Gravity flow liquid sampler

Abstract

The invention relates to the technical field of fluid sampling and provides a gravity flow liquid sampler. Bottle openings of multiple sampling bottles of the sampler are upward and arrayed on a rotation disc circumferentially. A power device is used for driving the rotation disc to rotate. The top end of a liquid discharging tube is used for leading in the fluid to be acquired, and the bottom end of the liquid discharging tube is arranged above rotation locations of the sampling bottles and used for enabling the fluid to be acquired to flow into the sampling bottles. A solenoid valve is used for controlling connection and disconnection of the liquid discharging tube. By the combination of a timing controller or a weighing device with a controller, starting and stopping of the power device and opening and closing of the solenoid valve are controlled with time or weight serving as the condition, so that the liquid discharging tube enables set duration or a set increment of the fluid to be acquired to flow into each sampling bottle. Multi-sample, quantitative and automatic sampling of the fluid to be acquired are achieved, automation of sampling of the gravity flow is achieved, manpower and material resources required to be invested in sampling are decreased, safety of a sampling process is improved, the outflow process lines of samples can be reacted accurately, the step is simple, and operation is facilitated.

Description

technical field [0001] The invention relates to the technical field of fluid sampling, and in particular provides a gravity flow liquid sampler. Background technique [0002] Fluid sampling is widely used in the sampling process of gravity flow teaching, scientific research experiments and engineering monitoring. The traditional fluid sampling method is manually adopted. During the sampling process, the samples need to be numbered, collected and recorded. The operation is cumbersome, the efficiency is low, and the error is large. Moreover, it is dangerous for the sampling of some fluids that are harmful to the human body. . [0003] At present, automatic samplers mostly use pumps and other external force methods to sample liquids. Such devices are generally cumbersome, complicated to operate, and poor in practicability; in addition, sampling through external force devices such as pumps often causes damage to the fluid, and the fluid cannot be measured. Parameter informatio...

AI Technical Summary

Problems solved by technology

The traditional fluid sampling method is manually adopted. During the sampling process, the samples need to be numbered, collected and recorded. The operation is cumbersome, the efficiency is low, and the error is large. Moreover, it is dangerous for the sampling of some fluids that are harmful to the human body.

[0003] At present, automatic samplers mostly use pumps and other external force methods to sample liquids. Such devices are generally cumbersome, complicated to operate, and poor in practicability; in addition, sampling through external force devices such as pumps often causes damage to the fluid, and the fluid cannot be measured. Parameter information such as flow rate and flow velocity of the natural flow under its own gravity

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