Adjustable air inlet mechanism and methanol synthesis tower containing the same

Abstract

The application discloses a kind of adjustable air intake mechanism and containing the methanol synthesis tower of mechanism, it is related to methanol synthesis technical field, the mechanism includes synthesis gas delivery pipe and first heat exchanger, the first heat exchanger input end is communicated with synthesis gas delivery pipe output end, the inside one end of synthesis gas delivery pipe is fixedly provided with fixed baffle, the one end of adjusting pipe is fixedly provided with sliding tube, the sliding tube is slidably arranged in synthesis gas delivery pipe, the one side of fixed baffle is closely provided with adjusting rotating plate, the inside of synthesis gas delivery pipe is equipped with driving mechanism.The application is provided with adjustable air intake mechanism, so that when the catalyst in methanol synthesis tower and synthesis gas reaction speed slow down, the air intake of methanol synthesis tower air intake end can be adjusted, by setting dismounting mechanism, so that catalyst cylinder is disassembled, by setting heating mechanism, so that high temperature heat conducting medium can flow in loading pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of methanol synthesis, and in particular to a variable intake mechanism and a methanol synthesis tower comprising the same. BACKGROUND

[0002] Since the industrial production, the raw material route of methanol synthesis has undergone significant changes. In the early days, coal and coke were mainly relied on as raw materials. With the development of technology and changes in resource distribution, methanol production processes using natural gas as raw material have been widely used due to their economic efficiency and relatively simple process. Subsequently, methanol production devices using heavy oil as raw material have also developed to some extent. Although there are various methods of methanol synthesis, including multiple process paths using different raw materials, the current catalytic synthesis using synthesis gas has become the absolute mainstream. The typical process is as follows: first, the prepared synthesis gas is pressurized to the required pressure for the reaction, and is transported to a heat exchanger for temperature adjustment; then, the synthesis gas with appropriate temperature enters the methanol reaction tower equipped with specific catalysts, and the synthesis reaction occurs under the action of the catalysts to generate methanol; the gas mixture after the reaction is discharged from the reaction tower, enters the cooling equipment to reduce the temperature, and finally undergoes gas-liquid separation to obtain the crude methanol product.

[0003] The methanol reaction tower, as the core equipment of the synthesis process, is usually provided with multiple sleeves or similar structures inside for filling catalyst particles and forming reaction channels. These catalysts need to be maintained at an appropriate operating temperature before and during the reaction, and external heating is often required. There are two major problems in the long-term operation of existing methanol synthesis towers: first, the catalysts need to be replaced and filled after being deactivated with use, which often highly depends on manual operation, not only being tedious, time-consuming and labor-intensive, but also being prone to installation accidents or personnel injuries in the limited space inside the tower, and the replacement efficiency and safety need to be improved; secondly, and more importantly, when the catalyst activity decreases or the reaction rate slows down due to other factors, the existing intake end lacks effective real-time adjustment mechanism, and cannot flexibly and quickly adjust the intake amount to maintain system stability and optimize reaction efficiency according to the changes in the reaction state and pressure inside the tower, which has the problems of rigid operation and slow response.

[0004] Based on this, a variable intake mechanism and a methanol synthesis tower comprising the same are now provided, which can eliminate the drawbacks of existing devices. SUMMARY

[0005] The purpose of the present application is to provide a variable intake mechanism and a methanol synthesis tower comprising the same to solve the problem of inconvenient real-time adjustment of the intake amount in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The utility model provides an adjustable air inlet mechanism, including synthesis gas delivery pipe and first heat exchanger, two first heat exchanger are symmetrically arranged, and the input of first heat exchanger is communicated with the output of synthesis gas delivery pipe, and the inside one end of synthesis gas delivery pipe is fixedly provided with fixed baffle, the other end of synthesis gas delivery pipe is fixedly provided with connecting pipe, the inside of connecting pipe is slidably provided with sliding ring, and the one end of adjusting pipe is fixedly provided with sliding pipe, and the one end of adjusting pipe is fixedly provided with sliding pipe, and the inside of synthesis gas delivery pipe is slidably provided with sliding pipe, the one side of fixed baffle is closely provided with adjusting rotary plate, the other side of adjusting rotary plate is closely provided with limiting ring, and the inside of synthesis gas delivery pipe is fixedly provided with limiting ring, and the inside of synthesis gas delivery pipe is provided with drive mechanism for driving adjusting rotary plate to rotate.

