CN1140744C - Dual-effect and dual-stage suction-type lithium bromide refrigerator - Google Patents
Dual-effect and dual-stage suction-type lithium bromide refrigerator Download PDFInfo
- Publication number
- CN1140744C CN1140744C CNB011064234A CN01106423A CN1140744C CN 1140744 C CN1140744 C CN 1140744C CN B011064234 A CNB011064234 A CN B011064234A CN 01106423 A CN01106423 A CN 01106423A CN 1140744 C CN1140744 C CN 1140744C
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- absorber
- generator
- communicated
- heat exchanger
- pressure generator
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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
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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
- 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
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to a double-efficiency and double-stage lithium bromide absorbing type refrigerating machine. On the basis of a main absorber, a high-pressure generator, a low-pressure generator, a high-temperature heat exchanger, a low-temperature heat exchanger, a condenser, an evaporator and relevant tube bundles of the existing refrigerating machine, the present invention is additionally provided with two middle-pressure generators, a middle-temperature heat exchanger, an auxiliary absorber and an auxiliary heat exchanger. The residual heat of a heating source is fully used. Compared with the existing double-efficiency lithium bromide absorbing type refrigerating machine, the present invention saves energy by 20 to 30%. Simultaneously, the present invention has the advantages of the small heat exchange area of refrigerating capacity per kilowatt, the small volume and the light weight of the machine, material saving and low cost, and is the optimal replacing machine for a compression refrigerating machine.
Description
Technical field
The present invention relates to a kind of refrigerating plant, particularly lithium bromide water absorption refrigerating plant.
Background technology
The extensive both at home and abroad now double-effect lithium bromide absorption type refrigerating plant that adopts, form visible " lithium bromide absorbing type refrigeration technology and the application " book of celebrating chief editor, China Machine Press's distribution in 1997 forever that carries by main absorber, high pressure generator, low pressure generator, low temperature heat exchanger, elevated temperature heat converter, condenser, evaporimeter and relevant tube bundle.Though the working medium lithium bromide water solution has the advantage of not destroying atmospheric ozone layer, not producing greenhouse effects, compare with the compressed air conditioner device, though its economize on electricity still has problems aspect energy-conservation.
Summary of the invention
Economic benefits and social benefits one twin-stage lithium bromide absorption refrigeration device provided by the present invention, its purpose is to improve energy utilization rate, reduces the heat exchange area of specific refrigerating effect simultaneously, and with minimizing equipment volume and weight, thereby economical with materials reduces cost.The present invention by increase press in two generator, in warm interchanger, auxilliary absorber and secondary unit, make full use of heating thermal source waste heat, utilize the solution in the latent heat heating next stage generator of the refrigerant vapour that produces in higher level's generator, realized goal of the invention.
Economic benefits and social benefits of the present invention-twin-stage lithium bromide water absorption refrigerating plant, comprise main absorber, high pressure generator, low pressure generator, low temperature heat exchanger, high-temperature heat exchanger, condenser, evaporimeter and relevant tube bundle, main absorber solution pilot outlet is communicated with solution pump, valve and main absorber shower in proper order, the outlet of condenser water as refrigerant is communicated with evaporimeter through choke valve, the water as refrigerant outlet of evaporimeter is communicated with the evaporimeter shower through pump, driving heat source tube bundle in described high pressure generator and the low pressure generator interconnects, and it is characterized in that:
(1) set up in first press generator and in warm interchanger, main absorber solution primary outlet is communicated with pump in proper order, valve, low temperature heat exchanger, in warm interchanger, high-temperature heat exchanger and high pressure generator import, the high pressure generator taphole is communicated with high-temperature heat exchanger in proper order, press generator in first, in warm interchanger, low pressure generator, low temperature heat exchanger, main absorber, the outlet of high pressure generator refrigerant vapour is communicated with the heating tube bundle of pressing generator in first in proper order, first heating tube bundle and the condenser of low pressure generator
(2) set up and press generator in second, press the outlet of generator refrigerant vapour to be communicated with the heating tube bundle and the condenser of pressing generator in second in first through the pipeline order, press the outlet of generator refrigerant vapour to be communicated with second of low pressure generator in second and heat tube bundle, be communicated with condenser through pump through pipeline
(3) set up auxilliary absorber and secondary unit, the auxilliary absorber taphole is communicated with in pump, the secondary unit and second in proper order presses generator, presses in second the generator taphole to be communicated with the shower of secondary unit and auxilliary absorber in proper order.
Described economic benefits and social benefits-twin-stage lithium bromide water absorption refrigerating plant, the output that described low temperature heat exchanger solution can be refluxed is communicated with to come the pipeline behind the autonomous absorber solution pilot outlet direction valve, is communicated with main absorber shower again.
