Quantitative gas mixing device for preparing octafluoropropane

Abstract

The invention belongs to the technical field of octafluoropropane preparation, particularly relates to a gas quantitative mixing device for octafluoropropane preparation, and aims to solve the problems that high-density heptafluoropropane gas tends to settle at the bottom of a reaction zone and low-density fluorine gas and nitrogen gas float up to the top, so that even under the condition of forced stirring, the gas cannot be separated from the bottom of the reaction zone. In order to solve the problems that the mixing efficiency is low and the synthetic reaction efficiency of the device is reduced due to the fact that the separation trend of gas generated by density difference is far greater than that of hybrid power, the following scheme is provided: the device comprises a tool bracket, a mixing tank I is arranged on the tool bracket, and a mixing tank II is hermetically connected to an opening of the mixing tank I. The gas quantitative mixing device for preparing octafluoropropane has the effects that through layered dynamic gas inlet, reverse convection is forcibly formed, density layering is thoroughly broken, meanwhile, gas is dynamically dispersed, gas flow mass transfer is enhanced, gas disturbance is expanded, and therefore the synthetic reaction efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of octafluoropropane preparation, and in particular to a gas quantitative mixing device for octafluoropropane preparation. BACKGROUND

[0002] Octafluoropropane has important application value in the fields of semiconductor etching, low-temperature refrigeration and medical propellant, as a high-performance special gas. One of mainstream preparation processes of the octafluoropropane is to realize the catalytic fluorination reaction of heptafluoropropane and fluorine gas, which is usually carried out in a high-temperature and high-pressure reactor, and nitrogen gas needs to be introduced as a diluent to control the reaction rate, relieve the intense heat release and inhibit the side reaction.

[0003] During the preparation of octafluoropropane, heptafluoropropane needs to be mixed with fluorine gas and nitrogen gas uniformly to react. Since the gas densities of heptafluoropropane, fluorine gas and nitrogen gas are different, in the conventional stirring of the existing mixing device, the high-density heptafluoropropane gas tends to settle at the bottom of the reaction zone, while the low-density fluorine gas and nitrogen gas float to the top. Even under the condition of forced stirring, the separation trend of the gases due to the density difference is much greater than the mixing power, thereby causing low mixing efficiency and reducing the synthesis reaction efficiency of the device. SUMMARY

[0004] The application discloses a gas quantitative mixing device for octafluoropropane preparation, and aims to solve the technical problem that, in the background art, the high-density heptafluoropropane gas tends to settle at the bottom of the reaction zone, while the low-density fluorine gas and nitrogen gas float to the top. Even under the condition of forced stirring, the separation trend of the gases due to the density difference is much greater than the mixing power, thereby causing low mixing efficiency and reducing the synthesis reaction efficiency of the device.

[0005] The gas quantitative mixing device for octafluoropropane preparation comprises a tool support, a mixing tank one is arranged on the tool support, a mixing tank two is sealingly connected to the opening of the mixing tank one, a flow guide module is arranged in the mixing tank one, and the flow guide module comprises a horizontal spiral air inlet pipe which is located at the inner side top of the mixing tank two. A mounting round hole is arranged at the bottom side of the mixing tank one, an air inlet frame is fixedly connected to the inside of the mounting round hole, a mounting round hole is arranged at one side of the air inlet frame, a hollow rotating pipe is connected to the inside of the mounting round hole through a bearing, a plurality of air inlet notches are annularly arranged at the outside of the hollow rotating pipe, a rotating support rod is fixedly connected to one end of the hollow rotating pipe, two sliding grooves are symmetrically arranged at one side of the rotating support rod, two hollow horizontal sliding seats are slidingly connected to the inside of the two sliding grooves, two hollow mounting rods are fixedly connected to one side of the two hollow horizontal sliding seats, a plurality of hollow corrugated plates are arranged at the outside of the two hollow mounting rods, and the plurality of hollow corrugated plates are arranged in a spiral manner.

[0006] In an preferred embodiment, the hollow rotating pipe is fixedly connected with a spiral blade outside, and the spiral blade is located inside the air inlet frame, two oblique openings are symmetrically arranged outside the hollow rotating pipe, and an oblique air drum is fixedly connected inside each oblique opening.

