A prefabricated modular fire pressure reducing valve assembly

Abstract

A prefabricated modular fire-fighting pressure reducing valve assembly device relates to the technical field of pressure reducing valve, and includes a main frame for foundation support, at least one pressure reducing unit fixed on the main frame, each pressure reducing unit including two adjustable pressure reducing valves transversely arranged at the bottom of the main frame, two water inlet channels respectively arranged upstream of the corresponding adjustable pressure reducing valves, two water outlet channels respectively arranged downstream of the corresponding adjustable pressure reducing valves, the water inlet channels and the water outlet channels being arranged in parallel along the vertical direction on opposite sides of the main frame, and the adjustable pressure reducing valves being transversely connected and arranged between the water inlet channels and the water outlet channels. The utility model fundamentally reconstructs the space logic and function implementation mode of the fire-fighting pressure reducing valve group through the U-shaped modular structure supported by the three-dimensional frame, and the collaborative design of the main frame and the vertical channel converts the traditional horizontal straight-through layout into a compact three-dimensional structure.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing valve technology, and in particular to a prefabricated modular fire pressure reducing valve assembly device. Background Technology

[0002] In large-scale building fire protection engineering, zoned fire water supply systems require the installation of zoned pressure-reducing valve assemblies for hydraulic regulation. However, these valve assemblies are characterized by numerous accessories and components, resulting in low on-site installation efficiency and long installation times. Currently, zoned pressure-reducing valve assemblies are typically arranged horizontally within the fire pump room. This layout significantly occupies room space, which is often limited by civil engineering constraints.

[0003] refer to Figure 6 To control pipeline manufacturing costs, existing technologies typically employ the straight-through horizontal pipeline layout shown in the diagram. This approach features straight pipelines with fewer bends, a relatively simple structure, and well-established basic functions and installation feasibility. It also integrates necessary filtration and pressure-reducing components.

[0004] However, this type of layout has obvious shortcomings: it occupies a large floor space and has a low utilization rate of the valuable space in the computer room; more importantly, the components are horizontally distributed along the long straight pipeline, and the maintenance operation surface requires a narrow passage to match it. In addition, the height and position of the key components may not be conducive to daily inspection and rapid maintenance operations; furthermore, the long straight shape of the valve group has strict requirements on the shape and size of the installation site, and is often limited by the complex civil engineering structure such as partition columns and equipment foundations in the computer room, resulting in insufficient layout flexibility. Utility Model Content

[0005] The technical problem this invention aims to solve is how to significantly reduce the required machine room footprint by optimizing the structural layout of the pressure reducing valve assembly.

[0006] To achieve the above objectives, according to one aspect of the utility model, a prefabricated modular fire-fighting pressure-reducing valve assembly is provided, comprising: a main frame for foundation support; at least one pressure-reducing unit fixed to the main frame; each pressure-reducing unit comprising: two adjustable pressure-reducing valves, the adjustable pressure-reducing valves being laterally disposed at the bottom of the main frame; two water inlet channels, respectively disposed upstream of the corresponding adjustable pressure-reducing valves; two water outlet channels, respectively disposed downstream of the corresponding adjustable pressure-reducing valves; the water inlet channels and the water outlet channels are both arranged vertically parallel to each other on opposite sides of the main frame; the adjustable pressure-reducing valves are laterally connected between the water inlet channels and the water outlet channels.

[0007] This device is a prefabricated modular structure. It can be manufactured in the factory as a complete set, transported to the construction site, and connected. This greatly reduces on-site construction time, effectively shortens the construction period of the computer room, and speeds up the overall construction progress.

[0008] As a preferred embodiment of the above technical solution, it also includes a first water collection tee, wherein the two inlets of the first water collection tee are respectively connected to the two water outlet channels; and the water outlet of the first water collection tee is connected to a single water outlet main pipe.

[0009] As a preferred embodiment of the above technical solution, it also includes a second water collection tee, wherein the two outlets of the second water collection tee are respectively connected to the two water inlet channels; and the water inlet of the second water collection tee is connected to a single water inlet main pipe.

[0010] As a preferred embodiment of the above technical solution, the water inlet channel includes an inlet pipe, a pre-valve inspection valve, and a pre-valve filter. The inlet pipe is connected to the adjustable pressure reducing valve. The pre-valve inspection valve and the pre-valve filter are installed on the inlet pipe, and the pre-valve inspection valve is located upstream of the pre-valve filter. The installation height of the pre-valve inspection valve and the pre-valve filter is less than two meters.

[0011] As a preferred embodiment of the above technical solution, the water inlet channel further includes two pressure gauges, which are respectively located upstream of the pre-valve maintenance valve and downstream of the pre-valve filter.

