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- 空氣加熱器加熱速度能不能控制
- 發(fā)布日期:2020年06月03日 點擊次數(shù):49 所屬分類:新聞中心
空氣加熱器廠家空氣加熱器的朋友都比較多,大部分問題都是空氣加熱器是否很節(jié)能,加熱速度能否調(diào)整?空氣加熱器溫度升高,空氣粘度增大,氣體雷諾數(shù)減小,傳熱強度減弱,空氣加熱器表面溫度升高,熱損失增大。
Air heater manufacturers have more friends, most of the problems are whether the air heater is very energy-saving, heating speed can be adjusted? Air heater temperature increases, air viscosity increases, gas Reynolds number decreases, heat transfer intensity decreases, air heater surface temperature increases, heat loss increases.
這個問題取決于空氣加熱器的結(jié)構(gòu)??諝饧訜崞鲝S家只能改變交流的頻率,這樣會改變電機的轉(zhuǎn)速,空氣加熱器不轉(zhuǎn)動,熱水器的頻率不控制加熱速度。我們有兩種比較簡單的方法,變壓器電壓變化小,優(yōu)點是多級調(diào)節(jié),缺點是電路結(jié)構(gòu)比較復(fù)雜,生產(chǎn)成本高。半波整流器是用來改變交流電的值,以達到改變加熱功率和加熱速度的目的。該方法電路結(jié)構(gòu)簡單,操作方便??諝饧訜崞鞯募訜崴俣戎饕沁@樣的,應(yīng)該是合理的。想要提高空氣熱交換器的整體效率,我們可以做到的有:一是通過漸開線形狀或阿基米德渦線,對風(fēng)機和擋板形狀進行適當(dāng)調(diào)整,二是將正方形的外形進行切角處理,使其成為蝸殼,來降低風(fēng)阻大小。這樣,通過以上這兩個措施,可以提高空氣熱交換器的整體效率,來達到目的。
This problem depends on the structure of the air heater. Air heater manufacturers can only change the frequency of AC, which will change the speed of the motor, air heater does not rotate, water heater frequency does not control the heating speed. We have two relatively simple methods, transformer voltage change is small, the advantage is multi-stage adjustment, the disadvantage is that the circuit structure is more complex, high production costs. Half-wave rectifier is used to change the value of AC to achieve the purpose of changing heating power and heating speed. This method has simple circuit structure and easy operation. The heating speed of air heater is mainly like this, which should be reasonable. To improve the overall efficiency of air heat exchanger, we can do: first, through the involute shape or Archimedes vortex, the shape of the fan and baffle is adjusted properly; second, the shape of the square is tangentially processed to make it a volute to reduce the size of the wind resistance. In this way, through the above two measures, the overall efficiency of air heat exchanger can be improved to achieve the goal.
- 相關(guān)標(biāo)簽:風(fēng)管系列
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