Pipe orifice variable plug-in type sampling instrument

A plug-in, sampler technology, applied in sampling devices and other directions, can solve problems such as cumbersome operations, inability to connect, waste management costs, etc., and achieve the effects of improving collection efficiency, reducing contact time, and reducing pressure gradients
CN103759974AInactive Publication Date: 2014-04-30INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Publication Date
2014-04-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, a sampling hose used for leading out the laminar-condition polluted water sample from the steady flow buffer pipe through a streamline water outlet and further collecting the water sample, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument provided by the invention changes the composition, the structure and the working principle of an original organic matter polluted water sample collecting device, and has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.
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Description

technical field

[0001] The invention relates to a collection device for water samples containing volatile and semi-volatile substances, in particular to a plug-in sampler with a variable diameter nozzle. Background technique

[0002] Due to the particularity of volatile and semi-volatile substances contained in water samples polluted by organic matter, the collection of samples is different from other water samples.

[0003] At present, the commonly used method of collecting water samples contaminated by organic matter is to fasten the fire hose with a hose clamp at the mouth of the pump pipe where the contaminated water sample is drawn, and then collect the sample through a four-way diversion method. The sampling components used mainly include sample collection four-way, four-way diverter, lined fire hose, hose clamps, large and small pipe joints, straight pipes, quick-connect snap rings, pressure gauges, socket-type connection towers, and pressure regulating valves , disc...

Claims

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