Fire water tank
Fire fighting water tank is the fire fighting and rescue activities for the fire brigade to provide water for fire protection facilities, according to the use of the cycle is divided into two types of fire fighting water tanks and non circulating tank. With good water quality, clean and pollution-free, high strength, light weight, etc.. On the one hand, so that the fire water supply pipe full of water, saving the fire pump to open the pipeline filled with time, in order to fight the fire won the time. On the other hand, the roof of the pressurization, pressure regulating system and water tank to ensure that the fire hydrant filled the water column, the fight against the success or failure of the initial fire decisive role.
Classification of fire tank:
According to the use of different types of fire water tank: fire water tank is divided into two types of circulating water tanks and non circulating fire water tank. Cycle of fire water tank is connected with the usual city tap water pipe network, the water in the water tank in the circulating state, when the earthquake happened, and can automatically cut off the tap water pipe network, to ensure that the tank is full of clean water. In addition to providing fire fighting water source for the fire brigade, the utility model is mainly used for providing clean drinking water for the public when the large scale disasters such as the earthquake and the urban water supply pipe network are paralyzed. The circulating water tank is mainly located in the place where the citizens take refuge in the earthquake disaster such as schools, parks, hospitals and so on. Non circulating water tank and the water pipe network is not connected, the water can not drink. Its role is mainly in the fire hydrant can not be used to provide fire fighting water source.
Fire tank material selection:
At present, there are many kinds of materials which are suitable for water tanks. The most common materials are steel plate, stainless steel, reinforced concrete, glass fiber reinforced plastic, enamelled steel plate and so on, but each has its own advantages and disadvantages.
Carbon steel plate welded into the water tank, the inner surface of the anti-corrosion treatment should be carried out, and anti-corrosion materials shall not hinder the health requirements.
Reinforced concrete on-site pouring water tank, large weight, long construction period, easy to water leakage and piping, easy to wash off the surface material.
The water quality of the enameled steel water tank is not polluted, the corrosion of the steel plate can be prevented, the installation is convenient and rapid, and the utility model is not limited by the progress of the civil work. The utility model has the advantages of reasonable structure, firmness, beautiful appearance, no deformation, no water leakage and wide applicability.
The glass fiber reinforced plastic water tank is not limited by the space of the building, has the advantages of strong adaptability, light weight, no corrosion, no leakage, beautiful appearance, long service life, good thermal insulation performance, safety and reliability, convenient installation, simple cleaning and maintenance.
Stainless steel water tank is strong, does not pollute the water quality, corrosion resistance, no leakage, easy to clean, light weight, do not breed algae, easy to heat preservation, beautiful, easy to build, but the price is high.
Fire tank volume calculation:
The fire fighting water tank is used for storing and extinguishing the initial fire water:
"Provisions of article 8.6.3" code for fire protection design of buildings: indoor fire water tank (including water tank water supply system partition partition) should be stored in 10min when the indoor fire water, fire water does not exceed 25L/s, the calculation of more than 12m3 water storage tank fire, still using 12m3; when the indoor fire water more than 25L/s, the calculation of more than 18m3 tank fire water storage, can still be used for 18m3.
"Provisions of article 7.4.7.1" code for fire protection design of high-rise buildings, fire water fire water tank, a class of public buildings should not be less than 18m3; two kinds of public buildings and a residential building should not be less than 12m3; two residential buildings should not be less than 6.00m3.
Section 7.4.7.3 provides that the parallel water supply mode of the district fire tank capacity and the same high fire tank.
In addition, with the use of other fire water tank volume, in addition to meet their own fire water reserves, but also to meet other water reserves.
Other requirements for fire fighting water tanks:
Fire fighting water combined with other water tanks, fire water should not be used for technical measures.
After the fire, the fire water supply by the fire pump, should not enter the fire tank, should be installed in the fire water tank outlet valve.
Fire fighting water tank should be used for life, production water supply pipe filling.
Fire water tank in the high-rise buildings should be adopted in two, in a water tank maintenance, can save the fire emergency water necessary, and should be used in contact with the bottom of the water tank pipe connection, connection pipe is arranged on the valve, the valve is in a normally open state.
Fire fighting water tank should be combined with other water tanks, so that the water in the tank is often in a state of flow updates to a qualitative change in bad water, other water can be used for the top of the nozzle hole drilling measures.
Fire water tank accessories configuration and fire tank installation, layout can refer to the general water tank.
Fire precautions:
In the process of cleaning fire water tank, disinfection personnel must take protective glasses, masks, such as in the water tank to feel unwell, resulting in dizziness, eye ache, nausea, gas tight, leaving the pool immediately flush eyes with water, breathe the fresh air can be restored. In addition to clear debris and pool, first out of mud and sand and various sediment pool with shovels, and then with a broom or nylon brush from the top glass steel fire water tank walls, glass steel, fire water tank bottom order, followed by repeated washing. Brushing finished with a high-pressure water gun rinse again, discharge of sewage.
Fire tank features:
1, the use of food grade resin, so the water quality is good, clean and pollution-free;
2, with high strength, light weight;
3, corrosion resistance, beautiful appearance, long service life, easy maintenance and management, etc..
Fire water tank:
A. glass fiber reinforced plastics