CN202271107U - Pipe joint preheating device - Google Patents
Pipe joint preheating device Download PDFInfo
- Publication number
- CN202271107U CN202271107U CN2011201708531U CN201120170853U CN202271107U CN 202271107 U CN202271107 U CN 202271107U CN 2011201708531 U CN2011201708531 U CN 2011201708531U CN 201120170853 U CN201120170853 U CN 201120170853U CN 202271107 U CN202271107 U CN 202271107U
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- pipe
- preheating
- preheating device
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Abstract
The utility model discloses a pipe joint preheating device, belonging to the field of a preheating device. The pipe joint preheating device comprises a preheating pipe (1), wherein one end of the preheating pipe (1) is sealed, and the other end of the preheating pipe (1) is provided with a gas inlet pipe (3); and the pipe wall of the preheating pipe (1) is provided with a plurality of holes (6). The pipe joint preheating device disclosed by the utility model is simple in structure and simple and convenient in operation; a calandria joint can be welded by multiple people; and the pipe joint preheating device is beneficial to sufficient burning of fuel gas, improvement of flame temperature and shortening of heating time, and has higher efficacy.
Description
Technical field
The utility model relates to a kind of preceding preheating device of pipe joint welding that is used for.
Background technology
The existing preheating device that is used in before the boiler header tubular construction welding, the one: transmission cover that the belt heating lacks flexibility and power consumption is big; The 2nd,, common flame heat scope is little and preheating is inhomogeneous, and effect is undesirable; The 3rd, the monoblock type heating furnace, cost increases.Said structure all can not reach requirement.
Application number is 201020281098.X, and the applying date is on August 14th, 2010, and name is called: the Chinese utility model patent of the preheating device before the boiler header pipe joint welding; A kind of preheating device that is used for boiler header pipe joint is disclosed; This device can carry out preheating neatly, but this device can only adapt to and single a small amount of pore carried out warm-up operation, can not many people in a row carry out warm-up operation simultaneously; Its operation is very inconvenient, influences efficient.
The utility model content
The goal of the invention of the utility model is: to the problem of above-mentioned existence; Provide a kind of simple in structure; Easy and simple to handle, and can more than enough people be welded into the preheating device of comb joint, this preheating device can two or more welders weld simultaneously; Shorten the time of preheating, improved the efficient of welding.
The technical scheme that the utility model adopts is following:
The pipe joint preheating device of the utility model comprises preheating pipe, said preheating pipe one end sealing, and an other end is provided with admission line, and the tube wall of preheating pipe is provided with a plurality of holes.
Owing to adopted said structure, can pass through admission line transport gas mist in preheating pipe, this mist is exported from the hole on the tube wall of preheating pipe; And light at place, this hole; This preheating pipe is extend in the collection case, can heat the collecting box pipe hole in 4 meters scopes simultaneously along collection case length direction, two or more welders can weld simultaneously; Shorten the time of preheating, improved the efficient of welding.
The pipe joint preheating device of the utility model, said hole are blossom type and distribute, and are distributed on the tube wall of preheating pipe.
Distribute owing to adopted said structure, the hole on tube wall to be blossom type, and be distributed on the tube wall; Make that the flame on the preheating pipe is even, and the preheating scope is big, helps the abundant burning of combustion gas gas; Improve the temperature of flame, reduce heat time heating time, effect is also higher.
The pipe joint preheating device of the utility model; End near admission line of said preheating pipe is connected with the gas mixing pipe road; Be connected with circular unfilled corner steel plate on the end away from preheating pipe in said gas mixing pipe road; Said admission line is arranged on the circular unfilled corner steel plate, and the other end of said preheating pipe is through circular steel plate sealing.
Because having adopted said structure, air inlet pipe is the natural gas access point, the gas mixing pipe road has formed combustion gas and Air mixing chamber (air distribution); Make combustion gas with after air fully mixes; The final entering in the preheating pipe discharged from the hole and formed preheat flame, makes pre-heat effect better.
