CN201954828U - Efficient and energy-saving lithium bromide refrigerator - Google Patents
Efficient and energy-saving lithium bromide refrigerator Download PDFInfo
- Publication number
- CN201954828U CN201954828U CN2011200059632U CN201120005963U CN201954828U CN 201954828 U CN201954828 U CN 201954828U CN 2011200059632 U CN2011200059632 U CN 2011200059632U CN 201120005963 U CN201120005963 U CN 201120005963U CN 201954828 U CN201954828 U CN 201954828U
- Authority
- CN
- China
- Prior art keywords
- lithium bromide
- absorber
- reverse osmosis
- refrigerant
- bromide solution
- 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.)
- Expired - Fee Related
Links
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 28
- 239000006096 absorbing agent Substances 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 230000004087 circulation Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 15
- 238000002425 crystallisation Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000012141 concentrate Substances 0.000 abstract description 3
- 229940059936 lithium bromide Drugs 0.000 description 35
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- 229910052744 lithium Inorganic materials 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 238000007701 flash-distillation Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005374 membrane filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- -1 enter evaporimeter 1 Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Sorption Type Refrigeration Machines (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本实用新型公开了一种高效节能溴化锂制冷机，结构中包括蒸发器、吸收器和通过管道与此蒸发器和吸收器相连的闪蒸盘，蒸发器上设置有冷剂水循环系统，蒸发器内设置有制冷剂管路；所述吸收器通过管道依次与溴化锂溶液泵、一级高压泵、一级反渗透膜过滤器、中间水箱、二级高压泵、二级反渗透膜过滤器、混合器、吸收器相连，形成溴化锂溶液-冷剂水循环回路。本实用新型利用反渗透膜对溴化锂溶液进行浓缩，能够大幅减少热能的消耗，降低运行费用，同时减少换热器的使用数量，简化设备结构，节省设备投资和降低检修难度。
The utility model discloses a high-efficiency energy-saving lithium bromide refrigerator. The structure includes an evaporator, an absorber and a flash disk connected to the evaporator and the absorber through pipelines. The evaporator is provided with a refrigerant water circulation system. A refrigerant pipeline is provided; the absorber is sequentially connected with the lithium bromide solution pump, the first-stage high-pressure pump, the first-stage reverse osmosis membrane filter, the intermediate water tank, the second-stage high-pressure pump, the second-stage reverse osmosis membrane filter, and the mixer through the pipeline. , and the absorber are connected to form a lithium bromide solution-refrigerant water circulation loop. The utility model uses the reverse osmosis membrane to concentrate the lithium bromide solution, which can greatly reduce the consumption of heat energy, reduce the operation cost, reduce the number of heat exchangers used, simplify the equipment structure, save equipment investment and reduce the difficulty of maintenance.
Description
Technical field
The utility model relates to a kind of refrigeration plant, especially a kind of energy-efficient lithium bromide refrigerator.
Background technology
Referring to accompanying drawing 1, domestic and international existing lithium bromide refrigerator all adopts the mode concentrated solution to the bromize lithium dilute solution heating, its thermal source has steam type, direct combustion type, hot-water type, need to consume a large amount of energy, and its Energy Efficiency Ratio is less, operating cost is very big, is example with a 0.6MPa steam type 5,000,000 Kcal/h types, and the expense that only consumed heat energy in every month just reaches 850,000 yuan.In addition, existing lithium bromide refrigerating machine heat exchanger is a lot, has a lot of positions of revealing, and very big to the maintenance difficulty of vacuum, its maintenance difficulty and expense are also corresponding bigger.
The utility model content
The technical problems to be solved in the utility model provides a kind of energy-efficient lithium bromide refrigerator, utilize reverse osmosis membrane that lithium-bromide solution is concentrated, can significantly reduce consumption of heat energy, reduce operating cost, reduce the usage quantity of heat exchanger simultaneously, the simplified apparatus structure is saved equipment investment and is reduced the maintenance difficulty.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of energy-efficient lithium bromide refrigerator, comprise in the structure evaporimeter, absorber with by the pipeline flash distillation dish that links to each other with absorber of evaporimeter therewith, evaporimeter is provided with the water as refrigerant circulatory system, is provided with refrigerant line in the evaporimeter;
Described absorber links to each other with lithium-bromide solution pump, one-level high-pressure pump, first-stage reverse osmosis film filter, intermediate water tank, secondary high-pressure pump, two-pass reverse osmosis film filter, blender, absorber successively by pipeline, forms lithium-bromide solution-water as refrigerant closed circuit;
Wherein, outlet links to each other with blender with intermediate water tank by pipeline respectively with lithium-bromide solution in water as refrigerant outlet on the first-stage reverse osmosis film filter, and outlet links to each other with blender with the flash distillation dish by pipeline respectively the water as refrigerant outlet on the two-pass reverse osmosis film filter with lithium-bromide solution.
