Oil exploitation sand filtering device

Abstract

The utility model discloses a sand filtering device for oil exploitation, which relates to the technical field of oil exploitation and comprises a tank body, a motor is fixedly mounted at the top of the tank body, the output end of the motor penetrates through the top of the tank body and is fixedly connected with a central shaft, and one end, far away from the motor, of the central shaft is rotatably connected to the bottom of the tank body. An oil suction pump shell is fixedly connected to the top of the inner wall of the tank, an impeller is fixedly connected to the surface, in the oil suction pump shell, of the center shaft, and a conveying opening is formed in the bottom of the center shaft. According to the sand filtering device for oil exploitation, gravel particles attached to the inner wall of the tank body are scraped off, gravel falls on the surface of a separation plate when entering an oil-sand separation cabinet through an oil-sand output pipe, and the separation plate can filter petroleum in the gravel to enable the petroleum to enter the bottom of the oil-sand separation cabinet; the content of impurities in the petroleum subjected to preliminary filtration treatment is greatly reduced, and the use amount of chemicals for removing the impurities can be reduced in the subsequent refining and processing processes.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, and in particular to an oil extraction sand filtering device. Background Technology

[0002] Petroleum is a fluid mineral buried deep underground. In 1982, global oil production was 2.644 billion tons, and natural gas production was 1.5829 trillion cubic meters. The extraction of oil involves the flow of oil and gas from the reservoir to the bottom of the well, and then from the bottom to the wellhead.

[0003] In existing oil extraction processes, oil is typically filtered after extraction to remove sand and gravel. This prevents solid impurities such as sand and rock fragments from damaging the inner walls of pumps, valves, and pipelines during subsequent refining, thus accelerating equipment wear. Therefore, this solution proposes an oil extraction sand filtering device capable of initially filtering sand and gravel from oil to address these issues. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an oil extraction sand filtering device that can solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil extraction sand filtering device, comprising a tank, a motor fixedly installed on the top of the tank, a central shaft fixedly connected to the output end of the motor through the top of the tank, one end of the central shaft away from the motor being rotatably connected to the bottom of the tank, an oil suction pump housing fixedly connected to the top of the inner wall of the tank, an impeller fixedly connected to the surface inside the central shaft of the oil suction pump housing, a delivery port opened at the bottom of the central shaft, an input pipe fixedly connected to one side of the oil suction pump housing, and the other end of the input pipe extending through the surface of the tank.

[0006] Preferably, the inner wall of the tank is provided with a sliding block, and the sliding block is slidably connected to a sliding groove.

[0007] Preferably, a filter plate is fixedly connected to one side of the sliding groove, and the central shaft is rotatably connected inside the filter plate.

[0008] Preferably, the surface of the filter plate is provided with a sand suction port, and the bottom of the filter plate is fixedly connected to an oil pump housing, with the sand suction port and the oil pump housing communicating with each other.

[0009] Preferably, an impeller is also fixedly connected to the inner surface of the oil pump housing on the central shaft, and a sand scraper is fixedly connected to the surface of the central shaft, with the sand scraper slidably connected to the surface of the filter plate.

[0010] Preferably, the other end of the sand suction port is fixedly connected to a tank wall scraper, which is slidably connected to the inner wall surface of the tank.

[0011] Preferably, an oil sand output pipe is fixedly connected to the bottom of the oil pump housing, and the other end of the oil sand output pipe extends through the surface of the tank. The oil sand output pipe has an oil filter hole on the surface inside the tank.

[0012] Preferably, the other end of the oil sand output pipe is fixedly connected to an oil sand separator, the inside of the oil sand separator is fixedly connected to a separator plate, and a door is rotatably connected to one side of the oil sand separator.

[0013] Preferably, an oil outlet pipe is fixedly connected to the bottom of the tank, and the end of the oil outlet pipe away from the tank is also fixedly connected to one side of the oil-sand separator.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) In this oil extraction sand filtering device, when the sand scraper moves, it will drive the tank wall scraper to move, thereby scraping off the sand particles attached to the inner wall of the tank. When the sand enters the oil sand separator through the oil sand output pipe, it falls on the surface of the separation plate. The separation plate will filter the oil in the sand and cause it to enter the bottom of the oil sand separator. After the initial filtration treatment, the impurity content of the oil is greatly reduced, which can reduce the amount of reagents used to remove impurities in the subsequent refining and processing.

