Sample pumping and filtering apparatus

Abstract

The invention discloses a sample pumping and filtering apparatus, which is used for providing a sample pumping and filtering apparatus for automatically removing silt aggregated on the filter blanket surface, and effectively solves the problems that the silts aggregate in the gaps of a filter blanket which are difficult to remove and may cause filter blanket failure. The invention comprises vacuum-pumping equipment, a liquid storage container, an adaptive floating bearing apparatus, and a sample storage cavity, a self-cleaning cavity and a vacuum-pumping cavity which are arranged in the liquid storage container from up to bottom in order; the liquid storage container is provided with an upper and a lower interlayer, and the upper interlayer separates the sample storage cavity and the self-cleaning cavity, and the lower interlayer separates the self-cleaning cavity and the vacuum-pumping cavity. The upper interlayer is provided with a first water through hole. The lower interlayer is provided with a second water through hole, which is internally provided with filter blankets. The vacuum-pumping equipment is communicated with the vacuum-pumping cavity by vacuum-pumping pipeline. The top of the lower interlayer is provided with a vertical drainage channel, and the lateral surface of the liquid storage container is provided with a water outlet channel which is communicated with the vertical drainage channel. The vertical drainage channel is provided with a cylindrical valve core.

Description

Technical field [0001] The invention relates to a filter device, in particular to a water sample suction filter device. Background technique [0002] Since people learned about the existence of marine nutrient elements, they have been paying attention to its impact on the marine environment; especially after the 1980s, marine environmental science has developed rapidly, and the research subject of marine nutrient elements has become the ocean One of the frontier "hot spots" of organic research. In the process of research on marine nutrients and trace metals, it is necessary to apply a filter device to filter the sediment in the seawater through the filter device to prevent the nutrient elements and trace metals in the sediment from interfering with the marine nutrients and the seawater. Research on trace metals. [0003] In the process of filtering sea cement sand in the current filter device, the sediment in the seawater is easy to accumulate on the surface of the filter layer, ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the filter device in the prior art in the process of filtering seawater, cannot remove the silt accumulated on the surface of the filter layer in time, which not only reduces the filtration efficiency of seawater, but also makes the silt further gather to the filter layer. It is difficult to remove the gaps in the f

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