CN212974222U - Diphenyl carbonate rectification preparation facilities - Google Patents
Diphenyl carbonate rectification preparation facilities Download PDFInfo
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- CN212974222U CN212974222U CN202021240784.2U CN202021240784U CN212974222U CN 212974222 U CN212974222 U CN 212974222U CN 202021240784 U CN202021240784 U CN 202021240784U CN 212974222 U CN212974222 U CN 212974222U
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Abstract
The utility model discloses a diphenyl carbonate rectification preparation facilities relates to diphenyl carbonate manufacturing technical field. Comprises a rectifying tower, a feed inlet, a heating plate, a first-stage condensing plate, a second-stage condensing plate, a third-stage condensing plate, a filtrate plate and a liquid outlet. Has the advantages that: the liquid finally remained at the bottom of the rectifying tower is the required diphenyl carbonate liquid through layer-by-layer condensation of the multi-stage condensation plates, and is finally discharged through the discharge pipe, the content of diphenyl carbonate in the liquid left after layer-by-layer condensation is high, the purity of rectification preparation is effectively improved, a large amount of expenditure required in the purification process is reduced, and the cost is reduced; by arranging the overflow plate and the diversion fan, the liquid level height of the liquid accumulated on each layer of filter plate must be higher than that of the overflow plate to enter the lower layer of filter plate through the diversion fan, so that the liquid accumulated at the bottom end inside the rectification tower is not excessive to cause low heating efficiency, waste of energy and cost saving.
Description
Technical Field
The utility model relates to a diphenyl carbonate makes technical field, particularly, relates to a diphenyl carbonate preparation facilities that rectifies.
Background
Diphenyl carbonate is an important organic carbonate without toxicity and pollution, is commonly used as a synthetic raw material of polycarbonate, poly-p-hydroxybenzoate and the like, and is widely used in the fields of electronic and electric appliances, machinery, aviation, traffic, construction, agriculture, textile, medical treatment and the like.
The method is particularly important for the rectification of the diphenyl carbonate in the production process, the purity of the diphenyl carbonate generated by rectification is one of the most critical influencing factors influencing the final synthetic product, and therefore, the purification by multiple rectification and condensation is one of the solutions for solving the problem that the purity of the diphenyl carbonate is not high.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a diphenyl carbonate rectification preparation device to overcome the technical problems existing in the prior art.
The technical scheme of the utility model is realized like this:
a diphenyl carbonate rectification preparation device comprises: the rectifying tower comprises a rectifying tower, wherein a plurality of supporting legs are arranged at the bottom end of the rectifying tower, a discharging pipe is arranged in the center of the bottom end of the rectifying tower, an exhaust port is arranged at the top end of the rectifying tower, a feed inlet is formed in one end of the rectifying tower, a heating plate is arranged at the bottom end inside the rectifying tower, a first-stage condensation plate is arranged above the heating plate, an overflow plate is arranged at one end of the first-stage condensation plate, a flow guide fan is arranged at one end of the overflow plate, a second-stage condensation plate is arranged above the first-stage condensation plate, a third-stage condensation plate is arranged above the second-stage condensation plate, a plurality of air vents are formed in the third-stage condensation plate, a filtrate plate is arranged above the third-.
Further, the first-stage condensation plate, the second-stage condensation plate and the third-stage condensation plate are all composed of two layers of filter plates, air holes are formed in the filter plates, and the two layers of filter plates are connected through a flow guide fan.
Furthermore, one end of each layer of filter plate of the first-stage condensation plate, the second-stage condensation plate and the third-stage condensation plate is provided with an overflow plate, and one end of the overflow plate is provided with a flow guide fan.
Further, the second grade condensation plate passes through the water conservancy diversion fan and links to each other with the one-level condensation plate, tertiary condensation plate passes through the water conservancy diversion fan and links to each other with the second grade condensation plate.
Further, the top of the diversion fan is sealed and arranged, and the bottom and the side of the diversion fan are both opened.
