Combined Flow Closed Cooling Tower
Closed Cooling Tower is operated by circulating water or fluid, which is divided into two closed loops.
1. Circulation in the tower: the circulating water or fluid passes through the hot zone environment. After the water temperature rises, it enters the surface cooler in the tower, and the heat is sent to the environment outside the tower through the surface cooler and ventilation fan. The cooled circulating water or fluid is sent to the heat source by the water pump.
2. Circulation outside the tower: the spray water is sent to the spray system by the water tank through the water pipe. After spraying, the spray water first exchanges heat with the filler, so that the spray water can be cooled rapidly. At this time, the water contacts the surface of the surface cooler for heat exchange. Part of the hot steam is discharged through the ventilation fan, and the cooled spray water drops to the water tank for secondary circulation to form an external circulation for cooling.
Combined Flow Closed Cooling Tower,Bac Cooling Tower,Cooling Tower Systems,Chiller Tower Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhouarkfluid.com
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Full load of ammonium nitrate truck on the way to fire Sichuan Deyang fire rescue diesel generator successfully | diesel generator price / 2010-08-10
At 15:50 on the 9th, a large truck with a license plate in Ningxia was driving to the Chengdu-Mianyang high-speed road to Huangxu Town in Deyang, Sichuan Province. As a result, the car suddenly caught fire, causing more than 20 tons of ammonium nitrate (fertilizer) to be loaded on the vehicle. Burning, filled with smoke, danger of explosion at any time, highway traffic was interrupted. After defeating the fire officers and soldiers in Deyang, the danger was finally ruled out. The traffic that was blocked for more than two hours then gradually recovered.
Local 122, 119, etc., after receiving the alarm, quickly rushed to the scene disposal. The transportation department immediately blocked the Deyang toll station leading to Chengmo Expressway. The fire commanders immediately set a cordon, prohibiting unrelated personnel from entering the scene of the accident and organizing personnel to evacuate the surrounding people.
At 16:06, more than 20 Fire Fighting Squadrons and 3 fire engines belonging to the Fire Squadron in Deyang first arrived at the scene. After a simple observation of the burning materials and on-site conditions, the fire officers and soldiers immediately started fire fighting. At 16:11, Special Service Fire Squadron reinforcements arrived at the scene. Fire officers use water guns to control the fire and cool the mailboxes to avoid explosions.
At 16:50, the author rushed to the scene with the 119 command vehicle and the fire had been completely controlled. I saw a super-long Dongfeng heavy cargo (the license plate number is Ning E12238) that was filled with chemical fertilizers. It was burnt dark and scattered on the road. Blackened ammonium nitrate. A large number of people watched across the cordon, causing traffic jams and the scene was chaotic. According to the accident vehicle driver, when he reached this section of the road, a large amount of white smoke emitted from the tire, and then he ignited the fertilizer bag on the vehicle.
Huang Qiang, head of the defensive public security fire brigade of Deyang City, immediately deployed and directed the follow-up rescue work. The traffic department mobilized obstacle-removing vehicles to transfer the wagons. As of 17:00, the section of Chengdu-Mianyang Expressway Deyang has basically resumed access.
It is understood that ammonium nitrate is a strong oxidant. When combustibles catch fire, they can encourage the fire. It can explode when heated rapidly. The product of combustion is nitrogen oxides. Irritating to respiratory tract, eyes and skin. A large number of exposures can cause methemoglobinemia, affect the blood's ability to carry oxygen, cause purpura, headache, dizziness, collapse, and even death. (Finish)
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