Pneumatic throttle valve and use method thereof

Abstract

The invention discloses a pneumatic throttle valve and a use method thereof. The pneumatic throttle valve comprises a valve body; flange plates are fixedly installed at the two ends of the valve body, respectively; a valve deck is fixedly installed at the top of the valve body; a fixed frame is fixedly installed at the top of the valve deck; an air bag is fixedly installed at the top of the fixed frame; a valve rod is arranged between the interior of the air bag and the valve body in a penetrating mode; an indication board is fixedly installed on the front portion of the fixed frame; a pointer is fixedly installed outside the valve rod; an air inlet is fixedly formed in one side of the upper portion of the air bag; a pressing mechanism is arranged in the middle of the upper portion of the air bag; and a diaphragm is fixedly connected into the air bag. According to the pneumatic throttle valve, the shape of a medium circulation channel is improved, medium circulation resistance is reduced, energy consumption of a power source is reduced, the throttle valve can be closed manually when an air bag and a diaphragm are damaged, and the phenomenon that the throttle valve cannot work due to damage is avoided.

Description

technical field [0001] The invention relates to the field of pneumatic throttle valves, in particular to a pneumatic throttle valve, and more specifically to a pneumatic throttle valve and a method for using the same. Background technique [0002] Pneumatic throttle valve is a kind of compressed air to drive the valve stem to move, so that the valve core moves, and the valve core can be adjusted to cover the space of the circulation channel in the valve body, so that the medium flow can be adjusted to achieve the effect of throttling, which belongs to a kind of valve. Usually used for liquid media such as water and oil; [0003] However, the existing pneumatic throttle valves have certain deficiencies in use and need to be improved. First of all, the circulation channels inside the existing pneumatic throttle valve body adopt special-shaped structures, which cause the resistance of the fluid to flow internally. It is very large, consumes the power of the power source, and a...

AI Technical Summary

Problems solved by technology

[0003] However, the existing pneumatic throttle valves have certain deficiencies in use and need to be improved. First of all, the circulation channels inside the existing pneumatic throttle valve body adopt special-shaped structures, which cause the resistance of the fluid to flow internally. It is very large, consumes the power of the power source, and also has a negative impact on the fluid circulation effect, and if the fluid contains solids, floating objects, etc., it is very easy to block; secondly, the existing pneumatic throttle valve does not have manual adjustment When the air bag is damaged and the diaphragm ruptures, air leakage will occur, so the throttle valve cannot be closed. When the throttle valve needs to be closed urgently, the work cannot be performed, which will affect the overall work.

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