CN210205937U - Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether - Google Patents
Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether Download PDFInfo
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- CN210205937U CN210205937U CN201920625461.6U CN201920625461U CN210205937U CN 210205937 U CN210205937 U CN 210205937U CN 201920625461 U CN201920625461 U CN 201920625461U CN 210205937 U CN210205937 U CN 210205937U
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Abstract
The utility model discloses a rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether, which comprises a tower body, wherein the top and the bottom of the tower body are respectively provided with an air outlet and an air outlet, the upper part and the lower part of the tower body are respectively provided with an inlet and an air inlet, the inlet is positioned below the air outlet, the air inlet is positioned above the air outlet, a tower plate which is arranged at an upper and a lower interval is arranged between the inlet and the air inlet in the tower body, a gap is arranged between the tower plate and the tower body, a flow guide pipe is arranged on the tower plate, a silk screen filter which is obliquely arranged is arranged between two adjacent tower plates from top to bottom, the periphery of the silk screen filter is annularly arranged on the inner wall of the tower body, one end of the silk screen filter, which is close to the gap between the tower plate and the tower body, is higher than the, the spray head is provided with a spray surface which is arranged in parallel with the wire mesh filter, and the spray surface is provided with spray holes.
Description
Technical Field
The utility model relates to a rectifying column is used in separation of N, N-dimethyl propionamide-3-methyl ether belongs to chemical industry equipment technical field.
Background
The rectification is to utilize the difference of boiling point temperature of each component in the liquid mixture, and to carry out mass and heat transfer for many times through the gradual flow and contact of gas and liquid phases, thereby completing the separation process of the mixture. In the production of N, N-dimethyl propionamide-3-methyl ether in the biochemical field, a rectifying tower is an essential important device. At present, a distillation tower for separating N, N-dimethyl propionamide-3-methyl ether is a plate tower and comprises a cylindrical tower body, wherein a plurality of layers of tower plates are horizontally arranged in the tower body at certain intervals, liquid flows through interlayer tower plates from top to bottom under the action of gravity and is discharged from the bottom of the tower, gas sequentially flows through liquid layers on the tower plates from bottom to top and rises to the top of the tower for discharge, and gas-liquid two phases carry out mass heat exchange on the tower plates to finally separate the N, N-dimethyl propionamide-3-methyl ether in the liquid. In the rectifying tower, in order to make the liquid fall from the tower plates step by step, a gap is inevitably left between each tower plate and the tower body, and in addition, the liquid guide pipe on each tower plate also occupies the space of the tower plate, so that the area for carrying out mass heat exchange between gas phase and liquid phase is reduced, and the separation efficiency of the rectifying tower is low.
Disclosure of Invention
An object of the utility model is to provide a can improve the two looks matter heat exchange area's of gas-liquid N, N-dimethyl propionamide-3-methyl ether rectifying column for separation to solve the technical problem that the separation efficiency of prior art rectifying column is low.
The utility model adopts the following technical scheme: a rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether comprises a tower body, wherein the top and the bottom of the tower body are respectively provided with an air outlet and a liquid outlet, the upper part and the lower part of the tower body are respectively provided with a liquid inlet and an air inlet, the liquid inlet is positioned below the air outlet, the air inlet is positioned above the liquid outlet, a tower plate which is arranged at an upper and a lower interval is arranged between the liquid inlet and the air inlet in the tower body, a gap is arranged between the tower plate and the tower body, a flow guide pipe is arranged on the tower plate, a wire mesh filter which is obliquely arranged is arranged between two adjacent tower plates from top to bottom, the periphery of the wire mesh filter is annularly arranged on the inner wall of the tower body, one end of the wire mesh filter, which is close to the gap between the tower plate and the tower body, is higher, the spray head is provided with a spray surface which is arranged in parallel with the wire mesh filter, and the spray surface is provided with spray holes.
A wire mesh filter is also arranged below the lowest tower plate.
The flow guide pipe is positioned at the central part of the tower plate, at least two spray heads are connected to one flow guide pipe, and the spray heads connected to one flow guide pipe are uniformly distributed above the wire mesh filter.
The number of the flow guide pipes on the same tower plate is more than two, and all the flow guide pipes on the same tower plate are uniformly distributed around the axis of the tower body.
The bottom of each flow guide pipe is connected with a spray header.
In each wire mesh filter, a gap is formed between one end of each wire mesh filter, which is close to the lower end of the wire mesh filter, and the tower body.
The tower body is provided with a reboiling groove connected with the liquid outlet outside, the reboiling groove is provided with a steam outlet, and the steam outlet of the reboiling groove is connected with the air inlet through a pipeline.
