Shield tunneling machine box transformer substation with fire extinguishing system arranged at top

Abstract

The utility model discloses a shield tunneling machine box transformer substation with a fire extinguishing system at the top, which comprises a box body, and a low-voltage chamber, a transformer chamber and a high-voltage chamber are arranged in the box body side by side along the horizontal direction; the fixed cross beam is mounted at the top of the box body; the movable cross beam is connected with the fixed cross beam; modulus holes are formed in the fixed cross beam and the movable cross beam; the fire-fighting pipeline is fixed on the fixed cross beam and the movable cross beam, the fire-fighting pipeline comprises a fire detection tube and a release tube, the fire detection tube and the release tube are arranged in the low-voltage chamber, the transformer chamber and the high-voltage chamber, the fire detection tube is used for smoke sensing and heat sensing detection, and the release tube is used for releasing a fire extinguishing agent. According to the utility model, flexible arrangement of the fire-fighting pipeline at the top of the box transformer substation is realized, key protection areas of the low-voltage chamber, the transformer chamber and the high-voltage chamber are covered, the fire detection tube and the release tube are independently arranged, double guarantees of early-stage accurate detection and quick response fire extinguishing of a fire disaster are realized, and 24-hour uninterrupted protection is provided for the box transformer substation.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated substations, and in particular to a prefabricated substation for tunnel boring machines with a fire protection system installed on the top. Background Technology

[0002] The transformer substation has a compact internal structure and small size. Its elongated layout fits the structural design of the tunnel boring machine (TBM) and meets the requirements for use in harsh underground environments. However, the internal structure of the TBM and its working environment are complex. If a fire breaks out inside the transformer substation, the fire may spread rapidly. If the fire source cannot be extinguished in a timely and accurate manner, it will not only damage the equipment but may also endanger the lives of the operators, causing huge losses. Utility Model Content

[0003] The main objective of this invention is to provide a transformer substation for tunnel boring machines with a top-mounted fire protection system, which aims to effectively solve at least one of the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model discloses a box-type substation for a tunnel boring machine with a top-mounted fire protection system, comprising:

[0006] The enclosure contains a low-voltage compartment, a transformer compartment, and a high-voltage compartment arranged side by side along a horizontal direction.

[0007] A fixed crossbeam is installed on the top of the housing;

[0008] The movable crossbeam is connected to the fixed crossbeam;

[0009] Both the fixed crossbeam and the movable crossbeam are provided with modular holes;

[0010] The fire-fighting pipeline is fixed on the fixed crossbeam and the movable crossbeam. The fire-fighting pipeline includes a fire detection pipe and a release pipe. The fire detection pipe and the release pipe are installed in the low-pressure chamber, the transformer chamber and the high-pressure chamber. The fire detection pipe is used for smoke and heat detection, and the release pipe is used for releasing fire extinguishing agents.

[0011] This utility model features a fixed crossbeam at the top of the transformer substation. Modular holes on both the fixed and movable crossbeams allow for flexible arrangement of the movable crossbeams on the fixed beam. After the movable crossbeams are arranged, they are secured by fasteners inserted through these holes. This enables flexible arrangement of fire-fighting pipes at the top of the substation, covering key protected areas such as the low-voltage compartment, transformer compartment, and high-voltage compartment. The fire detection pipe and release pipe are independently installed, providing dual protection for accurate early fire detection and rapid fire suppression, offering 24-hour uninterrupted protection for the substation. The crossbeam structure enhances the load-bearing capacity of the top of the substation, while the fire-fighting pipes extending along the top avoid occupying space for internal equipment.

[0012] In a preferred embodiment, a partition is provided between the low-voltage chamber, the transformer chamber, and the high-voltage chamber.

[0013] In a preferred embodiment, the partition plate is provided with a pipe passage hole for the fire-fighting pipe to pass through.

[0014] In a preferred embodiment, the partition plate has square holes for the fixed crossbeam and / or the movable crossbeam to pass through.

[0015] In a preferred embodiment, there are multiple movable crossbeams, which are connected in a crisscross pattern.

