Safety valve for online replacement of filter

The safety valve comprises a valve body, a valve seat, a valve clack, a valve cover, a guide sleeve and a pressure setting device, the center lines of an inlet channel and an outlet channel of the valve body coincide, and the valve seat is arranged on a platform between the inlet channel and the outlet channel of the valve body and located on one side of the outlet channel; the filter is characterized in that the filter is arranged in the inlet channel of the valve body, the filter adopts a cylindrical filter screen and is mounted in a cylindrical cavity of the inlet channel of the valve body through a sealing cover, and the filter and the valve body form an integrated structure, so that the mounting quantity and mounting space of equipment are reduced, and online cleaning and replacement of the filter are realized; the product installation space is small, and the filter is convenient to clean and replace. 本实用新型涉及一种在线更换过滤器的安全阀，包括阀体、阀座、阀瓣、阀盖、导向套、压力整定装置，阀体进出口通道中心线重合，阀座设置在阀体进出口通道之间位于出口通道一侧的平台上；其特征是：在阀体进口通道内设置过滤器