Constant-pressure water replenishing device for fire-fighting transfer pipe of super high-rise building

Abstract

The utility model discloses a super high-rise building fire-fighting transfer pipe constant-pressure water replenishing device which comprises a high-area transfer water tank, a water replenishing pipeline and a fire-fighting transfer main pipeline, the top of the high-area transfer water tank is connected with the outlet end of the fire-fighting transfer main pipeline, and the bottom of the high-area transfer water tank is connected with the fire-fighting transfer main pipeline through a fire-fighting water replenishing pipeline; a low-resistance check valve is mounted on the fire-fighting water replenishing pipeline; leakage of water in a fire-fighting transfer pipeline in a super high-rise building can be avoided, and overload starting of a fire-fighting transfer water pump caused by reduction of water pressure of a fire-fighting transfer pipe network is avoided; the fire-fighting transfer water pump can be started according to rated power under the condition that the pipe network has pressure, so that the fire-fighting transfer water pump can be started smoothly and timely when a fire disaster occurs.

Description

Technical Field

[0001] This utility model belongs to the field of building fire protection technology, and in particular relates to a constant pressure water supply device for fire transmission pipes in super high-rise buildings. Background Technology

[0002] For super high-rise buildings equipped with fire-fighting transfer pump rooms, the fire-fighting transfer water tanks in the refuge floors of the upper floors are typically supplied with water drawn from underground fire-fighting water tanks or lower-level fire-fighting transfer water tanks by transfer pumps in the underground fire-fighting pump room or the fire-fighting transfer pump room in the lower floor. Super high-rise buildings are defined as buildings with a height exceeding 100 meters.

[0003] Under normal operating conditions, the fire transfer pipeline from the fire transfer pump to the high-zone transfer water tank is full of water. However, if the transfer pump is not started for a long time, the amount of water lost from the pipeline network and the leakage of the check valve at the outlet of the transfer pump may be very large in this fire pipeline, which is nearly one or two hundred meters long or longer.

[0004] If the pipeline network experiences long-term leakage and lacks replenishment, the water volume in the fire-fighting transfer network will gradually decrease, potentially leading to empty pipes. During this period, if a fire occurs, the replenishment progress and time of the transfer pumps to the high-zone fire-fighting transfer tanks will be affected, delaying firefighting efforts. Furthermore, due to the reduced pressure within the fire-fighting transfer pipelines, the transfer pumps will operate at low head and high flow rate upon startup. In this situation, the fire pumps will reach their maximum shaft power, causing overload and potentially tripping the pump control cabinet, thus preventing the pumps from starting and directly impacting firefighting efforts.

[0005] Therefore, a constant pressure water supply device for fire transfer pipes in super high-rise buildings is needed to avoid water leakage in fire transfer pipes in super high-rise buildings and to prevent overload start-up of fire transfer pumps due to the reduction of water pressure in the fire transfer network. Summary of the Invention

[0006] The purpose of this utility model is to provide a constant pressure water supply device for fire transfer pipes in super high-rise buildings, so as to avoid water leakage in fire transfer pipes in super high-rise buildings and avoid overload start-up of fire transfer pumps caused by the reduction of water pressure in the fire transfer pipe network; to ensure that the water volume and water level in the transfer pipe network do not decrease, and to enable the fire transfer pumps to start at rated power when there is pressure in the pipe network, thereby ensuring that the fire transfer pumps can be started smoothly and in a timely manner in the event of a fire.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a constant pressure water supply device for fire-fighting transfer pipes in super high-rise buildings, including a high-zone transfer water tank, a water supply pipe, and a fire-fighting transfer main pipe. The top of the high-zone transfer water tank is connected to the outlet end of the fire-fighting transfer main pipe, and the bottom of the high-zone transfer water tank is connected to the fire-fighting transfer main pipe through the fire-fighting water supply pipe. A low-resistance check valve and a shut-off valve are installed on the fire-fighting water supply pipe.

[0009] This utility model discloses a constant pressure water supply device for fire-fighting transfer pipes in super high-rise buildings. The high-zone transfer water tank is used to connect to the high-zone domestic water supply system to obtain continuous low-flow water supply. The fire-fighting water supply pipe is led out from the high-zone transfer water tank and connected to the fire-fighting transfer main pipe. A low-resistance check valve is added to the fire-fighting water supply pipe to ensure that the water volume and water level in the transfer network do not decrease in the event of a fire, so as to start the fire-fighting transfer water pump smoothly and in a timely manner. It also enables the fire-fighting transfer water pump to start at its rated power when there is pressure in the network.

