Hydrogenation waste gas waste heat recovery device

Abstract

The utility model provides a hydrogenation waste gas waste heat recovery device, which relates to the technical field of waste heat recovery and comprises a bottom plate, supporting legs are mounted at the top end of the bottom plate, a heat storage incinerator is mounted at the top ends of the supporting legs, a smoke exhaust pipe is mounted at one end of the heat storage incinerator, and a filter cavity is mounted on the other side of the top end of a mounting frame. The other end of the gas conveying pipe is communicated with one end of a filtering cavity, a filtering mechanism is arranged in the filtering cavity, and a connecting mechanism is arranged at one end of the filtering cavity; according to the air blower, the filtering mechanism is arranged in the filtering cavity, and a filtering plate, a sealing plate, a fixing base, a mounting groove, a mounting block, a positioning hole, a mounting cavity, a positioning pin and a telescopic spring of the filtering mechanism are matched with one another, so that some garbage particles in waste gas can be filtered, and the air blower is not prone to damage during use; and the combustion effect of the gas is better, so that the practicability of the device in use is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery device for hydrogenation waste gas. Background Art

[0002] Crude benzene catalytic hydrogenation is a method of gas-phase catalytic hydrogenation, which converts impurities such as olefins, sulfides, and nitrides in crude benzene into corresponding saturated hydrocarbons, hydrogen sulfide, ammonia and other gases to remove these impurities. This process is carried out under certain temperature, pressure and the action of a catalyst, and saturated benzene ring compounds are formed through an addition reaction, while removing impurities and improving the purity of benzene;

[0003] The treated hydrogenation process waste gas enters the incinerator for incineration. In view of the high calorific value of the hydrogenation waste gas, a waste heat boiler is added to generate steam from the heat of the high-temperature flue gas and recycle it to the production device, thereby saving steam consumption and achieving energy conservation and consumption reduction. When the existing hydrogenation waste gas enters the incinerator, a blower is used to pump it. During use, since it is inconvenient to filter the waste gas, the particulate matter in the waste gas is likely to damage the blower when passing through the blower, thereby reducing the practicability of the device during use. Therefore, the utility model proposes a waste heat recovery device for hydrogenation waste gas to solve the above problems. Summary of the Invention

[0004] In view of the above problems, the utility model proposes a waste heat recovery device for hydrogenation waste gas to solve the problem that in the prior art, it is inconvenient to filter the waste gas, so that the particulate matter in the waste gas is likely to damage the blower when passing through the blower, thereby reducing the practicability of the device during use.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A waste heat recovery device for hydrogenation waste gas, including a bottom plate, a support leg is installed at the top end of the bottom plate, a regenerative incinerator is installed at the top end of the support leg, a smoke exhaust pipe is installed at one end of the regenerative incinerator, an air inlet is installed at the other end of the regenerative incinerator, an installation frame is installed on the other side of the top end of the bottom plate, a blower is installed on one side of the top end of the installation frame, air delivery pipes are installed at both ends of the blower, one end of the air delivery pipe is communicated with one end of the air inlet, a filtering chamber is installed on the other side of the top end of the installation frame, the other end of the air delivery pipe is communicated with one end of the filtering chamber, a filtering mechanism is arranged inside the filtering chamber, and a connecting mechanism is arranged at one end of the filtering chamber;

[0006] The filtering mechanism includes a filter plate, a sealing plate and a disassembly and assembly structure. The filter plate is installed inside the filtering chamber, and a sealing plate is installed at one end of the filter plate.

[0007] A further improvement lies in that: the disassembly and assembly structure includes a fixed seat, an installation groove, an installation block, a positioning hole, an installation cavity, a positioning pin and a telescopic spring. The fixed seat is installed above and below the front end of the filter cavity. An installation groove is formed inside the fixed seat. An installation block is arranged inside the installation groove. One end of the installation block is respectively connected to one end of the sealing plate. A positioning hole penetrates through the installation block. An installation cavity is installed on one side of the fixed seat. A positioning pin penetrates through the installation cavity. One end of the positioning pin extends into the positioning hole. A telescopic spring is arranged on the outer side wall of the positioning pin. The telescopic spring is installed inside the installation cavity.

