Precautions for installation of general ventilation ducts

Precautions for the installation of the ventilation duct: (1) When the duct is connected to the fan, a soft joint should be added at the air inlet and outlet, and the section size of the soft joint should be consistent with the air inlet and outlet of the fan. Generally, the hose connector can be made of canvas, artificial leather and other materials. The length of the hose should not be less than 200, and the tightness should be appropriate. The flexible hose can buffer the vibration of the fan. (2) Before connecting the air duct to the dust removal equipment, heating equipment, etc., the equipment should be prefabricated and installed according to the actual surveying and mapping drawings after the equipment is installed. (3) When the air duct is installed, the opening should be opened during the prefabrication of the air duct during the air inlet and outlet days. (4) When transporting condensed water or gas with high moisture content, the horizontal pipeline should be provided with a slope, and the drainage pipe should be connected at the low point. During installation, longitudinal joints should not appear at the bottom of the air duct, and the joints at the bottom should be sealed. (5) For steel plate air ducts that transport flammable and explosive gases, jumper wires should be installed at the air duct connection flanges and connected to the electrostatic grounding grid. The quality of the Jiutian brand series of fabric cloth ducts is only 1/300 of the composite ducts, without any reinforcement measures. The most commonly used materials weigh about 80-220 grams per square meter. The load on the ceiling or load-bearing wall is minimal, and the installation is extremely simple. The general engineering of the fabric cloth duct can even be installed independently by a single person. Because the fabric cloth duct is suspended by steel ropes, it has low requirements on the structure of the building. The fabric cloth duct is different from the traditional metal duct. The fabric cloth duct system is specially designed and manufactured for each project. Jiutian air distribution system fabric cloth duct can adopt a simple straight pipe system or a more complicated appearance. The accessories include arc elbows, T-shaped pipes, transition pipes or other connecting pipes. Jiutian series fiber cloth ducts are larger tubular fiber tubes, which are hung on fixed steel cables or rails with hooks and hung above the air-conditioning area. The cold/warm air static pressure generated by the high-power air-conditioning unit supports the air ducts to transmit the cold/warm air to the service area.

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