UA50382C2 - Method for water extraction from water reservoir for water-main pump station of first lift - Google Patents

Abstract

Method for water extraction from water-main pump station of first lift is in use of water-receiver with antechamber of open type, this is equipped with slots for the screen gates. The water extraction from the water reservoir is performed through adjustable flow-through frames, those in their cross-section for water flow are not smaller than the areas of the cross-sections of the inlet openings of the suction pipes of the pumps, and are installed to the slots at needed distance from the bottom of the antechamber and the water level in the water reservoir where the water level is least contaminated. The rest of the area of the inlet vertical cross-section of the antechamber under the flow-through frames and over those is closed by the screen gates installed to the slots. The flow-through frames can be equipped with dirt-collecting grid.

Description

Description of the invention

The invention relates to water intake structures, in particular, to the selection of water from a reservoir and can be used in water pumping stations of the first lift to improve the quality of intake! from the water storage.

There is a well-known method of taking water from a reservoir for a water supply pumping station of the first rise, which consists in using a water receiver with an open-type advance chamber, equipped with grooves for shield shutters, which are inserted into the grooves in case of repair work with drainage of the advance chamber, and 70 garbage-retaining grates. (1).

The disadvantage of the known method is that when it is implemented, bottom layers of water, which, especially in the summer when it is very hot, are heavily saturated with rotting organic products (grasses, algae, blooms, etc.), which settle on the bottom of the storage. A similar phenomenon is observed on the surface of the reservoir from the decay of floating organic products. This fact was, for example, recorded in the Chervopavlovsk water intake at the Siverskyi Donets reservoir by the results of the analysis of water samples taken at different depths in the summer of 2001. This significantly increases the consumption of chemical reagents for water treatment in treatment facilities, its cost, and worsens the quality of drinking water, due to its oversaturation with treatment products.

The basis of the invention is the task of making the method of water selection from the reservoir for the water supply pumping station of the first lift more efficient through the use of adjustable access frames and repair shutters due to the selection and supply to treatment facilities of less polluted middle layers of water from the reservoir, especially in hot weather.

This task is achieved by the fact that in the method of water collection from the reservoir for the water supply pumping station of the first rise, which consists in the use of a water receiver with an open-type forward chamber, which is equipped with grooves for shield shutters and garbage-preventing grates, the collection of water from the reservoir is carried out through adjustable passage frames, which in terms of the cross-sectional area of the passage for water is not less than the cross-sectional area of the inlet (9 holes of the suction pipes of the pumps and are installed in the grooves at the required distance from the bottom of the advance chamber and the water level in the reservoir, where the water layer is the least polluted, and the rest of the area of the entrance vertical section of the advance chamber under the access frames and above them are covered with shield shutters installed in the grooves. At the same time, the access frames can be equipped with garbage retaining grates instead of those installed separately in the van chamber.

This set of new essential features in interaction with the known ones limits the ingress of contaminated bottom or upper layers of water from the reservoir into the advance chamber, pumps and treatment facilities, reduces the consumption of chemical reagents for water treatment and its cost, and also improves the quality of drinking water due to the reduction of Ha in it ») products of processing with its reagents. 3o In Fig. the pump station of the first rise is depicted, which provides the proposed method of water extraction from the reservoir.

The station has an open type 1 advance chamber, which is equipped with grooves 2.

The method is carried out as follows. In the grooves 2 at the required distance H from the bottom of the advance chamber, first several shutters З are installed, then the passage frames 4 for the passage of the middle layers of water from the reservoir and З after that, more shutters З are installed on the passage frames 4 so that their upper edge is above the water level in s reservoir. Due to this, during the operation of the pumping station to it and to the treatment facilities (not shown in Fig.)

The medium layers of water from the reservoir, which are less polluted than the bottom and surface layers, get from it. In order to prevent large objects that may be in the reservoir from getting into the advance chamber, the access frames can be equipped with garbage retaining grates 5, while separate grates are not provided in the advance chamber.

Thus, in addition to ensuring the selection and supply of less polluted layers of water to treatment plants, method i also simplifies the design of the pumping station due to the combination of access frames with grates. av | Sources of information: o 1. N.N. Abramov "Water supply". Moscow. Construction Publishing House, 1974. pp. 190...194. at 50

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Claims (2)

The formula of the invention p 1. The method of water collection from the reservoir for the water supply pumping station of the first lift, which consists in the use of a water receiver with an open-type forward chamber, equipped with grooves for shield shutters and garbage-retaining grates, which is distinguished by the fact that the collection of water from the reservoir is carried out through adjustable access frames, which in terms of the cross-sectional area of the passage for water is not smaller than the cross-sectional areas of the inlets of the suction pipes of the pumps and are installed in the grooves at the required distance from the bottom of the advance chamber and the water level in the reservoir, where the water layer is the least polluted, and the rest of the area of the entrance vertical section of the advance chamber is under the passage frames and over them are covered with shield shutters installed in the grooves. 2. The method according to claim 1, which is characterized by the fact that the access frames are equipped with garbage retaining grates. Official Bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2005, M 4, 04/15/2005. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. - with . and? 1 («c) (95) ge» SHY Ko) ime) 60 b5