CN219037871U

CN219037871U - Nuclear power spent fuel storage basket detection tool

Info

Publication number: CN219037871U
Application number: CN202223517472.3U
Authority: CN
Inventors: 杨国; 赵帅帅
Original assignee: Shanghai Hongzhong Equipment Co ltd
Current assignee: Shanghai Hongzhong Equipment Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-16
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a nuclear power spent fuel storage basket detection tool which comprises a detection tool arranged on a frame and used for detecting a basket cover and a basket seat of a fuel basket, wherein the detection tool comprises a detection platform arranged on the frame and used for placing the basket cover and the basket seat of the fuel basket, a hand-operated rotating device arranged on the detection platform, and a dial indicator device movably arranged on the hand-operated rotating device and used for detecting the basket cover and the basket seat of the fuel basket. The utility model has the beneficial effects that: the utility model can provide detection efficiency and detection accuracy by adopting the detection tool.

Description

Nuclear power spent fuel storage basket detection tool

Technical Field

The utility model relates to the technical field of nuclear power station spent fuel, in particular to a nuclear power spent fuel storage basket detection tool.

Background

Before loading spent fuel, the circumference, the centrality, the flatness and the interior of the fuel basket are required to be checked, because each batch of the fuel basket has 40-50 fuel baskets, the customer requirement is strict, 30 percent of each batch is required to be subjected to spot check, namely 12-15 fuel baskets, the conventional detection mode is to detect various indexes of the fuel basket by manually operating various equipment, so that the detection efficiency is low and the detection accuracy is wrong, and therefore, the applicant develops a nuclear power spent fuel storage basket detection tool capable of ensuring the detection efficiency and the detection accuracy.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings of the prior art and provide a nuclear power spent fuel storage basket detection tool for solving the problems.

The technical problems solved by the utility model can be realized by adopting the following technical scheme:

the utility model provides a nuclear power spent fuel stores basket detection frock, its characterized in that includes one and sets up in the frame and is used for detecting the basket lid and the basket seat of fuel basket, detect the frock including set up in the frame and be used for placing the basket lid and the basket seat of fuel basket and set up hand formula rotating device and the activity of setting on detecting the platform and be used for detecting the percentage table device of basket lid and the basket seat of fuel basket on hand formula rotating device;

when the basket cover or the basket seat of the fuel basket is placed on the detection platform, the dial indicator device is used for detecting the basket cover or the basket seat of the fuel basket, and whether the basket cover or the basket seat reaches a specified value is observed through the dial indicator device.

In a preferred embodiment of the utility model, a detection boss matched with the basket cover or the basket seat is arranged at the middle part of the detection platform.

In a preferred embodiment of the utility model, the two sides of the detection platform are respectively provided with a contour block for preventing the basket seat from inclining to one side and an adjusting bolt for adjusting the levelness of the basket seat.

In a preferred embodiment of the utility model, a central hole of the basket cover matched with the detection boss is arranged at the middle part of the basket cover.

In a preferred embodiment of the utility model, a central hole of the basket seat matched with the detection platform is arranged in the middle of the basket seat.

In a preferred embodiment of the utility model, the 15 ° chamfer of the basket seat central hole coincides with the 15 ° chamfer of the inspection platform.

In a preferred embodiment of the utility model, the hand-operated rotating device comprises a bracket which is movably matched with the dial indicator device, a motor which is arranged on the bracket and used for driving the dial indicator device to work, and an operation rocker which is connected with the motor.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that: the utility model can provide detection efficiency and detection accuracy by adopting the detection tool.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a diagram of the utility model in operation with a basket lid.

FIG. 3 is a diagram of the utility model in operation with respect to the basket.

Detailed Description

The utility model is further described below in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Referring to fig. 1 to 3, a nuclear power spent fuel storage basket detection tool includes a detection tool 20 disposed on a frame 10 and used for detecting a basket cover 1 and a basket seat 2 of a fuel basket, the detection tool 20 includes a detection platform 30 disposed on the frame 10 and used for placing the basket cover 1 and the basket seat 2 of the fuel basket, a hand-operated rotating device 40 disposed on the detection platform 30, and a dial indicator device 50 movably disposed on the hand-operated rotating device 40 and used for detecting the basket cover 1 and the basket seat 2 of the fuel basket. Specifically, the detection tool 20 is connected with the frame 10 through the bearing assembly 11. The dial indicator device is preferably a dial indicator, and the dial indicator is used for detecting each index of the basket cover 1 and the basket seat 2 of the fuel basket, and other detection tools such as: and measuring tools such as vernier calipers, steel straightedge and the like.

The middle part of the detection platform 30 is provided with a detection boss 31 matched with the basket cover 1 or the basket seat 2. The both sides of the inspection platform 30 in this embodiment are respectively provided with a contour block 32 for preventing the basket base 2 from being inclined to one side and an adjusting bolt 33 for adjusting the levelness of the basket base 2.

The middle part of the basket cover 1 is provided with a basket cover center hole 1a matched with the detection boss 31. And the middle part of the basket seat 2 is provided with a basket seat center hole 2a matched with the detection platform 31. The 15 ° chamfer of the seat central hole 2a in this embodiment coincides with the 15 ° chamfer of the detection platform 31. Specifically, the axial dimension of the detection boss 31 is Φ114.95mm, and the central hole dimension of the basket cover 1 is Φ115±0.05mm.

The hand-operated rotating device 40 comprises a bracket 41 movably matched with the dial indicator device 50, a motor 42 arranged on the bracket 41 and used for driving the dial indicator device 50 to work, and an operation rocker 43 connected with the motor 42.

The working principle of the utility model is as follows:

when the lid 1 or the seat 2 of the fuel basket is placed on the frame 10, the dial indicator device 50 is located in the detection range (refer to fig. 2 or 3 for emphasis) by driving the hand-operated rotating device 40, and when the lid 1 is detected, the lid center hole 1a of the lid 1 passes through the detection boss 31 of the detection platform 30, and the following detection is performed on the lid 1 by the dial indicator device: 1. whether the runout of the outer circle of the top plate of the basket cover 1 to the central hole is less than or equal to 0.2mm; 2. whether the jump of the basket cover 1 from the top plate to the central hole is less than or equal to 0.8mm; 3. whether the jump of the open end of the basket cover 1 to the central hole is less than or equal to 1.5mm; 4. whether the flatness of the open end of the basket cover 1 is less than or equal to 1.0mm; then the above test content standard is a qualified product, when detecting the basket seat 2, the basket seat center hole 2a of the basket seat 2 passes through the detecting boss 31 of the detecting platform 30, the equal-height blocks 32 for preventing the basket seat 2 from inclining towards one side are placed on two sides of the detecting platform 30, after the equal-height blocks are placed, the adjusting bolts 33 for adjusting the levelness of the basket seat 2 are placed at the cross symmetrical positions of the detecting platform 30, and finally the following detection is performed on the basket seat 2 through the dial indicator device: 1. whether the flatness of the machined circular ring with the width of the upper opening of the bottom plate of the basket seat 2 is less than or equal to 0.4mm; 2. and if the jump of the upper end of the central column of the basket seat 2 to the central hole of the bottom plate is less than or equal to 0.8mm, the test content standard is a qualified product.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a nuclear power spent fuel stores basket and detects frock, its characterized in that, including one set up in the frame and be used for detecting the basket lid and the basket seat of fuel basket, detect the frock including setting up in the frame and be used for placing the basket lid and the basket seat of fuel basket and set up hand formula rotating device and the activity on detecting platform set up hand formula rotating device is last and be used for detecting the basket lid and the basket seat of fuel basket the percentage table device.

2. The nuclear power spent fuel storage basket detection tool according to claim 1, wherein a detection boss matched with the basket cover or the basket seat is arranged in the middle of the detection platform.

3. The nuclear power spent fuel storage basket detection tool according to claim 1, wherein the two sides of the detection platform are respectively provided with an equal-height block for preventing the basket seat from inclining towards one side and an adjusting bolt for adjusting the levelness of the basket seat.

4. The nuclear power spent fuel storage basket detection tool according to claim 2, wherein a basket cover center hole matched with the detection boss is formed in the middle of the basket cover.

5. The nuclear power spent fuel storage basket detection tool according to claim 2, wherein a basket seat center hole matched with the detection platform is formed in the middle of the basket seat.

6. The nuclear power spent fuel storage basket detection tool according to claim 5, wherein the 15-degree chamfer of the basket seat center hole coincides with the 15-degree chamfer of the detection platform.

7. The nuclear power spent fuel storage basket detection tool according to claim 1, wherein the hand-operated rotating device comprises a bracket movably matched with the dial indicator device, a motor arranged on the bracket and used for driving the dial indicator device to work, and an operation rocker connected with the motor.