Detection device and detection system

Abstract

The invention relates to the technical field of nuclide detection, and provides a detection device and a detection system.The detection device comprises a plurality of xenon adsorption boxes and a sample changing assembly, the xenon adsorption boxes are all arranged on the sample changing assembly, the sample changing assembly is provided with a sampling station, a measuring station and an activating station, and the sample changing assembly is used for driving the xenon adsorption boxes to move. And the sampling station, the measuring station and the activating station are respectively provided with a xenon adsorption box. According to the detection device provided by the embodiment of the invention, the radioactive xenon can be continuously measured, the measurement time period is shortened, and the radioactive xenon measurement efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of nuclide detection, and in particular to a detection device and a detection system. Background Art

[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Radioactive xenon is one of the main gaseous fission products produced by the chain reaction of fissile nuclides such as U-235. Radioactive xenon in the atmosphere mainly comes from daily operating emissions such as nuclear explosions, nuclear power plant reactors, and isotope production reactors. Radioactive xenon isotopes include 131m Xe, 133m Xe, 133 Xe and 135 There are four types of Xe, among which, 133 Xe has the highest emissions, accounting for more than 50% of the total radioactive noble gas emissions worldwide. 133 Xe is an important radioactive nuclide used to identify nuclear explosions and determine whether reactors are operating safely due to its large fission yield, easy diffusion in gaseous state and short half-life (5.24d).

[0004] In the related art, there is a window period in the detection process of radioactive xenon, which makes it impossible to continuously measure the radioactive xenon. Summary of the invention

[0005] In view of this, the embodiments of the present application hope to provide a detection device and a detection system that can achieve uninterrupted and continuous measurement of radioactive xenon, shorten the measurement time period, and improve the efficiency of radioactive xenon measurement.

[0006] A first aspect of an embodiment of the present application provides a detection device, including:

[0007] Multiple xenon adsorption boxes;

[0008] A sample changing assembly, wherein the plurality of xenon adsorption boxes are all arranged in the sample changing assembly, the sample changing assembly has a sampling station, a measuring station and an activation station, and the sample changing assembly is used to drive the plurality of xenon adsorption boxes to move, so that the sampling station, the measuring station and the activation station respectively have one xenon adsorption box.

[0009] In some embodiments, the sample changing assembly includes a rotating device, all the xenon adsorption boxes are arranged on the rotating device, and the rotating device drives all the xenon adsorption boxes to rotate, so that each of the xenon adsorption boxes circulates through the sampling station, the measuring station and the activation station in sequence.

[0010] In some embodiments, a plurality of the xenon adsorption boxes are evenly spaced along the circumferential direction and arranged on the rotating device.

[0011] In some embodiments, the xenon adsorption box is formed with a first adsorption chamber, multiple second adsorption chambers, an air outlet chamber, an air outlet and an air inlet, and the first adsorption chamber, the second adsorption chamber and the air outlet chamber are all provided with adsorption materials, the air inlet is connected with the first adsorption chamber, and the multiple second adsorption chambers are connected in sequence, the first adsorption chamber is connected with the second adsorption chamber at the head end, the air outlet chamber is connected with the second adsorption chamber at the tail end, and the air outlet is connected with the air outlet chamber.

[0012] In some embodiments, the xenon adsorption box includes an outer box and a partition, the outer box is formed with an adsorption chamber, the air inlet and the air outlet, and the partition is arranged in the adsorption chamber to separate the adsorption chamber into the first adsorption chamber, a plurality of the second adsorption chambers and the air outlet chamber.

[0013] In some embodiments, the partition includes a central tube, a first partition and a plurality of second partitions, the first partition and the plurality of second partitions are circumferentially spaced apart in the central tube, the space within the central tube is the air outlet chamber, the space between the first partition and one of the second partitions is the first adsorption chamber, and the space between two adjacent second partitions is the second adsorption chamber.

[0014] In some embodiments, the second partition plate is formed with a flow hole, the flow hole connects two adjacent second adsorption chambers, and the flow holes of two adjacent second partition plates are staggered.

[0015] In some embodiments, the air inlet and the air outlet are both disposed on a side wall of the xenon adsorption box along the axial direction.

[0016] In some embodiments, the detection device includes a heating component, and the heating component is used to heat and activate the adsorption material in the xenon adsorption box.

[0017] In some embodiments, the sample changing assembly includes a rotating device and a lifting device, the heating assembly is located above or below the activation station, all the xenon adsorption boxes are arranged on the rotating device, and the lifting device drives the rotating device to drive all the xenon adsorption boxes to reciprocate in the up and down directions.

[0018] In some embodiments, the rotating device includes a rotating frame and a plurality of air outlet pipes corresponding to all the xenon adsorption boxes one by one, the side wall of the xenon adsorption box is formed with an air outlet, the air outlet pipe connects the side wall of the xenon adsorption box and the rotating frame, and the air outlet pipe is connected to the air outlet.

[0019] In some embodiments, the sample changing assembly includes a fixed frame, a guide plate and a guide rod, the lifting device includes a cylinder body and a telescopic rod, the cylinder body is arranged on the fixed frame, the guide plate connects the telescopic rod and the guide rod, and the guide rod and the fixed frame slide together in the up and down directions.

