Multi-blade rotary sealing cover used for opening position of pipeline

Abstract

The invention discloses a multi-blade rotary sealing cover used for the opening position of a pipeline. The multi-blade rotary sealing cover comprises an annular sealing cover arranged at the positionof an air inlet of a flue. At least two rotating shafts are transversely arranged in the annular sealing cover. The rotating shafts are parallel to the plane where the air inlet is located and can rotate. A partition plate is connected to each rotating shaft in a sleeving manner. Transmission gears are fixedly connected to the positions of the tips of the same ends of every two corresponding rotating shafts in a sleeving manner. A direction changing gear used for changing the direction is arranged between every two adjacent transmission gears. Every two adjacent rotating shafts can rotate inthe same direction through the direction changing gears. All the partition plates are made to rotate in the same direction and make contact with one another by rotating any rotating shaft so that theair inlet can be completely covered and the sealing state can be achieved. The multi-blade rotary sealing cover is simple in structure and convenient to install, and by means of the annular sealing plate structure, the air inlet of the flue can be sealed, and foreign matter can be prevented from entering the flue in the non-working state.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular to a multi-blade rotary sealing cover used at the opening of a pipe. Background technique [0002] Every day, large and small restaurants in the city will produce cooking fume, and cooking fume is a large amount of thermal oxidation decomposition products produced by cooking oil and food under high temperature conditions. When cooking, the fat is heated. When the temperature reaches the smoking point of edible oil at 170°C, the blue smoke of initial decomposition appears. As the temperature continues to rise, the decomposition speed accelerates. It has a pungent smell, and the particle size of oil fume is 0.01-0.3 microns. Every oil product has a "smoke point," which is the temperature at which it begins to smoke noticeably. The dark crude oil in the past often started to smoke above 130 degrees, but for most of today's pure and transparent oil products, this temperature is usual...

AI Technical Summary

Problems solved by technology

[0004] In view of the problem in the prior art that there is no cover plate structure on the air inlet of the flue, which causes dust to accumulate in the flue, the present invention provides a device that is installed at the air inlet of the flue and can cover the air inlet to prevent foreign matter when not in use. The sealing cover that enters the inner discharge of the flue

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