CN216541496U - Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline - Google Patents

Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline Download PDF

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CN216541496U
CN216541496U CN202122504195.1U CN202122504195U CN216541496U CN 216541496 U CN216541496 U CN 216541496U CN 202122504195 U CN202122504195 U CN 202122504195U CN 216541496 U CN216541496 U CN 216541496U
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fixed iron
resistant steel
martensite heat
protection device
temperature
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吕琛
郑德卓
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CNNC Fujian Nuclear Power Co Ltd
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CNNC Fujian Nuclear Power Co Ltd
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Abstract

An anti-toppling type welding argon filling protection device for a martensite heat-resistant steel pipeline comprises a high-temperature-resistant rubber plate, wherein two sides of the high-temperature-resistant rubber plate are connected with a fixed iron disc, a connecting rod is welded at the circle center of the fixed iron disc and is perpendicular to the fixed iron disc, and the two connecting rods are connected through a connecting sleeve; an argon gas chamber is formed between the high-temperature resistant rubber plates at the two ends and the martensite heat-resistant steel pipeline; an argon gas charging conduit is arranged under the high-temperature rubber plate, the argon gas charging conduit penetrates through the high-temperature-resistant rubber plate and the fixed iron disc to form an air inlet, and the air conveying pipeline is communicated with the argon gas chamber through the air inlet.

Description

Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline
Technical Field
The invention particularly relates to the technical field of welding, and particularly relates to an anti-toppling type welding argon filling protection device for a martensite heat-resistant steel pipeline.
Background
In the process of welding the martensite heat-resistant steel pipeline, in order to avoid the oxidation of the back of a welding seam and the reduction of welding quality, the air in the pipeline needs to be replaced by inert gas argon. At present, the welding of the martensite heat-resistant steel pipeline mainly uses rubber plates for plugging and establishing the argon gas chamber, namely two rubber plates with the same inner diameter as the pipeline are vertically placed on two sides of a welding opening in the pipeline respectively to establish the argon gas chamber. Because still need adjust the pipeline position after the argon gas room is established, the pipeline welding time is longer, and the rubber slab who is used as argon gas room shutoff board can be because the pipeline rocks or self unstability and topples over, causes the argon gas room to become invalid. Therefore, an anti-falling type welding argon filling protection device for martensite heat-resistant steel pipelines is needed to solve the existing problems.
Disclosure of Invention
The invention aims to: the anti-toppling type welding argon filling protection device for the martensite heat-resistant steel pipeline comprises a high-temperature-resistant rubber plate, a fixed iron disc, a bolt, a connecting rod, a connecting sleeve and an inflation guide pipe; the two sides of the high-temperature resistant rubber plates are fixed by two fixed iron plates respectively, a connecting rod with threads is welded on the fixed iron plates, and the two high-temperature resistant rubber plates with the fixed iron plates are arranged on the two sides of a welding seam respectively to form an argon gas chamber. Two threaded connecting rods are connected by a connecting sleeve. After the argon chamber is established, the argon chamber cannot topple due to shaking or self instability of the pipeline, and the effectiveness of the established argon chamber is ensured. The device structure is very simple, and the part is few, and construction convenient to carry, assembly and disassembly is convenient, and reuse rate is high, satisfies the construction needs.
The technical scheme of the invention is as follows: an anti-toppling type welding argon filling protection device for a martensite heat-resistant steel pipeline comprises a high-temperature-resistant rubber plate, wherein two sides of the high-temperature-resistant rubber plate are connected with a fixed iron disc, a connecting rod is welded at the circle center of the fixed iron disc and is perpendicular to the fixed iron disc, and the two connecting rods are connected through a connecting sleeve; an argon gas chamber is formed between the high-temperature resistant rubber plates at the two ends and the martensite heat-resistant steel pipeline; an argon gas charging conduit is arranged under the high-temperature rubber plate, the argon gas charging conduit penetrates through the high-temperature-resistant rubber plate and the fixed iron disc to form an air inlet, and the air conveying pipeline is communicated with the argon gas chamber through the air inlet.
The high-temperature resistant rubber plate is a fluororubber plate.
The two sides of the high-temperature resistant rubber plate are connected with the fixed iron plate by bolts
The fixed iron plate is made of Q235 materials.
And the fixed iron disc is matched with the high-temperature-resistant rubber plates with different diameters according to the martensite heat-resistant steel pipelines with different diameters.
The air charging conduit is made of carbon steel.
The air-filling conduit is made of stainless steel.
And a traction chain is welded at the circle center of the fixed iron disc.
One end of the connecting rod is provided with screw threads.
The invention has the following remarkable effects: compared with the prior art, the argon chamber plugging plate can be prevented from toppling and losing efficacy due to shaking or self instability of the pipeline.
Simple manufacture, low cost, convenient use and capability of meeting the construction requirement.
Drawings
FIG. 1 is a schematic view of an anti-toppling type martensitic heat-resistant steel pipeline welding argon filling protection device according to the invention;
FIG. 2 is the AA view of FIG. 1;
in the figure: 1, a high-temperature resistant rubber plate; 2 fixing the iron plate; 3, bolts; 4 connecting rods; 5 connecting the sleeve; 6, an argon gas chamber; 7 an argon inflation conduit; 8, an air inlet; 9, a traction chain; 10 martensite heat-resistant steel pipeline; 11 gas transmission pipeline.
Detailed Description
Referring to fig. 1 and 2, the anti-toppling type welding argon filling protection device for the martensite heat-resistant steel pipeline comprises a high-temperature-resistant rubber plate 1, wherein the high-temperature-resistant rubber plate 1 can be a fluororubber plate. The two sides of the high-temperature-resistant rubber plate 1 are connected with the fixed iron disc 2 through bolts 3, the fixed iron disc 2 can be made of Q235 materials, and the high-temperature-resistant rubber plate 1 and the fixed iron disc 2 with different diameters can be selected to be matched according to the martensite heat-resistant steel pipelines 10 with different diameters. The welding of the centre of a circle department of fixed iron disc 2 has connecting rod 4, and connecting rod 4 is perpendicular with fixed iron disc 2, and the one end of connecting rod 4 has the screw thread, connects through connecting sleeve 5 between two connecting rods 4. An argon air chamber 6 is formed between the high-temperature resistant rubber plates 1 at the two ends and the martensite heat-resistant steel pipeline 10. An argon gas charging conduit 7 is arranged under the high-temperature rubber plate 1, the charging conduit 7 can be made of carbon steel or stainless steel, the argon gas charging conduit 7 penetrates through the high-temperature-resistant rubber plate 1 and the fixed iron disc 2 to form an air inlet 8, and the air conveying pipeline 11 is communicated with the argon gas chamber 6 through the air inlet 8. The circle center of the fixed iron disc 2 is welded with a traction chain 9.
The specific working steps are as follows:
1. when in use, the high-temperature rubber plate 1 and the fixed iron disc 2 are connected by the bolt 3.
2. The gas transmission pipe 11 is connected with the argon gas charging conduit 7.
3. 2 high-temperature rubber plates 1 are respectively plugged into two ends of a welded junction of a martensite heat-resistant steel pipeline 10, the martensite heat-resistant steel pipeline 10 is a straight pipe, and a connecting rod 4 faces the welded junction.
4. The position of the high temperature resistant rubber plate 1 is adjusted to ensure that the argon gas inflation conduit 7 is positioned right below.
5. And adjusting the depth of the high-temperature-resistant rubber plate 1 in the martensite heat-resistant steel pipeline 10 to enable the end of the connecting rod 4 to be flush with the position of the welding opening of the martensite heat-resistant steel pipeline 10.
6. After the weld craters of the martensite heat-resistant steel pipeline 10 are preliminarily assembled and the positions of the weld craters at the two ends are approximately flush, the two connecting rods 4 are connected by the connecting sleeve 5.
7. And the formal group is used for welding the craters of the martensite heat-resistant steel pipeline 10 and fixing the craters by spot welding. At this time, an argon gas chamber 6 is formed between the high temperature resistant rubber plate 1 and the martensite heat resistant steel pipe 10 at the two ends.
8. And opening an argon bottle switch, introducing argon into the argon chamber 6 through the gas transmission pipeline 11, and replacing the air in the argon chamber with the argon.
9. After the argon replacement is finished, welding is started, and after the welding is carried out to the thickness of 5mm of the welding seam, argon filling can be stopped or the flow of argon can be reduced.
10. After the welding is finished, the whole device is slowly pulled out of the martensite heat-resistant steel pipeline 10 through the traction chain 9, and the whole device is used.

