Self-cleaning device for oil storage tank

Abstract

The utility model discloses a self-cleaning device for an oil storage tank, which relates to the technical field of oil storage tanks and particularly comprises an oil tank body, two sides of the oil tank body are provided with hemispherical shells, a spiral scraping strip is arranged in the oil tank body, two ends of the spiral scraping strip are connected with arc scraping strips, the outer ends of the hemispherical shells are connected with fixing rings, and the side ends of the fixing rings are connected with motors. By arranging a water spraying pipe and a high-pressure water suction pump, the inner wall of the oil tank body can be flushed with high-pressure water flow, by arranging a spiral scraping strip and an arc scraping strip, the inner walls of the oil tank body and the hemispherical shell can be scraped and cleaned by a starting motor, and stains on the inner wall of the oil tank body can be cleaned through cooperation of the two cleaning modes; meanwhile, falling stains can be pushed to move through rotation of the spiral scraping strip, so that the cleaning water and the stains are pushed to the blow-off pipe and discharged out of the oil tank body, the device does not need manual auxiliary cleaning, manpower can be saved, and the beneficial effects of being good in cleaning effect and high in cleaning efficiency are further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil storage tanks, in particular to an automatic cleaning device for oil storage tanks. Background Technique

[0002] An oil storage tank is a container for storing oil products, which plays an important role and significance in the petroleum industry. It can not only store and allocate oil products, ensure energy supply, but also improve transportation efficiency, ensure safe production, and protect the environment. Therefore, the design, construction, and maintenance of oil storage tanks are all indispensable important links in the petroleum industry.

[0003] When the oil storage tank is used for a long time, due to various organic compounds, additives, and moisture contained in the stored petroleum, chemical reactions will occur during the storage process, resulting in the formation of precipitates and corrosives. A large amount of sludge impurities will accumulate on the tank wall and bottom, and it needs to be cleaned regularly.

[0004] However, the traditional method for cleaning the internal dirt of the oil storage tank is generally that workers use a water pipe to manually perform high-pressure flushing and cooperate with a brush for cleaning. Its labor intensity is large, work efficiency is low, and the air in the tank is difficult to circulate, and it also contains oil and gas components, posing risks of poisoning and asphyxiation. Content of the Utility Model

[0005] In view of the deficiencies and defects in the prior art in the above background technique, such as the need for manual cleaning, large labor intensity, low work efficiency, and safety risks.

[0006] The automatic cleaning device for the oil storage tank disclosed by the utility model includes an oil tank body. Both sides of the oil tank body are hemispherical shells. A spiral scraping strip is arranged inside the oil tank body. Both ends of the spiral scraping strip are connected with arc scraping strips. The outer end of the hemispherical shell is connected with a fixing ring. The side end of the fixing ring is connected with a motor. The side end of the arc scraping strip is connected with a rotating shaft rod. A water spraying pipe is connected inside the rotating shaft rod. The side end of the water spraying pipe is connected with a water spraying head. The water inlet end of the water spraying pipe is connected with a rotating connector. A high-pressure water pump is arranged at the side end of the rotating connector. A sewage pipe is arranged at the lower end of the oil tank body.

[0007] Further, both the oil tank body and the hemispherical shell are double-layered, and the interlayer is filled with heat insulation cotton. The spiral scraping strip is slidably connected with the inner wall of the oil tank body, and the arc scraping strip is slidably connected with the inner wall of the hemispherical shell.

[0008] Further, the driving end of the motor is rotatably connected inside the fixing ring. The rotating shaft rod is rotatably connected inside the fixing ring. The driving end of the motor is connected with the rotating shaft rod. A mechanical seal ring is arranged between the rotating shaft rod and the fixing ring.

[0009] Further, the water spray pipe is located inside the spiral scraping strip and the arc scraping strip, and is arranged staggeredly with both, not in the same plane. The water spray head faces the inner wall of the oil tank, and the rotary connector is located at the outer end of the fixed ring.

