CN201753995U - Double-effect second-kind lithium bromide absorption type heat pump unit - Google Patents
Double-effect second-kind lithium bromide absorption type heat pump unit Download PDFInfo
- Publication number
- CN201753995U CN201753995U CN2010201881846U CN201020188184U CN201753995U CN 201753995 U CN201753995 U CN 201753995U CN 2010201881846 U CN2010201881846 U CN 2010201881846U CN 201020188184 U CN201020188184 U CN 201020188184U CN 201753995 U CN201753995 U CN 201753995U
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- pressure generator
- solution
- heat exchanger
- lithium bromide
- bromide absorption
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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 utility model relates to a double-effect second-kind lithium bromide absorption type heat pump unit which comprises a generator, a condenser (1), an evaporator (4), an absorber (5), a solution heat exchanger, a solution pump, a refrigerant pump, a control system, a pipeline for connecting each component, and a valve; the generator includes a high-pressure generator (7) and a low-pressure generator (2); the solution heat exchanger includes a high-temperature solution heat exchanger (3) and a low-temperature solution heat exchanger (6); and refrigerant steam generated by using a waste heat source to heat and condense solution in the high-pressure generator (7) enters the low-pressure generator (2) through a refrigerant steam pipeline. When the temperature of the waste heat source is high, the solution condensing process is changed into double-effect secondary condensation through additional arrangement of the high-pressure generator and the low-temperature solution heat exchanger, so as to lead the heating COP (coefficient of performance) of the heat pump unit for producing the high-temperature heat source to reach about 0.6, thereby obtaining more useful high-temperature heat sources under the premise of the same quantity of waste heat, and reducing the consumption of cooling water in unit heating quantity at the same time.
Description
(1) technical field
The utility model relates to a kind of second lithium bromide absorption type heat pump unit.Belong to air conditioner technical field.
(2) background technology
The second lithium bromide absorption type heat pump unit in the past is the single-action flow process as shown in Figure 1.Unit shown in Figure 1 is the single-action flow process second lithium bromide absorption type heat pump unit of standard, second lithium bromide absorption type heat pump with waste thermal energy as driving heat source, obtaining the thermal source of higher temperature under the condition of using cooling water, is a kind of equipment of the energy effectively reclaiming waste heat energy.This equipment mainly contains generator 8, condenser 1, evaporimeter 4, absorber 5 and solution heat exchanger 9 and forms.Heating flow process is that the waste heat source adds the lithium-bromide solution in the heater 8, makes it produce water vapour concentration rising simultaneously.The steam that the produces water condensation that is cooled in condenser 1 becomes water as refrigerant, cooling water is taken the heat of refrigerant vapour outside the machine out of from condenser 1, water as refrigerant enters evaporimeter water as refrigerant liquid capsule by the condenser cryogenic fluid pump, squeeze into evaporimeter 4 tube surface by evaporimeter refrigerant cycle pump again, draw the heat in waste heat source and evaporate, the concentrated solution in the generator 8 enters absorber by the concentrated solution pump through solution heat exchanger 9 and absorbs the refrigerant vapour that evaporimeter 4 is come.The heat that absorption process produces adds the fluid in heat absorber 5 pipes, the tube fluid temperature is raise, for using with thermal field.
COP heating capacity/the waste heat that heats of above-mentioned single-action flow process is generally 0.42～0.48, and the limit is no more than 0.5.When second lithium bromide absorption type heat pump drives the used heat temperature and reaches certain value such as temperature and surpass 140 ℃, the COP that heats that adopts conventional single-action flow process second lithium bromide absorption type heat pump to produce high temperature heat source is generally 0.42～0.48, it is lower to heat COP, under the certain prerequisite of waste heat, it is few to obtain useful high temperature heat source.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and the second lithium bromide absorption type heat pump unit at high temperature waste hot drives provides a kind of high COP of heating, the double-effect process second lithium bromide absorption type heat pump unit of high waste heat source utilization ratio.
