Are there any passenger ships from Shanghai to Tianjin?

No!

There are three domestic liner lines for maritime passenger transport in Tianjin Port: Tianjin to Longkou, Yantai and Dalian;

Two international liner lines: Tianjin to Kobe, Japan and Tianjin to Incheon, South Korea.

During the tourist season, European and Japanese tourist ships arrive at Tianjin Port from time to time.