[0010] Further, the water inlet end of the high-pressure water pump is connected to the water purifier, and the water outlet end is connected to the rotary connector. An oil outlet pipe is arranged at the lower end of the oil tank body, and the oil outlet pipe and the sewage discharge pipe are respectively located at the connection of the oil tank body and the hemispherical shell.

[0011] Further, gates are arranged in both the oil outlet pipe and the sewage discharge pipe. An oil inlet pipe is connected to the upper end of the oil tank body, a cap is arranged on the oil inlet pipe, and a support seat is arranged at the lower end of the oil tank body.

[0012] Further, a conductive ring is connected to the outer end of the fixed ring. The rotating shaft rod is slidably connected inside the conductive ring. A ground wire is connected to the lower end of the conductive ring, and the ground wire is connected to the ground or the ground wire.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing a water spray pipe and a high-pressure water pump, the high-pressure water pump injects purified water into the water spray pipe and then sprays it from the water spray head towards the inner wall of the oil tank. Starting the motor will drive the water spray pipe to rotate, thereby flushing the entire inner wall of the oil tank body with high-pressure water flow. By providing a spiral scraping strip and an arc scraping strip, starting the motor will drive the rotating shaft rod to rotate, so that the spiral scraping strip and the arc scraping strip can rotate inside the oil tank body and the hemispherical shell, thereby scraping and cleaning the dirt on the inner walls of the oil tank body and the hemispherical shell. Through the cooperation of the water spray pipe, the spiral scraping strip and the arc scraping strip, the stains on the inner wall of the oil tank can be cleaned up. At the same time, the rotation of the spiral scraping strip can push the fallen stains to move, thereby pushing the cleaning water and stains towards the sewage discharge pipe and discharging them from the oil tank body. The device does not require manual auxiliary cleaning, can save manpower, and also has the advantages of good cleaning effect and high cleaning efficiency.

[0015] 2. In the present utility model, by respectively providing a sewage discharge pipe and an oil outlet pipe, the oil outlet pipe is used for discharging oil, and the sewage discharge pipe is used for discharging sewage, thereby improving the quality and safety of the oil discharged from the oil outlet pipe. By providing a conductive ring and a ground wire, the static electricity inside the water spray pipe, the threaded scraping strip and the arc scraping strip can be conducted out, thus avoiding the danger of static electricity generating sparks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the device of the present utility model;

[0018] Figure 2 This is a schematic front view of the device of the present utility model;

[0019] Figure 3 This is a schematic internal structure view of the oil tank body of the present utility model;

[0020] Figure 4 This is a schematic structure view of the spiral scraping strip of the present utility model;

[0021] Figure 5 This is the present utility model Figure 4 Schematic structure view of area A.

[0022] In the figure: 1. Oil tank body; 2. Hemispherical shell; 3. Spiral scraping strip; 4. Arc scraping strip; 5. Fixed ring; 6. Motor; 7. Rotating shaft rod; 8. Water spray pipe; 9. Water spray head; 10. Rotary joint; 11. High-pressure water pump; 12. Drain pipe; 13. Mechanical seal ring; 14. Oil outlet pipe; 15. Oil inlet pipe; 16. Support seat; 17. Conductive ring; 18. Ground wire. Specific embodiments

[0023] The following will disclose multiple embodiments of the present utility model with illustrations. For the sake of clear description, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are unnecessary. In addition, for the sake of simplifying the illustrations, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0024] Please refer to Figure 1 、 Figure 2 For the self-cleaning device of the oil storage tank of the present utility model, it includes an oil tank body 1. The two sides of the oil tank body 1 are provided with hemispherical shells 2. The design of the hemispherical shells 2 helps to improve the load-bearing capacity and durability of the oil tank body 1, and can also enhance the protection measures and optimize the space utilization rate. Both the oil tank body 1 and the hemispherical shells 2 are double-layered, and their interlayers are filled with heat insulation cotton. The heat insulation cotton can prevent the transmission of external high temperature and can play a certain buffering and protective effect when the oil tank body 1 is collided. A drain pipe 12 is provided at the lower end of the oil tank body 1, and the drain pipe 12 is used to discharge dirt. An oil outlet pipe 14 is provided at the lower end of the oil tank body 1. The oil outlet pipe 14 and the drain pipe 12 are respectively located at the connection of the oil tank body 1 and the hemispherical shells 2. Gates are provided in both the oil outlet pipe 14 and the drain pipe 12. An oil inlet pipe 15 is connected to the upper end of the oil tank body 1, and a cap is provided on the oil inlet pipe 15. The cap is used to close the oil inlet pipe 15. A support seat 16 is provided at the lower end of the oil tank body 1. The support seat 16 lifts the oil tank body 1 off the ground, which can not only leave space for the oil outlet pipe 14 and the drain pipe 12, but also effectively prevent the ground moisture from corroding it.

[0025] Please refer to Figure 3 、 Figure 4 、 Figure 5 Inside the oil tank body 1, a spiral scraping strip 3 is arranged. The spiral scraping strip 3 is slidably connected to the inner wall of the oil tank body 1. Both ends of the spiral scraping strip 3 are connected with arc scraping strips 4. The arc scraping strips 4 are slidably connected to the inner wall of the hemispherical shell 2. The outer end of the hemispherical shell 2 is connected with a fixing ring 5. The side end of the fixing ring 5 is connected with a motor 6. The driving end of the motor 6 is rotatably connected inside the fixing ring 5. The fixing ring 5 is used to fix the motor 6. The side end of the arc scraping strip 4 is connected with a rotating shaft rod 7. The rotating shaft rod 7 is rotatably connected inside the fixing ring 5. The driving end of the motor 6 is connected with the rotating shaft rod 7. Thus, starting the motor 6 can drive the rotating shaft rod 7 to rotate. A mechanical seal ring 13 is arranged between the rotating shaft rod 7 and the fixing ring 5. The mechanical seal ring 13 is used to prevent air leakage and oil leakage from the connection gap between the rotating shaft rod 7 and the fixing ring 5, thereby ensuring the sealing performance of the oil tank body 1.

[0026] Please refer to Figure 3 、 Figure 4 Inside the rotating shaft rod 7, a water spraying pipe 8 is connected. The side end of the water spraying pipe 8 is connected with a water spraying head 9. The water spraying head 9 faces the inner wall of the oil tank body 1. The water spraying pipe 8 is located inside the spiral scraping strip 3 and the arc scraping strip 4, and is arranged staggeredly with both of them, not in the same plane. Thus, the water spraying pipe 8 will neither interfere with the scraping work of the spiral scraping strip 3 and the arc scraping strip 4, nor can the two hinder the water spraying head 9 from spraying water onto the inner wall of the oil tank body 1. The water inlet end of the water spraying pipe 8 is connected with a rotating connector 10. The rotating connector 10 is located at the outer end of the fixing ring 5. A high-pressure water pump 11 is arranged at the side end of the rotating connector 10. The water inlet end of the high-pressure water pump 11 is connected with a water purifier, and the water outlet end is connected with the rotating connector 10. Thus, starting the high-pressure water pump 11 can inject purified water into the water spraying pipe 8.

[0027] Please refer to Figure 5 The outer end of the fixing ring 5 is connected with a conductive ring 17. The rotating shaft rod 7 is slidably connected inside the conductive ring 17. The lower end of the conductive ring 17 is connected with a ground wire 18. The ground wire 18 is connected with the earth or a ground wire. Thus, the static electricity inside the water spraying pipe 8, the spiral scraping strip 3, and the arc scraping strip 4 can be conducted to the ground.

