CN218901832U

CN218901832U - Novel vertical dynamic tube reactor

Info

Publication number: CN218901832U
Application number: CN202222707771.7U
Authority: CN
Inventors: 丁全有; 陈霄; 蔡盛; 张秋达; 杨婷婷; 秦世文
Original assignee: Shandong Weijing Chemical Technology Co ltd
Current assignee: Shandong Weijing Chemical Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-25
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to the technical field of chemical reaction equipment, and discloses a novel vertical dynamic tube reactor, which comprises a reaction device, a sealing device and a power device, wherein the reaction device comprises a stirring shaft, a cylinder body and an outer jacket; the stirring shaft adopts a hollow structure to form a first heat exchange cavity, and a first connecting end head and a second connecting end head are respectively arranged at the opposite ends of the stirring shaft; the outer jacket is arranged outside the cylinder body, the opposite ends of the outer jacket are also respectively connected with the first connecting end head and the second connecting end head, and a second heat exchange cavity is formed between the outer jacket and the cylinder body; mechanical seal is adopted between the stirring shaft and the cylinder. The novel vertical dynamic tube reactor adopts a vertical tube space structure, can realize high mass transfer efficiency and high heat transfer efficiency, and effectively solves the phenomenon of back mixing occurring during gas phase participation.

Description

Novel vertical dynamic tube reactor

Technical Field

The utility model relates to the technical field of chemical reaction equipment, in particular to a novel vertical dynamic tube reactor.

Background

The stirring shaft structure inside the tubular reactor device greatly enhances the turbulence degree of fluid in the material flowing process of the tubular reactor device, the mass transfer effect and the heat transfer effect are hundreds of times and thousands of times higher than those of the traditional reactor, and the instant uniform mixing and the efficient heat transfer of the materials can be realized, so that a plurality of reactions which cannot be realized in the conventional reactor can be realized in the tubular reactor. However, the conventional dynamic tubular reactors are all horizontal, and the horizontal reactor belongs to plug flow and is relatively suitable for the reaction of liquid phase and liquid phase. When gas phase participates in or is produced, backmixing phenomenon often occurs, and the contact time of the gas and the liquid is short, so that the mass transfer effect is poor. This still has limitations in the applicability of tubular reactors in chemical reactions.

Disclosure of Invention

The utility model provides a novel vertical dynamic tube reactor, which aims to solve the problem of back mixing phenomenon of the reactor when gas phase participates in or is produced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the novel vertical dynamic tube reactor comprises a reaction device, a sealing device and a power device, wherein the reaction device comprises a stirring shaft, a cylinder body and an outer jacket, the cylinder body is a vertical cylinder body, the stirring shaft is arranged in the cylinder body, and the stirring shaft is connected with the cylinder body through flange plates at two ends of the cylinder body; the stirring shaft adopts a hollow structure to form a first heat exchange cavity, a heat exchange medium is introduced into the first heat exchange cavity, a first connecting end and a second connecting end are respectively arranged at the opposite ends of the stirring shaft, and an extending cylinder is respectively connected with a bearing in a rotating way to form a reaction cavity between the cylinder and the stirring shaft; the outer jacket is arranged outside the cylinder body, and is provided with a material inlet and a material outlet; the opposite ends of the outer jacket are also respectively connected with the first connecting end and the second connecting end, a second heat exchange cavity is formed between the outer jacket and the cylinder, a heat exchange inlet is arranged on the outer jacket, and a heat exchange medium is introduced into the second heat exchange cavity through the heat exchange inlet; the upper end of the cylinder body is provided with a heat exchange outlet; mechanical seal is adopted between the stirring shaft and the cylinder.

Preferably, the stirring shaft is provided with a plurality of fins, and the fins spirally extend from one end of the cylinder to the other end.

Preferably, the material outlet and the material inlet are positioned at the upper end and the lower end of the outer jacket, the material inlet end pipe and the material outlet end pipe penetrate through the outer jacket to be communicated with the reaction cavity, and the upper end of the material outlet is provided with a cylinder exhaust port and a jacket exhaust port.

Preferably, the device is characterized in that two drain outlets are arranged on the flange plate at the lower port of the cylinder body, and the drain outlets are a cylinder body drain outlet and a jacket drain outlet respectively.

Preferably, the mechanical seal comprises a mechanical seal assembly and a water storage tank; the mechanical seal assembly is connected with an end cover at the end part of the cylinder body; the end cover is fixedly connected with the first connecting end head or the second connecting end head.

Preferably, the lower end of the cylinder is fixedly connected with the platform device through a flange plate; a power device is arranged in the platform device, and the power device comprises a motor; the lower end of the stirring shaft is rotatably supported on an end cover at the lower end of the cylinder body, and the lower end of the stirring shaft extends out of the cylinder body and is connected with the motor through a transmission belt.

Preferably, a double electromagnetic valve structure is arranged on the vent pipe of the upper port of the water storage tank, and comprises an air supplementing electromagnetic valve and an air discharging electromagnetic valve; one end of the vent pipe is communicated with the air source, and the other end of the vent pipe is communicated with the inner cavity of the water storage tank.

Preferably, the upper part of the side wall of the water storage tank is provided with a buffer liquid inlet, is connected with the flange plate of the upper port of the cylinder body through a connecting pipe, and extends into the cylinder body; the lower part of the side wall of the water storage tank is provided with a buffer liquid outlet, is connected with the flange plate of the lower port of the cylinder body through a connecting pipe, and stretches into the cylinder body.

Compared with the prior art, the utility model has the advantages that:

a novel vertical dynamic tube reactor adopts a special vertical tube space structure, solves the problem of back mixing when gas phase participates in or is produced, has longer contact time between gas and liquid, can improve mass transfer efficiency and heat transfer efficiency, has the advantages of accurate automatic control and small reaction volume, and can quickly clean and maintain the structure of a fin of a stirring shaft, thereby providing a novel choice for a tube reaction technology.

Drawings

FIG. 1 is a block diagram of a novel vertical dynamic tube reactor of the present utility model;

FIG. 2 is a schematic view of a portion of the interior of the cartridge of the present utility model;

in the figure, a 1-cylinder; 2-a stirring shaft; 3-an outer jacket; 4-a first heat exchange cavity; 5-a first connection terminal; 6-a second connection end; 7, material inlet; 8, material outlet; 9-a second heat exchange cavity; 10-fins; 11-a cylinder exhaust port; 12-jacket exhaust port; 13, a cylinder cleaning port; 14-jacket purge port; 15-a temperature sensor; 16-a pressure sensor; 17-a seal assembly; 18-a water storage tank; 19-an electric motor; 20-an air supplementing electromagnetic valve; 21-an air discharging electromagnetic valve; 22-a heat exchange inlet; 23-heat exchange outlet.

Detailed Description

Further description is provided below with reference to the accompanying drawings. As shown in fig. 1, the novel vertical dynamic tube reactor comprises a reaction device, a sealing device and a power device, wherein the reaction device comprises a cylinder body 1, a stirring shaft 2 and an outer jacket 3, the cylinder body 1 is a vertical cylinder body, the stirring shaft 2 is arranged in the cylinder body 1, and the stirring shaft 2 is connected with the cylinder body 1 through flange plates at two ends of the cylinder body 1; the stirring shaft 2 adopts a hollow structure to form a first heat exchange cavity 4, a heat exchange medium is filled in the first heat exchange cavity 4, a first connecting end 5 and a second connecting end 6 are respectively arranged at the opposite ends of the stirring shaft 2, a cylinder body 1 extends out to be respectively connected with a bearing in a rotating way, and a reaction cavity is formed between the cylinder body 1 and the stirring shaft 2; the outer jacket 3 is arranged outside the cylinder body, and the outer jacket 3 is provided with a material inlet 7 and a material outlet 8; the opposite ends of the outer jacket 3 are also connected with the first connecting end 5 and the second connecting end 6 respectively, a second heat exchange cavity 9 is formed between the outer jacket 3 and the cylinder 1, a heat exchange inlet 22 is arranged on the outer jacket 3, and a heat exchange medium is introduced into the second heat exchange cavity 9 through the heat exchange inlet 22; the upper end of the cylinder body 1 is provided with a heat exchange outlet 23; and a mechanical seal is adopted between the stirring shaft 2 and the cylinder body 1. Be equipped with a plurality of fins 10 on the (mixing) shaft 2, the fin 10 is the heliciform from the one end of barrel 1 to the other end and extends, and these fins 10 can let the material produce the turbulent flow effect when flowing through at the heliciform structure that space within range formed, realizes abundant mixing and mass transfer to realize quick reactive's purpose, the structure of fin 10 on the (mixing) shaft 2 can be quick clear up and maintain. The material outlet 8 and the material inlet 7 are positioned at the upper end and the lower end of the outer jacket 3, the material inlet 7 end pipe and the material outlet 8 end pipe are respectively communicated with the reaction cavity through the outer jacket 3, and the upper end of the material outlet 8 is provided with a cylinder exhaust port 11 and a jacket exhaust port 12. Two drain outlets are arranged on the flange plate at the lower port of the cylinder body 1, and the drain outlets are a cylinder body drain outlet 13 and a jacket drain outlet 14 respectively. The outer jacket 3 is provided with a temperature sensor 15 and a pressure sensor 16 which are respectively used for detecting the temperature and the pressure in the reaction cavity. The mechanical seal comprises a mechanical seal assembly 17 and a water storage tank 18; the mechanical seal assembly 17 is connected with an end cover at the end part of the cylinder body 1; the end cover is fixedly connected with the first connecting end 5 or the second connecting end 6. The lower end of the cylinder body 1 is fixedly connected with the platform device through a flange plate; a power device is arranged in the platform device and comprises a motor 19; the lower end of the stirring shaft 2 is rotatably supported on an end cover at the lower end of the cylinder body 1, and the lower end of the stirring shaft extends out of the cylinder body 1 and is connected with a motor 19 through a transmission belt. A double electromagnetic valve structure is arranged on a vent pipe of the upper port of the water storage tank 18, and comprises an air supplementing electromagnetic valve 20 and an air discharging electromagnetic valve 21; one end of the vent pipe is communicated with an air source, and the other end of the vent pipe is communicated with the inner cavity of the water storage tank 18. The mechanical seal needs a certain pressure to keep effective seal, wherein the upper part of the water storage tank 18 is provided with gas, the lower part is provided with heat exchange liquid, the gas part is connected with a double-electromagnetic valve structure, a preset working pressure interval is set, and when the pressure sensor senses the overpressure, the gas unloading electromagnetic valve 21 is automatically opened to release the pressure; when the pressure of the equipment is insufficient, the air supplementing electromagnetic valve 20 is automatically opened, and the air source supplements the pressure for the equipment, so that the equipment is ensured to be in a normal working pressure range. The upper part of the side wall of the water storage tank 18 is provided with a buffer liquid inlet, is connected with an upper port flange of the cylinder 1 through a connecting pipe and extends into the cylinder 1; the lower part of the side wall of the water storage tank 18 is provided with a buffer liquid outlet, is connected with a flange plate at the lower port of the cylinder 1 through a connecting pipe, and extends into the cylinder 1. When the mechanical seal requires cooling by way of the chilled water line, the water reservoir 18 may provide cooling water to effect an effective seal.

Claims

1. The novel vertical dynamic tube reactor comprises a reaction device, a sealing device and a power device, and is characterized in that the reaction device comprises a barrel, a stirring shaft and an outer jacket, wherein the barrel is a vertical barrel, the stirring shaft is arranged in the barrel, and the stirring shaft is connected with the barrel through flange plates at two ends of the barrel; the stirring shaft adopts a hollow structure to form a first heat exchange cavity, a heat exchange medium is introduced into the first heat exchange cavity, a first connecting end and a second connecting end are respectively arranged at the opposite ends of the stirring shaft, and an extending cylinder is respectively connected with a bearing in a rotating way to form a reaction cavity between the cylinder and the stirring shaft; the outer jacket is arranged outside the cylinder body, and is provided with a material inlet and a material outlet; the opposite ends of the outer jacket are also respectively connected with the first connecting end and the second connecting end, a second heat exchange cavity is formed between the outer jacket and the cylinder, a heat exchange inlet is arranged on the outer jacket, and a heat exchange medium is introduced into the second heat exchange cavity through the heat exchange inlet; the upper end of the cylinder body is provided with a heat exchange outlet; mechanical seal is adopted between the stirring shaft and the cylinder.

2. The novel vertical dynamic tube reactor according to claim 1, wherein the stirring shaft is provided with a plurality of fins, and the fins extend spirally from one end of the cylinder to the other end.

3. The novel vertical dynamic tube reactor according to claim 1, wherein the material outlet and the material inlet are positioned at the upper end and the lower end of the outer jacket, the material inlet end tube and the material outlet end tube are respectively communicated with the reaction cavity through the outer jacket, and the upper end of the material outlet is provided with a cylinder exhaust port and a jacket exhaust port.

4. The novel vertical dynamic tube reactor according to claim 1, wherein two drain outlets are arranged on the flange plate at the lower port of the cylinder body, and the drain outlets are a cylinder body drain outlet and a jacket drain outlet respectively.

5. The novel vertical dynamic tube reactor according to claim 1, wherein the outer jacket is provided with a temperature sensor and a pressure sensor for detecting the temperature and the pressure in the reaction chamber respectively.

6. The novel vertical dynamic tube reactor according to claim 1, wherein the mechanical seal comprises a mechanical seal assembly and a water storage tank; the mechanical seal assembly is connected with an end cover at the end part of the cylinder body; the end cover is fixedly connected with the first connecting end head or the second connecting end head.

7. The novel vertical dynamic tube reactor according to claim 1, wherein the lower end of the cylinder is fixedly connected with the platform device through a flange plate; a power device is arranged in the platform device, and the power device comprises a motor; the lower end of the stirring shaft is rotatably supported on an end cover at the lower end of the cylinder body, and the lower end of the stirring shaft extends out of the cylinder body and is connected with the motor through a transmission belt.

8. The novel vertical dynamic tube reactor according to claim 6, wherein a double electromagnetic valve structure is arranged on a vent tube of the upper port of the water storage tank, and comprises an air supplementing electromagnetic valve and an air discharging electromagnetic valve; one end of the vent pipe is communicated with the air source, and the other end of the vent pipe is communicated with the inner cavity of the water storage tank.

9. The novel vertical dynamic tube reactor according to claim 6, wherein the upper part of the side wall of the water storage tank is provided with a buffer liquid inlet, is connected with the upper port flange of the cylinder body through a connecting pipe, and extends into the cylinder body; the lower part of the side wall of the water storage tank is provided with a buffer liquid outlet, is connected with the flange plate of the lower port of the cylinder body through a connecting pipe, and stretches into the cylinder body.