BIM-based prefabricated fire pump house

Abstract

The utility model discloses an assembly type fire pump house based on BIM, solves the low installation efficiency problem of fire pump house in the prior art. The utility model discloses including external pump unit and internal pump unit, internal pump unit includes at least one fire plug pump I and at least one air pressure tank I, the water inlet of fire plug pump I is connected to the waterproof pool water suction pipe through first pipe, and the water outlet of fire plug pump I is connected to the indoor fire hydrant pipe through second pipe, and at least one fire plug pressure -stabilizing pump I is connected on air pressure tank I, and the water inlet of fire plug pressure -stabilizing pump I is connected to the waterproof pool water suction pipe through third pipe, and the water outlet of fire plug pressure -stabilizing pump I is connected to the indoor fire hydrant pipe through fourth pipe. The utility model discloses external pump unit and internal pump unit modular design, through internal and external pump unit zoning configuration, pressure -stabilizing system integration and BIM technology empowerment, make this fire pump house be superior to traditional fire pump house on reliability, construction efficiency, maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment design and construction installation technology, and in particular to a fire pump room. Background Technology

[0002] The machine rooms of urban subway stations, especially the fire pump rooms, are often the most challenging areas in the design and construction of fire protection equipment. They involve numerous pieces of equipment and pipelines, and the construction is difficult. The precision requirements for various key components are extremely high, with dimensional accuracy errors generally required to be within 1mm. Conventional construction processes require a large amount of cutting and welding work, making it difficult to control the construction quality. This also requires a high level of skill from the construction personnel, and results in a significant waste of materials, pollution, and adverse effects on the health of workers. Furthermore, conventional construction methods are slow and inefficient, while subway station electromechanical and fire protection construction has tight schedule requirements, which conventional methods are difficult to meet.

[0003] Existing fire pump rooms, such as the Chinese patent with authorization announcement number CN 209585172 U, disclose an arrangement system for a fire water tank and a fire pump room. In this system, the ground level of the fire pump room is lower than the ground level of the left side of the fire water tank, but higher than the ground level of the suction pit. A vertical fire pump is installed on the ground of the fire pump room. The inlet of the fire pump at its left end is connected to the suction pit via a suction pipe assembly. The outlet of the fire pump at its right end is connected to an outlet pipe assembly. The fire pump also has a vent hole, and the height of the lowest effective water level is higher than the height of the vent hole. This improves the utilization rate of the fire water tank and effectively reduces the area occupied by the fire water tank. However, its installation conditions are affected by civil engineering, requiring the pre-pouring of equipment foundations before equipment placement and pipe connection, resulting in low installation efficiency. Therefore, it is necessary to provide a new type of fire pump room to solve the problems of difficult quality control, high pollution, and long construction period in machine room construction. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a BIM-based prefabricated fire pump room, which solves the problem of low installation efficiency in existing fire pump rooms.

[0005] The technical solution of this utility model is implemented as follows: A BIM-based prefabricated fire pump room includes an external pump unit and an internal pump unit; the internal pump unit includes at least one fire hydrant pump I and at least one pressure tank I; the inlet of the fire hydrant pump I is connected to the suction pipe of the waterproof pool through a first pipe, the outlet of the fire hydrant pump I is connected to the indoor fire hydrant pipe through a second pipe, at least one fire hydrant pressure stabilizing pump I is connected to the pressure tank I, the inlet of the fire hydrant pressure stabilizing pump I is connected to the suction pipe of the waterproof pool through a third pipe, and the outlet of the fire hydrant pressure stabilizing pump I is connected to the indoor fire hydrant pipe through a fourth pipe.

