Imported gas analysis equipment lacks professionals

Air separation devices are becoming more and more large-scale and specialized. The performance requirements for gas analyzers, which are important supporting devices for air separation plants, are also increasing.

In recent years, the continuous development of related industries such as steel, three major chemicals (petrochemicals, chemical fertilizers, and coal chemical) and coal-to-oil has increased the demand for industrial gases. In particular, the 72,000-grade air separation plant introduced by Baosteel was the first of its kind for large-scale gas equipment in China. In addition, eight of the world's leading gas companies have entered China one after another. They have brought a lot of technology and capital to the Chinese gas market, which has enabled domestic gas technology to develop by leaps and bounds. In the past, large-scale air separation plants of more than 40,000 grades were all dependent on imports. Now, 60,000 large-scale air separation plants have already achieved localization.

With the rapid development of gas production and the continuous improvement of the quality of gas products, the performance requirements for gas analysis instruments are also increasing. At present, the technological level of the domestic gas analysis instrument manufacturing industry is quite different from that of foreign countries. This is mainly due to the backwardness of the domestic basic industry and the relatively low level of electronic components and machining technologies. This has led instrument manufacturers to unconditionally select high-quality electronic components and machines. Processing components (such as valves, pipe connections, etc.) to assemble analytical instruments, therefore, for a long period of time, the gas analysis instruments and high-purity gas analysis instruments used in large and medium air separation plants in China are mainly imported.

At present, leaders of large and medium-sized air separation companies in China have already had some understanding of imported analytical instruments, but some managers do not fully understand how to properly support the production needs of the enterprise. Some managers even believe that only a few automatic analysis are required. Instrument is fine. “This is a big misunderstanding,” said Zhang Bingxin, chief engineer of Beijing Sesrite Technology Co., Ltd., as a large and medium-sized air separation company (or equipment), it must establish a complete system based on the actual needs of air separation production and management. Gas composition analysis monitoring system. The monitoring system includes raw material analysis, production control monitoring (online monitoring), product quality inspection and safety analysis.

It should be pointed out that the establishment of this complete gas composition monitoring system is based on the actual needs of the production of the air separation plant of this system, and it is also aimed at ensuring that the ultimate goal of the unit is achieved - that the sales of products will be profitable. If the air separation device monitoring system is incomplete or unsound, it will not only not meet the needs of the air separation production process, but will also affect the sales of the final product.

So far, domestic large and medium-sized air separation plants have purchased a large number of imported gas analysis instruments, but if we carefully analyze the application of these instruments, we will find that many of these instruments are not operating satisfactorily. It is understood that many members of the domestic air separation plant management personnel are unaware that gas analysis is a specialized technology, and it is especially difficult to understand the difficulty of trace gas analysis. They often use the analytical instrument to detect the gas sample as a point-and-shoot camera or TV set. They believe that simply obtaining a precise data can be a misunderstanding.

It should be pointed out that the instrument as a tool, whether it plays its due role and the size of its effect depends entirely on the quality of the personnel who operate it. Can not grasp the correct use of methods, the data obtained is wrong. However, some people blindly believe that the data given by the instrument does not carry out a careful analysis of the results of each test, and do not analyze the error of the measurement results and study, so that even the best instrument equipment can not play a normal function.

At this stage, as the air separation devices become larger and larger, more and more gas analysis instruments are introduced. In order to do a good job of the application of analytical instruments and ensure the normal operation of analytical instruments, it is necessary to cultivate instruments with certain skills and practical experience. Analytical technicians.