CN109925971B - Propionaldehyde hydrogenation device - Google Patents
Propionaldehyde hydrogenation device Download PDFInfo
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- CN109925971B CN109925971B CN201910328653.5A CN201910328653A CN109925971B CN 109925971 B CN109925971 B CN 109925971B CN 201910328653 A CN201910328653 A CN 201910328653A CN 109925971 B CN109925971 B CN 109925971B
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Abstract
The invention discloses a propionaldehyde hydrogenation device, which comprises a reaction bed shell, an air inlet pipe, an air outlet pipe and a temperature detection device, wherein the air inlet pipe and the air outlet pipe are respectively and fixedly communicated with the top and one side of the outer side of the reaction bed shell, first temperature sensors are respectively installed and fixed in the air inlet pipe and the air outlet pipe, and the temperature detection device is fixedly installed in the reaction bed shell.
Description
Technical Field
The invention relates to the technical field of reaction for hydrogenating propionaldehyde into alcohol, in particular to a propionaldehyde hydrogenation device.
Background
The oxo process is also called hydroformylation, in which an olefin, carbon monoxide and hydrogen are added simultaneously with a hydrogen atom and a formyl group to an olefin double bond under the action of a catalyst to produce two isomeric aldehydes having one more carbon atom than the original olefin.
In the propionaldehyde hydrogenation reaction, raw material gas purification, propanol synthesis, propanol cooling, propanol rectification and other steps are mainly carried out, in the propanol synthesis process, ten catalyst bed layers are provided, namely 10 reactors are connected in series, the temperature of each catalyst bed layer is controlled by controlling propionaldehyde, cold hydrogen and hot hydrogen, the reaction temperature of each bed layer ranges from 110 ℃ to 157 ℃, the uppermost part is 110 ℃, and the bottommost part is 157 ℃, so that the temperature requirements of an inlet and an outlet of each catalyst bed are very strict, temperature detection devices are usually required to be arranged at the inlet and the outlet to detect the temperature in real time, but the other positions of the catalyst beds cannot be effectively detected, the inlet and the outlet have large changes, and the actual temperature of the catalyst beds cannot be accurately reflected, so that the propionaldehyde hydrogenation device is provided.
Disclosure of Invention
The present invention aims to provide a propionaldehyde hydrogenation device to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a propionaldehyde hydrogenation device, includes reaction bed shell, intake pipe, outlet duct and temperature-detecting device, intake pipe and outlet duct are fixed respectively and are communicate in reaction bed shell outside top and one side, and all install in intake pipe and the outlet duct and be fixed with a temperature sensor, temperature-detecting device fixed mounting is in reaction bed shell.
Preferably, temperature-detecting device comprises fixed plectane, driving piece, first detection device, second detection device, L type slide rail and connecting plate, fixed plectane is installed on reaction bed shell inner wall, and the driving piece fixes on reaction bed shell top inner wall, first detection device and second detection device all are equipped with two, and distribute and install around the driving piece, the driving piece both ends are connected with two first detection device, first detection device and second detection device pass through the connecting plate fixedly, L type slide rail is equipped with two, and symmetric distribution installs on fixed plectane, first detection device and second detection device all with L type slide rail sliding connection.
Preferably, the driving piece comprises driving motor, drive gear, driven gear, spliced pole, actuating lever and connecting rod, driving motor fixes on reaction bed shell bottom is inside, and the driving motor output is fixed with drive gear, the spliced pole both ends are passed through the bearing and are rotated in reaction bed shell bottom inner wall and fixed plectane respectively and are connected, and driven gear fixed cover is in the spliced pole outside, driven gear and drive gear meshing, the actuating lever is fixed in the spliced pole outside, the connecting rod is equipped with two, and two connecting rods are all rotated through round pin axle and actuating lever both ends and are connected, and two connecting rod other ends are connected with two first detection device one ends through the round pin axle.
Preferably, first detection device and second detection device constitute by T type track board, screens shell, fixed plate, semi-circular slide, plummer and slider, T type track board is fixed on fixed plectane, and screens shell sliding sleeve is in the T type track board outside, the connecting rod is kept away from actuating lever one end and is rotated with screens shell top through the round pin axle and be connected, semi-circular slide is located L type slide, and with L type slide sliding connection, fixed plate one side is fixed with connecting plate one end, semi-circular slide is fixed in screens shell one side through the fixed plate, and has opened the removal mouth in the semi-circular slide, the slider is located the removal mouth, and with removal mouth sliding connection, the plummer is located semi-circular slide and keeps away from fixed plate one side, and the plummer is fixed with slider one end.
Preferably, the sliding grooves are symmetrically formed in one side of each of two ends of the semicircular sliding plate, a plurality of sliding parts are fixed in the sliding grooves at equal intervals, each sliding part comprises a roller and a rolling shaft, the roller is fixedly sleeved on the outer side of the rolling shaft, two ends of the rolling shaft are rotatably connected with the inner walls of two sides of the sliding grooves through bearings, and the outer side of the roller is in contact with the inner walls of the L-shaped sliding rails.
Preferably, it has the detection groove and is fixed with the removal post to open on the plummer, it has four arc spout to correspond to open on the fixed plectane, remove the post outside and arc spout sliding connection, and detect and install the second temperature sensor in the groove.
Preferably, a plurality of circular openings are formed in the bearing table, balls are mounted in the circular openings, and the outer sides of the balls are in contact with the inner wall of each circular opening and the outer side of each fixed circular plate respectively.
Preferably, the second temperature sensor is in contact with the outer side of the fixed circular plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the temperature detection device can effectively detect the temperature of each part in the reaction bed, thereby effectively detecting the change trend of the temperature in the reaction bed, and when the temperature has the trend of exceeding the limit temperature or being lower than the limit temperature, the temperature of the catalyst bed layer can be controlled in advance by introducing cold hydrogen or hot hydrogen, thereby effectively avoiding the influence of the temperature in the reaction bed exceeding the adaptive temperature range on the reaction efficiency.
2. The bearing table is provided with a plurality of circular openings, the balls are arranged in the circular openings, the temperature in the reaction bed is detected through the second temperature sensor on the bearing table, and the friction force generated by movement can be effectively reduced through the balls.
Drawings
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic view of the structure of the internal fixed circular plate according to the present invention;
FIG. 3 is a schematic structural diagram of an internal temperature detection device according to the present invention;
FIG. 4 is a schematic bottom view of the present invention;
FIG. 5 is a schematic structural diagram of a first detecting device and a second detecting device according to the present invention;
FIG. 6 is a schematic view of a driving member according to the present invention;
FIG. 7 is a partial cross-sectional view of the semi-circular slider of the present invention;
fig. 8 is an enlarged view of fig. 7 at a.
In the figure: 1-a reaction bed housing; 2, an air inlet pipe; 3-air outlet pipe; 4-temperature detection means; 5-a first temperature sensor; 6-fixing the circular plate; 7-a drive member; 8-a first detection device; 9-a second detection device; a 10-L shaped slide rail; 11-a connecting plate; 12-a drive motor; 13-a drive gear; 14-a driven gear; 15-connecting column; 16-a drive rod; 17-a connecting rod; 18-T track boards; 19-a clamping shell; 20-fixing the plate; 21-semicircular sliding plate; 22-a carrier table; 23-a slide block; 24-a moving port; 25-a sliding groove; 26-a slide; 27-a roller; 28-a roller; 29-detection tank; 30-a moving column; 31-arc sliding port; 32-a second temperature sensor; 33-circular mouth; 34-a ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, in the figure, a propionaldehyde hydrogenation apparatus comprises a reaction bed shell 1, an air inlet pipe 2, an air outlet pipe 3 and a temperature detection device 4, wherein the air inlet pipe 2 and the air outlet pipe 3 are respectively and fixedly communicated with the top and one side of the outer side of the reaction bed shell 1, first temperature sensors 5 are respectively and fixedly installed in the air inlet pipe 2 and the air outlet pipe 3, the temperature detection device 4 is fixedly installed in the reaction bed shell 1, and the temperature in the reaction bed can be monitored in real time through the temperature detection device 4, so that the temperature change trend in the reaction bed can be detected in advance, and cold hydrogen and hot hydrogen are charged in advance to control the temperature.
Temperature-detecting device 4 comprises fixed plectane 6, driving piece 7, first detection device 8, second detection device 9, L type slide rail 10 and connecting plate 11, fixed plectane 6 is installed on 1 inner wall of reaction bed shell, and driving piece 7 fixes on 1 top inner wall of reaction bed shell, first detection device 8 and second detection device 9 all are equipped with two, and distribute and install around driving piece 7, driving piece 7 both ends are connected with two first detection device 8, first detection device 8 and second detection device 9 are fixed through connecting plate 11, L type slide rail 10 is equipped with two, and symmetric distribution installs on fixed plectane 6, first detection device 8 and second detection device 9 all with L type slide rail 10 sliding connection, realize temperature-detecting through temperature-detecting device 4.
The specific implementation method comprises the following steps: rotate through driving motor 12, drive with it output drive gear 13 and rotate to make driven gear 14 rotate, because driven gear 14 is fixed with spliced pole 15, thereby make spliced pole 15 rotate, and drive the actuating lever 16 of fixing with spliced pole 15 and rotate, because actuating lever 16 both ends are connected with two connecting rods 17 through the round pin hub rotation, through the connecting rod motion, thereby drive the first detection device 8 removal of the connecting rod 17 other end, the realization is to each regional temperature detection in the reaction bed.
Referring to fig. 1-8, the first detecting device 8 and the second detecting device 9 are both composed of a T-shaped track plate 18, a locking shell 19, a fixing plate 20, a semicircular sliding plate 21, a bearing platform 22 and a sliding block 23, the T-shaped track plate 18 is fixed on the fixed circular plate 6, the locking shell 19 is slidably sleeved outside the T-shaped track plate 18, one end of the connecting rod 17 away from the driving rod 16 is rotatably connected with the top of the locking shell 19 through a pin shaft, the semicircular sliding plate 21 is located in the L-shaped sliding rail 10 and slidably connected with the L-shaped sliding rail 10, one side of the fixing plate 20 is fixed with one end of the connecting plate 11, the semicircular sliding plate 21 is fixed on one side of the locking shell 19 through the fixing plate 20, the semicircular sliding plate 21 is provided with a moving opening 24, the sliding block 23 is located in the moving opening 24 and slidably connected with the moving opening 24, the bearing platform 22 is located on one side of the semicircular sliding plate 21 away, and plummer 22 is fixed with slider 23 one end, passes through connecting plate 11 fixed connection through first detection device 8 and second detection device 9 to remove through first detection device 8, drive second detection device 9 synchronous motion.
It has detection groove 29 and is fixed with and removes post 30 to open on plummer 22, it has four arc sliding outlets 31 to correspond to open on the fixed plectane 6, remove the post 30 outside and arc sliding outlets 31 sliding connection, and install second temperature sensor 32 in detecting groove 29, detect the interior temperature of reaction bed through second temperature sensor 32.
The specific implementation method comprises the following steps: the connecting rod 17 is driven to move by the rotation of the driving rod 16, because one end of the connecting rod 17 far away from the driving rod 16 is rotatably connected with the top of the clamping shell 19 in the first detection device 8, and the clamping shell 19 is slidably connected with the T-shaped track plate 18, the clamping shell 19 is driven to slide on the T-shaped track plate 18 by the movement of the connecting rod 17, because one side of the clamping shell 19 is connected with the semicircular sliding plate 21 by the fixing plate 20, the semicircular sliding plate 21 is driven to move in the L-shaped slide rail 10, the semicircular sliding plate 21 is more smooth when sliding by the sliding part 26 in the semicircular sliding plate 21, because the bearing platform 22 is slidably connected with the moving port 24 on the semicircular sliding plate 21 by the sliding block 23, and the moving column 30 is installed on the bearing platform 22 and is slidably connected with the arc-shaped sliding port 31 on the fixed circular plate 6 by the moving column 30, at this time, the bearing platform 22 is driven to move in the moving port, the second temperature sensor 32 on the susceptor 22 is enabled to effectively detect a wide range of areas on the reaction bed.
The bearing table 22 is provided with a plurality of circular openings 33, the balls 34 are arranged in the circular openings 33, the outer sides of the balls 34 are respectively contacted with the inner wall of the circular opening 33 and the outer side of the fixed circular plate 6, and the friction force generated by movement can be effectively reduced through the balls 34.
The second temperature sensor 32 is in contact with the outer side of the fixed disk 6, and the temperature detected by the second temperature sensor 32 is limited.