[0006] The external pump unit includes at least one fire hydrant pump II and at least one pressure tank II; the inlet of fire hydrant pump II is connected to the suction pipe of the waterproof pool through the fifth pipe, and the outlet of fire hydrant pump II is connected to the outdoor fire hydrant pipe through the sixth pipe; at least one fire hydrant pressure stabilizing pump II is connected to the pressure tank II, the inlet of fire hydrant pressure stabilizing pump II is connected to the suction pipe of the waterproof pool through the seventh pipe, and the outlet of fire hydrant pressure stabilizing pump II is connected to the outdoor fire hydrant pipe through the eighth pipe.

[0007] Further optimization involves eccentric reducers at the inlets of the fire hydrant pump I, fire hydrant pump II, fire hydrant pressure stabilizing pump I, and fire hydrant pressure stabilizing pump II, and concentric reducers at the outlets of the same pump. This eccentric inlet and concentric outlet design with reducers minimizes cavitation vibration and extends the pump's service life.

[0008] Further optimization involves installing filters, rising stem gate valves, and a first pressure gauge along the water inlet direction on the first, third, fifth, and seventh pipelines. Filtering precedes gate valve operation, followed by pressure measurement, ensuring testing accuracy while simultaneously protecting the pump body.

[0009] Further preferably, both the second and sixth pipelines are equipped with a second pressure gauge, a check valve, and a gate valve along the water outlet direction. Further preferably, both the second and sixth pipelines are connected to a test pipe, which is connected between the check valve and the gate valve; a flow meter is installed on the test pipe. The test pipe, inserted between the check valve and the gate valve, can achieve self-regulating pressure and venting, avoiding air hammer error in the flow meter.

[0010] Further optimization involves installing check valves on the fourth and eighth pipes, and drain valves on the second, fourth, sixth, and eighth pipes.

[0011] Further preferably, both the indoor fire hydrant pipe and the outdoor fire hydrant pipe are connected to a pressure relief pipe; the pressure relief pipe is equipped with a safety valve, a filter, a rising stem gate valve, and a first pressure gauge. Further preferably, both the indoor fire hydrant pipe and the outdoor fire hydrant pipe are also connected to a third pressure gauge and a butterfly valve.

[0012] Further optimization involves equipping the suction pipe of the waterproof pool with a copper-core gate valve and a vortex preventer. The vortex preventer prevents the water flow from forming vortices, thereby avoiding air entering the water pump and damaging it.

[0013] Further preferred, the internal pump unit includes two fire hydrant pumps I and one pressure tank I, with two fire hydrant pressure stabilizing pumps I connected to the pressure tank I; the external pump unit includes two fire hydrant pumps II and one pressure tank II, with two fire hydrant pressure stabilizing pumps II connected to the pressure tank II.

[0014] The beneficial effects of this utility model are as follows: The prefabricated fire pump room based on BIM of this utility model adopts a modular design of external pump unit and internal pump unit. Through the partitioned configuration of internal and external pump units, the integration of the pressure stabilization system and the empowerment of BIM technology, the fire pump room is significantly superior to the traditional fire pump room in terms of reliability, construction efficiency and maintenance convenience. It is especially suitable for scenarios with high requirements for rapid deployment and system stability.

[0015] This utility model features an external pump unit that operates independently from the internal pump unit, exhibiting a high degree of integration. The fire hydrant pump, pressure tank, and pressure stabilizing pump are compactly arranged within the same module. During maintenance, the entire unit can be removed simply by disconnecting the quick-connect fittings, significantly reducing maintenance time. Modular prefabrication means that the pump room unit (including pump sets, piping, and pressure tank) is prefabricated as modular components in the factory, requiring only flange or clamp connections on-site. This greatly shortens the construction cycle and reduces on-site welding pollution. Furthermore, by using a BIM model to pre-check conflicts between the waterproof pool suction pipe, indoor fire hydrant pipe, and structural beams and columns, the routing of the first to fourth pipes is optimized, avoiding on-site rework and saving material costs. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model, the drawings 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.

