Long-life pneumatic actuator of high-frequency pneumatic butterfly valve
A pneumatic actuator, pneumatic butterfly valve technology, applied in the valve operation/release device, valve details, valve device and other directions, can solve the problems of inability to improve the pneumatic valve, poor effect, increase cost, etc., to save the cost of valve spare parts, The effect of improving the service life and prolonging the service life
Pending Publication Date: 2020-02-04
赤峰金通铜业有限公司
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Problems solved by technology
[0006] At present, the existing technical solutions are not only complicated in structure and poor in effect, but also unable to improve the original pneumatic valve, thus increasing the cost
Method used
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Embodiment Construction
[0015] Combine below figure 1 and figure 2 , to further illustrate the present invention.
[0016] As shown in the figure, the long-life pneumatic actuator of the high-frequency pneumatic butterfly valve includes a cylinder 1 and a housing 2, and a through hole is opened on the housing 2, and the through hole is equipped with a cavity respirator 5; the cylinder 1 The piston rod is connected to the actuator rotating shaft 7, the actuator rotating shaft 7 is connected to the actuator connecting shaft 6, one end of the actuator connecting shaft is connected to the actuator rotating shaft 7, and the other end is connected to the valve stem 3 through a fixing screw; The actuator rotating shaft 7 and the actuator connecting shaft 6 are located in the cavity of the housing.
[0017] In order to solve the problem of excessive wear of the valve during the normal operation cycle, ensure the rotation stroke of the valve and the sealing of the valve plate, and reduce the air leakage ra...
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The invention discloses a long-life pneumatic actuator of a high-frequency pneumatic butterfly valve. The long-life pneumatic actuator comprises an air cylinder and a shell. A through hole is formed in the shell, and a cavity breather is arranged on the through hole. A piston rod of the air cylinder is connected with an actuator rotary shaft, and the actuator rotary shaft is connected with an actuator connecting shaft. One end of the actuator connecting shaft is connected with the actuator rotary shaft, and the other end of the actuator connecting shaft is connected with a valve rod through afixed screw. The actuator rotary shaft and the actuator connecting shaft are located in a cavity of the shell. According to the pneumatic actuator, the service life of the valve is greatly prolonged,the air leakage rate is reduced, the equipment downtime is shortened, and a large valve spare part cost is saved; and the service life of the pneumatic valve is prolonged to one year from original twomonths, the service life is effectively prolonged, and cost is effectively reduced.
Description
technical field [0001] The invention relates to the field of valve actuators, in particular to a long-life pneumatic actuator for a high-frequency pneumatic butterfly valve. Background technique [0002] The pneumatic butterfly valve is a pneumatic valve that uses a circular butterfly plate that rotates with the valve stem to open and close to realize the activation action. It is mainly used as a cut-off valve, and it can also be designed to have the function of adjustment or section valve and adjustment. The disc valve is used more and more in low-pressure large and medium-diameter pipelines. The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be quickly opened and closed by only rotating 90°, and the operation is simple. At the same time, the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the...
Claims
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IPC IPC(8): F16K31/122F15B15/20F15B15/08
CPCF15B15/08F15B15/20F16K31/122
Inventor 任尔彤郝建伟李皖宁陈志刚徐国舵周雪冬蒋治国
Owner 赤峰金通铜业有限公司