SU1501575A1 - Outlet cap of pressure spillway - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering, in particular, to discharge outlets of pressure spillways of industrial complexes. The purpose of the invention is to increase the efficiency of operation by increasing the distribution area of the discharge jet of water over the surface of the downstream. The exit tip contains a splitting chamber 1 connected to the end of the bottom discharge pipe 2 and completely thick with curvilinear side walls 3, with a flat inclined butt-wall A and nakloIprr: rt and struc- turing plates 6, under which lp are located perforated and air-8. Water flow through the pipe 2, 1starting R chamber I, the lateral parts of the flow run over the plate 6 and throwing It is through the hole in the upper part of the chamber; 1 downstream The central part of the flow passes to the window 7, is aerated by the air flowing through the lane (1 ventilation duct 8, runs onto the middle part of the wall 4, spreads outwardly the peripheral parts of the wall 4, and through the hole in the upper part of the chamber 1 is fanned out into the lower part 1). Eph. I 3. p. f-ly, 2 ill. i (L

Description

va / 4

SU1

SP

SP

3130

The invention relates to a hydrotechnical process, namely, to the outlet tips of pressure heads of hydraulic structures.

The purpose of the invention is to get the efficiency at work by increasing the area of the distribution of the discharge jet of water1, t over the surface of the downstream,

FIG. 1 is described as described above- / ypok, vertical section; FIG. 2 is a view along arrow A in FIG. I.

The outlet head of the pressure head water wasp contains a spraying chamber 1 connected to the end of the drainage pipe 2 and made with curviline side walls 3 and a flat end wall 4 inclined from the pipe 2. A wall 3 and A form a rectangular output in the upper part aperture 5. To the side walls 3 of the chamber I with an inclination towards the wall 4, streak-reflecting plates bj forming between themselves a water-propelling window 7 are secured. Under the plates 6 with their edges facing each other there are ner |} juridical chaudoobda 8 communicated with the atmosphere. Plates 6 can be installed with a twist to the side walls 3, i.e. not in one

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The flow of water passing through the pipe 2 enters chamber I. The side portions of the flow are incident on the plates 6 and discharged through the opening 5 onto the surface of the downstream, while due to pressure from the central part of the flow of the plastics 6 the jets of water are not only dropped axis of the spillway, but also to the side of it. This is - fy contributes to the rotation of the plates 6 n CTopoiry side walls 3. Effect

the scatter of the side parts of the flow depends on the angle of inclination of the plates 6 from the vertical towards the cusps 4 and from the angle of rotation of their side of the side walls 3. The central part of the flow through the window 7 falls on the middle part of the wall 4, spreads in both directions to its peripheral parts and the neer is dropped to the surface of the downstream. In this case, the central part of the water flow is aerated with air flowing through the perforations of the air ducts 8.

Claims (2)

1. The outlet head of the discharge spillway, which includes a spray chamber connected to the end of the discharge pipe with side walls and a flat end inclined from the discharge pipe, forming a rectangular outlet opening in the upper part, so that efficiency in operation by increasing the distribution area of the discharge jet of water but the surface of the downstream, the cap is provided with jet-retaining plates attached to the side walls of the chamber with the formation of lowering window, and the plates are installed with an inclination towards the end wall of the chamber. I  2. A cap according to claim 1, characterized in that it is provided with perforated; air ducts located under the plates parallel to their side edges facing each other. fig1 Editor N.Korchenko Compiled by A.Sergeev Tehred L.Oliynyk Zlkae 2440 Circulation VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Proofreader A. Obruchar Subscription