CN102287958B - Lithium bromide solution absorbing type refrigerating process of air-conditioner - Google Patents
Lithium bromide solution absorbing type refrigerating process of air-conditioner Download PDFInfo
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- CN102287958B CN102287958B CN201110165350XA CN201110165350A CN102287958B CN 102287958 B CN102287958 B CN 102287958B CN 201110165350X A CN201110165350X A CN 201110165350XA CN 201110165350 A CN201110165350 A CN 201110165350A CN 102287958 B CN102287958 B CN 102287958B
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- Prior art keywords
- generator
- evaporimeter
- lithium
- bromide solution
- check valve
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 229940059936 lithium bromide Drugs 0.000 claims description 65
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000001704 evaporation Methods 0.000 claims description 12
- 230000008020 evaporation Effects 0.000 claims description 12
- 230000001143 conditioned effect Effects 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 abstract 3
- 239000002918 waste heat Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
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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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
一种溴化锂溶液吸收式空调的制冷工艺，涉及一种空调的制冷工艺，包括有制冷设备，冷媒水换热器、蒸发器、盘管冷凝器、单向阀、发生器、加热器，其特征在于，蒸发器2和第一发生器8及第二发生器11之间用管道连接，管道上连接有蒸发器单向阀4、蒸发器与发生器相连的单向阀5、第二发生器单向阀6、第一发生器单向阀7和盘管冷凝器3，蒸发器2的液体中设有冷媒水换热器1；发生器的液体中设有发生器加热器，冷媒水换热器1与空调空间相连。本发明制冷循环工艺简单，无转动设备，且体积小，涉及设备少、可利用发动机余热制冷。
A refrigeration process of lithium bromide solution absorption type air conditioner, relates to a refrigeration process of air conditioner, including refrigeration equipment, refrigerant water heat exchanger, evaporator, coil condenser, one-way valve, generator, heater, its characteristics That is, the evaporator 2 is connected with the first generator 8 and the second generator 11 with a pipeline, and the pipeline is connected with the evaporator check valve 4, the check valve 5 that the evaporator is connected to the generator, and the second generator One-way valve 6, first generator one-way valve 7 and coil condenser 3, refrigerant water heat exchanger 1 is arranged in the liquid of evaporator 2; generator heater is arranged in generator liquid, and refrigerant water is exchanged The heater 1 is connected with the air-conditioned space. The invention has a simple refrigeration cycle process, no rotating equipment, small volume, less equipment involved, and can use the waste heat of the engine to refrigerate.
Description
Technical field
The present invention relates to a kind of refrigerating method of air-conditioning, particularly relate to a kind of refrigerating method of lithium-bromide solution absorption type air-conditioner.
Background technology
At present, the method for known lithium-bromide solution absorption refrigeration be with water as cold-producing medium, lithium bromide is as absorbent.Obtain cold by evaporation of water.Lithium bromide water absorption refrigerating plant mainly is made up of several parts such as generator, condenser, evaporimeter, absorber, heat exchanger, circulating pumps.In the lithium bromide water absorption refrigerating plant running, after lithium bromide water solution was heated in generator, the water in the solution was constantly vaporized; Along with the continuous vaporization of water, the lithium bromide water solution concentration in the generator constantly raises, and enters absorber; Steam enters condenser, condenses behind the cooling water temperature in the device that is condensed, and becomes the aqueous water of high pressure low temperature; When the water in the condenser enters evaporimeter, rapid expansion and vaporizing, and in vaporescence a large amount of heats that absorb chilled water in the evaporimeters, thereby reach the purpose of cooling refrigeration; In this process, the water at low temperature steam enters absorber, and the lithium bromide water solution that is absorbed in the device absorbs, and solution concentration progressively reduces, and sends generator back to by circulating pump again, finishes a kind of refrigeration cycle.So circulation is gone down, and produces cold continuously.Generator in the kind of refrigeration cycle of practical application can be one or two, is respectively double-effect lithium bromide absorption type kind of refrigeration cycle and mono-potency lithium bromide Absorption Cooling System.Existing lithium-bromide solution absorption-type refrigerating method has following deficiency, is exactly that the equipment that relates to of kind of refrigeration cycle is more, and needs the rotating machinery delivered solution between container with this usefulness of pump.This has not only increased the manufacturing cost of system, has also increased the difficulty of system's miniaturization, makes it be not easy to use at vehicle, marine air-conditioning system.
Summary of the invention
The object of the present invention is to provide a kind of refrigerating method of lithium-bromide solution absorption type air-conditioner, kind of refrigeration cycle technology of the present invention is simple, no rotating machinery, and volume is little, relate to equipment few, can utilize the engine exhaust heat refrigeration.
