| 摘要 |
<p>The heat exchanger consists of a housing which is basically cylindrical in shape. It comprises an inlet and an outlet for the primary fluid and end flanges (22) to close the housing and through which tubes carrying the secondary fluid pass. Each of the flanges is made from a synthetic rubber, such as ethylene rubber and polypropylene. Each flange is in the shape of a circular plate with parallel lips (22e,22f) round the edge of each face. One set of the flange lips fits against the end of the cylindrical housing and the other against the end of a conical cover (30). The cover fits over it and is fixed in place by a threaded ring (40). Between each rubber plate and end cover there is a reinforcing plate (23).</p> |
