An automatic gas mixing device for fluorine and nitrogen mixtures and its usage method

Abstract

This invention discloses an automatic gas mixing device for fluorine-nitrogen mixture and its usage method, relating to the technical field of gas mixing devices. It includes a base plate and a housing fixedly mounted on top of the base plate. A control panel is installed on the lower part of one side of the front of the housing. The device also includes an inlet pipe symmetrically installed on both sides of the housing. An outlet pipe is connected to the middle of the top of the housing. Symmetrical partitions are fixed inside the housing. An inlet mechanism is provided inside the outer cavity, and a stirring mechanism is provided inside the inner cavity. The inlet mechanism includes a mounting box, inside which a motor is fixedly installed. The output end of the motor is fixedly connected to a main shaft, and a main pulley is connected to the upper outer side of the main shaft. This invention solves the problem that the device is not convenient for quickly mixing fluorine-nitrogen mixture with nitrogen, requiring a certain amount of time to mix, which reduces the gas mixing effect and efficiency of the fluorine-nitrogen mixture and the overall effectiveness of the device.

Description

Technical Field

[0001] This invention relates to the field of gas mixing device technology, specifically to an automatic gas mixing device for fluorine and nitrogen mixtures and its usage method. Background Technology

[0002] Fluorine-nitrogen mixture is an important raw material in the fine chemical industry. It is widely used in electronics, laser technology, pharmaceuticals and plastics, and can be used for glass etching, surface passivation of metal materials and pipes. In the preparation of fluorine-nitrogen mixture, a gas mixing device is usually used to mix the raw material fluorine-nitrogen mixture with a concentration of 30% and nitrogen with 99.99% to obtain a finished fluorine-nitrogen mixture with a concentration of 3‰.

[0003] For example, an automatic gas mixing device for fluorine-nitrogen mixed gas, disclosed in CN218834134U, includes a gas mixing box. The gas mixing box contains a pressure regulating unit, a flow regulating unit, a mixing unit, and an output unit connected sequentially. The pressure regulating unit is connected to a first input port and a second input port on the gas mixing box. The output unit includes a three-way valve connected to both the first and second output ports on the gas mixing box. By setting the three-way valve, the flow direction of the mixed gas when the concentration error is large is changed. This allows the mixed gas with a large concentration error to be separated from the mixed gas with the prepared standard concentration when gas mixing begins or when operating conditions change, thereby improving the accuracy and stability of the finished gas concentration. However, when mixing fluorine-nitrogen mixed gas with nitrogen, the device does not facilitate rapid mixing of the two gases, requiring a certain period of time for mixing. This reduces the gas mixing effect and efficiency of the fluorine-nitrogen mixed gas, thus reducing the effectiveness of the device and presenting certain drawbacks.

[0004] Therefore, we propose an automatic gas mixing device for fluorine and nitrogen mixtures and its usage method to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic gas mixing device for fluorine-nitrogen mixture and its usage method, so as to solve the problem that the device is not convenient for quickly mixing fluorine-nitrogen mixture with nitrogen, so that the two still need a period of time to mix, which reduces the gas mixing effect and efficiency of fluorine-nitrogen mixture and reduces the effectiveness of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic gas mixing device for fluorine and nitrogen mixture, comprising a base plate and a box fixedly installed on the top of the base plate, wherein a control panel is installed on the lower part of one side of the front of the box;

[0007] Also includes:

[0008] An air inlet pipe is symmetrically installed on both sides of the box. An air outlet pipe is connected to the top center of the box. A partition is symmetrically fixed inside the box. An outer cavity is provided on the two sides of the two partitions that are far apart. An inner cavity is provided on the inner side of the two partitions.

[0009] An air intake mechanism is provided inside the outer cavity, and an agitation mechanism is provided inside the inner cavity;

[0010] The air intake mechanism includes a mounting box, inside which a motor is fixedly installed. The output end of the motor is fixedly connected to a main shaft. A main pulley is connected to the upper outer side of the main shaft. The main shaft passes through the box and is fixedly connected to an upper plate. A compression rod is fixedly connected to the bottom end of the upper plate. A fixing plate is fixedly connected to the middle of the inner cavity of the outer cavity. A sliding rod is slidably connected to the inside of the fixing plate.

