Rolling rotor compressors are widely used in domestic air conditioning and heat pump systems. The exhaust valve uses a reed valve as shown.

The motion characteristics of the reed exhaust valve exhaust valve directly determine the economics of the compressor and affect the noise level of the compressor to a large extent. 13. In recent years, the rotational speed range of the rolling rotor refrigeration compressor has been expanding, new environmental protection The refrigerant is constantly updated and the operating conditions are deteriorating (such as low temperature refrigeration and high temperature heating). However, studies have shown that the rotational speed, refrigerant type and exhaust operating conditions have a great influence on the motion law of the reciprocating refrigeration compressor valve. Therefore, it is of great engineering practical significance to study the effects of rotational speed, exhaust pressure, exhaust density and exhaust angle on the motion law of the exhaust valve of the rolling rotor compressor.

In the past, the mathematical model used to study the motion law of reed valves borrowed from the traditional mathematical model of reciprocating compressor ring valves. The flow field is usually assumed to be a one-dimensional adiabatic compressible flow, and the solid field sees the valve system as a dimensional single point linear spring system 6, or a "dimensional cantilever beam system," or a continuous beam vibration system 8, or a limited plate theory. Unit system. However, no matter which solid field model is adopted, they introduce flow coefficient to simplify the flow differential equation, introduce thrust coefficient to simplify the pressure of the 05 gas received by the valve plate, and introduce the rebound coefficient to simplify the impact of the valve plate with the baffle and the valve seat. process. And the flow coefficient and thrust coefficient are usually statically blown through the air valve. The initial solid field finite element model is shown. The entire computational domain is meshed using 8-node hexahedral elements.

The calculation result and analysis of the solid state model of the valve seat 3 The standard model of the standard model is set as follows: the compressor speed is 4800/min, the exhaust angle is 205°, the exhaust pressure is 3385 kPa, and the exhaust gas temperature is fluid-solid coupling. Model is

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