CN101871652A - Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler - Google Patents
Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler Download PDFInfo
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- CN101871652A CN101871652A CN 201010223423 CN201010223423A CN101871652A CN 101871652 A CN101871652 A CN 101871652A CN 201010223423 CN201010223423 CN 201010223423 CN 201010223423 A CN201010223423 A CN 201010223423A CN 101871652 A CN101871652 A CN 101871652A
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- dislocated
- grate stoker
- industry boiler
- travelling grate
- diffuser grid
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- 239000003245 coal Substances 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000003550 marker Substances 0.000 claims description 5
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000000197 pyrolysis Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses an adjustable dislocated transverse diffuser grid of a travelling grate stoker industry boiler, aiming to provide a mechanism to optimize a travelling grate stoker to have even air distribution in a transverse direction. The key points of the technical scheme are as follows: a plurality blocks of diffuser grids are additionally arranged in wind boxes below a coal combustion dry distillation section and a combustion section to divide the wind boxes into a plurality of regions so as to transfer air amount in a strong air region to a weak air region in the wind box, thereby leading a fire grate to have even air distribution in the transverse direction along the width of the fire grate. The diffuser grids are dislocated in adjacent wind boxes and adopt bolts to adjust heights thereof, the bottom end of each diffuser grid is provided with an elbow, and the top part of each diffuser grid is provided with a rectangular static pressure balance hole. The invention is suitable for the travelling grate stoker industry boiler.
Description
Technical field
The present invention relates to coal-fired chain-grate industrial boiler field of combustion technology, belong to specifically and optimize the uniform a kind of device of traveling-grate stoker cross air dispatching.
Background technology
In " the Eleventh Five-Year Plan ten big emphasis energy conservation project implementation guidelines " of National Development and Reform Committee's in July, 2006 promulgation, point out: " the average operating thermal efficiency of China's coal-burned industrial boiler is 60%-65%; than low 15-20 percentage point of external advanced level, about 400,000,000 tons of annual consumption raw coal ".And propose: the target of " to 11th Five-Year, coal-burned industrial boiler efficient does not on average improve 5 percentage points ".One of reason that coal-fired chain-grate industrial boiler operating thermal efficiency is low is not have the cross air dispatching device in the air compartment of fire grate below, cause the fire grate cross air dispatching inhomogeneous, make coal-fired near burning zone and burning segment composition surface, coal seam along fire grate width middle part burns in advance, and furnace wall both sides or one-sided coal seam form the coal dragon, and coal just is discharged from fire grate without after-flame.
Summary of the invention
The purpose of this invention is to provide a kind of fire grate cross air dispatching that makes installs uniformly.This device reduces the air capacity in high wind district in the air compartment by the adjustable guide functions that is misplaced horizontal airflow fence, makes it be transferred to weak wind district, guarantees the even distribution along fire grate width air mass flow, and the after-flame degree of the vertical coal in fire grate top is identical.
Technical scheme of the present invention provides a kind of adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler device, in the traveling-grate stoker combustion system, and pressure fan, the air channel, controllable register and segmentation air compartment are linked in sequence.This programme installs some airflow fences additional in coal burning retort section and burning zone air compartment, air compartment is divided into some marker spaces along the fire grate width.
The airflow fence position of adjacent plenum is misplaced, and airflow fence can be adjusted its height with bolt, and there is elbow the airflow fence lower end, and the Rectangular Hydrostatic balance pipe is arranged at the airflow fence top.
The invention has the beneficial effects as follows: can make the operating thermal efficiency of coal-burned industrial boiler improve about 2%, energy conservation and environmental protection benefit is preferably arranged.
Description of drawings
Fig. 1 is that retort section and burning zone below air compartment airflow fence are arranged schematic diagram
Fig. 2 is the profile of Fig. 1 A-A
Among the figure: 3 bolts, 4 elbows, the 5 Rectangular Hydrostatic balance pipes 6 of air compartment 1 airflow fence 2 marker spaces
The specific embodiment
Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler, it is to install some airflow fences 2 below coal burning retort section and burning zone in the air compartment 1 additional, air compartment 1 is divided into some marker spaces 3 along the fire grate width, to reduce the air capacity in air compartment high wind district, make it be transferred to weak wind district, guarantee even distribution along fire grate width air mass flow; Airflow fence 2 can be adjusted its height with bolt 4, make the coal seam of marker space obtain identical air mass flow, airflow fence 2 lower ends have elbow 5, enter the separation coal seam with guiding and straightening air-flow, Rectangular Hydrostatic balance pipe 6 is arranged at airflow fence 2 tops, with balance airflow fence both sides differential static pressure, airflow fence 2 positions of adjacent plenum are misplaced, these technical guarantee along the air quantity equilibrium of fire grate width.
The present invention uses in the segmentation air compartment under the chain grate boiler fire grate of prior art.Airflow fence 2 is pressed close to the lower flat of fire grate when installing and using, and keep suitable spacing, the lower end elbow 4 of airflow fence 2 is to the inlet side bending, and the height of every airflow fence 2 is adjusted up and down by the mobility status that enters air in each air compartment 1, makes along the air quantity of fire grate width even.
Claims (5)
1. adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler, in the traveling-grate stoker combustion system, pressure fan, the air channel, controllable register and segmentation air compartment are linked in sequence, it is characterized in that, install some airflow fences (2) in the air compartment below coal burning retort section and burning zone (1) additional, air compartment (1) is divided into some marker spaces (3) along the fire grate width.
2. require described adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler according to right 1, it is characterized in that, the airflow fence of adjacent plenum (2) position is misplaced.
3. require described adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler according to right 1, it is characterized in that, the available bolt of airflow fence (2) (4) is adjusted its height.
4. require described adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler according to right 1, it is characterized in that, there is elbow (5) airflow fence (2) lower end.
5. require described adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler according to right 1, it is characterized in that, Rectangular Hydrostatic balance pipe (6) is arranged at airflow fence (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223423 CN101871652A (en) | 2010-07-09 | 2010-07-09 | Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223423 CN101871652A (en) | 2010-07-09 | 2010-07-09 | Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871652A true CN101871652A (en) | 2010-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010223423 Pending CN101871652A (en) | 2010-07-09 | 2010-07-09 | Adjustable dislocated transverse diffuser grid of travelling grate stoker industry boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871652A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721079A (en) * | 2012-06-12 | 2012-10-10 | 西安交通大学 | Uniform air distribution device for air chamber inlet of grate-fired furnace |
| CN102734827A (en) * | 2012-06-12 | 2012-10-17 | 西安交通大学 | Grate-fired furnace air chamber structure capable of transversely uniformly distributing air |
| CN102878574A (en) * | 2012-10-13 | 2013-01-16 | 大连理工大学 | Boiler air bin air distributing device with built-in flow stabilization and flow shunting and guide functions |
| CN109939542A (en) * | 2017-11-29 | 2019-06-28 | 株式会社示远企业 | Harmful gas processing device with pernicious gas guiding function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191508324A (en) * | 1914-06-22 | 1915-10-14 | Fond Et Ateliers De La Courneu | Improvements in Means for Regulating the Air Supply to Furnaces with Mechanical Grates. |
| US1854162A (en) * | 1926-08-20 | 1932-04-12 | Babcock & Wilcox Co | Chain grate stoker |
| US1904503A (en) * | 1928-05-28 | 1933-04-18 | Babcock & Wilcox Co | Chain grate stoker |
| CN86200461U (en) * | 1986-02-06 | 1987-02-25 | 弓敬之 | Disposing air plant for chain boiler |
| CN2297644Y (en) * | 1997-06-16 | 1998-11-18 | 周新国 | Uniform pressure air regulating device for boiler |
| CN1424538A (en) * | 2002-12-30 | 2003-06-18 | 上海交通大学 | Blowing system of chain boiler with sectorial blow homogenating plate |
| CN1779325A (en) * | 2004-11-23 | 2006-05-31 | 河南大学 | Rotary push-pull chain grate air distribution and air conditioning device |
| CN201715538U (en) * | 2010-07-09 | 2011-01-19 | 上海望特能源科技有限公司 | Adjustable offset lateral diversion grid for chain grate industrial boiler |
-
2010
- 2010-07-09 CN CN 201010223423 patent/CN101871652A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191508324A (en) * | 1914-06-22 | 1915-10-14 | Fond Et Ateliers De La Courneu | Improvements in Means for Regulating the Air Supply to Furnaces with Mechanical Grates. |
| US1854162A (en) * | 1926-08-20 | 1932-04-12 | Babcock & Wilcox Co | Chain grate stoker |
| US1904503A (en) * | 1928-05-28 | 1933-04-18 | Babcock & Wilcox Co | Chain grate stoker |
| CN86200461U (en) * | 1986-02-06 | 1987-02-25 | 弓敬之 | Disposing air plant for chain boiler |
| CN2297644Y (en) * | 1997-06-16 | 1998-11-18 | 周新国 | Uniform pressure air regulating device for boiler |
| CN1424538A (en) * | 2002-12-30 | 2003-06-18 | 上海交通大学 | Blowing system of chain boiler with sectorial blow homogenating plate |
| CN1779325A (en) * | 2004-11-23 | 2006-05-31 | 河南大学 | Rotary push-pull chain grate air distribution and air conditioning device |
| CN201715538U (en) * | 2010-07-09 | 2011-01-19 | 上海望特能源科技有限公司 | Adjustable offset lateral diversion grid for chain grate industrial boiler |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721079A (en) * | 2012-06-12 | 2012-10-10 | 西安交通大学 | Uniform air distribution device for air chamber inlet of grate-fired furnace |
| CN102734827A (en) * | 2012-06-12 | 2012-10-17 | 西安交通大学 | Grate-fired furnace air chamber structure capable of transversely uniformly distributing air |
| CN102721079B (en) * | 2012-06-12 | 2014-08-06 | 西安交通大学 | Uniform air distribution device for air chamber inlet of grate-fired furnace |
| CN102878574A (en) * | 2012-10-13 | 2013-01-16 | 大连理工大学 | Boiler air bin air distributing device with built-in flow stabilization and flow shunting and guide functions |
| CN109939542A (en) * | 2017-11-29 | 2019-06-28 | 株式会社示远企业 | Harmful gas processing device with pernicious gas guiding function |
| CN109939542B (en) * | 2017-11-29 | 2021-12-10 | 株式会社示远企业 | Harmful gas processing device with harmful gas guide function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101027 |