CN220759164U - High-pressure esterification reaction kettle for preparing monoethyl maleate - Google Patents
High-pressure esterification reaction kettle for preparing monoethyl maleate Download PDFInfo
- Publication number
- CN220759164U CN220759164U CN202322228066.3U CN202322228066U CN220759164U CN 220759164 U CN220759164 U CN 220759164U CN 202322228066 U CN202322228066 U CN 202322228066U CN 220759164 U CN220759164 U CN 220759164U
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- China
- Prior art keywords
- esterification reaction
- reaction kettle
- pressure esterification
- bolt
- water pump
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- 238000005886 esterification reaction Methods 0.000 title claims abstract description 67
- XLYMOEINVGRTEX-ARJAWSKDSA-N Ethyl hydrogen fumarate Chemical compound CCOC(=O)\C=C/C(O)=O XLYMOEINVGRTEX-ARJAWSKDSA-N 0.000 title claims abstract description 16
- XLYMOEINVGRTEX-UHFFFAOYSA-N fumaric acid monoethyl ester Natural products CCOC(=O)C=CC(O)=O XLYMOEINVGRTEX-UHFFFAOYSA-N 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 44
- 239000000110 cooling liquid Substances 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims 1
- 235000020188 drinking water Nutrition 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 10
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 description 7
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- IRSJDVYTJUCXRV-UHFFFAOYSA-N ethyl 2-bromo-2,2-difluoroacetate Chemical compound CCOC(=O)C(F)(F)Br IRSJDVYTJUCXRV-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a high-pressure esterification reaction kettle for preparing maleic acid monoethyl ester, which comprises a high-pressure esterification reaction kettle main body, wherein the front side of the high-pressure esterification reaction kettle main body is connected with a controller through a bolt, an inner cavity of the high-pressure esterification reaction kettle main body is provided with a stirring mechanism, the right side of the high-pressure esterification reaction kettle main body is provided with a collecting mechanism, and the collecting mechanism comprises a storage box. According to the utility model, the motor, the first stirring rod, the second stirring rod, the gear, the fixed plate, the teeth and the limiting frame are adopted, so that substances in the high-pressure esterification reaction kettle main body can be conveniently stirred, the stirring range is large, and the collection cover, the condenser pipe, the cooling shell, the storage box, the first water pump, the electromagnetic valve, the cooling liquid tank, the semiconductor refrigerator and the second water pump are adopted, so that the objects evaporated in the high-pressure esterification reaction kettle main body can be conveniently collected, and the evaporated substances can be effectively prevented from drifting into the air.
Description
Technical Field
The utility model relates to the technical field of high-pressure esterification reaction kettles, in particular to a high-pressure esterification reaction kettle for preparing monoethyl maleate.
Background
The high-pressure reaction kettle is a typical innovation of a magnetic transmission device applied to reaction equipment, fundamentally solves the problem of leakage of a shaft seal which cannot be overcome by a packing seal and a mechanical seal in the past, has no leakage and pollution, and is the most ideal device for carrying out chemical reactions at high temperature and high pressure in China.
In the process of synthesizing the monoethyl maleate, the esterification reaction is the most critical step, and the esterification reaction is usually a reversible reaction, so that in order to carry out the reaction forward as much as possible, the reaction raw materials need to be fully mixed to achieve the optimal reaction efficiency.
Aiming at the esterification reaction, the utility model patent of patent application publication No. CN208512499U provides a high-pressure reaction kettle for preparing ethyl difluorobromoacetate, which comprises a kettle body, wherein the top of the kettle body is provided with a material inlet and a gas phase inlet, a hollow stirring shaft is arranged in the kettle body, the top of the stirring shaft is provided with a gas suction inlet, the lower side of the stirring shaft is connected with a disc stirring assembly communicated with the stirring shaft, the disc stirring assembly is symmetrically arranged by taking the stirring shaft as a center, the disc stirring assembly comprises a horizontal supporting rod and a plurality of stirring discs capable of rotating by taking the supporting rod as an axle center, the supporting rod is fixedly connected with the stirring shaft, the supporting rod is of a hollow structure, a plurality of first exhaust channels communicated with the supporting rod are arranged on the stirring discs, and the reaction gas flows along a plurality of planes in the kettle body, so that the gas flow distribution is quicker and more uniform, the gas-liquid contact area is large, thereby accelerating the chemical reaction speed, and enabling the chemical reaction to be more thorough.
However, the device still has some defects in actual use, and most obviously, in the use process of the device, the stirring range of the stirring rod is smaller, so that the stirring rod is inconvenient to stir internal articles, inconvenient for workers to use, incapable of collecting substances at the evaporation position, waste of resources and reduced applicability of the device.
Therefore, in order to efficiently prepare monoethyl maleate, it is necessary to invent a high-pressure esterification reactor for preparing monoethyl maleate to solve the above problems.
Disclosure of Invention
The utility model aims to provide a high-pressure esterification reaction kettle for preparing maleic acid monoethyl ester, which has the advantages of good stirring effect and convenience in recycling substances at an evaporation position, and solves the problems that the stirring range of a stirring rod is smaller, the stirring of internal objects is inconvenient, the substances at the evaporation position cannot be collected, and resources are wasted.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a preparation maleic acid monoethyl ester's high pressure esterification reaction cauldron, includes the high pressure esterification reaction cauldron main part, there is the controller in the front side of high pressure esterification reaction cauldron main part through bolted connection, the inner chamber of high pressure esterification reaction cauldron main part is provided with rabbling mechanism, the right side of high pressure esterification reaction cauldron main part is provided with collection mechanism, collection mechanism includes the bin, the top of bin is provided with condensing mechanism, condensing mechanism includes the cooling shell.
Preferably, the stirring mechanism comprises a motor, the bottom of motor is connected with the high-pressure esterification reaction kettle main part through the bolt, the transmission shaft of motor runs through to the inner chamber of high-pressure esterification reaction kettle main part and has first puddler through bolted connection, the surface rotation of first puddler is connected with the second puddler, one side that first puddler was kept away from to the second puddler has the gear through bolted connection, the inner chamber of high-pressure esterification reaction kettle main part has the fixed plate through bolted connection, the top welding of fixed plate has the tooth, gear and tooth meshing, controller and motor electric connection.
Preferably, the top of fixed plate is connected with the spacing through the bolt, the surface and the spacing sliding connection of second puddler.
Preferably, the collection mechanism comprises a collection cover, the bottom and the high-pressure esterification reaction kettle main part intercommunication of collection cover, the right side of high-pressure esterification reaction kettle main part is passed through the bolt and is connected with the bin, the top of collection cover is passed through the pipeline intercommunication and is had the condenser pipe, the right side of condenser pipe is passed through the pipeline and is linked together with the bin, the right side of bin is passed through the bolted connection and is had first water pump, the suction pipe of first water pump is passed through the pipeline and is linked together with the bin, the outlet pipe of first water pump is passed through the pipeline and is linked together with the solenoid valve, the left side of high-pressure esterification reaction kettle main part is passed through pipeline and is linked together with the high-pressure esterification reaction kettle main part, the condenser pipe is located the inner chamber of cooling shell, the controller respectively with first water pump and solenoid valve electric connection.
Preferably, the condensing mechanism comprises a cooling liquid tank, the bottom of cooling liquid tank is connected with the bin through the bolt, the front side at cooling liquid tank top has the semiconductor refrigerator through bolted connection, the refrigeration end of semiconductor refrigerator extends to the inner chamber of cooling liquid tank, the rear side at cooling liquid tank top has the second water pump through bolted connection, the water suction pipe of second water pump passes through pipeline and cooling liquid tank intercommunication, the outlet pipe of second water pump passes through pipeline and cooling shell intercommunication, the left side at cooling shell top passes through pipeline and cooling liquid tank intercommunication, the surface welding of high pressure esterification reaction cauldron main part has the go-between, the bottom of go-between has the supporting leg through bolted connection, the right side at go-between top has the bracing piece through bolted connection, and the top of bracing piece is passed through the bolt and is connected with the cooling shell, the controller respectively with semiconductor refrigerator and second water pump electric connection.
Preferably, the rear side intercommunication at cooling liquid case top has the water pipe that adds, and the top thread bush of water pipe is equipped with first tube cap, the right side intercommunication of cooling liquid case has the drain pipe, and the right side thread bush of drain pipe is equipped with the second tube cap.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the motor, the first stirring rod, the second stirring rod, the gear, the fixed plate, the teeth and the limiting frame are adopted, so that substances in the main body of the high-pressure esterification reaction kettle can be conveniently stirred, the stirring range is wide, and the stirring range is convenient for staff to use;
2. according to the utility model, the collection cover, the condensing tube, the cooling shell, the storage box, the first water pump, the electromagnetic valve, the cooling liquid tank, the semiconductor refrigerator and the second water pump are adopted, so that the objects evaporated in the high-pressure esterification reaction kettle main body can be conveniently collected, the evaporated substances can be effectively prevented from drifting into the air, and the resource waste can be effectively prevented.
Drawings
FIG. 1 is an isometric view of the structure of the present utility model;
FIG. 2 is a perspective view of the motor and stop of the present utility model;
FIG. 3 is a perspective view of the collection housing and solenoid valve of the present utility model;
fig. 4 is a perspective view of the cooling jacket and the second water pump of the present utility model.
In the figure: 1. a high pressure esterification reaction kettle main body; 2. a controller; 3. a motor; 4. a first stirring rod; 5. a second stirring rod; 6. a gear; 7. a fixing plate; 8. teeth; 9. a limiting frame; 10. a collection cover; 11. a condensing tube; 12. cooling the shell; 13. a storage tank; 14. a first water pump; 15. an electromagnetic valve; 16. a cooling liquid tank; 17. a semiconductor refrigerator; 18. a second water pump; 19. connecting the annular plates; 20. support legs; 21. a stirring mechanism; 22. a collection mechanism; 23. and a condensing mechanism.
Detailed Description
Referring to fig. 1-4, a high-pressure esterification reaction kettle for preparing monoethyl maleate comprises a high-pressure esterification reaction kettle main body 1, wherein a controller 2 is connected to the front side of the high-pressure esterification reaction kettle main body 1 through bolts, a stirring mechanism 21 is arranged in an inner cavity of the high-pressure esterification reaction kettle main body 1, a collecting mechanism 22 is arranged on the right side of the high-pressure esterification reaction kettle main body 1, the collecting mechanism 22 comprises a storage tank 13, a condensing mechanism 23 is arranged at the top of the storage tank 13, and the condensing mechanism 23 comprises a cooling shell 12.
The rabbling mechanism 21 includes motor 3, the bottom of motor 3 passes through the bolt and is connected with high-pressure esterification reaction kettle main part 1, motor 3's transmission shaft runs through to the inner chamber of high-pressure esterification reaction kettle main part 1 and has first puddler 4 through bolted connection, the surface rotation of first puddler 4 is connected with second puddler 5, one side that first puddler 4 was kept away from to second puddler 5 is through bolted connection there being gear 6, the inner chamber of high-pressure esterification reaction kettle main part 1 has fixed plate 7 through bolted connection, the top welding of fixed plate 7 has tooth 8, gear 6 and tooth 8 meshing, controller 2 and motor 3 electric connection, through setting up gear 6 and tooth 8, can be convenient for drive second puddler 5 and rotate, can be convenient for second puddler 5 stir the material.
The top of fixed plate 7 has spacing 9 through bolted connection, and the surface and the spacing 9 sliding connection of second puddler 5 through setting up spacing 9, can be convenient for carry out spacingly to second puddler 5, can be convenient for second puddler 5 stable rotation.
The collection mechanism 22 includes and collects cover 10, collect the bottom and the high-pressure esterification reaction kettle main part 1 intercommunication of cover 10, the right side of high-pressure esterification reaction kettle main part 1 is passed through the bolt and is connected with bin 13, the top of collecting cover 10 has condenser pipe 11 through the pipeline intercommunication, the right side of condenser pipe 11 passes through pipeline and bin 13 intercommunication, there is first water pump 14 on the right side of bin 13 through bolted connection, the suction pipe of first water pump 14 passes through pipeline and bin 13 intercommunication, the outlet pipe of first water pump 14 passes through pipeline intercommunication and has solenoid valve 15, the left side of high-pressure esterification reaction kettle main part 1 passes through pipeline and high-pressure esterification reaction kettle main part 1 intercommunication, condenser pipe 11 is located the inner chamber of cooling shell 12, controller 2 respectively with first water pump 14 and solenoid valve 15 electric connection, through setting up bin 13, can be convenient for store the material after the condensation, can be convenient for collect the material.
