Adjustable ground lining pipeline union connecting joint

A connecting joint and adjustable technology, applied in the direction of sealing surface connection, pipe/pipe joint/pipe fitting, passing element, etc., can solve the problems of waste and increase cost, and achieve the effect of convenient operation, convenient maintenance and compact structure for pipeline replacement.

CN111486279APending Publication Date: 2020-08-04CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-08-04

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Abstract

The invention discloses an adjustable ground lining pipeline union connecting joint which comprises a male head, a female head, a union and a pipe column. A right port of the male head corresponds toa left port of the pipe column. A left port of the union is hung to the outer wall of the male head in a sleeving manner. A pipe column external thread is formed on the outer wall of the pipe column.A female head internal thread is formed on the inner wall of the female head. A female head external thread is formed on the outer wall of the female head. A union internal thread is formed on the inner wall of the union. The union is in screw thread connection with the female head external thread of the female head through the union internal thread of the union. The female head is in screw threadconnection with the pipe column external thread of the pipe column through the female head internal thread of the female head. According to the adjustable ground lining pipeline union connecting joint, the position of the female head on the pipe column is adjusted so as to facilitate replacement of a certain pipeline, ground lining pipeline maintenance can be conveniently carried out, the adjustable union connecting joint is high in adaptability and compact in structure, and pipeline replacement operation is convenient.
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Description

technical field

[0001] The invention relates to the technical field of union joints of ground lined pipelines in petroleum mechanical engineering, in particular to an adjustable ground lined lined union joint. Background technique

[0002] The ground-lined pipeline union joint is a connecting device that can facilitate the replacement of pipelines. As a device for connecting two pipelines, a certain pipeline can be replaced without changing the length of the pipeline, which is convenient for maintenance. In order to solve the problems of perforation and scaling caused by corrosion and abrasion of ground pipes, ultra-high molecular weight polyethylene with the characteristics of wear resistance, corrosion resistance, scale resistance and self-lubrication is used as the inner lining layer inside the pipeline. At present, the fixed union connection joint of the ground lining pipeline makes the male head and the female head directly clamp the gasket under the action of the union...

Examples

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] see Figure 1 to Figure 2 , the present invention provides a technical solution: an adjustable ground-lined pipeline union joint, including a male head 1, a female head 3, a union 2, and a pipe string 4, the right port of the male head and the left port of the pipe string Correspondingly, the left port of the union is hung on the outer wall of the male head, the outer wall of the pipe string is provided with a pipe string external thread, the inner wall...