A trapping test system for gaseous metals

Abstract

This invention discloses a capture test system for gaseous metals, comprising a carrier gas supply device, an adsorption device, a tail gas treatment device, and a vacuum device connected in sequence by pipes; wherein, the adsorption device includes a heating mechanism and a gas generating mechanism, a static adsorption mechanism, and a dynamic adsorption mechanism connected in sequence, the heating mechanism heating the gas generating mechanism, the static adsorption mechanism, and the dynamic adsorption mechanism to reach a target temperature; by optimizing the capture test system, especially by setting the dynamic adsorption mechanism, the dynamic capture of gaseous metals by the capture material can be realized, providing a theoretical reference for practical dynamic capture and providing the versatility of the capture test system.

Description

Technical Field

[0001] This invention relates to the technical field of radioactive gas treatment, and more specifically to a capture test system for gaseous metals. Background Technology

[0002] Po-210 is an extremely toxic radionuclide that readily forms Po-210 radioactive aerosols. Its half-life is 138.4 days. If it enters the body, it can damage the structure of human tissues and organs, harm DNA, and lead to cell death. There is a possibility of Po-210 leakage in certain nuclear facilities, and leaked Po-210 could have serious impacts on workers and the environment.

[0003] To ensure the safety of the workplace environment at nuclear facilities and the personal safety and occupational health of workers, it is necessary to remove and purify Po-210 from the air or pipelines, thus requiring the research of suitable special purification materials.

[0004] Because Po has a high melting and boiling point and a low vapor pressure at room temperature and pressure, fluctuations in temperature and pressure significantly affect its volatilization concentration. Therefore, studying the impact of temperature and pressure changes on Po volatilization is highly instructive for controlling actual pressure and temperature. However, in recent years, research on Po-210 trapping materials has largely focused on experimental setups that only meet the requirements of static experiments, failing to provide accurate theoretical references for the dynamic processes in later engineering applications. Summary of the Invention

[0005] The purpose of this invention is to provide a capture test system for gaseous metals, in order to solve the problem that current test devices can only provide static experiments and cannot provide a more accurate theoretical reference for dynamic processes in practical applications.

[0006] This invention discloses a capture test system for gaseous metals, comprising a carrier gas supply device, an adsorption device, a tail gas treatment device, and a vacuum device connected in sequence by pipes.

[0007] The adsorption device includes a heating mechanism and a gas generating mechanism, a static adsorption mechanism, and a dynamic adsorption mechanism connected in sequence. The heating mechanism heats the gas generating mechanism, the static adsorption mechanism, and the dynamic adsorption mechanism to reach the target temperature.

[0008] When the above technical solution is adopted,

[0009] 1. By optimizing the capture test system, especially by setting up a dynamic adsorption mechanism, the dynamic capture of gaseous metals by the capture material can be realized, providing a theoretical reference for actual dynamic capture and demonstrating the versatility of the capture test system.

[0010] 2. By controlling the heating temperature of the heating structure and adjusting the vacuum level of the trapping test system, it is possible to develop trapping materials for different gaseous metals. Therefore, the trapping test system provided by this invention has a wide range of applications.

[0011] 3. By placing different trapping materials in static adsorption mechanisms and / or dynamic adsorption mechanisms, it is possible to conduct research and development on different trapping materials simultaneously. This ensures the same gas phase environment, reduces the number of experiments, improves research and development efficiency, and allows for comparison of the performance differences between different trapping materials.

[0012] 4. When screening materials for collection, the collection test system allows for flexible adjustment of engineering parameters, which is beneficial for subsequent practical engineering applications.

[0013] 5. When studying the capture of gaseous Po-210, materials with good capture performance for Po-210 with high melting point, high boiling point and low vapor pressure can be screened.

[0014] 6. The trapping test system can be used to study the optimal trapping conditions of Po-210 with high melting point, high boiling point and low vapor pressure, which is beneficial for determining engineering conditions.

[0015] As one possible design, the gas generating mechanism includes a first cylinder, in which a sample placement stage is provided, and a plurality of through holes are provided at the edge of the sample placement stage, the plurality of through holes being distributed along the axial direction of the first cylinder.

