CN211332021U - Pipeline welding auxiliary device - Google Patents
Pipeline welding auxiliary device Download PDFInfo
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- CN211332021U CN211332021U CN201920912279.9U CN201920912279U CN211332021U CN 211332021 U CN211332021 U CN 211332021U CN 201920912279 U CN201920912279 U CN 201920912279U CN 211332021 U CN211332021 U CN 211332021U
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Abstract
The application discloses a pipeline welding auxiliary device, which comprises a positioning clamping sleeve and at least one clamping hoop, wherein the positioning clamping sleeve is of a splicing structure and is used for sleeving a pipeline to be welded; the clamp is used for locking the positioning clamp sleeve; the positioning clamping sleeve is provided with at least one welding window. During the use, will treat two pipeline butt joints of welded, fix two pipelines through the positioning cutting ferrule earlier, lock by the clamp again, then through welding window spot welding fixed position, take off the complete welding again after auxiliary device. The device can repair the missing point from the outer side of the top of the hearth conveniently, has high safety and low cost, and can align the inner wall easily without affecting steam delivery.
Description
Technical Field
The utility model relates to a pipeline repair technical field, concretely relates to pipeline welding auxiliary device.
Background
The coal-fired release heat in the furnace of thermal power factory, the furnace outside sets up a lot of pipelines, and the heat of furnace fuel burning release converts the water heating in the pipeline into vapor, and pipeline internal pressure is great, and after the defect leak source appears in the pipeline, vapor leaks, must restore the defect leak source pipeline. (in this case, the left side and the right side of the defect leakage point are cut off, the pipeline at the section of the defect leakage point is taken down, and a section of pipeline which is consistent with the original pipeline in specification and material is replaced), however, the replacement pipeline welding is circumferential, the welding at the hearth side cannot be carried out from the outside of the hearth, the height of the hearth ceiling is more than 50 meters, and the width and the depth are more than 20 meters. The existing welding repair method is that a suspension cage is erected in a hearth, and a maintenance worker ascends to the top of the inner side of the hearth in the suspension cage to perform repair welding. In addition, the cost of setting up the cage is higher, and weld the restoration to the defect leak source from the furnace top outside, and the pipeline is thinner, is difficult to accomplish the inner wall and aligns when welding the pipeline of changing, and the pipeline that does not align of inner wall will lead to steam gas stream to produce the resistance when using, makes the welding seam produce additional stress at the operation in-process, and long-term operation can lead to the welding seam fracture to become new defect leak source, also influences steam transport simultaneously.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a pipe welding assistance apparatus.
In order to overcome the deficiency of the prior art, the utility model provides a technical scheme is:
the utility model provides a pipeline welding auxiliary device, which is characterized in that the device comprises a positioning clamping sleeve and at least one clamping hoop, wherein the positioning clamping sleeve is of a splicing structure and is used for sleeving a pipeline to be welded; the clamp is used for locking the positioning clamp sleeve; the positioning clamping sleeve is provided with at least one welding window.
Further, the quantity of clamp is two, two the clamp is located respectively the position that the welding window was not established to the location cutting ferrule.
Furthermore, the positioning cutting sleeve comprises a first structural part and a second structural part, the inner walls of the first structural part and the second structural part are arc-shaped surfaces, the first structural part is in butt joint with the second structural part to form a columnar surrounding space for arranging the pipeline, and at least one welding window is arranged on each of the first structural part and the second structural part.
Furthermore, a plurality of welding windows are respectively arranged on the first structural member and the second structural member, and the plurality of welding windows are uniformly distributed on the first structural member and the second structural member along the circumferential direction.
Further, the clamp comprises a clamp body and a fastening device, wherein two ends of the clamp body are connected together through the fastening device.
Further, the clamp body includes first body and second body, fastener includes the bolt, the one end of first body with the one end of second body is articulated, the other end pass through the bolt with the other end of second body is connected.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a pipeline welding auxiliary device, which comprises a positioning clamping sleeve and at least one clamping hoop, wherein the positioning clamping sleeve is of a splicing structure and is used for sleeving a pipeline to be welded; the clamp is used for locking the positioning clamp sleeve; the positioning clamping sleeve is provided with at least one welding window. During the use, will treat two pipeline butt joints of welded, fix two pipelines through the positioning cutting ferrule earlier, lock by the clamp again, then through welding window spot welding fixed position, take off the complete welding again after auxiliary device. The device can repair the missing point from the outer side of the top of the hearth conveniently, has high safety and low cost, is easy to align, and cannot influence steam conveying.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a three-dimensional structure diagram of a locking state of a pipeline welding auxiliary device provided by the embodiment of the utility model;
fig. 2 is a three-dimensional structure diagram of the locking state of the auxiliary device for pipeline welding provided by the embodiment of the utility model;
fig. 3 is a three-dimensional structure diagram of the positioning card sleeve provided by the embodiment of the utility model;
fig. 4 is a schematic diagram of an application scenario of the pipeline welding assisting device provided by the embodiment of the present invention.
In the figure: 1-positioning ferrule, 2-clip, 3-welding window, 4-pipe, 11-first structural member, 12-second structural member, 21-clip body, 22-fastening means, 211-first body, 212-second body.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As mentioned in the background art, the existing repair method is to set up a suspension cage in the furnace, and the maintenance personnel rise to the top of the inner side of the furnace in the suspension cage for repair. The method has potential safety hazards, maintenance personnel easily fall from the suspension cage, in addition, the suspension cage is high in erection cost, the missing point is repaired from the outer side of the top of the hearth, the pipeline is thin, the replaced pipeline is not easy to align when being welded, and the inner step of the unaligned pipeline causes steam airflow to generate resistance when being used, so that steam conveying is influenced.
Referring to fig. 1 to 4, the utility model provides a pipeline welding auxiliary device, which comprises a positioning cutting sleeve 1 and at least one clamping hoop 2, wherein the positioning cutting sleeve 1 is of a splicing structure and is used for sleeving a pipeline 4 to be welded; the clamp 2 is used for locking the positioning clamp sleeve 1; the positioning cutting sleeve 1 is provided with at least one welding window 3.
During the use, will treat two pipelines 4 butt joints of welded, it is fixed to two pipelines 4 through location cutting ferrule 1 earlier, lock by clamp 2 again, then through 3 spot welding fixed positions of welding window, take off the complete welding again after auxiliary device.
It should be noted that the positioning ferrule 1 has a hollow cylindrical shape, and the outer shape is not particularly limited. Preferably, the outer dimensions of the positioning sleeve 1 are kept uniform, and the inner diameter of the positioning sleeve 1 is changed to adapt to pipes 4 with different outer diameters. Further preferably, the external size of the positioning cutting sleeve 1 is unchanged, and the clamp 2 can be used as a standard component and is suitable for positioning cutting sleeves 1 with different external diameters; it is further preferred that the positioning sleeve 1 is also provided externally cylindrical.
As an implementation manner, the positioning ferrule 1 includes a first structural member 11 and a second structural member 12, inner walls of the first structural member 11 and the second structural member 12 are both arc-shaped surfaces, the first structural member 11 and the second structural member 12 are butted to form a cylindrical surrounding space for arranging the pipeline 4, and at least one welding window 3 is respectively disposed on the first structural member 11 and the second structural member 12.
It should be noted that the first structural member 11 and the second structural member 12 are semi-circular cylindrical plate-shaped structures, the inner wall is an arc-shaped surface, the outer wall is an arc-shaped surface, the inner diameter and the outer diameter of the two semi-cylindrical plate-shaped structures are equal, and the two semi-cylindrical plate-shaped structures are spliced to each other to form exactly one hollow cylindrical positioning cutting sleeve 1.
As an embodiment, a plurality of welding windows 3 are respectively disposed on the first structural member 11 and the second structural member 12, and the plurality of welding windows 3 are uniformly distributed on the first structural member 11 and the second structural member 12 along the circumferential direction.
It should be noted that the shape of the welding window 3 can be set to any shape, but the size is required to satisfy the welding operation. The preferred scheme is to set welding window 3 into a strip-shaped through groove, the length direction of the strip-shaped through groove is along the axial direction of positioning clamping sleeve 1, and welding window 3 is distributed in the middle of positioning clamping sleeve 1 along the axial direction.
As an implementation mode, the number of the clamping bands 2 is two, and the two clamping bands 2 are respectively arranged at the position where the welding window 3 is not arranged on the positioning clamping sleeve 1. Specifically, two the clamp 2 is located the both ends of location cutting ferrule 1.
As an embodiment, the clamp 2 includes a clamp body 21 and a fastening device 22, and both ends of the clamp body 21 are connected together by the fastening device 22. It should be noted that the clamp body 21 may be an integral body, and only two connecting ends are reserved for fastening; also can set up to split type, fasten four link respectively, perhaps articulated with wherein two links earlier, fasten two other links again. The fastening device 22 can be selected from various fastening modes, a threaded connection and a snap connection.
As an embodiment, the clamp body 21 includes a first body 211 and a second body 212, the fastening device 22 includes a bolt, one end of the first body 211 is hinged to one end of the second body 212, and the other end is connected to the other end of the second body 212 through the bolt.
It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (5)
1. The auxiliary device for pipeline welding is characterized by comprising a positioning clamping sleeve and at least one clamping hoop, wherein the positioning clamping sleeve is of a splicing structure and is used for sleeving a pipeline to be welded; the clamp is used for locking the positioning clamp sleeve; the positioning clamping sleeve is provided with at least one welding window; the positioning clamping sleeve comprises a first structural part and a second structural part, the inner walls of the first structural part and the second structural part are arc-shaped surfaces, the first structural part is in butt joint with the second structural part to form a columnar surrounding space for arranging the pipeline, and at least one welding window is arranged on each of the first structural part and the second structural part.
2. The auxiliary device for pipe welding according to claim 1, wherein the number of the clamping bands is two, and the two clamping bands are respectively arranged at the position where the welding window is not arranged on the positioning clamping sleeve.
3. The auxiliary device for welding pipes according to claim 1, wherein a plurality of welding windows are respectively formed on the first structural member and the second structural member, and the plurality of welding windows are uniformly distributed on the first structural member and the second structural member along a circumferential direction.
4. The pipe welding assist of claim 2, wherein the clamp includes a clamp body and a fastening device, the clamp body having two ends connected together by the fastening device.
5. The pipe welding assist device of claim 4, wherein the clip body includes a first body and a second body, the fastening device includes a bolt, one end of the first body is hinged to one end of the second body, and the other end is connected to the other end of the second body by the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920912279.9U CN211332021U (en) | 2019-06-18 | 2019-06-18 | Pipeline welding auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920912279.9U CN211332021U (en) | 2019-06-18 | 2019-06-18 | Pipeline welding auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211332021U true CN211332021U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920912279.9U Active CN211332021U (en) | 2019-06-18 | 2019-06-18 | Pipeline welding auxiliary device |
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| CN (1) | CN211332021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627308A (en) * | 2020-12-21 | 2021-04-09 | 中国建筑第八工程局有限公司 | Technical measure device for pipeline capable of being rapidly disassembled and construction method |
| CN113060162A (en) * | 2019-12-16 | 2021-07-02 | 中车唐山机车车辆有限公司 | Electric heat tracing guide tube for railway passenger car |
-
2019
- 2019-06-18 CN CN201920912279.9U patent/CN211332021U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060162A (en) * | 2019-12-16 | 2021-07-02 | 中车唐山机车车辆有限公司 | Electric heat tracing guide tube for railway passenger car |
| CN112627308A (en) * | 2020-12-21 | 2021-04-09 | 中国建筑第八工程局有限公司 | Technical measure device for pipeline capable of being rapidly disassembled and construction method |
| CN112627308B (en) * | 2020-12-21 | 2022-03-01 | 中国建筑第八工程局有限公司 | Technical measure device for pipeline capable of being rapidly disassembled and construction method |
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