Automatic high-precision gas distribution and inflation device

Abstract

The invention discloses an automatic high-precision gas distribution and inflation device which comprises a gas mixing system composed of two gas mixing devices arranged in parallel, and the gas inlet end of the gas mixing system is connected with a first gas distribution pipeline and a second gas distribution pipeline through a first electric three-way valve. A gas analyzer for detecting gas components in the gas mixing device is arranged on the gas mixing device, and the gas analyzer is connected with the gas mixing device through a pressure reduction pipeline; an unpowered turbulator driven by injected gas is arranged in the gas mixing device; after various pure gases pass through the respective gas supercharging devices, the pressure of each gas path is automatically adjusted, the gas flow is adjusted, the proportioning is accurate, the pure gases are fully mixed through the gas mixing device, the gas analyzer and the mass flow meter are used for detection and control, and finally, the gas which is detected to be qualified is filled into a diving, danger-escaping and rescue gas bottle through the gas filling device, so that the safety of the diving, danger-escaping and rescue gas bottle is ensured. And the whole process is automatically controlled, so that the gas distribution mixing precision is better.

Description

Technical Field

[0001] The present invention relates to the technical field related to gas distribution and inflation, and in particular to an automated high-precision gas distribution and inflation device. Background Art

[0002] In the fields of chemical industry, semiconductor and diving manufacturing, precise control of the mixing ratio of reaction gases (such as the mixing pressure of hydrogen and nitrogen) directly affects product quality and reaction efficiency; and the safety and effectiveness of helium-oxygen mixtures in deep diving. Mixed gas is a gas mixed in a certain ratio. In deep-water diving, due to the smaller molecules of helium, it can better pass through the diver's body tissues, thereby reducing the risk of decompression sickness. Helium can also reduce the density of air, allowing divers to move more easily underwater. The gas concentration accuracy of each component of the mixed gas obtained by the current common pressure-type gas distribution method is only ±3%~8%. Manual operation makes the parameter visibility and result accuracy consistency poor; resulting in low mixing accuracy, it is difficult to meet high-precision and some special application scenarios. Summary of the Invention

[0003] In order to solve the defects of the prior art, the present invention provides an automated high-precision gas distribution and inflation device.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides an automated high-precision gas distribution and inflation device, comprising a gas mixing system consisting of two gas mixing devices arranged in parallel, wherein the gas inlet end of the gas mixing system is connected to a first gas distribution pipeline and a second gas distribution pipeline via a first electric three-way valve; the gas outlet end of the first gas distribution pipeline and the gas outlet end of the second gas distribution pipeline are both provided with a first gas pressurizing device, the first gas distribution pipeline is provided with a first pressure gauge, a first pressure sensor, and a first electrically controlled valve, and the second gas distribution pipeline is provided with a second pressure gauge, a second pressure sensor, a mass flow meter, and a second electrically controlled valve; The gas outlet of the gas mixing system is provided with a second gas boosting device, and the gas inlet and gas outlet of the gas mixing device are both provided with a third electrically controlled valve; the gas mixing device is provided with a gas analyzer for detecting the gas composition in the gas mixing device, and the gas analyzer and the gas mixing device are connected via a pressure reducing pipeline; the gas outlet of the gas mixing system is provided with a second gas boosting device connected to a plurality of gas cylinders via a gas supply pipeline; the gas mixing device is provided with an unpowered spoiler driven by the injected gas; It also includes a PLC controller, and the first pressure gauge, the first pressure sensor, the first electric control valve, the second pressure gauge, the second pressure sensor and the mass flow meter, the second electric control valve, the third electric control valve, and the gas analyzer are all connected to the PLC controller.

[0005] As a preferred technical solution of the present invention, the first gas distribution pipeline and the second gas distribution pipeline do not take in gas at the same time.

[0006] As a preferred technical solution of the present invention, the gas outlet end of the second gas boosting device and the gas outlet end of the first gas boosting device connected to the second gas distribution pipeline are both provided with a one-way gas outlet valve.

[0007] As a preferred technical solution of the present invention, the outlet end of the first gas boosting device and the inlet end of the air supply pipeline are connected to a pure oxygen charging pipeline, and a one-way outlet valve is also provided on the pure oxygen charging pipeline, and a fourth switch valve is also provided on the pure oxygen charging pipeline.

