CN1166906C - Absorption type refrigeration equipment by using afterheat of internal-combustion engine - Google Patents
Absorption type refrigeration equipment by using afterheat of internal-combustion engine Download PDFInfo
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- CN1166906C CN1166906C CNB021512809A CN02151280A CN1166906C CN 1166906 C CN1166906 C CN 1166906C CN B021512809 A CNB021512809 A CN B021512809A CN 02151280 A CN02151280 A CN 02151280A CN 1166906 C CN1166906 C CN 1166906C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3201—Cooling devices using absorption or adsorption
- B60H1/32011—Cooling devices using absorption or adsorption using absorption, e.g. using Li-Br and water
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Abstract
The present invention relates to an absorption-type refrigeration device using waste heat of an internal combustion engine, particularly to a waste-heat absorption-type refrigeration device with double generators, which belongs to the technical field of air conditioner refrigeration, heating, etc. The refrigeration device uses water as a refrigeration agent, a lithium bromide solution is used as an absorption agent, or ammonia is used as the refrigeration agent, and the ammonia solution is used as the absorption agent. The present invention mainly comprises an absorber, a solution heat exchanger, a condenser, an evaporator, a solution pump and two parallel generators, wherein one generator is a cooling liquid generator driven by using cooling liquid of the internal combustion engine as a heating source, and the other generator is a tail gas generator driven by using waste heat of tail gas of the internal combustion engine as a heating source.
Description
Technical field
What the present invention relates to is the absorption type refrigerating unit that utilizes afterheat of IC engine, and particularly a kind of dual occurrence type waste heat absorption type refrigerating unit belongs to technical fields such as air conditioner refrigerating heating.
Background technology
The practical efficient of internal combustion engine is generally about 35%～40%, accounting for launched machine recirculated cooling water of the energy of heat output of fuel more than 1/2 and tail gas takes away, wherein, heat that cooling water is taken away accounts for about 25%～35% of heat output of fuel, how to reclaim and utilize this part waste heat to come service for life for people, thereby improving the utilization rate of automotive fuel, is the problem that countries in the world are all being studied at present.In prior art, number of patent application is 99116689 " lithium bromide absorption refrigerating equipment for car ", provided and utilized motor high temperature coolant liquid as thermal source, with nontoxic water is cold-producing medium, with the lithium bromide water solution is the refrigerating plant that absorbent freezes, to replace the used for automobile air conditioning freon compression refrigerating machine that atmosphere is had pollution, yet, this scheme needs cooling water system, the cooling water system of automobile engine self also must exist, to guarantee the cooling of engine,, very complicated thereby the structure of this scheme just seems because the space of automobile is very limited.So this UTILIZATION OF VESIDUAL HEAT IN scheme at automobile engine is infeasible.
Summary of the invention
In order to overcome the deficiencies in the prior art part, the absorption type refrigerating unit that utilizes afterheat of IC engine that the present invention proposes, design feature and operation principle thereof according to generator in the design feature of radiator in the cooling water of internal combustion engine system and operation principle and the absorption type refrigerating unit system, a kind of dual occurrence type waste heat absorption type refrigerating unit has been proposed, mainly comprise absorber, solution heat exchanger, evaporimeter, solution pump, the generator of two parallel connections, with water is cold-producing medium, be absorbent with the lithium-bromide solution or be cold-producing medium with ammonia, with the ammonia spirit is absorbent, and wherein: a generator is the cooling fluid generator that is driven as the heating thermal source by cooling liquid of IC engine; Another generator is the tail gas generator that is driven as the heating thermal source by using waste heat from tail gas of internal combustion engine.
For lithium bromide water absorption refrigerating plant, from the bromize lithium dilute solution of solution heat exchanger respectively by entering cooling fluid generator and tail gas generator behind stop valve and the pressure regulator valve, wherein stop valve carries out assignment of traffic, the pressure regulation pressure regulating valve, lithium-bromide solution in the cooling fluid generator is heated by the cooling fluid in the internal-combustion engine cooling system, lithium bromide in the tail gas generator is heated by the tail gas of internal combustion engine, the refrigerant vapour that produces in cooling fluid generator and the tail gas generator flows out by stop valve respectively, enter condenser, dense lithium-bromide solution in cooling fluid generator and the tail gas generator flows out by stop valve respectively, enters solution heat exchanger.