[0020] In some embodiments, the detection device includes a separation component, and the separation component is used to separate a first gas and a second gas in the air. The first gas includes xenon gas, and the first gas is delivered to the xenon adsorption box located at the sampling station.

[0021] In some embodiments, the detection device includes a compression and cooling component, to which the second gas is delivered, and the compression and cooling component is used to compress the second gas to reduce the temperature of the second gas, and deliver the cooled second gas to the xenon adsorption box located at the activation station.

[0022] In some embodiments, the xenon adsorption box located at the sampling station is used to separate the protective gas from the first gas and transport it to the xenon adsorption box located at the activation station.

[0023] A second aspect of an embodiment of the present application provides a detection system, comprising any of the detection devices described above.

[0024] The detection device provided in the embodiment of the present application drives multiple xenon adsorption boxes to move through a sample changing assembly, so that the sampling station, the measuring station, and the activation station each have a xenon adsorption box. On the one hand, the detection device can always keep a xenon adsorption box at the measuring station, and the detection device can continuously measure the xenon gas. There is no idle period in the detection process, thereby improving the detection efficiency. On the other hand, the detection device can realize automatic control of xenon gas from sampling to measurement to activation, thereby improving the degree of automation of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a detection device provided in some embodiments of the present application;

[0026] Figure 2 A schematic diagram of the structure of a sample changing assembly provided in some embodiments of the present application;

[0027] Figure 3 A schematic diagram of the structure of the box body and the partition assembly provided in some embodiments of the present application;

[0028] Figure 4 A schematic diagram of the structure of a xenon adsorption box provided in some embodiments of the present application;

[0029] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 6 A schematic diagram of the structure of the box body, the partition and the plurality of sealing plates provided in some embodiments of the present application;

[0031] Figure 7 A schematic diagram of the structure of a xenon adsorption box provided in some embodiments of the present application located in a heating chamber;

[0032] Figure 8 for Figure 1 A schematic cross-sectional view of the structure shown at position aa, wherein the xenon adsorption box is located at the activation station;

[0033] Fig. 9 for Figure 2 Enlarged view of point B in the middle;

[0034] Fig.10 for Figure 1 The structure shown is a schematic cross-sectional view at position bb, wherein the xenon adsorption box is located at the sampling station;

[0035] Fig.11 for Fig.10 Enlarged view of center C.

[0036] Description of Reference Numerals

[0037] Detection device 100;

[0038] Xenon adsorption box 10; first adsorption chamber 10a; second adsorption chamber 10b; gas outlet chamber 10c; gas outlet 10d; gas inlet 10e;

[0039] Outer box 11; adsorption chamber 11a; box body 111; pressing cover 112; sealing plate 113;

[0040] Partition 12; center tube 121; flow port 121a; first partition 122; second partition 123; flow hole 123a;

[0041] Sample changing assembly 20; sampling station 20a; measuring station 20b; activation station 20c;

[0042] Rotating device 21; rotating frame 211; limiting groove 211a; limiting hole 211b; air outlet pipe 212; motor frame 213; driving motor 214; fixing member 215; fixing hole 215a;

[0043] Lifting device 22; cylinder 221; telescopic rod 222;

[0044] Fixed frame 23; support column 231; fixed seat 232; connecting plate 233;

[0045] Guide plate 24; Guide rod 25;

[0046] Heating assembly 30 ; heater 31 ; heating chamber 31 a ; inlet and outlet 31 b ; insulation sleeve 32 ; insulation chamber 32 a ; thermocouple 33 . DETAILED DESCRIPTION

[0047] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0048] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in this application are no longer described separately. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] In the related art, the detection process of radioactive xenon includes three stages: sampling, measurement and activation, and the detection device usually includes a detection box for adsorbing radioactive xenon. The detection box needs to go through the three stages in sequence. For example, when measuring the radioactive xenon in the detection box, the detection box cannot sample and activate the radioactive xenon, resulting in a window period in the detection process of radioactive xenon, affecting the detection efficiency.

[0050] See also Figures 1 to 11 The embodiment of the present application provides a detection device 100, including multiple xenon adsorption boxes 10 and a sample changing component 20. The multiple xenon adsorption boxes 10 are all arranged in the sample changing component 20. The sample changing component 20 has a sampling station 20a, a measuring station 20b and an activation station 20c. The sample changing component 20 is used to drive the multiple xenon adsorption boxes 10 to move, so that the sampling station 20a, the measuring station 20b and the activation station 20c respectively have a xenon adsorption box 10.

[0051] In the present application, the radioactive xenon is in gas phase, that is, xenon gas. The xenon adsorption box 10 is used to adsorb xenon gas.

[0052] The sampling station 20a is a station where the xenon adsorption box 10 adsorbs xenon gas. The measuring station 20b is a station where the xenon gas in the xenon adsorption box 10 is measured. The activation station 20c is a station where the xenon adsorption box 10 is activated.