[0008] On the basis of the above technical scheme, the application further provides the following optional technical schemes:

[0009] In an optional scheme, the drive mechanism includes a spiral column, one end of the spiral column is fixedly provided with a connecting shaft, the connecting shaft is fixedly arranged on the middle part of one side of the adjusting rotary plate, a spiral groove is arranged on the spiral column, a driving column is slidably arranged in the spiral groove, the driving column is fixedly arranged on the first support frame, the first support frame is fixedly arranged in the adjusting pipe, a plurality of first guide sliding rods are arrayed and slidably arranged on the sliding ring, the first guide sliding rods are fixedly arranged in the connecting pipe, a plurality of first return springs are arranged between one side of the sliding ring and one end of the connecting pipe, and the plurality of first return springs are coaxially arranged with the plurality of first guide sliding rods.

[0010] In an optional scheme, the input end of the adjusting pipe is communicated with a bellows, the other end of the bellows is communicated with a fixed delivery pipe, the fixed delivery pipe is fixedly provided with a first retaining pipe, a second retaining pipe is slidably arranged in the first retaining pipe, and the second retaining pipe is fixedly arranged on one end of the adjusting pipe.

[0011] The methanol synthesis column with the adjustable intake mechanism further comprises second heat exchangers and methanol synthesis columns, both of which are symmetrically arranged, both input ends of the second heat exchangers are communicated with the output ends of the first heat exchangers through first pipes, the output ends of the second heat exchangers are provided with second pipes, both of the second pipes are communicated with the interiors of the methanol synthesis columns, the interiors of the methanol synthesis columns are rotatably provided with switching turntables, a plurality of mounting holes are arranged on the switching turntables, catalyst cylinders are mounted in the mounting holes, the bottom ends of the catalyst cylinders are fixedly provided with fixed mesh plates, the interiors of the catalyst cylinders are slidably provided with catalyst cylinders, a sealing turntable is arranged above the switching turntables and rotates in the interiors of the methanol synthesis columns, the interiors of the catalyst cylinders are hollow, the interiors of the catalyst cylinders are provided with heating mechanisms for constant temperature heating of the switching turntables, and dismounting mechanisms for replacement of the catalyst cylinders are arranged at the upper ends of the methanol synthesis columns.

[0012] In an alternative solution, third pipes are arranged at the bottom ends of the methanol synthesis columns, the other ends of the third pipes are communicated with the other input ends of the second heat exchangers, the other output ends of the second heat exchangers are provided with fourth pipes, the other ends of the fourth pipes are communicated with the other input ends of the first heat exchangers, and the other output ends of the first heat exchangers are communicated with the input ends of the air coolers.

[0013] In an alternative solution, a bevel gear ring is fixedly arranged at the upper end of the switching turntable, a driving bevel gear is meshingly arranged on the bevel gear ring, a fixed frame is rotatably arranged on the one end of the driving bevel gear shaft, the fixed frame is fixedly arranged in the interior of the methanol synthesis column, the other end of the driving bevel gear extends to the exterior of the methanol synthesis column, the one end of the driving bevel gear shaft is fixedly connected with the output end of a first motor, the first motor is fixedly arranged in a mounting box, and the mounting box is fixedly arranged on the methanol synthesis column.

[0014] In an alternative solution, the heating mechanism comprises spiral plates, the spiral plates are fixedly arranged in the interiors of the catalyst cylinders, the spiral plates and the interiors of the catalyst cylinders combine to form spiral channels, first conveying pipes and second conveying pipes are arranged at the two ends of the spiral channels, a plurality of the first conveying pipes are mounted in the mounting holes in the interiors of sealing rings, the sealing rings rotate in fixed rings, the fixed rings are fixedly arranged in the interiors of the methanol synthesis columns, liquid inlet pipes are arranged on the fixed rings, the second conveying pipes are communicated with one end of a liquid discharge pipe, and the other end of the liquid discharge pipe extends to the exterior of the methanol synthesis column.

[0015] In an optional scheme: the dismounting mechanism includes a sealing cover and a limiting head, the upper end of the sealing cover is communicated and provided with a fixed pipe, one end of the fixed pipe is fixedly provided with an extension plate, the extension plate is fixedly arranged on the output end of a first electric cylinder, the first electric cylinder is fixedly arranged on the upper end of the methanol synthesis tower, the limiting head is slidingly arranged in the fixed pipe, the limiting head is hollow inside, limiting frames are symmetrically slidingly arranged in the limiting head, the limiting frames are slidingly arranged on limiting sliding rods, the limiting sliding rods are fixedly arranged in the limiting head, third return springs are arranged between one end of each limiting frame and the limiting head, connecting rods are hingedly arranged at one end of each limiting frame, the other end of each connecting rod is hingedly arranged on the bottom end of a mounting plate, the mounting plate is fixedly arranged on the output end of a second electric cylinder, the second electric cylinder is arranged in an extension column, the extension column is fixedly arranged on the upper end of the limiting head, the extension column is fixedly arranged on one end of a pushing frame, the other end of the pushing frame is provided with a sliding block and a threaded block, the sliding block is fixedly arranged on a second guide sliding rod, the threaded block is arranged on a threaded rod through a threaded hole, the threaded rod is rotatable between two support plates, the second guide sliding rod is fixedly arranged between the two support plates, the support plates are fixedly arranged on the methanol synthesis tower, one end of the threaded rod is fixedly connected with the output end of a second motor, the second motor is fixedly arranged on the bottom end of one support plate, and one end of each catalyst cylinder is fixedly provided with a fixed seat.

[0016] In an optional scheme: the bottom end of each loading pipe is fixedly provided with a connecting seat, the bottom end of the connecting seat is provided with a sealing groove, a sealing block is slidingly arranged in the sealing groove, a fixed rod is fixedly arranged at the bottom end of the sealing block, a second supporting frame is slidingly arranged on the fixed rod, and the second supporting frame is fixedly arranged on one end of the connecting seat.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] 1、The adjustable air inlet mechanism is arranged, so that when the reaction speed of the catalyst in the methanol synthesis tower is slowed down, the driving column is driven to move under the push of the air pressure, the driving column is matched with the spiral groove of the spiral column to drive the adjusting rotating plate to rotate, thereby the air inlet amount of the air inlet end of the methanol synthesis tower can be adjusted, and the adjustable air inlet mechanism has a simple structure, thereby the practicability of the adjustable air inlet mechanism is improved.

[0019] 2、The dismounting mechanism is arranged, so that the catalyst cylinders can be conveniently dismounted and replaced, and when one catalyst cylinder is replaced, the remaining catalyst cylinders can continue to work, thereby the practicability of the methanol synthesis tower is improved, and the heating mechanism is arranged, so that the high-temperature heat-conducting medium can flow in the loading pipe to prevent the temperature difference in the loading pipe from changing greatly. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application.

[0021] Figure 2 is a structural schematic diagram of the present application.

[0022] Figure 3 is a structural schematic diagram of the internal structure of the syngas conveying pipe of the present application.

[0023] Figure 4 is a structural schematic diagram of the fixed baffle of the present application.

[0024] Figure 5 is a structural schematic diagram of the internal structure of the methanol synthesis tower of the present application.

[0025] Figure 6 is a structural schematic diagram of the spiral plate of the present application.

[0026] Figure 7 is a schematic diagram of the installation of the sealing block of the present application.

[0027] Figure 8 is a structural schematic diagram of the fixed seat of the present application.

[0028] Figure 9 is a structural schematic diagram of the internal structure of the limiting head of the present application.

[0029] Figure 10 is a schematic diagram of the installation of the threaded rod of the present application.

[0030] Legend of reference signs: 11 syngas conveying pipe, 12 adjusting pipe, 13 first return spring, 14 fixed baffle, 15 adjusting rotating plate, 16 spiral column, 17 driving column, 18 bellows, 19 fixed conveying pipe, 20 first heat exchanger, 21 second heat exchanger, 22 first pipe, 23 second pipe, 24 methanol synthesis tower, 25 third pipe, 26 fourth pipe, 27 air cooler, 28 loading pipe, 29 switching carousel, 30 bevel gear ring, 31 first electric motor, 32 sealing carousel, 33 connecting seat, 34 sealing block, 35 second return spring, 36 spiral plate, 37 fixed ring, 38 sealing block ring, 39 liquid discharge pipe, 40 catalyst cylinder, 41 fixed seat, 42 sealing cover, 43 first electric cylinder, 44 limiting head, 45 limiting frame, 46 third return spring, 47 connecting rod, 48 second electric cylinder, 49 pushing frame, 50 threaded rod, 51 second electric motor. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below in combination with the drawings and examples.

[0032] In one embodiment, as Figures 1-10As shown, an adjustable air inlet mechanism, comprising a syngas conveying pipe 11 and a first heat exchanger 20, two said first heat exchanger 20 is symmetrically arranged, the input end of said first heat exchanger 20 is communicated with the output end of syngas conveying pipe 11, the inside of said syngas conveying pipe 11 is fixedly provided with a fixed baffle 14 at one end, the other end of said syngas conveying pipe 11 is fixedly provided with a connecting pipe, the inside of said connecting pipe is slidably provided with a sliding ring, said sliding pipe is fixedly provided at one end of adjusting pipe 12, one end of said adjusting pipe 12 is fixedly provided with a sliding pipe, said sliding pipe is slidably provided in the inside of syngas conveying pipe 11, one side of said fixed baffle 14 is tightly provided with an adjusting rotating plate 15, the other side of said adjusting rotating plate 15 is tightly provided with a limiting ring, said limiting ring is fixedly provided in the inside of syngas conveying pipe 11, the inside of said syngas conveying pipe 11 is provided with a driving mechanism for driving the rotation of adjusting rotating plate 15, through the driving mechanism, the air inlet amount of one end of syngas conveying pipe 11 can be adjusted in real time;

[0033] Said driving mechanism comprises a spiral column 16, one end of said spiral column 16 is fixedly provided with a connecting shaft, said connecting shaft is fixedly provided at the middle of one side of adjusting rotating plate 15, said spiral column 16 is provided with a spiral groove, a driving column 17 is slidably provided in said spiral groove, said driving column 17 is fixedly provided on a first support frame, said first support frame is fixedly provided in the inside of adjusting pipe 12, a plurality of first guide sliding rods are arrayed and slidably provided on the sliding ring, said first guide sliding rods are fixedly provided in the inside of connecting pipe, a plurality of first reset springs 13 are provided between one side of sliding ring and one end of the inside of connecting pipe, a plurality of said first reset springs 13 are coaxially arranged with a plurality of first guide sliding rods, in use, when the reaction speed of catalyst in methanol synthesis tower 24 and syngas slows down, the air pressure in methanol synthesis tower 24 increases, so that the air pressure in first heat exchanger 20 and syngas conveying pipe 11 increases at the same time, so that the sliding pipe at one end of adjusting pipe 12 slides in the inside of syngas conveying pipe 11, adjusting pipe 12 slides at the same time to drive the movement of driving column 17, driving column 17 cooperates with the spiral groove on spiral column 16, so that spiral column 16 drives the rotation of adjusting rotating plate 15, adjusting rotating plate 15 blocks the air outlet area on fixed baffle 14, thereby reducing the air inlet amount in first heat exchanger 20.

[0034] The input end of said adjusting pipe 12 is communicated with a bellows 18, the other end of said bellows 18 is communicated with a fixed conveying pipe 19, a first retaining pipe is fixedly provided on said fixed conveying pipe 19, a second retaining pipe is slidably provided in the inside of said first retaining pipe, said second retaining pipe is fixedly provided at one end of adjusting pipe 12, in use, when adjusting pipe 12 moves, bellows 18 can compensate the displacement of adjusting pipe 12.

[0035] The methanol synthesis tower containing the adjustable intake mechanism, further comprises two second heat exchangers 21 and methanol synthesis towers 24, the two second heat exchangers 21 and the methanol synthesis towers 24 are symmetrically arranged, the input ends of the two second heat exchangers 21 are respectively communicated with the output ends of the two first heat exchangers 20 through first pipes 22, the output ends of the second heat exchangers 21 are provided with second pipes 23 in communication, the two second pipes 23 are respectively communicated with the interiors of the two methanol synthesis towers 24, the interiors of the methanol synthesis towers 24 are rotatably provided with switching turntables 29, a plurality of mounting holes are arrayed on the switching turntables 29, catalyst cylinders 40 are mounted in the mounting holes, fixed mesh plates are fixedly arranged at the bottom ends of the catalyst cylinders 40, the interiors of the catalyst cylinders 40 are slidably provided with catalyst cylinders 40, a sealing turntable 32 is arranged above the switching turntable 29, the sealing turntable 32 rotates in the interior of the methanol synthesis tower 24, the inside of the catalyst cylinder 28 is hollow, a heating mechanism for constant temperature heating of the switching turntable 29 is arranged on the inside of the catalyst cylinder 28, and dismounting mechanisms for facilitating replacement of the catalyst cylinders 40 are arranged at the upper ends of the methanol synthesis towers 24.

