Magnetic flap level gaugeMagnetic flap level gauge is a kind of more commonly used liquid level meter detection instrument. Its key structure includes actors, socket flanges, control boards, floats, filter valves, etc., among which magnetic floats constitute magnetic flap fluids. The characteristics and conditions of the key components of the level gauge directly determine that the magnetic flap level gauge can not all work normally, but a few common failures occur in the magnetic flap level meter during the whole application process, and the general magnetic float cannot all normally float at the liquid level. The other is that the magnetic float cannot control the rotating column on the panel, causing all the magnetic couplings, resulting in
The control panel cannot display all normal information. This article analyzes the most likely causes involved in these two main situations to help customers quickly find the causes and solve the difficulties.Level gauge with magnetic floatAs a kind of magnetic flap type liquid level gauge with simple structure, intuitive observation data information and high measurement accuracy, it has been widely used in Chinese enterprises and the effect is also very good. However, for some maglev bodies with unique and precise measurement parts, due to Due to the particularity of its location, many defects have been found in use, which must be improved in a targeted manner.When the magnetic flap type liquid level gauge was processing sewage, it was found that the float ball could not float. The key reason was found during inspection: the float ball fell when the liquid level transmitter was processing sewage, and the pressure vessel head under the float ball was in contact with the bottom The rounded surface in the flange management center hole is inseparable, and there is a high working pressure in the behavior body, P inside> P outside, so that the floating ball on the lower flange can not float when pressed. The above situation is more likely to happen when there are oil stains in the behavioral body.The processing method is: pad an annular bracket with holes on the upper end of the lower flange. In this way, the floating ball falls on the support plate, which prevents the sewage treatment hole of the lower flange from being catered to. After the sewage treatment is completed, the floating ball floats with the rise of the liquid level. Practice has proved that this method is simple and feasible.This liquid level transmitter cannot accurately measure the liquid level within 10 cm of the bottom of the vessel, mainly due to the defects of its design scheme.Level gauge with magnetic float(1) The L1 specification is inappropriate. In the absence of liquid chlorine, the magnet in the maglev exceeds the scale, causing the OA section ruler to hook and turn.Only when the level gauge exceeds the aspect ratio of L3, the magneton will be adjusted higher, so this section of L3 produces a blind spot for accurate measurement. The improved method is to extend the L1 section to make L1≥L2 so that when the actor is free of liquid chlorine, the magnet of the float is located below the scale line of the hook, and it is not easy to start flipping. Moreover, L1 and L2 are below the hook, floating The floating point of the ball is located below the bottom of the hook. Therefore, the liquid level meter that can accurately measure the full height-to-width ratio of the hook does not have the L3 accurate measurement blind zone.The improved installation position relationship between the magnetic flap level gauge and the vessel, and the improved installation plan view between the level transmitter and the vessel.When the improved liquid level transmitter is installed, when there is no ruler and zero ruler line of the liquid level transmitter, the top of the float ball and the bottom of the vessel are located at the same design elevation, that is, the lower flange of the actuator The distance between the discs is equal to L. In this way, when the vessel has a liquid level timer, the floating ball will float and push the flap hook to rotate. What needs to be explained here is that when buying or manufacturing a float, you must ensure that the relative density of the float is the same as that of the accurately measured liquid.
Post time: 21-09-21