Detection method and detection instrument of anti-scratch value of reverse osmosis membrane

Abstract

The invention discloses a detection method and a detection instrument of an anti-scratch value of a reverse osmosis membrane. The detection method comprises the following steps: preparing a test sample to be detected, preparing the detection instrument, placing the test sample to be detected on a reference board of the detection instrument, enabling the test sample to be detected to do a uniform linear motion relative to a friction head and weights, then dyeing, judging the condition of the test sample according to a dyeing result, and calculating the anti-scratch value according to the totalweight of the placed weights. The detection instrument comprises a machine shell, a motor, a lead screw, the reference board and a friction block, wherein the motor and a guide rail are fixedly connected with the machine shell; the reference board is horizontally placed on the guide rail; the friction block is fixedly connected with the machine shell and is horizontally placed on the upper surfaceof the reference board; the two ends of the lead screw are connected with an output shaft of the motor and the reference board respectively. After adoption of the technical scheme provided by the invention, quantitative testing of the anti-scratch value of the reverse osmosis membrane is achieved, the operation difficulty of detection personnel is simplified, the measurement accuracy and the measurement sensitivity are improved, and defective reverse osmosis membranes entering the producing technological process are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of detection of water purification components, and in particular relates to a detection method and a detection instrument for the anti-scratch value of a reverse osmosis membrane. Background technique [0002] With the improvement of people's material living standards, people pay more and more attention to the safety of drinking water, and at the same time promote the continuous development of purification equipment and related purification treatment technologies. Among the existing purification treatment equipment, various filtration and purification membrane elements are the core of purification equipment Among them, reverse osmosis membranes and various purification equipment made of reverse osmosis membranes are widely used. For reverse osmosis membrane manufacturers, the abrasion resistance of reverse osmosis membranes is an important quality inspection index. According to the test results, it can be ju...

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no detection instrument and method that can accurately and quantitatively measure the abrasion resistance value of the reverse osmosis membrane, and the inspectors have to rely on experience to make judgments, or manually destroy the reverse osmosis membrane. After dyeing, observe the damage of the reverse osmosis membrane. If the surface damage of the reverse osmosis membrane is serious, it is judged as a defective product. If the surface damage of the reverse osmosis membrane is not obvious, it is judged as a good product. The experience requirement is very high, and the error of the test result is very large, which will easily lead to the flow of defective reverse osmosis membranes into the production process, which affects the pass rate of the production enterprise

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