CN111854219A - Waste water type lithium bromide absorption refrigerating unit - Google Patents

Waste water type lithium bromide absorption refrigerating unit Download PDF

Info

Publication number
CN111854219A
CN111854219A CN201910382668.XA CN201910382668A CN111854219A CN 111854219 A CN111854219 A CN 111854219A CN 201910382668 A CN201910382668 A CN 201910382668A CN 111854219 A CN111854219 A CN 111854219A
Authority
CN
China
Prior art keywords
lithium bromide
enters
water
cylinder
evaporator
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
CN201910382668.XA
Other languages
Chinese (zh)
Inventor
宋乃秋
李伟
李金峰
尚德敏
黄伟成
杨学文
张明利
徐国伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hit Harbin Institute Of Technology Kint Technology Co ltd
Original Assignee
Hit Harbin Institute Of Technology Kint Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hit Harbin Institute Of Technology Kint Technology Co ltd filed Critical Hit Harbin Institute Of Technology Kint Technology Co ltd
Priority to CN201910382668.XA priority Critical patent/CN111854219A/en
Publication of CN111854219A publication Critical patent/CN111854219A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B33/00—Boilers; Analysers; Rectifiers
    • 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]
    • Y02B30/62—Absorption based systems

Abstract

The invention provides a waste water type lithium bromide absorption refrigerating unit, the general structure of which comprises: the device comprises an upper horizontal cylinder, a lower horizontal cylinder, a heat exchanger on the left side, a driving heat source on the right side, two circulating pumps and a plurality of connecting pipelines, wherein the two ends of the upper horizontal cylinder are closed, and the two ends of the upper horizontal cylinder are closed. Wherein: the upper part of the interior of the upper cylinder body is provided with a condenser, and the lower part of the interior of the upper cylinder body is provided with a generator; the evaporator is arranged on the upper part of the interior of the lower cylinder, and the absorber is arranged below the interior of the lower cylinder. The lithium bromide water solution is heated by the driving heat source in the generator, after part of the lithium bromide water solution is vaporized, the lithium bromide concentrated solution enters the absorber downwards, and the refrigerant water vapor enters the condenser upwards. The refrigerant water vapor is cooled and condensed by cooling water in the condenser, then enters the evaporator through the throttle valve downwards, expands and vaporizes to absorb the heat of air-conditioning chilled water in the evaporator, the refrigerant water vapor generated by vaporization enters the absorber downwards, is absorbed by the lithium bromide concentrated solution in the absorber, the concentration of the solution is reduced, and then is sent back to the generator upwards by the circulating pump.

Description

Waste water type lithium bromide absorption refrigerating unit
Technical Field
The invention relates to the technical field of waste heat utilization, in particular to a waste water type lithium bromide absorption refrigerating unit.
Background
In the production process of industries such as metallurgy, coal chemical industry, salt chemical industry and the like, a large amount of high-temperature process circulating cooling water or process wastewater exists and contains a large amount of high-temperature heat energy. Because the water quality components are complex, the conventional heat exchange equipment is easy to pollute, corrode and even block, only a few northern enterprises can develop and utilize, most northern enterprises are used for building heating or process water heating, and in summer of most southern enterprises or northern enterprises, the waste heat is directly discharged into the atmosphere, so that the heat waste and the heat pollution are caused. If the heat of the high-temperature waste water can be used as a driving heat source of a lithium bromide refrigerator, the lithium bromide refrigerator is a perfect supplementary scheme for air conditioning refrigeration, and the lithium bromide refrigerator can be fully utilized in the south and the north all the year round.
The lithium bromide absorption refrigerator is mainly composed of a generator, a condenser, an evaporator, an absorber, a heat exchanger, a circulating pump and the like. In the operation process of the lithium bromide absorption refrigerator, after the lithium bromide dilute solution is heated by a driving heat source in the generator, the refrigerant water in the solution is vaporized, and the concentration of the lithium bromide dilute solution in the generator is continuously increased along with the continuous vaporization of the refrigerant water and enters the absorber; the refrigerant water vapor enters the condenser, is cooled by cooling water in the condenser and then is condensed to form high-pressure low-temperature liquid water; when the refrigerant water in the condenser enters the evaporator through the throttle valve, the refrigerant water expands rapidly to be vaporized, and absorbs a large amount of heat of the frozen water in the evaporator in the vaporization process, thereby achieving the purpose of cooling and refrigeration; in the process, the low-temperature refrigerant water vapor enters the absorber, is absorbed by the lithium bromide concentrated solution in the absorber, the concentration of the solution is gradually reduced, and then is sent back to the generator by the circulating pump to complete the whole circulation.
The circulation is not stopped, and the cold energy is continuously produced.
However, the lithium bromide refrigerator generator usually adopts a shell-and-tube or plate-type equal-dividing-wall heat exchanger, which has high requirement on water quality, and the high-temperature wastewater has complex water quality components and is easy to cause pollution, corrosion and even blockage to the generator, so that the high-temperature wastewater cannot be directly used as a driving heat source of the lithium bromide absorption type unit. If the heat energy of the lithium bromide is transferred to clean medium water by adopting proper intermediate heat exchange equipment and then enters the lithium bromide unit, the process flow is complex, the occupied space is large, the investment cost is high, and heat transfer loss can be caused.
The boiling point of water can be reduced along with the reduction of the environmental pressure, for example, a negative pressure environment is artificially manufactured, so that the high-temperature waste water is subjected to flash evaporation, clean steam is generated and is directly conveyed into a generator to release heat, and the high-temperature waste water is directly used as a driving heat source of the lithium bromide refrigerating unit.
Disclosure of Invention
The invention provides a waste water type lithium bromide absorption refrigerating unit, the general structure of which comprises: the device comprises an upper horizontal cylinder, a lower horizontal cylinder, a heat exchanger on the left side, a driving heat source on the right side, two circulating pumps and a plurality of connecting pipelines, wherein the two ends of the upper horizontal cylinder are closed; wherein: the upper part inside the upper cylinder is provided with a condenser, the lower part inside the upper cylinder is provided with a generator, the upper part inside the lower cylinder is provided with an evaporator, and the lower part inside the lower cylinder is provided with an absorber; the lithium bromide dilute solution is heated by a driving heat source in the generator, the concentration of the solution is increased after part of refrigerant water is vaporized, the lithium bromide concentrated solution enters an absorber downwards, and refrigerant water vapor enters a condenser upwards; the refrigerant water vapor is cooled and condensed by cooling water in the condenser, then enters the evaporator through the throttle valve downwards, expands and vaporizes to absorb the heat of the frozen water in the evaporator, the refrigerant water vapor generated by vaporization enters the absorber downwards and is absorbed by the lithium bromide concentrated solution in the absorber, the solution concentration is reduced, and then the refrigerant water vapor is sent back to the generator upwards by the circulating pump; the other circulating pump is used for circulating spraying of refrigerant water in the evaporator; cooling water from the cooling tower enters an absorber to absorb heat, then enters a condenser to absorb heat, and finally is sent back to the cooling tower to release heat; the chilled water coming back from the air conditioner user enters the evaporator, and after heat release and temperature reduction, the low-temperature chilled water is sent to the air conditioner user; one side of the heat exchanger is high-temperature concentrated solution flowing out of the generator, and the other side of the heat exchanger is low-temperature dilute solution flowing out of the absorber, and the high-temperature concentrated solution and the low-temperature dilute solution exchange heat; the method is characterized in that: the driving heat source is a high-temperature wastewater flash evaporator, and the high-temperature wastewater flash evaporator flashes part of the high-temperature wastewater into steam which is used as the driving heat source of the high-temperature wastewater lithium bromide absorption refrigeration all-in-one machine.
The high-temperature wastewater flash evaporator is in the shape of an upright tank container and consists of an upper end enclosure, a lower end enclosure and an upright barrel in the middle, wherein the side surface of the upright barrel is connected with a water inlet pipe of high-temperature wastewater, the bottom of the lower end enclosure is externally connected with a drain pipe and a drainage pump, part of the high-temperature wastewater is flashed into steam, the steam flows upwards along the barrel, the steam enters a heat transfer pipe in a generator through a steam inlet pipe at the upper end enclosure to be condensed and release heat for heating lithium bromide dilute solution in the generator to generate refrigerant water steam, condensed water and non-condensable gas generated in the heat transfer pipe pass through the drain pipe and enter a steam-water separator, the separated non-condensable gas is discharged through a vacuum pump, and the condensed water enters a drain pipe of the high-temperature wastewater flash evaporator and is discharged together.
