CN108969923B - Tritium adsorption structure, tritium prevention filter box, tritium adsorption method and radiation prevention mask - Google Patents
Tritium adsorption structure, tritium prevention filter box, tritium adsorption method and radiation prevention mask Download PDFInfo
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- CN108969923B CN108969923B CN201810388423.3A CN201810388423A CN108969923B CN 108969923 B CN108969923 B CN 108969923B CN 201810388423 A CN201810388423 A CN 201810388423A CN 108969923 B CN108969923 B CN 108969923B
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- 229910052722 tritium Inorganic materials 0.000 title claims abstract description 206
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 201
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 177
- 230000005855 radiation Effects 0.000 title claims abstract description 45
- 230000002265 prevention Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000011087 paperboard Substances 0.000 claims abstract description 80
- 239000000123 paper Substances 0.000 claims abstract description 78
- 238000010521 absorption reaction Methods 0.000 claims abstract description 38
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 34
- 239000011111 cardboard Substances 0.000 claims abstract description 22
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 230000002745 absorbent Effects 0.000 claims description 72
- 239000002250 absorbent Substances 0.000 claims description 72
- 238000000926 separation method Methods 0.000 claims description 23
- 238000002788 crimping Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 2
- 208000000059 Dyspnea Diseases 0.000 abstract description 2
- 206010013975 Dyspnoeas Diseases 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 4
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005255 beta decay Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003649 tritium Chemical class 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Pulmonology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A tritium adsorption structure, a tritium prevention filter box, a tritium adsorption method and a radiation protection mask, wherein the tritium adsorption structure comprises an adsorption paper board, the material of the adsorption paper board is wood pulp fiber, and a tooth-shaped structure extending along the length direction of the adsorption paper board is arranged on at least one surface of the adsorption paper board. According to the tritium adsorption structure, the tritium prevention filter box, the tritium adsorption method and the radiation protection mask, the adsorption paper board is wood pulp fiber, so that the tritium adsorption structure has good water absorption performance, and water can be absorbed and expanded to form a water environment; simultaneously, utilize the profile of tooth structure on the absorption cardboard can effectively prevent the absorption cardboard and take place the problem that collapses easily after absorbing water, effectively improve the structural strength of absorption cardboard. In addition, when the paper ring structure is formed by curling the adsorption paper board, due to the arrangement of the tooth-shaped structure, a plurality of breathing channels through which air can pass can be formed in the paper ring structure, so that when a user wears the paper ring structure, good breathing channels can be formed, and the situation that the user has dyspnea is avoided.
Description
Technical Field
The invention relates to the technical field of radiation protection, in particular to a tritium adsorption structure, a tritium prevention filter box, a tritium adsorption method and a radiation protection mask.
Background
Tritium, also known as extra-heavy hydrogen, is one of the isotopes of hydrogen, its elemental symbol being T or H, its nucleus consisting of one proton and two neutrons, and carrying radioactivity, will undergo beta decay. Tritium is not only expensive, but also not readily available; meanwhile, tritium is a radionuclide with strong mobility, leakage of the radionuclide not only can pollute the environment, but also can bring great harm to human bodies, and especially when the human bodies adsorb a large amount of tritium, direct internal irradiation can be caused to human body cells, so that the health of inhalators is seriously endangered. Therefore, however, all tritium-related operations must be performed with stringent radiation protection and environmental emission requirements.
Currently, most radiation workers wear tritium-proof masks to prevent a large amount of tritium from being inhaled, however, the filter elements in most tritium-proof masks usually adopt active metal getters to adsorb tritium. In this way, since the metal getter itself has a sufficient weight, the worker wears for a long time, resulting in a decrease in wearing comfort; in addition, because the filter box is only used as a carrier for adsorbing tritium, the filter box cannot ensure the breathing requirement of workers when wearing the tritium-proof mask, so that the occurrence of anoxic conditions can be caused, and the safety of the wearer cannot be ensured.
Disclosure of Invention
The embodiment of the invention discloses a tritium adsorption structure, a tritium prevention filter box, a tritium adsorption method and a radiation protection mask, which can effectively adsorb tritium and ensure the breathing requirement of a user.
In a first aspect, the present invention provides a tritium adsorption structure comprising
The adsorption paper board is made of wood pulp fibers, and at least one surface of the adsorption paper board is provided with a tooth-shaped structure extending along the length direction of the adsorption paper board.
The adsorption paper board adopts wood pulp fiber, and the wood pulp fiber is easy to expand in wet water, so that the adsorption paper has good water absorption performance, and a good water environment is provided for the subsequent adsorption of tritium water.
As an alternative embodiment, in an example of the first aspect of the present invention, the suction cardboard includes a curled outer end and a curled inner end disposed opposite to each other in a length direction thereof, the curled outer end is capable of being curled around an end of the curled inner end to form a loop structure, and when the suction cardboard is curled in a length extending direction thereof to form a loop structure, the surface provided with the tooth structure forms an inner surface of the loop structure.
In an alternative embodiment, in an embodiment of the first aspect of the present invention, the paper ring structure includes a plurality of loops sleeved in sequence, the surface provided with the tooth-shaped structures forms an inner surface of each loop, and a respiratory passage is formed between the tooth-shaped structure of any one of the loops and an outer surface of the loop adjacent to the tooth-shaped structure.
That is, air can pass through the breathing channel formed between the tooth-shaped structure of any ring and the outer surface of the ring adjacent to the tooth-shaped structure, so that when the tritium adsorption structure is applied to the tritium-proof filter box, a radiation worker can breathe smoothly through the breathing channel, and further the breathing safety of the radiation worker using the tritium-proof filter box is effectively ensured.
