RU2003131527A - METHOD FOR DETERMINING THE CONCENTRATION OF LIQUID CAVITATION NUCLEI - Google Patents

METHOD FOR DETERMINING THE CONCENTRATION OF LIQUID CAVITATION NUCLEI Download PDF

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Publication number
RU2003131527A
RU2003131527A RU2003131527/28A RU2003131527A RU2003131527A RU 2003131527 A RU2003131527 A RU 2003131527A RU 2003131527/28 A RU2003131527/28 A RU 2003131527/28A RU 2003131527 A RU2003131527 A RU 2003131527A RU 2003131527 A RU2003131527 A RU 2003131527A
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RU
Russia
Prior art keywords
cavitation
liquid
nuclei
concentration
critical pressure
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RU2003131527/28A
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Russian (ru)
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RU2256895C1 (en
Inventor
Владимир Станиславович Станев (RU)
Владимир Станиславович Станев
Асгат Галимь нович Гумеров (RU)
Асгат Галимьянович Гумеров
Шамиль Исмагилович Рахматуллин (RU)
Шамиль Исмагилович Рахматуллин
Виктор Григорьевич Карамышев (RU)
Виктор Григорьевич Карамышев
Original Assignee
Институт проблем транспорта энергоресурсов (RU)
Институт проблем транспорта энергоресурсов
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Application filed by Институт проблем транспорта энергоресурсов (RU), Институт проблем транспорта энергоресурсов filed Critical Институт проблем транспорта энергоресурсов (RU)
Priority to RU2003131527/28A priority Critical patent/RU2256895C1/en
Publication of RU2003131527A publication Critical patent/RU2003131527A/en
Application granted granted Critical
Publication of RU2256895C1 publication Critical patent/RU2256895C1/en

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Claims (1)

Способ определения концентрации ядер кавитации жидкости, включающий регистрацию критического давления кавитации в трубке с пережатием, перекачивающую жидкость в кавитационном режиме, отличающийся тем, что в проточной части трубки с пережатием проточной части устанавливают кавитационный режим запирания расхода и в зоне разрежения измеряют величину критического давления кавитации и расход жидкости, по которому определяют ее скорость в горловине трубки, полученную величину критического давления кавитации и относят ее к давлению насыщенного пара перекачиваемой жидкости, после чего наносят на предварительно построенный расчетный график зависимости относительной величины критического давления от критической скорости потока в горловине канала Wокр=θкр/Fгор в момент установления режима запирания при различной концентрации ядер кавитации и путем интерполяции определяют искомую концентрацию ядер кавитации перекачиваемой жидкости.A method for determining the concentration of liquid cavitation nuclei, including recording the critical pressure of cavitation in the tube with compression, pumping the liquid in the cavitation mode, characterized in that in the flow part of the tube with compression of the flow part, the cavitation mode of shutting off the flow is established and the critical pressure of cavitation is measured in the rarefaction zone and fluid flow rate, which determines its speed in the neck of the tube, the obtained value of the critical pressure of cavitation and relate it to the saturation pressure steam of the pumped liquid, and then plotted on a pre-built calculation graph of the relative value of the critical pressure on the critical flow velocity in the channel neck W okr = θ cr / F mountains at the time of setting the shut-off mode at different concentrations of cavitation nuclei and determine the desired concentration of nuclei by interpolation cavitation of the pumped liquid.
RU2003131527/28A 2003-10-27 2003-10-27 Method for determining concentration of liquid cavitation cores RU2256895C1 (en)

Priority Applications (1)

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RU2003131527/28A RU2256895C1 (en) 2003-10-27 2003-10-27 Method for determining concentration of liquid cavitation cores

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Application Number Priority Date Filing Date Title
RU2003131527/28A RU2256895C1 (en) 2003-10-27 2003-10-27 Method for determining concentration of liquid cavitation cores

Publications (2)

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RU2003131527A true RU2003131527A (en) 2005-04-20
RU2256895C1 RU2256895C1 (en) 2005-07-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389305A (en) * 2017-09-21 2017-11-24 清华大学 Facilitate easy-to-use multi-state controllable temperature cavitation visual experimental apparatus and experimental method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104535292B (en) * 2015-01-06 2017-03-22 北京理工大学 Cryogenic liquid cavitation experimental device
RU2653577C2 (en) * 2016-06-30 2018-05-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный университет имени М.В. Ломоносова" (МГУ) Method and device for determining the pressure of dissolved gases in liquid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389305A (en) * 2017-09-21 2017-11-24 清华大学 Facilitate easy-to-use multi-state controllable temperature cavitation visual experimental apparatus and experimental method
CN107389305B (en) * 2017-09-21 2023-09-19 清华大学 Convenient and easy-to-use multi-working-condition temperature-controllable cavitation visual experimental device and experimental method

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Publication number Publication date
RU2256895C1 (en) 2005-07-20

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20051028