Desulfurization equipment for gasoline processing

Abstract

The invention discloses desulfurization equipment for gasoline processing, which comprises a desulfurization tower, a first feeding pipe, a second feeding pipe and a collecting tank, the top of the desulfurization tower is communicated with the first feeding pipe and the second feeding pipe, the bottom of the desulfurization tower is conical, the bottom of the desulfurization tower is connected with a spiral pipe, the bottom of the spiral pipe is connected with the collecting tank, and the collecting tank is connected with the bottom of the spiral pipe. The bottom of the collecting tank is conical and connected with a first discharging pipe, the side face of the collecting tank is connected with a second discharging pipe, a filter screen is arranged in the collecting tank, and the second discharging pipe is separated from the first discharging pipe and the spiral pipe through the filter screen. According to the desulfurization equipment for gasoline processing, mixing of a desulfurizer and gasoline is promoted through gravity, stirring of a motor is not needed, safety is improved, and efficient desulfurization is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of gasoline processing, in particular to a desulfurization device for gasoline processing. Background Art

[0002] In the field of gasoline processing, desulfurization is a crucial link, which aims to reduce the sulfur content in gasoline to meet increasingly stringent environmental standards and fuel quality requirements. The desulfurization equipment in the prior art mostly relies on motor-driven stirring components to ensure the full mixing of desulfurizer and gasoline, such as the invention patent with announcement number CN218620714U: A deep desulfurization device for gasoline production. However, the motor-driven stirring components will generate friction heat during operation, which may cause safety hazards in the desulfurization process of gasoline. Summary of the invention

[0003] In view of the above-mentioned prior art, the present invention provides a desulfurization device for gasoline processing, which utilizes gravity to promote the mixing of desulfurizer and gasoline, does not require motor stirring, improves safety, and ensures efficient desulfurization.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] A desulfurization device for gasoline processing comprises a desulfurization tower, a first feed pipe, a second feed pipe and a collecting tank, wherein the top of the desulfurization tower is connected to the first feed pipe and the second feed pipe, the bottom of the desulfurization tower is conical, the bottom of the desulfurization tower is connected to a spiral pipe, the bottom of the spiral pipe is connected to a collecting tank, the bottom of the collecting tank is conical and is connected to a first discharge pipe, the side of the collecting tank is connected to a second discharge pipe, a filter screen is provided in the collecting tank, and the filter screen separates the second discharge pipe from the first discharge pipe and the spiral pipe.

[0006] Furthermore, a plurality of guide plates are provided in the spiral tube, each of which is in a twisted arc shape, with the concave surface of the upper end of the guide plate facing upward and connected to the bottom of the spiral tube, and the concave surface of the lower end of the guide plate facing the axis of the spiral tube and located in the middle part of the spiral tube.

[0007] Furthermore, the number of the spiral tube is at least one.

[0008] Furthermore, the guide plate includes a first elastic part, a second elastic part and a third elastic part connected in series in sequence, the elastic coefficient of the first elastic part is greater than the elastic coefficient of the second elastic part, the elastic coefficient of the second elastic part is equal to the elastic coefficient of the third elastic part, and the first elastic part is connected to the spiral tube.

[0009] Furthermore, the spiral tube is connected to an inverted Y-shaped tube, the upper end of the inverted Y-shaped tube is connected to the spiral rod, the left side of the lower end is connected to the intercepting tube, and the right side of the lower end is connected to the collecting tank. The upper end of the intercepting tube is an inverted U-shape, and the intercepting tube is connected to the buffer tank. The side of the buffer tank is connected to the bypass pipe and the upper part of the spiral tube, and the upper part of the buffer tank is connected to the upper end of the desulfurization tower through a balancing pipe.

[0010] Furthermore, the inner diameter of the bypass pipe is smaller than the inner diameter of the intercepting pipe, and the inner diameter of the intercepting pipe is the same as the inner diameter of the spiral pipe.

[0011] Furthermore, the angle between the upper end and the left side of the lower end of the inverted Y-shaped tube is 120° to 170°.

[0012] Furthermore, the inner diameter of the bypass pipe is 0.05 to 0.5 times the inner diameter of the intercepting pipe.

[0013] The beneficial effect of the present invention is that the desulfurization process is ensured to be carried out efficiently by mixing the desulfurizer and gasoline in the desulfurization tower and further fully mixing the gasoline and desulfurizer in the spiral tube. The present invention does not need to use stirring parts such as motors to mix the desulfurizer and gasoline, and the power of mixing is completely derived from the gravity of the oil. This avoids the potential safety hazards caused by friction heat generated by the operation of the motor and improves the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a gasoline processing desulfurization device in Example 1 of the present application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the spiral tube in Example 1 of the present application;

[0016] Figure 3 This is a schematic structural diagram of a gasoline processing desulfurization device in Example 2 of the present application;

[0017] Description of Figure Numbers:

[0018] 1. Desulfurization tower; 2. First feed pipe; 3. Second feed pipe; 5. Spiral tube; 6. Collecting tank; 7. First discharge pipe; 8. Second discharge pipe; 9. Filter screen; 10. Guide vane; 101. First elastic part; 102. Second elastic part; 103. Third elastic part; 11. Inverted Y-shaped tube; 12. Intercepting tube; 13. Buffer tank; 14. Bypass pipe; 15. Balance pipe. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0021] Example 1

[0022] Please refer to the attached Figure 1 The present application provides a desulfurization device for gasoline processing, comprising a desulfurization tower 1, a first feed pipe 2, a second feed pipe 3 and a collection tank 6. The top of the desulfurization tower 1 is connected to the first feed pipe 2 and the second feed pipe 3. The bottom of the desulfurization tower 1 is conical. A spiral pipe 5 is connected to the bottom of the desulfurization tower 1. The bottom of the spiral pipe 5 is connected to the collection tank 6. The bottom of the collection tank 6 is conical and connected to a first discharge pipe 7. The side of the collection tank 6 is connected to a second discharge pipe 8. A filter screen 9 is provided in the collection tank 6. The filter screen 9 separates the second discharge pipe from the first discharge pipe 7 and the spiral pipe 5. The gasoline to be desulfurized enters the desulfurization tower 1 from the first feed pipe 2, and the desulfurizer enters the desulfurization tower 1 from the second feed pipe 3. The desulfurizer and the gasoline are mixed in the desulfurization tower 1. Since the bottom of the desulfurization tower 1 is connected to the spiral pipe 5, the gasoline and the desulfurizer at the bottom of the desulfurization tower 1 enter the spiral pipe 5 and finally flow downward along the spiral pipe 5. During the flow, the desulfurizer and gasoline are fully mixed. The power of the mixture comes from the gravity of the oil, and no stirring parts such as motors are required, thereby avoiding safety hazards caused by friction heat, etc. The desulfurizer is used to desulfurize the gasoline. The desulfurized gasoline and the degranulating agent enter the collection tank 6 below. The particulate impurities in the gasoline are filtered out by the filter 9. The filtered impurities enter the bottom of the collection tank 6 and are finally discharged from the first discharge pipe 7. The filtered gasoline is discharged through the second discharge pipe 8.

[0023] Optionally, a plurality of guide plates 10 are provided in the spiral tube 5, and the guide plates 10 are twisted arc-shaped, the concave surface of the upper end of the guide plates 10 faces upward and is connected to the bottom of the spiral tube 5, and the concave surface of the lower end of the guide plates 10 faces the axis of the spiral tube 5 and is located in the middle of the spiral tube 5. The desulfurizer moving along the spiral tube 5 is guided by the guide plates 10, so that the guide agent located at the bottom of the spiral tube 5 moves and flips to the middle of the spiral tube 5, thereby increasing the contact surface between the desulfurizer and gasoline and promoting the desulfurization of gasoline.

[0024] Specifically, the number of the spiral tube 5 is at least one. Only one spiral tube 5 may be provided, or multiple spiral tubes 5 may be provided. Multiple spiral tubes 5 may improve the desulfurization efficiency.

[0025] Optionally, the guide plate 10 includes a first elastic part 101, a second elastic part 102 and a third elastic part 103 connected in series in sequence, the elastic coefficient of the first elastic part 101 is greater than the elastic coefficient of the second elastic part 102, the elastic coefficient of the second elastic part 102 is equal to the elastic coefficient of the third elastic part 103, and the first elastic part 101 is connected to the spiral tube 5. When gasoline passes through the guide plate 10, the guide plate 10 changes the direction of gasoline flow, promoting full contact between gasoline and threshing agent. At the same time, the guide plate 10 will cause its own vibration during diversion, causing gasoline and threshing agent to be disturbed at the position of the guide plate 10, allowing gasoline in different flow layers to move, and promoting full mixing of gasoline and threshing agent. The elastic coefficient of the guide plate 10 gradually decreases from the position in contact with the spiral tube 5 to the outside, which can cause the guide plate 10 at the end to vibrate more significantly, promoting the mixing of gasoline and threshing agent.

