CN207214513U - A kind of multistage absorption heat pump and heat-exchange unit - Google Patents
A kind of multistage absorption heat pump and heat-exchange unit Download PDFInfo
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- CN207214513U CN207214513U CN201720941207.8U CN201720941207U CN207214513U CN 207214513 U CN207214513 U CN 207214513U CN 201720941207 U CN201720941207 U CN 201720941207U CN 207214513 U CN207214513 U CN 207214513U
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/04—Heat pumps of the sorption type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a kind of multistage absorption heat pump and heat-exchange unit, belong to central heating technical field.Wherein multistage absorption heat pump includes：Multi-stage generator (G), multi-stage condensing device (C), multistage absorption device (A) and multi-stage evaporator (E)；Multi-stage generator (G) is equal with the series of multi-stage condensing device (C), is connected between multi-stage generator (G) series corresponding with multi-stage condensing device (C)；Multistage absorption device (A) is equal with the series of multi-stage evaporator (E), is connected between multistage absorption device (A) series corresponding with multi-stage evaporator (E).The heat-exchange unit formed using multistage absorption heat pump, on the premise of ensureing that secondary network supplies backwater parameter constant, the temperature by the use of temperature limited once water supply as driving, as far as possible reduction primary water, flow can realize modularization, compact designed, improvement and installation convenient to carry out simultaneously.
Description
Technical field
Central heating technical field is the utility model is related to, more particularly to a kind of multistage absorption heat pump and heat exchanger
Group.
Background technology
With being continuously increased for city heat supply area, thermal load demands rapid development, the existing pipe network of central heating system because
The limitation of flow and temperature has been difficult meet demand.
In order to reach heating demand, it is necessary to set about from increase flow or raising temperature difference these two aspects.But increase flow needs
Will roughing-in again, cost is very high in the city of high traffic, therefore, is only improved heat supply supply backwater temperature difference, just can be with
The water conveyance and distribution capacity of pipe network is improved in the case where flow is constant, meets the needs of thermic load.
Because the supply water temperature of central heating system is limited by pipe network bearing capacity, can not typically significantly improve, therefore,
It is the subject matter for solving current pipe network transmission ＆ distribution bottleneck that return water temperature, which is greatly lowered,.In addition, most of central heating systems change
Heat stations have been built up, general compact in design, can not install large scale equipment, and a restrictive condition to the transformation of the big temperature difference.Cause
This, there is an urgent need to develop a kind of heat-exchange unit formed using multistage absorption heat pump, is ensureing secondary network for backwater parameter not
On the premise of change, the temperature by the use of temperature limited once water supply as driving, as far as possible reduction primary water, while flow can
To realize modularization, compact designed, improvement and installation convenient to carry out.
Utility model content
The utility model is by setting multistage absorption heat pump, including multi-stage generator, multi-stage condensing device, multistage absorption device
And multi-stage evaporator, and pass through concentrated solution conveyance conduit, weak solution conveyance conduit, the first cryogen waterpipe, the second water as refrigerant
Pipeline and the 3rd cryogen waterpipe circulate solution in multistage absorption heat pump.And utilize multistage absorption heat pump, Shui Shui
Heat exchanger, high-temperature water pipeline and low temperature water lines composition heat-exchange unit.By the use of temperature limited once water supply as driving, to the greatest extent may be used
The temperature of primary water can be reduced, while flow can realize modularization, compact designed, improvement and installation convenient to carry out.
According to a kind of multistage absorption heat pump of the one side of the utility model embodiment, including：Multi-stage generator, multistage
Condenser, multistage absorption device and multi-stage evaporator；The multi-stage generator is equal with the series of the multi-stage condensing device, described
It is connected between multi-stage generator series corresponding with the multi-stage condensing device；The multistage absorption device and the multi-stage evaporator
Series is equal, is connected between the multistage absorption device series corresponding with the multi-stage evaporator.
Further, multistage absorption heat pump also includes:Multiple concentrated solution conveyance conduits convey with each concentrated solution is arranged on
The liquid distributor of the output end of pipeline；The input of each concentrated solution conveyance conduit connects the multi-stage generator wherein
One-level, its output end connect the wherein one-level of the multistage absorption device.
Further, multistage absorption heat pump also includes：Multiple weak solution conveyance conduits convey with each weak solution is arranged on
The liquid distributor of the output end of pipeline；The input of each weak solution conveyance conduit connects the multistage absorption device wherein
One-level, its output end connect the wherein one-level of the multi-stage generator.
Further, multistage absorption heat pump also includes：Multiple solution heat exchangers；Each solution heat exchanger is set
On a weak solution conveyance conduit and a concentrated solution conveyance conduit；The solution heat exchanger is used for described
Weak solution in concentrated solution and the weak solution pipeline in weak solution conveyance conduit carries out heat exchange.
Further, solution pump is provided with each weak solution conveyance conduit, the solution pump is used for be described dilute molten
The circulation of weak solution in liquid conveyance conduit provides power.
Further, cryogen water tank is set in every grade of the multi-stage condensing device；Set in every grade of the multi-stage evaporator
Cryogen water tank；The cryogen water tank is used to store the water as refrigerant not evaporated in the multi-stage evaporator；The multi-stage condensing device
Adjacent series between cryogen water tank be connected by the first cryogen waterpipe；Between the adjacent series of the multi-stage evaporator
Cryogen water tank be connected by the second cryogen waterpipe；Water as refrigerant between the multi-stage condensing device and the multi-stage evaporator
Case is connected by the 3rd cryogen waterpipe.
Further, it is provided with throttling arrangement on the 3rd cryogen waterpipe；The throttling arrangement is used for the described 3rd
Water as refrigerant in cryogen waterpipe carries out expenditure and pressure.