As an alternative embodiment, in the embodiment of the first aspect of the present invention, the tooth-shaped structure is continuously disposed on the absorbent board, and the tooth-shaped structure is a corrugated structure or a zigzag structure.
In an embodiment of the first aspect of the present invention, the tooth-shaped structure is a corrugated structure, and includes a plurality of continuous peaks and valleys, the peaks and the valleys are both arc-shaped structures, the radius of each peak is equal to that of each valley, the radius of each peak is 0.1 mm-2 mm, the height of each peak is 0.01 mm-5.0 mm, and the distance between two adjacent peaks is 1 mm-30 mm.
Wherein, because crest and trough set up in succession, when the wet water of absorption cardboard, the crest reaches the trough can prevent effectively that the absorption cardboard from collapsing to ensure that the absorption cardboard has good water locking ability.
Preferably, in order to improve the collapse resistance and the adsorption capacity of the adsorption paperboard to tritium water, at least one ventilation micropore is arranged on each wave crest, and the adsorption paperboard can form a porous structure by utilizing the ventilation micropores, so that the adsorption of the tritium water is facilitated.
As an alternative embodiment, in the example of the first aspect of the invention, the thickness of the adsorption paper board is 0.1mm plus or minus 0.02mm to 5mm plus or minus 0.02mm, and the gram weight of the adsorption paper board is 20g/m 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 The initial water absorption rate of the adsorption paper board is 4% -8%, and the final water absorption rate of the adsorption paper board is more than or equal to 60%.
Wherein the thickness of the absorbent paperboard may be any value between 0.1mm + -0.02 mm and 5mm + -0.02 mm, e.g., the absorbent paperboard may have a thickness of 0.12mm, 0.14mm, 0.16mm, 0.2mm, 0.22mm, 0.24mm, 0.26mm, 0.28mm, 0.3mm, 0.32mm, 0.34mm, 0.35mm, 0.38mm, 0.4mm, 0.42mm, 0.44mm, 0.45mm, 0.48mm, 0.5mm, 0.52mm, etc. The absorbent paperboard may have a grammage of at least 20g/m 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 At any point in the range, the absorbent paperboard may have a grammage of 10g/m, for example 2 、20g/m 2 、30g/m 2 、40g/m 2 、50g/m 2 、60g/m 2 、70g/m 2 、80g/m 2 、90g/m 2 、100g/m 2 、120g/m 2 、140g/m 2 、150g/m 2 、160g/m 2 、170g/m 2 、180g/m 2 、190g/m 2 、200g/m 2 、210g/m 2 、220g/m 2 、230g/m 2 、240g/m 2 、250g/m 2 、260g/m 2 Etc.
By adopting the adsorption paper board with proper thickness and gram weight, the problem that the adsorption paper board is easy to collapse and destroy after absorbing water can be effectively avoided, and a favorable foundation is provided for the water environment adsorption tritium water for the subsequent water absorption construction of the adsorption paper board.
The invention also discloses a tritium-proof filter box, which comprises a shell and the tritium adsorption structure, wherein the tritium adsorption structure is curled in the shell along the length extension direction of the tritium adsorption structure, the tritium adsorption structure is curled in the shell to form a paper ring structure, and the surface provided with the tooth-shaped structure is the inner surface of the paper ring structure.
The anti-tritium filter box is made of 25g ABS, so that the anti-tritium filter box has good portability, and when a user wears the anti-tritium filter box, the wearing comfort of the user can be effectively improved by reducing the weight of the anti-tritium filter box.
In an alternative embodiment, in the embodiment of the second aspect of the present invention, the paper ring structure has a hollow portion, the housing is a hollow cylindrical structure with at least one end open, the tritium-proof filter box further includes at least one cover plate, the cover plate is connected with the housing and seals the opening of the housing, a support rod is disposed on a surface of one of the cover plates facing the interior of the housing, and the support rod penetrates into the hollow portion of the paper ring structure.
In an alternative embodiment, in an embodiment of the second aspect of the present invention, a separation groove is provided on the support rod, the separation groove extends from a start end to an end in a length direction of the support rod, so as to separate the support rod into two parts that are isolated from each other, one end of the tritium adsorption structure in a length extending direction of the tritium adsorption structure is clamped in the separation groove, and the other end of the tritium adsorption structure in the length extending direction of the tritium adsorption structure is curled by taking a center of the support rod as an axis to form the paper ring structure.
As an alternative embodiment, in an example of the second aspect of the present invention, the suction cardboard includes a curled outer end and a curled inner end disposed opposite to each other in a length direction thereof, the curled outer end is capable of being curled around an end of the curled inner end to form a loop structure, and when the suction cardboard is curled in a length direction thereof to form a loop structure, the surface provided with the tooth structure forms an inner surface of the loop structure.
In an alternative embodiment, in an embodiment of the second aspect of the present invention, the paper ring structure includes a plurality of loops sleeved in sequence, the surface provided with the tooth-shaped structures forms an inner surface of each loop, and a respiratory passage is formed between the tooth-shaped structure of any one of the loops and an outer surface of the loop adjacent to the tooth-shaped structure.
As an alternative embodiment, in an embodiment of the second aspect of the present invention, the tooth-shaped structure is continuously disposed on the absorbent board, and the tooth-shaped structure is a corrugated structure or a zigzag structure.
In an embodiment of the second aspect of the present invention, the tooth-shaped structure is a corrugated structure, and includes a plurality of continuous peaks and valleys, the peaks and the valleys are both arc-shaped structures, the radius of each peak is equal to the radius of each valley, the radius of each peak is 0.1 mm-2 mm, the height of each peak is 0.01 mm-5.0 mm, and the distance between two adjacent peaks is 1 mm-30 mm.
As an alternative embodiment, in the example of the second aspect of the invention, the thickness of the adsorption paper board is 0.1mm plus or minus 0.02mm to 5mm plus or minus 0.02mm, and the gram weight of the adsorption paper board is 20g/m 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 The initial water absorption rate of the adsorption paper board is 4% -8%, and the final water absorption rate of the adsorption paper board is more than or equal to 60%.
In a third aspect, the invention also provides a radiation protection mask, which comprises a mask body and the tritium protection filter box, wherein the tritium protection filter box is arranged in the mask body.
In an embodiment of the third aspect of the present invention, the housing of the tritium-preventing filter cartridge is a hollow cylindrical structure with at least one end open, the paper ring structure of the tritium adsorption structure has a hollow portion, the tritium-preventing filter cartridge further includes at least one cover plate, the cover plate is connected with the housing and seals the opening of the housing, a support rod is disposed on a surface of one cover plate facing the interior of the housing, and the support rod is disposed in the hollow portion of the paper ring structure in a penetrating manner.
In an alternative embodiment, in an embodiment of the third aspect of the present invention, the support rod is provided with a separation groove, the separation groove extends from a start end to an end in a length direction of the support rod so as to separate the support rod into two parts that are isolated from each other, one end of the tritium adsorption structure in a length extending direction of the tritium adsorption structure is clamped in the separation groove, and the other end of the tritium adsorption structure in the length extending direction of the tritium adsorption structure is curled by taking a center of the support rod as an axis to form the paper ring structure.
In a fourth aspect, the present invention also provides a tritium adsorption method, which adopts the tritium prevention filter cartridge, and the method comprises the following steps:
water absorption: wet water is absorbed by the tritium adsorption structure, so that the tritium adsorption structure absorbs water to form a water environment;
crimping: the tritium adsorption structure is curled along the length extension direction to form a paper ring structure and is fixed in the shell of the tritium prevention filter box;
adsorption: introducing tritium water into the tritium adsorption structure, wherein the tritium water is adsorbed to the water environment formed by the tritium adsorption structure.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the tritium adsorption structure, the tritium prevention filter box and the radiation protection mask, the adsorption paper board is made of wood pulp fibers, so that the adsorption paper board has good water absorption performance, and water can be absorbed and expanded to form a water environment; simultaneously, be equipped with the profile of tooth structure that extends the setting along the length direction of absorption cardboard on the surface of absorption cardboard, utilize this profile of tooth structure can effectively prevent this absorption cardboard and take place the problem that collapses easily after absorbing water, effectively improve the structural strength of this absorption cardboard. In addition, adopt the design of this profile of tooth structure, when curl this absorption cardboard and form the paper circle structure, be equipped with the internal surface that this profile of tooth structure can regard as this paper circle structure on the surface, at this moment, because this profile of tooth structure's setting forms a plurality of breathing passageways in this paper circle structure, this breathing passageway can supply the air to pass through to when the user wears, can effectively ensure that the user has good breathing passageway, avoid the user to appear the condition of dyspnea.
According to the tritium adsorption structure, the tritium prevention filter box and the radiation protection mask, as the tritium adsorption structure adopts the adsorption paper board, the tritium adsorption structure is light in weight and has good portability even after being wetted, so that wearing comfort of a user is effectively improved.
In addition, according to the tritium adsorption method provided by the invention, the tritium adsorption structure wets water to form a water environment, so that when tritium water (tritium exists in the form of water vapor at normal temperature) passes through the tritium adsorption structure, the physical property of the tritium water is similar to that of the water vapor, so that the tritium water can be adsorbed by the water vapor in the tritium adsorption structure, serious physical health problems caused by the adsorption of the tritium water by a human body can be effectively avoided, and the working safety of a radiation worker is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a tritium adsorption structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a tritium adsorption structure curled to form a paper ring structure according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of III in FIG. 2;
FIG. 4 is a schematic structural diagram of a tritium-proof cartridge according to a second embodiment of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;
fig. 6 is a schematic structural diagram of a cover plate according to a second embodiment of the present invention;
FIG. 7 is a flow chart of a tritium adsorption method provided in example IV of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The following detailed description is made with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 3, a schematic structural diagram of a tritium adsorption structure according to a first embodiment of the present invention is shown. The tritium adsorption structure 100 provided by the embodiment of the invention comprises an adsorption paperboard 10, wherein the adsorption paperboard 10 is made of wood pulp fibers, and at least one surface of the adsorption paperboard 10 is provided with a tooth-shaped structure 11 extending along the length direction of the adsorption paperboard 10.
In this embodiment, the absorbent board 10 is made of long-fiber wood pulp, so that the absorbent board 10 has good water absorption performance, and provides a good water environment for the subsequent absorption of tritium water (i.e., tritium existing in the form of water vapor at normal temperature).
Further, the suction paperboard 10 includes a curled outer end 10a and a curled inner end 10b which are oppositely disposed along its own length direction, the curled outer end 10a is capable of being curled around the curled inner end 10b with an end of the curled inner end 10b as an axis to form a loop structure 10c, and when the suction paperboard 10 is curled along its own length extending direction to form the loop structure 10c, a surface provided with the tooth structure 11 forms an inner surface of the loop structure 10c. Specifically, the above tooth structure 11 is disposed on one surface of the absorbent paper, and the absorbent paper sheet 10 is flexible, that is, the absorbent paper sheet 10 can be curled to form a paper ring structure 10c. In addition, the surface provided with the tooth-shaped structure 11 forms the inner surface of the paper ring structure 10c when curled, and the structural strength of the absorbent paper board 10 can be effectively improved by utilizing the tooth-shaped structure 11, so that the absorbent paper board 10 is prevented from collapsing easily after water swelling. In addition, since the tooth-shaped structure 11 is provided on the surface of the adsorption paper board 10, the inside of the paper ring structure 10c can be formed with continuous, high-low arranged gaps, thereby allowing air to pass through. It should be appreciated that the paper loop structure 10c refers to: the absorbent paperboard 10 is curled along its own length to form a multi-turn circular structure.
