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Double-sided variable speed flange

A variable-speed flange and double-sided technology, which is applied to flange connections, pipes/pipe joints/fittings, passing components, etc., can solve the problems that are difficult to solve on-site connection problems, and there are no double-sided variable-speed flanges used and reported. , to achieve the effect of simple structure and convenient installation

Inactive Publication Date: 2011-05-11
吕增和
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This connection method can only be used in an environment with ample space. In an environment with a small space, it is often difficult to solve the connection problem on site; at the same time, in the prior art, the flange only has a through hole in the center of the flange, and the pipeline is welded. Finally, to ensure the material circulation, the flange only plays a connecting role, and there are few variable speed flanges, let alone the use and reports of double-sided variable speed flanges.

Method used

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Examples

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Effect test

Embodiment 1

[0016] Embodiment one: according to figure 1 It can be seen that the double-sided speed-changing flange of the present invention includes a flange body 1, a through hole 2 at the center of the flange body, and a bolt hole 3 at the edge of the flange body, and one end surface of the flange body 1 is annular. The concave-convex sealing surface 4, the other end surface is an annular groove sealing surface 5, the longitudinal section shape of the annular groove sealing surface is trapezoidal, and the center position of the flange body 1 corresponding to the annular concave-convex sealing surface 4 is set There is a transition hole 6 , the longitudinal section of the transition hole 6 is trapezoidal, and the minimum inner diameter of the transition hole 6 is larger than the inner diameter of the through hole 2 .

Embodiment 2

[0017] Embodiment two: according to figure 2 It can be seen that the double-sided speed-changing flange of the present invention includes a flange body 1, a through hole 2 at the center of the flange body, and a bolt hole 3 at the edge of the flange body, and one end surface of the flange body 1 is annular. The concave-convex sealing surface 4, the other end surface is an annular groove sealing surface 5, the longitudinal section shape of the annular groove sealing surface is trapezoidal, and the center position of the flange body 1 corresponding to the annular concave-convex sealing surface 4 is set There is a transition hole 6 , the longitudinal section of the transition hole 6 is bowl-shaped, and the minimum inner diameter of the transition hole 6 is larger than the inner diameter of the through hole 2 .

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Abstract

The invention discloses a double-sided variable speed flange, which comprises a flange body, a through hole at the central position of the flange body, and a through bolt hole at the edge position of the flange body, wherein one end face of the flange body is an annular concave-convex sealing face, and the other end face of the flange body is an annular groove sealing face; the central position of the flange body corresponding to the annular concave-convex sealing face is provided with transition holes; and the minimum inside diameter of the transition holes is greater than that of the through hole. The double-sided variable speed flange has simple structure, is convenient to install, and enables a medium to change speed.

Description

Technical field: [0001] The invention relates to the field of pipeline connectors, in particular to a double-sided variable speed flange. Background technique: [0002] At present, when connecting pipelines, gate valves or equipment with the same flange sealing form, the flanges can be directly connected by cross-through bolts. When connecting pipelines, gate valves or equipment with different flange sealing forms, the usual practice It is to add a short pipe in between, weld the flanges with different sealing forms at both ends of the short pipe, and connect the two through the through bolts. This connection method can only be used in an environment with ample space. In an environment with a small space, it is often difficult to solve the connection problem on site; at the same time, in the prior art, the flange only has a through hole in the center of the flange, and the pipeline is welded. Finally, to ensure the flow of materials, the flange only plays the role of connec...

Claims

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Application Information

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IPC IPC(8): F16L23/032F16L23/16
Inventor 吕增和
Owner 吕增和
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