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E-mail
cssanlian@163.com
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Phone
15810285431
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Address
No.1 Tianfu Road, Tianhua Street, Biological and Pharmaceutical Industry Park, Daxing District, Beijing
Beijing Borui Si Optoelectronic Technology Co., Ltd
Online refractometer detection and analysis of vinyl carbonate content
Date: 2020-08-31Read: 22
The concentration control of ethylene carbonate solution is a very important control link in different production processes. Determining the target concentration range of ethylene carbonate solution and taking measures to achieve this target range can effectively optimize the production process control of the product. At present, the measurement methods are all manually sampled and analyzed in the laboratory using professional instruments, and process adjustments and controls are made based on the test results. If the concentration measurement results of ethylene carbonate solution can be obtained in real-time online, producers can adjust the production process control in a short time, achieve target interval control adjustment, and effectively control the production process and efficiency.
Borui Si online refractometer is an online concentration measurement instrument developed based on the principle of refraction. The measurement speed is fast and accurate, with an accuracy of up to 0.1%, and the measurement values maintain good linearity; Sensors are directly installed on pipes or tank walls of different diameters, and the measurement results are not affected by impurities such as material color, turbidity, bubbles, solid particles, etc., and automatically perform temperature compensation. The measurement results can directly display the mass percentage% or user-defined units. The measurement results can be output in 4-20mA to PLC or DCS, and remotely transmitted to a computer for real-time data storage, printing, traceability, and other functions. The sensor has the advantages of simple and convenient operation, low maintenance, and reliable work. It is still very accurate in environments with high temperature and corrosive gases.
Product principle introduction:
Due to the different propagation speeds of light in different media, when light is projected from one medium to another, the direction of light propagation changes. This phenomenon is called refraction of light. Since the concentration of each medium is related to the refractive index of light, in practical applications, we can determine the concentration of the medium by measuring the critical angle at which light refracts.
As shown in the figure below: The light emitted from the LED enters the sapphire prism from one side through the optical fiber and reaches the contact surface between the prism and the automotive urea solution. According to the different refractive indices of the automotive urea at the contact surface, a part of the light is total reflected to the other side of the prism, and the position of the total reflected light will change due to the change in critical angle (the critical angle will be different due to the different refractive indices of the liquid). The linear array CCD is used to accurately detect the position of the total reflected light, and each position corresponds to the refractive index.
Product advantages:
1. Factory calibration and automatic temperature compensation, directly put into use, no need for on-site calibration
2. Online continuous monitoring eliminates the need for frequent manual sampling and testing, saving a lot of manpower and financial resources
3. Eliminate manual analysis and detection errors to ensure concentration accuracy
4. Continuous measurement, rapid feedback, and improved production efficiency
5. Improve automation level and reduce labor costs
6. Standard concentration signal analog output, convenient for customers to integrate and control
7. Not affected by medium color, turbidity, viscosity, bubbles, solid particles, fiber impurities, etc
Borui Si online refractometer monitoring and analysis can achieve continuous online detection of vinyl carbonate content, eliminating the need for frequent manual sampling and laboratory testing, saving a lot of manpower and financial resources; Eliminate manual detection errors and avoid situations where concentration control is too low or too high; By continuously measuring concentration and providing rapid feedback, product quality can be improved; Improve the degree of automation, and the relevant concentration data can be connected to the central control room through networking; Not affected by bubbles, short hairs, fiber impurities, etc. in the medium; Due to the use of an automatic cleaning system, the accuracy of measurement data is ensured. Measurement data can generate real-time curves and save them, making it easy to trace historical data. The system integrates industrial networking for online communication and can be centrally controlled on the PC end of the upper computer.
