Bimetal joint

A bimetallic joint, welding connection technology, applied in the direction of pipe/pipe joint/pipe fitting, threaded connection, non-detachable pipe connection, etc., can solve the problems of unstable performance, low safety, long delivery time, etc. It is not easy to leak, enhance the sealing effect, and solve the leakage problem

Inactive Publication Date: 2009-06-10
开封黄河空分集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the past, it has been relying on imported products, with unstable performance, low safety,

Method used

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  • Bimetal joint

Examples

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Comparison scheme
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Example Embodiment

[0010] Depend on figure 1 The bimetallic joint shown includes a hollow cylindrical steel joint 3 and a hollow cylindrical aluminum joint 1 fixed outside the steel joint 3. The aluminum joint 1 is divided into front and rear aluminum joints 4 and 5, and the front part of the front aluminum joint 4 It is a tapered pipe and is connected with the steel joint 3 by sealing threads, and the front end surface of the front aluminum joint 4 is also provided with a sealing groove 2, the rear part of the front aluminum joint 4 is interference-fitted on the steel joint 3, and the rear aluminum joint 5 and the steel joint 3 are connected by tapered threads, and the front and rear aluminum joints 4 and 5 are welded. The part on the steel joint 3 that is in interference socket with the rear part of the front section 4 of the aluminum joint is trapezoidal.

[0011] The steel joint 3 and the aluminum joint 1 can enhance the sealing effect through the sealing thread and the interference socket....

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Abstract

The invention discloses a dual metal joint which comprises a steel joint and an aluminum joint which is fixedly arranged outside the steel joint, the aluminum joint is divided into a front section and a back section, the front of the front section is sealed and connected with the steel joint by thread, the front end surface of the front section is also provided with a sealing groove, the back of the front section is sleeved and connected with the steel joint by interference, the back section is connected with the steel joint by tapered thread, and the front section and the back section of the aluminum joint are fixedly connected. The invention relates to a dual-metal joint with the advantages of steady and reliability, high safety, easy installation and uneasy leakage.

Description

technical field [0001] The invention relates to a bimetal joint used in air separation equipment. Background technique [0002] In the internal compression process of air separation equipment, bimetallic joints are often used as the connection between the high-pressure plate-fin heat exchanger and the pipeline. In the past, we have been relying on imported products with unstable performance, low safety, high price, long delivery time, improper temperature control during the welding process and easy cracking. Contents of the invention [0003] The purpose of the present invention is to provide a bimetal joint which is stable, reliable, highly safe, easy to install and not easy to leak. [0004] In order to achieve the above object, the present invention adopts the following technical scheme: a bimetal joint, comprising a hollow cylindrical steel joint and a hollow cylindrical aluminum joint fixed outside the steel joint, the aluminum joint is divided into front and rear se...

Claims

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Application Information

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IPC IPC(8): F16L13/007F16L15/04F16L15/06
Inventor 赵培尧徐浩王好民叶楠卢红太
Owner 开封黄河空分集团有限公司
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