An oxygen, nitrogen, and hydrogen metal analyzer, detection system, and method.

Abstract

This invention belongs to the technical field of oxygen, nitrogen, and hydrogen analyzers, specifically relating to an oxygen, nitrogen, and hydrogen metal analyzer, detection system, and method. It includes a housing, with a first lifting cylinder, a second lifting cylinder, a material loading mechanism connected to the first lifting cylinder, a rotating mechanism connected to the second lifting cylinder, an upper electrode, a furnace head, and a gas detection tube connected to the furnace head arranged vertically on the side of the housing. The furnace head has a feeding channel connected to the gas detection tube. After the sample is melted, the gas inside the furnace head is introduced into the gas detection tube for detection. The invention also includes a swing arm connected to the rotating mechanism. At the end of the swing arm away from the rotating mechanism, there is a rotating arm, a spray hole located on the outside of the rotating arm, a retractable cleaning component penetrating the spray hole, and a threaded cleaning rod connected to the top of the rotating arm. This invention cleans the deposits in the feeding channel using two cleaning modes, automatically cleaning the attached carbon black along two degrees of freedom, thus accelerating the cleaning process throughout the detection process.

Description

Technical Field

[0001] This invention belongs to the technical field of oxygen, nitrogen, and hydrogen analyzers, specifically relating to an oxygen, nitrogen, and hydrogen metal analyzer, detection system, and method. Background Technology

[0002] The oxygen, nitrogen, and hydrogen analyzer employs a pulse heating and melting method under inert gas protection. It decomposes metal samples at high temperatures and utilizes infrared and thermal conductivity detection technologies to simultaneously determine the three elements: oxygen, nitrogen, and hydrogen. During the detection process, oxygen is processed in a graphite crucible and conversion furnace to form carbon dioxide, the content of which can be determined by non-dispersive infrared absorption. Hydrogen is converted into water vapor after catalytic oxidation, and its content can be determined by infrared absorption. Nitrogen does not participate in the reaction and its content can be determined by thermal conductivity detection.

[0003] In terms of detection, existing detection circuits, pulse electrode furnaces, and supporting gas path modules are integrated into one unit and can be fully controlled by a single host. For example, the retrieved Chinese invention patent application (publication number: CN114486797A) discloses a dual-mode full-range oxygen, nitrogen, and hydrogen analyzer, which includes four independent modules: pulse electrode furnace, gas path system, circuit system, and detection system. It is equipped with an infrared hydrogen analysis cell, an infrared nitrogen analysis cell, and a thermal conductivity detection cell, respectively, for detecting oxygen, nitrogen, and hydrogen content.

[0004] Before testing the sample, the purge valve of the gas circuit system is opened, and the airflow is used to purge the furnace head to remove dust and other impurities. However, the inner wall of the furnace head or automatic feeding channel is prone to carbon black produced by the high temperature heating of the sample. In addition, the built-in furnace head and automatic feeding channel are set downward and close to the outer shell, making manual cleaning difficult and slowing down the cleaning process. Summary of the Invention

[0005] The purpose of this invention is to provide an oxygen, nitrogen, and hydrogen metal analyzer, detection system, and method that can clean the deposits on the feeding channel through two cleaning modes. It can automatically clean the attached carbon black along two degrees of freedom without manual cleaning, thus speeding up the cleaning process of the entire detection process.

[0006] The specific technical solution adopted by this invention is as follows: An oxygen, nitrogen, and hydrogen metal analyzer includes a housing. A first lifting cylinder, a second lifting cylinder, a material loading mechanism connected to the first lifting cylinder, a rotating mechanism connected to the second lifting cylinder, an upper electrode, a furnace head, and a gas detection tube connected to the furnace head are vertically arranged sequentially on the side of the housing. The furnace head has an internal feeding channel connected to the gas detection tube. After sample melting, the gas inside the furnace head is introduced into the gas detection tube for detection. The analyzer also includes: The swing arm connected to the rotating mechanism has a rotating arm, a spray hole located on the outside of the rotating arm, a retractable cleaning component passing through the spray hole, and a threaded cleaning rod connected to the top of the rotating arm at one end away from the rotating mechanism. In the first cleaning mode, before inspection, the rotating mechanism provides rotational power, and the rotating arm and threaded cleaning rod rotate in the feeding channel to clean the attached substances. In the second cleaning mode, after inspection, the rotating arm is used to circulate cleaning agent on the inner wall of the cleaning channel, and the retractable cleaning component is driven by the cleaning agent to perform two degrees of freedom of rotational cleaning.

