CN215433435U - Disassembling tool for GIS-GIB of nuclear power plant - Google Patents
Disassembling tool for GIS-GIB of nuclear power plant Download PDFInfo
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- CN215433435U CN215433435U CN202120682193.9U CN202120682193U CN215433435U CN 215433435 U CN215433435 U CN 215433435U CN 202120682193 U CN202120682193 U CN 202120682193U CN 215433435 U CN215433435 U CN 215433435U
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Abstract
The disclosure belongs to the technical field of nuclear power maintenance, and particularly relates to a disassembly and assembly tool for a GIS-GIB of a nuclear power plant. The disassembly and assembly tool for the GIS-GIB of the nuclear power plant can apply accurate torque to the GIS-GIB transition conductor and the hexagon socket head cap screw of the plum blossom contact base in the narrow internal space of the GIS-GIB of the nuclear power plant, and effectively avoids the risk that arc short circuit is caused due to bolt loosening, and the upper and lower switches are tripped, so that the unit is shut down and stopped. The disassembly and assembly tool for the GIS-GIB of the nuclear power plant has the advantages of simple structure, light weight, easiness in manufacturing, low cost, reusability and higher popularization value.
Description
Technical Field
The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a disassembly and assembly tool for a GIS-GIB of a nuclear power plant.
Background
At present, a high-voltage bushing of a main transformer of a domestic heavy water reactor nuclear power plant is an oil-Gas type high-voltage bushing, one end of the bushing, which is connected with a high-voltage side outgoing line of the transformer, is immersed in an insulating oil medium, and one end of the bushing, which is connected with a Gas Insulated Substation (GIS) high-voltage electrified conductor, is immersed in sulfur hexafluoride (SF6) Gas, so that a section of 525kV GIS sleeve and an inner conductor GIB (Gas Insulated Bus) thereof need to be removed when the high-voltage bushing of the transformer is replaced, and the GIS sleeve and the inner conductor thereof can also be called as a GIS-GIB. Because the conventional maintenance tool cannot remove the transition conductor and apply torque to the hexagon socket head cap bolt for connecting the transition conductor and the fixed plum blossom contact base in a GIS-GIB narrow space, the 525kV GIS-GIB can not be smoothly disassembled and assembled.
Disclosure of Invention
In order to overcome the problems in the related art, the disassembly and assembly tool for the GIS-GIB of the nuclear power plant is provided.
According to an aspect of the disclosed embodiments, there is provided a disassembly and assembly tool of a nuclear power plant GIS-GIB, the disassembly and assembly tool of a nuclear power plant GIS-GIB comprising: the device comprises an inner hexagonal wrench, a first conversion head, a second conversion head and a torque wrench;
the first conversion head comprises a sleeve, a nut and a locking screw;
the inner hexagonal wrench is L-shaped, one end of the inner hexagonal wrench is inserted into the sleeve, and the other end of the inner hexagonal wrench is inserted into an inner hexagonal groove of an inner hexagonal bolt of the GIS-GIB transition conductor;
the side wall of one side of the sleeve is provided with a threaded through hole penetrating through the outer wall and the inner wall of the side along the radial direction, the locking screw is connected in the threaded through hole in a threaded mode, and the part, inserted into the sleeve, of the inner hexagonal wrench is pressed tightly, so that the inner hexagonal wrench is tightly connected with the first conversion head;
the nut is connected to the outer side of the sleeve, the nut can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the first conversion head and the inner hexagon wrench can be used for rotating an inner hexagon bolt of the GIS-GIB transition conductor;
the second conversion head is rod-shaped, one end of the second conversion head is a ball head inner hexagon, the other end of the second conversion head is a hexagonal prism, the ball head inner hexagon is inserted into an inner hexagon groove of an inner hexagon bolt of a GIS-GIB (gas insulated switchgear-GIB) plum blossom contact base, the other end of the second conversion head can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the inner hexagon bolt of the GIS-GIB plum blossom contact base can be rotated through the second conversion head.
In one possible implementation manner, the disassembling tool for the nuclear power plant GIS-GIB further includes: lengthening a rod;
one end of the extension bar is a quincuncial sleeve head, and the other end of the extension bar is a hexagonal prism;
the nut of the first conversion head can be inserted into the quincuncial sleeve head, the other end of the extension bar can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the hexagon socket head cap screw of the GIS-GIB transition conductor can be rotated through the extension bar, the first conversion head and the hexagon socket head cap wrench.
In a possible implementation manner, the allen key is composed of a first portion and a second portion, a connection point of the first portion and the second portion is an inflection point of an L-shape of the allen key, a length of the first portion is between 12 cm and 13 cm, and a length of the second portion is between 2 cm and 3 cm.
In one possible implementation, the length of the sleeve is between 5.9 centimeters and 6.1 centimeters.
In one possible implementation, the center of the threaded hole is spaced from the end of the sleeve by a distance of 1.2 cm to 1.4 cm.
