CN215862186U - Economic and reliable large-diameter flange - Google Patents
Economic and reliable large-diameter flange Download PDFInfo
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- CN215862186U CN215862186U CN202120561477.2U CN202120561477U CN215862186U CN 215862186 U CN215862186 U CN 215862186U CN 202120561477 U CN202120561477 U CN 202120561477U CN 215862186 U CN215862186 U CN 215862186U
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Abstract
The utility model belongs to the field of chemical equipment, and particularly relates to an economical and reliable large-diameter flange. The utility model provides an economic reliable major diameter flange, includes flange body, double-screw bolt, nut and sealed the pad, and the flange body increases inside fastener, and inside fastener includes the support, has the bolt hole on the support, and support and flange body welding. According to the utility model, the other group of bolts is additionally arranged on the inner side of the flange body, so that the stress of the flange can be greatly improved, the flange cannot leak due to overlarge rotation angle when the flange is subjected to internal pressure, and the requirement on the rigidity of the flange plate is reduced. After another group of bolts is added, the sectional area of the bolts on the flange body can be reduced by more than half, so that the outer diameter of the flange plate can be reduced.
Description
Technical Field
The utility model belongs to the field of chemical equipment, and particularly relates to an economical and reliable large-diameter flange.
Background
With the increasing size of chemical equipment, high-parameter and large-diameter containers are applied more and more. Some containers with internals need to be provided with equipment flanges, the conventional equipment flanges in the standard cannot meet the requirements, the equipment flanges designed according to the conventional method are very heavy, and the sealing effect is not ideal.
Disclosure of Invention
According to the utility model, the stress condition of the flange is improved by adjusting the flange structure, so that the large-diameter flange has a more compact structure, is more economical and has a better sealing effect.
The utility model is realized by adopting the following technical scheme: the utility model provides an economic reliable major diameter flange, includes flange body, double-screw bolt, nut and sealed the pad, and the flange body increases inside fastener, and inside fastener includes the support, has the bolt hole on the support, and support and flange body welding.
When the flange is used, the upper flange body and the lower flange body are respectively welded with the shell, the upper flange body and the lower flange body are connected through the studs and the nuts, and the supports in the upper flange body and the lower flange body are connected through the studs and the nuts. And after the internal parts are installed, sealing welding is carried out on the sealing gasket between the upper flange body and the lower flange body, and the gasket is welded and detected, and then the stud between the upper flange body and the lower flange body and the stud between the inner supports of the upper flange body and the lower flange body are fastened.
The sealing performance of the conventional flange depends on the pretightening force of the bolts on the flange plate and the rigidity of the flange, on the premise of not crushing the sealing gasket, the larger the pretightening force of the bolts is, the better the sealing effect is, the sectional area of the bolts is in direct proportion to the pretightening force of the bolts, when the material is fixed, the enough pretightening force of the bolts is obtained by generally increasing the number of the bolts and the diameters of the bolts, and the diameters of the flange plate are increased after the diameters and the numbers of the bolts are increased. In addition, when the strength of the flange is calculated, a balance force system is formed among the flange, the bolts and the gasket, the other group of bolts are additionally arranged on the inner side of the flange body, the stress of the flange can be greatly improved, the flange cannot leak due to overlarge rotation angle when the flange is subjected to internal pressure, and the requirement on the rigidity of the flange plate is reduced. After another group of bolts is added, the sectional area of the bolts on the flange body can be reduced by more than half, so that the outer diameter of the flange plate can be reduced.
The economic and reliable large-diameter flange is characterized in that the support is welded with the flange body.
Foretell reliable major diameter flange of economy, sealed pad adopts the welding lip structure when carrying out seal weld, can reduce sealed demand to the bolt pretightning force, improves simultaneously and seals the reliability.
The utility model has the beneficial effects that: through increasing inside fastener, very big improvement the atress of flange, the reducible more than half of flange body bolt cross-sectional area has reduced the external diameter and the thickness of flange greatly, has increased the economic nature of major diameter flange, and in addition, the flange adopts the welding lip to seal, can improve the sealed reliability of flange.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the method comprises the following steps of 1-shell, 2-flange body, 3-stud, 4-nut, 5-support and 6-sealing gasket.
Detailed Description
As shown in the attached drawings, the economic and reliable large-diameter flange is composed of a flange body 2, studs 3, nuts 4, a support 5 and a sealing gasket 6.
The flange body 2 is respectively welded with the shell 1, the inner sides of the upper flange body and the lower flange body are respectively welded with the support 5, bolt holes are formed in the supports, after the internal parts are installed, the sealing gasket 6 is subjected to sealing welding, and the gasket is welded and detected to fasten the stud 3 on the flange body 2 and the support 5.
Claims (3)
1. The utility model provides an economic and reliable's major diameter flange, includes flange body (2), double-screw bolt (3), nut (4) and sealed pad (6), its characterized in that: the flange body (2) is additionally provided with an internal fastening device which comprises a support (5), and the support (5) is provided with a bolt hole.
2. An economical and reliable large-diameter flange according to claim 1, characterized in that: the support (5) is welded with the flange body (2).
3. An economical and reliable large-diameter flange according to claim 1 or 2, characterized in that: and the sealing gasket adopts a welding lip structure during sealing welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120561477.2U CN215862186U (en) | 2021-03-19 | 2021-03-19 | Economic and reliable large-diameter flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120561477.2U CN215862186U (en) | 2021-03-19 | 2021-03-19 | Economic and reliable large-diameter flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215862186U true CN215862186U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120561477.2U Active CN215862186U (en) | 2021-03-19 | 2021-03-19 | Economic and reliable large-diameter flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215862186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923147A (en) * | 2021-03-19 | 2021-06-08 | 山西阳煤化工机械（集团）有限公司 | Economic and reliable large-diameter flange |
-
2021
- 2021-03-19 CN CN202120561477.2U patent/CN215862186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923147A (en) * | 2021-03-19 | 2021-06-08 | 山西阳煤化工机械（集团）有限公司 | Economic and reliable large-diameter flange |
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