Prefabricated transformer substation cable through-wall device

Abstract

The utility model relates to a prefabricated transformer station cable through-wall device which comprises a prefabricated frame shaped like a Chinese character'ri ', the frame shaped like the Chinese character'ri' is composed of a rectangular frame body and a fireproof partition plate in the middle, a prefabricated upper through-wall is embedded in the upper area of the frame shaped like the Chinese character'ri ', and a prefabricated lower through-wall is embedded in the lower area of the frame shaped like the Chinese character'ri'. Secondary cable holes are distributed in the prefabricated upper through wall, cable holes are distributed in the prefabricated lower through wall, and cable through pipes are embedded in the cable holes. The prefabricated transformer station cable through-wall device realizes layered, separated and hole-divided laying of high-voltage cables and control cables, reduces the potential risk of voltage loss of the whole station in a fire disaster, reduces the workload of maintenance and plugging of constructors and operation and maintenance personnel, improves the capability of preventing small animals, and improves the working efficiency of the operation and maintenance personnel; a prefabricated structure is adopted, the site construction time is shortened, and cable laying standardization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substation cable wall penetration, in particular to a prefabricated transformer substation cable wall penetration device. Background Art

[0002] Currently, substations lay high-voltage and control cables in cable trenches. When access needs to be made from outside or from one equipment room to another, brick walls are typically built beneath the trenches, the cables run through the brick walls, and the cable holes are sealed with concrete or cement. This mixing of high-voltage and control cables without separation can lead to mutual interference in the event of a fire, potentially causing a loss of voltage throughout the station.

[0003] At the same time, since high-voltage cables and control cables are not laid in separate holes one by one, the original cement seals must be removed when new cables are laid, which can easily cause cable damage; scrapped cables cannot be recycled, resulting in increasingly crowded cables in the cable trench, increasing the difficulty of maintenance; the cables are laid in disorder, making it difficult to seal the cable holes, which can lead to small animals entering the equipment room and causing equipment failures. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a prefabricated substation cable wall penetration device to achieve layered and separated laying of high-voltage cables and control cables in separate holes, reduce the hidden danger of pressure loss in the entire station during fire, and reduce the maintenance and blocking workload of construction and operation personnel.

[0005] The utility model is implemented by the following scheme: a prefabricated substation cable wall penetration device, including a prefabricated Japanese-Chinese character frame, the Japanese-Chinese character frame is composed of a rectangular frame and a fireproof partition in the middle, a prefabricated upper penetration wall is embedded in the upper area of ​​the Japanese-Chinese character frame, and a prefabricated lower penetration wall is embedded in the lower area of ​​the Japanese-Chinese character frame, secondary cable holes are distributed on the prefabricated upper penetration wall, cable holes are distributed on the prefabricated lower penetration wall, and cable conduits are embedded in the cable holes.

[0006] Furthermore, the fireproof partition is composed of two layers of upper and lower steel plates and a fireproof plate sandwiched between the two layers of steel plates.

[0007] Furthermore, the rectangular frame is formed by welding angle steels.

[0008] Furthermore, a plurality of steel bars arranged in horizontal and vertical directions are pre-embedded in the prefabricated underpass wall.

[0009] Furthermore, the length of the "S"-shaped frame is 800-1400mm, the width is 800-1400mm, and the thickness is 300-400mm; the thickness of the prefabricated upper through-wall and the prefabricated lower through-wall is consistent with the thickness of the "S"-shaped frame, the length of the cable conduit is 40mm longer than the thickness of the prefabricated lower through-wall, and the two ends of the cable conduit extend out of the two sides of the prefabricated lower through-wall by 20 mm respectively.

[0010] Compared with the existing technology, the present invention has the following beneficial effects: the prefabricated substation cable wall penetration device of the present invention realizes the layered, separated and hole-by-hole laying of high-voltage cables and control cables, reduces the hidden danger of decompression of the entire station in the event of a fire, reduces the maintenance and sealing workload of construction personnel and operation and maintenance personnel, enhances the ability to prevent small animals, and improves the work efficiency of operation and maintenance personnel; the use of a prefabricated structure reduces on-site construction time and realizes the standardization of cable laying.

[0011] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the structure of an embodiment of the utility model; DETAILED DESCRIPTION

[0013] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] like Figure 1As shown in the figure, a prefabricated cable through-wall device for a substation includes a prefabricated "day" - shaped frame 100. The "day" - shaped frame 100 consists of a rectangular frame body 101 and a fire - proof partition in the middle. The fire - proof partition divides the internal space of the rectangular frame body 101 into an upper area and a lower area. In the upper area of the "day" - shaped frame, a prefabricated upper through - wall 200 is embedded. In the lower area of the "day" - shaped frame, a prefabricated lower through - wall 300 is embedded. Secondary cable holes 201 are distributed on the prefabricated upper through - wall, which are used for the branched and hole - by - hole laying of secondary cables (i.e., control cables). The prefabricated upper through - wall is embedded in the upper area of the frame and is tightly combined with the frame, and is made of insulating materials such as epoxy resin or ceramics. Cable holes 301 are distributed on the prefabricated lower through - wall, and cable conduits 302 are embedded in the cable holes, which are used for the branched and hole - by - hole laying of high - voltage cables. The prefabricated lower through - wall is embedded in the lower area of the frame and is tightly combined with the frame. The prefabricated lower through - wall is cast with concrete. This cable through-wall device allows control cables to pass through the wall from the upper part and high - voltage cables to pass through the wall from the lower part, separated by a fire - proof partition in the middle, realizing the layered and hole - by - hole laying of high - voltage cables and control cables, reducing the hidden danger of全站失压 (complete station power outage) during a fire, reducing the maintenance and sealing workload of construction workers and operation and maintenance personnel, enhancing the ability to prevent small animals, improving the work efficiency of operation and maintenance personnel, avoiding the frequent removal of the original cement sealing, which is likely to cause cable damage, the scrapped cables cannot be recycled, increasing the maintenance workload, and problems such as small animals entering the equipment room causing equipment failures. And the entire through - wall device is of a prefabricated structure. The three components of the "day" - shaped frame, the prefabricated upper through - wall, and the prefabricated lower through - wall are all prefabricated in the factory and then transported to the site for installation, reducing the on - site construction time and at the same time realizing the standardization of cable laying.

[0016] In this embodiment, the fire - proof partition consists of two upper and lower steel plates 500 and a fire - proof board 400 sandwiched between the two steel plates.

[0017] In this embodiment, the rectangular frame body 101 is welded by angle steels.

[0018] In this embodiment, several steel bars 303 are预埋 (embedded) inside the prefabricated lower through - wall, which are arranged horizontally and vertically respectively to enhance the stability.

[0019] In this embodiment, the length of the "day" - shaped frame is 800 - 1400 mm, the width is 800 - 1400 mm, and the thickness is 300 - 400 mm. The thickness of the prefabricated upper through - wall and the prefabricated lower through - wall is the same as that of the "day" - shaped frame. The inner diameter of the cable conduit is 1.5 times the cable diameter. The length of the cable conduit is 40 mm longer than the thickness of the prefabricated lower through - wall, that is, the length of the cable conduit is 340 - 440 mm, and both ends of the cable conduit extend 20 mm out of the two side faces of the prefabricated lower through - wall respectively, which is convenient for sealing the cable holes.

[0020] It should be noted that the term "全站失压" in the original text seems to be a specific term in Chinese for power system related concepts, and the translation "complete station power outage" is a rough equivalent for the purpose of translation. If there is a more accurate and specific English term in the relevant field, it can be further adjusted. Also, the term "预埋" is translated as "embedded" in the text for item [9].Unless otherwise stated, any numerical range disclosed for any technical solution disclosed in the present invention is a preferred numerical range. Those skilled in the art should understand that a preferred numerical range is merely a numerical range that provides a more significant or representative technical effect among a wide range of practicable values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, only some numerical values ​​are disclosed in the present invention to illustrate the technical solution of the present invention. Furthermore, the numerical values ​​listed above should not be construed as limiting the scope of protection of the present invention.

[0021] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0022] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0023] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0024] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall remain within the scope of protection of the present invention.

Claims

1. A prefabricated substation cable wall penetration device, characterized by: It includes a prefabricated E-shaped frame, which is composed of a rectangular frame body and a fireproof partition in the middle. A prefabricated upper wall penetration is embedded in the upper area of the E-shaped frame, and a prefabricated lower wall penetration is embedded in the lower area of the E-shaped frame. Secondary cable holes are distributed on the prefabricated upper wall penetration, and cable holes are distributed on the prefabricated lower wall penetration. Cable conduits are embedded in the cable holes.

2. The prefabricated substation cable wall penetration device according to claim 1, characterized in that: The fireproof partition is composed of two layers of steel plates on the upper and lower sides and a fireproof board sandwiched between the two layers of steel plates.

3. The prefabricated substation cable wall penetration device according to claim 1, characterized in that: The rectangular frame body is welded by angle steels.

4. The prefabricated substation cable wall penetration device according to claim 1, characterized in that: A number of steel bars are预埋 (embedded) inside the prefabricated lower wall penetration and are respectively arranged along the horizontal and vertical directions.

5. The prefabricated substation cable wall penetration device according to claim 1, characterized in that: The length of the E-shaped frame is 800 - 1400 mm, the width is 800 - 1400 mm, and the thickness is 300 - 400 mm; the thickness of the prefabricated upper wall penetration and the prefabricated lower wall penetration is the same as that of the E-shaped frame. The length of the cable conduit is 40 mm longer than the thickness of the prefabricated lower wall penetration, and both ends of the cable conduit respectively extend 20 mm out of the two side faces of the prefabricated lower wall penetration. It should be noted that the Chinese word "预埋" is directly translated as "预埋" here as it is a technical term in construction. If a more common English equivalent is needed, it can be replaced with "embedded". Also, the English grammar and punctuation in the translation are adjusted to be in line with English usage.

Images