Digitized liquid cooling fireproof high-voltage switch cabinet

Abstract

This invention relates to the technical field of switchgear, and more particularly to a digital liquid-cooled fire-resistant high-voltage switchgear, comprising a partition; a partition fixedly connected inside the cabinet, the partition contacting the cabinet door; a shell fixedly connected between the cabinet and the partition; several heat-conducting plates passing through the shell; a bending plate slidably connected between the shell and all the heat-conducting plates; when electrical components inside the cabinet overheat and spontaneously combust, the bending plate can automatically pressurize the cooling in the bending cavity, thereby accelerating the speed and flow rate of the coolant flowing out of the through hole, ensuring the fire extinguishing effect and avoiding the problem of low fire extinguishing efficiency caused by slow coolant outflow. Furthermore, the coolant circulator can issue a fire alarm by monitoring changes in coolant pressure, which increases the fire monitoring methods and improves safety. In normal use, the bending plate is also used to scrape off scale adhering to the surface of the heat-conducting plates to ensure the heat exchange function of the heat-conducting plates, thereby ensuring the heat dissipation effect.

Description

Technical Field

[0001] This invention relates to the technical field of switchgear. More specifically, this invention relates to a digital liquid-cooled, fire-resistant, high-voltage switchgear. Background Technology

[0002] To improve safety, existing switchgear cooling plates are equipped with fusible links. When the internal temperature of the switchgear rises abnormally or spontaneous combustion occurs, the high temperature will cause the fusible link to melt and connect, allowing coolant inside the cooling plate to spray out from the fusible link, thus extinguishing the fire.

[0003] However, after the melting point melts, a small hole is formed. The coolant often seeps slowly or drips intermittently from the small hole, which cannot quickly cover the fire area, resulting in a slow firefighting response, low firefighting efficiency, and difficulty in effectively controlling the fire in the early stages of the fire. Summary of the Invention

[0004] To overcome the shortcomings of existing switchgear with low fire extinguishing efficiency using coolant, this invention provides a digital liquid-cooled fireproof high-voltage switchgear.

[0005] The technical solution is as follows: A digital liquid-cooled fire-resistant high-voltage switchgear includes a cabinet and a door; the door is rotatably connected to the cabinet; it also includes a partition, a shell, a heat-conducting plate, a bending plate, springs, a round rod, a cone, a connecting plate, a fusible alloy block, a conveying assembly, and a pulling assembly; a partition is fixedly connected inside the cabinet, and the partition contacts the door; a shell is fixedly connected between the cabinet and the partition; several heat-conducting plates are installed on the shell; a bending plate is slidably connected between the shell and all the heat-conducting plates; a bending cavity is formed between the shell, the heat-conducting plates, and the underside of the bending plate; several springs are fixedly connected to the bending plate, and the springs are fixedly connected to the shell; several... There are one round rod 1; a cone is fixedly connected to each round rod 1; several through holes 1 are opened on the shell, and the through holes 1 communicate with the bending cavity; the lower end of each round rod is located in the corresponding through hole 1; each cone is located in the corresponding through hole 1; several connecting plates are slidably connected to the shell, and the connecting plates are slidably connected to the partition; several fusible alloy blocks are fixedly connected to each connecting plate, and the fusible alloy blocks are in contact with the corresponding cone; several through holes 2 are opened on each connecting plate; a conveying assembly is connected to the cabinet, and the conveying assembly is used to convey coolant into the bending cavity; a pulling assembly is connected to the partition, and the pulling assembly is used to drive the connecting plates to move.

[0006] Furthermore, the conveying assembly includes pipe one, pipe two, and a coolant circulator; pipe one is fixedly connected to the housing, communicating with the bending cavity, and passing through a partition; pipe two is fixedly connected to the housing, communicating with the bending cavity, and passing through a partition; a coolant circulator is installed between the cabinet and the partition; the output end of the coolant circulator is connected to pipe one, and the output end of the coolant circulator is fixedly connected to pipe one; the input end of the coolant circulator is connected to pipe two, and the input end of the coolant circulator is fixedly connected to pipe two.

[0007] Furthermore, a filtration mechanism is installed inside the coolant circulator.

[0008] The present invention achieves a filtration effect by adopting the above structure.

[0009] Furthermore, the pulling assembly includes a connecting rod, a T-block, and a pin; the connecting rod is fixedly connected to all connecting plates; a T-block is fixedly connected to the partition plate, and the T-block is slidably connected to the connecting rod; a pin is slidably connected to the connecting rod, and the pin is plugged into and pulled out of the T-block.

