RU1820937C - Turbine flowmeter - Google Patents

Abstract

Usage: measurement of fluid flow. The inventive flow meter consists of a housing 1 with a measuring channel, in which the input 3 and output 4 fairings are installed, between which a turbine is mounted on a fixed axis. 13. In the inlet fairing 3 of the flow meter, a hole is made in the center end. In the fixed axis 7 and supports b is made. a through axial channel 8. In the attachment points of the supports 6 to the fairings 3 and 4, a number of channels 12 are also made, the axes of which are inclined in the direction of rotation of the turbine 13. Part of the flow entering the cavity of the inlet deflector 3 passes through the holes 10 and the channel 8 flows into the cavity of the outlet fairing 4, and further, the path through the inclined channels 12 both from the side of the inlet fairing 3 and from the side of the outlet fairing 4, has an additional effect on the notch 13, thereby compensating for the decrease in the flow velocity near the detectors, i.e. in fluid viscosity. At the same time, the position of the rotating impeller 13 along the axis 7 is stabilized. 2 sludge. (L C

Description

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The invention relates to measuring technique and can be used, in particular, for measuring fluid flow. ; - -. ...:

The purpose of the invention is to increase accuracy by reducing the influence of the viscosity of the measured product.

In FIG. 1 schematically shows the proposed flow meter, section; figure 2 is a section aa in figure 1.

The flowmeter consists of a housing 1 with a measuring channel 2. In the channel 2, the input and output cowls 3 and 4 are installed, respectively, with fins 5, which perform Melytov rollers. Between the fairings 3 and 4, a fixed axis 7 is installed on the bearings 6, in which the axial channel 8 is made. A hole 9 ″ is made in the end part of the hollow inlet fairing and holes 10 are made on the ends of the supports b.

A number of channels 12 are made in the attachment points of the supports b, the axes of which are inclined in the direction of rotation of the turbine 13 installed

on the fixed axis 7 using a plain bearing. On the housing 1, a node 14 for detecting the rotation speed of the turbine 13 is installed.

Claims (1)

SUMMARY OF THE INVENTION A turbine flowmeter comprising a housing in which an inlet cowl is arranged with a device for reducing the influence of flow viscosity having a channel whose axes are inclined in the direction of rotation of the turbine; them to the fairings, and the signal pick-up unit, which is also related to the fact that, in order to increase the measurement accuracy, the channels whose axes are inclined in the direction of rotation of the turbine are additionally made inside the input and output first fairings, the nodes 0 attaching supports to the cowl m at the end of the keeper inlet cowl has an opening, and a fixed axis and the supports on which it is fastened is made through channel. 0 5 Aa