Boric acid bag cutting device for nuclear power plant

Abstract

The utility model discloses a device for cutting boric acid bags in a nuclear power plant, comprising a handle and a blade, wherein the handle has a storage groove, a second surface of the handle is provided with a storage port connected to the storage groove, a first end of the handle is provided with a mounting groove, the mounting groove penetrates the first surface and the second surface, and the mounting groove is connected to the storage groove; a limiting ring is provided at the second end of the handle, and the outer diameter of the limiting ring is greater than or equal to 50 mm; the blade has a first end and a second end in a length direction, the blade has a blade back and a blade portion formed on the blade back, the first end of the blade forms a blade tip, the second end of the blade can be rotatably installed in the mounting groove, and the blade can be stored in the storage groove; the second end of the blade is provided with a pressing portion that can be located in the mounting groove when the device is in an unfolded state. The device can be held by nuclear power plant staff to cut boric acid bags, which is more time-saving and labor-saving than manually tearing open the boric acid bags. And it has a storage state, and when stored in a management cabinet, it occupies less space.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a boric acid bag cutting device for a nuclear power plant. Background Art

[0002] The reactor boron and water replenishment system (REA) of a nuclear power plant is mainly used as a support system for the chemical and volume control system (RCV). During operation, the reactor boron and water replenishment system of a nuclear power plant needs to be replenished with boric acid solution in a timely manner. For example, boric acid powder needs to be poured into a boron making tank. The boric acid powder is usually packaged in a boric acid bag (such as a thick plastic bag). It is time-consuming and laborious to manually open the boric acid bag. After opening the boric acid bag, the boric acid needs to be poured into the boron making tank feed hopper. There is a protective grille on the boron making tank feed hopper. If foreign objects are accidentally dropped when pouring boric acid powder into the boron making tank feed hopper, it may cause contamination of the boric acid solution. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for cutting boric acid bags in a nuclear power plant.

[0004] The utility model solves the technical problem by adopting the following technical solution: constructing a device for cutting boric acid bags in a nuclear power plant, comprising a handle and a blade, wherein the handle has a storage groove, the handle has a first surface and a second surface opposite to each other, the second surface is provided with a storage port connected with the storage groove, the handle has a first end and a second end in a length direction, the first end of the handle is provided with a mounting groove, the mounting groove passes through the first surface and the second surface, and the mounting groove is connected with the storage groove; the second end of the handle is also provided with a limiting ring, and the outer diameter of the limiting ring is greater than or equal to 50 mm;

[0005] The blade has a first end and a second end in a length direction, the blade has a blade back and a blade edge formed on the blade back, the first end of the blade forms a blade tip, the second end of the blade can be rotatably mounted in the mounting groove, and the blade can be stored in the storage groove;

[0006] The second end of the blade is provided with a pressing portion which can be located in the mounting groove when the nuclear power plant cutting boric acid bag device is in an unfolded state.

[0007] In some embodiments, a first protrusion is disposed on the upper side of the second end of the blade back portion.

[0008] In some embodiments, a first concave-convex structure is provided on a side of the first convex portion facing the blade tip.

[0009] In some embodiments, a second protrusion is disposed on the underside of the first end of the blade.

[0010] In some embodiments, a second concave-convex structure is provided on a side of the second convex portion away from the blade tip.

[0011] In some embodiments, the second end of the blade is rotatably mounted in the mounting groove via a rotating shaft.

[0012] In some embodiments, the opposite walls of the mounting groove are respectively provided with arc-shaped grooves;

[0013] The blade is provided with a guide column, and both ends of the guide column are respectively located in the arc groove.

[0014] In some embodiments, the width of the blade back is similar to the width of the receiving slot.

[0015] In some embodiments, at least one side of the handle in the width direction is provided with a clip.

[0016] In some embodiments, at least one side surface of the handle in the width direction is further provided with a label slot for attaching a label.

