Oil exploitation sand filtering device

Abstract

The utility model belongs to the technical field of oil exploitation, and particularly relates to an oil exploitation sand filtering device which comprises a base. An inclined fixing plate is fixedly connected to the base, a cavity sleeve is rotationally installed in the inclined fixing plate, a pipe sleeve is rotationally installed at one end of the cavity sleeve, an oil inlet pipe is fixed in the pipe sleeve, a hollow pipe is rotationally installed at the other end of the cavity sleeve, and spiral conveying blades are fixed to the outer circumferential face of the hollow pipe. An oil leakage hole is formed in the hollow pipe, the end, close to the inclined fixing plate, of the hollow pipe is sleeved with a sealing cover plate, and the circumferential face of the cavity sleeve is sleeved with a driven gear. When filtering and screening are carried out, petroleum and gravel can be screened and separated, meanwhile, intercepted and filtered gravel particles can be conveniently discharged out of the screening cylinder, the gravel particles are prevented from being accumulated in the screening cylinder, filtering holes in the screening cylinder are prevented from being blocked, and therefore the screening effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil exploitation, in particular to an oil exploitation sand filtering device. Background Art

[0002] Oil is a fluid mineral buried deep underground. Oil extraction refers to the act of digging and extracting oil from places where oil is stored. The extracted oil will carry a large amount of sand and gravel. The oil carrying sand and gravel will hit and rub the equipment when it is used. After long-term use, it will reduce the service life of the equipment. Therefore, it is necessary to filter and remove the sand and gravel contained in the oil.

[0003] A Chinese patent with announcement number CN114177679B discloses a sand and gravel filtering device for oil production, including a feed guide pipe, the output end of the feed guide pipe is fixedly connected to an internal filtering mechanism, the output end of the internal filtering mechanism is fixedly connected to a discharge outlet, the internal filtering mechanism includes a filter slot, one end of the inner side of the filter slot is rotatably connected to a folded filter plate, a movable slot is provided in the middle position of one side of the filter slot, the left end of the folded filter plate is fixedly connected to an external extension pull plate, the external extension pull plate penetrates and extends to the outside of the movable slot; the sand and gravel filtering device for oil production achieves the purpose of increasing oil transmission resistance, reducing oil flow rate, and filtering sand and gravel in oil.

[0004] The existing oil production sand filter device is not convenient for discharging the intercepted and filtered sand and gravel particles from the screening cylinder during filtering and screening, and the sand and gravel particles are easily accumulated in the screening cylinder, resulting in clogging of the filter holes on the screening cylinder, thereby affecting the screening effect; therefore, a oil production sand filter device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a sand filtering device for oil production.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a kind of oil production sand filtering device described in the utility model comprises a base; an inclined fixed plate is fixedly connected to the base, a cavity sleeve is rotatably installed in the inclined fixed plate, a pipe sleeve is rotatably installed at one end of the cavity sleeve, an oil inlet pipe is fixed in the pipe sleeve, a hollow tube is rotatably installed at the other end of the cavity sleeve, a spiral conveying blade is fixed on the outer circumferential surface of the hollow tube, and the spiral conveying blade is arranged in a screening cylinder, an oil leakage hole is opened on the hollow tube, a sealing cover plate is sleeved on one end of the hollow tube close to the inclined fixed plate, a driven gear is sleeved on the circumferential surface of the cavity sleeve, a first motor is installed on the inclined fixed plate, a driving gear is installed on the output end of the first motor, and the driving gear and the driven gear are meshed with each other, two rotating rods are rotatably installed at the bottom end of the inclined fixed plate, guide rollers are sleeved on the outer circumferential surfaces of the two rotating rods, and a first rotating rod is installed on the outer wall of the inclined fixed plate. The second motor has two output ends connected to the end of one of the rotating rods, and the two guide rollers cooperate to rotate and install a screening drum, and one end of the screening drum near the inclined fixed plate is in close contact with the sealing cover plate. When filtering and screening is performed, the second motor is operated to make the guide roller drive the screening drum to rotate, so that the sand and gravel are intercepted in the screening drum, and the oil without sand and gravel flows into the arc receiving trough through the filter holes in the screening drum, thereby realizing the screening and separation of sand and gravel from oil. At the same time, the first motor is operated to make the driving gear rotate, and then the driven gear drives the cavity sleeve to rotate accordingly, so that the spiral conveying blade also rotates, and then the sand and gravel intercepted in the screening drum can be pushed out of the screening drum through the spiral conveying blade, thereby realizing the screening and separation of oil and sand and gravel, and also facilitating the discharge of the intercepted and filtered sand and gravel particles from the screening drum, avoiding the accumulation of sand and gravel particles in the screening drum, and preventing the filter holes on the screening drum from being blocked, thereby effectively improving the screening effect.

