CN214671858U - Nuclear power station test neutron source safety protection placing box - Google Patents

Abstract

The utility model relates to a box is placed in experimental neutron source safety protection of nuclear power station, include: a housing; the drawer box is arranged in the shell and is in sliding connection with the inner wall of the shell; the locking piece and the inner box are arranged in the drawer box, and the neutron source is placed in the inner box; the limiting piece is arranged in the shell, and the inner box is abutted to the limiting piece after the drawer box is buckled on the shell. The above-mentioned scheme that this application provided, through placing the neutron source in interior box, then with drawer box and lock on the casing, it locks casing and drawer box each other tightly to recycle the retaining member, wholly place the box and avoided placing the neutron source in interior box collision through the dual function of casing and drawer box mutually supporting and interior box, the protection is effectual, the setting of locating part in the casing simultaneously, can further stabilize interior box in the drawer box, and then guaranteed the security of placing the neutron source on the box transport and experiment including.

Description

Nuclear power station test neutron source safety protection placing box

Technical Field

The utility model relates to a nuclear power station neutron source test technical field especially relates to a box is placed in experimental neutron source safety protection of nuclear power station.

Background

During debugging of the nuclear power station, the nuclear instrument needs to use a neutron source to perform qualitative test and verification on the detector, and the test has high radiation and limited test space. When a practitioner performs the test, the operation is inconvenient due to environmental factors such as limited space, and the test efficiency is low. In addition, the high radiation of this test causes an unpredictable injury to the health of the practitioner over the long term.

At present, three main problems exist in the traditional neutron source placement device: the neutron source placement process is complicated, the steps are numerous, the assembly and placement of the neutron source can be completed often in a long time, the radiation time to a human body in the process is prolonged, and the damage is large; the neutron source placing box has a simple and crude structure, has no protection measures on the neutron source, is easy to damage the surface of the neutron source and increases the radiation degree to a human body; the traditional neutron source placing box structure does not support the expansion assembly to novel test equipment, such as an intelligent test robot and the like, and the intelligent upgrading process of the test process cannot be met.

SUMMERY OF THE UTILITY MODEL

Therefore, the neutron source safety protection placing box for the nuclear power station test is needed to be provided for solving the problems that the existing neutron source placing box is simple in structure and has no protection measures for a neutron source.

The utility model provides a box is placed in experimental neutron source safety protection of nuclear power station, include:

a housing;

the drawer box is arranged in the shell and is connected with the inner wall of the shell in a sliding manner;

the shell and the drawer box are both provided with the locking pieces, and the locking pieces on the shell are matched with the locking pieces on the drawer box;

the inner box is arranged in the drawer box, and the neutron source is placed in the inner box;

the locating part, the locating part sets up in the casing, work as the drawer box lock is in back on the casing, interior box with the locating part butt.

Above-mentioned box is placed in experimental neutron source safety protection of nuclear power station, through placing the neutron source in interior box, then with drawer box and lock on the casing, it locks casing and drawer box each other tightly to recycle the retaining member, wholly place the box and avoided placing the neutron source in interior box collision through the dual function of casing and drawer box mutually supporting and interior box, the protection is effectual, the setting of locating part in the casing simultaneously, can further stabilize interior box in the drawer box, and then guaranteed the security of placing neutron source transportation on the box including and the experiment.

In one embodiment, the inner box comprises a fixed base, a lower cover and an upper cover;

the fixed base is fixed on the bottom surface inside the drawer box through bolts, the lower cover is fixed on the fixed base, a neutron source placing groove is formed in the center of the lower cover, and the upper cover is buckled on the lower cover.

In one embodiment, a flexible layer is disposed on each of the lower cover and the upper cover.

In one embodiment, a protrusion is arranged on one side of the lower cover facing the upper cover, and a clamping groove is arranged on one side of the upper cover facing the lower cover and matched with the protrusion.

In one embodiment, the neutron source and the neutron source placement groove are in clearance fit.

In one embodiment, the lower cover and the upper cover are both of a hemispherical structure.

In one embodiment, the stopper includes a slanted top disposed above the interior of the housing, and a distance from an end of the slanted top facing the drawer box to the upper surface of the interior of the housing is smaller than a distance from an end of the slanted top away from the drawer box to the upper surface of the interior of the housing;

when the drawer box is buckled on the shell, the upper cover is abutted against one side of the inclined top facing to the bottom surface in the shell.

In one embodiment, the locking member includes a first snap and a second snap that are engaged with each other, the first snap being disposed at an outer side of the housing, and the second snap being disposed at an outer side of the drawer box.

In one embodiment, a radiation-proof layer is arranged on the shell.

In one embodiment, the adapter is arranged on the surface of the shell.