The objective of the invention is to be achieved through the following technical solutions:
A kind of refrigerating method of lithium-bromide solution absorption type air-conditioner, include the check valve that chilled water heat exchanger, evaporimeter, coil condenser, evaporimeter link to each other with first generator, check valve, the second generator check valve, the first generator check valve, first generator, second generator, the heater that evaporimeter links to each other with second generator, the check valve that no pump, evaporimeter link to each other with first generator by evaporimeter respectively, evaporimeter are connected with pipeline with second generator with first generator with the check valve that second generator links to each other; First generator is by the first generator check valve, and second generator is connected to coil condenser jointly by the second generator check valve, and coil condenser inserts evaporimeter by pipeline;
Be marked with the water that occupies its partial volume in the described evaporimeter, be provided with the chilled water heat exchanger in the liquid of evaporimeter, the chilled water heat exchanger links to each other with conditioned space; First generator and second generator are marked with the lithium-bromide solution that occupies its partial volume; Be provided with the first generator heater in the liquid of first generator, be provided with the second generator heater in the liquid of second generator; The first generator heater heats the lithium-bromide solution in first generator, and the second generator heater heats the lithium-bromide solution in second generator, and the two is heating alternately;
The course of work: when the first generator heater heats lithium-bromide solution in first generator, steam partial pressure in first generator raises, the first generator check valve is opened, steam enters coil condenser by pipeline, enters evaporimeter by the condensed water near environment temperature behind the coil condenser; In this course, lithium-bromide solution in second generator has higher concentration, steam partial pressure in second generator is lower than the pressure in the evaporimeter, the check valve that evaporimeter links to each other with second generator is opened, water evaporation in the evaporimeter, the check valve that steam links to each other with second generator through evaporimeter and pipeline enter second generator and are absorbed lithium-bromide solution concentration reduction simultaneously by wherein lithium-bromide solution; When lithium-bromide solution concentration dropped to the water that can not effectively evaporate in the generator, the second generator heater began heating, and the first generator heater stops heating; When the second generator heater heats lithium-bromide solution in second generator, steam partial pressure in second generator raises, the second generator check valve is opened, and steam enters coil condenser by pipeline, enters evaporimeter by the condensed water near environment temperature behind the coil condenser; In this course, lithium-bromide solution in first generator has higher concentration, steam partial pressure in first generator is lower than the pressure in the evaporimeter, the check valve that evaporimeter links to each other with first generator is opened, water evaporation in the evaporimeter, the check valve that steam links to each other with first generator through evaporimeter and pipeline enter first generator and are absorbed lithium-bromide solution concentration reduction simultaneously by wherein lithium-bromide solution; When lithium-bromide solution concentration drops to the water that can not effectively evaporate in the evaporimeter, the first generator heater begins heating, the second generator heater stops heating, so circulation, water in the evaporimeter is constantly evaporated, the water evaporation descends its temperature, and the chilled water heat exchanger is delivered to conditioned space with cold.
The refrigerating method of described a kind of lithium-bromide solution absorption type air-conditioner is characterized in that, the refrigeration system of described lithium-bromide solution absorption type air-conditioner is the vacuum shape.
Advantage of the present invention and effect are:
1. to have overcome the refrigeration system volume of existing lithium-bromide solution sorption type refrigerating technology big in the present invention, relates to the many shortcomings of equipment, provides a kind of kind of refrigeration cycle simple, do not comprise the lithium-bromide solution suction type refrigerating technology of any moving equipment.
Because this refrigeration system volume is little, and there is not any rotating machinery, be highly suitable for vehicle, this class installing space of boats and ships is limited, and exist the occasion of engine exhaust heat to use, and has given full play to the intrinsic advantage that the lithium-bromide solution absorption refrigeration can utilize low-grade heat source.
Description of drawings
Fig. 1 is refrigeration process flow chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Among the figure: the check valve 5 that the check valve 4 that chilled water heat exchanger 1, evaporimeter 2, coil condenser 3, evaporimeter link to each other with first generator, evaporimeter link to each other with second generator, the second generator check valve 6, the first generator check valve 7, first generator 8, the first generator heater 9, the second generator heater 10, second generator 11.
Connect with pipeline between evaporimeter 2 and first generator 8 and second generator 11, be connected with the check valve 4 that evaporimeter links to each other with first generator, check valve 5, the second generator check valve 6, the first generator check valve 7 and the coil condenser 3 that evaporimeter links to each other with second generator on the pipeline.
More than the system that formed by evaporimeter and generator and pipeline, check valve etc. vacuumize.
Be marked with the water that occupies its partial volume in the evaporimeter 2, first generator 8 and second generator 11 are marked with the lithium-bromide solution that occupies its partial volume.Indexs such as the ratio of the water of partial volume or the lithium-bromide solution of partial volume, pressure, vacuum can be with reference to the relevant refrigeration parameters selection of existing absorption lithium bromide refrigerating medium.
Chilled water heat exchanger 1 is arranged in the liquid of evaporimeter 2;
The first generator heater 9 is arranged in the liquid of first generator 8;
The second generator heater 10 is arranged in the liquid of second generator 11.
The first generator heater 9 and the second generator heater 10 alternately heat the lithium-bromide solution in first generator 8 and second generator 11.After liquid in evaporimeter and the generator injected, the water in the evaporimeter 2 is rapid evaporation owing to the existence of lithium-bromide solution in the system.Lithium-bromide solution in the generator comes the water vapor concentration of flash-pot thinning owing to having absorbed.In order to make the water in the evaporimeter 2 constantly evaporate, the lithium-bromide solution that alternately heats in first generator 8 and second generator 11 with the first generator heater 9 and the second generator heater 10 makes its evaporation and concentration.When the lithium-bromide solution in the first generator heater, 9 heating, first generator 8, steam partial pressure in first generator 8 raises, the first generator check valve 7 is opened, steam enters coil condenser 3 by pipeline, enters evaporimeter 2 by the condensed water near environment temperature behind the coil condenser 3; In this course, lithium-bromide solution in second generator 11 has higher concentration, steam partial pressure in second generator 11 is lower than the pressure in the evaporimeter 2, the check valve 5 that evaporimeter links to each other with second generator is opened, water evaporation in the evaporimeter 2, the check valve 5 that steam links to each other with second generator through evaporimeter and pipeline enter second generator 11 and by wherein lithium-bromide solution absorption, lithium-bromide solution concentration decreases simultaneously, when lithium-bromide solution concentration drops to the water that can not effectively evaporate in the generator 2, the second generator heater 10 begins heating, and the first generator heater 9 stops heating.When the lithium-bromide solution in the second generator heater, 10 heating, second generator 11, steam partial pressure in second generator 11 raises, the second generator check valve 6 is opened, steam enters coil condenser 3 by pipeline, enters evaporimeter 2 by the condensed water near environment temperature behind the coil condenser 3; In this course, lithium-bromide solution in first generator 8 has higher concentration, steam partial pressure in first generator 8 is lower than the pressure in the evaporimeter 2, the check valve 4 that evaporimeter links to each other with first generator is opened, water evaporation in the evaporimeter 2, the check valve 4 that steam links to each other with first generator through evaporimeter and pipeline enter first generator 8 and by wherein lithium-bromide solution absorption, lithium-bromide solution concentration decreases simultaneously, when lithium-bromide solution concentration drops to the water that can not effectively evaporate in the evaporimeter 2, the first generator heater 9 begins heating, and the second generator heater 10 stops heating.So circulation is gone down, and the water in the evaporimeter 2 is constantly evaporated, and the water evaporation descends its temperature, and chilled water heat exchanger 1 is delivered to conditioned space with cold.
Claims (2)
1. the refrigerating method of a lithium-bromide solution absorption type air-conditioner, include the chilled water heat exchanger, evaporimeter, coil condenser, the check valve that evaporimeter links to each other with first generator, the check valve that evaporimeter links to each other with second generator, the second generator check valve, the first generator check valve, first generator, second generator, heater, it is characterized in that, the check valve (4) that no pump, evaporimeter (2) link to each other with first generator by evaporimeter respectively, evaporimeter is connected with pipeline with second generator (11) with first generator (8) with the check valve (5) that second generator links to each other; First generator (8) is by the first generator check valve (7), and second generator (11) is connected to coil condenser (3) jointly by the second generator check valve (6), and coil condenser (3) inserts evaporimeter (2) by pipeline;
Described evaporimeter is marked with the water that occupies its partial volume in (2), is provided with chilled water heat exchanger (1) in the liquid of evaporimeter (2), and chilled water heat exchanger (1) links to each other with conditioned space; First generator (8) and second generator (11) are marked with the lithium-bromide solution that occupies its partial volume; Be provided with the first generator heater (9) in the liquid of first generator (8), be provided with the second generator heater (10) in the liquid of second generator (11); Lithium-bromide solution in the first generator heater (9) heating first generator (8), the lithium-bromide solution in the second generator heater (10) heating second generator (11), the two is heating alternately;
The course of work: when the lithium-bromide solution in the first generator heater (9) heating first generator (8), steam partial pressure in first generator (8) raises, the first generator check valve (7) is opened, steam enters coil condenser (3) by pipeline, enters evaporimeter (2) by the condensed water near environment temperature behind the coil condenser (3); In this course, lithium-bromide solution in second generator (11) has higher concentration, steam partial pressure in second generator (11) is lower than the pressure in the evaporimeter (2), the check valve (5) that evaporimeter links to each other with second generator is opened, water evaporation in the evaporimeter (2), the check valve (5) that steam links to each other with second generator through evaporimeter and pipeline enter second generator (11) and are absorbed while lithium-bromide solution concentration reduction by wherein lithium-bromide solution; When lithium-bromide solution concentration dropped to the water that can not effectively evaporate in the generator (2), the second generator heater (10) began heating, and the first generator heater (9) stops heating; When the lithium-bromide solution in the second generator heater (10) heating second generator (11), steam partial pressure in second generator (11) raises, the second generator check valve (6) is opened, steam enters coil condenser (3) by pipeline, enters evaporimeter (2) by the condensed water near environment temperature behind the coil condenser (3); In this course, lithium-bromide solution in first generator (8) has higher concentration, steam partial pressure in first generator (8) is lower than the pressure in the evaporimeter (2), the check valve (4) that evaporimeter links to each other with first generator is opened, water evaporation in the evaporimeter (2), the check valve (4) that steam links to each other with first generator through evaporimeter and pipeline enter first generator (8) and are absorbed while lithium-bromide solution concentration reduction by wherein lithium-bromide solution; When lithium-bromide solution concentration drops to the water that can not effectively evaporate in the evaporimeter (2), the first generator heater (9) begins heating, the second generator heater (10) stops heating, so circulation, water in the evaporimeter (2) is constantly evaporated, the water evaporation descends its temperature, and chilled water heat exchanger (1) is delivered to conditioned space with cold.
2. the refrigerating method of a kind of lithium-bromide solution absorption type air-conditioner according to claim 1 is characterized in that, the refrigeration system of described lithium-bromide solution absorption type air-conditioner is the vacuum shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110165350XA CN102287958B (en) | 2011-06-20 | 2011-06-20 | Lithium bromide solution absorbing type refrigerating process of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110165350XA CN102287958B (en) | 2011-06-20 | 2011-06-20 | Lithium bromide solution absorbing type refrigerating process of air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102287958A CN102287958A (en) | 2011-12-21 |
| CN102287958B true CN102287958B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110165350XA Expired - Fee Related CN102287958B (en) | 2011-06-20 | 2011-06-20 | Lithium bromide solution absorbing type refrigerating process of air-conditioner |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512267A (en) * | 2013-09-28 | 2014-01-15 | 昆山市周市溴化锂溶液厂 | Lithium bromide solution absorption refrigeration device for gas phase adding interfacial agent |
| CN103512265A (en) * | 2013-09-28 | 2014-01-15 | 昆山市周市溴化锂溶液厂 | Lithium bromide solution absorption type refrigerating device |
| CN103512268A (en) * | 2013-09-28 | 2014-01-15 | 昆山市周市溴化锂溶液厂 | Lithium bromide solution absorption compression type refrigerating device |
| CN113563148B (en) * | 2021-07-26 | 2023-06-16 | 华南理工大学 | Coal-to-natural gas and methanol poly-generation system and method integrating waste heat refrigeration |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61125562A (en) * | 1984-11-24 | 1986-06-13 | 日立造船株式会社 | Absorption type refrigeration system |
| JPH1026437A (en) * | 1996-07-11 | 1998-01-27 | Paloma Ind Ltd | Absorption type air-conditioner |
| CN2319758Y (en) * | 1997-07-03 | 1999-05-19 | 朱修治 | Pump-less lithium bromide absorption refrigerator |
| CN2342286Y (en) * | 1998-09-15 | 1999-10-06 | 孙卫忠 | Lithium bromide absorption household air conditioner |
| FR2805493A1 (en) * | 2000-02-28 | 2001-08-31 | Condat Val D Or | Air conditioning system for automotive vehicle, uses exhaust gases as an energy source for the system |
| US6694772B2 (en) * | 2001-08-09 | 2004-02-24 | Ebara Corporation | Absorption chiller-heater and generator for use in such absorption chiller-heater |
| CN101706175A (en) * | 2009-11-04 | 2010-05-12 | 靳启海 | Pump-free lithium bromide air-conditioning system |
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2011
- 2011-06-20 CN CN201110165350XA patent/CN102287958B/en not_active Expired - Fee Related
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| CN102287958A (en) | 2011-12-21 |
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