[0010] Furthermore, it also includes threaded rods; several threaded rods are slidably connected to the housing.

[0011] By employing the above-described structure, the present invention achieves a limiting effect.

[0012] Furthermore, it also includes auxiliary components, which include a second round rod and a connecting block; the second round rod is slidably connected to the cabinet body, the second round rod is slidably connected to the shell, the second round rod is fixedly connected to the bending plate; and the connecting block is fixedly connected to the second round rod.

[0013] Furthermore, it also includes round tubes; a round tube is inserted between the cabinet body and the shell.

[0014] Furthermore, it also includes a filter; a filter is installed inside the round tube.

[0015] The present invention achieves a filtration effect by adopting the above structure.

[0016] Furthermore, the outer surface of the cabinet is coated with an anti-rust layer.

[0017] Furthermore, rubber pads are installed at the bottom of the cabinet.

[0018] The present invention achieves vibration reduction effect by adopting the above structure.

[0019] The beneficial effects of this invention are as follows: First, when electrical components inside the cabinet overheat and spontaneously combust, the cooling in the bending cavity can be automatically pressurized by the bending plate, thereby accelerating the flow rate and speed of the coolant from the through hole to ensure the fire extinguishing effect and avoid the problem of low fire extinguishing efficiency caused by slow coolant flow. In addition, the coolant circulator can issue a fire alarm by monitoring changes in coolant pressure, which increases the fire monitoring channels and helps to improve safety. In normal use, the bending plate is also used to scrape off the scale adhering to the surface of the heat-conducting plate to ensure the heat exchange function of the heat-conducting plate and thus ensure the heat dissipation effect.

[0020] Second, the bending plate can be blocked and limited by the threaded rod to prevent the bending plate from completely adhering to the bottom of the inner side of the shell, so that a bending cavity is still formed inside the shell. At this time, the coolant can be delivered to the bending cavity through the coolant circulator, so that the coolant can continue to flow out from the through hole one, preventing secondary spontaneous combustion and further improving the fire extinguishing effect.

[0021] Third, the manual operation involves using the round rod and connecting block to move the bent plate to its reset position, avoiding interference with the connecting plate and reducing the difficulty of manual operation. At the same time, the connecting block also serves to alert staff to proceed with emergency operations, which helps improve safety. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the digital liquid-cooled fire-resistant high-voltage switchgear of the present invention is shown;

[0023] Figure 2 A cross-sectional view of the digital liquid-cooled fire-resistant high-voltage switchgear of the present invention is shown;

[0024] Figure 3 A schematic diagram of the structure of the bending plate of the present invention is shown;

[0025] Figure 4 A top view of the housing and heat-conducting plate of the present invention is shown;

[0026] Figure 5 A schematic diagram of the structure of the circular rod and the cone of the present invention is shown;

[0027] Figure 6 The present invention is shown. Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 A schematic diagram of the structure of the fusible alloy block of the present invention is shown;

[0029] Figure 8 A schematic diagram of the structure of the pull assembly of the present invention is shown.

[0030] Reference numerals: 1-Cabinet body, 2-Cabinet door, 3-Partition, 4-Shell, 5-Heat-conducting plate, 6-Bending plate, 7-Spring, 8-Round rod one, 9-Cone, 10-Connecting plate, 11-Fuse alloy block, 201-Pipe one, 202-Pipe two, 203-Coolant circulator, 204-Connecting rod, 205-T-block, 206-Pin, 207-Threaded rod, 208-Round rod two, 209-Connecting block, 2010-Round pipe, 2011-Filter, 491-Bending cavity, 492-Through hole one, 493-Through hole two. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] Example 1: A digital liquid-cooled, fire-resistant, high-voltage switchgear, such as... Figures 1-8 As shown, the device includes a cabinet body 1, with a cabinet door 2 rotatably connected to the cabinet body 1; it is characterized by further including a partition 3, which is fixedly connected inside the cabinet body 1 and contacts the cabinet door 2; a shell 4 is fixedly connected between the cabinet body 1 and the partition 3; multiple heat-conducting plates 5 are passed through the shell 4; a bending plate 6 is slidably connected to both the shell 4 and all the heat-conducting plates 5; the shell 4, the heat-conducting plates 5, and the lower side of the bending plate 6 together form a bending cavity 491; multiple springs 7 are fixedly connected to the bending plate 6, and the springs 7 are also fixedly connected to the shell 4; multiple round rods 8 are fixedly connected to the bending plate 6; a cone 9 is fixedly connected to each round rod 8; and multiple openings are provided on the shell 4. Hole 492 is connected to the bending cavity 491; the lower end of each round rod 8 extends into the corresponding through hole 492, and the cone 9 is located in the corresponding through hole 492; multiple connecting plates 10 are slidably connected to the housing 4, and the connecting plates 10 are also slidably connected to the partition 3; multiple fusible alloy blocks 11 are fixedly connected to each connecting plate 10, and the fusible alloy blocks 11 are in contact with the corresponding cone 9; multiple through holes 493 are opened on each connecting plate 1; a conveying assembly is configured on the cabinet 1, which is used to convey coolant into the bending cavity 491; a pulling assembly is configured on the partition 3, which is used to drive the connecting plate 10 to move.