[0007] An arc-shaped receiving trough is fixedly connected to the bottom end of the inclined fixed plate. An oil outlet hole is opened on the arc-shaped receiving trough. An oil outlet pipe is fixed in the oil outlet hole. When the device is used, the arc-shaped receiving trough is provided to facilitate the collection of oil without sand and gravel, and finally discharge it through the oil outlet pipe.

[0008] Preferably, the upper end of the inclined fixed plate is fixedly connected to a support plate, a fixed seat is installed on the support plate, a pendulum is hinged in the fixed seat, a spring is fixed between the pendulum and the support plate, a support seat is fixedly connected to the support plate, a third motor is installed on the support seat, the output end of the third motor is connected to a rotating shaft, a rotating disk is mounted on the rotating shaft, an eccentric rod is fixed on the rotating disk, during the filtering and screening process, the third motor is operated to make the rotating disk drive the eccentric rod to rotate, and with the cooperation of the spring, the pendulum is reciprocated to knock the screening drum, thereby knocking down the residue in the filter holes on the screening drum, thereby preventing the filter holes on the screening drum from being blocked.

[0009] The utility model is beneficial in that:

[0010] 1. When filtering and screening, the utility model operates the first motor to rotate the driving gear, and then the driven gear drives the cavity sleeve to rotate, so that the spiral conveying blade also rotates, and then the sand and gravel intercepted in the screening cylinder can be pushed out of the screening cylinder through the spiral conveying blade, thereby realizing the screening and separation of oil and sand and gravel, and facilitating the discharge of the intercepted and filtered sand and gravel particles from the screening cylinder, avoiding the accumulation of sand and gravel particles in the screening cylinder, and preventing the filter holes on the screening cylinder from being blocked, thereby effectively improving the screening effect;

[0011] 2. During the filtering and screening process, the utility model operates the third motor to make the rotating disk drive the eccentric rod to rotate, and with the cooperation of the spring, the pendulum reciprocates to knock the screening cylinder, thereby knocking the residue in the filter holes on the screening cylinder off to prevent the filter holes on the screening cylinder from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the overall main perspective structure of the screening and filtering device;

[0014] Figure 2 It is a schematic diagram of the overall left-side stereoscopic structure of the screening and filtering device;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the pusher assembly;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the material receiving trough from a top view;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the striking component.

