CN217642328U

CN217642328U - Outdoor 10KV floor type metering box construction structure

Info

Publication number: CN217642328U
Application number: CN202221667916.9U
Authority: CN
Inventors: 钱勇; 钱叶; 刘和东
Original assignee: Sichuan Yonglian Power Equipment Co ltd
Current assignee: Sichuan Yonglian Power Equipment Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-21
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to an outdoor 10KV floor type metering box construction structure, which comprises a metering box and a foundation, wherein the foundation comprises a bottom plate and 4 side plates, the bottom plate and the 4 side plates are enclosed into a cavity, the side plates are provided with wire inlet holes and wire outlet holes, and the bottom plate is provided with a water accumulation pit; the upper port of the cavity is divided into an installation area and a maintenance area through a first cross beam, a second cross beam is arranged at the top of a side plate of the installation area, and the metering box is installed on the first cross beam and the second cross beam; the top of the side plate of the maintenance area is provided with a detachable cover plate. The utility model discloses a reserve the maintenance area, when needs overhaul business turn over cable or basis, when maintaining, can open the apron, inside getting into the cavity, can overhaul and maintain. When the rainfall is great and leads to the inside darker ponding that has of cavity, can open the apron, put into the cavity with pumping equipment and draw water, prevent that ponding from flooding the cable. After the maintenance or the pumping and drainage is finished, the cover plate is covered, and the operation is convenient.

Description

Outdoor 10KV floor type metering box construction structure

Technical Field

The utility model belongs to the technical field of the batch meter construction technology, especially, outdoor 10KV console mode batch meter construction structures.

Background

A10 KV floor type metering box and an 800kVA box transformer substation are required to be newly installed in a certain shed residential area transformation project, at present, during installation and construction of the floor type metering box, a foundation pit is firstly excavated on the ground, then a foundation is poured, and then the metering box is fixedly installed on the foundation. The area and the batch meter adaptation of foundation ditch, generally speaking, the batch meter can cover whole foundation ditch. The cable inlet and outlet of the metering box is generally that a cable trench is arranged on one side of a foundation pit, and the cable is arranged in the cable trench below the ground. When the business turn over cable or the basis of batch meter need be overhauld, need excavate once more, lead to overhauing very inconveniently. In addition, because the device is installed outdoors, after rainwater and the like enter a foundation pit, water pumping and drainage are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an outdoor 10KV console mode batch meter construction structures of easily overhauing and draining is provided.

In order to solve the above problem, the utility model adopts the technical scheme that: an outdoor 10KV floor type metering box construction structure comprises a metering box and a foundation,

the foundation comprises a bottom plate and 4 side plates, the bottom plate and the 4 side plates enclose a cavity, the side plates are provided with wire inlet holes and wire outlet holes, and the bottom plate is provided with a water accumulation pit;

the upper port of the cavity is divided into an installation area and a maintenance area through a first cross beam, a second cross beam is arranged at the top of a side plate of the installation area, the tops of the first cross beam and the second cross beam are higher than the ground, and the metering box is installed on the first cross beam and the second cross beam;

and a detachable cover plate is arranged at the top of the side plate of the overhaul area.

Furthermore, threading pipes are arranged in the wire inlet hole and the wire outlet hole.

Furthermore, a ventilation shutter is arranged on the second cross beam.

Furthermore, the number of the second cross beams is three, and the three second cross beams are respectively positioned at the tops of the 3 side plates.

Furthermore, a channel steel is pre-embedded in the upper surface of the second cross beam, the channel steel is in contact with the metering box, and the channel steel is connected with a grounding device.

Further, earthing device includes many vertical settings at the underground earthing pole, links to each other through electrically conductive horizontal pole between the two adjacent earthing poles, the both ends of channel-section steel pass through the earth connection with the earthing pole links to each other.

Further, the inside wall of the side plate of the overhaul area is provided with a ladder stand.

