Shandong Rongxin Group Co., Ltd. is a large-scale modern chemical enterprise located in the hometown of Confucius and Mencius, Zoucheng City, Shandong Province. Developed from Shandong Rongxin Coal Chemical Co., Ltd. established on October 18. 2007. it has Shandong Hengxin technology, Shandong new energy and Shandong Hengxin shipping and other subsidiaries. Its shareholders are Jiangsu Shagang Group, one of the world's top 500 companies, and Shandong Hengxin group 。 With the capacity scale of 2.4 million tons / year coke, 250000 tons / year methanol, 300000 tons / year coal tar hydrogenation deep processing, 100000 tons / year crude benzene hydrogenation, 2 × 25MW waste heat power generation, it produces more than 30 kinds of products such as coke, methanol, coal tar, crude benzene, ammonium sulfide, modified light aromatics, modified heavy aromatics, pure benzene, methylbenzene, xylene, etc., forming coal coking, tar hydrogenation, benzene hydrogenation, gas, etc Industrial chain of circular economy, such as methanol production, residual heat and pressure utilization, etc.

　　Sinier vortex flowmeter and balance flowmeter have been applied in the coal chemical field of Shandong Rongxin group. According to the characteristics of small flow, high pressure and special diameter of the water inlet pipeline of high pressure boiler, the special design of DN20 internal contraction DN15 (design pressure 10MPa) is adopted, which not only meets the actual needs of the site conditions, but also ensures the stability and high precision of the flow measurement. The large-diameter balancing flowmeter (larger than dn500mm) of sinier sd41 has also been widely used in the field. According to the site process requirements and relevant national safety regulations, the requirements of welding process and sealing process for large-diameter balanced flowmeter are very strict. The large-diameter balance flowmeter produced by sinal precision manufacturing center is the forefront of the industry in terms of safety performance and accuracy stability. As shown in the above photos, the primary meter of large-diameter balance flowmeter is generally installed at a high place, and the design requires that the secondary meter display must be on the ground. In this case, Sinier designed a special pressure tap design and an extra long-distance pressure pipe design for the user, which solved the problem of pressure tap difficulty and inaccuracy in the user's site, and was highly appreciated by the user.