Further, the paper ring structure 10c includes a plurality of loops 101 sleeved in turn, the surface provided with the tooth-shaped structures 11 forms an inner surface of each loop 101, and a respiration channel 102 is formed between the tooth-shaped structure 11 on any one loop 101 and an outer surface of the adjacent loop 101. That is, when the absorbent paper sheet 10 is curled along its own length to form a paper ring structure 10c, the paper ring structure 10c is formed by a layer of rings 101 sleeved one by one, the tooth-shaped structure 11 is disposed on the inner surface of each ring 101, and since the tooth-shaped structures 11 are disposed continuously, there may be a gap between the tooth-shaped structure 11 on the inner surface of any ring 101 and the outer surface of the ring 101 adjacent thereto, and the gap forms the breathing channel 102.
In this embodiment, the tooth-shaped structure 11 is continuously disposed on the absorbent board 10, and the tooth-shaped structure 11 is a corrugated structure or a zigzag structure. Specifically, the tooth-shaped structure 11 is integrally formed on the absorbent board 10, that is, when the absorbent board 10 is formed, the tooth-shaped structure 11 and the absorbent board 10 can be integrally formed, so as to reduce the forming process, and simultaneously ensure the structural stability and the connection reliability of the tooth-shaped structure 11 on the absorbent board 10.
Further, the tooth-shaped structure 11 is a corrugated structure, and includes a plurality of continuously arranged peaks 11a and valleys 11b, wherein the peaks 11a and valleys 11b are arc-shaped structures, the radius of the peaks 11a can be equal to the radius of the valleys 11b, and the radius of the peaks 11a is 0.1 mm-2 mm. Specifically, the peak 11a and the trough 11b are both circular arcs, and an intermediate section is formed between the peak 11a and the trough 11b, and the peak of the peak 11a and the lowest point of the trough 11b are both tangent to the intermediate section. Preferably, the radius of the peak 11a and the radius of the trough 11b may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 1.0mm, 1.5mm, 2.0m, etc., and the specific values may be selected according to the specifications of the actual absorbent board 10. It is understood that in other embodiments, the peaks 11a and the valleys 11b may be triangular structures or concave structures, and when the peaks 11a and the valleys 11b are triangular structures or concave structures, the widths of the peaks 11a and the valleys 11b may be equal or different, and may be selected according to the specifications of the actual absorbent board 10.
Further, since the tooth structure 11 is a corrugated structure, when the suction paperboard 10 is curled in its own length extending direction to form the paper ring structure 10c, the surface provided with the corrugated structure forms the inner surface of the paper ring structure 10c. Meanwhile, since the paper ring structure 10c includes the plurality of loops 101 sleeved in turn, and the surface having the corrugated structure forms the inner surface of each loop 101, it can be known that the peak 11a on any one loop 101 can be in contact with the outer surface of the adjacent loop 101, and at this time, the gap is formed between the trough 11b on any one loop 101 and the outer surface of the adjacent loop 101, and the gap forms the breathing channel 102. Therefore, the purpose of providing the tooth-shaped structure 11 on the absorbent paper board 10 is not only to improve the structural strength of the absorbent paper board 10 after absorbing water and prevent the absorbent paper board 10 from collapsing after absorbing water, but also to form the breathing channel 102 after the absorbent paper board 10 is curled to form the paper ring structure 10c, so that when the absorbent paper board 10 is applied to the tritium-proof filter box, the breathing channel 102 can ensure good and smooth breathing environment for a radiation worker when wearing the tritium-proof filter box, and further effectively solve the problem that the inside of the common metal filter box is fully sealed and thus oxygen deficiency is easy to occur.
Further, in order to ensure that the corrugated structure not only can effectively prevent the absorbent paper board 10 from collapsing when the absorbent paper board 10 is curled to form the paper ring structure 10c, but also can effectively ensure that the inside of the paper ring structure 10c can form a breathing channel 102 for air circulation, the height h of each peak 11a can be 0.01mm to 5.0mm, and the distance between two adjacent peaks 11a can be 1mm to 30mm. Preferably, the height of each peak 11a may be 1.0mm, 1.05mm, 1.15mm, 1.2mm, 1.25mm, 1.3mm, 1.35mm, 1.4mm, 1.45mm, 1.5mm, 1.55mm, 1.6mm, 1.65mm, 1.7mm, 1.75mm, 1.8mm, 1.85mm, 1.9mm, 1.95mm, 2.0mm, 3mm, 4mm, 5mm, etc. The distance between two adjacent peaks 11a may be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 15mm, 18mm, 20mm, 25mm, 28mm, 30mm, etc.
Furthermore, in order to effectively improve the collapse preventing performance and the tritium water absorbing capacity of the absorbing cardboard 10, at least one ventilation micropore (not shown) is disposed on each peak 11a, and the absorbing cardboard 10 can form a porous structure by using the ventilation micropores, thereby facilitating the tritium water absorption. Specifically, each peak 11a is provided with a ventilation micropore, and the ventilation micropore may be a round hole, a square hole, a triangular hole or the like.
