Backwash solenoid valve control system of water filter

• Main Authors: ZHANG CHEN, LI JIANGTAO, WANG YANZHAO, HE LIN, WANG SHIFENG, LIU ZHIRU, ZHAO WENJING, XU YONGQI, LIN HAIYUN, MA LIJUN, SUO QUANBAO, YAO LIN, ZHANG YONGKANG, FAN ANGUO, LI HUAIQING
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2023
• Subjects: ACTUATING-FLOATS; BLASTING; CHEMISTRY; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; VALVES; WEAPONS

The invention provides a backwash solenoid valve control system for water filters, which comprises an air source, air filters, an oil mist catcher, a pressure reducing valve, a solenoid valve and an exhaust pipe, the air source is connected in parallel with a main air pipe of the air filters through a tee joint, and the air filters are connected with the solenoid valve and the exhaust pipe through pipelines. Wherein an oil mist catcher and a pressure reducing valve are arranged on a pipeline between the air filter and the exhaust pipe. The air source is used for replacing filtered water pressure to serve as a power source of the electromagnetic valve. Electromagnetic valves of the filtering tanks are connected in parallel through pressure-resistant instrument air pipes, a pressure reducing valve is additionally arranged to adjust the pressure to the power source pressure required by an equipment manufacturer, an air source pushes diaphragms of the electromagnetic valves to act to achieve the effect of replaci