CN215387615U - Distillation column for dehydration of anhydrous acetonitrile - Google Patents
Distillation column for dehydration of anhydrous acetonitrile Download PDFInfo
- Publication number
- CN215387615U CN215387615U CN202121396799.2U CN202121396799U CN215387615U CN 215387615 U CN215387615 U CN 215387615U CN 202121396799 U CN202121396799 U CN 202121396799U CN 215387615 U CN215387615 U CN 215387615U
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- Prior art keywords
- tower body
- fluid
- spiral
- pipe
- group
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- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000004821 distillation Methods 0.000 title claims abstract description 32
- 230000018044 dehydration Effects 0.000 title claims description 13
- 238000006297 dehydration reaction Methods 0.000 title claims description 13
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000005485 electric heating Methods 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 33
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005574 cross-species transmission Effects 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 125000003713 acetylimino group Chemical group [H]C([H])([H])C(=O)N=[*] 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a distillation tower for dehydrating anhydrous acetonitrile, which comprises a distillation tower body, wherein the distillation tower body comprises a tower body; the flow equalizing assembly is axially arranged in the tower body and comprises a plurality of spiral pipes which are axially arranged in the tower body and have a structure with two penetrating ends, the spiral pipes are sequentially and radially laminated and arranged, the electric heating wires are powered on and powered on to operate through the arranged spiral pipes, the mixed fluid is added into each group of spiral pipes through the upper ends of the spiral pipes, the fluid passing through each group of spiral pipes is shunted, so that the flow equalizing effect of the fluid is better, when the fluid flows into the spiral pipe, the temperature of the fluid is increased more quickly and heated more uniformly by the heating of the electric heating wire, through the valve that sets up, every group spiral pipe is installed at the lateral wall of feed liquor pipe, through the liquid inlet rate of valve control fluid, keeps the fluid all the time and the spiral pipe lower opening department at the coplanar, avoids the fluid to lead to the fluid to spill over from the exhaust hole too fast.
Description
Technical Field
The utility model relates to the field of acetonitrile dehydration, in particular to a distillation tower for dehydrating anhydrous acetonitrile.
Background
Acetonitrile is an organic compound, has a molecular formula of C2H3N, is a colorless liquid, is very volatile, has a special odor similar to ether, has excellent solvent performance, and can dissolve various organic, inorganic and gaseous substances. Has certain toxicity and is infinitely mutually soluble with water and alcohol. Acetonitrile can generate typical nitrile reaction, is used for preparing a plurality of typical nitrogen-containing compounds, is an important organic intermediate, has various types of distillation tower equipment, and adopts a tower-type gas-liquid contact device for distillation, the distillation principle of the distillation tower is to partially gasify a liquid mixture, realize separation by utilizing the characteristic that the volatility of each component is different, the tower kettle is liquid, and the tower top is gas.
Present acetonitrile dehydration is with distillation column at the in-process of distillation dehydration, the structure that passes through the overflow weir dewaters more, add solution through the inlet of tower body top one side, heat through in the tower body, utilize the different characteristics of wherein each component volatility, realize the separation, then the structure through the overflow weir is at the in-process that heats the circulation to the fluid, because the structure of overflow weir is whole open structure, consequently when the fluid passes through the upper surface, the effect of flow equalizing to the fluid is relatively poor, this in-process that just leads to the heating of the downward circulation of fluid, fluidic even effect of heating is relatively poor, and then lead to local temperature too high or local temperature is lower, thereby influence the dehydration effect of acetonitrile.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the distillation tower for dehydrating the anhydrous acetonitrile, which has more uniform fluid, good heating effect and improved dehydration effect.
In order to solve the technical problems, the utility model provides the following technical scheme: the distillation tower for dehydrating the anhydrous acetonitrile comprises a distillation tower body, wherein the distillation tower body comprises a tower body;
the inside axial of tower body is provided with the subassembly that flow equalizes, the subassembly that flow equalizes is installed at the inside spiral pipe that runs through formula structure in a plurality of both ends of tower body including the axial, and is a plurality of the spiral pipe is radial laminating in proper order and is arranged, a plurality of exhaust holes have evenly been seted up from top to bottom to the spiral pipe upper surface.
As a preferable technical scheme of the utility model, the distillation tower body comprises a discharge pipe arranged on one side of the bottom of the tower body and an air outlet pipe arranged on the top of the tower body.
As a preferable technical scheme of the utility model, the electric heating wires with spiral structures are arranged in each group of spiral pipes.
As a preferred technical scheme of the utility model, the upper ends of the spiral pipes are provided with liquid inlet pipes, the liquid inlet pipes are of an open structure close to the outer side of the tower body and are communicated with each group of spiral pipes.
As a preferable technical scheme of the utility model, one side of the liquid inlet pipe, which is far away from the tower body, is connected with a valve.
As a preferable technical scheme of the utility model, a gap is reserved between each group of spiral pipes, and each group of spiral pipes is arranged on the side wall of the liquid inlet pipe.
Compared with the prior art, the utility model can achieve the following beneficial effects:
1. through the spiral pipe that sets up, with the electrical heating silk switch on the power to make its circular telegram operation, the inside of every group spiral pipe is added to the upper end that the fluid that will mix through the spiral pipe, shunts through the fluidic of the spiral pipe of every group, makes fluidic effect of flow equalizing better, when the fluid flows into the spiral pipe inside, through the heating of electrical heating silk, makes fluidic temperature promotion faster, heats more even.
2. Through the valve that sets up, every group spiral pipe is installed at the lateral wall of feed liquor pipe, through the liquid inlet rate of valve control fluid, keeps the fluid all the time and the spiral pipe lower opening department at the coplanar, avoids the fluid to lead to the fluid to spill over from the exhaust hole too fast.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of an explosive structure according to the present invention;
FIG. 3 is a schematic view of a spiral tube configuration of the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.
Wherein:
1. a distillation column body; 11. a tower body; 111. a discharge pipe; 112. an air outlet pipe;
2. a current sharing component; 21. a spiral tube; 211. an exhaust hole; 212. an electric heating wire; 22. a liquid inlet pipe; 23. and (4) a valve.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in figures 1-4, the utility model provides a distillation tower for dehydrating anhydrous acetonitrile, which comprises a distillation tower body 1, wherein the distillation tower body 1 comprises a tower body 11; the inside axial of tower body 11 is provided with the subassembly 2 that flow equalizes, and the subassembly 2 that flow equalizes is installed at the spiral pipe 21 that 11 inside a plurality of both ends of tower body run through the formula structure including the axial, and a plurality of spiral pipes 21 radially laminate in proper order and arrange, and a plurality of exhaust holes 211 have evenly been seted up from top to bottom to the spiral pipe 21 upper surface.
In this embodiment, distillation column body 1 is including seting up the discharging pipe 111 in tower body 11 bottom one side, set up the outlet duct 112 at tower body 11 top, the inside of outlet duct 112 separation back of being convenient for gas from outlet duct 112 separation department tower body 11 is seted up through tower body 11 top, the inside of discharging pipe 111 discharge tower body 11 is passed through to the solution after the separation, the inside electric heating wire 212 that all is provided with heliciform structure of every group spiral pipe 21, heat the fluid of circulation in spiral pipe 21 inside through electric heating wire 212, carry out synchronous heating at the in-process of fluid whereabouts, heating effect is better, more even.
Further, a plurality of spiral pipe 21 upper ends are provided with feed liquor pipe 22, and feed liquor pipe 22 is close to the 11 outsides of tower body and is open structure, and communicates each other with every group spiral pipe 21, through to the inside fluid that adds of feed liquor pipe 22, and the inside fluid of feed liquor pipe 22 enters into the inside of every group spiral pipe 21 afterwards, shunts, improves fluidic effect of flow equalizing for the effect when heating the distillation is better.
Furthermore, a valve 23 is connected to a side of the liquid inlet pipe 22 away from the tower 11, and the valve 23 is preferably a flow control valve, which works on the principle that as is well known to those skilled in the art, the flow control valve is a multifunctional valve that controls the flow in a high-precision pilot manner, and is a valve that controls the flow of the orifice by changing the size of the fluid resistance of the orifice under a certain pressure difference, thereby adjusting the movement speed of the actuator. The valve is suitable for the pipeline of water distribution pipe which needs to control flow and pressure, keeps the preset flow unchanged, limits the overlarge flow to a preset value, and properly reduces the upstream high pressure, so that the flow of the downstream of the main valve is not influenced even if the pressure of the upstream of the main valve changes. The flow control valve has the advantages of high control sensitivity, high safety and reliability, simple and convenient debugging, long service life and the like, and is widely applied at present.
Besides, leave the space between every group spiral pipe 21, and every group spiral pipe 21 is installed at feed liquor pipe 22 lateral wall, through the space that leaves between every group spiral pipe 21, the gas after the heating of being convenient for moves to the direction of outlet duct 112, and every group spiral pipe 21 is installed at the lateral wall of feed liquor pipe 22 simultaneously, through the fluidic inlet velocity of valve 23 control, keep the fluid all the time with spiral pipe 21 under shed department in the coplanar, avoid the fluid to lead to the fluid to spill over from exhaust hole 211 too fast.
When using, with electric heating wire 212 switch on, and make its circular telegram operation, the inside of every group spiral pipe 21 is added to the upper end that will mix through spiral pipe 21, and under the regulatory action through feed liquor pipe 22 and valve 23, make the fluid all the time with spiral pipe 21 under the department in the coplanar, avoid the fluid to lead to the fluid to spill over from exhaust hole 211 too fast, the fluid through the spiral pipe 21 of every group shunts, make fluidic effect of flow equalizing better, when the fluid flows into spiral pipe 21 inside, through electric heating wire 212's heating, make fluidic temperature promotion faster, heat more even.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. Anhydrous acetonitrile is distillation column for dehydration, including distillation column body (1), its characterized in that: the distillation tower body (1) comprises a tower body (11);
the inside axial of tower body (11) is provided with flow equalizing assembly (2), flow equalizing assembly (2) are including axial installation spiral pipe (21) at the inside a plurality of both ends through-type structures of tower body (11), and are a plurality of spiral pipe (21) are radial laminating in proper order and are arranged, a plurality of exhaust holes (211) have evenly been seted up from top to bottom on spiral pipe (21) upper surface.
2. The distillation column for dehydration of anhydrous acetonitrile according to claim 1, characterized in that: the distillation tower body (1) comprises a discharge pipe (111) arranged on one side of the bottom of the tower body (11) and an air outlet pipe (112) arranged on the top of the tower body (11).
3. The distillation column for dehydration of anhydrous acetonitrile according to claim 1, characterized in that: and electric heating wires (212) with spiral structures are arranged in each group of spiral pipes (21).
4. The distillation column for dehydration of anhydrous acetonitrile according to claim 1, characterized in that: a plurality of spiral pipe (21) upper end is provided with feed liquor pipe (22), feed liquor pipe (22) are close to the tower body (11) outside and are open structure, and communicate each other with every group spiral pipe (21).
5. The distillation column for dehydration of anhydrous acetonitrile according to claim 4, wherein: and one side of the liquid inlet pipe (22) far away from the tower body (11) is connected with a valve (23).
6. The distillation column for dehydration of anhydrous acetonitrile according to claim 1, characterized in that: gaps are reserved between the spiral pipes (21) of each group, and the spiral pipes (21) of each group are arranged on the side wall of the liquid inlet pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396799.2U CN215387615U (en) | 2021-06-23 | 2021-06-23 | Distillation column for dehydration of anhydrous acetonitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396799.2U CN215387615U (en) | 2021-06-23 | 2021-06-23 | Distillation column for dehydration of anhydrous acetonitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215387615U true CN215387615U (en) | 2022-01-04 |
Family
ID=79641737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121396799.2U Expired - Fee Related CN215387615U (en) | 2021-06-23 | 2021-06-23 | Distillation column for dehydration of anhydrous acetonitrile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215387615U (en) |
-
2021
- 2021-06-23 CN CN202121396799.2U patent/CN215387615U/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 |
Granted publication date: 20220104 |