As a kind of optimal technical scheme of the present utility model, the one-level high-pressure pump in described lithium-bromide solution-water as refrigerant closed circuit, first-stage reverse osmosis film filter, secondary high-pressure pump and two-pass reverse osmosis film filter all are set up in parallel two covers.
As a kind of optimal technical scheme of the present utility model, the pipeline between described lithium-bromide solution pump and the one-level high-pressure pump is provided with the anti-crystallization heater of a lithium-bromide solution.
As a kind of optimal technical scheme of the present utility model, described absorber inner tip is provided with spray dish I, and spray dish I is continuous therewith by pipeline for blender.
As a kind of optimal technical scheme of the present utility model, the described water as refrigerant circulatory system comprises the spray dish II that is arranged on the evaporimeter inner tip and is arranged on the refrigerant pump evaporimeter lower end, that link to each other with spray dish II by pipeline.
Adopt the beneficial effect that technique scheme produced to be:
Referring to accompanying drawing 1,2, the existing refrigeration machine of the utility model has reduced large quantities of heat transmission equipments such as high pressure generator, low pressure generator, condenser, high-temperature heat-exchanging, cryogenic heat exchanger, condensed water regenerator, equipment volume and weight significantly reduce, equipment investment significantly reduces, and the maintenance of equipment is also more easy simultaneously;
The utility model adopts the high-pressure membrane filter type to replace the Steam Heating mode and concentrates lithium-bromide solution, significantly saved the thermal energy consumption of process of refrigerastion, with a 0.6MPa steam type 5,000,000 Kcal/h types is example, existing lithium bromide refrigerator consumes 7.5 tons/hour of steam, and the utility model refrigeration machine only is 0.2 ton/hour, annual by 6 months runtimes, can save 5,100,000 yuan in 1 year.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of existing lithium bromide refrigerator.
Fig. 2 is the structural representation of the energy-efficient lithium bromide refrigerator of the utility model.
Among the figure: 1, evaporimeter; 2, absorber; 21, spray dish I; 3, refrigerant line; 4, lithium-bromide solution pump; 5, the anti-crystallization heater of lithium-bromide solution; 6, one-level high-pressure pump; 7, first-stage reverse osmosis film filter; 8, intermediate water tank; 9, secondary high-pressure pump; 10, two-pass reverse osmosis film filter; 11, blender; 12, flash distillation dish; 131, spray dish II; 132, refrigerant pump; 14, pipeline.
The specific embodiment
Accompanying drawing 1 is the structural representation of existing lithium bromide refrigerator, compositions such as its critical piece comprises high pressure generator, low pressure generator, condenser, absorber, evaporimeter, high-temperature heat-exchanging, cryogenic heat exchanger, coagulate water-to-water heat exchanger and solution pump, cryogenic fluid pump.
Its refrigeration principle is: cold-producing medium is cooled off from the cryogenic coolant water after the condenser decompression throttling (because of evaporation is absorbed heat) in the evaporimeter heat exchanger tube, evaporation becomes water as refrigerant steam behind the water as refrigerant absorption refrigeration agent heat, entering absorber is absorbed by bromize lithium concentrated solution, bromize lithium concentrated solution becomes weak solution, bromize lithium dilute solution in the absorber is by the past low temperature heat exchanger of lithium-bromide solution pumping, coagulate water-to-water heat exchanger, temperature raises gradually behind the high-temperature heat exchanger, enter high pressure generator at last, weak solution is by the thermal source Steam Heating in high pressure generator, become the high temperature bromize lithium concentrated solution, the high temperature concentrated solution high-temperature heat exchanger of flowing through, temperature is lowered, enter low pressure generator, the indirect steam that is produced by high pressure generator in low pressure generator heats once more, enters low temperature heat exchanger then, and temperature is reduced once more, enter absorber then, drip and drench on refrigerant pipe, absorb the water as refrigerant steam of flash-pot, become bromize lithium dilute solution; On the other hand, the indirect steam that the bromize lithium dilute solution evaporation produces in high pressure generator, enter low pressure generator and condenser is cooled, through the decompression throttling, become cryogenic coolant water, enter evaporimeter, the cryogenic coolant water droplet is drenched on refrigerant pipe by refrigerant pump, because of evaporation heat absorption cooling enters the cold-producing medium of evaporimeter, thereby reach the refrigeration purpose; Rely on solution, two groups of evaporative condensers of water as refrigerant (refrigerant vapour is an absorption condensation) circulatory system organically to combine, by optimal allocation to solution internal circulating load and refrigerating capacity, realize parameter distributing rationally between two circulations such as temperature, pressure, concentration, carry out so repeatedly with cocycle, finally reach the purpose of producing low-temperature cold water.
Referring to accompanying drawing 2, comprise in the structure of a specific embodiment of the utility model evaporimeter 1, absorber 2 with by the pipeline 14 flash distillation dish 12 that links to each other with absorber 2 of evaporimeter 1 therewith, evaporimeter 1 is provided with the water as refrigerant circulatory system, this water as refrigerant circulatory system comprise the spray dish II 131 that is arranged on evaporimeter 1 inner tip be arranged on evaporimeter 1 lower end, by pipeline 14 and the refrigerant pump 132 that spray dish II 131 links to each other, be provided with refrigerant line 3 in the evaporimeter 1; Absorber 2 links to each other with the spray dish I 21 of lithium-bromide solution pump 4, the anti-crystallization heater 5 of lithium-bromide solution, two cover one-level high-pressure pumps 6, two cover first-stage reverse osmosis film filters 7, intermediate water tank 8, two cover secondary high-pressure pumps 9, two cover two-pass reverse osmosis film filters 10, blender 11, absorber 2 inner tip successively by pipeline 14, forms lithium-bromide solution-water as refrigerant closed circuit; Wherein, outlet links to each other with blender 11 with intermediate water tank 8 by pipeline 14 respectively with lithium-bromide solution in water as refrigerant outlet on the first-stage reverse osmosis film filter 7, and outlet links to each other with blender 11 with flash distillation dish 12 by pipeline 14 respectively the water as refrigerant outlet on the two-pass reverse osmosis film filter 10 with lithium-bromide solution.
Refrigeration principle of the present utility model is: the water as refrigerant that cold-producing medium is formed after the decompression throttling by the purified water from the secondary membrane filtration in evaporimeter 1 heat exchanger tube (because of the evaporation heat absorption) cooling, evaporation becomes water as refrigerant steam behind the water as refrigerant absorption refrigeration agent heat, entering absorber 2 is absorbed by bromize lithium concentrated solution, bromize lithium concentrated solution becomes weak solution, the weak solution that absorber is 2 li is sent to the anti-crystallization heater 5 of lithium-bromide solution by lithium-bromide solution pump 4, enter first-stage reverse osmosis film filter 7 by one-level high-pressure pump 6 then, bromize lithium concentrated solution enters blender 11, clear liquid enters intermediate water tank 8, enter two-pass reverse osmosis film filter 10 by secondary high-pressure pump 9 then, bromize lithium concentrated solution enter concentrated solution that blender 11 comes out with the one-level film mix after throttling enter spray dish I 21 in the absorber 2, the water as refrigerant steam that absorption is come from evaporimeter 1, become weak solution, the purified water of coming out from two-pass reverse osmosis film filter 10 is through the decompression throttling, become water as refrigerant, enter evaporimeter 1, water as refrigerant is transported on the spray dish II 132 and drips by refrigerant pump 132 and drench on refrigerant line 3, because of evaporation heat absorption cooling enters the cold-producing medium of evaporimeter 1, thereby reach the refrigeration purpose.
Reverse osmosis membrane filtration of the present utility model system has designed two covers altogether, and every cover includes one-level high-pressure pump 6, first-stage reverse osmosis film filter 7, secondary high-pressure pump 9, two-pass reverse osmosis film filter 10; In use, two cover membrane filtration systems can be used alternatingly or the using and the reserved, avoid because of overhauling or clean the compressor emergency shutdown that film causes.
The anti-crystallization heater 5 of lithium-bromide solution of the present utility model is mainly used in the regulator solution temperature, prevents from that the lithium-bromide solution temperature is low to cause crystallization; General temperature controllable is at 40 ℃-45 ℃, and this also is the place of the unique use heat energy of the utility model, but its use amount is very small.
The utility model so the part that contacts with lithium-bromide solution can be selected the 316L stainless steel for use in the middle of the equipment, is invested not too largely because equipment amount significantly reduces like this, and the while can solve the difficult problem of lithium-bromide solution to equipment corrosion most effectively.
