Subway station and section fire hydrant system based on high-position fire pool

Abstract

The utility model provides a subway station and interval fire hydrant system based on a high-position fire-fighting pool, which relates to the technical field of subway fire fighting and comprises a fire-fighting pool, a station fire hydrant water supply main pipe and an interval fire hydrant water supply main pipe, the station fire hydrant water supply main pipe and the interval fire hydrant water supply main pipe are both connected with a fire pool, and pressure reducing valves and pressure detectors are arranged on the station fire hydrant water supply main pipe and the interval fire hydrant water supply main pipe. And the station fire hydrant water supply main pipe and the interval fire hydrant water supply main pipe are respectively connected to fire hydrant system fire-fighting pipe networks of the station and the interval tunnel. The subway fire hydrant system has the beneficial effects that the fire hydrant system adopts the fire pool arranged at a high position as a fire-fighting reserve water source, water can be supplied in a centralized manner, and a pump room in a traditional station is omitted, so that the construction cost of subway fire-fighting equipment is remarkably reduced. And the fire pool directly supplies water to the fire hydrant pipe network through gravity without depending on an electric water pump, so that the reliability of the fire hydrant system can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to subway fire fighting technical field especially a subway station and interval fire hydrant system based on high fire water pool. BACKGROUND

[0002] Traditional subway station and interval fire hydrant system usually set up fire water pool and fire pump house in each station equipment area, configure fire hydrant pump in pump house, and be responsible for fire water supply of station and adjacent interval. Traditional system needs to set up fire water pool and pump house separately in each station, leads to huge civil engineering scale, repeated equipment investment, and occupies station equipment area space by fire pump house, influences overall layout of station. At the same time, traditional system relies on continuous operation of fire hydrant pump, once water pump fails or power supply is interrupted, fire water supply can be interrupted, and there is security risk. Subway line is long, and station is many, when water supply pipe network is laid along line, terminal station or interval can cause water pressure shortage due to too far distance, and cannot satisfy fire hydrant water pressure specification requirement. These problems influence reliability and safety of subway fire fighting system, and there is certain security risk under fire condition. SUMMARY

[0003] Therefore, the utility model provides a subway station and interval fire hydrant system based on high fire water pool, including fire water pool, station fire hydrant water supply main pipe and interval fire hydrant water supply main pipe;

[0004] Fire water pool is located on water tower or high building, is equipped with first water supply joint group and second water supply joint group on fire water pool, first water supply joint group includes two first water supply joints, second water supply joint group includes two second water supply joints, station fire hydrant water supply main pipe is connected with fire hydrant fire fighting pipe network in station, and station fire hydrant water supply main pipe is connected first water supply joint group, interval fire hydrant water supply main pipe is connected with fire hydrant fire fighting pipe network in subway interval tunnel, and interval fire hydrant water supply main pipe is connected second water supply joint group, and is equipped with pressure reducing valve and pressure detector on station fire hydrant water supply main pipe and interval fire hydrant water supply main pipe, and pressure reducing valve and pressure detector are connected with fire control center, and fire control center is used to adjust the opening of pressure reducing valve according to the pressure data provided by pressure detector.

[0005] Further, the first water supply joint and the second water supply joint are connected with a cyclone preventer.

[0006] Further, the fire water pool is a water tank, and the fire water pool is connected with a water tank breather pipe.

[0007] Further, the fire water pool is provided with a water inlet pipe, and the water inlet pipe is connected with a municipal pipe network.

[0008] Further, the bottom of the fire-fighting pool is further provided with a vent pipe.

[0009] Further, the fire-fighting pool is further provided with an overflow pipe, and the pipe mouths of the overflow pipe, the vent pipe and the water tank vent pipe are provided with insect screen covers.

[0010] Further, the fire-fighting pool is provided with a liquid level meter, and the liquid level meter is integrated with a liquid level signal module; the liquid level meter is used to acquire water level height information of the fire-fighting pool, and the liquid level signal module is used to transmit the water level height information to a fire-fighting control center.

[0011] Further, the water inlet pipe is further provided with a water inlet valve.

[0012] Further, the fire-fighting pool is fixedly provided with a hydraulic water level control valve, and the hydraulic water level control valve is connected with the water inlet pipe.

