CN107869860A - A kind of first-class absorption type heat pump of solar energy auxiliary heating - Google Patents

A kind of first-class absorption type heat pump of solar energy auxiliary heating Download PDF

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Publication number
CN107869860A
CN107869860A CN201711084650.9A CN201711084650A CN107869860A CN 107869860 A CN107869860 A CN 107869860A CN 201711084650 A CN201711084650 A CN 201711084650A CN 107869860 A CN107869860 A CN 107869860A
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CN
China
Prior art keywords
heat
heat exchanger
condenser
water
regenerator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711084650.9A
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Chinese (zh)
Inventor
杨彩玲
郝兆龙
曹建喜
周海波
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Beijing Pioneer Energy Polytron Technologies Inc
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Beijing Pioneer Energy Polytron Technologies Inc
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Publication date
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Priority to CN201711084650.9A priority Critical patent/CN107869860A/en
Publication of CN107869860A publication Critical patent/CN107869860A/en
Pending legal-status Critical Current

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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
    • F25B30/00Heat pumps
    • F25B30/04Heat pumps of the sorption type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D12/00Other central heating systems
    • F24D12/02Other central heating systems having more than one heat source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/12Heat pump
    • F24D2200/126Absorption type heat pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/14Solar energy
    • 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
    • F25B2500/00Problems to be solved
    • F25B2500/05Cost reduction
    • 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
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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]

Abstract

The invention discloses a kind of first-class absorption type heat pump of solar energy auxiliary heating, the heat pump includes evaporator, condenser, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and boiler;Sewage will enter the condensed water heating evaporation of evaporator from condenser, and evaporator is connected with absorber;Absorber, heat exchanger and regenerator form heat-exchanging loop after being connected by lithium-bromide solution pipeline;Boiler is connected the regeneration for ensureing lithium-bromide solution in heat exchanger with regenerator by pipeline, and regenerator is connected with condenser;Heat medium water respectively enters absorber and condenser, absorber and condenser import solar thermal collector by unified after the temperature lifting of heat medium water respectively, solar thermal collector rises to the temperature of heat medium water after setting value the shell side inlet for being re-introduced into heat exchanger, outside heating water is heated to continue to circulate in pipeline after setting value by the heat medium water after heating in heat exchanger, and heating water is exported for users to use by heat exchanger shell pass outlet.

