A device for detecting pollutants in drinking water sources based on gradient sampling

Abstract

The invention discloses a device for detecting pollutants in drinking water sources based on gradient sampling, and belongs to the technical field of water quality detection equipment. It mainly includes detection body, gradient sampling element, water sample holding element, water sample detection element, controller, power supply, gradient sampling element includes mounting frame, gradient sampling head, sampling head extrusion sleeve, gradient sampling head includes extrusion water cover , filter cover, support horizontal and vertical rods, water-absorbing sponge balls, and propellers; by controlling different numbers of micro-drive motors on each gradient sampling head to work, the number of micro-drive motors on each gradient sampling head that is in working condition is presented. The gradient increases, so that the propeller generates a gradient-increasing driving force for each gradient sampling head to complete the sampling of water sources at different depths, so that the sampling of water sources is reliable and representative, and the accuracy of detection results is increased; the present invention has reliable sampling , accurate detection, and intelligent integration are suitable for mass promotion.

Description

technical field [0001] The invention belongs to the technical field of water quality detection equipment, in particular to a device for detecting pollutants in drinking water sources based on gradient sampling. Background technique [0002] Water is one of the most common substances on the earth. It is an important resource for the survival of all life including inorganic compounds and human beings. It is also the most important part of organisms. Water has played an important role in the evolution of life. It is a narrow sense Non-renewable, broadly renewable resources. [0003] At present, the pollution of surface water and groundwater is still relatively serious. In addition to conventional pollutants, toxic and harmful new pollutants represented by drug residues, personal care products, endocrine disruptors, and disinfection by-products are constantly being detected in drinking water sources. posed a serious threat to the safety of drinking water. The safety of drinkin...

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Problems solved by technology

[0004] However, the existing water source pollutant detection device has the following defects: 1) when sampling the water body, only the water body on the surface of the water source is sampled, and the water layers of different depths cannot be sampled and detected respectively, so that there is a large deviation in the measurement results. The measurement results are inaccurate; 2) There is no synchronization of multiple sets of sampling and testing processes, which reduces work efficiency; 3) After the testing work is completed, there is no drying element in the device, which makes the internal electrical components damp and reduces the service life of the device, etc.

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