CN215611426U - Improved generation N-methylaniline reaction unit - Google Patents
Improved generation N-methylaniline reaction unit Download PDFInfo
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- CN215611426U CN215611426U CN202122061163.9U CN202122061163U CN215611426U CN 215611426 U CN215611426 U CN 215611426U CN 202122061163 U CN202122061163 U CN 202122061163U CN 215611426 U CN215611426 U CN 215611426U
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- pipe
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- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methylaniline Chemical compound CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000006200 vaporizer Substances 0.000 claims abstract description 31
- 239000012071 phase Substances 0.000 claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 14
- 239000007791 liquid phase Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000012546 transfer Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000011364 vaporized material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses an improved N-methylaniline reaction device, which comprises a vaporizer, a reactor, a filter and a partial condenser, wherein an inlet at the bottom of the vaporizer is connected and communicated with a feed pipe; an outlet at the top of the vaporizer is connected and communicated with an inlet of the filter through a vaporizer gas phase outlet pipe; a sewage discharge outlet at the bottom of the filter is connected and communicated with a sewage discharge pipe; the outlet at the top of the filter is connected and communicated with the inlet at the bottom of the reactor through the outlet pipe of the filter; an outlet at the top of the reactor is connected and communicated with an inlet at the top of the partial condenser through an outlet pipe of the reactor; an outlet at the top of the partial condenser is connected and communicated with a gas phase outlet pipe; the condensation port at the bottom of the dephlegmator is connected and communicated with the liquid phase outlet pipe through a sight glass. The utility model simplifies the flow, facilitates the operation, is more beneficial to the heat transfer, improves the filter, reduces the speed of the material passing through the filter, and well blocks the tar, thereby achieving the effect of not influencing the service life of the catalyst.
Description
Technical Field
The utility model relates to an N-methylaniline reaction device, in particular to an improved N-methylaniline reaction device.
Background
Many petrochemical enterprises in China exist, and many reaction devices in the form of a shape are also available. The original reaction device is continuously explored in the actual use, and some contradictions are still exposed. With the development of science and technology, people have higher and higher requirements on refined production, and particularly, the innovation of equipment and technology is also changed day by day. Under such circumstances, enterprises have been perfecting facilities such as self-production in order to improve conditions and survive. The company diagnoses the original process and equipment on the original basis, and meanwhile continuously performs school-enterprise cooperation so as to improve the production conditions and improve the production efficiency.
The prior art process and installation (see fig. 1) comprising a vaporizer, a filter, a reactor, a separator and a dephlegmator, have the following disadvantages:
1. the filter of the original design is arranged at the top of the vaporizer, and the filter cannot be too large due to position limitation and maintenance requirements, so that the filtering effect is influenced, tar is often brought to the reactor, and the normal production and the service life of the catalyst are influenced;
2. the vaporized materials enter from the top of the reaction, and the heat transfer is not in accordance with the rule of heat transfer, so that the heat transfer is easy to generate unevenness;
3. the original separator does not play a role in actual production.
Therefore, there is a need for a novel, more efficient, less energy consuming, higher throughput, and easily controllable reaction apparatus.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to overcome the defects and provides an improved N-methylaniline reaction device, and by adopting the technical scheme of the utility model, the process is simplified, the operation is convenient, the heat transfer is more favorably realized, the production efficiency is greatly improved, in addition, the filter is improved, the speed of materials passing through the filter is reduced, the tar is well blocked, and the effect of not influencing the service life of the catalyst is achieved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to an improved N-methylaniline reaction device, which comprises a vaporizer, a reactor, a filter and a partial condenser, wherein an inlet at the bottom of the vaporizer is connected and communicated with a feeding pipe; the outlet at the top of the vaporizer is connected and communicated with the inlet of the filter through a vaporizer gas phase outlet pipe; a sewage discharge outlet at the bottom of the filter is connected and communicated with a sewage discharge pipe; the outlet at the top of the filter is connected and communicated with the inlet at the bottom of the reactor through the outlet pipe of the filter; an outlet at the top of the reactor is connected and communicated with an inlet at the top of the partial condenser through an outlet pipe of the reactor; an outlet at the top of the partial condenser is connected and communicated with a gas phase outlet pipe; and a condensation port at the bottom of the dephlegmator is connected and communicated with the liquid phase outlet pipe through a sight glass.
