阅读说明：本技术 成品油库污水预处理装置及其用途 (Finished oil depot sewage pretreatment device and application thereof ) 是由 姚猛 牟桂芹 郭亚逢 于 2019-03-15 设计创作，主要内容包括：本发明涉及一种成品油库污水预处理装置及其用途,主要解决现有技术中油水分离不彻底、浮油回收率不高的问题。本发明通过采用一种成品油库污水预处理装置,成品油库含油污水经高位水箱进入油水分离罐后,浮油进入集油区,通过排油管排出,水从油水分离罐底部排出,实现油水分离和成品油回收的技术方案较好地解决了上述问题,可用于成品油库污水预处理中。(The invention relates to a sewage pretreatment device for a finished oil depot and application thereof, and mainly solves the problems of incomplete oil-water separation and low floating oil recovery rate in the prior art. According to the invention, by adopting the pretreatment device for the sewage of the finished oil depot, after the oily sewage of the finished oil depot enters the oil-water separation tank through the high-level water tank, the floating oil enters the oil collection area and is discharged through the oil discharge pipe, and the water is discharged from the bottom of the oil-water separation tank, so that the technical scheme for realizing oil-water separation and finished oil recovery better solves the problems and can be used for the pretreatment of the sewage of the finished oil depot.)

1. The utility model provides a finished product oil depot sewage pretreatment device, including water pipe way (1), high-order water tank (3), oil water separating tank (6), high-order water tank (3), oil collecting region (7), oil trap (13), oil extraction pipe (11), drain pipe (14), high-order water tank (3) link to each other through pipeline (4) with oil water separating tank (6), oil water separating tank (6) upper portion is provided with oil collecting region (7), automatic exhaust valve (8) are installed at oil collecting region (7) top, oil extraction pipe (11) are installed to oil collecting region (7) top partially, oil extraction pipe (11) exit end communicates with each other with oil trap (13), oil water separating tank (6) inside sets gradually first baffle (9) and second baffle (10) by the water direction of intaking everywhere, oil water separating tank (6) bottom sets up drain pipe (14).

2. The product oil depot wastewater pretreatment device of claim 1, wherein a third valve (12) is installed on the oil discharge pipe.

3. The pretreatment device for the sewage in the finished oil depot according to claim 1, wherein the bottom elevation of the high-level water tank (3) is higher than the top elevation of the oil collecting area (7).

4. The pretreatment device for the sewage in the finished oil depot according to claim 1, wherein the automatic exhaust valve (8) is arranged at the topmost end of the oil collecting area (7).

5. The product oil depot sewage pretreatment device according to claim 1, wherein the pipeline (4) is connected with the upper part of the oil-water separation tank (6).

6. The product oil depot wastewater pretreatment device of claim 1, wherein the first baffle (9) penetrates through the oil-water separation tank (6) in the horizontal direction, the bottom of the baffle (9) is connected with the bottom of the oil-water separation tank (6), the upper end of the baffle is separated from the upper part of the oil-water separation tank (6) by a distance 1/10-1/8 of the height of the oil-water separation tank (6), and the upper end of the baffle is positioned above the oil-water separation tank (6).

7. The product oil depot wastewater pretreatment device according to claim 1, wherein the second baffle (10) penetrates through the oil-water separation tank (6) in both horizontal and vertical directions.

8. The product oil depot wastewater pretreatment device of claim 1, wherein the second baffle (10) is provided with a draft tube (16), the draft tube (16) is arranged on the water supply side of the second baffle (10), the lower end of the draft tube (16) is close to the bottom of the oil-water separation tank (6), and the upper end of the draft tube passes through the upper part of the second baffle (10).

9. The pretreatment device for the sewage of the product oil depot according to claim 1, wherein the top of the oil collecting tank (13) has a lower elevation than the junction of the oil discharge pipe (11) and the oil collecting area (7).

10. Use of the device according to claims 1-9 for the pretreatment of sewage from a finished oil depot.

Technical Field

The invention relates to a sewage pretreatment device for a finished oil depot and application thereof.

Background

The top water operation of the finished oil depot can generate a large amount of oily sewage. The sewage pretreatment facility that present finished product oil depot used is mostly traditional oil interceptor, though can play the oil removal effect, but oil-water separation is not thorough, and the oil slick rate of recovery is not high, has caused very big wasting of resources. Patent CN201621150810.6 discloses an oil separation pool for collecting floating oil by utilizing an oil collecting pipe arranged in the pool, the water surface area of the oil separation pool is large, the oil layer of the floating oil is thin, and the oil collecting efficiency is not high.

Disclosure of Invention

One of the technical problems to be solved by the invention is that in the prior art, the oil-water separation is not thorough, and the recovery rate of the floating oil is not high, and a novel finished oil depot sewage pretreatment device is provided, which has the advantages of thorough oil-water separation and high recovery rate of the floating oil. The second technical problem to be solved by the present invention is to provide a use of a device for pre-treating the waste water in the oil depot, which corresponds to the first technical problem to be solved.

In order to solve one of the problems, the technical scheme adopted by the invention is as follows: the utility model provides a finished product oil depot sewage pretreatment device, including the pipeline 1 that comes, high-order water tank 3, oil water separator 6, high-order water tank 3, oil collecting zone 7, oil trap 13, arrange oil pipe 11, drain pipe 14, high-order water tank 3 passes through pipeline 4 with oil water separator 6 and links to each other, 6 upper portions of oil water separator are provided with oil collecting zone 7, automatic exhaust valve 8 is installed at oil collecting zone 7 top, oil pipe 11 is installed to oil collecting zone 7 top partially, arrange oil pipe 11 exit end and oil trap 13 and communicate with each other, 6 insidely of oil water separator sets gradually first baffle 9 and second baffle 10 by intaking water orientation everywhere, 6 bottoms of oil water separator set up drain pipe 14.

In the above technical solution, preferably, the third valve 12 is installed on the oil drain pipe.

In the above technical solution, preferably, the bottom elevation of the high-level water tank 3 needs to be higher than the top elevation of the oil collecting area 7.

In the above technical solution, preferably, the automatic exhaust valve 8 is installed at the topmost end of the oil collecting area 7.

In the above technical solution, preferably, the pipe 4 is connected to the upper part of the oil-water separation tank 6.

Among the above-mentioned technical scheme, preferably, first baffle 9 runs through inside oil water separating tank 6 at the horizontal direction, and the baffle 9 bottom is connected with oil water separating tank 6 bottom, and the upper end is 1/10 ~ 1/8 for oil water separating tank (6) height with oil water separating tank 6 upper portion disconnection distance, and the upper end is located oil water separating tank 6 top.

In the above technical solution, preferably, the second baffle 10 penetrates through the oil-water separation tank 6 in both the horizontal direction and the vertical direction.

In the above technical solution, preferably, the draft tube 16 is arranged on the second baffle 10, the draft tube 16 is arranged on the water inlet side of the second baffle 10, the lower end of the draft tube 16 is close to the bottom of the oil-water separation tank 6, and the upper end of the draft tube passes through the upper part of the second baffle 10.

In the above technical solution, preferably, the top of the oil collecting tank 13 should be lower than the height of the joint of the oil discharge pipe 11 and the oil collecting area 7.

In order to solve the second problem, the invention adopts the following technical scheme: the device is applied to the sewage pretreatment of the finished oil depot.

According to the invention, after oily sewage of the finished oil depot enters the oil-water separation tank through the high-level water tank, floating oil enters the oil collection area and is discharged through the oil discharge pipe, and water is discharged from the bottom of the oil-water separation tank, so that oil-water separation and finished oil recovery are realized.

The invention changes the flow path of the oily sewage by using the two clapboards arranged in the oil-water separation tank, uses the density difference of oil and water to ensure that the oil with low density flows upwards and is collected in the oil collection area, and is discharged into the oil collection tank from the oil collection area through the oil discharge pipe, and the water flows downwards and is discharged from the water discharge pipe.

