CN205043371U - Be used for intraductal plugging device of pipeline under pressure welded - Google Patents
Be used for intraductal plugging device of pipeline under pressure welded Download PDFInfo
- Publication number
- CN205043371U CN205043371U CN201520739856.0U CN201520739856U CN205043371U CN 205043371 U CN205043371 U CN 205043371U CN 201520739856 U CN201520739856 U CN 201520739856U CN 205043371 U CN205043371 U CN 205043371U
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- China
- Prior art keywords
- pressure pipeline
- occluding body
- circular
- plugging device
- welded
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Abstract
The utility model discloses a be used for intraductal plugging device of pipeline under pressure welded, include along two shutoff bodies of intraductal axial interval distribution, the two shutoff bodies respectively with pipe inner wall in close contact with, be connected with the connection chain between the two shutoff body, one of them shutoff body coupling has a gas ducting, it is the cyclic annular spring steel wire who distributes to be fixed with many on the two shutoff body respectively, spring steel wire and pipe inner wall contact. The utility model discloses can save argon gas or other inert gas's quantity, improve weld quality, have simple structure, seal characteristics reliable, high temperature resistant, convenient and practical. The utility model discloses be fit for being used for the anti -oxidation protection of pipeline under pressure penetration bead.
Description
Technical field
The utility model belongs to pressure pipeline solder technology field, relates to a kind of pipeline welding auxiliary implement, is specifically related to a kind of for plugging device in the pipe of pressure pipeline welding.
Background technology
When the pipeline welding of high-alloy steel material, for preventing root run metal from oxidation reaction occurring when high temperature, causing oxidation hair wastes, must protect at pipe interior applying argon gas to be welded or other inert gases.If be all full of argon gas or other inert gases in pipe interior cavity, not only gas usage is large, causes waste, increases construction cost, and due to duct length long, can not ensure that gas concentration is stable, affect weldquality.
Utility model content
For solving the above deficiency existed in prior art, the utility model aims to provide a kind of for plugging device in the pipe of pressure pipeline welding, argon gas or other inert gas consumptions can be reduced, improve weldquality, have structure simple, seal reliable, high temperature resistant, convenient and practical feature.
For achieving the above object, the technical scheme that adopts of the utility model is as follows:
For pressure pipeline welding pipe in a plugging device, comprise in pressure pipeline to be welded along two occluding body that inner axial tube is spaced apart, described two occluding body respectively with inner-walls of duct close contact, be connected with connection chain between two occluding body; Described two occluding body are fixed with respectively many ring-shaped distributed elastic wires, described elastic wire contacts with inner-walls of duct; Described in one of them, occluding body is connected with gas ducting.
As to restriction of the present utility model, described gas ducting comprise both ends be each passed through occluding body and be fixed on U-shaped gas tube in occluding body, be positioned at U-shaped gas tube middle part, bottom and the gas tube joint be communicated with U-shaped gas tube.
As further restriction, described gas ducting is welded with arm-tie, arm-tie is provided with for the fixing hole by pulling force, occluding body being pulled out the pull-out chain of pressure pipeline.
Limit as to another kind of the present utility model, the round iron plate that described occluding body comprises circular warming plate, is fixed on the circular asbestos board of circular warming plate both ends of the surface, is fixed on circular asbestos board outer face; Fix through bolt between described circular warming plate, circular asbestos board, round iron plate three.
Restriction as to aforesaid way:
The diameter 50-80mm larger than the internal diameter of pressure pipeline to be welded of described circular warming plate; The diameter of described circular asbestos board is the 3/4-4/5 of pressure pipeline internal diameter to be welded; The diameter of described round iron plate is the 1/3-1/2 of pressure pipeline internal diameter to be welded.
Described circular warming plate is circular alumina silicate warming plate.
The utility model also has a kind of restriction, and described connection chain is fire-resistant iron chains.
Owing to have employed technique scheme, compared with prior art, acquired technological progress is the utility model:
1. two occluding body of the present utility model can be filled in pressure pipeline to be welded easily, and fit tightly with pressure pipeline inwall to be welded, form the enclosure space that stores argon gas or other inert gases, from gas ducting insufflation gas, butt welded seam position is protected, can gas usage be reduced, improve weldquality; Steel wire of the present utility model and pressure pipeline contact internal walls, can prevent occluding body from toppling over;
2. U-shaped gas tube of the present utility model can ensure that inflation is smooth and easy, can make to be full of protective gas fast in pipeline;
3. occluding body of the present utility model is made up of warming plate, asbestos board, iron plate, high temperature resistant, and good airproof performance.
In sum, the utility model have structure simple, seal reliable, high temperature resistant, convenient and practical feature.
The utility model is suitable for pressure pipeline root pass protection against oxidation.
Accompanying drawing explanation
Below in conjunction with drawings and the specific embodiments, the utility model is further described in detail.
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1, occluding body; 11, circular warming plate; 12, circular asbestos board; 13, round iron plate; 14, bolt; 2, gas ducting; 21, U-shaped gas tube; 22, gas tube joint; 3, elastic wire; 4, chain is connected; 5, arm-tie.
Detailed description of the invention
embodiment 1
For a plugging device in the pipe of pressure pipeline welding, structure as shown in Figure 1, comprises two occluding body 1, connects chain 4, gas ducting 2.
Each occluding body 1 includes circular warming plate 11, circular asbestos board 12, round iron plate 13.Circular warming plate 11 adopts aluminum silicate insulation material to make, its diameter 50-80mm larger than the internal diameter of pressure pipeline to be welded, and circular warming plate 11 fits tightly with pressure pipeline inwall to be welded.Circular asbestos board 12 is fixed on the both ends of the surface of circular warming plate 11, and the diameter of circular asbestos board 12 is the 3/4-4/5 of pressure pipeline internal diameter to be welded.Round iron plate 13 is fixed on the outer face of circular asbestos board 12, and the diameter of round iron plate 13 is the 1/3-1/2 of pressure pipeline internal diameter to be welded.Fix through bolt 14 between circular warming plate 11, circular asbestos board 12, round iron plate 13 three.Two occluding body 1 fit tightly with pressure pipeline inwall to be welded, form one for storing the enclosure space of argon gas or other inert gases.
Two occluding body 1 are fixed with respectively many ring-shaped distributed elastic wires 3, elastic wire 3 contacts with inner-walls of duct.Elastic wire 3 is toppled over for preventing occluding body 1.
Connecting chain 4 is fire-resistant iron chains, for connecting two occluding body 1.
Gas ducting comprises U-shaped gas tube 21, gas tube joint 22.The two ends of U-shaped gas tube 21 are each passed through an occluding body 1 and are fixed in this occluding body 1.Gas tube joint 22 is positioned at the middle part, bottom of U-shaped gas tube 21 and is communicated with U-shaped gas tube 21.The middle part, bottom of gas ducting is also welded with arm-tie 5, and arm-tie 5 is provided with hole, and pull-out chain can be fixed in this hole, by applying pulling force to pull-out chain, this plugging device can be extracted pipeline.
The use procedure of the present embodiment is as follows:
In pipeline to be welded, fill in two occluding body 1, two occluding body 1 fit tightly with pressure pipeline inwall to be welded, form the enclosure space that stores argon gas or other inert gases.Insufflation gas in gas tube joint 22, gas enters enclosure space through U-shaped gas tube 21, protects root run when pipeline welding, avoids weld seam oxidized.In addition, when post weld heat treatment, will not take out by this plugging device, can thermal effectiveness be improved.Sweating heat is disposed, and by pulling the pull-out chain connected in advance, this plugging device is extracted pipeline.
Claims (7)
1. for pressure pipeline welding pipe in a plugging device, comprise in pressure pipeline to be welded along two occluding body that inner axial tube is spaced apart,
it is characterized in that:described two occluding body respectively with inner-walls of duct close contact, be connected with connection chain between two occluding body; Described two occluding body are fixed with respectively many ring-shaped distributed elastic wires, described elastic wire contacts with inner-walls of duct; Described in one of them, occluding body is connected with gas ducting.
2. according to claim 1 for plugging device in the pipe of pressure pipeline welding,
it is characterized in that:described gas ducting comprise both ends be each passed through occluding body and be fixed on U-shaped gas tube in occluding body, be positioned at U-shaped gas tube middle part, bottom and the gas tube joint be communicated with U-shaped gas tube.
3. according to claim 2 for plugging device in the pipe of pressure pipeline welding,
it is characterized in that:described gas ducting is welded with arm-tie, and arm-tie is provided with for the fixing hole by pulling force, occluding body being pulled out the pull-out chain of pressure pipeline.
4. according to claim 1 for plugging device in the pipe of pressure pipeline welding,
it is characterized in that:the round iron plate that described occluding body comprises circular warming plate, is fixed on the circular asbestos board of circular warming plate both ends of the surface, is fixed on circular asbestos board outer face; Fix through bolt between described circular warming plate, circular asbestos board, round iron plate three.
5. according to claim 4 for plugging device in the pipe of pressure pipeline welding,
it is characterized in that:the diameter 50-80mm larger than the internal diameter of pressure pipeline to be welded of described circular warming plate; The diameter of described circular asbestos board is the 3/4-4/5 of pressure pipeline internal diameter to be welded; The diameter of described round iron plate is the 1/3-1/2 of pressure pipeline internal diameter to be welded.
6. according to claim 4 or 5 for pressure pipeline welding pipe in plugging device,
it is characterized in that:described circular warming plate is circular alumina silicate warming plate.
7. according to claim 1 for plugging device in the pipe of pressure pipeline welding,
it is characterized in that:described connection chain is fire-resistant iron chains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739856.0U CN205043371U (en) | 2015-09-23 | 2015-09-23 | Be used for intraductal plugging device of pipeline under pressure welded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739856.0U CN205043371U (en) | 2015-09-23 | 2015-09-23 | Be used for intraductal plugging device of pipeline under pressure welded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205043371U true CN205043371U (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520739856.0U Expired - Fee Related CN205043371U (en) | 2015-09-23 | 2015-09-23 | Be used for intraductal plugging device of pipeline under pressure welded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205043371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434505A (en) * | 2019-08-13 | 2019-11-12 | 中国水利水电第三工程局有限公司 | A kind of penstock installation hydrophobic auxiliary device and its application method |
-
2015
- 2015-09-23 CN CN201520739856.0U patent/CN205043371U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434505A (en) * | 2019-08-13 | 2019-11-12 | 中国水利水电第三工程局有限公司 | A kind of penstock installation hydrophobic auxiliary device and its application method |
| CN110434505B (en) * | 2019-08-13 | 2024-02-20 | 中国水利水电第三工程局有限公司 | Drainage auxiliary device for steel pipe installation and use method thereof |
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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: 20160224 Termination date: 20180923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |