CN201354903Y - Dust leading pipe and dust guiding pipe connecting and sealing structure - Google Patents
Dust leading pipe and dust guiding pipe connecting and sealing structure Download PDFInfo
- Publication number
- CN201354903Y CN201354903Y CNU200820214540XU CN200820214540U CN201354903Y CN 201354903 Y CN201354903 Y CN 201354903Y CN U200820214540X U CNU200820214540X U CN U200820214540XU CN 200820214540 U CN200820214540 U CN 200820214540U CN 201354903 Y CN201354903 Y CN 201354903Y
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- CN
- China
- Prior art keywords
- pipe
- guiding pipe
- dust
- flange
- ash
- 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 relates to a structure of an accessory of coal-saving monitoring equipment of a boiler in a thermal power plant, in particular to a dust leading pipe and dust guiding pipe connecting and sealing structure for a fly ash monitoring system. The dust leading pipe and dust guiding pipe connecting and sealing structure comprises a dust guiding pipe and a dust leading pipe; the upper end of the dust leading pipe is directly inserted in the dust guiding pipe; a dust guiding pipe flange is fixed at the bottom of the dust guiding pipe; the inner ring at the bottom end surface of the dust guiding pipe flange is a conical concave cavity with a bigger upper part and a smaller lower part; a sealing flange is sleeved on the outer wall of the dust leading pipe; a silicone rubber pipe section is arranged between the sealing flange and the dust guiding pipe flange; the external diameter of the silicone rubber pipe section is equal to the large diameter of the conical concave cavity; and the sealing flange is tightly connected with the dust guiding pipe flange by bolts. Because the flanges and the silicone rubber pipe section are all in sealing connection by bolts, the dust leading pipe and dust guiding pipe connecting and sealing structure has attractive appearance and long service life for not being easy to be damaged during long-time reliable use.
Description
Technical field
The utility model relates to a kind of power plant boiler monitoring equipment accessory structure of economizing on coal, and particularly a kind of ash pipe that draws that is used for the flying dust monitoring system is connected sealing configuration with ash guiding pipe.
Background technique
The flying dust monitoring system is that thermal power plant is used for system that burned-coal fly ash is monitored, the flying dust monitoring system is sampled to the flying dust sample by the fly ash sampler that is arranged in the flue, through drawing ash pipe and ash guiding pipe flying dust is imported to the outer monitoring instrument of flue then.Existingly draw ash pipe be connected sealing configuration with ash guiding pipe generally be directly to insert in the ash guiding pipe drawing ash pipe one end, then with the wrapping of multilayer single-coated foam to reach the requirement of sealing.Such sealing at first outward appearance is not beautiful, and single-coated foam has reduced operational safety because of the sex change of wearing out of being heated when long-time running.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of long service life, the ash pipe that draws that sealing reliability is good to be connected sealing configuration with ash guiding pipe.
The ash pipe that draws of the present utility model is connected sealing configuration and comprises that ash guiding pipe and upper end directly insert the ash pipe that draws of ash guiding pipe inside with ash guiding pipe, described ash guiding pipe bottom is fixed with the ash guiding pipe flange, the conical cavity that the inner ring of ash guiding pipe flange lower end surface is up-small and down-big, be with a sealing flange on the ash pipe outer wall drawing, it is disconnected to be provided with a silicone rubber tube between sealing flange and ash guiding pipe flange, the external diameter that silicone rubber tube is disconnected is suitable with the big footpath of conical cavity, and sealing flange and ash guiding pipe flange closely link together with bolt.
The length that the depth ratio silicone rubber tube of described conical cavity breaks is smaller.
The ash pipe that draws of the present utility model is connected sealing configuration owing to adopt flange and silicone rubber tube is disconnected is connected with bolt seal with ash guiding pipe, not only aesthetic in appearance, and also is not easy damage, long service life, good reliability in long-term using process.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Embodiment
As shown in Figure 1, of the present utility model draw that ash pipe is connected with ash guiding pipe that sealing configuration comprises that ash guiding pipe 1 and upper end directly insert ash guiding pipe 1 inside draw ash pipe 2, ash guiding pipe 1 bottom is fixed with ash guiding pipe flange 3, ash guiding pipe flange 3 bottom surface inner rings have up-small and down-big conical cavity 4, be with sealing flange 5 on the ash pipe 2 drawing, be provided with silicone rubber tube disconnected 6 between grey pipe flange 5 and the ash guiding pipe flange 3 drawing, the external diameter of silicone rubber tube disconnected 6 is suitable with the big footpath of conical cavity 4, and the degree of depth of conical cavity 4 is slightly less than the length of silicone rubber tube disconnected 6, under the coupled condition, sealing flange 5 and ash guiding pipe flange 3 usefulness bolts 7 closely link together.
In use, when sealing flange 5 and ash guiding pipe flange 3 being tightened with bolt 7, silicone rubber tube disconnected 6 is owing to the axial compression that is subjected to sealing flange is squeezed in the conical cavity 4, because the effect of conical inner surface, the inner ring that makes silicone rubber tube disconnected 6 closely shroud ring is drawing on the ash pipe outer wall, the disconnected outer ring ash guiding pipe flange of silicone rubber tube is combined closely simultaneously, thereby reaches the purpose of sealing.
Claims (2)
- One kind draw ash pipe be connected with ash guiding pipe sealing configuration comprise ash guiding pipe (1) and upper end directly insert ash guiding pipe (1) inner draw ash pipe (2), it is characterized in that: described ash guiding pipe (1) bottom is fixed with ash guiding pipe flange (3), the conical cavity (4) that the inner ring of ash guiding pipe flange (3) lower end surface is up-small and down-big, be with a sealing flange (5) drawing on ash pipe (2) outer wall, between sealing flange (5) and ash guiding pipe flange (3), be provided with a silicone rubber tube disconnected (6), the external diameter of silicone rubber tube disconnected (6) is suitable with the big footpath of conical cavity (4), and sealing flange (5) closely links together with bolt (7) with ash guiding pipe flange (3).
- 2. the ash pipe that draws according to claim 1 is connected sealing configuration with ash guiding pipe, it is characterized in that: the length of the depth ratio silicone rubber tube of conical cavity (4) disconnected (6) is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820214540XU CN201354903Y (en) | 2008-12-23 | 2008-12-23 | Dust leading pipe and dust guiding pipe connecting and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820214540XU CN201354903Y (en) | 2008-12-23 | 2008-12-23 | Dust leading pipe and dust guiding pipe connecting and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354903Y true CN201354903Y (en) | 2009-12-02 |
Family
ID=41411244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820214540XU Expired - Fee Related CN201354903Y (en) | 2008-12-23 | 2008-12-23 | Dust leading pipe and dust guiding pipe connecting and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354903Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438306A (en) * | 2013-08-23 | 2013-12-11 | 中国航天科技集团公司第六研究院第十一研究所 | Sealing device of electric heat transfer test pipe fitting |
| CN104696635A (en) * | 2015-03-23 | 2015-06-10 | 浙江华立涂装设备有限公司 | Exhaust pipe structure |
| CN107605800A (en) * | 2017-10-23 | 2018-01-19 | 北京海月星科技有限公司 | Blower fan is flexible coupling and blower fan |
| CN108443610A (en) * | 2018-04-19 | 2018-08-24 | 张剑 | A kind of hydraulic engineering conduit coupling |
-
2008
- 2008-12-23 CN CNU200820214540XU patent/CN201354903Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438306A (en) * | 2013-08-23 | 2013-12-11 | 中国航天科技集团公司第六研究院第十一研究所 | Sealing device of electric heat transfer test pipe fitting |
| CN103438306B (en) * | 2013-08-23 | 2016-08-24 | 中国航天科技集团公司第六研究院第十一研究所 | A kind of sealing device of fax heat test pipe fitting |
| CN104696635A (en) * | 2015-03-23 | 2015-06-10 | 浙江华立涂装设备有限公司 | Exhaust pipe structure |
| CN107605800A (en) * | 2017-10-23 | 2018-01-19 | 北京海月星科技有限公司 | Blower fan is flexible coupling and blower fan |
| CN108443610A (en) * | 2018-04-19 | 2018-08-24 | 张剑 | A kind of hydraulic engineering conduit coupling |
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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: 20091202 Termination date: 20100125 |