CN211319743U

CN211319743U - Underwater telescopic tool for cobalt isotope production

Info

Publication number: CN211319743U
Application number: CN201921996804.6U
Authority: CN
Inventors: 吴伟; 蒋军建; 谢国彪; 卓成金; 施维真; 叶伟
Original assignee: CNNC Nuclear Power Operation Management Co Ltd; Third Qinshan Nuclear Power Co Ltd
Current assignee: CNNC Nuclear Power Operation Management Co Ltd; Third Qinshan Nuclear Power Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-21
Anticipated expiration: 2029-11-18

Abstract

The utility model belongs to the technical field of nuclear power maintenance, concretely relates to cobalt isotope production is flexible instrument under water. The cobalt isotope production underwater telescopic tool comprises: the device comprises an outer pipe, an inner pipe, a cable and a power device; the inner pipe is arranged in the outer pipe, the top end of the inner pipe is connected with the cable, and the power device controls the inner pipe to move up and down relative to the outer pipe through dragging or releasing the cable; the outer wall of the inner pipe is provided with a convex structure, the inner wall of the outer pipe is provided with a linear groove perpendicular to the bottom surface of the outer pipe, and the convex structure is inserted into the groove, so that the inner pipe moves up and down along the groove; the bottom of inner tube sets up the gripper, and the gripper can be the draw-in groove of inserting cobalt rod bunch top of adaptation. The embodiment of the disclosure realizes accurate positioning of cobalt rod bundle hoisting, and effectively increases the efficiency of moving the cobalt rod bundle.

Description

Underwater telescopic tool for cobalt isotope production

Technical Field

The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to cobalt isotope production instrument that stretches out and draws back under water.

Background

The heavy water reactor resource produces cobalt isotope, after a period of irradiation of the reactor, cobalt 59 is changed into cobalt 60, which belongs to high radioactive element, a series of operations must be carried out in a spent fuel pool, cobalt isotope rod bundles are decomposed section by section and loaded into a hanging basket through a special tool, so that the hanging basket is conveniently loaded into a shielding transport container, but in the production process, one process is to put the hanging basket loaded with the cobalt isotope into a position 6 meters under water, the hanging basket cannot be lifted by a crane and then put into the pool due to the limitation of factory building and crane height, and meanwhile, the hanging basket cannot be directly placed at the bottom of the pool by using a thread rope due to certain weight of the hanging basket, and cannot be accurately positioned and separated from the hanging basket due to flexible connection,

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, an underwater telescopic tool for producing cobalt isotopes is provided.

According to an aspect of an embodiment of the present disclosure, there is provided a cobalt isotope production underwater telescopic tool including: the device comprises an outer pipe, an inner pipe, a cable and a power device;

the inner pipe is arranged in the outer pipe, the top end of the inner pipe is connected with the cable, and the power device controls the inner pipe to move up and down relative to the outer pipe by dragging or releasing the cable;

the outer wall of the inner pipe is provided with a convex structure, the inner wall of the outer pipe is provided with a linear groove perpendicular to the bottom surface of the outer pipe, and the convex structure is inserted into the groove, so that the inner pipe moves up and down along the groove;

the bottom end of the inner tube is provided with a gripper, and the gripper can be inserted into the clamping groove at the top end of the cobalt rod bundle in a matching mode.

In one possible implementation, the outer pipe upper portion has a first through hole radially penetrating through the outer pipe, the inner pipe upper portion has a second through hole radially penetrating through the inner pipe, and the cobalt isotope production underwater telescopic tool further includes: a bolt;

when the first through hole and the second through hole are opposite, the bolt can be inserted into the first through hole and the second through hole so as to fix the inner pipe and the outer pipe.

In a possible implementation manner, the outer wall of the inner pipe is provided with a plurality of protruding structures, the inner wall of the outer pipe is provided with a plurality of grooves, and each protruding structure is correspondingly inserted into one groove.

In a possible implementation manner, the top end of the inner pipe is provided with a first hanging ring, and one end of the cable is connected to the first hanging ring.

In one possible implementation, the cobalt isotope production subsea telescoping tool further comprises: the compartment body is used for placing the power device, and the top end of the compartment body is provided with a second hanging ring.

In one possible implementation, the material of the outer tube comprises stainless steel.

In one possible implementation, the material of the inner tube comprises stainless steel.

In one possible implementation, the material of the cable comprises stainless steel.

The beneficial effects of the utility model reside in that: this disclosed embodiment can adopt power dress to reciprocate through the outer tube that the hawser will grab the cobalt rod cluster, can not receive the restriction of factory building height from this, is favorable to removing the cobalt rod cluster smoothly, and in addition, through the recess of outer tube and the protruding structure of inner tube, can effectually restrict the motion path of inner tube on the straight line route to effectively prevent that the inner tube from rotating, realize the accurate positioning to cobalt rod cluster hoist and mount, effectively increase the efficiency of removing the cobalt rod cluster.

Drawings

FIG. 1 is a front sectional view of a cobalt isotope production subsea telescoping tool shown in accordance with an exemplary embodiment.

FIG. 2 is a cross-sectional side view of a cobalt isotope production subsea telescoping tool shown in accordance with an exemplary embodiment.

Detailed Description

FIG. 1 is a front sectional view of a cobalt isotope production subsea telescoping tool shown in accordance with an exemplary embodiment. FIG. 2 is a cross-sectional side view of a cobalt isotope production subsea telescoping tool shown in accordance with an exemplary embodiment. As shown in fig. 1 and 2, the cobalt isotope production underwater telescopic tool may include: outer pipe 2, inner pipe 10, cable 8, power device 5.

In the embodiment of the present disclosure, the materials of the outer tube, the inner tube and the cable may include stainless steel, the outer tube and the inner tube may be formed by welding steel plates, or may be integrally formed, it should be noted that other materials, such as plastics, may also be selected as the materials of the outer tube, the inner tube and the cable, the materials of the outer tube, the inner tube and the cable may be the same, partially the same or completely different, and the embodiment of the present disclosure does not limit this.

The power device may be, for example, a winch as long as the power device can pull the cable, and the embodiment of the present disclosure does not limit the type of the power device.

As an example of this embodiment, the inner pipe 10 may be disposed in the outer pipe 2, and the top end of the inner pipe 10 may be connected to the cable 8, for example, the top end of the inner pipe 10 may have a first hanging ring 14, the cable 8 may be fixed to the first hanging ring 14, and the power device 5 controls the inner pipe 10 to move up and down relative to the outer pipe 2 by dragging or releasing the cable 8.

The outer wall of the inner pipe 10 may have a protrusion 3, the inner wall of the outer pipe 2 may have a linear groove 11 perpendicular to the bottom surface of the outer pipe 2, the protrusion 3 may be inserted into the groove 11, and when the inner pipe 10 moves up and down relative to the outer pipe 2, the protrusion 3 may be restricted in the groove 11, so that the inner pipe 10 moves up and down along the groove 11;

the bottom end of the inner tube 10 can be provided with a gripper 1, and the gripper 1 can be inserted into a clamping groove at the top end of the cobalt rod bundle in a matching mode, so that the cobalt rod bundle can be gripped.

In a possible implementation manner, the gripper 1 may be, for example, a star shape, the slot may have a notch adapted to the shape of the gripper 1, the gripper 1 may be placed in the notch, and the gripper 1 may be rotated to enable each gripper head of the gripper 1 to be clamped into the slot, so that the gripper 1 may grip the cobalt rod bundle, the inner tube 10 gripping the cobalt rod bundle may be lowered into the spent fuel pool through the cable 8, the inner tube 10 is rotated to enable the gripper 1 to rotate to a position matching the shape of the slot to lift the inner tube 10, so that the gripper 1 is disengaged from the slot, thereby completing the lowering of the cobalt rod bundle, and the lifting of the cobalt rod bundle may also be achieved through the similar process.

This disclosed embodiment can adopt power dress to reciprocate through the outer tube that the hawser will grab the cobalt rod cluster, can not receive the restriction of factory building height from this, is favorable to removing the cobalt rod cluster smoothly, and in addition, through the recess of outer tube and the protruding structure of inner tube, can effectually restrict the motion path of inner tube on the straight line route to effectively prevent that the inner tube from rotating, realize the accurate positioning to cobalt rod cluster hoist and mount, effectively increase the efficiency of removing the cobalt rod cluster.

In one possible implementation, the upper portion of the outer pipe 2 has a first through hole 12 radially penetrating the outer pipe 2, the upper portion of the inner pipe 10 has a second through hole radially penetrating the inner pipe 10, and the cobalt isotope production underwater telescopic tool further includes: a bolt 9; the plug pin 9 can be inserted into the first through hole 12 and the second through hole when the first through hole 12 and the second through hole are opposed to each other to fix the inner pipe 10 and the outer pipe 2. This prevents the inner tube 10 from falling off, and increases the stability of the tool.

In a possible implementation, the outer wall of the inner tube 10 may have a plurality of protruding structures 3, the inner wall of the outer tube 2 may have a plurality of grooves 11, and each protruding structure 3 may be inserted into one of the grooves 11. Thus, the stability of the movement of the inner tube 10 can be further increased, preventing the inner tube 10 from rotating.

In one possible implementation, the cobalt isotope production underwater telescoping tool may further include: the carriage body 13 can be used for placing the power device 5 in the carriage body 13, and the top end of the carriage body 13 can be provided with a second hanging ring 6. Thus, the inner pipe 10 and the outer pipe 2 can be rotated by lifting the carriage body 13 through the second lifting ring 6, and the working efficiency is further improved.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A cobalt isotope production underwater telescoping tool, characterized in that the cobalt isotope production underwater telescoping tool comprises: the device comprises an outer pipe, an inner pipe, a cable and a power device;

2. The underwater cobalt isotope production telescoping tool of claim 1, wherein the outer tube upper portion has a first throughbore radially extending through the outer tube, the inner tube upper portion has a second throughbore radially extending through the inner tube, the underwater cobalt isotope production telescoping tool further comprising: a bolt;

3. The underwater cobalt isotope production telescopic tool as claimed in claim 1, wherein the outer wall of the inner pipe has a plurality of convex structures, the inner wall of the outer pipe has a plurality of grooves, and each convex structure is inserted into one of the grooves.

4. The underwater cobalt isotope production telescopic tool as claimed in claim 1, wherein the top end of the inner pipe has a first hanging ring, and one end of the cable is connected to the first hanging ring.

5. The cobalt isotope production subsea telescoping tool of claim 1, further comprising: the compartment body is used for placing the power device, and the top end of the compartment body is provided with a second hanging ring.

6. The underwater cobalt isotope production telescoping tool of claim 1, wherein the material of the outer tube comprises stainless steel.

7. The underwater cobalt isotope production telescoping tool of claim 1, wherein the material of the inner tube comprises stainless steel.

8. The underwater cobalt isotope production telescoping tool of claim 1, wherein the material of the cable comprises stainless steel.