CN209885777U - Guide cylinder type vinyl ether product reactor - Google Patents
Guide cylinder type vinyl ether product reactor Download PDFInfo
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- CN209885777U CN209885777U CN201920070200.2U CN201920070200U CN209885777U CN 209885777 U CN209885777 U CN 209885777U CN 201920070200 U CN201920070200 U CN 201920070200U CN 209885777 U CN209885777 U CN 209885777U
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Abstract
The utility model discloses a guide cylinder type vinyl ether product reactor, wherein the upper part of the reactor is provided with a high-efficiency gas-liquid separator, the top of the reactor is provided with a gas phase outlet, the bottom of the reactor is provided with a waste catalyst discharge port, the center of the reactor is provided with a guide cylinder, a plurality of circles of steam coil pipes are arranged in the guide cylinder, and a fresh ethylene glycol distributor with a downward hole is inserted in the guide cylinder; six acetylene distributing cavities which are uniformly distributed at 60 degrees are arranged, a liquid phase area and a Venturi distribution area are arranged on each acetylene distributing cavity, and a Venturi nozzle is arranged on each Venturi distribution area; the guide cylinder and the liquid phase area on the acetylene distribution cavity together enable the interior of the reactor to form liquid phase circulation. Use the utility model discloses the reactor produces vinyl glycol ether, has greatly improved gas-liquid phase reaction efficiency and conversion rate, but the reactor steady operation in succession, and output is big, can improve the product ability to ten thousand tons level from hundred tons level every year.
Description
Technical Field
The utility model relates to a vinyl ether product reactor can be used to alcohols (such as ethylene glycol, 1, 4-butanediol, etc.) and acetylene to generate vinyl ether products, especially vinyl glycol ether. The product comprises vinyl glycol ether, vinyl n-butyl ether, vinyl tert-butyl ether and the like.
Background
The vinyl ether compound has wide application prospect in the fields of printing, printing ink, electronic materials and the like, and in recent years, the vinyl ether compound has attracted attention and develops rapidly in the aspect of paint reactive diluents. Taking vinyl glycol ether as an example, ethylene glycol and acetylene react under the condition of an alkaline catalyst to generate the vinyl glycol ether, the reaction is a gas-liquid phase reaction, and the core of reactor design is to strengthen gas-liquid phase contact and shorten the retention time of a product in a liquid phase. However, such reactions have the characteristics of low selectivity, low conversion rate and a large amount of byproducts, and cannot meet the actual requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a water conservancy diversion cylinder vinyl ether product reactor takes the product out of reaction system fast through the acetylene cycle, has improved the conversion. Has high efficiency, continuous, stable and large processing capacity.
The technical scheme of the utility model is that: a guide cylinder type vinyl ether reactor comprises a pressure-bearing container shell, wherein a high-efficiency gas-liquid separator is arranged at the upper part of the reactor, a gas phase outlet is arranged at the top of the reactor, and a waste catalyst discharge port is arranged at the bottom of the reactor; the lower part of the reactor shell is provided with an acetylene distribution cavity which is uniformly distributed around the guide cylinder, the acetylene distribution cavity is provided with a liquid phase area and a Venturi distribution area, and the Venturi distribution area is provided with a Venturi nozzle; the guide cylinder and the liquid phase area on the acetylene distribution cavity together enable the interior of the reactor to form liquid phase circulation.
Preferably, the acetylene distribution cavity is of an independent cavity structure, the acetylene gas phase space is completely arranged in the acetylene distribution cavity, and the upper plate of the acetylene distribution cavity is provided with a threaded port which is in threaded connection with the venturi, so that the acetylene distribution cavity is convenient to mount.
Preferably, each acetylene distribution cavity corresponds to an independent acetylene gas inlet, and acetylene gas enters the acetylene distribution cavities through the acetylene gas inlets which are symmetrically distributed.
Preferably, the acetylene distribution chamber consists of a separate chamber, facilitating installation from the top gas phase outlet.
Preferably, the liquid phase zone on the acetylene distribution chamber is in the form of a strip-shaped passing zone, or in the form of a circular passing zone.
Preferably, the number of the Venturi nozzles is about several to tens of thousands, and the actual number can be adjusted according to the capacity scale of the device.
Preferably, the height of the guide shell is 0.5-3 m.
Preferably, the steam coil employs light pipes or finned tubes.
Preferably, the part of the glycol distributor inserted into the guide shell is grooved downwards.
Preferably, the shell outer wall corresponding to the liquid phase zone on the acetylene distribution cavity is provided with a steam jacket, and the height of the steam jacket is the same as that of the liquid phase zone.
The utility model discloses created high-efficient, continuous, stable, big throughput's gas-liquid and contacted reaction condition, gaseous phase leaves the reactor after once passing through the reaction zone, takes away the reaction product, has improved the conversion greatly.
Drawings
FIG. 1 is a schematic diagram of the reactor structure of the present invention.
Fig. 2 is a schematic view of a strip acetylene distribution chamber according to the present invention.
Fig. 3 is a schematic view of a circular acetylene distribution chamber according to the present invention.
Fig. 4 is a top view of the acetylene distribution chamber of the present invention.
Detailed Description
The specific design of the present invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, the utility model discloses the reactor includes vessel shell 1, acetylene gas import 2, acetylene distribution chamber 3, venturi nozzle 4, draft tube 5, fresh ethylene glycol distributor 6, steam coil 7, high-efficient demister 8, gas phase export 9, useless catalyst discharge port 10, coil pipe steam inlet 11, coil pipe condensate outlet 12, the district 13 is passed through to the bar, venturi distribution district 14, circular district 15 of passing through.
The reactor shell 1 is a vertical pressure vessel, the center of the reactor is provided with a guide cylinder 5, the diameter of the guide cylinder 5 is about 1-2 m, and the height is 0.5-3 m. A fresh ethylene glycol distributor 6 with a downward opening is inserted in the guide shell 5, and the fresh ethylene glycol is uniformly injected into the reactor. A plurality of circles of steam coils 7 are arranged in the guide shell 5 to provide heat for reaction and evaporation. The steam coil 7 can be a light pipe or a finned pipe.
Six acetylene distributing cavities 3 are uniformly distributed at the lower part of the reactor shell and are distributed around the guide shell 5. The actual number of acetylene distribution chambers 3 can be adjusted according to the size of the shell and the number of venturis.
The acetylene distribution chamber 3 consists of six independent chambers, which are convenient to install from a top gas phase outlet.
The acetylene distribution cavity 3 is of a cavity structure, and the cavity is completely an acetylene gas phase space.
Six acetylene gas inlets 2 with 60 degrees are uniformly distributed, each independent acetylene distribution cavity 3 uses one acetylene gas inlet 2, and liquid phase cannot enter the acetylene distribution cavity 3.
The acetylene distributing chamber 3 is provided with a liquid passage area and a venturi distribution area 14, and the liquid passage area can be in a strip form (as shown in figure 2) or a uniformly distributed circular form (as shown in figure 3).
The strip-shaped passing area 13 has high aperture ratio, and more Venturi nozzles can be arranged. Although the aperture ratio of the circular passing area 15 is low, the liquid passing is more uniform, the distribution of the liquid around the venturi is more facilitated, the flow field is more uniform, and the two forms can be selected according to the design requirement.
The liquid phase region on the guide shell 5 and the acetylene distributing cavity 3 enables the internal liquid circulation to be formed in the reactor.
The venturi distribution area 14 at the upper part of the acetylene distribution cavity 3 is provided with a threaded opening for installing venturi nozzles, the number of the nozzles is several or tens of thousands, the nozzles can be adjusted randomly according to the design capability, and the number is limited only by the size of the venturi nozzles and the size of the reactor.
The upper part of the reactor is provided with a high-efficiency gas-liquid separator 8.
The bottom of the reactor is provided with a spent catalyst discharge port 10 for continuously discharging spent catalyst liquid.
In the range of the liquid phase region, the outer wall of the shell corresponding to the liquid phase region is provided with a steam jacket 16 for further providing heat, and the inlet amount of steam is controlled and adjusted by using the liquid phase temperature.
The reactor is provided with a liquid level control and low liquid level chain to ensure that acetylene gas cannot flow into the liquid phase downstream.
The process comprises the following steps;
gas-phase acetylene enters six independent acetylene distribution cavities 3 through six acetylene gas inlets 2 uniformly distributed at 60 degrees, the upper parts of the acetylene distribution cavities 3 are provided with Venturi nozzles, and acetylene gas is sprayed into a reaction area at the upper part through the Venturi nozzles 4 to react with ethylene glycol.
