IP Library Granted Patent US 8,382,882
Granted Patent B2
US 8,382,882 · App. 13/474,450 · Granted Feb 26, 2013

Air pollution control apparatus and air pollution control method

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Quick Facts
Patent No.
US 8,382,882
App. No.
13/474,450
Granted
Feb 26, 2013
Kind
B2
Abstract

An air pollution control apparatus according to an embodiment of the present invention includes: a stack that discharges flue gas discharged from a boiler outside; a blower that is provided downstream of the stack and draws in the flue gas; and a CO 2 recovering apparatus that recovers CO 2 in the flue gas drawn in by the blower. The stack includes a controlling unit that suppresses release of the flue gas outside from the stack and suppresses inflow of atmosphere to the stack, and the controlling unit is a channel forming unit that forms a serpentine channel through which the flue gas and the atmosphere in the stack flow.

Claims (10)

1. An air pollution control apparatus comprising:

a stack that discharges flue gas, discharged from an industrial facility, outside;

a blower that is provided downstream of the stack and draws in the flue gas; and

a CO 2 recovering apparatus that recovers CO 2 in the flue gas drawn in by the blower, wherein

the stack includes a controlling unit that suppresses release of the flue gas outside from the stack and suppresses inflow of atmosphere to the stack, and

the controlling unit is a leak suppressing unit that suppresses inflow of the atmosphere to the stack.

2. The air pollution control apparatus according to claim 1 , wherein the leak suppressing unit is at least one resistive part that is provided on a wall surface of the stack, and extends toward an exit of the stack when viewed from a cross-sectional direction in a longitudinal direction of the stack.

3. An air pollution control method using the air pollution control apparatus according to claim 1 , comprising using a density difference between flue gas discharged from the industrial facility and atmosphere flowing in from outside of the stack, the density difference being caused by a temperature difference therebetween, to prevent the flue gas from flowing outside.

4. An air pollution control method using the air pollution control apparatus according to claim 1 , comprising mixing flue gas discharged from the industrial facility and atmosphere flowing in from outside of the stack to prevent the atmosphere from flowing further inside of the stack.

5. An air pollution control method using the air pollution control apparatus according to claim 4 to prevent the flue gas from flowing outside of the stack.

Assignments (4)
CHANGE OF NAME Recorded Dec 14, 2023
From: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
To: MHI ENGINEERING, LTD.
Reel/Frame 066014/0774 →
NUNC PRO TUNC ASSIGNMENT Recorded Dec 14, 2023
From: MHI ENGINEERING, LTD.
To: MITSUBISHI HEAVY INDUSTRIES, LTD.
Reel/Frame 066014/0870 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2018
From: MITSUBISHI HEAVY INDUSTRIES, LTD.
To: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
Reel/Frame 047054/0898 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2012
From: IIJIMA, MASAKI
To: MITSUBISHI HEAVY INDUSTRIES, LTD.
Reel/Frame 028267/0277 →