Crude oil stirring tank

Abstract

The utility model relates to the technical field of crude oil stirring tanks, and discloses a crude oil stirring tank which comprises a stirring tank body, a motor is fixedly connected to the bottom of the stirring tank body, a stirring paddle is fixedly connected to the output end of the motor, a tank cover is rotatably connected to the top of the stirring tank body, and a feeding pipe is fixedly connected to the top of the stirring tank body. A discharging pipe is fixedly connected to the side wall of the stirring tank, a filter screen is arranged on the side wall of the discharging pipe, a non-return assembly is arranged at the top of the feeding pipe, and a dismounting assembly is arranged at one end of the discharging pipe; the non-return assembly comprises a rubber plug. According to the utility model, when the crude oil normally flows from top to bottom, the crude oil drives the rubber plug to displace and then drives the limiting column to move, so that the spring I is compressed, the limiting column and the rubber plug are separated from the interior of the feeding hole, and the crude oil enters the stirring tank to be stirred, so that under the condition of pressure fluctuation in the stirring tank or change of an external environment, the stirring effect is improved. And a good sealing effect can be kept, and the sealing performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of crude oil mixing tank technology, and in particular to a crude oil mixing tank. Background Technology

[0002] In the oil processing industry, crude oil mixing tanks are among the most crucial pieces of equipment. Before refining, crude oil requires a series of pretreatment operations, among which the mixing process ensures thorough mixing of the crude oil with additives, thereby improving the efficiency and quality of subsequent refining processes. The performance of the mixing tank directly impacts the quality of the crude oil and production efficiency. With the continuous development of the oil processing industry, the requirements for crude oil mixing tanks are also increasing. They not only need to possess high-efficiency mixing capabilities but also need to perform well in feeding, filtration, and sealing. On large-scale oil production lines, the stability and reliability of crude oil mixing tanks are particularly important, as they relate to the smooth operation of the entire production process and the economic benefits of the enterprise. Therefore, developing a high-performance, structurally sound crude oil mixing tank is of significant practical importance.

[0003] Currently, common crude oil mixing tanks on the market mainly consist of a tank body, a mixing device, a feeding device, and a filtration device. The tank body is usually made of carbon steel or stainless steel to ensure its strength and corrosion resistance. The mixing device generally consists of a motor, a reducer, and a mixing paddle. The motor drives the mixing paddle to rotate inside the tank through the reducer, thereby agitating the crude oil. The feeding device is mostly connected by pipelines, and the entry of crude oil is controlled by valves. In terms of filtration, a filter screen is usually installed inside the tank to remove impurities from the crude oil. However, these existing technologies also have some shortcomings in practical applications.

[0004] During operation, the pressure inside the mixing tank fluctuates with the mixing and the inflow and outflow of crude oil. External environmental factors such as temperature and humidity also affect the mixing tank. Existing sealing structures often struggle to adapt to these changes, resulting in poor sealing performance. In actual production, crude oil spillage frequently occurs, causing not only waste and increased production costs but also environmental pollution. Furthermore, crude oil spillage can disrupt normal equipment operation, shorten equipment lifespan, and lead to unnecessary economic losses for the company. Therefore, a crude oil mixing tank is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a crude oil mixing tank, which aims to improve the problems of waste and environmental pollution caused by crude oil overflow in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A crude oil mixing tank includes a mixing tank, a motor fixedly connected to the bottom of the mixing tank, a stirring paddle fixedly connected to the output end of the motor, a tank cover rotatably connected to the top of the mixing tank, a feed pipe fixedly connected to the top of the mixing tank, a discharge pipe fixedly connected to the side wall of the mixing tank, a filter screen provided on the side wall of the discharge pipe, a check valve assembly provided at the top of the feed pipe, and a disassembly assembly provided at one end of the discharge pipe.

[0008] The check valve assembly includes a rubber plug, which is disposed inside the top of the feed pipe. A housing is fixedly connected to the top of the feed pipe. A feed inlet is provided inside the housing. A limit post is fixedly connected to the side wall of the rubber plug. A spring is sleeved on the outer wall of the limit post. One end of the spring is fixedly connected to the inside of the housing, and the other end of the spring is fixedly connected to the other side of the rubber plug. The outer wall of the rubber plug is slidably connected to the inside of the feed inlet.

[0009] As a further description of the above technical solution:

[0010] The disassembly assembly includes a fixing post, the outer wall of which is slidably connected to the side wall of the filter screen.

