CN219341842U - Oil skimming well - Google Patents

Abstract

An oil skimming well comprises a well body, an overflow part and an oil suction part; the water inlet end of the overflow part is arranged in the well body, the overflow part extends to the outside of the well body from a position higher than the water inlet end, and the oil suction part is a pipeline communicated with the outside of the well body. And the sewage at the bottom of the well body is sucked out through siphon benefit, so that oil-water separation is realized.

Description

Oil skimming well

Technical Field

The utility model belongs to the field of sewage treatment, and particularly relates to an oil-water separation technology.

Background

The skimming well is a water treatment structure for separating oil from water, collecting oil, dewatering and removing mud by utilizing water level difference generated by oil-water specific gravity difference. Skimming wells are also known as oil separation sumps and oil removal sumps.

Chinese patent document CN201596381U discloses an oil removal device, which utilizes multiple overflows of multiple oil removal units in an oil removal tank to realize oil-water separation. The advantage is that can realize better oil-water separation through overflow many times, and the shortcoming is that area is great.

Chinese patent document CN108726794A discloses a device for pretreatment and oil removal of wastewater in coal chemical industry, which utilizes porous spherical suspended filler to be matched with filter materials in an absorption tube and a biological rotating disc for microbial absorption, so that floating oil, dispersed oil and emulsified oil in oily wastewater can be well absorbed and filtered. It can be seen that the oil skimming facilities in the prior art have the problems of huge facility volume and auxiliary oil removal process.

Disclosure of Invention

The utility model aims to provide an oil skimming well so as to solve the technical problems that sewage stays in the oil skimming well for a long time and stinks and precipitates are generated.

In order to achieve the above purpose, the specific technical scheme of the oil skimming structure of the utility model is as follows:

an oil skimming well is characterized by comprising a well body, an overflow part and an oil suction part; the water inlet end of the overflow part is arranged in the well body, the overflow part extends to the outside of the well body from a position higher than the water inlet end, and the oil suction part is a pipeline communicated with the outside of the well body.

Further, the overflow part is an elbow pipe penetrating through the side wall of the well body.

Further, the overflow part comprises a first overflow pipe and a second overflow pipe, wherein the first overflow pipe is arranged in the well body, and the second overflow pipe penetrates through the well body to be connected with the first overflow pipe.

Further, the oil suction part is an oil suction pipe, and the opening of the oil suction pipe is not lower than the highest position of a pipeline formed by the first overflow pipe and the second overflow pipe.

Further, the second overflow pipe is connected with the middle part of the first overflow pipe, and the pipe orifice of the first overflow pipe is higher than that of the second overflow pipe.

Further, the pipe diameter of the first overflow pipe is larger than that of the second overflow pipe, and the first overflow pipe is connected with the second overflow pipe through a reducing tee.

Further, the bottom of the well body is provided with an emptying device, and the emptying device comprises a concrete slope arranged on one side of the bottom of the well body and a drain pipe arranged at the bottom of the concrete slope.

Further, the bottom of the well body is provided with a water-absorbing horn mouth support, and the first overflow pipe is arranged on the water-absorbing horn mouth support.

Further, a quick connector is arranged on the oil suction pipe.

The utility model has the beneficial effects that:

through the overflow pipe formed by the first overflow pipe and the second overflow pipe, the sewage at the bottom of the well body is sucked out through siphon benefit, so that oil-water separation is realized.

Through the first overflow pipe of big pipe diameter, can realize static pressure recoil in the first overflow pipe of big pipe diameter at the in-process that the water level reduces, dash out the silt of first overflow pipe bottom, avoid first overflow pipe to block up.

Drawings

FIG. 1 is a schematic side view of the present utility model;

FIG. 2 is a schematic diagram of the front structure of the present utility model;

FIG. 3 is a schematic side view of the structure of embodiment 2;

FIG. 4 is a schematic side view of the structure of embodiment 5;

fig. 5 is a schematic side view of embodiment 6.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, an oil skimming well according to the present utility model is described in further detail below with reference to the accompanying drawings.

Examples

As shown in fig. 1 and fig. 2, in the technical scheme of the utility model, an oil skimming well comprises a well body 1, an overflow part and an oil suction part. The water inlet end of the overflow part is arranged inside the well body 1, the overflow part extends to the outside of the well body 1 from a position higher than the water inlet end, and the oil suction part is a pipeline communicated with the outside of the well body 1.

In this embodiment, both the overflow portion and the oil suction portion are opened at both ends, and the structure with the middle closed is connected with the inside and the outside of the well body 1. One end of the overflow part is positioned at the bottom of the well body 1, and the middle part extends upwards and then penetrates out of the well body 1.

The liquid inlet of the oil suction part is positioned in the middle of the well body 1. After the liquid level in the well body 1 is higher than the overflow level of the overflow part, the water inlet end of the overflow part starts to drain water outwards from the bottom of the well body 1 by utilizing the siphon effect, and the water at the lower part of the liquid is pumped out due to the layering of the oil, so that the oil-liquid separation is realized.

The siphon effect of the overflow part is interrupted after the water level in the well body 1 is reduced, and the siphon effect is started again after the sewage level in the well body 1 is restored, so that the water is drained again. After the process is circulated for a certain number of times, the proportion of oil in the sewage in the well body 1 is greatly increased, at the moment, the valve of the oil suction part is opened again, and the oil is discharged until the end head of the oil suction part leaks out and the oil discharge process is stopped. And closing the valve of the oil suction part, and repeating the flow.

Examples

In this embodiment, as shown in fig. 3, the oil suction portion is an oil suction pipe 3, and the oil suction pipe 3 is located at the highest position of the pipeline formed by the first overflow pipe 2 and the second overflow pipe 4, where the opening of the well body 1 is not lower than. The overflow part is an elbow pipe penetrating through the side wall of the well body 1.

As in example 1, after the liquid level in the well 1 is higher than the overflow level of the overflow portion, the water inlet end of the overflow portion starts to drain outwards from the bottom of the well 1 by siphon effect, and the water in the lower portion of the liquid is pumped out due to the oil stratification.

Unlike embodiment 1, in this embodiment, the overflow portion discharges water and the surface of the sewage of the well body 1 is also close to the oil suction pipe 3, so that the sewage discharge and the oil discharge can be performed simultaneously.

Examples

The overflow part comprises a first overflow pipe 2 and a second overflow pipe 4, the first overflow pipe 2 is arranged in the well body 1, and the second overflow pipe 4 penetrates through the well body 1 to be connected with the first overflow pipe 2.

In this embodiment, the overflow portion is formed by two parts, and a part of the second overflow pipe 4 is located outside the well body 1, so that the second overflow pipe 4 can be independently adjusted according to practical situations, and the water outlet of the second overflow pipe 4 is controlled. The secondary bending can be performed, and the overflow water level height is further controlled.

Examples

The second overflow pipe 4 is connected with the middle part of the first overflow pipe 2, and the higher pipe orifice of the first overflow pipe 2 is higher than the first overflow pipe. The pipe diameter of the first overflow pipe 2 is larger than that of the second overflow pipe 4, and the first overflow pipe 2 and the second overflow pipe 4 are connected through a reducing tee. In practical application, the pipe diameter of the first overflow pipe 2 is not smaller than DN150, preferably DN200; the rest of the pipes have a pipe diameter smaller than DN100, preferably DN80. The oil suction pipe 3 is provided with a quick connector 31. Valves are arranged on the oil suction pipe 3 and the water discharge pipe 5.

In this embodiment, the upper end of the first overflow pipe 2 is higher than the highest point of the loop formed by the second overflow pipe 4 and the first overflow pipe 2. The raised part can provide the interface of the liquid backflushing pipeline on one hand and provides larger static pressure for the bottom of the pipe when the liquid level is higher on the other hand. The bottom of the pipeline is prevented from being blocked by the sludge.

When the oil-containing waste water treatment device is used, when the flow rate of the oil-containing waste water is smaller, the valve is opened, equipment is externally connected through the quick connector 31 on the oil suction pipe 3, and oil on the oil liquid level is discharged through the oil suction pipe 3. When the oil-containing waste water is large, the valve of the oil suction pipe 3 is closed, and when the water level is higher than the highest position of the communication pipeline of the first overflow pipe 2 and the second overflow pipe 4, the second overflow pipe 4 discharges water below the oil liquid through siphoning.

Examples

The bottom of the well body 1 is provided with an emptying device, and the emptying device comprises a concrete slope 12 arranged on one side of the bottom of the well body 1 and a drain pipe 5 arranged at the bottom of the concrete slope 12.

The bottom of the well body 1 is provided with a water absorption horn mouth bracket 11, and the first overflow pipe 2 is arranged on the water absorption horn mouth bracket 11. Further avoiding the blockage of the bottom of the pipeline by the sludge.

Examples

In this embodiment, as shown in fig. 4, the drain pipe 5 discharges oil from the top to the well body 1 at Fang Yanshen.

Examples

In the present embodiment, as shown in fig. 5, the drain pipe 5 is horizontally disposed.

Claims (9)

1. An oil skimming well is characterized by comprising a well body (1), an overflow part and an oil suction part; the water inlet end of the overflow part is arranged inside the well body (1), the overflow part extends to the outside of the well body (1) from a position higher than the water inlet end, and the oil suction part is a pipeline communicated with the outside of the well body (1).

2. Skimming well according to claim 1, characterized in that the overflow is an elbow passing through the side wall of the well body (1).

3. Skimming well according to claim 2, characterized in that the overflow comprises a first overflow pipe (2) and a second overflow pipe (4), the first overflow pipe (2) being arranged in the well body (1), the second overflow pipe (4) being connected to the first overflow pipe (2) through the well body (1).

4. A skimming well according to claim 3, characterized in that the oil suction part is an oil suction pipe (3), and the oil suction pipe (3) is positioned at the highest position of a pipeline formed by the first overflow pipe (2) and the second overflow pipe (4) when the opening of the well body (1) is not lower than the highest position.

5. Skimming well according to claim 4, characterized in that the second overflow pipe (4) is connected to the middle part of the first overflow pipe (2), the higher pipe mouth of the first overflow pipe (2) being higher than the second overflow pipe (4).

6. Skimming well according to claim 5, characterized in that the pipe diameter of the first overflow pipe (2) is larger than the pipe diameter of the second overflow pipe (4), the first overflow pipe (2) and the second overflow pipe (4) being connected by means of a reducing tee.

7. Skimming well according to claim 6, characterized in that the bottom of the well body (1) is provided with an evacuation device comprising a concrete slope (12) arranged on one side of the bottom of the well body (1), and a drain pipe (5) arranged at the bottom of the concrete slope (12).

8. Skimming well according to claim 7, characterized in that the bottom of the well body (1) is provided with a water suction bell mouth holder (11), and that the first overflow pipe (2) is arranged on the water suction bell mouth holder (11).

9. Skimming well according to claim 8, characterized in that the suction pipe (3) is provided with a quick coupling (31).

Images