Title:
AIR SUCTION TYPE SMOKE SENSING FIRE DETECTION APPARATUS, METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/169327
Kind Code:
A1
Abstract:
An air suction type smoke sensing fire detection apparatus, method and device. A charge electric appliance (2), a charge collector (3), a controller (4), an air inlet structure (1), and a detection air path negative pressure source (9) are arranged. The air inlet structure (1) is in communication with an input end of the charge electric appliance (2). An output end of the charge electric appliance (2) is in communication with the charge collector (3). An output end of the charge collector (3) is in communication with the detection air path negative pressure source (9). The controller (4) is electrically connected to the charge collector (3). The air inlet structure (1) is used for obtaining an air sample (S401). The detection air path negative pressure source (9) forms a negative pressure region in the charge electric appliance (2), the charge collector (3), and a pipeline, and sucks the air sample obtained by the air inlet structure (1) into the charge electric appliance (2) and the charge collector (3) (S402). The charge electric appliance (2) is used for performing unipolar charge on the air sample to output the unipolar charge air sample (S403). The charge collector (3) is used for obtaining the unipolar charge air sample and separating charged particles having different particle sizes in the unipolar charge air sample to obtain charged particles having different particle sizes (S404). The controller (4) is used for determining fire detection information according to the charge amount corresponding to the charged particles having different particle sizes (S405).
Inventors:
WANG YONGQIANG (CN)
Application Number:
PCT/CN2020/121890
Publication Date:
September 02, 2021
Filing Date:
October 19, 2020
Export Citation:
Assignee:
WANG YONGQIANG (CN)
International Classes:
G08B17/113
Domestic Patent References:
| WO2008142801A1 | 2008-11-27 |
Foreign References:
| CN101809426A | 2010-08-18 | |||
| CN102500559A | 2012-06-20 | |||
| CN111402540A | 2020-07-10 | |||
| CN110479066A | 2019-11-22 | |||
| CN101675496A | 2010-03-17 | |||
| CN107185344A | 2017-09-22 | |||
| CN105354972A | 2016-02-24 | |||
| CN102257543A | 2011-11-23 |
Other References:
See also references of EP 4092644A4
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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