Water supply pipe arrangement structure of subway vehicle base integrated building walkway trench
By simplifying the water supply pipe layout of the subway vehicle depot complex to four routes and using two layers of pipe supports and pipe connectors, the problem of complex water supply system was solved, and the project investment was reduced and the structure was simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY ENG CONSULTING GRP CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-28
AI Technical Summary
The water supply system of the subway vehicle depot complex needs to be installed with eight water supply pipes, which increases the clearance height of the corridor trenches and the floor height, complicates the structure, and increases the project investment.
A water supply pipe layout structure for the walkway trench of the subway vehicle depot complex is adopted, which simplifies the eight water supply pipes into four. The pipes are arranged through two layers of pipe supports and use pipe connectors and control valves to ensure the independence of each system and the direction of water flow, thereby reducing the headroom and floor height.
The layout of water supply pipes in the subway vehicle depot's comprehensive building was simplified, reducing project investment, decreasing the net height of the trenches and the floor height, and improving the degree of structural simplification.
Smart Images
Figure CN224565283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of subway rail transit technology, and more specifically, to a water supply pipe arrangement structure for a walkway trench in a subway vehicle depot complex. Background Technology
[0002] The complex buildings of subway depots are typically long and narrow high-rise buildings, generally classified as Class II high-rise public buildings. The water supply system of these buildings typically includes a domestic water supply system, an indoor fire hydrant system, and an automatic sprinkler system. The domestic water supply system is usually divided into high-zone and low-zone systems, requiring separate supply pipes for each. For safety and reliability, the indoor fire hydrant system and the automatic sprinkler system require two separate supply pipes. Specifically, if the automatic sprinkler system has two sets of wet alarm valves, four supply pipes are required. In summary, a subway depot complex building requires eight water supply pipes, which are usually laid in the trenches in the corridors on the first floor of the building. Setting up eight water supply pipes requires four layers of pipe supports, which increases the clearance height of the corridor trench and the floor height, increases the burial depth of the complex building, and complicates the structural form of the raft foundation and foundation beams of the complex building, thereby increasing the project investment of the complex building. Utility Model Content
[0003] The purpose of this utility model is to provide a water supply pipe arrangement structure for the underground drainage ditch in the corridor of a subway vehicle depot, in order to improve the above-mentioned problems. To achieve the above objective, the technical solution adopted by this utility model is as follows:
[0004] This application provides a water supply pipe arrangement structure for a walkway trench in a subway vehicle depot complex, including pipe supports, an inlet pipe system, and an inlet branch pipe system. The pipe supports are fixedly installed in the walkway trench. The inlet pipe system is laid parallel to the length of the walkway trench and is fixedly installed on the pipe supports. The inlet pipe system includes a first inlet pipe, a second inlet pipe, a third inlet pipe, and a fourth inlet pipe. The second and fourth inlet pipes are located at a first height plane, and the first and third inlet pipes are located at a second height plane lower than the first height plane. The inlet branch pipe system is connected to the inlet pipe system through pipe connectors.
[0005] Furthermore, the water inlet branch pipe system includes a low-zone domestic water system inlet branch pipe, a low-zone automatic sprinkler system first inlet branch pipe, an indoor fire hydrant system first inlet branch pipe, a low-zone automatic sprinkler system second inlet branch pipe, an indoor fire hydrant system second inlet branch pipe, a high-zone automatic sprinkler system first inlet branch pipe, a high-zone domestic water system inlet branch pipe, and a high-zone automatic sprinkler system second inlet branch pipe.
[0006] Furthermore, a total of eight pipe connectors are provided, including: a first pipe connector, a second pipe connector, a third pipe connector, a fourth pipe connector, a fifth pipe connector, a sixth pipe connector, a seventh pipe connector, and an eighth pipe connector. The fourth and fifth pipe connectors are located at the first water inlet pipe, the third and sixth pipe connectors are located at the second water inlet pipe, the second and seventh pipe connectors are located at the third water inlet pipe, and the first and eighth pipe connectors are located at the fourth water inlet pipe.
