As an important overpressure protection device, food industry bursting discs has the characteristics of rapid response, strong sealing, and wide range of applicable media, and plays an important role in the safe production of the food industry. Food industry bursting discs can burst instantly when the pressure in the equipment or pipeline exceeds a set threshold value, releasing the pressure, preventing safety accidents such as explosions and leaks caused by overpressure, and at the same time ensuring product quality and the cleanliness of the production environment.
In the food processing process, many links involve high temperature, high pressure or vacuum environments. The application of food industry bursting discs runs through the entire process from raw material processing to finished product packaging.
In sterilization equipment, such as high-temperature and high-pressure sterilizers, a specific temperature and pressure need to be maintained inside to kill microorganisms. If the pressure control system fails, the pressure in the pot may suddenly increase rapidly, and there is a risk of explosion. Food industry bursting discs are installed at the pressure relief port of the sterilizer. When the pressure in the pot exceeds the preset safety value, the rupture disc will immediately rupture, quickly releasing the pressure to ensure the safety of equipment and operators.
In fermentation equipment, the microbial fermentation process produces gas, which causes the pressure in the fermentation tank to rise. Part of the fermentation process needs to be carried out in a confined environment. If the pressure cannot be discharged in time, the tank may be deformed or even broken. Food industry bursting discs can accurately set the burst pressure according to the design pressure of the fermentation tank, and when the pressure in the tank rises abnormally, the discharge channel is quickly opened to make the fermentation process safe and stable.
In drying equipment, such as spray drying towers, it is used to dry liquid raw materials into powdered products. During the drying process, if there is dust accumulation or electrostatic sparks in the tower, it may cause combustion and explosion, causing the pressure to rise sharply. Food industry bursting discs can rupture in time when the pressure exceeds the safe range, reducing the loss caused by the explosion, while reducing the risk of product contamination.
The particularity of the food industry also puts forward special requirements for food industry bursting discs. In terms of material selection, the rupture disc needs to meet food-grade or medicinal-grade standards. The rupture disc material in direct contact with the product must be non-toxic, odorless, corrosion-resistant, and will not release harmful substances into the product. In terms of cleanliness, the design of the rupture disc needs to avoid sanitary dead ends, the surface should be smooth and easy to clean, prevent the growth of microorganisms and product residues, and comply with GMP requirements. In terms of the accuracy of burst pressure, the process pressure range of food is narrow. The burst pressure of the rupture disc needs to accurately match the design pressure of the equipment, not only to ensure that it will not burst in advance under normal working pressure, but also to be able to operate reliably during overpressure. Therefore, the manufacture of rupture discs requires strict control of accuracy, and they need to be calibrated and tested one by one before leaving the factory to keep the burst pressure error within the allowable range.
