CN220736323U - Continuous automatic water diversion device - Google Patents
Continuous automatic water diversion device Download PDFInfo
- Publication number
- CN220736323U CN220736323U CN202322332401.4U CN202322332401U CN220736323U CN 220736323 U CN220736323 U CN 220736323U CN 202322332401 U CN202322332401 U CN 202322332401U CN 220736323 U CN220736323 U CN 220736323U
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- Prior art keywords
- pipe
- dctf
- water
- diversion device
- discharging
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 239000012071 phase Substances 0.000 description 7
- 239000012043 crude product Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000001256 steam distillation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- ABNQGNFVSFKJGI-UHFFFAOYSA-N 2,3-dichloro-5-(trifluoromethyl)pyridine Chemical compound FC(F)(F)C1=CN=C(Cl)C(Cl)=C1 ABNQGNFVSFKJGI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Abstract
The utility model relates to chemical equipment, in particular to a continuous automatic water diversion device in a DCTF refining process. The water separator comprises a water vapor condenser, a water separator, a discharge chute and a receiving kettle, and is characterized in that a condensate discharging pipe is arranged at the top of the water separator, one end of the condensate discharging pipe extends into the water separator, the other end of the condensate discharging pipe is connected with the water vapor condenser, an overflow port is arranged on one side, close to the top, of the water separator main body, the overflow port is connected with a U-shaped pipe through a pipeline, the other end of the U-shaped pipe is connected with the water vapor kettle through a return pipe, the top of the water separator is connected with the top of the discharge chute through a gas phase balance exhaust pipe, and the bottom of the water separator is connected with the bottom of the discharge chute through a DCTF feed pipe; the outlet of the DCTF feeding pipe extends into the discharge chute for installation; and a DCTF discharging port is arranged at the side lower part of the discharging groove and is connected with the receiving kettle through a DCTF discharging pipe. The continuous automatic water diversion device realizes the automatic separation of the DCTF and the water by the principle of the communicating vessel and the characteristic that the DCTF and the water are insoluble.
Description
Technical Field
The utility model relates to chemical equipment, in particular to a continuous automatic water diversion device in a DCTF refining process.
Background
In the refining process (steam distillation) of 2, 3-dichloro-5-trifluoromethylpyridine (DCTF), the DCTF crude product is separated from the fluorinated product in a steam kettle through steam distillation operation, the steam evaporated in the steam kettle and the DCTF crude product mixed gas flow into a water separator after being condensed by a condenser, water is at the upper layer, the DCTF crude product is at the lower layer, water flows back into the steam kettle in an overflow mode for recycling, DCTF is enriched at the bottom of the water separator, and the DCTF crude product is periodically separated into a DCTF crude product receiving tank.
The existing DCTF steam distillation device mainly comprises a steam kettle, a condenser, a water separator, a DCTF receiving tank, a water separator water phase backflow pipe, a water separator DCTF discharging pipe, a plurality of control valves and a gas phase balance exhaust pipe, wherein steam volatilized in the steam kettle and DCTF steam are connected with an inlet of the condenser through pipelines, a condensate outlet of the condenser is connected with a top feeding interface of the water separator, a gas phase connecting pipe at the bottom side of the condenser is connected with a gas phase connecting pipe at the top of the water separator and then is discharged to a tail gas treatment system, a condensate water backflow interface is arranged at the side of the upper part of the water separator, the condensate water backflow pipe is connected to the steam kettle through a backflow pipe, a U-shaped pipe is arranged at an outlet of the condensate water backflow pipe, and a valve is arranged at the bottom of the water separator. When the liquid level of the DCTF crude product reaches the set liquid level, a valve is opened manually to separate the DCTF into a DCTF receiving tank. The water diversion device needs an operator to continuously observe the DCTF liquid level and timely separate the DCTF into the DCTF receiving tank, the water diversion interface is not easy to control in the operation mode, a large amount of water is possibly brought into the DCTF receiving tank by frequently opening the valve, when the DCTF discharging valve is opened, the condensate of the DCTF and the water continuously enters the water diversion device, the separation sedimentation time is insufficient, a large amount of water is brought into the DCTF receiving tank, if the DCTF is not timely separated, long-time backflow of the water and the DCTF is possibly caused, the energy waste is caused, the waste water yield is increased, the product quality is influenced, and the production efficiency is influenced.
Disclosure of Invention
The utility model aims to solve the problems and provides a continuous automatic water diversion device.
The utility model is realized by the following technical scheme: the continuous automatic water diversion device comprises a water evaporation condenser, a water diversion device, a discharge chute and a receiving kettle, and is characterized in that a condensate discharging pipe is arranged at the top of the water diversion device, one end of the condensate discharging pipe extends into the water diversion device, the other end of the condensate discharging pipe is connected with the water evaporation condenser, an overflow port is arranged on one side, close to the top, of a water diversion device main body, the overflow port is connected with a U-shaped pipe through a pipeline, the other end of the U-shaped pipe is connected with the water evaporation kettle through a return pipe, the top of the water diversion device is connected with the top of the discharge chute through a gas phase balance exhaust pipe, and the bottom of the water diversion device is connected with the bottom of the discharge chute through a DCTF feed pipe; the outlet of the DCTF feeding pipe extends into the discharge chute for installation; and a DCTF discharging port is arranged at the side lower part of the discharging groove and is connected with the receiving kettle through a DCTF discharging pipe.
Further, the DCTF inlet pipe is connected with the DCTF discharging pipe through a pipeline, and a discharging valve is arranged on the pipeline connected with the DCTF inlet pipe and the DCTF discharging pipe.
Further, the bottom of the U-shaped pipe is connected with a return pipe through a pipeline, and a drain valve is arranged on the pipeline connected with the return pipe at the bottom of the U-shaped pipe.
Further, a discharge valve is arranged at the head end of the DCTF discharging pipe.
Further, the top of blown down tank is equipped with the blast pipe, and the blast pipe is connected to tail gas treatment system.
The beneficial effects of the utility model are as follows: the continuous automatic water diversion device realizes the automatic separation of the DCTF and the water by the principle of the communicating vessel and the characteristic that the DCTF and the water are insoluble.
The utility model reduces the workload of operators, misoperation, labor intensity and energy waste, wastewater generation, material loss caused by human factors and product quality, thereby improving production capacity and production efficiency.
Drawings
FIG. 1 is a schematic diagram of the process structure of the present utility model.
In the drawing, a water vapor condenser 1, a water separator 2, a discharge chute 3, a receiving kettle 4, a condensate discharging pipe 5, a pipe 6U, a return pipe 7, a water vapor kettle 8, a gas phase balance exhaust pipe 9, a DCTF feed pipe 10, a drain valve 11, a discharge valve 12, a DCTF discharge pipe 13, a drain valve 14 and an exhaust pipe 15.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the present utility model will be further described below with reference to examples.
As shown in figure 1, a continuous automatic water diversion device comprises a water vapor condenser 1, a water diversion device 2, a discharge chute 3 and a receiving kettle 4, wherein a condensate discharging pipe 5 is arranged at the top of the water diversion device 2, one end of the condensate discharging pipe 5 extends into the water diversion device 2, the other end of the condensate discharging pipe is connected with the water vapor condenser 1, namely, the mixed liquid of DCTF and water after condensation enters the water diversion device 2 through the condensate discharging pipe 5, an overflow port is arranged on one side, close to the top, of the main body of the water diversion device 2, and is connected with a U-shaped pipe 6 through a pipeline, the other end of the U-shaped pipe 6 is connected with the water vapor kettle 8 through a return pipe 7, namely, when condensate is excessive, water overflows from the overflow port and enters the water vapor kettle 8,U type pipe 6 through the U-shaped pipe 6, and the liquid sealing effect is mainly achieved.
The top of the water separator 2 is connected with the top of the discharge chute 3 through a gas phase balance exhaust pipe 9, and the bottom of the water separator 2 is connected with the bottom of the discharge chute 3 through a DCTF feed pipe 10; the lateral part of the discharging groove 3 is also connected with the receiving kettle 4 through a DCTF discharging pipe 13, and the head end of the DCTF discharging pipe 13 is provided with a discharging valve 12.
The DCTF inlet pipe 10 is connected with the DCTF discharging pipe 13 through a pipeline, a discharging valve 14 is arranged on the pipeline connected with the DCTF inlet pipe 10 and the DCTF discharging pipe 13, and the discharging valve 14 is closed in normal operation.
