Automatic fluorine and nitrogen mixing device for octafluoropropane processing

Abstract

The invention belongs to the technical field of chemical engineering devices, particularly relates to an automatic fluorine and nitrogen mixing device for octafluoropropane processing, and provides the following scheme aiming at the problems that a joint with a larger joint is difficult to stably monitor in real time, a leakage buffer mechanism is lacked when leakage occurs, and gas can quickly diffuse and enter a working environment without obstruction. Comprising a support; the mixing tank is fixedly connected to the supporting frame; the pressure regulating valve is positioned below the mixing tank, and the pressure regulating valve is communicated with the discharge hole of the mixing tank; and a leakage detection module. According to the fluorine and nitrogen automatic mixing device for octafluoropropane processing, a liquid layer is formed at the large connecting position of a surface active agent solution coating connector, double leakage early warning is achieved in combination with a laser sensor and an electrochemical sensor, and meanwhile the gas leakage speed is slowed down through bubble wrapping; on the premise that the sealing detection reliability is guaranteed, time is bought for emergency disposal, and the operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical equipment, in particular to an automatic fluorine-nitrogen mixing device for processing octafluoropropane. Background Art

[0002] Octafluoropropane (C3F8) is a perfluoropropane formed by replacing eight hydrogen atoms in the propane molecule with fluorine. It is an inert fluorinated hydrocarbon organic compound. It is a colorless gas at room temperature and is insoluble in water. In the microelectronics industry, this compound is mainly used in plasma etching processes and device surface cleaning. It is also used in low-temperature refrigeration, medical gases and insulating media. Safety precautions must be taken during use: in case of leakage, a respirator must be worn and ventilation and dilution must be performed. In case of inhalation poisoning, the person must be moved to a well-ventilated area and given oxygen. When extinguishing a fire, the gas source should be cut off and mist water should be sprayed to cool the person down.

[0003] In the existing technology, fluorine gas is highly toxic and poses a great danger if it leaks. Joints with large seams (such as the mixing tank outlet) are difficult to monitor in real time and stably, making it difficult to detect trace amounts of high-risk gas leaks in a timely manner. In addition, there is a lack of a leak buffer mechanism when a leak occurs, and the gas will diffuse directly and quickly, entering the working environment unobstructed, resulting in extremely short emergency response time and high safety risks. Summary of the Invention

[0004] The present invention discloses an automatic fluorine-nitrogen mixing device for octafluoropropane processing, which aims to solve the technical problems in the background technology that large joints are difficult to monitor in real time and stably, and there is a lack of leakage buffer mechanism when leakage occurs, so the gas will diffuse rapidly and enter the working environment without obstruction.

[0005] The present invention provides an automatic fluorine-nitrogen mixing device for octafluoropropane processing, comprising a support frame; A mixing tank, wherein the mixing tank is fixedly connected to the support frame; A pressure regulating valve is located below the mixing tank and is connected to the discharge port of the mixing tank; A leakage detection module is provided below the mixing tank, and the leakage detection module includes a sliding ring frame, the sliding ring frame is fixedly connected to the lower end surface of the mixing tank, the sliding ring frame is slidably connected to a sliding platform, the sliding platform is provided with a slide groove, a sliding block is slidably connected in the slide groove, a rotating hole is provided on the sliding block, a rotating liquid outlet pipe is rotatably connected in the rotating hole, a plurality of liquid outlet holes are provided on the rotating liquid outlet pipe at equal intervals, a roller coating kit is provided on the outside of the lower end of the rotating liquid outlet pipe, a surfactant storage bottle is provided above the rotating liquid outlet pipe, and the liquid outlet of the surfactant storage bottle is connected to the rotating liquid outlet pipe. The leakage detection module performs fluorine gas leakage detection on the discharge port connection; A mixing auxiliary module is located inside the mixing tank. The mixing auxiliary module includes two fixed ring frames, both of which are fixedly connected to the inner wall of the mixing tank. Both of the fixed ring frames are fixedly connected to an annular tube, and both of the annular tubes are provided with multiple nozzles equidistantly around the circumference. The mixing auxiliary module evenly mixes two gases of different densities.

