CN214936234U - Oil removing tank for oil field produced water treatment - Google Patents
Oil removing tank for oil field produced water treatment Download PDFInfo
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- CN214936234U CN214936234U CN202121758671.6U CN202121758671U CN214936234U CN 214936234 U CN214936234 U CN 214936234U CN 202121758671 U CN202121758671 U CN 202121758671U CN 214936234 U CN214936234 U CN 214936234U
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Abstract
The utility model provides a deoiling tank for oil field produced water treatment, which relates to the technical field of oil field produced water treatment, and comprises a tank body; a central cylinder in the vertical direction is arranged in the tank body and connected with the bottom of the tank body; a partition plate is arranged inside the central cylinder; the central cylinder is divided into a water inlet cylinder at the upper end and a water outlet cylinder at the lower end by the partition plate; one side of the water inlet cylinder, which is close to the partition plate, is connected with a water inlet pipe; one end of the water inlet pipe, which is far away from the water inlet barrel, extends out of the tank body; one side of the water inlet cylinder, which is far away from the partition plate, is connected with a plurality of water inlet distribution branch pipes; one side of the water outlet barrel, which is close to the partition plate, is connected with a plurality of water outlet distribution branch pipes; one side of the water outlet barrel, which is far away from the clapboard, is connected with a water outlet pipe. The utility model discloses an deoiling jar has the characteristics of operate steadily, overhaul and maintain convenience, the effectual of oil-water separation.
Description
Technical Field
The utility model relates to an oil field extraction water treatment technical field especially relates to a deoiling jar for oil field extraction water treatment.
Background
The oil removal tank is the most front-end treatment equipment in the oilfield produced water treatment process and is also the most important equipment, the oil removal effect of the oil removal tank directly influences the normal operation of subsequent treatment equipment and the treatment indexes of the whole process, and the design of an oil removal tank water inlet pipe, a water outlet pipe, a central cylinder and an oil collection tank is particularly critical.
In the existing design, a central cylinder is of a ring-shaped structure, oily sewage enters a ring-shaped interlayer of the central cylinder from bottom to top through a water inlet pipe and then enters a water inlet distribution branch pipe arranged at the upper end of the ring-shaped interlayer through the ring-shaped interlayer; the front end of the water inlet distribution branch pipe is provided with a bell mouth with a downward direction, and oily sewage flows downwards into the oil removal tank through the bell mouth. The water outlet distribution branch pipe is connected with the inner cylinder of the central cylinder and is used for collecting the deoiled sewage, the deoiled sewage flows out of the deoiling tank through a water outlet pipe arranged on the inner cylinder, and the water outlet pipe is designed from bottom to top. The oil collecting groove is of a straight-edge structure.
Existing designs; the annular interlayer space of the central cylinder is narrow, operators cannot enter the central cylinder, incomplete welding, uneven painting, incomplete cleaning and maintenance and serious local corrosion in long-term operation are caused; the bell mouths of the water inlet distribution branch pipes face downwards, so that the rising of dirty oil and suspended matters is easily blocked, the distribution is uneven, and the separation effect is influenced; the sewage after oil removal enters the water outlet pipe from bottom to top and then flows out of the oil removal tank from top to bottom, so that the situation that the fluid in the pipe is not fully filled easily occurs, slug flow is formed, the operation is not stable, the cavitation of the centrifugal lifting water pump is caused, and the impeller of the pump is damaged; the oil receiving groove is of a straight-edge structure, so that bias flow is easily caused, dirty oil is accumulated in one area, and the separation effect is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an deoiling jar for oil field extraction water treatment to solve above-mentioned technical problem.
In order to achieve the purpose, the oil removing tank for treating the oilfield produced water comprises a tank body; a central cylinder in the vertical direction is arranged in the tank body and connected with the bottom of the tank body; a partition plate is arranged inside the central cylinder; the central cylinder is divided into a water inlet cylinder at the upper end and a water outlet cylinder at the lower end by the partition plate; one side of the water inlet cylinder, which is close to the partition plate, is connected with a water inlet pipe; one end of the water inlet pipe, which is far away from the water inlet barrel, extends out of the tank body; one side of the water inlet cylinder, which is far away from the partition plate, is connected with a plurality of water inlet distribution branch pipes; one side of the water outlet barrel, which is close to the partition plate, is connected with a plurality of water outlet distribution branch pipes; one side of the water outlet barrel, which is far away from the partition plate, is connected with a water outlet pipe; one end of the water outlet pipe, which is far away from the water outlet barrel, extends out of the tank body.
