CN213236471U

CN213236471U - Flange and engine

Info

Publication number: CN213236471U
Application number: CN202021951941.0U
Authority: CN
Inventors: 张凤丽; 郭军军; 衣瑞建; 李帅
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-05-18
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a flange, be provided with sealed line on the terminal surface of flange, sealed line centers on the flange hole setting of flange, sealed line can support and lean on the terminal surface of another flange, the flange with another flange interconnect. The utility model discloses a rely on the sealing line on the flange to lean on and to realize sealedly on another flange. Because the sealing line is annular, 360-degree sealing is realized, and the sealing performance is good. The requirement of the sealing line on the processing precision is low, and the processed sealing line can be ensured to abut against the end face of the other flange. Additionally, the utility model discloses a sealed can not take place to damage because of reasons such as high temperature to the fault rate has been reduced. The utility model discloses can reduce the machining precision of flange on guarantee flange sealing performance's basis, reduce the fault rate of flange simultaneously. The utility model also discloses an engine.

Description

Flange and engine

Technical Field

The utility model relates to a connection technical field of engine inner tube says, more specifically says, relates to a flange and an engine.

Background

Expansion joints have been of great interest as an important component of a connection in pipelines, both in production and in failure. In order to ensure the sealing effect, extremely high requirements are provided for the processing precision of the expansion joint flange, including perpendicularity, flatness, roughness and the like, which inevitably causes the reduction of production efficiency and the increase of processing cost. In addition, a sealing gasket is arranged between the expansion joint flange and the pipeline flange. The sealing gasket often damages because of reasons such as vibrations, high temperature, and then leads to the junction gas leakage to the fault rate of flange has been improved.

Therefore, how to reduce the machining precision of the expansion joint flange on the basis of ensuring the sealing performance of the expansion joint flange and reduce the failure rate of the expansion joint flange at the same time is a critical problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at reducing the machining precision of expansion joint flange on the basis of guaranteeing expansion joint flange sealing performance, reduce the fault rate of expansion joint flange simultaneously. In order to achieve the above purpose, the utility model provides a following technical scheme:

a flange is provided with a sealing line on the end face of the flange, the sealing line is arranged around a flange hole of the flange, the sealing line can abut against the end face of another flange, and the flange is connected with the other flange.

Preferably, two inclined planes are arranged on the end face of the flange, and the intersection of the two inclined planes forms the sealing line.

Preferably, the flange is integrally cast or machined.

Preferably, the flange and the other flange are mutually positioned by a positioning part.

Preferably, the positioning portion is an L-shaped spigot, the L-shaped spigot is annular, the L-shaped spigot is arranged on the inner wall of the flange hole of the flange, and the L-shaped spigot and the inner wall of the flange hole of the other flange are matched and positioned.

Preferably, the positioning portion is an L-shaped spigot, the L-shaped spigot is annular, the L-shaped spigot is arranged on the inner wall of the flange hole of the other flange, and the L-shaped spigot and the inner wall of the flange hole of the flange are matched for positioning.

Preferably, the flange and the other flange are clamped into a whole through a clamping hoop.

Preferably, the draw-in groove of clamp is V type draw-in groove, the back of flange is to the one side of another flange is the taper structure, another flange back of the body is to the one side of flange is the taper structure, two taper structures with V type draw-in groove adaptation.

Preferably, the flange is an expansion joint flange and the other flange is a pipe flange.

The utility model also provides an engine, including the expansion joint flange, the expansion joint flange is above-mentioned expansion joint flange.

According to the technical scheme, the utility model discloses a rely on the sealing line on the flange to lean on and lean on another flange and realize sealedly. Because the sealing line is annular, 360-degree sealing is realized, and the sealing performance is good. The requirement of the sealing line on the processing precision is low, and the processed sealing line can be ensured to abut against the end face of the other flange. Additionally, the utility model discloses a sealed can not take place to damage because of reasons such as high temperature to the fault rate has been reduced. The utility model discloses can reduce the machining precision of flange on guarantee flange sealing performance's basis, reduce the fault rate of flange simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a partial schematic view of a seal line according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a pipe flange and an expansion joint flange according to an embodiment of the present invention.

Wherein, 1 is the expansion joint flange, 2 is the pipeline flange, 3 is the sealing line, 4 is L type tang, 5 is V type clamp.

Detailed Description

The utility model discloses an expansion joint flange, this expansion joint flange can reduce the machining precision of expansion joint flange on the basis of guarantee expansion joint flange sealing performance, reduces the fault rate of expansion joint flange simultaneously. The utility model also discloses an engine.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses will "the flange" specifically be the expansion joint flange, will "another flange" specifically explains for the pipeline flange.

The utility model discloses set up sealed line 3 on expansion joint flange 1's terminal surface. The sealing line 3 is annular, and the sealing line 3 is arranged around the flange hole of the expansion joint flange 1. When the expansion joint flange 1 is connected with the pipeline flange 2, the sealing line 3 can abut against the end face of the pipeline flange 2, so that 360-degree sealing is realized.

The seal line 3 can be manufactured in the following way: two inclined planes are arranged on the end surface of the expansion joint flange 1, and the intersection part of the two inclined planes forms a sealing line 3. The expansion joint flange 1 with the structure can be integrally formed by casting or can be formed by machining.

Alternatively, a ring of projecting sealing lines 3 can also be provided directly on the round end face of the expansion flange. The manner of processing the seal line 3 is not particularly required, and the seal line 3 is protected as long as it can be ensured that the seal line abuts against the end face of the pipe flange 2.

In order to ensure that the expansion joint flange 1 and the pipeline flange 2 are convenient to install, a positioning part needs to be additionally arranged. The positioning part positions the expansion joint flange 1 and the pipeline flange 2 mutually.

The positioning part can be preferably an L-shaped spigot 4, the L-shaped spigot 4 is annular and is arranged around a flange hole of the expansion joint flange 1 or a flange hole of the pipeline flange 2. If the L-shaped spigot 4 is arranged on the inner wall of the flange hole of the expansion joint flange 1, the L-shaped spigot 4 is matched and positioned with the inner wall of the flange hole of the pipeline flange 2. If the L-shaped seam allowance 4 is arranged on the inner wall of the flange hole of the pipeline flange 2, the L-shaped seam allowance 4 is matched and positioned with the inner wall of the flange hole of the expansion joint flange 1. The L-shaped spigot 4 not only facilitates the installation of the expansion joint flange 1 and the pipeline flange 2, but also enables the expansion joint flange 1 and the pipeline flange 2 to keep coaxiality, thereby ensuring the stable sealing of the sealing line 3 and further reducing the failure rate.

The expansion joint flange 1 and the pipeline flange 2 are connected by a clamping hoop. The clamp clamps the expansion joint flange 1 and the pipeline flange 2 together.

Further, the clip is preferably a V-shaped clip 5. The V-shaped clamp 5 is provided with a V-shaped clamping groove. One side of the expansion joint flange 1, which is back to the pipeline flange 2, is of a conical structure, and one side of the pipeline flange 2, which is back to the expansion joint flange 1, is also of a conical structure. The two cone-shaped structures are matched with the V-shaped clamping groove. The V-shaped clamping groove clamps the expansion joint flange 1 and the pipeline flange 2, so that the sealing line 3 on the expansion joint flange 1 can firmly abut against the end face of the pipeline flange 2.

The utility model also discloses an engine, including the expansion joint flange, this expansion joint flange is above-mentioned arbitrary expansion joint flange, and above-mentioned expansion joint flange has above-mentioned effect, and the engine that has above-mentioned expansion joint flange has above-mentioned effect equally, so this paper is no longer repeated.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flange, characterized in that a sealing line is arranged on an end face of the flange, the sealing line is arranged around a flange hole of the flange, the sealing line can abut against an end face of another flange, and the flange is connected with the other flange.

2. A flange according to claim 1, wherein the flange is provided with two inclined surfaces on its end face, the intersection of the two inclined surfaces forming the sealing line.

3. The flange of claim 2, wherein the flange is integrally cast or machined.

4. The flange according to claim 1, wherein the flange and the other flange are mutually positioned by a positioning portion.

5. The flange according to claim 4, wherein the positioning portion is an L-shaped spigot, the L-shaped spigot is annular, the L-shaped spigot is arranged on an inner wall of the flange hole of the flange, and the L-shaped spigot is matched and positioned with an inner wall of the flange hole of the other flange.

6. The flange according to claim 4, wherein the positioning portion is an L-shaped spigot, the L-shaped spigot is annular, the L-shaped spigot is arranged on an inner wall of the flange hole of the other flange, and the L-shaped spigot and the inner wall of the flange hole of the flange are matched and positioned.

7. A flange according to claim 1, wherein the flange and the further flange are clamped together by means of a clamping band.

8. The flange of claim 7, wherein the retaining groove of the clamp is a V-shaped retaining groove, the side of the flange facing away from the other flange is tapered, the side of the other flange facing away from the flange is tapered, and both tapered configurations are adapted to the V-shaped retaining groove.

9. A flange according to any one of claims 1 to 8, wherein the flange is an expansion joint flange and the further flange is a pipe flange.

10. An engine comprising a expansion joint flange, wherein the expansion joint flange is as defined in claim 9.