Zhang, K.; Wu, D.; Wang, H.; Li, J.; Feng, Z.; Zhu, J.; Lai, Z. Investigation of Effects of Slider Structure on the Reversing Performance of Four-Way Reversing Valve. Processes2023, 11, 1538.
Zhang, K.; Wu, D.; Wang, H.; Li, J.; Feng, Z.; Zhu, J.; Lai, Z. Investigation of Effects of Slider Structure on the Reversing Performance of Four-Way Reversing Valve. Processes 2023, 11, 1538.
Zhang, K.; Wu, D.; Wang, H.; Li, J.; Feng, Z.; Zhu, J.; Lai, Z. Investigation of Effects of Slider Structure on the Reversing Performance of Four-Way Reversing Valve. Processes2023, 11, 1538.
Zhang, K.; Wu, D.; Wang, H.; Li, J.; Feng, Z.; Zhu, J.; Lai, Z. Investigation of Effects of Slider Structure on the Reversing Performance of Four-Way Reversing Valve. Processes 2023, 11, 1538.
Abstract
Unsmooth reversing is one of the most common faults in the four-way reversing valve of air conditioning system, and the airflow in the valve chamber and the shape of the slider of the reversing valve are the main factors in unsmooth reversing. In order to study the influence of the airflow in the chamber and the slider shape on the reversing process, the fluid flow in the valve chamber of a four-way reversing valve is obtained using computational fluid dynamics (CFD) simulations, and the influence of slider structure on slider thrust and resistance of the four-way reversing valve is analyzed. Four-way reversing valves with no-cutting, straight-cutting and arc-cutting sliders are employed to evaluate the reversing characteristics. A pressure measuring device for a four-way reversing valve chamber is designed, which is performed to test the chamber pressure of three different types of sliders of four-way reversing valves. The maximum error of experimental tests and simulations is within 5% of engineering tolerance, so as to verify the reliability of numerical simulation. The results indicate that the chamber pressure and resistance-thrust ratio with the cutting slider are reduced, which is beneficial to the reversing of the four-way reversing valve. Compared with the straight cutting structure, the arc cutting slider four-way reversing valve has a more stable reversing process and better comprehensive reversing performance. The results can provide a theoretical basis for engineers to improve the performance of four-way reversing valves.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
