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公开(公告)号：US20230118991A1
公开(公告)日：2023-04-20
申请号：US17969003
申请日：2022-10-19
摘要： A method for evaluating a quasi-stationary pressure difference detectable by a sensor at a gas boiler. The gas boiler has a mixing device (4), a fan (5), a main flow regulator (3), .a control valve (2) and a safety valve (1). The sensor detects a differential pressure between a pressure (p2) at a measuring point upstream of the main flow regulator (3) and downstream of the control valve (2) and a reference pressure (p0, p1) at a reference measuring point. The sensor transmits a signal to an electronic evaluation system. The electronic evaluation system compares the differential pressure during a pre-purge phase, wherein the safety valve (1) is closed, with the differential pressure after the pre-purge phase and detects an error by the comparison.
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公开(公告)号：US20230120620A1
公开(公告)日：2023-04-20
申请号：US17968893
申请日：2022-10-19
IPC分类号： F24H15/242 , G01L23/08 , F23D14/02 , F23D14/72 , F24H1/00
摘要： A method for evaluating a sensor-detectable transient pressure difference on a gas boiler. The sensor detects a differential pressure at a measurement point upstream of the main flow restrictor (3) and downstream of the control valve (2) and a reference pressure and transmits it to the evaluation electronics. The sensor detects a differential pressure course and transmits it to the evaluation electronics, during variation of heat output and/or when the heat output is adjusted to the predetermined value. The evaluation electronics evaluates the differential pressure course over its time range and/or its frequency range. At least one characteristic value is determined and compared with a predetermined comparison value. If the characteristic value deviates from the comparison value, an error of the gas boiler is recognized.
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