CN105423593A - Heating normal-temperature smoke exhaust direct combustion type lithium bromide absorbing type cold and hot water unit - Google Patents
Heating normal-temperature smoke exhaust direct combustion type lithium bromide absorbing type cold and hot water unit Download PDFInfo
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- CN105423593A CN105423593A CN201510985466.6A CN201510985466A CN105423593A CN 105423593 A CN105423593 A CN 105423593A CN 201510985466 A CN201510985466 A CN 201510985466A CN 105423593 A CN105423593 A CN 105423593A
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- heating
- hot water
- absorber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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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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- Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
Abstract
The invention relates to a heating normal-temperature smoke exhaust direct combustion type lithium bromide absorbing type cold and hot water unit. The cold and hot water unit is characterized in that the unit is additionally provided with a gas-gas heater (17), a flash evaporator (18), a heating absorber (19), a heating solution heat exchanger (20) and a heating refrigerant pump (21), wherein the flash evaporator (18) and the heating absorber (19) are arranged in the same cavity, a hot water pipeline is additionally arranged on a cold and hot water inlet pipe (15) of the unit, and the hot water enters a heat exchange pipe of the heating absorber (19); a dilute solution pipeline is additionally arranged on a solution pump outlet pipe (12) of the unit, and the dilute solution is cooled by the heating solution heat exchanger (20) and then enters the heating absorber (19) to be sprayed; a low-temperature refrigerant water supplementing pipeline (23) is additionally arranged on an evaporator liquid sac (14) of the unit; and the heating refrigerant pump (21) pumps low-temperature refrigerant water in a flash evaporator liquid sac (25) into the gas-gas heater (17) to raise the temperature, and then the low-temperature refrigerant water enters the flash evaporator to be subjected to flash evaporation. The unit disclosed by the invention can effectively lower the smoke exhaust temperature and improve heating efficiency, and is easy to operate.
Description
Technical field
The present invention relates to a kind of direct-burning type lithium bromide absorption type hot water or cold water unit.Belong to air conditioner technical field.
Background technology
Current direct-burning type lithium bromide absorption type hot water or cold water unit as shown in Figure 1, is made up of the pipeline of direct combustion high pressure generator 1, low pressure generator 9, condenser 8, evaporimeter 5, absorber 4, cryogenic fluid heat exchanger 3, high-temperature solution heat exchanger 2, heating concentrated solution transfer valve 10, heating refrigerant vapour transfer valve 11, solution pump 6, cryogenic fluid pump 7, valve and control system (not shown) and connecting components.Unit is when heating operating mode is run, heating concentrated solution transfer valve 10 and heating refrigerant vapour transfer valve 11 are opened, cryogenic fluid pump 7 and external system cooling water pump stop, the low-temperature water heating come from air conditioner user enters in evaporimeter 5 heat exchanger tube, heated by the heat of condensation of the water as refrigerant steam of heat exchange pipe external surface direct combustion high pressure generator 1 heat dilute solution generation, temperature is sent to heating user after raising, concentrated solution after direct combustion high pressure generator 1 is concentrated enters in absorber 4 to mix with the water as refrigerant after condensation and becomes weak solution, be sent to direct combustion high pressure generator 1 by solution pump 6 again circulate and heat.Because the heating hot water leaving water temperature produced limits, solution temperature is higher, causes exhaust gas temperature also higher, affects the heating thermal efficiency, and if heating water outlet temperature is 60 DEG C time, direct combustion high pressure generator exhaust gas temperature is at about 155 DEG C, and heating efficiency is about 93%.Particularly in the winter of cold, outdoor temperature is low, and chimney just emits white cigarette, both wastes energy, again contaminated environment.A kind of effective reduction exhaust gas temperature, raising heating efficiency, novel direct combustion type lithium bromide absorption cold simple to operate, Hot water units how is found to become one of important topic of research at present.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of effective reduction exhaust gas temperature is provided, improves heating efficiency, direct-burning type lithium bromide absorption type hot water or cold water unit simple to operate.
