Natural gas filtering and purifying device

Abstract

The invention relates to the technical field of natural gas filtering, and provides a natural gas filtering and purifying device which comprises a tank cover part, a tank body part and a filtering assembly, the tank cover part is arranged on the upper portion of the tank body part, the tank body part comprises an outer shell and an inner shell, the inner shell is sleeved with the outer shell, and an interlayer is formed between the outer shell and the inner shell; the interlayer is filled with a molecular sieve, the filter assembly comprises a filter element and a driving part, the filter element is arranged in an inner cavity defined by the inner shell, the driving part is arranged on the lower portion of the tank body part and can drive the filter element to ascend or descend in the axial direction of the tank body part, and a connecting pipe used for communication is arranged between the interlayer and the inner cavity; the filter element is convenient to take out and install, collision between the filter element and the tank body part is avoided when the filter element is taken and placed, the filter element in the inner cavity plays a primary filtering role, the molecular sieve in the interlayer plays a secondary filtering role, and solid particles and trace liquid in natural gas can be rapidly filtered and purified.

Description

technical field [0001] The invention relates to the technical field of natural gas filtration, in particular to a natural gas filtration and purification device. Background technique [0002] In the process of drilling natural gas, the natural gas output by drilling generally contains solid particles and trace liquids. Therefore, a filter is usually installed on the natural gas transmission pipeline. Only the natural gas filtered and purified by the filter can meet the purity requirements for use, otherwise it will affect the natural gas. Burning effect. [0003] The existing natural gas filtering devices mainly have the following defects: [0004] (1) The casing of the natural gas filter device is generally in the shape of a vertical tank, the tank cover is not easy to open, and a filter element is installed inside. Because the tank-shaped shell is deep and the filter element is long, when the filter element is placed in the tank and taken out for cleaning or replacement ...

AI Technical Summary

Problems solved by technology

[0004] (1) The casing of the natural gas filter device is generally in the shape of a vertical tank, and the tank cover is not easy to open. There is a filter element inside. Since the tank-shaped shell is deep and the filter element is long, when the filter element is placed in the tank and taken out for cleaning or replacement It is not easy to operate, and it is easy to collide with the tank body, and the filter element is easily damaged and leaked after being collided, which affects the natural gas filtration effect;

[0005] (2) In addition, natural gas solid particles and liquid filtration generally use multiple different filter devices for multi-stage purification and separation. The connection of multiple different filter devices must strictly ensure the sealing performance. The construction and testing are cumbersome and occupy a large area.

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