The composition of rounding turbine bimetallic thermometer

Turbine bimetallic thermometer generally consists of turbine transducer and display instrument, also can make one-piece turbine bimetallic thermometer, the transmitter structure mainly includes casing, diverter, shaft and bearing components, turbines and magnetoelectric transducer. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

turbine lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the turbine is the core of the bimetallic thermometer measuring element, its role is to put the fluid kinetic energy is converted into mechanical energy, small turbine by friction shaft bearing and bearing components, coaxial and shell, the leaf number depending on the diameter size, usually 2 - 8 pieces. Turbine dynamic balance is very important, a direct impact on the performance of instrument and service life, in order to improve the responsiveness of velocity change, the quality of the turbine to be as small as possible. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

diverter lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the diverter is composed of guide plate and guide, there are two function: lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( l) Is used to guide the straight flow body, lest by fluid vortex change fluid and the effect of turbine blade Angle, so as to ensure the accuracy of the bimetallic thermometer. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 2) On the diverter equipped with bearings to support the turbine. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

the shaft and bearing assembly lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

transmitter failure is usually caused by shaft and bearing components, so it determines the reliability and service life of the turbine bimetallic thermometer, the structure design, material selection, and regular maintenance is very important. Should be considered in the design of axial thrust balance, fluid force acting on the turbine makes the turbine rotation, but also to the turbine a axial thrust, the bearing friction torque increased. In order to offset the axial thrust, on the structure of axial thrust balance measures, mainly include: lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( l) Reverse thrust method was adopted to realize axial thrust automatic compensation. Can be seen from the geometric shape of turbine shaft, and when the fluid flows through the area, the velocity are big and static pressure drops, later expand of the area gradually as the flow and static pressure rise gradually, thus in the contraction section is formed between the static pressure field, and the corresponding force on the turbine. Due to the force along the turbine shaft to the component, with the axial thrust reverse fluid, fluid axial thrust can offset, decrease the bearing axial load, and improve the life of the transducer and accuracy. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 2) Adopt the method of center shaft drilling, by fluid axial force automatically compensate lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

in addition, reduce the bearing wear is to improve the measurement accuracy, extend the life of the instrument's important link. At present commonly used bearings are rolling bearings and sliding bearing ( Hollow sleeve type bearing) Two kinds. Although rolling bearing friction torque is small, but poor adaptability to the dirt and corrosive liquids, live shorter lives. LBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

lBP magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

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lBP magnetic flap | | glass thermometer thermometer floating ball thermometer | | double color glass thermometer thermometer