CN212731735U - Loop reaction ejector - Google Patents
Loop reaction ejector Download PDFInfo
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- CN212731735U CN212731735U CN202021484746.1U CN202021484746U CN212731735U CN 212731735 U CN212731735 U CN 212731735U CN 202021484746 U CN202021484746 U CN 202021484746U CN 212731735 U CN212731735 U CN 212731735U
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- circulation cover
- venturi
- spout
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Abstract
The utility model discloses a loop reaction ejector, which comprises a nozzle, a circulation cover and a Venturi tube; circulation cover vertically sets up in reation kettle upper portion and with reation kettle UNICOM, venturi sets up in circulation cover and coaxial with circulation cover, venturi is close to circulation cover one end and forms inlet air duct with the upper portion of circulation cover, the spout that a plurality of circulation cover axial that follow of circulation cover surface equipartition set up, the spoke form distributes a plurality of connecting rods with the spout one-to-one on the venturi, set up the slider of sliding fit's butt on the internal surface of circulation cover on the connecting rod, the slider surface sets up locking bolt, stretching out to circulation cover outside after locking bolt passes the spout, spiro union lock nut on the locking bolt, the nozzle covers coaxial setting and one end with the circulation and stretches into to venturi in downwards. Through the structure, in the loop reaction process, the gas-phase medium can be changed according to the requirements of different liquid-phase media, so that the loop reactor has the advantages of wider application range and more flexible capacity adjustment.
Description
Technical Field
The utility model relates to a concentrator field, especially a loop reaction sprayer.
Background
In the chemical production process, for gas-liquid two-phase reaction or gas-liquid-solid three-phase reaction containing a solid suspension catalyst, reactants are fully mixed, so that the mass transfer is enhanced, and the reaction process is accelerated; is beneficial to improving the concentration and the temperature distribution, inhibiting the generation of side reaction and improving the selectivity of the reaction. And the loop reactor can better meet the required conditions. In a loop reactor, an ejector is a high performance mixing device. It is composed of four parts, turbulence nozzle, gas chamber, gas circulation pipeline and pipe. The pumped liquid forms a rapid jet flow through the nozzle to carry gas in the gas chamber to jet out, and the liquid impacts on the pipe wall to form energy consumption. This creates a strong mixing vibration zone where the intense turbulence spreads the foam well. The gas foam generated by the impact is very small (30-70 μm), and the gas-liquid ratio reaches more than 0.5-2.0. This is therefore the most ideal dispersing device for the loop reactor to carry out the reaction, achieving the initial most important mass transfer function, after which the mixture is sprayed into the stock solution in the autoclave. However, the caliber of the air inlet arranged on the air chamber in the existing ejector is fixed, and cannot be adjusted according to the gas-liquid ratio required by different reaction media, so that the adjustment capability of the loop reactor is poor, and the capacity is single.
SUMMERY OF THE UTILITY MODEL
In view of the above insufficiency, the present invention provides a loop reaction injector, which can realize the flexible adjustment of the air inlet, further realize the ratio of the gas-liquid two-phase substance, and finally achieve the purpose of flexible adjustment.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a loop reaction ejector comprises a nozzle, a circulation cover and a Venturi tube; circulation cover vertically sets up on reation kettle upper portion and communicates with reation kettle, and venturi sets up in circulation cover and coaxial with circulation cover, venturi is close to circulation cover one end and forms inlet air duct with the upper portion of circulation cover, the spout that a plurality of circulation cover axial that circulate of cover surface equipartition set up, and spoke form distributes a plurality of connecting rods with the spout one-to-one on the venturi, sets up the slider of sliding fit's butt on the internal surface of circulation cover on the connecting rod, and the slider surface sets up locking bolt, stretching out to circulation cover outside after locking bolt passes the spout, spiro union lock nut on the locking bolt, the nozzle covers coaxial setting and one end with the circulation and stretches into to venturi in downwards.
Further, a sealing rubber layer is arranged on the surface, opposite to the sliding groove, of the sliding block.
Furthermore, an air supply pipe communicated with the circulating cover is arranged at the upper part of the circulating cover.
The working principle is as follows: when the proportion of the gas-phase medium in the loop reaction needs to be adjusted, a worker loosens the locking nut and then stirs the locking bolt, so that the locking bolt moves in the sliding groove to drive the Venturi tube to move axially in the circulating cover, the axial movement of the Venturi tube leads the air inlet channel formed between the Venturi tube and the circulating cover to change, the change of the air inlet channel leads the gas-phase medium which can enter the Venturi tube from the air inlet channel to change, and the effect of adjusting the proportion of the gas-phase medium in the loop reaction is achieved.
