CN219086508U - Solid insulation totally-enclosed ring main unit - Google Patents

Abstract

The utility model discloses a solid insulation totally-enclosed ring main unit, which comprises a shell and a refrigerating chamber; the shell is formed by splicing alloy plates, an upper cabinet door and a lower cabinet door are arranged on the front surface of the shell, a maintenance port and a heat dissipation port are arranged at the bottom of the front surface of the shell, the interior of the shell is separated by a partition plate, a relay instrument room is arranged in the top of the shell, a circuit breaker handcart room is arranged below the relay instrument room, a bus room is arranged behind the relay instrument room and the circuit breaker handcart room, a cable room is arranged below the bus room, an air return pipe and an air exhaust pipe are respectively arranged on the inner side wall of the shell below the circuit breaker handcart room, and a plurality of air holes are respectively formed in the air return pipe and the air exhaust pipe; the refrigerator is characterized in that the refrigerator is arranged below the cable chamber, an air pump is arranged in the refrigerator and connected with an air return pipe and an exhaust pipe, allochroic silica gel and a coil are arranged between the air pump and the air return pipe, a semiconductor refrigerator is arranged at the bottom of the coil, a controller is arranged in the refrigerator, and a space which can penetrate through a ground wire is arranged between the refrigerator and the rear wall of the shell.

Description

Solid insulation totally-enclosed ring main unit

Technical Field

The utility model belongs to the technical field of ring main units, and particularly relates to a solid insulation totally-enclosed ring main unit.

Background

The ring main unit is a group of electric equipment for power transmission and distribution, is arranged in a metal or nonmetal insulating cabinet body or is made into an electric equipment for assembling a spacing ring main power supply unit, adopts a load switch and a fuse at the core part, has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like, and is widely applied to power distribution stations and box-type substations of load centers such as urban residential communities, high-rise buildings, large public buildings, factory enterprises and the like. The solid insulation ring main unit is a ring main unit adopting solid insulation materials as main insulation media, and the vacuum arc extinguishing chamber and main conductive loops such as a conductive connection, a disconnecting switch, a grounding switch, a main bus, a branch bus and the like are singly or combined and then are coated and packaged into one or more modules which have certain functions, can be combined again or expanded and have full insulation and full sealing performances, and the surfaces of the modules which can be touched by people are coated with conductive or semiconductive shielding layers and can be directly and reliably grounded.

The solid insulation ring main unit is greatly affected by time-saving climate, the safety and long-time operation stability of electronic equipment are greatly reduced in a humid or high-temperature environment, the load of power distribution equipment is obviously increased in summer, the ring main unit is relatively airtight to cause high-temperature fire disaster, the condensation phenomenon in the main unit is caused by humidity, and potential safety hazards are brought to the safe and stable operation of electrical elements in the ring main unit.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a solid insulation totally-enclosed ring main unit which has the advantages of simple design, automatic dehumidification and cooling functions and effective prevention of running accidents caused by humidity and high temperature.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a solid insulation totally-enclosed ring main unit comprises a shell and a refrigerating chamber; the shell is formed by splicing alloy plates, an upper cabinet door and a lower cabinet door are arranged on the front surface of the shell, a maintenance port and a heat dissipation port are arranged at the bottom of the front surface of the shell, the interior of the shell is separated by a partition plate, a relay instrument room is arranged in the top of the shell, a circuit breaker handcart room is arranged below the relay instrument room, a bus room is arranged behind the relay instrument room and the circuit breaker handcart room, a cable room is arranged below the bus room, an air return pipe and an air exhaust pipe are respectively arranged on the inner side wall of the shell below the circuit breaker handcart room, and a plurality of air holes are respectively formed in the air return pipe and the air exhaust pipe; the refrigerator is characterized in that the refrigerator is arranged below the cable chamber, an air pump is arranged in the refrigerator and connected with an air return pipe and an exhaust pipe, allochroic silica gel and a coil are arranged between the air pump and the air return pipe, a semiconductor refrigerator is arranged at the bottom of the coil, a controller is arranged in the refrigerator, and a space which can penetrate through a ground wire is arranged between the refrigerator and the rear wall of the shell.

Preferably, the alloy plate splicing part of the shell and the edge of the cabinet door are provided with sealing strips.

Preferably, the chambers separated by the partition walls within the housing are all in communication.

Preferably, a temperature detector and a humidity detector are arranged below the circuit breaker handcart room, and the temperature detector and the humidity detector are respectively connected with the controller.

Preferably, the color-changing silica gel is positioned in the square tube, the square tube is attached to the maintenance port, a transparent window is arranged on the square tube, the maintenance port can be used for observing, and the square tube is movably connected with the pipeline.

Preferably, the coil is a square tube.

Preferably, the semiconductor refrigerator consists of a semiconductor refrigerating sheet, a radiating fin and a radiating fan, the semiconductor refrigerator is fixed at the bottom of the refrigerating chamber by a bracket, and the semiconductor refrigerator is connected with the controller.

Preferably, the controller is connected to an air pump.

Compared with the prior art, the utility model has the beneficial effects that: firstly, the structure is simple, the cost is lower, and the manufacturing is easy; secondly, degree of automation is high, has automatic dehumidification, cooling function, effectively prevents that humidity and high temperature from causing the operation accident.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained from the provided drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic diagram of a ring main unit according to the present utility model;

FIG. 2 is a schematic diagram of a cross-section of a ring main unit according to the present utility model;

fig. 3 is a schematic top view of the ring main unit refrigeration chamber of the present utility model.

In the figure: 1. the refrigerator comprises a shell, 2, a refrigerating chamber, 3, a cabinet door, 4, a maintenance port, 5, a heat radiation port, 6, an air return pipe, 7, allochroic silica gel, 8, a semiconductor refrigerator, 9, a bracket, 10, a circuit breaker handcart room, 11, a humidity detector, 12, a coil pipe, 13, a relay instrument room, 14, a cable room, 15, an exhaust pipe, 16, an air pump, 17, a controller, 18, a temperature detector, 19, an air hole, 20 and a partition plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1-3, the present utility model provides a technical solution: a solid insulation totally-enclosed ring main unit comprises a shell 1 and a refrigerating chamber 2; the shell 1 is formed by splicing alloy plates, sealing strips are arranged at the splicing positions of the alloy plates of the shell 1 and the edges of the cabinet door 3, an upper cabinet door 3 and a lower cabinet door 3 are arranged on the front side of the shell 1, a maintenance port 4 and a heat dissipation port 5 are arranged at the bottom of the front side of the shell 1, the interior of the shell 1 is separated by a partition plate 20, chambers separated by the partition plate 20 in the shell 1 are communicated, a relay instrument chamber 13 is arranged in the top of the shell 1, a circuit breaker handcart chamber 10 is arranged below the relay instrument chamber 13, a bus chamber is arranged behind the relay instrument chamber 13 and the circuit breaker handcart chamber 10, a cable chamber 14 is arranged below the bus chamber, an air return pipe 6 and an exhaust pipe 15 are respectively arranged on the inner side wall of the shell 1 below the circuit breaker handcart chamber 10, a temperature detector 18 and a humidity detector 11 are respectively arranged below the circuit breaker handcart chamber 10, the temperature detector 18 and the humidity detector 11 are respectively connected with a controller 17, and a plurality of air holes 19 are respectively arranged on the air return pipe 6 and the exhaust pipe 15; the refrigerating chamber 2 is arranged below the cable chamber 14, the air pump 16 is arranged in the refrigerating chamber 2 and connected with the muffler 6 and the exhaust pipe 15, the color-changing silica gel 7 and the coil 12 are arranged between the air pump 16 and the muffler 6, the color-changing silica gel 7 is arranged in a square tube, fang Fangguan is attached to the maintenance port 4, a transparent window is arranged on the square tube and can be observed through the maintenance port 4, the square tube and a pipeline are movably connected, the coil 12 is a square tube, the bottom of the coil 12 is provided with the semiconductor refrigerator 8, the semiconductor refrigerator 8 consists of a semiconductor refrigerating sheet, a radiating sheet and a radiating fan, the semiconductor refrigerator 8 is fixed at the bottom of the refrigerating chamber 2 by the bracket 9, the semiconductor refrigerator 8 is connected with the controller 17, the controller 17 is arranged in the refrigerating chamber 2 and connected with the air pump 16, and a space which can pass through a grounding wire is arranged between the refrigerating chamber 2 and the rear wall of the shell 1.

Working principle: when the cabinet door 3 is closed, the shell 1 is sealed and isolated from the outside, the general temperature and humidity parameters set in the controller 17 are 28 ℃ and 45%, when the temperature detected by the temperature detector 18 is higher than a set value, the controller 17 controls the semiconductor refrigerator 8 and the air pump 16 to be opened, the semiconductor refrigerator 8 cools the coil 12, the heat generated by the semiconductor refrigerator 8 is blown out of the refrigerating chamber 2 through the heat dissipation port 5 by the heat dissipation fan, the air pump 16 pumps the air in the shell 1 into the square tube filled with the dry pink color-changing silica gel 7 through the air hole 19 of the air suction pipe 15, the cooled coil 12 finally returns to the shell 1 through the air hole 19 on the air return pipe 6 until the detected value falls below the set value, the controller 17 controls the air pump 16 and the semiconductor refrigerator 8 to be closed, when the humidity detected by the humidity detector 11 is higher than the set value, the controller 17 independently controls the air pump 16 to be opened, and the air is dehumidified through the color-changing silica gel 7 and returns to the shell 1 until the humidity detected value is smaller than the set value. After running for a period of time, the color-changing silica gel 7 is observed through a maintenance port, and the color-changing silica gel is replaced if the color-changing silica gel turns blue.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a totally closed looped netowrk cabinet of solid insulation, includes shell (1) and refrigerating chamber (2), its characterized in that: the novel high-voltage power supply is characterized in that the shell (1) is formed by splicing alloy plates, an upper cabinet door (3) and a lower cabinet door (3) are arranged on the front side of the shell (1), a maintenance port (4) and a heat dissipation port (5) are arranged at the bottom of the front side of the shell (1), the interior of the shell (1) is separated by a partition plate (20), a relay instrument room (13) is arranged in the top of the shell (1) and positioned below the cabinet door (3), a circuit breaker handcart room (10) is arranged below the relay instrument room (13), a bus room is arranged behind the relay instrument room (13) and the circuit breaker handcart room (10), a cable room (14) is arranged below the bus room, an air return pipe (6) and an exhaust pipe (15) are respectively arranged on the inner side wall of the shell (1) below the circuit breaker handcart room (10), and a plurality of air holes (19) are respectively arranged on the air return pipe (6) and the exhaust pipe (15); the refrigerator is characterized in that the refrigerator chamber (2) is located below the cable chamber (14), an air pump (16) is arranged in the refrigerator chamber (2) and connected with an air return pipe (6) and an exhaust pipe (15), allochroic silica gel (7) and a coil pipe (12) are arranged between the air pump (16) and the air return pipe (6), a semiconductor refrigerator (8) is arranged at the bottom of the coil pipe (12), a controller (17) is arranged in the refrigerator chamber (2), and a space which can penetrate through a ground wire is arranged between the refrigerator chamber (2) and the rear wall of the shell (1).

2. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the alloy plate splicing part of the shell (1) and the edge of the cabinet door (3) are provided with sealing strips.

3. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the chambers separated by the partition board (20) in the shell (1) are communicated.

4. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: a temperature detector (18) and a humidity detector (11) are arranged below the circuit breaker handcart room (10), and the temperature detector (18) and the humidity detector (11) are respectively connected with a controller (17).

5. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the color-changing silica gel (7) is positioned in the square tube, the square tube is attached to the maintenance port (4), a transparent window is arranged on the square tube, the maintenance port (4) is accessible for observation, and the square tube is movably connected with the pipeline.

6. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the coil pipe (12) is a square pipe.

7. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the semiconductor refrigerator (8) is composed of semiconductor refrigerating sheets, radiating sheets and radiating fans, the semiconductor refrigerator (8) is fixed at the bottom of the refrigerating chamber (2) through a bracket (9), and the semiconductor refrigerator (8) is connected with a controller (17).

8. The solid insulation totally-enclosed ring main unit according to claim 1, wherein: the controller (17) is connected with the air pump (16).

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