During normal operation, acetylene gas sucks the ethylene glycol around into the acetylene gas through the suction force generated in the middle area of the venturi, the ethylene glycol is mixed and sprayed out at high speed, and the reaction is carried out in the reaction area at the upper part of the acetylene distribution cavity 3 and the outer side of the guide cylinder 5. The gas phase leaves the reactor after passing through the reaction zone once, while carrying away a large amount of reaction products. The liquid phase flows into the bottom of the acetylene distribution cavity 3 from top to bottom through the guide cylinder 5 and then enters the reaction zone through a liquid phase passing zone (13 or 15) on the acetylene distribution cavity 3 to form liquid phase circulation in the reactor.
Use the utility model discloses the reactor produces vinyl glycol ether, has greatly improved gas-liquid phase reaction efficiency, uses the reaction product to be taken away through reaction zone once to the acetylene of circulation simultaneously, shortens dwell time, has improved the conversion rate of reaction, and the conversion rate is more than one time of ordinary bubbling formula reactor. The reactor can continuously and stably operate, has high yield, can improve the product capacity from hundred tons to ten thousand tons every year, and has breakthrough significance for large-scale industrial biochemical continuous production of vinyl ether products.
The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. A guide cylinder type vinyl ether product reactor comprises a pressure-bearing container shell (1), wherein a high-efficiency gas-liquid separator (8) is arranged at the upper part of the reactor, a gas phase outlet (9) is arranged at the top of the reactor, a waste catalyst discharge port (10) is arranged at the bottom of the reactor, and the guide cylinder type vinyl ether product reactor is characterized in that a guide cylinder (5) is arranged at the center of the reactor, a plurality of circles of steam coil pipes (7) are arranged in the guide cylinder (5), and a fresh ethylene glycol distributor (6) with a downward groove is inserted in the guide cylinder (; the lower part of the reactor shell is provided with acetylene distributing cavities (3) which are uniformly distributed and distributed around the guide cylinder (5), the acetylene distributing cavities (3) are provided with a liquid phase area and a Venturi distribution area (14), and the Venturi distribution area (14) is provided with a Venturi nozzle; the guide shell (5) and the liquid phase area on the acetylene distribution cavity (3) together enable the interior of the reactor to form liquid phase circulation.
2. The flow guide cylinder type vinyl ether product reactor as claimed in claim 1, wherein the acetylene distribution chamber (3) is an independent cavity structure, the acetylene gas phase space is completely arranged in the acetylene distribution chamber, and the upper plate of the acetylene distribution chamber is provided with a threaded opening which is in threaded connection with the venturi, so that the installation is convenient.
3. Guide cylinder type vinyl ether product reactor according to claim 1, wherein each acetylene distribution chamber (3) corresponds to a separate acetylene gas inlet (2), and acetylene gas enters the acetylene distribution chamber (3) through the acetylene gas inlets which are symmetrically distributed.
4. Guide-barrel type vinyl ether product reactor according to claim 2, wherein the acetylene distribution chamber (3) is composed of a separate chamber, which is easy to install from the top gas phase outlet (9).
5. Guide-barrel type vinyl ether product reactor according to claim 1, wherein the liquid phase zone on the acetylene distribution chamber (3) is in the form of a strip-shaped passage zone (13) or in the form of a circular passage zone (15).
6. The guide-barrel type vinyl ether product reactor as claimed in claim 1, wherein the number of venturi nozzles is several to several tens of thousands.
7. The guide cylinder type vinyl ether product reactor as claimed in claim 1, wherein the height of the guide cylinder (5) is 0.5-3 m.
8. Flow-through cartridge type vinyl ether product reactor according to claim 1, wherein the steam coil (7) is a light pipe or a finned pipe.
9. Guide shell type vinyl ether product reactor as claimed in claim 1, wherein the part of the glycol distributor (6) inserted into the guide shell (5) is recessed downward.
10. Guide cylinder type vinyl ether product reactor as claimed in claim 1, wherein the vapor jacket (16) is provided on the outer wall of the shell corresponding to the liquid phase region of the acetylene distribution chamber (3), and the jacket height is the same as the liquid phase region height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070200.2U CN209885777U (en) | 2019-01-16 | 2019-01-16 | Guide cylinder type vinyl ether product reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070200.2U CN209885777U (en) | 2019-01-16 | 2019-01-16 | Guide cylinder type vinyl ether product reactor |
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| CN209885777U true CN209885777U (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847659A (en) * | 2019-01-16 | 2019-06-07 | 华陆工程科技有限责任公司 | A kind of guide cylinder type vinyl ethers product reactor |
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2019
- 2019-01-16 CN CN201920070200.2U patent/CN209885777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847659A (en) * | 2019-01-16 | 2019-06-07 | 华陆工程科技有限责任公司 | A kind of guide cylinder type vinyl ethers product reactor |
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