Title:
GAS CONCENTRATION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/105757
Kind Code:
A1
Abstract:
Provided is a gas concentration detection device in which accumulation of dust is suppressed and any worsening in detection accuracy is minimized. The present invention is provided with a cylindrical gas introduction/lead-out pipe (4) having a first end part (7) in a space (5)-side housing (1), which accommodates a gas concentration detection unit (3) and into which a gas being measured is introduced, and a second end part (8) at a position that is protruded toward the opposite side of the housing (1) from the space (5). A partition wall (9) is provided to the center inside the gas introduction pipe (4), the partition wall (9) dividing the interior of the gas introduction/lead-out pipe (4) into a gas introduction flow path (12) and a gas lead-out flow path (13) in a direction from the first end part (7) toward the second end part (8). The partition wall (9) has a third end part (10) on the space (5) side, and a fourth end part (11) at a position that is protruded from the second end part (8), the fourth end part (11) being provided with a gas guidance part (40) that forms a gas introduction port (15) and a gas lead-out port (16) that are opened over the entire surface between the fourth end part (11) and the second end part (8) in the orientation in which the gas flows.
Inventors:
OGATA KENYA (JP)
MORIKAWA MASAKI (JP)
MORIKAWA MASAKI (JP)
Application Number:
PCT/JP2022/042315
Publication Date:
May 23, 2024
Filing Date:
November 15, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01N1/00; G01N21/03; G01N21/3504
Domestic Patent References:
| WO2017043263A1 | 2017-03-16 | |||
| WO2017179648A1 | 2017-10-19 |
Foreign References:
| JPS61122545U | 1986-08-01 | |||
| JPH10170408A | 1998-06-26 | |||
| CN205175879U | 2016-04-20 |
Attorney, Agent or Firm:
KATO INT'L PATENTS & TRADEMARKS (JP)
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