Generally, when selecting and designing refrigerated door for cold room, we first select 120-150 mm thickness according to the temperature difference between the inside and outside of the warehouse when the temperature exceeds 60 ℃, which is of little practical significance, because the conduction and heat dissipation of the sealing strip is the main factor of the cooling capacity loss at this time, and the second sealing strip is added.
1. The material of the panel mainly includes spraying color steel plate, stainless steel, aluminum plate, etc. the selection of panel material is mainly based on the use environment. The spraying color steel plate (the quality of color steel plate should pass the customs) in an ordinary environment can meet the requirements. Stainless steel and other materials are mainly used in food factories, seafood, or other corrosive environments. ABS, PE, glass fiber reinforced plastic and other materials are emerging in recent years, It has the advantages of corrosion resistance, collision resistance, and lightweight.
2. The door frame is a key factor of the refrigerated door for cold room, and its quality directly affects the heat preservation effect of the door. The standard practice is the PVC profile (other materials can be outsourced) full package method, which on the one hand enhances the heat preservation, on the other hand, strengthens the load-bearing capacity of the door frame and guide rail. In a low-temperature environment, the insulation thickness of the side door frame shall be more than 100mm. The door frame shall be made of poor thermal conductors such as PVC, glass fiber reinforced plastic and other materials as far as possible.
3. In the selection and design, we should consider the opening direction of the door, the net door opening size, threshold style, etc., and reserve enough thickness of thermal insulation layer according to the net door opening size to further calculate the civil reserved door opening and make embedded parts according to a certain size.
4. Safety performance is always our top priority in production. The refrigerated door for cold room must have a qualified escape function, that is, after the cold storage door is locked, people can easily open the lock inside to escape, and can not need additional tools or generate other problems such as cold leakage.