CN113266958A - Two-stage first-class lithium bromide absorption heat pump unit - Google Patents
Two-stage first-class lithium bromide absorption heat pump unit Download PDFInfo
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- CN113266958A CN113266958A CN202110623234.1A CN202110623234A CN113266958A CN 113266958 A CN113266958 A CN 113266958A CN 202110623234 A CN202110623234 A CN 202110623234A CN 113266958 A CN113266958 A CN 113266958A
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- stage
- absorber
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- pump
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 48
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 30
- 239000006096 absorbing agent Substances 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 230000008020 evaporation Effects 0.000 claims abstract description 14
- 239000003507 refrigerant Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005192 partition Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 17
- 239000002918 waste heat Substances 0.000 description 9
- 239000003245 coal Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B33/00—Boilers; Analysers; Rectifiers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B37/00—Absorbers; Adsorbers
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a two-stage type first-class lithium bromide absorption heat pump unit.A graded partition plate of an evaporation absorber in an evaporation absorber cylinder of the unit divides the inside of the evaporation absorber cylinder into a first-class cavity and a second-class cavity, wherein a first-class generator and a first-class absorber are arranged in the first-class cavity, and an evaporator and a second-class absorber are arranged in the second-class cavity; the second-stage absorber, the first-stage generation pump, the first-stage heat exchanger, the first-stage generator, the absorption pump and the solution communicating pipes among the components form a first-stage solution circulating system, and the first-stage absorber, the second-stage generation pump, the second-stage heat exchanger, the second-stage generator and the solution communicating pipes among the components form a second-stage solution circulating system. The invention adopts the structure of the two-stage generator and the two-stage absorber, thereby greatly reducing the generation temperature of the first-stage generator and the second-stage generator, and heating the lithium bromide solution by using high-temperature heating medium with lower temperature (such as hot water, steam or heat conducting oil with the temperature of more than 85 ℃) as compensation heat energy.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a two-stage first-type lithium bromide absorption heat pump unit.
Background
A conventional single-effect first-type lithium bromide absorption heat pump unit is shown in fig. 1, and the unit is composed of an evaporator 3, an absorber 34, a generator 36, a condenser 23, a heat exchanger 35, a solution pump 33, a refrigerant pump 4, a control system (not shown in the figure), and pipelines and valves for connecting various components, wherein a medium-temperature hot water flow of the unit is a positive series flow (medium-temperature hot water is firstly absorbed by the absorber and then is discharged from the unit through the condenser), and the generator 36 and the absorber 34 are both of a single-stage structure. When the unit operates, the heat of high-temperature heat medium (hot water, heat conducting oil, steam and the like) entering the generator 36 is used as compensation heat energy, the heat of residual heat water entering and exiting the evaporator 3 is recovered, and medium-temperature hot water with the temperature higher than the temperature of the residual heat water for process or building heating is externally provided. The machine set has high requirement on the temperature of the high-temperature heat medium (generally steam with the pressure of more than 0.4MPa and hot water or heat conducting oil with the temperature of more than 115 ℃) and is not suitable for places with low temperature of the high-temperature heat medium.
Disclosure of Invention
The invention aims to overcome the defects and provides a two-stage first-type lithium bromide absorption heat pump unit, which is formed by adding a first-stage generator, a first-stage absorber, a first-stage heat exchanger, a generating pump and an absorption pump on the basis of the original single-effect first-type lithium bromide absorption heat pump unit to form a two-stage generation two-stage absorption structure, so that high-temperature heat media with lower temperature (such as hot water, steam or heat conducting oil with the temperature of more than 85 ℃) can be used as compensation heat energy, the application conditions of the first-type lithium bromide absorption heat pump unit are effectively expanded, and the waste heat recovery and utilization are facilitated and the high-grade heat energy consumption is reduced.
