Radiating point-type optical fiber smoke-sensitive fire detector

Abstract

A radiating point-type optical fiber smoke-sensitive fire detector comprises a front-end detection part and a background processing part, wherein the front-end detection part comprises a smoke chamber, a transmitting card rack, a receiving card rack, a transmitting optical cable, a receiving optical cable, a transmitting plastic tube and a receiving plastic tube; and the background processing part comprises a light source, a light source modulator and a signal detection processor; the light source is a green LED, the transmitting and the receiving optical cables are communication plastic optical cables, the transmitting plastic tube and the receiving plastic tube are sleeved outside the transmitting and the receiving optical cables, the transmitting and the receiving card racks are sleeved outside the transmitting and the receiving plastic tubes, the end surfaces of both one end of the transmitting optical cable and one end of the receiving optical cable are level with openings at the top ends of the corresponding plastic tubes, the other ends are respectively connected with a light source detection processor and the signal detection processor, and the smoke chamber is covered outside the optical cables, the card racks and the plastic tubes. By adopting the design, electronic components are omitted, the radiating point-type optical fiber smoke-sensitive fire detector is suitable for inflammable and explosive occasions with strong electromagnetic radiation strength, can meet the requirements of fire-fighting alarm products, and has the advantages of high sensitivity, simple structure and low installation and maintenance costs.

Description

technical field [0001] The present invention relates to an automatic fire alarm device, in particular to a through-beam point-type optical fiber smoke detector, which is particularly suitable for eliminating defects of electronic components, reducing costs, improving sensitivity and facilitating maintenance, and has great practicality. sex. Background technique [0002] At present, the smoke detectors used for automatic fire alarm at home and abroad mainly include three types: photoelectric, ion, and infrared beam (laser). They all have many problems in use, and it is difficult to meet the needs of automatic fire alarm in today's fire protection. [0003] The problem with the photoelectric type is: Because of the electrical signal, it is not suitable for installation in places with flammable, explosive and high electromagnetic radiation intensity, and there are certain potential safety hazards Electronic components are prone to aging, and after aging, they are prone to ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems existing in the prior art of using electronic components to detect smoke, complex structure, and high production and maintenance costs, and to provide a device that prevents electronic components from detecting smoke, has a simple structure, and has low production and maintenance costs. Through-beam point-type optical fiber smoke detector

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