CN214891943U - Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit - Google Patents
Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit Download PDFInfo
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- CN214891943U CN214891943U CN202121049232.8U CN202121049232U CN214891943U CN 214891943 U CN214891943 U CN 214891943U CN 202121049232 U CN202121049232 U CN 202121049232U CN 214891943 U CN214891943 U CN 214891943U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 264
- 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 24
- 239000006096 absorbing agent Substances 0.000 claims abstract description 95
- 239000003507 refrigerant Substances 0.000 claims abstract description 57
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 238000005192 partition Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model relates to a direct combustion economic benefits and social benefits type lithium bromide absorption formula cold water, heat pump set are connected with the condenser direct pipe of intaking of taking the diverter valve between high temperature water intake pipe and condenser inlet tube, are connected with the absorber of taking the diverter valve between condenser outlet pipe and the absorber inlet tube and intake the closed tube, are provided with refrigeration, heat supply diverter valve on the inlet tube of absorber, outlet pipe and the outlet pipe of condenser. When the unit is operated for supplying heat according to the working principle of the direct-fired double-effect lithium bromide absorption heat pump unit, hot water is made to advance to the condenser by opening and closing the corresponding switching valve and then is discharged out of the unit through the absorber, so that the hot water reverse-series flow is realized, the working pressure of the condenser is reduced, the temperature of a hot water outlet can be increased to more than 60 ℃, and the heat supply requirement of a common building can be met; meanwhile, a refrigerant water heat exchanger is arranged in the unit, so that the heat of high-temperature refrigerant water is recycled, and the coefficient of performance (COP) of refrigeration and heat supply of the unit is improved.
Description
Technical Field
The utility model relates to an air conditioning equipment technical field, concretely relates to direct combustion economic benefits and social benefits type lithium bromide absorption formula cold water, heat pump set.
Background
A conventional direct-combustion double-effect lithium bromide absorption chiller unit is shown in fig. 1, and the chiller unit is composed of an evaporator 3, an absorber 1, a direct-combustion generator 12 (also called a direct-combustion high-pressure generator in a double-effect unit), a low-pressure generator 17, a condenser 18, a low-temperature heat exchanger 9, a high-temperature heat exchanger 10, a first solution pump 4, a second solution pump 5, a refrigerant pump 2, a control system (not shown in the figure), and pipelines and valves for connecting the components. The solution flow of the unit is a parallel flow, and the cooling water flow is a positive series flow (cooling water firstly enters an absorber and then exits the unit through a condenser). When the unit operates, the heat generated by burning fuel (gas and fuel oil) by the combustor 11 matched with the direct-fired generator 12 is used as driving heat energy to refrigerate and cool cold water entering and exiting the heat exchange tube bundle of the evaporator 3, and cold water for process cooling or building air conditioning with the temperature of more than 5 ℃ is provided for the outside. The unit is mainly used for refrigerating operation according to the working principle of the direct-fired double-effect lithium bromide absorption type water cooling unit, and if the unit is used for heating operation according to the working principle of the direct-fired double-effect lithium bromide absorption type heat pump unit, the unit is limited by the fact that the working pressure of a condenser cannot be too high, the temperature of a hot water outlet is low (generally lower than 50 ℃), and the heat supply requirement is difficult to meet.