[0010] Preferably, there are at least two fire water supply pipes, and each fire water supply pipe is connected to the main fire transmission pipeline through another fire water supply pipe.

[0011] Preferably, the high-altitude transfer water tank is connected to the high-altitude domestic water supply system via a domestic water supply pipeline.

[0012] Preferably, the domestic water supply pipe is equipped with a valve.

[0013] Preferably, a fire transfer pump is installed at the inlet end of the main fire transfer pipeline.

[0014] Preferably, the bottom of the high-zone transfer water tank is connected to the low-zone pressure stabilizing pipe via a first pipe, and a flow switch is installed on the first pipe.

[0015] Preferably, the high-zone transfer water tank is connected to the high-zone fire pump of the fire hydrant system via a pipeline.

[0016] Preferably, the high-zone fire pump of the fire hydrant system is equipped with a pressure switch and a pressure relief valve.

[0017] Preferably, the high-zone fire pump of the fire hydrant system is connected to the fire hydrants in the floor via a second pipe.

[0018] Preferably, a series pressure reducing valve assembly is installed on the second pipeline.

[0019] Preferably, the high-zone fire pump of the fire hydrant system is equipped with a portable pump connection pipe, and the end of the portable pump connection pipe is equipped with a portable pump connection interface.

[0020] The pressure-regulating water supply device for fire protection transfer pipes in super high-rise buildings provided by this utility model has the following beneficial effects:

[0021] This utility model relates to a constant pressure water supply device for fire-fighting transfer pipes in super high-rise buildings. It can prevent water leakage in fire-fighting transfer pipes in super high-rise buildings and prevent overload starting of fire-fighting transfer pumps due to reduced water pressure in the fire-fighting transfer pipe network. It ensures that the water volume and water level in the transfer pipe network do not decrease, and enables fire-fighting transfer pumps to start at rated power when there is pressure in the pipe network, thereby ensuring that fire-fighting transfer pumps can be started smoothly and promptly in the event of a fire. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a constant pressure water supply device for fire transmission pipes in super high-rise buildings provided in an embodiment of this utility model.

[0023] Figure 2 This is a schematic diagram illustrating the application of a constant pressure water supply device for fire transmission pipes in super high-rise buildings, provided in one embodiment of this utility model.

[0024] Figure reference numerals:

[0025] 1. High-zone transfer water tank; 2. Water supply pipeline; 3. Fire transfer main pipeline; 301. Fire transfer water pump; 4. Low-resistance check valve; 5. Domestic water supply pipeline; 501. Valve; 6. Low-zone pressure stabilizing pipeline; 601. Flow switch; 7. High-zone fire pump for fire hydrant system; 701. Second pipeline; 702. Fire hydrant; 8. Pressure switch; 9. Pressure relief valve; 10. Series pressure reducing valve assembly; 11. Hand-held pump connection interface; 12. Proportional pressure reducing valve assembly; 13. Shut-off valve. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0027] Please refer to the reference. Figures 1 to 2 This embodiment provides a constant pressure water supply device for fire transmission pipelines in super high-rise buildings, including a high-zone transmission water tank 1, a water supply pipeline 2, and a fire transmission main pipeline 3. The top of the high-zone transmission water tank 1 is connected to the outlet end of the fire transmission main pipeline 3, and the bottom of the high-zone transmission water tank 1 is connected to the fire transmission main pipeline 3 through the fire water supply pipeline 2. A low-resistance check valve 4 and a shut-off valve 13 are installed on the fire water supply pipeline 2.

[0028] In this embodiment of the high-rise building fire-fighting transfer pipe constant pressure water supply device, in practical applications, the high-rise transfer water tank 1 can be connected to the high-rise domestic water supply system through the domestic water supply pipe 5, that is, the high-rise transfer water tank 1 has a continuous small flow of water supply to the high-rise domestic water supply system; on this basis, a fire-fighting water supply pipe 2 is led out from the high-rise transfer water tank 1 and connected to the fire-fighting transfer main pipe 3, and a stop valve 13 and a low-resistance check valve 4 are sequentially installed on the fire-fighting water supply pipe 2 from the outlet of the high-rise transfer water tank 1 to the fire-fighting transfer main pipe 3. The high-rise domestic water supply system can adopt existing technology, which can be equipped with a fire-fighting water supply pump 301. In the event of a fire, it can ensure that the water volume and water level in the transfer network do not decrease, and the fire-fighting water supply pump 301 can be started smoothly and in a timely manner, and the fire-fighting water supply pump 7 can be started at its rated power when there is pressure in the network. The fire-fighting water supply pipe 2 can be DN50. The pressure drop of the low-resistance check valve 4 is typically between 0.7 and 5 kPa. It can be made using existing technologies, such as swing check valves, double-disc check valves, and axial flow check valves.

[0029] Specifically, at least two fire water supply pipes 2 can be configured, meaning two fire water supply pipes 2 can be drawn from the high-zone transfer water tank 1, and each fire water supply pipe 2 is connected to the main fire transfer pipe 3 via a separate fire water supply pipe 2. A valve 501 is installed on the domestic water supply pipe 5. A fire transfer pump 301 is installed at the inlet end of the main fire transfer pipe 3. The bottom of the high-zone transfer water tank 1 is connected to the low-zone pressure stabilizing pipe 6 via a first pipe, which is equipped with a flow switch 601. The flow switch 601 facilitates alarm activation and automatic start of the fire pump. A proportional pressure reducing valve assembly 12 is installed on the low-zone pressure stabilizing pipe 6. The high-zone transfer water tank 1 is connected to the high-zone fire pump 7 of the fire hydrant system via a pipe. The high-zone fire pump of the fire hydrant system is equipped with a pressure switch 8 and a pressure relief valve 9. The high-zone fire pump 7 of the fire hydrant system is connected to the fire hydrants 702 in the building via a second pipe 701. A series pressure reducing valve assembly 10 is installed on the second pipe. The high-zone fire pump 7 of the fire hydrant system is equipped with a portable pump connection pipe, and a portable pump connection interface 11 is provided at the end of the portable pump connection pipe for firefighters to connect the portable pump.

[0030] The high-zone transfer water tank 1 is installed in a refuge floor. The fire transfer pump 301 is generally installed in an underground fire pump room or a fire transfer pump room in the lower zone, and it draws water from an underground fire water tank or a lower-zone fire transfer water tank. The high-zone transfer water tank 1 can be installed in a refuge floor in a high zone, for example, on the 22nd floor. The fire transfer pump 301 can be installed in a refuge floor in a low zone, for example, on the 11th floor.

[0031] The above embodiments are merely illustrative examples and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to has a specific orientation, or is constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A constant pressure water supply device for fire protection transfer pipes in super high-rise buildings, characterized in that, It includes a high-zone transfer water tank, a fire-fighting water supply pipeline, and a fire-fighting water supply main pipeline. The top of the high-zone transfer water tank is connected to the outlet end of the fire-fighting water supply main pipeline, and the bottom of the high-zone transfer water tank is connected to the fire-fighting water supply main pipeline through the fire-fighting water supply pipeline. A low-resistance check valve and a shut-off valve are installed on the fire-fighting water supply pipeline.

2. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 1, characterized in that, The fire water supply pipeline is configured to have at least two pipes, and each fire water supply pipeline is connected to the main fire transmission pipeline through a fire water supply pipeline.

3. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 1, characterized in that, The high-altitude water transfer tank is connected to the high-altitude domestic water supply system via a domestic water supply pipeline.

4. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 3, characterized in that, The domestic water supply pipeline is equipped with valves.

5. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 1, characterized in that, A fire transfer water pump is installed at the inlet end of the main fire transfer pipeline.

6. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 1, characterized in that, The bottom of the high-zone transfer water tank is connected to the low-zone pressure stabilizing pipe via a first pipe, and a flow switch is installed on the first pipe.

7. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 1, characterized in that, The high-zone transfer water tank is connected to the high-zone fire pump of the fire hydrant system via a pipeline.

8. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 7, characterized in that, The high-zone fire pump of the fire hydrant system is equipped with a pressure switch and a pressure relief valve. The high-zone fire pump of the fire hydrant system is connected to the fire hydrants in the floor through a second pipe.

9. The constant pressure water supply device for fire protection transfer pipes in super high-rise buildings according to claim 8, characterized in that, A series pressure reducing valve assembly is installed on the second pipeline.

10. The pressure-regulating water supply device for fire protection transfer pipes in super high-rise buildings according to claim 7, characterized in that, The fire hydrant system's high-zone fire pump is equipped with a portable pump connection pipe, and the end of the portable pump connection pipe is equipped with a portable pump connection interface.

Images