With the continuous development of national economy and the strengthening of consciousness of environmental protection policy and policy, more and more get the attention of people and pay attention to energy saving and emission reduction, many new technologies, new equipment and is widely used, as a non-contact infrared thermal imaging technology thermal imaging temperature measurement technology plays an important role in saving energy and reducing consumption, improve the efficiency of energy use in industrial production and manufacturing field, reduces the economic cost and environmental pollution, promote the development of green industrial production.

As a non-contact NDT technology, infrared imaging detection technology advanced optoelectronic technology, computer technology and image processing technology in a body, achieve non-contact can according to the surface thermal radiation emitted, the temperature of the measured object, generally can be realized to minus 20 ℃ ~ 2000 ℃ temperature measurement, infrared thermal imaging diagnostic test defects in electrical equipment preventive maintenance, production equipment can play an important role in energy conservation and emissions reduction applications.

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 interruption, without contact, long distance, fast and intuitively. In the manufacture of industrial production, a lot of equipment are in a state of high temperature and high pressure high speed for a long time, using the infrared thermal imager can detect equipment equipment surface temperature difference of temperature distribution, so as to identify and determine the working state of the equipment, in general, the equipment temperature causes all kinds of fault, using the thermal imager staff could help identify and eliminate the problems, to avoid accidents. In addition, overheating of equipment is also a manifestation of energy consumption, and equipment overheating caused by hidden trouble is easy to make energy consumption too much, the use of thermal imaging device to detect the overheating of equipment, can be adjusted according to the actual situation of energy consumption, improve energy efficiency. The following examples illustrate the role of infrared thermal camera in energy saving and consumption reduction in manufacturing industries:

1) Fault detection of electrical equipment, reduce power consumption

By detecting the thermal defects of electrical equipment and circuits, potential trouble spots can be found and eliminated as soon as possible, so that the excessive consumption of electric energy caused by trouble spots can be found as soon as possible, so as to reduce energy consumption and achieve the goal of energy conservation and emission reduction. Since the condition overhaul mainly depends on the condition detection and on-line monitoring of the equipment in operation, the thermal imaging monitoring system plays an important role in the safe production of power.

2) Temperature monitoring of metallurgical furnace equipment to find faults and reduce energy consumption

For high temperature equipment with thermal insulation lining, such as metallurgical blast furnace, the damage of the lining, such as lining thinning, crack, bubble, interlayer gas, cavity and fall off, makes the wall temperature of the equipment rise, which may go beyond the safe use scope, thus causing equipment damage and increase of energy consumption, and even cause safety accidents. In metallurgical industry, the infrared diagnosis technology is usually used in the following aspects in detail: high burden surface monitoring, the lining of blast furnace wall defect detection and diagnosis of blast furnace tumor diagnosis, ladle, degree of hot metal ladle lining corrosion condition monitoring, diagnosis and coburg air furnace, converter, rotary kiln, the torpedo tanker lining damage and defect diagnosis and so on.

3) The electrolytic cell production temperature monitoring, found fault to reduce unit energy consumption

Electrolytic nonferrous metals belong to high energy consumption industry, how to improve the operation efficiency and reduce the cost has always been the pain point of nonferrous metal smelting industry. Electrolytic aluminum production environment of strong corrosive environment, large magnetic field, high current, electrolyzer cell voltage, electrode voltage on-line monitoring of Yin and Yang is difficult, the traditional production monitoring measures are site using artificial patrol, touching, sprinkler way short circuit, cold plate, the scene in the workshop have acid mist in varying degrees, every one to two hours to check the anode electrolyzer tank surface conductive bus. This results in heavy on-site operation intensity but lax production quality control, strong corrosion and high current environment, which is likely to cause long-term physical injury, large number of operators, low labor productivity and increased unit power consumption. In the actual working process, the positive and negative plates of electrolytic cell in electrolytic refining may be short-circuiting and unable to be produced normally, resulting in waste of electric energy and accompanying danger. Using infrared thermography to monitor the electrolytic production process can also greatly reduce the excessive energy loss caused by short circuit between electrolytic cell poles.

4) Petrochemical production monitoring, to avoid equipment failure and energy waste

Infrared thermal imager 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 imager, due to the material and the storage devices for different material, its thermal capacity is different, the infrared thermal imager images can clearly reaction on the liquid level, avoid the oil leak or spill, is advantageous to the hidden perils in safety and energy saving oil. 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 save energy. 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 imager and measures can be taken to reduce energy waste.