High-pressure reactor for preparing perfluoromethyl vinyl ether

Abstract

The high-pressure reactor comprises a reaction kettle, the reaction kettle comprises a heat preservation barrel, an inner barrel is fixedly installed on the inner wall of the heat preservation barrel, a conical bottom barrel is connected to the bottom of the inner barrel in a welded mode, a sealing ring is connected to the top of the heat preservation barrel and the top of the inner barrel in a welded mode, and a locking ring is connected to the inner wall of the inner barrel in a welded mode. The inner wall of the locking ring is fixedly connected with a positioning ring through a first bolt, the inner wall of the positioning ring is fixedly connected with a top cover through a second bolt, the locking ring and a sealing ring are matched for use, the top cover is fixedly installed on the top of the heat preservation cylinder and the top of the inner cylinder in a fastened and sealed mode, and a feeding cylinder is fixedly installed on the top of the top cover in a matched mode; the two first valves which are distributed up and down are arranged at the bottom of the feeding cylinder, so that the interior of the inner cylinder can be kept sealed, the situation of pressure relief of the inner cylinder can be effectively avoided, the use practicability of the equipment is improved, and raw materials can be conveniently added in the preparation reaction process.

Description

Technical Field

[0001] This utility model relates to the technical field of road surface crack detection devices, and in particular to a high-pressure reactor for the preparation of perfluoromethyl vinyl ether. Background Technology

[0002] Perfluoromethyl vinyl ether (PFME) is an important fluorine-containing organic compound with wide applications in the chemical industry. Its preparation requires a high-pressure reaction environment. Typically, the process involves adding PFME raw materials into the reactor. This often necessitates opening the lid of the high-pressure reactor, leading to significant pressure loss and making it difficult to maintain stable pressure during the addition of raw materials, thus hindering its usability. Utility Model Content

[0003] The purpose of this invention is to provide a high-pressure reactor for the preparation of perfluoromethyl vinyl ether.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses a high-pressure reactor for the preparation of perfluoromethyl vinyl ether, comprising a reaction vessel, the reaction vessel including a heat-insulating cylinder, an inner cylinder fixedly installed on the inner wall of the heat-insulating cylinder, a conical bottom cylinder welded to the bottom of the inner cylinder, a sealing ring welded to the top of the heat-insulating cylinder and the inner cylinder, a locking ring welded to the inner wall of the inner cylinder, a positioning ring fixedly connected to the inner wall of the locking ring by a first bolt, a top cover fastened to the inner wall of the positioning ring by a second bolt, a sealing ring connecting the bottom perimeter of the top cover to the top perimeter of the sealing ring, a feeding cylinder fixedly installed on the top of the top cover, two first valves installed on the outer wall of the bottom feed pipe of the feeding cylinder, and latches for fastening the top cover evenly installed on the outer wall of the heat-insulating cylinder.

[0006] Furthermore, a temperature regulating chamber is provided between the insulation cylinder and the inner cylinder. The inner wall of the temperature regulating chamber is fixedly connected to an input pipe and an output pipe, which are used to input and output heat exchange medium to the inner wall of the temperature regulating chamber.

[0007] Furthermore, a stirring assembly is installed at the bottom of the conical bottom cylinder, and an output pipe is fixedly connected to the center of the bottom of the conical bottom cylinder. The stirring assembly includes a stirring tube, which is rotatably connected to the inner wall of the output pipe.

[0008] Furthermore, a stirring blade is fixedly installed on the top outer wall of the stirring tube, and the outer wall of the stirring blade is in rotatable contact with the inner wall of the conical bottom cylinder and the inner cylinder. Stirring plates are uniformly fixedly installed on the inner wall of the stirring blade, and discharge holes are uniformly opened on the inner wall of the stirring tube.

[0009] Furthermore, the inner wall of the stirring tube is rotatably connected to the feeding tube, and the outer wall of the feeding tube is fixedly installed with a second valve.

[0010] Furthermore, the outer wall of the feeding pipe is fixedly connected to the outer wall of the bottom of the conical bottom cylinder by a bracket, and a servo motor is fixedly installed on the outer wall of the bottom of the conical bottom cylinder. The outer wall of the output shaft of the servo motor is connected to the outer wall of the discharge hole by gear meshing.

[0011] Furthermore, a threaded ring is welded to the center of the positioning ring, and the top center of the top cover is fixedly connected to the inner wall of the threaded ring by a second bolt.

[0012] Furthermore, a second sealing ring is fixedly installed at the connection between the second bolt and the top of the top cover. The latch includes a retainer, and several retainers are provided. The top of the retainer has a rotating bolt plate. The top of the top cover has an arc-shaped groove, and the bolt plate engages with the inner wall of the arc-shaped groove.

[0013] The high-pressure reactor for preparing perfluoromethyl vinyl ether provided by this utility model, as described above, has the following beneficial effects:

[0014] 1. The locking ring and sealing ring work together to securely seal the top cover on the top of the insulation cylinder and inner cylinder. The feeding cylinder is fixedly installed on the top of the top cover. Two first valves are set at the bottom of the feeding cylinder, which facilitates the addition of perfluoromethyl vinyl ether preparation raw materials to the inner cylinder. It also keeps the inner cylinder under sealed conditions, effectively preventing pressure leakage in the inner cylinder, improving the practicality of the equipment and facilitating the addition of raw materials during the preparation reaction.

[0015] 2. By setting the stirring blades to rotate and contact the inner walls of the inner cylinder and the conical bottom cylinder, it is convenient to scrape off the perfluoromethyl vinyl ether adsorbed on the inner walls of the inner cylinder and the conical bottom cylinder, facilitate the discharge of the perfluoromethyl vinyl ether, and facilitate the cleaning of the inner walls of the inner cylinder and the conical bottom cylinder, thereby improving the practicality of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the main structure of a high-pressure reactor for the preparation of perfluoromethyl vinyl ether provided in this embodiment of the present invention;

[0018] Figure 2 A bottom view schematic diagram of a structure for preparing perfluoromethyl vinyl ether provided in an embodiment of this utility model;

[0019] Figure 3 A top view schematic diagram of a perfluoromethyl vinyl ether preparation method provided in this embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the exploded structure of a high-pressure reactor for the preparation of perfluoromethyl vinyl ether provided in this embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the stirring assembly structure of a high-pressure reactor for the preparation of perfluoromethyl vinyl ether, provided as an embodiment of the present invention.

[0022] In the diagram: Insulation cylinder 100, inner cylinder 110, temperature regulating chamber 120, first output pipe 121, input pipe 122, sealing ring 130, locking ring 140, card seat 150, bolt plate 151, conical bottom cylinder 160, second output pipe 161, positioning ring 200, threaded ring 210, top cover 220, arc-shaped groove 221, feeding cylinder 222, first valve 223, sealing ring 224, first bolt 230, second bolt 240, second sealing ring 241, stirring pipe 300, servo motor 310, discharge hole 320, stirring blade 330, stirring plate 331, discharge pipe 340, bracket 341, second valve 342. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Example 1:

[0025] See Figures 1-4 As shown;

[0026] This invention relates to a high-pressure reactor for the preparation of perfluoromethyl vinyl ether, comprising a reaction vessel, an insulated cylinder 100, an inner cylinder 110 fixedly mounted on the inner wall of the insulated cylinder 100, a conical bottom cylinder 160 welded to the bottom of the inner cylinder 110, a sealing ring 130 welded to the top of the insulated cylinder 100 and the inner cylinder 110, a locking ring 140 welded to the inner wall of the inner cylinder 110, a positioning ring 200 fixedly connected to the inner wall of the locking ring 140 by a first bolt 230, a top cover 220 fastened to the inner wall of the positioning ring 200 by a second bolt, a sealing ring 224 connecting the bottom perimeter of the top cover 220 to the top perimeter of the sealing ring 130, a feeding cylinder 222 fixedly mounted on the top of the top cover 220, and a feeding pipe at the bottom of the feeding cylinder 222 with upper and lower... Two first valves 223 are installed. Locks for fastening the top cover 220 are evenly installed on the outer wall of the insulation cylinder 100. The top cover 220 is securely and sealed on the top of the insulation cylinder 100 and the inner cylinder 110 by setting a locking ring 140 and a sealing ring 130. A feeding cylinder 222 is fixedly installed on the top of the top cover 220. Two first valves 223 are set at the bottom of the feeding cylinder 222, which facilitates the addition of perfluoromethyl vinyl ether preparation raw materials to the inner cylinder 110. It also keeps the inner cylinder 110 under sealed conditions, effectively preventing the inner cylinder 110 from depressurizing, improving the practicality of the equipment and facilitating the addition of raw materials during the preparation reaction.

[0027] Example 2:

[0028] See Figure 4 As shown;

[0029] This invention discloses a high-pressure reactor for the preparation of perfluoromethyl vinyl ether. A temperature regulating chamber 120 is provided between the insulation cylinder 100 and the inner cylinder 110. The inner wall of the temperature regulating chamber 120 is fixedly connected to an input pipe 122 and a first output pipe 121. The input pipe 122 and the first output pipe 121 are used to input and output heat exchange medium to the inner wall of the temperature regulating chamber 120. By setting up the temperature regulating chamber 120, after the heat exchange medium is input into the temperature regulating chamber 120, the temperature in the inner cylinder 110 can be flexibly adjusted according to the preparation process of perfluoromethyl vinyl ether, thereby improving the reaction efficiency and the practicality of the equipment.

[0030] Example 3:

[0031] See Figures 2-5 As shown;

[0032] This invention discloses a high-pressure reactor for the preparation of perfluoromethyl vinyl ether. A stirring assembly is installed at the bottom of a conical bottom cylinder 160. A second output pipe 161 is fixedly connected to the center of the bottom of the conical bottom cylinder 160. The stirring assembly includes a stirring tube 300, which is rotatably connected to the inner wall of the second output pipe 161. Stirring blades 330 are fixedly installed on the top outer wall of the stirring tube 300. The outer wall of the stirring blades 330 rotatably contacts the inner walls of the conical bottom cylinder 160 and the inner cylinder 110. Stirring plates 331 are uniformly fixedly installed on the inner wall of the stirring blades 330. Discharge holes 320 are uniformly opened on the inner wall of the stirring tube 300. A feed pipe 340 is rotatably connected to the inner wall of the stirring tube 300. A second valve 342 is fixedly installed on the outer wall of the feed pipe 340. A support connects the outer wall of the feed pipe 340 to the bottom outer wall of the conical bottom cylinder 160. A servo motor 310 is fixedly installed on the outer wall of the bottom of the conical bottom cylinder 160. The outer wall of the output shaft of the servo motor 310 is connected to the outer wall of the discharge hole 320 through gear meshing. By turning on the servo motor 310, the servo motor 310 drives the stirring tube 300, stirring blade 330, and stirring plate 331 to rotate synchronously, so as to stir and mix the perfluoromethyl vinyl ether raw material evenly for the preparation of perfluoromethyl vinyl ether. After the preparation is completed, the perfluoromethyl vinyl ether in the inner cylinder 110 is discharged through the discharge pipe 340 by opening the second valve 342. By setting the stirring blade 330 to rotate and contact the inner wall of the inner cylinder 110 and the conical bottom cylinder 160, the perfluoromethyl vinyl ether can avoid adsorbing on the inner wall of the inner cylinder 110, which facilitates the cleaning of the inner cylinder 110.

[0033] Example 4:

[0034] See Figures 3-4 As shown;

[0035] This invention relates to a high-pressure reactor for the preparation of perfluoromethyl vinyl ether. A positioning ring 200 is welded to the center of a threaded ring 210. The top center of the top cover 220 is fixedly connected to the inner wall of the threaded ring 210 by a second bolt 240. A second sealing ring 241 is fixedly installed at the connection between the second bolt 240 and the top of the top cover 220. The locking mechanism includes a locking seat 150, of which several are provided. A rotating bolt plate 151 is located at the top of the locking seat 150. An arc-shaped groove 221 is provided on the top of the top cover 220. The bolt plate 151 engages with the inner wall of the arc-shaped groove 221. By using the arc-shaped groove 221 and the bolt plate 151 in conjunction, it is possible to further lock the top cover 220 after it has been locked with the second bolt 240, thereby improving the pressure-holding effect of the inner cylinder 110 and facilitating operation under high-pressure conditions.

[0036] The specific usage process of this utility model is as follows: When used by those skilled in the art, the heat exchange medium is introduced into the temperature regulating chamber 120 through the cooperation of the input pipe 122 and the first output pipe 121, thereby heating the raw material for the preparation of perfluoromethyl vinyl ether inside the inner cylinder 110 to reach the rated temperature required for the reaction and promote the reaction rate. The positioning ring 200 is fastened to the outer wall of the locking ring 140 by the first bolt 230. Then, the top cover 220 is fixed to the top of the insulation cylinder 100 and the inner cylinder 110 by the second bolt 240, so that the top cover 220 is sealed to the top inner wall of the insulation cylinder 100 and the inner cylinder 110. When adding the raw material for the preparation of perfluoromethyl vinyl ether into the inner cylinder 110, the first valve 223 above is opened, and then the raw material for the preparation of perfluoromethyl vinyl ether to be added is added. The material is poured into the feeding cylinder 222, allowing the raw material for preparing perfluoromethyl vinyl ether to pass through the upper first valve 223. Then, the upper first valve 223 is closed, and the lower first valve 223 is opened, allowing the raw material for preparing perfluoromethyl vinyl ether to be transported into the inner cylinder 110 under gravity. Then, the lower first valve 223 is closed again, thus maintaining the sealing effect of the top cover during the material feeding process. By turning on the servo motor 310, the servo motor 310 drives the stirring tube 300, stirring blade 330, and stirring plate 331 to rotate synchronously, stirring and mixing the perfluoromethyl vinyl ether raw material evenly for the preparation of perfluoromethyl vinyl ether. After the preparation is completed, the second valve 342 is opened, allowing the perfluoromethyl vinyl ether in the inner cylinder 110 to be discharged through the discharge pipe 340.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-pressure reactor for the preparation of perfluoromethyl vinyl ether, comprising a reaction vessel, the reaction vessel including a heat-insulating cylinder (100), an inner cylinder (110) fixedly installed on the inner wall of the heat-insulating cylinder (100), and a conical bottom cylinder (160) welded to the bottom of the inner cylinder (110), characterized in that, A sealing ring (130) is welded to the top of the insulation cylinder (100) and the inner cylinder (110). A locking ring (140) is welded to the inner wall of the inner cylinder (110). A positioning ring (200) is fixedly connected to the inner wall of the locking ring (140) by a first bolt (230). A top cover (220) is fastened to the inner wall of the positioning ring (200) by a second bolt. A sealing ring (224) is connected between the bottom periphery of the top cover (220) and the top periphery of the sealing ring (130). A feeding cylinder (222) is fixedly installed on the top of the top cover (220). Two first valves (223) are installed on the bottom feed pipe of the feeding cylinder (222). Locks for fastening the top cover (220) are evenly installed on the outer wall of the insulation cylinder (100).

2. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 1, characterized in that, A temperature regulating chamber (120) is provided between the insulation cylinder (100) and the inner cylinder (110). The inner wall of the temperature regulating chamber (120) is fixedly connected to an input pipe (122) and a first output pipe (121). The input pipe (122) and the first output pipe (121) are used to input and output heat exchange medium to the inner wall of the temperature regulating chamber (120).

3. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 1, characterized in that, A stirring assembly is installed at the bottom of the conical bottom cylinder (160). A second output pipe (161) is fixedly connected to the center of the bottom of the conical bottom cylinder (160). The stirring assembly includes a stirring tube (300), which is rotatably connected to the inner wall of the second output pipe (161).

4. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 3, characterized in that, A stirring blade (330) is fixedly installed on the top outer wall of the stirring tube (300). The outer wall of the stirring blade (330) is in rotatable contact with the inner wall of the conical bottom cylinder (160) and the inner cylinder (110). Stirring plates (331) are evenly fixedly installed on the inner wall of the stirring blade (330). Discharge holes (320) are evenly opened on the inner wall of the stirring tube (300).

5. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 4, characterized in that, The inner wall of the stirring tube (300) is rotatably connected to the feeding tube (340), and the outer wall of the feeding tube (340) is fixedly installed with a second valve (342).

6. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 5, characterized in that, The outer wall of the feeding pipe (340) is fixedly connected to the bottom outer wall of the cone bottom cylinder (160) by a bracket (341). A servo motor (310) is fixedly installed on the bottom outer wall of the cone bottom cylinder (160). The outer wall of the output shaft of the servo motor (310) is connected to the outer wall of the discharge hole (320) by gear meshing.

7. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 1, characterized in that, The positioning ring (200) is welded to the center of the threaded ring (210), and the top center of the top cover (220) is fixedly connected to the inner wall of the threaded ring (210) by the second bolt (240).

8. The high-pressure reactor for preparing perfluoromethyl vinyl ether according to claim 7, characterized in that, The second bolt (240) is fixedly installed with the second sealing ring (241) at the connection between the top of the top cover (220). The latch includes a retainer (150), and there are several retainers (150). The top of the retainer (150) has a rotating bolt plate (151). The top of the top cover (220) has an arc-shaped groove (221). The bolt plate (151) is engaged with the inner wall of the arc-shaped groove (221).

Images