[0017] Figure 1 This is a schematic diagram of the overall layout of this utility model; Figure 2 This is a schematic diagram of the external pump unit layout of this utility model; Figure 3 This is a schematic diagram of the internal pump unit arrangement of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1, such as Figure 1As shown, a BIM-based prefabricated fire pump house includes an external pump unit and an internal pump unit. The modular design of both units, through zoned configuration, integrated pressure stabilization system, and BIM technology, significantly outperforms traditional fire pump houses in terms of reliability, construction efficiency, and maintenance convenience. It is particularly suitable for scenarios requiring rapid deployment and high system stability. The external and internal pump units operate independently and serve as backups for each other. If one system fails (e.g., the external pump malfunctions), the other can immediately take over, ensuring uninterrupted fire water supply. Figure 3 As shown, in this embodiment, the internal pump unit includes at least one fire hydrant pump I1 and at least one pressure tank I3. Pressure tank I stores energy through pre-charged gas compression, enabling rapid response to small flow demands during initial fires (such as pipeline leaks or water testing), reducing the number of starts and stops of pressure-stabilizing pump I, and avoiding pressure fluctuations. The internal unit, equipped with pressure tank I and pressure-stabilizing pump I, can independently maintain the pressure of the indoor fire hydrant network, avoiding frequent starts of external pumps and extending equipment lifespan. The inlet of fire hydrant pump I1 is connected to the waterproof tank suction pipe 19 via a first pipe 101, and the outlet of fire hydrant pump I1 is connected to the indoor fire hydrant pipe 110 via a second pipe 102. At least one fire hydrant pressure-stabilizing pump I2 is connected to pressure tank I3. The inlet of fire hydrant pressure-stabilizing pump I2 is connected to the waterproof tank suction pipe 19 via a third pipe 103, and the outlet of fire hydrant pressure-stabilizing pump I2 is connected to the indoor fire hydrant pipe 110 via a fourth pipe 104. The internal unit directly serves the indoor piping network, shortening the pressure stabilization response path and providing more precise pressure regulation compared to traditional centralized pressure stabilization methods. The pump room unit (including pump sets, piping, and pressure tanks) is prefabricated as modular components in the factory, requiring only flange or clamp connections on-site, reducing construction time by over 50% and minimizing on-site welding pollution. Fire hydrant pump I, pressure tank I, and pressure stabilizing pump I are compactly arranged in the same module; during maintenance, the entire unit can be removed simply by disconnecting the quick-connect fittings, reducing maintenance time.

[0020] like Figure 2As shown, the external pump unit includes at least one fire hydrant pump II 21 and at least one pressure tank II 23. The inlet of fire hydrant pump II 21 is connected to the suction pipe 19 of the waterproof pool via the fifth pipe 105, and the outlet of fire hydrant pump II 21 is connected to the outdoor fire hydrant pipe 111 via the sixth pipe 106. At least one fire hydrant pressure stabilizing pump II 22 is connected to the pressure tank II 23. The fire hydrant pressure stabilizing pump I and fire hydrant pressure stabilizing pump II are designed separately, resulting in more stable pressure and reduced pump start-up and shutdown frequency. The pressure tank II only needs to be connected to the outdoor pipe network, and its volume can be accurately calculated based on the outdoor ring network leakage rate + simultaneous opening of 3 fire hydrants, reducing the tank size compared to the shared solution. The inlet of fire hydrant pressure stabilizing pump II 22 is connected to the suction pipe 19 of the waterproof pool via the seventh pipe 107, and the outlet of fire hydrant pressure stabilizing pump II 22 is connected to the outdoor fire hydrant pipe 111 via the eighth pipe 108. The "external pump unit" is also made into a completely independent subsystem with its own pressure stabilization, so that the outdoor fire hydrant network can also be "pressurized immediately upon opening, stabilized for a long time, operated independently, and not hindered by the indoor system".

[0021] In this embodiment, an eccentric reducer 4 is further preferably provided at the inlet of the fire hydrant pump I1, the inlet of the fire hydrant pump II21, the inlet of the fire hydrant pressure stabilizing pump I2, and the inlet of the fire hydrant pressure stabilizing pump II22. Concentric reducers 18 are provided at the outlets of the fire hydrant pump I1, the fire hydrant pump II21, the fire hydrant pressure stabilizing pump I2, and the fire hydrant pressure stabilizing pump II22. The eccentric reducer 4 is located at the pump inlet, ensuring a uniform flow velocity transition to the pump inlet and preventing flow deviation and vortices. The concentric reducer is located at the pump outlet, symmetrically expanding the diameter, minimizing head loss, eliminating additional radial thrust, and protecting the pump casing and coupling. The eccentric inlet and concentric outlet of the aforementioned reducer eliminate cavitation vibration and extend the service life of the pump.

[0022] Example 2 presents a BIM-based prefabricated fire pump room, further optimized from Example 1. In this example, filters 6, rising stem gate valves 7, and a first pressure gauge 9 are installed along the water inlet direction on the first pipe 101, third pipe 103, fifth pipe 105, and seventh pipe 107. The filters intercept welding slag, nuts, and concrete fragments from the water tank outside the pump, protecting the impeller, pressure tank diaphragm, and check valve sealing surfaces. The rising stem gate valve 7 allows for visual inspection of the valve status during pump maintenance, preventing accidental partial opening or closing that could cause cavitation at the pump inlet. The first pressure gauge 9 displays the pressure within the pipe, providing real-time readings of the "net suction head" or "positive head," which can be compared with the pump performance curve to detect filter blockage early. This process of filtering before gate valve operation and then pressure measurement ensures accurate testing, reduces pump damage, extends the service life of the fire pump system, and lowers costs.

[0023] In this preferred embodiment, both the second pipe 102 and the sixth pipe 106 are equipped with a second pressure gauge 10, a check valve 11, and a gate valve 5 along the water outlet direction. The second pressure gauge is paired with the "first pressure gauge" at the suction inlet to calculate the pump head in real time; the check valve 11 prevents instantaneous backflow due to high water pressure in the outdoor / indoor pipe network, protecting the pump body; the gate valve 5 can be a rising stem gate valve, which completely cuts off the high-pressure side when inspecting the check valve or the pump, avoiding pressurized operation. Both the second pipe 102 and the sixth pipe 106 are connected to a test pipe 109, which is connected between the check valve 11 and the gate valve 5; a flow meter 16 is installed on the test pipe 109. The test pipe "inserted between the check valve and the gate valve" enables online testing of pump performance and ensures accurate flow meter readings.

[0024] In this embodiment, check valves 11 are installed on the fourth pipe 104 and the eighth pipe 108, and drain valves 20 are installed on the second pipe 102, the fourth pipe 104, the sixth pipe 106, and the eighth pipe 108. The check valve on the fourth pipe prevents high-pressure water from flowing back into the pressure stabilizing pump and pressure tank when the indoor main pump (fire hydrant pump I) starts at a high flow rate, thus avoiding overpressure in the tank and diaphragm tearing. The check valve on the eighth pipe, for the outdoor system, prevents high-pressure water from fire hydrant pump II from flowing back into pressure tank II. The drain valve can drain water stored in the hydrant head in winter to prevent pipe sections from bursting due to ice expansion; BIM automatic positioning locks the drain valve elevation at "pipe bottom + 150mm" in the model, automatically avoids cable trays, generates a 3D screenshot for civil engineering, and reserves 100mm for floor drains or sump sidewall sleeves.

[0025] In this embodiment, both the indoor fire hydrant pipe 110 and the outdoor fire hydrant pipe 111 are connected to pressure relief pipes 112; the pressure relief pipes 112 are equipped with a safety valve 13, a filter 6, a rising stem gate valve 7, and a first pressure gauge 9. Both the indoor fire hydrant pipe 110 and the outdoor fire hydrant pipe 111 are also connected to a third pressure gauge 15 and a butterfly valve 12. The water suction pipe 19 of the waterproof pool is equipped with a copper core gate valve 17 and a vortex preventer 8. The vortex preventer prevents the water flow from forming vortices (eddies), thereby avoiding air entering the water pump and damaging it.

[0026] Example 3: A BIM-based prefabricated fire pump room, such as... Figure 1 As shown, based on Embodiment 1 or 2, this embodiment further optimizes the system. The internal pump unit includes two fire hydrant pumps I1 and one pressure tank I3, with two fire hydrant pressure stabilizing pumps I2 connected to the pressure tank I3. The external pump unit includes two fire hydrant pumps II21 and one pressure tank II23, with two fire hydrant pressure stabilizing pumps II22 connected to the pressure tank II23. The standard configuration consists of dual main pumps, dual pressure stabilizing pumps, and a single pressure tank, forming a complete redundancy chain of "one in use, one standby, and one pressure stabilizing" for both indoor and outdoor systems. This meets all specifications at once, ensures zero-perception of fault switching, and allows for doubling of flow rate without increasing capacity.

[0027] The specific construction steps include: Step 1: Based on the computer room design drawings, create BIM models of all components, including equipment, pipes, and fittings. Communicate and coordinate with the computer room equipment manufacturers to conduct detailed optimization design of the equipment and piping. During the optimization process, fully consider the rationality, functionality, applicability, and aesthetics of the equipment and pipe locations, following the principles of prioritizing larger components, pressurized pipes yielding to unpressurized pipes, cold water pipes yielding to hot water pipes, and gas pipes yielding to liquid pipes. Pipelines should be straight, parallel, and evenly spaced to maintain a neat and aesthetically pleasing appearance.

[0028] Step Two: Based on the optimized BIM renderings, generate and export the pipe segment fabrication drawings. The manufacturer produces pipes and fittings according to the drawings, and all pipes are numbered according to the assembly sequence. When dividing the pipe segmentation range, the actual situation should be taken into account to minimize the number of interfaces, while also considering factors such as the size and weight of modular fittings to reduce the difficulty of transportation and on-site installation.

[0029] This is the most crucial step in the prefabricated construction of the computer room. Compared with conventional construction methods, this step can greatly reduce the difficulty of on-site piping and key installation, improve construction efficiency, completely avoid on-site cutting and welding processes, and save energy and protect the environment.

[0030] Step 3: Based on the determined equipment size, determine the dimensions of the equipment foundation. After on-site layout and positioning, proceed with the pouring of the equipment foundation. Once the foundation reaches sufficient strength, remove the formwork and position and install the equipment base, providing conditions for the equipment to be installed on site. During construction, pay attention to controlling the elevation and flatness of the equipment foundation and base.

[0031] Step 4: After the equipment arrives on site, the equipment positioning and installation work will begin. At the same time, the manufacturer will be arranged to transport the modular pipes and fittings to the site in one go. Each module is equipped with assembly drawings and identification numbers to facilitate on-site assembly and installation.

[0032] Step 5: After the modular pipes and fittings arrive on site, all materials are numbered and sorted to ensure they are complete and intact. First, install the pipes and fittings at the equipment inlet and outlet. Then, install them one by one according to the assembly drawings and drawing numbers. Compared to traditional construction methods, this greatly improves installation efficiency and reduces installation costs.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A BIM-based prefabricated fire pump room, characterized in that: It includes an external pump unit and an internal pump unit; the internal pump unit includes at least one fire hydrant pump I (1) and at least one pressure tank I (3); the inlet of the fire hydrant pump I (1) is connected to the water suction pipe (19) of the waterproof pool through the first pipe (101), the outlet of the fire hydrant pump I (1) is connected to the indoor fire hydrant pipe (110) through the second pipe (102), at least one fire hydrant pressure stabilizing pump I (2) is connected to the pressure tank I (3), the inlet of the fire hydrant pressure stabilizing pump I (2) is connected to the water suction pipe (19) of the waterproof pool through the third pipe (103), and the outlet of the fire hydrant pressure stabilizing pump I (2) is connected to the indoor fire hydrant pipe (110) through the fourth pipe (104); The external pump unit includes at least one fire hydrant pump II (21) and at least one pressure tank II (23); the inlet of the fire hydrant pump II (21) is connected to the water suction pipe (19) of the waterproof pool through the fifth pipe (105), and the outlet of the fire hydrant pump II (21) is connected to the outdoor fire hydrant pipe (111) through the sixth pipe (106); at least one fire hydrant pressure stabilizing pump II (22) is connected to the pressure tank II (23), the inlet of the fire hydrant pressure stabilizing pump II (22) is connected to the water suction pipe (19) of the waterproof pool through the seventh pipe (107), and the outlet of the fire hydrant pressure stabilizing pump II (22) is connected to the outdoor fire hydrant pipe (111) through the eighth pipe (108).

2. The prefabricated fire pump room based on BIM according to claim 1, characterized in that: An eccentric reducer (4) is provided at the inlet of the fire hydrant pump I (1), the inlet of the fire hydrant pump II (21), the inlet of the fire hydrant pressure stabilizing pump I (2), and the inlet of the fire hydrant pressure stabilizing pump II (22). A concentric reducer (18) is provided at the outlet of the fire hydrant pump I (1), the outlet of the fire hydrant pump II (21), the outlet of the fire hydrant pressure stabilizing pump I (2), and the outlet of the fire hydrant pressure stabilizing pump II (22).

3. The BIM-based prefabricated fire pump room according to claim 1 or 2, characterized in that: The first pipeline (101), the third pipeline (103), the fifth pipeline (105), and the seventh pipeline (107) are all equipped with filters (6), open stem gate valves (7), and first pressure gauges (9) along the water inlet direction.

4. The prefabricated fire pump room based on BIM according to claim 3, characterized in that: The second pipe (102) and the sixth pipe (106) are each equipped with a second pressure gauge (10), a check valve (11) and a gate valve (5) along the water outlet direction.

5. The BIM-based prefabricated fire pump room according to claim 4, characterized in that: Test pipes (109) are connected to both the second pipe (102) and the sixth pipe (106), and the test pipes (109) are connected between the check valve (11) and the gate valve (5); a flow meter (16) is installed on the test pipes (109).

6. The BIM-based prefabricated fire pump room according to claim 5, characterized in that: Check valves (11) are provided on the fourth pipe (104) and the eighth pipe (108), and drain valves (20) are provided on the second pipe (102), the fourth pipe (104), the sixth pipe (106) and the eighth pipe (108).

7. The BIM-based prefabricated fire pump room according to any one of claims 1, 4 to 6, characterized in that: Both the indoor fire hydrant pipe (110) and the outdoor fire hydrant pipe (111) are connected to a pressure relief pipe (112); the pressure relief pipe (112) is equipped with a safety valve (13), a filter (6), a rising stem gate valve (7) and a first pressure gauge (9).

8. The BIM-based prefabricated fire pump room according to claim 7, characterized in that: Both the indoor fire hydrant pipe (110) and the outdoor fire hydrant pipe (111) are connected to a third pressure gauge (15) and a butterfly valve (12).

9. The BIM-based prefabricated fire pump room according to claim 1 or 8, characterized in that: The water suction pipe (19) of the waterproof pool is equipped with a copper core gate valve (17) and a vortex preventer (8).

10. The BIM-based prefabricated fire pump room according to claim 9, characterized in that: The internal pump unit includes two fire hydrant pumps I (1) and a pressure tank I (3), and two fire hydrant pressure stabilizing pumps I (2) are connected to the pressure tank I (3); the external pump unit includes two fire hydrant pumps II (21) and a pressure tank II (23), and two fire hydrant pressure stabilizing pumps II (22) are connected to the pressure tank II (23).

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