[0033] The conveying assembly includes pipe 1 201, pipe 2 202, and coolant circulator 203; pipe 1 201 is fixedly connected to the housing 4, and pipe 1 201 is connected to the bending cavity 491 and passes through the partition 3; pipe 2 202 is fixedly connected to the housing 4, and pipe 2 202 is connected to the bending cavity 491 and passes through the partition 3; coolant circulator 203 is installed between the cabinet 1 and the partition 3; the output end of coolant circulator 203 is connected to and fixedly connected to pipe 1 201; the input end of coolant circulator 203 is connected to and fixedly connected to pipe 2 202.

[0034] The coolant circulator 203 is equipped with a filter mechanism to filter impurities in the coolant.

[0035] The pulling assembly includes a connecting rod 204, a T-block 205, and a pin 206; all connecting plates 10 are fixedly connected to each other by the connecting rod 204, and the manual connection of the connecting rod 204 drives all connecting plates 10 to move together; a T-block 205 is welded on the partition plate 3, and the T-block 205 is slidably connected to the connecting rod 204; a pin 206 is slidably connected to the connecting rod 204, and the pin 206 is plugged into and pulled out of the T-block 205.

[0036] First, the coolant circulator 203 delivers coolant to the front of the bending cavity 491 through pipe 201. The coolant flows from the front to the rear of the bending cavity 491, then flows into pipe 202 from the rear, and then back into the coolant circulator 203, allowing the coolant to circulate within the bending cavity 491. During this process, the coolant is in full contact with the heat-conducting plate 5. The heat generated by the operation of the electrical components inside the cabinet 1 is conducted to the heat-conducting plate 5, and then to the coolant, achieving a heat dissipation effect. When the electrical components inside the cabinet 1 overheat and spontaneously combust, the resulting high temperature melts the fusible alloy block 11, causing the fusible alloy block 11 to stop supporting the cone 9. At this time, the spring 7, initially compressed, rebounds and drives the bending plate 6 downward. The bending plate 6 drives the round rod 8 and the cone 9 downward, causing the cone 9 to stop blocking the through hole 492. This allows the coolant (such as high-purity deionized water and a mixture of ethylene glycol and propylene glycol) in the bending cavity 491 to spray downward from the through hole 492 onto the electrical components, achieving a fire extinguishing effect. Simultaneously, the downward-moving bending plate 6 compresses the coolant in the bending cavity 491, thereby accelerating the speed and flow rate of the coolant out of the through hole 492, effectively controlling the fire in its early stages. At this time, the coolant circulator 203 detects a sudden drop in coolant pressure and sends an alarm signal to the control center to remind workers. Personnel went to inspect; during normal use, scale will adhere to the surface of the heat-conducting plate 5, requiring regular cleaning. During cleaning, the coolant in the bending cavity 491 is drained through the coolant circulator 203. Then, the cabinet door 2 is opened manually, and the pin 206 is pulled out from the T-block 205, stopping the pin 206 from fixing the connecting rod 204. The connecting rod 204 is then manually pulled to the left, causing the connecting plate 10 to move to the left until the connecting rod 204 reaches the limit position of the T-block 205. At this point, the through hole 493 on the connecting plate 10 is aligned with the cone 9, causing the spring 7, which was initially compressed, to rebound and drive the bending plate 6 downward, thus causing the bending plate... 6. Scrape off the scale adhering to the heat-conducting plate 5, then manually push the cone 9 upward. The cone 9 drives the rod 8 upward, and the rod 8 drives the bending plate 6 upward back to its original position. Then manually drive the connecting rod 204 to the right, and the connecting rod 204 drives the connecting plate 10 to the right, so that the connecting plate 10 drives the fusible alloy block 11 to move back below the cone 9. Then manually insert the pin 206 back into the T-block 205 to complete the reset operation. Subsequently, the coolant circulator 203 re-supply the circulating coolant to the bending cavity 491. The coolant carries the scraped scale to the filter mechanism of the coolant circulator 203, where the scraped scale is filtered out.In use, when electrical components inside cabinet 1 overheat and spontaneously combust, the bending plate 6 automatically pressurizes the cooling system within the bending cavity 491, thereby accelerating the flow rate and speed of the coolant from the through hole 492. This ensures effective fire suppression and avoids the problem of low fire suppression efficiency caused by slow coolant flow. Furthermore, the coolant circulator 203 can issue a fire alarm by monitoring coolant pressure changes, increasing fire detection methods and improving safety. During normal use, the bending plate 6 also removes scale adhering to the surface of the heat-conducting plate 5 to ensure its heat exchange function and thus ensure effective heat dissipation.

[0037] It also includes threaded rods 207; four threaded rods 207 are slidably connected on the housing 4, and the bending plate 6 is limited by the threaded rods 207.

[0038] During firefighting, the downward movement of the bending plate 6 quickly squeezes out the coolant in the bending cavity 491, effectively controlling the fire in its early stages. Subsequently, the threaded rod 207 blocks and limits the downward movement of the bending plate 6, preventing it from completely adhering to the bottom inner side of the shell 4, thus maintaining the bending cavity 491 inside the shell 4. At this time, coolant can be supplied to the bending cavity 491 through the coolant circulator 203, allowing the coolant to continue flowing out from the through hole 492, preventing secondary spontaneous combustion. During the cleanup process, manual cleaning is carried out using four corners... The wrench drives the threaded rod 207 downward, making the upper end of the threaded rod 207 flush with the bottom of the inner side of the housing 4, thereby preventing the threaded rod 207 from interfering with the cleaning operation. During use, the threaded rod 207 can be used to block and limit the bending plate 6, preventing the bending plate 6 from completely fitting the bottom of the inner side of the housing 4, so that the inner side of the housing 4 still forms a bending cavity 491. At this time, the coolant circulator 203 can deliver coolant to the bending cavity 491, so that the coolant can continue to flow out from the through hole 492, preventing secondary spontaneous combustion and further improving the fire extinguishing effect.

[0039] It also includes auxiliary components, including a second round rod 208 and a connecting block 209; the second round rod 208 is slidably connected to the cabinet 1, the second round rod 208 is slidably connected to the shell 4, and the second round rod 208 is fixedly connected to the bending plate 6; the connecting block 209 is welded to the second round rod 208, and the second round rod 208 can be moved upward by manpower through the connecting block 209, making it more convenient to apply force.

[0040] During the cleaning and resetting process, the cone 9 is manually pushed upwards, causing the first round rod 8 to move upwards to the east. This causes the first round rod 8 to move the bent plate 6 upwards back to its original position. At this time, the operator needs to press the cone 9 firmly against the lower side of the housing 4 with their fingers, and then move the connecting plate 10 to the right, causing the connecting plate 10 to move the fusible alloy block 11 below the cone 9. However, pressing the cone 9 with the fingers will interfere with the movement of the connecting plate 10, making the resetting operation difficult. Therefore, an auxiliary component is set on the cabinet 1. During resetting, the operator uses the connecting block 209 to move the second round rod 208 upwards, which in turn moves the bent plate 6 upwards back to its original position. Then, the connecting plate 10 moves the fusible alloy block 11... 1. When the device moves to below cone 9, there will be no interference problem, greatly reducing the difficulty of manual operation. In the event of spontaneous combustion, bending plate 6 will drive round rod 208 to move downward, and round rod 208 will drive connecting block 209 to move downward. At this time, the surrounding staff can judge that the fire extinguishing operation has been triggered by the decrease in the height of connecting block 209, thus reminding the staff to carry out emergency operations in time. In use, the manual operation involves using round rod 208 and connecting block 209 to drive bending plate 6 to reset, avoiding interference problem with connecting plate 10, thus reducing the difficulty of manual operation. At the same time, connecting block 209 is also used to remind staff to carry out emergency operations, which helps to improve safety.

[0041] Example 2, based on Example 1, such as Figure 3 As shown, it also includes a round tube 2010; the round tube 2010 is provided between the cabinet 1 and the shell 4, and the cavity above the bending plate 6 is connected to the outside through the round tube 2010.

[0042] It also includes a filter 2011; the filter 2011 is installed inside the round tube 2010, and the filter 2011 filters impurities in the air.

[0043] The outer surface of cabinet 1 is coated with an anti-rust layer to extend its lifespan.

[0044] Rubber pads are installed at the bottom of cabinet 1 for vibration damping and support.

[0045] When the bending plate 6 moves in the bending cavity 491, the bending plate 6 is connected to the outside through the circular tube 2010 in the upper cavity, so that the bending plate 6 is always at the standard air pressure in the upper cavity, preventing interference with the movement of the bending plate 6. At the same time, the filter 2011 intercepts impurities in the outside air, preventing impurities from entering the inside of the shell 4 through the circular tube 2010.

[0046] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A digital liquid-cooled fire-resistant high-voltage switchgear, comprising a cabinet (1); a cabinet door (2) is rotatably connected to the cabinet (1); characterized in that, It also includes a partition (3); a partition (3) is fixedly connected inside the cabinet (1), and the partition (3) contacts the cabinet door (2); a shell (4) is fixedly connected between the cabinet (1) and the partition (3); several heat-conducting plates (5) are installed on the shell (4); a bent plate (6) is slidably connected between the shell (4) and all the heat-conducting plates (5); a bent cavity (491) is formed between the shell (4), the heat-conducting plates (5) and the bent plate (6); several springs (7) are fixedly connected to the bent plate (6), and the springs (7) are fixedly connected to the shell (4); several round rods (8) are fixedly connected to the bent plate (6); a cone (9) is fixedly connected to each round rod (8); several through holes (492) are opened on the shell (4), and the through holes (492) are connected to the shell (492). 92) Connected to the bending cavity (491); the lower end of each round rod (8) is located in the corresponding through hole (492); each cone (9) is located in the corresponding through hole (492); several connecting plates (10) are slidably connected to the shell (4), and the connecting plates (10) are slidably connected to the partition (3); several fusible alloy blocks (11) are fixedly connected to each connecting plate (10), and the fusible alloy blocks (11) are in contact with the corresponding cone (9); several through holes (493) are opened on each connecting plate (10); a conveying assembly is connected to the cabinet (1), and the conveying assembly is used to convey coolant into the bending cavity (491); a pulling assembly is connected to the partition (3), and the pulling assembly is used to drive the connecting plate (10) to move.

2. The digital liquid-cooled fire-resistant high-voltage switchgear according to claim 1, characterized in that, The conveying assembly includes pipe one (201), pipe two (202) and coolant circulator (203); pipe one (201) is fixedly connected to the housing (4), pipe one (201) is connected to the bending cavity (491), and pipe one (201) passes through the partition (3); pipe two (202) is fixedly connected to the housing (4), pipe two (202) is connected to the bending cavity (491), and pipe two (202) passes through the partition (3); coolant circulator (203) is installed between the cabinet (1) and the partition (3); the output end of coolant circulator (203) is connected to pipe one (201), and the output end of coolant circulator (203) is fixedly connected to pipe one (201); the input end of coolant circulator (203) is connected to pipe two (202), and the input end of coolant circulator (203) is fixedly connected to pipe two (202).

3. The digital liquid-cooled fire-resistant high-voltage switchgear according to claim 2, characterized in that, A filter mechanism is installed inside the coolant circulator (203).

4. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 2, characterized in that, The pulling assembly includes a connecting rod (204), a T-block (205), and a pin (206); the connecting rod (204) is fixedly connected to all the connecting plates (10); the T-block (205) is fixedly connected to the partition (3), and the T-block (205) is slidably connected to the connecting rod (204); the pin (206) is slidably connected to the connecting rod (204), and the pin (206) is plugged into and pulled out of the T-block (205).

5. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 4, characterized in that, It also includes threaded rods (207); several threaded rods (207) are slidably connected on the housing (4).

6. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 5, characterized in that, It also includes auxiliary components, including a second round rod (208) and a connecting block (209); the second round rod (208) is slidably connected to the cabinet (1), the second round rod (208) is slidably connected to the shell (4), the second round rod (208) is fixedly connected to the bending plate (6); the connecting block (209) is fixedly connected to the second round rod (208).

7. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 6, characterized in that, It also includes a round tube (2010); a round tube (2010) is provided between the cabinet (1) and the shell (4).

8. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 7, characterized in that, It also includes a filter (2011); a filter (2011) is installed inside the round tube (2010).

9. A digital liquid-cooled fire-resistant high-voltage switchgear according to any one of claims 1-8, characterized in that, The outer surface of the cabinet (1) is coated with an anti-rust layer.

10. A digital liquid-cooled fire-resistant high-voltage switchgear according to claim 9, characterized in that, A rubber pad is installed at the bottom of the cabinet (1).

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