A high temperature resistant alloy sampling process and equipment

Abstract

The present invention provides a high-temperature resistant alloy sampling process and equipment, which relates to the field of detection sampling technology and includes the following steps: S1, continuously pumping protective gas into two sampling tubes through a gas control device. After pumping the protective gas for a predetermined time, controlling the sampling tubes to be relatively closed and placing the sampling tubes below the surface of the molten high-temperature resistant alloy; S2, controlling the first sampling tube to be in a conducting state, reversely pumping the protective gas in the sampling tube through the gas control device to achieve a single sampling of the molten high-temperature resistant alloy; S3, controlling the second sampling tube to be in a conducting state, continuing to pump protective gas into the second sampling tube, and using the airflow to blow out the pre-loaded tempered powder and mix it with the high-temperature resistant alloy. The invention can better protect the sampled high-temperature resistant alloy, realize the one-time addition of materials and multiple sampling, and further improve the sampling efficiency of the high-temperature resistant alloy.

Description

Technical Field

[0001] The present application relates to the field of detection sampling, and in particular to a high-temperature resistant alloy sampling process and equipment. Background Art

[0002] Nickel-based high-temperature resistant alloys include GH163, GH3128, GH4033, etc. Nickel-based high-temperature resistant alloys have good high-temperature resistance and corrosion resistance and are important metal materials for aerospace engine-related components.

[0003] Taking GH163 nickel-based high-temperature resistant alloy as an example, at the end of the smelting process, rare metal powder will be added into the furnace body to improve the density and uniformity of GH163 high-temperature resistant alloy, thereby further improving the corrosion resistance and mechanical properties of the alloy. The high-temperature resistant alloy needs to be sampled and tested before and after the addition of rare metal powder to determine the addition time and mixing effect.

[0004] The most traditional sampling structure is to manually use a container with a long rod to extend into the furnace body for sampling, which is inefficient and has a high temperature environment and a safety hazard.

[0005] In patent document CN113155531B, an automatic sampling structure can simultaneously realize the pumping of protective gas, the addition of materials and the sampling of high-temperature resistant technology, replacing the traditional manual sampling method, improving the sampling efficiency and the safety of sampling; however, due to the structure of the sampling device and the sampling process, it is necessary to use different sampling devices for multiple samplings in succession during the test to obtain samples before and after the addition of materials and in different areas. The sampling efficiency is still limited. At the same time, the bottom of the traditional vertical sampling structure is open downward, and the sprayed protective gas is difficult to form an isolation barrier at the bottom, making it difficult to prevent the oxidation of the sampled sample, affecting the test results. Summary of the Invention

[0006] In view of the above problems, embodiments of the present application are proposed to provide a high-temperature resistant alloy sampling process and equipment.

[0007] In response to the above problems, the present invention provides a high-temperature resistant alloy sampling process and equipment, which can better protect the sampled high-temperature resistant alloy, realize material addition and multiple sampling in one go, and further improve the sampling efficiency of high-temperature resistant alloys.

[0008] In order to solve the above problems, the technical solution adopted by the present invention is:

[0009] A high-temperature alloy sampling process uses a high-temperature alloy sampling device, the high-temperature alloy sampling device includes a positioning platform, a sampling tube located at the lower end of the positioning platform and a gas control device, at least two sampling tubes are provided, the sampling tube is U-shaped, including a vertically arranged feed tube with a feed port and a horizontally arranged storage tube, the first end of the storage tube is connected to the feed tube, and the second end is connected to the gas control device, the inner wall of the feed tube is sealed and movably connected with a sealing tube, and the side wall of the sealing tube is provided with a conducting opening; the process includes the following steps: S1, continuously pumping protective gas into the two sampling tubes through the gas control device, and pumping protective gas into the two sampling tubes. After the protective gas is supplied for a predetermined time, the sampling tube is controlled to be relatively closed and the sampling tube is placed below the liquid surface of the molten high-temperature resistant alloy; S2, the first sampling tube is controlled to be in a conducting state, and the protective gas in the sampling tube is reversely pumped through the gas control device to achieve one-time sampling of the molten high-temperature resistant alloy. After one sampling is completed, the first sampling tube is closed; S3, the second sampling tube is controlled to be in a conducting state, and the protective gas is continued to be pumped into the second sampling tube. The pre-loaded tempered powder is blown out by the airflow and mixed with the high-temperature resistant alloy. After mixing for a predetermined time, the protective gas in the sampling tube is reversely pumped to achieve secondary sampling of the molten high-temperature resistant alloy.

