Today I will introduce to you: the standards and specifications that need to be paid attention to when using fire exhaust ducts

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The fire exhaust duct is a part of the fire fighting system inside the building, and its main function is to remove the smoke and harmful gases in the event of a fire to ensure the safety of personnel and property. The use of fire exhaust duct not only needs to consider its performance and material selection, but also needs to be designed, constructed and accepted in accordance with the corresponding standards and specifications.

First of all, the design of the fire exhaust duct needs to meet the relevant national standards and specifications. The national standard "Building Fire Design Code" GB 50016 stipulates in article 8.2.2: "Indoor smoke exhaust channels, garbage channels and drainage Wells in the fire protection zone shall be provided with a tunnel through the floor or fire separation, and indoor smoke exhaust channels shall be connected to outdoor air or through the smoke exhaust tower ventilation system to achieve the purpose of smoke exhaust. The smoke outlet shall be located on the exterior wall or roof of the building and shall not be inside a vertical passage or facing an interior space." This regulation makes clear the main points of the design of the fire exhaust duct, that is, it is necessary to design a smoke exhaust tunnel that meets the requirements of the fire protection zone, and set the smoke exhaust outlet in the outdoor to avoid pollution and danger to the indoor space.

Secondly, the fire exhaust duct needs to consider its fire performance and durability when selecting materials. The "Building Fire Code" GB 50045 stipulates the material selection of fire exhaust duct: "The fire exhaust system shall use non-combustible materials or materials with fire rating not lower than the fire rating of the building; The shell of the smoke exhaust pipe should be durable and there should be no defects such as water leakage." This regulation clarifies the needs of fire exhaust duct materials, selects non-combustible materials or materials with the same fire rating, and ensures durability to avoid affecting its use effect due to shell damage or water leakage.

Moreover, the use of fire exhaust ducts in construction and acceptance also needs to be strictly in accordance with the corresponding specifications. "Building Fire Acceptance Code" GB 50160 specifies the acceptance of the fire smoke exhaust system in detail, in which the acceptance requirements of the fire smoke exhaust duct are clearly stipulated in article 6.5.3, and the process quality, material fire performance, seismic grade, connectivity, information identification and other aspects of the duct should be checked during acceptance to ensure that the requirements of the national standard are met.

After that, the use of fire exhaust duct also needs to pay attention to its maintenance and management. "Building Fire Protection Facilities Maintenance Regulations" GB 50257 on the fire smoke exhaust duct maintenance and management requirements, should be made in accordance with the maintenance plan to carry out regular inspection, timely clean up dust and check the air duct connection, to ensure the fire smoke exhaust system and the normal work of the duct.

To sum up, the use of fire exhaust ducts needs to follow the relevant national standards and specifications, including design, material selection, construction and acceptance, maintenance and management. Only when these standards and norms are fully understood and strictly implemented, can the normal operation of the fire smoke exhaust system and air duct be ensured, and its important role in fire accidents be played to protect the safety of people's lives and property.