Has the advantages that: through the structure, in the loop reaction process, the gas-phase medium can be changed according to the requirements of different liquid-phase media, so that the loop reactor has the advantages of wider application range and more flexible capacity adjustment.
Drawings
FIG. 1 is a state diagram of the present invention in a loop reactor;
fig. 2 is a schematic structural diagram of the present invention.
Reference numerals: 100, loop reaction injector 110, nozzle 120, circulation cover 121, air inlet channel height 122, chute 123, air supplement pipe 130, venturi 131, connecting rod 132, slider 133, tightening bolt 134, locking nut 135, mixing chamber 136, sealing rubber layer 200, reaction kettle 300, circulation pump 400 and heat exchanger.
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 of the present invention, 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 belong to the protection scope of the present invention.
A loop reactor ejector 100, as shown in fig. 2, includes a nozzle 110, a circulation hood 120, and a venturi 130. The circulating cover is of a cylindrical structure, one end of the circulating cover is sealed, and the circulating cover is arranged at the upper part of the reaction kettle 200 and communicated with the reaction kettle. And the venturi is freely arranged in the circulation cover and is coaxial with the circulation cover. The two ends of the Venturi tube are trumpet-shaped, the middle of the Venturi tube is cylindrical, and an annular air inlet channel 121 is formed between one end of the Venturi tube close to the upper part of the circulating cover and used for sucking gas-phase media. Meanwhile, a plurality of chutes 122 are uniformly distributed on the surface of the circulating cover and are axially opened along the circulating cover. The surface of the venturi tube is provided with a plurality of connecting rods 131 which are in spoke shape and correspond to the sliding grooves one by one, one end of each connecting rod far away from the venturi tube is fixedly connected with a sliding block 132, and the sliding block is abutted against the inner surface of the circulating cover in a sliding fit manner. Meanwhile, a locking bolt 133 is arranged on the sliding block, penetrates through the sliding groove and then extends out of the circulating cover, and a locking nut 134 is screwed on the locking bolt. In addition, as shown in FIG. 2, the nozzle is coaxially connected to the circulation hood and extends downwardly into the venturi at one end, thereby forming a mixing chamber 135 with the venturi. It should be noted that, in the practical application process, as shown in fig. 1, the present invention is serially connected to the reaction kettle 300, the circulation pump 400, and the heat exchanger 500 in sequence.
As a further improvement of the above embodiment, in order to ensure the sealing performance at the sliding groove, a sealing rubber layer 136 is further provided on the surface of the sliding block facing the sliding groove.
As a further improvement of the above embodiment, a gas supply pipe 123 communicating with the circulation cover is provided at the upper part of the circulation cover in order to timely supply the gas phase medium lost during the reaction.
Claims (3)
1. A loop reaction injector, characterized by: comprises a nozzle, a circulating cover and a Venturi tube; circulation cover vertically sets up on reation kettle upper portion and communicates with reation kettle, and venturi sets up in circulation cover and coaxial with circulation cover, venturi is close to circulation cover one end and forms inlet air duct with the upper portion of circulation cover, the spout that a plurality of circulation cover axial that circulate of cover surface equipartition set up, and spoke form distributes a plurality of connecting rods with the spout one-to-one on the venturi, sets up the slider of sliding fit's butt on the internal surface of circulation cover on the connecting rod, and the slider surface sets up locking bolt, stretching out to circulation cover outside after locking bolt passes the spout, spiro union lock nut on the locking bolt, the nozzle covers coaxial setting and one end with the circulation and stretches into to venturi in downwards.
2. A loop reaction injector as defined in claim 1 wherein: and a sealing rubber layer is arranged on the surface of the sliding block, which is opposite to the sliding groove.
3. A loop reaction injector as claimed in claim 1 or claim 2, wherein: an air supply pipe communicated with the circulating cover is arranged at the upper part of the circulating cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484746.1U CN212731735U (en) | 2020-07-24 | 2020-07-24 | Loop reaction ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484746.1U CN212731735U (en) | 2020-07-24 | 2020-07-24 | Loop reaction ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212731735U true CN212731735U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021484746.1U Active CN212731735U (en) | 2020-07-24 | 2020-07-24 | Loop reaction ejector |
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| CN (1) | CN212731735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289564A (en) * | 2021-06-22 | 2021-08-24 | 浙江辽想新材料科技有限公司 | Self-suction reaction kettle |
-
2020
- 2020-07-24 CN CN202021484746.1U patent/CN212731735U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289564A (en) * | 2021-06-22 | 2021-08-24 | 浙江辽想新材料科技有限公司 | Self-suction reaction kettle |
| CN113289564B (en) * | 2021-06-22 | 2022-01-14 | 浙江辽想新材料科技有限公司 | Self-suction reaction kettle |
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