FI105290B - The flow meter - Google Patents

Description

105290

FLOW METER

Dissociated from patent application No. 964233.

The present invention relates to a flow meter for measuring the flow of water, for example waste water.

Flow meters are used, for example, in sewerage networks to measure effluent flows in different parts of the sewerage network.

The object of the present invention is to eliminate the drawbacks of the prior art and to provide a new type of flow meter according to the appended claims.

In the following, the invention will be explained in more detail by way of example with reference to the accompanying drawing, in which Figures 1a to la show a flow meter according to the invention.

A flow meter 20 according to the invention, shown in Figures 1a to 1a, measures the surface water flow rate and the surface level in the drain pipe 1. Fig. 1a shows a front view of a gauge steel wire 10, for example. . which is bent from top to center and spread out in the middle, and whose lower end is embedded in the holes of the tubular shaft 11. In addition, the steel wire 10 is embossed in two adjacent grooves, viewed from the side, in a circular pontoon 12a, 12b and filled with urethane 13.

f The function of the pontoons 12a, 12b is to hold the meter on the water surface such that the impeller 14 on the shaft 11 rotates on the water surface. The pontoons 12a, 12b are, for example, styrox plastic. They are laterally circular so that the roll depth does not change due to the amount of water and the resulting angle change. The design of the pontoons shown in Fig. 1a (inwardly 2 105290 tapers) is intended to direct the sediment at the bottom of the tube under the pontoons.

The impeller 14, for example, has wings 5 15 of acrylic plastic, the shape of which is adapted to the shape of an opening between the pontoons so that the wings extend outwards. At their ends are magnets 16, which are read by a magnetic field reader 17 located above the wings, which is further connected to the control system.

10

At the upper end of the body is a vertical aluminum tube 18, from which ends a vertical metal wire 19 connected at its upper end to an adjusting resistor 20 to obtain an angle at which the gauge floats, as shown in Fig. Ib, which shows the gauge from the side. By measuring the resistor of the adjusting resistor 20, an angle is obtained which enables the height of the surface to be calculated. The surface height can be used to calculate the area of the segment. The volume flow is obtained by multiplying the area of the segment by the flow rate of the water. The adjusting resistor is connected to a horizontal guide-arm 20, which is inserted into the upper part of the drain pipe 1 when measuring (Fig. Le). The guide arm 21 is further connected to the vertical arm 22. The direction of water flow is shown by the arrow in Fig. Ib.

It will be apparent to one skilled in the art that various embodiments of the invention are not limited to the above example, but may vary within the scope of the following claims.

Claims (1)

A flow meter for measuring the flow of water having a connector for fitting the meter to a measuring location, 5 such as a sewer pipe (1), an arm structure (18,19) fitted to the connector, with floats (12a, 12b) ) or the like and a speedometer (16,17) coupled thereto for measuring the surface water velocity, in which the coupling part is fitted with 10 sensors for measuring the angular position, wherein the flow rate can be determined and whose angular position of the arm structure is measured by the sensor, characterized in that the connecting part has a horizontal guide arm (21) to which the sensor is connected, and that the arm structure (18,19) is a rigid arm hinged by one joint (20). »· ~ R * 4 105290 Flödesmätare för mätning av et vattenflöde, försedd med et anslutningsstycke för att anpassa mätaren med mätningsstället," 5 säsom et avloppsrör, en vid anslutningsstycket applicerad armkonstruktion (18,19), vid Wolf. cerats flottörer (12a, 12b) som häller mätaren napattnets yta samt ett skovelhjul (14) eller liknande med en därtill kopplad hastighetsmätare (16,17) för mätning av ytvattnets strömnings-10 hastighare, flashing anslutningsst rotten squiggles, varvid volymströmmen kan be-stämmas med hjälp av ytvattnets strömningshastighet och vat-tensing-stroke (18,19) har sammanfogats och är styv, och striking-strings constructionsge giva-15 rennet en vägrät styrarm (21), account givaren har anslutits, och 20 att armkonstruktionen (18, 19) sam med-led (20) samman-fo gad styv arm r. • i, 9 »