摘要:
A system for monitoring a percentage of filter life remaining of a filter assembly of filter-fan devices. The system uses a single thermistor that is operated in two separate modes for monitoring the filter assembly. The thermistor is positioned in the airflow of the filter-fan adjacent to the air outlet. A first current is applied to the thermistor for determining the temperature of the airflow from a first thermistor voltage. The first thermistor voltage is responsive to the first current applied to the thermistor. A second current that is greater than the first current is applied to the heat the thermistor. The temperature of the thermistor is determined from a second thermistor voltage which is responsive to the second current applied to the thermistor. The percentage of filter life remaining of the filter assembly is determined from the temperature of the airflow and the second thermistor voltage.
摘要:
L'invention a pour objet un procédé de filtration des poussières dans les effluents gazeux provenant d'un four verrier, procédé qui comprend les étapes suivantes :
→ on filtre les effluents à une vitesse de traversée d'au moins 0,1 m/s à l'aide d'au moins un média filtrant en aval du four, → on régénère le média filtrant par lavage à l'aide d'un solvant, notamment à base d'eau, apte à dissoudre et/ou drainer la majorité des poussières filtrées.
摘要:
Particulate accumulation in a particulate filter (13) in the exhaust line (9) of an engine is calculated by an electronic engine control unit (E). When the estimated accumulated particulate mass (M acc,i ) exceeds a predetermined threshold (TH1), an automatic regeneration step of the filter (13) is activated, by additional fuel injections and consequent combustion of the particulate in the filter (13). The estimated accumulated particulate mass (M acc,i ) is calculated as the sum of estimated instantaneous accumulated particulate masses (m si ) calculated as a function of a first map based on operating conditions of the engine (MP, IN). An actual instantaneous burned particulate mass is calculated as a function of values (T6, T5 ,V, T_env) indicative of the state of the filter (13). As a function of the sum (M b,r ) of actual instantaneous burned particulate masses, and as a function of the sum (M acc,i ) of instantaneous accumulated particulate masses, a temporary correction factor representing an error between said theoretical value (M acc,i ) and said actual value (M b,r ) is calculated. The temporary correction factor is stored in a second map of correction factors, based on the engine operating conditions. During the accumulation step, the estimated instantaneous particulate mass (m si ), calculated according to the first map based on the operating conditions of the engine, is multiplied by a correction factor (k) calculated according to the second map based on the operating conditions of the engine.
摘要:
In one embodiment, a turbine system includes an intake section 16 including a filter house, the filter house including at least one filtration stage, each of the at least one filtration stage, including a filter. The turbine system also includes one or more sensors 22 disposed in the intake section, and a processor 38 configured to receive performance data related to testing conditions of the intake section, sensor data from the one or more sensors, local conditions data, or some combination thereof, predict a filter degradation rate for the filter using a filter degradation prediction model that provides a function of performance of the filter based on the performance data, the sensor data, the local conditions data, or some combination thereof, and perform one or more preventative actions based on the filter degradation rate prediction.
摘要:
Die Erfindung betrifft ein Verfahren zur Bestimmung eines Beladungsgrades (B F ) eines von einem Fluid durchströmten Filtermediums (12) einer Filtervorrichtung (14) an einem Fahrzeug (10). Zur Bestimmung des Beladungsgrades (B F ) wird eine Betriebs-Information (C F , dp F ) der Filtervorrichtung (14) in Abhängigkeit mindestens einer während des Betriebes des Fahrzeugs (10) überwachten Betriebsgröße (n, T, Q, η, p, dp G , dp Diff ) ermittelt. Eine vordefinierte Referenz-Information (C F,ref , dp F,ref (B)) der Filtervorrichtung (14) wird mit der Betriebs-Information (C F , dp F ) verglichen. Aus dem Vergleichsergebnis wird der Beladungsgrad (B F ) abgeleitet.
摘要:
The invention relates to a rescue terminal for providing access to an air filter in case of an emergency, comprising a control system configured and provided to be activated upon a detection of a case of an emergency and having: at least one signaling device configured and provided to emit a signal upon activation of the control system; and a communication unit configured and provided for at least one of receiving and transmitting information indicative for a case of an emergency. The rescue terminal further comprises a receiving housing being configured and provided for receiving an air filter device. The invention further relates to an air filter device and a rescue system. The rescue terminal, the air filter device and the rescue system enable a user of the air filter device to quickly access the air filter device in case of an emergency.
摘要:
Provided is a DPF system that is more convenient than a conventional DPF system. The DPF system includes: a DPF 25 constituted by a CSF 29 that is connected to an exhaust pipe 20 of a diesel engine 10 in order to collect PM in exhaust gas, and a DOC 28 provided on an upstream side of the CSF 29; and temperature sensors 30a, 30b provided respectively on an upstream side and a downstream side of the DOC 28. When a PM accumulation amount in the CSF 29 exceeds a fixed amount, DPF regeneration is performed by setting a temperature detected by the upstream side temperature sensor 30a at or above a first threshold and setting a temperature detected by the downstream side temperature sensor 30b at or above a second threshold. When a breakdown is detected in the upstream side temperature sensor 30a, the second threshold is modified upward.