To provide a heat supply system capable of detecting liquid spill from piping connections.
A heat supply system includes a heating means for heating liquid, a screw type piping connection for connecting piping 16 making the liquid pass through, a strain gauge 18 for detecting strains of the piping connection, and a liquid spill detecting means (detection part 19) detecting the liquid spill from the piping connection by comparing a detected value based on a signal of the strain gauge 18 with a predetermined threshold. The piping connection includes a connection screw part 15 in which a male screw is formed, a nut 14 in which a female screw threading onto the male screw is formed, and a seal member 17 interposed between the piping 16 and the connection screw 15, compressed between the piping 16 and the connection screw 15 by tightening the nut 14, and made of an elastic material.
| JPH07148668A | 1995-06-13 | |||
| JP2010107162A | 2010-05-13 | |||
| JP2011127877A | 2011-06-30 |
Hideki Takahashi
Yasuo Koizumi