"Sulphuric acid pump" crack, who should be held responsible?
On March 15, 2003, one worker working at a pharmaceutical plant in Ningbo, has a sulfuric acid pump in the plant, because it is a centrifugal pump, so the outlet valve is closed without starting the pump. But it turns out the pump broke and leaked large amounts of sulfuric acid, fortunately not hurt people.
Plant engineers say that there is the worker's responsibility. Now just want to find out whether the worker's responsibility? To be sure this "acid pump" is reinforced Polypropylene corrosion-resistant pump.
Should bear some responsibility. Pump poor quality but also because on the one hand, the worker check the pump whether the crack was new, cracking in pump outlet pressure is how much the workers also had to argue data. A high quality pumps should be able to withstand operating pressures of the destination container with pump head liquid column hydrostatic head 120%, which means that the pump does not bear such pressure, pump quality account for a large part.
Some information about moving to close the outlet valve when the pump, the pump starts up, and then open the outlet valve. Such of claims does not completely correctly, for high-speed pump, and conveying density larger of media of pump, pump started of moments, export valve late open, pressure sharp elevated, caused on pump body of shock, while pump are has super pressure of allowance design, but from security angle consider, who also cannot guarantee each Taiwan pump are hundred points hundred security, so, centrifugal pump in started Shi, export valve slightly open 25%-30% is suitable of.