CN201133770Y - Heating stove rectangular access door - Google Patents
Heating stove rectangular access door Download PDFInfo
- Publication number
- CN201133770Y CN201133770Y CNU2007201813705U CN200720181370U CN201133770Y CN 201133770 Y CN201133770 Y CN 201133770Y CN U2007201813705 U CNU2007201813705 U CN U2007201813705U CN 200720181370 U CN200720181370 U CN 200720181370U CN 201133770 Y CN201133770 Y CN 201133770Y
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- CN
- China
- Prior art keywords
- manhole door
- rectangle
- rectangle manhole
- manhole
- door
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rectangle manhole door used for a heating furnace which is designed for solving the problem of poor seal effect for a long period in the prior art. The utility model includes a rectangle manhole door frame and a rectangle manhole door cover; one side of the rectangle manhole door cover is hinged with the rectangle manhole door frame by a door shaft hinge device; the other side is provided with a locking device; the rectangle manhole door frame and the rectangle manhole door cover are casting structures; the liner protection board of the manhole door manufactured by a stainless steel plate is arranged in the manhole door cover; a heat isolating liner is arranged between the liner protection board of the manhole door and the manhole door cover; after adopting the structure, the rectangle manhole door frame and the rectangle manhole door cover adopt casting structures to replace the normal welding structures, thus avoiding the defects of being heated and deformed during the using process as well as wind and air leakage. The utility model improves the thermal efficiency of an industrial heating furnace and reaches the goals of saving energies and protecting the environments.
Description
Technical field
The utility model relates to a kind of manhole door, particularly a kind of heating furnace rectangle manhole door.
Background technology
In the prior art, industrial heating furnace wall manhole door adopts Welding Structure more, has welding deformation mostly, and poorly sealed, heat-insulating property is bad, opens shortcomings such as inconvenient, maintenance discrepancy inconvenience.Along with the development of industrial technology, require the industrial heating furnace energy-conserving and environment-protective, because manhole door is contained on the heating furnace furnace wall, be the device that the maintainer passes in and out heating furnace, its heat insulating ability and sealing directly influence the thermal efficiency of heating furnace.Therefore, be badly in need of on the market a kind of possess can long term seal heat insulation, the manhole door product that makes things convenient for personnel to pass in and out.
The utility model content
For overcoming above-mentioned defective, the purpose of this utility model is to overcome the above-mentioned deficiency of existing product technology, and a kind of heating furnace rectangle manhole door of sealing excellent thermal insulation performance is provided.
For achieving the above object, the utility model heating furnace rectangle manhole door comprises: rectangle manhole doorframe and rectangle manhole door closure; Side at described rectangle manhole door closure is hinged by door-hinge hinge means and rectangle manhole doorframe, and opposite side is provided with locking device; Described rectangle manhole doorframe and rectangle manhole door closure are cast structure, are provided with the manhole door lining backplate that corrosion resistant plate is made in the manhole door closure, are provided with insulating inner lining between described manhole door lining backplate and manhole door closure.
Further, be provided with refractory brick, between refractory brick and rectangle manhole doorframe outer surface, be provided with the lining backplate along rectangle manhole doorframe outer surface.。
Further, described door-hinge hinge means is the cam-type door-hinge.
After adopting said structure, rectangle manhole doorframe and rectangle manhole door closure adopt cast structure, have substituted conventional Welding Structure, avoid temperature distortion in use, the defective of the gas leakage of leaking out.Improve the thermal efficiency of industrial heating furnace, reached the purpose that realizes energy-conserving and environment-protective, adapted to the needs of modern petrochemical industrial development.
Description of drawings
Fig. 1 is the structural representation of the utility model rectangle manhole door.
Fig. 2 is that the A-A of the utility model rectangle manhole door shown in Figure 1 is to cross-sectional schematic.
Fig. 3 is that the B-B of the utility model rectangle manhole door shown in Figure 1 is to cross-sectional schematic.
The specific embodiment
Below in conjunction with drawings and Examples the utility model rectangle manhole door is elaborated.
As shown in Figure 1 to Figure 3, the utility model heating furnace rectangle manhole door comprises: rectangle manhole doorframe 1 and rectangle manhole door closure 2; Side at described rectangle manhole door closure 2 is hinged by door-hinge hinge means 3 and rectangle manhole doorframe 1, and opposite side is provided with locking device 4; Described rectangle manhole doorframe 1 and rectangle manhole door closure 2 are cast structure, to substitute conventional Welding Structure, avoid temperature distortion in use, and the defective of the gas leakage of leaking out, and the whole manufacturing of rectangle manhole door have been saved the work on the spot amount; In the manhole door closure, be provided with the manhole door lining backplate that corrosion resistant plate is made, between described manhole door lining backplate and manhole door closure, be provided with insulating inner lining 5, the manhole door heat-proof quality is improved greatly.
Improve further as of the present utility model, be provided with refractory brick 6, between refractory brick and rectangle manhole doorframe outer surface, be provided with lining backplate 61, can increase the heat-proof quality of manhole door further along rectangle manhole doorframe outer surface.
Improve further as of the present utility model, described door-hinge hinge means is the cam-type door-hinge.Like this, make rectangle manhole door switch flexible, the composition surface cooperates tight, can guarantee the sealing of rectangle manhole door further.
Claims (3)
1, a kind of heating furnace rectangle manhole door comprises: rectangle manhole doorframe and rectangle manhole door closure; Side at described rectangle manhole door closure is hinged by door-hinge hinge means and rectangle manhole doorframe, and opposite side is provided with locking device; It is characterized in that: described rectangle manhole doorframe and rectangle manhole door closure are cast structure, are provided with the manhole door lining backplate that corrosion resistant plate is made in the manhole door closure, are provided with insulating inner lining between described manhole door lining backplate and manhole door closure.
2, heating furnace as claimed in claim 1 rectangle manhole door is characterized in that: be provided with the refractory brick suitable with its shape along rectangle manhole doorframe outer surface, be provided with the lining backplate between refractory brick and rectangle manhole doorframe outer surface.
3, heating furnace as claimed in claim 1 or 2 rectangle manhole door is characterized in that: described door-hinge hinge means is the cam-type door-hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201813705U CN201133770Y (en) | 2007-10-25 | 2007-10-25 | Heating stove rectangular access door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201813705U CN201133770Y (en) | 2007-10-25 | 2007-10-25 | Heating stove rectangular access door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133770Y true CN201133770Y (en) | 2008-10-15 |
Family
ID=40062041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201813705U Expired - Fee Related CN201133770Y (en) | 2007-10-25 | 2007-10-25 | Heating stove rectangular access door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133770Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532664B (en) * | 2009-04-27 | 2011-02-16 | 无锡华光锅炉股份有限公司 | Improved high-temperature and high-pressure resistant manhole access door |
| CN102620566A (en) * | 2012-01-31 | 2012-08-01 | 苏州工业园区姑苏科技有限公司 | Multifunctional access door |
| CN102980406A (en) * | 2012-12-20 | 2013-03-20 | 江苏海建股份有限公司 | Quick-open adjustable air-tight door |
-
2007
- 2007-10-25 CN CNU2007201813705U patent/CN201133770Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532664B (en) * | 2009-04-27 | 2011-02-16 | 无锡华光锅炉股份有限公司 | Improved high-temperature and high-pressure resistant manhole access door |
| CN102620566A (en) * | 2012-01-31 | 2012-08-01 | 苏州工业园区姑苏科技有限公司 | Multifunctional access door |
| CN102980406A (en) * | 2012-12-20 | 2013-03-20 | 江苏海建股份有限公司 | Quick-open adjustable air-tight door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20111025 |