CN112013564A - Comprehensive utilization system and method for adsorption recovery waste heat - Google Patents

Comprehensive utilization system and method for adsorption recovery waste heat Download PDF

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Publication number
CN112013564A
CN112013564A CN202010913331.XA CN202010913331A CN112013564A CN 112013564 A CN112013564 A CN 112013564A CN 202010913331 A CN202010913331 A CN 202010913331A CN 112013564 A CN112013564 A CN 112013564A
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CN
China
Prior art keywords
hot water
temperature hot
lithium bromide
low
heat exchanger
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
CN202010913331.XA
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Chinese (zh)
Inventor
柴灵芝
王文超
纪麟肯
刘升
王士刚
刘涛
郭亮
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Qingdao Huashijie Environment Protection Technology Co ltd
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Qingdao Huashijie Environment Protection Technology Co ltd
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Publication date
Priority to CN201910832909.6A priority Critical patent/CN110530059A/en
Priority to CN2019108329096 priority
Application filed by Qingdao Huashijie Environment Protection Technology Co ltd filed Critical Qingdao Huashijie Environment Protection Technology Co ltd
Publication of CN112013564A publication Critical patent/CN112013564A/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
    • F25B27/00Machines, plants or systems, using particular sources of energy
    • F25B27/02Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • 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
    • F25B15/00Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • 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 invention relates to a comprehensive utilization system and method for adsorbing and recovering waste heat, and belongs to the field of waste heat recovery. The system comprises a desorption steam outlet and a heat exchanger, wherein the desorption steam outlet is connected with the heat exchanger, the system also comprises a lithium bromide refrigerator, a low-temperature hot water outlet of the lithium bromide refrigerator is communicated with a water inlet of the heat exchanger, and a high-temperature hot water inlet of the lithium bromide refrigerator is communicated with a water outlet of the heat exchanger. The system and the method convert the low-temperature waste heat in the adsorption recovery process into deep cold water for self consumption by utilizing the lithium bromide refrigerator, thereby solving the problems of a large amount of low-temperature waste heat and waste of circulating water caused by condensation of circulating water for adsorbing, recovering and desorbing steam at present; meanwhile, the problem that intermittently used desorption steam cannot be directly used for a lithium bromide refrigerator is further solved, continuous operation is realized, and the method is suitable for large-scale industrial popularization.