The purpose of the invention is realized as follows:
a two-stage first-type lithium bromide absorption heat pump unit comprises an evaporator, an absorber, a generator, a condenser, a heat exchanger, a solution pump and a refrigerant pump, wherein the absorber comprises a first-stage absorber and a second-stage absorber, the generator comprises a first-stage generator and a second-stage generator, the heat exchanger comprises a first-stage heat exchanger and a second-stage heat exchanger, the solution pump comprises a first-stage generating pump, a second-stage generating pump and an absorption pump,
an evaporation absorber grading clapboard is arranged in an evaporation absorber cylinder of the unit and divides the inside of the evaporation absorber cylinder into a primary cavity and a secondary cavity, a primary generator and a primary absorber are arranged in the primary cavity, and an evaporator and a secondary absorber are arranged in the secondary cavity;
the second-stage absorber, the first-stage generation pump, the first-stage heat exchanger, the first-stage generator, the absorption pump and the solution communicating pipes among the components form a first-stage solution circulating system, and the first-stage absorber, the second-stage generation pump, the second-stage heat exchanger, the second-stage generator and the solution communicating pipes among the components form a second-stage solution circulating system.
Preferably, the high-temperature heat medium flow of the first-stage generator and the second-stage generator is a forward series flow, a reverse series flow or a parallel flow.
Preferably, the medium-temperature hot water flow of the secondary absorber, the primary absorber and the condenser is a forward series flow, an inverse series flow or a parallel series flow.
The invention has the beneficial effects that:
the generator and the absorber of the unit adopt a two-stage generator and two-stage absorber structure, the generation temperature of the first-stage generator and the second-stage generator is greatly reduced, so that high-temperature heating media with lower temperature (such as hot water, steam or heat conducting oil with the temperature of more than 85 ℃) can be used as compensation heat energy to heat the lithium bromide solution, the unit is driven to carry out waste heat recovery and heat supply operation, the application conditions of the first type of lithium bromide absorption heat pump unit are effectively widened, and the waste heat recovery and utilization are facilitated and the high-grade heat energy consumption is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a single-effect first-type lithium bromide absorption heat pump unit in the prior art.
Fig. 2 is a schematic structural view of a two-stage first-type lithium bromide absorption heat pump unit according to a first embodiment of the present invention.
Fig. 3 is a schematic structural view of a two-stage first-type lithium bromide absorption heat pump unit according to a second embodiment of the present invention.
Fig. 4 is a schematic structural view of a two-stage first-type lithium bromide absorption heat pump unit according to a third embodiment of the present invention.
Fig. 5 is a schematic structural view of a two-stage first-type lithium bromide absorption heat pump unit according to a fourth embodiment of the present invention.
Fig. 6 is a schematic structural view of a two-stage first-type lithium bromide absorption heat pump unit according to a fifth embodiment of the present invention.
Wherein: 1-second-stage absorber, 2-first-stage generation pump, 3-evaporator, 4-refrigerant pump, 5-first-stage absorber, 6-first-stage generation pump liquid outlet pipe, 7-second-stage generation pump, 8-first-stage generator, 9-absorption pump, 10-second-stage generation pump liquid outlet pipe, 11-first-stage heat exchanger, 12-first-stage generator liquid outlet pipe, 13-first-stage generator liquid inlet pipe, 14-high-temperature heat medium inlet pipe, 15-first-stage cavity, 16-second-stage heat exchanger, 17-first-stage absorber liquid inlet pipe, 18-high-temperature heat medium outlet pipe, 19-second-stage generator liquid inlet pipe, 20-second-stage generator liquid outlet pipe, 21-second-stage generator heat medium inlet pipe, 22-second-stage generator, 23-condenser, 24-medium-temperature hot water outlet pipe, refrigerant outlet pipe, heat exchanger, 25-absorber water outlet pipe, 26-evaporator absorber grading baffle, 27-evaporator absorber cylinder, 28-secondary chamber, 29-waste heat water outlet pipe, 30-waste heat water inlet pipe, 31-secondary absorber liquid inlet pipe, 32-medium temperature hot water inlet pipe, 33-solution pump, 34-absorber, 35-heat exchanger, 36-generator, 37-secondary generator heat medium outlet pipe, 38-primary generator heat medium inlet pipe, 39-primary generator heat medium outlet pipe and 40-condenser water outlet pipe.