The beneficial effects of the utility model are that, at first will treat inside the mixed liquid of rectification is sent into the rectifying column through the feed inlet, will treat the mixed liquid heating of rectification to the boiling and keep its boiling state through the heating effect of hot plate, the boiling in-process produces a large amount of mixed steam and rises naturally, because the one-level condensation plate, the second grade condensation plate, tertiary condensation plate comprises two-layer filter plate, and all be provided with the air vent on all filter plates, the one end of every layer of filter plate all is provided with the overflow board, overflow board one end all is provided with the water conservancy diversion fan, steam is condensed when passing through the air vent, the liquid that produces after the condensation is collected on the filter plate and is flowed to the continuous backward flow on the filter plate of below through the opening of water conservancy diversion fan bottom in getting into the water conservancy diversion fan through the overflow board and is heated again to the boiling, high temperature steam passes through the one-, Residual steam after condensation of the multi-layer filter plates of the second-stage condensation plate and the third-stage condensation plate is finally condensed through a filter liquid hole in the filter liquid plate, then accumulated on the filter liquid plate is finally discharged from a liquid discharge port, residual gas after multi-stage condensation is finished is discharged out of the rectifying tower through a gas discharge port for recovery treatment, and after rectification is finished, diphenyl carbonate at the bottom of the rectifying tower is discharged from a discharge pipe, so that the rectification preparation process of the diphenyl carbonate is finished. According to the diphenyl carbonate rectification preparation device, the multistage condensation plates are arranged, so that the liquid finally remained at the bottom of the rectification tower is the required diphenyl carbonate liquid through layer-by-layer condensation of the multistage condensation plates, and is finally discharged through the discharge pipe, the content of diphenyl carbonate in the liquid left after layer-by-layer condensation is high, the purity of rectification preparation is effectively improved, a large amount of expenditure required in the purification process is reduced, and the cost is reduced; according to the diphenyl carbonate rectification preparation device, the overflow plate and the diversion fan are arranged, the liquid level height of liquid accumulated on each layer of filter plate must be higher than that of the overflow plate to enter the lower layer of filter plate through the diversion fan, so that the liquid accumulated at the bottom end inside the rectification tower is not excessive, the heating efficiency is low, the energy is wasted, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic diagram of an overall explosion according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view according to an embodiment of the present invention.
In the figure:
1. a rectifying tower; 11. supporting legs; 12. a discharge pipe; 13. an exhaust port; 2. a feed inlet; 3. heating plates; 4. a first-stage cold plate; 41. an overflow plate; 42. a flow guiding fan; 5. a secondary cold plate; 6. a third-stage condensation plate; 61. a vent hole; 7. a filtrate plate; 71. a filtrate well; 8. and a liquid discharge port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
According to the embodiment of the utility model, a diphenyl carbonate rectification preparation facilities is provided.
As shown in fig. 1 to 3, a diphenyl carbonate rectification apparatus according to an embodiment of the present invention includes: the rectifying tower comprises a rectifying tower 1, wherein a plurality of supporting legs 11 are arranged at the bottom end of the rectifying tower 1, a discharging pipe 12 is arranged at the center of the bottom end of the rectifying tower 1, an exhaust port 13 is arranged at the top end of the rectifying tower 1, a feeding port 2 is arranged at one end of the rectifying tower 1, a heating plate 3 is arranged at the bottom end inside the rectifying tower 1, a first-stage condensation plate 4 is arranged above the heating plate 3, a first-stage condensation plate 41 is arranged at one end of the first-stage condensation plate 4, a diversion fan 42 is arranged at one end of the first-stage condensation plate 41, a second-stage condensation plate 5 is arranged above the first-stage condensation plate 4, a third-stage condensation plate 6 is arranged above the second-stage condensation plate 5, a plurality of vent holes 61 are formed in the third-stage condensation plate 6, a filtrate plate 7 is arranged above the third-stage condensation.
In one embodiment, the first-stage condensation plate 4, the second-stage condensation plate 5 and the third-stage condensation plate 6 are each composed of two filter plates, each filter plate is provided with a vent hole 61, and the two filter plates are connected through a flow guiding fan 42, so that steam can be condensed on each filter plate through the vent holes 61.
In one embodiment, an overflow plate 41 is disposed at one end of each of the first-stage condensation plate 4, the second-stage condensation plate 5, and the third-stage condensation plate 6, and a flow guiding fan 42 is disposed at one end of the overflow plate 41, so that the liquid left by condensation flows down through the overflow plate 41 and the flow guiding fan 42.
In one embodiment, the second-stage condensation plate 5 is connected to the first-stage condensation plate 4 by a guide fan 42, and the third-stage condensation plate 6 is connected to the second-stage condensation plate 5 by a guide fan 42, so that the liquid condensed by the upper-stage condensation plate can flow to the lower stage by the guide fan 42.
In one embodiment, the top end of the diversion fan 42 is sealed, the bottom end and the side surface of the diversion fan 42 are both opened, so that the diversion fan 42 can well conduct water flow.
