CN107327841B - Air distribution plate assembly of circulating fluidized bed boiler - Google Patents

Air distribution plate assembly of circulating fluidized bed boiler Download PDF

Info

Publication number
CN107327841B
CN107327841B CN201710433772.8A CN201710433772A CN107327841B CN 107327841 B CN107327841 B CN 107327841B CN 201710433772 A CN201710433772 A CN 201710433772A CN 107327841 B CN107327841 B CN 107327841B
Authority
CN
China
Prior art keywords
wind
air
rod
cap cover
distribution plate
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.)
Active
Application number
CN201710433772.8A
Other languages
Chinese (zh)
Other versions
CN107327841A (en
Inventor
王玉壁
姚精勤
古龙
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.)
Guangzhou Jinshi Electric Power Technology Co ltd
Original Assignee
Guangzhou Jinshi Electric Power Technology 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 Guangzhou Jinshi Electric Power Technology Co ltd filed Critical Guangzhou Jinshi Electric Power Technology Co ltd
Priority to CN201710433772.8A priority Critical patent/CN107327841B/en
Publication of CN107327841A publication Critical patent/CN107327841A/en
Application granted granted Critical
Publication of CN107327841B publication Critical patent/CN107327841B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories
    • F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2206/00—Fluidised bed combustion
    • F23C2206/10—Circulating fluidised bed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

An air distribution plate assembly of a circulating fluidized bed boiler is characterized in that an air rod is fixed on the air distribution plate, and an air cap cover is sleeved outside the air rod; the middle lower part of the wind rod is provided with a boss for fixing the wind distribution plate, the middle part of the wind rod is provided with a supporting table for supporting the lower edge of the wind cap cover, the upper part of the wind rod is provided with a wind hole, the top part of the wind rod is provided with a sealing table which is matched and sealed with a sealing groove at the upper part of the wind cap cover, the central position of the top end of the wind rod is provided with a connecting device, and the connecting device penetrates through a connecting hole reserved at the top of the wind cap cover and is fixed; when the wind power generation device is assembled, the connecting device passes through the connecting hole to be fastened, and meanwhile, the lower edge of the wind cap cover is respectively embedded into the supporting table, and the sealing table at the top of the wind rod is embedded into the sealing groove at the upper part of the wind cap cover to be sealed; the invention does not adopt a welding mode to connect the air cap cover and the air bar, and is more labor-saving, material-saving, convenient and quick in installation; the nut is only required to be disassembled for replacing the hood, so that the cost of disassembling the whole hood and masonry materials is greatly saved.

Description

Air distribution plate assembly of circulating fluidized bed boiler
Technical Field
The invention belongs to the field of circulating fluidized bed boilers, and particularly relates to a circulating fluidized bed boiler air distribution plate assembly.
Background
The hood is an important part of the circulating fluidized bed boiler, determines whether the circulating fluidized bed boiler can safely, economically and stably operate, and most of the hoods in CFB boiler air distribution plate assemblies at present adopt bell-type hoods which are composed of hood covers and wind bars, and conventionally adopt a mode that the lower edges of the hood covers are in spot welding connection with the wind bars (or wind bar bosses). Because the wind rod and the wind cap cover are castings, two problems exist in welding, namely, the castings are easy to crack and are not firm in welding; and secondly, when the hood is removed, replaced or checked, the hood can be taken down after the welding point is cleaned, and alloy welding rods are generally used for welding, so that the hood is difficult to polish. On the other hand, the blast cap is worn and needs to be replaced regularly, and the blast cap is generally processed by adopting a mode of knocking by a large hammer and dismantling the air distribution plate masonry material during replacement, so that the workload is high, and the cost for repairing the masonry material is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the circulating fluidized bed boiler air distribution plate assembly so as to solve the problem of the traditional spot welding connection mode of the air cap cover and the air rod and further reduce the cost of replacing the air cap.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the air distribution plate assembly of the circulating fluidized bed boiler comprises an air distribution plate 13, an air rod 12 is fixed on the air distribution plate 13, and an air cap cover 11 is sleeved outside the air rod 12; the middle lower part of the wind rod 12 is provided with a boss 125 for fixing a wind distribution plate, the middle part of the wind rod 12 is provided with a supporting table 123 for bearing the lower edge of the wind cap 11, the upper part of the wind rod 12 is provided with a wind hole 121, the top of the wind rod 12 is provided with a sealing table 122 which is matched and sealed with the sealing groove 112 on the upper part of the wind cap 11, the center position of the top end of the wind rod 12 is provided with a connecting device 124, and the connecting device 124 penetrates through the connecting hole 114 reserved at the top of the wind cap 11 and is fixed.
The lower edge of the hood 11 is provided with a lower edge seal 113, and the lower edge seal 113 is matched with an inner wall seal groove 1231 of the air rod supporting table 123.
A protection table 115 is arranged around the connecting hole 114 reserved at the top of the hood 11.
The invention does not adopt a welding mode to connect the air cap cover and the air bar, and is more labor-saving, material-saving, convenient and quick in installation; the nut is only required to be disassembled for replacing the hood, so that the cost of disassembling the whole hood and masonry materials is greatly saved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the wind pole 12 of the present invention.
Fig. 3 is a schematic view of the structure of the hood 11 of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in FIG. 1, the air distribution plate assembly of the circulating fluidized bed boiler comprises an air distribution plate 13, an air rod 12 is fixed on the air distribution plate 13, and an air cap cover 11 is sleeved outside the air rod 12;
as shown in fig. 2, a boss 125 for fixing a wind distribution plate is arranged at the middle lower part of the wind rod 12, a supporting table 123 for supporting the lower edge of the wind cap cover 11 is arranged at the middle part of the wind rod 12, a wind hole 121 is arranged at the upper part of the wind rod 12, a sealing table 122 is arranged at the top of the wind rod 12 and is matched and sealed with a sealing groove 112 at the upper part of the wind cap cover 11, so that no wind leakage is ensured at a wind cap perforation 114; the center of the top end of the wind rod 12 is provided with a connecting device 124, and the connecting device 124 passes through a connecting hole 114 reserved at the top of the wind cap 11 and is fixed.
The lower edge of the hood 11 is provided with a lower edge seal 113, and the lower edge seal 113 is matched with an inner wall seal groove 1231 of the air rod supporting table 123 to prevent internal wind from leaking.
A protection table 115 is provided around the connection hole 114 reserved at the top of the hood 11, and serves to protect the connection device 124 passing therethrough from abrasion.
As shown in fig. 3, the lower part of the body of the hood 11 is provided with a conventional air outlet 111, the top is provided with a sealing groove 112 and a connecting hole 114, and a protection table 115 is arranged around the connecting hole 114.
The used component materials are required to have the characteristics of high temperature resistance and wear resistance.
The working principle of the invention is as follows:
when assembled, the bolts 1241 of the connecting device 124 are inserted through the connecting holes 114 and fastened by nuts 1242, and at the same time, the hood lower edge 113 is respectively inserted into the inner wall seal groove 1231 of the bracket 123 and the seal table 122 on the top of the wind rod 12 is inserted into the seal groove 112 on the upper part of the hood 11 to seal.
The invention does not adopt a welding mode to connect the air cap cover and the air bar, and is more labor-saving, material-saving, convenient and quick in installation; the nut is only required to be disassembled for replacing the hood, so that the cost of disassembling the whole hood and masonry materials is greatly saved.

Claims (1)

1. The air distribution plate assembly of the circulating fluidized bed boiler comprises an air distribution plate (13), an air rod (12) is fixed on the air distribution plate (13), and an air cap cover (11) is sleeved outside the air rod (12); the wind power generation device is characterized in that a boss (125) for fixing a wind distribution plate is arranged at the middle lower part of a wind pole (12), a supporting table (123) for bearing the lower edge of a wind cap cover (11) is arranged at the middle part of the wind pole (12), a wind hole (121) is formed in the upper part of the wind pole (12), a sealing table (122) is arranged at the top of the wind pole (12) and is matched and sealed with a sealing groove (112) at the upper part of the wind cap cover (11), a connecting device (124) is arranged at the central position of the top end of the wind pole (12), and the connecting device (124) penetrates through a connecting hole (114) reserved at the top of the wind cap cover (11) and is fixed;
the lower edge of the hood cover (11) is provided with a lower edge seal (113), and the lower edge seal (113) is matched with an inner wall sealing groove (1231) of the air rod supporting table (123);
a protection table (115) is arranged around a connecting hole (114) reserved at the top of the hood cover (11).
CN201710433772.8A 2017-06-09 2017-06-09 Air distribution plate assembly of circulating fluidized bed boiler Active CN107327841B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710433772.8A CN107327841B (en) 2017-06-09 2017-06-09 Air distribution plate assembly of circulating fluidized bed boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710433772.8A CN107327841B (en) 2017-06-09 2017-06-09 Air distribution plate assembly of circulating fluidized bed boiler

Publications (2)

Publication Number Publication Date
CN107327841A CN107327841A (en) 2017-11-07
CN107327841B true CN107327841B (en) 2023-07-14

Family

ID=60195117

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710433772.8A Active CN107327841B (en) 2017-06-09 2017-06-09 Air distribution plate assembly of circulating fluidized bed boiler

Country Status (1)

Country Link
CN (1) CN107327841B (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411757A1 (en) * 1983-04-05 1984-10-11 HRI, Inc., Gibbsboro, N.J. GRID PLATE STRUCTURE FOR A FLUID BED REACTOR
CN201412835Y (en) * 2009-06-12 2010-02-24 瓮福（集团）有限责任公司 Windshield combination of circulating fluidized bed boilers
CN201455615U (en) * 2009-07-03 2010-05-12 郑州神牛铸造有限公司 Funnel removing device of fluid-bed boiler
CN101725967A (en) * 2009-12-28 2010-06-09 上海锅炉厂有限公司 Threaded connection detachable wind cap
CN201964398U (en) * 2011-01-27 2011-09-07 太原锅炉集团有限公司 Bell jar type blast cap
CN201983258U (en) * 2011-01-27 2011-09-21 郑州锅炉股份有限公司 Fluidized bed wind cap easy to exchange
CN102537946A (en) * 2010-12-15 2012-07-04 中国科学院工程热物理研究所 Double-throttling embedded columnar ballistic cap
CN203052650U (en) * 2012-12-28 2013-07-10 河北师范大学 Hood and air duct combined device
CN103240038A (en) * 2012-02-03 2013-08-14 中国石油化工股份有限公司 Gas distributor for slurry bed reactor
CN203177163U (en) * 2013-04-09 2013-09-04 武汉凯迪工程技术研究总院有限公司 Outer hexagonal air cap of circulating fluidized bed boiler
CN203784937U (en) * 2014-03-19 2014-08-20 南京凯盛开能环保能源有限公司 Dismountable rotating abrasion-proof fluidized bed boiler hood
CN104174339A (en) * 2013-05-22 2014-12-03 中石化洛阳工程有限公司 Gas distributor for slurry bed reactor
CN105090942A (en) * 2015-08-19 2015-11-25 河南科技大学 Micro orientation wind cap device
CN106122952A (en) * 2016-08-17 2016-11-16 山西平朔煤矸石发电有限责任公司 A kind of CFB boiler nested type blast cap air-distribution device and remodeling method thereof
CN207179647U (en) * 2017-06-09 2018-04-03 广州市斤石电力科技有限公司 CFBB air distribution plate component