Detailed Description
First embodiment referring to fig. 2, the present invention relates to a two-stage first-type lithium bromide absorption heat pump unit, which is composed of an evaporator 3, an absorber, a generator, a condenser, a heat exchanger, a solution pump, a refrigerant pump, a control system (not shown in the figure), and pipelines and valves for connecting the components. Wherein, the absorber comprises a first-stage absorber 5 and a second-stage absorber 1, the generator comprises a first-stage generator 8 and a second-stage generator 22, the heat exchanger comprises a first-stage heat exchanger 11 and a second-stage heat exchanger 16, and the solution pump comprises a first-stage generating pump 2, a second-stage generating pump 7 and an absorption pump 9. An evaporation absorber grading clapboard 26 is arranged in an evaporation absorber cylinder 27 of the unit, the evaporation absorber grading clapboard 26 divides the inside of the evaporation absorber cylinder 27 into a primary chamber 15 and a secondary chamber 28, a primary generator 8 and a primary absorber 5 are arranged in the primary chamber 15, and an evaporator 3 and a secondary absorber 1 are arranged in the secondary chamber 28. A primary generator pump liquid outlet pipe 6 is used as a low-temperature dilute solution inlet pipe of a primary heat exchanger 11 and connected to the primary heat exchanger 11, and a dilute solution outlet pipe of the primary heat exchanger 11 is a primary generator liquid inlet pipe 13 and is connected to the primary generator 8; a concentrated solution outlet pipe of the primary generator 8, namely a primary generator liquid outlet pipe 12, is used as a high-temperature concentrated solution inlet pipe of the primary heat exchanger 11 and is connected to the primary heat exchanger 11, and an absorption pump 9 is arranged on the primary generator liquid outlet pipe 12; the concentrated solution outlet pipe of the first-stage heat exchanger 11 is the liquid inlet pipe 31 of the second-stage absorber and is connected to the second-stage absorber 1, so that the second-stage absorber 1, the first-stage generating pump 2, the first-stage heat exchanger 11, the first-stage generator 8, the absorbing pump 9 and solution communicating pipes among all the components form a first-stage solution circulating system. A secondary generator pump liquid outlet pipe 10 is used as a low-temperature dilute solution inlet pipe of a secondary heat exchanger 16 and connected to the secondary heat exchanger 16, and a dilute solution outlet pipe of the secondary heat exchanger 16 is a secondary generator liquid inlet pipe 19 and is connected to a secondary generator 22; a concentrated solution outlet pipe of the secondary generator 22, namely a secondary generator liquid outlet pipe 20, is used as a high-temperature concentrated solution inlet pipe of the secondary heat exchanger 16 and connected to the secondary heat exchanger 16, and a concentrated solution outlet pipe of the secondary heat exchanger 16, namely a primary absorber liquid inlet pipe 17, is connected to the primary absorber 5, so that the primary absorber 5, the secondary generating pump 7, the secondary heat exchanger 16, the secondary generator 22 and solution communicating pipes among all parts form a secondary solution circulating system. The high-temperature heat medium flow of the primary generator 8 and the secondary generator 22 is a positive series flow, a high-temperature heat medium inlet pipe 14 of the unit is connected to the primary generator 8, a heat medium outlet pipe of the primary generator 8 is connected to the secondary generator 22 as a secondary generator heat medium inlet pipe 21 of the secondary generator 22, and a high-temperature heat medium outlet pipe 18 is connected from the secondary generator 22; the flow of the medium temperature hot water of the secondary absorber 1, the primary absorber 5 and the condenser 23 is a positive series flow, a medium temperature hot water inlet pipe 32 of the unit is connected to the secondary absorber 1, a medium temperature hot water outlet pipe of the absorber, namely an absorber water outlet pipe 25, is connected from the primary absorber 5 and is used as the medium temperature hot water inlet pipe of the condenser 23 to be connected to the condenser 23, and a medium temperature hot water outlet pipe 24 is connected from the condenser 23. The mode is more suitable for application places with larger temperature difference between the high-temperature hot coal inlet and the high-temperature hot coal outlet and higher requirement on the temperature of the medium-temperature hot water outlet.
When the unit operates, the primary solution circulating system and the secondary solution circulating system synchronously cooperate with each other to operate. The high-temperature heating medium enters the unit through a high-temperature heating medium inlet pipe 14, sequentially enters the primary generator 8 and the secondary generator 22, heats the lithium bromide solution in the generators, and then exits the unit through a high-temperature heating medium outlet pipe 18. The waste heat water enters the heat exchange tube bundle of the unit evaporator 3 through the waste heat water inlet pipe 30, is evaporated by the refrigerant water outside the heat exchange tube bundle to absorb heat and reduce temperature, and then exits the unit through the waste heat water outlet pipe 29. The medium temperature hot water enters the unit through the medium temperature hot water inlet pipe 32, sequentially enters the secondary absorber 1, the primary absorber 5 and the condenser 23, is heated by the absorption heat in the absorber and the condensation heat in the condenser 23, and then exits the unit through the medium temperature hot water outlet pipe 24. Since the high-temperature refrigerant vapor generated in the primary generator 8 directly enters the primary absorber 5 and is absorbed by the concentrated solution from the secondary generator 22, the working pressure in the primary chamber 15 is much lower than the working pressures of the secondary generator 22 and the condenser 23, thereby greatly reducing the solution generation temperature in the primary generator 8 (the generation temperature can be reduced to about 80 ℃). Meanwhile, under the cooling action of medium-temperature hot water in the heat exchange tube bundle of the primary absorber 5 and the pressure environment in the primary cavity 15, the concentration of a dilute solution in the primary absorber 5 can be greatly reduced to below 45%, and after the dilute solution enters the secondary generator 22, the solution generation temperature of the secondary generator 22 can be greatly reduced to about 80 ℃, so that a lithium bromide solution can be heated by a high-temperature heating medium with the temperature of above 85 ℃, and a unit is driven to perform waste heat recovery and heat supply operation.
Second embodiment referring to fig. 3, the flow of the high temperature heat medium of the primary generator 8 and the secondary generator 22 is an inverse series flow, the high temperature heat medium inlet pipe 14 of the unit is connected to the secondary generator 22, the high temperature heat medium outlet pipe of the secondary generator 22, the secondary generator heat medium outlet pipe 37, is connected to the primary generator 8 as the high temperature heat medium inlet pipe of the primary generator 8, and the high temperature heat medium outlet pipe 18 is connected from the primary generator 8. The remaining structure is the same as that of the first embodiment. The mode is more suitable for application places with larger temperature difference between the inlet and the outlet of the high-temperature hot coal and higher temperature of the residual heat water outlet.
Third embodiment referring to fig. 4, the high temperature heat medium flow path of the primary generator 8 and the secondary generator 22 is a parallel flow path, and the high temperature heat medium inlet pipe of the primary generator 8, the primary generator heat medium inlet pipe 38, and the high temperature heat medium inlet pipe of the secondary generator 22, the secondary generator heat medium inlet pipe 21 are simultaneously connected from the high temperature heat medium inlet pipe 14 of the unit, and the high temperature heat medium outlet pipe of the primary generator 8, the primary generator heat medium outlet pipe 39, and the high temperature heat medium outlet pipe of the secondary generator 22, the secondary generator heat medium outlet pipe 37, are simultaneously connected to the high temperature heat medium outlet pipe 18 of the unit. The remaining structure is the same as that of the first embodiment. The mode is more suitable for application places with smaller temperature difference between the inlet and the outlet of the high-temperature hot coal and higher requirement on the temperature of the outlet of the medium-temperature hot water.
Fourth embodiment referring to fig. 5, the medium temperature hot water flow paths of the two-stage absorber 1, the one-stage absorber 5 and the condenser 23 are parallel-series flow paths. The medium temperature hot water flow of the secondary absorber 1 and the primary absorber 5 is a parallel flow, the medium temperature hot water inlet pipe 32 is divided into two branch pipes to be respectively connected to the primary absorber 1 and the secondary absorber 5, the absorber water outlet pipe 25 is a medium temperature water outlet merging pipe of the primary absorber 1 and the secondary absorber 5, the absorber water outlet pipe 25 is used as a medium temperature hot water inlet pipe of the condenser 23 and is connected to the condenser 23, and the medium temperature hot water outlet pipe 24 is connected from the condenser 23. The remaining structure is the same as that of the first embodiment. The mode is more suitable for application places with larger temperature difference of the high-temperature heating medium inlet and the high-medium-temperature hot water inlet.
