CN202581366U - Smoke pipe joint with thermal sleeve - Google Patents
Smoke pipe joint with thermal sleeve Download PDFInfo
- Publication number
- CN202581366U CN202581366U CN 201220139391 CN201220139391U CN202581366U CN 202581366 U CN202581366 U CN 202581366U CN 201220139391 CN201220139391 CN 201220139391 CN 201220139391 U CN201220139391 U CN 201220139391U CN 202581366 U CN202581366 U CN 202581366U
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- China
- Prior art keywords
- smoke pipe
- thermal sleeve
- pipe
- smoke
- tube sheet
- 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 belongs to the technical field of safety of thermal energy equipment, and especially relates to a smoke pipe joint with a thermal sleeve, comprising a smoke pipe and a pipe plate, wherein the smoke pipe and the pipe plate are connected with each other; the end of the smoke pipe is provided with the thermal sleeve; the external diameter of the thermal sleeve is the same with the internal diameter of the end of the smoke pipe; and the end of the thermal sleeve is turned at 90 degrees outward so as to be arc-shaped and further to stretch till being bonded with the pipe plate. With the adoption of the smoke pipe joint with the thermal sleeve, the high temperature smoke is prevented from directly scouring the end of the smoke pipe, so that the temperature of the end of the smoke pipe is decreased; and therefore, the problem about cracking caused by the overheating of the end of the smoke pipe is solved.
Description
Technical field
The utility model belongs to the safe practice field of thermal hardware, is the smoke pipe fitting of band thermal sleeve specifically.
Background technology
Boiler is a kind of heating equipment that a kind of heat energy that fuel combustion is produced is converted into steam and hot water supply user.Because the mal-condition work down that the pressure parts of boiler plant generally is in high temperature, high pressure, is corroded, is worn is so boiler also is a kind of special equipment with explosion danger.According to relevant technical standard and standard; The welding point of horizontal boiler high temperature side smoke pipe and tube sheet adopts welding point as shown in Figure 1 usually; In use still can often take place because of the overheated thermal crack(ing that produced of smoke pipe pipe end; Split tube sheet after the fracture propagation, thereby the situation that causes whole boiler must overhaul or scrap brings serious potential safety hazard for the safe handling of boiler.This also is the long-term open question that the boiler manufacturing exists.
The utility model content
To the problems referred to above, the utility model provides the smoke pipe fitting of band thermal sleeve, and purpose is to avoid high-temperature flue gas directly to wash away the smoke pipe pipe end, to reduce smoke pipe pipe end temperature, produces overheated problem of cracks thereby solve the smoke pipe pipe end.
The utility model is realized through following technical scheme: the smoke pipe fitting of band thermal sleeve; Comprise smoke pipe, tube sheet; Described smoke pipe and tube sheet interconnect, and described smoke pipe pipe end is provided with thermal sleeve, and the external diameter of described thermal sleeve is identical with the internal diameter of smoke pipe pipe end.
As preferably, it is curved that the pipe end of described thermal sleeve is outwards pulled 90 ° on limit, and extend to tube sheet and fit.
As preferably, the wall thickness of described thermal sleeve is 1 ~ 1.5mm.
As preferably, after described smoke pipe and the tube sheet welding, level.
As preferably, fillet is fallen in described smoke pipe pipe end inboard.
After the utility model had been taked above-mentioned corrective measure, it is remarkable that it optimizes effect: use thermal sleeve, in boiler operatiopn, avoid high-temperature flue gas directly to wash away the smoke pipe pipe end, to reduce smoke pipe pipe end temperature, prevent that it is overheated and produce the crack.After thermal sleeve was embedded in smoke pipe inside, the thermal sleeve pipe end was circular arc type in addition, thereby made and produce certain clearance between its inboard and smoke pipe pipe end.Good heat-blocking action is also played in this gap.
Description of drawings
Fig. 1 is the prior art constructions sketch map;
Fig. 2 is the structural representation of the utility model embodiment 1.
1 is smoke pipe among the figure, the 2nd, and tube sheet, the 3rd, thermal sleeve.
