CN107388620A - A kind of complex type solar lithium bromide absorption type air conditioner system - Google Patents

A kind of complex type solar lithium bromide absorption type air conditioner system Download PDF

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Publication number
CN107388620A
CN107388620A CN201710853939.6A CN201710853939A CN107388620A CN 107388620 A CN107388620 A CN 107388620A CN 201710853939 A CN201710853939 A CN 201710853939A CN 107388620 A CN107388620 A CN 107388620A
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storage tank
water
solution
hot water
pump
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CN201710853939.6A
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Chinese (zh)
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CN107388620B (en
Inventor
陈健豪
白建波
高天马
王光清
章国芳
曹飞
夏旭
张志豪
丁洁
唐俊
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Hohai University Changzhou Campus
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Hohai University Changzhou Campus
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00Machines, plants or systems, using particular sources of energy
    • F25B27/002Machines, plants or systems, using particular sources of energy using solar energy
    • F25B27/007Machines, plants or systems, using particular sources of energy using solar energy in sorption type systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The invention discloses a kind of complex type solar lithium bromide absorption type air conditioner system, and hot-water return is formed by solar thermal collector, heat pump, generator and hot water storage tank;Solution loop is formed by absorber, weak solution storage tank, solution pump, solution heat exchanger, generator and concentrated solution storage tank;By cooling tower, cooling water pump, absorber and condenser form chilled(cooling) water return (CWR);By evaporator, chilled water pump and air-treatment unit form chilled water circuit;Refrigerant loop is formed by evaporator, absorber, weak solution storage tank, solution pump, solution heat exchanger, generator, condenser, cryogen storage tank and choke valve;Some valves are provided between some loops.Complex type solar lithium bromide absorption type air conditioner system provided by the invention, heat pump energy-conserving technology is combined with solar energy techniques, the unstability of single energy resource supply can be reduced, it is possible to achieve the function of refrigeration, heating and supplying hot water.

Description

A kind of complex type solar lithium bromide absorption type air conditioner system
Technical field
The present invention relates to a kind of complex type solar lithium bromide absorption type air conditioner system, belong to field of photovoltaic technology.
Background technology
Today of energy-conserving and environment-protective is being advocated, using the absorption type air conditioning system of solar energy thermal drivers increasingly by people's Concern.But the influence of the performance climate environment of conventional solar energy absorption type air conditioning system is bigger, cause it upper in application Receive certain limitation.It is mainly shown as:When not having enough solar radiations at night and rainy days, unit can not be realized Normal operation.And plus auxiliary mode of heating, other energy can be consumed again, be unable to reach the purpose of environmental protection.Meanwhile the conventional sun The problems such as also there is unit starting time length in energy absorption type air-conditioner unit, energy storage water tank volume is big.
The content of the invention
The defects of in order to overcome prior art, the present invention provide a kind of complex type solar lithium bromide absorption type air conditioner system System, can combine solar energy techniques and heat pump techniques, rational in infrastructure, and the startup time is short, energy storage equipment small volume.
A kind of complex type solar lithium bromide absorption type air conditioner system, including solar thermal collector, heat pump, accumulation of heat water Case, startup water tank, absorber, generator, concentrated solution storage tank, weak solution storage tank, solution heat exchanger, evaporator, condenser are cold Agent storage tank, cooling tower and air-treatment unit, wherein,
The solar thermal collector output end connects one end of heat pump by the first Unidirectional solenoid valve, and the heat pump is another One end connects the first input end of the first three-way magnetic valve, and the output end of first triple valve and one end of generator connect, The other end of the generator connects with the first input end of the second three-way magnetic valve and the input of the 7th Unidirectional solenoid valve respectively Connect, the output end connection hot water storage tank water inlet of second three-way magnetic valve, the hot water storage tank delivery port passes through hot water water Pump connects solar thermal collector input, forms hot water circulation loop, and the output end connection of the 7th Unidirectional solenoid valve starts Water tank inlet, the startup water outlet of water tank connection hot water water pump is in parallel with hot water storage tank, first three-way magnetic valve Second input connects the output end of the second Unidirectional solenoid valve and the second input of the second three-way magnetic valve by pipeline respectively, The input of second Unidirectional solenoid valve is connected with solar thermal collector output end;
The generator, condenser, cryogen storage tank, choke valve, evaporator, absorber, the 5th Unidirectional solenoid valve, weak solution storage Tank, solution pump, solution heat exchanger are linked in sequence by pipeline, form refrigerant loop, and described concentrated solution storage tank one end connects Solution heat exchanger is connect, the other end connects absorber by the 6th Unidirectional solenoid valve, and forms parallel-connection structure with weak solution storage tank;
Cooling water in the cooling tower flows through absorber and condenser in order by cooling water pump, and passes through the 3rd unidirectional electricity Magnet valve flows into cooling tower, forms chilled(cooling) water return (CWR);
Air conditioner cold water in the air-treatment unit flows through evaporator by pipeline, and flows back to sky by the 4th Unidirectional solenoid valve Gas disposal unit, form air conditioner cold water loop.
Preferably, the hot water storage tank and startup water tank use thermal stratification structure.
Preferably, the cryogen in the cryogen storage tank is water, and solution is bromine in the concentrated solution storage tank and weak solution storage tank Change lithium solution.
Beneficial effect:A kind of complex type solar lithium bromide absorption type air conditioner system provided by the invention, with prior art Compare, conventional solar energy lithium bromide absorption type air conditioner system and heat pump energy-saving system will be combined, reduce single energy resource supply Unstability, it is possible to achieve refrigeration, heating and supplying hot water function.The system becomes water accumulation of energy by original water accumulation of energy The way of energy storage being combined with solution potential energy storage, because the device volume of latent heat accumulator is the 1/ of traditional water energy storage equipment volume 5, the volume of energy storage equipment can be greatly reduced.Meanwhile the startup water tank less than the half volume of hot water storage tank one is added, it ensure that The quick startup of absorption installation.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of the present invention.
In figure:1-solar thermal collector, 2-heat pump, 3-generator, 4-condenser, 5-cryogen storage tank, 6- Evaporator, 7-cooling tower, 8-cooling water pump, 9-chilled water pump, 10-air-treatment unit, 11-absorber, 12-dilute molten Liquid storage tank, 13-solution pump, 14-solution heat exchanger, 15-concentrated solution storage tank, 16-hot water storage tank, 17-start water tank, 18-hot water water pump, the Unidirectional solenoid valves of F1- first, the Unidirectional solenoid valves of F2- second, the three-way magnetic valves of F3- first, F4- the 3rd are single To magnetic valve, F5- choke valves, the Unidirectional solenoid valves of F6- the 4th, the single-phase electricity magnet valves of F7- the 5th, the single-phase electricity magnet valves of F8- the 6th, F9- Second three-way magnetic valve, the Unidirectional solenoid valves of F10- the 7th.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection Scope.
A kind of complex type solar lithium bromide absorption type air conditioner system, including solar thermal collector 1, heat pump 2, accumulation of heat Water tank 16, startup water tank 17, absorber 11, generator 3, concentrated solution storage tank 14, weak solution storage tank 12, solution heat exchanger 14, Evaporator 6, condenser 4, cryogen storage tank 5, cooling tower 7 and air-treatment unit 10, wherein,
The output end of solar thermal collector 1 passes through one end of the first Unidirectional solenoid valve F1 connections heat pump 2, the heat pump system 2 other ends of uniting connect the first three-way magnetic valve F3 first input end, output end and the generator 3 of the first triple valve F3 One end connects, the other end of the generator 3 first input end and the 7th unidirectional electromagnetism with the second three-way magnetic valve F9 respectively Valve F10 input connection, the output end connection water inlet of hot water storage tank 16 of the second three-way magnetic valve F9, the accumulation of heat water The delivery port of case 16 connects the input of solar thermal collector 1 by hot water water pump 18, forms hot water circulation loop, the described 7th is unidirectional Magnetic valve F10 output end connection starts the water inlet of water tank 17, the startup water tank 17 delivery port connection hot water water pump 18, with storage Boiler 16 is in parallel, and the second input of the first three-way magnetic valve F3 connects the second Unidirectional solenoid valve F2 by pipeline respectively Output end and the second three-way magnetic valve F9 the second input, the input of the second Unidirectional solenoid valve F2 and solar energy collection The hot output end of device 1 connection;
The generator 3, condenser 4, cryogen storage tank 5, choke valve F5, evaporator 6, absorber 11, the 5th Unidirectional solenoid valve F7, Weak solution storage tank 12, solution pump 13, solution heat exchanger 14 are linked in sequence by pipeline, form refrigerant loop, described dense The one end of solution reservoir 15 connect solution heat exchanger 14, the other end by the 6th Unidirectional solenoid valve F8 connections absorber 11, and with Weak solution storage tank 12 forms parallel-connection structure;
Cooling water in the cooling tower 7 flows through absorber 11 and condenser 4 in order by cooling water pump 8, and passes through the 3rd Unidirectional solenoid valve F4 flows into cooling tower 7, forms chilled(cooling) water return (CWR);
Air conditioner cold water in the air-treatment unit 10 flows through evaporator 6 by pipeline, and passes through the 4th Unidirectional solenoid valve F6 Air-treatment unit 10 is flowed back to, forms air conditioner cold water loop.
Preferably, the hot water storage tank 16 and startup water tank 17 use thermal stratification structure.
Preferably, the cryogen in the cryogen storage tank 5 is water, solution in the concentrated solution storage tank 15 and weak solution storage tank 12 It is lithium-bromide solution.
The concrete operating principle of the present invention is as follows:
1st, it is quick to start:The system entry condition of the present invention is that the hot water outlet temperature of solar thermal collector 1 reaches refrigeration machine most Low start-up temperature, therefore, to realize quick startup, add the startup water tank that volume only has hot water storage tank half.Start circulation System generator, starts water tank and hot water water pump composition by solar thermal collector.
When starting circulation, the 7th Unidirectional solenoid valve F10 connection generators 3, the second Unidirectional solenoid valve F2 is opened, the first threeway Magnetic valve F3 does not connect heat pump, and hot water water pump 18 absorbs light after the water for starting water tank 17 is transferred into solar thermal collector 1 Heat heating, then flows into generator 3, after water temperature reaches absorption installation start-up temperature, generator 3 works.During this state, F1 Close, F3 connection F2 and generator 3, F9 are closed, and F10 connects generator 3 and starts water tank 17, when unit completes startup optimization one After the section time, F9 connection generators 3 and hot water storage tank 16 are opened, while F10 is closed.
When hot water temperature is difficult to reach start-up temperature, opens the first three-way magnetic valve F3 connection heat pumps 2 and occur Device 3, Unidirectional solenoid valve F1 is opened, during this state, F9 is closed, and is opened F10 connection generators 3 and is started water tank 17.
2nd, solution latent heat accumulator:Start required lowest temperature when the hot water outlet temperature of solar thermal collector 1 reaches refrigeration machine When spending, solution pump 13 squeezes into the weak solution in weak solution storage tank 12 in generator 3 after solution heat exchanger 14, weak solution warp Hot water heating, gas-liquid separation occurs, the concentrated solution for isolating vapor flows into concentrated solution storage tank 15, and vapor flows into condenser 4 Condensation, become aqueous water and flow into cryogen storage tank 5, realize that solar energy is converted into the accumulation of energy process of solution potential.
3rd, cooling in summer:When room needs cooling, according to the size of load, the water in cryogen storage tank 5 enters evaporator 6 Middle evaporation endothermic, makes air conditioning water cool, and the chilled water pump 9 of the chilled water after cooling is input to air-treatment unit 10 In, regulation gets in wind pushing temperature, realizes the cooling in room.Water as refrigerant heat up simultaneously after is inhaled by concentrated solution in absorber 11 Receipts form weak solution and enter weak solution storage tank 12, and weak solution squeezes into generator 3 by solution pump 13 after solution heat exchanger 14, hair Raw gas-liquid separation, concentrated solution are flowed back in absorber 11 through concentrated solution storage tank 15, and cryogen storage tank is flowed back to after the condensed cooling of vapor 5.Realize kind of refrigeration cycle.
4th, refrigeration duty and sun supply are balanced:In synchronization, the solar energy optical-thermal collected by solar thermal collector 1 is through inhaling The cold and room load that receipts formula unit is converted to may be inconsistent.When the liquid inventory for flowing through generator 3 is more than absorber Liquid inventory when, unnecessary concentrated solution is stored in concentrated solution storage tank 15.Conversely, deficiency is then supplemented by concentrated solution storage tank 15 Part.System balances refrigeration duty and the difference of sun supply in this way.
5th, night summer cooling:The cooling in room is carried by the solution potential being stored in concentrated solution storage tank to change completely For.Concentrated solution is discharged into absorber 11 by concentrated solution storage tank 15, absorbs the vapor refrigeration volatilized in evaporator(Evaporator Middle water as refrigerant is provided by cryogen storage tank 5), the weak solution after absorption preserves into weak solution storage tank 12.
6th, winter heating:On daytime, the relatively low water of temperature is heated by solar thermal collector 1 in hot water storage tank, when temperature height To certain value, heat pump 2 is opened, the generator 3 and condenser 4 for making system are started working.Caused concentrated solution is stored in dense In solution reservoir 15, heat supply of the condensation heat as room, now miscellaneous part, cryogen storage tank 5, evaporator 6, cooling tower 7 are empty Gas disposal unit 10, the grade of absorber 11 do not work;At night, the heating in room is first supplied by hot water storage tank 16, when hot water in water tank When temperature is less than design load, start heat pump 2, improve hot water water temperature.
7th, season in spring and autumn provides hot water:Mainly by solar thermal collector, hot water storage tank and hot water water pump composition.When sun spoke When photoing badly, heat pump can be opened, now, F9 is connected with F2.
The effect of heat exchanger is to improve the efficiency of BrLi chiller in the present invention, is come out from weak solution storage tank dilute molten Liquid temperature degree is relatively low, in order that gas-liquid separation, which occurs, in it in generator is converted into concentrated solution, it is necessary to heat temperature raising, and simultaneously from The concentrated solution temperature that generator comes out is higher, in order to absorb refrigerant vapor(Vapor), it is necessary to cool.Pass through heat exchange Device weak solution is heated, and concentrated solution is cooled down, it is possible to reduce generator institute calorific requirement, improves efficiency.In weak solution storage tank Weak solution flow through heat exchanger and enter generator, after gas-liquid separation, refrigerant vapor in generator(Vapor)It is cold into condenser But water is cooled into, the concentrated solution of evaporation and concentration flows through heat exchanger and enters concentrated solution storage tank, belongs to conventional technical means, so specifically Structure does not add detailed description.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention. Two kinds of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (3)

1. a kind of complex type solar lithium bromide absorption type air conditioner system, it is characterised in that including solar thermal collector, heat pump system System, hot water storage tank, startup water tank, absorber, generator, concentrated solution storage tank, weak solution storage tank solution heat exchanger, evaporator, Condenser, cryogen storage tank, cooling tower and air-treatment unit, wherein,
The solar thermal collector output end connects one end of heat pump by the first Unidirectional solenoid valve, and the heat pump is another One end connects the first input end of the first three-way magnetic valve, and the output end of first triple valve and one end of generator connect, The other end of the generator connects with the first input end of the second three-way magnetic valve and the input of the 7th Unidirectional solenoid valve respectively Connect, the output end connection hot water storage tank water inlet of second three-way magnetic valve, the hot water storage tank delivery port passes through hot water water Pump connects solar thermal collector input, forms hot water circulation loop, and the output end connection of the 7th Unidirectional solenoid valve starts Water tank inlet, the startup water outlet of water tank connection hot water water pump is in parallel with hot water storage tank, first three-way magnetic valve Second input connects the output end of the second Unidirectional solenoid valve and the second input of the second three-way magnetic valve by pipeline respectively, The input of second Unidirectional solenoid valve is connected with solar thermal collector output end;
The generator, condenser, cryogen storage tank, choke valve, evaporator, absorber, the 5th Unidirectional solenoid valve, weak solution storage Tank, solution pump, solution heat exchanger are linked in sequence by pipeline, form refrigerant loop, and described concentrated solution storage tank one end connects Solution heat exchanger is connect, the other end connects absorber by the 6th Unidirectional solenoid valve, and forms parallel-connection structure with weak solution storage tank;
Cooling water in the cooling tower flows through absorber and condenser in order by cooling water pump, and passes through the 3rd unidirectional electricity Magnet valve flows into cooling tower, forms chilled(cooling) water return (CWR);
Air conditioner cold water in the air-treatment unit flows through evaporator by pipeline, and flows back to sky by the 4th Unidirectional solenoid valve Gas disposal unit, form air conditioner cold water loop.
2. a kind of complex type solar lithium bromide absorption type air conditioner system according to claim 1, it is characterised in that described Hot water storage tank and startup water tank use thermal stratification structure.
3. a kind of complex type solar lithium bromide absorption type air conditioner system according to claim 1, it is characterised in that described Cryogen in cryogen storage tank is water, and solution is lithium-bromide solution in the concentrated solution storage tank and weak solution storage tank.
CN201710853939.6A 2017-09-20 2017-09-20 Composite solar lithium bromide absorption type air conditioning system Active CN107388620B (en)

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CN201710853939.6A CN107388620B (en) 2017-09-20 2017-09-20 Composite solar lithium bromide absorption type air conditioning system
PCT/CN2017/116345 WO2019056604A1 (en) 2017-09-20 2017-12-15 Combined energy-based solar lithium bromide absorption trigeneration system

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CN108981229A (en) * 2018-08-09 2018-12-11 青岛理工大学 A kind of subway waste heat source heat pump system and its working method with auxiliary cold source
WO2019056604A1 (en) * 2017-09-20 2019-03-28 河海大学常州校区 Combined energy-based solar lithium bromide absorption trigeneration system
CN109654574A (en) * 2018-12-12 2019-04-19 湖南东尤水汽能热泵制造有限公司 A kind of air can be with solar energy tandem heat source heat pump unit
CN111692775A (en) * 2020-06-22 2020-09-22 国网综合能源服务集团有限公司 Lithium bromide absorption heat pump
CN113503657A (en) * 2021-06-17 2021-10-15 燕山大学 Solar auxiliary heat pump system integrating waste heat recovery and self-cleaning functions

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CN113503657B (en) * 2021-06-17 2022-03-22 燕山大学 Solar auxiliary heat pump system integrating waste heat recovery and self-cleaning functions

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