The composition of a new aluminum alloy breathable cap in Hangzhou aluminum alloy sinking system

　In continuous production practice, a new type of aluminum alloy smoke cap can not only maintain good smoke exhaust effect, but also prevent wind and rain. Next, we will introduce the composition of the new aluminum alloy breathable cap in the Hangzhou aluminum alloy sinking system.

　　The new smoke cap comprises a supporting part, the lower part of which is fixed at the cigarette holder, and the upper part extends out of the cigarette holder to provide upward rotating support; The water baffle is concave and has a downsloping opening, fixed to the upper part of the support and covered at a predetermined distance above the chimney opening; The baffle can be rotated around the central axis of the rotating support under the upward rotating support provided by the supporting part. The supporting part includes at least one supporting layer and a rotating axis; The support is fixed horizontally in the chimney,and the rotating axis coincides with the central axis of the chimney, and the upper part extends out of the chimney mouth. The bracket provides support for the vertical setting of the rotating shaft. The bracket is a cross bracket, a herringbone bracket or a five-pointed star bracket.

　　The rotating shaft of the aluminum alloy breathable cap is a solid metal rod; The support part consists of a cross-shaped support welded to the outside of the chimney inner wall. The water baffle is triangular, cylindrical or multilateral cylindrical, and the opening is inclined downward; The water baffle is welded on the top of the rotating support of the support, and the welding point is the central balance point of the water baffle. The water baffle is a downward-sloping triangular opening, which is divided into a left wing part and a right wing part at an obtuse Angle. The left and right sides are rectangular metal plates, bent downon both sides of the center line in the direction of length and treated by cutting and chamfering. Between the ridge of the water baffle and the central axis of the chimney; The distance between the baffle and the chimney opening is. Multiplied by the diameter of the chimney opening, the horizontal projection of the baffle covers the horizontal projection of the chimney opening. 

　　It can be seen from the above scheme that the smoke cap of the utility model has the following beneficial effects: simple structure, low failure rate, low manufacturing and maintenance cost, no increase in flue gas emission distance, good flue gas emission effect, stability plate not only helps to guide, but also plays the role of a damper, so as to prevent the axial fluctuation of the chimney cap as a whole.