CN208108536U - A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system - Google Patents

A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system Download PDF

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Publication number
CN208108536U
CN208108536U CN201820438446.6U CN201820438446U CN208108536U CN 208108536 U CN208108536 U CN 208108536U CN 201820438446 U CN201820438446 U CN 201820438446U CN 208108536 U CN208108536 U CN 208108536U
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China
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heat
water
waste
refrigerant
low temperature
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CN201820438446.6U
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Inventor
刘明军
夏克盛
张红岩
韩世庆
孟玲燕
王剑新
李伦
王海静
李德权
张佳琳
李伟
邵虹
唐倩
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Panasonic Appliances Air Conditioning and Refrigeration Dalian Co Ltd
Panasonic Appliances Refrigeration System Dalian Co Ltd
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Panasonic Appliances Refrigeration System Dalian Co Ltd
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    • 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
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • 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
    • Y02B30/625Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration

Abstract

The utility model belongs to field of refrigeration equipment, and in particular to a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system.Propose a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system, including condenser, waste-heat recoverer, absorber, evaporator, multiple circulating pumps and connecting line, there are the two kinds of operating modes that freeze and heat in the system, the system works in heating mode, low temperature exhaust heat accesses to waste-heat recoverer by the road, water as refrigerant is via the drop shower device in piping connection to waste-heat recoverer, the water as refrigerant of the drop shower device drop leaching generates refrigerant vapour after waste-heat recoverer heats, the heating water heat exchange in the refrigerant vapour and heat-transfer pipe obtains heating hot water under vacuum conditions.The utility model provides a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system, which can realize that waste heat recycles cooling in summer, heat supply in winter by pattern switching, simplify residual neat recovering system, reduce investment outlay.

Description

A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system
Technical field
The utility model belongs to field of refrigeration equipment, and in particular to a kind of low temperature exhaust heat reclaiming type lithium bromide absorption type cooling and heating Water system.
Background technique
Low temperature exhaust heat reclaiming type lithium-bromide absorption-type refrigerating machine is to utilize low temperature exhaust heat(Generally liquid carrier, gaseous state carry The waste heat of the forms such as body)Driving, the equipment for producing cold water because of its recoverable low temperature exhaust heat, adopt water as refrigerant to ring The advantages such as border is pollution-free, power system capacity is big, system maintenance management facilitates are widely applied in industrial afterheat recovery refrigerating field, Such as steel, petrochemical industry, chemical industry, coking, weaving.Low temperature exhaust heat reclaiming type suction-type lithium bromide system is only capable of recovery waste heat system at present It is cold, it cannot heat, be primarily due to that low temperature exhaust heat grade is lower, lithium-bromide solution can not be heated to the temperature, dense that be concentrated to needs Degree;And in fact, many projects need recovery waste heat cooling in summer, heat supply in winter, realization waste heat recycling maximizes.Current does Method meet demand mainly in such a way that low temperature exhaust heat reclaiming type lithium-bromide absorption-type refrigerating machine is combined with heating heat exchanger(Such as Shown in Fig. 1), on the one hand doing so keeps residual neat recovering system more complicated, on the other hand increase residual neat recovering system investment(Industry The inferior quality of low temperature exhaust heat needs the heating heat exchanger of corrosion resistant special substance).
Utility model content
Utility model aims to solve the deficiencies present on, provide a kind of low temperature exhaust heat reclaiming type lithium bromide suction Receipts formula cold and hot water supply system, the system can realize that waste heat recycles cooling in summer, heat supply in winter by pattern switching, simplify waste heat recycling System is reduced investment outlay.
The utility model technical solution used for the above purpose is:Propose a kind of low temperature exhaust heat reclaiming type bromine Change lithium-absorbing formula cold and hot water supply system, including condenser, waste-heat recoverer, absorber, evaporator, internal heat regenerator, refrigeration are steamed Send out circulating pump, weak solution circulating pump, concentrated solution circulating pump, heating evaporative recirculation pump, waste heat control valve, waste heat changes in temperature switching valve, Water system changes in temperature switching valve, internal system changes in temperature switching valve, water system pipeline, refrigerant reservoir, connecting line, extract system and There are two kinds of operating modes of recycling low temperature exhaust heat refrigeration and heating in control system, the system, which works in heating mode, Low temperature exhaust heat accesses to waste-heat recoverer by the road, and water as refrigerant is via the drop shower device in piping connection to waste-heat recoverer, institute The water as refrigerant for stating drop shower device drop leaching generates refrigerant vapour after waste-heat recoverer heats, under vacuum conditions the refrigerant vapour Heating hot water is obtained with the heating water heat exchange in heat-transfer pipe.
The evaporator and absorber are arranged in same cylinder, and the condenser and waste-heat recoverer are arranged in same cylinder In vivo, the water as refrigerant comes in flash-pot, and the water as refrigerant in evaporator is by the road and heating evaporative recirculation pump is delivered to waste heat Drop shower device in recover, the interior refrigerant vapour generated of the waste-heat recoverer is delivered in evaporator by the road, described cold Heating water heat exchange in agent steam and heat-transfer pipe of evaporator obtains heating hot water, connects between the waste-heat recoverer and evaporator There is water as refrigerant return line.
The evaporator and absorber are arranged in same cylinder, and the condenser and waste-heat recoverer are arranged in same cylinder It in vivo, further include refrigerant reservoir in the lithium bromide absorption cold and hot water system, the water as refrigerant comes from refrigerant reservoir, cold Water as refrigerant in agent reservoir is by the road and heating evaporative recirculation pump is delivered to the drop shower device in waste-heat recoverer, the waste heat The refrigerant vapour generated in recover enters in condenser, and the refrigerant vapour is obtained with the heating water heat exchange in condenser thermal transfer pipe Must heat hot water, and water as refrigerant return line is connected between the waste-heat recoverer and cryogen memory.
Two kinds of operating modes of refrigeration and heating of the lithium bromide absorption cold and hot water system can be by being arranged in system The changes in temperature switching valve automatic or manual of interconnecting tube road switches.
The low temperature exhaust heat includes water at low temperature, conduction oil, flue gas, low-pressure steam and steam exhaust.
The cold and hot water supply system of the utility model realizes that summer residual heat recycles refrigeration mode and winter waste heat by internal switching Heating mode operating is recycled, when entering waste heat recycling refrigeration mode, internal system is recycled by lithium-bromide solution, water as refrigerant follows Ring is realized;When entering waste heat recycling heating mode, internal system is recycled by water as refrigerant realizes, compared with prior art this reality With having the beneficial effect that for new patent:
(1)The utility model is switched by internal system realizes that summer residual heat recycles refrigeration mode and the recycling of winter waste heat supplies Warm mode operation, realizes the maximization of heat recovery;
(2)The utility model is switched by internal system realizes that summer residual heat recycles refrigeration mode and the recycling of winter waste heat supplies Warm mode operation when warming operation, is transmitted by cryogen hydro-thermal, it can be achieved that heating the better effect of heat exchanger than tradition, i.e., in fact The maximization of existing heat recovery, and heating heat exchanger is saved, simplify residual neat recovering system structure, reduces investment outlay;
(3)Further, the utility model carries out refrigerant cycle, additional independent cryogen storage using independent refrigerant reservoir Storage can guarantee the respective separate storage of water as refrigerant of cooling condition and the operating condition that heats, also can guarantee the water as refrigerant of heating operating condition not into Enter into lithium-bromide solution, guarantees the stability of two kinds of operating conditions operating.
(4)The application range of the utility model is very extensive, first is that the low temperature exhaust heat form of recoverable is wide, more than low temperature Heat can make water at low temperature, conduction oil, flue gas, low-pressure steam, steam exhaust etc., second is that applicable field is wide, can be applicable to steel, The fields such as coking, petrochemical industry, chemical industry.Using the forms such as liquid carrier waste heat, gaseous carrier waste heat and gas-liquid mixed waste heat into Row waste heat recycling refrigeration and the occasion of waste heat recycling heating.
Detailed description of the invention
Fig. 1 is previous low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system flow chart;