The tower body is externally provided with a liquid circulation groove connected with the exhaust port, the liquid circulation groove is provided with a liquid outlet and a gas outlet, and the liquid outlet of the liquid circulation groove is connected with the liquid inlet through a pipeline.
The utility model has the advantages that: the utility model arranges the wire mesh filter between the tower plates, the liquid deposited on the tower plates flows downwards through the guide pipe, is sprayed on the wire mesh filter through the sprayer, and then flows downwards into the next tower plate through the wire mesh filter; the gas is contacted with the liquid on the tower plate and the liquid on the wire mesh filter step by step upwards to transfer heat and mass, and the wire mesh filter greatly increases the gas-liquid contact area, thereby enhancing the heat and mass transfer efficiency and ensuring that the product separation effect is good. Because the wire mesh filter is obliquely arranged, most of liquid passing through the wire mesh filter can fall into the lower-stage tower plate, and the situation that the liquid cannot penetrate out of the wire mesh filter under the conditions of high gas pressure and low liquid pressure is prevented.
Preferably, a plurality of spray headers are arranged to enable liquid to be sprayed more uniformly, and the gas-liquid heat and mass transfer effect is better.
Preferably, a gap is formed between the part below the screen filter and the tower body, so that liquid can pass through the gap quickly, a liquid film formed on the screen filter by the liquid is prevented, and gas is prevented from rising.
Preferably, the reboiling tank can recycle the feed liquid at the bottom of the tower, so that the separation effect is further improved.
Preferably, the liquid circulation tank may further increase the concentration of the separated substances.
Drawings
FIG. 1 is a schematic view showing the structure of a rectifying column for separating N, N-dimethylpropionamide-3-methylether according to example 1 of the present invention;
FIG. 2 is a cross-sectional view of the wire mesh filter and tower of FIG. 1;
FIG. 3 is a schematic view showing the structure of a rectifying column for separating N, N-dimethylpropionamide-3-methylether according to example 2 of the present invention.
In the figure, 1-tower body, 11-gas inlet, 12-gas outlet, 13-liquid inlet, 14-liquid outlet, 2-tower plate, 21-draft tube, 22-spray head, 3-wire filter, 31-gap, 4-reboiling groove, 41-steam outlet, 5-liquid circulating groove, 51-liquid outlet and 52-gas outlet.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1:
the structure of the rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether in this embodiment is shown in FIGS. 1 to 2, the rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether in this embodiment comprises a tower 1, wherein an exhaust port 12 and a liquid discharge port 14 are respectively arranged at the top and the bottom of the tower 1, a liquid inlet 13 and a gas inlet 11 are respectively arranged at the upper part and the lower part of the tower 1, the liquid inlet 13 is positioned below the exhaust port 12, the gas inlet 11 is positioned above the liquid discharge port 14, tower plates 2 which are arranged at intervals up and down are arranged in the tower between the liquid inlet 13 and the gas inlet 11, a gap is arranged between each tower plate 2 and the tower 1, a guide pipe 21 is arranged on each tower plate 2, a wire mesh filter 3 which is obliquely arranged is arranged between two adjacent tower plates 2 up and down is annularly arranged on the inner wall of the tower, one end of the wire mesh filter 3, which is close, the wire mesh filters 3 and the tower plate have an included angle of 10-15 degrees, and a gap is formed between the lower end of each wire mesh filter and the tower body. The bottom of the draft tube 21 on each column plate is respectively connected with a spray header 22, the spray header 22 is provided with a spray surface which is arranged in parallel with the wire mesh filter 3, and the spray surface is provided with spray holes. A wire mesh filter 3 is also arranged below the lowest tower plate.
In this embodiment, the flow guide tube 21 is located at the center of the tray 2, at least two spray headers 22 are connected to one flow guide tube 21, and the spray headers 22 connected to one flow guide tube are uniformly distributed above the wire mesh filter 3.
The outside of the tower body 1 is provided with a reboiling groove 4 connected with a liquid outlet, the reboiling groove 4 is provided with a steam outlet 41, and the steam outlet 41 of the reboiling groove 4 is connected with the air inlet 11 through a pipeline. The reboiling tank can recycle the material liquid at the bottom of the tower, thereby further improving the separation effect. The tower body 1 is also provided with a liquid circulation tank 5 connected with the exhaust port 12, the liquid circulation tank 5 is provided with a liquid outlet 51 and a gas outlet 52, and the liquid outlet 51 of the liquid circulation tank is connected with the liquid inlet 13 through a pipeline. The liquid circulation tank can further increase the concentration of the separated substances.
