Novel high-pressure and high-temperature resistant gate valve

• Main Authors: XUE HONGQUAN, WANG QIAOBO, YANG QINGFENG, GUO RUIHAO, LI HUAGUI, LEI LEI, YANG CONG
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: ACTUATING-FLOATS; BLASTING; 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; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VALVES; WEAPONS

The novel high-pressure and high-temperature resistant gate valve is simple in structure and capable of filtering and preventing a water hammer and comprises a valve body, a valve cover arranged on the valve body, a water inlet channel and a water outlet channel which are formed in the valve body, a valve plate arranged between the water inlet channel and the water outlet channel and a fixing plate, a valve rod is rotationally arranged in the valve body, one end of the valve rod is connected with the valve plate, and the other end of the valve rod is connected with the valve cover. The other end of the valve rod penetrates out of the valve cover, the fixing plate is fixedly arranged in the water inlet channel, a fluid channel allowing fluid to pass through is formed in the fixing plate, a filter screen used for filtering impurities is arranged in the fluid channel, and sliding channels are formed in the positions, located at the two ends in front of the filter screen, of the water inlet channel. A first slidi