CN220277783U - Flushing device in continuous crystallization process of TMP (TMP) product - Google Patents
Flushing device in continuous crystallization process of TMP (TMP) product Download PDFInfo
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- CN220277783U CN220277783U CN202321820433.2U CN202321820433U CN220277783U CN 220277783 U CN220277783 U CN 220277783U CN 202321820433 U CN202321820433 U CN 202321820433U CN 220277783 U CN220277783 U CN 220277783U
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- flushing
- control valve
- pipe
- feeding pipe
- communicated
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 79
- 238000002425 crystallisation Methods 0.000 title claims abstract description 24
- 230000008025 crystallization Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000005119 centrifugation Methods 0.000 claims description 4
- 239000012452 mother liquor Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 150000003839 salts Chemical class 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a flushing device in a TMP product continuous crystallization process, belongs to the technical field of industrial crystallization, and solves the technical problems of salt precipitation and blockage of a pipeline, inaccurate liquid level, poor stirring and mixing effect and the like in the existing continuous crystallization process. The solution scheme is as follows: a flushing device in a TMP product continuous crystallization process comprises a flushing component, a tubular heat exchanger, a crystallizer, a temperature control component and a control component; the flushing assembly comprises a flushing body, a communication coil is arranged in the flushing body, one end of the communication coil is communicated with a steam inlet, and the other end of the communication coil is communicated with a condensate drain pipe; the left side wall of the flushing body is provided with a first liquid level meter, the right side wall of the flushing body is provided with a thermometer, and the temperature control assembly comprises a centrifugal pump, a first control valve, a second control valve, a third control valve and a fourth control valve. Compared with the prior art, the utility model has the advantages of timing flushing the inner wall of the shell and tube heat exchanger and the liquid level meter, improving the stirring and mixing effect, realizing continuous operation production and the like.
Description
Technical Field
The utility model belongs to the technical field of industrial crystallization, and particularly relates to a flushing device in a continuous crystallization process of TMP (TMP) products.
Background
Industrial crystallization technology is widely used as an industrial method for refining and purifying in petrochemical industry, fine chemical industry, biochemistry, medicine, pesticide, dye, fertilizer and other production. The continuous crystallization has become the trend of industrial crystallization development, and the continuous crystallization control core is to control continuous material inlet and outlet liquid level balance and not wall built-up in the cooling process, in current continuous crystallization equipment, salt can condense on the inner wall of crystallizer and the outer heat exchanger inner wall after crystallization, leads to cooling difficulty, can not realize continuous production, can adhere to the gauge stick of level gauge, leads to the level gauge unable accurate monitoring liquid level balance.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the technical problems of salt formation and blockage, inaccurate liquid level, poor stirring and mixing effect and the like of a pipeline in the existing continuous crystallization process, the utility model provides a flushing device in the continuous crystallization process of TMP (total organic polymer) products.
The utility model is realized by the following technical scheme.
The utility model provides a flushing device in a continuous crystallization process of TMP (total thickness reduction) products, which comprises a flushing component, a tubular heat exchanger, a crystallizer, a temperature control component and a control component, wherein the flushing component is connected with the tubular heat exchanger;
the washing assembly is arranged on one side of the tubular heat exchanger and the crystallizer and comprises a washing body, a communication coil is arranged in the washing body, one end of the communication coil is communicated with a steam inlet, a steam control valve is arranged between the communication coil and the steam inlet, the other end of the communication coil is communicated with a condensate drain pipe, and a drain valve is arranged on the condensate drain pipe;
the top wall of the flushing body is provided with a flushing liquid inlet and a return pipe, the return pipe is communicated with an upper interface at the upper end of the right side wall of the tubular heat exchanger, the left side wall of the flushing body is provided with a first liquid level meter, the right side wall of the flushing body is provided with a thermometer, the right side wall of the flushing body is provided with a feeding pipe below the thermometer, the feeding pipe is communicated with a first feeding pipe and a second feeding pipe, the first feeding pipe is communicated with a lower interface at the lower end of the right side wall of the tubular heat exchanger, and the second feeding pipe is communicated with a second liquid level meter at the right side wall of the crystallizer;
the top of the crystallizer is provided with a circulating pump, the outlet of the crystallizer is communicated with the circulating pump outlet, the outlet of the circulating pump is communicated with a first feeding pipe through a first circulating pipe, and the inlet of the crystallizer is communicated with a feed back pipe through a second circulating pipe;
the temperature control assembly is arranged on the feeding pipe, the first feeding pipe, the second feeding pipe, the first circulating pipe and the second circulating pipe, and comprises a centrifugal pump, a first control valve, a second control valve, a third control valve and a fourth control valve, wherein the centrifugal pump is arranged on the feeding pipe and is positioned between the flushing body and the first feeding pipe, the first control valve is arranged on the first feeding pipe and is positioned between the feeding pipe and the first circulating pipe, the second control valve is arranged on the first circulating pipe, the third control valve is arranged on the second circulating pipe, and the fourth control valve is arranged on the second feeding pipe;
the control assembly is electrically connected with the steam control valve, the drain valve, the first liquid level meter, the second liquid level meter, the circulating pump, the centrifugal pump, the first control valve, the second control valve, the third control valve and the fourth control valve respectively.
