Electronic metering device for milking in constant volume

Abstract

The invention discloses an electronic metering device for milking in constant volume and aims to provide an electronic metering device for milking in constant volume, which has high detection accuracy. The electronic metering device mainly comprises an upper shell, a metering cavity and a lower shell and also comprises a constant volume cavity, a valve body and a two-phase gas and liquid flow separating pipeline, wherein the constant volume cavity is arranged between the metering cavity and the lower shell, and the metering cavity and the constant volume cavity are firmly connected in series from top to bottom and are hermetically installed through the upper shell and the lower shell; the valve body is arranged between a circular passage for milk to flow and a circular passage for discharging milk; the two-phase gas and liquid flow separating pipeline passes through the metering cavity along the axial direction; the upper port of the two-phase gas and liquid flow separating pipeline extends out of the upper cone of the metering cavity and is communicated with the inner cavity of the upper shell; and the lower port of the two-phase gas and liquid flow separating pipeline is communicated with the constant volume cavity. The invention is suitable for dynamic volumetric metering of milking volume of mechanized milking stations.

Description

technical field [0001] The invention belongs to an instrument for measuring milk volume in animal husbandry milking equipment, in particular to an electronic metering equipment for constant volume milking. Background technique [0002] At present, when milking stations in my country measure milking volume, two measurement methods are generally used, one is static measurement, and the other is dynamic volumetric measurement. Chinese products generally adopt static measurement, while similar foreign products adopt dynamic volumetric measurement. Static measurement is generally carried out by means of floor scales, platform scales, bottle-type measurement, etc. The operation of this measurement method is not only laborious, labor-intensive, time-consuming, the steps are cumbersome, difficult to manage, and it has the disadvantages of low precision and secondary pollution. The existing foreign metering method is a dynamic volumetric type, which uses a float sensor to control th...

AI Technical Summary

Problems solved by technology

However, there are still shortcomings: that is, during the milk discharge process, the milk continues to collect and continue to flow, so that the actual discharge volume is greater than the metered volume, and the excess volume can only be compensated by the milk discharge time (T+Δt) software. is one of the reasons for the error

Although its accuracy index is nominally ±1.6% to ±2%, the actual highest accuracy can only reach ±2% to ±3%.

Images