SU651081A1

SU651081A1 - Gate

Info

Publication number: SU651081A1
Application number: SU731905151A
Authority: SU
Inventors: Ахат Хусаинович Якупов; Анатолий Васильевич Бондарев
Priority date: 1973-04-10
Filing date: 1973-04-10
Publication date: 1979-03-05

Description

Изобретение относитс к гидротехнике, в частности к затворам дл гидротехнических сооружений.This invention relates to hydraulic engineering, in particular to valves for hydraulic structures.

Известен затвор, выполненный в виде закрепленной на флютбете эластичной замкнутой оболочки, полость которой соединена с верхним и нижним бьефами 1.Known shutter, made in the form fixed on the flybet elastic closed shell, the cavity of which is connected with the upper and lower pool 1.

Однако во врем работы за затвором откладываютс наносы, и при пропуске максимальных расходов затвор ложитс на слой наносов, вследствие чего он полностью не открываетс .However, sediment is deposited behind the gate during operation, and when the maximum flow is passed, the shutter rests on the sediment layer, as a result of which it does not fully open.

Цель изобретени - повышение надежности путем предотвращени отложени наносов за затвором.The purpose of the invention is to increase reliability by preventing sediment deposition behind the gate.

Это достигаетс тем, что часть оболочки со стороны нижнего бьефа выполнена в виде шарнирно установленного на флютбете щита.This is achieved by the fact that part of the shell from the downstream side is made in the form of a shield hinged on the flybet.

На фиг. 1 изображен регул тор уровн воДы в нижнем бьефе с затвором, продольный разрез; на фиг. 2 - затвор с регул тором разности уровней верхнего и нижнего бьефов, продольный разрез.FIG. 1 shows a water level regulator in the downstream with a gate, longitudinal section; in fig. 2 - shutter with a regulator of the difference between the levels of the upper and lower pools, a longitudinal section.

На флютбете 1 регул тора уровн воды в нижнем бьефе (фиг. 1) установлены балка 2 С отверсти ми 3, соединенными с верхним бьефом 4, и балка 5, на которой посредством шарнира 6 закреплен щит 7 с отверстием 8. К свободному концу щита 7 прикреплено гибкое полотнище 9, второй конец которого закреплен к балке 2. Гибкое полотнище 9 и щит 7 образуют затвор, перекрывающий поток воды.On the flybet 1 of the water level regulator in the downstream (Fig. 1) there is a beam 2 With openings 3 connected to the upper reach 4, and a beam 5 on which, by means of a hinge 6, is attached a shield 7 with an opening 8. To the free end of the shield 7 attached flexible panel 9, the second end of which is fixed to the beam 2. Flexible panel 9 and the shield 7 form a shutter blocking the flow of water.

Полость, образованна полотнищем 9 и щитом 7, соединена трубопроводом 10 с поплавковым датчиком 11, установленным в нижнем бьефе 12. На трубопроводе 10 установлен сифон 13, нисход ща ветвь которого опущена в нижний бьеф 12. На усто х регул тора уровн воды закреплены планки 14, ограничивающие свободный ход щита 7.The cavity formed by the panel 9 and the shield 7 is connected by a pipe 10 to a float sensor 11 installed in the downstream 12. On the pipe 10 a siphon 13 is installed, the descending branch of which is lowered into the downstream 12. On the levels of the water level regulator are fixed slats 14 limiting the free run of the shield 7.

Датчик 11 выполнен в виде поплавка 15 с клапаном 16, установленного в камере 17, св занной отверстием 18 с нижним бьефом 12. Седло 19 клапана 16 закреплено на оголовке трубопровода 10.The sensor 11 is made in the form of a float 15 with a valve 16 installed in the chamber 17 connected by an opening 18 to the lower pool 12. The saddle 19 of the valve 16 is fixed on the tip of the pipeline 10.

Описанный затвор может быть установлен в регул торе разности уровней воды верхнего 4 и нижнего 12 бьефов (фиг. 2).The described shutter can be installed in the controller of the difference in water levels of the upper 4 and lower 12 pools (Fig. 2).

Claims

In this case, the sensor 11 can be made of two float chambers 17 and 20, and the chamber 20 is located above the chamber 17. The chamber 17 is connected by a hole 18 with the lower pool, and the chamber 20 is connected by a pipeline 21 with the upper pool 4. In the chamber 17 a float 15 is installed with valve 16, the saddle 19 is O1 about by means of the bellows 22 is movably fixed on the tip of the pipeline 10. The saddle 19 is connected by a rod 23 with a float 24 installed in the chamber 20, which is attached to the bottom of the chamber 20 by means of the bellows 25 when you exceed her nominee battening level difference value befov 4, 12, valve 16 is opened. The water entering through the holes 3 into the cavity formed by the shield 7 and the panel 9 is discharged through line 10 and the valve 16 into the lower reach 12. The shield 7 is in a horizontal position. The water passes over the shield 7, raising the water level in the downstream 12 or reducing the difference between the levels of the upper 4 and lower 12 pools to the nominal. When the water level in the downstream 12 rises above the nominal value or the difference between the levels of the upper 4 and 12 lower pools less than the nominal. The valve 16 under the action of the float 15 or the floats 15, 24 also closes the water filling the cavity formed by the shield 7 and the panel 9 under; shield 7, blocking access to water from the upstream 4 to the lower 12. When establishing the nominal water level in the downstream or nominal water level difference in the upper 4 and lower 12 pools, the gate takes some intermediate position, passing through a constant water flow required to maintain the water level in the downstream 12 or to maintain the difference in water levels in the top 4 and down 12 pools. In case of emergency overflow of the upper reach 4, the siphon 13 is charged, the water is released from the gate, the shutter opens, and the water is discharged to the lower reach 12. Running a part of the sheath shell from the lower side of the bottom of the shutter But, therefore, sediment deposition does not occur that interferes with the closure of the gate, which increases its reliability. The invention of the shutter, made in the form of an elastic closed shell fixed to the flybet, the cavity of which is connected to the upper and lower pools, differs from that, in order to increase reliability by preventing sediment deposition behind the shutter, part of the shell from the lower reach is made in the form of a phita that is hinged on a flybet. Sources of information taken into account in the examination 1. Sergeev .B. I. “Soft constructions - a new type of hydraulic structures. A., Kolos, 1971, p. 37-38.

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