High-voltage-withstanding GIS (Gas Insulated Switchgear) shell

Abstract

The utility model relates to the technical field of GIS (gas insulated switchgear) shells, and discloses a high-voltage-resistant GIS shell, which comprises a main shell, the main shell comprises a base, the base is a semi-cylinder, two ends of the base are respectively provided with an end post and an interface flange, the interface flange is connected with a connecting cylinder, the connecting cylinder and the end post are both of a cylinder structure, and the connecting cylinder is connected with the main shell through a connecting rod. Two sliding covers are connected into the base in a sliding mode, each sliding cover is in a 1 / 4 cylinder shape, the two sliding covers extend out of the two side faces of the base respectively, the ends, away from the base, of the two sliding covers can be connected with each other, the two ends of each sliding cover are connected with a connecting cylinder and an end column in a sliding mode respectively, and a pressure relief valve is arranged on the end column. According to the device, the problems that the size of an opening of the shell is limited, and operation is inconvenient are solved, the operation space is enlarged through the structure that the shell slides towards the base to be stored, high pressure can be relieved through the pressure relief valve, and maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of GIS housing technology, and more specifically, to a high-pressure-resistant GIS housing. Background Technology

[0002] A GIS enclosure is a protective shell used to safeguard GIS equipment. Its primary function is to protect the equipment from external environmental interference and damage. GIS enclosures are widely used in industries such as power, telecommunications, transportation, and petrochemicals, and are an essential component for ensuring the normal operation of equipment.

[0003] Chinese utility model patent application number 202421375824.2 discloses a housing for a hydraulic spring operating mechanism of a high-voltage circuit breaker that can be inspected without removing the cover. The housing is configured as an inner shell and an outer shell, and the inner shell can slide axially and retract into the outer shell to facilitate maintenance without removing the cover. However, the opening of this axially sliding housing is limited, making it difficult to operate the equipment under the outer shell. Moreover, when the equipment is working, the housing is under high pressure, and the inner shell will be squeezed against the outer shell and is not easy to open. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-pressure GIS housing that is easier to maintain.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-pressure resistant GIS housing includes a main housing, which includes a base. The base is a semi-cylindrical shape, with end posts and interface flanges at both ends. A connecting cylinder is connected to the interface flange. Both the connecting cylinder and the end posts are cylindrical structures. Two sliding covers are slidably connected inside the base. Each sliding cover is a quarter-cylindrical shape and extends out of the two sides of the base. The ends of the two sliding covers facing away from the base can be connected to each other. The two ends of the sliding covers are slidably connected to the connecting cylinder and the end posts, respectively. A pressure relief valve is provided on the end post. End caps are connected to the ends of the connecting cylinder and the end posts facing away from the base.

[0007] The present invention is further configured such that: the base includes an inner liner and an outer liner, both of which are semi-cylindrical in shape, the inner liner and the outer liner are spaced apart, the bottom of the inner liner is provided with a reinforcing rib, the reinforcing rib is fixed on the outer liner, the sliding cover is disposed between the inner liner and the outer liner, and the two sliding covers are respectively disposed on both sides of the reinforcing rib.

[0008] The present invention is further configured such that: a locking block is provided on one side of the sliding cover inside the base, and a connecting plate is provided on one side of the sliding cover extending out of the base; the locking block is slidably connected to both the inner lining and the outer lining; the locking block is engaged with the edges of the inner lining and the outer lining; and the two connecting plates of the two sliding covers can be fitted together and fixed by bolts.

[0009] The present invention is further configured such that: a sliding groove is provided on the end of the connecting cylinder and the end post facing the sliding cover, the sliding groove is annular, and an extension plate is provided on both ends of the sliding cover, the two extension plates being slidably connected to the corresponding sliding groove.

[0010] The present invention is further configured such that: both ends of the inner liner and the outer liner are provided with sealing strips; the inner wall and the outer wall of the sliding cover are sealed to the sealing strips; when the two connecting plates are connected, the locking block abuts against the sealing strips; the bottom of the sliding groove is provided with a sealing strip; and the extension plate is sealed to the sealing strips.

[0011] The present invention is further configured such that: an air port is provided on the end post, a mounting post is provided on the side of the air port facing outward from the end post, a conical opening is provided on the side of the air port facing the mounting post, the pressure relief valve includes a plug, the plug can be plugged with the conical opening, a spring is connected to the end of the plug away from the conical opening, the other end of the spring is fixed on the end post, and a cap is threadedly connected to the mounting post.

[0012] The present invention is further configured such that: a through hole is radially opened on one side of the mounting column, and a pressure rod is provided in the through hole. The pressure rod is "√" shaped, and the long side of the pressure rod extends into the air inlet. The long side of the pressure rod is in contact with the inner wall of the plug and the air inlet. An axial receiving groove is opened on the outer wall of the mounting column, and the short side of the pressure rod is placed in the receiving groove. The short side of the pressure rod abuts against the inner side wall of the cover.

[0013] The advantages of this utility model are:

[0014] 1. The base of the main housing is a semi-cylindrical tube. Sliding covers are slidably connected to both sides of the base. The end of the sliding cover inside the base can be engaged with the base, and the end of the sliding cover outside the base is provided with a connecting plate. The connecting plates of the two sliding covers can abut each other and be connected by bolts to achieve the sealing of the housing. During maintenance, the bolts on the sliding covers can be opened, and the sliding covers on both sides can be pushed into the base circumferentially to expose the internal equipment. The base can be set to a large area to basically cover the internal equipment of the housing, which facilitates maintenance.

[0015] 2. A pressure relief valve is installed on the main housing. The pressure relief valve is a one-way valve structure consisting of a plug and a spring. When the pressure inside the housing is high, the plug abuts against the air port and no leakage occurs. The cover on the outer mounting post prevents accidental contact with the plug and leakage. At the same time, a pressure rod is installed on the mounting post. When the cover is pressed on the mounting post, the short side of the pressure rod is compressed, while the long side of the pressure rod is on the plug without applying force to the plug. When the cover is removed, the pressure rod can be easily rotated, causing the long side of the pressure rod to push the plug downward to release the air inside the housing, making it easy to open the housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0017] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0018] Figure 3 For along Figure 1 The BB line cross-section shown;

[0019] Figure 4 for Figure 2 Enlarged view of section C shown;

[0020] Figure 5 This is a schematic diagram of the sliding cover structure of this utility model;

[0021] In the diagram: 1. Main housing; 11. Base; 111. Inner liner; 112. Outer liner; 113. Reinforcing rib; 12. End post; 13. Interface flange; 14. Air port; 15. Mounting post; 16. Through hole; 17. Receiving groove; 2. End cap; 3. Connecting cylinder; 4. Sliding cover; 41. Locking block; 42. Extension plate; 43. Connecting plate; 5. Sealing strip; 6. Pressure relief valve; 61. Plug; 62. Spring; 63. Pressure rod; 64. Cover; 7. Sliding groove. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art described in this application.

[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A high-pressure resistant GIS housing includes a main housing 1, which includes a base 11. The base 11 is a semi-cylindrical structure, and the main body of the equipment is installed inside the base 11. The two ends of the base 11 are respectively provided with end posts 12 and interface flanges 13. A connecting cylinder 3 is connected to the interface flange 13. Both the connecting cylinder 3 and the end posts 12 are cylindrical structures. The ends of the connecting cylinder 3 and the end posts 12 opposite to the base 11 are connected with end caps 2. Two sliding covers 4 are slidably connected inside the base 11. The sliding covers 4 are 1 / 4 cylindrical and extend from the two sides of the base 11. The ends of the two sliding covers 4 opposite to the base 11 can be connected to each other. The two ends of the sliding covers 4 are slidably connected to the connecting cylinder 3 and the end posts 12, respectively. When the two sliding covers 4 are connected, a complete housing structure is formed, which can be filled with high-pressure insulating gas to ensure the normal operation of the equipment. When the two sliding covers 4 are separated and pushed into the base 11, the main body of the equipment can be exposed, which facilitates maintenance.

[0027] A pressure relief valve 6 is installed on the end column 12. When the equipment is running, there will be no leakage at the pressure relief valve 6. When it is necessary to open the shell, the internal high pressure can be released through the pressure relief valve 6, which makes it easier to open the shell.

[0028] The base 11 includes an inner liner 111 and an outer liner 112. Both the inner liner 111 and the outer liner 112 are semi-cylindrical. The inner liner 111 and the outer liner 112 are spaced apart. The bottom of the inner liner 111 is provided with a reinforcing rib 113, which is fixed to the outer liner 112. The sliding cover 4 is located between the inner liner 111 and the outer liner 112. The two sliding covers 4 are located on both sides of the reinforcing rib 113. When the shell is opened, the two sliding covers 4 can be retracted into both sides of the reinforcing rib 113.

[0029] The sliding cover 4 has a locking block 41 on one side inside the base 11. When the sliding cover 4 is pulled outward, the locking block 41 can prevent the sliding cover 4 from falling off the base 11. The sliding cover 4 has a connecting plate 43 on one side extending out of the base 11. The locking block 41 is slidably connected to the inner liner 111 and the outer liner 112. The locking block 41 is engaged with the edges of the inner liner 111 and the outer liner 112. The two connecting plates 43 of the two sliding covers 4 can fit together and be fixed by bolts, thereby realizing the closure of the shell.

[0030] The connecting cylinder 3 and the end post 12 are both provided with a sliding groove 7 facing the sliding cover 4. The sliding groove 7 is annular. Both ends of the sliding cover 4 are provided with extension plates 42. The two extension plates 42 are slidably connected to the corresponding sliding groove 7. A sealing strip 5 is provided at the bottom of the sliding groove 7. The extension plate 42 is sealed with the sealing strip 5.

[0031] After the main body of the internal equipment is installed, the shell is fixed. At this time, the two sliding covers 4 are pushed into the base 11 from the side of the interface flange 13 until the sliding cover 4 abuts against the end post 12. The extension plate 42 on the right is inserted into the slide groove 7 on the end post 12, and the extension plate 42 on the right abuts against the sealing strip 5 in the corresponding slide groove 7.

[0032] Next, insert the sliding groove 7 on the connecting cylinder 3 into the left extension plate 42 until the connecting cylinder 3 abuts against the interface flange 13. Then connect the connecting cylinder 3 and the interface flange 13 with bolts. Finally, install the end caps 2 on both sides to complete the overall installation.

[0033] Both ends of the inner liner 111 and the outer liner 112 are provided with sealing strips 5. The inner and outer walls of the sliding cover 4 are sealed to the sealing strips 5. When the two connecting plates 43 are connected, the locking block 41 abuts against the sealing strips 5, ensuring the sealing of the shell.

[0034] An air port 14 is provided on the end post 12. A mounting post 15 is provided on the side of the air port 14 facing the outside of the end post 12. A conical opening is provided on the side of the air port 14 facing the mounting post 15. The pressure relief valve 6 includes a plug 61, which can be plugged into the conical opening. A spring 62 is connected to the end of the plug 61 away from the conical opening. The other end of the spring 62 is fixed to the end post 12. A cap 64 is threaded onto the mounting post 15. The plug 61 and the spring 62 form a one-way valve structure. When the inside of the housing is filled with high-pressure insulating gas, the plug 61 is squeezed onto the air port 14, thereby preventing the internal gas from leaking out.

[0035] The cap 64 prevents the plug 61 from coming into contact with the outside world, thereby preventing accidental contact with the plug 61 and causing internal gas leakage.

[0036] A through hole 16 is radially opened on one side of the mounting post 15. A pressure rod 63 is installed in the through hole 16. The pressure rod 63 is "√" shaped. The long side of the pressure rod 63 extends into the air inlet 14. The long side of the pressure rod 63 is in contact with the plug 61 and the inner wall of the air inlet 14. When the long side swings, it can push the plug 61 from the connection between the plug 61 and the air inlet 14, making it easier to create a gap between the plug 61 and the air inlet 14. A receiving groove 17 is axially opened on the outer wall of the mounting post 15. The short side of the pressure rod 63 is placed in the receiving groove 17. The short side of the pressure rod 63 abuts against the inner side wall of the cover 64.

[0037] When the cap 64 presses onto the mounting post 15, the pressure rod 63 is held in place by the cap 64. At this time, the pressure rod 63 is fixed on the mounting post 15 and does not exert force on the plug 61.

[0038] When the cover 64 is opened and the short side of the pressure rod 63 is pulled outward, the long side of the pressure rod 63 swings downward, causing the plug 61 to be displaced, creating a gap between the plug 61 and the air port 14. The gas inside the housing is discharged through the gap, thus relieving pressure and facilitating the disassembly of the housing.

[0039] Specifically, the base 11 of the main housing 1 is a semi-cylindrical tube. Sliding covers 4 are slidably connected to both sides of the base 11. One end of the sliding cover 4 inside the base 11 can be engaged with the base 11. A connecting plate 43 is provided at the other end of the sliding cover 4 outside the base 11. The connecting plates 43 of the two sliding covers 4 can abut against each other and be connected by bolts, thereby achieving the sealing of the housing. During maintenance, the bolts on the sliding cover 4 can be opened, and the sliding covers 4 on both sides can be pushed into the base 11 circumferentially to expose the internal equipment. The base 11 can be set to a large area, which can basically cover the internal equipment of the housing, making maintenance convenient.

[0040] The main housing 1 is equipped with a pressure relief valve 6, which is a one-way valve structure consisting of a plug 61 and a spring 62. When the pressure inside the housing is high, the plug 61 abuts against the air port 14 and no leakage occurs. The cover 64 on the outer mounting post 15 prevents accidental contact with the plug 61 and leakage. At the same time, a pressure rod 63 is provided on the mounting post 15. When the cover 64 is pressed on the mounting post 15, the short side of the pressure rod 63 is compressed, while the long side of the pressure rod 63 is on the plug 61 without applying force to the plug 61. When the cover 64 is removed, the pressure rod 63 can be easily rotated, causing the long side of the pressure rod 63 to push the plug 61 downward, thus releasing the air inside the housing and facilitating the opening of the housing.

[0041] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-pressure-resistant GIS housing, comprising a main housing (1), characterized in that: The main housing (1) includes a base (11), which is a semi-cylinder. The two ends of the base (11) are respectively provided with end posts (12) and interface flanges (13). A connecting cylinder (3) is connected to the interface flange (13). Both the connecting cylinder (3) and the end posts (12) are cylindrical structures. Two sliding covers (4) are slidably connected inside the base (11). The sliding covers (4) are 1 / 4 cylindrical. The two sliding covers (4) extend out of the two sides of the base (11). The ends of the two sliding covers (4) away from the base (11) can be connected to each other. The two ends of the sliding covers (4) are slidably connected to the connecting cylinder (3) and the end posts (12). A pressure relief valve (6) is provided on the end posts (12). The ends of the connecting cylinder (3) and the end posts (12) away from the base (11) are both connected with end caps (2).

2. The high-pressure-resistant GIS housing according to claim 1, characterized in that: The base (11) includes an inner liner (111) and an outer liner (112). Both the inner liner (111) and the outer liner (112) are semi-cylindrical. The inner liner (111) and the outer liner (112) are spaced apart. The bottom of the inner liner (111) is provided with a reinforcing rib (113). The reinforcing rib (113) is fixed on the outer liner (112). The sliding cover (4) is disposed between the inner liner (111) and the outer liner (112). The two sliding covers (4) are respectively disposed on both sides of the reinforcing rib (113).

3. A high-pressure-resistant GIS housing according to claim 2, characterized in that: The sliding cover (4) has a locking block (41) on one side inside the base (11). The sliding cover (4) extends out of the base (11) and has a connecting plate (43) on one side. The locking block (41) is slidably connected to the inner lining (111) and the outer lining (112). The locking block (41) is engaged with the edges of the inner lining (111) and the outer lining (112). The two connecting plates (43) of the two sliding covers (4) can fit together and be fixed by bolts.

4. A high-pressure-resistant GIS housing according to claim 3, characterized in that: The connecting cylinder (3) and the end post (12) are both provided with a sliding groove (7) facing the sliding cover (4). The sliding groove (7) is annular. Both ends of the sliding cover (4) are provided with extension plates (42). The two extension plates (42) are slidably connected to the corresponding sliding groove (7).

5. A high-pressure-resistant GIS housing according to claim 4, characterized in that: Both ends of the inner liner (111) and the outer liner (112) are provided with sealing strips (5). The inner wall and the outer wall of the sliding cover (4) are sealed to the sealing strips (5). When the two connecting plates (43) are connected, the locking block (41) abuts against the sealing strips (5). The bottom of the groove (7) is provided with sealing strips (5). The extension plate (42) is sealed to the sealing strips (5).

6. A high-pressure-resistant GIS housing according to claim 1, characterized in that: An air port (14) is provided on the end post (12). An installation post (15) is provided on the side of the air port (14) facing the outside of the end post (12). A conical opening is provided on the side of the air port (14) facing the installation post (15). The pressure relief valve (6) includes a plug (61). The plug (61) can be plugged into the conical opening. A spring (62) is connected to one end of the plug (61) away from the conical opening. The other end of the spring (62) is fixed on the end post (12). A cap (64) is threaded onto the installation post (15).

7. A high-pressure-resistant GIS housing according to claim 6, characterized in that: A through hole (16) is provided radially on one side of the mounting post (15). A pressure rod (63) is provided in the through hole (16). The pressure rod (63) is "√" shaped. The long side of the pressure rod (63) extends into the air inlet (14). The long side of the pressure rod (63) is connected to the inner wall of the plug (61) and the air inlet (14). An axial receiving groove (17) is provided on the outer wall of the mounting post (15). The short side of the pressure rod (63) is placed in the receiving groove (17). The short side of the pressure rod (63) abuts against the inner side wall of the cover (64).

Images