CN103868273A - Double-effect second-class lithium bromide absorption type heat pump with refrigerant water heat recovery function - Google Patents
Double-effect second-class lithium bromide absorption type heat pump with refrigerant water heat recovery function Download PDFInfo
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- CN103868273A CN103868273A CN201410071227.5A CN201410071227A CN103868273A CN 103868273 A CN103868273 A CN 103868273A CN 201410071227 A CN201410071227 A CN 201410071227A CN 103868273 A CN103868273 A CN 103868273A
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- refrigerant
- 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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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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
Abstract
The invention relates to a double-effect second-class lithium bromide absorption type heat pump with a refrigerant water heat recovery function. The heat pump comprises an evaporator (1), an absorber (2), a high-pressure generator (3), a low-pressure generator (4), a condenser (5), a high-temperature heat exchanger (6), a low-temperature heat exchanger (7), a solution pump (8), a refrigerant spraying pump (9), a refrigerant circulation pump (10) and a refrigerant water heat exchanger (11), wherein high-temperature refrigerant steam generated by concentration of solution in the high-pressure generator (3) is used as a heat source to be condensed through heat release in the low-pressure generator (4), and then enters the condenser (5) through the refrigerant water heat exchanger (11), and refrigerant water in the condenser (5) is pumped out by the refrigerant circulation pump (10) and then enters the evaporator (1) through the refrigerant water heat exchanger (11). The heat pump provided by the invention has the advantages that high-temperature refrigerant steam condensed water enters the condensers after the low-temperature refrigerant water is heated in a heat exchange way by the refrigerant water heater exchanger, the heat brought away by cooling water when the refrigerant water enters the condenser to be subjected to flash evaporation temperature reduction, and in addition, the afterheat source consumption quantity in the evaporator is reduced, so the efficiency of converting an afterheat source into a high-temperature heat source is improved.
Description
Technical field
The present invention relates to a kind of dual-effect type-II lithium bromide absorption heat pump.Belong to air conditioner technical field.
Background technology
The dual-effect type-II lithium bromide absorption heat pump of existing solution series flow process as shown in Figure 1.Pipeline, valve by evaporimeter 1, absorber 2, high pressure generator 3, low pressure generator 4, condenser 5, high-temperature heat exchanger 6, low temperature heat exchanger 7, solution pump 8, cryogen spray pump 9, refrigerant cycle pump 10, control system (not shown) and connecting components are formed.Waste heat source and course through evaporimeter 1 and high pressure generator 3, flow of hot water through absorber 2, cooling water flow through condenser 5.When unit operation, the water as refrigerant of being extracted out from evaporimeter 1 top spray by cryogen spray pump 9 absorbs the waste heat source heat of flowing through in evaporimeter 1 heat-transfer pipe, after vaporization, enter absorber 2, absorbed by bromize lithium concentrated solution wherein, and release heat heats the hot water of the absorber of flowing through; After in absorber 2, bromize lithium concentrated solution absorbs refrigerant vapour, concentration is thinning, after high-temperature heat exchanger 6 heat exchange coolings, enter in high pressure generator 3 concentrated by the heating of waste heat source, intermediate solution after concentrated enters in low pressure generator 4 after low temperature heat exchanger 7 heat exchange coolings, again heated concentrated by the concentrated refrigerant vapour producing of solution in high pressure generator 3, concentrated solution after concentrated is extracted out by solution pump 8, after low temperature heat exchanger 7 and high-temperature heat exchanger 6 heat exchange intensifications, comes back in absorber 2 and absorbs refrigerant vapour; And the concentrated high temperature refrigerant vapour condensation after heated solution in low pressure generator 4 producing in high pressure generator 3, all enter in condenser 5 with concentrating and separating refrigerant vapour out in low pressure generator 4, the water that is cooled is taken away heat condensation, then is delivered in evaporimeter 1 by refrigerant cycle pump 10.