[0018] In the figure: 1. base; 2. inclined fixing plate; 3. cavity sleeve; 4. pipe sleeve; 5. oil inlet pipe; 6. hollow pipe; 7. spiral conveying blade; 8. oil leakage hole; 9. sealing cover plate; 10. driven gear; 11. first motor; 12. driving gear; 13. second motor; 14. guide roller; 15. screening cylinder; 16. arc-shaped receiving trough; 17. oil outlet pipe; 18. support plate; 19. fixed seat; 20. pendulum; 21. spring; 22. support seat; 23. third motor; 24. rotating shaft; 25. rotating disk; 26. eccentric rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4As shown, a sand filter device for oil production includes a base 1; an inclined fixed plate 2 is fixedly connected to the base 1, a cavity sleeve 3 is rotatably installed in the inclined fixed plate 2, a pipe sleeve 4 is rotatably installed at one end of the cavity sleeve 3, an oil inlet pipe 5 is fixed in the pipe sleeve 4, a hollow tube 6 is rotatably installed at the other end of the cavity sleeve 3, a spiral conveying blade 7 is fixed on the outer circumferential surface of the hollow tube 6, and the spiral conveying blade 7 is arranged in a screening cylinder 15, an oil leakage hole 8 is opened on the hollow tube 6, and a sealing cover plate is sleeved on one end of the hollow tube 6 close to the inclined fixed plate 2 9, a driven gear 10 is mounted on the circumferential surface of the cavity sleeve 3, a first motor 11 is mounted on the inclined fixed plate 2, a driving gear 12 is mounted on the output end of the first motor 11, and the driving gear 12 and the driven gear 10 are meshed with each other, two rotating rods are rotatably mounted on the bottom end of the inclined fixed plate 2, and guide rollers 14 are mounted on the outer circumferential surfaces of the two rotating rods, a second motor 13 is mounted on the outer side wall of the inclined fixed plate 2, and the output end of the second motor 13 is connected to the end of one of the rotating rods, and the two guide rollers 14 cooperate to rotate A screening drum 15 is dynamically installed, and one end of the screening drum 15 close to the inclined fixed plate 2 is in close contact with the sealing cover plate 9; when filtering and screening, the oil containing sand and gravel particles flows into the screening drum 15 through the oil inlet pipe 5, and then the second motor 13 is operated to make the guide roller 14 drive the screening drum 15 to rotate, so that the sand and gravel are intercepted in the screening drum 15, and the oil without sand and gravel flows into the arc-shaped receiving trough 16 through the filter holes in the screening drum 15, thereby realizing the screening and separation of sand and gravel from oil. At the same time, the first motor 11 is operated, The driving gear 12 rotates, and then the driven gear 10 drives the cavity sleeve 3 to rotate, and the spiral conveying blade 7 also rotates, so that the sand and gravel intercepted in the screening cylinder 15 can be pushed out of the screening cylinder 15 through the spiral conveying blade 7, thereby realizing the screening and separation of oil and sand and gravel, and facilitating the discharge of the intercepted and filtered sand and gravel particles from the screening cylinder 15, avoiding the accumulation of sand and gravel particles in the screening cylinder 15, and preventing the filter holes on the screening cylinder 15 from being blocked, thereby effectively improving the screening effect.

[0021] An arc-shaped receiving groove 16 is fixedly connected to the bottom end of the inclined fixed plate 2, and an oil outlet hole is opened on the arc-shaped receiving groove 16, and an oil outlet pipe 17 is fixed in the oil outlet hole; when the device is used, the arc-shaped receiving groove 16 is provided to facilitate the collection of oil without sand and gravel, and finally discharge it through the oil outlet pipe 17.

[0022] See also Figure 5As shown, a support plate 18 is fixedly connected to the upper end of the inclined fixed plate 2, a fixed seat 19 is installed on the support plate 18, a pendulum 20 is hinged in the fixed seat 19, a spring 21 is fixedly connected between the pendulum 20 and the support plate 18, a support seat 22 is fixedly connected to the support plate 18, a third motor 23 is installed on the support seat 22, an output end of the third motor 23 is connected to a rotating shaft 24, a rotating disk 25 is mounted on the rotating shaft 24, and an eccentric rod 26 is fixedly connected to the rotating disk 25; during the filtering and screening process, the third motor 23 is operated to make the rotating disk 25 drive the eccentric rod 26 to rotate, and with the cooperation of the spring 21, the pendulum 20 reciprocates to knock the screening drum 15, so that the residue in the filter holes on the screening drum 15 can be knocked off, so as to prevent the filter holes on the screening drum 15 from being blocked.