[0010] Preferably, the second sampling tube is first controlled to be above the liquid surface to blow out the tempered powder, and then the second sampling tube is controlled to be below the liquid surface to achieve secondary sampling.

[0011] Preferably, the second sampling tube is located above the liquid surface and controls the positioning platform to deflect back and forth around the vertical axis during the process of blowing out the tempered powder.

[0012] Preferably, a protective device adapted to the feed port is also provided on the outside of the sampling tube. During the descent of the sampling tube, the protective device is controlled to overlap with the feed port to prevent impurities from entering the feed port. During the sampling process, the protective device is controlled to be staggered with the feed port to allow the molten high-temperature resistant alloy to pass through.

[0013] A high-temperature resistant alloy sampling device includes a positioning platform, a sampling tube located at the lower end of the positioning platform, and a gas control device. At least two sampling tubes are provided, and the sampling tube is U-shaped, including a vertically arranged feed tube with a feed port and a horizontally arranged storage tube. The first end of the storage tube is connected to the feed tube, and the second end is connected to the gas control device. The inner wall of the feed tube is sealed and movably connected to a sealing tube, and a conducting opening is opened on the side wall of the sealing tube. The gas control device includes a positioning tube, and the interior of the positioning tube is sealed and rotatably connected to a control block. A gas control channel is formed inside the control block, and the first end of the gas control channel is connected to a gas pipeline. The sampling tube also includes a vertical buffer tube, and the first end of the buffer tube is connected to the storage tube. The second end of the buffer tube is located on the deflection path of the second end of the gas control channel.

[0014] Preferably, the gas pipeline includes a first gas pipeline that passes through the positioning platform and is sealed and rotatably connected thereto, the first gas pipeline is connected to a driving assembly, and the upper end of the first gas pipeline is connected to a relatively fixed second gas pipeline.

[0015] Preferably, a protective device adapted to the feed port is also provided on the outside of the sampling tube, and the protective device includes a protective ring sleeved on the outside of multiple sampling tubes, a lifting assembly is provided at the upper end of the protective ring, and a plurality of baffles are provided at the lower end, and the baffles are opposite to the corresponding sampling tubes.

[0016] Preferably, the inner wall of the baffle is adapted to the feed pipe in an arc shape, the baffle extends in a vertical direction, a diversion opening is opened on the side wall of the baffle, and the inner wall of the lower end of the diversion opening is inclined toward the outside.

[0017] Preferably, the lifting assembly includes a guide rod passing through the positioning platform, the first end of the guide rod is fixedly connected to the protective ring, the second end of the guide rod is fixed with a positioning plate, and a telescopic structure is provided between the positioning plate and the positioning platform.

[0018] Preferably, there is a shortest positioning distance between the diversion opening and the protective ring, the multiple positioning distances are different, and the difference between each positioning distance is greater than the diameter of the diversion opening.

[0019] The beneficial effects of the present invention are:

[0020] Compared with the existing technology, the above-mentioned structural design can efficiently sample different areas or alloys before and after material addition at one time, without the need to use different sampling devices multiple times, which greatly improves the sampling efficiency; the U-shaped sampling tube can better store the sampled high-temperature resistant alloy, and at the same time can control the continuous outflow of protective gas, which can better protect the sampled high-temperature resistant alloy, avoid oxidation of the sampled sample, and ensure the accuracy of sampling and detection; the sampling tube here can also store more powdered additives, and by controlling the spraying of protective gas, the powdered additives can be continuously sprayed out, realizing material addition and multiple sampling at one time, further improving the sampling efficiency of high-temperature resistant alloys. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 For the present invention Figure 1Schematic diagram of the upward-looking structure.

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the main structure.

[0025] Figure 4 For the present invention Figure 2 AA section structural diagram.

