Manually-operated jigger mechanism for emergency power device of pressurized water reactor nuclear power station
A pressurized water reactor nuclear power plant, emergency power technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of not being able to press the valve head, increasing the distance between the pressure rod and the valve head, etc., to avoid cranking failures Effect
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[0025] Hereinafter, the present invention will be described in detail by taking a diesel engine power generation system as an example.
[0026] like figure 2 , 3 , Shown in 4 and 5, a kind of manual barring mechanism used for the emergency power equipment of the PWR nuclear power plant is used for the manual barring of the diesel engine in the diesel engine power generation system. The manual cranking mechanism includes a cranking manual conversion device and a spring valve. The spring valve 1 includes a spring valve body and a spring valve seat 11. The spring valve 1 is also connected with a positioning mechanism 2, and the positioning mechanism 2 is fixed on the base 3 of the diesel engine. , and press the spring valve seat 11 to prevent the spring valve seat 11 from moving backward relative to the manual conversion device for turning.
[0027] like image 3 , 4 , 5, the positioning mechanism 2 includes a fixing part 21 and a pressing part 22. The positioning mechanism ...
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