In the present embodiment, in order to make the absorbent board 10 have good water absorption and water locking properties, the thickness t of the absorbent board 10 may be 0.1 mm.+ -. 0.02mm to 5 mm.+ -. 0.02mm, and the grammage of the absorbent board 10 may be 20g/m 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 . In particular, in order to provide the absorbent paperboard 10 with good portability to ensure that it remains lightweight after swelling by absorbing water, and to avoid the situation where the user wears the absorbent paperboard with excessive mass, the absorbent paperboard 10 may preferably have a thickness t of 0.12mm, 0.14mm, 0.16mm, 0.2mm, 0.22mm, 0.24mm, 0.28mm, 0.3mm, 0.32mm, 0.34mm, 0.35mm, 0.38mm, 0.4mm, 0.42mm, 0.44mm, 0.45mm, 0.48mm, 0.5mm or 0.52mm, etc. The grammage of the absorbent paperboard 10 may preferably be 10g/m 2 、20g/m 2 、30g/m 2 、40g/m 2 、50g/m 2 、60g/m 2 、70g/m 2 、80g/m 2 、90g/m 2 、100g/m 2 、120g/m 2 、140g/m 2 、150g/m 2 、160g/m 2 、170g/m 2 、180g/m 2 、190g/m 2 、200g/m 2 、210g/m 2 、220g/m 2 、230g/m 2 、240g/m 2 、250g/m 2 、260g/m 2 Etc. It should be appreciated that since the absorbent board 10 has good water absorption, the grammage of the absorbent board 10 should not be too small in order to effectively avoid easy collapse of the absorbent board 10 after absorbing water, i.e. when the grammage of the absorbent board 10 is 20g/m of the present invention 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 When the corrugated structure of the absorbent board 10 adopts the above parameters, the absorbent board 10 has good water absorption and locking capability, and is not easy to collapse.
Further, the absorbent board 10 has an initial water absorption of 4% to 8%, and the absorbent board 10 has a final water absorption of 60% or more. That is, the absorbent paper sheet 10 is kept in a substantially dry or nearly dry state before the water is not absorbed, and when the absorbent paper sheet 10 absorbs water, it is effectively expanded and kept in a wet state, and at this time, the water absorbed on the absorbent paper sheet 10 does not form droplets.
Preferably, the absorbent board 10 has an initial water absorption of any point value in the range of 4% to 8%, for example, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5% or 8%, etc. The absorbent paperboard 10 may have a final water absorption of 60%, 61%, 62%, 63%, 64%, 65%, 68%, 70%, 72%, 75%, 78%, 80%, etc.
Further, when not wet, the lateral tension of the absorbent paper board 10 may be 12.03kg/15mm, and the longitudinal tension of the absorbent paper board 10 may be 18.81kg/5mm, that is, the absorbent paper board 10 has good tear resistance, so that tear damage can be prevented.
According to the tritium adsorption structure 100 provided by the embodiment of the invention, through limiting the gram weight and the thickness of the adsorption paperboard 10 and the parameters of the peaks 11a and the troughs 11b of the corrugated structure positioned on the adsorption paperboard 10, the adsorption paperboard 10 has good water absorption and water locking performance, and meanwhile, the adsorption paperboard 10 can also have good structural strength in wet water and is not easy to collapse. In addition, the wave crests 11a and the wave troughs 11b of the corrugated structure are positioned on the inner surface of the paper ring structure 10c formed by curling, so that a breathing channel 102 through which air can pass is formed between the wave crests 11a and the wave troughs 11b, when the tritium adsorption structure 100 is applied to a tritium-proof filter box for a radiation worker to wear, the breathing of the radiation worker can be effectively ensured, the anoxic condition of the radiation worker after wearing is fundamentally avoided, and the breathing safety of the radiation worker is effectively ensured.
Example two
Referring to fig. 1 and fig. 4 to fig. 6, a tritium-proof filter cartridge 200 is provided in a second embodiment of the present invention, wherein the tritium-proof filter cartridge 200 includes a housing 20 and the tritium adsorption structure 100, and the tritium adsorption structure 100 is curled in the housing 20 along the length extension direction thereof. Inside the housing 20, the tritium adsorption structure 100 is curled to form a paper ring structure 10c, and the surface provided with the tooth-shaped structure 11 is the inner surface of the paper ring structure 10c. Specifically, according to the description of the first embodiment of the present invention, the paper ring structure 10c of the tritium adsorption structure 100 is actually formed by winding one end of the adsorption paper along the length direction thereof (i.e. can be seen as a plurality of rings 101 sleeved in sequence), and the tooth-shaped structure 11 actually includes continuously arranged peaks 11a and valleys 11b, so that a gap exists between the valley 11b on the inner surface of any one ring 101 and the outer surface of the adjacent ring 101, and the gap can form the breathing channel 102.
By adopting the arrangement mode, the tritium-proof filter box 200 can be used for filtering tritium by a radiation worker, for example, the tritium-proof filter box 200 can be combined with a mask or other equipment to serve as a filter element, the radiation worker can wear the mask with the tritium-proof filter box 200 serving as the filter element, at the moment, the radiation worker can breathe through the breathing channel 102 formed by the tooth-shaped structure 11 (such as a corrugated structure), and tritium water is adsorbed by the tritium-proof filter box 200, so that smooth breathing of the radiation worker when wearing the mask can be ensured, and the radiation worker can be effectively ensured to avoid the condition that the radiation worker is harmful to body health due to excessive tritium inhalation.
