| 摘要 |
A high pressure heat exchanger particularly useful for ammonia gas synthesis plants in which the hot recycle gas passes through an insulated guide tube and hood and then through a tubesheet having nitriding-resistant central heat exchanger tubes. The gas then reverses its flow to pass through peripheral tubes into the space between the shell and guide hood from which it passes from the exchanger. In the upper part, water is admitted into heat exchanger relation with the gas and the steam resulting passes from the exchanger. Cool outside air is delivered to the space between the guide hood and shell. |