[0007] Furthermore, the fourth pipe connector at the first water inlet pipe is connected to the low-zone domestic water system inlet branch pipe; the fifth pipe connector at the first water inlet pipe is connected to the first water inlet branch pipe of the low-zone automatic sprinkler system; the third pipe connector at the second water inlet pipe is connected to the first water inlet branch pipe of the indoor fire hydrant system; the sixth pipe connector at the second water inlet pipe is connected to the second water inlet branch pipe of the low-zone automatic sprinkler system; the second pipe connector at the third water inlet pipe is connected to the second water inlet branch pipe of the indoor fire hydrant system; the seventh pipe connector at the third water inlet pipe is connected to the first water inlet branch pipe of the high-zone automatic sprinkler system; the first pipe connector at the fourth water inlet pipe is connected to the high-zone domestic water system inlet branch pipe; and the eighth pipe connector at the fourth water inlet pipe is connected to the second water inlet branch pipe of the high-zone automatic sprinkler system.
[0008] Furthermore, it also includes control valves, which include a backflow preventer and a check valve. The backflow preventer is disposed in the first water inlet pipe and the fourth water inlet pipe, and the check valve is disposed in the second water inlet pipe and the third water inlet pipe.
[0009] Furthermore, the backflow preventer on the first water inlet pipe is disposed between the fourth pipe connector and the fifth pipe connector, and the water flow direction in the backflow preventer of the first water inlet pipe is from the fourth pipe connector to the fifth pipe connector.
[0010] Furthermore, the check valve on the second water inlet pipe is disposed between the third pipe connector and the sixth pipe connector, and the water flow direction in the check valve in the second water inlet pipe is from the third pipe connector to the sixth pipe connector.
[0011] Furthermore, the pipe support is provided in two layers, and the pipe support is fixed to the side wall of the walkway trench by a fixing device. The pipe support includes a first pipe support, a second pipe support, a third pipe support and a fourth pipe support. The first pipe support, the second pipe support, the third pipe support and the fourth pipe support are all provided with a U-shaped buckle to fix the water inlet pipe system.
[0012] Furthermore, the diameter of each inlet pipe in the water inlet pipe system is DN150mm.
[0013] Furthermore, the first elevation plane and the second elevation plane differ by 0.45m.
[0014] The beneficial effects of this utility model are as follows:
[0015] The eight water supply pipes in the subway vehicle depot's complex were simplified to four water supply pipes, requiring only two layers of pipe supports. This reduced the clearance height of the walkway trench and the height of one floor, resulting in a shallower burial depth and a simpler structural form for the complex, thus reducing the project investment.
[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the plan structure of a water supply pipe embodiment in the walkway trench of the subway vehicle depot complex.
[0019] Figure 2 This is a cross-sectional structural diagram of an embodiment of the water supply pipe in the walkway trench of the subway vehicle depot complex.
[0020] Markings in the diagram: 1. First pipe support; 2. Second pipe support; 3. Third pipe support; 4. Fourth pipe support; 5. Walkway trench; 6. Fixing device; 7. U-shaped buckle; 10. Water inlet pipe system; 11. First water inlet pipe; 12. Second water inlet pipe; 13. Third water inlet pipe; 14. Fourth water inlet pipe; 20. Water inlet branch pipe system; 21. High-zone domestic water system water inlet branch pipe; 22. Indoor fire hydrant system second branch pipe; 23. Indoor fire hydrant system first water inlet branch pipe; 24. Low-zone automatic sprinkler system first water inlet branch pipe; 25. Low 26. First inlet branch pipe of the automatic sprinkler system in the low zone; 27. Second inlet branch pipe of the automatic sprinkler system in the high zone; 28. Second inlet branch pipe of the automatic sprinkler system in the high zone; 31. First pipe connector; 32. Second pipe connector; 33. Third pipe connector; 34. Fourth pipe connector; 35. Fifth pipe connector; 36. Sixth pipe connector; 37. Seventh pipe connector; 38. Eighth pipe connector; 40. Control valve; 41. Backflow preventer; 42. Check valve. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] like Figure 1 and Figure 2As shown, this embodiment provides a water supply pipe layout structure for a walkway trench in a subway vehicle depot complex. The walkway trench 5 includes pipe supports, a water inlet pipe system 10, and a water inlet branch pipe system 20. The walkway trench 5 has a net width of 1.6m and a net height of 1.35m, saving two layers of pipe supports, simplifying construction, reducing the trench's net height and floor height, and thus reducing the overall building's project investment. Only two layers of pipe supports are installed, fixed to the side wall of the walkway trench 5 by fixing devices 6. The pipe supports include a first pipe support 1, a second pipe support 2, a third pipe support 3, and a fourth pipe support 4. Each pipe support is equipped with a U-shaped buckle 7, which firmly fixes the water inlet pipe system 10 to the pipe support. The water inlet pipe system 10 is laid parallel to the length of the walkway trench 5. The water inlet pipe system 10 includes a first water inlet pipe 11, a second water inlet pipe 12, a third water inlet pipe 13 and a fourth water inlet pipe 14. The second water inlet pipe 12 and the fourth water inlet pipe 14 are located at a first height plane, and the first water inlet pipe 11 and the third water inlet pipe 13 are located at a second height plane that is lower than the first height plane. The difference between the two height planes is 0.45m. The water inlet branch pipe system 20 is connected to the water inlet pipe system 10 through pipe connectors. The water inlet branch pipe system 20 includes a low-zone domestic water system water inlet branch pipe 24, a low-zone automatic sprinkler system first water inlet branch pipe 25, an indoor fire hydrant system first water inlet branch pipe 23, a low-zone automatic sprinkler system second water inlet branch pipe 26, an indoor fire hydrant system second water inlet branch pipe 22, a high-zone automatic sprinkler system first water inlet branch pipe 27, a high-zone domestic water system water inlet branch pipe 21, and a high-zone automatic sprinkler system second water inlet branch pipe 28. These water inlet branch pipes are connected to the water inlet pipe system 10 to form various water systems.
[0024] Preferred, such as Figure 1As shown, a total of eight pipe connectors are provided, all of which are tees, including: first pipe connector 31, second pipe connector 32, third pipe connector 33, fourth pipe connector 34, fifth pipe connector 35, sixth pipe connector 36, seventh pipe connector 37, and eighth pipe connector 38. Fourth pipe connector 34 and fifth pipe connector 35 are located at the first water inlet pipe 11; third pipe connector 33 and sixth pipe connector 36 are located at the second water inlet pipe 12; second pipe connector 32 and seventh pipe connector 37 are located at the third water inlet pipe 13; and first pipe connector 31 and eighth pipe connector 38 are located at the fourth water inlet pipe 14. The fourth pipe connector 34 at the first water inlet pipe 11 connects to the water inlet branch pipe 24 of the low-zone domestic water system; the fifth pipe connector 35 at the first water inlet pipe 11 connects to the first water inlet branch pipe 25 of the low-zone automatic sprinkler system; the third pipe connector 33 at the second water inlet pipe 12 connects to the first water inlet branch pipe 23 of the indoor fire hydrant system; the sixth pipe connector 36 at the second water inlet pipe 12 connects to the second water inlet branch pipe 26 of the low-zone automatic sprinkler system; the second pipe connector 32 at the third water inlet pipe 13 connects to the second water inlet branch pipe 22 of the indoor fire hydrant system; the seventh pipe connector 37 at the third water inlet pipe 13 connects to the first water inlet branch pipe 27 of the high-zone automatic sprinkler system; the first pipe connector 31 at the fourth water inlet pipe 14 connects to the water inlet branch pipe 21 of the high-zone domestic water system; and the eighth pipe connector 38 at the fourth water inlet pipe 14 connects to the second water inlet branch pipe 28 of the high-zone automatic sprinkler system.
[0025] Preferably, each water inlet pipe is also equipped with a control valve 40, which includes a backflow preventer 41 and a check valve 42. The backflow preventer 41 is installed at the first water inlet pipe 11 and the fourth water inlet pipe 14, and the check valve 42 is installed at the second water inlet pipe 12 and the third water inlet pipe 13. Backflow preventer 41 on the first inlet pipe 11 is located between the fourth pipe connector 34 and the fifth pipe connector 35, with the water flow direction from the fourth pipe connector 34 to the fifth pipe connector 35; check valve 42 on the second inlet pipe 12 is located between the third pipe connector 33 and the sixth pipe connector 36, with the water flow direction from the third pipe connector 33 to the sixth pipe connector 36; check valve 42 on the third inlet pipe 13 is located between the second pipe connector 32 and the seventh pipe connector 37, with the water flow direction in the check valve 42 from the second pipe connector 32 to the seventh pipe connector 37; backflow preventer 41 on the fourth inlet pipe 14 is located between the first pipe connector 31 and the eighth pipe connector 38, with the water flow direction in the backflow preventer 41 from the first pipe connector 31 to the eighth pipe connector 38.
[0026] Preferably, the backflow preventer 41 on the first inlet pipe 11 ensures that water from the low-zone domestic water system can enter the low-zone automatic sprinkler system, while water from the low-zone automatic sprinkler system cannot enter the low-zone domestic water system, and the low-zone automatic sprinkler system does not contaminate the water in the low-zone domestic water system, thus enabling the low-zone domestic water system to replenish the water in the low-zone automatic sprinkler system; the backflow preventer 41 on the fourth inlet pipe 14 ensures that water from the high-zone domestic water system can enter the high-zone automatic sprinkler system, while water from the high-zone automatic sprinkler system cannot enter the high-zone domestic water system, and the high-zone automatic sprinkler system does not contaminate the high-zone domestic water system. The system uses water to ensure that the water from the high-zone domestic water system can supply the water for the high-zone automatic sprinkler system; the check valve 42 on the second inlet pipe 12 ensures that water from the indoor fire hydrant system can enter the low-zone automatic sprinkler system, while water from the low-zone automatic sprinkler system cannot enter the indoor fire hydrant system, thus ensuring that the indoor fire hydrant system can supply the water for the low-zone automatic sprinkler system; the check valve 42 on the third inlet pipe 13 ensures that water from the indoor fire hydrant system can enter the high-zone automatic sprinkler system, while water from the high-zone automatic sprinkler system cannot enter the indoor fire hydrant system, thus ensuring that the indoor fire hydrant system can supply the water for the high-zone automatic sprinkler system.
[0027] Specifically, in the subway vehicle depot complex, the water supply flow rate of the indoor fire hydrant system is 25L / s, the water supply flow rate of the automatic sprinkler system in the low zone is 32L / s, and the water supply flow rate of the automatic sprinkler system in the high zone is 32L / s. Therefore, the diameters of inlet pipes 11, 12, 13, and 14 are set to DN150mm to ensure smooth water supply.
[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A water supply pipe arrangement structure for a walkway trench in a subway vehicle depot complex, characterized in that, include: Pipe supports are fixedly installed in the walkway trench (5); A water inlet pipe system (10) is provided, which is laid parallel to the length of the walkway trench (5). The water inlet pipe system (10) is fixedly installed on the pipe support. The water inlet pipe system (10) includes a first water inlet pipe (11), a second water inlet pipe (12), a third water inlet pipe (13), and a fourth water inlet pipe (14). The second water inlet pipe (12) and the fourth water inlet pipe (14) are located at a first height plane, and the first water inlet pipe (11) and the third water inlet pipe (13) are located at a second height plane that is lower than the first height plane. The water inlet branch pipe system (20) is connected to the water inlet pipe system (10) through pipe connectors.
2. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 1, characterized in that: The water inlet branch pipe system (20) includes a low-zone domestic water system inlet branch pipe (24), a low-zone automatic sprinkler system first inlet branch pipe (25), an indoor fire hydrant system first inlet branch pipe (23), a low-zone automatic sprinkler system second inlet branch pipe (26), an indoor fire hydrant system second inlet branch pipe (22), a high-zone automatic sprinkler system first inlet branch pipe (27), a high-zone domestic water system inlet branch pipe (21), and a high-zone automatic sprinkler system second inlet branch pipe (28).
3. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 2, characterized in that: The pipe connectors are provided in total of 8, including: first pipe connector (31), second pipe connector (32), third pipe connector (33), fourth pipe connector (34), fifth pipe connector (35), sixth pipe connector (36), seventh pipe connector (37) and eighth pipe connector (38). The fourth pipe connector (34) and the fifth pipe connector (35) are provided at the first water inlet pipe (11), the third pipe connector (33) and the sixth pipe connector (36) are provided at the second water inlet pipe (12), the second pipe connector (32) and the seventh pipe connector (37) are provided at the third water inlet pipe (13), and the first pipe connector (31) and the eighth pipe connector (38) are provided at the fourth water inlet pipe (14).
4. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 3, characterized in that: The fourth pipe connector (34) at the first water inlet pipe (11) is connected to the low-zone domestic water system inlet branch pipe (24); the fifth pipe connector (35) at the first water inlet pipe (11) is connected to the first water inlet branch pipe (25) of the low-zone automatic sprinkler system; the third pipe connector (33) at the second water inlet pipe (12) is connected to the first water inlet branch pipe (23) of the indoor fire hydrant system; and the sixth pipe connector (36) at the second water inlet pipe (12) is connected to the second water inlet branch pipe (26) of the low-zone automatic sprinkler system. The second pipe connector (32) at the third water inlet pipe (13) is connected to the second water inlet branch pipe (22) of the indoor fire hydrant system; the seventh pipe connector (37) at the third water inlet pipe (13) is connected to the first water inlet branch pipe (27) of the high-altitude automatic sprinkler system; the first pipe connector (31) at the fourth water inlet pipe (14) is connected to the water inlet branch pipe (21) of the high-altitude domestic water system; and the eighth pipe connector (38) at the fourth water inlet pipe (14) is connected to the second water inlet branch pipe (28) of the high-altitude automatic sprinkler system.
5. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 3, characterized in that, It also includes a control valve (40), which includes a backflow preventer (41) and a check valve (42). The backflow preventer (41) is located at the first water inlet pipe (11) and the fourth water inlet pipe (14), and the check valve (42) is located at the second water inlet pipe (12) and the third water inlet pipe (13).
6. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 5, characterized in that: The backflow preventer (41) on the first water inlet pipe (11) is located between the fourth pipe connector (34) and the fifth pipe connector (35). In the backflow preventer (41) on the first water inlet pipe (11), the water flow direction is from the fourth pipe connector (34) to the fifth pipe connector (35).
7. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 5, characterized in that: The check valve (42) on the second water inlet pipe (12) is located between the third pipe connector (33) and the sixth pipe connector (36). In the check valve (42) on the second water inlet pipe (12), the water flow direction is from the third pipe connector (33) to the sixth pipe connector (36).
8. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 1, characterized in that: The pipe support is provided in two layers. The pipe support is set on the side wall of the walkway trench (5) by a fixing device (6). The pipe support includes a first pipe support (1), a second pipe support (2), a third pipe support (3) and a fourth pipe support (4). The first pipe support (1), the second pipe support (2), the third pipe support (3) and the fourth pipe support (4) are all provided with U-shaped buckles (7) to fix the water inlet pipe system (10).
9. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 1, characterized in that: The diameter of each inlet pipe in the water inlet system (10) is DN150mm.
10. The water supply pipe arrangement structure of the corridor trench of the subway vehicle depot complex as described in claim 1, characterized in that: The first elevation plane and the second elevation plane differ by 0.45m.