3 results about "Flue-gas stack" patented technology

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.

The utility model relates to a smoke exhaust air duct hood technical field especially, relates to a kind of smoke exhaust air duct hood, including installation base, central pivot, several rotating bearings, several fan blade hubs, annular fan blade wheel, top cover, at least one of each rotating bearing is one-way bearing, installation base is equipped with several support rods, top cover is suspended and set on annular fan blade wheel top by each support rod, top cover and annular fan blade wheel top portion form top exhaust passage, the bottom of central pivot is connected with installation base, the top of central pivot is connected with top cover;The utility model can avoid the situation that annular fan blade wheel reverses and makes outdoor air pour into smoke exhaust air duct and causes exhaust difficulty, reduces the load of bearing and other rotating parts, slows down the wear of bearing and other rotating parts, can greatly reduce the instability of swing when rotating, overall smoke flow is more smooth, can improve overall exhaust effect, and smoke exhaust effect is better.

A dew-point-preventing intelligent glass tube air preheater comprises an air preheater body, a hot smoke inlet, a hot air outlet, a cold air inlet, a cold smoke outlet, a plurality of heat exchange modules, a bridging air duct, a cold smoke outlet header, a built-in spoiler glass tube, a hot smoke bypass and a flue bypass, wherein the hot smoke inlet, the hot air outlet, the cold air inlet, the cold smoke outlet, the heat exchange modules, the bridging air duct, the cold smoke outlet header, the built-in spoiler glass tube, the hot smoke bypass and the flue bypass are arranged on the air preheater body. The low-temperature section heat exchange module adopts glass tubes as heat exchange elements, spoilers are arranged in the glass tubes, and the heat transfer coefficient of an inner film is increased; and a flue gas heat bypass is arranged, so that part of hot flue gas is mixed with cold flue gas at an outlet of the air preheater. The device solves the problems of sulfuric acid dew point corrosion and carbonic acid dew point corrosion generated by an air preheater, flue gas downstream equipment, a flue and a chimney due to the fact that the exhaust gas temperature is too low, and the direction of the rotating guide plate can be adjusted by rotating the handle according to the load of a heating furnace and the pressure and flow of fluid. And fluid in the whole air preheater is distributed more uniformly, the heat exchange efficiency of the whole air preheater is improved, the dew point corrosion risk is reduced, and the service life of equipment is prolonged.