Description

A kind of first-class absorption type heat pump of solar energy auxiliary heating
Technical field
The present invention relates to the oil extraction-generated waste water technical field of waste heat utilization of petroleum industry, and in particular to one kind is auxiliary using solar energy Help the first kind absorption type heat of mixing pump of heating.
Background technology
At present, the mined water content in crude oil of oil field at home is very high (typically more than 90%), and crude oil is from ground Under produce after be aggregated into the multi-purpose station in region by terminal on the way dewater treatment carried out to crude oil.Domestic diverse geographic location Crude oil be not quite similar due to physical property, so handling process is also not exclusively the same.But main process is the methods of passing through sedimentation Water-oil separating is realized, the moisture content of crude oil is reduced to less than 0.03%.
In oil water separation process, the sewage after separation still has certain heat (38~40 DEG C), after simple process Discharge or be recycled into oil well after being aggregated into sewage treatment plant's processing, be if to the heat energy in sewage effectively utilize One kind of heat energy is wasted.
At present, it is directly to use the direct temperature raising of compression heat pump using low grade heat energy method one kind, this method really may be used To utilize the part of waste heat, but power consumption is very big, and because electricity is secondary energy sources, grade is higher, is used directly to lift potential temperature Economy is very improper.Another method is to extract the heat in reinjected water, and industry is used for after being heated up by absorption heat pump Production and civil heating, absorption heat pump although basic not consuming electric power, but because the limitation temperature rise of its technical principle is limited, it is impossible to The technology is promoted on a large scale.
Absorption heat pump is divided into first-class absorption type heat pump and second-kind absorption-type heat pump again.First-class absorption type heat pump is again Referred to as increase heating type heat pump, it is to reclaim low temperature exhaust heat heat by driving heat source of heat of high temperature, then output can in the form of middle potential temperature With heat;Second-kind absorption-type heat pump is also known as temperature-increasing type heat pump, and it is the which part heat using medium temperature waste heat as driving heat source Heat can be used with high temperature form output, remaining is discharged into environment in the form of more low temperature position.
The content of the invention
In view of this, the invention provides a kind of first-class absorption type heat pump of solar energy auxiliary heating, ensureing to invest In the case of cost increase rate very little, operating cost is reduced more than 50%, significantly shortens payoff period, there is tremendous economic effect Benefit.Overcome the shortcomings that prior art energy consumption is big, costly, using the less energy plus solar energy can obtain it is more can profit Heat energy.
A kind of first-class absorption type heat pump of solar energy auxiliary heating, the heat pump include evaporator, condenser, heat exchanger, Solar thermal collector, absorber, heat exchanger, regenerator and boiler;
Outside sewage is discharged after entering the tube side heat exchange of evaporator, and the shell side inlet of evaporator is connected with condenser, dirty The condensed water heating evaporation that water will enter in evaporator shell side from condenser, the shell-side outlet of evaporator are connected with absorber;Institute State absorber, heat exchanger forms heat-exchanging loop after being connected with regenerator by lithium-bromide solution pipeline;Boiler leads to regenerator The regeneration that pipeline connection ensures lithium-bromide solution in heat exchanger is crossed, regenerator is connected by water vapour pipeline with condenser;
Heat medium water respectively enters absorber and condenser, and the temperature of heat medium water is lifted 5~8 by absorber and condenser respectively Unified after DEG C to import solar thermal collector, solar thermal collector is re-introduced into heat exchanger after the temperature of heat medium water is risen into setting value Outside heating water is heated to continue to circulate in pipeline after setting value by shell side inlet, the heat medium water after heating in heat exchanger, Heating water is exported for users to use by heat exchanger shell pass outlet.
Further, pump and choke valve, purpose are respectively equipped with pipeline in parallel between the regenerator and heat exchanger It is the lithium-bromide solution between regenerator and heat exchanger is formed circulation.
Further, pump and choke valve are sequentially connected on the pipeline between the evaporator and condenser, it is therefore an objective to will be cold Condensed water in condenser is pumped into evaporator.
Further, the temperature of the outside sewage is 38~45 DEG C, and temperature of the sewage after evaporator heat exchange is down to 28 ~35 DEG C.
Beneficial effect:
1st, absorption heat pump is combined by the present invention with two kinds of technologies of solar energy heating, using absorption heat pump technology as base Plinth, coordinate the solar thermal collector auxiliary gain of heat, heat required potential temperature.Ensureing the situation of cost of investment increase rate very little Under, operating cost is reduced more than 50%, significantly shortens payoff period, there is great economic benefit.
