High-safety environment-friendly gas ring main unit

Abstract

The invention relates to a high-safety environment-friendly gas ring main unit, and relates to the field of high-voltage electrical cabinets, the high-safety environment-friendly gas ring main unit comprises a cabinet body and a reservoir, the top of the cabinet body is provided with a cable, the cable penetrates through the cabinet body and is in sealed connection with the cabinet body, the cabinet body is provided with a pressurization pipe I, the pressurization pipe I is used for introducing an insulating medium into the cabinet body, and the reservoir is arranged outside the cabinet body; and the reservoir is used for storing cooling water. The cabinet has the effect of reducing the working temperature in the cabinet body.

Description

Technical Field

[0001] The present application relates to the field of high-voltage electrical cabinets, and in particular to a high-safety and environmentally friendly gas ring network cabinet. Background Art

[0002] The environmentally friendly gas ring main unit is a high-voltage switchgear. By using environmentally friendly insulating medium instead of traditional sulfur hexafluoride gas, the environmentally friendly insulating medium is passed into the cabinet, thereby reducing the probability of arcing when high-voltage electrical components are energized and improving the safety of high-voltage electrical components.

[0003] The existing ring main unit includes a cabinet body, which is a sealed box structure. A pipe is provided on the cabinet body, through which an insulating medium is introduced into the cabinet body. When the insulating medium is introduced into the cabinet body, the high-voltage electrical components in the cabinet body are energized and work, and the insulating gas has an arc extinguishing effect, which can improve the safety of high-voltage equipment tooling.

[0004] The above-mentioned related technical solutions have the following defects: when the insulating medium is introduced into the cabinet, the heat dissipation efficiency of the high-voltage electrical components in the closed environment is low. Summary of the Invention

[0005] In order to reduce the operating temperature inside the cabinet, the present application provides a high-safety and environmentally friendly gas ring network cabinet.

[0006] The high-security and environmentally friendly gas ring network cabinet provided in this application adopts the following technical solutions: A high-safety and environmentally friendly gas ring network cabinet includes a cabinet body and a water reservoir. A cable is arranged on the top of the cabinet body, the cable passes through the cabinet body and is sealed with the cabinet body. A pressurized pipe is arranged on the cabinet body, and the pressurized pipe is used to pass an insulating medium into the cabinet body. The water reservoir is arranged outside the cabinet body and is used to store cooling water.

[0007] By adopting the above technical solution, a water reservoir is set outside the cabinet so that the water reservoir can store cooling water. When the temperature inside the cabinet rises, heat exchange occurs between the cabinet and the cooling water in the water reservoir, thereby reducing the temperature inside the cabinet and achieving the effect of cooling the cabinet.

[0008] Optionally, a sealed shell is provided outside the cabinet, the sealed shell is sleeved outside the cabinet, and a second pressurized pipe is provided on the sealed shell, and the second pressurized pipe is used to pass an insulating medium into the sealed shell.

[0009] By adopting the above technical solution, a sealed shell is provided outside the cabinet body, so that the sealed shell plays a protective role. When there are gaps on the cabinet body, the sealed shell remains airtight, thereby maintaining a higher concentration of insulating medium in the cabinet body, reducing the probability of arcing when the high-voltage electrical components are working. The sealed shell can reduce the probability of cooling water in the water reservoir entering the cabinet body.

[0010] Optionally, a first pressure gauge is provided on the pressurized pipe 1, and a second pressure gauge is provided on the pressurized pipe 2.

[0011] By adopting the above technical solution, by arranging pressure gauges on pressurized pipe 1 and pressurized pipe 2, and by allowing insulating media of different air pressures to pass into the cabinet and the sealed shell respectively, when damage occurs on the cabinet, the readings of pressure gauge 1 and pressure gauge 2 will change. When damage occurs on the sealed shell, the reading of pressure gauge 1 remains unchanged, while the reading of pressure gauge 2 changes, which is convenient for users to inspect and repair.

[0012] Optionally, valve one is provided on the pressurized pipe one, and valve two is provided on the pressurized pipe two.

[0013] By adopting the above technical solution, valve one is provided on pressurized pipe one. After the insulating medium is injected into the cabinet through pressurized pipe one, valve one is closed to keep the cabinet in a sealed state. Valve two is provided on pressurized pipe two to keep the sealed shell sealed, thereby reducing the steps of providing air pumps on pressurized pipes one and two and continuously injecting insulating medium.

[0014] Optionally, a plurality of bases 1 are provided at the bottom of the cabinet, and the base 1 is provided between the cabinet and the sealed shell; a plurality of bases 2 are provided at the bottom of the sealed shell, and the base 2 is provided between the sealed shell and the water tank.

[0015] By adopting the above technical solution, by setting a base one on the cabinet, a gap is created between the bottom of the cabinet and the sealed shell, so that the insulating medium can be evenly distributed outside the cabinet. By setting a base two at the bottom of the sealed shell, a gap is created between the sealed shell and the water reservoir, so that cooling water can flow to the bottom of the sealed shell, so that the temperature inside the cabinet is evenly reduced.

[0016] Optionally, the sealed shell is configured as a box structure with an opening, and a fiberglass plate is provided on the sealed shell. The fiberglass plate is detachably connected to the sealed shell, and the fiberglass plate is made of a transparent material.

[0017] By adopting the above technical solution and arranging a fiberglass plate on the sealed outer shell, users can view the indicator lights or indications on the cabinet through the fiberglass plate. The fiberglass plate has better structural strength, can withstand the water pressure in the water tank, and maintain better structural strength and sealing.

[0018] Optionally, an emergency pipe 1 is provided at the bottom of the cabinet, an emergency valve 1 is provided on the emergency pipe 1, and an emergency pipe 2 is provided at the bottom of the sealed shell, an emergency valve 2 is provided on the emergency pipe 2.

[0019] By adopting the above technical solution, by arranging emergency pipe 1 at the bottom of the cabinet and emergency valve 1 on emergency pipe 1, when an electric arc is generated in the cabinet and a fire occurs, the open flame still burns after the high-voltage electrical components are powered off, and the cooling water in the water reservoir can enter the cabinet through emergency pipe 1 and emergency pipe 2, thereby extinguishing the open flame and reducing the risk of combustion or explosion in the cabinet.

[0020] Optionally, a temperature sensor is provided in the cabinet, and a controller is provided on the temperature sensor. The controller receives data from the temperature sensor and controls the actions of the emergency valve 1 and the emergency valve 2.

[0021] By adopting the above technical solution, a temperature sensor is set in the cabinet, so that the controller can monitor the temperature inside the cabinet through the temperature sensor. When the high-voltage electrical components in the cabinet are heated to a high temperature, the controller controls the emergency valve 2 to open, and cooling water can enter the sealed shell and cool the cabinet. When a fire occurs in the cabinet, the temperature inside the cabinet rises even more. At this time, the controller controls the emergency valve 1 and the emergency valve 2 to open, and cooling water enters the cabinet to extinguish the open flame.

[0022] In summary, the beneficial technical effects of this application are: 1. A water reservoir is set outside the cabinet to store cooling water. When the temperature inside the cabinet rises, heat exchange occurs between the cabinet and the cooling water in the reservoir, thereby lowering the temperature inside the cabinet and achieving the effect of cooling the cabinet. 2. A sealed shell is installed outside the cabinet to provide protection. When there are gaps on the cabinet, the sealed shell remains airtight, thereby maintaining a high concentration of insulating medium inside the cabinet, reducing the probability of arcing when high-voltage electrical components are working. The sealed shell can also reduce the probability of cooling water in the water reservoir entering the cabinet. 3. By setting a base 1 on the cabinet, a gap is created between the bottom of the cabinet and the sealed shell, so that the insulating medium can be evenly distributed outside the cabinet. By setting a base 2 at the bottom of the sealed shell, a gap is created between the sealed shell and the water reservoir, so that cooling water can flow to the bottom of the sealed shell, so that the temperature inside the cabinet is evenly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the installation structure of the cabinet according to an embodiment of the present application.

