【Ten Years of Rapid Development in Chemical Equipment】Domestic production of all sizes of ultra-low temperature butterfly valves for LNG receiving stations from 2016 to 2023

There is a shortage of domestically produced low-temperature butterfly valves, so research teams from central state-owned enterprises have stepped in to help. Zhang Yan, manager of the Materials Procurement Department at the Project Management Branch of Pipeline Network Group, told reporters that the key technologies related to low-temperature valves used in LNG receiving stations lie in areas such as materials, design, manufacturing, and inspection. The technical requirements for triple-eccentric butterfly valves are particularly high, and in previous projects, such valves had to be imported. “At LNG receiving stations, there is a high demand for butterfly valves with a diameter of 28 inches or more. These stations have long relied on imported brands, which results in high construction and operation costs. Additionally, the lead times for importing such products are long, posing a serious obstacle to the rapid development of LNG receiving station construction ； At the same time, relying heavily on foreign imports makes it vulnerable to international developments. ”Zhang Yan said. Established in December 2019, **Pipeline Group is primarily engaged in the investment, construction, and operation of infrastructure such as oil and gas main pipelines as well as gas storage and peak-shaving facilities. The Longkou LNG receiving station project is not only the first major energy infrastructure project of a new type constructed since the establishment of the Pipeline Network Group, but it is also the largest LNG receiving station currently under construction in China. Reporters from Science and Technology Daily learned from research materials on the localization of low-temperature butterfly valves for LNG receiving station projects that, according to this research, there are currently over 30 LNG receiving stations under construction or in the planning stage in China, and the demand for related valves is increasing day by day, with the greatest demand being for low-temperature valves. In LNG receiving terminals with a receiving capacity of over 2 million tons per year, there are around 2,000 low-temperature valves, which are key devices ensuring the long-term, efficient, safe, and reliable operation of such terminals. For this reason, Li Bo from the Project Management Branch of **Pipeline Network Group** said, “Localizing the key technologies for the first phase of the Longkou LNG receiving station is our goal.” ” To break down the aforementioned goals, the company established a three-step approach: \"research on domestic production – strategies for implementing domestic production – application and practice of domestic production,\" and formed a task force to conduct investigations among key domestic manufacturers in order to identify and compile all the key factors related to the possible domestic production of various equipment. On this basis, a scientific strategy for the localization of equipment should be formulated, specifying the goals for localizing key devices such as unloading arms, low-temperature butterfly valves, and low-temperature safety valves.

Domestically produced large-diameter low-temperature butterfly valves have been put into use, reducing the cost per unit by 60%. Industry-university-research collaboration is an important approach to overcoming challenges. **Zhu Xiaodan, deputy manager of the Materials Procurement Department at the Project Management Branch of the Pipeline Network Group, told reporters: “Over the past three years, we have repeatedly communicated with manufacturers regarding the details of equipment localization, technological innovations, and key areas for improvement, in order to determine the relevant data and parameters for localization.” We classified low-temperature valves according to their functions and the importance level of their operation frequency, established detailed guidelines for domestic production, which ultimately enabled the successful development and implementation of domestic production for various key devices such as low-temperature butterfly valves, ball valves, and low-temperature safety valves. ” For the first phase of the Longkou Nanshan LNG receiving station, April 3 this year was a landmark day. On that day, in Yichang, Hubei, the three-eccentric ultra-low temperature butterfly valves of \"42 inches 150 pounds\" and \"28 inches 150 pounds\", developed under the leadership of the Project Management Branch of **Pipeline Network Group, passed the domestication assessment. At the new product evaluation meeting, experts such as **Ya**, the deputy chief engineer of Hefei General Machinery Research Institute, and Ji Zhongli, a doctoral supervisor at China University of Petroleum, believed that the large-diameter triple-eccentric ultra-low temperature butterfly valve developed this time possesses independent intellectual property rights, and its key technical parameters are at the advanced level of similar international products; in particular, its sealing performance is superior to that of foreign products, making it suitable for use in LNG receiving stations. **Wang Juan, an LNG procurement specialist at the Materials Procurement Department of the Pipeline Network Construction Project Management Branch, did some calculations for the reporters: the successful development of domestically produced large-diameter triple-eccentric ultra-low temperature butterfly valves has significantly reduced the investment and construction time required for receiving stations. Compared to imported butterfly valves of the same specifications and functions, these domestic valves save approximately 60% in cost per unit, while also reducing the supply time by 40%. Just for the 16 42-inch butterfly valves used in the first phase of the Longkou LNG project, this can result in savings of 20.8 million yuan. On May 24 following that, a prototype of the domestically produced \"ultra-low temperature safety valve\" completed all factory tests and third-party inspection tests, and also passed the domestic production certification. Experts attending the meeting, including Shen Xuechen, former chief engineer of the Valve Branch of the China General Machinery Industry Association, and Li Shuxun, a doctoral supervisor at Lanzhou University of Technology, believe that the successful development of domestic 3-inch×4-inch 1500-pound ultra-low temperature high-pressure spring-loaded safety valves and 4-inch×6-inch 1500-pound ultra-low temperature high-pressure pilot-operated safety valves will help change the situation in which China has long relied on imported valves for such applications. This can help avoid risks associated with foreign purchases, improve economic efficiency, and accelerate the process of localization. At the same time, it is necessary to improve the quality of domestic production of key equipment at LNG receiving stations, thereby promoting the healthy development of China’s ultra-low temperature valve industry in terms of self-reliance and domestic production. At present, the first phase of the Longkou LNG receiving station has achieved a 90% localization rate for its equipment, and it has promoted the localization of a range of key equipment such as unloading arms, low-temperature butterfly valves, and low-temperature safety valves. Li Bo said, “Going forward, we will continue to strictly oversee the quality of domestic production of key equipment at LNG receiving stations, and keep working hard to advance the localization of such equipment, thereby contributing to the development of the domestic LNG industry.” ”

