火灾干式报警阀主要由封闭式喷头、管网、干式报警阀、充气设备、报警装置和供水设备组成。那么消防干式报警阀的施工安装有哪些关键点呢？

The fire dry alarm valve is mainly composed of closed sprinkler, pipe network, dry alarm valve, inflation equipment, alarm device and water supply equipment. So what are the key points in the construction and installation of fire dry alarm valve?

1）干式报警阀组应安装在不结冰的地方，主要是干式报警阀组处于伺服状态时，水源侧管网充满水，干式阀系统侧是气室。为保证其气密性，一般灌满设计要求的密封水。如果干式阀的安装部位结冰，干式阀的充水部分可能会结冰，尤其是干式阀气室一侧的密封水更容易结冰，可能会影响干式阀的开启。阀门在轻型情况下，并可能导致严重的问题。干燥报警阀损坏。

1) The dry-type alarm valve group should be installed in a place free of ice, mainly because when the dry-type alarm valve group is in the servo state, the pipe network on the water source side is full of water, and the air chamber is on the dry-type valve system side. In order to ensure its air tightness, it is generally filled with sealing water required by the design. If the installation part of the dry valve freezes, the water filling part of the dry valve may freeze, especially the sealing water on the side of the dry valve chamber is more likely to freeze, which may affect the opening of the dry valve. The valve is in light condition and may cause serious problems. The drying alarm valve is damaged.

2）安装完成后，将高度为50-100mm的清水注入报警阀的气室，以保证干式报警阀的密封性，同时也防止水源一侧的压力水由于水压波动而进入气室。规定的50-100mm的低高度主要是为了保证密封的下限，高水位线不得影响干式报警阀（差压式）的动作灵敏度。

2) After installation, inject clean water with a height of 50-100mm into the air chamber of the alarm valve to ensure the tightness of the dry alarm valve and prevent the pressure water on the water source side from entering the air chamber due to water pressure fluctuation. The specified low height of 50-100mm is mainly to ensure the lower limit of sealing, and the high water level shall not affect the action sensitivity of dry-type alarm valve (differential pressure type).

3）充气连接管接口应在报警阀气室充水位以上，充气连接管直径不小于15mm，并安装止回阀和截止阀在充气连接管上。检验数量：全检。检验方法：观察检验和尺检验。

3) The interface of the inflation connecting pipe should be above the filling level of the air chamber of the alarm valve, the diameter of the inflation connecting pipe should not be less than 15mm, and the check valve and stop valve should be installed on the inflation connecting pipe. Inspection quantity: full inspection. Inspection method: observation inspection and ruler inspection.

4)气源设备的安装应符合设计要求和现行相关标准。

4) The installation of gas supply equipment shall comply with the design requirements and current relevant national standards.

5）气源与报警阀之间应安装排气阀。应靠近报警阀。检查次数：所有检查。检查方法：观察检查。

5) A safety vent valve shall be installed between the air source and the alarm valve. It should be close to the alarm valve. Inspection times: all inspections. Inspection method: observation inspection.

6）加速器应安装在报警阀附近，并应有防止水进入加速器的措施。检查次数：所有检查。检查方法；观察检查。

6) The accelerator shall be installed near the alarm valve, and measures shall be taken to prevent water from entering the accelerator. Inspection times: all inspections. Inspection method; Observe and check.

7）低压预报警装置应安装在配水主管的一侧。检查次数：所有检查。检查方法：观察检查。

7) The low pressure pre alarm device shall be installed on one side of the water distribution main pipe. Inspection times: all inspections. Inspection method: observation inspection.

8)川消小编认为压力表应安装在以下部位：报警阀的充水侧和充气侧；在空压机的气泵和储气罐上；在加速器上。检查次数：所有检查。检查方法：观察检查。

8) Chuanxiao Xiaobian believes that the pressure gauge should be installed at the following parts: the water filling side and the gas filling side of the alarm valve; On the air pump and air storage tank of the air compressor; On the accelerator. Inspection times: all inspections. Inspection method: observation inspection.

9）管网充气压力应符合设计要求。

9) The inflation pressure of the pipe network shall meet the design requirements.

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