In summary, according to the above technical solution of the present invention, firstly, the mixed liquid to be rectified is fed into the rectifying tower 1 through the feeding port 2, the mixed liquid to be rectified is heated to boiling and kept in the boiling state by the heating of the heating plate 3, a large amount of mixed steam is generated in the boiling process and naturally rises, because the first-stage condensation plate 4, the second-stage condensation plate 5 and the third-stage condensation plate 6 are composed of two layers of filter plates, and all the filter plates are provided with the vent holes 61, one end of each layer of filter plate is provided with the overflow plate 41, one end of the overflow plate 41 is provided with the flow guiding fan 42, the steam is condensed while passing through the vent holes 61, the liquid generated after condensation is accumulated on the filter plates until the height of the overflow plate 41 is exceeded, enters the flow guiding fan 42 through the overflow plate 41, flows onto the filter plate below through the opening at the bottom end of the flow guiding fan 42, continuously flows back to the bottom end, residual steam after high-temperature steam is condensed through a filtrate hole 71 in a filtrate plate 7 after the high-temperature steam is condensed through a plurality of filter plates of a first-stage condensation plate 4, a second-stage condensation plate 5 and a third-stage condensation plate 6, the residual steam is finally collected on the filtrate plate 7 and is finally discharged from a liquid discharge port 8, residual gas after the multi-stage condensation is finished is discharged out of the rectifying tower 1 through an exhaust port 13 for recovery treatment, diphenyl carbonate at the bottom of the rectifying tower 1 is discharged from a discharge pipe 12 after the rectification is finished, and the rectification preparation process of the diphenyl carbonate is finished.
Has the advantages that: 1. this kind of diphenyl carbonate rectification preparation facilities through setting up the multistage condensation board, makes the liquid that finally remains at rectifying column 1 tower bottom promptly be required diphenyl carbonate liquid through the layer upon layer condensation of multistage condensation board to finally discharge through discharging pipe 12, diphenyl carbonate content is high in the liquid that layer upon layer condensation left, has effectively improved the purity of rectification preparation, reduces the required a large amount of expenses of purification process, subducts the cost.
2. According to the diphenyl carbonate rectification preparation device, by arranging the overflow plate 41 and the flow guide fan 42, the liquid level height of liquid collected on each layer of filter plate must be higher than that of the overflow plate 41 to enter the lower layer of filter plate through the flow guide fan 42, so that the liquid collected at the bottom end inside the rectification tower 1 is not excessive, the heating efficiency is not low, the energy is wasted, and the cost is saved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A diphenyl carbonate rectification preparation device comprises: the rectifying tower (1) is characterized in that a plurality of supporting legs (11) are arranged at the bottom end of the rectifying tower (1), a discharging pipe (12) is arranged in the center of the bottom end of the rectifying tower (1), an exhaust port (13) is arranged at the top end of the rectifying tower (1), a feeding port (2) is arranged at one end of the rectifying tower (1), a heating plate (3) is arranged at the bottom end inside the rectifying tower (1), a primary condensing plate (4) is arranged above the heating plate (3), an overflow plate (41) is arranged at one end of the primary condensing plate (4), a guide fan (42) is arranged at one end of the overflow plate (41), a secondary condensing plate (5) is arranged above the primary condensing plate (4), a tertiary condensing plate (6) is arranged above the secondary condensing plate (5), a plurality of vent holes (61) are formed in the tertiary condensing plate (6), and a liquid filtering plate (7) is arranged above the tertiary condensing plate, a plurality of filtrate holes (71) are formed in the filtrate plate (7), and a liquid outlet (8) is formed in one end of the top end of the rectifying tower (1).
2. The rectification and preparation device of diphenyl carbonate according to claim 1, wherein the first-stage condensation plate (4), the second-stage condensation plate (5) and the third-stage condensation plate (6) are formed by two filter plates, each filter plate is provided with a vent hole (61), and the two filter plates are connected through a flow guiding fan (42).
3. The rectification and preparation device of diphenyl carbonate according to claim 1, wherein an overflow plate (41) is disposed at one end of each filter plate of the primary condensation plate (4), the secondary condensation plate (5) and the tertiary condensation plate (6), and a flow guiding fan (42) is disposed at one end of each overflow plate (41).
4. The diphenyl carbonate rectification preparation device according to claim 1, wherein the secondary condensation plate (5) is connected to the primary condensation plate (4) by a diversion fan (42), and the tertiary condensation plate (6) is connected to the secondary condensation plate (5) by a diversion fan (42).
5. The diphenyl carbonate rectification preparation device according to claim 1, wherein the top end of the flow guiding fan (42) is sealed, and the bottom end and the side surface of the flow guiding fan (42) are both open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240784.2U CN212974222U (en) | 2020-06-30 | 2020-06-30 | Diphenyl carbonate rectification preparation facilities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240784.2U CN212974222U (en) | 2020-06-30 | 2020-06-30 | Diphenyl carbonate rectification preparation facilities |
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| CN212974222U true CN212974222U (en) | 2021-04-16 |
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| CN202021240784.2U Active CN212974222U (en) | 2020-06-30 | 2020-06-30 | Diphenyl carbonate rectification preparation facilities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730939A (en) * | 2021-09-18 | 2021-12-03 | 九天起宏(江苏)检测有限公司 | Rectifying column based on chemical production |
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2020
- 2020-06-30 CN CN202021240784.2U patent/CN212974222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730939A (en) * | 2021-09-18 | 2021-12-03 | 九天起宏(江苏)检测有限公司 | Rectifying column based on chemical production |
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