RU197540U1 - OIL SEPARATOR - Google Patents

Abstract

The utility model relates to devices for wastewater treatment containing suspended contaminants and oil products, and can be used in the construction of new and reconstruction of existing wastewater treatment plants in oil refining, oil production, petrochemical, chemical, engineering and other industries. The oil separator-sump includes a horizontally oriented cylindrical body with end bottoms, a horizontally oriented block of thin-layer modules of inclined plates installed in the central part of the body with the organization of the cross movement of the released oil products and sludge in relation to the flow of water, perforated distribution partitions installed respectively on the entrance to the block of thin-layer modules of the source water and the outlet of the purified water from the said unit, the source water supply section, the purified water collection, oil product collection and sludge collection, located on the periphery of the housing, where the source water supply and purified water outlet sections are limited by the inner surface of the housing and the said distribution perforated partitions and provided with perforated pipelines arranged parallel to the longitudinal axis of the housing, the oil collection section is located above the thin-layer module unit, and the sludge collection section is located under a block of thin-layer modules. The claimed utility model makes it possible to efficiently purify contaminated water from oil products and suspended solids by organizing the cross-movement of the separated oil products and suspended solids with respect to the flow of moving water, which provides greater efficiency in using the internal volume of the oil separator-settler, and, accordingly, greater productivity in comparison with the known oil separators.

Description

FIELD OF TECHNOLOGY

The utility model relates to devices for wastewater treatment containing suspended contaminants and oil products, and can be used in the construction of new and reconstruction of existing wastewater treatment plants in oil refining, oil production, petrochemical, chemical, engineering and other industries.

BACKGROUND

Utility Model Patent RU 126956 discloses an oil separator-settler comprising a horizontally oriented prismatic housing containing blocks of thin-layer modules mounted obliquely with the cross-movement of the released oil products and suspended solids with respect to the flow of moving water. The internal space of the housing is divided along the length into cells, in each of which blocks of thin-layer modules are placed perpendicular to the horizontal axis of the apparatus. The distribution of water over the cross section of the blocks is provided by perforated partitions at the inlet and outlet of the blocks. Devices for supplying the source and removal of purified water are located outside along the side walls of the housing and are made in the form of collectors with nozzles connected to each cell. The removal of captured petroleum products occurs through pipes in the upper part of each cell, connected by a collector located outside the apparatus. The discharge of sludge (sediment) occurs through the nozzles in the lower part of each cell, connected by a collector located outside the apparatus.

The disadvantages of the model are the high metal consumption due to the stiffeners of the apparatus and the inability to operate at pressures above 0.25 MPa due to strength limitations.

Closest to the proposed is the invention according to patent RU 2506110, including a horizontally oriented cylindrical body, in which a block of thin-layer modules of plates is installed, placed obliquely to the side wall of the oil separator body. In the space formed by the side wall of the oil separator and the inclined block of thin-layer modules at the inlet of the apparatus, a flocculation reaction chamber expanding upward is provided, in which a supply longitudinal pipe is located with holes directed upward along the side wall of the housing and along the surface of the block of thin-layer modules. In the space formed by the side wall of the apparatus and the inclined block of thin-layer modules at the outlet of the apparatus, an upwardly narrowing chamber for removing purified water is provided, in which there is a discharge longitudinal pipe with holes directed down along the side wall of the housing and along the surface of the block of thin-layer modules. Variants of inputting the supply and outlet longitudinal pipes of both the end of the apparatus and the side surface are provided.

With the indicated options for water supply and collection, the block of thin-layer modules of the apparatus operates in countercurrent mode with respect to the released oil products and in passing - with respect to the allocated suspended contaminants (sludge).

The disadvantage of this device is its limited performance. Since the size limit of the device is determined by the possibilities of transporting it by road, and a further increase in productivity can be achieved only by increasing the length of the device, all this will significantly complicate the delivery of the oil separator in the finished form, or require assembly work at the installation site.

These shortcomings can create certain technical problems when implementing a utility model.