[0006] In a preferred solution, the leakage detection module also includes a transmission gear ring, which is fixedly connected to the upper end surface of the sliding ring frame, and an installation groove is provided on the sliding platform, in which a drive motor is fixedly connected, and the output end of the drive motor is fixedly connected to a transmission gear, and the teeth of the transmission gear can engage with the transmission gear ring.

[0007] In a preferred solution, a fixing hole is provided on the sliding platform, and an electric telescopic rod is fixedly connected in the fixing hole, and a driving end of the electric telescopic rod is fixedly connected to one side of the sliding block.

[0008] In a preferred solution, the sliding platform is provided with two sliding slots, and sliding rods are slidably connected in the two sliding slots. The lower ends of the two sliding rods are fixedly connected to mounting parts, and fixing holes are provided on the two mounting parts. An electrochemical sensor is fixedly connected in one fixing hole, and a laser sensor is fixedly connected in the other fixing hole. Pull ropes are fixedly connected to the outer walls on both sides of the opposite sides of the sliding block, and the ends of the two pulling ropes away from the sliding block are fixedly connected to one side of the corresponding mounting part.

[0009] In a preferred embodiment, two symmetrical fixed plates are fixedly connected to the inner wall of the sliding table, and circular holes are provided on the two fixed plates. The two pulling ropes are located in the corresponding circular holes, and the two pulling ropes are surrounded by return springs on the outside of one end close to the mounting piece. One end of the two return springs is fixedly connected to the corresponding fixed plate, and the other end is fixedly connected to the corresponding mounting piece.

[0010] In a preferred solution, the sliding platform is provided with two movable holes, both movable holes are rotatably connected with a rotating shaft, the outsides of the two rotating shafts are fixedly connected with guide wheels, and both pulling ropes slide on the outsides of the corresponding guide wheels.

[0011] In a preferred embodiment, the mixing auxiliary module also includes a universal motor, which is fixedly connected to the top of the mixing tank, and a magnetic coupler is provided on the top of the mixing tank. The driving end of the universal motor is fixedly connected to one end of the magnetic coupler, and the end of the magnetic coupler away from the universal motor is fixedly connected to a rotating rod.

[0012] In a preferred embodiment, the outside of the rotating rod is fixedly connected to a fixed sleeve, and the outside of the rotating rod is movably connected to a movable sleeve, the movable sleeve is located below the fixed sleeve, and the outside of the upper end of the fixed sleeve and the outside of the lower end of the movable sleeve are both fixedly connected to an axial flow stirring paddle.

[0013] In a preferred embodiment, the inner wall of the mixing tank is fixedly connected with an annular flow equalizing plate, and a mounting hole is opened on the annular flow equalizing plate. A rotating shaft is rotatably connected in the mounting hole, and the outside of the rotating shaft is fixedly connected with a transmission bevel gear 2, and the outside of the lower end of the fixed sleeve and the outside of the upper end of the movable sleeve are both fixedly connected with a transmission bevel gear 1, and the teeth of the two transmission bevel gears 1 can engage with each other.

[0014] In a preferred embodiment, a fluorine gas storage cylinder and a nitrogen gas storage cylinder are provided on one side of the mixing tank, and the gas outlet ends of the fluorine gas storage cylinder and the nitrogen gas storage cylinder are respectively provided with a fluorine gas flow control valve and a nitrogen flow control valve, and the outlet ends of the fluorine gas flow control valve and the nitrogen flow control valve are respectively provided with a fluorine gas inlet pipe and a nitrogen gas inlet pipe, and one end of the fluorine gas inlet pipe away from the fluorine gas flow control valve is connected to the annular pipe located above, and one end of the nitrogen gas inlet pipe away from the nitrogen flow control valve is connected to the annular pipe located below.

[0015] From the above, it can be seen that the automatic fluorine-nitrogen mixing device for octafluoropropane processing provided by the present invention uses a leakage detection module to coat the larger connection points of the interface with a surfactant solution to form a liquid layer, and combines laser and electrochemical dual sensors to achieve dual leakage warning. At the same time, the gas leakage rate is delayed by bubble wrapping, which buys time for emergency response while ensuring the reliability of sealing detection, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of the mixing tank proposed by the present invention; Figure 3 This is a schematic diagram of the structure of the leakage detection module proposed in the present invention; Figure 4 This is a structural diagram of the sliding platform of the leakage detection module proposed in the present invention; Figure 5 This is a schematic diagram of the internal structure of the sliding platform of the leakage detection module proposed in the present invention; Figure 6 This is a structural diagram of the leakage detection module mounting piece and the rotating liquid outlet pipe proposed in the present invention; Figure 7 This is a schematic diagram of the structure of the hybrid auxiliary module proposed in the present invention; Figure 8This is a structural diagram of the fixed sleeve and movable sleeve of the hybrid auxiliary module proposed in the present invention.

[0017] In the figure: 1, support frame; 2, mixing tank; 3, fluorine gas cylinder; 4, nitrogen gas cylinder; 5, leakage detection module; 501, sliding ring frame; 502, transmission gear ring; 503, sliding table; 504, driving motor; 505, transmission gear; 506, sliding block; 507, rotating liquid outlet pipe; 508, roller coating kit; 509, surfactant liquid storage bottle; 510, electric telescopic rod; 511, sliding rod; 512, mounting part; 513, fixing plate; 514, rotating shaft; 515, guide wheel; 516, pulling rope; 517, return spring; 51 8. Electrochemical sensor; 519. Laser sensor; 6. Mixing auxiliary module; 601. Universal motor; 602. Magnetic coupler; 603. Rotating rod; 604. Annular flow equalizing plate; 605. Fixed ring frame; 606. Annular tube; 607. Nozzle; 608. Transmission bevel gear 1; 609. Movable sleeve; 610. Rotating shaft; 611. Transmission bevel gear 2; 612. Axial flow agitator; 613. Fixed sleeve; 7. Fluorine gas flow control valve; 8. Fluorine gas inlet pipe; 9. Nitrogen gas flow control valve; 10. Nitrogen gas inlet pipe; 11. Pressure regulating valve. DETAILED DESCRIPTION

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

[0019] The present invention discloses an automatic fluorine-nitrogen mixing device for octafluoropropane processing, which is mainly used in scenarios where large joints are difficult to monitor stably in real time, and there is a lack of a leakage buffer mechanism when leakage occurs, so the gas will diffuse rapidly and enter the working environment without obstruction.

[0020] Reference Figures 1-8 , an automatic fluorine-nitrogen mixing device for octafluoropropane processing, comprising a support frame 1; Mixing tank 2, the mixing tank 2 is fixedly connected to the support frame 1; The pressure regulating valve 11 is located below the mixing tank 2 and is connected to the discharge port of the mixing tank 2; Leakage detection module 5, the leakage detection module 5 is arranged below the mixing tank 2, the leakage detection module 5 includes a sliding ring frame 501, the sliding ring frame 501 is fixedly connected to the lower end surface of the mixing tank 2, the sliding ring frame 501 is slidably connected to a sliding table 503, the sliding table 503 is provided with a chute, a sliding block 506 is slidably connected in the chute, the sliding block 506 is provided with a rotating hole, a rotating liquid outlet pipe 507 is rotatably connected in the rotating hole, a plurality of liquid outlet holes are provided on the rotating liquid outlet pipe 507 at equal intervals, a roller coating kit 508 is provided on the outside of the lower end of the rotating liquid outlet pipe 507, a surfactant storage bottle 509 is provided above the rotating liquid outlet pipe 507, the liquid outlet of the surfactant storage bottle 509 is connected to the rotating liquid outlet pipe 507, and the leakage detection module 5 performs fluorine gas leakage detection on the discharge port connection; The mixing auxiliary module 6 is located inside the mixing tank 2. The mixing auxiliary module 6 includes two fixed ring frames 605. The two fixed ring frames 605 are fixedly connected to the inner wall of the mixing tank 2. An annular tube 606 is fixedly connected to the two fixed ring frames 605. A plurality of nozzles 607 are equidistantly arranged on the two annular tubes 606. The mixing auxiliary module 6 evenly mixes the two gases of different densities.

