What factors affect the wind speed of spiral duct fan
Pay attention to the section size of the air duct when making the air duct, because the section size will greatly affect the actual wind speed, along the way resistance and local resistance of each section of the air duct. The total resistance of the duct system is calculated from the unfavorable loop.
For the air duct with parallel pipe sections, the resistance in the duct shall be kept balanced. If it is unbalanced, it shall be adjusted by changing the size of the air duct and recalculate the wind speed. In view of the problem that some branch pipe systems are difficult to maintain balance, a regulating valve can be installed on the branch pipe to control the resistance.
The air duct connection must be tight; The flange gasket shall be made of elastic materials that do not produce dust and are not easy to aging. It is strictly prohibited to brush paint on the surface of the gasket; The flange gasket shall minimize joints, and the joints shall be in the form of steps or grooves. The air ducts and components cleaned, packaged and sealed shall not be removed before installation. If the installation stops, the port shall be sealed again.

Spiral duct fan is mainly used to produce spiral duct, so it also has corresponding operating procedures, mainly including:
(1) Operators shall work with certificates and corresponding qualifications, otherwise they cannot work.
(2) Before using the machine and equipment, first carry out necessary inspection, especially some parts that need attention, such as safety switch and emergency closing switch. Check whether there are problems, and deal with them in time if any.
(3) There shall be no inflammables and explosives around the equipment to prevent danger.
(4) The maintenance of the equipment shall be carried out in its power-off state.
(5) When the equipment is running, it shall not be unattended, and the operators shall not operate in violation of regulations