CN213726410U - Synthesizer of vinyl glycol ether - Google Patents
Synthesizer of vinyl glycol ether Download PDFInfo
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- CN213726410U CN213726410U CN202022653845.4U CN202022653845U CN213726410U CN 213726410 U CN213726410 U CN 213726410U CN 202022653845 U CN202022653845 U CN 202022653845U CN 213726410 U CN213726410 U CN 213726410U
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- glycol ether
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Abstract
The utility model relates to the technical field of vinyl glycol ether production equipment, and discloses a vinyl glycol ether synthesis device which comprises a reactor, a preheater, a distillation column and a heat exchanger, receiver and gas circulation pipeline, the top of preheater is equipped with feed inlet and relief port, the bottom is equipped with the discharge gate, the bottom of reactor is equipped with feed line and air inlet pipeline, the top is equipped with the product export, the discharge gate of preheater links to each other with feed line, the bottom material import of distillation column links to each other with the product export of reactor, the top of receiver is equipped with gas outlet and feed inlet, the bottom is equipped with the relief port, the top material export of distillation column passes through the heat exchanger and links to each other with the feed inlet of receiver, the gas outlet of receiver passes through the gas circulation pipeline and links to each other with the air inlet pipeline, along gaseous flow direction, be equipped with gas circulation pump and buffer tank on the gas circulation pipeline in proper order. The device can realize continuous and stable production of the vinyl glycol ether.
Description
Technical Field
The utility model relates to a vinyl glycol ether's production facility technical field, in particular to synthesizer of vinyl glycol ether.
Background
Vinyl glycol ether is also called 2-ethyleneoxy ethanol, is an organic raw material, and due to the structural characteristics, vinyl can be used for polymerization, and hydroxyl has hydrophilicity, so that the vinyl glycol ether can be used as a precursor raw material of an industrial water reducing agent. With the development of the Chinese building market, the demand of the water reducing agent is more and more, and the demand of the vinyl glycol ether as a precursor raw material of a new-generation water reducing agent is more and more.
The vinyl glycol ether is generally generated by the addition reaction of ethylene glycol and acetylene under a catalyst, and a device for synthesizing the vinyl glycol ether is generally a kettle-type reactor, so that continuous production cannot be realized by adopting the device, the reaction pressure is high, the safety is poor, and a large number of byproducts are generated.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art exists, the utility model aims at providing a synthesizer of vinyl glycol ether can realize the continuous production of vinyl glycol ether, and the reaction is stable, and the security is high.
In order to achieve the above object, the present invention is realized by the following technical solutions:
a synthesis device of vinyl glycol ether comprises a reactor, a preheater, a distillation column, a heat exchanger, a receiver and a gas circulation pipeline, the top of the preheater is provided with a feed inlet and an air outlet, the bottom of the preheater is provided with a discharge outlet, the bottom of the reactor is provided with a feed pipeline and an air inlet pipeline, the top of the reactor is provided with a product outlet, the discharge hole of the preheater is connected with a feed pipeline, the bottom material inlet of the distillation column is connected with the product outlet of the reactor, the top of the receiver is provided with a gas outlet and a feed inlet, the bottom of the receiver is provided with a discharge hole, the top material outlet of the distillation column is connected with the feed inlet of the receiver through a heat exchanger, the gas outlet of the receiver is connected with a gas inlet pipeline through a gas circulation pipeline, and a gas circulation pump and a buffer tank are sequentially arranged on the gas circulation pipeline along the flowing direction of gas.
Preferably, the lower part of the reactor is provided with packing. The filler can increase the contact area of ethylene glycol and acetylene and improve the reaction efficiency.
Preferably, the distillation column is provided with packing. The packing material can improve the separation effect of distillation.
The utility model discloses in, the packing in the distillation column and the packing in the reactor can be the same or different, all can select the conventional packing in this field for use, as long as do not react with the material in it can.
Preferably, the heat exchanger takes the condensed water as a heat exchange medium, and a condensed water inlet and a condensed water outlet are arranged on the heat exchanger.
The utility model discloses in still including other subassemblies that can make this vinyl glycol ether synthesizer normal use, for example, valve or flowmeter etc. of control material normal flow, these all belong to the conventional selection in this field. In addition, the utility model discloses in all adopt the conventional means in this field with limited device or subassembly, for example, heat exchanger, buffer tank, gas circulation pump, pre-heater etc. all can adopt conventional setting.
The utility model discloses a vinyl glycol ether synthesizer's theory of operation includes: ethylene glycol mixed with a catalyst enters a reactor after being preheated by a preheater, acetylene enters the reactor through an air inlet pipeline, the acetylene and the ethylene glycol react under the action of the catalyst in the reactor, the reacted material enters a distillation column to be distilled and separated under the carrying of the acetylene, the separation of the vinyl glycol ether and the unreacted ethylene glycol is realized according to the difference of boiling points, the vinyl glycol ether is carried to a heat exchanger and enters a receiver after being condensed, the material in the receiver can be further purified to obtain the vinyl glycol ether with higher purity, the acetylene gas can be returned to the reactor through a gas circulation pipeline to be recycled, the ethylene glycol can be supplemented at any time in the reaction process, the stable proceeding of the reaction is ensured, and the continuous production is realized.
