SU1059551A1 - Apparatus for control of water level in water-development works - Google Patents

Abstract

A DEVICE FOR REGULATING WATER LEVEL IN HYDROTECHNICAL CONSTRUCTIONS, containing a shield valve installed on a horizontal axis of rotation with a float connected to a flexible shell with a flexible shell, forming a chamber connected to the upper and lower beams, which forms a chamber, connected to the upper and lower shell, and a gate, which is connected to the outlet and the lower shell, is a piece, a piece is a real place, and the building is in a place is a piece of a piece by itself, a piece is in place, and there is a place to go, and a piece of the building, a piece of the building, a building is connected by a piece, and the building has a place and a building is in a place, and there is a place to go, and there is a place to go; speed, it contains an upstream level setting unit, an additional flexible casing connected to the bottom face of the float and a flybet, and a control chamber formed by the pressure face u It has an additional shutter, an additional flexible casing, the bottom edge of the float, and a flow bottom connected to the upstream pipeline, on which the upstream level indicator is installed, and having a drain hole. ate: D sa ate

Description

The device relates to hydraulic engineering and can be used as a water level regulator at the retaining blockage (waste and drainage facilities as a low-pressure dam. A device for regulating the water level in hydraulic structures known as a closed elastic shell at the pressure head is known. and the drain surfaces of which are formed holes, and the hole on the pressure surface is provided with a rigid valve attached by means of flexible connections to the pschlak, which is located in the upstream l. the strength of this device is low reliability due to the possibility of a breakthrough pressure surface, low adjustment accuracy, since each position of the valve must correspond to its position of the float, and consequently, the water level in the upstream, and these parameters change with rotation opening (lowering the pressure surface, the valve and the valve together with the float), the small rapid response is the smaller, the larger the chamber of the shutter, the impossibility of changing the water level setting. . Closest to the present invention is a device for adjusting the level in the form of a collapsible dam, including a floating shield, bounding a cavity formed by a flexible shell and a structure. The healed cavity is connected to the upper pool by means of which the working substance for lifting the shield is pumped. As the working substance is pumped out, the shield is lowered, dropping excess water 21. The disadvantages of the known device are low operational reliability due to the possibility of sedimentation of the cavity, loss of performance at the slightest breakthrough of the shell, vibration caused by the breakthrough of air into the ridge spaces of the crest of the shield and the inability to automatically adjust the level is small drawdown rate. The purpose of the invention is to drive the speed of the device. The goal is achieved by the fact that a device for adjusting the level of water in hydraulic structures, containing a shield valve installed on a horizontal axis of rotation with a float, connected to a beater with a flexible sheath, together with the gate and a flute beam, communicates with the upper and lower beefs and additionally contains An upper tail level transmitter, an additional flexible casing connected to the lower face of the float and a flybet, and a control chamber formed by the pressure face of the panel valve , an additional flexible casing, the bottom edge of the float and the flybet communicated with the upstream pipeline, on which the upstream level indicator is installed, and having a drain hole. The drawing shows the proposed device, the cut. The device contains a shield valve 1 with a float 2 mounted on a horizontal axis of rotation 3, connected to the floatbeat 4 of the structure with a flexible sheath 5, which together with an additional flexible sheath b, the shield closure and the flutebeam 4 forms a chamber 7 that communicates the upper reach with slot channel 8 with the construction (across the entire width of the structure), and with the lower - slit notch 9, the size of which is smaller than channel 8 (on structures with a clean notch 9 is not needed), the control 1 meter 10 formed by the additional flexible sheath 6, flutbet 4, pressure face Sewing shutter 1 and the bottom edge of the float 2, connected to the upstream pipeline 11, equipped with a drain hole 12. On the pipe 11 is installed unit 13 level upstream. On the protrusions 14 in the side walls of the building, rubber plates are attached to fix the shutter in the closed position and protect it against shield losses. At the base of the structure there is a niche 15. The gauge 13 consists of a membrane 16, a drain tube 17 ,. supply pipe 18 with a flexible insert for changing the set point; screw elevator 19. The device operates as follows. In the absence of water in the canal (for example, a river), the shield valve 1 will lower under its own weight, the flexible shells 5 will sink into the niche 15 of the base. As water enters the headwater with a rising level, water will begin to flow into chambers 7 and 10. When chambers 7 and 10 are filled, a hydrostatic pressure will start to act on the pressure face of the float, due to which (the thickness of the float is assumed to the moment of which exceeds the moment of the opposing forces). Shield shutter 1 rises and overlaps the span. Upon reaching a predetermined level in the upstream, water through pipe 18 of the setting device 13 will begin to flow into the control chamber 10, the membrane

16 will run through (the cross-sectional area of the drain pipe 17 is taken less than the cross section of its feed pipe) and will block the entrance to the pipe 11, thereby stopping the flow of water into the chamber 10. As a result, the chamber 10 through the drain hole 12 will begin to empty, and thereby decrease the pressure of the water on the pressure face of the float 2 and on the pressure face of the gate valve 1, limited by chamber 10, which leads to a decrease in the moment of resistance forces, due to which the gate valve 1 will start to drop, dropping excess flow to the downstream through the drain th and the side faces of the shield

When the level in the upper below the water mark drops, the flow of water into the pipe 18 (customized level) will stop, the supermembrane chamber 16 through the drain tube 17 at the base will be emptied, the membrane 16 will be propelled by the pressure of the water from the upstream side, thus opening access Vedas into the chamber 10 and the rise of the shield-gate 1. The balance will come when pouring into the chamber 10 and draining it through the drain hole 13 will balance

what will be at a given level in the upstream.

The device can also regulate the downstream water level, for this it is sufficient to make a controlled discharge instead of pouring into the chamber 10. At the same time, the inlet area should be less than the discharge area.

The device allows

0 maintaining a given, constant in time channel water level with the possibility of changing the task, works on using the energy of the water flow, i.e. very economical. It is distinguished by automaticity

5 work, increased speed, control accuracy, ease of operation. The device can be mounted on existing structures without significant reconstruction, used as an independent dam for accumulating runoff, as a level regulator for blocking, discharge structures, as a water supply structure, can be used Closed Settlement for Automation of Stock Transformation, etc.

Claims (1)

A DEVICE FOR REGULATING A WATER LEVEL IN A HYDROTECHNICAL STRUCTURE, comprising a shield shutter with a float mounted on a horizontal axis of rotation, connected to a flatbutton by a flexible shell, forming together with the shutter and the flatbutton a chamber communicated with the upper and lower concretes, characterized in that of its speed, it contains an upstream level adjuster, an additional flexible shell connected to the bottom face of the float and the flash bet, and a control chamber formed by the pressure side of the shield the shutter, an additional flexible shell, the bottom face of the float and a flute bet, connected to the upper pool by a pipe on which the level head level switch is installed, and having a drain hole. <8 £ □ Ί SB cl sl> The device relates to hydraulic engineering and can be used as a water level regulator at retaining-blocking and waste structures as a low-pressure dam. A device for regulating the water level in hydraulic structures, made in the form of a closed elastic shell, on the pressure and drain surfaces' 10 of which holes are formed, and the hole on the pressure surface is equipped with a rigid valve attached by means of flexible connections to the float, which is located in the upper head [one] . The disadvantage of this device is its low reliability due to the possibility of * breaking through the pressure surface, low accuracy of regulation, since each position of ^J- channel must have its own position of the float, and therefore the water level in the upper pool, and these parameters change with rotation by opening (lowering the pressure surface, as well as the valve and the float), low speed, which is less, the larger the size of the shutter chamber, the inability to change the water level setting. . Closest to the proposed device is a level control device in the form of a collapsible dam, including a floating shield that limits the cavity formed by the flexible shell and the structure. The closed cavity communicates with the upper pool by a pipe through which the working substance is pumped to raise the shield ·. As the working substance is pumped out, the shield lowers, dumping excess water [2]. The disadvantages of the known device are low operational reliability due to the possibility of siltation of the cavity, loss of performance at the slightest breakthrough of the shell, vibration caused by the breakthrough of air into the sub-jaw spaces of the crest of the flap, the inability to automatically control the level, low speed operation. The purpose of the invention is to increase the speed of the device. * The goal is achieved> by the fact that a device for regulating the water level in hydraulic structures, comprising a shield shutter with a float mounted on a horizontal axis of rotation, connected to a flatbutton with a flexible shell, which together with the shutter and with the flatbutton forms a chamber in communication with the upper and lower concretes, additionally contains the upstream level adjuster, additional - a flexible shell connected to the bottom face of the float and the flute, and a control chamber formed by the pressure face of the shield shutter, 5 with an additional flexible shell, the bottom face of the float and the flute bet, connected with the upper pool by a pipe on which the upper pool level switch is installed, and having a drain hole. The drawing shows the proposed device, section. The device comprises a shield valve 1 with a float 2 installed 15 on the horizontal axis of rotation 3, connected to the building’s flatbet 4 with a flexible shell 5, which together with an additional flexible shell 6, a shield shutter and a flatbet 4 forms a chamber 7, communicating the upper pool with a slot channel 8c with the structure (over the entire width of the structure), and with a lower slotted cut-out 9 smaller than channel 8 (at 25 structures with clean water, cut-out 9 is not needed), a control chamber 10 formed by an additional flexible shell 6, a flute 4, and a pressure head. the edge of the shield shutter 1 and the lower edge of the float 2, connected with the 3 ° upper downpipe by a pipe 11, equipped with a drain hole 12. On the pipe 11 is installed upstream level switch 13. On the protrusions 14 in the side walls 35 buildings reinforced with rubber plates designed to lock the shutter in the closed position and protect against shield losses. At the base of the structure, niche 15 was made. 40 The setter 13 consists of a membrane 16, a drain pipe 17 ,. supply pipe 18 with a flexible insert for changing the setpoint, screw lift 19.