[0011] As a further description of the above technical solution:

[0012] The discharge pipe has a shell on its side wall, and the shell is slidably connected to the fixed column and the outer wall. A limit ring is provided inside the shell.

[0013] As a further description of the above technical solution:

[0014] A second spring is fitted on the outer wall of the fixed column. One end of the second spring is fixedly connected to the inside of the outer shell, and the other end of the second spring is fixedly connected to the side wall of the limiting ring.

[0015] As a further description of the above technical solution:

[0016] The outer casing has a sliding groove inside, and the filter screen has positioning posts on its sidewall.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the positioning post is slidably connected to the inside of the slide groove, and a knob is fixedly connected to the other side of the fixing post.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the fixed column is slidably connected to the inside of the outer shell, and the side wall of the discharge pipe is disposed on one side of the filter screen.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, when crude oil flows normally from top to bottom, it causes the rubber stopper to move, which in turn causes the limiting post to move. Once the spring is compressed, the limiting post and the rubber stopper disengage from the feed inlet, allowing the crude oil to enter the mixing tank for mixing. This achieves a good sealing effect even under pressure fluctuations in the mixing tank or changes in the external environment, avoiding the problems of crude oil overflow causing waste and environmental pollution, and improving sealing performance.

[0023] In this invention, by rotating the knob, the outer shell is displaced, causing the positioning post to slide within the groove. Simultaneously, the spring retracts, causing the fixing post to detach from the filter screen, thus achieving a convenient filter screen removal. This solves the problem of traditional filter screen disassembly requiring complex tools and cumbersome steps, leading to difficult disassembly, and improves the maintainability of the equipment. Attached Figure Description

[0024] Figure 1 This is a perspective view of a crude oil mixing tank proposed in this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of a crude oil mixing tank proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the feed pipe of a crude oil mixing tank proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer shell of a crude oil mixing tank proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic cross-sectional view of the fixed column structure of a crude oil mixing tank proposed in this utility model.

[0030] Legend:

[0031] 1. Mixing tank; 2. Motor; 3. Agitator; 4. Tank lid; 5. Feed pipe; 6. Discharge pipe; 7. Shell; 8. Rubber stopper; 9. Limiting post; 10. Spring 1; 11. Filter screen; 12. Fixing post; 13. Outer shell; 14. Spring 2; 15. Positioning post; 16. Slide groove; 17. Knob; 18. Feed inlet; 19. Limiting ring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a crude oil mixing tank, comprising a mixing tank 1. A motor 2 is fixedly connected to the bottom of the mixing tank 1, and a stirring paddle 3 is fixedly connected to the output end of the motor 2. The motor 2, in conjunction with the stirring paddle 3, performs high-speed rotational motion, achieving the effect of fully mixing the crude oil and additives in the mixing tank 1. This allows the crude oil to come into uniform contact with various processing agents during the mixing process, improving the efficiency and quality of subsequent processing. A tank cover 4 is rotatably connected to the top of the mixing tank 1. The tank cover 4, in conjunction with the mixing tank 1, performs opening and closing motion, facilitating the inspection and cleaning of the interior of the mixing tank 1. Operators can easily open the tank cover 4 to inspect and maintain the components inside the mixing tank 1, ensuring... During normal operation of the equipment, the top of the mixing tank 1 is fixedly connected to the feed pipe 5, which serves as the channel for crude oil to enter the mixing tank 1 and guides the crude oil to flow in. The side wall of the mixing tank 1 is fixedly connected to the discharge pipe 6, which works with the mixing tank 1 to discharge the crude oil smoothly, so that the processed crude oil can be delivered to the next process in a timely manner. The side wall of the discharge pipe 6 is equipped with a filter screen 11, which works with the discharge pipe 6 to filter, thereby removing impurities from the crude oil and improving the purity of the crude oil, ensuring that the quality of the discharged crude oil meets the requirements of subsequent processing. The top of the feed pipe 5 is equipped with a check valve, and one end of the discharge pipe 6 is equipped with a disassembly assembly.

