CN211081819U

CN211081819U - Sand filtering device special for oil extraction and water injection

Info

Publication number: CN211081819U
Application number: CN201922196742.7U
Authority: CN
Inventors: 郝***
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-24
Anticipated expiration: 2029-12-10

Abstract

The utility model belongs to the technical field of oil recovery water injection filtration, especially, a special sand filter for oil recovery water injection, which comprises a tank body, the bottom is provided with an installation cylinder in the top of the tank body, the lower part of the installation cylinder is provided with a filter inner cover, the outer wall lower part of the filter inner cover is fixed with a first annular plate, the outer wall of the first annular plate is connected with the inner wall of the tank body, the left rear part of the filter inner cover is connected with a water inlet pipe, the other end of the water inlet pipe extends to the outside of the tank body, the left upper part of the tank body is provided with a water outlet pipe, the bottom of the tank body is provided with a discharging pipe, the lower end of the discharging pipe is detachably connected with; the utility model discloses still keeping better circulation after long-time the use, still being provided with the filtration dustcoat, playing dual filtration's effect, when filtering the inner cover and damaging, the filtration dustcoat can play the filter effect equally, is fit for using widely.

Description

Sand filtering device special for oil extraction and water injection

Technical Field

The utility model relates to an oil recovery water injection filters technical field, especially relates to a special sand filter of oil recovery water injection device.

Background

At present, the commonly used oil well sand prevention processes at home and abroad are mainly divided into 2 types of chemical sand prevention and mechanical sand prevention. The chemical sand control has the advantages that the implementation of various operation measures is not influenced, but the sand control strength and the validity period are limited to a certain extent; the mechanical sand control method is a common sand control method in oil fields, and the common mechanical sand control method comprises a sand filtering pipe, a wire-wound screen pipe, a slotted screen pipe, an external gravel packing screen pipe, an expandable screen pipe and the like, and although the mechanical sand control methods have certain advantages, the mechanical sand control methods are difficult to be competent for the sand control task of an oil well with serious sand production in the middle and later periods or multiple times of sand control operation.

The existing sand filtering device can cause blockage after being used for a long time, is troublesome to clean and has poor filtering effect;

in order to solve the problems, the application provides a special sand filter for oil extraction and water injection.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a special sand filter of oil recovery water injection device has the characteristics that the filter effect is good, conveniently collect impurity.

(II) technical scheme

In order to solve the problems, the utility model provides a special sand filtering device for oil extraction and water injection, which comprises a tank body, an installation barrel is arranged at the bottom in the top of the tank body, a filtering inner cover is arranged at the lower part of the installation barrel, a first annular plate is fixed at the lower part of the outer wall of the filtering inner cover, the outer wall of the first annular plate is connected with the inner wall of the tank body, a filtering outer cover is arranged at the upper part of the installation barrel, a second annular plate is fixed at the lower part of the outer wall of the filtering outer cover, the outer wall of the second annular plate is connected with the inner wall of the tank body, a rotating shaft is rotatably matched in the installation barrel, the lower end of the rotating shaft extends to the inside of the filtering inner cover, a fan blade mechanism is arranged at the upper part in the filtering inner cover, a water inlet pipe is connected at the rear part of the left side of, the bottom of the tank body is provided with a discharge pipe, the lower end of the discharge pipe is detachably connected with a collection box, and a first helical blade is arranged on the outer wall of a rotating shaft in the tank body.

Preferably, the outer filter cover is located outside the inner filter cover.

Preferably, the fan blade mechanism comprises a fixed cylinder fixed on the rotating shaft, connecting rods are fixed on the outer wall of the fixed cylinder at intervals in the circumferential direction, and fan blades are fixed at the other ends of the connecting rods.

Preferably, a bearing piece is fixed in the mounting cylinder, and the rotating shaft is fixed in an inner ring of the bearing piece.

Preferably, the discharging pipe is provided with a funnel-shaped material guide cover, and a second helical blade is arranged in the discharging pipe and on a rotating shaft above the material guide cover.

