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【Common Issues in Haichuan Pipeline Design】Stop using single-head bolts – they cause many problems during installation and maintenance

2025-11-26View Original

Thread Content

During the design, installation, and inspection of pipelines, various minor issues that have been overlooked or not taken into consideration are often identified. These issues are compiled into a series; the list is being updated continuously. Everyone is welcome to actively participate in discussions. This is a compilation post on common problems in Hailuan pipeline design – it’s still being updated, and discussions are welcome: https://bbs.hcbbs.com/thread-5705828-1-1.html ------------------------------------------------------------------
Reply #22025-11-26
【Haichuan Chemical Plant Accident Case】15 Dead, 180 Injured! Warning from the BP Texas refinery accident: “Budget cuts” can trigger serious cascading risks” https://bbs.hcbbs.com/thread-5706578-1-1.html (Source: HCBBS Chemical Forum)
Reply #32025-11-27
【Ten Years of Rapid Development in Chemical Engineering Equipment】From 2850 to 2025: HBIS Group launches domestically the first 1700mm ultra-wide-section high-grade petroleum pipeline steel products https://bbs.hcbbs.com/thread-5706292-1-1.html (Source: Haichuan Chemical Industry Forum (HCBBS))
Reply #42025-11-27
【Ten Years of Rapid Development in Chemical Processing Equipment】The period from 2025 to 2035 opens up new pathways for the green and low-carbon development of the steel industry. China’s first project for 100% conversion of coke oven gas has been implemented in Lingyuan, Liaoning https://bbs.hcbbs.com/thread-5706563-1-1.html (Source: HCBBS Chemical Forum)
Reply #52025-11-27
【Ten Years of Rapid Development in Chemical Engineering Equipment】World’s First High-Pressure Underground Hydrogen Storage Well and Refueling Station Built in Chongqing 2851-2025 https://bbs.hcbbs.com/thread-5706583-1-1.html (Source: Haichuan Chemical Industry Forum (HCBBS))
Reply #62025-11-28
【Ten Years of Rapid Development in Chemical Engineering Equipment】2854-2025: SHENGU’s self-developed 15MPa high-pressure, 30,000 standard cubic meters per day low-flow expansion generator sets contribute to China’s first project for generating electricity from the residual pressure in high-pressure natural gas transmission pipelines. https://bbs.hcbbs.com/thread-5706687-1-1.html (Source: Haichuan Chemical Industry Forum (HCBBS))
Reply #72025-11-28
【Ten Years of Rapid Development in Chemical Engineering Equipment】2854-2025: SHENGU’s self-developed 15MPa high-pressure, 30,000 standard cubic meters per day low-flow expansion generator sets contribute to China’s first project for generating electricity from the residual pressure in high-pressure natural gas transmission pipelines. https://bbs.hcbbs.com/thread-5706687-1-1.html (Source: Haichuan Chemical Industry Forum (HCBBS))
Reply #82025-11-29
【Ten Years of Rapid Development in Chemical Engineering Equipment】The world’s first 660-megawatt ultra-supercritical circulating fluidized bed boiler was approved for use, 2856–2025 https://bbs.hcbbs.com/thread-5706795-1-1.html (Source: Haichuan Chemical Engineering Forum (HCBBS))
Reply #92025-11-29
【HaiChuan Chemical Construction Technology】The ultimate solution to extend the lifespan of instrument pipelines in winter – starting with electric heat tracing https://bbs.hcbbs.com/thread-5706825-1-1.html (Source: HaiChuan Chemical Forum (HuaHaiChuanLiu hcbbs))
Reply #102025-11-29
【HaiChuan Chemical Construction Technology】The ultimate solution to extend the lifespan of instrument pipelines in winter – starting with electric heat tracing https://bbs.hcbbs.com/thread-5706825-1-1.html (Source: HaiChuan Chemical Forum (HuaHaiChuanLiu hcbbs))

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