[0028] When using the present utility model: all the oil in the oil tank body 1 is discharged from the device through the oil outlet pipe 14, then the oil outlet pipe 14 is closed and the sewage discharge pipe 12 is opened, and the high-pressure water pump 11 is started to inject clean water into the water spray pipe 8. The clean water will be sprayed from the water spray head 9 towards the inner wall of the oil tank body 1. The motor 6 is started to drive the water spray pipe 8 to rotate, and at the same time drive the spiral scraping strip 3 and the arc scraping strip 4 to rotate. The water spray head 9 will conduct high-pressure water flow washing towards the inner wall of the oil tank body 1. The spiral scraping strip 3 and the arc scraping strip 4 scrape and clean the dirt on the inner walls of the oil tank body 1 and the hemispherical shell 2. The two cooperate to clean the stains in the oil tank body 1. At the same time, the rotation of the spiral scraping strip 3 can push the fallen stains to move, so as to push the cleaning water and stains towards the sewage discharge pipe 12, thereby discharging them from the oil tank body 1.

[0029] The above is only the embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. An automatic cleaning device for an oil storage tank, comprising an oil tank body (1), characterized in that: Both sides of the oil tank body (1) are provided with hemispherical shells (2). A spiral scraping strip (3) is arranged inside the oil tank body (1). Both ends of the spiral scraping strip (3) are connected with arc scraping strips (4). The outer end of the hemispherical shell (2) is connected with a fixing ring (5). A motor (6) is connected to the side end of the fixing ring (5). A rotating shaft rod (7) is connected to the side end of the arc scraping strip (4). A water spraying pipe (8) is connected inside the rotating shaft rod (7). A water spraying head (9) is connected to the side end of the water spraying pipe (8). The water inlet end of the water spraying pipe (8) is connected with a rotating connector (10). A high-pressure water pump (11) is arranged at the side end of the rotating connector (10). A sewage discharge pipe (12) is arranged at the lower end of the oil tank body (1).

2. The self-cleaning device for an oil storage tank according to claim 1, characterized in that: Both the oil tank body (1) and the hemispherical shell (2) are of double-layer structure, and heat insulation cotton is filled in the interlayer. The spiral scraping strip (3) is slidably connected with the inner wall of the oil tank body (1), and the arc scraping strip (4) is slidably connected with the inner wall of the hemispherical shell (2).

3. The self-cleaning device for an oil storage tank according to claim 1, characterized in that: The driving end of the motor (6) is rotatably connected inside the fixing ring (5). The rotating shaft rod (7) is rotatably connected inside the fixing ring (5). The driving end of the motor (6) is connected with the rotating shaft rod (7). A mechanical seal ring (13) is arranged between the rotating shaft rod (7) and the fixing ring (5).

4. The self-cleaning device for an oil storage tank according to claim 1, wherein: The water spraying pipe (8) is located inside the spiral scraping strip (3) and the arc scraping strip (4), and is arranged staggeredly with them and not in the same plane. The water spraying head (9) faces the inner wall of the oil tank body (1). The rotating connector (10) is located at the outer end of the fixing ring (5).

5. A self-cleaning device for an oil storage tank according to claim 1, characterized in that: The water inlet end of the high-pressure water pump (11) is connected with a water purifier, and the water outlet end is connected with the rotating connector (10). An oil outlet pipe (14) is arranged at the lower end of the oil tank body (1). The oil outlet pipe (14) and the sewage discharge pipe (12) are respectively located at the connection part of the oil tank body (1) and the hemispherical shell (2).

6. The self-cleaning device for an oil storage tank according to claim 5, characterized in that: Gate valves are arranged inside both the oil outlet pipe (14) and the sewage discharge pipe (12). An oil inlet pipe (15) is connected to the upper end of the oil tank body (1). A cap is arranged on the oil inlet pipe (15). A support seat (16) is arranged at the lower end of the oil tank body (1).

7. The self-cleaning device for an oil storage tank according to claim 1, characterized in that: A conductive ring (17) is connected to the outer end of the fixing ring (5). The rotating shaft rod (7) is slidably connected inside the conductive ring (17). A ground wire (18) is connected to the lower end of the conductive ring (17). The ground wire (18) is connected to the ground or a ground wire.

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