SU1539734A1 - Lower pond level regulator - Google Patents

Abstract

This invention relates to water management and can be used for automatic level control in irrigation canals. The aim of the invention is to increase the reliability and operational use of the controller. The goal is achieved by the fact that in a level controller containing a water outlet pipe 1, a cylindrical gate 3, a hydraulic actuator, a distribution chamber 10, a float sensor 30 level, the hydraulic drive is made in the form of a floating tank 4 located coaxially to the cylindrical gate 3, and above the muffled part the water outlet pipes 1, opposite the upper end of the shutter 3 and at the upper end of the floating tank 4 are reinforced thrust annular tubes connected to the channel 9 communicated with the distribution chamber 10. 1 Cpf-ly, 1 ill.

Description

The invention relates to an important farm and can be used, in particular, for automatic control of the 'water level in the channels - 5 sprinklers of irrigation machines.

The purpose of the invention is to increase the reliability and operational use of the regulator.

The drawing shows the proposed 10 level control, General view.

The level controller contains a water outlet pipe 1, on which the housing 2 is mounted. In the latter there is a cylindrical hollow valve 3, coaxial 15. To which a hydraulic actuator is installed in the form of a floating vessel 4, rigidly connected to the valve 3, The tank 4 has a nozzle 5 for filling and emptying containers 4 with water and a nozzle 20 b for the exhaust and intake of air from the container 4. In the lower part of the housing 2 there is a nozzle 7, which is connected by an elastic tube 8 to the nozzle 5 and the channel 9 with a distribution chamber 25.

A fitting 11 is made in the upper part of the housing .2, connected by an elastic tube 12 with a fitting 6 and an air tube 13. A sealing ring 14 is placed on the landing torus .ZO shutter 3, and a sealing ring 15 is placed on the upper end of the floating tank 4. Housing 2 the water outlet pipe 1 is equipped with a blanked part of the ed in the form of a plate -16, on the inner surface of which an annular thrust tube 17 is placed, which has in the lower part of the hole around the entire perimeter.

An annular thrust tube 18 with holes is placed on the inner part of the housing 2, opposite the upper end of the floating tank 4. The plate 16 is attached to the housing 2 at. help racks 1'9.-In the plate 16 there are holes 45 20 and 21, through which the guides 22 and 23 pass, rigidly connected with the shutter 3 ”. The distribution chamber 10 contains cavities 24 and 25, through which the rod 26 with element 27, in which holes 28 and 29 are made, connected in the center of the rod 26, the latter is rigidly connected to the float level sensor 30. The distribution chamber 10 $$ is connected by a channel 31 to a water outlet pipe 1 by a channel 9 and placed in a stilling tank 32, mounted movably on a stand 33.

The level controller works as follows.

In the initial period, the shutter 3 under the influence of its own weight is in the open position and water freely flows into the channel. At this time, the float level sensor 30 is in its lowest position.

When filling the channel, the float level sensor 30 rises with the rod 26, while the rod hole 28 moves into the cavity 25, and the hole 29 into the atmosphere. Water from the tank 4 through the tube 8, the nozzle 7 channel 9, the cavity 25 and the hole 29 is poured into the atmosphere, the cylindrical tank 4 is filled with air through the nozzle 6, the tube 12, the nozzle 11 and the air tube 13, When reaching the position at which the buoyancy force of water the volume of the cylindrical container 4 filled with air will exceed the weight of the shutter 3, it rises and closes the outlet pipe 1,

When the water level in the channel decreases, the float level sensor 30 together with the stem 26 takes an extreme position, while the hole 28 moves into the cavity 24 and the hole 29 into the cavity 25. Water from the outlet pipe 1 through the tube 31, cavity 24, holes 28 and 29, cavity 25, channel 9, fitting. 7, the tube 8 and the nozzle 5 fills the cylindrical container 4 with water. At the same time, the water through the channel 9 enters the annular stop tubes 17 'and 18. Under the influence of its own weight and water pressure, the sealing rings 14 and 15 of the shutter 3 open, allowing water to enter the channel .

Claims (2)

Claim 1, a downstream level controller containing a water outlet pipe, a cylindrical hollow valve installed on the muffled part of the water outlet pipe, a hydraulic actuator connected by channels through a distribution chamber equipped with a sensing element, respectively, with a water outlet pipe or with discharge to the atmosphere, a float level sensor, associated with the sensitive element of the distribution chamber, and the only reason is that, in order to increase the reliability and operational * possibility of using the regulator, the hydraulic actuator It is made in the form of a cylindrical floating container rigidly connected to a cylindrical hollow shutter and installed coaxially with it; moreover, annular tubes with openings are fixed on the plugged part of the water outlet pipe and opposite the upper end of the floating chamber of the hydraulic actuator, the cavities of which are connected with the channels; the hydraulic actuator cavity is pneumatically connected to the atmosphere. 2. The level regulator according to claim 1, characterized in that the bodies of the cylindrical shutter and the floating capacity of the hydraulic actuator are made of plastic.