GIS high-voltage switch shell with safety protection structure

Abstract

This application discloses a GIS high-voltage switch housing with a safety protection structure for use in the field of high-voltage switches. This switch housing, through the inclusion of a sealing protection mechanism, allows the mechanism to monitor the sealing performance of the main housing. If a problem occurs in the sealing performance of the main housing, leading to SF6 failure... 6 When a gas leak occurs, the trigger board will activate the leak detection switch, causing the alert control module to activate the alarm and alert the staff. This allows staff to detect the gas leak in a timely manner and prompts them to conduct appropriate inspections and maintenance. This provides a protective effect, reducing the impact of problems with the casing's sealing. Furthermore, through the installation of gas sensors and gas analysis modules, when the leak detection switch is triggered, the sealing protection mechanism will also perform a self-check on its internal sealing to prevent false alarms. This avoids misleading staff and greatly improves practicality.

Description

A GIS high-voltage switch housing with a safety protection structure Technical Field

[0001] This application relates to the field of high-voltage switches, and more specifically, to a GIS high-voltage switch housing with a safety protection structure. Background Technology

[0002] GIS high-voltage switchgear refers to switchgear that is filled with SF6 gas at a certain pressure inside a metal casing. It has advantages such as small footprint, unaffected by the external environment, high operational reliability, long maintenance cycle, and low workload of operation and maintenance.

[0003] The housing of GIS high-voltage switchgear needs to have good sealing performance to prevent internal SF6 gas leakage. During long-term use, due to problems such as aging of the seals, the sealing performance of various connections will inevitably be compromised, leading to SF6 gas leakage.

[0004] However, existing GIS high-voltage switch housings cannot promptly alert staff when sealing issues arise, making it difficult for them to detect SF6 gas leaks and thus hindering timely maintenance. Therefore, we propose a GIS high-voltage switch housing with a safety protection structure. Summary of the Invention

[0005] The purpose of this application is to solve the problem that it is difficult for personnel to detect in a timely manner when the sealing of the GIS high-voltage switch housing is compromised. Compared with the prior art, this application provides a GIS high-voltage switch housing with a safety protection structure, including a main housing. A sealing protection mechanism is provided on the main housing. The sealing protection mechanism includes a protective regulating cylinder embedded through the outer wall of the top of the main housing. The bottom end of the protective regulating cylinder is open. A sealing flap is slidably and sealingly connected to the protective regulating cylinder. Connecting blocks are fixedly connected to the inner walls on both sides of the protective regulating cylinder. An elastic rope is fixedly connected between the connecting blocks and the sealing flap. A damping magnet is movably placed at the top of the protective regulating cylinder. A damping iron block, made of ferromagnetic material, is fixedly connected to the top of the sealing flap. The elastic rope is under tension. The inner wall of the protective regulating cylinder is fixedly installed with... The system includes a leak detection switch. An L-shaped trigger plate is fixedly connected to the top of the sealing flap. A connecting block is located below the sealing flap, and the leak detection switch is located above the sealing flap and below the trigger plate. An alarm is fixedly installed at the top of the protective regulating cylinder. A protection controller is fixedly installed on the inner wall of the top of the protective regulating cylinder. The protection controller contains a leak analysis module and an alarm control module. The leak detection switch is electrically connected to the leak analysis module, the leak analysis module is electrically connected to the alarm control module, and the alarm control module is electrically connected to the alarm. This allows the system to trigger the leak detection switch when the main casing leaks SF6 gas due to a problem with its sealing. This causes the alarm control module to activate the alarm, alerting the staff and enabling them to detect the gas leak in a timely manner and perform appropriate inspections and maintenance.

[0006] Optionally, a gas sensor is fixedly installed on the inner wall of the top of the protective regulating cylinder, and a gas analysis module is also provided in the protection controller. The gas sensor is electrically connected to the gas analysis module, and the gas analysis module is electrically connected to the reminder control module. When the alarm switch is triggered, the security protection mechanism will also perform a self-check on its internal sealing to prevent misjudgment, thereby avoiding misleading the staff and greatly improving practicality.

