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China ’s land area is very broad, everyone has learned in the geographical knowledge of middle school, there is enough960 ten thousand square kilometers. On such a vast land, apart from the long coastline, the plains, there are still vast grasslands, hills and plateaus. These areas are not suitable for growing crops, because of the influence of geographical environmental factors, so agriculture and animal husbandry are very developed in these areas. There are a lot of pastures and pastures. With the rapid development of the social economy, these pastures have also kept pace with the times, and they have basically started to useFarming and animal husbandry fanTo maintain a good ventilation environment in the pasture, to maintain a good living environment for livestock, which is conducive to breeding. Then the fan is like a person, and it will always have such failures after using it for a long time. Let's talk about it for everyone. If the fan has vibration failure, how to check and deal with it.
Causes and measures of vibration of agricultural and animal husbandry fans
Fan rotor unbalance and inspection measures
The main reasons for the imbalance of the fan rotor are: The impeller is unevenly worn or corroded; there is uneven deposit or attachment on the surface of the impeller; there is a crack at the blade connection or the connection between the impeller and the hub, and the hub and the journal are loose. The data measured with a vibrometer shows that if the vibration value is larger in the radial direction and smaller in the axial direction or the vibration value increases as the speed increases, it is a characteristic of vibration caused by the rotor imbalance. The main preventive measures are:
1. According to the operating conditions of the fan, take dust removal measures in the process before the fan, to control the reduction of dust and other content entering the fan;
2. Periodically clean the impeller of agricultural and animal husbandry fans, and carefully check the impeller for cracks and the cooperation between the impeller and the main shaft. Generally speaking, the vibration caused by the unbalance of the rotor is caused by uneven deposits or attachments on the surface of the impeller. The impeller rotor that is difficult to clean can be cleaned by chemical methods. For example, in the sulfuric acid production, the impeller of the main fan of sulfur disulfide can be diluted with calcium hydroxide, and then the pressure impeller can be used to clean the impeller. The speed is good.
5 09, 2020
4 30, 2020