CN202757471U - Motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system - Google Patents
Motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system Download PDFInfo
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- CN202757471U CN202757471U CN2012203468240U CN201220346824U CN202757471U CN 202757471 U CN202757471 U CN 202757471U CN 2012203468240 U CN2012203468240 U CN 2012203468240U CN 201220346824 U CN201220346824 U CN 201220346824U CN 202757471 U CN202757471 U CN 202757471U
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Abstract
The utility model relates to a motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system, and belongs to the technical field of converter waste heat utilization. The motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system comprises a finned tube waste heat boiler, a main motor, a back-pressure steam turbine and a heat exchange condenser, wherein an exhaust fan is connected with the main motor through a coupling. The back-pressure steam turbine is connected with the exhaust fan through a mechanical-electrical integration clutch. A combustion settling chamber is connected with the finned tube waste heat boiler through a heat-insulation flue, the finned tube waste heat boiler is connected with the back-pressure steam turbine through a steam pipeline, and the back-pressure steam turbine is connected with the heat exchange condenser. The heat exchange condenser is connected with the finned tube waste heat boiler through a return water pipe. The motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system is simple, compact and reasonable in structure, saves energy, reduces cost, is stable in working state, high in waste heat utilization rate, little in pollution to the environment, low in invest cost and low in use maintenance frequency, and reduces energy losses.
Description
Technical field
The utility model relates to a kind of motor steam turbine mixing and drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, belongs to converter UTILIZATION OF VESIDUAL HEAT IN technical field.
Background technology
Can produce a large amount of waste heats in the industrial production.Particularly in industries such as iron and steel, coloured, chemical industry, cement, building materials, oil and petrochemical industry, light industry, coals, these residual heat resources account for 17% ~ 67% of its fuel consumption total amount, and the rate of recovery of waste heat data can reach 60%.
About more than 600 of existing 40 ~ 100 tons of converters in the whole nation, cogeneration recovery utilization rate less than 20%, application percentage is on the low side.During the converter smelting stainless steel, the waste heat energy of its generation is enough to generate electricity, and general waste heat power generation equipment comprises boiler, steam turbine, condenser and feed pump.Working medium is constantly carried out isobaric heating, adiabatic expansion, isobaric heat release and adiabatic compression Four processes in heat power equipment, make heat energy constantly be converted into mechanical energy, and then drives the generating set generating.In energy conversion process, can cause a large amount of losses to heat, reduce the utilization rate of energy.The cost of Heat Treatment system is also higher, and maintenance cost is large.Owing to contain a lot of dust in the waste gas of cogeneration, therefore the waste gas of discharging can be to environment.
In China, the high-temp waste gas waste heat utilize situation better, such as dry coke quenching waste heat recovery, sintering mine sensible heat waste heat recovery, blast-furnace top gas recovery turbine generating etc.The recovery utilization rate of middle low temperature waste gas waste heat is then lower, and pure low-temperature cogeneration technology can take full advantage of the steel and iron industry waste heat, also is the domestic direction of giving priority at present.It is working medium that pure low-temperature cogeneration technology adopts water, and the heat that is lower than 300 ℃ flue gas is difficult to reclaim.
The tradition afterheat generating system is electric energy with thermal power transfer, and then converts electrical energy into kinetic energy, understands off-energy in conversion process, has reduced the utilization rate of heat energy, has increased entreprise cost.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide a kind of motor steam turbine to mix and drag converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, the hot flue gas that utilizes converter to produce produces steam-electric power, simultaneously hot flue gas is carried out dedusting discharging, energy-conserving and environment-protective.
According to the technical scheme that the utility model provides, the mixing of motor steam turbine drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system mainly comprises variable flow type fume hood of roof, spark collection-type low-pressure impulse sack cleaner, aiutage, motor-driven carrier, water-cooled close arranging pipe suction inlet cover, smoke deflector enclosure, combustion settling chamber, fin pipe waste heat boiler, main motor, exhaust blower, back pressure turbine and heat exchange condenser.
The variable flow type fume hood of roof forms a pyramid by a plurality of enclosings, and cone wallboard inclination angle scope is 45 ~ 60 ℃.
Described variable flow type fume hood of roof connects the spark collection-type low-pressure impulse sack cleaner by the low-temperature steel pipeline, is provided with mixer selector valve at the air inlet of spark collection-type low-pressure impulse sack cleaner.Described low-temperature steel pipeline is provided with electrically operated valve.Described spark collection-type low-pressure impulse sack cleaner connects exhaust blower, and exhaust blower connects aiutage.On exhaust blower, connect main motor by shaft coupling.The smoke deflector enclosure is set below the variable flow type fume hood of roof, and described smoke deflector enclosure adopts metal framework, liner sound insulation deadener.Hang water-cooled close arranging pipe suction inlet cover on the described motor-driven carrier.A plurality of water cooled pipelines of dense arrangement are set in the described water-cooled close arranging pipe suction inlet cover.
Described water-cooled close arranging pipe suction inlet cover rear end connects combustion settling chamber, and combustion settling chamber adopts high-alumina brick to be made into arch.Described combustion settling chamber connects fin pipe waste heat boiler by the heat-insulation and heat-preservation flue.Described fin pipe waste heat boiler connects back pressure turbine by the steam pipeline, and back pressure turbine connects the heat exchange condenser.Described heat exchange condenser connects fin pipe waste heat boiler by return pipe.Described return pipe is provided with water pump.Connect cooling tower on the described heat exchange condenser, be provided with water-circulating pump between heat exchange condenser and the cooling tower.Described fin pipe waste heat boiler connects the spark collection-type low-pressure impulse sack cleaner by the low-temperature steel pipeline, is provided with booster fan between fin pipe waste heat boiler and the spark collection-type low-pressure impulse sack cleaner.Described back pressure turbine is connected with exhaust blower by the electromechanical integration clutch.
Compared with the prior art the utility model has the following advantages: the utility model is simple, compact and reasonable for structure; Utilize back pressure turbine to drive exhaust blower and carry out dedusting, saved energy, reduced cost; Keep the back pressure turbine steady-working state by main motor; The utilization rate of waste heat is high, and the heat that is lower than 300 ℃ flue gas is utilized effectively, and dust greatly reduces in the waste gas of discharging, and is little to the pollution of environment; Cost of investment is few, and the working service amount is little; Waste heat directly is converted to kinetic energy, has reduced energy loss.
Description of drawings
Fig. 1 is the utility model structural representation.
Description of reference numerals: 1-variable flow type fume hood of roof, 2-low-temperature steel pipeline, the 3-mixer selector valve, 4-spark collection-type low-pressure impulse sack cleaner, the 5-aiutage, the 6-motor-driven carrier, 7-water-cooled close arranging pipe suction inlet cover, 8-smoke deflector enclosure, the 9-combustion settling chamber, 10-heat-insulation and heat-preservation flue, the 11-fin pipe waste heat boiler, 12-water vapour pipeline, the 13-electrically operated valve, the 14-booster fan, 15-master's motor, the 16-shaft coupling, the 17-exhaust blower, 18-electromechanical integration clutch, the 19-back pressure turbine, 20-heat exchange condenser, the 21-cooling tower, the 22-water-circulating pump, the 23-water pump, the 24-return pipe.
The specific embodiment
Following the utility model is further described in connection with the embodiment in the accompanying drawing:
The utility model mainly comprises variable flow type fume hood of roof 1, spark collection-type low-pressure impulse sack cleaner 4, aiutage 5, motor-driven carrier 6, water-cooled close arranging pipe suction inlet cover 7, smoke deflector enclosure 8, combustion settling chamber 9, fin pipe waste heat boiler 11, main motor 15, exhaust blower 17, back pressure turbine 19 and heat exchange condenser 20.