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B.

[0027] Figure 6 For the present invention Figure 4 Enlarged structural diagram at C.

[0028] Figure 7 Schematic diagram of the protective device structure of the present invention.

[0029] Figure 8 For the present invention Figure 7 The enlarged structural diagram at D is shown.

[0030] In the figure: 100, positioning platform; 110, positioning plate; 120, positioning rod; 130, positioning ring; 200, sampling tube; 210, storage tube; 220, buffer tube; 230, feed pipe; 231, feed port; 240, sealing tube; 241, conducting opening; 300, gas control device; 310, second gas pipeline; 320, first gas pipeline; 330, positioning tube; 340, control block; 341, gas control channel; 400, protective device; 410, positioning plate; 420, guide rod; 430, protective ring; 440, baffle; 441, diversion opening. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] In order to solve the technical problems mentioned in the background technology, Figure 1 -Attached Figure 8A high-temperature alloy sampling process uses a new type of high-temperature alloy sampling equipment. The high-temperature alloy sampling equipment includes a positioning platform 100, a sampling tube 200 located at the lower end of the positioning platform 100, and a gas control device 300. The sampling tube 200 is used to sample and contain the molten high-temperature alloy, and the gas control device 300 can control the pumping and extraction of the protective gas; the material of the sampling tube 200 is selected according to the melting point of the high-temperature alloy, and can be made of existing ceramic, quartz or high-temperature metal materials.

[0033] As a new improvement scheme, at least two sampling tubes 200 are provided. According to the sampling requirements of the test, multiple sampling tubes 200 can be designed. The sampling tube 200 is U-shaped. The U-shaped sampling tube 200 can better sample and store the molten high-temperature resistant alloy, especially after sampling, the molten high-temperature resistant alloy can be better stored. The high-temperature resistant alloy in the stored state can be better in a protective environment filled with protective gas, avoiding oxidation and causing deviations in the test results.

[0034] Specifically, the sampling tube 200 includes a vertically arranged feed tube 230 with a feed port 231 and a horizontally arranged storage tube 210. The first end of the storage tube 210 is connected to the feed tube 230, and the second end is connected to the gas control device 300. Before sampling, protective gas is continuously pumped into the sampling tube 200 through the gas control device 300, and the protective gas is finally continuously ejected from the feed port 231, which can maintain a relatively high-pressure environment in the sampling tube 200 and prevent the sampled high-temperature resistant alloy from being oxidized due to the entry of air.

[0035] During the sampling process, the feed port 231 is controlled to be below the surface of the molten metal, and the sampling tube 200 is controlled to be in a negative pressure state through the gas control device 300. Under the dual effects of pressure and gravity, the molten high-temperature resistant alloy passes through the feed port 231 and finally flows into the storage tube 210 for storage.

[0036] After the sampling is completed, the protective gas is continued to be pumped into the sampling tube 200 through the gas control device 300, which can prevent the oxygen in the environment from entering the storage tube 210 from the feed port 231 and mixing with the sampled high-temperature resistant alloy, thereby preventing the sampled high-temperature resistant alloy from being oxidized and ensuring the accuracy of the sampling results.

[0037] It should be noted that during the sampling process, the amount of sampling needs to be controlled. The amount of sampled high-temperature resistant alloy should be less than the volume in the storage tube 210 to avoid the high-temperature resistant alloy completely blocking the storage tube 210 and causing the protective gas to be unable to flow and discharge normally; for example, the sampled high-temperature resistant alloy occupies half of the volume of the storage tube 210, and the sampled high-temperature resistant alloy is located at the bottom of the storage tube 210. The protective gas can be continuously blown outward from the upper end gap to achieve normal flow of the protective gas.

[0038] The powdered additives that need to be added can be placed in the storage tube 210 in advance. During the addition process, the protective gas is controlled to spray gas toward the feed port 231 to form an airflow, and the powdered additives are sprayed out and mixed with the molten high-temperature resistant alloy through the airflow, thereby realizing rapid addition of materials. Compared with the existing storage structure, the storage tube 210 has a larger storage range and can be effectively separated from the high-temperature resistant alloy before spraying, thereby avoiding premature mixing that affects the sampling process.

[0039] At the same time, it is also necessary to note that after sampling, the storage tube 210 should be kept in a relatively horizontal state to prevent the molten high-temperature resistant alloy from flowing left and right in the storage tube 210 and causing local blockage; or a larger accommodating area should be set on both sides of the storage tube 210 to accommodate the high-temperature resistant alloy to prevent the molten high-temperature resistant alloy from being concentrated and blocked at one end and affecting the normal discharge of the protective gas.

[0040] The storage tube 210 here can be made of disposable materials. After sampling is completed, the storage tube 210 is destroyed, and then the sampled high-temperature resistant alloy is taken out. The high-temperature resistant alloy here can be in a molten state or a solid state; it can also be made of a reusable material. By adjusting the inclination of the storage tube 210, the high-temperature resistant alloy in the molten state can be taken out.

[0041] A sealing tube 240 is movably connected to the inner wall of the feed tube 230, and the feed port 231 can be closed by the sealing tube 240 to prevent the molten high-temperature resistant alloy from flowing into the feed port 231. A conducting opening 241 is provided on the side wall of the sealing tube 240, and the conducting opening 241 can be controlled to be opposite to the feed port 231 by rotating the sealing tube 240. The molten high-temperature resistant alloy can pass through the feed port 231 and the conducting opening 241 in turn and finally flow into the storage tube 210 for sampling and storage; before sampling or after sampling, the position of the sealing tube 240 can be rotated or slid to make the conducting opening 241 completely staggered with the feed port 231, so that the outer wall of the sealing tube 240 is opposite to the feed port 231, thereby preventing the entry of external molten high-temperature resistant alloy or impurities.

[0042] In summary, through the above-mentioned structural design, different areas or alloys before and after material addition can be efficiently sampled at one time, without the need to use different sampling devices multiple times, which greatly improves the sampling efficiency; the U-shaped sampling tube 200 can better store the sampled high-temperature resistant alloy, and at the same time can control the continuous outflow of protective gas, which can better protect the sampled high-temperature resistant alloy, avoid oxidation of the sampled sample, and ensure the accuracy of sampling detection; the sampling tube 200 here can also store more powder added materials, and by controlling the spraying of protective gas, the powder added material can be continuously sprayed out, realizing the one-time material addition and sampling, further improving the sampling efficiency of high-temperature resistant alloys.

[0043] Specifically, the gas control device 300 includes a positioning tube 330, which is sealed and rotatably connected to a control block 340 inside the positioning tube 330. A gas control channel 341 is formed inside the control block 340. The first end of the gas control channel 341 is connected to a gas pipeline, and protective gas is extracted or pumped in through the gas pipeline. The sampling tube 200 also includes a vertical buffer tube 220. The first end of the buffer tube 220 is connected to the storage tube 210, and the second end of the buffer tube 220 is located on the deflection path of the second end of the gas control channel 341. The driving control block 340 is deflected to different positions, so that the gas control channel 341 is opposite to the second ends of different buffer tubes 220, which can realize gas bandpass and can be opposite to the corresponding sampling tube 200 to realize flow control of the protective gas. Through the above structural design, only one set of gas control devices 300 is needed to complete the gas control of multiple groups of sampling tubes 200, which simplifies the internal structure and improves the control effect.

[0044] The gas pipeline includes a first gas pipeline 320 that passes through the positioning platform 100 and is sealed and rotatably connected thereto. The first gas pipeline 320 is connected to a driving component. The upper end of the first gas pipeline 320 is connected to a relatively fixed second gas pipeline 310. The driving component can control the first gas pipeline 320 to deflect by a predetermined angle. The first gas pipeline 320 is fixedly connected to the control block 340, and the gas control channel 341 of the control block 340 can be adjusted to be relative to different buffer tubes 220 to achieve flow control; the second gas pipeline 310 is located in a relatively constant position to achieve conduction control of the airflow, and a rotating sealing connector is provided between the second gas pipeline 310 and the first gas pipeline 320 to prevent gas overflow during the rotation of the first gas pipeline 320.

