IP Library Granted Patent US 12710231
Granted Patent B2
US 12710231 · App. 17/988,358 · Granted Aug 18, 2026

Integration chamber for mixing booth discharge gas and oven discharge gas and VOC removal system utilizing the same

Inventors: Sungyub Na (Ulsan, KR); Wootae Lim (Hwaseong-si, KR); Kwangshin Hwang (Gimpo-si, KR); Sangkun Han (Incheon, KR); Leerang Kim (Gimpo-si, KR); Hami Lee (Incheon, KR)
Assignees: Hyundai Motor Company; Kia Corporation; Sangwone E&I Co., Ltd.
F26B21/30B01D50/20B05B16/20B05B16/60F26B2210/12
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Quick Facts
Patent No.
US 12710231
App. No.
17/988,358
Granted
Aug 18, 2026
Kind
B2
Abstract

A volatile organic compound (VOC) removal system for removing VOC generated during a painting process of a vehicle body includes a paint spraying booth where paint is applied to the vehicle body, a paint baking oven for fixing the paint on the vehicle body applied with the paint in the paint spraying booth, an integration chamber for receiving a booth discharge gas from the paint spraying booth through a booth gas inflow line, to receive an oven discharge gas from the paint baking oven through an oven gas inflow line, and to form a mixture gas by mixing the received booth discharge gas and the received oven discharge gas, a VOC concentrator for forming a process gas by concentrating the mixture gas supplied from the integration chamber to increase a VOC concentration, and a VOC removing apparatus for removing VOC from the process gas supplied from the VOC concentrator.

Claims (48)

1 . An integration chamber used in a volatile organic compound (VOC) removal system for removing VOC generated in a painting process of a vehicle body, the integration chamber comprising:

a booth gas inflow line into which a booth discharge gas flows from a paint spraying booth;

an oven gas inflow line into which an oven discharge gas flows from a paint baking oven, wherein the oven gas inflow line is connected to an interior of the booth gas inflow line to form an integrated line;

a mixing portion configured to form a mixture gas by mixing the booth discharge gas and the oven discharge gas, wherein the integrated line is arranged at an upstream side of the mixing portion such that the booth gas inflow line surrounds the oven gas inflow line, and wherein the mixing portion comprises a vortex generator at an end of the integrated line;

a separating portion configured to separate a liquified VOC from the mixture gas having passed through the mixing portion; and

a filter portion configured to filter a foreign substance from the mixture gas having passed through the separating portion.

2 . The integration chamber of claim 1 , wherein the integrated line is connected to the mixing portion on an upper surface or a side surface of the mixing portion.

3 . The integration chamber of claim 1 , wherein the separating portion comprises a drain portion configured to discharge the liquified VOC.

4 . The integration chamber of claim 3 , wherein the separating portion comprises a vertical plate configured to block the liquified VOC from moving to the filter portion.

5 . The integration chamber of claim 4 , wherein the vertical plate has an upper end inclined toward the upstream side.

6 . The integration chamber of claim 4 , wherein the separating portion comprises:

a pre-chamber configured to have the mixture gas move vertically; and

a main chamber configured to have the mixture gas horizontally pass through at a downstream side of the pre-chamber, wherein the pre-chamber comprises a horizontal plate horizontally disposed in the pre-chamber, and the vertical plate is vertically disposed in the main chamber.

7 . The integration chamber of claim 1 , wherein the filter portion comprises a plurality of filters disposed in series in a flowing direction of the mixture gas.

8 . A volatile organic compound (VOC) removal system, the VOC removal system comprising:

a paint spraying booth configured to apply paint to a vehicle body;

a paint baking oven configured to fix the applied paint on the vehicle body;

an integration chamber comprising:

a booth gas inflow line configured to receive a booth discharge gas flowing from the paint spraying booth;

an oven gas inflow line configured to receive an oven discharge gas flowing from the paint baking oven;

a mixing portion configured to form a mixture gas by mixing the booth discharge gas and the oven discharge gas;

a separating portion configured to separate a liquified VOC from the mixture gas having passed through the mixing portion; and

a filter portion configured to filter a foreign substance from the mixture gas having passed through the separating portion;

a VOC concentrator configured to form a process gas by concentrating the mixture gas supplied from the integration chamber to increase a VOC concentration; and

a VOC removing apparatus configured to remove VOC from the process gas supplied from the VOC concentrator.

9 . The VOC removal system of claim 8 , further comprising:

a booth gas exhaust line connected to the booth gas inflow line, the booth gas exhaust line being configured to exhaust the booth discharge gas from the booth gas inflow line to an atmosphere;

a booth gas exhaust adjustment valve disposed on the booth gas exhaust line, the booth gas exhaust adjustment valve being configured to adjust an amount of the booth discharge gas flowing through the booth gas exhaust line;

a booth gas inflow line valve disposed on the booth gas inflow line, the booth gas inflow line valve being configured to adjust an amount of the booth discharge gas flowing through the booth gas inflow line; and

an oven gas inflow line valve disposed on the oven gas inflow line, the oven gas inflow line valve being configured to adjust an amount of the oven discharge gas flowing through the oven gas inflow line.

10 . The VOC removal system of claim 8 , wherein the oven gas inflow line is connected to an interior of the booth gas inflow line to form an integrated line, the integrated line being formed at an upstream side of the mixing portion such that the booth gas inflow line surrounds the oven gas inflow line.

11 . The VOC removal system of claim 10 , wherein the integrated line is connected to the mixing portion on an upper surface or a side surface of the mixing portion.

12 . The VOC removal system of claim 10 , wherein the mixing portion comprises a vortex generator at an end of the integrated line.

13 . The VOC removal system of claim 8 , wherein the separating portion further comprises a drain portion configured to discharge the liquified VOC.

14 . An integration chamber used in a volatile organic compound (VOC) removal system for removing VOC generated in a painting process of a vehicle body, the integration chamber comprising:

a booth gas inflow line into which a booth discharge gas flows from a paint spraying booth;

an oven gas inflow line into which an oven discharge gas flows from a paint baking oven;

a mixing portion configured to form a mixture gas by mixing the booth discharge gas and the oven discharge gas;

a separating portion configured to separate a liquified VOC from the mixture gas having passed through the mixing portion, wherein the separating portion comprises:

a pre-chamber configured to have the mixture gas move vertically, and comprising a horizontal plate horizontally disposed in the pre-chamber; and

a main chamber configured to have the mixture gas horizontally pass through at a downstream side of the pre-chamber, and comprising a vertical plate vertically disposed in the main chamber; and

a filter portion configured to filter a foreign substance from the mixture gas having passed through the separating portion, wherein the vertical plate of the main chamber is configured to block the liquified VOC from moving to the filter portion.

15 . The integration chamber of claim 14 , wherein the oven gas inflow line is connected to an interior of the booth gas inflow line to form an integrated line, the integrated line being formed at an upstream side of the mixing portion such that the booth gas inflow line surrounds the oven gas inflow line.

16 . The integration chamber of claim 15 , wherein the integrated line is connected to the mixing portion on an upper surface or a side surface of the mixing portion.

17 . The integration chamber of claim 15 , wherein the mixing portion comprises a vortex generator at an end of the integrated line.

18 . The integration chamber of claim 14 , wherein the separating portion further comprises a drain portion configured to discharge the liquified VOC.

19 . The integration chamber of claim 14 , wherein the vertical plate has an upper end inclined toward an upstream side.

20 . The integration chamber of claim 14 , wherein the filter portion comprises a plurality of filters disposed in series in a flowing direction of the mixture gas.