CN217940135U - Pyran preparation is with main, vice reactor continuity reaction transformation device - Google Patents
Pyran preparation is with main, vice reactor continuity reaction transformation device Download PDFInfo
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- CN217940135U CN217940135U CN202221440015.6U CN202221440015U CN217940135U CN 217940135 U CN217940135 U CN 217940135U CN 202221440015 U CN202221440015 U CN 202221440015U CN 217940135 U CN217940135 U CN 217940135U
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- pyran
- reactor
- main
- tank
- metering
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- MGADZUXDNSDTHW-UHFFFAOYSA-N 2H-pyran Chemical compound C1OC=CC=C1 MGADZUXDNSDTHW-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000009466 transformation Effects 0.000 title claims abstract description 11
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 33
- 238000005516 engineering process Methods 0.000 abstract description 3
- 150000004880 oxines Chemical class 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XCYWUZHUTJDTGS-UHFFFAOYSA-N 2-methoxy-3,4-dihydro-2h-pyran Chemical compound COC1CCC=CO1 XCYWUZHUTJDTGS-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a pyran preparation is with main, vice reactor continuity reaction transformation device, including metering mechanism and reaction mechanism, metering mechanism includes methyl ether metering tank, methyl ether weighing tank, acrolein metering tank, acrolein weighing tank, pyran metering tank and circulating pump, methyl ether metering tank is linked together through methyl ether weighing tank and pyran metering tank, acrolein metering tank is linked together through acrolein weighing tank and pyran metering tank, the bottom of pyran metering tank is provided with the circulating pump, reaction mechanism includes electromagnetism three-way valve, host computer, pyran main reactor, pyran vice reactor and steam pocket. This pyran preparation is with main, vice reactor continuity reaction transformation device has the advantage that improves product conversion rate, yield, has solved the synthetic former technology of pyran and has used reation kettle to go on, is once filling, once reacts after accomplishing, carries out next time reaction again, is an intermittent type nature reaction, can not be continuous, has seriously influenced production efficiency's problem.
Description
Technical Field
The utility model relates to a pyran preparation equipment technical field specifically is a pyran preparation is with main, vice reactor continuity reaction transformation device.
Background
The pyran method is also called acrolein method, it is produced by addition reaction of acrolein and vinyl methyl ether to produce 2-methoxy-3, 4-dihydropyran, which is hydrolyzed under the action of acid catalyst to obtain crude glutaraldehyde product, which is decolorized, filtered and distilled to obtain glutaraldehyde. The method has the advantages of low investment, low cost, simple process, high yield, good product quality and convenient operation, and is the main mode for industrial production of glutaraldehyde at home and abroad at present.
The original technology for synthesizing the pyran uses a reaction kettle, the reaction kettle is used for carrying out the next reaction after one-time charging and one-time reaction are finished, the reaction kettle is intermittent reaction and can not be continuous, the production efficiency is seriously influenced, particularly, the reaction in the kettle type is difficult to control the temperature and the pressure, the continuous stability and the balance can not be kept, the reaction kettle used in the original technology needs to be kept at the temperature of 190-240 ℃ and the pressure of 1.4-2.1 MPa, the adjustment can not be carried out along with the different requirements of the chemical reaction on the temperature and the pressure in the initial stage and the final stage, and the product conversion rate and the yield are also seriously influenced, so the main reactor and the auxiliary reactor continuous reaction transformation device for preparing the pyran is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pyran preparation is with main, vice reactor continuity reaction transformation device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a main reactor and an auxiliary reactor continuity reaction transformation device for pyran preparation comprises a metering mechanism and a reaction mechanism, wherein the metering mechanism comprises a methyl ether metering tank, a methyl ether weighing tank, an acrolein metering tank, an acrolein weighing tank, a pyran metering tank and a circulating pump;
the reaction mechanism comprises an electromagnetic three-way valve, a host, a pyran main reactor, a pyran secondary reactor and a steam drum, wherein the pyran main reactor and the pyran secondary reactor are communicated through the electromagnetic three-way valve, and the pyran main reactor and the pyran secondary reactor are both provided with the steam drum.
As a further aspect of the present invention: and the output end of the pyran metering tank of the metering mechanism is communicated with the electromagnetic three-way valve through a feed pump.
As a further aspect of the present invention: the pyran main reactor and the pyran auxiliary reactor are respectively electrically connected with a host through a first liquid level sensor and a second liquid level sensor, and the host controls the work of the electromagnetic three-way valve.
As a further aspect of the present invention: and both the pyran main reactor and the pyran auxiliary reactor are provided with air valves.
As the utility model discloses further scheme again: the pyran main reactor is characterized in that a liquid inlet pipe, a first liquid level sensor and an exhaust pipe are arranged at the top of the pyran main reactor, an air valve is arranged inside the exhaust pipe, and the outer side of the pyran main reactor is communicated with a liquid discharge pipe.
As the utility model discloses further scheme again: the pyran main reactor and the pyran secondary reactor are identical in structure, the two liquid discharge pipes are finally converged to one pipeline for conveying, and one-way valves are arranged inside the two liquid discharge pipes.
Compared with the prior art, the beneficial effects of the utility model are that:
this pyran preparation is with main, vice reactor continuity reaction transformation device, the host computer judges through the liquid level data that first level sensor and second level sensor received whether the pyran is full, and the transmission of control electromagnetism three-way valve control switching pyran, utilize pyran main reactor reaction time, pyran vice reactor flowing back to this is replaced mutually, keeps flowing back continuous, makes its maintenance temperature and pressure that can be good in follow-up rough pyran processing and the fine pyran course of working, improves product conversion, yield.
Drawings
FIG. 1 is a system diagram of a continuous reaction modification device of a primary reactor and a secondary reactor for pyran production;
FIG. 2 is a schematic diagram of a pyran main reactor in a main reactor and a secondary reactor continuous reaction modification device for pyran preparation.
In the figure: 1. a pyran primary reactor; 2. a liquid inlet pipe; 3. an exhaust pipe; 4. an air valve; 5. a first liquid level sensor; 6. and a liquid discharge pipe.
Detailed Description
Referring to fig. 1-2, in the embodiment of the present invention, a device for reforming a main reactor and a sub-reactor for pyran production by continuous reaction, includes a metering mechanism and a reaction mechanism, where the metering mechanism includes a methyl ether metering tank, a methyl ether weighing tank, an acrolein metering tank, an acrolein weighing tank, a pyran metering tank and a circulating pump, the methyl ether metering tank is communicated with the pyran metering tank through the methyl ether weighing tank, the acrolein metering tank is communicated with the pyran metering tank through the acrolein weighing tank, and the bottom of the pyran metering tank is provided with the circulating pump;
the reaction mechanism comprises an electromagnetic three-way valve, a host, a pyran main reactor 1, a pyran secondary reactor and a steam pocket, wherein the pyran main reactor 1 and the pyran secondary reactor are communicated through the electromagnetic three-way valve, the pyran main reactor 1 and the pyran secondary reactor are both provided with the steam pocket, the concept of the steam pocket means that air pressure is reduced or increased through water circulation, the steam pocket can be understood as the change of the air pressure formed after the fusion of gas and moisture, the air and water molecules in the limit pressure can cause the pressure of the gas to be increased, and the high pressure is caused to reach a certain value to generate pressure collection molecules.
In a preferred embodiment, the output end of the pyran metering tank of the metering mechanism is communicated with the electromagnetic three-way valve through a feeding pump, and the feeding pump pumps the tank body in the pyran metering tank out to the interior of the pyran main reactor 1 or the pyran secondary reactor.
In a preferred embodiment, the pyran main reactor 1 and the pyran secondary reactor are respectively and electrically connected with a host machine through a first liquid level sensor 5 and a second liquid level sensor, the host machine controls the work of an electromagnetic three-way valve, liquid drainage systems are arranged at the liquid outlet ends of the pyran main reactor 1 and the pyran secondary reactor, and the pyran is discharged by the liquid drainage systems after the internal reactions of the pyran main reactor 1 and the pyran secondary reactor are completed.
In a preferred embodiment, the pyran main reactor 1 and the pyran secondary reactor are both provided with a gas valve 4, and the gas valve 4 is controlled by a host machine to balance the constant gas pressure.
In a preferred embodiment, a liquid inlet pipe 2, a first liquid level sensor 5 and an exhaust pipe 3 are arranged at the top of the pyran main reactor 1, a gas valve 4 is arranged inside the exhaust pipe 3, and a liquid discharge pipe 6 is communicated with the outer side of the pyran main reactor 1.
In a preferred embodiment, the pyran primary reactor 1 and the pyran secondary reactor have the same structure, and the two liquid discharge pipes 6 are finally converged to one pipeline for conveying, and one-way valves are arranged inside the two liquid discharge pipes 6, wherein the one-way valves are used for enabling fluid to flow only along a water inlet and enabling a medium at a water outlet not to flow back, and are commonly called as one-way valves. Check valves are also known as check valves or back-pressure valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems.
