How does an elliptical gear flowmeter leak

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1. Can the liquid turbine flowmeter measure high viscosity liquids?

The commonly used Ziyou instrument series high viscosity liquid flowmeter has the functions of displaying cumulative flow rate, instantaneous flow rate, and zero return, which can achieve on-site display and remote control.. For different measuring media (acid, alkali, organic liquid, oil, food, etc.), flow meters can be made of different materials (cast steel, stainless steel, and 316), suitable for flow measurement work in industrial sectors such as chemical, petroleum, pharmaceutical, power, metallurgy, and food. The flowmeter with messaging function can be matched with our companys flow integrator and other instruments for centralized detection, outputting standard signals for automatic control and data processing, and can be directly connected to a computer network. Working principle of high viscosity liquid flowmeter: The measuring part of the high viscosity liquid flowmeter is mainly composed of two interlocking elliptical gears and their housing (measuring chamber). The measured medium mass per revolution of the elliptical gear is four times the half moon product. Therefore, the volumetric flow rate Q through the elliptical gear flowmeter is Q=4n υ 0, where n - the rotational frequency of the elliptical gear (revolutions per second); υ 0- Volume of the half moon shaped part (shell) In this way, under the condition that the half moon product υ 0 of the elliptical gear flowmeter is constant, as long as the rotational speed n of the elliptical gear is measured, the flow rate of the measured medium can be known. The display of the flow signal (i.e. the rotational speed n of the elliptical gear) of the elliptical gear flowmeter has two

types: local display and remote display. After a series of deceleration and speed ratio adjustment mechanisms, the rotation of the gears is directly connected to the indicator pin on the instrument panel and the total amount is displayed through a mechanical counter. Remote transmission display mainly drives the permanent magnet to rotate through the gear after deceleration, so that the contact points of the spring relay are synchronously closed or opened at the same rotation frequency as the permanent magnet, thereby emitting a series of electrical pulses for remote transmission to another display instrument. The main characteristics of high viscosity liquid flowmeter are:

1. Flow measurement is independent of the flow state of the fluid, because the elliptical gear flowmeter relies on the pressure head of the measured medium to drive the elliptical gear to rotate for measurement.

2、 The higher the viscosity of the medium, the smaller the amount of leakage from the gear and measuring space gap. Therefore, the larger the viscosity of the measured medium, the smaller the leakage error, and the more advantageous it is for measurement.

3、 High measurement accuracy, suitable for measuring the flow rate of high viscosity media, but not suitable for fluids containing solid particles (solid particles can jam gears, making it impossible to measure flow rate). If gas is mixed in the measured liquid medium, it can also cause measurement errors. Technical parameters of high viscosity liquid flowmeter:

1. Intrinsic safety and explosion-proof: Exia Ⅱ CTSd Ⅱ BT4;

2、 Connection method: flange connection: DN10~DN200;

3、 Installation method: horizontal, with vertical orientation;

4、 Ca

1. Can the liquid turbine flowmeter measure high viscosity liquids?

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