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发明公开
CN104747420A 一种带外漏报警、关停装置的气动隔膜泵 无效 - 驳回

一种带外漏报警、关停装置的气动隔膜泵
摘要：
本发明公开一种带外漏报警、关停装置的气动隔膜泵，包括：第一膜片设于所述工作腔室内，且该第一膜片通过一过渡连接块固定在所述右中间组件上；第二膜片设于所述工作腔室内，且所述第二膜片通过一外护块固定在所述过渡连接块上，所述第二膜片与第一膜片之间形成密闭腔室；一活塞装置，其包括活塞和一顶端设有金属件的活塞筒，所述活塞装置通过气管连接所述密闭腔室，当所述密闭腔室内压力的增大时，所述活塞向上运动直至接近金属件至设定范围；一系统控制室，所述系统控制室连接并控制一警报装置以及一控制气源的电磁阀，所述系统控制室连接所述活塞装置，当所述活塞接近金属件至设定范围时，所述系统控制室控制所述警报装置工作同时所述系统控制室控制所述电磁阀关闭气源。
摘要（英）：

The invention discloses a pneumatic diaphragm pump with outleakage alarm and shutdown devices. The pneumatic diaphragm pump comprises a first diaphragm, a second diaphragm, a piston device and a system control room, wherein the first diaphragm is arranged in a working cavity and fixed to a right middle assembly through a transition connecting block; the second diaphragm is arranged in the working cavity and fixed to the transition connecting block through an outer protecting block, and a closed cavity is formed between the second diaphragm and the first diaphragm; the piston device comprises a piston and a piston barrel with a metal part arranged at the top end, the piston device is connected with the closed cavity through a gas pipe, and when the pressure in the closed cavity is increased, the piston moves upwards until the piston gets close to the metal part to a set range; the system control room is connected with the alarm device and the solenoid valve for controlling a gas source in a controlling mode and is connected with the piston device, and when the piston gets close to the metal part to the set range, the system control room controls the alarm device to work and controls the solenoid valve to close the gas source.

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