[0016] In a preferred embodiment, the fire-fighting pipeline includes a fire detection pipe and a release pipe. The fire detection pipe and the release pipe are installed in the low-pressure chamber, the transformer chamber, and the high-pressure chamber. The fire detection pipe is used for temperature detection, and the release pipe is used for releasing fire extinguishing agents.

[0017] In a preferred embodiment, the release tube includes a main release tube and a branch release tube, the main release tube and the branch release tube being connected by a multi-port connector.

[0018] In a preferred embodiment, a fixing plate is provided on the inner wall of the box for fixing the fire-fighting pipe; an inlet hole is provided on the wall of the box near the fixing plate so that the fire-fighting pipe can enter from the outside of the box.

[0019] To better understand and implement this invention, the following diagram, in conjunction with the accompanying drawings, provides a detailed description. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a 3D structural diagram of a transformer substation used in a tunnel boring machine with a fire protection system installed at the top.

[0022] Figure 2 This is a partial 3D structural diagram of a transformer substation used in tunnel boring machines, with a fire protection system installed on top.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Enclosure, 11. Low-voltage compartment, 12. Transformer compartment, 13. High-voltage compartment, 2. Fixed crossbeam, 3. Removable crossbeam, 4. Modular hole, 5. Partition, 6. Pipeline through hole, 7. Square hole, 8. Fixing plate, 9. Inlet hole. Detailed Implementation

[0025] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0027] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0028] See Figure 1 and Figure 2 This utility model discloses a box-type substation for a tunnel boring machine with a top-mounted fire protection system, comprising:

[0029] The enclosure 1 contains a low-voltage chamber 11, a transformer chamber 12, and a high-voltage chamber 13 arranged side by side along the horizontal direction.

[0030] The fixed crossbeam 2 is installed on the top of the box 1;

[0031] The movable crossbeam 3 is connected to the fixed crossbeam 2;

[0032] Both the fixed crossbeam 2 and the movable crossbeam 3 are provided with modular holes 4;

[0033] Fire-fighting pipelines are fixed on the fixed crossbeam 2 and the movable crossbeam 3. The fire-fighting pipelines include fire detection pipes and release pipes. The fire detection pipes and release pipes are installed in the low-pressure chamber 11, the transformer chamber 12 and the high-pressure chamber 13. The fire detection pipes are used for smoke and heat detection, and the release pipes are used for releasing fire extinguishing agents.

[0034] The working principle of the linkage between the fire detection tube and the release tube is as follows: when the fire detection tube detects that the smoke and heat inside the box 1 exceed the range, the release tube releases the fire extinguishing agent, which is a commonly used existing technology.

[0035] This invention features a fixed crossbeam 2 at the top of the enclosure 1. The movable crossbeam 3 can be flexibly arranged on the fixed crossbeam 2 via modular holes 4 on both the fixed and movable crossbeams 2 and 3. After the movable crossbeam 3 is arranged, it is fixed by fasteners passing through the modular holes 4 on both the fixed and movable crossbeams 2 and 3. This allows for flexible arrangement of fire-fighting pipes at the top of the transformer substation, covering key protected areas such as the low-voltage compartment 11, transformer compartment 12, and high-voltage compartment 13. The fire detection pipe and release pipe are independently installed, providing dual protection for accurate early fire detection and rapid fire suppression, offering 24-hour uninterrupted protection for the transformer substation. The crossbeam structure enhances the load-bearing capacity of the top of the enclosure 1, while the fire-fighting pipes extending along the top avoid occupying space for internal equipment.

[0036] In one embodiment, a partition 5 is provided between the low-voltage chamber 11, the transformer chamber 12, and the high-voltage chamber 13. The partition 5 physically isolates the low-voltage chamber 11, the transformer chamber 12, and the high-voltage chamber 13, preventing a fire in one area from spreading to adjacent areas and improving overall fire safety. Simultaneously, the partition 5 can reduce electromagnetic interference and heat conduction issues during equipment operation.

[0037] Furthermore, the partition 5 is provided with pipe passage holes 6 for the fire protection pipes to pass through. The pipe passage holes 6 allow the fire protection pipes to penetrate the partition 5 and extend to various areas without additional detours or damage to the overall structure of the partition 5, thus maintaining fireproof isolation performance and achieving full-coverage of the fire protection system within the enclosure 1.

[0038] Furthermore, the partition 5 has square holes 7 for the fixed crossbeam 2 and / or the movable crossbeam 3 to pass through. The crossbeams penetrate the partition 5 through the square holes 7 to form an integral frame, greatly improving the structural stability of the box 1.

[0039] In one embodiment, there are multiple movable crossbeams 3, which are connected in a crisscross pattern. The crisscrossing movable crossbeams 3 form a grid-like support structure, which can dynamically adjust the installation points according to the direction of the fire extinguishing pipeline, adapting to the complex layout requirements of different fire extinguishing agent release pipelines, and is especially suitable for narrow and long transformer substation spaces.

[0040] Furthermore, the release pipe includes a main release pipe and branch release pipes, which are connected via a multi-way connector. The multi-way connector ensures uniform distribution of the extinguishing agent from the main release pipe to the branch release pipes, guaranteeing consistent extinguishing agent spray pressure in each area. The multi-way connector is a tee connector.

[0041] In one embodiment, a fixing plate 8 is provided on the inner wall of the enclosure 1 for fixing the fire-fighting pipe; an inlet hole 9 is provided on the wall of the enclosure 1 near the fixing plate 8 to allow the fire-fighting pipe to enter from the outside of the enclosure 1. The fixing plate 8 is welded to the inner wall of the enclosure 1. The fire-fighting pipe enters the interior of the enclosure 1 through the inlet hole 9, and is then fixed to the fixing plate 8. It then extends through the fixing beam 2 and the movable beam 3. The fixing plate 8 can fix the fire-fighting pipe to prevent the pipe from shaking and affecting the safety of the equipment.

[0042] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A box transformer for a shield tunneling machine provided with a fire extinguishing system at the top, characterized in that, The utility model relates to a shield machine box transformer with fire-fighting system arranged on the top, comprising: a box body, in which low-voltage chamber, transformer chamber and high-voltage chamber are arranged side by side in horizontal direction; a fixed crossbeam installed on the top of the box body; a movable crossbeam connected with the fixed crossbeam; a module hole is formed on the fixed crossbeam and the movable crossbeam; a fire-fighting pipeline is fixed on the fixed crossbeam and the movable crossbeam, which comprises a fire-probe pipe and a release pipe, and the fire-probe pipe and the release pipe are arranged in the low-voltage chamber, the transformer chamber and the high-voltage chamber, wherein the fire-probe pipe is used for smoke and heat detection, and the release pipe is used for releasing fire extinguishing agent.

2. The shield machine box transformer with fire-fighting system arranged on the top according to claim 1, wherein: a partition plate is arranged between the low-voltage chamber, the transformer chamber and the high-voltage chamber.

3. The shield machine box transformer with fire-fighting system arranged on the top according to claim 2, wherein: a pipeline passing hole is formed on the partition plate for the fire-fighting pipeline to pass through.

4. The shield machine box transformer with fire-fighting system arranged on the top according to claim 2, wherein: a square hole is formed on the partition plate for the fixed crossbeam and / or the movable crossbeam to pass through.

5. The shield machine box transformer with fire-fighting system arranged on the top according to claim 1, wherein: the movable crossbeam has a plurality of movable crossbeams, and the plurality of movable crossbeams are connected in longitudinal and transverse directions.

6. The shield machine box transformer with fire-fighting system arranged on the top according to claim 1, wherein: the release pipe comprises a main release pipe and a branch release pipe, and the main release pipe and the branch release pipe are connected through a multi-way joint.

7. The shield machine box transformer with fire-fighting system arranged on the top according to claim 1, wherein: a fixed plate is arranged on the inner wall surface of the box body for fixing the fire-fighting pipeline; a wire inlet hole is formed on the wall surface of the box body close to the fixed plate for the fire-fighting pipeline to enter from the outside of the box body.

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