Name: Pneumatic valve actuator wholesale
Manufacturing method of pneumatic actuator with emergency air tank
Pneumatic actuator is driven by air pressure or regulating valve actuator, also called pneumatic actuator or starting device, generally called pneumatic head. Pneumatic actuator is sometimes equipped with some auxiliary devices, commonly used valve positioner and handwheel mechanism. The function of valve positioner is to improve the performance of actuator by using feedback principle, so that the actuator can achieve accurate positioning according to the control signal of controller. The function of handwheel mechanism is to control power failure of the system If there is no output or actuator failure of gas and controller, the control valve can be operated directly to maintain normal production.
The existing technology has the following problems. The existing pneumatic actuator has a relatively single structure and only one automatic switching mode. When the external air supply is damaged, it can only be switched on and off manually. The switch speed is slow and laborious, which is not conducive to popularization.
The utility model aims to provide a pneumatic actuator with an emergency air tank to solve the problems raised in the above background technology.
In order to achieve the above purpose, the utility model provides the following technical scheme: the pneumatic actuator of the emergency air receiver, including the pneumatic actuator, the top of the pneumatic actuator is provided with electromagnets on the left and right sides, the top of the electromagnet is provided with a support iron plate, the upper surface of the support iron plate is provided with a silica gel pad I, the external power supply of the silica gel pad I is fixed at the center of the upper surface II, the external power supply II is electrically connected with two electric telescopic rods, and the two electric telescopic rods are connected in parallel through wires, The movable ends of the two electric telescopic rods face opposite directions. The movable ends of the electric telescopic rods are fixed with a placement plate. The upper surface of the placement plate is fixed with a limit box, which is far from the end of the external power supply II; The silicone pad I nylon braid is fixed on the rear wall I, and the silicone pad I nylon braid is fixed on the front wall II.
The inlet and outlet of the pneumatic actuator are connected to the hose connector, the hose connector is connected to the hose, and the other end of the hose is connected to the air tank through the safety valve.
The left wall of the pneumatic actuator is fixed on the external power supply I, the external power supply I is electrically connected with two electromagnets, and the two electromagnetic drops are connected in parallel through wires.
The limit box is a hollow cuboid structure with an opening on one side. The opening faces the external power supply II. The silicone pad is inherent in the opening II opposite the inner wall of the limit box. The silicone pad II fixes the sponge and the side wall of the limit box.
Several metal rings are fixed at the side of nylon braided belt I away from silicone pad I, and nylon braided belt II spring buckle is fixed at the movable end.
Compared with the prior art, the utility model has the beneficial effect that the pneumatic actuator is detachable
There is an air receiver. When the external air supply is damaged, the pneumatic actuator can continue to work through the air reservoir. When the air receiver is not needed, the air receiver can be disassembled, which will not make the operation of the pneumatic actuator insensitive and reduce the switching effect due to increasing the load of the pneumatic actuator; In addition, the utility model electric telescopic rod, placement plate and limit box allow air receivers of different sizes to be placed on the pneumatic actuator.
