CN210496402U - Reaction unit with interior cooling function - Google Patents
Reaction unit with interior cooling function Download PDFInfo
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- CN210496402U CN210496402U CN201921160649.4U CN201921160649U CN210496402U CN 210496402 U CN210496402 U CN 210496402U CN 201921160649 U CN201921160649 U CN 201921160649U CN 210496402 U CN210496402 U CN 210496402U
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- reaction
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- heat exchanger
- cooling function
- pipe
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 74
- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 1
- 239000012295 chemical reaction liquid Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012847 fine chemical Substances 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The technical proposal of the utility model relates to a reaction device with an internal cooling function, which belongs to the chemical equipment and the technical field; the device is formed by combining a reaction kettle, an external heat exchanger, a circulating pump and a liquid guiding device; the method effectively solves the problem of temperature reduction delay caused by the over-small heat exchange area of the unit volume of the reaction kettle, and is very suitable for exothermic reaction and reaction which is fast in temperature reduction; the utility model discloses technical scheme a reaction unit with interior cooling function still have simple structure, simple operation, the effectual, the low characteristics of energy consumption of cooling, have higher popularization and application and worth.
Description
Technical Field
The utility model belongs to the technical field of fine chemical equipment, in particular to reaction unit with interior cooling function.
Background
In the process of medicine synthesis and fine chemical engineering operation, strong exothermic reactions such as oxidation, acid dilution, acid-base neutralization and the like are often encountered, and for the strong exothermic reactions, if the strong exothermic reactions are not properly controlled or equipment does not exert force, safety accidents or the defect of low production efficiency easily occur.
Taking the process of synthesizing glyoxylic acid by oxidizing glyoxal with nitric acid as an example, the whole oxidation process is a strong exothermic reaction process, and the thermal balance can be just barely maintained by continuously and uninterruptedly introducing cooling water into the jacket of the reaction kettle to carry out temperature reduction in the process of dropwise adding the nitric acid. If the nitric acid is dripped too fast, the safety accidents such as material flushing, pot overflowing and the like are easily caused, and the main reason is that the heat exchange area of the unit volume of the reaction kettle is too low to meet the process requirement.
Usually, one 5m3The heat exchange area of the reaction kettle is 13m2The area to volume ratio is 2.6; one table with a height of 3m3The heat exchange area of the reaction kettle is 9.7m2The area to volume ratio was 3.23; area of one table 2m3The heat exchange area of the reaction kettle is 7.2m2The area to volume ratio is 3.6; one table with 1m3The heat exchange area of the reaction kettle is 4.5m2The area to volume ratio is 4.5; one table with the thickness of 0.5m3The heat exchange area of the reaction kettle is 2.6m2The area to volume ratio was 5.2. The larger the volume of the reaction kettle is, the smaller the heat exchange area per unit volume is; for exothermic reactions, the smaller the heat exchange area per unit volume is, the more unfavorable the heat dissipation and temperature reduction are; however, too small a reactor is selected to be disadvantageous in terms of production efficiency.
In the actual operation process, the balance between safe production and production efficiency is realized by taking measures of prolonging the feeding time, the reaction time, reducing the temperature of cooling water and the like.
Disclosure of Invention
Aiming at solving the problems, the reaction device with the internal cooling function is designed and assembled, and the technical innovation point of the reaction device is the thinking of introducing an external heat exchanger and pumping reaction liquid upwards, so that the problem of cooling delay caused by the fact that the heat exchange area of the unit volume of the reaction kettle is too small is effectively solved, and the potential safety hazard caused by bottom leakage of the reaction liquid is avoided due to the design of the pumping device upwards; the utility model discloses technical scheme a reaction unit with interior cooling function still have simple structure, simple operation, the effectual, the low characteristics of energy consumption of cooling, have higher popularization and application and worth.
