SU1656501A1 - Mechanism for automatic washing of pumps - Google Patents

Abstract

This invention relates to the automatic flushing of irrigation tanks and is intended for use in the construction of tanks with automatic sediment flushing. The purpose of the invention is to simplify the device, increase its reliability and reduce unproductive water consumption. In the device containing a rotary filled shutter with a counterweight 16 placed on the washing hole 10, a 3 sediment sensor connected by a supply pipe 9 to a shaft equipped with a drain 8 and a float 6, the shutter is made in the form of a prism with an upper fixed face 12, a lower movable face 13 and an elastic sheath 14 between them, the bottom face 13 is provided with a drain hole 15 and a counterweight 16, and a throttle valve 7 is connected to the float 6 on the supply pipe 9. 1 Il. (L

Description

This invention relates to the automatic flushing of irrigation tanks and is intended for use in the construction of tanks with automatic sediment flushing.

The purpose of the invention is to increase the reliability and simplify the design, reducing the unproductive costs of irrigation water.

The drawing shows a device for automatic flushing of sediment, a vertical longitudinal section.

On the sump 1, in place of the lower boundary of the formation of the sediment of sediment 2, a sensor of sediment 3 is connected, connected by pipeline 4 to the shaft 5. In the mine 5 there is a freely floating float 6, which drives the throttle valve 7, in addition, the mine has a discharge 8 with a diameter smaller pipe diameter4. The throttle valve 7 regulates the water supply in the supply pipe 9, which connects the water level at the inlet of the sump 1 and the gate's capacity. A rotatable fill valve is mounted on the washing hole 10 and is attached to the diaphragm 11. The shutter is made prismatic with the upper fixed 12 and lower movable 13 edges connected between the folding fabric in the form of an elastic sheath 14. The lower edge 13 has a drain hole 15 and a counterweight 16. The system has an emergency spillway in case of a sudden excess of the maximum water level (not shown).

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The device works as follows.

In the off position, the shutter under the action of the weight of the counterweight 16 is closed. When water flows into the sump, water flows through the sensor 3 into the shaft 5. The flow rate of the flow into the shaft 5 at the same time is greater than the flow rate of the drain through the drain 8, which is provided by different diameters of the pipeline 4 and drain 8. As a result, in the shaft 5 the water level begins to rise, due to as the float b rises, opens the throttle valve 7 and the water through the supply line 9 begins to flow into the gate container. Due to the difference in diameters of the drain opening of the shutter 15 and the supply pipe 9, the incoming flow of water into the shutter is more drainage, so it closes with even greater force. As sediments enter and their level increases, the flow of water through the 3 sediment sensor into mine 5 decreases and, with a certain calculated prism, the sediment becomes less than the discharge flow from mine 5. As a result, mine 5 is emptied, float 6 lowers and blocks the flow of water into the container. The shutter is emptied through the drainage opening 15 and opens, providing for the flushing of sediment.

As the sediment rinses, the entrance to the 3 sediment sensor is free from sediment, water

again begins to flow through pipe 4 into shaft 5, which is filled with water, allowing the float b to be lifted and the flow of water through the supply line 9 to the valve is opened. The shutter closes and the cycle repeats.

With an increase in the water level in the sump above the maximum, an overflow of excess flow occurs through the emergency overflow into the lower reach of the sump.

Claims (1)

Claims of the Invention A device for automatic flushing of sediments comprising a rotary fill gate with a counterweight placed on the washing hole, a sensor of sediments connected by a feed pipe to a shaft in which a float is placed and which is provided with a drain, characterized in that, in order to simplify the device, to increase its reliability and reduce the waste of water, the shutter is made in the form of a prism communicated with the upper reach of the supply pipe, the upper face of which is fixed and connected to an elastic a shell with a lower movable face, provided with a drain hole and a counterweight, with a throttle valve installed on the supply pipe connected to the float.