[0011] The top of the slide rod is fixedly connected to a lower plate, the top of the lower plate is connected to an abutment block, a spring is connected between the fixed plate and the lower plate, a piston plate is fixedly connected to the bottom of the slide rod, a rotating rod is installed on the outside of the slide rod, a connecting groove is opened in the lower part of the partition, a connecting cylinder is fixedly connected to one side of the partition, the connecting groove is connected to the connecting cylinder, a sealing block is rotatably installed on one side of the connecting cylinder, a spring is fixedly connected to the inner wall of the connecting cylinder, and the spring is fixedly connected to the sealing block.

[0012] The agitation mechanism includes a driven shaft and a driven pulley. The driven shaft is rotatably connected to the housing. The driven pulley is adapted to the main pulley via a belt. A gear is fixedly connected to the outer side of the middle part of the driven shaft. An installation ring is fixedly connected to the upper part of the inner cavity. An internal gear ring is rotatably connected to the inner side of the installation ring. The gear and the internal gear ring mesh with each other.

[0013] A stirring rod is installed on the top of the mounting ring, a stirring blade is installed on the lower outer side of the shaft, and a guide tube is installed inside the lower part of the inner cavity, with the guide tube located below the stirring blade.

[0014] Preferably, the mounting box is fixedly connected to the top of the housing, the main shaft is rotatably connected to the housing, the bottom end of the extrusion rod is spherical, the extrusion rods are symmetrically arranged, and there are no fewer than three extrusion rods.

[0015] By adopting the above technical solution, an air intake mechanism is provided, which improves the air intake efficiency. In conjunction with the stirring mechanism, the stirring blades rotate and disperse the mixed gas, further improving the mixing effect and mixing efficiency, and facilitating efficient gas mixing and distribution operations.

[0016] Preferably, the bottom height of the extrusion rod is lower than the top height of the abutment block, the number and position of the abutment blocks correspond to the extrusion rod, and the cross-sectional area of ​​the piston plate is equal to the cross-sectional area of ​​the outer cavity.

[0017] By adopting the above technical solution, the lower plate body drives the rotating rod to flip outward, the rotating rod stretches the second spring, the sliding rod moves down and simultaneously drives the piston plate to move down, the piston plate squeezes the gas in the lower part of the outer cavity into the connecting groove and the connecting cylinder, which facilitates auxiliary air intake.

[0018] Preferably, the top end of the first spring is fixedly connected to the lower plate, the bottom end of the first spring is fixedly connected to the fixing plate, and there are no fewer than three first springs.

[0019] By adopting the above technical solution, when the extrusion rod contacts the abutment block, the extrusion rod will press down on the abutment block, and the abutment block will drive the lower plate and the slide rod to move down. The lower plate compresses the spring to assist the lower plate in resetting.

[0020] Preferably, the top end of the rotating rod is rotatably connected to the sliding rod, a second spring is fixedly connected to the outside of the sliding rod, the end of the second spring away from the sliding rod is fixedly connected to the rotating rod, the bottom end of the rotating rod is arc-shaped, and there are no fewer than four rotating rods.

[0021] By adopting the above technical solution, the lower plate body drives the rotating rod to flip outward, the rotating rod stretches the second spring, the rotating rod supports the sliding rod downward, and the second spring is used to reset the rotating rod.

[0022] Preferably, the connecting cylinder is located inside the inner cavity, a top block is fixedly connected to the top of the connecting cylinder, a connecting rod is rotatably connected to the outer side of the top block, the connecting rod is fixedly connected to the sealing block, a magnetic strip is fixedly connected to the side of the sealing block, and the sealing block is tightly fitted to the connecting cylinder.

[0023] By adopting the above technical solution, the piston plate squeezes the gas in the lower part of the outer cavity into the connecting groove and the connecting cylinder. Then the gas pushes the sealing block, causing the sealing block to flip open. The sealing block stretches the spring three, and the fluorine-nitrogen mixture and nitrogen enter the inner cavity.

[0024] Preferably, the top of the mounting ring has an annular groove, the stirring rod is slidably connected to the annular groove, the bottom of the stirring rod is fixedly connected to the inner toothed ring, and there are no fewer than four stirring rods.

[0025] By adopting the above technical solution, the main shaft drives the main pulley to rotate, the main pulley drives the driven pulley to rotate through the belt, the driven pulley drives the driven shaft and gear to rotate, the gear drives the internal gear ring to rotate, the internal gear ring drives the stirring rod to rotate, and the stirring rod facilitates the disturbance of the internal mixed gas.

[0026] Preferably, a sliding sleeve is fitted onto the lower outer side of the driven shaft, the sliding sleeve is slidably connected to the driven shaft, the stirring blades are symmetrically fixed on the outer side of the sliding sleeve, a spring four is fixedly connected to the top of the sliding sleeve, the top end of the spring four is fixedly connected to a gear, and the spring four is slidably connected to the driven shaft.

[0027] By adopting the above technical solution, the gear drives the sliding sleeve and stirring blade to rotate through the spring. The stirring blade disperses the mixed gas, which further improves the mixing effect and mixing efficiency and reduces the gas mixing time.

[0028] The method of using an automatic gas mixing device for fluorine and nitrogen mixtures is as follows:

[0029] Step 1: Introduce a fluorine-nitrogen mixture into one side of the air inlet pipe and nitrogen into the other side of the air inlet pipe. The fluorine-nitrogen mixture and nitrogen are introduced into the outer cavities on both sides respectively. Start the motor inside the installation box through the control panel. The motor drives the main shaft and the upper plate to rotate. The upper plate drives the bottom extrusion rod to rotate. When the extrusion rod contacts the abutment block, the extrusion rod will press down on the abutment block. The abutment block drives the lower plate and the slide rod to move down. The lower plate compresses the spring.

[0030] Step 2: The lower plate body drives the rotating rod to flip outward, the rotating rod stretches spring 2, the sliding rod moves down and simultaneously drives the piston plate to move down, the piston plate squeezes the gas in the lower part of the outer cavity into the connecting groove and connecting cylinder, then the gas pushes the sealing block, causing the sealing block to flip open, the sealing block stretches spring 3, and the fluorine-nitrogen mixture and nitrogen enter the inner cavity. When the extrusion rod disengages from the abutment block, spring 1 drives the lower plate body to reset, causing the lower plate body to press down repeatedly, and the sealing block opens when pressing down and closes the auxiliary air intake when rising, thereby improving the air intake efficiency and reducing the backflow of the fluorine-nitrogen mixture and nitrogen mixture;

[0031] Step 3: While the main shaft is rotating, the main shaft drives the main pulley to rotate. The main pulley drives the driven pulley to rotate through the belt. The driven pulley drives the driven shaft and gear to rotate. The gear drives the internal gear ring to rotate. The internal gear ring drives the stirring rod to rotate. The stirring rod facilitates the disturbance of the internal mixed gas.

[0032] Step 4: The gear drives the sliding sleeve and stirring blade to rotate via spring 4. The stirring blade disperses the mixed gas, further improving the mixing effect and efficiency, and reducing the gas mixing time. The guide tube acts as a guide, so that when the fluorine-nitrogen mixture and nitrogen enter, they are dispersed by the stirring blade. At the same time, the stirring blade and spring 4 work together to buffer the impact of the gas, which facilitates the subsequent efficient mixing and gas distribution operation. After the gas distribution is completed, it can be output from the outlet pipe to the external collection device.

[0033] Compared with the prior art, the beneficial effects of the present invention are: the air intake mechanism is provided, which improves the air intake efficiency; in conjunction with the stirring mechanism, the stirring blades rotate and disperse the mixed gas, which further improves the mixing effect and mixing efficiency, and facilitates efficient gas mixing and distribution operation.

[0034] An air intake mechanism is provided, with a fluorine-nitrogen mixture input through one intake pipe and nitrogen input through the other. The fluorine-nitrogen mixture and nitrogen are respectively input into the outer cavities on both sides. The motor inside the mounting box is activated via the control panel, driving the main shaft and upper plate to rotate. The upper plate drives the bottom pressing rod to rotate. When the pressing rod contacts the abutment block, it presses down on the abutment block, causing the lower plate and slide rod to move downwards. The lower plate compresses spring one, and the lower plate drives the rotating rod to flip outwards, stretching spring two. The slide rod moves downwards in the same manner. The piston plate moves downward, squeezing the gas in the lower part of the outer cavity into the connecting groove and connecting cylinder. Then, the gas pushes the sealing block, causing the sealing block to flip open. The sealing block stretches the spring three, allowing the fluorine-nitrogen mixture and nitrogen to enter the inner cavity. When the squeezing rod disengages from the abutment block, the spring one drives the lower plate to reset, causing the lower plate to press down repeatedly. When it presses down, the sealing block opens, and when it rises, the sealing block closes the auxiliary air intake, thereby improving the air intake efficiency, reducing the backflow of the fluorine-nitrogen mixture and nitrogen mixture, and improving the performance.

