Device for assisting in installation of water depth monitoring pressure sensor

Abstract

The invention discloses a device for assisting in installation of a water depth monitoring pressure sensor. The device comprises a supporting rod and a supporting plate, the supporting plate is arranged on the supporting rod, an installation structure for installing a pressure sensor probe is arranged on the supporting rod and / or the supporting plate, the supporting plate can be closely fitted on deposition, and the pressure sensor probe can be positioned at the position parallel and level to or slightly higher than the surface of the deposition by the installation structure. According to the device, the supporting plate can be closely fitted on the deposition, the pressure sensor probe can be positioned at the position parallel and level to or slightly higher than the surface of the deposition by the installation structure, so that the deposition cannot cover the pressure sensor, the pressure sensor probe cannot be flushed in an inclined state by water flow, and the device is simple in structure, convenient to operate and low in manufacture and use cost.

Description

technical field [0001] The invention relates to a technology for monitoring the water depth of municipal drainage pipes, in particular to a device for assisting the installation of a water depth monitoring pressure sensor. Background technique [0002] Urban drainage pipes are the "lifeline" of the city, responsible for collecting and transferring domestic sewage, industrial wastewater, rainwater, snowmelt and other tasks, and are important infrastructure to ensure the healthy and safe operation of the city. With the acceleration of my country's urbanization process, in recent years, cities around the world have built a large number of drainage pipe networks. According to preliminary statistics, cities above the county level have built about 370,000 kilometers of municipal drainage pipe networks, and drainage pipes that have been in operation for more than five years The canal is about 250,000 kilometers long. Due to the influx of surface garbage and domestic and production d...

AI Technical Summary

Problems solved by technology

Compared with the empirical judgment method and the simple rod-insertion sensing method, the theoretical accuracy of the ultrasonic equipment monitoring method is higher, but due to the interference of the field environment in actual monitoring, there are still large errors in the monitoring value. Point-based measurement is easy to cause errors; second, the bottom elevation is calculated by measuring the distance from the bottom of the well to the surface of the well through the insertion rod, and then combined with the conversion of the elevation of the well surface. Due to the complexity of the sediment at the bottom of the well, the insertion rod is difficult to be accurate Monitoring, the error is relatively large; third, the acoustic signal of the ultrasonic transmitter is affected by the fluctuation of the water surface, and the accuracy is not high

[0007] The pressure sensor is installed at the bottom of the well, and different water depths will produce different pressures on the sensor, so that the water depth in the drainage pipe can be directly monitored without multiple measurement conversions, and the influence of water surface fluctuations and sediment conditions is avoided, thereby avoiding The disadvantages of the ultrasonic method are eliminated, and its accuracy is high. However, if the pressure sensor is directly installed at the bottom of the well, it is easy to cause the pressure sensor probe to be covered by sediment or washed away by the water flow, resulting in inaccurate monitoring or damage to the probe.

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