[0007] In an preferred embodiment, two hollow circular frames are provided with a transmission opening on one side, and a metal telescopic pipe is fixedly connected inside each transmission opening, one end of the metal telescopic pipe is fixedly connected inside the hollow horizontal sliding seat, and two circular holes are arranged on the two sides of each hollow circular frame, and the same self-rotating cylinder is connected inside the opposite two circular holes through a bearing.

[0008] In an preferred embodiment, two self-rotating cylinders are fixedly connected with a flow fan plate outside, and the flow fan plate is located inside the hollow circular frame, a circular hole two is arranged on one side of each hollow horizontal sliding seat, and a rotating shaft is connected inside each circular hole two through a bearing, one end of each self-rotating cylinder is fixedly connected with a linkage cam, a circular hole three is arranged on one side of each linkage cam, and a rotating shaft is connected inside each circular hole three through a bearing, and the same horizontal push-pull rod is movably connected outside the rotating shaft and the rotating shaft on the same side.

[0009] In an preferred embodiment, the rotating support rod is fixedly connected with a support plate at equal distances on the two sides, a circular hole four is arranged on one side of each support plate, the same linkage circular rod is connected inside the opposite two circular holes four through a bearing, and the same belt one is movably connected outside the plurality of belt wheels one on the same side.

[0010] In an preferred embodiment, the rotating support rod is fixedly connected with a protection frame at equal distances on the two sides, a circular hole five is arranged on the two sides of each protection frame, the same rotating shaft is connected inside the opposite two circular holes five through a bearing, and the same fan blade is fixedly connected outside the plurality of rotating shafts, the fan blade is located inside the protection frame, the same belt two is movably connected outside the plurality of belt wheels two on the same side.

[0011] In an preferred embodiment, the mixing tank one is provided with a mixing module inside, and the mixing module comprises a support frame plate, a mounting circular opening is arranged on one side of the support frame plate, a mounting circular pipe is fixedly connected inside the mounting circular opening, a limiting circular frame one is fixedly connected outside the mounting circular pipe, a cross rotating rod one is connected with the limiting circular frame one through a bearing, and positive stirring fan blades are annularly arranged on one side of the cross rotating rod one.

[0012] In a preferred scheme, one side of the hollow rotating pipe is fixedly connected with a linkage cylinder, the linkage cylinder is located inside the mounting cylinder, one end of the linkage cylinder is fixedly connected with a linkage support, one side of the linkage support is fixedly connected with one side of a cross rotating rod one, one side of the cross rotating rod one is fixedly connected with a bevel gear one.

[0013] In a preferred scheme, the outside of the mounting cylinder is fixedly connected with a limiting circular frame two, the outside of the limiting circular frame two is connected with a cross rotating rod two through a bearing, the cross rotating rod two is annularly distributed with reverse stirring blades on one side, the cross rotating rod two is fixedly connected with a bevel gear three on one side, the outside of the mounting cylinder is fixedly connected with a tool block, the tool block is connected with a bevel gear two on both sides through a bearing, the bevel gear two is engaged with the bevel gear one, and the bevel gear two is engaged with the bevel gear three.

[0014] In a preferred scheme, one side of the tool support is fixedly connected with a flow control valve two, the gas outlet end of the flow control valve two is fixedly connected with a fluorine gas inlet pipe, one end of the fluorine gas inlet pipe is fixedly connected with one end of an inlet frame, the mixing tank two is provided with a mounting opening on one side, the inside of the mounting opening is fixedly connected with an inlet elbow, one end of the horizontal spiral inlet pipe is fixedly connected to the inside of the inlet elbow, the mixing tank two is fixedly connected with two flow control valves one on one side, the gas outlet ends of the two flow control valves one are fixedly connected with a heptafluoropropane inlet pipe and a nitrogen gas inlet pipe respectively, the mixing tank one is provided with a collection opening on one side, the inside of the collection opening is fixedly connected with a reactant discharge pipe, and the outside of the mixing tank one and the mixing tank two is provided with an electric heating annular plate.