Drawings
FIG. 1 is an internal structure view of an embodiment of a waste water type lithium bromide absorption refrigerator set according to the present invention;
fig. 2 is a general diagram of an embodiment of the waste water type lithium bromide absorption refrigerating unit of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 shows an internal structure diagram of an embodiment of a waste water type lithium bromide absorption refrigerating unit according to the present invention.
The internal structure of the embodiment of the waste water type lithium bromide absorption refrigerating unit is as follows:
a waste water type lithium bromide absorption refrigerating unit is mainly composed of a generator 50, a condenser 40, an evaporator 60, an absorber 70, a heat exchanger 30, a plurality of pumps, a driving heat source, namely a high-temperature waste water flash evaporator 80 and the like.
When the lithium bromide aqueous solution is heated by the driving heat source, namely the flash steam of the high-temperature wastewater flash evaporator in the generator 50, the refrigerant water in the solution is vaporized; with the continuous vaporization of the refrigerant water, the concentration of the lithium bromide aqueous solution in the generator continuously rises, and then the lithium bromide aqueous solution enters the absorber 70 downwards; the refrigerant water vapor upwards enters the condenser 40, is cooled by cooling water in the condenser 40 and then is condensed to form high-pressure low-temperature refrigerant water; the low-temperature refrigerant water in the condenser enters the evaporator 60 downwards through the throttle valve, rapidly expands and vaporizes, and absorbs a large amount of heat of the frozen water in the evaporator 60 in the vaporization process, thereby achieving the purposes of temperature reduction and refrigeration; then, the low-temperature refrigerant water vapor generated by vaporization enters the absorber 70 downwards, is absorbed by the lithium bromide water solution in the absorber 70, the solution concentration is reduced, and is sent back to the generator upwards by the circulating pump 73, so that the whole cycle is completed. In addition, the circulating pump 63 is used for circulating spraying of the refrigerant water in the evaporator, thereby enhancing evaporation.
The cooling water first enters the absorber 70 through the cooling water inlet 71 to absorb heat, then enters the condenser 40 to absorb heat, and finally is sent to the cooling tower from the cooling water outlet 41. The chilled water enters the evaporator 60 from the chilled water inlet 61, and after heat release and temperature reduction, the low-temperature chilled water is sent to an air conditioner user from the chilled water outlet 62. The circulation is kept, and the refrigeration is continuous.
Because the lithium bromide dilute solution is cooled in the absorber 70, the temperature is lower, in order to save the heat for heating the dilute solution and improve the heat efficiency of the whole device, a heat exchanger 30 is added in the system, so that the high-temperature concentrated solution flowing out of the generator 50 and the low-temperature dilute solution flowing out of the absorber 70 exchange heat, and the temperature of the dilute solution entering the generator is improved.
The lithium bromide aqueous solution is heated in the generator 50 by the driving heat source, i.e. the flash steam of the high temperature wastewater flash evaporator, so that the refrigerant water in the solution is continuously vaporized. The high-temperature wastewater flash steam is a driving heat source of the embodiment of the wastewater type lithium bromide absorption refrigerating unit, and is a high-temperature wastewater flash evaporator 80, a vacuum environment is maintained by a vacuum pump, so that the high-temperature wastewater part entering the high-temperature wastewater flash evaporator is subjected to flash evaporation to generate flash steam, the flash steam enters a heat transfer pipe in the generator 50 through a steam inlet pipe 51 to be condensed and release heat, and the heat transfer steam is used for heating the solution in the generator 50 to generate refrigerant water steam. The condensed water generated in the heat transfer pipe is discharged through the drain pipe 52.
Fig. 2 is a general diagram of an embodiment of the waste water type lithium bromide absorption refrigerating unit.
The figure shows the general structure and the attached facilities of the waste water type lithium bromide absorption refrigerating unit embodiment of the invention.
Wherein the content of the first and second substances,
the embodiment profiles generally include: the device comprises a frame 5, an upper cylinder 10, a lower cylinder 20, a heat exchanger 30 and a driving heat source, namely a high-temperature wastewater flash evaporator 80; the frame 5 combines the upper cylinder 10, the lower cylinder 20, the heat exchanger 30 and a driving heat source, i.e., a high-temperature wastewater flash evaporator 80.
The subsidiary facilities include: cooling tower 90, air conditioning unit 100.
In the upper cylinder 10, a condenser 40 is horizontally arranged at the upper part, and a generator 50 is horizontally arranged at the lower part; in the lower cylinder 20, an evaporator 60 is horizontally disposed at an upper portion thereof, and an absorber 70 is horizontally disposed at a lower portion thereof.
A heat exchanger 30 is arranged at the right side of the frame 5 and in the middle of the right side of the upper cylinder and the lower cylinder.
The high-temperature wastewater flash evaporator 80 is vertically arranged at the left side of the frame 5, and is in the shape of an upright tank type container which consists of an upper end enclosure, a lower end enclosure and an upright cylinder body in the middle. The side of the vertical cylinder is connected with a water inlet pipe 81 of high-temperature waste water, the bottom of the lower end enclosure is externally connected with a water outlet pipe 82 and a water discharge pump 83, a part of the high-temperature waste water is flashed into steam, the steam flows upwards along the cylinder, enters a heat transfer pipe in the generator 50 through a steam inlet pipe 51 at the upper end enclosure, is condensed and releases heat, and is used for heating the lithium bromide dilute solution in the generator 50 to generate refrigerant water vapor. The condensed water and the non-condensable gas generated in the heat transfer pipe enter the steam-water separator 53 through the drain pipe, the separated non-condensable gas is discharged through the vacuum pump 54, and the condensed water enters the drain pipe 82 of the high-temperature wastewater flash evaporator 80 as a driving heat source and is discharged together with the discharged high-temperature wastewater through the drain pump 83.
The cooling water generated from the cooling tower 90 firstly enters the absorber in the lower cylinder 20 through the cooling water inlet 71 to absorb heat, then enters the condenser 40 of the upper cylinder 10 to absorb heat, and finally is sent back to the cooling tower from the cooling water outlet 41.
The chilled water from the air conditioning unit 100 enters the evaporator 60 in the lower cylinder 20 through the chilled water inlet 61, and after heat is released, the low-temperature chilled water returns to the air conditioning unit 100 through the chilled water outlet 62 to supply cold for users. The circulation is not stopped, and the cold energy is continuously produced.

Claims (2)

1. A waste water type lithium bromide absorption refrigerating unit, the general structure of which comprises: the device comprises an upper horizontal cylinder, a lower horizontal cylinder, a heat exchanger on the left side, a driving heat source on the right side, two circulating pumps and a plurality of connecting pipelines, wherein the two ends of the upper horizontal cylinder are closed; wherein: the upper part inside the upper cylinder is provided with a condenser, the lower part inside the upper cylinder is provided with a generator, the upper part inside the lower cylinder is provided with an evaporator, and the lower part inside the lower cylinder is provided with an absorber; the lithium bromide dilute solution is heated by a driving heat source in the generator, the concentration of the solution is increased after part of refrigerant water is vaporized, the lithium bromide concentrated solution enters an absorber downwards, and refrigerant water vapor enters a condenser upwards; the refrigerant water vapor is cooled and condensed by cooling water in the condenser, then enters the evaporator through the throttle valve downwards, expands and vaporizes to absorb the heat of the frozen water in the evaporator, the refrigerant water vapor generated by vaporization enters the absorber downwards and is absorbed by the lithium bromide concentrated solution in the absorber, the solution concentration is reduced, and then the refrigerant water vapor is sent back to the generator upwards by the circulating pump; the other circulating pump is used for circulating spraying of refrigerant water in the evaporator; cooling water from the cooling tower enters an absorber to absorb heat, then enters a condenser to absorb heat, and finally is sent back to the cooling tower to release heat; the chilled water coming back from the air conditioner user enters the evaporator, and after heat release and temperature reduction, the low-temperature chilled water is sent to the air conditioner user; one side of the heat exchanger is high-temperature concentrated solution flowing out of the generator, and the other side of the heat exchanger is low-temperature dilute solution flowing out of the absorber, and the high-temperature concentrated solution and the low-temperature dilute solution exchange heat; the method is characterized in that: the driving heat source is a high-temperature wastewater flash evaporator.
2. The waste water type lithium bromide absorption refrigeration unit according to claim 1, wherein: the high-temperature wastewater flash evaporator is in the shape of an upright tank-type container and consists of an upper end enclosure, a lower end enclosure and an upright cylinder in the middle, wherein the side surface of the upright cylinder is connected with a water inlet pipe of high-temperature wastewater, the bottom of the lower end enclosure is externally connected with a drain pipe and a drain pump, part of the high-temperature wastewater is flashed into steam, the steam flows upwards along the cylinder, and enters a generator through a steam inlet pipe at the upper end enclosure.
CN201910382668.XA 2019-04-27 2019-04-27 Waste water type lithium bromide absorption refrigerating unit Pending CN111854219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910382668.XA CN111854219A (en) 2019-04-27 2019-04-27 Waste water type lithium bromide absorption refrigerating unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910382668.XA CN111854219A (en) 2019-04-27 2019-04-27 Waste water type lithium bromide absorption refrigerating unit

