A kind of smoke alarm detection smoke box

Abstract

The invention discloses a smoke alarm detection box which comprises a main box and a correction rack, wherein the correction rack is mounted on the main box; the main box is provided with a control cabinet; the control cabinet is used for controlling smoke to enter the main box and detecting and controlling the concentration of smoke; a tested element is mounted inside the correction rack; a flue through which the smoke circulates is formed inside the main box. Compared with the prior art, the smoke alarm detection box has the advantages that the structure is simple and reliable, the manufacturing is convenient, the cost is low, and smoke flow which circulates uniformly and stably can be generated, so that a smoke alarm can be precisely detected.

Description

technical field [0001] The invention relates to an alarm detection system, in particular to a smoke alarm detection smoke box. Background technique [0002] Smoke alarm, also known as fire smoke alarm, smoke sensor, smoke sensor, etc. Generally, independent, physical product battery-powered, or AC-powered batteries are used as backup power, and those that can emit sound and light indications when ready-made alarms are called independent smoke alarms. The smoke alarm is composed of two parts: one is an induction sensor used to detect smoke, and the other is an electronic speaker with a very loud sound, which can alert people in time in case of danger. The smoke alarm uses the positive and negative ions produced by the ionization of the radioactive source americium to move to the positive and negative electrodes respectively under the action of an electric field. Under normal circumstances, the current and voltage of the inner and outer ionization chambers are stable. Once ...

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Problems solved by technology

[0004] This kind of detection method is very backward, and the smoke in the box is rushed in by the airflow, so the smoke concentration inside the box is uneven, and the smoke alarm is placed at a fixed position and can only measure the smoke concentration there, seriously. Affected the accuracy of detection

In addition, the mixing and agitation of the smoke airflow inside the box is very strong, so when the smoke alarm is detected, the detected value jumps greatly

Moreover, the position of the sensor installed inside the smoke box is not the same as the position of the smoke alarm. Therefore, under the influence of the above two factors, the smoke concentration detected by the sensor and the smoke alarm will theoretically be different. The same, and the error between the two is also random and cannot be adjusted later

Therefore, such a detection method is inaccurate

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