The reasons for the failure of stainless steel reactor during operation are summarized

1. Main types of operation errors

The replacement sequence is incorrect during device replacement cleaning. Procedure During operation, the valve is staggered, or the valve is not opened and closed in time, or the valve is opened and closed in the wrong order, resulting in the equipment holding pressure or gas reflux overpressure, resulting in physical explosion. Feeding too fast or uneven feeding lead to a sharp rise in temperature, or make the equipment in the mother liquid solidification.

Failure to discharge condensate in time or improper operation may result in water overpressure in equipment operation. Due to the operation of the compressor, the pump is evacuated, so that air into the equipment, the formation of combustible mixture. Premature stop the pump and water, resulting in local overheating, melting, perforation of equipment. Throw the wrong material, which causes it to decompose and explode during the recovery process. Stagger the tank outlet valve, resulting in roof overflow and explosion in the case of open fire.

2, the main performance of illegal operations

Stainless steel reactor is not replaced or not completely replaced, trial run or open the manhole for welding maintenance, air into the reactor to form an explosive mixture explosion. Use combustible gas to compensate pressure, pressure test and leak test. No fire analysis, fire treatment, fire operation without fire certificate. Bolts for valves and flanges with pressure fastening devices. Blind pursuit of output, overpressure, overload operation.

Without permission, the liquid level of the storage tank is lowered, so that the water seal does not work or there is no good coordination between the stations, resulting in negative pumping of the compressor and the pump, so that the air enters the equipment to form an explosive mixture. Leave the post during the operation of the equipment, and fail to find the change of the process parameters in the equipment in time, leading to the system explosion of peroxide.

3, the main performance of poor maintenance

In the operation of stainless steel reactor equipment, combustible gas is leaked due to leakage of instrument nozzle and lax valve seal. The sediment is not cleaned up in time, resulting in stainless steel reactor clogging the pipeline and increasing the vacuum degree of equipment. The air enters the gas pipeline through the water seal, forming an explosive mixture in the equipment, or causing a carbon accumulation spontaneous combustion explosion at high temperature.

Instrument failure or damage, such as hydrogen automatic emptying device damage, air entry; When driving, the boiler gas down valve failure, resulting in an increase in oxygen content, even up to 4.2%; The check valve on the vacuum tube of the shrinkage tank fails, and part of the water enters the tank, causing a strong chemical reaction and explosion. Non-condensing gas is not discharged or discharged, resulting in an overpressure explosion.