The pipe joint preheating device of the utility model, said circular unfilled corner steel plate forms breach on the end face in gas mixing pipe road.
Owing to adopted said structure, admission line infeeds combustion gas, and indentation, there is air-supplied, makes combustion gas and air in the gas mixing pipe road, fully mix, and helps follow-up pre-heat effect.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1. the pipe joint preheating device of the utility model is simple in structure, easy and simple to handle, and can more than enough people be welded into the comb joint;
2. the pipe joint preheating device of the utility model helps the abundant burning of combustion gas, improves the temperature of flame, reduces heat time heating time, and effect is also higher.
Description of drawings
Fig. 1 is the structural representation of the pipe joint preheating device of the utility model;
Fig. 2 is the right view among Fig. 1.
Mark among the figure: 1-preheating pipe, 2-gas mixing pipe road, 3-admission line, the circular unfilled corner steel plate of 4-, the circular steel plate of 5-, 6-hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As depicted in figs. 1 and 2, the pipe joint preheating device of the utility model comprises preheating pipe 1; Said preheating pipe 1 one ends are through circular steel plate 5 sealings; Be connected with gas mixing pipe road 2 on the other end, be welded with circular unfilled corner steel plate 4 on the end face in said gas mixing pipe road 2, make that the end face in gas mixing pipe road 2 forms breach; Circular unfilled corner steel plate 4 is provided with admission line 3; Preheating pipe) tube wall is provided with a plurality of holes 6, and said hole 6 is blossom type and distributes, and is distributed on the tube wall of preheating pipe 1.
Weld simultaneously for many people; Can use the pipe joint preheating device of the utility model before the weldering; Wherein heating tube has 39 hot spots, and gas mixing pipe road 2 is combined into combustion gas with circular unfilled corner steel plate 4 and Air mixing chamber (air distribution) admission line 3 is the natural gas access point.The pipe joint preheating device of the utility model can heat the collecting box pipe hole in 4 meters scopes simultaneously along collection case length direction, and two or more welders can weld simultaneously, have shortened the time of preheating, have improved the efficient of welding.Preheating pipe 1 heating tube glory hole on one's body adopts blossom type to distribute, and helps the abundant burning of natural gas, improves the temperature of flame, reduces heat time heating time, and effect is also higher.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. pipe joint preheating device, it is characterized in that: it comprises preheating pipe (1), said preheating pipe (1) one end sealing, an other end is provided with admission line (3), and the tube wall of preheating pipe (1) is provided with a plurality of holes (6).
2. pipe joint preheating device as claimed in claim 1; It is characterized in that: the end near admission line (3) of said preheating pipe (1) is connected with gas mixing pipe road (2); Be connected with circular unfilled corner steel plate (4) on the end away from preheating pipe (1) in said gas mixing pipe road (2); Said admission line (3) is arranged on the circular unfilled corner steel plate (4), and the other end of said preheating pipe (1) is through circular steel plate (5) sealing.
3. pipe joint preheating device as claimed in claim 2 is characterized in that: said circular unfilled corner steel plate (4) forms breach on the end face of gas mixing pipe road (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201708531U CN202271107U (en) | 2011-05-26 | 2011-05-26 | Pipe joint preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201708531U CN202271107U (en) | 2011-05-26 | 2011-05-26 | Pipe joint preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202271107U true CN202271107U (en) | 2012-06-13 |
Family
ID=46191493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201708531U Expired - Lifetime CN202271107U (en) | 2011-05-26 | 2011-05-26 | Pipe joint preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202271107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907539A (en) * | 2018-09-21 | 2018-11-30 | 中国五冶集团有限公司 | Preheating device and pre-heating mean when elongated big Member Welding |
-
2011
- 2011-05-26 CN CN2011201708531U patent/CN202271107U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907539A (en) * | 2018-09-21 | 2018-11-30 | 中国五冶集团有限公司 | Preheating device and pre-heating mean when elongated big Member Welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |