CN113470861A

CN113470861A - Irradiation system

Info

Publication number: CN113470861A
Application number: CN202110786851.3A
Authority: CN
Inventors: 崔爱军; 张立锋; 朱志斌; 窦玉玲; 刘保杰; 秦成
Original assignee: China Institute of Atomic of Energy
Current assignee: China Institute of Atomic of Energy
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-10-01
Anticipated expiration: 2041-07-12
Also published as: CN113470861B

Abstract

An irradiation system. The irradiation system comprises: an irradiation device for forming an irradiation region for irradiating an object to be irradiated; the under-beam conveying system is used for conveying the irradiated objects to the irradiation area; the irradiation channel is used for placing the irradiation device and the under-beam transmission system; the shielding devices are arranged on the two sides and the top of the under-beam transmission system to shield the radiation rays generated by the irradiation device; wherein, the irradiation channel is a double-port character type labyrinth channel. The irradiation system is adopted to carry out irradiation sterilization on the irradiated objects, and the problem of chemical agent residue in the process of sterilization by chemical agents is solved.

Description

Irradiation system

Technical Field

The invention relates to the technical field of irradiation, in particular to an irradiation system.

Background

With the globalization of economic trade, a great deal of international activity makes the cross-border spread of pests a worldwide problem and is becoming more and more serious.

The method relates to the disinfection and sterilization problem of cold chain food, and the virus possibly carried by the food inner and outer packages must be thoroughly, effectively and safely killed, so that three aspects of control are required, namely complete and thorough sterilization is realized, and the virus can be efficiently killed particularly in a low-temperature environment; secondly, the sterilization mode is adopted, and the operation is simple; thirdly, the safety and the sanitation are realized, and the safety problem of cold chain food is very important. At present, aiming at the virus sterilization problem possibly existing on cold chain packaging boxes or frozen products, chemical preparations are often adopted in the prior art for sterilization.

However, sterilization using chemicals may have a problem of chemical residue, which may cause contamination of food.

Disclosure of Invention

The embodiment of the invention provides an irradiation system.

An irradiation system according to an embodiment of the present invention includes: an irradiation device for forming an irradiation region for irradiating an object to be irradiated; an under-beam transport system for transporting the irradiated object

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an irradiation system according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a shielding device of an irradiation system according to an embodiment of the present invention.

Figure 3 is a structural schematic diagram of an outer shield of an irradiation system according to an embodiment of the present invention.

FIG. 4 is a structural illustration of a middle layer shield of an irradiation system according to an embodiment of the present invention.

Figure 5 is a structural schematic diagram of an inner shield of an irradiation system according to an embodiment of the present invention. And

figure 6 is an axial view of an irradiation system according to an embodiment of the present invention.

Description of the main element symbols:

10. an irradiation system; 100. an irradiation device; 200. an under-beam transmission system; 300. an irradiation channel; 400. a shielding device;

410. an outer shield; 411. a first outer shield; 412. a second outer shield; 413. a third outer shield; 4131. a first outer layer module; 4132. a second outer layer module; 4133. a third outer layer module; 414. a fourth outer shield; 415. a fifth outer shield;

420. a middle layer shield; 421. a first middle shield; 4211. a first middle layer module; 4212. a second middle layer module; 422. a second middle layer shield; 4221. a third middle layer module; 4222. a fourth middle layer module; 423. a third middle layer shield; 4231. a fifth middle layer module; 4232. a sixth middle layer module; 424. a partition shield;

440. an inner shield; 441. a first inner layer module; 442. a second inner layer module; 443. And a third inner layer module.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other through another feature therebetween. Also, a first feature being "on," "above," and "over" a second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and diagonally under the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize other processes and/or uses of other materials.

To block the way in which the virus propagates along with the cold chain, the irradiation system 10 of the present invention can be used to perform irradiation sterilization on the cold chain packaging box. The irradiation system 10 performs irradiation sterilization on the irradiated object by using the characteristics of strong penetration of electron beam sterilization, uniform and thorough sterilization and high processing speed. In addition, the irradiation system 10 does not leave chemical residues when processing hermetically packaged items. The following examples illustrate the irradiation system 10 of the present invention by taking the irradiated object as a cold chain packaging box, but do not limit the scope of the present invention, and the irradiated object may be any shape of object. Such as a solid shape like a sphere, a hexahedron, a tetrahedron, etc.

Fig. 1 is a schematic structural diagram of an irradiation system 10 according to an embodiment of the present invention. Referring to FIG. 1, an irradiation system 10 includes an irradiation device 100, a sub-beam transport system 200, an irradiation tunnel 300, and a shielding device 400.

The irradiation device 100 is used to form an irradiation region where an object to be irradiated is irradiated. The irradiation device 100 may emit an electron beam, and sterilize the irradiated object by irradiation with the electron beam.

The under-beam transport system 200 is used to transport the irradiation object to the irradiation zone. For example, the under-beam transport system 200 may employ transport rollers, or transport belts for transporting the irradiation objects.

The irradiation tunnel 300 is used to place the irradiation device 100 and the under-beam delivery system 200.

Figure 6 is an axial view of an irradiation system 10 of an embodiment of the present invention. Referring to fig. 6, the shielding device 400 is disposed at both sides and the top of the under-beam transmission system 200 to shield the radiation rays generated by the irradiation device 100, and the irradiation passage 300 is a labyrinth passage shaped like a Chinese character 'hui'.

Fig. 2 is a schematic structural diagram of a shielding device 400 of the irradiation system 10 according to an embodiment of the present invention. Figure 3 is a schematic structural diagram of an outer shield 410 of an irradiation system 10 according to an embodiment of the present invention. Referring to fig. 2 and 3, the shielding device 400 includes an outer shield 410.

Referring to fig. 2 and 6, an outer shield 410 is mounted around and on top of the under-beam delivery system 200 to shield the radiation generated by the irradiation device 100.

Referring to fig. 3, the outer shield 410 includes a first outer shield 411, a second outer shield 412, a third outer shield 413, a fourth outer shield 414, and a fifth outer shield 415 connected in sequence to enclose a space in which the irradiation system 10 is disposed.

Referring to fig. 3, the first outer shield 411 is disposed perpendicular to the second outer shield 412. The second outer shield 412 is disposed perpendicular to the third outer shield 413. The third outer shield 413 is arranged perpendicular to the fourth outer shield 414. The fourth outer shield 414 is disposed perpendicular to the fifth outer shield 415.

Referring to fig. 3, the second outer shield 412 is on the same side of the third outer shield 413 as the fourth outer shield 414. The first outer shield 411 and the third outer shield 413 are located on the same side of the second outer shield 412. The third outer shield 413 is located on the same side of the fourth outer shield 414 as the fifth outer shield 415. The length of the second outer shield 412 is equal to the length of the fourth outer shield 414.

Referring to fig. 3, the third outer shield 413 includes a first outer module 4131, a second outer module 4132, and a third outer module 4133 connected in sequence. The first outer module 4131 is coupled to the second outer shield. The third outer module 4133 is coupled to the fourth outer shield 414.

In some embodiments, the outer shield 410 is in a "square" configuration, and the irradiation system 10 is positioned within the "square" configuration to shield the radiation generated by the irradiation device 100 to ensure the safety of the personnel.

FIG. 4 is a schematic structural diagram of a middle layer shield 420 of an irradiation system 10 according to an embodiment of the present invention. Referring to fig. 2 and 4, the shielding apparatus 400 further includes a middle layer shield 420.

The middle shield 420 is mounted inside the outer shield 410 to shield radiation generated by the irradiation device 100.

The middle shield 420 includes a first middle shield 421, a second middle shield 422, and a third middle shield 423, which are sequentially connected.

A blocking shield 424 is extended from the second middle shield 422 to the outer shield 410, and the blocking shield 424 is perpendicular to the second middle shield 422.

The first middle shield 421 includes a first middle module 4211 and a second middle module 4212 which are spliced with each other. The second middle shield 422 includes a third middle module 4221 and a fourth middle module 4222 that are spliced to each other. The third middle layer shield 423 includes a fifth middle layer module 4231 and a sixth middle layer module 4232 which are spliced to each other. The splicing direction of the first middle layer module 4211 and the second middle layer module 4212 is perpendicular to the splicing direction of the third middle layer module 4221 and the fourth middle layer module 4222, and the splicing direction of the first middle layer module 4211 and the second middle layer module 4212 is parallel to the splicing direction of the fifth middle layer module 4231 and the sixth middle layer module 4232.

Referring to fig. 4, the first middle module 4211 and the third middle module 4221 are equal in length.

In some embodiments, the middle layer shield 420 has a "U" shaped configuration.

Figure 5 is a schematic structural diagram of an inner shield 440 of an irradiation system 10 according to an embodiment of the present invention. Referring to fig. 2 and 5, the shielding apparatus 400 further includes an inner shield 440.

The inner shield 440 is mounted inside the middle shield 420 to shield radiation generated by the irradiation device 100.

The inner shield 440 includes a first inner module 441, a second inner module 442, and a third inner module 443 connected in sequence.

The first inner layer module 441 is provided with a first groove, the third inner layer module 443 is provided with a second groove, and two ends of the second inner layer module 442 are inserted into the first groove and the second groove, so that the first inner layer module 441, the second inner layer module 442 and the third inner layer module 443 are connected.

Referring to fig. 5, the first inner layer module 441 and the third inner layer module 443 are equal in length.

In some embodiments, the inner shield 440 is an "H" shaped structure.

Referring to fig. 1, the irradiation system 10 includes an inner shield 440, a middle shield 420, and an outer shield 410, and the three shields reflect rays for multiple times, so that multiple reflection attenuation of rays can be realized, the radiation dose in the irradiation system 10 can be reduced, and the radiation safety of workers can be ensured.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An irradiation system, comprising:

an irradiation device (100) for forming an irradiation region for irradiating an object to be irradiated;

a sub-beam transport system (200) for transporting the irradiation object to the irradiation zone;

an irradiation tunnel (300) for placing the irradiation device (100) and the under-beam transport system (200);

the shielding devices (400) are arranged at the two sides and the top of the under-beam transmission system (200) and are used for shielding the radiation rays generated by the irradiation device (100);

wherein the irradiation channel (300) is a labyrinth channel shaped like a Chinese character 'hui'.

2. The irradiation system according to claim 1, wherein the shielding device (400) comprises:

an outer shield (410), the outer shield (410) being mounted around and on top of the under-beam delivery system (200) to shield radiation generated by the irradiation device (100).

3. The irradiation system of claim 2,

the outer layer shielding body (410) comprises a first outer layer shielding body (411), a second outer layer shielding body (412), a third outer layer shielding body (413), a fourth outer layer shielding body (414) and a fifth outer layer shielding body (415) which are sequentially connected, so that a space for placing the irradiation system is defined.

4. The irradiation system of claim 3,

the first outer shield (411) is arranged perpendicular to the second outer shield (412);

the second outer shield (412) is arranged perpendicular to the third outer shield (413);

the third outer shield (413) is arranged perpendicular to the fourth outer shield (414);

the fourth outer shield (414) is disposed perpendicular to the fifth outer shield (415).

5. The irradiation system of claim 4,

the second outer shield (412) is on the same side of the third outer shield (413) as the fourth outer shield (414);

the first outer shield (411) and the third outer shield (413) are located on the same side of the second outer shield (412);

the third outer shield (413) is located on the same side of the fourth outer shield (414) as the fifth outer shield (415).

6. The irradiation system of claim 5, wherein the length of the second outer shield (412) is equal to the length of the fourth outer shield (414).

7. The irradiation system of claim 5,

the third outer shield (413) comprises a first outer module (4131), a second outer module (4132) and a third outer module (4133) which are connected in sequence;

wherein the first outer layer module (4131) is connected to the second outer layer shield;

the third outer layer module (4133) is connected with the fourth outer layer shield (414).

8. The irradiation system of claim 2, wherein the outer shield (410) is of a square configuration.

9. The irradiation system of claim 2, wherein the shielding device (400) further comprises:

a middle layer shield (420), the middle layer shield (420) being mounted inside the outer layer shield (410) to shield radiation generated by the irradiation device (100).

10. The irradiation system of claim 9, wherein the middle layer shield (420) comprises a first middle layer shield (421), a second middle layer shield (422) and a third middle layer shield (423) connected in sequence.

11. The irradiation system of claim 10,

a partition shielding body (424) extends from the second middle layer shielding body (422) to the outer layer shielding body (410), and the partition shielding body (424) is perpendicular to the second middle layer shielding body (422).

12. The irradiation system of claim 10,

the first middle layer shield (421) comprises a first middle layer module (4211) and a second middle layer module (4212) which are spliced with each other;

the second middle layer shield (422) comprises a third middle layer module (4221) and a fourth middle layer module (4222) which are spliced with each other;

the third middle layer shield (423) comprises a fifth middle layer module (4231) and a sixth middle layer module (4232) which are spliced with each other;

wherein the splicing direction of the first middle layer module (4211) and the second middle layer module (4212) is perpendicular to the splicing direction of the third middle layer module (4221) and the fourth middle layer module (4222);

the splicing direction of the first middle layer module (4211) and the second middle layer module (4212) is parallel to the splicing direction of the fifth middle layer module (4231) and the sixth middle layer module (4232).

13. The irradiation system of claim 12, wherein the first middle layer module (4211) and the third middle layer module (4221) are equal in length.

14. The irradiation system of claim 9, wherein the middle layer shield (420) is of a "U" configuration.

15. The irradiation system of claim 9, wherein the shielding device (400) further comprises:

an inner shield (440), the inner shield (440) being mounted inside the middle shield (420) to shield radiation generated by the irradiation device (100).

16. The irradiation system according to claim 15, wherein the inner shield (440) comprises a first inner module (441), a second inner module (442) and a third inner module (443) connected in series.

17. The irradiation system according to claim 16, wherein a first groove is provided on the first inner layer module (441), a second groove is provided on the third inner layer module (443), and both ends of the second inner layer module (442) are inserted into the first groove and the second groove to realize the connection of the first inner layer module (441), the second inner layer module (442) and the third inner layer module (443).

18. The irradiation system of claim 17, wherein the first inner layer module (441) and the third inner layer module (443) are equal in length.

19. The irradiation system of claim 15, wherein the inner shield (440) is of an "H" configuration.