The purpose of this utility model is achieved in that
Scheme one:
On former single-action process base, set up a high pressure generator and a cryogenic fluid heat exchanger, connect and compose the double-effect process second lithium bromide absorption type heat pump unit by pipe-line system, this unit is mainly by high pressure generator, low pressure generator, condenser, evaporimeter, absorber, high-temperature solution heat exchanger, the cryogenic fluid heat exchanger, the concentrated solution pump, cryogenic fluid pump, control system and connect the pipeline of each parts, valves etc. constitute, it is characterized in that the refrigerant vapour that is produced by waste heat source heating concentrated solution in the high pressure generator enters low pressure generator by the refrigerant vapour pipeline, thermal source as low pressure generator heating concentrated solution, the waste heat source series connection is introduced into high pressure generator and enters evaporimeter again, the absorber weak solution enters high pressure generator by the concentrated intermediate solution that becomes of high temperature waste hot source heating after the high-temperature solution heat exchanger cooling, produce refrigerant vapour simultaneously, refrigerant vapour enters the low pressure generator tube side by the refrigerant vapour pipeline, the heating concentration tube is come from high pressure generator outward, and intermediate solution becomes concentrated solution after the cooling of cryogenic fluid heat exchanger, the post bake that realizes solution concentrates, and improves the waste heat source utilization ratio.
Scheme two:
The waste heat source parallel connection enters high pressure generator and evaporimeter, and other are identical with scheme one.
Scheme three:
The waste heat source series connection is introduced into evaporimeter and enters high pressure generator again, and other are identical with scheme one.
The beneficial effects of the utility model are:
When the waste heat source temperature is higher, by setting up high pressure generator and cryogenic fluid heat exchanger, make the solution concentration process become the economic benefits and social benefits secondary concentration, the COP that heats that makes unit produce high temperature heat source reaches about 0.6, improve more than 20% than the present conventional single-action second lithium bromide absorption type heat pump unit, significantly improve the waste heat source utilization ratio, under same waste heat amount prerequisite, obtain how useful high temperature heat source, reduce the consumption of system of unit heat cooling water simultaneously.
(4) description of drawings
Fig. 1 is the second lithium bromide absorption type heat pump unit schematic diagram in the past.
Fig. 2 is the utility model dual-effect type-II lithium bromide absorption heat pump unit scheme one schematic diagram.
Fig. 3 is the utility model dual-effect type-II lithium bromide absorption heat pump unit scheme two schematic diagrames.
Fig. 4 is the utility model dual-effect type-II lithium bromide absorption heat pump unit scheme three schematic diagrames.
Reference numeral among the figure:
Condenser 1, low pressure generator 2, high-temperature solution heat exchanger 3, evaporimeter 4, absorber 5, cryogenic fluid heat exchanger 6, high pressure generator 7, generator 8, solution heat exchanger 9.
(5) specific embodiment
Scheme one:
As shown in Figure 2, this dual-effect type-II lithium bromide absorption heat pump unit mainly is made of high pressure generator 7, low pressure generator 2, condenser 1, evaporimeter 4, absorber 5, high-temperature solution heat exchanger 3, cryogenic fluid heat exchanger 6, concentrated solution pump, cryogenic fluid pump, control system (not shown) and the institute such as pipeline, valve that connects each parts.The waste heat source series connection is introduced into high pressure generator 7 and enters evaporimeter 4 again, absorber 5 weak solutions enter high pressure generator 7 by the concentrated intermediate solution that becomes of high temperature waste hot source heating after high-temperature solution heat exchanger 3 coolings, produce refrigerant vapour simultaneously, refrigerant vapour enters low pressure generator 2 tube sides by the refrigerant vapour pipeline, the heating concentration tube is come from high pressure generator 7 outward, and intermediate solution becomes concentrated solution after 6 coolings of cryogenic fluid heat exchanger, the post bake that realizes solution concentrates, and improves the waste heat source utilization ratio.The refrigerant vapour that low pressure generator 2 the produces water condensation that is cooled in condenser 1 becomes water as refrigerant, cooling water is taken the heat of refrigerant vapour outside the machine out of from condenser, water as refrigerant enters evaporimeter 4 water as refrigerant liquid capsules by the condenser cryogenic fluid pump, squeeze into the heat-transfer pipe of evaporator surface by evaporimeter refrigerant cycle pump again, draw the heat in waste heat source and evaporate, the concentrated solution in the low pressure generator 2 enters absorber 5 by the concentrated solution pump through cryogenic fluid heat exchanger 6 and high-temperature solution heat exchanger 3 and absorbs the refrigerant vapour that evaporimeters 4 are come.Fluid in the heat heating absorber tube that absorption process produces raises the tube fluid temperature, for using with thermal field.
