Decompression gas-liquid balance measuring system

A gas-liquid balance and measurement system technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of manual syringe sampling difficulties, inaccurate data, etc., and achieve the effect of avoiding sampling difficulties

CN106442897AActive Publication Date: 2017-02-22NINGBO UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-02-22

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Abstract

A decompression gas-liquid balance measuring system is composed of a gas cylinder, a liquid phase sampling tank, a gas phase sampling tank, an adjustable power supply, a decompression and pressure stabilizing tank, a decompression buffer tank, a rotary-vane vacuum pump and a gas-liquid balance device, wherein the gas-liquid balance device is composed of a gas-liquid balance kettle, a precision mercurial thermometer, an electric heating rod and a glass condensation pipe. The decompression gas-liquid balance measuring system can perform smooth sampling under the high vacuum degree, and therefore the defect that sampling of a manual needle cylinder is difficult is overcome.
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Description

technical field

[0001] The invention relates to the field of thermodynamic data measurement, in particular to a decompression gas-liquid balance measurement system. Background technique

[0002] The gas-liquid equilibrium data are the basis of industrial distillation technology, simulation calculation, computer-aided design, physical property estimation and chemical process design improvement. With the continuous development of chemical production, the existing gas-liquid equilibrium data are far from meeting the needs. The balance data of many substances are difficult to obtain directly by theoretical calculations and must be determined by experiments. In terms of thermodynamic research, the development of new thermodynamic models and the comparison and screening of various thermodynamic models are also inseparable from a large number of accurate vapor-liquid equilibrium measured data. Due to the complexity of the vapor-liquid equilibrium system and the continuous develop...

Examples

Embodiment Construction

[0016] The following is attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 And attached Figure 5 , the present invention will be described in further detail through the embodiments.

[0017] The gas cylinder 1 is provided with a gas outlet on its upper part, and one of nitrogen, argon or helium is loaded inside it; the liquid phase sampling tank 4 and the gas phase sampling tank 9 have the same structure, and the upper part is provided with a gas port, Sample inlet, its lower part is provided with sample outlet; Adjustable power supply 7, it is provided with voltage output end; Decompression regulator tank 11, its top is provided with air inlet, air outlet and vacuum gauge 12; Decompression buffer tank 13, The upper part is provided with a first air inlet, a second air inlet, and an air outlet, and its lower part is provided with a pressure relief port; the rotary vane vacuum pump 17 is provided with an air inlet and an exhaust port; the gas-l...