CN2236594Y

CN2236594Y - Slope flange

Info

Publication number: CN2236594Y
Application number: CN 95232998
Authority: CN
Inventors: 马思骏
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-12
Filing date: 1995-12-12
Publication date: 1996-10-02
Anticipated expiration: 2005-12-12

Abstract

The utility model discloses a slope flange, the sealing surface of which is not be perpendicular to the axis of pipe lines. The utility model can be made into a single flange, and the utility model can be designed into a joint which integrates with the equipment of the pipe lines. The use of the utility model can solve the difficulties of the maintenance existing in the previous art, and simplify the operation of the maintenance. The utility model is the connecting pieces of the equipment of the pipe lines.

Description

Oblique flange

The utility model belongs to the pipeline technical field of fastening, is specifically related to a kind of flange.

In the various flanges that use, the surface of contact of two flanges all is vertical with the shaft axis of pipeline at present.Flange as the connection of the import and export of various pump classes, valve, pipeline, flowmeter, tank body etc. is much all adopted.When the sealing gasket of equipment, flange or flange damages the generation seepage, just need open flange and change or keep in repair, this is a regular job, this Maintenance and Repair work operations amount is very big, also can run into some thundering difficulties sometimes.Only just change sealing gasket, when big or tube wall was thicker when caliber, pipeline was very hard, has not a particle of the moving surplus of string between two flanges, so take out old sealing gasket, changing Xinmi City's packing all is a very thing of difficulty.A lot of occasions all are to pry open flange with crowbar to change operation, and both labor intensity was big, also the easy damaged pipeline; The way of the employing acetylene that has cutting pipeline is keeped in repair, and has both damaged pipeline, is subjected to the restriction of place condition again, as pipeline ground proximity, wall or be erected in the air, all will increase the difficulty of operation.To high temperature, when poisonous, inflammable and explosive pipeline is safeguarded construction, just difficult especially.

The purpose of this utility model is exactly the difficulty that will thoroughly solve in the pipeline equipment maintenance, make the various pipelines that connect with form of flanges, equipment dismounting, installation, the operation of replacing sealing gasket can be free and relaxed, carry out smoothly.

The technical solution adopted in the utility model provides a kind of oblique flange, and tiltedly flange is one and pipeline shaft axis off plumb plane with the surface of contact of sealing gasket, and the vertical surface of it and pipeline shaft axis has an angle α.

Adopt so oblique flange connections pipeline equipment, be easy to dismounting and installation, two flanges are a little staggered a little, just form a slit between the sealing surface naturally, and sealing gasket, flange and pipeline equipment are all very simple and convenient for changing.For various occasion, the true dip direction on flange inclined-plane can be that axle is adjusted arbitrarily with the pipeline, makes maintenance work not be subjected to the influence of contiguous thing such as wall, ground, also will bring convenience for high-lift operation.

Further specify structure of the present utility model and use below in conjunction with drawings and embodiments.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the application schematic representation of two groups of oblique flanges in the pipeline;

The schematic representation that Fig. 4 is used for existing equipment and oblique flange;

Fig. 5 is the equipment schematic representation that has oblique flange;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the application schematic representation of Fig. 5.

The oblique flange of mode of execution, the face of weld 1 of itself and pipeline equipment, vertical with the pipeline shaft axis, and its Butt sealing face 2 and face of weld 1 have one greater than 0 °, less than 45 ° angles 4, groove 3 is arranged on the sealing surface 2.

Shown in Figure 3 is two groups of oblique flanges installing and using in pipeline.The plane of inclination of two groups of oblique flanges (being sealing surface) is relative, and promptly inclined-plane one end distance that two groups of flanges are relative is from recently, and the other end distance farthest.During maintenance,, make dismounting very convenient from the pipeline and the flange of near-end in the middle of far-end moves.

Among Fig. 4, the oblique flange in the pipeline is used in combination with the existing equipment that is connected with straight flange.When dismounting, also be that middle one section pipeline is moved to the direction of two groups of flange facing distance, make to remove and install conveniently.

Fig. 5 is that the connection mouth with equipment is designed to oblique form of flanges of the present utility model, and promptly flange and equipment connect as one.Its connection such as Fig. 7 in pipeline.It removes and installs very convenient.

Claims

1, a kind of oblique flange, it is characterized in that flange sealing surface 2 and and the vertical surface of the shaft axis of the pipeline equipment of flange welding between an angle 4 is arranged.

2, oblique flange according to claim 1 is characterized in that said angle 4 is greater than 0 °, less than 45 °.

3, oblique flange according to claim 1 and 2 is characterized in that it is the interface that is designed in pipeline equipment, is connected as a single entity with equipment.