2nd, the present invention has good operating characteristics, very strong followability and self-balance ability, when external process parameter is (as given up Temperature, pressure, hot water inlet's temperature and the flow of thermal source, circulating cooling water temperature etc.) when remaining unchanged, heat pump can enter steady quickly Determine state, and run very steady.Once external process parameter changes, heat pump inner parameter (such as lithium-bromide solution it is dense Degree, evaporating pressure, condensing pressure etc.) new equalization point will be automatically adjusted to rapidly and enter stable state, without operating personnel Make any regulation.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The invention provides a kind of first-class absorption type heat pump of solar energy auxiliary heating, heat pump includes evaporator, condensation Device, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and boiler;
Outside sewage enters the tube side of evaporator, and the shell side inlet of evaporator is connected by pipeline with condenser, pipeline Upper installation pump and choke valve, the shell-side outlet of evaporator are connected by steam pipework with absorbing, absorber, heat exchanger and regeneration Device forms heat-exchanging loop after being connected by lithium-bromide solution pipeline, and pump is respectively equipped with the pipeline between regenerator and heat exchanger And choke valve;Boiler is connected the regeneration for ensureing lithium-bromide solution in heat exchanger with regenerator by pipeline, and regenerator is steamed by water Vapor pipeline is connected with condenser;Heat medium water respectively enters absorber and condenser, and absorber and condenser are respectively by heat medium water Temperature is unified after lifting 5~8 DEG C to import solar thermal collector, and solar thermal collector rises to the temperature of heat medium water after 70 DEG C to be drawn again Enter the shell side inlet of heat exchanger, outside heating water is promoted to 65 DEG C from 50 DEG C by 70 DEG C of heat medium water simultaneously, heat medium water itself temperature Spend after being down to 50 DEG C and thermal cycle is carried out by shell-side outlet again.
Operation principle is as shown in Figure 1:First, 38~45 DEG C of oilfield sewage 20 enters evaporator tube side, and its heat is used To heat the condensed water 9 of shell side, the sewage 21 after heat exchange goes out evaporator temperature for 28~35 DEG C;Evaporator shell side is to carry out autocondensation The self-circulating water mixing liquid of condensed water 9 and evaporator of the device after choke valve throttling cooling, after distribution grid cloth liquid, Even flows downward along pipe outer wall falling liquid film, progressively reaches saturation shape by heat exchange and starts to evaporate, and produces steam 8 and enters absorber Absorbed, unevaporated water is back to evaporator shell side porch, and the self-circulating water as evaporator continues next heating and followed Ring.
Lithium bromide concentrated solution 5 from solution heat exchanger, unsaturated state is in when having just enter into absorber, is inhaled reaching Receive above the distribution grid of device and in the very short time of landing, absorb a large amount of water vapours 8 and reach saturation, in the top shell side of absorber An obvious temperature rise area is formed, turns into the highest temperature zone of whole absorber, subsequent solution gas-liquid two-phase is in falling liquid film process In be in dynamic equilibrium all the time, conducted heat by mass transfer enhancement, solution temperature decline, concentration reduce, it is dilute molten to eventually form lithium bromide Liquid 6 is regenerated after entering solution heat exchanger heat exchange into regenerator;In absorber tube for from heat exchanger~50 DEG C of heat Matchmaker's water 12, by absorber with managing outer high temperature lithium-bromide solution countercurrent flow, obtain the heat medium water of design code temperature rise~55 DEG C 13, the heat medium water, which is admitted to solar thermal collector, to be continued to be heated.
Lithium bromide weak solution 6 enters after heat exchanger exchanges heat with the lithium bromide concentrated solution 4 after regenerator regeneration and entered Regenerator is regenerated;Lithium bromide weak solution 7 after being exchanged heat by regenerator enters regenerator, from 85~90 DEG C of heat of boiler Cycle fluid 1 heats to it, and lithium bromide weak solution evaporates water vapour 3 and is concentrated during heating, after concentration Lithium bromide concentrated solution 4 be pumped to heat exchanger and exchanged heat with lithium bromide weak solution 6;After being exchanged heat with the dilute appearance liquid 7 of lithium bromide 80~85 DEG C of thermal cycle working medium 2 heats into boiler, is recycled into regenerator.
Steam 3 from regenerator enters condenser, and about 50 DEG C of heat medium waters 11 from heat exchanger are heated into about 55 DEG C, Heat medium water 14 after heating is mixed into solar heater, mixed heating agent with the heat medium water 13 after absorber heating Water 15 continues to be heated to about 70 DEG C, and about 70 DEG C of heat medium water 16 enters heat exchanger, and about 50 DEG C of heating water 19 is heated, It is heated to about 65 DEG C of heating water 18 and is admitted to heating network to be used for heat supply, about 70 DEG C of heat medium water 16 becomes about 50 DEG C after exchanging heat Heat medium water 11 continue to participate in cycle heat exchange.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention. Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's Within protection domain.

Claims (3)

1. a kind of first-class absorption type heat pump of solar energy auxiliary heating, it is characterised in that the heat pump includes evaporator, condensation Device, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and boiler;
Outside sewage is discharged after entering the tube side heat exchange of evaporator, and the shell side inlet of evaporator is connected with condenser, and sewage will The condensed water heating evaporation entered from condenser in evaporator shell side, the shell-side outlet of evaporator are connected with absorber;The suction Receive device, heat exchanger forms heat-exchanging loop after being connected with regenerator by lithium-bromide solution pipeline;Boiler passes through pipe with regenerator Road connection ensures the regeneration of lithium-bromide solution in heat exchanger, and regenerator is connected by water vapour pipeline with condenser;
Heat medium water respectively enters absorber and condenser, after the temperature of heat medium water is lifted 5~8 DEG C by absorber and condenser respectively Unified to import solar thermal collector, solar thermal collector rises to the temperature of heat medium water after setting value the shell side for being re-introduced into heat exchanger Outside heating water is heated to continue to circulate in pipeline after setting value, heated by entrance, the heat medium water after heating in heat exchanger Water is exported for users to use by heat exchanger shell pass outlet.
A kind of 2. first-class absorption type heat pump of solar energy auxiliary heating as claimed in claim 1, it is characterised in that it is described again Pump and choke valve are respectively equipped with pipeline in parallel, it is therefore an objective to make between regenerator and heat exchanger between raw device and heat exchanger Lithium-bromide solution formed circulation.
A kind of 3. first-class absorption type heat pump of solar energy auxiliary heating as claimed in claim 1 or 2, it is characterised in that institute State and be sequentially connected pump and choke valve on the pipeline between evaporator and condenser, it is therefore an objective to which the condensed water in condenser is pumped into steaming Send out in device.
CN201711084650.9A 2017-11-07 2017-11-07 A kind of first-class absorption type heat pump of solar energy auxiliary heating Pending CN107869860A (en)

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Application Number Priority Date Filing Date Title
CN201711084650.9A CN107869860A (en) 2017-11-07 2017-11-07 A kind of first-class absorption type heat pump of solar energy auxiliary heating

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Application Number Priority Date Filing Date Title
CN201711084650.9A CN107869860A (en) 2017-11-07 2017-11-07 A kind of first-class absorption type heat pump of solar energy auxiliary heating

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114824A (en) * 2018-07-10 2019-01-01 南京工程学院 It is suitble to north coal to change the high efficiency heat pump system of electricity
CN110044098A (en) * 2019-05-20 2019-07-23 天津商业大学 A kind of refrigeration system with lithium bromide absorption of wind-light-electricity joint driving
CN111351110A (en) * 2018-12-20 2020-06-30 大连民族大学 Solar energy supplied lithium bromide heat pump heat supply method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027616A (en) * 1988-08-09 1991-07-02 Yazaki Corporation Air-cooled absorption type cooling and heating apparatus
JP2000018757A (en) * 1998-07-07 2000-01-18 Tokyo Gas Co Ltd Cooler
CN101464067A (en) * 2008-11-26 2009-06-24 王宁和 Energy-saving and compact absorption type refrigerating machine
CN103954046A (en) * 2013-10-22 2014-07-30 山东大学 Solar radiator system
WO2016035936A1 (en) * 2014-09-04 2016-03-10 한국에너지기술연구원 Hybrid solar heat absorption cooling system
CN207585143U (en) * 2017-11-07 2018-07-06 北京拓首能源科技股份有限公司 A kind of first-class absorption type heat pump of solar energy auxiliary heating

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027616A (en) * 1988-08-09 1991-07-02 Yazaki Corporation Air-cooled absorption type cooling and heating apparatus
JP2000018757A (en) * 1998-07-07 2000-01-18 Tokyo Gas Co Ltd Cooler
CN101464067A (en) * 2008-11-26 2009-06-24 王宁和 Energy-saving and compact absorption type refrigerating machine
CN103954046A (en) * 2013-10-22 2014-07-30 山东大学 Solar radiator system
WO2016035936A1 (en) * 2014-09-04 2016-03-10 한국에너지기술연구원 Hybrid solar heat absorption cooling system
CN207585143U (en) * 2017-11-07 2018-07-06 北京拓首能源科技股份有限公司 A kind of first-class absorption type heat pump of solar energy auxiliary heating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114824A (en) * 2018-07-10 2019-01-01 南京工程学院 It is suitble to north coal to change the high efficiency heat pump system of electricity
CN109114824B (en) * 2018-07-10 2023-08-22 南京工程学院 High-efficiency heat pump system suitable for changing northern coal into electricity
CN111351110A (en) * 2018-12-20 2020-06-30 大连民族大学 Solar energy supplied lithium bromide heat pump heat supply method
CN110044098A (en) * 2019-05-20 2019-07-23 天津商业大学 A kind of refrigeration system with lithium bromide absorption of wind-light-electricity joint driving

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