Wind-proof, rain-proof and environmental protection cowl

Abstract

The invention is a chimney cap which is wind preventing, weatherproof and environment protection, it is made up ball shell, in which the two main parts of the river diversion cones are connected to the smoke chimney; the river diversion cone is made up of the subjacent one and the upper sphere, the subjacent cone angle alpha is 50-90 degrees; according to the diameter of the chimney, twelve to sixty groups of river diversion boards are welded on the external surface of the subjacent cone, the angle beta between the river diversion direction and the axis of the chimney is 40-90 degrees; the gamma between the river diversion direction and the chimney axis is 20-60 degrees; thus the cold air is absorbed from the inlet on the subjacent part of the chimney cap and blended with the smoke, thus the discharged smoke is spiral type, and it has rigidity, thus the smoke can be discharged to the higher space; a ring water gathering box is arranged in the middle of the river diversion cone, and the rain gathered can be discharged fro the drainage pipe; there also has a condensed water gathering slot and drainage pipe on the lower edge of the chimney cap and the upper edge of the inlet of cold air, thus the condensed water can be discharged.

Description

technical field [0001] A windproof and rainproof chimney cap belongs to the technical field of chimney accessories, and particularly relates to the development of windproof and rainproof chimney caps for boilers and similar industrial furnaces. Background technique [0002] At present, most of the chimney caps installed on the chimney tops of small and medium-sized boilers and industrial furnaces are umbrella-shaped, and the umbrella-shaped chimney caps prevent the flue gas from being discharged to high altitudes and make the flue gas flow obliquely downward. According to the GB16297-1996 standard, as the height of the chimney increases, the allowable emission of harmful substances increases a lot, such as SO 2 , the 40m chimney allows the emission of 25Kg / h in the second-level area, while the allowable emission of the 60m chimney in the same-level area increases to 55Kg / h, an increase of 1.2 times. Therefore have the chimney of certain flue gas volume, the chimney that wil...

AI Technical Summary

Problems solved by technology

Therefore, a chimney with a certain amount of flue gas and a harmful substance to be discharged must have a chimney of a corresponding height to send it to a higher sky, and the prior art does not have a good solution

In addition, the rainproof effect of the umbrella-shaped smoke cap is poor. When it rains, rainwater pours into the chimney, causing corrosion of the chimney and equipment.

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