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2 results about "Flue-gas stack" patented technology
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A flue-gas stack, also known as a smoke stack, chimney stack or simply as a stack, is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air. Flue gases are produced when coal, oil, natural gas, wood or any other fuel is combusted in an industrial furnace, a power plant's steam-generating boiler, or other large combustion device. Flue gas is usually composed of carbon dioxide (CO₂) and water vapor as well as nitrogen and excess oxygen remaining from the intake combustion air. It also contains a small percentage of pollutants such as particulate matter, carbon monoxide, nitrogen oxides and sulfur oxides. The flue gas stacks are often quite tall, up to 400 metres (1300 feet) or more, so as to disperse the exhaust pollutants over a greater area and thereby reduce the concentration of the pollutants to the levels required by governmental environmental policy and environmental regulation.
An exhaust gas purification apparatus for an engine
This invention discloses a flue gas purification device for engines, relating to the field of flue gas purification technology. It includes a flue gas stack with a vibration damping mechanism installed on its surface and a gas washing mechanism inside. A filter mechanism is installed on the top of the gas washing mechanism. In this invention, engine flue gas is discharged into the device by an operator, dispersed to a riser pipe via a distribution ring, and a baffle rises under the action of the flue gas. When exhaust stops, the riser pipe is blocked to prevent backflow. As the flue gas rises, it is slowed by the horizontal and vertical plates of the induced draft plate, cooled by contact with water, and impurities are adsorbed. It then enters the filter mechanism, where fine impurities are filtered out by a dust filter. The impurities fall into a dust collection cylinder via a scraper. Next, the flue gas enters a chemical treatment component, where it reacts with chemicals inside a shroud ring after passing through the filter screen to remove harmful substances. The upper and lower staggered plates of the shroud ring extend the travel to enhance the reaction, and the shroud ring is removable for easy replacement of chemicals. Vibrations generated by the engine are absorbed by a floating ring and elastic element inside the shroud ring.
Owner:HANGZHOU HUAIYU INNOVATION INFORMATION TECHNOLOGY CO LTD