There are many problems with the use of tunnel jet fans. Tunnel jet fans have relatively low losses in operation, but may consume only two bearings. Why do tunnel jet fans need dynamic balancing tests?

     If one has the courage, great usage occurs at extremely low pressures. Due to external losses, this method is characterised by stiffness and deformation. In addition, the pressure may be heavily influenced by gas production and density variations. The operating lines of pressure and flow of the unit should be curved without going around the plane.

      The quantitative use of tunnel jet fans accounts for 30-40% of the total wind power generation. It is therefore important to test the dynamic balance of tunnel jet turbines in order to enhance the protection and conservation of the turbines online. In particular, the main losses of the turbine wheels and the spindle position of the turbine are not bad, and the wave amplitude of all turbines has increased, reflecting abnormal operational consumption of the turbine.

       The use of complex mapping methods to determine the optical position of the wheels in the long-term protection tasks of the fan can reduce the position of the force points and eliminate the balance of the fan. Skew in ventilation equipment and effective measures are taken to eliminate discontinuities.

        Noise reduction methods for tunnel jet fans

       Tunnel jet fan noise and high decibels, seriously affect the rest of the boiler. In this paper, from the control and control of tunnel jet fan noise, to explore the danger of tunnel jet fan noise and noise reduction of comprehensive management techniques.

      At present, due to industrial production and heating needs, many enterprises widely use boilers. However, there is an urgent need to address this issue as tunnel jet fan noise affects the function, life and health of the surrounding residents. Noise

       Environmental noise pollution

       The main effects of noise on the human body are disturbance of normal life, rest and reduction of surgical efficiency, hearing damage and noise formation, stimulation of the cerebral cortex and balance disorders. Risks associated with cerebrovascular function and neurodegeneration.

      Noise reduction countermeasures: integrated fan noise reduction and energy saving

     Tunnel jet fans and fans generally have a noise level of around 90db and combustion gas delivery temperatures of up to 180°C. The use of sealed insulators may lead to heat waves, high engine temperatures and even damage to the engine. Engine page: 1 This method combines noise reduction and fan energy saving.

     In practice, the tunnel jet fan energy saving and noise reduction comprehensive management programme is: the treatment device remains unchanged, the fan and the fan are separated from the main engine through the ventilation ducts connected to the speaker. Air inlets are installed on the roof or room walls and mufflers are installed to feed air into the room. The furnace chamber is well laid out, and during the operation of the tunnel jet fan, the fan is set near the boiler side, the inlet is against the wind, the engine is in the middle of the ventilation atmosphere, and a large amount of fresh air automatically enters the insulation room due to the negative pressure generated by the fan in the insulation room isolation chamber