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The H855 compressor unit is a natural gas pipeline compressor produced by Shengu for the first phase of the West-East Gas Pipeline Project at Dingyuan station, and is the core equipment for the power supply unit of natural gas pipelines. The variable efficiency of the whole unit is as high as 87%, the design pressure of the outlet is as high as 126.5 atmospheres, and it is the largest tube type pipeline compressor with the highest pressure of sinking drums. It is also the first product of the sunken drum to directly install dry gas seals for mechanical operation tests.
As long-distance compressors have high technical specifications and are difficult to develop, China has been relying on imports before. In order to end the long-term control of the situation of the people, the country proposed to achieve the goal of domestic production of long-distance compressor equipment in the West-East Gas Transmission Project. Shengu adopts a method of co-production with GE New Billon Company, develops long-distance pipeline compressors at a high starting point, rapidly absorbs and transforms foreign advanced technology, and successfully produces the rotor and stator components of the unit and operates in machinery. The test passed a test, making this key technology breakthrough. The successful commissioning of this unit not only provided technical support for China's entry into the long-distance pipeline compressor manufacturing sector, but also laid a solid foundation for the domestic production of long-distance pipeline compressors, and it is of great significance for the overall progress of large-scale compressor manufacturing technology.
On December 2, the Shenyang Blower Group reported that the first domestic long-distance pipeline compressor unit (H855) was successfully tested in Shenyang. The test results show that the highest amplitude of the compressor is only 13μm, which meets the standard of high quality products. This means that China has the ability to independently design and develop long-distance pipeline compressors, and has ended the history of not being able to manufacture long-distance pipeline compressors.