GAS CLEANING FILTER Russian patent published in 1997 - IPC

FIELD: cleaning gases, natural gases in particular. SUBSTANCE: filter is made in form of extended rounded housing with convex lateral surfaces; filter cartridge with filtering screen is located inside and along it; on one end, housing has cover and on opposite end surface the supply branch pipe is secured, discharge branch pipe being located near it. Both branch pipes are cylindrical in shape and are provided with elbows which are located at joint area with housing and are smoothly bent in way of flow of gas. Branch pipes are so oriented relative to each other that their longitudinal axes are perpendicular in cylindrical portions; branch pipes are provided with at least one hole each for relieving residual pressure of gas. Besides that, holes for relieving the residual pressure of gas are provided in cylindrical portions of branch pipes. EFFECT: enhanced efficiency. 2 cl, 2 dwg