A monitoring device for leakage water of prefabricated steel structure substation roof

Abstract

The application provides a kind of based on prefabricated steel structure substation roof leakage water monitoring device, substation includes wall and roof;The top of wall is equipped with multiple I-beams connected head to tail;Among them, I-beam includes upper support part, lower support part and intermediate support part connected between upper support part and lower support part;The edge of roof is arranged on multiple upper support parts;Monitoring device includes mutually electrically connected leak detection cable and leak detection controller;Leak detection cable is laid on the upper end surface of lower support part;Leak detection controller is installed in the position below lower support part of wall.This utility model solves the technical problem that the existing monitoring device is usually installed on the indoor ground of substation, and this arrangement means that only when the leaked liquid has accumulated and flowed to the installation position, it can be detected.There is a significant time delay from the leakage of roof or wall gap to the discovery by ground sensor, which cannot provide early warning for operation and maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of leak detection technology, and more specifically, to a monitoring device for water leakage on the roof of a prefabricated steel structure substation. Background Technology

[0002] Preventing flooding is a crucial safety measure in the daily operation of substations. Rainwater, condensate, or leaks from internal pipes can infiltrate the substation, potentially causing serious accidents such as short circuits in electrical equipment, insulation failure, and grounding faults. This can result in significant economic losses and even pose risks to the operation of the power grid.

[0003] Furthermore, existing leak detection devices are typically installed on the indoor floor of substations. This arrangement means that leaked liquid can only be detected after it has accumulated and flowed to the installation location. There is a significant time delay between a leak occurring in a roof or wall crack and its detection by a ground sensor, failing to provide early warnings for maintenance personnel. Utility Model Content

[0004] The technical problem solved by this invention is that existing monitoring devices are usually installed on the indoor floor of substations. This arrangement means that leaked liquid can only be detected when it has accumulated and flowed to the installation location. There is a significant time delay between a leak occurring in the roof or wall and its detection by the ground sensor, making it impossible to provide early warnings for maintenance personnel.

[0005] To address the aforementioned issues, this utility model provides a monitoring device for roof leakage in a prefabricated steel structure substation. The monitoring device is installed inside the substation, which includes a perimeter wall and a roof. The top of the perimeter wall is provided with multiple I-beams connected end to end. Each I-beam includes an upper support, a lower support, and an intermediate support connecting the upper and lower support. The edges of the roof are supported by multiple upper supports; The monitoring device includes leak detection cables and a leak detection controller that are electrically connected to each other; Leak detection cable is laid on the upper surface of the lower support; leak detection controller is installed on the wall below the lower support. When the leak detection cable comes into contact with liquid, the leak detection controller issues an alarm signal based on the electrical signal sent by the leak detection cable.

[0006] Compared to existing technologies, this technical solution achieves the following advantages: By placing the monitoring device near the roof, when a leak occurs at the junction of the roof and the perimeter wall, the device can detect the leak and issue a warning quickly, thus shortening the response time compared to placing the monitoring device on the ground. Furthermore, the leak detection cable is installed on the lower support of the I-beam, fully utilizing the architectural characteristics of the substation and simplifying the installation structure of the leak detection cable.

[0007] In one embodiment of this utility model, the leak detection cable includes a first sensing wire and a second sensing wire, as well as an insulating material wrapped around the first sensing wire and the second sensing wire. The surface of the insulating material has several leakage holes.

[0008] In one embodiment of this utility model, the first sensing line and the second sensing line include a detection core and a braided sheath for protecting the detection core; The braided sheath is located on the outer periphery of the test conductor and is fixed within the insulation material.

[0009] In one embodiment of this utility model, the leak detection cable is arranged in multiple coils, and at least a portion of the leak detection cable is located at the edge of the lower support portion. The first sensing line and the second sensing line are arranged parallel to each other.

[0010] In one embodiment of this utility model, the monitoring device further includes a first fixing structure, which is snapped onto the edge of the lower support portion to fix the leak detection cable to the lower support portion.