[0035] Equipped with a stirring mechanism, the main shaft rotates simultaneously with the main pulley, which in turn drives the driven pulley via a belt. The driven pulley in turn drives the driven shaft and gears, which in turn drive the internal gear ring, which in turn drives the stirring rod. The stirring rod facilitates the disturbance of the internal mixed gas, and the gear, via a spring, drives the sliding sleeve and stirring blades to rotate. The stirring blades disperse the mixed gas, further improving the mixing effect and efficiency, and reducing the gas mixing time. The guide tube acts as a guide, ensuring that the fluorine-nitrogen mixture and nitrogen are dispersed by the stirring blades upon entry. Simultaneously, the stirring blades, in conjunction with the springs, buffer the impact of the gas, facilitating subsequent efficient mixing operations. After gas mixing is complete, the mixture is output to an external collection device through the outlet pipe. This solves the problem that the device is not convenient for quickly mixing the fluorine-nitrogen mixture with nitrogen, requiring a mixing time that reduces the mixing effect and efficiency of the fluorine-nitrogen mixture and the overall effectiveness of the device. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0038] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0039] Figure 4 This is a schematic cross-sectional view of the connecting cylinder structure of the present invention;

[0040] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point B;

[0041] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point C;

[0042] Figure 7 For the present invention Figure 4 Enlarged structural diagram at point D;

[0043] Figure 8 This is a schematic diagram of the installation ring cross-sectional structure of the present invention;

[0044] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point E;

[0045] Figure 10 This is a schematic diagram of the second three-dimensional overall structure of the present invention.

[0046] In the diagram: 1. Base plate; 2. Housing; 3. Control panel; 4. Inlet pipe; 5. Outlet pipe; 6. Inlet mechanism; 61. Mounting box; 62. Main shaft; 63. Main pulley; 64. Upper plate; 65. Extrusion rod; 66. Fixing plate; 67. Slide rod; 68. Lower plate; 69. Abutment block; 610. Spring 1; 611. Piston plate; 612. Rotating rod; 613. Spring 2; 614. Connecting groove 615. Connecting cylinder; 616. Top block; 617. Connecting rod; 618. Sealing block; 619. Spring three; 620. Magnetic strip; 7. Stirring mechanism; 71. Driven shaft; 72. Driven pulley; 73. Gear; 74. Mounting ring; 75. Internal gear ring; 76. Stirring rod; 77. Stirring blade; 78. Sliding sleeve; 79. Spring four; 710. Guide cylinder; 8. Baffle plate; 9. Outer cavity; 10. Inner cavity. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figure 1-10 The present invention provides a technical solution: an automatic gas mixing device for fluorine and nitrogen mixture, including a base plate 1 and a box 2 fixedly installed on the top of the base plate 1, and a control panel 3 is installed on the lower part of one side of the front of the box 2.

[0049] The air inlet pipe 4 is symmetrically installed on both sides of the box body 2. The air outlet pipe 5 is connected to the top center of the box body 2. The partition 8 is symmetrically fixed inside the box body 2. The outer cavity 9 is provided on the two sides of the two partitions 8 that are far apart. The inner cavity 10 is provided on the inner side of the two partitions 8.

[0050] An air intake mechanism 6 is provided inside the outer cavity 9. The air intake mechanism 6 includes a mounting box 61. A motor is fixedly installed inside the mounting box 61. A main shaft 62 is fixedly connected to the output end of the motor. A main pulley 63 is connected to the upper outer side of the main shaft 62. The main shaft 62 passes through the housing 2 and is fixedly connected to an upper plate 64. A pressing rod 65 is fixedly connected to the bottom end of the upper plate 64. A fixing plate 66 is fixedly connected to the middle of the outer cavity 9. A sliding rod 67 is slidably connected inside the fixing plate 66.

[0051] The mounting box 61 is fixedly connected to the top of the box body 2, the main shaft 62 is rotatably connected to the box body 2, the bottom end of the extrusion rod 65 is spherical, the extrusion rods 65 are symmetrically arranged, and there are no fewer than three extrusion rods 65.

