CN204126679U - One utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system - Google Patents
One utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system Download PDFInfo
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- CN204126679U CN204126679U CN201420507770.0U CN201420507770U CN204126679U CN 204126679 U CN204126679 U CN 204126679U CN 201420507770 U CN201420507770 U CN 201420507770U CN 204126679 U CN204126679 U CN 204126679U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000002893 slag Substances 0.000 title claims abstract description 49
- 239000002918 waste heat Substances 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 238000010791 quenching Methods 0.000 title claims abstract description 25
- 230000000171 quenching effect Effects 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000005406 washing Methods 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 121
- 238000001816 cooling Methods 0.000 claims description 38
- 230000008676 import Effects 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 15
- 239000006200 vaporizer Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- -1 R142b Chemical compound 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 6
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 239000001273 butane Substances 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims description 3
- 239000001282 iso-butane Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 3
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003818 cinder Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to one and utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, belongs to energy and environment technical field.The utility model comprises washing slag water heat recovery heat-exchange system, organic Rankine bottoming cycle, steam-jet refrigerating system, cooling water recirculation system; Preheater adopts internal thread stainless steel helix tube shell-and-tube heat exchanger, and steam generator adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, and steam generator is held concurrently gas-liquid separator.The utility model structure is simple, processing and fabricating is simple, cheap, anti-plugging, better can realize countercurrent flow, and heat exchange efficiency is high, can effectively utilize the advantages such as the waste heat of washing slag water; This system separately for generating electricity or providing motive force, also separately for refrigeration, also can can provide chilled water needed for electric power and refrigeration air-conditioner simultaneously.
Description
Technical field
The utility model relates to one and utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, belongs to energy and environment technical field.
Background technique
Blast furnace slag quenching water is a kind of by-product that blast furnace ironmaking produces, as a kind of temperature waste heat sources, have temperature stabilization, flow large, contain a lot of feature of heat, how to allow washing slag water bring extra power into play the benefit utilized, also become the hot subject of a research gradually.Current China blast furnace slag treating process mainly Water Quenching Slag technology mode.The high temperature furnace slag of 1400 degree of-1500 degree in blast furnace, flows out through cinder notch, when entering flushing cinder chute through slag runner, with certain water yield, hydraulic pressure and the chute gradient, makes water become certain angle of cut with slag stream, and impacting quenches changes into qualified grain slag.In Iron-smelting, the new water of flushing cinder consumption accounts for new water and always consumes more than 50%.The about consumption of new water of punching 1 ton of grain slag 11.2 tons, cycling use of water amount is about about 10 tons.According to steel production in China output 500,000,000 tons, calculate by 350 kilograms of slag ratioes, only for the new water consumption of flushing cinder just more than 1.5 hundred million tons, account for 4% of the new water consumption of Iron And Steel Industry.The physics heat of the blast furnace slag taken away by washing slag water accounts for about 8% of ironmaking energy consumption, approximately suitable 21 kilograms, mark coal (calculating by 350 kg/ton iron).
The water temperature range 60-95 DEG C of circulating water pool, belongs to industrial low-temperature waste heat source, if be not used, this part energy will be wasted.At present for the UTILIZATION OF VESIDUAL HEAT IN of blast furnace slag quenching water, mainly or directly sensible heat is utilized to provide winter heating, this Land use systems technology is simple, reforming cost is very low, but there are some problems: (1) washing slag water water yield is large, the heat contained is very large, and the heating load of general territory office building is less, the waste heat ability of washing slag water can not be brought into play completely; (2) heating is only applicable to the city use in winter in the north, and summer does not need, and Shelter in South China Cities does not need heating throughout the year, and therefore this mode exists narrow limitation; (3) washing slag water contains a large amount of impurity, easily results in blockage after entering pipe network, and heating network system is huge, cleans very difficult.Therefore, the new technology of research blast furnace slag quenching water UTILIZATION OF VESIDUAL HEAT IN, the waste heat at utmost reclaiming blast furnace slag quenching water also just becomes very important.
Model utility content
The technical problems to be solved in the utility model is: the utility model provides one to utilize blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, structure is simple, processing and fabricating is simple, heat exchange efficiency is high, anti-plugging, effectively can utilize the waste heat of washing slag water, this system can separately for generating electricity or providing motive force, also separately for refrigeration, also can provide chilled water needed for electric power and refrigeration air-conditioner simultaneously.
Technical solutions of the utility model are: one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, comprise washing slag water heat recovery heat-exchange system, organic Rankine bottoming cycle, steam-jet refrigerating system, cooling water recirculation system;
Described washing slag water heat recovery heat-exchange system is made up of preheater 2, steam generator 1 and the pipeline they connected and annex; Low pressure steam pipeline is connected with the side-entrance of steam generator 1 hot fluid, and steam generator 1 hot fluid side outlet is connected with the side-entrance of preheater 2 hot fluid through pipeline, and preheater 2 hot fluid side outlet is connected with condensate line;
Described organic Rankine bottoming cycle forms by working medium liquid container 7, working medium compression pump 6, regenerator 3, preheater 2, steam generator 1, turbine 13, water-cooled condenser 9 or air-cooled condenser 11 and by the pipeline of their connections and annex, working medium liquid container 7 exports and is connected with working medium compression pump 6 import through pipeline, working medium compression pump 6 exports and is connected with the side-entrance of regenerator 3 cold fluid through pipeline, regenerator 3 cold fluid side outlet is connected with the side-entrance of preheater 2 cold fluid through pipeline, preheater 2 cold fluid side outlet is connected with the side-entrance of steam generator 1 cold fluid through pipeline, steam generator 1 cold fluid side outlet is connected with turbine 13 import through pipeline, turbine 13 exports and is connected with the side-entrance of regenerator 3 hot fluid through pipeline, regenerator 3 hot fluid side outlet divides two-way: a road is connected with the side-entrance of water-cooled condenser 9 hot fluid through pipeline, water-cooled condenser 9 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, one tunnel is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, completes a circulation,
Described steam-jet refrigerating system is made up of working medium liquid container 7, working medium compression pump 6, regenerator 3, preheater 2, steam generator 1, steam jet ejector 12, water-cooled condenser 9 or air-cooled condenser 11, throttle mechanism 5, cooling vaporizer 4 and the pipeline they connected and annex; Working medium liquid container 7 outlet is divided into two-way: a road is connected with working medium compression pump 6 import through pipeline, working medium compression pump 6 exports and is connected with the side-entrance of regenerator 3 cold fluid through pipeline, regenerator 3 cold fluid side outlet is connected with the side-entrance of preheater 2 cold fluid through pipeline, preheater 2 cold fluid side outlet is connected with the side-entrance of steam generator 1 cold fluid through pipeline, and steam generator 1 cold fluid side outlet is connected with steam jet ejector 12 import through pipeline; One tunnel is connected with throttle mechanism 5 import through pipeline, throttle mechanism 5 exports and is connected with the side-entrance of cooling vaporizer 4 cold fluid through pipeline, cooling vaporizer 4 cold fluid side outlet is connected with steam jet ejector 12 ejecting port through pipeline, then steam jet ejector 12 exports and is connected with the side-entrance of regenerator 3 hot fluid through pipeline, regenerator 3 hot fluid side outlet divides two-way: a road is connected with the side-entrance of water-cooled condenser 9 hot fluid through pipeline, and water-cooled condenser 9 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline; One tunnel is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, completes a circulation;
Described cooling water recirculation system forms by water-cooled condenser 9, mechanical-draft cooling tower 10 and circulating water pump 8 and by the pipeline of their connections and annex; Water-cooled condenser 9 cold fluid side outlet is connected with the side-entrance of mechanical-draft cooling tower 10 hot fluid by the road, mechanical-draft cooling tower 10 hot fluid side outlet is connected with circulating water pump 8 import through pipeline, circulating water pump 8 exports and is connected with the side-entrance of water-cooled condenser 9 cold fluid through pipeline, completes a circulation.
Describedly utilize blast furnace slag quenching water waste heat to carry out power recovery and cold supply system also comprises direct air cooling system, direct air cooling system comprises air-cooled condenser 11, working medium liquid container 7 and the pipeline their connected and annex forms; Regenerator 3 hot fluid side outlet is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot-fluid side outlet is connected with working medium liquid container 7 import through pipeline.
Cycle fluid in described organic Rankine bottoming cycle adopts toluene, R152a, R142b, R22, R123, R134a, R245fa, propane, R143a, R32, R23, pentane, isopentane, pentane, n-hexane, butane, the pure organic working medium of isobutane or its mixture and carbon dioxide.
In order to fully reclaim pulp water waste heat, and prevent pulp water blocking, pollution heat transmission equipment, described preheater 2 adopts internal thread stainless steel helix tube shell-and-tube heat exchanger, steam generator 1 adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, steam generator 1 is held concurrently gas-liquid separator, in steam generator 1, establish fluid level controller, control liquid level in steam generator 1 by the Flow-rate adjustment valve opening on the rotating speed of controlled medium compression pump 6 or feed pipe and reach requirement for guaranteeing into the temperature of the working substance steam of turbine 13 or the degree of superheat.
The cold junction (water-cooled condenser 9, air-cooled condenser 11) of this system can adopt water-cooled or direct air cooling mode, and these two kinds of types of cooling can arrange respectively also can close and establish.When cold junction adopts water-cooled and direct air cooling mode to close to establish, in the winter time or other colder periods, by the valve on pipeline, the type of cooling is switched to direct air cooling mode, improve running efficiency of system to greatest extent, in summer or other dry-bulb temperature higher period, by the valve on pipeline, the type of cooling is switched to water-cooling pattern.
The utility model, according to preferred cycle working medium such as slag water temperature, local climate condition, pulp water flows, is equipped with by the generate output of mission requirements and cooling load and installs working medium liquid container 7, working medium compression pump 6, regenerator 3, preheater 2, steam generator 1, turbine or decompressor 13, water-cooled condenser 9, air-cooled condenser 11, steam jet ejector 12, throttle mechanism 5, cooling vaporizer 4, mechanical-draft cooling tower 10, circulating water pump 8 and the pipeline their connected and annex.According to the charging amount of the pipe volume computation cycles working medium of organic Rankine bottoming cycle, cycle fluid metering is filled with in circulation loop.
This system separately for generating electricity or providing motive force, also separately for refrigeration, also can can provide electric power and refrigeration simultaneously.
Working principle of the present utility model is:
Organic Rankine bottoming cycle: the working medium that working medium liquid container is 7 li is pressurizeed through working medium compression pump 6, first by regenerator 3, absorb the heat of the exhaust steam of turbine or decompressor 13 wherein, the outer pulp water waste heat of tube side absorption tube entering preheater 2 afterwards completes preheating, the shell-side flowing into steam generator 1 again absorbs the evaporation of pulp water waste heat, satisfactory steam introduces turbine or decompressor 13 expansion work drives generator 14 to generate electricity, exhaust steam after expansion enters regenerator 3, enter water-cooled condenser 9 afterwards or air-cooled condenser 11 is condensed into liquid working substance, flow into working medium liquid container 7 li again, complete a circulation.The heat of water-cooled condenser is got rid of by mechanical-draft cooling tower 10 and cooling water circulating pump 8.
Refrigeration cycle: pressurize through compression pump 6 in liquid working substance one tunnel that working medium liquid container is 7 li, first by regenerator 3, absorb steam jet ejector 12 to be wherein vented or turbine 13(or decompressor) heat of exhaust steam that comes, the tube side entering preheater 2 afterwards completes preheating, the shell-side flowing into steam generator 1 again absorbs the evaporation of pulp water waste heat, satisfactory working steam introduces steam jet ejector 12 injection Low Temperature Steam, an other road liquid working substance is after throttling arrangement 5 throttling, enter cooling vaporizer 4, absorption refrigerating hydro-thermal amount completes evaporation, Low Temperature Steam by injection to steam jet ejector 12, enter water-cooled condenser 9 afterwards or air-cooled condenser 11 is condensed into liquid working substance.
The utility model preheater adopts internal thread stainless steel helix tube shell-and-tube heat exchanger, and steam generator adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, has following beneficial effect:
(1) steam generator adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, cycle fluid is at shell-side, pulp water flows into tube side from the top down, at steam generator, fluid level controller is set, be conducive to preventing pulp water from blocking, polluting heat-transfer pipe, the boiling heat transfer of strengthening working medium, and be convenient to the degree of superheat controlling liquid level and steam.
(2) this heat exchange mode has that structure is simple, processing and fabricating is simple, cheap, anti-plugging, better can realize countercurrent flow, and heat exchange efficiency is high, can effectively utilize the advantages such as the waste heat of washing slag water;
(3) this system separately for generating electricity or providing motive force, also separately for refrigeration, also can can provide chilled water needed for electric power and refrigeration air-conditioner simultaneously.
Accompanying drawing explanation
Fig. 1 is that the utility model blast furnace slag quenching water waste heat carries out power recovery and cold supply system structural representation;
Fig. 2 is the preheater of the utility model pulp water steam and the structural representation of steam generator.
Each label in Fig. 1-2: 1-steam generator, 2-preheater, 3-regenerator, 4-cooling vaporizer, 5-throttle mechanism, 6-working medium compression pump, 7-working medium liquid container, 8-circulating water pump, 9-water-cooled condenser, 10-mechanical-draft cooling tower, 11-air-cooled condenser, 12-steam jet ejector, 13-turbine (or decompressor), 14-generator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1-2, and one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, comprises washing slag water heat recovery heat-exchange system, organic Rankine bottoming cycle, steam-jet refrigerating system, cooling water recirculation system;
Described washing slag water heat recovery heat-exchange system is made up of preheater 2, steam generator 1 and the pipeline they connected and annex; Low pressure steam pipeline is connected with the side-entrance of steam generator 1 hot fluid, and steam generator 1 hot fluid side outlet is connected with the side-entrance of preheater 2 hot fluid through pipeline, and preheater 2 hot fluid side outlet is connected with condensate line;
Described organic Rankine bottoming cycle forms by working medium liquid container 7, working medium compression pump 6, regenerator 3, preheater 2, steam generator 1, turbine 13, water-cooled condenser 9 or air-cooled condenser 11 and by the pipeline of their connections and annex, working medium liquid container 7 exports and is connected with working medium compression pump 6 import through pipeline, working medium compression pump 6 exports and is connected with the side-entrance of regenerator 3 cold fluid through pipeline, regenerator 3 cold fluid side outlet is connected with the side-entrance of preheater 2 cold fluid through pipeline, preheater 2 cold fluid side outlet is connected with the side-entrance of steam generator 1 cold fluid through pipeline, steam generator 1 cold fluid side outlet is connected with turbine 13 import through pipeline, turbine 13 exports and is connected with the side-entrance of regenerator 3 hot fluid through pipeline, regenerator 3 hot fluid side outlet divides two-way: a road is connected with the side-entrance of water-cooled condenser 9 hot fluid through pipeline, water-cooled condenser 9 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, one tunnel is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, completes a circulation,
Described steam-jet refrigerating system is made up of working medium liquid container 7, working medium compression pump 6, regenerator 3, preheater 2, steam generator 1, steam jet ejector 12, water-cooled condenser 9 or air-cooled condenser 11, throttle mechanism 5, cooling vaporizer 4 and the pipeline they connected and annex; Working medium liquid container 7 outlet is divided into two-way: a road is connected with working medium compression pump 6 import through pipeline, working medium compression pump 6 exports and is connected with the side-entrance of regenerator 3 cold fluid through pipeline, regenerator 3 cold fluid side outlet is connected with the side-entrance of preheater 2 cold fluid through pipeline, preheater 2 cold fluid side outlet is connected with the side-entrance of steam generator 1 cold fluid through pipeline, and steam generator 1 cold fluid side outlet is connected with steam jet ejector 12 import through pipeline; One tunnel is connected with throttle mechanism 5 import through pipeline, throttle mechanism 5 exports and is connected with the side-entrance of cooling vaporizer 4 cold fluid through pipeline, cooling vaporizer 4 cold fluid side outlet is connected with steam jet ejector 12 ejecting port through pipeline, then steam jet ejector 12 exports and is connected with the side-entrance of regenerator 3 hot fluid through pipeline, regenerator 3 hot fluid side outlet divides two-way: a road is connected with the side-entrance of water-cooled condenser 9 hot fluid through pipeline, and water-cooled condenser 9 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline; One tunnel is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot fluid side outlet is connected with working medium liquid container 7 import through pipeline, completes a circulation;
Described cooling water recirculation system forms by water-cooled condenser 9, mechanical-draft cooling tower 10 and circulating water pump 8 and by the pipeline of their connections and annex; Water-cooled condenser 9 cold fluid side outlet is connected with the side-entrance of mechanical-draft cooling tower 10 hot fluid by the road, mechanical-draft cooling tower 10 hot fluid side outlet is connected with circulating water pump 8 import through pipeline, circulating water pump 8 exports and is connected with the side-entrance of water-cooled condenser 9 cold fluid through pipeline, completes a circulation.
Embodiment 2: as shown in Figure 1-2, one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, the present embodiment is identical with embodiment 1, wherein saidly utilize blast furnace slag quenching water waste heat to carry out power recovery and cold supply system also comprises direct air cooling system, direct air cooling system comprises air-cooled condenser 11, working medium liquid container 7 and the pipeline their connected and annex forms; Regenerator 3 hot fluid side outlet is connected with the side-entrance of air-cooled condenser 11 hot fluid through pipeline, and air-cooled condenser 11 hot-fluid side outlet is connected with working medium liquid container 7 import through pipeline.
Embodiment 3: as shown in Figure 1-2, one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, the present embodiment is identical with embodiment 2, and the cycle fluid in wherein said organic Rankine bottoming cycle adopts toluene, R152a, R142b, R22, R123, R134a, R245fa, propane, R143a, R32, R23, pentane, isopentane, pentane, n-hexane, butane, the pure organic working medium of isobutane or its mixture and carbon dioxide.
Embodiment 4: as shown in Figure 1-2, one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, the present embodiment is identical with embodiment 3, wherein said preheater 2 adopts internal thread stainless steel helix tube shell-and-tube heat exchanger, steam generator 1 adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, steam generator 1 is held concurrently gas-liquid separator, fluid level controller is established in steam generator 1, control liquid level in steam generator 1 by the Flow-rate adjustment valve opening on the rotating speed of controlled medium compression pump 6 or feed pipe and reach requirement for guaranteeing into the temperature of the working substance steam of turbine 13 or the degree of superheat.
Embodiment 5: as shown in Figure 1-2, one utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, the present embodiment is identical with embodiment 4, wherein the cold or severe cold area Iron And Steel Plant in certain north build one and utilize blast furnace slag quenching water waste heat to carry out power recovery and cold supply system, the temperature of warm sludge water is 91 DEG C, 200t/h, output power of motor is 500kW.
Cycle fluid adopts R134a, and evaporating temperature is set to 70 DEG C.
This example only adopts air-cooled cold junction, and condensing temperature presses 35 DEG C summer, and winter is designed by 0 DEG C, and air-cooled condenser adopts overall finned-tube condenser.
Regenerator adopts plate type heat exchanger, and heat exchange area is 100m2, and runner is combined as 1x1.
The steam generator structure of pulp water is as follows: pattern is shell-and-tube heat exchanger, heat-transfer pipe adopts D32x3 outside thread Stainless Steel Tube, length is 2.5m, and radical is 150, and equilateral triangle is arranged, tube pitch is 45mm, heat-transfer pipe and end plate adopt and are welded to connect, and shell adopts external diameter to be 800mm, and thickness is 16mm, top steam fairlead is DN150, and lower liquid inlet tube is 2xDN80.
The preheater structure of pulp water is as follows: pattern is shell-and-tube heat exchanger, heat-transfer pipe adopts D15x2 internal thread stainless steel helix tube, length is 1.5m, and radical is 70, and equilateral triangle is arranged, tube pitch is 25mm, heat-transfer pipe and end plate adopt and are welded to connect, and shell adopts external diameter to be 500mm, and thickness is 8mm, pulp water inlet duct is 2xDN150, and bottom pulp water discharge tube is DN300.
Employing rated power is the screw expander one of 500kW, and generator adopts the excitation alternator that rated power is 600kW, frequency is 50Hz.
Working medium compression pump adopts multistage centrifugal pump two, and flow is 80m3/h, and the pressure head provided is 2.2MPa, the using and the reserved.
The all connecting tubes of system all adopt Stainless Steel Tube, above all devices accessory is pressed Fig. 1 connect, after installation, carry out pipeline nitrogen purge, to organic Rankine bottoming cycle pipeline vacuumize qualified after, be filled with R134a on request.
About need initial cost 8,000,000 yuans.
Run 8000h per year to calculate, the electric energy of 2,800,000 kWh can be supplied every year, about 6 years recyclable fully investeds.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (4)
1. utilize blast furnace slag quenching water waste heat to carry out power recovery and a cold supply system, it is characterized in that: comprise washing slag water heat recovery heat-exchange system, organic Rankine bottoming cycle, steam-jet refrigerating system, cooling water recirculation system;
Described washing slag water heat recovery heat-exchange system is made up of preheater (2), steam generator (1) and the pipeline they connected and annex; Low pressure steam pipeline is connected with steam generator (1) hot fluid side-entrance, and steam generator (1) hot fluid side outlet is connected with preheater (2) hot fluid side-entrance through pipeline, and preheater (2) hot fluid side outlet is connected with condensate line;
Described organic Rankine bottoming cycle forms by working medium liquid container (7), working medium compression pump (6), regenerator (3), preheater (2), steam generator (1), turbine (13), water-cooled condenser (9) or air-cooled condenser (11) and by the pipeline of their connections and annex, working medium liquid container (7) outlet is connected with working medium compression pump (6) import through pipeline, working medium compression pump (6) outlet is connected with regenerator (3) cold fluid side-entrance through pipeline, regenerator (3) cold fluid side outlet is connected with preheater (2) cold fluid side-entrance through pipeline, preheater (2) cold fluid side outlet is connected with steam generator (1) cold fluid side-entrance through pipeline, steam generator (1) cold fluid side outlet is connected with turbine (13) import through pipeline, turbine (13) outlet is connected with regenerator (3) hot fluid side-entrance through pipeline, regenerator (3) hot fluid side outlet divides two-way: a road is connected with water-cooled condenser (9) hot fluid side-entrance through pipeline, water-cooled condenser (9) hot fluid side outlet is connected with working medium liquid container (7) import through pipeline, one tunnel is connected with air-cooled condenser (11) hot fluid side-entrance through pipeline, and air-cooled condenser (11) hot fluid side outlet is connected with working medium liquid container (7) import through pipeline, completes a circulation,
Described steam-jet refrigerating system is made up of working medium liquid container (7), working medium compression pump (6), regenerator (3), preheater (2), steam generator (1), steam jet ejector (12), water-cooled condenser (9) or air-cooled condenser (11), throttle mechanism (5), cooling vaporizer (4) and the pipeline they connected and annex, working medium liquid container (7) outlet is divided into two-way: a road is connected with working medium compression pump (6) import through pipeline, working medium compression pump (6) outlet is connected with regenerator (3) cold fluid side-entrance through pipeline, regenerator (3) cold fluid side outlet is connected with preheater (2) cold fluid side-entrance through pipeline, preheater (2) cold fluid side outlet is connected with steam generator (1) cold fluid side-entrance through pipeline, and steam generator (1) cold fluid side outlet is connected with steam jet ejector (12) import through pipeline, one tunnel is connected with throttle mechanism (5) import through pipeline, throttle mechanism (5) outlet is connected with cooling vaporizer (4) cold fluid side-entrance through pipeline, cooling vaporizer (4) cold fluid side outlet is connected with steam jet ejector (12) ejecting port through pipeline, then steam jet ejector (12) outlet is connected with regenerator (3) hot fluid side-entrance through pipeline, regenerator (3) hot fluid side outlet divides two-way: a road is connected with water-cooled condenser (9) hot fluid side-entrance through pipeline, water-cooled condenser (9) hot fluid side outlet is connected with working medium liquid container (7) import through pipeline, one tunnel is connected with air-cooled condenser (11) hot fluid side-entrance through pipeline, and air-cooled condenser (11) hot fluid side outlet is connected with working medium liquid container (7) import through pipeline, completes a circulation,
Described cooling water recirculation system forms by water-cooled condenser (9), mechanical-draft cooling tower (10) and circulating water pump (8) and by the pipeline of their connections and annex; Water-cooled condenser (9) cold fluid side outlet is connected with mechanical-draft cooling tower (10) hot fluid side-entrance by the road, mechanical-draft cooling tower (10) hot fluid side outlet is connected with circulating water pump (8) import through pipeline, circulating water pump (8) outlet is connected with water-cooled condenser (9) cold fluid side-entrance through pipeline, completes a circulation.
2. the blast furnace slag quenching water waste heat that utilizes according to claim 1 carries out power recovery and cold supply system, it is characterized in that: describedly utilize blast furnace slag quenching water waste heat to carry out power recovery and cold supply system also comprises direct air cooling system, direct air cooling system comprises air-cooled condenser (11), working medium liquid container (7) and the pipeline their connected and annex forms; Regenerator (3) hot fluid side outlet is connected with air-cooled condenser (11) hot fluid side-entrance through pipeline, and air-cooled condenser (11) hot-fluid side outlet is connected with working medium liquid container (7) import through pipeline.
3. the blast furnace slag quenching water waste heat that utilizes according to claim 1 carries out power recovery and cold supply system, it is characterized in that: the cycle fluid in described organic Rankine bottoming cycle adopts toluene, R152a, R142b, R22, R123, R134a, R245fa, propane, R143a, R32, R23, pentane, isopentane, pentane, n-hexane, butane, the pure organic working medium of isobutane or its mixture and carbon dioxide.
4. the blast furnace slag quenching water waste heat that utilizes according to claim 1 carries out power recovery and cold supply system, it is characterized in that: described preheater (2) adopts internal thread stainless steel helix tube shell-and-tube heat exchanger, steam generator (1) adopts outside thread Stainless Steel Tube shell-and-tube heat exchanger, steam generator (1) is held concurrently gas-liquid separator, fluid level controller is established in steam generator (1), control steam generator (1) interior liquid level by the Flow-rate adjustment valve opening on the rotating speed of controlled medium compression pump (6) or feed pipe to be used for guaranteeing reaching requirement into the temperature of the working substance steam of turbine (13) or the degree of superheat.
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| CN201420507770.0U CN204126679U (en) | 2014-09-04 | 2014-09-04 | One utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system |
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| CN201420507770.0U CN204126679U (en) | 2014-09-04 | 2014-09-04 | One utilizes blast furnace slag quenching water waste heat to carry out power recovery and cold supply system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196584A (en) * | 2014-09-04 | 2014-12-10 | 昆明理工大学 | System capable of conducting power recovering and cooling by using waste heat of blast furnace slag flushing water |
| CN106224023A (en) * | 2016-07-26 | 2016-12-14 | 西安交通大学 | A kind of combined cycle indirect air cooling system |
| CN109926547A (en) * | 2019-04-29 | 2019-06-25 | 嘉兴学院 | Machining Automobile Wheel Hub Mould cooling system |
| CN111076569A (en) * | 2018-10-19 | 2020-04-28 | 济南蓝辰能源技术有限公司 | Co2Closed cooling tower checking method for gas cooling |
| CN112344600A (en) * | 2020-11-25 | 2021-02-09 | 华北电力大学 | Energy potential super heat pump and operation method thereof |
-
2014
- 2014-09-04 CN CN201420507770.0U patent/CN204126679U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196584A (en) * | 2014-09-04 | 2014-12-10 | 昆明理工大学 | System capable of conducting power recovering and cooling by using waste heat of blast furnace slag flushing water |
| CN106224023A (en) * | 2016-07-26 | 2016-12-14 | 西安交通大学 | A kind of combined cycle indirect air cooling system |
| CN106224023B (en) * | 2016-07-26 | 2019-02-05 | 西安交通大学 | A kind of combined cycle indirect air cooling system |
| CN111076569A (en) * | 2018-10-19 | 2020-04-28 | 济南蓝辰能源技术有限公司 | Co2Closed cooling tower checking method for gas cooling |
| CN109926547A (en) * | 2019-04-29 | 2019-06-25 | 嘉兴学院 | Machining Automobile Wheel Hub Mould cooling system |
| CN112344600A (en) * | 2020-11-25 | 2021-02-09 | 华北电力大学 | Energy potential super heat pump and operation method thereof |
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