【 Weak current College 】 Superfine dry powder fire extinguishing device applied to tobacco warehouse---Power By 【 China power house network 】

I. preface
　　
China is a big tobacco, tobacco and cigarettes output ranking first in the world. The tobacco industry is an important part of our national economy, enter since the 1990s, China's tobacco industry turn each year accounted for the share of State revenues, the number of consecutive year at 10%. As the people's livelihood industry, tobacco industry in the "11th five-year plan" period to face further accelerate the development of strategic opportunities that will have a bright future of rapid development. In this excellent development opportunities and prospects, improve the fire-fighting the tobacco industry to ensure internal stability and security is very important and necessary. This article focuses on the tobacco warehouse in fire prevention and fire-fighting equipment selection as a preliminary study.
　　
No doubt, and tobacco industry, the rapid development of production and management in tobacco warehouse fire, fire-fighting equipment, fire-fighting organization, management, staff, supervision and inspection, there is a serious delay problems. To do this, you must increase the intensity of the fire safety of construction, particularly tobacco warehouse fire-building efforts, in order to ensure that the tobacco industry's fire safety foolproof, achieve sustained and healthy development.
　　
Second, tobacco warehouse common fire hazard analysis:
　　
1. chemical constituents of tobacco itself hidden fire hazard
　　
Tobacco burning can occur with combustion and occurrence of smoldering. Smoldering is only in combustion gas-solid interface Department, no flame or fire close to combustible surfaces in the form of a combustion, the combustion of flammable substances into hot state, also known as flameless combustion or burning-hot surface. Tobacco occurs spontaneous combustion conditions: the first is itself its own heating; the second is to produce heat is greater than the loss of heat; 3 temperature rise to spontaneous combustion. Tobacco is the chemical reaction of spontaneous combustion, oxidation and decomposition of the results of the comprehensive role, above all due to parasitic microorganism reproduction and ferment of exothermic chemical reaction that occurs, the resulting heat accumulation, temperature, when the temperature rises to 70-80 degrees centigrade, microbial death, biochemical reaction to abort, but allows tobacco generates an unstable build structures, the generation of heat by exothermic oxidation reaction, when reached point of spontaneous combustion of tobacco, tobacco free combustion occurs.
　　
2, electrical equipment, cables, lines of fire hazards
　　
(1) and drying box, blower, electrical equipment of high-temperature operation for a long time, causing tobacco roasting, resulting in severe burns.
　　
(2) cable line power overload, counterfeit or substandard cables are also extremely inflammable cause a fire.
　　
(3) security awareness Dim, in the process of using electricity, no hand management, lack of safety consciousness.
　　
(4) in order to facilitate the use of night work, temporary, casual temporary lap circuit, such as power supply circuit connection does not hold out the spark, the use of high-power lighting and fire hazards.
　　
3. people-manufacture of ignition of the fire hazard
　　
(1) in the stacked tobacco warehouse surrounding the use of fire. Such as cooking, boil water, etc.
　　
(2) in the stacking of tobacco warehouse in the illegal use of fire. If the outage with candle lighting, smoke, etc.
　　
(3) daily fumigation due to fire hazard. Tobacco fumigation is the use of chemical agents inhibit tobacco itself and microbial life, insects, thus preventing tobacco moldy and suffered the pest of fever. Fumigation of most commonly used chemicals are flammable, such as hydrogen. Improper use can cause fumigation agents of the burning heat, and thus cause a fire.
　　
(4) the construction of the warehouse, warehouse delayed development of fire protection district-area, tobacco-area, high stack, stack spacing and beams, columns, walls and other safe distance, stacking up excess stocks such as fire channel.
　　
4. fire-fighting equipment is missing or outdated due to fire hazard
　　
Many tobacco warehouse on equipped with fire-fighting equipment valued enough, did not follow the requirements set enough fire extinguishers or install fire alarm system, automatic fire suppression equipment. In many tobacco warehouse fire extinguishing equipment configuration in General is too large, sophisticated high-tech fire-fighting equipment, and existing storage size and storage value does not conform to the "security" to keep up with the daily management mainly rely on the "civil defense", it is difficult to do well in the fire safety work. It is understood that in the smaller, the relatively low level of production of tobacco factory, the problem more pronounced.
　　
3. tobacco warehouse fire in several major challenges:
　　
1, finished cigarette and tobacco accessories warehouse memory on large quantities of flammable substances. Warehouse stacker year-round non-stop operation, in the event of fire, due to the particularities of stocks, not fighting the loss is huge.
　　
2. tobacco as value of expensive fed water substances, high requirements to the fire extinguishing agent.
　　
At present, domestic and international use of fire-fighting equipment are one of the following categories: water series, foam, dry chemical, gas (including obsolete halon) carbon dioxide, heptafluoropropane, more types of fire extinguishing equipment setups for different sites.
　　
Clean water is the most effective means of fighting, pollution-free, low cost, but many fed water substances and premises such as tobacco, paper, printing, medicine and so will not apply. If the water used to extinguish the fire, water damage or even larger than fire losses. Therefore, it is widely used in water sprinkler and fire extinguishing system is not suitable for the tobacco industry.
　　
In tobacco library, gas fire extinguishing system also does not apply. Tobacco warehouse space, various technical holes are more difficult to form when the fire. As with all submerged gas fire extinguishing, require enormous gas storage volumeEquipment, the large investment and running costs are high, and there is a certain danger.
　　
3. tobacco warehouse due to storage of semi-finished and finished products for air flue, reservoir contains certain corrosive gases, such as Aluminium phosphide fumigation after phosphating with small amounts of hydrogen etc, for installation in the Gallery of the facilities of a corrosion protection requirements.
　　
Fourth, ultra-fine powder extinguishing device on tobacco warehouse fire for applicability
　　
Mentioned earlier, because of the particularity of tobacco substances, asked us to equip fire equipment to have very definite can really play a role in fire control. From the fire extinguishing agent, suitable for powder extinguishing agent; from fire extinguishing efficiency perspective, to start with the fastest reaction of automatic fire extinguishing equipment is appropriate; corrosion from anti-virus, take the Green environmental protection product.
　　
Powder extinguishing agent and water, foam, carbon dioxide fire extinguishing efficiency compared to the fire area, an equivalent units fire costs three aspects are far better than the latter. Benefits include: the fire rate, making process is not complicated, using a wide range of temperatures, no special requirements on the environment, easy to use, no need for external power and water sources. At the same time, it also has a non-toxic, non-pollution, security, etc. Can be said to be the most appropriate tobacco warehouse fire extinguishing fire protection products.
　　
At present, the extinguishing of fire suppression equipment, there are many, but really on tobacco warehouse fire functioning. And Wuhan green fire equipment co., Ltd. successfully developed "Sea Dragon" card of ultra-fine powder extinguishing agent and automatic fire sprinklers for fire-fighting the tobacco warehouse is cutting-edge technology, a new breakthrough, quality of flying.
　　
Wuhan green fire developed ultra-fine powder and automatic fire-fighting equipment, and other powder extinguishing agent and fire suppression equipment in comparison with the following key benefits:
　　
1, superior fire suppression effectiveness.
"Sea Dragon" card of ultra-fine powder of efficient extinguishing agent identification by the Ministry of the door, is the domestic origination and obtained the national patent and is now in the world, its fire extinguishing concentration 64.4g/m3, is at home and abroad have invented fire extinguishing agent, fire extinguishing concentration of minimum, maximum efficiency, fire extinguishing the fastest one. Unit volume extinguishing efficiency is halon fire extinguishing agent for 2-3 times that of ordinary powder extinguishing agent for 6-10 times, is heptafluoro more than 10 times, 15 times that of carbon dioxide, its price is not comparable to other fire fighting products.
At present, there is also a claim to be super fine powder, but are normal ABC powder fine filtered, as part of the ultrafine powder extinguishing agent average particle size is 10 ~ 20 μ m, and various other properties and ABC powder are the same, is not a real sense of ultra-fine powder, its fire extinguishing efficiency can not be the Wuhan green fire equipment co., Ltd. has developed the ultra fine powder.
　　
2, high dispersion, high insulation and environmental performance. Tobacco regardless of semi-finished products in warehouse or finished products warehouse in select fire facilities must take into account the particularities of its: spontaneous combustion, humidity, stacking, drying, insects, etc., not because the fire caused damage to a second time. Superfine powder extinguishing agent is green fire equipment co., Ltd. is a patented product, its composition is different from ordinary ammonium salts powder extinguishing agent, in addition to a flame combustion of strong inhibitory effect, on the surface burning strong suffocation, on thermal radiation of masking and cooling effect, compared with other fire extinguishing agent, also has the advantage of the natural moisture-proof, without silicone fluid inclusions, and because its ultra-fine (diameter ≤ 5 μ m), and fire exposure of specific surface area, with excellent dispersion, high insulation and environmental performance, cannot be a seconds will fire, and easy to clean, will not give tobacco brings second damage. At the same time, its high insulation performance effectively suppresses electrical fire, thereby ensuring that tobacco warehouse fire safety.
　　
3. start the flexible, responsive, convenient installation. Tobacco warehouse fire also must take into account the characteristics of its stack code, as well as the area within the air contains certain corrosive gases. Selecting unattended automated fire suppression equipment is expecially necessary.
　　
Wuhan green fire equipment co., Ltd. to develop and produce ultra-fine powder automatic fire suppression equipment meeting the above requirements:
　　
First, three startup, flexible, secure, and reliable.
　　
(1) temperature control startup: when the temperature rose to set value, the fire extinguishing plant valve automatically open, releasing ultra-fine powder extinguishing agent fire suppression.
　　
(2) start: in particular of superconductivity, require fast fire and many more serial starts, its superconducting induction line rapid fire signal can be delivered to the device, the device quickly responded by releasing ultra-fine powder efficient extinguishing agent, will completely remove fire hazard.
　　
(3) start: Superfine powder electronic high fire-extinguishing equipment for electronic control devices can join with all fire controllers, and a signal feedback function, through the smoke and heat detector found fire signal issued by fire controllers, fire extinguishing device startup instructions received signal automatically open after the release of extinguishing.
　　
Either way, it is possible to start rapidly at first time put out the fire, it is a good way to avoid tobacco inventory of corrosive gases on staff.
　　
Second, the hanging of ultra-fine powder extinguishing device, no network installation mode, low volume, without through-wall punch, install a large number of pipelines and auxiliary facilities, just hanging in protected from above (cupboard wall mounted), fire extinguishing system equipment is not affected by the size of the volume space. This can achieve total annihilation of ultra-fine powder fire (fire extinguishing system in inhibiting foreign wind speed is not greater than 2m/s, can properly perform its fire extinguishing efficiency, but also because of its small size, light weight, good fluidity, be in the airSuspended for some time, but also with more heat resistance, it can be all drown the fire, this is the only way to achieve the kind of gas of all submerged fire extinguishing agent), nor can the key regional and even local implementation of key items of individual protection, especially for tobacco storehouse of layered, divisions stack.
　　
Cargo layered, divisions stack, hanging fire suppression equipment can also be layered, partition installation. This will not affect the normal operation of the tobacco warehouse, but also can effectively play the role of the fire, enabling tobacco warehouse most appropriate fire protection.