Working principle of FBD explosion-proof pressure type local ventilation fan

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　　FBDMining explosion-proof press in typeWorking principle of counter rotating axial flow mine local ventilation fan

　　FBDMining explosion-proof press in typeWorking principle of counter rotating axial flow mine local ventilation fan:The FBD series fan consists of two sets of working motors, with two-stage impellers rotating relative to each other. The first stage impeller rotates clockwise, while the second stage impeller rotates counterclockwise. Air enters the first stage impeller through the collector to obtain energy and directly enters the second stage impeller. After being pressurized, it is sent out. The role of the secondary impeller is not only to increase the energy of the airflow, but also to have the function of static guide vanes in other types of axial flow ventilation. While obtaining the velocity component in the circumferential direction of the guide, it not only streamlines the energy of the airflow, but also reduces noise.FBDMining explosion-proof press in typeThe working principle of the counter rotating axial flow mining local ventilation fan is actually not much different from that of the FBCD mining explosion-proof extraction counter rotating axial flow local ventilation fan. One is to press in and the other is to extract. The working principle is quite similar. The similarities are both for ventilation purposes and dual motors. The term 'counter rotating axial flow' mentioned here means that two motors drive the impeller to rotate, and the two impellers rotate in opposite directions.

　　FBDMining explosion-proof press in typeAfter understanding the working principle of the local ventilation fan for counter rotating axial flow mining, we will now proceed toFBDMining explosion-proof press in typeTrial operation and testing of local ventilation fans for rotary axial flow miningFBDMining explosion-proof press in typeCheck if the working condition of the local ventilation fan for the counter rotating axial flow mine is good. After the fan has been tested and found to be in good condition without any abnormalities, it can be started and put into formal operation. During the start-up and operation of the fan, no one is allowed to stand at the diffuser outlet. If any of the following situations are found during the operation of the fan, it should be stopped urgently for inspection and the cause should be identified and repaired before use.

　　FBDMining explosion-proof press in typeProblems and solutions of local ventilation fans for counter rotating axial flow mining

　　(1) Sudden and severe vibration of the fan or motor; The possible cause of the malfunction may be the detachment of the fan impeller counterweight, resulting in an imbalance of the impeller and requiring re balancing;

　　(2) The temperature or current of the motor suddenly rises and exceeds the rated value. The possible cause of the malfunction may be an increase in motor load, which requires on-site inspection and analysis of the cause;

　　The above situations require on-site inspection by repair personnel, analysis of the cause, and taking measures. Non personnel are not allowed to move without permission. You can also contact Mr. Cui from the manufacturer.

　　FBDexplosion-proofPress in typeThe counter rotating axial flow local ventilation fan is a new generation of energy-saving local ventilation fan developed and produced by Tai'an Yufeng Fan Manufacturing Co., Ltd. based on the summary of the existing structure and technical performance of counter rotating axial flow local fans in China.

　　FBDCompression type explosion-proof counter rotating fan for miningIt has the characteristics of reasonable structure, complete specifications, high efficiency, obvious energy-saving effect, low noise, and long air supply distance. According to different ventilation resistance requirements, it can be used as a whole machine or in stages, thereby reducing ventilation power consumption and saving energy. Within a tunnel length of 2000m, the fan can supply air normally without moving, reducing the labor intensity of workers and saving ventilation time. It is an ideal equipment for local ventilation in coal mines. At the same time, it can also be used in high-pressure ventilation applications such as metallurgy, gold, chemical, shipbuilding, and ceramic industries. Its structural features include mining explosion-proof type, counter rotating, noise reducing, and axial flow type.

　　We will rely on advanced technology and a diligent and persistent spirit of innovation to sincerely cooperate with our customers with our products, discounted prices, and satisfactory services.Press in miningExplosion proof rotary ventilation fanIt can also be used in coal mines, this kind ofPress in miningExplosion proof rotary ventilation fanAll of them have a certain strong explosion-proof effect, so you have no worries.

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