Specifically, the housing 20 is a cylindrical housing adapted to the cylindrical structure formed by the tritium adsorption structure 100, and in order to effectively reduce the overall weight of the tritium prevention filter cartridge 200, the housing 20 may preferably be made of ABS (acrylonitrile-butadiene-styrene) plastic (acrylonitrile-butadiene-styrene copolymer), and the self weight of the housing 20 may be 20-30 g. Preferably, the housing 20 may have a weight of 20g, 21g, 22g, 23g, 24g, 25g, 26g, 27g, 28g, 29g, 30g, etc. In addition, in order to effectively control the overall weight of the tritium-resistant cartridge 200, the weight of the tritium adsorption structure 100 plus the weight of the housing 20 can be (70-85) g+ -2 g when the tritium adsorption structure 100 is installed within the housing 20. Preferably, the overall weight of the tritium adsorption structure 100 plus the housing 20 can be 72g, 74g, 76g, 78g, 80g, 82g, 84g, 86g, 87g, etc.
In this embodiment, the housing 20 can be a hollow cylindrical structure having at least one end open to enable the tritium adsorption structure 100 to be mounted therein. That is, upon installation, the tritium adsorbing structure 100 (i.e., the adsorbing cardboard 10) is curled into a paper ring structure 10c along its own length extension direction and then placed into the housing 20, so that the tritium adsorbing structure 100 can remain curled within the housing 20 due to the restraining action of the housing 20 on the tritium adsorbing structure 100. Specifically, the housing 20 can have only one end opening through which the tritium adsorption structure 100 extends into the housing 20.
Further, the paper ring structure 10c has a hollow portion, i.e., the middle portion of the paper ring structure 10c has a gap for other components to pass through. The tritium-proof filter cartridge 200 further comprises at least one cover plate 21, wherein the cover plate 21 is connected with the housing 20 and seals the opening of the housing 20, a support rod 21a is disposed on the surface of one cover plate 21 facing the interior of the housing 20, and the support rod 21a is inserted into the hollow portion of the paper ring structure 10c formed by crimping the tritium adsorption structure 100. Specifically, the number of the cover plates 21 should be consistent with the number of the openings of the housing 20, for example, when the housing 20 is only one end opening, the cover plates 21 may be one piece; when the housing 20 is open at both ends, the cover 21 is correspondingly two. The embodiment of the present invention is described by taking the opening of the housing 20 as one example, and the cover 21 as one piece.
Further, the cover plate 21 is a circular cover plate 21, and the cover plate 21 can be covered on an opening at one end of the housing 20 to close the opening of the housing 20, so that the tritium adsorption structure 100 can be prevented from falling out of the opening of the housing 20. Specifically, the cover plate 21 is provided with a plurality of through holes 210 so that gas can flow from within the through holes 210 to the tritium adsorption structure 100. The support bar 21a is disposed on the lower surface (i.e. the surface facing the inside of the housing 20) of the cover plate 21, the support bar 21a is in a bar-shaped structure, and when the tritium adsorption structure 100 is curled and located in the housing 20, the support bar 21a is located in the hollow portion of the coil structure 10c formed by the curling of the tritium adsorption structure 100.
Further, in order to fix the tritium adsorption structure 100 in the housing 20, the support bar 21a may be provided with a separation groove 211, and the separation groove 211 extends from the start end to the end of the support bar 21a in the length direction so as to separate the support bar 21a into two parts isolated from each other. One end of the tritium adsorption structure 100 along its own length extending direction is engaged in the separation groove 211, and the other end of the tritium adsorption structure 100 along its own length extending direction is curled with the center of the supporting rod 21a as an axis to form the paper ring structure 10c. Specifically, the separation groove 211 separates the support bar 21a into a first portion 212 and a second portion 213 that are isolated from each other, the separation groove 211 is disposed between the first portion 212 and the second portion 213, and one end of the tritium adsorption structure 100 along the extending direction of the length thereof extends into the separation groove 211 and is engaged in the separation groove 211 due to the blocking effect of the first portion 212 and the second portion 213. At this time, since one end of the tritium adsorption structure 100 is already engaged with and fixed to the separation groove 211, the other end of the tritium adsorption structure 100 along its own length extension direction can be curled with the center of the support bar 21a as an axis, thereby forming the hollow paper ring structure 10c.
Further, in order to better fix the tritium adsorption structure 100 in the housing 20, the first portion 212 and the second portion 213 are provided with protrusions 212a and 212b on the surface of the first portion 212 and the second portion 213 located in the separation groove 211, and the protrusions 212a and 212b can be used to further fix the tritium adsorption structure 100, so as to effectively prevent one end of the tritium adsorption structure 100 from falling out of the separation groove.
Further, in order to facilitate the tritium adsorbing structure 100 winding the supporting bar 21a to form a hollow paper roll structure 10c, the outer surfaces of the first portion 212 and the second portion 213 are respectively provided with a plurality of anti-slip ribs 212b and 213b, and two adjacent anti-slip ribs are spaced apart and can be cylindrical ribs.
In this embodiment, in order to facilitate the fixation of the tritium adsorption structure 100 after the tritium adsorption structure 100 is curled in the housing 20 to form the hollow paper ring structure 10c, a locking structure (e.g. a clamping groove) may be provided at the bottom of the housing 20, and after the other end of the tritium adsorption structure 100 along the extending direction of its own length is curled to form the paper ring structure 10c, the end thereof may be locked to the locking structure. Thus, when the tritium adsorption structure 100 is arranged in the shell 20, not only can the tritium adsorption structure 100 be fixed in the shell 20, but also the convenience of disassembly or replacement can be effectively ensured when the tritium adsorption structure 100 needs to be disassembled or replaced later.
Further, the housing 20 further includes a cover 22, the cover 22 is screwed to the housing 20, and the cover 22, the inner cavity of the housing 20 and the cover 21 form a space for accommodating the tritium adsorption structure 100.
In addition, the specific structure of the tritium adsorption structure 100 is shown in the first embodiment of the present invention, and will not be described again here.
