川消|消防水系统21个压力值速查（动压与静压）及规范定义

来源：http://www.cx-fire.com/ 日期：2026-03-19

　　一、规范定义与依据

　　1、 Standard definition and basis

　　1、静水压力 (Static Pressure)

　　1. Static Pressure

　　（1）定义：消防给水系统管网内水在静止时，管道某一点的压力。此时系统处于准工作状态（即日常待命，未启动灭火）。

　　(1) Definition: The pressure at a certain point in the pipeline of a fire water supply system when the water in the pipeline is stationary. At this time, the system is in a quasi working state (i.e. daily standby, not activated for fire extinguishing).

　　（2）主要规范依据：该定义在《消防给水及消火栓系统技术规范》GB50974-2014的配套图示 15S909《消防给水及消火栓系统技术规范》图示》?中有明确图示和解释。该图集是对国家规范的权威阐释。

　　(2) Main specification basis: This definition is included in the accompanying diagram 15S909 "Technical Specification for Fire Water Supply and Hydrant Systems" in GB50974-2014? There are clear illustrations and explanations in it. This atlas is an authoritative interpretation of national standards.

　　2、动水压力 (Dynamic Pressure / Working Pressure)

　　2. Dynamic Pressure/Working Pressure

　　（1）定义：消防给水系统管网内水在流动时，管道某一点的压力。此时系统处于工作状态（即灭火时或测试放水时）。

　　(1) Definition: The pressure at a certain point in the pipeline when water flows in the fire water supply system network. At this time, the system is in working condition (i.e. during fire extinguishing or testing water release).

　　（2）主要规范依据：同上。在实际应用中，“动压”通常等同于“工作压力”。

　　(2) Main normative basis: Same as above. In practical applications, "dynamic pressure" is usually equivalent to "working pressure".

　　二、各类检查压力值归类

　　2、 Classification of pressure values for various types of inspections

　　（一）静压 (系统准工作状态)1、室内消火栓系统：最不利点消火栓栓口的静压。

　　（1） Static pressure (system quasi working state) 1. Indoor fire hydrant system: static pressure at the most unfavorable point of the fire hydrant mouth.

　　2、自动喷淋系统：管网末端的静压。

　　2. Automatic sprinkler system: static pressure at the end of the pipe network.

　　3、屋顶试验消火栓：栓口的静压。

　　3. Roof test fire hydrant: static pressure at the hydrant mouth.

　　4、消防水泵：进口的静压。

　　4. Fire pump: static pressure at the inlet.

　　5、稳压装置：进口的静压，以及设定的启泵、停泵压力值。

　　5. Voltage stabilizing device: The static pressure at the inlet, as well as the set starting and stopping pressure values for the pump.

　　6、湿式报警阀组：系统侧与供水侧的静压差。

　　6. Wet alarm valve group: static pressure difference between the system side and the water supply side.

　　（二）动压 (系统工作状态)

　　（2） Dynamic pressure (system working state)

　　1、室内/室外消火栓系统：灭火时，栓口开启出水形成的压力。

　　1. Indoor/outdoor fire hydrant system: The pressure generated by the opening of the hydrant to release water during fire extinguishing.

　　2、自动喷淋系统：喷头动作后，最不利点喷头处的水压。

　　2. Automatic sprinkler system: After the nozzle is activated, the water pressure at the most unfavorable point of the nozzle is reduced.

　　3、末端试水装置：开启放水时，检测到的压力。

　　3. End water testing device: The pressure detected when opening the water discharge.

　　4、消防水泵：启动后，出口的压力。

　　4. Fire pump: The pressure at the outlet after starting.

　　5、稳压泵：运行时，出口的压力。

　　5. Pressure stabilizing pump: The pressure at the outlet during operation.

　　三、总结

　　3. Summary

　　1、判断关键：区分静压和动压，核心是看系统内的水是否在流动。未流动时为静压，流动时为动压。

　　1. The key to judgment is to distinguish between static pressure and dynamic pressure, and the core is to check whether the water in the system is flowing. When not flowing, it is static pressure, and when flowing, it is dynamic pressure.

　　2、术语注意：在规范及实际检查中，“动压”常直接以“工作压力”或“栓口/喷头压力”来表述，其内涵一致。

　　2. Terminology note: In standardization and practical inspection, "dynamic pressure" is often directly expressed as "working pressure" or "plug/nozzle pressure", and its connotation is consistent.

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