标准编号:	GB 50084-2001
中文名称:	自动喷水灭火系统设计规范
英文名称:	Code of design for sprinkler systems [2005 Version]
中标分类:	P16    工程防火
行业分类:	GB    国家标准
ICS分类:	13.220.10 13.220.10    灭火 13.220.10
发布机构:	中华人民共和国建设部
发布日期:	2001-04-05
实施日期:	2001-7-1
标准状态:	被替代
被新标准替代:	GB 50084-2017 自动喷水灭火系统设计规范
被替代日期:	2018-1-1
替代旧标准:	GBJ 84-1985 自动喷水灭火系统设计规范GBJ84-85
翻译语言:	英文
文件格式:	PDF
中文字符数:	60000 字
翻译价格(元):	490.00 元
交付时间:	付款后 1 个工作日

1 General Provisions



1.0.1 This code is formulated with a view to correctly and rationally design automatic fire sprinkler systems and to provide protection for life and property from fire.

1.0.2 This code is applicable to the design of the automatic fire sprinkler systems in the newly built, expanded and rebuilt civil and industrial buildings.

This code is not applicable to the design of the automatic fire sprinkler systems in occupancies with special functions such as gunpowder, explosive, ammunition factories, nuclear power stations and aircraft hangars and so on.

1.0.3 The design of automatic fire sprinkler systems shall be based on the functions and fire risks of the occupancies. The selection of automatic fire -sprinkler systems shall be proper to provide reliable, economical, and advanced fire protection.

1.0.4 The system components of the design must comply with the existing relevant standards, and must pass the test done in National Center for Quality Supervision and Test of Fixed Fire-fighting Systems and Fire-resisting Building Components.

1.0.5 In case that the purposes of the occupancies with the designed automatic sprin¬kler systems are changed, the applicability of existing systems should be collated and examined. In case that the systems are inapplicable, the systems shall be redisigned according to this code.

1.0.6 The design of automatic fire sprinkler systems shall comply with not only this code but also the compulsory requirements of current relevant national design codes and standards.





2 Terms and Symbols



2.1 Terms



2.1.1 Sprinkler Systems

Consisting of sprinkler, alarm valves, waterflow device (waterflow indicator or pressure switch) as well as pipes and water supplying facilities, a sprinkler system can automatically spray out water in case of fire.

2.1.2 Close-type Sprinkler System

An automatic sprinkler system that adopts close-type sprinkler heads.

1 Wet Pipe System

A close-type system in which pipes are filled with pressed water when the system is in the pre-working condition.

2 Dry Pipe System

A close-type system in which pipes are filled with pressed air when the system is in the pre-working condition.

3 Preaction System

A system in which no water shall be filled in the feed mains and it can be switched into wet pipe system after the automatic fire alarm system opens deluge-alarm valve.

4 Recycling Preaction System

A preaction system that can automatically close valves after the fire is put off and open spraying valve when the fire is on again.

2.1.3 Deluge System

An automatic sprinkler system that is controlled by automatic fire alarm system or transmission pipe and that can automatically supply water to the open-type sprinkler after the deluge alarm system and water supply valve are opened automatically. This system is also called open-style system.

2.1.4 Drencher Systems

A water spray system that consists of open-type spray heads or drencher spray heads, deluge alarm valves or temperature sensing deluge valves and waterflow devices (waterflow indicator or pressure switch). It is used in smoke and fire stopping and cooling partitions.

1 Water curtain for fire compartment

Drencher that forms water wall or water curtain with dense water spraying.

2 Drencher for cooling protection

Drencher of the compartments such as cooling fire protection curtain and so on.

2.1.5 Combined sprinkler-foam system

An automatic sprinkler system that either sprays water or foam after installing de¬vices that supply foam combined liquid.

2.1.6 Area of sprinklers operation

The maximum area that is protected based on the discharge density in a fire acci¬dent.

2.1.7 Standard sprinkler

Sprinklers with flow rate factor of K=80.

2.1.8 Response time index (RTI)

Heat sensibility performances of close type sprinkler.

2.1.9 Fast response sprinkler

Close-type sprinklers with the response time index RTI≤50 (m·s)0.5.

2.1.10 Extended coverage sidewall sprinkler

Sidewall fast response sprinklers with the flow rate factors of K=115.

2.1.11 Early suppression fast response sprinkler (ESFR)

Large flow rate special sprinklers with the RTI≤28±8 (m·s)0.5 and used to pro¬tect high stow or high rack warehouses.

2.1.12 Area of one sprinkler operation

Product of the distance between adjacent sprinklers on the same branch line and the distance between adjacent branch lines.

2.1.13 End mains

The pipes supplying water to cross lines after alarm valve.

2.1.14 Feed mains

The pipes supplying water to branch lines.

2.1.15 Branch lines

Pipes supplying water directly or through sprig-ups to sprinklers.

2.1.16 System pipes

A general term for feed mains, cross mains and branch lines.

2.1.17 Sprig-up

Vertical pipes connecting sprinklers and branch lines.

2.1.18 Signal valve

Valve with the function to give signals to indicate open or close condition.



2.2 Symbols



a——Horizontal space between sprinkler and obstruction;

b——Vertical space between sprinkler deflector and the underside of obstruction;

c——Length of one side of the cross section of obstruction;

d——Outside diameter of pipe;

dg——Calculated inside diameter of throttle pipe;

dj——Calculated inside diameter of pipe;

dk——Inside diameter of hole on pressure-reducing orifice;

e——Length of another side of the cross section of obstruction;

f——Vertical space between sprinkler deflector and top surface of the Non-full height partition;

g——Acceleration of gravity;

h——Pipe friction loss and local friction loss;

H——Water pressure at the pump lift or system entrance;

Hg——Friction loss of throttle plpe;

Hk——Friction loss of pressure-reducing orifice;

i——Friction loss of the pipe per meter;

K——Sprinkler flow rate factor;

L——Length of throttle pipe;

n——Number of sprinklers in the operating area at most hydraulically remote posi¬tion;

P——Sprinkler working pressure;

Po——Working pressure of the most hydraulically remote sprinkler;

q——Flow rate of sprinkler;

qi——Flow rate of the sprinkler knot within the operating area of at the most hydraulically remote position;

Qs——Design flow rate;

V——Average flow velocity of the water in pipe;

Vg——Average flow velocity of the water in throttle pipe;

Vk——Average flow velocity of water in pipe behind pressure-reducing orifice;

Z——Difference of elevations of the most hydraulically remote sprinkler and the lowest level of fire pool or the plane central line of system entrance line;

ζ——gum of local resistance factors of gradual shrinking pipe and gradual expanding pipe in the throttle pipe;

ξ——Local resistance factor of pressure-reducing orifice.





3 Hazard Classifications of Occupancies



3.0.1 The hazard classifications of occupancies should comply with the following requirements:

1 Light hazard

2 Ordinary hazard

Class Ⅰ

Class Ⅱ

3 Extra hazard

Class Ⅰ

Class Ⅱ

4 Warehouse hazard classification

Class Ⅰ

Class Ⅱ

Class Ⅲ

3.0.2 The hazard classifications of occupancies should be determined after analyzing the fire features and the difficulty levels of the hot air stream to open the sprinkler and make it discharge water to the designed position. And the determination also shall be based on factors such as purposes, fire loads of the contents and indoor space condition etc. See Appendix A of this code for examples.

3.0.3 In case of big differences between fire hazards and fighting difficulties of the sites in the buildings, system selection and fire hazard classifications should be deter¬mined according to the actual conditions of each site.





4 System Selection



4.1 General Requirements



4.1.1 Automatic sprinkler systems should be equipped within the places with large population, hard evacuation, difficult for outside assistance and rescue or serious fire hazard.

4.1.2 Automatic sprinkler system is inapplicable to the places with the following arti¬cles:

1 Articles can explode or their burning can be accelerated when contacting with water;

2 Articles with the possibility to cause serious chemical reaction or produce haz¬ardous articles with water;

3 Liquids can cause spurts or boiling when sprinkled water.

4.1.3 The system selection of automatic sprinkler system shall be determined accord¬ing to the fire features or environmental conditions of the occupancies. Close type sys¬tem is inapplicable to the outdoor places.

4.1.4 The design principle of the automatic sprinkler system shall meet the following provisions:

1 Fire detectors of close-type sprinkler or startup system shall effectively detect fires at the initial stage;

2 Wet pipe system and dry pipe system shall be started up after one sprinkler is opened, and the preaction system and deluge system should be started up after the auto¬matic fire alarm system alarmed.

3 The sprinklers within the operating areas shall continuously spray water with selected intensity in prescribed time;

4 The water sprayed by sprinklers should be average and not be suffocated.



4.2 System Selection



4.2.1 For occupancies with ambient temperature not lower than 4℃ and not higher than 70℃, wet pipe systems shall be adopted.

4.2.2 For occupancies with ambient temperature lower than 4℃ or higher than 70℃, dry pipe systems shall be adopted.

4.2.3 For occupancies with one of the following requirements, preaction system shall be adopted:

1 Water leakage is strictly prohibited when the system is in the pre-working con¬ditions;

2 False spraying of system is strictly prohibited;

3 Dry pipe system is replaced.

4.2.4 For the occupancies where water spraying should be stopped timely after the fire is put out, recycling preaction system shall be adopted.

4.2.5 For occupancies with one of the following requirements, deluge system shall be adopted:

1 The area where the horizontal spreading of fire is fast and the fire cannot be covered effectively by the spraying water of the close-type sprinkler;

2 The indoor clear height exceeds the prescription in Article 6.1.1 and the fire must be put out at the initial stage;

3 With the hazard as extra hazard Ⅱ.

4.2.6 When automatic sprinkler system is provided in the warehouses that meet the prescriptions in article 5.0.6 of this code, early suppression fast response sprinkler and wet pipe system should be adopted.

4.2.7 As for the occupancies with large amount of flammable liquids, the combined sprinkler-foam system should be adopted in one of the following manners:

1 To strengthen the performances of close-type system by adopting foam extin¬guishing agents;

2 The deluge system prays water to extinguish fire at the initial stage, and then sprays foam to enforce fire suppression effect.

3 The deluge system prays foam to extinguish fire at the initial stage, and then prays cool water to prevent burn-back.

The selection and storage of foam extinguish agents and the employment of relevant equipment shall be in accordance with the current national standard “Code for Design of Low Multiple Foam Extinguish System” GB 50151—92.

4.2.8 The dry pipe system, preaction system, deluge system and the combined sprin-kler-foam system of the local occupancies may be connected with the wet pipe system of the same occupancies and shall be also connected with the feed mains.

4.2.9 The sprinkler system should include the following parts, components and facili¬ties:

1 Sprinkler, waterflow indicator, alarm valve, pressure valves and end water test device, as well as pipes and water supply facilities;

2 The sections which control the pipe static pressure should be supplied or equipped with pressure-reducing valves, while the sections which control the pipe dy¬namic pressure should be equipped with pressure-reducing orifices or throttle pipes;

3 Discharge valve (discharge gap), exhaust valve (exhaust gap) and drain holes;

4 Fast exhaust valves shall be provided on the pipes in dry pipe system and preac¬tion system. As for pressure air pipes, electrical valves shall be provided before the en¬trance of the fast exhaust valves.

4.2.10 Protecting and cooling drencher should directly spray water onto the protecting targets; water curtain for fire compartment should not be applicable to openings (except for arena opening) with the size exceeding 15m (width)×8m (height).

1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Hazard Classifications of Occupancies
4 System Selection
4.1 General Requirements
4.2 System Selection
5 Basic Design Parameters
6 System Components
6.1 Sprinklers
6.2 Alarm Valve
6.3 Waterflow Indicator
6.5 End Water Test Device
7 Sprinklers Arrangement
7.1 General Requirements
7.2 Distance between Sprinkler and Obstruction
8 Pipe
9 Hydraulic Calculation
9.1 Design Flow Rate of System
9.2 Hydraulic Calculation of Pipes
9.3 Pressure-reducing Measures
10 Water Supply
10.1 General Requirements
10.2 Water Pump
10.3 Water Tanks
10.4 Siamese Connections
11 Operation and Control
12 Local Application System
Appendix A Examples of Classifications of Occupancies
Appendix B Examples of Classifications of Plastics and Rubbers
Appendix C List of Equivalent Lengths
Appendix D Local Resistance Factor of Pressure-reducing Orifice
Explanation of Wording in This Code

1 总 则
1.0.1 为了正确、合理地设计自动喷水灭火系统，保护人身和财产安全，制订本规范。
1.0.2 本规范适用于新建、扩建、改建的民用与工业建筑中自动喷水灭火系统的设计。
本规范不适用于火药、炸药、弹药、火工品工厂、核电站及飞机库等特殊功能建筑中自动喷水灭火系统的设计。
1.0.3 自动喷水灭火系统的设计，应密切结合保护对象的功能和火灾特点，积极采用新技术、新设备、新材料，做到安全可靠、技术先进、经济合理。
1.0.4 设计采用的系统组件，必须符合国家现行的相关标准，并经国家固定灭火系统质量监督检验测试中心检测合格。
1.0.5 当设置自动喷水灭火系统的建筑变更用途时，应校核原有系统的适用性。当不适应时，应按本规范重新设计。
1.0.6 自动喷水灭火系统的设计，除执行本规范外，尚应符合国家现行的相关强制性标准。

2 术语和符号
2.1 术 语
2.1.1 自动喷水灭火系统 sprinkler systems
由洒水喷头、报警阀组、水流报警装置(水流指示器或压力开关)等组件，以及管道、供水设施组成，并能在发生火灾时喷水的自动灭火系统。
2.1.2 闭式系统 close-type sprinkler system
采用闭式洒水喷头的自动喷水灭火系统。
1 湿式系统 wet pipe system
准工作状态时管道内充满用于启动系统的有压水的闭式系统。
2 干式系统 dry pipe system
准工作状态时配水管道内充满用于启动系统的有压气体的闭式系统。
3 预作用系统 preaction system
准工作状态时配水管道内不充水，由火灾自动报警系统自动开启雨淋报警阀后，转换为湿式系统的闭式系统。
4 重复启闭预作用系统 recycling preaction system
能在扑灭火灾后自动关阀、复燃时再次开阀喷水的预作用系统。
2.1.3 雨淋系统 deluge system
由火灾自动报警系统或传动管控制，自动开启雨淋报警阀和启动供水泵后，向开式洒水喷头供水的自动喷水灭火系统。亦称开式系统。
2.1.4 水幕系统 drencher systems
由开式洒水喷头或水幕喷头、和雨淋报警阀组或感温雨淋阀，以及水流报警装置(水流指示器或压力开关)等组成，用于挡烟阻火和冷却分隔物的喷水系统。
1 防火分隔水幕 water curtain for fire compartment
密集喷洒形成水墙或水帘的水幕。
2 防护冷却水幕 drencher for cooling protection
冷却防火卷帘等分隔物的水幕。
2.1.5 自动喷水－泡沫联用系统 combined sprinkler-foam system
配置供给泡沫混合液的设备后，组成既可喷水又可喷泡沫的自动喷水灭火系统。
2.1.6 作用面积 area of sprinklers operation
一次火灾中系统按喷水强度保护的最大面积。
2.1.7 标准喷头 standard sprinkler
流量系数K=80的洒水喷头。
2.1.8 响应时间指数(RTI) response time index
闭式喷头的热敏性能指标。
2.1.9 快速响应喷头 fast response sprinkler
响应时间指数RTI≤50(ms)0.5的闭式洒水喷头。
2.1.10 边墙型扩展覆盖喷头 extended coverage sidewall sprinkler
流量系数K=115的边墙型快速响应喷头。
2.1.11 早期抑制快速响应喷头 early suppression fast response sprinkler(ESFR)
响应时间指数RTI≤28±8(ms)0.5，用于保护高堆垛与高货架仓库的大流量特种洒水喷头。
2.1.12 一只喷头的保护面积 area of one sprinkler operation
同一根配水支管上相邻喷头的距离与相邻配水支管之间距离的乘积。
2.1.13 配水干管 feed mains
报警阀后向配水管供水的管道。
2.1.14 配水管 cross mains
向配水支管供水的管道。
2.1.15 配水支管 branch lines
直接或通过短立管向喷头供水的管道。
2.1.16 配水管道 system pipes
配水干管、配水管及配水支管的总称。
2.1.17 短立管 sprig-up
连接喷头与配水支管的立管。
2.1.18 信号阀 signal valve
具有输出启闭状态信号功能的阀门。
2.2 符 号
a —— 喷头与障碍物的水平间距
b —— 喷头溅水盘与障碍物底面的垂直间距
c —— 障碍物横截面的一个边长
d —— 管道外径
dg —— 节流管的计算内径
dj —— 管道的计算内径
dk —— 减压孔板的孔口直径
e —— 障碍物横截面的另一个边长
f —— 喷头溅水盘与不到顶隔墙顶面的垂直间距
g —— 重力加速度
h —— 系统管道沿程和局部的水头损失
H —— 水泵扬程或系统入口的供水压力
Hg —— 节流管的水头损失
Hk —— 减压孔板的水头损失
i —— 每米管道的水头损失
k —— 喷头流量系数
L —— 节流管的长度
n —— 最不利点处作用面积内的喷头数
P —— 喷头工作压力
P0 —— 最不利点处喷头的工作压力
q —— 喷头流量
qi —— 最不利点处作用面积内各喷头节点的流量
Qs —— 系统设计流量
V —— 管道内水的平均流速
Vg —— 节流管内水的平均流速
Vk —— 减压孔板后管道内水的平均流速
Z —— 最不利点处喷头与消防水池最低水位或系统入口管水平中心线之间的高程差
ζ —— 节流管中渐缩管与渐扩管的局部阻力系数之和
ξ —— 减压孔板的局部阻力系数

3 设置场所火灾危险等级
3.0.1 设置场所火灾危险等级的划分，应符合下列规定：
1 轻危险级
2 中危险级
Ⅰ级
Ⅱ级
3 严重危险级
Ⅰ级
Ⅱ级
4 仓库危险级
Ⅰ级
Ⅱ级
Ⅲ级
3.0.2 设置场所的火灾危险等级，应根据其用途、容纳物品的火灾荷载及室内空间条件等因素，在分析火灾特点和热气流驱动喷头开放及喷水到位的难易程度后确定。举例见本规范附录A。
3.0.3 当建筑物内各场所的火灾危险性及灭火难度存在较大差异时，宜按各场所的实际情况确定系统选型与火灾危险等级。

4 系 统 选 型
4.1 一 般 规 定
4.1.1 自动喷水灭火系统应在人员密集、不易疏散、外部增援灭火与救生较困难的性质重要或火灾危险性较大的场所中设置。
4.1.2 自动喷水灭火系统不适用于存在较多下列物品的场所：
1 遇水发生爆炸或加速燃烧的物品；
2 遇水发生剧烈化学反应或产生有毒有害物质的物品；
3 洒水将导致喷溅或沸溢的液体。
4.1.3 自动喷水灭火系统的系统选型，应根据设置场所的火灾特点或环境条件确定，露天场所不宜采用闭式系统。
4.1.4 自动喷水灭火系统的设计原则应符合下列规定：
1 闭式喷头或启动系统的火灾探测器，应能有效探测初期火灾；
2 湿式系统、干式系统应在开放一只喷头后自动启动，预作用系统、雨淋系统应在火灾自动报警系统报警后自动启动；
3 作用面积内开放的喷头，应在规定时间内按设计选定的强度持续喷水；
4 喷头洒水时，应均匀分布，且不应受阻挡。
4.2 系 统 选 型
4.2.1 环境温度不低于4℃，且不高于70℃的场所应采用湿式系统。
4.2.2 环境温度低于4℃，或高于70℃的场所应采用干式系统。
4.2.3 具有下列要求之一的场所应采用预作用系统：
1 系统处于准工作状态时，严禁管道漏水；
2 严禁系统误喷；
3 替代干式系统。
4.2.4 灭火后必须及时停止喷水的场所，应采用重复启闭预作用系统。
4.2.5 具有下列条件之一的场所，应采用雨淋系统：
1 火灾的水平蔓延速度快、闭式喷头的开放不能及时使喷水有效覆盖着火区域；
2 室内净空高度超过本规范6.1.1条的规定，且必须迅速扑救初期火灾；
3 严重危险级Ⅱ级。
4.2.6 符合本规范5.0.6规定条件的仓库，当设置自动喷水灭火系统时，宜采用快速响应早期抑制喷头，并宜采用湿式系统。
4.2.7 存在较多易燃液体的场所，宜按下列方式之一采用自动喷水—泡沫联用系统：
1 采用泡沫灭火剂强化闭式系统性能；
2 雨淋系统前期喷水控火，后期喷泡沫强化灭火效能；
3 雨淋系统前期喷泡沫灭火，后期喷水冷却防止复燃；
系统中泡沫灭火剂的选型、储存及相关设备的配置，应符合现行国家标准《低倍数泡沫灭火系统设计规范》GB50151—92的规定。
4.2.8 建筑物中保护局部场所的干式系统、预作用系统、雨淋系统、自动喷水—泡沫联用系统，可串联接入同一建筑物内湿式系统，并应与其配水干管连接。
4.2.9 自动喷水灭火系统应有下列组件、配件和设施：
1 应设有洒水喷头、水流指示器、报警阀组、压力开关等组件和末端试水装置，以及管道、供水设施；
2 控制管道静压的区段宜分区供水或设减压阀，控制管道动压的区段宜设减压孔板或节流管；
3 应设有泄水阀(或泄水口)、排气阀(或排气口)和排污口；
4 干式系统和预作用系统的配水管道应设快速排气阀。有压充气管道的快速排气阀入口前应设电动阀。
4.2.10 防护冷却水幕应直接将水喷向被保护对象；防火分隔水幕不宜用于尺寸超过15m(宽)×8m(高)的开口(舞台口除外)。

5 设计基本参数
5.0.1 民用建筑和工业厂房的系统设计参数不应低于表5.0.1的规定。
表5.0.1 民用建筑和工业厂房的系统设计参数
火灾危险等级 净空高度
(m) 喷水强度
(L／min﹒m2) 作用面积
(m2)
轻危险级 ≤8 4 160
中危险级 Ⅰ级 6
Ⅱ级 8
严重危险级 Ⅰ级 12 260
Ⅱ级 16
注：系统最不利点处喷头的工作压力不应低于0.05MPa。
5.0.1A 非仓库类高大净空场所设置自动喷水灭火系统时，湿式系统的设计基本参数不应低于表5.0.1A的规定。
表5.0.1A 非仓库类高大净空场所的系统设计基本参数
适用场所 净空高度
(m) 喷水强度
(L/min﹒m2) 作用面积
(m2) 喷头
选型 喷头最
大间距
(m)
中庭、影剧院、音乐厅、单一功能体育馆等 8～12 6 260 K=80 3
会展中心、多功能体育馆、自选商场等 8～12 12 300 K=115
注：1 喷头溅水盘与顶板的距离应符合7.1.3的规定。
2 最大储物高度超过3.5m的自选商场应按16L/min﹒m2确定喷水强度。
3 表中“～”两侧的数据，左侧为“大于”、右侧为“不大于”。
5.0.2 仅在走道设置单排喷头的闭式系统，其作用面积应按最大疏散距离所对应的走道面积确定。
5.0.3 装设网格、栅板类通透性吊顶的场所，系统的喷水强度应按本规范表5.0.1规定值的1.3倍确定。
5.0.4 干式系统与雨淋系统的作用面积应符合下列规定：
1 干式系统的作用面积应按本规范表5.0.1规定值的1.3倍确定。
2 雨淋系统中每个雨淋阀控制的喷水面积不宜大于表5.0.1中的作用面积。
5.0.5 设置自动喷水灭火系统的仓库，系统设计基本参数应符合下列规定：
1 堆垛储物仓库不应低于表5.0.5-1、表5.0.5-2的规定；
2 货架储物仓库不应低于表5.0.5-3～表5.0.5-5的规定；
3 当Ⅰ级、Ⅱ级仓库中混杂储存Ⅲ级仓库的货品时，不应低于表5.0.5-6的规定。
4 货架储物仓库应采用钢制货架，并应采用通透层板，层板中通透部分的面积不应小于层板总面积的50％。
5 采用木制货架及采用封闭层板货架的仓库，应按堆垛储物仓库设计。
表5.0.5 堆垛储物仓库的系统设计基本参数
火灾危险等级 储物高度
(m) 喷水强度
(L/min﹒m 2) 作用面积
(m 2) 持续喷水时间
(h)
仓库危险级
Ⅰ级 3.0～3.5 8 160 1.0
3.5～4.5 8 200 1.5
4.5～6.0 10
6.0～7.5 14
仓库危险级
Ⅱ级 3.0～3.5 10 200 2.0
3.5～4.5 12
4.5～6.0 16
6.0～7.5 22
注：本表及表5.0.5-3、表5.0.5-4适用于室内最大净空高度不超过9.0m的仓库。

表5.0.5-2 分类堆垛储物的Ⅲ级仓库的系统设计基本参数
最大储物高度
(m) 最大净空高度
(m) 喷水强度(L/min﹒m2)
A B C D
1.5 7.5 8.0
3.5 4.5 16.0 16.0 12.0 12.0
6.0 24.5 22.0 20.5 16.5
9.5 32.5 28.5 24.5 18.5
4.5 6.0 20.5 18.5 16.5 12.0
7.5 32.5 28.5 24.5 18.5
6.0
7.5 24.5 22.5 18.5 14.5
9.0 36.5 34.5 28.5 22.5
7.5 9.0 30.5 28.5 22.5 18.5
注：1 A— 袋装与无包装的发泡塑料橡胶 B— 箱装的发泡塑料橡胶
C— 箱装与袋装的不发泡塑料橡胶 D— 无包装的不发泡塑料橡胶
2 作用面积不应小于240 m2。
表5.0.5-3 单、双排货架储物仓库的系统设计基本参数
火灾危险等级 储物高度
(m) 喷水强度
(L／min﹒m 2) 作用面积
(m 2) 持续喷水时间
(h)
仓库危险级
Ⅰ级 3.0～3.5 8 200 1.5
3.5～4.5 12
4.5～6.0 18
仓库危险级
Ⅱ级 3.0～3.5 12 240 1.5
3.5～4.5 15 280 2.0
表5.0.5-4 多排货架储物仓库的系统设计基本参数
火灾危险等级 储物高度
(m) 喷水强度
(L／min﹒m 2) 作用面积
(m 2) 持续喷水时间
(h)
仓库危险级
Ⅰ级 3.5～4.5 12 200 1.5
4.5～6.0 18
6.0～7.5 12+1J

续表5.0.5-4
火灾危险等级 储物高度
(m) 喷水强度
(L／min﹒m 2) 作用面积
(m 2) 持续喷水时间
(h)
仓库危险级
Ⅱ级 3.0～3.5 12 200 1.5
3.5～4.5 18
4.5～6.0 12+1J
6.0～7.5 12+2J
表5.0.5-5 货架储物Ⅲ级仓库的系统设计基本参数
序号 室内最大净高
(m) 货架
类型 储物高度
(m) 货顶上
方净空
(m) 顶板下喷头
喷水强度
(L/min﹒m2) 货架内置喷头
层数 高度
(m) 流量
系数
1 － 单、双排 3.0～6.0 ＜1.5 24.5 － － －
2 ≤6.5 单、双排 3.0～4.5 - 18.0 － － －
3 － 单、双、多排 3.0 ＜1.5 12.0 － － －
4 － 单、双、多排 3.0 1.5～3.0 18.0 － － －
5 － 单、双、多排 3.0～4.5 1.5～3.0 12.0 1 3.0 80
6 - 单、双、多排 4.5～6.0 ＜1.5 24.5 - - -
7 ≤8.0 单、双、多排 4.5～6.0 - 24.5 - - -
8 - 单、双、多排 4.5～6.0 1.5～3.0 18.0 1 3.0 80
9 - 单、双、多排 6.0～7.5 ＜1.5 18.5 1 4.5 115
10 ≤9.0 单、双、多排 6.0～7.5 - 32.5 - - -
注：1 持续喷水时间不应低于2h，作用面积不应小于200 m2。
2 序号5与序号8：货架内设置一排货架内置喷头时，喷头的间距不应大于3.0m；设置两排或多排货架内置喷头时，喷头的间距不应大于3.0×2.4(m)。
3 序号9：货架内设置一排货架内置喷头时，喷头的间距不应大于2.4m，设置两排或多排货架内置喷头时，喷头的间距不应大于2.4×2.4(m)。
4 设置两排和多排货架内置喷头时，喷头应交错布置。
5 货架内置喷头的最低工作压力不应低于0.1MPa。
6 表中字母“J”表示货架内喷头，“J”前的数字表示货架内喷头的层数。
表5.0.5-6 混杂储物仓库的系统设计基本参数
货品
类别 储存
方式 储物高度
(m) 最大净空高度
(m) 喷水强度
(L/min﹒m2) 作用
面积
(m2) 持续喷
水时间
(h)
储物中包括沥青制品或箱装A组塑料橡胶 堆垛与
货架 ≤1.5 9.0 8 160 1.5
1.5～3.0 4.5 12 240 2.0
1.5～3.0 6.0 16 240 2.0
3.0～3.5 5.0
堆垛 3.0～3.5 8.0 16 240 2.0
货架 1.5～3.5 9.0 8+1J 160 2.0
储物中包括袋装A组塑料橡胶 堆垛与
货架 ≤1.5 9.0 8 160 1.5
1.5～3.0 4.5 16 240 2.0
3.0～3.5 5.0
堆垛 1.5～2.5 9.0 16 240 2.0
储物中包括袋装不发泡A组塑料橡胶 堆垛与
货架 1.5～3.0 6.0 16 240 2.0
储物中包括袋装发泡A组塑料橡胶 货架 1.5～3.0 6.0 8+1J 160 2.0
储物中包括轮胎
或纸卷 堆垛与
货架 1.5～3.5 9.0 12 240 2.0
注：1 无包装的塑料橡胶视同纸袋、塑料袋包装。
2 货架内置喷头应采用与顶板下喷头相同的喷水强度，用水量应按开放6只喷头确定。
5.0.6 仓库采用快速响应早期抑制喷头的系统设计基本参数不应低于表5.0.6的规定。
表5.0.6 仓库采用早期抑制快速响应喷头的系统设计基本参数
储物类别 最大净空高度
(m) 最大储物高度
(m) 喷头流量系数
K 喷头最大间距(m) 作用面积内开放的喷头数
(只) 喷头最低
工作压力
(Mpa)
Ⅰ级、Ⅱ级、
沥青制品、
箱装不发泡塑料 9.0 7.5 200 3.7 12 0.35
360 0.10
10.5 9.0 200 3.0 12 0.50
360 0.15
12.0 10.5 200 12 0.50
360 0.20
13.5 12.0 360 12 0.30
袋装不发泡塑料 9.0 7.5 200 3.7 12 0.35
240 0.25
9.5 7.5 200 12 0.40
240 0.30
12.0 10.5 200 3.0 12 0.50
240 0.35
箱装发泡塑料 9.0 7.5 200 3.7 12 0.35
9.5 7.5 200 12 0.40
240 0.30
注：早期抑制快速响应喷头在保护最大高度范围内，如有货架应为通透性层板。
5.0.7 货架储物仓库的最大净空高度或最大储物高度超过本规范5.0.5、5.0.6的规定时，应设货架内置喷头。宜在自地面起每4m高度处设置一层货架内置喷头，当喷头流量系数K=80时，工作压力不小于0.20MPa,当k=115时，工作压力不小于0.10MPa，喷头间距不应大于3m，也不宜小于2m。计算喷头数量不应小于表5.0.7的规定。货架内置喷头上方的层间隔板应为实层板。
表5.0.7 货架内开放喷头数
仓库危险级 货架内置喷头的层数
1 2 ＞2
Ⅰ 6 12 14
Ⅱ 8 14
Ⅲ 10
5.0.7A 仓库内设有自动喷水灭火系统时，宜设消防排水设施。
5.0.8 闭式自动喷水—泡沫联用系统的设计基本参数，除执行本规范表5.0.1的规定外，尚应符合下列规定：
1 湿式系统自喷水至喷泡沫的转换时间，按4L/s流量计算，不应大于3min；
2 泡沫比例混合器应在流量等于和大于4L/s时符合水与泡沫灭火剂的混合比规定；
3 持续喷泡沫的时间不应小于10min。
5.0.9 雨淋自动喷水—泡沫联用系统应符合下列规定：
1 前期喷水后期喷泡沫的系统，喷水强度与喷泡沫强度均不应低于本规范表5.0.1、表5.0.5-1～表5.0.5-6的规定；
2 前期喷泡沫后期喷水的系统，喷泡沫强度与喷水强度均应执行现行国家标准《低倍数泡沫灭火系统设计规范》GB50151—92的规定；
3 持续喷泡沫时间不应小于10min。
5.0.10 水幕系统的设计基本参数应符合表5.0.10的规定：
表5.0.10 水幕系统的设计基本参数
水幕类别 喷水点高度
(m) 喷水强度
(L/sm) 喷头工作压力
(MPa)
防火分隔水幕 ≤12 2 0.1
防护冷却水幕 ≤4 0.5
注：防护冷却水幕的喷水点高度每增加1m，喷水强度应增加0.1L/sm，但超过9m时喷水强度仍采用1.0L/sm。
5.0.11 除本规范另有规定外，自动喷水灭火系统的持续喷水时间，应按火灾延续时间不小于1h确定。
5.0.12 利用有压气体作为系统启动介质的干式系统、预作用系统，其配水管道内的气压值，应根据报警阀的技术性能确定；利用有压气体检测管道是否严密的预作用系统，配水管道内的气压值不宜小于0.03MPa，且不宜大于0.05MPa。