[0007] As an optional solution, the retractable cleaning assembly includes a rubber band, a telescopic column, a rotating disk, and a cleaning component connected sequentially along the axial direction of the spray hole. The telescopic column has a spiral groove spaced apart from the rotating disk on its outer side, and the rotating disk has multiple fins arranged in a circumferential array on the side near the rubber band. When the cleaning agent flows inside the rotating arm, the cleaning agent pushes the telescopic column in the spiral groove to rotate out of the spray hole and spray it into the feeding channel along the spray hole. The cleaning agent pushes the vane to rotate the rotating disk and the cleaning component. The cleaning component has at least one degree of freedom for rotational cleaning. The wing has an inclination, and the central axis of the wing forms an angle with the central axis of the telescopic column.

[0008] As an optional solution, the rotating arm is provided with a bearing shell and a transmission pipe that are respectively connected to both ends of the swing arm, and the bottom of the rotating arm is rotatably connected to a cleaning agent delivery pipe for conveying cleaning agent; When the transmission tube rotates, it drives the rotating arm to rotate on the bearing shell, and the outer side of the threaded cleaning rod removes the deposits attached to the inner wall of the feeding channel.

[0009] As an optional solution, the material loading mechanism includes an insulated base and a lower electrode that are sequentially connected to the cylinder rod of the first lifting cylinder; When the thread cleaning rod enters the feeding channel, the first lifting cylinder lowers the insulating base to prevent the lower electrode from obstructing the flow of cleaning agent.

[0010] As an optional solution, the rotating mechanism includes a support frame, a brake motor, and a support shaft connected in sequence to the cylinder rod of the second lifting cylinder, the brake motor and the support shaft being used to rotate the swing arm; When the brake motor starts, the swing arm drives the rotating arm to move, so that the rotating arm is positioned relative to the feeding channel.

[0011] As an optional solution, the top of the support shaft is provided with a protective shell and a rotary motor connected to the inside of the protective shell, and the rotary motor is connected to the rotary arm in a transmission connection. When the rotary motor is started, the rotary arm drives the threaded cleaning rod and the retractable cleaning assembly to rotate.

[0012] As an optional solution, the furnace head is provided with a mounting bracket connected to the upper electrode, a feeding hole located inside the mounting bracket, two electric push rods fixed at intervals on one side of the mounting bracket, and a material storage tube. The rods of the two electric push rods extend into the mounting bracket and are fixed with perforated plates. Before testing, the two electric push rods retract until the holes in the two perforated plates coincide with the discharge hole and the storage pipe, forming a feeding channel.

[0013] An oxygen, nitrogen, and hydrogen metal detection system, applied to the aforementioned oxygen, nitrogen, and hydrogen metal analyzer, includes a computer for controlling the entire system, and further includes components electrically connected to the computer: A power control module is electrically connected to the electrode structure. During the melting process, the power control module controls the heating power of the electrode structure. A converter is used to receive the gas discharged from the gas detection tube. The converter contains a catalyst for gas catalytic oxidation reaction to form water vapor and converted gas. An infrared hydrogen detection module is used to absorb and measure water vapor content, and the computer obtains the hydrogen content detection result based on the water vapor content. The infrared oxygen measurement module is used to obtain the absorption intensity of carbon dioxide when the detection data of the infrared hydrogen measurement module tends to stabilize. The computer quantitatively calculates the carbon dioxide concentration and obtains the oxygen content detection result based on the carbon dioxide concentration. A carbon dioxide absorption module, wherein the carbon dioxide absorption module is used to absorb carbon dioxide from the residual gas in the infrared oxygen measurement module; The gas filtered by the carbon dioxide absorption module is passed into the thermal conductivity nitrogen measurement module, which generates a change in thermal conductivity. The computer obtains the nitrogen content detection result based on the change in thermal conductivity.

[0014] A method for detecting oxygen, nitrogen, and hydrogen metals, using the oxygen, nitrogen, and hydrogen metal detection system as described, includes the following steps: Melting treatment: The sample is placed in a closed electrode structure, the heating power of the electrode structure is set, the electrode structure is energized, and the sample is heated to the set temperature range, so that the oxygen, nitrogen and hydrogen components in the sample are vaporized to form gas. Catalytic reaction: Gas discharged through the gas detection tube by the electrode structure of the converter is reacted with the catalyst inside the converter to form water vapor and converted gas. First test: When the valve at the bottom of the converter is opened, water vapor and conversion gas flow into the infrared hydrogen measurement module under the compression of helium. The infrared hydrogen measurement module absorbs and measures the water vapor content, and the computer obtains the hydrogen content detection result based on the water vapor content. Second detection: After the output signal of the infrared hydrogen measurement module stabilizes, the valve at the bottom of the infrared hydrogen measurement module is opened. The gas detected by the infrared hydrogen measurement module flows into the infrared oxygen measurement module under the compression of helium gas, and the carbon dioxide absorption intensity is obtained. The computer quantitatively calculates the carbon dioxide concentration and obtains the oxygen content detection result based on the carbon dioxide concentration. Filtration: After the output signal of the infrared oxygen measurement module stabilizes, the valve at the bottom of the infrared oxygen measurement module opens, and the remaining gas inside the infrared oxygen measurement module is introduced into the carbon dioxide absorption module to absorb the carbon dioxide in the remaining gas. The third test: The gas filtered by the carbon dioxide absorption module is passed into the thermal conductivity nitrogen measurement module under the action of helium. The thermal conductivity nitrogen measurement module generates a change in resistance based on the difference in thermal conductivity between nitrogen and carbon dioxide. The computer obtains the nitrogen content detection result based on the change in resistance.

[0015] An electronic device, the electronic device comprising: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the oxygen, nitrogen, and hydrogen metal detection method.

[0016] The technical effects achieved by this invention are as follows: This invention employs two cleaning modes to clean the deposits on the feeding channel before and after sample testing. It automatically cleans the adhering carbon black along two degrees of freedom, eliminating the need for manual cleaning and accelerating the cleaning process. During cleaning, a lifting cylinder controls the electrode structure to widen the spacing, preventing damage to the electrode structure.

[0017] In this invention, during the second cleaning mode, a retractable cleaning component is installed while the cleaning agent is sprayed. Driven by the cleaning agent, the component removes the attached carbon black in two degrees of freedom, flexibly cleaning the feeding channel and improving the cleaning efficiency of the deposits. After cleaning, an external drainage pipe collects wastewater, preventing it from flowing onto the electrode structure.

[0018] In this invention, epoxy triacetate or XM665T ionic surfactant is selected as the cleaning agent. The cleaning agent is mixed with tap water at a volume ratio of 1:3, and the temperature is controlled within the range of 30℃ to 45℃ to improve the cleaning efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oxygen, nitrogen, and hydrogen metal analyzer according to Embodiment 1 of the present invention; Figure 2 This is a rear view of an oxygen, nitrogen, and hydrogen metal analyzer according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the first lifting cylinder in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the burner head structure in Embodiment 1 of the present invention; Figure 5 This is a side view of the burner head in Embodiment 1 of the present invention; Figure 6 This is a cross-sectional view of the burner head in Embodiment 1 of the present invention; Figure 7 This is a cross-sectional view of the second lifting cylinder in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the structure of the second lifting cylinder in Embodiment 1 of the present invention; Figure 9 This is an exploded view of the rotating arm in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the telescopic column in Embodiment 1 of the present invention; Figure 11 This is a system block diagram of the control signal transmission state of an oxygen, nitrogen, and hydrogen metal detection system according to Embodiment 1 of the present invention; Figure 12 This is a flowchart of an oxygen, nitrogen, and hydrogen metal detection method according to Embodiment 2 of the present invention; Figure 13 This is a schematic diagram of the electronic device in Embodiment 2 of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Housing; 2. First lifting cylinder; 3. Insulating base; 4. Lower electrode; 5. Support frame; 6. Brake motor; 7. Support shaft; 8. Guide tube; 9. Protective shell; 10. Rotary motor; 11. Swing arm; 12. Bearing shell; 13. Rotating arm; 14. Cleaning agent delivery pipe; 15. Spray hole; 16. Threaded cleaning rod; 17. Transmission pipe; 18. Rubber band; 19. Telescopic column; 20. Spiral groove; 21. Rotating disk; 22. Cleaning component; 23. Wing; 24. Furnace head; 25. Upper electrode; 26. Mounting frame; 27. Electric push rod; 28. Perforated plate; 29. ​​Material storage pipe; 30. Gas detection pipe; 31. Second lifting cylinder. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] Example 1: like Figures 1-11 As shown, an oxygen, nitrogen, and hydrogen metal analyzer includes a housing 1. A first lifting cylinder 2, a second lifting cylinder 31, an insulating base 3, a lower electrode 4, an upper electrode 25, a furnace head 24, and a gas detection tube 30 connected to the furnace head 24 are arranged vertically on the side of the housing 1. During operation, the inner wall of the furnace head 24 is first cleaned. Since the furnace head 24 has a feeding channel connected to the gas detection tube 30, after the cleaning is completed, the operator uses tweezers to take the sample and put it into the feeding channel to complete the feeding action. In this process, the first lifting cylinder 2 raises the insulating base 3 until the lower electrode 4 and the upper electrode 25 close together, sealing the sample. Simultaneously, the lower electrode 4 and the upper electrode 25 are energized, generating a high-temperature environment exceeding 3000°C to melt the sample, causing the oxygen, nitrogen, and hydrogen components in the sample to form gases. After the sample is melted, the gas inside the furnace head 24 is introduced into the gas detection tube 30 for detection. Also includes: The swing arm 11 of the furnace head 24 is provided with a rotating arm 13, a spray hole 15 located on the outside of the rotating arm 13, a telescopic column 19 passing through the spray hole 15, and a threaded cleaning rod 16 welded to the top of the rotating arm 13. The swing arm 11, the first lifting cylinder 2, the second lifting cylinder 31, the lower electrode 4, the upper electrode 25, and the gas detection tube 30 are all controlled by the computer built into the housing 1. In order to realize the automated cleaning of the feeding channel, the computer sets the first cleaning mode and the second cleaning mode through a preset program. In the first cleaning mode, before sample testing, the swing arm 11 moves the rotating arm 13 and the thread cleaning rod 16 to a position directly opposite the feeding channel. After they are in place, the second lifting cylinder 31 raises the swing arm 11, driving the rotating arm 13 and the thread cleaning rod 16 into the feeding channel. The swing arm 11 provides rotational power, and the rotating arm 13 and the thread cleaning rod 16 rotate in the feeding channel to clean the attached materials. After rotating for a specified time, the rotation stops, and the second lifting cylinder 31 lowers the rotating arm 13 and the thread cleaning rod 16 and resets them. In the second cleaning mode, after sample testing, the rotating arm 13 and the threaded cleaning rod 16 re-enter the feeding channel. The rotating arm 13 is circulated with cleaning agent used to clean the inner wall of the feeding channel, and the telescopic column 19 is driven by the cleaning agent to perform two degrees of freedom of rotation cleaning.

