Hydraulic oil temperature self-circulation accurate regulation and control and self-oil-supplement diaphragm pump system, pump and method

The invention belongs to the technical field of diaphragm pump equipment, and particularly relates to a hydraulic oil temperature self-circulation precise regulation and control and self-oil-supplementing diaphragm pump system, pump and method. The hydraulic oil temperature self-circulation precise regulation and control and self-oil-supplement diaphragm pump system is organically composed of an oil tank, an electromagnetic switch valve, a cooler, an adjustable pressure pilot overflow valve, an electromagnetic reversing valve, an overflow valve, a circulating pump and a controller. A hydraulic cylinder, a propelling hydraulic cylinder, a discharging one-way valve, a diaphragm body, a feeding one-way valve and a hydraulic oil temperature self-circulation precise regulation and control and self-oil-supplementing diaphragm pump system are combined to form the diaphragm pump. The circulating pump and the oil recharging pump are combined, the circulating filtering system achieves circulating cooling and heating of