CN110307665B - Direct-fired lithium bromide absorption type cold water and heat pump unit - Google Patents
Direct-fired lithium bromide absorption type cold water and heat pump unit Download PDFInfo
- Publication number
- CN110307665B CN110307665B CN201910614192.8A CN201910614192A CN110307665B CN 110307665 B CN110307665 B CN 110307665B CN 201910614192 A CN201910614192 A CN 201910614192A CN 110307665 B CN110307665 B CN 110307665B
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- condenser
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- direct
- absorber
- pressure generator
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 35
- 239000006096 absorbing agent Substances 0.000 claims abstract description 54
- 238000005057 refrigeration Methods 0.000 claims abstract description 13
- 239000000498 cooling water Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 30
- 239000002826 coolant Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a direct-fired lithium bromide absorption cold water and heat pump unit, which comprises an evaporator, an absorber, a direct-fired high-pressure generator, a low-pressure generator, a condenser, a high-temperature heat exchanger, a low-temperature heat exchanger, a solution pump and a refrigerant pump, wherein the condenser comprises a first condenser and a second condenser, and a first valve is arranged on a water inlet pipe of the first condenser. The invention adds a condenser and a cooling water switching valve on the basis of the traditional direct-fired double-effect lithium bromide absorption type water chilling unit, so that the unit can perform refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption type water chilling unit and can perform heating operation according to the working principle of the direct-fired single-effect lithium bromide absorption type heat pump unit, can be used for one machine, provides refrigeration and heating equipment for places with application conditions, reduces equipment investment cost and saves equipment occupied space.
Description
Technical Field
The invention relates to a lithium bromide absorption refrigerating and heating unit, belonging to the technical field of air conditioning equipment.
Background
The conventional direct-fired double-effect lithium bromide absorption chiller is composed of an evaporator 3, an absorber 1, a direct-fired high-pressure generator 17, a low-pressure generator 29, a condenser 44, a high-temperature heat exchanger 13, a low-temperature heat exchanger 11, a first solution pump 4, a second solution pump 5, a refrigerant pump 2, a control system (not shown in the figure), pipelines and valves for connecting the components, wherein the solution circulation flow of the chiller is a parallel flow, the cooling water flow is a series flow, and the cooling water enters and exits the chiller through an absorber water inlet pipe 41 and a condenser water outlet pipe 45. When the unit operates, heat generated by the combustion of fuel (fuel gas and fuel oil) by a combustor 16 arranged on a direct-fired high-pressure generator 17 is used as driving heat energy to cool and cool cold water entering and exiting the heat exchange tube bundles of the evaporator 3, and cold water for process cooling or building air conditioning with the temperature of more than 5 ℃ is externally provided. The unit can only perform refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption type water chilling unit, and does not have a heat pump heating function.
Disclosure of Invention
The invention aims to overcome the defects and provide a direct-fired lithium bromide absorption type cold water and heat pump unit, and by additionally arranging a condenser, a cooling water switching valve and other structures on the basis of the traditional direct-fired double-effect lithium bromide absorption type cold water unit, the unit can perform refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption type cold water unit and also can perform heating operation according to the working principle of the direct-fired single-effect lithium bromide absorption type heat pump unit, can be used for one machine, provides refrigeration and heat supply equipment for places with application conditions, reduces equipment investment cost and saves equipment occupation space.
The purpose of the invention is realized in the following way:
The direct-fired lithium bromide absorption cold water and heat pump unit comprises an evaporator, an absorber, a direct-fired high-pressure generator, a low-pressure generator, a condenser, a high-temperature heat exchanger, a low-temperature heat exchanger, a solution pump and a refrigerant pump, wherein the condenser comprises a first condenser and a second condenser, the solution pump comprises a first solution pump and a second solution pump, and a high-emission steam outlet pipe of the direct-fired high-pressure generator is simultaneously connected with a low-emission steam inlet pipe of the low-pressure generator and a first condenser steam inlet pipe of the first condenser; the absorber outlet pipe of the absorber is connected with the first condenser inlet pipe of the first condenser and the second condenser inlet pipe of the second condenser at the same time, and the first condenser inlet pipe is provided with a first valve.
