RU2353733C2 - Reservoir for control of flow of unevenly supplied polluted water - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention is related to the field of sanitary engineering. Reservoir for control of flow of unevenly supplied polluted water comprises body, supply pipeline, system for drain of controlled water flow, overflow system, partitions for separation of reservoir into sections serially filled with water and emptied in reverse order with inclined bottom and system for water transfer between sections. At that system of water transfer between sections is arranged in the form of siphons passing through mentioned partitions in their upper part. Ends of siphons are lowered to bottom of adjacent sections near these partitions. Adjacent sections are connected by additional pipelines by inlet ends passing through partitions located above siphons in sections filled with the first ones. Outlet ends of additional pipelines are installed in adjacent sections at highest sections of their bottom.

EFFECT: simplification of design and increased reliability of device operation reliability.

4 cl, 2 dwg

Description

The invention relates to a sewage system, namely, tanks for regulating the flow of contaminated water mainly rain sewer systems.

Such reservoirs are known, for example, from the following sources: M.I. Alekseev, A.M. Kurganov. Organization of discharge of surface (rain and thawed) runoff from urbanized territories (study guide), M., S-Pb, 2000, p. 188, Fig. 7.13 / 1 /; Patent No. 2131500, E03F 5/10, 1999/2 /; B.C. Dikarevsky et al. Diversion and purification of surface wastewater (textbook), L., Stroyizdat, 1990, p.116-117 / 3 /.

The closest analogue of the patented reservoir can be considered a reservoir at the source / 1 /. It contains a housing, a supply pipe, a system for diverting a regulated flow of water, an overflow system, partitions for dividing the tank into successively filled with water and discharged in the reverse order sections with an inclined bottom and a water transfer system between sections. The water transfer system between the sections is made in the form of sections mounted in the partition walls at their bottom culverts with rotary shutters and overflow edges of the partitions. The casing of the tank has a rectangular shape in plan, the partition walls are parallel, the bottom of the tank is inclined to fill the first extreme section, a supply pipe is connected to this peripheral section. The system for diverting the regulated flow of water is made in the form of a discharge pipe connected to the specified extreme section.

Contaminated water flows through the inlet pipe to the end section to be filled in first, from where the estimated part of the water is discharged through the discharge pipe for cleaning. When the flow rate of water through the inlet pipe exceeds the flow rate of water through the outlet pipe, the first section of the tank becomes inflated, and when a certain level is reached, other sections of the tank begin to be filled sequentially by flowing water through the partitions. When the flow rate of incoming contaminated water decreases, the emptying of the tank begins. Lowering the water level in the first section leads to the opening of culverts and the emptying of the sections in the reverse order of their filling with water. In this case, it is assumed that the sediment accumulated at the bottom of the tank slides under the action of a regulated flow of water to the outlet pipe.

One of the disadvantages of the known reservoir is the complexity of the design of the water transfer system between the sections, due to the presence of moving parts - rotary dampers - and the need to ensure their tight fit in the closed position to the culvert windows of the partitions.

Another disadvantage of the prototype is the unreliability of its operation due to a possible violation of the tightness of the butterfly valves to the culverts due to corrosion of the butterfly valves, particles of contaminants contained in the water between them and the culverts, and deposits on the bottom of the tank.

In addition, the required completeness of sediment removal from its bottom is not ensured in this reservoir, which is explained by the formation of deposits and the insufficient intensity of sediment flushing with water when opening culverts.

The patented technical solution is aimed at creating a reservoir with the simplest and most complete removal of sediment.

The technical result from the use of the invention is to simplify the design and increase the reliability of the water transfer system between sections, as well as to increase the completeness of removal of sediment from the bottom of the tank.

To achieve this technical result, the water transfer system between the sections is made in the form of siphons passing through the partitions in their upper part, while the ends of the siphons are lowered to the bottom of adjacent sections near the partitions (claim 1).

The presence of siphons, that is, pipes, simplifies the water transfer system between sections, since there are no rotary dampers and culverts, between which a tight connection must be ensured. The absence of these parts and replacing them with siphons increases the reliability of the water transfer system between the sections, and therefore the entire tank, since there is no possibility of a violation of the tightness of the rotary dampers to the culverts.

The implementation of siphons passing through the partitions in their upper part allows to fill the volume of each section as much as possible with water before filling the next. The location of the ends of the siphons at the bottom of adjacent sections increases the completeness of removal of sediment from the bottom of the tank, since the large energy of the water jets flowing from the ends of the siphons is used to prevent deposits when filling the sections with water and for intensive flushing, as well as transporting contaminants when emptying the sections.

According to claim 2, the adjacent sections are connected by additional pipelines passing through the partitions by the input ends located above the siphons in the sections filled first, and the output ends of the additional pipelines are located in adjacent sections at the most elevated sections of their bottom.

The installation of these pipelines is aimed at increasing the completeness of sediment removal from the bottom of the tank, since the large energy of additional water jets from the outlet ends of the pipelines is used to prevent deposits and intensive flushing and transporting contaminants to lower portions of the bottom of the tank section.

In accordance with paragraph 3 of the formula, the tank body has a round shape or a shape close to it, the partitions are located coaxially, the bottom of the tank has an inclination towards its center, the supply pipe is connected to the central section with the placement of its output end near the partition, and the output end of the supply pipe and the ends of additional pipelines and siphons farthest from the center of the tank are equipped with tangentially oriented nozzles.

This embodiment increases the completeness of sediment removal from the bottom of the tank due to the use of the hydrodynamic forces of the water jets and the creation of a rotational movement of water in the sections, which facilitates the movement of the sediment and its concentration in the lowest sections of the bottom of the sections.

To increase the completeness of sediment removal from the central section of the reservoir, the regulated water flow removal system is designed as a pump for pumping water located in the center of the reservoir and a pipeline connected to this pump (claim 4 of the formula).

Patented reservoir for controlling the flow of unevenly contaminated water is illustrated by an example, where Fig. 1 shows a plan view of this reservoir; figure 2 is the same, a section 1-1 of figure 1.

The control tank in the rainwater drainage system is filled periodically and unevenly with polluted rainwater, which leads to partial clarification of the rainwater and the loss of a significant amount of suspended solids to the bottom of the tank.

The tank contains a housing 1, which supplies contaminated water to the pipeline 2, a regulated water flow diversion system, an overflow system in the form of a tray 3 and a pipeline 4, a partition 5 for dividing the tank into successively filled with water and emptied in the reverse order sections 6, 7, 8 with an inclined bottom 9 and a water transfer system between sections, which is made in the form of siphons 10 passing through partitions 5 in the upper part of the partitions. Siphons are bent pipes of a certain diameter, the ends of which are lowered to the bottom of adjacent sections near the partition. So, for some siphons 10, one ends are lowered to the bottom of section 8, and opposite ends to the bottom of adjacent section 7; for other siphons 10, one ends reach the bottom of section 7, and opposite ends reach the bottom of adjacent section 6. From the drawing it is clear that the ends of the siphons located in section 7 are at the most elevated sections of the bottom of this section, and the opposite ends of the siphons are at the most the lower sections of the bottom of the adjacent section 8. Similarly, one ends of the siphons are located at the most elevated sections of the bottom of the section 7, and the opposite ends are at the lowest sections of the adjacent section 6.

Adjacent sections 6, 7 and 7, 8 are connected by additional pipelines 11 passing through the partitions 5 with their inlet ends. The inlet ends of the pipelines 11 are located above the siphons in the sections filled first, that is, the inlet ends are communicated respectively with section 6 and section 7. The outlet ends of the additional pipelines 11 are located in adjacent sections at the most elevated sections of their bottom: in section 7, adjacent section 6 , and in section 8, adjacent section 7.

The housing 1 of the tank has a circular shape in plan. Possible shape of the body, close to the circle, for example ellipse. Partitions 5 are located coaxially with the formation of the central section 6 and the annular sections 7, 8. Sections with an inclined bottom 9 form the bottom of the tank with an inclination towards its center. The supply pipe 2 is connected to the central section, its output end is located near the partition separating the central section 6 and section 7. The output end of the supply pipe 2, the output ends of the siphons 10 and additional pipelines 11, the farthest in the sections from the center of the tank, are equipped with tangentially oriented nozzles 12, 13 and 14.

The system for diverting the regulated flow of water is made in the form of a pump 15 for pumping out water located in the center of the tank and the pipeline 16 connected to this pump.

The tank works as follows. Contaminated water (for example, rainwater) through the inlet pipe 2 enters the central section 6, filling its volume. Under the action of a tangentially oriented nozzle 12 of the outlet end of the pipeline 2, a rotational movement is communicated to the water in the central section, which facilitates the movement of suspended particles to the center of the tank. Under the influence of the hydrodynamic forces of the jets of water flowing from this nozzle, agitation and prevention of deposits at the bottom of the section occur. The described processes are positively affected by the placement of the output end of the supply pipe near the partition 5.

Simultaneously with the flow of water into the tank, it is pumped out by the pump 15 from the center of the tank and is discharged from it through the pipe 16.

If the central section is filled to the level necessary for siphons to operate, excess water is transferred via siphons from the central section 6 to section 7. Thanks to the tangentially oriented nozzles 13 of the outlet ends of the siphons, a rotational movement is transmitted to the water in section 7, which facilitates the movement of suspended particles to the lowest areas section 7, that is, to the partition between sections 7 and 6, where the nozzles of the outlet ends of the siphons are located. In addition, the hydrodynamic forces of the jets of water flowing from the nozzles of the outlet ends of the siphons stir up and prevent deposits.

When the central section is filled with water above the siphons, water enters the inlet ends of the additional pipelines 11 and drains from a considerable height to the bottom of the section 7, flowing out from the tangentially oriented nozzles 14 of the outlet ends of the pipelines 11. These nozzles help to organize the rotational movement of water in section 7, stir up and prevent deposits, provide intensive flushing and forced transportation of contaminants to the lower sections of the bottom of the section 7 of the tank, that is, to the partition separating sections 7 and 6, where siphon ends are displaced.

Subsequently, when filling section 7 to the level necessary for siphons to operate between sections 7 and 8, excess water is transferred via siphons from section 7 to section 8 of the tank with processes similar to those described when transferring water between sections 6 and 7.

When rains of high intensity and duration are filled and all sections of the tank are filled with water, water is discharged from the tank through tray 3 and pipeline 4 of the overflow system.

When reducing the flow of rainwater through the pipeline 2 with the working drain system 15, 16, the emptying of the tank begins. Lowering the water level in section 6 leads to the cessation of its first flow into the additional pipelines 10, and subsequently to the transfer of water between the sections by siphons in the opposite direction: from section 8 to section 7, from section 7 to the central section 6. The section is completely emptied first 8, then section 7, and lastly, the central section 6. During the reverse operation of siphons, water with particles of contaminants is taken from the lowest sections of the section, where pollution is washed off and transported when the water rotates into the section x and the hydrodynamic effects of 11 streams of water flowing from pipelines. From the peripheral sections 8 and 7, water is transferred by siphons sequentially to the central section. From the center of the tank, water is discharged using a regulated water flow diversion system.

Thus, a tank was created to control the flow of unevenly contaminated water of a simple design and reliable in operation, in which a more complete removal of sediment from the bottom of the tank is achieved. The latter is connected, firstly, with the initiation of the rotational movement of water in the sections, which concentrates pollution in the most lowered sections of the bottom of the sections. Secondly, the reservoir creates a hydrodynamic effect of water streams flowing from pipelines and siphons on the bottom of the sections, which prevents deposits and activates the transport of contaminants in the process of filling the sections with water towards the lower sections of the sections. Thirdly, when emptying the tank, the contaminants previously concentrated in the lowest sections of the sections are vigorously transferred by siphons to the system for diverting the regulated flow of water.

Claims (4)

1. A tank for controlling the flow of unevenly contaminated water, comprising a housing, a supply pipe, a system for diverting a regulated flow of water, an overflow system, partitions for dividing the tank into successively filled with water and emptied in the reverse order sections with an inclined bottom and a water transfer system between sections, characterized in that the water transfer system between the sections is made in the form of siphons passing through these partitions in their upper part, while the ends of the siphons are omitted s to the bottom of adjacent sections near these partitions, adjacent sections are connected by additional pipelines passing through the partitions by the input ends located above the siphons in the sections filled first, and the output ends of the additional pipelines are located in adjacent sections at the most elevated sections of their bottom, and the tank body round or close to its shape, the partitions are located coaxially, the bottom of the tank has an inclination towards its center. 2. The tank according to claim 1, characterized in that the supply pipe is connected to the Central section with the placement of its output end near the partition. 3. The tank according to claim 1 or 2, characterized in that the output end of the supply pipe and the ends of the siphons and additional pipelines farthest from the center of the tank are equipped with tangentially oriented nozzles. 4. The tank according to claim 1 or 2, characterized in that the system for diverting the regulated flow of water is made in the form of a pump for pumping water, located in the center of the tank and the pipeline associated with this pump.

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