Due to the high temperature and high pressure environment of the petrochemical industry, and the inflammable and explosive risk of the petrochemical production itself, the maintenance of the petrochemical industry is very important and necessary. Because of many important devices are working under high temperature and high pressure conditions, and there are a lot of petrochemical factory within complex piping, reactor, chimney, furnace tube, cement rotary kiln, the freezer, the valve flange top, etc., and for the most is the process cycle run long, plus petrochemical inflammable and explosive production, industrial production has always attached great importance to the production process, strict monitoring of security and reliability of the device itself inspection and production maintenance regularly, but the equipment running all the year round, inspectors found the problem very hard, accumulate over a long period, for a long time are prone to accidents. How to monitor the equipment continuously in real time and realize efficient and safe nondestructive testing?

As a non-destructive testing technology, infrared thermal camera can be used to realize real-time acquisition of wellsite production data, electronic well patrol, hazard identification, risk early warning, intelligent diagnosis of oil well conditions, etc. Infrared thermal camera can be used in security monitoring, oil leak due to corrosion of tank, ground subsidence, flange damage, such as liquid level measuring failure causes of oil spillage have been is the main oil depot fire safety hidden trouble, meet flame extremely flammable, detected by infrared thermal camera, due to the material and the storage devices for different material, its thermal capacity is different, the infrared thermal camera images can clearly reaction on the liquid level, also is a kind of simple way to detect the liquid level, avoid many potential risks. In the production process of petrochemical industry, many pipelines, such as steam, hot water and various industrial solutions, are usually covered with various insulation materials to ensure their energy saving requirements. However, as these pipelines are usually installed on the upper part of the plant or outside, there is no maintenance measures. As the moisture layer or even the wall of the pipe breaks or thins over time, hot spots can be easily identified by the thermal camera and measures can be taken to reduce energy waste and ensure the correct process temperature. In conclusion, so much of the equipment in petrochemical enterprises, especially the most often under high temperature and high pressure, corrosion and oxidation of the worst cases, at the same time it has a long working period, the characteristics of the maintenance period, especially once tend to run long uninterrupted, we often need to master all the equipment running status, at the same time to discharge a maintenance plan according to actual condition, the infrared thermal camera it will be a good choice.

In addition, infrared imaging technology, as a new technology, has incomparable superiority in detecting the running state of oil tank. Infrared imaging is based on the thermal state distribution of the equipment to diagnose the operating state of the equipment. It has the capability of imaging the thermal state of the equipment without stopping operation, without contact, far distance, fast and intuitively. Since the thermal image of the storage tank is the real description of the thermal state and temperature distribution of the equipment under the operation state, the normal thermal distribution of the storage tank under the operation state is an important feature to judge whether the equipment is in good condition. So the infrared imaging technology can diagnose the equipment state and its hidden defects by analyzing the thermal image of the storage tank.