Isomerization reaction device

Abstract

The utility model discloses an isomerization reaction device. The isomerization reaction device comprises a pin shaft, stirring blades and a connecting rod, according to the isomerization reaction device, the output end of a first motor is fixedly connected with a rotating shaft, the rotating shaft is inserted into a reaction kettle, the outer side of the bottom of the rotating shaft is fixedly connected with stirring blades, the upper portion of the reaction kettle is rotationally installed on an installation frame through a pin shaft, and a second rotating disc is rotationally installed at the position, corresponding to a first rotating disc, of the installation frame; a second motor is fixedly mounted at the position, corresponding to the second turntable, of the inner side of the mounting frame, the output end of the second motor is fixedly connected with the second turntable, stirring blades can be directly driven by the first motor through the rotating shaft for stirring and dispersing, meanwhile, the second turntable can be driven by the second motor to rotate, and then the first turntable is driven by the connecting rod to swing; therefore, the reaction kettle is driven by the pin shaft to swing, a double mixing effect of swinging and stirring is formed, and materials can be more quickly and uniformly mixed and dispersed during isomerization reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to an isomerization reaction device. Background Art

[0002] The oligomers synthesized with hexafluoropropylene as raw material are used in oil fields, fire protection, textiles, cleaning, papermaking and other industries, and are currently receiving more and more attention.

[0003] Hexafluoropropylene oligomers are mainly dimers (HFPD) and trimers. During synthesis, the ratio of dimers to trimers can be controlled by changing the solvent, catalyst, temperature and other conditions. HFPD's CAS number is 1584-03-8, and its molecular formula is C6F 12 HFPD has a relative molecular mass of 300.0, a boiling point of 48-51°C, and a relative density of 1.62. It has three structures: 1) perfluoro-E-(methylpent-2-ene); 2) perfluoro-Z-(methylpent-2-ene); and 3) perfluoro-2-methylpent-2-ene. 1) and 2) are cis-trans isomers, collectively referred to as D-1; 3) is D-2. D-1 is inactive and generally does not participate in chemical reactions; D-2 ​​has active chemical properties and can be used in the synthesis of downstream surfactants. D-1 can be converted to D-2 under certain conditions. To obtain the chemically active D-2, the dimer D-1 must be isomerized. This isomerization reaction, catalyzed by an alkali metal fluorinating agent in a polar solvent, can transform the chemically inert D-1 into the thermodynamically stable structure D-2 over a long period of time. Using sulfolane as solvent and KF as catalyst, long-term reaction at temperatures above 100°C can cause structural conversion. Using a composite catalyst of crown ether and KF in acetonitrile solution can cause D-1 structure conversion. The reaction can reach a conversion rate of more than 99.0% within 3 hours, and the temperature can be controlled at around 40°C.

[0004] Alimerization reactions are usually carried out in a reactor. During the use of existing reactors, dispersion blades are usually used for stirring to accelerate the mixing of reactants, thereby improving the reaction efficiency. However, stirring only by dispersion blades has the problem of low stirring efficiency. Therefore, an isomerization reaction device is proposed to optimize the existing reactor. Utility Model Content

[0005] The purpose of the present invention is to provide an isomerization reaction device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An isomerization reaction device includes a mounting frame, wherein a reactor compatible with the mounting frame is provided on the inner side of the top of the mounting frame, a first motor is fixedly mounted on the top of the reactor, an output end of the first motor is fixedly connected to a rotating shaft, the rotating shaft is inserted into the reactor and a stirring blade is fixedly connected to the outer side of the bottom, the upper part of the reactor is rotatably mounted on the mounting frame via a pin shaft, one of the pin shafts is rotated to pass through the mounting frame and is fixedly connected to a first turntable, a second turntable is rotatably mounted on the mounting frame corresponding to the first turntable, the first turntable and the second turntable are connected by a connecting rod, the two ends of the connecting rod are rotatably mounted on the eccentricity of the first turntable and the eccentricity of the second turntable respectively, a second motor is fixedly mounted on the inner side of the mounting frame corresponding to the second turntable, and the output end of the second motor is fixedly connected to the second turntable.

[0008] As a further solution of the present invention: a feeding pipe is fixedly connected to the top of the reactor and is communicated with the reactor. A first sealing cover is fixedly installed on the end of the feeding pipe by bolts. Feeding can be carried out into the reactor through the feeding pipe and the feeding pipe can be closed by the first sealing cover.

[0009] As a further solution of the present invention: the inner circumference of the reactor is provided with a scraper that fits therewith, and the two ends of the scraper are respectively fixedly connected to the top and bottom ends of the rotating shaft. The scraper can form a rotating support for the rotating shaft and can clean the inner wall of the reactor at the same time.

