A GIS high-voltage switch housing that is easy to assemble

Abstract

The present invention provides a GIS high-voltage switch housing that is easy to assemble and is applied to the field of electrical switches. The housing, through the cooperation of a reserved guide cavity, a guide insert, a sealing ring and a guide ring, can not only guide the pre-assembly process of the housing, the housing cover and the housing bottom, simplifying the assembly steps and improving the pre-assembly position accuracy and efficiency, but can also limit the connection position of the housing, the housing cover and the housing bottom during the welding assembly process, effectively guide the weld, further reduce the difficulty of the welding assembly process, and improve its welding accuracy. While effectively avoiding mechanical damage to the sealing ring, it also improves the quality of the sealing welding, ensures its sealing effect, ensures the maintenance of the sealing performance of the housing, and thus improves the production quality of the housing and the safety during subsequent use.

Description

Technical Field

[0001] The present application relates to the field of electric switches, and in particular to a GIS high-voltage switch housing that is easy to assemble. Background Art

[0002] The concept of GIS is sulfur hexafluoride enclosed combination electrical equipment, internationally known as "Gas Insulated Switchgear" (GIS), which organically combines the primary equipment of a substation except the transformer, including the casing, circuit breaker, disconnector, earthing switch, voltage transformer, current transformer, lightning arrester, busbar, cable terminal, incoming and outgoing line bushings, etc. into a whole through optimized design.

[0003] The GIS high-voltage switch housing is generally made of aluminum or steel. During its use, it is necessary to maintain good sealing to prevent the ingress of air or leakage of the insulating gas sulfur hexafluoride, effectively ensuring the safety of the GIS high-voltage switch and reducing the accident rate of partial discharge.

[0004] During the production process of GIS high-voltage switch housings, they are generally sealed and protected by sealing rings, and their overall sealing is maintained by sealing welding. However, due to the influence of various external factors during the assembly and welding process, the components of the housing may be offset during the assembly and welding process. The offset will not only cause mechanical damage to the sealing ring, but also reduce the accuracy of assembly and welding, reduce its sealing effect, and thus directly reduce the sealing maintenance effect of the GIS high-voltage switch housing, reducing its production quality and safety during subsequent use. Summary of the Invention

[0005] The present application aims to solve the problem of seal damage caused by offset during the assembly and welding of the housing. Compared with the prior art, the present application provides a GIS high-voltage switch housing that is easy to assemble. The housing comprises a housing, a housing cover mounted on the upper end of the housing, and a housing bottom mounted on the lower end of the housing. Sealing grooves are provided at both the upper and lower ends of the housing, and the inner wall of the sealing grooves is provided with multiple reserved guide cavities.

[0006] The shell cover and the shell bottom are both embedded with sealing rings on the inner wall near the shell sleeve. The outer ends of the sealing rings are fixedly connected with a plurality of guide blocks that match the reserved guide cavities, and the guide blocks and the reserved guide cavities form a sliding plug-in connection;

[0007] The outer ends of the shell sleeve and the shell cover on one side and the outer ends of the shell sleeve and the shell bottom on the other side are fixedly connected with guide rings, and a welding guide ring is formed between the two corresponding guide rings. Through the cooperation of the reserved guide cavity, the guide insert, the sealing ring and the guide ring, not only can the shell sleeve, the shell cover and the shell bottom be guided during the pre-assembly process, the assembly steps are simplified, and the pre-assembly position accuracy and efficiency are improved, but also the connection position of the shell sleeve, the shell cover and the shell bottom can be limited during the welding assembly process, and the weld can be effectively guided, further reducing the difficulty of the welding assembly process and improving its welding accuracy. While effectively avoiding mechanical damage to the sealing ring, it also improves the quality of the sealing welding, ensures its sealing effect, and ensures the maintenance of the sealing of the shell, thereby improving the production quality of the shell and the safety during subsequent use.

[0008] Furthermore, a detection cavity is opened in the guide block, and the detection cavity is filled with auxiliary gas. The setting of the auxiliary gas can effectively play an auxiliary detection effect, which can not only assist in the sealing test when the assembly is completed, but also monitor the sealing of the shell in real time during use, effectively ensuring the measurability of the sealing during the production and use of the shell, and can increase the connection strength between the sealing ring and the shell sleeve, shell cover, and shell bottom through the action of the guide block and the auxiliary gas, further improving the assembly sealing effect and production quality of the shell.