When the rectifying tower for separating the N, N-dimethyl propionamide-3-methyl ether in the embodiment operates, liquid deposited on the tower plate flows downwards from the guide pipe, is sprayed onto the wire mesh filter through the sprayer, and then flows downwards into the next stage of tower plate through the wire mesh filter; the gas is contacted with the liquid on the tower plate and the liquid on the wire mesh filter step by step upwards to transfer heat and mass, and the wire mesh filter greatly increases the gas-liquid contact area, thereby enhancing the heat and mass transfer efficiency and ensuring that the product separation effect is good. The arrangement of the plurality of spray headers enables liquid to be sprayed more uniformly, and the gas-liquid heat and mass transfer effect is better. Because the wire mesh filter is obliquely arranged, most of liquid passing through the wire mesh filter can fall into the lower-stage tower plate, and the situation that the liquid cannot penetrate out of the wire mesh filter under the conditions of high gas pressure and low liquid pressure is prevented. And a gap is formed between the part below the screen filter and the tower body, so that liquid can pass through the gap quickly, a liquid film formed on the screen filter by the liquid is prevented, and gas is prevented from rising.
Example 2:
the rectifying tower structure for separating N, N-dimethylpropionamide-3-methyl ether in this example is shown in fig. 3, and is different from example 1 in that the number of the draft tubes 21 on the same tray 2 is two or more, the draft tubes 21 on the same tray 2 are uniformly distributed around the axis of the tower body, and the bottom of each draft tube 21 is connected with a shower head 22. The rest of this embodiment is the same as embodiment 1, and will not be described herein again.
The utility model discloses in other embodiments, the quantity of shower head and honeycomb duct can be according to actual need nimble setting. The draft tube can be at any position on the tower plate.
The foregoing embodiments and description have been provided to illustrate the principles of the invention and, without departing from the spirit and scope of the invention, there are various changes and modifications that fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a rectifying column is used in separation of N, N-dimethyl propionamide-3-methyl ether, includes the tower body, and the top and the bottom of tower body are equipped with gas vent and leakage fluid dram respectively, and the upper portion and the lower part of tower body are equipped with inlet and air inlet respectively, and the inlet is located the gas vent below position, and the air inlet is located leakage fluid dram top position, is located in the tower body and is equipped with the column plate that the interval set up from top to bottom between inlet and the air inlet, has the vacancy between column plate and the tower body, is equipped with the honeycomb duct on the: the wire mesh filter that the slope set up is equipped with between two adjacent column plates from top to bottom, and the ring is established on the inner wall of tower body around the wire mesh filter, and the one end that the wire mesh filter is close to the vacancy between column plate and the tower body is higher than other one end, and the wire mesh filter has 10 to 15 contained angles with the column plate, the bottom of the honeycomb duct on every column plate is connected with the shower head respectively, has the face of spraying with wire mesh filter parallel arrangement on the shower head, has seted up on the face of spraying and has sprayed the hole.
2. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: a wire mesh filter is also arranged below the lowest tower plate.
3. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: the flow guide pipe is positioned at the central part of the tower plate, at least two spray heads are connected to one flow guide pipe, and the spray heads connected to one flow guide pipe are uniformly distributed above the wire mesh filter.
4. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: the number of the flow guide pipes on the same tower plate is more than two, and all the flow guide pipes on the same tower plate are uniformly distributed around the axis of the tower body.
5. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 3, wherein: the bottom of each flow guide pipe is connected with a spray header.
6. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: in each wire mesh filter, a gap is formed between one end of each wire mesh filter, which is close to the lower end of the wire mesh filter, and the tower body.
7. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: the tower body is provided with a reboiling groove connected with the liquid outlet outside, the reboiling groove is provided with a steam outlet, and the steam outlet of the reboiling groove is connected with the air inlet through a pipeline.
8. The rectification column for separating N, N-dimethylpropionamide-3-methylether according to claim 1, wherein: the tower body is externally provided with a liquid circulation groove connected with the exhaust port, the liquid circulation groove is provided with a liquid outlet and a gas outlet, and the liquid outlet of the liquid circulation groove is connected with the liquid inlet through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625461.6U CN210205937U (en) | 2019-05-05 | 2019-05-05 | Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625461.6U CN210205937U (en) | 2019-05-05 | 2019-05-05 | Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210205937U true CN210205937U (en) | 2020-03-31 |
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ID=69924668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625461.6U Active CN210205937U (en) | 2019-05-05 | 2019-05-05 | Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210205937U (en) |
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2019
- 2019-05-05 CN CN201920625461.6U patent/CN210205937U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220209 Address after: 213200 No. 3, Houyang chemical industry park, Jintan District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU TIANHUA PHARMACEUTICAL Co.,Ltd. Patentee after: Yumen QIANHUA Pharmaceutical Co., Ltd Address before: 213200 No. 3, Houyang chemical industry park, Jintan District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU TIANHUA PHARMACEUTICAL Co.,Ltd. |
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| TR01 | Transfer of patent right |