Preferably, a third helical blade is mounted on the rotating shaft below the second helical blade, and the third helical blade extends into the collecting box.

Preferably, the collecting tank is connected with the discharging pipe in a sealing mode through a flange.

Preferably, the diameters of the first helical blade, the second helical blade and the third helical blade are sequentially reduced.

The above technical scheme of the utility model has following profitable technological effect:

when the water is supplied to the water inlet pipe, the tap water enters the inner filtering cover, the impact force of the water flow acts on the fan blades, so that the fan blades rotate anticlockwise, thereby driving the rotating shaft to rotate, so that the first helical blade, the second helical blade and the third helical blade all start to rotate, because the rotation of the helical blade can lead the impurities to flow to the collecting box along the helical blade, the design is ingenious, the impurities are prevented from being attached to the inner filtering cover, when the impurities are attached to the inner filtering cover, the rotation of the helical blade drives the rotation of the water flow, so that the impurities attached to the inner filtering cover can fall off, thereby improving the service time of the device, the device still keeps better circulation after long-time use, and the filtering outer cover is arranged to play the role of double filtering, when filtering the inner cover and damaging, filter the dustcoat and can play the filter effect equally, be fit for using widely.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view of B in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-3, the utility model provides a special sand filter for oil extraction and water injection, which comprises a tank body 1, an installation barrel 16 is arranged at the bottom in the top of the tank body 1, a filter inner cover 3 is installed at the lower part of the installation barrel 16, a first annular plate 9 is fixed at the lower part of the outer wall of the filter inner cover 3, the outer wall of the first annular plate 9 is connected with the inner wall of the tank body 1, a filter outer cover 2 is installed at the upper part of the installation barrel 16, a second annular plate 8 is fixed at the lower part of the outer wall of the filter outer cover 2, the outer wall of the second annular plate 8 is connected with the inner wall of the tank body 1, a rotating shaft 6 is rotatably matched in the installation barrel 16, the lower end of the rotating shaft 6 extends to the inside of the filter inner cover 3, a fan blade mechanism is installed at the upper part in the filter inner cover 3, a water inlet pipe 4 is connected at the rear part of the left side, the bottom of the tank body 1 is provided with a discharge pipe 18, the lower end of the discharge pipe 18 is detachably connected with a collection box 11, and the outer wall of a rotating shaft 6 in the tank body 1 is provided with a first helical blade 7.

Further, the tank body 1 comprises an upper tank body and a lower tank body which are hermetically connected through a flange, and the inner parts of the tank body 1 are convenient to maintain after the tank body and the lower tank body are disassembled;

still further, the upper end of the rotating shaft 6 can extend to the outside of the tank body 1, so that the rotating shaft 6 can be connected with external driving equipment such as a driving motor and the like for driving the rotating shaft 6 to rotate, and the process of cleaning impurities is realized;

still further, the bottom of the collecting box 11 is provided with an opening, a box cover is in threaded sealing fit with the opening, and impurities can be discharged by opening the box cover.

In this embodiment, it should be noted that the outer filter housing 2 is located outside the inner filter housing 3.

In this embodiment, it should be noted that the fan blade mechanism includes a fixed cylinder 13 fixed on the rotating shaft 6, connecting rods 14 are fixed on the outer wall of the fixed cylinder 13 at intervals in the circumferential direction, and fan blades 15 are fixed on the other end of the connecting rods 14.

In this embodiment, it should be noted that a bearing member 17 is fixed in the mounting cylinder 16, and the rotating shaft 6 is fixed in an inner ring of the bearing member 17.

In this embodiment, a funnel-shaped material guiding cover 19 is installed on the discharging pipe 18, and the second helical blade 10 is installed on the rotating shaft 6 located in the discharging pipe 18 and above the material guiding cover 19.

In this embodiment, it should be noted that a third helical blade 12 is installed on the rotating shaft 6 below the second helical blade 10, and the third helical blade 12 extends into the collecting box 11.

In this embodiment, it should be noted that the collecting tank 11 and the discharging pipe 18 are connected by a flange seal.

In this embodiment, it should be noted that the diameters of the first helical blade 7, the second helical blade 10, and the third helical blade 12 are sequentially reduced.

In the embodiment of the utility model, when the water inlet pipe 4 is through, the tap water enters the inner filtering cover 3, the impact force of the water flow acts on the fan blade 15, thereby making the fan blade 15 rotate counterclockwise, and further driving the rotating shaft 6 to rotate, so that the first helical blade 7, the second helical blade 10 and the third helical blade 12 all start to rotate, when rotating, because the rotation of the helical blade can make the impurities flow along the helical blade to the collecting box 11, the design is ingenious, avoid the impurities to attach to the inner filtering cover 3, when attaching to the inner filtering cover 3, because the rotation of the helical blade drives the rotation of the water flow, the impurities attached to the inner filtering cover 3 can fall down, thereby improving the service life of the device, the device still keeps better circulation after long-time use, the outer filtering cover 2 is further provided, the double filtering effect is played, when the filtering inner cover 3 is damaged, the filtering outer cover 2 can also play a role in filtering, and is suitable for popularization and use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a special sand filter of oil recovery water injection, includes a jar body (1), its characterized in that, the bottom is provided with installation section of thick bamboo (16) in the top of jar body (1), filter inner cover (3) is installed to the lower part of installation section of thick bamboo (16), the outer wall lower part of filtering inner cover (3) is fixed with first annular slab (9), and the outer wall of first annular slab (9) is connected with the inner wall of jar body (1), filter dustcoat (2) is installed on the upper portion of installation section of thick bamboo (16), the outer wall lower part of filtering dustcoat (2) is fixed with second annular slab (8), the outer wall of second annular slab (8) is connected with the inner wall of jar body (1), and the inside normal running fit of installation section of thick bamboo (16) has pivot (6), the lower extreme of pivot (6) extends to the inside of filtering inner cover (3), and the upper portion is located and filters inner cover (3) and installs flabellum, the left side rear portion of filtering inner cover (3) is connected with inlet tube (4), and the other end of inlet tube (4) extends to the outside of the jar body (1), the left side upper portion of the jar body (1) is provided with outlet pipe (5), the bottom of the jar body (1) is provided with discharging pipe (18), the detachable collecting box (11) that is connected with of lower extreme of discharging pipe (18), install first helical blade (7) on pivot (6) outer wall that is arranged in the jar body (1).

2. The sand filter special for oil extraction and water injection according to claim 1, wherein the outer filter cover (2) is positioned outside the inner filter cover (3).

3. The sand filtering device special for oil extraction and water injection as claimed in claim 1, wherein the fan blade mechanism comprises a fixed cylinder (13) fixed on the rotating shaft (6), connecting rods (14) are fixed on the outer wall of the fixed cylinder (13) at intervals in the circumferential direction, and fan blades (15) are fixed at the other end of the connecting rods (14).

4. The sand filter special for oil extraction and water injection according to claim 1, wherein a bearing member (17) is fixed in the mounting cylinder (16), and the rotating shaft (6) is fixed in an inner ring of the bearing member (17).

5. The sand filter device special for oil extraction and water injection according to claim 1, wherein the discharging pipe (18) is provided with a funnel-shaped material guiding cover (19), and the rotating shaft (6) positioned in the discharging pipe (18) and above the material guiding cover (19) is provided with the second helical blade (10).

6. The sand filter special for oil extraction and water injection of claim 5, wherein the third helical blade (12) is installed on the rotating shaft (6) below the second helical blade (10), and the third helical blade (12) extends into the collecting box (11).

7. The sand filter special for oil extraction and water injection according to claim 6, wherein the collecting tank (11) and the discharging pipe (18) are connected in a sealing manner through a flange.

8. The sand filter special for oil extraction and water injection according to claim 7, wherein the diameters of the first helical blade (7), the second helical blade (10) and the third helical blade (12) are sequentially reduced.