Classification And Use Of Water Pumps

What are the types of pumps
1. Centrifugal pump
Centrifugal pumps are the most common and widely used type of pump. It draws liquid from the center by centrifugal force and pushes it outside through a rotating impeller. Centrifugal pumps can be further divided into single-stage centrifugal pumps and multistage centrifugal pumps according to their structure and characteristics.
2, axial flow pump
Axial flow pumps are mainly classified according to the working principle of the impeller, which pushes the liquid through the axial thrust generated by the impeller. Axial flow pumps are mainly used in large flow, low head applications, such as drainage, cooling systems, etc.
3, mixed flow pump
Mixed flow pump combines the characteristics of centrifugal pump and axial flow pump, both centrifugal force of centrifugal pump, and axial thrust of axial flow pump. Mixed-flow pumps are often used for medium flow and medium head applications.
4. Plunger pump
The plunger pump produces pressure through the reciprocating movement of the plunger or piston in the cylinder block. Plunger pumps are mainly used for high pressure conveying and special process requirements, such as spraying, injection and so on.
5, screw pump
The screw pump is composed of a screw and a shell, and the liquid is pushed through the rotation of the screw. Screw pump is suitable for high viscosity liquid transportation, such as petroleum, chemical industry and other fields.
6. Self-priming pump
The self-priming pump has a self-priming capacity and can automatically pump water from the liquid below the horizontal position. Self-priming pumps are mainly used to pump water from low level liquids or liquids containing air.
7, submersible pump
Submersible pumps are designed to operate completely or partially immersed in liquid. Submersible pumps are often used in well water extraction, drainage, sewage treatment and other fields.
8, air diaphragm pump
Air diaphragm pumps are pneumatically driven and push using diaphragms. Air diaphragm pumps are suitable for applications dealing with corrosive liquids, high viscosity liquids and solid particles.
Classification and use of pumps
According to the working principle
1. Centrifugal pump
The liquid is pumped in from the center and pushed outside by centrifugal force. Commonly used in water supply, irrigation, drainage, pressure and other fields.
2, axial flow pump
The liquid is pumped axially through the blades of the pump. Commonly used in water circulation, cooling system, sewage treatment and other fields.
3, mixed flow pump
Combined with the characteristics of centrifugal pump and axial flow pump, centrifugal force and axial thrust are generated at the same time. Commonly used in water supply, drainage, cooling system and other fields.
4. Plunger pump
Pressure is generated by reciprocating movement in the cylinder through the plunger or piston. Commonly used in high pressure conveying, spraying, injection and other fields.
5, screw pump
It is composed of a screw and a shell and pushes liquid through the rotation of the screw. It is often used in high viscosity liquid transportation, oil field exploitation and other fields.
6. Self-priming pump
With self-priming capacity, it can automatically pump water from the liquid below the level. It is often used for pumping applications containing air or low level liquids.
How to distinguish the types of pumps
1. Booster pump
Booster pump actually refers to the pump used to increase water pressure, when the water heater needs to be pressurized, the water pressure is relatively low in high-rise buildings, the bath needs to be pressurized, the use of sauna, reverse osmosis water purifier needs to be pressurized, the apartment floor water pressure is insufficient, etc., generally can install a booster pump.
2, sewage pump
This is a kind of motor and pump connected, and can go deep into the liquid pump to work together, it and ordinary vertical sewage pump or horizontal pump, the structure will be more compact, and the area is smaller, but the installation and maintenance is more convenient. If the sewage pump is relatively large, it is generally equipped with an automatic coupling device, which makes installation and maintenance more simple and convenient.
3, pressure test pump
This is a kind of pump often used for testing and filling various oil systems, antifreeze, water, etc., its volume is generally relatively small, the weight is relatively light, but the operation is very simple, and most of the parts are made of brass and stainless steel, and the height is sealed using graphite.
4. Fire pump
Fire pump actually refers to the fire pump, which is introduced from abroad, it is generally fully sealed, there will be no leakage, but also has good corrosion resistance, can be applied to the fire department, water treatment department, environmental protection department and so on.
5, circulation pump
Circulating pump refers to the water circulation pump, which is a circulating liquid pump that can transport, absorb, separate, and regenerate the absorbing liquid in the equipment, and its head is generally low, which is widely used to overcome the pressure drop problem in the circulating system.