SU1381441A1 - Water level controller - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used to control the level of water in reclamation systems. The aim of the invention is to improve the speed and accuracy of the controller. The level regulator contains iodine output 1, shutter 2, control device 6, float valve. The regulating device 6 is made in the form of a filled chamber. The placement of the filled chamber in the downstream, the float valve on the filling channel 10, the supply of the drain hole 7 with an additional valve 8 allows to increase the speed and accuracy of the regulator. 1 il. S (l

Description

eight

/ 9 W. / u

113

The invention relates to hydraulic engineering and can be used to regulate the level of water in reclamation systems equipped with tubular outlets.

The purpose of the invention is to improve the speed and accuracy of the controller.

The drawing schematically shows a water level regulator.

The level regulator consists of a water outlet 1 located between the upper and lower pools with a rotating shutter 2 mounted at an angle to the flow, fixed on axis 3 and connected kinematically by means of lever 4 through an adjustable pull 5 with a regulating device 6. For the avoidance of water hammer, which adversely affects the outlet and contributes to the suffusion of the soil around it, the lower part of the butterfly valve 2 is located downstream, and the upper part is upstream. To reduce the force on the closing-opening, the width of the shutter 2 must be more than twice its height, while maintaining the required area of the living section.

The regulating device 6 is performed by the circulating device 6 to the quivering device 6, which will provide the downstream channel. At the same time, water from the upstream along the pulse line 10 is supplied to the float valve 11. Under the action of a loaded rod 15, the membrane 14 blocks the inlet 12, excluding the flow of water into the regulating device 6.

When the water level in the downstream reaches the preset limit, the float 18, acting through the yoke 1 7 on the rods 15, releases the membrane 14. Water flows through the inlet I2 of the float valve I1 from the filling channel 10 to the regulating device 6, which, acting on the lever 4, fixed on the axis 3, and moves the rotary shutter 2 to the closed position. When the regulating device 6 is moved to the lower position, the valve stem 8 interacts with the stop 9, providing water flow from the regulating device 6. Due to the difference in flow sections of the inlet 12 of valve 11 and the holes in the valve 8, as well as the pressure difference, a constant water level is maintained in re

but in the form of a chamber equipped with a drain hole 7 with an additional valve 8 allowing to increase the speed of the level regulator. In the lower position of the chamber, the valve 8 interacts with the stop 9. The chamber is filled with water from the upper pool through the filling channel 10 having a float valve II, in the case of which there is an inlet 12 and an outlet 13 of branch pipes. Using the membrane 14 and the stem 15, supplied with weights 16, the inlet 12 in the initial position is closed. By means of the rocker arm 17, the rod 15 is rigidly connected to the float 18. The manual control of the butterfly valve 2 is carried out with the help of the lever 4, and its fixation with the lock 19.

The level regulator works as follows.

In the initial period, the butterfly valve 2 is closed, the lever 4 is held in its initial position by the lock I9. When retaining the retainer 19, the butterfly valve 2 is shifted to the Open position under the action of water pressure in the upstream. Water from the upper pool through water supply 1 step 5

0

five

0

five

It holds the shutter 2 in the closed position.

When the water level in the downstream is lowered, the float 18 is lowered and places the float valve I1 in the Closed position, excluding the flow of water into the regulating device. Water from the regulating device 6 is poured through the valve 8. Under the action of the difference in pressure of water on its lower and upper parts, the valve 2 is transferred to the open position, while the valve 8 is closed.

When cessation of water withdrawal from the downstream and the establishment of a given horizon in it, the butterfly valve 2 under the action of the regulating device 6 is switched to the Closed position before the start of the subsequent withdrawal of water from the downstream canal.

To empty the downstream channel, the butterfly valve 2 is moved to the Closed position by means of the lever 4, which is held in this position by means of the latch 19.

The level regulator allows the regulation of the level of water in the downstream in an automatic tank.

bench press with high accuracy and high channel with headwater and high speed performance. float valve, different

Claims (1)

The invention is based on the fact that, in order to improve the speed and accuracy of the regulator, a water level regulator containing a full chamber is placed in the lower one located between the upper and lower pools above the liquid level, flooded with a discharge outlet mounted on the base valve its discharge opening is a shutter, a bore channel, and a drain opening is mathematically connected with a regulating auxiliary valve, a contact device made as connected with an abutment mounted on the full chamber, Generalized IPD level of the lower position of the camera.