The object of the present invention is achieved like this: a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type is cold, Hot water units, comprise direct combustion high pressure generator, low pressure generator, condenser, evaporimeter, absorber, cryogenic fluid heat exchanger and high-temperature solution heat exchanger, it is characterized in that: described unit adds flue gas heat-exchange unit, flash vessel, heating absorber, heating solution heat exchanger and heating cryogenic fluid pump, flue gas heat-exchange unit is arranged on direct combustion high pressure generator smoke exhaust pipe, flash vessel and heating absorber are arranged in same cavity, and the position be placed on higher than evaporimeter and absorber components, cold at unit, hot water inlet pipe sets up a road hot water line, this road hot water enters in heating absorber heat exchanging pipe, and heating hot water transfer valve is set on this hot water line, go out the cold of heating absorber hot water access unit, hot water outlet, the solution pump outlet of unit is set up a road weak solution pipeline, this road weak solution enters heating absorber spray through the cooling of heating solution heat exchanger, and heating weak solution transfer valve is set on this weak solution pipeline, in heating absorber, weak solution becomes the lower weak solution of concentration after absorbing cryogenic coolant steam, enters absorber cylinder body bottom by height level difference through the intensification of heating solution heat exchanger, the evaporimeter liquid capsule of unit is set up a road cryogenic coolant water and supplements pipeline, this road water as refrigerant enters flash vessel liquid capsule as the moisturizing of cryogenic coolant water, cryogenic coolant water in flash vessel liquid capsule is squeezed into flue gas heat-exchange unit by heating cryogenic fluid pump, cryogenic coolant water and direct combustion high pressure generator flue gas heat exchange out, and cryogenic coolant coolant-temperature gage raises and enters flash vessel flash distillation, discharge after flue gas heat recovered temperature reduces.
The invention has the beneficial effects as follows:
The present invention is by above-mentioned flow process, and create a low-temperature receiver lower than smog discharge temperature, not only reclaimed the sensible heat of flue gas, also reclaimed the latent heat of water vapour in flue gas, make exhaust gas temperature be down to normal temperature, heating efficiency significantly improves.Such as: produce heating hot water outlet temperature about 60 DEG C time, flash vessel absorber cavity internal pressure is at about 25mmHg, enter the cryogenic coolant coolant-temperature gage of flue gas heat-exchange unit at about 26 DEG C, the exhaust gas temperature of unit is reduced to less than 35 DEG C, compared with direct fired machine exhaust gas temperature 155 DEG C in the past, many recovered flue gas 120 DEG C of temperature difference sensible heat and flue gas in the heat of condensation of water vapour, fire natural gas direct combustion type unit energy utilization rate than ever and improve about 13%, heating efficiency reaches about 106%.In the constant situation of unit heating capacity, fuel consumption significantly reduces, and reduces operating cost, reaches energy-efficient object, has stopped the phenomenon that winter heating chimney emits white cigarette simultaneously, decreases the thermal pollution of smoke evacuation to environment, protects environment.The present invention is simple to operate.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of direct-burning type lithium bromide absorption type hot water or cold water unit heat supply in the past.
Fig. 2 heating normal temperature smoke evacuation of the present invention direct-burning type lithium bromide absorption type hot water or cold water unit heat supply schematic flow sheet.
Reference numeral:
Direct combustion high pressure generator 1
High-temperature solution heat exchanger 2
Cryogenic fluid heat exchanger 3
Absorber 4
Evaporimeter 5
Solution pump 6
Cryogenic fluid pump 7
Condenser 8
Low pressure generator 9
Heating concentrated solution transfer valve 10
Heating refrigerant vapour transfer valve 11
Solution pump outlet 12
Absorber cylinder body bottom 13
Evaporimeter liquid capsule 14
Hot water or cold water's inlet tube 15
Hot water or cold water's outlet 16
Flue gas heat-exchange unit 17
Flash vessel 18
Heating absorber 19
Heating heat exchanger 20
Heating cryogenic fluid pump 21
Heating weak solution transfer valve 22
Cryogenic coolant water supplements pipeline 23
Heating hot water transfer valve 24
Flash vessel liquid capsule 25.
Detailed description of the invention
As shown in Figure 2, at direct-burning type lithium bromide absorption type hot water or cold water unit in the past as on the basis of Fig. 1, add flue gas heat-exchange unit 17, flash vessel 18, heating absorber 19, heating solution heat exchanger 20 and heating cryogenic fluid pump 21, flue gas heat-exchange unit 17 is arranged on direct combustion high pressure generator 1 smoke exhaust pipe, flash vessel 18 and heating absorber 19 are arranged in same cavity, and are placed on the position higher than evaporimeter 5 and absorber 4 parts.Hot water or cold water's inlet tube 15 of unit is set up a road hot water line, this road hot water enters in heating absorber 19 heat exchanger tube, and heating hot water transfer valve 24 is set on this hot water line, the water that this Lu Shuiyu enters evaporimeter 5 is in parallel, goes out hot water or cold water's outlet of heating absorber 19 hot water access unit; The solution pump outlet 12 of unit is set up a road weak solution pipeline, this road weak solution enters heating absorber 19 through heating solution heat exchanger 20 cooling and sprays, and heating weak solution transfer valve 22 is set on this weak solution pipeline, this road weak solution is in parallel with the weak solution entering direct combustion high pressure generator.In heating absorber 19, weak solution becomes the lower weak solution of concentration after absorbing cryogenic coolant steam, enters absorber cylinder body bottom 13 by height level difference through heating solution heat exchanger 20 intensification.The evaporimeter liquid capsule 14 of unit is set up a road cryogenic coolant water and supplements pipeline 23, this road water as refrigerant enters flash vessel liquid capsule 25 as the moisturizing of cryogenic coolant water; Cryogenic coolant water in flash vessel liquid capsule 25 is squeezed into after flue gas heat-exchange unit 17 heats up and is entered flash vessel 18 flash distillation by heating cryogenic fluid pump 21.Discharge after flue gas heat recovered temperature reduces.
When heating operating mode is run, heating circulation process in the past still normally runs, cryogenic fluid pump 7 and external system cooling water pump stop, heating concentrated solution transfer valve 10 and heating refrigerant vapour transfer valve 11 are opened, solution pump 6 starts, and the heating weak solution transfer valve 22 newly established and heating hot water transfer valve 24 are opened, heating cryogenic fluid pump 21 starts.Be divided into two tunnels from solution pump outlet weak solution, a road weak solution enters direct combustion high pressure generator 1 and concentrates, and another road weak solution enters heating absorber 19 through heating solution heat exchanger 20 cooling and sprays; the low-temperature water heating come from heating user is divided into two tunnels, one road low-temperature water heating enters in evaporimeter 5 heat exchanger tube, heated by the heat of condensation of the high temperature refrigerant vapour of heat exchange pipe external surface direct combustion high pressure generator 1 heat dilute solution generation, another road low-temperature water heating enters in heating absorber 19 heat exchanger tube, heated from flash vessel 18 cryogenic coolant steam liberated heat in the absorption of heat exchange pipe external surface weak solution by spray, two-way hot water temperature raises to merge together and is sent to heating user, concentrated solution after direct combustion high pressure generator 1 is concentrated enters in absorber 4 to mix with the rear water as refrigerant overflowed that condenses in evaporimeter 5 and becomes weak solution, in heating absorber 19, weak solution becomes the lower weak solution of concentration after absorbing cryogenic coolant steam, enter absorber cylinder body bottom 13 by height level pressure reduction through heating solution heat exchanger 20 intensification to mix with weak solution in absorber 4, solution pump 6 will wherein a road weak solution be sent to direct combustion high pressure generator 1 and again circulates and heat concentrated, another road weak solution is sent to and enters heating absorber 19 after heating solution heat exchanger 20 is lowered the temperature and again circulate and absorb cryogenic coolant steam.Cryogenic coolant water in flash vessel liquid capsule 25 is squeezed into flue gas heat-exchange unit 17 and direct combustion high pressure generator 1 flue gas heat exchange out by heating cryogenic fluid pump 21, discharge after flue gas heat recovered temperature reduces, it is cryogenic coolant steam that water as refrigerant enters shwoot in pressure lower flash vessel 18 cavity after heating up, cryogenic coolant steam is absorbed by the solution sprayed outside heating absorber 19 heat exchanger tube, solution continuous absorption refrigerant vapour in heating absorber 19 makes cavity internal pressure remain on certain value, and flash distillation absorption process is just constantly carried out.The moisturizing of flash vessel 18 water as refrigerant supplements pipeline 23 from evaporimeter liquid capsule 14 through cryogenic coolant water by the pressure differential between evaporimeter 5 and flash vessel 18 and enters flash vessel liquid capsule 25, constantly gives flash vessel 18 moisturizing.
