CN104930542A - Ultra-supercritical coal-fired boiler unit start adjusting method and system - Google Patents
Ultra-supercritical coal-fired boiler unit start adjusting method and system Download PDFInfo
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- CN104930542A CN104930542A CN201510344683.7A CN201510344683A CN104930542A CN 104930542 A CN104930542 A CN 104930542A CN 201510344683 A CN201510344683 A CN 201510344683A CN 104930542 A CN104930542 A CN 104930542A
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Abstract
The invention provides an ultra-supercritical coal-fired boiler unit start adjusting method and system. The method includes the steps of igniting a coal-fired boiler in an ultra-supercritical coal-fired boiler unit, sequentially conducting a coal-fired boiler no-load running test and a coal-fired boiler load running test, collecting the running working condition data of a coal-fired boiler in the no-load running test and the load running test respectively, setting a safety door in the ultra-supercritical coal-fired boiler unit on the basis of the data, conducting combustion adjustment and thermal engineering automatic operation, controlling the full-load running preset time of the coal-fired boiler, collecting full-load running working condition data, and conducting combustion adjustment on the ultra-supercritical coal-fired boiler unit according to the full-load running working condition data. In the whole process, the complete ultra-supercritical coal-fired boiler unit start adjusting mode is adopted, the ultra-supercritical coal-fired boiler unit start adjusting process can be guided and controlled, and the start effect of the ultra-supercritical coal-fired boiler unit and the safe running of a generator set are ensured.
Description
Technical field
The present invention relates to burning boiler technical field, particularly relate to ultra supercritical coal-burning boiler unit starting adjustment method and system.
Background technology
Coal fired power generation is that the steam by producing HTHP carrys out pushing turbine generating, and the temperature and pressure of steam is higher, and the efficiency of generating is higher.374.15 degrees Celsius, under 22.115 MPa, the density of steam can increase to the same with aqueous water, and this condition is called the critical parameters of water.The parameter also higher than this is called supercritical parameter.The gentle pressure of temperature is elevated to 600 degrees Celsius, the such interval of 25-28 MPa, just enters " boundary " of ultra supercritical.
In ultra-supercritical power generation technology, widely use ultra supercritical coal-burning boiler unit at present as qualified plant equipment.Whether the performance parameter checking and approving ultra supercritical coal-burning boiler unit reaches makers' guaranteed conditions, and whether the installation quality of qualification unit reaches standard.Find unit Problems existing in design, manufacture, installation etc. early by whole group of test run of equipment, to be processed as soon as possible, ensureing unit energy safety, economy, reliably running is significantly.
But, there is no a kind of complete ultra supercritical coal-burning boiler unit starting debud mode at present, ultra supercritical coal-burning boiler unit starting debug process is instructed, controlled, ultra supercritical coal-burning boiler unit starting effect cannot be guaranteed, have a strong impact on the safe operation of generating set.
Summary of the invention
Based on this, be necessary for there is no a kind of complete ultra supercritical coal-burning boiler unit starting debud mode at present, to the problem that ultra supercritical coal-burning boiler unit starting debug process instructs, controls, a kind of complete ultra supercritical coal-burning boiler unit starting adjustment method and system are provided, ultra supercritical coal-burning boiler unit starting debug process is instructed, controlled, guarantees the safe operation of ultra supercritical coal-burning boiler unit starting effect and generating set.
A kind of ultra supercritical coal-burning boiler unit starting adjustment method, comprises step:
Ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively;
According to coal-burning boiler operating condition data in coal-burning boiler operating condition data in the test of coal-burning boiler no-load run and coal-burning boiler load carrying test, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation;
Control coal-burning boiler oepration at full load Preset Time, gather coal-burning boiler operating condition data in coal-burning boiler oepration at full load process;
According to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, firing optimization is carried out to ultra supercritical coal-burning boiler unit.
A kind of ultra supercritical coal-burning boiler unit starting debug system, comprising:
Load test module, for carrying out ignition operation to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively;
First adjusting module, for according to coal-burning boiler no-load run test in coal-burning boiler operating condition data and coal-burning boiler load carrying test in coal-burning boiler operating condition data, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation;
Oepration at full load module, for controlling coal-burning boiler oepration at full load Preset Time, gathers coal-burning boiler operating condition data in coal-burning boiler oepration at full load process;
Second adjusting module, for according to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, carries out firing optimization to ultra supercritical coal-burning boiler unit.
Ultra supercritical coal-burning boiler unit starting adjustment method of the present invention and system, ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, gather the operating condition data of coal-burning boiler in no-load run test and load carrying test respectively, based on safety door in ultra supercritical coal-burning boiler unit described in these data pacings, and carry out firing optimization and thermal technology's automatic operation, control coal-burning boiler oepration at full load Preset Time (such as 168 hours) afterwards again, gather oepration at full load floor data, and according to load operation floor data, firing optimization is carried out to ultra supercritical coal-burning boiler unit.Whole process, it is the ultra supercritical coal-burning boiler unit starting debud mode of complete set, can ultra supercritical coal-burning boiler unit starting debug process be instructed, be controlled, guarantee the safe operation of ultra supercritical coal-burning boiler unit starting effect and generating set.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of ultra supercritical coal-burning boiler unit starting adjustment method of the present invention first embodiment;
Fig. 2 is the schematic flow sheet of ultra supercritical coal-burning boiler unit starting adjustment method of the present invention second embodiment;
Fig. 3 is the structural representation of ultra supercritical coal-burning boiler unit starting debug system of the present invention first embodiment;
Fig. 4 is the structural representation of ultra supercritical coal-burning boiler unit starting debug system of the present invention second embodiment.
Detailed description of the invention
For the ease of the technical scheme of explaining ultra supercritical coal-burning boiler unit starting adjustment method of the present invention in detail and the effect brought thereof, in following explanation illustrates, will mainly be described using a existing ultra supercritical coal-burning boiler unit as research object.In this ultra supercritical coal-burning boiler unit, coal-burning boiler is China Resources Power (Haifeng county) Co., Ltd 2 × 1050MW unit boiler model is HG-3100/28.25-YM4 type.Boiler is ultra supercritical variable-pressure operation direct current cooker, adopts
type layout, single burner hearth, resuperheat, low NOX main burner and a high-order over-fire air grading combustion technology, oppositely double-tangential firing mode, burner hearth is that riffled tube vertically rises fin panel casing, atmosphere flash-off start-up system; Method of temperature control, except coal/water ratio, also adopts the modes such as flue gas distributor, burner swing, water spray.Boiler adopts balanced draft, outdoor layout, dry ash extraction, all steel framework, full overhung construction.Every platform boiler is equipped with 6 cold primary air fan pressurized direct pulverizing coal systems of medium-speed pulverizer, and when using design coal, 5 operations, 1 for subsequent use.In addition, every platform boiler is synchronously equipped with SCR denitration system and low-level (stack-gas) economizer system.