Further, a manhole is arranged at the top of the flushing body.
Further, a filter screen is arranged above the communication coil in the flushing body.
Further, the solvent in the flushing body is ethanol or methanol or isopropanol or mother liquor after centrifugation.
Further, the temperature of the solvent in the flushing body is 30-40 ℃.
Further, a cooling water inlet is formed in the upper portion of the left side wall of the shell and tube heat exchanger, and a cooling water outlet is formed in the lower portion of the left side wall of the shell and tube heat exchanger.
The beneficial effects achieved by the utility model are as follows: according to the utility model, the flushing component and the temperature control component are selected, the temperature in the flushing body, the tube array heat exchanger and the crystallizer is controlled through the temperature control component, ethanol, methanol, isopropanol or mother liquor after centrifugation is selected for flushing at fixed time, the inner wall of the tube array heat exchanger and the liquid level meter which are fouled are flushed, the phenomenon that the mixed flow effect is poor due to the blockage of the tube array heat exchanger and the fact that the liquid level is lower than a guide cylinder in the continuous operation of the crystallizer due to inaccurate liquid level meter is avoided, the production accident of continuous operation cannot be realized, the operation is simple and easy, and the purpose of continuous production is achieved.
Compared with the prior art, the utility model has the advantages of timing flushing the inner wall of the shell and tube heat exchanger and the liquid level meter, improving the stirring and mixing effect, realizing continuous operation production and the like.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a tubular heat exchanger; 2. a crystallizer; 3. flushing the body; 4. a communication coil; 5. a steam inlet; 6. a steam control valve; 7. a condensed water drain pipe; 8. a drain valve; 9. a rinse inlet; 10. a feed back pipe; 11. a first level gauge; 12. a thermometer; 13. a feed pipe; 14. a first feed tube; 15. a second feed tube; 16. a second level gauge; 17. a circulation pump; 18. a first circulation pipe; 19. a second circulation pipe; 20. a centrifugal pump; 21. a first control valve; 22. a second control valve; 23. a third control valve; 24. a fourth control valve; 25. a manhole; 26. a filter screen; 27. a cooling water inlet; 28. and a cooling water outlet.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1, a flushing device in a continuous crystallization process of TMP (TMP) product comprises a flushing component, a tube array heat exchanger 1, a crystallizer 2, a temperature control component and a control component.
The washing assembly is arranged on one side of the shell and tube heat exchanger 1 and the crystallizer 2, the washing assembly comprises a washing body 3, a communication coil 4 is arranged in the washing body 3, one end of the communication coil 4 is communicated with a steam inlet 5, a steam control valve 6 is arranged between the communication coil 4 and the steam inlet 5, the steam control valve 6 mainly controls steam to enter the communication coil 4, the other end of the communication coil 4 is communicated with a condensate drain pipe 7, a drain valve 8 is arranged on the condensate drain pipe 7, a manhole 25 is arranged at the top of the washing body 3, a filter screen 26 is arranged above the communication coil 4 in the washing body 3, the filter screen 26 mainly filters solid impurities brought back after the inside washing of the shell and tube heat exchanger 1, and the solid impurities in the filter screen 26 are cleaned through the manhole 25.
The top wall of the flushing body 3 is provided with a flushing liquid inlet 9 and a feed-back pipe 10, the solvent in the flushing body 3 is ethanol or methanol or isopropanol or mother liquor after centrifugation, and the temperature of the solvent in the flushing body 3 is 30-40 ℃. The feed back pipe 10 is communicated with an upper connector at the upper end of the right side wall of the tube array heat exchanger 1, and the solution after being washed from the interior of the tube array heat exchanger 1 returns to the interior of the washing body 3 from the feed back pipe 10. The left side wall of the flushing body 3 is provided with a first liquid level meter 11, when the display value of the first liquid level meter 11 is lower than a set value, the solvent required by the flushing body 3 is timely supplemented, and impurities on the filter screen 26 can be cleaned. The right side wall of the flushing body 3 is provided with a thermometer 12, when the display value of the thermometer 12 is lower than a set value, the steam control valve 6 is opened, and when the display value of the thermometer 12 is higher than the set value, the steam control valve 6 is closed. The right side wall of the flushing body 3 is provided with a feeding pipe 13 below the thermometer 12, the feeding pipe 13 is communicated with a first feeding pipe 14 and a second feeding pipe 15, the first feeding pipe 14 is communicated with a lower interface of the lower end of the right side wall of the tubular heat exchanger 1, the second feeding pipe 15 is communicated with a second liquid level meter 16 of the right side wall of the crystallizer 2, flushing liquid from the flushing body 3 enters the tubular heat exchanger 1 along the feeding pipe 13 and the first feeding pipe 14, and enters the crystallizer 2 along the feeding pipe 13 and the second feeding pipe 15. The cooling water inlet 27 is formed in the upper portion of the left side wall of the shell and tube heat exchanger 1, the cooling water outlet 28 is formed in the lower portion of the left side wall of the shell and tube heat exchanger 1, and cooling water enters the shell and tube heat exchanger 1 from the cooling water inlet 27 to cool the shell and tube heat exchanger 1.
