RU85173U1 - DEVICE FOR WASTE WATER TREATMENT FROM OIL PRODUCTS - Google Patents

Abstract

1. A device for treating wastewater from petroleum products, containing a container divided by partitions into chambers; nozzles connecting the chambers through a system of interconnected vessels; an ∩-shaped outlet pipe located in one chamber and provided with a breathing tube at the top of the inflection, the inlet of the pipeline being located inside the hollow cylinder, and the outlet through the nozzles and funnel connected to an expander mounted vertically in another chamber and provided with a protective nozzle, the upper edge of which is located above the inflection level of the ∩-shaped pipeline, characterized in that the ∩-shaped pipe is installed with a turn in plan at an angle α relative to ial connections. ! 2. A device for treating wastewater from petroleum products according to claim 1, characterized in that the turn of the ∩-shaped pipeline relative to the connecting pipes is made left-side. ! 3. A device for treating wastewater from petroleum products according to claim 1, characterized in that the turn of the ∩-shaped pipeline relative to the connecting pipes is made right-handed.

Description

The utility model relates to the field of wastewater treatment and can be used in sewer systems of settlements, industrial enterprises for wastewater treatment of storm sewers from oil products, discharged industrial effluents.

The utility model can be used both in the construction of new sewage systems, and in the reconstruction of existing ones in order to improve the environmental situation.

A device for separating two immiscible liquids with different specific gravity is made in the form of a vessel with a coalescing filter mounted in it and vertical partitions forming a hydraulic shutter on the opposite side of the filter, with perforated horizontal partitions with a central hole, and also a funnel for draining liquid with lower specific gravity. In the upper part of the funnel, a protective pipe is installed coaxially with it, the height of which is chosen so that its lower hole is below the level of the hydraulic shutter, but does not extend beyond the element separating it, and the upper hole is higher than the upper hole of the funnel (USSR copyright certificate No. 194573 on invention "Device for the separation of two immiscible liquids with different specific gravity" publ. March 20. 1967, IPC B63b, E03f). The known device is not technologically advanced due to the presence of preliminary cleaning on a coalizing filter, which is deeper than the main cleaning on perforated partitions. In addition, the device does not provide protection against leakage of oil during volley discharge of wastewater.

A device is known for separating two immiscible liquids with different specific gravities, which is a container with a drain pipe and vertical baffles installed in the tank, forming sections-communicating vessels, each specified section contains a coalescent filter buried in the upper part of the specified liquid layer with a lower specific gravity - sorbent filter made removably vertically moving. The tank is cylindrical in shape and has a stream from the periphery to the center, these vertical partitions are ring-shaped. Odd vertical partitions have a lower watercourse, even vertical partitions have an upper overflow. Partitions with a lower watercourse are vertically moving. The drain pipe and the partitions with the upper overflow are equipped with vertically moving annular nozzles, forming a hydraulic resistance system (RF patent No. 2289001 for the invention "Device for the separation of two immiscible liquids of radial type" IPC E03F 5/16, B01D 17/025), publ. December 10, 2006). The known device is characterized by increased bulkiness due to the presence of many partitions.

Known closest to the claimed technical solution for the combination of essential features and selected as a prototype device for wastewater treatment from petroleum products using a liquid with a lower specific gravity as a separating layer. The device comprises a container divided by partitions into chambers; nozzles connecting the chambers through a system of interconnected vessels; ∩-shaped outlet pipe located in one chamber and provided with a breathing tube in the upper part, while the inlet of the pipeline is located inside the hollow cylinder acting as a partition, and the outlet through the nozzles and funnel is connected to an expander mounted vertically in another chamber and equipped with protective pipe, the upper edge of which is located above the bend of the ∩-shaped pipeline (RF patent No. 2108429 for the invention "Device for wastewater treatment from oil products" IPC 6 E03F 5/00, published on 04/10/1998). The known device is more compact and economical in comparison with the above analogue. The disadvantage of this device is the lack of cleaning efficiency. In addition, in some cases, when there are severe restrictions on overall dimensions, for example, in conditions of dense urban development, equipment with smaller dimensions is required.

The task to which the claimed utility model is directed is to create high-quality compact equipment for wastewater treatment from oil products.

Technical results that can be obtained by implementing the inventive utility model are:

- increasing the degree of purification of liquids from oily substances;

- reducing the overall dimensions of the device.

These technical results are achieved in that the device for treating wastewater from petroleum products contains a tank divided by partitions into chambers; nozzles connecting the chambers through a system of interconnected vessels; ∩-shaped outlet pipe located in one chamber and equipped with a breathing tube in the upper part of the inflection. The inlet of the pipeline is located inside the hollow cylinder acting as a partition, and the outlet through the nozzles and funnel is connected to an expander mounted vertically in another chamber and equipped with a protective nozzle, the upper edge of which is located above the bend of the ∩-shaped pipeline. In this case, the ∩-shaped pipeline is installed with a turn in the plan at an angle α relative to the connecting pipes.

In some cases, the execution of the ∩-shaped pipeline can be installed with a left-sided turn in plan at an angle α relative to the connecting pipes.

In other cases, the execution of the ∩-shaped pipeline can be installed with a right-hand turn in the plan at an angle α relative to the connecting pipes.

A comparative analysis of the claimed utility model with the prototype showed that in all cases it is different from the well-known, closest technical solution:

- the establishment of a ∩-shaped pipeline with a turn in the plan at an angle α relative to the connecting pipes.

In some cases, the implementation of the claimed utility model differs from the known technical solution indicated above, which is closest to it:

- a right-hand turn of the ∩-shaped pipeline at an angle α relative to the connecting pipes;

- a left-sided turn of the ∩-shaped pipeline at an angle α relative to the connecting pipes;

The execution of the ∩-shaped pipeline installed with a turn in the plan by an angle α relative to the connecting nozzles allows you to change the movement of wastewater inside the device, which leads to the intensification of the process of enlargement (agglomeration) of fine particles of suspended solids and oil products, intensifying the cleaning process. Experimental tests have shown that at low concentrations of petroleum products in the initial treated wastewater, the degree of purification increases to 3%. In addition, the implementation of the ∩-shaped pipe installed with a turn relative to the connecting pipes allows you to optimize the overall layout of the structural elements of the device, thereby reducing the overall dimensions of the latter without compromising the quality of cleaning.

The proposed device for wastewater treatment from petroleum products is illustrated by the drawings, presented in figures 1, 2.

Figure 1 presents a schematic drawing of a device for wastewater treatment from petroleum products.

Figure 2 presents a schematic drawing of a device for wastewater treatment from petroleum products, view aa in figure 1

A device for treating wastewater from petroleum products contains a tank 1, divided by a partition 2 into chambers I, II. The lower pipes 3, 4 connect the chambers I, II through a system of communicating vessels. The device contains a discharge ∩-shaped pipe 5, located in the chamber I and provided in the upper part of the bend with a breathing tube 6 to equalize the pressure. The inlet of the pipeline 5 is located inside the hollow cylinder 7, which acts as a partition. The outlet of the pipeline 5 through the lower nozzles 3, 4 and the funnel 8 is fixed with a spreader 9, vertically mounted in another chamber II, which is a segment of a round or rectangular pipe with a larger cross-sectional area. The expander 9 is equipped with an upper protective pipe 10 mounted on supports (not shown in the drawing), while the upper edge of the protective pipe 10 is located above the bend level of the ∩-shaped pipe 5. The ∩-shaped pipe 5, the lower pipe 3, a vertical closed partition 7 are located in chamber I. A pipe 4, a funnel 8, an expander 9 with a protective pipe 10 are located in a chamber II, separated by a sealed partition 2 by a chamber I. The lower pipes 3, 4 can be interconnected by a detachable connection, for example, by means of a flange or connectors that allows you to adjust the distance between the chambers I, II. The ∩-shaped pipe 5 is installed with a turn in the plan at an angle α relative to the connecting pipes 3, 4. In some cases, the turning of the ∩-shaped pipe 5 relative to the connecting pipes 3, 5 can be made left-handed. In other cases, the U-turn of the pipe 5 with respect to the connecting pipes 3, 4 can be performed right-handed.

The operation of the device is as follows.

The treated effluents through the inlet pipelines enter the settling chamber I of the treatment device, pre-filled with clean water, in which preliminary separation of the pop-up oil products and water takes place.

Water is taken from the lower, cleaner layer. The liquid through the hollow cylinder 7 enters the ∩-shaped pipe 5 of the device, in the upper part of which accumulations of floating oil products form at the inflection. Sorption of finely dispersed impurities takes place on the suspension thus formed. Installation of a ∩-shaped pipeline 5 with a rotation through an angle α relative to the connecting nozzles 3, 4 provides a change in the movement of waste fluid inside the device, which leads to an increase in the process of enlargement (agglomeration) of fine particles of suspended solids and oil products and the intensification of the cleaning process. To equalize the pressure in the system, a breathing tube 6 is installed at the bend of the pipe 5. Next, the pre-treated drains through the pipe 3 and through the pipe 4, funnel 8, expander 9 enter the settling chamber II. Due to the larger diameter of the expander and as a result of a sharp decrease in the flow rate, a “second suspended layer” of emulsified oil products is formed at its border with the funnel, also sorbing impurities and cleaning wastewater at the next level. A protective branch pipe 10 mounted on top of the supports eliminates the possibility of oil products entering the treated effluents, which, after being cleaned in chambers I and II, enter the city collector through the control well.

Table 1 presents the results of experimental tests of the claimed device. As can be seen from the table, at low concentrations of petroleum products in the initial treated wastewater, the degree of purification increases to 3%.

In addition, the implementation of the ∩-shaped pipe 5 installed with a turn relative to the connecting pipes 3, 4 allows you to optimize the layout of structural elements and provides a reduction in overall dimensions of the device without compromising the quality of cleaning. So, a turn of the ∩-shaped pipeline relative to the connecting nozzles by an angle α equal to 30 ° ensures a reduction in the overall dimensions of the length of the tank 1 by 12%, and when reversed by an angle α equal to 90 °, by 48%.

Comparative table of the results of the operation of devices for wastewater treatment from petroleum products
Table 1 Trapped substances Devices for wastewater treatment from oil products Prototype The claimed Mg / L concentration Degree of purification Mg / L concentration Degree of purification At the entrance At the exit At the entrance At the exit Suspended matter 300 180 40 300 170 43 Oil products 40,0 8 80 40,0 6 85

Claims (3)

1. A device for treating wastewater from petroleum products, containing a container divided by partitions into chambers; nozzles connecting the chambers through a system of interconnected vessels; an ∩-shaped outlet pipe located in one chamber and provided with a breathing tube at the top of the inflection, the inlet of the pipeline being located inside the hollow cylinder, and the outlet through the nozzles and funnel connected to an expander mounted vertically in another chamber and provided with a protective nozzle, the upper edge of which is located above the inflection level of the ∩-shaped pipeline, characterized in that the ∩-shaped pipe is installed with a turn in plan at an angle α relative to ial connections. 2. A device for treating wastewater from petroleum products according to claim 1, characterized in that the turn of the ∩-shaped pipeline relative to the connecting pipes is made left-side. 3. A device for treating wastewater from petroleum products according to claim 1, characterized in that the turn of the ∩-shaped pipeline relative to the connecting pipes is made right-handed.