In the scheme, the first temperature sensor 5 is preferably JASUN-LT001, the second temperature sensor 32 is preferably SMB-AQ1-00, the driving motor 12 is preferably Y100L-2, the motor operation circuit is a normal and reverse rotation control program of a conventional motor, the circuit operation is a conventional circuit, the circuits and control related to the invention are the prior art, and redundant description is not repeated herein.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a propionaldehyde hydrogenation device, includes reaction bed shell (1), intake pipe (2), outlet duct (3) and temperature-detecting device (4), its characterized in that: the gas inlet pipe (2) and the gas outlet pipe (3) are respectively fixedly communicated with the top and one side of the outer side of the reaction bed shell (1), a first temperature sensor (5) is fixedly arranged in the gas inlet pipe (2) and the gas outlet pipe (3), the temperature detection device (4) is fixedly arranged in the reaction bed shell (1), the temperature detection device (4) consists of a fixed circular plate (6), a driving piece (7), a first detection device (8), a second detection device (9), an L-shaped sliding rail (10) and a connecting plate (11), the fixed circular plate (6) is arranged on the inner wall of the reaction bed shell (1), the driving piece (7) is fixed on the inner wall of the top of the reaction bed shell (1), the first detection device (8) and the second detection device (9) are respectively provided with two, and are distributed and arranged around the driving piece (7), the two ends of the driving piece (7) are connected with the two first detection devices (8), the first detection device (8) and the second detection device (9) are fixed through a connecting plate (11), the number of the L-shaped slide rails (10) is two, the two L-shaped slide rails are symmetrically arranged on the fixed circular plate (6), the first detection device (8) and the second detection device (9) are both in sliding connection with the L-shaped slide rails (10), the first detection device (8) and the second detection device (9) are both composed of a T-shaped track plate (18), a clamping shell (19), a fixed plate (20), a semicircular sliding plate (21), a bearing table (22) and a sliding block (23), the T-shaped track plate (18) is fixed on the fixed circular plate (6), the clamping shell (19) is slidably sleeved outside the T-shaped track plate (18), one end, far away from the driving rod (16), of the connecting rod (17) is rotatably connected with the top of the clamping shell (19) through a pin shaft, and the semicircular sliding plate (21) is located in the L-shaped slide rails (10), and with L type slide rail (10) sliding connection, fixed plate (20) one side is fixed with connecting plate (11) one end, semi-circular slide (21) are fixed in screens shell (19) one side through fixed plate (20), and have opened removal mouth (24) in semi-circular slide (21), slider (23) are located removal mouth (24), and with removal mouth (24) sliding connection, plummer (22) are located semi-circular slide (21) and keep away from fixed plate (20) one side, and plummer (22) are fixed with slider (23) one end.
2. The propanal hydrogenation apparatus of claim 1, wherein: the driving piece (7) consists of a driving motor (12), a driving gear (13), a driven gear (14), a connecting column (15), a driving rod (16) and a connecting rod (17), the driving motor (12) is fixed on the inner part of the bottom of the reaction bed shell (1), the output end of the driving motor (12) is fixed with the driving gear (13), the two ends of the connecting column (15) are respectively and rotatably connected with the inner wall of the bottom of the reaction bed shell (1) and the fixed circular plate (6) through bearings, and the driven gear (14) is fixedly sleeved outside the connecting column (15), the driven gear (14) is meshed with the driving gear (13), the driving rod (16) is fixed at the outer side of the connecting column (15), two connecting rods (17) are arranged, and one ends of the two connecting rods (17) are rotatably connected with the two ends of the driving rod (16) through pin shafts, and the other ends of the two connecting rods (17) are connected with one ends of the two first detection devices (8) through pin shafts.
3. The propanal hydrogenation apparatus of claim 2, wherein: semicircular slide board (21) both ends one side symmetry is opened there are sliding tray (25), and the equidistance is fixed with a plurality of sliders (26) in sliding tray (25), slider (26) comprise gyro wheel (27) and roller shaft (28), gyro wheel (27) fixed cover is in the roller shaft (28) outside, and roller shaft (28) both ends pass through the bearing and are connected with sliding tray (25) both sides inner wall rotation, gyro wheel (27) outside and L type slide rail (10) inner wall contact.
4. The propanal hydrogenation apparatus of claim 3, wherein: it has detection groove (29) and is fixed with and removes post (30) to open on plummer (22), it has four arc spout (31) to correspond to open on fixed plectane (6), remove post (30) outside and arc spout (31) sliding connection, and install second temperature sensor (32) in detecting groove (29).
5. The propanal hydrogenation apparatus of claim 4, wherein: a plurality of round openings (33) are formed in the bearing table (22), balls (34) are mounted in the round openings (33), and the outer sides of the balls (34) are respectively in contact with the inner wall of the round opening (33) and the outer side of the fixed circular plate (6).
6. The propanal hydrogenation apparatus of claim 5, wherein: the second temperature sensor (32) is in contact with the outer side of the fixed circular plate (6).
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| CN201910328653.5A CN109925971B (en) | 2019-04-23 | 2019-04-23 | Propionaldehyde hydrogenation device |
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| CN201910328653.5A CN109925971B (en) | 2019-04-23 | 2019-04-23 | Propionaldehyde hydrogenation device |
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| CN109925971B true CN109925971B (en) | 2021-07-09 |
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| US7261749B2 (en) * | 2002-09-05 | 2007-08-28 | General Motors Corporation | Multi-port autothermal reformer |
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| CN2237046Y (en) * | 1995-09-19 | 1996-10-09 | 安徽省应用技术研究所 | Fatty acid hydrogenation reaction chamber |
| CN1822895A (en) * | 2003-07-14 | 2006-08-23 | 三菱丽阳株式会社 | Fixed bed multitube reactor |
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