The attached furnace body air preheater discloses an air preheater attached to the boiler body surface. It is composed of air box 1, air filter 2, air outlet pipe 3, check valve 4 and wave plate 5. The air box 1 welded on the surface of the boiler body is a curved back six sided box, and the curved back is the surface 6 of the boiler body. Air filter 2 is in front of air box 1; air outlet pipe 3 is at one end of the top surface. There is a check valve 4 in the air outlet pipe 3. The furnace body surface 6 is welded with a set of wave plates 5 arranged along the height. The air outlet pipe 3 is connected with the induced draft fan of the boiler through a hose. The suction of the induced draft fan makes the outside air enter the air box 1 after being filtered by the air filter 2. It rushes into the compartment of a group of wave plates 5 and rises zigzagly at the same time. At the same time, it absorbs the heat emitted by the surface of the furnace 6 and wave plates 5 to raise the temperature. The structure is reasonable and intensive, the single preheating air device is saved, and the thermal efficiency of the boiler is improved. It is used for heating water and gas boiler.
【技术实现步骤摘要】
附着炉体空气预热器
附着炉体空气预热器涉及锅炉技术，具体涉及一种附着锅炉体表的空气预热器。
技术介绍
现行各种锅炉都是利用燃料在其中燃烧获得热能来做功的。燃料达到燃点才能燃烧，为此现代各种锅炉普遍采用空气预热器来预热参与燃烧的空气。现行工业锅炉，特别是用于发电的大型高压锅炉都有单独的大型空气预热器，体积之大可与锅炉本身比肩。民用采暖锅炉传统结构没有空气预热器。
技术实现思路
附着炉体空气预热器要解决的技术问题是：利用锅炉炉体表面的散热来预热参与燃烧的空气。采用的技术方案是：在炉体表面附着，利用炉表散热预热空气的贴附型空气预热器。附着炉体空气预热器(图1)由风箱1、空滤器2、出风管3、止回阀4、波浪片5组成。风箱1是个曲背六面箱，曲背面即炉体表面6。风箱1前面是空滤器2；顶面一端有出风管3。出风管3内有止回阀4。炉体表面6焊有一组顺高配置的波浪片5。出风管3经软管与锅炉引风机相连，锅炉运行时，引风机的吸力使外界空气经空滤器2过滤后进入风箱1内，迎面冲在一组波浪片5的间隔空间，一边沿波...
【技术保护点】
1.附着炉体空气预热器，包括出风管(3)，其特征是：还包括风箱(1)、空滤器(2)、止回阀(4)、波浪片(5)；风箱(1)是个曲背六面箱，曲背面即炉体表面(6)；风箱(1)前面是空滤器(2)，顶面一端有出风管(3)；出风管(3)内有止回阀(4)；炉体表面(6)焊有一组顺高配置的波浪片(5)。/n
【技术特征摘要】
1.附着炉体空气预热器，包括出风管(3)，其特征是：还包括风箱(1)、空滤器(2)、止回阀(4)、波浪片(5)；风箱(1)是个曲背六面箱，曲背面即炉体表面(6)；风箱(1)前面是空滤器(2)，顶面一端有出风管(3)；出风管(3)内有止回阀(4)；炉体表面(6)焊有一组顺高配置的波浪片(5)。
2.根据权利要求1所述的附着炉体空气预热器，其特征是：波浪片(5)用不锈钢板造，垂直焊于炉体表面(6)；配置面积占到筒形炉体表面的近一半。
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