Groundwater airbag pump sampler

HB-QN60Groundwater airbag pump sampler

1、 Introduction to groundwater airbag pump sampler instrument

HB-QN60The type airbag pump groundwater sampler is a low flow rate, low disturbance groundwater flushing and sampling equipment, suitable for various types, especiallyVOCsCollection of class pollutant samples.

HB-QN60The controller of the airbag pump groundwater sampler is equipped with a small air compressor that provides compressed air to meet the static water level requirements60Requirements for working conditions within meters. If the water level is deep, a drop pipe component can be installed to allow deeper groundwater samples to enter the airbag pump. In order to ensure low disturbance to groundwater, the airbag pump can also choose a drop probe. When the groundwater level settles too much during the sampling process, the sampling can be automatically stopped and wait for the water level to recover.

IIBackground of groundwater airbag pump sampler products

According to《HJ 1019-2019Guidelines for Sampling Techniques of Volatile Organic Compounds in Soil and Groundwater of Land Blocks "When using Beile tubes or submersible pumps to sample groundwaterVOCsEasy to evaporate, andHB-QN60The type airbag pump groundwater sampler is a low flow rate, low disturbance groundwater flushing and sampling equipment that can solve this problem.

Sampling wellhead diameter5cm~10cmGroundwater monitoring well, conventional sampling depth60Meter, it is required that the diameter of the sampling pump must be less than5cmTo ensure that the pump body can descend to the water collection layer, while also ensuring undisturbed sampling to prevent groundwater loss due to volatilization. The diameter of conventional submersible pumps is mostly in the range of10cmThe above is simply not satisfactoryHJ1019-2019Standard requirements and practical requirements. Therefore, the washing process wastes water resources. In addition, the pump body vibrates greatly, causing significant disturbance to the water body and incalculable volatilization losses. Regarding groundwaterVOCsSampling interference, disturbance, volatilization loss and other issues, usingHB-QN60The airbag pump groundwater sampler can solve such problems.

3、 Technical parameters and configuration

Controller function

The controller controls the start and stop time of the built-in portable compressor through a combination of timers. When the compressor is running, air will be injected into the airbag and inner space of the outer wall of the underground airbag pump. Air will squeeze out the liquid inside the airbag, and when the air compressor stops, the air inside the airbag will be discharged and allow the water sample to enter the airbag.

Pump body function

Compressed air; Timed opening/Close,The flexible airbag inside the squeezing pump with alternating cycles. Drain water from the pump to the ground surface, and then release air. Let the pump refill. The liquid enters and fills the pump body through the liquid inlet check valve at the bottom of the pump body under static pressure. After being filled with liquid, when compressed air enters the sealed space between the airbag and the pump housing, it squeezes the airbag and pushes the liquid out to the ground surface. Under the control of the airbag pump controller, this cycle is automatically repeated. Compressed air does not come into contact with the sample. The airbag pump can effectively prevent contact between the air driving the pump and the sample.

main controller a

battery one

Gas scroll1A (colored tube position trachea)

Water scroll1A (white PTFE tube)

Sampling head1Number (including airbag), main body diameter4.2CM, Length120CM

circulating flow310ml

Small monitoring wellhead5cm

Sampling depth60rice

Tracheal size4*6mm

Size of water outlet pipe6*10mm

Spare airbag1a

power cord1root

charger1a