A fire emergency water supply pipeline system for super high-rise buildings

Abstract

This utility model discloses a fire emergency water supply pipeline system for super high-rise buildings. The fire emergency water supply pipeline system is installed in the fire elevator lobby or stairwell inside the super high-rise building. The system includes a vertical water supply riser. An outdoor fire hydrant interface is provided at the bottom of the riser on the first floor. Indoor fire hydrant interfaces are reserved on the risers on floors exceeding the fire truck water supply height. A quick-release valve is installed at the top of the riser. A fire water tank is located at the base of the super high-rise building, fire water transfer tanks are installed on some floors, and a rooftop fire water tank is installed on the roof. Each fire hydrant zone exceeding the fire truck water supply height is equipped with a fire pump connection, and the reserved indoor fire hydrant interfaces are located near the fire pump connections. This utility model's fire emergency water supply pipeline system for super high-rise buildings improves water supply efficiency and reliability and reduces the burden on fire and rescue personnel by optimizing the pipeline structure and simplifying the operation process.

Description

Technical Field

[0001] This utility model relates to the field of fire protection, and in particular to a fire emergency water supply pipeline system for super high-rise buildings. Background Technology

[0002] According to the "Technical Specification for Fire Water Supply and Fire Hydrant System" GB 50184-2014, for high-rise or super high-rise buildings, the fire water supply system shall be vertically zoned, and each zone within the fire truck water supply pressure range shall be equipped with a fire pump connection. When the building height exceeds the fire truck water supply height, the fire truck shall be required to supply water in relay through the fire pump connection, and a hand-held pump suction and pressurization interface shall be provided on each floor.

[0003] In typical designs, buildings with a height greater than 120 meters are generally designed to use fire pumps connected in series for zoned water supply. Zones below 120 meters are supplied directly by fire pump connections, while zones above 120 meters are supplied in relays by fire pump connections.

[0004] However, the relay water supply method using fire pump connections presents some problems in actual fire rescue operations. Taking the JBQ4.6 / 7.2 type portable motorized fire pump set equipped by Chinese fire brigades as an example, its flow rate is approximately 10 L / s, and its head is 50 meters. This flow rate is only sufficient for two water hoses, and the head is too low. Specifically, if used for direct firefighting, theoretically, a solid water column from a floor 20 meters above the portable pump location would not meet design requirements. If used for relay water supply, considering the approximately 50-meter distance between refuge floors, each... Refuge floors must be equipped with portable motorized fire pump sets and fire pump connections. During fire rescue operations, multiple portable motorized fire pump sets need to be connected in series to supply water to the indoor fire protection system. Furthermore, it is difficult for portable motorized fire pumps to meet the 50-meter water delivery height requirement during use. Connecting multiple portable pumps in series also reduces the reliability of the water supply. In addition, a single portable motorized fire pump set weighs approximately 50 kilograms, not including inlet and outlet pipes, water nozzles, oil, gasoline, and other accessories, which also poses significant challenges for firefighters. Therefore, if a fire occurs on a floor higher than the standard fire truck's water supply height, supplying water to the indoor fire protection system via fire pump connections will be extremely difficult. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a fire emergency water supply pipeline system for super high-rise buildings. This system is installed in the fire elevator lobby, and is normally neither filled with water nor pressurized. During routine drills, inspections, and adjustments to the valve interfaces, it does not affect the indoor fire protection system. During fire rescue operations, it reduces the workload of firefighters, shortens the time required to supply water to the indoor fire protection system, and enhances the reliability of fire water supply. Furthermore, it is not only suitable for newly constructed super high-rise buildings, but also convenient for installation in existing super high-rise buildings.

[0006] According to one aspect of this utility model, a fire emergency water supply pipeline system for super high-rise buildings is provided. This system is installed in the fire elevator lobby or stairwell inside the super high-rise building. The fire emergency water supply pipeline system includes a vertical water supply riser. An outdoor fire-fighting interface is provided at the bottom of the riser on the first floor. Indoor fire-fighting interfaces are reserved on the risers on floors exceeding the fire truck water supply height. A quick-release valve is provided at the top of the riser. A fire water tank is provided at the bottom of the super high-rise building, fire water transfer tanks are provided on some floors, and a rooftop fire water tank is provided on the roof. Each fire hydrant zone exceeding the fire truck water supply height is equipped with a fire pump connection, and the reserved indoor fire-fighting interfaces are located near the fire pump connections.

[0007] In some implementations, a water hammer eliminator is installed on the water supply riser on the first floor. The advantage of this is that the water hammer eliminator can be used to eliminate the impact of water hammer on fire trucks during water supply.

[0008] In some embodiments, an adjustable pressure reducing valve is installed on the indoor fire-fighting interface. The advantage of this is that the adjustable pressure reducing valve allows for the regulation of the pressure at this interface of the fire emergency water supply pipeline system, matching the design pressure of the existing fire-fighting facilities at that location, thus facilitating system connection.

[0009] In some embodiments, the quick-release valve is equipped with an electric valve, and an activation button for the electric valve is provided on each floor. The advantage is that, during emergency water supply, the quick-release valve can be opened on each floor to vent the system.

[0010] In some embodiments, a check valve is installed inside the water supply riser and / or on the pipe connected to the indoor fire protection interface. The advantage of this is that the check valve can prevent backflow of indoor fire protection water when the pressure in the indoor fire protection system is higher than the pressure in the fire truck.

[0011] In some embodiments, the water riser is made of seamless steel pipe and connected by flanges. The riser has a diameter of DN100 and a pressure rating not exceeding 4.0 MPa. The advantage is that the material and relevant specifications of the water riser are described.

[0012] In some implementations, a portable fire pump interface is provided near each fire pump connection. The advantage of this is that the portable fire pump interface can be used to connect a portable pump as needed.

[0013] In some implementations, pressure-reducing water tanks are installed in certain upper floors of the high-rise building. The advantage of this is that the installation of pressure-reducing water tanks allows the system to be adapted to the fire-fighting water supply needs of higher floors. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a fire emergency water supply pipeline system for a super high-rise building, as one embodiment of the present invention, when installed on a super high-rise building.

[0015] Figure 2 for Figure 1 The diagram shows the structural schematic of the fire emergency water supply pipeline system.

[0016] Figure 3 for Figure 1 The diagram shows the structure of the high-rise building.

[0017] In the diagram: 10 Fire emergency water supply pipeline system, 11 Water supply riser, 12 Outdoor fire connection, 13 Indoor fire connection, 14 Quick air vent valve, 15 Water hammer eliminator, 16 Adjustable pressure reducing valve, 17 Electric valve, 20 High-rise building, 21 Fire water tank, 22 Transfer fire water tank, 23 Roof fire water tank, 24 Fire pump connection, 25 Hand-held fire pump connection, 26 Pressure reducing water tank. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown, the fire emergency water supply pipeline system 10 of this utility model is installed in the fire elevator lobby or stairwell inside the super high-rise building 20, and the super high-rise building 20 is equipped with multiple interconnected water pools and water tanks. Among them, the fire emergency water supply pipeline system 10 includes a vertically installed water supply riser 11, the top of which extends to the top floor of the super high-rise building 20.

[0020] Water supply riser 11 is made of seamless steel pipe, connected by flanges, with a pressure not exceeding 4.0 MPa and a pipe diameter of DN100.

[0021] An outdoor fire hose connection 12 is installed at the bottom of the water supply riser 11 on the first floor, which can be used to connect the fire hose of the fire truck. At the bottom of the super high-rise building 20, a fire water tank 21 is installed, and the fire water tank 21 is connected to multiple fire pump connections 24.

[0022] Preferably, a water hammer eliminator 15 is also provided on the water supply riser 11 of the first layer, which can be used to eliminate the impact of water hammer on the fire truck during water supply.

[0023] Indoor fire-fighting interfaces 13 are installed on the water supply risers 11 in floors exceeding the height of fire truck water supply. At least a portion of the floors in the high-rise building 20 are equipped with fire-fighting water transfer tanks 22. Furthermore, each fire hydrant zone exceeding the height of fire truck water supply is equipped with a fire pump connection 24, and the reserved indoor fire-fighting interfaces 13 are located near these fire pump connections 24.

[0024] A quick air vent valve 14 is installed at the top of the water supply riser 11, and an electric valve 17 is also installed on the quick air vent valve 14. An start button for the electric valve 17 is installed on each floor (not shown in the figure), so that the quick air vent valve 14 can be opened on each floor, so that the emergency water supply can quickly reach the design flow rate.

[0025] Further preferably, check valves are installed inside the water supply riser 11 and / or on the pipe connecting to the indoor fire protection interface 13 (not shown in the figure). The size of the check valve installed inside the water supply riser 11 is the same as the pipe diameter of the water supply riser 11, and each check valve can be used to prevent backflow of indoor fire protection water when the pressure of the indoor fire protection system is higher than the pressure of the fire truck.

[0026] In addition, a rooftop fire water tank 23 is installed on the roof of the high-rise building 20. Preferably, pressure-reducing water tanks 26 can also be installed on some floors of the high-rise building 20, so that the fire emergency water supply pipeline system 10 can be adapted to the fire water supply needs of higher floors.

[0027] When using the fire emergency water supply pipeline system 10 for fire rescue, first park the high and medium pressure fire trucks near the outdoor fire interface 12 of the system, connect the fire hoses, and fire rescue personnel reach the floor where the fire is located via fire elevators, stairs, and fire ladder trucks. Connect the indoor fire interface 13 of the system to the fire pump connection 24 of the floor, open the quick exhaust valve 14 by pressing the start button, and notify the high and medium pressure fire trucks to supply water. This will enable water supply to the indoor fire protection system, or the fire hose can be directly connected to the water distributor for fire fighting.

[0028] During routine joint drills by fire and rescue departments, high- and medium-pressure fire trucks are connected to this system. The system's water pressure can be tested using pressure gauges before and after the pressure reducing valve at indoor fire interface 13, and the system's water flow rate can be tested by connecting a flow meter. After testing, the high, medium, and low-pressure fire trucks are instructed to stop their pumps and drain the water from the pipes.

[0029] In this embodiment, the rated flow rate of the high-pressure fire truck is set at 4-10 L / s, and the rated pressure at 3.5-4.0 MPa; the rated flow rate of the medium-pressure fire truck is set at 10-80 L / s, and the rated pressure at 1.8-3.0 MPa. Considering that both high-pressure and medium-pressure applications are feasible, tests showed that at a flow rate of 30 L / s and a flow velocity of 3.465 m / s, the unit water loss is 0.196, and at a flow rate of 40 L / s and a flow velocity of 4.619 m / s, the unit water loss is 0.318, which is sufficient for the use of six fire hoses or an automatic sprinkler system.

[0030] When the system is not connected to high- or medium-pressure fire trucks, the empty water riser 11 is not pressurized. Therefore, it is advisable not to install check valves on the water risers 11 in each high-rise building to avoid valve corrosion caused by long-term disuse or improper maintenance, which could affect fire fighting. However, check valves are generally still required on the water risers 11 on the first floor to prevent water hammer generated when the pump stops from damaging the fire truck's water pump.

[0031] Furthermore, the system comprises few components and is relatively simple and convenient to install, making it suitable not only for newly constructed high-rise buildings but also for easy installation on existing ones. Because the system is independently installed, its installation will not affect the existing fire protection system of the high-rise building.

[0032] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A fire emergency water supply pipeline system for super high-rise buildings, wherein the fire emergency water supply pipeline system (10) is installed in the fire elevator lobby or stairwell inside the super high-rise building (20), characterized in that: The fire emergency water supply pipeline system (10) includes a vertical water supply riser (11). The bottom end of the water supply riser (11) on the first floor is provided with an outdoor fire interface (12). The water supply risers (11) on floors exceeding the water supply height of the fire truck are all reserved with indoor fire interfaces (13). The top of the water supply riser (11) is provided with a quick exhaust valve (14). The bottom of the super high-rise building (20) is provided with a fire water tank (21). Some floors are provided with a transfer fire water tank (22). The roof is provided with a roof fire water tank (23). Each fire hydrant zone exceeding the water supply height of the fire truck is provided with a fire pump connection (24). The reserved indoor fire interface (13) is close to the fire pump connection (24).

2. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: A water hammer eliminator (15) is installed on the water supply riser (11) of the first floor.

3. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: An adjustable pressure reducing valve (16) is installed on the indoor fire interface (13).

4. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: The quick exhaust valve (14) is equipped with an electric valve (17), and the start button of the electric valve (17) is provided on each floor.

5. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: A check valve is installed inside the water supply riser (11) and / or on the pipe connected to the indoor fire interface (13).

6. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: The water supply riser (11) is made of seamless steel pipe and connected by flanges. The diameter of the water supply riser (11) is DN100 and the pressure is not greater than 4.0Mpa.

7. The fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: A fire pump port (25) is provided near each fire pump connection (24).

8. A fire emergency water supply pipeline system for super high-rise buildings according to claim 1, characterized in that: Pressure-reducing water tanks (26) are installed on some floors of the super high-rise building (20).

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