Section 1 Uses and Classification of Water Pumps
1. Definitions and Uses
A water pump is a type of machinery that pumps energy liquids. It is a machine that converts the mechanical energy of the prime mover into the potential energy of the pumped liquid. Driven by power machinery, it can pump liquids from low places to high places or distant places to serve production.
The pump can pump water, oil, acid and alkali solutions, liquid metals, pulp, mud, etc. The pump used to pump water is called a water pump, also known as a pumping machine.
Water pumps are used for agricultural irrigation and drainage, which improves the ability of agriculture to resist natural disasters, increases yield, ensures income, and provides material conditions for agricultural mechanization and water conservancy.
Second, the classification and model of the pump.
There are many types of pumps, which are divided into two types: rotary lobe pumps and rotor pumps. The former type is to rely on the rotor of high-speed rotation or reciprocating motion to convert the mechanical energy of the power machine into the energy of lifting or pressurizing fluid, such as vane pumps, positive displacement pumps, and vortex pumpsThe latter type is to convert the working energy into the energy of lifting or pressurizing fluids by working fluids, such as water hammer pumps, jet pumps, internal combustion pumps, air water pumps, etc. However, in agricultural drainage and irrigation and drainage work, vane pumps are used more.
Pump ClassificationWater Pump Classification and ModelThe basic types of commonly used water pumps are as follows:
3. Model representation method.
At present, the pumps used in large and medium-sized pumping stations in China are: IS single-stage centrifugal pump, S (SH) single-stage double-suction centrifugal pump, 1200LW vertical volute centrifugal pump, and 1700ZLB vertical axial flow pump. The vacuum pump is mainly based on SZ type.
1. Single-stage single-suction centrifugal pump: Single-stage single-suction centrifugal pump
2. Single-stage double-suction centrifugal clear water pump
3. Vertical centrifugal pump.
4. Vertical axial flow pump.
5. Vacuum pump