Obtain viscosity online using conventional instruments
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Viscosity is measured online using conventional instruments. The instruments involved in this system include 1 torque sensor (power sensor) and 2 medium temperature sensors. Taking viscosity as an example of this quality parameter: 1. To improve the reaction efficiency within the reactor and prevent precipitation, almost all reaction reactors are equipped with mixing devices. For a given reaction setup, the torque required for mixing depends on parameters such as the viscosity of the material, temperature, density, liquid level in the reactor, and mixing speed. 2. Through detailed mechanism analysis and calculations using formulas and data, and taking into account the operating characteristics of specific reaction reactors, this online viscosity measurement system uses a rheological nonlinear model to detect viscosity in real time. The model requires only three input parameters (introducing other parameters yields little improvement in measurement accuracy and can be ignored): torque (mixing power), which indicates the work required for mixing； Stirring speed, this parameter indicates the magnitude of the shear rate ； For medium temperature, the effect of temperature on viscosity also exhibits a highly nonlinear relationship, requiring compensatory correction. The typical precision can reach ±3%. The above is a general guideline; the actual precision depends on the specific operating conditions. It is believed that this can contribute to the development of automation. What do you experts think? -
It’s too complicated; there are online viscosity meters available – why go through such trouble? ? ?
Reply to 2# hoganliu: Our online testing technology is a complete system that offers significant advantages over viscometers
Reply to 2# hoganliu: What he mentioned must be quite different from online viscometers; otherwise, he wouldn’t have gone to such lengths to explain it.
Reply to 4# tlfrabbit: Hehe, thanks for your support :handshake
Promoting it is quite difficult, and the owners can themselves determine an approximate value based on the parameters of devices such as frequency converters and thermometers; it’s sufficient to have an idea of the condition of the material – why need 3% accuracy?
I have a question: are the viscometers you use sensitive to vibrations? What is the working principle, and is there any lag?
Reply to 7# dd1213230: Hello, thank you for your reply. You’re right – viscosity analyzers are indeed very mature at present. However, ours is designed for online viscosity measurement, enabling real-time detection and feedback, thus avoiding any time lag. We have already applied for a **patent, making it a rather forward-thinking solution
Reply to 8# jun7203: Hello, thank you for your reply. Perhaps my post wasn’t expressed clearly enough – our online viscosity testing system is a complete setup, not equivalent to a viscometer. It has significant advantages over viscometers: it isn’t affected by vibrations, has strong resistance to interference, and enables real-time testing, so there is no time delay
First of all, thank you to all the experts for their responses. It seems there might be some misunderstandings regarding our technology – our system does not require sampling, as it is installed on the production line rather than being a viscosity meter available on the market as people might think. Our technology is quite innovative, and we have already applied for a **patent** for it; therefore, there is no risk of blockages in the sampling pipelines
{:1_90:} Not bad; our country’s automation technology is improving gradually