CN206695431U - First class lithium bromide absorptive heat pump system with condensate recuperation of heat - Google Patents

First class lithium bromide absorptive heat pump system with condensate recuperation of heat Download PDF

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Publication number
CN206695431U
CN206695431U CN201720391358.0U CN201720391358U CN206695431U CN 206695431 U CN206695431 U CN 206695431U CN 201720391358 U CN201720391358 U CN 201720391358U CN 206695431 U CN206695431 U CN 206695431U
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heat
condensate
weak solution
hot water
working steam
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CN201720391358.0U
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毛洪财
王炎丽
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Shuangliang Eco Energy Systems Co Ltd
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Shuangliang Eco Energy Systems Co Ltd
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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
    • 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]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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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  • Sorption Type Refrigeration Machines (AREA)

Abstract

The first class lithium bromide absorptive heat pump system with condensate recuperation of heat is the utility model is related to, including first and second the first class lithium bromide absorptive heat pump with condensate recuperation of heat, heat pump includes：Generator, condenser, evaporator, absorber, solution heat exchanger, cryogen condensate heat regenerator, working steam condensate heat regenerator, hot water regulating valve and weak solution regulating valve.Waste heat water lines are connected in series first and second evaporator；Hot water line is connected in parallel to first and second absorber, first and second cryogen condensate heat regenerator, is connected in series second, one condenser after collecting again；Working steam is connected in parallel in first and second generator, and the utility model realizes that the working steam condensate of generator and the weak solution in weak solution branch pipe exchange heat.In the case of working steam pressure is relatively low, the middle warm water of higher temperature is made, unit can maximize, and comprehensive COP values improve, and heat pump investment and operating cost reduce, and realize the mixed economy and social benefit of energy-saving and emission-reduction.