The utility model discloses a synthesizer of vinyl glycol ether can realize continuous, stable production of vinyl glycol ether through reasonable structure setting.
Drawings
Fig. 1 is a schematic structural diagram of a vinyl glycol ether synthesizing apparatus according to an embodiment.
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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Examples
As shown in figure 1, the synthesis device of vinyl glycol ether comprises a reactor 1, a preheater 3, a distillation column 2, a heat exchanger 4, a receiver 5 and a gas circulation pipeline 8, wherein the top of the preheater 3 is provided with a feed inlet 3-1 and an air release port 3-2, the bottom of the preheater 3 is provided with a discharge outlet, the bottom of the reactor 1 is provided with a feed pipeline 6 and an air inlet pipeline 7, the top of the reactor 1 is provided with a product outlet, the discharge outlet of the preheater 3 is connected with the feed pipeline 6, the bottom material inlet of the distillation column 2 is connected with the product outlet of the reactor 1, the top of the receiver 5 is provided with a gas outlet and a feed inlet, the bottom of the receiver 5 is provided with an air release port 5-1, the top material outlet of the distillation column 2 is connected with the feed inlet of the receiver 5 through the heat exchanger 4, and the gas outlet of the receiver 5 is connected with the air inlet pipeline 7 through the gas circulation pipeline 8, along the flowing direction of the gas, a gas circulating pump 9 and a buffer tank 10 are sequentially arranged on the gas circulating pipeline 8.
The lower part of the reactor 1 is provided with a filler. The distillation column 2 is provided with packing.
The heat exchanger 4 takes the condensed water as a heat exchange medium, and a condensed water inlet 4-1 and a condensed water outlet 4-2 are arranged on the heat exchanger 4.
The working principle of the vinyl glycol ether synthesis device comprises: ethylene glycol mixed with a catalyst enters a reactor 1 after being preheated by a preheater 3, acetylene enters the reactor 1 through an air inlet pipeline 7, the acetylene and the ethylene glycol react under the action of the catalyst in the reactor 1, the reacted material enters a distillation column 2 under the carrying of the acetylene for distillation separation, the separation of the vinyl glycol ether and the unreacted ethylene glycol is realized according to the difference of boiling points, the vinyl glycol ether is carried to a heat exchanger 4 and enters a receiver 5 after condensation, the material in the receiver 5 can be further purified to obtain the vinyl glycol ether with higher purity, the acetylene gas can return to the reactor 1 for recycling through a gas circulation pipeline 8, the ethylene glycol can be replenished at any time in the reaction process, the stable proceeding of the reaction is ensured, and the continuous production is realized.
The synthesis device of the vinyl glycol ether can realize continuous and stable production of the vinyl glycol ether through reasonable structure arrangement.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (4)
1. The synthesis device of the vinyl glycol ether comprises a reactor and is characterized in that: still include preheater, distillation column, heat exchanger, receiver and gas circulation pipeline, the top of preheater is equipped with the feed inlet and the relief port, the bottom is equipped with the discharge gate, the bottom of reactor is equipped with feed line and air intake pipeline, top is equipped with the product export, the discharge gate of preheater links to each other with feed line, the bottom material import of distillation column links to each other with the product export of reactor, the top of receiver is equipped with gas outlet and feed inlet, bottom is equipped with the drain hole, the top material export of distillation column links to each other with the feed inlet of receiver through the heat exchanger, the gas outlet of receiver passes through the gas circulation pipeline and links to each other with the air intake pipeline, along gaseous flow direction, be equipped with gas circulation pump and buffer tank on the gas circulation pipeline in proper order.
2. The apparatus for synthesizing vinyl glycol ether according to claim 1, wherein: the lower part of the reactor is provided with a filler.
3. The apparatus for synthesizing vinyl glycol ether according to claim 1, wherein: the distillation column is provided with packing.
4. The apparatus for synthesizing vinyl glycol ether according to claim 1, wherein: the heat exchanger takes condensed water as a heat exchange medium, and a condensed water inlet and a condensed water outlet are arranged on the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022653845.4U CN213726410U (en) | 2020-11-16 | 2020-11-16 | Synthesizer of vinyl glycol ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022653845.4U CN213726410U (en) | 2020-11-16 | 2020-11-16 | Synthesizer of vinyl glycol ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213726410U true CN213726410U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022653845.4U Active CN213726410U (en) | 2020-11-16 | 2020-11-16 | Synthesizer of vinyl glycol ether |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213726410U (en) |
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2020
- 2020-11-16 CN CN202022653845.4U patent/CN213726410U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220308 Address after: 454450 No. 1888, Cultural Road (eastern section), Poai County, Jiaozuo, Henan Patentee after: Boai Xinkaiyuan Pharmaceutical Co.,Ltd. Address before: 454450 No. 1888, Cultural Road (eastern section), Poai County, Jiaozuo, Henan Patentee before: BOAI NKY MEDICAL HOLDINGS Ltd. |
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| TR01 | Transfer of patent right |