Insulation anti-voltage electric power cabinet

Abstract

The invention, which relates to the field of electrical equipment, discloses an insulating anti-voltage electric power cabinet comprising a middle separation cabinet body, a built-in cabinet body arranged inside the middle separation cabinet body, a gas box arranged at the lower end inside the built-in cabinet body, an electrical box arranged at the top of the gas box, an analog-to-digital conversion part arranged at the upper end inside the electrical box, and a power supply part arranged at the lower end of the analog-to-digital conversion part. The analog-to-digital conversion part can detect the change of the air pressure value in the electrical box, the upper end of the exterior of the electrical box is provided with an induction direct-pushing part, the air inlet expansion part effectively absorbs the gas overflowing from the outer surface of the electrical box, and the epoxy resin isolation cover, the air bag, the guide clamping frame, the air guide groove and other parts work cooperatively, so that the safety of the electrical box is improved. When a small amount of protective gas overflows from the electrical cabinet, an insulating protective layer can be formed outside the electrical cabinet through the gas outlet pipe, and the design can collect and treat leaked gas in time and can also construct a protective barrier by using the collected gas.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and specifically to an insulating pressure-resistant power cabinet. Background Art

[0002] Power gas cabinets are crucial equipment in power systems, primarily used to distribute and control electrical energy. In practice, these cabinets often face challenges, such as limited pressure resistance and cooling capacity, which can easily lead to leakage and high-temperature burnout. This not only impacts normal operation but also reduces equipment lifespan, increases maintenance costs, and poses safety risks.

[0003] The electrical equipment disclosed in publication number CN105305283, the insulated pressure-resistant power cabinet, is provided with an insulated pressure-resistant transformer to extend the service life of the power cabinet and prevent leakage; the power cabinet utilizes relays, ring network units, and solid-state switches to enable the power cabinet to autonomously sense adverse conditions and implement power-off protection; an exhaust cavity is provided to reduce the temperature of the insulated step-down transformer; and the bottom box accommodates an exhaust bushing and a ground wire extending to the ground.

[0004] However, to enhance insulation performance, most power gas cabinets incorporate an insulating protective gas, typically sulfur hexafluoride. However, this gas is toxic, and leaks can pollute the outside air. Therefore, these technologies lack an effective mechanism for collecting and utilizing gas leaks from key components like electrical boxes to enhance insulation performance. When a gas leak occurs, there's no way to create a protective barrier using the leaked gas, effectively mitigating the safety risks posed by the leak and ensuring stable and safe operation of the power cabinet.

[0005] Therefore, in order to study and improve the existing deficiencies, an insulating pressure-resistant power cabinet is proposed. Summary of the Invention

[0006] The object of the present invention is to provide an insulated pressure-resistant power cabinet to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an insulated pressure-resistant power cabinet, comprising: a partition cabinet body, a built-in cabinet body disposed inside the partition cabinet body, a gas box disposed at the lower end of the built-in cabinet body, and an electrical box disposed on the top of the gas box; An analog-to-digital conversion unit is provided at the upper end of the interior of the electrical box, and the analog-to-digital conversion unit can detect changes in the air pressure value inside the electrical box. An inductive direct push unit is provided at the upper end of the exterior of the electrical box, and the analog-to-digital conversion unit can send a start signal to the inductive direct push unit, causing the inductive direct push unit to extend its length. The upper end of the induction direct push portion is provided with an air intake expansion portion, which can move up and down with the induction direct push portion, and can absorb overflowed gas when the air intake expansion portion is sleeved on the outside of the electrical box; Steering parts are symmetrically provided on both sides of the air intake expansion part, and attached suction parts are provided on both sides of the electrical box. When the steering parts follow the air intake expansion part to move downward, they are attracted to the attached suction parts, and the steering parts are driven to change direction by the attached suction parts. An air flow dilution portion is provided outside the intermediate partition cabinet, and the air flow dilution portion can absorb the gas discharged from the intermediate partition cabinet, and the air flow dilution portion can mix the inert gas with the leaked gas and discharge the mixed gas.

[0008] Furthermore, the expansion part can be composed of an expansion part, a protective part and an air intake part. The connecting end of the inductive direct push part is interconnected with the middle of the inner top of the protective part. An expansion part is provided on the inner side of the protective part. An air intake part is provided on the inner side of the expansion part. The air intake part and the protective part are interconnected. When the connecting end of the inductive direct push part moves and approaches the outside of the electrical box, the air intake part and the protective part can be mounted on the outside of the electrical box.

[0009] Furthermore, the air intake member can absorb gas overflowing from the outer surface of the electrical box, and the air intake member can introduce the absorbed gas into the interior of the expansion member, so that the expansion member expands between the protective member and the air intake member.

[0010] Furthermore, the single-sided cross-sectional area of ​​the protective member and the air inlet member is equal to the cross-sectional area of ​​the electrical box.

[0011] Furthermore, the steering part is composed of a rotating part and an adapter part, the adapter part is fixedly connected to the outside of the protective part, the rotating part and the adapter part are rotationally connected, and the one-way length of the rotating part is equal to the distance between the partition cabinet and the electrical box.

[0012] Furthermore, the attached attraction part is composed of a passive telescopic part and a fitting part. The fitting parts are fixedly arranged on both sides of the electrical box. A passive telescopic part is arranged at the upper end of the inner side of the fitting part. The axis of the passive telescopic part and the geometric center of the rotating part are on the same straight line. The top end of the passive telescopic part can actively attract the corresponding end of the rotating part.

[0013] Furthermore, the air flow dilution part can be composed of an air guide, an air gathering part and a processing part. The air guide is arranged in the middle of the top of the partition cabinet, the air gathering part is provided on the outside of the partition cabinet, and the processing part is provided on the back of the air gathering part.

[0014] Furthermore, the air guide member guides the overflowed gas from the partition cabinet into the interior of the air gathering member, and the top of the air guide member does not contact the upper end of the interior of the air gathering member.

[0015] Furthermore, the gas gathering member is filled with an inert gas, and the inert gas can be set to nitrogen.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The design of the air intake expansion portion in this invention effectively absorbs gas that overflows from the exterior of the electrical box. The epoxy resin isolation cover, airbag, guide clamp frame, and air guide grooves work together. When a small amount of protective gas overflows from the electrical box, an insulating protective layer is formed on the exterior through the gas outlet pipe. This design not only collects and processes the leaked gas in a timely manner, but also uses the collected gas to form a protective barrier, enhancing the insulation performance of the electrical box, reducing safety risks caused by gas leakage, and improving the safety and stability of the power cabinet operation. 2. The design of the steering portion and attached suction portion in this invention significantly enhances the stability of the electrical box's installation structure during gas leaks. The V-shaped support plate, swivel block, iron block, telescopic cylinder, and magnetic block work together. When the epoxy resin shield descends, the magnetic attraction drives the V-shaped support plate to rotate and support it between the epoxy resin shield and the built-in cabinet. This design effectively prevents the electrical box from shaking or shifting due to factors such as pressure changes caused by gas leaks, ensuring the relative position of electrical equipment within the power cabinet remains stable and preventing failures caused by structural instability. 3. The setting of the gas dilution part in the present invention realizes the effective treatment of the gas overflowing from the middle partition cabinet. The gas guide part, gas gathering part and processing part cooperate with each other to introduce the gas into the external cabinet filled with nitrogen through the suction pipe, built-in air pump, valve pipe, etc. The nitrogen can not only neutralize the toxicity of the protective gas, but also reduce the temperature and lower the temperature of the electrical equipment inside the middle partition cabinet. Finally, the mixed gas is sent to the gas filter tower body for treatment, which not only reduces the emission of harmful gases, but also reduces the operating temperature of the equipment, extends the service life of the equipment in the power cabinet, and improves the reliability of the overall operation of the power cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the insulated pressure-resistant power cabinet of the present invention; Figure 2 This is a schematic diagram of the detailed internal structure of the insulated pressure-resistant power cabinet of the present invention; Figure 3 This is a schematic diagram of the side structure of the insulated pressure-resistant power cabinet of the present invention; Figure 4 This is a schematic diagram of the top view of the insulating pressure-resistant power cabinet of the present invention; Figure 5 This is a schematic diagram of the combined structure of the electrical box and related components of the present invention; Figure 6 This is a schematic diagram of the combined structure of the air intake expansion part and the steering part of the present invention; Figure 7This is a schematic diagram of the combined structure of the air intake expansion portion and the steering portion from another perspective of the present invention.

[0018] In the figure: 1. External cabinet; 2. Internal cabinet; 3. Partition cabinet; 4. Air filter tower body; 5. Valve pipe; 6. Internal air pump; 7. Epoxy resin isolation cover; 8. Electrical box; 9. Air box; 10. Air bag; 11. Guide clamp frame; 12. Intake pipe; 13. Rotating trough block; 14. V-shaped support plate; 15. Iron block; 16. Magnetic block; 17. Telescopic rod; 18. Base; 19. Electric telescopic rod; 20. Exhaust pipe; 21. Transmission pipe; 22. Air pressure sensor; 23. Air guide groove; 24. Air transmission pipe. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 7 As shown, an insulated pressure-resistant power cabinet includes: a partition cabinet 3, a built-in cabinet 2 is arranged inside the partition cabinet 3, an air box 9 is arranged at the lower end of the built-in cabinet 2, and an electrical box 8 is arranged on the top of the air box 9; An analog-to-digital conversion unit is provided at the upper end of the interior of the electrical box 8, and the analog-to-digital conversion unit can detect changes in the air pressure value inside the electrical box 8. An inductive direct push unit is provided at the upper end of the exterior of the electrical box 8, and the analog-to-digital conversion unit can send a start signal to the inductive direct push unit, so that the inductive direct push unit extends its length. Among them, the analog-to-digital conversion part can be set as an air pressure sensor 22, and the air pressure sensor 22 can detect the air pressure intensity of sulfur hexafluoride gas inside the electrical box 8. When sulfur hexafluoride gas leaks inside the electrical box 8 and the air pressure value inside the electrical box 8 begins to decrease, the air pressure sensor 22 starts to send a start signal to the control center of the inductive direct push part. The inductive direct push part can be set as an electric telescopic rod 19, so that the inductive direct push part starts to work.

[0021] The upper end of the induction direct push portion is provided with an air intake expansion portion, which can move up and down with the induction direct push portion, and can absorb overflowed gas when the air intake expansion portion is sleeved on the outside of the electrical box 8; Steering parts are symmetrically arranged on both sides of the air intake expansion part, and attached suction parts are arranged on both sides of the electrical box 8. When the steering parts follow the air intake expansion part to move downward, they engage with the attached suction parts, and the steering parts are driven by the attached suction parts to change direction. An air flow dilution portion is provided outside the intermediate cabinet 3 , and the air flow dilution portion can absorb the gas discharged from the intermediate cabinet 3 , and can mix the inert gas with the leaked gas and discharge the mixed gas.

[0022] Example 1: Please refer to Figures 1 to 7 The air intake expansion part can be composed of an expansion part, a protective part and an air intake part. The connecting end of the inductive direct push part is connected to the middle of the inner top of the protective part. An expansion part is provided on the inside of the protective part, and an air intake part is provided on the inside of the expansion part. The air intake part and the protective part are connected to each other. When the connecting end of the inductive direct push part moves and approaches the outside of the electrical box 8, the air intake part and the protective part can be mounted on the outside of the electrical box 8.

[0023] Among them, the protective part can be set as an epoxy resin isolation cover 7, the expansion part can be set as an airbag 10, and the air intake part can be composed of a guide clamping frame 11 and an air guide groove 23. A plurality of air guide grooves 23 are provided on the inner side of the guide clamping frame 11, and an airbag 10 is provided on the outside of the guide clamping frame 11. An epoxy resin isolation cover 7 is provided on the outside of the airbag 10. The airbag 10 is placed in the gap between the airbag 10 and the guide clamping frame 11. The electric telescopic rod 19 drives the epoxy resin isolation cover 7 to move downward and cover the outside of the electrical box 8. At the same time, the air guide groove 23 is close to the outside of the electrical box 8. When protective gas overflows from the outside of the electrical box 8, the air guide groove 23 on the inside of the guide clamping frame 11 absorbs the gas.

[0024] The air intake member can absorb the gas overflowing from the surface of the electrical box 8, and the air intake member can introduce the absorbed gas into the interior of the expansion member, so that the expansion member expands between the protective member and the air intake member.

[0025] Among them, since the air guide groove 23 is connected to the outside of the airbag 10 after being about the inner side of the guide clamp frame 11, the air guide groove 23 can introduce the protective gas into the interior of the airbag 10. At this time, the interior of the airbag 10 is filled with gas and expanded. Because the bottom of the front of the airbag 10 is provided with an air outlet pipe 20, when the airbag 10 and the guide clamp frame 11 follow the epoxy resin isolation cover 7 to descend to the outside of the electrical box 8, and the output port of the air outlet pipe 20 is flush with the lower end of the outside of the electrical box 8, because a pressure valve is provided at the connection between the air outlet pipe 20 and the airbag 10, when the amount of gas inside the airbag 10 is small, that is, a small amount of protective gas overflows from the electrical box 8, the pressure valve opens, and at this time a small amount of protective gas forms an insulating protective layer around the outside of the electrical box 8 from the air outlet pipe 20.

[0026] The single-side cross-sectional area of ​​the protective member and the air intake member is larger than the cross-sectional area of ​​the electrical box 8 .

[0027] The outer area of ​​the guide clamp frame 11 and the epoxy resin isolation cover 7 is slightly larger than the outer area of ​​the electrical box 8 , so that the protective gas discharged from the gas outlet pipe 20 can form a protective layer outside the electrical box 8 .

[0028] Example 2: Please refer to Figures 1 to 7 The steering part is composed of a rotating part and an adapter part. The adapter part is fixedly connected to the outside of the protective part, the rotating part and the adapter part are rotationally connected, and the one-way length of the rotating part is equal to the distance between the partition cabinet 3 and the electrical box 8.

[0029] Among them, the rotating part can be set as a V-shaped support plate 14, the adapter can be composed of a rotation groove block 13 and an iron block 15, and the rotation groove blocks 13 are set on both sides of the outside of the epoxy resin isolation cover 7. A rotating rod is set horizontally on the inside of the rotation groove block 13, and a V-shaped support plate 14 is set on the outside of the rotating rod. An iron block 15 is set at the bottom of the V-shaped support plate 14. The V-shaped support plate 14 can be rotated on the outside of the rotating rod set on the inside of the rotation groove block 13, and the V-shaped support plate 14 presents a V-shaped structure as a whole. When the V-shaped support plate 14 is rotated to 90° to the downward side, the part of the outside of the V-shaped support plate 14 except where the iron block 15 is located can be placed horizontally on both sides of the electrical box 8, and the structural length of the part of the outside of the V-shaped support plate 14 except where the iron block 15 is located is equal to the distance from the outside of the electrical box 8 to the inside of the built-in cabinet 2.

[0030] The attached attraction part is composed of a passive telescopic part and a fitting part. The fitting parts are fixed on both sides of the electrical box 8. A passive telescopic part is provided at the upper end of the inner side of the fitting part. The axis of the passive telescopic part and the geometric center of the rotating part are on the same straight line. The top of the passive telescopic part can actively attract the corresponding end of the rotating part.

[0031] Among them, the passive telescopic part can be composed of a telescopic cylinder 17 and a magnetic block 16, and the fitting can be set as a base 18. Bases 18 are provided on both sides of the air box 9, and the installation axis of the base 18 must be in the same straight line with the installation axis of the rotating slot block 13. The base 18 has an L-shaped structure. The top of the base 18 is provided with a telescopic cylinder 17, and the top of the telescopic cylinder 17 is provided with a magnetic block 16. The magnetic block 16 can move up and down following the telescopic activity of the telescopic cylinder 17. When the epoxy resin isolation cover 7 drops to the outside of the electrical box 8, the iron block 15 at the bottom of the V-shaped support plate 14 is telescopically extended. The magnetic block 16 on the top of the tube 17 is attracted. At this time, the telescopic tube 17 is extended by the upward force of the magnetic block 16, and the iron block 15 is attracted by the magnetic block 16 to drive the V-shaped support plate 14 to rotate. When the V-shaped support plate 14 rotates and forms a vertical angle with the epoxy resin isolation cover 7, the iron block 15 and the magnetic block 16 are attracted and connected to each other. At this time, the part of the outside of the V-shaped support plate 14 except where the iron block 15 is located is supported between the epoxy resin isolation cover 7 and the built-in cabinet 2, so as to further maintain the stability of the installation structure when the protective gas leaks from the electrical box 8.

[0032] Example 3: Please refer to Figures 1 to 7The air flow dilution part can be composed of an air guide, an air gathering part and a processing part. The air guide is arranged in the middle of the top of the partition cabinet 3. The air gathering part is provided on the outside of the partition cabinet 3, and the processing part is provided on the back of the air gathering part.

[0033] Among them, the air guide part can be composed of an intake pipe 12, a built-in air pump 6 and a valve pipe 5, the gas gathering part can be set as an external cabinet 1, and the processing part can be composed of a transmission pipe 21 and an air filter tower body 4. An intake pipe 12 is provided on one side of the top of the air bag 10, and one side of the intake pipe 12 is connected to the built-in air pump 6. A gas transmission pipe 24 is provided on the top of the built-in air pump 6, and a valve pipe 5 is provided on the upper end of the outside of the built-in air pump 6. The valve pipe 5 and the top of the middle partition cabinet 3 are vertically connected. An external cabinet 1 is provided on the outside of the middle partition cabinet 3, and the rear end of the external cabinet 1 is connected to the transmission pipe 21, and one end of the transmission pipe 21 is connected to the air filter tower body 4.

[0034] The air guide member guides the overflow gas of the partition cabinet 3 into the interior of the air gathering member, and the top of the air guide member does not contact the upper end of the interior of the air gathering member.

[0035] Among them, because a pressure valve is provided at the connection between the suction pipe 12 and the airbag 10, when the mass of the gas inside the airbag 10 is too large and the degree of expansion of the airbag 10 is too large, the pressure valve between the suction pipe 12 and the airbag 10 opens, and the built-in air pump 6 is started at the same time. The built-in air pump 6 begins to draw a large amount of gas transmitted from the suction pipe 12 into the air supply pipe 24, and the air supply pipe 24 then introduces a large amount of gas into the interior of the valve pipe 5. However, only a one-way valve is provided on the inside of the valve pipe 5, so the valve pipe 5 can discharge the protective gas discharged from the air supply pipe 24 for a long time.

[0036] The interior of the gas gathering piece is filled with an inert gas, which can be nitrogen.

[0037] Among them, the interior of the external cabinet 1 is filled with nitrogen, which can not only neutralize the toxicity of the protective gas, but also has a certain cooling effect. When the valve pipe 5 discharges a large amount of protective gas, the nitrogen inside the external cabinet 1 can reduce the concentration of the protective gas, and the nitrogen continues to be on the outside of the middle partition cabinet 3, so a cooling layer is also formed on the outside of the middle partition cabinet 3, thereby reducing the temperature of multiple electrical equipment inside the middle partition cabinet 3. Finally, a pressure valve with a larger preset value is provided between the transmission pipe 21 and the external cabinet 1. When the amount of mixed gas inside the external cabinet 1 reaches a larger value, the pressure valve opens, and the transmission pipe 21 sends the mixed gas into the interior of the gas filter tower body 4 for treatment.

[0038] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. An insulated pressure-resistant power cabinet, comprising: The middle partition cabinet (3) is characterized in that a built-in cabinet (2) is provided inside the middle partition cabinet (3), an air box (9) is provided at the lower end of the built-in cabinet (2), and an electrical box (8) is provided on the top of the air box (9); An analog-to-digital conversion unit is provided at the upper end of the interior of the electrical box (8), and the analog-to-digital conversion unit can detect changes in the air pressure value inside the electrical box (8). An inductive direct push unit is provided at the upper end of the exterior of the electrical box (8), and the analog-to-digital conversion unit can send a start signal to the inductive direct push unit, so that the inductive direct push unit extends in length. An air intake expansion portion is provided at the upper end of the induction direct push portion, and the air intake expansion portion can move up and down following the induction direct push portion, and can absorb overflowed gas when the air intake expansion portion is sleeved on the outside of the electrical box (8); Steering parts are symmetrically provided on both sides of the air intake expansion part, and attached suction parts are provided on both sides of the electrical box (8). When the steering parts follow the air intake expansion part downward, they engage with the attached suction parts, and the steering parts are driven by the attached suction parts to change direction. An air flow dilution portion is provided outside the intermediate partition cabinet (3), and the air flow dilution portion can absorb the gas discharged from the intermediate partition cabinet (3), and the air flow dilution portion can mix the inert gas with the leaked gas and discharge the mixed gas.

2. The insulated pressure-resistant power cabinet according to claim 1, characterized in that: The air intake expansion part can be composed of an expansion part, a protective part and an air intake part. The connection end of the induction direct push part is connected to the middle of the top of the inner side of the protective part. The protective part is provided with an expansion part on the inner side. The air intake part is provided on the inner side of the expansion part. The air intake part and the protective part are connected to each other. When the connection end of the induction direct push part moves and approaches the outside of the electrical box (8), the air intake part and the protective part can be sleeved on the outside of the electrical box (8).

3. The insulated pressure-resistant power cabinet according to claim 2, characterized in that: The air intake member can absorb gas overflowing from the surface of the electrical box (8), and the air intake member can introduce the absorbed gas into the interior of the expansion member, so that the expansion member expands between the protective member and the air intake member.

4. The insulated pressure-resistant power cabinet according to claim 2, characterized in that: The single-sided cross-sectional area of ​​the protective member and the air inlet member is equal to the cross-sectional area of ​​the electrical box (8).

5. The insulated pressure-resistant power cabinet according to claim 1, characterized in that: The steering portion is composed of a rotating part and an adapter part, the adapter part is fixedly connected to the outside of the protective part, the rotating part and the adapter part are rotationally connected, and the one-way length of the rotating part is equal to the distance between the partition cabinet (3) and the electrical box (8).

6. The insulated pressure-resistant power cabinet according to claim 1, characterized in that: The attached attraction portion is composed of a passive telescopic part and a fitting part. The fitting parts are fixedly arranged on both sides of the electrical box (8). The upper end of the inner side of the fitting part is provided with a passive telescopic part. The axis of the passive telescopic part and the geometric center of the rotating part are on the same straight line. The top end of the passive telescopic part can actively attract the corresponding end of the rotating part.

7. The insulated pressure-resistant power cabinet according to claim 1, characterized in that: The air flow dilution part can be composed of an air guide, an air gathering part and a processing part. The air guide is arranged in the middle of the top of the middle partition cabinet (3). The outside of the middle partition cabinet (3) is provided with an air gathering part, and the back of the air gathering part is provided with a processing part.

8. The insulated pressure-resistant power cabinet according to claim 7, characterized in that: The air guide member guides the overflow gas of the partition cabinet (3) into the interior of the air gathering member, and the top of the air guide member does not contact the upper end of the interior of the air gathering member.

9. The insulated pressure-resistant power cabinet according to claim 7, characterized in that: The gas gathering member is filled with an inert gas, and the inert gas can be nitrogen.

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