How to design a train station fire system?

General railway station house fire water supply system, norms are involved in a July 7, 2015 in force shall prevail.

If you think of the platform as part of the station, the fire inside the station and the station is usually separate.

First, the platform: the platform to do the fire hydrant, the equivalent of outdoor fire hydrant, and to place a fire extinguisher. Now some station platforms will replace the fire extinguisher with a cart-type water mist device. I have seen the extinguishing experiments on that gadget. The effect is very good. It is expensive, the railway is poor, and there are not many.

Second, the station house: The fire station system composition in the station house depends on the scale of the station house. The railway has a "Code for the Fire Protection of Railway Engineering Design" TB10063-2007 ( Version 2012 ), and some places are stricter than the general civil construction regulations, and it also stipulates the setting places for gas firefighting etc., which are less common for civil construction.

1. Fire hydrants: Fire hydrants are usually installed in railway station rooms. I will not elaborate on the fire hydrant system. There is no major difference from the fire hydrant system in general civil buildings. All in accordance with the "Code for the Design of Fire-fighting Water Supply and Hydrant Systems" GB50974-2014 . ==> Read related "Outdoor fire hydrant design specifications."

2. Fire extinguisher: As with general civil buildings, please refer to "Code for Design of Extinguisher Configuration for Buildings" 50140-2005 . We generally use portable ammonium phosphate dry powder fire extinguishers and portable carbon dioxide fire extinguishers. It should be noted that there are more equipment rooms and electric rooms in the railway station houses, and some requirements are relatively high. In addition, the waiting room of a large station building has few places where fire extinguishers can be placed, and cart fire extinguishers with larger protection radius may be used.

3. Self-injection: Whether the self-injection is set is usually determined by reference to “Code for Fire Protection of Architectural Design” GB50016-2014 . It is common for railway station rooms to be equipped with self-injection. Self-spraying may be provided in waiting rooms and office areas. Self-spraying is often provided in locations with a clearance of 8m or less. The detailed requirements for self-injection refer to the “Specifications for Design of Automatic Sprinkler Systems” GB50084-2001 ( 2005 edition). The 8m-12m site is relatively slim, but it can also be self-injected, or it can be used as a small cannon or special fire-fighting facilities.

4. Water cannons: headroom typically greater than 12m in the waiting room (the station house will typically be in the waiting room clearance greater than 12m), the monitor should be set. The definition of water cannons is a bit imaginary, because there are GB503380-2003 "Design Specification for Fixed Fire Extinguishing System" and " Technical Specification for Large Space Intelligent Active Sprinkler System" CECS263:2009 . There are many differences in the setting methods of several types of guns, and the newly constructed station houses both 20L/s artillery and 5L/s artillery, which can be combined with specific analysis. But no matter what kind of water cannon, now the technology is relatively mature, it is very smart, which point to detect the fire, wait for second seconds to shoot the past, the error is simply centimeters.

5. Gas firefighting: Some equipment rooms in the station house shall be equipped with gas fire extinguishing devices in accordance with the "Code for the Fire Protection of Railway Engineering Design" TB10063-2007 ( 2012 edition). Refer to "Code for Design of Gas Fire Extinguishing System" GB50370-2005 . I usually use heptafluoropropane more, pay attention to the setting of the gas off the room to set the pressure relief, because they are all high-pressure gas, do not do so if the pressure will collapse the wall. People cannot enter rooms that are spraying gas extinguishing agents. However, it is quite expensive to extinguish the air, and the places where the gas extinguishment is stipulated in the iron regulations are all estimated to be economic considerations.

6. Fire pump room and fire pool: The railway station basically has its own fire pump room, usually more underground, which puts pumps, voltage regulators and so on. The fire pump is ready for use and I do not need to use it. If there are more systems, there will be more pumps in the pump room. Fire hydrant, self-injection, and water cannons all have different working pressures. They may also be used to provide fire extinguishers for outdoor platforms. The pump. There is nothing special about fire pools, both indoor and outdoor.

7. Fire Fighting Tanks: Fire fighting water tanks are a bit more stuffy. Stations , on the 15L / s hydrant water consumption, but also to do 18m3 water tanks; large station, one to do modeling, water tanks want to be higher than the water cannons, basically impossible. But still have to have, still have to do, the frame is not high enough to increase the voltage regulator device (in fact, in accordance with the current fire regulations, basically all have to do the regulator). Now, if we do a big stop, we will violate the strong rules. If we go back and we don't have water in the early days, we may have to catch it. Well, that's the end of the firefighting system. Finally, give a number of benefits, a summary of the common specifications of railway station firefighting water supply.

1. "Fire Protection Design Code for Railway Engineering" TB10063-2007 J774-2008 (2012 Edition)

2. "Code for fire protection of building design" GB50016-2014

3. "Specifications for Design of Automatic Sprinkler Systems" GB50084-2001 ( 2005 edition)

4. Specification for Configuration Design of Building Fire Extinguisher GB50140-2005

5. "Gas Fire Extinguishing System Design Specification" GB50370-2005

6. "Technical Specification for Large Space Intelligent Active Sprinkler Systems" ( CECS 263:2009 )

7. "Technical code for fire-fighting water supply and fire hydrant system" GB50974-20148. "Design specification for fixed fire extinguishing fire-extinguishing system" GB50338-2003