CN221854310U - Graded sponge oil removal and filtration integrated device - Google Patents

Abstract

The utility model provides a grading sponge oil removal and filtration integrated device which comprises a tank body, a net-shaped top plate, a net-shaped supporting plate and a floating oil collector, wherein the net-shaped top plate is arranged above the inside of the tank body; the net-shaped supporting plate is arranged below the inner part of the tank body and is parallel to the net-shaped top plate; the net-shaped top plate and the net-shaped supporting plate divide the tank body into a first area positioned above, a second area positioned in the middle and a third area positioned below; the floating oil collector is arranged in the first area; the method comprises the steps that impurity-containing oily sewage enters a first area, large-particle-size suspended matters are removed through a net-shaped top plate, floating oil and small-particle-size suspended matters in the sewage are isolated through a first filter screen, the isolated floating oil is discharged after being captured and collected through a floating oil collector, fine impurities are filtered through the first filter screen and a second filter screen, and the problems that in the prior art, water quality of water is affected, and later-stage development in an oil field is seriously affected when the oil well is refilled due to the fact that a large amount of impurities and greasy dirt are extracted from the oil well are directly refilled into the oil well are solved.

Description

Graded sponge oil removal and filtration integrated device

Technical Field

The utility model relates to the technical field of petroleum wastewater, in particular to a graded sponge oil removal and filtering integrated device.

Background Art

At present, many domestic oil fields have entered the high water content exploitation stage, and the average comprehensive water content of produced fluid has reached 80%, and some oil fields are even as high as 90%. When water injection is carried out on these oil wells, from the perspective of water saving and environmental protection, the treated sewage in the produced fluid is usually injected back into the oil well. The oil-water mixture extracted from the well contains a large amount of impurities and oil pollution. The water containing a large amount of impurities and oil pollution will have a certain impact on the subsequent treatment, thereby affecting the quality of water injection, causing the rock formation to be blocked, and the purpose of water injection to drive oil cannot be achieved, which seriously affects the mid- and late-stage development of the oil field.

Utility Model Content

The main purpose of the utility model is to provide a graded sponge oil removal and filtration integrated device to at least solve the problem in the prior art that a large amount of impurities and oily water produced from oil wells is directly injected back into the oil wells, affecting the water quality and seriously affecting the mid- and late-stage development of the oil field when injected back into the underground formation.

In order to achieve the above-mentioned purpose, the utility model provides a graded sponge oil removal filter integrated device, including a tank body, a mesh top plate, a mesh support plate, a first filter screen, a second filter screen, and an oil floating collector, wherein the mesh top plate is arranged above the inside of the tank body; the mesh support plate is arranged below the inside of the tank body and is parallel to the mesh top plate; the mesh top plate and the mesh support plate separate the tank body into a first area located at the top, a second area located in the middle, and a third area located at the bottom; the first filter screen is arranged in the second area, the first filter screen is located at the bottom end of the mesh top plate and is separated from the mesh top plate; the second filter screen is arranged in the second area, the second filter screen is arranged in the second area, and the second filter screen is arranged in the second area. The net is located at the front end of the mesh support plate and contacts the first filter screen; the floating oil collector is arranged in the first area (40); wherein, the impure oil-containing sewage enters the first area, the large-size suspended solids are removed through the mesh top plate, and then the floating oil and small-size suspended solids in the sewage are isolated through the first filter screen, the isolated floating oil is captured and collected by the floating oil collector and then discharged, and then the fine impurities are filtered through the first filter screen and the second filter screen in the first area, and then the fine impurities and the filtered and oil-removed water are discharged through the third area, so as to avoid the blockage of the rock formation when the impure oil-containing sewage is injected back into the underground formation, and the purpose of water injection and oil displacement cannot be achieved, thus affecting the mid- and late-stage development of the oil field.

Furthermore, the floating oil collector is arranged at the center of the tank body.

Furthermore, the first filter screen is a fine-pored polyurethane filter sponge.

Furthermore, the second filter screen is a coarse-pore polyurethane filter sponge.

Furthermore, the first area includes: a water inlet pipe, a water inlet valve, a backwash water outlet pipe, a backwash water outlet valve, an oil outlet pipe, and an oil outlet valve. The water inlet pipe is arranged on the outer wall of the tank body and communicated with the tank body; the water inlet valve is arranged at the rear end of the water inlet pipe; the backwash water outlet pipe is arranged at the center of the top of the tank body and communicated with the tank body; the backwash water outlet valve is arranged at the rear end of the backwash water outlet pipe; the oil outlet pipe is arranged on the outer wall of the tank body and connected to the floating oil collector; the oil outlet valve is arranged at the rear end of the oil outlet pipe; wherein, when water is flowing into the water inlet pipe, the backwash water outlet valve is in a closed state, the oil outlet valve is in an open and closed state, and the floating oil collector captures the floating oil and discharges it through the oil outlet pipe.

Furthermore, the second area includes: a maintenance hole, which is arranged on the outer wall of the tank body and communicates with the tank body, and the maintenance hole is used to replace and maintain the first filter screen and the second filter screen.

Furthermore, the third area includes: a first three-way pipe, a second three-way pipe, an air inlet pipe, an air inlet valve, a drain pipe, a drain valve, a backwash water inlet pipe, a backwash water inlet valve, a water outlet pipe, and a water outlet valve. The first three-way pipe is arranged at the center of the bottom end of the tank body and is connected to the tank body; the second three-way pipe is arranged at the bottom end of the tank body and is parallel to the first three-way pipe and is connected to the tank body; the air inlet pipe is connected to the tank body through the first three-way pipe, and the air inlet pipe is arranged at one end of the first three-way pipe; the air inlet valve is arranged at the rear end of the air inlet pipe; the drain pipe is connected to the tank body through the first three-way pipe, and the drain pipe is arranged at the other end of the first three-way pipe; the drain valve is arranged at the rear end of the drain pipe; the backwash water inlet pipe is connected to the tank body through the second three-way pipe It is connected to the tank body, and the backwash water inlet pipe is arranged at one end of the second three-way pipe; the backwash water inlet valve is arranged at the rear end of the backwash water inlet pipe; the outlet pipe is connected to the tank body through the second three-way pipe, and the outlet pipe is arranged at the other end of the second three-way pipe; the outlet valve is arranged at the rear end of the outlet pipe; wherein, fine impurities and dirty liquid are discharged through the drain pipe and the drain valve, and the water after filtering and oil removal is discharged through the outlet pipe and the outlet valve. When the first filter screen and the second filter screen are blocked, compressed air can be introduced through the air inlet valve and the air inlet pipe to backwash the first filter screen and the second filter screen; or clean water can be used to backwash through the backwash water inlet valve and the backwash water inlet pipe to perform normal filtering and oil removal operations.

The utility model discloses a graded sponge oil removal filter integrated device, comprising a tank body, a mesh top plate, a mesh support plate, a first filter screen, a second filter screen, and a floating oil collector. The mesh top plate is arranged above the inside of the tank body; the mesh support plate is arranged below the inside of the tank body and is parallel to the mesh top plate; the mesh top plate and the mesh support plate separate the tank body into a first area located at the top, a second area located in the middle, and a third area located at the bottom; the first filter screen is arranged in the second area, the first filter screen is located at the bottom end of the mesh top plate and is separated from the mesh top plate; the second filter screen is arranged in the second area The second filter is located at the front end of the mesh support plate and contacts with the first filter; the floating oil collector is arranged in the first area; wherein, the impure and oily sewage enters the first area, the large-particle suspended solids are removed through the mesh top plate, and then the floating oil and small-particle suspended solids in the sewage are isolated through the first filter, the isolated floating oil is captured and collected by the floating oil collector and then discharged, and then the fine impurities are filtered through the first filter and the second filter, which solves the problem that in the prior art, a large amount of impurities and oily water produced from oil wells is directly injected into the oil wells, affecting the water quality of the effluent, and seriously affecting the mid- and late-stage development of the oil field when it is injected into the underground formation.

The beneficial effects of the utility model are:

1. Polyurethane filter sponge is a new type of biological filler synthesized from polymer materials. The combination of fine-pore polyurethane filter sponge and coarse-pore polyurethane filter sponge can effectively remove oil and suspended matter from the oil-water mixture by direct absorption or gravity-driven filtration. Polyurethane filter sponge is not only hydrophilic and oleophobic, with a large compression coefficient, but also has the ability to filter suspended matter. It can also be repeatedly rinsed and recycled, which is energy-saving and environmentally friendly.