DISCLOSURE OF THE ESSENCE OF A USEFUL MODEL

The objective of the utility model is to eliminate the technical problems inherent in the well-known technical solution, namely: increasing the productivity of the oil separator-sump with low metal consumption and the possibility of delivering the unit in finished form by road.

The problem is solved in that the oil separator-sump, includes:

horizontally oriented cylindrical body with end bottoms;

a horizontally oriented block of thin-layer modules of inclined plates installed in the central part of the housing with cross-movement of the emitted petroleum products and sludge in relation to the flow of water,

perforated distribution partitions installed, respectively, at the entrance to the block of thin-layer modules of the source water and at the outlet of the purified water from the said block,

sections for supplying raw water, collecting purified water, collecting oil products and collecting sludge located on the periphery of the housing, where the sections for supplying raw water and the outlet of purified water are limited by the inner surface of the housing and the said distribution perforated partitions and provided with perforated pipelines arranged parallel to the longitudinal axis of the housing, section the collection of petroleum products is placed above the block of thin-layer modules, and the section of the collection of sludge is placed under the block of thin-layer modules.

In private embodiments of the oil separator, bunkers with hatches connected to each other by a pipeline for collecting oil products may be placed in the oil product collection section.

The sludge collection section of the oil separator may be provided with a perforated conduit for discharging sludge.

The input of the perforated pipeline of the source water supply section and the output of the perforated pipeline of the purified water outlet section of the claimed oil separator can be placed in opposite end faces of the housing.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 schematically shows a General view of the oil separator-sump in a longitudinal section aa.

In FIG. 2 schematically shows a top view of an oil separator.

In FIG. 3 is a schematic view of an oil separator in longitudinal section BB.

Positions mean the following.

1. The cylindrical housing of the oil separator.

2. End bottoms of the housing.

3. Block thin-layer modules.

4. Inclined plate.

5. A perforated partition bounding the feed water supply section.

6. Perforated partition, limiting the outlet section of purified water.

7. Feed water section.

8. The outlet section of purified water.

9. Section for the collection of petroleum products.

10. Sludge collection section.

11. Perforated piping of the feed water supply section.

12. Perforated piping of the purified water removal section.

13. Bunkers with hatches.

14. The pipeline for the collection of oil.

15. Perforated pipe for the output of sludge.

16. The branch pipe for the removal of petroleum products.

17. Slurry discharge pipe and emptying.

18. Hopper for discharge of sludge and emptying.

IMPLEMENTATION OF A USEFUL MODEL

The oil separator-sump includes a horizontally oriented cylindrical body (1) with end bottoms (2) (see Fig. 1 and 2).

A horizontally oriented block of thin-layer modules (3) from inclined plates (4) is installed in the central part of the housing (1).

At the entrance to the block of thin-layer modules (3) of the source water and at the outlet of the purified water from it, perforated distribution partitions are placed (5, 6). The installation of these partitions allows you to evenly distribute the water flow over the section of blocks of thin-layer modules (3).

On the periphery of the casing (1) are located (see Fig. 3) sections for supplying raw water (7), collecting purified water (8), collecting oil products (9) and collecting sludge (10). The feed water supply sections (7) and purified water outlet (8) are limited by the inner cylindrical surface of the housing (1) and distribution perforated partitions (5, 6). Sections (7, 8) are equipped with perforated pipelines, respectively, for supplying source water (11) and for discharging purified water (12) placed parallel to the longitudinal axis of the casing. The dynamic pressure of the jets of water exiting through the holes of the perforated feed pipe is damped by reflection from the inner surface of the side wall of the apparatus.

The feed water supply section (7), arranged in accordance with the foregoing, essentially has the functions of a flocculation chamber - in this section, oil particles and sludge in suspension are aggregated due to coalescence, which contributes to more efficient removal of thin-layer modules in the block ( 3).

The plates (4) are installed in thin-layer modules (3) at an angle of 55-60 degrees to the horizontal plane in such a way that cross-flow of suspended solids and oil products is ensured in relation to the flow of purified water, which is directed from one perforated pipeline (11) to another (12).

Inputs of perforated pipelines (11, 12) can be placed both in opposite end bottoms (2), and in one, which is determined by the installation conditions of the apparatus at the place of operation. Placing the pipelines (11, 12) in the end bottoms (2) allows them to be easily removed from the oil separator body (1) for cleaning.

Collected oil products are collected in the oil products collection section (9) located in the upper part of the housing (1) above the block of thin-layer modules (3). In the oil products collection section (9), silos with hatches (13) are placed, interconnected by a pipeline (14) for collecting oil products.

The section for collecting sludge (10) is placed under the block of thin-layer modules (3). Sludge (sediment) is collected by a perforated pipe (15) located inside the housing (1) at the bottom with an outlet through the end wall (2), which ensures its removal for cleaning.

The utility model works as follows.

Feed water is supplied to the oil separator housing (1) via a perforated pipe (11) with an overpressure entering the housing (1) through the end plate (2). After leaving through the holes in the pipeline (11), water enters the feed water supply section (7), limited by a perforated partition (5) that distributes the water flow evenly over the section of blocks of thin-layer modules (3). The plates (4) of the thin-layer modules are arranged according to the cross-motion pattern of the released oil products and sludge relative to the water flow. The petroleum products that emerged in the blocks of thin-layer modules (3) enter the oil product collection section (9), then to the bunkers (13) located in the upper part of the apparatus body, interconnected by a pipeline (14). From bunkers, petroleum products are discharged under pressure through a pipe (16). The sludge settled in the blocks of thin-layer modules (3) slides to the bottom of the oil separator body, from where it is discharged through a perforated pipeline (15). The device is emptied as through a pipe (17) installed on the sludge discharge and discharge tank (18). After blocks of thin-layer blocks, water passes through a perforated baffle (6) to the purified water outlet section (8), after which it enters the perforated water discharge pipe (12), which drains the purified water from the oil separator through the end face (2).

The cross-flow diagram of the work of the thin-layer block is organized by the mutual arrangement of the perforated pipes inclined at an angle of 55-60 degrees to the horizontal plane, as well as the perforated pipes so that when they exit the openings of the water supply pipe (11), they fall into the space between the inclined plates (previously distributed uniformly over the working area due to perforated partitions (5)) and did not change its trajectory, i.e. continued to move horizontally until it exited the block to the perforated pipe (12). This mode is possible with a single mutual arrangement above the designated elements.

As follows from the data presented, the claimed oil separator allows you to effectively clean contaminated water from oil products and suspended solids by organizing the cross-movement of the separated oil products and suspended solids with respect to the flow of moving water, which provides greater efficiency in the use of the internal volume of the oil separator-settler, and, accordingly, a large performance compared to well-known oil separators.

Claims (9)

1. Oil separator-sump, including: horizontally oriented cylindrical body with end bottoms; a horizontally oriented block of thin-layer modules of inclined plates installed in the central part of the housing with cross-movement of the emitted petroleum products and sludge in relation to the flow of water, perforated distribution partitions installed, accordingly, at the entrance to the block of thin-layer modules of the source water and at the outlet of the purified water from the said block, sections for supplying raw water, collecting purified water, collecting oil products and collecting sludge located on the periphery of the housing, where the sections for supplying raw water and the outlet of purified water are limited by the inner surface of the housing and the said distribution perforated partitions and provided with perforated pipelines arranged parallel to the longitudinal axis of the housing, section the collection of petroleum products is placed above the block of thin-layer modules, and the section of the collection of sludge is placed under the block of thin-layer modules. 2. The oil separator according to claim 1, wherein bunkers with hatches are placed in the oil product collection section, interconnected by a petroleum product collection pipeline. 3. The oil separator according to claim 1, wherein the sludge collection section is provided with a perforated pipe for discharging sludge. 4. The oil separator according to claim 1, wherein the input of the perforated pipeline of the source water supply section and the output of the perforated pipeline of the purified water outlet section are placed in opposite end faces of the housing.

Images