A process gas chromatograph

Abstract

The invention relates to a process gas chromatograph. The process gas chromatograph comprises an alloy substrate, a master controller, a chromatographic detection module, an automatic sampler, a flow distribution module, a chromatographic separation module, a data acquisition module, a time control module, a power module, a gas impurity detection device, a gas leakage detection device, an alarm device, an automatic stop module and a protection shell. The process gas chromatograph can complete multi-path gas phase detection automatically; besides, the process gas chromatograph has good high temperature resistance and corrosion resistance and can be reliably used for a long time; furthermore, result errors caused when impurities are mixed into gas samples can be completely eliminated, further losses of production and study can be avoided, and gas leakage can be found in time once happening; the process gas chromatograph is simple in structure, wide in measurement range and high in response speed and has universality and response sensitivity to many substances, and response signals are stable.

Description

technical field [0001] The invention relates to the field of gas chromatographs, in particular to a process gas chromatograph. Background technique [0002] Gas chromatography is widely used in petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection and so on. In addition to being used for quantitative and qualitative analysis, it can also determine the physical and chemical constants such as the distribution coefficient, activity coefficient, molecular weight and specific surface area of ​​the sample on the stationary phase. It is an instrument for analyzing and detecting the components in the mixed gas. . The existing gas chromatograph has low sensitivity, and the response signal is greatly affected by the number of carbon atoms in the measured substance, and the response is relatively slow. The analysis of samples requires a specific analysis method, and it takes a lot of time and effort of high-quality personnel to confi...

AI Technical Summary

Problems solved by technology

Moreover, it is the same process every time. At this time, high-quality personnel are wasted in some repetitive operations, which reduces the utilization rate of high-quality personnel.

In the above analysis process, the traditional method is manual operation, the operator cannot leave the instrument, and it takes a long time to complete an analysis. The operator is waiting most of the time, which seriously reduces the productivity.

[0003] In addition, the base and protective device of the process gas chromatograph in the prior art are made of ordinary hard plastic or ordinary metal. During long-term work, the entire device is scrapped because it cannot cope with the damage caused by high temperature and corrosive samples, resulting in great loss

Moreover, none of the process gas chromatographs in the prior art is equipped with an emergency treatment plan when objective conditions change, such as gas mixed with impurities or dangerous gas leaks, which is not only prone to erroneous data, leading to heavy losses in production, but also may cause personal injury to operators.