2. When the fine-pore polyurethane filter sponge and the coarse-pore polyurethane filter sponge are blocked, compressed air is introduced through the air inlet pipe to backwash the coarse-pore polyurethane filter sponge and the fine-pore polyurethane filter sponge, and the impurities are discharged through the drain pipe; or clean water is used to backwash through the backwash inlet pipe, and the backwash water is discharged through the backwash outlet pipe.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

FIG1 is a schematic diagram of the overall structure of an optional integrated device for graded sponge oil removal and filtration according to an embodiment of the utility model;

The above drawings include the following reference numerals:

10. Tank body; 20. Mesh top plate; 30. Mesh support plate; 40. First area; 41. Water inlet pipe; 411. Water inlet valve; 42. Backwash outlet pipe; 421. Backwash outlet valve; 43. Oil outlet pipe; 431. Oil outlet valve; 50. Second area; 51. Maintenance hole; 60. Third area; 61. First three-way pipe; 62. Second three-way pipe; 63. Air inlet pipe; 631. Air inlet valve; 64. Drain pipe; 641. Drain valve; 65. Backwash inlet pipe; 651. Backwash inlet valve; 66. Water outlet pipe; 661. Water outlet valve; 70. First filter screen; 80. Second filter screen; 90. Floating oil collector.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

According to an embodiment of the utility model, a graded sponge oil removal and filtration integrated device, as shown in FIG1, includes: a tank body 10, a mesh top plate 20, a mesh support plate 30, a first filter screen 70, a second filter screen 80, and a floating oil collector 90, wherein the mesh top plate 20 is arranged above the inside of the tank body 10; the mesh support plate 30 is arranged below the inside of the tank body 10 and is parallel to the mesh top plate 20; the mesh top plate 20 and the mesh support plate 30 separate the tank body 10 into a first area 40 located above, a second area 50 located in the middle, and a third area 60 located below; the first filter screen 70 is arranged in the second area 50, the first filter screen 70 is located at the bottom end of the mesh top plate 20 and is separated from the mesh top plate 20; the second filter screen 80 is arranged in the second area 50, the second filter screen 80 is located at the front end of the mesh support plate 30 and is in contact with the first filter screen 70; the floating oil The collector 90 is arranged in the first area 40; wherein, the impure oily wastewater enters the first area 40, the large-particle suspended solids are removed through the mesh top plate 20, and then the floating oil and small-particle suspended solids in the wastewater are isolated through the first filter 70, the isolated floating oil is captured and collected by the floating oil collector 90 and then discharged, and then the fine impurities are filtered through the first filter 70 and the second filter 80 in the second area 50, and then the fine impurities and the filtered and oil-removed water are discharged through the third area 60, so as to avoid the blockage of the rock formation when the impure oily wastewater is reinjected into the underground formation, and the purpose of water injection and oil recovery cannot be achieved, which affects the mid- and late-stage development of the oil field. A plurality of filter layers are arranged in sequence in the tank body, and the filtering is performed layer by layer, which improves the filtering accuracy, is more environmentally friendly and more efficient, and the first filter layer is combined with the second filter layer, which can more effectively remove oil and suspended solids from the oil-water mixture by direct absorption or gravity-driven filtration.

Furthermore, as shown in FIG. 1 , the floating oil collector 90 is disposed at the center of the tank body 10 . The floating oil collector is disposed at the center, so that the floating oil can be absorbed more quickly and evenly.

Furthermore, as shown in FIG. 1 , the first filter screen 70 is a fine-pored polyurethane filter sponge, which is a new type of biological filler synthesized from polymer materials. It is not only hydrophilic and oleophobic, and has a large compression coefficient, but also has the ability to filter suspended matter and can be repeatedly rinsed and recycled.

Furthermore, as shown in FIG1 , the second filter 80 is a coarse-pore polyurethane filter sponge. The polyurethane filter sponge is a new type of biological filler synthesized from polymer materials. It is not only hydrophilic and oleophobic, and has a large compression coefficient, but also has the ability to filter suspended matter. It can also be repeatedly rinsed and recycled.

Further, as shown in FIG1 , the first area 40 includes: a water inlet pipe 41, a water inlet valve 411, a backwash water outlet pipe 42, a backwash water outlet valve 421, an oil outlet pipe 43, and an oil outlet valve 431. The water inlet pipe 41 is arranged on the outer wall of the tank body 10 and communicates with the tank body 10; the water inlet valve 411 is arranged at the rear end of the water inlet pipe 41; the backwash water outlet pipe 42 is arranged at the top center of the tank body 10 and communicates with the tank body 10; the backwash water outlet valve 421 is arranged at the rear end of the backwash water outlet pipe 42; the oil outlet pipe 43 is arranged on the outer wall of the tank body 10 and connected to the floating oil collector 90; the oil outlet valve 431 is arranged at the rear end of the oil outlet pipe 43; wherein, when water is introduced into the water inlet pipe 41, the backwash water outlet valve 421 is in a closed state, and the oil outlet valve 431 is in an open and closed state, and the floating oil collector 90 captures the floating oil and discharges it through the oil outlet pipe 43. Valves are arranged at the rear end of each pipeline to achieve the purpose of distribution and ensure the normal operation of the fluid in the pipeline.

Furthermore, as shown in FIG. 1 , the second area 50 includes: a maintenance hole 51, which is arranged on the outer wall of the tank body 10 and communicates with the tank body 10. The maintenance hole 51 is used to replace and maintain the first filter 70 and the second filter 80. Multiple cleaning and replacement of the filter can not only save energy and reduce pollution to the environment, but also improve the filtering efficiency of the filtering device, thereby greatly improving work efficiency.

Further, as shown in FIG1 , the third area 60 includes: a first three-way pipe 61, a second three-way pipe 62, an air inlet pipe 63, an air inlet valve 631, a drain pipe 64, a drain valve 641, a backwash water inlet pipe 65, a backwash water inlet valve 651, a water outlet pipe 66, and a water outlet valve 661. The first three-way pipe 61 is arranged at the center of the bottom end of the tank body 10 and communicates with the tank body 10; the second three-way pipe 62 is arranged at the bottom end of the tank body 10 and at the first three-way pipe 61. The two sides are parallel to each other and communicate with the tank body 10; the air inlet pipe 63 is connected to the tank body 10 through the first three-way pipe 61, and the air inlet pipe 63 is arranged at one end of the first three-way pipe 61; the air inlet valve 631 is arranged at the rear end of the air inlet pipe 63; the sewage pipe 64 is connected to the tank body 10 through the first three-way pipe, and the sewage pipe is arranged at the other end of the first three-way pipe 61; the sewage valve 641 is arranged at the rear end of the sewage pipe 64; the backwash water inlet pipe 65 is connected to the tank body 10 through the second three-way pipe 62 0 is connected, the backwash water inlet pipe 65 is arranged at one end of the second three-way pipe 62; the backwash water inlet valve 651 is arranged at the rear end of the backwash water inlet pipe 65; the outlet pipe 66 is connected to the tank body 10 through the second three-way pipe 62, and the outlet pipe 66 is arranged at the other end of the second three-way pipe 62; the outlet valve 661 is arranged at the rear end of the outlet pipe 66; wherein, fine impurities and dirty liquid are discharged through the drain pipe 64 and the drain valve 641, and the water after filtering and degreasing is discharged through the outlet pipe 66 and the outlet valve 661. When the first filter screen 70 and the second filter screen 80 are blocked, compressed air can be introduced through the air inlet valve 631 and the air inlet pipe 63 to backwash the first filter screen 70 and the second filter screen 80; or backwash with clean water through the backwash water inlet valve 651 and the backwash water inlet pipe 65, normal filtering and degreasing operations can be performed, and valves are arranged at the rear end of each pipeline to achieve the purpose of distribution and ensure the normal operation of the fluid in the pipeline.

The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. The utility model provides a grading sponge deoiling filters integrated device which characterized in that includes:

A tank (10);

a mesh top plate (20), the mesh top plate (20) being disposed inside and above the tank (10);

A mesh support plate (30), wherein the mesh support plate (30) is arranged below the inner part of the tank body (10) and is parallel to the mesh top plate (20); the net-shaped top plate (20) and the net-shaped supporting plate (30) divide the tank body (10) into a first area (40) positioned above, a second area (50) positioned in the middle and a third area (60) positioned below;

A first filter screen (70), wherein the first filter screen (70) is arranged in the second area (50), and the first filter screen (70) is positioned at the bottom end of the mesh top plate (20) and is separated from the mesh top plate (20);

A second filter screen (80), wherein the second filter screen (80) is arranged in the second area (50), and the second filter screen (80) is positioned at the front end of the mesh-shaped supporting plate (30) and is in contact with the first filter screen (70);

-a floating oil collector (90), the floating oil collector (90) being arranged within the first region (40);

The sewage containing impurities and oil enters the first area (40), large-particle-size suspended matters are removed through the net-shaped top plate (20), floating oil and small-particle-size suspended matters in the sewage are isolated through the first filter screen (70), the isolated floating oil is discharged after being captured and collected by the floating oil collector (90), fine impurities are filtered by the first filter screen (70) and the second filter screen (80) in the second area (50), and fine impurities and filtered and deoiled water are discharged through the third area (60).

2. The grading sponge oil removal and filtration integrated device according to claim 1, wherein the floating oil collector (90) is arranged at the center of the tank body (10).

3. The grading sponge degreasing and filtering integrated device according to claim 1, wherein the first filter screen (70) is a fine-pore polyurethane filter sponge.

4. The grading sponge degreasing and filtering integrated device according to claim 1, wherein the second filter screen (80) is a coarse-pore polyurethane filter sponge.

5. The grading sponge degreasing and filtering integrated device according to claim 1, wherein the first area (40) comprises:

The water inlet pipe (41) is arranged on the outer wall of the tank body (10) and is communicated with the tank body (10);

A water inlet valve (411), wherein the water inlet valve (411) is arranged at the rear end of the water inlet pipe (41);

The backwashing water outlet pipe (42) is arranged at the center of the top end of the tank body (10) and is communicated with the tank body (10);

A backwash water valve (421), wherein the backwash water outlet valve (421) is arranged at the rear end of the backwash water outlet pipe (42);

The oil outlet pipe (43) is arranged on the outer wall of the tank body (10) and is connected with the floating oil collector (90);

an oil outlet valve (431), wherein the oil outlet valve (431) is arranged at the rear end of the oil outlet pipe (43);

When the water inlet pipe (41) is used for water inlet, the backwashing water outlet valve (421) is in a closed state, the oil outlet valve (431) is in an open-close state, and the floating oil collector (90) captures floating oil and discharges the floating oil through the oil outlet pipe (43).

6. The grading sponge degreasing and filtering integrated device according to claim 1, wherein the second area (50) comprises:

The maintenance hole (51), the maintenance hole (51) set up in jar body (10) outer wall and with jar body (10) communicate with each other, maintenance hole (51) are used for changing maintenance first filter screen (70) with second filter screen (80).

7. The grading sponge degreasing and filtering integrated device according to claim 1, wherein the third zone (60) comprises:

The first three-way pipe (61) is arranged at the center of the bottom end of the tank body (10) and is communicated with the tank body (10);

The second three-way pipe (62) is arranged at the bottom end of the tank body (10), is parallel to the first three-way pipe (61) and is communicated with the tank body (10);

The air inlet pipe (63) is connected with the tank body (10) through the first three-way pipe (61), and the air inlet pipe (63) is arranged at one end of the first three-way pipe (61);

an intake valve (631), the intake valve (631) being provided at the rear end of the intake pipe (63);

The blow-down pipe (64) is connected with the tank body (10) through a first three-way pipe, and the blow-down pipe (64) is arranged at the other end of the first three-way pipe (61);

A drain valve (641), wherein the drain valve (641) is arranged at the rear end of the drain pipe (64);

The backwashing water inlet pipe (65), the backwashing water inlet pipe (65) is connected with the tank body (10) through the second three-way pipe (62), and the backwashing water inlet pipe (65) is arranged at one end of the second three-way pipe (62);

A backwash water inlet valve (651), wherein the backwash water inlet valve (651) is arranged at the rear end of the backwash water inlet pipe (65);

The water outlet pipe (66) is connected with the tank body (10) through the second three-way pipe (62), and the water outlet pipe (66) is arranged at the other end of the second three-way pipe (62);

A water outlet valve (661), wherein the water outlet valve (661) is arranged at the rear end of the water outlet pipe (66);

Wherein, fine impurity dirty liquid is discharged through a drain pipe (64) and a drain valve (641), water after oil removal by filtration is discharged through a water outlet pipe (66) and a water outlet valve (661), when the first filter screen (70) and the second filter screen (80) are blocked, compressed air can be introduced through the air inlet valve (631) and the air inlet pipe (63) to recoil the first filter screen (70) and the second filter screen (80); or back flushing is carried out by clear water through the back flushing water inlet valve (651) and the back flushing water inlet pipe (65).