The utility model discloses a theory of operation is: methyl ether and acrolein are added according to a certain proportion through a metering mechanism, and finally the methyl ether and the acrolein are sent into the pyran main reactor 1 through a feed pump and an electromagnetic three-way valve, when pyran inside the pyran main reactor 1 reaches a certain height, a host controls the electromagnetic three-way valve to switch a pyran transmission line, the pyran is sent to a pyran secondary reactor, meanwhile, the pyran main reactor 1 carries out reaction, after the reaction of the pyran main reactor 1 is finished, a liquid discharge system controls liquid discharge, the pyran secondary reactor finishes the reaction, and after the liquid discharge of the pyran main reactor 1 is finished, the pyran secondary reactor discharges liquid, and the pyran enters the pyran main reactor 1 to react, so that the reacted pyran can be continuously discharged from a liquid discharge pipe 6, the reacted pyran can be well kept at temperature and pressure in subsequent crude pyran processing and fine pyran processing processes, and the product conversion rate and yield are improved.
It should be noted that the above embodiments belong to the same utility model concept, and the description of each embodiment has its emphasis, and the description of each embodiment is not described in detail, and reference may be made to the description of other embodiments.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A main reactor and an auxiliary reactor continuity reaction transformation device for pyran preparation comprises a metering mechanism and a reaction mechanism, and is characterized in that the metering mechanism comprises a methyl ether metering tank, a methyl ether weighing tank, an acrolein metering tank, an acrolein weighing tank, a pyran metering tank and a circulating pump, wherein the methyl ether metering tank is communicated with the pyran metering tank through the methyl ether weighing tank, the acrolein metering tank is communicated with the pyran metering tank through the acrolein weighing tank, and the bottom of the pyran metering tank is provided with the circulating pump;
the reaction mechanism comprises an electromagnetic three-way valve, a host, a pyran main reactor (1), a pyran secondary reactor and a steam drum, wherein the pyran main reactor (1) and the pyran secondary reactor are communicated through the electromagnetic three-way valve, and the pyran main reactor (1) and the pyran secondary reactor are both provided with the steam drum.
2. The device for the continuous reaction reformation of the main reactor and the secondary reactor for the pyran preparation as claimed in claim 1, wherein the output end of the pyran metering tank of the metering mechanism is communicated with the electromagnetic three-way valve through a feed pump.
3. The main reactor and the secondary reactor for pyran preparation according to claim 1, wherein said main reactor (1) and said secondary reactor for pyran are electrically connected with a host machine through a first liquid level sensor (5) and a second liquid level sensor, respectively, said host machine controlling the operation of the electromagnetic three-way valve.
4. The device for the continuous reaction reformation of the main reactor and the secondary reactor for pyran preparation according to claim 1, characterized in that the main reactor (1) and the secondary reactor for pyran are both provided with a gas valve (4).
5. The main reactor and auxiliary reactor continuity reaction transformation device for pyran production according to claim 1, characterized in that a liquid inlet pipe (2), a first liquid level sensor (5) and an exhaust pipe (3) are arranged at the top of the main pyran reactor (1), a gas valve (4) is arranged inside the exhaust pipe (3), and a liquid discharge pipe (6) is communicated with the outer side of the main pyran reactor (1).
6. The device for the continuous reaction reformation of the main reactor and the secondary reactor for pyran preparation according to claim 5, characterized in that the structures of the main reactor (1) and the secondary reactor for pyran are the same, the two liquid discharge pipes (6) are finally converged into one pipeline for conveying, and one-way valves are arranged inside the two liquid discharge pipes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221440015.6U CN217940135U (en) | 2022-06-10 | 2022-06-10 | Pyran preparation is with main, vice reactor continuity reaction transformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221440015.6U CN217940135U (en) | 2022-06-10 | 2022-06-10 | Pyran preparation is with main, vice reactor continuity reaction transformation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217940135U true CN217940135U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221440015.6U Active CN217940135U (en) | 2022-06-10 | 2022-06-10 | Pyran preparation is with main, vice reactor continuity reaction transformation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217940135U (en) |
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2022
- 2022-06-10 CN CN202221440015.6U patent/CN217940135U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 753600 9 households, including plant 1, No. 98, Shizuishan economic and Technological Development Zone, Huinong District, Shizuishan City, Ningxia Hui Autonomous Region Patentee after: Ningxia Jinghong Technology Co.,Ltd. Address before: 753600 9 households, including plant 1, No. 98, Shizuishan economic and Technological Development Zone, Huinong District, Shizuishan City, Ningxia Hui Autonomous Region Patentee before: NINGXIA JINHONG BIO-TECH Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |