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Natural gas filter element and manufacturing method thereof

A manufacturing method and filter technology, applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc., can solve problems affecting sealing effect, short circuit, end face seal installation leakage, etc., to ensure filtration accuracy, improve filtration accuracy, The effect of increasing the service life

Active Publication Date: 2013-01-23
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end face seal is often prone to leakage and short circuit due to installation and processing errors
The O-ring seal is a radial seal structure, often due to insufficient cleanliness of the installation part, which affects the sealing effect and causes a short circuit
[0009] These types of filter elements used in the natural gas filter in the existing gas field gathering and transportation system cannot meet the requirements of high precision and large flow, the end sealing structure needs to be improved, and there is no effective process calculation method for the design of the natural gas filter element

Method used

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  • Natural gas filter element and manufacturing method thereof
  • Natural gas filter element and manufacturing method thereof
  • Natural gas filter element and manufacturing method thereof

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Embodiment Construction

[0032] A natural gas filter element such as Figure 1 to Figure 4 As shown, it includes: a filter layer 4 and a core tube 10 , and the end 11 of the entire filter element includes a fixing ring 3 , a sealing gasket 2 , a sealing ring 1 and epoxy resin paste 12 . The filter layer 4 is a pleated filter layer, which adopts a multi-layer composite structure combining surface filtration and depth filtration, including an outer layer 5 , a middle layer 7 and an inner layer 9 . The outer layer 5 is a dense stainless steel mesh, the middle layer 7 is a polyester or glass fiber filter membrane, the inner layer 9 is a coarse wire mesh, and the non-woven protective layer 6 is used on both sides of the middle layer 7, and the non-woven protective layer 6 has a pore size of 1 to 5 μm.

[0033] The bonding material for pressure injection at the end 11 is epoxy resin mud 12, and then the end of the filter layer 4 is bonded and fixed with the fixing ring 3, and finally the sealing gasket 2 i...

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PUM

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Abstract

The invention discloses a natural gas filter element with high precision and high flow and a manufacturing method of the natural gas filter element. The natural gas filter element adopts a multilayer composite structure; a stainless steel dense screen on the outer layer forms a first surface filtration layer and simultaneously plays an anti-scouring role; a non-woven fabric protection layer formsdeep filtration; a middle layer of a polyester or glass fiber filtration membrane forms a second surface filtration layer; a coarse-grain silk screen on the inner layer plays a supporting role; and an axial sealing and radial sealing structure is adopted at the end part of the filter element. Through a multilayer composite and combined sealing structure, the overall filtering precision, the service life and the performance reliability of the filter element are ensured.

Description

technical field [0001] The invention relates to a filter element in natural gas filtration and separation equipment in natural gas purification equipment, in particular to a natural gas filter element. Background technique [0002] The natural gas filter element requires a large flow rate and is suitable for natural gas media. The single processing capacity of the natural gas filter element requires 10×10 4 N m 3 More than / d, the natural gas dust content in the gas field gathering and transportation system is relatively large. Taking the Sichuan gas field as an example, 1m 3 The dust content of natural gas is about 2~10mg, and the dust with a particle distribution of more than 5μm accounts for about 2 / 3, about 600,000 particles / m 3 above. Natural gas dust is mainly composed of sediment particles brought out from pipeline construction and well bottom, corrosion products of steel, oilfield water and acid gas in natural gas. Most of the sediment dust is irregular polyhedro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/52B01D46/42
Inventor 文代龙谈文虎胡锦曾文陈宇波杨文川米力田
Owner BC P INC CHINA NAT PETROLEUM CORP
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