The condensing mechanism 23 includes cooling liquid tank 16, the bottom of cooling liquid tank 16 passes through the bolt to be connected with bin 13, the front side at cooling liquid tank 16 top has semiconductor refrigerator 17 through bolted connection, the refrigeration end at semiconductor refrigerator 17 extends to the inner chamber of cooling liquid tank 16, the rear side at cooling liquid tank 16 top has second water pump 18 through bolted connection, the suction pipe of second water pump 18 passes through pipeline and cooling liquid tank 16 intercommunication, the outlet pipe of second water pump 18 passes through pipeline and cooling shell 12 intercommunication, the left side at cooling shell 12 top passes through pipeline and cooling liquid tank 16 intercommunication, the surface welding of high-pressure esterification reaction kettle body 1 has go-between 19, there is supporting leg 20 at the bottom of go-between 19 through bolted connection, the right side at go-between 19 top has the bracing piece through bolted connection, the top of bracing piece passes through the bolt and is connected with cooling shell 12, controller 2 respectively with semiconductor refrigerator 17 and second water pump 18 electric connection, through setting up go-between 19 and supporting leg 20, can be convenient for support high-pressure esterification reaction body 1, can be convenient for keep stable supporting high-pressure esterification reaction body 1 through the bracing piece, can be convenient for keep stable cooling shell 12 through setting up, can be convenient for keep cooling shell 12 stable cooling shell.
The rear side intercommunication at cooling liquid case 16 top has the water pipe that adds, and the top thread bush of water pipe is equipped with first tube cover, and the right side intercommunication of cooling liquid case 16 has the drain pipe, and the right side thread bush of drain pipe is equipped with the second tube cover, through setting up the water pipe, can be convenient for add the coolant liquid in the cooling liquid case 16, through setting up the drain pipe, can be convenient for discharge the change of coolant liquid in the cooling liquid case 16.
During the use, the diethyl maleate that will evaporate is led into condenser pipe 11 through collecting cover 10, start semiconductor refrigerator 17 through controller 2, cool down the coolant in the coolant tank 16 through semiconductor refrigerator 17, start second water pump 18 through controller 2, take coolant in the coolant tank 16 and pour into cooling shell 12 through second water pump 18, cool down the diethyl maleate steam in condenser pipe 11 through cooling shell 12 and make it condense, the diethyl maleate after the condensation flows into bin 13 through the pipeline, if need to pour into diethyl maleate liquid back into high-pressure esterification reaction kettle main part 1 in, start first water pump 14 and start solenoid valve 15 through controller 2, take the diethyl maleate liquid out in the bin 13 through first water pump 14 and pour into high-pressure esterification reaction kettle main part 1 into, simultaneously start motor 3 through controller 2, drive first puddler 4 through the transmission shaft of motor 3, second puddler 5 and gear 6 rotate, and stir second puddler 5 and gear 6 through tooth 8 and stir, carry out the hydrolysis of ethyl maleate with first puddler 4 and second puddler 5, the hydrolysis of ethyl maleate is promoted to the second puddler.
To sum up: this preparation maleic acid monoethyl ester's high pressure esterification reaction cauldron, through connecting annular plate 19, supporting leg 20, rabbling mechanism 21, collection mechanism 22 and condensing mechanism 23, it is less to have solved puddler stirring scope, is inconvenient for stirring inside article, can not collect the material of evaporation department, can cause extravagant problem to the resource.
Claims (5)
1. The utility model provides a preparation maleic acid monoethyl ester's high pressure esterification reaction cauldron, includes high pressure esterification reaction cauldron main part (1), its characterized in that: the front side of the high-pressure esterification reaction kettle main body (1) is connected with a controller (2) through a bolt, the inner cavity of the high-pressure esterification reaction kettle main body (1) is provided with a stirring mechanism (21), the right side of the high-pressure esterification reaction kettle main body (1) is provided with a collecting mechanism (22), the collecting mechanism (22) comprises a storage box (13), the top of the storage box (13) is provided with a condensing mechanism (23), the condensing mechanism (23) comprises a cooling shell (12), the stirring mechanism (21) comprises a motor (3), the bottom of the motor (3) is connected with the high-pressure esterification reaction kettle main body (1) through a bolt, the transmission shaft of the motor (3) penetrates through the inner cavity of the high-pressure esterification reaction kettle body (1) and is connected with a first stirring rod (4) through a bolt, the surface of the first stirring rod (4) is rotationally connected with a second stirring rod (5), one side, far away from the first stirring rod (4), of the second stirring rod (5) is connected with a gear (6) through a bolt, the inner cavity of the high-pressure esterification reaction kettle body (1) is connected with a fixing plate (7) through a bolt, the top of the fixing plate (7) is welded with teeth (8), the gear (6) is meshed with the teeth (8), the controller (2) is electrically connected with the motor (3).
2. The high-pressure esterification reaction kettle for preparing monoethyl maleate according to claim 1, wherein: the top of fixed plate (7) is connected with spacing (9) through the bolt, the surface and the spacing (9) sliding connection of second puddler (5).
3. The high-pressure esterification reaction kettle for preparing monoethyl maleate according to claim 1, wherein: the utility model provides a collection mechanism (22) is including collecting cover (10), the bottom of collecting cover (10) communicates with high-pressure esterification reaction kettle main part (1), the right side of high-pressure esterification reaction kettle main part (1) is passed through the bolt and is connected with bin (13), there is condenser pipe (11) at the top of collecting cover (10) through the pipeline intercommunication, the right side of condenser pipe (11) is passed through pipeline and bin (13) intercommunication, there is first water pump (14) on the right side of bin (13) through bolted connection, the drinking-water pipe of first water pump (14) is passed through pipeline and bin (13) intercommunication, the outlet pipe of first water pump (14) is passed through pipeline intercommunication and is had solenoid valve (15), the left side of high-pressure esterification reaction kettle main part (1) is passed through pipeline and is connected with high-pressure esterification reaction kettle main part (1), condenser pipe (11) are located the inner chamber of cooling shell (12), controller (2) respectively with first water pump (14) and solenoid valve (15) electric connection.
4. The high-pressure esterification reaction kettle for preparing monoethyl maleate according to claim 1, wherein: the condensing mechanism (23) comprises a cooling liquid tank (16), the bottom of the cooling liquid tank (16) is connected with a storage tank (13) through a bolt, the front side of the top of the cooling liquid tank (16) is connected with a semiconductor refrigerator (17) through a bolt, the refrigerating end of the semiconductor refrigerator (17) extends to the inner cavity of the cooling liquid tank (16), the rear side of the top of the cooling liquid tank (16) is connected with a second water pump (18) through a bolt, a water suction pipe of the second water pump (18) is communicated with the cooling liquid tank (16) through a pipeline, a water outlet pipe of the second water pump (18) is communicated with a cooling shell (12) through a pipeline, the left side of the top of the cooling shell (12) is communicated with the cooling liquid tank (16) through a pipeline, a connecting ring plate (19) is welded on the surface of the high-pressure esterification reaction kettle body (1), the bottom of the connecting ring plate (19) is connected with a supporting leg (20) through a bolt, the right side of the top of the connecting ring plate (19) is connected with a supporting rod through a bolt, the top of the supporting rod is connected with the cooling shell (12) through a bolt and the cooling shell (12) and the second water pump (18) respectively.
5. The high-pressure esterification reaction kettle for preparing monoethyl maleate according to claim 4, wherein: the rear side intercommunication at cooling liquid case (16) top has the water pipe that adds, and the top thread bush of water pipe is equipped with first tube cap, the right side intercommunication of cooling liquid case (16) has the drain pipe, and the right side thread bush of drain pipe is equipped with the second tube cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228066.3U CN220759164U (en) | 2023-08-18 | 2023-08-18 | High-pressure esterification reaction kettle for preparing monoethyl maleate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228066.3U CN220759164U (en) | 2023-08-18 | 2023-08-18 | High-pressure esterification reaction kettle for preparing monoethyl maleate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220759164U true CN220759164U (en) | 2024-04-12 |
Family
ID=90611276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322228066.3U Active CN220759164U (en) | 2023-08-18 | 2023-08-18 | High-pressure esterification reaction kettle for preparing monoethyl maleate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220759164U (en) |
-
2023
- 2023-08-18 CN CN202322228066.3U patent/CN220759164U/en active Active
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