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Co je pístové čerpadlo? Jak to funguje?

Účinek pístních čerpadel je tvar kapaliny tlačí vpřed pístem ve válci čerpadla. V tomto ohledu pístová čerpadla pracují ve formě tlaku nebo odstranění kapaliny. Tato čerpadla pracují vodorovně nebo svisle. Jednoduchá účinná čerpadla jsou vyráběna jako píst. Pístový válec je dodáván s pístem čerpadla a těsnicími prvky a píst je součástí těchto těsnicích prvků v dopředném pohybu. Horní strana čerpadla je vybavena sacím ventilem na dně tlakového ventilu. Kromě toho je tlaková strana vypouštěcího potrubí umístěna na sací straně. Na konci sací straně, je sací pouzdro nebo braded koš udržet pyl od čerpadla. Před sacím úl, základní ventil vyplývá, že sací korunka je udržována plná tekutin.

 

Rozložení síly v pístních čerpadel je velmi variabilní v sání a tlaku. Aby se předešlo této nepříznivé situaci, aby se zajistilo lepší rozdělení sil a zajistit stejné objemové proudění, dvě, tři a více pistolí jsou umístěny vedle sebe, vyvažování síly přicházející z Kranka, poskytovat homogenní rozdělení. Tímto způsobem, multi-válec čerpadla jsou používány especcially pro vysokotlaká čerpadla.

 

S připojením čerpadla, je vzduchový kotel vybaven velmi dlouhou dobu a čerpadlo je hladký a hladký provoz proti tlakům Sud stoupá nebo nevyvážené síly distribuce je následoval.

 

Gradient čerpadla se používají k regulaci pravidelnosti průtoku vody a pohyb pístu tam a zpět do jisté míry.

 

Pístová čerpadla využít tlaku pístu použít tlak a čerpadlo na kapaliny. Pokud byl píst čerpadla vyprázdněn, je objem zvýšen a proces komprese se provádí zmenšením. Kapalina začne vytékat s nízkým tlakem nebo sací ventil otevření pístu, který se skládá z prázdného objemu Cylonů. Látka kapaliny pokračuje až do mrtvého bodu v sacím období pístu. S tekutým účinkem zachyceným v objemu návratu pístu začne tlačit z otevíracího ventilu na odtokovou stranu tekutiny. Tento tah bude opět pokračovat do mrtvého bodu pístu. Mezitím píst splňuje veškeré tření a counterpressures. Po tom, druhý tah začíná znovu. Způsob jednoduchého efektivního pístového čerpadla je vidět ve schematickém principu obrazu.


 

V theoretitical průtoku,

 

Surfacce plocha pístu,

Q oblast pístových pák,

 

S pístový hladil,

 

Počet tahů nebo klikového hřídele je rotace otáček. V jednoduchých-k-účinek pístových čerpadel, kapalina je stlačena rovnoměrně v každém tahu a stejný výkon čerpadla je nutné v každém období vybití.

 

Počet tras n závisí, zdvih pístu s. U vloženého zdvihu pístu je třeba snížit počet otáček. kde S. N = 1....... je kolem 2 m/s, nebere velké hodnoty v lineárním pohybu pístu. Numerická korelace mezi zdvihem pístu a počtem otáček:

 

S M 1-0.6-0.4 > 0,4

 

n d/SN 0.7-1.2 1.7-4

 

D mm > 50 50-150 > 150

 

CM m/s 0.2-0.5 0.5-0.9 1-2

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