FESTO調(diào)壓閥@德國festo費斯托

調(diào)壓閥采用全油壓控制，原設(shè)計中有1個節(jié)流孔用于整定調(diào)壓閥的關(guān)閉時間。由于調(diào)壓閥是后來增加的項目，調(diào)速器廠家和調(diào)壓閥廠家未能及時溝通，造成節(jié)流孔實際并不存在，調(diào)壓閥關(guān)閉時間不能調(diào)整，且調(diào)壓閥全行程不能達(dá)到廠家65mm的要求，實際調(diào)壓閥的行程只有45mm。對于調(diào)速器和調(diào)壓閥的開啟關(guān)閉時間，設(shè)計調(diào)保計算的要求為：無水狀態(tài)下調(diào)速器快關(guān)（100%～0）和調(diào)壓閥快開時間（0～100%）為8.5s，調(diào)壓閥慢關(guān)時間（100%～0）為19s；2臺機組聯(lián)甩額定負(fù)荷時壓力上升率控制在205以下，轉(zhuǎn)速上升率控制在55%以下。按設(shè)計要求，這2臺調(diào)壓閥開啟時間和開度都達(dá)不到設(shè)計要求，實測快開啟時間為6s，開度為45mm。經(jīng)分析，系兩者的油缸大小不匹配，調(diào)壓閥的排油不能全部進入調(diào)速器的油缸，致使調(diào)壓閥排油不盡，從而影響開度。此時如果要求廠家重新制作更換調(diào)壓閥將會嚴(yán)重拖延發(fā)電時間，造成巨大經(jīng)濟損失，所以只能先從技術(shù)上在考慮是否可以通過更改調(diào)速器主接力器時間來滿足與調(diào)壓閥的協(xié)聯(lián)。

FESTO調(diào)壓閥@德國festo費斯托

528952 LRB-1/4-D-7-O-K2-MINI 調(diào)壓閥
528968 LRB-1/4-D-7-O-K3-MINI 調(diào)壓閥
528984 LRB-1/4-D-7-O-K4-MINI 調(diào)壓閥
529000 LRB-1/4-D-7-O-K5-MINI 調(diào)壓閥
528954 LRB-1/4-D-O-K2-MINI 調(diào)壓閥
528970 LRB-1/4-D-O-K3-MINI 調(diào)壓閥
528986 LRB-1/4-D-O-K4-MINI 調(diào)壓閥
529002 LRB-1/4-D-O-K5-MINI 調(diào)壓閥
528953 LRB-3/8-D-7-O-K2-MINI 調(diào)壓閥
528969 LRB-3/8-D-7-O-K3-MINI 調(diào)壓閥
528985 LRB-3/8-D-7-O-K4-MINI 調(diào)壓閥
529001 LRB-3/8-D-7-O-K5-MINI 調(diào)壓閥
528955 LRB-3/8-D-O-K2-MINI 調(diào)壓閥
528971 LRB-3/8-D-O-K3-MINI 調(diào)壓閥
528987 LRB-3/8-D-O-K4-MINI 調(diào)壓閥
529003 LRB-3/8-D-O-K5-MINI 調(diào)壓閥
528956 LRB-3/8-D-7-O-K2-MIDI 調(diào)壓閥
528972 LRB-3/8-D-7-O-K3-MIDI 調(diào)壓閥
 

528988 LRB-3/8-D-7-O-K4-MIDI 調(diào)壓閥
529004 LRB-3/8-D-7-O-K5-MIDI 調(diào)壓閥
528958 LRB-3/8-D-O-K2-MIDI 調(diào)壓閥
528974 LRB-3/8-D-O-K3-MIDI 調(diào)壓閥
528990 LRB-3/8-D-O-K4-MIDI 調(diào)壓閥
529006 LRB-3/8-D-O-K5-MIDI 調(diào)壓閥
528957 LRB-1/2-D-7-O-K2-MIDI 調(diào)壓閥
528973 LRB-1/2-D-7-O-K3-MIDI 調(diào)壓閥
528989 LRB-1/2-D-7-O-K4-MIDI 調(diào)壓閥
529005 LRB-1/2-D-7-O-K5-MIDI 調(diào)壓閥
528959 LRB-1/2-D-O-K2-MIDI 調(diào)壓閥
528975 LRB-1/2-D-O-K3-MIDI 調(diào)壓閥
528991 LRB-1/2-D-O-K4-MIDI 調(diào)壓閥
529007 LRB-1/2-D-O-K5-MIDI 調(diào)壓閥