CN203177190U - Sealing structure for flue damper door of boiler - Google Patents
Sealing structure for flue damper door of boiler Download PDFInfo
- Publication number
- CN203177190U CN203177190U CN 201320175466 CN201320175466U CN203177190U CN 203177190 U CN203177190 U CN 203177190U CN 201320175466 CN201320175466 CN 201320175466 CN 201320175466 U CN201320175466 U CN 201320175466U CN 203177190 U CN203177190 U CN 203177190U
- Authority
- CN
- China
- Prior art keywords
- limiting plate
- door leaf
- venetian blind
- type door
- blind type
- 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 sealing structure for a flue damper door of a boiler, which relates to the technical field of boiler sealing, and is mainly used for solving the problems of unreliable sealing of the flue damper door and air leakage of a system. The sealing structure comprises a shutter type door leaf, a limiting plate, a hollow rubber tube, a slotted steel tube, sealing plates and a door frame, wherein the shutter type door leaf is hinged to the door frame, and the two ends of the shutter type door leaf are matched with the limiting plate; the two ends of the shutter type door leaf are fixedly connected with the L-shaped sealing plates; the limiting plate is arranged at a position where the inner side of the door frame is matched with one of the L-shaped sealing plates; the slotted steel tube is arranged at an included angle formed by connecting the limiting plate and the door frame; the hollow rubber tube is filled into the slotted steel tube; and the hollow rubber tube is flexibly matched with the sealing plates. According to the sealing structure, the L-shaped sealing plates are matched with the hollow rubber tube, so that flexible tight matching is realized, the flue damper door is sealed reliably, and the problem of air leakage of the flue damper door is solved effectively.
Description
Technical field
The utility model relates to the boiler seal technical field, and is specifically a kind of for the structure that the boiler flue baffle door is sealed.
Background technology
Two ends at modern boiler flue desulfurization dust-removal system, all be equipped with can open and close the multiple damper door, its purposes is when desulfurization dust-removal system needs cleaning, maintenance, the venetian blind type door leaf of cutting out baffle door has high temperature with blocking-up and has corrosive flue gas and enters system, therefore baffle door should have reliable sealing, so that isolated fully flue gas.
The sealing of common baffle door is the sealing surface that contacts formation by shutter door leaf edge with the limiting plate on being welded on doorframe.Because doorframe, the venetian blind type door leaf of baffle door are weldment, still there is the slit that can ventilate in the contact-making surface that they form, under system's pressure differential, still there are some flue gases to enter internal system from the slit, do not reach reliable sealing effectiveness at all.
The utility model content
The purpose of this utility model is to provide a kind of boiler flue baffle door hermetically-sealed construction, is used for solving the problem that the damper door sealing is unreliable, system leaks gas.
The technical scheme in the invention for solving the technical problem is: a kind of boiler flue baffle door hermetically-sealed construction, comprise the venetian blind type door leaf, limiting plate and doorframe, described venetian blind type door leaf middle part is hinged on the doorframe, and two ends cooperate with the limiting plate that is fixed on the doorframe inboard, have and open and closed two states, it is characterized in that, be provided with hermetically-sealed construction at described venetian blind type door leaf and limiting plate cooperation place, and described hermetically-sealed construction comprises hollow sebific duct and sealing plate, described hollow sebific duct is arranged on described limiting plate or the venetian blind type door leaf by connector, accordingly, described sealing plate is arranged on described venetian blind type door leaf or the limiting plate, in the closing seam process, sealing plate is oppressed hollow sebific duct distortion, form flexible matching trim in the cooperation place of venetian blind type door leaf and limiting plate, can effectively improve sealing effectiveness.
Further, described connector is the fluting steel pipe, described hollow sebific duct places in the fluting steel pipe, make the fluting steel pipe be coated on the hollow sebific duct outside, form a supplemental support, described fluting steel pipe is fixed on described limiting plate or the venetian blind type door leaf, and the insertion of the elongated slot of described fluting steel pipe permission sealing plate, and the hollow sebific duct in this structure can be changed.
Further, institute of institute sealing plate is one to be welded on the angle iron component on described venetian blind type door leaf or the limiting plate.
Further, described limiting plate is L type structure, and under the closure state, the outer end of described limiting plate can form with sealing plate and cooperate, and the restriction sealing plate is oppressed hollow sebific duct deformation extent.
The beneficial effects of the utility model are: by cooperating of L type sealing plate and sebific duct, realized rigidity and flexible closely cooperating, made the damper door have reliable sealing, efficiently solved the problem of damper valve blow-by.
Description of drawings
Fig. 1 is door leaf closing structure figure of the present utility model;
Fig. 2 is door leaf opening structure figure of the present utility model;
Among the figure: 1 venetian blind type door leaf, 2 limiting plates, 3 hollow sebific ducts, 4 fluting steel pipes, 5 sealing plates, 6 doorframes.
The specific embodiment
Extremely shown in Figure 2 as Fig. 1, the utility model, it comprises venetian blind type door leaf 1, limiting plate 2, hollow sebific duct 3, fluting steel pipe 4, sealing plate 5, doorframe 6, described venetian blind type door leaf 1 middle part is hinged on the doorframe 6 by axle, the feasible rotation that can control the venetian blind type door leaf by operation.The two ends of door leaf 1 are fixedly connected with the sealing plate 5 that heteropleural is arranged, sealing plate cooperates with the two ends of venetian blind type door leaf 1.L type limiting plate 2 one ends are fixedly connected on doorframe 6 inboards, and limiting plate 2 other ends are resisted against on the sealing plate 5, are used for the scope of activities of restriction sealing plate 5, and it is controlled to make that sealing plate is oppressed the degree of hollow sebific duct distortion, prevents from hollow sebific duct is crushed.Be service life and the bearing capacity that improves hollow sebific duct, hollow sebific duct is embedded in the fluting steel pipe that fluting steel pipe 4 is fixed on the limiting plate 2 in the mode of pre-welding, in the closing seam process, sealing plate is oppressed hollow sebific duct distortion.Hollow sebific duct 3 can form rigidity and flexible cooperating with an end of sealing plate 5, forms reliable hermetically-sealed construction.
Expect that easily as another kind of variant, the position of fluting steel pipe and sealing plate is exchanged, that is: the steel pipe of will slotting is fixed on the two ends of venetian blind type door leaf, and sealing plate is welded on the limiting plate 2, can play reasonable sealing effectiveness equally.
Claims (4)
1. boiler flue baffle door hermetically-sealed construction, comprise the venetian blind type door leaf, limiting plate and doorframe, described venetian blind type door leaf middle part is hinged on the doorframe, and two ends cooperate with the limiting plate that is fixed on the doorframe inboard, have and open and closed two states, it is characterized in that, be provided with hermetically-sealed construction at described venetian blind type door leaf and limiting plate cooperation place, and described hermetically-sealed construction comprises hollow sebific duct and sealing plate, described hollow sebific duct is arranged on described limiting plate or the venetian blind type door leaf by connector, and accordingly, described sealing plate is arranged on described venetian blind type door leaf or the limiting plate, in the closing seam process, sealing plate is oppressed hollow sebific duct distortion.
2. a kind of boiler flue baffle door hermetically-sealed construction according to claim 1, it is characterized in that, described connector is the fluting steel pipe, described hollow sebific duct places in the fluting steel pipe, described fluting steel pipe is fixed on described limiting plate or the venetian blind type door leaf, and the elongated slot of described fluting steel pipe allows sealing plate to insert.
3. a kind of boiler flue baffle door hermetically-sealed construction according to claim 2 is characterized in that, institute of institute sealing plate is one to be welded on the angle iron component on described venetian blind type door leaf or the limiting plate.
4. a kind of boiler flue baffle door hermetically-sealed construction according to claim 1 is characterized in that described limiting plate is L type structure, and under the closure state, the outer end of described limiting plate can form with sealing plate and cooperate, and the restriction sealing plate is oppressed hollow sebific duct deformation extent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175466 CN203177190U (en) | 2013-04-09 | 2013-04-09 | Sealing structure for flue damper door of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175466 CN203177190U (en) | 2013-04-09 | 2013-04-09 | Sealing structure for flue damper door of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177190U true CN203177190U (en) | 2013-09-04 |
Family
ID=49073879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175466 Expired - Fee Related CN203177190U (en) | 2013-04-09 | 2013-04-09 | Sealing structure for flue damper door of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091698A (en) * | 2016-06-23 | 2016-11-09 | 南通普瑞特机械有限公司 | A kind of calcining kiln flue door |
-
2013
- 2013-04-09 CN CN 201320175466 patent/CN203177190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091698A (en) * | 2016-06-23 | 2016-11-09 | 南通普瑞特机械有限公司 | A kind of calcining kiln flue door |
| CN106091698B (en) * | 2016-06-23 | 2018-03-30 | 南通普瑞特机械有限公司 | A kind of calcining kiln flue door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20180409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |