Personnel decontamination and purification system

Abstract

The invention provides a decontamination and purification system for reducing radioactive substances carried by emergency personnel, which comprises an auxiliary adhesion part, a decontamination and purification device and a residence area attachment part, and is characterized in that the auxiliary adhesion part is used for adhering the radioactive solid substances carried by the soles of the emergency personnel; the decontamination and purification device is used for forming a closed purification space, blowing personnel entering the decontamination and purification device and purifying air in the decontamination and purification device; and the residence area attachment part is used for connecting the decontamination and purification device and the main control room and is used as a buffer area between the decontamination and purification device and the main control room. By arranging the airtight buffering and purifying area, invasion of peripheral radioactive gas when people enter and exit from the safe area is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of safety protection technology, and in particular to a personnel decontamination and purification system leading to a habitable area of ​​a main control room under accident conditions of a nuclear power plant. Background Art

[0002] The main control room of a nuclear power plant is the hub of the overall status control of the nuclear power plant. Under the condition that the peripheral environment of a nuclear accident is contaminated by radioactive and toxic substances, the habitability of the main control room area must be ensured.

[0003] Under accident conditions, the main control room area forms a slight positive pressure to ensure that the amount of radioactive gaseous pollutants entering the main control room is lower than the specified requirements. Taking the AP1000, a third-generation nuclear power unit, as an example, a buffer transition area is set up before entering the main control room. By continuously purging with clean air, the radioactive gaseous substances carried by personnel when entering the buffer zone are diluted to a lower level to reduce the radiation risk brought by personnel entering and leaving the main control room.

[0004] However, when the second-generation and second-generation and a half units were first designed, they did not fully consider the radioactive materials carried by personnel when entering and leaving the habitable area of ​​the main control room, which would cause certain radiation damage to emergency personnel.

[0005] Under the nuclear accident conditions of the second-generation nuclear power units, a personnel disinfection and purification system can be set up at the entry and exit boundaries of the main control habitable area to avoid the risk of internal leakage of radioactive materials caused by direct entry and exit of personnel.

[0006] In addition, in some other special fields, including nuclear, biological and chemical sites, temporary battlefield rescue cabins, rescue command centers and other on-site emergency areas in environments with excessively high radioactive materials, pathogenic microorganisms and lethal chemical poisons, it is necessary to ensure that no internal leakage of filtered air occurs.

[0007] To ensure that unexpected risks are eliminated, corresponding gas purification buffer areas should also be set up in front of these emergency equipment.

[0008] Therefore, the personnel disinfection and purification system used in the above special fields is particularly important. Summary of the invention

[0009] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a personnel decontamination and purification system, which effectively reduces the intrusion of external radioactive gases when personnel enter and exit the safe area by setting up an airtight buffer purification area.

[0010] To achieve the above-mentioned object, the present invention provides a personnel decontamination and purification system, comprising an auxiliary adhesion portion, a decontamination and purification device, and a habitable area attachment portion, wherein:

[0011] The auxiliary adhesive part is used to adhere the radioactive solid materials carried by the emergency personnel on the soles of their shoes;

[0012] The decontamination and purification device is used to form a closed purification space, purge the personnel entering and purify the air inside the decontamination and purification device;

[0013] A habitable area attachment portion, used to connect the decontamination and purification device and the main control room, and used as a buffer area between the decontamination and purification device and the main control room;

[0014] The decontamination and purification device includes a decontamination room body, a personnel entry-exit control unit, a gas purification unit, and a lighting unit. The decontamination room body is an air rib structure, including an outer protective structure, an intermediate air rib support structure, and an internal airtight material layer. The intermediate air rib support structure is designed to form a three-dimensional decontamination and purification space when the pressure in the air rib reaches a set value. The decontamination and purification space is designed to be any one of a cube, a rectangular parallelepiped, and an arched three-dimensional structure.

[0015] The gas purification unit includes a gas purifier and a gas purification pipeline. The gas purifier is equipped with an iodine filter and a high-efficiency filter for filtering out radioactive iodine and radioactive aerosols.

[0016] Furthermore, the outer protective structure is made of flame-retardant, fire-proof and puncture-proof materials, the middle air rib support structure is formed of TPU composite fiber cloth and includes an inflation port and a pressure relief valve, and the inner airtight material layer is TPU composite fiber cloth coated with polyurethane that can block air.

