Device for temperature regulation in a wet-fermentation biogas plant, comprises a fermenter and a cogeneration unit having a heat exchanger, where the cogeneration unit and the fermenter are connected over a heating circuit

摘要

The device comprises a fermenter (1) and a cogeneration unit having a heat exchanger, where the cogeneration unit and the fermenter are connected over a heating circuit. The exhaust air path of the cogeneration unit has an additional heat exchanger and the heating circuit contains a switching valve, which enables that a heating medium e.g. water is conducted either in a normal operation (heating operation) over the cogeneration unit or in a cooling operation over the heat exchanger in the exhaust air path of the cogeneration unit. The device comprises a fermenter (1) and a cogeneration unit having a heat exchanger, where the cogeneration unit and the fermenter are connected over a heating circuit. The exhaust air path of the cogeneration unit has an additional heat exchanger and the heating circuit contains a switching valve, which enables that a heating medium e.g. water is conducted either in a normal operation (heating operation) over the cogeneration unit or in a cooling operation over the heat exchanger in the exhaust air path of the cogeneration unit. A motorically controlled three-way switching valve serves as switching valve. The heat exchanger in the exhaust air path of the cogeneration unit is hydraulically fastened at a heating circuit-fermenter-biogas plant hydraulically over pipelines, where the heat exchanger is a lamella-heat exchanger. An independent claim is included for a method for temperature regulation in biogas plant.