Natural gas filtering filter element with multi-stage filtering function and filter

• Main Authors: CUI CHONGYIN, LI KAIHONG, WANG JING, MA JIANLIN, JIA YANJIE, ZHANG ZHIJIAN, LIANG JUN, CHEN SHA, GAO SHIYU, XIA JI
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2021
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING

The invention provides a natural gas filtering filter element with a multi-stage filtering function and a filter, the filter element comprises an inner framework, a filter material body, an outer framework, an upper end cover and a lower end cover which are coaxially arranged from inside to outside, the inner framework and the outer framework are both of a cylinder structure, a first channel is formed in the cylinder wall of the inner framework, a second channel is arranged on the cylinder wall of the outer framework; the filter material body is arranged between the inner framework and the outer framework and comprises at least one layer of absorbent cotton filter material, a polyester non-woven fabric filter material, a first polyester filter membrane filter material and a second polyester filter membrane filter material from inside to outside; the upper end cover is fixedly arranged at the upper ends of the inner framework and the outer framework to form sealing, and a through hole for natural gas to pass t