Reliability experiment on the valve plate of total enclosed piston type refrigeration compressor;

Three kinds of different stamping technique for forming valve plate part of automotive air conditioner compressor were analyzed.

In the flatform,finite element analysis is done on compressor valve plate.

Development and study of B-type directed valve trays;

In order to have reliable referenced data for selecting the height of floating valves when directed trapezoidal valve trays were applied in industry,the experiment on the structure parameter of which was studied.

The hydrodynamics of the new employed gradient ringent trapezoidal valve trays are experimentally studied with the air-water system in a 500 mm×500 mm quadrate column.

Improvement of flat gate valve sealed structute;

Design and discussion on hydraulic operated flat gate valve;

In comparison with the traditional float valve tray, the new tray had lower pressure drop (80-100Pa lower before valve fully opening and 300-400Pa lower after valve fully opening); weeping was about 10% less; the tray efficiency was about 10% higher; and flow guide function was obvious.

The FORGRAN Program, flow chats and illutration for calculation of technological design and hydraulics check of the HTV-type float valve tray were given.