What is the relationship between cold storage safety and cold storage board selection?-Changzhou yanghu refrigeration equipment co., LTD.

What is the relationship between cold storage safety and cold storage board selection?

发布时间：

2016-12-24

The choice of insulation material in the refrigeration system is also very important to the safety of the entire refrigeration system. In fact, the difference between polystyrene board and polyurethane board is mainly that the thermal insulation effect, price, process and material are different. The thermal insulation effect of polyurethane board is better than that of polystyrene board, and the flame retardancy of polyurethane is better than that of polystyrene board. Now the mainstream choice in the market is also polyurethane cold storage board. In our company, if the customer has no special requirements, the polyurethane board is generally used. Polyurethane itself is not toxic, but will produce a pungent smell when burned. With the different requirements of the market for products, high-end polyurethane cold storage board materials are fire-retardant and flame-retardant, etc.

With the different requirements of the market for products, high-end polyurethane cold storage board materials have fire and flame retardant grades, B1 grade polyurethane cold storage board materials cannot be burned at all, and B2 grades are extinguished after burning for 5-6 seconds. Under normal circumstances, there are many B1 polyurethane cold storage board materials for experimental cold storage installations.

There are two main types of thermal insulation materials widely used in refrigeration systems. One is polystyrene board. Polystyrene board refers to a polystyrene foam sandwich panel with color steel plate as the surface layer, closed-cell flame retardant polystyrene foam as the core material, and the color steel plate is pressed by an automatic continuous forming machine. A high-efficiency mechanism material made of high-strength bonding. Because of its flammability and toxic combustion, this kind of cold storage board is rarely used in the market. There is also a polyurethane cold storage board that is widely used in the market now. The polyurethane cold storage board is made of lightweight polyurethane with good heat insulation performance as the inner material, and the outer plywood is composed of SII, PVC color steel plate and stainless steel plate. Due to the heat transfer generated by the temperature difference between the inside and outside, in order to achieve the maximum efficiency of the refrigeration and refrigeration systems, polyurethane rigid foam is currently the best building thermal material internationally recognized.

According to statistics, there are many manufacturers of cold storage panels installed in cold storages in my country, mainly focusing on Changzhou, the hometown of cold storage panels, and expanding to all parts of the country. At present, the management of the cold storage board market is being strictly standardized. At present, among more than 500 production enterprises in China, 80% of them do not have production licenses. In addition, in the high-end warehouse board market sales, my country stipulates that enterprises must obtain the certification of fire protection, fire protection and flame retardant grade, the lowest grade is B2. Many companies have not reached this level of certification. Relatively speaking, there are only a handful of companies that have achieved fire-retardant and flame-retardant grade B1 cold storage board. At present, the relevant departments have strict control over the production qualification certificate of the library board, which basically belongs to the state of "limited batches".

When it comes to the relationship between the safety of the refrigeration system and the cold storage board, the cold storage board can affect the safety of the refrigeration system to a certain extent. Generally, the installation of large-scale cold storage or precision scientific research, medicine and other cold storage is recommended to use the cold storage board with fire and flame retardant grade, which is conducive to the safety of the refrigeration system. For example, the selection of cold storage boards in the application of cold storage is very important. The cold storage is different from ordinary warehouses. The temperature in the cold storage is generally relatively low, and the requirements for air temperature, humidity and environment are relatively high. So when we choose the cold storage board, we must pay attention to choose the cold storage board with better temperature control. If the cold storage board is not well selected, it will cause the temperature in the cold storage to be difficult to control, which will easily lead to the deterioration of the products stored in the cold storage. Or let the refrigeration compressor of the cold storage work frequently, waste more resources and increase the cost. Moreover, the material of the cold storage board is also closely related to the safety of the refrigeration system. The cold storage board with fire resistance and flame retardant will not burn in the event of a fire in the refrigeration system.