Study on the Selection of Single-Screw Steam Compressors in Industrial Steam Supply-Reference-Cited by-同舟云学术

Study on the Selection of Single-Screw Steam Compressors in Industrial Steam Supply

Published:2023-05-19 Issue:10 Volume:16 Page:4199
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Zhang Pan¹,Ke Xiwei¹,Wang Weiliang²,Tang Xueyu¹,Lyu Junfu¹,Tang Qinghong¹

Affiliation:

1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China

2. Energy and Electricity Research Center, Jinan University, Zhuhai 519070, China

Abstract

Both direct and indirect heating compression methods were proposed to satisfy the requirement of industrial steam compression and supply. The compression process in a single-screw compressor was analyzed with the determination of different inlet and outlet boundary conditions. Considering the misalignment of meshing pairs caused by the offset of the star wheel axis and screw origin, the differential expansion of the vertical meshing pair was further analyzed. The inner ring of the sealing end face, the wall of the inner ring of the bearing at the inlet and outlet ends, and the bottom surface of the bracket were analyzed by different coordinate systems and different constraints, thus facilitating the design and selection of the single screw. The critical point for the design of a steam-type single-screw compressor is an outlet temperature of 350 °C and an outlet volume flow rate of 130 m3/min. At a flow rate of 130 m3/min, when the temperature exceeds 350 °C, the reliability of the compressor is still limited, and the differential expansion of the meshing pair exceeds 0.3 mm. In addition, superheating of steam can be improved by applying a centrifugal compressor with cascade compression and centrifugal compression in conjunction with reflux adjustment at the compression outlet.

Funder

the Key Project of the National Fourteen-Five Year Research Program of China

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Link

https://www.mdpi.com/1996-1073/16/10/4199/pdf

Reference26 articles.

1. Assessment of utilization of combined heat and power systems to provide grid flexibility alongside variable renewable energy systems;Takeshita;Energy,2021

2. Liu, J.X., Xi, Z., Li, X.H., Yang, Q.P., Xu, H.X., and Du, G.D. (2014). Numerical study on the overall performance and flow field characteristics of industrial steam compressor. Shanxi Prov. Inst. Mech. Eng.

3. Analysis of a new design of a multi-stage flash–mechanical vapor compression desalination process;Mabrouk;Desalination,2007

4. Huang, Z.K., Zhang, P., Du, X., Zhang, F.F., Liu, Y.H., Sun, B., Li, X., Wang, J.D., and Liang, Y.P. (2017). Adjusting Method of Steam Compressor in Application System of Upgrading and Heat Supplying of Exhausted Steam of Thermal Power Generating Unit Steam Turbine. (CN106930792B).

5. Zhang, P., Huang, Z.K., Du, X., Zhang, F.F., Liu, Y.H., Sun, B., Li, X., Wang, J.D., and Liang, Y.P. (2018). Reconstruction Method for Boosting Steam Supply Branch Network of Steam Compressor and Reducing Extraction Parameters. (CN106968736B).