[0023] As an optional embodiment, the first lifting cylinder 2 is connected to the insulating base 3 via a coupling that passes vertically through the worktable of the housing 1. The worktable has a circular hole for accommodating the insulating base 3 and the lower electrode 4. When the insulating base 3 is raised or lowered, the circular hole laterally limits the insulating base 3. The lower electrode 4 and the upper electrode 25 are both fixed by bonding with insulating high-temperature resistant adhesive to prevent loosening when they are closed. The first lifting cylinder 2 and the second lifting cylinder 31 are both bolted to the box below the housing 1 and suspended above the ground.

[0024] See attached document Figure 1 , Figure 6 and Figure 7 When the thread cleaning rod 16 enters the feeding channel, the first lifting cylinder 2 lowers the insulating base 3 and the lower electrode 4 until a gap is left between the lower electrode 4 and the upper electrode 25 to prevent the lower electrode 4 from obstructing the flow of cleaning agent.

[0025] See attached document Figure 4 , Figure 5 and Figure 6 The furnace head 24 is provided with a mounting bracket 26 connected to the upper electrode 25, a feeding hole located inside the mounting bracket 26, two electric push rods 27 fixed at intervals on one side of the mounting bracket 26, and a material storage pipe 29. The rods of the two electric push rods 27 extend into the mounting bracket 26 and the rods are fixed with perforated plates 28. Before testing, the two electric push rods 27 retract and move the two perforated plates 28 in the forward direction. The holes of the two perforated plates 28 coincide with the feeding hole and the storage tube 29 to form a feeding channel for the sample to enter the storage tube 29. Then, the two perforated plates 28 are moved away in the reverse direction to leave the sample in the storage tube 29. After the lower electrode 4 and the upper electrode 25 are closed, the lower perforated plate 28 moves forward until the sample enters the lower electrode 4 along the feeding channel. At this time, the perforated plate 28 is reset and the feeding channel is closed. Since the inclined surface of the perforated plate 28 is in close contact with the inclined surface of the mounting bracket 26, the sealing performance of the feeding channel is improved, which is used to provide a sealed environment before the sample is melted.

[0026] As an optional embodiment, the mounting bracket 26 is fixed to the outside of the housing 1 by screws on both sides, the two electric push rods 27 are fixed to one side of the mounting bracket 26 by bolts, the storage tube 29 is installed inside the mounting bracket 26 by clamps, and the ends of the two perforated plates 28 are fixed to the rods of the electric push rods 27 by screws.

[0027] See attached document Figure 1 , Figure 7 and Figure 8The two ends of the swing arm 11 are respectively fixed with a bearing shell 12 and a transmission pipe 17 by screws. The middle of the bearing shell 12 supports the rotating arm 13 by a bearing. The bottom of the rotating arm 13 is connected to a cleaning agent delivery pipe 14 for delivering cleaning agent through a rotary joint. The inlet of the cleaning agent delivery pipe 14 is connected to a solenoid valve, a drug delivery pump and a drug tank in sequence. The solenoid valve, drug delivery pump and drug tank are all located in the chassis below the housing 1. When the first cleaning mode is started, the transmission tube 17 rotates to provide rotational force. The transmission tube 17 drives the rotating arm 13 to rotate on the bearing shell 12, and the outer side of the threaded cleaning rod 16 removes the attached substances from the inner wall of the feeding channel. When the second cleaning mode is activated, the solenoid valve opens, and the delivery pump draws the cleaning agent stored in the agent tank and pumps it into the rotating arm 13 until it is sprayed along the spray hole 15 into the inside of the feeding channel to clean the adhering substances on the inner wall of the feeding channel.

[0028] In this embodiment, epoxy triacetate or XM665T ionic surfactant is selected as the cleaning agent. The cleaning agent is mixed with tap water at a volume ratio of 1:3, and the temperature is controlled within the range of 30℃ to 45℃. The mixture is then stored in a reagent tank.

[0029] See attached document Figure 7 , Figure 8 and Figure 9 The top of the support shaft 7 is fixed with a protective shell 9 and a rotary motor 10 connected to the inside of the protective shell 9 by screws. The rotary motor 10 is connected to the rotating arm 13 in a transmission connection. When the rotary motor 10 starts, it drives the rotary arm 13, the thread cleaning rod 16 and the telescopic column 19 to rotate, giving the rotary arm 13 and the telescopic column 19 the first degree of freedom along the axial direction of the thread cleaning rod 16.

[0030] See attached document Figure 7 , Figure 8 and Figure 11 The second lifting cylinder 31 has a cylinder rod connected in sequence to a support frame 5, a brake motor 6, and a support shaft 7 connected to the swing arm 11. The brake motor 6 and the support shaft 7 are used to rotate the swing arm 11. When the brake motor 6 starts, the swing arm 11 rotates forward by a specified angle, driving the rotating arm 13 to move to a position vertically opposite the feeding channel, or the swing arm 11 rotates backward by a specified angle, driving the rotating arm 13 to move to a position vertically offset from the feeding channel.

[0031] As an optional embodiment, the upper and lower sides of the support frame 5 are respectively fixedly connected to the cylinder rod of the second lifting cylinder 31 and the bottom of the brake motor 6 by bolts. The output end of the brake motor 6 is connected to the bottom of the support shaft 7 through a coupling, and the top of the support shaft 7 is connected to the swing arm 11 through the protective shell 9 and the transmission tube 17. The transmission tube 17 is fitted with a guide tube 8 that is fixedly connected to the housing 1 by screws. The guide tube 8 is used to straighten the transmission tube 17 and keep the transmission tube 17 and the support shaft 7 coaxial.

[0032] See attached document Figure 7 , Figure 9 and Figure 10 The telescopic column 19 is connected to a rubber band 18 and a rotating disk 21 at both ends. A cleaning component 22 is attached to the side of the rotating disk 21. The rubber band 18, telescopic column 19, rotating disk 21 and cleaning component 22 are arranged sequentially along the axial direction of the spray hole 15. When the second cleaning mode is activated, the cleaning agent enters the inner cavity of the rotating arm 13. Since the telescopic column 19 has a spiral groove 20 that is spaced apart from the rotating disk 21 on its outer side, the cleaning agent enters the spray hole 15 along the spiral groove 20. When the cleaning agent flows inside the rotating arm 13, the telescopic column 19 extends partly out of the spray hole 15 under the pushing force of the cleaning agent in the spiral groove 20 to stretch the rubber band 18, so that the cleaning agent is sprayed into the feeding channel along the spray hole 15. Ten blades 23 are arranged in a circumferential array on the side of the rotating disk 21 near the rubber band 18. The blades 23 are driven by the cleaning agent to rotate the rotating disk 21 and the cleaning component 22, so that the rotating disk 21 and the cleaning component 22 have a second degree of freedom along the axis of the spray hole 15, and can perform rotational cleaning with two degrees of freedom.

[0033] As an optional embodiment, the telescopic column 19 is connected to the rotating disk 21 by a rotating shaft. The cleaning component 22 is made of wear-resistant nylon wire and is attached to the side of the rotating disk 21. When rotating in two degrees of freedom, the cleaning component 22 extends to the inner wall of the feeding channel under the action of centrifugal force, which can remove the attached substances on the inner wall of the feeding channel and achieve different degrees of carbon black cleaning in two modes, so as to speed up the cleaning rhythm of the entire detection process.

[0034] After cleaning, the external drainage pipe of the bearing shell 12 is located inside the feeding channel to collect wastewater and prevent wastewater from flowing onto the electrode structure.

