Aspirating smoke sensing device, method, and apparatus for fire detection
OwnerYongqiang Wanginventor
Life of this patent
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Abstract
An aspirating smoke sensing device, method, and apparatus for fire detection are provided, and the device is provided with a charger (2), a charge collector (3), a controller (4), an air intake structure (1), and a negative pressure source for air path detection (9). The air intake structure (1) is communicated with an input port of the charger (2), an output port of the charger (2) is communicated with the charge collector (3), an output port of the charge collector (3) is communicated with the negative pressure source for air path detection (9), and the controller (4) is electrically connected to the charge collector (3).
Claims19
An aspirating smoke sensing device for fire detection, comprising:
- a charger, a charge collector, a controller, an air intake structure, and a negative pressure source for air path detection, wherein the air intake structure is communicated with an input port of the charger, an output port of the charger is communicated with the charge collector, an output port of the charge collector is connected to the negative pressure source for air path detection, and the controller is electrically connected to the charge collector;
- the air intake structure is configured to obtain an air sample;
- the charger is configured to perform a unipolar charging on the air sample, so as to output a unipolar charged air sample;
- the charge collector is configured to obtain the unipolar charged air sample and separate charged particles with different particle-sizes in the unipolar charged air sample, so as to obtain charged particles of different particle-size grades;
- the negative pressure source for air path detection draws the air sample into the charger and the charge collector, and discharges the air sample;
- and
- the controller is configured to determine fire detection information according to charge quantities corresponding to the charged particles of different particle-size grades.
An aspirating smoke sensing method for fire detection, wherein the method is applied to an aspirating smoke sensing device for fire detection, and the device comprises a coagulator, a charger, a charge collector, a controller, an air intake structure, and a negative pressure source for air path detection;
- the method comprises:
- obtaining, by the air intake structure, an air sample;
- coagulating and enlarging, by the coagulator, micro and small particles in the air sample, the air sample passing through the coagulator;
- performing, by the charger, a unipolar charging on the air sample, so as to output a unipolar charged air sample;
- obtaining, by the charge collector, the unipolar charged air sample, and making charged particles with different particle-sizes in the unipolar charged air sample fall onto corresponding collecting electrodes;
- forming, by the negative pressure source for air path detection, a negative pressure area in the charger, the collector and pipelines, so as to draw the air sample obtained by the air intake structure into the charger and the charge collector, and discharge the air sample;
- generating, by the controller, fire detection information according to charge quantity obtained by the collecting electrodes.
Dependencies are inferred from the claim text.