For the ammonia absorption type refrigerating plant, from the ammonia spirit of rectifying column respectively by entering cooling fluid generator and tail gas generator behind stop valve and the pressure regulator valve, wherein stop valve carries out assignment of traffic, the pressure regulation pressure regulating valve, lithium-bromide solution in the cooling fluid generator is heated by the cooling fluid in the internal-combustion engine cooling system, lithium bromide in the tail gas generator is heated by the tail gas of internal combustion engine, dilute ammonia solution in cooling fluid generator and the tail gas generator flows out by stop valve respectively, enters solution heat exchanger.
From above analysis as can be known: the absorption type refrigerating unit that utilizes afterheat of IC engine, adopt lithium-bromide solution or ammonia spirit in the cooling fluid heated cooling fluid generator in the cooling water of internal combustion engine system, adopt using waste heat from tail gas of internal combustion engine to add the lithium-bromide solution or the ammonia spirit of hot exhaust gas generator, the waste heat that waste heat that the cooling water of internal combustion engine system takes away and tail gas are taken away all obtains utilizing.
The above-mentioned afterheat of IC engine refrigerating plant that the present invention proposes for example is fitted to generating equipment as air-conditioning or refrigerating plant extensive use; Perhaps be fitted to motor vehicles, such as automobile, refrigerator car, truck, tank, panzer, railway traction locomotive, railcar; Perhaps be fitted to power vessels, such as steamer, oil tanker, fishing vessel, naval vessels, submarine; Perhaps be fitted to plant equipment, such as excavator, bull-dozer, paving machine, pipelayer etc.
Beneficial effect of the present invention is, compare with existing afterheat of IC engine use device, directly the cooling fluid in the cooling water of internal combustion engine system is charged into the cooling fluid generator with heating flow through wherein lithium-bromide solution or ammonia spirit, the cooling of internal combustion engine is fully guaranteed, so the radiator in the existing cooling water of internal combustion engine system is out of use; Adopted using waste heat from tail gas of internal combustion engine to add the lithium-bromide solution or the ammonia spirit of hot exhaust gas generator, the waste heat that has not only utilized the cooling water of internal combustion engine system to take away, and the waste heat that has utilized exhaust gases of internal combustion engines to take away.Whole apparatus structure is simple, compact.
Description of drawings
Fig. 1 is the lithium bromide water absorption refrigerating plant schematic diagram that utilizes afterheat of IC engine;
Fig. 2 is the ammonia absorption type refrigerating plant schematic diagram that utilizes afterheat of IC engine.
Among the figure: 1, solution pump, 2, solution heat exchanger, 3, stop valve, 4, cooling fluid generator, 5, pressure regulator valve, 6, stop valve, 7, stop valve, 8, the tail gas generator, 9, stop valve, 10, pressure regulator valve, 11, stop valve, 12, stop valve, 13, condenser, 14, stop valve, 15, choke valve, 16, stop valve, 17, evaporimeter, 18, absorber; 19, rectifying column, 20, reflux condenser, 21, cooling water outlet pipe, 22, subcooler, 23, the cooling water inlet pipe.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described:
Embodiment 1:
As shown in Figure 1, a kind of lithium bromide water absorption refrigerating plant that utilizes afterheat of IC engine, with water is cold-producing medium, with the lithium bromide water solution is absorbent, mainly comprise absorber 18, solution heat exchanger 2, condenser 13, evaporimeter 17, solution pump 1, cooling fluid generator 4, tail gas generator 8 etc., wherein cooling fluid generator 4 is to be driven as the heating thermal source by cooling liquid of IC engine; Tail gas generator 8 is to be driven as the heating thermal source by using waste heat from tail gas of internal combustion engine.The outlet of absorber 18 is connected with the import of solution pump 1 by taking over.The outlet of solution pump 1 is connected by the import of adapter with the tube side of solution heat exchanger 2.The tube side outlet of solution heat exchanger 2 links to each other with an end of stop valve 6 and stop valve 9 respectively by taking over, the other end of stop valve 6 is connected with an end of pressure regulator valve 5 by taking over, and the other end of pressure regulator valve 5 links to each other by taking over the upper left-hand adapter of cooling fluid generator 4.The outlet of cooling fluid generator 4 upper right is connected with an end of stop valve 7 by taking over.The other end of stop valve 9 is connected with an end of pressure regulator valve 10 by