[0008] A further improvement lies in that: the outer diameter of the positioning pin is smaller than the inner diameter of the positioning hole, and a clamping structure is formed between the positioning hole and the positioning pin.

[0009] A further improvement lies in that: two filter plates are arranged inside the filter cavity, and the two filter plates are symmetrically distributed about the central axis of the filter cavity.

[0010] A further improvement lies in that: the connection mechanism includes a connection seat, a connection pipe, a limiting plate and a rotating sleeve. The connection seat is installed at one end of the filter cavity. A connection pipe is installed inside the connection seat. A limiting plate is arranged on the outer side wall of the connection pipe. A rotating sleeve is arranged on the outer side wall of the limiting plate. External threads are arranged on the outer wall of the connection seat. Internal threads are arranged on the inner wall of the rotating sleeve. A threaded connection is formed between the connection seat and the rotating sleeve.

[0011] A further improvement lies in that: a sealing gasket is arranged at the bottom end inside the connection seat, and the connection seat and the connection pipe are hermetically connected through the sealing gasket.

[0012] The beneficial effects of the present utility model are as follows: by arranging a filtering mechanism inside the filter cavity and utilizing the mutual cooperation among the filter plate, the sealing plate, the fixed seat, the installation groove, the installation block, the positioning hole, the installation cavity, the positioning pin and the telescopic spring of the filtering mechanism, some garbage particles in the waste gas can be filtered, so that the blower is not easily damaged during use, and the combustion effect of the gas is also better, thereby greatly improving the practicability of the device during use; by arranging a connection mechanism at one end of the filter cavity and utilizing the mutual cooperation among the connection seat, the connection pipe, the limiting plate and the rotating sleeve of the connection mechanism, the connection of the connection pipe and the filter cavity is more convenient and rapid, thereby greatly improving the convenience of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the overall structural schematic diagram of the filtering mechanism of the present utility model;

[0015] Figure 3 It is a cross-sectional structural diagram of the connection mechanism of the utility model;

[0016] Figure 4 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0017] Among them: 1. Base plate; 2. Support legs; 3. Regenerative heat incinerator; 4. Smoke exhaust pipe; 5. Air inlet; 6. Mounting frame; 7. Blower; 8. Gas pipe; 9. Filter chamber; 10. Filter plate; 11. Sealing plate; 12. Fixed seat; 13. Mounting groove; 14. Mounting block; 15. Positioning hole; 16. Mounting chamber; 17. Positioning pin; 18. Telescopic spring; 19. Connecting seat; 20. Connecting pipe; 21. Limiting plate; 22. Rotating sleeve. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , 2 , 3, and 4, this embodiment proposes a waste heat recovery device for hydrogenation waste gas, including a bottom plate 1, a support leg 2 is installed on the top of the bottom plate 1, a regenerative incinerator 3 is installed on the top of the support leg 2, a smoke exhaust pipe 4 is installed at one end of the regenerative incinerator 3, an air inlet 5 is installed at the other end of the regenerative incinerator 3, a mounting frame 6 is installed on the other side of the top of the bottom plate 1, a blower 7 is installed on one side of the top of the mounting frame 6, and gas pipes 8 are installed at both ends of the blower 7, and the gas pipes 8 are One end is connected with one end of the air inlet 5, and a filter chamber 9 is installed on the other side of the top of the mounting frame 6. The other end of the gas pipe 8 is connected with one end of the filter chamber 9. A filtering mechanism is arranged inside the filter chamber 9, and a connecting mechanism is arranged at one end of the filter chamber 9. When in use, a wastewater spray gun is designed on the heat storage incinerator 3 to be incinerated with the waste gas in the same furnace, so as to thoroughly deal with the industry problem of hydrogenation wastewater. At the same time, SCR denitrification and wet desulfurization (which is the existing technology, not shown in the figure) are used to ensure that the flue gas meets the emission standards.

[0020] The filtering mechanism includes a filter plate 10, a sealing plate 11 and a disassembly and assembly structure. The filter plate 10 is installed inside the filter chamber 9. One end of the filter plate 10 is installed with a sealing plate 11. The disassembly and assembly structure includes a fixed seat 12, an installation groove 13, an installation block 14, a positioning hole 15, an installation cavity 16, a positioning pin 17 and a telescopic spring 18. The fixed seat 12 is installed above and below the front end of the filter chamber 9. An installation groove 13 is formed inside the fixed seat 12. An installation block 14 is arranged inside the installation groove 13. One end of the installation block 14 is respectively connected to one end of the sealing plate 11. A positioning hole 15 penetrates through the installation block 14. An installation cavity 16 is installed on one side of the fixed seat 12. A positioning pin 17 penetrates through the installation cavity 16. One end of the positioning pin 17 extends into the positioning hole 15. A telescopic spring 18 is arranged on the outer side wall of the positioning pin 17. The telescopic spring 18 is installed inside the installation cavity 16. The outer diameter of the positioning pin 17 is smaller than the inner diameter of the positioning hole 15. A clamping structure is formed between the positioning hole 15 and the positioning pin 17. Two filter plates 10 are arranged inside the filter chamber 9. The two filter plates 10 are symmetrically distributed about the central axis of the filter chamber 9. During use, the filter plate 10 can be used to filter the waste gas. When in use for a long time and the filter plate 10 needs to be cleaned, pull the positioning pin 17 to make the positioning pin 17 disengage from the positioning hole 15, and then pull out the installation block 14 from the inside of the fixed seat 12. At this time, the filter plate 10 can be taken out from the inside of the filter chamber 9 to clean the filter plate 10. After cleaning, pull the positioning pin 17, and then put the filter chamber 9 into the inside of the filter chamber 9. At this time, the installation block 14 slides into the inside of the installation groove 13, and then release the positioning pin 17. The telescopic spring 18 is under the action of elastic force, driving the positioning pin 17 to extend, so that the positioning pin 17 is engaged with the positioning hole 15 to complete the installation of the filter plate 10 and the sealing plate 11. Some garbage particles in the waste gas can be filtered, so that the blower 7 is not easily damaged during use, and the combustion effect of the gas is better, thus greatly improving the practicability of the device during use.

[0021] The connecting mechanism includes a connecting seat 19, a connecting pipe 20, a limiting plate 21 and a rotating sleeve 22. The connecting seat 19 is installed at one end of the filtering chamber 9. The connecting pipe 20 is installed inside the connecting seat 19. The outer side wall of the connecting pipe 20 is provided with the limiting plate 21, and the outer side wall of the limiting plate 21 is provided with the rotating sleeve 22. The outer wall of the connecting seat 19 is provided with an external thread, and the inner wall of the rotating sleeve 22 is provided with an internal thread. A threaded connection is formed between the connecting seat 19 and the rotating sleeve 22. During use, one end of the connecting pipe 20 is placed inside the connecting seat 19. Since there is a threaded connection between the connecting seat 19 and the rotating sleeve 22, under the cooperation of the limiting plate 21, the rotating sleeve 22 is rotated to drive the connecting pipe 20 to move. A sealing connection treatment is carried out between the connecting seat 19 and the connecting pipe 20 by using a sealing gasket, making the connection between the connecting pipe 20 and the filtering chamber 9 more convenient and fast, thus greatly improving the convenience of the device during use.

[0022] A sealing gasket is provided at the bottom end inside the connecting seat 19. A sealing connection is formed between the connecting seat 19 and the connecting pipe 20 through the sealing gasket. The setting of the sealing gasket makes it difficult for waste gas to leak during transportation.

[0023] Working principle: First, the staff places one end of the connecting pipe 20 inside the connecting seat 19. Since there is a threaded connection between the connecting seat 19 and the rotating sleeve 22, under the cooperation of the limiting plate 21, the rotating sleeve 22 is rotated to drive the connecting pipe 20 to move. A sealing connection treatment is carried out between the connecting seat 19 and the connecting pipe 20 by using a sealing gasket. Then, the blower 7 is started, and the hydrogenation waste gas can be extracted into the internal combustion furnace 3 through the gas transmission pipe 8 and the filtering chamber 9, and incinerated by using the regenerative combustion furnace 3. By using the waste heat boiler, steam is generated from the heat of the high-temperature flue gas and recycled to the production device, thereby saving steam consumption and achieving energy conservation and consumption reduction. At this time, the filter plate 10 can filter the hydrogenation waste gas inside the filtering chamber 9, making it difficult for the waste gas to damage the blower 7. When it needs to be cleaned after long-term use, the positioning pin 17 is pulled to make the positioning pin 17 disengage from the positioning hole 15, and then the mounting block 14 is pulled out from the inside of the fixing seat 12. At this time, the filter plate 10 can be taken out from the inside of the filtering chamber 9 to clean the filter plate 10. After cleaning, the positioning pin 17 is pulled, and then the filter chamber 9 is placed inside the filtering chamber 9. At this time, the mounting block 14 slides into the inside of the mounting groove 13, and then the positioning pin 17 is released. The telescopic spring 18 is under the action of elastic force, driving the positioning pin 17 to extend, making the positioning pin 17 engage with the positioning hole 15 to complete the installation of the filter plate 10 and the sealing plate 11.

