Vertical layout penetrating kitchen special photoelectric smoke detector

Abstract

The invention discloses a vertical layout penetration type photoelectric smoke detector for kitchens, which includes an outer shell and a chassis arranged in the outer shell. An outer smoke collecting hood and an inner smoke collecting sleeve are installed on the chassis. The outer smoke collecting hood is installed on the chassis. The hood and the inner smoke collecting sleeve are both truncated cone-shaped hollow casings. The inner smoke collecting sleeve is located in the outer smoke collecting hood. The large diameter end of the outer smoke collecting hood is installed on the chassis, and the small diameter end of the inner smoke collecting sleeve is installed on the chassis. On the chassis, the small-diameter end of the outer smoke collecting hood is connected to the large-diameter end of the inner smoke collecting sleeve in a zero-clearance manner. The inner smoke collecting sleeve is provided with an oil drain hole, and the oil drain hole is located in the inner smoke collecting sleeve. One end of the inner wall of the smoke sleeve is the inner end, and the end of the oil discharge hole located on the outer wall of the inner smoke collection sleeve is the outer end. The direction in which the inner end points to the outer end is inclined downward. Compared with the existing technology, the present invention has the following advantages and beneficial effects: it can effectively reduce the probability of false alarms and extend the normal service life of the photoelectric smoke detector.

Description

technical field [0001] The invention relates to the field of smoke sensing equipment, in particular to a vertically arranged permeable kitchen-specific photoelectric smoke detector. Background technique [0002] The photoelectric smoke sensor measures the concentration of smoke through a beam of light and a light sensor. When the device is designed, the light beam deviates from the light sensor. When the smoke enters the sensing chamber, the smoke ions will scatter part of the light beam to On the light sensor, when the smoke concentration increases, more light beams will be scattered to the light sensor, and when enough light beams are sensed, an alarm message will be issued. [0003] The layout of the existing photoelectric smoke sensor is to arrange the emitting lamp and the photosensitive head on the chassis at the same time. Therefore, the emitting lamp and the photosensitive head are very close to the surface of the chassis. Some special structures are often used to ga...

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