[0053] See also Figure 1, taking three xenon adsorption boxes 10 as an example: the three xenon adsorption boxes 10 are respectively located at the sampling station 20a, the measuring station 20b and the activation station 20c. That is to say, the detection device 100 can perform sampling, measurement and activation at the same time.

[0054] The sample changing component 20 can drive multiple xenon adsorption boxes 10 to move. For example, the sample changing component 20 can drive the xenon adsorption box 10 to move from the sampling station 20a to the measuring station 20b, and the other two xenon adsorption boxes 10 are respectively moved to the activation station 20c and the sampling station 20a. Furthermore, the sample changing component 20 drives the xenon adsorption box 10 to move from the measuring station 20b to the activation station 20c, and the other two xenon adsorption boxes 10 are respectively moved to the sampling station 20a and the measuring station 20b. In this way, the detection device 100 can always keep a xenon adsorption box 10 located at the measuring station 20b, and measure the xenon gas in the xenon adsorption box 10. In this way, during the detection process of xenon gas, the detection device 100 can continuously measure the xenon gas, and there is no window period in the detection process, thereby improving the detection efficiency.

[0055] In addition, by driving the xenon adsorption box 10 to move through the sample changing component 20 , the detection device 100 can realize automatic control of xenon gas from sampling to measurement to activation, thereby improving the degree of automation of the detection device 100 .

[0056] It should be noted that, in the present application, except for the specific descriptions in the embodiments, the "multiple" in the other embodiments refers to the number including two or more.

[0057] The detection device 100 provided in the embodiment of the present application drives multiple xenon adsorption boxes 10 to move through the sample replacement component 20, so that the sampling station 20a, the measuring station 20b and the activation station 20c each have a xenon adsorption box 10. On the one hand, the detection device 100 can always keep a xenon adsorption box 10 located at the measuring station 20b, and the detection device 100 can continuously measure the xenon gas, and there is no window period in the detection process, thereby improving the detection efficiency. On the other hand, the detection device 100 can realize automatic control of xenon gas from sampling to measurement and then to activation, thereby improving the degree of automation of the detection device 100.

[0058] For some examples, see Figure 2 The sample changing assembly 20 includes a rotating device 21, and all xenon adsorption boxes 10 are arranged on the rotating device 21. The rotating device 21 drives all xenon adsorption boxes 10 to rotate, so that each xenon adsorption box 10 circulates through the sampling station 20a, the measuring station 20b and the activation station 20c in sequence.

[0059] The sampling station 20a, the measuring station 20b and the activation station 20c can be arranged in a circular track. Figure 1, in the initial state, the three xenon adsorption boxes 10 located at the sampling station 20a, the measuring station 20b and the activation station 20c are defined as the first xenon adsorption box, the second xenon adsorption box and the third xenon adsorption box. The rotating device 21 rotates, and the first xenon adsorption box moves from the sampling station 20a to the measuring station 20b; the second xenon adsorption box moves from the measuring station 20b to the activation station 20c; and the third xenon adsorption box moves from the activation station 20c to the sampling station 20a. Repeat the above steps, the first xenon adsorption box passes through the activation station 20c and returns to the sampling station 20a, the second xenon adsorption box passes through the sampling station 20a and returns to the measuring station 20b, and the third xenon adsorption box passes through the measuring station 20b and returns to the activation station 20c.

[0060] Thus, through a rotational motion, multiple xenon adsorption boxes 10 can move simultaneously, and the operation is convenient and fast. In addition, the detection device 100 can repeat the process of cyclic sampling, measurement and activation, thereby realizing continuous detection of xenon gas and improving detection efficiency.

[0061] For some examples, see Figure 1 A plurality of xenon adsorption boxes 10 are evenly spaced along the circumferential direction and arranged on the rotating device 21 .

[0062] For example, please refer to Figure 1 , take the example that the sampling station 20a, the measuring station 20b and the activation station 20c are evenly spaced along the circumference of the sample changing assembly 20, and the three xenon adsorption boxes 10 are evenly spaced along the circumference of the rotating device 21: the center points of the three xenon adsorption boxes 10 respectively form three connecting lines with the axis of the rotating device 21, and the angles between the three connecting lines are 120° (degrees). In this way, when the rotating device 21 rotates by the same angle of 120° each time, the three xenon adsorption boxes 10 can complete the switching between different stations, and the consistency of the movement of all xenon adsorption boxes 10 can be maintained, thereby improving the precision control of the xenon adsorption boxes 10 by the detection device 100, and the reliability of the operation of the detection device 100 can also be improved.

[0063] For some examples, see Figure 3 and Figure 4 The xenon adsorption box 10 is formed with a first adsorption chamber 10a, a plurality of second adsorption chambers 10b, an air outlet chamber 10c, an air outlet 10d and an air inlet 10e. Adsorption materials are arranged in the first adsorption chamber 10a, the second adsorption chamber 10b and the air outlet chamber 10c. The air inlet 10e is connected with the first adsorption chamber 10a, and the plurality of second adsorption chambers 10b are connected in sequence. The first adsorption chamber 10a is connected with the second adsorption chamber 10b at the head end, the air outlet chamber 10c is connected with the second adsorption chamber 10b at the tail end, and the air outlet 10d is connected with the air outlet chamber 10c.

[0064] Adsorbent material is used to adsorb xenon. Figure 3 , Figure 4 and Fig.10 Taking the xenon adsorption box 10 located at the sampling station 20a as an example, the target gas containing xenon gas flows into the first adsorption chamber 10a through the gas inlet 10e, then flows into the second adsorption chamber 10b at the head end, and then flows through multiple second adsorption chambers 10b in sequence until it flows into the second adsorption chamber 10b at the tail end, and finally flows to the outside through the gas outlet chamber 10c and the gas outlet 10d. In this way, the flow path of the target gas in the xenon adsorption box 10 can be extended, and the contact time between the target gas and the adsorption material can be increased, so that the adsorption material can fully adsorb the xenon gas, thereby improving the accuracy of the detection device 100.

[0065] The specific type of the adsorption material is not limited, and may be, for example, activated carbon, molecular sieves, and organic metal frameworks.

[0066] The specific number of the second adsorption chambers 10b is not limited. For example, the second adsorption chambers 10b may be two, four or eight, etc., to improve the adsorption efficiency of the adsorption material on xenon.

[0067] For some examples, see Figure 3 and Figure 4 The xenon adsorption box 10 includes an outer box 11 and a partition 12. The outer box 11 is formed with an adsorption chamber 11a, an air inlet 10e and an air outlet 10d. The partition 12 is arranged in the adsorption chamber 11a to separate the adsorption chamber 11a into a first adsorption chamber 10a, a plurality of second adsorption chambers 10b and an air outlet chamber 10c. In this way, on the one hand, the space in the adsorption chamber 11a is separated by the partition 12, so that the first adsorption chamber 10a, the second adsorption chamber 10b and the air outlet chamber 10c can be arranged according to a certain rule, thereby limiting the flow path of the airflow in the adsorption chamber 11a, so that the airflow can flow more smoothly. On the other hand, the outer box 11 and the partition 12 can be produced separately to reduce the manufacturing difficulty.

[0068] For some examples, see Figure 3 The partition 12 includes a central tube 121, a first partition plate 122 and a plurality of second partition plates 123. The first partition plate 122 and the plurality of second partition plates 123 are circumferentially spaced apart in the central tube 121. The space inside the central tube 121 is an air outlet chamber 10c. The space between the first partition plate 122 and one of the second partition plates 123 is a first adsorption chamber 10a. The space between two adjacent second partition plates 123 is a second adsorption chamber 10b.

[0069] That is, see Figure 3, the outlet chamber 10c is roughly located in the middle of the adsorption chamber 11a, the first adsorption chamber 10a and the plurality of second adsorption chambers 10b surround the circumference of the outlet chamber 10c, and the target gas containing xenon gas enters the first adsorption chamber 10a through the air inlet 10e, and flows from the second adsorption chamber 10b at the head end to the second adsorption chamber 10b at the tail end in the circumferential direction, and finally flows to the outside through the outlet chamber 10c and the air outlet 10d. In this way, on the basis of extending the flow path of the target gas in the xenon adsorption box 10 and improving the adsorption efficiency of the adsorption material for xenon gas, the first adsorption chamber 10a, the plurality of second adsorption chambers 10b and the outlet chamber 10c are arranged relatively regularly, so that the air flow can flow more smoothly. In addition, the positions of the first adsorption chamber 10a and the outlet chamber 10c are known, which is convenient for setting the air inlet 10e and the air outlet 10d on the xenon adsorption box 10.

[0070] In one embodiment, the central tube 121, the first partition plate 122 and the plurality of second partition plates 123 are an integrated structure, so that the connection between the central tube 121, the first partition plate 122 and the plurality of second partition plates 123 is stable and can also improve production efficiency.

[0071] In another embodiment, the central tube 121, the first partition plate 122 and the plurality of second partition plates 123 are split structures, so that the central tube 121, the first partition plate 122 and the plurality of second partition plates 123 can be produced separately, thereby reducing the manufacturing difficulty.

[0072] For some examples, see Figure 5 The second partition plate 123 is formed with a flow hole 123a, which connects two adjacent second adsorption chambers 10b, and the flow holes 123a of two adjacent second partition plates 123 are staggered. That is, the airflow flows from one second adsorption chamber 10b to another adjacent second adsorption chamber 10b through the flow hole 123a.

[0073] For example, see Figure 5 Along the axial direction of the outer box 11, the flow holes 123a of the two adjacent second partitions 123 are respectively located on opposite sides. In this way, the flow path of the target gas in the xenon adsorption box 10 can be further extended, and the contact time between the target gas and the adsorption material can be increased, so that the adsorption material can fully adsorb the xenon gas, thereby improving the accuracy of the detection device 100.

[0074] For example, see Figure 5 The number of the flow holes 123a can be multiple, which can increase the circulation speed of the airflow.

[0075] See also Figure 5The central tube 121 is formed with a flow port 121a, which communicates with the outlet chamber 10c and the second adsorption chamber 10b at the tail end, and the first partition plate 122 is not formed with a flow hole 123a. In this way, the airflow will not flow from the second adsorption chamber 10b at the tail end into the first adsorption chamber 10a, and the airflow will flow into the outlet chamber 10c through the flow port 121a, and then flow to the outside through the outlet 10d.

[0076] For example, please refer to Figure 5 The flow opening 121a is offset from the flow hole 123a of the adjacent second partition plate 123. There may be a plurality of flow openings 121a, which can increase the flow velocity of the airflow.

[0077] For some examples, see Figure 4 The air inlet 10e and the air outlet 10d are both arranged on a side wall of the xenon adsorption box 10 along the axial direction.

[0078] For example, please refer to Figure 4 The air inlet 10e and the air outlet 10d are both arranged on the same side wall of the xenon adsorption box 10 along the axial direction. In this way, it is convenient to connect the air inlet 10e and the air outlet 10d to the external pipeline. In addition, it can also reduce the difficulty of production.

[0079] In another embodiment, the air inlet 10e and the air outlet 10d are respectively located on two side walls of the xenon adsorption box 10 along the axial direction.

[0080] In one embodiment, please refer to Figure 4 The outer box 11 includes a box body 111 and a compression cover 112. The two compression covers 112 are sealed and connected to one end of the box body 111 along the axial direction to define an adsorption chamber 11a together. The compression covers 112 form an air inlet 10e and an air outlet 10d. In this way, the two compression covers 112 play a sealing role, which can enhance the sealing performance of the xenon adsorption box 10 and prevent gas leakage.

[0081] In one embodiment, please refer to Figure 6 The second adsorption chamber 10b has an opening, and the outer box 11 includes a plurality of sealing plates 113, all of which are sealed and connected to the partition 12 to cover the opening. In this way, the plurality of sealing plates 113 play a sealing role, which can enhance the sealing performance of the second adsorption chamber 10b and prevent gas leakage.

[0082] For some examples, see Figure 7 and Figure 8The detection device 100 includes a heating component 30, which is used to heat and activate the adsorption material in the xenon adsorption box 10. In this way, on the one hand, the heating component 30 desorbs the xenon gas adsorbed in the adsorption material and discharges the xenon gas in the adsorption material, thereby activating the adsorption material. On the other hand, various substances in the target gas adhere to the pore structure of the adsorption material, reducing the adsorption effect of the adsorption material. These substances can be removed by heating the heating component 30, thereby enhancing the adsorption effect of the adsorption material, reducing the impact on subsequent sampling and measurement, and allowing the adsorption material to be reused.

[0083] In one embodiment, the temperature of the heating component 30 is 30° C. (Celsius) to 500° C. For example, it can be 30° C., 100° C., 200° C., 300° C., 400° C. or 500° C., etc., taking into account both the desorption of xenon gas and the activation of the adsorption material.

[0084] In one embodiment, the temperature control accuracy of the heating component 30 is ±0.5° C., which is conducive to the precise control of the heating temperature, thereby improving the accuracy of the detection device 100 .

[0085] For some examples, see Figure 2 The sample changing assembly 20 includes a rotating device 21 and a lifting device 22. The heating assembly 30 is located above or below the activation station 20c. All xenon adsorption boxes 10 are arranged on the rotating device 21. The lifting device 22 drives the rotating device 21 to drive all xenon adsorption boxes 10 to reciprocate in the up and down directions.

[0086] The xenon adsorption box 10 is switched between the activation station 20c and the position of the heating component 30 through the lifting device 22, that is, the heating component 30 can contact the xenon adsorption box 10 to heat the adsorption material, or the heating component 30 and the xenon adsorption box 10 are misaligned to prevent the xenon adsorption box 10 from touching the heating component 30 during movement and causing damage.

[0087] For example, see Figure 7 and Figure 8, the heating assembly 30 is located below the activation station 20c, and the heating assembly 30 includes a heater 31, which is formed with a heating chamber 31a and an inlet and outlet 31b connected to the heating chamber 31a, and the rotating device 21 moves in the up-down direction to allow the xenon adsorption box 10 to enter and exit the heating chamber 31a through the inlet and outlet 31b. In this way, the xenon adsorption box 10 located at the measuring station 20b moves to the activation station 20c, and the lifting device 22 drives the rotating device 21 to move downward, thereby driving the xenon adsorption box 10 to move downward and enter the heating chamber 31a. The cavity wall of the heating chamber 31a covers the circumferential surface of the xenon adsorption box 10, and the contact area between the heater 31 and the xenon adsorption box 10 is large, thereby improving the heating efficiency of the heater 31. The lifting device 22 drives the rotating device 21 to move upward, thereby driving the xenon adsorption box 10 to leave the heating chamber 31a through the inlet and outlet 31b, completing the activation of the adsorption material, and then the rotating device 21 drives the xenon adsorption box 10 to move to the sampling station 20a.

[0088] It should be noted that, in the present application, down refers to the direction toward the ground, and up refers to the direction opposite to down.

[0089] The specific type of the heater 31 is not limited. For example, the heater 31 may be a resistive heater 31. The specific material of the heater 31 is not limited. For example, the heater 31 may be metal copper, which has good thermal conductivity and a fast temperature rise rate.

[0090] In one embodiment, please refer to Figure 7 The heating component 30 includes a thermocouple 33 , which is connected to the heater 31 to measure the temperature of the heater 31 in real time.

[0091] In one embodiment, please refer to Figure 7 and Figure 8 The heating assembly 30 includes a heat preservation sleeve 32, the heat preservation sleeve 32 forms a heat preservation cavity 32a, and the heater 31 is accommodated in the heat preservation cavity 32a. In this way, during the heating process of the xenon adsorption box 10 by the heater 31, the heat transfer to the outside of the heat preservation cavity 32a can be reduced through the heat preservation cavity 32a, thereby improving the heating effect of the heating assembly 30.

[0092] For some examples, see Figure 1 , Fig.10 and Fig.11 The rotating device 21 includes a rotating frame 211 and a plurality of air outlet pipes 212 corresponding to all xenon adsorption boxes 10 one by one. The side wall of the xenon adsorption box 10 is formed with an air outlet 10d. The air outlet pipe 212 connects the side wall of the xenon adsorption box 10 and the rotating frame 211, and the air outlet pipe 212 is connected to the air outlet 10d.

[0093] The gas outlet 10d is connected to the gas outlet chamber 10c, and the gas outlet chamber 10c is approximately located in the middle of the adsorption chamber 11a, that is, the gas outlet 10d is approximately located in the middle of the side wall of the xenon adsorption box 10, that is, the gas outlet 10d is approximately located in the middle of the pressing cover 112. One end of the gas outlet pipe 212 is connected to the surrounding part of the gas outlet 10d, that is, the gas outlet pipe 212 is connected to the middle part of the pressing cover 112, so that the xenon adsorption box 10 can be relatively stably arranged on the rotating frame 211, ensuring the operational reliability of the detection device 100.

[0094] The xenon gas and other gases in the xenon adsorption box 10 flow to the outside through the gas outlet 10d and the gas outlet pipe 212. For example, the gas outlet pipe 212 can be connected to an external gas storage device, and the gas storage device can be used to collect the xenon gas.

[0095] In one embodiment, please refer to Figures 9 to 11 The rotating device 21 includes a fixing member 215, the fixing member 215 is formed with a fixing hole 215a, the rotating frame 211 is formed with a limiting groove 211a and a limiting hole 211b connected to the limiting groove 211a, at least a part of the fixing member 215 is accommodated in the limiting groove 211a, and the air outlet pipe 212 is passed through the fixing hole 215a and the limiting hole 211b.

[0096] See also Fig.11 The hole wall surface of the fixing hole 215a abuts against the circumferential surface of the outlet pipe 212 to enhance the connection stability between the outlet pipe 212 and the fixing member 215. At least part of the fixing member 215 is accommodated in the limiting groove 211a, so that the outlet pipe 212 can be prevented from loosening and shifting by the limiting groove 211a and the fixing member 215. The outlet pipe 212 can be tightly connected to the xenon adsorption box 10, thereby preventing the xenon adsorption box 10 from loosening and shifting during operation, enhancing the stability of the xenon adsorption box 10, and ensuring the operational reliability of the detection device 100.

[0097] In one embodiment, please refer to Figure 2 The rotating device 21 includes a motor frame 213 and a driving motor 214. The rotating frame 211 and the driving motor 214 are both arranged on the motor frame 213. All xenon adsorption boxes 10 are arranged on the rotating frame 211. The rotating frame 211 and the driving motor 214 are transmission-connected.

[0098] The motor frame 213 plays a supporting role and can maintain the stability of the rotating frame 211 during the rotation process. The driving force of the driving motor 214 is transmitted to the rotating frame 211, and the rotating frame 211 is rotated by an electric control method. In this way, the use of the driving motor 214 can realize the automatic control of the rotating frame 211, thereby improving the automation degree of the detection device 100.

[0099] The specific type of the drive motor 214 is not limited. For example, the drive motor 214 can be a servo drive motor with good stability and better precision control.

[0100] For some examples, see Figure 2 The sample changing assembly 20 includes a fixed frame 23, a guide plate 24 and a guide rod 25. The lifting device 22 includes a cylinder body 221 and a telescopic rod 222. The cylinder body 221 is arranged on the fixed frame 23. The guide plate 24 connects the telescopic rod 222 and the guide rod 25. The guide rod 25 and the fixed frame 23 slide in cooperation in the up and down directions.

[0101] The fixing frame 23 is used to fix the cylinder body 221, and enhance the connection stability between the lifting device 22 and the fixing frame 23. Figure 2 The telescopic rod 222 drives the guide plate 24 and the guide rod 25 to slide along the up and down directions. The guide plate 24 and the guide rod 25 play a guiding role, so that the rotating device 21 can slide back and forth stably along the up and down directions.

[0102] For example, see Figure 2 The telescopic rod 222 can be connected to the motor frame 213 to drive the rotating device 21 to move up and down.

[0103] For example, see Figure 2 There are two guide rods 25, and the two guide rods 25 are respectively arranged on both sides of the telescopic rod 222 along the first direction, wherein the first direction is perpendicular to the up-down direction. In this way, the stability of the telescopic rod 222 during the movement can be further improved, thereby improving the reliability of the rotating device 21 sliding along the up-down direction.

[0104] In one embodiment, please refer to Figure 2 The fixing frame 23 includes two supporting columns 231, a fixing seat 232 and a connecting plate 233. The fixing seat 232 is connected to the lower ends of the two supporting columns 231 at both ends along the first direction, and the connecting plate 233 is connected to the upper ends of the two supporting columns 231 at both ends along the first direction. In this way, the fixing frame 23 is roughly a frame structure with good structural stability, thereby improving the stability of the sample changing component 20.

[0105] In some embodiments, the detection device 100 includes a separation component, which is used to separate a first gas and a second gas in the air. The first gas includes xenon gas, and the first gas is delivered to the xenon adsorption box 10 located at the sampling station 20a.

[0106] Specifically, the first gas is first delivered to the xenon adsorption box 10 located at the sampling station 20a, and the first gas filtered by the xenon adsorption box 10 located at the sampling station 20a is then delivered to the xenon adsorption box 10 located at the activation station 20c.

[0107] Exemplarily, the second gas includes oxygen and carbon dioxide, etc. By separating the first gas and the second gas through the separation component, on the one hand, other components in part of the air can be filtered out, and the adsorption material can fully adsorb the xenon gas in the first gas, thereby improving the accuracy of the detection device 100. On the other hand, the risk of oxygen and carbon dioxide and other oxygen-containing gases entering the xenon adsorption box 10 is reduced, thereby reducing the impact on the adsorption material.

[0108] In one embodiment, the separation component includes a xenon separation membrane, and the xenon separation membrane is used to separate the first gas from the air. In other words, the detection device 100 uses membrane separation, which has high separation efficiency and low energy consumption.

[0109] In some embodiments, the detection device 100 includes a compression cooling component to which the second gas is delivered. The compression cooling component is used to compress the second gas to reduce the temperature of the second gas and deliver the cooled second gas to the xenon adsorption box 10 located at the activation station 20c.

[0110] Specifically, the cooled second gas flows through the outside of the xenon adsorption box 10 located at the activation station 20c, and the cooled second gas blows the xenon adsorption box 10 located at the activation station 20c. In this way, the cooled second gas can directly cool the xenon adsorption box 10 of the activation station 20c from the outside, thereby reducing the temperature of the xenon adsorption box 10 of the activation station 20c.

[0111] The temperature of the xenon adsorption box 10 after activation treatment is relatively high, and the adsorption efficiency of the adsorption material is low under high temperature. By cooling the adsorption material in the xenon adsorption box 10 of the activation station 20c through the cooled second gas, the adsorption material can quickly restore a certain adsorption effect, shortening the time required for the adsorption material to cool naturally, so that the detection device 100 can quickly and continuously measure the xenon gas, thereby improving the detection efficiency. In addition, the detection device 100 can make full use of different components in the air, thereby reducing costs.

[0112] In one embodiment, the compression and cooling component includes a vortex structure, which includes a vortex tube, a nozzle and a vortex chamber that are interconnected. The vortex tube compresses and cools the second gas. The cooled second gas enters the nozzle, expands in the nozzle and accelerates to the speed of sound (340 m / s), and is injected into the vortex chamber along the tangential direction of the circumferential surface of the vortex chamber to form a free vortex. The closer the rotation angular velocity of the free vortex is to the center of the vortex chamber, the greater it is. Due to the different angular velocities, friction is generated between the layers of the free vortex. Among them, the vortex layer at the center of the vortex chamber has the largest velocity, and transfers energy to the outer vortex layer with a smaller angular velocity. The energy of the vortex layer at the center is reduced, and the kinetic energy and velocity are reduced, thereby achieving a temperature reduction and completing the cooling of the second gas.

[0113] The gas cooling temperature range of the compression cooling component is 10° C. to 30° C. For example, it can be 10° C., 15° C., 20° C., 25° C. or 30° C., etc.

[0114] In some embodiments, the xenon adsorption box 10 located at the sampling station 20a is used to separate the protective gas (mainly including high-purity nitrogen) from the first gas and transport it to the xenon adsorption box 10 located at the activation station 20c.

[0115] It should be noted that after the first gas is adsorbed by the adsorption material of the xenon adsorption box 10 at the sampling station 20a, the xenon has been basically adsorbed and filtered out, and the adsorbed protective gas is introduced into the xenon adsorption box 10 at the activation station 20c to protect and cool the high-temperature adsorption material.

[0116] Exemplarily, the gas outlet 10d of the xenon adsorption box 10 at the sampling station 20a is connected to the gas inlet 10e of the xenon adsorption box 10 at the activation station 20c, so that the protective gas can flow from the xenon adsorption box 10 at the sampling station 20a into the xenon adsorption box 10 at the activation station 20c. The protective gas is used to provide an inert environment, which can protect the adsorption material activated by high temperature from oxidation. At the same time, the protective gas can also cool the adsorption material from the inside of the xenon adsorption box 10 to quickly cool down the xenon adsorption box 10.

[0117] The embodiment of the present application further provides a detection system, including the detection device 100 in any embodiment of the present application. In this way, the detection efficiency of xenon gas is improved by the detection device 100, thereby improving the detection efficiency of the detection system.

[0118] Exemplarily, the detection device 100 includes a shielding component, which is disposed at the measuring station 20b. The shielding component is used to shield radiation interference from the external environment and improve the accuracy of the detection device 100 in measuring xenon gas.

[0119] In the description of this specification, the description with reference to the terms "an embodiment", "another embodiment", "some embodiments" and "exemplary" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0120] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction. The above description is only a preferred embodiment of this application and is not intended to limit this application. For those skilled in the art, this application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A detection device, characterized in that: include: Multiple xenon adsorption boxes; A sample changing assembly, wherein the plurality of xenon adsorption boxes are all arranged in the sample changing assembly, the sample changing assembly has a sampling station, a measuring station and an activation station, and the sample changing assembly is used to drive the plurality of xenon adsorption boxes to move, so that the sampling station, the measuring station and the activation station respectively have one xenon adsorption box.

2. The detection device according to claim 1, characterized in that: The sample changing assembly comprises a rotating device, all the xenon adsorption boxes are arranged on the rotating device, and the rotating device drives all the xenon adsorption boxes to rotate, so that each of the xenon adsorption boxes circulates through the sampling station, the measuring station and the activation station in sequence.

3. The detection device according to claim 2, characterized in that: A plurality of the xenon adsorption boxes are evenly spaced and arranged on the rotating device along the circumferential direction.

4. The detection device according to claim 1, characterized in that: The xenon adsorption box is formed with a first adsorption chamber, a plurality of second adsorption chambers, an air outlet chamber, an air outlet and an air inlet. Adsorption materials are arranged in the first adsorption chamber, the second adsorption chamber and the air outlet chamber. The air inlet is connected with the first adsorption chamber, and the plurality of second adsorption chambers are connected in sequence. The first adsorption chamber is connected with the second adsorption chamber at the head end, the air outlet chamber is connected with the second adsorption chamber at the tail end, and the air outlet is connected with the air outlet chamber.

5. The detection device according to claim 4, characterized in that: The xenon adsorption box includes an outer box and a partition, wherein the outer box is formed with an adsorption chamber, the air inlet and the air outlet, and the partition is disposed in the adsorption chamber to separate the adsorption chamber into the first adsorption chamber, a plurality of the second adsorption chambers and the air outlet chamber.

6. The detection device according to claim 5, characterized in that: The partition includes a central tube, a first partition and a plurality of second partitions, wherein the first partition and the plurality of second partitions are circumferentially spaced apart in the central tube, the space within the central tube is the air outlet chamber, the space between the first partition and one of the second partitions is the first adsorption chamber, and the space between two adjacent second partitions is the second adsorption chamber.

7. The detection device according to claim 6, characterized in that: The second partition plate is formed with a flow hole, the flow hole communicates with two adjacent second adsorption chambers, and the flow holes of two adjacent second partition plates are staggered.

8. The detection device according to claim 4, characterized in that: The air inlet and the air outlet are both arranged on a side wall of the xenon adsorption box along the axial direction.

9. The detection device according to claim 1, characterized in that: The detection device comprises a heating component, and the heating component is used for heating and activating the adsorption material in the xenon adsorption box.

10. The detection device according to claim 9, characterized in that: The sample changing assembly includes a rotating device and a lifting device, the heating assembly is located above or below the activation station, all the xenon adsorption boxes are arranged on the rotating device, and the lifting device drives the rotating device to drive all the xenon adsorption boxes to reciprocate in the up and down directions.

11. The detection device according to claim 10, characterized in that: The rotating device includes a rotating frame and a plurality of air outlet pipes corresponding to all the xenon adsorption boxes one by one, the side wall of the xenon adsorption box is formed with an air outlet, the air outlet pipe connects the side wall of the xenon adsorption box and the rotating frame, and the air outlet pipe is connected to the air outlet.

12. The detection device according to claim 10, characterized in that: The sample changing assembly comprises a fixed frame, a guide plate and a guide rod, the lifting device comprises a cylinder body and a telescopic rod, the cylinder body is arranged on the fixed frame, the guide plate connects the telescopic rod and the guide rod, and the guide rod and the fixed frame slide in cooperation in the up and down directions.

13. The detection device according to claim 1, characterized in that: The detection device comprises a separation component, and the separation component is used to separate a first gas and a second gas in the air. The first gas comprises xenon gas, and the first gas is transported to the xenon adsorption box located at the sampling station.

14. The detection device according to claim 13, characterized in that: The detection device includes a compression and cooling component to which the second gas is delivered. The compression and cooling component is used to compress the second gas to reduce the temperature of the second gas and deliver the cooled second gas to the xenon adsorption box located at the activation station.

15. The detection device according to claim 14, characterized in that: The xenon adsorption box located at the sampling station is used to separate the protective gas from the first gas and transport it to the xenon adsorption box located at the activation station.

16. A detection system, characterized in that: A detection device comprising any one of claims 1 to 15.

Images