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发明公开
CN109610552A 一种城市挖掘安全施工监测装置 无效 - 驳回 转让

一种城市挖掘安全施工监测装置
摘要：
本发明提出的一种城市挖掘安全施工监测装置，包括：气体采集盒、安装盒、风机和甲烷探测仪；气体采集盒上设有多个进风口和一个出风口，安装盒与气体采集盒拆卸连接，风机和甲烷探测仪均安装在安装盒内，风机的输入口与出风口连通，风机的输出口与甲烷探测仪的气体输入口连通。本发明中，通过多个进风口采集空气并混合后进行甲烷分析，风机设置在出风口处，有利于保证多个进风口空气流速的均衡，从而保证从不同方向采集的空气的均匀混合，有利于避免由于采集的安全空气过多导致某一个方向采集到的甲烷被过度稀释从而造成的甲烷检测错误的发生。
摘要（英）：

The invention provides an urban excavation safety construction monitoring device. The urban excavation safety construction monitoring device comprises a gas collecting box, a mounting box, a fan and amethane detector. A plurality of air inlets and an air outlet are formed in the gas collecting box. The mounting box is detachably connected with the gas collecting box. The fan and the methane detector are installed in the mounting box. An input port of the fan communicates with the air outlet, and an output port of the fan communicates with a gas input port of the methane detector. According tothe urban excavation safety construction monitoring device, air is collected through the plurality of air inlets and mixed and is then subjected to methane analysis; the fan is arranged at the air outlet, so that the air flow speeds of the plurality of air inlets can be balanced, uniform mixing of the air collected from different directions can be guaranteed, and methane detection errors caused by excessive dilution, caused by too much collected safety air, of methane collected in some direction can be avoided.

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