Rotor type Stirling refrigerator and working method

Abstract

A rotor type Stirling refrigerator and its working method belong to the field of refrigeration equipment. It includes a special-shaped triangular rotor and a rotor housing cavity. There is a hole at the bottom that allows the special-shaped triangular rotor to communicate with the outside world. The special-shaped triangular rotor is provided with a tubular extension on which an external gear is installed. An eccentric shaft is inserted into the tubular extension. The eccentric shaft Driven by the motor through the coupling, the external gear matches the fixed inner gear at the bottom of the rotor housing cavity to ensure that the motor drives the special-shaped triangular rotor through the eccentric shaft to move in the rotor housing cavity. Four through holes are opened on the top, and two U-shaped heat exchange tube groups are respectively arranged on the four through holes. The rotor-type Stirling refrigerator avoids the vibration problem of the traditional rhombic transmission and the crank-connecting rod Stirling refrigerator, and the efficiency is improved by relying on the rotor drive, and the structure is more compact. The internal working medium is in a sealed state, isolated from the outside world, and there is no phase change and throttling process during circulation.

Description

technical field [0001] The invention relates to a refrigerator and a working method, in particular to a rotor type Stirling refrigerator and a working method used in industrial and mining enterprises. Background technique [0002] The Stirling refrigerator is a refrigerator based on the Stirling refrigeration cycle. There is no phase change or throttling of the working medium during operation, which greatly improves the efficiency and makes it easier to achieve low temperatures. Nowadays, the development of Stirling refrigerators is relatively mature, and can achieve lower temperatures in a short period of time, but the Stirling refrigerators with relatively mature technology are all piston or two-stage piston refrigerators, and the volume change inside the body depends on The reciprocating motion of the piston changes the control, and the problems of noise and vibration are more serious. Due to its working principle, the Stirling refrigerator can realize refrigeration at l...

AI Technical Summary

Problems solved by technology

However, the combination of the cylinder and the piston is essentially the reciprocating motion of the piston in the linear direction, which will cause a great vibration problem of the whole machine, and the cooperation of the piston and the cylinder cannot achieve high frequency movement. When the internal working fluid pressure When it is determined, it is difficult to increase the input power of the body to output more cooling capacity without high-frequency exercise

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