Description

First class lithium bromide absorptive heat pump system with condensate recuperation of heat
Technical field
It the utility model is related to a kind of steam type first-class lithium bromide absorption type heat pump.Belong to technical field of refrigeration equipment.
Background technology
The hot water pipe nets such as China's winter heating, concentrated supply of heating in the city, production technology central heating use under many circumstances Steam power plant's cogeneration central heating pattern.In recent years, for energy-saving and emission-reduction, there is low temperature exhaust heat source, temperature-heat-source need again in Occasion, using first class lithium bromide absorptive heat pump unit extract low temperature exhaust heat water（40 DEG C or so）Heat, produce out ratio The middle temperature-heat-source of high more than 40 DEG C of low-temperature heat source, a large amount of more than 40% middle pressure steam consumption can be saved, realize the comprehensive profit of the energy With achieving preferable economic benefit.Common steam type first-class lithium bromide absorption type heat pump unit（Such as Fig. 1）By generator 1st, condenser 2, evaporator 4, absorber 5, solution heat exchanger 3, solution pump 6, cryogenic fluid pump 7, pumped vacuum systems and control system （Not shown in figure）And the pipelines of connecting components, valve etc. are formed, comprehensive COP values only 1.70.Particularly in working steam Pressure is relatively low（Below 0.2MPA.G）, waste heat coolant-temperature gage is relatively low, hot water temperature is higher occasion, using common heat pump investment into This can be significantly increased.For this occasion, heat pump is optimal combination, reduce cost of investment, improve comprehensive COP Value, realizes the mixed economy and social benefit of energy-saving and emission-reduction, turns into one of important topic studied at present.
Utility model content
The purpose of this utility model is to provide a kind of working steam pressure is relatively low, waste heat coolant-temperature gage is relatively low, hot water temperature In the case of degree requires higher, make heat pump optimum combination, maximized recovery waste heat heat, the consumption for reducing working steam Measure, make higher temperature hot water, the steam type first-class lithium bromide absorption type heat pump with condensate recuperation of heat that comprehensive COP values improve System.
The technical scheme in the invention for solving the above technical problem is：A kind of first kind bromination with condensate recuperation of heat Lithium-absorbing formula heat pump, including the first class lithium bromide absorptive heat pump of first band condensate recuperation of heat and the second band condensate heat are returned The first class lithium bromide absorptive heat pump of receipts, first and second first class lithium bromide absorptive heat pump with condensate recuperation of heat is corresponding to be wrapped Include：First and second generator, first and second condenser, first and second evaporator, first and second absorber, first and second solution heat exchange Device, first and second cryogen condensate heat regenerator, first and second working steam condensate heat regenerator, first and second hot water regulating valve and First, two weak solution regulating valve, and connecting line and valve, the first hot water regulating valve are arranged on into the first cryogen condensate heat regenerator The first hot-water branch on, the second hot water regulating valve is arranged on on the second hot-water branch of the second cryogen condensate heat regenerator； First weak solution regulating valve is arranged on the first weak solution branch pipe, and the second weak solution regulating valve is arranged on the second weak solution branch pipe On；
The series connection of waste heat water lines first connects the first evaporator, reconnects the second evaporator.
Hot water line is connected in parallel to first and second absorber, first and second cryogen condensate heat regenerator, is connected again after collecting The second condenser is first connected, reconnects the first condenser；First cryogen condensate heat regenerator realizes that the first condenser comes out cold Hot water heat exchange in agent water and the first hot-water branch, the second cryogen condensate heat regenerator realize the water as refrigerant that the second condenser comes out Exchanged heat with the hot water in the second hot-water branch.
Working steam is connected in parallel in first and second generator, and the first working steam condensate heat regenerator realizes the first generation The working steam condensate of device exchanges heat with the weak solution in the first weak solution branch pipe；Second working steam condensate heat regenerator realizes The working steam condensate of two generators exchanges heat with the weak solution in the second weak solution branch pipe.
The heat pump solution of the application first and second circulates and the respective complete independently of cryogen water circulation.
Compared with prior art, it is the characteristics of the utility model：
It is identical that the application realizes the first and second absorber hot water inlet temperature, first and second absorber outlet weak solution Temperature is essentially identical, concentration changes with evaporating pressure；The first evaporator that remaining hot water is introduced into is because temperature is high, evaporating pressure Height, the first absorber outlet weak solution concentration are minimum；Going out the second evaporator remaining hot water because temperature is low, evaporating pressure is low, and second The weak solution concentration of absorber outlet is just high with respect to the first absorber；Because working steam pressure is low, generator concentrated solution goes out The temperature of mouth is with regard to low, and first and second generator concentrated solution outlet temperature is essentially identical, concentration is with generation pressure change, generation pressure Hot water outlet temperature is directly related with condenser, and the more low easier hair of the weak solution concentration to be come to life in generator It is raw；First condenser hot water outlet temperature is high, and pressure height occurs, and the first generator concentrated solution exit concentration is low；Second condenser Hot water outlet temperature is low compared with First, and generation pressure is low, and the second generator concentrated solution exit concentration is just high with respect to first；Make first Heat pump and the second heat pump set up suitable concentration difference and heat transfer temperature difference respectively, and concentration difference and heat transfer temperature difference increase, and reduce total pass Hot area, reduce equipment cost, hot-water heating system for first and after go here and there, hot water resistance significantly reduces.
The cryogen condensate heat regenerator that every heat pump carries makes hot water be exchanged heat with the high temperature cryogen condensate that condenser comes out, and makes Cryogen coolant-temperature gage into evaporator reduces, and adds the heat of recovery low temperature exhaust heat water；Working steam condensate heat regenerator makes The small part weak solution that absorber comes out exchanges heat with working steam condensate, and this part weak solution comes out big portion with solution heat exchanger Point weak solution enters generator after converging, and improves the temperature into generator weak solution, in the case where waste heat heat is certain, The consumption of working steam can be reduced, in the case where working steam consumption is certain, the heat of recovery low temperature exhaust heat water can increase Add.Therefore, it is relatively low in working steam pressure（Below 0.2MPA.G）, waste heat coolant-temperature gage is relatively low, the higher external condition of hot water temperature In the case of severe, can maximumlly it be returned using the steam type first-class lithium bromide absorption type heat pump system with condensate recuperation of heat Waste heat heat is received, the consumption of working steam is reduced, makes the middle warm water of higher temperature, comprehensive COP reaches more than 1.75, by It is separate in two heat pumps, only connected by pipeline, can also make equipment enlarging, heat pump cost of investment and operation into Originally it is greatly reduced, realizes the mixed economy and social benefit of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is existing first class lithium bromide absorptive heat pump set structure schematic diagram；
Fig. 2 is steam type first-class lithium bromide absorption type heat pump system architecture of the utility model with condensate heat regenerator Figure.
Generator 1
Condenser 2
Solution heat exchanger 3
Absorber 4
Evaporator 5
Solution pump 6
Cryogenic fluid pump 7
Working steam condensate heat regenerator 8
Weak solution regulating valve 9
Hot water regulating valve 10
Cryogen condensate heat regenerator 11
The first class lithium bromide absorptive heat pump unit A of first band condensate heat regenerator
The second first class lithium bromide absorptive heat pump B of Unit with condensate heat regenerator.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 2 the first class lithium bromide absorptive heat pump system with condensate recuperation of heat in the present embodiment, including the One first lithium bromide absorption types of the first class lithium bromide absorptive heat pump A and second with condensate recuperation of heat with condensate recuperation of heat Heat pump B.First and second first class lithium bromide absorptive heat pump with condensate recuperation of heat correspondingly includes：First and second generator 1, First, two condensers 2, first and second evaporator 4, first and second absorber 5, first and second solution heat exchanger 3, first and second cryogen coagulate Hydro-thermal recover 11, first and second working steam condensate heat regenerator 8, first and second hot water regulating valve 10 and first and second weak solution Regulating valve 9, and connecting line and valve, the first hot water regulating valve are arranged on the first hot water into the first cryogen condensate heat regenerator On branch pipe, the second hot water regulating valve is arranged on on the second hot-water branch of the second cryogen condensate heat regenerator；First weak solution Regulating valve is arranged on the first weak solution branch pipe, and the second weak solution regulating valve is arranged on the second weak solution branch pipe.First and second heat Pump solution circulates and the respective complete independently of cryogen water circulation.
The series connection of waste heat water lines first connects the first evaporator, reconnects the second evaporator.
Hot water line is connected in parallel to first and second absorber, first and second cryogen condensate heat regenerator 11, is gone here and there again after collecting Connection first connects the second condenser, reconnects the first condenser；First cryogen condensate heat regenerator 11 realizes that the first condenser 2 comes out Water as refrigerant and the first hot-water branch in hot water heat exchange, the second cryogen condensate heat regenerator 11 realizes that the second condenser 2 comes out Water as refrigerant and the second hot-water branch in hot water heat exchange.
Working steam is connected in parallel in first and second generator, and the first working steam condensate heat regenerator 8 realizes the first generation The working steam condensate of device 1 exchanges heat with the weak solution in the first weak solution branch pipe；Second working steam condensate heat regenerator 8 is realized The working steam condensate of second generator 1 exchanges heat with the weak solution in the second weak solution branch pipe.
Remaining hot water series connection enters back into the cooling of the second evaporator after being introduced into the cooling of the first evaporator；Hot water is in parallel to enter first With the second absorber, first and second cryogen condensate heat regenerator, the hot water into first and second cryogen condensate heat regenerator returns respectively The heat for the high temperature cryogen condensate that first and second condenser comes out is received, is come out from first and second absorber and cryogen condensate heat regenerator The hot water significantly to heat up merges together, and then connecting again sequentially enters the second condenser and the first condenser, makes higher temperatures The hot water of degree.First, second heat pump operation principle and Fig. 1 shown devices are essentially identical, and difference is the height that every condenser comes out Warm cryogen condensate is exchanged heat by the small part hot water branched away with hot-water branch, and high temperature cryogen condensate temperature just enters after reducing steams Send out device；Small part weak solution that every weak solution regulating valve branches away exchanges heat with working steam condensate, after temperature rise with solution Most of high temperature weak solution that heat exchanger comes out enters generator together.
Said apparatus makes the middle warm water of higher temperature in the case of working steam pressure is relatively low, and unit can maximize, Comprehensive COP values improve, and heat pump investment and operating cost reduce, and realize the mixed economy and social benefit of energy-saving and emission-reduction.
In addition to the implementation, the utility model also includes other embodiment, all to use equivalents or equivalent The technical scheme that substitute mode is formed, all should fall within the protection domain of the utility model claims.