The bottom of the U-shaped pipe 6 is also connected with the return pipe 7 through a pipeline, a drain valve 11 is arranged on the pipeline connected with the return pipe 7 at the bottom of the U-shaped pipe 6, and the drain valve 11 is closed during normal operation.
For convenient observation, the water knockout drum 2 and the discharge chute 3 are made of transparent glass materials.
The top of blown down tank 3 is equipped with blast pipe 15, and blast pipe 15 is connected to tail gas treatment system, and water knockout drum 2, blown down tank 3 are through gaseous balance pipe gaseous phase balanced back, and rethread blast pipe 15 is connected with tail gas treatment system, utilizes blast pipe 15 to discharge the non-condensable gas of system, balances the pressure of whole water distillation system, better realization this device's automatic water knockout drum effect.
In order to prevent the DCTF from flowing back to the steamer 8 without settling, the outlet of the condensate discharging pipe 5 is lower than the overflow opening in the upper side of the water separator 2. In addition, the installation height difference between the overflow port of the water separator 2 and the outlet of the DCTF feeding pipe 10 is controlled to be 3-5cm.
The working flow is as follows: the condensate mixed by DCTF and water enters the water separator 2 through the condensate discharging pipe 5 by the water vapor condenser, and layering is carried out in the water separator 2, wherein the DCTF is arranged at the lower layer, the water is arranged at the upper layer, the water level gradually rises along with the increase of the condensate, the DCTF feed liquid flows into the discharge chute 3 through the DCTF feed pipe 10, and enters the receiving kettle 4 through the DCTF discharge pipe 13 at the lower part of the discharge chute 3.
The technical features are known to those skilled in the art except the technical features described in the specification.
Claims (5)
1. The continuous automatic water diversion device comprises a water evaporation condenser (1), a water diversion device (2), a discharge chute (3) and a receiving kettle (4), and is characterized in that a condensate discharging pipe (5) is arranged at the top of the water diversion device (2), one end of the condensate discharging pipe (5) stretches into the water diversion device (2), the other end of the condensate discharging pipe is connected with the water evaporation condenser (1), an overflow port is arranged on one side, close to the top, of a main body of the water diversion device (2), the overflow port is connected with a U-shaped pipe (6) through a pipeline, the other end of the U-shaped pipe (6) is connected with the water evaporation kettle (8) through a return pipe (7), the top of the water diversion device (2) is connected with the top of the discharge chute (3) through a gas phase balance exhaust pipe (9), and the bottom of the water diversion device (2) is connected with the bottom of the discharge chute (3) through a DCTF feed pipe (10); the outlet of the DCTF feeding pipe (10) extends into the discharge chute (3) for installation;
and a DCTF discharging port is arranged at the side lower part of the discharging groove (3), and the DCTF discharging port is connected with the receiving kettle (4) through a DCTF discharging pipe (13).
2. A continuous automatic water diversion device according to claim 1, characterized in that the DCTF feeding pipe (10) is connected with the DCTF discharging pipe (13) through a pipeline, and a discharging valve (14) is arranged on the pipeline connecting the DCTF feeding pipe (10) with the DCTF discharging pipe (13).
3. A continuous automatic water diversion device according to claim 1, characterized in that the bottom of the U-shaped pipe (6) is also connected with a return pipe (7) through a pipeline, and a drain valve (11) is arranged on the pipeline of which the bottom of the U-shaped pipe (6) is connected with the return pipe (7).
4. A continuous automatic water diversion device according to claim 1, characterized in that the head end of the DCTF draining pipe (13) is provided with a discharge valve (12).
5. A continuous automatic water separator according to claim 1, characterized in that the top of the discharge chute (3) is provided with an exhaust pipe (15), the exhaust pipe (15) being connected to an exhaust gas treatment system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322332401.4U CN220736323U (en) | 2023-08-30 | 2023-08-30 | Continuous automatic water diversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322332401.4U CN220736323U (en) | 2023-08-30 | 2023-08-30 | Continuous automatic water diversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220736323U true CN220736323U (en) | 2024-04-09 |
Family
ID=90569218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322332401.4U Active CN220736323U (en) | 2023-08-30 | 2023-08-30 | Continuous automatic water diversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220736323U (en) |
-
2023
- 2023-08-30 CN CN202322332401.4U patent/CN220736323U/en active Active
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