed water is U-shaped curved (85).
10. a kind of two-stage compression heat pump double-effect evaporation concentration systems, it is characterised in that: a kind of two-stage compression heat pump is double
Evaporation concentration system is imitated to include the first compressor (1), heat pump condenser (2), first throttle expansion valve (3), cross cold heat exchanger
(4), the second throttle expansion valve (5), the first evaporator of heat pump (6), third throttle expansion valve (7), the second evaporator of heat pump (8),
Second compressor (9), first intermediary's water circulation pipe (31), second intermediary's water circulation pipe (32),
First total steam exhaust pipeline (33), second total steam exhaust pipeline (34), the total steam exhaust pipeline (35) of third, 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), the 7th refrigerant line (47), the 8th refrigerant line (48), the 9th refrigerant line
(49), the tenth refrigerant line (50), effect evaporator (61), two imitate evaporator (62), vacuumize control valve (64), vacuum pump
(65), condensate water collecting tank (66), condensed water discharge pump (67), condensed water non-return valve (68), the first inlet valve (71), second into
Expect valve (72), third inlet valve (73), the first outlet valve (74), the second outlet valve (75), third outlet valve (76), discharging pump
(77), starter (81), raw steam control valve (82), raw steam condensation water valve (83), starting inlet valve (84), starting water supply pipe
Road (91), the first starting raw steam pipework (92), the one one effect juice vapor pipeline (93), two effects juice vapor pipeline (94), starting are secondary
Steam pipework (95), total condensate line (96), vacuum-pumping pipeline (97), condensate water discharge road (98), the first feeding pipe
(99), the second feeding pipe (100), third feeding pipe (101), first discharging pipeline (102), second discharging pipeline (103),
Third discharges pipeline (104), the 2nd 1 effect juice vapor pipeline (105) and second starts raw steam pipework (106),
The outlet end of first intermediary's water circulation pipe (31) is connect with the thermal medium inlet end of heat pump condenser (2), heat pump condensation
The thermal medium outlet end of device (2) is connect with the input end of second intermediary's water circulation pipe (32), second intermediary's water circulation pipe
(32) outlet end with one effect evaporator (61) thermal medium inlet end connect, one effect evaporator (61) thermal medium outlet end and
The input end of first intermediary's water circulation pipe (31) connects,
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 input end of one one effect juice vapor pipeline (93) is connect with the outlet port on effect evaporator (61) top, the one one effect juice
The outlet end of vapor pipeline (93) is connect with the thermal medium inlet end of two effects evaporator (62), and the thermal medium of two effects evaporator (62) goes out
Mouth end is connect with the input end of the 2nd 1 effect juice vapor pipeline (105), the input end of two effects juice vapor pipeline (94) and two effect evaporators
(62) the outlet port connection on top, first starts the life steam inlet of the outlet end of raw steam pipework (92) and starter (81)
End connection, the input end that the life steam (vapor) outlet end of starter (81) starts raw steam pipework (106) with second are connect, the first starting
It is provided with raw steam control valve (82) on raw steam pipework (92), is provided with raw steam in the second starting raw steam pipework (106)
The input end of condensate valve (83), starting secondary steam pipeline (95) is connect with the outlet port on starter (81) top, and second
The outlet end of one effect juice vapor pipeline (105), the outlet end of two effects juice vapor pipeline (94) and going out for starting secondary steam pipeline (95)
Mouth end is connect with first total steam exhaust pipeline (33) input end respectively, and the outlet end of first total steam exhaust pipeline (33) and heat pump first steam
Send out the heat release input end connection of device (6), the heat release outlet end of the first evaporator of heat pump (6) and second total steam exhaust pipeline (34) into
The connection of mouth end,
The outlet end of second total steam exhaust pipeline (34) and the outlet end of the second starting raw steam pipework (106) are always weary with third respectively
The input end of vapor pipeline (35) connects, the heat release of the outlet end of the total steam exhaust pipeline (35) of third and the second evaporator of heat pump (8) into
The connection of mouth end, the heat release outlet end of the second evaporator of heat pump (8) are connect with the input end of total condensate line (96), total condensed water
The outlet end of pipeline (96) is connect with the inlet end of condensate water collecting tank (66), the input end of vacuum-pumping pipeline (97) and condensation
The bleeding point end on water collecting tank (66) top connects, and is disposed with and vacuumizes along flow direction of medium in vacuum-pumping pipeline (97)
Control valve (64) and vacuum pump (65), the outlet end emptying of vacuum-pumping pipeline (97), the input end of condensate water discharge road (98)
It connect with the leakage fluid dram end of condensate water collecting tank (66) lower part, is successively set on condensate water discharge road (98) along flow direction of medium
It is equipped with condensed water discharge pump (67) and condensed water non-return valve (68), the outlet end discharge system of condensate water discharge road (98),
It is provided with starting inlet valve (84) in starting water pipe (91), starts outlet end and the starter of water pipe (91)
(81) the inlet end connection of lower part,
It is provided on first feeding pipe (99) the first material inlet valve (71), the outlet end of the first feeding pipe (99) is respectively with
The input end of two feeding pipes (100) is connected with the input end of third feeding pipe (101), and the second feeding pipe is set on (100)
It being equipped with the second material inlet valve (72), the outlet end of the second feeding pipe (100) is connect with the feed inlet end of effect evaporator (61),
It is provided on third feeding pipe (101) third material inlet valve (73), the outlet end of third feeding pipe (101) is evaporated with two effects
The feed inlet end of tank (62) connects,
The input end of first discharging pipeline (102) is connect with the discharge port end of effect evaporator (61) bottom, the first discharging pipeline
(102) it is provided on the first outlet valve (74), the input end of the second discharging pipeline (103) and two imitates going out for evaporator (62) bottoms
Material mouth end connects, and is provided with the second outlet valve (75) in the second discharging pipeline (103), the outlet end of the first discharging pipeline (102)
It is connect respectively with the input end of third discharging pipeline (104) with the outlet end of the second discharging pipeline (103), third discharging pipeline
(104) it is disposed with third outlet valve (76) and discharging pump (77) along flow direction of medium on, third discharges pipeline (104)
Outlet end discharge system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544907.9A CN109350983B (en) | 2018-12-17 | 2018-12-17 | Double-stage compression type heat pump double-effect evaporation concentration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811544907.9A CN109350983B (en) | 2018-12-17 | 2018-12-17 | Double-stage compression type heat pump double-effect evaporation concentration system |
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| CN109350983B CN109350983B (en) | 2024-03-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891971A (en) * | 2021-03-10 | 2021-06-04 | 佛山德众制药机械有限公司 | Vacuum push-pull double-effect concentration system |
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| CN113350814A (en) * | 2021-05-25 | 2021-09-07 | 哈尔滨工业大学 | Deep evaporation concentration system of jet compression type heat pump |
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