Diaphragm compressor and flow regulating method thereof

Abstract

The invention discloses a diaphragm compressor and a flow regulating method thereof. The diaphragm compressor comprises a cylinder component comprising a diaphragm, a hydraulic cylinder, a cover plateand a support plate, wherein the periphery of the diaphragm is fastened between the cover plate and the support plate to form a membrane chamber and oil chamber; the support plate and the diaphragm enclose a hydraulic cylinder; a crankcase, wherein the upper case of the crankcase is connected with a cylinder component; a gear pump, which is arranged on one side of the crankcase and connected witha lower tank body of the crankcase through an oil suction pipe; and at least one plunger pump, which is disposed outside the gear pump and connected with the gear pump through an oil passage. The oiloutlet of the plunger pump is connected to the hydraulic cylinder through an oil replenishing pipeline to supplement oil for the oil chamber. Stepless adjustment of the gas flow rate of the diaphragmcompressor during the operation of a machine can be realized by adjusting the oil replenishing time of the plunger pump, thereby solving the problem of insufficient air suction at the time of oil replenishing of an existing diaphragm compressor. The diaphragm compressor is more convenient and economical, and energy consumption is also reduced.

Description

technical field [0001] The invention belongs to the technical field of diaphragm compressors, and relates to a diaphragm compressor and a flow regulating method thereof. Background technique [0002] In the diaphragm compressor, the function of the cylinder is performed by a membrane cavity, the cover plate and the diaphragm with a dome-shaped inner surface form the membrane cavity, and the support plate with a dome-shaped surface is used to limit the lower limit position of the diaphragm. An oil spill valve is arranged on the hydraulic cylinder arranged under the support plate, many oil guide holes are distributed on the support plate, and an intake valve and an exhaust valve are arranged on the cover plate. When the compressor is running, the motor drives the piston in the hydraulic cylinder through the crank linkage mechanism, and the piston pushes the diaphragm to compress the gas through the oil. When the pressure in the diaphragm chamber reaches the exhaust pressure, t...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the gas flow adjustment method of the existing diaphragm compressor, provide a diaphragm compressor and its flow adjustment method, realize the gas flow adjustment under the non-stop state, and solve the problem of the existing flow adjustment method Problems when used in diaphragm compressors, namely high cost and high energy consumption

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