SU1405029A1 - Flowrate regulator - Google Patents

Abstract

This invention relates to systems for controlling or controlling flow in a fluid flow. The aim of the invention is to increase the reliability of the controller. The flow regulator contains a float 1, a sewage weir 2, a shield valve 4. The idle-shaped drain holes 3 placed in the shield weir are placed in a staggered order within the depth of the liquid intake, and in the pin gate 4 are drain holes 5 placed on the depth of fluid intake corresponding to a given flow rate makes it possible to increase the reliability of the regulator. 4 il. s (c

Description

Phys. 1

This invention relates to systems for controlling or controlling flow in a fluid flow.

The purpose of the invention is to increase the reliability of the controller.

Fig. 1 is a schematic diagram of the controller; 2-4 - controller in various stages of operation

The flow regulator contains floats 1, shield weir 2 and -shaped with drain holes 3 The regulator contains a movable shield valve 4 with drain holes 5, which are located at a distance from the upper edge of the float 1 equal to the depth H of the liquid intake Corresponding to the specified flow rate, Holes 3 are placed on the shield weir 2 within the depth of the liquid intake and in a checkerboard pattern.

The total drain area of the drain holes 3 and 5 at any position of the float 1 is constant.

The flow regulator operates as follows.

At a constant water level in the source, the float 1 with the gate valve 4 is at rest. In this position, half the total number of drain holes 5 of the shutter plate

4 is closed by gaps between the drain holes 3 of the shield weir 2 (the holes in FIG. 2 are shaded),

and a friend half drain holes

5 completely coincides with all the drain holes 3 of one row of shield weir 2, where the liquid from the source is poured.

When the fluid level in the source changes, the float 1 begins to move the shield gate 4, as a result of which the open holes 5 begin to close in continuous gaps between the holes 3 of the next row of shield weir 2 (Fig. 3). At the same time, how many of the first half of the holes 5 are closed (in Fig. 3 are shaded), the second half of the openings 5 open as many, which are closed by the gaps between the openings 3 of the weir 2 (in Fig. 3

not shaded). Thus, the cross section of the flow of the liquid overflowing into the water intake is kept constant.

Upon further movement of the gate valve 4, the first half of the holes 5, which were initially open, are completely closed by the gaps between the holes 3 of the next row (in Fig. 4, shaded). In the event that the liquid level continues to change and the float 1 continues to move the shield gate 4, the second half begins to close and the first half of the holes 5 of the rolling shield gate 4 opens, which ultimately causes the flow controller to return to its original position ( Fig. 2). In the following, the process is repeated.

Reliability in operation is achieved due to the fact that the pressure of the water perceives, mainly the shield weir 2, which facilitates the movement of the movable panel shutter 4 without closing. The consistency of the flow rate is due to the fact that the float 1 provides a constant depth of the intake, and the holes made in the fixed i-shaped switchboard weir 2 and the movable switchboard 4 provide a constant cross section for the outflow of liquid.

Formula inventions

A flow regulator containing a fixed shield spillway, a float rigidly connected to a movable shield gate placed in a shield switchboard, characterized in that, in order to increase the reliability of the regulator, the shield gate is provided with drain holes located at a depth of a predetermined flow rate. and the shield weir is made in a U-shape – IIM and is equipped with a number of drain holes arranged in a staggered order within varying depths of the fluid intake, the total drain area of the drain holes being constant at any polo enii float.

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Claims (1)

Claim A flow regulator comprising a fixed shield waterdrop, a float rigidly connected to a movable shield shutter located in the shield. spillway, characterized in that, in order to increase the reliability of the regulator, the shield valve is provided with drain holes located at a depth of a predetermined flow rate ^ and the shield drain is made U-shaped and equipped with a number of drain holes placed in a checkerboard pattern within the limits of changing the depth of fluid intake, moreover, the total drainage area of the drain holes is constant at any position of the float. Fi g. 2 Phil