Further, multistage absorption heat pump also includes：Water as refrigerant backpass ductwork；The water as refrigerant backpass ductwork includes one
Input and multiple output ends；Each output end is provided with a liquid distributor；The input of the water as refrigerant backpass ductwork
End connects the bottom of the multi-stage evaporator；The liquid distributor of each output end of the water as refrigerant backpass ductwork is arranged on described
Top in every grade of multi-stage evaporator.
Further, multistage absorption heat pump also includes：Multiple water as refrigerant backpass ductworks；Each water as refrigerant backpass ductwork
Including an input and an output end；Each output end is provided with a liquid distributor；Each water as refrigerant returns
The input of pipeline is sent to be respectively communicated with the bottom of every one-level in the multi-stage evaporator；Each the water as refrigerant backpass ductwork is defeated
The liquid distributor for going out end is arranged on the multi-stage evaporator E and the top in input peer.
Further, it is additionally provided with cryogenic fluid pump on the water as refrigerant backpass ductwork；It is the water as refrigerant that the cryogenic fluid pump, which is used for,
The circulation of water as refrigerant in backpass ductwork provides power.
According to a kind of heat-exchange unit of the other side of the utility model embodiment, including above-mentioned multistage absorption heat pump,
Also include water water- to-water heat exchanger, high-temperature water pipeline and low temperature water lines；The high-temperature water pipeline pass sequentially through the multi-stage generator,
The water water- to-water heat exchanger and the multi-stage evaporator, to cause the water in the high-temperature water pipeline to cool；The low temperature water lines
Including water water- to-water heat exchanger branch road and heat pump branch road；The water water- to-water heat exchanger branch road is described to cause by the water water- to-water heat exchanger
Water heating in water water- to-water heat exchanger branch road.
Further, the heat pump branch road passes sequentially through the multistage absorption device, the multi-stage condensing device, to cause the heat
Water heating in pump branch road.
Further, the heat pump branch road includes：Absorber bypass, condenser bypass；The absorber bypass passes through described
Multistage absorption device, to cause the water in the absorber bypass to heat up；The condenser bypass by the multi-stage condensing device, with
So that the water heating in the condenser bypass.
A kind of multistage absorption heat pump of the utility model and heat-exchange unit, by the way that absorption heat pump is arranged into multistage suction
Receipts formula heat pump, it includes multi-stage generator, multi-stage condensing device, multistage absorption device and multi-stage evaporator.By multistage absorption heat
Pump, water water- to-water heat exchanger, high-temperature water pipeline and low temperature water lines form heat-exchange unit, utilize changing for multistage absorption heat pump composition
Heat engine group, on the premise of ensureing that secondary network supplies backwater parameter constant, by the use of temperature limited once water supply as driving, to the greatest extent may be used
The temperature of primary water can be reduced, while flow can realize modularization, compact designed, improvement and installation convenient to carry out.
Brief description of the drawings
Fig. 1 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the utility model first embodiment provides is shown
It is intended to；
Fig. 2 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the utility model second embodiment provides is shown
It is intended to；
Fig. 3 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the utility model 3rd embodiment provides is shown
It is intended to；
Fig. 4 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the utility model fourth embodiment provides is shown
It is intended to；
Fig. 5 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the embodiment of the utility model the 5th provides is shown
It is intended to；
Fig. 6 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the utility model sixth embodiment provides is shown
It is intended to；
Fig. 7 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the embodiment of the utility model the 7th provides is shown
It is intended to；
Fig. 8 is that the structure of a kind of multistage absorption heat pump and heat-exchange unit that the embodiment of the utility model the 8th provides is shown
It is intended to.
Reference：
G is multi-stage generator, G1 is first-stage generator, G2 is second-stage generator, C is multi-stage condensing device, C1 is that one-level is cold
Condenser, C2 are secondary condenser, A is multistage absorption device, A1 is first absorber, A2 is secondary absorber, E is multistage evaporation
Device, E1 are one-level evaporator, E2 is secondary evaporimeter, H is solution heat exchanger, H1 is the first solution heat exchanger, H2
Two solution heat exchangers, Pr are solution pump, Pr1 is the first solution pump, Pr2 is the second solution pump, K is throttling arrangement, Ps is cold
Agent pump, Ps1 are the first cryogenic fluid pump, Ps2 is the second cryogenic fluid pump, EX is water water- to-water heat exchanger.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to embodiment
And referring to the drawings, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid not
Necessarily obscure concept of the present utility model.
First implements：
Referring to Fig. 1, Fig. 1 is a kind of the multistage absorption heat pump and heat exchanger that the utility model first embodiment provides
The structural representation of group.
As shown in figure 1, a kind of multistage absorption heat pump includes：Multi-stage generator G, multi-stage condensing device C, multistage absorption device A
And multi-stage evaporator E；Multi-stage generator G is equal with multi-stage condensing device C series, C pairs of multi-stage generator G and multi-stage condensing device
Answer and be connected between series；Multistage absorption device A is equal with multi-stage evaporator E series, multistage absorption device A and multi-stage evaporator E
It is connected between corresponding series.
Specifically, it is not used to more in restriction the application in the present embodiment with two level absorption heat pump as an example
The series of level absorption heat pump.Preferable multi-stage generator G is second-stage generator, and wherein G1 is first-stage generator, G2 is two level
Generator；Multi-stage condensing device C is secondary condenser, and wherein C1 is first-stage condenser, C2 is secondary condenser；Multistage absorption device A
For secondary absorber, wherein A1 is first absorber, A2 is secondary absorber；Multi-stage evaporator E is secondary evaporimeter, wherein E1
It is secondary evaporimeter for one-level evaporator, E2.First-stage generator G1 is connected with first-stage condenser C1, second-stage generator G2 and two
Level condenser C2 is connected；First absorber A1 is connected with one-level evaporator E1, secondary absorber A2 and secondary evaporimeter E2
It is connected.
Preferably, multistage absorption heat pump also includes:Multiple concentrated solution conveyance conduits convey with each concentrated solution is arranged on
The liquid distributor of the output end of pipeline；The input connection multi-stage generator G of each concentrated solution conveyance conduit wherein one-level, its
Output end connection multistage absorption device A wherein one-level.
Specifically, concentrated solution conveyance conduit is used to connect multi-stage generator G and multistage absorption device A；First-stage generator G1 leads to
The concentrated solution of heating concentration inside first-stage generator G1 is delivered to first absorber A1 by overrich solution delivery line, and dense molten
The output end of liquid conveyance conduit is provided with liquid distributor.Second-stage generator G2 is by concentrated solution conveyance conduit by second-stage generator G2
The concentrated solution of inside heating concentration is delivered to secondary absorber A2, and the output end of concentrated solution conveyance conduit is provided with cloth liquid dress
Put.
Preferably, multistage absorption heat pump also includes：Multiple weak solution conveyance conduits convey with each weak solution is arranged on
The liquid distributor of the output end of pipeline；The input connection multistage absorption device A of each weak solution conveyance conduit wherein one-level, its
Output end connection multi-stage generator G wherein one-level.
Specifically, weak solution conveyance conduit is used to connect multistage absorption device A and multi-stage generator G；First absorber A1 leads to
Cross weak solution conveyance conduit and caused weak solution in first absorber A1 is delivered to first-stage generator G1, and weak solution conveys
The output end of pipeline is provided with liquid distributor.Secondary absorber A2 will be produced by weak solution conveyance conduit in secondary absorber A2
Weak solution be delivered to second-stage generator G2, and the output end of weak solution conveyance conduit is provided with liquid distributor.Wherein cloth liquid
Device can be spray structure or drop leaching structure.
Preferably, multistage absorption heat pump also includes：Multiple each solution heat exchanger H of solution heat exchanger H are arranged on
On one weak solution conveyance conduit and a concentrated solution conveyance conduit；Solution heat exchanger H is used in weak solution conveyance conduit
Concentrated solution and weak solution pipeline in weak solution carry out heat exchange.
Specifically, multiple solution heat exchanger H include the first solution heat exchanger H1 and the second solution heat exchanger H2.
Wherein the first solution heat exchanger H1 is by the weak solution conveyance conduit between connecting first absorber A1 and first-stage generator G1
Concentrated solution and weak solution pipeline in weak solution carry out heat exchange；Second solution heat exchanger H2 will connect secondary absorber A2
Weak solution in the concentrated solution and weak solution pipeline in weak solution conveyance conduit between second-stage generator G2 carries out heat exchange.
That is it is both provided with a solution heat exchanger between the absorber per one-level and the generator of absorber peer.
Preferably, solution pump Pr is provided with each weak solution conveyance conduit, it is weak solution delivery pipe that solution pump Pr, which is used for,
The circulation of weak solution in road provides power.
Specifically, solution pump Pr includes the first solution pump Pr1 and the second solution pump Pr.Wherein the first solution pump Pr1 is set
On weak solution conveyance conduit between first absorber A1 and first-stage generator G1, for be dilute in weak solution conveyance conduit
The circulation of solution provides power；Wherein the second solution pump Pr2 is arranged on dilute between secondary absorber A2 and second-stage generator G2
On solution delivery line, for providing power for the circulation of the weak solution in weak solution conveyance conduit.That is per one-level
A solution pump is both provided between absorber and the generator of absorber peer.
Preferably, cryogen water tank is set in every grade of multi-stage condensing device C；Water as refrigerant is set in every grade of multi-stage evaporator E
Case；Cryogen water tank is used to store the water as refrigerant not evaporated in the multi-stage evaporator E；Multi-stage condensing device C adjacent series it
Between cryogen water tank be connected by the first cryogen waterpipe；Cryogen water tank between multi-stage evaporator E adjacent series passes through
Second cryogen waterpipe is connected；Cryogen water tank between multi-stage condensing device C and multi-stage evaporator E passes through the 3rd cryogen waterpipe
It is connected.
Specifically, it is respectively provided with first-stage condenser C1, secondary condenser C2, one-level evaporator E1 and secondary evaporimeter E2
There is cryogen water tank.Wherein pass through the first cryogen between first-stage condenser C1 cryogen water tank and secondary condenser C2 cryogen water tank
Waterpipe is connected；Pass through the second cryogen between one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 cryogen water tank
Waterpipe is connected；Pass through the 3rd water as refrigerant between first-stage condenser C1 cryogen water tank and one-level evaporator E1 cryogen water tank
Pipeline be connected and/or first-stage condenser C1 cryogen water tank and secondary evaporimeter E2 cryogen water tank between by the 3rd cryogen
Waterpipe is connected.
Preferably, it is provided with throttling arrangement K on the 3rd cryogen waterpipe；Throttling arrangement K is used for the 3rd cryogen waterpipe
Interior water as refrigerant carries out expenditure and pressure.
Specifically, throttling arrangement K can be standard throttle apparatus and non-standard throttling arrangement.Wherein standard throttle apparatus
Can be：Standard orifice plate, ISA calibrating nozzles, Long Nozzle, classical venturi tube and Venturi nozzle；Non-standard throttling arrangement
Can be：Annular oriffice, a quarter circular jet nozzle, a quarter circular hole slab, conical entrance orifice plate, segmental orifice plate, eccentric orifice plate,
Dual orifice plate, low pressure loss flowtube, rectangular Venturi, V-type cone flow meter, wedge flow meter, built-in orificeplate, restriction orifice
Deng.
Preferably, multistage absorption heat pump also includes：Water as refrigerant backpass ductwork；Water as refrigerant backpass ductwork includes an input
End and multiple output ends；Each output end is provided with a liquid distributor；The input connection of water as refrigerant backpass ductwork is multistage to steam
Send out device E bottom；The liquid distributor of each output end of water as refrigerant backpass ductwork is arranged on the top in every grade of multi-stage evaporator E
Portion.
Specifically, in multi-stage evaporator E, one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 water as refrigerant
It is connected between case by the second cryogen waterpipe.The water as refrigerant not evaporated in secondary evaporimeter E2 cryogen water tank is passed through
Second water as refrigerant pipeline to one-level evaporator E1 cryogen water tank.The bottom of one-level evaporator E1 cryogen water tank is provided with
The input of water as refrigerant backpass ductwork, multiple output ends of water as refrigerant backpass ductwork are arranged on one-level by liquid distributor respectively and steamed
Send out the top in device E1 and secondary evaporimeter E2.
Preferably, cryogenic fluid pump Ps is additionally provided with water as refrigerant backpass ductwork；It is water as refrigerant backpass ductwork that cryogenic fluid pump Ps, which is used for,
The circulation of interior water as refrigerant provides power.
Specifically, each input of water as refrigerant backpass ductwork is provided with cryogenic fluid pump Ps, for for water as refrigerant backpass ductwork
The circulation of interior water as refrigerant provides power.
Specifically, the internal solution flow direction of multistage absorption heat pump is：Weak solution in first absorber A1 passes through first
Solution pump Pr1 enters first-stage generator G1 after the first solution heat exchanger H1 heatings, by outside heat in first-stage generator G1
Amount heating concentration, caused vapor condenses in first-stage condenser C1, and the heat external fluid in first-stage condenser C1；Two
Weak solution in level absorber A2 enters second-stage generator by the second solution pump Pr after the second solution heat exchanger H2 heatings
G2, being heated and concentrate by outside heat in second-stage generator G2, caused vapor condenses in secondary condenser C2, and two
Heat external fluid in level condenser C2.Caused water as refrigerant and caused cryogen in secondary condenser C2 in first-stage condenser C1
After water converges first-stage condenser C1 cryogen water tank by the first cryogen waterpipe, then by the 3rd cryogen waterpipe and pass through
Evaporate to form vapor into absorption outside heat in one-level evaporator E1 after crossing throttling arrangement K decompressions, without evaporating completely
Water as refrigerant enters in one-level evaporator E1 cryogen water tank, and passes through water as refrigerant backpass ductwork and the cryogen being arranged on pipeline
Water as refrigerant is delivered in one-level evaporator E1 and secondary evaporimeter E2 by pump Ps respectively carries out double evaporation-cooling, in secondary evaporimeter E2
The water as refrigerant not evaporated is entered in one-level evaporator E1 by the second cryogen waterpipe.Weak solution is evaporated in first-stage generator G1
Caused concentrated solution enters first absorber A1 after the first solution heat exchanger H1 coolings, absorbs vapor and forms weak solution,
And release heat external fluid；In first absorber A1 caused weak solution by the first solution pump Pr1 through the first solution
Enter first-stage generator G1 after heat exchanger H1 heatings, form complete cycle；In second-stage generator G2 caused by weak solution evaporation
Concentrated solution enters secondary absorber A2 after the second solution heat exchanger H2 coolings, absorbs vapor and forms weak solution, and releases
Heat external fluid；In secondary absorber A2 caused weak solution by the second solution pump Pr2 through the second solution heat exchange
Enter second-stage generator G2 after device H2 heatings, form complete cycle.
Preferably, above-mentioned multistage absorption heat pump and water water- to-water heat exchanger, high-temperature water pipeline and the common structure of low temperature water lines
Into heat-exchange unit.High-temperature water pipeline passes sequentially through multi-stage generator G, water water- to-water heat exchanger EX and multi-stage evaporator E, to cause height
Water cooling in warm water pipeline；Low temperature water lines include water water- to-water heat exchanger branch road and heat pump branch road；Water water- to-water heat exchanger branch road passes through
Water water- to-water heat exchanger, to cause the water in water water- to-water heat exchanger branch road to heat up.
Specifically, heat pump branch road passes sequentially through the multistage absorption device A, multi-stage condensing device C, to cause in heat pump branch road
Water heats up.
Specifically, high-temperature water pipeline high temperature hot water first passes through second-stage generator G2, then by first-stage generator G1 heat releases,
Exchange heat subsequently into water water- to-water heat exchanger EX, cool then into one-level evaporator E1, after finally entering secondary evaporimeter E2 coolings
Output.
Specifically, low temperature water lines parallel connection is divided into two-way, it is respectively：Water water- to-water heat exchanger branch road and heat pump branch road.Water water changes
Low-temperature water heating in hot device branch road is exchanged heat by water water- to-water heat exchanger EX；Low-temperature water heating in heat pump branch road passes sequentially through first order absorption
Device A1, secondary absorber A2, first-stage condenser C1, secondary condenser C2, finally with the Low Temperature Thermal by water water- to-water heat exchanger branch road
Exported after water mixing.
Second implements：
Fig. 2 is refer to, Fig. 2 is a kind of the multistage absorption heat pump and heat exchanger that the utility model second embodiment provides
The structural representation of group.
As shown in Fig. 2 multistage absorption heat pump, multistage absorption heat pump internal solution flow direction, heat exchanger in the present embodiment
The high-temperature water pipeline of group and heat-exchange unit with it is described consistent in first embodiment, this is not being carried out in the present embodiment
Repeat.
Low temperature water lines parallel connection is divided into two-way, is respectively：Water water- to-water heat exchanger branch road and heat pump branch road.Water water- to-water heat exchanger branch road
In low-temperature water heating pass through water water- to-water heat exchanger EX heat exchange；Low-temperature water heating in heat pump branch road passes sequentially through secondary absorber A2, one
Level absorber A1, first-stage condenser C1, secondary condenser C2, finally with mixed by the low-temperature water heating of water water- to-water heat exchanger branch road after
Output.
3rd implements：
Fig. 3 is refer to, Fig. 3 is a kind of the multistage absorption heat pump and heat exchanger that the utility model 3rd embodiment provides
The structural representation of group.
As shown in figure 3, multistage absorption heat pump, multistage absorption heat pump internal solution flow direction, heat exchanger in the present embodiment
The high-temperature water pipeline of group and heat-exchange unit with it is described consistent in first embodiment, this is not being carried out in the present embodiment
Repeat.
The low temperature water lines include water water- to-water heat exchanger branch road and heat pump branch road；Water water- to-water heat exchanger branch road passes through the water water
Heat exchanger, to cause the water in water water- to-water heat exchanger branch road to heat up.Heat pump branch road includes：Absorber bypass, condenser bypass；Absorb
Device bypass passes through multistage absorption device A, to cause the water in absorber bypass to heat up；Condenser bypass by multi-stage condensing device C, with
So that the water heating in condenser bypass.
Specifically, low temperature water lines parallel connection is divided into three tunnels, it is respectively：Water water- to-water heat exchanger branch road, absorber bypass, condenser
Bypass.After low-temperature water heating in water water- to-water heat exchanger branch road is exchanged heat by water water- to-water heat exchanger EX；Low-temperature water heating in absorber bypass
Pass sequentially through first absorber A1, secondary absorber A2.Low-temperature water heating in condenser bypass pass sequentially through first-stage condenser C1,
Secondary condenser C2, last water water- to-water heat exchanger branch road, absorber are bypassed, exported after the low-temperature water heating mixing in condenser bypass.
4th implements：
Fig. 4 is refer to, Fig. 4 is a kind of the multistage absorption heat pump and heat exchanger that the utility model fourth embodiment provides
The structural representation of group.
As shown in figure 4, multistage absorption heat pump, multistage absorption heat pump internal solution flow direction, heat exchanger in the present embodiment
The high-temperature water pipeline of group and heat-exchange unit with it is described consistent in first embodiment, this is not being carried out in the present embodiment
Repeat.
The low temperature water lines include water water- to-water heat exchanger branch road and heat pump branch road；Water water- to-water heat exchanger branch road passes through the water water
Heat exchanger, to cause the water in water water- to-water heat exchanger branch road to heat up.Heat pump branch road includes：Absorber bypass, condenser bypass；Absorb
Device bypass passes through multistage absorption device A, to cause the water in absorber bypass to heat up；Condenser bypass by multi-stage condensing device C, with
So that the water heating in condenser bypass.
Specifically, low temperature water lines parallel connection is divided into three tunnels, it is respectively：Water water- to-water heat exchanger branch road, absorber bypass, condenser
Bypass.After low-temperature water heating in water water- to-water heat exchanger branch road is exchanged heat by water water- to-water heat exchanger EX；Low-temperature water heating in absorber bypass
Pass sequentially through secondary absorber A2, first absorber A1.Low-temperature water heating in condenser bypass pass sequentially through first-stage condenser C1,
Secondary condenser C2, last water water- to-water heat exchanger branch road, absorber are bypassed, exported after the low-temperature water heating mixing in condenser bypass.
5th implements：
Fig. 5 is refer to, Fig. 5 is a kind of the multistage absorption heat pump and heat exchanger that the embodiment of the utility model the 5th provides
The structural representation of group.
As shown in figure 5, multistage absorption heat pump, multistage absorption heat pump internal solution flow direction, heat exchanger in the present embodiment
The high-temperature water pipeline of group and heat-exchange unit with it is described consistent in first embodiment, this is not being carried out in the present embodiment
Repeat.
Specifically, low temperature water lines parallel connection is divided into three tunnels, it is respectively：Water water- to-water heat exchanger branch road, the first heat pump branch road, second
Heat pump branch road.After low-temperature water heating in water water- to-water heat exchanger branch road is exchanged heat by water water- to-water heat exchanger EX；It is low in first heat pump branch road
Warm water passes sequentially through secondary absorber A2, secondary condenser C2.Low-temperature water heating in second heat pump branch road passes sequentially through one-level
Absorber A1, first-stage condenser C1.Low Temperature Thermal in last water water- to-water heat exchanger branch road, the first heat pump branch road, the second heat pump branch road
Exported after water mixing.
6th implements：
Fig. 6 is refer to, Fig. 6 is a kind of the multistage absorption heat pump and heat exchanger that the utility model sixth embodiment provides
The structural representation of group.
As shown in fig. 6, heat-exchange unit, the high-temperature water pipeline of heat-exchange unit and the water at low temperature of heat-exchange unit in the present embodiment
Pipeline is consistent with described in any embodiment in the first to the 5th embodiment, multistage absorption heat pump and multistage absorption heat
The 3rd cryogen waterpipe in pump internal solution flow direction is different from the first to the 5th embodiment, and remaining is all consistent.In this implementation
Uniform portion is not being repeated in example.
Specifically, it is respectively provided with first-stage condenser C1, secondary condenser C2, one-level evaporator E1 and secondary evaporimeter E2
There is cryogen water tank.Wherein pass through the first cryogen between first-stage condenser C1 cryogen water tank and secondary condenser C2 cryogen water tank
Waterpipe is connected；Pass through the second cryogen between one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 cryogen water tank
Waterpipe is connected；Pass through the 3rd water as refrigerant between first-stage condenser C1 cryogen water tank and one-level evaporator E1 cryogen water tank
Pipeline be connected and/or first-stage condenser C1 cryogen water tank and secondary evaporimeter E2 cryogen water tank between by the 3rd cryogen
Waterpipe is connected.
Specifically, caused water as refrigerant passes through first with caused water as refrigerant in secondary condenser C2 in first-stage condenser C1
After cryogen waterpipe converges first-stage condenser C1 cryogen water tank, then by the 3rd cryogen waterpipe and pass through throttling arrangement
Enter absorption outside heat in secondary evaporimeter E2 after K decompressions to evaporate to form vapor, the water as refrigerant of no evaporating completely passes through
Second cryogen waterpipe enters in one-level evaporator E1 cryogen water tank, and by water as refrigerant backpass ductwork and is arranged on pipeline
On cryogenic fluid pump Ps water as refrigerant is delivered to respectively in one-level evaporator E1 and secondary evaporimeter E2 and carries out double evaporation-cooling, two level is steamed
The water as refrigerant not evaporated in hair device E2 is entered in one-level evaporator E1 by the second cryogen waterpipe.
7th implements：
Fig. 7 is refer to, Fig. 7 is a kind of the multistage absorption heat pump and heat exchanger that the embodiment of the utility model the 7th provides
The structural representation of group.
As shown in fig. 7, heat-exchange unit, the high-temperature water pipeline of heat-exchange unit and the water at low temperature of heat-exchange unit in the present embodiment
Pipeline is consistent with described in any embodiment in the first to the 5th embodiment, multistage absorption heat pump and multistage absorption heat
Water as refrigerant backpass ductwork in pump internal solution flow direction is different from the first to the 5th embodiment, and remaining is all consistent.In this implementation
Uniform portion is not being repeated in example.
Preferably, multistage absorption heat pump also includes：Multiple water as refrigerant backpass ductworks；Each water as refrigerant backpass ductwork includes
One input and an output end；Each output end is provided with a liquid distributor；The input of each water as refrigerant backpass ductwork
End is respectively communicated with the bottom per one-level in multi-stage evaporator E；The liquid distributor of the output end of each water as refrigerant backpass ductwork is set
Top in multi-stage evaporator E and input peer.
Specifically, in multi-stage evaporator E, one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 water as refrigerant
It is connected between case by the second cryogen waterpipe.Ensure the balance of cryogen water in double effect evaporator.One-level evaporator E1's
The bottom of cryogen water tank is provided with the input of water as refrigerant backpass ductwork, and the output end of water as refrigerant backpass ductwork passes through liquid distributor
The top being arranged in one-level evaporator E1；The bottom of secondary evaporimeter E2 cryogen water tank is provided with water as refrigerant backpass ductwork
Input, the output end of water as refrigerant backpass ductwork are arranged on the top in secondary evaporimeter E2 by liquid distributor.
Specifically, caused water as refrigerant passes through first with caused water as refrigerant in secondary condenser C2 in first-stage condenser C1
After cryogen waterpipe converges first-stage condenser C1 cryogen water tank, then by the 3rd cryogen waterpipe and pass through throttling arrangement
Enter after K decompressions in one-level evaporator E1.Water as refrigerant in one-level evaporator E1 absorbs outside heat and evaporates to form vapor, does not have
The water as refrigerant for having evaporating completely enters in one-level evaporator E1 cryogen water tank, and by water as refrigerant backpass ductwork and is arranged on
Water as refrigerant is delivered in one-level evaporator E1 by the first cryogenic fluid pump Ps1 on pipeline carries out double evaporation-cooling；In secondary evaporimeter E2
Water as refrigerant absorb outside heat evaporate to form vapor, without evaporating completely water as refrigerant enter secondary evaporimeter E2 cryogen
In water tank, and water as refrigerant is delivered to by two level by water as refrigerant backpass ductwork and the second cryogenic fluid pump Ps2 being arranged on pipeline
Double evaporation-cooling is carried out in evaporator E2.
8th implements：
Fig. 8 is refer to, Fig. 8 is a kind of the multistage absorption heat pump and heat exchanger that the embodiment of the utility model the 8th provides
The structural representation of group.
As shown in figure 8, heat-exchange unit, the high-temperature water pipeline of heat-exchange unit and the water at low temperature of heat-exchange unit in the present embodiment
Pipeline is consistent with described in any embodiment in the first to the 5th embodiment, multistage absorption heat pump and multistage absorption heat
The 3rd cryogen waterpipe and water as refrigerant backpass ductwork in pump internal solution flow direction is different from the first to the 5th embodiment, remaining
It is all consistent.Uniform portion is not being repeated in the present embodiment.
Preferably, multistage absorption heat pump also includes：Multiple water as refrigerant backpass ductworks；Each water as refrigerant backpass ductwork includes
One input and an output end；Each output end is provided with a liquid distributor；The input of each water as refrigerant backpass ductwork
End is respectively communicated with the bottom per one-level in multi-stage evaporator E；The liquid distributor of the output end of each water as refrigerant backpass ductwork is set
Top in multi-stage evaporator E and input peer.
Specifically, in multi-stage evaporator E, one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 water as refrigerant
It is connected between case by the second cryogen waterpipe.Ensure the balance of cryogen water in double effect evaporator.One-level evaporator E1's
The bottom of cryogen water tank is provided with the input of water as refrigerant backpass ductwork, and the output end of water as refrigerant backpass ductwork passes through liquid distributor
The top being arranged in one-level evaporator E1；The bottom of secondary evaporimeter E2 cryogen water tank is provided with water as refrigerant backpass ductwork
Input, the output end of water as refrigerant backpass ductwork are arranged on the top in secondary evaporimeter E2 by liquid distributor.
Specifically, it is respectively provided with first-stage condenser C1, secondary condenser C2, one-level evaporator E1 and secondary evaporimeter E2
There is cryogen water tank.Wherein pass through the first cryogen between first-stage condenser C1 cryogen water tank and secondary condenser C2 cryogen water tank
Waterpipe is connected；Pass through the second cryogen between one-level evaporator E1 cryogen water tank and secondary evaporimeter E2 cryogen water tank
Waterpipe is connected；Pass through the 3rd water as refrigerant between first-stage condenser C1 cryogen water tank and one-level evaporator E1 cryogen water tank
Pipeline be connected and/or first-stage condenser C1 cryogen water tank and secondary evaporimeter E2 cryogen water tank between by the 3rd cryogen
Waterpipe is connected.
Specifically, caused water as refrigerant passes through first with caused water as refrigerant in secondary condenser C2 in first-stage condenser C1
After cryogen waterpipe converges first-stage condenser C1 cryogen water tank, then by the 3rd cryogen waterpipe and pass through throttling arrangement
Enter after K decompressions in secondary evaporimeter E2.Water as refrigerant in one-level evaporator E1 absorbs outside heat and evaporates to form vapor, does not have
The water as refrigerant for having evaporating completely enters in one-level evaporator E1 cryogen water tank, and by water as refrigerant backpass ductwork and is arranged on
Water as refrigerant is delivered in one-level evaporator E1 by the first cryogenic fluid pump Ps1 on pipeline carries out double evaporation-cooling；In secondary evaporimeter E2
Water as refrigerant absorb outside heat evaporate to form vapor, without evaporating completely water as refrigerant enter secondary evaporimeter E2 cryogen
In water tank, and water as refrigerant is delivered to by two level by water as refrigerant backpass ductwork and the second cryogenic fluid pump Ps2 being arranged on pipeline
Double evaporation-cooling is carried out in evaporator E2.
A kind of multistage absorption heat pump of the utility model and heat-exchange unit, by the way that absorption heat pump is arranged into multistage suction
Receipts formula heat pump, it includes multi-stage generator, multi-stage condensing device, multistage absorption device and multi-stage evaporator.By multistage absorption heat
Pump, water water- to-water heat exchanger, high-temperature water pipeline and low temperature water lines form heat-exchange unit, realize and difference is utilized on different series
The high-temperature water and water at low temperature of temperature carry out indirect heat exchange, reduce the temperature difference of heat exchange, it is achieved thereby that the cascade utilization of the energy,
In the case that high temperature coolant-temperature gage is certain, the supply water temperature of water at low temperature can be further lifted, or further reduce high-temperature water
Return water temperature, realize the bigger supply backwater temperature difference of high-temperature water.In addition, unit has carried out modularization and compact designed, reduce
The volume and floor space of absorption heat exchange unit, is more beneficial for the popularization of great temperature difference heat supply technology.Therefore the utility model
The multistage absorption heat-exchange unit of offer, there is very strong practicality and wide applicability.
It should be appreciated that above-mentioned embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, without forming to limitation of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the utility model.In addition,
The appended claims for the utility model are intended to fall into scope and border or this scope and border
Whole in equivalents changes and modifications example.
Claims (13)
- A kind of 1. multistage absorption heat pump, it is characterised in that including：Multi-stage generator (G), multi-stage condensing device (C), multistage absorption device (A) and multi-stage evaporator (E)；The multi-stage generator (G) is equal with the series of the multi-stage condensing device (C), the multi-stage generator (G) with it is described more It is connected between the corresponding series of level condenser (C)；The multistage absorption device (A) is equal with the series of the multi-stage evaporator (E), the multistage absorption device (A) with it is described more It is connected between the corresponding series of level evaporator (E).
- 2. multistage absorption heat pump according to claim 1, in addition to:Multiple concentrated solution conveyance conduits and be arranged on it is each The liquid distributor of the output end of concentrated solution conveyance conduit；The input of each concentrated solution conveyance conduit connects the wherein one-level of the multi-stage generator (G), and its output end connects Lead to the wherein one-level of the multistage absorption device (A).
- 3. multistage absorption heat pump according to claim 2, in addition to：Multiple weak solution conveyance conduits and be arranged on it is each The liquid distributor of the output end of weak solution conveyance conduit；The input of each weak solution conveyance conduit connects the wherein one-level of the multistage absorption device (A), and its output end connects Lead to the wherein one-level of the multi-stage generator (G).
- 4. multistage absorption heat pump according to claim 3, in addition to：Multiple solution heat exchangers (H)；It is each described molten Liquid heat exchanger (H) is arranged on a weak solution conveyance conduit and a concentrated solution conveyance conduit；The solution heat exchanger (H) is used in the concentrated solution in the weak solution conveyance conduit and the weak solution pipeline Weak solution carries out heat exchange.
- 5. multistage absorption heat pump according to claim 3, wherein, it is provided with each weak solution conveyance conduit molten Liquid pump (Pr), the solution pump (Pr) are used to provide power for the circulation of the weak solution in the weak solution conveyance conduit.
- 6. according to the multistage absorption heat pump described in claim any one of 1-5, wherein,Cryogen water tank is set in every grade of the multi-stage condensing device (C)；Water as refrigerant is set in every grade of the multi-stage evaporator (E) Case；The cryogen water tank is used to store the water as refrigerant not evaporated in the multi-stage evaporator (E)；Cryogen water tank between the adjacent series of the multi-stage condensing device (C) is connected by the first cryogen waterpipe；It is described more Cryogen water tank between the adjacent series of level evaporator (E) is connected by the second cryogen waterpipe；The multi-stage condensing device (C) Cryogen water tank between the multi-stage evaporator (E) is connected by the 3rd cryogen waterpipe.
- 7. multistage absorption heat pump according to claim 6, wherein,Throttling arrangement (K) is provided with the 3rd cryogen waterpipe；The throttling arrangement (K) is used for the 3rd water as refrigerant Water as refrigerant in pipeline carries out expenditure and pressure.
- 8. multistage absorption heat pump according to claim 6, in addition to：Water as refrigerant backpass ductwork；The water as refrigerant loopback Pipeline includes an input and multiple output ends；Each output end is provided with a liquid distributor；The input of the water as refrigerant backpass ductwork connects the bottom of the multi-stage evaporator (E)；The liquid distributor of each output end of the water as refrigerant backpass ductwork is arranged in every grade of the multi-stage evaporator (E) Top.
- 9. multistage absorption heat pump according to claim 6, in addition to：Multiple water as refrigerant backpass ductworks；It is each described cold Agent water backpass ductwork includes an input and an output end；Each output end is provided with a liquid distributor；The input of each water as refrigerant backpass ductwork is respectively communicated with the bottom in the multi-stage evaporator (E) per one-level；The liquid distributor of the output end of each water as refrigerant backpass ductwork is arranged on the multi-stage evaporator (E) and input is same Top in level.
- 10. the multistage absorption heat pump according to any one of claim 8-9, wherein, on the water as refrigerant backpass ductwork It is additionally provided with cryogenic fluid pump (Ps)；The cryogenic fluid pump (Ps) is used to provide for the circulation of the water as refrigerant in the water as refrigerant backpass ductwork Power.
- 11. a kind of heat-exchange unit, it is characterised in that including any multistage absorption heat pump in claim 1-10, also wrap Include water water- to-water heat exchanger (EX), high-temperature water pipeline and low temperature water lines；The high-temperature water pipeline passes sequentially through the multi-stage generator (G), the water water- to-water heat exchanger (EX) and the multistage evaporation Device (E), to cause the water in the high-temperature water pipeline to cool；The low temperature water lines include water water- to-water heat exchanger branch road and heat pump branch road；The water water- to-water heat exchanger branch road is by the water water- to-water heat exchanger, to cause the water in the water water- to-water heat exchanger branch road to heat up.
- 12. heat-exchange unit according to claim 11, wherein,The heat pump branch road passes sequentially through the multistage absorption device (A), the multi-stage condensing device (C), to cause the heat pump branch Water heating in road.
- 13. heat-exchange unit according to claim 11, wherein,The heat pump branch road includes：Absorber bypass, condenser bypass；The absorber bypass passes through the multistage absorption device (A), to cause the water in the absorber bypass to heat up；The condenser bypass is by the multi-stage condensing device (C), to cause the water in the condenser bypass to heat up.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534570A (en) * | 2018-05-28 | 2018-09-14 | 同方节能工程技术有限公司 | A kind of absorption big temperature difference heat-exchange unit |
| CN108954911A (en) * | 2017-05-23 | 2018-12-07 | 北京华源泰盟节能设备有限公司 | A kind of multistage absorption heat pump and heat-exchange unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110030758B (en) * | 2019-04-30 | 2024-08-20 | 清华大学 | Multistage high-efficiency large-temperature-difference absorption heat pump and absorption heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182962B (en) * | 2007-11-25 | 2010-06-02 | 李华玉 | Composite absorption heat pump |
| CN101261054A (en) * | 2007-12-29 | 2008-09-10 | 清华大学 | Great temperature rising absorption type heat pump units |
| CN101329117B (en) * | 2008-07-23 | 2011-06-22 | 北京华清泰盟科技发展有限公司 | Integral type absorption type heat exchange machine unit |
| CN101650095B (en) * | 2009-09-03 | 2011-11-09 | 清华大学 | Multistage absorption refrigerating/heat pump unit |
| CN101666563B (en) * | 2009-09-11 | 2012-05-23 | 北京华源泰盟节能设备有限公司 | Multi-stage generation absorption heat pump and refrigerating machine set |
| CN102679612B (en) * | 2012-05-14 | 2014-07-30 | 李华玉 | Fractional condensation third-class absorption type heat pump |
| CN104697022A (en) * | 2013-12-05 | 2015-06-10 | 湖南运达节能科技有限公司 | Three-level evaporation absorption heat pump type heat supply unit |
| CN104329826B (en) * | 2014-08-28 | 2016-08-17 | 清华大学 | The vertical big temperature difference of multistage of a kind of double-barrel structure absorbs machine |
| CN108954911B (en) * | 2017-05-23 | 2023-07-25 | 北京华源泰盟节能设备有限公司 | Multistage absorption heat pump and heat exchange unit |
-
2017
- 2017-07-31 CN CN201710641952.5A patent/CN108954911B/en active Active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954911A (en) * | 2017-05-23 | 2018-12-07 | 北京华源泰盟节能设备有限公司 | A kind of multistage absorption heat pump and heat-exchange unit |
| CN108534570A (en) * | 2018-05-28 | 2018-09-14 | 同方节能工程技术有限公司 | A kind of absorption big temperature difference heat-exchange unit |
| CN108534570B (en) * | 2018-05-28 | 2024-04-09 | 同方节能工程技术有限公司 | Absorption type large-temperature-difference heat exchanger unit |
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| CN108954911B (en) | 2023-07-25 |
| CN108954911A (en) | 2018-12-07 |
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