The volume of the lateral space
A gear pump is a rotary pump relying on the working volume change and movement formed between the pump cylinder and the engaged gear. It consists of two gears, the pump body and the front and rear covers. When the volume of the gear rotates, the volume of the space on the detached side of the gear changes from small to large, forming a vacuum, and the liquid is inhaled. The volume of the space on the engaged side of the gear changes from large to small, and the liquid is squeezed into the pipeline. The suction chamber from the discharge chamber is separated by a engagement line of two gears. The pressure at the outlet of the gear pump depends entirely on the size of the pump source resistance.
In the next 10 years, the goal of the gear pump industry development plan is to increase the proportion of scientific research and development investment in the GDP of pump manufacturing industry to more than 12%, increase the technological contribution rate of pump manufacturing industry to reach 78%, and promote the construction of innovative pump manufacturing industry with modern equipment manufacturing industry as the core.
During the 12th Five-Year Plan period, the key research and technical reform projects of the gear pump industry are mainly reflected in two aspects:
On the one hand, the technical research of nuclear power hub equipment is mainly to carry out the technical research of ap1000 nuclear main pump hub; the second generation plus technology of 1000 nuclear main pump hub technology, the technical research of nuclear secondary and nuclear tertiary pump hub, the technical research of nuclear power pump and the research on the technical scale of nuclear power pump.
On the other hand, the technical research of petrochemical hub equipment includes the technical research of screw pump, gear pump, high pressure small flow pump, emergency cold oil pump hub, etc.
