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Dry powder extinguishing system is one of the four traditional fixed fire extinguishing systems (water extinguishing system, gas fire extinguishing system, foam extinguishing system, dry powder extinguishing system). Superfine dry powder fire extinguishing device is welcomed by users because its particle size is smaller than that of ordinary dry powder. Hanging fire extinguisher is a dry powder fire extinguishing device, which has the characteristics of convenient construction and installation and less engineering investment. Many units directly purchase equipment and install it by themselves, but because they are not professional constructors and do not know much about the specifications, many problems often occur. Manufacturers of suspended fire extinguishers are often asked about the installation of suspended ultra-fine dry powder and the installation height of suspended ultra-fine dry powder fire extinguishing devices.

The installation height of suspended ultra-fine dry powder fire extinguishing device is as follows:

1. When the protected object is combustible liquid, the distance between the setting position of the fire extinguishing device and the liquid level shall not be less than 1m, and the dry powder shall be sprayed to prevent liquid splashing.

The air flow and dry powder emitted by the ultra-fine dry powder fire extinguishing device can only be completely mixed beyond 1m. In order to prevent the splashing of combustible liquid in the protected place, it is required that the close distance between the superfine dry powder fire extinguishing device hanging fire extinguisher and the protected object shall not be less than 1m.

2. The protection height of pressure storage ultra-fine dry powder fire extinguishing device shall not exceed 6m, and the protection height of non pressure storage ultra-fine dry powder fire extinguishing device shall not exceed 8m. When the protection height exceeds the protection height of ultra-fine dry powder fire extinguishing device, it shall be set in layers, and its installation height shall be calculated according to the small installation height certified by the authority.

The distance between the high installation height of the ultra-fine dry powder fire extinguishing device and the dry powder spraying effect of the fire extinguishing device shall be determined according to the engineering practice and the corresponding domestic technical standards; The protective space with warehouse height or goods stacking height exceeding 8m can be solved by special layout, and the specific design scheme shall be demonstrated for special projects.