阅读说明：本技术 一种装配式辐射防护装置及其应用 (Assembled radiation protection device and application thereof ) 是由 王静 郑力 李坚 赵莉 于 2020-06-30 设计创作，主要内容包括：一种装配式辐射防护装置及其应用,涉及辐射防护技术领域,底座上设置有支撑机构,所述支撑机构上安装有屏蔽防护机构,所述支撑机构一端设置有能够开合的密闭防护门,所述底座上安装有滤毒通风机构和控制箱,所述滤毒通风机构的进气口位于屏蔽防护机构上,所述控制箱的输入端与外部电源的输出端连接；本发明采用装配式结构,能够实现快速拼装与拆卸,成本低廉、便捷度高、可重复多次或多场地运用,场地占用时间短,本发明的辐射防护装置采用模块化设计,可依据实际应用需求,实现不同形状、不同尺寸的个性化拼装,与固定式防护装置相比具有需求适配性强、空间利用率高的特点,能做到因地制宜、按需设防。(An assembled radiation protection device and application thereof relate to the technical field of radiation protection, wherein a support mechanism is arranged on a base, a shielding protection mechanism is arranged on the support mechanism, an openable and closable airtight protection door is arranged at one end of the support mechanism, a toxin filtering ventilation mechanism and a control box are arranged on the base, an air inlet of the toxin filtering ventilation mechanism is positioned on the shielding protection mechanism, and an input end of the control box is connected with an output end of an external power supply; the radiation protection device adopts a modular design, can realize individualized assembly of different shapes and sizes according to actual application requirements, has the characteristics of strong demand adaptability and high space utilization rate compared with a fixed protection device, and can realize defense according to local conditions and requirements.)

1. An assembled radiation protection device, includes base (1), characterized by: be provided with supporting mechanism (5) on base (1), install shielding protection mechanism (2) on supporting mechanism (5), supporting mechanism (5) one end is provided with airtight guard gate (4) that can open and shut, install on base (1) and strain poison ventilation mechanism (6) and control box (7), the air inlet of straining poison ventilation mechanism (6) is located shielding protection mechanism (2), the input of control box (7) is connected with external power source's output, the output of control box (7) is connected with the input electricity of straining poison ventilation mechanism (6).

2. The fabricated radiation protection device of claim 1, wherein: the base (1) is formed by splicing hot rolled steel plates, an internal floor (3) is paved on the base (1), and the internal floor (3) is formed by square steel.

3. The fabricated radiation protection device of claim 1, wherein: the shielding protection mechanism (2) comprises an inner supporting wall (203), a first radiation shielding wall (202) and an outer supporting wall (201), the inner supporting wall (203) is located on the supporting mechanism (5) and connected, the inner supporting wall (203) and the outer supporting wall (201) are located on the base (1) and connected through bolts, and the first radiation shielding wall (202) is located between the inner supporting wall (203) and the outer supporting wall (201).

4. A fabricated radiation protection device according to claim 3, wherein: interior support wall (203) are supported the board concatenation by a plurality of and are constituteed, first radiation shield wall (202) are formed by the first radiation shield board concatenation of a plurality of, outer support wall (201) are formed by the outer support plate concatenation of a plurality of, all be equipped with the sealed glue of protecting against radiation in the concatenation seam of interior support wall (203), first radiation shield wall (202) and outer support wall (201).

5. The fabricated radiation protection device of claim 1, wherein: all the adhesion of four sides of airtight guard gate (4) has soft radiation protection adhesive tape, airtight guard gate (4) include door frame (401), door frame (401) are connected with supporting mechanism (5) through the loose axle, the four sides of door frame (401) internal surface have two L type locating plates (404) through little countersunk screw connection respectively, install second radiation shielding wall (402) in door frame (401), second radiation shielding wall (402) are located between two L type locating plates (404), two light aluminum alloy plate (403) of door frame (401) internal fixedly connected with, L type locating plate (404) are located between two light aluminum alloy plate (403).

6. The fabricated radiation protection device of claim 5, wherein: the second radiation shielding wall (402) is formed by splicing a plurality of second radiation shielding plates, and radiation-proof sealant is arranged in a splicing seam of the second radiation shielding wall (402).

7. The fabricated radiation protection device of claim 1, wherein: supporting mechanism (5) are including being braced frame that the equidistance distributes on base (1), and braced frame includes stand (501) and crossbeam (502), the quantity of stand (501) is two, and two stands (501) are located the both sides and the fixed connection of base (1) respectively, fixedly connected with crossbeam (502) between two stands (501).

8. The fabricated radiation protection device of claim 1, wherein: the poison filtering and ventilating mechanism (6) comprises an air inlet machine (601), a gas-water separator (603), a filter (605), a differential pressure transmitter (606) and an exhaust fan (607), wherein the air inlet machine (601) and the exhaust fan (607) are positioned on a shielding protection mechanism (2) and are fixedly connected, the air inlet machine (601) and the exhaust fan (607) are connected through a U-shaped air pipe, an air inlet of the air inlet machine (601) and an air outlet of the exhaust fan (607) are positioned outside the shielding protection mechanism (2), an air inlet and an air outlet of the U-shaped air pipe are connected with an air inlet and an air outlet of a first air pipe (602), an electric three-way valve is arranged at the connecting end of the U-shaped air pipe and the first air pipe (602), the gas-water separator (603) and the filter (605) are both positioned on a base (1) and are fixedly connected, the air inlet and the air outlet of the first air pipe (602) are connected with the air inlet and the air outlet, the gas inlet and outlet of the gas-water separator (603) are connected with the gas inlet and outlet of the filter (605) through a second gas conveying pipe (604), the gas-water separator (603) is located on the supporting mechanism (5) and is fixedly connected with the gas inlet and outlet, and the output end of the gas-water separator (603) is electrically connected with the input end of the control box (7).

9. The application of the assembled radiation protection device is characterized in that: use of the assembled radiation protection device of any one of claims 1-8 for radiation protection and radioactive waste storage containment in nuclear emergency treatment.

10. Use of a fabricated radiation protection device according to claim 9, characterized in that: the application of radiation protection is as follows:

when the exterior of the assembled radiation protection device is in a polluted state in nuclear emergency treatment, namely, when pollutants such as radioactive aerosol and radioactive dust exist in the space outside the assembled radiation protection device, the toxicity filtering and ventilating mechanism (6) starts a positive pressure air exhaust working condition to operate, the air pressure inside the assembled radiation protection device is slightly higher than the outdoor air pressure at the moment, and the toxicity filtering and ventilating mechanism (6) is matched for filtering, so that the space inside the assembled radiation protection device is ensured to be in a clean state, and at the moment, the assembled radiation protection device can ensure that rescuers or operating personnel in the assembled radiation protection device are in a safety protection state, so that the personnel are prevented from being irradiated by radioactive rays and polluted by the radioactive dust and the aerosol on an accident site;

the storage and isolation of radioactive wastes are applied as follows:

at the later stage of nuclear emergency treatment, the outside pollutant is cleared up and is finished, when the radioactive waste generated on site needs to be stored for a short time, the toxin filtering and ventilating mechanism (6) is started to operate under the negative pressure air exhaust working condition, the air pressure in the assembled radiation protection device is slightly lower than the outdoor air pressure at the moment, the toxin filtering and ventilating mechanism (6) is matched for filtering, the radioactive pollutant stored in the assembled radiation protection device is ensured not to be diffused to the outside of the device to generate secondary pollution, and the radiation protection device can be used for safely and reliably storing a certain amount of radioactive waste at the moment.

Technical Field

The invention relates to the technical field of radiation protection, in particular to an assembled radiation protection device and application thereof.

Background

In the process of nuclear energy development and utilization, the probability of leakage accidents of nuclear facilities such as nuclear power plants, experimental reactors and the like is objective and unavoidable, such as the nuclear leakage accidents of Cherenobeli, Sanriella, Fudao and the like, and nuclear radiation generated in sudden nuclear leakage can seriously threaten the personal safety of workers who are difficult to evacuate quickly and nuclear emergency rescue personnel, namely radioactive pollutants generated in the disposal process, such as improper storage management, can also easily become potential pollution sources to cause secondary radiation pollution, so that a radiation protection device capable of being built temporarily is urgently needed in the emergency rescue process, and a temporary 'safety room' can be provided for rescue personnel on the one hand; on the other hand, the patent with the second right of gas granting publication No. CN20802192 provides a field medical X-ray protection device, which can realize the protection in the irradiation range of the standing and lying X-rays, is suitable for the occasions of field tent hospitals, field emergency rescue stations and the like, but has smaller internal space, is not suitable for multiple persons to use simultaneously, has poorer sealing performance and can not effectively protect radioactive aerosols and dust, the medical radiation inspection equipment protection device with publication No. CN107633891A adopts folding protection plates or shielding strips to assemble and construct the radiation protection device of the medical radiation inspection equipment, and utilizes the expansion between the grooves of the adjacent protection plates to tightly support the adjacent folding protection plates to realize the fixation between the sliding plates without bolts and nuts, thereby improving the assembly efficiency, but the protection device is not firm, the root is easy to be destroyed during external force, and the protection device also has no sealing performance, only meets the medical ray shielding protection under the general condition, and can not effectively protect radioactive aerosol and dust, namely the existing detachable mobile radiation protection device can not better meet the ray shielding protection under the nuclear emergency treatment condition, and various complex radiation protection requirements such as the protection of radioactive pollutants such as aerosol, dust and the like.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses an assembled radiation protection device which adopts an assembled structure, can realize quick assembly and disassembly, has low cost and high convenience, can be repeatedly applied for multiple times or multiple places, and has short site occupation time.

In order to realize the purpose, the invention adopts the following technical scheme:

the utility model provides an assembled radiation protection device, includes the base, be provided with supporting mechanism on the base, the last shielding protection mechanism that installs of supporting mechanism, supporting mechanism one end is provided with the airtight guard gate that can open and shut, install on the base and strain poison ventilation mechanism and control box, the air inlet that strains poison ventilation mechanism is located shielding protection mechanism, the input and the output of external power source of control box are connected, the output of control box is connected with the input electricity that strains poison ventilation mechanism.

The base is formed by splicing hot rolled steel plates, an internal floor is paved on the base, and the internal floor is formed by square steel.

The shielding protection mechanism comprises an inner supporting wall, a first radiation shielding wall and an outer supporting wall, the inner supporting wall is located on the supporting mechanism and connected, the inner supporting wall and the outer supporting wall are located on the base and connected through bolts, and the first radiation shielding wall is located between the inner supporting wall and the outer supporting wall.

The interior support wall comprises the concatenation of a plurality of interior support plate, first radiation shield wall comprises the concatenation of a plurality of first radiation shield plate, outer support wall comprises the concatenation of a plurality of outer support plate, all be equipped with the sealed glue of protecting against radiation in the concatenation seam of interior support wall, first radiation shield wall and outer support wall.

The four sides of airtight protection door all adhere and have soft radiation protection adhesive tape, airtight protection door includes the door frame, the door frame passes through the loose axle and is connected with supporting mechanism, the four sides of door frame internal surface are connected with two L type locating plates through little countersunk screw respectively, install the second in the door frame and radiate the shielding wall, the second radiates the shielding wall and is located between two L type locating plates, two light aluminum alloy plates of fixedly connected with in the door frame, L type locating plate is located between two light aluminum alloy plates.

The second radiation shielding wall is formed by splicing a plurality of second radiation shielding plates, and radiation-proof sealant is arranged in a splicing seam of the second radiation shielding wall.

The supporting mechanism comprises a supporting frame which is distributed on the base in an equal distance, the supporting frame comprises two stand columns and cross beams, the two stand columns are respectively located on two sides of the base and fixedly connected, and the cross beams are fixedly connected between the two stand columns.

The poison filtering and ventilating mechanism comprises an air inlet machine, an air-water separator, a filter, a differential pressure transmitter and an exhaust fan, wherein the air inlet machine and the exhaust fan are positioned on a shielding and protecting mechanism and are fixedly connected, the air inlet machine and the exhaust fan are connected through a U-shaped air pipe, the air inlet of the air inlet machine and the air outlet of the exhaust fan are positioned outside the shielding and protecting mechanism, the air inlet and the air outlet of the U-shaped air pipe are connected with the air inlet and the air outlet of a first air pipe, an electric three-way valve is arranged on the connecting end of the U-shaped air pipe and the first air pipe, the air-water separator and the filter are both positioned on a base and are fixedly connected, the air inlet and the air outlet of the first air pipe are connected with the air inlet and the air outlet of the air-water separator, the air inlet and the air outlet of the air-water separator are connected with, the output end of the gas-water separator is electrically connected with the input end of the control box.

Use of a fabricated radiation protection device for radiation protection in nuclear emergency and storage containment of radioactive waste.

The application of radiation protection is as follows:

when nuclear emergency treatment is carried out, the outside of the assembled radiation protection device is in a polluted state, namely, when pollutants such as radioactive aerosol and radioactive dust exist in the space outside the assembled radiation protection device, the toxicity filtering and ventilating mechanism starts a positive pressure air exhaust working condition to operate, the air pressure inside the assembled radiation protection device is slightly higher than the outdoor air pressure at the moment, and then the toxicity filtering and ventilating mechanism is matched for filtering, so that the space inside the assembled radiation protection device is ensured to be in a clean state, and at the moment, the assembled radiation protection device can ensure that rescuers or operators in the assembled radiation protection device are in a safety protection state, so that the personnel are prevented from being irradiated by radioactive rays and polluted by the radioactive dust and the aerosol on an accident site;

the storage and isolation of radioactive wastes are applied as follows:

in the later period of nuclear emergency treatment, when external pollutants are cleaned up and medium and low-level waste generated on site needs to be stored for a short time, the toxicity filtering and ventilating mechanism starts negative pressure air exhaust working condition to operate, the internal air pressure of the assembled radiation protection device is slightly lower than the outdoor air pressure at the moment, and the toxicity filtering and ventilating mechanism is matched for filtering, so that the radioactive pollutants stored in the assembled radiation protection device can not be diffused to the outside of the device to generate secondary pollution, and the radiation protection device can be used for safely and reliably storing a certain amount of radioactive waste at the moment.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention relates to an assembled radiation protection device and application thereof, wherein the assembled radiation protection device comprises:

1. the invention adopts an assembly type structure, can realize quick assembly and disassembly, has low cost and high convenience, can be repeatedly applied for many times or in multiple fields, and has short field occupation time;

2. the radiation protection device adopts a modular design, can realize individualized splicing of different shapes and sizes according to actual application requirements, has the characteristics of strong demand adaptability and high space utilization rate compared with a fixed protection device, and can set up defences according to local conditions and requirements;

3. the assembled radiation protection device has good sealing performance, and can achieve double protection effects of ray shielding and airborne radioactive pollutants by matching with the toxicity filtering and ventilating mechanism;

4. the invention can be used for radiation protection and storage and isolation of radioactive wastes, one device has multiple protection functions, and reinforces the short plate with single function of the existing protection device;