[0035] This embodiment also provides an oxygen, nitrogen, and hydrogen metal detection system, which is connected to the outlet of the gas detection tube 30 and is used to detect the oxygen, nitrogen, and hydrogen content in the gas, including the following components: The computer is used to control the operation of the entire system. The first lifting cylinder 2, the second lifting cylinder 31, the brake motor 6, the rotary motor 10, the drug delivery pump, the solenoid valve, the electric push rod 27, and the electric valve of the gas detection tube 30 are all electrically connected to the computer. Among them, the brake motor 6 and the rotary motor 10 can both be YEJ three-phase asynchronous motors. It also includes those electrically connected to the computer: The power control module is electrically connected to both the lower electrode 4 and the upper electrode 25. During the melting process, the power control module controls the heating power of the lower electrode 4 and the upper electrode 25. The converter is used to receive nitrogen, hydrogen, carbon monoxide and impurity gases discharged from the gas detection tube 30. The converter has a built-in catalyst, which can be a precious metal catalyst such as platinum, palladium, or rhodium, so that carbon monoxide is oxidized to carbon dioxide and hydrogen is oxidized to water vapor under the action of the catalyst. After the gas detection tube 30 is closed, sufficient helium gas is introduced into the converter to extrude carbon dioxide and nitrogen. The infrared hydrogen measurement module is used to absorb water vapor in the converter. When the valve at the bottom of the converter is opened, water vapor, carbon dioxide and nitrogen flow into the infrared hydrogen measurement module under the compression of helium. The infrared hydrogen measurement module absorbs and measures the water vapor content, and the hydrogen content is obtained based on the water vapor content. The infrared oxygen measurement module is used to detect the carbon dioxide content in the converter. After the output signal of the infrared hydrogen measurement module stabilizes, the valve at the bottom of the infrared hydrogen measurement module is opened. Carbon dioxide and nitrogen flow into the infrared oxygen measurement module under the compression of helium. The carbon dioxide concentration is quantitatively calculated by measuring the absorption intensity of infrared light of a specified wavelength (e.g., 4.26μm wavelength). The oxygen content detection result is obtained based on the carbon dioxide concentration. The carbon dioxide absorption module is connected to the bottom valve of the infrared oxygen measurement module. When the output signal of the infrared hydrogen measurement module is stable, the bottom valve of the infrared oxygen measurement module is opened, and the remaining gas inside the infrared oxygen measurement module is introduced into the carbon dioxide absorption module. The monoethanolamine inside the carbon dioxide absorption module absorbs the carbon dioxide in the remaining gas. The thermal conductivity nitrogen measurement module is used to detect the carbon dioxide content in the converter. The gas filtered by the carbon dioxide absorption module is introduced into the thermal conductivity nitrogen measurement module under the action of helium. The thermal conductivity nitrogen measurement module generates the resistance change based on the difference in thermal conductivity between nitrogen and carbon dioxide, and obtains the nitrogen content detection result based on the resistance change. The protective gas control module stores helium as a protective gas. During testing, the outlet valve of the protective gas control module opens, allowing helium to be introduced into the conversion furnace.

[0036] As an optional embodiment, the gas filtered by the carbon dioxide absorption module is dried before being passed into the thermal conductivity nitrogen measurement module.

[0037] Example 2: like Figures 12-13 As shown, a method for detecting oxygen, nitrogen, and hydrogen metals, using an oxygen, nitrogen, and hydrogen metal detection system as provided in Example 1, includes the following steps: Melting treatment: Place the sample between the closed lower electrode 4 and upper electrode 25, set the heating power of the lower electrode 4 and upper electrode 25, turn on the lower electrode 4 and upper electrode 25 to heat the sample to the set temperature range, so that the oxygen, nitrogen and hydrogen components in the sample are vaporized to form gas. Catalytic reaction: The gas discharged from the lower electrode 4 and the upper electrode 25 through the gas detection tube 30 is received by the converter. Under the action of the catalyst built into the converter, carbon monoxide is oxidized to carbon dioxide and hydrogen is oxidized to water vapor. First test: When the bottom valve of the converter is opened, water vapor, carbon dioxide and nitrogen flow into the infrared hydrogen measurement module under the compression of helium. The infrared hydrogen measurement module absorbs and measures the water vapor content, and the hydrogen content is obtained based on the water vapor content. Second test: After the output signal of the infrared hydrogen measurement module stabilizes, the valve at the bottom of the infrared hydrogen measurement module is opened. Carbon dioxide and nitrogen flow into the infrared oxygen measurement module under the compression of helium. The carbon dioxide concentration is quantitatively calculated by measuring the absorption intensity of infrared light of a specified wavelength. The oxygen content detection result is obtained based on the carbon dioxide concentration. Filtration: After the output signal of the infrared oxygen measurement module stabilizes, the valve at the bottom of the infrared oxygen measurement module opens, and the remaining gas inside the infrared oxygen measurement module is introduced into the carbon dioxide absorption module. The monoethanolamine inside the carbon dioxide absorption module absorbs the carbon dioxide in the remaining gas. The third test: The gas filtered by the carbon dioxide absorption module is passed into the thermal conductivity nitrogen measurement module under the action of helium. The thermal conductivity nitrogen measurement module generates a resistance change based on the difference in thermal conductivity between nitrogen and carbon dioxide, and obtains the nitrogen content detection result based on the resistance change.

