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The diaphragm diaphragm of the electric diaphragm pump has a design life of 800h and a working pressure of 6mpa. During the process of import and export, the left and right sides of the diaphragm are respectively subjected to a force of up to 4800kN, which is easily damaged by the continuous force.
The diaphragm diaphragm of the electric diaphragm pump has a design life of 800h and a working pressure of 6mpa. During the process of import and export, the left and right sides of the diaphragm are respectively subjected to a force of up to 4800kN, which is easily damaged by the continuous force.
The reason why the diaphragm is prone to damage is as follows:
1. Because the volume of the electric diaphragm pump is constant, if the feed is unstable and the pressure is low, the material level of the feed compensator is lower than 1.2m, and the material in the pressure regulator is not properly fed. Causes the loss of material, pumping, etc., causing hammering or impact or even cavitation, increasing the frequency of the variable stress that the diaphragm is subjected to, resulting in fatigue damage or breakdown of the diaphragm.
2. The volume of the clean air in the diaphragm chamber is not changed with the change of the propellant pressure to form the air hammer. The diaphragm is partially stressed and the diaphragm is broken.
3. The feed temperature exceeds the specified 100 °C to accelerate the aging of the diaphragm. At the same time, steam is generated in the steam generated in the material. When the gas enters the diaphragm chamber or the unloading valve leaks, the pressure of the propellant fluid decreases, resulting in uneven stress and fatigue damage.
4. The feed contains 3-8mm stone children or bulk materials and the solid mass percentage of the slurry exceeds 20%, causing the valve pressure to fluctuate, or the valve cone is not allowed to be caused by the valve cone when the valve is assembled. Increased force caused by cracking.
5. The feeding and discharging of the diaphragm chamber are controlled by the probe detecting the position signal of the control rod. If the magnetic field on the control rod is weak, the probe cannot detect the signal and cannot replenish the oil in time, resulting in excessive force on the diaphragm. rupture.
6. The bearing wear of the diaphragm control rod is severe, causing the control rod to be eccentric and sinking, resulting in an increase in the force of the diaphragm and easy to pull the diaphragm.
7. The differential pressure of the electric diaphragm pump unit causes the diaphragm pump to overpressure, and the diaphragm is subjected to an increase in instantaneous force to cause cracking.
Http://NewsDetail309T2.htmlChina Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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