CN112411722B - Overflow scrubbing system and rainwater pass through pond - Google Patents

Abstract

The invention relates in particular to an overflow decontamination system (1) for rainwater passing through a basin (2). In order to increase the drainage efficiency of the overflow decontamination system (1), the overflow decontamination system (1) is provided with a ventilation opening (6) for the water chute (4) in the water guide tank (3) of the overflow decontamination system. The water guide groove (4) has a gradient in the water discharge direction.

Description

Overflow scrubbing system and rainwater pass through pond

Technical Field

The present invention relates to an overflow sewage disposal system for a rainwater passing tank and a rainwater passing tank having the same.

Background

Rainwater pass-through ponds, also known as stormwater ponds, are used for clarifying confluent sewage or rainwater, in particular by sedimentation.

Overflow sewage removal systems for rainwater through ponds are used to divert mechanically clarified interflow sewage or rainwater under regulation into so-called drainage channels.

The rainwater passing tank is called a rainwater overflow tank or a rainwater clarification tank according to whether it operates in a combined system or a split system. In a combined system, mixed sewage (i.e., sewage, outside water, and rainwater) is mixed and sent to a rainwater passing tank. In a split-flow system, rainwater and residual sewage (especially municipal sewage) are treated separately.

Disclosure of Invention

It is an object of the present invention to provide an overflow sewage system for passing stormwater through a basin which has optimum drainage properties in a relatively compact design and which is therefore capable of transferring mechanically clarified merging stormwater or stormwater very efficiently into a drainage channel.

In order to achieve the above object, the present invention proposes firstly an overflow decontamination system having the means and features described in the independent claims for such an overflow decontamination system. The solution of the invention to the above object is in particular an overflow decontamination system for a rainwater pass-through basin, having a water guiding box comprising a water chute and a flow regulating structure leading into the water chute. The water guiding box has a ventilation opening for the water guiding channel, and according to the invention, the water guiding channel has a slope in the draining direction.

Through the slope of the water chute in the drainage direction, water entering the water chute through the flow regulating structure can be quickly discharged. The ventilation opening for the water guide chute in the water guide box ensures that the water energy flowing into the water guide chute through the drainage structure does not generate dynamic pressure counteracting the water inflow direction when entering the water guide chute. Air may also be continually drawn in through the vent and then may be discharged through the overflow decontamination system along with water discharged through the gutter. The interaction between the ventilation opening and the slope of the gutter in the drainage direction ensures that the overflow decontamination system has good drainage performance even in the case of a relatively compact size (i.e., for example, in the case of a relatively short gutter), and that a large amount of water can be reliably drained in a short time. The ventilation opening also ensures that the water entering the gutter through the flow regulating structure flows into the gutter in a so-called free fall manner. Therefore, the mixing of water and air can be promoted, and the water quantity which can be discharged during each overflow decontamination can be further increased under the free fall. In this way an overflow decontamination system for stormwater passing through the basin is provided with excellent performance.

In an advantageous embodiment of the overflow decontamination system, the flow regulating structure may comprise at least one variable drain opening leading into the gutter of the tank. By utilizing the variable water outlet, the flow regulating structure of the overflow sewage removal system can be realized. That is, it is desirable that the overflow sewage system deliver as constant a volume of water as possible to the drain, which is substantially unaffected by the level of rainwater passing through the basin. This does not affect the process of efficiently clarifying the rainwater through the catchment in the basin.

The determining factor for clear stormwater passing through catchments in the basin is the so-called sedimentation. If the flow rate through the overflow sewage system into the drainage channel is too large, sedimentation of the sewage in the tank for clarifying the rainwater may be disturbed. When the flow rate of water flowing from the rainwater passing through the basin into the drain channel through the overflow sewage disposal system is excessive, the floating materials, which have settled due to sedimentation, are likely to be agitated again, and then the likely polluted water enters the drain channel.

When the overflow decontamination system is in a use position, the water guide tank can be arranged in a water collecting chamber of the rainwater passing pool. This creates an overflow decontamination system without the need for any additional structural space near the rain passing basin. Furthermore, such overflow sewage removal systems are retrofitted in storm water passing ponds in which the overflow sewage removal system is not provided or is provided only slightly. The overflow sewage disposal system of this embodiment can improve the performance of rainwater passing through the tank when necessary.

At least one of the water outlets is variable. This depends in particular on the level of rainwater through the basin, equipped with an overflow decontamination system. If the overflow sewage system, and in particular the at least one drain opening thereof, is arranged stationary in the rainwater passing basin, the water pressure acting on the at least one drain opening increases as the level of rainwater passing through the basin increases. This may result in a greater amount of water tending to enter through at least one drain opening of the flow regulating structure of the overflow decontamination system and eventually reaching the drain channel. In order to keep the flow conditions of the rainwater through the basin as constant as possible, it is reasonable that the outlet opening varies in dependence on and/or in dependence on the variation of the level of rainwater through the basin equipped with an overflow sewage system. This can be done in different ways:

in one embodiment of the overflow sewage system, it is provided that the at least one drain opening is variable in size to provide an adjustable drain structure. Preferably, to provide the regulated drainage arrangement, the size of the at least one drain opening is variable in dependence on and/or in dependence on the level of rainwater equipped with the overflow decontamination system passing through the basin. In this way, the size of the at least one drain opening of the overflow decontamination system may, for example, decrease as the liquid level increases. The increased water pressure at the at least one drain of the overflow decontamination system may be compensated for by the reduction in size and/or cross-section thereof. As a result, the amount of water drained from the stormwater passing pool each time through the at least one drain opening of the overflow decontamination system may remain substantially constant even if the water level varies.

Another, likewise advantageous embodiment of the overflow sewage system provides that the position of the at least one drain opening of the overflow sewage system in the position of use in the rainwater passage basin is variable to provide a regulated drainage structure. This may also depend on and/or be accompanied by a change in the level of rainwater equipped with the overflow decontamination system through the basin.

In this variant of the overflow decontamination system, the size of the at least one drain opening of the flow regulating structure may remain unchanged. Since the position of the at least one drain opening is variable in dependence on the level of rainwater passing through the basin or even in dependence on the level of rainwater passing through the basin, it is possible to prevent the hydraulic pressure acting on the at least one drain opening from increasing with increasing liquid level. This is especially true if the at least one drain opening rises as rainwater rises through the basin by the basin liquid level, i.e. its vertical position changes.

A particularly effective embodiment of the overflow sewage system provides that the flow regulating structure comprises at least one preferably variable drain opening on each side of the water chute. This may increase the amount of clarified water flowing out through the overflow abatement system.

In order to be able to intercept rainwater passing floaters in the basin equipped with an overflow decontamination system, it may be advantageous for the overflow decontamination system to have at least one submerged wall. The flow regulating structure, in particular at least in one of the drainage openings, is provided with at least one diving wall.

It should be noted that in the position of use of the overflow sewage system, the bottom of the diving wall may be arranged below the overflow edge of the flow regulating structure, in particular of the at least one water discharge opening of the flow regulating structure. The floating objects can be trapped on the surface of the rainwater catchment in the pool through the diving wall. This prevents the float from entering the drain through the flow regulating structure of the overflow decontamination system.

In one embodiment of the overflow sewage system, it is provided that at least one diving wall of the overflow sewage system is vertically movable. This variant is particularly advantageous for an embodiment of the overflow sewage system in which the position of the at least one drain opening when rainwater passes through the basin in the position of use is variable in conjunction with the level of rainwater passing through the basin. Here, at least one diving wall of the overflow sewage system can be guided in a vertical movement.

The water conducting box may comprise a bottom box and a closing cover arranged above and/or over the bottom box. The gutter may be built into the bottom box. The closing cover of the water guide box is air-permeable and is equipped in particular with the above-mentioned ventilation openings or other ventilation openings for ventilating the water guide channel.

At least one drain opening and/or at least one further drain opening of the flow regulating structure can be formed by the distance between the closing cover and the bottom box of the water guide box. In this case, the distance between the closure cap and the bottom box is in turn variable to vary the size of the at least one drain opening. The distance between the closing cover and the bottom box may be variable in dependence on the level of rainwater equipped with the overflow decontamination system passing through the basin and/or in dependence on the level of rainwater equipped with the overflow decontamination system passing through the basin.

In this way, the distance between the closing cover and the bottom box can be adjusted in a desired manner depending on the level of rainwater passing through the basin, whereby the at least one drain opening of the flow regulating structure formed by this distance and its dimensions are adjusted. This in turn aims to be able to provide as constant a flow as possible at least within a defined level range of rainwater through the basin.

To change the size of the at least one drain opening, the closure cap is movable between a closed position and an open position. This in turn depends in particular on the level change of the rainwater equipped with the overflow decontamination system through the basin and/or along with the level change of the rainwater equipped with the overflow decontamination system through the basin.

In one embodiment of the overflow sewage system, it can also be provided that a ventilation opening or other ventilation openings are arranged above the water trough. Furthermore, it may be particularly advantageous for the ventilation opening to extend along and/or over the entire water chute in the water box. This ensures that a sufficient amount of air can reach the gutter through the vent. Thus, when the rainwater drains from the pool, the water can enter the water chute of the water guide tank of the overflow decontamination system through the flow regulating structure in the manner of the free fall.

