CN202470867U - Free telescopic structure of single pipe of high-temperature air preheater - Google Patents
Free telescopic structure of single pipe of high-temperature air preheater Download PDFInfo
- Publication number
- CN202470867U CN202470867U CN2012200221462U CN201220022146U CN202470867U CN 202470867 U CN202470867 U CN 202470867U CN 2012200221462 U CN2012200221462 U CN 2012200221462U CN 201220022146 U CN201220022146 U CN 201220022146U CN 202470867 U CN202470867 U CN 202470867U
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- CN
- China
- Prior art keywords
- filling
- pipe
- filler
- top block
- jacking block
- 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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- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a free telescopic structure of a single pipe of a high-temperature air preheater and relates to the technical field of a connection mode between a heating pipe and a pipe plate in the high-temperature air preheater. The free telescopic structure comprises the pipe plate and the heat exchange pipe, wherein the heat exchange pipe is vertically connected onto the pipe plate, a sealing system is arranged between the heat exchange pipe and the pipe plate and comprises a filling top block, a filling box and fillings, the filling top block and the filling box are respectively sheathed and arranged outside the heat exchange pipe, the filling top block is welded on the pipe plate, the filling box is connected onto the filling top block through screw threads, the fillings are filled between the filling top block and the filling box, at least one installing groove is arranged on the surface of the filling top block in contact with the heat exchange pipe, at least one installing groove is arranged on the surface of the filling box in contact with the heat exchange pipe, and sealing rings are respectively arranged in each installing groove of the filling top block and the filling boxes. Through the arrangement, phenomena of incomplete sealing or clamping caused by the connecting structure of a pipe element and the pipe plate are avoided, and meanwhile, the problem that the sealing ring and the filling box cannot be easily replaced is solved.
Description
Technical field
The utility model relates in a kind of high-temperature air preheater, the technical field of the connected mode between heating tube and the tube sheet.
Background technology
At present, the high-temperature air preheater of institute's publicity, its heating tube structure relative and that tube sheet freely stretches all adopts single packing seal or adopts single filler to add the structure of sealing ring; Because the equipment operating temperature is high, tube sheet and stuffing box are easy to generate irregular expansion, cause sealing not exclusively or be stuck; Sealing ring though adding the structure of sealing ring, single filler can make moderate progress, owing to can not be changed inconvenient maintenance; And screw thread easy damage, stuffing box also are difficult for changing.
Summary of the invention
The utility model provides a kind of high-temperature air preheater single tube free stretching structure, and purpose is to solve the structure that existing pipe fitting is connected with tube sheet and is prone to cause sealing not exclusively or stuck phenomenon, solves the not easily changeable defective of sealing ring and stuffing box simultaneously.
The utility model comprises tube sheet, heat exchanger tube; Said heat exchanger tube is vertically connected on the said tube sheet; Between said heat exchanger tube and tube sheet, sealing system is set, said sealing system comprises filler jacking block, stuffing box, filler, and said filler jacking block, stuffing box are nested with respectively outside said heat exchanger tube; Said filler jacking block is welded on the said tube sheet; Said stuffing box is threaded on the said filler jacking block, and said filler is filled between said filler jacking block and the stuffing box, at said filler jacking block mounting groove at least is set on the surface of heat exchanger tube contact; At said stuffing box mounting groove at least is set on the surface of heat exchanger tube contact, in each mounting groove on said filler jacking block, stuffing box sealing ring is set respectively.
All be provided with sealing system on every pipe hole on the utility model tube sheet; On the contact-making surface of the contact-making surface of filler jacking block and heat exchanger tube and stuffing box and heat exchanger tube, all have the multiple tracks mounting groove now; And in each mounting groove, be respectively equipped with sealing ring, this set has been realized secondary seal; At high temperature simultaneously, airtight and watertight padding damages through regular meeting, after filler damages; Screw off stuffing box, change filler and get final product, change the sealing ring on the stuffing box simultaneously; Reinstall and get final product; As stuck phenomenon or seal structure damage appear, and remove the angle welding of filler jacking block and tube sheet, can take off hermetically-sealed construction and adjust and change.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Among the figure, 1, tube sheet, 2, heat exchanger tube, 3, sealing system, 4, the filler jacking block, 5, stuffing box, 6, filler, 7, mounting groove, 8, sealing ring.
The specific embodiment
As shown in Figure 1, the free stretching structure of this high-temperature air preheater single tube comprises tube sheet 1, heat exchanger tube 2; Heat exchanger tube 2 is vertically connected on the tube sheet 1; Between heat exchanger tube 2 and tube sheet 1, sealing system 3 is set, sealing system 3 comprises filler jacking block 4, stuffing box 5, filler 6, and filler jacking block 4, stuffing box 5 are nested with respectively outside heat exchanger tube 2; Filler jacking block 4 is welded on the tube sheet 1; Stuffing box 5 is threaded on the filler jacking block 4, and filler 6 is filled between filler jacking block 4 and the stuffing box 5, at filler jacking block 4 mounting groove 7 at least is set on the surface of heat exchanger tube 2 contacts; At stuffing box 5 mounting groove 7 at least is set on the surface of heat exchanger tube 2 contacts, in each mounting groove 7 on filler jacking block 4, stuffing box 5 sealing ring 8 is set respectively.
Claims (1)
1. the free stretching structure of high-temperature air preheater single tube; Comprise tube sheet, heat exchanger tube, said heat exchanger tube is vertically connected on the said tube sheet, between said heat exchanger tube and tube sheet, sealing system is set; It is characterized in that said sealing system comprises filler jacking block, stuffing box, filler; Said filler jacking block, stuffing box are nested with respectively outside said heat exchanger tube, and said filler jacking block is welded on the said tube sheet, and said stuffing box is threaded on the said filler jacking block; Said filler is filled between said filler jacking block and the stuffing box; At said filler jacking block mounting groove at least is set on the surface of heat exchanger tube contact, mounting groove at least is set on the surface of heat exchanger tube contact, in each mounting groove on said filler jacking block, stuffing box sealing ring is set respectively at said stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200221462U CN202470867U (en) | 2012-01-18 | 2012-01-18 | Free telescopic structure of single pipe of high-temperature air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200221462U CN202470867U (en) | 2012-01-18 | 2012-01-18 | Free telescopic structure of single pipe of high-temperature air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202470867U true CN202470867U (en) | 2012-10-03 |
Family
ID=46919021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200221462U Expired - Fee Related CN202470867U (en) | 2012-01-18 | 2012-01-18 | Free telescopic structure of single pipe of high-temperature air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202470867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
-
2012
- 2012-01-18 CN CN2012200221462U patent/CN202470867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
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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: 20121003 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |