Cold storage fire preventionDon't be surprised, you will understand after reading it

Cold storage fire preventionDon't be surprised, you will understand after reading it

At the moment, it is the autumn harvest season, and the cold storage has reached the busiest storage period of the year. During this period, in order to strengthen the fire safety management of ammonia-related cold storage, effectively eliminate the safety hazards of ammonia-related enterprises, and protect the vital interests of the people, inspection teams in many places have been set up to carry out special inspections of cold storage in various places. For all refrigerated fresh-keeping storages and cold wind storages, especially the fire administrative license, fire safety management, building fire protection, electrical facility operation and fire protection, safety evacuation, fire fighting equipment, water sprinkler system, food processing room for ammonia refrigeration enterprises The identification and unblocking of evacuation routes, fire fighting, evacuation emergency plans and emergency drills and other fire safety work shall be inspected.

Cold storage fire prevention|Don't be surprised, you will understand after reading it

　　What are the fire protection requirements of cold storage? I will take you to find out: fire accidents in cold storage mainly occur during construction and maintenance. When cold storage is in normal use, the risk of fire is relatively small. Therefore, the focus of cold storage fire protection should be placed on the construction and maintenance of cold storage.

　　△ Cold base oil preparation and fire protection requirements

　　 In order to prevent moisture from infiltrating from the outer wall, the linoleum moisture-proof layer should be pasted on the wall. Before pasting, apply cold base oil on the wall. Moreover, a large area of painting is carried out, so fire safety must be paid attention to:

　　 (1) When preparing refrigerating base oil, move the asphalt heated and melted by an open flame to a safe place, and then slowly add kerosene after it has cooled down. And it should be constantly stirred to make it evenly mixed.

(2) When applying cold base oil, especially when painting a large area continuously, all other construction operations in the warehouse should be stopped, and the lighting should use a floodlight with a protective shell, and the connector, socket and switch of the light wire They should not be installed in the warehouse, and do not open the guards and shells of the lighting fixtures for repairs during construction, so as to avoid possible sparks that may cause combustion and explosion accidents.

　　(3) After the cold base oil is completely painted, it should go through a safe drying period of 5-7d to make the surface and the inside reach a certain degree of dryness. During this period, the library should still prohibit fire from entering the warehouse and send someone to guard it. It is forbidden to replace kerosene with gasoline or benzene, or mix kerosene with gasoline to prepare refrigeration base oil, and do not use spraying methods during construction.

　　△Fire protection requirements for linoleum moisture-proof layer construction

　　 (1) When welding the steel bars of the wall column of the insert plate, take safety measures to prevent sparks from directly splashing on the moisture barrier. For example, an iron plate is used to separate, so that sparks and slag are splashed on the iron plate and then scattered to a safe place. Below the welding point, someone should be on duty to monitor and prepare fire extinguishing equipment. If necessary, the welded parts and the surrounding areas affected by heat transfer, as well as the moisture-proof layer or cork layer where welding sparks are dropped, can be poured with water to prevent possible smoldering.

　　 (2) The lighting of the construction site should be a floodlight with a protective shell. If conditions are limited, and when high-power bulbs are used, the surface temperature of the lamps is generally above 300°. If they are hung against a combustible moisture-proof layer or heat insulation layer, they will easily burn and catch fire. At this time, the bulb must be temporarily fixed on the iron frame, and the distance from the construction point of the moisture-proof layer (including the temporary storage point of linoleum) is at least 1.5-3m.

　　△Fire protection requirements for cork insulation

　　When using cork (brick) as the insulation layer in the wall of the cold storage and the walls, columns, and tops of the warehouse, attention should be paid to the construction:

　　 (1) When pasting the cork, don't be too concentrated on the working surface, and don't connect several corks at once. After each cork is pasted, there should be a certain interval of time, and there is no abnormal heating, before the hot asphalt is poured, and after a little cooling, continue to lay another cork brick.

　　 (2) When the warehouse is irregularly constructed or the cork bricks have missing corners, it is often necessary to mix them with asphalt to fill them. At this time, they must be heated in a pot with an open flame and fried by hand. Usually, when the stir-frying starts to emit blue smoke, the temperature is close to 300°C, and the heating should be stopped. Otherwise, the temperature will be too high and the filling area will be larger, which will cause heat to accumulate and cause spontaneous combustion of asphalt, linoleum and cork.