RU2723704C1 - Storm-water well - Google Patents

Abstract

FIELD: sewage devices.SUBSTANCE: invention relates to the field of sewage devices. Storm-watering well comprises housing (1), trash-holding grate (2) fixed on it in the upper part of the housing, an inclined guide plate (4) installed inside housing (1) directly under trash-holding grate (2), vertical partition (5) separating the housing on water receiving (6) and settling (7) chambers, water discharge hole (9) made in partition (5) and communicating with water intake (6) and settling (7) chambers, water discharge pipe (11). Well is additionally equipped with garbage chute (12) located parallel to the side wall of housing (1) and adjoining its upper face to the lower end face of trash-holding grate (2). Guide plate (4) is waterproof. trash-holding grate (2) is hingedly fixed relative to upper end face of housing (1). On the inner surface side, before outlet hole (9), on the front wall screen (10) is installed. Trash-holding grate (2) is multi-section, wherein sections (2 and 3) are arranged in series one after another so that each next section with hinge is installed in one plane of slope and is made in form of vibrode, with the possibility of their ends placement above the vertical face of the vertical partition wall (5) separating housing (1) into water receiving (6) and settling (7) chambers, and with the possibility of vertical movement of the free end of the upper grate, and fastening of the next grate with the hinge on sloping board (13) made of upper (14) and lower (15) parts, having posts (20 and 21) in the form of guide adjusting bolts, provided with springs (18 and 19), connected to corners of sloping board (13). Upper face of partition wall is made with outlet hole (22) between upper (14) and lower (15) parts of sloping board (13).EFFECT: higher reliability of operation, simplification of operation and automatic self-washing of settling chamber in conditions of variable water level above trash-holding grate, with simultaneous reduction of its impurity in end part.4 cl, 1 dwg

Description

The invention relates to sedimentation tanks, stormwater and other devices intended for drainage of storm water.

Known for the inlet well, including a housing, a trash-holding grate installed therein, located in the upper part of the casing, an inclined guide plate mounted inside the casing directly below the trash-holding grating, a vertical partition dividing the casing into a water intake and settling chamber, a drainage hole made by a partition and communicating with water intake and settling chambers, a removable dirt collector and a drain pipe, the well is equipped with a waste tray located parallel to the side wall of the housing and adjoining its upper face to the lower end face of the dirt trap, the guide plate and the dirt collector are made waterproof, and the dust trap is hinged relative to the upper hinge enclosures (Patent RU No. 2095525, E03F 5/14 of 11/11/1997).

A disadvantage of the known device is the difficulty in operating a removable dirt collector, the design of which does not provide for captures to extract it. In addition, the trash screen is one continuous structure in length, bulky, and its location of the angle of inclination has a limited range of inclination in the presence of large and small volumes of storm water carrying debris, large sediments and soil particles. The trash-holding lattice is not completely free of sediment in full length, which means that the load on its rods increases, they bend down. If the flow rate decreases sharply, then the sediments almost to the end of the trash holding lattice, are hindered by the movement and fill it up, the efficiency and reliability decreases, since the lattice itself lies stationary in one plane, i.e. in conditions of a variable water level above the grate, it is not coping with the removal of large stone and floating debris to remove the waste tray. Another disadvantage is that the falling velocity water jet constantly stirs up fine sediment fractions in a removable dirt collector in which it is overfilled, then the turbulent flow enters the water intake chamber, which means that it is necessary to make the well deep enough, which makes construction and operation more expensive as a whole. Thus, it does not have the possibility of communicating the trash lattice to provide it with vibrations of the lattice rods (vibration actions) located along the entire length of the well, as well as the ability to change its optimal angle of inclination and does not take into account the hydrodynamic load of oscillatory phenomena when the flow moves towards the settling chamber, splashes and fountains eroding the walls of the chamber, resulting in emergency situations.

A storm water well is known, including a housing, a trash-holding grate mounted on it, located in the upper part of the casing, an inclined guide plate mounted inside the casing directly below the trash-holding grating, a vertical partition dividing the casing into a water intake and settling chamber, a drainage hole made in the partition and communicating with water intake and settling chambers, a removable dirt collector and a drain pipe, the well is equipped with a waste tray located parallel to the side wall of the body and adjacent its upper face to the lower end face of the trash guard, and the trash guard is pivotally fixed relative to the upper end face of the body, while the removable dirt collector is made the dirt collector rod and having in the upper part a bend in the form of a ring for ease of grip and lifting a removable dirt collector (Patent RU No. 153127, E03F 5/14 of 07/10/2015).

A disadvantage of the known device is the ingress of contaminants from the dirt collector into the storm sewer, the inconvenience of unloading the accumulated sediment from the dirt collector. Thus, the high-speed jet winds small sediments in a removable dirt collector and they enter the storm sewer, settle to the bottom and clog it in length, which means that it is necessary to make the well deep enough, which makes construction and operation more expensive as a whole.

In addition, the design of the trash holding grid is one continuous in length and rather bulky and heavy, and its location of the slope angle has a limited slope range in the presence of large and small volumes of storm water carrying debris, large sediments and soil particles. The trash-holding lattice is completely solid in length and is not exempted from sediment, which means that the load on its rods increases, they begin to bend down. If the flow rate decreases sharply, then the sediments almost to the end of the trash holding lattice are slowed down and fill up, its efficiency and reliability are reduced, since the lattice itself lies stationary (motionless), i.e. in conditions of a variable water level above the grate, it can not cope with the removal of large stone and debris for discharge into the waste tray. At the same time, it does not have the ability to communicate to the trash holding lattice to provide it with vibrations of the rods (vibration actions) located along the entire length of the well, and also the ability to change its optimal angle of inclination.

The closest analogue (prototype) is a sewage well containing a housing, a trash-holding grate mounted on it, located on the upper part of the casing, an inclined guide plate installed inside the casing directly below the trash-holding grating, a vertical partition dividing the casing into a water intake and settling chamber, a drainage hole made in the partition and connected with the intake and settling chambers, a removable dirt collector and a drain pipe, the well is equipped with a waste tray located parallel to the side wall of the housing and adjacent its upper face to the lower end face of the trash guard, and the guide plate and the dirt collector are waterproof, and the grill is pivotally fixed relative to the upper end face of the housing, the removable dirt collector is made in the form of a container, while it has an outlet in the middle of the front wall, outlet openings in the upper part a single wall and rigging holes in the upper parts of the side walls, from the side of the inner surface, a screen is installed in front of the outlet on the front wall (PM. RU No. 168629, E03F 5/14 of 02/13/2017).

A disadvantage of the known device is that it is necessary to periodically raise the dirt collector (it has a large weight) due to the hooking with rigging holes with a special lifting mechanism, which depends on its filling of the accumulated sediment. There is no self-washing of the settling chamber from the accumulated sludge, thereby overfilling the dirt collector, which means it enters through a communicating spillway into the storm sewer and is blocked in length. In addition, the design of the trash screen is solid throughout and cumbersome, and its location of the slope has a limited slope in the presence of large and small volumes of storm water carrying debris, large sediments and soil particles. The trash-holding lattice can bend in length due to its large size and is not exempted from sediment, which means that the load on its rods is constantly increasing, they bend down. If the flow rate decreases sharply, then sediments almost to the end of the trash holding lattice are inhibited and fill up, its efficiency and reliability are reduced, since the lattice itself lies stationary, i.e. in conditions of a variable water level above the grate, it can not cope with the removal of large stone and debris to remove the waste tray. Moreover, it does not have the ability to communicate to the trash holding lattice to provide it with oscillations of the rods, i.e. change the frequency and (or) the amplitude of the vibrations transmitted by the water flow when moving along the grate, due to the racks holding on the elastic elements in the form of guide adjusting bolts equipped with springs connected to the corners of the ramp. In addition, a high-speed jet of storm water falling into the settling chamber expands and does not extinguish kinetic energy and agitates small particles of sediment (sediment) in a removable dirt collector, and they enter the water intake chamber, then into the storm sewer, laying on the bottom along its length, which at low pressures cannot be cleaned (it will be necessary to use other flushing agents for this).

An object of the invention is to increase the reliability of operation, simplifying operation and automatic self-washing of the settling chamber under conditions of a variable water level above the trash bin, while reducing its clogging in the end part. The technical result is achieved by the fact that a storm water inlet containing a housing, a trash-holding grate mounted on it in the upper part of the casing, an inclined guide plate mounted inside the casing directly below the trash-holding grating, a vertical partition dividing the casing into a water intake and settling chamber, a drainage hole made in the partition and communicating with the intake and with the settling chambers, the drain pipe, the well is equipped with a waste tray located parallel to the side wall of the housing and adjacent its upper face to the lower end face of the trash guard, the guide plate being waterproof and the trash guard is pivotally fixed relative to the upper of the housing, from the side of the inner surface, in front of the outlet, a screen is installed on the front wall, according to the invention, the trash holding grid is multi-sectional, and the sections are arranged in series one after another in such a way that each subsequent section with a hinge is installed in the same plane of the slope and is made in the form of a vibro screen, with the possibility of placing their ends above the upper face of the vertical partition separating the body into the intake and settling chambers, and with the possibility of vertical movement of the free end the upper grille, and the mounting of the subsequent grille with a hinge on a ramp made of upper and lower parts, having racks in the form of guide adjusting bolts provided with springs connected to the corners of the ramp, and the upper edge of the partition is made with an outlet between the upper and lower parts pitched boards.

In addition, the pitched board with the upper part in relation to the lower part has the ability to adjust the angle of its inclination by adjusting and fixing by screwing the nuts on the lower part of the pitched board, rigidly fixed with its base to the upper edge of the vertical partition above the outlet coinciding with the bottom mark guide plate.

In addition, the settling chamber is provided on the side walls with damping plates with an inclination downward below the water intake opening blocked by the screen, the plates being made alternating in height to each other.

In addition, the outlet, between the upper and lower parts of the pitched board with the uprights and the spring, is connected to the settling chamber.

The use of a multi-section waste-holding grate when carrying out the invention, when each section is mounted on the same slope plane, plays the role of a vibro-screen with the possibility of one of the ends of the upper grate to be freely placed on the ramp board, and the subsequent lattice with a hinge for fixing on the ramp board, which consists of the upper and lower parts , and these parts of the ramp board are fastened together by racks, in the form of guide adjusting bolts equipped with springs. The force effect of the flow of water with sediment and debris is controlled by guide adjusting screws in the area above the upper edge of the vertical partition with outlet openings connecting the settling chamber. The frequency of the amplitude of oscillation of the rods of a multi-stage grate along the length of the well changes due to elastic elements (springs) with the possibility of communicating with a pitched oscillation board and transmitting these vibrations to the ends of the trash lattices in the direction of sediment and debris movement, then there is contamination in the discharge tray, i.e. large stone and debris. They “descend” into the outlet tray without clogging the grate along the length from above. In addition, in the settling chamber there is a further loss of kinetic energy at the bottom of the settling chamber, turbulization, collisions of flows and interaction with downward inclined plates attached to the walls of the settling chamber. As a result of this, water in a calm state passes through an outlet with a screen into a water intake chamber, then into a drain pipe of a storm sewer. And the settled sediment from the settling chamber is washed with a stream of water into the washing water collector for the settled fine sediment fractions, which can be equipped with an adjustment valve (not shown) that periodically regulates the washing in the automatic mode of fine sediment in the layer located in the settling chamber. Thus, pure water from above enters through the outlet in the partition in a calm state into the storm water intake chamber. In these cases, the development of devices and the need to carry out

sediment flushing, even at minimal costs for individual sediment fractions, with the possibility of communicating to the vibration lattices (vibrations), because otherwise, like the bottom collector, it is not able to fulfill its main function, since it can be quickly introduced by the accumulation of large sediments and debris on the trash In the lattice, and in the very settling chamber, small sediment sedimentation can occur with a dense, hard-to-wash layer.

This embodiment of the storm water inlet from interconnected elements will allow to exclude the blockage of the grate along the length of large sediments and debris and excludes the possibility of pulsating effects also on the operation of the settling chamber, and in a calm state, opening the shutter (not shown) will completely remove settled small fractions of sediment to the bottom of the settling chamber.

If there is a need, then when inspecting the structure, each multi-section grate individually is lifted easily by the operation service, then they are easily returned under their own weight to their original position for further operation of the structure in the usual manner.

Such a performance, according to the author, was not previously known and meets the criterion of "significant differences".

The drawing shows a storm water well.

A storm water inlet including a housing 1, a multi-section trash holding lattice 2 and 3 mounted on it, located in the upper part of the housing, an inclined guide plate 4 mounted inside the housing 1 directly below the first section of the trash holding grid 2, a vertical partition 5 dividing the housing into a water intake 6 and a slop chamber 7, the latter is equipped with damping plates 8 downward and alternating in height of the chamber 7, a spill hole 9 made in the partition 5 and communicating with the water inlet 6 and the slop chamber 7, a screen 10 and a drain pipe 11 are installed in front of the spill hole 9 in the front wall, the well is also equipped with a waste tray 12 located parallel to the side wall of the housing 1 and adjacent its upper face to the lower end face of the second section of the trash guard 3, and the guide plate 4 is made waterproof, and each section of the trash guard 2 and 3: - the first is fixed relative to the top the end face of the housing 1, and the second is fixed relative to the upper end face of the partition with the ramp 13. The ramp 13 consists of the upper part 14 and the lower part 15 and the base of the lower part is fixed to the additional wall 16 of the partition 5 above the outlet 17. The ramp in in the form of a working body on elastic elements in the form of springs 18 and 19 with the possibility of multisection grids 2 and 3 to communicate oscillations from parts 14 and 15, which are fastened to each other at the corners of the ramp 13 by movable struts 20 and 21 with springs 18 and 19. At the same time, the lower part 14 of the ramp 13 is rigidly fixed with a base relative to the end face of the additional wall 16, which is a continuation of the partition 5 in its upper part, with an additional outlet 22 between the parts 14 and 15 of the ramp 13 with movable struts 20 and 21 with springs 18 and 19 s the possibility of communicating the outlet with slop chamber 7 with a guide mounted screen 10. Side with the shadows of the settling chamber 7 below the screen 10 are provided with fixed damping plates 8 inclined downward, alternating to each other in height towards the bottom of the settling chamber 7.

The execution of each hinged section of the trash grids 2 and 3 relative to both the upper edge of the housing 1 and the edge of the additional wall 16, which is a continuation of the partition 5 with a sloping board 13 in the form of a vibro screen with attached struts 20 and 21 with springs 18 and 19, the upper part 14 is lowered to the position corresponding to the specified compression of the springs 18 and 19 (elastic elements), the grates 2 and 3 vibrate, transporting large sediment and debris into the waste tray 12 under the action of vibration. At the same time, this makes it possible for fine sediments to settle to the bottom of the settling chamber 3 for their subsequent flushing to the wash water collector 23, and clean water is sent to the rain sewer network through a drain pipe 11.

In general, all the elements of the claimed solution are aimed at improving the efficiency and reliability in the operation of this device.

Storm water well works as follows.

Surface wastewater passing through multi-section grates 2 and 3 flows down the inclined plate 4 and through, as well as through the outlet openings 17 and 22, and enters the settling chamber 3, entraining small sediments of medium and small fractions. Large sediments and debris are rolled along the multi-section grate 2 and 3 due to their vibration due to a change in the position of the vibrating upper part 14 relative to the lower part 15 of the ramp board 13. The upper part 14 is lowered under pressure to the position with the movable racks 20 and 21 attached, corresponding to the specified compression of the springs 18 and 19, the vibration of the grids 2 and 3, which are associated with the operation of this unit as a whole. But since the storm water flow and the presence of sediment and debris in it varies in filling time over grates 2 and 3, then their initial position is further stabilized. Thus, filling the settling chamber 7 with the extinction of the kinetic energy of the stream and filling it with water ensures its washing. In General, the device meets the requirement in the proposed invention, necessary to obtain the desired positive effect of storm drains with large sediment and debris, i.e. they should not linger on multi-section vibrating gratings, and the bulk of the flow enters the well. In this case, the deposition of fine particles of sediment fractions in the settling chamber 7 should be delayed with its constant washing. Therefore, in general, all the elements of the proposed solution are aimed at improving the efficiency and reliability in the operation of this device, the work that is described above.

With the correct ratio of the lengths of the multi-section vibrating gratings to each other along the length of the well with emphasis on the elastic element (pitched board with the elements as a whole) of the proposed devices ensures the quality of treated storm sewage. The proposed device will allow, unlike the known devices, to combine in one technological cycle of tasks the optimal treatment of storm sewage from sediment and debris, which means it will extend the life of the device for a similar purpose, the rainwater drainage system.

Claims (4)

1. A storm water inlet containing a housing, a trash-holding grate mounted on it in the upper part of the casing, an inclined guide plate installed inside the casing directly below the trash-holding grating, a vertical partition dividing the casing into a water intake and settling chamber, a drainage hole made in the partition and communicating with the water intake and with the settling chambers, the drain pipe, the well is equipped with a waste tray located parallel to the side wall of the housing and adjacent its upper face to the lower end face of the trash guard, and the guide plate is waterproof and the trash guard is pivotally mounted relative to the upper end face of the housing, from the side an inner surface, in front of the outlet, a screen is installed on the front wall, characterized in that the trash holding grid is multi-sectional, and the sections are arranged sequentially one after another so that each subsequent section with a hinge is mounted in the same plane of the slope and is made in the form of a vibro screen, with the possibility of placing their ends above the upper face of the vertical partition separating the body into the water intake and settling chambers, and with the possibility of vertical movement of the free end of the upper grill, and mounting the subsequent grill with a hinge on a pitched board made of upper and lower parts, having racks in the form of guide adjusting bolts provided with springs connected to the corners of the pitched board, the upper edge of the partition being made with an outlet between the upper and lower parts of the pitched board. 2. The inlet well according to claim 1, characterized in that the upper part of the ramp in relation to the lower part has the ability to adjust the angle of its inclination by adjusting and fixing by screwing the nuts on the bottom of the ramp, fixed firmly with its base to the upper edge vertical baffles above the outlet matching the bottom mark of the guide plate. 3. The inlet well according to claim 1, characterized in that the settling chamber is provided on the side walls with damping plates with an inclination downward below the water intake opening blocked by the screen, the plates being made alternating in height of the chamber to each other. 4. The inlet well according to claim 1, characterized in that the outlet, between the upper and lower parts of the ramp with the uprights and the spring, is connected to the settling chamber.

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