Further, the outer end of entrance hole and wire hole all is provided with the cable pit, the bottom of cable pit is provided with thin sand layer, the upper surface on thin sand layer is provided with backfill soil tamp layer and concrete envelope, backfill soil tamp layer covers the concrete envelope, be provided with the cable pipe in the concrete envelope.

Further, the cover plate is a reinforced concrete plate.

Furthermore, the inside wall of the side plate is provided with a plurality of horizontal cable support beams.

The utility model has the advantages that: the utility model discloses a reserve the maintenance area, when needs overhaul business turn over cable or basis, when maintaining, can open the apron, inside getting into the cavity, can overhaul and maintain. When the rainfall is great and the cavity has deep ponding, can open the apron, put into the cavity with pumping equipment and draw water, prevent that ponding from flooding the cable. After the maintenance or the pumping and drainage is finished, the cover plate is covered, and the operation is convenient.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic diagram of the ground connection of the present invention;

FIG. 4 is a schematic cross-sectional view of a cover plate;

fig. 5 is a schematic view of the cable trench of the present invention;

reference numerals: 1-a metering box; 2-a bottom plate; 3, side plates; 5-a first beam; 6-wire inlet hole; 7-outlet hole; 8-water accumulation pit; 9-a second beam; 10-ground; 11-a cover plate; 12-ventilation shutters; 13-channel steel; 14-earth electrode; 15-ground line; 16-a conductive cross-bar; 17-climbing a ladder; 18-fine sand layer; 19-backfill soil compaction layer; 20-wrapping the concrete pipe; 21-cable duct; 22-cable support beam.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The utility model discloses an outdoor 10KV console mode batch meter construction structures, as shown in fig. 1 and fig. 2, including batch meter 1 and basis, batch meter 1 is the current 10KV console mode batch meter commonly used. The foundation comprises a

bottom plate

2 and 4 side plates 3, wherein the bottom plate 2 and the 4 side plates 3 enclose a cavity. During construction, a foundation pit is firstly excavated on the ground, the bottom of the foundation pit is tamped and leveled, then the bottom plate 2 is poured, and the bottom plate 2 is made of C15 concrete and is 100mm thick. After the strength of the bottom plate 2 reaches the design requirement, 4 side plates 3 are built by adopting MU15 shale standard bricks and M10 cement mortar, and the lower ends of the side plates 3 are positioned on the bottom plate 2. The total thickness of the side plate 3 is 240mm, and after the construction is finished, the inner side wall and the outer side wall of the side plate 3 are coated with cement mortar with the thickness of 20 mm.

The side plate 3 is provided with a wire inlet hole 6 and a wire outlet hole 7, and the bottom plate 2 is provided with a water collecting pit 8. The wire inlet hole 6 and the wire outlet hole 7 are respectively arranged on different side plates 3, and the specific positions are determined according to the cable laying requirements. When the side plate 3 is built, a threading pipe can be pre-buried in the side plate 3 for the convenience of construction, and an inner hole of the threading pipe is used as the threading hole 6 or the wire outlet 7. The threading pipe can adopt a glass fiber reinforced plastic pipe. When carrying out bottom plate 2 and pouring the construction, can reserve a ponding hole 8 at bottom plate 2 upper surface for collect ponding, can set bottom plate 2 upper surface to the inclined plane, ponding hole 8 is located the lower of inclined plane, so that guide water inflow ponding hole 8.

The upper portion port of cavity is separated for installing zone and maintenance area through first crossbeam 5, and 3 tops of curb plate of installing zone are provided with second crossbeam 9, and the equal top of first crossbeam 5 and second crossbeam 9 is higher than ground 10, and batch meter 1 installs in first crossbeam 5 and second crossbeam 9.

First crossbeam 5 is located the intermediate position of cavity, spanes the cavity, and its both ends are located 3 tops of a pair of curb plates that are parallel to each other, and one side of first crossbeam 5 is as the installing zone promptly, and the size of installing zone is confirmed according to batch meter 1's area, and the opposite side of first crossbeam 5 is as overhauing the district, and the size in overhauing the district will satisfy and supply the maintainer business turn over. The sump 8 may be arranged on the floor 2 below the service area to facilitate drainage. Second crossbeam 9 and first crossbeam 5 all adopt reinforced concrete roof beam to improve strength.

After the construction of the side plates 3 is completed, the upper ends of the side plates are basically flush with the ground, then the construction of the second cross beam 9 and the first cross beam 5 can be carried out, the second cross beam 9 and the first cross beam 5 can be prefabricated in advance and then transported to a construction site for installation, and the construction can also be cast in situ. The number of the second beams 9 may be one, and the second beams are arranged in parallel with the first beam 5, and three second beams 9 are provided to ensure stable support of the metering box 1, and the three second beams 9 are respectively located at the tops of the 3 side plates 3. 3 second crossbeams 9 and a first crossbeam 5 constitute rectangular frame, and bearing capacity is strong, supports batch meter 1 jointly, guarantees batch meter 1's stability. The upper surfaces of the second cross beam 9 and the first cross beam 5 are about 300mm higher than the ground 10, so that the metering box 1 is higher than the ground to prevent the metering box 1 from being filled with water in heavy rainy days.

The top of the side plate 3 of the maintenance area is provided with a detachable cover plate 11. The access area can be sealed to apron 11, prevents that personnel or debris from falling into inside the cavity. When the maintenance or the water pumping and draining are needed, the cover plate 11 can be opened, and the maintenance personnel or the water pumping and draining facilities can enter and exit the cavity. The cover plate 11 is made of reinforced concrete plates, as shown in fig. 4, the structural strength is high, and the cover plate can be naturally placed on the top of the side plate 3.

In order to increase the heat dissipation rate of the metering box 1, a ventilation louver 12 is arranged on the second cross beam 9. The ventilation louver 12 can achieve the effects of ventilation and heat dissipation, and can keep the air inside the cavity clean and prevent odor.

In order to facilitate the access of the maintainer to the cavity, a ladder stand 17 is arranged on the inner side wall of the side plate 3 of the maintenance area.

In order to improve the security of batch meter 1, generally need set up earthing device, the utility model discloses in, through the pre-buried channel-section steel 13 of second crossbeam 9 upper surface, channel-section steel 13 and batch meter 1 contact specifically, when installation batch meter 1, can weld channel-section steel 13 and batch meter 1's metal casing. And set up earthing device underground, earthing device is connected to channel-section steel 13, and when electric leakage or static appear, electric charge can pass through channel-section steel 13 and transmit to earthing device, and the leading-in underground by earthing device again.

The grounding device specifically comprises a plurality of vertical grounding electrodes 14 arranged underground, the grounding electrodes 14 can be made of galvanized angle steel, the upper ends of the grounding electrodes 14 are at least 0.9m away from the ground, the two adjacent grounding electrodes 14 are connected through conductive cross rods 16, the conductive cross rods 16 can be made of sections such as galvanized angle steel and galvanized groove steel, the conductive cross rods 16 and the grounding electrodes 14 form a grounding network, and charges can be uniformly conducted into the ground. The two ends of the channel steel 13 are connected to the grounding electrode 14 through a grounding wire 15, the grounding wire 15 may be made of galvanized flat iron, and is bent into a proper shape, as shown in fig. 3, one end of which is welded to the channel steel 13, and the other end is welded to the grounding electrode 14. After the grounding device is constructed, the grounding resistance is detected to ensure that the grounding resistance is less than 4 omega, and if the grounding resistance can not meet the requirements through testing, the grounding electrode 14 is required to be repaired or the grounding wire 15 is required to be lengthened, or a resistance reducing agent is adopted to ensure that the grounding resistance meets the design requirements.

Business turn over line cable need link to each other with other electric power facilities, and at present, the cable generally buries underground in the cable pit, if the cable directly buries underground in soil, harms easily, in order to ensure the security of cable, the utility model discloses all be provided with the cable pit in entrance hole 6 and outlet 7's outer end, as shown in fig. 5, the bottom of cable pit is provided with fine sand layer 18, and the upper surface of fine sand layer 18 is provided with backfill soil tamp layer 19 and concrete bag pipe 20, and backfill soil tamp layer 19 covers concrete bag pipe 20, is provided with cable pipe 21 in the concrete bag pipe 20. The fine sand layer 18 is fine sand with the grain diameter smaller than 2mm, supports the concrete-coated pipe 20 and has the shock absorption function. The concrete-coated pipe 20 is formed by pouring C30 concrete, has high strength, impact resistance, good insulativity, water resistance, electric leakage resistance, capability of preventing mechanical damage of a cable and good protection effect. The cable tube 21 is a PVC tube with the outer diameter of 150mm, is corrosion-resistant and waterproof, and further protects the cable.

In addition, can set up the suggestion stake along the cable pit, the suggestion stake lower extreme is buried underground in backfill soil tamp layer 19, and the suggestion stake lateral wall is write words such as "have the cable down", "forbid excavation", prevents to destroy the cable when carrying out other civil engineering constructions.

The inner side walls of the side plates 3 are provided with a plurality of horizontal cable support beams 22. The cable supporting beam 22 can adopt section bars such as angle steel, builds the one end of the cable supporting beam 22 in the curb plate 3 in advance when building the curb plate 3 by laying bricks or stones, when laying cable, can utilize the cable supporting beam 22 to support the cable, avoids the cable downwarping and contact bottom plate 2, prevents that the cable from soaking.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Outdoor 10KV console mode batch meter construction structures, including batch meter (1) and basis, its characterized in that:

the foundation comprises a bottom plate (2) and 4 side plates (3), the bottom plate (2) and the 4 side plates (3) enclose a cavity, the side plates (3) are provided with wire inlet holes (6) and wire outlet holes (7), and the bottom plate (2) is provided with a water accumulation pit (8);

the upper port of the cavity is divided into an installation area and a maintenance area by a first cross beam (5), a second cross beam (9) is arranged at the top of a side plate (3) of the installation area, the tops of the first cross beam (5) and the second cross beam (9) are higher than the ground (10), and the metering box (1) is installed on the first cross beam (5) and the second cross beam (9);

the top of the side plate (3) of the overhaul area is provided with a detachable cover plate (11).

2. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: threading pipes are arranged in the wire inlet hole (6) and the wire outlet hole (7).

3. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: and a ventilation shutter (12) is arranged on the second cross beam (9).

4. The outdoor 10KV floor type metering box construction structure according to claim 1, characterized in that: the number of the second cross beams (9) is three, and the three second cross beams (9) are respectively positioned at the tops of the 3 side plates (3).

5. The outdoor 10KV floor type metering box construction structure as claimed in claim 1, 2, 3 or 4, characterized in that: channel steel (13) are pre-buried on the upper surface of the second cross beam (9), the channel steel (13) is in contact with the metering box (1), and the channel steel (13) is connected with a grounding device.

6. The outdoor 10KV floor type metering box construction structure of claim 5, wherein: the grounding device comprises a plurality of vertical grounding electrodes (14) arranged underground, two adjacent grounding electrodes (14) are connected through a conductive cross rod (16), and two ends of the channel steel (13) are connected with the grounding electrodes (14) through grounding wires (15).

7. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: a ladder (17) is arranged on the inner side wall of the side plate (3) of the overhaul area.

8. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: the outer end of entrance hole (6) and wire hole (7) all is provided with the cable pit, the bottom of cable pit is provided with thin sand bed (18), the upper surface of thin sand bed (18) is provided with backfill soil tamping layer (19) and concrete bag pipe (20), backfill soil tamping layer (19) cover concrete bag pipe (20), be provided with cable pipe (21) in concrete bag pipe (20).

9. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: the cover plate (11) is a reinforced concrete plate.

10. The outdoor 10KV floor type metering box construction structure of claim 1, characterized in that: and a plurality of horizontal cable supporting beams (22) are arranged on the inner side wall of the side plate (3).