Described economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant, also described main absorber can be divided into the first absorber capsule and the second absorber capsule by dividing plate from the bottom, main absorber solution primary outlet is positioned at first absorber capsule bottom, and main absorber solution pilot outlet is positioned at second absorber capsule bottom.
Cooling water tube bundle in the described economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant, described main absorber, condenser and auxilliary absorber adopts parallel way.
Described economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant, it is further characterized in that to press in described first presses generator and condenser to be in same pressure space in the generator, second, described low pressure generator and auxilliary absorber are in another pressure space, and described main absorber and evaporimeter are in the 3rd pressure space.
The present invention has increased substantially rate of energy, when producing identical refrigerating capacity, steam, combustion gas, fuel oil than the consumption of present widely used double-effect lithium bromide refrigeration machine driving heat source are wanted much less, energy-conservation 20-30%, its energy resource consumption will be less than or equal to the primary energy of compression refrigerating machine, reach lithium bromide refrigerator and not only economize on electricity but also purpose of energy saving.Consumptive material of the present invention lacks than existing double-effect lithium bromide absorption chiller, has saved resource, therefore reduces cost.Because above-mentioned advantage is promoted the use of the present invention and had huge economic benefit, social benefit, ecological benefits and energy-saving benefit, be that still a large amount of at present the bests that the compression refrigerating machine that damages the ozone layer, produces greenhouse effects is arranged of using substitute machine.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
The specific embodiment
Existing accompanying drawings process of refrigerastion of the present invention:
1. solution loop, divide two branch roads:
First branch road: main absorber 35 can be divided into the first absorber capsule 38 and the second absorber capsule, 39 two parts by dividing plate 40, weak solution in the absorber capsule 38 is pumped by pump 1, successively through valve 3, low temperature heat exchanger 5, in warm interchanger 6, high-temperature heat exchanger 7 is delivered to and is removed to take place to produce refrigerant vapour in the high pressure generator 9, after weak solution appropriateness in high pressure generator 9 is concentrated, enter the pressure generator 12 further refrigerant vapours that produce in first through high-temperature heat exchanger 7, warm interchanger 6 enters low pressure generator 36 in solution warp that concentrates again in the pressure generator in first, refrigerant vapour takes place to produce again, wherein concentrate the concentrated solution that forms enters main absorber through low temperature heat exchanger 5 the second absorber capsule 39 again, and with 39 in original solution be mixed into intermediate solution, pump by pump 2 and to enter main absorber spray thrower 34 through valve 4 and be sprayed onto on the cooling water tube bundle 37, become behind the refrigerant vapour that absorption is generated by evaporimeter 32 evaporation in the first absorber capsule 38 and the second absorber capsule, 39 two parts that weak solution drops to main absorber 35, finish the circulation of first branch road, the heat that produces in the absorption is taken away by the cooling water in main absorber cooling water tube bundle 37 pipes.
Second branch road: the weak solution of coming out from auxilliary absorber 27 is pumped by pump 26, after secondary unit 25 heats up, enter and press generator 20 that refrigerant vapour takes place to produce in second, the concentrated solution that produces sprays on the cooling water tube bundle 29 of auxilliary absorber 27 in auxilliary absorber shower 24 after flowing through secondary unit 25 to emit heat through managing 22, absorption is from the steam that takes place in the low pressure generator 36 to produce, form weak solution and drop in the auxilliary absorber 27, finish the circulation of second branch road.
2. driving heat source loop:
Driving heat source enters low pressure generator 36 after being introduced into driving heat source tube bundle 8 heat dilute solution of high pressure generator 9 again, has an effect through its driving heat source tube bundle 14 and discharges after emitting heat.
3. refrigerant vapour loop is divided into three branch roads:
First branch road is by the refrigerant vapour that takes place in the high pressure generator 9 to produce, enter pressure generator 12 in first through managing 10, emit and enter the heating of first in the low pressure generator 36 tube bundle 17 behind the heat again, enter condenser 16 through managing 13 again after further emitting heat, form first's water as refrigerant.
Second branch road by pressing in first generator 12 that the refrigerant vapour that produces takes place, enters and presses the outer solution of heating tube in the generator 20 in second through managing 11, enters condenser 16 at last, formation second portion water as refrigerant.
The 3rd branch road by the refrigerant vapour of pressing in second generator 20 to produce, enters the heating of second in the low pressure generator 36 tube bundle 18 through managing 19, emits heat after pump 15 pumps into condenser 16, forms the third part water as refrigerant.
In condenser 16, after above-mentioned first, second and third part water as refrigerant converges, after choke valve 21 throttlings, enter evaporimeter 32, the flow through heat of vaporization of the chilled water in the evaporimeter chilled water tube bundle 33 of absorption, the temperature of chilled water is reduced, reach cooling effect, fallen warm chilled water and delivered to air-conditioned room.
