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Xi'an Xiaxi Electronic Technology Co., Ltd
Ultra low temperature phase equilibrium tester
NegotiableUpdate on 05/06
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Overview
VLE2400 ultra-low temperature phase equilibrium tester is an ultra-low temperature gas-liquid phase equilibrium testing instrument developed based on static method, suitable for -160 The temperature range of C-room temperature and the pressure range of 0.5-5 MPa. The equipment integrates high-precision temperature control, real-time temperature and pressure monitoring, and fast online micro sampling functions, which can accurately sample from the balance kettle without disrupting the system balance. It has a temperature measurement accuracy better than; 0.02 C、 Temperature control fluctuation; 0.05 The excellent performance of C enables one click automated testing, suitable for determining gas-liquid equilibrium parameters of pure, binary, and ternary systems
Product Details
1) Product Introduction
VLE2400Ultra low temperature phase equilibrium testerIt is developed based on static methods and designed specifically for measuring gas-liquid phase equilibrium parameters under ultra-low temperature conditions. The core is to use mechanical mixing to promote the system to reach equilibrium state, and then use high-precision micro and fast online samplers to complete high-precision sampling of gas and liquid phases, effectively overcoming the technical difficulties of reasonable sampling in static analysis methods. While minimizing system equilibrium damage, it accurately reflects the true gas-liquid phase composition in the equilibrium kettle, and has the characteristics of ultra-low temperature testing ability, wide pressure measurement range, and accurate measurement. It is suitable for various binary systems/The determination of gas-liquid equilibrium parameters for ternary systems is a specialized equipment for studying phase equilibrium under high pressure, ultra-low temperature and other working conditions.
In terms of core performance,VLE2400Outstanding measurement ability：Temperature testing coverage-160°C~Room temperature, pressure range up to0.5-5 MPa(Both support customization)The temperature measurement accuracy is better than±0.02°CThe temperature control fluctuation is stable at±0.05°C;At the same time, using a specifically designed measurement system can ensure that the temperature field of the mixed sample in the equilibrium kettle is highly uniform and stable, and can also guarantee the long-term stability of the mixed system during the testing process, providing a solid guarantee for the accuracy and repeatability of the measurement results.
VLE2400Ultra low temperature phase equilibrium testerEquipped with an efficient automation control system and microsatellite sampling technology, combined with self-developed programs, it can achieve full process automation operations, including automatic temperature control, automatic pressurization, automatic sampling, and data analysis;Supporting high-precision quantitative sampling analysis with multiple injections not only shortens experimental time, but also ensures stable experimental results, further improving testing efficiency and data reliability. At the same time, the device is equipped with a * safety protection system, with built-in automatic pressure relief function to prevent pressure from exceeding the set upper eye, comprehensively ensuring experimental safety. It is suitable for testing pure, binary, and ternary systems, and can accurately obtain the temperature in equilibrium stateTPressurepLiquid phase mole fraction, gas phase mole fractionyThe four core parameters can also be expanded to obtain gas-liquid equilibrium phase diagrams, vapor pressure, boiling point and other data, meeting diverse research needs.
VLE2400Widely covering fields such as chemical engineering, petroleum, materials, and energy power, especially for basic research on ultra-low temperature fluids, storage and transportation of liquefied natural gas and liquid hydrogen media, and optimization of low-temperature energy storage systems, reliable testing tools are provided, providing strong support for basic research in scientific research institutes and technological research and development in industrial enterprises.
2) Main Features
l Ultra low temperature measurement：Low temperature can reach -160 ° C, supporting customized temperature range；
l Accurate temperature measurement:High temperature measurement accuracy± 0.02 ℃；
l Accurate pressure measurement:Using high-precision pressure sensors,Can effectively ensure the accuracy of pressure measurement；
l degree of automationHigh:It can achieve automatic temperature control, automatic temperature measurement, automatic pressure measurement, and data processing;
l Short balance time:Built in liquid-phase circulation pump, the system can quickly balance;
l Micro rapid online sampling：Install a fast online sampling system that can achieve high-precision quantitative sampling multiple times with one injection.
3) Technical parameters
l Testing principle:Static analysis method；
l pressure range：0.5~10MPa；
l Temperature range:100K~room temperature；
l Temperature measurement accuracy:superior to±0.01℃；
l Pressure measurement accuracy：0.4 % FS；
l measured value：Temperature at equilibrium stateT, pressurepLiquid phase mole fractionx*Gas phase mole fractiony*four parameters；
l Scope of application：Low boiling point pure substance, binary and ternary systems；
l data transmission：USB
4) Typical Applications
l cryogen:asR32+R1234zeBinary system orR32+R161+R1234zeStudy on the distribution of gas and liquid components in ternary systems under different temperature conditions;
l Chemical synthesis:Measurement of gas-liquid equilibrium data of the toluene propylene binary system as a synthetic raw material at different temperatures and pressures;
l Pharmaceutical Chemistry：acetonitrile-Measurement and study of gas-liquid equilibrium data of ethyl acetate under isobaric conditions.