Illustrate further down the composition of this ultra supercritical coal-burning boiler unit below.
1, burning and pulverized coal preparation system overview
In this ultra supercritical coal-burning boiler unit, burner adopts the two fireball tangential firing mode of anise without dividing wall, full tilting burner.Six layers of primary air nozzle established altogether by burner, and three floor alopecia areata rooms, Floor 12 assists air compartment, and whole burner is fixedly connected with water-cooling wall, and expands downwards with water-cooling wall.Four layers of additional burnout degree nozzle are furnished with at 7.2m place above the coal dust nozzle centerline of upper strata, its effect is the air required for postcombustion after burning, realize fractional combustion simultaneously and reach reduction in-furnace temperature level, the generation of restraint NO X, burnout degree burner forms lower NOx combustion system together with coal burner.
Every burner is equipped with three mechanical atomization formula oil guns, and full stove is totally 24 oil guns, and total input heat of oil gun is input heat under 15%B-MCR operating mode, and for ignition of the boiler and low-load combustion-stabilizing, every oil gun is all furnished with high energy ignition unit.The igniting of this engineering is intended adopting small oil gun tiny-oil ignition, and combustion-supporting oil adopts No. 0 light diesel fuel.Oil storage tank designs by 2 190m3, oil feed pump adopts the centrifugal pump of 1 × 50%+2 × 25% capacity.
Pulverized coal preparation system adopts the direct-firing system of Beijing Electrical Equipment Factory ZGM123G-II medium-speed pulverizer malleation, and 6 coal pulverizers joined by every stove.During BMCR, 5 are put into operation, and one for subsequent use.Coal pulverizer export coal powder fineness is R90=16.5% (coal pulverizer producer provides).Every platform grinding belt one deck burner, every root First air pipeline is all equipped with the pulverized coal distributor be divided into two, and is supplied to two burners.
2, air and flue system general introduction
Air and gas system presses balanced draft design.Air preheater system three points of storehouse rotor swingings, are divided into First air, Secondary Air and flue gas system.Every platform burner is equipped with flame detecting device, and system is provided with the fire defector cooling blower of two 100% capacity, and an operation, one for subsequent use.Be provided with the adjusting rotor blade axial-flow type air-introduced machine of 50% capacity that two merge with desulphurization devices after deduster, flue gas two stove after desulfurization share two steel inner cylinder sleeve-type chimney discharges of a high 240m.Every stove establishes the seal fan of two 100% capacity, the adjusting rotor blade primary air fan of two 50% capacity and pressure fan.
3, desulphurization and denitration, ash disposal, slag system general introduction
Adopt lime stone-gypsum wet sulfur removal technology.GGH is not set, gas bypass is not set.
Front flue of dust collector arm is equipped with low-level (stack-gas) economizer, is used for heat-setting Water Sproading heat.Denitrification apparatus adopts selective catalytic reduction (SCR), and the catalyst number of plies is by " 2+1 " mode arrangement, and reducing agent adopts liquefied ammonia.To be arranged in boiler steel frame between economizer exit and air preheater import.
A storehouse pump is set under each ash bucket of economizer and deduster, the ash of collection is entered storehouse pump via inlet valve, by pipeline, ash is delivered to grey storehouse by compressed air and stores.1 cover air-transport system established by every platform stove, and every cover system is exerted oneself as 150t/h, design coal is left to the allowance of about 167%, for checking the allowance that coal 2 leaves about 45%.The 18m ash storehouse of 3 diameters established by two stoves, 2 cinder storehouses, 1 thin grey storehouse.
Slag removing system adopts air-cooled mechanical deslagging mode, and the slag that namely boiler is discharged adopts the air-cooled slag extractor of two-stage, bucket elevator dreg introducing tank.Every platform stove establishes force one wind cold type slag extractor and a light breeze cold type slag extractor of a variable-ratio, slag extractor divides into 2 slag crushers and 2 bucket elevators, an operation, and one for subsequent use, every platform slag crusher is exerted oneself as 20t/h, clinker can be crushed to the particle that diameter is less than 20mm; Bucket elevator is exerted oneself as 20t/h, highly about 20m; 1 slag storehouse established by every platform stove, and diameter is 9m, dischargeable capacity 400 cubic metres, can store boiler at full capacity time the design coal quantity of slag of about 28 hours (check coal 2 and be about 15 hours).
Except pebble coal system adopts follow-on simple and mechanical process pebble coal mode, namely adopt the manner of cleaning up of sealed movable stone coal bunker, fork truck.
As shown in Figure 1, a kind of ultra supercritical coal-burning boiler unit starting adjustment method, comprises step:
S100: ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively.
Non-essential in ultra supercritical coal-burning boiler unit coal-burning boiler carry out between ignition operation, lower ultra supercritical coal-burning boiler unit can also be detected and whether meet ignition condition.After coal-burning boiler is lighted a fire, coal-burning boiler brings into operation, no-load run test is carried out in the first stage run, no-load run test mainly coordinates steam turbine red switch, the parameter meeting steam turbine red switch is provided, coordinate steam turbine, electrically complete every test, gather coal-burning boiler operating condition data in the test of whole coal-burning boiler no-load run.Load carrying test is carried out in the second stage run, namely progressively coal-burning boiler load is increased, such as can be increased to 25% rated load, specifically, load carrying test is after set grid-connection, starts pulverized coal preparation system according to unit operation situation, coordinates the trial throw of thermal control specialty automatically relevant, carry out boiler combustion tentatively to adjust, carry out oil-break according to unit load and combustion case, do not throw few-oil ignition system test.Gather coal-burning boiler operating condition data in coal-burning boiler load carrying test.
S200: according to coal-burning boiler operating condition data in coal-burning boiler operating condition data in the test of coal-burning boiler no-load run and coal-burning boiler load carrying test, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation.
S300: control coal-burning boiler oepration at full load Preset Time, gathers coal-burning boiler operating condition data in coal-burning boiler oepration at full load process.
Coal-burning boiler oepration at full load Preset Time can set according to test demand, such as, can be 168 hours.Coal-burning boiler slowly can increase load at full capacity from load carrying to oepration at full load, and such as coal-burning boiler total head state under 95% and above load is run, and load up is to 1000MW.Reach at full capacity at coal-burning boiler load, check comprehensively, adjust each system of ultra supercritical coal-burning boiler unit, make ultra supercritical coal-burning boiler unit be in normal operating condition.