When cooling condition runs, by heating concentrated solution transfer valve 10, heating refrigerant vapour transfer valve 11, heating weak solution transfer valve 22, heating hot water transfer valve 24 Close All, heating cryogenic fluid pump 21 stops, flue gas heat-exchange unit 17, flash vessel 18, heating absorber 19 and heating solution heat exchanger 20 stop circulation, and unit is still by kind of refrigeration cycle process flow operation in the past.
In above scheme, flash vessel 18 and heating absorber 19 housing can independently be arranged, also flash vessel 18 and heating absorber 19 can be arranged in low pressure generator 9 and condenser 8 housing, separate with dividing plate between them, flash vessel 18 and heating absorber 19 are in same cavity, and low pressure generator 9 and condenser 8 are in same cavity.
Above scheme is applicable to evaporimeter 5, absorber 4 can be single hop (shown in figure), also can be two sections or multistage, cooling water can be parallel-connection flow (shown in figure) also can be serial flow.
Claims (4)
1. a heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type is cold, Hot water units, comprises direct combustion high pressure generator (1), low pressure generator (9), condenser (8), evaporimeter (5), absorber (4), cryogenic fluid heat exchanger (3) and high-temperature solution heat exchanger (2), is characterized in that: described unit adds flue gas heat-exchange unit (17), flash vessel (18), heating absorber (19), heating solution heat exchanger (20) and heating cryogenic fluid pump (21), flue gas heat-exchange unit (17) is arranged on direct combustion high pressure generator (1) smoke exhaust pipe, flash vessel (18) and heating absorber (19) are arranged in same cavity, and the position be placed on higher than evaporimeter (5) and absorber (4) parts, cold at unit, hot water inlet pipe (15) sets up a road hot water line, this road hot water enters in heating absorber (19) heat exchanger tube, and on this hot water line, arrange heating hot water transfer valve (24), goes out the cold of heating absorber (19) hot water access unit, hot water outlet, the solution pump outlet (12) of unit is set up a road weak solution pipeline, this road weak solution enters heating absorber (19) spray through heating solution heat exchanger (20) cooling, and heating weak solution transfer valve (22) is set on this weak solution pipeline, heating absorber (19) interior weak solution becomes the lower weak solution of concentration after absorbing cryogenic coolant steam, enters absorber cylinder body bottom (13) by height level difference through heating solution heat exchanger (20) intensification, the evaporimeter liquid capsule (14) of unit is set up a road cryogenic coolant water and supplements pipeline (23), this road water as refrigerant enters flash vessel liquid capsule (25) as the moisturizing of cryogenic coolant water, interior for flash vessel liquid capsule (25) cryogenic coolant water is squeezed into after flue gas heat-exchange unit (17) heats up and is entered flash vessel (18) flash distillation by heating cryogenic fluid pump (21).
2. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water unit according to claim 1, it is characterized in that: described unit flash vessel (18) and heating absorber (19) housing are independently arranged, or flash vessel (18) and heating absorber (19) are arranged in low pressure generator (9) and condenser (8) housing, separate with dividing plate between them, flash vessel (18) and heating absorber (19) are arranged in same cavity, and low pressure generator (9) and condenser (8) are arranged in same cavity.
3. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water unit according to claim 1 and 2, is characterized in that: the evaporimeter (5) of described unit and absorber (4) are single hop, two sections or multistage.
4. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water unit according to claim 1 and 2, is characterized in that: the cooling water of described unit is parallel-connection flow or serial flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985466.6A CN105423593B (en) | 2015-12-25 | 2015-12-25 | Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985466.6A CN105423593B (en) | 2015-12-25 | 2015-12-25 | Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit |
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| CN105423593A true CN105423593A (en) | 2016-03-23 |
| CN105423593B CN105423593B (en) | 2017-09-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362035A (en) * | 2018-04-09 | 2018-08-03 | 双良节能系统股份有限公司 | Eliminating white smoke efficient direct-burning lithium bromide absorption cold, Hot water units system |
| CN108397931A (en) * | 2018-04-09 | 2018-08-14 | 双良节能系统股份有限公司 | A kind of environment-friendly high-efficiency energy-saving direct-burning type lithium bromide absorption type hot water or cold water's unit |
| CN108489142A (en) * | 2018-04-09 | 2018-09-04 | 双良节能系统股份有限公司 | A kind of environment-friendly high-efficiency direct-burning type lithium bromide absorption type hot water or cold water's machine set system |
| CN108518891A (en) * | 2018-04-09 | 2018-09-11 | 双良节能系统股份有限公司 | Eliminating white smoke band health hot water direct-burning type lithium bromide absorption type hot water or cold water's unit |
| CN109458753A (en) * | 2018-12-27 | 2019-03-12 | 双良节能系统股份有限公司 | A kind of on-line checking density flue gas type suction-type lithium bromide low-temperature cold water unit |
| CN110307662A (en) * | 2019-07-08 | 2019-10-08 | 双良节能系统股份有限公司 | The lithium bromide absorption-type machine unit of direct combustion type heat pump and hot-water type refrigeration |
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| CN205279510U (en) * | 2015-12-25 | 2016-06-01 | 双良节能系统股份有限公司 | Heating normal atmospheric temperature is discharged fume, and direct combustion type lithium bromide absorption formula is cold, hot water unit |
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| JPH01217165A (en) * | 1988-02-23 | 1989-08-30 | Sanyo Electric Co Ltd | Absorption heat pump device |
| CN1083916A (en) * | 1992-09-05 | 1994-03-16 | 三洋电机株式会社 | Single, double effect absorption refrigerator |
| JP2000121196A (en) * | 1998-10-19 | 2000-04-28 | Sanyo Electric Co Ltd | Cooling/heating system utilizing waste heat |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362035A (en) * | 2018-04-09 | 2018-08-03 | 双良节能系统股份有限公司 | Eliminating white smoke efficient direct-burning lithium bromide absorption cold, Hot water units system |
| CN108397931A (en) * | 2018-04-09 | 2018-08-14 | 双良节能系统股份有限公司 | A kind of environment-friendly high-efficiency energy-saving direct-burning type lithium bromide absorption type hot water or cold water's unit |
| CN108489142A (en) * | 2018-04-09 | 2018-09-04 | 双良节能系统股份有限公司 | A kind of environment-friendly high-efficiency direct-burning type lithium bromide absorption type hot water or cold water's machine set system |
| CN108518891A (en) * | 2018-04-09 | 2018-09-11 | 双良节能系统股份有限公司 | Eliminating white smoke band health hot water direct-burning type lithium bromide absorption type hot water or cold water's unit |
| CN108397931B (en) * | 2018-04-09 | 2023-12-15 | 双良节能系统股份有限公司 | Environment-friendly, efficient and energy-saving direct-fired lithium bromide absorption type cold and hot water unit |
| CN108362035B (en) * | 2018-04-09 | 2024-01-05 | 双良节能系统股份有限公司 | White smoke-eliminating efficient direct-fired lithium bromide absorption type cold and hot water unit system |
| CN108518891B (en) * | 2018-04-09 | 2024-03-08 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold and hot water unit with sanitary hot water for eliminating white smoke |
| CN108489142B (en) * | 2018-04-09 | 2024-03-22 | 双良节能系统股份有限公司 | Environment-friendly efficient direct-fired lithium bromide absorption type cold and hot water unit system |
| CN109458753A (en) * | 2018-12-27 | 2019-03-12 | 双良节能系统股份有限公司 | A kind of on-line checking density flue gas type suction-type lithium bromide low-temperature cold water unit |
| CN109458753B (en) * | 2018-12-27 | 2024-04-02 | 双良节能系统股份有限公司 | Online detection density flue gas type lithium bromide absorption type low-temperature water chilling unit |
| CN110307662A (en) * | 2019-07-08 | 2019-10-08 | 双良节能系统股份有限公司 | The lithium bromide absorption-type machine unit of direct combustion type heat pump and hot-water type refrigeration |
| CN110307662B (en) * | 2019-07-08 | 2023-12-22 | 双良节能系统股份有限公司 | Lithium bromide absorption unit for direct-fired heat pump and hot water type refrigeration |
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| CN105423593B (en) | 2017-09-08 |
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