Oil-sand separation device

Abstract

The utility model provides an oil-sand separation device, and mainly relates to the technical field of petroleum crude oil treatment. An oil-sand separation device comprises a shell, a protective cover fixedly arranged on the top of the inner wall of the shell, a transmission assembly fixedly arranged on the inner wall of the protective cover, a driving motor fixedly arranged on the outer ring of the shell, a top cover fixedly arranged on the inner wall of the shell, a liquid inlet pipe fixedly arranged on the top cover, and an inner filter cylinder arranged at the bottom of the top cover in a sleeving mode. The bottom of the outer filter cylinder is fixedly connected with the bottom of the inner wall of the shell, a sand discharging pipe is fixedly arranged at the bottom of the outer filter cylinder, and a liquid discharging pipe is fixedly arranged at the bottom of the shell. The oil filter has the beneficial effects that the solid gear and the hollow gear are driven by the driving gear to coaxially rotate reversely, so that the rotating directions of the inner filter cylinder and the outer filter cylinder are opposite, the throwing-out direction of oil is controlled, and the oil can conveniently penetrate through the two layers of filter cylinders to realize secondary filtration; two layers of filter cartridges are arranged in the shell, so that the solid and liquid separation effect is facilitated.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of petroleum crude oil treatment, and specifically relates to an oil sand separation device. Background Art

[0002] At present, in the field of petrochemical industry, after the oil is pumped out in the oil field, the sand-containing crude oil needs to be filtered and separated to realize oil sand separation, improve the separation and treatment efficiency of oil field products, and meet the technical requirements of oil field production. In the crude oil produced in the existing oil fields, the fine particles in the liquid mud sand account for a large proportion and are difficult to remove. The sand removal operation needs to be repeated for a long time. The sand removal is difficult, the sand removal efficiency is low, and the cost is relatively high. Therefore, we propose an oil sand separation device to solve the above problems. Content of the Utility Model

[0003] To achieve the above object, the utility model is realized through the following technical solutions:

[0004] An oil sand separation device includes a housing. A protective cover is fixedly arranged at the top of the inner wall of the housing. A transmission assembly is fixedly arranged on the inner wall of the protective cover. A driving motor is fixedly arranged on the outer ring of the housing. The driving motor is in transmission connection with the transmission assembly. A top cover is fixedly arranged on the inner wall of the housing. A liquid inlet pipe is fixedly arranged on the top cover. The liquid inlet pipe passes through the side of the housing. An inner filter cylinder is sleeved at the bottom of the top cover. An outer filter cylinder is sleeved outside the inner filter cylinder. The bottom of the outer filter cylinder is fixedly connected to the bottom of the inner wall of the housing. A sand discharge pipe is fixedly arranged at the bottom of the outer filter cylinder. The sand discharge pipe passes through the bottom of the housing. A liquid discharge pipe is fixedly arranged at the bottom of the housing.

[0005] The transmission assembly includes a driving gear, a solid gear, a hollow gear, and a cage. The cage is fixedly connected to the protective cover. The output shaft on the driving motor is fixedly connected to the driving gear. The solid gear is rotatably connected to the top of the cage. The hollow gear is rotatably connected to the bottom of the cage. The driving gear is meshed with both the solid gear and the hollow gear.

[0006] A hollow pipe is fixedly arranged at the bottom of the hollow gear. A main shaft is fixedly arranged at the bottom of the solid gear. The main shaft passes through the hollow gear and the hollow pipe.

[0007] The hollow pipe passes through the top cover. Fixing rods are arranged in an array near the bottom of the outer circle of the hollow pipe. The fixing rods are fixedly arranged at a position near the top of the inner wall of the inner filter cylinder.

[0008] A through hole is formed at the bottom of the inner filter cylinder. The main shaft passes through the inner filter cylinder. A fixing claw is fixedly arranged at the bottom of the main shaft. The fixing claw is fixedly connected to the bottom of the inner wall of the outer filter cylinder.

[0009] The outer ring of the inner filter cartridge is rotatably connected to the inner ring of the top cover near the top through a bearing ring. A first slewing bearing is fixedly arranged at the bottom of the inner filter cartridge. The bottom of the first slewing bearing is fixedly connected to a first support frame, and the first support frame is fixedly connected to the bottom of the inner wall of the outer filter cartridge.

[0010] A second slewing bearing is fixedly arranged at the bottom of the outer filter cartridge. The bottom of the second slewing bearing is fixedly connected to a second support frame, and the second support frame is fixedly connected to the bottom of the inner wall of the housing. The inner ring of the top of the outer filter cartridge is rotatably connected to the outer ring of the inner filter cartridge through a bearing ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The structure of the present utility model is simple and convenient for installation and use. The driving gear drives the solid gear and the hollow gear to rotate coaxially in the opposite direction, so that the rotation directions of the inner filter cartridge and the outer filter cartridge are opposite, thereby controlling the direction of the oil liquid being thrown out and facilitating the secondary filtration by passing through the two layers of filter cartridges. Two layers of filter cartridges are arranged inside the housing, and the filtering effects of the two layers of filter cartridges are different, which is beneficial to improving the separation effect of solids and liquids and improving the sand removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Att Figure 1 is a schematic diagram of the internal structure of the present utility model;

[0014] Att Figure 2 is a schematic diagram of the structures of the inner filter cartridge and the outer filter cartridge of the present utility model;

[0015] Att Figure 3 is a schematic diagram of the transmission assembly structure of the present utility model.

