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Internal system of air operated double diaphragm pump
The air-operated double diaphragm pump equipment system consists of one or more double-sided pumps, such as a pneumatic diaphragm pump. The manifold on the pump is separated, so that each side of the pump pumps one component of the multi-component material, and an accumulator is connected with the outputs on both sides, so that the out-of-phase output of the pump becomes the same phase. Diaphragm isolation valves can be used on each side of the pump to prevent the mixed material from returning. If a mixing ratio other than 1:1 is required, more than one such pump can be used together to achieve a variety of mixing ratios.
The diaphragm failure monitoring system is used to detect the leakage of the diaphragm of the diaphragm pump. The system includes a pump which has a working chamber with working fluid inside; a pumping chamber for pumping materials into and out of the pump; and a diaphragm to isolate the working chamber from the pumping chamber. A first optical fiber is connected to the working chamber for transmitting an optical signal through the working fluid. A second optical fiber is connected to the working chamber to receive the optical signal transmitted by the first optical fiber. An electrical signal establishment device that establishes the first electrical signal when the optical signal is transmitted from the first optical fiber and reaches the second optical fiber through the uncontaminated working fluid. This electrical signal establishment device establishes a second electrical signal when the optical signal is transmitted from the first optical fiber, passes through the contaminated working fluid and reaches the second optical fiber. When the second electrical signal is established, according to this, leakage of contaminated materials through the diaphragm into the working chamber can be detected.
The installation method of the diaphragm in the diaphragm pump is based on the geometric size of the diaphragm without affecting the volume change requirements of the pump, and taking full advantage of the excellent pressure resistance of the diaphragm. It has no need to increase the cost and workload. It can greatly increase the service life of the diaphragm, ensure the normalization of production and improve the quality of product production. It can be applied to the installation of diaphragms in various diaphragm pumps.
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