Rolling rotor refrigeration compressor with function of preventing liquid impact

The invention discloses a rolling rotor refrigeration compressor with a function of preventing liquid impact, which is used for guaranteeing the normal work of a refrigeration compressor and the good operation of a refrigeration system, reducing equipment investment and saving energy. A right end cover is provided with a suction hole communicated with a suction pipe. A cover plate is provided with an exhaust hole which is provided with an exhaust valve. A bypass port is arranged beside the exhaust valve. The distance between the exhaust hole and a slip sheet is less than the distance between the bypass port and the slip sheet. An exhaust cavity is arranged between a left end cover and the cover plate. The left end cover is provided with an exhaust through hole communicated with the exhaust cavity. The position on the left end cover, corresponding to the bypass port on the cover plate, is provided with a spring groove. A bypass valve plate jacking spring which makes a round bypass valve plate jacked on the bypass port is arranged in the spring groove. The bypass valve plate jacking spring, the round bypass valve plate and the corresponding positions of the left end cover and the cover plate form a bypass valve. The rolling rotor refrigeration compressor disclosed by the invention can prevent liquid impact accident, guarantee the reliability of the refrigeration compressor and the operation performance of the refrigeration system, reduce cost, and save energy. Besides, the invention is safe and reliable.