[0016] Reference numerals shown in the drawings: 1, housing; 2, protective cover; 3, transmission assembly; 301, driving gear; 302, solid gear; 303, hollow gear; 304, cage; 305, main shaft; 306, hollow tube; 307, fixed rod; 308, fixed claw; 4, driving motor; 5, top cover; 6, liquid inlet pipe; 7, inner filter cartridge; 8, outer filter cartridge; 9, sand discharge pipe; 10, liquid discharge pipe; 11, first slewing bearing; 12, first support frame; 13, second slewing bearing; 14, second support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In combination with the drawings and specific embodiments, the present utility model is further described. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0018] Combined with the attached drawings, an oil sand separation device includes a housing 1. At the top of the inner wall of the housing 1, a protective cover 2 is fixedly arranged. Inside the protective cover 2, a transmission component 3 is fixedly arranged. On the outer circle of the housing 1, a driving motor 4 is fixedly arranged. The driving motor 4 is in transmission connection with the transmission component 3. On the inner wall of the housing 1, a top cover 5 is fixedly arranged. On the top cover 5, a liquid inlet pipe 6 is fixedly arranged. The liquid inlet pipe 6 passes through the side of the housing 1. At the bottom of the top cover 5, an inner filter cylinder 7 is sleeved. An outer filter cylinder 8 is sleeved outside the inner filter cylinder 7. The bottom of the outer filter cylinder 8 is fixedly connected to the bottom of the inner wall of the housing 1. At the bottom of the outer filter cylinder 8, a sand discharge pipe 9 is fixedly arranged. The sand discharge pipe 9 passes through the bottom of the housing 1. At the bottom of the housing 1, a liquid discharge pipe 10 is fixedly arranged.

[0019] The transmission component 3 includes a driving gear 301, a solid gear 302, a hollow gear 303, and a cage 304. The cage 304 is fixedly connected to the protective cover 2. The output shaft on the driving motor 4 is fixedly connected to the driving gear 301. The output shaft passes through the side of the housing 1 and the protective cover 2, and drives the driving gear 301 to rotate through this structural design. The solid gear 302 is rotatably connected to the top of the cage 304. The hollow gear 303 is rotatably connected to the bottom of the cage 304. The driving gear 301 is simultaneously meshed with the solid gear 302 and the hollow gear 303. The rotation of the driving gear 301 drives the solid gear 302 and the hollow gear 303 to rotate in opposite directions.

[0020] At the bottom of the hollow gear 303, a hollow pipe 306 is fixedly arranged. At the bottom of the solid gear 302, a main shaft 305 is fixedly arranged. The main shaft 305 passes through the hollow gear 303 and the hollow pipe 306.

[0021] The hollow pipe 306 passes through the top cover 5. Near the bottom end of the outer circle of the hollow pipe 306, fixing rods 307 are arranged in an array. The fixing rods 307 are fixedly arranged at a position near the top of the inner wall of the inner filter cylinder 7. The hollow gear 303 drives the inner filter cylinder 7 to rotate through the hollow pipe 306.

[0022] At the bottom of the inner filter cylinder 7, through holes are provided. The main shaft 305 passes through the inner filter cylinder 7. At the bottom of the main shaft 305, a fixing claw 308 is fixedly arranged. The fixing claw 308 is fixedly connected to the bottom of the inner wall of the outer filter cylinder 8. The solid gear 302 drives the outer filter cylinder 8 to rotate through the main shaft 305. The rotation directions of the solid gear 302 and the hollow gear 303 are different, so the rotation directions of the inner filter cylinder 7 and the outer filter cylinder 8 are opposite.

[0023] The outer ring of the inner filter cylinder 7 is rotatably connected to the inner ring of the top cover 5 through a bearing ring near the top. The outer ring of the top cover 5 is fixedly connected to the inner wall of the housing 1 through an array of fixed plates. Through this structural design, the oil liquid in the inner filter cylinder 7 is prevented from splashing. The bottom of the inner filter cylinder 7 is fixedly provided with a first slewing support bearing 11. The bottom of the first slewing support bearing 11 is fixedly connected to a first support frame 12. The first support frame 12 is fixedly connected to the bottom of the inner wall of the outer filter cylinder 8. Through this structural design, the inner filter cylinder 7 is limited in position.