[0038] This embodiment also provides an electronic device, see [link to documentation]. Figure 13 ,include: At least one processor; and memory that is communicatively connected to at least one processor; The memory stores a computer program that can be executed by at least one processor, which enables the at least one processor to perform the oxygen, nitrogen, and hydrogen metal detection method.

[0039] The processors in the aforementioned electronic devices can be of various types, such as CPUs, GPUs, or TPUs, to adapt to different computing needs and ensure efficient processing of multidimensional and complex data. The memory can be of various types, such as RAM, ROM, or SSDs, to store large amounts of data, support fast read and write operations, and ensure stable system operation. In addition, the electronic devices are equipped with high-precision sensors to monitor environmental changes in real time, ensuring the accuracy and timeliness of data acquisition, as well as arithmetic units, input devices, and output devices. The arithmetic unit can be an FPGA or ASIC, responsible for high-speed parallel computing. Input devices such as keyboards and touch screens facilitate operation, while output devices such as displays and printers intuitively display the results. The entire system works in tandem to improve the response speed and decision support capabilities of the oxygen, nitrogen, and hydrogen metal detection methods.

[0040] The above description is merely an optional embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An oxygen, nitrogen, and hydrogen metal analyzer, comprising a housing (1), wherein a first lifting cylinder (2), a second lifting cylinder (31), a material loading mechanism connected to the first lifting cylinder (2), a rotating mechanism connected to the second lifting cylinder (31), an upper electrode (25), a furnace head (24), and a gas detection tube (30) connected to the furnace head (24) are arranged vertically in sequence on the side of the housing (1), wherein the furnace head (24) is provided with a material feeding channel connected to the gas detection tube (30), and after the sample is melted, the gas inside the furnace head (24) is introduced into the gas detection tube (30) for detection, characterized in that, Also includes: The swing arm (11) connected to the rotating mechanism has a rotating arm (13) at one end away from the rotating mechanism, a spray hole (15) located outside the rotating arm (13), a retractable cleaning assembly passing through the spray hole (15), and a threaded cleaning rod (16) connected to the top of the rotating arm (13). The retractable cleaning assembly includes a rubber band (18), a telescopic column (19), a rotating disk (21), and a cleaning component (22) connected sequentially along the axial direction of the spray hole (15). The telescopic column (19) has a spiral groove (20) spaced apart from the rotating disk (21) on its outer side. The rotating disk (21) has multiple blades (23) arranged in a circumferential array on the side near the rubber band (18). Before inspection, the rotating mechanism provides rotational power, and the rotating arm (13) and the thread cleaning rod (16) rotate in the feeding channel to clean the attached material; After the inspection, the rotating arm (13) is used to circulate the cleaning agent on the inner wall of the feeding channel, and the retractable cleaning component is driven by the cleaning agent to perform two degrees of freedom of rotational cleaning.

2. The oxygen, nitrogen, and hydrogen metal analyzer according to claim 1, characterized in that: The rotating arm (13) is provided with a bearing shell (12) and a transmission pipe (17) on the outside, and the bottom of the rotating arm (13) is rotatably connected to a cleaning agent delivery pipe (14) for delivering cleaning agent. When the transmission tube (17) rotates, the transmission tube (17) drives the rotating arm (13) to rotate on the bearing shell (12), and the outer side of the threaded cleaning rod (16) removes the attached substances from the inner wall of the feeding channel.

3. The oxygen, nitrogen, and hydrogen metal analyzer according to claim 1, characterized in that: The material loading mechanism includes an insulating base (3) and a lower electrode (4) that are sequentially connected to the cylinder rod of the first lifting cylinder (2). When the thread cleaning rod (16) enters the feeding channel, the first lifting cylinder (2) cylinder rod drives the insulating base (3) to descend, preventing the lower electrode (4) from obstructing the flow of cleaning agent.

