The application effect improves the starting performance of the fan and ensures the safety of the start. Due to the coupling, the motor can be started up with no load and the large moment of inertia load is gradually started. The motor and the pump wheel are connected. As long as the oil in the working chamber is emptied, the torque at the start of the motor is only used to accelerate the armature and the speed increasing gear and the pump wheel. The fan rotor can be stationary and the fan is eliminated. The large starting inertia of the rotor can quickly reach full speed start, and then gradually adjust the fullness of the oil in the working chamber to make the fan reach the working speed. The starting load is small, which can reduce the impact on the power grid, especially for the safety requirements of the power grid in the Bayi area. Smooth transmission, flexible adjustment, easy to meet the requirements of variable working conditions (1) good vibration isolation, smooth transmission using hydraulic coupling, between prime mover (motor and speed increasing gear and pump wheel) and working machine (fan and turbine) The torque is transmitted by the working oil, and there is no direct connection of the mechanical parts, so the vibration isolation function is avoided, and the vibration of the fan caused by the mutual transmission and superposition of the vibration of the prime mover and the working machine is avoided. In addition, through the speed adjustment, the working condition area of ​​the fan can be widened to reduce or avoid the surge of the fan, which provides guarantee for the stable operation of the equipment and ensures the safe and stable operation of the unit. (2) The adjustment is sensitive and easy to automate. The stepless speed regulation of the fluid coupling is realized by adjusting the position of the spoon tube. Each scoop tube position accurately corresponds to one rotation speed, and each rotation speed accurately corresponds to one air volume, so the adjustment is easier. The reaction is more sensitive, and it is easy to automate the operation. (3) It is easy to meet the blast furnace condition. Due to the limitation of the fan series, the blast furnace optional blower is usually larger than the blast furnace required air volume. Therefore, it should be adjusted to adapt to the susceptor, the material, the furnace change, the slow wind and the rest that often appear in the blast furnace. The different requirements imposed by the wind and other states on the air volume, such as the absence of a fluid coupling, must be adjusted by the intake air throttling and the outlet air release. In this way, on the one hand, it brings difficulty to the operation, which is not conducive to automation and remote operation. On the other hand, at constant speed, the air volume is too small, and it is easy for the fan to enter the surge zone, causing damage to the mechanical equipment, and the speed is passed. Adjustment, can widen the operating conditions of the fan operation, reduce or avoid the surge of the fan, provide protection for stable blast furnace conditions, and improve the environmental hazard caused by noise due to the reduction of the chance of exhaust. Energy-saving and consumption-reducing effects are obvious. Iron and steel enterprises are energy-intensive households. The iron-making process is a large energy-consuming household in the steel industry, and the power consumption of wind turbines accounts for 75% of the electricity consumption in the iron-making process. Therefore, the power-saving of wind turbines is of great significance. In the past, without the use of a coupling, the fan is adjusted by the inlet and outlet to meet the wind requirements of the blast furnace. Import regulation, which is equivalent to increasing the working condition and slowing down the wind, must be adjusted by the air to meet the blast furnace conditions, resulting in energy waste. After the hydraulic coupling is used, the fan has a wide speed range, and the air volume is adjusted through the stepless speed change. When the blast furnace is short-term or slow, the fan speed can be reduced to the adjustable speed range. At the lowest speed, the fan is basically running at no load. Except for a small part of the energy converted into the power and heat of the working fluid, there is almost no other energy loss, so the fan power consumption can be greatly saved.
Used In Heat Exchangers, Boiler Economizers, Coolers And Heaters.
It can made with different kinds of materials, such as cast iron, stainless steel, alloy steel,etc
Fin Economizer for Steam Boiler,Boiler Parts Tubes with Fin,Heat Exchanger Fin Tubes Jinan Yuanda Power Equipment Co.,Ltd. , https://www.jnyuandaboiler.com
Boiler Finned Tubes, Fin Tube & Finned Pipe