CN101618731A - Special transportation device of nuclear power station for narrow space - Google Patents

Abstract

The invention relates to a special transportation equipment for nuclear power plants used in narrow spaces, which includes a mounting plate and a chassis, the bottom of the mounting plate is rotatably connected to the chassis, and a positioning telescopic arm is arranged between the mounting plate and the chassis; The bottom and/or two sides are provided with baffles. By designing the mounting plate and the chassis to be rotatably connected, the inclination angle of the transport equipment can be adjusted, so that the cabinet can be placed on the mounting plate obliquely, which can facilitate transportation and prevent the cabinet from sliding down and sideways during transportation. .

Description

Special transport equipment for nuclear power plants for tight spaces

technical field

The invention relates to the high-tech transformation of traditional mechanical equipment used as peripheral devices in nuclear power plants so that the nuclear power plants can operate more efficiently, and more specifically relates to a special transport equipment for nuclear power plants used in narrow spaces.

Background technique

During nuclear power plant construction and retrofit work, the need to transport control cabinets within the plant is often encountered. The usual method is to transport the cabinet upright or horizontally, but other equipment on site has been installed, and the space on the transportation path is relatively narrow. If the space height is insufficient, the cabinet cannot pass through in an upright state; if the width of the turning is not enough, the cabinet should be placed horizontally. Unable to turn; if the upright/horizontal state of the cabinet cannot be easily changed during transportation, it may accidentally touch other equipment or even cause casualties.

In order to solve the above problems, there is an urgent need for a special transportation equipment for nuclear power plants used in narrow spaces. After professional retrieval, two technical solutions were obtained, namely US6224071B1 and CN2130736Y. Among them, the first technical solution discloses a transportation equipment, which includes Wheels, mounting brackets and chassis frames, the bottom of the mounting brackets are connected to the chassis frame, supporting vertical components between the mounting brackets and the chassis frame, but in this technical solution, the connection between the bottom of the mounting brackets and the chassis frame cannot Carry out relative rotation, and the vertical part that plays a supporting role also can not stretch according to the required length. In addition, the second technical solution also discloses a transportation device, which includes a vehicle frame, a fixed plate, and a supporting wheel frame, and movable pins for telescopic movement are arranged at both ends of the armrest rod body to support the vehicle frame, but the supporting wheel frame passes The pin performs length adjustment and cannot stretch itself.

Contents of the invention

The technical problem to be solved by the present invention is to provide a control cabinet for narrow space in view of the defects of the prior art that the upright or horizontal state of the cabinet cannot be conveniently changed, resulting in collisions with other equipment and casualties. special transport equipment for nuclear power plants.

The technical solution adopted by the present invention to solve the technical problem is: to construct a special transportation equipment for nuclear power plants used in narrow spaces, including a mounting plate and a chassis, the bottom of the mounting plate is rotatably connected to the chassis, and A positioning telescopic arm for real-time adjustment is arranged between the chassis and the chassis.

In the special transport equipment for nuclear power plants used in narrow spaces according to the present invention, baffle plates are arranged on the bottom and/or both sides of the installation plate.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the bottom of the chassis is provided with feet.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, rollers are arranged on the bottom of the chassis.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, a push rod is also arranged on the chassis.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the chassis is a rectangular frame body welded by angle steel.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the installation plate is a rectangular frame body welded by angle steel.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the two ends of the positioning telescopic arm are respectively connected to the mounting plate and the chassis through hinges.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the bottom of the installation plate is rotatably connected to the chassis through a hinge.

In the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention, the installation plate, the chassis and the positioning telescopic arm can be stacked on the same plane.

The special transportation equipment for nuclear power plants used in narrow spaces according to the present invention has the following beneficial effects: by designing the installation plate and the chassis to be rotatably connected, the inclination angle of the transportation equipment can be adjusted so that the cabinet can be placed obliquely on the installation plate When the height of the space is not enough, lower the slope of the installation plate so that the highest point of the cabinet is lower than the lowest point of the space height of the transportation path; when passing through a narrow turning point, increase the slope of the installation plate to shorten the horizontal projection of the cabinet , so as to facilitate turning; further, a baffle is provided at the bottom of the mounting plate, so that when the cabinet is placed on the mounting plate, it will not slide down; further, baffles are provided on both sides of the mounting plate to avoid During transportation, the cabinet slides sideways; further, feet are provided at the bottom of the chassis to suspend the chassis, so that the transportation equipment can be used in conjunction with forklifts to facilitate the insertion and removal of forklifts; Rollers are set so that the use of forklifts can be avoided, and the transportation equipment can be directly consigned. On this basis, in order to facilitate the use of relevant personnel, a push rod is provided on the chassis, so that relevant personnel can push the transportation equipment with force; Alternatively, hinges are used at the joints between the mounting plate, the chassis and the positioning telescopic arm, so that the entire transport equipment can be folded up after use.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the structural representation of the first embodiment of the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention;

Fig. 2 is a schematic diagram of increasing the slope gradient of the transportation equipment shown in Fig. 1 when turning;

Fig. 3 is a schematic diagram of reducing the slope of the transport equipment shown in Fig. 1 when the height is limited;

Fig. 4 is a structural schematic diagram of the second embodiment of the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention;

Fig. 5 is a structural schematic diagram of the combined size adjustment range of the nuclear power plant special transport equipment and cabinets used in a narrow space according to the present invention.

Fig. 6 is a structural schematic diagram of the second embodiment of the special transportation equipment for nuclear power plants used in narrow spaces according to the present invention;

Fig. 7a is a structural schematic diagram of the mounting plate shown in Fig. 6;

Figure 7b is a top view of Figure 7a;

Figure 7c is a right side view of Figure 7a;

Fig. 8a is a structural schematic diagram of the chassis shown in Fig. 6;

Figure 8b is a top view of Figure 8a;

Figure 8c is a right side view of Figure 8a;

Fig. 9a is a schematic structural view of the positioning telescopic arm shown in Fig. 6;

Figure 9b is a side view of Figure 9a;

Figure 9c is a top view of Figure 9a.

Detailed ways

The technical proposal of the present invention is mainly used for placing the control cabinet of a nuclear power plant in a narrow space and adjusting the inclination angle of the cabinet to meet the space height and turning angle of the transportation path.

As shown in Figures 1 and 4, in the first embodiment and the second embodiment of the special transportation equipment for nuclear power plants used in narrow spaces of the present invention, it mainly includes a mounting plate 1 and a chassis 2, wherein the mounting plate 1 is used For placing the cabinet, that is, the cabinet is placed on the mounting plate 1 obliquely during transportation. In the design process, in order to realize the adjustable tilt angle of the cabinet, the bottom of the mounting plate 1 is rotatably connected to one end of the chassis 2. In a preferred embodiment, the bottom of the mounting plate 1 and the edge of one end of the chassis 2 can be adjusted. Rotational connection, it can be understood that the mounting plate 1 can also be connected at the end of the edge; the rotational connection between the mounting plate 1 and the chassis 2 can be implemented as a connection through a rotating shaft, as shown in the embodiment shown in Figures 1 and 2 Among them, the bottom of the mounting plate 1 is connected to the chassis 2 through a hinge 5, and it can also be connected through other rotational connection methods. When the mounting plate 1 rotates at a certain angle, after adjusting the projection height and length after placing the cabinet, in order to fix the relative position between the mounting plate 1 and the chassis 2, a positioning telescopic arm 3 is arranged between the mounting plate 1 and the chassis 2, To fix the position between the mounting plate 1 and the chassis 2; for the specific connection position between the positioning telescopic arm 3 and the mounting plate 1 and the chassis 2, for the convenience of the user to adjust, preferably the positioning telescopic arm 3 is set closer Outside, the two ends of the positioning telescopic arm 3 are respectively connected to the edge of the top of the mounting plate 1 and the edge of the other end of the chassis 2. The other end mentioned here refers to the bottom of the chassis 2 and the mounting plate 1 that is rotationally connected. At one end, by setting the positioning telescopic arm 3 at this position, there is a larger adjustment space, which is convenient for the user to operate.

Further, since the cabinet is installed obliquely on the installation board 1, in order to prevent the cabinet from sliding down, a baffle 4 is provided at the bottom of the installation board 1, and the baffle 4 can be fixedly connected, detachably connected or integrally formed with the installation board 1 ; In order to enhance the assembly performance of the transportation equipment, a locking part can be set on the baffle plate 4, and at the same time, a locking part matching with the locking part can be set on the bottom of the installation plate 1, so that the baffle plate 4 can be detached It is arranged on the bottom of the mounting plate 1; in order to enhance the overall performance of the mounting plate 1, the baffle 4 can be extended upwards at the end of the bottom of the mounting plate 1, so as to realize the integral molding of the baffle 4 and the mounting plate 1; In addition, in the process of transporting the cabinet, the cabinet may slide sideways from the mounting plate 1 during the turning process, so the baffles 4 are also provided on both sides of the mounting plate 1, and similarly the baffles 4 on both sides can also be It is fixedly connected, detachably connected or integrally formed with the mounting plate 1.

In the first embodiment shown in Figures 1-3, the transportation equipment needs to be used in conjunction with a forklift, that is, in this embodiment, the transportation equipment is only a supporting bracket. In order to facilitate the insertion and removal of the transportation equipment by the forklift, a The bottom of 2 is provided with a foot 6, so that the chassis 2 is supported in the air. For the height of the foot 6, as long as the forklift can be flexibly and conveniently inserted and taken out. In an example, the feet 6 at the bottom of the chassis 2 are implemented as pads at a certain angle at the four corners of the bottom of the chassis 2 .

In the second embodiment shown in FIG. 4 , in order to reduce the use of forklifts, rollers 7 are provided on the bottom of the chassis 2, so that the transport equipment can be used to directly carry the cabinet. A push rod 8 is provided, and the setting position of the push rod 8 is preferably the other end opposite to the end where the chassis 2 and the mounting plate 1 are rotatably connected.

In order to reduce the overall weight of the transport equipment, the chassis 2 and the mounting plate 1 are designed as a rectangular frame body welded by angle steel. At the same time, hinges 5 are used at the joints between the mounting plate, the chassis and the positioning telescopic arm, so that the entire transportation device can be folded after use.

That is, as shown in Figures 1 and 4, the positioning telescopic arm 3 and the chassis 2 are connected by a living hinge 5; the mounting plate 1 and the chassis 2 are also connected by a living hinge 5; Living hinge 5 is connected. During use, the length of the telescopic arm (not shown) is adjusted by rotating the screw rod on the positioning telescopic arm 3 , thereby adjusting the angle of the mounting plate 1 . In addition, the joints of the hinges can be disassembled, and the entire transport equipment can be folded up after use, which is convenient for storage and batch transportation; the outer edge of the angle steel on both sides and the bottom of the installation plate faces upwards to prevent the cabinet from sliding and sliding; the bottom of the chassis 2 Comes with two skids for easy insertion and removal from the forklift.

If a forklift is not used for carrying, rollers 7 and push rods 8 can be installed on the frame of the chassis 2 to realize independent carrying. In the transformation of the instrument and control system of the Daya Bay Nuclear Power Plant, as shown in Figure 5, the cabinets with a height of 2200 mm and a thickness of 600 mm can only be transported by forklifts if there is no special transport equipment. If the cabinet is placed vertically, the height of the highest point of the cabinet from the ground is the height of the cabinet plus the height of the forklift (100mm), which is about 2300mm. The height of the transportation path must be higher than 2350 to pass through smoothly, but the actual transportation path is lower than this height in many places, and the height of the lowest point is 2150mm. If the cabinet is placed horizontally, the total length of the transport combination is the length of the cabinet plus the length of the end of the forklift (300mm), which is about 2500mm, and it cannot be turned when passing through a narrow turning.

In a preferred embodiment, the length of the chassis 2 is 1400mm, and the length of the positioning telescopic arm 3 can be adjusted between 700mm-1200mm, which is used in combination with a forklift to transport the same cabinet under the same conditions. When the length of the positioning telescopic arm is adjusted to 700mm, the height of the highest point of the transport combination from the ground is 1240mm, and when the length of the positioning telescopic arm is 1200mm, the height of the transport combination is 2160mm. During transportation, it can be easily adjusted according to the height of the channel, that is, within the range of 1240mm to 2160mm. Since the end of the forklift is just below the free end of the cabinet, the length of the transport assembly in the horizontal direction depends on the projection of the cabinet on the horizontal plane. When the length of the positioning telescopic arm 3 is 700mm, the length of the transport combination is about 2280mm, and when the length of the positioning telescopic arm is 1200mm, the length of the transport combination is about 1870mm. The length can be easily adjusted in the range of 1870mm to 2280mm during transportation, and the size is shorter than 2500mm when the transportation equipment is not used, which is convenient for turning in narrow turns. In the practice of Daya Bay's on-site control system transformation, the transportation equipment designed according to this idea has been applied and achieved good results. It has a wide application prospect.

As shown in Figure 6, the present invention is used for the structure diagram of the second embodiment of the special transportation equipment for nuclear power plants in narrow space; in this embodiment, the end that positioning telescopic arm 3 is connected with chassis 2 is rotatable, but not telescopic, and The other end that positioning telescopic arm 3 is connected with mounting plate 1 is rotatable and telescopic, as shown in Figure 6 this positioning telescopic arm 3 has a telescoping rod 31 and a groove body (it is combined structure among the figure, does not show this Groove body), the shape of the groove body matches the telescopic rod, so that after the telescopic rod is inserted into the groove body, it can be inserted and extracted in the axial direction of the groove body. The structural diagram of the positioning telescopic arm 3 shown in Figures 9a to 9c is a frame structure, and the upper part of the frame has two hinged parts, so that it can be hinged with the corresponding installation positions on the left and right sides of the mounting plate 1, and then The two hinges are connected together by a cross bar. One end of the telescopic rod is fixed in the middle of the cross bar. Connect, the middle part of this opening frame offers a through hole, and this through hole matches with the shape of telescopic rod, thereby this telescopic rod can be twitched to adjust the relative length of positioning telescopic arm 3 through this through hole. As shown in Figures 7a to 7c, the schematic diagram of the structure of the mounting plate 1 in this embodiment, two cross bars are arranged in the middle of the mounting plate 1, thereby enhancing the bearing capacity of the mounting plate 1, and the mounting plate 1 and the positioning telescopic The hinged installation position of the arm 3 is arranged on the left and right sides of the frame of the installation board 1, and is located between the top cross bar of the installation board 1 and the first middle cross bar and is close to the first middle cross bar. For the installation board 1 See Figures 7a to 7c for specific size data; as shown in Figures 8a to 8c, the structural schematic diagram of the chassis 2 in this embodiment is provided with two cross bars in the middle of the chassis 2, thereby enhancing the bearing capacity of the chassis 2, wherein The positioning telescopic arm 3 is connected with the top crossbar of the chassis 2, and the bottom of the mounting plate 1 is connected with the bottom crossbar of the chassis 2.

The present invention is described through several specific embodiments. Those skilled in the art should understand that various transformations and equivalent substitutions can be made to the present invention without departing from the scope of the present invention. In addition, various modifications may be made to the present invention for a particular situation or circumstances without departing from the scope of the present invention. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but should include all implementations falling within the scope of the appended claims.

Claims (10)

1. A special transportation equipment for nuclear power plants used in narrow spaces, characterized in that it includes a mounting plate and a chassis, the bottom of the mounting plate is rotatably connected to the chassis, and a device for real-time Adjustable positioning telescopic arm. 2. The special transport equipment for nuclear power plants used in narrow spaces according to claim 1, characterized in that baffles are provided on the bottom and/or both sides of the installation plate. 3. The special transportation equipment for nuclear power plants used in narrow spaces according to claim 1, characterized in that, feet are provided at the bottom of the chassis. 4. The special transportation equipment for nuclear power plants used in narrow spaces according to claim 1, characterized in that rollers are provided at the bottom of the chassis. 5. The special transportation equipment for nuclear power plants used in narrow spaces according to claim 4, characterized in that a push rod is also arranged on the chassis. 6. The special transportation equipment for nuclear power plants used in narrow spaces according to any one of claims 1-5, wherein the chassis is a rectangular frame body welded by angle steel. 7. The special transportation equipment for nuclear power plants used in narrow spaces according to any one of claims 1-5, characterized in that the mounting plate is a rectangular frame body welded by angle steel. 8. The special transportation equipment for nuclear power plants used in narrow spaces according to any one of claims 1-5, characterized in that the two ends of the positioning telescopic arm are respectively connected to the mounting plate and the chassis through hinges. 9. The special transportation equipment for nuclear power plants used in narrow spaces according to any one of claims 1-5, characterized in that the bottom of the installation plate is rotatably connected to the chassis through a hinge. 10. The special transportation equipment for nuclear power plants used in narrow spaces according to any one of claims 1-5, characterized in that the installation plate, the chassis and the positioning telescopic arm can be superimposed on the same plane.

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