CN215611513U

CN215611513U - Benzene sulfonamide synthesis reaction device

Info

Publication number: CN215611513U
Application number: CN202121523809.4U
Authority: CN
Inventors: 赵书建
Original assignee: Jinan Deruifeng Environmental Protection Chemical Co ltd
Current assignee: Jinan Deruifeng Environmental Protection Chemical Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-01-25
Anticipated expiration: 2031-07-06

Abstract

The utility model relates to the technical field of benzene sulfonamide preparation, and discloses a benzene sulfonamide synthesis reaction device, which solves the problem of inconvenient reaction temperature adjustment and comprises a conical flask, wherein a fixed cylinder is arranged on the outer side of the conical flask, handles are arranged on two sides of the fixed cylinder, a water tank is arranged in the conical flask, a flask plug is arranged at the top end of the conical flask, a feeding pipe is arranged on one side of the top end of the flask plug, a stirring mechanism is arranged in the middle of the top end of the flask plug, an air outlet pipe is arranged on the other side of the top end of the conical flask, an exhaust mechanism is arranged at the top end of the air outlet pipe, the stirring mechanism comprises a stirring rod arranged in the middle of the flask plug, and a water inlet pipe is arranged at the top end of the stirring rod; in the utility model, in the operation, the semicircular grooves are symmetrically formed in the arranged stirring rod, the tubular stirrer is arranged at the bottom end of the stirring rod, hot water and cold water can be introduced into the stirring rod, the temperature required by the synthesis reaction can be directly adjusted in the stirring process, and the synthesis working efficiency is improved.

Description

Benzene sulfonamide synthesis reaction device

Technical Field

The utility model belongs to the technical field of preparation of benzenesulfonamide, and particularly relates to a benzenesulfonamide synthesis reaction device.

Background

The benzene sulfonamide is white needle-shaped or sheet-shaped crystal, is easily soluble in hot alcohol and ether, is slightly soluble in water, is combustible when meeting open fire and high heat, is decomposed by heating, releases toxic gases such as oxides of nitrogen and sulfur, is used as an organic synthesis and medical intermediate, and can be prepared by ammoniating benzene sulfonyl chloride.

In the process of synthesizing the benzene sulfonamide, heating stirring and cooling stirring are required to be respectively carried out, so that the time is wasted, and the synthesis rate is reduced.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a benzene sulfonamide synthesis reaction device, which effectively solves the problem of inconvenient reaction temperature adjustment.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a benzene sulfonamide synthesis reaction device, includes the erlenmeyer flask, a fixed section of thick bamboo is installed in the outside of erlenmeyer flask, and the handle is all installed to the both sides of a fixed section of thick bamboo, and the basin has been seted up to the inside of erlenmeyer flask, and the bottle plug is installed on the top of erlenmeyer flask, and the inlet pipe is installed to one side on bottle plug top, and the mid-mounting on bottle plug top has rabbling mechanism, and the outlet duct is installed to the opposite side on erlenmeyer flask top, and exhaust mechanism is installed on the top of outlet duct.

Preferably, the inlet tube is installed including installing in the puddler at bottle plug middle part to the rabbling mechanism, the bull stick is all installed to the top of puddler, and the bull stick is all installed to the both sides on puddler top, and the semicircular groove has all been seted up to the inside both sides of puddler, and the tubulose agitator is installed to the bottom of puddler, and the outlet pipe that is located the bull stick below is installed to one side of puddler.

Preferably, the semicircular groove on one side inside the stirring rod is communicated with the water inlet pipe, and the semicircular groove on the other side is closed.

Preferably, the semicircular groove on the closed side of the top end in the stirring rod is communicated with the water outlet pipe, and the bottom end of the water outlet pipe is positioned in the water tank.

Preferably, the semicircular groove is semicircular, and the shape of the inner section of the tubular stirrer is the same as that of the semicircular groove.

Preferably, the exhaust mechanism comprises an exhaust pipe arranged at the top end of the exhaust pipe, a tail pipe is arranged on one side of the top end of the exhaust pipe, the absorption bottle is arranged at the bottom end of the exhaust pipe, a stop block is arranged inside the tail pipe, a connecting rod is arranged on one side of the stop block, and a spring located on the outer side of the connecting rod is arranged on one side of the stop block.

Preferably, the connecting rod penetrates the tail pipe to the outside, and the exhaust pipe is n-shaped.

Compared with the prior art, the utility model has the beneficial effects that:

1) during the operation, semicircular grooves are symmetrically formed in the arranged stirring rod, the tubular stirrer is arranged at the bottom end of the stirring rod, hot water and cold water can be introduced into the stirring rod, the temperature required by the synthesis reaction can be directly adjusted in the stirring process, and the synthesis working efficiency is improved;

2) during operation, when more hydrogen chloride gas is generated in the conical flask through the arranged stop block, the stop block can be pushed away by larger air pressure for a larger distance, and when the reaction is basically finished, the hydrogen chloride gas almost overflows, so that the reaction degree in the conical flask is reacted according to the distance from the stop block to the tail pipe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the fixed cylinder of the present invention;

FIG. 3 is a schematic view of the structure of the erlenmeyer flask of the present invention;

FIG. 4 is a schematic structural diagram of a stirring mechanism according to the present invention;

FIG. 5 is a schematic view of the exhaust mechanism of the present invention;

fig. 6 is a schematic view of the stopper structure of the present invention.

In the figure: 1. a conical flask; 2. a fixed cylinder; 3. a handle; 4. a water tank; 5. a bottle stopper; 6. a feed pipe; 7. an air outlet pipe; 8. a stirring mechanism; 801. a stirring rod; 802. a rotating rod; 803. a semicircular groove; 804. a tubular agitator; 805. a water outlet pipe; 806. a water inlet pipe; 9. an exhaust mechanism; 901. an exhaust pipe; 902. a tail pipe; 903. an absorption bottle; 904. a stopper; 905. a connecting rod; 906. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention includes a conical flask 1, a fixed cylinder 2 is installed outside the conical flask 1, handles 3 are installed on both sides of the fixed cylinder 2, a water tank 4 is installed inside the conical flask 1, a flask plug 5 is installed on the top end of the conical flask 1, a feeding pipe 6 is installed on one side of the top end of the flask plug 5, a stirring mechanism 8 is installed in the middle of the top end of the flask plug 5, an air outlet pipe 7 is installed on the other side of the top end of the conical flask 1, and an air exhaust mechanism 9 is installed on the top end of the air outlet pipe 7.

In the second embodiment, on the basis of the first embodiment, the stirring mechanism 8 includes a stirring rod 801 installed in the middle of the bottle stopper 5, a water inlet pipe 806 is installed at the top end of the stirring rod 801, rotating rods 802 are installed on both sides of the top end of the stirring rod 801, semicircular grooves 803 are formed on both sides of the inside of the stirring rod 801, a tubular stirrer 804 is installed at the bottom end of the stirring rod 801, and a water outlet pipe 805 located below the rotating rods 802 is installed on one side of the stirring rod 801.

In the third embodiment, on the basis of the second embodiment, the semicircular groove 803 on one side inside the stirring rod 801 is communicated with the water inlet pipe 806, the semicircular groove 803 on the other side is closed, and the semicircular grooves 803 on two sides inside the stirring rod 801 are used for water inlet on one side and water outlet on the other side.

In the fourth embodiment, on the basis of the second embodiment, the semicircular groove 803 located on the closed side of the top end inside the stirring rod 801 is communicated with the water outlet pipe 805, and the bottom end of the water outlet pipe 805 is located inside the water tank 4.

In the fifth embodiment, in addition to the second embodiment, the semicircular groove 803 has a semicircular shape, and the cross-sectional shape of the inside of the tubular agitator 804 is the same as the shape of the semicircular groove 803.

Sixth embodiment, in addition to the first embodiment, the exhaust mechanism 9 includes an exhaust pipe 901 attached to the top end of the exhaust pipe 7, a tail pipe 902 attached to one side of the top end of the exhaust pipe 901, an absorption bottle 903 attached to the bottom end of the exhaust pipe 901, a stopper 904 attached to the inside of the tail pipe 902, a link 905 attached to one side of the stopper 904, and a spring 906 located outside the link 905 attached to one side of the stopper 904.

In the seventh embodiment, the connecting rod 905 penetrates the tail pipe 902 in addition to the sixth embodiment, the exhaust pipe 901 is formed in an n-shape, and the reaction progress state in the erlenmeyer flask 1 can be determined by the length of the connecting rod 905.

