page_head_bg

nkhani

Mivuvu mu madzi mankhwala mavuto anthu ambiri, debug oyambirira kuwira, kuwira pamwamba yogwira wothandizila, kuwira, kuwira, peroxide kufalitsidwa madzi mankhwala a cic ndi sanali oxidizing bactericide thovu, etc., kotero madzi mankhwala ndi imodzi mwa ntchito wamba pochotsa chotengera kuwira, pepalali likuwonetsa mfundo yochotsera thovu, kagayidwe, kusankha ndi kagwiritsidwe ntchito.

Njira yochotsera thovu

1. Njira zakuthupi
Ganizirani motengera njira za fizikisi zochotsa thovu makamaka zimaphatikizira kuyika baffle kapena mauna, kugwedezeka kwamakina, ma electrostatic, firiji, kutentha, kutulutsa nthunzi, ma radiation, kuthamanga kwapakati, kuthamanga kwapakati, kugwedezeka kwapang'onopang'ono, kutulutsa nthawi yomweyo ndi akupanga acoustic madzi (kuwongolera) , etc., mwa njira zimenezi mosiyanasiyana amalimbikitsidwa kudzera mlingo ndi madzi nembanemba pa malekezero onse a mpweya kuwira filimu ngalande, The stabilizing zinthu thovu ndi zosakwana kuvunda zinthu, ndipo chiwerengero cha thovu pang`onopang`ono amachepetsa.Koma kuipa wamba kwa njira zimenezi ndi kuti ntchito zinthu zachilengedwe zopinga, defoaming mlingo si mkulu, ubwino wagona pa kuteteza chilengedwe, mkulunso mlingo.

2. Njira zamakina
Njira zochotsera thovu pamawonekedwe amankhwala makamaka zimaphatikizansopo ma chemical reaction ndi kuwonjezera defoamer.
Njira ya Chemical reaction imatanthawuza zomwe zimachitika pakati pa ma reagents ndi zinthu zotulutsa thovu kuti apange zinthu zosasungunuka, motero amachepetsa kuchuluka kwa surfactant mufilimu yamadzimadzi ndikulimbikitsa kuphulika kwa thovu.Komabe, njira iyi ili ndi zovuta zake, monga kusatsimikizika kwa zinthu zomwe zimatulutsa thovu komanso zinthu zomwe sizingasungunuke ku zida zamakina.Tsopano njira yochotsera thovu yomwe imagwiritsidwa ntchito kwambiri m'mbali zonse za moyo ndi njira yowonjezerera chotsitsa.Ubwino waukulu wa njirayi ndikuti ndiyothandiza komanso yosavuta kugwiritsa ntchito, koma mfungulo ndiyofunikira kupeza wothandizira wotsitsa komanso wothandiza.

Mfundo ya defoamer

Defoaming agent, yemwenso amadziwika kuti defoaming agent, ali ndi mfundo izi:

1. Kuthamanga kwapamtunda kwa chithovu kumachepetsedwa, zomwe zimapangitsa kuphulika kwa chithovu
Njirayi imayamba pamene mowa wambiri kapena mafuta a masamba amagwiritsidwa ntchito pa chithovu, chomwe, chikasungunuka mu thovu, chimachepetsa kwambiri kugwedezeka kwapamwamba kumeneko.Chifukwa chakuti zinthuzi nthawi zambiri sizisungunuka m'madzi, kuchepetsa kugwedezeka kwapamtunda kumangokhala pamalo amtundu wa thovu, pamene kugwedezeka kwa pamwamba pa chithovucho sikumasintha.Gawo la kupsinjika kwapang'onopang'ono kumakokedwa mwamphamvu kumbali zonse, kukulitsidwa, ndipo pamapeto pake kumang'ambika.

2, kuwononga filimu elasticity ndi kutsogolera kuwira kuphulika
Pamene defoaming wothandizila anawonjezera kuti chithovu dongosolo, izo diffuse kwa mawonekedwe mpweya-zamadzimadzi, kupanga kukhala kovuta kwa surfactant ndi thovu okhazikika ntchito achire elasticity wa filimuyo.

3, kulimbikitsa ngalande zamadzimadzi
Defoaming wothandizila akhoza kulimbikitsa madzi filimu ngalande, chifukwa mu kuwira kuphulika, mlingo wa thovu ngalande akhoza kusonyeza bata la thovu, kuwonjezera zinthu imathandizira thovu ngalande, angathenso kuchita mbali ya defoaming.

4, kuwonjezera tinthu tating'ono ta hydrophobic kungayambitse kuphulika
Hydrophobic olimba particles padziko thovu adzakopa hydrophobic mapeto a surfactants, kuti hydrophobic particles kubala hydrophilicity ndi kulowa madzi gawo, kuti atenge mbali defoaming.

5, solubilizing thovu surfactant kungayambitse kuphulika kuphulika
Ena otsika maselo zinthu kuti sakanizani bwino ndi njira akhoza solubilize ndi kuwira surfactant ndi kuchepetsa ake ogwira ndende.Zinthu zochepa zama cell zomwe zimakhala ndi izi, monga octanol, ethanol, propanol ndi mowa wina, sizingangochepetsa ndende ya surfactant pamtunda wosanjikiza, komanso kusungunula mu surfactant adsorption wosanjikiza, kuchepetsa kumangika pakati pa mamolekyu a surfactant, motero kufooketsa kukhazikika kwa chithovu.

6. Electrolyte imasungunula magawo awiri a surfactant
Pakuti surfactant mothandizidwa ndi thovu pawiri magetsi wosanjikiza mogwirizana, bata la thovu madzi, kuwonjezera electrolyte wamba akhoza kugwetsa surfactant iwiri wosanjikiza magetsi kuchita mbali defoaming.


Nthawi yotumiza: Mar-08-2022