Method, device and system for identifying cavity capacity through vibration measurement

Abstract

The invention discloses a method, device and system for identifying cavity capacity through vibration measurement, and the method comprises the following steps: obtaining the vibration data of a cavity body in real time, and obtaining a first corresponding relation through a Fourier transform method in combination with the vibration data, the first corresponding relation being the corresponding relation between the vibration amplitude and the vibration frequency of the cavity body; acquiring a plurality of vibration frequencies corresponding to a plurality of wave crests of which the vibration amplitudes exceed a preset vibration amplitude in the first corresponding relation, and recording the vibration frequencies as characteristic frequencies; according to the change relation of the multiple characteristic frequencies along with time, the inherent characteristic frequency of the cavity body is obtained; and according to the inherent characteristic frequency and / or the vibration amplitude corresponding to the inherent characteristic frequency, whether an early warning prompt is sent out is judged. On the basis that original structures of a barrel, a tank, an air chamber and the like in industrial equipment are not affected, whether the barrel, the tank and the air chamber are internally blocked or not is recognized, and therefore workers are warned in time when the barrel, the tank and the air chamber are internally blocked.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of chamber body capacity identification, and in particular, to a method, device and system for identifying chamber capacity through vibration measurement. Background technique [0002] For the storage and transportation of fuel, ore, and raw materials for large-scale industrial equipment, tanks, tanks, and air chambers are required for transshipment and temporary storage. Because the fuel, ore, and raw materials are affected by humidity and particle size, it is easy to In the chamber body such as the cylinder body and the tank body, the quality is bonded and accumulated, resulting in poor circulation and blockage. [0003] For equipment chambers such as raw coal bunkers in thermal power plants and air chambers in waste incineration power plants, they are easily affected by coal materials bonded to coal bunkers or waste slag bonded air chambers during the process of coal falling and grat...

AI Technical Summary

Problems solved by technology

[0002] For the storage and transportation of fuel, ore, and raw materials for large-scale industrial equipment, tanks, tanks, and air chambers are required for transshipment and temporary storage. Because the fuel, ore, and raw materials are affected by humidity and particle size, it is easy to In the body of the cylinder, tank and other chambers, there is a cohesive accumulation of quality, resulting in poor circulation and blockage.

[0003] For equipment chambers such as raw coal bunkers in thermal power plants and air chambers in waste incineration power plants, they are easily affected by coal materials bonded to coal bunkers or waste slag bonded air chambers during the process of coal falling and grate furnace waste incineration. When the situation arises, when the contents of the chamber stick to the inner wall of the chamber, the chamber will experience poor circulation of the internal material, and finally cause the chambers such as cylinders and tanks to become clogged and lose their original transshipment function, even when these bonds are under the action of some external vibration or other factors, the internal stress of the bond will be reduced or disappeared and will form an instant collapse. This kind of instantaneous impact can easily lead to the failure of the tail equipment, failure and other stalling phenomena, thus causing more harm

[0004] In the past, some material level gauges installed in the internal chamber were used to continuously monitor the material level for this situation. However, for raw coal bunkers, waste incineration plant furnace exhaust chambers, etc., the influence of dust, high temperature and other harsh environments As a result, compact electronic components such as level gauges may be damaged, fail, or other situations that cannot guarantee the measurement effect, and ultimately the internal bonding failure of the chamber body caused by measurement failure cannot be avoided.

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