Variable flow type fume hood of roof 1 is arranged on the interior factory building roof truss of converter top scope, forms a pyramid by a plurality of enclosings, and cone wallboard inclination angle is take 45 ~ 60 ℃ as good.Be provided with the water conservancy diversion speeding up plate in variable flow type fume hood of roof 1, at four angles movable parallel linkage speed adjusting plate be housed, water conservancy diversion speeding up plate and movable parallel linkage speed adjusting plate are used for improving variable flow type fume hood of roof 1 section and inhale the speed of catching flue dust.The Main Function of variable flow type fume hood of roof 1 is to store converter a large amount of dust-laden thermal current flue dust that moment produces in the processes such as reinforced and tapping.Described variable flow type fume hood of roof 1 connects spark collection-type low-pressure impulse sack cleaners 4 by low-temperature steel pipeline 2, is provided with mixer selector valve 3 at the air inlet of spark collection-type low-pressure impulse sack cleaner 4.Described low-temperature steel pipeline 2 is provided with electrically operated valve 13, and anti-corrosive paint on low-temperature steel pipeline 2 surface brush is for the protection of pipeline.Described mixer selector valve 3 to the requirement of temperature, is directly sneaked into cold wind to high-temperature flue gas according to system and cleaner, to reach the purpose of flue gas cool-down, protects whole dust pelletizing system.Described spark collection-type low-pressure impulse sack cleaner 4 is exclusively used in the purification of the high-temperature flue gas of AOD stove, electric furnace, converter, mineral hot furnace, rotary kiln etc.After high-temperature flue gas entered spark collection-type low-pressure impulse sack cleaner 4, process grid frame plate was first going in the ash bucket that puts out and coarse granule once is deposited to the below with remaining spark.Described grid frame plate welds every box plate mutually with the air channel, through symmetrical expression deflector in each inlet plenum medium grain again under the secondary settlement and fall in the ash bucket.The gas that enters forms conic section and flows to, and makes each chamber flow velocity evenly and plays cushioning effect.Described symmetrical expression deflector is into Wave curved shape diaphragm, and its flue gas is little by resistance, effectively reduces the temperature of flue gas.Air after the purification enters in the air-purifying chamber on spark collection-type low-pressure impulse sack cleaner top, and passes through the off-line valve to the chamber, exhaust passage, discharges at last the spark collection-type low-pressure impulse sack cleaner.Dust on filter bag reaches certain thickness, when dust remover resistance is increased to setting value, controlling one of them chamber off-line valve with PLC closes and opens pulse valve again, compressed air is through injection tube in the gas bag, nozzle is made injection, vibration and the blowback filter bag of moment to filter bag, the dust layer fragmentation is come off, and dust leaves filter bag, falls into ash bucket.Ash-removal effect is good like this, does not produce contrary air-flow.The box plate of whole device is made with swaging plate and reinforcement, and simultaneously each chamber separation separates, and support increases its bulk strength with the framework scissors that the triangle inclined strut cross force causes, and particularly meets the blast requirement on the anti-intensity of tumbling.
The air outlet of described spark collection-type low-pressure impulse sack cleaner 4 connects aiutage 5 by smoke discharging pipe, and smoke discharging pipe is provided with exhaust blower 17, will enter aiutage 5 through the waste gas of dedusting by exhaust blower 17, then enters atmosphere.Described exhaust blower 17 connects main motor 15 by shaft coupling 16.
Smoke deflector enclosure 8 is set below variable flow type fume hood of roof 1, smoke deflector enclosure 8 adopts the lined sound insulation deadener of metal framework to make, the generations flue gases such as, tapping reinforced to converter and melting lead and enter variable flow type fume hood of roof 1, and arc light, noise and the radiation etc. of converter generation when smelting are effectively absorbed and block.
The motor-driven carrier 6 that can move is set above the outlet of converter, hangs water-cooled close arranging pipe suction inlet cover 7 on the motor-driven carrier 6.Described water-cooled close arranging pipe suction inlet cover 7 interior a plurality of water cooled pipelines that dense arrangement is set, its spread geometry is different in nature tube shape.This structure is sneaked into cold wind and is increased so that fire door CO burning is more abundant, and heat-transfer capability is large, and the water route is clear and definite, and is stable.
Described water-cooled close arranging pipe suction inlet cover 7 rear ends connect combustion settling chamber 9, and combustion settling chamber 9 adopts high-alumina bricks to be made into arch, combustion settling chamber 9 in by the full-dry method burn off toxic and harmful bioxin that burns.Adopt full-dry method to produce carbon dioxide content and will reduce about 25% than full wet method generation carbon dioxide content, little to the pollution of environment.Adopting full-dry method to obtain is dried flue dust, and equipment is not had corrosiveness, has prolonged the service life of equipment.
Described combustion settling chamber 9 connects fin pipe waste heat boiler 11 by heat-insulation and heat-preservation flue 10.Described fin pipe waste heat boiler 11 comprises finned pipe type steam generator, water preheater and steam superheater, the fin tube type steam generator adopts the high-frequency welding finned tube as heat exchange element, come augmentation of heat transfer by fin, the package unit heat transfer efficiency is high, compact equipment, hot side liquid flow resistance is little.Enter the fin pipe waste heat boiler 11 rear and living heat exchanges of steeping in water for reconstitution from combustion settling chamber 9 hot flue gas out, thereby produce steam.
Described fin pipe waste heat boiler 11 connects back pressure turbine 19 by steam pipeline 12, and back pressure turbine 19 connects heat exchange condenser 20.Described heat exchange condenser 20 connects fin pipe waste heat boiler 11 by return pipe 24.Described return pipe 24 is provided with water pump 23.Steam in fin pipe waste heat boiler 11 arrives in the back pressure turbine 19 by steam pipeline 12, is converted to electric energy by back pressure turbine 19.Waste gas after the acting is cooled to water by heat exchange condenser 20.Connect cooling tower 21 on the described heat exchange condenser 20, be provided with water-circulating pump 22 between heat exchange condenser 20 and the cooling tower 21.Out steam is blended in the cooling tower 21 and carries out heat exchange with water in the back pressure turbine 19, makes used heat be transferred to air and distributes into atmosphere.Water-circulating pump 22 is so that water flows out heat exchange condenser 20.Then get in the fin pipe waste heat boiler 11 by the water pump 23 on the return pipe and again circulate.
Described fin pipe waste heat boiler 11 connects spark collection-type low-pressure impulse sack cleaner 4 by low-temperature steel pipeline 2, is provided with booster fan 14 between fin pipe waste heat boiler 11 and the spark collection-type low-pressure impulse sack cleaner 4.Booster fan 14 is so that produce negative pressure in the low-temperature steel pipeline 2, and the waste gas in the suction fin pipe waste heat boiler 11 enters spark collection-type low-pressure impulse sack cleaner 4 and carries out dedusting.
Described back pressure turbine 19 is connected with exhaust blower 17 by electromechanical integration clutch 18.Back pressure turbine 19 can steady operation when waste heat is enough, drives exhaust blower 17 work.When waste heat was not enough, back pressure turbine 19 can not steady operation, and this moment, main motor 15 was opened automatically, drove exhaust blower 17 and back pressure turbine 19 is worked, so that back pressure turbine 19 remains steady-working state.Simultaneously, utilize back pressure turbine 19 to drive exhaust blower 17 work, saved energy.Back pressure turbine 19 adopts axial-flow turbine, and rotating speed can reach 6500r/min.The turbine housing material is generally carbon steel, and blade is steel alloy, and axle is the high-grade alloy steel manufacturing.Adopt forced lubrication bearing or graphite bearing, turbine internal efficiency about 70%.
At Converter Oxigen Blowing gas, reinforced, during tapping, flue gas enters low-temperature steel pipeline 2 and then to spark collection-type low-pressure impulse sack cleaner 4, arrives aiutage 5 by exhaust blower 17 again by variable flow type fume hood of roof 1.When converter is normally smelted, at first motor-driven carrier 6 and water-cooled close arranging pipe suction inlet cover 7 are opened, aim at fire door, produce suction function by booster fan 14, the high warm flue dust of fire door will be inhaled in the water-cooled close arranging pipe suction inlet cover 7.By heat-insulation and heat-preservation flue 10, enter in the fin pipe waste heat boiler 11, produce and collect saturated vapor.Be discharged in the spark collection-type low-pressure impulse sack cleaner 4 by booster fan 14, enter aiutage 5 by exhaust blower 17 again.
Hot flue dust enters fin pipe waste heat boiler 11, by the heat exchange convection current heat energy is passed to water, reaches boiling point and vaporization after water is heated, and the water of having vaporized enters back pressure turbine 19.The back pressure turbine 19 of High Rotation Speed drives exhaust blower 17 by electromechanical integration clutch 18.Weary gas after the acting flows out from back pressure turbine 19 outlet, enters that heat exchange condenser 20 is interior to be cooled to liquid with it, is compressed in the fin pipe waste heat boiler 11 by water-circulating pump 22 and evaporates, and second takes turns the vaporization circulation.
Because of converter smelting process uncertain factor height, the characteristics such as temperature, flowed fluctuation is large, the political reform scope is large, cause like this converter waste heat for generating steam amount fluctuation large, when back pressure turbine 19 rotating speeds less than main motor speed 85% the time, electromechanical integration clutch 18 separates back pressure turbine 19 with exhaust blower 17.Main motor 15 starts by the electric energy of power plant simultaneously, makes exhaust blower 17 work.When back pressure turbine 19 rotating speeds equaled main motor 15 rotating speed, electromechanical integration clutch 18 was incorporated into back pressure turbine 19 mutually with exhaust blower 17.This moment, main motor 15 quit work, and back pressure turbine 19 drags exhaust blower 17 work.
Hot flue dust from converter out, its temperature is about 1550 ℃, transform the high temperature saturated vapor by thermal convection current and heat radiation principle, drive back pressure turbine with the high temperature saturated vapor, make the back pressure turbine High Rotation Speed directly drag the dedusting main air blower simultaneously, just do not need to generate electricity to the power supply of dedusting main air blower with generator, do not need the electric energy of power plant to come drive motor yet, avoided like this energy loss in the conversion process of energy.
Claims (10)
1. a motor steam turbine mixing drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, comprise variable flow type fume hood of roof (1), spark collection-type low-pressure impulse sack cleaner (4), aiutage (5), motor-driven carrier (6), water-cooled close arranging pipe suction inlet cover (7), smoke deflector enclosure (8), combustion settling chamber (9) and exhaust blower (17), variable flow type fume hood of roof (1) connects spark collection-type low-pressure impulse sack cleaner (4) by low-temperature steel pipeline (2), in variable flow type fume hood of roof (1) lower end smoke deflector enclosure (8) is set; Described spark collection-type low-pressure impulse sack cleaner (4) connects exhaust blower (17), and exhaust blower (17) connects aiutage (5); Hang water-cooled close arranging pipe suction inlet cover (7) on the described motor-driven carrier (6), water-cooled close arranging pipe suction inlet cover (7) rear end connects combustion settling chamber (9), it is characterized in that: also comprise fin pipe waste heat boiler (11), main motor (15), back pressure turbine (19) and heat exchange condenser (20), connect main motor (15) at exhaust blower (17) by shaft coupling (16); Described back pressure turbine (19) is connected with exhaust blower (17) by electromechanical integration clutch (18); Described combustion settling chamber (9) connects fin pipe waste heat boiler (11) by heat-insulation and heat-preservation flue (10), fin pipe waste heat boiler (11) connects back pressure turbine (19) by steam pipeline (12), and back pressure turbine (19) connects heat exchange condenser (20); Described heat exchange condenser (20) connects fin pipe waste heat boiler (11) by return pipe (24); Described fin pipe waste heat boiler (11) connects spark collection-type low-pressure impulse sack cleaner (4) by low-temperature steel pipeline (2).
2. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: described variable flow type fume hood of roof (1) forms a pyramid by a plurality of enclosings, and cone wallboard inclination angle scope is 45 ~ 60 ℃.
3. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: described low-temperature steel pipeline (2) is provided with electrically operated valve (13).
4. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: described smoke deflector enclosure (8) adopts metal framework, liner sound insulation deadener.
5. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, it is characterized in that: a plurality of water cooled pipelines that dense arrangement is set in the described water-cooled close arranging pipe suction inlet cover (7).
6. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: described combustion settling chamber (9) adopts high-alumina brick to be made into arch.
7. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, it is characterized in that: the upper cooling tower (21) that connects of described heat exchange condenser (20) is provided with water-circulating pump (22) between heat exchange condenser (20) and the cooling tower (21).
8. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: the air inlet of described spark collection-type low-pressure impulse sack cleaner (4) is provided with mixer selector valve (3).
9. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, and it is characterized in that: described return pipe (24) is provided with water pump (23).
10. motor steam turbine mixing as claimed in claim 1 drags converter dust-removing blower fan UTILIZATION OF VESIDUAL HEAT IN and dust pelletizing system, it is characterized in that: be provided with booster fan (14) between described fin pipe waste heat boiler (11) and the spark collection-type low-pressure impulse sack cleaner (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012203468240U CN202757471U (en) | 2012-07-17 | 2012-07-17 | Motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012203468240U CN202757471U (en) | 2012-07-17 | 2012-07-17 | Motor-steam turbine hybrid drive converter dust-removing fan waste heat utilization and dust-removing system |
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| CN202757471U true CN202757471U (en) | 2013-02-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735071A (en) * | 2012-07-17 | 2012-10-17 | 无锡三达环保科技有限公司 | Waste heat utilizing and dust collecting system for dust collection fan of motor and steam turbine hybrid dragged converter |
| CN103673642A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Device and method for dragging dust removal fan through industrial boiler steam |
| CN104329128A (en) * | 2014-10-31 | 2015-02-04 | 华电国际电力股份有限公司技术服务中心 | Back pressure machine work application device for supplying discharged steam of steam turbine high-pressure cylinder for industrial steam extracting system |
| CN105627771A (en) * | 2016-01-20 | 2016-06-01 | 王振铎 | Application of low-temperature phase-change medium waste heat recovery and utilization system in flue gas dust removal system |
-
2012
- 2012-07-17 CN CN2012203468240U patent/CN202757471U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735071A (en) * | 2012-07-17 | 2012-10-17 | 无锡三达环保科技有限公司 | Waste heat utilizing and dust collecting system for dust collection fan of motor and steam turbine hybrid dragged converter |
| CN103673642A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Device and method for dragging dust removal fan through industrial boiler steam |
| CN104329128A (en) * | 2014-10-31 | 2015-02-04 | 华电国际电力股份有限公司技术服务中心 | Back pressure machine work application device for supplying discharged steam of steam turbine high-pressure cylinder for industrial steam extracting system |
| CN104329128B (en) * | 2014-10-31 | 2015-12-09 | 华电国际电力股份有限公司技术服务中心 | For the back pressure machine acting device of steam turbine high-pressure cylinder steam discharge for extraction steam for factories system |
| CN105627771A (en) * | 2016-01-20 | 2016-06-01 | 王振铎 | Application of low-temperature phase-change medium waste heat recovery and utilization system in flue gas dust removal system |
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