More closely, the filter comprises a filter tank body, and an upper filter sealing head and a lower filter sealing head which are fixedly arranged at two ends of the filter tank body, wherein a filter assembly is fixedly arranged in the filter tank body, and the filter assembly divides the interior of the filter into a lower region to be filtered and an upper filtered region; a filtering inlet is formed in the position, on the filter tank body, of the lower region to be filtered; a sewage draining outlet is formed in the bottom of the lower end socket of the filter; the top of the filter upper end socket is provided with a filtering outlet.
More closely, the filtration inlet is connected and communicated with a vaporizer gas phase outlet pipe through an elbow pipe, wherein the bending degree of the elbow pipe is 18-23 degrees downwards, and the vaporizer gas phase outlet pipe and the elbow pipe form an included angle of 140-165 degrees downwards.
More closely, be provided with on the filter tank body for with last filtered district intercommunication the manhole with be used for with the lower manhole that waits the filter district intercommunication.
More closely, the upper end terminal surface of filtering component be the slope setting, filtering component's lower extreme terminal surface is the level setting.
More closely, the filtering component include apron and upper cover plate down, apron and upper cover plate down between be provided with down silk screen, filter screen, the last silk screen that sets gradually from up down.
Furthermore, the lower end socket of the filter is connected with the lower end of the filter tank body through a flange; the filter lower end socket is provided with at least three support legs.
Furthermore, a drain valve is arranged on the drain pipe.
Furthermore, a control valve is arranged on the liquid phase outlet pipe.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
(1) compared with the existing N-methylaniline reaction device, the improved N-methylaniline reaction device cancels a separator without actual effect, simplifies the flow and is convenient to operate;
(2) according to the improved N-methylaniline reaction device, the outlet at the top of the filter is connected and communicated with the inlet at the bottom of the reactor through the outlet pipe of the filter, the outlet at the top of the reactor is connected and communicated with the inlet at the top of the partial condenser through the outlet pipe of the reactor, and vaporized materials enter the reactor from the bottom of the reactor, so that heat transfer is facilitated;
(3) the utility model relates to an improved N-methylaniline reaction device, wherein a filter comprises a filter tank body, an upper filter sealing head and a lower filter sealing head which are fixedly arranged at two ends of the filter tank body, a filter assembly is fixedly arranged in the filter tank body and divides the interior of the filter into a lower to-be-filtered area and an upper filtered area, a filter inlet is arranged on the filter tank body and positioned at the lower to-be-filtered area, a sewage discharge outlet is arranged at the bottom of the lower filter sealing head, and a filter outlet is arranged at the top of the upper filter sealing head;
(4) according to the improved N-methylaniline reaction device, the filtering inlet is connected and communicated with the gas phase outlet pipe of the vaporizer through the elbow pipe, the curvature of the elbow pipe is 18-23 degrees downwards, the gas phase outlet pipe of the vaporizer and the elbow pipe form an included angle of 140-165 degrees downwards, materials vaporized at the vaporizer centrifugally enter the filter, and the filtering effect is better.
Drawings
FIG. 1 is a schematic structural view of a conventional N-methylaniline reaction apparatus;
FIG. 2 is a schematic structural view of an improved N-methylaniline reaction apparatus according to the present invention;
FIG. 3 is a schematic diagram showing the structure of a filter in an improved N-methylaniline reaction apparatus according to the present invention.
The reference numerals in the schematic drawings illustrate: 1. a feed pipe; 2. a vaporizer; 3. a vaporizer gas phase outlet pipe; 4. a filter; 4-1, a filter tank body; 4-2, sealing the upper end of the filter; 4-3, sealing the lower end of the filter; 4-4, bending the pipe; 4-5, a lower cover plate; 4-6, laying a silk screen; 4-7, a filter screen; 4-8, winding a silk screen; 4-9, an upper cover plate; 4-10, upper manhole; 4-11, placing a manhole; 4-12, supporting legs; 5. a filter outlet tube; 6. a reactor; 7. a reactor outlet pipe; 8. a dephlegmator; 9. a gas phase outlet pipe; 10. a sight glass; 11. a liquid phase outlet pipe; 12. a control valve; 13. a blow-off pipe; 14. a blowoff valve.
Detailed Description
For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Examples
Referring to fig. 2, the improved reaction apparatus for N-methylaniline of this embodiment comprises a vaporizer 2, a reactor 6, a filter 4 and a partial condenser 8, wherein an inlet at the bottom of the vaporizer 2 is connected and communicated with a feed pipe 1; the outlet at the top of the vaporizer 2 is connected and communicated with the inlet of the filter 4 through a vaporizer gas phase outlet pipe 3; a sewage discharge port at the bottom of the filter 4 is connected and communicated with a sewage discharge pipe 13, and a sewage discharge valve 14 is arranged on the sewage discharge pipe 13; the outlet at the top of the filter 4 is connected and communicated with the inlet at the bottom of the reactor 6 through a filter outlet pipe 5; an outlet at the top of the reactor 6 is connected and communicated with an inlet at the top of the partial condenser 8 through an outlet pipe 7 of the reactor; an outlet at the top of the partial condenser 8 is connected and communicated with a gas phase outlet pipe 9; the condensation port at the bottom of the partial condenser 8 is connected and communicated with a liquid phase outlet pipe 11 through a sight glass 10, and a control valve 12 is arranged on the liquid phase outlet pipe 11.
Compared with the existing N-methylaniline reaction device, the improved N-methylaniline reaction device cancels a separator without actual effect, simplifies the flow and is convenient to operate; in addition, the outlet at the top of the filter is connected and communicated with the inlet at the bottom of the reactor through the outlet pipe of the filter, and the outlet at the top of the reactor is connected and communicated with the inlet at the top of the partial condenser through the outlet pipe of the reactor, so that the vaporized materials enter the reactor from the bottom of the reactor, and the heat transfer is facilitated.
In another preferred embodiment, the filter is improved, as shown in fig. 3, the filter 4 comprises a filter tank body 4-1, and an upper filter head 4-2 and a lower filter head 4-3 which are fixedly arranged at two ends of the filter tank body 4-1, and the top of the upper filter head 4-2 is provided with a filtering outlet; the lower end socket 4-3 of the filter is connected with the lower end of the filter tank body 4-1 through a flange; at least three support legs 4-12 are arranged on the lower end socket 4-3 of the filter, particularly in the embodiment; three support legs 4-12 are arranged on the lower end socket 4-3 of the filter; a sewage draining outlet is formed at the bottom of the lower end socket 4-3 of the filter; a filter assembly is fixedly arranged in the filter tank body 4-1 and divides the interior of the filter 4 into a lower region to be filtered and an upper filtered region; a filtering inlet is arranged on the filter tank body 4-1 and positioned at the lower region to be filtered; by adopting the filter with the structure, the speed of the materials passing through the filter is reduced by increasing the volumes of the lower to-be-filtered area and the upper filtered area, and tar is blocked well, so that the effect of not influencing the service life of the catalyst is achieved;
in another preferred embodiment, continuing to fig. 3, the filtering inlet is connected and communicated with the vaporizer gas phase outlet pipe 3 through an elbow 4-4, wherein the elbow 4-4 has a curvature of 18 ° to 23 ° downward, the vaporizer gas phase outlet pipe 3 and the elbow 4-4 form an included angle of 140 ° to 165 ° downward, so that the material vaporized by the vaporizer enters the filter centrifugally, the filtering effect is better, specifically, the elbow 4-4 has a curvature of 18 ° downward or 20 ° downward or 23 °, and the vaporizer gas phase outlet pipe 3 and the elbow 4-4 form an included angle of 140 ° downward or 152 ° downward or 165 °.
In another preferred embodiment, continuing with FIG. 3, for ease of cleaning, the filter tank body 4-1 is provided with an upper manhole 4-10 for communication with the upper filtered area and a lower manhole 4-11 for communication with the lower to-be-filtered area.
In another preferred embodiment, referring to fig. 3, the upper end surface of the filter assembly is inclined, and the lower end surface of the filter assembly is horizontal, so as to facilitate the collection of the liquid phase; the filtering component comprises a lower cover plate 4-5 and an upper cover plate 4-9, wherein a lower screen 4-6, a filter screen 4-7 and an upper screen 4-8 are arranged between the lower cover plate 4-5 and the upper cover plate 4-9 in sequence from bottom to top, and the lower cover plate 4-5, the lower screen 4-6, the filter screen 4-7, the upper screen 4-8 and the upper cover plate 4-9 are fixedly connected into a whole.
The improved N-methylaniline reaction device simplifies the flow, is convenient to operate, is more beneficial to heat transfer, improves the filter, reduces the speed of materials passing through the filter, and well intercepts tar, thereby achieving the effect of not influencing the service life of the catalyst.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (9)
1. An improved generation N-methylaniline reaction unit which characterized in that: the device comprises a vaporizer (2), a reactor (6), a filter (4) and a partial condenser (8), wherein an inlet at the bottom of the vaporizer (2) is connected and communicated with a feeding pipe (1); an outlet at the top of the vaporizer (2) is connected and communicated with an inlet of the filter (4) through a vaporizer gas phase outlet pipe (3); a sewage draining outlet at the bottom of the filter (4) is connected and communicated with a sewage draining pipe (13); the outlet at the top of the filter (4) is connected and communicated with the inlet at the bottom of the reactor (6) through a filter outlet pipe (5); an outlet at the top of the reactor (6) is connected and communicated with an inlet at the top of the partial condenser (8) through an outlet pipe (7) of the reactor; an outlet at the top of the partial condenser (8) is connected and communicated with a gas phase outlet pipe (9); and a condensation port at the bottom of the partial condenser (8) is connected and communicated with a liquid phase outlet pipe (11) through a sight glass (10).
2. An improved N-methylaniline reactor as defined in claim 1 wherein: the filter (4) comprises a filter tank body (4-1), and an upper filter sealing head (4-2) and a lower filter sealing head (4-3) which are fixedly arranged at two ends of the filter tank body (4-1), wherein a filter assembly is fixedly arranged in the filter tank body (4-1), and divides the interior of the filter (4) into a lower region to be filtered and an upper filtered region; a filtering inlet is arranged on the filter tank body (4-1) and positioned at the lower region to be filtered; a sewage draining outlet is formed in the bottom of the lower end socket (4-3) of the filter; the top of the filter upper end socket (4-2) is provided with a filtering outlet.
3. An improved N-methylaniline reaction apparatus as defined in claim 2, wherein: the filtering inlet is connected and communicated with the vaporizer gas phase outlet pipe (3) through an elbow pipe (4-4), wherein the curvature of the elbow pipe (4-4) is 18-23 degrees downwards, and the vaporizer gas phase outlet pipe (3) and the elbow pipe (4-4) form an included angle of 140-165 degrees downwards.
4. An improved N-methylaniline reaction apparatus as defined in claim 2, wherein: the filter tank body (4-1) is provided with an upper manhole (4-10) communicated with an upper filtered area and a lower manhole (4-11) communicated with a lower area to be filtered.
5. An improved N-methylaniline reaction apparatus as defined in claim 2, wherein: the upper end face of the filtering component is obliquely arranged, and the lower end face of the filtering component is horizontally arranged.
6. An improved N-methylaniline reaction apparatus as defined in claim 5, wherein: the filtering component comprises a lower cover plate (4-5) and an upper cover plate (4-9), wherein a lower wire mesh (4-6), a filtering net (4-7) and an upper wire mesh (4-8) are sequentially arranged between the lower cover plate (4-5) and the upper cover plate (4-9) from bottom to top.
7. An improved N-methylaniline reaction apparatus as defined in claim 2, wherein: the lower end socket (4-3) of the filter is connected with the lower end of the filter tank body (4-1) through a flange; at least three support legs (4-12) are arranged on the lower seal head (4-3) of the filter.
8. An improved N-methylaniline reactor as defined in claim 1 wherein: a drain valve (14) is arranged on the drain pipe (13).
9. An improved N-methylaniline reactor as defined in claim 1 wherein: and a control valve (12) is arranged on the liquid phase outlet pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122061163.9U CN215611426U (en) | 2021-08-30 | 2021-08-30 | Improved generation N-methylaniline reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122061163.9U CN215611426U (en) | 2021-08-30 | 2021-08-30 | Improved generation N-methylaniline reaction unit |
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| Publication Number | Publication Date |
|---|---|
| CN215611426U true CN215611426U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122061163.9U Active CN215611426U (en) | 2021-08-30 | 2021-08-30 | Improved generation N-methylaniline reaction unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN215611426U (en) |
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2021
- 2021-08-30 CN CN202122061163.9U patent/CN215611426U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230820 Address after: No. 1 Weihua Road, Xinbei District, Changzhou City, Jiangsu Province, 213127 Patentee after: Jiangsu Jingying Chemical New Materials Co.,Ltd. Address before: 213001 No. 1, Weihua Road, chemical industry park, Xinbei District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU BAOLONG CHEMICALS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1 Weihua Road, Xinbei District, Changzhou City, Jiangsu Province, 213127 Patentee after: Jiangsu Jingying New Materials Co.,Ltd. Address before: No. 1 Weihua Road, Xinbei District, Changzhou City, Jiangsu Province, 213127 Patentee before: Jiangsu Jingying Chemical New Materials Co.,Ltd. |