[0023] Working principle: the existing oil production sand filter device is not convenient to discharge the intercepted and filtered sand and gravel particles from the screening drum during filtering and screening, which makes it easy for the sand and gravel particles to accumulate in the screening drum, resulting in clogging of the filter holes on the screening drum, thereby affecting the screening effect; therefore, in view of the above problem, a oil production sand filter device is proposed; during filtering and screening, the oil containing sand and gravel particles flows into the screening drum 15 through the oil inlet pipe 5, and then the second motor 13 is operated to make the guide roller 14 drive the screening drum 15 to rotate, so that the sand and gravel are intercepted in the screening drum 15, and the oil without sand and gravel passes through the filter holes in the screening drum 15. The particles flow into the arc-shaped receiving trough 16, thereby realizing the screening and separation of sand and gravel from oil. At the same time, the first motor 11 is operated to rotate the driving gear 12, thereby causing the driven gear 10 to drive the cavity sleeve 3 to rotate, and causing the spiral conveying blade 7 to rotate, thereby enabling the sand and gravel intercepted in the screening cylinder 15 to be pushed out of the screening cylinder 15 through the spiral conveying blade 7, thereby realizing the screening and separation of oil and sand and gravel, and facilitating the discharge of the intercepted and filtered sand and gravel particles from the screening cylinder 15, thereby avoiding the accumulation of sand and gravel particles in the screening cylinder 15 and preventing the filter holes on the screening cylinder 15 from being blocked, thereby effectively improving the screening effect.

[0024] During the filtering and screening process, the third motor 23 is operated to make the rotating disk 25 drive the eccentric rod 26 to rotate, and with the cooperation of the spring 21, the pendulum 20 reciprocates to knock the screening drum 15, thereby knocking the residue in the filter holes on the screening drum 15 off to prevent the filter holes on the screening drum 15 from being blocked.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sand filter device for oil production, characterized in that: The invention comprises a base (1); an inclined fixing plate (2) is fixedly connected to the base (1); a cavity sleeve (3) is rotatably mounted in the inclined fixing plate (2); a pipe sleeve (4) is rotatably mounted on one end of the cavity sleeve (3); an oil inlet pipe (5) is fixed in the pipe sleeve (4); a hollow pipe (6) is rotatably mounted on the other end of the cavity sleeve (3); a spiral conveying blade (7) is fixed on the outer circumferential surface of the hollow pipe (6); the spiral conveying blade (7) is arranged in a screening drum (15); and an oil leakage hole is opened on the hollow pipe (6). (8), a sealing cover plate (9) is mounted on one end of the hollow tube (6) close to the inclined fixed plate (2), a driven gear (10) is mounted on the circumferential surface of the cavity sleeve (3), a first motor (11) is mounted on the inclined fixed plate (2), a driving gear (12) is mounted on the output end of the first motor (11), and the driving gear (12) and the driven gear (10) are meshed with each other, and two rotating rods are rotatably mounted on the bottom end of the inclined fixed plate (2), and guide rollers (14) are mounted on the outer circumferential surfaces of the two rotating rods.

2. The oil production sand filtering device according to claim 1, characterized in that: A second motor (13) is mounted on the outer wall of the inclined fixed plate (2), the output end of the second motor (13) is connected to the end of one of the rotating rods, and a screening drum (15) is mounted on two guide rollers (14) for rotation, and one end of the screening drum (15) close to the inclined fixed plate (2) is in close contact with a sealing cover plate (9).

3. The oil production sand filtering device according to claim 1, characterized in that: An arc-shaped material receiving groove (16) is fixedly connected to the bottom end of the inclined fixed plate (2), an oil outlet hole is opened on the arc-shaped material receiving groove (16), and an oil outlet pipe (17) is fixed in the oil outlet hole.

4. The oil production sand filtering device according to claim 1, characterized in that: The upper end of the inclined fixed plate (2) is fixedly connected to a support plate (18), a fixing seat (19) is mounted on the support plate (18), a pendulum (20) is hingedly connected inside the fixing seat (19), and a spring (21) is fixedly connected between the pendulum (20) and the support plate (18).

5. The oil production sand filter device according to claim 4, characterized in that: A support seat (22) is fixedly connected to the support plate (18), and a third motor (23) is installed on the support seat (22).

6. The oil production sand filter device according to claim 5, characterized in that: The output end of the third motor (23) is connected to a rotating shaft (24), a rotating disk (25) is mounted on the rotating shaft (24), and an eccentric rod (26) is fixedly connected to the rotating disk (25).

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