According to the tritium-proof filter box 200 provided by the second embodiment of the invention, the tritium adsorption structure 100 is arranged in the shell 20, and the tritium adsorption structure 100 is curled in the shell 20 to form the paper ring structure 10c, and the tooth-shaped structure 11 positioned in the paper ring structure 10c can form the breathing channel 102, so that when a radiation worker wears the mask with the tritium-proof filter box 200 as a filter element, the smooth breathing of the radiation worker can be ensured. In addition, as the shell 20 of the tritium-proof filter box 200 is made of a light plastic material, the whole weight of the tritium-proof filter box 200 can be effectively ensured, and the wearing comfort of radiation workers can be effectively improved.
Specifically, to achieve adsorption of tritium water (HTO), the absorbent paperboard 10 of the tritium absorbent structure 100 may be wetted with water at first, i.e., the absorbent paperboard 10 is allowed to expand upon absorption of water, when in use. It should be appreciated that since the absorbent board 10 has the tooth-shaped structure 11 inside, the absorbent board 10 after wet water can still maintain its original shape without collapsing. In addition, when the absorbent paper sheet 10 is wet, it should be noted that the moisture content of the absorbent paper sheet 10 is preferably such that the water on the absorbent paper sheet 10 is locked in the absorbent paper sheet 10 so as not to form a state in which water drops drop down.
Further, after the absorbent paper board 10 is wet, the absorbent paper board 10 is curled to form a paper ring structure 10c, so that the surface provided with the tooth-shaped structure 11 is used as the inner surface of the paper ring structure 10c, and meanwhile, the tooth-shaped structure 11 is utilized to ensure that the overall structural strength of the tritium absorbent structure 100 is better, and the collapse condition after the wet water is avoided. In addition, by using the gap formed by the tooth-shaped structure 11 inside the paper ring structure 10c, a breathing channel 102 for air to pass through can be formed, so that when the air with tritium water passes through the paper ring structure 10c, the tritium water is absorbed by the water vapor in the paper ring structure 10c, and the air filtered with tritium water can pass through the breathing channel 102, thereby realizing the tritium absorption function of the tritium prevention filter box 200.
Example III
The third embodiment of the present invention provides a radiation protection mask, which includes a mask body (not shown) and the above tritium protection filter box 200, where the tritium protection filter box 200 is disposed in the mask body. In particular, the mask body may include a fixing portion for placing and fixing the tritium-proof cartridge 200 and a wearing portion for wearing on the face (or ear) of the radiation worker, and may preferably be made of a lightweight material (e.g., plastic, cloth, or lightweight metal such as aluminum metal, etc.) in order to reduce the overall weight of the radiation-proof mask and improve the wearing comfort of the radiation worker.
It should be appreciated that the specific structure of the tritium-proof cartridge 200 can be referred to in the second embodiment of the present invention, and will not be described herein.
According to the radiation protection mask provided by the third embodiment of the invention, the tritium protection filter box 200 is used as the filter element, so that when a radiation worker wears the radiation protection mask, the radiation protection mask not only has a light wearing comfort effect, but also can realize smooth breathing through the breathing channel 102 (mainly formed by the tooth-shaped structure 11, namely, the corrugated structure) in the tritium protection filter box 200, thereby effectively ensuring the breathing requirement of the radiation worker when wearing the radiation protection mask, fundamentally avoiding the occurrence of hypoxia condition, and further effectively ensuring the wearing breathing safety of the radiation worker.
Example IV
Referring to fig. 7, a fourth embodiment of the present invention provides a tritium adsorption method, which is implemented by using the tritium-proof cartridge, and includes the following steps:
410. water absorption: and wetting the tritium adsorption structure to enable the tritium adsorption structure to absorb water to form a water environment.
The purpose of this step is to wet the absorbent paperboard so that the absorbent paperboard will expand upon absorption of water, and because the absorbent paperboard has the tooth-shaped structure inside, the absorbent paperboard after wetting will still retain its original shape without collapsing. In this step, when the wet paper board is absorbed, the wet paper board should be noted, and the water on the absorbing paper board should be locked in the absorbing paper board, so that the water drops are not formed.
In fact, even at normal temperature, water located inside the absorbent paper sheet forms a vapor form, that is, a vapor environment is formed inside the absorbent paper sheet, whereas tritium water (represented by the chemical formula HTO) exists mainly in the form of vapor at normal temperature, and the physical properties of tritium water are similar to those of vapor, so that tritium water is easily absorbed by vapor when passing through the environment with vapor. Thus, by utilizing this physical principle, tritium water adsorption can be achieved.
420. Crimping: and curling the tritium adsorption structure along the length extension direction of the tritium adsorption structure to form a paper ring structure, and fixing the paper ring structure in the shell of the tritium prevention filter box.
The purpose of this step is to curl the tritium adsorption structure and form the paper ring structure, so, can make the surface that is equipped with this profile of tooth structure as the internal surface of this paper ring structure, simultaneously, utilize this profile of tooth structure to make this tritium adsorption structure's overall structure intensity more excellent, avoid appearing collapsing the condition after wet water. In addition, the gap formed by the tooth-shaped structure in the paper ring structure can form a breathing channel for air to pass through, so that when the air with tritium water passes through the paper ring structure, the tritium water is adsorbed by the water vapor in the paper ring structure, and the air filtered with the tritium water can pass through the breathing channel.
430. Adsorption: introducing tritium water into the tritium adsorption structure, wherein the tritium water is adsorbed to the water environment formed by the tritium adsorption structure.
This step is to achieve adsorption of tritium water. That is, with the water environment formed inside the absorbent cardboard, tritium water is easily absorbed by water vapor when passing through the water environment because the physical properties of tritium water are similar to those of water vapor. By utilizing the physical property of tritium water, the tritium adsorption structure can be applied to adsorption of tritium in a radiation environment, so that the situation that health is threatened due to the fact that tritium water is easily absorbed by a radiation worker when the radiation worker works in the radiation environment is avoided.
