CN108518664A - One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical - Google Patents

One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical Download PDF

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Publication number
CN108518664A
CN108518664A CN201810553117.0A CN201810553117A CN108518664A CN 108518664 A CN108518664 A CN 108518664A CN 201810553117 A CN201810553117 A CN 201810553117A CN 108518664 A CN108518664 A CN 108518664A
Authority
CN
China
Prior art keywords
economizer
superheater
boiler
reheater
burner hearth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810553117.0A
Other languages
Chinese (zh)
Inventor
龙志云
商宇薇
孙洪民
王永杰
黄必重
胡双南
司石默
贾清泉
高雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Boiler Co Ltd
Original Assignee
Harbin Boiler Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Boiler Co Ltd filed Critical Harbin Boiler Co Ltd
Priority to CN201810553117.0A priority Critical patent/CN108518664A/en
Publication of CN108518664A publication Critical patent/CN108518664A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/22Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22GSUPERHEATING OF STEAM
    • F22G1/00Steam superheating characterised by heating method
    • F22G1/02Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00Heating of air supplied for combustion
    • F23L15/04Arrangements of recuperators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

One kind of the present invention being related to a kind of boiler with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, and in particular to a kind of tower boiler using damper adjustment.It is difficult the problem of so that reheater is reached design value that purpose, which is in order to which the original boiler overcome adjusts steam steam temperature means, it provides a kind of with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler body, economizer system, superheater system and reheater system are equipped in the burner hearth of the boiler body, the advantage of the more traditional level-one economizer arrangement of arrangement of the economizer system of the present invention is to ensure that boiler full load throws denitration, the efficiency of raising boiler controller system entirety;Two-stage superheater is arranged in before midfeather, by gas proportioning damper come adjust the flue gas ratio between superheater and reheater be finally reached adjust steam steam temperature purpose, more can guarantee that reheater reaches design value.