[0009] Furthermore, the outer end of the guide ring is fixedly connected to a plurality of auxiliary blocks corresponding to the guide inserts, and the inner ends of the auxiliary blocks are fixedly connected to detection guide columns. The inner ends of the detection guide columns extend into the corresponding shell sleeve, shell cover and shell bottom respectively, and cooperate with the guide inserts. The cooperation between the auxiliary blocks and the detection guide columns reduces the difficulty and cost of shell sleeve sealing detection, and can make the shell and the detection components form integrity and consistency, greatly improve the sealing detection efficiency and detection accuracy, simplify the assembly steps of the shell, reduce the complexity of the shell structure, and fully improve the economic benefits of the shell production process.

[0010] Furthermore, the outer end of the auxiliary block is detachably connected to a detection piece by a bolt, and the outer end of the detection piece is connected to a leakage detector by a wire. The detachable setting of the detection piece not only increases the high applicability of various sealing detection means during shell sealing detection and reduces the shell detection cost, but also can effectively avoid quality damage of the detection piece during the welding assembly process, ensure its subsequent detection accuracy, and can be recycled when the shell has sealing damage, reducing energy loss and cost loss.

[0011] Furthermore, the guide insert is conical near one end of the shell sleeve, and the bevel angle of the cone is 3°-10°. The reserved guide cavity is a straight groove, and the width of the reserved guide cavity is 0.9-0.95 times the maximum width of the guide insert. The taper setting not only increases the smoothness of the pre-assembly of the shell sleeve and the shell cover, the shell sleeve and the shell bottom, reduces the collision rate and mechanical damage, but also effectively reduces the assembly difficulty of the shell, promotes its automated assembly needs, and effectively ensures the limiting effect of the cooperation between the guide insert and the reserved guide cavity through size restrictions, reducing the generation of offset.

[0012] Furthermore, the end of the guide insert away from the shell is cylindrical or rectangular, and the inner walls of the shell cover and the shell bottom are provided with embedding grooves that match the end of the guide insert away from the shell, ensuring the connection stability of the shell cover, shell bottom and sealing ring during pre-assembly.

[0013] Furthermore, the guide insert is made of hot-melt adhesive material, which can be melted by heat during welding assembly, and its thermal fluidity is used to supplement the connection gap between the sealing ring and the shell sleeve, shell cover, and shell bottom, thereby improving the sealing effect of the sealing ring. It can also fix the position of the sealing ring, further avoiding the generation of offset, reducing the sealing damage of the shell during the assembly welding process, improving the accuracy of welding assembly, and ensuring the sealing life of the shell during subsequent use.

[0014] Furthermore, the guide ring is made of a thermosensitive color-changing material and can change color for guidance during the welding process. On the one hand, it further improves the accuracy of the weld guidance, improves the accuracy of the welding assembly, fully guarantees the sealing effect of the welding, and reduces welding damage. On the other hand, it can intuitively grasp the welding temperature according to the color change of the guide ring. While avoiding damage to the shell sleeve, shell cover and shell bottom caused by excessively high welding temperature, it can also effectively ensure sufficient heat dissipation after the shell welding assembly is completed, thereby improving the safety and quality assurance of the shell production process.

[0015] Furthermore, the height dimension of the guide insert is greater than or equal to the sum of the thickness dimensions of the two guide rings and the height dimension of the welding guide ring. By restricting the size of the guide insert and the position of the guide ring, the cooperation between the auxiliary block and the guide insert can be effectively guaranteed. While improving the welding assembly accuracy, ensuring the welding quality, and improving the sealing of the shell, it can also promote the sealing detection effect of the shell, improve the sealing detection accuracy, and effectively protect the production quality and safety of the shell.