The specific embodiment
The contrast accompanying drawing combines embodiment that the utility model is further described below:
With reference to shown in Figure 2, the smoke pipe fitting of band thermal sleeve among the embodiment 1, the smoke pipe fitting of band thermal sleeve; Comprise smoke pipe, tube sheet, smoke pipe is welded to each other with tube sheet and is connected, and the pipe of smoke pipe protruded tube board plane and weld seam are all wipeed off to be removed; Thereby level, fillet is fallen in smoke pipe pipe end inboard, and the smoke pipe pipe end is provided with thermal sleeve; The external diameter of this thermal sleeve is identical with the internal diameter of smoke pipe pipe end, and it is curved that the pipe end of thermal sleeve is outwards pulled 90 ° on limit, and extends to tube sheet and fit.The wall thickness of thermal sleeve is 1 ~ 1.5mm.
During boiler operatiopn, contact with thermal sleeve earlier before the smoke pipe, avoid high-temperature flue gas directly to wash away the smoke pipe pipe end,, produce overheated problem of cracks thereby solved the smoke pipe pipe end to reduce smoke pipe pipe end temperature because flue gas is flowed through.
The specific embodiment of more than enumerating that is merely the utility model.Obviously, the utility model is not limited to above embodiment.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should belong to the protection domain of the utility model.
Claims (5)
1. the smoke pipe fitting with thermal sleeve comprises smoke pipe, tube sheet, and described smoke pipe and tube sheet interconnect, and it is characterized in that, described smoke pipe pipe end is provided with thermal sleeve, and the external diameter of described thermal sleeve is identical with the internal diameter of smoke pipe pipe end.
2. the smoke pipe fitting of band thermal sleeve according to claim 1 is characterized in that, it is curved that the pipe end of described thermal sleeve is outwards pulled 90 ° on limit, and extends to tube sheet and fit.
3. the smoke pipe fitting of band thermal sleeve according to claim 1 and 2 is characterized in that, the wall thickness of described thermal sleeve is 1 ~ 1.5mm.
4. the smoke pipe fitting of band thermal sleeve according to claim 1, after described smoke pipe and the tube sheet welding, level.
5. the smoke pipe fitting of band thermal sleeve according to claim 1 is characterized in that, fillet is fallen in described smoke pipe pipe end inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220139391 CN202581366U (en) | 2012-04-05 | 2012-04-05 | Smoke pipe joint with thermal sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220139391 CN202581366U (en) | 2012-04-05 | 2012-04-05 | Smoke pipe joint with thermal sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202581366U true CN202581366U (en) | 2012-12-05 |
Family
ID=47250772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220139391 Expired - Fee Related CN202581366U (en) | 2012-04-05 | 2012-04-05 | Smoke pipe joint with thermal sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202581366U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091018A (en) * | 2015-08-31 | 2015-11-25 | 中冶建筑研究总院有限公司 | High temperature resistant and efficient air heat exchanger |
| CN105890429A (en) * | 2015-02-17 | 2016-08-24 | 瓦尔斯坦工程有限公司 | Connecting mechanism for pipe and pipe bottom of heat exchanger, and method for manufacturing connecting mechanism |
| CN107388271A (en) * | 2017-09-13 | 2017-11-24 | 苏州戴斯维森金属制品有限公司 | Band gate-type chimney straight tube |
-
2012
- 2012-04-05 CN CN 201220139391 patent/CN202581366U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890429A (en) * | 2015-02-17 | 2016-08-24 | 瓦尔斯坦工程有限公司 | Connecting mechanism for pipe and pipe bottom of heat exchanger, and method for manufacturing connecting mechanism |
| CN105890429B (en) * | 2015-02-17 | 2018-03-30 | 瓦尔斯坦工程有限公司 | Bindiny mechanism between the pipe and ttom of pipe of heat exchanger and the method for making the bindiny mechanism |
| CN105091018A (en) * | 2015-08-31 | 2015-11-25 | 中冶建筑研究总院有限公司 | High temperature resistant and efficient air heat exchanger |
| CN107388271A (en) * | 2017-09-13 | 2017-11-24 | 苏州戴斯维森金属制品有限公司 | Band gate-type chimney straight tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20210405 |