The hottest Huaxia valve national scientific resea

2022-08-17
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On August 30, 2012, the Energy Bureau of the national development and Reform Commission held a kick-off meeting for the localization of class III key valves of ultra (supercritical) thermal power units to arrange the localization of class III key valves of ultra (supercritical) thermal power units. Huaxia valve was once again shortlisted in the R & D team and undertook the research and development tasks of five prototypes

on August 30, 2012, the Energy Bureau of the national development and Reform Commission held a kick-off meeting for the localization of class III key valves of ultra (ultra) critical thermal power units since 2014, which arranged the localization of class III key valves of ultra (ultra) critical thermal power units. Huaxia valve was once again shortlisted in the R & D team and undertook the research and development tasks of five prototypes. In order to let more customers and readers continue to understand the efforts and every progress made by Huaxia valve for localization in the coming years, we continue to open the "focus on localization" column to continue to pay attention to and timely report the research and development of class III key valves

the research and development of the domestic prototype of class III key valves of Huaxia valve ultra (supercritical) thermal power unit is progressing smoothly: from September 4 to September 6, the prototype assembly, shell strength test and pneumatic a-experimental acceleration (m/s2) device test of the prototype of the Main Feedwater bypass regulating valve and the minimum flow valve of the feedwater pump were completed respectively. The experts of the provincial special inspection institute witnessed the test on site, and both tests achieved one-time success

according to the schedule of localization special plan, Huaxia valve will start prototype trial production from June. In order to ensure the normal progress of current production and prototype production, the valve manufacturing department of the company responsible for prototype manufacturing will organize the production of five prototypes in two stages. Among them, the main feed water bypass regulating valve and the minimum flow valve of the feed pump have completed the processing and welding of all mechanical parts before July 20 and the end of August respectively, ensuring the implementation of prototype assembly and field test from the first ten days of September

according to He Chuan, who is responsible for the assembly of the valve manufacturing department, during the assembly process of the two prototypes, the assembly team staff of the valve manufacturing department often worked overtime, especially Zhang Hechuan and Luo Yong, who worked until the middle of the evening for several consecutive days, ensuring the completion of the prototype assembly on schedule and winning time for the subsequent related tests

it is reported that the identification and acceptance time of the valve prototype determined by the national energy administration is November 10. Therefore, before that, Huaxia valve will not only complete the assembly of the other three valve prototypes, the shell strength test of the prototypes and the pneumatic device test of the prototypes, but also implement (or respectively) the test and commissioning of the hydraulic actuator, the sealing test at the automatic statistical experimental data of the stuffing box and other connecting systems A series of related tests such as operability (registration fee includes handouts, USB flash drives, meals, refreshments, etc.), valve seat leakage test, valve quick opening and its three break protection test, hydraulic device performance action test, rated flow coefficient test, valve 0-20% opening quick pass test, continuous operation life test, inherent flow characteristic test, etc., and the preparation of all identification data shall be completed by the end of October, To meet the national appraisal and acceptance. The picture shows the situation of Huaxia valve during the valve prototype test. (Wen Tu/zhanghuiping)

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