In the safety protection system of industrial pressure equipment, the burst pressure of bursting disc is the core indicator that determines whether it can accurately release pressure, which is directly related to the safety of equipment and personnel. However, the burst pressure of bursting disc is not a fixed value, but will be flexibly adjusted according to product type, design standards, usage scenarios and other factors. Among them, the reverse arch clamping bursting disc (YJ type) is a typical representative, and its burst pressure characteristics are also of strong reference significance.
In essence, burst pressure refers to the pressure value of the bursting disc when it breaks or flips under the specified conditions, so as to achieve the pressure relief action. This value needs to be accurately matched with the upper limit of the safe pressure of the protected equipment-neither too low to cause frequent malfunction and affect production efficiency; nor too high to relieve pressure in time, causing safety risks. Different types of bursting disc, due to differences in structural design, the setting range and control accuracy of the burst pressure are also different.
Reverse arch clamping bursting disc (YJ type) adopts a unique reverse arch structure and integrated clamping design, which has significant advantages in burst pressure control. It strictly controls the production tolerances through precision manufacturing technology, so that the accuracy of the burst pressure can be effectively guaranteed, so that it can act accurately when the system pressure reaches the set value. The burst pressure setting of this kind of bursting disc will be combined with the working pressure requirements of the equipment. Generally speaking, the maximum working pressure can reach a higher proportion of the specified burst pressure, which can not only meet the pressure carrying requirements during normal production, but also respond quickly when the pressure exceeds the standard.
The choice of material will also have an impact on the burst pressure of the bursting disc. The body of the reverse arched clamping bursting disc (YJ type) bursting disc is made of austenitic stainless steel, while the gripper can choose carbon steel or stainless steel. There are differences in compressive strength and temperature tolerance of different materials. Therefore, when setting the burst pressure, the performance changes of the material under actual working conditions will be fully considered. For example, in a high-temperature or low-temperature environment, the mechanical properties of the material may change. At this time, the setting of the burst pressure needs to be adjusted in accordance with the material characteristics to avoid the deviation of the burst pressure due to environmental factors.
Working conditions are the key variables that determine the burst pressure setting of bursting disc. If the protected system belongs to low-pressure operating conditions, the reverse arched clamping bursting disc (YJ type) can set the corresponding burst pressure according to the low-pressure requirements, which is suitable for the protection requirements of large-caliber and low-pressure systems; If the system has vacuum back pressure, just increase the back pressure bracket, the stability of the burst pressure can still be guaranteed. In addition, the type of medium will also affect the burst pressure setting. For gaseous media, the burst pressure setting of bursting disc will focus more on the pressure conduction characteristics of the medium, so that pressure relief can be triggered quickly when the pressure reaches the threshold value.
It should be noted that the burst pressure of the bursting disc needs to be customized by professional manufacturers according to equipment parameters and working conditions. The bursting disc and gripper of the reverse arched clamping bursting disc (YJ type) must be assembled by the manufacturer and shipped out of the factory to avoid structural deviations caused by self-assembly, which affect the accuracy of the burst pressure. At the same time, during use, if the working conditions change (such as media replacement, pressure range adjustment), it is necessary to re-evaluate and adjust the burst pressure of the bursting disc, or replace the adapted bursting disc so that it always matches the system safety requirements.