Except above-mentioned serial flow, (weak solution of absorber 2 is introduced in high pressure generator 3 concentrated existing dual-effect type-II lithium bromide absorption heat pump, enter again in low pressure generator 4 and continue to concentrate, finally return in absorber 2) outside, (weak solution of absorber 2 is introduced in low pressure generator 4 concentrated to also have the serial flow of falling, enter again in high pressure generator 3 and continue to concentrate, finally return in absorber 2) and parallel-connection flow (the weak solution parallel connection of absorber 2 enters in high pressure generator 3 and low pressure generator 4 heated concentrated, concentrated solution after concentrated is got back in absorber 2 more in the lump).
Above-mentioned dual-effect type-II lithium bromide absorption heat pump, no matter be which kind of flow process, in its high pressure generator 3 the concentrated refrigerant vapour producing of lithium-bromide solution in low pressure generator 4 as condensation after thermal source release heat, the water as refrigerant that temperature is higher is introduced into shwoot condensation in condenser 5, the part heat water that is cooled is taken unit out of, and the water as refrigerant that final temperature is lower is just sent back in evaporimeter 1 by refrigerant cycle pump 10.If by the heat recovery and utilization of this part high temperature water as refrigerant, can reduce the heat that the water that is cooled is taken away from condenser 5, thereby raising waste heat is converted into the ratio of high-grade heat, improves efficiency of energy utilization.
Summary of the invention
The heat that the object of the invention is to reclaim the solidifying water of high temperature refrigerant vapour producing as condensation after thermal source release heat in low pressure generator, provides the dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery that a kind of efficiency is higher.
The object of the present invention is achieved like this: a kind of dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery, comprise evaporimeter, absorber, high pressure generator, low pressure generator, condenser, high-temperature heat exchanger, low temperature heat exchanger, solution pump, cryogen spray pump and refrigerant cycle pump, described heat pump has additional a water as refrigerant heat exchanger, in high pressure generator, the concentrated high temperature refrigerant vapour producing of solution, as after thermal source heat release condensation in low pressure generator, enters condenser through water as refrigerant heat exchanger; Water as refrigerant in condenser enters in evaporimeter through water as refrigerant heat exchanger after being extracted out by refrigerant cycle pump.
The invention has the beneficial effects as follows:
The present invention is by increasing a water as refrigerant heat exchanger, make the solidifying water of high temperature refrigerant vapour producing as condensing after low pressure generator thermal source before entering condenser, first carry out heat exchange cooling with the cryogenic coolant water that is sent to evaporimeter by refrigerant cycle pump from condenser is extracted out, thereby reclaim the part solidifying water of the high temperature refrigerant vapour heat that water for cooling takes away that is cooled in dual-effect type-II lithium bromide absorption heat pump in the past in condenser, the simultaneous temperature later water as refrigerant that raises enters evaporimeter, can reduce the consumption of calorie in waste heat source in evaporimeter, thereby lifting waste heat source heat is converted into the ratio of high-grade heat, promote efficiency of energy utilization.
Brief description of the drawings
Fig. 1 is the fundamental diagram of dual-effect type-II lithium bromide absorption heat pump in the past.
Fig. 2 is a kind of solution series flow process application example of the dual-effect type-II lithium bromide absorption heat pump of band water as refrigerant heat recovery of the present invention.
Reference numeral in figure:
Evaporimeter 1, absorber 2, high pressure generator 3, low pressure generator 4, condenser 5, high-temperature heat exchanger 6, low temperature heat exchanger 7, solution pump 8, cryogen spray pump 9, refrigerant cycle pump 10, water as refrigerant heat exchanger 11.
A1 is entered in waste heat source, and waste heat source goes out A2, and hot water enters B1, and hot water goes out B2, and cooling water enters C1, and cooling water goes out C2.