[0016] Furthermore, the assembly method of the housing is as follows:

[0017] S1. Pre-assembly,

[0018] S11. The guide ring with the auxiliary block is embedded in the corresponding positions of the outer ends of the shell, the shell cover and the shell bottom;

[0019] S12. Then, the sealing ring with the guide insert is fixedly installed to the shell cover and the shell bottom, and the guide insert is embedded into the corresponding embedding groove;

[0020] S13. Then the bottom of the shell equipped with a sealing ring and a guide ring are respectively inserted into the lower end of the shell through the guide insert and the reserved guide cavity;

[0021] S14. Then the shell cover equipped with a sealing ring and a guide ring are respectively inserted into the upper end of the shell through the guide insert and the reserved guide cavity;

[0022] S2. Seal welding,

[0023] S21. Use welding equipment to seal the connection between the shell and the shell cover and the shell and the shell bottom;

[0024] S22. During the welding process, the weld can be guided according to the welding guide ring between the two corresponding guide rings;

[0025] S23. The welding temperature is absorbed by the guide insert through conduction, causing the guide insert to melt, leaking the auxiliary gas inside, and also melting and flowing, continuously entering the connection gaps between the sealing ring and the shell, shell cover, and shell bottom;

[0026] S3. Seal detection,

[0027] S31. Determine the degree of welding cooling completion based on the color of the guide ring;

[0028] S32. After the welding is completed and the cooling is completed, the detection piece is mounted on the auxiliary block and then the wires are connected to the leak detector to detect the sealing state of the shell connection at this time;

[0029] S33. After the sealing test is passed, the assembly is completed. Through the settings of pre-assembly, welding and sealing test, not only can the position guidance and offset limitation be carried out during the shell assembly process, reducing sealing damage and improving sealing quality, but it can also effectively simplify the assembly steps of the shell, realize the integrity and consistency of the body and detection components, further test and ensure the sealing effect of the shell, fully ensure the continuity of the shell sealing, and improve the economic benefits of the shell.

[0030] Compared with the existing technology, the advantages of this application are:

[0031] (1) By coordinating the reserved guide cavity, the guide insert, the sealing ring and the guide ring, not only can the shell sleeve, shell cover and shell bottom be guided during the pre-assembly process, the assembly steps can be simplified, and the pre-assembly position accuracy and efficiency can be improved, but also the connection position of the shell sleeve, shell cover and shell bottom can be limited during the welding assembly process, and the weld can be effectively guided, thereby further reducing the difficulty of the welding assembly process and improving its welding accuracy. While effectively avoiding mechanical damage to the sealing ring, the quality of the sealing welding is also improved, ensuring its sealing effect and the maintenance effect of the shell sealing, thereby improving the production quality of the shell and the safety of the subsequent use process.

[0032] (2) The setting of auxiliary gas can effectively play the role of auxiliary detection. It can not only assist in the sealing test when the assembly is completed, but also monitor the sealing of the shell in real time during use, effectively ensuring the measurability of the sealing during the production and use of the shell, and can increase the connection strength between the sealing ring and the shell sleeve, shell cover, and shell bottom through the action of the guiding block and the auxiliary gas, further improving the assembly sealing effect and production quality of the shell.

[0033] (3) The cooperation between the auxiliary block and the detection guide column reduces the difficulty and cost of shell seal detection, enables the shell and the detection component to form integrity and consistency, greatly improves the seal detection efficiency and detection accuracy, simplifies the assembly steps of the shell, reduces the complexity of the shell structure, and fully improves the economic benefits of the shell production process.

[0034] (4) The detachable setting of the detection piece not only increases the high applicability of various sealing detection methods during shell and sleeve sealing detection and reduces the shell and sleeve detection cost, but also can effectively avoid the quality damage of the detection piece during the welding assembly process, ensure its subsequent detection accuracy, and can be recycled when the shell produces sealing damage, reducing energy loss and cost loss.

[0035] (5) It can be melted by heat during welding assembly, and its thermal fluidity can be used to supplement the connection gap between the sealing ring and the shell sleeve, shell cover, and shell bottom, thereby improving the sealing effect of the sealing ring. It can also fix the position of the sealing ring, further avoiding the generation of offset, reducing the sealing damage of the shell during the assembly welding process, improving the accuracy of welding assembly, and ensuring the sealing life of the shell during subsequent use.