Fig. 2 is a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system flow chart of the utility model;
Fig. 3 is another low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system flow chart of the utility model;
Description of symbols:
1-1 condenser, 1-2 waste-heat recoverer, 1-3 absorber, 1-4 evaporator, the inside 1-5 heat regenerator, 1-6 refrigeration are steamed Send out circulating pump, 1-7 weak solution circulating pump, 1-8 concentrated solution circulating pump, 1-9 heating evaporative recirculation pump, 1-10 waste heat control valve, 2-1 Heating heat exchanger, 3-1~3-4 waste heat changes in temperature switching valve, 3-5~3-10 water system changes in temperature switching valve, 4-1 waste heat go out pipeline, 4-2 Heat out pipeline, 4-4 heating inlet pipe road, 4-5 cooling water inlet pipe road, 4-6 cooling water outlet tube road, 4-7 of waste heat inlet pipe road, 4-3 is cold Water inlet pipe road, 4-8 cold water go out pipeline, 5-1~5-8 internal system changes in temperature switching valve, 6-1 refrigerant reservoir.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing:
Embodiment one:
As shown in Figure 2 is a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system flow of the utility model Figure, the system with lower component mainly by being constituted:Condenser 1-1, waste-heat recoverer 1-2, absorber 1-3, evaporator 1-4, inside Heat regenerator 1-5, refrigeration evaporator circulating pump 1-6, weak solution circulating pump 1-7, concentrated solution circulating pump 1-8, heating evaporative recirculation pump 1-9, waste heat control valve 1-10, water system changes in temperature switching valve 3-5~3-8, waste heat go out pipeline 4-1, waste heat inlet pipe road 4-2, heating Pipeline 4-3, heating inlet pipe road 4-4, cooling water inlet pipe road 4-5, cooling water outlet tube road 4-6, cold water inlet pipe road 4-7, cold water go out out Pipeline 4-8, internal system changes in temperature switching valve 5-1~5-5, extract system, control system and connecting line, valve etc. are constituted. Waste heat can be achieved its main feature is that switching by water system changes in temperature switching valve 3-5~3-8, internal system changes in temperature switching valve 5-1~5-5 Recycling refrigeration, waste heat recycling heating both of which operating.
The switching of waste heat recycling refrigeration mode and drive manner are described as follows:Water system changes in temperature switching valve 3-5~3-6 is beaten It opens, water system changes in temperature switching valve 3-7~3-8 is closed, internal system changes in temperature switching valve 5-1,5-3,5-5 are closed, internal system is cold Warm switching valve 5-2,5-4 is opened and control mode switch carries out waste heat and recycles cooling operation pattern.The mode course of work is visitor Family low temperature exhaust heat enter waste-heat recoverer 1-2 heating lithium bromide weak solution, by lithium bromide weak solution heating be concentrated for lithium bromide it is dense Solution, concentrated solution enters absorber 1-3 through internal heat regenerator 1-5, while refrigerant vapour is segregated into from lithium-bromide solution Condenser 1-1, refrigerant vapour and cooling water heat exchange are condensed into water as refrigerant in condenser 1-1, and the water as refrigerant in condenser 1-1 is logical It crosses throttling set and enters evaporator 1-4, water as refrigerant is recycled by refrigeration evaporator circulating pump 1-6 driving in evaporator 1-4, is dripped Leaching is in heat transfer tube outer surface, and because pressure is low in evaporator 1-4, the cryogen water evaporation of circulation drop leaching absorbs the heat of water in heat-transfer pipe Amount, which is realized, produces chilled water, and the refrigerant vapour evaporated in evaporator 1-4 is absorbed the absorption of the lithium bromide concentrated solution in device 1-3, To maintain environment under low pressure in evaporator 1-4, while lithium bromide concentrated solution absorbs water vapour becomes lithium bromide weak solution, then into Enter waste-heat recoverer 1-2 circulation, internal heat regenerator 1-5 mainly recycles lithium bromide concentrated solution heat, improves internal follow Control is adjusted according to cooling system load in ring efficiency, waste heat control valve 1-10.
The switching of waste heat recycling heating mode and drive manner are described as follows:Water system changes in temperature switching valve 3-5~3-6 is closed It closes, water system changes in temperature switching valve 3-7~3-8 is opened, internal system changes in temperature switching valve 5-1,5-3,5-5 are opened, internal system is cold Warm switching valve 5-2,5-4 is closed and control mode switch carries out waste heat and recycles warming operation mode.The mode course of work is visitor Family low temperature exhaust heat enters the water as refrigerant that waste-heat recoverer 1-2 heating carrys out self-heating evaporative recirculation pump 1-9 circulation drop leaching, internal system For subnormal ambient, water as refrigerant becomes refrigerant vapour after being heated, refrigerant vapour enters steaming by internal system changes in temperature switching valve 5-3 Device 1-4 is sent out, the hot water in evaporator 1-4 in refrigerant vapour and heat-transfer pipe carries out heat exchange and produces heating hot water, is achieved remaining Control is adjusted according to system heat load in the operating of recuperation of heat heating mode, waste heat control valve 1-10.
Embodiment two:
As shown in Figure 3 is another low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system stream of the utility model Cheng Tu, it is different with former scheme, increase refrigerant reservoir 6-1, when water system changes in temperature switching valve 3-7~3-8 is closed It closes, water system changes in temperature switching valve 3-9~3-10 opening, internal system changes in temperature switching valve 5-1,5-5,5-6,5-8 are closed, in system Portion changes in temperature switching valve 5-2,5-4,5-7 open and control mode switch carry out waste heat recycle cooling operation pattern, drive manner with Previous scheme is almost the same, repeats no more.When water system changes in temperature switching valve 3-7~3-8 is opened, water system changes in temperature switching valve 3-9 ~3-10 is closed, internal system changes in temperature switching valve 5-1,5-5,5-6,5-8 opening, internal system changes in temperature switching valve 5-2,5-4,5- 7 closings and control mode switch carry out waste heat and recycle warming operation mode, which is the entrance of client's low temperature exhaust heat Waste-heat recoverer 1-2 heating carrys out the water as refrigerant of self-heating evaporative recirculation pump circulation 1-9 drop leaching, and internal system is subnormal ambient, cold Agent water becomes refrigerant vapour after being heated, refrigerant vapour enters condenser 1-1, refrigerant vapour and heat-transfer pipe in condenser 1-1 Interior hot water carry out heat exchange produces heating hot water, be achieved waste heat recycling heating mode operating, waste heat control valve 1-10 according to Control is adjusted in system heat load.
The utility model is switched by internal system realizes that summer residual heat recycles refrigeration mode and the recycling heating of winter waste heat Mode operation when warming operation, is transmitted by cryogen hydro-thermal, it can be achieved that effect more better than tradition heating heat exchanger, that is, realize The maximization of heat recovery, and heating heat exchanger is saved, simplify residual neat recovering system structure, reduces investment outlay.
Embodiments described above is only a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts Every other embodiment, fall within the protection scope of the utility model.

Claims (5)

1. a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system, including condenser, waste-heat recoverer, absorber, Evaporator, internal heat regenerator, refrigeration evaporator circulating pump, weak solution circulating pump, concentrated solution circulating pump, heating evaporative recirculation pump, Waste heat control valve, waste heat changes in temperature switching valve, water system changes in temperature switching valve, internal system changes in temperature switching valve, water system pipeline, cryogen There are two kinds of Working moulds of recycling low temperature exhaust heat refrigeration and heating in reservoir, connecting line, extract system and control system, the system Formula, it is characterised in that:The system works in heating mode, and low temperature exhaust heat accesses to waste-heat recoverer, water as refrigerant warp by the road By the drop shower device in piping connection to waste-heat recoverer, the water as refrigerant of the drop shower device drop leaching is after waste-heat recoverer heats Refrigerant vapour is generated, the heating water heat exchange in the refrigerant vapour and heat-transfer pipe obtains heating hot water under vacuum conditions.
2. a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system according to claim 1, it is characterised in that: The evaporator and absorber are arranged in same cylinder, and the condenser and waste-heat recoverer are arranged in same cylinder, institute It states water as refrigerant to come in flash-pot, the water as refrigerant in evaporator is by the road and heating evaporative recirculation pump is delivered in waste-heat recoverer Drop shower device, the refrigerant vapour generated in the waste-heat recoverer is delivered in evaporator by the road, the refrigerant vapour with Heating water heat exchange in heat-transfer pipe of evaporator obtains heating hot water, is connected with water as refrigerant between the waste-heat recoverer and evaporator Return line.
3. a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system according to claim 1, it is characterised in that: The evaporator and absorber are arranged in same cylinder, and the condenser and waste-heat recoverer are arranged in same cylinder, institute Stating in lithium bromide absorption cold and hot water system further includes refrigerant reservoir, and the water as refrigerant comes from refrigerant reservoir, cryogen storage Water as refrigerant in device is by the road and heating evaporative recirculation pump is delivered to the drop shower device in waste-heat recoverer, the waste-heat recoverer The refrigerant vapour of interior generation enters in condenser, and the heating water heat exchange in the refrigerant vapour and condenser thermal transfer pipe is heated Hot water is connected with water as refrigerant return line between the waste-heat recoverer and cryogen memory.
4. a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system according to claim 1 to 3, special Sign is:Two kinds of operating modes of refrigeration and heating of the lithium bromide absorption cold and hot water system can be by being arranged in system Changes in temperature switching valve automatic or manual switching on portion's connecting line.
5. a kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system according to claim 1 to 3, special Sign is:The low temperature exhaust heat includes water at low temperature, conduction oil, flue gas, low-pressure steam and steam exhaust.
CN201820438446.6U 2018-03-29 2018-03-29 A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system Active CN208108536U (en)

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CN201820438446.6U CN208108536U (en) 2018-03-29 2018-03-29 A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system

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CN201820438446.6U CN208108536U (en) 2018-03-29 2018-03-29 A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111854219A (en) * 2019-04-27 2020-10-30 哈尔滨工大金涛科技股份有限公司 Waste water type lithium bromide absorption refrigerating unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111854219A (en) * 2019-04-27 2020-10-30 哈尔滨工大金涛科技股份有限公司 Waste water type lithium bromide absorption refrigerating unit

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