CN214574059U - Outdoor transformer substation cable trench - Google Patents
Outdoor transformer substation cable trench Download PDFInfo
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- CN214574059U CN214574059U CN202022783539.2U CN202022783539U CN214574059U CN 214574059 U CN214574059 U CN 214574059U CN 202022783539 U CN202022783539 U CN 202022783539U CN 214574059 U CN214574059 U CN 214574059U
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Abstract
The utility model discloses an outdoor transformer substation's cable pit, including cable pit both sides wall, cable pit end and cable pit apron, set up the water pipe along cable pit length direction interval, the water pipe is established respectively and is extended from ground to the cable pit end in the cable pit both sides wall, and the water pipe water inlet is established in place rubble layer bottom, and the water pipe delivery port stretches out from the cable pit bottom. The water passing pipe is embedded in the wall of the cable trench, or the U-shaped pipe is embedded in the wall and the bottom of the cable trench to communicate the water facing side and the back water side of the cable trench, station rainwater on the water facing side and the back water side of the cable trench is led to a drainage system or directly seeps into the ground, so that the cable trench ensures the clearance of the cable trench on the premise of having the water passing capacity, the depth of the cable trench is further reduced, and the engineering cost is reduced.
Description
Technical Field
The utility model relates to a technical building structure field especially relates to an outdoor substation cable pit.
Background
The in-station electrical equipment of outdoor transformer substation is usually arranged in the open air, and criss-cross cable trenches are often arranged between the equipment for cable connection. In order to prevent rainwater on a site from flowing into a cable trench body, in the construction of the power transformation project of the existing national power grid, the height of the wall of the cable trench wall is about 100mm higher than the top surface of site gravels (the thickness of the site gravels is generally 150mm, and the bottom of the gravels is generally a pseudo-ginseng grey soil cushion layer with the thickness of 300 mm) according to the requirements of the national grid standard process, so that the site of a transformer substation is divided into a plurality of areas. In order to avoid the situation that rainwater in the site is collected on two sides of the cable trench, water passing plates are required to be arranged at the top of the cable trench according to a certain distance, and the bottom elevation of each water passing plate is the same as that of ground crushed stone.
For the cable support of easy to assemble, the electrical technology specialty generally can put forward the headroom requirement to the cable pit, for satisfying the headroom requirement, when carrying out cable pit cross section design, civil engineering engineer often need deduct the height of trench cover bottom to crossing the bottom of water board, artificially make the degree of depth increase 250~300mm of cable pit, increased the earthwork excavation work load, increased reinforced concrete engineering volume, caused certain waste. On the other hand, for the ponding of discharge cable pit bottom, often need establish the water drainage tank in cable pit bottom, set up the sump pit at every certain distance, discharge ponding through sump pit bottom drain pipe, behind the cable pit degree of depth deepening, the elevation in sump pit bottom also can reduce, and the drain pipe must pass through from the cable pit bottom, causes the interior drainage system of station whole deepening, and the increase cost has increaseed the construction degree of difficulty.
Therefore, the existing cable trench water passing trough needs to be improved, so that the clearance of the cable trench can be ensured on the premise of having the water passing capacity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, provide a cable pit suitable for outdoor cable pit section of transformer substation designs.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
outdoor transformer substation's cable pit, including cable pit both sides wall, cable pit end and cable pit apron, set up the water pipe along cable pit length direction interval, the water pipe is established respectively and is extended to the cable pit end from ground in the cable pit both sides wall, and the water pipe water inlet is established in place rubble layer bottom, and the water pipe delivery port stretches out from the cable pit bottom.
The cable ditch bottom is equipped with the water pipe, and the water pipe at the cable ditch bottom communicates with the water pipe in the cable ditch wall, and the intercommunication department is equipped with the delivery port.
The water inlet of the water pipe is provided with a filter screen.
The water pipe is a PVC pipe.
The distance between the adjacent water passing pipes of the cable trench wall on the same side is 10-12 m.
The width of the cable trench cover plate is not less than the width of the cable trench.
And waterproof layers are arranged on the inner surfaces of the two side walls of the cable trench.
The utility model discloses following beneficial effect has: the utility model discloses an at the pre-buried water pipe of cable trench wall, perhaps at the pre-buried U type pipe in cable trench wall and ditch bottom, the side of meeting water and the back of the body water side of intercommunication cable trench cause drainage system or direct infiltration underground with the station district rainwater that the cable trench meets water side and back of the body water side, make the cable trench under the prerequisite that possess the ability of crossing water, guaranteed the headroom of cable trench, and then reduced the degree of depth of cable trench, reduced engineering cost.
The width of the cable trench cover plate is not less than the width of the cable trench, ground rainfall in the field can not enter the cable trench and only can enter the ground gravel layer, and therefore the ground rainfall enters the water passing pipe from the water inlet of the water passing pipe and finally is discharged into a drainage system.
In non-rainy seasons, site rainwater is directly discharged into a station rainwater system from a water pipe on the upstream side through a water pipe in the bottom plate of the cable trench or directly seeps into the ground; in rainy season, one part of rainwater is directly discharged into a station area rainwater system or permeates underground, and the other part of rainwater is discharged into a back water surface field through the U-shaped water passing pipe, so that the water passing capacity of the cable trench is ensured while the design of the station area rainwater system is not changed, and accumulated water remained in the water passing pipe can be effectively avoided.
The pre-buried water passing groove and cable trench structure is mainly suitable for the design of the section of an outdoor cable trench of a transformer substation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is another schematic structural diagram of the present invention.
Wherein: 1. the cable trench comprises a cable trench wall, 2 a cable trench bottom, 3 a cable trench cover plate, 4 a water passing pipe, 5 a water inlet, 6 a gravel layer, 7 a water outlet, 8 a filter screen, 9 and a waterproof layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, the cable trench of the outdoor transformer substation comprises two side walls 1 of the cable trench, a bottom 2 of the cable trench and a cover plate 3 of the cable trench, wherein the width of the cover plate of the cable trench is not less than that of the cable trench, so that ground rainfall in a field area cannot enter the cable trench and only can enter a gravel layer of the field area, and then enters a water passing pipe from a water inlet of the water passing pipe; the water passing pipes 4 are arranged at intervals along the length direction of the cable trench, the distance between the water passing pipes adjacent to the same side cable trench wall is 10-12m, the water passing pipes 4 are respectively arranged in two side walls 1 of the cable trench and extend from the ground to the bottom of the cable trench, a water inlet 5 of the water passing pipe 4 is arranged at the bottom of a ground gravel layer 6, a filter screen 8 is further arranged at the water inlet of the water passing pipe, water entering the water passing pipe is primarily filtered through the ground gravel layer, and the water is filtered through a filter screen earphone to prevent the water passing pipe from being blocked; the water passing pipe is a PVC pipe, and the PVC pipe is long in service life, economical and practical; the water outlet 7 of the water pipe extends out of the bottom of the cable trench, and the outlet water directly permeates into the ground, or the water outlet is communicated with a drainage system arranged on one side of the back water surface of the cable trench, and the outlet water is drained into the drainage system; the inner surfaces of the two side walls of the cable trench are also provided with waterproof layers 9 which are waterproof mortar or waterproof coating layers or asphalt waterproof coiled materials and are used for preventing water from seeping due to the fault of a water pipe in the wall of the cable trench and entering the cable trench, so that the dryness in the cable trench is ensured.
As shown in fig. 2, outdoor substation's cable pit, including cable pit both sides wall 1, 2 and cable pit apron 3 at the bottom of the cable pit, set up water pipe 4 along cable pit length direction interval, water pipe establishes respectively in cable pit both sides wall from ground to the bottom of the cable pit extension, 2 also are equipped with water pipe 4 at the bottom of the cable pit, water pipe 4 at the bottom of the cable pit communicates with water pipe 4 in the cable pit wall, the water pipe water inlet is established in place rubble layer bottom, the water pipe delivery port stretches out from the cable pit bottom.
The bottom of the cable trench and two side walls of the cable trench are provided with water passing pipes 4 which are communicated with each other, the water passing pipes which are communicated with each other can be an integrated U-shaped pipe, and a water outlet is reserved at the bottom of the U-shaped pipe; one side of the three-way valve can be connected through an elbow, the other side of the three-way valve is connected through a tee, and one end of the tee is provided with a water outlet; the two sides of the water inlet can be connected through a tee joint, and the water outlets are arranged on the two sides.
Certain slope has been arranged in the transformer substation place, and the higher one side of cable pit both sides relief is for meeting the water side, and the lower one side of relief is the back of the body water side, the utility model discloses a pre-buried water pipe in cable pit wall, perhaps at cable pit wall and ditch bottom pre-buried U type pipe, the side of meeting the water and the back of the body water side of intercommunication cable pit cause drainage system or direct infiltration underground with the station district rainwater that the cable pit met water side and back of the body water side, make the cable pit under the prerequisite that possess the ability of swimming, guaranteed the headroom of cable pit, and then reduced the degree of depth of cable pit, reduced engineering cost.
In non-rainy seasons, site rainwater is directly discharged into a station rainwater system from a water pipe on the upstream side through a water pipe in the bottom plate of the cable trench or directly seeps into the ground; in rainy season, one part of rainwater is directly discharged into a station area rainwater system or permeates underground, and the other part of rainwater is discharged into a back water surface field through the U-shaped water passing pipe, so that the water passing capacity of the cable trench is ensured while the design of the station area rainwater system is not changed, and accumulated water remained in the water passing pipe can be effectively avoided.
The utility model discloses a basin and cable pit structure are crossed to pre-buried formula is mainly applicable to the outdoor cable pit section design of transformer substation.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. Outdoor substation's cable pit, including cable pit both sides wall, cable pit end and cable pit apron, its characterized in that: set up the water pipe along cable pit length direction interval, the water pipe is established respectively and is extended to the cable pit bottom from ground in the cable pit both sides wall, and the water pipe water inlet is established in place rubble layer bottom, and the water pipe delivery port stretches out from the cable pit bottom.
2. The outdoor substation cable trench of claim 1, wherein: the cable trench bottom is provided with a water pipe, the water pipe at the cable trench bottom is communicated with the water pipe in the cable trench wall, and a water outlet is arranged at the communicated position.
3. The outdoor substation cable trench of claim 1 or 2, characterized in that: the water inlet of the water pipe is provided with a filter screen.
4. The outdoor substation cable trench of claim 1 or 2, characterized in that: the water pipe is a PVC pipe.
5. The outdoor substation cable trench of claim 1, wherein: the distance between the adjacent water passing pipes of the cable trench wall on the same side is 10-12 m.
6. The outdoor substation cable trench of claim 1, wherein: the width of the cable trench cover plate is not less than the width of the cable trench.
7. The outdoor substation cable trench of claim 1, wherein: and waterproof layers are arranged on the inner surfaces of the two side walls of the cable trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783539.2U CN214574059U (en) | 2020-11-26 | 2020-11-26 | Outdoor transformer substation cable trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783539.2U CN214574059U (en) | 2020-11-26 | 2020-11-26 | Outdoor transformer substation cable trench |
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| Publication Number | Publication Date |
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| CN214574059U true CN214574059U (en) | 2021-11-02 |
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| CN202022783539.2U Active CN214574059U (en) | 2020-11-26 | 2020-11-26 | Outdoor transformer substation cable trench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960743A (en) * | 2022-04-19 | 2022-08-30 | 山东建筑大学 | Water-through subway station and construction method |
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2020
- 2020-11-26 CN CN202022783539.2U patent/CN214574059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960743A (en) * | 2022-04-19 | 2022-08-30 | 山东建筑大学 | Water-through subway station and construction method |
| CN114960743B (en) * | 2022-04-19 | 2024-02-09 | 山东建筑大学 | Water-through subway station and construction method |
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