[0036] (6) Through the settings of pre-assembly, welding and sealing detection, not only can the position guidance and offset limitation be carried out during the shell assembly process, thereby reducing sealing damage and improving sealing quality, but the assembly steps of the shell can also be effectively simplified, and the body and detection components can be formed into integrity and consistency, and the sealing effect of the shell can be further detected and guaranteed, thereby fully ensuring the continuity of the shell sealing and improving the economic benefits of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is the axonometric drawing of this application;

[0038] Figure 2 This is a topological diagram of the assembly method of this application;

[0039] Figure 3 This is an exploded view of the application;

[0040] Figure 4 is an axonometric section view of this application;

[0041] Figure 5 This is a main cross-sectional view of the pre-assembly of this application;

[0042] Figure 6 This is the main cross-sectional view of the welding completed in this application;

[0043] Figure 7 This is a main cross-sectional view of the seal after damage in this application;

[0044] Figure 8 This is a flow chart of the assembly method of this application;

[0045] Figure 9 Axonometric drawing of the guide insert and auxiliary block for this application;

[0046] Figure 10 This is a top cross-sectional view of the guide insert and auxiliary block of the present application.

[0047] Description of the numbers in the figure:

[0048] 1 shell, 101 sealing groove, 102 reserved guide cavity, 2 shell cover, 3 shell bottom, 4 sealing ring, 5 guide insert, 501 auxiliary gas, 6 guide ring, 7 auxiliary block, 701 detection guide column. DETAILED DESCRIPTION

[0049] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of this application.

[0050] Example 1:

[0051] The present invention provides a GIS high voltage switch housing that is easy to assemble. Figure 1-10 The shell includes a shell 1, a shell cover 2 installed at the upper end of the shell 1 and a shell bottom 3 installed at the lower end of the shell 1. The upper and lower ends of the shell 1 are both provided with sealing grooves 101, and the inner wall of the sealing groove 101 is provided with a plurality of reserved guide cavities 102;

[0052] The shell cover 2 and the shell bottom 3 are both embedded with a sealing ring 4 on the inner wall of the side close to the shell 1. The outer end of the sealing ring 4 is fixedly connected with a plurality of guide inserts 5 that match the reserved guide cavity 102, and the guide inserts 5 and the reserved guide cavity 102 form a sliding plug-in connection;

[0053] The outer ends of the shell sleeve 1 and the shell cover 2 on one side, as well as the outer ends of the shell sleeve 1 and the shell bottom 3 on the other side, are fixedly connected with a guide ring 6, and a welding guide ring is formed between the two corresponding guide rings 6. Through the cooperation of the reserved guide cavity 102, the guide insert 5, the sealing ring 4 and the guide ring 6, not only can the shell sleeve 1, the shell cover 2 and the shell bottom 3 be guided during the pre-assembly process, the assembly steps can be simplified, and the pre-assembly position accuracy and efficiency can be improved, but also the connection position of the shell sleeve 1, the shell cover 2 and the shell bottom 3 can be limited during the welding assembly process, the weld can be effectively guided, the difficulty of the welding assembly process can be further reduced, and its welding accuracy can be improved. While effectively avoiding mechanical damage to the sealing ring 4, the quality of the sealing welding is improved, the sealing effect is guaranteed, and the sealing effect of the shell is guaranteed, thereby improving the production quality of the shell and the safety during subsequent use.

[0054] See also Figure 5-7 and Figure 9 、 Figure 10 A detection cavity is provided in the guide insert 5, and the detection cavity is filled with auxiliary gas 501. The setting of the auxiliary gas 501 can effectively play an auxiliary detection role, which can not only assist in the sealing test when the assembly is completed, but also monitor the sealing of the shell in real time during use, effectively ensuring the sealing testability of the shell during production and use, and can increase the connection strength of the sealing ring 4 and the shell sleeve 1, shell cover 2, and shell bottom 3 through the action of the guide insert 5 and the auxiliary gas 501, further improving the assembly sealing effect and production quality of the shell.

[0055] See also Figure 1-7 and Figure 9 、 Figure 10 The outer end of the guide ring 6 is also fixedly connected to a plurality of auxiliary blocks 7 corresponding to the guide inserts 5, and the inner end of the auxiliary block 7 is fixedly connected to a detection guide column 701. The inner ends of the detection guide columns 701 extend into the corresponding shell sleeve 1, shell cover 2 and shell bottom 3 respectively, and cooperate with the guide inserts 5. The cooperation between the auxiliary blocks 7 and the detection guide columns 701 reduces the difficulty and cost of the sealing detection of the shell sleeve 1, and can make the shell and the detection components form integrity and consistency, greatly improve the sealing detection efficiency and detection accuracy, simplify the assembly steps of the shell, reduce the complexity of the shell structure, and fully improve the economic benefits of the shell production process.

[0056] See also Figure 1-10The outer end of the auxiliary block 7 is detachably connected to a detection piece by a bolt, and the outer end of the detection piece is connected to a leakage detector through a wire. The detachable setting of the detection piece not only increases the high applicability of various sealing detection means during the sealing detection of the shell sleeve 1, reduces the detection cost of the shell sleeve 1, but also can effectively avoid the quality damage of the detection piece during the welding assembly process, ensure its subsequent detection accuracy, and can be recycled when the sealing damage occurs to the shell, reducing energy loss and cost loss.

[0057] See also Figure 1-7 and Figure 9 、 Figure 10 The guide insert 5 is conical at one end close to the shell 1, and the bevel angle of the cone is 3°-10°. The reserved guide cavity 102 is a straight groove, and the width of the reserved guide cavity 102 is 0.9-0.95 times the maximum width of the guide insert 5. The taper setting not only increases the smoothness of the pre-assembly of the shell 1 and the shell cover 2, the shell 1 and the shell bottom 3, reduces the collision rate and mechanical damage, but also effectively reduces the assembly difficulty of the shell, promotes its automated assembly needs, and effectively ensures the limiting effect of the cooperation between the guide insert 5 and the reserved guide cavity 102 through size restrictions, reducing the generation of offset.

[0058] See also Figure 1-7 and Figure 9 、 Figure 10 The guide insert 5 is cylindrical or rectangular at the end away from the shell sleeve 1, and the inner walls of the shell cover 2 and the shell bottom 3 are provided with an embedding groove that matches the end of the guide insert 5 away from the shell sleeve 1, ensuring the connection stability of the shell cover 2, the shell bottom 3 and the sealing ring 4 during pre-assembly.

[0059] See also Figure 1-7 and Figure 9 、 Figure 10 The guide insert 5 is made of hot-melt adhesive material, which can be melted by heat during welding and assembly. Its thermal fluidity is used to supplement the connection gap between the sealing ring 4 and the shell sleeve 1, shell cover 2, and shell bottom 3, thereby improving the sealing effect of the sealing ring 4. It can also fix the position of the sealing ring 4, further avoiding the generation of offset, reducing the sealing damage of the shell during the assembly and welding process, improving the accuracy of welding and assembly, and ensuring the sealing life of the shell during subsequent use.

[0060] See also Figure 1-7 and Figure 9 、 Figure 10The guide ring 6 is made of thermosensitive color-changing material and can change color to guide during the welding process. On the one hand, it further improves the accuracy of weld guidance, improves the accuracy of welding assembly, fully guarantees the sealing effect of welding, and reduces welding damage. On the other hand, it can intuitively grasp the welding temperature according to the color change of the guide ring 6. While avoiding damage to the shell sleeve 1, shell cover 2 and shell bottom 3 caused by excessive welding temperature, it can also effectively ensure sufficient heat dissipation after the shell welding assembly is completed, thereby improving the safety and quality assurance of the shell production process.

[0061] See also Figure 1-7 and Figure 9 、 Figure 10 The height of the guide insert 5 is greater than or equal to the sum of the thickness of the two guide rings 6 and the height of the welding guide ring. By limiting the size of the guide insert 5 and the position of the guide ring 6, the cooperation between the auxiliary block 7 and the guide insert 5 can be effectively guaranteed. While improving the welding assembly accuracy, ensuring the welding quality, and improving the sealing of the shell, it can also promote the sealing detection effect of the shell, improve the sealing detection accuracy, and effectively guarantee the production quality and safety of the shell.

[0062] See also Figure 2 and Figure 8 , the assembly method of the shell is:

[0063] S1. Pre-assembly,

[0064] S11. The guide ring 6 with the auxiliary block 7 is embedded in the corresponding positions of the outer ends of the shell 1, the shell cover 2 and the shell bottom 3;

[0065] S12. Then the sealing ring 4 with the guide insert 5 is fixedly installed to the shell cover 2 and the shell bottom 3, and the guide insert 5 is embedded into the corresponding embedding groove;

[0066] S13. Then the bottom of the shell 3 equipped with a sealing ring 4 and a guide ring 6 are inserted through the guide insert 5 and the reserved guide cavity 102 with the lower end of the shell 1, the reserved guide cavity 102 and the guide insert 5 sliding fit, limit and guide;

[0067] S14. Then the shell cover 2 equipped with a sealing ring 4 and a guide ring 6 are respectively inserted into the upper end of the shell 1 through the guide insert 5 and the reserved guide cavity 102, and the reserved guide cavity 102 and the guide insert 5 are slidably matched to limit and guide;

[0068] S2. Seal welding,

[0069] S21 using welding equipment to seal the connection between the shell 1 and the shell cover 2 and the shell 1 and the shell bottom 3;

[0070] S22. During the welding process, the weld can be guided according to the welding guide ring between the two corresponding guide rings 6. The guide ring 6 senses the welding temperature and changes color, and can match the color change of the guide ring 6 to guide the weld;

[0071] S23. The welding temperature is absorbed by the guide insert 5 through conduction, causing the guide insert 5 to melt. The auxiliary gas 501 leaking from the guide insert 5 also melts and flows into the gaps between the sealing ring 4 and the housing 1, the housing cover 2, and the housing bottom 3, respectively, to ensure the firmness of the sealing connection. After cooling, the sealing ring 4 can be fully connected with the housing 1, the housing cover 2, and the housing bottom 3, thereby improving the sealing effect of the sealing ring 4.

[0072] Here, the auxiliary gas 501 can be an insulating gas such as sulfur hexafluoride or directly a vacuum gas.

[0073] When the auxiliary gas 501 is an insulating gas such as sulfur hexafluoride, the detector detects the reserved guide cavity 102 and judges the sealing effect based on the voltage data. If the sealing ring 4 is damaged, it will not cause damage to the entire shell. If the welding part is damaged, external air will enter, causing the insulation in the shell to fail, so it needs to be maintained or replaced.

[0074] When the auxiliary gas 501 is in a vacuum state, the hot melting of the guide insert 5 causes the reserved guide cavity 102 to produce an adsorption effect on the sealing ring 4, causing the sealing ring 4 to produce a certain deformation and be stuck in the reserved guide cavity 102, thereby achieving the connection strength between the sealing ring 4 and the shell 1, the shell cover 2, and the shell bottom 3, ensuring the sealing effect. When testing it, the sealing effect is still judged based on the voltage data. If the sealing ring 4 is damaged, it will not cause damage to the entire shell. If the welding point is damaged, external air will enter, causing the insulation in the shell to fail, so it needs to be maintained or replaced.

[0075] S3. Seal detection,

[0076] S31. Determine the degree of welding cooling completion according to the color of the guide ring 6;

[0077] S32. After the welding is cooled, the detection piece is mounted on the auxiliary block 7, and then the wires are connected to the leak detector. The detection method of the detector can be set according to the existing electrochemical technology, high-voltage breakdown technology, infrared spectroscopy technology, and electron capture ECD principle. At this time, the sealing state of the shell connection is detected;

[0078] S33. After the sealing test is passed, the assembly is completed. Through the settings of pre-assembly, welding and sealing test, not only can the position guidance and offset limitation be carried out during the shell assembly process, reducing sealing damage and improving sealing quality, but it can also effectively simplify the assembly steps of the shell, realize the integrity and consistency of the body and detection components, further test and ensure the sealing effect of the shell, fully ensure the continuity of the shell sealing, and improve the economic benefits of the shell.

[0079] The above is only the best implementation method adopted by this application in combination with current actual needs, but the scope of protection of this application is not limited to this.

Claims

1. A GIS high-voltage switch housing that is easy to assemble, characterized in that: The housing comprises a shell (1), a shell cover (2) mounted on the upper end of the shell (1), and a shell bottom (3) mounted on the lower end of the shell (1); the upper and lower ends of the shell (1) are both provided with sealing grooves (101); and the inner wall of the sealing groove (101) is provided with a plurality of reserved guide cavities (102); The shell cover (2) and the shell bottom (3) are both embedded with a sealing ring (4) on the inner wall of the side close to the shell sleeve (1); the outer end of the sealing ring (4) is fixedly connected with a plurality of guide inserts (5) that match the reserved guide cavity (102), and the guide inserts (5) and the reserved guide cavity (102) form a sliding plug-in connection; The outer ends of the shell sleeve (1) and the shell cover (2) on the side close to each other, and the outer ends of the shell sleeve (1) and the shell bottom (3) on the side close to each other are both fixedly connected with guide rings (6), and a welding guide ring is formed between the two corresponding guide rings (6).

2. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: A detection cavity is provided in the guide insert (5), and the detection cavity is filled with auxiliary gas (501).

3. The GIS high-voltage switch housing that is easy to assemble according to claim 2, characterized in that: The outer end of the guide ring (6) is also fixedly connected to a plurality of auxiliary blocks (7) corresponding to the guide inserts (5); the inner end of the auxiliary block (7) is fixedly connected to a detection guide column (701); the inner end of the detection guide column (701) extends into the corresponding shell (1), shell cover (2) and shell bottom (3) respectively, and cooperates with the guide inserts (5).

4. The GIS high-voltage switch housing that is easy to assemble according to claim 3, characterized in that: The outer end of the auxiliary block (7) is detachably connected to a detection piece via a bolt, and the outer end of the detection piece is connected to a leakage detector via a wire.

5. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: The guide insert (5) is in a conical column shape at one end close to the shell (1), and the cone angle is 3°-10°. The reserved guide cavity (102) is a straight groove, and the width of the reserved guide cavity (102) is 0.9-0.95 times the maximum width of the guide insert (5).

6. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: The end of the guide insert (5) away from the shell (1) is cylindrical or rectangular, and the inner walls of the shell cover (2) and the shell bottom (3) are both provided with an embedding groove that matches the end of the guide insert (5) away from the shell (1).

7. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: The guide insert (5) is made of hot melt adhesive material.

8. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: The guide ring (6) is made of a thermosensitive color-changing material.

9. The GIS high-voltage switch housing that is easy to assemble according to claim 1, characterized in that: The height dimension of the guide insert (5) is greater than or equal to the sum of the thickness dimensions of the two guide rings (6) and the height dimension of the welding guide ring.

10. The GIS high-voltage switch housing that is easy to assemble according to claim 4, characterized in that: The assembly method of the shell is: S1. Pre-assembly, S11. The guide ring (6) with the auxiliary block (7) is embedded in the corresponding positions of the outer ends of the shell (1), the shell cover (2) and the shell bottom (3); S12. The sealing ring (4) with the guide insert (5) is then fixedly mounted to the housing cover (2) and the housing bottom (3), and the guide insert (5) is engaged with the corresponding groove; S13. Then, the shell bottom (3) equipped with the sealing ring (4) and the guide ring (6) is respectively inserted into the lower end of the shell (1) through the guide insert (5) and the reserved guide cavity (102); S14. Then, the shell cover (2) equipped with the sealing ring (4) and the guide ring (6) is respectively inserted into the upper end of the shell (1) through the guide insert (5) and the reserved guide cavity (102); S2. Seal welding, S21. Using welding equipment, the shell (1) and the shell cover (2), the shell (1) and the shell bottom (3) are sealed and welded; S22. During the welding process, the weld can be guided by the welding guide ring between the two corresponding guide rings (6); S23. The welding temperature is absorbed by the guide insert (5) through conduction, causing the guide insert (5) to produce a hot melt effect, leaking the auxiliary gas (501) inside it, and also hot melt flow, continuously entering the connection gaps between the sealing ring (4) and the shell (1), the shell cover (2) and the shell bottom (3); S3. Seal detection, S31. According to the color display of the guide ring (6), the degree of completion of welding cooling is judged; S32. After the welding is cooled, the detection piece is mounted on the auxiliary block (7), and then the wire is connected to the leak detector to detect the sealing state of the housing connection at this time; S33. After the sealing test is passed, the assembly is completed.

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