Description

One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical
Technical field
The present invention relates to a kind of boilers, and in particular to a kind of tower boiler using damper adjustment.
Background technology
The lignite resource rich reserves in China, fan mill have good adaptability for high water content brown coal.And tower pot Stove is more suitable for the arrangement of fan mill, but tower boiler at this stage, using watering temperature adjustment mode, but adopts With the boiler of watering temperature adjustment, this regulative mode is difficult that reheater is made to reach design value;And traditional economizer arrangement, only Level-one is arranged, can not ensure that full load throws denitration, inefficiency.
Invention content
It is difficult that reheater is made to reach design to adjust steam steam temperature means the purpose of the invention is to the original boiler overcome The problem of value, provides a kind of with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical.
One kind of the present invention matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler sheet Body, the burner hearth of the boiler body is interior to be equipped with economizer system, superheater system and reheater system, and the top of burner hearth is equipped with isolation Wall, for flue gas to be divided into two-way;The top of divider wall is equipped with gas proportioning damper, the flue gas ratio for adjusting divider wall both sides Example;
Economizer system includes burner hearth economizer and flue economizer, and burner hearth economizer and flue economizer pass through economizer Connecting tube connects;Burner hearth economizer is set between divider wall and gas proportioning damper, and flue economizer is set to denitration SCR reactors In exhaust pass;The stove internal heating surface of the economizer system is in-line arrangement;
Superheater system includes primary superheater, two-stage superheater and three-stagesuperheater and primary superheater, secondary superheater Device passes sequentially through superheater connecting tube with three-stagesuperheater and connects;
Primary superheater includes primary superheater entrance tube panel and primary superheater outlet tube panel;Primary superheater inlet tube The first order for the lower furnace portion that screen is set between burner hearth economizer and gas proportioning damper, primary superheater outlet tube panel is set to is changed At hot face;
Reheater system includes level-one reheater and final reheater and level-one reheater and final reheater pass through reheating Device connecting tube connects;
Primary superheater export tube panel top along flue gas flow direction successively be equipped with three-stagesuperheater, final reheater and every From wall, the side of the divider wall is equipped with two-stage superheater, the other side is equipped with level-one reheater.
The beneficial effects of the invention are as follows:
1, the advantage of the more traditional level-one economizer arrangement of the arrangement of economizer system is to ensure that boiler full load is thrown Denitration improves the efficiency of boiler controller system entirety;
2, two-stage superheater is arranged in before midfeather, by gas proportioning damper come adjust superheater and reheater it Between flue gas ratio come be finally reached adjust steam steam temperature purpose, more can guarantee that reheater reaches design value, relative to original For single burner swing temperature adjustment and watering temperature adjustment mode, this scheme enriches the regulating measure of reheater steam temperature.
Description of the drawings
Fig. 1 is a kind of structure with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical of the present invention Schematic diagram.
Specific implementation mode
Specific implementation mode one
One kind of the present invention matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler sheet Body, is equipped with economizer system, superheater system and reheater system in the burner hearth 1 of the boiler body, the top of burner hearth 1 be equipped with every From wall 2, for flue gas to be divided into two-way;The top of divider wall 2 is equipped with gas proportioning damper 3, for adjusting 2 both sides of divider wall Flue gas ratio;
Economizer system includes burner hearth economizer 4 and flue economizer 5, and burner hearth economizer 4 and flue economizer 5 pass through province Coal device connecting tube connects;Burner hearth economizer 4 is set between divider wall 2 and gas proportioning damper 3, and flue economizer 5 is set to denitration In SCR reactor outlets flue 6;The stove internal heating surface of the economizer system is in-line arrangement;
Superheater system includes primary superheater 7, two-stage superheater 8 and three-stagesuperheater 9 and primary superheater 7, two level Superheater 8 passes sequentially through superheater connecting tube with three-stagesuperheater 9 and connects;
Primary superheater 7 includes that primary superheater entrance tube panel 10 and primary superheater export tube panel 11;Primary superheater The burner hearth 1 that entrance tube panel 10 is set between burner hearth economizer 4 and gas proportioning damper 3, primary superheater outlet tube panel 11 is set to At the first order heat-transfer surface of lower part;
Primary superheater 7 includes that primary superheater entrance tube panel 10 and primary superheater export tube panel 11, is arranged in burner hearth At top or furnace outlet smokestack, the direct radiant heat in stove was not only received, but also absorb the heating surface of the advection heat of flue gas.Level-one mistake Relatively large distance is kept between hot device entrance tube panel 10 and primary superheater outlet 11 liang of screens of tube panel, reduction furnace outlet flue gas can be played The effect of temperature and crust block prevents subsequent Boiler Heating Surfaces.High superheated steam temperature can be born, practical and stable, the service life It is long.
Reheater system includes level-one reheater 13 and final reheater 12 and level-one reheater 13 and final reheater 12 It is connected by reheater connecting tube;
The top that primary superheater exports tube panel 11 is equipped with three-stagesuperheater 9, final reheater successively along the flow direction of flue gas 12 and divider wall 2, the side of the divider wall 2 is equipped with two-stage superheater 8, the other side is equipped with level-one reheater 13.
Superheater system is used to steam being further heated to overtemperature from saturation temperature, reheater system by steam from The intergrade of steam turbine is drawn, and is reheated.Meanwhile divider wall 2 is equipped in burner hearth, it is separated out former and later two in burner hearth Vertical shaft, and two-stage superheater 8 is mounted on the side (on front side of burner hearth) of divider wall 2, and level-one reheater 13 is mounted on divider wall 2 The other side (on rear side of burner hearth), 2 top of divider wall are equipped with gas proportioning damper 3, which is driven by transmission mechanism Coordinate and level of coverage of the gas proportioning damper 3 to 2 both sides of divider wall is controlled by outworker, and then adjusts isolation The flue gas ratio of 2 both sides of wall.
By adjusting the flue gas ratio of 2 both sides of divider wall, the two-stage superheater 8 and level-one of 2 both sides of divider wall can be adjusted Steam steam temperature in reheater 13.
Specific implementation mode two
Difference lies in primary superheater entrance tube panel 10 and level-ones with specific implementation mode one for present embodiment two Superheater outlet tube panel 11 is connected and fixed by hanging pipe.
Specific implementation mode three
Difference lies in burner hearth 1 includes water screen system, water-cooling wall to present embodiment three with specific implementation mode one System includes Spiral Coil Waterwall 14 and vertical water wall 15, Spiral Coil Waterwall 14 as burner hearth 1 middle part and Lower part, top of the vertical water wall 15 as burner hearth 1, and between Spiral Coil Waterwall 14 and vertical water wall 15 It is connected by mixing header.
Burner hearth is surrounded by water screen system, which includes two parts, i.e. vertical water wall 15 and spiral Pipeloop water-cooling wall 14, one mixing header of the two are boundary.
Specific implementation mode four
Difference lies in go back activation system, the activation system to present embodiment four with specific implementation mode one or three Including starting separator 19, water storage tank, air flash vessel and drain tank, the one end and superheater system for starting separator 19 connect It connects, the other end and water storage tank, air flash vessel, drain tank are sequentially connected.
Activation system connects water screen system and superheater system, is used for the underrun of boiler.
Specific implementation mode five
Difference lies in go back combustion system, the combustion system to present embodiment five with specific implementation mode one or three Including main burner 17 and separation burnout degree SOFA burners 18, main burner 17 and SOFA burners 18 are set under burner hearth Portion and SOFA burners 18 are located at the top of main burner 17.
Combustion system is set to the corner for the burner hearth that water screen system is surrounded, and flame is fired in freeze profile at the octagonal circle of contact It burns.
Specific implementation mode six
Difference lies in further include air preheater 20, cigarette to present embodiment six with specific implementation mode one or three Road and air duct 22, flue and air duct 22 connect with air preheater 20 and in air duct 22 air by air preheater 20 with Flue gas heat exchange in flue.
Specific implementation mode seven
Difference lies in three-stagesuperheater 9 and final stage reheating with specific implementation mode one or three for present embodiment eight Device 12 is arranged in the high smoke temperature area of burner hearth 1.
Above-mentioned high smoke temperature area is located at the top of the first order heat-transfer surface of burner hearth.
The invention also includes flue gas recirculation system, including high-temperature flue gas recirculating gas duct 23 and exporting cigarette from preheater The low-temperature flue gas recirculating gas duct that deduster rear pass after road 16 is drawn.

