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济南壁挂炉换热结构的波纹管如何强化?
2015-5-15 17:38:15

济南壁挂炉http://www.jnccnt.cn/波纹管特殊的波峰与波谷设计使管内流道截面连续不断地突变,管内流动分为等直径流速型式和弧形流速型式,冷热液体流动时会产生强烈扰动,流动状态达到充分湍流时,会极大地破坏了边界层的形成,流体主流中由于旋涡丛生,流体各部分相互混合使对流传热的主要热阻被有效地克服,管外烟气流过时形成许多小的局部旋流,因此管内外传热被同时强化,因而传热系数很高,一般为光管的2倍。
Jinan fireplace bellows special design of the peaks and valleys of the flow channel cross section continuous mutation of the inner tube, the inner tube diameter divided flow velocity pattern and curved flow rate type, a strong disturbance will produce hot and cold liquid flows, turbulent flow state to achieve full , it will greatly undermine the formation of the boundary layer, the fluid mainstream due to vortex clusters, each portion of the fluid mixed with each other so that the convection heat of the main resistance is effectively overcome the flue gas flows outside the tube formation of many small local cyclone , so the heat transfer tube inside and outside simultaneously strengthened,so that a high heat transfer coefficient, usually 2 times the light pipe.
 
济南壁挂炉http://www.jnccnt.cn/不锈钢波纹管冷凝换热器总成主要由冷凝壳体、 波纹管冷凝换热器、导流板、冷凝壳盖板等组成。济南壁挂炉高温烟气经主换热器首次换热后,温度降到140℃以下进入冷凝换热器烟气进口,沿着设定的通道流动,经二次换热后排烟温度降低到露点以下,烟气中大量水蒸气冷凝放出汽化潜热和采暖通道里的冷水进行换热,然后流经烟气出口由排烟管排出低温烟气,烟气中的水蒸气同时冷凝成水滴下落进集水盒,经排水口和中和器处理后排入下水道。
Jinan boiler condensing heat exchanger stainless steel bellows assembly consists of condensed housing, bellows condensing heat exchanger, baffles, condensing shell cover and other components. Jinan boiler flue gas temperature after the primary heat exchanger for the first time, the temperature dropped to below 140 ℃ into the condensing heat exchanger flue gas imports, along the set path flow, after the second heat exhaust gas temperature is reduced to below the dew point, a lot of water vapor in the flue gas condensate release latent heat of vaporization and heating channel in the cold water heat exchanger, flue gas then flows through the outlet from the exhaust pipe from the low temperature flue gas, flue gas water vapor condenses into water droplets falling into the same time catchment box, after the drain and into the sewer and processing.

 

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