-
High-pressure Large-diameter Pipe Fittings
Posted: 11/22/2023 10:57:41 Hits: 11High-pressure large-diameter pipe fittings play a crucial role in various industries, ensuring the safe and efficient transport of fluids and gases. These pipe fittings are designed to withstand high pressures, making them essential for applications such as oil and gas pipelines, chemical processing... -
Measures for Temperature Rise of the Fire Pipe Unions (Part Two)
Posted: 10/19/2023 03:19:56 Hits: 183. Cause analysis (1) According to the design and drawing requirements, the generator fire ring pipe and joints are made from stainless steel. However, the internal structure and composition of the ring pipe joints have changed in the manufacturing process, making them magnetic. When the unit is running,... -
Measures for Temperature Rise of the Fire Pipe Unions (Part One)
Posted: 09/12/2023 03:32:41 Hits: 13Abstract: The fire protection system of a hydropower station mainly consists of a gas fire extinguishing system, a water spray fire extinguishing system, and a fire monitoring and alarm system. The fire protection system of a hydropower station plays a very important role in ensuring the safe and stable... -
Inspection of Hydrogen Pipelines in Refining and Chemical Hydrogen Production Units
Posted: 08/23/2023 07:50:47 Hits: 313. Research on the failure 3.1 Design aspects All stainless steel pipes and pipe fittings of this device are ordered according to the detailed engineering design "Comprehensive Material Lists" of the design institute, and the material is 0Cr18Ni10Ti. Conform to design specifications "Design... -
Leakages of Hydrogen Pipeline in Refining and Chemical Hydrogen Production Units
Posted: 08/10/2023 07:20:01 Hits: 16Summary In refining and chemical enterprises, with the development of enterprises and market demand, the national and international requirements for gasoline and other product standards continue to increase, and the number of hydrogenation units continues to increase; the demand for hydrogen continues... -
Analysis & Preventive Measures for Cracks in Ultra-high Pressure Steam Pipelines
Posted: 06/25/2023 09:55:46 Hits: 424.1 The Analysis of test results Through visual inspection, hardness inspection, composition and metallographic inspection, it is shown that the current performance of the material is consistent with its service time. Compared with the test results in 2006, the overall hardness value dropped significantly,... -
Cracking of Welding Seams of Eccentric Reducers in Ultra-high Pressure Steam Pipelines
Posted: 06/16/2023 11:53:41 Hits: 28Abstract: The cracking process of the welding seam of the reducer on the ultra-high pressure steam pipeline of the 220 kt/a ethylene plant of PetroChina Dushanzi Petrochemical Company was explained. Tests and other methods are used to find the cause of the cracking at the welding seam of the reducer... -
Discussion of Cracks of Reducers
Posted: 05/29/2023 11:44:12 Hits: 10From cracks of the reducer of the cold high-resolution bottom sewage pipeline of the cracked hydrogenation unit, it can be judged that the cracks belong to stress corrosion cracking caused by H2S. The conditions for cracking are as follows: Hydrogen environment There is a critical hydrogen... -
Cracks of Reducers
Posted: 05/10/2023 11:34:46 Hits: 16Abstract: Through the comprehensive analysis of reducers of the cracked residual oil hydrogenation cold high-pressure bottom sewage pipeline, the results show that under high hydrogen sulfide content and high pressure, even if the sulfur content of carbon steel reaches 0.003% (mass fraction), hydrogen-induced... -
Classifications of Stainless Steel Pipe Fittings
Posted: 04/26/2023 06:44:34 Hits: 11A stainless steel pipe fitting is a kind of pipe fittings, including stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers and stainless steel plugs. The main stainless steel materials are 304, 304L, 316L and 316L. According to the connection method, it can...