CN102997496B - Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat - Google Patents
Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat Download PDFInfo
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- CN102997496B CN102997496B CN201210552871.5A CN201210552871A CN102997496B CN 102997496 B CN102997496 B CN 102997496B CN 201210552871 A CN201210552871 A CN 201210552871A CN 102997496 B CN102997496 B CN 102997496B
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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
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention relates to a direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat, belonging to the technical field of air conditioning equipment. The cold-hot water unit comprises a direct-fired high pressure generator (1), a low pressure generator (2), a condenser (3), an evaporator (4), an absorber (5), a low temperature solution heat exchanger (6), a high temperature solution heat exchanger (7), a solution pump (21), a refrigerant pump (22), valves and the like. The cold-hot water unit is characterized in that a flue gas exhaust outlet pipe of the direct-fired high pressure generator is divided into two ways, wherein a refrigerating flue gas valve (20) is additionally arranged on one way, a heating flue gas valve (19) and a flue gas condensation heat exchanger (18) are additionally arranged on the other way, and finally the two ways of the flue gas exhaust pipe can converge or exhaust the flue gas independently; and a refrigerant pump outlet refrigerant water pipeline is divided into two ways, wherein one way is connected into the evaporator (4) via a refrigerating refrigerant water valve (15), and the other way is connected into the flue gas condensation heat exchanger (18) via a heating refrigerant water valve (14) and then is connected into a pipeline behind the refrigerating refrigerant water valve (15) to converge or is independently connected into the evaporator (4). The unit can fully recover the flue gas waste heat and improve the efficiency.
Description
Technical field
The present invention relates to a kind of direct-burning lithium bromide absorption cold-hot water assembing group.Belong to air conditioner technical field.
Background technology
At present direct-burning lithium bromide absorption cold-hot water assembing group as shown in Figure 1, is consisted of the pipeline of direct combustion high pressure generator 1, low pressure generator 2, condenser 3, evaporimeter 4, absorber 5, cryogenic fluid heat exchanger 6, high-temperature solution heat exchanger 7, solution by-passing valve 8, refrigerant vapour valve 9, solution pump 21, cryogenic fluid pump 22, valve, control system (not shown) and connecting components.When unit moves in heating operating mode, concentrated solution by-passing valve and refrigerant vapour valve are opened, cryogenic fluid pump and external system cooling water pump stop, the low-temperature water heating coming from air conditioner user enters in heat exchange pipe of evaporator, the heat of condensation of the water vapour being produced by heat exchange pipe external surface direct combustion high pressure generator heat dilute solution heats, temperature is sent to heating user after raising, the water as refrigerant that solution after direct combustion high pressure generator is concentrated enters in absorber and after condensing is mixed into weak solution, from solution pumping, toward direct combustion high pressure generator, is again circulated and heats.Also has at present a kind of direct-burning lithium bromide absorption cold-hot water assembing group as shown in Figure 2, such as Fig. 1 has increased hot-water heater 12, when heating operating mode is moved, refrigerant vapour valve cuts out, except direct combustion high pressure generator and hot-water heater, other all shuts down, and the refrigerant vapour being gone out by direct combustion high pressure generator directly heats the hot water in heat exchanger tube, refrigerant vapour condenses into water after emitting heat, then flows back to direct combustion high pressure generator.Direct-burning lithium bromide absorption cold-hot water assembing group is when heating operating mode, direct combustion high pressure generator exhaust gas temperature is 155 ℃ of left and right, in flue gas, contain part water vapour simultaneously, water vapour saturation temperature is 57 ℃ of left and right, the sensible heat of this part flue gas and the condensation latent heat of water vapour can account for 10% of fuel combustion caloric value, directly entering at present discharge cannot utilize, and causes the waste of a large amount of fume afterheats, produces the thermal pollution of discharge simultaneously.Because water vapour saturation temperature in heating operating mode hot water preparing temperature and flue gas is suitable, adopt common direct heat transfer technology to be difficult to reclaim this part waste heat, how when cooling condition, flue gas still can directly discharge, when heating operating mode, fully recycle obvious heat of smoke and condensation latent heat, improve the efficiency of direct-burning lithium bromide absorption cold-hot water assembing group under heating operating mode, the mixed economy and the social benefit that realize energy-saving and emission-reduction, become one of important topic of current research.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, when a kind of heating operating mode is provided, can make full use of the direct-burning lithium bromide absorption cold-hot water assembing group of smoke evacuation sensible heat and water vapour condensation latent heat.
The object of the present invention is achieved like this: a kind of direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering, comprise direct combustion high pressure generator, low pressure generator, condenser, evaporimeter, absorber, cryogenic fluid heat exchanger, high-temperature solution heat exchanger, solution pump and cryogenic fluid pump, valve, the pipeline of control system and connecting components etc., it is characterized in that: direct combustion high pressure generator smoke evacuation outlet is divided into two tunnels, refrigeration smoke valve is set up on one tunnel, heating smoke valve and flue gas condensing heat exchanger are set up in another road, last two road smoke exhaust pipes can converge or discharge separately, cryogenic fluid pump is exported to coolant pipeline and be divided into two tunnels, a road is through refrigeration cryogen water valve access evaporimeter, and the pipeline at cryogen water valve rear portion of access refrigeration again after heating cryogen water valve access flue gas condensing heat exchanger, another road converges or accesses separately evaporimeter.Cooling condition Shi Yi road water as refrigerant enters evaporimeter through refrigeration cryogen water valve, and the smoke evacuation of direct combustion high pressure generator is directly discharged through refrigeration smoke valve; During heating operating mode, the pipeline at another road water as refrigerant access refrigeration cryogen water valve rear portion after heating cryogen water valve enters the intensification of flue gas condensing heat exchanger converges or enters separately evaporimeter, and the smoke evacuation of direct combustion high pressure generator is discharged after heating smoke valve enters the cooling of flue gas condensing heat exchanger again; By outside water system valve, switch, while realizing cooling condition, cooling water flow is through absorber and condenser simultaneously, and during heating operating mode, flow through absorber and condenser of heating hot water heats up.
The direct-burning lithium bromide absorption cold-hot water assembing group of band smoke valve Mist heat recovering of the present invention, when externally the hot water line of water system and cold water pipeline share identical pipeline, entering cold (heat) the water water inlet pipe of evaporimeter and entering between the cooling water inlet pipe of absorber to have the first cross over pipe, on this first cross over pipe, hot water water intaking valve is set, going out the cooling water outlet pipe of condenser and going out between cold (heat) water outlet pipe of evaporimeter the second cross over pipe is set, and on this second cross over pipe, hot water effluent's valve is set, on the cooling water outlet pipe that goes out condenser after the second cross over pipe, cooling water outlet valve is set.
The direct-burning lithium bromide absorption cold-hot water assembing group of band smoke valve Mist heat recovering of the present invention, when externally the hot water line of water system and cold water pipeline do not share identical pipeline, after entering the cooling water inlet pipe valve of absorber, set up a road hot water inlet pipe, and hot water water intaking valve is set on this hot water inlet pipe; Going out on the cooling water outlet pipe of condenser, to set up a road hot water outlet pipe, and hot water effluent's valve is being set on this hot water outlet pipe, going out cooling water outlet valve is set on the cooling water outlet pipe of condenser.
The invention has the beneficial effects as follows:
The present invention is by setting up flue gas condensing heat exchanger and smoke valve and above-mentioned brand-new flow process in direct combustion high pressure generator smoke evacuation outlet, when refrigeration, the direct discharge of flue gas can reduce the resistance of discharging fume, after can making flue gas exhaust gas temperature reduce when heating, discharge again, if heating hot water is when 55 ℃ of left and right, can make flue gas exhaust gas temperature be reduced to below 30 ℃, recyclable a large amount of obvious heat of smoke heat and most water vapour condensation latent heat, do not increasing under the prerequisite of fuel consumption, making unit heating capacity and heating efficiency improve more than 10%.When identical heating load, can reduce fuel consumption and reach more than 10%, reduce operating cost, improve energy utilization rate, and reduced the thermal pollution of smoke evacuation to environment.
To sum up, the present invention is the recovery to fume afterheat during by heating operating mode, can increase substantially the heating efficiency of unit, reduces fuel consumption, realizes good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is direct-burning lithium bromide absorption cold-hot water assembing group heating operating mode schematic diagram in the past.
Fig. 2 is the direct heating operating mode of direct-burning lithium bromide absorption cold-hot water assembing group direct combustion high pressure generator schematic diagram in the past.
Fig. 3 is the hot water line of the outside water system of direct-burning lithium bromide absorption cold-hot water assembing group and the heating operating mode schematic diagram of the shared identical pipeline of cold water pipeline of band smoke valve Mist heat recovering of the present invention.
Fig. 4 is that hot water line and the cold water pipeline of the outside water system of direct-burning lithium bromide absorption cold-hot water assembing group of band smoke valve Mist heat recovering of the present invention do not share the heating operating mode schematic diagram of identical pipeline.
Reference numeral in figure:
Direct combustion high pressure generator 1, low pressure generator 2, condenser 3, evaporimeter 4, absorber 5, cryogenic fluid heat exchanger 6, high-temperature solution heat exchanger 7, solution by-passing valve 8, refrigerant vapour valve 9, cooling water water intaking valve 10, cold valves 11, hot-water heater 12, hot water water intaking valve 13, heating cryogen water valve 14, refrigeration cryogen water valve 15, hot water effluent's valve 16, cooling water outlet valve 17, flue gas condensing heat exchanger 18, heating smoke valve 19, refrigeration smoke valve 20, solution pump 21, cryogenic fluid pump 22.
The specific embodiment
As shown in Figure 3, by direct combustion high pressure generator 1, low pressure generator 2, condenser 3, evaporimeter 4, absorber 5, cryogenic fluid heat exchanger 6, high-temperature solution heat exchanger 7, cooling water water intaking valve 10, cold valves 11, hot water water intaking valve 13, heating cryogen water valve 14, refrigeration cryogen water valve 15, hot water effluent's valve 16, cooling water outlet valve 17, flue gas condensing heat exchanger 18, heating smoke valve 19, refrigeration smoke valve 20, solution pump 21, cryogenic fluid pump 22, the pipeline of control system (not shown) and connecting components, a kind of direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering that valve etc. form, it is on direct-burning lithium bromide absorption cold-hot water assembing group basis in the past, direct combustion high pressure generator smoke evacuation outlet is divided into two tunnels, cooling condition Shi Yi sets up on road refrigeration smoke valve 20, during heating operating mode, heating smoke valve 19 and flue gas condensing heat exchanger 18 are set up in another road, last two road smoke exhaust pipes can converge or discharge separately, cryogenic fluid pump 22 outlet coolant pipelines are divided into two tunnels, refrigeration cryogen water valve 15 and heating cryogen water valve 14 are set respectively on two road coolant pipelines, during cooling condition, wherein a road water as refrigerant enters evaporimeter 4 through refrigeration cryogen water valve 15, and during heating operating mode, the pipeline at another road water as refrigerant access refrigeration cryogen water valve 15 rear portions after heating cryogen water valve 14 enters flue gas condensing heat exchanger 18 and heats up converges or enters separately evaporimeter 4.The hot water line of outside water system and cold water pipeline share identical pipeline, entering cold (heat) the water water inlet pipe of evaporimeter 4 and entering between the cooling water inlet pipe of absorber 5 and establish the first cross over pipe, on this first cross over pipe, hot water water intaking valve 13 is set, going out the cooling water outlet pipe of condenser 3 and going out between cold (heat) water outlet pipe of evaporimeter 4 the second cross over pipe is set, and on this second cross over pipe, hot water effluent's valve 16 is set, on the cooling water outlet pipe that goes out condenser 3 after the second cross over pipe, cooling water outlet valve 17 is set.
When cooling condition moves, close heating cryogen water valve 14, hot water water intaking valve 13 and hot water effluent's valve 16, open refrigeration cryogen water valve 15, cold valves 11, cooling water water intaking valve 10 and cooling water outlet valve 17, evaporimeter 4 passes into cold water, absorber 5, condenser 3 pass into cooling water, close heating smoke valve 19, open refrigeration smoke valve 20, flue gas condensing heat exchanger 18 is not enabled, and unit moves by cooling flow in the past.The flue gas of direct combustion high pressure generator discharge can directly discharge through refrigeration smoke valve 20, does not need by flue gas condensing heat exchanger 18, and its beneficial effect is that flue gas directly discharges the drag losses that has reduced smoke evacuation.
When heating operating mode is moved, open heating cryogen water valve 14, hot water water intaking valve 13 and hot water effluent's valve 16, close refrigeration cryogen water valve 15, cold valves 11, cooling water water intaking valve 10 and cooling water outlet valve 17, heating hot water enters absorber 5 and condenser 3 through 13 series connection of superheated water water intaking valve, open heating smoke valve 19, close refrigeration smoke valve 20, enable flue gas condensing heat exchanger 18, unit is still pressed dual-effect refrigeration process flow operation, after sensible heat and condensation latent heat intensification that cryogenic coolant water enters flue gas condensing heat exchanger 18 recovered flue gas through heating cryogen water valve 14, enter evaporimeter 4 shwoot coolings, the refrigerant vapour producing enters absorber 5 and is absorbed by concentrated solution, bromize lithium concentrated solution is emitted the heat of condensation of refrigerant vapour when absorbing refrigerant vapour, heating hot water in heating absorption device 4 heat-transfer pipes.After the water as refrigerant cooling that does not have to evaporate, by cryogenic fluid pump 22, promote and enter again flue gas condensing heat exchanger 18 through heating cryogen water valve 14, form closed cycle, continue sensible heat and the condensation latent heat of recovery low-temperature flue gas.The hot water that flows out absorber 5 after heating up enters in condenser 3 heat-transfer pipes, absorbs the heat of condensation that direct combustion high pressure generator 1 cryogen condensate water shwoot and low pressure generator 2 produce secondary refrigerant vapour, is sent to heating user after intensification.The water as refrigerant that condenser 3 condenses enters evaporimeter 4, and according to the difference of fume afterheat ratio, part water as refrigerant enters in absorber 5 bottom solution through evaporimeter 4 water pond overflows, realizes heating demand and reclaims the autobalance that low temperature exhaust heat is loaded.By above-mentioned brand-new craft flow, the low-temperature flue gas of realizing the discharge of heating operating mode direct combustion high pressure generator transfers heat to the water as refrigerant of low temperature by flue gas condensing heat exchanger 18, the heat of water as refrigerant has passed to hot water by the absorption process of solution again, fully recycles sensible heat and the condensation latent heat of low-temperature smoke extraction.
As shown in Figure 4, Fig. 4 is that hot water line and the cold water pipeline of the outside water system of direct-burning lithium bromide absorption cold-hot water assembing group of band smoke valve Mist heat recovering of the present invention do not share the heating operating mode schematic diagram of identical pipeline.It is on the basis of Fig. 3, cancel first and second cross over pipe between cooling water pipe and cold (heat) water pipe, the hot water line of outside water system and cold water pipeline do not share identical pipeline, after entering the cooling water inlet pipe valve of absorber 5, set up a road hot water inlet pipe, and hot water water intaking valve 13 is set on this hot water inlet pipe; Going out on the cooling water outlet pipe of condenser, to set up a road hot water outlet pipe, and hot water effluent's valve 16 is being set on this hot water outlet pipe, going out cooling water outlet valve 17 is set on the cooling water outlet pipe of condenser.During cooling condition, close heating smoke valve 19, heating cryogen water valve 14, hot water water intaking valve 13 and hot water effluent's valve 16, open refrigeration smoke valve 20, refrigeration cryogen water valve 15, cold valves 11, cooling water water intaking valve 10 and cooling water outlet valve 17, evaporimeter 4 passes into cold water, and absorber 5, condenser 3 pass into cooling water; During the operation of heating operating mode, open heating smoke valve 19, heating cryogen water valve 14, hot water water intaking valve 13 and hot water effluent's valve 16, close refrigeration smoke valve 20, refrigeration cryogen water valve 15, cold valves 11, cooling water water intaking valve 10 and cooling water outlet valve 17, heating hot water enters absorber 5 and condenser 3 through 13 series connection of superheated water water intaking valve.
Above scheme is applicable to evaporimeter-absorber and can is single hop (shown in figure), also can is two sections or multistage.
Claims (4)
1. the direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering, comprise direct combustion high pressure generator (1), low pressure generator (2), condenser (3), evaporimeter (4), absorber (5), cryogenic fluid heat exchanger (6), high-temperature solution heat exchanger (7), solution pump (21), cryogenic fluid pump (22) and valve, it is characterized in that: direct combustion high pressure generator smoke evacuation outlet is divided into two tunnels, cooling condition Shi Yi sets up on road refrigeration smoke valve (20), during heating operating mode, heating smoke valve (19) and flue gas condensing heat exchanger (18) are set up in another road, last two road smoke exhaust pipes converge or discharge separately, cryogenic fluid pump is exported to coolant pipeline and be divided into two tunnels, cooling condition Shi Yi road is through refrigeration cryogen water valve (15) access evaporimeter (4), and during heating operating mode, the pipeline at cryogen water valve (15) rear portion of access refrigeration again after heating cryogen water valve (14) access flue gas condensing heat exchanger (18), another road converges or accesses separately evaporimeter (4), and during cooling condition cooling water flow is through absorber (5) and condenser (3), flow through absorber (5) and condenser (3) of heating hot water during heating operating mode.
2. a kind of direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering according to claim 1, it is characterized in that: the hot water line of outside water system and cold water pipeline share identical pipeline, entering the hot and cold water water inlet pipe of evaporimeter and entering between the cooling water inlet pipe of absorber to have the first cross over pipe, hot water water intaking valve (13) is set on this first cross over pipe, going out the cooling water outlet pipe of condenser and going out between the hot and cold water outlet pipe of evaporimeter the second cross over pipe is set, and hot water effluent's valve (16) is set on this second cross over pipe, cooling water outlet valve (17) is set on the cooling water outlet pipe that goes out condenser after the second cross over pipe.
3. a kind of direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering according to claim 1, it is characterized in that: the hot water line of outside water system and cold water pipeline do not share identical pipeline, on cooling water inlet pipe after the cooling water water intaking valve that enters absorber (5), set up a road hot water inlet pipe, hot water water intaking valve (13) is set on the hot water inlet pipe of Bing Gai road; Going out on the cooling water outlet pipe of condenser to set up a road hot water outlet pipe, hot water effluent's valve (16) is set on the hot water outlet pipe of Bing Gai road, and on the cooling water outlet pipe that goes out condenser after the hot water outlet pipe of Gai road, cooling water outlet valve (17) is set.
4. according to a kind of direct-burning lithium bromide absorption cold-hot water assembing group with smoke valve Mist heat recovering described in claim 1 or 2 or 3, it is characterized in that: described evaporimeter (4) and absorber (5) are single hop, two sections or multistage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552871.5A CN102997496B (en) | 2012-12-19 | 2012-12-19 | Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552871.5A CN102997496B (en) | 2012-12-19 | 2012-12-19 | Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat |
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| CN102997496A CN102997496A (en) | 2013-03-27 |
| CN102997496B true CN102997496B (en) | 2014-11-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542592A (en) * | 2013-09-28 | 2014-01-29 | 昆山市周市溴化锂溶液厂 | Direct combustion type lithium bromide absorption cold and hot water unit with heat recycling function |
| CN106989536A (en) * | 2017-04-14 | 2017-07-28 | 双良节能***股份有限公司 | Multifunctional steam type first class lithium bromide absorptive heat pump unit |
| CN113340016A (en) * | 2021-06-23 | 2021-09-03 | 双良节能***股份有限公司 | After-burning type lithium bromide absorption heat exchange system with three paths of water supplying heat simultaneously |
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| CN101526281A (en) * | 2009-01-08 | 2009-09-09 | 江苏双良空调设备股份有限公司 | Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit |
| CN102230689A (en) * | 2011-06-03 | 2011-11-02 | 北京建筑工程学院 | Novel refrigeration, dehumidification and heating multifunctional system |
| CN202470536U (en) * | 2011-12-24 | 2012-10-03 | 双良节能***股份有限公司 | Double-high flue gas hot-water after-burning type lithium bromide absorption type cold and hot water unit |
| CN203011002U (en) * | 2012-12-19 | 2013-06-19 | 双良节能***股份有限公司 | Direct-fired lithium bromide absorption type heating and refrigerating unit with smoke valve and used for recovering smoke waste heat |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3883838B2 (en) * | 2001-10-25 | 2007-02-21 | 三洋電機株式会社 | Absorption refrigerator |
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2012
- 2012-12-19 CN CN201210552871.5A patent/CN102997496B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526281A (en) * | 2009-01-08 | 2009-09-09 | 江苏双良空调设备股份有限公司 | Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit |
| CN102230689A (en) * | 2011-06-03 | 2011-11-02 | 北京建筑工程学院 | Novel refrigeration, dehumidification and heating multifunctional system |
| CN202470536U (en) * | 2011-12-24 | 2012-10-03 | 双良节能***股份有限公司 | Double-high flue gas hot-water after-burning type lithium bromide absorption type cold and hot water unit |
| CN203011002U (en) * | 2012-12-19 | 2013-06-19 | 双良节能***股份有限公司 | Direct-fired lithium bromide absorption type heating and refrigerating unit with smoke valve and used for recovering smoke waste heat |
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