[0025] Figure 3 It is a structural diagram of the cabinet of an embodiment of the present application.

[0026] Figure 4Schematic diagram of the structure of the sealed housing according to an embodiment of the present application.

[0027] Figure 5 It is a logic block diagram of an embodiment of the present application.

[0028] Figure numerals: 1. Cabinet; 11. Cable; 12. Pressurized pipe 1; 121. Pressure gauge 1; 122. Valve 1; 13. Base 1; 14. Emergency pipe 1; 141. Emergency valve 1; 2. Sealed shell; 21. Pressurized pipe 2; 211. Pressure gauge 2; 212. Valve 2; 22. Fiberglass plate; 23. Base 2; 24. Emergency pipe 2; 241. Emergency valve 2; 3. Water reservoir; 31. Water inlet pipe; 32. Water outlet pipe; 4. Temperature sensor; 5. Controller. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings.

[0030] The present application discloses a high-security environmentally friendly gas ring network cabinet, referring to Figure 1 and Figure 2 , including a cabinet 1 and a sealed shell 2. The cabinet 1 is sealed. High-voltage electrical components are arranged in the cabinet 1. A cable 11 is installed on the cabinet 1. The cable 11 passes through the upper top plate of the cabinet 1 and is sealed with the upper top plate. The cable 11 is used to electrically connect with the high-voltage electrical components in the cabinet 1. A pressurized pipe 12 is installed on the cabinet 1. The pressurized pipe 12 is used to pass a mixture of nitrogen, oxygen and fluorinated ketone gas into the cabinet 1. The nitrogen, oxygen and fluorinated ketone gas mixture serves as an insulating medium with good insulation properties, which can enhance the insulation strength and arc extinguishing performance in the cabinet 1. The GWP value of fluorinated ketone gas is small, the insulating medium has less impact on the greenhouse effect, and is more environmentally friendly. The sealed shell 2 is covered outside the cabinet 1. The cable 11 passes through the upper top surface of the sealed shell 2 and is sealed with the sealed shell 2. A pressurized pipe 21 is provided on the sealed shell 2. The pressurized pipe 21 passes the insulating medium into the sealed shell 2. The cabinet 1 and the sealed shell 2 protect the high-voltage electrical components in the cabinet 1. When the cabinet 1 is damaged or leaks, the insulating medium in the sealed shell 2 can enter the cabinet 1, thereby maintaining the concentration of the insulating medium in the cabinet 1 at a high level, reducing the probability of arcing and accidents in the cabinet 1.

[0031] Reference Figure 1 A water reservoir 3 is provided outside the sealed shell 2, and the sealed shell 2 is provided in the water reservoir 3. Cooling water is stored in the water reservoir 3. When the insulating medium is introduced into the cabinet 1 and the sealed shell 2, the heat generated by the electrical components in the cabinet 1 is difficult to dissipate. By immersing the sealed shell 2 in cooling water, the cooling water and the sealed shell 2 are heat-exchanged, and the insulating medium in the sealed shell 2 is heat-exchanged with the cabinet 1, thereby achieving the effect of cooling the electrical components in the cabinet 1 and reducing the operating temperature of the electrical components.

[0032] Reference Figure 1 The water reservoir 3 is provided with an inlet pipe 31 and an outlet pipe 32, each of which is provided with a water pump. The inlet pipe 31 and the outlet pipe 32 are connected to a water tank, which is used to store and cool cooling water. The low-temperature cooling water in the water tank enters the water reservoir 3 through the inlet pipe 31. The low-temperature cooling water absorbs heat after heat exchange with the sealed housing 2. The heated cooling water flows into the water tank through the outlet pipe 32. A temperature control device such as a heat exchanger can be provided in the water tank to remove heat from the cabinet 1 during the circulation of the cooling water.

[0033] Reference Figure 2 and Figure 3 Pressure pipe 12 is equipped with a pressure gauge 121, and pressure pipe 21 is equipped with a pressure gauge 211. Pressure gauge 121 displays the air pressure within cabinet 1, while pressure gauge 211 displays the air pressure within sealed housing 2. When insulating medium is introduced into both cabinet 1 and sealed housing 2, the pressures within cabinet 1 and sealed housing 2 differ, creating a pressure differential. If damage occurs to cabinet 1, the insulating medium within the cabinet 1 and sealed housing 2 flows, causing the readings of pressure gauges 121 and 211 to change. If damage occurs to sealed housing 2, the reading of pressure gauge 121 remains stable, while the reading of pressure gauge 211 changes, allowing operators to perform maintenance based on the readings of pressure gauges 121 and 211.

[0034] Reference Figure 2 and Figure 3 Valve 122 is installed on pressurized pipe 12, and valve 212 is installed on pressurized pipe 21. Valve 122 is used to control the opening and closing of pressurized pipe 12, and valve 212 is used to control the opening and closing of pressurized pipe 21. When the insulating medium is introduced into cabinet 1, valve 122 closes, keeping cabinet 1 airtight.

[0035] Reference Figure 1 The sealed housing 2 can be configured as a box structure with an opening. A fiberglass plate 22 is detachably connected to the sealed housing 2 and bolted to the sealed housing 2. The fiberglass plate 22 is made of a transparent material, allowing users to view the readings of electrical components within the cabinet 1 through the fiberglass plate 22. The fiberglass plate 22 has good structural strength and can withstand significant stress.

[0036] Reference Figure 3 and Figure 4The bottom of the cabinet 1 is equipped with multiple bases 13. Bases 13 are used to support the cabinet 1. When an insulating medium is introduced into the sealed housing 2, the insulating medium can be evenly distributed between the bottom of the cabinet 1 and the sealed housing 2, thereby improving the heat dissipation of the bottom of the cabinet 1. The bottom of the sealed housing 2 is equipped with multiple bases 23. Bases 23 are used to support the sealed housing 2, allowing cooling water to be distributed between the water reservoir 3 and the bottom of the sealed housing 2, thereby improving the heat dissipation of the sealed housing 2.

[0037] Reference Figure 3 and Figure 4 An emergency pipe 14 is provided on the lower side of the cabinet 1, and an emergency valve 141 is provided on the emergency pipe 14 to control the on / off of the emergency pipe 14. An emergency pipe 2 24 is provided on the lower side of the sealed housing 2, and an emergency valve 2 241 is provided on the emergency pipe 2 24 to control the on / off of the emergency pipe 2 24. When an arc is generated in the cabinet 1 and a fire occurs, the air switch and other safety devices are activated, and the power in the cabinet 1 is cut off. At this time, the emergency valve 141 and the emergency valve 241 are activated, and the cooling water in the water reservoir 3 can flow into the cabinet 1, thereby achieving the effect of extinguishing the fire and cooling the temperature, which can reduce the probability of explosion of electrical components in the cabinet 1. When the cooling water flows into the cabinet 1, the high-temperature gas in the cabinet 1 is discharged through the emergency pipe 14 and the emergency pipe 2 24. During the flow of the high-temperature gas, heat is exchanged with the cooling water, thereby cooling the gas and reducing the probability of gas burns to workers. The insulating medium pressure in the cabinet 1 is lower than the insulating medium pressure in the sealed shell 2. When cooling water is injected into the sealed shell 2, a low-pressure environment is formed in the cabinet 1, so that the cooling water can quickly flow into the cabinet 1 and extinguish the fire.

[0038] Reference Figure 5 A temperature sensor 4 is provided within the cabinet 1 and is electrically connected to a controller 5. The temperature sensor 4 is used to detect the temperature within the cabinet 1. When an arc occurs within the cabinet 1 and a fire occurs, the temperature within the cabinet 1 rises. The controller 5 receives data from the temperature sensor 4 and can control a power outage within the cabinet 1. The controller 5 then issues commands to emergency valve 1 141 and emergency valve 2 241 to allow cooling water to enter the cabinet 1. The controller 5 issues commands to emergency valve 1 141 and emergency valve 2 241 via a wireless communication module.

[0039] Reference Figure 5 When the high-voltage electrical components in the cabinet 1 generate a lot of heat and no open flame is generated, the temperature in the cabinet 1 rises. At this time, the controller 5 receives data from the temperature sensor 4 and controls the emergency valve 241 to open, so that cooling water can enter between the cabinet 1 and the sealed shell 2. At this time, the heat exchange efficiency between the cooling water and the cabinet 1 is relatively high, which can effectively reduce the temperature in the cabinet 1.

[0040] The implementation principle of the embodiment of the present application is as follows: by arranging a sealed shell 2 outside the cabinet 1, an insulating medium can be passed into both the cabinet 1 and the sealed shell 2. When damage occurs on the cabinet 1, a higher concentration of the insulating medium can be maintained inside the cabinet 1, thereby reducing the probability of an arc occurring in the cabinet 1. By arranging a water reservoir 3 outside the sealed shell 2, the sealed shell 2 can be immersed in the water reservoir 3, thereby further improving the heat dissipation speed of the cabinet 1. When an open flame occurs in the cabinet 1, the cooling water in the water reservoir 3 can enter the cabinet 1 and extinguish the fire, thereby reducing the probability of major accidents such as explosions in the cabinet 1.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-safety and environmentally friendly gas ring network cabinet, characterized by: The cabinet (1) comprises a cabinet body (1) and a water reservoir (3). A cable (11) is provided on the top of the cabinet body (1). The cable (11) passes through the cabinet body (1) and is sealed with the cabinet body (1). A pressurized pipe (12) is provided on the cabinet body (1). The pressurized pipe (12) is used to pass an insulating medium into the cabinet body (1). The water reservoir (3) is provided outside the cabinet body (1) and is used to store cooling water.

2. A high-safety and environmentally friendly gas ring main unit according to claim 1, characterized in that: A sealed shell (2) is provided outside the cabinet (1), and the sealed shell (2) is sleeved outside the cabinet (1). A second pressurized pipe (21) is provided on the sealed shell (2), and the second pressurized pipe (21) is used to pass an insulating medium into the sealed shell (2).

3. A high-safety and environmentally friendly gas ring main unit according to claim 2, characterized in that: The pressure tube 1 (12) is provided with a pressure gauge 1 (121), and the pressure tube 2 (21) is provided with a pressure gauge 2 (211).

4. The high-safety and environmentally friendly gas ring main unit according to claim 3, characterized in that: The pressure pipe 1 (12) is provided with a valve 1 (122), and the pressure pipe 2 (21) is provided with a valve 2 (212).

5. The high-safety and environmentally friendly gas ring main unit according to claim 2, characterized in that: The cabinet (1) is provided with a plurality of bases (13) at the bottom thereof, and the bases (13) are arranged between the cabinet (1) and the sealed housing (2). The sealed housing (2) is provided with a plurality of bases (23) at the bottom thereof, and the bases (23) are arranged between the sealed housing (2) and the water reservoir (3).

6. The high-safety and environmentally friendly gas ring main unit according to claim 5, characterized in that: The sealed housing (2) is configured as a box structure with an opening. A glass fiber reinforced plastic plate (22) is provided on the sealed housing (2). The glass fiber reinforced plastic plate (22) is detachably connected to the sealed housing (2). The glass fiber reinforced plastic plate (22) is made of a transparent material.

7. The high-safety and environmentally friendly gas ring main unit according to claim 2, characterized in that: The cabinet (1) is provided with an emergency pipe (14) at the bottom, and an emergency valve (141) is provided on the emergency pipe (14). The sealed housing (2) is provided with an emergency pipe (24) at the bottom, and an emergency valve (241) is provided on the emergency pipe (24).

8. The high-safety and environmentally friendly gas ring main unit according to claim 7, characterized in that: A temperature sensor (4) is provided in the cabinet (1), and a controller (5) is provided on the temperature sensor (4). The controller (5) receives data from the temperature sensor (4) and controls the actions of emergency valve 1 (141) and emergency valve 2 (241).

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