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411757A1 (en) * 1983-04-05 1984-10-11 HRI, Inc., Gibbsboro, N.J. GRID PLATE STRUCTURE FOR A FLUID BED REACTOR
CN201412835Y (en) * 2009-06-12 2010-02-24 瓮福（集团）有限责任公司 Windshield combination of circulating fluidized bed boilers
CN201455615U (en) * 2009-07-03 2010-05-12 郑州神牛铸造有限公司 Funnel removing device of fluid-bed boiler
CN101725967A (en) * 2009-12-28 2010-06-09 上海锅炉厂有限公司 Threaded connection detachable wind cap
CN102537946A (en) * 2010-12-15 2012-07-04 中国科学院工程热物理研究所 Double-throttling embedded columnar ballistic cap
CN201983258U (en) * 2011-01-27 2011-09-21 郑州锅炉股份有限公司 Fluidized bed wind cap easy to exchange
CN201964398U (en) * 2011-01-27 2011-09-07 太原锅炉集团有限公司 Bell jar type blast cap
CN103240038A (en) * 2012-02-03 2013-08-14 中国石油化工股份有限公司 Gas distributor for slurry bed reactor
CN203052650U (en) * 2012-12-28 2013-07-10 河北师范大学 Hood and air duct combined device
CN203177163U (en) * 2013-04-09 2013-09-04 武汉凯迪工程技术研究总院有限公司 Outer hexagonal air cap of circulating fluidized bed boiler
CN104174339A (en) * 2013-05-22 2014-12-03 中石化洛阳工程有限公司 Gas distributor for slurry bed reactor
CN203784937U (en) * 2014-03-19 2014-08-20 南京凯盛开能环保能源有限公司 Dismountable rotating abrasion-proof fluidized bed boiler hood
CN105090942A (en) * 2015-08-19 2015-11-25 河南科技大学 Micro orientation wind cap device
CN106122952A (en) * 2016-08-17 2016-11-16 山西平朔煤矸石发电有限责任公司 A kind of CFB boiler nested type blast cap air-distribution device and remodeling method thereof
CN207179647U (en) * 2017-06-09 2018-04-03 广州市斤石电力科技有限公司 CFBB air distribution plate component

Also Published As

Publication number Publication date
CN107327841A (en) 2017-11-07

Similar Documents

Publication Publication Date Title
CN204100783U (en) Rotary kiln hermetically-sealed construction
CN101935724A (en) Protection device of water inlet/outlet pipe of cooling wall
CN107327841B (en) Air distribution plate assembly of circulating fluidized bed boiler
CN104399581A (en) Semi-shaft type magnetic separator drum with compact end cover
CN205669501U (en) Exhaust fan
CN210981629U (en) Novel pressure gauge cover
CN209325771U (en) A kind of easily changeable boiler grid plate hood for circulating fluid bed
CN204320472U (en) A kind of drums for magnetic separation machine with the semi-shaft type that compression type end cap is installed
CN204944274U (en) Nonmetallic heat exchanger heat exchanger tube supporting construction
CN206786094U (en) A kind of side valve cap valve
CN201864735U (en) Protecting device for water inlet-outlet pipe on cooling wall
CN203893163U (en) Bell jar type air cap of circulating fluidized bed boiler
CN209178333U (en) A kind of big-gear-ring inner-transmission furnace furnace bottom assembly sealing structure
CN203068498U (en) Wearing sleeves of boiler hood
CN204372953U (en) Chimney
CN219222847U (en) Anti-condensation water wall-mounted boiler
CN204646732U (en) Vertical-type air bells exhauster
CN215723175U (en) Air inlet hood for circulating fluidized bed
CN203478935U (en) Head kiln protective opening device of large-scale rotary kiln
CN214999362U (en) Sealing device for heating surface at tail part of boiler
CN108640540A (en) A kind of explosion-proof energy conservation and environmental protection lime burner furnace
CN209054962U (en) A kind of Brown Alundum smelting furnace smokejack Special cooling device
CN213537973U (en) Conveniently fixed blast furnace tuyere air supply device
CN206816876U (en) A kind of three-way diverter valve cylinder valve rod device
CN108458594A (en) Double seal inside and outside a kind of sinter cooler petticoat pipe

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant