| 摘要 |
<p>An apparatus for heating and controlling the process temperature in a tunnel pasteuriser, in particular for packaged food products, in which the tunnel, provided with a conveyor able to advance the product, is substantially subdivided into a first pre-heating area, into a second pasteurisation heat treatment area and a third area where the product is cooled. <??>The apparatus is provided at least with a heat exchanger comprising a primary loop and a plurality of secondary loops, each of which is connected to the hydraulic loop of each sub-area. Each secondary loop is further provided with servo-controlled modulating valves which serve as means for controlling the temperature of the water of the sprinkler of each sub-area. <IMAGE></p> |
