Undisturbed switching control method of pneumatic regulation valve

Abstract

The invention discloses an undisturbed switching control method of a pneumatic regulation valve. The undisturbed switching control method of the pneumatic regulation valve relates to a device body anda first cavity formed in the device body. A first rotary shaft which extends upwards and downwards is rotatably arranged in the first cavity. The tail end of the top of the first rotary shaft is in power connection with a motor fixedly arranged in the top end wall of the first cavity. According to the undisturbed switching control method of the pneumatic regulation valve, the structure of a device is simple, the performance is reliable, and mounting, maintenance and repair are convenient; the device can automatically detect the rate of flow passing through the device and compares the flow rate with an initial setting, automatic dynamic regulation is conducted according to the flow rate, and thus, it is ensured that the rate of flow passing through the valve is constant; meanwhile, the device can be switched into a manual mode according to requirements, the flow data and the operating state of the device are not changed in the switching process, and thus, undisturbed switching betweenthe automatic mode and the manual mode is achieved; and in addition, the device can generate compressed gas through a micro gas pump, and an external gas source is not needed, so that the mounting procedure is greatly simplified, and the maintenance cost of the device is reduced.

Description

technical field [0001] The invention relates to the field of stable regulation, in particular to a method for controlling the non-disturbance switching of a pneumatic regulating valve. Background technique [0002] With the continuous development of science and technology, the demand for valves is also increasing, and the regulating valve can change the properties of the regulating fluid and is widely used. However, the existing pneumatic regulating valve needs an external pneumatic source and electronic equipment to control the adjustment, which leads to complicated installation and maintenance. Maintenance is difficult, so a new type of equipment is needed to solve such problems. Contents of the invention [0003] The object of the present invention is to provide a control method for bumpless switching of a pneumatic regulating valve, which is used to overcome the above-mentioned defects in the prior art. [0004] The present invention is achieved through the following ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of science and technology, the demand for valves is also increasing, and the regulating valve can change the properties of the regulating fluid and is widely used. However, the existing pneumatic regulating valve needs an external pneumatic source and electronic equipment to control the adjustment, which leads to complicated installation and maintenance. Maintenance is difficult, so a new type of equipment is needed to solve such problems

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