US 12,303,829 B2Granted

Detoxification device and inlet nozzle

AssigneeEdwards Japan Limited

InventorsNobuo Mori, Mitsunori Abe, Masahiro Tanaka

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Abstract

A detoxification device has an inlet nozzle capable of reducing an amount of a deposit of an adhering metallic product and elongating a maintenance cycle and a detoxification device including the inlet nozzle. The inlet nozzle includes a portion adjacent to a combustor, that is cut (removed) in advance. Consequently, in the portion, an insulator made of a ceramic material is exposed. Since the ceramic material supplies a small number of electrons, even when the insulator is exposed to heat from the combustor to reach a high temperature, a reductive reaction is less likely to occur. Accordingly, even when a metallic exhaust gas is allowed to flow, the metallic exhaust gas is prevented from being precipitated as the metallic product and gradually deposited with time.

Claims4

Dependent claims

A detoxification device comprising:

a detoxification chamber;
an insulator provided adjacent to the detoxification chamber and made of an insulating material;
and
an inlet nozzle embedded in the insulator to guide an exhaust gas to be detoxified to the detoxification chamber, wherein
the inlet nozzle is located along an axial direction of the detoxification chamber, has a single casing, the single casing being in contact with the insulator and defining an unobstructed interior void, and has an axial length,
a portion of the insulator adjacent to the detoxification chamber is exposed uniformly all around in the axial direction to a path for the exhaust gas, wherein the portion has an axial length extending from the detoxification chamber to an end of the inlet nozzle where the inlet nozzle is in contact with the insulator, and
the axial length of the portion of the insulator is less than fifty percent of the sum of the axial length of the portion of the insulator and the inlet nozzle.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/972,843Filed 3 Jun 2019
Priority: JP 2018-11389814 Jun 2018
Published: US 2021/0245093 A112 Aug 2021
Granted: 20 May 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B01D 53/38
Chemical or biological purification of waste gases: removing components of undefined structure
B01D 53/76
General processes for purification of waste gases; Apparatus or devices specially adapted therefor: gas phase processes, e.g. by using aerosols
C23C 16/4412
Characterised by the method of coating: details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
F23D 14/48
Details: nozzles