一种气动隔膜阀

Abstract

本实用新型公开了一种气动隔膜阀，包括输送管、阀体和控制调节部，所述输送管通过法兰盘固定连接在所述阀体的两端，所述控制调节部设置在所述阀体的上端中部，所述控制调节部包括缸壳、压力表、输送连接管和控制阀杆。本实用新型在缸壳上均匀固定设置压力传感器，可实时、精确地监测缸壳内的压力变化，一旦缸壳边缘连接处出现泄漏，缸壳内压力会迅速下降，压力传感器能立即检测到这一异常变化，并及时将信号传输给外部控制系统，这种实时检测功能使得泄漏问题能够被及时发现，避免了因长时间泄漏导致阀门无法正常运行的情况，有效提高了阀门的可靠性和使用寿命。

Claims

1. A pneumatic diaphragm valve comprising a delivery pipe (1), a valve body (2) and a control adjustment part (3), characterized in that: The delivery pipe (1) is fixedly connected to both ends of the valve body (2) by a flange. The control adjustment part (3) is located in the middle of the upper end of the valve body (2). The control adjustment part (3) includes a cylinder shell (4), a pressure gauge (5), a delivery connection pipe (6), an auxiliary control arm (7), and a control valve stem (12). The cylinder shells (4) are fixedly connected to each other by bolts and gaskets. The delivery connection pipe (6) is fixedly connected to the cylinder shell (4). The pressure gauge (5) is fixedly installed on the delivery connection pipe (6). The control valve stem (12) is slidably inserted into the bottom end of the cylinder shell (4).

2. A pneumatic diaphragm valve according to claim 1, characterized in that: Pressure sensors (13) are uniformly fixed on the cylinder shell (4).

3. A pneumatic diaphragm valve according to claim 2, characterized in that: The auxiliary control arm (7) is fixedly installed on both sides of the control valve stem (12).

4. A pneumatic diaphragm valve according to claim 3, characterized in that: The control valve stem (12) is provided with a second electric push rod (11) on both sides. The upper end of the second electric push rod (11) is fixedly connected to a fixed mounting block (9). The first electric push rod (10) is fixedly installed inside the fixed mounting block (9). The front end of the first electric push rod (10) is fixedly connected to a U-shaped lifting control frame (8).

5. A pneumatic diaphragm valve according to claim 4, characterized in that: The control valve stem (12) is slidably inserted into the interior of the valve body (2), and the bottom of the second electric push rod (11) is fixedly installed on the upper part of both ends of the valve body (2).

6. A pneumatic diaphragm valve according to claim 5, characterized in that: The U-shaped lifting control frame (8) is located outside the auxiliary control arm (7), and the cylinder shell (4) is fixedly installed at the upper middle part of the valve body (2) by a support column.

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