Filter paper damage-preventing stable vacuum filtration device

Abstract

The invention discloses a filter paper damage-preventing stable vacuum filtration device. The device is characterized by comprising an upper filtering cup, a lower liquid storage bottle, a filtering connector, a stabilizing and positioning clamping sleeve, a filter paper fixing ring, filter paper, a rubber pipe, a gas check clamp, a positioning platform and a suction filter device, wherein the filtering connector is installed on the lower liquid storage bottle, the upper filtering cup is installed on the lower liquid storage bottle through the stabilizing and positioning clamping sleeve, the filtering paper fixing ring is installed at a cup rim position of the upper filtering cup, the filtering paper is installed in the filtering paper fixing ring, the lower liquid storage bottle is fixedly installed on the positioning platform, a suction filtering nozzle is arranged on the filtering connector, one end of the rubber pipe is installed on the suction filtering nozzle on the filtering connector, the other end of the rubber pipe is installed on the suction filter device, and the gas check clamp is installed on the rubber pipe. According to the filter paper damage-preventing stable vacuum filtration device, by arranging the filtering connector, the stabilizing and positioning clamping sleeve, the filtering paper fixing ring and the positioning platform, the overall sealing propertyis good, the stability is good, filtering paper damage is effectively prevented, filtering paper or filtering membrane replacement is fast, and the filtering effect is good.

Description

technical field [0001] The invention relates to the technical field of experimental detection of solid impurities and liquid separation, and specifically belongs to a filter paper breakage-proof and stable vacuum filtration device. Background technique [0002] In many kinds of experimental testing, small-diameter metal thin-walled pipe processing, measuring the impurity content in the inner wall of the pipe, and scientific and technological experimental research, it is necessary to use a suction filter to separate solid impurity substances and liquid substances to meet actual requirements. Common suction filtration devices have the following problems in actual use: 1. When filter paper is used for filtration, the filter paper has no fixed positioning as a whole, the stability is poor, and it is easy to move; 2. The filter paper is often damaged during the suction filtration process, resulting in the entire The solid and liquid separation process fails; 3. The upper filter c...

AI Technical Summary

Problems solved by technology

Common suction filtration devices have the following problems in actual use: 1. When filter paper is used for filtration, the filter paper has no fixed positioning as a whole, the stability is poor, and it is easy to move; 2. The filter paper is often damaged during the suction filtration process, resulting in the entire The solid and liquid separation process fails; 3. The upper filter cup, lower liquid storage bottle and filter joint are usually clamped and fixed by clamps, while the lower liquid storage bottle is placed directly on the operating table, the overall stability of the device is poor during use, and the lower storage The liquid bottle is easy to tilt or tip over, and the upper filter cup, lower liquid storage bottle and filter joint are easy to move and have poor sealing

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