Detailed description of the invention
Fig. 2 is a kind of solution series flow process application example figure of the dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery involved in the present invention.This unit is made up of pipeline, the valve etc. of evaporimeter 1, absorber 2, high pressure generator 3, low pressure generator 4, condenser 5, high-temperature heat exchanger 6, low temperature heat exchanger 7, solution pump 8, cryogen spray pump 9, refrigerant cycle pump 10, water as refrigerant heat exchanger 11, control system (not shown) and connecting components.The parallel connection of waste heat source flow through evaporimeter 1 and high pressure generator 3, flow of hot water is through absorber 2, and cooling water flow is through condenser 5.When unit operation, water as refrigerant after being extracted out by cryogen spray pump 9 from evaporimeter 1 top spray absorbs the waste heat source heat of flowing through in evaporimeter 1 heat-transfer pipe, after vaporization, enter absorber 2, absorbed by bromize lithium concentrated solution wherein, and release heat heats the hot water of flowing through in absorber 2 heat-transfer pipes; After in absorber 2, bromize lithium concentrated solution absorbs refrigerant vapour, concentration is thinning, after high-temperature heat exchanger 6 heat exchange coolings, enter in high pressure generator 3 concentrated by the heating of waste heat source, intermediate solution after concentrated enters in low pressure generator 4 after low temperature heat exchanger 7 heat exchange coolings, again heated concentrated by the concentrated refrigerant vapour producing of solution in high pressure generator 3, concentrated solution after concentrated is extracted out by solution pump 8, after low temperature heat exchanger 7 and high-temperature heat exchanger 6 heat exchange intensifications, comes back in absorber 2 and absorbs refrigerant vapour; High temperature refrigerant vapour in low pressure generator 4 as after thermal source heat release condensation, after the 11 heat exchange coolings of water as refrigerant heat exchanger, enter condenser 5, in low pressure generator 4, concentrating and separating refrigerant vapour out also enters the water that is cooled in condenser 5 and takes away heat condensation simultaneously; The solidifying water of refrigerant vapour in condenser 5 is extracted out by refrigerant cycle pump 10 again, after 11 heat exchange of water as refrigerant heat exchanger heat up, sends in evaporimeter 1.
In the dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery shown in Fig. 2, absorber lithium-bromide solution is out high pressure generator 3, the low pressure generator 4 of flowing through again of first flowing through of connecting, it can be also low pressure generator 4, the high pressure generator 3 of flowing through, or parallel connection again flow through high pressure generator 3 and the low pressure generator 4 of first flowing through of connecting.
The dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery shown in Fig. 2, is flow through evaporimeter 1 and high pressure generators 3 of one or both waste heat source parallel connections, and it also can the source-series evaporimeter 1 of first flowing through of a kind of waste heat, the high pressure generator 3 of flowing through again; Or the source-series high pressure generator 3 of first flowing through of a kind of waste heat, the evaporimeter 1 of flowing through again.
Claims (3)
1. the dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery, comprise evaporimeter (1), absorber (2), high pressure generator (3), low pressure generator (4), condenser (5), high-temperature heat exchanger (6), low temperature heat exchanger (7), solution pump (8), cryogen spray pump (9) and refrigerant cycle pump (10), it is characterized in that: described heat pump has additional a water as refrigerant heat exchanger (11), in high pressure generator (3) the concentrated high temperature refrigerant vapour producing of solution in low pressure generator (4) as after thermal source heat release condensation, enter condenser (5) through water as refrigerant heat exchanger (11), water as refrigerant in condenser (5) enters in evaporimeter (1) through water as refrigerant heat exchanger (11) after being extracted out by refrigerant cycle pump (10).
2. a kind of dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery according to claim 1, it is characterized in that: the lithium-bromide solution that goes out described absorber (2) is the high pressure generator (3) of first flowing through of connecting, then the low pressure generator of flowing through (4); Or connect low pressure generator (4) then the high pressure generator of flowing through (3) of first flowing through; Or parallel connection flow through high pressure generator (3) and low pressure generator (4).
