CN201954828U - Efficient and energy-saving lithium bromide refrigerator - Google Patents

Efficient and energy-saving lithium bromide refrigerator Download PDF

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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
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CN
China
Prior art keywords
lithium
refrigerant
absorber
reverse osmosis
water
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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
Application number
CN2011200059632U
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Chinese (zh)
Inventor
谢奎狮
熊永安
杨建文
焦翠凤
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HEBEI YUXING BIOLOGICAL ENGINEERING Co Ltd
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HEBEI YUXING BIOLOGICAL ENGINEERING Co Ltd
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Priority to CN2011200059632U priority Critical patent/CN201954828U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • 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

Abstract

The utility model discloses an efficient and energy-saving lithium bromide refrigerator, of which the structure includes an evaporator, an absorber and a flash evaporation plate connected with the evaporator and the absorber through pipelines. A refrigerant water circulating system is arranged on the evaporator, and a refrigerant pipeline is arranged in the evaporator; and the absorber is connected with a lithium bromide solution pump, a first-stage high pressure pump, a first-stage reverse osmosis membrane filter, an intermediate water tank, a second-stage high pressure pump, a second-stage reverse osmosis membrane filter, a mixer and the absorber respectively, thereby forming a circulating loop of lithium bromide solution and refrigerant water. The lithium bromide refrigerator utilizes reverse osmosis membranes to concentrate the lithium bromide solution, can greatly reduce the consumption of heat energy and lower the running cost, and meanwhile reduces the use amount of heat exchangers, simplifies the equipment structure, saves the equipment investment and lowers the overhaul difficulty.

Description

A kind of energy-efficient lithium bromide refrigerator
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)

1. energy-efficient lithium bromide refrigerator, comprise in the structure evaporimeter (1), absorber (2) with by pipeline (14) the 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, be provided with refrigerant line (3) in the evaporimeter (1), it is characterized in that:
Described absorber (2) links to each other with lithium-bromide solution pump (4), one-level high-pressure pump (6), first-stage reverse osmosis film filter (7), intermediate water tank (8), secondary high-pressure pump (9), two-pass reverse osmosis film filter (10), blender (11), absorber (2) 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.
2. a kind of energy-efficient lithium bromide refrigerator according to claim 1 is characterized in that: the one-level high-pressure pump (6) in described lithium-bromide solution-water as refrigerant closed circuit, first-stage reverse osmosis film filter (7), secondary high-pressure pump (9) and two-pass reverse osmosis film filter (10) all are set up in parallel two covers.
3. a kind of energy-efficient lithium bromide refrigerator according to claim 1 and 2 is characterized in that: the pipeline (14) between described lithium-bromide solution pump (4) and the one-level high-pressure pump (6) is provided with the anti-crystallization heater (5) of a lithium-bromide solution.
4. a kind of energy-efficient lithium bromide refrigerator according to claim 1 and 2 is characterized in that: described absorber (2) inner tip is provided with spray dish I (21), and spray dish I (21) is continuous therewith by pipeline (14) for blender (11).
5. a kind of energy-efficient lithium bromide refrigerator according to claim 1 and 2 is characterized in that: the described water as refrigerant circulatory system comprises the spray dish II (131) that is arranged on evaporimeter (1) inner tip and is arranged on refrigerant pump (132) evaporimeter (1) lower end, that link to each other with spray dish II (131) by pipeline (14).
CN2011200059632U 2011-01-11 2011-01-11 Efficient and energy-saving lithium bromide refrigerator Expired - Fee Related CN201954828U (en)

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

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
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
US10584906B2 (en) 2013-08-09 2020-03-10 Carrier Corporation Refrigeration purge system

Cited By (4)

* Cited by examiner, † Cited by third party
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

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110831

Termination date: 20170111

CF01 Termination of patent right due to non-payment of annual fee