Description

Comprehensive utilization system and method for adsorption recovery waste heat
Technical Field
The invention relates to an adsorption recovery waste heat comprehensive utilization system, and belongs to the field of waste heat recovery.
The invention also relates to an adsorption recovery waste heat comprehensive utilization method based on the system.
Background
The adsorption recovery equipment for activated carbon particles, activated carbon fibers and the like is a large energy consumer, needs to consume a large amount of water vapor and deep cold water, and has huge annual operating cost. At 15000Nm3The air volume per hour and the discharge amount of dichloromethane of 900 kg/hour are taken as an example for explaining a 3-box 12-core 60kg activated carbon fiber absorption device.
If the desorption time is 7min, the instantaneous flow of the desorbed steam of the adsorption and recovery device with 3 boxes and 12 cores and 60kg is close to 3.0 t/h. And the actual average steam consumption reaches 2.63t/h and the water-oil ratio is about 2.74 by calculating according to the switching time of 8.0 min. The annual running time is 7200h, the steam price is 200 yuan/t, and the annual steam cost is 355 ten thousand yuan. The desorption steam is divided into heating steam and replacement steam, the heating steam is condensed into water in the process of heating the box body and the fibers and is adhered to the fibers; the box body is replaced by the VOCs desorbed by replacement steam, the replacement steam accounts for 30% -50% of the total steam consumption, the replacement steam is discharged from the adsorption box body at present and then is generally led to a circulating water condenser for condensation, a large amount of low-temperature waste heat is wasted, a large amount of circulating water is consumed, and 300m is needed for 3 boxes of 12-core 60kg ACF equipment3Energy of circulating water (according to 6 ℃ temperature difference)The source waste is severe.
Because the fibers use secondary air as drying air, a surface air cooler is required to be arranged on the secondary air pipe to reduce the humidity of the secondary air, thereby improving the drying effect of the fibers, and the secondary air quantity is 15000Nm3The capacity of a secondary surface cooler deep cold water filling machine reaches 77m3The actual average consumption is about 40m (according to the second stage wind is cooled to 25 ℃ and then is increased to 40 ℃), and3the price of deep cooling water is 1.35 yuan/m in annual running time 7200h3The annual deep cooling water cost of the secondary surface cooler is 38.9 ten thousand yuan. In addition, under the new environmental protection pressure, in order to reach the environmental protection standard, a runner process is generally connected in series behind the ACF, the requirement of the runner on the humidity of the waste gas is strict, and a large amount of deep cold water is consumed to humidify the waste gas.
Disclosure of Invention
The invention aims to provide a comprehensive utilization system and a method for adsorbing and recovering waste heat, aiming at the problems that the adsorption and recovery process has low-temperature waste heat and needs to consume a large amount of deep cold water, a lithium bromide refrigerator is utilized to convert the low-temperature waste heat into the deep cold water for self consumption, and the waste of a large amount of low-temperature waste heat and circulating water caused by condensation of circulating water for adsorbing, recovering and desorbing steam at present is solved; meanwhile, the problem that intermittently used desorption steam cannot be directly used for a lithium bromide refrigerator is further solved, continuous operation is realized, and the method is suitable for large-scale industrial popularization.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an adsorb recovery waste heat comprehensive utilization system, includes desorption steam outlet and heat exchanger, desorption steam outlet links to each other with the heat exchanger, still includes the lithium bromide refrigerator, the low temperature hot water export of lithium bromide refrigerator is linked together with the heat exchanger water inlet, the high temperature hot water entry of lithium bromide refrigerator is linked together with the heat exchanger delivery port. The heat exchanger can also be connected with a condenser so as to facilitate the desorption steam after heat exchange to continue condensing.
Furthermore, the system also comprises a hot water buffer device, and the water outlet and the water inlet of the heat exchanger are respectively communicated with the high-temperature hot water inlet and the low-temperature hot water outlet of the lithium bromide refrigerator through the hot water buffer device. By arranging the hot water buffer device, intermittent desorption steam waste heat can be converted into continuous heating medium water to enter the lithium bromide refrigerator for utilization, and circulation is formed. The volume of the hot water buffer device is continuous hot water flow and adsorption recovery equipment switching time k, wherein k is a coefficient and takes a value between 1 and 3.
Furthermore, the hot water buffer device can further comprise a low-temperature hot water area and a high-temperature hot water area, and the upper parts of the low-temperature hot water area and the high-temperature hot water area are communicated. The stability of the continuous operation of the whole system is further improved by the overflow effect of the upper parts of the two areas which are communicated. The low-temperature hot water area and the high-temperature hot water area can be formed by arranging a separation plate upwards at the bottom of the hot water buffer device, or two storage tanks with communicated upper parts form the hot water buffer device together.
The water outlet and the water inlet of the heat exchanger are respectively communicated with the high-temperature hot water area and the low-temperature hot water area of the hot water buffer device, and the low-temperature hot water outlet and the high-temperature hot water inlet of the lithium bromide refrigerator are respectively communicated with the low-temperature hot water area and the high-temperature hot water area of the hot water buffer device.
The system further comprises a deep cold water return tank, a deep cold water return port is formed in the upper portion of the deep cold water return tank, a water outlet of the deep cold water return tank is communicated with a deep cold water inlet of the lithium bromide refrigerator, and a deep cold water outlet of the lithium bromide refrigerator is communicated with water utilization equipment.
An adsorption recovery waste heat comprehensive utilization method based on the system comprises the following steps:
the heat exchanger is filled with low-temperature hot water from the lithium bromide refrigerator, and the high-temperature hot water is formed after the desorbed steam enters the heat exchanger for heat exchange and enters the lithium bromide refrigerator.
Further, the low-temperature hot water from the lithium bromide refrigerator enters the hot water buffer device and then enters a heat exchanger for heat exchange; and the high-temperature hot water enters the hot water buffer device from the heat exchanger and then enters the lithium bromide refrigerator.
Furthermore, the low-temperature hot water from the lithium bromide refrigerator enters the low-temperature hot water area of the hot water buffer device, and the high-temperature hot water enters the high-temperature hot water area of the hot water buffer device from the heat exchanger and then enters the lithium bromide refrigerator.
And when the liquid level of the low-temperature hot water area is low or the desorption is finished, stopping conveying the low-temperature hot water to the heat exchanger.
And when the liquid level of the low-temperature hot water area and/or the high-temperature hot water area of the hot water buffer device is lower, the hot water buffer device is supplemented with water.
And further, when the sum of the liquid levels of the low-temperature hot water area and the high-temperature hot water area is lower than the lower limit of the liquid level alarm value, a water replenishing valve is opened to replenish water to the low-temperature hot water area.
The deep cold water backwater of the water using equipment enters the lithium bromide refrigerator through the deep cold water backwater tank, and enters the water using equipment through the deep cold water outlet of the lithium bromide refrigerator after being refrigerated. When detecting that the liquid level is low among the deep cold water backwater jar, carry out the moisturizing, set up deep cold water backwater jar, can also play the effect of buffering, make the cold water temperature who gets into the refrigerator stable to reduce undulant.
Compared with the prior art, the invention has the following advantages:
(1) the lithium bromide refrigerator is applied to the adsorption recovery device, a large amount of waste heat is recovered, and the generated deep cold water can be used for self consumption.
(2) The continuous and stable operation is realized by arranging the hot water buffer device and dividing the hot water buffer device into the low-temperature hot water area and the high-temperature hot water area and arranging the deep cold water return tank, and the problem that desorption steam used intermittently cannot be directly used for a lithium bromide refrigerator is solved.
Drawings
Fig. 1 is a schematic structural diagram of an adsorption recovery waste heat comprehensive utilization system of the present invention.
The notation in the figure is: the system comprises a desorption steam outlet 1, a heat exchanger 2, a heat exchanger water inlet 201, a heat exchanger water outlet 202, a lithium bromide refrigerator 3, a high-temperature hot water inlet 301, a low-temperature hot water outlet 302, a generator 303, a condenser 304, an evaporator 305, an absorber 306, a deep cold water inlet 307, a deep cold water outlet 308, a primary condenser 4, a hot water buffer device 5, a low-temperature hot water tank 501, a high-temperature hot water tank 502, a deep cold water return tank 6, a deep cold water return port 601, a deep cold water return tank water outlet 602, a hot water heat exchange pump 7, a hot water pump 8 and a water replenishing valve 9.
Detailed Description
The technical solution of the present invention is further described in detail below by way of examples and with reference to the accompanying drawings, but is not limited to the contents of the examples.
The utility model provides an adsorb recovery waste heat comprehensive utilization system, as shown in figure 1, includes desorption steam outlet 1 and heat exchanger 2, and desorption steam outlet 1 links to each other with heat exchanger 2, still includes lithium bromide refrigerator 3, and the low temperature hot water export 302 of lithium bromide refrigerator 3 is linked together with heat exchanger water inlet 201, and the high temperature hot water entry 301 of lithium bromide refrigerator is linked together with heat exchanger water outlet 202. The heat exchanger 2 can also be connected with a primary condenser 4 so as to facilitate the condensation of the desorbed steam after heat exchange.
The refrigerant of the lithium bromide refrigerator 3 is water, the absorbent is a lithium bromide concentrated solution, and in the operation process of the lithium bromide refrigerator, when the lithium bromide aqueous solution is heated by high-temperature hot water from a high-temperature hot water inlet 301 in a generator 303, water in the solution is vaporized into water vapor, the water vapor enters a condenser 304, is cooled by cooling water in the condenser 304 and then is condensed to form high-pressure low-temperature liquid water; when entering the evaporator 305 through the throttle valve, the liquid water expands rapidly to be vaporized, and absorbs a large amount of heat of refrigerant water in the evaporator 305 in the vaporization process, thereby achieving the purpose of cooling and refrigeration; in the process, low-temperature water vapor enters the absorber 306, is absorbed by the concentrated lithium bromide solution from the generator 303, the concentration of the solution is gradually reduced, and then the solution is sent back to the generator 303 by the circulating pump to complete the whole circulation.
The system in the embodiment further includes a hot water buffer device 5, and the heat exchanger water outlet 202 and the heat exchanger water inlet 201 are respectively communicated with a high-temperature hot water inlet 301 and a low-temperature hot water outlet 302 of the lithium bromide refrigerator 3 through the hot water buffer device 5.
Furthermore, the hot water buffer device 5 in this embodiment further includes a low-temperature hot water tank 501 and a high-temperature hot water tank 502, and the upper portions of the low-temperature hot water tank 501 and the high-temperature hot water tank 502 are communicated. The low-temperature hot-water tank 501 and the high-temperature hot-water tank 502 are formed by providing a partition plate upward from the bottom of the hot-water buffer 5.
The heat exchanger water outlet 202 and the heat exchanger water inlet 201 are respectively communicated with the high-temperature hot water tank 502 and the low-temperature hot water tank 501 of the hot water buffer device 5, and the low-temperature hot water outlet 302 and the high-temperature hot water inlet 301 of the lithium bromide refrigerator 3 are respectively communicated with the low-temperature hot water tank 501 and the high-temperature hot water tank 502 of the hot water buffer device.
The system in the embodiment also comprises a deep cold water backwater tank 6, the upper part of which is provided with a deep cold water backwater port 601, the water outlet 602 of the deep cold water backwater tank is communicated with the deep cold water inlet 307 of the lithium bromide refrigerator 3, and the deep cold water inlet 307 provides refrigerant water; the deep cold water outlet 308 of the lithium bromide refrigerator 3 is communicated with a water using device.
An adsorption recovery waste heat comprehensive utilization method based on the system comprises the following steps:
the heat exchanger 2 is filled with low-temperature hot water from the lithium bromide refrigerator 3, and the desorbed steam enters the heat exchanger 2 for heat exchange to form high-temperature hot water which enters the lithium bromide refrigerator 3.
Further, in the present embodiment, the low-temperature hot water from the lithium bromide refrigerator 3 enters the hot water buffer device 5 and then enters the heat exchanger 2 for heat exchange; high-temperature hot water enters the hot water buffer device 5 from the heat exchanger 2 and then enters the lithium bromide refrigerator 3.
Furthermore, in this embodiment, the low-temperature hot water from the lithium bromide refrigerator 3 is stored in the low-temperature hot water tank 501 of the hot water buffer device 5 at a continuous low flow rate, when detecting that there is steam in the desorption/exhaust line, the hot water heat exchanger 7 is turned on to send the low-temperature hot water in the low-temperature hot water tank 501 to the heat exchanger 2 at a high flow rate for heat exchange, the hot water heat exchanger 7 performs frequency conversion adjustment, and the high-temperature hot water after heat exchange returns to the high-temperature hot water tank 502 for storage. Meanwhile, the hot water pump 8 continuously pumps the high-temperature hot water in the high-temperature hot water tank 502 and delivers the high-temperature hot water to the lithium bromide refrigerator 3 for use.
When the liquid level of the low-temperature hot water tank 501 is low or the desorption is finished, the hot water heat exchange pump 7 is closed, and the low-temperature hot water is stopped being conveyed to the heat exchanger 2.
When the liquid level of the low-temperature hot water tank 501 and/or the high-temperature hot water tank 502 of the hot water buffer device 5 is lower, water is supplemented.
Further, when the sum of the liquid levels of the low-temperature hot water tank 501 and the high-temperature hot water tank 502 is lower than the lower limit of the liquid level alarm value, the water replenishing valve 9 is opened to replenish water to the low-temperature hot water tank 501.
The deep cold water backwater of the water using equipment enters the lithium bromide refrigerator 3 through the deep cold water backwater tank 6, and enters the water using equipment through the deep cold water outlet 308 of the lithium bromide refrigerator 3 after refrigeration. When the liquid level in the deep cold water backwater tank 6 is detected to be low, water can be supplemented.

Claims (10)

1. The comprehensive utilization system for the adsorption recovery waste heat comprises a desorption steam outlet and a heat exchanger, wherein the desorption steam outlet is connected with the heat exchanger.
2. The system for comprehensively utilizing the adsorption recovery waste heat according to claim 1, further comprising a hot water buffer device, wherein the water outlet of the heat exchanger and the water inlet of the heat exchanger are respectively communicated with the high-temperature hot water inlet and the low-temperature hot water outlet of the lithium bromide refrigerator through the hot water buffer device.
3. The system for comprehensively utilizing the absorption recovery waste heat according to claim 2, wherein the hot water buffer device is provided with a low-temperature hot water area and a high-temperature hot water area, and the upper parts of the low-temperature hot water area and the high-temperature hot water area are communicated.
4. The system for comprehensively utilizing the absorption recovery waste heat according to claim 3, wherein the water outlet of the heat exchanger and the water inlet of the heat exchanger are respectively communicated with the high-temperature hot water region and the low-temperature hot water region of the hot water buffer device, and the low-temperature hot water outlet and the high-temperature hot water inlet of the lithium bromide refrigerator are respectively communicated with the low-temperature hot water region and the high-temperature hot water region of the hot water buffer device.
5. The system for comprehensively utilizing the adsorption recovery waste heat according to any one of claims 1 to 4, characterized in that the system further comprises a deep cold water return tank, the upper part of the deep cold water return tank is provided with a deep cold water return port, the water outlet of the deep cold water return tank is communicated with the deep cold water inlet of the lithium bromide refrigerator, and the deep cold water outlet of the lithium bromide refrigerator is communicated with a water using device.
6. An adsorption recovery waste heat comprehensive utilization method based on any one of the systems of claims 1 to 5 is characterized in that low-temperature hot water from a lithium bromide refrigerator is introduced into the heat exchanger, and the low-temperature hot water enters the heat exchanger through desorption steam to exchange heat to form high-temperature hot water which enters the lithium bromide refrigerator.
7. The comprehensive utilization method of the adsorption recovery waste heat according to claim 6, characterized in that the low-temperature hot water from the lithium bromide refrigerator enters the hot water buffer device and then enters a heat exchanger for heat exchange; and the high-temperature hot water enters the hot water buffer device from the heat exchanger and then enters the lithium bromide refrigerator.
8. The comprehensive utilization method of waste heat by adsorption recovery according to claim 7, wherein the low-temperature hot water from the lithium bromide refrigerator enters the low-temperature hot water region of the hot water buffer device, and the high-temperature hot water enters the high-temperature hot water region of the hot water buffer device from the heat exchanger and then enters the lithium bromide refrigerator.
9. The comprehensive utilization method of the absorption recovery waste heat according to any one of claims 6 to 8, characterized in that when the liquid level of the low-temperature hot water area and/or the high-temperature hot water area of the hot water buffer device is lower, water is supplemented.
10. The comprehensive utilization method of the adsorption recovery waste heat according to claim 6, characterized in that the deep cold water backwater of the water utilization equipment enters the lithium bromide refrigerator through the deep cold water backwater tank, and enters the water utilization equipment through the deep cold water outlet of the lithium bromide refrigerator after being refrigerated.
CN202010913331.XA 2019-09-04 2020-09-03 Comprehensive utilization system and method for adsorption recovery waste heat Pending CN112013564A (en)

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CN201910832909.6A CN110530059A (en) 2019-09-04 2019-09-04 A kind of adsorption recovery waste heat comprehensive utilization system and method
CN2019108329096 2019-09-04

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076523A (en) * 1980-05-22 1981-12-02 Exxon Research Engineering Co Absorption heat pump
JPS59162922A (en) * 1983-03-08 1984-09-13 Toyobo Co Ltd Method for recovering waste heat of adsorbing apparatus
JPS63190618A (en) * 1987-02-02 1988-08-08 Mitsubishi Heavy Ind Ltd Steam regenerating method for solvent recovery device
CN101603748A (en) * 2009-01-19 2009-12-16 福建百宏聚纤科技实业有限公司 Esterification steam exhaust heat recovering method and device
CN204027066U (en) * 2014-07-22 2014-12-17 中冶南方工程技术有限公司 Utilize the absorption system of silicon steel annealing furnace waste heat flue gas
CN204779409U (en) * 2015-06-16 2015-11-18 华陆工程科技有限责任公司 Benzene part hydrogenation generated ring hexene reaction heat utilization's device
CN107289663A (en) * 2016-04-12 2017-10-24 天津市冰科制冷设备有限公司 A kind of energy-conserving refrigeration system based on waste heat recovery
CN206847117U (en) * 2017-05-15 2018-01-05 华电电力科学研究院 A kind of system that working medium regeneration is carried out using oil direct-fired absorption chiller waste heat
CN208952070U (en) * 2018-08-06 2019-06-07 南京河西远大能源服务有限公司 A kind of steam lithium bromide chiller afterheat utilizing system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076523A (en) * 1980-05-22 1981-12-02 Exxon Research Engineering Co Absorption heat pump
JPS59162922A (en) * 1983-03-08 1984-09-13 Toyobo Co Ltd Method for recovering waste heat of adsorbing apparatus
JPS63190618A (en) * 1987-02-02 1988-08-08 Mitsubishi Heavy Ind Ltd Steam regenerating method for solvent recovery device
CN101603748A (en) * 2009-01-19 2009-12-16 福建百宏聚纤科技实业有限公司 Esterification steam exhaust heat recovering method and device
CN204027066U (en) * 2014-07-22 2014-12-17 中冶南方工程技术有限公司 Utilize the absorption system of silicon steel annealing furnace waste heat flue gas
CN204779409U (en) * 2015-06-16 2015-11-18 华陆工程科技有限责任公司 Benzene part hydrogenation generated ring hexene reaction heat utilization's device
CN107289663A (en) * 2016-04-12 2017-10-24 天津市冰科制冷设备有限公司 A kind of energy-conserving refrigeration system based on waste heat recovery
CN206847117U (en) * 2017-05-15 2018-01-05 华电电力科学研究院 A kind of system that working medium regeneration is carried out using oil direct-fired absorption chiller waste heat
CN208952070U (en) * 2018-08-06 2019-06-07 南京河西远大能源服务有限公司 A kind of steam lithium bromide chiller afterheat utilizing system

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