One kind of hood passage detection method and detection device

The present invention relates to the field of hood, hood discloses a method for detecting passage, comprising: a first step, installation, first test prototype firmly mounted above the table, and then the heating device is placed worktable and to be located below the prototype tested; the second step, the occurrence of soot, be heated is first poured into the heating apparatus, and then turn the heating means to be heated is heated, while the open prototype tested, it properly; step , data collection, real-time observation of smoke fumes prototype case of using recording means. The present invention provides a pioneering hood passage detection method can be strictly simulated to the actual use, smoke was observed during use the oil collecting, the oil guide performance is good, and the effective detection range hood and inside the actual suction effect oil flow conditions. The present invention also provides a hood passage based on the detection method detecting means.