SU923569A1 - Water intake purification device - Google Patents

Description

(5) WATER-AND-CLEANING DEVICE

The invention relates to water intake facilities and can be used in agriculture for the purification of water from surface sources used for technical needs and irrigation. A water intake and sewage treatment plant is known, which contains a reinforced concrete cap, mounted on the bottom of the reservoir, at a depth dictated by the estimated level of the installed pump. The side walls of the well around the perimeter have entrance windows, designed to receive the necessary water flow. A frame filled with large granules of foamed polystyrene or shungizite is inserted into the box. Water flowing through the water receiving windows undergoes a rough cleaning in the floating loading layer and then flows into the suction line of the pump unit 111. The disadvantages of the known device are the low quality of the filtrate and the bulkiness of the structure. Closest to the present invention is a water intake and cleaning device, comprising a housing with a granulometrically inhomogeneous floating load and feed and discharge nozzles, a retaining grille with a nylon mesh glued to it, located above the last perforated tubing of a distribution system connected to the concentric one installed in the housing a filtrate receiving chamber, and a pump whose suction nozzle is located in chamber 2. The disadvantages of this design are the low quality of cleaning and water, and due to the one-step purification of the fence at vrdy-Don zone containing a large amount of suspended substances, and c zeemkost small filter bed, which requires frequent washings and large consumption of wash water and pump in the inevitability

cavitation mode when filter is dirty.

The purpose of the invention is to increase the filter cycle by increasing the loading load capacity.

The goal is achieved by the fact that the water intake and cleaning device, comprising a housing with layers of coarse and fine-grained floating load and supply and discharge connections, a collecting and distribution system in the form of perforated pipes, a receiving chamber and a pump concentrically located in the housing, is provided with a waterproof annular a diaphragm dividing the body into the upper and lower chambers, vertically installed waterproof partition, dividing the outer camera into the feed and. the discharge compartments, with a layer of coarse-grained load located in the upper chamber, and fine-grained - in the lower and prefabricated distribution system has vertical collectors installed in the supply and discharge compartments.

In addition, the perforated pipes of the collecting and distribution system are attached one above the other to the vertical collector, the walls of the upper chamber are perforated and the pump is located in the lower part of the receiving chamber.

FIG. 1 shows a device plan; FIG. 2 is a section A-A in FIG. FIG. 3, section B-B in FIG. one,

Water intake and cleaning device consists of a cylindrical body

1 intake cleaning device, divided by an annular diaphragm

2 on two cameras - top camera 3

and the lower chamber 4, the chambers are filled with a floating load 5- The upper chamber 3 is filled with a uniform, large-granular load with a granule size of 8-9 mm, and the lower chamber k is filled with overloading in such a way that the granule sizes decrease in the direction of movement of filtered water from 6 to 2 mm .

The outer and inner forming surfaces of the upper chamber 3 are perforated with holes.

6, the dimensions of which are smaller than the diameter of the loading granules, In the central part

housing 1 is located receiving chamber

7, limited to the internal generators of the upper and lower chambers. The receiving chamber 7 is blocked by a removable hermetic cover 8. In the lower part of the receiving chamber 7 there is a submersible pump 9 with a water-lifting pipeline 10. The water-lifting pipeline 10 is connected to the vertical collector of the collecting and distribution drainage 11 located in the supply compartment 12 of the lower chamber 3, the supply compartment 12 is separated a dividing wall 13 from the diverting compartment It, in which the collecting drainage is located with a vertical collector 15 connected to a pipeline 16 5 to drain the filtrate and supply wash water. The supply compartment 12 and the discharge compartment 1 are separated from the lower chamber 3 by perforated walls 17, which keep the filter charge 5. The vertical collector 11

0 collecting and distribution drainage is connected to the filtrate pipe 18 of the first stage of cleaning and flushing water removal, which is cut off from the water-lifting pipe 10 by the overflow valve 19, the flushing water removal pipeline is equipped with valves 20 and 21, the upper and lower chambers are equipped with nozzles 22 for injection and unloading floating boot.

0

Water intake and cleaning device works as follows.

Water enters the upper chamber 3 through the openings 6 due to the pressure difference of the liquid column above building 1 and discharge in the receiving chamber 7. The water passes in the upper chamber 3 through the floating loading 5 with a particle size of 8-9 mm and cleared of coarse suspension enters camera 7- out

0 the receiving chamber 7 water submersible pump 9 through the lifting pipe 10 enters the vertical collector 11 of the collection and distribution drainage, which distributes water

5 by filtering load 5 in the lower chamber 4. Due to the construction of vertical distribution drainage, water is filtered in the lower chamber 1 around the circumference. Passing around the circumference, the water is filtered through a floating load successively through layers with a decreasing size from 6 to 2 mm and the cleaned enters the discharge compartment 14, from

5 of which through the vertical collector 15 of the collecting drainage and the pipeline 16 removal of the filtrate to the consumer. When filtering, the valve 20 in the pipeline 18 for the mercury wiper water outlet is closed.

The washing of the filtering layers in the upper and lower chambers 3 and 4 is carried out with purified water in countercurrent to the direction of the filtering process due to the difference in levels in the tank of the water tower on the shore and the horizon of water in the river (the option is possible with a flushing pump). the chamber is carried out by supplying filtered water through pipeline 16 to a vertical collector 15. For the period of flushing, pump 9 is turned off. The check valve 19 on the water-lifting pipeline 10 prevents the flushing water from entering the receiving chamber 7. Washing of the load is performed without expanding the floating load in the direction of increasing load size and, consequently, the threshold space.

Wash water through the vertical collector 11 of the collection drain enters the pipeline 18 for flushing water with the valve open 20. After the washing of the lower chamber C is finished, the valve 20 is closed and the valve 21 is opened, creating pressure in the receiving chamber 7 which ensures the flushing of the filtering load in the upper chamber 3 and removal of contaminants into the river through the holes 6. Automation of the washing process is carried out using the KSn-IZy automatic control device.

The proposed water intake and purification device, in comparison with the known, provides an improvement in the quality of the filtrate due to a two-stage water purification and intake of the upper layer of the surface watercourse, which is less polluted by suspended substances. The grime capacity of the proposed device is increased by filling the upper chamber with a large granular filter loading of 8-9 mm and the lower chamber with loading with a decreasing grain size in the filtering direction from 6 to 2 mm. This placement of the load and the drainage collection system with vertical collectors contributes to an increase in the duration of the filter cycle and, consequently, to a reduction in the number of washes and the consumption of wash water.

Stable operation of the pump without cavitation is ensured by filling the upper chamber with a homogeneous large-granular load, since the probability of its clogging is reduced, the load resistance is negligible, which increases the reliability of operation in the discharge mode and, in addition, the water supplied from the floating contamination and coarse suspension.

The upper perforated chamber of the water intake device prevents fish from entering the receiving chamber, which also increases the reliability of the proposed device, which combines the functions of water intake with a fish protection structure for water treatment.

Claims (3)

1. Bodozaborno-cleaning device containing a housing with layers of coarse and fine-grained floating load and feed and discharge nozzles, prefabricated A perforated tube system concentrically located in the housing of the receiving chamber and pump, characterized in that, in order to increase the filtration cycle by increasing the loading capacity, it is equipped with a waterproof annular diaphragm dividing the housing into the upper and lower chambers with a vertically installed waterproof partition, the separating chamber to the supply and discharge compartments, with a layer of coarse loading located in the upper chamber and fine-grained in the lower one, and the distribution system has vertical collectors installed in the supply and discharge sections. 2. The device according to claim 1, wherein the perforated pipes of the collecting and distribution system are attached to the vertical collector at a distance one above the other. 3. The device according to claim 1, characterized in that the walls of the upper chamber are perforated