【 Weak current College 】 logistics warehouse fire characteristics and fire-fighting equipment selection

Summary: through the analysis of logistics warehouse General easy formation fire hazard of bad links, and discusses coping with this situation of some of the responses.
　　
Keywords: logistics warehouse fire hazard response strategy
　　
Fire protection, fire fighting, for personal society to speak, is almost a long subject, as long as there are places where combustible exist, there is the possibility of a fire, and as the daily production, material flow in the life of a transit point, logistics warehouse since the scene complexity, material stacking density, very vulnerable to fire, so logistics warehouse fire safety, has been a fire research topics.
Warehouses: general sense refers to storage and place the material in place or building material is highly concentrated, high density material piling up, in the event of fire, and the economic losses are often very serious. Links for logistics, material flow frequent population, difficult to manage, the author from the following simple deconstruction warehouse fire occurrence of character and style.
　　
General characteristics of logistics warehouse
　　
1, fuel storage of large, highly centralized stacked. General non-professional logistics warehouse storage of goods in more RAM are not professional classification, storage and mixing fenku in a library, stacked in ways most of the stacking, shelf storage, pallet storage, and other common methods. Plentiful, density, type complex.
　　
2 the layout is not normative, the necessary fire channel blocking. For reasons of cost considerations, General Logistics links can take advantage of the space to be used to, some security must be reserved space is being used, the entire warehouse stack partition clutter, layout lack scientific guidance. Some enterprises will warehouse, workshop in one Department, does not meet the necessary fire safety standards; occurs after the workpiece material often fire "burning even camp," but because fire channel is blocked, the fire is often the best time for delay and unnecessary loss.
　　
3, security personnel, management is not strong enough in place leads to discovery of late fires; warehouse the size and scale of the expenditure determines how much of the warehouse management personnel, daily working time as employed persons, to be able to achieve this fundamental Cucu someone; and the sharp drop in staff after work, usually only wired by someone on duty, unable to timely detection of fire and extinguishing time delay.
　　
4. for security reasons and urban construction planning needs, most of the warehouse location in the suburbs and population density in relatively small areas, because of geographical constraints, these places are mostly fire-fighting capability.
　　
From the Treasury building requirements, logistics warehouse General Treasury long, room of span, ceiling height, fire resistance rating of low, flammable items stack density, speed, a burning fire-prone scale; fire complex, combustible incomplete combustion, producing a large number of high-temperature toxic smoke, Sightline, is not conducive to evacuation; as a result of the fire conditions easy-to-air convection, causing fuel Ember fly spray, easy to throw it at fire and unwitting.
　　
Appropriate prevention and extinguishing means
　　
The above situation, combined with some of the fire industry experience on logistics warehouse fire prevention and fight against crime, apart from general measures such as job area security education, universal fire safety knowledge, on the stack for the Treasury supplies reasonable arrangements, related departments regularly random checks, to fire conditions failed to timely rectification, enrich the on-duty staff and implement daily inspection staff duties, strict supervision of their daily work, and so the necessary fire safety measures, to minimize fires caused by people, material damage, you must increase the necessary prevention and fire-fighting equipment financing, selection of truly suitable logistics warehouse efficiency of such situations; fire-extinguishing equipment
　　
Comprehensive market existing fire-fighting capabilities of products, combined with logistics warehouse fire occurred at the beginning of combustion, fire rapidly characteristics, fire extinguishing equipment selection problem, I simply explained the following observations:
　　
The warehouse this specific fire-fighting equipment on fire performance, speed, analysis of the applicability of common fire extinguishing agent is as follows:
　　
Ordinary dry powder: universal coverage, a fire-fighting capability, the most common materials warehouse, however, is being used than other kinds of fire, the fire performances flat, not adapted to fight severe burning, a large fire; logistics warehouse this class on fire equipment fire-fighting capability requires extremely high occasions and not very practical.
　　
Carbon dioxide: release in order to achieve effective fire extinguishing concentration, take some time, belong to the oxygen through the isolation of a physical fire extinguishing agents, fire-fighting capability of slow, limited, and the resulting liquid CO2 evaporates the water vapor in the air surrounding a large number of condensation liquefaction, and produces acid mist, to be protected from adverse impact.
　　
Heptafluoropropane: as a substitute for halon fire extinguishing agent, resembling the extinguishing effect is good, but fire extinguishing process easy and high-temperature flame and reaction occurs, the resulting highly toxic hydrogen fluoride gas, and fire extinguishing agent is released can also produce similar condensed with carbon dioxide, once the HF soluble in water mist generated by this time, will form on protected objects and human have severe corrosion of hydrofluoric acid (some industry commonly used for dissolving glass), and therefore restricted the scope of application;
　　
Smoke Grill NET: carbon dioxide, argon, nitrogen by a certain percentage of a mixture, fire-fighting mechanism and carbon dioxide are suffocating oxygen class physical fire extinguishing, fire-fighting slow is its unavoidable weaknesses, unable to adapt to the rapid fire extinguishing fire warehouse;
　　
Sol: currently there are some occasions, the use of lower cost, but according to its actual effect, the limited impact. Due to the need for large amounts of smoke by ignite materials fire smoke on protected space fills the entire submerged fire, device startup time long, slow fire, Sol containsMass of viscous material easy to attach to the protection of the surface to clear, device startup makes the scene within the visibility is reduced, is not conducive to quickly escape.
　　
Superfine powder extinguishing agent: this product completely from our self-development, with independent intellectual property rights of home-made efficient extinguishing agent, national torch plan project, national patent products, at present, only the Hubei Wuhan "green fire," a company specializing in the production, physical character represents a drying, easy flowing and has very good moisture-proof, anti-caking properties of solid powder; fire extinguishing agent average particle size of less than 5 microns, with its fire suppression mechanism of physical and chemical methods;
　　
Chemical way: through the fire and fuel response capture the oxygen combustion must heat and combustion of a large number of active factor to cut off the combustion chain.
　　
Physical way: by combustible surface cut Crystal protective film to oxygen, thus achieving a quick and effective flames.
　　
More broadly on logistics warehouse fire-fighting equipment requirements and related to the selection of the simple description, in the actual work of preventing, fighting and related staff in the unit you want to fire extinguishing agent for targeted selection, selected in line with the needs of this unit the actual use of the best products.