Solid insulation metal closed type ring main unit

Abstract

The utility model provides a solid insulation metal closed type ring main unit, which belongs to the ring main unit technical field, and comprises a pedestal, a ring main unit body, a door body, a heat radiation port and a protection layer, the ring main unit body is arranged above the pedestal, the door body is arranged on the outer side surface of the ring main unit body, the heat radiation port is arranged below the outer side surface of the door body in a penetrating manner, and the protection layer is arranged below the door body. A protective layer is fixedly arranged on the inner side surface of the ring main unit body, and a hollow cavity is formed in the center of the protective layer; according to the utility model, the inner side of the ring main unit body is provided with the protection layer, the protection layer is made of an epoxy resin material, the insulation performance is good, and the drying agent in the drying box adsorbs water vapor in the air in the ring main unit body, thereby preventing the interior of the ring main unit body from being moist to cause the reduction of the insulation performance. And air in the base is pumped out through the vacuumizing pump, so that gas in the hollow cavity is thinned, the situation that a protective layer is broken down by an arc is reduced, and the insulativity of the ring main unit body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinet monitoring, in particular to a solid insulation metal closed type ring network cabinet. Background Art

[0002] In the prior art, solid-insulated metal-enclosed ring main unit generally uses vacuum or SF6 gas to seal and insulate the load switch. Since SF6 is toxic after arc extinguishing and is easy to leak, the sealing requirements of the fully enclosed ring main unit using SF6 gas are high. In addition, the metal ring main unit itself is conductive. When SF6 leaks from its load switch, it will affect the insulation, causing the metal ring main unit itself to be charged, which is prone to the risk of electric shock. Therefore, a solid-insulated metal-enclosed ring main unit is designed to solve the above problems. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a solid insulated metal closed ring network cabinet.

[0004] The technical problem to be solved by the utility model is to provide a solid insulated metal closed ring main unit. The metal ring main unit cabinet has insulation properties, and when sulfur hexafluoride leaks from the load switch, an alarm is given through an alarm device, and adsorption is performed through a sulfur hexafluoride detection adsorption component, which has good practicality.

[0005] The utility model provides a solid insulated metal closed ring network cabinet, comprising: a base, a ring network cabinet body, a door body, a heat dissipation port and a protective layer, wherein the ring network cabinet body is installed above the base, the door body is installed on the outer surface of the ring network cabinet body, the heat dissipation port is penetrated below the outer surface of the door body, the inner surface of the ring network cabinet body is fixedly provided with a protective layer, the center of the protective layer is provided with a hollow cavity, a drying box is fixedly provided at the inner bottom of the ring network cabinet body, the base is provided in a hollow box shape, and a vacuum pump is fixedly provided on the left side of the interior of the base, and the exhaust end of the vacuum pump penetrates the outer side of the base, and a connecting pipe is provided between the hollow cavity and the interior of the base.

[0006] Preferably, the protective layer is made of epoxy resin, and a desiccant is contained in the drying box.

[0007] Preferably, a partition is fixedly provided on the upper inner side of the ring main unit body, a load switch is installed on the partition, a sulfur hexafluoride detector is fixedly provided on the right side of the upper surface of the partition, an alarm is installed on the top of the ring main unit body, a one-way valve is penetrated through the upper right side of the partition, and the one-way valve passes through the hollow cavity.

[0008] Preferably, the sulfur hexafluoride detector, alarm and one-way valve are all electrically connected to the power supply of the ring main unit cabinet through a controller.

[0009] Preferably, the base is in the form of a box structure with an opening on the right side, and a sulfur hexafluoride detection and adsorption component is embedded in the right end of the base, and the sulfur hexafluoride detection and adsorption component includes a mesh box and a sealing plate.

[0010] Preferably, the base and the sealing plate are both made of rubber material, and the side length of the opening at the right end of the base is smaller than the side length of the sealing plate, and the mesh box is filled with sulfur hexafluoride adsorbent.

[0011] Preferably, an air quality detector is provided at the exhaust end of the vacuum pump.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] 1. A protective layer is set on the inner side of the ring network cabinet, and the protective layer is made of epoxy resin with good insulation performance. The desiccant in the drying box adsorbs the water vapor in the air inside the ring network cabinet to prevent the inside of the ring network cabinet from being damp and causing the insulation to decrease. The air in the base is extracted by a vacuum pump to make the gas in the hollow cavity thinner, reduce the situation of arc breakdown of the protective layer, and ensure the insulation of the ring network cabinet itself.

[0014] 2. The load switch in the ring network cabinet is separated from other components by a partition. When sulfur hexafluoride gas leaks in the load switch, the sulfur hexafluoride gas will not pass through the partition and be discharged from the heat dissipation port. The leakage of sulfur hexafluoride gas is sensed by the sulfur hexafluoride detector, and the alarm is controlled by the controller. The one-way valve is opened by the controller to allow the sulfur hexafluoride gas to enter the hollow cavity for storage, preventing the sulfur hexafluoride gas from leaking to the outside, thereby increasing the safety of the ring network cabinet.

[0015] 3. The sulfur hexafluoride entering the hollow cavity enters the base through a connecting pipe, and is adsorbed by the sulfur hexafluoride adsorbent in the net box inside the base, so as to achieve the effect of treating the leaked sulfur hexafluoride. When vacuuming, the air pumped out by the vacuum pump can be tested by an air quality detector to prevent the sulfur hexafluoride content in the base from exceeding the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0019] Figure 3 For the utility model Figure 2 A is an enlarged schematic diagram of the structure.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the base in the utility model.

[0021] Figure 5 For the utility model Figure 2 Enlarged structural diagram at point B.

[0022] [reference numerals]

[0023] 1. Base; 2. Ring main unit body; 3. Door; 4. Heat dissipation port; 6. Drying box; 7. Protective layer; 701. Hollow cavity; 702. Connecting pipe; 8. Partition; 801. Load switch; 9. Sulfur hexafluoride detector; 10. Alarm; 11. Check valve; 12. Vacuum pump; 1201. Air quality detector; 13. Network box; 1301. Sealing plate. DETAILED DESCRIPTION

[0024] Example:

[0025] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides that the technical problem to be solved by the utility model is to provide a solid insulated metal closed ring network cabinet, including: a base 1, a ring network cabinet body 2, a door body 3, a heat dissipation port 4 and a protective layer 7, the ring network cabinet body 2 is installed above the base 1, the outer surface of the ring network cabinet body 2 is installed with the door body 3, the heat dissipation port 4 is penetrated below the outer surface of the door body 3, the inner surface of the ring network cabinet body 2 is fixedly provided with a protective layer 7, a hollow cavity 701 is provided in the center of the protective layer 7, a drying box 6 is fixedly provided at the inner bottom of the ring network cabinet body 2, the base 1 is arranged in a hollow box shape, and a vacuum pump 12 is fixedly provided on the left side of the inside of the base 1, and the exhaust end of the vacuum pump 12 passes through the outside of the base 1, and a connecting pipe 702 is provided between the hollow cavity 701 and the inside of the base.

[0026] During actual use, a protective layer 7 is provided on the inner side of the ring main unit body 2, and the protective layer is made of epoxy resin material with good insulation performance. The desiccant in the drying box 6 adsorbs water vapor in the air in the ring main unit body 2 to prevent moisture inside the ring main unit body 2 from reducing insulation. The air in the base 1 is extracted by the vacuum pump 12 to make the gas in the hollow cavity 701 thinner, thereby reducing the possibility of arc breakdown of the protective layer 7 and ensuring the insulation of the ring main unit body 2 itself.

[0027] In this embodiment, the protective layer 7 is made of epoxy resin, and the drying box 6 is filled with a desiccant, so that the protective layer 7 has good insulation. The desiccant can absorb water vapor in the ring main unit cabinet 2 to prevent moisture inside the ring main unit cabinet 2 from affecting the insulation.

[0028] In this embodiment, refer to Figure 1-Figure 3 As shown, a partition 8 is fixedly installed on the upper inner side of the ring main unit body 2, a load switch 801 is installed on the partition 8, a sulfur hexafluoride detector 9 is fixedly installed on the right side of the upper surface of the partition 8, an alarm 10 is installed on the top of the ring main unit body 2, a one-way valve 11 is penetrated through the upper right side of the partition 8, and the one-way valve 11 penetrates the hollow cavity 701.

[0029] In this embodiment, the sulfur hexafluoride detector 9, the alarm 10 and the one-way valve 11 are all electrically connected to the power supply of the ring main unit cabinet 2 through the controller, so that the controller can control the alarm 10 to sound an alarm and the one-way valve 11 to open.

[0030] The partition 8 separates the load switch 801 in the ring network cabinet 2 from other components. When sulfur hexafluoride gas leaks in the load switch, the sulfur hexafluoride gas will not pass through the partition and be discharged from the heat dissipation port 4, and the leakage of sulfur hexafluoride gas is sensed by the sulfur hexafluoride detector 9. The controller controls the alarm 10 to alarm, and the controller controls the one-way valve to open, so that the sulfur hexafluoride gas enters the hollow cavity 701 for storage, preventing the sulfur hexafluoride gas from leaking to the outside, thereby increasing the safety of the ring network cabinet.

[0031] In this embodiment, refer to Figure 2 , Figure 4 and Figure 5 As shown, the base 1 is a box structure with an opening on the right side, and a sulfur hexafluoride detection adsorption component is embedded in the right end of the base 1. The sulfur hexafluoride detection adsorption component includes a mesh box 13 and a sealing plate 1301.

[0032] In this embodiment, the base 1 and the sealing plate 1301 are both made of rubber material, and the opening side length of the right end of the base 1 is smaller than the side length of the sealing plate 1301. The net box 13 is filled with sulfur hexafluoride adsorbent, which facilitates the sealing plate 1301 to seal the right end of the base 1, and the sulfur hexafluoride adsorbent in the net box 13 can adsorb sulfur hexafluoride.

[0033] In this embodiment, an air quality detector 1201 is provided at the exhaust end of the vacuum pump 12 to facilitate the detection of the quality of the exhaust gas.

[0034] The sulfur hexafluoride that enters the hollow cavity 701 enters the interior of the base 1 through the connecting pipe 702, and is adsorbed by the sulfur hexafluoride adsorbent in the net box 13 inside the base 1, so as to achieve the effect of treating the leaked sulfur hexafluoride. When vacuuming, the air drawn out by the vacuum pump 12 can be detected by the air quality detector 1201 to prevent the sulfur hexafluoride content in the base 1 from exceeding the emission standard.

Claims

1. A solid insulated metal enclosed ring main unit, characterized in that: include: A base (1), a ring network cabinet body (2), a door body (3), a heat dissipation port (4) and a protective layer (7); the ring network cabinet body (2) is installed above the base (1); the door body (3) is installed on the outer surface of the ring network cabinet body (2); the heat dissipation port (4) is provided through the lower part of the outer surface of the door body (3); the inner surface of the ring network cabinet body (2) is fixedly provided with a protective layer (7); a hollow cavity (701) is provided in the center of the protective layer (7); a drying box (6) is fixedly provided at the inner bottom of the ring network cabinet body (2); the base (1) is provided in a hollow box shape; a vacuum pump (12) is fixedly provided on the left side of the interior of the base (1); the exhaust end of the vacuum pump (12) passes through the outer side of the base (1); and a connecting pipe (702) is provided between the hollow cavity (701) and the interior of the base.

2. The solid insulated metal enclosed ring main unit according to claim 1, characterized in that: The protective layer (7) is made of epoxy resin, and the drying box (6) is filled with a desiccant.

3. The solid insulated metal enclosed ring main unit according to claim 2, characterized in that: A partition (8) is fixedly arranged on the upper inner side of the ring network cabinet body (2), a load switch (801) is installed on the partition (8), a sulfur hexafluoride detector (9) is fixedly arranged on the right side of the upper surface of the partition (8), an alarm (10) is installed on the top of the ring network cabinet body (2), a one-way valve (11) is penetrated through the upper right side of the partition (8), and the one-way valve (11) penetrates the hollow cavity (701).

4. The solid insulated metal enclosed ring main unit according to claim 3, characterized in that: The sulfur hexafluoride detector (9), the alarm (10) and the one-way valve (11) are all electrically connected to the power supply of the ring main cabinet (2) via a controller.

5. The solid insulated metal enclosed ring main unit according to claim 4, characterized in that: The base (1) is in the form of a box structure with an opening on the right side, and a sulfur hexafluoride detection and adsorption component is embedded in the right end of the base (1), wherein the sulfur hexafluoride detection and adsorption component comprises a mesh box (13) and a sealing plate (1301).

6. The solid insulated metal enclosed ring main unit according to claim 5, characterized in that: The base (1) and the sealing plate (1301) are both made of rubber material, and the side length of the opening at the right end of the base (1) is smaller than the side length of the sealing plate (1301). The net box (13) is filled with sulfur hexafluoride adsorbent.

7. The solid insulated metal enclosed ring main unit according to claim 6, characterized in that: An air quality detector (1201) is provided at the exhaust end of the vacuum pump (12).

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