Claims (7)

1. one kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler body, the boiler Economizer system, superheater system and reheater system are equipped in the burner hearth (1) of ontology, which is characterized in that
The top of burner hearth (1) is equipped with divider wall (2), for flue gas to be divided into two-way;The top of divider wall (2) is adjusted equipped with flue gas Baffle (3), the flue gas ratio for adjusting divider wall (2) both sides;
Economizer system includes burner hearth economizer (4) and flue economizer (5), and burner hearth economizer (4) and flue economizer (5) are logical Cross the connection of economizer connecting tube;Burner hearth economizer (4) is set between divider wall (2) and gas proportioning damper (3), flue economizer (5) it is set in denitration SCR reactor outlets flue (6);The stove internal heating surface of the economizer system is in-line arrangement;
Superheater system include primary superheater (7), two-stage superheater (8) and three-stagesuperheater (9) and primary superheater (7), Two-stage superheater (8) passes sequentially through superheater connecting tube with three-stagesuperheater (9) and connects;
Primary superheater (7) includes primary superheater entrance tube panel (10) and primary superheater outlet tube panel (11);Level-one overheats Device entrance tube panel (10) is set between burner hearth economizer (4) and gas proportioning damper (3), primary superheater outlet tube panel (11) is set In burner hearth (1) lower part first order heat-transfer surface at;
Reheater system includes level-one reheater (13) and final reheater (12) and level-one reheater (13) and final reheater (12) it is connected by reheater connecting tube;
The top that primary superheater exports tube panel (11) is equipped with three-stagesuperheater (9), final reheater successively along the flow direction of flue gas (12) and divider wall (2), the side of the divider wall (2) are equipped with two-stage superheater (8), the other side equipped with level-one reheater (13).
2. one kind according to claim 1 matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, It is characterized in that, primary superheater entrance tube panel (10) and primary superheater outlet tube panel (11) are connected and fixed by hanging pipe.
3. one kind according to claim 1 matches the big tower damper adjustment boiler using brown coal of the efficient ultra supercritical of 1 capacity of fan mill, It is characterized in that, burner hearth (1) includes water screen system, water screen system includes Spiral Coil Waterwall (14) and vertical tube coil water Cold wall (15), middle part and lower part of the Spiral Coil Waterwall (14) as burner hearth (1), vertical water wall (15) are used as burner hearth (1) top, and connected by mixing header between Spiral Coil Waterwall (14) and vertical water wall (15).
4. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical Stove, which is characterized in that further include activation system, the activation system include start separator (19), water storage tank, air flash vessel and Drain tank, the one end for starting separator (19) connect with superheater system, the other end and water storage tank, air flash vessel, drain tank It is sequentially connected.
5. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical Stove, which is characterized in that further include combustion system, which includes main burner (17) and separation burnout degree SOFA burners (18), main burner (17) and SOFA burners (18) are set to the lower part of burner hearth and SOFA burners (18) are located at main burning The top of device (17).
6. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical Stove, which is characterized in that further include air and gas system, which includes air preheater (20), flue and air duct (22), flue It is connect with air preheater (20) with air duct (22) and air duct (22) interior air passes through cigarette in air preheater (20) and flue Gas exchanges heat.
7. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical Stove, which is characterized in that three-stagesuperheater (9) and final reheater (12) are arranged in the high smoke temperature area of burner hearth (1).
CN201810553117.0A 2018-05-31 2018-05-31 One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical Pending CN108518664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810553117.0A CN108518664A (en) 2018-05-31 2018-05-31 One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical

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Application Number Priority Date Filing Date Title
CN201810553117.0A CN108518664A (en) 2018-05-31 2018-05-31 One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442375A (en) * 2018-10-09 2019-03-08 中国神华能源股份有限公司 Boiler system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442375A (en) * 2018-10-09 2019-03-08 中国神华能源股份有限公司 Boiler system

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