Dust monitoring device for construction supervision field
A monitoring device, dust technology, applied in measurement devices, suspension and porous material analysis, particle suspension analysis, etc., can solve the problems of deviation, dust concentration cannot be monitored, long replacement time, etc., to improve reliability and increase attention degree, the effect of ensuring continuity
Active Publication Date: 2019-04-19
温州佳旭建设监理咨询有限公司
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Problems solved by technology
[0006] Due to the continuous monitoring of the dust monitoring device, in the actual detection process, the dust concentration often appears to be seriously deviated from the actual dust concentration. Alternate equipment for monitoring, even if an alternative equipment is found, the replacement time will be longer, resulting in long-term dust concentration cannot be monitored
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[0040] refer to figure 1 , is a dust monitoring device used in construction supervision sites disclosed by the present invention, comprising a housing 1, a detection chamber 2 disposed inside the housing 1, a side disposed in the housing 1 and capable of emitting dust into the detection chamber 2 A laser emitting device 3 for two laser beams, and a laser receiving device 4 arranged on the other side of the housing 1 and capable of receiving the laser beams respectively. The laser emitting device 3 emits two laser beams, and the two laser beams enter the detection chamber 2 and irradiate on the dust-laden airflow. The scattered light generated by the two laser beams is gathered and received by the laser receiving device 4 respectively, and the optical signal is converted by photoelectric conversion. It is converted into an electrical signal and processed by the average calculation method to finally obtain the measured value.
[0041] Specifically, the housing 1 has a rectangul...
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The invention relates to a dust monitoring device for construction supervision field. The dust monitoring device comprises the components of a housing, a sampling pump, a first detecting chamber and asecond detecting chamber which are intercommunicated and have tubular structures, a laser emitting device for emitting two laser beams, and two laser receiving devices. The two laser receiving devices respectively receive the laser beams from the first detecting chamber and the second detecting chamber, and perform processing through a signal processing device. The dust monitoring device has advantages of measuring the dust concentration by means of two channels, preventing misleading monitoring caused by single monitoring, furthermore preventing monitoring delay caused by failure of one monitoring channel, and improving accuracy and safety in online dust monitoring.
Description
technical field [0001] The invention relates to the technical field of construction dust monitoring, in particular to a dust monitoring device used in construction supervision sites. Background technique [0002] At present, construction sites generally need to monitor dust, and dust online monitoring devices are usually used to monitor the dust concentration on construction sites in real time. [0003] The existing Chinese utility model patent whose authorized notification number is CN206531760U can be referred to, which discloses a dust concentration sensing device, including a housing, a fan installed in the housing, a measuring chamber, and an optoelectronic measuring chamber vertically connected to the measuring chamber. , It also includes a sampling air inlet at the same level as the measurement room. The two ends of the sampling air inlet are tapered and a laser emitting tube is installed inside, and the dust concentration is measured by infrared laser scattering away...
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IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 蒋小刚陈邦锡林小美
Owner 温州佳旭建设监理咨询有限公司