Expanded type liquid filter utensil

Abstract

The invention discloses an expanded type liquid filter utensil. A filter sheet is arranged in the middle of the filter utensil; an inlet is arranged at the upper end of the filter utensil; an outlet is arranged at the lower end of the filter utensil; to-be-filtered liquid enters into the filter utensil from the inlet and flows out from the outlet after being filtered by the filter sheet; the filter utensil comprises a chassis, an upper part and a supporting net, wherein the supporting net is horizontally supported on an inner side wall of the chassis; the filter sheet is horizontally paved on the supporting net; and the edge of the filter sheet is hermetically clamped between the chassis and the upper part of the filter utensil. According to the expanded type liquid filter utensil, a piece of filtering paper is horizontally paved on the supporting net; the completely expanded filtering paper is utilized to filter; the use ratio of the filtering paper almost achieves 100%; the filtering speed is high; the filtering efficiency is high; besides, the to-be-filtered liquid is contained in the filter utensil; the volume of the once poured liquid is unlimited by the size of the filtering paper; and the operation is convenient.

Description

Technical field [0001] The invention involves a liquid separation device, which specifically involves a filter device for a laboratory. Background technique [0002] The funnel filtering method is widely used in the field of chemical analysis, and it is a necessary step in many chemical analysis projects.The traditional funnel filtration method is to fold the circular filter paper into a funnel shape and put it in a glass funnel for filtering. The liquid to be filtered into the filtering paper through the glass rod is filtered by the liquid itself as the power. [0003] There are the following disadvantages: 1) The effective filtration area only accounts for a small part of the filter paper. The use of filter paper is low and the filtration efficiency is low; 2) When the liquid in the funnel of the funnel paper is getting less and less, the power decreases immediately.The filtration speed will become slower and slower; 3) When the negative pressure is used to accelerate the filtr...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned funnel filtration method has the following disadvantages: 1) The effective filtration area only accounts for a small part of the filter paper, the utilization rate of the filter paper is low, and the filtration efficiency is low; 2) When the liquid in the funnel-shaped filter paper decreases, the power decreases immediately, The filtration speed will become slower and slower; 3) When negative pressure is used to accelerate the filtration, the top of the paper funnel is easy to penetrate due to excessive force; 4) Since the filter paper folded into a funnel shape is used for filtration, its filtration volume is limited by the size of the filter paper Limitation, generally can not dump all the liquid to be filtered at one time

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