[0015] As can be seen from the above, the gas quantitative mixing device for preparing octafluoropropane has the beneficial effects that the device can form reverse convection by layered dynamic gas inlet, completely break the density stratification, dynamically disperse gas, enhance gas flow mass transfer, and expand gas disturbance, so that the synthesis reaction efficiency of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The whole structure schematic diagram of the present application is provided; Figure 2 The inside structure schematic diagram of the mixing tank of the present application is provided; Figure 3 The structure schematic diagram of the flow guide module of the present application is provided; Figure 4 The structure schematic diagram of the protection frame of the present application is provided; Figure 5 The partial structure schematic diagram of the flow guide module of the present application is provided; Figure 6 The structure schematic diagram of the hollow circular frame of the present application is provided; Figure 7The schematic diagram of the mixed module structure provided by the application is shown in the figure. Figure 8 The schematic diagram of the mixed module structure provided by the application is shown in the figure.

[0017] In the figure: 1, tool support; 2, mixing tank one; 3, mixing tank two; 4, electric heating annular plate; 5, flow guide module; 501, horizontal spiral air inlet pipe; 502, air inlet frame; 503, hollow rotating pipe; 504, spiral blade; 505, rotating support rod; 506, hollow horizontal sliding seat; 507, hollow mounting rod; 508, hollow corrugated plate; 509, hollow circular frame; 510, self-rotating cylinder; 511, flow fan plate; 512, obliquely placed air pipe; 513, metal telescopic pipe; 514, linkage cam; 515, rotating shaft; 516, rotating shaft; 517, horizontal push-pull rod; 518, belt one; 519, support plate; 520, linkage round rod; 521, belt two; 522, rotating shaft; 523, fan plate; 524, protective frame; 6, mixed module; 601, support frame plate; 602, mounting circular pipe; 603, linkage cylinder; 604, limiting circular frame one; 605, cross rotating rod one; 606, conical gear one; 607, linkage support; 608, positive stirring fan blade; 609, tool block; 610, conical gear two; 611, limiting circular frame two; 612, cross rotating rod two; 613, conical gear three; 614, reverse stirring fan blade; 7, air inlet elbow; 8, nitrogen gas inlet pipe; 9, heptafluoropropane inlet pipe; 10, flow control valve one; 11, fluorine gas inlet pipe; 12, flow control valve two; 13, reactant discharge pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0019] The gas quantitative mixing device for preparing octafluoropropane disclosed by the application is mainly applied to the scene that the mixing efficiency is low and the synthesis reaction efficiency of the device is reduced due to the following reasons: the high-density heptafluoropropane gas tends to settle at the bottom of the reaction zone, and the low-density fluorine gas and nitrogen gas float to the top, even under the condition of forced stirring, the separation tendency of the gas due to the density difference is much greater than the mixing power, thereby causing the low mixing efficiency and reducing the synthesis reaction efficiency of the device.

[0020] Reference Figures 1-6The utility model provides a gas quantitative mixing device for octafluoropropane preparation, including tool support 1, be provided with mixing jar one 2 on tool support 1, and mixing jar one 2 is sealedly connected with mixing jar two 3 at the opening, the inside of mixing jar one 2 is provided with flow guide module 5, and flow guide module 5 includes horizontal spiral air inlet pipe 501, horizontal spiral air inlet pipe 501 is located in the inside top of mixing jar two 3, and the bottom side of mixing jar one 2 is provided with installation round mouth, and the inside of installation round mouth is fixedly connected with air inlet frame 502, one side of air inlet frame 502 is provided with installation round hole, and the inside of installation round hole is connected with hollow rotating tube 503 through bearing, the outside of hollow rotating tube 503 is annularly provided with air inlet groove, one end of hollow rotating tube 503 is fixedly connected with rotating support rod 505, and two sliding grooves are symmetrically set up on one side of rotating support rod 505, and two hollow horizontal sliding seats 506 are slidably connected in the inside of two sliding grooves, and two hollow mounting rods 507 are fixedly connected on one side of two hollow horizontal sliding seats 506, and a plurality of hollow corrugated plates 508 are arranged on the outside of two hollow mounting rods 507, and a plurality of hollow corrugated plates 508 are arranged in spiral.

