CN210021219U - Device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification - Google Patents
Device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification Download PDFInfo
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- CN210021219U CN210021219U CN201920588386.0U CN201920588386U CN210021219U CN 210021219 U CN210021219 U CN 210021219U CN 201920588386 U CN201920588386 U CN 201920588386U CN 210021219 U CN210021219 U CN 210021219U
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- trifluoromethylpyridine
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Abstract
The utility model discloses a get rid of device of moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification belongs to fine chemical industry equipment technical field. A device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification comprises a shell, a water-containing 2, 3-dichloro-5-trifluoromethylpyridine, and a water-containing liquid; the upper cover of the water separator is fixedly connected to the top of the shell; the inserting pipe sequentially penetrates through the upper cover of the water separator and the top of the shell and extends into the shell; the lower cover of the water separator is fixedly connected to the bottom of the shell; the feed inlet is arranged at the top of the upper cover of the water separator; the discharge hole is arranged at the bottom of the cover below the water separator; the water outlet is arranged on the side wall of the shell; the glass sight glass is arranged on the outer wall of the shell along the vertical direction; the utility model discloses an earlier extract and separate the water in the material before the rectification, through setting up the water diversion process before the rectification promptly, reduced because of the unqualified cost that causes reworking and consume energy, manpower, packing material of finished product.
Description
Technical Field
The utility model relates to a fine chemical equipment technical field especially relates to a get rid of device of moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification.
Background
The high-purity 2, 3-dichloro-5-trifluoromethylpyridine product is obtained by high-temperature rectification in a rectification tower, partial impurities (water in an impurity removal reagent) in a semi-finished product of the 2, 3-dichloro-5-trifluoromethylpyridine are removed by impurity removal before rectification, and the semi-finished product is sent to a rectification kettle for rectification after water separation.
However, materials are inevitably brought into the rectifying still during water diversion, and the water content in the finished product is difficult to control due to limitations of tower height, process operation, environmental factors and the like. If the water content in the material is too high, the finished 2, 3-dichloro-5-trifluoromethylpyridine product has an unqualified appearance and is reworked, so that the time is wasted and the energy consumption is lost. How to further reduce the cost of energy and packaging materials and stabilize the production period is always a problem of urgent need for improvement in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the materials are inevitably brought into the rectifying still during water diversion, and the water content in the finished product is difficult to control due to the limitation of tower height, process operation, environmental factors and the like. If the water content in the material is too high, the appearance above the finished 2, 3-dichloro-5-trifluoromethylpyridine product is unqualified, and the reworking is carried out, so that the problems of time waste and energy consumption loss are solved, and the device for removing the water content in the 2, 3-dichloro-5-trifluoromethylpyridine during rectification is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification comprises
A housing containing 2, 3-dichloro-5-trifluoromethylpyridine containing water;
the upper cover of the water separator is fixedly connected to the top of the shell;
the inserting pipe sequentially penetrates through the upper cover of the water separator and the top of the shell and extends into the shell;
the lower cover of the water separator is fixedly connected to the bottom of the shell;
the feed inlet is arranged at the top of the upper cover of the water separator;
the discharge hole is arranged at the bottom of the cover below the water separator;
the water outlet is arranged on the side wall of the shell and is vertical to the shell;
and the glass sight glass is arranged on the outer wall of the shell along the vertical direction.
Preferably, the insertion tube is arranged at one end of the shell inside and is positioned below the water outlet.
Preferably, the upper cover of the water separator and the lower cover of the water separator are fixedly connected to the shell through long bolts.
Preferably, the insertion pipe penetrates through the feeding hole and is arranged inside the shell, and the insertion pipe is fixedly connected to the feeding hole through a fixing bolt.
Preferably, the upper cover and the lower cover of the water separator are both disc-shaped.
Preferably, the feed inlet, the discharge outlet and the water outlet are all connected with one-way valves.
Compared with the prior art, the utility model provides a get rid of device of moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification possesses following beneficial effect:
1. according to the device for removing the moisture in the 2, 3-dichloro-5-trifluoromethylpyridine during rectification, the moisture-containing 2, 3-dichloro-5-trifluoromethylpyridine is condensed by a condenser of a rectification tower and then flows into the shell of the water separator through an insertion pipe, materials and water are accumulated in the shell, when the water in the shell reaches the water outlet, the water is separated from the water outlet, the materials are accumulated in the shell and sampled through a discharge port, pre-collection distillation is started when the moisture content of the sampled materials is less than or equal to 0.1%, the collected water is separated to other storage tanks by using the shell in the water separator, so that the moisture content of the materials is reduced, when the moisture content of the sampled materials is less than or equal to 0.01%, a finished product collection stage is reached, subsequent rectification operation is carried out, and meanwhile, the positions of a water layer and a material layer in the shell can be observed through a.
2. According to the device for removing the moisture in the 2, 3-dichloro-5-trifluoromethylpyridine during rectification, the insertion pipe is arranged at one end inside the shell and below the water outlet, so that the material can conveniently enter the shell through the insertion pipe.
3. According to the device for removing the moisture in the 2, 3-dichloro-5-trifluoromethylpyridine during rectification, the upper cover of the water separator and the lower cover of the water separator are fixedly connected to the shell through the long bolts, and the upper cover of the water separator and the lower cover of the water separator are stably connected with the shell due to the long bolts.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a simple structure, convenient operation, the utility model discloses an earlier extract and separate the water in the material before the rectification, through setting up the division water process before the rectification promptly, reduced because of the unqualified cost that causes reworking and consume energy, manpower, packing material of finished product.
Drawings
FIG. 1 is a schematic structural diagram of a device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to the present invention;
fig. 2 is a schematic top structure diagram of a device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to the present invention.
In the figure: 1. the upper cover of the water separator; 2. an insertion tube; 3. a housing; 4. a lower cover of the water separator; 5. a glass sight glass; 6. a feed inlet; 7. a discharge port; 8. a water outlet; 9. a long bolt; 10. and (5) fixing the bolt.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to FIGS. 1-2, an apparatus for removing water from 2, 3-dichloro-5-trifluoromethylpyridine during rectification comprises
A shell 3 for containing 2, 3-dichloro-5-trifluoromethylpyridine containing water;
the upper cover 1 of the water separator is fixedly connected to the top of the shell 3;
the inserting pipe 2 sequentially penetrates through the upper cover 1 of the water separator and the top of the shell 3 and extends into the shell 3;
the lower cover 4 of the water separator is fixedly connected to the bottom of the shell 3;
the feed inlet 6 is arranged at the top of the cover 1 above the water separator;
the discharge port 7 is arranged at the bottom of the cover 4 below the water separator;
the water outlet 8 is arranged on the side wall of the shell 3 and is vertical to the shell 3;
The insertion pipe 2 is arranged at one end inside the shell 3 and is positioned below the water outlet 8, so that materials can conveniently enter the shell 3 through the insertion pipe 2.
The water distributor upper cover 1 and the water distributor lower cover 4 are both fixedly connected to the shell 3 through long bolts 9, and the water distributor upper cover 1 and the water distributor lower cover 4 are stably connected with the shell 3 due to the existence of the long bolts 9.
The insert tube 2 passes through the feed port 6 and is arranged in the shell 3, and the insert tube 2 is fixedly connected to the feed port 6 through a fixing bolt 10, so that the shell 3 can be conveniently fed through the insert tube 2.
The upper cover 1 and the lower cover 4 of the water separator are both disc-shaped.
The feed inlet 6, the discharge outlet 7 and the water outlet 8 are all connected with one-way valves, the presence of the one-way valves is convenient for conveying materials into the shell 3 through the feed inlet 6, is convenient for discharging qualified finished materials out of the shell 3 through the discharge outlet 7, and is convenient for discharging separated water out of the shell 3 through the water outlet 8.
The working principle is as follows: the water-containing 2, 3-dichloro-5-trifluoromethylpyridine is condensed by a condenser of a rectifying tower and then flows into a shell 3 of the water separator through an insert pipe 2, materials and water are accumulated in the shell 3, when the water in the shell 3 reaches a water outlet 8, the water is separated from the water outlet 8, the materials are accumulated in the shell 3, sampling is carried out through a discharge port 7, pre-harvest distillation is started when the water content of the sampled materials is less than or equal to 0.1%, the extracted water is separated to other storage tanks by using the shell 3 in the water separator so as to reduce the water content of the materials, when the water content of the sampled materials is less than or equal to 0.01%, the water layer and the material layer in the shell 3 reach a finished product stage, and then subsequent distillation operation is carried out, and meanwhile, the positions of the water layer and the material layer in the shell 3.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification is characterized by comprising:
a housing (3) containing 2, 3-dichloro-5-trifluoromethylpyridine containing water;
the upper cover (1) of the water separator is fixedly connected to the top of the shell (3);
the inserting pipe (2) sequentially penetrates through the upper cover (1) of the water separator and the top of the shell (3) and extends into the shell (3);
the lower cover (4) of the water separator is fixedly connected to the bottom of the shell (3);
the feeding hole (6) is arranged at the top of the cover (1) above the water separator;
the discharge hole (7) is arranged at the bottom of the cover (4) below the water separator;
the water outlet (8) is arranged on the side wall of the shell (3) and is vertical to the shell (3);
and the glass sight glass (5) is arranged on the outer wall of the shell (3) along the vertical direction.
2. The device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to claim 1, wherein the end of the insertion tube (2) disposed inside the shell (3) is located below the water outlet (8).
3. The device for removing the water in the 2, 3-dichloro-5-trifluoromethylpyridine during the rectification according to claim 1, wherein the upper cover (1) and the lower cover (4) of the water separator are fixedly connected to the shell (3) through long bolts (9).
4. The device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to any of the claims 1 to 3, wherein the insert tube (2) passes through the feed inlet (6) and is arranged inside the shell (3), and the insert tube (2) is fixedly connected to the feed inlet (6) through a fixing bolt (10).
5. The device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to any of the claims 1 to 3, wherein the upper cover (1) and the lower cover (4) of the water separator are both disc-shaped.
6. The device for removing water in 2, 3-dichloro-5-trifluoromethylpyridine during rectification according to claim 1, wherein the feed inlet (6), the discharge outlet (7) and the water outlet (8) are all connected with one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588386.0U CN210021219U (en) | 2019-04-27 | 2019-04-27 | Device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588386.0U CN210021219U (en) | 2019-04-27 | 2019-04-27 | Device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210021219U true CN210021219U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920588386.0U Active CN210021219U (en) | 2019-04-27 | 2019-04-27 | Device for removing moisture in 2, 3-dichloro-5-trifluoromethylpyridine during rectification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210021219U (en) |
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2019
- 2019-04-27 CN CN201920588386.0U patent/CN210021219U/en active Active
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