[0036] The third pipeline 25 is communicated with the bottom end of the methanol synthesis tower 24, the other end of the third pipeline 25 is communicated with the other input end of the second heat exchanger 21, the other output end of the second heat exchanger 21 is communicated with the fourth pipeline 26, the other end of the fourth pipeline 26 is communicated with the other input end of the first heat exchanger 20, the other output end of the first heat exchanger 20 is communicated with the input end of the air cooler 27, in use, the synthesis gas conveying pipe 11 is used for conveying synthesis gas, the two layers of synthesis gas enter the interiors of the two first heat exchangers 20, the synthesis gas enters the interior of the second heat exchanger 21 through the first pipeline 22, the synthesis gas forms a single path in the interiors of the first heat exchanger 20 and the second heat exchanger 21, then the synthesis gas enters the interior of the methanol synthesis tower 24 through the second pipeline 23, after the synthesis gas reacts with the catalyst in the interior of the methanol synthesis tower 24, the synthesis gas enters the interior of the second heat exchanger 21 through the third pipeline 25, the synthesis gas enters the interior of the first heat exchanger 20 through the fourth pipeline 26, the synthesis gas forms another single path in the interiors of the first heat exchanger 20 and the second heat exchanger 21, then the synthesis gas enters the interior of the air cooler 27, the air cooler 27 cools the synthesis gas, in the first heat exchanger 20 and the second heat exchanger 21, the synthesis gas in different paths and the products after the synthesis gas reacts are heat-exchanged, in the process that the synthesis gas is transmitted to the methanol synthesis tower 24, the synthesis gas sequentially passes through the synthesis gas conveying pipe 11, the first heat exchanger 20, the first pipeline 22, the second heat exchanger 21, the second pipeline 23 and the methanol synthesis tower 24; in the process that the products are transmitted from the methanol synthesis tower 24 to the air cooler 27, the products sequentially pass through the third pipeline 25, the second heat exchanger 21, the fourth pipeline 26, the first heat exchanger 20 and the air cooler 27; that is, in the first heat exchanger 20 and the second heat exchanger 21, two different paths are arranged, the products and the synthesis gas are heat-exchanged in the first heat exchanger 20 and the second heat exchanger 21 and are not mixed, the structural principles of the first heat exchanger 20, the second heat exchanger 21 and the air cooler 27 are prior art and are not described herein.

[0037] The taper gear ring 30 is fixedly arranged at the upper end of the switching turntable 29, the driving bevel gear is meshed on the taper gear ring 30, the fixed frame is rotatably arranged on one end of the rotating shaft of the driving bevel gear, the fixed frame is fixedly arranged in the interior of the methanol synthesis tower 24, the other end of the driving bevel gear extends to the exterior of the methanol synthesis tower 24, the one end of the rotating shaft of the driving bevel gear is fixedly connected with the output end of the first motor 31, the first motor 31 is fixedly arranged in the mounting box, the mounting box is fixedly arranged on the methanol synthesis tower 24, in use, when it is needed to replace the loading pipe 28, the output end of the first motor 31 drives the driving bevel gear to rotate, the driving bevel gear drives the taper gear ring 30 to rotate through meshing, the taper gear ring 30 drives the switching turntable 29 to rotate, and the catalyst cylinders 40 are rotated to the dismounting mechanism one by one for replacement.

[0038] The heating mechanism comprises a spiral plate 36 fixedly arranged inside the loading pipe 28, the spiral plate 36 and the inside of the loading pipe 28 are combined into a spiral channel, the spiral channel is respectively communicated with a first conveying pipe and a second conveying pipe at both ends, a plurality of first conveying pipes are respectively arranged in the mounting holes inside the sealing baffle ring 38, the sealing baffle ring 38 rotates inside the fixed ring 37, the fixed ring 37 is fixedly arranged inside the methanol synthesis tower 24, the fixed ring 37 is communicated with a liquid inlet pipe, the second conveying pipes are communicated with one end of the liquid outlet pipe 39, one end of the liquid outlet pipe 39 extends to the outside of the methanol synthesis tower 24, in use, when the catalyst inside the catalyst cylinder 40 needs to be heated, the external liquid supply component sends high-temperature heat-conducting medium into the inside of the fixed ring 37 through the liquid inlet pipe, the fixed ring 37 and the sealing baffle ring 38 form a dynamic sealing ring, then the high-temperature heat-conducting medium enters the inside of a plurality of spiral channels, then is discharged into the inside of the liquid outlet pipe 39 through the second conveying pipe, and a one-way valve is arranged on the second conveying pipe, so that the high-temperature heat-conducting medium flows in the spiral channel, and the catalyst is heated.

[0039] The disassembling mechanism comprises a sealing cover 42 and a limiting head 44, a fixed pipe is arranged in communication with the upper end of the sealing cover 42, an extension plate is fixedly arranged at one end of the fixed pipe, the extension plate is fixedly arranged on the output end of a first electric cylinder 43, the first electric cylinder 43 is fixedly arranged on the upper end of the methanol synthesis tower 24, the limiting head 44 is slidingly arranged in the fixed pipe, the limiting head 44 is hollow inside, limiting frames 45 are symmetrically slidingly arranged inside the limiting head 44, the limiting frames 45 are slidingly arranged on limiting sliding rods, the limiting sliding rods are fixedly arranged inside the limiting head 44, third return springs 46 are arranged between one end of the limiting frames 45 and the inside of the limiting head 44, connecting rods 47 are hingedly arranged at one end of the limiting frames 45, the other ends of the connecting rods 47 are hingedly arranged at the bottom end of a mounting plate, the mounting plate is fixedly arranged on the output end of a second electric cylinder 48, the second electric cylinder 48 is arranged in the middle of an extension column, the extension column is fixedly arranged on the upper end of the limiting head 44, the extension column is fixedly arranged at one end of a pusher 49, the pusher 49 is provided with sliding blocks and threaded blocks at the other end, the sliding blocks are fixedly arranged on second guide sliding rods, the threaded blocks are arranged on a threaded rod 50 through threaded holes, the threaded rod 50 is rotatably arranged between two supporting plates, the second guide sliding rods are fixedly arranged between the two supporting plates, the supporting plates are fixedly arranged on the methanol synthesis tower 24, one end of the threaded rod 50 is fixedly connected with the output end of a second electric motor 51, the second electric motor 51 is fixedly arranged at the bottom end of one supporting plate, fixed seats 41 are fixedly arranged at one end of the catalyst cylinders 40, when it is necessary to replace the catalyst cylinders 40, the switch-over turntable 29 drives the loading pipe 28 to rotate to below the sealing cover 42, then the output end of the first electric cylinder 43 drives the sealing cover 42 to move, so that the sealing cover 42 is sleeved at one end of the loading pipe 28, then the limiting head 44 extends to one end of the catalyst cylinders 40, then the output end of the second electric cylinder 48 drives the mounting plate to slide, the mounting plate drives the limiting frames 45 to slide through the connecting rods 47, one end of the limiting frames 45 extends to the outside of the limiting head 44, the limiting frames 45 cooperate with the fixed seats 41 to fix the catalyst cylinders 40, then the second electric motor 51 is started, the second electric motor 51 drives the threaded rod 50 to rotate, under the action of the threads, the pusher 49 drives the limiting head 44 to move, the limiting head 44 drives the catalyst cylinders 40 to move, so that the catalyst cylinders 40 are taken out for replacement.

[0040] The bottom end of the loading pipe 28 is fixedly provided with a connecting seat 33, the bottom end of the connecting seat 33 is provided with a sealing groove, the sealing groove is slidably provided with a sealing block 34, the bottom end of the sealing block 34 is fixedly provided with a fixed rod, the fixed rod is slidably provided with a second support frame, the second support frame is fixedly arranged at one end of the connecting seat 33, and the second reset spring 35 is arranged between the bottom end of the sealing block 34 and the upper end of the second support frame. When the synthesis gas enters the methanol synthesis tower 24, under the action of the sealing turntable 32, the gas flow range is reduced, then the synthesis gas enters the loading pipe 28, the synthesis gas reacts with the catalyst in the catalyst cylinder 40, the reacted gas pushes the sealing block 34 to slide, so that the synthesis gas is discharged through the third pipeline 25, and when the catalyst cylinder 40 is replaced, the sealing cover 42 seals one end of the loading pipe 28, so that one end of the loading pipe 28 is sealed under the action of the second reset spring 35, thereby preventing the gas from being discharged outside the methanol synthesis tower 24 through the loading pipe 28 when the catalyst cylinder 40 is replaced.

[0041] The above embodiment discloses a kind of adjustable intake mechanism and the methanol synthesis tower containing the mechanism, wherein synthesis gas conveying pipe 11 is used to transport synthesis gas, synthesis gas is divided into two and enters two first heat exchangers 20 inside, synthesis gas enters second heat exchanger 21 inside by first pipeline 22, synthesis gas forms a single path in first heat exchanger 20 and second heat exchanger 21, then synthesis gas enters methanol synthesis tower 24 inside by second pipeline 23, under the action of sealing turntable 32, so that the gas flow range is reduced, then synthesis gas enters loading pipe 28 inside, synthesis gas reacts with catalyst in catalyst cylinder 40, at the same time, external liquid supply component transports high-temperature heat-conducting medium to fixed ring 37 inside by liquid inlet pipe, fixed ring 37 and sealing block 38 form dynamic sealing ring, then high-temperature heat-conducting medium enters a plurality of spiral channels, then is discharged to liquid outlet pipe 39 inside by second conveying pipe, and one-way valve is mounted on second conveying pipe, so that high-temperature heat-conducting medium flows in spiral channel, so that catalyst is heated, reacted gas pushes sealing block 34 to slide, so that synthesis gas is discharged through third pipeline 25, synthesis gas reacts with catalyst in methanol synthesis tower 24 and is discharged through third pipeline 25 into second heat exchanger 21, synthesis gas enters first heat exchanger 20 inside by fourth pipeline 26, synthesis gas forms another single path in first heat exchanger 20 and second heat exchanger 21, then synthesis gas enters air cooler 27 inside, air cooler 27 cools synthesis gas;

[0042] When the reaction speed of the catalyst inside the methanol synthesis tower 24 with the synthesis gas slows down, the gas pressure inside the methanol synthesis tower 24 increases, so that the gas pressure inside the first heat exchanger 20 and the synthesis gas conveying pipe 11 increases at the same time, so that the one end of the sliding pipe of the adjusting pipe 12 slides inside the synthesis gas conveying pipe 11, the adjusting pipe 12 slides at the same time to drive the driving column 17 to move, the driving column 17 cooperates with the spiral groove on the spiral column 16, so that the spiral column 16 drives the adjusting rotating plate 15 to rotate, the adjusting rotating plate 15 blocks the air outlet on the fixed baffle 14, thereby reducing the air inlet amount inside the first heat exchanger 20;

[0043] When the catalyst cylinder 40 needs to be replaced, the switching disc 29 drives the loading pipe 28 to rotate to below the sealing cover 42, then the output end of the first electric cylinder 43 drives the sealing cover 42 to move, so that the sealing cover 42 is sleeved on one end of the loading pipe 28, then the limiting head 44 extends to one end of the catalyst cylinder 40, then the output end of the second electric cylinder 48 drives the mounting plate to slide, the mounting plate drives the limiting frame 45 to slide through the connecting rod 47, one end of the limiting frame 45 extends to outside of the limiting head 44, the limiting frame 45 cooperates with the fixed seat 41 to fix the catalyst cylinder 40, then the second electric motor 51 is started, the second electric motor 51 drives the threaded rod 50 to rotate, under the action of the screw, the pushing frame 49 drives the limiting head 44 to move, the limiting head 44 drives the catalyst cylinder 40 to move, so that the catalyst cylinder 40 is taken out for replacement.

[0044] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A methanol synthesis tower with an adjustable air intake mechanism, comprising a second heat exchanger (21) and a methanol synthesis tower (24), wherein the two second heat exchangers (21) and the methanol synthesis tower (24) are symmetrically arranged, the input ends of the two second heat exchangers (21) are respectively connected to the output ends of the two first heat exchangers (20) through first pipes (22), and the output ends of the two second heat exchangers (21) are respectively connected to second pipes (23), and the two second pipes (23) are respectively connected to the interior of the two methanol synthesis towers (24), characterized in that, The methanol synthesis tower (24) is equipped with a switching turntable (29) inside. The switching turntable (29) is arrayed with several mounting holes. Each mounting hole is equipped with a loading tube (28). The bottom end of each loading tube (28) is fixed with a fixing mesh plate. A catalyst cylinder (40) is slidably installed inside each loading tube (28). A sealing turntable (32) is provided above the switching turntable (29). The sealing turntable (32) rotates inside the methanol synthesis tower (24). The inner side of the loading tube (28) is hollow. A heating mechanism is provided inside the loading tube (28) to keep the switching turntable (29) in the middle constant temperature. The upper end of the methanol synthesis tower (24) is equipped with a disassembly and assembly mechanism to facilitate the replacement of the catalyst cylinder (40). Two first heat exchangers (20) are arranged symmetrically. The input end of each first heat exchanger (20) is connected to the output end of the syngas delivery pipe (11). A fixed baffle (14) is fixedly provided at one end of the syngas delivery pipe (11), and a connecting pipe is fixedly provided at the other end of the syngas delivery pipe (11). A sliding ring is slidably provided inside the connecting pipe. The sliding ring is fixedly provided at one end of the regulating pipe (12). A sliding pipe is fixedly provided at one end of the regulating pipe (12). The sliding pipe is slidably provided inside the syngas delivery pipe (11). An adjusting rotating plate (15) is closely attached to one side of the fixed baffle (14). A limiting ring is closely attached to the other side of the adjusting rotating plate (15). The limiting ring is fixedly provided inside the syngas delivery pipe (11). A driving mechanism for driving the adjusting rotating plate (15) to rotate is provided inside the syngas delivery pipe (11). The driving mechanism includes a spiral column (16), one end of which is fixedly provided with a connecting shaft. The connecting shaft is fixedly provided in the middle of one side of the adjusting plate (15). The spiral column (16) is provided with a spiral groove. A driving column (17) is slidably provided in the spiral groove. The driving column (17) is fixedly provided on a first support frame. The first support frame is fixedly provided inside the adjusting tube (12). A plurality of first guide slide rods are slidably arranged in an array on the sliding ring. The first guide slide rods are all fixedly provided inside the connecting tube. A plurality of first return springs (13) are provided between one side of the sliding ring and one end inside the connecting tube. The plurality of first return springs (13) are respectively coaxially arranged with the plurality of first guide slide rods.

2. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 1, characterized in that, The input end of the regulating pipe (12) is connected to a corrugated pipe (18), and the other end of the corrugated pipe (18) is connected to a fixed conveying pipe (19). A first holding pipe is fixedly provided on the fixed conveying pipe (19), and a second holding pipe is slidably provided inside the first holding pipe. The second holding pipe is fixedly provided at one end of the regulating pipe (12).

3. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 2, characterized in that, The bottom of each methanol synthesis tower (24) is connected to a third pipe (25). The other end of the third pipe (25) is connected to the other input end of the second heat exchanger (21). The other output end of the second heat exchanger (21) is connected to a fourth pipe (26). The other end of the fourth pipe (26) is connected to the other input end of the first heat exchanger (20). The other output end of the first heat exchanger (20) is connected to the input end of the air cooler (27).

4. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 3, characterized in that, The upper end of the switching turntable (29) is fixedly provided with a bevel ring (30), and a drive bevel gear is meshed on the bevel ring (30). A fixed frame is rotatably provided on the rotating shaft of one end of the drive bevel gear. The fixed frame is fixedly provided inside the methanol synthesis tower (24). The other end of the drive bevel gear extends to the outside of the methanol synthesis tower (24). The rotating shaft of one end of the drive bevel gear is fixedly connected to the output end of the first motor (31). The first motor (31) is fixedly provided inside the mounting box. The mounting box is fixedly provided on the methanol synthesis tower (24).

5. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 4, characterized in that, The heating mechanism includes a spiral plate (36), which is fixedly installed inside the loading pipe (28). The spiral plate (36) and the inner side of the loading pipe (28) are combined to form a spiral channel. The two ends of the spiral channel are respectively connected to a first conveying pipe and a second conveying pipe. Several first conveying pipes are respectively installed in the mounting holes inside the sealing ring (38). The sealing ring (38) rotates inside the fixed ring (37). The fixed ring (37) is fixed inside the methanol synthesis tower (24). The fixed ring (37) is connected to an inlet pipe. The second conveying pipes are all connected to one end of the drain pipe (39). One end of the drain pipe (39) extends to the outside of the methanol synthesis tower (24).

6. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 5, characterized in that, The disassembly and assembly mechanism includes a sealing cover (42) and a limiting head (44). The upper end of the sealing cover (42) is connected to a fixed tube. One end of the fixed tube is fixed with an extension plate. The extension plate is fixed on the output end of the first electric cylinder (43). The first electric cylinder (43) is fixed on the upper end of the methanol synthesis tower (24). The limiting head (44) is slidably disposed inside the fixed tube. The inside of the limiting head (44) is hollow. The limiting frame (45) is symmetrically slidably disposed inside the limiting head (44). The limiting frame (45) is slidably disposed on the limiting slide rod. The limiting slide rod is fixed inside the limiting head (44). A third return spring (46) is provided between one end of the limiting frame (45) and the inside of the limiting head (44). One end of the limiting frame (45) is hinged with a connecting rod (47). The other end of the connecting rod (47) is hinged to... The mounting plate is fixed at the bottom of the mounting plate and at the output end of the second electric cylinder (48). The second electric cylinder (48) is installed in the middle of the extension column. The extension column is fixed at the upper end of the limiting head (44). The extension column is fixed at one end of the pushing frame (49). The other end of the pushing frame (49) is provided with a sliding block and a threaded block. The sliding block is fixed on the second guide slide rod. The threaded block is set on the threaded rod (50) through the threaded hole. The threaded rod (50) rotates between the two support plates. The second guide slide rod is fixed between the two support plates. The support plates are all fixed on the methanol synthesis tower (24). One end of the threaded rod (50) is fixedly connected to the output end of the second motor (51). The second motor (51) is fixed at the bottom end of a support plate. One end of the catalyst cylinder (40) is fixedly provided with a fixing seat (41).

7. A methanol synthesis tower with an adjustable air inlet mechanism according to claim 6, characterized in that, The bottom end of each loading tube (28) is fixedly provided with a connecting seat (33). The bottom end of the connecting seat (33) is provided with a sealing groove. A sealing block (34) is slidably provided in the sealing groove. A fixing rod is fixedly provided at the bottom end of the sealing block (34). A second support frame is slidably provided on the fixing rod. The second support frame is fixedly provided at one end of the connecting seat (33). A second return spring (35) is provided between the bottom end of the sealing block (34) and the upper end of the second support frame.

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