[0024] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrogenation waste gas waste heat recovery device, comprising a bottom plate (1), characterized in that: A support leg (2) is installed at the top of the base plate (1), a regenerative incinerator (3) is installed at the top of the support leg (2), a smoke exhaust pipe (4) is installed at one end of the regenerative incinerator (3), an air inlet (5) is installed at the other end of the regenerative incinerator (3), a mounting frame (6) is installed at the other side of the top of the base plate (1), a blower (7) is installed at one side of the top of the mounting frame (6), both ends of the blower (7) are installed with an air supply pipe (8), one end of the air supply pipe (8) is connected to one end of the air inlet (5), a filter chamber (9) is installed at the other side of the top of the mounting frame (6), the other end of the air supply pipe (8) is connected to one end of the filter chamber (9), a filter mechanism is arranged inside the filter chamber (9), and a connecting mechanism is arranged at one end of the filter chamber (9); The filtering mechanism comprises a filter plate (10), a sealing plate (11) and a disassembly structure; the filter plate (10) is installed inside the filter cavity (9); and a sealing plate (11) is installed at one end of the filter plate (10).

2. A hydrogenation waste gas waste heat recovery device according to claim 1, characterized in that: The disassembly and assembly structure comprises a fixing seat (12), a mounting groove (13), a mounting block (14), a positioning hole (15), a mounting cavity (16), a positioning pin (17) and a telescopic spring (18); the fixing seat (12) is mounted above and below the front end of the filter cavity (9); a mounting groove (13) is provided inside the fixing seat (12); a mounting block (14) is provided inside the mounting groove (13); one end of the mounting block (14) is respectively connected to one end of a sealing plate (11); a positioning hole (15) is provided inside the mounting block (14); a mounting cavity (16) is installed on one side of the fixing seat (12); a positioning pin (17) is provided inside the mounting cavity (16); one end of the positioning pin (17) extends to the inside of the positioning hole (15); a telescopic spring (18) is provided on the outer wall of the positioning pin (17); and the telescopic spring (18) is installed inside the mounting cavity (16).

3. A hydrogenation waste gas waste heat recovery device according to claim 2, characterized in that: The outer diameter of the positioning pin (17) is smaller than the inner diameter of the positioning hole (15), and a snap-fit ​​structure is formed between the positioning hole (15) and the positioning pin (17).

4. A hydrogenation waste gas waste heat recovery device according to claim 3, characterized in that: Two filter plates (10) are arranged inside the filter cavity (9), and the two filter plates (10) are symmetrically distributed about the central axis of the filter cavity (9).

5. The hydrogenation waste gas waste heat recovery device according to claim 1, characterized in that: The connection mechanism comprises a connection seat (19), a connection pipe (20), a limit plate (21) and a rotating sleeve (22); the connection seat (19) is mounted on one end of the filter chamber (9); a connection pipe (20) is mounted inside the connection seat (19); an outer wall of the connection pipe (20) is provided with a limit plate (21); an outer wall of the limit plate (21) is provided with a rotating sleeve (22); an outer wall of the connection seat (19) is provided with an external thread; an inner wall of the rotating sleeve (22) is provided with an internal thread; a threaded connection is formed between the connection seat (19) and the rotating sleeve (22).

6. A hydrogenation waste gas waste heat recovery device according to claim 5, characterized in that: A sealing gasket is provided at the bottom end of the connection seat (19), and the connection seat (19) and the connection pipe (20) are sealed and connected via the sealing gasket.

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