The technical scheme of the utility model provides a reaction unit with interior cooling function, it includes reation kettle, draws liquid ware, circulating pump, external heat exchanger, liquid feeding pipe, fluid distributor, liquid return pipe, blow-down pipe, its characterized in that, the external heat exchanger is being connected through liquid return pipe above the reation kettle, external heat exchanger is through fluid distributor, liquid feeding pipe and circulating pump link to each other, the circulating pump is through drawing liquid ware and connecting reation kettle, above-mentioned part organic combination constitutes the utility model discloses a reaction unit with interior cooling function; the design can realize the external circulation and internal cooling of the reaction liquid and can make up the defect of insufficient heat exchange area of the jacket of the reaction kettle; on the other hand, the reaction solution is drawn out from the upper side of the reaction vessel in order to avoid potential safety hazards due to leakage at the bottom of the reaction vessel.
Preferably, the technical solution of the present invention is a reaction device with internal cooling function, wherein the external heat exchanger is a heat exchanger assembly formed by connecting 1-4 tubes or graphite heat exchangers in parallel, and the heat exchange area is 40-100 m2(ii) a The design aims to use 1-4 heat exchangers connected in parallel to form a heat exchanger combination for cooling reaction liquid when one heat exchanger can not meet the cooling requirement in case of severe exothermic reaction.
Preferably, the reaction device with internal cooling function of the present invention comprises a fluid distributor main body which is a PP tube with a length of 100-; this is designed to allow the reaction solution to be uniformly dispersed in the different heat exchangers.
Preferably, the technical scheme of the utility model the reaction unit with interior cooling function, its characterized in that, draw liquid ware main part be a diameter 300-; the design can ensure that the liquid-guiding device is filled with reaction liquid together, and the smooth operation of material feeding and pumping can be ensured.
The utility model discloses technical scheme a reaction unit with interior cooling function, its produced obvious beneficial effect includes following 3 aspects: 1, implementing external circulation and internal cooling to quickly cool the temperature of the reaction liquid to a target temperature so as to control the exothermic reaction; 2, the design that the reaction liquid is extracted from the upper side can avoid potential safety hazards caused by leakage at the bottom of the reaction kettle; 3, the feeding time and the reaction time are shortened, so that the production efficiency is relatively favorable.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic view of a reaction device with an internal cooling function according to an embodiment of the present invention.
In fig. 1: the system comprises a reaction kettle 01, cooling water inlets 02 and 07, cooling water outlets 03 and 08, a circulating pump 04, a liquid guiding device 05, an external heat exchanger 06, an emptying pipe 09, a liquid feeding pipe 10, a fluid distributor 11 and a liquid return pipe 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described with reference to the accompanying drawings.
The reaction device with an internal cooling function in the embodiment of the present embodiment includes: the system comprises a reaction kettle 01, cooling water inlets 02 and 07, cooling water outlets 03 and 08, a circulating pump 04, a liquid guiding device 05, an external heat exchanger 06, an emptying pipe 09, a liquid feeding pipe 10, a fluid distributor 11 and a liquid return pipe 12; the reaction device is characterized in that the upper surface of a reaction kettle 01 is connected with an external heat exchanger 06 through a liquid return pipe 12, the external heat exchanger 06 is connected with a circulating pump 04 through a fluid distributor 11 and an upper liquid pipe 10, the circulating pump 04 is connected with the reaction kettle 01 through a liquid guide pipe 05, and the components are organically combined to form the reaction device with the internal cooling function; the design can realize the external circulation and internal cooling of the reaction liquid and can make up the defect of insufficient heat exchange area of the jacket of the reaction kettle; on the other hand, the reaction solution is drawn out from the upper side of the reaction vessel in order to avoid potential safety hazards due to leakage at the bottom of the reaction vessel.
Go toStep by step, the reaction apparatus with internal cooling function according to the embodiment of the present embodiment is characterized in that the external heat exchanger is a heat exchanger combination formed by connecting 1 to 4 tube arrays or graphite heat exchangers in parallel, and the heat exchange area is 40 to 100 m2(ii) a The design aims to use 1-4 heat exchangers connected in parallel to form a heat exchanger combination for cooling reaction liquid when one heat exchanger can not meet the cooling requirement in case of severe exothermic reaction.
Further, the reaction apparatus with internal cooling function in the embodiment of the present embodiment is characterized in that the fluid distributor main body is a PP tube with a length of 100-; this is designed to allow the reaction solution to be uniformly dispersed in the different heat exchangers.
Further, the reaction apparatus with internal cooling function in the embodiment of the present embodiment is characterized in that the liquid guiding device main body is a PP cylinder with a diameter of 300-; the design can ensure that the liquid-leading device is filled with reaction liquid together, and can ensure the smooth operation of material-pumping
The reaction device with the internal cooling function in the embodiment of the present specific embodiment has the following simple working processes: firstly, a certain amount of pure water or reaction liquid is injected into the liquid guiding device 05, the circulating pump 04 is started, the reaction liquid is pumped out from the upper part of the reaction kettle 01, enters the external heat exchanger 06 through the liquid guiding device 05, the circulating pump 04, the liquid feeding pipe 10 and the fluid distributor 11, and is cooled and cooled, and then returns to the reaction kettle 01 through the liquid returning pipe 12.
So the device, the utility model discloses technical scheme a reaction unit with interior cooling function, obvious beneficial effect that it brought shows in following 3 aspects: 1, implementing external circulation and internal cooling to quickly cool the temperature of the reaction liquid to a target temperature so as to control the exothermic reaction; 2, the design that the reaction liquid is extracted from the upper side can avoid potential safety hazards caused by leakage at the bottom of the reaction kettle; 3, the feeding time and the reaction time are shortened, so that the production efficiency is relatively favorable.
According to the device, the utility model discloses technical scheme a reaction unit with interior cooling function, it still has simple structure, simple operation, the effectual, the low characteristics of energy consumption of cooling, has higher popularization and application and worth.
Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the present invention is to be accorded the widest scope consistent with the principles and novel features described herein.
Claims (4)
1. A reaction device with an internal cooling function comprises a reaction kettle, a liquid guiding device, a circulating pump, an external heat exchanger, a liquid feeding pipe, a fluid distributor, a liquid returning pipe and an emptying pipe, and is characterized in that the upper surface of the reaction kettle is connected with the external heat exchanger through the liquid returning pipe, the external heat exchanger is connected with the circulating pump through the fluid distributor and the liquid feeding pipe, the circulating pump is connected with the reaction kettle through the liquid guiding device, and the components are organically combined to form the reaction device with the internal cooling function.
2. The reaction device with the function of internally cooling according to claim 1, wherein the external heat exchanger is a heat exchanger combination formed by connecting 1-4 tube arrays or graphite heat exchangers in parallel, and the heat exchange area is 40-100 m2。
3. The reaction device with internal temperature reduction function as claimed in claim 1, wherein the fluid distributor body is a PP tube with a length of 100-300cm and a diameter of 200-300mm, and two ends are sealed, one side of the PP tube is provided with an opening connected to the circulation pump, and the other side is provided with 1-4 openings respectively connected to different external heat exchangers.
4. The reaction apparatus as claimed in claim 1, wherein the liquid guiding device is a PP cylinder with a diameter of 300-400mm and a height of 100-150cm and sealed at the top and bottom, the upper opening of the liquid guiding device is inserted into the bottom of the reaction vessel through a pipe from the top of the reaction vessel, and the lower opening of the liquid guiding device is connected to the circulating pump through a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160649.4U CN210496402U (en) | 2019-07-23 | 2019-07-23 | Reaction unit with interior cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160649.4U CN210496402U (en) | 2019-07-23 | 2019-07-23 | Reaction unit with interior cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210496402U true CN210496402U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921160649.4U Active CN210496402U (en) | 2019-07-23 | 2019-07-23 | Reaction unit with interior cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210496402U (en) |
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2019
- 2019-07-23 CN CN201921160649.4U patent/CN210496402U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 461500 eastern part of Wei Wu Road, Changge, Xuchang, Henan Patentee after: Xintiandi Pharmaceutical Co.,Ltd. Address before: 461500 eastern part of Wei Wu Road, Changge, Xuchang, Henan Patentee before: HENAN NEWLAND PHARMACEUTICAL Co.,Ltd. |