Pneumatic valve controller and control method thereof
A technology of pneumatic valves and controllers, which is applied in the direction of valve details, valve devices, engine components, etc., can solve the problems that are difficult to apply to pneumatic motor valve actuators, complex structure, poor execution effect, etc., to achieve good execution effect, Good safety and reasonable structural design
Inactive Publication Date: 2013-10-16
宁波市镇海晴鑫石化机械设备有限公司
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Problems solved by technology
[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a pneumatic valve controller and its control method for the pneumatic motor valve actuator with instantaneous control of the limit switch and its control method, so that it can solve the problem that the structure of existing similar products is relatively poor. Complicated, instantaneous limit, poor execution effect, difficult to apply to the technical problems of air motor valve actuators
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[0022] Now in conjunction with accompanying drawing, the present invention will be further described. like Figure 1~4 As shown, the pneumatic valve controller includes a limit controller 1 and a pneumatic actuator 2. The pipe joint 101 of the limit controller is respectively connected to the forward rotation air hole and the reverse air hole of the pneumatic actuator through the air pipe 3. The forward rotation air hole and the reverse air hole are provided with muffler 5 and pipe joint 4; the pneumatic actuator is an air motor valve actuator, the limit controller is set on the platform plate 202 on one side of the pneumatic actuator, and the screw rod inside the limit controller The gear drive shaft of 10 is connected with the gear shaft of the pneumatic actuator through the gear shaft hole 1001 of the lower shelf plate 13, and the platform plate; the pneumatic actuator is provided with a manual turntable 201. The limit controller is provided with forward-rotating air outle...
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The invention relates to a pneumatic valve controller and a control method thereof, which are designed to solve the technical problem the conventional like products are not applicable to pneumatic motor valve actuators. The pneumatic actuator of the pneumatic valve controller adopts a pneumatic motor valve actuator. The key points of the pneumatic valve controller are that the screw rod of a control core in the housing of a spacing controller is sleeved with a screw rod nut; the gear transmission shaft of the screw rod is connected with the gear shaft of the pneumatic actuator; second pneumatic valves are respectively arranged on two sides of the T-shaped screw rod nut and along two ends of the screw rod nut, and are in a mirror symmetry arrangement; the screw rod nut is arranged between the operating ends of the second pneumatic valves; the pneumatic outlets of the second pneumatic valves are connected with the second air inlets of first pneumatic valves; the pneumatic inlets of the second pneumatic valves are connected with the air inlet holes of the spacing controller through three-way pieces; the three-way pieces are connected with the air inlets of the first pneumatic valves; the air outlets of the first pneumatic valves are connected with the air outlet holes of the spacing controller; the first pneumatic valves are symmetrically arranged on two sides of the second pneumatic valves.
Description
technical field [0001] The invention relates to a pneumatic actuator accessory, in particular to a pneumatic valve controller and a control method thereof. Background technique [0002] The actuator and adjustment mechanism of the pneumatic actuator are a unified whole. According to the structure of the actuator, it can be divided into: film type, piston type, fork type and rack and pinion type. This type of pneumatic actuator is generally equipped with a manual mechanism, a limit switch, a solenoid valve, a filter pressure reducing valve, a muffler, and is connected to the pipeline through a butterfly valve, so that the butterfly valve can automatically complete the opening or closing operation of the pipeline through the pneumatic actuator. The switch of the pneumatic actuator is realized by driving the limit switch through the solenoid valve. Its working principle is as follows: when compressed air enters the pneumatic actuator from nozzle A, the gas pushes the gear to r...
Claims
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IPC IPC(8): F16K31/12
Inventor 高国平
Owner 宁波市镇海晴鑫石化机械设备有限公司