Natural gas filter

Abstract

The utility model relates to a natural gas filter, which belongs to a filtering device for natural gas pipelines in petroleum gathering and transportation projects such as natural gas fields, gas transmission and distribution pressure regulation systems, and city gate stations. It includes a cylinder with an opening on the top, a filter element placed in the cylinder, and a sealing mechanism for sealing the opening. The cylinder is provided with a raw material gas inlet, a purified gas outlet, and a sewage outlet. The filter element is The upper end is close to the opening, and the lower end of the filter element is connected to the outlet of the purified gas. The characteristic is that the sealing mechanism includes a high neck extending on the top of the cylinder, a sealing cover, a quarter ring, a protective cover, and fixing screws. Advantages: opening and closing the container becomes fast, convenient, time-saving, labor-saving and cost-saving; the sealing mechanism has a self-locking structure, which uses the pressure of its own natural gas in the container to lift the sealing cover, and the sealing cover and the high neck The space is sealed by an O-ring, and the four-part ring lifts the cover to meet the requirements of self-locking sealing. The sealing performance is good, which can prevent the container from leaking and reduce the incidence of accidents.

Description

technical field [0001] The invention relates to a natural gas filter, which belongs to a filter device for natural gas pipelines in oil gathering and transportation projects such as natural gas fields, gas transmission and distribution pressure regulation systems, and city gate stations, and is used for removing solid particle impurities and moisture in natural gas. Background technique [0002] Natural gas containing various solid particle impurities and moisture must be filtered before use to ensure that the gas source is dry and clean, so that it can enter the user's pipeline for use. The natural gas filter structure in the prior art consists of figure 1 As disclosed, it includes a cylinder 1 with an opening 11 on the upper part (head), a filter element 2 placed in the cylinder 1, and a sealing mechanism for sealing the opening 11. The cylinder 1 is provided with a raw material gas Inlet 12, purified gas outlet 13, sewage outlet 14, the upper end of the filter element 2 ...

AI Technical Summary

Problems solved by technology

The problem exposed in the actual use of the sealing mechanism in the above structure is: due to the connection method of the flange, flange cover, and bolt assembly, multiple people are required to operate each time the filter element is replaced, and a lot of manpower is required and financial resources

However, each filter generally needs to be replaced 2-3 times a year, and the total cost is about 8 million to 12 million yuan per year, which wastes a lot of manpower, material resources and financial resources.

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