S400: according to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, firing optimization is carried out to ultra supercritical coal-burning boiler unit.
Ultra supercritical coal-burning boiler unit starting adjustment method of the present invention, ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, gather the operating condition data of coal-burning boiler in no-load run test and load carrying test respectively, based on safety door in ultra supercritical coal-burning boiler unit described in these data pacings, and carry out firing optimization and thermal technology's automatic operation, control coal-burning boiler oepration at full load Preset Time (such as 168 hours) afterwards again, gather oepration at full load floor data, and according to load operation floor data, firing optimization is carried out to ultra supercritical coal-burning boiler unit.Whole process, it is the ultra supercritical coal-burning boiler unit starting debud mode of complete set, can ultra supercritical coal-burning boiler unit starting debug process be instructed, be controlled, guarantee the safe operation of ultra supercritical coal-burning boiler unit starting effect and generating set.
As shown in Figure 2, wherein in an embodiment, before step S100 also in steps
S500: analyze ultra supercritical coal-burning boiler set state, when ultra supercritical coal-burning boiler unit meets condition needed for default startup, Start-up and Adjustment operates, and wherein, condition needed for described default startup comprises thermal control and electric condition, civil engineering condition and safety condition.
Before formally debugging ultra supercritical coal-burning boiler unit, need detector whether to meet the condition needed for starting, the required condition be worth here mainly comprises thermal control and electric condition, civil engineering condition and safety condition.These conditions can be obtain based on burning boiler industry guideline and historical data specifically.
Continue below to accept above-mentioned instantiation, explanation specifically needs how to operate at this ultra supercritical coal-burning boiler unit step S120 in actual production life in detail.
Boiler body is installed, heat insulation work terminates, and in stove, scaffold is removed, the thoroughly cleaning of the inner warp of cinder chamber and cigarette air channel.Ensure each channels open, hole cover plate is sealed.
The condition that 4, should possess before debugging
The platform of 4.1 boiler bodies, staircase, railing, backplate are intact, and the road is clear, and temporary facility and scaffold are removed all, and clean out.
Insulation, the paintwork of 4.2 equipment and system terminate all, each operation acceptance(check).Ensure sufficient illumination.
Less than 4.3 equipment and systems are debugged, and ensure reliably to drop into:
Industrial water system, the water yield is sufficient, and hydraulic pressure is normal.Instrument with and maintenance compressed air system possess the condition of putting into operation, system pressure is normal.Stove water medicine system, steam water sampling system are rinsed well, and system is unimpeded.Water supply system, Attemperation water system are intact unimpeded.Bypath system can drop into pressure and temperature is automatic.Boiler startup hydrophobic dirt-removing system comes into operation normally.Auxiliary Steam comes into operation normally.Air preheater fire detector is reliable, and air preheater soot blower system, fire water rinse-system come into operation normally.Industrial tv monitoring system is working properly.Few-oil ignition system debug is complete, and the premenstrual stage running test of all few-oil ignition rifles, handy all flexibly, atomization is good.Fire inspection signal is debugged, and the debugging of few-oil ignition bullet group is complete.The thermal technology loop relevant to few-oil ignition system has been completed and qualified.Pulverized coal preparation system is qualified through cold conditions test run, possesses the condition that hot debugging is carried out in powder process.Four main tubes of boiler leak detecting device has been debugged, and possesses the condition of putting into operation.Coal handling system test run completes, and equipment operation is normal, the coal that run coal bin epipodium is qualified.Ash disposal, slag removing system debugging terminate, and each equipment operation is normal, ensures reliably to put into operation.Electric dust-removing equipment works well.Soot blower system (comprising boiler, denitration, air preheater and low-level (stack-gas) economizer soot blower system) has been debugged, and system pressure controls to throw automatically, and all supercooled state trial throw of each soot blower, program control test completes.Low-temperature coal economizer of boiler system puts into operation operation.Guarantee communication tool is complete.Fuel system debugging is complete, and the premenstrual stage running test of all oil guns, handy all flexibly, atomization is good.Fire inspection signal is debugged, and the debugging of oil gun subgroup is complete.Various mark is provided with.Boiler expansion system is up to the standards through steam tightness test, and expansion clearance is enough.Each suspension and support inspected adjustment is qualified.Affect the parts such as the temperature pier part of thermal expansion to cut off.Steam air heater energy bringing normally into operation.
4.4 instrument adjustment are complete, and display accurately.Mainly contain in following table:
Steam-water separator, superheater, reheater pressure; Each section of vapor (steam) temperature, flow; Steam-water separator, superheater, reheater tube wall temperature; Feed pressure, temperature, flow; Steam-water separator water-level gauge; Combustion chamber draft table; Furnace outlet gas temperature probe; The each draft gauge of Secondary Air total blast volume, Secondary Air; Wind and smoke temperature; Oxygen meter; Fuel pressure, fuel oil temperature, fuel level gauge First air blast, wind-warm syndrome; Operational Parameters in Powder Making System: each air quantity, blast and wind-warm syndrome; Each rotary machine bearing temperature, vibration, electric current;
The 4.5 boiler body operating pressure water pressure tests complete, and without finding leak, do not find seepage, condensation, and pressure drop rate conforms with the regulations requirement.
4.6 main protection of boilers, machine stove TV university interlocking and the debugging of all auxiliary equipments protections interlocking complete and through pass the test.
4.7 factory building erection of doors and windows are complete, weather proof can enter factory building.
4.8 hinder scaffold that is current and appearance fire hazardous removes, and raceway groove cover plate is complete, and ladder landing platform railing is complete, and site clearing is smooth, can ensure that worker safety passes through.
Fully, emergency lighting reliably drops in 4.9 illuminations.
4.10 communications services are complete, and each post of running has direct connection telephone to be connected with master-control room.
4.11 fire fighting devices are complete, and passageway for fire apparatus is unimpeded, and each key post has special messenger to monitor.
4.12 each synergic systems carry out quarantine measures with enlarging unit.
4.13 test runs are organized and are set up, debugging, run, maintainer is on duty; The division of labor is clear and definite.
4.14 about every system, code, drawing, data, measure, form and record complete.
4.15 maintenance are complete with running tool, standby redundancy.
Wherein in an embodiment, described ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively and specifically comprise step:
Upper water and the water pressure test are carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit;
When the described coal-burning boiler water pressure test is qualified, ignition operation is carried out to described coal-burning boiler;
Carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in coal-burning boiler no load test coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load test respectively.
Wherein in an embodiment, described when the described coal-burning boiler water pressure test is qualified, ignition operation is carried out to described coal-burning boiler and specifically comprises step:
When the described coal-burning boiler water pressure test is qualified, cold conditions cleaning is carried out to described coal-burning boiler;
When described coal-burning boiler cold conditions cleaning is qualified, ignition operation is carried out to described coal-burning boiler, and carries out hot cleaning.