The top of the crystallizer 2 is provided with a circulating pump 17, the outlet of the crystallizer 2 is communicated with the outlet of the circulating pump 17, the outlet of the circulating pump 17 is communicated with a first feeding pipe 14 through a first circulating pipe 18, the inlet of the crystallizer 2 is communicated with a feed back pipe 10 through a second circulating pipe 19, and the first circulating pipe 18 and the second circulating pipe 19 mainly cool down the solution in the crystallizer 2.
The temperature control assembly is arranged on the feeding pipe 13, the first feeding pipe 14, the second feeding pipe 15, the first circulating pipe 18 and the second circulating pipe 19, the temperature control assembly comprises a centrifugal pump 20, a first control valve 21, a second control valve 22, a third control valve 23 and a fourth control valve 24, the centrifugal pump 20 is arranged on the feeding pipe 13 and is positioned between the flushing body 3 and the first feeding pipe 14, the first control valve 21 is arranged on the first feeding pipe 14 and is positioned between the feeding pipe 13 and the first circulating pipe 18, the second control valve 22 is arranged on the first circulating pipe 18, the third control valve 23 is arranged on the second circulating pipe 19, the fourth control valve 24 is arranged on the second feeding pipe 15, and the control assembly is respectively electrically connected with the steam control valve 6, the drain valve 8, the first liquid level meter 11, the second liquid level meter 16, the circulating pump 17, the centrifugal pump 20, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24. At intervals of 0.5h-3h, the third control valve 23 is closed, the second control valve 22 is closed, the first control valve 21 is opened, the centrifugal pump 20 is opened, and flushing liquid enters the interior of the tube array heat exchanger 1 along the feeding tube 13 and the first feeding tube 14 and returns to the interior of the flushing body 3 through the return tube 10; the centrifugal pump 20 stops and the first control valve 21 is closed, the second control valve 22 and the third control valve 23 are opened simultaneously after the flushing time is 15s-60s each time, the system can realize continuous operation, and the blocking of the inner pipe wall of the shell and tube heat exchanger 1 does not need to be cleaned by stopping; the interval is 0.5h-1h, the fourth control valve 24 is opened, the centrifugal pump 20 is opened, the flushing liquid enters the crystallizer 2 along the feeding pipe 13 and the second feeding pipe 15 to flush the second liquid level meter 16, the flushing time is 10s-35s each time, and the flushing liquid directly flows into the crystallizer 2 without being discharged.
The working process of the utility model is as follows:
the control components are respectively and electrically connected with the steam control valve 6, the drain valve 8, the first liquid level meter 11, the second liquid level meter 16, the circulating pump 17, the centrifugal pump 20, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24;
flushing liquid enters the flushing body 3 from the flushing liquid inlet 9, the interval is 0.5h-3h, the third control valve 23 is closed, the second control valve 22 is closed, the first control valve 21 is opened, the centrifugal pump 20 is opened, the flushing liquid enters the interior of the shell-and-tube heat exchanger 1 along the feeding pipe 13 and the first feeding pipe 14, the flushing liquid returns to the flushing body 3 through the feeding pipe 10, the flushing time is 15s-60s each time, the flushing setting time is finished, the centrifugal pump 20 is stopped, the first control valve 21 is closed, the second control valve 22 and the third control valve 23 are simultaneously opened, the system can realize continuous operation, and the blocking of the inner pipe wall of the shell-and-tube heat exchanger 1 does not need to be stopped and cleaned; the interval is 0.5h-1h, the fourth control valve 24 is opened, the centrifugal pump 20 is opened, the flushing liquid enters the crystallizer 2 along the feeding pipe 13 and the second feeding pipe 15 to flush the second liquid level meter 16, the flushing time is 10s-35s each time, and the flushing liquid directly flows into the crystallizer 2 without being discharged. In the process, when the display value of the first liquid level meter 11 is lower than the set value, the solvent needed for flushing the interior of the body 3 is timely replenished, impurities on the filter screen 26 are cleaned, when the display value of the thermometer 12 is lower than the set value, the steam control valve 6 is opened, and when the display value of the thermometer 12 is higher than the set value, the steam control valve 6 is closed.
While the embodiments of the present utility model have been described in detail with reference to the drawings, the present utility model is not limited to the above embodiments, and modifications, equivalent substitutions, improvements, etc. can be made within the scope of the present utility model as will be within the spirit and principle of the present utility model.
Claims (6)
1. A flushing device in a continuous crystallization process of a TMP product, which is characterized in that: comprises a flushing component, a tubular heat exchanger (1), a crystallizer (2), a temperature control component and a control component;
the washing assembly is arranged on one side of the tubular heat exchanger (1) and one side of the crystallizer (2), the washing assembly comprises a washing body (3), a communication coil (4) is arranged in the washing body (3), one end of the communication coil (4) is communicated with a steam inlet (5), a steam control valve (6) is arranged between the communication coil (4) and the steam inlet (5), the other end of the communication coil is communicated with a condensed water drain pipe (7), and a drain valve (8) is arranged on the condensed water drain pipe (7);
the top wall of the flushing body (3) is provided with a flushing liquid inlet (9) and a return pipe (10), the return pipe (10) is communicated with an upper interface at the upper end of the right side wall of the tubular heat exchanger (1), the left side wall of the flushing body (3) is provided with a first liquid level meter (11), the right side wall of the flushing body (3) is provided with a thermometer (12), the right side wall of the flushing body (3) is provided with a feeding pipe (13) below the thermometer (12), the feeding pipe (13) is communicated with a first feeding pipe (14) and a second feeding pipe (15), the first feeding pipe (14) is communicated with a lower interface at the lower end of the right side wall of the tubular heat exchanger (1), and the second feeding pipe (15) is communicated with a second liquid level meter (16) at the right side wall of the crystallizer (2);
the top of the crystallizer (2) is provided with a circulating pump (17), the outlet of the crystallizer (2) is communicated with the outlet of the circulating pump (17), the outlet of the circulating pump (17) is communicated with a first feeding pipe (14) through a first circulating pipe (18), and the inlet of the crystallizer (2) is communicated with a feed back pipe (10) through a second circulating pipe (19);
the temperature control assembly is arranged on a feeding pipe (13), a first feeding pipe (14), a second feeding pipe (15), a first circulating pipe (18) and a second circulating pipe (19), the temperature control assembly comprises a centrifugal pump (20), a first control valve (21), a second control valve (22), a third control valve (23) and a fourth control valve (24), the centrifugal pump (20) is arranged on the feeding pipe (13) and is positioned between the flushing body (3) and the first feeding pipe (14), the first control valve (21) is arranged on the first feeding pipe (14) and is positioned between the feeding pipe (13) and the first circulating pipe (18), the second control valve (22) is arranged on the first circulating pipe (18), the third control valve (23) is arranged on the second circulating pipe (19), and the fourth control valve (24) is arranged on the second feeding pipe (15).
The control assembly is electrically connected with the steam control valve (6), the drain valve (8), the first liquid level meter (11), the second liquid level meter (16), the circulating pump (17), the centrifugal pump (20), the first control valve (21), the second control valve (22), the third control valve (23) and the fourth control valve (24) respectively.
2. A flushing device for a continuous crystallization process of TMP product as defined in claim 1, wherein: a manhole (25) is arranged at the top of the flushing body (3).
3. A flushing device for a continuous crystallization process of TMP product as defined in claim 1, wherein: a filter screen (26) is arranged above the communication coil pipe (4) in the flushing body (3).
4. A flushing device for a continuous crystallization process of TMP product as defined in claim 1, wherein: the solvent in the flushing body (3) is ethanol or methanol or isopropanol or mother liquor after centrifugation.
5. A flushing device for a continuous crystallization process of TMP product as defined in claim 4, wherein: the temperature of the solvent in the flushing body (3) is 30-40 ℃.
6. A flushing device for a continuous crystallization process of TMP product as defined in claim 1, wherein: a cooling water inlet (27) is formed in the upper portion of the left side wall of the tubular heat exchanger (1), and a cooling water outlet (28) is formed in the lower portion of the left side wall of the tubular heat exchanger (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321820433.2U CN220277783U (en) | 2023-07-11 | 2023-07-11 | Flushing device in continuous crystallization process of TMP (TMP) product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321820433.2U CN220277783U (en) | 2023-07-11 | 2023-07-11 | Flushing device in continuous crystallization process of TMP (TMP) product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220277783U true CN220277783U (en) | 2024-01-02 |
Family
ID=89342269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321820433.2U Active CN220277783U (en) | 2023-07-11 | 2023-07-11 | Flushing device in continuous crystallization process of TMP (TMP) product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220277783U (en) |
-
2023
- 2023-07-11 CN CN202321820433.2U patent/CN220277783U/en active Active
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