Portable iodine filtering device for emergency arrangement of nuclear facility buffer area

Abstract

The invention relates to a portable iodine filtering device for emergency arrangement of a nuclear facility buffer area, and the portable iodine filtering device comprises a purifying device, a plurality of air supply pipes and a connecting air pipe, the purifying device comprises an intelligent controller, an electric power storage unit, an iodine filtering assembly and a fan, the iodine filtering assembly and the fan are stacked from top to bottom, the intelligent controller and the power storage unit are electrically connected with the iodine filtering assembly and electrically connected with the draught fan, the intelligent controller comprises a detection part and a control part, the detection part is used for sensing whether emergency personnel exist in the buffer area or not, and the control part is used for controlling the emergency personnel. And the control part is used for controlling the fan to run or stop. According to the invention, the device can be quickly carried by a single person, and can be mounted and operated in the shortest time in a quick-insertion and quick-connection mounting manner.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear purification, and in particular to a portable iodine filtering device used for emergency deployment in a buffer area of ​​a nuclear facility. Background Art

[0002] After a nuclear accident at a nuclear power plant or nuclear facility causes radioactive materials to leak into the surrounding environment, emergency measures need to be taken to safely control equipment and plant buildings. When emergency personnel enter and exit the safe habitable area (such as the main control room), they will carry radioactive materials into the internal safe area. Therefore, it is necessary to set up small spaces such as buffer areas or passages for emergency personnel to enter and exit. By purifying the gas in the buffer area, the risk of radioactive material diffusion caused by emergency personnel entering and exiting the safe area can be reduced. In addition, in certain special areas of nuclear accident conditions, temporary purification and filtration of radioactive gases are required. When the external power supply is lost, the purification device is not installed in the area, or the space volume of the area is too small to place a mobile purification device, a portable iodine filtration system / device needs to be deployed urgently.

[0003] At present, the iodine filtration systems of nuclear power plants and nuclear facilities in China are usually fixed installation designs, which are large in size and require external power supply. Temporary purification devices such as mobile iodine filtration carts are usually used for radioactive operations in larger spaces. They are also large in size and require external power supply, which is not suitable for small spaces (such as areas of 3-10m2). 2 Although respiratory protective equipment such as iodine masks can provide good protection for emergency personnel, they cannot effectively filter and purify the radioactive gases carried by emergency personnel in and out of safe areas. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide an iodine filtration device. In view of the fact that emergency personnel carry radioactive materials when entering habitable areas under accident conditions of nuclear power plants and nuclear facilities, or other small areas where emergency personnel are active without ventilation and purification systems, temporary gas purification is required, the present invention provides a convenient and lightweight iodine filtration system. The components of the iodine filtration system are portable and can be quickly carried by one person. The quick plug and quick connection installation method can realize the installation and operation of the device in the shortest time. Intelligent start-stop control can effectively extend the use time of the storage unit and ensure that the gas in the area remains clean for a long time.

[0005] According to a first aspect of the present invention, the present invention provides a portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility, comprising: a purification device, the purification device comprising an intelligent controller, a power storage unit, an iodine filtering assembly and a fan, the iodine filtering assembly and the fan are stacked from top to bottom, the intelligent controller and the power storage unit are electrically connected to the iodine filtering assembly, respectively, the intelligent controller and the power storage unit are electrically connected to the fan, the intelligent controller comprises a detection unit and a control unit, the detection unit is used to sense whether there are emergency personnel in the buffer area, and the control unit is used to control the operation or stop of the fan; a multi-way air supply unit, the multi-way air supply unit comprises a plurality of air supply pipes, each of the air supply pipes is provided with a plurality of A detachable hanging connector, the upper surface of which is provided with adhesive backing, and the plurality of air supply pipes are arranged at equal intervals on the top of the buffer area through the adhesive; a connecting air duct, the purification device and the multi-way air supply unit are connected by the connecting air duct through a quick flange; the iodine filter assembly and the fan are connected by the connecting air duct through a quick flange; the control unit of the intelligent controller is configured to set the emergency personnel stay time required for a purification. When someone enters the buffer area, the intelligent controller starts the timing according to the number of times the gas in the buffer area needs to be purified and in combination with the emergency personnel stay time required for a purification, and voice prompts the time when the emergency personnel can leave safely.

[0006] Preferably, the control unit of the intelligent controller is used to control the power storage unit to be automatically connected when the detection unit detects that emergency personnel have entered the buffer area; the control unit of the intelligent controller is used to set a corresponding purification time when the emergency personnel leave the buffer area, and control the power storage unit to be disconnected after the purification time is reached.

[0007] Preferably, the control unit of the intelligent controller sets the purification time according to the number of purification requirements for the gas in the buffer area, the volume of the buffer area and the remaining power of the storage unit; the control unit of the intelligent controller sets the temporary stay time of emergency personnel required for one purification according to the volume of the buffer area, the purified gas flow rate per unit time of the iodine filter component and the remaining power of the storage unit.

[0008] Preferably, when the remaining power of the power storage unit is greater than a first preset value, the temporary stay time of emergency personnel required for one purification is set to t; when the remaining power of the power storage unit is below the first preset value, the temporary stay time of emergency personnel required for one purification is set to at, where 0.1≤a<1.

[0009] Preferably, when the remaining power of the power storage unit is greater than a second preset value, the purification time is set to T; when the remaining power of the power storage unit is less than the second preset value, the purification time is set to bT, where 0.1≤b<1.

[0010] Preferably, the multi-channel air supply unit and the connecting air duct are made of airtight nylon cloth or canvas.

[0011] Preferably, the detection unit of the intelligent controller is a thermal infrared sensor.

[0012] Preferably, the iodine filtering assembly is an integrated combination of an iodine adsorber capable of removing radioactive gaseous iodine and a high efficiency filter capable of removing radioactive aerosol particles.

[0013] Preferably, the iodine filtering component is a combination of a separate iodine adsorber and a high efficiency filter.

[0014] Preferably, the iodine filter assembly is a device in which an adsorption medium with an iodine purification function and a glass fiber filter material for removing aerosol particles are installed in the same box and folded or combined together.

[0015] Any of the above technical solutions of the present invention can achieve at least one of the following beneficial effects:

[0016] According to the portable and lightweight iodine filtration system provided by the present invention, each component of the iodine filtration system adopts a portable design and can be quickly carried by one person. The quick plug and quick connection installation method can realize the installation and operation of the device in the shortest time. The intelligent start-stop control can effectively extend the service life of the storage unit and ensure that the gas in the area remains clean for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention provides a schematic diagram of the connection relationship between the various components of the iodine filtering device.

[0018] Figure 2 The figure is a schematic diagram of the overall structure when the iodine filtering device provided by the present invention is installed in a buffer area.

[0019] Explanation of the reference numerals: 10 - purification device, 20 - multi-way air supply unit, 30 - connecting air duct, 11 - intelligent controller, 12 - power storage unit, 13 - iodine filter assembly, 14 - fan. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments and the accompanying drawings.

[0021] Figure 1 A schematic diagram of the connection relationship between the various components of the iodine filtering device provided by the present invention. Figure 1The iodine filtering device provided by the present invention comprises: a purification device 10, a multi-way air supply unit 20 and a connecting air duct 30. The purification device 10 and the multi-way air supply unit 20 are connected by a connecting air duct 30 through a quick flange. The material of the connecting air duct 30 is airtight nylon cloth or canvas, etc., to achieve a soft connection, which can reduce the volume of the device. The purification device 10 is placed on the ground in a buffer area, and the buffer area is an area where iodine purification is required.

[0022] Furthermore, the multi-channel air supply unit 20 includes a plurality of air supply pipes, which are arranged at equal intervals on the top of the buffer area. The plurality of air supply pipes are a kind of fiber cloth bag air duct, which can be folded and coiled up and placed together with the purification device when in standby. Each of the air supply pipes is provided with a plurality of detachable hanging connectors, and the upper surface of the hanging connector is provided with adhesive. When in use, after being connected with the purification device 10, it is attached to the top of the buffer area through the adhesive on the upper surface of the hanging connector. The material of the plurality of air supply pipes is the same as that of the connecting air duct 30, that is, airtight nylon cloth or canvas, etc.

[0023] Next, the purification device 10 will be further described.