Drawings

Fig. 1 is a schematic structural diagram of a neutron source safety protection placing box for nuclear power plant test provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a general schematic view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the inner case of FIG. 1;

FIG. 6 is an exploded view of FIG. 5;

fig. 7 is a cross-sectional view of fig. 5.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 in combination with fig. 2, in an embodiment of the present invention, a neutron source safety protection placing box for nuclear power plant test is provided, including: the drawer type refrigerator comprises a shell 10, a drawer box 20, a locking member, an inner box 30 and a limiting member, wherein the drawer box 20 is arranged in the shell 10, a sliding groove 102 is formed in the inner wall of the shell 10, a sliding rail is arranged on the drawer box 20, the sliding rail on the drawer box 20 is in sliding connection with the sliding groove 102 in the inner wall of the shell 10, a limiting locking member is arranged between the drawer box 20 and the shell 10 and used for locking the drawer box 20 on the shell 10 and preventing the drawer box 20 from falling off the shell 10, and the limiting locking member between the drawer box 20 and the shell 10 is the prior art, so that the description is not repeated;

meanwhile, locking pieces are arranged on the shell 10 and the drawer box 20, the locking pieces on the shell 10 are matched with the locking pieces on the drawer box 20, the inner box 30 is arranged in the drawer box 20, and the neutron source 01 is placed in the inner box 30; the limiting member is disposed in the casing 10, and when the drawer box 20 is fastened to the casing 10, the inner box 30 abuts against the limiting member.

Adopt above-mentioned technical scheme, through placing the neutron source in interior box, then with drawer box and lock on the casing, recycle the retaining member and with casing and drawer box locking each other, wholly place the box and avoided placing the neutron source in interior box collision through the dual function of casing and drawer box mutually supporting and interior box, the protection is effectual, the setting of locating part in the casing simultaneously, can further stabilize interior box in the drawer box, and then guaranteed the security of placing the neutron source on the box including transporting and experimenting.

In some embodiments, as shown in fig. 6 in combination with fig. 5 and 7, the inner case 30 of the present application includes a fixing base 301, a lower cover 302, and an upper cover 303; the fixed base 301 is fixed on the bottom surface inside the drawer box 20 by bolts, the lower cover 302 is fixed on the fixed base 301, the center of the lower cover 302 is provided with a neutron source placing groove 3021, and the upper cover 303 is buckled on the lower cover 302.

Specifically, the fixing base 301 is made of an aluminum material and is used for supporting the lower cover 302, the fixing base 301 is fixed on the bottom surface inside the drawer box 20 by bolts, the lower cover 302 is also fixed on the fixing base 301 by bolts, when the neutron source 01 is placed on the neutron source placing groove 3021, the upper cover 303 is buckled on the lower cover 302, at this time, as shown in fig. 7, a part of the neutron source 01 is located in the neutron source placing groove 3021, and another part is located in a cavity formed by the upper cover 303 and the lower cover 302.

Further, as shown in fig. 6, a protrusion 3022 is provided on a side of the lower cover 302 facing the upper cover 303, a locking groove is provided on a side of the upper cover 303 facing the lower cover 302, and when the upper cover 303 is locked to the lower cover 302, the protrusion on the lower cover 302 is located in the locking groove on the upper cover 303.

In some embodiments, in order to avoid the damage of the neutron source 01 caused by the hard surface of the inner box 30, the lower cover 302 and the upper cover 303 are provided with flexible layers.

Specifically, the lower cover 302 and the upper cover 303 are both made of PE1000, which does not affect the radiation performance of the neutron source nor damage the neutron source.

It should be noted that the structure in which the lower cover and the upper cover are both made of PE1000 in the embodiment of the present application is only an example, and in other alternatives, other structures may also be adopted, for example, the lower cover and the upper cover are both made of PE63 material. The present application does not specifically limit the specific material structures of the lower cover and the upper cover, as long as the above material structures can achieve the object of the present application.

In some embodiments, according to the cylindrical structural feature of the neutron source 01, in order to reduce the vibration amplitude of the neutron source in the neutron source placing groove 3021, as shown in fig. 6, the neutron source placing groove 3021 in this application is also of a cylindrical structure, and in order to adapt to the size error of the neutron source, the inner diameter of the neutron source placing groove 3021 is slightly larger than the nominal diameter of the neutron source by 2-3 mm.

In some embodiments, in order to keep the neutron source 01 always at the exact center of the inner box 30, and ensure the uniformity of the radiation of the neutron source, as shown in fig. 6, the lower cover 302 and the upper cover 303 in this application are both of a hemispherical structure, and meanwhile, the neutron source placement groove 3021 is arranged at the center of the lower cover 302. Thus, after the neutron source 01 is placed in the neutron source placing groove 3021, it can be ensured that the neutron source 01 is always in the right center of the inner box 30.

In some embodiments, as shown in fig. 2 in combination with fig. 4, the limiting member in the present application includes a slanted top 103, the slanted top 103 is disposed on the inside of the casing 10, and a distance from an end of the slanted top 103 facing the drawer box 20 to the inside of the casing 10 is smaller than a distance from an end of the slanted top 103 away from the drawer box 20 to the inside of the casing 10; when the drawer box 20 is engaged with the casing 10, the upper cover 303 abuts on the side of the slanted top 103 facing the inner bottom surface of the casing 10.

Specifically, because the upper cover 303 in this application is buckled on the lower cover 302, when the nuclear power plant travels on a bumpy road surface, the upper cover 303 moves relative to the lower cover 302, the upper cover 303 is designed to be a semispherical structure in this application, after the drawer box 20 is buckled on the casing 10, the upper cover 303 abuts against one side of the slanted ejecting 103 facing the inner bottom surface of the casing 10, at this time, the slanted ejecting 103 can apply downward pressing force to the upper cover 303, so that the upper cover 303 is stably buckled on the lower cover 302, and the neutron source 01 in the lower cover 302 is prevented from falling off from the lower cover 302.

In some embodiments, as shown in fig. 1 in combination with fig. 3, the locking member of the present application includes a first buckle 101 and a second buckle 201 which are engaged with each other, the first buckle 101 is disposed at the outer side of the housing 10, and the second buckle 201 is disposed at the outer side of the drawer box 20. The hasp structure is designed, so that the safety of the locking state of the drawer box 20 can be guaranteed, the hasp locking mode is simpler and more convenient, and the operation speed can be greatly improved.

In some embodiments, the radiation protection layer is disposed on the casing 10, and the casing 10 is made of aluminum material and has a thickness of 3-5mm, so that the inner box can be well protected, the shielding of the neutron source can be reduced, and the experimental result can be prevented from being affected.

In some embodiments, as shown in fig. 1 or fig. 2, the neutron source safety protection placing box for nuclear power plant test in the present application further includes an adapter 40, and the adapter 40 is disposed on a surface of the housing 10. The adapter is mainly used for realizing quick assembly with automatic experimental equipment such as a robot and the tail end of a mechanical arm, assembling a placing box carrying a neutron source to an intelligent test robot, and automatically testing the intelligent test robot.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a box is placed in experimental neutron source safety protection of nuclear power station which characterized in that includes:

a housing (10);

the drawer box (20) is arranged in the shell (10), and the drawer box (20) is connected with the inner wall of the shell (10) in a sliding mode;

the locking pieces are arranged on the shell (10) and the drawer box (20), and the locking pieces on the shell (10) are matched with the locking pieces on the drawer box (20);

an inner box (30), the inner box (30) being disposed within the drawer box (20), a neutron source (01) being placed in the inner box (30);

the limiting part is arranged in the shell (10), and when the drawer box (20) is buckled on the shell (10), the inner box (30) is abutted to the limiting part.

2. The nuclear power plant experimental neutron source safety protection placement box according to claim 1, characterized in that the inner box (30) comprises a fixed base (301), a lower cover (302) and an upper cover (303);

the fixed base (301) is fixed on the bottom surface inside the drawer box (20) through bolts, the lower cover (302) is fixed on the fixed base (301), a neutron source placing groove (3021) is arranged in the center of the lower cover (302), and the upper cover (303) is buckled on the lower cover (302).

3. The nuclear power plant experimental neutron source safety protection placement box according to claim 2, characterized in that a flexible layer is arranged on each of the lower cover (302) and the upper cover (303).

4. The nuclear power plant experiment neutron source safety protection placing box according to claim 2, characterized in that a protrusion (3022) is arranged on one side of the lower cover (302) facing the upper cover (303), and a clamping groove is arranged on one side of the upper cover (303) facing the lower cover (302), and the clamping groove is matched with the protrusion (3022).

5. The nuclear power plant experiment neutron source safety protection placing box according to claim 2, characterized in that the neutron source (01) and the neutron source placing groove (3021) are in clearance fit.

6. The nuclear power plant experimental neutron source safety protection placing box according to any one of claims 2 to 5, characterized in that the lower cover (302) and the upper cover (303) are both of a hemispherical structure.

7. The nuclear power plant experimental neutron source safety protection placing box according to claim 6, characterized in that the limiting member comprises a slanted top (103), the slanted top (103) is arranged on the inner part of the shell (10), the distance from one end of the slanted top (103) facing the drawer box (20) to the inner part of the shell (10) is smaller than the distance from one end of the slanted top (103) far away from the drawer box (20) to the inner part of the shell (10);

when the drawer box (20) is buckled on the shell (10), the upper cover (303) is abutted against one side of the inclined top (103) facing to the inner bottom surface of the shell (10).

8. The nuclear power plant experimental neutron source safety protection placement box according to claim 1, characterized in that the locking member comprises a first snap (101) and a second snap (201) which are mutually matched, the first snap (101) is arranged on the outer side of the housing (10), and the second snap (201) is arranged on the outer side of the drawer box (20).

9. The nuclear power plant experimental neutron source safety protection placing box according to claim 1, characterized in that a radiation protection layer is arranged on the shell (10).

10. The nuclear power plant experimental neutron source safety protection placement box according to claim 1, further comprising an adapter (40), wherein the adapter (40) is arranged on a surface of the housing (10).

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