[0026] Example 2

[0027] Please refer to the attached Figure 1The difference between this embodiment and embodiment 1 is that the spiral tube 5 is connected with an inverted Y-shaped tube 11, the upper end of the inverted Y-shaped tube 11 is connected to the spiral rod, the left side of the lower end is connected to the intercepting tube 12, and the right side of the lower end is connected to the collecting tank 6. The upper end of the intercepting tube 12 is an inverted U-shape, and the intercepting tube 12 is connected to the buffer tank 13. The side of the buffer tank is connected to the upper part of the spiral tube 5 through the bypass pipe 14, and the upper part of the buffer tank is connected to the upper end of the desulfurization tower 1 through the balance pipe 15. When desulfurization is performed, most of the gasoline flows downward from the spiral tube 5, and a small part of the gasoline enters the buffer tank from the bypass pipe 14. The balance pipe 15 connects the buffer tank with the upper part of the desulfurization tower 1, thereby balancing the air pressure inside the desulfurization station and the buffer tank. When the liquid level in the buffer tank is greater than the top of the intercepting tube 12, the gasoline in the buffer tube flows out from the intercepting tube 12, and the gasoline in the intercepting tube 12 flows downward to the left side of the lower end of the Y-shaped tube and collides with the gasoline at the upper end, thereby preventing the gasoline from flowing downward from the spiral tube 5. The flow of gasoline is temporarily obstructed, and the desulfurizer in the spiral tube 5 continues to move, which can allow the gasoline to be more fully mixed with the desulfurizer during the flow in the spiral tube 5, and can also allow the desulfurizer stuck in the spiral tube 5 to move downward along the spiral tube 5.

[0028] Specifically, the inner diameter of the bypass pipe 14 is smaller than the inner diameter of the intercepting pipe 12, and the inner diameter of the intercepting pipe 12 is the same as the inner diameter of the spiral pipe 5. Gasoline can slowly enter the buffer tank, and the bypass pipe 14 with a suitable inner diameter is rotated according to the frequency of intercepting the airflow in the spiral pipe 5 as needed. The gasoline flow in the intercepting pipe 12 is large, which can form a hedge with the gasoline flowing out of the spiral pipe 5.

[0029] Specifically, the angle between the upper end and the left side of the lower end of the inverted Y-shaped tube 11 is 120° to 170°, so that the gasoline flow directions on the left side of the upper end and the lower end of the inverted Y-shaped tube 11 are nearly opposite, effectively hindering the gasoline flow.

[0030] Specifically, the inner diameter of the bypass pipe 14 is 0.05 to 0.5 times the inner diameter of the intercepting pipe 12. The inner diameter of the bypass pipe 14 is selected according to the frequency of interception required. Optionally, the intercepting pipe 12 is spiral, and a guide plate 10 is arranged in the intercepting pipe 12, so that the intercepting pipe 12 has the function of the spiral pipe 5.

[0031] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A desulfurization equipment for gasoline processing, characterized in that: It includes a desulfurization tower, a first feed pipe, a second feed pipe and a collecting tank. The top of the desulfurization tower is connected to the first feed pipe and the second feed pipe. The bottom of the desulfurization tower is conical. The bottom of the desulfurization tower is connected to a spiral pipe. The bottom of the spiral pipe is connected to a collecting tank. The bottom of the collecting tank is conical and connected to a first discharge pipe. The side of the collecting tank is connected to a second discharge pipe. A filter is provided in the collecting tank. The filter separates the second discharge pipe from the first discharge pipe and the spiral pipe.

2. A gasoline processing desulfurization equipment according to claim 1, characterized in that: A plurality of guide plates are arranged in the spiral tube. The guide plates are twisted arc-shaped. The concave surface of the upper end of the guide plate faces upward and is connected to the bottom of the spiral tube. The concave surface of the lower end of the guide plate faces the axis of the spiral tube and is located in the middle part of the spiral tube.

3. A gasoline processing desulfurization equipment according to claim 1, characterized in that: The number of the spiral tube is at least one.

4. A gasoline processing desulfurization equipment according to claim 2, characterized in that: The guide plate includes a first elastic part, a second elastic part and a third elastic part connected in series in sequence, the elastic coefficient of the first elastic part is greater than the elastic coefficient of the second elastic part, the elastic coefficient of the second elastic part is the same as the elastic coefficient of the third elastic part, and the first elastic part is connected to the spiral tube.

5. A gasoline processing desulfurization equipment according to claim 1, characterized in that: The spiral tube is connected with an inverted Y-shaped tube, the upper end of the inverted Y-shaped tube is connected with the spiral rod, the left side of the lower end is connected with the intercepting tube, and the right side of the lower end is connected with the collecting tank. The upper end of the intercepting tube is an inverted U-shape, and the intercepting tube is connected with the buffer tank. The side of the buffer tank is connected with the bypass pipe and the upper part of the spiral tube, and the upper part of the buffer tank is connected with the upper end of the desulfurization tower through a balancing pipe.

6. A gasoline processing desulfurization equipment according to claim 5, characterized in that: The inner diameter of the bypass pipe is smaller than the inner diameter of the intercepting pipe, and the inner diameter of the intercepting pipe is the same as the inner diameter of the spiral pipe.

7. A gasoline processing desulfurization equipment according to claim 5, characterized in that: The included angle between the upper end and the left side of the lower end of the inverted Y-shaped tube is 120° to 170°.

8. A gasoline processing desulfurization equipment according to claim 5, characterized in that: The inner diameter of the bypass pipe is 0.05 to 0.5 times the inner diameter of the intercepting pipe.

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