Petroleum refining tail gas purification device

Abstract

The utility model discloses a petroleum refining tail gas purification device, and relates to the technical field of purification equipment, the petroleum refining tail gas purification device comprises an exhaust pipe and a purification box, one end of the purification box is provided with a first connecting pipe, and the first connecting pipe is connected with one end of the exhaust pipe through a clamping mechanism; a plurality of mounting frames are rotationally connected into the purification box, filter screens are mounted in the mounting frames, a cam is arranged on the rotating rod, and a driving assembly is mounted on the purification box and connected with the rotating rod; a second connecting pipe is arranged at the end, away from the first connecting pipe, of the purifying box, the other end of the second connecting pipe is connected with an exhaust fan, a gas detector is installed on the second connecting pipe, and a circulating pipe is connected between the first connecting pipe and the second connecting pipe; the cam can drive the filter screen to vibrate, particles and impurities on the filter screen are vibrated to fall off, the situation that the filter screen is blocked and influences the filtering effect of the filter screen is reduced, and the discharge amount of pollutants can be remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, specifically to a petroleum refining tail gas purification device. Background Technology

[0002] With increasing environmental awareness and increasingly stringent environmental regulations, the development trend of petroleum refining tail gas purification equipment will place greater emphasis on high efficiency, energy saving, environmental protection, and intelligence. During the petroleum refining process, large amounts of harmful substances such as sulfur oxides, nitrogen oxides, and hydrocarbons are generated. If these substances are directly released into the atmosphere, they will cause serious pollution to the environment and air. Therefore, tail gas purification equipment is needed to treat and purify these harmful substances.

[0003] In related technologies, the filter screens in purification devices filter and purify gases. However, over prolonged use, these screens gradually accumulate large amounts of particulate matter and impurities, leading to blockages. This blockage not only reduces filtration efficiency but may also affect the normal operation of the entire exhaust gas purification system. Furthermore, the direct emission of unpurified exhaust gases causes air pollution, which in turn affects human health, crop growth, and the balance of the ecosystem. Therefore, those skilled in the art have provided an oil refining exhaust gas purification device to address the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this invention is to provide a petroleum refining tail gas purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A petroleum refining tail gas purification device includes an exhaust pipe and a purification box. One end of the purification box is provided with a first connecting pipe, and the first connecting pipe and one end of the exhaust pipe are connected by a locking mechanism.

[0007] The purification box is rotatably connected to several mounting frames, and filters are installed in the mounting frames. Several support plates are fixedly installed in the purification box, and a first return spring is installed on the support plates. The other end of the first return spring is connected to the mounting frame. A rotating rod is rotatably connected in the purification box, and a cam is provided on the rotating rod. A drive assembly is installed in the purification box and connected to the rotating rod.

[0008] The purification box is provided with a second connecting pipe at the end away from the first connecting pipe. The other end of the second connecting pipe is connected to an exhaust fan. The other end of the exhaust fan is connected to an exhaust pipe. A gas detector is installed on the second connecting pipe. A circulation pipe is connected between the first connecting pipe and the second connecting pipe.

[0009] Preferably, a plurality of partitions are fixedly installed inside the purification box, and the plurality of partitions are in contact with one end of the mounting frame.

[0010] Preferably, a dust collection drawer is installed between the partitions, the dust collection drawer is installed by mounting bolts, and the dust collection drawer is provided with a sealing edge.

[0011] Preferably, a first electrically controlled valve is installed on the circulation pipe, and a second electrically controlled valve is installed on the discharge pipe.

[0012] Preferably, the engaging mechanism includes a connector, a connecting ring, an L-shaped block, and a second return spring. The connector is fixedly disposed at one end of the exhaust pipe, the connecting ring is disposed on the first connecting pipe, the connector has a connecting groove for connecting the connecting ring, the connecting ring has an installation groove for installing the second return spring, the other end of the second return spring is connected to the L-shaped block, and the connector has an engaging groove for engaging one end of the L-shaped block.

[0013] Preferably, one end of the connecting ring is provided with a sealing ring, and a sealing groove is provided on the exhaust pipe for the sealing ring to connect to. A sealing gasket is provided in the sealing groove, and the sealing gasket is in contact with the sealing ring.

[0014] Preferably, a mounting bracket is provided on one side of the purification box, and the exhaust fan is mounted on the mounting bracket.

[0015] Preferably, the drive assembly includes a drive motor, two first pulleys and two second pulleys. The two first pulleys are respectively connected to two of the rotating rods, one second pulley is connected to one of the first pulleys, and the other second pulley is connected to one of the rotating rods. The two first pulleys and the two second pulleys are all connected to each other by a drive belt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The present invention facilitates the connection between the purification box and the exhaust pipe through the setting of the locking mechanism, thereby improving the installation efficiency. Furthermore, through the setting of the drive component, the cam can be driven to rotate, thereby causing the filter screen to vibrate and shake off the particles and impurities on the filter screen, reducing the clogging of the filter screen and affecting its filtration effect.

[0018] 2. This utility model, through the setting of a gas detector, can detect the gas to be discharged. When the gas does not meet the standard, it can re-enter the purification box through the circulation pipe for purification, which can improve the gas purification effect and significantly reduce the amount of pollutants emitted. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the main structure of a petroleum refining tail gas purification device according to an embodiment of this application;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of a petroleum refining tail gas purification device according to an embodiment of this application;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0023] Figure 5 This is a rear view schematic diagram of a petroleum refining tail gas purification device according to an embodiment of this application.

[0024] In the diagram: 1. Exhaust pipe; 2. Purification box; 3. First connecting pipe; 4. Mounting frame; 5. Filter screen; 6. Support plate; 7. First return spring; 8. Rotating rod; 9. Cam; 10. Second connecting pipe; 11. Exhaust fan; 12. Discharge pipe; 13. Gas detector; 14. Circulation pipe; 15. Partition plate; 16. Dust collection drawer; 17. Mounting bolt; 18. Sealing edge; 19. First electric control valve; 20. Connecting piece; 21. Connecting ring; 22. Second electric control valve; 23. L-shaped block; 24. Second return spring; 25. Connecting groove; 26. Mounting groove; 27. Engaging groove; 28. Sealing ring; 29. ​​Sealing groove; 30. Sealing gasket; 31. Mounting bracket; 32. Drive motor; 33. First pulley; 34. Second pulley; 35. Transmission belt. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution:

[0027] A petroleum refining tail gas purification device includes an exhaust pipe 1 and a purification box 2. One end of the purification box 2 is provided with a first connecting pipe 3. The first connecting pipe 3 and one end of the exhaust pipe 1 are connected by a locking mechanism. The locking mechanism includes a connector 20, a connecting ring 21, an L-shaped block 23, and a second return spring 24. The connector 20 is fixedly disposed at one end of the exhaust pipe 1. The connecting ring 21 is disposed on the first connecting pipe 3. The connector 20 has a connecting groove 25 for connecting the connecting ring 21. The connecting ring 21 has an installation groove 26 for installing the second return spring 24. The other end of the second return spring 24 is connected to the L-shaped block 23. The connector 20 has a locking groove 27 for locking one end of the L-shaped block 23.

[0028] Furthermore, a sealing ring 28 is provided at one end of the connecting ring 21, and a sealing groove 29 is provided on the exhaust pipe 1 for the sealing ring 28 to connect. A sealing gasket 30 is provided in the sealing groove 29, and the sealing gasket 30 is in contact with the sealing ring 28. The sealing gasket 30 can improve the sealing performance of the connection between the sealing ring 28 and the exhaust pipe 1.

[0029] When connecting the first connecting pipe 3 and the exhaust pipe 1, press the L-shaped block 23, the connecting ring 21 is connected in the connecting groove 25, and connected in the sealing groove 29 through the sealing ring 28. The connecting ring 21 is in contact with the sealing gasket 30. Then release the L-shaped block 23, the second return spring 24 releases elastic potential energy, which can push the L-shaped block 23 to move. One end of the L-shaped block 23 is engaged in the engaging groove 27 on the connector 20, which can connect the connector 20 and the connecting ring 21, and quickly improve the connection efficiency between the connector 20 and the connecting ring 21.

[0030] When separating the connecting ring 21 from the exhaust pipe 1, press the L-shaped block 23. The L-shaped block 23 will move out of the engaging groove 27. Then, the connecting ring 21 can be removed from the connecting groove 25.

[0031] The purification box 2 is rotatably connected to several mounting frames 4, and a filter screen 5 is installed in the mounting frames 4. Several partitions 15 are fixedly installed in the purification box 2, and the partitions 15 are in contact with one end of the mounting frames 4. Several support plates 6 are fixedly installed in the purification box 2, and a first return spring 7 is installed on the support plates 6. The other end of the first return spring 7 is connected to the mounting frame 4. A rotating rod 8 is rotatably connected in the purification box 2, and a cam 9 is provided on the rotating rod 8. A drive assembly is installed in the purification box 2 and connected to the rotating rod 8.

[0032] Specifically, the drive assembly includes a drive motor 32, two first pulleys 33 and two second pulleys 34. The two first pulleys 33 are respectively connected to two of the rotating rods 8, one second pulley 34 is connected to one of the first pulleys 33, and the other second pulley 34 is connected to one of the rotating rods 8. The two first pulleys 33 and the two second pulleys 34 are all connected by a drive belt 35.

[0033] When removing particles and impurities attached to the filter screen 5, the output end of the drive motor 32 is connected to one of the first pulleys 33 and the second pulley 34. One of the first pulleys 33 and the second pulley 34 drives the other first pulley 33 and the second pulley 34 to rotate through the transmission belt 35. The first pulley 33 and the second pulley 34 can drive the rotating rod 8 to rotate. The rotating rod 8 drives the cam 9 to rotate. Since one end of the mounting frame 4 is rotatably connected to the purification box 2, when the protruding end of the cam 9 contacts one end of the mounting frame 4, it can push one end of the mounting frame 4 to move. When the protruding end of the cam 9 moves away from the mounting frame 4, the first return spring 7 pulls one end of the mounting frame 4 back. One end of the mounting frame 4 impacts the partition plate 15, which can cause the mounting frame 4 to vibrate, causing the particles and impurities on the filter screen 5 to fall off, reducing the clogging of the filter screen 5 and affecting the filtration effect of the filter screen 5.

[0034] Dust collection drawers 16 are installed between the partitions 15. The dust collection drawers 16 are installed by mounting bolts 17 and have a sealing edge 18. The dust collection drawers 16 can collect the dust that is shaken off. When cleaning the collected dust, the mounting bolts 17 can be removed and then the dust collection drawers 16 can be taken out. The sealing edge 18 can improve the connection and sealing between the integrated drawer and the purification box 2.

[0035] The purification box 2 is provided with a second connecting pipe 10 at the end away from the first connecting pipe 3. The other end of the second connecting pipe 10 is connected to an exhaust fan 11. The other end of the exhaust fan 11 is connected to an exhaust pipe 12. A gas detector 13 is installed on the second connecting pipe 10. A circulation pipe 14 is connected between the first connecting pipe 3 and the second connecting pipe 10.

[0036] Furthermore, a first electrically controlled valve 19 is installed on the circulation pipe 14, a second electrically controlled valve 22 is installed on the discharge pipe 12, and a mounting bracket 31 is provided on one side of the purification box 2, with the exhaust fan 11 mounted on the mounting bracket 31.

[0037] The fan draws the purified gas from the purification box 2 into the second connecting pipe 10. When the gas detector 13 detects that the gas meets the emission standard, the second electric control valve 22 on the discharge pipe 12 opens and the gas is discharged through the discharge pipe 12.

[0038] When the gas does not meet the emission standards, the first electrically controlled valve 19 on the second connecting pipe 10 opens, and the gas enters the first connecting pipe 3 through the circulation pipe 14, so that the gas is purified again through the purification box 2, which can improve the gas purification effect and significantly reduce the amount of pollutants emitted.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A petroleum refining tail gas purification device, comprising an exhaust pipe (1) and a purification chamber (2), characterized in that: The purification box (2) is provided with a first connecting pipe (3) at one end, and the first connecting pipe (3) and one end of the exhaust pipe (1) are connected by a locking mechanism; The purification box (2) is rotatably connected to several mounting frames (4), and a filter screen (5) is installed in each of the mounting frames (4). Several support plates (6) are fixedly installed in the purification box (2), and a first return spring (7) is installed on each of the support plates (6). The other end of the first return spring (7) is connected to the mounting frame (4). A rotating rod (8) is rotatably connected in the purification box (2), and a cam (9) is provided on the rotating rod (8). A drive assembly is installed in the purification box (2) and connected to the rotating rod (8). The purification box (2) is provided with a second connecting pipe (10) at the end away from the first connecting pipe (3). The other end of the second connecting pipe (10) is connected to an exhaust fan (11). The other end of the exhaust fan (11) is connected to an exhaust pipe (12). A gas detector (13) is installed on the second connecting pipe (10). A circulation pipe (14) is connected between the first connecting pipe (3) and the second connecting pipe (10).

2. The petroleum refining tail gas purification device according to claim 1, characterized in that: The purification box (2) is fixedly installed with several partitions (15), and the partitions (15) are in contact with one end of the mounting frame (4).

3. The petroleum refining tail gas purification device according to claim 2, characterized in that: A dust collection drawer (16) is installed between the partitions (15). The dust collection drawer (16) is installed by mounting bolts (17), and the dust collection drawer (16) is provided with a sealing edge (18).

4. The petroleum refining tail gas purification device according to claim 1, characterized in that: A first electrically controlled valve (19) is installed on the circulation pipe (14), and a second electrically controlled valve (22) is installed on the discharge pipe (12).

5. The petroleum refining tail gas purification device according to claim 1, characterized in that: The engaging mechanism includes a connector (20), a connecting ring (21), an L-shaped block (23), and a second return spring (24). The connector (20) is fixedly disposed at one end of the exhaust pipe (1), and the connecting ring (21) is disposed on the first connecting pipe (3). The connector (20) has a connecting groove (25) for connecting the connecting ring (21), and the connecting ring (21) has an installation groove (26) for installing the second return spring (24). The other end of the second return spring (24) is connected to the L-shaped block (23), and the connector (20) has an engaging groove (27) for engaging one end of the L-shaped block (23).

6. The petroleum refining tail gas purification device according to claim 5, characterized in that: One end of the connecting ring (21) is provided with a sealing ring (28), and the exhaust pipe (1) is provided with a sealing groove (29) for the sealing ring (28) to connect. A sealing gasket (30) is provided in the sealing groove (29), and the sealing gasket (30) is in contact with the sealing ring (28).

7. The petroleum refining tail gas purification device according to claim 1, characterized in that: The purification box (2) is provided with a mounting bracket (31) on one side, and the exhaust fan (11) is mounted on the mounting bracket (31).

8. The petroleum refining tail gas purification device according to claim 1, characterized in that: The drive assembly includes a drive motor (32), two first pulleys (33) and two second pulleys (34). The two first pulleys (33) are respectively connected to two of the rotating rods (8), one second pulley (34) is connected to one of the first pulleys (33), and the other second pulley (34) is connected to one of the rotating rods (8). The two first pulleys (33) and the two second pulleys (34) are all connected by a drive belt (35).

Images