Plate valves are recommended up to 20 MPa differential or 40 MPa discharge pressure
and 1800 rpm.
Ring Type Valve
Reciprocating Compressor Basics Components
As the name implies the ring-type valve consisting of concentric ring valve uses one
or more relatively narrow rings arranged concentrically about the centre line of the
valve (see Fig ). These valves have the advantage of a low-stress level due to the
lack of stress concentration points. It is difficult to maintain uniform flow control
across the ring-type valve.
Ring valves are recommended up to 30 MPa differential or 60 MPa discharge pressure
and 600 rpm.
Connecting Rod连杆
Purpose of the connecting rod is to connect the crankshaft and the crosshead. The
connecting rod converts the rotary motion into reciprocating motion. The connecting
rod bolts and nuts shall be securely locked with cotter pins or wire after assembly.
Like Crankshafts, the connecting rod has drilled hole for oil passage.
Cross Head十字头
All industrial compressors are equipped with crosshead. The crosshead is used to
guide the piston in the cylinder bore. The following are the advantage of the crosshead.
Crank Shaft曲轴
Larger compressors, normally above 150 kW(200 hp), the crankshaft is made up of
forged steel. Compressor less than or equal to 150kW, the crankshaft is made up of
ductile iron.
Rod Packing活塞杆填料
Rod packing is required to prevent the gas leakage along the piston rod where it
passes through the crank end cylinder closure.
Distance Piece 定距片
The distance piece is a separable housing that connects the cylinder to the frame.
The distance piece may be open or closed type and may have multiple compartments.
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