3. a kind of dual-effect type-II lithium bromide absorption heat pump with water as refrigerant heat recovery according to claim 1, is characterized in that: one or both waste heat source parallel connections flow through evaporimeter (1) and high pressure generator (3); Or the source-series evaporimeter (1) of first flowing through of a kind of waste heat, then the high pressure generator of flowing through (3); Or the source-series high pressure generator (3) of first flowing through of a kind of waste heat, then the evaporimeter of flowing through (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410071227.5A CN103868273B (en) | 2014-03-01 | 2014-03-01 | With the dual-effect type-II lithium bromide absorption heat pump of water as refrigerant heat recovery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071227.5A CN103868273B (en) | 2014-03-01 | 2014-03-01 | With the dual-effect type-II lithium bromide absorption heat pump of water as refrigerant heat recovery |
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| CN103868273A true CN103868273A (en) | 2014-06-18 |
| CN103868273B CN103868273B (en) | 2016-01-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534207A (en) * | 2018-05-02 | 2018-09-14 | 双良节能系统股份有限公司 | With spike heating can direct heating first kind lithium bromide heat pump unit |
| CN110542241A (en) * | 2019-09-19 | 2019-12-06 | 双良节能系统股份有限公司 | Single-double effect composite evaporation-absorption two-section steam type first-class lithium bromide absorption heat pump unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101825371A (en) * | 2010-05-10 | 2010-09-08 | 江苏双良空调设备股份有限公司 | High-efficiency steam double-effect lithium bromide absorption type water chilling unit |
| CN102192618A (en) * | 2010-03-18 | 2011-09-21 | 萨曼斯有限公司 | A high efficiency double-effect chiller heater apparatus |
| KR20120079605A (en) * | 2011-01-05 | 2012-07-13 | 엘지전자 주식회사 | Absorption type cooler and heater |
| CN103256750A (en) * | 2013-05-28 | 2013-08-21 | 烟台荏原空调设备有限公司 | Absorption heat pump unit |
| CN203731736U (en) * | 2014-03-01 | 2014-07-23 | 双良节能系统股份有限公司 | Double-effect lithium bromide absorption heat transformer with function of coolant water heat recovery |
-
2014
- 2014-03-01 CN CN201410071227.5A patent/CN103868273B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192618A (en) * | 2010-03-18 | 2011-09-21 | 萨曼斯有限公司 | A high efficiency double-effect chiller heater apparatus |
| CN101825371A (en) * | 2010-05-10 | 2010-09-08 | 江苏双良空调设备股份有限公司 | High-efficiency steam double-effect lithium bromide absorption type water chilling unit |
| KR20120079605A (en) * | 2011-01-05 | 2012-07-13 | 엘지전자 주식회사 | Absorption type cooler and heater |
| CN103256750A (en) * | 2013-05-28 | 2013-08-21 | 烟台荏原空调设备有限公司 | Absorption heat pump unit |
| CN203731736U (en) * | 2014-03-01 | 2014-07-23 | 双良节能系统股份有限公司 | Double-effect lithium bromide absorption heat transformer with function of coolant water heat recovery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534207A (en) * | 2018-05-02 | 2018-09-14 | 双良节能系统股份有限公司 | With spike heating can direct heating first kind lithium bromide heat pump unit |
| CN108534207B (en) * | 2018-05-02 | 2023-10-20 | 双良节能系统股份有限公司 | First-class lithium bromide heat pump unit with peak heating function and capable of directly supplying heat |
| CN110542241A (en) * | 2019-09-19 | 2019-12-06 | 双良节能系统股份有限公司 | Single-double effect composite evaporation-absorption two-section steam type first-class lithium bromide absorption heat pump unit |
| CN110542241B (en) * | 2019-09-19 | 2024-03-08 | 双良节能系统股份有限公司 | Single-double effect composite steam-absorption two-section type first lithium bromide absorption heat pump unit |
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| CN103868273B (en) | 2016-01-20 |
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Inventor after: He Xianghui Inventor after: Yuan Yi Inventor after: Cai Yiming Inventor after: Jiang Xiaolan Inventor before: Mao Hongcai Inventor before: Yuan Yi Inventor before: Cai Yiming Inventor before: Jiang Xiaolan |
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