Supercritical carbon dioxide cooling system and control method thereof

Abstract

The invention discloses a supercritical carbon dioxide cooling system and a control method thereof. The system comprises a temperature detecting device, a pressure detecting device, an oil level detecting device, a controller and a controller. The method comprises the steps that the temperature of a carbon dioxide inlet, a first gas cylinder and a second gas cylinder is detected through the temperature detecting device; the pressure of the carbon dioxide inlet, the first gas cylinder and the second gas cylinder is detected through the pressure detecting device; the oil quantity in an oil tankis detected by the oil level detecting device; and the controllers are used for automatically controlling the temperature detected by the temperature detecting device, the pressure of the pressure detecting device and the oil quantity detected by the oil level detecting device. The supercritical carbon dioxide cooling system can be matched with a motion execution structure according to the pressure, temperature, oil quantity and the like which are detected in real time to automatically enable carbon dioxide in a system pipeline to be in the super-critical state all the time, reliability is higher, and the intelligent degree is higher. The supercritical carbon dioxide cooling system and the control method can be widely applied to the field of metal processing.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a supercritical carbon dioxide cooling system and a control method thereof. Background technique [0002] With the rapid development of modern advanced manufacturing technology, various new materials and new processes have emerged, which put forward higher requirements for cutting speed, tool life and processing efficiency of machine tools. Clean production and green manufacturing have become one of the themes in the development of advanced manufacturing technology. The low-temperature cooling and lubricating cutting technology has been proved to be an effective solution to solve the difficult-to-machine characteristics such as strong cutting thermal shock and vibration of high-hardness and high-strength materials, and plastic materials are easy to produce processing burrs. [0003] At present, the commonly used low-temperature cutting technologies are mainly: low-temperature col...

AI Technical Summary

Problems solved by technology

The current supercritical carbon dioxide cooling technology fails to ensure that the CO2 in the pipeline is always in a supercritical state, which may easily lead to problems such as pipeline blockage, which is not reliable enough and has a low degree of intelligence

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