The kitchen negative pressure flue can effectively solve the problems of gas vortex, gas curtain blockage, flue gas backflow and smoke smell, meet the needs of residential construction, and has the functions of preventing flue gas backflow and fire prevention. Reach the leading technical level of similar products in China.
Negative pressure flue is listed as the 20 12 national promotion project of scientific and technological achievements in construction industry. After the ventilation flue is installed on the roof, the backflow prevention covers required by different series of products should be installed according to the design requirements.
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Matters needing attention in kitchen negative pressure flue:
Due to the high temperature of the fire, the comprehensive performance of the tunnel structure system is seriously reduced, which will inevitably lead to the serious reduction of the bearing capacity and high-temperature safety performance of the flue structure system, and the working state of the system will also change. Although there have been many successful applications of foreign tunnels, there are still many risk factors.
(1) Before installation, the ventilation flue must be checked to see whether the number of floors meets the requirements; Check whether the reserved holes on each floor are vertically aligned up and down, otherwise, they should be installed after meeting the requirements.
(2) The installation of ventilation flue shall be carried out before the main structure and ground paving, wall and ceiling painting. When installing, it should be installed layer by layer from bottom to top, and be careful not to drop sundries into the ventilation flue.
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