RU90806U1 - SELF-FLUSHING DRAINAGE OF THE PERIODIC ACTION - Google Patents

Abstract

Self-washing drainage of periodic action, including an accumulation tank for accumulating washing water, connected by an automatic drainage device to the inspection drainage well of the washed drainage, and a manhole of the accumulating tank, characterized in that the accumulation tank intended for hydraulic washing of the drainage and accumulating filtering water is located in the body soil dam in the zone of seasonal increase in the surface of the depression, but outside the filtration zone of iron and manganese in d has on its circumference openings for collecting rainwater seepage water, protected from the inverse filter and silting protective filter material.

Description

The utility model relates to the field of hydraulic engineering and can be used to clean sediments from drainage.

For hydraulic washing of drainage from deposits, viewing wells included in the design of the drainage or special washing wells are used.

A washing well is known, equipped with a special lever valve, siphon, flap or shutter, which, after filling the washing well, opens and closes from the ground or automatically. Filled with water from any source (water supply, pond, storm or drainage water, water trucks, etc.), the flush well is quickly emptied into the flushed drain pipe. Thus, in one gulp, water discharged into the drainage erodes sediments and transports them to the place of discharge from the drainage system (TSN EK-97 MO. Rationing and standardization. Territorial building codes. Technical rules and norms for the construction, operation and monitoring of the construction of water disposal systems for low-rise buildings on the territory of the Moscow Region, approved by the Decree of the Government of the Moscow Region dated March 30, 1998 No. 28/9, p.21).

The disadvantage of the analogue is that such and similar devices, depending on their design, often require the organization of additional work on cleaning the drainage of the hydraulic structure, attracting people and mechanisms, delivering water to create a wash flow from any sources or having enough water in it drainage to form a wash flow.

A well-known design of a washing well by Fabekun Kanalrohrsys-teme, which is a tank for accumulating storm water falling into it, consisting of a prefabricated element installed as a regular drainage well ring on its lower part, or when constructing new drainage, the washing well ring is built into the drainage design well (Fabekun Kanal-rohrsysteme product overview. Copyright Funke Kunststoffe GmbH 2006). At a certain level of filling such a well with storm water, a drain automatic device, for example, a float mechanism, opening a hole in the bottom of the washing well, is triggered, and a quick discharge into the drainage network occurs, carrying out its hydraulic flushing.

According to the greatest number of similar features and the result achieved using the given technical solution is selected as a prototype of the claimed technical solution.

The disadvantage of the prototype is that the inclusion in the work of this design depends on the time of loss and the rate of accumulation of stormwater and is not related to the mode of operation of the hydraulic structure and the required frequency of cleaning the drainage. In addition, with natural storm runoff, additional natural and technogenic pollutants (mechanical, chemical, biological, trash) can enter the drainage.

The technical result, which is achieved by the claimed utility model, is to increase the efficiency of drainage structures and their service life in the conditions of deposition in the drainage cavity of soil and silt particles, as well as insoluble compounds of iron and manganese.

To achieve the indicated technical result, in batch-type self-washing drainage including a storage tank for accumulating washing water, connected by an automatic drainage device to a viewing drainage well of a washed drainage, a storage tank designed for hydraulic washing of the drainage and collecting filtering water, and also having its own inspection well, is located in the body of the soil dam in the zone of seasonal increase in the surface of the depression, but outside the filtration zone zo- and manganese-containing water has on its circumference openings for collecting rainwater seepage water, protected from the inverse filter and silting protective filter material.

Distinctive features of the proposed self-cleaning drainage of periodic action from the above prototype is the location of the accumulating tank in the body of the soil dam in the zone of seasonal increase in the surface of the depression and outside the filtering zone of iron and manganese-containing water, the location around the perimeter of this tank of water-receiving openings protected from silting by a reverse filter and protective filtering material, connecting the tank through a siphon to the inspection well of the washed drainage.

Due to the presence of these signs during the washing of the drainage, the accumulating capacity, with an increase in the level of the surface of the depression in the dam body, is filled with purified filtration water. Therefore, to fill the storage tank does not require additional sources of water. Connecting the tank to the inspection well of the flushed drain, for example, through a siphon, makes flushing the drain automated and does not require the involvement of additional people and mechanisms. The washing frequency ensures the removal of insoluble compounds of iron and manganese already at the initial stage of their formation, when they are still in the form of friable-plastic formations, as well as the removal of soil and clay deposits, while avoiding their caking. The return filter with protective filtering material protects the water inlet openings and the storage tank from siltation.

The proposed self-cleaning drainage of periodic action is illustrated by the drawing, which shows a diagram of self-cleaning drainage of periodic action.

The self-washing periodic drainage contains a soil dam 1, a storage tank 2, which accumulates filtration water, a zone of seasonal increase in the surface of the depression 3, a viewing well 4 of the storage tank 2 for inspection and repairs, water inlets 5, which are protected from silting by a reverse filter 6 and a protective filtering material 7, an automatic drainage device, for example, a siphon 8 with which a storage tank 2 is connected to the inspection drainage well 9 of the washed drainage 10, siphon H 8 is triggered when the accumulating capacity reaches level 11.

Self-washing periodic drainage works as follows.

In the storage tank 2, located in the body of the soil dam 1 in the zone of seasonal increase in the surface of the depression 3, but outside the filtration zone of iron and manganese-containing water to prevent its clogging by insoluble compounds of these elements, through water inlets 5, protected by a return filter 6 and a protective filter material 7, filter water comes. When the water in the storage tank 2 reaches a certain level 11 (calculated by the diameter of the washed drainage), a siphon 8 is activated, through which the storage tank 2 is quickly emptied into the inspection drainage well 9 and the drainage is hydraulically flushed to remove accumulated deposits along the washed drainage paths 10.

The filtration water used for flushing the drainage is always in the body of the soil dam 1 and must be drained from it through the drainage. Since the cycle of seasonal increase in the surface of depression 3 (time and duration) for a soil dam is known, the volume of storage tank 2 can be calculated in accordance with the required frequency of drainage flushing.

The proposed utility model can significantly increase the service life and increase the efficiency of drainage structures by preventing siltation by soil and silt particles, as well as insoluble compounds of iron and manganese.

Claims (1)

Self-washing drainage of periodic action, including an accumulation tank for accumulating washing water, connected by an automatic drainage device to the inspection drainage well of the washed drainage, and a manhole of the accumulating tank, characterized in that the accumulation tank intended for hydraulic washing of the drainage and accumulating filtering water is located in the body soil dam in the zone of seasonal increase in the surface of the depression, but outside the filtration zone of iron and manganese in d has on its circumference openings for collecting rainwater seepage water, protected from the inverse filter and silting protective filter material.