[0045] A protective device 400 adapted to the feed port 231 is also provided on the outside of the sampling tube 200. During the descent of the sampling tube 200, the protective device 400 is controlled to overlap with the feed port 231 to prevent impurities from entering the feed port 231. During the sampling process, the protective device 400 is controlled to be staggered with the feed port 231 to allow the molten high-temperature resistant alloy to pass through. The protective device 400 here can form a double protection structure with the inner control block 340 on both sides of the feed port 231, further preventing the molten alloy and impurities on the outside from entering and being retained in the feed port 231, thereby further ensuring the accuracy of the sampling results.

[0046] Specifically, the protective device 400 includes a protective ring 430 that is sleeved on the outside of multiple sampling tubes 200. A lifting component is provided at the upper end of the protective ring 430. The lifting component can control the protective ring 430 to move up and down along the length direction of the feed tube 230 to achieve position control. A number of baffles 440 are provided at the lower end of the protective ring 430. The baffles 440 are opposite to the corresponding sampling tubes 200. The baffles 440 are controlled to descend by the lifting component. The baffles 440 can overlap with the feed port 231 to block the feed port 231 and achieve the closure of the outer layer to prevent the entry of molten high-temperature alloy, especially impurities.

[0047] Preferably, the inner wall of the baffle 440 is adapted to the feed pipe 230 into an arc shape, and the baffle 440 extends in the vertical direction. By designing the inner wall of the baffle 440 to be an arc shape, it can fit more closely with the arc-shaped outer wall of the feed pipe 230, extend the sealing area, and enhance the sealing effect. A guide opening 441 is opened on the side wall of the baffle 440, and the inner wall of the lower end of the guide opening 441 is inclined toward the outside. By controlling the guide opening 441 to overlap with the feed port 231, the molten high-temperature resistant alloy can pass through to achieve sampling; the two are controlled to be staggered, and the inner wall of the baffle 440 is controlled to overlap with the feed port 231 to achieve closed control.

[0048] At the same time, the inner wall of the lower end of the guide opening 441 is inclined toward the outside, specifically toward the lower side, which can avoid the residue of impurities to the greatest extent and further ensure the purity of subsequent sampling samples.

[0049] By providing an annular protective ring 430 and a baffle 440, a protective limiting structure can also be formed on the outside of multiple sampling tubes 200. Here, the feed tube 230 can guide and limit the baffle 440, and the baffle 440 can constrain and limit the feed tube 230 to ensure stability during the sampling process.

[0050] Specifically, the lifting assembly includes a guide rod 420 that passes through the positioning platform 100. The first end of the guide rod 420 is fixedly connected to the protective ring 430. The second end of the guide rod 420 is fixed with a positioning plate 410. A telescopic structure is provided between the positioning plate 410 and the positioning platform 100. The telescopic structure can be selected as a pneumatic rod or a hydraulic telescopic rod. During the telescopic process, it can drive the positioning plate 410 to move up and down, and finally drive the protective ring 430 and the baffle 440 below to move along the length direction of the feed pipe 230 to realize drive control.

[0051] The positioning platform 100 here includes a positioning ring 130, a positioning rod 120 and a positioning plate 110 arranged in sequence from top to bottom. The upper end of the positioning ring 130 is connected to a hoisting device or a lifting device to realize the drive control of the overall structure. The inner side of multiple positioning rods 120 can form a accommodating chamber to facilitate the installation of related structures. During the lifting and lowering control movement of the baffle 440, the positioning platform 100 is controlled to be in a relatively stable state to avoid shaking of the overall structure; by controlling the lifting and lowering of the positioning plate 110, the height between the sampling tube 200 and the liquid surface can be adjusted to realize sampling control.

[0052] Furthermore, there is a shortest positioning distance between the guide opening 441 and the protective ring 430, that is, the vertical height distance. The multiple positioning distances are different, and the difference between each positioning distance is greater than the diameter of the guide opening 441. Through the above-mentioned structural design, in the process of adjusting the downward movement of the protective ring 430, different guide openings 441 are controlled in turn to overlap with the corresponding feed ports 231 to achieve sampling of molten high-temperature resistant alloys or addition of powder materials. Only one set of protective rings 430 and one set of lifting components need to be set up to achieve synchronous control of multiple baffles 440, and at the same time, different sampling tubes 200 are controlled to be turned on in sequence, thereby realizing front and back sampling in different time periods or different areas, and meeting the control effect of multiple sampling.

[0053] The present invention is further described below in conjunction with a specific sampling process; the present invention specifically includes the following steps:

[0054] Step 1: Continuously pump protective gas into the two sampling tubes 200 through the gas control device 300. After the protective gas is pumped in for a predetermined time, the sampling tubes 200 are controlled to be relatively closed and the sampling tubes 200 are placed below the liquid surface of the molten high-temperature resistant alloy. By continuously pumping in the protective gas, the air in the sampling tubes 200 is completely discharged to prevent the subsequent sample from coming into contact with oxygen and being oxidized. The above-mentioned protective gas can be selected from common nitrogen or inert gas.

[0055] Step 2: Control the first sampling tube 200 to be in a conducting state, and reversely pump the protective gas in the sampling tube 200 through the gas control device 300 to achieve a single sampling of the molten high-temperature resistant alloy. Close the first sampling tube 200 after the single sampling is completed; the sampling tube 200 is in a negative pressure state through reverse pumping, and at the same time, the feed port 231 of the sampling tube 200 is located below the liquid surface. The molten high-temperature resistant alloy on the outside can pass through the feed port 231 and flow into the sampling tube 200 for collection and sampling. During the single sampling process, the amount of sample extraction needs to be controlled to avoid blockage caused by excessive sampling.

[0056] Step three, control the second sampling tube 200 to be in a conducting state, continue to pump protective gas into the second sampling tube 200, use the airflow to blow out the pre-filled tempered powder and mix it with the high-temperature resistant alloy, and after mixing for a predetermined time, reversely pump the protective gas in the sampling tube 200 to achieve secondary sampling of the molten high-temperature resistant alloy. The secondary sampling process is the same as the primary sampling process, both of which control the molten high-temperature resistant alloy to flow into the sampling tube 200 for collection and storage; through the above method, the molten high-temperature resistant metal before and after the addition of the tempered powder can be sampled at one time, which saves sampling time, improves the quality and efficiency of sampling, and ensures the accuracy of the test results.

[0057] First, the second sampling tube 200 is controlled to be located above the liquid surface to blow out the tempered powder, and then the second sampling tube 200 is controlled to be located below the liquid surface to realize secondary sampling. By blowing out the tempered powder above the liquid surface, the pressure outside the feed port 231 can be reduced, thereby preventing the molten high-temperature resistant alloy from flowing in prematurely, and the tempered powder can also be sprayed out more easily and evenly.

[0058] The tempering powder mentioned above can be selected as rare element powder, thereby further improving the corrosion resistance and mechanical properties of the alloy.

[0059] When the second sampling tube 200 is located above the liquid surface and blows out the tempered powder, the positioning platform 100 is controlled to deflect back and forth around the vertical axis. By spraying the adjusted powder in the above manner, the adjusted powder can be sprayed to different positions, so that the adjusted powder can be more evenly distributed to different positions in the furnace body, thereby accelerating the mixing of the materials. Combined with electromagnetic stirring, the mixing effect of the materials in the furnace body is accelerated, thereby shortening the smelting time.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-temperature resistant alloy sampling device, comprising a positioning platform (100), a sampling tube (200) located at the lower end of the positioning platform (100), and a gas control device (300), characterized in that: At least two sampling tubes (200) are provided. The sampling tubes (200) are U-shaped and include a vertically arranged feed tube (230) with a feed port (231) and a horizontally arranged storage tube (210). The first end of the storage tube (210) is connected to the feed tube (230), and the second end is connected to the gas control device (300). The inner wall of the feed tube (230) is sealed and movably connected to a sealing tube (240). The side wall of the sealing tube (240) is provided with a conducting opening (241). The gas control device (300) is provided with a sealing tube (240). 0) includes a positioning tube (330), wherein the positioning tube (330) is sealed and rotatably connected to a control block (340), a gas control channel (341) is formed inside the control block (340), and a first end of the gas control channel (341) is connected to a gas pipeline, and the sampling tube (200) further includes a vertical buffer tube (220), wherein a first end of the buffer tube (220) is connected to the storage tube (210), and a second end of the buffer tube (220) is located on a deflection path of the second end of the gas control channel (341); The gas pipeline comprises a first gas pipeline (320) that passes through the positioning platform (100) and is sealed and rotatably connected thereto, the first gas pipeline (320) is connected to a drive assembly, and the upper end of the first gas pipeline (320) is connected to a relatively fixed second gas pipeline (310); The driving assembly can control the first gas pipe to deflect to a predetermined angle. The first gas pipe is fixedly connected to the control block. The gas control channel of the control block is adjusted to be opposite to different buffer tubes to achieve flow control.