[0017] Furthermore, the decontamination and purification device also includes an air column inflation unit for inflating the intermediate air rib support structure, and the air column inflation unit is a high-pressure gas cylinder filled with nitrogen and / or liquid carbon dioxide gas.

[0018] Furthermore, the decontamination and purification device also includes an air rib pressure maintaining unit, including a gas pressure switch, a high-pressure gas source and an air pump. The gas pressure switch is installed on the intermediate air rib support structure and is configured as follows: when the pressure of the intermediate air rib support structure is lower than the set requirement, the gas pressure switch is activated to power on the air pump to inflate the intermediate air rib support structure; when the pressure of the intermediate air rib support structure is higher than the set requirement, the gas pressure switch is activated to power off the air pump and end inflation.

[0019] Furthermore, a gas release device, a gas distributor, and a normally closed one-way pressure valve are sequentially connected between the air column inflation unit and / or the air rib pressure maintaining unit and the inflation joint of the intermediate air rib supporting structure through a gas pipeline, wherein the gas release device is a gas release cap.

[0020] Furthermore, an entrance and an exit are formed on opposite sides of the main body of the disinfection room. The entrance is used for personnel to enter, and a zipper-type airtight door and a magnetic sealing door are installed in sequence from the outside to the inside. The exit is used for personnel to leave after disinfection and purification, and a magnetic sealing door and a zipper-type airtight door are installed in sequence from the inside to the outside.

[0021] Furthermore, an air curtain forming unit is arranged on the inner side of the magnetic sealing door of the entrance. The air curtain forming unit is configured to spray air flow from top to bottom to form an air curtain when it detects that the entrance is opened, so as to block the outside gas from diffusing into the main body of the disinfection room, wherein the air curtain forming unit is supplied with air by the gas purification unit.

[0022] Furthermore, the personnel entry-exit control unit includes an entry prompt button, a personnel entry indicator light, a personnel exit indicator light, a voice broadcast module, a control module, an infrared detection sensor, a device standby indicator light, and an exit prompt button, wherein:

[0023] The entry prompt button is set on the side of the entrance of the main body of the decontamination room. When emergency personnel need to enter the decontamination and purification device, they press the entry prompt button;

[0024] The departure prompt button is set in the main control room. When the emergency personnel need to leave the main control room and enter the decontamination and purification device, they press the departure prompt button;

[0025] A personnel entry indicator light is provided at the entrance side of the main body of the decontamination room. When the emergency personnel press the entry prompt button, the control module controls the personnel entry indicator light to turn green and controls it to go out after the personnel leave.

[0026] The personnel leaving indicator light is arranged at the exit side of the main body of the decontamination room. When the emergency personnel press the entry prompt button, the control module controls the personnel leaving indicator light to turn red and controls it to go out after the personnel leave.

[0027] The control module is configured to control a personnel entry indicator light, a personnel exit indicator light, a voice broadcast module, a device standby indicator light, and a gas purification unit;

[0028] The voice broadcast module is configured to make voice broadcasts according to the instructions of the control module to prompt personnel;

[0029] The infrared detection sensor is configured to detect the presence of a person and transmit a signal of the presence of a person to the control module, and the control module controls the start and stop of the gas purification unit according to the signal of the presence of a person;

[0030] The device standby indicator light is used to indicate that the cleaning and purification device is in a standby state.

[0031] Furthermore, when the emergency personnel press the exit prompt button, the control module controls the personnel entry indicator light to turn red and controls the personnel exit indicator light to turn green to prevent personnel at the entrance side from entering.

[0032] Furthermore, the data processing system of the gas purification unit operates in a countdown manner based on the volume of the internal space of the cleaning and purification device and the number of gas purification times in the area.

[0033] Compared with the prior art, the personnel decontamination and purification system of the present invention has the following beneficial effects:

[0034] (1) The activity concentration of gaseous radioactive iodine and aerosols carried by emergency personnel in and out of habitable areas is reduced to less than 1%;

[0035] (2) The amount of unfiltered air carried by emergency personnel in and out of habitable areas is less than 1m 3 / h (For example, the AP1000 crew in and out carrying capacity is 17m 3 / h).

[0036] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0038] Figure 1 A schematic diagram of a personnel decontamination and purification system of the present invention is shown;

[0039] Figure 2 This is a schematic diagram of a commonly used gas rib structure;

[0040] Figure 3 A schematic diagram of an inflation circuit of an intermediate gas rib support structure is shown, wherein the broken line on the right indicates that the structure is an intermediate gas rib support structure;

[0041] Figure 4 This is the structural block diagram of the personnel entry and exit control unit. DETAILED DESCRIPTION

[0042] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0043] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0044] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0045] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more". "Plurality" should be understood as two or more.

[0046] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0047] Figure 1 A schematic diagram of the personnel decontamination and purification system of the present invention is shown, which comprises Figure 1 It can be seen that the personnel decontamination and purification system of the present invention includes an auxiliary adhesion part 10, a decontamination and purification device 20, and a habitable area attachment part 30, wherein the auxiliary adhesion part 10 is arranged at the inlet side of the decontamination and purification device 20, the habitable area attachment part 30 is arranged at the outlet side of the decontamination and purification device 20, and the other side of the habitable area attachment part 30 is attached to the main control room (not shown). The main control room can be the main control room of a nuclear power plant, or a field hospital under nuclear, biological and chemical conditions, a pre-battle rescue cabin, a temporary command center, and other places where it is necessary to ensure that the access passage is free of toxic gas intrusion.

[0048] It should be noted that the direction in which personnel enter the main control room through the cleaning and purification device 20 and the habitable area attachment part 30 is called the entry direction, and the direction in which personnel come out of the main control room and leave through the habitable area attachment part 30 and the cleaning and purification device 20 is called the exit direction.

[0049] The auxiliary adhesive part 10 is used to remove radioactive solid materials carried on the soles of emergency personnel. It has adhesiveness and is preferably set as a disposable item. A disposable shoe cover is placed in the cleaning and purification device to further avoid the spread of radioactive materials carried on the soles of emergency personnel in the main control room.

[0050] The cleaning and purification device 20 is used to form a closed purification space, to perform a purge operation on the people entering and to purify the air inside the cleaning and purification device at the same time.

[0051] The habitable area attachment portion 30 is used to connect the cleaning and purification device 20 and the main control room, and serves as a buffer area between the cleaning and purification device 20 and the main control room. Figure 1 As shown, the habitable area attachment portion 30 is in the form of a skirt cloth, the folds of the cloth are connected to the cleaning and disinfection device 20, and the expanded edge is connected to the cleaning and disinfection device 20 on the outlet side. Strong double-sided tape is bonded to the expanded edge, and the expanded edge is sealed and bonded to the cleaning and disinfection device 20 on the outlet side during installation.

[0052] In a specific embodiment, the decontamination and purification device 20 of the personnel decontamination and purification system of the present invention includes a decontamination room body 201, a gas purification unit 202, a personnel entry-exit control unit 203, an air column inflation unit, an air rib pressure maintaining unit and a lighting unit.

[0053] The main body 201 of the decontamination chamber is an air rib structure, including an outer protective structure, an intermediate air rib support structure and an inner airtight material layer, wherein the air ribs of the air rib structure of the main body 201 of the decontamination chamber are interconnected. Figure 2 A commonly used air rib structure is shown, which only includes an outer protective structure and an intermediate air rib support structure. The difference of this application is that an inner airtight material layer is also provided. Specifically, the outer protective structure is made of flame retardant, fire retardant and puncture resistant materials; the intermediate air rib support structure is formed of TPU composite fiber cloth, and the intermediate air rib support structure includes an inflation port and a pressure relief valve (such as Figure 3 As shown in the figure 39, when the pressure exceeds the design upper limit, the gas overflows through the pressure relief valve to ensure that the pressure in the intermediate gas rib support structure is within the allowable range; the internal airtight material layer is TPU composite fiber cloth, which is coated with polyurethane that can block air. TPU composite fiber cloth has heterogeneity, anisotropy, large deformation ability and nonlinear mechanical behavior, which is suitable for the structural requirements of the present invention.

[0054] In order to prevent people from slipping, anti-skid and wear-resistant materials are added to the bottom of the disinfection room body 201.

[0055] The intermediate air rib support structure is designed to form a three-dimensional cleaning and purification space 201A when the pressure in the air rib reaches a set value. The cleaning and purification space can be any one of a cube, a rectangular parallelepiped and an arched three-dimensional structure.

[0056] In a specific embodiment, the intermediate air rib support structure can be reinforced with a triangular shape on both sides and the top in the entry and exit direction to prevent deformation.

[0057] It is understandable that in order to inflate the middle air rib support structure of the decontamination room body 201, the decontamination room body is also equipped with an air column inflation unit, and the air column inflation unit is, for example, a high-pressure gas cylinder 204. Preferably, the high-pressure gas cylinder is also equipped with a venturi tube ejector for sucking the surrounding environment gas for rapid construction.

[0058] In order to maintain the supporting stability of the intermediate air rib supporting structure, the main body of the decontamination room is also equipped with an air rib pressure maintaining unit, which may be, for example, a portable air pump or a high-pressure gas cylinder.

[0059] The high pressure gas cylinder is filled with nitrogen and / or liquid carbon dioxide mixed gas. A bottom inserting conduit 34 (also called siphon) is arranged in the high pressure gas cylinder, and nitrogen and / or liquid carbon dioxide is directly and quickly injected into the middle gas rib support structure from the bottom under the pressure in the cylinder.

[0060] It can be understood that the intermediate gas rib support structure of the decontamination chamber body 201 is additionally provided with a gas pressure switch, and the gas pressure switch is configured as follows: when the pressure of the intermediate gas rib support structure is lower than the set requirement, the gas pressure switch is activated, so that the inflation pump is powered on to inflate the intermediate gas rib support structure; when the pressure of the intermediate gas rib support structure is higher than the set requirement, the gas pressure switch is activated, so that the inflation pump is powered off and inflation is terminated. By additionally providing a gas pressure switch and an inflation unit, it is possible to prevent the gas pressure of the decontamination chamber body 201 from being too low and causing structural deformation.

[0061] The air column inflation unit and the air rib pressure maintaining unit can use different high-pressure gas cylinders or the same high-pressure gas cylinders. When using the same high-pressure gas cylinders, the high-pressure gas cylinders are only responsible for quickly inflating the intermediate air rib support structure, and maintaining the stability of the gas pressure is achieved by a small air pump that is realized by a portable power supply and a pressure switch.

[0062] Additionally, if Figure 3 As shown, a gas release device 36, a gas distributor 37, and a normally closed one-way pressure valve 38 are connected in sequence between the gas column inflation unit and / or the gas rib pressure maintaining unit (high-pressure gas cylinder 204) and the inflation joint 35 (with a check function) of the intermediate gas rib supporting structure through a gas pipeline. The gas release device 36 is, for example, a gas release cap, which is attached to the high-pressure gas cylinder 204 (i.e., the gas column inflation unit and / or the gas rib pressure maintaining unit).

[0063] When the air column inflation unit is used for inflation, the gas release device is quickly opened by means of an inflation cable (i.e., by pulling the cable, connecting the high-pressure gas cylinder to start inflating the air rib), and the high-pressure gas breaks through the one-way pressure valve, and the gas quickly enters the middle air rib support structure to complete the inflation. When the gas pressure in the air column inflation unit is reduced to the one-way pressure valve opening threshold, the one-way pressure valve is closed, the inflation of the middle air rib support structure is completed, and the air column inflation unit is disconnected from the middle air rib support structure.

[0064] It can be understood that an entrance 2011 and an exit 2012 are formed on opposite sides of the disinfection room body 201. The entrance 2011 is used for personnel to enter, and the entrance 2011 is sequentially installed with a zipper-type airtight door and a magnetic sealing door, wherein the zipper-type airtight door is arranged on the outside and the magnetic sealing door is arranged on the inside; the exit 2012 is used for personnel to leave after disinfection and purification, and the exit 2012 is sequentially installed with a magnetic sealing door and a zipper-type airtight door, wherein the magnetic sealing door is arranged on the inside and the zipper-type airtight door is arranged on the outside.

[0065] In order to enhance the isolation effect between the main body 201 of the disinfection room and the outside world, an air curtain forming unit (not shown) is also arranged on the inner side of the magnetic sealing door of the entrance 2011. The air curtain forming unit is configured to spray air from top to bottom when it detects that the entrance is opened, thereby forming an air curtain, which is used as an air curtain and can effectively block the outside gas from diffusing into the main body of the disinfection room, wherein the air curtain forming unit is supplied with air by the gas purification unit.

[0066] In order to increase the stability of the main body of the decontamination room, anchor points are set at the four corners of the main body of the decontamination room, and the bottom of the main body of the decontamination room is bonded to the ground with double-sided tape to make the ground and the bottom TPU material of the main body of the decontamination room bonded. Alternatively, strips can be extended from the four corners of the main body of the decontamination room to fix the strips by tying, gluing, etc., so as to fix the main body of the decontamination room.

[0067] A portable gas purification unit 202 is provided in the decontamination and purification space 201A inside the main body 201 of the decontamination room, which can quickly realize the circulation and purification of the gas in the area. The gas purification unit 202 can be set to run continuously or to run intermittently according to the entry and exit of personnel. If the gas purification unit 202 is set to run continuously, a power on-off switch is set on the outside of the entrance 2011 and the exit 2012 of the main body 201 of the decontamination room to run the gas purification unit 202 at a set time to ensure that the radioactive substances carried by the personnel entering and leaving are purified to a sufficiently low safety concentration. If the gas purification unit 202 is set to run intermittently according to the entry and exit of personnel, an infrared switch is set in the decontamination and purification space 201A inside the main body 201 of the decontamination room to automatically start and stop the gas purification unit by sensing the infrared rays of the human body.

[0068] The gas purification unit 202 includes a gas purifier and a gas purification pipeline. When the gas purifier is working, it blows out purified air and inhales ambient air in the decontamination and purification space. The gas purifier also supplies air to the air curtain. The gas purification pipeline can be arranged inside the decontamination room body or on its surface as needed.

[0069] The gas purifier is equipped with an iodine filter and a high-efficiency filter to filter out radioactive iodine and radioactive aerosols. The radioactive iodine and aerosol purification coefficient of the selected gas purifier is greater than 1000, and the adsorption efficiency is greater than 99.9%.

[0070] The cleaning and purification device is also provided with a personnel entry-exit control unit 203. Figure 4 The structural block diagram of the personnel entry-exit control unit is as follows: Figure 4 As shown, the personnel entry-exit control unit 203 includes an entry prompt button 2031, a personnel entry indicator light 2032, a personnel exit indicator light 2033, a voice broadcast module 2034, a control module 2035, an infrared detection sensor 2036, a device standby indicator light 2037, and a exit prompt button 2038, wherein the entry prompt button 2031 is arranged on the side of the entrance 2011 of the disinfection room body 201, and the exit prompt button 2038 is arranged in the main control room. A personnel entry indicator light 2032 is provided on the entrance side of the disinfection room body 201, and a personnel departure indicator light 2033 is provided on the exit side of the disinfection room body 201. The personnel entry indicator light 2032 has two working states, one is a green state, indicating that personnel on the entrance side can enter safely, and the other is a red state, indicating that personnel on the entrance side are prohibited from entering; the personnel departure indicator light 2033 also has two working states, one is a green state, indicating that personnel on the exit side can enter the disinfection and purification device, and the other is a red state, indicating that personnel in the disinfection and purification device are prohibited from leaving from the exit.

[0071] When a person enters the decontamination and purification device, the actions of the person entering and leaving the control unit are described as follows:

[0072] The person entering presses the entry prompt button 2031. After the control module 2035 detects that the entry prompt button 2031 is pressed, the personnel entry indicator light 2032 on the entrance side is controlled to be green, indicating that a person has entered, and the personnel exit indicator light 2033 on the exit side is controlled to be red, indicating that people are prohibited from leaving. At the same time, the control module 2035 sends a play instruction to the voice broadcast module 2034 to play a prompt about the person entering, for example, the voice prompt "People enter the main control room, people in the main control room are prohibited from leaving."

[0073] The entrant opens the zipper-type airtight door and the magnetic sealing door provided on the outside of the entrance of the main body 201 of the disinfection room in sequence to enter the disinfection and purification space 201A.

[0074] After the control module 2035 receives the signal from the infrared detection sensor 2036 detecting the entry of a person, it controls the portable gas purification unit 202 to start running, or alternatively, when the control module detects that the entry prompt button 2031 is pressed, it controls the portable gas purification unit 202 to start running.

[0075] The data processing system of the gas purification unit 202 operates in a countdown manner based on the volume of the disinfection and purification space and the number of gas purifications in the area: when the gas purification in the disinfection and purification space reaches the required number of times, the data processing system prompts emergency personnel through voice that they can safely enter the main control habitable area.

[0076] When all personnel have left the cleaning and disinfection purification device, the control module 2035 controls the gas purification unit 202 to stop running, and controls the personnel entry indicator light 2032 on the entrance side and the personnel departure indicator light 2033 on the exit side to go out, and controls the device standby indicator light 2037 on both sides of the entrance and exit to light up, and the cleaning and disinfection purification device enters the standby state.

[0077] When a person comes out of the main control room and leaves through the decontamination and purification device, the actions of the person entering and leaving the control unit are described as follows:

[0078] The person leaving presses the exit indication button 2038 on the exit side, and the control module 2035 detects that the exit prompt button 2038 is pressed, controls the exit indicator light 2033 to turn green, controls the entrance indicator light 2032 to turn red, and at the same time controls the voice broadcast module to broadcast the corresponding prompt that the person needs to leave, such as the voice prompt "The person has left the main control room, and outsiders are not allowed to enter."

[0079] The personnel enter the cleaning and purification device 20 through the main control room and the habitable area attachment part 30 in turn. After all the personnel enter, the exit is closed, and the cleaning and purification device 20 forms an independent closed area. The control module 2035 controls the exit side personnel exit indicator 2033 to turn red. At this time, the indicator lights on both sides are red, and personnel are prohibited from leaving.

[0080] The control module 2035 controls the gas purification unit 202 to start, and the personnel leaving the cleaning and purification device 20 can leave the cleaning and purification device 20 through the magnetic suction door and the airtight door on the outside of the entrance in turn without waiting.

[0081] After all personnel have left, the cleaning and purification device 20 is restored to form an independent closed area, and the device standby indicator light on the entrance side lights up green.

[0082] Alternatively, after all personnel have left, the gas purification unit can be used to perform purification operation for a set time. When the set time is reached, the gas purification unit stops running, the voice prompt ends, the device standby indicator lights on the inlet and outlet sides of the cleaning and purification device light up, and the cleaning and purification device is standby.

[0083] It should be noted that in the early stage of the accident, personnel frequently entered and exited the main control room, and the continuous entry or exit process can only be operated according to the above complete process. When the leaving personnel and the entering personnel enter and exit at the same time, there is always a risk of unfiltered radioactive gas intrusion in the decontamination device, so the leaving personnel can enter the decontamination device directly after the entering personnel press the "enter" switch.

[0084] In order to provide clear guidance for people entering and leaving, there are obvious "entry" and "exit" arrows on the disinfection and purification device, and warning lights are installed around the device.

[0085] It is understandable that the cleaning and decontamination device 20 also includes a lighting unit for providing lighting inside the cleaning and decontamination device 20. The lighting unit is, for example, an LED light emitting diode. The lighting unit can be dually controlled by infrared sensing and a personnel entry button outside the cleaning and decontamination device.

[0086] Additionally, reflective strips and warning lights may be arranged on the outside of the cleaning and purification device 20 to indicate the position and outline of the cleaning and purification device 20 at night.

[0087] Those skilled in the art can understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A decontamination and purification system for reducing the radioactive materials carried by emergency personnel, characterized in that: It includes an auxiliary adhesion part, a decontamination and purification device, and a habitable area attachment part, wherein: The auxiliary adhesion part is used to adhere to the radioactive solid material carried by the emergency personnel's shoe soles; The decontamination and purification device is used to form a closed purification space, perform a purge operation on the personnel entering and purify the air inside the decontamination and purification device; The habitable area attachment portion is used to connect the cleaning and decontamination device and the main control room, and serves as a buffer area between the cleaning and decontamination device and the main control room; The decontamination and purification device comprises a decontamination chamber body, a personnel entry-exit control unit, a gas purification unit, and a lighting unit. The decontamination chamber body is an air rib structure, comprising an outer protective structure, an intermediate air rib support structure, and an internal airtight material layer. The intermediate air rib support structure is designed to form a three-dimensional decontamination and purification space when the pressure in the air rib reaches a set value. The decontamination and purification space is designed to be any one of a cube, a rectangular parallelepiped, and an arched three-dimensional structure. The gas purification unit comprises a gas purifier and a gas purification pipeline. The gas purifier is equipped with an iodine filter and a high-efficiency filter for filtering out radioactive iodine and radioactive aerosols.

2. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 1, characterized in that: The outer protective structure is made of flame-retardant, fire-proof and puncture-proof materials, the intermediate air rib support structure is formed of TPU composite fiber cloth and includes an inflation port and a pressure relief valve, and the inner airtight material layer is TPU composite fiber cloth coated with polyurethane that can block air.

3. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 1, characterized in that: The decontamination and purification device also includes an air column inflation unit for inflating the intermediate air rib support structure, and the air column inflation unit is a high-pressure gas cylinder filled with nitrogen and / or liquid carbon dioxide gas.

4. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 3, characterized in that: The decontamination and purification device also includes an air rib pressure maintaining unit, including a gas pressure switch, a high-pressure gas source and an air pump. The gas pressure switch is installed on the intermediate air rib support structure and is configured as follows: when the pressure of the intermediate air rib support structure is lower than the set requirement, the gas pressure switch is activated to power on the air pump to inflate the intermediate air rib support structure; when the pressure of the intermediate air rib support structure is higher than the set requirement, the gas pressure switch is activated to power off the air pump and end inflation.

5. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 4, characterized in that: A gas release device, a gas distributor, and a normally closed one-way pressure valve are sequentially connected between the air column inflation unit and / or the air rib pressure maintaining unit and the inflation joint of the intermediate air rib supporting structure through a gas pipeline, wherein the gas release device is a gas release valve.

6. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 1, characterized in that: An entrance and an exit are formed on opposite sides of the main body of the disinfection room. The entrance is used for personnel to enter, and a zipper-type airtight door and a magnetic sealing door are installed in sequence from the outside to the inside. The exit is used for personnel to leave after disinfection and purification, and a magnetic sealing door and a zipper-type airtight door are installed in sequence from the inside to the outside.

7. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 6, characterized in that: An air curtain forming unit is also arranged on the inner side of the magnetic sealing door of the entrance. The air curtain forming unit is configured to spray air flow from top to bottom to form an air curtain when it is detected that the entrance is opened, so as to block the outside gas from diffusing into the main body of the decontamination room, wherein the air curtain forming unit is supplied with air by the gas purification unit.

8. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 1, characterized in that: The personnel entry-exit control unit includes an entry prompt button, a personnel entry indicator light, a personnel exit indicator light, a voice broadcast module, a control module, an infrared detection sensor, a device standby indicator light, and an exit prompt button, wherein: The entry prompt button is arranged at one side of the entrance of the main body of the decontamination room. When the emergency personnel need to enter the decontamination and purification device, they press the entry prompt button; The departure prompt button is arranged in the main control room. When the emergency personnel need to leave the main control room and enter the decontamination and purification device, they press the departure prompt button. The personnel entry indicator light is arranged at the entrance side of the main body of the decontamination room. When the emergency personnel press the entry prompt button, the control module controls the personnel entry indicator light to turn green and controls it to go out after the personnel leave. The personnel leaving indicator light is arranged at the exit side of the main body of the decontamination room. When the emergency personnel press the entry prompt button, the control module controls the personnel leaving indicator light to turn red and controls it to go out after the personnel leave. The control module is configured to control a personnel entry indicator light, a personnel exit indicator light, a voice broadcast module, a device standby indicator light, and a gas purification unit; The voice broadcast module is configured to make voice broadcasts according to the instructions of the control module to prompt personnel; The infrared detection sensor is configured to detect the presence of a person and transmit a signal of the presence of a person to the control module, and the control module controls the start and stop of the gas purification unit according to the signal of the presence of a person; The device standby indicator light is used to indicate that the cleaning and purification device is in a standby state.

9. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 8, characterized in that: When the emergency personnel press the exit prompt button, the control module controls the personnel entry indicator light to turn red and controls the personnel exit indicator light to turn green to prevent personnel from entering the entrance side.

10. The decontamination and purification system for reducing radioactive materials carried by emergency personnel according to claim 9, characterized in that: The data processing system of the gas purification unit operates in a countdown manner according to the volume of the internal space of the cleaning and purification device and the number of gas purification times in the area.

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