RU160714U1 - DEVICE FOR CLEANING SURFACE WASTE WATER PLACED IN THE SEWER WELL - Google Patents

Abstract

1. A device for cleaning surface wastewater from sand, placed in a sewer well, consisting of a receiving cylinder with holes for water passage, an internal drainage surface and a compartment for collecting sand, characterized in that the internal drainage surface is a fender cover in the form cone, the top of which is located relative to its base in a direction opposite to the direction of the flow of water entering the bump cover, and the sand collection compartment is under the bump cover it is hydraulically connected to the space above the baffle plate by means of an annular channel formed by the inner wall of the baffle plate and the outer edge of the base of the baffle plate, the holes for the passage of water are located on the side wall of the baffle plate above the level of the base of the conical bump plate. 2 . The device according to claim 1, characterized in that the intake cylinder has in the upper part of the eyelet for slinging. The device according to claim 1, characterized in that in the upper part of the intake cylinder above the conical cover-chipper installed a basket for collecting garbage. The device according to claim 1, characterized in that on the inner surface of the intake cylinder above the holes for the passage of water there is an annular shelf, one end of which is rigidly connected to the inner surface of the intake cylinder, and the other end is directed towards the conical baffle cover at an acute angle to the direction the movement of water to the surface of the cap-bump in such a way that it reaches the level of water that merges into the holes for the passage of water, but does not reach the surface

Description

Technical field

The utility model relates to the field of surface wastewater treatment, and in particular to devices for their treatment, located in sewer wells under the storm water inlet.

State of the art

A device for treating surface wastewater in the form of a filter cartridge is an open glass with impermeable side walls and a permeable bottom, inside of which there is a filter material for removing suspended solids (utility model patent No. 148363, B01D 27/00, publ. 10.12 .2014).

The disadvantage of this device is the small resource of its work on suspended solids and sand, due to the fact that the filter material inside the device is quickly clogged with sand, which leads to the termination of the passage of purified water through it and requires the replacement of the filter material or the entire filter cartridge.

A device for receiving and treating surface water is known, which is a blind removable intake cylinder installed in a sewer well, inside of which there is an internal drainage cylinder, which forms a pocket for collecting sand in the lower part of the device, which is also a hydraulic shutter, and the internal drainage cylinder contains parts of the slot-hole for the passage of water (utility model patent No. 133853, E03F 5/04, E03F 5/14, publ. 10.27.2013).

The disadvantage of this device is the limited capacity of the pocket for sand and the clogging of the slots-holes for the passage of water with sand as it accumulates in the pocket, which also contributes to a decrease in the performance of the device for purified water. All this leads to the need for frequent removal of sand from the pocket, which can only be done by removing the device from the sewer well, that is, the termination of its continuous operation, and therefore ultimately leads to a decrease in the life of the device.

This technical solution is the closest in combination of essential features to the claimed utility model and is taken as a prototype.

Utility Model Essence

The objective of the claimed utility model is to develop a device design that provides the best among known technological solutions for surface wastewater treatment for technological purposes, as well as their discharge into water and fishery ponds or sewers.

The technical result of the claimed utility model is to increase the resource of continuous operation of the device without removing it from the sewer well when cleaning surface water from sand. Hereinafter, the operating life of the claimed device is understood to mean: in the case of supplying water to the device at a constant speed, the operating time of the device between its commissioning and the moment when the device ceases to purify water with regulated efficiency at a regulated capacity, or in the case of supply to the device water with variable capacity - the volume of purified water during the time between its commissioning and the moment when the device ceases to purify water with a regulated efficiency Nosta with regulated performance.

The technical result of the claimed utility model is achieved by the fact that the device for cleaning surface wastewater from sand, placed in the sewer well, consists of a water intake cylinder with holes for water passage, an internal drainage surface and a compartment for collecting sand, and the internal drainage surface is a cover a cone-shaped chipper, the top of which is located relative to its base in a direction opposite to the direction of the flow of water entering the chipper cover and the sand collection compartment is located under the bump cover and is hydraulically connected to the space above the bump cover using an annular channel formed by the inner wall of the intake cylinder and the outer edge of the base of the conical bumper cover, with holes for water passage located on the side wall of the intake cylinder above the level of the base of the conical bump cover.

In one embodiment, the intake cylinder has at the top of the eyelet for slinging.

In another embodiment, in the upper part of the intake cylinder above the conical cover-chipper installed a basket for collecting garbage.

In another embodiment, an annular shelf is located on the inner surface of the water intake cylinder above the water passage openings, one end of which is rigidly connected to the internal surface of the water intake cylinder, and the other end is directed towards the conical baffle cap at an acute angle to the direction of water movement to the surface of the cap -the chipper in such a way that it reaches the level of water that merges into the holes for the passage of water, but does not reach the surface of the conical cap-chipper.

In another embodiment, the conical bump cover is removable.

In yet another embodiment, a hole is located at the top of the conical bumper cover.

In yet another embodiment, a hole closed by a removable cover is located at the top of the conical bumper cover.

In another embodiment, a pipeline is located at the top of the conical cover-chipper, one end of which is located outside the chipper-cap, and the other end is passed into the compartment for collecting sand to a level that reaches its bottom.

In another embodiment, a pipeline is located at the top of the conical bumper cover, one end of which is located outside the bump cover and is closed with a removable plug, and the other end is passed into the sand collection compartment to a level that reaches its bottom.

Brief Description of the Drawings

The utility model is illustrated by the following drawings:

FIG. 1 One of the preferred embodiments of the utility model in the form of a device placed in a sewer well on a support ring fixed in the wall of the well.

FIG. 2 Another of the preferred embodiments of the utility model in the form of a device placed in a sewer well on a support installed at the bottom of the well.

FIG. 3 An enlarged image of part A of the device shown in Fig 2., with an annular shelf of a flat profile.

FIG. 4 An enlarged view of part A of the device of FIG. 2, with an annular shelf of a broken L-shaped profile.

FIG. 5 An enlarged view of part A of the device shown in FIG. 2, with an annular shelf of a rounded profile.

It should be noted that the accompanying drawings illustrate only a few of the most preferred embodiments of the utility model and cannot be construed as limiting the content of the utility model, which also includes other embodiments.

Utility Model Implementation

The described utility model (in the form of a filter cartridge) can be implemented in various ways.

In one of the preferred embodiments (as follows from the drawing shown in Fig. 1), the filter cartridge 1 is installed in the sewer well 2 on the support ring 3 using a sealed support flange 4 of the filter cartridge 1 connected to it.

The untreated surface (storm) runoff enters the well 2 and directly into the intake cylinder 5 of the filter cartridge 1, through the drainage grid 6 of the manhole 7 of the well.

Inside the water intake cylinder 5 of the filter cartridge 1, the raw water from the sand falls onto the conical bump cover 8, where sand particles are separated from it. Sand particles, colliding with the drainage surface of the conical baffle cover 8, are deposited on it and washed off with a water flow, after which they enter the compartment 10 for collection through the annular channel 9 formed by the inner wall of the intake cylinder 5 and the outer edge of the base of the conical baffle cover 8 sand, where they accumulate in the form of sediment 11. Purified water from sand particles through holes 12 for the passage of water leaves the filter cartridge 1 and through its outer cylindrical surface enters the bottom of the well 2 into the sewer net for the removal of purified water, which enters the well 2 through the pipe 13 and is discharged from it through the pipe 14.

To remove sand sediment 11 from compartment 10 for collecting it, there is a hatch 15 in the lower part of the filter cartridge (on the wall of compartment 10).

To sling the filter cartridge 1 when it is placed in the well 2 and removing from it are the eyes 16.

In another of the preferred embodiments of the utility model (as follows from the drawing shown in Fig. 2), the filter cartridge 1 is placed in the sewer well 2 on a support 17 mounted on the bottom of the well.

The crude surface drain is fed into the well 2 directly into the intake cylinder 5 of the filter cartridge 1 through the drainage grid 6 of the manhole 7 of the well.

Inside the intake cylinder 5 of the filter cartridge 1, sand-free water first passes through the grid (grate) of the garbage collection basket 18 and then falls onto the conical bump cover 8, where sand particles are separated from it. Additionally, the sand particles are also separated on the annular shelf 19, connected at one end to the inner surface of the intake cylinder 5, and the other end directed towards the conical baffle cover 8. Having settled on them, the sand particles are washed off by a stream of water (entering the bump cover 8 and the ring shelf 19) down and through the annular channel 9 enter the compartment 10 for collecting sand. Purified water from sand particles through holes 12 for water passage leaves the filter cartridge 1 and, on its outer cylindrical surface, enters the bottom of the well 2 into the sewer network to drain purified water, which enters the well 2 through pipeline 13 and is discharged from it through pipeline 14 .

To sling the filter cartridge 1 when it is placed in the well 2 and removing from it are the eyes 16.

In FIG. 3 is an enlarged image of a structural member A, including a portion of a conical baffle cover 8, an annular shelf 19, an annular channel 9 and an opening for water passage 12. Sand particles 20 (their path is shown by dashed arrows) are deposited on the baffle cover 8 and the annular shelf 19 and through the annular channel 9 enters the compartment 10 for collecting sand.

In FIG. 4 shows an image of element A (similar to FIG. 3), with an annular shelf 19 having a broken L-shaped profile, and FIG. 5 - with an annular shelf 19 having a rounded profile. Common to all these designs is that the free end of these shelves is directed towards the conical cover of the chipper 8 at an acute angle to the direction of movement of water to the surface of the cap of the chipper and reaches the level of water that merges into the holes for water passage, but does not reach the surface of the conical chipper covers.

As sand is removed from the water in known devices (including in the prototype), due to the accumulation of sand in the pores of the filter material or in pockets of a filter type limited in volume, a dense medium is formed that blocks the passage of water through the device with a given (standard) performance. The cleaning device does not cope with the given water flow and there is flooding of the well and the surrounding area with water, which indicates the end of the life of the device, and requires its removal from the well.

The inventive utility model eliminates this drawback due to the fact that the internal drainage surface is a cone-shaped cover, the top of which is located relative to its base in the direction opposite to the direction of the water flow entering the striker-cover, and the sand collecting container is under the chipper cover and is hydraulically connected to the space above the chipper cover using an annular channel formed by the inner wall of the intake cylinder and the outer edge the base of the conical cap-chipper, and the holes for the passage of water are located on the side wall of the intake cylinder above the level of the base of the conical cap-chipper.

Particles of sand falling through a storm water inlet into a well reach a water discharge surface in the form of a conical baffle-cap located at its apex to meet the flow of water and hitting it, quench their speed and change their trajectory. Large particles of sand can bounce off the surface of the conical baffle cap and fly off to the inner wall of the intake cylinder and back until they reach the surface of the water mirror in the annular channel around the conical baffle cap. Getting into the annular channel, these particles, due to their mass and, as a consequence, the high settling rate, are not captured by the flow of water discharged through the holes for water passage, but fall through this channel down and settle to the bottom of the sand collection compartment, which is located under conical chipper cover. Smaller particles of sand, falling together with drops and trickles of water on the conical surface of the chipper cover, are inhibited by it and, being close to the surface of this cover, are washed off down its surface by a stream of water flowing down this cover. Reaching the water mirrors in the annular channel around the conical bump cover, they continue to slide down the surface of the bump cover and settle to the bottom of the sand collection compartment. At the same time, fine sand practically does not get into the hole for water passage due to the fact that it moves in an area close to the surface of the conical cover of the chipper, the lower end of which (base) is under a layer of water, which ensures sand particles uniformly and slowly descend down into the compartment for collecting sand in the absence of turbulent capture by their flow near the holes for water passage.

The design of the internal drainage surface in the form of a cone, the top of which is located relative to its base in the direction opposite to the direction of the flow of water entering the chipper cover, contributes to the achievement of the technical result, since the shape of the cone provides uniform sand collection across the cross section (i.e., the cross section of the intake cylinder is used to the maximum devices).

The presence in the claimed utility model of a compartment for collecting sand, located under the chipper cover and hydraulically connected to the space above the chipper cover using an annular channel, provides not only the collection of settling sand particles, but also their long-term storage, which certainly increases the life of the device, since it allows for a long time not to remove the device from the sewer well, that is, not to interrupt its ability to clean or pass through it the purified water.

The presence of lifting eyes in the claimed utility model in the upper part of the intake cylinder also contributes to the achievement of a technical result, since it allows using the loading and unloading equipment to install the claimed utility model in the sewer well most precisely under the spillway of the sewer manhole, which leads to a more complete collection of sand. Otherwise (if the device is not installed in the well relative to the spill grate), part of the wastewater (together with sand) will pass by the device (of the claimed utility model) and produce pollution at the outlet, which, from the point of view of the actual operation of the filter cartridge, will be qualified as loss of cleaning ability by the device in the sand, that is, completion (end) of the resource of its work.

The presence of a waste collection basket in the upper part of the intake cylinder above the conical cover-chipper also contributes to the achievement of a useful model because the debris (suspended and floating particles larger in size than sand) gets into the well through the drainage grate and, accordingly, , in the water intake cylinder, the holes for water passage and the annular channel between the inner wall of the water intake cylinder and the outer edge of the base of the conical bumper cover are clogged, which leads to a decrease in throughput capacity of purified water unit, that is indicative of the end of its service life. In addition, the presence of large particles of debris (compared with sand particles) on the surface of the conical cover-chipper makes it impossible for the smooth surface of the cone to precipitate and collect sand, which leads to its penetration through the holes for water passage.

The presence of a basket for collecting garbage in front of the conical cover-chipper allows you to collect this garbage in isolation and remove it from the well without removing the device for cleaning sand from the well, that is, without interrupting the resource of its work.

The presence on the inner surface of the intake cylinder above the water passage openings of an annular shelf, one end of which is rigidly connected to the inner surface of the intake cylinder and the other end is directed towards the conical baffle cover at an acute angle to the direction of water movement to the surface of the baffle cover so that reaches the level of water merging into the holes for the passage of water, but does not reach the surface of the conical bump cover, also contributes to the achievement of a technical result by a useful model This, since it allows more efficient separation of sand from water, thereby preventing sand particles from entering the treated effluent, which would indicate the end of the life of the device.

From FIG. 3, 4 and 5 it can be seen that the presence of an annular shelf of a different profile allows collecting sand particles on it, which without it would fall directly into the annular channel in the immediate vicinity of the water passage openings and, being captured by the stream of water flowing through them, would slip into runoff without cleaning, which would lead to the appearance of sand after the inventive device, that is, would indicate a decrease in its cleaning ability to retain sand, that is, the completion of the resource of its work. With the presence of an annular shelf, this drawback is eliminated, since the area of the annular channel near the water passage openings is closed from direct particles, that is, their capture does not occur, and the device does not show signs of termination of the cleaning ability, i.e., the end of the resource. If the annular shelf is located at a right or obtuse angle to the direction of water movement to the surface of the chipper cover, the above effect will not take place, and sand will be able to penetrate the holes of the intake cylinder.

The presence of a removable conical bump cover allows you to periodically remove sand accumulated in it from the sand collection compartment without removing devices from the sewer well, which significantly increases the resource of continuous operation of the utility model.

The presence of a hole on the top of the conical bumper cover also contributes to the achievement of a technical result by the useful model, since it allows to periodically remove this accumulated sand from the sand collection compartment without removing the device from the sewer well, which significantly increases the useful life of the utility model.

The presence of a removable cover that covers this hole during operation of the device prevents the ingress of a certain amount of water, which, flowing from the sand collection compartment into the annular channel, can create a counter flow of water (towards the particles of sand deposited in it) and lead to them entrainment through openings for the passage of water, which will indicate a deterioration in cleaning and the completion of the life of the device.

The presence of a pipeline at the top of the conical cover-chipper, one end of which is located outside the chipper-cap, and the other end is passed into the sand compartment to a level that reaches its bottom, also contributes to the achievement of a useful model of the technical result, since the pipeline allows periodically using the hydraulic transport procedure remove sand from the compartment to collect it, without removing the device from the sewer well, which increases the resource of its continuous operation.

The presence of a removable plug on the pipe located outside the bump cover prevents some water from entering it, which, flowing from the sand collection compartment into the annular channel, can create a counter flow of water (towards the particles of sand deposited in it) and lead to their removal through the holes for the passage of water, which will indicate a deterioration in cleaning and the end of the life of the device.

Claims (9)

1. A device for cleaning surface wastewater from sand, placed in a sewer well, consisting of a receiving cylinder with holes for water passage, an internal drainage surface and a compartment for collecting sand, characterized in that the internal drainage surface is a fender cover in the form cone, the top of which is located relative to its base in a direction opposite to the direction of the flow of water entering the bump cover, and the sand collection compartment is under the bump cover ICOM and fluidly connected with the space above the lid-baffle by means of the annular channel formed by the inner wall of the water intake of the cylinder and the outer edge of the base of the cone-deflector cap, wherein the water passage openings are located on the side wall of the cylinder above the level of water intake location-base conical deflector cover. 2. The device according to claim 1, characterized in that the intake cylinder has in the upper part of the eyelet for slinging. 3. The device according to claim 1, characterized in that in the upper part of the intake cylinder above the conical cover-chipper installed basket for collecting garbage. 4. The device according to claim 1, characterized in that on the inner surface of the intake cylinder above the holes for water passage there is an annular shelf, one end of which is rigidly connected to the inner surface of the intake cylinder, and the other end is directed towards the conical baffle cover at an acute angle to the direction of movement of water to the surface of the chipper cover in such a way that it reaches the level of water merging into the holes for water passage, but does not reach the surface of the conical chipper cover. 5. The device according to claim 1, characterized in that the conical cover-chipper made removable. 6. The device according to claim 1, characterized in that a hole is located at the top of the conical cover-bump. 7. The device according to claim 1, characterized in that at the top of the conical cap-chipper is a pipeline, one end of which is located outside the cap-chipper, and the other end is passed into the compartment for collecting sand to a level that reaches its bottom. 8. The device according to claim 6, characterized in that the hole is closed by a removable cover. 9. The device according to claim 7, characterized in that one end of the pipeline located outside the bump cover is closed with a removable plug.

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