[0034] The check valve assembly includes a rubber plug 8, which is made of high-quality rubber material and has good elasticity and sealing performance. The rubber plug 8 is located inside the top of the feed pipe 5, and a housing 7 is fixedly connected to the top of the feed pipe 5. The housing 7 has a feed inlet 18 inside. A limit post 9 is fixedly connected to the side wall of the rubber plug 8. The limit post 9 is made of metal to ensure its strength and stability. A spring 10 is sleeved on the outer wall of the limit post 9. One end of the spring 10 is fixedly connected to the inside of the housing 7, and the other end of the spring 10 is fixedly connected to the other side of the rubber plug 8. The outer wall of the rubber plug 8 is slidably connected to the inside of the feed inlet 18. The rubber plug 8, in conjunction with the spring 10 and the limit post 9, performs telescopic and sliding movements to prevent crude oil backflow, effectively preventing crude oil backflow and ensuring the stability of the stirring process and the quality of crude oil processing.

[0035] Specifically, crude oil enters the mixing tank 1 through the feed pipe 5. Saturated steam is introduced into the heating coil through the steam inlet pipe, and then the motor 2 is started, driving the stirring paddle 3 to rotate, thus achieving the stirring and heating of the crude oil. Afterwards, it flows out through the discharge pipe 6 to the next process. During the working process of the crude oil mixing tank 1, during or after stirring, due to factors such as pressure changes, the crude oil is prone to backflow. Once backflow occurs, it leads to uneven stirring, affecting the smooth progress of crude oil processing. When the crude oil flows normally from top to bottom, its impact force will... The moving rubber stopper 8 is displaced, and the movement of the rubber stopper 8 will drive the limiting post 9 to move together, thereby compressing the spring 10. As the spring 10 is compressed, the limiting post 9 and the rubber stopper 8 are disengaged from the feed inlet 18, and the crude oil can smoothly enter the mixing tank 1 for mixing. Conversely, when the crude oil shows a backflow trend from bottom to top, the spring 10 will retract due to its own elasticity, driving the limiting post 9 to move in the opposite direction, and finally causing the rubber stopper 8 to block the feed inlet 18 again, effectively preventing the backflow of crude oil and ensuring the stability and efficiency of crude oil mixing and processing.

[0036] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6The disassembly assembly includes a fixing post 12, which slides in conjunction with the filter screen 11 to initially position the filter screen 11 and provide it with stable support, ensuring the filter screen 11 remains stable during normal operation and effectively intercepting impurities in the crude oil. The outer wall of the fixing post 12 is slidably connected to the side wall of the filter screen 11. A housing 13 is provided on the side wall of the discharge pipe 6, and the housing 13 is slidably connected to the outer wall of the fixing post 12. The housing 13 slides relative to the fixing post 12, protecting the fixing post 12 and the second spring 14 from external interference and damage, while providing stable guidance for the movement of the fixing post 12. A limiting ring 19 is provided inside the housing 13, and the second spring 14 is sleeved on the outer wall of the fixing post 12. One end of the second spring 14 is fixedly connected to the inside of the housing 13, and the other end of the second spring 14 is fixedly connected to the side wall of the limiting ring 19. Spring 14, in conjunction with the fixed post 12, performs telescopic movement, providing elastic assistance during the disassembly and installation of the filter screen 11. A sliding groove 16 is provided inside the outer casing 13. The shape and size of the sliding groove 16 are precisely designed to accommodate the sliding of the positioning post 15. The side wall of the filter screen 11 is provided with the positioning post 15, whose smooth outer wall allows for smooth sliding connection within the sliding groove 16. A knob 17 is fixedly connected to the other side of the fixed post 12, with anti-slip textured surfaces for easy gripping and rotation by the operator. The outer wall of the fixed post 12 is slidably connected inside the outer casing 13. The side wall of the discharge pipe 6 is located on one side of the filter screen 11. The knob 17, in conjunction with the fixed post 12, performs rotation and sliding movements, allowing the operator to easily control the displacement of the fixed post 12, thereby achieving the effect of quick disassembly and installation of the filter screen 11.

[0037] Specifically, during the continuous operation of the crude oil mixing tank 1, prolonged mixing will produce oil residue. This residue will gradually adhere to the filter screen 11, causing it to become clogged. Clogged filter screen 11 not only affects the normal filtration and flow of crude oil but also reduces mixing efficiency and processing quality. When clogged filter screen 11 is detected, the operator can rotate knob 17. Rotating knob 17 will cause the outer casing 13 to shift, and simultaneously, the outer casing 13 will cause the positioning pin 15 to slide inside the slide groove 16. During this process, spring 14 will retract due to external force. The further compression causes the fixed column 12 to move, disengaging it from the filter screen 11. This allows for easy disassembly of the filter screen 11. When the filter screen 11 is cleaned and needs to be reassembled, the knob 17 is turned again, causing the positioning column 15 to engage inside the slide groove 16. At this time, the spring 14 is compressed, causing the fixed column 12 to engage inside the filter screen 11, thus completing the assembly of the filter screen 11. This convenient disassembly and assembly method facilitates the inspection of the filter screen 11 for damage or blockage, enabling timely repair or replacement, ensuring the normal operation of the filter screen 11, and extending its service life.

[0038] Working principle: During or after the mixing process, crude oil may flow back due to pressure changes. When the crude oil flows from top to bottom, it will cause the rubber stopper 8 to move, which in turn will cause the limiting column 9 to move. This will cause the spring 10 to be compressed, disengaging it from the feed inlet 18, allowing the crude oil to enter the mixing tank 1 for mixing. When the crude oil flows from bottom to top, the spring 10 will retract due to its elasticity, which will then cause the limiting column 9 to move, thereby causing the rubber stopper 8 to move and block it inside the feed inlet 18. This prevents uneven mixing or other process problems caused by oil backflow, ensuring the smooth progress of the crude oil processing.

[0039] During prolonged stirring of crude oil, oil residue will be generated, causing the filter screen 11 to become clogged. At this time, rotating the knob 17 will cause the outer shell 13 to move, which in turn causes the positioning post 15 to slide inside the slide groove 16. At the same time, the second spring 14 will retract, which in turn causes the fixing post 12 to move and disengage from the filter screen 11, thus enabling the filter screen 11 to be disassembled. When cleaning is complete and it is to be reassembled, rotating the knob 17 again will cause the positioning post 15 to be locked inside the slide groove 16. At this time, the second spring 14 will be compressed, which will cause the fixing post 12 to be locked inside the filter screen 11, completing the assembly of the filter screen 11. This facilitates the inspection of whether the filter screen 11 is damaged or clogged, and timely repair or replacement can be carried out to ensure the normal operation of the filter screen 11 and extend its service life.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crude oil mixing tank, comprising a mixing tank (1), characterized in that: A motor (2) is fixedly connected to the bottom of the mixing tank (1), and a stirring paddle (3) is fixedly connected to the output end of the motor (2). A tank cover (4) is rotatably connected to the top of the mixing tank (1). A feed pipe (5) is fixedly connected to the top of the mixing tank (1). A discharge pipe (6) is fixedly connected to the side wall of the mixing tank (1). A filter screen (11) is provided on the side wall of the discharge pipe (6). A check valve assembly is provided at the top of the feed pipe (5). A disassembly assembly is provided at one end of the discharge pipe (6). The check valve assembly includes a rubber plug (8), which is disposed inside the top of the feed pipe (5). A housing (7) is fixedly connected to the top of the feed pipe (5). A feed inlet (18) is provided inside the housing (7). A limit post (9) is fixedly connected to the side wall of the rubber plug (8). A spring (10) is sleeved on the outer wall of the limit post (9). One end of the spring (10) is fixedly connected inside the housing (7), and the other end of the spring (10) is fixedly connected to the other side of the rubber plug (8). The outer wall of the rubber plug (8) is slidably connected inside the feed inlet (18).

2. The crude oil mixing tank according to claim 1, characterized in that: The disassembly assembly includes a fixing post (12), the outer wall of which is slidably connected to the side wall of the filter screen (11).

3. The crude oil mixing tank according to claim 2, characterized in that: The discharge pipe (6) has a shell (13) on its side wall. The shell (13) is slidably connected to the outer wall of the fixed column (12). A limiting ring (19) is provided inside the shell (13).

4. The crude oil mixing tank according to claim 3, characterized in that: The outer wall of the fixed column (12) is fitted with a spring (14), one end of the spring (14) is fixedly connected to the inside of the outer shell (13), and the other end of the spring (14) is fixedly connected to the side wall of the limiting ring (19).

5. The crude oil mixing tank according to claim 4, characterized in that: The outer shell (13) has a sliding groove (16) inside, and the filter screen (11) has a positioning post (15) on its side wall.

6. The crude oil mixing tank according to claim 5, characterized in that: The outer wall of the positioning post (15) is slidably connected to the inside of the slide groove (16), and a knob (17) is fixedly connected to the other side of the fixing post (12).

7. The crude oil mixing tank according to claim 6, characterized in that: The outer wall of the fixed column (12) is slidably connected to the inside of the outer shell (13), and the side wall of the discharge pipe (6) is arranged on one side of the filter screen (11).

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