| 摘要 |
<p>PURPOSE:To increase energy-saving effect without using an auxiliary heater by branching discharged gas from a compressor after it is introduced to a gas-gas heat-exchanger as well as an after cooler in series and re-heating it by a gas-gas heat-exchanger so as to give a gas for regenerative heating. CONSTITUTION:A gas discharged from a compressor 17 in the final stage is introduced into a high temperature side of a gas-gas heat-exchanger 16 and then to an after cooler 2 in series to become a low temperature and low humidity gas. For regenerative heating, the gas is branched and introduced into the low temperature side of the gas-gas heat-exchanger 16 to be re-heated, the resulting high temperature and low humidity gas is led to a cylinder 1c from a header 6 through an air operation valve AV-7, passes a header 4, a valve AV-8, a regenerative cooler 9, and a drain separator 11, is joined to a humid gas supplying line 13, and dehumidified in a cylinder 1a, 1b to give a dried gas. On the other hand, in the case of regenerative cooling, the valve AV-8 is switched, and the branched gas is led to the cylinder 1c from the header 4, passed through the header 6 and the valve AV-7, and is introduced into the cooler 9 followed by the same flow route as that in the case of regenerative heating.</p> |