[0016] (2) When the oil extraction sand filter device starts the motor, it will drive the central shaft to rotate. When the central shaft rotates, it will drive the impeller to rotate inside the oil suction pump casing. When the impeller rotates, it will extract the crude oil transported by the input pipe and then input it into the tank through the conveying port at the bottom of the central shaft for further filtration. The pumping by the impeller can ensure that the oil can overcome terrain obstacles smoothly and achieve long-distance, high-drop transportation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of a sand filtering device for oil extraction according to the present invention;

[0019] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0020] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0021] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0022] Reference numerals: 1. Tank body; 2. Motor; 3. Input pipe; 4. Central shaft; 5. Oil suction pump housing; 6. Impeller; 7. Delivery port; 8. Tank wall scraper; 9. Filter plate; 10. Sand suction port; 11. Oil delivery pump housing; 12. Sliding groove; 13. Sliding block; 14. Oil-sand output pipe; 15. Oil-sand separation cabinet; 16. Separation plate; 17. Oil outlet pipe; 18. Oil filter hole; 19. Cabinet door; 20. Sand scraper. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: an oil extraction sand filtering device, including a tank 1, a motor 2 fixedly installed on the top of the tank 1, a central shaft 4 fixedly connected to the output end of the motor 2 through the top of the tank 1, the end of the central shaft 4 away from the motor 2 being rotatably connected to the bottom of the tank 1, an oil suction pump housing 5 fixedly connected to the top of the inner wall of the tank 1, an impeller 6 fixedly connected to the surface inside the oil suction pump housing 5 on the central shaft 4, a delivery port 7 opened at the bottom of the central shaft 4, an input pipe 3 fixedly connected to one side of the oil suction pump housing 5, and the other end of the input pipe 3 extending through the surface of the tank 1.

[0025] When oil is extracted, motor 2 is started. When motor 2 starts, it drives the central shaft 4 to rotate. When the central shaft 4 rotates, it drives the impeller 6 to rotate inside the oil suction pump housing 5. When the impeller 6 rotates, it extracts the crude oil transported by the input pipe 3 and then inputs it into the tank 1 through the conveying port 7 at the bottom of the central shaft 4 for further filtration. The pumping by the impeller 6 can ensure that the oil can overcome terrain obstacles and achieve long-distance, high-drop transportation.

[0026] A sliding block 13 is provided on the inner wall of the tank body 1. A sliding groove 12 is slidably connected inside the sliding block 13. A filter plate 9 is fixedly connected to one side of the sliding groove 12. A central shaft 4 is rotatably connected inside the filter plate 9. A sand suction port 10 is provided on the surface of the filter plate 9. An oil pump housing 11 is fixedly connected to the bottom of the filter plate 9. The sand suction port 10 and the oil pump housing 11 are interconnected. An impeller 6 is also fixedly connected to the inner surface of the oil pump housing 11 on the central shaft 4. A sand scraper 20 is fixedly connected to the surface of the central shaft 4. The sand scraper 20 is slidably connected to the filter plate 11. On the surface of plate 9, the other end of the sand suction port 10 is fixedly connected to a tank wall scraper 8. The tank wall scraper 8 is slidably connected to the inner wall surface of the tank body 1. The bottom of the oil pump housing 11 is fixedly connected to an oil sand output pipe 14. The other end of the oil sand output pipe 14 extends through the surface of the tank body 1. The oil sand output pipe 14 has an oil filter hole 18 on the inner surface of the tank body 1. The other end of the oil sand output pipe 14 is fixedly connected to an oil sand separator 15. The inside of the oil sand separator 15 is fixedly connected to a separation plate 16. A cabinet door 19 is rotatably connected to one side of the oil sand separator 15.

[0027] When oil is pumped into the tank 1, it is filtered through the filter plate 9, which removes sand and gravel from the oil. When the central shaft 4 rotates, it drives the sand scraper 20 to scrape the sand and gravel from the surface of the filter plate 9. This allows the sand and gravel to be scraped into the oil pump housing 11 through the sand suction port 10 as the filter plate 9 rotates. The sand and gravel are then transported along with the oil through the oil-sand output pipe 14 at the bottom of the oil pump housing 11 into the oil-sand separator 15. As the sand and gravel pass through the oil-sand output pipe 14, the oil passes through the oil filter holes 18 on the surface of the oil-sand output pipe 14. The filtration system filters excess oil into the tank 1. When the sand scraper 20 moves, it drives the tank wall scraper 8 to move, thereby scraping off the sand particles attached to the inner wall of the tank 1. When the sand enters the oil-sand separator 15 through the oil-sand output pipe 14, it falls onto the surface of the separation plate 16. The separation plate 16 filters the oil in the sand, causing it to enter the bottom of the oil-sand separator 15. After the initial filtration, the impurity content of the oil is greatly reduced, which can reduce the amount of reagents used to remove impurities in the subsequent refining and processing.

[0028] An oil outlet pipe 17 is fixedly connected to the bottom of the tank body 1, and the end of the oil outlet pipe 17 away from the tank body 1 is also fixedly connected to one side of the oil-sand separator 15.

[0029] The oil inside the tank 1 is filtered by the filter plate 9 and then enters the oil sand separator 15 through the oil outlet pipe 17, thereby completing the filtration and storage of the oil.

[0030] Working principle:

[0031] When oil is extracted, motor 2 is started. When motor 2 starts, it drives the central shaft 4 to rotate. When the central shaft 4 rotates, it drives the impeller 6 to rotate inside the oil suction pump housing 5. When the impeller 6 rotates, it extracts the crude oil delivered by the input pipe 3 and then inputs it into the tank 1 through the delivery port 7 at the bottom of the central shaft 4 for further filtration.

[0032] When oil is pumped into the tank 1, it is filtered through the filter plate 9, which filters out sand and gravel inside the oil. When the central shaft 4 rotates, it drives the sand scraper 20 to scrape the sand and gravel on the surface of the filter plate 9. Thus, when the filter plate 9 rotates, the sand and gravel can be scraped into the oil pump housing 11 through the sand suction port 10. The sand and gravel are then transported into the oil sand separator 15 through the oil sand output pipe 14 at the bottom of the oil pump housing 11 along with the oil. When the sand and gravel and oil pass through the oil sand output pipe 14, the oil passes through the oil sand separator. The oil filter holes 18 on the surface of the output pipe 14 filter excess oil into the interior of the tank 1. When the sand scraper 20 moves, it will drive the tank wall scraper 8 to move, thereby scraping off the sand particles attached to the inner wall of the tank 1. When the sand enters the interior of the oil sand separator 15 through the oil sand output pipe 14, it falls on the surface of the separation plate 16. The separation plate 16 will filter the oil in the sand and cause it to enter the bottom of the oil sand separator 15. After the preliminary filtration treatment, the impurity content of the oil is greatly reduced.

[0033] The oil inside tank 1 is filtered by filter plate 9 and then enters the oil-sand separator 15 through oil outlet pipe 17.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An oil extraction sand filtering device, comprising a tank (1), characterized in that: A motor (2) is fixedly installed on the top of the tank (1). The output end of the motor (2) is fixedly connected to a central shaft (4) through the top of the tank (1). The end of the central shaft (4) away from the motor (2) is rotatably connected to the bottom of the tank (1). An oil suction pump housing (5) is fixedly connected to the top of the inner wall of the tank (1). An impeller (6) is fixedly connected to the surface inside the oil suction pump housing (5) of the central shaft (4). A delivery port (7) is opened at the bottom of the central shaft (4). An input pipe (3) is fixedly connected to one side of the oil suction pump housing (5). The other end of the input pipe (3) extends through the surface of the tank (1).

2. The oil extraction sand filtering device according to claim 1, characterized in that: The inner wall of the tank (1) is provided with a sliding block (13), and the sliding block (13) is slidably connected with a sliding groove (12).

3. The oil extraction sand filtering device according to claim 2, characterized in that: A filter plate (9) is fixedly connected to one side of the sliding groove (12), and the central shaft (4) is rotatably connected inside the filter plate (9).

4. The oil extraction sand filtering device according to claim 3, characterized in that: The filter plate (9) has a sand suction port (10) on its surface and an oil pump housing (11) is fixedly connected to the bottom of the filter plate (9). The sand suction port (10) and the oil pump housing (11) are interconnected.

5. The oil extraction sand filtering device according to claim 4, characterized in that: The central shaft (4) is also fixedly connected to an impeller (6) on the inner surface of the oil pump housing (11). A sand scraper (20) is fixedly connected to the surface of the central shaft (4), and the sand scraper (20) is slidably connected to the surface of the filter plate (9).

6. The oil extraction sand filtering device according to claim 5, characterized in that: The other end of the sand suction port (10) is fixedly connected to a tank wall scraper (8), which is slidably connected to the inner wall surface of the tank body (1).

7. The oil extraction sand filtering device according to claim 6, characterized in that: The bottom of the oil pump housing (11) is fixedly connected to an oil sand output pipe (14), the other end of which extends through the surface of the tank body (1), and the oil sand output pipe (14) has an oil filter hole (18) on the surface inside the tank body (1).

8. The oil extraction sand filtering device according to claim 7, characterized in that: The other end of the oil sand output pipe (14) is fixedly connected to an oil sand separator (15), and a separator plate (16) is fixedly connected inside the oil sand separator (15). A cabinet door (19) is rotatably connected to one side of the oil sand separator (15).

9. A sand-filtering device for oil extraction according to claim 8, characterized in that: The bottom of the tank (1) is fixedly connected to an oil outlet pipe (17), and the end of the oil outlet pipe (17) away from the tank (1) is also fixedly connected to one side of the oil-sand separator (15).

Images