[0017] The implementation of the utility model has the following beneficial effects: the nuclear power plant boric acid bag cutting device can be held by nuclear power plant workers to cut boric acid bags, which is more time-saving and labor-saving than manually tearing open boric acid bags. In addition, the nuclear power plant boric acid bag cutting device has a storage state, and when stored in a management cabinet, it occupies less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is one of the structural schematic diagrams of a device for cutting boric acid bags in a nuclear power plant in some embodiments of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a device for cutting boric acid bags in a nuclear power plant in some embodiments of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a device for cutting boric acid bags in a nuclear power plant in some embodiments of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a device for cutting boric acid bags in a nuclear power plant in some embodiments of the utility model;

[0023] Figure 5It is a schematic diagram of the structure of the protective grille of the boron tank feed hopper. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0025] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0027] See also Figures 1 to 4 The utility model shows a device for cutting boric acid bags in a nuclear power plant, which can be held by nuclear power plant workers to cut boric acid bags, which saves time and effort compared to manually tearing open boric acid bags.

[0028] The nuclear power plant boric acid bag cutting device includes a handle 10 and a blade 20. The handle 10 is generally a long strip plate structure. The handle 10 has a storage groove A. The storage groove A extends along the length direction of the handle 10 and its length is slightly larger than the length of the blade 20.

[0029] The handle 10 has a first surface 11 and a second surface 12 opposite to each other, the second surface 12 is provided with a receiving port connected to the receiving groove A, and the receiving port can be regarded as a part of the receiving groove A. The handle 10 has a first end 10a and a second end 10b in the length direction, the first end 10a of the handle 10 is provided with a mounting groove B, the mounting groove B passes through the first surface 11 and the second surface 12, and the mounting groove B is connected to the receiving groove A; the second end 10b of the handle 10 is also provided with a limiting ring 30, such as the second end 10b of the handle 10 is provided with a mounting hole for the limiting ring 30 to pass through, the outer diameter of the limiting ring 30 is greater than or equal to 50mm, combined with Figure 5 As shown, the diagonal size of each grid 100 (roughly square in shape) of the protective grille of the boron tank feed hopper is approximately 44.67 mm. The limiting ring 30 is provided. Even if the boric acid bag cutting device of the nuclear power plant accidentally falls, it will not fall into the boron tank feed hopper, that is, it will not enter the boron tank and pollute the boric acid solution. The limiting ring 30 is roughly annular, and its outer diameter can be 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm, 75mm, 76mm, 77mm, 78mm, 79mm, 80mm. Of course, the limiting ring 30 can also be of other sizes, which can be selected and set according to actual needs, and are not specifically limited here. In addition, the limiting ring 30 can be made of stainless steel material, such as stainless steel 316L, to increase its service life.

[0030] The blade 20 has a first end 20a and a second end 20b in the length direction. The blade 20 has a blade back 21 and a blade edge 22 formed on the blade back 21. The first end 20a of the blade 20 forms a blade tip 23. The second end 20b of the blade 20 can be rotatably installed in the installation groove B, and the blade 20 can be stored in the storage groove A. The second end 10b of the blade 20 is provided with a pressing portion 24 that can be located in the installation groove B when the nuclear power plant cutting boric acid bag device is in an expanded state. When the nuclear power plant cutting boric acid bag device is in an expanded state (such as Figure 1 As shown), the pressing portion 24 is located in the mounting groove B, and the upper surface of the pressing portion 24 can be flush with the first surface 11. The thumb of the worker can be pressed on the pressing portion 24 to cut the boric acid bag.

[0031] In addition, if Figure 3 As shown, when the nuclear power plant cutting boric acid bag device is in the storage state (such as Figure 3 As shown), in addition, the blade 20 can be stored in the storage slot A. At this time, the pressing portion 24 can protrude from the handle 10, and the staff can operate the pressing portion 24 to rotate the blade 20 out of the storage slot A, which is more convenient to operate.

