Personnel protection suit capable of simultaneously preventing nuclear radiation injury and sodium chemical injury

Abstract

The utility model relates to the field of protective suit devices, in particular to a personnel protective suit capable of simultaneously preventing nuclear radiation injury and sodium chemical injury, which comprises a ray protective internal part, a protective external part and a protective external part, and the ray protective internal part comprises a detachable ray protective cap, a detachable high-collar ray protective jacket and detachable ray protective leggings; the detachable ray protection hat, the detachable high-collar ray protection coat and the detachable ray protection leggings are all made of lead rubber or a polyethylene, polyvinyl chloride and tantalum composite material with nuclear radiation shielding capability; the fireproof radiation protection external protection sleeve is arranged outside the radiation protection internal part; and the fireproof outer protective suit comprises an aluminized coating flame-retardant composite fabric layer, a multi-layer composite fabric layer and a barrier film layer. The personnel protection suit with the nuclear radiation damage prevention function and the sodium chemical damage prevention function is used for personnel protection in the radioactive sodium-containing equipment maintenance process, the radioactive sodium fire accident emergency process and the accident post-treatment process.

Description

Technical Field

[0001] The utility model relates to the field of protective suit devices, in particular to a personnel protective suit that can simultaneously prevent nuclear radiation damage and sodium chemical damage. Background Art

[0002] Fast reactors are the second step in China's three-step strategy for nuclear energy, namely "thermal reactors - fast reactors - fusion reactors". At present, China has designed and built the sodium-cooled fast neutron reactor China Experimental Fast Reactor (CEFR) and China Demonstration Fast Reactor (CFR600). Due to its extremely active chemical properties, when high-temperature sodium leaks, it will react violently with oxygen and water in the air and burn, releasing a large amount of heat and sodium aerosol. In particular, the leakage of radioactive sodium in the primary circuit will also cause a significant increase in the radioactive dose level in the accident area. The heat released by the radioactive sodium fire may cause high-temperature damage to the staff in the accident area. The radioactive sodium aerosol released enters the human body through respiration, which will cause chemical and radioactive damage to the human body. The sodium splashed on the human body will burn the human tissue, causing skin burns and eye blindness and other damages.

[0003] At present, the one-piece fully enclosed nuclear radiation protective clothing available on the market can protect against X, α, β, γ rays and radioactive aerosol damage. The main body material is lead rubber or other radiation shielding materials, but its fireproof, flame-retardant and heat-insulating properties are poor, and it cannot meet the personnel protection requirements in the high-temperature environment of sodium leakage sputtering fire. The fire-fighting suits, heat-insulating suits and fireproof and chemical-resistant suits commonly used in non-radioactive sodium-related work scenarios can be fireproof, flame-retardant and heat-insulating to a certain extent, but they do not have the ability to protect against nuclear radiation.

[0004] Therefore, it is necessary to design a personnel protective suit that simultaneously has the functions of preventing nuclear radiation damage and sodium chemical damage for the protection of personnel during the maintenance of radioactive sodium-containing equipment, the emergency response to radioactive sodium fire accidents and the post-accident treatment process. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the defects existing in the prior art. The utility model provides a personnel protective suit that can simultaneously prevent nuclear radiation damage and sodium chemical damage, and can be used for the protection of personnel during the maintenance of radioactive sodium-containing equipment, the emergency response to radioactive sodium fire accidents and the post-accident treatment process, which has the functions of preventing nuclear radiation damage and sodium chemical damage at the same time.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is: a personnel protective suit that can simultaneously prevent nuclear radiation damage and sodium chemical damage, comprising:

[0007] An inner radiation protection component, which includes a detachable radiation protection cap, a detachable high-neck radiation protection upper garment and detachable radiation protection leggings;

[0008] The detachable radiation protection cap, detachable high-neck radiation protection upper garment, and detachable radiation protection leggings are all made of lead rubber or polyethylene, polyvinyl chloride, or tantalum composite materials with nuclear radiation shielding capabilities;

[0009] A fire and chemical protection outer protection suit, which is installed outside the radiation protection inner part and completely seals the person wearing the radiation protection inner part;

[0010] The fire and chemical protection outer protection suit includes an aluminized coating flame retardant composite fabric layer, a multi-layer composite fabric layer, and a barrier film layer that are fixedly connected in sequence from the outside to the inside;

[0011] The detachable radiation protection cap, detachable high-neck radiation protection upper garment, and detachable radiation protection leggings are all fixedly connected to the fire and chemical protection outer protection suit.

[0012] Further, the detachable radiation protection cap is fixedly connected to the fire and chemical protection outer protection suit through Velcro;

[0013] The detachable high-neck radiation protection upper garment is fixedly connected to the fire and chemical protection outer protection suit through a zipper mechanism;

[0014] The detachable radiation protection leggings are fixed to the fire and chemical protection outer protection suit through a waist button mechanism;

[0015] The fire and chemical protection outer protection suit is provided with a front airtight PVC zipper entrance for convenient wearing by personnel and for manually and stably placing the fire and chemical protection outer protection suit on the detachable radiation protection cap, detachable high-neck radiation protection upper garment, and detachable radiation protection leggings, thereby facilitating personnel construction operations.

[0016] Further, the fire and chemical protection outer protection suit is provided with pockets.

[0017] Further, the fire and chemical protection outer protection suit is provided with a back bulge for installing a breathing apparatus, and an exhalation and exhaust valve is provided at the back bulge for discharging exhaled gas.

[0018] Further, an inner safety helmet is provided inside the head of the fire and chemical protection outer protection suit. The inner wall of the inner safety helmet is provided with Velcro for pasting with the detachable radiation protection cap. A safety helmet face shield is installed on the inner safety helmet, and the safety helmet face shield includes a heat-insulating gold-plated face shield and a radiation-proof organic lead glass layer from the outside to the inside.

[0019] Further, zippers are provided on the inner sides of both sides of the front airtight PVC zipper entrance of the fire and chemical protection outer protection suit for installation connection and disassembly with the detachable high-neck radiation protection upper garment;

[0020] A button or a zipper is provided inside the waist of the fire and chemical protection outer protective suit for connecting with the detachable radiation protection leggings.

[0021] Further, hand protection is provided at the hand part of the fire and chemical protection outer protective suit. The hand protection includes a five-finger glove, and the five-finger glove includes a butyl rubber layer, a lead rubber layer and a knitted aramid lining layer from outside to inside.

[0022] Further, foot protection is provided at the foot part of the fire and chemical protection outer protective suit. The foot protection includes multiple layers of protective sock covers and a boot flap covering the outside of the multiple layers of protective sock covers. The multiple layers of protective sock covers include a butyl rubber layer, a lead rubber layer and a knitted aramid lining layer from outside to inside, and the boot flap covers the outside of the butyl rubber layer.

[0023] Further, the zipper mechanism includes a first connecting cloth and a second connecting cloth. The second connecting cloth is fixedly connected to both sides of the front of the detachable high-neck radiation protection upper garment. Two second connecting cloths are fixedly connected to the inner side of the fire and chemical protection outer protective suit. The two second connecting cloths are respectively located on both sides of the front airtight PVC zipper entrance. A first chain body is installed on the second connecting cloth, and a second chain body is installed on the first connecting cloth. The first chain body and the second chain body form a clothes zipper.

[0024] Further, the waist button mechanism includes a third connecting cloth. A plurality of third connecting cloths are fixedly connected to the inner side of the fire and chemical protection outer protective suit. Buttons are tied to the third connecting cloths. A plurality of fourth connecting cloths are fixedly connected to the outer wall of the detachable radiation protection leggings. Gap openings are formed in the fourth connecting cloths, and the plurality of buttons are respectively locked in the plurality of gap openings.

[0025] Compared with the prior art, the beneficial effects of the present utility model include:

[0026] It can be used for the protection of personnel during the maintenance of radioactive sodium-containing equipment, the emergency response to radioactive sodium fire accidents and the post-accident treatment, improves the technical capabilities of the protective equipment for the staff involved in radioactive sodium in sodium-cooled fast reactors and nuclear emergency response personnel, and is also applicable to the emergency scenarios of radioactive area fires that may occur in pressurized water reactor nuclear power plants, etc.

[0027] By providing the waist button mechanism and the zipper mechanism, the radiation protection inner part and the overall fire and chemical protection outer protective suit can be stably installed together, so that the overall fire and chemical protection outer protective suit can be normally and stably worn on the personnel, thus facilitating the operation. Description of the Drawings

[0028] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0029] Figure 1 Schematically shows a schematic diagram of the radiation protection inner part of the device proposed according to an embodiment of the present utility model;

[0030] Figure 2 Schematically shows a schematic diagram of the fire and chemical protection outer protection suit of the device proposed according to an embodiment of the present utility model;

[0031] Figure 3 Schematically shows a schematic diagram of the sectional structure of the material layer of the fire and chemical protection outer protection suit of the device proposed according to an embodiment of the present utility model;

[0032] Figure 4 Schematically shows a schematic diagram of the structure of the zipper mechanism of the device proposed according to an embodiment of the present utility model;

[0033] Figure 5 Schematically shows a schematic diagram of the structure of the waist button mechanism of the device proposed according to an embodiment of the present utility model.

[0034] Reference numerals in the figure: 1. Front airtight zipper entrance; 2. Back bulge; 3. Exhalation discharge valve; 4. Pocket; 5. Built-in safety helmet; 6. Safety helmet face shield; 7. Hand protection; 8. Foot protection; 9. Foot protection; 10. Removable radiation protection cap; 11. Removable radiation protection leggings; 12. Aluminized coating flame-retardant composite fabric layer; 13. Multi-layer composite fabric layer; 14. Barrier film layer; 15. First connecting cloth; 16. Second connecting cloth; 17. Second chain body; 18. First chain body; 19. Third connecting cloth; 20. Button; 21. Fourth connecting cloth; 22. Gap opening. Detailed implementation manners

[0035] It is easily understood that according to the technical solution of the present utility model, without changing the essential spirit of the present utility model, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as the whole of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0036] Embodiment:

[0037] As Figures 1-5 shown, the personal protection suit for preventing nuclear radiation damage and sodium chemical damage mainly includes a removable radiation protection inner part and a fire and chemical protection outer protection suit.

[0038] The detachable radiation protection inner parts mainly include a detachable radiation protection cap 9, a detachable high-neck radiation protection upper garment 10 and detachable radiation protection leggings 11. Their main body material is lead rubber or a polyethylene / polyvinyl chloride / tantalum composite material with nuclear radiation shielding ability, which can provide nuclear radiation protection for the human head, neck, torso and limbs against X, α, β, and γ rays, and the nuclear radiation protection ability can reach 0.25mmPb - 0.75mmPb.

[0039] The detachable radiation protection cap 9 is pasted to the inner wall of the built-in safety helmet 5 inside the fire and chemical protection outer protective suit through Velcro; the detachable high-neck radiation protection upper garment 10 is connected and fixed to the fire and chemical protection outer protective suit through a zipper; the detachable radiation protection leggings 11 are connected and fixed to the fire and chemical protection outer protective suit through a waist button or a zipper.

[0040] The fire and chemical protection outer protective suit has a main body fabric made of aluminized coating flame-retardant composite fabric, multi-layer composite fabric and barrier film. It maintains various physical and chemical properties at high temperatures without shrinkage, melting and brittle carbonization. It has certain tensile strength, tear strength, abrasion resistance and airtightness, and can block the intrusion of various chemical substances such as sodium, acids and alkalis, steam, and aerosol. The fire and chemical protection outer protective suit is provided with a front airtight PVC zipper entrance 1 for easy wearing, and a pocket 4 for placing and carrying instruments, alarms and communication equipment, etc.; it has a structure with a back bulge 2, and the back bulge 2 can be understood as a U-shaped cloth, which can be used for the space of the built-in breathing apparatus equipment, and an exhalation and exhaust valve 3 is provided for discharging the exhaled gas; at the head part of the fire and chemical protection outer protective suit, there is a built-in safety helmet 5, the built-in safety helmet 5 wraps the main body fabric of the fire and chemical protection and is connected to the neck fabric. The inner wall of the built-in safety helmet 5 is provided with Velcro for pasting with the detachable radiation protection cap 1. At the head part of the fire and chemical protection outer protective suit, there is a safety helmet face shield 6, and the safety helmet face shield 6 adopts a multi-layer structure of a heat-insulating gold-plated face screen and radiation-proof organic lead glass; the hand protection 7 of the fire and chemical protection outer protective suit adopts multi-layer protection, which are butyl rubber, lead rubber and knitted aramid lining respectively, and the connection with the protective suit is sealed; the foot protection 8 of the fire and chemical protection outer protective suit is an integrated chemical and radiation-proof multi-layer protection sock and boot flap. The multi-layer protection sock is also butyl rubber, lead rubber and knitted aramid lining respectively, and the boot flap can cover the protective boot tube to provide multiple protections for the feet. The fire and chemical protection outer protective suit can provide comprehensive fire and chemical protection for the human body, playing the functions of fire prevention, heat insulation, preventing liquid sodium sputtering and preventing radioactive sodium aerosol from contaminating the human body or being inhaled into the body, and can also provide nuclear radiation protection for the face, hands and feet.

[0041] When radioactive sodium-related workers carry out high-risk operations that may contact radioactive sodium, they can wear the personnel protection suit of this device to protect against nuclear radiation damage and sodium chemical damage.

[0042] The main material of the detachable radiation protection inner part is lead rubber or a polyethylene / polyvinyl chloride / tantalum composite material with nuclear radiation shielding ability. This material has good attenuation ability for X, α, β, and γ rays. The nuclear radiation protection ability can reach 0.25mmPb - 0.75mmPb through its thickness design. Using this material with such thickness, detachable radiation protection caps 9, detachable high-neck radiation protection upper garments 10, and detachable radiation protection leggings 11 are processed and manufactured to provide nuclear radiation protection for the head, torso, and limbs. And detachable structures such as Velcro, buttons, or zippers are designed to connect and fix with the fire and chemical protection outer protection suit, facilitating the use of the suit in multiple scenarios such as radioactive fire and chemical protection scenarios and non-radioactive fire and chemical protection scenarios.

[0043] For the fire and chemical protection outer protection suit, the main body fabric uses aluminized coating flame-retardant composite fabric, multi-layer composite fabric, and barrier film, maintaining various physical and chemical properties at high temperatures without shrinkage, melting, and brittle carbonization, and having certain tensile strength, tear strength, abrasion resistance, and airtightness. Using this fabric, the fire and chemical protection outer protection suit is processed and manufactured. The suit is designed with an airtight zipper PVC entrance 1 at the front for easy wearing; zippers are provided on the inner sides of both sides of the airtight zipper PVC entrance 1 for installation connection and disassembly with the high-neck radiation protection upper garment; a pocket 4 is designed on the chest of the fire and chemical protection outer protection suit for placing and carrying instruments, alarms, communication equipment, etc.; a convex part 2 is designed on the back of the fire and chemical protection outer protection suit, which can be used for the space of the built-in breathing apparatus equipment, and an exhalation and exhaust valve 3 is provided for discharging the exhaled gas; there is a built-in safety helmet 5 at the head part of the fire and chemical protection outer protection suit. The outside of the built-in safety helmet 5 is wrapped with the fire and chemical protection main body fabric and connected to the neck fabric. Magic tape is provided on the inner wall of the built-in safety helmet 5 for pasting with the detachable protection cap. A safety helmet face shield 6 is installed at the head part of the fire and chemical protection outer protection suit. The safety helmet face shield 6 adopts a multi-layer structure of heat-insulating gold-plated face screen and radiation-proof organic lead glass, which can play a role in heat insulation and facial nuclear radiation protection; buttons or zippers are provided on the inner part of the waist of the fire and chemical protection outer protection suit for installation connection and disassembly with the detachable radiation protection leggings 11; the hands of the fire and chemical protection outer protection suit are processed and manufactured with multi-layer materials of butyl rubber, lead rubber, and knitted aramid lining, and the connection with the protective clothing is sealed and can be replaced; the feet of the fire and chemical protection outer protection suit are an integrated chemical and radiation protection multi-layer protective sock cover and boot flap. The multi-layer protective sock cover is also made of butyl rubber, lead rubber, and knitted aramid lining respectively. The boot flap can cover the protective boot barrel to provide multiple protections for the feet. This device enables the entire fire and chemical protection outer protection suit to be stably placed on the radiation protection inner part, so that when personnel wear it, it will not be loose, facilitating safe construction for personnel and not affecting construction operations.

[0044] The fire and chemical protection outer protective suit can provide comprehensive fire and chemical protection for the human body, can resist more than 95% of the thermal radiation, can block the intrusion of chemical substances such as sodium, acids and alkalis, steam, aerosol, etc., and is equipped with a safety helmet face shield with a radiation-proof organic lead glass layer, five-finger gloves with a lead rubber layer and protective sock covers combined with a detachable ray protection inner part, and can provide comprehensive 0.25mmPb - 0.75mmPb nuclear radiation protection for the face, hands, feet, head, neck, torso and limbs.

[0045] The technical scope of the present utility model is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. A personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage, characterized in that: include: Radiation protection inner parts, the radiation protection inner parts comprising a detachable radiation protection cap (9), a detachable high-collar radiation protection top (10) and detachable radiation protection leggings (11); The detachable radiation protection cap (9), the detachable high-collar radiation protection top (10) and the detachable radiation protection leggings (11) are all made of lead rubber or any one of polyethylene, polyvinyl chloride and tantalum composite materials having nuclear radiation shielding capability; A fireproof and radioactive chemical outer protective suit, which is placed outside the radiation protection inner part to completely seal the person wearing the radiation protection inner part; The fire and chemical protection outer protective suit comprises an aluminum-coated flame-retardant composite fabric layer (12), a multi-layer composite fabric layer (13) and a barrier film layer (14) which are fixedly connected in sequence from the outside to the inside; The detachable radiation protection helmet (9), the detachable high-collar radiation protection top (10) and the detachable radiation protection leggings (11) are all fixedly connected to the fire and chemical protection outer protection suit.

2. A personal protective suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 1, characterized in that: The detachable radiation protection cap (9) is fixedly connected to the fire and chemical protection outer protection suit via Velcro; The detachable high-collar radiation protection jacket (10) is fixedly connected to the fireproof and chemical-proof outer protective suit via a zipper mechanism; The detachable radiation protection leggings (11) are fixed to the fire and chemical protection outer suit via a waist button mechanism; The fireproof and chemical-proof outer protective suit is provided with a front airtight PVC zipper entrance (1), which is convenient for personnel to wear and easy for manual operation to stably place the fireproof and chemical-proof outer protective suit on the detachable radiation protection helmet (9), the detachable high-collar radiation protection top (10) and the detachable radiation protection leggings (11), thereby facilitating construction work for personnel.

3. A personal protective suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: The fire and chemical protection outer protective suit is provided with a pocket (4).

4. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: The fire and chemical protection outer protective suit is provided with a back protrusion (2) for internally equipping a respirator, and the back protrusion (2) is provided with an exhalation exhaust valve (3) for exhausting exhaled gas.

5. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: A built-in safety helmet (5) is arranged inside the head of the fireproof and chemical-proof outer protective suit, and a Velcro is arranged on the inner wall of the built-in safety helmet (5) so as to be attached to a detachable radiation protection helmet (9). A safety helmet mask (6) is installed on the built-in safety helmet (5), and the safety helmet mask (6) comprises a heat-insulating gold-plated face screen and a radiation-proof organic lead glass layer from the outside to the inside.

6. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: The front airtight PVC zipper entrance (1) of the fireproof and chemical-proof outer protective suit is provided with zippers on both sides for installation, connection and removal with a detachable high-collar radiation protection top (10); The fire and chemical protection outer protective suit is provided with buttons or zippers on the inner lining of the waist for connecting with the detachable radiation protection leggings (11).

7. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 1, characterized in that: The hand part of the fireproof and chemical-proof outer protective suit is provided with hand protection (7), and the hand protection comprises a five-finger glove, and the five-finger glove comprises a butyl rubber layer, a lead rubber layer and a knitted aramid lining layer from the outside to the inside.

8. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: The foot part of the fireproof and chemical-proof outer protective suit is provided with foot protection (8), and the foot protection (8) comprises a multi-layer protective sock and a boot collar covering the outside of the multi-layer protective sock. The multi-layer protective sock comprises a butyl rubber layer, a lead rubber layer and a knitted aramid lining layer from the outside to the inside, and the boot collar covers the outside of the butyl rubber layer.

9. The personal protection suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 2, characterized in that: The zipper mechanism comprises a first connecting cloth (15) and a second connecting cloth (16); the second connecting cloth (16) is fixedly connected to both sides of the front of the detachable high-collar radiation protection top (10); two second connecting cloths (16) are fixedly connected to the inner side of the fire and radiochemical protection suit; the two second connecting cloths (16) are respectively located on both sides of the front airtight PVC zipper entrance (1); a first chain body (18) is installed on the second connecting cloth (16); a second chain body (17) is installed on the first connecting cloth (15); the first chain body (18) and the second chain body (17) constitute a clothing zipper.

10. A personal protective suit capable of simultaneously preventing nuclear radiation damage and sodium chemical damage according to claim 9, characterized in that: The waist button mechanism comprises a third connecting cloth (19), a plurality of third connecting cloths (19) are fixedly connected to the inner side of the fire and radiochemical protection suit, buttons (20) are fastened to the third connecting cloth (19), a plurality of fourth connecting cloths (21) are fixedly connected to the outer wall of the detachable radiation protection leggings (11), slits (22) are provided on the fourth connecting cloth (21), and the plurality of buttons (20) are respectively locked in the plurality of slits (22).

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