The at least one submerged wall may be constructed or arranged on a diversion box of the overflow decontamination system. In a variant of the water box with a closing cover, at least one diving wall or another diving wall can be built or arranged on the closing cover of the water box.

If the water guide box is constructed to be floatable, the water guide box may change its position in the rainwater passing pond, particularly its vertical position, accompanying the change of the liquid level in the rainwater passing pond. In this way, the water directing tank and the at least one drain hole of the flow regulating structure of the overflow decontamination system maintain a constant distance from the horizontal plane even if the level of rainwater passing through the basin changes. In this way, a substantially constant water pressure is applied to the at least one drain opening even when the liquid level changes, which promotes a constant drainage by the flow regulating structure of the overflow decontamination system. In this case, it is not necessary to adjust the size of the at least one drain opening depending on the liquid level. The water conducting tank may have at least one float in order to enable it to float.

In a variant of the overflow decontamination system, wherein the water conducting tank is equipped with a closing cover and a bottom tank, a seal is built between the closing cover and the bottom tank. By means of the seal, water is prevented from leaking at the drain after treatment of the overflow decontamination system from rainwater passing through the basin when the closure lid is positioned in its closed position on the bottom box, the seal being arranged on the lid or on the bottom box. It is also possible to provide corresponding seals on both the lid and the bottom box.

The closing cover may be at least indirectly connected to the pontoon such that the closing cover is movable between its closed position on the bottom box and its open position depending on the level of rainwater equipped with the overflow decontamination system passing through the basin. It is also possible for the closing cover to be connected directly to the pontoon or to have such a pontoon.

The closing cover may be connected to the pontoon, for example to the pontoon as described above, via a lever mechanism. By means of a lever mechanism, the position of the pontoon, which changes when the level of rain water through the basin changes, can be transferred to the position of the closing cover. The closing cover can also be moved via a lever mechanism from its closed position on the bottom box of the water guide box in the direction of its open position if the float is raised.

The closure cap can also be connected to a preferably mechanical guide mechanism. By means of such a preferably mechanical guide mechanism, the closing cover can be moved, in particular raised, to its maximally open position when the pontoon is raised, and can be moved, in particular lowered, to its closed position when the pontoon is further raised. In this way, the outlet opening formed between the closing cover and the bottom box can first be opened until the rain water passes through a certain level of the basin and then be enlarged further. If a defined level is reached and the sewage flows beyond this level further into the rainwater passage basin, the drain opening between the closing cover and the bottom box of the water guide box may be reduced by the movement of the closing cover in the direction of its closed position. The object of this is that the flow rate per unit time flowing via the regulating discharge structure into the water chute of the overflow sewage system and from there out into the drain channel remains constant even if a change in the liquid level occurs at least within a defined liquid level range.

The guide mechanism may have, for example, a guide runner and a guide slide which is connected at least indirectly to the closure cap and is guided in the guide runner. For example, sliders and/or sliding balls can be used as guide slides. The guide chute can be oriented and/or constructed in such a way that the closing cover is removed, in particular lifted, from the bottom box of the water guide box when the liquid level first rises and thus the pontoon rises. In this way, the drain opening of the at least one flow regulating structure is opened. If the liquid level rises further, the pontoon rises further, and the closing cover correspondingly moves further away from the bottom box. In this case, the drain opening between the closing cover and the bottom case can be enlarged.

Due to the orientation and design of the guide runner, the increase in the liquid level can be converted into a further distancing of the closure flap, in particular a lifting up to its uppermost position. If the rain water rises above the above-mentioned liquid level by the liquid level in the basin, the pontoon, which is at least indirectly connected to the closing cover of the water guide box, will rise further. However, due to the guide runner and its design, further raising of the pontoon can be converted into a closing movement of the closing cover. In this case, the closure flap can be lowered over the bottom box in the direction of its closed position. In this way, the at least one drain opening between the closing cover and the bottom box of the water guide box can be first reduced and finally completely closed.

The guide mechanism and/or the lever mechanism may have a trigger delay device. By means of the trigger delay device, the closing cover can be delayed in opening when the level of rainwater rises through the basin. This has the advantage that the at least one drain opening between the closing cover and the bottom box is not opened immediately when the liquid level is initially raised. This enables full use of the pool volume before the water flushes into the drain. The trigger delay means may comprise a lever fixing pin having two levers, wherein the first lever has a weight at its free end and the second lever has a float, such as the float described above. The second lever may contact the pontoon, in particular on an inclined surface of the pontoon. The second lever may be built with a slide or ball at its free end. The lever fixing pin may be rotatably installed, wherein a hinge of the lever fixing pin may be built between the first lever and the second lever. When the rainwater rises through the liquid level in the basin, the buoy is subjected to buoyancy, thereby pressing it from bottom to top onto the free end of the second lever. From a defined buoyancy, i.e. when the liquid level rises further, the free end of the second lever slides down or rolls down the slope of the pontoon, triggering the delay device to release the pontoon, which can float freely depending on the level of rainwater through the pool. In this way, the closing cover on the water-carrying bottom box can be moved from its closed position in the direction of its open position, and at least one flow opening between the closing cover and the bottom box is opened and first enlarged further as the liquid level rises further.