A conventional direct-combustion single-effect lithium bromide absorption heat pump unit is shown in fig. 2, and is composed of an evaporator 3, an absorber 1, a direct-combustion generator 12, a condenser 18, a solution heat exchanger 39, a solution pump 38, a refrigerant pump 2, a control system (not shown), and pipes and valves for connecting the respective components. When the unit operates, the heat generated by burning fuel (gas and fuel oil) by the combustor 11 matched with the direct-fired generator 12 is used as compensation heat energy, the heat of the waste heat source hot water entering and exiting the evaporator 3 is recovered, and hot water for process or building heating with the temperature higher than the temperature of the waste heat source hot water is externally provided, so that the unit is mainly applied to places with low-temperature heat sources and medium-temperature heat supply requirements. The unit can only perform heat supply operation according to the working principle of a direct-combustion single-effect first-type lithium bromide absorption heat pump unit, has low coefficient of performance (COP) of heat supply and does not have a refrigeration function.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a direct-fired double-effect lithium bromide absorption cold water and heat pump unit, wherein a condenser water inlet straight-through pipe with a switching valve and an absorber water inlet communicating pipe are arranged, and a refrigeration and heat supply switching valve is arranged on a water inlet pipe, a water outlet pipe and a water outlet pipe of an absorber, so that the hot water flow of the absorber and the condenser can realize an inverse series flow when the unit operates according to the working condition of a double-effect heat pump; meanwhile, a refrigerant water heat exchanger is arranged in the unit, so that the heat of high-temperature refrigerant water is recycled, and the coefficient of performance (COP) of refrigeration and heat supply of the unit is improved.
The purpose of the utility model is realized like this:
a direct-combustion double-effect lithium bromide absorption type cold water and heat pump unit comprises an evaporator, an absorber, a direct-combustion generator, a low-pressure generator, a condenser, a low-temperature heat exchanger, a high-temperature heat exchanger, a solution pump and a refrigerant pump, wherein the solution pump comprises a first solution pump and a second solution pump;
the water outlet pipe of the condenser is connected with a high-temperature water outlet pipe of the unit through a first switching valve of the water outlet pipe, an absorber water outlet straight-through pipe with a second switching valve of the water outlet pipe is connected between the water outlet pipe of the absorber and the high-temperature water outlet pipe, and an absorber water outlet communicating pipe with a third switching valve of the water outlet pipe is connected between the water outlet pipe of the absorber and the water inlet pipe of the condenser.
Preferably, a low-refrigerant water outlet pipe of the low-pressure generator is provided with a refrigerant water heat exchanger, the refrigerant water outlet pipe of the refrigerant water heat exchanger is used as a low-refrigerant water U-shaped pipe to be connected to the evaporator, a liquid inlet pipe of the refrigerant water heat exchanger is connected with an outlet pipe of the second solution pump, and a liquid outlet pipe of the refrigerant water heat exchanger is connected to a low-refrigerant liquid inlet pipe.
Preferably, when the unit operates in a refrigerating mode, the high-temperature water inlet pipe is used as a cooling water inlet pipe, and the high-temperature water outlet pipe is used as a cooling water outlet pipe; when the unit supplies heat, the high-temperature water inlet pipe is used as a hot water inlet pipe, and the high-temperature water outlet pipe is used as a hot water outlet pipe.
Preferably, when the unit operates according to the double-effect refrigeration working condition, the third switching valve of the water inlet pipe, the first switching valve of the water outlet pipe and the third switching valve of the water outlet pipe are opened, the first switching valve of the water inlet pipe, the second switching valve of the water inlet pipe and the second switching valve of the water outlet pipe are closed, cooling water enters the absorber through the high-temperature water inlet pipe and the water inlet pipe of the absorber, then enters the condenser through the water outlet pipe of the absorber, the water outlet communicating pipe of the absorber and the water inlet pipe of the condenser, and finally exits the unit through the water outlet pipe of the condenser and the high-temperature water outlet pipe to form positive serial connection of the cooling water.
Preferably, when the unit operates according to the working condition of the double-effect heat pump, the third switching valve of the water inlet pipe, the first switching valve of the water outlet pipe and the third switching valve of the water outlet pipe are closed, the first switching valve of the water inlet pipe, the second switching valve of the water inlet pipe and the second switching valve of the water outlet pipe are opened, hot water enters the condenser through the high-temperature water inlet pipe, the condenser water inlet straight-through pipe and the condenser water inlet pipe, then enters the absorber through the condenser water outlet pipe, the absorber water inlet communicating pipe and the absorber water inlet pipe, and finally exits the unit through the absorber water outlet pipe, the absorber water outlet straight-through pipe and the high-temperature water outlet pipe, so that a hot water reverse series flow is formed.
