SU896167A1 - Device for controlling the gate the flushing locks of settlers - Google Patents

Description

(54) DEVICE FOR CONTROLLING THE VALVE OF CLEANING CLEANING VALVES

FIELD OF THE INVENTION The invention relates to hydraulic engineering, in particular, to devices for controlling the closure of the flush gateways of the irrigation tanks.

A device is known for flushing irrigation tanks, including a washing gate with a slide and a level indicator of sediment with a well 1.

A disadvantage of the known device is the complexity of the sensor and the complexity of its manufacture.

The closest technical solution to the present invention is a device for controlling the gate of the washing tanks of the settling tanks, including a load level sensor, a slide with a horizontal axis of rotation, connected to the counterweight, and a chamber in the gate body, connected to the load level sensor 2.

The disadvantages of such a device are the need for a large water pressure to ensure water purification in the reservoir tank from sediment, a small range of work, and the difficult process of discharge of sediment from the feed shaft after washing sediment from

ostoynika, low speed design itself. In addition, it is also not. it has mobility, i.e., it is difficult to change the location of the feeding shaft relative to the sediment of the sediment, the need to maintain the initial level to fill the gate tank after flushing and idle discharge of a large amount of irrigation water.

The purpose of the invention is to expand the functionality of the shutter and reduce water losses for flushing.

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This goal is achieved by the fact that the level sensor of the nanos is made in the form of a rectangular pipe with movable and fixed parts interconnected by a corrugated tube, the movable part provided with a float that has a tube connected to the atmosphere, and a connecting pipe with supply pipe.

In addition, the supply pipeline is flexible.

FIG. Figure 1 shows the use of the proposed device in combination with an automatic shutter for the washing of sediments (guide pins are not indicated), one of

options; in fig. 2 - sediment level sensor, longitudinal section; in fig. 3 shows section A-A in FIG. 2

The device consists of a non-movable part 1 connected by means of a corrugated tube 2 and guide rods 3 with a movable part 4, which has a discharge pipe 5 of a flexible supply pipe 6, a float 7, a pipe 8 and a fastener 9.

The operation of the device is as follows.

If there is no water in the settling chamber, the shutter under the action of the weight of the counterweight is open. As water enters and the working level is established in the settling tank, it passes through the sediment level sensor, the fixed part 1 of which is fixed by rigid connections to the transverse beam mounted on the sides of the settling chamber by means of the flexible supply pipe 6, into the washing tank. this time, the movable part 4 with the help of the float 7 occupies the extreme upper position. At the same time, water from the shutter chamber flows through the bottom longitudinal slit, however, more water flows into the shutter container than flows through the slit, and this results in filling the shutter container. As the valve container fills, its weight increases and the valve lowers, closing the flushing hole.

If the water in the settling chamber is clean, the shutter is in the closed position. When setting up the device, the incoming flow is regulated by decreasing or increasing the cross section of the flexible supply pipe 6 with the help of some choke devices. By varying the length of the fastener 9, you can change the position of the fixed part 1 vertically, and by moving it horizontally, change the location of the sediment level sensor relative to the sediment of the sediment, thus increasing the frequency of the sediment flushing, i.e., expanding the range of washing slots. When the sedimentation tank is silted, the top of the sediment reaches the stationary part 1, fixed by fastening 9 at the required distance from the bottom of the settler, and as the top of the prism rises, its inlet is blocked by sediments. Due to the low vertical velocities, the flow through the sediment level sensor does not occur, and subsequently the water flow will stop. At the same time, water continues to flow out of the container through the bottom slit. The chamber is emptied, lightening the weight of the breech, and the latter is raised and opened by the action of the counterweight and the washing hole, ensuring the flushing of sediment. At the same time, the water level in the settling chamber is lowered, and the mobile part 4 by means of the float 7 and the corrugated tube 2 is also lowered. To prevent lateral deflection of the corrugated tube 2, guide rods 3 are provided.

In the process of flushing the sump, the inlet of the fixed part 1 is free of sediment and water begins to flow into the gate through the sediment level sensor, even at minimum water levels, since the fixed part 1 communicates with the gate of the gate through the supply pipe 6 and the movable part 4 fitted with the float 7, whose position depends on the water level in the sump, and the opening of the inflating tank of the flushing valve can be arranged at the minimum height from its lower edge. As the reservoir tank is filled, the latter closes the washing hole, stopping the flushing, i.e., the cycle repeats. The flow of water into the valve container, even at minimum water levels in the sump, ensures that the flush valve is independent of fluctuations in the sump.

The proposed device for controlling the gate of the flushing gaps of the irrigation tanks is simpler in design and much more complicated than the known ones, it allows to expand the range of operation of the flush gate, while the flow of water into the gate capacity even at minimum water levels in the sump ensures the operation of the flush gate from level fluctuations in the sump. It can be used not only on irrigation sedimentation tanks, but also for washing structures of mountain water intakes, head regulators.

The use of the invention will make it possible to more rationally use the entire working volume of the settler with a reduction in the irrigation water consumption for flushing sediment, which is especially important in irrigated agriculture.

Claims (1)

Invention Formula A device for controlling the shutter of the drainage sluices of the settling tanks, including a load level sensor, a shutter with a horizontal axis of rotation connected to the counterweight, and a chamber in the shutter housing, communicating with the supply pipe with a sediment level sensor, characterized in that, in order to expand the functionality of the gate and reduce the water loss for flushing, the sediment level sensor is designed as a pipe rectangular cross section with movable and fixed parts interconnected by a corrugated tube, the movable part being provided with a float, which