[0011] In one embodiment of this utility model, the first fixing structure includes a first snap-fit ​​part, a connecting part, and a second snap-fit ​​part; The first snap-fit ​​part abuts against the upper end face of the lower support part, and the second snap-fit ​​part abuts against the lower end face of the lower support part; The connecting part is connected between the first snap-fit ​​part and the second snap-fit ​​part.

[0012] In one embodiment of this utility model, the first fixing structure is a rubber component.

[0013] In one embodiment of this utility model, the first snap-fit ​​portion and the second snap-fit ​​portion are arranged at an angle; Let the included angle be denoted as a, and 60°a≤90°.

[0014] In one embodiment of this utility model, the monitoring device further includes a plurality of second fixing structures, which are connected to the wall by fasteners; The second fixed structure is provided with a receiving groove for accommodating the leak detection cable.

[0015] In one embodiment of this utility model, the leak detection controller includes: The housing is connected to the enclosure wall, and the upper end of the housing is provided with a wire hole for the leakage detection cable to extend into. The circuit board assembly is housed within the housing and is electrically connected to the leak detection cable. The display panel is located on the front end of the housing and is electrically connected to the circuit board assembly.

[0016] By adopting the technical solution of this utility model, the following technical effects can be achieved: By placing the monitoring device near the roof, when a leak occurs at the junction of the roof and the perimeter wall, the device, located nearby, can detect the leak and issue a warning quickly. This significantly reduces the response time compared to placing the monitoring device on the ground. Furthermore, the leak detection cable is installed on the lower support of the I-beam, fully utilizing the substation's architectural features and simplifying the cable installation structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 A schematic diagram of a monitoring device for water leakage on the roof of a prefabricated steel structure substation, provided for an embodiment of this utility model; Figure 2 for Figure 1 A schematic diagram of a local structure in the image; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 1 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of another first fixing structure provided in an embodiment of the present utility model; Figure 6 A schematic diagram of another first fixing structure provided for an embodiment of the utility model; Figure 7 A schematic diagram of another first fixing structure provided for an embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: 100. Substation; 10. Roof; 20. Fence; 21. I-beam; 211. Upper support; 212. Lower support; 213. Intermediate support; 31. Leak detection cable; 311. First sensing line; 312. Second sensing line; 32. Leak detection controller; 33. First fixing structure; 331. First snap-fit ​​part; 332. Connecting part; 333. Second snap-fit ​​part; 334. Screw hole; 335. Fastening bolt; 34. Second fixing structure. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] See Figures 1-7 This utility model embodiment provides a monitoring device for water leakage on the roof of a prefabricated steel structure substation. The monitoring device is installed inside the substation 100, which includes a perimeter wall 20 and a roof 10. Multiple I-beams 21 connected end-to-end are arranged at the top of the perimeter wall 20. Each I-beam 21 includes an upper support 211, a lower support 212, and an intermediate support 213 connecting the upper and lower support 211. The edge of the roof 10 is supported by the multiple upper support 211s. The monitoring device includes a leak detection cable 31 and a leak detection controller 32 electrically connected to each other. The leak detection cable 31 is laid on the upper surface of the lower support 212. The leak detection controller 32 is installed on the perimeter wall 20 below the lower support 212. When the leak detection cable 31 comes into contact with liquid, the leak detection controller 32 issues an alarm signal based on the electrical signal sent by the leak detection cable 31.

[0021] By placing the monitoring device near the roof 10, when a leak occurs at the junction of the roof 10 and the perimeter wall 20, the device can detect the leak and issue a warning quickly, thus shortening the response time compared to placing the monitoring device on the ground. Furthermore, the leak detection cable 31 is mounted on the lower support 212 of the I-beam 21, which fully integrates with the architectural characteristics of the substation 100, simplifying the installation structure of the leak detection cable 31 and eliminating the need for structural adjustments to the perimeter wall 20 to accommodate it.