Preferably, an evaporation absorber sectional partition plate is arranged in an evaporation absorber cylinder of the unit, the evaporator and the absorber are of a two-section structure, the evaporator comprises a low-pressure section evaporator and a high-pressure section evaporator, the absorber comprises a low-pressure section absorber and a high-pressure section absorber, the refrigerant pump comprises a first refrigerant pump and a second refrigerant pump, and the water flow of the evaporator of the unit is a series flow.
The utility model has the advantages that:
the utility model discloses be connected with the condenser straight-through pipe of intaking of taking the diverter valve between the high temperature water inlet pipe of unit and the condenser inlet tube, be connected with the absorber water intake communicating pipe of taking the diverter valve between condenser outlet pipe and the absorber inlet tube, be provided with refrigeration, heat supply diverter valve on the inlet tube of absorber, outlet pipe and the outlet pipe of condenser, when the unit carries out the heat supply operation according to direct-fired economic benefits and social benefits type lithium bromide absorption heat pump unit theory of operation, through opening and closing corresponding diverter valve, make the advanced condenser of hot water, then go out the unit through the absorber, realize the hot water and fall the series connection flow, thereby reduce condenser operating pressure, hot water outlet temperature can improve to more than 60 ℃, can satisfy ordinary building heat supply demand; meanwhile, a refrigerant water heat exchanger is arranged in the unit, so that the heat of high-temperature refrigerant water is recycled, and the coefficient of performance (COP) of refrigeration and heat supply of the unit is improved.
Drawings
Fig. 1 is a schematic structural view of a conventional direct-combustion double-effect lithium bromide absorption water chiller.
Fig. 2 is a schematic structural view of a conventional direct-combustion single-effect lithium bromide absorption heat pump unit.
Fig. 3 is a schematic structural view of the direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to the first embodiment of the present invention.
Fig. 4 is a schematic structural view of the direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to the second embodiment of the present invention.
Wherein: 1-absorber, 2-refrigerant pump, 3-evaporator, 4-first solution pump, 5-second solution pump, 6-second solution pump outlet pipe, 7-low refrigerant water U-shaped pipe, 8-refrigerant water heat exchanger liquid inlet pipe, 9-low temperature heat exchanger, 10-high temperature heat exchanger, 11-burner, 12-direct combustion type generator, 13-refrigerant water heat exchanger, 14-refrigerant water heat exchanger liquid outlet pipe, 15-low refrigerant water outlet pipe, 16-low refrigerant liquid inlet pipe, 17-low pressure generator, 18-condenser, 19-condenser water inlet pipe, 20-condenser water outlet pipe, 21-water outlet pipe first switching valve, 22-high temperature water outlet pipe, 23-absorber water outlet straight-through pipe, 24-water outlet pipe second switching valve, 25-absorber water outlet communicating pipe, 26-water outlet pipe third switching valve, 27-absorber water outlet pipe, 28-evaporation absorber cylinder, 29-evaporator water outlet pipe, 30-evaporator water inlet pipe, 31-condenser water inlet straight-through pipe, 32-water inlet pipe first switching valve, 33-absorber water inlet communicating pipe, 34-water inlet pipe second switching valve, 35-high temperature water inlet pipe, 36-water inlet pipe third switching valve, 37-absorber water inlet pipe, 38-solution pump, 39-solution heat exchanger, 40-evaporation absorber segmented partition board, 41-low pressure section absorber, 42-low pressure section evaporator, 43-first refrigerant pump, 44-second refrigerant pump, 45-high pressure section evaporator and 46-high pressure section absorber.
Detailed Description
The first embodiment is shown in fig. 3, and the utility model relates to a direct-fired double-effect lithium bromide absorption cold water and heat pump unit, which is composed of an evaporator 3, an absorber 1, a direct-fired generator 12, a low-pressure generator 17, a condenser 18, a low-temperature heat exchanger 9, a high-temperature heat exchanger 10, a refrigerant-water heat exchanger 13, a solution pump, a refrigerant pump 2, a control system (not shown in the figure) and pipelines and valves for connecting all the components. Wherein the solution pump comprises a first solution pump 4 and a second solution pump 5. A condenser water inlet straight-through pipe 31 is connected between a high-temperature water inlet pipe 35 of the unit and a condenser water inlet pipe 19 (the high-temperature water inlet pipe 35 is a cooling water inlet pipe during refrigerating operation and a hot water inlet pipe during heating operation of the unit), and a first switching valve 32 of the water inlet pipe is arranged on the pipe; an absorber water inlet communicating pipe 33 is connected between the condenser water outlet pipe 20 and the absorber water inlet pipe 37, and a water inlet pipe second switching valve 34 is arranged on the pipe; the high temperature water inlet pipe 35 is connected to an absorber inlet pipe 37 through an inlet pipe third switching valve 36. A condenser water outlet pipe 20 of the unit is connected with a high-temperature water outlet pipe 22 through a water outlet pipe first switching valve 21 (the high-temperature water outlet pipe 22 is a cooling water outlet pipe during refrigerating operation and a hot water outlet pipe during heating operation of the unit); an absorber water outlet straight pipe 23 is connected between the absorber water outlet pipe 27 and the high-temperature water outlet pipe 22, and a water outlet pipe second switching valve 24 is arranged on the pipe; an absorber water outlet communicating pipe 25 is connected between the absorber water outlet pipe 27 and the condenser water inlet pipe 19, and a water outlet pipe third switching valve 26 is arranged on the pipe. A refrigerant water heat exchanger 13 is arranged on the low refrigerant water outlet pipe 15, and the refrigerant water outlet pipe of the refrigerant water heat exchanger 13 is the low refrigerant water U-shaped pipe 7 and is connected to the evaporator 3; the liquid inlet pipe 8 of the refrigerant-water heat exchanger is connected with the outlet pipe 6 of the second solution pump, and the liquid outlet pipe 14 of the refrigerant-water heat exchanger is connected with the low-emission liquid inlet pipe 16.
When the unit operates according to the double-effect refrigeration working condition, the water inlet pipe third switching valve 36, the water outlet pipe first switching valve 21 and the water outlet pipe third switching valve 26 are opened, the water inlet pipe first switching valve 32, the water inlet pipe second switching valve 34 and the water outlet pipe second switching valve 24 are closed, cooling water enters the absorber 1 through the high-temperature water inlet pipe 35 and the absorber water inlet pipe 37, then enters the condenser 17 through the absorber water outlet pipe 27, the absorber water outlet communicating pipe 25 and the condenser water inlet pipe 19, and finally exits the unit through the condenser water outlet pipe 20 and the high-temperature water outlet pipe 22 to form positive serial connection of the cooling water. The high-temperature refrigerant water from the low-pressure generator 17 exchanges heat with part of the low-temperature dilute solution conveyed by the second solution pump 5 in the refrigerant water heat exchanger 13 to be cooled and then enters the evaporator 3 through the low-refrigerant water U-shaped pipe 7, so that the heat recovery of the high-temperature refrigerant water is realized, and the coefficient of performance (COP) of the unit is improved.
