IMPROVEMENTS RELATING TO PRESSURE TUBE REACTORS
In the described reactor, pressure tubes pass parallelly through the moderator container, each tube being closed at both ends by removable closure means. Each pressure tube is joined by connection tubes to entrance and exit header tubes connected to heat exchangers. The axes of the pressure tubes lie in a plurality of parallel planes alternately with the axes of the header tubes, and the header tubes are connected with half of the pressure tubes lying in each of the two adjacent pressure tube planes and in the same half of the reactor. The header tubes enter the heat exchanger parallel, close together, and extend in the same direction as the pressure tubes, header tubes of the same plane thus forming a row. The other ends of the header tubes are bent in a right angle, the extremities of these end portions lying on a straight line parallel to the pressure tubes. The headers are extended at these extremities by the connection tubes, which are bent in a direction opposite to that in which the header tubes are bent, before being connected at lateral openings in the pressure tubes; as a result the unit formed by a header and a connection tube has a sinuous shape able to accommodate thermal expansions of the pressure tubes. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-033036
- OSTI ID:
- 4823800
- Report Number(s):
- FR 1227433
- Country of Publication:
- France
- Language:
- English
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