[0022] Preferably, the leak detection cable 31 includes a first sensing wire 311 and a second sensing wire 312, and an insulating material wrapped around the first sensing wire 311 and the second sensing wire 312; wherein the surface of the insulating material is provided with a plurality of leakage holes. For example, the leak detection cable 31 is designed with a track-type flat structure, and its upper and lower surfaces are provided with a plurality of leakage holes. The track-type structure makes the cable thickness of the leak detection cable 31 extremely small, and does not occupy too much space at the installation site.

[0023] Furthermore, the insulating material is preferably flexible insulating adhesive. Thus, the first sensing line 311 and the second sensing line 312 are wrapped with flexible insulating material, which facilitates the laying of the leak detection cable 31 on the lower support 212, especially at the corner position, making it convenient to adjust the bending angle of the leak detection cable 31.

[0024] Preferably, the first sensing line 311 and the second sensing line 312 include a detection core and a braided sheath for protecting the detection core; the braided sheath is disposed on the outer periphery of the detection core and fixed within an insulating material. For example, the insulating material may be nylon, and the braided sheath may be non-woven fabric or cotton fabric.

[0025] In this embodiment, the detection core is embedded within the insulating material, which enhances its lifespan and anti-interference capabilities, and prevents false alarms caused by the detection core being exposed and in contact with metallic substances. Furthermore, the detection core is secured within the insulating adhesive, making it less prone to detachment.

[0026] Preferably, the leak detection cable 31 is arranged in multiple coils, and at least a portion of the leak detection cable 31 is located at the edge of the lower support portion 212; wherein, the first sensing line 311 and the second sensing line 312 are arranged parallel to each other. Specifically, by arranging the leak detection cable 31 in multiple coils to cover the upper surface of the lower support portion 212 as much as possible, the accuracy of leak detection is improved.

[0027] Preferably, the monitoring device further includes a first fixing structure 33, which is engaged with the edge of the lower support portion 212 to fix the leak detection cable 31 to the lower support portion 212. By providing the first fixing structure 33, the stability of the leak detection cable 31 installed on the lower support portion 212 is improved.

[0028] Preferably, the first fixing structure 33 includes a first snap-fit ​​portion 331, a connecting portion 332, and a second snap-fit ​​portion 333; the first snap-fit ​​portion 331 abuts against the upper end face of the lower support portion 212, and the second snap-fit ​​portion 333 abuts against the lower end face of the lower support portion 212; the connecting portion 332 connects the first snap-fit ​​portion 331 and the second snap-fit ​​portion 333.

[0029] Preferably, the first fixing structure 33 is a rubber component.

[0030] Combination Figure 5 The first locking portion 331 and the second locking portion 333 are set at an angle; where the angle is denoted as α, and α ≤ 90°. Specifically, by setting the first locking portion 331 and the second locking portion 333 at an acute angle, the stability of the first fixing structure 33 in the lower support portion 212 is improved, and the risk of falling off is reduced.

[0031] Combination Figure 6In another specific example, in order to improve the installation stability of the first fixing structure 33 on the lower support 212, a screw hole 334 can be opened on the second snap-fit ​​part 333. After the fastening bolt 335 is screwed into the screw hole 334, the fastening bolt 335 is adjusted to abut against the lower end face of the lower support 212, thereby fastening the first fixing structure 33 to the lower support 212.

[0032] Preferably, the monitoring device further includes multiple second fixing structures 34, which are connected to the enclosure 20 by fasteners; each second fixing structure 34 has a receiving groove for accommodating the leak detection cable 31. By setting the second fixing structures 34, the stability of the leak detection cable 31 on the side wall of the enclosure 20 is ensured, preventing the leak detection cable 31 from shaking. For example, the second fixing structure 34 is a clamp structure.

[0033] Preferably, the leak detection controller 32 includes a housing, a circuit board assembly, and an indicator light panel. The housing is connected to the enclosure 20, and the upper end of the housing is provided with a through hole for the leak detection cable 31 to extend into; the circuit board assembly is disposed inside the housing, and the circuit board assembly is electrically connected to the leak detection cable 31; the indicator light panel is disposed on the front end face of the housing and is electrically connected to the circuit board assembly.

[0034] In a specific example, when no leakage occurs, the resistance between the first sensing line 311 and the second sensing line 312 tends to be infinite and can be ignored. When a leak occurs, the leakage holes of the first sensing line 311 and the second sensing line 312 are connected by liquid, forming a loop. The loop current changes, thereby changing the voltage collected by the leak detection controller 32 and outputting an alarm signal. The leak detection controller 32 has an internal sensing circuit electrically connected to the leak detection cable 31. When the leak detection cable 31 comes into contact with liquid, the sensing circuit connected to it is turned on, and the alarm signal can be output to the indicator light control module of the leak detection controller 32. This causes the LED lights on the display screen of the leak detection controller 32 to indicate the alarm status, such as displaying a red light. It can also be connected to other monitoring platforms (host computer or external alarm, etc.).

[0035] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A monitoring device for water leakage in the roof of a prefabricated steel structure substation, characterized in that, The monitoring device is installed inside the substation; The substation includes a wall (20) and a roof (10); the top of the wall (20) is provided with a plurality of I-beams (21) connected end to end; wherein, the I-beams (21) include an upper support part (211), a lower support part (212) and an intermediate support part (213) connecting the upper support part (211) and the lower support part (212); The edge of the roof (10) is supported by a plurality of the upper supports (211); The monitoring device includes a leak detection cable (31) and a leak detection controller (32) that are electrically connected to each other; The leak detection cable (31) is laid on the upper end face of the lower support (212); the leak detection controller (32) is installed on the wall (20) located below the lower support (212); When the leak detection cable (31) comes into contact with liquid, the leak detection controller (32) issues an alarm signal based on the electrical signal sent by the leak detection cable (31).

2. The monitoring device according to claim 1, characterized in that, The leak detection cable (31) includes a first sensing line (311) and a second sensing line (312), as well as an insulating material wrapped around the first sensing line (311) and the second sensing line (312); The insulating material has several leakage holes on its surface.

3. The monitoring device according to claim 2, characterized in that, The first sensing line (311) and the second sensing line (312) include a detection core and a braided sheath for protecting the detection core; The braided sheath is disposed on the outer periphery of the detection wire core and fixed within the insulating material.

4. The monitoring device according to claim 3, characterized in that, The leak detection cable (31) is coiled in multiple turns, and at least a portion of the leak detection cable (31) is located at the edge of the lower support (212). The first sensing line (311) and the second sensing line (312) are arranged parallel to each other.

5. The monitoring device according to any one of claims 1-4, characterized in that, The monitoring device further includes a first fixing structure (33), which is engaged with the edge of the lower support (212) to fix the leak detection cable (31) to the lower support (212).

6. The monitoring device according to claim 5, characterized in that, The first fixing structure (33) includes a first snap-fit ​​part (331), a connecting part (332), and a second snap-fit ​​part (333); The first snap-fit ​​portion (331) abuts against the upper end face of the lower support portion (212), and the second snap-fit ​​portion (333) abuts against the lower end face of the lower support portion (212); The connecting part (332) is connected between the first snap-fit ​​part (331) and the second snap-fit ​​part (333).

7. The monitoring device according to claim 6, characterized in that, The first fixing structure (33) is a rubber component.

8. The monitoring device according to claim 6, characterized in that, The first latching part (331) and the second latching part (333) are arranged at an angle; Wherein, the included angle is denoted as a, and 60°a≤90°.

9. The monitoring device according to claim 1, characterized in that, The monitoring device also includes a plurality of second fixing structures (34), which are connected to the wall (20) by fasteners; The second fixing structure (34) is provided with a receiving groove for accommodating the leak detection cable (31).

10. The monitoring device according to claim 1, characterized in that, The leak detection controller (32) includes: The housing is connected to the enclosure (20), and the upper end of the housing is provided with a wire hole for the leak detection cable (31) to extend into; A circuit board assembly, which is disposed within the housing and is electrically connected to the leak detection cable (31); The display light panel is disposed on the front end face of the housing and is electrically connected to the circuit board assembly.

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