Introduction to the working principle of the blind plate valve on the valve
The blind plate valve is mainly composed of left valve body, right valve body, gear, ring gear, screw, valve plate, sealing ring and other parts. It is composed of a rigid structure body and a support column.
The blind valve is mainly composed of three driving devices, two of which are manually tightened and loosened devices, and one is an electric device that opens or closes the valve plate. In the opening or closing of the gate plate, the manual device is first loosened, and then the electric device is started., In order to achieve the purpose of opening or closing the gate. (When the two manual devices are not loosened, the electric device must not be opened) After the gate switch is completed, the two manual devices are clamped before the pipeline can work.
The electric push rod II acts, the sealing pair is disengaged, and then the electric push rod I acts, the fan-shaped valve plate is turned from open to closed, and after it is closed in place, the electric push rod II acts in the direction again, the sealing pair is clamped, and the valve is closed.
The valve body is provided with a hoist cylinder and a flap cylinder. The opening and closing cylinder drives the left and right valve bodies to complete the loosening and clamping actions through the ring gear, gear and lead screw, and the flap cylinder drives the valve plate to complete the opening and closing action. The rubber sealing ring of the blind plate valve is inlaid on the valve plate, which has good sealing performance and convenient replacement. The valve can be a single remote control, can also be multi-network remote control, abnormal circumstances can also use the valve itself mechanical device manual operation.
The hydraulic fan-shaped blind plate valve is divided into two types: electric hydraulic control and full hydraulic control. The electro-hydraulic air relies on the explosion-proof electrical travel switch to generate a position electrical signal to control the action of the solenoid valve. The full hydraulic control uses a two-position two-way valve as a limiting element, and generates an electrical signal to control the action of the solenoid valve through the hydraulic oil and the pressure relay. The full hydraulic control pressure relay is installed on the hydraulic station, away from the valve, so the explosion-proof performance is good.