The amount of air leakage of spiral duct for air leakage test, according to regulations, the Shandong spiral wind pipe leakage detection by leak legal and air leakage testing quantitative detection method combining tightness test method is suitable for light medium and low pressure system; full detection of air leakage testing is suitable for medium voltage sampling system and the high pressure system.
1, spiral duct manufacture, installation and connection with parts, tight connection, no air leakage, so as not to produce air leakage noise.
2. In order to prevent the vibration of the spiral pipe in Shandong, a fixed support is arranged at the turning point of each system, the spiral pipe of Shandong, and the connection of the ventilator and the air inlet.
3, fan installation, according to design requirements or construction specifications set damping device.
4。 The fan and Shandong spiral pipe are connected with a hose, and the flexible pipe at the inlet of the fan shall be installed with proper tightness so as to avoid noise and vibration due to soft taking in and reducing the area of the inlet and outlet。
Project of ventilation system in buildings is actually in the actual construction, some layout added ventilation pipe, the air inside the building effective flow, closer to the natural wind, so that the whole building with natural ventilation and ventilation function。
But in the design and construction of the ventilation system, it should be noted that the quality of the ventilation pipe will directly affect the ventilation and ventilation function of the whole building.
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