Petroleum pipeline with sealing structure comprising ring grooves

A sealing structure and oil pipeline technology, which is applied in the direction of pipes/pipe joints/fittings, threaded connections, passing components, etc., can solve the problems of oil pipeline interface sealing and other problems, achieve the effect of wide market demand and reduce design costs

Inactive Publication Date: 2013-09-11
WUXI JINDING OIL PIPE FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problem of sealing the oil pipeline interface and the stability of the

Method used

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  • Petroleum pipeline with sealing structure comprising ring grooves

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Example Embodiment

[0012] Such as figure 1 As shown, an oil pipeline with a ring groove seal structure according to an embodiment of the present invention includes a body 1, and the two ends of the body 1 are respectively provided with inner conical surfaces 2 with the same taper and equal length. 2 is a smooth surface, and the cone angle of the inner cone 2 with respect to the axis of the body is 3-5 degrees, and each inner cone 2 is provided with a first annular groove 41 and a second Two annular grooves 42, the diameter of the first annular groove 41 is greater than the diameter of the second annular groove 42; a first sealing ring 51 is embedded in the first annular groove 41, A second sealing ring 52 is embedded in the second annular groove 42.

[0013] The cross section of the first sealing ring 51 is circular.

[0014] The cross section of the second sealing ring 52 is rectangular.

[0015] Both ends of the body are provided with external threads 3, and the rotation directions of the external...

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PUM

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Abstract

The invention discloses a petroleum pipeline with a sealing structure comprising ring grooves. The petroleum pipeline comprises a body. Inner conical surfaces with identical conical degrees and equal lengths are respectively arranged at ports of two ends of the body, the surfaces of the inner conical surfaces are smooth, a cone angle between each inner conical surface and the axis of the body ranges from 3 degrees to 5 degrees, a first ring groove and a second ring groove are formed in each inner conical surface, and the diameter of each first ring groove is larger than that of each second ring groove; a first sealing ring is mounted in each first ring groove in an embedded manner, and a second sealing ring is mounted in each second ring groove in an embedded manner. The petroleum pipeline with the sealing structure comprising the ring grooves has the advantages that a sealing effect realized by the sealing rings replaces a rubbing sealing effect, the stability of the integral petroleum pipeline can be affected by the service life of each sealing ring during usage, but the design cost is lowered, and the stability of the integral petroleum pipeline can be improved by means of enhancing the oxidation resistance and the corrosion resistance of each sealing ring; requirements of different service environments on the petroleum pipeline can be met, and the market demand is extensive.

Description

technical field [0001] The invention relates to an oil pipeline with an annular groove sealing structure, belonging to the technical field of oil pipelines. Background technique [0002] The use of oil pipelines to transport oil has low cost and less waste in intermediate links, but the requirements for pipelines and pipeline interfaces are high. Therefore, in order to ensure the stability of oil pipeline transportation, the sealing requirements and structural strength requirements for pipeline interfaces have become a lot of pipelines. It is an important technical problem that manufacturers need to solve. The solution of this problem directly affects major fields related to the national economy and people's livelihood such as oil storage and oil transportation. Therefore, in order to ensure the safety of oil transportation and reduce waste during the transportation process, the applicant designed a petroleum pipeline interface device with good stability and good sealing per...

Claims

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Application Information

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IPC IPC(8): F16L15/04
Inventor 沈金章
Owner WUXI JINDING OIL PIPE FITTINGS
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