[0021] Reference Figure 1 、 Figure 3 and Figure 4 The leakage detection module 5 also includes a transmission gear ring 502, which is fixedly connected to the upper end surface of the sliding ring frame 501, and a mounting groove is provided on the sliding platform 503, in which a driving motor 504 is fixedly connected. The output end of the driving motor 504 is fixedly connected to a transmission gear 505, and the teeth of the transmission gear 505 can engage with the transmission gear ring 502.

[0022] Reference Figure 1 、 Figure 4 and Figure 5 A fixing hole is provided on the sliding platform 503 , and an electric telescopic rod 510 is fixedly connected in the fixing hole, and a driving end of the electric telescopic rod 510 is fixedly connected to one side of the sliding block 506 .

[0023] Reference Figure 1 、 Figure 5 and Figure 6Two sliding slots are provided on the sliding table 503, and sliding rods 511 are slidably connected in the two sliding slots. The lower ends of the two sliding rods 511 are fixedly connected to the mounting parts 512, and the two mounting parts 512 are provided with fixing holes, one of which is fixedly connected to the electrochemical sensor 518, and the other is fixedly connected to the laser sensor 519, and the outer walls on both sides of the opposite sides of the sliding block 506 are fixedly connected to the pulling ropes 516, and the ends of the two pulling ropes 516 away from the sliding block 506 are fixedly connected to one side of the corresponding mounting part 512.

[0024] Reference Figure 1 、 Figure 5 and Figure 6 Two symmetrical fixed plates 513 are fixedly connected to the inner wall of the sliding table 503. Circular holes are provided on the two fixed plates 513. Two pulling ropes 516 are located in the corresponding circular holes, and the two pulling ropes 516 are surrounded by a return spring 517 on the outside of one end close to the mounting member 512. One end of the two return springs 517 is fixedly connected to the corresponding fixed plate 513, and the other end is fixedly connected to the corresponding mounting member 512.

[0025] Reference Figure 1 、 Figure 5 and Figure 6 There are two movable holes on the sliding platform 503, and the two movable holes are rotatably connected to the rotating shaft 514. The outside of the two rotating shafts 514 are fixedly connected to the guide wheels 515, and the two pulling ropes 516 slide on the outside of the corresponding guide wheels 515.

[0026] In a specific application scenario, a surfactant storage bottle 509 containing a surfactant solution is installed on the rotating liquid outlet pipe 507, and the surfactant solution flows out of the liquid outlet to infiltrate the roller coating kit 508. The drive motor 504 is started to rotate the transmission gear 505. The transmission gear 505 is engaged with the transmission gear ring 502, which drives the sliding table 503 to slide along the sliding ring frame 501, so that the roller coating kit 508 applies the surfactant solution to the connection between the mixing tank 2 discharge port and the pressure regulating valve 11. After the coating is completed, the electric telescopic rod 510 retracts, driving the sliding block 506 to slide, so that the roller coating kit 508 is separated from the connection between the mixing tank 2 discharge port and the pressure regulating valve 11. At the same time, the reset spring 517 elastically recovers, pushing the mounting parts 512 on both sides and the sliding rod 511 to slide toward the connection. Place the electrochemical sensor 518 and the laser sensor 519 close to the connection. If a small amount of gas leaks from the connection, it will be wrapped by the solution to form bubbles because the surfactant reduces the gas-liquid interfacial tension. At this time, the laser sensor 519 can detect the bubbles formed at the connection, thereby issuing a leakage warning. The bubble wrapping can slow down the speed of gas diffusion leakage, increasing the time for implementing remedial measures. If the gas directly breaks through the liquid layer, the fluorine gas component will be sensed by the electrochemical sensor 518, and then a leakage warning will be issued. Use the surfactant solution to coat the connection with a larger interface to form a liquid layer, and combine the laser and electrochemical dual sensors to achieve dual leakage warnings. At the same time, the gas leakage speed is slowed down by bubble wrapping, which buys time for emergency response while ensuring the reliability of sealing detection, thereby improving operational safety.

[0027] Reference Figure 1 、 Figure 7 and Figure 8 The mixing auxiliary module 6 also includes a universal motor 601, which is fixedly connected to the top of the mixing tank 2, and a magnetic coupler 602 is provided on the top of the mixing tank 2. The driving end of the universal motor 601 is fixedly connected to one end of the magnetic coupler 602, and the end of the magnetic coupler 602 away from the universal motor 601 is fixedly connected to a rotating rod 603.

