干气压缩机后冷却器扩散焊工艺优化研究

doi:10.3969/j.issn.1006-8805.2022.05.004

Petro-chemical Equipment Technology ›› 2022, Vol. 43 ›› Issue (5): 18-22.doi: 10.3969/j.issn.1006-8805.2022.05.004

• STATIC EQUIPMENT • Previous Articles

On Diffusion Welding Process Optimization of After-cooler for Dry Gas Compressor

Guo Zhifang¹, Meng Fanchang¹, Xu Xiaobo¹, Ren Laichao², Jiang Wenchun³, Fu Minxiang², Zhang Yucai³

1. Offshore Oil Engineering Co., Ltd., Tianjin, 300452;
2. Hangzhou Shenshi Energy Saving Technology Co., Ltd., Hangzhou, Zhejiang, 311612;
3. China University of Petroleum (East China), Qingdao, Shandong, 266580

Received:2022-06-25 Accepted:2022-08-30 Online:2022-09-15 Published:2022-11-16
Contact: Zhang Yucai E-mail:guozf@cooec.com.cn

Abstract

Abstract: In order to obtain high performance of the printed circuit plate heat exchanger for dry gas compressor, the mechanical properties of the stainless steel material 316L diffusion welded joints are investigated under different diffusion welding processes in working condition. The results confirm that the joint strength and toughness increase with the increase in welding temperature; when the welding temperature is higher than 1,060 ℃, the welding strength variation tendency is small; the joint yield strength and toughness increase with the increase in welding pressure; when the welding pressure is greater than 10 MPa, the joint mechanical properties change is small; with the extension of holding time, the strength changes slightly while the toughness increases. After comprehensive consideration, the process is optimized as follows: the diffusion welding temperature is 1,060~1,120 ℃, the welding pressure is 10~13 MPa, and the holding time is 60 min.

Key words: printed circuit plate heat exchanger, diffusion welding, process optimization, strength, toughness

Guo Zhifang, Meng Fanchang, Xu Xiaobo, Ren Laichao, Jiang Wenchun, Fu Minxiang, Zhang Yucai. On Diffusion Welding Process Optimization of After-cooler for Dry Gas Compressor[J].Petro-chemical Equipment Technology, 2022, 43(5): 18-22.

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On Diffusion Welding Process Optimization of After-cooler for Dry Gas Compressor

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