[0012] As a preferred embodiment of the above technical solution, the water outlet channel includes a water outlet pipe, a downstream maintenance valve, and a safety valve, wherein the installation height of the downstream maintenance valve and the safety valve is less than two meters.

[0013] As a preferred embodiment of the above technical solution, the main frame includes a three-dimensional structure, a bottom support structure, and a plurality of riser supports disposed on the three-dimensional structure; the bottom support structure is used to support the adjustable pressure reducing valve; the riser supports are disposed on the three-dimensional structure and assist the water inlet channel or the water outlet channel to be vertically disposed on the three-dimensional structure.

[0014] As a preferred embodiment of the above technical solution, a shock-absorbing flexible joint is provided downstream of the adjustable pressure reducing valve.

[0015] As a preferred embodiment of the above technical solution, it is characterized by further comprising two pressure-reducing units, which are arranged parallel to each other on the main frame.

[0016] As a preferred embodiment of the above technical solution, a third water-collecting tee is provided between the two water outlet channels of a single pressure reducing unit. The third water-collecting tee connects the two water outlet channels, and the other end of the third water-collecting tee is connected to the downstream pressure test drain pipe, and the downstream pressure test drain pipe is provided with a downstream pressure test drain valve. In addition, the downstream pressure test drain pipes of two adjacent pressure reducing units are connected to the downstream test main pipe through a fourth water-collecting tee.

[0017] In summary, this utility model has the following advantages:

[0018] This utility model fundamentally reconstructs the spatial logic and functional implementation of fire pressure reducing valve groups through a U-shaped modular structure supported by a three-dimensional frame. The coordinated design of the main frame and vertical channels transforms the traditional horizontal straight-through layout into a compact three-dimensional structure. As a result, the structure can be prefabricated in the factory and then transported to the corresponding location for installation, which speeds up the on-site installation. In addition, due to the compact structure of this device, transportation is relatively convenient, and transportation costs are reduced.

[0019] Furthermore, the U-shaped fluid path formed by the inlet and outlet channels and the pressure reducing valve, combined with the integrated control of the dual pressure reducing valves by the water collection tee, achieves a redundant configuration of one in use and one in standby within less than half the footprint of a traditional valve group. The process of switching the standby flow channel can be completed without manual intervention and without disturbance.

[0020] Furthermore, the height of the key components of this utility model has been adaptively adjusted, controlling the height of all valves, filters and instruments to below two meters. Maintenance personnel can perform filter cleaning, valve opening and closing and pressure diagnosis operations by hand while standing, completely eliminating the risk of climbing operations.

[0021] Further or other beneficial effects will be discussed in the embodiments. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention from one direction;

[0023] Figure 2 This is a perspective view of the present invention from another direction;

[0024] Figure 3 This is the left view of the present invention;

[0025] Figure 4 This is a rear view of the present invention;

[0026] Figure 5 This is the front view of the present utility model;

[0027] Figure 6 This is a schematic diagram of a standard fire-fighting pressure reducing valve assembly module.

[0028] Among them, 100-main frame, 101-three-dimensional structure, 102-bottom support structure, 103-riser support, 200-adjustable pressure reducing valve, 300-inlet channel, 310-inlet pipe, 320-pre-valve maintenance valve, 330-pre-valve filter, 340-pressure gauge, 400-outlet channel, 410-outlet pipe, 420-post-valve maintenance valve, 430-safety valve, 500-first water collection tee, 600-outlet main pipe, 700-second water collection tee, 800-inlet main pipe, 910-third water collection tee, 920-post-valve pressure test drain pipe, 930-post-valve pressure test drain valve, 940-fourth water collection tee, 950-post-valve test main pipe. Detailed Implementation

[0029] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0030] The present invention will be further explained below with reference to the embodiments: Example

[0031] A prefabricated modular fire-fighting pressure reducing valve assembly device, referring to Figure 1 and Figure 2 It includes a main frame 100 and a pressure reduction unit disposed on the main frame 100.

[0032] The main frame 100 is used for basic support. The main frame 100 includes a three-dimensional structure 101, a bottom support structure 102, and several riser supports 103 set on the three-dimensional structure 101.

[0033] The pressure reducing unit includes two adjustable pressure reducing valves 200, two inlet channels 300, and two outlet channels 400. The adjustable pressure reducing valves 200 are horizontally positioned at the bottom of the main frame 100; specifically, the adjustable pressure reducing valves 200 are supported by a bottom support structure 102. The two inlet channels 300 are respectively positioned upstream of the corresponding adjustable pressure reducing valve 200; the two outlet channels 400 are respectively positioned downstream of the corresponding adjustable pressure reducing valve 200. Pipe support 103 is installed on the three-dimensional structure 101. The riser support 103 is a "U"-shaped metal hoop that is wrapped around the water inlet channel 300 or the water outlet channel 400 to assist the water inlet channel 300 or the water outlet channel 400 in being vertically installed on the three-dimensional structure 101. The water inlet channel 300 and the water outlet channel 400 are both arranged in parallel along the vertical direction on opposite sides of the main frame 100. The adjustable pressure reducing valve 200 is horizontally connected and installed between the water inlet channel 300 and the water outlet channel 400.

