Heat Exchange System

A heat exchange system comprising:

• a first heat exchanger for transferring heat between a low-temperature fluid and a high-temperature fluid whose temperature is higher than the low-temperature fluid;
• and
• a second heat exchanger for transferring heat between flows of the low-temperature fluid,
• the second heat exchanger including:
• a first inlet configured for the low-temperature fluid to flow into;
• a first outlet which communicates with the first inlet;
• a second inlet configured for the low-temperature fluid to flow into;
• and
• a second outlet which communicates with the second inlet, wherein
• the second heat exchanger is configured to transfer heat between the low-temperature fluid flowing in from the first inlet and the low-temperature fluid flowing out from the first outlet and flowing in from the second inlet,
• the first heat exchanger is provided between the first outlet and the second inlet and is configured to heat the low-temperature fluid flowing out from the first outlet,
• the low-temperature fluid flowing out from the second outlet can flow into the first exchanger.