[0024] Purification device 10 further comprises: intelligent controller 11, power storage unit 12, iodine filter assembly 13 and fan 14. Further, iodine filter assembly 13 and fan 14 are stacked from top to bottom. Intelligent controller 11 and power storage unit 12 are electrically connected to iodine filter assembly 13 and fan 14 respectively. Iodine filter assembly 13 and fan 14 are also connected by quick flange with above-mentioned connecting air duct 30 to realize soft connection, which can reduce the volume of device.

[0025] The following describes each component in detail.

[0026] The fan 14 is a centrifugal fan or an axial flow fan with a certain wind pressure. The fan 14 is installed in a hollow metal box, and handles are welded on the front and back of the box to facilitate transportation. The hollow box is convenient for bottom air intake, and also has sufficient support to bear the iodine filter assembly 13 and the storage unit 12.

[0027] The iodine filter assembly 13 is a compact design, which can be an integrated combination of an iodine adsorber capable of removing radioactive gaseous iodine and a high efficiency filter for removing radioactive aerosol particles, a combination of a separate iodine adsorber and a high efficiency filter, or a device in which an adsorption medium (e.g., activated carbon fiber) with an iodine purification function installed in the same box is folded or combined with a glass fiber filter material for removing aerosol particles, or a filter in which an activated carbon fiber filter material and a glass fiber filter material for both iodine purification and aerosol purification are folded as a whole, and no special restrictions are made here. The iodine filter assembly 13 is a movable and portable compact filter device.

[0028] The power storage unit 12 is a portable rechargeable battery, which may be a rechargeable lithium-ion high-performance battery matched with an inverter, or an uninterruptible power supply (UPS) capable of outputting the required voltage and power.

[0029] The intelligent controller 11 is a logic control device, including a detection unit and a control unit. The detection unit can be a thermal infrared sensor or other technical device capable of human body recognition, which is used to sense whether there are emergency personnel in the buffer area. The control unit is used to operate or stop the fan 14.

[0030] When an emergency personnel enters the buffer area, the detection unit detects that the emergency personnel have entered the buffer area, the control unit controls the power storage unit 12 to automatically turn on, the fan 14 runs, and the radioactive gas brought in by the emergency personnel is purified by the iodine filter assembly 13. Further, the control unit of the intelligent controller 11 sets the temporary stay time of the emergency personnel required for purification once. When someone enters the buffer area, the control unit of the intelligent controller 11 starts the timing according to the number of times the gas in the buffer area needs to be purified, and in combination with the temporary stay time of the emergency personnel required for purification once, and voice prompts the time when the emergency personnel can safely leave the buffer area. Further, the control unit of the intelligent controller 11 sets the temporary stay time of the emergency personnel required for purification once according to the volume of the buffer area, the purified gas flow rate per unit time of the iodine filter assembly, and the remaining power of the power storage unit 12. The temporary stay time of emergency personnel required for one purification is different according to the remaining power of the power storage unit 12. For example, when the remaining power of the power storage unit 12 is greater than the first preset value (for example, 50%), the temporary stay time of emergency personnel required for one purification is set to t, that is, the battery power is not considered at this time, and the temporary stay time of emergency personnel required for one purification is set based on the maximum purification effect. When the remaining power of the power storage unit 12 is below the first preset value (for example, 50%), the temporary stay time of emergency personnel required for one purification is set to at (where 0.1≤a<1), that is, at this time, the temporary stay time of emergency personnel required for one purification is reduced accordingly based on ensuring that the remaining power of the battery is sufficient for the entire purification process. According to the above setting, it is possible to save power when the remaining power is small, and an ultra-long working cycle can be achieved.

[0031] When the emergency personnel leave the buffer area, the control unit of the intelligent controller 11 first sets the corresponding purification time, and then controls the storage unit 12 to disconnect after the purification time is reached. At this time, the fan is shut down and the purification device 10 stops working. Further, the control unit of the intelligent controller 11 sets the purification time according to the purification times required for the gas in the buffer area, the volume of the buffer area and the remaining power of the storage unit 12. The purification time varies according to the remaining power of the storage unit 12. For example, when the remaining power of the storage unit is greater than the second preset value (for example, 50%), the purification time is set to T, that is, the battery power is not considered at this time, and the above purification time is set based on the maximum purification effect. When the remaining power of the storage unit 12 is less than the second preset value (for example, 50%), the above purification time is set to bT (where 0.1≤b<1), that is, at this time, the above purification time is reduced accordingly based on ensuring that the remaining power of the battery is sufficient for the entire purification process. According to the above setting, it is possible to save power when the remaining power is small, and an ultra-long working cycle can be achieved.