[0008] As a preferred technical solution of the present invention, it also includes a vacuum pumping pipeline for exhausting and vacuuming the pipelines in the mixing system and the pure oxygen inflation pipeline, the vacuum pumping pipeline includes a first vacuum pumping pipe connected to the air inlet end of the mixing system, and a second vacuum pumping pipe connected to the air outlet end of the mixing system, a second electric three-way valve is installed on the first vacuum pumping pipe and the second vacuum pumping pipe, and a solenoid valve is installed on the end of the second electric three-way valve that is not connected to the first vacuum pumping pipe and the second vacuum pumping pipe, the first vacuum pumping pipe and the second vacuum pumping pipe are connected to the vacuum main pipe, and the vacuum main pipe is provided with a vacuum pump.

[0009] As a preferred technical solution of the present invention, the working method of the gas distribution and inflation device is to inject pure gas into the gas mixing device under the pressure of the first gas booster device through the second gas distribution pipeline, and monitor the flow rate and quality of the injected gas through the mass flow meter during this process. When the set value is reached, the PLC controller controls the third electric control valve to close and stop the air intake, and then the PLC controller controls the first electric control valve on the first gas distribution pipeline to open, and inject oxygen into the gas mixing device under the pressure of the first gas booster device, and then mix it with other gases in the gas mixing device, and pass The gas analyzer is used to detect the gas component ratio in the mixing device in real time, and the first electrically controlled valve on the first gas distribution pipeline is used to adjust the flow rate according to the real-time detected gas ratios. When the gas component ratio in the mixing device reaches the index requirement of the gas analyzer, the first electrically controlled valves on the first distribution pipe group and the second distribution pipe group are closed to stop the air intake. Then the third electrically controlled valve at the air inlet end of the mixing device is closed, and at the same time the third electrically controlled valve at the air outlet end of the mixing device is opened. Under the pressurizing action of the second gas booster, the mixed gas is sent through the air delivery pipeline into the gas storage cylinder for inflation.

[0010] As a preferred technical solution of the present invention, the unpowered spoiler includes a vertically arranged rotating shaft arranged inside the mixing device and fixed to the inner cavity of the mixing device via a fixing frame, and multiple impellers of the rotating shaft. The mixing device is provided with an air intake pipe that is tangentially arranged to the blades of the impeller, and the fixing frame and the rotating shaft are connected via a bearing; and the inner cavity of the mixing device is provided with guide fins.

[0011] As a preferred technical solution of the present invention, the blade includes a first fin and a second fin, and the side ends of the first fin and the second fin are connected to form a V-shaped windward groove.

[0012] As a preferred technical solution of the present invention, a drive shaft is installed at the end of the outlet pipe connected to the gas mixing device and the gas analyzer, and connected to the second gas boosting device, and the outer end of the drive shaft is installed with a spoiler fan located inside the mixing device, and the outer end of the drive shaft is installed with a volute fan located inside the outlet pipe.

[0013] The beneficial effects of the present invention are: 1. This automated high-precision gas distribution and charging device injects pure gas into the gas mixing device under the pressure of the first gas booster through the second gas distribution pipeline. During this process, the flow rate and quality of the injected gas are monitored by the mass flow meter. When the set value is reached, the PLC controller controls the third electric control valve to close and stop the air intake. Then the PLC controller controls the first electric control valve on the first gas distribution pipeline to open, and injects oxygen into the gas mixing device under the pressure of the first gas booster, and then mixes it with other gases in the gas mixing device and passes through the gas analyzer. A gas analyzer is used to detect the gas component ratio in the gas mixing device in real time, and the flow of the first electrically controlled valve on the first gas distribution pipeline is adjusted according to the real-time detected gas ratios. When the gas component ratio in the gas mixing device measured by the gas analyzer reaches the index requirement, the first electrically controlled valves on the first and second gas distribution pipe groups are closed to stop the gas intake. Then the third electrically controlled valve at the gas inlet end of the gas mixing device is closed, and at the same time the third electrically controlled valve at the gas outlet end of the gas mixing device is opened. Under the pressurizing action of the second gas booster, the mixed gas is sent through the gas delivery pipeline into the gas storage cylinder for inflation.

[0014] 2. This automated, high-precision gas distribution and charging device automatically adjusts the pressure and flow rates of various pure gases after they pass through their respective gas boosters, achieving precise mixing ratios. The gases are then fully mixed in a mixing device, monitored and controlled using a gas analyzer and mass flowmeter. Finally, the charging device fills qualified gases into diving, escape, and rescue cylinders. This fully automated process ensures excellent gas distribution and mixing accuracy. It provides automated distribution of helium-oxygen and helium-nitrogen-oxygen mixtures. It automatically mixes gases while ensuring the uniformity and accuracy of the mixed gases. It can adjust distribution parameters, collect data such as mixed gas composition online, and dynamically monitor the distribution process. Gas analyzer data feeds back to the PLC controller. If the gas content measured in the mixing device does not meet the required ratio, the control program automatically calculates the gas mass with the highest content in the mixing device as the standard, opens the electric valve in the corresponding gas path, and accurately replenishes the gas content based on the measurements of the mass flowmeter and gas analyzer. During this process, the mixing device will not output gas until the required content is met.

[0015] 3. This type of automated high-precision gas distribution and inflation device is equipped with an unpowered spoiler driven by injected gas in the mixing device, wherein the unpowered spoiler is arranged tangentially to the blades of the impeller through the gas injected into the mixing device, thereby driving the impeller to rotate, thereby driving the entire rotating shaft, so that the multiple impellers on the rotating shaft can play a stirring role, so that the gas can be fully and evenly mixed. In this way, there is no need to set up a power source, which ensures that the mixing device has good sealing performance and can meet the high-pressure mixing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic structural diagram of an automated high-precision gas distribution and inflation device of the present invention; Figure 2 It is a schematic structural diagram of a gas mixing device of an automated high-precision gas distribution and charging device of the present invention; Figure 3 This is a schematic diagram of the coordination between the impeller and the air inlet pipe of an automated high-precision gas distribution and charging device of the present invention; Figure 4 This is a schematic diagram of the installation of a spoiler fan of an automated high-precision gas distribution and inflation device of the present invention; Figure 5 It is a schematic diagram of a guide fin of an automated high-precision gas distribution and inflation device of the present invention.

[0017] In the figure: 1, gas mixing device; 2, gas mixing system; 3, electric three-way valve; 4, first gas distribution pipeline; 5, second gas distribution pipeline; 6, first gas booster; 7, first pressure gauge; 8, first pressure sensor; 9, first electric control valve; 10, second pressure sensor; 11, mass flow meter; 12, gas analyzer; 13, second electric control valve; 14, third electric control valve; 17, gas supply pipeline; 18, gas cylinder; 19, single Outlet valve; 20. Second vacuum pumping pipe; 21. First vacuum pumping pipe; 22. Vacuum main pipe; 23. Vacuum pump; 24. Vacuum pump; 25. Solenoid valve; 26. Pure oxygen charging pipe; 27. Fourth switch valve; 28. Fixed bracket; 29. ​​Rotating shaft; 30. Impeller; 31. Inlet pipe; 32. Guide fin; 33. First fin; 34. Second fin; 35. Windward slot; 37. Drive shaft; 38. Turbine fan; 39. Volute fan. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example: Figure 1 As shown, the present invention provides an automated high-precision gas distribution and charging device, comprising a gas mixing system 2 consisting of two gas mixing devices 1 arranged in parallel, wherein the gas inlet end of the gas mixing system 2 is connected to a first gas distribution pipeline 4 and a second gas distribution pipeline 5 via a first electric three-way valve 3; the gas outlet end of the first gas distribution pipeline 4 and the gas outlet end of the second gas distribution pipeline 5 are both provided with a first gas boosting device 6, the first gas distribution pipeline 4 is provided with a first pressure gauge 7, a first pressure sensor 8, and a first electrically controlled valve 9, and the second gas distribution pipeline 5 is provided with a second pressure gauge, a second pressure sensor 10, a mass flow meter 11, and a second electrically controlled valve 13; The gas outlet of the gas mixing system 2 is provided with a second gas boosting device 10, and the gas inlet and gas outlet of the gas mixing device 1 are both provided with a third electrically controlled valve 14; the gas mixing device 1 is provided with a gas analyzer 12 for detecting the gas composition in the gas mixing device 1, and the gas analyzer 12 is connected to the gas mixing device 1 via a pressure reducing pipeline; the gas outlet of the gas mixing system 2 is provided with a second gas boosting device 10 connected to a plurality of gas storage cylinders 18 via a gas supply pipeline 17; the gas mixing device 1 is provided with an unpowered spoiler driven by the injected gas; It also includes a PLC controller, and the first pressure gauge 7, the first pressure sensor 8, the first electrically controlled valve 9, the second electrically controlled valve 13, the third electrically controlled valve 14, the second pressure gauge, the second pressure sensor 10 and the mass flow meter 11, and the gas analyzer 12 are all connected to the PLC controller.

[0020] The first gas distribution pipeline 4 and the second gas distribution pipeline 5 do not receive gas simultaneously. After passing through their respective gas boosters, the multiple pure gases automatically adjust the pressures and flow rates of each gas line, precisely proportioning them. They are then fully mixed in a gas mixing device, monitored and controlled using a gas analyzer and mass flowmeter. Finally, the gas filling device fills the qualified gases into diving, escape, and rescue cylinders. This fully automated process ensures high gas mixing accuracy. This system achieves automated gas distribution for helium-oxygen and helium-nitrogen-oxygen mixtures. It automatically mixes gases while ensuring the uniformity and accuracy of the mixed gases. It can adjust gas distribution parameters, collect data such as mixed gas composition online, and dynamically monitor the gas distribution process. The gas analyzer's detection data feeds back to the PLC controller. If the gas content measured in the mixing device does not meet the required proportion, the control program automatically calculates the gas content, using the highest gas content in the mixing device as the standard. The electric valve in the corresponding gas line is then opened, and the remaining gas content is accurately replenished based on the measurement results of the gas mass flowmeter and gas analyzer. During this process, the gas mixing device will not output gas until it meets the requirements.

[0021] The gas outlet end of the second gas boosting device 10 and the gas outlet end of the first gas boosting device 6 connected to the second gas distribution pipeline 5 are both provided with a one-way gas outlet valve 19, which has the function of preventing backflow.

[0022] Among them, the outlet end of the first gas boosting device 6 and the inlet end of the air supply pipeline 17 are connected to a pure oxygen charging pipeline 26, and a one-way outlet valve 19 is also provided on the pure oxygen charging pipeline, and a fourth switch valve 27 is also provided on the pure oxygen charging pipeline 26.

[0023] Among them, it also includes a vacuum pumping pipeline for exhausting and vacuuming the pipelines in the mixing system 2 and the pure oxygen charging pipeline 26, the vacuum pumping pipeline includes a first vacuum pumping pipe 21 connected to the air inlet end of the mixing system 2, and a second vacuum pumping pipe 20 connected to the air outlet end of the mixing system 2, a second electric three-way valve 24 is installed on the first vacuum pumping pipe 21 and the second vacuum pumping pipe 20, and a solenoid valve 25 is installed on the end of the second electric three-way valve not connected to the first vacuum pumping pipe 21 and the second vacuum pumping pipe 20, the first vacuum pumping pipe 21 and the second vacuum pumping pipe 20 are connected to the vacuum main pipe 22, and the vacuum main pipe 22 is provided with a vacuum pump 23; in this way, in the subsequent inflation process, the residual gas in the pipelines in the mixing system 2 and the pure oxygen charging pipeline 26 is extracted to avoid mixing into the subsequent inflation gas distribution, which causes the ratio to fluctuate.

[0024] The working method of the gas distribution and charging device is as follows: pure gas is injected into the gas mixing device 1 under the pressure of the first gas booster 6 through the second gas distribution pipeline 5, and the flow rate and quality of the injected gas are monitored by the mass flow meter 11 during the process. When the set value is reached, the PLC controller controls the third electric control valve to close and stop the air intake. Then the PLC controller controls the first electric control valve 9 on the first gas distribution pipeline 4 to open, and oxygen is injected into the gas mixing device 1 under the pressure of the first gas booster 6, and then mixed with other gases in the gas mixing device 1, and the gas analyzer 12 is used to measure the flow rate and quality of the injected gas. The gas analyzer detects the gas component ratio in the gas mixing device in real time, and adjusts the flow of the first electrically controlled valve 9 on the first gas distribution pipeline 4 according to the real-time detected gas ratios, until the gas component ratio in the gas mixing device reaches the index requirement of the gas analyzer, the first electrically controlled valve 9 on the first gas distribution pipe group 1 and the second gas distribution pipe group 2 is closed to stop the gas intake; then the third electrically controlled valve 14 at the gas inlet end of the gas mixing device 1 is closed, and at the same time the third electrically controlled valve 14 at the gas outlet end of the gas mixing device 1 is opened, and under the pressurizing action of the second gas booster 10, the mixed gas is sent through the gas delivery pipeline 17 into the gas storage bottle 18 for inflation.

