Electricity is the most important source of power for social production, among which thermal power, hydropower, wind power, and nuclear power generation all involve rotating equipment, especially thermal power generation, which has a complex system and a wide range of equipment, has extremely high requirements for the safety and stability of the system. As the main part of my country’s power generation, thermal power generation has long accounted for more than 70% of power generation. With the "carbon neutrality" and "carbon peaking" goals proposed, thermal power generation will undertake more power peaking tasks, which has higher reliability requirements on the power generation system.

The rotating equipment involved in thermal power generation includes steam turbine generators, gas turbine generators, condensate pumps, feed water pumps, circulating water pumps, primary fans, secondary fans, induced draft fans, belt conveyors, coal feeders, coal mills, and air compressors, etc.; the moving equipment involved in the conventional nuclear power generation island is similar to the steam-water system for thermal power generation; hydropower generation is mainly hydroelectric generators; wind power generation is mainly wind generators.

The above equipment has the characteristics of high value, complex structure, and important role of in the system. Once a failure occurs, it may cause major losses and even cause major safety production accidents. Freqx has sufficient knowledge base and long-term diagnosis experience for the above equipment, and can make accurate diagnosis in advance to ensure that companies are fully prepared before obvious failures occur, so that power generation companies can plan production in a targeted manner, ensure production safety, and improve production efficiency.

With the continuous advancement of China’s urbanization process, the problem of garbage siege has become increasingly prominent. Garbage incineration can quickly and steadily dissipate municipal solid waste, meet the garbage disposal requirements of "harmlessness, reduction, and resource utilization", and has broad development prospects. Garbage incineration is a part of municipal basic services and bears important responsibilities for people’s livelihood. Therefore, garbage incineration has high requirements for system stability, especially in order to complete the task of garbage disposal, garbage incineration has the special operating mode of "stopping the machine without stopping the furnace", which has more stringent requirements on the reliability of the combustion and flue gas treatment system.

The main moving equipment involved in garbage incineration includes steam turbine generators, feed water pumps, condensate pumps, circulating water pumps, primary fans, secondary fans, induced draft fans, boiler hydraulic stations, air compressors, semi-dry reaction tower atomizers, etc.

Freqx has sufficient knowledge base and long-term diagnosis experience for the above equipment, and can make accurate diagnosis in advance, so that garbage incineration companies can plan production in a targeted manner, and ensure the reliability of the combustion system and the flue gas treatment system.

The petrochemical industry is a high-risk industry. The materials involved in the production process are highly dangerous, and the probability of fire, explosion, mass death and injury accidents is high; the process technology is complex, the operating conditions are harsh, and sudden catastrophic accidents are prone to occur; large-scale equipment,, large-scale production, strong continuity, individual accidents affect overall situation; technology-intensive installations, capital-intensive, and large property losses due to accidents.

In petrochemical enterprises, the three units of oil refineries (smoke, main fan, air compressor and hydrogen compressor), the five units of fertilizer plants (air compressor, synthesis gas, ammonia compressor, CO2, raw gas or nitrogen pressure) and the three units (pyrolysis gas, ethylene, and propylene) of the ethylene plant are customarily called large units or key units.

The above-mentioned large units have the characteristics of high speed, high power, intensive technology, high price, no standby machine, and long maintenance period. In the event of equipment failure and shutdown for maintenance, the entire production plant will be completely shut down (or a substantial reduction in production), and the economic loss of the enterprise will be very serious. Usually, the direct economic loss of a large equipment accident is about one million yuan or more, and the indirect economic loss (loss of device output and loss of prevention and control of starting and stopping) is about tens of millions of yuan. Pre-judging the possible failures of the above equipment can help petrochemical companies avoid economic losses and reduce safety production risks.