In one embodiment of the overflow decontamination system, the water tank is connected via a joint, in particular via a hinge, to a movable drain line leading to the drain channel. The movable drain line can be, for example, a movable drain pipe leading to a drain. In this way, the water guide box of the overflow decontamination system can change its vertical position in the rainwater passage basin with an increase in the level of the rainwater passage basin without interrupting the connection to the drainage channel via the drainage line. This variant is particularly advantageous in particular if the water box is buoyant and/or is equipped with at least one pontoon.

In order to achieve the object defined above, the invention finally proposes a rainwater passage tank, in particular a rainwater tank or a rainwater clarifier, having the features of the independent claim for such a rainwater passage tank. The solution of the invention to the above object is particularly a stormwater passing basin with an overflow decontamination system, which overflow decontamination system complies with any of the claims.

The rainwater passing tank may have a collecting chamber for the sewage in which a water guiding tank of an overflow sewage disposal system is disposed. In this way, the collecting chamber of the rainwater passage basin can be used as a structural space for the overflow sewage disposal system. The overflow decontamination system may be arranged and/or built in a catchment chamber for sewage in the stormwater passing basin.

The stormwater access basin may have an overflow drain opening to the drain channel. A large amount of sewage can flow via the overflow drain opening directly to the drain before the rain passes through the basin, for example in heavy rain. In this case, the overflow edge of the regulating drainage structure of the overflow sewage disposal system may be arranged at a position lower than the overflow edge of the overflow drain opening.

In this way, it is ensured that rainwater is released to the drain channel through the overflow sewage disposal system through the water in the pool, and only when the rainwater reaches a critical level through the pool, the rainwater must be drained to the drain channel through the overflow drain opening through the non-clarified water in the pool.

The overflow decontamination system may be docked to a drain of the stormwater passing basin, which drain is built into a catchment chamber of the stormwater passing basin, for example a wall of the aforementioned catchment chamber.

Drawings

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. Further embodiments are provided by combining features of one or more of the claims with each other and/or by combining features of one or more of the embodiments. In the figure:

fig. 1 shows an isometric view of a first embodiment of an overflow sewage system in a stormwater passing basin, wherein a bottom box of an overflow sewage system tank can be seen, which bottom box is stationarily mounted in the stormwater passing basin, and on which a closure cap is in a closed position;

FIG. 2 shows an isometric view of the overflow decontamination system of FIG. 1, with the closure lid in a maximum open position over the bottom box of the water guide box;

FIG. 3 shows a cross-sectional view of the overflow decontamination system of FIGS. 1 and 2, with the closure lid in a closed position over the bottom box of the water guide box;

FIG. 4 illustrates the overflow decontamination system of the previous figures, with the closure lid in an open position;

FIG. 5 shows a side view of the bottom box of the overflow decontamination system shown in the previous figure, illustrating the slope of a flume constructed in the bottom box of the flume tank;

FIG. 6 shows a perspective view of a detail of the trigger delay device of the overflow decontamination system shown in the previous figure;

FIG. 7 shows a side view of the overflow decontamination system shown in the previous figure, with the closure lid in a closed position over the bottom box of the water guide box;

FIG. 8 shows a side view of the overflow decontamination system shown in the previous figure, with the closure lid in a maximum open position over the bottom box of the tank and the side drain opening open;

FIG. 9 illustrates another side view of the overflow decontamination system shown in the previous figure, wherein the closure cap is at the highest level in the rain water passing basin, the closure cap being located closer to the bottom box than its maximum open position;

FIG. 10 shows a perspective view of another embodiment of an overflow decontamination system with a diversion box vertically movable with rainwater through a liquid level in the tank;

FIG. 11 illustrates a side view of the overflow abatement system of FIG. 10 with the water box in a start position;

FIG. 12 shows a side view of the overflow abatement system of FIGS. 10 and 11 with the water tank in a maximum raised position;

FIG. 13 shows a cross-sectional view of the sump of the overflow decontamination system of FIGS. 10-12; and

fig. 14 is a side view schematically showing a water guide box of the overflow sewage system of fig. 10 to 13, in which a plurality of drain openings in the form of long holes are transversely built on the water guide box.

Detailed Description

The figures show an embodiment of an overflow abatement system, generally designated 1. Each overflow decontamination system 1 shown in the drawings is intended to be located in a storm water passing basin 2. According to an embodiment, the rainwater passing tank 2 may be constructed as a rainwater tank or may also be constructed as a rainwater clarification tank.

Each overflow decontamination system 1 is shown having a header tank 3, the header tank 3 having a gutter 4 built therein. Each water guiding box 3 further comprises a flow regulating structure 5 leading into the water guiding groove 4. Each of the water directing tanks 3 is equipped with a vent 6 for its water directing chute 4. Each water chute 4 is provided with a slope surface in the water drainage direction. The interaction of the ventilation opening 6 with the sloping surface of the gutter 4 ensures excellent drainage of the overflow decontamination system 1.

The flow regulating structure 5 of each overflow decontamination system 1 is shown to have a plurality of water discharge openings 7 leading into the respective flume 4. In each of the overflow decontamination systems 1 shown, the drain 7 is variable in some way.

In the overflow sewage system 1 shown in fig. 1 to 9, the drain opening 7 of the overflow sewage system 1 is fixedly arranged in position within the rainwater passing tank 2. The size of the drain 7 can be adjusted, i.e. variable, according to the level of rainwater passing through the basin 2.

In the overflow sewage system 1 shown in fig. 10 to 14, the size of the drain opening 7 of the overflow sewage system 1 is kept constant, but the vertical position of the drain opening 7 within the rainwater passing tank 2 may vary along with the height of the rainwater passing tank 2. In this connection, these drainage openings 7 are also variable drainage openings.

In both embodiments of the overflow decontamination system 1, the respective water directing tank 3 is arranged in the water collecting chamber 8 of the respective rainwater passing basin 2 when the overflow decontamination system 1 is in the position of use.

As described above, the drain 7 of each overflow sewage system 1 is variable according to the level change of rainwater equipped with the overflow sewage system 1 through the pond 2. Specifically, the drain 7 varies as the level of rainwater equipped with the overflow decontamination system 1 through the basin 2 varies.

In both embodiments of the overflow decontamination system 1 shown in the figures, the flow regulating structure 5 has at least one variable drain opening 7 on both sides of the flume 4.

In the embodiment of the overflow sewage system 1 shown in fig. 1 to 9, the continuous drainage openings 7 are respectively provided on both sides of the water chute 4 of the water guide box 3, and the water guide box 3 of the overflow sewage system 1 shown in fig. 10 to 14 is respectively provided with a row of a plurality of drainage openings 7 formed in long holes on both sides of the water chute 4.

Each overflow abatement system 1 shown in the drawings has two submerged walls 8. The diving wall 8 of the overflow decontamination system 1 is associated with the flow regulating structure 5 (in this case in particular the drain 7) and serves to intercept rainwater passing through the floating objects in the basin 2. In this case, in the position of use of the overflow decontamination system 1, the bottom 9 of the respective diving wall 8 is arranged below the overflow edge 10 of the flow regulating structure 5, more precisely below the overflow edge 10 of the drain opening 7. In both embodiments of the overflow decontamination system 1 shown in the figures, the diving wall 8 is guided in a vertically movable manner in the rainwater collection chamber 11 through the basin 2. Since the diving walls 8 are guided vertically in the collecting chambers 11 of the rainwater passing basin 2, the diving walls 8 can change their position in the collecting chambers 11 of the respective rainwater passing basins 2 according to the liquid level change in the collecting chambers 11 and with the liquid level change in the collecting chambers 11 of the rainwater passing basins 2.

In the overflow sewage system 1 shown in fig. 1 to 9, the water guide tank 3 has a bottom tank 12. The above-mentioned water chute 4 of the overflow decontamination system 1 is built into the bottom box 12. The overflow decontamination system 1 further has a gas-permeable closure cover 13, which closure cover 13 is arranged on or above the bottom box 12 and has the above-mentioned ventilation opening 6 of the overflow decontamination system 1.

In this embodiment of the overflow decontamination system 1, the drain opening 7 of the flow regulating structure 5 is formed by the distance between the closing cover 13 and the bottom box 12. The distance between the closing cover 13 and the bottom box 12 is variable. The variation depends on the level variation of the rainwater equipped with the overflow decontamination system 1 through the sump chamber 11 of the basin 2. The closure cap 13 is movable between a closed position (see fig. 7) and an open position (see fig. 8 and 9) to vary the size of the drain opening 7. This is a function of the level of rainwater equipped with the overflow decontamination system 1 through the basin 2, and more precisely, of the level of rainwater equipped with the overflow decontamination system 1 through the basin 2.

In this embodiment of the overflow decontamination system 1, the vent opening 6 is arranged along the gutter 4 above it. In this case, the ventilation opening 6 extends along the entire water chute 4 above it. According to fig. 1 to 9, the diving wall 8 of the overflow decontamination system 1 is arranged on the closing cover 13 of the water box 3.

The overflow decontamination system 1 shown in fig. 10-14 has a water conducting tank 3, which water conducting tank 3 is of a buoyant construction and comprises a float 14. In this header 3, a diving wall 8 is arranged or built on the header 3. Specifically, it is arranged or built on the floating body 14 of the water guide box 3.

In the water guiding tank 3 of the overflow decontamination system 1 shown in fig. 1-9, a sealing member 15 is arranged between the closing cover 13 and the bottom tank 12 of the water guiding tank 3.

In the overflow decontamination system 1 shown in fig. 1-9, the closure cover 13 is indirectly connected to the pontoon 16 via a lever mechanism 17. There is further provided a mechanical guide mechanism 18 arranged between the pontoon 16 and the closing cover 13. With the mechanical guide mechanism 18, the closing cover 13 is moved to its maximum open position when the pontoon 16 is raised. See fig. 8 for this point. If the float 16 continues to rise, the closing cover 13 is lowered again by a distance in the direction of its closed position by means of the mechanical guide 18. This is shown in FIG. 9.

For this purpose, the guide mechanism 18 comprises a guide runner 19 and a guide slide 20 which is connected at least indirectly to the closing cover 13 and is guided in the guide runner 19. The guide slide 20 is a slide arranged to be guided in the guide runner 19 and connected to the closing cover 13 via a lever securing pin.

If the pontoon 16 rises to a level at which rainwater passes through the tank 2, its vertical movement (indicated by the double arrow pf.1) is converted via the lever mechanism 17 into a relative lateral movement (indicated by the double arrow pf.2) of the guide chute 19 of the guide mechanism 18. In this way, the guide runner 19 is displaced relative to the guide slide 20 and the closure lid 13 is raised to its uppermost position according to a control curve predetermined by the guide runner 19, see fig. 8.

If the pontoon 16 rises above the position shown in fig. 8 in the rainwater passage pool 2, the guide runner 19 is displaced further to the right and the guide slide 20 reaches the lower position shown in fig. 9. In this way, the closing cover 13 connected to the guide slide 20 is lowered again by a distance toward its closed position, i.e., in the direction of the bottom box 12 of the water box 3, and the outlet opening 7 formed between the closing cover 13 and the bottom box 12 is reduced.

The overflow decontamination system 1 shown in fig. 1-9 also has a trigger delay device 21. The trigger delay device 21 is connected to the guide mechanism 18 and the lever mechanism 16.

The trigger delay means 21 serve to delay the raising of the closure cap 13 and the opening of the drain opening 7 when the level of rainwater rises through the water collection chamber 11 of the basin 2. The trigger delay means 21 is equipped with a lever fixing pin 22, and the lever fixing pin 22 includes two levers 23 and 24. Levers 23 and 24 are at a 90 degree angle to each other.

The first lever 23 has a weight 25 at its free end. The second lever 24 contacts the float 16 at a ramp 26 formed on the float 16. The second lever 24 has a slide at its free end, with which the second lever 24 can slide along the inclined surface 26 of the pontoon 16. A lever fixing pin 22 having two levers 23 and 24 is rotatably disposed. The pontoon 16 is subjected to buoyancy if the rainwater rises through the liquid level in the collecting chamber 11 of the basin 2. By activating the second lever 24 of the lever securing pin 22 of the delay means 21, the float 16 is mainly prevented from floating up in the rainwater passage basin 2 as the liquid level rises.

As the liquid level rises, the buoyancy force applied by the pontoon 16 to the second lever 24 of the lever-fixing pin 22 increases until the lever-fixing pin 22 pivots laterally against the weight of the counterweight 25 at the free end of the first lever 23 and slides down the inclined surface 26 of the pontoon 16. Once this occurs, the pontoons 16 are free to rise through the storm water in the basin 2. As described above, the movement of the float 16 is then transmitted via the lever mechanism 17 to the guide mechanism 18, the guide runner 19 and ultimately from there to the closure flap 13 and is converted into a movement of the closure flap 13 which is guided in accordance with the orientation of the guide runner 19.

In the overflow decontamination system 1 shown in fig. 10-14, the tank 3 is connected via a joint 27 (in this case a hinge) to a movable drain line 28 leading to a drain. In the embodiment of the overflow decontamination system 1 shown in the figures, the drain line 28 leading to the drain is a movable drain tube. The drain pipe is in turn docked via a further joint 29 to a drain 30 of the rainwater passing basin 2. The drain port 30 is built in the wall of the sump 11 of the rainwater passing pool 2.

In both embodiments of the overflow decontamination system 1 shown in the figures, the respective water guiding box 3 is arranged within a collecting chamber 11 for sewage in the rainwater passing tank 2.

Each of the two rain water passing ponds 2 shown is also provided with an overflow drain opening 31 leading to a drain channel. When the overflow sewage system 1 is in the use position and the rainwater passes through the basin 2 in normal operation, the overflow edge 10 of the respective flow regulating structure 5 is arranged in the collecting chamber 11 of the rainwater passing through the basin 2 such that the overflow edge 10 is located at a position lower than the overflow edge of the overflow drain opening 31. Only in special cases, for example during heavy rains, the water guiding box 3 of the overflow decontamination system 1 shown in fig. 10 to 14 will float up to the position shown in fig. 12, in which the overflow edge 10 of the drain opening 7 is arranged at a higher level than the overflow edge of the overflow drain opening 31.

The invention relates in particular to an overflow sewage system 1 for rainwater passing through a basin 2. In order to increase the drainage efficiency of the overflow decontamination system 1, the overflow decontamination system 1 is built with a vent 6 for the flume 4 in its header 3. Further, the water guide groove 4 has a slope in the drainage direction.

List of reference numerals

1 overflow decontamination system

2 rainwater passing pool

3 Water guiding box

4 water chute

5 flow regulating structure

6 air vent

7 water outlet

8 diving wall

9 diving wall bottom

10 overflow edge of drain

11 rainwater collecting chamber

12 bottom box

13 closed cover

14 float of water guide tank

15 seal

Buoy with 16 closed cover

17 lever mechanism

18 guide mechanism

19 guide chute

20 guide slide

21 trigger delay device

22 Lever fixing pin for triggering delay device

23 first lever

24 second lever

25 counterweight block

Bevel of 26 pontoons

27 connection between a water conducting tank and a drainage line

28 drainage pipeline

29 joint between drainage line and drain

30 discharge port

31 overflow drain outlet

Claims (35)

1. An overflow decontamination system (1) for stormwater passing through a basin (2), wherein:

the overflow decontamination system (1) is provided with a water guide tank (3), the water guide tank (3) comprises a water guide groove (4) and a flow regulating structure (5) leading to the water guide groove (4), the water guide tank (3) is provided with a ventilation opening (6) for the water guide groove (4), the water guide groove (4) has a gradient in a water drainage direction, and the flow regulating structure (5) comprises at least one water drainage opening (7);

in order to provide said flow-regulating structure (5), said at least one drain opening (7) is variable in size, said size being variable as a function of the level of rainwater passing through the basin (2) equipped with said overflow decontamination system (1); and/or

In order to provide said flow regulating structure (5), the position of said at least one drain opening (7) when in the position of use in said rainwater passing basin (2) is variable, said position being variable according to the variation of the level of rainwater passing through the basin (2) equipped with said overflow decontamination system (1).

2. The overflow decontamination system (1) according to claim 1, wherein the stormwater passage tank (2) is a stormwater tank and/or a stormwater clarifier.

3. The overflow decontamination system (1) according to claim 1, wherein the diversion box (3) is arranged within a catchment chamber (11) of the stormwater passage basin (2) when the overflow decontamination system (1) is in a position of use.

4. The overflow decontamination system (1) according to any one of claims 1-3, wherein the at least one drain opening (7) of the flow regulating structure (5) is on both sides of the flume (4).

5. The overflow decontamination system (1) according to any one of claims 1-3, wherein the overflow decontamination system (1) has at least one submerged wall (8), the at least one submerged wall (8) being associated with the flow regulating structure (5) for intercepting floaters.

6. Overflow decontamination system (1) according to claim 5, wherein said at least one submerged wall (8) is associated with at least one drain (7) of said flow regulating structure (5).

7. Overflow decontamination system (1) according to claim 5, wherein the at least one submerged wall (8) is arranged at least vertically movable.

8. Overflow decontamination system (1) according to claim 7, wherein the at least one submerged wall (8) is arranged at least vertically movably guided.

9. The overflow decontamination system (1) according to any one of claims 1-3, wherein the water conducting tank (3) comprises a bottom box (12) and a gas-permeable closing cover (13), the water guiding gutter (4) being built into the bottom box (12), the closing cover (13) being arranged on or above the bottom box (12); and/or the closure cap (13) has a ventilation opening (6).

10. Overflow decontamination system (1) according to claim 9, wherein the at least one drain opening (7) of the flow regulating structure (5) is formed by a distance between the closing cover (13) and the bottom box (12), the distance being variable.

11. The overflow decontamination system (1) according to claim 10, wherein the distance is variable depending on a change in a level of rainwater passing through a basin (2) equipped with the overflow decontamination system (1).

12. Overflow decontamination system (1) according to claim 9, wherein the closure cover (13) is arranged to be movable between a closed position and an open position for varying the size of the at least one drain opening (7).

13. Overflow decontamination system (1) according to claim 12, wherein the size variation of the at least one drain opening (7) varies according to the level variation of rainwater through the basin (2) equipped with the overflow decontamination system (1).

14. The overflow decontamination system (1) according to any one of claims 1-3, wherein a vent (6) is arranged along the gutter (4) and/or above the gutter (4).

15. Overflow decontamination system (1) according to claim 5, wherein the diving wall (8) is arranged on the water guiding box (3).

16. Overflow decontamination system (1) according to claim 9, wherein the overflow decontamination system (1) has at least one submerged wall (8), the at least one submerged wall (8) being associated with the flow regulating structure (5) for intercepting floaters, the submerged wall (8) being arranged on the containment cover (13).

17. The overflow decontamination system (1) according to any one of claims 1-3, wherein the water conducting tank (3) is of a floatable construction.

18. The overflow decontamination system (1) of claim 17, wherein the water conducting tank (3) has a float (14).

19. Overflow decontamination system (1) according to claim 9, wherein a seal (15) is arranged between the closing cover (13) and the bottom box (12) of the water conducting box (3).

20. Overflow decontamination system (1) according to claim 9, wherein the closure cover (13) is at least indirectly connected to a pontoon (16) and/or has a pontoon.

21. Overflow decontamination system (1) according to claim 9, wherein the closure cover (13) is connected to a float (16) via a lever mechanism (17), the closure cover being connected to a mechanical guiding mechanism (18), the closure cover (13) being movable by the guiding mechanism (18) to its maximum open position when the float (16) is raised and in the direction of its closed position when the float (16) continues to be raised.

22. Overflow decontamination system (1) according to claim 21, wherein the guiding mechanism (18) comprises a guiding chute (19) and a guiding slide (20) at least indirectly connected to the closure lid (13) and guided in the guiding chute (19).

23. Overflow decontamination system (1) according to claim 22, wherein the guide slide (20) is a slide and/or a slide bead.

24. The overflow decontamination system (1) of claim 9, wherein the overflow decontamination system (1) has a trigger delay device (21), by means of which trigger delay device (21) the rising of the closure cap (13) can be delayed when the liquid level rises.

25. Overflow decontamination system (1) according to claim 21, wherein the guiding means (18) and/or the lever means (17) have/has a trigger delay device (21).

26. The overflow decontamination system (1) of claim 24, wherein the trigger delay device (21) comprises a lever fixation pin (22) having two levers (23, 24), wherein a first of the levers (23, 24) has a weight (25) at its free end and a second lever (24) contacts the buoy (16).

27. The overflow decontamination system (1) of claim 26, wherein the second lever (24) contacts a ramp (26) of a float (16).

28. The overflow decontamination system (1) according to any one of claims 1-3, wherein the water conducting tank (3) is connected via a joint (27) to a movable drain line (28) leading to a drain.

29. Overflow decontamination system (1) according to claim 28, wherein the joint (27) is a hinge.

30. The overflow decontamination system (1) of claim 28, wherein the movable drain line (28) is a movable drain tube.

31. A stormwater pass through basin (2) comprising an overflow decontamination system (1) as claimed in any one of claims 1-30.

32. A stormwater passage pool (2) as claimed in claim 31, wherein the stormwater passage pool (2) is a stormwater pool and/or a stormwater clarifier.

33. A stormwater passage pool (2) as claimed in claim 31, wherein the stormwater passage pool (2) has a collecting chamber (11) for sewage, the water conducting box (3) of the overflow decontamination system (1) being arranged in the collecting chamber (11), the stormwater passage pool (2) having an overflow drain opening (31) leading to a drain channel.

34. A stormwater passage pool (2) as claimed in claim 33, wherein the overflow edge (10) of the flow regulating structure (5) is arranged in the water collection compartment (11) of the stormwater passage pool (2) at a position below the overflow of the overflow drain openings (31).

35. A stormwater passage pool (2) as claimed in any one of claims 31-34, wherein the overflow decontamination system is connected to a drain (30) of the stormwater passage pool (2), the drain (30) being built on a wall of a catchment chamber (11) of the stormwater passage pool (2).

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