Color indicator automatic titration analyzer and application method thereof

Abstract

The present invention relates to a color indicator automatic titration analyzer and an application method thereof. The analyzer is provided for detection of a pH value of an oil product, and further can be applicable for titration detection adopting a color indicator as a determination end point. The analyzer comprises a light source, a titration pool device, a liquid feeding device, a controller, and an input and output unit, wherein the titration pool device comprises a burette, a sample cup, a stirrer and a color sensor, the sample cup is provided for holding an oil product to be detected, the burette is inserted into the sample cup, and connected with the liquid feeding device, the stirrer is arranged inside the sample cup, the light source, the sample cup and the color sensor are positioned on the same optical axis, and the controller is respectively connected with the liquid feeding device, the controller, the input and output unit, and the color sensor. According to the present invention, with the pH value detection method of the analyzer, the controller is adopted to automatically control a titration process; and compared with the analyzer in the prior art, the analyzer of the present invention has advantages of stable performance, safe use, accurate measurement and the like.

Description

technical field [0001] The invention relates to a device and method for detecting the acid-base value of oil products, in particular to a color indicator automatic titration analyzer for testing the acid-base value of oil products and an application method thereof. Background technique [0002] As we all know, the current domestic and international markets pay more attention to the analysis of physical and chemical properties of oil products, which has reached a record high. The same is true for the pH value test of oil products. Whether it is lubricating oil, hydraulic oil, or engine oil, the pH value test of oil products is required. The acid value is an index indicating the acidic substances contained in the oil, and the base value is an index indicating the content of alkaline substances in the oil, both of which are one of the important quality indicators for evaluating oil products. [0003] When measuring the acid value or base value, dissolve the oil in a mixed solv...

AI Technical Summary

Problems solved by technology

[0004] 1. The labor intensity of the operators is high and the work efficiency is low

[0005] 2. The glass container cannot be sealed during the titration process, and the volatilized toxic and harmful chemical reagents will pose a certain threat to the health and safety of the experimenters

[0006] 3. The color change of the color indicator can only be judged by the operator's sense of color, but everyone's vision of color is different, so when measuring the same oil product, the measurement results will be different. big deviation

[0007] 4. The test steps are cumbersome, and it is impossible to realize the scale of automatic and batch detection

Images