CN205561576U - Thermoelectric cold confession system that allies oneself with of sintering low temperature residual heat resources more - Google Patents
Thermoelectric cold confession system that allies oneself with of sintering low temperature residual heat resources more Download PDFInfo
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- CN205561576U CN205561576U CN201620396383.3U CN201620396383U CN205561576U CN 205561576 U CN205561576 U CN 205561576U CN 201620396383 U CN201620396383 U CN 201620396383U CN 205561576 U CN205561576 U CN 205561576U
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a thermoelectric cold confession system that allies oneself with of sintering low temperature residual heat resources more, including sinter cooler, heat medium heat exchanger, cooling tower, ORC unit and hot water refrigerating unit. The sinter cooler includes high temperature cooling section and cryogenic cooling section, and the low temperature exhaust gas that the cryogenic cooling section produced delivers to the heat medium heat exchanger, and the sinter cooler mesa is delivered to through the draught fan to the cooling waste gas that the heat medium heat exchanger produced for hot -blast sintering, the heat medium that the heat medium heat exchanger produced has priority and is used for direct heat supply, secondly, as the heat source of ORC unit, once more, as hot water refrigerating unit's driving heat source.
Description
Technical field
This utility model relates to high efficiency of energy and utilizes field, particularly relates to a kind of waste heat resources in sintering process efficient
Reclaim the System and method for cascade utilization.
Background technology
Produce a large amount of residual heat resources during the cooling of hot sintering deposit to transfer to cool down in gas, and along cooling process
Respectively formed in, Low Temperature Thermal waste gas, wherein more than 300 DEG C (usually less than 450 DEG C) middle temperature waste gas residual heats
Part directly utilize, part by waste heat boiler produce middle pressure steam for heat supply or generating outside, a large amount of low temperature
(less than 300 DEG C) waste gas residual heat resource is diffused in air or surrounding enviroment, causes energy waste, environment
The unfavorable factors such as pollution, cost increase.In the long big typical process of flow process iron and steel flow process six, more than sintering circuit
The thermal resource response rate is minimum, and the most about 22%, far below industry average level 35%, sintering circuit difference product
It is that sintering circuit energy-saving field studies for a long period of time focus and concern side that position residual heat resources reclaim step by step with cascade utilization
To.
Patent 1 " waste heat resources in sintering process high efficiente callback with utilize device and method CN201110058524 "
Propose that " classification recovery with the core of cascade utilization technology is: by one section of cooler front end, two-step cooling
Being passed through waste heat boiler after waste gas removing dust, the steam of generation is used for generating electricity；By the three-stage cooling in the middle part of cooler
Waste gas returns to ignition furnace and sintering machine table top is respectively used to igniting combustion supporting and hot gas sintering；Temperature is higher
Sintering flue gas is dried for sinter mixture before being incorporated into ignition furnace ".There are two aspects and ask in this patented technology
Topic: cooler front end high-temp waste gas is used for Steam Recovery generating, the middle temperature in middle part cooling waste gas is used for weld point
Fire does not meets energy cascade utilization thought with gas saving, on the one hand with cooler front end high temperature cooling waste gas
(300-430 DEG C of different temperatures distribution) carries out steam-electric power, and energy conversion efficiency only 20% causes the energy
Waste；On the other hand, utilize middle temperature waste gas (150-200 DEG C) in the middle part of cooler to be sintered igniting, by
Low in its temperature, save high-grade energy coal gas limited.Meanwhile, the 5th section of sub-cooled waste gas is utilized
Continue cooling the 4th section and the 3rd section thinking the most appropriate have no successful implementation case, be primarily due to: (1)
Because of resistance be significantly increased, system air leakage rate causes greatly actual cannot implementing；(2) the 3rd, 4 sections of entrances are caused
EGT rises, and affects sintering machine cooling effect, is unfavorable for production assurance, puts the cart before the horse.
Patent 2 " residual heat resources in sintering process classification recovery and the method for cascade utilization and device thereof
CN200910187381 " propose " a kind of metallurgy sintered during residual heat resources classification recovery and step profit
Method, it is characterised in that: red-hot sintering deposit is encased in the tank body of a vertical closing, sintering
The temperature in ore deposit is 800 DEG C～950 DEG C；Then it is passed through normal temperature air, air mass flow and sintering from this tank base
The ratio of ore deposit treating capacity, it may be assumed that gas-solid ratio is 2000: 2500Nm3/t, makes red-hot sintering deposit at this tank body
Interior being fully contacted with air cools down, and the sintering deposit after cooling is discharged by tank base, and abundant with sintering deposit
The air carrying sintering deposit complete sensible heat after contact is then discharged from tank body top, and is passed through remaining after dedusting
Heat boiler produces steam, and the steam of production is incorporated to steam pipe system or generates electricity ".This patent is set up in novel burning
On the basis of the knot vertical cooling in ore deposit technique, the vertical cooling of sintering deposit is in theoretical research stage, does not the most also have
Successful story.
In sum, existing sintering process all uses ring type or belt cooling technique, does not has vertical cooling technique,
For existing sintering machine, the irrational place of current waste heat recovery or the problem of existence: (1) sintering waste heat is total
The body response rate is extremely low, and only about 22%.It is primarily due to: high temperature (750 DEG C) is burnt by sintering deposit cooling technique
Knot ore deposit residual heat resources become middle low temperature (450-80 DEG C) waste gas residual heat resource, and waste heat grade is the most on the low side.
(2) existing sintering waste heat recovery process only reclaims middle temperature (more than 300 DEG C) waste gas residual heat resource, more than low temperature
Heat directly discharge, is not recovered, causes energy waste；(3) sintering low temperature waste heat total resources is big, and burns
In tie region, heat user is few, and thermal source affects UTILIZATION OF VESIDUAL HEAT IN with not mating of user's request.
Utility model content
It is multi-joint that the technical problems to be solved in the utility model is to provide a kind of sintering low temperature waste heat resource thermoelectric cold
For system, it makes full use of sintering low temperature waste heat, it is achieved sintering low temperature waste heat thermoelectric cold multiple-supplying, meets not
Same user's request, increases substantially the sintering waste heat response rate.
This utility model combines the feature that sintering low temperature waste heat resource is big, user is few, according to energy cascade utilization
Thought, utilize low temperature exhaust heat to couple with heat user, power consumer, refrigeration consumer in region, it is achieved
Sintering low temperature waste heat thermoelectric cold multiple-supplying, can provide steam, hot water, hot blast, electric power, refrigeration etc. full simultaneously
Foot different user demands, thus the sintering waste heat response rate is greatly improved.
The technical scheme that this utility model solution existing issue is used is from the angle of system, in conjunction with residual heat resources
" measure " and the feature of " matter ", according to " it is used to the greatest extent for treatment in accordance with local conditions, heat；Temperature boil on the nape opposite the mouth, cascade utilization "
General thought goes out a kind of sintering low temperature waste heat resource thermoelectric cold multi-generation system, including: there is heat recovery tight
Gather the cooler arranged, forms integrated with production technology efficient recovery system the most step by step, reclaim the most step by step
Hot blast, heating agent (such as low-pressure steam, hot water etc.)；Produce hot blast and save the heat of sinter cooler fuel
Air circulating system；Heating agent is used for organic working medium rankine cycle (ORC) electricity generation system；Condensed water or low temperature
Hot-water air-conditioning refrigeration substitutes electricity air-conditioning or enters heating system.
This utility model reclaims low temperature exhaust heat by middle heating agent (such as hot water, conduction oil etc.), uses heat
When water is as heating agent, pressure fixing system is set, variable working condition thermal source is become stable energy output, it is simple to follow-up
Utilize.
For solving above-mentioned technical problem, the technical solution of the utility model is:
A kind of sintering low temperature waste heat resource thermoelectric cold multi-generation system, including sinter cooler, heating agent heat exchange
Device, ORC unit and water-heating cooling unit, described sinter cooler is connected with described heating-medium heat exchanger,
Described heating-medium heat exchanger is connected with described ORC unit, described ORC unit and described water-heating cooling unit
Connect；
Described sinter cooler includes high temperature cooling section and sub-cooled section, and described high temperature cooling section produces
High temperature cooling waste gas is preferentially recycled to described sinter cooler, and the igniting for described sinter cooler helps
Combustion, secondly, the high temperature cooling waste gas that described high temperature cooling section produces delivers to waste heat boiler, for waste heat boiler
Producing middle pressure steam, the cooling waste gas that waste heat boiler produces is led back to described sintering deposit by circulating fan and cools down
Machine, is used for cooling down sintering deposit, and the low temperature waste gas that described sub-cooled section produces delivers to described heating-medium heat exchanger,
The cooling waste gas that described heating-medium heat exchanger produces delivers to sinter cooler table top by air-introduced machine, for hot blast
Sintering, the preferential direct heating of heating agent that described heating-medium heat exchanger produces, secondly, as described ORC unit
Thermal source, again, as the driving heat source of described water-heating cooling unit.
It is also preferred that the left described ORC unit includes the first vaporizer, preheater, turbine generators, regenerator
With the first condenser, described first vaporizer is connected with described turbine generators and described preheater respectively, institute
State turbine generators to be connected with the gas access of described regenerator, described in the gas outlet of described regenerator first
The entrance of condenser connects, and the outlet of described first condenser is connected with the liquid inlet of described regenerator, institute
The liquid outlet stating regenerator is connected with described preheater；
Described heating-medium heat exchanger provides thermal source to described preheater and described first vaporizer, heats described preheating
Organic working medium in device and described first vaporizer, described turbine generators is from described first vaporizer
Exporting electric energy under the expansion work of gaseous state organic working medium, the gaseous state entered from the gas access of described regenerator has
The liquid organic working medium that the heating of machine working medium enters from the liquid inlet of described regenerator, described first condenser will
Gaseous state organic working medium from the gas outlet of regenerator is condensed into liquid organic working medium, and a cooling tower is to described
Cooling water needed for first condenser offer.
It is also preferred that the left described water-heating cooling unit includes generator, absorber, the second condenser and the second evaporation
Device, described generator is connected with described second condenser respectively, described absorber and described ORC unit even
Connecing, described second condenser is connected with described second vaporizer and described ORC unit respectively, and described second
Vaporizer is connected with described absorber；
Higher pressure refrigerant gas is condensed into high pressure refrigerant liquid by described second condenser, and described vaporizer will
Coming from the high-pressure refrigerant solution evaporation refrigeration of described second condenser, the absorbent in described absorber is inhaled
Receive the low pressure refrigerant gas from described vaporizer, form the solution rich in cold-producing medium, described ORC machine
Group provides thermal source to described generator, described generator by from described second vaporizer rich in cold-producing medium
Solution heats so that solution is restored to original composition, needed for a cooling tower provides described absorber
Cooling water.
Further, a kind of sintering low temperature waste heat resource thermoelectric cold multi-generation system also includes that constant pressure supply water fills
Putting, described constant pressure water compensation apparatus is connected with described heating-medium heat exchanger, and described constant pressure water compensation apparatus is to described heating agent
Heat exchanger moisturizing.
Further, described cooling tower provides cold to described ORC unit and described water-heating cooling unit simultaneously
But water.
Described sinter cooler uses ring type or belt cooling technique.
Described sinter cooler is the integrated design.
The Advantageous Effects that the technical scheme that this utility model is used is brought is:
Sinter cooler integrated design improves heat exchange efficiency and increases the photothermal recovery of sintering deposit；
Use multi-heat source ORC generation technology to add low-grade energy and utilize channel, improve the response rate；
Utilize the steam condensate (SC) after ORC generating or heating agent waste heat to freeze, substitute electric refrigeration,
Realize cascade utilization；
Maximized by waste heat recovery efficiency, it is possible to substantially reduce sintering circuit energy consumption, save the energy, reduce
Discharge, produces good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is the sintering low temperature waste heat resource thermoelectric cold multi-generation system signal of this utility model one embodiment
Figure；
In figure, 201-hot water heat exchanger；202-air-introduced machine；203-water circulating pump；204-preheater；205-
First vaporizer；206-working medium pump；207-the first condenser；208-regenerator；209-turbine generators；
210-organic working medium；211-water-heating cooling unit；301-constant pressure water compensation apparatus.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing to this
Each embodiment of utility model is explained in detail.
See Fig. 1, a kind of sintering low temperature waste heat resource thermoelectric cold multi-generation system, including sinter cooler,
Heating-medium heat exchanger 201, cooling tower, ORC unit and water-heating cooling unit 211, sinter cooler and heat
Matchmaker's heat exchanger 201 connects, and heating-medium heat exchanger 201 is connected with ORC unit, ORC unit and water-heating cooling
Unit 211 connects；
It is cold that a part for the high temperature cooling waste gas of 300-450 DEG C of sinter cooler generation is recycled to sintering deposit
But machine, for the igniting combustion supporting of sinter cooler, the high temperature of 300-450 DEG C of sinter cooler generation
The remainder of cooling waste gas delivers to waste heat boiler, produces middle pressure steam for waste heat boiler, and waste heat boiler produces
Raw cooling waste gas is led back to sinter cooler by circulating fan, is used for cooling down sintering deposit, and sintering deposit is cold
But the middle sub-cooled waste gas of less than 300 DEG C of machine generation delivers to heating-medium heat exchanger 201, heating-medium heat exchanger 201
The cooling waste gas produced delivers to sinter cooler table top, for hot gas sintering by air-introduced machine 202.Heating agent
The preferential direct heating of the heating agent (such as hot water) that heat exchanger 201 produces, secondly, as ORC unit
Thermal source, again, as the driving heat source of water-heating cooling unit.
ORC unit includes the first vaporizer 205, preheater 204, turbine generators 209, regenerator 208
With the first condenser 207, the first vaporizer 205 is connected with turbine generators 209 and preheater 204 respectively,
Turbine generators 209 is connected with the gas access of regenerator 208, the gas outlet of regenerator 208 and first
The entrance of condenser 207 connects, and the outlet of the first condenser 207 is by working medium pump 206 and regenerator 208
Liquid inlet connect, the liquid outlet of regenerator 208 is connected with preheater 204；
Heating-medium heat exchanger 201 provides thermal source to preheater 204 and the first vaporizer 205, heats preheater
204 and first organic working medium 210 in vaporizer 205, from the organic work of gaseous state of the first vaporizer 205
Matter 210 is to turbine generators 209 expansion work so that turbine generators 209 exports electric energy, from regenerator
The gaseous state organic working medium 210 that the gaseous state entrance of 208 enters heats the liquid entrance entrance from regenerator 208
Liquid organic working medium 210, the first condenser 207 is by organic for the gaseous state of the gas outlet from regenerator 208
Working medium 2 10 is condensed into liquid organic working medium 210, and the outlet of the first condenser 207 will by working medium pump 206
It is sequentially output to regenerator 208, preheater 204 and the first vaporizer after liquid organic working medium 210 boosting
205, a cooling tower provides required cooling water to the first condenser 207.
Water-heating cooling unit 211 includes generator, absorber, the second condenser and the second vaporizer, occurs
Device is connected with the second condenser respectively, absorber and ORC unit connect, and the second condenser is respectively with second
Vaporizer and ORC unit connect, and the second vaporizer is connected with absorber；
Higher pressure refrigerant gas is condensed into high pressure refrigerant liquid by the second condenser, and vaporizer will come from
The high-pressure refrigerant solution evaporation refrigeration of two condensers, the absorbent in absorber absorbs the low of flash-pot
Compression refrigerant gas, is formed rich in the solution of cold-producing medium, generator by from the second vaporizer rich in refrigeration
The solution heating of agent so that solution is restored to original composition, a cooling tower provides cooling water cooling to inhale
Receive device.
A kind of sintering low temperature waste heat resource thermoelectric cold multi-generation system also includes constant pressure water compensation apparatus 301, level pressure
Water replanishing device 301 is connected with heating-medium heat exchanger 201 by water circulating pump 203, constant pressure water compensation apparatus 301
To heating-medium heat exchanger 201 moisturizing.
Cooling tower provides required cooling water to ORC unit and water-heating cooling unit 211 simultaneously.
Sinter cooler uses ring type or belt cooling technique.
Sinter cooler is the integrated design.
Work process of the present utility model:
Sintering deposit segmentation in sinter cooler is cooled down by air, obtains the cooling waste gas of different temperatures, wherein
A part for the high temperature cooling waste gas of 300-450 DEG C is recycled to described sinter cooler, for described sintering
The igniting combustion supporting of ore deposit cooler, the remainder of the high temperature cooling waste gas of 300-450 DEG C delivers to waste heat boiler,
Produce middle pressure steam for waste heat boiler, and the cooling waste gas that waste heat boiler produces leads back sintering deposit cooling
Machine, is used for cooling down sintering deposit, and the middle sub-cooled waste gas of less than 300 DEG C delivers to heating-medium heat exchanger 201, heat
The cooling waste gas that matchmaker's heat exchanger 201 produces is delivered to sinter cooler table top by air-introduced machine 202, for hot blast
Sintering.The preferential direct heating of the heating agent (such as hot water) that heating-medium heat exchanger produces, secondly, as ORC
The thermal source of unit, again, as the driving heat source of water-heating cooling unit；
Further, the heating agent that heating-medium heat exchanger 201 produces, as thermal source, heats preheater 204 and first
Organic working medium 210 in vaporizer 205, enters turbine generators 209 after the heated evaporation of organic working medium 210
Interior expansion work drives turbine generators 209 to export electric energy, discharges after turbine generators 209 decrease temperature and pressure
Organic steam enter the first condenser before, enter regenerator 208 heating working medium pump liquid organic working medium
210, to improve system thermal efficiency, a cooling tower carry Cooling Water give the first condenser, through regenerator 208
Organic working medium 210 enter the first condenser and be condensed into liquid organic working medium 210, liquid organic working medium 210
Again heated and steaming in regenerator 208 enters preheater 204 and vaporizer after being boosted by working medium pump again
Sending out, form ORC circulating generation, further, heating agent is through ORC unit vaporizer machine preheater 204
Can also direct heating after heat release；
Further, ORC unit provides thermal source to generator, and higher pressure refrigerant gas is at the second condenser
Middle condensation, the high pressure refrigerant liquid of generation is freezed to evaporator evaporation after throttling, in absorber, inhales
Receive agent and absorb the low pressure refrigerant gas of flash-pot, form the solution rich in cold-producing medium, this solution is used
Being pumped into generator, the cold-producing medium in heated rear solution is evaporated again, enters the second condenser.Separately
On the one hand, the solution of generator is restored to original composition, becomes and have absorption after cooled, throttling
The absorbing liquid of ability, enters absorber, absorbs the low pressure refrigerant of flash-pot.In absorption process adjoint
Release absorbs heat, in order to ensure that absorb is smoothed out, cooling tower carries Cooling Water to cool down absorbing liquid.
Constant pressure water compensation apparatus 301 is set in closed cycle water pump 203 import, it is ensured that closed cycle water is in heating agent heat exchange
It is not vaporized in device 201.
Above-described detailed description of the invention, enters the purpose of this utility model, technical scheme and beneficial effect
Go further description, it should be understood that and the foregoing is only specific embodiment party of the present utility model
Formula, is not limited to this utility model, all within spirit of the present utility model and principle, is done
Any modification, equivalent substitution and improvement etc., within should be included in protection domain of the present utility model.
Claims (6)
1. a sintering low temperature waste heat resource thermoelectric cold multi-generation system, it is characterised in that: include sintering deposit
Cooler, heating-medium heat exchanger, ORC unit and water-heating cooling unit, described sinter cooler is with described
Heating-medium heat exchanger connect, described heating-medium heat exchanger is connected with described ORC unit, described ORC unit and
Described water-heating cooling unit connects；
Described sinter cooler includes high temperature cooling section and sub-cooled section, and described high temperature cooling section produces
High temperature cooling waste gas is preferentially recycled to described sinter cooler, and the igniting for described sinter cooler helps
Combustion, secondly, the high temperature cooling waste gas that described high temperature cooling section produces delivers to waste heat boiler, for waste heat boiler
Producing middle pressure steam, the cooling waste gas that waste heat boiler produces is led back to described sintering deposit by circulating fan and cools down
Machine, is used for cooling down sintering deposit, and the low temperature waste gas that described sub-cooled section produces delivers to described heating-medium heat exchanger,
The cooling waste gas that described heating-medium heat exchanger produces delivers to sinter cooler table top by air-introduced machine, for hot blast
Sintering, the preferential direct heating of heating agent that described heating-medium heat exchanger produces, secondly, as described ORC unit
Thermal source, again, as the driving heat source of described water-heating cooling unit.
2. sintering low temperature waste heat resource thermoelectric cold multi-generation system as claimed in claim 1, its feature exists
In: described ORC unit includes that the first vaporizer, preheater, turbine generators, regenerator and first are cold
Condenser, described first vaporizer is connected with described turbine generators and described preheater respectively, and described turbine is sent out
Motor is connected with the gas access of described regenerator, the first condenser described in the gas outlet of described regenerator
Entrance connects, and the outlet of described first condenser is connected with the liquid inlet of described regenerator, described regenerator
Liquid outlet be connected with described preheater；
Described heating-medium heat exchanger provides thermal source to described preheater and described first vaporizer, heats described preheating
Organic working medium in device and described first vaporizer, described turbine generators is from described first vaporizer
Exporting electric energy under the expansion work of gaseous state organic working medium, the gaseous state entered from the gas access of described regenerator has
The liquid organic working medium that the heating of machine working medium enters from the liquid inlet of described regenerator, described first condenser will
Gaseous state organic working medium from the gas outlet of regenerator is condensed into liquid organic working medium, and a cooling tower is to described
Cooling water needed for first condenser offer.
3. sintering low temperature waste heat resource thermoelectric cold multi-generation system as claimed in claim 1, its feature exists
In: described water-heating cooling unit includes generator, absorber, the second condenser, the second vaporizer and cooling
Tower, described generator is connected with described second condenser respectively, described absorber and described ORC unit even
Connecing, described second condenser is connected with described second vaporizer and described ORC unit respectively, and described second
Vaporizer is connected with described absorber；
Higher pressure refrigerant gas is condensed into high pressure refrigerant liquid by described second condenser, and described vaporizer will
Coming from the high-pressure refrigerant solution evaporation refrigeration of described second condenser, the absorbent in described absorber is inhaled
Receive the low pressure refrigerant gas from described vaporizer, form the solution rich in cold-producing medium, described ORC machine
Group provides thermal source to described generator, described generator by from described second vaporizer rich in cold-producing medium
Solution heats so that solution is restored to original composition, needed for described cooling tower provides described absorber
Cooling water.
4. sintering low temperature waste heat resource thermoelectric cold multi-generation system as claimed in claim 1, its feature exists
In: include that constant pressure water compensation apparatus, described constant pressure water compensation apparatus are connected with described heating-medium heat exchanger, described level pressure
Water replanishing device is to described heating-medium heat exchanger moisturizing.
5. sintering low temperature waste heat resource thermoelectric cold multi-generation system as claimed in claim 1, its feature exists
In: include that a cooling tower, described cooling tower are connected with described ORC unit and described water-heating cooling unit,
Described cooling tower carries Cooling Water to described ORC unit and described water-heating cooling unit.
6. sintering low temperature waste heat resource thermoelectric cold multi-generation system as claimed in claim 1, its feature exists
In: described sinter cooler uses ring type or belt cooling technique.
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| CN201620396383.3U CN205561576U (en) | 2016-05-04 | 2016-05-04 | Thermoelectric cold confession system that allies oneself with of sintering low temperature residual heat resources more |
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| CN201620396383.3U CN205561576U (en) | 2016-05-04 | 2016-05-04 | Thermoelectric cold confession system that allies oneself with of sintering low temperature residual heat resources more |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106369866A (en) * | 2016-09-20 | 2017-02-01 | 东北石油大学 | Waste steam directly absorbed type double-effect lithium bromide heat pump system and working method thereof |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106369866A (en) * | 2016-09-20 | 2017-02-01 | 东北石油大学 | Waste steam directly absorbed type double-effect lithium bromide heat pump system and working method thereof |
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