2. The high temperature resistant alloy sampling device according to claim 1, characterized in that: A protective device (400) adapted to the feed port (231) is further provided on the outside of the sampling tube (200), the protective device (400) comprising a protective ring (430) sleeved on the outside of the plurality of sampling tubes (200), a lifting assembly being provided on the upper end of the protective ring (430), and a plurality of baffles (440) being provided on the lower end, the baffles (440) being opposite to the corresponding sampling tubes (200).

3. The high temperature resistant alloy sampling device according to claim 2, characterized in that: The inner wall of the baffle (440) is adapted to be arc-shaped with the feed pipe (230), the baffle (440) extends in a vertical direction, a diversion opening (441) is provided on the side wall of the baffle (440), and the inner wall of the lower end of the diversion opening (441) is inclined toward the outside.

4. The high temperature resistant alloy sampling device according to claim 2, characterized in that: The lifting assembly comprises a guide rod (420) penetrating the positioning platform (100), a first end of the guide rod (420) being fixedly connected to a protective ring (430), a second end of the guide rod (420) being fixed with a positioning plate (410), and a telescopic structure being provided between the positioning plate (410) and the positioning platform (100).

5. The high temperature resistant alloy sampling device according to claim 3, characterized in that: There is a shortest positioning distance between the diversion opening (441) and the protective ring (430), the multiple positioning distances are different, and the difference between each positioning distance is greater than the diameter of the diversion opening (441).

6. A high-temperature alloy sampling process, using the high-temperature alloy sampling device according to any one of claims 1 to 5, The steps include: S1. Continuously pumping protective gas toward the two sampling tubes (200) through the gas control device (300). After the protective gas is pumped for a predetermined time, the sampling tubes (200) are controlled to be relatively closed and the sampling tubes (200) are placed below the surface of the molten high-temperature resistant alloy. S2, controlling the first sampling tube (200) to be in a conducting state, reversely pumping the protective gas in the sampling tube (200) through the gas control device (300), thereby achieving a single sampling of the molten high-temperature resistant alloy, and closing the first sampling tube (200) after the single sampling is completed; S3, controlling the second sampling tube (200) to be in a conducting state, continuing to pump the protective gas into the second sampling tube (200), using the airflow to blow out the pre-filled tempered powder and mix it with the high-temperature resistant alloy, and after mixing for a predetermined time, reversely pumping the protective gas in the sampling tube (200) to achieve secondary sampling of the molten high-temperature resistant alloy.

7. The high temperature resistant alloy sampling process according to claim 6, characterized in that: First, the second sampling tube (200) is controlled to be located above the liquid surface to blow out the tempered powder, and then the second sampling tube (200) is controlled to be located below the liquid surface to achieve secondary sampling.

8. The high temperature resistant alloy sampling process according to claim 7, characterized in that: The second sampling tube (200) is located above the liquid surface and controls the positioning platform (100) to deflect back and forth around the vertical axis during the process of blowing out the tempered powder.

9. The high temperature resistant alloy sampling process according to claim 6, characterized in that: During the descent of the sampling tube (200), the protective device (400) is controlled to overlap with the feed port (231) to prevent impurities from entering the feed port (231). During the sampling process, the protective device (400) is controlled to stagger with the feed port (231) to allow the molten high-temperature resistant alloy to pass through.

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