[0032] Optionally, the intelligent controller 11 may also be other control components or systems that can determine the entry and exit of emergency personnel. The control unit of the intelligent controller 11 may also control the fan 14 to enter an uninterrupted continuous operation state.

[0033] The structure of the iodine filtering device provided by the present invention is described above. Figure 2 The working principle of the iodine filtering device provided by the present invention is described. Figure 2 The figure is a schematic diagram of the overall structure when the iodine filtering device provided by the present invention is installed in a buffer area.

[0034] When a radioactive gas leak occurs in a nuclear power plant or nuclear facility, it is believed that radioactive materials exist outside the habitable area (safe area). When emergency personnel enter and exit the boundary gate of the habitable area, they will inevitably carry radioactive gaseous materials into the habitable area, causing the invasion of radioactive gaseous materials in the safe area. Therefore, it is necessary to set up a buffer area at the boundary of the safe area, and purify the gas in the buffer area to reduce the intrusion of radioactive gas caused by emergency personnel entering and exiting the safe area. The buffer area is an enclosed space area that can be entered and exited from both sides. When the emergency personnel enter the buffer area (at this time, the buffer area is restored to form a closed space), the detection unit of the intelligent controller 11 detects that the emergency personnel have entered the buffer area. At this time, the control unit of the intelligent controller 11 controls the storage unit 12 to automatically turn on, the fan 14 runs, and the purification device 10 starts working. The purification device 10 placed on the ground of the buffer area draws radioactive gas from the ground into the iodine filter assembly 13. The radioactive aerosol and radioactive gaseous iodine carried by the emergency personnel are filtered and adsorbed by the high-efficiency filter and iodine adsorber in the iodine filter assembly 13. The purified pollution-free air passes through the connecting air duct 30 connecting the purification device 10 and the multi-way air supply unit 20, and finally returns to the buffer area again through the multi-way air supply unit 20 arranged at the top of the buffer area. Figure 2 , where the hollow arrows show the circulation direction of the airflow, the gas first enters the fan 14 from the bottom of the closed area of ​​the buffer area, is purified by the iodine filter component 13, and is then discharged from the multi-way air supply unit 20 at the top, thereby forming a closed airflow cycle in the buffer area.

[0035] When the operation time of the purification device 10 reaches the time limit set by the intelligent controller 11, it indicates that the number of gas purifications in the buffer area meets the set requirements and meets the safety regulations. At this time, the intelligent controller 11 voice reminds the emergency personnel that they can safely enter the habitable area. After the emergency personnel leave the buffer area, the control unit of the intelligent controller 11 controls the power storage unit 12 to disconnect after a period of time (i.e., the above-mentioned purification time), the fan 14 stops, and the purification device 10 stops working. The delayed disconnection of the power storage unit 12 can effectively reduce the concentration of radioactive substances diffused into the buffer area when the emergency personnel leave the habitable area, thereby reducing the radioactive substances entering the habitable area through the buffer area. When no emergency personnel pass through the buffer area for a long period of time, the control unit of the intelligent controller 11 controls the purification device 10 to automatically run for a certain length of time or period according to the set purification time to ensure the purification of radioactive iodine that may invade the buffer area during the time period when no emergency personnel enter or exit.

[0036] The iodine filtering device provided by the present invention is controlled by the control unit of the intelligent controller 11, and is only started and operated according to the prescribed time or period when emergency personnel enter and exit the buffer area, and when emergency personnel enter and exit for a long time, and remains in a shutdown state during the rest of the time period. Through such intelligent control, the power storage unit 12 can achieve an ultra-long working cycle (such as 5-7 days) under the condition that the continuous operating time is limited (such as 7-10 hours) after a complete charge.

[0037] The following describes the operation process of the iodine filtering device provided by the present invention for three situations: emergency personnel entering the safe habitable area through the buffer area, emergency personnel leaving the safe habitable area through the buffer area, and emergency personnel entering and exiting the safe habitable area without passing through the buffer area for a long time.

[0038] Example 1: Operation process of the iodine filtration device for emergency personnel entering the safe habitable area through the buffer area.

[0039] ⅠAfter the emergency personnel enter the buffer area, the buffer area is restored to form a closed airtight area;

[0040] Ⅱ The detection unit of the intelligent controller 11 senses that a person has entered the buffer area, and the control unit of the intelligent controller 11 controls the power storage unit 12 to be turned on and the fan 14 to be started. At this time, the airflow containing radioactive substances is sucked into the purification device 10 from the bottom of the buffer area, and after being purified by the purification device 10, it returns to the buffer area again through the multi-way air supply unit 20 at the top of the buffer area, forming a closed airflow circulation loop;

[0041] III The intelligent controller 11 sets the temporary stay time of emergency personnel required for one purification. When the required purification time is reached, the voice prompts the emergency personnel to leave the buffer area and enter the safe habitable area;

[0042] IV After the emergency personnel leave the buffer area, the detection unit of the intelligent controller 11 detects that there are no emergency personnel in the area. The control unit of the intelligent controller 11 first sets a corresponding purification time. After the purification time, the power circuit is disconnected, and the gas purification process for the emergency personnel to enter the safe habitable area through the buffer area ends.

[0043] Example 2: Operation process of the iodine filtration device when emergency personnel leave the safe habitable area through the buffer area.

[0044] Ⅰ After the emergency personnel enter the emergency personnel passage buffer area from the habitable safe area, the buffer area is restored to form a closed airtight area;

[0045] II The detection unit of the intelligent controller 11 senses that a person has entered the buffer area, and the control unit of the intelligent controller 11 controls the power storage unit 12 to be turned on, the fan 14 to be started, and the purification device 10 to enter the operating state;

[0046] Ⅲ Emergency personnel who enter the buffer area do not need to wait to leave the buffer area, and the buffer area is restored to form a closed airtight area. The intelligent controller determines that the state is that the emergency personnel have left based on the length of time the emergency personnel have stayed. At this time, although the detection unit of the intelligent controller 11 does not detect the presence of emergency personnel in the buffer area, the control unit of the intelligent controller 11 continues to control the power storage unit 12 to be in the on state. The control unit of the intelligent controller 11 first sets the corresponding purification time to keep the purification device 10 running. The control unit of the intelligent controller 11 sets the purification time based on the volume of the buffer area and the number of gas purification times in the buffer area.

[0047] IV When the operation of the purification device 10 reaches the set purification time, the control unit of the intelligent controller 11 controls the power storage unit 12 to disconnect, and the gas purification process of the emergency personnel leaving the safe habitable area through the buffer area ends.

[0048] Example 3: Operation process of the iodine filtration device when emergency personnel enter and exit the safe habitable area without buffering area for a long time.

[0049] Ⅰ After the gas purification process of emergency personnel entering and exiting the safe habitable area through the buffer area is completed, the control unit of the intelligent controller 11 starts the countdown mode;

[0050] II. If the detection unit of the intelligent controller 11 does not detect that the emergency personnel enter the buffer area within the set time period, the intelligent controller 11 controls the power storage unit 12 to be turned on, the fan 14 to start, and the purification device 10 to enter the operating state (in this process, be careful to prevent a small leak in the buffer area, which may cause the peripheral radioactive gas to enter the buffer area);

[0051] III. The control unit of the intelligent controller 11 sets the purification time. When the operation of the purification device 10 reaches the set purification time, the control unit of the intelligent controller 11 controls the power storage unit 12 to be disconnected and the fan 14 to be stopped;

[0052] IV The gas purification process of the buffer area where no emergency personnel enter or exit the safe habitable area through the buffer area for a long period of time is completed.

[0053] According to the portable and lightweight iodine filtration system provided by the present invention, each component of the iodine filtration system adopts a portable design and can be quickly carried by one person. The quick plug and quick connection installation method can realize the installation and operation of the device in the shortest time. The intelligent start-stop control can effectively extend the service life of the storage unit and ensure that the gas in the area remains clean for a long time.

[0054] The above is a description of the embodiments of the present invention. The above embodiments are merely illustrative of the present invention, and the present invention may also be implemented in other specific ways or other specific forms without departing from the gist or essential features of the present invention. Therefore, the described embodiments should be considered illustrative rather than restrictive in any respect. The scope of the present invention should be described by the attached claims, and any changes equivalent to the intent and scope of the claims should also be included in the scope of the present invention.

Claims

1. A portable iodine filter device for emergency deployment in a nuclear facility buffer area, characterized in that: include: A purification device, the purification device comprising an intelligent controller, a power storage unit, an iodine filter assembly and a fan, the iodine filter assembly and the fan are stacked from top to bottom, the intelligent controller and the power storage unit are electrically connected to the iodine filter assembly, respectively, the intelligent controller and the power storage unit are electrically connected to the fan, the intelligent controller comprises a detection unit and a control unit, the detection unit is used to sense whether there are emergency personnel in the buffer area, and the control unit is used to control the operation or stop of the fan; A multi-way air supply unit, the multi-way air supply unit comprising a plurality of air supply pipes, each of the air supply pipes being provided with a plurality of detachably connected hanging connectors, the upper surface of the hanging connectors being provided with adhesive, and the plurality of air supply pipes being arranged at equal intervals on the top of the buffer area through the adhesive; A connecting air duct, wherein the purification device and the multi-channel air supply unit are connected by the connecting air duct through a quick flange; The iodine filter assembly and the fan are connected by the connecting air duct through a quick flange; The control unit of the intelligent controller is configured to set the temporary stay time for emergency personnel required for a purification operation. When someone enters the buffer area, the intelligent controller starts timing according to the number of times the gas in the buffer area needs to be purified and the temporary stay time for emergency personnel required for a purification operation, and gives a voice prompt of the time when the emergency personnel can leave safely.

2. The portable iodine filtering device for emergency deployment in a nuclear facility buffer area according to claim 1, characterized in that: The control unit of the intelligent controller is used to control the power storage unit to automatically turn on when the detection unit detects that an emergency personnel has entered the buffer area; The control unit of the intelligent controller is used to set a corresponding purification time when the emergency personnel leave the buffer area, and then control the power storage unit to be disconnected after the purification time is reached.

3. The portable iodine filtering device for emergency deployment in a nuclear facility buffer area according to claim 2, characterized in that: The control unit of the intelligent controller sets the purification time according to the number of purification times required for the gas in the buffer area, the volume of the buffer area and the remaining power of the power storage unit; The control unit of the intelligent controller sets the temporary stay time of the emergency personnel required for one purification according to the volume of the buffer area, the purified gas flow rate per unit time of the iodine filter component and the remaining power of the power storage unit.

4. The portable iodine filtering device for emergency deployment in a nuclear facility buffer area according to claim 3, characterized in that: When the remaining power of the power storage unit is greater than a first preset value, the emergency personnel stay time required for the purification is set to t; When the remaining power of the power storage unit is less than the first preset value, the emergency personnel stay time required for the purification is set to at, where 0.1≤a<1.

5. The portable iodine filtering device for emergency deployment in the buffer area of ​​a nuclear facility according to claim 3, characterized in that: When the remaining power of the power storage unit is greater than a second preset value, setting the purification time to T; When the remaining power of the power storage unit is less than the second preset value, the purification time is set to bT, where 0.1≤b<1.

6. The portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility according to any one of claims 1 to 4, characterized in that: The multi-channel air supply unit and the connecting air duct are made of airtight nylon cloth or canvas.

7. The portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility according to any one of claims 1 to 5, characterized in that: The detection part of the intelligent controller is a thermal infrared sensor.

8. The portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility according to any one of claims 1 to 5, characterized in that: The iodine filter assembly is an integrated combination of an iodine adsorber capable of removing radioactive gaseous iodine and a high efficiency filter capable of removing radioactive aerosol particles.

9. The portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility according to any one of claims 1 to 5, characterized in that: The iodine filtering component is a combination of a separate iodine adsorber and a high efficiency filter.

10. The portable iodine filtering device for emergency deployment in a buffer area of ​​a nuclear facility according to any one of claims 1 to 5, characterized in that: The iodine filter assembly is a device in which an adsorption medium with an iodine purification function and a glass fiber filter material for removing aerosol particles are installed in the same box and folded or combined together.

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