IP Library Granted Patent US 8,292,992
Granted Patent B2
US 8,292,992 · App. 12/021,666 · Granted Oct 23, 2012

Flue gas desulfurization apparatus

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Quick Facts
Patent No.
US 8,292,992
App. No.
12/021,666
Granted
Oct 23, 2012
Kind
B2
Abstract

A flue gas desulfurization apparatus includes an absorption tower that absorbs sulfur oxide in a flue gas, and drift suppression members that are arranged near a bend portion of a purified gas exhaust passage arranged at an outlet portion of the absorption tower, the drift suppression members serving to collect mist particles.

Claims (25)

1. A flue gas desulfurization apparatus comprising:

an absorption tower that absorbs sulfur oxide in a flue gas; and

drift suppression members that are arranged near a bend portion of a purified gas exhaust passage arranged at an outlet portion of the absorption tower, the drift suppression members serving to collect mist particles, wherein

the drift suppression members are resisting members, and

the resisting members are arranged at a downstream side of a mist eliminator immediately before the purified flue gas reaches the bend portion, at an upstream side of the bend portion, and at a side of an inside corner of the bend portion.

2. A flue gas desulfurization apparatus comprising:

an absorption tower that absorbs sulfur oxide in a flue gas; and

drift suppression members that are arranged near a bend portion of a purified gas exhaust passage arranged at an outlet portion of the absorption tower, the drift suppression members serving to collect mist particles, wherein

the drift suppression members are resisting members, and

the resisting members are formed as laminated members each including two portions, and at least one of the two portions is slidable against another portion of the two portions.

3. The flue gas desulfurization apparatus according to claim 1 or 2 , wherein

the drift suppression members are resisting members, and

the resisting members have sectional shapes of at least one of a round shape, rectangular shape, H-shape, I-shape, L-shape, and a semicircular-arch-like shape.

4. A flue gas desulfurization apparatus comprising:

an absorption tower that absorbs sulfur oxide in a flue gas; and

drift suppression members that are arranged near a bend portion of a purified gas exhaust passage arranged at an outlet portion of the absorption tower, the drift suppression members serving to collect mist particles;

wherein the drift suppression member has plural small holes for collecting a mist, and a cavity and a mist reservoir for collecting mist water.

5. A flue gas desulfurization apparatus comprising:

an absorption tower that absorbs sulfur oxide in a flue gas; and

drift suppression members that are arranged near a bend portion of a purified gas exhaust passage arranged at an outlet portion of the absorption tower, the drift suppression members serving to collect mist particles;

wherein the drift suppression member is a damper member having a vane at least on one side.

6. The flue gas desulfurization apparatus according to any one of claims 1 , 2 , 4 and 5 ,

wherein the drift suppression member has a mist sensor for measuring a mist in a purified gas.

7. The flue gas desulfurization apparatus according to any one of claims 1 , 2 , 4 and 5 , further comprising

a mist sensor that is arranged inside the purified gas exhaust passage to measure a mist in the purified gas.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVING PATENT APPLICATION NUMBER 11921683 PREVIOUSLY RECORDED AT REEL: 054975 FRAME: 0438. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded May 26, 2023
From: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
To: MITSUBISHI POWER, LTD.
Reel/Frame 063787/0867 →
CHANGE OF NAME Recorded Jan 13, 2021
From: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
To: MITSUBISHI POWER, LTD.
Reel/Frame 054975/0438 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 26, 2015
From: MITSUBISHI HEAVY INDUSTRIES, LTD.
To: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Reel/Frame 035101/0029 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2008
From: SATO, TOSHIHIRO; ODA, MANABU; IWASHITA, KOICHIRO; OCHI, EIJI; OKINO, SUSUMU; SHINODA, TAKEO; USHIKU, TETSU
To: MITSUBISHI HEAVY INDUSTRIES, LTD.
Reel/Frame 020751/0287 →