SU1411718A1 - Device for automatic regulation of water level - Google Patents

Abstract

This invention relates to hydraulic engineering for automatic regulation. The goal of shading is to improve the accuracy of the device by reducing the volume of water discharged through the charging hole. The device comprises a shield 2, a main siphon 3 with a charging hole 4 and an air tube 8, a float sensor 15 of the lower pool, mounted on the rotary lever 13. Inclusion in the device of an additional siphon 6 with a charging hole 7 and air duct tube 9, connecting the descend The additional branch of the siphon 6 with the charging opening 4, fixing the ends of the air guide tubes 8 and 9 on the pivoting lever 13 allows to increase the accuracy of the device. 1 il. with Q

Description

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The invention relates to hydraulic engineering, in particular, to devices for automatic regulation of the level of water flow regime, and can be used mainly in hydraulic structures on canals of land reclamation systems.

The purpose of the invention is to improve the accuracy of the device by reducing the discharged volume of water through

Rifine hole of the main siphon.

The drawing schematically shows a device for automatically adjusting the water level, a section along the axis of the water course.

The device contains a shield 2 mounted on the flybet 1 and a main siphon 3 located in the upper reach, in the downstream branch of which there is a charge hole 4 located below the water level of the upstream 4 The output end of the main siphon 3 is connected to the culvert hole 5 in shield 2 . To the charging opening 4 — there is an attached — an output end of an additional siphon 6 of smaller cross section than that of the main siphon | 3. To charge an optional siphon 6, its downward branch is made with a charging opening 7, also located below the water level of the upstream, an air line tube 8 is attached to the upper part of the main siphon 3, and an air line tube 9, B ka-: at least 10, communicated with the downstream by the conduit 11, 12 double-arm lever 13 pivotsal with respect to the horizontal axis, to one arm of which the flexible ends of air duct tubes 8 and 9 are attached. Closer to the axis 12, this lever arm is connected by a cable 14 to a float th level sensor 15 downstream. On the other arm of the lever, the counterweight 16 is fixed. Axis 12 is connected to a screw elevator, which is mounted on support 1 with the possibility of its cargo screw 18 being vertically moved in the direction of being 19.

The automatically maintained lower pool level 20 is set by means of a screw elevator by moving the pivoting lever 13 along the height.

The device works as follows.

When the water level in the downstream drops below the predetermined mark, the float sensor 15 of the downstream respectively lowers, turning the lever 13, so that the inlet ends of the air duct tubes 8 and 9 are submerged under the water level in the chamber 10, thus preventing atmospheric air from entering siphons 3 and 6. Through the hole 7 from the upper reach a siphon 6 is continuously supplied with a stream of water that captures and removes air from its cavity, isolated from the cavity of the siphon 3 with a water mass of 21 in the curved output end of the additional siphon 6. E jets and entrained vozduhomprohodit: through the charging opening 4 and the main siphon 3 in the downstream, but its consumption is insufficient to charge the main siphon 3 ,. As air is removed from the cavity of the additional siphon 6, the water level in its upstream branch rises, water overflow occurs through its crest and the additional siphon 6 is charged, which ensures that the main siphon 3 is fed into the cavity

charging hole 4 of increased water flow, sufficient to charge this siphon. The inclusion in the work of the main siphon 3 provides. It doesn’t drain water from the upper pool to the lower one and restore the preset water level to the lower pool, as a result of which the float sensor 15 of the lower pool level rises, the swivel lever 13 under the action of the counterweight 16 returns to its original position, and the outlets from the water pipes 8 and 9, wherein the air enters the cavities of the siphons 3 and 6, which ensures their discharge.

Formulation Code

A device for automatically adjusting the water level, comprising a shield with a culvert opening installed between the upper and lower pools, a main siphon with a charge opening in the descending branch connected to the culvert hole in the shield and with an air-guide tube, downstream indicator mounted on the pivot arm, about t31411718-

spreading with the fact that it is equipped with a charging hole and so as to increase the accuracy of the device with the charging hole mainly by reducing the discharged volume of its siphon, and the neck of the water through the charging hole of the siphon siphon is equipped with an air siphon , it contains an additional water tube, and the ends of the air-conducting siphon of the smaller transverse pipes are flexible and cross-sections, which descend to the branch on the rotary lever.

Claims (1)

Claim A device for automatic control of the water level, comprising a shield with a culvert installed between the upper and lower ponds, a main siphon in the upper pond with a charging hole in the descending branch connected to the culvert in the switchboard and with an air pipe, a float , secured on a swing arm, characterized in that, in order to increase the accuracy of the device by reducing the discharged volume of water through the charging hole of the main siphon, contains an additional siphon of a smaller cross section, the descending branch of which 1411718 is provided with a charging hole and is connected to the charging hole of the main siphon, the neck of the additional siphon is equipped with an air pipe, and the ends of the air pipes are flexible and mounted on a swing arm. Compiled by T. Zadvornaya Editor V. Petrash Tehred L, Opium Proofreader L. Patay Order 3653/43 Circulation 866 Subscribed VNIIIPI of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Production and printing company, Uzhhorod, st. Project, 4