Scheme two:
As shown in Figure 3, on the basis of scheme one, the waste heat source in the scheme one series connection is introduced into high pressure generator 7 enters evaporimeter 4 again and become the waste heat source parallel connection and enter high pressure generator 7 and evaporimeter 4, other are identical with scheme one.
Scheme three:
As shown in Figure 4, on the basis of scheme one, the waste heat source in the scheme one series connection is introduced into high pressure generator 7 enters evaporimeter 4 again and become waste heat source and fall series connection and be introduced into evaporimeter 4 and enter high pressure generator 7 again, other are identical with scheme one.
Solution flow process during above scheme not only is suitable for illustrating is that positive serial flow is gone into the mode that high pressure generator enters low pressure generator more earlier, is applicable to that also the solution flow process is parallel connection, series connection, connection in series-parallel flow process enter high pressure generator and low pressure generator.
Driving used heat in the above scheme can be hot water, also can be steam, other media of heat conduction wet goods.
Claims (5)
1. dual-effect type-II lithium bromide absorption heat pump unit, comprise generator, condenser (1), evaporimeter (4), absorber (5), solution heat exchanger, solution pump, cryogenic fluid pump, control system and connect the pipeline and the valve of each parts, it is characterized in that: described generator comprises high pressure generator (7) and low pressure generator (2), solution heat exchanger comprises high-temperature solution heat exchanger (3) and cryogenic fluid heat exchanger (6), and the refrigerant vapour that is produced by waste heat source heating concentrated solution in the high pressure generator (7) enters low pressure generator (2) by the refrigerant vapour pipeline.
2. a kind of dual-effect type-II lithium bromide absorption heat pump unit according to claim 1 is characterized in that: described waste heat source series connection is introduced into high pressure generator (7) and enters evaporimeter (4) again.
3. a kind of dual-effect type-II lithium bromide absorption heat pump unit according to claim 1 is characterized in that: described waste heat source parallel connection enters high pressure generator (7) and evaporimeter (4).
4. a kind of dual-effect type-II lithium bromide absorption heat pump unit according to claim 1 is characterized in that: described waste heat source is fallen series connection and is introduced into evaporimeter (4) and enters high pressure generator (7) again.
5. according to claim 1,2,3 or 4 described a kind of dual-effect type-II lithium bromide absorption heat pump units, it is characterized in that: the driving used heat of described unit is hot water, steam or conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201881846U CN201753995U (en) | 2010-05-10 | 2010-05-10 | Double-effect second-kind lithium bromide absorption type heat pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201881846U CN201753995U (en) | 2010-05-10 | 2010-05-10 | Double-effect second-kind lithium bromide absorption type heat pump unit |
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| Publication Number | Publication Date |
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| CN201753995U true CN201753995U (en) | 2011-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201881846U Expired - Fee Related CN201753995U (en) | 2010-05-10 | 2010-05-10 | Double-effect second-kind lithium bromide absorption type heat pump unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563952A (en) * | 2011-12-22 | 2012-07-11 | 福田雷沃国际重工股份有限公司 | Novel air-conditioning system for excavating machine |
| CN107957150A (en) * | 2017-10-31 | 2018-04-24 | 杭州科晟能源技术有限公司 | Evaporate unit circulating water exhaust heat recovery device and waste heat reclaiming process |
-
2010
- 2010-05-10 CN CN2010201881846U patent/CN201753995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563952A (en) * | 2011-12-22 | 2012-07-11 | 福田雷沃国际重工股份有限公司 | Novel air-conditioning system for excavating machine |
| CN107957150A (en) * | 2017-10-31 | 2018-04-24 | 杭州科晟能源技术有限公司 | Evaporate unit circulating water exhaust heat recovery device and waste heat reclaiming process |
| CN107957150B (en) * | 2017-10-31 | 2020-08-25 | 杭州科晟能源技术有限公司 | Circulating water waste heat recovery device and waste heat recovery process of evaporation unit |
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| Date | Code | Title | Description |
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| 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: 20110302 Termination date: 20180510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |