CN215004093U - Wrapping film special for leakage detection of flange plate of gas sealing pipeline - Google Patents
Wrapping film special for leakage detection of flange plate of gas sealing pipeline Download PDFInfo
- Publication number
- CN215004093U CN215004093U CN202120869136.1U CN202120869136U CN215004093U CN 215004093 U CN215004093 U CN 215004093U CN 202120869136 U CN202120869136 U CN 202120869136U CN 215004093 U CN215004093 U CN 215004093U
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- Prior art keywords
- film
- film body
- flange
- gas
- tenon
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- 238000001514 detection method Methods 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 title description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a be exclusively used in membrane of wrapping of gas seal pipeline flange leak hunting, including film body, fixed band, the fixed band constitute, wherein tenon portion and tongue-and-groove part are located the two sides of the same position of film body respectively by tenon portion, tongue-and-groove portion. The utility model arranges the fixing belt on the film body, the fixing belt is composed of the tenon part and the mortise part, and the regular binding of the flange can be rapidly completed by matching with the special supporting frame, and the operation is very convenient; the shape of the bound inner cavity is regular, so that the volume calculation is simple.
Description
Technical Field
The utility model belongs to flange leak hunting field relates to the film and wraps the technique, especially a wrap film of gas seal pipeline flange leak hunting is exclusively used in.
Background
The flange is an irreplaceable part in the gas sealing pipeline, the use number is large, and the application range is wide. About 80% of pipeline gas leakage accidents are due to flange seal defects. In order to reduce the gas leakage of the flange part of the sealed pipeline in engineering use, the annual leakage rate must be accurately calculated in the links of equipment manufacturing and installation, so that whether the sealing performance of the equipment meets the operation requirement or not is judged.
The local wrapping leak detection method is the most common flange leak detection method, wherein the most key difficulty is the calculation of the volume of a wrapping space. At present, the related standard specification of leak detection does not meet the specification requirement of a binding film, and a large amount of common plastic films are used in actual work, so that the complicated shape and the complicated volume of an internal cavity after binding are difficult to calculate, and the tightness of equipment cannot be accurately judged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art and adopt ordinary film to appear fold and the problem that the space sinks wrapping the back, provide a wrap film of being exclusively used in gas seal pipeline ring flange leak hunting, the operation is very convenient.
The utility model provides a technical scheme that technical problem adopted is:
the utility model provides a be exclusively used in wrapping film of leak hunting of gas seal pipeline ring flange, includes film body 2, fixed band, the fixed band constitute by tenon portion 1, tongue-and-groove portion 3, wherein tenon portion 1 and tongue-and-groove portion 3 are located the two sides of the same position of film body 2 respectively.
Moreover, the film body 2 comprises two isosceles trapezoid parts, the bottom edges of the two isosceles trapezoid parts are butted to form a long edge of the film body 2, and the top edges of the two isosceles trapezoid parts are respectively two short edges of the film body 2 and are located on two sides of the long edge and are in mirror symmetry.
And the distance between the two short sides is 15 cm-25 cm.
The thickness of the film body 2 is 0.5mm to 2 mm.
The difference in length between the short side and the long side is determined by the difference between the diameter of the flange and the diameter of the pipe body, and when the difference in diameter is x, the difference in length is π x.
Moreover, the fixed band is 3, sets up along the long limit of film body 2 and two minor faces respectively.
The tenon 1 and the mortise 3 of the fastening band are fixed to the film body 2 by adhesive.
The utility model has the advantages that:
the utility model arranges the fixing belt on the film body, the fixing belt is composed of the tenon part and the mortise part, and the regular binding of the flange can be rapidly completed by matching with the special supporting frame, and the operation is very convenient; the shape of the bound inner cavity is regular, so that the volume calculation is simple, the annual leakage rate can be accurately obtained through table lookup in actual work, and the equipment with unqualified sealing performance is prevented from being put into use.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a schematic view of the connection structure of the film body with the tenon portion and the mortise portion;
FIG. 4 is a diagram showing the binding state of the present film;
FIG. 5 is a view showing the connection between the film and the flange.
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
The utility model provides a be exclusively used in wrapping film of leak hunting of gas seal pipeline ring flange, includes film body 2, fixed band, the fixed band constitute by tenon portion 1, tongue-and-groove portion 3, wherein tenon portion 1 and tongue-and-groove portion 3 are located the two sides of the same position of film body 2 respectively.
The film body 2 comprise two isosceles trapezoid parts, the bottom edges of the two isosceles trapezoid parts are in butt joint to form a long edge of the film body 2, and the top edges of the two isosceles trapezoid parts are respectively two short edges of the film body 2 and are located on two sides of the long edge and are in mirror symmetry. The distance between the two short sides is 15 cm-25 cm, and the thickness of the film body 2 is 0.5mm
-2mm, the film body 2 being longitudinal along the long side, the length being generally greater than 2m, the difference in length between the short side and the long side being determined by the difference between the diameter of the flange and the diameter of the tube, the difference in length being pi x assuming a difference in diameter of x, the difference in length being generally about 25cm assuming a difference in diameter of about 8 cm.
The fixed band sets up to 3, for rectangular area shape, sets up along the long limit of film body 2 and two minor faces respectively, and tenon portion 1 and the tongue-and-groove portion 3 of fixed band are fixed through modes such as gluing with film body 2.
The use method of the film comprises the following steps:
the wrapping film is wound around the circumferential surface of the flange plate 4, and when the wrapping film is wound to a second circle, the mortise part 3 of the second circle of film and the tenon part 1 of the first circle of film form a mortise-tenon joint structure, so that the purposes of tightening and fixing the film are realized.
During detection, the special supports 5 are arranged on the circumference of the flange plate, 4-8 special supports 5 are arranged according to the diameter of the flange plate, the special supports 5 are fixed on the circumference surface at equal intervals, and the fixing belt in the middle of the film covers the top end of each support 5. The fixing bands on both sides surround the pipe bodies 7 on both sides of the flange plate, and the edges of the films are sealed by adhesive tapes. The film forms 3 cavities 6 through three supporting points of the top point of the bracket and the edges of two sides of the flange plate, and the cavities are respectively a screw head cavity, a screw tail cavity and an arc surface cavity. The three independent cavities are convenient for accurately positioning the leakage part.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (7)
1. The utility model provides a be exclusively used in wrapping film of leak hunting of gas seal pipeline ring flange which characterized in that: the film fixing device comprises a film body (2) and a fixing band, wherein the fixing band is composed of a tenon part (1) and a tenon groove part (3), and the tenon part (1) and the tenon groove part (3) are respectively positioned on two sides of the same position of the film body (2).
2. The wrapping film special for leak detection of a flange of a gas-sealed pipeline as claimed in claim 1, wherein: the film body (2) is composed of two isosceles trapezoid parts, the bottom edges of the two isosceles trapezoid parts are in butt joint to form a long edge of the film body (2), and the top edges of the two isosceles trapezoid parts are respectively two short edges of the film body (2) and are located on two sides of the long edge and are in mirror symmetry.
3. The wrapping film special for leak detection of a gas-sealed pipeline flange according to claim 2, wherein: the distance between the two short sides is 15 cm-25 cm.
4. The wrapping film special for leak detection of a flange of a gas-sealed pipeline as claimed in claim 1, wherein: the thickness of the film body (2) is 0.5mm-2 mm.
5. The wrapping film special for leak detection of a gas-sealed pipeline flange according to claim 2, wherein: the length difference between the short side and the long side is determined by the difference between the diameter of the flange and the diameter of the pipe body, and if the difference between the diameters is x, the length difference is pi x.
6. The wrapping film special for leak detection of a gas-sealed pipeline flange according to claim 2, wherein: the fixed band is 3, sets up along the long limit and two minor faces of film body (2) respectively.
7. The wrapping film special for leak detection of a flange of a gas-sealed pipeline as claimed in claim 1, wherein: the tenon part (1) and the tenon groove part (3) of the fixing band are fixed with the film body (2) through gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869136.1U CN215004093U (en) | 2021-04-26 | 2021-04-26 | Wrapping film special for leakage detection of flange plate of gas sealing pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869136.1U CN215004093U (en) | 2021-04-26 | 2021-04-26 | Wrapping film special for leakage detection of flange plate of gas sealing pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215004093U true CN215004093U (en) | 2021-12-03 |
Family
ID=79091933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120869136.1U Active CN215004093U (en) | 2021-04-26 | 2021-04-26 | Wrapping film special for leakage detection of flange plate of gas sealing pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215004093U (en) |
-
2021
- 2021-04-26 CN CN202120869136.1U patent/CN215004093U/en active Active
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