★ 1. What is pump

Answer: Usually the increase in liquid, transport liquid, or increase the pressure, that is, the machine with the mechanical energy of the primary power machine into a liquid energy is collectively referred to as a pump.

★ 2. Classification of pumps?

Answer: The purpose of the pump is different. According to the principle of action, it can be divided into three categories:

  ①Plipping pump, ② blade pump, ③ other types of pumps

★ 3. The working principle of the volume pump? Example?

Answer: Use the periodic changes of the working volume to transport the liquid.

For example: piston pump, plunger pump, diaphragm pump, gear pump, skateboard pump, screw pump, etc.

★ 4. The working principle of the blade pump? Example?

Answer: Use the liquid interaction of the blade to transport the liquid.

For example: centrifugal pump, mixed flow pump, axis flow pump, vortex pump, etc.

★ 5. The working principle of centrifugal pump?

Answer: The centrifugal pump relies on the role of rotating leaf wheels on the liquid to pass the mechanical energy of the original motivation to the liquid. Due to the acting of the solution of the centrifugal pump from the impeller imports to the export, the speed and pressure can be increased by the liquid discharged by the impeller. Most of the speed of the out of the room can be converted into pressure and then send it out along the exhaust pipeline. At this time, the side of the impeller inlet formed a vacuum or low pressure due to the discharge of liquids.