Chemical fluorine lined explosive disc

Chemical fluorine lined explosive disc

Explosive discs are not suitable for environments with frequent overpressure and large temperature fluctuations, as this can reduce the metal strength of the disc and make it easy to release pressure in advance. The pressure in the pressure vessel rises rapidly, and due to the significantly higher hysteresis performance of the safety valve compared to the bursting disc, it is difficult for the safety valve to open and release pressure in a timely manner. In highly corrosive conditions, the material requirements for the use of safety valves are relatively high, and the cost is significantly higher than that of rupture discs. At this time, the release and price of rupture discs are better than using safety valves as safety relief devices.

As a supporting device, clamps and rupture discs are generally required for pressure vessels larger than 1 kilogram when equipped with rupture discs as pressure relief devices. The material of the clamps is usually carbon steel and stainless steel. If corrosive, PTFE clamps can be selected at the inlet and carbon steel or stainless steel clamps at the outlet. When the temperature exceeds 260 ℃, other materials suitable for the working conditions can be considered for the clamps.

Operating conditions of bursting disc:
1. Due to the rapid increase in reaction pressure, the safety valve of the pressure vessel cannot be opened in time, and the high sensitivity of the bursting disc can meet the requirements for pressure relief of the container.
2. The intermediate substance in pressure vessels is prone to crystallization and has a certain viscosity. Using a safety valve can easily cause blockage and fail to meet the pressure relief requirements. In this case, a bursting disc should be selected as the pressure relief device.
3. The medium in the pressure vessel is flammable, explosive, toxic, and highly corrosive. In this case, the cost of selecting a safety valve is high, and the material of the valve core has certain requirements, and the sealing performance may not meet the requirements. In this case, a bursting disc should be selected.
The bursting disc safety relief device provides protection for chemical safety. Jinan Guanyue Machinery looks forward to sincere cooperation with you.

Chemical fluorine lined explosive disc

The use and inspection methods of explosive discs

1. When a container medium is corrosive, flammable, or highly toxic and a bursting disc device is installed, the material of the bursting disc and the bursting pressure determined at the time of design should be indicated on the drawing.
2. The connecting pipe between the explosive disc and the container should be a straight pipe with low resistance, and the cross-sectional area of the pipeline channel should not be less than the discharge area of the explosive disc.
3. The discharge pipeline of the explosive disc should be installed as vertically as possible, avoiding spaces that are accessible to adjacent equipment and operators. When the medium is flammable, toxic, or highly toxic, it should be taken to a safe location for proper disposal. The inner diameter of the discharge pipe should not be smaller than the diameter of the bursting disc discharge, and there should be measures to prevent it from being blocked by bursting disc fragments.
4. The explosive disc should be connected to the gas phase space of the container, and the clamping should be firm. The clamping device and sealing gasket surface should not have oil stains, and the clamping bolts should be tightened.
5. During operation, the bursting disc device should be regularly checked for leaks and abnormalities.
6. Blasting discs should be replaced regularly, and the replacement period should be determined by the user unit based on their actual situation. If the bursting pressure exceeds the calibrated bursting pressure of the bursting disc but fails to burst, it should be replaced.