| 摘要 |
Apparatus for sterilizing, pasteurizing, and/or disinfecting a pumpable or free-flowing medium includes at least one heating source, a temperature holding device which is monitored by means of a thermal sensor, and an outlet. The pressure required for the treatment is maintained within the temperature holding device by at least one unit conveying member in opposition to a resistance pressure. Two conduit branches are connected to a conduit located downstream of the temperature holding device. A restriction member and a shut-off member are disposed in each of the two conduit branches, with one conduit branch extending to the outlet while the other conduit branch leads to the feed conduit upstream from the heating source as a return conduit. The restriction member is hereby part of a heat exchanger which guides medium from the temperature holding device in counterflow to a flow of medium to the heating source.
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