Tube-11 is the first made-in-China Vibrating Rod Level Switch that designed with double vibration tubes, the ideal rod design ensures a reliable function in solid applications with the lowest measurable density of 0.02g/cm3. Typical applications include granules and coarse-grained bulk solids, such as PVC, sodium hydroxide, lime, cement, sand, soil, coal, dust, flour, sugar, salt, grain, bean, etc.
The probe of Tube-11 Vibrating Rod Level Switch is designed with double vibration tubes, the inner vibration tube nests with the outer vibration tube. By activating both the inner and outer vibration tubes to work at the same resonance frequency, this makes the switch has high reliability and high detection sensitivity with the lowest measurable density of 0.02g/cm3.
Tube-11 uses piezoelectric devices to achieve vibration drive and detection, resulting in resonance of both inner and outer vibration tubes at completely consistent resonance frequency. When the vibrating rod contacts with measured material, the resonant frequency of outer vibration tube will change, thereby destroying the resonance conditions of both the inner and outer vibration tubes makes the vibration amplitude of the probe will be obviously deceased, which also decreases the amplitude of output signal from the piezoelectric detection device. This reduction is detected by the integrate electronics module and converted into an output switching signal.
● Semi-dry desulfurizing reaction in silo at coal power plant (with mixture of CaSO4 and CaSO3).
● Strong anti-hanging and non-adhesive functions are benefited from double rods design, which also well solves the adhesion problem of mixture of CaSO4and CaSO3.
● Due to the instability of dielectric constant caused by the humidity changing of mixture CaSO3 and CaSO4, so RF Admittance Level Switch cannot be reliably applied to such working condition, but Vibrating Level Switch is unaffected by dielectric constant and it is an ideal instrument for highly reliable measurement.
● Well used at dust bin desulfurization and silo in regeneration tower at power plant, in which the temperature of active coke is up to 180 ℃, as Tube-11’s highest process temperature is 250 ℃.
● Widely used in Combustion silos of combustion system at power plant, in which the density of sawdust and straw is only at 0.1g /cm3. Due to the low density, it is difficult to measure the level for most general level switches. However, Tube-11 is with the lowest measurable density of 0.02 g/cm3, so Tube-11 is a perfect choice on for this occasion.
● Used in dust collection bag and the ash bucket and bin pump of ash transport system at power plant. Tube-11 is with only 150mm of probe length, significantly reduces the contact area with material impact, and minimizes the probe’s damage caused by material falling.
● Used in coal ash collecting device (fly ash silo).
● The measurement in sintering ash silos at smelter plant.
● Used in PVC granule storage silos, and packaging line silo monitoring at chemical plant.
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