Pump 28 sprays unevaporated refrigerant pump in the evaporimeter 32 on the evaporimeter chilled water tube bundle 33 to evaporimeter spray thrower 31, and the evaporation of heat absorption back forms refrigerant vapour, and this refrigerant vapour is absorbed by main absorber 35.
4. chilled(cooling) water return (CWR).
The cooling water that enters in main absorber cooling water tube bundle 37, auxilliary absorber cooling water tube bundle 29 and the condenser cooling water tube bundle 16 adopts parallel way.
Dividing plate shown in Fig. 1 23 and dividing plate 30 press generator 20 and condenser 16 every at same pressure space with pressing in first in the generator 12, second; With low pressure generator 36, auxilliary absorber 27 every in another pressure space, with main absorber 35 and evaporimeter 32 every in low-voltage space; Another measure that can take is, three autonomous container are made in three different pressures spaces respectively, outsidely connects through pipeline.
Claims (4)
1. economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant, comprise main absorber, high pressure generator, low pressure generator, low temperature heat exchanger, high-temperature heat exchanger, condenser, evaporimeter and relevant tube bundle, main absorber solution pilot outlet is communicated with solution pump, valve and main absorber shower in proper order, the outlet of condenser water as refrigerant is communicated with evaporimeter through choke valve, the water as refrigerant outlet of evaporimeter is communicated with the evaporimeter shower through pump, driving heat source tube bundle in described high pressure generator and the low pressure generator interconnects, and it is characterized in that:
(1) set up in first press generator and in warm interchanger, main absorber solution primary outlet is communicated with pump in proper order, valve, low temperature heat exchanger, in warm interchanger, high-temperature heat exchanger and high pressure generator import, the high pressure generator taphole is communicated with high-temperature heat exchanger in proper order, press generator in first, in warm interchanger, low pressure generator, low temperature heat exchanger, main absorber, the outlet of high pressure generator refrigerant vapour is communicated with the heating tube bundle of pressing generator in first in proper order, first heating tube bundle and the condenser of low pressure generator
(2) set up and press generator in second, press the outlet of generator refrigerant vapour to be communicated with the heating tube bundle and the condenser of pressing generator in second in first through the pipeline order, press the outlet of generator refrigerant vapour to be communicated with second of low pressure generator in second and heat tube bundle, be communicated with condenser through pump through pipeline
(3) set up auxilliary absorber and secondary unit, the auxilliary absorber taphole is communicated with in pump, the secondary unit and second in proper order presses generator, presses in second the generator taphole to be communicated with the shower of secondary unit and auxilliary absorber in proper order,
(4) press in described first and press generator and condenser to be in same pressure space in the generator, second, described low pressure generator and auxilliary absorber are in another pressure space, and described main absorber and evaporimeter are in the 3rd pressure space.
2. economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant as claimed in claim 1 is characterized in that the pipeline after described low temperature heat exchanger solution backflow output is communicated with to come autonomous absorber solution pilot outlet direction valve, is communicated with main absorber shower again.
3. economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plant as claimed in claim 1, it is characterized in that described main absorber is divided into the first absorber capsule and the second absorber capsule by dividing plate from the bottom, main absorber solution primary outlet is positioned at first absorber capsule bottom, and main absorber solution pilot outlet is positioned at second absorber capsule bottom.
4. as claim 2 or 3 described economic benefits and social benefits one twin-stage lithium bromide water absorption refrigerating plants, it is characterized in that the cooling water tube bundle in described main absorber, condenser and the auxilliary absorber adopts parallel way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011064234A CN1140744C (en) | 2001-01-11 | 2001-01-11 | Dual-effect and dual-stage suction-type lithium bromide refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011064234A CN1140744C (en) | 2001-01-11 | 2001-01-11 | Dual-effect and dual-stage suction-type lithium bromide refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1302990A CN1302990A (en) | 2001-07-11 |
| CN1140744C true CN1140744C (en) | 2004-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011064234A Expired - Fee Related CN1140744C (en) | 2001-01-11 | 2001-01-11 | Dual-effect and dual-stage suction-type lithium bromide refrigerator |
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| CN (1) | CN1140744C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324384A (en) * | 2008-07-25 | 2008-12-17 | 李华玉 | Method for adding neighboring high temperature heat supply end on first absorption heat pump |
| CN110365281B (en) * | 2019-07-02 | 2020-10-27 | 西安交通大学 | Hydrogen-containing electric heating and cooling multi-energy system and supply and demand collaborative planning method and device thereof |
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2001
- 2001-01-11 CN CNB011064234A patent/CN1140744C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1302990A (en) | 2001-07-11 |
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