Debug in ultra supercritical coal-burning boiler unit again after coal-burning boiler cleaning, guarantee the accurate of debug results.Whole blowpipe process comprises water process, cold conditions cleaning process and hot cleaning process specifically.Continue below to accept specific embodiment, explain these three processes in detail.
Need before water on 5.1 just to allow to boiler water filling when confirming at least to meet following condition
Tank level control valve and import gate valve thereof are in auto state, water tank pressure is less than 686kPa, water storage tank water level is less than 12000mm, feed water by-pass valve is in auto state, the unrestrained water valve of all boilers is in auto state, all boiler exhaust valves are in opening, hydrophobic development unit, condensation water tank and drainage pump and pipe-line system thereof are all in stand-by state, high-pressure feed-water heater bypass valve, inlet valve, outlet valve are in auto state, confirm that the cleaning water quality such as low pressure line (condenser is to oxygen-eliminating device) and stokehold section (height adds around) is qualified.
5.2 boiler water fillings mainly operate
Tank level control valve outlet port is closed through flash vessel, water tank and the drainage pump electric gate valve to condenser pipe.Open the electric gate valve of tank level control valve intake header.Check oxygen-eliminating device more than water temperature 50-70 DEG C, start heat pump and add water in pot, open steam feed pump outlet bypass valve and be used for boiler water filling, adding discharge is 10%MCR.The upper water time: be no less than 2 hours summer, be no less than 4 hours winter.Close the hydrophobic and vent valve of boiler successively.Water-cooling wall imports and exports header drain valve, water-cooling wall mixing header drain valve, water tank lower connection pipe drain valve, economizer exit header vent valve, vertical water wall outlet mixing header vent valve, steam-water separator export pipeline vent valve.After water storage tank water level is normal, boiler water filling completes.Upper water process should pay close attention to SEA LEVEL VARIATION, and checks whether each parts leak, and whether the expansion status of heating surface is normal, if note abnormalities, namely should ascertain the reason, and be eliminated.
5.3 boiler cold-state cleanings
Cleaning boiler is the impurity of clean deposition on heating surface, salinity and the iron oxide etc. because of corrosion generation mainly.Cleaning boiler comprises cold conditions cleaning and hot cleaning, enter boiler cold-state wash phase after boiler water filling completes, cold conditions cleaning process is divided into again open type to clean two stages of (rinse water drains into unit rhone after draining into hydrophobic development unit by tank level control valve) and wash cycles (rinse water is beaten to condenser circulation through drainage pump after all draining into hydrophobic development unit by tank level control valve).
(1) to meet the following conditions before boiler rinsing
Water tank pressure is lower than 0.6MPa.Complete pressure duct cleaning.Boiler water filling is complete.Tank level control valve is in auto state.Drainage pump is in auto state.Go the electric gate valve on condenser one tunnel to close after drainage pump, go the electric gate valve on system outer (water treatment station) tunnel to open.
(2) cold conditions open type wash phase
After accepting to start cleaning boiler instruction, tank level control valve is opened.Should ensure in cleaning process that oxygen-eliminating device water temperature is at about 80 DEG C.Open high-pressure by-pass valve, adopt water in the obstructed too high mode added.Starting trouble steam feed pump supplies water in boiler, provides cleaning boiler water.In boiler first time cold conditions open type cleaning process, first tank level control valve core is not installed, refills after boiler cold-state open type has been cleaned.In boiler cold-state open type cleaning process, drainage pump is exported to condenser pipe electric gate valve and cuts out, drainage pump is exported to outer (unit rhone station) the pipeline electric gate valve of system and opens, after tank level control valve, rinse water to flow through after hydrophobic development unit, water tank pipeline thus and discharges, until after water tank lower part outlet water quality is better than following desired value, the cleaning of cold conditions open type terminates.Water quality index: Fe<500ppb or turbidity≤3ppm; Grease≤1ppm; PH value: 9.3 ~ 9.5.
(3) the cold conditions wash cycles stage
After water quality is qualified, opens drainage pump and be exported to condenser pipe electric gate valve, close drainage pump simultaneously and be exported to outer (unit rhone station) the pipeline electric gate valve of system, water quality reclaims.Maintain 25%B-MCR cleaning flow and carry out wash cycles, until economizer inlet water is of fine quality in following index, cold conditions wash cycles terminates: water quality index: Fe<100ppb, pH value: 9.3 ~ 9.5, electrical conductivity of water≤1 μ S/cm.
5.4 boiler air and flue systems drop into
Check and confirm that boiler body, each wind, flue manhole door, observation door have been closed tightly all, furnace bottom water seal puts into operation normally.Start A, B air preheater mair motor, check that A, B air preheater mair motor rotates normal, confirm that gas baffle is opened, drop into A, B air preheater air motor interlocking, dropped into by air preheater guide bearing oil pump interlocking, seal clearance adjusting device exits automatically, and gap is adjusted to maximum position.Start side air-introduced machine, all are normal to check it.Slightly start leaf adjustment combustion chamber draft to about-100Pa, movable vane is regulated and drops into automatically.Start the same side pressure fan, all are normal to check it.Start opposite side air-introduced machine, all are normal to check it.Movable vane, to about-100Pa, drops into automatically by adjustment combustion chamber draft.Start opposite side pressure fan, all are normal to check it.By coordinating adjustment air-introduced machine movable vane, pressure fan movable vane aperture adjustment combustion chamber draft at about-100Pa, maintain furnace ventilation amount within the scope of 30% ~ 40%B-MCR air quantity.Start a fire inspection cooling blower, standby fan is dropped into for subsequent use.Drop into burner hearth cigarette temperature probe A, B.
5.5 fuel leakage tests
The female pipe leak test of fuel oil must be carried out before ignition of the boiler.Confirm that fuel system is in stokehold oil recurrent state, oil feed pump normal operation, before oil trip valve valve, main-piping pressure is normal.Fuel leakage is tested
(a) when following condition all satisfied, send fuel leakage allow signal:
All oil gun closed electromagnetic valves.Fuel oil main-piping pressure is normal, pressure setting > 4.0MPa.Fuel oil main-piping pressure transmitter is normal.Total blast volume 30% ~ 40%BMCR air quantity.Oil trip valve is closed.Fuel oil recycle valve is closed
B () presses on LCD " fuel leakage test starts ".
C () be " fuel leakage test carry out in " Bai Dengliang now, send fuel leakage pet valve simultaneously and open instruction, as fuel oil main-piping pressure >3.5MPa.g or open and to send fuel leakage pet valve after instruction sends 30 seconds and close instruction, the startup stage of entering fuel leakage test inspection after fuel leakage pet valve cuts out 5 seconds, if none appearance of following condition within 3 minutes, then fuel leakage has been tested, the when red of its correspondence also keeps, and checks that fuel oil recycle valve is opened.When following condition is arbitrary occur time, red light goes out:
Oil trip valve does not close.Action again after MFT resets.If arbitrary condition occurs below within 3 minutes, send fuel leakage test failure.Fuel oil main-piping pressure, lower than 0.03MPa, illustrates that the female pipe of fuel oil leaks.Before and after oil trip valve, differential pressure is less than 0.8MPa, illustrates that oil trip valve leaks.Arbitrary enabled condition disappears.
5.6 furnace purge
5.6.1 condition is purged
MFT condition does not exist (not comprising condition " full furnace flame forfeiture " and " critical flame appearance ").FSSS power supply is normal.Has a pressure fan at least in operation.Has an induced-draught fan at least in operation.Two air preheaters run.Burner hearth air quantity is within the scope of 30% ~ 40%B-MCR air quantity.Oil trip valve and all oil gun closed electromagnetic valves.Whole primary air fan, feeder, coal pulverizer trip.All separator for coal mill outlet damper complete shut-downs.Without " flame existence " signal in burner hearth.All secondary air box inlet baffles are in adjustable state and at purge position.Fuel leakage has been tested.Above condition sends " purging condition is ready to " signal after all meeting.
5.6.2 " purging " instruction is manually booted.
The furnace purge time is 5 minutes, purges after timing completes and sends " purging completes " signal, automatic resetting MFT relay.If in purge, above-mentioned arbitrary condition loses, and namely " purge and interrupt ", condition purges timing after meeting again.All the time furnace ventilation amount should be maintained within the scope of 30% ~ 40%B-MCR air quantity, until stop when boiler load reaches respective horizontal after purging completes.
5.7 bypath systems drop into
This unit is provided with the large bypath system of steam turbine one-level between high temperature superheater outlet and steam turbine condenser.Only for unit starting.
5.7.1 check turbine by pass following arrange correct after, reduced pressure by turbine by pass door and turbine by pass desuperheat door all drop into automatically, and open turbine by pass desuperheat isolation door:
Minimum aperture (Ymin) during " minimum pressure " mode is set to 5%; Maximum opening (Ymax) during " minimum pressure " mode is set to 40%; Goal pressure (Pmin) during " minimum pressure " mode is set to 1.00MPa; Goal pressure (Psync) during " pressure climbing " mode is set to 9.6MPa; Rate of pressure rise during " pressure climbing " mode is set to 0.10MPa/min; During " pressure tracking " mode, additional differences is set to 1.50MPa.
5.7.2 after ignition of the boiler, namely turbine by pass enters " minimum pressure mode " operation automatically, controls main vapour pressure at 1.0MPa.When boiler not yet plays pressure, turbine by pass decompression Men Yinyou " minimum aperture " condition and be automatically opened to 5%.After boiler pressure progressively raises, turbine by pass decompression door will progressively be opened greatly at 1.0MPa for controlling main vapour pressure.
5.7.3 continue to control in the process of main vapour pressure at 1.0MPa at turbine by pass decompression door, due to the increase of boiler oil amount, the aperture of turbine by pass decompression door will progressively be opened greatly, when aperture is greater than " maximum opening " 40% while being minimum pressure mode (40% maximum opening), turbine by pass will transfer " pressure climbing " mode to automatically.
5.7.4 turbine by pass is when " pressure climbing " mode, will by≤0.10MPa/min speed by main vapour pressure from 9.6MPa needed for 1.00MPa climbing to steam turbine red switch.
5.7.5, in turbine by pass climbing boost process, fuel quantity must be controlled by " cold start curve ", make each heating surface Temperature of Working heating rate≤2 DEG C/min.
5.7.6, after main vapour pressure reaches 9.6MPa, " pressure climbing " mode of turbine by pass terminates and enters " red switch pressure " mode.When " red switch pressure " mode, main vapour pressure is still controlled at 9.6MPa by turbine by pass.Steam turbine carry out red switch, raising speed, warming-up and grid-connected time, all to be reduced pressure gate control main vapour pressure by turbine by pass.
5.8 ignition of the boiler
5.8.1 carry out in cold conditions cleaning process at boiler, when economizer import water quality meet in the micro-Siemens per centimeter of electrical conductivity of water <1, water containing Fe<100 mcg/ml and pH value 9.3 ~ 9.5 time, namely boiler can light a fire.
5.8.2 must ensure that " permit condition for firing " specified is satisfied before boiler startup igniting, otherwise must not light a fire, permit condition for firing is as follows:
OFT resets.Fuel oil main-piping pressure normal (3.5 ~ 4.5MPa).MFT resets.Oil trip valve is opened.Fire inspection cooling wind pressure is normal.Fuel oil sweep air pressure is normal.Boiler air quantity is in 30% ~ 40%B-MCR scope.High-energy igniter power supply is normal.All oil guns control to be placed in " distant place " position.
Above condition sends when all meeting " igniting license " signal.After " igniting license " signal sends, boiler just can carry out ignition trigger.Secondary air box baffle plate corresponding to the oil gun that first will put into operation, center air door and burner outer second air door etc. are placed in fuel oil position, then could drop into oil gun.
5.8.3 put again at MFT, OFT reset after, feedwater flow is adjusted to 740t/h ~ 780t/h, check oil gun allow start condition satisfied, progressively put into operation bottom oil gun.
5.8.4 ignition of the boiler should note following problem
No matter first grease gun igniting success or not, all will forbid another grease gun igniting in 60 seconds.Drop into first oil gun, within 60 seconds, drop into second afterwards.After oil gun drops into, confirm that oil gun combustion position, fire inspection operation conditions are good.Observe flame TV can normal monitoring to hearth combustion situation.If necessary, suitable air distribution adjustment can be carried out.Notice that furnace outlet gas temperature is no more than 540 DEG C.If there is no arbitrary oil gun magnetic valve ON signal in OFT resets 10 minutes, trigger OFT protection act.Coming into operation in oil gun process, should check water storage tank water level normal and tank level control A, tank level control B, tank level control C valve automatic control action normal.Often prop up after oil gun puts into operation, oil gun atomization and combustion case should be checked, when finding that atomization is bad, when burning abnormal, this oil gun of should stopping using, and cleared up by maintainer.Fuel oil main-piping pressure normal (3.5 ~ 4.5MPa) must be confirmed before dropping into next oil gun.After ignition of the boiler, should note monitoring air preheater cold junction mean temperature, control air preheater cold junction mean temperature and be not less than 68.3 DEG C.Drop into in-duct burner if desired to run.Drop into the blowing ash continuously, drop into denitration sonic soot blowing of air preheater A, B after ignition of the boiler, low-level (stack-gas) economizer blows ash continuously.When all hydrophobic, the air bleeding valves of water tank pressure >=981kPa interlocking close boiler, to prevent the phenomenon of Lou closing.Putting into operation of oil gun should with reference to following items: the strict increasing temperature and pressure rate controlling boiler, optionally drops into/excise oil gun; Oil gun comes into operation according to from lower floor toward the order on upper strata in principle, and the oil gun that puts into operation makes same layer oil gun all put into operation as far as possible, ensures that boiler heat load is evenly distributed.After ignition of the boiler, confirm that Bypass Control pressure, specific temperature rise are normal, Steam Turbine Bypass System reducing-and-cooling plant all normally puts into operation.
5.9 hot cleanings
When producing steam in separator, turbine by pass valve should be in automatic operation state.Because the deposit in water reaches maximum 190 DEG C time, when being therefore warming up to 190 DEG C (ceiling outlet), should examination of water be carried out, when detecting water quality, stop boiler heating boosting.During hot cleaning, rinse water all drains into condenser.After ignition of the boiler, should note occurring that carbonated drink expanded by heating can cause water storage tank water level to raise suddenly, should ensure that tank level control valve normally can control water storage tank water level.After ignition of the boiler, the draining that ceiling outlet header and rear bag wall lower header drain valve carry out the short time should be opened and guarantee that this place is without ponding.When the hot cleaning of water tank outlet water quality Fe < 50 μ g/L terminates.
5.9.1 increasing temperature and pressure
After ignition of the boiler, regulate amount of fuel and turbine by pass valve opening, by cold start curve controlled boiler heating rate of pressure rise, control main vapour pressure step-up ratio≤0.10MPa/min, each heating surface Temperature of Working heating rate≤2 DEG C/min, keep combustion chamber draft to stablize, note monitoring each position cigarette temperature, wind-warm syndrome, control furnace outlet gas temperature≤540 DEG C.When separator pressure rises to 0.196MPa, close each emptying valve of furnace roof.Separator boosts to 0.2 ~ 0.4MPa, rinses separator water level meter, and contact thermal technology rinses gauge pipe, contact chemical flush probe tube.Boiler thermal-state water rinses, and water drains into condenser through water tank.When water-cooling wall outlet steam temperature reaches 190 DEG C, stop increasing temperature and pressure, detect water quality, optionally adjust the water yield of hot flushing.After hot flushing is qualified, continue increasing temperature and pressure.Separator pressure is risen to 9.6MPa, voltage stabilizing.To look over one's shoulder in increasing temperature and pressure process the expanded by heating situation of boiler.From igniting until band at full capacity, is carried out expansion record, pinpointed the problems and report without delay.When main vapour pressure is at 9.6MPa, Stream temperature degree reaches 415 DEG C (parameters required by the red switch of steam turbine cold conditions), suitably should reduce fuel quantity, keeps parameter stability, waits for steam turbine red switch.Should be noted that boiler thermal-state rinses and the increasing temperature and pressure stage also optionally can drop into corresponding pulverized coal preparation system with little oil burner.Before dropping into pulverized coal preparation system, must first drop into First air steam air heater, drop into bottom front wall pulverized coal preparation system by pulverized coal preparation system startup optimization code.
Wherein in an embodiment, described according to operating condition data in coal-burning boiler oepration at full load process, after firing optimization is carried out to ultra supercritical coal-burning boiler unit also in steps:
Gather and firing optimization data are carried out to ultra supercritical coal-burning boiler unit;
To store in coal-burning boiler no load test in coal-burning boiler operating condition data, coal-burning boiler load test in coal-burning boiler operating condition data, coal-burning boiler oepration at full load process coal-burning boiler operating condition data and firing optimization data are carried out to ultra supercritical coal-burning boiler unit.
Carrying out in the process of firing optimization, generating more corresponding data to ultra supercritical coal-burning boiler unit, by this part data acquisition, and store together with coal-burning boiler operating condition data in coal-burning boiler operating condition data, coal-burning boiler oepration at full load process in coal-burning boiler operating condition data, coal-burning boiler load test in coal-burning boiler no load test, be convenient to consult in subsequent operation, verify and study.
In order to the technical scheme of complete explanation ultra supercritical coal-burning boiler of the present invention unit starting adjustment method, above-mentioned specific embodiment is accepted in continuation below and explain.
6, coal-burning boiler starts no-load run
6.1 steam turbine red switch.
6.2 adjustment boiler operating parameters, cooperation is carried out steam turbine and electrical test and oil burner and is tested.
7, the on-load stage
After 7.1 set grid-connection band 5% loads, should confirm that cigarette temperature probe normally exits, note keeping main vapour pressure to stablize, burning strengthened by boiler simultaneously.
7.2 unit load up to 25% rated loads
When load is about 150MW, close tank level control valve.When air preheater outlet secondary air temperature reaches more than 160 DEG C, confirm that primary air fan entry condition meets, start A, B primary air fan, adjust one's intention as revealed in what one says positive pressure normal after, drop into primary air pressure and control " automatically ".Start a coal pulverizer seal fan, after confirming seal fan normal operation, drop into another seal fan automatic spare device.Carry out the preparation that puts into operation of pulverized coal preparation system.Notice ash disposal desulfurization operator on duty carries out the preparation that puts into operation of lime-ash, electric precipitation, desulphurization system.Throw and should to open that desuperheating water is pneumatic, electric isolating valve before powder, desuperheating water should be in stand-by state.When heat primary air temperature reaches more than 180 DEG C, confirm that unit pulverized coal preparation system meets the condition that puts into operation, warm throwing first group of pulverized coal preparation system.Pulverized coal preparation system drops into should follow following principle successively wall, rear front wall as far as possible, and makes flameholding.If adopt little oil burner to put into operation after corresponding coal pulverizer should strengthen monitoring and adjustment burning when hot cleaning.Pulverized coal preparation system should be noted after dropping into monitoring adjustment burner hearth coal dust firing situation, the combusted proportion of adjustment coal dust and fuel oil.Note monitoring that the steam-water separator outlet vapor degree of superheat is in normal range (NR).After throwing powder, slowly increase pulverizer capacity, on-site-inspection coal powder ignition situation, air velocity in monitoring coal pipe, optionally makes necessary firing optimization.After pulverized coal preparation system drops into, notice ash disposal desulfurization operator on duty put into operation lime-ash, system, electric dust removing system, desulphurization system, reports without delay that value is long if any abnormal.When boiler load reaches 200MW load, drop into second coal pulverizer.Confirm that the work vapour source of little steam turbine, standby steam source are normal, starts a steam feed pump normally after, to carry out and pump operated.And pump operated period to notice that boiler feed capacity keeps stable.The above stable operation of grid-connected rear band 25% rated load 3 ~ 4 hours, unit trip, does steam turbine overspeed test.After machine overspeed test terminates, according to circumstances shut down not blowing out, carry out steam tightness test and safety door adjustment work.
8, hygrometric state is changed to dry state
When unit load reaches 270MW ~ 290MW, stablize feedwater flow, slowly increase fuel quantity, water storage tank water level reduces gradually.Now, boiler proceeds to dry state operation by hygrometric state.Check that boiler tank level control valve heating coil pipeline comes into operation well.In the process of becoming a cadre state, the fluctuation of feedwater flow and fuel quantity should be strictly on guard against, cause the alternately conversion of dry hygrometric state.After unit enters DC operation operating mode, the change of centrum's temperature of should looking over one's shoulder (ceiling outlet), keeps suitable water coal ratio, controls overheating steam temperature and stablizes.The a whole set of control system of boiler drops into be run automatically, and corresponding Non-follow control switches to automatic control, and each several part interlock protection drops into, and unit normally runs.Unit load is fixed pressure operation when below 300MW, starts sliding pressure operation when main vapour pressure is more than 9.6MPa, 300MW load, 90% and above load rated pressure under level pressure state.Improve pulverized coal flow and reduce fuel flow simultaneously.Open non-return flap and the Electrically operated gate of drawing gas at different levels from low to high successively, drop into and highly add operation, check that HP heater drainage door at different levels action is normal.Unit load, after 300MW stablizes 24min, proceeds intensification, boosting, load up according to unit cold start curve.
9, rated load is risen to
During more than load 300MW, automatic sliding pressure operation starts.According to the intensification of boiler cold-state start up curve, boosting, load up.Can cut when load arrives more than 400MW and stop oil gun, progressively extinguish each oil gun, now should keep a close eye on furnace flame situation, as there is unstable combustion stable condition, should stop cutting stopping oil gun, increase oil gun and drop into.When boiler load reaches 400MW, the 3rd coal pulverizer can be dropped into, after suggestion puts into operation, in wall, arrange coal pulverizer corresponding to burner.Unit load 500MW, stablizes 10min.Boiler full cut-off oil, drops into electric precipitation.Air preheater is blown continuously ash change throw timing blow ash.Unit load 500MW, starts second heat pump paired running.When boiler load reaches 600MW, boiler combustion is stablized, and can carry out burner hearth and blow ash.Drop into fourth, fifth cover pulverized coal preparation system according to load condition to run.When dropping into the 4th coal pulverizer, suggestion is thrown in band front wall and is arranged burner coal pulverizer.When boiler load reaches 800MW load, according to circumstances start the 6th cover pulverized coal preparation system.Unit total head state under 95% and above load is run, and load up is to 1000MW.Reach at full capacity at unit load, check comprehensively, adjust each system of unit, make unit be in normal operating condition.
10, stage at full capacity
Condition
The defect affecting unit oepration at full load is all eliminated.Coal yard fuel is sufficient, and its composition and caloric value are close to designing requirement.Contact with middle tune, electrical network possesses unit continuous test run condition at full capacity.
As shown in Figure 3, a kind of ultra supercritical coal-burning boiler unit starting debug system, comprising:
Load test module 100, for carrying out ignition operation to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively.
First adjusting module 200, for according to coal-burning boiler no-load run test in coal-burning boiler operating condition data and coal-burning boiler load carrying test in coal-burning boiler operating condition data, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation.
Oepration at full load module 300, for controlling coal-burning boiler oepration at full load Preset Time, gathers coal-burning boiler operating condition data in coal-burning boiler oepration at full load process.
Second adjusting module 400, for according to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, carries out firing optimization to ultra supercritical coal-burning boiler unit.
Ultra supercritical coal-burning boiler unit starting debug system of the present invention, in load test module 100 pairs of ultra supercritical coal-burning boiler units, coal-burning boiler carries out ignition operation, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, gather the operating condition data of coal-burning boiler in no-load run test and load carrying test respectively, first adjusting module 200 is based on safety door in ultra supercritical coal-burning boiler unit described in these data pacings, and carry out firing optimization and thermal technology's automatic operation, oepration at full load module 300 controls coal-burning boiler oepration at full load Preset Time (such as 168 hours), gather oepration at full load floor data, second adjusting module 400 carries out firing optimization according to load operation floor data to ultra supercritical coal-burning boiler unit.Whole process, it is the ultra supercritical coal-burning boiler unit starting debud mode of complete set, can ultra supercritical coal-burning boiler unit starting debug process be instructed, be controlled, guarantee the safe operation of ultra supercritical coal-burning boiler unit starting effect and generating set.
As Fig. 4, wherein in an embodiment, described ultra supercritical coal-burning boiler unit starting debug system also comprises:
Startup analysis module 500, for analyzing ultra supercritical coal-burning boiler set state, when ultra supercritical coal-burning boiler unit meets condition needed for default startup, Start-up and Adjustment operates, wherein, condition needed for described default startup comprises thermal control and electric condition, civil engineering condition and safety condition.
Wherein in an embodiment, described load test module 100 specifically comprises:
Water pressure test unit, for carrying out upper water and the water pressure test to coal-burning boiler in ultra supercritical coal-burning boiler unit;
Igniting unit, for when the described coal-burning boiler water pressure test is qualified, carries out ignition operation to described coal-burning boiler;
Load test unit, for carrying out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in coal-burning boiler no load test coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load test respectively.
Wherein in an embodiment, described igniting unit specifically comprises:
Cold conditions cleaning unit, for when the described coal-burning boiler water pressure test is qualified, carries out cold conditions cleaning to described coal-burning boiler;
Hot cleaning unit, for when described coal-burning boiler cold conditions cleaning is qualified, carries out ignition operation to described coal-burning boiler, and carries out hot cleaning.
Wherein in an embodiment, described ultra supercritical coal-burning boiler unit starting debug system also comprises:
Acquisition module, carries out firing optimization data for gathering to ultra supercritical coal-burning boiler unit;
Memory module, for store in coal-burning boiler no load test in coal-burning boiler operating condition data, coal-burning boiler load test in coal-burning boiler operating condition data, coal-burning boiler oepration at full load process coal-burning boiler operating condition data and carry out firing optimization data to ultra supercritical coal-burning boiler unit.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a ultra supercritical coal-burning boiler unit starting adjustment method, is characterized in that, comprise step:
Ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively;
According to coal-burning boiler operating condition data in coal-burning boiler operating condition data in the test of coal-burning boiler no-load run and coal-burning boiler load carrying test, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation;
Control coal-burning boiler oepration at full load Preset Time, gather coal-burning boiler operating condition data in coal-burning boiler oepration at full load process;
According to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, firing optimization is carried out to ultra supercritical coal-burning boiler unit.