The working principle is as follows: when the reaction kettle works, firstly, when the reaction kettle is installed, the conical flask 1 is placed on a platform, the fixed cylinder 2 is sleeved outside the conical flask 1, the stirring rod 801 is movably sleeved with the water inlet pipe 806, materials required for reaction are added from the position of the water inlet pipe 6, after the reaction materials are added, hot water is firstly introduced into the water inlet pipe 806, enters the stirring rod 801 from the position of the semicircular groove 803 on one side and then enters the tubular stirrer 804, passes through the semicircular groove 803 on the other side inside the stirring rod 801, because the top end of the semicircular groove 803 on the other side is communicated with the water outlet pipe 805, the hot water is discharged into the water tank 4 from the position of the water outlet pipe 805, a worker holds the rotating rod 802 to enable the tubular stirrer 804 to rotate inside the conical flask 1, so that the reaction materials added inside the conical flask 1 are stirred while being heated, when the reaction materials become liquid, at this time, the introduction of the hot water into the stirring rod 801 stops, then, ice water is introduced into the stirring rod 801, the liquid inside the erlenmeyer flask 1 is subjected to cold bath treatment, the stirring rod 801 is rotated to stir the liquid, after the liquid is subjected to cold bath for a long time, the stirring is stopped, the handle 3 is taken out, and then the reaction product inside the erlenmeyer flask 1 is taken out.

In the heating reaction process, raw materials react with each other to generate more hydrogen chloride gas, the hydrogen chloride gas enters the absorption bottle 903 from the gas outlet pipe 7 and the exhaust pipe 901, sodium hydroxide liquid is contained in the absorption bottle 903 to absorb the hydrogen chloride gas, when the reaction is strong, the internal air pressure of the exhaust pipe 901 is increased at the moment, the stop block 904 is continuously pushed out, the part of the connecting rod 905 exposed at the outer end of the tail pipe 902 is more, when the reaction is ended, the hydrogen chloride gas basically disappears at the moment, the part of the connecting rod 905 exposed at the outer end of the tail pipe 902 is less at the moment, the reaction proceeding condition in the conical flask 1 is judged according to the length of the connecting rod 905, and after the hydrogen chloride gas does not disappear, cold water is introduced into the stirring rod 801 to perform subsequent cold bath stirring.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A benzene sulfonamide synthesis reaction device comprises an erlenmeyer flask (1), and is characterized in that: fixed cylinder (2) are installed in the outside of erlenmeyer flask (1), handle (3) are all installed to the both sides of fixed cylinder (2), basin (4) have been seted up to the inside of erlenmeyer flask (1), bottle plug (5) are installed on the top of erlenmeyer flask (1), inlet pipe (6) are installed to one side on bottle plug (5) top, the mid-mounting on bottle plug (5) top has rabbling mechanism (8), outlet duct (7) are installed to the opposite side on erlenmeyer flask (1) top, exhaust mechanism (9) are installed on the top of outlet duct (7).

2. The benzenesulfonamide synthesis reaction device according to claim 1, characterized in that: rabbling mechanism (8) are including installing puddler (801) in bottle plug (5) middle part, and inlet tube (806) are installed on the top of puddler (801), and bull stick (802) are all installed to the both sides on puddler (801) top, and semicircular groove (803) have all been seted up to the inside both sides of puddler (801), and tubulose agitator (804) are installed to the bottom of puddler (801), and outlet pipe (805) that are located bull stick (802) below are installed to one side of puddler (801).

3. The benzenesulfonamide synthesis reaction device according to claim 2, characterized in that: the semicircular groove (803) on one side inside the stirring rod (801) is communicated with the water inlet pipe (806), and the semicircular groove (803) on the other side is closed.

4. The benzenesulfonamide synthesis reaction device according to claim 2, characterized in that: the semicircular groove (803) positioned on the closed side of the top end in the stirring rod (801) is communicated with a water outlet pipe (805), and the bottom end of the water outlet pipe (805) is positioned in the water tank (4).

5. The benzenesulfonamide synthesis reaction device according to claim 2, characterized in that: the semicircular groove (803) is semicircular, and the shape of the inner section of the tubular stirrer (804) is the same as that of the semicircular groove (803).

6. The benzenesulfonamide synthesis reaction device according to claim 1, characterized in that: exhaust mechanism (9) are including installing in blast pipe (901) on blast pipe (7) top, and tail pipe (902) are installed to one side on blast pipe (901) top, and absorption bottle (903) are installed to the bottom of blast pipe (901), and the internally mounted of tail pipe (902) has dog (904), and connecting rod (905) are installed to one side of dog (904), and spring (906) that are located the connecting rod (905) outside are installed to one side of dog (904).

7. The benzenesulfonamide synthesis reaction device according to claim 6, characterized in that: the connecting rod (905) penetrates through the tail pipe (902), and the exhaust pipe (901) is n-shaped.