On April 4, the China National Machinery Industry Federation and the China General Machinery Industry Association organized a demonstration evaluation meeting for the prototype versions of the \"Longkou LNG and Tianjin LNG 42\" Class150, 28\" Class150 ultra-low temperature butterfly valves\" in Zigui, Hubei. The appraisal meeting was chaired by Yang Tiecheng from the Major Projects Office of the China National Machinery Industry Federation. The expert panel of this appraisal committee consists of experts from Hefei General Machinery Research Institute Co., Ltd., the School of Mechanical and Transportation Engineering at China University of Petroleum, **Valve Quality Inspection and Testing Center (Zhejiang), China Global Engineering Corporation, the Design Institute of Offshore Oil Engineering Co., Ltd., CNOOC Zhejiang Ningbo LNG Co., Ltd., Sinopec Qingdao LNG Co., Ltd., **Pipeline Network Group Dalian LNG Co., Ltd., and Beijing Gas Group (Tianjin) LNG Co., Ltd., among others. The products subject to this evaluation are 42\" Class150 and 28\" Class150 ultra-low temperature butterfly valves developed by Hubei Taihe Petrochemical Equipment Co., Ltd. in collaboration with the Project Management Branch of **PetroChina Pipeline Network Group Co., Ltd. and the LNG Receiving Station Management Branch. These valves are intended to support the construction of projects such as the Longkou LNG Receiving Station of Nanshan (Shandong) Natural Gas Co., Ltd. and the second phase of the Tianjin LNG Receiving Station operated by Tianjin LNG Co., Ltd. The expert group visited the production site of Hubei Taihe Petrochemical Equipment Co., Ltd., listened to reports on the technical requirements for developing prototype products as well as summaries of the development process, reviewed the technical data and quality inspection documents related to the 42\" Class150 and 28\" Class150 ultra-low temperature butterfly valves, and conducted product presentations on site. The expert group unanimously agreed that the ultra-low temperature butterfly valves developed by Hubei Taihe Petrochemical Equipment Co., Ltd. possess independent intellectual property rights; they fill the gap in domestic large-diameter low-temperature butterfly valves, and their key technical specifications meet the advanced standards of similar international products. In fact, their main parameters are superior to those of foreign products, allowing them to be used in low-temperature applications such as LNG. Finally, the expert group unanimously agreed that the 42\" Class150 and 28\" Class150 ultra-low temperature butterfly valves produced by Hubei Taihe Petrochemical Equipment Co., Ltd. passed the evaluation. Source: Zigui County Science, Technology and Economy Bureau

【Ten Years of Rapid Development in Chemical Engineering Equipment】The world’s first submerged liquid-cooled energy storage power station was put into operation in Guangdong from 2016 to 2023. https://bbs.hcbbs.com/thread-5262103-1-1.html (Source: Haichuan Chemical Engineering Forum)

This is domestically produced; it’s really good