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水管管道加大,對水泵有什么影響?

2020-07-14 2484

  管道變大對水泵的影響,管道變大對泵的影響

  許多人認為把水泵的進(jìn)口管道變大可以提高水泵的吸程,通常需要自吸功能的水泵例如選用各類(lèi)自吸泵產(chǎn)品時(shí),實(shí)際上管道變大對水泵的影響會(huì )因為加大了管道的原因導致自吸泵自吸能力的下降。當泵型號確定,進(jìn)口管道是一定的;必須和自吸泵進(jìn)口口徑一致,雖然管道變大之后主力會(huì )變小,但是直徑變大后管道截面積會(huì )變大,因此管道里面的空氣更多,水泵不但達不到實(shí)際的吸程,反而還會(huì )降低,導致水泵效率下降。

開(kāi)平水泵

  同樣地,當小直徑管抽大泵,泵不會(huì )減少實(shí)際揚程,它會(huì )由于電阻線(xiàn)損降低升力減小,提高了實(shí)際的水頭。有人還認為,管道離心泵出口管道變大,它將大大增加電力負荷,他們認為直徑的增加,這將大大增加電力負荷,大家都知道,液體的壓力和提高水平的大小,和橫截面面積和水管的大小無(wú)關(guān),只要有一定提升,泵葉輪尺寸保持不變,不管什么樣的直徑,在葉片上的壓力的作用是肯定的。直徑增大,流量會(huì )減少由于增加的體積電阻,功率消耗也適當增加。但只要名義頭直徑如何增加泵可以正常工作也可以減少管道損失,提高泵的效率。

  文章源自:開(kāi)平水泵 http://www.canadaretailgroup.com/


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