The structural features are integrated with the advanced unit design. The built-in air filter, vent valve, vent silencer and inlet guide vanes are built in the machine. The basic installation method is adopted, which greatly reduces the floor space, investment and maintenance costs. The gearbox, bearings and seals are horizontally split and easy to maintain and maintain. Compared with the vertical split structure, it can save maintenance and maintenance work time by 6 times.
Powerful PLC controller for comprehensive monitoring and protection of compressor operation. There are 42 items displayed, 14 alarm items and 10 shutdown items. The content is comprehensive, monitoring and protection are reliable, and remote operation control can be realized. With anti-surge, differential pressure ratio surge prediction and surge line drift automatic temperature compensation, it can ensure safe, stable and efficient operation under any working conditions with minimum adjustment range. These features maximize the life of the unit and greatly reduce the pressure fluctuations in the compressed air network.
High-speed shafts use tilting-tilt plain bearings with the best performance and reliability, which greatly improves the reliability of equipment operation. The newly designed new generation ternary flow back-bend impeller greatly improves compressor efficiency. All the large and small gears adopt the most sophisticated AGMAQ13 class, which improves the reliability and efficiency of equipment operation. The specially designed floating carbon ring sealing structure greatly improves the sealing effect, eliminating the need for any external sealing gas to seal, improving the reliability and efficiency of the air compressor operation, facilitating installation, and greatly saving the operation and maintenance of the equipment. cost.
Improvement measures and effects In order to improve the performance of the equipment and prolong the service life of the components, the following measures are taken to improve the expected characteristics of the ZH-type centrifugal compressor and the occurrence of the failure: the air compressor station is arranged near the production plant area, the air In order to improve the quality of the inhaled air, a SDK computer self-cleaning air filter is installed in front of the compressor suction pipe to allow the air to pass through the initial filtration before entering the compressor body for compression. Due to the adoption of the primary and secondary air filters, the dust and debris in the atmosphere are effectively filtered out, the damage of the impurity particles in the air to the compressor impeller is avoided, and the use of compressor parts such as impellers is greatly improved. life.
Modification of the sealing gas source on the ZH6-5-10 centrifugal compressor, the external gas supply of the external nitrogen bottle is changed to the reverse supply by the compressed air pipe network to achieve the purpose of ensuring the sealing gas pressure and reduce the air compressor Operating costs. The ZH10000-5 centrifugal compressor adopts a specially designed floating carbon ring sealing structure, which greatly improves the sealing effect, eliminates the need for any external sealing gas to seal, improves the reliability and efficiency of the air compressor operation, and facilitates installation. Significant savings in equipment operation and maintenance costs.
Conclusion The ZH-type centrifugal compressor has the advantages of beautiful appearance, simple structure, convenient installation and operation, flexible adjustment of pressure setting and relatively large flow. The above problems that occur during use are improved and the operation is safer and more stable. The application of the ZH-type centrifugal compressor has improved the overall equipment level of the power plant equipment and provided a reliable gas source guarantee for the annual production of 5 million tons of steel platform. Therefore, the improvement method is worth learning from domestic peer companies.
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