[0013] Further, the top side wall of the fire-fighting pool is provided with a ladder, and the top of the fire-fighting pool is provided with a manhole with a lock.

[0014] The subway station and interval fire hydrant system based on the high-position fire-fighting pool have the following beneficial effects:

[0015] (1) The fire hydrant system uses a fire-fighting pool with a high position and a height higher than the subway station as a fire-fighting reserve water source, which can supply water to the fire hydrants in the subway station and the interval tunnel, thereby eliminating the traditional pump room in the station, reducing the subway construction civil engineering quantity, and significantly reducing the construction cost of the subway fire-fighting setting. Moreover, the fire-fighting pool directly supplies water to the fire hydrant pipe network through gravity, does not rely on an electric water pump, and can still continuously supply water when power is off or equipment fails, thereby significantly improving the system reliability.

[0016] (2) The station fire hydrant supply main pipe and the interval fire hydrant supply main pipe of the fire hydrant system are both provided with pressure reducing valves and pressure detectors, the fire-fighting pool is provided with a liquid level meter, and the fire-fighting control center can control the water pressure in the station fire hydrant supply main pipe and the interval fire hydrant supply main pipe in real time, realize remote monitoring of the water level and pressure data, support automatic water replenishment and pressure regulation, and greatly shorten the water pressure control response time of the fire hydrant system.

[0017] (3) The station fire hydrant supply main pipe and the interval fire hydrant supply main pipe of the fire hydrant system both have two interfaces with the fire-fighting pool, and the water supply connectors are in a parallel relationship; when a certain section of the water supply side pipeline is blocked, leaks or needs to be repaired, water flow can still be supplied through the other side path through the opening and closing of the valve, so as to avoid water supply interruption and ensure continuous supply of fire-fighting water. The fire hydrant system has higher tolerance to single-point faults, and is particularly suitable for places with extremely high requirements for fire safety. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a whole structure schematic diagram of a subway station and interval fire hydrant system based on a high-position fire pool.

[0019] Fig. 2 is a structure schematic diagram of a fire pool of a subway station and interval fire hydrant system based on a high-position fire pool.

[0020] In the above figure: 1-fire pool, 11-water supply joint, 12-vent pipe, 13-overflow pipe, 14-water tank vent pipe, 15-crawling ladder, 16-manhole with lock, 17-swirl preventer, 2-inlet pipe, 21-inlet valve, 22-hydraulic water level control valve, 3-station fire hydrant water supply main pipe, 4-interval fire hydrant water supply main pipe, 5-pressure reducing valve, 6-pressure detector, 7-liquid level meter. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model embodiment will be further described below with reference to the drawings.

[0022] Please refer to Figs. 1-2 The utility model discloses a subway station and interval fire hydrant system based on a high-position fire pool, which comprises a fire pool 1, a station fire hydrant water supply main pipe 3 and an interval fire hydrant water supply main pipe 4. The fire pool 1 is a high-position fire pool. Specifically, the fire pool 1 is arranged on the roof of a high-rise building around a line or a water tower constructed separately. The height of the fire pool 1 is higher than that of a subway station and an interval tunnel. The volume of the fire pool is determined according to the water consumption of the station and the interval.

[0023] A plurality of water supply joints 11 are arranged on the fire pool 1. The plurality of water supply joints 11 are divided into a first water supply joint group and a second water supply joint group.

[0024] The first water supply joint group is connected to the station fire hydrant water supply main pipe 3, and the second water supply joint group is connected to the interval fire hydrant water supply main pipe 4. The first water supply joint group and the second water supply joint group can be arranged as one group or multiple groups. Each first water supply joint group comprises two first water supply joints, and each second water supply joint group comprises two second water supply joints.

[0025] The station fire hydrant water supply main pipe 3 is connected to a fire hydrant fire-fighting pipe network in a subway station. The station fire hydrant water supply main pipe 3 is connected to the two first water supply joints of the first water supply joint group.

[0026] The interval fire hydrant water supply main pipe 4 is connected with the fire hydrant fire-fighting pipe network in the subway interval tunnel, and the interval fire hydrant water supply main pipe 4 is connected to two second water supply joints of the second water supply joint group; in this way, the station fire hydrant water supply main pipe 3 and the interval fire hydrant water supply main pipe 4 can both form a ring-shaped water supply network pipe. Each water supply joint group (the first water supply joint group and the second water supply joint group) adopts a one-for-one backup form, which is switched by opening and closing of the valve arranged on the fire hydrant water supply main pipe.

[0027] It can be understood that the station fire hydrant water supply main pipe 3 and the interval fire hydrant water supply main pipe 4 can both be arranged as one or more, and the station fire hydrant water supply main pipe 3 and the interval fire hydrant water supply main pipe 4 are both provided with a pressure reducer 5 and a pressure detector 6, which are both connected with the fire control center, wherein the pressure reducer 5 is a remotely controllable electromagnetic pressure reducer, and the fire control center adjusts the opening of the pressure reducer 5 according to the pressure data provided by the pressure detector 6, so as to achieve the purpose of pressure balance.

[0028] The fire-fighting water pool is provided with a liquid level meter 7, the liquid level meter 7 is integrated with a liquid level signal module, the liquid level meter 7 is in communication connection with the fire control center, the liquid level meter is used to obtain the water level height information in the fire-fighting water pool, and the liquid level signal module is used to transmit the water level height information to the fire control center.

[0029] The high position of the fire hydrant system can centrally supply water to the fire hydrants in the subway station and the subway tunnel, thereby eliminating the traditional pump room in the station, reducing the civil engineering quantity of the subway construction, and significantly reducing the construction cost of the subway fire-fighting arrangement. Moreover, the fire-fighting water pool directly supplies water to the fire hydrant pipe network through gravity, without relying on the electric water pump, and can still continuously supply water when power failure or equipment failure occurs, thereby significantly improving the system reliability. The station fire hydrant water supply main pipe and the interval fire hydrant water supply main pipe of the fire hydrant system are both provided with a pressure reducer 5 and a pressure detector 6, the fire-fighting water pool is provided with a liquid level meter 7, and the fire control center can control the water pressure in the station fire hydrant water supply main pipe 3 and the interval fire hydrant water supply main pipe 4 in real time, thereby realizing remote monitoring of the water level and pressure data. The two ends of the station fire hydrant water supply main pipe and the interval fire hydrant water supply main pipe of the fire hydrant system are both connected with the fire-fighting water pool, thereby forming bidirectional water supply; when blockage, leakage or maintenance occurs in a certain section of the pipe, water flow can still be supplied through the other side path, thereby avoiding water supply interruption and ensuring continuous supply of fire-fighting water, and the fire hydrant system has higher tolerance to single-point failure.

[0030] In the preferred embodiment, the first water supply joint and the second water supply joint are both connected with a swirl preventer 17, which can improve the flow stability and efficiency of the fire-fighting water, ensure smooth water flow in the water supply pipe, and stabilize the water pressure.

[0031] In the preferred embodiment, the fire pool 1 is a tank type water storage tank, and a water tank vent pipe 14 is connected to the fire pool 1, the upper end of the water tank vent pipe 14 is 0.7m higher than the top of the water storage tank, the water tank vent pipe 14 is used to adjust the air pressure in the water tank and ensure smooth drainage of the fire pool 1. The bottom of the fire pool 1 is also provided with a vent pipe 12, and the vent pipe 12 is provided with a vent valve, the vent pipe 12 is used to periodically discharge all the water in the fire pool 1 and impurities in the water. The fire pool 1 is also provided with an overflow pipe 13, which is used to discharge excess water to control the water level in the fire pool 1. The pipe openings of the vent pipe 12 and the water tank vent pipe 14 are both provided with insect screen covers to prevent snakes, insects, mice and other impurities from entering the fire pool 1.

[0032] In the preferred embodiment, the fire pool 1 is provided with a water inlet pipe 2, and the water inlet pipe 2 is connected to the municipal pipe network or other water sources. The water inlet pipe 2 is also provided with a water inlet valve 21. A hydraulic water level control valve 22 is fixedly arranged in the fire pool 1, and the hydraulic water level control valve 22 is connected to the water inlet valve 21. The hydraulic water level control valve 22 is connected to a switch float through a connecting rod. The switch float can float on the water surface in the fire pool 1, and when the water level in the fire pool 1 is lower than the predetermined water level, the switch float can open the hydraulic water level control valve 22 through the connecting rod, thereby controlling the opening of the water inlet valve 21, and the water inlet pipe 2 automatically replenishes water to the fire pool 1. In this way, the fire hydrant system has an automatic water replenishment function, and the water quantity and water pressure of the fire pool 1 are sufficient.

[0033] In the preferred embodiment, the top side wall of the fire pool 1 is provided with a ladder 15, and the top of the fire pool 1 is provided with a locked manhole 16. The ladder 15 and the locked manhole 16 enable maintenance personnel to reach the top of the fire pool 1 and enter the fire pool 1, and ensure that the maintenance range covers the bottom and top of the fire pool 1.

[0034] In this document, the front, back, up, down and other orientation words are defined according to the positions of the parts in the drawings and the positions of the parts relative to each other, only to express the technical solutions clearly and conveniently. It should be understood that the use of the orientation words should not limit the scope of the application.

[0035] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0036] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A subway station and interval fire hydrant system based on high-position fire water pool, characterized in that: The fire pool (1), the station fire hydrant water supply main pipe (3) and the interval fire hydrant water supply main pipe (4) are connected with the fire hydrant pipe network in the station and the interval tunnel. The fire pool (1) is located above the subway station and the subway interval tunnel, and a first water supply connector group and a second water supply connector group are arranged on the fire pool (1), the first water supply connector group includes two first water supply connectors, and the second water supply connector group includes two second water supply connectors. The station fire hydrant water supply main pipe (3) is connected with the fire hydrant pipe network in the station, and the station fire hydrant water supply main pipe (3) is connected with the first water supply connector group. The interval fire hydrant water supply main pipe (4) is connected with the fire hydrant pipe network in the interval tunnel, and the interval fire hydrant water supply main pipe (4) is connected with the second water supply connector group. The station fire hydrant water supply main pipe (3) and the interval fire hydrant water supply main pipe (4) are provided with pressure reducing valves (5) and pressure detectors (6), the pressure reducing valves (5) and the pressure detectors (6) are connected with the fire control center, and the fire control center is used for adjusting the opening of the pressure reducing valve (5) according to the pressure data provided by the pressure detector (6).

2. The subway station and interval fire hydrant system based on the high-position fire pool according to claim 1, characterized in that: The first water supply connector and the second water supply connector are connected with a cyclone preventer (17).

3. The subway station and interval fire hydrant system based on the high-position fire pool according to claim 1, characterized in that: The fire pool (1) is a water tank, and a water tank breather pipe (14) is connected to the fire pool (1).

4. The subway station and interval fire hydrant system based on the high-position fire pool according to claim 1, characterized in that: The fire pool (1) is provided with a water inlet pipe (2) connected with the municipal pipe network.

5. The subway station and interval fire hydrant system based on high-position fire pool according to claim 3, characterized in that: The bottom of the fire pool (1) is further provided with a vent pipe (12), and the pipe openings of the vent pipe (12) and the water tank breather pipe (14) are provided with insect screen covers.

6. The subway station and interval fire hydrant system based on the high-position fire pool according to claim 5, characterized in that: The fire pool (1) is further provided with an overflow pipe (13).

7. The subway station and interval fire hydrant system based on high-position fire pool according to claim 1, characterized in that: The fire pool (1) is provided with a liquid level meter (7) in communication connection with the fire control center, the liquid level meter (7) is used for obtaining water level height information of the fire pool (1), and a liquid level signal module is used for transmitting the water level height information to the fire control center.

8. The subway station and interval fire hydrant system based on high-position fire pool according to claim 4, characterized in that: The water inlet pipe (2) is further provided with a water inlet valve (21).

9. The subway station and interval fire hydrant system based on the high-position fire pool according to claim 8, characterized in that: The fire pool (1) is fixedly provided with a hydraulic water level control valve (22) connected with the water inlet pipe (2).

10. The subway station and interval fire hydrant system based on high-position fire pool according to claim 1, characterized in that: The top side wall of the fire pool (1) is provided with a ladder (15), and the top of the fire pool (1) is provided with a manhole (16) with a lock.

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