CN202885642U - Boiler heat exchanger smoke pipe welding line wind erosion-preventing structure - Google Patents
Boiler heat exchanger smoke pipe welding line wind erosion-preventing structure Download PDFInfo
- Publication number
- CN202885642U CN202885642U CN 201220505406 CN201220505406U CN202885642U CN 202885642 U CN202885642 U CN 202885642U CN 201220505406 CN201220505406 CN 201220505406 CN 201220505406 U CN201220505406 U CN 201220505406U CN 202885642 U CN202885642 U CN 202885642U
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- Prior art keywords
- pipe
- smoke pipe
- welding line
- smoke
- boiler heat
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- 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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a boiler heat exchanger and particularly relates to a boiler heat exchanger smoke pipe welding line wind erosion-preventing structure which is disclosed to solve the wind erosion damage problem of a boiler heat exchanger smoke pipe welding line. In the boiler heat exchanger smoke pipe welding line wind erosion-preventing structure, a pipe material is inserted into a welding line between a smoke pipe and a pipe plate, and a pipe opening of the pipe material is provided with a flange used for covering the welding line between the pipe plate and the smoke pipe. For installation and replacement convenience, the used pipe material is a taper pipe, and the flange is formed by outward rolling the edge of the large-diameter pipe opening of the taper pipe. The taper pipe is inserted into the welding line between the smoke pipe and the pipe plate of the heat pipe exchanger, and therefore the smoke pipe welding line can be shielded, the smoke pipe welding line part can be prevented from being dashed and brushed by solid particles carried in smoke which flows at a high speed, and therefore the service life of the smoke pipe is prolonged. The taper pipe is advantaged by simplicity of manufacture, convenience of installation and replacement, and suitability for all heat pipe exchanger-equipped boiler systems.
Description
Technical field
The utility model relates to boiler heat-exchanger, specifically a kind of boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents.
Background technology
At present, in the production process of silica, the weld seam between Boiler smoke tube and tube sheet makes the smoke pipe weld seam damaged because the solid particle in the flue gas washes away for a long time, cause whole production line stop production to overhaul, affects normal operation.
Summary of the invention
The utility model is in order to solve boiler heat-exchanger smoke pipe weld seam wind erosion damaging problem, a kind of boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents to be provided.
The utility model is to adopt following technical scheme to realize: a kind of boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents, comprise smoke pipe and tube sheet, plug tubing in the weld seam between its smoke pipe and tube sheet, the mouth of pipe of used tubing is provided with for the flange that hides weld seam between tube sheet and smoke pipe.Change conveniently in order to install, used tubing is taper tube, and flange is outwards curling and form by the large mouth of pipe edge of taper tube diameter.
Heat exchanger smoke pipe of the present utility model is compared with prior art: the smoke pipe at heat exchange of heat pipe (is exhaust gases passes in the pipe, pipe is outer to be water) and tube sheet between weld seam in insert tubing, the mouth of pipe that its diameter is large is provided with for the flange that hides weld seam between tube sheet and smoke pipe, weld seam between smoke pipe and tube sheet is covered up, avoid the smoke pipe commissure to be subjected to that the entrained solid particle washes away in the swiftly flowing flue gas, thereby prolong the service life of smoke pipe.Used tubing is taper tube, and it is made simply, installs and change convenient and is applicable to the steam generator system that all have heat exchange of heat pipe.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is tubing schematic diagram in the utility model
Among the figure: the 1-smoke pipe; The 2-tube sheet; The 3-weld seam; 4-tubing; The 5-flange; The mouth of pipe that the 6-pipe diameter is large; The mouth of pipe that the 7-pipe diameter is little.
The specific embodiment
As shown in the figure, a kind of boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents plugs tubing 4 in the weld seam 3 of smoke pipe 1 and tube sheet 2, and the mouth of pipe of used tubing 4 is provided with for the flange 5 that hides tube sheet 2 and 1 weld seam 3 of smoke pipe.Used tubing 4 is taper tube, and flange 5 is outwards curling and form by the large mouth of pipe edge of taper tube diameter.
Smoke pipe is one section cylinder metal pipeline, and smoke pipe and tube sheet are by being weldingly connected; Insert taper tube in the weld seam of smoke pipe and tube sheet, the edge is outwards curling, and the smoke pipe weld seam is covered up, and the smoke pipe weld seam avoids being subjected to that the entrained solid particle washes away in the swiftly flowing flue gas when logical flue gas like this, thereby prolongs the service life of smoke pipe.
The production program of taper tube is, will being about the 7cm external diameter with tube expander, to be slightly less than the steel pipe one end external diameter of smoke pipe internal diameter swollen to identical with the smoke pipe internal diameter or bigger, and it can all be inserted in the smoke pipe in the situation that external force is knocked slightly; Hit this end mouth of pipe with iron hammer, make its edge outwards be curled into the shape of Fig. 2, after taper tube all inserted smoke pipe, curling edge just in time can cover weld seam between tube sheet and smoke pipe.
Claims (3)
1. one kind prevents boiler heat-exchanger smoke pipe weld seam wind erosion structure, comprise smoke pipe (1) and tube sheet (2), it is characterized in that: plug tubing (4) in the weld seam (3) of smoke pipe (1) and tube sheet (2), the mouth of pipe of used tubing (4) is provided with for the flange (5) that hides weld seam (3) between tube sheet (2) and smoke pipe (1).
2. the boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents according to claim 1, it is characterized in that: described tubing (4) is taper tube.
3. the boiler heat-exchanger smoke pipe weld seam wind erosion structure that prevents according to claim 1 and 2 is characterized in that: described flange (5) is outwards curling and form by the large mouth of pipe edge of taper tube diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505406 CN202885642U (en) | 2012-09-29 | 2012-09-29 | Boiler heat exchanger smoke pipe welding line wind erosion-preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505406 CN202885642U (en) | 2012-09-29 | 2012-09-29 | Boiler heat exchanger smoke pipe welding line wind erosion-preventing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202885642U true CN202885642U (en) | 2013-04-17 |
Family
ID=48077063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220505406 Expired - Fee Related CN202885642U (en) | 2012-09-29 | 2012-09-29 | Boiler heat exchanger smoke pipe welding line wind erosion-preventing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202885642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627627A (en) * | 2016-01-21 | 2016-06-01 | 徐明海 | Self-locking fixing device and method for PE pipe and steel bars of pile foundation buried pipe heat exchanger |
-
2012
- 2012-09-29 CN CN 201220505406 patent/CN202885642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627627A (en) * | 2016-01-21 | 2016-06-01 | 徐明海 | Self-locking fixing device and method for PE pipe and steel bars of pile foundation buried pipe heat exchanger |
| CN105627627B (en) * | 2016-01-21 | 2017-10-31 | 徐明海 | Self-locking fixer and method between a kind of pile foundation buried tube heat exchanger PE pipes and reinforcing bar |
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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: 20130417 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |