Novel environment-friendly gas insulated looped network box

Abstract

The utility model discloses a novel environment-friendly gas insulated looped network box which comprises a box body. The box doors are arranged on the front face of the box body, the box doors are all hinged to the box body, strip-shaped plates are hinged to one sides of the box doors, and gaps between the strip-shaped plates and the box doors are very small; the first U-shaped pipe and the second U-shaped pipe are arranged on the side edges of the front face and the back face of the box body, the middle of the top end of the first U-shaped pipe and the middle of the top end of the second U-shaped pipe are communicated through a guide pipe, double air suction pumps are arranged in the middle of the guide pipe, and when the box door is opened for overhauling, the box door is opened to drive the strip-shaped plate to press the pressing switch, so that the time delay switch works; after a certain period of time, the double getter pumps are driven to generate ultra-large suction force which is transmitted into the first U-shaped pipe and the second U-shaped pipe, so that gas on the side of the box body is sucked back into the sleeve through the gas holes, the gas is detected by the nitrogen detector, whether leakage occurs or not is judged, and detection can also be performed by manually pressing the pressing switch when maintenance is not performed.

Description

Technical Field

[0001] The utility model relates to a ring network box, in particular to a novel environmentally friendly gas-insulated ring network box. Background Art

[0002] The ring network box is the main distribution equipment for urban power supply. In the entire urban power supply system, when there is an accident or a ring network box needs to be repaired, the incoming lines inside the ring network box can be disconnected to isolate the accident point or the electrical equipment that needs to be repaired. This reduces the scope of the power outage and thus improves the continuity and reliability of power supply.

[0003] Current ring main network boxes all use environmentally friendly gases such as nitrogen as insulating media, which have strong insulation performance. The insulation performance of insulating gas is much stronger than that of air. The electrical clearance of a fully insulated cabinet is much smaller than that of a semi-insulated cabinet. At the same time, due to the small electrical clearance, the size of a fully insulated cabinet is much smaller than that of a semi-insulated cabinet of the same voltage level, and the footprint is small. However, the current environmentally friendly gas insulated ring main network box does not have a gas leakage detection structure, and cannot determine whether gas leakage occurs inside, which affects the overall insulation performance of the equipment. Based on this, a new environmentally friendly gas insulated ring main network box is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a new environmentally friendly gas insulated ring network box to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of environmentally friendly gas-insulated ring network box, comprising a box body; a plurality of box doors placed on the front of the box body, the plurality of box doors are hinged to the box body, a strip plate is hinged on one side of the plurality of box doors, and the gap between the strip plate and the plurality of box doors is very small; a first U-shaped tube and a second U-shaped tube are placed on the front and back sides of the box body, the middle parts of the top ends of the first U-shaped tube and the second U-shaped tube are connected by a conduit, and a double suction pump is provided in the middle part of the conduit.

[0006] As a preferred technical solution of the present invention, an elastic strip is fixedly installed at the connection between the strip plate and the box body.

[0007] As a preferred technical solution of the present invention, a plurality of air holes are provided on the first U-shaped tube and the second U-shaped tube at equal intervals.

[0008] As an optimal technical solution of the present invention, a push switch and a delay switch are fixedly installed in the middle of one side of the box body. The push switch is arranged on one side of the strip plate, and the push switch is electrically connected to the double suction pump through the delay switch.

[0009] As a preferred technical solution of the present invention, a sleeve is installed at the output end of the double-suction pump, a nitrogen detector is fixedly installed at one end of the sleeve, and an exhaust hole is opened on the sleeve.

[0010] As an optimal technical solution of the present invention, columns are fixedly installed on both sides of the top of the box body, and inclined blocks are fixedly installed on the tops of the two columns. The inclined directions of the two inclined blocks are opposite, and rain shields are fixedly installed on the tops of the two inclined blocks.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model is provided with a first U-shaped tube and a second U-shaped tube, and a plurality of air holes are provided on the first U-shaped tube and the second U-shaped tube. The plurality of air holes absorb the gas leaked from the side of the box body. After each maintenance, the leakage that may be caused by the maintenance operation can be detected. When any door of the box is opened for maintenance, the opening of the door will drive the strip plate to press the push switch, so that the delay switch works. After a certain period of time (the set time of the delay switch is the normal maintenance time), after the maintenance is completed, the super large suction force of the double suction pump is used to transmit the gas into the first U-shaped tube and the second U-shaped tube, so that the gas on the side of the box body is sucked back into the interior of the sleeve through the air holes, and finally detected by the nitrogen detector to determine whether a leak has occurred. When no maintenance is performed, regular detection can also be performed by manually pressing the push switch.

[0013] 2. The utility model provides a rain shield to shield the surrounding of the box in outdoor conditions, preventing rainwater from flowing into the interior of the box, or the box from loosening due to strong winds and other weather conditions, which would affect the gas insulation balance inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the double suction pump structure of the utility model;

[0016] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 4 This is a schematic structural diagram of a rain shield according to the present invention.

[0018] In the figure: 1. Box body; 2. Box door; 3. First U-shaped tube; 4. Second U-shaped tube; 5. Air hole; 6. Push switch; 7. Conduit; 8. Column; 9. Double suction pump; 10. Sleeve; 11. Nitrogen detector; 12. Exhaust hole; 13. Strip plate; 14. Elastic strip; 15. Inclined block; 16. Rain shield. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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] See also Figure 1-4 , this utility model provides a new technical solution for environmentally friendly gas insulated ring network box:

[0021] according to Figure 1 、 Figure 2 and Figure 3 、 Figure 4 As shown, a new type of environmentally friendly gas insulated ring network box includes a box body 1; multiple box doors 2 are placed on the front of the box body 1, and the multiple box doors 2 are hinged to the box body 1. A strip plate 13 is hinged on one side of the multiple box doors 2. The strip plate 13 is used to press the push switch 6 each time the box door 2 is opened to drive the push switch 6 to work. The gap between the strip plate 13 and the multiple box doors 2 is very small. If the gap is too large, the box door 2 cannot drive the strip plate 13 to rotate synchronously when it is opened, and press the push switch 6. An elastic strip 14 is fixedly installed at the connection between the strip plate 13 and the box body 1; a first U-shaped tube 3 and a first U-shaped tube 13 are placed on the front and back sides of the box 1. Two U-shaped tubes 4, a plurality of air holes 5 are evenly spaced on the first U-shaped tube 3 and the second U-shaped tube 4, and the air holes 5 can absorb and adsorb the gas on the side of the box body 1. The middle parts of the top ends of the first U-shaped tube 3 and the second U-shaped tube 4 are connected by a conduit 7. A double suction pump 9 is provided in the middle part of the conduit 7, which is used to generate suction to pass the gas on the side of the box body 1 through the air holes 5 and into the interior of the sleeve 10 through the first U-shaped tube 3 and the second U-shaped tube 4, and detect it through the nitrogen detector 11. At the same time, the suction force generated by the double suction pump 9 is large, and the gas at the air holes 5 at the bottom of the first U-shaped tube 3 and the second U-shaped tube 4 can also be adsorbed.

[0022] A push switch 6 and a delay switch are fixedly installed in the middle of one side of the box body 1. The push switch 6 is arranged on one side of the strip plate 13. The push switch 6 is electrically connected to the double suction pump 9 through the delay switch. The delay switch is convenient for driving the double suction pump 9 to work after a certain period of time after the maintenance is completed. The double suction pump 9 absorbs the gas around the box body 1 to detect whether the environmentally friendly insulating gas inside the box body 1 is leaking. A sleeve 10 is installed at the output end of the double suction pump 9. The sleeve 10 is convenient for collecting the gas. A nitrogen detector 11 is fixedly installed at one end of the sleeve 10. The nitrogen detector 11 detects the environmentally friendly insulating gas nitrogen to determine whether a leak occurs. An exhaust hole 12 is opened on the sleeve 10, and the gas inside the sleeve 10 is discharged after the detection.

[0023] Columns 8 are fixedly installed on both sides of the top of the box body 1, and inclined blocks 15 are fixedly installed on the tops of the two columns 8. The inclined directions of the two inclined blocks 15 are opposite. Rain shields 16 are fixedly installed on the tops of the two inclined blocks 15 to shield the box body 1 to prevent rainwater from flowing into the interior of the box body 1, or the box body 1 from becoming loose due to strong winds and other weather conditions, affecting the gas insulation balance inside the box body 1.

[0024] In specific use, the utility model is a new type of environmentally friendly gas insulated ring network box. When the interior of the box body 1 is inspected, one of the box doors 2 is opened. At this time, the gap between any box door 2 and the strip plate 13 on one side is small, which will drive the strip plate 13 to rotate. When it rotates to the extreme position, the strip plate 13 will press the press switch 6. At this time, the press switch 6 works, thereby driving the delay switch to start delaying the driving of the double suction pump 9 to work (the setting time of the delay switch is the normal maintenance time). After the double suction pump 9 works, it generates a relatively large suction force, and the air on the side of the box body 1 is sucked through the several air holes 5 opened on the first U-shaped tube 3 and the second U-shaped tube 4. The gas is sucked into the interior of the first U-shaped tube 3 and the second U-shaped tube 4, and then transmitted to the interior of the sleeve 10 through the conduit 7, and finally detected by the nitrogen detector 11, so as to determine whether there is a gas leakage on the side of the box 1. When the box 1 is not being repaired, the switch 6 can also be manually pressed to operate the above detection process to determine the gas leakage of the box 1. Secondly, during installation, the rain shield 16 is pressed by the two columns 8 at the top of the box 1 to shield the box 1 to prevent rainwater from flowing into the interior of the box 1, or strong winds and other weather conditions from causing the box 1 to loosen and affect the gas insulation balance inside the box 1.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

Claims

1. A new type of environmentally friendly gas insulated ring network box, characterized in that: include: Box (1); A plurality of doors (2) are arranged on the front of the box body (1), the plurality of doors (2) are hinged to the box body (1), a strip plate (13) is hinged on one side of the plurality of doors (2), and a gap between the strip plate (13) and the plurality of doors (2) is very small; A first U-shaped tube (3) and a second U-shaped tube (4) are arranged on the front and back sides of the box body (1), and the middle parts of the top ends of the first U-shaped tube (3) and the second U-shaped tube (4) are connected through a conduit (7), and a double suction pump (9) is provided in the middle part of the conduit (7).

2. The novel environmentally friendly gas insulated ring main box according to claim 1, characterized in that: An elastic strip (14) is fixedly installed at the connection between the strip plate (13) and the box body (1).

3. The novel environmentally friendly gas insulated ring main box according to claim 1 is characterized by: The first U-shaped tube (3) and the second U-shaped tube (4) are provided with a plurality of air holes (5) at equal intervals.

4. The novel environmentally friendly gas insulated ring main box according to claim 1 is characterized by: A push switch (6) and a time delay switch are fixedly installed in the middle of one side of the box body (1), respectively. The push switch (6) is arranged on one side of the strip plate (13), and the push switch (6) is electrically connected to the double suction pump (9) through the time delay switch.

5. The novel environmentally friendly gas insulated ring main box according to claim 1 is characterized by: A sleeve (10) is installed at the output end of the double suction pump (9), a nitrogen detector (11) is fixedly installed at one end of the sleeve (10), and an exhaust hole (12) is opened on the sleeve (10).

6. The novel environmentally friendly gas insulated ring main box according to claim 1, characterized in that: Both sides of the top of the box body (1) are fixedly mounted with upright posts (8), the tops of the two upright posts (8) are fixedly mounted with inclined blocks (15), the inclined directions of the two inclined blocks (15) are opposite, and the tops of the two inclined blocks (15) are fixedly mounted with rain shields (16).

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