4. The oxygen, nitrogen, and hydrogen metal analyzer according to claim 1, characterized in that: The rotating mechanism includes a support frame (5) connected in sequence to the cylinder rod of the second lifting cylinder (31), a brake motor (6), and a support shaft (7) connected to the swing arm (11). The brake motor (6) and the support shaft (7) are used to rotate the swing arm (11). When the brake motor (6) is started, the swing arm (11) drives the rotating arm (13) to move, so that the rotating arm (13) is opposite to the position of the feeding channel.

5. The oxygen, nitrogen, and hydrogen metal analyzer according to claim 4, characterized in that: The top of the support shaft (7) is provided with a protective shell (9) and a rotary motor (10) connected to the inside of the protective shell (9). The rotary motor (10) is connected to the rotating arm (13) in a transmission connection. When the rotary motor (10) is started, the rotary arm (13) drives the threaded cleaning rod (16) and the retractable cleaning assembly to rotate.

6. The oxygen, nitrogen, and hydrogen metal analyzer according to claim 5, characterized in that: The furnace head (24) is provided with a mounting bracket (26) connected to the upper electrode (25), a feeding hole located inside the mounting bracket (26), two electric push rods (27) fixed at intervals on one side of the mounting bracket (26), and a storage tube (29). The rods of the two electric push rods (27) extend into the mounting bracket (26) and the rods are fixed with perforated plates (28). Before testing, the two electric push rods (27) retract until the holes of the two perforated plates (28) coincide with the discharge hole and the storage pipe (29) to form a feeding channel.

7. An oxygen, nitrogen, and hydrogen metal detection system for controlling the oxygen, nitrogen, and hydrogen metal analyzer as described in any one of claims 1-6, characterized in that, It also includes computers and those electrically connected to them: A power control module is electrically connected to the electrode structure. During the melting process, the power control module controls the heating power of the electrode structure. A converter is used to receive the gas discharged from the gas detection tube (30). The converter is equipped with a catalyst for gas catalytic oxidation reaction to form water vapor and converted gas. An infrared hydrogen detection module is used to absorb and measure water vapor content, and the computer obtains the hydrogen content detection result based on the water vapor content. The infrared oxygen measurement module is used to obtain the absorption intensity of carbon dioxide when the detection data of the infrared hydrogen measurement module tends to stabilize. The computer quantitatively calculates the carbon dioxide concentration and obtains the oxygen content detection result based on the carbon dioxide concentration. A carbon dioxide absorption module, wherein the carbon dioxide absorption module is used to absorb carbon dioxide from the residual gas in the infrared oxygen measurement module; The gas filtered by the carbon dioxide absorption module is passed into the thermal conductivity nitrogen measurement module, which generates a change in thermal conductivity. The computer obtains the nitrogen content detection result based on the change in thermal conductivity.

8. A method for detecting oxygen, nitrogen, and hydrogen metals, using the oxygen, nitrogen, and hydrogen metal detection system as described in claim 7, characterized in that, Includes the following steps: Melting treatment: The sample is placed in a closed electrode structure, the heating power of the electrode structure is set, the electrode structure is energized, and the sample is heated to the set temperature range, so that the oxygen, nitrogen and hydrogen components in the sample are vaporized to form gas. Catalytic reaction: The gas discharged from the electrode structure along the gas detection tube (30) in the converter is converted into water vapor and converted gas under the action of the catalyst built into the converter; First test: When the valve at the bottom of the converter is opened, water vapor and conversion gas flow into the infrared hydrogen measurement module under the compression of helium. The infrared hydrogen measurement module absorbs and measures the water vapor content, and the computer obtains the hydrogen content detection result based on the water vapor content. Second detection: After the output signal of the infrared hydrogen measurement module stabilizes, the valve at the bottom of the infrared hydrogen measurement module is opened. The gas detected by the infrared hydrogen measurement module flows into the infrared oxygen measurement module under the compression of helium. The infrared oxygen measurement module obtains the absorption intensity of carbon dioxide, the computer quantitatively calculates the carbon dioxide concentration, and the oxygen content detection result is obtained based on the carbon dioxide concentration. Filtration: After the output signal of the infrared oxygen measurement module stabilizes, the valve at the bottom of the infrared oxygen measurement module opens, and the remaining gas inside the infrared oxygen measurement module is introduced into the carbon dioxide absorption module, which absorbs the carbon dioxide in the remaining gas. The third test: The gas filtered by the carbon dioxide absorption module is passed into the thermal conductivity nitrogen measurement module under the action of helium. The thermal conductivity nitrogen measurement module generates a change in resistance based on the difference in thermal conductivity between nitrogen and carbon dioxide. The computer obtains the nitrogen content detection result based on the change in resistance.

9. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the oxygen, nitrogen, and hydrogen metal detection method according to claim 8.

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