[0010] As a further solution of the present invention: the bottom of the reactor is fixedly connected to a discharge pipe connected thereto, the middle of the discharge pipe is fixedly connected to a branch pipe connected thereto, the bottom end of the discharge pipe is fixedly installed with a second cover by bolts, the second cover is threadedly connected to a threaded handle, the threaded end of the threaded handle is inserted into the discharge pipe and rotatably connected to a piston column, and the piston column is slidably connected in the discharge pipe.

[0011] As a further solution of the present invention: the reactor comprises a reactor body and a reactor cover, and the reactor cover is fixed to the reactor body by bolts.

[0012] As a further solution of the present invention: the outer side of the reactor is wrapped with an insulating shell, the pin shaft is fixedly connected to the insulating shell, a heating box is fixedly installed on the bottom of the mounting frame, a circulating pump is fixedly connected to one side of the heating box, the water inlet of the heating box is connected to the water outlet of the insulating shell through a hose, the water outlet of the circulating pump is connected to the water inlet of the insulating shell through a hose, and the water inlet of the circulating pump is connected to the water outlet of the heating box through a pipe.

[0013] As a further solution of the present invention: the heating box is provided with a liquid adding pipe, and a third sealing cover is fixedly installed on the liquid adding pipe by bolts. Heat conductive medium can be added to the heating box through the liquid adding pipe, and the liquid adding pipe can be closed by the third sealing cover. An electric heater is fixedly installed on the heating box in an inserted manner, a temperature sensor is fixedly installed on the inner wall of the heating box, and a temperature controller is fixedly installed on the outer wall of the heating box.

[0014] As a further solution of the present invention: the first motor, the second motor and the temperature controller are all externally connected to a power supply and a switch, and the electric heater and the temperature sensor are both electrically connected to the temperature controller via wires.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model can directly drive the stirring blades through the rotating shaft to stir and disperse through the first motor, and at the same time can drive the second turntable to rotate through the second motor, and then drive the first turntable to swing through the connecting rod, so as to drive the reactor to swing through the pin shaft, forming a dual mixing effect of swinging and stirring, which is convenient for faster and more uniform mixing and dispersion of materials during the isomerization reaction.

[0017] 2. The utility model can drive the scraper to rotate during the rotation of the shaft, thereby scraping the inner wall of the reactor to reduce material residue during discharge.

[0018] 3. The utility model seals the discharge pipe through the second cover, so that material can be discharged through the discharge pipe and the branch pipe. The threaded handle drives the piston column to slide in the discharge pipe, so that the top opening of the discharge pipe can be easily opened and closed, thereby facilitating discharge.

[0019] 4. In the present invention, the piston rod moves in the discharge pipe and can be partially inserted into the reactor, thereby preventing the reactants and solvent from being deposited on the upper end of the discharge pipe, resulting in inability to be stirred.

[0020] 5. The utility model can control the temperature of the heat-conducting medium in the heating box through the temperature controller, electric heater and temperature sensor, and circulate it with the circulating pump, so that the reactor can be kept at a constant temperature in a water bath, thereby regulating the temperature of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of an isomerization reaction device.

[0022] Figure 2 It is a cross-sectional view of an isomerization reaction device.

[0023] Figure 3 A side view of an isomerization reaction apparatus.

[0024] In the figure: 1. Mounting frame; 2. Reactor; 3. First motor; 4. Rotating shaft; 5. Stirring blade; 6. Pin; 7. First turntable; 8. Second turntable; 9. Connecting rod; 10. Second motor; 11. Feeding pipe; 12. First sealing cover; 13. Scraper; 14. Discharge pipe; 15. Branch pipe; 16. Second sealing cover; 17. Threaded handle; 18. Piston column; 19. Reactor body; 20. Reactor cover; 21. Insulation shell; 22. Heating box; 23. Circulation pump; 24. Liquid adding pipe; 25. Third sealing cover; 26. Electric heater; 27. Temperature sensor; 28. Temperature controller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 3 In an embodiment of the present utility model, an isomerization reaction device includes a mounting frame 1, a reactor 2 adapted thereto is provided on the inner side of the top of the mounting frame 1, a first motor 3 is fixedly mounted on the top of the reactor 2, an output end of the first motor 3 is fixedly connected to a rotating shaft 4, the rotating shaft 4 is inserted into the reactor 2 and a stirring blade 5 is fixedly connected to the outer side of the bottom, the upper part of the reactor 2 is rotatably mounted on the mounting frame 1 through a pin 6, one of the pins 6 is rotated to pass through the mounting frame 1 and is fixedly connected to a first turntable 7, a second turntable 8 is rotatably mounted on the mounting frame 1 corresponding to the first turntable 7, the first turntable 7 and the second turntable 8 are connected by a connecting rod 9, the two ends of the connecting rod 9 are rotatably mounted on the eccentric position of the first turntable 7 and the eccentric position of the second turntable 8 respectively, a second motor 10 is fixedly mounted on the inner side of the mounting frame 1 corresponding to the second turntable 8, and the output end of the second motor 10 is fixedly connected to the second turntable 8.

[0027] The first motor 3 can directly drive the stirring blade 5 through the rotating shaft 4 to stir and disperse. At the same time, the second turntable 8 can be driven to rotate by the second motor 10, and then the first turntable 7 can be driven to swing through the connecting rod 9, thereby driving the reactor 2 to swing through the pin 6, forming a dual mixing effect of swinging and stirring, which is convenient for faster and more uniform mixing and dispersion of materials during the isomerization reaction.

[0028] The top of the reactor 2 is fixedly connected to a feeding pipe 11 which is in communication with the reactor 2 . A first sealing cover 12 is fixed to the end of the feeding pipe 11 by bolts. Feeding can be carried out into the reactor 2 through the feeding pipe 11 and the feeding pipe 11 can be sealed by the first sealing cover 12 .

[0029] The inner circumference of the reactor 2 is provided with a scraper 13 that fits therewith. The two ends of the scraper 13 are fixedly connected to the top and bottom ends of the rotating shaft 4 respectively. The scraper 13 can form a rotation support for the rotating shaft 4 and can clean the inner wall of the reactor 2 at the same time.

[0030] During the rotation of the rotating shaft 4 , the scraper 13 can be driven to rotate, thereby scraping the inner wall of the reactor 2 to reduce material residue during discharge.

[0031] The bottom of the reactor 2 is fixedly connected to a discharge pipe 14 connected thereto, the middle of the discharge pipe 14 is fixedly connected to a branch pipe 15 connected thereto, the bottom end of the discharge pipe 14 is fixedly installed with a second cover 16 by bolts, and a threaded handle 17 is threadedly connected to the second cover 16, the threaded end of the threaded handle 17 is inserted into the discharge pipe 14 and is rotatably connected to a piston column 18, and the piston column 18 is slidably connected in the discharge pipe 14.

[0032] The discharge pipe 14 is closed by the second cover 16, so that material can be discharged through the discharge pipe 14 and the branch pipe 15, and the threaded handle 17 drives the piston rod 18 to slide in the discharge pipe 14, so that the top opening of the discharge pipe 14 can be easily opened and closed, thereby facilitating discharge.

[0033] The piston rod 18 moves in the discharge pipe 14 and can be partially inserted into the reactor 2, thereby preventing the reactants and solvent from being deposited on the upper end of the discharge pipe 14 and being unable to be stirred.

[0034] The reactor 2 includes a reactor body 19 and a reactor cover 20 , and the reactor cover 20 is fixed to the reactor body 19 by bolts.

[0035] The assembled design of the reactor body 19 and the reactor cover 20 allows the inner cavity of the reactor 2 to be opened, thereby facilitating cleaning of the inner cavity of the reactor 2 .

[0036] The outside of the reactor 2 is wrapped with an insulating shell 21, the pin shaft 6 is fixedly connected to the insulating shell 21, a heating box 22 is fixedly installed on the bottom of the mounting frame 1, and a circulating pump 23 is fixedly connected to one side of the heating box 22. The water inlet of the heating box 22 is connected to the water outlet of the insulating shell 21 through a hose, and the water outlet of the circulating pump 23 is connected to the water inlet of the insulating shell 21 through a hose, and the water inlet of the circulating pump 23 is connected to the water outlet of the heating box 22 through a pipe.

[0037] The heating box 22 is provided with a liquid adding pipe 24, and a third sealing cover 25 is fixedly installed on the liquid adding pipe 24 by bolts. Heat conducting medium can be added to the heating box 22 through the liquid adding pipe 24, and the liquid adding pipe 24 can be closed by the third sealing cover 25. An electric heater 26 is fixedly installed on the heating box 22 in an inserted manner, a temperature sensor 27 is fixedly installed on the inner wall of the heating box 22, and a temperature controller 28 is fixedly installed on the outer wall of the heating box 22.

[0038] The temperature of the heat-conducting medium in the heating box 22 can be controlled by the temperature controller 28 in conjunction with the electric heater 26 and the temperature sensor 27, and circulated by the circulating pump 23, so that the reactor 2 can be kept at a constant temperature in a water bath, thereby regulating the temperature of the reaction.

[0039] The first motor 3 , the second motor 10 and the temperature controller 28 are all externally connected to a power source and a switch, and the electric heater 26 and the temperature sensor 27 are both electrically connected to the temperature controller 28 via wires.

[0040] The working principle of this utility model is:

[0041] During use, the reactor 2 can be fed through the feeding pipe 11, and the feeding pipe 11 can be closed by the first cover 12. The first motor 3 can directly drive the stirring blade 5 through the rotating shaft 4 to stir and disperse, and the second motor 10 can drive the second turntable 8 to rotate, and then drive the first turntable 7 to swing through the connecting rod 9, thereby driving the reactor 2 to swing through the pin 6, forming a dual mixing effect of swinging and stirring. The temperature controller 28 can be used in conjunction with the electric heater 26 and the temperature sensor 27 to control the temperature of the heat-conducting medium in the heating box 22, and the circulating pump 23 can be used for circulation, so that the reactor 2 can be kept at a constant temperature in a water bath, thereby regulating the temperature of the reaction. The threaded handle 17 drives the piston rod 18 to slide in the discharge pipe 14, so that the top opening of the discharge pipe 14 can be easily opened and closed, thereby facilitating discharge. During the rotation of the rotating shaft 4, the scraper 13 can be driven to rotate, thereby scraping the inner wall of the reactor 2 to reduce material residue during discharge.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An isomerization reaction device, comprising a mounting frame (1), characterized in that: A reactor (2) adapted thereto is provided on the inner side of the top of the mounting frame (1), a first motor (3) is fixedly mounted on the top of the reactor (2), an output end of the first motor (3) is fixedly connected to a rotating shaft (4), the rotating shaft (4) is inserted into the reactor (2) and a stirring blade (5) is fixedly connected to the outer side of the bottom, the upper part of the reactor (2) is rotatably mounted on the mounting frame (1) via a pin shaft (6), one of the pin shafts (6) is rotated to pass through the mounting frame (1) and is fixedly connected to a first turntable (7), a second turntable (8) is rotatably mounted on the mounting frame (1) corresponding to the first turntable (7), the first turntable (7) and the second turntable (8) are connected by a connecting rod (9), the two ends of the connecting rod (9) are rotatably mounted on the eccentric position of the first turntable (7) and the eccentric position of the second turntable (8), respectively, a second motor (10) is fixedly mounted on the inner side of the mounting frame (1) corresponding to the second turntable (8), and the output end of the second motor (10) is fixedly connected to the second turntable (8).

2. An isomerization reaction device according to claim 1, characterized in that: A feeding pipe (11) is fixedly connected to the top of the reactor (2) and is in communication therewith, and a first sealing cover (12) is fixedly installed on the end of the feeding pipe (11) by means of bolts.

3. The isomerization reaction device according to claim 1, characterized in that: The inner circumference of the reactor (2) is provided with a scraper (13) fitted therewith, and the two ends of the scraper (13) are respectively fixedly connected to the top and bottom ends of the rotating shaft (4).

4. The isomerization reaction device according to claim 1, characterized in that: The bottom of the reactor (2) is fixedly connected to a discharge pipe (14) in communication therewith, the middle of the discharge pipe (14) is fixedly connected to a branch pipe (15) in communication therewith, the bottom end of the discharge pipe (14) is fixedly mounted with a second cover (16) by means of bolts, a threaded handle (17) is threadedly connected to the second cover (16), the threaded end of the threaded handle (17) is inserted into the discharge pipe (14) and is rotatably connected to a piston column (18), and the piston column (18) is slidably connected to the discharge pipe (14).

5. The isomerization reaction device according to claim 1, characterized in that: The reactor (2) comprises a reactor body (19) and a reactor cover (20), and the reactor cover (20) is fixedly mounted to the reactor body (19) by bolts.

6. The isomerization reaction device according to claim 1, characterized in that: The outside of the reactor (2) is wrapped with an insulating shell (21), a pin shaft (6) is fixedly connected to the insulating shell (21), a heating box (22) is fixedly installed at the bottom of the mounting frame (1), a circulation pump (23) is fixedly connected to one side of the heating box (22), a water inlet of the heating box (22) is connected to the water outlet of the insulating shell (21) through a hose, a water outlet of the circulation pump (23) is connected to the water inlet of the insulating shell (21) through a hose, and a water inlet of the circulation pump (23) is connected to the water outlet of the heating box (22) through a pipe.

7. The isomerization reaction device according to claim 6, characterized in that: The heating box (22) is provided with a liquid adding pipe (24), a third sealing cover (25) is fixedly installed on the liquid adding pipe (24) by means of bolts, an electric heater (26) is fixedly installed in an inserting manner on the heating box (22), a temperature sensor (27) is fixedly installed on the inner wall of the heating box (22), and a temperature controller (28) is fixedly installed on the outer wall of the heating box (22).

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