taking over, and the other end of pressure regulator valve 10 is connected with tail gas generator 8 upper left-hand inlet tubes by taking over.Tail gas generator 8 upper right outlets are connected with an end of stop valve 11 by taking over.The other end of stop valve 11 links to each other with the other end of stop valve 7 by taking over.The lower part outlet pipe of cooling fluid generator 4 is connected with an end of stop valve 3 by taking over.Tail gas generator 8 lower part outlets are connected with an end of stop valve 16 by taking over, and the other end of stop valve 16 is connected with the other end of stop valve 3 by taking over, and link to each other with the shell side import of solution heat exchanger 2 by taking over then.The shell side outlet of solution heat exchanger 2 links to each other with the import of absorber 18 by taking over.The tube connector of stop valve 7 and stop valve 11 is connected with an end of stop valve 12 and stop valve 14 respectively by taking over, the other end of stop valve 12 is connected with the import of condenser 13 by taking over, and the other end of stop valve 14 is connected in the adapter between evaporimeter 17 and the choke valve 15.The outlet of condenser 13 is connected with the import of choke valve 15 by taking over.The outlet of choke valve 15 is connected with the import of evaporimeter 17 by taking over.The outlet of evaporimeter 17 is connected in the adapter between solution heat exchanger 2 and the absorber 18 by adapter.
During this refrigerating plant work, weak solution from absorber 18 outflows, carry out assignment of traffic through the boost solution heat exchanger 2 of flowing through of solution pump 1 by stop valve 6 and stop valve 9, regulate pressure by pressure regulator valve 5 and pressure regulator valve 10 respectively then, enter cooling fluid generator 4 and tail gas generator 8 at last respectively, lithium-bromide solution in cooling fluid generator 4 is heated by the cooling fluid in the internal-combustion engine cooling system, lithium-bromide solution in tail gas generator 8 is by the indoor tail gas heating of combustion in IC engine, the refrigerant vapour that produces in cooling fluid generator 4 and the tail gas generator 8 flows out by stop valve 7 and stop valve 11 respectively, and the dense lithium-bromide solution in cooling fluid generator 4 and the tail gas generator 8 flows out by stop valve 3 and stop valve 16 respectively.Weak solution is heated by the concentrated solution from cooling fluid generator 4 and tail gas generator 8 in solution heat exchanger 2, in cooling fluid generator 4 and tail gas generator 8, heated by the using waste heat from tail gas of cooling fluid in the automobile engine cooling water system and automobile engine respectively again, be condensed into concentrated solution.Concentrated solution from cooling fluid generator 4 and 8 outflows of tail gas generator enters absorber 18 through solution heat exchanger 2.Concentrated solution is the always weak solution heat release of self-absorption device 18 in solution heat exchanger 2, absorbs the refrigerant vapour or the water as refrigerant of flash-pot 17 again in absorber 18, is diluted to weak solution, simultaneously, emits the absorption heat of solution to the cooling air.Like this, finished the solution loop of the absorption circulation of mono-potency lithium bromide.The refrigerant vapour that produces in cooling fluid generator 4 and tail gas generator 8 flows into condenser 13, to the heat release of cooling air, is condensed into water as refrigerant therein.Water as refrigerant from condenser 13 flows out enters evaporimeter 17 after choke valve 15 throttlings.Water as refrigerant evaporates in evaporimeter 17, absorbs the heat in the car compartment simultaneously, makes it cooling and the generation refrigeration.The refrigerant vapour that produces in evaporimeter 17 enters absorber 18, has finished the refrigerant loop of mono-potency lithium bromide Absorption Cooling System, has reached the requirement of automobile refrigerating.When the refrigerant vapour that from cooling fluid generator 4 and tail gas generator 8, produces, the condenser 13 of not flowing through, but enter evaporimeter 17 behind the stop valve 14 of flowing through, be cooled in 17 li heat releases of evaporimeter, discharge heat simultaneously with the air of heating in the car compartment, make it to heat up and produce and add thermal effect.The water as refrigerant that produces in evaporimeter 17 enters absorber 18, has finished the refrigerant loop of the absorption heating circulation of mono-potency lithium bromide, has reached the requirement of heating automobile.Regulate stop valve 12 and stop valve 14 size of aperture separately, can realize that automobile is in summer refrigeration, heating in winter and the neither refrigeration requirement of not heating again.
The effect of present embodiment is, utilize the lithium bromide water absorption refrigerating plant system of afterheat of IC engine not only to realize the purpose of automobile air-conditioning refrigeration, heating, and cooling fluid generator 4 can replace the radiator in the existing automobile engine cooling water system fully, make whole simplified, compactness.
Embodiment 2:
As shown in Figure 2, a kind of ammonia absorption type refrigerating plant that utilizes afterheat of IC engine, with ammonia is cold-producing medium, with the ammonia spirit is absorbent, mainly comprise absorber 18, solution heat exchanger 2, condenser 13, evaporimeter 17, solution pump 1, rectifying column 19, reflux condenser 20, cooling fluid generator 4, tail gas generator 8 etc., wherein cooling fluid generator 4 is to be driven as the heating thermal source by cooling liquid of IC engine; Tail gas generator 8 is to be driven as the heating thermal source by using waste heat from tail gas of internal combustion engine.The shell side outlet of absorber 18 links to each other with the import of solution pump 1 by taking over.The outlet of solution pump 1 is connected by the import of adapter with the tube side of solution heat exchanger 2.The tube side outlet of solution heat exchanger 2 links to each other with the left side inlet tube of rectifying column 19 by taking over.Rectifying column 19 lower part outlet pipes are connected with an end of stop valve 6 and stop valve 9 respectively, and the other end of stop valve 6 is connected with an end of pressure regulator valve 5 by taking over.The other end of pressure regulator valve 5 is connected with the upper orifice of cooling fluid generator 4 by taking over.The other end of stop valve 9 is connected with an end of pressure regulator valve 10 by taking over.The other end of pressure regulator valve 10 is connected with tail gas generator 8 upper orifice by taking over.The lower part outlet pipe of cooling fluid generator 4 is connected with an end of stop valve 3 by taking over.Tail gas generator 8 lower part outlets are connected with an end of stop valve 16 by taking over, and the other end of stop valve 16 is connected with the other end of stop valve 3 by taking over, and link to each other with the shell side import of solution heat exchanger 2 by taking over then.The shell side outlet of solution heat exchanger 2 links to each other with the left side import of absorber 18 by taking over.Rectifying column 19 upper left-hand outlets link to each other with the lower left side inlet tube of reflux condenser 20 by taking over.The lower right side outlet pipe of reflux condenser 20 is connected with the inlet tube of rectifying column 19 upper right by taking over.The top outlet of reflux condenser 20 is connected with the shell side import of condenser 13 by taking over.The shell side outlet of condenser 13 is connected with the import of choke valve 15 by taking over.The outlet of choke valve 15 is connected with the tube side import of subcooler 22 by taking over.The tube side outlet of subcooler 22 is connected with the import of evaporimeter 17 by taking over.The outlet of evaporimeter 17 is connected with the shell side import of subcooler 22 by taking over.The shell side outlet of subcooler 22 is connected on the shell side inlet tube of absorber 18 by adapter.Cooling water inlet pipe 23 links to each other with the tube side import of absorber 18.The tube side outlet of absorber 18 links to each other with the tube side import of condenser 13.The tube side outlet of condenser 13 links to each other with cooling water outlet pipe 21.
During this device work, ammoniacal liquor concentrated solution from absorber 18 outflows, boost to flow through through solution pump 1 and enter rectifying column 19 after solution heat exchanger 2 absorbs the heat of the dilute ammonia solution that refluxes from cooling fluid generator 4 and tail gas generator 8, and carry out assignment of traffic by stop valve 6 and stop valve 9 respectively, regulate pressure by pressure regulator valve 5 and pressure regulator valve 10 respectively then, enter cooling fluid generator 4 and tail gas generator 8 at last respectively, ammonia spirit in cooling fluid generator 4 by internal-combustion engine cooling system in cooling fluid heating, ammonia spirit in tail gas generator 8 is by the heating of the tail gas of internal combustion engine, and the dilute ammonia solution in cooling fluid generator 4 and the tail gas generator 8 flows out by stop valve 3 and stop valve 16 respectively.In cooling fluid generator 4, absorb heat radiation from cooling liquid of IC engine, in tail gas generator 8, absorb using waste heat from tail gas from internal combustion engine, produce ammonia steam, ammonia steam rises and enters the top and the reflux condenser 20 of rectifying column 19, carries out heat exchange with the refluxer that descends.Dilute ammonia solution from cooling fluid generator 4 and 8 outflows of tail gas generator enters absorber 18 through solution heat exchanger 2.Dilute ammonia solution is the always concentrated ammonia solution heat release of self-absorption device 18 in solution heat exchanger 2, absorbs the ammonia steam from subcooler 22 again in absorber 18, simultaneously, emits the absorption heat of solution to cooling water.Like this, finished the solution loop of ammonia absorption type circulation.Ammonia steam from reflux condenser 20 comes out flows into condenser 13, to the cooling water heat release, is condensed into ammoniacal liquor therein.Ammoniacal liquor from condenser 13 flows out enters subcooler 22 after choke valve 15 throttlings, further come the ammonia steam cooling of flash-pot 17 in subcooler 22.The ammoniacal liquor that flows out from subcooler 22 enters evaporimeter 17, and ammoniacal liquor evaporates in evaporimeter 17, produces the ammonia steam, and the ammonia steam flow enters absorber 18 behind the ammoniacal liquor of subcooler 22 coolings from choke valve 15, finished the refrigerant loop of this device.
The effect of present embodiment is to utilize the ammonia absorption type refrigerating plant of afterheat of IC engine, for people provide refrigeration, heating and life hot water; This device can be used as first kind absorption heat pump again, is used for heating.
The present invention is widely used in generating equipment, motor vehicles, power vessels, plant equipment etc.
Claims (2)
1, a kind of absorption type refrigerating unit that utilizes afterheat of IC engine, mainly comprise absorber (18), solution heat exchanger (2), condenser (13), evaporimeter (17), solution pump (1), two generators, eight stop valves (3,6,7,9,11,12,14,16), two pressure regulator valves (5,10), choke valve (15), with water is that cold-producing medium is absorbent with the lithium-bromide solution, it is characterized in that: a generator is the cooling fluid generator (4) that is driven as the heating thermal source by cooling liquid of IC engine, another generator is the tail gas generator (8) that is driven as the heating thermal source by using waste heat from tail gas of internal combustion engine, cooling fluid generator (4) is in parallel with tail gas generator (8), absorber (18) outlet is connected with solution pump (1) import, solution pump (1) outlet is connected with solution heat exchanger (2) tube side import, solution heat exchanger (2) tube side outlet is leaded up to stop valve (6) and is linked to each other with cooling fluid generator (4) upper left-hand import with pressure regulator valve (5), another road links to each other with tail gas generator (8) upper left-hand import with pressure regulator valve (10) by stop valve (9), cooling fluid generator (4) lower part outlet is connected with solution heat exchanger (2) shell side import by stop valve (3), tail gas generator (8) lower part outlet also is connected with solution heat exchanger (2) shell side import by stop valve (16), the outlet of solution heat exchanger (2) shell side links to each other with absorber (18) import, import is connected the outlet of cooling fluid generator (4) upper right with evaporimeter (17) with condenser (13) import respectively by stop valve (7), also import is connected the outlet of tail gas generator (8) upper right with evaporimeter (17) with condenser (13) import respectively by stop valve (11), condenser (13) outlet is connected with evaporimeter (17) import by choke valve (15), evaporimeter (17) exports on the connecting line that is connected between outlet of solution heat exchanger (2) shell side and absorber (18) import, on the connecting line between stop valve (11) and evaporimeter (17) import, stop valve (14) is housed, on stop valve (14) and condenser (13) inlet ductwork, stop valve (12) is housed.
2, a kind of absorption type refrigerating unit that utilizes afterheat of IC engine, mainly comprise absorber (18), solution heat exchanger (2), condenser (13), evaporimeter (17), solution pump (1), rectifying column (19), reflux condenser (20), two generators, four stop valves (3,6,9,16), two pressure regulator valves (5,10), choke valve (15), subcooler (22), be that cold-producing medium is absorbent with the ammonia spirit, it is characterized in that with ammonia:
A generator is the cooling fluid generator (4) that is driven as the heating thermal source by cooling liquid of IC engine, another generator is the tail gas generator (8) that is driven as the heating thermal source by using waste heat from tail gas of internal combustion engine, cooling fluid generator (4) is in parallel with tail gas generator (8), the outlet of absorber (18) shell side links to each other with solution pump (1) import, solution pump (1) outlet is connected with solution heat exchanger (2) tube side import, the outlet of solution heat exchanger (2) tube side links to each other with rectifying column (19) left side import, rectifying column (19) lower part outlet is leaded up to stop valve (6) and is connected with the upper inlet of pressure regulator valve (5) with cooling fluid generator (4), another road is connected with the upper inlet of pressure regulator valve (10) with tail gas generator (8) by stop valve (9), cooling fluid generator (4) lower part outlet is connected with solution heat exchanger (2) shell side import by stop valve (3), tail gas generator (8) lower part outlet also is connected with solution heat exchanger (2) shell side import by stop valve (16), the outlet of solution heat exchanger (2) shell side links to each other with the shell side import of absorber (18) left side, the outlet of rectifying column (19) upper left-hand links to each other with reflux condenser (20) lower left side import, reflux condenser (20) lower right side outlet is connected with rectifying column (19) upper right import, the outlet of reflux condenser (20) top is connected with condenser (13) shell side import, the outlet of condenser (13) shell side is connected with subcooler (22) tube side import by choke valve (15), the outlet of subcooler (22) tube side is connected with evaporimeter (17) import, evaporimeter (17) outlet is connected with subcooler (22) shell side import, the outlet of subcooler (22) shell side is connected with absorber (18) top shell side import, cooling water inlet pipe (23) links to each other with absorber (18) tube side import, the outlet of absorber (18) tube side links to each other with condenser (13) tube side import, and the outlet of condenser (13) tube side links to each other with cooling water outlet pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021512809A CN1166906C (en) | 2002-12-12 | 2002-12-12 | Absorption type refrigeration equipment by using afterheat of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021512809A CN1166906C (en) | 2002-12-12 | 2002-12-12 | Absorption type refrigeration equipment by using afterheat of internal-combustion engine |
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| CN1415922A CN1415922A (en) | 2003-05-07 |
| CN1166906C true CN1166906C (en) | 2004-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021512809A Expired - Fee Related CN1166906C (en) | 2002-12-12 | 2002-12-12 | Absorption type refrigeration equipment by using afterheat of internal-combustion engine |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303378C (en) * | 2005-09-08 | 2007-03-07 | 上海交通大学 | Combined circulating device capable of realizing absorption type cycle and organic matter Rankine cycle |
| CN1766462B (en) * | 2005-10-31 | 2010-05-05 | 庞启东 | Ammonia absorption type refrigerating apparatus utilizing waste heat of exhaust |
| CN101793446B (en) * | 2010-03-09 | 2011-08-31 | 浙江大学 | Lithium bromide heat-storage and cold-storage system |
| CN103123179B (en) * | 2013-01-31 | 2015-06-10 | 陕西东泰能源科技有限公司 | Multi-heat-source absorption refrigeration device |
| CN103909807A (en) * | 2014-03-04 | 2014-07-09 | 刘建平 | Energy-saving and environment-friendly device for driving lithium bromide to perform refrigeration and cooling through automobile engine waste heat |
| CN106288435A (en) * | 2015-06-05 | 2017-01-04 | 中国电力工程顾问集团有限公司 | A kind of solar energy thermal-power-generating unit |
| CN111376673A (en) * | 2018-12-28 | 2020-07-07 | 观致汽车有限公司 | Automobile thermal management system and control method thereof |
| CN110553420A (en) * | 2019-09-20 | 2019-12-10 | 安徽普泛能源技术有限公司 | Ammonia absorption type refrigerating system based on lithium bromide unit |
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2002
- 2002-12-12 CN CNB021512809A patent/CN1166906C/en not_active Expired - Fee Related
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