| 摘要 |
PROBLEM TO BE SOLVED: To improve heat exchange efficiency of both encapsulation liquid and cooling liquid.SOLUTION: A mechanical seal 10 includes a housing 12 defining an encapsulation liquid chamber 16 and a heat exchanging chamber 17. The heat exchanger chamber 17 is provided with a cylindrical cleaning member 37 having a plurality of flow passages 38A to 38C for encapsulation liquid flowed in either a radial direction or axial direction and a plurality of flow passages 42A to 42C of cooling liquid flowed in either an axial direction or a radial direction. The plurality of flow passages 42A to 42C have the first communication part 39A for communicating the first and second cooling liquid flow passages 42A, 42B and non-communicating with the third cooling liquid flow passage 42C at one end side, and the second communication part 40A for communicating the second and third cooling liquid flow passages 42B, 42C and non-communicating with the first cooling liquid flow passage 42A at the other end side. The first to third cooling liquid flow passages 42A to 42C are communicated in series.SELECTED DRAWING: Figure 1 |
