The diaphragm of the electric diaphragm pump is designed to last for 800 hours and operate at a working pressure of 6 MPa. During the suction and discharge process, each side of the diaphragm experiences a force of up to 4800 kN, which can lead to damage due to continuous stress over time. ![Electric diaphragm pump]()
The diaphragm in an electric diaphragm pump has a design life of 800 hours and operates under a maximum pressure of 6 MPa. As it moves during the suction and discharge cycles, both sides of the diaphragm are subjected to forces as high as 4800 kN, making it vulnerable to failure from prolonged mechanical stress.
There are several reasons why the diaphragm may become damaged:
1. The pump’s internal volume remains constant, so if the feed flow is unstable or the pressure is too low, the material level in the feed compensator drops below 1.2 meters. This can cause improper feeding in the pressure regulator, leading to material loss, pumping issues, or even cavitation. These conditions increase the frequency of variable stress on the diaphragm, resulting in fatigue or failure.
2. If the air volume inside the diaphragm chamber does not adjust properly with changes in propellant pressure, it can create an "air hammer" effect. This uneven pressure distribution causes localized stress on the diaphragm, potentially leading to rupture.
3. When the feed temperature exceeds the specified limit of 100°C, the diaphragm ages more quickly. Additionally, steam generated from the material can enter the diaphragm chamber or leak through the unloading valve, reducing the pressure of the propellant fluid. This results in uneven stress and eventual fatigue damage.
4. If the feed contains particles ranging from 3 to 8 mm in size or if the solid content in the slurry exceeds 20%, it can cause pressure fluctuations in the valves. This may also result in improper seating of the valve cone, increasing the force applied to the diaphragm and causing cracks.
5. The operation of the diaphragm chamber relies on a probe that detects the position of the control rod. If the magnetic field on the control rod is weak, the probe may fail to detect the signal, preventing timely oil replenishment. This can cause excessive force on the diaphragm, ultimately leading to rupture.
6. Severe wear on the bearing of the control rod can cause it to become misaligned or sink, increasing the force acting on the diaphragm and making it prone to tearing.
7. A significant differential pressure in the electric diaphragm pump unit can cause overpressure, subjecting the diaphragm to sudden, high forces that may result in cracking.
For more information, visit: http://NewsDetail309T2.html China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn (Word count: 562)
The diaphragm in an electric diaphragm pump has a design life of 800 hours and operates under a maximum pressure of 6 MPa. As it moves during the suction and discharge cycles, both sides of the diaphragm are subjected to forces as high as 4800 kN, making it vulnerable to failure from prolonged mechanical stress.
There are several reasons why the diaphragm may become damaged:
1. The pump’s internal volume remains constant, so if the feed flow is unstable or the pressure is too low, the material level in the feed compensator drops below 1.2 meters. This can cause improper feeding in the pressure regulator, leading to material loss, pumping issues, or even cavitation. These conditions increase the frequency of variable stress on the diaphragm, resulting in fatigue or failure.
2. If the air volume inside the diaphragm chamber does not adjust properly with changes in propellant pressure, it can create an "air hammer" effect. This uneven pressure distribution causes localized stress on the diaphragm, potentially leading to rupture.
3. When the feed temperature exceeds the specified limit of 100°C, the diaphragm ages more quickly. Additionally, steam generated from the material can enter the diaphragm chamber or leak through the unloading valve, reducing the pressure of the propellant fluid. This results in uneven stress and eventual fatigue damage.
4. If the feed contains particles ranging from 3 to 8 mm in size or if the solid content in the slurry exceeds 20%, it can cause pressure fluctuations in the valves. This may also result in improper seating of the valve cone, increasing the force applied to the diaphragm and causing cracks.
5. The operation of the diaphragm chamber relies on a probe that detects the position of the control rod. If the magnetic field on the control rod is weak, the probe may fail to detect the signal, preventing timely oil replenishment. This can cause excessive force on the diaphragm, ultimately leading to rupture.
6. Severe wear on the bearing of the control rod can cause it to become misaligned or sink, increasing the force acting on the diaphragm and making it prone to tearing.
7. A significant differential pressure in the electric diaphragm pump unit can cause overpressure, subjecting the diaphragm to sudden, high forces that may result in cracking.
For more information, visit: http://NewsDetail309T2.html China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn (Word count: 562)
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