The existing refrigeration machine of the utility model has reduced large quantities of heat transmission equipments such as high pressure generator, low pressure generator, condenser, high-temperature heat-exchanging, cryogenic heat exchanger, condensed water regenerator, equipment volume and weight significantly reduce, equipment investment significantly reduces, and the maintenance of equipment is also more easy simultaneously.
The utility model adopts the high-pressure membrane filter type to replace the Steam Heating mode and concentrates lithium-bromide solution, significantly saved the thermal energy consumption of process of refrigerastion, with a 0.6MPa steam type 5,000,000 Kcal/h types is example, existing lithium bromide refrigerator consumes 7.5 tons/hour of steam, and the utility model refrigeration machine only is 0.2 ton/hour, annual by 6 months runtimes, can save 5,100,000 yuan in 1 year.
Foregoing description only proposes as the enforceable technical scheme of the utility model, not as the single restrictive condition to its technical scheme itself.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200059632U CN201954828U (en) | 2011-01-11 | 2011-01-11 | Efficient and energy-saving lithium bromide refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200059632U CN201954828U (en) | 2011-01-11 | 2011-01-11 | Efficient and energy-saving lithium bromide refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN201954828U true CN201954828U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200059632U Expired - Fee Related CN201954828U (en) | 2011-01-11 | 2011-01-11 | Efficient and energy-saving lithium bromide refrigerator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528259A (en) * | 2013-09-28 | 2014-01-22 | 昆山市周市溴化锂溶液厂 | Lithium bromide absorption refrigerator of pre-mixture of flash steam and gas-phase surface active agent |
| CN103673373A (en) * | 2013-12-17 | 2014-03-26 | 南京理工大学 | Two-stage membrane concentration type absorption refrigerating system |
| US9987568B2 (en) | 2013-08-09 | 2018-06-05 | Carrier Corporation | Purge system for chiller system |
| CN109443065A (en) * | 2018-12-01 | 2019-03-08 | 中节能城市节能研究院有限公司 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
| US10584906B2 (en) | 2013-08-09 | 2020-03-10 | Carrier Corporation | Refrigeration purge system |
| US11686515B2 (en) | 2018-12-03 | 2023-06-27 | Carrier Corporation | Membrane purge system |
| US11911724B2 (en) | 2018-12-03 | 2024-02-27 | Carrier Corporation | Enhanced refrigeration purge system |
| US11913693B2 (en) | 2018-12-03 | 2024-02-27 | Carrier Corporation | Enhanced refrigeration purge system |
| US11976860B2 (en) | 2018-12-03 | 2024-05-07 | Carrier Corporation | Enhanced refrigeration purge system |
| CN119063291A (en) * | 2024-08-26 | 2024-12-03 | 中海石油(中国)有限公司 | A lithium bromide refrigeration unit for offshore oil platforms and its anti-leakage sealing method |
-
2011
- 2011-01-11 CN CN2011200059632U patent/CN201954828U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9987568B2 (en) | 2013-08-09 | 2018-06-05 | Carrier Corporation | Purge system for chiller system |
| US10584906B2 (en) | 2013-08-09 | 2020-03-10 | Carrier Corporation | Refrigeration purge system |
| CN103528259A (en) * | 2013-09-28 | 2014-01-22 | 昆山市周市溴化锂溶液厂 | Lithium bromide absorption refrigerator of pre-mixture of flash steam and gas-phase surface active agent |
| CN103673373A (en) * | 2013-12-17 | 2014-03-26 | 南京理工大学 | Two-stage membrane concentration type absorption refrigerating system |
| CN109443065A (en) * | 2018-12-01 | 2019-03-08 | 中节能城市节能研究院有限公司 | A kind of absorption energy storage equipment of big concentration difference based on active crystallization technique |
| CN109443065B (en) * | 2018-12-01 | 2023-12-26 | 中节能城市节能研究院有限公司 | Large concentration difference absorption type energy storage device based on active crystallization technology |
| US11686515B2 (en) | 2018-12-03 | 2023-06-27 | Carrier Corporation | Membrane purge system |
| US11911724B2 (en) | 2018-12-03 | 2024-02-27 | Carrier Corporation | Enhanced refrigeration purge system |
| US11913693B2 (en) | 2018-12-03 | 2024-02-27 | Carrier Corporation | Enhanced refrigeration purge system |
| US11976860B2 (en) | 2018-12-03 | 2024-05-07 | Carrier Corporation | Enhanced refrigeration purge system |
| CN119063291A (en) * | 2024-08-26 | 2024-12-03 | 中海石油(中国)有限公司 | A lithium bromide refrigeration unit for offshore oil platforms and its anti-leakage sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20170111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |