December 23, 2024

Instrumentation Industry New Challenge Stability and Reliability

In recent years, with the development of industrial automation and instrumentation industry, China's industrial production level has been greatly improved. The development of automation not only saves labor costs for enterprises, but also enhances the economic benefits. It also plays an indispensable role in the public environment and urbanization. At the same time, however, such an issue as "industrial disaster" has entered the public's view with the popularity of automation. For example, the world's top ten industrial disasters: "Bophar gas leaks in India", "Exxon Valdez fuel leakage", "Chernobyl nuclear power plant explosion" and so on. The recent Shanghai subway accident, the high-speed rail accident, and the oil spill in Conoco all sounded the alarm for us.
Shanghai Metro Line 10 started manual dispatching due to signal equipment failure, and a rear-end collision with two cars occurred at 14:51, resulting in 61 hospitalizations for 271 casualties.
While interrogating industrial safety, people pose new questions about the stability and reliability of the products they use. Instrumentation as an integral part of the automation industry also encountered the same problem. Among them, functional safety technology and safety instrumentation are new technologies developed internationally recently. The purpose is to prevent industrial facilities from generating abnormal accidents that endanger the safety of people and equipment. This technology and related instrument products have gained widespread attention from users. China's large-scale petrochemical engineering construction projects have stipulated that functional safety assessment must be conducted in advance. The sudden occurrence of accidents in China's industrial facilities is relatively frequent. Research on safety instrumentation technology is of great significance.
The key developments in this area include the development and application of control systems, temperature transmitters, pressure/differential pressure transmitters, electric actuators/valve positioners that achieve the overall safety level SIL3, as well as safety instrument system evaluations. Development of technical method research and evaluation tools.
However, it is regrettable that most of the products in China's instrumentation industry belong to the mid-to-low technology level, and the key indicators such as reliability and stability have not yet reached the requirements. Taking test instruments as an example, high-end, large-scale equipment and equipment are almost all dependent on imports, while foreign companies also account for more than 60% of domestic mid-range products and many key parts and components markets.
Recently, the reporter interviewed Mr. Zhu Yuji, general manager of Shanghai Automation Instrumentation Co., Ltd. and chairman of the Shanghai Instrument and Meter Industry Association. He mentioned that the gap between our products and foreign countries is that our products are not inferior to advanced technologies. But the key lies in the stability and reliability of the product. The use of foreign products is basically stable, and it won't ups and downs. Users can use them more safely. Domestic products are relatively poor in this respect, and their stability and reliability are not enough. Also caused the industry's "products do not applaud" situation.
From this we can see that although China's technical indicators are not much different from similar foreign products, the stability and reliability problems have not been solved for a long time and will become a serious obstacle to the development of China's test instrument industry. However, stability and reliability are a long-term accumulation process. This requires support in many aspects. The first is the standardized process control, and the cost and personnel required for the construction of process control are high, but the scale of the current manufacturer is not enough; Requires a complete supply chain system; in the end, it also requires core technologies. At present, many of the core technologies of instrument manufacturers, including software and hardware, are purchased from abroad and undergo secondary development. Therefore, it is difficult to ensure that the products produced are not subject to a certain bug. The influence causes the instrument to be unstable. Therefore, this will be a new challenge for the development of China's instrumentation industry.

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