5. the light-weight design of the assembled radiation protection device provided by the invention is realized by adopting a large amount of light alloy or polyolefin-based radiation shielding composite materials, and compared with the traditional protection device made of a lead plate or a lead screen, the light-weight assembled radiation protection device has the advantages of portability, more convenience and high efficiency in assembly and disassembly, no need of auxiliary hoisting of hoisting machinery, complete manual assembly, and greatly enhanced applicability and convenience in emergency action.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural diagram of a shielding and protecting mechanism, a supporting mechanism and a poison filtering and ventilating mechanism according to the present invention;

FIG. 3 is a schematic view of the structure of the airtight protection door of the present invention;

1. a base; 2. a shielding protection mechanism; 201. an outer support wall; 202. a first radiation shielding wall; 203. an inner support wall; 3. an interior floor; 4. sealing the protective door; 401. a door frame; 402. a second radiation shielding wall; 403. a light aluminum alloy plate; 404. an L-shaped positioning plate; 5. a support mechanism; 501. a column; 502. a cross beam; 6. a poison filtering and ventilating mechanism; 601. an air inlet machine; 602. a first gas delivery pipe; 603. a gas-water separator; 604. a second gas delivery pipe; 605. a filter; 606. a differential pressure transmitter; 607. an exhaust fan; 7. and a control box.

Detailed Description

The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.

Combine attached figure 1~3 an assembled radiation protection device, including base 1, be provided with supporting mechanism 5 on the base 1, install shielding protection mechanism 2 on the supporting mechanism 5, 5 one end of supporting mechanism is provided with airtight guard gate 4 that can open and shut, constitutes airtight space through base 1, shielding protection mechanism 2 and airtight guard gate 4, install toxicity filtering ventilation mechanism 6 and control box 7 on the base 1, toxicity filtering ventilation mechanism 6's air inlet is located shielding protection mechanism 2, takes a breath and strains the toxicity through toxicity filtering ventilation mechanism 6, the input of control box 7 is connected with external power source's output, the output of control box 7 is connected with toxicity filtering ventilation mechanism 6's input electricity.

The base 1 is formed by splicing hot rolled steel plates, an internal floor 3 is paved on the base 1, and the internal floor 3 is made of square steel.

The shielding protection mechanism 2 comprises an inner supporting wall 203, a first radiation shielding wall 202 and an outer supporting wall 201, wherein the inner supporting wall 203 is located on the supporting mechanism 5 and connected, the inner supporting wall 203 and the outer supporting wall 201 are both located on the base 1 and connected through bolts, the first radiation shielding wall 202 is located between the inner supporting wall 203 and the outer supporting wall 201, and the first radiation shielding wall 202 is made of polyolefin-based radiation shielding composite materials.

Interior support wall 203 comprises the concatenation of a plurality of inner support plate, first radiation shield wall 202 comprises the concatenation of a plurality of first radiation shield plate, outer support wall 201 comprises the concatenation of a plurality of outer support plate, all be equipped with the sealed glue of protecting against radiation in the concatenation seam of interior support wall 203, first radiation shield wall 202 and outer support wall 201.

In order to facilitate carrying and assembly of workers, the inner supporting plate, the first radiation shielding plate and the outer supporting plate are small plates, the inner supporting plate, the first radiation shielding plate and the outer supporting plate are of a protruding structure at one end and a groove structure at the other end, and the inner supporting plate, the first radiation shielding plate and the outer supporting plate can be connected in a tenon-and-mortise mode.

All the adhesion of four sides of airtight protection door 4 has soft radiation protection adhesive tape, airtight protection door 4 includes door frame 401, door frame 401 passes through the loose axle and is connected with supporting mechanism 5, the four sides of door frame 401 internal surface have two L type locating plates 404 through little countersunk screw connection respectively, install second radiation shield wall 402 in the door frame 401, second radiation shield wall 402 is located between two L type locating plates 404, two light aluminum alloy plate 403 of fixedly connected with in the door frame 401, L type locating plate 404 is located between two light aluminum alloy plate 403.