Publications (1)

Publication Number Publication Date
CN111854219A true CN111854219A (en) 2020-10-30

Family

ID=72965959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910382668.XA Pending CN111854219A (en) 2019-04-27 2019-04-27 Waste water type lithium bromide absorption refrigerating unit

Country Status (1)

Country Link
CN (1) CN111854219A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102052799A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 Device for producing low-temperature water by using waste heat
CN104266402A (en) * 2014-10-20 2015-01-07 青岛橡建工程设计有限公司 Steam flash recycling device
CN104567079A (en) * 2014-12-31 2015-04-29 北京京诚科林环保科技有限公司 Hot-water lithium bromide absorption water cooler unit
CN107178928A (en) * 2017-06-23 2017-09-19 松下制冷（大连）有限公司 A kind of exhaust heat of slag flushing water extraction type cold/hot water machine of lithium bromide group
KR101851230B1 (en) * 2017-04-19 2018-04-23 (주)월드이엔씨 High efficiency absorption type heat pump system with increasing function for utilization rate from waste heat
CN208108536U (en) * 2018-03-29 2018-11-16 松下制冷（大连）有限公司 A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102052799A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 Device for producing low-temperature water by using waste heat
CN104266402A (en) * 2014-10-20 2015-01-07 青岛橡建工程设计有限公司 Steam flash recycling device
CN104567079A (en) * 2014-12-31 2015-04-29 北京京诚科林环保科技有限公司 Hot-water lithium bromide absorption water cooler unit
KR101851230B1 (en) * 2017-04-19 2018-04-23 (주)월드이엔씨 High efficiency absorption type heat pump system with increasing function for utilization rate from waste heat
CN107178928A (en) * 2017-06-23 2017-09-19 松下制冷（大连）有限公司 A kind of exhaust heat of slag flushing water extraction type cold/hot water machine of lithium bromide group
CN208108536U (en) * 2018-03-29 2018-11-16 松下制冷（大连）有限公司 A kind of low temperature exhaust heat reclaiming type lithium bromide absorption cold and hot water system

Similar Documents

Publication Publication Date Title
CN103058306B (en) Solar air-conditioning seawater desalting system
CN202216448U (en) Diffusion absorption refrigeration and vapor compression refrigeration combined recycle system
CN109827270A (en) A kind of air-conditioning system for evaporating cooling lithium bromide absorbing type refrigeration
CN102322705A (en) Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration
CN201535592U (en) Lithium bromide absorption water chilling unit adopting falling film generator
CN210663439U (en) High-temperature wastewater lithium bromide absorption refrigeration all-in-one machine
CN117029254A (en) Evaporator condensate water recycling system, control method and air conditioner
CN111306836A (en) High-temperature wastewater lithium bromide absorption refrigeration all-in-one machine
CN204084969U (en) For the closed circuit cooling system of refrigerating plant
CN210663440U (en) High-temperature wastewater secondary lithium bromide absorption type all-in-one machine
CN210663442U (en) Waste water direct-feeding lithium bromide absorption heat pump unit
CN111854219A (en) Waste water type lithium bromide absorption refrigerating unit
CN111486614A (en) High-temperature wastewater secondary lithium bromide absorption type all-in-one machine
CN212227430U (en) Direct cooling machine
CN210463389U (en) Immersed plate type ice storage system
CN210663441U (en) Lithium bromide absorption heat pump unit
CN2896147Y (en) Secondary-kind lithium-bromide absorbing type heat-pump machine group adopting air cooling
CN103185473B (en) Sewage-refrigerant phase-change heat exchanger
CN105865075A (en) Low-temperature hot water large-temperature-difference lithium bromide absorbing type refrigerating unit
CN202511521U (en) Refrigerator
CN217763970U (en) Waste heat source deep recovery type absorption refrigerating unit
CN2527898Y (en) Multiple energy sources complementary heating hot water supply and storage module for central air conditioner
CN210772848U (en) Continuous circulation refrigeration equipment
CN219199237U (en) High-temperature flue gas heat recycling device
CN202719803U (en) Low-temperature hot water type dual-level absorption-generation lithium bromide absorbing type water chiller unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
DD01 Delivery of document by public notice

Addressee: Kang Feng

Document name: Deemed withdrawal notice

DD01 Delivery of document by public notice
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20201030

WD01 Invention patent application deemed withdrawn after publication