Mechanical vibration in the plunger pump

The plunger pump is composed of many parts, due to the manufacturing error of parts, improper assembly will likely cause vibration and noise of the hydraulic system

Vibration and noise of hydraulic valves hydraulic valve attack noise, due to the variety of valves, application conditions and other detailed conditions are different. According to the cause of its attack can be roughly divided into mechanical sound and fluid sound two categories.

1) the mechanical noise

The large part of the hydraulic valve by the spool, valve body, control parts, fasteners, seals, and so on, he is the process of external force to make the spool movement, spool movement to the corresponding position to change the flow attack, to meet the work of beg. In this process temporary, the valve within the mechanical contact of movable parts attack noise.

2) fluid

Due to the hydraulic valve in the end of austerity, reversing, overflow, so that the flow of liquid in the valve body, direction and back pressure attack of all kinds of innovation, resulting in valve parts and pipe wall vibration, thereby attack noise. According to the cause of the burst pressure vibration, it can be divided into cavitation sound, motion sound, hydraulic impact sound and shock sound. Pipeline vibration and noise this main assumption due to pump, valve and other hydraulic components vibration in the pipeline caused by interaction. Research shows that when the length of the pipeline is exactly equal to half the vibration pressure wavelength integer times, the pipeline will burst into violent high-frequency noise.

In addition, the external source may also cause pipe resonance; When the cross - section of a line dies (expands and cuts sharply, or turns sharply), dui makes its fluid flow innovate, making it turbulent and noisy.

Related products:

GZL Series High Viscosity Lubricating Oil Vacuum Filter

RG Series Coalescing And Separating Oil Filter

Vacuum Brazing Machine For PCD Diamond Tools

Other related products:

Liquid Ring Vacuum Pump
Dry screw vacuum pump
Oil Diffusion Vacuum Pump

The structure and characteristics of centrifugal pump

Centrifugal pump is a kind of pump that USES the centrifugal action generated when the PR wheel rotates at high speed to change the mechanical energy into the kinetic energy and the pressure energy of water to raise water. It is divided by the number of impeller into a single stage pump (only one impeller) and multistage pump (more than two impeller) : according to the impeller inlet way and divided into single suction pump and double suction pump: single suction pump is a single eagle impeller inlet. Its head height, simple structure, reliable work, but the meteor is small, suitable for mobile drainage and irrigation; The double-suction centrifugal pump takes water from the two sides of the impeller with a flow twice as much as the single-suction pump, but its structure is complex, so it is suitable for the fixed farm drainage station with large flow and high head. Ordinary centrifugal pump needs to discharge the air in the pump shell and inlet pipe before working. For small pump, it is necessary to fill the chestnut shell and inlet pipe with water. For large mercury pump, it is necessary to have special auxiliary equipment to pump air and divert water. Another form of centrifugal pump is self-priming centrifugal pump. At present, there are three kinds of pumps used in agriculture irrigation: single-stage single-suction centrifugal pump, single-stage double-suction centrifugal pump and small-sized self-suction centrifugal pump.

Related products:

ZYD Double Stage Vacuum Oil Filter Features

What Are The Advantages Of A Special Oil Filter For Lubricating Oil

Vacuum Brazing Machine For PCD Diamond Tools

Other related products:

Liquid Ring Vacuum Pump
Dry screw vacuum pump
Oil Diffusion Vacuum Pump