PIG high-elasticity pressurized pneumatic elastic cleaning technology

A highly flexible and technical technology, applied in the field of pipeline cleaning, can solve the problems of high cost and incomplete removal, and achieve the effect of economical saving, saving medicine and equipment, high efficiency and low cost cleaning

Inactive Publication Date: 2018-12-18
金德林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps clear out impurities from long pipe lines by combining both physical removal techniques like pigs that remove greasy deposits on them (Pigging) and chemistry solutions such as strong acids and bases. It also allows multiple layers of cleanings - including different types of cleaners – to work effectively without relying solely upon one type of cleaner being effective at another time. Overall this makes it easier and cheaper than traditional ways of removing these materials.

Problems solved by technology

This patented technical problem addressed by the patents relates to improving the efficiency and effectiveness of chemical methods that use polytetrafluoroethylene (PTFE) tubes or other materials to protect against damage caused by water soluble substances such as calcium hydroxide and silicone grease. These contaminants accumulate over time inside the pipe causing its thickening and reducing its ability to transmit fluids effectively through them. Chemically speaking, these techniques involve applying an acid solution onto the interior walls of the damaged section where they were located beforehand without stopping any fluid flow. However, current technologies require long periods of cleanings which may lead to revenue losses due to increased costs associated with maintainers' labor hours.

Method used

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  • PIG high-elasticity pressurized pneumatic elastic cleaning technology
  • PIG high-elasticity pressurized pneumatic elastic cleaning technology

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Embodiment Construction

[0028] Such as figure 1 and figure 2 As shown, a PIG high-elastic pressurized pneumatic cleaning technology combines PIG cleaning and chemical cleaning, and the pipeline to be cleaned is sequentially PIG cleaning and chemical cleaning. The specific process steps are as follows:

[0029] (1) PIG cleaning

[0030] (1) Detect the direction and position of the pipeline, the type and position of the elbow, and investigate whether there is a reduction in diameter, deformation and in-line bend complexity;

[0031] (2) Use the operating medium of the original pipeline as the back power of the PIG to promote the operation of the PIG to realize non-stop cleaning. Before cleaning, close all branch line valves, close the outlet valve V3, inlet valve V2 and discharge valve V4 on the launch tube, and the main line The valve V1 is open, and the pipeline is running normally to supply water;

[0032] (3) Open the quick-install blind plate of the launch tube, put in the PIG, and close the quic

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Abstract

Disclosed is a PIG high-elasticity pressurized pneumatic elastic cleaning technology. By combining PIG cleaning with chemical cleaning, to-be-cleaned pipelines are subjected to PIG cleaning and chemical cleaning in sequence. The PIG high-elasticity pressurized pneumatic elastic cleaning technology combines PIG cleaning with chemical cleaning, thus efficient and low-cost cleaning of the pipelines is achieved, adaptability is high, the PIG high-elasticity pressurized pneumatic elastic cleaning technology is suitable for cleaning of the super-long pipelines, and a multi-layer cleaning mode can beadopted; through PIG cleaning, the position between two PIGs can be filled with a chemical agent for cleaning, rinse water or air in the pipeline cleaning process, the cleaning, passivation and drying processes can be completed correspondingly, the cleaning technology is greatly simplified, the investment of a large number of drugs and equipment is saved, the more economical and more environmentally friendly effects are achieved, the construction period is greatly shortened, and meanwhile, the gas purging cost is saved greatly.

Description

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Claims

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Application Information

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Owner 金德林
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