Full-automatic siphon concentration device

Abstract

The invention discloses a full-automatic siphon concentration device. The full-automatic siphon concentration device comprises four groups of siphon devices and a bracket, wherein the bracket comprises a stainless steel plate with circular holes, a stainless steel plate with protrusions and rotary knobs for fixing the bracket, and the four groups of siphon devices are arranged in the bracket; eachsiphon device comprises a sampling bottle with an inner cover or a bottle plug, a plastic bent pipe, a floating ball with a through hole, a plankton net and an infusion flexible pipe with a flow controller, a through hole is formed in the center of the inner cover or the bottle plug, the lower end of the plastic bent pipe penetrates through the through hole and is located in the sampling bottle,the floating ball penetrates through a lower end opening of the plastic bent pipe, the diameter of a through hole of the floating ball is slightly larger than the external diameter of the lower portion of the plastic bent pipe, the plastic bent pipe can conveniently move up and down, and can also have the sealing effect accordingly, the upper end of the plastic bent pipe is fixedly communicated with the infusion flexible pipe, a U-shaped siphon channel is formed by the plastic bent pipe and the infusion flexible pipe, the lower end of the through hole of the floating ball is fixedly wrapped with the plankton net, the plankton net is located in the sampling bottle, the lower end of the plastic bent pipe is arranged in the through hole of the floating ball, and the floating ball protrudes bythe certain length of the lower end of the plastic pipe.

Description

technical field [0001] The invention belongs to the field of water body ecological detection, and relates to a water body ecological research detection device, in particular to a fully automatic siphon concentration device. Background technique [0002] In the pond ecosystem, phytoplankton as a producer is the first link (also called the first trophic level), and herbivorous zooplankton eats phytoplankton, which is the second link (also called the second trophic level), and the output of phytoplankton ( Primary productivity) determines the production of herbivorous zooplankton (secondary productivity), which in turn determines the production of small fish (tertiary productivity) and large fish (final productivity). In addition, phytoplankton is one of the important indicators for water eutrophication monitoring. It can be seen that the quantitative analysis of plankton is of great significance in scientific research and production practice. In quantitative analysis, the co...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: it is inconvenient to operate, and it is difficult to control the flow and velocity; the equipment is bulky and difficult to carry, which is not conducive to processing test samples in the field, and the number of test samples to be processed is also very limited

[0003] Patent document CN204128885U discloses a semi-automatic siphon concentration device, which needs to manually close the valve after the liquid level drops to a specified height (generally about 5 cm from the lower end of the conical separating funnel), which cannot realize fully automatic control, and uses laser The distance measuring probe detects the liquid level, and the structure is complex

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