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Pigging object emitter

A technology for launchers and objects, applied in the field of launchers, can solve problems such as cumbersome operation, great difficulty, and difficulty in replacement, and achieve the effects of simple structure and operation process, reduced equipment cost, and reduced possibilities

Inactive Publication Date: 2009-10-28
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing pigging object launcher has complex structure and cumbersome operation
Due to the large number of connected valves and instruments, it is easy to leak, and it is difficult to ensure the tightness when used in deep water. If it is damaged, it needs to stop production and replace it as a whole
When launching underwater, especially in deep water, it needs to be operated by underwater robots, which is difficult
In addition, the underwater launcher also adds a complex remote electro-hydraulic control pipeline, which makes it difficult to guarantee the effectiveness of the control and the tightness of the pipeline. The pigging process needs to stop production. Once the relief valve and pressure gauge are damaged, it is difficult to replace them. and can only launch spherical pigging objects

Method used

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Embodiment Construction

[0021] Such as Figure 2-Figure 4 As shown, the pigging object launcher of the present invention includes: a one-way control valve 2, a one-way control valve 13, a leakage control one-way valve 3, a storage cylinder 5, and the like. A leakage control check valve 3 is set and connected in the oil and gas pipeline 14, and a one-way control valve 2 is set and connected in the bypass branch pipe 1 communicated with the oil and gas pipeline 14. The output of the one-way control valve 2 The end is connected with the input end of the storage tube 5, and several pigging objects 4 are built in the cavity of the storage tube 5, and a storage tube 5 is arranged in the direction perpendicular to the storage tube 5 on the upper part of the storage tube 5-side. The standpipe 9 is communicated and connected as a whole. A cover plate 11 is arranged on the standpipe 9. A gasket is arranged between the cover plate 11 and the standpipe 9. The gasket is made of corrosion-resistant rubber or plast...

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Abstract

The invention relates to a pigging object emitter. The pigging object emitter comprises a control valve and a storage cylinder. A one-way valve is arranged in a pipe; a one-way valve is arranged is arranged in a bypass branch pipe communicated with the pipe; and the one-way valves are connected with the storage cylinder. A plurality of pigging objects are arranged in a cavity of the storage cylinder. A riser pipe communicated with the storage cylinder is arranged on the upper part of the storage cylinder in the perpendicular direction; a cover plate is arranged on the upper part of the riser pipe; a gasket is arranged between the cover plate and the riser pipe; and the cover plate and the riser pipe are connected into a whole through a screw. The cover plate is provided with a plurality of keyway threaded holes; and a plurality of rapid rotating pins penetrate into the storage cylinder through the keyway threaded holes and are fixed. A one-way valve is connected between the storage cylinder and the pipe; and a pigging object emitter circuit is formed through the connections. The pigging object emitter has simple operation and easy part replacement, cleans the pipe during the production process, reduces the possibility of underwater leakage, and greatly reduces the equipment cost. The application range of the pigging object emitter is extended from land to underwater areas including deep water areas and ultra-deep water areas.

Description

technical field [0001] The invention relates to a launcher, in particular to a pigging object launcher for cleaning oil and gas pipelines on land and underwater, isolating different fluids and coating anticorrosion. Background technique [0002] As a device used to control the launch of spherical, cylindrical and other structural pigging objects, the pigging object launcher is widely used in cleaning, isolating different fluids and coating anti-corrosion pipelines for transporting oil, gas and other liquids. Pigging object launchers are divided into single pigging object launch and multi-pig object launch, and can also be divided into land launch and underwater launch. [0003] Such as figure 1 As shown, it is an existing transmitter for pigging objects on land, including: quick-opening door 21, storage tank 20, release valve 22, pressure gauge 23, bus launch valve 25, passing ball indicator 26, bus side Road valve 27, transmitter bypass valve 24, pipelines, etc. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/46F16L101/10
Inventor 周美珍陈欣余国核张定国程寒生
Owner CHINA NAT OFFSHORE OIL CORP
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