CN106052183A - Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water - Google Patents

Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water Download PDF

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Publication number
CN106052183A
CN106052183A CN201610400981.8A CN201610400981A CN106052183A CN 106052183 A CN106052183 A CN 106052183A CN 201610400981 A CN201610400981 A CN 201610400981A CN 106052183 A CN106052183 A CN 106052183A
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water
heat
low pressure
direct
low
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周立超
陈泽华
孟鑫
周迎梅
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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • 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]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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

Abstract

The invention relates to a direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water. According to the technical scheme, the output end of a produced water low pressure heat exchange evaporator is connected to a low pressure absorber through a pipeline; the input end of the produced water low pressure heat exchange evaporator is connected with an oilfield produced water pipeline; the produced water low pressure heat exchange evaporator is used for absorbing the low-grade heat of the oilfield produced water; after absorbing heat and being vaporized, low pressure clean water of an inner cavity of the produced water low pressure heat exchange evaporator enters a low-pressure absorber shell pass; the output end of the low pressure absorber is connected to a direct-fired type generator through an anti-corrosion water pump; the bottom of the direct-fired type generator is connected to the low-pressure absorber through a second throttling valve; the top of the direct-fired type generator is connected to a normal pressure condenser through a pipeline; and the bottom of the normal pressure condenser is connected to the produced water low pressure heat exchange evaporator through a first throttling valve. Compared with the prior art, the heating coefficient is increased three times, two technological processes and a water pump are omitted, and the corrosion and scale formation problems of the oilfield produced water are solved.

Description

A kind of deep-etching direct-fired heat-pump apparatus of high salinity oil field extracted water
Technical field
The present invention relates to the Processes and apparatus that a kind of low grade heat energy utilizes, particularly to a kind of deep-etching high salinity oil The direct-fired heat-pump apparatus of field recovered water.
Background technology
China's energy-consuming becomes increasingly conspicuous based on coal and oil, environmental problem, is second-biggest-in-the-world energy-consuming state.Make The flue dust become and SO2 emissions, account for the 70% and 90% of whole nation total release, the acid rain that sulfur dioxide (SO2) emissions are formed respectively Area has accounted for 1/3rd of area.
The Committee of Development and Reform require to strengthen by land gas industry exploring, develop, produce, build in energy-conservation science and technology and joint Can theoretical, the research of method.Reduce the energy consumption during oil vapor treatment, simplify the technological process of oil vapor treatment, use many as far as possible The energy-efficient processing equipment of functional unification, builds Combined Treatment station, oil field.Research uses high-efficiency sewage processing method, reclaims dirt Wet crude in water, the purification water that re-injection is qualified；Promote heat pump techniques and reclaim the low-temperature heat quantity of oil field extracted water.
There is the produced-water reinjection after substantial amounts of separation wet crude in China, and before departures, temperature is 40 ~ 60 DEG C, only Shengli Oil Field With regard to 300,000,000 tons/year；As can be seen here, the low level recuperation of heat of China's oil field extracted water has a high potential.People are paying close attention to always and how to return Receiving utilizes this partial heat energy to come the production for oil field and service for life, solves the pollution caused because of burn crude or natural gas simultaneously Problem (simultaneously as former oil and gas belongs to scarce resource for China, it is therefore necessary to save and use).This part heat The feature of energy is that grade ratio is relatively low, utilizes heat pump to improve its temperature, can save substantial amounts of natural gas and crude oil.Considerable The waste heat of recovered water is discharged in air, i.e. causes thermal pollution to waste again resource.On the one hand, in entering along with the exploitation in oil field In the later stage, the oil-polluted water water yield of oil well is increasing；On the other hand, petroleum pipeline heat tracing, wet crude dewatering process, aqueous former The outer defeated heating of oil, multi-purpose station in winter, the substantial amounts of building of production crew need heating.Current above-mentioned heat supply principal mode is to use combustion Gas oil burning boiler, uses coal-burning boiler on a small quantity, and the energy utilization mode of this form really uses burning high-grade fuel energy Source obtain low grade heat energy, energy efficiency is relatively low, the utilization of energy thermal efficiency of this heating furnace about 80%,Fire is usedEfficiency is only About 30%.Based on above-mentioned consideration, compression heat pump or absorption heat pump is used to add for oil transportation heat tracing, crude oil dehydration, crude oil Heat and life heating are problems that must solve.Oil field extracted water compression heat pump produces and success in life in oil field Applied, achieve the most energy-conservation and environment protecting, but compression heat pump use electric drive, electricity price is higher, and sky So gas inside price is relatively low makes equipment payoff period longer (2 3 years), constrains the enthusiasm that production unit is promoted, and direct combustion Absorption heat pump can realize fuel combustion and directly drive, it is not necessary to motor driven compressor, can realize comprehensively heating and is Several 1.6 2, it is enhanced about more than once than the efficiency of current stove about 80%.
In the past few years it was verified that use direct fired absorption heat pump, heated wet crude or coolant-temperature gage can reach 80 More than DEG C, the most also there is the high Energy Efficiency Ratio of comparison (about 1.8).
Several years ago, the oil field such as triumph, Central Plains has all carried out the direct-fired heat pump heating of oil field extracted water or wet crude dehydration And the test of outer defeated heating and application, although achieve higher Energy Efficiency Ratio, but owing to most of oil field extracted waters are rotten to metal Erosion property is strong, and fouling is serious, the most in the application for the safety of equipment, has added clear water cycle heat exchange system before low pressure evaporator System, thus also make to add the one-level temperature difference and circulating pump merit；For the dehydrothermal of wet crude, also use and first use direct combustion Formula heat pump clear water, then the technique with clear water heating aqueous crude oil, therefore there is problems in that 1, the corrosion of recovered water heat exchanger Seriously, bore a hole, rear employing degree titanium heat exchanger tube, but cost is the highest；2, recovered water fouling of heat exchangers is serious, blocks after 1 to two year Cannot use；3, recovered water clear water heat exchanger makes to enter the temperature of direct-fired heat pump oil field extracted water low pressure heat exchanging evaporator Only have 35 40 DEG C, reduce 8 10 DEG C than recovered water temperature；4, recovered water clear water heat exchange process needs water pump to transport for a long time OK；5, in the temperature heat pump more direct-fired than recovered water that wet crude high temperature clear water heat exchanger makes wet crude be finally reached high Temperature clear water output reduces 20 80 DEG C, and entropy increases relatively big, reduces heating efficiency；6, wet crude high temperature clear water heat exchanger stream Journey needs water pump longtime running；7, in low-pressure absorber, atmospheric condenser, the temperature difference does not has echelon to utilize, and adds the entropy of system Increase.
Summary of the invention
The purpose of the present invention is aiming at the drawbacks described above that prior art exists, it is provided that a kind of deep-etching high salinity oil field The direct-fired heat-pump apparatus of recovered water, compared to existing technology, improves heating efficiency three times, eliminates two flow processs and water pump, solves Determine the corrosion of oil field extracted water and scale problems.
A kind of deep-etching direct-fired heat pump technology of high salinity oil field extracted water that the present invention mentions, this technique be by with Under each flow implementation:
First, first, oil field extracted water is sent into recovered water low pressure heat exchanging evaporator tube side, going out of described Water Tank by Water Tank Tank gauge pressure is 0.06MPa, enters wastewater discharge pumping plant pipeline: recovered water low pressure heat exchange is evaporated after oil field extracted water heat release cooling The shell side of device has low pressure clear water, enters low-pressure absorber shell side after heat absorption vaporization, inhaled by the dense lithium-bromide solution that concentration is 60% Becoming dilute lithium-bromide solution that concentration is 52% after receipts and release heat, dilute lithium-bromide solution is delivered to straight after anti-corrosion water pump is boosted Combustion generator；Concentration be 52% dilute lithium-bromide solution in direct-fired generator, be heated to 140 to 180 DEG C of boilings, vaporization After water at atmospheric pressure steam deliver to atmospheric condenser shell side through pipeline, heat release is delivered to adopt after condensing into water after first throttle valve blood pressure lowering The heat absorption vaporization of water outlet low pressure heat exchanging evaporator shell side；
Wherein, concentration is that in direct-fired generator, heated boiling is concentrated into concentration to dilute lithium-bromide solution of 52% is 60%, dense Lithium-bromide solution delivers to low-pressure absorber shell side after second throttle blood pressure lowering；
It addition, wet crude initially enters the tube side of low-pressure absorber, absorb what oil field extracted water low pressure heat exchanging evaporator was sent here Low pressure water vapor condenses liberated heat, then delivers to the water at atmospheric pressure steam condensation that atmospheric condenser absorption direct-fired generator is sent here Liberated heat, reach dewatering process or outer defeated technique temperature required after deliver to multi-purpose station settling tank or the most defeated.
Above-mentioned oil field extracted water low pressure heat exchanging evaporator uses the graphite-pipe of anti-corrosion anti-scale or graphite block hole to be heat exchange unit Part.
A kind of deep-etching direct-fired heat-pump apparatus of high salinity oil field extracted water that the present invention mentions, including direct-fired generation Device, atmospheric condenser, first throttle valve, recovered water low pressure heat exchanging evaporator, low-pressure absorber, anti-corrosion water pump, second throttle, The outfan of described recovered water low pressure heat exchanging evaporator is connected to low-pressure absorber by pipeline, and input connects oil field produced Waterpipe, absorbs the tow taste heat of oil field extracted water by recovered water low pressure heat exchanging evaporator；Recovered water low pressure heat exchange is evaporated The low pressure clear water of device inner chamber, enters low-pressure absorber shell side after heat absorption vaporization；The outfan of described low-pressure absorber is by anti- Rotten water pump is connected to direct-fired generator, and the bottom of direct-fired generator is connected to low-pressure absorber by second throttle, directly The top of combustion generator is connected to atmospheric condenser by pipeline, and the bottom of atmospheric condenser is connected to by first throttle valve Recovered water low pressure heat exchanging evaporator；Wet crude pipeline first passes around the heat exchange coil of low-pressure absorber, is then passed through normal pressure cold The heat exchange coil of condenser, it is achieved heating for multiple times temperature raising.
Above-mentioned oil field extracted water low pressure heat exchanging evaporator uses the graphite-pipe of anti-corrosion anti-scale or graphite block hole to be heat exchange unit Part.
Compared with prior art, it has the beneficial effect that the present invention:
1, graphite-pipe shell-type or the oil field produced water-to-water heat exchanger of block cellular type is used to prevent the corrosion of recovered water heat exchanger, this graphite-pipe Inner surface fouling is seldom and can be at Automatic-falling under water impact；
2, simplification of flowsheet, removes recovered water---and clear water heat exchange process, the temperature of low pressure evaporator, up to 40 50 DEG C, subtracts Lack heat transfer temperature difference, improve heating efficiency for the first time；
3, wet crude is directly entered the direct-fired heat pump of recovered water, and to reduce intermediate equipment and heat transfer temperature difference, second time improves Heating efficiency, eliminates the water pump of wet crude high temperature clear water heat exchanger requirements of process, energy-conservation while make wet crude add Hot systems is greatly simplified；
4, wet crude and low-pressure absorber, atmospheric condenser echelon heat exchange, the entropy reducing system increases, and third time improves system Hot coefficient；
Processes and apparatus Energy Efficiency Ratio height of the present invention, environmental protection, operating pressure are low, and system is relatively easy, reliable, wet crude goes out Mouthful temperature is high, and operating cost is low, corrosion-resistant, non-scaling, can stably provide petroleum pipeline heat tracing, wet crude dehydration, outer defeated former Oil heating or the technique of life heating source and equipment.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention；
In upper figure: direct-fired generator 1, atmospheric condenser 2, first throttle valve 3, recovered water low pressure heat exchanging evaporator 4, low pressure are inhaled Receive device 5, anti-corrosion water pump 6, second throttle 7, oil field extracted water a, wet crude b.
Detailed description of the invention
In conjunction with accompanying drawing 1, the invention will be further described:
A kind of deep-etching direct-fired heat pump technology of high salinity oil field extracted water that the present invention mentions, this technique is by following Flow implementation:
First, by oil field extracted water a by Water Tank send into recovered water low pressure heat exchanging evaporator 4 tube side, described Water Tank go out tank Gauge pressure is 0.06MPa, entrance wastewater discharge pumping plant pipeline after oil field extracted water heat release cooling: recovered water low pressure heat exchanging evaporator The shell side of 4 has low pressure clear water, enters low-pressure absorber 5 shell side after heat absorption vaporization, inhaled by the dense lithium-bromide solution that concentration is 60% Becoming dilute lithium-bromide solution that concentration is 52% after receipts and release heat, dilute lithium-bromide solution is delivered to straight after anti-corrosion water pump 6 is boosted Combustion generator 1；Concentration is that dilute lithium-bromide solution of 52% is heated to 140 to 180 DEG C of boilings, vapour in direct-fired generator 1 Water at atmospheric pressure steam after change delivers to atmospheric condenser 2 shell side through pipeline, and heat release is sent after condensing into water after first throttle valve 3 blood pressure lowering To the heat absorption vaporization of recovered water low pressure heat exchanging evaporator 4 shell side；
Wherein, concentration is that in direct-fired generator 1, heated boiling is concentrated into concentration to dilute lithium-bromide solution of 52% is 60%, dense Lithium-bromide solution delivers to low-pressure absorber 5 shell side after second throttle 7 blood pressure lowering；
It addition, wet crude b initially enters the tube side of low-pressure absorber 5, absorb oil field extracted water low pressure heat exchanging evaporator 4 and send here Low pressure water vapor condense liberated heat, then deliver to atmospheric condenser 2 and absorb the water at atmospheric pressure steam that direct-fired generator is sent here Condense liberated heat, reach dewatering process or outer defeated technique temperature required after deliver to multi-purpose station settling tank or the most defeated.
Above-mentioned oil field extracted water low pressure heat exchanging evaporator uses the graphite-pipe of anti-corrosion anti-scale or graphite block hole to be heat exchange unit Part.
A kind of deep-etching direct-fired heat-pump apparatus of high salinity oil field extracted water that the present invention mentions, including direct-fired generation Device 1, atmospheric condenser 2, first throttle valve 3, recovered water low pressure heat exchanging evaporator 4, low-pressure absorber 5, anti-corrosion water pump 6, second Choke valve 7, the outfan of described recovered water low pressure heat exchanging evaporator 4 is connected to low-pressure absorber 5 by pipeline, and input is even Connect oil field produced waterpipe, absorbed the tow taste heat of oil field extracted water by recovered water low pressure heat exchanging evaporator 4；Recovered water is low The low pressure clear water of pressure heat exchanging evaporator 4 inner chamber, enters low-pressure absorber 5 shell side after heat absorption vaporization；Described low-pressure absorber 5 Outfan is connected to direct-fired generator 1 by anti-corrosion water pump 6, and the bottom of direct-fired generator 1 is connected by second throttle 7 To low-pressure absorber 5, the top of direct-fired generator 1 is connected to atmospheric condenser 2, the bottom of atmospheric condenser 2 by pipeline It is connected to recovered water low pressure heat exchanging evaporator 4 by first throttle valve 3；Wet crude pipeline first passes around low-pressure absorber 5 Heat exchange coil is heated to 65 DEG C, and the heat exchange coil being then passed through atmospheric condenser 2 is heated to 78 DEG C, it is achieved heating for multiple times temperature raising.
After the present invention uses above-mentioned technological process, the low product of oil field extracted water produced after utilizing field joint stations oil-water separation Position heat energy and part of fuel heat energy, can realize by about 50 DEG C, wet crude is heated to more than 80 DEG C.Oil field extracted water direct combustion The low-temperature heat source of formula heat-pump apparatus is oil field extracted water, temperature, stability of flow, is a kind of preferably low-temperature heat source.With existing by force The corrosion direct-fired heat pump technology of high salinity oil field extracted water is compared three times and is improve heating efficiency, eliminates two flow processs and water Pump, solves corrosion and the scale problems of oil field extracted water.

Claims (2)

1. the direct-fired heat-pump apparatus of deep-etching high salinity oil field extracted water, is characterized in that: include direct-fired generator (1), atmospheric condenser (2), first throttle valve (3), recovered water low pressure heat exchanging evaporator (4), low-pressure absorber (5), anticorrosion water Pump (6), second throttle (7), the outfan of described recovered water low pressure heat exchanging evaporator (4) is connected to low pressure by pipeline and inhales Receiving device (5), input connects oil field produced waterpipe, absorbs oil field extracted water by recovered water low pressure heat exchanging evaporator (4) Tow taste heat；The low pressure clear water of recovered water low pressure heat exchanging evaporator (4) inner chamber, enters low-pressure absorber (5) after heat absorption vaporization Shell side；The outfan of described low-pressure absorber (5) is connected to direct-fired generator (1) by anti-corrosion water pump (6), direct-fired The bottom of raw device (1) is connected to low-pressure absorber (5) by second throttle (7), and the top of direct-fired generator (1) is by pipe Line is connected to atmospheric condenser (2), and the bottom of atmospheric condenser (2) is connected to recovered water low pressure by first throttle valve (3) and changes Hot vaporizer (4)；Wet crude pipeline first passes around the heat exchange coil of low-pressure absorber (5) and is heated to 65 DEG C, is often then passed through The heat exchange coil of pressure condenser (2) is heated to 78 DEG C, it is achieved heating for multiple times temperature raising.
The deep-etching direct-fired heat-pump apparatus of high salinity oil field extracted water the most according to claim 1, is characterized in that: described Oil field extracted water low pressure heat exchanging evaporator (4) use the graphite-pipe of anti-corrosion anti-scale or graphite block hole to be heat exchange element.
CN201610400981.8A 2014-06-27 2014-06-27 Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water Pending CN106052183A (en)

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CN201610400981.8A CN106052183A (en) 2014-06-27 2014-06-27 Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water

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CN201610400981.8A CN106052183A (en) 2014-06-27 2014-06-27 Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water
CN201410296117.9A CN104075481B (en) 2014-06-27 2014-06-27 A kind of deep-etching direct-fired heat pump technology of high salinity oil field extracted water and equipment

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CN201610400981.8A Pending CN106052183A (en) 2014-06-27 2014-06-27 Direct-fired type heat pump device for strong-corrosion hypersalinity oilfield produced water

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1081758A (en) * 1992-07-28 1994-02-09 张剑 Coal direct-burning lithium bromide refrigerator
CN1147618A (en) * 1995-10-09 1997-04-16 山东工业大学 Technological process for double-effect bromization absorption type refrigerator
CN1148156A (en) * 1995-10-16 1997-04-23 沈晓东 Multi-function, direct combustion type set for making cold water and warm water with two pump by utilizing lithium bromide
CN2929596Y (en) * 2006-07-17 2007-08-01 祝建军 Absorptive heat pump system for recovering waste heat from power plant, printing and dyeing, oil field and pharmaceutical industries
CN101344348A (en) * 2008-08-26 2009-01-14 王培军 Oil field produced water heat pump technique
JP2013167421A (en) * 2012-02-16 2013-08-29 Showa Denko Kk Heat transport apparatus and heat transport method
US8720216B1 (en) * 2013-10-01 2014-05-13 King Fahd University Of Petroleum And Minerals Hybrid aqua-ammonia and lithium bromide-water absorption chiller

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1081758A (en) * 1992-07-28 1994-02-09 张剑 Coal direct-burning lithium bromide refrigerator
CN1147618A (en) * 1995-10-09 1997-04-16 山东工业大学 Technological process for double-effect bromization absorption type refrigerator
CN1148156A (en) * 1995-10-16 1997-04-23 沈晓东 Multi-function, direct combustion type set for making cold water and warm water with two pump by utilizing lithium bromide
CN2929596Y (en) * 2006-07-17 2007-08-01 祝建军 Absorptive heat pump system for recovering waste heat from power plant, printing and dyeing, oil field and pharmaceutical industries
CN101344348A (en) * 2008-08-26 2009-01-14 王培军 Oil field produced water heat pump technique
JP2013167421A (en) * 2012-02-16 2013-08-29 Showa Denko Kk Heat transport apparatus and heat transport method
US8720216B1 (en) * 2013-10-01 2014-05-13 King Fahd University Of Petroleum And Minerals Hybrid aqua-ammonia and lithium bromide-water absorption chiller

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Application publication date: 20161026