Further, a plurality of first bellmouths which are upward in direction are arranged on the water inlet distribution branch pipe.
Furthermore, a plurality of second bellmouths which are downward are arranged on the water outlet distribution branch pipe.
Furthermore, one end of the water outlet pipe, which is far away from the water outlet barrel, extends out of the upper side of the tank body and then is connected with the buffer tank; a water inlet is arranged at the upper side of the buffer tank; a water outlet is arranged at the lower side of the buffer tank; the water inlet is connected with the water outlet pipe; the water outlet is connected with a water pump.
Furthermore, one side of the water inlet cylinder, which is close to the partition plate, is also provided with a first manhole; one side of the water outlet barrel, which is close to the bottom of the tank body, is provided with a second manhole.
In addition, the upper end of the water inlet distribution branch pipe is provided with an oil receiving groove connected with the water inlet cylinder; an overflow weir is arranged between the oil receiving groove and the tank body; the bottom of the oil collecting groove is connected with an oil outlet pipe, and one end of the oil outlet pipe, which is far away from the oil collecting groove, extends out of the tank body.
Preferably, the upper surface of the overflow weir is of a sawtooth structure.
The utility model discloses an deoiling jar compares prior art and has following beneficial effect:
the central cylinder is designed into an upper-layer structure and a lower-layer structure, so that the welding, painting, cleaning and maintenance are more convenient compared with an annular structure; the first bell mouth of the water inlet distribution branch pipe is upward, and the oily sewage is in an ascending flow state, so that the separation of the dirty oil and suspended matters from water is easy, and the separation effect is improved; the buffer tank is additionally arranged to be connected with the water outlet pipe, so that the water pump can stably run without cavitation, and the water pump can be effectively protected; the overflow weir is designed into a sawtooth structure, so that oil can be uniformly collected, and the oil-water separation effect is improved. The utility model discloses an deoiling jar has the characteristics of operate steadily, overhaul and maintain convenience, the effectual of oil-water separation.
Drawings
Fig. 1 is a schematic view of the overall structure of the oil removing tank of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
To the problem that prior art exists, the embodiment of the utility model provides a deoiling jar for oil field produced water treatment.
Examples
An oil removing tank for treating oilfield produced water comprises a tank body 1; a central cylinder 2 in the vertical direction is arranged in the tank body 1 and is connected with the bottom of the tank body 1; a partition plate 3 is arranged inside the central cylinder 2; the central cylinder 2 is divided into a water inlet cylinder 4 at the upper end and a water outlet cylinder 5 at the lower end by the partition plate 3; one side of the water inlet cylinder 4 close to the partition plate 3 is connected with a water inlet pipe 6; one end of the water inlet pipe 6 far away from the water inlet barrel 4 extends out of the tank body 1; one side of the water inlet cylinder 4, which is far away from the partition plate 3, is connected with a plurality of water inlet distribution branch pipes 7; a plurality of upward first bell mouths 8 are arranged on the water inlet distribution branch pipe 7;
one side of the water outlet barrel 5 close to the partition plate 3 is connected with a plurality of water outlet distribution branch pipes 9; a plurality of second bell mouths 10 with downward directions are arranged on the water outlet distribution branch pipe 9; one side of the water outlet barrel 5, which is far away from the partition plate 3, is connected with a water outlet pipe 11, and one end of the water outlet pipe 11, which is far away from the water outlet barrel 5, extends out of the upper side of the tank body 1 and then is connected with a buffer tank 12; a water inlet 13 is arranged at the upper side of the buffer tank 12; a water outlet 14 is arranged at the lower side of the buffer tank 12; the water inlet 13 is connected with the water outlet pipe 11; the water outlet 14 is connected with a water pump (not shown in the figure).
A first manhole 15 is also arranged at one side of the water inlet cylinder 4 close to the clapboard 3; a second manhole 16 is arranged on one side of the water outlet barrel 5 close to the bottom of the tank body 1.
The upper end of the water inlet distribution branch pipe 7 is provided with an oil receiving groove 17 connected with the water inlet cylinder 4; an overflow weir 18 is arranged between the oil receiving tank 17 and the tank body 1; the bottom of the oil collecting tank 17 is connected with an oil outlet pipe 19, and one end of the oil outlet pipe 19 far away from the oil collecting tank 17 extends out of the tank body 1.
The upper surface of weir 18 is of a saw-tooth configuration.
The utility model discloses an deoiling jar during operation, oily sewage gets into a water section of thick bamboo 4 through inlet tube 6, through an inlet section of thick bamboo 4 to lower and go up and get into water distribution branch pipe 7, the first horn mouth 8 of rethread is ascending flow evenly distributed to jar body 1 in. The waste oil and suspended matters after oil-water separation are collected by the overflow weir 18 and the oil collecting tank 17 and then discharged by the oil outlet pipe 19, and the sewage after oil removal in the tank body 1 flows into the buffer tank 12 from bottom to top through the second bell mouth 10, the water outlet distribution branch pipe 9 and the water outlet pipe 11; the water outlet 14 of the buffer tank 12 is provided with a water pump for providing suction.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the appended claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (7)
1. A deoiling tank for treating oilfield produced water is characterized in that the deoiling tank comprises a tank body; a central cylinder in the vertical direction is arranged in the tank body and connected with the bottom of the tank body; a partition plate is arranged inside the central cylinder; the central cylinder is divided into a water inlet cylinder at the upper end and a water outlet cylinder at the lower end by the partition plate; one side of the water inlet cylinder, which is close to the partition plate, is connected with a water inlet pipe; one end of the water inlet pipe, which is far away from the water inlet barrel, extends out of the tank body; one side of the water inlet cylinder, which is far away from the partition plate, is connected with a plurality of water inlet distribution branch pipes; one side of the water outlet barrel, which is close to the partition plate, is connected with a plurality of water outlet distribution branch pipes; one side of the water outlet barrel, which is far away from the partition plate, is connected with a water outlet pipe; one end of the water outlet pipe, which is far away from the water outlet barrel, extends out of the tank body.
2. The oil removal tank for the treatment of the oilfield produced water according to claim 1, wherein the water inlet distribution branch pipe is provided with a plurality of first bellmouths which are upward.
3. The oil removal tank for the treatment of the produced water in the oil field according to claim 2, wherein the outlet water distribution branch pipe is provided with a plurality of second bellmouths which are downward.
4. The oil removal tank for the treatment of the oilfield produced water according to claim 3, wherein one end of the water outlet pipe, which is far away from the water outlet barrel, extends out of the upper side of the tank body and then is connected with the buffer tank; a water inlet is arranged at the upper side of the buffer tank; a water outlet is arranged at the lower side of the buffer tank; the water inlet is connected with the water outlet pipe; the water outlet is connected with a water pump.
5. The oil removal tank for the treatment of the oilfield produced water according to claim 4, wherein a first manhole is further arranged on one side of the water inlet cylinder, which is close to the partition plate; one side of the water outlet barrel, which is close to the bottom of the tank body, is provided with a second manhole.
6. The oil removal tank for the treatment of the oilfield produced water according to claim 5, wherein the upper end of the water inlet distribution branch pipe is provided with an oil receiving tank connected with the water inlet cylinder; an overflow weir is arranged between the oil receiving groove and the tank body; the bottom of the oil collecting groove is connected with an oil outlet pipe, and one end of the oil outlet pipe, which is far away from the oil collecting groove, extends out of the tank body.
7. The oil removal tank for oilfield produced water treatment of claim 6, wherein the upper surface of the overflow weir is of a saw-tooth structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121758671.6U CN214936234U (en) | 2021-07-30 | 2021-07-30 | Oil removing tank for oil field produced water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121758671.6U CN214936234U (en) | 2021-07-30 | 2021-07-30 | Oil removing tank for oil field produced water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214936234U true CN214936234U (en) | 2021-11-30 |
Family
ID=79070277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121758671.6U Active CN214936234U (en) | 2021-07-30 | 2021-07-30 | Oil removing tank for oil field produced water treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214936234U (en) |
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2021
- 2021-07-30 CN CN202121758671.6U patent/CN214936234U/en active Active
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