The coal production process is complex. Coal production is generally divided into tunneling, mining, underground transportation, ventilation, drainage, shafts, equipment maintenance, screening and processing, and other production processes. Open-pit mine production is generally divided into stripping, dumping, transportation, line maintenance, equipment maintenance, drainage, screening and processing, and other production processes. Coal production is classified as hazardous operations. Production conditions change greatly, and are often threatened by underground natural disasters such as groundwater, fire, gas, coal dust, ground temperature, and ground pressure, and various safety accidents are prone to occur.

Coal mining, transportation, and coal washing processes are highly streamlined and mechanized. The process includes various large and complex machines such as coal shearers, belt conveyors, crushers, screening machines, etc. The working conditions are harsh and complex, and there are many transmission components (motors, gear box, roller), once damaged, it will directly lead to production interruption. The annual aging of coal mine production equipment has led to an increase in equipment maintenance costs.

According to the production characteristics of coal mining enterprises, Freqx has formulated a set of targeted solutions, which can promote the intelligent upgrade of coal mining enterprises, ensure the safety of equipment and personnel, and keep the efficient operation of production lines.

Chemical equipment is generally divided into two categories: static equipment and dynamic equipment. Static equipment refers to equipment that is at a standstill after installation and does not require power transmission during production operations. Dynamic equipment refers to rotating equipment driven by a driving machine, such as pumps, compressors, fans, motors, and forming machines, packaging machines, mixers, etc.

Pumps for chemical plants are mainly divided into three categories, namely centrifugal pumps, reciprocating pumps and rotary pumps. Centrifugal pumps account for about 80%-90% of the total process pumps; reciprocating pumps have plungers that move back and forth to replace the liquid and force the liquid out of the outlet nozzle, including piston pumps, plunger pumps (metering pumps), and diaphragms pump: Rotary pump is used to transport heavier or higher viscosity materials, such as grease, asphalt, heavy fuel oil, etc., including gear pumps, screw pumps, etc. Fans mainly include induced draft fans, blowers, etc. Compressors commonly used centrifugal compressors, reciprocating compressors, etc.

The chemical industry process is complicated, involving many types of moving equipment and frequent failures. Effective monitoring of key equipment in the process, fully understanding the status of the equipment, and formulating effective maintenance plans can avoid unplanned shutdowns in production and reduce various losses. Freqx has sufficient knowledge base and long-term diagnosis experience for the above typical equipment, and can make accurate diagnosis in advance.

Steel smelting is divided into four main processes: ironmaking, steelmaking, hot rolling, and cold rolling, involving multiple types of large-scale equipment. The smelting production itself has continuity requirements. Once the key equipment fails, it will cause unplanned downtime in the entire production line., causing major economic losses. The environment of the smelting production workshop is also relatively harsh, and manual inspections are difficult. Once the moving equipment fails, it is easy to cause safety accidents.

For blast furnaces, converters, electric furnaces and other supporting motors, gearbox equipment, rolling mill equipment involved in the smelting process, Freqx can provide an effective early diagnosis solution to ensure the good operation of the equipment, greatly reduce the accidental shutdown time of the steel smelting production process., improve production line efficiency and ensure production safety.

The water treatment field involves a very wide range of applications, constituting a huge industrial application. There is many key equipment involved in the water treatment system. If a failure occurs, it will directly affect normal production, bring direct losses to water treatment enterprises, and indirect losses to related users.

Water treatment equipment can be divided into sewage treatment equipment, raw water treatment equipment, water purification equipment, filtration equipment, ultra-pure water equipment, etc., involving clean water transfer pumps, vertical surface aerators, aeration tank induced fans, sludge pumps, sewage pumps, sludge mixers, sludge discharge pumps, reverse osmosis high-pressure pumps, reverse osmosis circulating pumps and other moving equipment.

The above equipment is prone to failures such as bearing damage, rotor misalignment, rotor imbalance, impeller wear, gear damage, etc. Long-term and accurate condition monitoring and predictive maintenance of key equipment in the water treatment system are of great significance to improve the safety and stability of the water treatment system.