Safety accessories of pressure vessels are as follows:
Safety accessories are a kind of safety devices installed on the equipment in order to make the pressure vessel operate safely, including safety valves, rupture disc devices, emergency shut-off devices, pressure gauges, liquid level gauges, temperature measurement instruments, fusible plugs and so on.
Because of the use of pressure vessels and the chemical process characteristics of the internal medium, it is often necessary to set up a number of safety devices on the vessel and measuring and control instruments to monitor the parameters of the working medium, in order to ensure that the use of the pressure vessel is safe and the process is carried out normally.
Safety accessories are safety devices installed on the equipment in order to make the pressure vessel operate safely. Including safety valves, rupture disc devices, emergency cut-off devices, pressure gauges, liquid level gauges, temperature measuring instruments, fusible plugs and so on.
In the pressure vessel safety accessories, the most commonly used and the most critical is the safety relief device, pressure gauge.
Safety valve: its characteristic is when the pressure vessel under normal working pressure, keep tight, when the pressure in the container once exceeds the regulations, it can automatically and quickly drain the container medium, so that the pressure in the container is always kept within the maximum allowable range.
Safety valves can be divided into spring-loaded safety valves, lever-loaded safety valves and pulse-loaded safety valves. In general, the safety valve as far as possible to be installed in the container body, liquefied gas to be installed in the gas phase parts, while taking into account the safety of the discharge.
Rupture disc: also known as explosion-proof membrane, is a fracture-type safety device, with good sealing performance, fast response to pressure relief and other characteristics. It is generally used on high-pressure, non-toxic gas cylinders, such as air and nitrogen. The rupture disc pressure on the cylinder is generally taken to be greater than the cylinder filling pressure, less than the cylinder design maximum temperature rise pressure.