[0052] The bottom height of the extrusion rod 65 is lower than the top height of the abutment block 69. The number and position of the abutment blocks 69 correspond to the extrusion rod 65. The cross-sectional area of ​​the piston plate 611 is equal to the cross-sectional area of ​​the outer cavity 9.

[0053] The top of the slide rod 67 is fixedly connected to the lower plate 68, and the top of the lower plate 68 is connected to the abutment block 69. A spring 610 is connected between the fixed plate 66 and the lower plate 68. A piston plate 611 is fixedly connected to the bottom of the slide rod 67. A rotating rod 612 is installed on the outside of the slide rod 67. A connecting groove 614 is opened in the lower part of the partition plate 8. A connecting cylinder 615 is fixedly connected to one side of the partition plate 8. The connecting groove 614 communicates with the connecting cylinder 615. A sealing block 618 is rotatably installed on one side of the connecting cylinder 615. A spring 619 is fixedly connected to the inner wall of the connecting cylinder 615. The spring 619 is fixedly connected to the sealing block 618.

[0054] The top end of spring 610 is fixedly connected to the lower plate 68, and the bottom end of spring 610 is fixedly connected to the fixed plate 66. There are at least three springs 610. The top end of rotating rod 612 is rotatably connected to sliding rod 67. Spring 613 is fixedly connected to the outside of sliding rod 67. The end of spring 613 away from sliding rod 67 is fixedly connected to rotating rod 612. The bottom end of rotating rod 612 is arc-shaped. There are at least four rotating rods 612.

[0055] The connecting cylinder 615 is located inside the inner cavity 10. A top block 616 is fixedly connected to the top of the connecting cylinder 615. A connecting rod 617 is rotatably connected to the outside of the top block 616. The connecting rod 617 is fixedly connected to the sealing block 618. A magnetic strip 620 is fixedly connected to the side of the sealing block 618. The sealing block 618 is tightly fitted to the connecting cylinder 615.

[0056] Example 1: As Figure 1-4 and Figure 6-7As shown, an air intake mechanism 6 is provided. A fluorine-nitrogen mixture is input through an air intake pipe 4 on one side, and nitrogen is input through an air intake pipe 4 on the other side. The fluorine-nitrogen mixture and nitrogen are respectively input into the outer cavities 9 on both sides. The motor inside the mounting box 61 is started by the control panel 3. The motor drives the main shaft 62 and the upper plate 64 to rotate. The upper plate 64 drives the bottom extrusion rod 65 to rotate. When the extrusion rod 65 contacts the abutment block 69, the extrusion rod 65 will press down on the abutment block 69. The abutment block 69 drives the lower plate 68 and the slide rod 67 to move down. The lower plate 68 compresses the spring 610.

[0057] Furthermore, the lower plate 68 drives the rotating rod 612 to flip outward, the rotating rod 612 stretches the second spring 613, the sliding rod 67 moves down and simultaneously drives the piston plate 611 to move down, the piston plate 611 squeezes the gas in the lower part of the outer cavity 9 into the connecting groove 614 and the connecting cylinder 615, then the gas pushes the sealing block 618, causing the sealing block 618 to flip open, the sealing block 618 stretches the third spring 619, and the fluorine-nitrogen mixture and nitrogen enter the inner cavity 10. When the extrusion rod 65 disengages from the abutment block 69, the first spring 610 drives the lower plate 68 to reset, causing the lower plate 68 to press down repeatedly, and the sealing block 618 opens when pressing down and closes the auxiliary air intake when rising, thereby improving the air intake efficiency, reducing the backflow of the fluorine-nitrogen mixture and nitrogen mixture, and improving the use effect.

[0058] The inner cavity 10 is equipped with an agitation mechanism 7, which includes a driven shaft 71 and a driven pulley 72. The driven shaft 71 is rotatably connected to the housing 2, and the driven pulley 72 is adapted to the main pulley 63 via a belt. A gear 73 is fixedly connected to the outer side of the middle part of the driven shaft 71. An installation ring 74 is fixedly connected to the upper part of the inner cavity 10. An internal gear ring 75 is rotatably connected to the inner side of the installation ring 74. The gear 73 and the internal gear ring 75 are meshed together.

[0059] The top of the mounting ring 74 is provided with an annular groove, the stirring rod 76 is slidably connected to the annular groove, the bottom of the stirring rod 76 is fixedly connected to the inner toothed ring 75, and there are no fewer than four stirring rods 76.

[0060] A stirring rod 76 is mounted on the top of the mounting ring 74, and a stirring blade 77 is mounted on the lower outer side of the shaft 71. A guide tube 710 is mounted on the lower part of the inner cavity 10, and the guide tube 710 is located below the stirring blade 77.

[0061] A sliding sleeve 78 is fitted onto the lower outer side of the shaft 71. The sliding sleeve 78 is slidably connected to the shaft 71. The stirring blade 77 is symmetrically fixed on the outer side of the sliding sleeve 78. A spring 79 is fixedly connected to the top of the sliding sleeve 78. The top of the spring 79 is fixedly connected to the gear 73. The spring 79 is slidably connected to the shaft 71.

[0062] Example 2: Figure 5 and Figure 8-10As shown, an agitation mechanism 7 is provided. When the main shaft 62 rotates, the main shaft 62 drives the main pulley 63 to rotate. The main pulley 63 drives the driven pulley 72 to rotate via a belt. The driven pulley 72 drives the driven shaft 71 and gear 73 to rotate. The gear 73 drives the internal gear ring 75 to rotate. The internal gear ring 75 drives the stirring rod 76 to rotate. The stirring rod 76 facilitates the disturbance of the internal mixed gas.

[0063] Furthermore, gear 73 drives the sliding sleeve 78 and stirring blade 77 to rotate via spring 4 79. The stirring blade 77 disperses the mixed gas, further improving the mixing effect and efficiency, and reducing the gas mixing time. The guide tube 710 acts as a guide, so that when the fluorine-nitrogen mixture and nitrogen enter, they are dispersed by the stirring blade 77. At the same time, the stirring blade 77, together with spring 4 79, buffers the impact of the gas, which facilitates the subsequent efficient mixing and gas distribution operation. After the gas distribution is completed, it can be output to the external collection device through the gas outlet pipe 5. This solves the problem that the device is not convenient for quickly mixing the fluorine-nitrogen mixture and nitrogen, which still requires a period of time to mix, reducing the gas distribution effect and efficiency of the fluorine-nitrogen mixture and reducing the effectiveness of the device.

[0064] Working principle: When using this device, firstly, as... Figure 1-10 As shown, a fluorine-nitrogen mixture is input into one side of the air intake pipe 4, and nitrogen is input into the other side of the air intake pipe 4. The fluorine-nitrogen mixture and nitrogen are respectively input into the outer cavities 9 on both sides. The motor inside the mounting box 61 is started by the control panel 3. The motor drives the main shaft 62 and the upper plate 64 to rotate. The upper plate 64 drives the bottom extrusion rod 65 to rotate. When the extrusion rod 65 contacts the abutment block 69, the extrusion rod 65 will press down on the abutment block 69. The abutment block 69 drives the lower plate 68 and the slide rod 67 to move down. The lower plate 68 compresses the spring 610.

[0065] The lower plate 68 drives the rotating rod 612 to flip outward, the rotating rod 612 stretches the second spring 613, the sliding rod 67 moves down and simultaneously drives the piston plate 611 to move down, the piston plate 611 squeezes the gas in the lower part of the outer cavity 9 into the connecting groove 614 and the connecting cylinder 615, then the gas pushes the sealing block 618, causing the sealing block 618 to flip open, the sealing block 618 stretches the third spring 619, and the fluorine-nitrogen mixture and nitrogen enter the inner cavity 10. When the extrusion rod 65 disengages from the abutment block 69, the first spring 610 drives the lower plate 68 to reset, causing the lower plate 68 to press down repeatedly, and the sealing block 618 opens when pressing down and closes the auxiliary air intake when rising, thereby improving the air intake efficiency and reducing the backflow of the fluorine-nitrogen mixture and nitrogen mixture.

[0066] While the main shaft 62 rotates, the main shaft 62 drives the main pulley 63 to rotate. The main pulley 63 drives the driven pulley 72 to rotate via the belt. The driven pulley 72 drives the driven shaft 71 and gear 73 to rotate. The gear 73 drives the internal gear ring 75 to rotate. The internal gear ring 75 drives the stirring rod 76 to rotate. The stirring rod 76 facilitates the disturbance of the internal mixed gas.

[0067] Gear 73 drives the sliding sleeve 78 and stirring blade 77 to rotate via spring 4 79. The stirring blade 77 disperses the mixed gas, further improving the mixing effect and efficiency, and reducing the gas mixing time. The guide tube 710 acts as a guide, so that when the fluorine-nitrogen mixture and nitrogen enter, they are dispersed by the stirring blade 77. At the same time, the stirring blade 77, together with spring 4 79, buffers the impact of the gas, which facilitates the subsequent efficient mixing and gas distribution operation. After the gas distribution is completed, it can be output from the gas outlet pipe 5 to the external collection device.

[0068] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0069] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic gas mixing device for fluorine and nitrogen mixture, comprising a base plate (1) and a box (2) fixedly installed on the top of the base plate (1), wherein a control panel (3) is installed on the lower part of one side of the front of the box (2). Its features are, Also includes: An air inlet pipe (4) is symmetrically installed on both sides of the box (2). An air outlet pipe (5) is connected to the top center of the box (2). A partition (8) is symmetrically fixed inside the box (2). An outer cavity (9) is provided on the two sides of the two partitions (8) that are far apart. An inner cavity (10) is provided on the inner side of the two partitions (8). An air intake mechanism (6) is provided inside the outer cavity (9), and an agitation mechanism (7) is provided inside the inner cavity (10). The air intake mechanism (6) includes a mounting box (61), a motor is fixedly installed inside the mounting box (61), a main shaft (62) is fixedly connected to the output end of the motor, a main pulley (63) is connected to the upper outer side of the main shaft (62), the main shaft (62) passes through the box (2) and is fixedly connected to an upper plate (64), a pressing rod (65) is fixedly connected to the bottom end of the upper plate (64), a fixing plate (66) is fixedly connected to the middle of the inner cavity (9), and a sliding rod (67) is slidably connected inside the fixing plate (66). The top of the slide rod (67) is fixedly connected to a lower plate (68), and the top of the lower plate (68) is connected to an abutment block (69). A spring (610) is connected between the fixing plate (66) and the lower plate (68). A piston plate (611) is fixedly connected to the bottom of the slide rod (67). A rotating rod (612) is installed on the outside of the slide rod (67). A connecting groove (614) is provided at the bottom of the partition plate (8). A connecting cylinder (615) is fixedly connected to one side of the partition plate (8). The connecting groove (614) is connected to the connecting cylinder (615). A sealing block (618) is rotatably installed on one side. A spring three (619) is fixedly connected to the inner wall of the connecting cylinder (615). The spring three (619) is fixedly connected to the sealing block (618). When the extrusion rod (65) contacts the abutment block (69), the extrusion rod (65) will press down on the abutment block (69). The abutment block (69) will drive the lower plate (68) and the slide rod (67) to move down. The lower plate (68) compresses the spring one (610). The bottom height of the extrusion rod (65) is lower than the top height of the abutment block (69). The number and position of the abutment blocks (69) correspond to the extrusion rod (65). The agitation mechanism (7) includes a driven shaft (71) and a driven pulley (72). The driven shaft (71) is rotatably connected to the housing (2). The driven pulley (72) is adapted to the main pulley (63) via a belt. A gear (73) is fixedly connected to the outer side of the middle part of the driven shaft (71). An installation ring (74) is fixedly connected to the upper part of the inner cavity (10). An internal gear ring (75) is rotatably connected to the inner side of the installation ring (74). The gear (73) meshes with the internal gear ring (75). A stirring rod (76) is installed on the top of the mounting ring (74). An annular groove is provided on the top of the mounting ring (74). The stirring rod (76) is slidably connected to the annular groove. The bottom of the stirring rod (76) is fixedly connected to the internal gear ring (75). A stirring blade (77) is installed on the lower outer side of the shaft (71). A guide tube (710) is installed below the interior of the inner cavity (10). The guide tube (710) is located below the stirring blade (77).

2. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 1, characterized in that: The mounting box (61) is fixedly connected to the top of the box body (2), the main shaft (62) is rotatably connected to the box body (2), the bottom end of the extrusion rod (65) is spherically set, the extrusion rod (65) is symmetrically set, and there are no less than three extrusion rods (65).

3. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 2, characterized in that: The cross-sectional area of ​​the piston plate (611) is equal to the cross-sectional area of ​​the outer cavity (9).

4. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 3, characterized in that: The top end of the first spring (610) is fixedly connected to the lower plate (68), and the bottom end of the first spring (610) is fixedly connected to the fixing plate (66). There are no fewer than three first springs (610).

5. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 4, characterized in that: The top of the rotating rod (612) is rotatably connected to the sliding rod (67). A second spring (613) is fixedly connected to the outside of the sliding rod (67). The end of the second spring (613) away from the sliding rod (67) is fixedly connected to the rotating rod (612). The bottom end of the rotating rod (612) is arc-shaped. There are no fewer than four rotating rods (612).

6. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 5, characterized in that: The connecting cylinder (615) is located inside the inner cavity (10). A top block (616) is fixedly connected to the top of the connecting cylinder (615). A connecting rod (617) is rotatably connected to the outer side of the top block (616). The connecting rod (617) is fixedly connected to the sealing block (618). A magnetic strip (620) is fixedly connected to the side of the sealing block (618). The sealing block (618) is tightly fitted to the connecting cylinder (615).

7. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 6, characterized in that: There are no fewer than four stirring rods (76).

8. The automatic gas mixing device for fluorine and nitrogen mixtures according to claim 7, characterized in that: A sliding sleeve (78) is fitted onto the lower outer side of the driven shaft (71). The sliding sleeve (78) is slidably connected to the driven shaft (71). The stirring blade (77) is symmetrically fixed on the outer side of the sliding sleeve (78). A spring four (79) is fixedly connected to the top of the sliding sleeve (78). The top of the spring four (79) is fixedly connected to the gear (73). The spring four (79) is slidably connected to the driven shaft (71).

9. A method of using an automatic fluorine-nitrogen gas mixing device, comprising the automatic fluorine-nitrogen gas mixing device as described in claim 8, wherein the method comprises the following steps: Step 1: A fluorine-nitrogen mixture is introduced into one side of the air inlet pipe (4), and nitrogen is introduced into the other side of the air inlet pipe (4). The fluorine-nitrogen mixture and nitrogen are introduced into the outer cavities (9) on both sides respectively. The motor inside the installation box (61) is started by the control panel (3). The motor drives the main shaft (62) and the upper plate (64) to rotate. The upper plate (64) drives the bottom extrusion rod (65) to rotate. When the extrusion rod (65) contacts the abutment block (69), the extrusion rod (65) will press down on the abutment block (69). The abutment block (69) drives the lower plate (68) and the slide rod (67) to move down. The lower plate (68) compresses the spring (610). Step 2: The lower plate (68) drives the rotating rod (612) to flip outward. The rotating rod (612) stretches the second spring (613). The sliding rod (67) moves down and simultaneously drives the piston plate (611) to move down. The piston plate (611) squeezes the gas in the lower part of the outer cavity (9) into the connecting groove (614) and the connecting cylinder (615). Then the gas pushes the sealing block (618), causing the sealing block (618) to flip open. The sealing block (618) stretches the third spring (619), and the fluorine-nitrogen mixture and nitrogen enter the inner cavity (10). When the extrusion rod (65) disengages from the abutment block (69), the first spring (610) drives the lower plate (68) to reset, causing the lower plate (68) to press down repeatedly. When it presses down, the sealing block (618) opens. When it rises, the sealing block (618) closes the auxiliary air intake, thereby improving the air intake efficiency and reducing the backflow of the fluorine-nitrogen mixture and nitrogen mixture. Step 3: While the main shaft (62) is rotating, the main shaft (62) drives the main pulley (63) to rotate. The main pulley (63) drives the driven pulley (72) to rotate through the belt. The driven pulley (72) drives the driven shaft (71) and gear (73) to rotate. The gear (73) drives the internal gear ring (75) to rotate. The internal gear ring (75) drives the stirring rod (76) to rotate. The stirring rod (76) facilitates the disturbance of the internal mixed gas. Step 4: The gear (73) drives the sliding sleeve (78) and the stirring blade (77) to rotate through the spring four (79). The stirring blade (77) rotates and disperses the mixed gas, further improving the mixing effect and mixing efficiency, and reducing the gas mixing time. The guide tube (710) plays a guiding role, so that when the fluorine-nitrogen mixed gas and nitrogen enter, they are dispersed by the stirring blade (77). At the same time, the stirring blade (77) works with the spring four (79) to buffer the impact of the gas, which facilitates the subsequent efficient mixing and gas distribution operation. After the gas distribution is completed, it can be output from the gas outlet pipe (5) to the external collection device.

Images