It should be appreciated that the specific structure of the tritium adsorption structure can be referred to the description of the first embodiment of the present invention, and the specific structure of the tritium prevention cartridge can be referred to the description of the second embodiment of the present invention, which is not repeated here.
According to the tritium adsorption method provided by the fourth embodiment of the invention, by utilizing the principle that the physical properties of tritium water at normal temperature are similar to those of water vapor, a means for realizing tritium water adsorption by utilizing water vapor is provided, and the method is different from a scheme of adopting metal adsorption conventionally, is safer and more reliable in adsorption mode and is beneficial to popularization and use.
The tritium adsorption structure, the tritium prevention filter box, the tritium adsorption method and the radiation protection mask disclosed by the embodiment of the invention are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (7)
1. A tritium-resistant cartridge, comprising:
a housing;
the tritium adsorption structure comprises an adsorption paper board, wherein the adsorption paper board is made of wood pulp fibers, and at least one surface of the adsorption paper board is provided with a tooth-shaped structure extending along the length direction of the adsorption paper board;
the tritium adsorption structure is curled in the shell along the length extending direction of the tritium adsorption structure, the tritium adsorption structure is curled in the shell to form a paper ring structure, and the surface provided with the tooth-shaped structure is the inner surface of the paper ring structure;
the tritium-proof filter box comprises a paper ring structure, a cover plate, a support rod, a sealing plate and a sealing plate, wherein the paper ring structure is provided with a hollow part, the shell is of a hollow cylindrical structure with at least one end open, the cover plate is connected with the shell and seals the opening of the shell, the surface of one cover plate facing the inside of the shell is provided with the support rod, and the support rod penetrates through the hollow part of the paper ring structure;
the tritium adsorption structure is characterized in that a separation groove is formed in the supporting rod, the separation groove extends from the starting end to the tail end in the length direction of the supporting rod so as to separate the supporting rod into two parts which are isolated from each other, one end of the tritium adsorption structure in the length extension direction of the tritium adsorption structure is clamped in the separation groove, and the other end of the tritium adsorption structure in the length extension direction of the tritium adsorption structure is curled by taking the center of the supporting rod as an axis to form the paper ring structure;
the separation groove separates the support rod into a first part and a second part which are isolated from each other, the separation groove is arranged between the first part and the second part, raised strips are arranged on the surfaces of the first part and the second part, which are positioned in the separation groove, and raised strips are arranged on the outer surfaces of the first part and the second part;
the thickness of the adsorption paper board is 0.1mm plus or minus 0.02mm to 5mm plus or minus 0.02mm, and the gram weight of the adsorption paper board is 20g/m 2 ±10g/m 2 ～500g/m 2 ±10g/m 2 The initial water absorption rate of the adsorption paper board is 4% -8%, and the final water absorption rate of the adsorption paper board is more than or equal to 60%.
2. The tritium prevention cartridge of claim 1, wherein the adsorbing cardboard includes a curled outer end and a curled inner end disposed opposite along a length thereof, the curled outer end being capable of being pivoted about an end of the curled inner end and curled about the curled inner end to form a loop structure, and the surface provided with the tooth structure forms an inner surface of the loop structure when the adsorbing cardboard is curled along a length extending direction thereof to form a loop structure.
3. The tritium-proof cartridge of claim 2, wherein the paper ring structure includes a plurality of loops nested in sequence, the surface provided with the castellated structure forms an inner surface of each of the loops, and a breathing channel is formed between the castellated structure of any one of the loops and an outer surface of the loop adjacent thereto.
4. A tritium prevention cartridge as claimed in any one of claims 1 to 3, wherein the toothed structure is provided continuously on the absorbent cardboard and the toothed structure is a corrugated or saw tooth structure.
5. The tritium-proof filter cartridge of claim 4, wherein the tooth-shaped structure is a corrugated structure and comprises a plurality of continuous wave crests and wave troughs, the wave crests and the wave troughs are arc-shaped structures, the radius of the wave crests is equal to that of the wave troughs, the radius of the wave crests is 0.1-2 mm, the height of each wave crest is 0.01-5.0 mm, and the distance between two adjacent wave crests is 1-30 mm.
6. A radiation protection mask comprising a mask body and a tritium protection cartridge according to any one of claims 1 to 5, the tritium protection cartridge being disposed within the mask body.
7. A tritium adsorption method, wherein the method employs a tritium-proof cartridge as claimed in any one of claims 1 to 5, the method comprising the steps of:
water absorption: wet water is absorbed by the tritium adsorption structure, so that the tritium adsorption structure absorbs water to form a water environment;
crimping: the tritium adsorption structure is curled along the length extension direction of the tritium adsorption structure to form a paper ring structure and is fixed in the shell of the tritium prevention filter box, one end of the tritium adsorption structure along the length extension direction of the tritium adsorption structure is clamped in the separation groove, and the convex strips of the first part and the second part are used for fixing the tritium adsorption structure;
adsorption: introducing tritium water into the tritium adsorption structure, wherein the tritium water is adsorbed to the water environment formed by the tritium adsorption structure.
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| CN201810388423.3A CN108969923B (en) | 2018-04-26 | 2018-04-26 | Tritium adsorption structure, tritium prevention filter box, tritium adsorption method and radiation prevention mask |
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| CN107744595A (en) * | 2017-11-23 | 2018-03-02 | 湖州逸邦贸易有限公司 | A kind of towel ultraviolet sterilization device of convenient use |
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| CN108969923A (en) | 2018-12-11 |
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