DE102015001829B3 - Relief flap for a water storage structure - Google Patents

Abstract

The invention relates to a float-controlled discharge flap for maintaining the integrity of a water level in a water reservoir, z. B. in a rain overflow basin or a storage space channel. The device comprises a mounted on its underside hinged to a fixed weir relief flap, which is connected via lever arms and a connecting shaft with a float and dissipates by lowering and overflow a proportional to the Zulaufwassermenge the water storage resulting water volume from the water tank. Furthermore, the invention provides to avoid the occurring at overflow relief valves Schwimmstoffaustrag by means of an adaptive to the overflow height behaved by the lever mechanism baffle and to detect the exact amount of water flowing through the discharge flap by means of a mounted on the relief flap top measurement profile.

Description

The invention relates to a relief flap according to the preamble of claim 1. Relief flaps for keeping constant water levels are used for many years. These are either balanced with counterweights and / or springs, are underflowed, or driven by external energy. Especially the underflowed variants cause a very unfavorable dirt discharge from o. G. Storage structures of the sewer system, as the sediments are entrained by the sole by the resulting suction near the bottom. In the overflowed variants, the major disadvantage in the discharge of floating matter.

From the DE 25 06 126 C3 is a relief flap according to the preamble of claim 1 is known. With this relief flap, the vehicle can get caught between the relief flap and the threshold.

The invention is therefore based on the object to eliminate the mentioned disadvantage.

This object is achieved with a discharge flap according to claim 1.

The discharge flap is connected via articulated lever arms to the float, the float in the closed position of the discharge flap and during the Aufstauphase serves as a counterweight to keep the discharge flap closed against the upcoming water pressure.

During the control phase of the relief flap, the float chamber fills with water via a separate threshold and the relief flap can lower, as part of the counterweight created by the float is neutralized by the rising water level in the float chamber and the resulting weight-reducing buoyancy.

In addition, during the control phase of the relief flap, attached to the lever arms of the weir flap in the upper water baffle is articulated in such a way that it dives according to the increasing overflow height above the weir flap in the relief water flow.

According to a first embodiment, the relief flap is hingedly mounted with its lower edge on the sole of a building or on a solid weir, the ascending sides of the relief flap each end at a side wall delimiting the length of the flap. The float is housed in a separate chamber and rigidly coupled to a movable connecting shaft, which runs parallel to the discharge flap and which in turn realized via both on the connecting shaft and on the relief flap hinged lever arms a force-transmitting connection to the discharge flap.

The length and height of the relief flap can be adapted in individual cases to the hydraulically required conditions. The same applies to the required volume of the float.

Further features and details of the invention will become apparent from the claims and the following description of an embodiment of the invention shown in schematic drawings. Show it:

1 in a spatial representation of a relief flap with float drive and lever arm mechanics in a relief structure.

2 a section through the device in the relief flap with closed relief flap in a relief structure.

3 a section through the device in the region of the float with closed relief flap in a relief structure.

4 a section through the device in the relief flap with open relief flap in a relief structure.

5 a section through the device in the region of the float with the discharge flap open in a relief structure.

6 an isometric view of the entire device with the discharge flap closed

7 an isometric view of the entire device with the discharge flap open

1 is a float-controlled discharge system 1 in a relief structure 2 shown. The float-controlled relief system includes a relief flap 3 , This jams in the storage room 4 water to the upper edge of the discharge flap 3 at. The relief flap 3 is by means of the axis 5 at the fixed weir threshold 6 rotatably mounted. The lever arms 7 connect the relief flap 3 with the connecting shaft 8th , The float 9 in the float chamber 10 is also connected to the connecting shaft 8th connected. Rises the water level 11 in the storage room 4 on, water flows over the threshold 12 in the float chamber 10 one. The float 9 rises and the relief flap 3 lowers. The at the lever arms 7 attached baffle wall 13 increases its immersion depth with lowering relief flap 3 , About the measurement profile 14 the overflowing amount of water can be determined exactly. The float chamber empties continuously through the drain opening 15 , While the known storage devices are either underflowed, or are controlled by springs or weights, the device is inventively overflowed and controlled by a float.

In 2 is the relief flap 3 with lever arms 7 and connecting shaft 8th shown in a sectional side view. The relief flap 3 is in closed position The water level 11 has reached its maximum height. The height and width of the relief flap can be adapted to the amount of water to be discharged.

In 3 is the float 9 with connecting shaft 8th in the float chamber 10 shown. The float 9 is in its lower position. The water level 11 has reached its maximum height. That in the float chamber 10 over the threshold 12 inflowing water can make the float 9 lift and thus the discharge flap 3 over the connecting shaft 8th and the lever arms 7 Lower.

In 4 is the relief flap 3 with lever arms 7 and connecting shaft 8th shown in a sectional side view. The relief flap 3 is in open position. The water level 11 remains constant at maximum height. Water gets out of the storage room 4 in the flow direction 18 dissipated.

In 5 is the float 9 with connecting shaft 8th in the float chamber 10 shown. The float 9 is in its upper position. The water level 16 in the float chamber has reached its maximum height. Sinks the water level 11 slightly decreases, the feed decreases in the float chamber 10 over the threshold 12 and the float chamber 10 emptied through the discharge opening 15 and the float 9 lowers again.

LIST OF REFERENCE NUMBERS

1

Float-controlled discharge system

2

building

3

relief flap

4

storage space

5

axis

6

Fixed weir threshold

7

lever arms

8th

connecting shaft

9

float

10

float bowl

11

Water level storage space

12

Threshold float chamber

13

baffle

14

measuring profile

15

Drain opening float chamber

16

Water level float chamber

17

poetry

18

flow direction

Claims (4)

Relief flap ( 3 ) for stowage target regulation in a storage structure ( 2 ) for liquid media, powered by a float ( 9 ), the relief flap ( 3 ) via articulated lever arms ( 7 ) and a rotatable connecting shaft ( 8th ) with a float ( 9 ) which is rigid with the connecting shaft ( 8th ) and in a separate float chamber ( 10 ), characterized in that the relief flap ( 3 ) can be overflowed. Relief flap ( 3 ) for stowage target control according to claim 1, characterized in that the discharge flap ( 3 ) rotatable at its lower edge at a fixed weir threshold ( 6 ) is stored. Relief flap ( 3 ) to Stauzielregelung according to claim 1, characterized in that on the upper edge of the discharge flap ( 3 ) a measuring profile ( 14 ) is arranged, over which the overflowing amount of water can be determined exactly. Relief flap ( 3 ) for stowage target control according to one of the preceding claims, characterized in that on the lever arms ( 7 ) on the upstream side a baffle ( 13 ), which about the movement of the lever arms ( 7 ) with lowering relief flap ( 3 ) increases their immersion depth.

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