Claims (9)

1. The utility model provides an anti-toppling formula martensite heat-resistant steel pipeline welding argon filling protection device which characterized in that: the rubber plate comprises a high-temperature-resistant rubber plate (1), wherein two sides of the high-temperature-resistant rubber plate (1) are connected with a fixed iron disc (2), a connecting rod (4) is welded at the circle center of the fixed iron disc (2), the connecting rod (4) is perpendicular to the fixed iron disc (2), and the two connecting rods (4) are connected through a connecting sleeve (5); an argon gas chamber (6) is formed between the high-temperature resistant rubber plates (1) at the two ends and the martensite heat-resistant steel pipeline (10); an argon gas charging conduit (7) is arranged right below the high-temperature rubber plate (1), the argon gas charging conduit (7) penetrates through the high-temperature resistant rubber plate (1) and the fixed iron disc (2) to form an air inlet (8), and the air conveying pipeline (11) is communicated with the argon gas chamber (6) through the air inlet (8).
2. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: the high-temperature resistant rubber plate (1) is a fluororubber plate.
3. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: the two sides of the high-temperature resistant rubber plate (1) are connected with the fixed iron disc (2) by bolts (3).
4. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: the fixed iron disc (2) is made of Q235 material.
5. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 4, wherein: the fixed iron disc (2) is matched with the high-temperature resistant rubber plate (1) and the fixed iron disc (2) with different diameters according to the martensite heat-resistant steel pipelines (10) with different diameters.
6. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: the air charging conduit (7) is made of carbon steel.
7. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: the air inflation conduit (7) is made of stainless steel.
8. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: a traction chain (9) is welded at the circle center of the fixed iron disc (2).
9. The anti-toppling type welding argon-filling protection device for the martensite heat-resistant steel pipeline as claimed in claim 1, wherein: one end of the connecting rod (4) is provided with a thread.
CN202122504195.1U 2021-10-18 2021-10-18 Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline Active CN216541496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122504195.1U CN216541496U (en) 2021-10-18 2021-10-18 Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122504195.1U CN216541496U (en) 2021-10-18 2021-10-18 Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline

Publications (1)

Publication Number Publication Date
CN216541496U true CN216541496U (en) 2022-05-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122504195.1U Active CN216541496U (en) 2021-10-18 2021-10-18 Anti-toppling type welding argon filling protection device for martensite heat-resistant steel pipeline

Country Status (1)

Country Link
CN (1) CN216541496U (en)

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