RU30292U1 - Modular mobile washing unit for washing the inside of the tank from dirt - Google Patents

Description

A modular mobile washing unit for cleaning the inside of the tank from contamination.

This utility model relates to devices designed for cleaning using detergent solutions and can be used to wash containers of any shape and volume from railroad and inorganic nature: railway and gas tank trucks, sea tankers, etc.

A known installation for cleaning reservoirs from under petroleum products, containing a sealed container for washing solution with a thin-layer sedimentation system, vacuum and pressure pumps and piping lines, a washing head, a tank for storing sludge and collected oil product. The washing liquid is cleaned of mechanical impurities by a vacuum hydroclone mounted on the suction line of the pipeline, the outlet pipe of the hydrocyclone is connected to your IAC line, and the ejector pipe is connected to the discharge line of the pipeline (Auth. Certificate. USSR No. 1639801, published April 7, 1991). A known installation for cleaning tanks, containing a tank for the liquid to be cleaned, a spray bottle, a vacuum pump to create a vacuum and a collector for a mixture of liquid with solid particles coming with a washing solution from the tank.

The installation also includes a separator for separating solid particles, a centrifuge, an extruder mixer. The liquid clarified in a centrifuge is recycled for subsequent purification. The installation may contain a scrubber and a heat exchanger for heating the cleaning solution (UK application No. 2179243 publ. 04.03.1987 No. 9).

There is also known an installation for washing tanks and for extracting residual liquid from a tank, which contains, in addition to means for supplying washing water to the tank, a generator for supplying inert gas there too, while the means for suctioning and pumping out the residual liquid is located on one vehicle, means for separating the mixture and the detergent water supply - on drztom, and the inert gas generator - on the third (Russian Patent No. 2099156, publ. Z. -).

A device for cleaning tanks from viscous oil deposits and oil products, containing means for heating, liquefying. moving said deposits, including ejector means and means for draining and transporting liquefied deposits. Ejector

the tool is made in the form of a monitor consisting of a hollow rod for supplying washing steam or gas or liquid through it to the tank, and at least one ejector head, the axis of which is located at an angle to a plane perpendicular to the axis of the rod (Russian Certificate for Utility Model No. 25176 published on September 20, 2002). All known installations and devices for cleaning the inner surface

tanks work under condition of preliminary heating of tanks, or with

using hot water or hot steam.

The closest analogue

the proposed model is a installation for cleaning hard surfaces

from pollution, (RF Patent No. 2170630, publ. Bull. Inventions JsT / 20, 2001 - prototype). The installation consists of a tank for preparing a clean washing solution with built-in bottom steam registrars or electric heaters for heating the solution, a pump for supplying heated washing solution to high pressure washers installed in a washable tank and a collection tank with an overflow valve installed at the liquid level. The collecting tank is connected by a pipeline to the tank of the clean solution at a level below the mid-height of both tanks to allow the solution to be transferred from the collection tank to the tank of the clean solution. The installation provides a closed schpsl work without stopping it, providing a high degree of washing. The disadvantage of the washing installation of the prototype is that in the presence of even an insignificant amount of mechanical impurities in the solution after cleaning, they settle to the bottom of the collecting tank and, falling into the pipeline, disable the pumps and the washer, which ultimately leads to the shutdown of the process. In addition, the air supplied to the collection tank through the openings located in its lower part of the pipeline brings to suspension suspended solids in the solution being cleaned, which also

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SHMo2 complicates the washing process. The task in developing the proposed utility model was to simplify its technological scheme, quickly and efficiently clean the walls of containers from pollution, including mechanical ones, with the possibility of new use of washing solution, as well as the use of washed pollution (oil products insoluble in water) by their intended use. The problem was solved and the goals were achieved using the proposed mobile mobile washing installation, the scheme of which is shown in Fig. - / 4, The installation consists of a tank / two pumps, pipelines with fittings and a washing machine. The attached figure shows the installation in a static state. Capacity A is divided by partitions into four compartments. Compartment 1 - for a clean or purified detergent solution. the compartment is 1/3 of the capacity. Compartment 2 - for settling insoluble products (oil products) from the washing solution, its volume is about 1/3 of the volume of the tank. Compartment 3 is located inside compartment 2 and serves as a collector for oil products; The total volume of compartment 2 and compartment 3 makes 1/3 of the tank capacity. Compartment 4 - for the initial sedimentation of oil products from a washable washing solution and removal of mechanical impurities precipitated. Compartment 2 and compartment 4 communicate with compartment 3 through windows 5 and 6. Inside compartment 4, at least two rotary partitions 7 are installed at a slope, the height of which does not reach the top of the compartment and the windows 6. Pipelines 8 and 9 connect compartments 1, 2 and 4. Gates 10 and 11 are installed on the pipelines. The pipelines connecting the tank, pumps 12 and 13 and the tank are equipped with gates 14, 15, 16, 17, 18, 19, 20.

Inside the tank in its upper part, a washing mapper 21 is installed, containing a valve for regulating the amount of supplied washing solution and pressure.

The proposed modular mobile installation works as follows. After the necessary connections of the installation to the mains, compressed air line, installation of the washing machine 21 in the tank, connection of the tank by piping to the installation, the solution is heated with MOUTIONS to a predetermined temperature and poured into compartment 1. Heated solution from compartment 1 by pump 12 through open gates 14 and 17 (in at this moment the closures 15, 16 and 18 of the closure) are fed through a washing machine 21 to the tank for washing it. A washing solution contaminated with oil products and mechanical impurities (sand, earth, small wood inclusions, etc.) is pumped through a drain pipe in a tank through a valve 19 to a compartment 4, through which the oil is exfoliated) through a pipe 13 with a pump 13 and sedimentation impurities . Exfoliated petroleum products through window 6 are poured into compartment 3 (collection of petroleum products). From compartment 4, the solution through a pipeline 9 with a shutter 11 is poured into compartment 2 for final cleaning of oil products. Petroleum products through the window 5 are poured into compartment 3, and the cleaned washing solution is returned to compartment 1 through pipeline 8 through the shutter 10. Petroleum products from compartment 3 are periodically shutter 20 pumped out as they accumulate and can be used without additional purification as fuel.

The precipitate, consisting of mechanical impurities, is unloaded manually from compartment 4 also as it accumulates. For this, the entire solution from compartment 4 is pumped into the cleaned tank by pump 12 through the gates 16 and 17 (at this moment the gates 14,15,18 and 11 are closed). After unloading sediment from

compartment 4, the washing solution from the tank pump 13 is returned to compartment 4. Using the proposed installation allows you to:

-Highly efficiently and efficiently wash tanks from oil pollution;

- to carry out washing without prior heating of tanks, as well as hot water and steam:

- as a result of washing, do not have wastes requiring disposal or polluting the environment;

- quickly bring the unit into operation after a) standstill;

SDO (

Claims (2)

1. A modular mobile washing installation for cleaning the inner surface of the tank from contaminants, including a washer installed inside the tank, connected by a pipeline to the settling tank at a level below the sludge line of the solution being washed, characterized in that the settling tank is divided by partitions into 4 compartments, the first of which serves for the initial filling of clean washing solution and its entry during the operation of the installation, the second for collecting liquid insoluble contaminants and the third for washing the sludge washing solution and the precipitation of mechanical impurities, inside the second compartment there is a fenced-off collector for accumulating liquid insoluble contaminants, the volume of which is no more than 1/8 of the volume of this compartment, and at least two vertical partitions are installed inside the third compartment at an angle to its surface, not reaching the top of the compartment, all compartments are interconnected by overflow and equipped with windows for visual observation of the level of sediment impurities. 2. Installation according to claim 1, characterized in that the washer is installed on the inner upper surface of the tank to be cleaned and contains a valve that regulates the amount of supplied washing solution and pressure.