In a possible realization, the locking screw is located at the position of the axis of the nut.
In one possible implementation, the length of the second conversion head is between 18 cm and 19 cm.
In one possible implementation, the locking screw and the nut are on the same side of the sleeve.
In one possible implementation, the nut is welded to the sleeve.
In one possible implementation, the material of the socket head wrench, the first conversion head, the extension bar, the second conversion head, and the torque wrench is carbon steel.
The invention has the beneficial effects that: the disassembly and assembly tool for the GIS-GIB of the nuclear power plant can apply accurate torque to the GIS-GIB transition conductor and the hexagon socket head cap screw of the plum blossom contact base in the narrow internal space of the GIS-GIB of the nuclear power plant, and effectively avoids the risk that arc short circuit is caused due to bolt loosening, and the upper and lower switches are tripped, so that the unit is shut down and stopped. The disassembly and assembly tool for the GIS-GIB of the nuclear power plant has the advantages of simple structure, light weight, easiness in manufacturing, low cost, reusability and higher popularization value.
Drawings
FIG. 1 is a perspective view of a first transition head of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment.
FIG. 2 is an axial cross-sectional view of a first transition head of a nuclear power plant GIS-GIB disassembly tool shown in accordance with an exemplary embodiment.
FIG. 3 is a perspective view of a socket head wrench of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment.
FIG. 4 is a perspective view of a second transition head of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment.
FIG. 5 is a perspective view of an extension bar of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment.
FIG. 6 is an axial cross-sectional view of an extension bar of a nuclear power plant GIS-GIB disassembly tool shown in accordance with an exemplary embodiment.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a perspective view of a first transition head of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment. FIG. 2 is an axial cross-sectional view of a first transition head of a nuclear power plant GIS-GIB disassembly tool shown in accordance with an exemplary embodiment. FIG. 3 is a perspective view of a socket head wrench of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment. FIG. 4 is a perspective view of a second transition head of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment. As shown in fig. 1 to 4, the disassembly and assembly tool of the GIS-GIB of the nuclear power plant includes: a socket head wrench 10, a first conversion head 20, a second conversion head 30, and a torque wrench (not shown);
the first transfer head 20 includes: a sleeve 202, a nut 201 and a locking screw (not shown in the figure);
the inner hexagonal wrench 10 is L-shaped, one end of the inner hexagonal wrench 10 is inserted into the sleeve 202, and the other end of the inner hexagonal wrench 10 is inserted into an inner hexagonal groove of an inner hexagonal bolt of the GIS-GIB transition conductor;
a threaded through hole 203 penetrating through the outer wall and the inner wall of one side of the sleeve 202 is formed in the side wall of the side along the radial direction, a locking screw is connected in the threaded through hole 203 in a threaded manner, and the part of the inner hexagonal wrench 10 inserted into the sleeve 202 is compressed, so that the inner hexagonal wrench 10 is tightly connected with the first conversion head 20;
the nut 201 is connected to the outer side of the sleeve 202, the nut 201 can be inserted into a sleeve of the torque wrench, and the handle of the torque wrench can be rotated to rotate the hexagon socket head cap screw of the GIS-GIB transition conductor through the first conversion head 20 and the hexagon socket head cap wrench 10;
the second conversion head 30 is in a rod shape, one end of the second conversion head 30 is a ball head inner hexagon 301, the other end of the second conversion head 30 is a first hexagonal prism 302, the ball head inner hexagon 301 is inserted into an inner hexagon groove of an inner hexagon bolt of a GIS-GIB plum blossom contact base, the other end of the second conversion head 30 can be inserted into a sleeve of a torque wrench, a handle of the torque wrench is rotated, and the inner hexagon bolt of the GIS-GIB plum blossom contact base can be rotated through the second conversion head 30.
FIG. 5 is a perspective view of an extension bar of a nuclear power plant GIS-GIB disassembly and assembly tool shown in accordance with an exemplary embodiment. FIG. 6 is an axial cross-sectional view of an extension bar of a nuclear power plant GIS-GIB disassembly tool shown in accordance with an exemplary embodiment. As shown in fig. 5 and 6, the disassembly and assembly tool of the GIS-GIB of the nuclear power plant further includes: an extension bar 40; one end of the extension bar 40 is provided with a quincunx sleeve head 401, and the other end of the extension bar 40 is provided with a second hexagonal prism 402;
the nut 201 of the first conversion head 20 can be inserted into the quincunx sleeve head 401, the other end of the extension bar 40 can be inserted into the sleeve of the torque wrench, and the handle of the torque wrench can be rotated to rotate the hexagon socket head cap screw of the transition conductor of the GIS-GIB through the extension bar 40, the first conversion head 20 and the hexagon socket wrench 10.
In a possible implementation manner, the allen key is composed of a first part and a second part, the joint of the first part and the second part is an inflection point of an L-shape of the allen key, the length of the first part is 12 cm to 13 cm, and the length of the second part is 2 cm to 3 cm.
In one possible implementation, the length of the cannula is between 5.9 centimeters and 6.1 centimeters. For example, the length of the cannula is 6 centimeters.
In one possible implementation, the center of the threaded hole is spaced from the end of the sleeve by a distance of 1.2 cm to 1.4 cm. For example, the center of the threaded hole is 1.235 cm from one end of the sleeve.
In a possible realization, the locking screw is located at the position of the axis of the nut.
In one possible implementation, the length of the second conversion head is between 18 cm and 19 cm. For example, the second conversion head has a length of 18.5 centimeters.
In one possible implementation, the locking screw and the nut are the same side of the sleeve.
In one possible implementation, the nut is welded to the sleeve.
In one possible implementation, the material of the socket head wrench, the first conversion head, the extension bar, the second conversion head and the torque wrench is carbon steel.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A disassembly and assembly tool of a GIS-GIB of a nuclear power plant is characterized by comprising: the device comprises an inner hexagonal wrench, a first conversion head, a second conversion head and a torque wrench;
the first conversion head comprises a sleeve, a nut and a locking screw;
the inner hexagonal wrench is L-shaped, one end of the inner hexagonal wrench is inserted into the sleeve, and the other end of the inner hexagonal wrench is inserted into an inner hexagonal groove of an inner hexagonal bolt of the GIS-GIB transition conductor;
the side wall of one side of the sleeve is provided with a threaded through hole penetrating through the outer wall and the inner wall of the side along the radial direction, the locking screw is connected in the threaded through hole in a threaded mode, and the part, inserted into the sleeve, of the inner hexagonal wrench is pressed tightly, so that the inner hexagonal wrench is tightly connected with the first conversion head;
the nut is connected to the outer side of the sleeve, the nut can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the first conversion head and the inner hexagon wrench can be used for rotating an inner hexagon bolt of the GIS-GIB transition conductor;
the second conversion head is rod-shaped, one end of the second conversion head is a ball head inner hexagon, the other end of the second conversion head is a hexagonal prism, the ball head inner hexagon is inserted into an inner hexagon groove of an inner hexagon bolt of a GIS-GIB (gas insulated switchgear-GIB) plum blossom contact base, the other end of the second conversion head can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the inner hexagon bolt of the GIS-GIB plum blossom contact base can be rotated through the second conversion head.
2. The disassembly tool of a nuclear power plant GIS-GIB of claim 1, further comprising: lengthening a rod;
one end of the extension bar is a quincuncial sleeve head, and the other end of the extension bar is a hexagonal prism;
the nut of the first conversion head can be inserted into the quincuncial sleeve head, the other end of the extension bar can be inserted into a sleeve of the torque wrench, a handle of the torque wrench is rotated, and the hexagon socket head cap screw of the GIS-GIB transition conductor can be rotated through the extension bar, the first conversion head and the hexagon socket head cap wrench.
3. The disassembly and assembly tool of the GIS-GIB of the nuclear power plant according to claim 1, wherein the socket head wrench comprises a first portion and a second portion, the connection point of the first portion and the second portion is an inflection point of an L-shaped shape of the socket head wrench, the length of the first portion is 12 cm to 13 cm, and the length of the second portion is 2 cm to 3 cm.
4. The disassembly and assembly tool of the nuclear power plant GIS-GIB of claim 1, wherein the length of the sleeve is between 5.9 cm and 6.1 cm.
5. The disassembly and assembly tool of the nuclear power plant GIS-GIB of claim 1, wherein a center of the threaded hole is spaced from one end of the sleeve by a distance of 1.2 cm to 1.4 cm.
6. The disassembly and assembly tool of the nuclear power plant GIS-GIB of claim 5, wherein the locking screw is located at an axis of the nut.
7. The disassembly and assembly tool of a nuclear power plant GIS-GIB of claim 1, wherein the length of the second conversion head is between 18 cm and 19 cm.
8. The disassembly and assembly tool of a nuclear power plant GIS-GIB of claim 1, wherein the locking screw and the nut are on the same side of the sleeve.
9. The disassembly and assembly tool of the nuclear power plant GIS-GIB of claim 1, wherein the nut is welded to the sleeve.
10. The disassembly and assembly tool of the nuclear power plant GIS-GIB of claim 1, wherein the material of the socket head wrench, the first conversion head, the extension bar, the second conversion head and the torque wrench is carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682193.9U CN215433435U (en) | 2021-04-02 | 2021-04-02 | Disassembling tool for GIS-GIB of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682193.9U CN215433435U (en) | 2021-04-02 | 2021-04-02 | Disassembling tool for GIS-GIB of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215433435U true CN215433435U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120682193.9U Active CN215433435U (en) | 2021-04-02 | 2021-04-02 | Disassembling tool for GIS-GIB of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215433435U (en) |
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2021
- 2021-04-02 CN CN202120682193.9U patent/CN215433435U/en active Active
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