[0025] like Figure 2 、 Figure 3 and Figure 4 As shown, the unpowered spoiler includes a vertically arranged rotating shaft 29, which is fixed to the inner cavity of the mixing device 1 via a fixing bracket 28. The rotating shaft 29 also includes multiple impellers 30. The mixing device 1 is provided with an air inlet pipe 31, which is arranged tangentially to the blades of the impeller 30. The fixing bracket 28 and the rotating shaft 29 are connected via a bearing. The inner cavity of the mixing device 1 is also provided with guide fins 32. The unpowered spoiler is driven by gas injected into the mixing device, which is arranged tangentially to the impeller blades. This drives the impeller to rotate, thereby driving the entire rotating shaft. This agitation is achieved through the multiple impellers on the rotating shaft, ensuring that the gas is fully and evenly mixed. This eliminates the need for a power source, ensures that the mixing device has good sealing properties, and can meet high-pressure mixing requirements.

[0026] The blade 30 includes a first fin 33 and a second fin 34. The side ends of the first fin 33 and the second fin 34 are connected to form a V-shaped windward groove 35, so that the blade has a better wind-inducing effect and is convenient for the air intake chamber to drive the blade to rotate.

[0027] A transmission shaft 37 is installed at the end of the outlet pipe connected to the gas mixing device 1 and the gas analyzer 12, and connected to the second gas boosting device 10, and the outer end of the transmission shaft 37 is installed with a spoiler fan 38 located inside the gas mixing device 1, and the outer end of the transmission shaft 37 is installed with a volute fan 39 located inside the outlet pipe. In this way, when the gas is discharged, the volute fan 39 is driven to rotate by the airflow during the discharge process, and then the spoiler fan is driven to rotate through the transmission shaft, thereby stirring the internal gas of the gas mixing device 1, so that the distribution concentration is uniform.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automated high-precision gas distribution and inflation device, characterized in that: The invention comprises a gas mixing system (2) composed of two gas mixing devices (1) arranged in parallel, wherein the gas inlet end of the gas mixing system (2) is connected to a first gas distribution pipeline (4) and a second gas distribution pipeline (5) via a first electric three-way valve (3); the gas outlet end of the first gas distribution pipeline (4) and the gas outlet end of the second gas distribution pipeline (5) are both provided with a first gas pressurizing device (6); the first gas distribution pipeline (4) is provided with a first pressure gauge (7), a first pressure sensor (8) and a first electric control valve (9); the second gas distribution pipeline (5) is provided with a second pressure gauge, a second pressure sensor (10), a mass flow meter (11) and a second electric control valve (13); The gas outlet of the gas mixing system (2) is provided with a second gas boosting device (10), and the gas inlet and gas outlet of the gas mixing device (1) are both provided with a third electrically controlled valve (14); the gas mixing device (1) is provided with a gas analyzer (12) for detecting the gas composition in the gas mixing device (1), and the gas analyzer (12) and the gas mixing device (1) are connected via a pressure reducing pipeline; the gas outlet of the gas mixing system (2) is provided with a second gas boosting device (10), and the gas outlet of the second gas boosting device (10) is connected to a plurality of gas storage bottles (18) via a gas supply pipeline (17); the gas mixing device (1) is provided with an unpowered spoiler driven by the injected gas; The system further comprises a PLC controller, wherein the first pressure gauge (7), the first pressure sensor (8), the first electrically controlled valve (9), the third electrically controlled valve (14), the second pressure gauge, the second pressure sensor (10), the mass flow meter (11), the second electrically controlled valve (11), and the gas analyzer (12) are all connected to the PLC controller.

2. An automated high-precision gas distribution and inflation device according to claim 1, characterized in that: The first gas distribution pipeline (4) and the second gas distribution pipeline (5) do not take in gas at the same time.

3. The automated high-precision gas distribution and inflation device according to claim 1, characterized in that: The gas outlet end of the second gas boosting device (10) and the gas outlet end of the first gas boosting device (6) connected to the second gas distribution pipeline (5) are both provided with a one-way gas outlet valve (19).

4. The automated high-precision gas distribution and inflation device according to claim 1, characterized in that: The outlet end of the first gas boosting device (6) and the inlet end of the gas supply pipeline (17) are connected to a pure oxygen charging pipeline (26), and a one-way outlet valve (19) is also provided on the pure oxygen charging pipeline. A fourth switch valve (27) is also provided on the pure oxygen charging pipeline (26).

5. The automated high-precision gas distribution and inflation device according to claim 4, characterized in that: The invention also includes a vacuum pumping pipeline for exhausting and vacuuming the pipeline in the gas mixing system (2) and the pure oxygen filling pipeline (26), wherein the vacuum pumping pipeline includes a first vacuum pumping pipe (21) connected to the gas inlet end of the gas mixing system (2), and a second vacuum pumping pipe (20) connected to the gas outlet end of the gas mixing system (2). A second electric three-way valve (24) is installed on the first vacuum pumping pipe (21) and the second vacuum pumping pipe (20), and a solenoid valve (25) is installed on the end of the second electric three-way valve that is not connected to the first vacuum pumping pipe (21) and the second vacuum pumping pipe (20). The first vacuum pumping pipe (21) and the second vacuum pumping pipe (20) are connected to a vacuum main pipe (22), and a vacuum pump (23) is provided on the vacuum main pipe (22).

6. An automated high-precision gas distribution and inflation device according to any one of claims 1 to 5, characterized in that: The working method of the gas distribution and charging device is to inject pure gas into the mixing device (1) under the pressure of the first gas boosting device (6) through the second gas distribution pipeline (5), and monitor the flow rate and quality of the injected gas through the mass flow meter (11). When the set value is reached, the PLC controller controls the third electric control valve to close and stop the air intake. Then the PLC controller controls the first electric control valve (9) on the first gas distribution pipeline (4) to open, and inject oxygen into the mixing device (1) under the pressure of the first gas boosting device (6), and then mix it with other gases in the mixing device (1), and use the gas analyzer (12) to analyze the gas flow. The instrument detects the gas component ratio in the gas mixing device in real time, and adjusts the flow of the first electric control valve (9) on the first gas distribution pipeline (4) according to the real-time detected gas ratios, until the gas component ratio in the gas mixing device reaches the index ratio required by the gas analyzer, the first electric control valve (9) on the first gas distribution pipe group (1) and the second gas distribution pipe group (2) are closed, and the gas intake is stopped; then the third electric control valve (14) at the gas inlet end of the gas mixing device (1) is closed, and at the same time the third electric control valve (14) at the gas outlet end of the gas mixing device (1) is opened, and the mixed gas is sent to the gas storage bottle (18) through the gas delivery pipeline (17) for inflation under the pressure of the second gas booster (10).

7. The automated high-precision gas distribution and inflation device according to claim 1, characterized in that: The unpowered spoiler comprises a vertically arranged rotating shaft (29) which is arranged inside the mixing device (1) and fixed to the inner cavity of the mixing device (1) via a fixing frame (28), and a plurality of impellers (30) on the rotating shaft (29); an air inlet pipe (31) which is arranged tangentially to the blades of the impeller (30) is provided on the mixing device (1); the fixing frame (28) and the rotating shaft (29) are connected via a bearing; and a guide fin (32) is provided inside the inner cavity of the mixing device (1).

8. An automated high-precision gas distribution and inflation device according to claim 7, characterized in that: The blade comprises a first fin (33) and a second fin (34), and the side ends of the first fin (33) and the second fin (34) are connected to form a V-shaped windward groove (35).

9. The automated high-precision gas distribution and charging device according to claim 7, characterized in that: A transmission shaft (37) is installed at the end of the outlet pipe connected to the gas mixing device (1) and the gas analyzer (12) and the second gas boosting device (10), and the outer end of the transmission shaft (37) is installed with a turbulent fan (38) located inside the gas mixing device (1), and the outer end of the transmission shaft (37) is installed with a volute fan (39) located inside the outlet pipe.

Images