Infrared diagnostic technology for industrial infrared thermometers

The early fault defects and insulation performance of electrical equipment are reliably improved, so that the preventive test and maintenance of traditional electrical equipment (preventive test is the standard introduced in the former Soviet Union in the 50s) is improved to the predictable state maintenance, which is also the direction of the development of modern electric power enterprises. Especially now, the development of large units and ultra-high voltage has put forward higher and higher requirements for the reliable operation of the power system and the stability of the power grid. With the continuous development and maturity of modern science and technology, the use of infrared condition monitoring and diagnosis technology has the characteristics of long-distance, non-contact, non-sampling, non-disintegration, and accuracy, fast and intuitive, real-time monitoring and diagnosis of most faults of electrical equipment (almost all electrical equipment can be covered by the detection of various faults).

It has attracted the attention of the power industry at home and abroad (an advanced condition maintenance system commonly used in the late 70s abroad), and has developed rapidly. The application of infrared detection technology is of great significance to improve the reliability and effectiveness of electrical equipment, improve the economic benefits of operation, and reduce maintenance costs. It is a good means to be widely promoted in the field of predictive maintenance, and it can make the maintenance level and the health level of the equipment to a higher level.

The infrared imaging detection technology can be used to carry out non-contact detection of the equipment in operation, shoot the distribution of its temperature field, measure the temperature value of any part, and diagnose various external and internal faults accordingly, with the advantages of real-time, telemetry, intuitive and quantitative temperature measurement, etc., and it is very convenient and effective to detect the operating equipment and live equipment of power plants, substations and transmission lines.

The method used by thermal imaging cameras to inspect electrical equipment is the infrared temperature recording method. Infrared temperature recording method is a new technology used in industry for non-destructive detection, testing equipment performance and mastering its operating status. Compared with traditional temperature measurement methods (such as thermocouples, wax sheets with different melting points, etc., placed on the surface or body of the analyte), the thermal imager can detect the temperature of the hot spot in real time, quantitatively, and first at a certain distance, and through scanning, it can also draw a thermal image of the temperature gradient of the equipment in operation, and it is highly sensitive and free from electromagnetic field interference, which is convenient for on-site use.

It detects thermally induced faults in electrical equipment with high resolution over a wide measuring range of -20 2000, revealing heat generation in wire joints or clamps, as well as localized hot spots in electrical equipment.

Infrared diagnostic technology for live equipment is an emerging discipline. It is a comprehensive technology that uses the heating effect of live equipment to obtain infrared radiation information emitted from the surface of the equipment by special equipment, and then judges the condition of the equipment and the nature of defects

In layman's terms, a thermal imaging camera is the transformation of the invisible infrared energy emitted by an object into a visible thermal image. The different colors on the top of the thermal image represent the different temperatures of the object being measured. By viewing the thermal image, the overall temperature distribution of the measured target can be observed, and the heating situation of the target can be studied, which provides a basis for judgment for work and research.

The thermal imaging cameras we commonly use are passive thermal imaging tests and are very safe. According to the atmospheric window, infrared rays are divided into near-infrared, short-wave infrared, medium-wave infrared, and long-wave infrared. Long-wave infrared can be observed through air, not through walls and glass, and has the advantages of all-weather imaging, non-contact temperature measurement, and smoke penetration.

If you want to know more about the principles, products and case introductions related to infrared thermal imaging cameras, or want engineers to demonstrate for free, you can find Shanghai Thermal Imaging Technology Co., Ltd., its brand "Fotric Fei Infrastructure".

Fotric has been focusing on the field of infrared thermal imaging professional temperature measurement for ten years and continues to innovate, with handheld, first-class, body temperature screening and other product lines readily available, 100+ rich product models to choose from, and 1000+ rich application cases in various subdivided industries.

The company is a high-tech enterprise, headquartered in Shanghai, China, while having offices in Beijing, Wuxi, Nanjing, Jinan, Xi'an, and distributors in more than 30 countries and regions such as North America, Europe, South Korea, Singapore, Australia, etc., and has passed the international ISO:9001 quality system certification, the United States FCC certification, and the European CE certification. At the same time, the company is committed to the intelligent innovation of thermal imaging technology, and its products are widely used in electric power, industry, steel, petrochemical, electronics, scientific research and other industries, and have been recognized by 10,000+ industrial customers such as State Grid, Sinopec, Baosteel, Huaneng, Huadian, SAIC, etc., and the strength of manufacturers is trustworthy.

Summary. 1. Steel.

The infrared thermometer is used to continuously measure the entire temperature of the recuperator and the efficiency of the heater. Measure the temperature on both sides of the plate to determine if the heating is uniform. Improve product quality.

Second, the glass industry.

Test the temperature of the furnace to ensure that the glass edge-to-edge temperature is consistent and the glass surface is flat. The result: increased product yield, improved process control, improved product consistency, and reduced downtime.

3. Plastics industry.

Blown film pressing: Precise temperature testing that ensures uniform lamination and embossing of the tension and thickness of the plastic: Infrared thermometer is used to monitor the film temperature and control the heater.

4. Heating, ventilation and refrigeration.

Make an infrared thermometer: scan the room temperature, check the pipe temperature, test the boiler temperature, and evaluate the boiler performance, monitor the supply and return air circuits.

5. Supermarkets or food processing enterprises.

Because the storage temperature of refrigerated food is generally below this range, it may spoil beyond this range. Therefore, it can be easily and quickly checked with an infrared thermometer.

Other applications include: grain processing, food processing, aquatic product processing, alcoholic beverage production enterprises, inspection and quarantine departments, etc.

Infrared temperature detection system.

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The concept, principle, and application areas of infrared temperature detection system.

To put it simply, objects with temperatures above absolute zero will radiate infrared rays to their surroundings, increasing as the temperature rises.

That's how it works.

What about applications? I can only send a limited number of messages, please be detailed.

1. Steel. The infrared thermometer can continuously measure the entire temperature of the recuperator and the efficiency of the heater. Measure the temperature on both sides of the plate to determine if the heat is evenly matched. Boost the quality of your products.

Second, the glass industry.

Test the temperature of the furnace to ensure that the glass edge-to-edge temperature is consistent and the glass surface is flat. Thus: improving the rate of finished products, improving process control, improving product consistency, and reducing downtime.

3. Plastics industry.

Blown film pressing: Accurate temperature test can confirm the tension and thickness of the plastic tung brother cavity uniform lamination and embossing treatment: make the dust fiber monitor the temperature of the film with an infrared thermometer and control the heater.

4. Heating, ventilation and refrigeration.

Make an infrared thermometer: scan the room temperature, check the pipe temperature, test the boiler temperature, and evaluate the boiler performance, monitor the supply and return air circuits.

5. Supermarkets or food processing enterprises.

Because the storage temperature of Iwashira refrigerated food is generally below the limit, it may deteriorate beyond this range. Therefore, it is possible to use an infrared thermometer to conduct a convenient and fast rough skin test liquid.

Other applications include: grain processing, food processing, aquatic product processing, alcoholic beverage production enterprises, inspection and quarantine departments, etc.

Understood, thanks.

The reason why the infrared body temperature detector occupies such an important position in the process of full resumption of work and production is because of the advantages of the infrared thermometer, which can achieve non-contact, 24-hour uninterrupted work, and the measured personnel do not need to cooperate, and the temperature is measured without feeling; The measured person completes the temperature measurement without stopping during normal walking, and the temperature measurement efficiency is significantly more than 3 times higher than that of hand-held temperature measurement.

The working principle of infrared thermometer is that in addition to the light visible to the human eye (commonly known as visible light), there are also non-visible light such as ultraviolet and infrared rays in nature. Any object in nature with a temperature higher than absolute zero (-273) radiates electromagnetic waves (infrared) outward at any time, so infrared is the most widespread electromagnetic wave in nature, and thermal infrared is not absorbed by atmospheric smoke clouds. With the rapid development of science and technology, the use of infrared is a combination of applied electronic technology and computer software and infrared technology to detect and measure thermal radiation.

The amount of heat radiated to the surface of the object, the heat-sensitive sensor obtains different heat differences, and through the processing of electronic technology and software technology, it presents images with different light and dark or color differences, which is what we usually call infrared thermal imaging; The heat on the surface of the radiation source is converted by the thermal radiation algorithm, and the conversion between the thermal image and the temperature is realized. Infrared thermometers are widely used in military, medical, engineering construction, equipment maintenance and many other fields.

Because of the principle of infrared thermometer and its advantages in practical use, it is perfectly suitable for complex application scenarios such as communities, campuses, hospitals, scenic spots, hotels, shopping malls, corporate office buildings, public service places, construction sites, etc., which are dense and need to monitor body temperature and control. In terms of epidemic prevention and control, it effectively reduces the potential risk of large-scale contact with the human body during temperature measurement, shortens the temperature measurement time of the human body, and improves the efficiency of temperature measurement. At the same time, centralized management provides real-time data support for screening and tracing suspected patients and mobile personnel, and provides a strong security guarantee for the management in the above scenarios.

Industrial and medical are the main areas of application, but the width and accuracy of temperature measurement vary from field to field. For example, to measure body temperature, the infrared thermometer used by people measures the temperature range between more than 20 degrees and more than 40 degrees, but the accuracy is average, not as good as the dot matrix thermometer. Although the dot matrix thermometer appeared later, the temperature measurement accuracy can meet the medical requirements.

Industrial infrared thermometers are used for temperature measurement in the following applications:

1. Metal production and metallurgical industry.

2. Metal processing industry.

3. Building materials, etc.

4. Temperature measurement in the glass industry.

5. Specific selection and application of temperature measurement in graphite, sapphire, silicon carbide and other new material industries gutai sensor

Industrial infrared thermometer generally has a low detection range of -20 -30, and the limit is from 200 to 1000, with a wide range of detection and low accuracy, and it is generally not easy to be better than the human body temperature.

This technology plays an important role in product quality control and monitoring, equipment fault diagnosis and safety protection, and energy conservation in the production process. In the past 20 years, the non-contact infrared thermometer has developed rapidly in technology, the performance has been continuously improved, the function has been continuously enhanced, the variety has been increasing, the scope of application has been expanding, and the market share has increased year by year. Compared with the contact temperature measurement method, infrared temperature measurement has the advantages of fast response time, non-contact, safe use and long service life.

Application of industrial infrared thermometer.

Electricity: Temperature protection and signal transmission for coal-fired power plants, gas-fired heating power plants, hydropower stations, nuclear power plants, district heating pipe networks, large power transformers, etc.

Metallurgy: aluminum mills, copper mills, steel mills, etc.

Petrochemical: oil production, pipelines, petrochemical plants, refineries.

General industry: refrigeration plants, air-conditioning plants, refrigerator factories, breweries, pharmaceutical factories, automobile factories.

Temperature element manufacturer: platinum resistance, thermocouple and compensation wire cable, temperature switch, temperature sensor manufacturer.

Transportation: Aircraft maintenance at airports, maintenance of large transportation power systems, and ocean shipping as in-service maintenance measurements.

Divided into industrial level and medical level, simply put, the category of industry is compared, -40 3500 is considered industrial, and the medical one may be more than 35 40 such a human body temperature range.

How does an infrared thermometer work, and does it measure body temperature accurately?