Blast furnace coal gas pressure reducing valve
A blast furnace gas and pressure reducing valve technology, used in safety valves, balance valves, valve devices, etc., can solve the problems of uneven air flow, large wear and tear of the pressure reducing valve group, and large airflow disturbance, and achieve the reduction of pipeline vibration and sealing performance. Improve and reduce the effect of comprehensive investment
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[0018] Such as figure 2 As shown, the blast furnace gas pressure reducing valve includes a valve body 2 and a valve core 4, the valve core 4 is located in the cavity of the valve body 2, and the inlet end and the outlet end of the valve body 2 are respectively provided with flanges for pipe connection; The part on the valve body 2 close to the inlet end of the valve body is the annular inner concave part 7 (that is, the annular inwardly concave part, which functions as a seal), and the valve core 4 is a double cone (both ends of the double cone are small head ends, The middle part has a large diameter, and the maximum diameter of the double cone is larger than the diameter of the annular inner recess; the cone of the double cone is sealed with the annular inner recess); one end of the valve core 4 is fixedly connected to one end of the first connecting rod 6 (also can be used Integral structure), the other end of the first connecting rod 6 is hinged with one end of the crank o...
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