SU1788136A1 - Water intake device - Google Patents

Description

The invention relates to the field of hydraulic engineering and can be used in water supply systems, as well as for the discharge of clarified water from sedimentation tanks, sludge storages, tailings, ash dumps, etc.

Known fish protection device of the water intake head, containing a hollow cylindrical body mounted on a vertical pipe with a culvert with a waterproof side surface and water-permeable screens at the ends. Moreover, the device is performed in two versions:

- the housing is rigidly attached to the pipe, and the plates are mounted with the possibility of movement along the pipe,

- the housing is mounted to move along the nozzle, and the plates are rigidly attached to the nozzle.

The disadvantage of this device is the inability to ensure uniform water intake when the water level changes.

A well is known for discharging clarified water from a sludge section, including a vertical collector pipe with windows in the walls, valves placed in front of the windows on the outside of the collector pipe, hollow elements connected to the upper 'edges of the valves by rods in the form of a measured rail.

The hollow element can be moved and fixed along the rail. The shutter is made in the form of a gate moving in vertical directions, and the manifold pipe has persistent tides located below each window, locking and locking tides located above each window, and each gate is equipped with a latch.

1788136 A1

The disadvantage of this device is the inability to ensure a constant and uniform water intake when the water level changes, as well as the complexity determined by the presence of a large number of spring locks, latches, which significantly reduces the reliability of the device.

The aim of the invention is to increase the reliability of operation of the device while providing the ability to control the flow of water and increase the degree of water purification. The goal is achieved in that the device is equipped with stops and a water intake chamber with water intake windows. In addition, the intake chamber is connected to the float and is arranged to move along the manifold pipe.

The stops are mounted on the collector pipe on both sides of the holes and serve to limit the movement of the intake chamber along the collector pipe. In addition, the openings on the collector pipe are made in the form of vertical slots placed at the same level, which eliminates the entry of debris into the collector pipe.

The design of the intake chamber provides for the presence of blind end surfaces, and the intake windows are located along the perimeter of the side surface of the chamber at the same level and are designed to allow maximum water flow at a constant depth of the chamber. Above and below the intake windows there are blind parts of the side surface of the intake chamber. The lower blind part of the lateral surface forms a settling zone with the lower end of the chamber.

Throughout the entire range of changes in the water level, flooded water intake is provided through the intake windows, which prevents contaminants floating on the water surface from indicating to the intake structure.

The water intake chamber is connected to the float by means of a screw device, which ensures the movement of the ring gate and the ring float relative to the receiving windows, due to which the throughput of the water intake device is regulated, as well as the depth of the receiving windows is changed relative to the water level in the source (sump).

Haha. 1 shows the proposed device, a longitudinal section: in FIG. 2, section AA in FIG. 1.

The device includes a vertical pipe collector 1 with restrictive stops upper 1 and lower 3, between which along the perimeter of the pipe at the same level there are receiving slit-like windows 4.

The collector pipe 1 is a guide for the intake chamber 5, which moves in a vertical plane under the influence of a float having an annular shape.

On the intake chamber 5 are placed around the perimeter of the receiving window 7, located at the same level below the upper end of the chamber.

At the upper end of the intake chamber 5, a flow regulator 8 is placed, consisting of a screw fixed thereto with a steering wheel 9, a nut 10 mounted on an annular slide 11, which can lower or rise relative to the intake chamber, thereby achieving partial or complete overlap of the receiving windows 7 and the corresponding regulation of the flow rate of water passed through the intake device. On the inner surface of the upper end of the intake chamber and on the upper stop of the manifold pipe, the contacts of the limit switches 12 are located, which ensure the pump is turned off or the maximum permissible decrease in the water level in the source (sump) is signaled.

The screw connection of the annular gate 11 and the annular float 6 allows you to simultaneously control the flow rate as well as the depth from the water level of the intake windows 7 of the intake chamber depending on the thickness of the layer of floating contaminants.

The device operates as follows.

At a normal level of water in the water source, the float 6, rigidly connected using a screw connection to the gate 11, holds at a predetermined level a water intake chamber 5 that can move along the vertical manifold pipe 1,

At the same time, the intake windows 7 of the intake chamber 5 are immersed in water, which excludes the possibility of water intake from the surface and prevents contaminants floating on the water intake (oil film, leaves, litter, etc.). From the water intake chamber, water through holes in the form of slots enters a vertical collector pipe 1, through which it is directed either by gravity or by means of a pump to the consumer.

When the water level in the source rises, the float 6 entrains a water intake chamber 5, the movement of which upward along the collector pipe 1 is limited by the lower stop 3, which is located below the level of the window-slots 4 of the collector pipe 1,

When the water level in the source decreases, the water intake chamber moves down the collector pipe. The maximum lower position of the camera is fixed by the upper stop 2, located above the receiving windows of the pipe-collector 1. 10

The presence of a blind wall around the perimeter of the intake chamber allows avoiding bottom sediment and other contaminants entering the intake windows of the intake chamber even with a maximum water level of 15. The amount of water entering the intake chamber is regulated by the flow regulator 8 by means of a screw 9 and a nut 10 fixedly mounted on the annular gate, and due to the 20 movement of the gate in a vertical plane relative to the intake chamber, partial or complete overlap of the intake windows 7 is provided.

Thus, in the proposed device, compared with the base object, there are such advantages as compactness and simplicity of design, high reliability of the water intake device at a variable water level 30 due to the presence of a freely moving water intake chamber; the exclusion of both floating surface contaminants and bottom sludge from entering the intake device, as well as the possibility of preliminary sedimentation of water due to the special placement of the intake windows around the perimeter of the intake chamber; the ability to control the water flow rate, as well as to deepen 40 water intake windows from the water surface ¹ depending on the size of its surface contamination due to the use of an annular shutter fixedly connected to the annular float, moved by means of a screw device.

Claims (4)

Claim 1. A water intake device, including a vertical manifold pipe with holes around the perimeter of its side surface and a shutter in the form of a gate connected to the float, characterized in that, in order to increase work efficiency, it is equipped with stops and a water intake chamber with water intake windows, while the intake chamber is connected to the float and is arranged to move along the collector pipe, and the stops are fixed to the collector pipe on both sides of the holes and are located inside the intake chamber. 2. The device according to claim 1, with the fact that the holes on the collector pipe are made in the form of vertical slots placed at the same level. 3. The device according to claim 1, with the fact that the intake chamber has blind end surfaces, and the intake windows are located along the perimeter of its side surface at the same level, while above and below the intake windows there are deaf parts of the side surface of the intake chamber, the lower blind part of the side surface forming a settling zone with a lower end of the chamber. 4. The device pop. 1, characterized in that the connection of the water intake chamber with the float is made in the form of a screw device, while the gate and the float have an annular shape, and the water intake chamber with windows is movable relative to the gate connected to the float by means of a screw device .