Thermal bulb of thermal expansion valve, filling method thereof and refrigerating system with same

Abstract

The invention discloses a thermal bulb of a thermal expansion valve, a filling method of the thermal bulb and a refrigerating system with the thermal bulb of the thermal expansion valve. The thermal expansion valve comprises a valve body component, a driving component and the thermal bulb, wherein the driving component is used for driving the valve body component, and the thermal bulb is filled with thermal working media. The thermal bulb is characterized in that the thermal working media comprise octafluorocyclobutane and non-condensable gas. The filling method of the thermal bulb includes the steps of A20, enabling a filling tube to be connected to a filling device, A40, starting a vacuum pump to vacuumize a cavity on a membrane, and then stopping the vacuum pump, A60, filling the thermal bulb with the octafluorocyclobutane and the non-condensable gas, and A80, carrying out sealing processing on the filling tube. After the thermal bulb and the filling method of the thermal bulb are used, fluctuations of static superheat degrees of the thermal expansion valve at different thermal bulb temperatures are quite small, and the refrigerating system with the thermal expansion valve is high in energy efficiency ratio.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves upon existing systems by adding an element called Thermal Expansion Valve (TXV) that can detect changes in pressure or other factors related to how well heat exchangers work effectively at different temperatures. By filling it with these elements, there are fewer ways to adjust their operation based on changing conditions like ambient air levels or coolant flow rates. Overall, this innovative design enhances the performance of both conventional and new types of refrigansystems.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the operation of thermostatic expanders in refrigansystems such as an air conditioner due to their high cost compared to other alternatives like natural gas. Additionally, current methods are either too complicated or require expensive materials, which makes it difficult to use these options effectively without sacrifices on its overall economic benefit.

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