CN211863865U - Desolventizing reboiler for cyanopyridine production - Google Patents
Desolventizing reboiler for cyanopyridine production Download PDFInfo
- Publication number
- CN211863865U CN211863865U CN201922221846.9U CN201922221846U CN211863865U CN 211863865 U CN211863865 U CN 211863865U CN 201922221846 U CN201922221846 U CN 201922221846U CN 211863865 U CN211863865 U CN 211863865U
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- liquid inlet
- liquid
- inlet pipe
- heater body
- reboiler
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Abstract
The utility model provides a cyanopyridine production desolventizing reboiler. The heater comprises a heater body, wherein a liquid inlet, a liquid outlet and an air outlet are arranged on the heater body, a liquid inlet pipe communicated with the liquid inlet is arranged in the heater body, the liquid inlet pipe extends along the inner wall of the heater body, and one section of the liquid inlet pipe close to the upper end of the heater body is a horizontal section; the lower surface of the horizontal section of the liquid inlet pipe is provided with a plurality of liquid dropping holes; a steam heating device is arranged right below the horizontal section of the liquid inlet pipe; the exhaust port is connected with a gas collecting device outwards. The device of the utility model is simple in structure, adopt steam heat exchange technique to heat, have good leakproofness and corrosion resistance, can improve product secondary evaporation efficiency, reduced equipment cost.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, in particular to cyanopyridine production desolventizing reboiler.
Background
Cyanopyridine is a white crystal commonly used in the pharmaceutical and food industries, and in the production process of cyanopyridine, equipment commonly used is a crystallizer, a distillation column, an extraction column. Wherein, after the cyanopyridine extracted by the extraction tower is separated from the solution, secondary distillation is needed, and the commonly used equipment is a reboiler.
The prior reboiler generally adopts a direct heating technology to heat liquid to evaporate the liquid, and then because cyanopyridine has certain corrosivity to common equipment and is harmful to human health, the reboiler adopts a common direct heating mode to have higher requirements on the sealing property and the corrosion resistance of the equipment, thereby invisibly increasing the complexity of the equipment.
Therefore, a new reboiler needs to be designed.
Disclosure of Invention
The utility model aims to solve the technical problem overcome prior art's defect, provide a simple structure, adopt heat exchange technology to heat, have good leakproofness and corrosion resistance, improve product secondary evaporation efficiency, reduce equipment cost's cyanopyridine production desolventizing reboiler.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a desolventizing reboiler for cyanopyridine production comprises a heater body, wherein the heater body is provided with a liquid inlet, a liquid outlet and an air outlet, and is characterized in that the heater body is internally provided with a liquid inlet pipe communicated with the liquid inlet, the liquid inlet pipe extends along the inner wall of the heater body, and one section of the liquid inlet pipe close to the upper end of the heater body is a horizontal section; the lower surface of the horizontal section of the liquid inlet pipe is provided with a plurality of liquid dropping holes, and liquid in the liquid inlet pipe is supplied to downwards form liquid dropping; a steam heating device is arranged right below the horizontal section of the liquid inlet pipe and is used for directly heating the dropping liquid; the exhaust port is connected with a gas collecting device outwards.
In the above scheme, the dropping liquid holes on the liquid inlet pipe are distributed at equal intervals, the liquid inlet pipe is further provided with a pair of supporting devices, and the supporting devices are connected to the upper end of the heater body and used for supporting the liquid inlet pipe.
In the above scheme, the steam heating device comprises a grid-shaped steam pipeline and a steam generator, and the steam pipeline is communicated with the steam generator to perform steam heat circulation.
In the above scheme, the liquid discharge port is arranged at the bottom of the heater body and used for discharging residual waste liquid.
The principle of the utility model lies in:
the traditional heating technology is changed into the heating technology for heating the dropping liquid to volatilize the dropping liquid, so that the vaporization speed can be greatly improved, meanwhile, the steam pipeline is utilized to heat the liquid, the direct contact between the liquid and a heating substance is avoided, and the service life of the device is prolonged.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
the device of the utility model is simple in structure, adopt steam heat exchange technique to heat, have good leakproofness and corrosion resistance, can improve product secondary evaporation efficiency, reduced equipment cost.
Drawings
FIG. 1 is an overall block diagram of an embodiment of the present invention;
in the figure: 1 heater body 2 liquid inlet 3 liquid outlet 4 gas outlet 5 liquid inlet pipe 6 liquid drop hole
7 gas collecting means 8 support means 9 steam pipes 10 steam generator.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in figure 1, the desolventizing reboiler for cyanopyridine production comprises a heater body 1, wherein the heater body 1 is provided with a liquid inlet 2, a liquid outlet 3 and an air outlet 4, and the liquid outlet 3 is arranged at the bottom of the heater body 1 and is used for discharging residual waste liquid; a liquid inlet pipe 5 communicated with the liquid inlet 2 is arranged in the heater body 1, the liquid inlet pipe 5 extends along the inner wall of the heater body 1, and one section of the liquid inlet pipe 5 close to the upper end of the heater body 1 is a horizontal section; the lower surface of the horizontal section of the liquid inlet pipe 5 is provided with a plurality of liquid dropping holes 6, and liquid in the liquid inlet pipe 5 is supplied downwards to form liquid dropping; a steam heating device is arranged right below the horizontal section of the liquid inlet pipe 5 and used for directly heating dropping liquid, the steam heating device comprises a grid-shaped steam pipeline 9 and a steam generator 10, and the steam pipeline 9 is communicated with the steam generator 10 to perform steam thermal circulation; the exhaust port 4 is connected with a gas collecting device 7 outwards.
In this embodiment, the liquid dropping holes 6 on the liquid inlet pipe 5 are distributed at equal intervals, a pair of supporting devices 8 are further arranged on the liquid inlet pipe 5, and the supporting devices 8 are connected to the upper end of the heater body 1 and used for supporting the liquid inlet pipe 5.
The embodiment of the utility model provides a during the use, change the injection of liquid into the dropping liquid, accelerated the speed of evaporation greatly, improved production efficiency.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A desolventizing reboiler for cyanopyridine production comprises a heater body, wherein the heater body is provided with a liquid inlet, a liquid outlet and an air outlet, and is characterized in that the heater body is internally provided with a liquid inlet pipe communicated with the liquid inlet, the liquid inlet pipe extends along the inner wall of the heater body, and one section of the liquid inlet pipe close to the upper end of the heater body is a horizontal section; the lower surface of the horizontal section of the liquid inlet pipe is provided with a plurality of liquid dropping holes, and liquid in the liquid inlet pipe is supplied to downwards form liquid dropping; a steam heating device is arranged right below the horizontal section of the liquid inlet pipe and is used for directly heating the dropping liquid; the exhaust port is connected with a gas collecting device outwards.
2. The cyanopyridine production desolventizing reboiler of claim 1, wherein: the liquid inlet pipe is provided with a pair of supporting devices which are connected to the upper end of the heater body and used for supporting the liquid inlet pipe.
3. The cyanopyridine production desolventizing reboiler of claim 1, wherein: the steam heating device comprises a grid-shaped steam pipeline and a steam generator, and the steam pipeline is communicated with the steam generator to perform steam thermal cycle.
4. The cyanopyridine production desolventizing reboiler of claim 1, wherein: the liquid outlet is arranged at the bottom of the heater body and used for discharging residual waste liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221846.9U CN211863865U (en) | 2019-12-12 | 2019-12-12 | Desolventizing reboiler for cyanopyridine production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221846.9U CN211863865U (en) | 2019-12-12 | 2019-12-12 | Desolventizing reboiler for cyanopyridine production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211863865U true CN211863865U (en) | 2020-11-06 |
Family
ID=73244779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922221846.9U Expired - Fee Related CN211863865U (en) | 2019-12-12 | 2019-12-12 | Desolventizing reboiler for cyanopyridine production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211863865U (en) |
-
2019
- 2019-12-12 CN CN201922221846.9U patent/CN211863865U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 Termination date: 20211212 |