To provide an air conditioning device for railway vehicles that can detect an increase in pressure loss due to dust clogging of a heat exchanger and a filter when the heat exchanger and the filter are arranged in the same flow path, by distinguishing between the locations.SOLUTION: In an air conditioning device for railway vehicles, a filter is installed upstream of an indoor side heat exchanger. The air conditioning system for railway vehicles has an airflow reduction evaluation system that detects airflow reduction without using fan power on the basis of the temperature of the heat exchanger and temperature and humidity information of the air before and after passing through the heat exchanger. It also has a dust accumulation location identification system that determines whether the cause of the airflow reduction is dust accumulation in the heat exchanger or the filter or both, and when the airflow reduction evaluation system detects a predetermined airflow reduction, the dust accumulation location identification system identifies the dust accumulation location and indicates the location, thereby prompting cleaning of the heat exchanger or the filter.SELECTED DRAWING: Figure 3
【課題】熱交換器とフィルタが同一流路上に配置されているときに、熱交換器とフィルタの埃詰まりに起因する圧力損失増加について場所を区別して検出できる軌条車両用空気調和装置を提供する。【解決手段】鉄道車両向け空気調和装置であって、フィルタは、室内側熱交換器の風上に設置されている。熱交換器の温度と、熱交換器を通過する前後の空気の温度と湿度情報から、ファン電力を用いず風量低下を検出する風量低下評価システムを有し、かつその風量低下の要因が熱交換器またはフィルタまたはその両方の埃蓄積であるかを判断する、埃堆積場所識別システムを有し、かつ前記風量低下評価システムが所定の風量低下を検出した場合に、前記埃堆積場所識別システムにて埃堆積場所を識別し、その場所を指示することで熱交換器またはフィルタの清掃を促す表示を行う。【選択図】図3
AIR CONDITIONING DEVICE FOR RAILWAY VEHICLES
軌条車両用空気調和装置
2024-12-26
Patent
Electronic Resource
Japanese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Air conditioning railway vehicles
British Library Conference Proceedings | 1996
|AIR CONDITIONING MANAGEMENT SYSTEM FOR RAILWAY VEHICLES, AND RAILWAY VEHICLE AIR CONDITIONING DEVICE
European Patent Office | 2023
|Air conditioning of railway vehicles
Engineering Index Backfile | 1936
|AIR CONDITIONING MANAGEMENT SYSTEM FOR RAILWAY VEHICLES, AND RAILWAY VEHICLE AIR CONDITIONING DEVICE
European Patent Office | 2017
|