China long pipeline pipe fittings.
May 04, 2018
Company successfully completed the low temperature (45 ℃) with D1422x1219X80 (x1219 1422 mm diameter, grade X80 steel) t test and stress test of water pressure blasting, marks the low temperature, high pressure, large diameter pipe fittings, successful development filled the blank in the field of the type of pipe fittings research and development in our country. New products represent our country long-distance pipeline system fitting to the highest level of equipment manufacturing, will be applied to the construction of the east gas pipeline project between China and Russia, cold area pipeline construction to lay the foundation for the future.
Between China and the east (black - long) along the pipeline in heilongjiang province, jilin province cold area, extreme minimum temperature of 48.1 ℃. Because of the long and cold winter, if station pipeline heat preservation heat tracing measures, not only high energy consumption, and the inspection and maintenance workload is big, therefore, no heat preservation heat tracing technology was used in station - 45 ℃ temperature is reached with the design of pipe fittings. At present domestic pipe fittings (tee) products can't cover - 45 ℃, unable to meet the demand of the construction of the eastern route between China and Russia, and foreign X80 pipe in the design temperature is not successful application of precedent. , therefore, it is necessary for China and Russia pipe fittings (tee) for the east building of material composition, processing and manufacturing, welding technology and quality control methods, developed to meet the china-russia eastern design conditions of pipe fittings (tee) products.
Founded in 2016, the company team, pipeline design institute joint unit within five system advantage to carry out the "sino-russian eastern station in low temperature environment (- 45 °) developed using D1422x1219X80 tee" joint-stock company, focus on conducting D1422x1219X80 tee product research.
According to the deputy long, petroleum engineering construction industry to master design, pipeline design institute wen-wei zhang, vice President of the introduction, the research of failure mechanism of brittle fracture under low temperature environment fittings to prevent brittle fracture, analyzing the control principle of puts forward the scientific and reasonable preventing pipe control index of the brittle fracture, successively establishment standard 6 department; The material composition, processing and manufacturing, welding technology and quality control methods of pipe fittings are studied. Carry out 2 rounds of industrial trial, hydraulic blasting test and stress test. Successfully developed the yard low temperature (45 ℃) with D1422X80 tee new products.
The topic research results for the smooth implementation of the east gas pipeline project between China and Russia has provided the technical support and material support, promote the group company in low temperature, high pressure, large diameter pipeline construction in the field of innovation ability. (after)