Claims (1)

1. a kind of first class lithium bromide absorptive heat pump system with condensate recuperation of heat, includes the first of first band condensate recuperation of heat Lithium bromide absorption type heat pump and the second first class lithium bromide absorptive heat pump with condensate recuperation of heat, first and second band condensate heat The first class lithium bromide absorptive heat pump of recovery correspondingly includes：First and second generator（1）, first and second condenser（2）, first, Two evaporators（4）, first and second absorber（5）, first and second solution heat exchanger（3）, first and second cryogen condensate heat regenerator （11）, first and second working steam condensate heat regenerator（8）, first and second hot water regulating valve（10）Adjusted with first and second weak solution Valve（9）, and connecting line and valve, the first hot water regulating valve be arranged on the first hot water branch into the first cryogen condensate heat regenerator Guan Shang, the second hot water regulating valve are arranged on on the second hot-water branch of the second cryogen condensate heat regenerator；First weak solution is adjusted Section valve is arranged on the first weak solution branch pipe, and the second weak solution regulating valve is arranged on the second weak solution branch pipe；
The series connection of waste heat water lines first connects the first evaporator, reconnects the second evaporator；
Hot water line is connected in parallel to first and second absorber, first and second cryogen condensate heat regenerator（11）, connected again after collecting The second condenser is first connected, reconnects the first condenser；First cryogen condensate heat regenerator（11）Realize the first condenser（2）Go out Hot water heat exchange in the water as refrigerant and the first hot-water branch come, the second cryogen condensate heat regenerator（11）Realize the second condenser （2）Hot water heat exchange in water as refrigerant and the second hot-water branch out；
Working steam is connected in parallel in first and second generator, the first working steam condensate heat regenerator（8）Realize the first generator （1）Working steam condensate and the first weak solution branch pipe in weak solution exchange heat；Second working steam condensate heat regenerator（8）It is real Existing second generator（1）Working steam condensate and the second weak solution branch pipe in weak solution exchange heat.
CN201720391358.0U 2017-04-14 2017-04-14 First class lithium bromide absorptive heat pump system with condensate recuperation of heat Active CN206695431U (en)

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CN201720391358.0U CN206695431U (en) 2017-04-14 2017-04-14 First class lithium bromide absorptive heat pump system with condensate recuperation of heat

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Application Number Priority Date Filing Date Title
CN201720391358.0U CN206695431U (en) 2017-04-14 2017-04-14 First class lithium bromide absorptive heat pump system with condensate recuperation of heat

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CN206695431U true CN206695431U (en) 2017-12-01

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