CN105864818A - Manhole door structure of pulverized coal boiler - Google Patents
Manhole door structure of pulverized coal boiler Download PDFInfo
- Publication number
- CN105864818A CN105864818A CN201610276722.9A CN201610276722A CN105864818A CN 105864818 A CN105864818 A CN 105864818A CN 201610276722 A CN201610276722 A CN 201610276722A CN 105864818 A CN105864818 A CN 105864818A
- Authority
- CN
- China
- Prior art keywords
- insulation material
- thermal insulation
- door structure
- manhole door
- refractory bricks
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M7/00—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a manhole door structure of a pulverized coal boiler. The manhole door structure comprises refractory bricks, thermal insulation concrete is arranged on the two sides of the refractory bricks and is coated with thermal insulation material layers, one ends of the thermal insulation material layers extend to the side surfaces of the refractory bricks, and the end faces of the refractory bricks are flush with the surfaces of the thermal insulation material layers. According to the manhole door structure, the original inclination design of thermal insulation steel plates of manhole doors are eliminated, the thermal insulation material layers extend to the side surfaces of the refractory bricks, the end faces of the refractory bricks are flush with the surfaces of the thermal insulation material layers, high-temperature flames only can be jetted to the end faces of the refractory bricks and the surfaces of the thermal insulation material layers and are prevented from baking a combustor shell, and therefore the safety factor is high, and the service life of the manhole doors is greatly prolonged.
Description
Technical field
The present invention relates to pulverized-coal fired boiler technical field, especially, relate to a kind of pulverized-coal fired boiler manhole door structure.
Background technology
Referring to Fig. 1, existing pulverized-coal fired boiler manhole door structure generally comprises refractory brick, and the both sides of refractory brick are respectively provided with heat insulated concrete, and heat insulated concrete covers thermal insulating steel plate, and heat insulation steel plate is inclined at an angle setting.In such an embodiment, heat insulation steel plate is the weakest with the binding site of refractory brick, and during igniting, the thermal-flame of oil gun ejection is directly to manhole, therefore the position being often combined with refractory brick by heat insulation steel plate is burnt red, causes the damage sealing structure, has the biggest potential safety hazard.
Summary of the invention
Present invention aim at providing a kind of pulverized-coal fired boiler manhole door structure, to solve in prior art, the position that heat insulation steel plate is combined with refractory brick is burnt red, causes the damage sealing structure, the problem with potential safety hazard.
For achieving the above object, the present invention provides a kind of pulverized-coal fired boiler manhole door structure, including refractory brick, the both sides of described refractory brick are respectively provided with heat insulated concrete, described heat insulated concrete surface be coated with insulation material layer, one end of described adiabator layer extends to the flush of the side of described refractory brick, the end face of described refractory brick and described insulation material layer.
Further, described insulation material layer is corundum-mullite castable.
Further, the thickness of described corundum-mullite castable is 10cm-15cm.
The method have the advantages that
This manhole door structure eliminates the inclined design of the heat insulation steel plate of original manhole door, insulation material layer extends to the side of refractory brick, the end face of refractory brick and the flush of insulation material layer, thermal-flame only can be ejected into the end face of refractory brick and the surface of insulation material layer, prevent flame baking burner housing, there is the highest safety coefficient, be greatly prolonged the service life of manhole door.
Accompanying drawing explanation
Below with reference to figure, the present invention is further detailed explanation.The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of manhole door in prior art；And
Fig. 2 is the structural representation of pulverized-coal fired boiler manhole door structure preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Refer to Fig. 2, the preferred embodiments of the present invention provide a kind of pulverized-coal fired boiler manhole door structure, including refractory brick 11, the both sides of described refractory brick 11 are respectively provided with heat insulated concrete 10, described heat insulated concrete 10 surface be coated with insulation material layer 12, one end of described adiabator layer 12 extends to the flush of the side of described refractory brick 11, the end face of described refractory brick 11 and described insulation material layer 12.This manhole door structure eliminates the inclined design of the heat insulation steel plate of original manhole door, insulation material layer 12 extends to the side of refractory brick 11, the end face of refractory brick 11 and the flush of insulation material layer 12, thermal-flame only can be ejected into the end face of refractory brick 11 and the surface of insulation material layer 12, prevent flame baking burner housing, there is the highest safety coefficient, be greatly prolonged the service life of manhole door.
Preferably, for ensureing the resistance to elevated temperatures of insulation material layer 12, described insulation material layer 12 is corundum-mullite castable.Further, the thickness of described corundum-mullite castable is 10cm-15cm.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention；For a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (3)
1. a pulverized-coal fired boiler manhole door structure, including refractory brick, the both sides of described refractory brick are respectively provided with heat insulated concrete, it is characterized in that: described heat insulated concrete surface be coated with insulation material layer, one end of described adiabator layer extends to the flush of the side of described refractory brick, the end face of described refractory brick and described insulation material layer.
Pulverized-coal fired boiler manhole door structure the most according to claim 1, it is characterised in that:
Described insulation material layer is corundum-mullite castable.
Pulverized-coal fired boiler manhole door structure the most according to claim 2, it is characterised in that:
The thickness of described corundum-mullite castable is 10cm-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276722.9A CN105864818A (en) | 2016-04-29 | 2016-04-29 | Manhole door structure of pulverized coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276722.9A CN105864818A (en) | 2016-04-29 | 2016-04-29 | Manhole door structure of pulverized coal boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105864818A true CN105864818A (en) | 2016-08-17 |
Family
ID=56629723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610276722.9A Pending CN105864818A (en) | 2016-04-29 | 2016-04-29 | Manhole door structure of pulverized coal boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864818A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412865Y (en) * | 2009-06-30 | 2010-02-24 | 中冶集团华冶资源开发有限责任公司 | Manhole door structure of starting burner |
| EP2184541A1 (en) * | 2008-10-10 | 2010-05-12 | Termorak Oy | Shield for preventing heat transfer |
| CN202166077U (en) * | 2011-07-11 | 2012-03-14 | 张家港格林沙洲锅炉有限公司 | Membrane wall water tube boiler inspection door structure |
| CN202809890U (en) * | 2012-08-23 | 2013-03-20 | 国基建设集团有限公司 | Insulating concrete exterior wall structure |
| CN204201882U (en) * | 2014-10-30 | 2015-03-11 | 南通万达锅炉有限公司 | Manhole inspection door device |
-
2016
- 2016-04-29 CN CN201610276722.9A patent/CN105864818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2184541A1 (en) * | 2008-10-10 | 2010-05-12 | Termorak Oy | Shield for preventing heat transfer |
| CN201412865Y (en) * | 2009-06-30 | 2010-02-24 | 中冶集团华冶资源开发有限责任公司 | Manhole door structure of starting burner |
| CN202166077U (en) * | 2011-07-11 | 2012-03-14 | 张家港格林沙洲锅炉有限公司 | Membrane wall water tube boiler inspection door structure |
| CN202809890U (en) * | 2012-08-23 | 2013-03-20 | 国基建设集团有限公司 | Insulating concrete exterior wall structure |
| CN204201882U (en) * | 2014-10-30 | 2015-03-11 | 南通万达锅炉有限公司 | Manhole inspection door device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |