Perfluoro-2-methyl-2-pentene synthesis device and perfluorohexanone preparation system

Abstract

The invention discloses a perfluoro-2-methyl-2-pentene synthesis device and a perfluorohexanone preparation system.The perfluoro-2-methyl-2-pentene synthesis device comprises a reaction kettle and a raw material tank, the surface of one side of the reaction kettle is fixedly connected with a material conveying pipe, and the other end of the material conveying pipe and the surface of one side of the raw material tank are fixedly connected with a vertical tubular dynamic reactor; the other end of the vertical tubular dynamic reactor is fixedly connected with a heat exchanger, the surface of the other side of the heat exchanger is fixedly connected with a storage tank, and an auxiliary device is arranged on the surface of the conveying pipe. When the device is used for producing perfluoro-2-methyl-2-pentene gas, the conveying pipe can be more conveniently and efficiently maintained; and the inner wall of the conveying pipe is not easy to excessively adhere with catalyst impurities, the purity of the catalytic gas is further improved, and the catalytic gas can be more efficiently mixed and reacted with hexafluoropropylene, so that the finished product quality of the gas is improved, and the working efficiency and the using effect of the device are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of perfluorohexanone preparation, and in particular to a perfluoro-2-methyl-2-pentene synthesis device and a perfluorohexanone preparation system. Background Art

[0002] Perfluorohexanone is an important substitute for halon fire extinguishing agents and a compound belonging to the class of fluorinated ketones. It is a clear, colorless, odorless liquid that is super-pressurized with nitrogen and stored in high-pressure gas cylinders as part of a fire extinguishing system. In the preparation process of perfluorohexanone, perfluoro-2-methyl-2-pentene is generally prepared first.

[0003] In the preparation of traditional perfluorohexanone, perfluoro-2-methyl-2-pentene is first prepared, and the intermediate perfluoro-2,3-epoxy-2-methyl-pentane is synthesized from perfluoro-2-methyl-2-pentene, and then perfluorohexanone is further reacted.

[0004] The main principle is to add polar non-protonic solvent acetonitrile and a certain proportion of catalyst into the reactor, mix them evenly, then introduce raw material hexafluoropropylene (HFP), and under specified temperature and pressure conditions, the polymerization reaction generates a mixture of hexafluoropropylene dimer and hexafluoropropylene trimer, and the reaction products are processed by multiple equipment in sequence to complete the preparation. Therefore, in the traditional preparation, perfluoro-2-methyl-2-pentene and perfluorohexanone are combined to improve the preparation efficiency. However, it is found in actual use that in the long-term device preparation process, when the catalyst is processed by the reactor and enters the dynamic reactor through the feed pipe, there will be a small amount of impurities mixed in the catalytic gas and flow together, which leads to the purity of the catalytic gas being affected, which affects and reduces the effect of the mutual reaction with hexafluoropropylene, and ultimately leads to the quality of the finished perfluoro-2-methyl-2-pentene or perfluorohexanone gas, and also reduces the use effect and work efficiency of the device. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, during the long-term device preparation process, when the enzyme catalyst is treated in a reactor and enters a dynamic reactor through a feed pipe, a small amount of impurities will be mixed in the catalytic gas and flow together, which will affect the purity of the catalytic gas and reduce the effect of the mutual reaction with hexafluoropropylene, ultimately resulting in the quality of the finished perfluoro-2-methyl-2-pentene or perfluorohexanone gas, and also reduce the use effect and work efficiency of the device. A perfluoro-2-methyl-2-pentene synthesis device and a perfluorohexanone preparation system are proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a perfluoro-2-methyl-2-pentene synthesis device, including a reactor and a raw material tank, characterized in that: a feed pipe is fixedly connected to the surface of one side of the reactor, the other end of the feed pipe and the surface of one side of the raw material tank are fixedly connected to a vertical tubular dynamic reactor, the other end of the vertical tubular dynamic reactor is fixedly connected to a heat exchanger, and the other side surface of the heat exchanger is fixedly connected to a storage tank, and an auxiliary device is arranged on the surface of the feed pipe, and the auxiliary device enables the feed pipe to filter and remove impurities contained in the catalytic material when in use, thereby improving the reaction effect of the catalytic material and hexafluoropropylene and improving the quality of the finished product, and the arc surface of the feed pipe is provided with sealing devices on both sides of the auxiliary device, and the sealing devices make the installation of the auxiliary device more stable and firm, and ensure the sealing of the feed pipe in the use state, so as to make the reaction preparation more efficient.

[0007] The effect achieved by the above components is: when the device is used to produce gas, the auxiliary device is first used to maintain the feed pipe, and then the sealing device is used to fix the auxiliary device, and then the reactor is started to allow the catalyst to react inside the reactor and enter the vertical tubular dynamic reactor along the feed pipe. At the same time, the hexafluoropropylene raw material in the raw material tank will also enter at the same time, and then react in the vertical tubular dynamic reactor, and then enter the heat exchanger for further processing. Finally, the finished raw material will enter the storage tank for storage. At this time, when the device is used to produce gas, the feed pipe can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe is not prone to excessive adhesion of catalyst impurities, and the purity of the catalytic gas is further improved, and it can be more efficiently mixed with hexafluoropropylene to react, thereby improving the quality of the finished gas, and further improving the working efficiency and use effect of the device.

[0008] The cam is connected with a toothed plate at one end of which is a toothed plate, and the toothed plate is connected with a toothed plate at the other end of which is a toothed plate.

[0009] The effect achieved by the above components is: when the feed pipe needs to be maintained during the production and preparation of gas using the synthesis device, the operation of the device is first suspended, and then the filter is installed in the inner wall of the installation pipe, so that the fixed rod fixedly connected to one side of the filter is clamped in the fixed groove on the assembly rod, and then the installation pipe is rotated to make the rotating ring on the surface of the installation pipe located on one side of the connecting plate rotate on the rotating rod until and press the block at one end of the spring. When the installation pipe is aligned with the feed pipe, the block is released, and the block slides in the installation groove on the arc surface of the installation pipe under the action of the spring until the block is inserted into the groove on the surface of the feed pipe. At this time, the bolt is threadedly connected to one side of the rotating rod until the bolt is threadedly connected to the surface of the connecting plate. At this time, when the device is making gas, the feed pipe can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe is not easy to be excessively attached with catalyst impurities, and the purity of the catalytic gas is further improved, and it can be more efficiently mixed with hexafluoropropylene for reaction, thereby improving the quality of the finished gas and further improving the working efficiency and use effect of the device.

[0010] Preferably, a bearing is fixedly connected to the arc surface of the rotating rod, an inner ring of the bearing is fixedly connected to the arc surface of the rotating rod, and an outer ring of the bearing is fixedly connected to the inner wall of the rotating ring.

[0011] The effect achieved by the above components is: through the setting of the bearing, the rotating ring can rotate more smoothly, so that the mounting tube can be assembled more conveniently, and rotational friction is less likely to occur between the mounting ring and the rotating rod, thereby making the components less likely to be damaged, ensuring its stable rotation and use, thereby ensuring the normal use of the auxiliary device.

[0012] Preferably, an operating block is fixedly connected to one side surface of the bolt, and a surface of the operating block is provided with a plurality of evenly distributed anti-slip protrusions.

[0013] The effect achieved by the above components is: through the setting of the operating block, the bolt can be rotated more conveniently during use, so as to better fix the position of the connecting plate, so that the installation pipe can be more accurate and stable when docking with the feed pipe, which further improves the assembly effect of the installation pipe and the convenience of using the bolt.

[0014] Preferably, a plurality of evenly distributed reinforcement grooves are provided on the surface of the assembly rod at the position of the fixing groove, and a reinforcement block is clamped on the inner wall of the reinforcement groove, and the reinforcement block is fixedly connected to the surface of the fixing rod.

[0015] The effect achieved by the above-mentioned components is: through the clamping setting of the reinforcement groove and the reinforcement block, the fixing rod on one side of the filter screen is installed more stably and firmly, and is not easy to deflect, so as to better intercept impurities passing through the installation pipe, further better ensure the purity of the catalytic gas, improve the use effect of the catalyst, and further improve the quality of the manufactured gas product.

[0016] Preferably, a protective ring is fixedly connected to one side surface of the filter screen, and the protective ring is a rubber ring, and the protective ring is slidably inserted into the inner wall of the mounting tube.

[0017] The effect achieved by the above-mentioned components is: through the setting of the protective ring, when the filter is taken out, the protective ring can slide and rub against the inner wall of the installation tube, thereby better removing impurities adhering to the inner wall of the installation tube, and further improving the convenience of using the auxiliary device, which facilitates the replacement of installation tubes.

[0018] Preferably, the sealing device includes two mounting plates, which are respectively fixedly connected to the arc surface of the feed pipe and are located on both sides of the mounting pipe. The surfaces of the two mounting plates are respectively slidably connected with fixing rings, the inner walls of the fixing rings are clamped with sealing gaskets, the sealing gaskets are rubber gaskets, the sealing gaskets are sleeved on the arc surface of the mounting pipe, the arc surface of the fixing rings is provided with sliding grooves, the inner walls of the sliding grooves are slidably connected to the surfaces of the mounting plates, the surface of the fixing rings is fixedly connected with a mounting frame, the surface of the mounting frame is threadedly connected with a screw, and one end of the screw is rotatably connected with a reinforcement ring.

[0019] The effect achieved by the above components is: when the auxiliary device is installed on the feed pipe, first, two sealing rings are sleeved on the arc surfaces on both sides of the installation pipe, so that the sealing ring is located in the gap between the installation pipe and the feed pipe, and then the fixing ring is slid to make the slide groove on the fixing ring slide on the installation plate until the inner wall of the fixing ring contacts the arc surface of the sealing ring, and then the screw on the mounting frame is rotated to make the reinforcement ring move under the drive of the screw until it contacts and squeezes on the arc surface of the sealing ring. At this time, when the installation pipe of the auxiliary device is replaced and installed, the sealing of the feed pipe can be better guaranteed, and the catalytic material gas is not easy to leak, thereby ensuring the efficient reaction of hexafluoropropylene and the catalyst, and further improving the production and use effect of the device.

[0020] Preferably, limiting grooves are respectively formed through the inner walls of the mounting frame on the sides close to each other, the inner walls of the limiting grooves are slidably connected to limiting blocks, and the limiting blocks are fixedly connected to the arc surface of the reinforcement ring.

[0021] The effect achieved by the above components is: through the sliding setting of the limit block and the limit groove, the reinforcement ring moves more stably under the drive of the screw and is not easy to deflect, so that it can contact and squeeze on the arc surface of the sealing ring more stably and firmly, ensuring the sealing of the sealing ring to the feed pipe and better transporting the catalytic material.

[0022] Preferably, one end surface of the bolt is fixedly connected to a positioning plate, a positioning rod is inserted through the surface of the positioning plate, a positioning groove is provided on the surface of the mounting frame, and the positioning rod is inserted into the inner wall of the positioning groove.

[0023] The effect achieved by the above components is: through the setting of the positioning rod and the positioning groove, when the reinforcement ring is stably contacted and extruded on the sealing ring, the positioning rod is inserted along the positioning plate until the positioning rod is inserted into the positioning groove on the mounting frame. At this time, the screw rod can be better maintained stable and is not prone to rotation and loosening, thereby ensuring the sealing effect of the conveying pipe and further enhancing the functional use of the sealing device.

[0024] Preferably, the perfluorohexanone preparation system comprises the perfluoro-2-methyl-2-pentene synthesis device as described in any one of claims 1 to 9, and comprises a perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and a perfluorohexanone synthesis device; the perfluoro-2-methyl-2-pentene synthesis device, the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and the perfluorohexanone synthesis device are connected in sequence; the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device is the same as the perfluorohexanone synthesis device, respectively, wherein the vertical tubular dynamic reactor in the perfluoro-2-methyl-2-pentene synthesis device is replaced by a dynamic tubular reactor.

[0025] In summary, the beneficial effects of the present invention are:

[0026] In the present invention, when the device is producing perfluoro-2-methyl-2-pentene gas, the feed pipe can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe is not prone to excessive adhesion of catalyst impurities, and the purity of the catalytic gas is further improved, and it can be mixed with hexafluoropropylene for reaction more efficiently, thereby improving the quality of the finished gas and further improving the working efficiency and use effect of the device.

[0027] In the present invention, when the installation pipe of the auxiliary device is replaced and installed, the sealing of the feed pipe can be better guaranteed, and the catalytic material gas is not likely to leak, thereby ensuring the efficient reaction of hexafluoropropylene and the catalyst, and further improving the production and use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the perfluoro-2-methyl-2-pentene synthesis device of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the rotating rod of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the auxiliary device of the present invention;

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of some structures;

[0032] Figure 5 It is a schematic diagram of the inner wall cross-sectional structure of the mounting tube of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the filter screen of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the sealing device of the present invention;

[0035] Figure 8 For the present invention Figure 7 A schematic diagram of the side structure of

[0036] Fig. 9 For the present invention Figure 8 A schematic diagram of the side structure of

[0037] Fig.10 It is a schematic diagram of the perfluorohexanone synthesis device of the present invention.

[0038] Legend: 1. Reactor; 2. Feed pipe; 3. Auxiliary device; 31. Rotating rod; 32. Rotating ring; 33. Connecting plate; 34. Mounting pipe; 35. Mounting groove; 36. Spring; 37. Block; 38. Assembly rod; 39. Fixing groove; 310. Fixing rod; 311. Filter screen; 312. Bolt; 313. Operating block; 314. Bearing; 315. Guard ring; 316. Reinforcement groove; 317. Reinforcement block; 4. Sealing device; 41. Mounting plate; 42. Fixing ring; 43. Slide groove; 44. Sealing ring; 45. Mounting frame; 46. Screw; 47. Reinforcement ring; 48. Limiting block; 49. Limiting groove; 410. Positioning plate; 411. Positioning groove; 412. Positioning rod; 5. Raw material tank; 6. Vertical tubular dynamic reactor; 7. Heat exchanger; 8. Storage tank; 9. Dynamic tubular reactor. DETAILED DESCRIPTION

[0039] Reference Figure 1As shown, the present invention provides a technical solution: a perfluoro-2-methyl-2-pentene synthesis device and a perfluorohexanone preparation system, a perfluoro-2-methyl-2-pentene synthesis device, comprising a reactor 1 and a raw material tank 5, a feed pipe 2 is fixedly connected to one side surface of the reactor 1, the other end of the feed pipe 2 and the one side surface of the raw material tank 5 are fixedly connected to a vertical tubular dynamic reactor 6, the other end of the vertical tubular dynamic reactor 6 is fixedly connected to a heat exchanger 7, the other side surface of the heat exchanger 7 is fixedly connected to a storage tank 8, an auxiliary device 3 is arranged on the surface of the feed pipe 2, the auxiliary device 3 enables the feed pipe 2 to filter and remove impurities contained in the catalytic material when in use, improves the reaction effect of the catalytic material and hexafluoropropylene, and improves the quality of the finished product, the arc surface of the feed pipe 2 is located on both sides of the auxiliary device 3 and is provided with sealing devices 4, the sealing devices 4 make the installation of the auxiliary device 3 more stable and firm, and ensure the use of the feed pipe 2 In order to improve the sealing performance in the state, the reaction preparation is more efficient. When the device is used to make gas, the auxiliary device 3 is first used to maintain the feed pipe 2, and then the sealing device 4 is used to fix the auxiliary device 3, and then the reactor 1 is started to make the catalyst react inside the reactor 1, and enter the vertical tubular dynamic reactor 6 along the feed pipe 2. At the same time, the hexafluoropropylene raw material in the raw material tank 5 will also enter at the same time, and then react in the vertical tubular dynamic reactor 6, and then enter the heat exchanger 7 for further processing. The final finished raw material will enter the storage tank 8 for storage. At this time, when the device is used to make gas, the feed pipe 2 can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe 2 is not easy to excessively adhere to catalyst impurities, and the purity of the catalytic gas is further improved, which can be more efficiently mixed with hexafluoropropylene for reaction, thereby improving the quality of the finished gas, and further improving the working efficiency and use effect of the device.

[0040] Reference Figure 1 - Fig. 9As shown, in this embodiment: the auxiliary device 3 includes a rotating rod 31, the rotating rod 31 is fixedly connected to the arc surface of the feed pipe 2, a rotating ring 32 is rotatably connected to the arc surface of the rotating rod 31, and a number of evenly distributed connecting plates 33 are fixedly connected to the arc surface of the rotating ring 32, and a mounting tube 34 is fixedly connected to one side surface of the connecting plate 33, and two mounting grooves 35 are respectively provided on the two side surfaces of the mounting tube 34, and springs 36 are respectively fixedly connected to the inner walls of the two mounting grooves 35, and a clamping block 37 is fixedly connected to the other end of the spring 36, and the clamping block 37 is slidably connected to the inner wall of the mounting groove 35, and two grooves are respectively provided on the side of the feed pipe 2 located at the installation position of the mounting tube 34, and the sliders on the inner walls of the two mounting grooves 35 are respectively connected to the inner walls of the two grooves The inner wall of the mounting tube 34 is fixedly connected with an assembly rod 38, and a fixing groove 39 is provided on one side surface of the assembly rod 38. A fixing rod 310 is clamped on the inner wall of the fixing groove 39. A filter screen 311 is fixedly connected to one end of the fixing rod 310. A bolt 312 is threadedly connected through the surface of the rotating rod 31. The bolt 312 is threadedly connected to the surface of one side of the connecting plate 33. When the feed pipe 2 needs to be maintained during the production and preparation of gas using the synthesis device, the operation of the device is first suspended, and then the filter screen 311 is installed in the inner wall of the mounting tube 34, so that the fixing rod 310 fixedly connected to one side of the filter screen 311 is clamped in the fixing groove 39 on the mounting rod 38, and then the mounting tube 34 is rotated so that the surface of the mounting tube 34 is located on the connecting plate The rotating ring 32 on one side of the rotating rod 33 rotates on the rotating rod 31 until and presses the block 37 at one end of the spring 36. When the mounting tube 34 is aligned with the feed pipe 2, the block 37 is released. The block 37 slides in the mounting groove 35 on the arc surface of the mounting tube 34 under the action of the spring 36 until the block 37 is inserted into the groove on the surface of the feed pipe 2. At this time, the bolt 312 is threadedly connected to one side of the rotating rod 31 until the bolt 312 is threadedly connected to the surface of the connecting plate 33. At this time, when the device is producing gas, the feed pipe 2 can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe 2 is not prone to excessive adhesion of catalyst impurities, and the purity of the catalytic gas is further improved, and it can be more efficiently mixed with hexafluoropropylene to react, thereby improving the quality of the finished gas. The working efficiency and use effect of the device are further improved. A bearing 314 is fixedly connected to the arc surface of the rotating rod 31. The inner ring of the bearing 314 is fixedly connected to the arc surface of the rotating rod 31. The outer ring of the bearing 314 is fixedly connected to the inner wall of the rotating ring 32. The setting of the bearing 314 makes the rotating ring 32 smoother when rotating, so that it is more convenient to assemble the mounting tube 34, so that it is not easy to have rotational friction between the mounting ring and the rotating rod 31, and thus the components are not easy to be damaged, thereby ensuring its stable rotation and use, thereby ensuring the normal use of the auxiliary device 3. An operating block 313 is fixedly connected to the surface of one side of the bolt 312. The surface of the operating block 313 is provided with a plurality of evenly distributed anti-slip protrusions. Through the setting of the operating block 313,The bolt 312 can be rotated more conveniently during use, so as to better fix the position of the connecting plate 33, so that the mounting pipe 34 can be more accurately and firmly connected to the feed pipe 2, so that the assembly effect of the mounting pipe 34 is further improved, and the convenience of using the bolt 312 is also improved.

[0041] Reference Figure 1 - Fig. 9 As shown, in this embodiment: the surface of the assembly rod 38 is located at the position of the fixed groove 39 and is provided with a plurality of evenly distributed reinforcement grooves 316, the inner wall of the reinforcement groove 316 is clamped with a reinforcement block 317, and the reinforcement block 317 is fixedly connected to the surface of the fixing rod 310. Through the clamping arrangement of the reinforcement groove 316 and the reinforcement block 317, the fixing rod 310 on one side of the filter screen 311 is installed more stably and firmly, and is not easy to deflect, so as to better intercept impurities passing through the installation pipe 34, further better ensure the purity of the catalytic gas, and improve the catalyst The use effect is also further improved, and the quality of the manufactured gas product is further improved. A protective ring 315 is fixedly connected to the surface of one side of the filter screen 311, and the protective ring 315 is a rubber ring. The protective ring 315 is slidably inserted with the inner wall of the mounting tube 34. Through the setting of the protective ring 315, when the filter screen 311 is taken out, the protective ring 315 can cause sliding friction with the inner wall of the mounting tube 34, thereby better removing impurities adhering to the inner wall of the mounting tube 34, and further improving the convenience of using the auxiliary device 3, which is convenient for replacing and using between mounting tubes 34.

[0042] Reference Figure 1 - Fig. 9As shown, in this embodiment: the sealing device 4 includes two mounting plates 41, the two mounting plates 41 are respectively fixedly connected to the arc surface of the feed pipe 2 and are located on both sides of the mounting tube 34, the surfaces of the two mounting plates 41 are respectively slidably connected with fixing rings 42, the inner wall of the fixing ring 42 is clamped with a sealing gasket, which is a rubber gasket, and the sealing gasket is sleeved on the arc surface of the mounting tube 34, the arc surface of the fixing ring 42 is provided with a slide groove 43, the inner wall of the slide groove 43 is slidably connected with the surface of the mounting plate 41, the surface of the fixing ring 42 is fixedly connected with a mounting frame 45, the surface of the mounting frame 45 is threadedly connected with a screw 46, one end of the screw 46 is rotatably connected with a reinforcement ring 47, when the auxiliary is installed on the feed pipe 2, first, Two sealing rings 44 are sleeved on the arc surfaces on both sides of the mounting tube 34, so that the sealing rings 44 are located in the gap between the mounting tube 34 and the feed pipe 2, and then the fixing ring 42 is slid to make the slide groove 43 on the fixing ring 42 slide on the mounting plate 41 until the inner wall of the fixing ring 42 contacts the arc surface of the sealing ring 44, and then the screw 46 on the mounting frame 45 is rotated to make the reinforcement ring 47 move under the drive of the screw 46 until it contacts and squeezes on the arc surface of the sealing ring 44. At this time, when the mounting tube 34 of the auxiliary device 3 is replaced and installed, the sealing of the feed pipe 2 can be better guaranteed, and the catalytic material gas is not easy to leak, thereby ensuring the efficient reaction of hexafluoropropylene and the catalyst, and further improving the production and use effect of the device.

[0043] Reference Figure 1 - Fig. 9 As shown, in this embodiment: the inner walls of the mounting frame 45 are respectively penetrated by the side close to each other to form a limiting groove 49, the inner wall of the limiting groove 49 is slidably connected to the limiting block 48, and the limiting block 48 is fixedly connected to the arc surface of the reinforcing ring 47. Through the sliding arrangement of the limiting block 48 and the limiting groove 49, the reinforcing ring 47 can move more stably under the drive of the screw 46, and is not easy to deflect, so that it can be more stably and firmly contacted and squeezed on the arc surface of the sealing ring 44, thereby ensuring the sealing performance of the sealing ring 44 on the feed pipe 2, and better transporting the catalytic material. One end surface of the bolt 312 is fixedly connected to the positioning plate 410 A positioning rod 412 is inserted through the surface of the positioning plate 410, and a positioning groove 411 is opened on the surface of the mounting frame 45. The positioning rod 412 is inserted into the inner wall of the positioning groove 411. Through the arrangement of the positioning rod 412 and the positioning groove 411, when the reinforcement ring 47 is stably contacted and squeezed on the sealing ring 44, the positioning rod 412 is inserted along the positioning plate 410 until the positioning rod 412 is inserted into the positioning groove 411 on the mounting frame 45. At this time, the screw 46 can be better maintained stable and is not prone to rotation loosening, thereby ensuring the sealing effect of the conveying pipe 2 and further enhancing the functional use of the sealing device 4.

[0044] Reference Figure 1 and Fig.10As shown, in this embodiment: the perfluorohexanone preparation system includes the perfluoro-2-methyl-2-pentene synthesis device according to any one of claims 1 to 9, and includes a perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and a perfluorohexanone synthesis device; the perfluoro-2-methyl-2-pentene synthesis device, the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and the perfluorohexanone synthesis device are connected in sequence; the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device is the same as the perfluorohexanone synthesis device, respectively, wherein the vertical tubular dynamic reactor 6 in the perfluoro-2-methyl-2-pentene synthesis device is replaced by a dynamic tubular reactor 9.

[0045] Working principle: When the device is used to produce gas, the auxiliary device 3 is first used to maintain the feed pipe 2, and the operation of the device is first suspended. Then, the filter screen 311 is installed in the inner wall of the installation tube 34, so that the fixing rod 310 fixedly connected to one side of the filter screen 311 is clamped in the fixing groove 39 on the assembly rod 38, and then the installation tube 34 is rotated to make the rotating ring 32 on the surface of the installation tube 34 located on the side of the connecting plate 33 rotate on the rotating rod 31 until the block 37 at one end of the spring 36 is pressed, and the installation tube is waiting to be installed. When the mounting tube 34 is aligned with the feed pipe 2, the block 37 is released. The block 37 slides in the mounting groove 35 on the arc surface of the mounting tube 34 under the action of the spring 36 until the block 37 is inserted into the groove on the surface of the feed pipe 2. At this time, the bolt 312 is threadedly connected to one side of the rotating rod 31 until the bolt 312 is threadedly connected to the surface of the connecting plate 33. Then, the auxiliary device 3 is fixed with the sealing device 4. First, two sealing rings 44 are sleeved on the arc surfaces on both sides of the mounting tube 34 so that the sealing rings 44 are located between the mounting tube 34 and the feed pipe. 2, and then slide the fixing ring 42, so that the slide groove 43 on the fixing ring 42 slides on the mounting plate 41 until the inner wall of the fixing ring 42 contacts the arc surface of the sealing ring 44, and then rotate the screw 46 on the mounting frame 45, so that the reinforcement ring 47 moves under the drive of the screw 46 until it contacts and squeezes on the arc surface of the sealing ring 44, and then start the reactor 1 to make the catalyst react inside the reactor 1, and enter the vertical tubular dynamic reactor 6 along the feed pipe 2, and at the same time, the hexafluoropropylene raw material in the raw material tank 5 will also enter at the same time, and then react in the vertical tubular dynamic reactor 6, and then enter the heat exchanger 7 for further processing, and the final finished raw material will enter the storage tank 8 for storage. At this time, when the device is used to make gas, the feed pipe 2 can be maintained more conveniently and efficiently, so that the inner wall of the feed pipe 2 is not easy to be excessively attached with catalyst impurities, and the purity of the catalytic gas is further improved, and it can be more efficiently mixed with hexafluoropropylene for reaction, thereby improving the quality of the finished gas, and further improving the working efficiency and use effect of the device.

Claims

1. A perfluoro-2-methyl-2-pentene synthesis device, comprising a reaction kettle (1) and a raw material tank (5), characterized in that: A feed pipe (2) is fixedly connected to the surface of one side of the reactor (1); the other end of the feed pipe (2) and the surface of one side of the raw material tank (5) are fixedly connected to a vertical tubular dynamic reactor (6); the other end of the vertical tubular dynamic reactor (6) is fixedly connected to a heat exchanger (7); the other side of the heat exchanger (7) is fixedly connected to a storage tank (8); an auxiliary device (3) is arranged on the surface of the feed pipe (2); the auxiliary device (3) enables the feed pipe (2) to filter and remove impurities contained in the catalytic material when in use, thereby improving the reaction effect of the catalytic material and hexafluoropropylene and improving the quality of the finished product; the arc surface of the feed pipe (2) is provided with sealing devices (4) on both sides of the auxiliary device (3); the sealing devices (4) enable the installation of the auxiliary device (3) to be more stable and firm, and ensure the sealing of the feed pipe (2) in use, thereby making the reaction preparation more efficient.

2. A perfluoro-2-methyl-2-pentene synthesis device according to claim 1, characterized in that: The auxiliary device (3) comprises a rotating rod (31), the rotating rod (31) is fixedly connected to the arc surface of the feed pipe (2), a rotating ring (32) is rotatably connected to the arc surface of the rotating rod (31), a plurality of evenly distributed connecting plates (33) are fixedly connected to the arc surface of the rotating ring (32), a mounting tube (34) is fixedly connected to one side surface of the connecting plate (33), two mounting grooves (35) are respectively provided on the two side surfaces of the mounting tube (34), the inner walls of the two mounting grooves (35) are respectively fixedly connected to springs (36), the other end of the spring (36) is fixedly connected to a clamping block (37), the clamping block (37) and the mounting groove (35) are fixedly connected to each other. The inner wall of the mounting tube (34) is slidably connected, two grooves are respectively provided on the sides of the feed pipe (2) located at the installation position of the mounting tube (34) and close to each other, and the sliding blocks on the inner walls of the two mounting grooves (35) are respectively plugged into the inner walls of the two grooves, and the inner wall of the mounting tube (34) is fixedly connected with an assembly rod (38), and a fixing groove (39) is provided on one side surface of the assembly rod (38), and a fixing rod (310) is clamped on the inner wall of the fixing groove (39), and one end of the fixing rod (310) is fixedly connected with a filter screen (311), and a bolt (312) is threadedly connected through the surface of the rotating rod (31), and the bolt (312) is threadedly connected to the surface of one side of the connecting plate (33).

3. A perfluoro-2-methyl-2-pentene synthesis device according to claim 2, characterized in that: A bearing (314) is fixedly connected to the arc surface of the rotating rod (31), an inner ring of the bearing (314) is fixedly connected to the arc surface of the rotating rod (31), and an outer ring of the bearing (314) is fixedly connected to the inner wall of the rotating ring (32).

4. A perfluoro-2-methyl-2-pentene synthesis device according to claim 2, characterized in that: An operating block (313) is fixedly connected to one side surface of the bolt (312), and a surface of the operating block (313) is provided with a plurality of evenly distributed anti-slip protrusions.

5. A perfluoro-2-methyl-2-pentene synthesis device according to claim 2, characterized in that: A plurality of evenly distributed reinforcement grooves (316) are provided on the surface of the assembly rod (38) at the position of the fixing groove (39), and a reinforcement block (317) is clamped on the inner wall of the reinforcement groove (316), and the reinforcement block (317) is fixedly connected to the surface of the fixing rod (310).

6. A perfluoro-2-methyl-2-pentene synthesis device according to claim 2, characterized in that: A protective ring (315) is fixedly connected to one side surface of the filter screen (311), and the protective ring (315) is a rubber ring. The protective ring (315) is slidably inserted into the inner wall of the installation tube (34).

7. A perfluoro-2-methyl-2-pentene synthesis device according to claim 2, characterized in that: The sealing device (4) comprises two mounting plates (41), the two mounting plates (41) are respectively fixedly connected to the arc surface of the feed pipe (2) and are located on both sides of the mounting pipe (34), the surfaces of the two mounting plates (41) are respectively slidably connected with fixing rings (42), the inner wall of the fixing ring (42) is clamped with a sealing gasket, the sealing gasket is a rubber gasket, and the sealing gasket is sleeved on the arc surface of the mounting pipe (34), the arc surface of the fixing ring (42) is provided with a sliding groove (43), the inner wall of the sliding groove (43) is slidably connected to the surface of the mounting plate (41), the surface of the fixing ring (42) is fixedly connected with a mounting frame (45), the surface of the mounting frame (45) is threadedly connected with a screw rod (46), and one end of the screw rod (46) is rotatably connected with a reinforcement ring (47).

8. A perfluoro-2-methyl-2-pentene synthesis device according to claim 7, characterized in that: Limiting grooves (49) are respectively formed through the inner walls of the mounting frame (45) on the sides close to each other, the inner walls of the limiting grooves (49) are slidably connected to limiting blocks (48), and the limiting blocks (48) are fixedly connected to the arc surface of the reinforcement ring (47).

9. A perfluoro-2-methyl-2-pentene synthesis device according to claim 7, characterized in that: One end surface of the bolt (312) is fixedly connected to a positioning plate (410), a positioning rod (412) is inserted through the surface of the positioning plate (410), a positioning groove (411) is formed on the surface of the mounting frame (45), and the positioning rod (412) is inserted into the inner wall of the positioning groove (411).

10. A system for preparing perfluorohexanone, characterized in that: The invention relates to a perfluoro-2-methyl-2-pentene synthesis device comprising the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and a perfluorohexanone synthesis device; the perfluoro-2-methyl-2-pentene synthesis device, the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device and the perfluorohexanone synthesis device are connected in sequence; the perfluoro-2,3-epoxy-2-methyl-pentane synthesis device is the same as the perfluorohexanone synthesis device, except that the vertical tubular dynamic reactor (6) in the perfluoro-2-methyl-2-pentene synthesis device is replaced by a dynamic tubular reactor (9).

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