[0028] Reference Figure 1 、 Figure 7 and Figure 8 The outside of the rotating rod 603 is fixedly connected to a fixed sleeve 613, and the outside of the rotating rod 603 is movably connected to a movable sleeve 609. The movable sleeve 609 is located below the fixed sleeve 613. The outside of the upper end of the fixed sleeve 613 and the outside of the lower end of the movable sleeve 609 are both fixedly connected to an axial flow stirring paddle 612.

[0029] Reference Figure 1 、 Figure 7 and Figure 8The inner wall of the mixing tank 2 is fixedly connected with an annular flow equalizing plate 604, and a mounting hole is opened on the annular flow equalizing plate 604. A rotating shaft 610 is rotatably connected in the mounting hole. The outside of the rotating shaft 610 is fixedly connected with a transmission bevel gear 2 611, and the outside of the lower end of the fixed sleeve 613 and the outside of the upper end of the movable sleeve 609 are both fixedly connected with a transmission bevel gear 1 608, and the teeth of the two transmission bevel gears 1 608 can engage with the transmission bevel gear 2 611.

[0030] Reference Figure 1 and Figure 2 A fluorine gas storage cylinder 3 and a nitrogen gas storage cylinder 4 are provided on one side of the mixing tank 2. A fluorine gas flow control valve 7 and a nitrogen gas flow control valve 9 are provided at the outlet ends of the fluorine gas storage cylinder 3 and the nitrogen gas storage cylinder 4 respectively. A fluorine gas inlet pipe 8 and a nitrogen gas inlet pipe 10 are provided at the outlet ends of the fluorine gas flow control valve 7 and the nitrogen gas flow control valve 9 respectively. The end of the fluorine gas inlet pipe 8 away from the fluorine gas flow control valve 7 is connected to the annular pipe 606 located above, and the end of the nitrogen gas inlet pipe 10 away from the nitrogen flow control valve 9 is connected to the annular pipe 606 located below.

[0031] In a specific application scenario, fluorine gas and nitrogen gas are respectively introduced into the corresponding annular tube 606 through the fluorine gas inlet pipe 8 and the nitrogen gas inlet pipe 10. The fluorine gas with larger molar mass and density is ejected from the nozzle 607 located above and gradually diffuses downward. The nitrogen gas with smaller molar mass and density is ejected from the nozzle 607 located below and gradually diffuses upward. It is further evenly mixed through the annular flow equalizing plate 604. At the same time, the universal motor 601 is started to drive the rotating rod 603 to rotate through the magnetic coupler 602, thereby driving the fixed sleeve 613 and the axial flow stirring paddle located thereon. 612 and the transmission bevel gear 1 608 rotate, and through the mutual engagement of the transmission bevel gear 1 608 and the transmission bevel gear 2 611, the movable sleeve 609 and the axial flow stirring paddle 612 located thereon are driven to rotate in the opposite direction. The two counter-rotating axial flow stirring paddles 612 enable continuous convection to be formed inside the mixing tank 2, which can significantly increase the mixing uniformity; injecting gases at different directions according to the difference in molar mass and density can promote the natural penetration and mixing of fluorine gas and nitrogen, and at the same time, continuous convection is formed by the counter-rotation of the dual axial flow stirring paddles 612, which can significantly improve the mixing uniformity.