[0021] With reference to Figures 1-6 In a preferred embodiment, the outside of hollow rotating tube 503 is fixedly connected with spiral blade 504, and spiral blade 504 is located in the inside of air inlet frame 502, the outside of hollow rotating tube 503 is symmetrically provided with two inclined mouths, and two inclined mouths are fixedly connected with inclined air drum 512 in the inside, two installation round mouths are symmetrically set up on one side of rotating support rod 505, two hollow round frames 509 are fixedly connected in the inside of two installation round mouths, and one end of inclined air drum 512 is located in the inside of hollow round frame 509.

[0022] With reference to Figures 1-6 In a preferred embodiment, one side of two hollow round frames 509 is provided with transmission port, and two transmission ports are fixedly connected with metal telescopic pipe 513 in the inside, one end of metal telescopic pipe 513 is fixedly connected in the inside of hollow horizontal sliding seat 506, and two sides of two hollow round frames 509 are provided with round hole one, and the inside of opposite two round hole one is connected with same rotation cylinder 510 through bearing.

[0023] With reference to Figures 1-6In an optimal embodiment, the outer part of the two rotating cylinders 510 is fixedly connected with the flow fan plate 511, the flow fan plate 511 is located inside the hollow circular frame 509, the two hollow horizontal sliding seats 506 are provided with two circular holes, the two circular holes are fixedly connected with the rotating shaft 516 through bearings, one end of the two rotating cylinders 510 is fixedly connected with the linkage cam 514, the linkage cam 514 is provided with a circular hole, the circular hole is fixedly connected with the rotating shaft 515 through bearings, and the rotating shaft 515 and the rotating shaft 516 are fixedly connected with the horizontal push-pull rod 517.

[0024] With reference to Figures 1-6 In an optimal embodiment, the two sides of the rotating support rod 505 are fixedly connected with the support plate 519, the support plate 519 is provided with a circular hole, the two opposite circular holes are fixedly connected with the linkage circular rod 520 through bearings, and one end of the rotating cylinder 510 is fixedly connected with the belt pulley 1.

[0025] With reference to Figures 1-6 In an optimal embodiment, the two sides of the rotating support rod 505 are fixedly connected with the protection frame 524, the protection frame 524 is provided with a circular hole, the two opposite circular holes are fixedly connected with the rotating shaft 522 through bearings, the rotating shaft 522 is fixedly connected with the fan blade 523, the fan blade 523 is located inside the protection frame 524, one end of the rotating shaft 522 and the linkage circular rod 520 are fixedly connected with the belt pulley 2, and the two belt pulleys 2 are fixedly connected with the belt 521.

[0026] In a specific application scenario, during preparation, heptafluoro-propane and nitrogen are accurately metered through flow control valve 10, enter mixing tank 2 through horizontal spiral inlet pipe 501, the spiral path prolongs the gas residence time and expands the diffusion area, so that the high-density gas is uniformly settled, fluorine gas is injected into inlet frame 502 through fluorine gas inlet pipe 11 controlled by flow control valve 2, the fluorine gas drives spiral blade 504 to rotate hollow rotating pipe 503, hollow rotating pipe 503 drives rotating support rod 505, and drives hollow corrugated plate 508 arranged in a spiral to revolve, fluorine gas enters hollow circular frame 509 through obliquely arranged air pipe 512, impacts flow fan plate 511, at this time, fluorine gas is injected through micro-holes through metal expansion pipe 513, and fluorine gas flow impacts flow fan plate 511 while driving revolving cylinder 510 to rotate, so that linkage cam 514 pushes horizontal push-pull rod 517 to drive hollow horizontal sliding seat 506 to reciprocate in a sliding groove, so that hollow corrugated plate 508 periodically swings radially while revolving, expands the gas disturbance range, at the same time, revolving cylinder 510 drives linkage round rod 520 to rotate through belt 1 518, and fan blade 523 on rotating shaft 522 is rotated through belt 2 521 to form directional airflow, so that fluorine gas is pressurized to form rotating airflow that diffuses upward to offset the floating trend, and guide module 5 forms forced reverse convection through layered dynamic gas inlet, completely breaks the density stratification, dynamically disperses the gas, enhances the gas flow mass transfer, expands the gas disturbance, and thus improves the synthesis reaction efficiency of the device.

[0027] With reference to Figure 1 , Figure 2 , Figure 7 and Figure 8 , in a preferred embodiment, the inside of mixing tank 1 is provided with mixing module 6, and mixing module 6 comprises support frame plate 601, one side of support frame plate 601 is provided with mounting circular port, the inside of mounting circular port is fixedly connected with mounting circular pipe 602, the outside of mounting circular pipe 602 is fixedly connected with limiting circular frame 1 604, limiting circular frame 1 604 is connected with cross-shaped rotating rod 1 605 through bearings on the outside, and one side of cross-shaped rotating rod 1 605 is annularly distributed with positive stirring fan blade 608.

[0028] With reference to Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 , in a preferred embodiment, one side of hollow rotating pipe 503 is fixedly connected with linkage cylinder 603, linkage cylinder 603 is located in the inside of mounting circular pipe 602, one end of linkage cylinder 603 is fixedly connected with linkage support 607, one side of linkage support 607 is fixedly connected with one side of cross-shaped rotating rod 1 605, and one side of cross-shaped rotating rod 1 605 is fixedly connected with conical gear 1 606.

[0029] With reference toFigure 1 、 Figure 7 and Figure 8 In a preferred embodiment, the outer part of the mounting circular tube 602 is fixedly connected with a limiting circular frame two 611, and the outer part of the limiting circular frame two 611 is connected with a cross rotating rod two 612 through a bearing, one side of the cross rotating rod two 612 is annularly distributed with reverse stirring blades 614, one side of the cross rotating rod two 612 is fixedly connected with a bevel gear three 613, the outer part of the mounting circular tube 602 is fixedly connected with a tool block 609, both sides of the tool block 609 are connected with a bevel gear two 610 through a bearing, the bevel gear two 610 is engaged with the bevel gear one 606, and the bevel gear two 610 is engaged with the bevel gear three 613.

[0030] In a specific application scenario, when the gas is quantitatively guided, the hollow rotating tube 503 drives the bevel gear one 606 through the linkage cylinder 603, reverses the bevel gear two 610 to drive the bevel gear three 613 to rotate in the opposite direction, so that the forward stirring blades 608 rotate clockwise at high speed, push the gas to move downward, and the reverse stirring blades 614 rotate counterclockwise to form an upward vortex at the bottom of the tank, thereby generating a high-intensity shear vortex, so that the collision frequency of gas molecules is improved, thereby shortening the gas mixing time.

[0031] Referring to Figure 1 and Figure 2 In a preferred embodiment, one side of the tool support 1 is fixedly connected with a flow control valve two 12, and the gas outlet end of the flow control valve two 12 is fixedly connected with a fluorine gas inlet pipe 11, one end of the fluorine gas inlet pipe 11 is fixedly connected with one end of the gas inlet frame 502, the mixing tank two 3 is provided with a mounting opening on one side, the mounting opening is fixedly connected with a gas inlet elbow 7 inside, one end of the horizontal spiral gas inlet pipe 501 is fixedly connected to the inside of the gas inlet elbow 7, the mixing tank two 3 is fixedly connected with two flow control valves one 10 on one side, the gas outlet ends of the two flow control valves one 10 are respectively fixedly connected with a heptafluoropropane inlet pipe 9 and a nitrogen gas inlet pipe 8, the mixing tank one 2 is provided with a collection opening on one side, the inside of the collection opening is fixedly connected with a reactant discharge pipe 13, and the outer parts of the mixing tank one 2 and the mixing tank two 3 are both provided with an electric heating annular plate 4.

[0032] Working principle: when preparing, seven fluorine propane and nitrogen are accurately metered through flow control valve one 10, enter mixing tank two 3 through horizontal spiral inlet pipe 501, the spiral path prolongs the gas residence time and expands the diffusion area, so that the high-density gas is uniformly settled, fluorine gas is injected into the inlet frame 502 through fluorine gas inlet pipe 11 by flow control valve two 12, the fluorine gas drives the helical blade 504 to rotate the hollow rotating pipe 503, the hollow rotating pipe 503 drives the rotating support rod 505, drives the helical arrangement of hollow corrugated plate 508, fluorine gas enters the hollow circular frame 509 through the inclined air pipe 512, impacts the flow fan plate 511, at this time, through the metal expansion pipe 513 to the hollow corrugated plate 508, fluorine gas is sprayed from the micro hole, the fluorine gas flow impacts the flow fan plate 511 and drives the rotation of the cylindrical 510, so that the linkage cam 514 pushes the horizontal push-pull rod 517 to drive the hollow horizontal sliding seat 506 to reciprocate in the sliding groove, so that the hollow corrugated plate 508 rotates periodically while radially swinging, expanding the gas disturbance range, at the same time, through the rotating cylindrical 510, the linkage cylindrical 520 is driven to rotate through the belt one 518, the fan blade 523 on the shaft 522 is rotated through the belt two 521, forming directional airflow, so that the fluorine gas is pressurized to form rotating airflow upward diffusion, offsetting the upward trend. When the gas is quantitatively guided, the hollow rotating pipe 503 drives the bevel gear one 606 to rotate in the opposite direction through the linkage cylindrical 603, the bevel gear two 610 changes direction to drive the bevel gear three 613 to rotate in the opposite direction, so that the positive stirring fan blade 608 rotates clockwise at high speed, pushing the gas downward, the reverse stirring fan blade 614 rotates counterclockwise, forming an upward vortex at the bottom of the tank, thereby generating a high-strength shear vortex.

[0033] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A gas dosing mixing device for octafluoropropane preparation, comprising a tool support (1), characterized in that, The tool support (1) is provided with a mixing tank one (2), and the mixing tank one (2) is sealingly connected with a mixing tank two (3) at an opening thereof, the inside of the mixing tank one (2) is provided with a flow guide module (5), and the flow guide module (5) comprises a horizontal spiral air inlet pipe (501) located at the inside top of the mixing tank two (3), a mounting circular opening is formed in one side of the bottom of the mixing tank one (2), and the inside of the mounting circular opening is fixedly connected with an air inlet frame (502), a mounting circular hole is formed in one side of the air inlet frame (502), the inside of the mounting circular hole is connected with a hollow rotating pipe (503) through a bearing, a gas inlet groove is formed in the outside of the hollow rotating pipe (503) in an annular shape, one end of the hollow rotating pipe (503) is fixedly connected with a rotating support rod (505), two sliding grooves are symmetrically formed in one side of the rotating support rod (505), the inside of the two sliding grooves is slidingly connected with a hollow horizontal sliding seat (506), one side of the two hollow horizontal sliding seats (506) is fixedly connected with a hollow mounting rod (507), the outside of the two hollow mounting rods (507) is provided with a plurality of hollow corrugated plates (508), and the plurality of hollow corrugated plates (508) are arranged in a spiral manner; The outside of the hollow rotating pipe (503) is fixedly connected with a spiral blade (504), and the spiral blade (504) is located in the inside of the air inlet frame (502), the outside of the hollow rotating pipe (503) is symmetrically provided with two inclined openings, the inside of the two inclined openings is fixedly connected with an inclined air blowing pipe (512), one side of the rotating support rod (505) is symmetrically provided with two mounting circular openings, the inside of the two mounting circular openings is fixedly connected with a hollow circular frame (509), and one end of the inclined air blowing pipe (512) is located in the inside of the hollow circular frame (509).

2. The gas proportioner for preparing octafluoropropane according to claim 1, wherein One side of the two hollow circular frames (509) is provided with a transmission opening, and the inside of the two transmission openings is fixedly connected with a metal telescopic pipe (513), one end of the metal telescopic pipe (513) is fixedly connected to the inside of the hollow horizontal sliding seat (506), and the two sides of the two hollow circular frames (509) are provided with a circular hole one, the inside of the two opposite circular hole ones is connected with the same rotating cylinder (510) through a bearing.

3. The gas proportioner for preparing octafluoropropane according to claim 2, wherein The outside of the two rotating cylinders (510) is fixedly connected with a flow fan plate (511), and the flow fan plate (511) is located in the inside of the hollow circular frame (509), one side of the two hollow horizontal sliding seats (506) is provided with a circular hole two, the inside of the two circular hole twos is connected with a rotating shaft (516) through a bearing, one end of the two rotating cylinders (510) is fixedly connected with a linkage cam (514), one side of the two linkage cams (514) is provided with a circular hole three, the inside of the two circular hole threes is connected with a rotating shaft (515) through a bearing, and the outside of the rotating shaft (515) and the rotating shaft (516) located on the same side is movably connected with the same horizontal push-pull rod (517).

4. The gas proportioner for preparing octafluoropropane according to claim 3, wherein Both sides of the rotating support rod (505) are fixedly connected with support plates (519) at equal distances, one side of each of the plurality of support plates (519) is provided with a circular hole four, the interiors of the opposite two circular hole fours are connected with the same linkage round rod (520) through bearings, both ends of each of the two linkage round rods (520) located at the same side are fixedly connected with a belt pulley one, the exteriors of the plurality of belt pulley ones located at the same side are slidably connected with the same belt one (518).

5. The gas proportioner for preparing octafluoropropane according to claim 4, wherein Both sides of the rotating support rod (505) are fixedly connected with protection frames (524) at equal distances, both sides of each of the plurality of protection frames (524) are provided with a circular hole five, the interiors of the opposite two circular hole fives are connected with the same rotating shaft (522) through bearings, the exteriors of the plurality of rotating shafts (522) are fixedly connected with leaf plates (523), the leaf plates (523) are located in the interiors of the protection frames (524), both ends of each of the plurality of rotating shafts (522) located at the same side are fixedly connected with a belt pulley two, the exteriors of the plurality of belt pulley twos are slidably connected with the same belt two (521).

6. The gas proportioner for preparing octafluoropropane according to claim 5, wherein The interior of the mixing tank one (2) is provided with a mixing module (6), the mixing module (6) comprises a support frame plate (601), one side of the support frame plate (601) is provided with a mounting circular opening, the interior of the mounting circular opening is fixedly connected with a mounting circular tube (602), the exterior of the mounting circular tube (602) is fixedly connected with a limiting circular frame one (604), the exterior of the limiting circular frame one (604) is connected with a cross-shaped rotating rod one (605) through a bearing, one side of the cross-shaped rotating rod one (605) is annularly distributed with positive stirring vanes (608).

7. The gas proportioner for preparing octafluoropropane according to claim 6, wherein One side of the hollow rotating tube (503) is fixedly connected with a linkage cylinder (603), the linkage cylinder (603) is located in the interior of the mounting circular tube (602), one end of the linkage cylinder (603) is fixedly connected with a linkage support (607), one side of the linkage support (607) is fixedly connected with one side of the cross-shaped rotating rod one (605), one side of the cross-shaped rotating rod one (605) is fixedly connected with a bevel gear one (606).

8. The gas proportioner for preparing octafluoropropane according to claim 7, wherein The exterior of the mounting circular tube (602) is fixedly connected with a limiting circular frame two (611), the exterior of the limiting circular frame two (611) is connected with a cross-shaped rotating rod two (612) through a bearing, one side of the cross-shaped rotating rod two (612) is annularly distributed with reverse stirring vanes (614), one side of the cross-shaped rotating rod two (612) is fixedly connected with a bevel gear three (613), the exterior of the mounting circular tube (602) is fixedly connected with a tool block (609), both sides of the tool block (609) are connected with bevel gear twos (610) through bearings, the bevel gear twos (610) are engaged with the bevel gear one (606), the bevel gear twos (610) are engaged with the bevel gear three (613).

9. The gas proportioner for preparing octafluoropropane according to claim 8, wherein One side of the tool support (1) is fixedly connected with a flow control valve two (12), and the gas outlet end of the flow control valve two (12) is fixedly connected with a fluorine gas inlet pipe (11), one end of the fluorine gas inlet pipe (11) is fixedly connected with one end of an inlet frame (502), one side of a mixing tank two (3) is provided with a mounting opening, the inside of the mounting opening is fixedly connected with an inlet elbow (7), one end of a horizontal spiral inlet pipe (501) is fixedly connected in the inside of the inlet elbow (7), one side of the mixing tank two (3) is fixedly connected with two flow control valve one (10), the gas outlet ends of the two flow control valve one (10) are respectively fixedly connected with a heptafluoro-propane inlet pipe (9) and a nitrogen gas inlet pipe (8), one side of a mixing tank one (2) is provided with a collection opening, the inside of the collection opening is fixedly connected with a reactant discharge pipe (13), the outside of the mixing tank one (2) and the mixing tank two (3) are both provided with an electric heating annular plate (4).

Images