[0032] In some embodiments, the length of the handle 10 can be 8cm-18cm, for example, 8cm, 9cm, 10cm, 11cm, 12cm, 13cm, 14cm, 15cm, 16cm, 17cm, 18cm. The length can be selected and set according to actual needs. Of course, since the palm sizes of nuclear power plant workers are not consistent, handles 10 of different lengths can be prepared for the workers to choose to hold. In some embodiments, the handle 10 can be formed by two long strips of plates fixed together by bolts, or the handle 10 can also be integrated on a mold. The handle 10 can be made of stainless steel, such as stainless steel 316L, to adapt to chemical working environments.

[0033] In some embodiments, the length of the blade 20 can be 6 cm-16 cm, for example, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, or 16 cm.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the blade portion 22 gradually decreases in size from close to the blade back 21 to the side away from the blade back 21, so that the edge size of the blade portion 22 is approximately 0.1mm-0.2mm, making the blade portion 22 sharper and the incision more neat when cutting the boric acid bag.

[0035] like Figure 1 As shown, in some embodiments, a first convex portion 25 is provided on the upper side of the second end 10b of the blade back 21, and the first convex portion 25 can be a curved surface structure on the side facing the blade tip 23, and the center of the circle is roughly on the side of the first convex portion 25 away from the blade tip 23. The first convex portion 25 is provided with a first concave-convex structure 251 on the side facing the blade tip 23 to improve the anti-slip effect. When the staff operates the blade 20, for example, the first convex portion 25 can be operated to pull the blade 20 out of the storage slot A, or the first convex portion 25 can be operated (for example, pressed) to retract the blade 20 into the storage slot A.

[0036] like Figure 2As shown, in some embodiments, a second protrusion 26 is provided at the lower side of the first end 10a of the blade 20, and the second protrusion 26 can be arranged opposite to the first protrusion 25. When the blade 20 is in the unfolded state, the hand of the staff can press the first protrusion 25 and the second protrusion 26 at the same time, and the boric acid bag cutting operation is more stable.

[0037] Furthermore, a second concave-convex structure 261 is provided on a side of the second convex portion 26 away from the blade tip 23 to improve the anti-slip effect.

[0038] like Figure 4 As shown, in some embodiments, the second end 20b of the blade 20 is rotatably mounted in the mounting groove B via the rotating shaft 40. For example, the second end 20b of the blade 20 may be provided with a through hole for the rotating shaft 40 to pass through. In addition, the contact portion between the rotating shaft 40 and the blade 20 may also be provided with a bearing structure, etc., which is not specifically limited here. Further, the opposite wall surfaces of the mounting groove B are respectively provided with arc grooves 13 (structured as Figure 4 As shown in the figure, the blade 20 is provided with a guide column 27, and both ends of the guide column 27 are respectively located in the arc groove 13. When the blade 20 rotates around the rotating shaft 40, the guide column 27 can rotate along the arc groove 13 to improve the guiding stability.

[0039] like Figure 3 As shown, in some embodiments, the width of the blade back 21 is similar to the width of the storage groove A, for example, the width of the blade back 21 is equal to or slightly larger than the width of the storage groove A, and the two can be interference fit, so that the blade 20 is more stable when stored.

[0040] In addition, the width of the blade back 21 is similar to the width of the installation slot B. For example, the width of the blade back 21 is equal to or slightly larger than the width of the installation slot B. When the nuclear power plant cutting boric acid bag device is in the unfolded state (such as Figure 1 ), the blade back 21 can be interference fit with the mounting groove B, so that the blade 20 is more stable during operation. Of course, a conventional knife stop column or a limiting structure can also be provided in the handle 10, which is not specifically limited here.

[0041] like Figure 2 As shown, at least one side surface of the handle 10 in the width direction is provided with a clip 50 so as to be clamped on the pocket or belt of the worker to prevent it from being left on the workplace.

[0042] like Figure 1 or Figure 3As shown, at least one side surface in the width direction of the handle 10 is also provided with a label slot 14 for attaching a label. The label slot 14 can be used to attach a label. The label can record the number, purpose and ownership of the nuclear power plant's boric acid bag cutting device. The label can be an RDID label, which can be stored in conjunction with the Hualong One smart management cabinet. When accessing, the Hualong One smart management cabinet can scan the RDID label to record information, thereby improving the safety of nuclear power plant item management.

[0043] It can be understood that the device for cutting boric acid bags in a nuclear power plant can be held by nuclear power plant staff to cut boric acid bags, which is more time-saving and labor-saving than manually tearing open boric acid bags. In addition, the device for cutting boric acid bags in a nuclear power plant has a storage state, and when stored in a management cabinet, it takes up less space. In addition, the handle of the device for cutting boric acid bags in a nuclear power plant is provided with a clip 50, so that it can be clamped on the pocket or belt of the staff to avoid being left on the workplace.

[0044] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A device for cutting boric acid bags in a nuclear power plant, characterized in that: The invention comprises a handle (10) and a blade (20), wherein the handle (10) has a storage groove (A), the handle (10) has a first surface (11) and a second surface (12) opposite to each other, the second surface (12) is provided with a storage opening connected to the storage groove (A), the handle (10) has a first end and a second end in a length direction, the first end of the handle (10) is provided with a mounting groove (B), the mounting groove (B) passes through the first surface (11) and the second surface (12), and the mounting groove (B) is connected to the storage groove (A); the second end of the handle (10) is also provided with a limiting ring (30), and the outer diameter of the limiting ring (30) is greater than or equal to 50 mm; The blade (20) has a first end and a second end in the length direction, the blade (20) has a blade back (21) and a blade edge (22) formed on the blade back (21), the first end of the blade (20) forms a blade tip (23), the second end of the blade (20) can be rotatably mounted in the mounting groove (B), and the blade (20) can be stored in the storage groove (A); The second end of the blade (20) is provided with a pressing portion (24) which can be located in the mounting groove (B) when the nuclear power plant boric acid bag cutting device is in an unfolded state.

2. The device for cutting boric acid bags in a nuclear power plant according to claim 1, characterized in that: A first convex portion (25) is provided on the upper side of the second end of the blade back portion (21).

3. The device for cutting boric acid bags in a nuclear power plant according to claim 2, characterized in that: A first concave-convex structure (251) is provided on the side of the first convex portion (25) facing the blade tip (23).

4. The device for cutting boric acid bags in a nuclear power plant according to claim 1, characterized in that: A second convex portion (26) is provided on the lower side of the first end of the blade (20).

5. The device for cutting boric acid bags in a nuclear power plant according to claim 4, characterized in that: A second concave-convex structure (261) is provided on the side of the second convex portion (26) facing away from the blade tip (23).

6. The device for cutting boric acid bags in a nuclear power plant according to claim 1, characterized in that: The second end of the blade (20) is rotatably mounted in the mounting groove (B) via a rotating shaft (40).

7. The device for cutting boric acid bags in a nuclear power plant according to claim 1, characterized in that: The opposite wall surfaces of the installation groove (B) are respectively provided with arc grooves (13); The blade (20) is provided with a guide column (27), and both ends of the guide column (27) are respectively located in the arc-shaped groove (13).

8. The device for cutting boric acid bags in a nuclear power plant according to claim 1, characterized in that: The width of the blade back (21) is similar to the width of the storage groove (A).

9. The device for cutting boric acid bags in a nuclear power plant according to any one of claims 1 to 8, characterized in that: At least one side surface of the handle (10) in the width direction is provided with a buckle clip (50).

10. The device for cutting boric acid bags in a nuclear power plant according to any one of claims 1 to 8, characterized in that: At least one side surface in the width direction of the handle (10) is also provided with a label slot (14) for attaching a label.

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