CN101832679A - Dual-effect type-II lithium bromide absorption heat pump unit - Google Patents
Dual-effect type-II lithium bromide absorption heat pump unit Download PDFInfo
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- CN101832679A CN101832679A CN201010170545A CN201010170545A CN101832679A CN 101832679 A CN101832679 A CN 101832679A CN 201010170545 A CN201010170545 A CN 201010170545A CN 201010170545 A CN201010170545 A CN 201010170545A CN 101832679 A CN101832679 A CN 101832679A
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- pressure generator
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- 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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Abstract
The invention relates to a dual-effect type-II lithium bromide absorption heat pump unit, which comprises a generator, a condenser (1), an evaporator (4), an absorber (5), a solution heat exchanger, a solution pump, a coolant pump, a control system, pipes and valves, wherein the pipes and valves are used for connecting the parts; the generator comprises a high-pressure generator (7) and a low-pressure generator (2); the solution heat exchanger comprises a high-temperature solution heat exchanger (3) and a low-temperature solution heat exchanger (6); and coolant vapor generated when solution is heated in the high-pressure generator (7) by a waste heat source to be condensed enters the low-pressure generator (2) from a coolant vapor pipe. When the temperature of the waste heat source rises, a solution condensation process is changed into a dual-effect second condensation process by adding the high-pressure generator and the low-temperature solution heat exchanger, so that the heating COP of the high-temperature heat source generation is up to about 0.6 and on the premise of the same amount of waste heat, more available high-temperature heat sources can be obtained and the cooling water consumption of unit heat amount is reduced.
Description
(1) technical field
The present invention 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 objective of the invention is to overcome above-mentioned deficiency, 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 object of the present invention is achieved like this:
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 invention has the beneficial effects as follows:
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 dual-effect type-II lithium bromide absorption heat pump unit scheme one schematic diagram of the present invention.
Fig. 3 is dual-effect type-II lithium bromide absorption heat pump unit scheme two schematic diagrames of the present invention.
Fig. 4 is dual-effect type-II lithium bromide absorption heat pump unit scheme three schematic diagrames of the present invention.
Reference numeral among the figure:
(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 (9)
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 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 solution flow process of described unit is that positive serial flow is introduced into high pressure generator (7) and enters low pressure generator (2) again.
6. 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 solution flow process of described unit be in parallel, fall series connection or connection in series-parallel flow process and enter high pressure generator (7) and low pressure generator (2).
7. 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.
8. a kind of dual-effect type-II lithium bromide absorption heat pump unit according to claim 5 is characterized in that: the driving used heat of described unit is hot water, steam or conduction oil.
9. a kind of dual-effect type-II lithium bromide absorption heat pump unit according to claim 6 is characterized in that: the driving used heat of described unit is hot water, steam or conduction oil.
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| CN201010170545A CN101832679A (en) | 2010-05-10 | 2010-05-10 | Dual-effect type-II lithium bromide absorption heat pump unit |
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| CN201010170545A CN101832679A (en) | 2010-05-10 | 2010-05-10 | Dual-effect type-II lithium bromide absorption heat pump unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155810A (en) * | 2011-04-09 | 2011-08-17 | 大连理工大学 | Absorption high-temperature heat pump system |
| CN103808060A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Two-stage absorption second-kind lithium bromide absorption heat pump unit with flash evaporator |
| CN103808065A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Second-kind lithium bromide absorption heat pump unit system |
| CN105571194A (en) * | 2015-12-24 | 2016-05-11 | 希望深蓝空调制造有限公司 | Lithium bromide absorption type combined heat pump |
| CN108444144A (en) * | 2018-04-25 | 2018-08-24 | 双良节能系统股份有限公司 | Hot water fall connect steam double-effect type lithium bromide absorption type heat pump unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804510A (en) * | 2006-01-23 | 2006-07-19 | 李华玉 | Single-double effect absorption type heat pump system |
| CN1865816A (en) * | 2006-05-10 | 2006-11-22 | 江苏双良空调设备股份有限公司 | Second lithium bromide absorption type heat pump for direct preparation of steam |
| CN101672548A (en) * | 2009-08-27 | 2010-03-17 | 李华玉 | Compound second-type absorption type heat pump based on double-effect process |
-
2010
- 2010-05-10 CN CN201010170545A patent/CN101832679A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804510A (en) * | 2006-01-23 | 2006-07-19 | 李华玉 | Single-double effect absorption type heat pump system |
| CN1865816A (en) * | 2006-05-10 | 2006-11-22 | 江苏双良空调设备股份有限公司 | Second lithium bromide absorption type heat pump for direct preparation of steam |
| CN101672548A (en) * | 2009-08-27 | 2010-03-17 | 李华玉 | Compound second-type absorption type heat pump based on double-effect process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155810A (en) * | 2011-04-09 | 2011-08-17 | 大连理工大学 | Absorption high-temperature heat pump system |
| CN102155810B (en) * | 2011-04-09 | 2012-07-25 | 大连理工大学 | Absorption high-temperature heat pump system |
| CN103808060A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Two-stage absorption second-kind lithium bromide absorption heat pump unit with flash evaporator |
| CN103808065A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Second-kind lithium bromide absorption heat pump unit system |
| CN103808065B (en) * | 2014-02-17 | 2016-03-16 | 双良节能系统股份有限公司 | Equations of The Second Kind lithium bromide absorption type heat pump machine set system |
| CN105571194A (en) * | 2015-12-24 | 2016-05-11 | 希望深蓝空调制造有限公司 | Lithium bromide absorption type combined heat pump |
| CN105571194B (en) * | 2015-12-24 | 2018-05-08 | 希望深蓝空调制造有限公司 | Suction-type lithium bromide combines heat pump |
| CN108444144A (en) * | 2018-04-25 | 2018-08-24 | 双良节能系统股份有限公司 | Hot water fall connect steam double-effect type lithium bromide absorption type heat pump unit |
| CN108444144B (en) * | 2018-04-25 | 2024-02-09 | 双良节能系统股份有限公司 | Hot water reverse series steam double-effect lithium bromide absorption heat pump unit |
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Open date: 20100915 |