RU79583U1 - PUMPING STATION - Google Patents

Abstract

The proposed utility model relates to pumping stations of drainage systems and can be used to supply activated sludge to aeration station facilities.

The technical result is to increase the productivity of the pumping station, which is achieved due to the fact that its composition additionally includes circulation pumps located in the receiving tank, placed in a vertical pipe equipped with a mounting hatch in the upper part and passing into the falling pipe, the lower end of which is lowered into the pipe from the receiving tank silt.

Description

The utility model relates to pumping stations of wastewater systems and can be used to supply activated sludge to aeration station facilities.

Known sewage pumping station [1] containing the engine room with a pump, a supply pipe, as well as a suction pipe, a supply pipe, a pipe for removing gases in the upper part of the degassing chamber and air ducts, one of which is supplied to the degassing chamber, and the other to the supply pipe .

Also known is a sewage pumping station [2], including a receiving tank with suction pipelines, an engine room with pumping units and pressure pipelines.

Known sewage pumping station [3], including a supply pipe, a receiving tank, consisting of at least two tanks with sensors of the lower and upper levels, the engine room with pumps and a device for turning them on and off.

There is a borehole pumping unit [4] containing a submersible pump installed in a borehole on a pipe string, a submersible motor, an electric power cable passed along the pipe string, connected at the surface to a submersible motor operation control station.

Closest to the proposed solution in terms of technical nature and the achieved result is a pumping station for active sludge supply [5] taken as a prototype, consisting of a pump room with pumping units located in it, consisting of active sludge circulation pumps, the inlet of which is connected to the suction pipe and the outlet - with a by-pass collector, a receiving tank of activated sludge with a suction intake device located in it

the pipeline and the inlet pipe for the supply of activated sludge, which consists of active biomass suspended in water.

These pumping stations are major construction projects that do not allow, without substantial work and costs, to increase the pressure and productivity of the station as a whole.

When pumping activated sludge, if the pressure at the pump inlet is lower than critical, a significant amount of free gas can enter the pump, which will lead to a breakdown in the pump flow. In this case, the pump flow drops to zero. The process of disruption of the feed is stable and without special measures, the transition of the installation to normal mode is almost impossible. The operation of the installation in the mode of interruption of supply leads, first of all, to overheating of the electric motor, pump and power supply cable in the area of the pump. In addition, individual pump units will operate in dry friction mode. All this leads to a sharp decrease in the durability and reliability of the installation.

The technical result is to increase the productivity of the pumping station.

This technical result is achieved due to the fact that the pumping station for the supply of activated sludge additionally contains circulation pumps located in the receiving tank, placed in a vertical pipe equipped with a mounting hatch in the upper part and passing into the falling pipe, the lower end of which is lowered into the sludge taken from the receiving tank .

The invention is illustrated by drawings (figure 1), where: figure a) shows the location of the nodes of the station - top view, and figure b) is a fragment of a notch in the direction AA.

The proposed pump station contains (Fig. 1) a pump room 1 with pump units located in it, consisting of sludge circulation pumps 2, the inlet of which is connected to the suction pipe 3 and the outlet to a by-pass collector 4, a receiving tank of activated sludge 5 with it suction pipe intake device 6 and activated sludge inlet pipe 7 and submersible pumps 8, placed in a vertical pipe 9, equipped with a mounting hatch 10 in the upper part and passing into the falling pipe 11 connected to

outlet manifold 4, covered by a protective casing 12, and the lower end of the pipe is lowered into the sludge 13 taken from the receiving tank.

The station operates as follows.

Through the feed pipe of activated sludge 7, it enters the receiving tank 5, from which through the intake device 6 through the suction pipe 3 through the sludge circulation pumps 2 it enters the outlet collector 4. If this mode of the pumping station does not provide the desired amount of activated sludge to the collector 4 13, then connect the vertical submersible pumps 8, which through pipes 9 through the falling pipe 11 pump an additional stream of activated sludge into the collector 4.

List of references

1. Borisov D.M. Sewer pump station. Application for the invention of the Russian Federation No. 2004180803 // Bulletin "Inventions. Utility Models »from 01/27/2006

2. Dolzhenko L. A., Karenina A. S., Karpekina E. S., Nikiforova G. V., Eremina L. V., Artsishevskaya O. A., Fedko E. V. Sewer pump station. Patent for the invention of the Russian Federation No. 2188285 // Bulletin "Inventions. Utility models ”from 08.27.2002

3. Teplitsky A.Kh., Brodsky A.L., Endovtsev I.V., Pazin V.V. Sewer pump station. Patent for the invention of the Russian Federation No. 2102563 // Bulletin "Inventions. Utility models ”from 01.20.1998

4. Libkin M.Ya. Well pumping unit. Patent for the invention of the Russian Federation No. 2285155 // Bulletin "Inventions. Utility models ”from 10.10.2006

5. Sewage disposal and treatment of St. Petersburg. Number of authors. St. Petersburg: Stroyizdat, 1999. -424 p.

Claims (2)

1. A pumping station comprising a pump room with pumping units located therein, consisting of sludge circulation pumps, the inlet of which is connected to the suction pipe, and the outlet to the by-pass manifold, an active sludge receiving tank with a suction pipe intake device and an inlet pipe activated sludge supply, characterized in that the activated sludge receiving tank further comprises submersible pumps placed in a vertical pipe equipped with a mounting hatch in the upper part and a transition casing into the falling pipeline connected to the by-pass collector, the lower end of the pipe being lowered into the sludge taken from the receiving tank. 2. The pumping station according to claim 1, characterized in that the submersible pumps placed in a vertical pipe and the falling pipe are covered with a protective casing.