From the performance range of the pump, the flow rate of giant pump per hour can reach several hundred thousand cubic meters above, and the flow rate of micro pump per hour is in dozens of milliliters below; The pressure of the pump can be up to 19.61mpa (200kgf/cm2) from normal pressure; The temperature of the transported liquid can be as low as -200 degrees Celsius and as high as over 800 degrees Celsius. Pumps carry a wide variety of liquids, such as water (water, sewage, etc.), oil, acid, alkali, suspension, and liquid metal, etc.
In the department of chemical and oil production, raw materials, semi-finished products and finished products are liquid, and the raw material, semi-finished products and finished products need to go through complex processes, pumping play in these processes for conveying liquid and provide the role of the pressure of the chemical reaction flow, in addition, also used in many gear pump to adjust temperature.
In agricultural production, pump is the main drainage and irrigation machinery. China’s rural areas are vast, every year in rural areas need a large number of pumps, generally speaking, agricultural pumps accounted for more than half of the total output of pumps.
In mining and metallurgical industry, the pump is also the most used equipment. The mine needs to use the pump drainage, in the dressing, smelting and rolling process, needs to use the pump to supply water first and so on.
In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, and thermal power plants need a large number of boiler feedwater pumps, condensate pumps, circulation pumps, and ash pumps.
In the national defense construction, the aircraft flap, the tail rudder and the landing gear adjustment, the warship and the tank turret rotation, the submarine and so on all need to use the pump. High pressure and radioactive liquid, some also require the pump without any leakage.
In the shipbuilding industry, each ocean liner used in the pump generally more than 100, its type is various.
Others, such as water supply and drainage in cities, water for steam locomotives, lubrication and cooling in machine tools, bleach and dye conveying in the textile industry, pulp conveying in the papermaking industry, and milk and sugar conveying in the food industry, require large Numbers of pumps.
In short, whether it is an airplane, a rocket, a tank, a submarine, a drilling machine, a mining machine, a train, a ship, or a person’s daily life, pumps are needed everywhere, pumps are running everywhere. Exactly so, so the pump is listed as general machinery, it is a kind of production in the mechanical industry.
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