CN105008800B - Boiler method of operation and boiler - Google Patents
Boiler method of operation and boiler Download PDFInfo
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- CN105008800B CN105008800B CN201480007517.1A CN201480007517A CN105008800B CN 105008800 B CN105008800 B CN 105008800B CN 201480007517 A CN201480007517 A CN 201480007517A CN 105008800 B CN105008800 B CN 105008800B
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- boiler
- value
- water
- keeping
- value range
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
- F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/007—Control systems for waste heat boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, 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
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/16—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways
- F22D1/18—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways and heated indirectly
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The boiler of the present invention has water system (11), ammonia interpolation equipment (12) adding ammonia solution to boiler water, the pH value measurement apparatus (14) of measurement boiler water pH value and the control device (15) of boiler water flowing.When heating boiler water, control device (15) can control ammonia to add equipment (12) makes the pH value of boiler water be included in keeping pH value range, before boiler water stops at flowing in water system (11), control device (15) can control ammonia to add equipment (12) makes the pH value of boiler water be included in keeping pH value range.Now, any pH value comprising in keeping pH value range is all higher than any pH value comprising in operating pH value range.This kind of boiler, compared with the keeping boiler water containing hydrazine for the injection in water system (11), can more easily prevent water system (11) from corroding.
Description
Technical field
The present invention relates to a kind of boiler method of operation and boiler, more particularly, to a kind of water system for combined-circulation once-through boiler water
The boiler method of operation being used in keeping and boiler.
Background technology
There are boiler and steam using the equipment that the water system for combined-circulation once-through boiler water generates steam (water vapour)
Turbine generating equipment, gas turbine (heat recovery boiler) and steam turbine combined cycle plant etc., but gasifying combined generating
Equipment (IGCC：Integrated coal Gasification Combined Cycle) be one kind have multiple for generating
The equipment of the water system of steam.Gasifying combined generating apparatus have coal gasifier, gas cooler, gas-turbine plant,
Heat recovery boiler, steam turbine installation and electromotor.Coal gasifier produces gasification by making dust coal, and generation has flammable
The output gas of property.Gas cooler cools down to output gas.Output gas burning after making cooling for the gas-turbine plant, raw
Become the combustion gas of High Temperature High Pressure, produce rotary power.Heat recovery boiler reclaims heat energy from the waste gas of gas-turbine plant, generates
High steam.Steam turbine installation utilizes steam to produce rotary power.Electromotor is by gas-turbine plant and steam turbine installation
Produced rotary power is converted into electric power.
Gas cooler and heat recovery boiler possess the water system for combined-circulation once-through boiler water.Supplied by making boiler water
Circulate in water system, gas cooler cools down to the output gas that coal gasifier generates, and heat recovery boiler is to gas turbine
The waste gas of equipment exhausting is cooled down.Additionally, gas cooler and heat recovery boiler are by making boiler water in water system
Circulation, heats to boiler water, generates the steam feeding to steam turbine installation.
On the other hand, in gasifying combined generating apparatus because the reasons such as periodic inspection shut down, it is in equipment keeping
During the time longer in the case of, when needing the pipeline etc. changing water system, discharge boiler water is tackled.However, being
In the case of can quickly restarting and not discharging boiler water in management process, preferably can be prevented from the pipe of water system
The metal structural materials such as road inside corrode.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Patent Laid-Open 2004-323954 publication
Patent documentation 2：Japanese Patent Laid-Open 2003-39084 publication
Patent documentation 3：Japanese Patent Laid-Open 4-83592 publication
Content of the invention
Invent problem to be solved
After generating equipment shuts down, not discharge boiler water in order to quickly restart in equipment management process and carry out keeping
In a period of, water supply system can reduce the corrosion of channel interior etc. by injecting the keeping water containing hydrazine.However, by
Harmful effect can be produced to health in hydrazine, therefore need in operation to add to note (with reference to patent documentation 1,2,3).So, need
Will can more easily, longer time in reduction water system metal member corrosion.
The problem of the present invention is to provide a kind of boiler method of operation and boiler, and it can be easy to reduce for boiler water flowing
Water system corrode.
Method for solving problem
The boiler method of operation of the first embodiment of the present invention, its using boiler water system partly operating.Institute
State boiler and possess the water system making the boiler water flowing through heating, and add ammonia to described boiler water and be used for adjusting pH value
Ammonia add equipment.According to the boiler method of operation of the present invention, it includes：Measure the operation of the pH value of described boiler water；Institute
When stating boiler operating, when described pH value is included in operating pH value range, described boiler water is made to flow in described water system
Move so that the operation that described boiler water is heated；In described shutdown of boiler, add equipment to institute by controlling described ammonia
State boiler water and add ammonia, until described pH value is included in the operation in keeping pH value range；Described in being included in when described pH value
When in keeping pH value range, described boiler water is made to stop at the operation of flowing in described water system.Now, described keeping is used
Any pH value comprising in pH value range is equal with any pH value comprising in described operating pH value range, or more than described
The described any pH value comprising in operating pH value range.
According to this kind of boiler method of operation, it is included in keeping pH value range by injection pH value in water system
Boiler water, with compared with water system, injection pH value is included in the boiler water in operating pH value range, can set in generating
For in the equipment management process after shutting down, for longer periods reduce the corrosion of water system.Additionally, usual ammonia is compared with hydrazine
It is physically easier to perform.Therefore, this kind of boiler method of operation is compared with to the water system keeping boiler water containing hydrazine for the injection, permissible
More easily prevent water system from corroding.
The boiler method of operation of described first embodiment, it further includes：Described boiler water stops at described water supply
After flowing in system, when described boiler restarts operating, when described pH value is included in described operating pH value range, make institute
State boiler water to flow to heat to described boiler water in described water system.
According to this kind of boiler method of operation, because the pH value of keeping boiler water is included in operating pH value range, lead to
Cross and keeping boiler water is used directly as operating boiler water, more easily can restart boiler at short notice.
The boiler method of operation of described first embodiment, it further includes：Correspond to many during with reference to multiple keepings
The form that individual keeping pH value range is made, derives with described boiler water not described from the plurality of keeping pH value range
The corresponding described keeping pH value range during stopping transport of the generating equipment of flowing in water system.Now, the plurality of keeping
It is more than the plurality of keeping pH value with the lower limit of corresponding with during the 1st the 1st keeping pH value range in pH value range
The lower limit of the 2nd keeping pH value range corresponding with the 2nd period being shorter than during the described 1st in scope.
According to this kind of boiler method of operation, appropriate amounts of ammonia can be added in described boiler water, can suitably reduce further
The corrosion of water system in equipment management process.
The boiler of second embodiment of the present invention, it has：Make the water system of the boiler water flowing through heating, to
The ammonia that described boiler water adds ammonia adds equipment, measures the pH value measurement apparatus of described boiler water pH value, and is used for controlling ammonia
The control device of interpolation equipment.When described boiler operates, described control device has：Make institute in order to heat described boiler water
When stating boiler water and flowing in described water system, described ammonia is controlled to add equipment so that described pH value is included in operating pH value
In the range of conventional control circuit, and, in described shutdown of boiler, stop in described water system stream in described boiler water
Before dynamic, described ammonia is controlled to add equipment so that described pH value is included in the keeping control circuit in keeping pH value range.
Now, any pH being comprised in any pH value being comprised in described keeping pH value range and described operating pH value range
Value is equal, or more than the described any pH value being comprised in described operating pH value range.
This kind of boiler is included in boiler water in keeping pH value range by injection pH value in water system, and in confession
The boiler water that in water system, injection pH value is included in operating pH value range is compared, and can reduce the corrosion of water system.This
Outward, usual ammonia and hydrazine are more easily than operation.Therefore, this kind of boiler injects the keeping boiler water containing hydrazine with to water system
Compare, can more easily suppress water system in equipment management process to corrode.
The gas cooler of third embodiment of the present invention, it has makes carbonic solid fuels gas by using oxidant
Change the generated stream of output flow of air and the stream (boiler water cycle system) of supply water flowing.Now, described water supply
System is heated to described boiler water using the heat of described output gas.
Water system in equipment management process when this kind of gas cooler can more easily suppress generating equipment to stop transport
Corrode.
The heat recovery boiler of the 4th embodiment of the present invention, it has the waste gas flowing discharged by gas turbine
Stream and the stream (boiler water cycle system) of supply water flowing, described water system uses the heat of described waste gas to described
Boiler water is heated.
Water system is supplied in equipment management process when this kind of waste gas recovery boiler can more easily prevent generating equipment from stopping transport
System corrodes.
The gasifying combined generating apparatus of the 5th embodiment of the present invention, it has：Waste Heat Recovery of the present invention
Boiler, generates the gasification furnace of output gas by gasification of carbonaceous solid fuel, to produce power by using described output gas and
The gas turbine of discharge waste gas, and the steam turbine producing power using steam.Now, described steam is by described water supply
System is heated to described boiler water using the heat of described output gas and the heat of described waste gas to be generated.
In equipment management process when this kind of gasifying combined generating apparatus can more easily suppress generating equipment to stop transport
Water system is corroded.
Invention effect
The boiler method of operation of the present invention and boiler, it is more than, by injecting pH value to water system, the pot circulating during operating
The boiler water of the pH value of stove water, can be easy to water system in reduction equipment management process and corrode.
Brief description
Fig. 1 is the structural outline schematic diagram illustrating gasifying combined generating apparatus.
Fig. 2 is the structural outline schematic diagram illustrating boiler water cycle system.
Fig. 3 is the block diagram illustrating control device.
Fig. 4 is the schematic flow sheet of the boiler keeping method illustrating comparative example.
Fig. 5 is the graph of relation illustrating pH value and corrosion.
Specific embodiment
Referring to the drawings, following explanation is carried out to the embodiment of the boiler of the present invention.As shown in figure 1, the water supply of this boiler
Components of system as directed is applied to gasifying combined generating apparatus 10.Gasifying combined generating apparatus 10 have gasification furnace 1, gas cooler
2nd, gas turbine 3, heat recovery boiler 5, steam turbine 6, electromotor 7 and condenser 8.Gasification furnace 1 is supplied by external equipment
Dust coal and the air (or oxygen) as oxidant that the coal as carbonic solid fuels given is formed after smashing, generate tool
There is flammable high temperature output gas.Gas cooler 2 is generated by the high temperature output gas being generated by gasification furnace 1 and produces after cooling
Give vent to anger.Carry out heat exchange by cooling down this high temperature output gas, gas cooler 2 is come using the boiler water being generated by condenser 8
Generate the steam of High Temperature High Pressure.
Gas turbine 3, using output gas after the cooling being generated by gas cooler 2, produces rotary power, discharges high temperature
Waste gas.Heat recovery boiler 5 passes through cooling and carries out heat exchange by the high-temp waste gas that gas turbine 3 discharges, using by condenser 8 institute
The steam to generate High Temperature High Pressure for the boiler water generating.Steam turbine 6 using the steam that generated by gas cooler 2 and by
The steam that heat recovery boiler 5 is generated, produces rotary power, discharges used steam.Electromotor 7 is produced using by gas turbine 3
Raw rotary power and rotary power produced by steam turbine 6 are generated electricity.Condenser 8 passes through to be arranged by steam turbine 6
The exhaust steam put is generating after water as boiler water.
Fig. 2 illustrates water supply (circulation) components of system as directed of gas cooler 2.Gas cooler 2 has water supply (circulation) system
11st, ammonia adds equipment 12, pH value measurement apparatus 14 and control device 15, also has output air-flow road a.In output air-flow road a
Flowing is the output gas being generated by gasification furnace 1.Water system 11 has dry drum 16, multiple downspout 17, union pipe 18
And multiple heat pipe 19.Dry drum 16 is made up of steel iron type materials (being recited as iron and steel below), forms a container.Dry drum
16 are connected with condenser 8 by pipeline 30, will to be fed to inside dry drum 16 by the boiler water that condenser 8 is generated.Steam
Steam drum 16 is connected with steam turbine 6 by pipeline 31, so that the steam being internally generated in dry drum 16 is fed to vapor wheel
Machine 6.Additionally, dry drum 16 is also connected with multiple downspouts 17, the boiler water of dry drum 16 internal reservoir to be fed to many
Individual downspout 17.
Multiple downspouts 17 are made up of iron and steel, are respectively formed with the stream of the boiler water circulation being supplied by dry drum 16.Many
Individual downspout 17 is connected to union pipe 18, to supply boiler water to union pipe 18.Union pipe 18 is made up of iron and steel, is formed
There is the tube head that the boiler water being supplied multiple downspouts 17 is collaborated.Union pipe 18 is also connected with multiple heat pipes 19,
So that boiler water is fed to multiple heat pipes 19.
Multiple heat pipes 19 are made up of iron and steel, are formed with the stream of the boiler water flowing being supplied by union pipe 18.Multiple lead
Heat pipe 19 is arranged on output air-flow road a, is heated with the heat that will pass through the output gas being generated by gasification furnace 1.Multiple
Heat pipe 19 is also connected with dry drum 16, dry drum 16 will to be fed to by the boiler water that union pipe 18 supplies.
Ammonia is added equipment 12 and is electrically connected with control device 15, can carry out information transmission, wherein stores ammonia solution.
Ammonia adds the control that equipment 12 passes through control device 15, supplies ammonia solution to pipeline 30, so that from condenser 8 to dry drum 16
Add ammonia solution in the boiler water of supply.
PH value measurement apparatus 14 are electrically connected with control device 15, can carry out information transmission.PH value measurement apparatus
14 controls passing through control device 15, carry out pH value at intervals of set time or persistently to the boiler water being stored in dry drum 16
Measurement.
Control device 15 is exactly computer, has the CPU that in figure do not indicate, storage device, memory drives, communication dress
Put and interface.
The information output that the external equipment being connected on control device 15 is generated by interface, to CPU, CPU is generated
Information output is to external equipment.External equipment includes ammonia and adds equipment 12 and pH value measurement apparatus 14.
As shown in figure 3, the computer program being arranged in control device 15 is made up of multiple computer programs, it is respectively used to
Control device 15 is made to realize several functions.Several functions include conventional control circuit 21 and keeping control circuit 22.
In gasification furnace 1 and gas cooler 2 operation process, pH value measurement apparatus 14 can at least measure and once be stored in steaming
The pH value of the boiler water in steam drum 16.Operating is stored in the storage device by conventional control circuit 21 in advance with pH value range.Fortune
The setting value of conversion pH value range is set to such as 9.7.Conventional control circuit 21 also adds equipment 12 to ammonia and is controlled, to make
In dry drum 16, the pH value of the boiler water of storage is included in operating pH value range.That is, when the pH value of this boiler water is less than fortune
During the setting value of conversion pH value range, conventional control circuit 21 can control ammonia to add equipment 12, supplies ammonia solution to pipeline 30.When
When the pH value of this boiler water is equal with the setting value of operating pH value range or is more than setting value, conventional control circuit 21 can be controlled
Ammonia processed adds equipment 12, does not supply ammonia solution to pipeline 30.
Keeping uses control circuit 22 to store in the storage device keeping with pH value range in advance.Keeping pH value range
Lower limit is equal to the setting value of operating pH value range or is more than setting value, for example, be set to 9.7.Keeping uses control circuit 22 also
Add equipment 12 to ammonia to be controlled, to make the pH value of the boiler water of storage in dry drum 16 be included in keeping pH value range
Interior.That is, when the pH value of the boiler water of storage in dry drum 16 is less than the lower limit of keeping pH value range, keeping is with controlling electricity
Road 22 can control ammonia to add equipment 12, supplies ammonia solution to pipeline 30.When the pH value of the boiler water of storage in dry drum 16 is more than
During the lower limit of keeping pH value range, keeping control circuit 22 can control ammonia to add equipment 12, does not supply ammonia to pipeline 30
Solution.
Heat recovery boiler 5 has the water system that in figure does not indicate.The composition of water system is similar with water system 11,
That is, there is dry drum, multiple downspout, union pipe and multiple heat pipe.Dry drum is made up of iron and steel, and is formed as holding
Device.Dry drum is connected with pipeline 30, and is connected with pipeline 31.Dry drum is also connected with multiple downspouts, so that will
The boiler water of dry drum internal reservoir feeds to multiple downspouts.
Multiple downspouts are made up of iron and steel, are respectively formed with the stream of the boiler water flowing being supplied by dry drum.Multiple falls
Liquid pipe is connected with union pipe respectively, to supply boiler water to union pipe.Union pipe is made up of iron and steel, and be formed as
Store the container of the boiler water being supplied by multiple downspouts.Union pipe is also connected with multiple heat pipes, so that by boiler water
Feed to multiple heat pipes.
Multiple heat pipes are made up of iron and steel, and are formed with the stream of the boiler water flowing being supplied by union pipe.Multiple lead
Heat pipe is arranged on the stream of waste gas flowing, is heated with will pass through the heat in the waste gas being discharged by gas turbine 3.Many
Individual heat pipe is also connected with dry drum, so that the boiler water that union pipe is supplied feeds to dry drum.
The embodiment of the boiler method of operation of the present invention is operated by gasifying combined generating apparatus 10, has conventional fortune
Turn, keeping operates and restarts operating.
During conventional operating, gasification furnace 1 uses the air (or oxygen) being supplied by external equipment, by being supplied by external equipment
The coal as carbonic solid fuels given is burnt after smashing, and generates and has flammable high temperature output gas.Gas cooler 2
Using the boiler water being generated by condenser 8, carry out heat exchange by cooling down the high temperature output gas being generated by gasification furnace 1, raw
Become output gas after cooling.Now, gas cooler 2 uses the heat of the high temperature output gas being generated by gasification furnace 1, by heating
Boiler water carries out heat exchange, generates the steam of High Temperature High Pressure.
Gas turbine 3 output gas after the cooling being generated by gas cooler 2 of burning, generates the useless of High Temperature High Pressure
Gas.Gas turbine 3 produces rotary power using the kinetic energy of waste gas further, and waste gas is discharged.Heat recovery boiler 5 uses
The boiler water being generated by condenser 8, carries out heat exchange by cooling by the high-temp waste gas that gas turbine 3 discharges, and generates cooling
Waste gas afterwards.Now, heat recovery boiler 5 uses the heat of the high-temp waste gas being discharged by gas turbine 3, by heating by condenser
8 boiler waters being generated carry out heat exchange, generate the steam of High Temperature High Pressure.
Steam turbine 6 is using the kinetic energy of high temperature and high pressure steam being generated by gas cooler 2 with by heat recovery boiler 5
The kinetic energy of the high temperature and high pressure steam being generated, produces rotary power, and discharges used steam.Electromotor 7 is using by gas turbine 3 institute
The rotary power producing and rotary power produced by steam turbine 6 are generated electricity.Condenser 8 passes through cooling by steam turbine
The exhaust steam of 6 discharges carries out heat exchange, generates water and is used as boiler water, by pipeline 30, boiler water is fed to gas cooler 2
With heat recovery boiler 5.
Now, pH value measurement apparatus 14 are surveyed to the pH value of the boiler water of storage in the dry drum 16 of gas cooler 2
Amount.The pH value measured is sent to control device 15 by pH value measurement apparatus 14.Setting value and survey when operating pH value range
The pH value measuring is equal or when the pH value measured is more than setting value, control device 15 passes through to control ammonia to add equipment 12, stops
Only supply to the boiler water of dry drum 16 interpolation ammonia solution to by condenser 8.When the pH value measured is less than set in advance
During the setting value of operating pH value range, control device 15 passes through to control ammonia to add equipment 12, supplies to steam to by condenser 8
Add ammonia solution in the boiler water of drum 16.
Gas cooler 2 passes through pipeline 30, by the boiler water cycle being supplied by condenser 8 in water system 11, makes
Generate steam with boiler water.That is, the boiler water of storage in dry drum 16 is fed to union pipe 18 by multiple downspouts 17.Union pipe
18 will be collaborated by the boiler water that multiple downspouts 17 are supplied.Multiple heat pipes 19 are using the height being generated by gasification furnace 1
Warm output gas, the boiler water after collaborating in heating union pipe 18 carries out heat exchange, and the boiler water through heating is fed to dry drum
16.Dry drum 16 passes through pipeline 30 by the boiler water being supplied by condenser 8 and the boiler being heated by multiple heat pipes 19
Water stores.Dry drum 16 carries out gas-liquid separation to the boiler water after storing and heating further, by through gas-liquid separation
Steam feeds to steam turbine 6.
Keeping operating is set to hold at once before gasifying combined generating apparatus 10 are due to the stoppage in transit such as time-based maintenance inspection
OK.Before gasifying combined generating apparatus 10 are stopped transport, control device 15 first passes through pH value measurement apparatus 14 to dry drum 16
The pH value of the boiler water of middle storage measures.When the pH value measured is less than the lower limit of keeping pH value range, control
Device passes through to control ammonia to add equipment 12, supplies ammonia solution to pipeline 30.When the pH value measured and keeping pH value range
When lower limit is equal or is more than lower limit, control device 15 passes through to control ammonia to add equipment 12, stops supplying ammonia to pipeline 30
Solution.
Gasifying combined generating apparatus 10 confirm that the pH value measured is equal to the lower limit or greatly of keeping pH value range
After lower limit, can shut down.After gasifying combined generating apparatus 10 shut down, water system 11 can stop boiler water
Circulation.Water system 11, after boiler water stops circulation, is passed through pressurization injection nitrogen further, is filled with gas from water system 11
Oxygen is discharged in the space of body, makes the nitrogen through pressurization be filled into this space.
PH value shown in Fig. 5 and the graph of relation corroding.Shown content is as follows：In hermetic container, in oxygen saturation (25
DEG C, 8mg/l), under the trystate of room temperature, according to the result of the test being immersed in test film in the ammonia solution of different pH value, from table
Face character, to determine whether corrosion, show that corroded area accounts for the ratio of entire area.When iron and steel is immersed in ammonia solution, ammonia solution
PH value is higher, then corrosion rate is lower, can suppress the corrosion of iron and steel within the longer time.Therefore, used according to this kind of keeping
Operating, in the equipment management process after gasifying combined generating apparatus 10 are stopped transport, is included in operating pH value with injection pH value
In the range of boiler water compare, water system 11 is included in boiler water in keeping pH value range by injecting pH value, permissible
Reduce corrosion further.As a result, being operated according to this kind of keeping, the equipment after gasifying combined generating apparatus 10 are stopped transport is protected
During pipe, water system 11 can be taken care of in order to avoid corroding.
Restart after operating at execution keeping operating and enter again after the gasifying combined generating apparatus 10 stoppage in transit stipulated time
Row operating.When restarting operating, with the conventional management process in equipment in inject and restart operating after the keeping water containing hydrazine
Different during beginning, gasifying combined generating apparatus 10 need not be discharged boiler water from water system 11 and be supplied satisfaction routine again
The boiler water of water quality during operating, you can start again at operating, the conventional operating of execution.
Restart operating according to this kind of, pH value need not be included in keeping pH value range for gasifying combined generating apparatus 10
Boiler water replace with the boiler water that pH value is included in operating pH value range, thus can shorten and restart required time, from
And with conventional restart operating compared with, can restart within the shorter time.
As the embodiment of existing equipment keeping method, in the comparative example of boiler method of operation and above-mentioned embodiment
Boiler method of operation identical, all operated using gasifying combined generating apparatus, simply by the guarantor in above-mentioned embodiment
Effective operating replaces with other keepings and operates, and the operating of restarting in above-mentioned embodiment is replaced with others and restarts fortune
Turn.
When keeping operates, after gasifying combined generating apparatus 10 are stopped transport, as shown in figure 4, boiler water is from water system
(step S1) is discharged in 11.Water system 11, after boiler water discharge, injects keeping water.50mg/L is contained in keeping water
Hydrazine.Water system 11, after injection keeping water, injects nitrogen by pressurization, in the space being filled with gas from water system 11
Air containing aerobic is discharged, makes the nitrogen through pressurization be filled into this space (step S2).
Operated according to this kind of keeping, during gasifying combined generating apparatus 10 are stopped transport, water system 11 passes through note
Enter the keeping water containing 50mg/L hydrazine, can the interior for a long time iron and steel suppressing to constitute water system 11 corrode.
When restarting operating, before restarting gasifying combined generating apparatus 10, will be high containing concentration from water system 11
The keeping being suitable for the hydrazine of concentration in conventional operating discharges (step S3) with water.Water system 11, after keeping is discharged with water, is injected
Boiler water (step S4).Boiler water is made up of the water not containing hydrazine.After injection boiler water in water system 11, gasifying combined
Generating equipment 10 restarts to operate, the conventional operating of execution.
According to the operating of restarting in this kind of existing embodiment, gasifying combined generating apparatus 10 pass through in conventional operating
When in water system 11 circulation do not contain the boiler water of hydrazine, can suitably be operated.
On the other hand, usual ammonia is easier to buy compared with hydrazine, therefore can more easily be processed.
Additionally, in the above-described embodiment, due to not discharging pot before water system 11 keeping from water system 11
Stove water, i.e. the boiler water that after restarting not discharging injection ammonia solution when operating, pH value is included in keeping pH value range,
Therefore equipment keeping terminate after restarting operate with comparative example equipment keeping terminate after restart operating compared with, can be more
Carry out in short time restarting operating, and due to boiler water need not be abandoned, can be with reduces cost.Weight for above-mentioned embodiment
Start shipment and turn, due to not discharging the boiler water of injection in water system 11 in equipment management process, therefore at gasifying combined
When after electric equipment 10 stoppage in transit, equipment keeping starts, note in water system 11 again after boiler water need not be discharged from water system 11
Enter the keeping water containing hydrazine, it is convenient to omit this procedure；In addition, when restarting, need not discharge from water system 11 and contain hydrazine
Keeping water after reinject boiler water, this procedure can also omit.With in comparative example restart operating compared with, can be more
Operated in short time.Therefore, according to the boiler operating side in the boiler method of operation in above-mentioned embodiment, with comparative example
Method is compared, and gasifying combined generating apparatus 10 can be stopped transport it is also possible to restart in shorter time in shorter time.
And, the operating performed by control device 15 can also be executed by user.That is, user is surveyed by control ph
Amount device 14, carries out pH value measurement to the boiler water of storage in the dry drum 16 of gas cooler 12.Set by manipulating ammonia interpolation
Standby 12, pipeline 30 adds ammonia solution or stops adding ammonia solution.In this case, with above-mentioned embodiment in boiler
Method of operation is identical, and gasifying combined generating apparatus 10 can more easily prevent to corrode, can be in shorter time
Stop transport it is also possible to restart in shorter time.That is, it is provided with boiler due in gas cooler 2, heat recovery boiler 5, therefore may be used
To play the effect above.This boiler has flowing and adds ammonia through the water system of boiler water of heating, to described boiler water
The pH value measurement apparatus that ammonia adds equipment and measures described boiler water pH value.
In the other embodiment of the boiler of the present invention, the keeping control circuit 22 in above-mentioned embodiment is replaced
For other keeping control circuits.Keeping control circuit is by corresponding multiple keeping pH value range during multiple keepings
Prestore in the storage device.Multiple keeping pH value range are set to the setting value of lower limit and operating pH value range
Equal, or it is more than setting value.For example, the result of the test according to Fig. 5, the keeping corresponding to the time within 24 hours is used
The lower limit of pH value range is 9.5.The lower limit of the keeping pH value range corresponding to the time within 72 hours is 9.7.4 days
The lower limit of the keeping pH value range corresponding to time comprising in 7 days is 9.8.The time institute comprising in 7 to 14
The lower limit of corresponding keeping pH value range is 9.9.The pH value model of the keeping corresponding to time comprising in 15 to 30
The lower limit enclosing is 10.Increase during with keeping, the lower limit of corresponding keeping pH value range also increases therewith.
Additionally, for example in the environment of high temperature, strong basicity (more than or equal to pH11), to general alkali environment corrosion resistance relatively
Strong iron and steel is also possible to occur caustic corrosion, therefore takes care of the higher limit using pH value preferably less than pH11.But it is not limited to
This.
After user is during input keeping in control device 15, keeping operating portion can be according to multiple keeping pH value models
Enclose to calculate the keeping pH value range corresponding with during keeping.Keeping operating portion control ph measurement apparatus 14 are right
In dry drum 16, the pH value of the boiler water of storage measures.Keeping control circuit can control ammonia to add equipment 12 further,
To make the pH value of the boiler water of storage in dry drum 16 be included in keeping pH value range.Additionally, being not limited only to calculate
The keeping pH value range corresponding with during keeping simultaneously controls ammonia to add equipment 12, can also be manually operated the ammonia that to operate
Interpolation equipment 12.
Identical with the gasifying combined generating apparatus 10 in above-mentioned embodiment, there is the coal of this kind of keeping control circuit
Integrated gasification combined cycle plant can more easily suppress water system 11 to corrode, and can stop transport in shorter time,
Can restart in shorter time.
Fig. 5 illustrates the pH value of keeping water and the relation of corrosion.This relation represents that the test material being made up of iron and steel is soaked
The pH value of the keeping water of bubble, and test material is immersed in the corroded area corresponding to through natural law in keeping water.Rotten
The surface area that the region corroded occurs on erosion cartographic represenation of area surface after natural law contacts keeping water with respect to test material
Surface area ratio.Additionally, this relation represents the degree that corrosion develops in time.This relation is also illustrated with keeping water
PH value bigger, then test material start corrode time more late.Therefore, this relation represents in water system 11 in management process
The pH value of the boiler water of injection is bigger, then can prevent in a long time to corrode.
Therefore, there are the gasifying combined generating apparatus of this kind of keeping control circuit, during with keeping of stopping transport
Growth and increase the lower limit of keeping pH value range, adding of the ammonia used in water system 11 management process can be reduced
Dosage, can suitably prevent water system 11 from corroding.
And, keeping pH value range may be replaced by other keeping pH value range that lower limit is expressed as 9.5.Protect
The lower limit of effective pH value range is equal with the setting value of operating pH value range, or the setting more than operating pH value range
Value.
Reference numeral explanation
1 gasification furnace
2 gas coolers
3 gas turbines
5 heat recovery boilers
6 steam turbines
10 gasifying combined generating apparatus
11 water systems
12 ammonia add equipment
14 pH value measurement apparatus
15 control devices
21 conventional control circuits
22 keeping control circuits
Claims (8)
1. a kind of boiler method of operation, it makes the water system of boiler water flowing using having,
And to described boiler water add ammonia solution ammonia add equipment boiler to carry out it is characterised in that：Including
Measure the operation of the pH value of described boiler water；
When described boiler operates, when described pH value is included in operating pH value range, make described boiler water in described water supply
In system, flowing is so that the operation that described boiler water is heated；
In described shutdown of boiler, add ammonia solution up to described pH value by controlling described ammonia to add equipment to described boiler water
Operation till being included in keeping pH value range；
When described pH value is included in described keeping pH value range, stops described boiler water and flow in described water system
Operation；And
Any pH value phase comprising in any pH value comprising in described keeping pH value range and described operating pH value range
Deng, or more than the described any pH value comprising in described operating pH value range.
2. boiler method of operation according to claim 1 it is characterised in that：It is also equipped with described boiler water and stop at described confession
After flowing in water system, when described boiler restarts operating, when described pH value is included in described operating pH value range, make
Described boiler water flows to heat to described boiler water in described water system.
3. boiler method of operation according to claim 1 and 2 it is characterised in that：During being also equipped with reference to multiple keepings with
The form that multiple keeping pH value range are correspondingly formed respectively, derives and described boiler from the plurality of keeping pH value range
The water not corresponding described keeping pH value range during stopping transport of the generating equipment of flowing in described water system, and
In the plurality of keeping pH value range, the lower limit of the 1st keeping pH value range corresponding with during the 1st is more than institute
State under corresponding with the 2nd period being shorter than during the described 1st the 2nd keeping pH value range in multiple keeping pH value range
Limit value.
4. boiler method of operation according to claim 3 it is characterised in that：The lower limit of described 1st keeping pH value range
The lower limit of value and the 2nd keeping pH value range is the numerical value in the range of 9.5 to 10.
5. a kind of boiler it is characterised in that：There is the water system of boiler water flowing,
The ammonia adding ammonia solution to described boiler water adds equipment,
Measure the pH value measurement apparatus of described boiler water pH value, and
Control device；And
When described boiler operates, described control device has：
When so that described boiler water is flowed in described water system in order to heat described boiler water, described ammonia is controlled to add equipment
So that described pH value is included in the conventional control circuit in operating pH value range, and
In described shutdown of boiler, before described boiler water stops at flowing in described water system, described ammonia is controlled to add
Equipment is so that described pH value is included in the keeping control circuit in keeping pH value range；And
Any pH value phase comprising in any pH value comprising in described keeping pH value range and described operating pH value range
Deng, or more than the described any pH value comprising in described operating pH value range.
6. a kind of gas cooler it is characterised in that：There is the boiler described in claim 5, and
The stream of the output flow of air being generated by gasification carbonaceous solid fuel；And
Described water system is heated to described boiler water using the heat of described output gas.
7. a kind of heat recovery boiler it is characterised in that：There is the boiler described in claim 5, and
Stream by the waste gas flowing of discharge of gas turbine；And
Described water system is heated to described boiler water using the heat of described waste gas.
8. a kind of gasifying combined generating apparatus it is characterised in that：There is the boiler described in claim 5,
The gasification furnace of output gas is generated by gasification carbonaceous solid fuel,
To produce power and to discharge the gas turbine of waste gas by using described output gas, and
Produce the steam turbine of power using steam；And
Described steam is to described boiler water by described water system using the heat of described output gas and the heat of described waste gas
Heated and generated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-031404 | 2013-02-20 | ||
| JP2013031404A JP5960077B2 (en) | 2013-02-20 | 2013-02-20 | Boiler operation method and boiler |
| PCT/JP2014/050970 WO2014129244A1 (en) | 2013-02-20 | 2014-01-20 | Boiler operation method and boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105008800A CN105008800A (en) | 2015-10-28 |
| CN105008800B true CN105008800B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480007517.1A Active CN105008800B (en) | 2013-02-20 | 2014-01-20 | Boiler method of operation and boiler |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150377078A1 (en) |
