Fire-fighting emergency water delivery pipeline system for super high-rise building

Abstract

The invention discloses a fire-fighting emergency water delivery pipeline system for a super high-rise building. The fire-fighting emergency water conveying pipeline system is installed in a fire elevator room front room or a staircase in a super high-rise building and comprises a vertical water conveying vertical pipe, and an outdoor fire-fighting connector is arranged at the bottom end of the water conveying vertical pipe on the first floor. An indoor fire-fighting interface is reserved on the water delivery vertical pipe of the floor exceeding the water supply height of the fire-fighting truck; a quick exhaust valve is arranged at the top of the water delivery vertical pipe; a fire pool is arranged at the bottom of the super high-rise building, transfer fire water tanks are arranged in part of floors, a roof fire water tank is arranged on the roof, each fire hydrant subarea exceeding the water supply height of the fire fighting truck is provided with a fire water pump adapter, and a reserved indoor fire coupling is close to the fire water pump adapter. According to the fire-fighting emergency water conveying pipeline system for the super high-rise building, the pipeline structure is optimized, the operation process is simplified, the water conveying efficiency and reliability are improved, and the burden of fire rescue workers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of fire protection, and in particular to a fire emergency water supply pipeline system for a super high-rise building. Background Art

[0002] According to the Technical Specifications for Fire Water Supply and Fire Hydrant Systems GB 50184-2014, for high-rise buildings or super-high-rise buildings, the fire water supply system shall be vertically zoned, and a fire pump connector shall be installed in each zone within the water supply pressure range of the fire truck. When the building height exceeds the water supply height of the fire truck, the fire truck is required to adopt relay water supply through the fire pump connector, and water suction and pressure interfaces of the hand pump shall be installed on each floor.

[0003] In normal design, it is generally considered that buildings with a height greater than 120 meters use fire pumps in series to supply water in different areas. Among them, areas below 120 meters use fire pump couplers to directly supply water, and areas above 120 meters use fire pump couplers to relay water supply.

[0004] However, there are some problems in the actual fire rescue in the way of relaying water supply of fire pump couplers: taking the JBQ4.6 / 7.2 hand-lift mobile fire pump group equipped by my country's fire brigade as an example, the flow rate of the hand-lift mobile fire pump group is about 10l / s and the lift is 50 meters. The flow rate can only meet the flow rate of two water guns and the lift is low. Among them, if it is used for direct firefighting, theoretically, the water column at the floor 20 meters above the hand-lift pump position cannot meet the design requirements; if it is used for relay water supply, considering the distance between the refuge floors is about 50 meters, each The refuge floor must be equipped with a hand-lifted mobile fire pump unit interface and a fire pump coupler. During firefighting and rescue operations, multiple hand-lifted mobile fire pump units must be connected in series before water can be supplied to the indoor firefighting system. Furthermore, during use, it is difficult for the hand-lifted mobile fire pump to meet the 50-meter water delivery height. Furthermore, using multiple hand-lifted pumps in series will reduce the reliability of the water supply. Furthermore, a single hand-lifted mobile fire pump unit weighs approximately 50 kilograms, not including accessories such as inlet and outlet pipes, water guns, oil, and gasoline, which also poses significant difficulties for firefighting and rescue personnel. Therefore, if a fire breaks out on a floor higher than the water supply height of conventional fire trucks, it will be very difficult to supply water to the indoor firefighting system via the relay water supply method of the fire pump coupler. Summary of the Invention

[0005] To solve the above problems, the present invention provides a super high-rise building fire emergency water supply pipeline system, which is added in the fire elevator vestibule. It is not filled with water and does not bear pressure at ordinary times. Routine drills, inspections, and debugging of valve interfaces do not affect the indoor fire protection system at all. During fire rescue, it can reduce the burden on firefighters, shorten the water supply time to the indoor fire protection system, and enhance the reliability of fire water supply. In addition, it is not only suitable for newly built super high-rise buildings, but it is also relatively convenient to add this system to existing super high-rise buildings.

[0006] According to one aspect of the present invention, a fire emergency water supply pipeline system for a super high-rise building is provided, which is installed in the vestibule or stairwell of a fire elevator room inside the super high-rise building. The fire emergency water supply pipeline system includes a vertical water supply riser, and the bottom end of the water supply riser on the first floor is provided with an outdoor fire interface, and the water supply riser on the floors exceeding the water supply height of the fire truck is reserved with an indoor fire interface, and the top of the water supply riser is provided with a quick exhaust valve; a fire water pool is provided at the bottom of the super high-rise building, transfer fire water tanks are provided on some floors, and a rooftop fire water tank is provided on the roof, and each fire hydrant partition exceeding the water supply height of the fire truck is provided with a fire pump connector, and the reserved indoor fire interface is close to the fire pump connector.

[0007] In some embodiments, a water hammer arrester is provided on the water delivery riser on the first floor. The benefit of the water hammer arrester is that it can be used to eliminate the impact of water hammer on fire trucks during water delivery.

[0008] In some embodiments, an adjustable pressure reducing valve is provided on the indoor firefighting interface. This is advantageous in that the adjustable pressure reducing valve can adjust the pressure at the interface of the firefighting emergency water supply pipeline system to match the design pressure of the original firefighting facilities at that location, facilitating system connection.

[0009] In some embodiments, the quick exhaust valve is provided with an electric valve, and a start button for the electric valve is provided on each floor. This is advantageous in that, when emergency water delivery is required, the quick exhaust valve can be opened on each floor to exhaust the system.

[0010] In some embodiments, a check valve is provided inside the water delivery riser and / or on the pipe connected to the indoor firefighting interface. This is advantageous in that the check valve can be used to prevent the indoor firefighting water from flowing back when the indoor firefighting system pressure exceeds the fire truck pressure.

[0011] In some embodiments, the water delivery riser is made of seamless steel pipe and connected by flanges. The diameter of the water delivery riser is DN100 and the pressure resistance is not greater than 4.0 MPa. The benefit is that the material and relevant parameter specifications of the water delivery riser are described.

[0012] In some embodiments, a fire hand pump interface is provided near each fire pump adapter. The benefit thereof is that the fire hand pump interface is provided and can be used to connect a hand pump as needed.

[0013] In some embodiments, a decompression water tank is installed in some high floors of the super high-rise building. The benefit is that the installation of the decompression water tank can make the system suitable for the fire water supply needs of higher floors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a super high-rise building fire emergency water supply pipeline system installed on a super high-rise building according to one embodiment of the present invention;

[0015] Figure 2 for Figure 1 The structural diagram of the fire emergency water supply pipeline system shown in FIG.

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

[0017] In the figure: fire emergency water supply pipeline system 10, water supply riser 11, outdoor fire interface 12, indoor fire interface 13, quick exhaust valve 14, water hammer arrester 15, adjustable pressure reducing valve 16, electric valve 17, super high-rise building 20, fire water pool 21, transfer fire water tank 22, roof fire water tank 23, fire water pump connector 24, fire hand pump interface 25, pressure reducing water tank 26. DETAILED DESCRIPTION

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

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

[0020] The water delivery riser 11 is made of seamless steel pipe, connected by flanges, with a pressure bearing capacity of no more than 4.0 MPa, and a pipe diameter of DN100.

[0021] At the bottom of the water delivery riser 11 on the first floor, there is an outdoor fire interface 12 for connecting the fire hose of the fire truck. At the bottom of the super high-rise building 20, there is a fire pool 21, and the fire pool 21 is connected to a plurality of fire pump connectors 24.

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

[0023] Indoor fire connections 13 are installed on water supply risers 11 on floors above the fire truck water supply height. Transfer fire water tanks 22 are installed on at least some floors of the super-high-rise building 20. At the same time, each fire hydrant zone above the fire truck water supply height is equipped with a fire pump connector 24, and a reserved indoor fire connection 13 is located near the fire pump connector 24. The reserved indoor fire connection 13 is located near the fire pump connector 24.

[0024] A quick exhaust valve 14 is provided at the top of the water supply riser 11, and an electric valve 17 is also provided on the quick exhaust valve 14. A start button of the electric valve 17 is provided on each floor (not shown in the figure). The quick exhaust valve 14 can be opened on each floor to quickly reach the design flow rate of emergency water supply.

[0025] Further preferably, a check valve is installed inside the water supply riser 11 and / or on the pipe connected to the indoor firefighting interface 13 (neither of which is shown in the figure). The size of the check valve installed inside the water supply riser 11 is consistent with the diameter of the water supply riser 11. Each check valve can be used to prevent the indoor firefighting water from flowing back when the pressure of the indoor firefighting system exceeds the pressure of the fire truck.

[0026] In addition, a rooftop fire water tank 23 is provided on the roof of the super high-rise building 20. Preferably, a pressure reducing water tank 26 can be provided on some floors of the super high-rise building 20, so that the fire emergency water pipe 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 system's outdoor fire interface 12, connect the fire hose, and the fire rescue personnel reach the floor where the fire is located through the fire elevator, stairs, and fire climbing vehicle, connect the system's indoor fire interface 13 and the fire pump connector 24 on that floor, start the button to open the quick exhaust valve 14, and notify the high and medium pressure fire trucks to supply water, so as to realize water supply to the indoor fire system. The fire hose can also be directly connected through the water distributor for direct use in fire fighting.

[0028] During routine joint drills, fire rescue departments connect high- and medium-pressure fire trucks to the system. At indoor firefighting interface 13, pressure gauges before and after the pressure reducing valve are used to test the system's water supply pressure, while a flow meter is connected to test the system's water supply flow rate. After the test is complete, the high-, medium-, and low-pressure fire trucks are notified to stop their pumps and drain any accumulated water from the pipes.

[0029] In this embodiment, the high-pressure fire truck has a rated flow rate of 4-10 l / s and a rated pressure of 3.5-4.0 MPa; the medium-pressure fire truck has a rated flow rate of 10-80 l / s and a rated pressure of 1.8-3.0 MPa. Considering the compatibility of both high and medium pressures, testing has shown 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. At a flow rate of 40 l / s and a flow velocity of 4.619 m / s, the unit water loss is 0.318, sufficient for six fire hoses or an automatic sprinkler system.

[0030] When the system is not connected to a high- or medium-pressure fire truck, the empty water supply riser 11 is not under pressure. Therefore, it is advisable to not install check valves on the water supply risers 11 on each upper floor. This prevents valve corrosion caused by long-term disuse or improper maintenance, which could affect firefighting. However, check valves are generally still required on the water supply risers 11 on the first floor to prevent water hammer from damaging the fire truck's water pump when the pump is stopped.

[0031] Furthermore, the system consists of a limited number of components and is relatively simple and easy to install, making it suitable not only for new super-high-rise buildings but also for existing ones. Furthermore, because the system is self-contained, its installation will not affect the existing fire protection system of the super-high-rise building.

[0032] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A fire emergency water supply pipeline system for a super high-rise building, wherein the fire emergency water supply pipeline system (10) is installed in the front room or stairwell of a fire elevator room inside a super high-rise building (20), and is characterized by: The fire emergency water supply pipeline system (10) includes a vertical water supply riser (11), an outdoor fire interface (12) is provided at the bottom end of the water supply riser (11) on the first floor, an indoor fire interface (13) is reserved on the water supply riser (11) on the floors exceeding the water supply height of the fire truck, and a quick exhaust valve (14) is provided on the top of the water supply riser (11); a fire water pool (21) is provided at the bottom of the super high-rise building (20), a transfer fire water tank (22) is provided on some floors, a roof fire water tank (23) is provided on the roof, and each fire hydrant partition exceeding the water supply height of the fire truck is provided with a fire pump connector (24), and the reserved indoor fire interface (13) is close to the fire pump connector (24).

2. The super high-rise building fire emergency water supply pipeline system according to claim 1, characterized in that: A water hammer arrester (15) is provided on the water delivery riser (11) of one layer.

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

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

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

6. The super high-rise building fire emergency water supply pipeline system according to claim 1, characterized in that: The water delivery riser (11) is made of a seamless steel pipe and is connected using flanges. The diameter of the water delivery riser (11) is DN100 and the pressure bearing capacity is not greater than 4.0 MPa.

7. The super high-rise building fire emergency water supply pipeline system according to claim 1, characterized in that: A fire-fighting hand-lift pump interface (25) is provided near each fire-fighting water pump adapter (24).

8. The super high-rise building fire emergency water supply pipeline system according to any one of claim 1, characterized in that: Decompression water tanks (26) are provided on some floors of the super high-rise building (20).

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