SU1087968A1 - Regulator of water mineralization in irrigation channels - Google Patents

Abstract

1. A WATER MINERALIZATION REGULATOR IN THE IRRIGATING CHANNELS, containing a water-filled valve with inlet and outlet nozzles and a floating capacity immersed in an adjustable medium, characterized in that, in order to improve the accuracy of the regulator and simplify it, the inlet nozzle is rigidly connected to the floating capacity, and in order to improve the accuracy of the regulator and simplify it, the inlet nozzle is rigidly connected to the floating capacitance moreover, the end of the inlet is located below the water level. 2. The regulator according to claim 1, characterized in that part of the inlet is made of a flexible material with a water density. (L o 00 w 05:00 ////// / / ////////////} Y / FtsgA / // /////////

Description

The invention relates to hydraulic engineering to devices for controlling the degree of mineralization of water in irrigation and can be used on irrigation systems, mainly rice, with the reuse of drainage and waste water.

A water level regulator is known, which includes a flexible cage stopper with an inlet and outlet nozzle and a float sensor of the upstream 1.

However, this device does not control the mineralization of the flow rate to the downstream.

Closest to the invention is a device for adjusting the level of water in pools, including a water-filled valve and a float gauge of water salinity. With an increase in water salinity, the buoyant force increases, which acts on the immersion of the float valve elements. As a result, the valve rises to a higher level compared to the initial one and gives the command to change the position of the gate in the direction of decreasing mineralization due to the influx of fresh water into the upstream. The opposite is true when water salinity decreases 2.

However, the known device has insufficient adjustment accuracy due to the need for some efforts that need to be applied to the floating vessel when the valve is opened and closed, giving a command to change the position of the shutter. It should be added that when the valve is opened on the siphon tube, they can be significant (with large drops of bulls), since the valve under the action of vacuum works like a suction cup.

The purpose of the invention is to increase the control accuracy, simplify the design and increase the reliability of the controller.

This goal is achieved by the fact that in the water mineralization controller in irrigation canals there is a water filled valve with inlet and outlet nozzles and the floating capacity of the inlet duct immersed in the controlled medium is rigidly connected to the floating tank, the end of the inlet nozzle located below the water level.

Part of the inlet is made of flexible material with a density of water.

FIG. 1 shows the regulator in the closed position B of the section along the longitudinal axis of the tubular water outlet in FIG. 2 — one of the options for combining the salinity sensor and the upstream fish level sensor.

The controller includes a water outlet 1, a water-filled valve 2 of a flexible shell.

the cavity of which is communicated with the upper 3 and lower 4 pools of the irrigation canal, respectively, by the inlet pipes 5 and outlet 6. In a controlled environment (upper

in the pool 3) there is a floating tank 7 with a pipe 8, filled with water with the required mineralization.

When combining the water salinity sensor and the upstream level sensor, they are both connected to the inlet nozzle 5 of the gate 2. The upstream pool float sensor contains a float 9 and a valve 10 on the nozzle 11.

The regulator works as follows.

When matched or. below a given water salinity in the upper & 3, the end of the pipe 5 is flooded, the flexible sheath of the gate 2 is filled and the outlet 1 is blocked. Water comes from the upstream to irrigation. With an increase in mineralization, the density of water becomes higher and the floating capacity 7 due to the increased buoyancy force floats up, carried away above the surface of the basin level 3, the end of the inlet pipe 5 of the gate 2. The inlet pipe 5 (or part of it) under the action of the outside water of the pool 3 flattens and turns into tape with a density equal to the density of water, i.e. with zero buoyancy. The flow of water into the flexible shell is stopped, only drainage occurs through

pipe 6. The empty shell of the shutter 2 opens the water outlet 1 and the water enters the discharge until the new incoming water in the upstream reaches the previous value and its density will allow the floating tank to dive 7

at the same time, protopiv at the same time the end of the inlet nozzle 5 under the level of the pool 3. Through the pipe 5, the water refills the valve and blocks the outlet of the water from the pool 3 with the required mineral back and can be used for irrigation.

With a combined sensor, including, for example, a float sensor of the upstream, the controller operates in the

maintaining the headwater level. When the level drops below a predetermined level, the float 9 opens the valve 10 on the nozzle 11, and the water entering the gate 2 closes the outlet outlet 1 with a flexible casing. When the level increases, the float 9 becomes valve 10

closes the hole in nozzle 11. The water supply to the shutter 2 stops (during normal mineralization), only the drain goes through the outlet nozzle 6, the shutter opens the water outlet, and the level in pool 3 is lowered to the set value.

The use of the proposed resetting of rice checks will allow you to automatically maintain the required

the degree of mineralization with higher accuracy, the simplicity of the design ensures that it is reliable.

The economic effect is to simplify the design by eliminating the system of floats with fastenings of various

tubes and valves in the known device. Increasing the accuracy of controlling the degree of mineralization will allow obtaining the effect by saving irrigation water from rivers or other sources to reduce mineralization.

Claims (2)

1. WATER MINERALIZATION REGULATOR IN IRRIGATING CHANNELS, comprising a water-filled shutter with inlet and outlet nozzles and a floating tank immersed in an adjustable medium, characterized in that, in order to improve the accuracy of the regulator and and its simplification, the inlet pipe is rigidly connected to the floating tank, and the end face the inlet is located below the water level. 2. The regulator according to π. 1, characterized in that the part of the inlet pipe is made of flexible material with a density of water. Figure 1 oo <1 with & oo