| JP (1) | JP5960077B2 (en) |
| KR (1) | KR101728263B1 (en) |
| CN (1) | CN105008800B (en) |
| WO (1) | WO2014129244A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180015605A (en) * | 2015-05-28 | 2018-02-13 | 미우라고교 가부시키카이샤 | Ballast water treatment device and ballast water treatment method |
| JP6420729B2 (en) * | 2015-07-02 | 2018-11-07 | 三菱日立パワーシステムズ株式会社 | Thermal power generation facility for recovering moisture from exhaust gas and method for treating recovered water of the thermal power generation facility |
| JP6937217B2 (en) | 2017-10-17 | 2021-09-22 | 三菱パワー株式会社 | Seawater leak detection device and method in water supply system and steam turbine plant |
| JP6830072B2 (en) * | 2018-01-22 | 2021-02-17 | 水ｉｎｇ株式会社 | Boiler protection method and boiler equipment |
| JP7150594B2 (en) | 2018-12-27 | 2022-10-11 | 三菱重工業株式会社 | Boiler plant cleaning storage method and cleaning storage device |
| CN114074982A (en) * | 2020-08-14 | 2022-02-22 | 云南聚杰环保科技有限公司 | Corrosion-prevention and scale-prevention technology for adding alkaline strong electrolyte into drum water of industrial drum furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004169992A (en) * | 2002-11-20 | 2004-06-17 | Chubu Electric Power Co Inc | Boiler management method |
| CN101045572A (en) * | 2006-03-31 | 2007-10-03 | 栗田工业株式会社 | Treatment method and device for water system of purified water boiler |
| JP2008075983A (en) * | 2006-09-22 | 2008-04-03 | Chugoku Electric Power Co Inc:The | Water treatment method during shut-down/start-up of power generation plant and its device |
| CN102519030A (en) * | 2012-01-10 | 2012-06-27 | 广东电网公司电力科学研究院 | Shutdown maintenance method of thermal equipment |
| CN102838227A (en) * | 2012-08-16 | 2012-12-26 | 浙江东发环保工程有限公司 | System and method for treating industrial park recycled water to form power plant boiler supplemental water |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076606B2 (en) * | 1985-05-08 | 1995-01-30 | 株式会社日立製作所 | Water treatment method for combined cycle power plant |
| JPS63105302A (en) * | 1986-10-22 | 1988-05-10 | バブコツク日立株式会社 | Feedwater treating method in power plant |
| US4905721A (en) * | 1989-05-11 | 1990-03-06 | Betz Laboratories, Inc. | Monitoring and controlling AVT (all volatile treatment) and other treatment programs for high pressure boilers via the conductivity control method |
| US5327330A (en) * | 1993-04-07 | 1994-07-05 | Ford Motor Company | Inner sealed lamp-within-a lamp headlamp for a motor vehicle |
| EP0640747B1 (en) * | 1993-08-20 | 1997-03-19 | Nalco Chemical Company | Boiler system pH/phosphate program control method |
| JPH08219405A (en) * | 1995-02-16 | 1996-08-30 | Kyushu Electric Power Co Inc | Corrosionproof method for boiler equipment |
| US7328170B2 (en) * | 2001-02-02 | 2008-02-05 | Optimal Robotics Corporation | Multi-device supervisor support for self-checkout systems |
| KR100569761B1 (en) * | 2004-09-23 | 2006-04-11 | 주식회사 포스코 | Automatic apparatus and method to diagnose and control water quality in boiler facilities |
| US7208117B2 (en) * | 2004-11-30 | 2007-04-24 | Ashland Licensing And Intellectual Property Llc | Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system |
| US7243618B2 (en) * | 2005-10-13 | 2007-07-17 | Gurevich Arkadiy M | Steam generator with hybrid circulation |
| US8075646B2 (en) * | 2006-02-09 | 2011-12-13 | Siemens Energy, Inc. | Advanced ASU and HRSG integration for improved integrated gasification combined cycle efficiency |
| JP2008057888A (en) * | 2006-08-31 | 2008-03-13 | Mitsubishi Heavy Ind Ltd | Water treatment method for steam plant |
| US20110070123A1 (en) | 2008-03-27 | 2011-03-24 | Jan Stodola | Corrosion reduction system for power generation plants during shutdown |
| JP5439942B2 (en) * | 2009-05-14 | 2014-03-12 | 栗田工業株式会社 | Water treatment agent addition method in a simple boiler |
| JP2010185655A (en) * | 2010-04-01 | 2010-08-26 | Miura Co Ltd | Method for inhibiting corrosion of boiler device |
-
2013
- 2013-02-20 JP JP2013031404A patent/JP5960077B2/en active Active
-
2014
- 2014-01-20 US US14/767,724 patent/US20150377078A1/en not_active Abandoned
- 2014-01-20 WO PCT/JP2014/050970 patent/WO2014129244A1/en active Application Filing
- 2014-01-20 KR KR1020157021388A patent/KR101728263B1/en active IP Right Grant
- 2014-01-20 CN CN201480007517.1A patent/CN105008800B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004169992A (en) * | 2002-11-20 | 2004-06-17 | Chubu Electric Power Co Inc | Boiler management method |
| CN101045572A (en) * | 2006-03-31 | 2007-10-03 | 栗田工业株式会社 | Treatment method and device for water system of purified water boiler |
| JP2008075983A (en) * | 2006-09-22 | 2008-04-03 | Chugoku Electric Power Co Inc:The | Water treatment method during shut-down/start-up of power generation plant and its device |
| CN102519030A (en) * | 2012-01-10 | 2012-06-27 | 广东电网公司电力科学研究院 | Shutdown maintenance method of thermal equipment |
| CN102838227A (en) * | 2012-08-16 | 2012-12-26 | 浙江东发环保工程有限公司 | System and method for treating industrial park recycled water to form power plant boiler supplemental water |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150104610A (en) | 2015-09-15 |
| JP2014159925A (en) | 2014-09-04 |
| CN105008800A (en) | 2015-10-28 |
| JP5960077B2 (en) | 2016-08-02 |
| WO2014129244A1 (en) | 2014-08-28 |
| US20150377078A1 (en) | 2015-12-31 |
| KR101728263B1 (en) | 2017-04-18 |
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Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi Power Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd. |