The second radiation shielding wall 402 is formed by splicing a plurality of second radiation shielding plates, radiation-proof sealant is arranged in a splicing seam of the second radiation shielding wall 402, and the second radiation shielding wall 402 is made of polyolefin-based radiation shielding composite material.

The supporting mechanism 5 comprises supporting frames which are distributed on the base at equal intervals, the supporting frames comprise upright columns 501 and cross beams 502, the number of the upright columns 501 is two, the two upright columns 501 are respectively positioned at two sides of the base 1 and fixedly connected, a cross beam 502 is fixedly connected between the two upright columns 501, according to the present description, it is preferable to use, for example, a stud 501 flanged to the base plate 1, an upright column 501 is fixedly connected in the flange, a clamping groove and a threaded connecting groove are arranged at the top end of the upright column 501, the positions of the threaded connecting grooves correspond to and are communicated with the positions of the clamping grooves, the two upright columns 501 are clamped with the cross beam 502 through the clamping grooves, the two ends of the beam 502 are respectively provided with a connecting groove, the positions of the connecting grooves correspond to and are communicated with the positions of the threaded connecting grooves, the connecting grooves and the threaded connecting grooves are connected with fastening bolts through internal threads, and the upright column 501 and the cross beam 502 are both made of light high-strength alloy.

The poison filtering and ventilating mechanism 6 comprises an air inlet machine 601, a gas-water separator 603, a filter 605, a differential pressure transmitter 606 and an exhaust fan 607, wherein the air inlet machine 601 and the exhaust fan 607 are positioned on a shielding and protecting mechanism 2 and are fixedly connected, the air inlet machine 601 and the exhaust fan 607 are connected through a U-shaped gas pipe, an air inlet of the air inlet machine 601 and an air outlet of the exhaust fan 607 are positioned outside the shielding and protecting mechanism 2, an air inlet and an air outlet of the U-shaped gas pipe are connected with an air inlet and an air outlet of a first gas pipe 602, an electric three-way valve is arranged at the connecting end of the U-shaped gas pipe and the first gas pipe 602, the gas-water separator 603 and the filter 605 are both positioned on a base 1 and are fixedly connected, the air inlet and the air outlet of the first gas pipe 602 are connected with the air inlet and the air outlet of the gas-water separator 603, and the air inlet and the air, the gas-water separator 603 is located on the supporting mechanism 5 and fixedly connected, and the output end of the gas-water separator 603 is electrically connected with the input end of the control box 7.

When the poison filtering and ventilating mechanism 6 works under positive pressure, the air inlet machine 601 is used for air transmission, and when the poison filtering and ventilating mechanism 6 works under negative pressure, the exhaust fan 607 is used for air exhaust, so that a positive pressure state or a negative pressure state is formed in the assembled radiation protection device.

The filter 605 is composed of a primary filter and a high-efficiency filter, the primary filter removes large-particle pollutants in the air, and the high-efficiency filter achieves 99.99% of filtering effect on pollutants with a size of more than 0.3 μm.

The control box 7 comprises a single chip microcomputer and a power switch group, the single chip microcomputer is 89C51 in model, the single chip microcomputer is widely used, the connection mode of pins is known to technicians in the field by referring to a technical manual according to actual needs, and the power switch group is provided with a switch button corresponding to the poison filtering and ventilating mechanism 6.

Use of a fabricated radiation protection device for radiation protection in nuclear emergency and storage containment of radioactive waste.

The application of radiation protection is as follows:

when the exterior of the assembled radiation protection device is in a polluted state in nuclear emergency treatment, namely, when pollutants such as radioactive aerosol and radioactive dust exist in the space outside the assembled radiation protection device, the toxicity filtering and ventilating mechanism 6 starts a positive pressure air exhaust working condition to operate, the air pressure inside the assembled radiation protection device is slightly higher than the outdoor air pressure at the moment, and the toxicity filtering and ventilating mechanism 6 is matched for filtering, so that the space inside the assembled radiation protection device is ensured to be in a clean state, and at the moment, the assembled radiation protection device can ensure that rescuers or operators in the assembled radiation protection device are in a safety protection state, so that the personnel are prevented from being irradiated by radioactive rays and polluted by the radioactive dust and the aerosol on an accident site;

the storage and isolation of radioactive wastes are applied as follows:

at the later stage of nuclear emergency treatment, the cleaning of external pollutants is finished, when the radioactive waste generated on site needs to be stored for a short time, the toxicity filtering and ventilating mechanism 6 is started to operate under the negative pressure air exhaust working condition, the internal air pressure of the assembled radiation protection device is slightly lower than the outdoor air pressure at the moment, and the toxicity filtering and ventilating mechanism 6 is matched for filtering, so that the radioactive pollutants stored in the assembled radiation protection device can not be diffused to the outside of the device to cause secondary pollution, and the radiation protection device can be used for safely and reliably storing a certain amount of radioactive waste at the moment

When the assembly type radiation protection device and the application thereof are used, a worker splices the base 1 and fixes the base 1 on the ground with flat terrain, the worker fixes the flange on the base 1, inserts the upright 501 into the flange for fixing, positions the position of the upright 501 through the flange, puts the beam 502 into the clamping groove on the upright 501, connects the beam through the fastening bolt to form support, pastes the shielding protection mechanism 2 on the support mechanism 5 for protection, the shielding protection mechanism 2 consists of an inner support wall 203, a first radiation shielding wall 202 and an outer support wall 201, limits and fixes the position of the first radiation shielding wall 202 through the inner support wall 203 and the outer support wall 201, avoids the position of the first radiation shielding wall 202 from moving and affecting the protection effect, and closes the shielding protection mechanism 2 through the closed protection door 4, the method comprises the steps of realizing the sealing between door frames reserved in a protective device through a soft radiation-proof adhesive tape on a sealing protective door 4, detecting the pressure difference in a shielding protective mechanism 2 through a differential pressure transmitter 606, transmitting pressure information into a control box 7, controlling an air inlet machine 601 and an exhaust machine 607 to work through the control box 7, ventilating through the air inlet machine 601 and the exhaust machine 607, dehumidifying air conveyed by a fan 601 through an air-water separator 603, conveying the dehumidified air into a primary filter, removing large-particle pollutants in the air through the primary filter, conveying the primarily filtered air into a high-efficiency filter, wherein the high-efficiency filter achieves the 99.99% filtering effect on pollutants more than 0.3 mu m in the air, and when the radiation protection is applied, the outside of the assembled radiation protective device is in a pollution state in the rescue operation, namely, when the external space of the assembled radiation protection device has pollutants such as radioactive aerosol and radioactive dust, the toxicity filtering and ventilating mechanism 6 starts the positive pressure air exhaust working condition to operate, the internal air pressure of the assembled radiation protection device is slightly higher than the outdoor air pressure, and then the toxicity filtering and ventilating mechanism 6 is matched for filtering to ensure that the internal space of the assembled radiation protection device is in a clean state, at the moment, the assembled radiation protection device can ensure that rescuers or operators in the assembled radiation protection device are in a safe protection state to avoid the personnel from being irradiated by radioactive rays in an accident site and being polluted by the radioactive dust and the aerosol, when the radiation source substance is stored and isolated, at the later stage of a rescue action, the external pollutants are completely cleaned, when the low-level waste generated in the site needs to be stored for a short time, the air pressure in the assembled radiation protection device is slightly lower than the outdoor air pressure, and the radioactive pollutants stored in the assembled radiation protection device are prevented from being diffused to the outside of the device to generate secondary pollution by matching with the toxicity filtering and ventilating mechanism 6 for filtering, and the radiation protection device can be used for safely and reliably storing a certain amount of radioactive wastes.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.