2. ultra supercritical coal-burning boiler unit starting adjustment method according to claim 1, it is characterized in that, described ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run in coal-burning boiler operating condition data and coal-burning boiler load carrying test before coal-burning boiler operating condition data also in steps respectively:
Analyze ultra supercritical coal-burning boiler set state, when ultra supercritical coal-burning boiler unit meets condition needed for default startup, Start-up and Adjustment operates, and wherein, condition needed for described default startup comprises thermal control and electric condition, civil engineering condition and safety condition.
3. ultra supercritical coal-burning boiler unit starting adjustment method according to claim 1 and 2, it is characterized in that, described ignition operation is carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively and specifically comprise step:
Upper water and the water pressure test are carried out to coal-burning boiler in ultra supercritical coal-burning boiler unit;
When the described coal-burning boiler water pressure test is qualified, ignition operation is carried out to described coal-burning boiler;
Carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in coal-burning boiler no load test coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load test respectively.
4. ultra supercritical coal-burning boiler unit starting adjustment method according to claim 3, is characterized in that, described when the described coal-burning boiler water pressure test is qualified, carries out ignition operation specifically comprise step to described coal-burning boiler:
When the described coal-burning boiler water pressure test is qualified, cold conditions cleaning is carried out to described coal-burning boiler;
When described coal-burning boiler cold conditions cleaning is qualified, ignition operation is carried out to described coal-burning boiler, and carries out hot cleaning.
5. ultra supercritical coal-burning boiler unit starting adjustment method according to claim 1 and 2, it is characterized in that, described according to operating condition data in coal-burning boiler oepration at full load process, after firing optimization is carried out to ultra supercritical coal-burning boiler unit also in steps:
Gather and firing optimization data are carried out to ultra supercritical coal-burning boiler unit;
To store in coal-burning boiler no load test in coal-burning boiler operating condition data, coal-burning boiler load test in coal-burning boiler operating condition data, coal-burning boiler oepration at full load process coal-burning boiler operating condition data and firing optimization data are carried out to ultra supercritical coal-burning boiler unit.
6. a ultra supercritical coal-burning boiler unit starting debug system, is characterized in that, comprising:
Load test module, for carrying out ignition operation to coal-burning boiler in ultra supercritical coal-burning boiler unit, carry out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in the test of coal-burning boiler no-load run coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load carrying test respectively;
First adjusting module, for according to coal-burning boiler no-load run test in coal-burning boiler operating condition data and coal-burning boiler load carrying test in coal-burning boiler operating condition data, to adjust safety door in described ultra supercritical coal-burning boiler unit, and carry out firing optimization and thermal technology's automatic operation;
Oepration at full load module, for controlling coal-burning boiler oepration at full load Preset Time, gathers coal-burning boiler operating condition data in coal-burning boiler oepration at full load process;
Second adjusting module, for according to coal-burning boiler operating condition data in coal-burning boiler oepration at full load process, carries out firing optimization to ultra supercritical coal-burning boiler unit.
7. ultra supercritical coal-burning boiler unit starting debug system according to claim 6, is characterized in that, also comprise:
Startup analysis module, for analyzing ultra supercritical coal-burning boiler set state, when ultra supercritical coal-burning boiler unit meets condition needed for default startup, Start-up and Adjustment operates, wherein, condition needed for described default startup comprises thermal control and electric condition, civil engineering condition and safety condition.
8. the ultra supercritical coal-burning boiler unit starting debug system according to claim 6 or 7, it is characterized in that, described load test module specifically comprises:
Water pressure test unit, for carrying out upper water and the water pressure test to coal-burning boiler in ultra supercritical coal-burning boiler unit;
Igniting unit, for when the described coal-burning boiler water pressure test is qualified, carries out ignition operation to described coal-burning boiler;
Load test unit, for carrying out the test of coal-burning boiler no-load run and coal-burning boiler load carrying test successively, and to gather in coal-burning boiler no load test coal-burning boiler operating condition data in coal-burning boiler operating condition data and coal-burning boiler load test respectively.
9. ultra supercritical coal-burning boiler unit starting debug system according to claim 8, it is characterized in that, described igniting unit specifically comprises:
Cold conditions cleaning unit, for when the described coal-burning boiler water pressure test is qualified, carries out cold conditions cleaning to described coal-burning boiler;
Hot cleaning unit, for when described coal-burning boiler cold conditions cleaning is qualified, carries out ignition operation to described coal-burning boiler, and carries out hot cleaning.
10. the ultra supercritical coal-burning boiler unit starting debug system according to claim 6 or 7, is characterized in that, also comprise:
Acquisition module, carries out firing optimization data for gathering to ultra supercritical coal-burning boiler unit;
Memory module, for store in coal-burning boiler no load test in coal-burning boiler operating condition data, coal-burning boiler load test in coal-burning boiler operating condition data, coal-burning boiler oepration at full load process coal-burning boiler operating condition data and carry out firing optimization data to ultra supercritical coal-burning boiler unit.
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| CN109253442A (en) * | 2018-09-12 | 2019-01-22 | 国电南京电力试验研究有限公司 | One kind is become a cadre state control method |
| CN109433398A (en) * | 2018-10-24 | 2019-03-08 | 大唐湘潭发电有限责任公司 | Bin storage type pulverizing system boiler residual powder booting fuel saving method |
| CN112502793A (en) * | 2020-11-29 | 2021-03-16 | 国网辽宁省电力有限公司电力科学研究院 | Debugging plan debugging method for professional subsystem of power plant steam turbine |
| CN112502793B (en) * | 2020-11-29 | 2023-06-02 | 国网辽宁省电力有限公司电力科学研究院 | Method for debugging program of specialized subsystem of steam turbine of power plant |
| CN114646051A (en) * | 2022-03-17 | 2022-06-21 | 国网湖南省电力有限公司 | Automatic control method and system for water supply of wet-state operation boiler of supercritical thermal power generating unit |
| CN117991639A (en) * | 2024-01-31 | 2024-05-07 | 中国电力工程顾问集团有限公司 | Multi-target combustion optimization control method and device for coal-fired power plant based on machine learning |
| CN117991639B (en) * | 2024-01-31 | 2024-06-28 | 中国电力工程顾问集团有限公司 | Multi-target combustion optimization control method and device for coal-fired power plant based on machine learning |
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