[0007] Optionally, a thermal protection component is installed inside the protective regulating cylinder. The thermal protection component includes a guide rod and a thermally contacting elastic bladder located above the guide rod. The guide rod passes through the damping iron block and the sealing flap. The top of the guide rod passes through the outer wall of the thermally contacting elastic bladder and extends into the interior of the thermally contacting elastic bladder. The thermal protection component also includes a thermal wake-up switch fixedly installed on the inner wall of the top of the protective regulating cylinder. The protection controller is also equipped with an overheat analysis module. The thermal wake-up switch is electrically connected to the overheat analysis module, and the overheat analysis module is electrically connected to the reminder control module. The thermal wake-up switch is located directly above the thermally contacting elastic bladder, which is filled with air and made of elastic material. The guide rod is made of thermally conductive material. When the temperature inside the main housing is too high, the thermally contacting elastic bladder will trigger the thermal wake-up switch, causing the reminder to start, thereby reminding the staff and prompting them to take appropriate cooling measures in time.

[0008] Optionally, a limit block is fixedly installed on the inner wall of the protective regulating cylinder. The limit block is located above the sealing flap, and the distance between the limit block and the sealing flap is less than the distance between the thermally contacted elastic ball and the thermal wake-up switch. The limit block can play a limiting role to prevent the thermal wake-up switch from being accidentally triggered when SF6 gas is filled into the main housing.

[0009] Optionally, the alarm can emit at least three different alarm sounds, so that the alarm will emit different alarm sounds in different situations, making it easier for staff to distinguish and differentiate. A sealing ring is provided at the connection between the protective regulating cylinder and the main housing, which can enhance the sealing of the connection between the protective regulating cylinder and the main housing.

[0010] Optionally, a magnetic shielding storage box matching the suppressor magnet is fixedly installed on the top of the protective adjustment cylinder. The top of the magnetic shielding storage box is set to be open. The magnetic shielding storage box is made of magnetic shielding material, so that after the staff removes the suppressor magnet, the suppressor magnet can be stored in the magnetic shielding storage box. This will not affect the triggering of the detection and protection mechanism, and will facilitate the subsequent use of the suppressor magnet.

[0011] Optionally, multiple heat dissipation rods are embedded through the outer wall of the main housing. The heat dissipation rods are made of thermally conductive material and can enhance the heat dissipation function of the main housing.

[0012] Compared to existing technologies, the advantages of this application are:

[0013] (1) By setting up a security protection mechanism, this application enables the security protection mechanism to monitor the sealing performance of the main shell. When the sealing performance of the main shell is compromised and SF6 gas leaks, the trigger board will trigger the alarm switch, causing the alarm control module to start the alarm to remind the staff. This allows the staff to detect the gas leak in time and prompts them to carry out the corresponding inspection and maintenance in time, thereby achieving a protective effect and reducing the impact of the shell sealing problem.

[0014] (2) By setting up gas sensors and gas analysis modules, when the leakage protection switch is triggered, the sealing protection mechanism will also perform a self-check on its internal sealing to prevent misjudgment, thereby avoiding staff being misled and greatly improving practicality.

[0015] (3) By setting up the thermal protection component, when the temperature inside the main housing is too high, the thermal contact elastic ball will trigger the thermal wake-up switch, causing the reminder to start, thereby reminding the staff to take appropriate cooling measures in time, preventing damage to the high voltage switchgear, and improving its practicality.

[0016] (4) A limit block is fixedly installed on the inner wall of the protective regulating cylinder. The limit block is above the sealing flap. The distance between the limit block and the sealing flap is less than the distance between the thermal contact elastic ball and the thermal wake-up switch. The limit block can play a limiting role to prevent the thermal wake-up switch from being accidentally triggered when SF6 gas is filled into the main housing.

[0017] (5) The reminder can emit at least three different prompts, so that the reminder will emit different prompts in different situations, making it easier for staff to distinguish and differentiate. A sealing ring is provided at the connection between the protective regulating cylinder and the main housing, which can enhance the sealing of the connection between the protective regulating cylinder and the main housing.

[0018] (6) A magnetic shielding storage box matching the suppressor magnet is fixedly installed at the top of the protective adjustment cylinder. The top of the magnetic shielding storage box is set to be open. The magnetic shielding storage box is made of magnetic shielding material, so that after the staff removes the suppressor magnet, the suppressor magnet can be stored in the magnetic shielding storage box. This will not affect the triggering of the detection and protection mechanism, and will facilitate the subsequent use of the suppressor magnet.

[0019] (7) Multiple heat dissipation rods are embedded through the outer wall of the main shell. The heat dissipation rods are made of thermally conductive material and can enhance the heat dissipation function of the main shell. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of this application;

[0021] Figure 2 is a three-dimensional structural diagram of this application from another angle;

[0022] Figure 3 is a cross-sectional structural diagram of the main shell of this application;

[0023] Figure 4 is a cross-sectional structural diagram of the protective regulating cylinder in this application;

[0024] Figure 5 is an enlarged structural schematic diagram of point A in Figure 4 of this application;

[0025] Figure 6 is a system structure block diagram of the protection controller of this application;

[0026] Figure 7 is a schematic diagram of the structure of the protective regulating cylinder after SF6 gas is filled into the main housing and the anti-contact magnet is removed in this application.

[0027] Figure 8 is a schematic diagram of the pictographic changes at the protective regulating cylinder when the sealing of the main housing in this application is compromised;

[0028] Figure 9 is a cross-sectional structural diagram of the thermally contacted elastic balloon of this application;

[0029] Figure 10 is a schematic diagram of the pictographic change at the protective regulating cylinder when the temperature inside the main housing is too high in this application.

[0030] Explanation of the labels in the diagram:

[0031] 101. Main housing; 102. Heat sink; 201. Protective adjustment cylinder; 202. Sealing flap; 203. Connecting block; 204. Elastic rope; 205. Inhibiting magnet; 206. Inhibiting iron block; 207. Relief switch; 208. Trigger plate; 209. Reminder; 210. Gas sensor; 211. Limit block; 212. Sealing ring; 213. Magnetic shielding storage box; 003. Protection controller; 401. Guide rod; 402. Thermal elastic ball; 403. Thermal wake-up switch. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] Example 1:

[0034] This application discloses a GIS high-voltage switch housing with a safety protection structure, as shown in Figures 1-6. It includes a main housing 101, with multiple heat dissipation rods 102 embedded through the outer wall of the main housing 101. The heat dissipation rods 102 are made of thermally conductive material and enhance the heat dissipation function of the main housing 101. A security protection mechanism is provided on the main housing 101, including a protective adjusting cylinder 201 embedded through the top outer wall of the main housing 101. The bottom end of the protective adjusting cylinder 201 is open, and a sealing flap 202 is slidably and sealingly connected to it inside the protective adjusting cylinder 201. Connecting blocks 203 are fixedly connected to the inner walls on both sides of the protective adjusting cylinder 201. An elastic rope 204 is fixedly connected between the connecting blocks 203 and the sealing flap 202. An anti-touch magnet 205 is movably placed at the top of the protective adjusting cylinder 201. A damping block 206 is fixedly connected to the top of the protective regulating cylinder 202. The damping block 206 is made of ferromagnetic material. The elastic rope 204 is in a stretched state. A waking switch 207 is fixedly installed on the inner wall of the protective regulating cylinder 201. An L-shaped trigger plate 208 is fixedly connected to the top of the sealing flap 202. The connecting block 203 is located below the sealing flap 202. The waking switch 207 is located above the sealing flap 202 and below the trigger plate 208. A reminder 209 is fixedly installed at the top of the protective regulating cylinder 201. A protection controller 003 is fixedly installed on the inner wall of the top of the protective regulating cylinder 201. The protection controller 003 is equipped with a leakage analysis module and a reminder control module. The waking switch 207 is electrically connected to the leakage analysis module. The leakage analysis module is electrically connected to the reminder control module. The reminder control module is electrically connected to the reminder 209.

[0035] Please refer to Figures 1-8. The magnetic attraction between the damping magnet 205 and the damping block 206 will cause the sealing flap 202 to have an upward tendency, causing the elastic rope 204 to be in a stretched state. After the connection and installation are completed, the main housing 101 is sealed and filled with SF6 gas at a certain pressure. During the gas filling process, the sealing flap 202 will move upward a certain distance under the action of gas pressure, causing the elastic rope 204 to be further stretched. At this time, as shown in Figure 7, the damping magnet 205 is removed, causing the elastic rope 204 to rebound to a certain extent, causing the sealing flap 202 to move downward a certain distance. However, the trigger plate 208 will not trigger the leakage switch 207. After long-term use, if the sealing at the connection point is compromised, that is, if the main housing 101 leaks, the leakage of SF6 gas will cause the gas pressure inside the main housing 101 to decrease, causing the elastic rope 204 to further rebound. The trigger plate 208 is activated, causing the sealing flap 202 to move downwards, as shown in Figure 8. This causes the trigger plate 208 to press and trigger the alarm switch 207. Once triggered, the alarm switch 207 sends a signal to the leakage analysis module. Upon receiving the signal, the leakage analysis module feeds this information back to the reminder control module, which then activates the reminder device 209 to alert the staff. Therefore, through the setting of the sealing protection mechanism, the sealing protection mechanism can monitor the sealing performance of the main housing 101. When the sealing performance of the main housing 101 fails, causing SF6 gas to leak, the trigger plate 208 will trigger the alarm switch 207, causing the reminder control module to activate the reminder device 209 to alert the staff. This allows the staff to detect the gas leak in time, prompting them to conduct timely inspections and maintenance, thereby achieving a protective effect and reducing the impact of sealing performance problems.

[0036] Please refer to Figure 3. The reminder 209 can emit at least three different prompts, so that the reminder 209 will emit different prompts in different situations, making it easier for staff to distinguish and differentiate. A sealing ring 212 is provided at the connection between the protective adjusting cylinder 201 and the main housing 101. The sealing ring 212 can enhance the sealing of the connection between the protective adjusting cylinder 201 and the main housing 101.

[0037] Please refer to Figures 4 and 6. A gas sensor 210 is fixedly installed on the inner wall of the top of the protective regulating cylinder 201. A gas analysis module is also provided in the protection controller 003. The gas sensor 210 is electrically connected to the gas analysis module, and the gas analysis module is electrically connected to the alarm control module. If there is a problem with the sealing at the connection between the sealing flap 202 and the protective regulating cylinder 201, it may cause the trigger plate 208 to trigger the alarm switch 207. When the leakage analysis module receives the signal from the alarm switch 207, it will also feed this information back to the gas analysis module, causing the gas analysis module to activate the gas sensor 210. After the gas sensor 210 is activated, it will detect the air above the sealing flap 202 to detect whether there is SF6 gas in the air. The detection result of the gas sensor 210 will be fed back to the gas analysis module. The gas analysis module will analyze the detection result. If there is no SF6 gas in the air above the sealing flap 202... The presence of SF6 gas indicates that the seal at the connection between the protective regulating cylinder 201 and the sealing flap 202 is intact. Conversely, the presence of SF6 gas indicates a seal problem at the connection between the protective regulating cylinder 201 and the sealing flap 202. The gas analysis module will feed back the analysis results to the alert control module. Regardless of the analysis results, the alert control module will activate the alert 209. However, the alert control module will emit different alert sounds based on the analysis results, allowing staff to distinguish whether the problem lies in the seal of the main housing 101 or the internal seal of the security protection mechanism. Therefore, through the settings of the gas sensor 210 and the gas analysis module, when the alarm switch 207 is triggered, the security protection mechanism will also perform a self-check of its internal seal to prevent misjudgment and avoid misleading staff, greatly improving practicality.

[0038] Please refer to Figure 1-2. A magnetic shielding storage box 213 matching the damping magnet 205 is fixedly installed at the top of the protective adjustment cylinder 201. The top of the magnetic shielding storage box 213 is open and made of magnetic shielding material. After receiving the reminder from the reminder device 209, the staff can place the damping magnet 205 back on the top of the protective adjustment cylinder 201 to release the trigger plate 208 from triggering the wake-up switch 207. After the staff has completed the maintenance of the main housing 101 and refilled it with SF6 gas, they can move the damping magnet 205 again to restore the protection and reminder functions of the security protection mechanism. Therefore, after the staff removes the damping magnet 205, it can be stored in the magnetic shielding storage box 213, which will not affect the triggering of the security protection mechanism and will facilitate the subsequent use of the damping magnet 205.

[0039] Please refer to Figures 4-6 and 9-10. A thermal protection assembly is installed inside the protective regulating cylinder 201. This assembly includes a guide rod 401 and a thermally contacting elastic balloon 402 located above the guide rod 401. The guide rod 401 penetrates the contact block 206 and the sealing flap 202. The top end of the guide rod 401 penetrates the outer wall of the thermally contacting elastic balloon 402 and extends into its interior. The thermal protection assembly also includes a thermal alarm switch 403 fixedly installed on the inner wall of the top end of the protective regulating cylinder 201. The protection controller 003 also includes an overheat analyzer. The thermal wake-up switch 403 is electrically connected to the overheat analysis module, which in turn is electrically connected to the alert control module. The thermal wake-up switch 403 is located directly above the thermally contacted elastic bulb 402, which is filled with air and made of an elastic material. The contact rod 401 is made of a thermally conductive material. High-voltage switchgear generates heat during operation. If this heat cannot be dissipated in time, the internal temperature of the main housing 101 will rise. When the temperature inside the main housing 101 rises to a certain level, it will affect the operation of the high-voltage switchgear. This can easily damage the switching equipment, requiring timely intervention from staff to cool it down. The increased internal temperature of the main housing 101 leads to increased air pressure within it, causing the sealing flap 202 to move the contact block 206, the guide rod 401, and the thermal contact elastic bulb 402 upwards. Simultaneously, heat from the main housing 101 is transferred to the thermal contact elastic bulb 402 via the guide rod 401, causing it to expand. When the temperature inside the main housing 101 becomes too high, the thermal contact elastic bulb 402 triggers the thermal wake-up switch 403. When the wake-up switch 403 is triggered, it sends a signal to the overheat analysis module. Upon receiving the signal, the overheat analysis module feeds this information back to the reminder control module, causing the reminder control module to activate the reminder device 209 to alert the staff. Therefore, through the setting of the thermal protection component, when the temperature inside the main housing 101 is too high, the thermally triggered elastic balloon 402 will trigger the thermal wake-up switch 403, causing the reminder device 209 to activate, thereby alerting the staff and prompting them to take appropriate cooling measures in a timely manner to prevent damage to the high-voltage switchgear and improve its practicality.

[0040] Please refer to Figure 4. A limiting block 211 is fixedly installed on the inner wall of the protective regulating cylinder 201. The limiting block 211 is above the sealing flap 202. The distance between the limiting block 211 and the sealing flap 202 is less than the distance between the thermally contacted elastic balloon 402 and the thermally activated switch 403. When SF6 gas is filled into the main housing 101, the sealing flap 202 will move upward. The limiting block 211 can limit the upward movement distance of the sealing flap 202. Since the thermally contacted elastic balloon 402 does not expand at this time, the thermally contacted elastic balloon 402 will not trigger the thermally activated switch 403. Therefore, the limiting block 211 can play a limiting role to prevent the thermally activated switch 403 from being accidentally triggered when SF6 gas is filled into the main housing 101.

[0041] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A GIS high-voltage switch housing with a safety protection structure, comprising a main housing (101), characterized in that, The main housing (101) is provided with a security protection mechanism, which includes a protective adjusting cylinder (201) that penetrates and is embedded in the outer wall of the top of the main housing (101). The bottom end of the protective adjusting cylinder (201) is open. A sealing flap (202) is provided inside the protective adjusting cylinder (201) and is slidably and sealingly connected to it. Connecting blocks (203) are fixedly connected to the inner walls on both sides of the protective adjusting cylinder (201). An elastic rope (204) is fixedly connected between the connecting blocks (203) and the sealing flap (202). A damping magnet (205) is movably placed at the top of the protective adjusting cylinder (201). A damping iron block (206) is fixedly connected to the top of the sealing flap (202). The elastic rope (204) is in a stretched state. A leakage alarm switch (207) is fixedly installed on the inner wall. An L-shaped trigger plate (208) is fixedly connected to the top of the sealing flap (202). An alarm device (209) is fixedly installed on the top of the protective regulating cylinder (201). A protective controller (003) is fixedly installed on the inner wall of the top of the protective regulating cylinder (201). The protective controller (003) is equipped with a leakage analysis module and an alarm control module. The leakage alarm switch (207) is electrically connected to the leakage analysis module. The leakage analysis module is electrically connected to the alarm control module. The alarm control module is electrically connected to the alarm device (209). The connecting block (203) is located below the sealing flap (202). The leakage alarm switch (207) is located above the sealing flap (202) and below the trigger plate (208).

2. The GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, The damping iron block (206) is made of ferromagnetic material.

3. The GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, A gas sensor (210) is fixedly installed on the inner wall of the top of the protective regulating cylinder (201). A gas analysis module is also provided in the protective controller (003). The gas sensor (210) is electrically connected to the gas analysis module, and the gas analysis module is electrically connected to the reminder control module.

4. A GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, The protective regulating cylinder (201) is provided with a heat detection protection component, which includes a guide rod (401) and a heat-sensitive elastic balloon (402) located above the guide rod (401). The guide rod (401) penetrates the iron block (206) and the sealing flap (202). The top end of the guide rod (401) penetrates the outer wall of the heat-sensitive elastic balloon (402) and extends into the interior of the heat-sensitive elastic balloon (402).

5. A GIS high-voltage switch housing with a safety protection structure according to claim 4, characterized in that, The thermal protection component also includes a thermal wake-up switch (403) fixedly installed on the inner wall of the top of the protection regulating cylinder (201). The protection controller (003) is also provided with an overheat analysis module. The thermal wake-up switch (403) is electrically connected to the overheat analysis module, and the overheat analysis module is electrically connected to the reminder control module.

6. A GIS high-voltage switch housing with a safety protection structure according to claim 5, characterized in that, The thermal wake-up switch (403) is located directly above the thermally contacted elastic balloon (402), which is filled with air. The thermally contacted elastic balloon (402) is made of an elastic material, and the contact rod (401) is made of a thermally conductive material.

7. A GIS high-voltage switch housing with a safety protection structure according to claim 5, characterized in that, A limiting block (211) is fixedly installed on the inner wall of the protective regulating cylinder (201). The limiting block (211) is above the sealing flap (202). The distance between the limiting block (211) and the sealing flap (202) is less than the distance between the thermal elastic balloon (402) and the thermal wake-up switch (403).

8. A GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, The reminder (209) can emit at least three different prompts, and a sealing ring (212) is provided at the connection between the protective adjustment cylinder (201) and the main housing (101).

9. A GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, The top of the protective adjusting cylinder (201) is fixedly installed with a magnetic shielding storage box (213) that matches the anti-contact magnet (205). The top of the magnetic shielding storage box (213) is set to be open. The magnetic shielding storage box (213) is made of magnetic shielding material.

10. A GIS high-voltage switch housing with a safety protection structure according to claim 1, characterized in that, Multiple heat sinks (102) are embedded through the outer wall of the main housing (101), and the heat sinks (102) are made of thermally conductive material.

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