When the unit operates according to the working condition of the double-effect heat pump, the water inlet pipe third switching valve 36, the water outlet pipe first switching valve 21 and the water outlet pipe third switching valve 26 are closed, the water inlet pipe first switching valve 32, the water inlet pipe second switching valve 34 and the water outlet pipe second switching valve 24 are opened, hot water enters the condenser 18 through the high-temperature water inlet pipe 35, the condenser water inlet straight-through pipe 31 and the condenser water inlet pipe 19, then enters the absorber 1 through the condenser water outlet pipe 20, the absorber water inlet communicating pipe 33 and the absorber water inlet pipe 37, and finally exits the unit through the absorber water outlet pipe 27, the absorber water outlet straight-through pipe 23 and the high-temperature water outlet pipe 22 to form a hot water back-and-forth flow path, so that the working pressure of the condenser is effectively reduced, the temperature of a hot water outlet can be increased to be more than 60 ℃, and the heat supply requirement of a common building can be met. The high-temperature refrigerant water from the low-pressure generator 17 exchanges heat with part of the low-temperature dilute solution conveyed by the second solution pump 5 in the refrigerant water heat exchanger 13 to be cooled and then enters the evaporator 3 through the low-refrigerant water U-shaped pipe 7, so that the heat recovery of the high-temperature refrigerant water is realized, and the coefficient of performance (COP) of the unit is improved.
Second embodiment referring to fig. 4, an evaporation absorber sectional partition 40 is provided in the evaporation absorber cylinder 28 of the unit to divide the evaporator into a low-pressure section evaporator 42 and a high-pressure section evaporator 45, and the absorber is divided into a low-pressure section absorber 41 and a high-pressure section absorber 46, and meanwhile, the refrigerant pump is provided according to a first refrigerant pump 43 and a second refrigerant pump 44, so that the evaporator and the absorber of the unit are in a two-section structure, and the water flow of the evaporator of the unit is a series flow. The remaining structure is the same as that of the first embodiment. The working pressure of the high-pressure section evaporator 45 and the high-pressure section absorber 46 of the two-section evaporation absorber unit is higher, which is beneficial to reducing the dilute solution concentration of the high-pressure section absorber 46, increasing the concentration difference of the circulating solution and improving the COP (coefficient of performance) of the unit. When the unit operates according to the working condition of the double-effect heat pump, the outlet temperature of the residual heat water is favorably reduced under the condition of the same inlet and outlet temperature of the hot water, and the residual heat is deeply recycled; under the same conditions of the inlet temperature and the outlet temperature of the residual hot water, the hot water outlet temperature is favorably improved, and the requirement of higher temperature heat supply is met.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a direct-fired double-effect type lithium bromide absorption formula cold water, heat pump set, includes evaporimeter (3), absorber (1), direct-fired type generator (12), low pressure generator (17), condenser (18), low temperature heat exchanger (9), high temperature heat exchanger (10), solution pump and cryogen pump (2), the solution pump includes first solution pump (4) and second solution pump (5), its characterized in that:
a condenser water inlet straight-through pipe (31) with a water inlet pipe first switching valve (32) is connected between a high-temperature water inlet pipe (35) of the unit and a condenser water inlet pipe (19) of a condenser (18), the high-temperature water inlet pipe (35) is connected with an absorber water inlet pipe (37) of an absorber (1) through a water inlet pipe third switching valve (36), and an absorber water inlet communicating pipe (33) with a water inlet pipe second switching valve (34) is connected between a condenser water outlet pipe (20) of the condenser (18) and the absorber water inlet pipe (37);
the condenser water outlet pipe (20) is connected with a high-temperature water outlet pipe (22) of the unit through a water outlet pipe first switching valve (21), an absorber water outlet straight-through pipe (23) with a water outlet pipe second switching valve (24) is connected between an absorber water outlet pipe (27) of the absorber (1) and the high-temperature water outlet pipe (22), and an absorber water outlet communicating pipe (25) with a water outlet pipe third switching valve (26) is connected between the absorber water outlet pipe (27) and the condenser water inlet pipe (19).
2. The direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to claim 1, characterized in that: a low-refrigerant water outlet pipe (15) of the low-pressure generator (17) is provided with a refrigerant water heat exchanger (13), the refrigerant water outlet pipe of the refrigerant water heat exchanger (13) is used as a low-refrigerant water U-shaped pipe (7) to be connected into the evaporator (3), a liquid inlet pipe (8) of the refrigerant water heat exchanger is connected with a second solution pump outlet pipe (6), and a liquid outlet pipe (14) of the refrigerant water heat exchanger is connected with a low-refrigerant liquid inlet pipe (16).
3. The direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to claim 1, characterized in that: when the unit operates in a refrigerating mode, the high-temperature water inlet pipe (35) serves as a cooling water inlet pipe, and the high-temperature water outlet pipe (22) serves as a cooling water outlet pipe; when the unit is in heating operation, the high-temperature water inlet pipe (35) is used as a hot water inlet pipe, and the high-temperature water outlet pipe (22) is used as a hot water outlet pipe.
4. The direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to claim 1, characterized in that: when the unit operates according to the double-effect refrigeration working condition, the third switching valve (36) of the water inlet pipe, the first switching valve (21) of the water outlet pipe and the third switching valve (26) of the water outlet pipe are opened, the first switching valve (32) of the water inlet pipe, the second switching valve (34) of the water inlet pipe and the second switching valve (24) of the water outlet pipe are closed, cooling water enters the absorber (1) through the high-temperature water inlet pipe (35) and the absorber water inlet pipe (37), then enters the condenser (18) through the absorber water outlet pipe (27), the absorber water outlet communicating pipe (25) and the condenser water inlet pipe (19), and finally exits the unit through the condenser water outlet pipe (20) and the high-temperature water outlet pipe (22), so that cooling water is in series connection.
5. The direct-fired double-effect lithium bromide absorption cold water and heat pump unit according to claim 1 or 4, characterized in that: when the unit operates according to the working condition of the double-effect heat pump, the third switching valve (36) of the water inlet pipe, the first switching valve (21) of the water outlet pipe and the third switching valve (26) of the water outlet pipe are closed, the first switching valve (32) of the water inlet pipe, the second switching valve (34) of the water inlet pipe and the second switching valve (24) of the water outlet pipe are opened, hot water enters the condenser (18) through the high-temperature water inlet pipe (35), the water inlet straight-through pipe (31) of the condenser and the water inlet pipe (19) of the condenser, then enters the absorber (1) through the water outlet pipe (20) of the condenser, the water inlet communicating pipe (33) of the absorber and the water inlet pipe (37) of the absorber, and finally exits the unit through the water outlet pipe (27) of the absorber, the water outlet straight-through pipe (23) of the absorber and the high-temperature water outlet pipe (22), so that a hot water reverse-series flow is formed.
6. The direct-fired double-effect lithium bromide absorption type cold water and heat pump unit according to claim 1, characterized in that: be provided with evaporation absorber segmentation baffle (40) in evaporation absorber barrel (28) of unit, evaporimeter (3), absorber (1) are the two-stage type structure, and evaporimeter (3) include low pressure section evaporimeter (42) and high pressure section evaporimeter (45), and absorber (1) includes low pressure section absorber (41) and high pressure section absorber (46), and refrigerant pump (2) include first refrigerant pump (43) and second refrigerant pump (44) setting, and the evaporimeter water flow of unit is the series flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049232.8U CN214891943U (en) | 2021-05-17 | 2021-05-17 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049232.8U CN214891943U (en) | 2021-05-17 | 2021-05-17 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214891943U true CN214891943U (en) | 2021-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121049232.8U Withdrawn - After Issue CN214891943U (en) | 2021-05-17 | 2021-05-17 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214891943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154719A (en) * | 2021-05-17 | 2021-07-23 | 双良节能系统股份有限公司 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
-
2021
- 2021-05-17 CN CN202121049232.8U patent/CN214891943U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154719A (en) * | 2021-05-17 | 2021-07-23 | 双良节能系统股份有限公司 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
| CN113154719B (en) * | 2021-05-17 | 2024-06-14 | 双良节能系统股份有限公司 | Direct-fired double-effect lithium bromide absorption type cold water and heat pump unit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240614 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240614 |