Reaction kettle convenient to clean for methanol synthesis

Abstract

The utility model provides a convenient-to-clean reaction kettle for methanol synthesis, which relates to the technical field of reaction kettle cleaning, and comprises a kettle body, an inner top cover is fixedly connected to the kettle top in the kettle body, a sealing cover which ascends and descends along the depth direction of the kettle body is inserted at the opening of the inner top cover, and a multi-channel water spray pipe is arranged on the inner bottom surface of the sealing cover. A multi-channel water spraying pipe is arranged in the sealing cover, when the sealing cover descends, a water pipe is released through rotation of the pipe rolling frame, cleaning is conveyed into the multi-channel water spraying pipe through the water pipe and sprayed out along a water outlet of the multi-channel water spraying pipe, cleaning of the inner wall of the kettle body is achieved, and after cleaning is completed, the inner wall of the kettle body is cleaned. The sealing cover ascends again to be attached to the inner top cover, so that the sealing cover is stored and is separated from the interior of the kettle body, and residual raw materials are prevented from entering the kettle body.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor cleaning, in particular to a reactor for methanol synthesis which is easy to clean. Background Art

[0002] The methanol synthesis unit uses coal-based synthesis gas as raw material and adopts low-pressure methanol synthesis technology to produce MTO-grade methanol products and hydrogen products. It is mainly composed of a compression unit, a synthesis unit, a stabilization tower distillation unit, a hydrogen recovery unit, public engineering auxiliary facilities and corresponding reactors. In order to ensure the quality of the product, the reactor needs to be cleaned after completing a production cycle.

[0003] Therefore, a reactor that is easy to clean in the prior art is disclosed as CN220328657U. The materials and liquids to be mixed are added into the containing chamber. The stirring shaft mixes the materials and liquids in the containing chamber. The containing chamber in the reactor body needs to be cleaned and the motor is started. Since the stirring shaft includes a first connecting section, a second connecting section and a third connecting section from top to bottom, as the second connecting section rotates, the scraper plate can move up and down in the containing chamber to scrape the inner wall of the reactor body, so that impurities on the inner wall of the reactor body can fall from the inner wall and leave the reactor body. Therefore, the arrangement of the hanging plate can facilitate the cleaning of the inside of the reactor body.

[0004] However, the residual raw materials on the scraper plate cannot be self-cleaned, that is, the cleaning is insufficient, thus easily affecting the manufacturing quality of the next finished product. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a reaction kettle which is easy to clean and is used for methanol synthesis.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a reaction kettle for methanol synthesis that is easy to clean, comprising a kettle body, an inner top cover fixedly connected to the kettle top in the kettle body, a sealing cover that rises and falls along the depth direction of the kettle body inserted at the cover opening of the inner top cover, a multi-channel water spray pipe is arranged on the inner bottom surface of the sealing cover, a pipe reel is rotatably connected to the center of the bottom of the inner top cover, one end of the water pipe wound on the pipe reel passes through the sealing cover and is connected to the water inlet pipe of the multi-channel water spray pipe, each water outlet of the multi-channel water spray pipe is sleeved with a sleeve that passes through the cover wall of the sealing cover, and an electric telescopic rod for driving the sleeve to move is fixedly connected to the outer wall of the multi-channel water spray pipe.

[0007] Preferably, the bottom edge of the inner top cover is rotatably connected to a plurality of winding reels distributed in a circular array, and the wires wound on the winding reels penetrate the inner wall of the inner top cover and are fixedly connected to the sealing cover.

[0008] Preferably, one end of the winding drum passes through the kettle body and the top, and is fixedly connected to a transmission gear, the kettle body outside the kettle top is rotatably connected to a double-sided gear ring meshing with the transmission gear, and the kettle body outside the kettle top is rotatably connected to a driving gear meshing with the other tooth surface of the double-sided gear ring.

[0009] Preferably, one of the end faces of the cable reel and the pipe reel rack is fixedly connected to a bevel gear ring, and the top of the kettle body is located between the two bevel gear rings and is fixedly connected to an automatic transmission, the output shaft and input shaft of the automatic transmission respectively extend toward the two bevel gear rings, and are both fixedly connected to a bevel gear block meshing with the bevel gear rings.

[0010] Preferably, an airbag is arranged inside the multi-channel water spray pipe, and a multi-tube inflation hood connected to the inside of the airbag is arranged outside the multi-channel water spray pipe, the multi-tube inflation hood is provided with inflation ports corresponding to the positions of several sleeves one by one, and piston blocks are arranged in the inflation ports of the multi-tube inflation hood.

[0011] Preferably, an electric telescopic rod is also fixedly connected to the inner wall of the sealing cover, and the electric telescopic rod in the sealing cover is used to drive the piston block to move.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, a multi-channel water spray pipe is arranged in the sealing cover. When the sealing cover is lowered, the water pipe is released by rotating the pipe reel, and the cleaning material is transported to the multi-channel water spray pipe through the water pipe and sprayed along the water outlet of the multi-channel water spray pipe to clean the inner wall of the kettle body. After the cleaning is completed, the sealing cover rises again to fit the inner top cover, so that the sealing cover is stored and separated from the inside of the kettle body to prevent residual raw materials from entering the kettle body.

[0014] 2. In the utility model, a multi-tube inflatable hood is provided. When the sleeve moves toward the inner wall of the kettle body 1 so that the volume of the multi-channel water spray pipe increases, the piston block moves in the multi-tube inflatable hood to pump air into the airbag, and the expanded airbag is used to eliminate the increased volume in the multi-channel water spray pipe, thereby ensuring that no bubbles appear in the multi-tube inflatable hood, ensuring the smoothness of the cleaning water spray, and thus ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a reaction kettle for methanol synthesis that is easy to clean;

[0016] Figure 2 The utility model proposes a reaction kettle which is easy to clean for methanol synthesis Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0019] Legend: 1. Kettle body; 2. Transmission gear; 3. Double-sided gear ring; 4. Inner top cover; 5. Sealing cover; 6. Air bag; 7. Tube reel; 8. Casing; 9. Driving gear; 10. Cable reel; 11. Multi-tube inflation cover; 12. Piston block; 13. Bevel gear block; 14. Bevel gear ring; 15. Electric telescopic rod; 16. Multi-channel water spray pipe; 17. Automatic transmission. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4 As shown, a reaction kettle for methanol synthesis which is easy to clean comprises a kettle body 1, an inner top cover 4 is fixedly connected to the kettle top in the kettle body 1, a sealing cover 5 which is lifted and lowered along the depth direction of the kettle body 1 is inserted at the cover opening of the inner top cover 4, a multi-channel water spray pipe 16 is arranged on the inner bottom surface of the sealing cover 5, a pipe reel rack 7 is rotatably connected to the center of the cover bottom of the inner top cover 4, one end of the water pipe wound on the pipe reel rack 7 passes through the sealing cover 5 and is connected to the water inlet pipe of the multi-channel water spray pipe 16, each water outlet of the multi-channel water spray pipe 16 is sleeved with a sleeve 8 which passes through the cover wall of the sealing cover 5, and an electric telescopic rod 15 for driving the sleeve 8 to move is fixedly connected to the outer wall of the multi-channel water spray pipe 16.

[0023] Specifically, when the sealing cover 5 is subjected to an upward pulling force and is pressed against the cover opening of the inner top cover 4, the cover opening of the inner top cover 4 is closed, thereby realizing the separation of the interior of the inner top cover 4 from the interior of the kettle body 1. When cleaning the inner wall of the kettle body 1, the sealing cover 5 is lowered, so that the multi-channel water spray pipe 16 in the sealing cover 5 is connected with the interior of the kettle body 1, and as the sealing cover 5 is lowered, the pipe reel rack 7 is synchronously rotated to release the water pipe, and the cleaning water enters along one end of the water pipe and enters the multi-channel water spray pipe 16 along the other end of the water pipe, and finally is sprayed out along the water outlet of the multi-channel water spray pipe 16. In addition, the electric telescopic rod 15 on the multi-channel water spray pipe 16 is extended to realize the movement of the sleeve 8, and then the distance between the sleeve 8 port and the inner wall of the kettle body 1 is adjusted. Therefore, the impact force of the cleaning water sprayed on the inner wall of the kettle body 1 can be adjusted to realize the cleaning of the inner wall of the kettle body 1. After the cleaning is completed, the sealing cover 5 rises and resets to re-enter the inner top cover 4.

[0024] In addition, a plurality of winding reels 10 distributed in a circular array are rotatably connected to the bottom edge of the inner top cover 4 , and the wires wound on the winding reels 10 penetrate the inner wall of the inner top cover 4 and are fixedly connected to the sealing cover 5 .

[0025] One end of the winding drum 10 passes through the top of the kettle body 1 and is fixedly connected to the transmission gear 2. The top of the kettle body 1 is rotatably connected to a double-sided gear ring 3 meshing with the transmission gear 2, and the top of the kettle body 1 is rotatably connected to a driving gear 9 meshing with the other tooth surface of the double-sided gear ring 3.

[0026] One of the winding drums 10 and the end face of the pipe reel rack 7 is fixedly connected with a bevel gear ring 14, and the top of the kettle in the kettle body 1 is located between the two bevel gear rings 14 and is fixedly connected with an automatic transmission 17, the output shaft and the input shaft of the automatic transmission 17 extend toward the two bevel gear rings 14 respectively, and are fixedly connected with a bevel gear block 13 meshing with the bevel gear ring 14.

[0027] Specifically, a motor is installed outside the kettle body 1 to drive the driving gear 9 to rotate, so as to realize the rotation of the double-sided gear ring 3, and then the transmission gear 2 meshing with the other tooth surface of the double-sided gear ring 3 and the winding drum 10 connected to the transmission gear 2 rotate, so as to realize the winding or releasing of the wire wound on the winding drum 10, and then realize the rising or falling of the sealing cover 5, and when the winding drum 10 rotates, the bevel gear ring 14 on its end face drives the bevel gear block 13 on the input shaft of the automatic transmission 17 to rotate, and under the speed change action of the automatic transmission 17, the output shaft thereof is realized The bevel gear block 13 on the pipe reel 7 drives the bevel gear ring 14 on the pipe reel rack 7 to rotate, that is, when the sealing cover 5 descends, the pipe reel rack 7 rotates synchronously to release the water pipe, and when the sealing cover 5 rises, the pipe reel rack 7 rotates synchronously to reel up the water pipe, and a camera can be installed on the sealing cover 5 to monitor the relaxation degree of the water pipe in real time. When the water pipe is relaxed, the speed of the automatic transmission 17 is controlled by the controller, and the speed of the pipe reel rack 7 is adjusted by adjusting the speed of the bevel gear block 13 on its output shaft, thereby adjusting the speed of releasing and reeling the water pipe to ensure that the water pipe is in a taut state.

[0028] In addition: an airbag 6 is arranged inside the multi-channel water spray pipe 16, and a multi-tube inflation hood 11 connected to the inside of the airbag 6 is arranged outside the multi-channel water spray pipe 16, the multi-tube inflation hood 11 is provided with inflation ports corresponding to the positions of several sleeves 8, and piston blocks 12 are arranged in the inflation ports of the multi-tube inflation hood 11.

[0029] The inner wall of the sealing cover 5 is also fixedly connected with an electric telescopic rod 15 , and the electric telescopic rod 15 in the sealing cover 5 is used to drive the piston block 12 to move.

[0030] Specifically, the electric telescopic rod 15 is synchronously extended and retracted. Therefore, when the electric telescopic rod 15 at the corresponding position is extended to realize the movement of the sleeve 8 toward the inner wall of the kettle body 1, the volume of the multi-channel water spray pipe 16 will increase, which may easily cause bubbles to appear in the multi-channel water spray pipe 16, thereby causing uneven spraying of cleaning water. At this time, the electric telescopic rod 15 at another position is extended to realize the movement of the piston block 12 in the multi-tube inflation hood 11, inflating the air bag 6, and using the expanded air bag 6 to eliminate the bubbles appearing in the multi-channel water spray pipe 16, thereby ensuring the smoothness of the cleaning water spraying.

[0031] Working principle: when cleaning the inner wall of the kettle body 1, the installed motor drives the driving gear 9 to rotate, so that the double-sided gear ring 3 drives the transmission gear 2 and the winding drum 10 to rotate, releases the wound wire, and then realizes the lowering of the sealing cover 5. At the same time, the bevel gear ring 14 on the end face of the winding drum 10 drives the bevel gear block 13 on the input shaft of the automatic transmission 17 to rotate. Under the speed change action of the automatic transmission 17, the other bevel gear block 13 drives the bevel gear ring 14 on the pipe reel 7 to rotate, that is, when the sealing cover 5 descends, the pipe reel 7 rotates synchronously to release the water pipe, and the clean water enters the multi-channel water spray pipe 16 along one end of the water pipe. During the descent of the sealing cover 5, the clean water sprayed from the water outlet of the multi-channel water spray pipe 16 cleans the inner wall of the kettle body 1.

[0032] The wiring diagram of the electric telescopic rod 15 and the automatic transmission 17 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the electric telescopic rod 15 and the automatic transmission 17 are not explained in detail.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A methanol synthesis reactor that is easy to clean, comprising a reactor body (1), characterized in that: The kettle body (1) is fixedly connected to the kettle top with an inner top cover (4), a sealing cover (5) which is lifted and lowered along the depth direction of the kettle body (1) is inserted at the cover opening of the inner top cover (4), a multi-channel water spray pipe (16) is arranged on the inner bottom surface of the sealing cover (5), a pipe reel rack (7) is rotatably connected to the center of the bottom of the inner top cover (4), one end of the water pipe wound on the pipe reel rack (7) passes through the sealing cover (5) and is connected to the water inlet pipe of the multi-channel water spray pipe (16), each water outlet of the multi-channel water spray pipe (16) is sleeved with a sleeve (8) which is arranged through the cover wall of the sealing cover (5), and an electric telescopic rod (15) for driving the sleeve (8) to move is fixedly connected to the outer wall of the multi-channel water spray pipe (16).

2. The easy-to-clean reactor for methanol synthesis according to claim 1, characterized in that: The bottom edge of the inner top cover (4) is rotatably connected to a plurality of winding reels (10) distributed in a circular array, and the wires wound on the winding reels (10) penetrate the inner wall of the inner top cover (4) and are fixedly connected to the sealing cover (5).

3. The easy-to-clean reactor for methanol synthesis according to claim 2, characterized in that: One end of the winding drum (10) passes through the top of the kettle body (1) and is fixedly connected to a transmission gear (2); the top of the kettle body (1) is rotatably connected to a double-sided gear ring (3) meshing with the transmission gear (2); and the top of the kettle body (1) is rotatably connected to a driving gear (9) meshing with the other tooth surface of the double-sided gear ring (3).

4. The easy-to-clean reactor for methanol synthesis according to claim 3, characterized in that: One of the cable reel (10) and the end surface of the pipe reel rack (7) is fixedly connected to a bevel gear ring (14); the kettle top in the kettle body (1) is located between the two bevel gear rings (14) and is fixedly connected to an automatic gearbox (17); the output shaft and the input shaft of the automatic gearbox (17) extend toward the two bevel gear rings (14) respectively, and are fixedly connected to bevel gear blocks (13) meshing with the bevel gear rings (14).

5. The easy-to-clean reactor for methanol synthesis according to claim 1, characterized in that: An air bag (6) is arranged inside the multi-channel water spray pipe (16), and a multi-tube inflation cover (11) communicating with the inside of the air bag (6) is arranged outside the multi-channel water spray pipe (16), the multi-tube inflation cover (11) is provided with inflation ports corresponding to the positions of the plurality of sleeves (8) one by one, and piston blocks (12) are arranged inside the inflation ports of the multi-tube inflation cover (11).

6. The easy-to-clean reactor for methanol synthesis according to claim 5, characterized in that: The inner wall of the sealing cover (5) is also fixedly connected with an electric telescopic rod (15), and the electric telescopic rod (15) in the sealing cover (5) is used to drive the piston block (12) to move.

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