Heat exchanger and heat exchange device

A heat exchanger comprising:

• a tubular core case;
• a pair of end plates for closing opposite ends of the core case;
• and
• a plurality of heat exchange tubes supported at opposite ends by the end plates and allowing a first heating medium to flow inside thereof, so as to effectuate heat exchange between the first heating medium and a second heating medium flowing along an outer periphery of the heat exchange tubes,
• wherein one of the end plates is disposed on an upstream side of flow of the first heating medium as an upstream end plate while another one of the end plates is disposed on a downstream side of the flow of the first heating medium as a downstream end plate,
• the downstream end plate comprises a downstream bottom surface part for supporting downstream end parts of the heat exchange tubes, and a downstream wall part formed integrally with and rising from a peripheral edge of the downstream bottom surface part, and a top end part of the downstream wall part is oriented toward upstream of the flow of the first heating medium.