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A fast and firm flange

A flange and strong technology, applied in the direction of flange connection, pipe/pipe joint/pipe fitting, mechanical equipment, etc., can solve the problems of slowing down the construction progress, time-consuming and laborious, and failure of flange connection

Active Publication Date: 2018-07-17
YANCHENG FENGGONG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flange connection is an important connection method in pipeline construction. Flange connection is easy to use and can withstand high pressure. In industrial pipelines, flange connection is widely used. However, during the installation or disassembly of ordinary flanges, bolts are required. Installing or dismantling one by one is time-consuming and laborious, which slows down the construction progress
Moreover, most of the current flanges are connected by fastening bolts. When the fastening bolts fail and are damaged, the flange connection will also fail.

Method used

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Experimental program
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Effect test

Embodiment 1

[0056] The fast and firm flange of this embodiment connects, as figure 1 with 2 As shown, including the first flange 3, the second flange 6, the sealing gasket 4, the fastening bolt 7 and the nut 2, the corresponding positions of the first flange 3 and the second flange 6 are provided with arc-shaped holes 3a respectively, The fastening bolts 7 pass through the arc-shaped holes 3a of the first flange 3 and the second flange 6 in turn to be threaded with the nut 2, and the sealing gasket 4 is arranged between the first flange 3 and the second flange 6. The second method The flange 6 is provided with an annular connecting block 5 near the side of the first flange 3, and the outside of the annular connecting block 5 is shaped on an external thread, and the first flange 3 is provided with a connecting groove matching the annular connecting block 5, and the inner wall of the connecting groove is formed with The internal thread matched with the external thread of the annular connec...

Embodiment 2

[0097] The fast and firm flange of this embodiment is basically the same as that of Embodiment 1, except that the mass percentages of the components in the first flange and the second flange are: C: 0.08%, Al: 1.33%, Zn : 0.61%, Si: 0.18%, Mn: 0.42%, S: ≤0.030%, P: ≤0.030%, Cr: 0.04%, Ni: 0.42%, Cu: 0.37%, V: 0.08%, Mo: 0.02% , Ti: 0.47%, B: 0.02%, Pd: 0.03%, Pt: 0.19%, W: 0.29%, Ta: 0.02%, Nd: 0.07%, Ce: 0.06%, Eu: 0.07%, Lu: 0.15% , Au: 0.46%, Ag: 0.85%, Ga: 0.02%, Y: 0.05%, Sn: 0.43%, Zr: 0.13%, Re: 0.05%, Os: 0.02%, Hf: 0.07%, Bi: 0.17% , glass fiber: 0.16%, calcium oxide: 0.26%, talcum powder: 0.25%, magnesium oxide: 0.29%, copper oxide: 0.18%, iron oxide: 0.39%, manganese dioxide: 0.49%, copper hydroxide: 0.09% , Iron hydroxide: 0.13%, Calcium hydroxide: 0.18%, Barium hydroxide: 0.16%, Sodium chloride: 0.06%, Calcium carbonate: 0.27%, Potassium nitrate: 0.35%, Magnesium chloride: 0.28%, Calcium chloride: 0.09%, potassium chlorate: 0.17%, the balance is Fe.

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Abstract

The invention relates to a flange fast and firm in connection. The flange fast and firm in connection comprises a first flange body, a second flange body, a sealing gasket, a fastening bolt and a nut. The corresponding positions of the first flange body and the second flange body are each provided with at least two arc-shaped holes. The fastening bolt sequentially penetrates the arc-shaped holes in the first flange body and the arc-shaped holes of the second flange body and is connected with the nut in a threaded manner. The sealing gasket is arranged between the first flange body and the second flange body. The side, close to the first flange body, of the second flange body is provided with an annular connecting block. An external thread is machined on the outer side of the annular connecting block. A connecting groove matched with the annular connecting block is formed in the first flange body. An internal thread matched with the external thread of the annular connecting block is machined on the inner wall of the connecting groove. According to the flange fast and firm in connection, the first flange body and the second flange body are connected through the thread of the connecting block firstly and thereafter connected through the bolt when connected, and the two connecting manners are matched mutually, so that connection of the first flange body and the second flange body is firmer and more stable, and the problems of leakage and the like caused by infirm connection are reduced greatly.

Description

technical field [0001] The invention relates to a fast and firm connection flange, which belongs to the technical field of pipeline connection. Background technique [0002] Flanges are also called flanges or flanges, which are parts that connect pipes to pipes and are connected to pipe ends. There are holes on the flange, and bolts can be worn. It usually refers to opening several holes for fixing on the periphery of a disc-like metal body for connecting other things. The existing flange connection is to fix two pipelines, pipe fittings or equipment respectively on a flange plate first, add flange pads between the two flange plates, and fasten them together with bolts to complete the connection. Flange connection is an important connection method in pipeline construction. Flange connection is easy to use and can withstand high pressure. In industrial pipelines, flange connection is widely used. However, during the installation or disassembly of ordinary flanges, bolts are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/032F16L23/18B22C9/04B22C9/22C22C38/06C22C38/02C22C38/04C22C38/18C22C38/08C22C38/16C22C38/12C22C38/14C22C49/08C22C49/14C22C101/06
CPCB22C9/04B22C9/22C22C38/002C22C38/005C22C38/007C22C38/008C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/14C22C38/16C22C38/18C22C49/08C22C49/14F16L23/032F16L23/18
Inventor 宋大帅
Owner YANCHENG FENGGONG MACHINERY
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