[0024] The bottom of the outer filter cylinder 8 is fixedly provided with a second slewing support bearing 13. The bottom of the second slewing support bearing 13 is fixedly connected to a second support frame 14. The second support frame 14 is fixedly connected to the bottom of the inner wall of the housing 1. Through this structural design, the rotation of the outer filter cylinder 8 is ensured to be stable. The inner ring of the top of the outer filter cylinder 8 is rotatably connected to the outer ring of the inner filter cylinder 7 through a bearing ring. Through this structural design, the outer filter cylinder 8 is limited in position.

[0025] When the device is in use, the crude oil enters the inner filter cylinder 7 in the outer shell main body 1 through the liquid inlet pipe 6. The driving motor 4 is started through an external power supply. The driving motor 4 drives the driving gear 301 to rotate. The driving gear 301 drives the solid gear 302 and the hollow gear 303 to rotate, realizing coaxial reverse rotation, thereby driving the inner filter cylinder 7 and the outer filter cylinder 8 to rotate counterclockwise and clockwise respectively; the crude oil is thrown out from the inner filter cylinder 7 for the first filtration, and then passes through the outer filter cylinder 8 for the second filtration, thereby improving the filtration effect. The filtered crude oil is discharged from the liquid discharge pipe 10, and the sediment in the inner filter cylinder 7 and the outer filter cylinder 8 is discharged through the sand discharge pipe 9.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oil sand separation device, comprising a housing (1), characterized in that: A protective cover (2) is fixedly arranged on the top of the inner wall of the shell (1), a transmission assembly (3) is fixedly arranged on the inner wall of the protective cover (2), a driving motor (4) is fixedly arranged on the outer ring of the shell (1), and the driving motor (4) is transmission-connected to the transmission assembly (3), a top cover (5) is fixedly arranged on the inner wall of the shell (1), a liquid inlet pipe (6) is fixedly arranged on the top cover (5), and the liquid inlet pipe (6) passes through the side of the shell (1), an inner filter cartridge (7) is sleeved on the bottom of the top cover (5), an outer filter cartridge (8) is sleeved on the outer ring of the inner filter cartridge (7), and the bottom of the outer filter cartridge (8) is fixedly connected to the bottom of the inner wall of the shell (1), a sand discharge pipe (9) is fixedly arranged on the bottom of the outer filter cartridge (8), and the sand discharge pipe (9) passes through the bottom of the shell (1), and a liquid discharge pipe (10) is fixedly arranged on the bottom of the shell (1).

2. An oil sand separation device according to claim 1, characterized in that: The transmission assembly (3) comprises a driving gear (301), a solid gear (302), a hollow gear (303), and a retaining frame (304); the retaining frame (304) is fixedly connected to the protective cover (2); the output shaft on the driving motor (4) is fixedly connected to the driving gear (301); the solid gear (302) is rotatably connected to the top of the retaining frame (304); the hollow gear (303) is rotatably connected to the bottom of the retaining frame (304); and the driving gear (301) is meshedly connected to the solid gear (302) and the hollow gear (303) at the same time.

3. An oil sand separation device according to claim 2, characterized in that: A hollow tube (306) is fixedly arranged at the bottom of the hollow gear (303), and a main shaft (305) is fixedly arranged at the bottom of the solid gear (302), and the main shaft (305) passes through the hollow gear (303) and the hollow tube (306).

4. An oil sand separation device according to claim 3, characterized in that: The hollow tube (306) passes through the top cover (5), and a fixing rod (307) is arranged in an array near the bottom end of the outer circle of the hollow tube (306), and the fixing rod (307) is fixedly arranged on the inner wall of the inner filter cartridge (7) near the top.

5. The oil sand separation device according to claim 3, characterized in that: A through hole is provided at the bottom of the inner filter cartridge (7), and the main shaft (305) passes through the inner filter cartridge (7). A fixing claw (308) is fixedly provided at the bottom of the main shaft (305), and the fixing claw (308) is fixedly connected to the bottom of the inner wall of the outer filter cartridge (8).

6. The oil sand separation device according to claim 1, characterized in that: The outer ring of the inner filter cartridge (7) is rotatably connected to the inner ring of the top cover (5) via a bearing ring near the top; a first slewing support bearing (11) is fixedly arranged at the bottom of the inner filter cartridge (7); the bottom of the first slewing support bearing (11) is fixedly connected to a first support frame (12); and the first support frame (12) is fixedly connected to the bottom of the inner wall of the outer filter cartridge (8).

7. The oil sand separation device according to claim 1, characterized in that: A second slewing support bearing (13) is fixedly arranged at the bottom of the outer filter cartridge (8); the bottom of the second slewing support bearing (13) is fixedly connected to a second support frame (14); the second support frame (14) is fixedly connected to the bottom of the inner wall of the shell (1); the inner ring at the top of the outer filter cartridge (8) is rotatably connected to the outer ring of the inner filter cartridge (7) via a bearing ring.

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