SU1427341A2 - Livel controller for ponds of hydraulic engineering structures - Google Patents

Abstract

The invention relates to hydraulic engineering, in particular to level regulators in the checks of rice irrigation systems, and is an improvement to the level regulator according to the author. St. No. 1236435. The purpose of the invention is the elimination of unproductive consumption of irrigation water. The level regulator contains a supply pipe 1, a shutter 5 mounted on the axis of rotation 7, a float sensor 14 of the level, a control chamber 9. The inclusion in the regulator of the tank 1 9 with the float 20 connected to the disk shutter 16, the message of the tank 19 to the upper The downstream channel 27, with the downstream side - channel 28, on which additional valves 29, 30 are installed, eliminates unproductive consumption of irrigation water. 2 Il. . / S (l

Description

1

four

Yu

hch

The invention relates to hydraulic engineering, to maintain a given level in the checks of rice irrigation systems, and is an improvement to the level regulator according to the author. No. 1236435.

The purpose of the invention is to eliminate unproductive expenditure of water resources.

The drawing shows the proposed controller.

The level regulator contains a supply pipe 1 with a THeti 2 water outlet, a water inlet 3, and a base 4 of the structure. At the water outlet 2, a shutter 5 is installed, consisting of two pads 6, rigidly and at an angle connected to each other. The shutter 5 is installed on the horizontal axis 7 of rotation. The level regulator contains a septum 8, behind-the-wall fixed in the x 4 structures. A control chamber 9 is placed above the gate 5, the partition 8 is closed from the side of the lower pool and communicates with the lower bay by channel 10, and with the upper bay by channel 11, which is made in the basics 4 of the structure, and channel 10 is in the partition 8. On channel 10 has a valve .12 connected by a rod 13 to a level sensor 14, which is mounted on the rod 13 by a clamp 15. The feed pipe 1 in the contact zone with the gate 5 has a bevel 30, A rotary disk is mounted on the inlet side of the 3 upper side tail pipe the shutter 16 mounted on the axis 17 of rotation with lever 18. The regulator contains a container 19, in which an additional float 20 is installed with a rod 21 connected through a hinged-lever link 22, which includes levers 23 and 24 with an emphasis 25. At the same time, the rod 21 is placed in channel 26, which has a capacity of 19 connected to the atmosphere. The container 19 communicates with the upper reach channel 27, and with the lower one - the drain channel 28. At the outlet nozzle, an additional valve 29 is mounted on the rod 13 connected to the level sensor 14, and an additional spring-loaded valve 30 connected by a hinged pin Goy 31

with shutter 5.

one

The level regulator works as follows.

0

Q

five

five

0

0

five

0

If there is an insufficient level in the downstream 32, the sensor 14 is lowered and the valves 12 and 28 are open and the valve 29 is closed. Water entering control chamber 9 through channel 11 flows through channel 10, which is larger than channel 11. Therefore, there is no overpressure in control chamber 9. The water entering through channel 27 into vessel 19 flows out through channel 28. The shutter 16 is fixed in the open position. At the same time, under pressure of water in the supply pipe 1, arising due to the pressure H (the difference between the levels of the top 33 and the bottom 32 pools), the gate 5 is open on the building, freely turning on the axis of rotation 7. Water enters the downstream 32.

At the moment when a given water level in the downstream 32 is reached, the water level sensor 14 closes the valves 12 and 23 by means of the rod 13, which block the channels 10 and 28, respectively. The water supplied under pressure through the channel 11 into the control chamber 9 fills it which causes the shutter 5 to close. The water entering through the channel 27 into the container 19 begins to accumulate in it, which leads to the float 20 with the rod 21 moving upwards. But the volume of the tank 1 9 and the dimensions of the channel 27 are chosen so that filling them before the interaction of the rod 21 with the lever 23 begins 1.5-2.0 times slower than the chamber 9.

When the shutter 5 is completely closed, it opens the valve 30 through the tug 31, which leads to the discharge of water from the tank 19.

During depressurization of the elastic shell of the chamber 9, the water pressure in it will not be enough to completely close: shutter 5. In this case, valve 30 will be closed. Water collected in the tank 19 raises the float 20 with the rod 21 all the way into the lever. 23, which leads to the release of the gig 24, and the butterfly valve 16, having turned around the axis 17, closes the inlet 3 of the feed pipe 1. The water supply to the check is stopped. The rod 21 and the lever 23 serve as indicators of the emergency regulator.

After the tightness of the control chamber is restored 9 with the thrust 24 through the cutting lever 18, the shutter 16 is turned

and bring the system back to its original operating condition.

Claims (1)

Invention Formula Level controller in the pools of hydraulic structures according to ed. St. No. 1236435, characterized in that, in order to eliminate the unproductive consumption of irrigation water, it contains a tank communicated with the upper pool, equipped with a drain channel, an additional float with a rod connected through a hinge-lever link with a butterfly valve mounted on the water outlet, and two additional valves are installed at the downstream outlet of the drain channel, one of which is connected to the level sensor and the other is spring-loaded to the outlet of the drain channel and is connected by a hinge rod to the gate.  / / sixteen 1 18 7J gz FIG. 2