RU1809868C - Pump water intake device - Google Patents

Abstract

SUMMARY OF THE INVENTION: A suction pipe is vertically and coaxially placed inside a fixed cylindrical container with vertical protrusions on the outer wall. The tank embraces a floating receiving confuser with spillway slots, which is installed with the possibility of limited vertical movement by means of stops and grooves made on. the inner wall of the confuser. The tabs of the tank are placed in the grooves of the confuser. A rectangular tray is installed at the bottom of the water source with a plate obliquely attached to the side walls to form a confuser channel. The capacity is fixed on the tray, the plate - on the input and output sections of the channels, on the input - hinged, on the output - with the possibility of fixing at various heights. The inlet portion of the plate protrudes from the tray. 2 ill.

Description

The invention relates to power engineering and may find application in the construction, reconstruction and operation of pumps and pumping stations.

The aim of the invention is to increase the reliability of the device by reducing the entry of bottom pumps into the suction pipe of the pump.

In FIG. 1 shows the proposed water intake device of the pump, a longitudinal section; figure 2 is a section aa in figure 1.

The device comprises a suction pipe 1, vertically and coaxially placed inside a fixed cylindrical container 2 with a bottom 3 and vertical protrusions on the outer wall 4, and a floating receiving confuser 5 with spillways 6, which is installed with the possibility of limited vertical movement by means of stops 7, covering the container 2 , 8

and grooves 9 made on the inner walls of the confuser 5, Lugs 4 containers 2 placement in the grooves 9 of the confuser 5. The buoyancy of the receiving confuser is provided by the device float 10, mounted around the perimeter of the upper part of the confuser 5. Cylindrical tank 2 is located on a rectangular tray 11c plate T2 installed at the bottom of the source. The plate 12 is attached to the side walls of the tray 11 to form a confuser channel. The plate 12 is fixed at the input and output sections of the channels, at the input - pivotally 13 and 14, at the output - with the possibility of fixing at different heights using connections 15 and 16. and the input section protrudes from the tray.

The water intake device of the pump operates as follows.

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oh oh oh oh

00

s

The upper layer of water from the source enters through the spillway 6 through a floating receiving confuser 5 into the cavity of the cylindrical tank 2, from where it is pumped out through the suction pipe 1, while the presence of the spillways 6 makes the widow subspecies even and prevents funnel formation. the entrance to the pipe.

When the water level in the source changes, the floating confuser 5 changes its position, moving along the guides 4 between the stops 7 and 8, which ensures the intake of the lower clean upper water layer. When the water level rises higher than the possible level of raising the confuser 5 with the float 10 (by preventing them from being moved further by the restrictor 7), water overflows along the entire perimeter of the floating confuser 5, while water jets draining through the slots 6 prevent funnel formation .

A rectangular tray mounted on the bottom of the water source with a plate 12, which serves to vertically compress the flow in the tray 11, transits the passage of bottom sediments through the device and prevents its entry, and the angle of inclination of the plate 12 is achieved, the optimal flow rate of water in the tray 11. The presence of the bottom 3 of the cylindrical tank 2 does not allow the pump to suck in the pipe 1 bottom pumps, washed through the tray 11 ..

The proposed design makes it possible to carry out channel abstraction at shallow depths of water in the river without the construction of special hydraulic structures.

Claims (1)

The claims A water intake device containing a suction pipe vertically and coaxially placed inside a fixed cylindrical tank with vertical protrusions on the outer wall, and a floating receiving confuser with spillways, which is installed with the possibility of limited vertical movement using stops and grooves made on the inner wall of the confuser, and the protrusions of the container are placed in the grooves of the confuser, characterized in that, in order to increase the reliability of the device by clever the bottom of the pumps from the water flow, it is equipped with a rectangular tray mounted on the bottom of the water source with a plate obliquely attached to its side walls with the formation of a confuser channel, with the tank fixed to the tray, the plate at the inlet and outlet portions of the channels, at the inlet pivotally at the exit - with the possibility of fixing at various heights, and the input section of the plate protrudes from the tray. Phi. 2.