[0016] The through-hole provides a passage for the carrier gas, allowing it to enter the first cylinder along the side of the sample and mix with the gaseous metal that evaporates into the first cylinder to form a gaseous metal aerosol. The through-hole is located at the edge of the sample stage to prevent the carrier gas, which has a certain velocity, from carrying away the solid sample and causing sample loss.

[0017] As one possible design, the sample placement stage includes a stage body with a container mounted on the stage body, and several through holes are formed at the edge of the container. The container facilitates the placement and removal of samples.

[0018] As one possible design, the static adsorption mechanism includes a second cylinder containing a plurality of trapping materials to be tested.

[0019] After capturing the gaseous metals in aerosols, the capturing materials are tested or developed to achieve static capture.

[0020] As one possible design, the dynamic adsorption mechanism includes a third cylinder containing at least two cages distributed along its axial direction, with any two adjacent cages being detachably connected.

[0021] Multiple cages are set up to form a cage-like structure. Under the action of aerosols, the captured material floats in the cage structure and moves continuously, achieving dynamic capture. Different capturing materials are placed on different cages, which also allows for the research or experimentation of the combined use of different capturing materials, providing a theoretical basis for practical applications.

[0022] As one possible design, each cage includes a truncated cone and a top plate with a porous structure, the top plate and the truncated cone being connected by a connecting structure, the top plate being provided with the trapping material to be tested; the connecting structure is a truncated cone; preferably, the small end of the truncated cone and the top plate are detachably connected; preferably, any two adjacent truncated cones are detachably connected.

[0023] The porous top plate is designed to allow aerosols containing gaseous metal to pass through and to hold the collection material. The truncated cone design gradually reduces the flow channel of the aerosol, thereby increasing its velocity and blowing up the collection material placed on the top plate, suspending it and achieving dynamic collection.

[0024] As one possible design, the heating mechanism includes a furnace body, a heating structure placed inside the furnace body, and a heating controller;

[0025] The gas generating mechanism, the static adsorption mechanism, and the dynamic adsorption mechanism are all located inside the furnace body; the heating structure includes a first heating section for heating the gas generating mechanism, a second heating section for heating the static adsorption mechanism, and a third heating section for heating the dynamic adsorption mechanism, and the heating controller independently controls the first heating section, the second heating section, and the third heating section.

[0026] By independently controlling the heating of the three heating sections to meet the temperature requirements of different heating sections, static and dynamic adsorption can be carried out simultaneously. This allows for the study of the adsorption performance of the same trapping material using different adsorption methods, providing a theoretical basis for practical applications.

[0027] As one possible design, the carrier gas supply device includes a carrier gas cylinder, a flow controller, and a carrier gas preheater connected in sequence. By preheating the carrier gas, it is prevented from entering the gas generating mechanism and affecting the temperature, which could lead to the absence or slow generation of gaseous metals and compromise the uniformity of heat distribution in the gas generating mechanism, thus preventing the achievement of the required concentration.

[0028] As a possible design, a gas cooling device is also pipe-connected between the exhaust gas treatment device and the adsorption device to remove the residual heat of the capture test system.

[0029] As one possible design, a pressure controller is also connected between the gas cooling device and the exhaust gas treatment device. This controller is used to control the pressure of the entire trapping test system, ensuring the smooth progress of the test and preventing the leakage of gaseous metal.

[0030] As one possible design, when the gaseous metal is Po-210, the test temperature of the trapping test system is 100–600°C. At this temperature, tests on related aerosols containing gaseous Po-210 can be successfully conducted. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the trapping test system in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the adsorption device in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the dynamic adsorption mechanism in an embodiment of the present invention;

[0034] Wherein: 1-Carrier gas supply device; 101-Carrier gas cylinder; 102-Flow controller; 103-Carrier gas preheater; 2-Adsorption device; 201-Heating mechanism; 202-Gas generating mechanism; 2021-First cylinder; 2022-Sample placement stage; 203-Static adsorption mechanism; 2031-Second cylinder; 204-Dynamic adsorption mechanism; 2041-Third cylinder; 2042-Cage; 20421-Annular stage; 20422-Top plate; 20423-Frustum; 3-Tail gas treatment device; 4-Vacuum pump; 5-Gas cooling device; 6-Pressure controller; 7-Pressure gauge. Detailed Implementation

[0035] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] It should be noted that, unless otherwise explicitly specified and limited, the term "pipe connection" in this invention refers to the connection between two devices via a pipe. Those skilled in the art should understand that "pipe connection" includes not only pipes but also valves installed on the pipes to enable the connection or disconnection between the two devices.

[0041] Po-210 is an extremely toxic radionuclide that diffuses into the air in a gaseous state to form Po-210 aerosols. To ensure the safety of the workplace environment at nuclear facilities and the personal safety and occupational health of workers, trapping materials are used to capture gaseous Po-210. However, the development and testing of these trapping materials require Po-210 aerosols; therefore, a testing system capable of meeting the requirements for developing and testing these materials needs to be designed.

[0042] In recent years, the design of experimental devices for Po-210 trapping materials has mostly been able to meet the requirements of static experiments, without involving dynamic experiments. Therefore, they cannot provide accurate theoretical references for the dynamic processes in later engineering applications.

[0043] In response to the above problems, such as Figure 1As shown, this embodiment of the invention provides a trapping test system for gaseous metals. Figure 1 As shown, the above-mentioned trapping test system includes a carrier gas supply device 1, an adsorption device 2, an exhaust gas treatment device 3, and a vacuum device connected in sequence by pipes.

[0044] The adsorption device 2 includes a heating mechanism 201 and a gas generating mechanism 202, a static adsorption mechanism 203, and a dynamic adsorption mechanism 204 connected in sequence. The heating mechanism 201 heats the gas generating mechanism 202, the static adsorption mechanism 203, and the dynamic adsorption mechanism 204 to reach the target temperature.

[0045] In practical applications, the gaseous metal sample and the trapping material to be studied are first placed in the gas generating mechanism 202, the static adsorption mechanism 203, and / or the dynamic adsorption mechanism 204, respectively. Then, the carrier gas supply device 1 and the vacuum device are activated for gas replacement, followed by the tail gas treatment device 3, and finally the heating mechanism 201. Therefore, the trapping test system disclosed in this embodiment can not only achieve static adsorption but also achieve dynamic adsorption simultaneously or independently. It provides a relatively accurate theoretical reference for the dynamic process in later engineering applications and enables the study of the adsorption performance of different trapping materials used alone or in combination, providing a relatively accurate theoretical reference for practical engineering applications.

[0046] In practical applications, such as Figure 1 As shown, the heating mechanism 201 includes a furnace body, a heating structure placed inside the furnace body, and a heating controller;

[0047] The gas generating mechanism 202, the static adsorption mechanism 203, and the dynamic adsorption mechanism 204 are all housed within the furnace body. The heating structure includes a first heating section for heating the gas generating mechanism 202, a second heating section for heating the static adsorption mechanism 203, and a third heating section for heating the dynamic adsorption mechanism 204. The heating controller independently controls the first, second, and third heating sections.

[0048] By individually heating and controlling the temperature of the gas generating mechanism 202, the static adsorption mechanism 203, and the dynamic adsorption mechanism 204, different temperature requirements can be met during the experiment, especially when static adsorption and dynamic adsorption are carried out simultaneously.

[0049] In practical applications, the aforementioned heating controller preferentially adopts a remote control system based on the PID temperature control principle. This remote control system, in addition to the corresponding control program (which can be adjusted by those skilled in the art through conventional procedures without creative effort), may also include a temperature sensor installed inside the furnace and a temperature LCD screen displayed in the control room, for remote operation to achieve temperature adjustment of the heating section and interlocked shutdown of heating, etc.

[0050] In practical applications, the first heating section, the second heating section, and the third heating section can all be composed of conventional heating equipment, such as heating with resistance wire, but are not limited to this.

[0051] To reduce the mutual temperature influence between the first, second, and third heating sections, appropriate heat insulation materials, such as high-temperature resistant cotton, can be installed between each heating section, but this is not the only option.

[0052] In practical applications, such as Figure 2 As shown, the gas generating mechanism 202 includes a first cylinder 2021, a sample placement stage 2022 is provided inside the first cylinder 2021, and a plurality of through holes are provided at the edge of the sample placement stage 2022, and the plurality of through holes are distributed along the axial direction of the first cylinder 2021.

[0053] Setting several through holes can facilitate the smooth passage of carrier gas, while also preventing the carrier gas from blowing solid materials into the aerosol, which would cause trouble for subsequent aerosol processing.

[0054] Among them, such as Figure 2 As shown, the carrier gas supply device 1 and the first cylinder 2021 are connected by a pipe. In order to alleviate the problem of excessive flow rate of carrier gas entering the first cylinder 2021 or uneven mixing with gaseous metal, a buffer can be set before the carrier gas enters the sample placement stage 2022.

[0055] In practical applications, such as Figure 2 As shown, the sample placement stage 2022 includes a stage body, on which a container is disposed, and several through holes are formed on the edge of the container. In application, the container can be placed directly on the stage body without being connected, facilitating the removal of the container to load samples and then place it back on. The container can be a quartz boat with through holes, but is not limited to this.

[0056] In practical applications, such as Figure 2As shown, the static adsorption mechanism 203 includes a second cylinder 2031, within which a plurality of sample materials (not shown) to be tested are disposed. The second cylinder 2031 is connected to the first cylinder 2021 and also to the dynamic adsorption mechanism 204. In this embodiment, the shape of the sample material is not limited; by controlling the flow rate of the carrier gas, the sample material can remain stationary at all times. Generally, the sample material can be granular, flake-shaped, or square, etc.

[0057] During the experiment with the dynamic adsorption mechanism 204, the static adsorption mechanism 203 can serve as a heat equalization buffer to ensure that the downstream aerosol has a uniform temperature and concentration.

[0058] In practical applications, such as Figure 3 As shown, the dynamic adsorption mechanism 204 includes a third cylinder 2041, within which at least two cages 2042 are arranged along its axial direction. Any two adjacent cages 2042 are detachably connected. The cages 2042 restrict the area where the captured material can move and prevent it from being carried out of the dynamic adsorption mechanism 204, thus not affecting subsequent waste disposal. In practical applications, the number of cages 2042 is selected according to specific circumstances. Any two adjacent cages 2042 are detachably connected; this detachable connection can be a bolt assembly connection or a screw connection, but is not limited to these.

[0059] In practical applications, such as Figure 3 As shown, each cage 2042 includes a circular platform 20421 and a top plate 20422 with a porous structure. The top plate 20422 and the circular platform 20421 are connected by a connecting structure. The top plate 20422 is provided with the trapping material to be tested. The connecting structure is a conical platform 20423.

[0060] The porous top plate 20422 serves to limit the activity area of ​​the captured material on the lower cage 2042 without affecting the passage of aerosols. The porous top plate 20422 can be a porous quartz sieve plate, but is not limited to this. By setting a frustum 20423, the flow channel of aerosols can be gradually reduced to increase the flow velocity of aerosols, so that the captured material is in a suspended state to achieve dynamic adsorption.

[0061] In practical applications, such as Figure 3 As shown, the connection between the truncated cone 20423 and the top plate 20422 and the annular truncated cone 20421 is achieved by a combination of knife-edge flange and copper gasket, but it is not limited to this. This connection method can also achieve sealing to prevent leakage of the captured material.

[0062] In practical applications, such as Figure 3As shown, the small end of the truncated cone 20423 and the top plate 20422 are detachably connected.

[0063] In practical applications, such as Figure 3 As shown, any two adjacent annular platforms 20421 can be detachably connected, and this detachable connection is achieved by screw fastening.

[0064] In the above description, the first cylinder 2021, the second cylinder 2031 and the third cylinder 2041 can all be made of high-temperature resistant materials, such as stainless steel, but not limited to this.

[0065] One possible implementation, such as Figure 1 As shown, the carrier gas supply device 1 includes a carrier gas cylinder 101, a flow controller 102, and a carrier gas preheater 103 connected in sequence. This provides a low-flow environment that can be controlled in real time for the experiment.

[0066] The carrier gas preheater 103 can be composed of stainless steel coils and a high-temperature furnace, and is mainly used to preheat the inlet gas of the adsorption device 2 to ensure the uniformity of heat in the gas generation zone.

[0067] One possible implementation, such as Figure 1 As shown, a gas cooling device 5 is also connected between the exhaust gas treatment device 3 and the adsorption device 2. This device is used to cool the aerosol after the experiment, removing residual heat from the system for subsequent processing. In practical applications, the gas cooling device 5 can be a cold trap, but it is not limited to this.

[0068] One possible implementation, such as Figure 1 As shown, a pressure controller 6 is also connected between the gas cooling device 5 and the exhaust gas treatment device 3. The pressure controller 6, the aforementioned carrier gas supply device 1, the exhaust gas treatment device 3, and the vacuum device form a gas path, providing accurate aerosol flow control for the experiment. A pressure gauge 7 can also be installed between the pressure controller 6 and the gas cooling device 5 for real-time monitoring of the gas path pressure.

[0069] One possible implementation, such as Figure 1 As shown, the exhaust gas treatment device 3 can be a tank, and an absorbent material is placed inside the tank. The absorbent material can be, but is not limited to, an alkaline solution.

[0070] One possible implementation, such as Figure 1 As shown, the vacuum pumping device described above can be a vacuum pump 4, but is not limited to it.

[0071] In one possible implementation, the above-mentioned trapping test system can also be used in conjunction with a computer controller for remote operation and monitoring of various devices during application. The control program in the computer controller can be adjusted by those skilled in the art without creative effort based on the existing technology.

[0072] The following static trapping test, using Po-210 as an example, illustrates the working principle of the above-mentioned trapping test system.

[0073] (1) Place the irradiated alloy into a quartz boat, and then place the quartz boat on the sample stage of the gas generating mechanism 202.

[0074] (2) Place the collection material into the static adsorption mechanism 203, connect the static adsorption mechanism 203 to the gas generating mechanism 202 and the dynamic adsorption mechanism 204 respectively, and test the airtightness of the collection test system.

[0075] (3) Replace the gas in the entire collection test system with nitrogen in the carrier gas cylinder 101, and then turn on the vacuum pump 4 to form a vacuum inside the entire collection test system. The vacuum degree is controlled at 10 to 1000 Pa.

[0076] (4) Once the flow rate and vacuum of the carrier gas meet the test requirements, turn on the gas preheater;

[0077] (5) Open the first heating section and the second heating section corresponding to the gas generating mechanism 202 and the static adsorption mechanism 203 to gradually raise the temperature of the collection test system. The first heating section is heated to 300℃~500℃, and the heating temperature of the second heating section is determined according to the test temperature.

[0078] (6) Once the temperature reaches the test requirements, maintain the test temperature and ensure a sufficiently long collection time, while observing the system pressure.

[0079] (7) After the capture test is completed, turn off the first heating section;

[0080] (8) In order to avoid the interference of Po-210 condensation and deposition on the adsorption amount, nitrogen gas is first slowly introduced to purge the remaining gas into the tail gas treatment device 3 and continue to cool down to room temperature.

[0081] (9) Take out the collected material and analyze the amount of Po-210 collected.

[0082] The following dynamic capture test, using Po-210 as an example, illustrates the working principle of the above-mentioned capture test system.

[0083] (1)(1) Place the irradiated alloy in a quartz boat and then place the quartz boat on the sample stage of the gas generating mechanism 202; (2) Place the trapping material on the top plate 20422 of the dynamic adsorption structure, assemble the dynamic adsorption mechanism 204, and test the airtightness of the system.

[0084] (3) Replace the gas in the entire collection test system with nitrogen in the carrier gas cylinder 101, then turn on the vacuum pump 4, and control the flow and pressure of the system by controlling the mass flow controller 102 and the pressure transmitter, and control the vacuum degree at 10 to 1000 Pa.

[0085] (4) Once the flow rate and vacuum level in the trapping test system meet the test requirements, turn on the gas preheater and cold trap;

[0086] (5) Open the heating structure to gradually raise the temperature of the collection test system. The first heating section and the second heating section are heated to 300℃~500℃ simultaneously. The heating temperature of the third heating section is determined according to the test temperature.

[0087] (6) After the temperature reaches the test requirements, maintain the test temperature and let it run for a period of time so that the first layer of trapping material is completely penetrated and the last layer of trapping material is not trapped.

[0088] (7) After the capture test is completed, turn off the first heating section;

[0089] (8) In order to avoid the interference of Po-210 condensation and deposition on the adsorption amount, nitrogen gas is first slowly introduced to purge the remaining gas into the tail gas absorption device and continue to cool down to room temperature.

[0090] (9) Turn off vacuum pump 4. When the temperature of gas generating mechanism 202 drops below 100°C, gradually turn off the second heating section and the third heating section.

[0091] (10) After the first heating section cools down to room temperature, stop the carrier gas supply and take out the collected material to analyze the amount of Po-210 collected.

[0092] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A capture test system for gaseous metals, characterized in that, It includes a carrier gas supply device, an adsorption device, an exhaust gas treatment device, and a vacuum device connected in sequence by pipes. The adsorption device includes a heating mechanism and a gas generating mechanism, a static adsorption mechanism, and a dynamic adsorption mechanism connected in sequence. The heating mechanism heats the gas generating mechanism, the static adsorption mechanism, and the dynamic adsorption mechanism to reach the target temperature. The dynamic adsorption mechanism includes a third cylinder, and at least two cages distributed along its axial direction are provided inside the third cylinder, and any two adjacent cages can be detachably connected. Each cage includes a truncated annular platform and a top plate with a porous structure, which are connected by a connecting structure. The top plate is provided with the trapping material to be tested. The connecting structure is a truncated cone.

2. The capture assay system of claim 1, wherein, The gas generating mechanism includes a first cylinder, a sample placement stage is provided inside the first cylinder, and a plurality of through holes are provided at the edge of the sample placement stage, the plurality of through holes being distributed along the axial direction of the first cylinder.

3. The capture assay system of claim 2, wherein, The sample placement stage includes a stage body, on which a carrier is provided, and a plurality of through holes are formed at the edge of the carrier.

4. The capture assay system of claim 1, wherein The static adsorption mechanism includes a second cylinder, inside which are disposed a number of collection materials to be tested.

5. The capture assay system of claim 1, wherein, The small end of the truncated cone and the top plate are detachably connected.

6. The capture assay system of claim 1, wherein, Any two adjacent toroidal truncated rings can be detachably connected.

7. The capture assay system of claim 1, wherein The heating mechanism includes a furnace body, a heating structure placed inside the furnace body, and a heating controller; The gas generating mechanism, the static adsorption mechanism, and the dynamic adsorption mechanism are all located inside the furnace body; the heating structure includes a first heating section for heating the gas generating mechanism, a second heating section for heating the static adsorption mechanism, and a third heating section for heating the dynamic adsorption mechanism, and the heating controller independently controls the first heating section, the second heating section, and the third heating section.

8. The capture assay system of claim 1, wherein The carrier gas supply device includes a carrier gas cylinder, a flow controller, and a carrier gas preheater connected in sequence by pipes.

9. The capture assay system of claim 1, wherein A gas cooling device is also connected between the exhaust gas treatment device and the adsorption device.

10. The capture assay system of claim 9, wherein, A pressure controller is also connected between the gas cooling device and the exhaust gas treatment device.

11. The capture assay system of claim 1, wherein When the gaseous metal is Po-210, the test temperature of the trapping test system is 100~600℃.

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