Preferably, the second condenser inlet tube is provided with a second valve.
Preferably, the high-cross-concentration solution outlet pipe of the high-temperature heat exchanger and the low-cross-concentration solution outlet pipe of the low-temperature heat exchanger are combined on the absorber liquid inlet pipe of the absorber.
Preferably, the absorber liquid inlet pipe of the absorber is divided into a first absorber liquid inlet pipe and a second absorber liquid inlet pipe, the high-concentration-exchange solution outlet pipe of the high-temperature heat exchanger is connected to the first absorber liquid inlet pipe, and the low-concentration-exchange solution outlet pipe of the low-temperature heat exchanger is connected to the second absorber liquid inlet pipe.
Preferably, the low pressure generator, the first condenser and the second condenser are arranged in the same low-heat-emission condenser cylinder, and a low-heat-emission condenser separation plate is arranged between the first condenser and the low pressure generator.
Preferably, the first condenser is provided separately in one cartridge.
When the unit is in refrigeration operation, the first condenser does not work, other components are in refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption refrigerator, wherein the solution circulation flow of the direct-fired high-pressure generator and the solution circulation flow of the low-pressure generator are in parallel connection, and the cooling water flow of the absorber and the second condenser is in series connection. When the unit supplies heat, the second solution pump, the low-temperature heat exchanger, the low-pressure generator and the second condenser do not work, other components perform heating operation according to the working principle of the direct-fired single-effect lithium bromide absorption heat pump unit, waste heat and water heat in the heat exchange tubes of the inlet evaporator and the outlet evaporator are recycled, and hot water in the heat exchange tubes of the inlet absorber, the outlet absorber and the first condenser are heated and heated in sequence, so that heat is supplied to the outside.
The beneficial effects of the invention are as follows:
The unit is provided with the first condenser and the second condenser, the first condenser water inlet pipe of the first condenser is provided with the first valve, and the second condenser water inlet pipe of the second condenser is provided with the second valve, so that the unit can perform refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption type water chilling unit and can perform heat supply operation according to the working principle of the direct-fired single-effect lithium bromide absorption type heat pump unit, the unit can be used for two purposes, refrigeration and heat supply equipment is provided for places with application conditions, the equipment investment cost is reduced, and the equipment occupied space is saved.
Drawings
Fig. 1 is a schematic structural diagram of a conventional direct-fired double-effect lithium bromide absorption chiller.
Fig. 2 is a schematic structural diagram of a direct-fired lithium bromide absorption cold water and heat pump unit according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a direct-fired lithium bromide absorption cold water and heat pump unit according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a direct-fired lithium bromide absorption cold water and heat pump unit according to a third embodiment of the present invention.
Wherein:
Absorber 1, refrigerant pump 2, evaporator 3, first solution pump 4, second solution pump 5, first refrigerant water U-shaped pipe 6, first solution pump outlet pipe 7, second solution pump outlet pipe 8, low-concentration solution outlet pipe 9, low-emission liquid outlet pipe 10, low-temperature heat exchanger 11, high-concentration solution outlet pipe 12, high-temperature heat exchanger 13, absorber liquid inlet pipe 14, high-emission liquid outlet pipe 15, burner 16, direct-fired high-pressure generator 17, high-emission liquid inlet pipe 18, high-emission vapor outlet pipe 19, low-emission liquid inlet pipe 20, first condenser water inlet pipe 21, first valve 22, first condenser refrigerant water outlet pipe 23 low-emissivity coolant water outlet pipe 24, first condenser 25, first condenser steam inlet pipe 26, low-emissivity condenser divider plate 27, low-emissivity condenser cylinder 28, low-pressure generator 29, low-emissivity steam inlet pipe 30, second condenser 31, first condenser outlet pipe 32, second condenser outlet pipe 33, condenser outlet manifold 34, second valve 35, second condenser inlet pipe 36, absorber outlet pipe 37, second coolant water U-shaped pipe 38, evaporator outlet pipe 39, evaporator inlet pipe 40, absorber inlet pipe 41, absorber first inlet pipe 42, absorber second inlet pipe 43, condenser 44, condenser outlet pipe 45.
Detailed Description
First embodiment referring to fig. 2, the present invention relates to a direct-fired lithium bromide absorption type cold water and heat pump unit comprising an evaporator 3, an absorber 1, a direct-fired high pressure generator 17, a low pressure generator 29, a condenser, a high temperature heat exchanger 13, a low temperature heat exchanger 11, a solution pump, a refrigerant pump 2, a control system (not shown), and pipes and valves connecting the respective components. Wherein the condenser comprises a first condenser 25 and a second condenser 31, the solution pump comprises a first solution pump 4 and a second solution pump 5, the dilute solution in the absorber 1 is pumped out by the first solution pump 4 and then enters the high-temperature heat exchanger 13 through a first solution pump outlet pipe 7, the dilute solution in the absorber 1 is pumped out by the second solution pump 5 and then enters the low-temperature heat exchanger 11 through a second solution pump outlet pipe 8, a high-emission liquid pipe 15 of the direct-fired high-pressure generator 17 is connected to a concentrated solution inlet of the high-temperature heat exchanger 13, a high-emission liquid pipe 18 of the direct-fired high-pressure generator 17 is connected to a dilute solution outlet of the high-temperature heat exchanger 13, a low-emission liquid pipe 10 of the low-pressure generator 29 is connected to a concentrated solution outlet of the low-temperature heat exchanger 11, the low-pressure generator 29, the first condenser 25 and the second condenser 31 are arranged in the same low-emission condenser cylinder 28, and a low-emission condenser partition plate 27 is arranged between the first condenser 25 and the low-pressure generator 29. The absorber water outlet pipe 37 is connected with the first condenser water inlet pipe 21 and the second condenser water inlet pipe 36 at the same time, the first condenser water inlet pipe 21 is provided with a first valve 22, and the second condenser water inlet pipe 36 is provided with a second valve 35; the high-emission steam outlet pipe 19 is connected with the low-emission steam inlet pipe 30 and the first condenser steam inlet pipe 26 at the same time; the first condenser coolant outlet pipe 23 and the low-emission coolant outlet pipe 24 are connected to the first coolant U-shaped pipe 6 at the same time, and the coolant of the second condenser enters the evaporator 3 through the second coolant U-shaped pipe 38; the concentrated solution outlet pipe of the high-temperature heat exchanger 13, the concentrated solution outlet pipe 12 of the high-temperature heat exchanger and the concentrated solution outlet pipe of the low-temperature heat exchanger 11, the low-temperature concentrated solution outlet pipe 9 are connected to the absorber liquid inlet pipe 14 at the same time; the first condenser outlet tube 32 of the first condenser 25 and the second condenser outlet tube 33 of the second condenser 31 merge into a condenser outlet manifold 34.
When the unit is in refrigeration operation, the first valve 22 is closed, the second valve 35 is opened, the first condenser 25 does not work, cold water enters and exits the unit through the evaporator water inlet pipe 40 and the evaporator water outlet pipe 39, and cooling water enters and exits the unit through the absorber water inlet pipe 41 and the condenser water outlet manifold 34, and the unit is in refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption type water chilling unit. The solution circulation flow of the direct-fired high-pressure generator 17 and the low-pressure generator 29 is a parallel flow, and the cooling water flow of the absorber 1 and the second condenser 31 is a series flow.
When the unit is in heat supply operation, the first valve 22 is opened, the second valve 35 is closed, the second solution pump 5, the low-temperature heat exchanger 11, the low-pressure generator 29 and the second condenser 31 are not in operation, waste heat water enters and exits the unit through the evaporator water inlet pipe 40 and the evaporator water outlet pipe 39, hot water enters and exits the unit through the absorber water inlet pipe 41 and the condenser water outlet manifold 34, the unit carries out heating operation according to the working principle of the direct-fired single-effect lithium bromide absorption heat pump unit, the recycling of waste heat in the heat exchange pipes of the evaporator 3 is realized, and the hot water sequentially entering and exiting the heat exchange pipes of the absorber 1 and the first condenser 25 is heated, and the heat is externally supplied.
Second embodiment referring to fig. 3, the absorber liquid inlet pipe 14 is divided into an absorber first liquid inlet pipe 42 and an absorber second liquid inlet pipe 43, the high-concentration solution outlet pipe 12 is connected to the absorber first liquid inlet pipe 42, and the low-concentration solution outlet pipe 9 is connected to the absorber second liquid inlet pipe 43, so that the concentrated solution outlet pipes of the high-temperature heat exchanger 13 and the low-temperature heat exchanger 11 are connected to the absorber 1 independently. The remaining structure is the same as that of the first embodiment.
Third embodiment referring to fig. 4, a first condenser 25 is provided separately in one condenser cylinder, and the rest of the structure is the same as that of the first embodiment.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a direct combustion formula lithium bromide absorption formula cold water, heat pump set, includes evaporimeter (3), absorber (1), direct combustion formula high-pressure generator (17), low pressure generator (29), condenser, high temperature heat exchanger (13), low temperature heat exchanger (11), solution pump and coolant pump (2), and the condenser includes first condenser (25) and second condenser (31), and the solution pump includes first solution pump (4) and second solution pump (5), its characterized in that: the high-emission steam outlet pipe (19) of the direct-fired high-pressure generator (17) is connected with the low-emission steam inlet pipe (30) of the low-pressure generator (29) and the first condenser steam inlet pipe (26) of the first condenser (25) at the same time; an absorber water outlet pipe (37) of the absorber (1) is connected with a first condenser water inlet pipe (21) of the first condenser (25) and a second condenser water inlet pipe (36) of the second condenser (31) at the same time, and a first valve (22) is arranged on the first condenser water inlet pipe (21);
a second valve (35) is arranged on the second condenser water inlet pipe (36);
when the unit is in refrigeration operation, the first condenser does not work, other components are in refrigeration operation according to the working principle of the direct-fired double-effect lithium bromide absorption refrigerator, wherein the solution circulation flow of the direct-fired high-pressure generator and the solution circulation flow of the low-pressure generator are in parallel connection, and the cooling water flow of the absorber and the second condenser is in series connection;
When the unit supplies heat and runs, the second solution pump, the low-temperature heat exchanger, the low-pressure generator and the second condenser do not work, other components perform heating and running according to the working principle of the direct-fired single-effect lithium bromide absorption heat pump unit, waste heat and water heat in the heat exchange pipes of the inlet evaporator and the outlet evaporator are recycled, and hot water in the heat exchange pipes of the inlet absorber, the outlet absorber and the first condenser are heated and heated in sequence to supply heat to the outside;
High-concentration solution outlet pipe (12) of high-temperature heat exchanger (13) and low-temperature heat exchanger (11) the concentrated solution outlet pipe (9) is combined to an absorber liquid inlet pipe (14) of the absorber (1);
The dilute solution in the absorber (1) is pumped out by the first solution pump (4) and then enters the high-temperature heat exchanger (13) through the first solution pump outlet pipe (7), the dilute solution in the absorber (1) is pumped out by the second solution pump (5) and then enters the low-temperature heat exchanger (11) through the second solution pump outlet pipe (8), the high-emission liquid outlet pipe (15) of the direct-fired high-pressure generator (17) is connected to the concentrated solution inlet of the high-temperature heat exchanger (13), the high-emission liquid inlet pipe (18) of the direct-fired high-pressure generator (17) is connected to the dilute solution outlet of the high-temperature heat exchanger (13), the low-emission liquid pipe (10) of the low-pressure generator (29) is connected to the concentrated solution inlet of the low-temperature heat exchanger (11), and the low-emission liquid inlet pipe (20) of the low-pressure generator (29) is connected to the dilute solution outlet of the low-temperature heat exchanger (11).
2. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 1, wherein: the absorber liquid inlet pipe (14) of the absorber (1) is divided into an absorber first liquid inlet pipe (42) and an absorber second liquid inlet pipe (43), the high-concentration solution outlet pipe (12) of the high-temperature heat exchanger (13) is connected to the first liquid inlet pipe (42) of the absorber, and the low-concentration solution outlet pipe (9) of the low-temperature heat exchanger (11) is connected to the second liquid inlet pipe (43) of the absorber.
3. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 1, wherein: the low-pressure generator (29), the first condenser (25) and the second condenser (31) are arranged in the same low-emission condenser cylinder (28), and a low-emission condenser separation plate (27) is arranged between the first condenser (25) and the low-pressure generator (29).
4. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 1, wherein: the first condenser (25) is provided separately in one cylinder.
5. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 1, wherein: the low-pressure generator (29), the first condenser (25) and the second condenser (31) are arranged in the same low-emission condenser cylinder (28), and a low-emission condenser separation plate (27) is arranged between the first condenser (25) and the low-pressure generator (29).
6. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 1, wherein: the first condenser (25) is provided separately in one cylinder.
7. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 2, wherein: the low-pressure generator (29), the first condenser (25) and the second condenser (31) are arranged in the same low-emission condenser cylinder (28), and a low-emission condenser separation plate (27) is arranged between the first condenser (25) and the low-pressure generator (29).
8. The direct-fired lithium bromide absorption cold water and heat pump unit according to claim 2, wherein: the first condenser (25) is provided separately in one cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614192.8A CN110307665B (en) | 2019-07-09 | 2019-07-09 | Direct-fired lithium bromide absorption type cold water and heat pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614192.8A CN110307665B (en) | 2019-07-09 | 2019-07-09 | Direct-fired lithium bromide absorption type cold water and heat pump unit |
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| Publication Number | Publication Date |
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| CN110307665A CN110307665A (en) | 2019-10-08 |
| CN110307665B true CN110307665B (en) | 2024-06-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113432334B (en) * | 2021-07-22 | 2024-06-14 | 双良节能系统股份有限公司 | Flue gas hot water type lithium bromide absorption type cold water heat pump unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102914079A (en) * | 2012-10-27 | 2013-02-06 | 双良节能系统股份有限公司 | Two-stage type hot water direct-fired single-double effect composite lithium bromide absorption refrigeration unit |
| CN211204489U (en) * | 2019-07-09 | 2020-08-07 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold water and heat pump unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297797Y (en) * | 2008-10-15 | 2009-08-26 | 江苏双良空调设备股份有限公司 | Novel first-kind lithium bromide absorption heat pump unit with double-effect refrigeration function |
| CN201352030Y (en) * | 2009-01-08 | 2009-11-25 | 江苏双良空调设备股份有限公司 | Hot water direct-fired lithium bromide absorption type cold/cold-hot water machine set |
| CN203177527U (en) * | 2013-04-07 | 2013-09-04 | 双良节能系统股份有限公司 | Single-effect cascaded lithium bromide absorption water cooling unit |
| CN105423592B (en) * | 2015-12-23 | 2018-02-02 | 双良节能系统股份有限公司 | Double-working-condition direct combustion dual effect type lithium bromide absorption type heat pump unit |
| CN106440475B (en) * | 2016-11-19 | 2022-04-12 | 双良节能系统股份有限公司 | Two-stage cascade single-effect lithium bromide absorption type refrigeration heat pump unit |
| CN108518887A (en) * | 2018-04-25 | 2018-09-11 | 双良节能系统股份有限公司 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
| CN108444147B (en) * | 2018-04-25 | 2024-04-12 | 双良节能系统股份有限公司 | Hot water reverse series direct combustion double-effect lithium bromide absorption heat pump unit |
| CN108518888A (en) * | 2018-05-02 | 2018-09-11 | 双良节能系统股份有限公司 | The solution parallel connection type lithium bromide absorption type refrigeration heat pump unit of variable effect |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914079A (en) * | 2012-10-27 | 2013-02-06 | 双良节能系统股份有限公司 | Two-stage type hot water direct-fired single-double effect composite lithium bromide absorption refrigeration unit |
| CN211204489U (en) * | 2019-07-09 | 2020-08-07 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold water and heat pump unit |
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| CN110307665A (en) | 2019-10-08 |
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