Fifth embodiment referring to fig. 6, the medium temperature hot water flow of the secondary absorber 1, the primary absorber 5 and the condenser 23 is an inverse series flow. The medium temperature hot water inlet pipe 32 is used as the medium temperature hot water inlet pipe of the condenser 23 and connected to the condenser 23, the medium temperature hot water outlet pipe of the condenser 23, namely the condenser outlet pipe 40 is used as the medium temperature hot water inlet pipe of the secondary absorber 1 and connected to the secondary absorber 1, the medium temperature hot water flow path structures of the secondary absorber 1 and the primary absorber 5 are in a series structure, and the medium temperature hot water outlet pipe 24 is connected from the primary absorber 5. The remaining structure is the same as that of the first embodiment. The mode is more suitable for application places with larger temperature difference between the high-temperature hot coal inlet and the high-temperature hot coal outlet and lower temperature of the medium-temperature hot water inlet.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.
Claims (3)
1. The utility model provides a first type lithium bromide absorption heat pump unit of two-stage type, includes evaporimeter (3), absorber, generator, condenser (23), heat exchanger, solution pump and refrigerant pump, its characterized in that: the absorber comprises a first-stage absorber (5) and a second-stage absorber (1), the generator comprises a first-stage generator (8) and a second-stage generator (22), the heat exchanger comprises a first-stage heat exchanger (11) and a second-stage heat exchanger (16), the solution pump comprises a first-stage generating pump (2), a second-stage generating pump (7) and an absorption pump (9),
an evaporation absorber grading clapboard (26) is arranged in an evaporation absorber cylinder (27) of the unit, the evaporation absorber grading clapboard (26) divides the inside of the evaporation absorber cylinder (27) into a primary chamber (15) and a secondary chamber (28), a primary generator (8) and a primary absorber (5) are arranged in the primary chamber (15), and an evaporator (3) and a secondary absorber (1) are arranged in the secondary chamber (28);
the secondary absorber (1), the primary generating pump (2), the primary heat exchanger (11), the primary generator (8), the absorbing pump (9) and solution communicating pipes among all the components form a primary solution circulating system, and the primary absorber (5), the secondary generating pump (7), the secondary heat exchanger (16), the secondary generator (22) and solution communicating pipes among all the components form a secondary solution circulating system.
2. The two-stage type first-type lithium bromide absorption heat pump unit according to claim 1, wherein: the high-temperature heat medium flow of the first-stage generator (8) and the second-stage generator (22) is a positive series flow, a reverse series flow or a parallel flow.
3. The two-stage type first-type lithium bromide absorption heat pump unit according to claim 1 or 2, characterized in that: the medium temperature hot water flow of the secondary absorber (1), the primary absorber (5) and the condenser (23) is a forward series flow, an inverse series flow or a parallel series flow.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623234.1A CN113266958B (en) | 2021-06-04 | 2021-06-04 | Two-stage first-class lithium bromide absorption heat pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623234.1A CN113266958B (en) | 2021-06-04 | 2021-06-04 | Two-stage first-class lithium bromide absorption heat pump unit |
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| CN113266958A true CN113266958A (en) | 2021-08-17 |
| CN113266958B CN113266958B (en) | 2024-06-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202361686U (en) * | 2011-11-26 | 2012-08-01 | 双良节能系统股份有限公司 | 1.5-effect lithium bromide adsorption refrigerating/heating pump unit |
| 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 |
| CN103808059A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Secondary-generation and secondary-absorption second-class lithium bromide absorption heat pump unit |
| CN217110077U (en) * | 2021-06-04 | 2022-08-02 | 双良节能系统股份有限公司 | Two-stage first-class lithium bromide absorption heat pump unit |
-
2021
- 2021-06-04 CN CN202110623234.1A patent/CN113266958B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202361686U (en) * | 2011-11-26 | 2012-08-01 | 双良节能系统股份有限公司 | 1.5-effect lithium bromide adsorption refrigerating/heating pump unit |
| 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 |
| CN103808059A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Secondary-generation and secondary-absorption second-class lithium bromide absorption heat pump unit |
| CN217110077U (en) * | 2021-06-04 | 2022-08-02 | 双良节能系统股份有限公司 | Two-stage first-class lithium bromide absorption heat pump unit |
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