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  3. What is the cause of diaphragm compresso...

What is the cause of diaphragm compressor diaphragm rupture?

What is the cause of diaphragm compressor diaphragm rupture?

The diaphragm rupture is abnormal rupture, that is, the diaphragm compressor use time does not reach the service life limit value and caused by the rupture, or continuous rupture.

Root cause: the metal chips or sand particles brought by the diaphragm compressor is not cleaned up, so that it is cracked or penetrated under ultra-high pressure; the hydraulic cylinder sleeve is loosened, which increases the total discharge area of the piston rod, which increases the discharge pressure and exceeds the yield limit of the diaphragm compressor diaphragm. Such things are rare, but not easy to find out, and can not find out the cause.

Resolution method: The diaphragm compressor is equipped with a diaphragm rupture detection system. If the discharge valve releases steam, the gas end diaphragm breaks; if the oil is released, it means that the oil end diaphragm breaks; if the release gas contains oil, both sides are cracked.

Treatment method: replace the diaphragm compressor strictly according to the requirements; if the cylinder sleeve is loose, repair and fix.

The cylinder head sounds too loud

The diaphragm compressor operates very quietly normally, but sometimes (especially after maintenance) the cylinder hair produces a large metal material percussion sound.

Root cause: the pressure limit valve is in the open position, or the pressure limit valve torsion spring is too loose, or the diaphragm compressor compensation pump work is not normal operation. The consumption of the pressure limit valve under the first two conditions exceeds the compensation amount of the compensation pump, resulting in a relatively large residual gap and interior space of the hydraulic cylinder. When the diaphragm compressor breaths four strokes, the diaphragm immediately with the packing below. This problem will also occur if the compensation pump does not work normally and cannot fill the oil leakage of the cylinder body.

Resolution method: blunt the cylinder head of the diaphragm compressor, listen to the cylinder head is not spread "when, when, when" clear sound; see if the pressure limit valve is in the normal part, the compensation pump plunger pump posture there is no problem, discharge the oil pipe spray out.

Treatment method: put the pressure limit valve of the diaphragm compressor into the operating part; loosen the pressure limit valve loosening nut, slowly tighten the torsion spring until the cylinder head brittle sound subsided and the exhaust pressure is normal, and finally twist the loosening nut; find the main reasons for the irregularities of the compensation pump work, and properly handle.


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    • Psa Oxygen Generator
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