CN106948891A - A kind of energy-efficient cement power plant joint waste heat recovery generating system - Google Patents

A kind of energy-efficient cement power plant joint waste heat recovery generating system Download PDF

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Publication number
CN106948891A
CN106948891A CN201710223886.XA CN201710223886A CN106948891A CN 106948891 A CN106948891 A CN 106948891A CN 201710223886 A CN201710223886 A CN 201710223886A CN 106948891 A CN106948891 A CN 106948891A
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CN
China
Prior art keywords
power plant
waste heat
hot water
cement
energy
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Pending
Application number
CN201710223886.XA
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Chinese (zh)
Inventor
周满山
张媛
张传明
岳彦博
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LIBO HEAVY MACHINE TECHNOLOGY Co Ltd
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LIBO HEAVY MACHINE TECHNOLOGY Co Ltd
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Priority to CN201710223886.XA priority Critical patent/CN106948891A/en
Publication of CN106948891A publication Critical patent/CN106948891A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/14Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00Using steam or condensate extracted or exhausted from steam engine plant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18Combinations of steam boilers with other apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00Feed-water supply not provided for in other main groups
    • F22D11/02Arrangements of feed-water pumps
    • F22D11/06Arrangements of feed-water pumps for returning condensate to boiler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • F27D2017/006Systems for reclaiming waste heat using a boiler
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121Energy efficiency measures, e.g. improving or optimising the production methods
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

The invention discloses a kind of energy-efficient cement power plant joint waste heat recovery generating system, including power plant's circulation system and cement plant waste heat circulation system, power plant's circulation system includes boiler of power plant, power plant steam turbine, generator, condenser, oxygen-eliminating device and cooling tower;Cement plant waste heat circulation system includes afterheat hot water boiler, buffer tank and hot water circulating pump;The condensate of condenser is connected by oral siphon road with buffer tank, and buffer tank is connected by hot water circulating pump with afterheat hot water boiler water inlet, and afterheat hot water boiler delivery port hot water enters power plant's circulation system by outlet pipeline.The present invention solves that former cogeneration low parameter steam turbine generating efficiency is low, cold source energy is big, cost of investment is high, equipment is more, the low drawback of efficiency, make full use of that high parameter generating set is efficient, the low feature of cold source energy, it is high with generating efficiency, cold source energy is few, the low advantage of equipment cost.

Description

A kind of energy-efficient cement-power plant's joint waste heat recovery generating system
Technical field
The invention belongs to heat recovery technology field, and in particular to a kind of energy-efficient cement-power plant's joint waste heat recovery Electricity generation system.
Background technology
In the prior art Technology in Surplus Heat Power Generation of Cement Factory need individually to build low parameter steam turbine, generator and therrmodynamic system, The equipment such as control system, in addition it is also necessary to additionally set mechanical force cooling column, operations staff's quantity is more, and equipment cost is high, and low parameter steams Steam turbine power generation efficiency is low, cold source energy is big.Existing coal-burning power plant needs to build single in the thermodynamic cycle process of waste heat recovery Only low-temperature heating system, high-temperature heating system, deliver to generation HTHP after boiler of power plant overheat and steam after condensate is heated Vapour carries out acting generating, and equipment is more, and cost of investment is larger.
With reference to Figure of description to cement plant heat recovery technology in the prior art and waste heat recovery system of coal-burning power plant The primary structure of system and there is problem and make brief analysis:
Accompanying drawing 1 is residual heat of electric power plant recovery system structural representation in the prior art, and the superheated steam that boiler of power plant 101 is produced enters Power plant's high-parameter steam turbine 103 drives the acting of power generator 104 to generate electricity, the steaming for finishing work(that high-parameter steam turbine 103 is discharged Vapour, which is partly into after plant condenser 105 is cooled down by power plant cooling tower 106, turns into 40 DEG C or so of low-temperature condensate, condenses Water enters power plant's oxygen-eliminating device 108 by power plant cycle pump 107, and another part steam that high-parameter steam turbine 103 is discharged passes through electricity Factory's extraction valve 111 enters power plant's oxygen-eliminating device 108, is circulated by the water after the deoxygenation of power plant's oxygen-eliminating device 108 by power plant's feed pump 109 Return boiler of power plant 101 and enter next circulation.Power plant's high-parameter steam turbine 103 has high temperature, high pressure, efficient advantage of doing work, But need to build single low-temperature heating system, high-temperature heating system in thermodynamic cycle process, equipment cost is high.
Accompanying drawing 2 is cement plant residual neat recovering system structural representation in the prior art, and cement plant kiln hood or kiln exit gas are sent Enter cement plant waste heat steam boiler 201, the saturation low pressure steam come out from cement plant waste heat steam boiler 201 sends into cement plant Low parameter steam turbine 203 drives the acting of cement plant generator 204 to generate electricity, and what cement plant low parameter steam turbine 203 was discharged finishes work( Steam be partly into cement plant condenser 205 by cement plant cooling tower 206 cool down after turn into low-temperature condensate, condensate Cement plant oxygen-eliminating device 208 is entered by cement plant circulating pump 207, another part that cement plant low parameter steam turbine 203 is discharged steams Vapour enters cement plant oxygen-eliminating device 208 by cement plant extraction valve 211, and water is passed through by the water after the deoxygenation of cement plant oxygen-eliminating device 208 Mud factory feed pump 209 is recycled back to cement plant waste heat steam boiler 201 and enters next circulation.Cement plant low parameter steam turbine 203 Low temperature, low pressure, with generating efficiency is low, cold source energy is big, cost of investment is high, equipment is more, the low drawback of efficiency, the system equipment High cost, organic efficiency is low.
The content of the invention
To make up the deficiencies in the prior art, the present invention provides a kind of generating efficiency height, cold source energy is low and equipment cost is low Energy-efficient cement-power plant joint waste heat recovery generating system.
The present invention is achieved through the following technical solutions:
A kind of energy-efficient cement-power plant's joint waste heat recovery generating system, it is characterized in that:Including power plant's thermodynamic cycle System and cement plant waste heat circulation system, power plant's circulation system include boiler of power plant, power plant steam turbine, generator, Condenser, oxygen-eliminating device and cooling tower;The cement plant waste heat circulation system is followed including afterheat hot water boiler, buffer tank and hot water Ring pump;The condensate of the condenser is connected by oral siphon road with buffer tank, buffer tank by hot water circulating pump with it is remaining Hot hot-water boiler water inlet connection, cement plant kiln tail waste heat flue gas is passed through afterheat hot water boiler, afterheat hot water boiler delivery port heat Water enters power plant's circulation system by outlet pipeline.
The energy-efficient cement of the present invention-power plant's joint waste heat recovery generating system, the afterheat hot water boiler delivery port Hot water enters the oxygen-eliminating device of power plant's circulation system by outlet pipeline, and power plant is pumped into by feedwater after oxygen-eliminating device deoxygenation Boiler.
Energy-efficient cement-power plant joint the waste heat recovery generating system of the present invention, come out 40 DEG C or so of condenser Low-temperature condensate sends into buffer tank, then enters afterheat hot water boiler heat exchange by hot water circulating pump, 90- is changed into after heat absorption 150 DEG C or so of condensed water in high temperature simultaneously enters higher-pressure deaerator progress deoxygenation by outlet conduit, enters power plant by feed pump Boiler is changed into superheated steam and drives generator to carry out acting generating into power plant's high-parameter steam turbine, from finishing that steam turbine is discharged The steam of work(turns into 40 DEG C or so by cooling down into condenser low-temperature condensate after tower cooler goes successively to next circulation.
Further, energy-efficient cement of the invention-power plant's joint waste heat recovery generating system, the hot water circulating pump Regulation valve group is installed on the pipeline being connected with afterheat hot water boiler.
Further, energy-efficient cement of the invention-power plant's joint waste heat recovery generating system, the hot water circuit water Being provided with pump prevents water hammer non-return valve, and water hammer is prevented when switching hot-water circulating pump.
Further, energy-efficient cement of the invention-power plant's joint waste heat recovery generating system, the buffer tank one Side can ensure that water inlet is slowly stablized on oral siphon road provided with bypass I, buffer tank and bypass I, and simultaneous buffering water tank is alternatively arranged as remaining Hot hot-water boiler is used when promptly upper water discharges water.
Further, energy-efficient cement of the invention-power plant's joint waste heat recovery generating system, the oral siphon road Provided with bypass II between water inlet and the delivery port of outlet pipeline, pipeline can be cleaned before system starts or after stopping.
The energy-efficient cement of the present invention-power plant's joint waste heat recovery generating system, the oral siphon road and outlet pipeline On be separately installed with heat death theory device I and heat death theory device II.
The energy-efficient cement of the present invention-power plant's joint waste heat recovery generating system, the condensation water out of the condenser Condensate pump is installed, the oral siphon road that condenser is connected with buffer tank is provided with switch valve I, and condenser is with removing on pipeline The condensate line of oxygen device connection is provided with switch valve II.
The beneficial effects of the invention are as follows:
(1)The equipment such as low parameter steam turbine, generator, therrmodynamic system control system, operation are built The present invention reduces independent Personnel amount, cost and intensity are reduced.
(2)The present invention solves that the former cogeneration low parameter steam turbine generating efficiency in cement plant is low, cold source energy is big, throw Provide that high cost, equipment is more, the low drawback of efficiency, make full use of that high parameter generating set is efficient, the low feature of cold source energy, utilization Waste heat boiler produces high-temperature-hot-water and delivered to after the higher-pressure deaerator deoxygenation of coal-burning power plant, and generation high temperature is high after being overheated to coal-burning boiler Steam is pressed to carry out acting generating.
(3)The present invention replaces the low-temperature heating system high-temperature heating system of former coal-burning power plant using afterheat hot water boiler, both The waste heat recovery volume in cement plant is added, the water heating system of power plant is reduced again, the input of equipment has optimized system succinct, Improve the stability and heat recovery efficiency of system.
Brief description of the drawings
Accompanying drawing 1 is residual heat of electric power plant recovery system structural representation in the prior art.
The cement plant residual neat recovering system structural representation in the prior art of accompanying drawing 2.
Accompanying drawing 3 is the structural representation of the present invention.
In figure, 1 switch valve I, 2 buffer tanks, 3 hot water circulating pumps, 4 regulation valve groups, 5 afterheat hot water boilers, 6 bypasses II, 7 bypasses I, 8 prevent water hammer non-return valve, 9 oral siphon roads, 10 outlet pipelines, 11 heat death theory devices I, 12 heat death theory devices II, 13 electricity Factory's boiler, 14 power plant steam turbines, 15 generators, 16 condensers, 17 cooling towers, 18 condensate pumps, 19 switch valves II, 20 deoxygenations Device, 101 boiler of power plant, 102 power plant steam valves, 103 power plant's high-parameter steam turbines, 104 power generators, 105 plant condensers, 106 power plant cooling towers, 107 power plant cycle pumps, 108 power plant's oxygen-eliminating devices, 109 power plant's feed pumps, 110 power plant's flash vessels, 111 power plant Extraction valve, 201 cement plant boilers, 202 cement plant steam valves, 203 cement plant low parameter steam turbines, 204 cement plant generators, 205 cement plant condensers, 206 cement plant cooling towers, 207 cement plant circulating pumps, 208 cement plant oxygen-eliminating devices, the feedwater of 209 cement plants Pump, 210 cement plant flash vessels, 211 cement plant extraction valves.
Embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, to help the technology of this area Personnel have more complete, accurate and deep understanding to inventive concept of the invention, technical scheme, and protection scope of the present invention includes But following examples are not limited to, it is any to technical scheme on the premise of without departing from spirit and scope The modification that details and form are made is each fallen within protection scope of the present invention.
Accompanying drawing 3 is a kind of embodiment of the present invention.The embodiment includes power plant's circulation system and cement plant Waste heat circulation system, power plant's circulation system includes boiler of power plant 13, power plant steam turbine 14, generator 15, condenser 16th, oxygen-eliminating device 20 and cooling tower 17;The cement plant waste heat circulation system includes afterheat hot water boiler 5, buffer tank 2 and hot water Circulating pump 3.
The condensate of condenser 16 is connected by oral siphon road 9 with buffer tank 2, and buffer tank 2 passes through hot water circulating pump 3 It is connected with the water inlet of afterheat hot water boiler 5, cement plant kiln tail waste heat flue gas is passed through afterheat hot water boiler 5, and afterheat hot water boiler 5 goes out Mouth of a river hot water enters power plant's circulation system by outlet pipeline 10.
The energy-efficient cement of the present embodiment-power plant's joint waste heat recovery generating system, hot water circulating pump 3 and afterheat hot water Regulation valve group 4 is installed on the pipeline that boiler 5 is connected, inflow is adjusted according to the exchange capability of heat of afterheat hot water boiler 5.
Being provided with hot-water circulating pump 3 prevents water hammer non-return valve 8, prevents that water hammer from imitating when switching hot-water circulating pump 3 Should occur.
The energy-efficient cement of the present embodiment-power plant's joint waste heat recovery generating system, the one side of buffer tank 2 is provided with bypass I 7, buffer tank 2 and bypass I 7 can ensure that water inlet is slowly stablized on oral siphon road, and simultaneous buffering water tank 2 is alternatively arranged as afterheat hot water Boiler 5 is used when promptly upper water discharges water;Provided with bypass between the water inlet on the oral siphon road 9 and the delivery port of outlet pipeline 10 II 6, pipeline can be cleaned before system starts or after stopping;It is respectively mounted on the oral siphon road 9 and outlet pipeline 10 There are heat death theory device I 11 and heat death theory device II 12;Condensate pump 18 is installed on the condensation water outlet line of the condenser 16, coagulated The oral siphon road 9 that vapour device 16 is connected with buffer tank 2 is provided with switch valve I 1, the condensation that condenser 16 is connected with oxygen-eliminating device 10 Water lines are provided with switch valve II 19.
In the specific implementation, 40 DEG C or so of the low-temperature condensate come out from condenser 16 passes through oral siphon road to the present embodiment 9 feeding buffer tanks 2, then enter afterheat hot water boiler 5 by hot water circulating pump 3 and exchange heat, be changed into 120 DEG C or so after heat absorption Condensed water in high temperature simultaneously enters the progress deoxygenation of higher-pressure deaerator 20 by outlet pipeline 10, is become by feed pump into boiler of power plant 13 The power plant steam turbine 14 for entering high parameter for superheated steam drives generator 15 to carry out acting generating, is discharged from power plant steam turbine 14 The steam for finishing work(enter and turn into 40 DEG C or so of low-temperature condensate after condenser 16 is cooled down by cooling tower 17 and go successively to Next circulation, the heat of afterheat hot water boiler 5 comes from cement plant kiln tail waste heat flue gas.
The water lost during whole Water, steam circulation is supplemented to condenser 16 by make-up pump and provided.
The afterheat hot water boiler that the present invention is used is different from boiler using steam residual-heat of the prior art, by original output 1.3Mpa saturations low-pressure steam enters low-temp low-pressure parameter steam turbine power generation, innovates to absorb in waste gas using afterheat of hot water boiler Heat, 90-150 DEG C of output high-temperature-hot-water, subsequently into High temperature and High pressure Steam Turbine parameter therrmodynamic system, utilizes high parameter steamer The high efficiency of machine, substantially increases plant thermal efficiency, and reduces waste heat boiler investment and manufacture, operation difficulty, reduces low Parameter steam turbine, generator, therrmodynamic system, the investment of control system, low with investing, steel quantity consumption is few, requires low to tubing Feature.
The afterheat hot water boiler design parameter of the present embodiment is as follows:
Boiler inlet exhaust gas volumn:Vr=130000Nm3/h(300000 operating modes cubic meter, 350 DEG C)
Boiler inlet waste gas negative pressure:P=-6480Pa
Boiler inlet designs flue-gas temperature:t=350℃
Dust content:μg=120g/Nm3
Boiler export designs flue-gas temperature:t≤220℃
Boiler always leaks out:≤3%
Afterheat hot water boiler absorbed power 4100KW
The present invention is suitable for all cement plant kiln tail boilers and supporting power plant, has a extensive future, with connection cement and power plant Industrial chain, and optimize the facilitation of industrial chain, with good economic benefit and social benefit, preliminary economic benefit of investment: Reduce about 18,000,000 yuan of investment(Low parameter steam turbine, generator, therrmodynamic system, control system);Economical operation benefit:Reduce The people of operations staff 12, more conventional low parameter steam turbine power generation improves efficiency 20%.

Claims (8)

1. a kind of energy-efficient cement-power plant's joint waste heat recovery generating system, it is characterised in that:Including thermodynamic cycle system of power plant System and cement plant waste heat circulation system, power plant's circulation system includes boiler of power plant, power plant steam turbine, generator, solidifying Vapour device, oxygen-eliminating device and cooling tower;The cement plant waste heat circulation system includes afterheat hot water boiler, buffer tank and hot water circuit Pump;The condensate of the condenser is connected by oral siphon road with buffer tank, and buffer tank passes through hot water circulating pump and waste heat Hot-water boiler water inlet is connected, and cement plant kiln tail waste heat flue gas is passed through afterheat hot water boiler, afterheat hot water boiler delivery port hot water Power plant's circulation system is entered by outlet pipeline.
2. energy-efficient cement according to claim 1-power plant's joint waste heat recovery generating system, it is characterised in that:Institute The oxygen-eliminating device that afterheat hot water boiler delivery port hot water enters power plant's circulation system by outlet pipeline is stated, through oxygen-eliminating device deoxygenation Boiler of power plant is pumped into by feedwater afterwards.
3. energy-efficient cement according to claim 1 or 2-power plant's joint waste heat recovery generating system, it is characterised in that: Regulation valve group is installed on the pipeline that the hot water circulating pump is connected with afterheat hot water boiler.
4. energy-efficient cement according to claim 3-power plant's joint waste heat recovery generating system, it is characterised in that:Institute To state be provided with hot-water circulating pump and prevent water hammer non-return valve.
5. energy-efficient cement according to claim 1 or 2-power plant's joint waste heat recovery generating system, it is characterised in that: The buffer tank is on one side provided with bypass I.
6. energy-efficient cement according to claim 1 or 2-power plant's joint waste heat recovery generating system, it is characterised in that: Provided with bypass II between the water inlet on the oral siphon road and the delivery port of outlet pipeline.
7. energy-efficient cement according to claim 1 or 2-power plant's joint waste heat recovery generating system, it is characterised in that: Heat death theory device I and heat death theory device II are separately installed with the oral siphon road and outlet pipeline.
8. energy-efficient cement according to claim 1-power plant's joint waste heat recovery generating system, it is characterised in that:Institute State and condensate pump is installed on the condensation water outlet line of condenser, the oral siphon road that condenser is connected with buffer tank is provided with Switch valve I, the condensate line that condenser is connected with oxygen-eliminating device is provided with switch valve II.
CN201710223886.XA 2017-04-07 2017-04-07 A kind of energy-efficient cement power plant joint waste heat recovery generating system Pending CN106948891A (en)

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CN103185465A (en) * 2011-12-31 2013-07-03 洛阳蓝海实业有限公司 System for recycling waste heat on surface of rotary kiln cylinder body
CN106523058A (en) * 2016-12-05 2017-03-22 中冶华天工程技术有限公司 Steam-driven blower system based on optimal utilization of saturated steam of steel mill

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1601214A (en) * 2004-09-30 2005-03-30 中信重型机械公司 Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process
CN1971190A (en) * 2006-08-30 2007-05-30 王更庆 Power generation device by using residual heat and exhaust gas from converter
CN101021308A (en) * 2007-03-26 2007-08-22 上海喆能电力工程技术有限公司 Waste heat power generating system for dry cement production line
CN101520279A (en) * 2009-03-16 2009-09-02 南通万达锅炉股份有限公司 Adjusting boiler of low pressure section at cement kiln end
CN201420573Y (en) * 2009-05-14 2010-03-10 西安思安新能源有限公司 Deaerator/drum integrated cement waste heat generation device
CN102080582A (en) * 2010-12-06 2011-06-01 南京凯盛开能环保能源有限公司 Coal-fired power generation and waste heat power generation coupling system for private station of cement kiln
CN103185465A (en) * 2011-12-31 2013-07-03 洛阳蓝海实业有限公司 System for recycling waste heat on surface of rotary kiln cylinder body
CN106523058A (en) * 2016-12-05 2017-03-22 中冶华天工程技术有限公司 Steam-driven blower system based on optimal utilization of saturated steam of steel mill

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Application publication date: 20170714