Drawings

FIG. 1 is a schematic flow diagram of the apparatus of the present invention.

In fig. 1, a water inlet pipeline 1, a second valve 2, a high-level water tank 3, a pipeline 4, a first valve 5, an oil-water separation tank 6, an oil collecting area 7, an automatic exhaust valve 8, a first baffle 9, a second baffle 10, an oil discharge pipe 11, a third valve 12, an oil collecting tank 13, a water discharge pipe 14, a fourth valve 15 and a flow guide pipe 16.

The present invention will be further illustrated by the following examples, but is not limited to these examples.

Detailed Description

[ example 1 ]

Before the device runs, the inside of the oil-water separation tank 6 is empty, and all valves are closed. When sewage enters the water inlet pipeline 1 through a water pump or a high-altitude self-flow, the second valve 2 is opened, oily sewage enters the high-level water tank 3, when the water level of the high-level water tank rises to a certain water level, the first valve 5 is opened, the sewage enters the oil-water separation tank 6 through the pipeline 4, and meanwhile, the automatic exhaust valve 8 starts to exhaust; along with sewage constantly flows into oil water separating tank 6, the surface of water constantly risees until sewage gets into the region between first baffle 9 and the second baffle 10 through first baffle 9, along with the surface of water constantly risees between first baffle 9 and the second baffle 10, sewage flows to the opposite side of second baffle 10 through honeycomb duct 16, at this moment continues to intake, aquatic oil will float gradually to the surface of water, upper portion between end and the second baffle 10 of intaking inside oil water separating tank 6 constantly gathers, finally get into collection oil district 7, and water through oil water separation flows into the opposite side of second baffle 10 through 16 entry honeycomb ducts near second baffle 10 bottom, until inside and the collection oil district 7 of whole oil water separating tank 6 is full of water, automatic exhaust valve 8 stops the exhaust. And closing the second valve 2 to stop water inflow, standing for a period of time, opening the third valve 12 on the oil discharge pipe 11 after oil products in water float and gather in the oil collecting area 7, enabling the collected floating oil to flow into the oil collecting tank 13 under the water pressure of the high-level water tank 3, closing the third valve 12 to finish oil collection after the oil products are discharged completely, wherein the water content of the floating oil is 5%, and the recovery rate of the floating oil can reach 80%.

[ example 2 ]

After the device finishes primary oil collection, the inside of the oil-water separation tank 6 is in a full water state, the second valve 2 and the fourth valve 15 on the drain pipe 14 are opened, oily sewage enters the high-level water tank 3, and the sewage enters the oil-water separation tank 6 through the pipeline 4; after continuously flowing into the oil-water separation tank 6, sewage crosses the first baffle 9 and enters a region between the first baffle 9 and the second baffle 10, at the moment, oil in water floats on the water surface and is intercepted at the upper part between the water inlet end inside the oil-water separation tank 6 and the second baffle 10, water with the density larger than that of oil flows to the other side of the second baffle 10 through the guide pipe 16, at the moment, water continuously enters, the oil in water is continuously gathered at the upper part between the water inlet end inside the oil-water separation tank 6 and the second baffle 10 and finally enters the oil collection area 7, and the water after oil-water separation flows to the other side of the second baffle 10 through the inlet of the guide pipe 16 close to the bottom of the second baffle 10 and is discharged through the water discharge pipe 14 and enters a sewage treatment system for further; along with the increase of oil accumulation in the oil collecting area 7, the third valve 12 on the oil discharge pipe 11 is opened, the collected floating oil flows into the oil collecting tank 13 under the water pressure of the high-level water tank 3, after the oil is discharged completely, the third valve 12 is closed to finish oil collection, the water content of the floating oil is 5%, and the recovery rate of the floating oil can reach 80%.

[ COMPARATIVE EXAMPLE ]

The water content of the floating oil collected by the traditional oil separation tank which is not provided with an oil collecting area and is open and collects the floating oil by using an oil collecting pipe is up to 15-30%, and the recovery rate of the floating oil is 60-75%.