[0034] The device forms a "U"-shaped structure with a vertically arranged water inlet channel 300, a main water outlet pipe 600, and a horizontally arranged adjustable pressure reducing valve 200. The optimized spatial layout minimizes the operating space of the machine room.

[0035] The pressure reducing unit also includes a first water collection tee 500, the two outlets of the first water collection tee 500 are respectively connected to two water outlet channels 400, and the inlet of the first water collection tee 500 is connected to a single water outlet main pipe 600.

[0036] Based on the above structural configuration, the two adjustable pressure reducing valves 200 in the pressure reducing unit are configured in a one-in-one-backup manner, and the automatic flow convergence and backup switching of the fluid are achieved by sharing the first water collection tee 500 and a single water outlet main pipe 600. Based on the space-optimized layout and integrated one-in-one-backup configuration, the device also realizes the self-activation of the backup flow channel and the seamless switching of the fluid in a single pressure reducing unit, while providing redundant pressure reducing paths in a very small footprint.

[0037] The pressure reducing unit also includes a second water collection tee 700, the two outlets of which are connected to two water inlet channels 300 respectively; the water inlet of the second water collection tee 700 is connected to a single water inlet main pipe 800.

[0038] The inlet main pipe 800 and the outlet main pipe 600 are arranged parallel to each other in spatial position, and at least partially located above the main frame 100. The inlet of the inlet main pipe 800 and the outlet of the outlet main pipe 600 face each other. The inlet main pipe 800 and the outlet main pipe 600 are arranged perpendicular to the inlet channel 300 in spatial position. The inlet main pipe 800 and the outlet main pipe 600 are arranged perpendicular to the outlet channel 400 in spatial position. The inlet main pipe 800 and the outlet main pipe 600 are arranged perpendicular to the adjustable pressure reducing valve 200 in spatial position. This design avoids the external pipeline interfaces being concentrated in one area, providing installation space for the operation and observation components, and also providing maintenance personnel with corresponding maintenance space, so as not to have to adopt an awkward posture for maintenance.

[0039] The water inlet channel 300 includes an inlet pipe 310, a pre-valve inspection valve 320, and a pre-valve filter 330. The inlet pipe 310 is connected to the adjustable pressure reducing valve 200. The pre-valve inspection valve 320 and the pre-valve filter 330 are mounted on the inlet pipe 310, with the inspection valve 320 positioned upstream of the pre-valve filter 330. This creates a physical barrier upstream of the pressure reducing valve, allowing for single-valve isolation for filter cleaning. The installation height of the pre-valve inspection valve 320 and the pre-valve filter 330 is less than two meters.

[0040] The water inlet channel 300 also includes two pressure gauges 340, which are respectively located upstream of the pre-valve maintenance valve 320 and downstream of the pre-valve filter 330. More precisely, the pressure gauges 340 are located upstream and downstream of the filter to detect the pressure before and after the filter. By comparing the pressure difference between the two gauges in real time, the system can provide early warning of filter clogging and diagnose the inlet condition of the pressure reducing valve.

[0041] The water outlet channel 400 includes a water outlet pipe 410, a downstream maintenance valve 420, and a safety valve 430. The installation height of the downstream maintenance valve 420 and the safety valve 430 is less than two meters.

[0042] In this embodiment, the structure used for maintenance is set at a height of more than two meters, preferably between one and two meters. This allows operators to open and close valves by hand while standing, thus avoiding the risk of climbing and improving maintenance efficiency. The installation position of more than one meter also avoids bending over to operate.

[0043] Since the pressure difference across the pressure reducing valve can easily cause pipeline vibration, leading to system instability or leakage, in this embodiment, a vibration damping flexible joint is provided downstream of the adjustable pressure reducing valve 200. Furthermore, the pressure reducing valve is connected to the inlet channel 300 and the outlet channel 400 through a short pipe. The bottom support structure 102 independently supports the pressure reducing valve and the short pipe, reducing vibration transmission. The flexible joint acts as a buffer component, improving system stability, meeting fire protection requirements, and reducing maintenance needs caused by vibration.

[0044] To be more specific, refer to Figures 1 to 4 ( Figure 5 (For directional reference), the prefabricated modular fire pressure reducing valve assembly in this embodiment includes two pressure reducing units, which are arranged parallel to each other on the main frame 100. According to the relevant specifications, the pressure-boosting valve assembly must be equipped with a post-valve pressure test structure for periodic verification of pressure reducing performance. Therefore, in this embodiment, a third water-collecting tee 910 is provided between the two water outlet channels 400 of a single pressure reducing unit. The third water-collecting tee 910 connects the two water outlet channels 400, and the other end of the third water-collecting tee 910 is connected to the post-valve pressure test drain pipe 920. A post-valve pressure test drain valve 930 is provided on the post-valve pressure test drain pipe 920. In addition, the post-valve pressure test drain pipes 920 of two adjacent pressure reducing units are connected to the downstream post-valve test main pipe 950 through a fourth water-collecting tee 940. The downstream pressure test drain pipe 920 can provide emergency pressure relief in case of overpressure downstream of the valve, preventing the pressure reducing valve from failing and causing the pipeline to burst. Through the above settings, a hierarchical drainage path is achieved, with lateral flow collection within the pressure reducing unit and longitudinal flow convergence between units, avoiding the intersection of multiple pipelines. In general, all the designs in this embodiment are aimed at concentrating all water pipes and valve units within the main framework as much as possible while ensuring safety, thereby making the best use of limited space.

[0045] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A prefabricated modular fire-fighting pressure reducing valve assembly, characterized in that, include: The main frame (100) used for basic support. At least one pressure-reducing unit is fixed to the main frame (100); each pressure-reducing unit includes: Two adjustable pressure reducing valves (200) are arranged laterally at the bottom of the main frame (100); Two water inlet channels (300) are respectively located upstream of the corresponding adjustable pressure reducing valve (200); Two water outlet channels (400) are respectively located downstream of the corresponding adjustable pressure reducing valve (200); The water inlet channel (300) and the water outlet channel (400) are both arranged vertically and parallel to each other on opposite sides of the main frame (100); the adjustable pressure reducing valve (200) is arranged horizontally between the water inlet channel (300) and the water outlet channel (400).

2. The prefabricated modular fire-fighting pressure reducing valve assembly according to claim 1, characterized in that, It also includes a first water collection tee (500), the two inlets of which are respectively connected to the two water outlet channels (400); the outlet of the first water collection tee (500) is connected to a single water outlet main pipe (600).

3. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 2, characterized in that, It also includes a second water collection tee (700), the two outlets of which are respectively connected to the two water inlet channels (300); the water inlet of the second water collection tee (700) is connected to a single water inlet main pipe (800).

4. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 1, characterized in that, The water inlet channel (300) includes an inlet pipe (310), a pre-valve maintenance valve (320), and a pre-valve filter (330). The inlet pipe (310) is connected to the adjustable pressure reducing valve (200). The pre-valve maintenance valve (320) and the pre-valve filter (330) are installed on the inlet pipe (310), and the pre-valve maintenance valve (320) is located upstream of the pre-valve filter (330). The installation height of the pre-valve maintenance valve (320) and the pre-valve filter (330) is less than two meters.

5. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 4, characterized in that, The water inlet channel also includes two pressure gauges (340), which are respectively located upstream of the pre-valve maintenance valve (320) and downstream of the pre-valve filter (330).

6. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 1, characterized in that, The water outlet channel (400) includes a water outlet pipe (410), a downstream maintenance valve (420), and a safety valve (430). The installation height of the downstream maintenance valve (420) and the safety valve (430) is less than two meters.

7. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 1, characterized in that, The main frame (100) includes a three-dimensional structure (101), a bottom support structure (102), and a plurality of riser supports (103) disposed on the three-dimensional structure; the bottom support structure (102) is used to support the adjustable pressure reducing valve (200); the riser supports (103) are disposed on the three-dimensional structure (101) and assist the water inlet channel (300) or the water outlet channel (400) to be vertically disposed on the three-dimensional structure (101).

8. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 1, characterized in that, A shock-absorbing flexible joint is provided downstream of the adjustable pressure reducing valve (200).

9. A prefabricated modular fire-fighting pressure reducing valve assembly according to any one of claims 1 to 8, characterized in that, It also includes two pressure-reducing units, which are arranged parallel to each other on the main frame (100).

10. A prefabricated modular fire-fighting pressure reducing valve assembly according to claim 9, characterized in that, A third water-collecting tee (910) is provided between the two water outlet channels (400) of a single pressure reducing unit. The third water-collecting tee (910) connects the two water outlet channels (400). The other end of the third water-collecting tee (910) is connected to the downstream pressure test drain pipe (920), and the downstream pressure test drain pipe (920) is provided with a downstream pressure test drain valve (930). In addition, the downstream pressure test drain pipes (920) of two adjacent pressure reducing units are connected to the downstream test main pipe (950) through a fourth water-collecting tee (940).

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