[0032] Working principle: open the fluorine gas flow control valve 7 and the nitrogen gas flow control valve 9, and pass the required amount of fluorine gas and nitrogen gas into the corresponding annular tube 606 through the fluorine gas inlet pipe 8 and the nitrogen gas inlet pipe 10 respectively. The fluorine gas with larger molar mass and density is ejected from the nozzle 607 located at the top and gradually diffuses downward, and the nitrogen gas with smaller molar mass and density is ejected from the nozzle 607 located at the bottom and gradually diffuses upward, and is further evenly mixed through the annular flow equalizing plate 604. At the same time, the universal motor 601 is started to drive the rotating rod 603 to rotate through the magnetic coupler 602, thereby driving the fixed sleeve 613 and the axial flow stirring paddle 612 and the transmission bevel gear 1 608 thereon to rotate. Through the mutual engagement of the transmission bevel gear 1 608 and the transmission bevel gear 2 611, the movable sleeve 609 and the axial flow stirring paddle 612 located thereon are driven to rotate in the opposite direction. The two counter-rotating axial flow stirring paddles 612 continuously form convection inside the mixing tank 2, which can significantly increase the mixing uniformity. At the same time, a surfactant storage bottle 509 containing a surfactant solution is installed on the rotating liquid outlet pipe 507, and the surfactant solution flows out of the liquid outlet to infiltrate the roller coating kit 508, and the drive motor 504 is started to rotate the transmission gear 505. Through the mutual engagement of the transmission gear 505 and the transmission gear ring 502, the sliding table 503 is driven to slide along the sliding ring frame 501, so that the roller coating kit 508 applies the surfactant solution to the connection between the mixing tank 2 discharge port and the pressure regulating valve 11. After the coating is completed, the electric telescopic rod 510 retracts, driving the sliding block 506 to slide, so that the roller coating kit 508 is separated from the connection between the mixing tank 2 discharge port and the pressure regulating valve 11, and the reset spring 517 is rebounded. The property is restored, and the mounting parts 512 on both sides and the sliding rod 511 are pushed to slide toward the connection, so that the electrochemical sensor 518 and the laser sensor 519 are close to the connection. If a small amount of gas leaks from the connection, it will be wrapped by the solution to form bubbles because the surfactant reduces the gas-liquid interfacial tension. At this time, the laser sensor 519 can detect the bubbles formed at the connection, thereby issuing a leakage warning, and the wrapping of the bubbles can slow down the speed of gas diffusion leakage, thereby increasing the time for implementing remedial measures. If the gas directly breaks through the liquid layer, the fluorine gas component will be sensed by the electrochemical sensor 518, and then a leakage warning will be issued; after the mixing is completed, the pressure regulating valve 11 is opened to stably transport the mixed gas downstream.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automatic fluorine and nitrogen mixing device for octafluoropropane processing, characterized in that: comprising a support frame (1); A mixing tank (2), wherein the mixing tank (2) is fixedly connected to the support frame (1); A pressure regulating valve (11), the pressure regulating valve (11) is located below the mixing tank (2), and the pressure regulating valve (11) is connected to the discharge port of the mixing tank (2); A leakage detection module (5) is provided below the mixing tank (2), and the leakage detection module (5) comprises a sliding ring frame (501), the sliding ring frame (501) is fixedly connected to the lower end surface of the mixing tank (2), a sliding table (503) is slidably connected to the sliding ring frame (501), a sliding groove is provided on the sliding table (503), a sliding block (506) is slidably connected in the sliding groove, a rotating hole is provided on the sliding block (506), and a rotating hole is provided in the rotating hole. A rotating liquid outlet pipe (507) is rotatably connected, a plurality of liquid outlet holes are opened at equal intervals on the circumference of the rotating liquid outlet pipe (507), a roller coating kit (508) is provided on the outside of the lower end of the rotating liquid outlet pipe (507), a surfactant storage bottle (509) is provided above the rotating liquid outlet pipe (507), and the liquid outlet of the surfactant storage bottle (509) is connected to the rotating liquid outlet pipe (507), and the leakage detection module (5) performs fluorine gas leakage detection on the discharge port connection; A mixing auxiliary module (6) is located inside the mixing tank (2), and the mixing auxiliary module (6) includes two fixed ring frames (605), the two fixed ring frames (605) are fixedly connected to the inner wall of the mixing tank (2), and an annular tube (606) is fixedly connected to the two fixed ring frames (605). A plurality of nozzles (607) are equidistantly arranged on the two annular tubes (606). The mixing auxiliary module (6) uniformly mixes two gases of different densities.

2. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 1, characterized in that: The leakage detection module (5) further comprises a transmission gear ring (502), the transmission gear ring (502) being fixedly connected to the upper end surface of the sliding ring frame (501), and a mounting groove being provided on the sliding platform (503), a driving motor (504) being fixedly connected in the mounting groove, and a transmission gear (505) being fixedly connected to the output end of the driving motor (504), and the teeth of the transmission gear (505) being capable of meshing with the transmission gear ring (502).

3. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 2, characterized in that: A fixing hole is provided on the sliding platform (503), and an electric telescopic rod (510) is fixedly connected in the fixing hole. The driving end of the electric telescopic rod (510) is fixedly connected to one side of the sliding block (506).

4. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 3, characterized in that: The sliding platform (503) is provided with two sliding slots, and a sliding rod (511) is slidably connected in the two sliding slots. The lower ends of the two sliding rods (511) are fixedly connected to the mounting parts (512). The two mounting parts (512) are provided with fixing holes, one of which is fixedly connected to the electrochemical sensor (518), and the other is fixedly connected to the laser sensor (519). The outer walls on both sides of the sliding block (506) are fixedly connected to the pulling ropes (516), and the ends of the two pulling ropes (516) away from the sliding block (506) are fixedly connected to one side of the corresponding mounting part (512).

5. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 4, characterized in that: The inner wall of the sliding platform (503) is fixedly connected to two symmetrical fixed plates (513), and circular holes are provided on the two fixed plates (513). The two pulling ropes (516) are located in the corresponding circular holes, and the ends of the two pulling ropes (516) close to the mounting member (512) are surrounded by return springs (517). One end of the two return springs (517) is fixedly connected to the corresponding fixed plate (513), and the other end is fixedly connected to the corresponding mounting member (512).

6. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 5, characterized in that: The sliding platform (503) is provided with two movable holes, and a rotating shaft (514) is rotatably connected in each of the two movable holes. The exteriors of the two rotating shafts (514) are fixedly connected to guide wheels (515), and the two pulling ropes (516) slide on the exteriors of the corresponding guide wheels (515).

7. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 1, characterized in that: The mixing auxiliary module (6) further comprises a universal motor (601), the universal motor (601) being fixedly connected to the top of the mixing tank (2), and a magnetic coupler (602) being provided on the top of the mixing tank (2), the driving end of the universal motor (601) being fixedly connected to one end of the magnetic coupler (602), and the end of the magnetic coupler (602) away from the universal motor (601) being fixedly connected to a rotating rod (603).

8. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 7, characterized in that: The outside of the rotating rod (603) is fixedly connected to a fixed sleeve (613), and the outside of the rotating rod (603) is movably connected to a movable sleeve (609), the movable sleeve (609) is located below the fixed sleeve (613), and the outside of the upper end of the fixed sleeve (613) and the outside of the lower end of the movable sleeve (609) are both fixedly connected to an axial flow stirring paddle (612).

9. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 8, characterized in that: The inner wall of the mixing tank (2) is fixedly connected to an annular flow equalizing plate (604), and a mounting hole is opened on the annular flow equalizing plate (604). A rotating shaft (610) is rotatably connected in the mounting hole. The outside of the rotating shaft (610) is fixedly connected to a transmission bevel gear 2 (611), and the outside of the lower end of the fixed sleeve (613) and the outside of the upper end of the movable sleeve (609) are both fixedly connected to a transmission bevel gear 1 (608), and the teeth of the two transmission bevel gears 1 (608) can mesh with the transmission bevel gear 2 (611).

10. The automatic fluorine and nitrogen mixing device for octafluoropropane processing according to claim 1, characterized in that: A fluorine gas storage cylinder (3) and a nitrogen gas storage cylinder (4) are provided on one side of the mixing tank (2); a fluorine gas flow control valve (7) and a nitrogen gas flow control valve (9) are provided at the gas outlet ends of the fluorine gas storage cylinder (3) and the nitrogen gas storage cylinder (4), respectively; a fluorine gas inlet pipe (8) and a nitrogen gas inlet pipe (10) are provided at the outlet ends of the fluorine gas flow control valve (7) and the nitrogen gas flow control valve (9), respectively; and an end of the fluorine gas inlet pipe (8) away from the fluorine gas flow control valve (7) is connected to the annular pipe (606) located above, and an end of the nitrogen gas inlet pipe (10) away from the nitrogen flow control valve (9) is connected to the annular pipe (606) located below.

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