SU691595A1 - Method of determination of cavitation intensity - Google Patents

Method of determination of cavitation intensity

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Publication number
SU691595A1
SU691595A1 SU782622245A SU2622245A SU691595A1 SU 691595 A1 SU691595 A1 SU 691595A1 SU 782622245 A SU782622245 A SU 782622245A SU 2622245 A SU2622245 A SU 2622245A SU 691595 A1 SU691595 A1 SU 691595A1
Authority
SU
USSR - Soviet Union
Prior art keywords
determination
intensity
destruction
degree
cavitation
Prior art date
Application number
SU782622245A
Other languages
Russian (ru)
Inventor
Юрий Викентьевич Козулин
Валерий Геннадьевич Пивоваров
Original Assignee
Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности filed Critical Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности
Priority to SU782622245A priority Critical patent/SU691595A1/en
Application granted granted Critical
Publication of SU691595A1 publication Critical patent/SU691595A1/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Description

(54) СПОСОБ ОПРЕДЕЛЕНИЯ ИНТЕНСРШНОСТИ КАВИТАЦИИ(54) METHOD FOR DETERMINING CAVITATION INTENSITY

II

Изобретение относитс  к области исследований  влений в движущемс  потоке жидкости и может бьгть использовано в гидромашиностроении при выборе эксплуатационных режимов дл  различных гидромашин .The invention relates to the field of research of appearances in a moving fluid flow and can be used in hydraulic engineering when selecting operating modes for various hydraulic machines.

Известен способ определени  интенсивности кавитации путем воздействи  рабочей жидкостью на испытываемый образец и последующего определени  степени его разрушени  1. Недостатками указанного способа  вл ютс  длительность и мала  точность определени  интенсивности кавитации . Кроме того, при изменении режима движени  жидкости локализаци  кавитационных областей измен етс . Это вынуждает мен ть место.установки контрольных образцов и также снижает точность эксперимента .The known method of determining the intensity of cavitation by exposing the test sample to the test sample and then determining the degree of its destruction. The disadvantages of this method are the duration and low accuracy of the determination of the intensity of cavitation. In addition, as the movement of the fluid changes, the localization of the cavitation regions changes. This forces the repositioning of the control samples and also reduces the accuracy of the experiment.

Цель изобретени  -г- уменьшение времени и повышение точности определени  интенсивности кавитации. Это достигаетс  тем, что по предлагаемому способу в качестве рабочей жидкости используют эмульсию, один из компонентов которой имеет плотность 0,9-1,1 г/см и в зкость„10-Ю сП,.The purpose of the invention is to reduce the time and improve the accuracy of determining the intensity of cavitation. This is achieved by using the proposed method as an emulsion, one of the components of which has a density of 0.9-1.1 g / cm and a viscosity of 10-U cp, as the working fluid.

а о степени разрушени  образца суд т по содержанию в эмульсии фракции с размером частиц менее 0,5 мкм.and the degree of destruction of the sample is judged by the content in the emulsion of the fraction with a particle size of less than 0.5 µm.

Пример. По результатам измерений выбирают режим работы, сопровождающийс  наиболее интенсивной кавитацией. Дл  определени  интенсивности кавитации путем воздействи  рабочей жидкостью на испытываемый образец и последующего определени  степени его разрущени  в качестве раЬочей жидкости, используют эмульсиюExample. According to the measurement results, the mode of operation is selected, accompanied by the most intense cavitation. To determine the intensity of cavitation by exposing the test sample to the test sample and subsequently determining its degree of destruction, an emulsion is used as the working fluid.

трансформаторного масла с плотностью 0,925 г/см и динамической в зкостью 31,28сП в воде. Проход  через гидравлическое устройство, трансформаторное масло эмульгируетс  в воде, а о степени разрущени  образца суд т по содержанию в эмульсии фракции с размером частиц менее 0,5 м.км, что определ етс  дисперсным анализом полученных проб.transformer oil with a density of 0.925 g / cm and a dynamic viscosity of 31.28 cP in water. The passage through the hydraulic device, the transformer oil is emulsified in water, and the degree of destruction of the sample is judged by the content in the emulsion of the fraction with a particle size less than 0.5 mkm, which is determined by the dispersive analysis of the samples obtained.

Использование изобретени  позвол ет снизить трудоемкость процесса определени  интенсивности кавитации в действующих гидромащинах, в промыщленных и лабораторных устройствах и повысить точность измерени  при любых режимах работы гидроагрегата.The use of the invention makes it possible to reduce the laboriousness of the process of determining the intensity of cavitation in existing hydraulic masses, in industrial and laboratory devices, and to improve the measurement accuracy in any operating conditions of the hydraulic unit.

691595691595

3434

Claims (1)

Формула изобретени в зкость 10-10 сП, а о степени разрушеСпосйб определени  интенсивности ка-«и  образца суд т по содержанию в эмульвитации путем воздействи  рабочей жид- Фракции с размером частиц менееThe invention claims a viscosity of 10-10 cP, and the degree of destruction of the determination of the intensity of the ka- "and the sample is judged by the content in the emulsification by the action of the working fluid fraction with a particle size less than костью на испытываемый образец и после- дующего определени  степени его разруше-Источники информации, ни , отличающийс  тем, что, с целью умень-j прин тые во внимание при экспертизе шени  времени и повышени  точности определени , в качестве рабочей жидкости ис-1. Пылаев Н. И. и Эдель Ю. У. КавитапЬльзуют эмульсию, один из компонентовци  в гидротурбинах. Л., «Машиностроекоторой имеет плотность 0,9-1,1 г/см иние, 1974, с. 150-155.Bone on the test sample and the subsequent determination of the degree of its destruction - Sources of information, nor the fact that, with a view to reducing j taken into account when examining time and improving the accuracy of determination, as a working fluid, is-1. Pylaev N. I. and Edel Yu. U. Cavita emulsion, one of the components in hydro turbines. L., “Machine building has a density of 0.9-1.1 g / cm inie, 1974, p. 150-155.
SU782622245A 1978-05-31 1978-05-31 Method of determination of cavitation intensity SU691595A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782622245A SU691595A1 (en) 1978-05-31 1978-05-31 Method of determination of cavitation intensity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782622245A SU691595A1 (en) 1978-05-31 1978-05-31 Method of determination of cavitation intensity

Publications (1)

Publication Number Publication Date
SU691595A1 true SU691595A1 (en) 1979-10-15

Family

ID=20767439

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782622245A SU691595A1 (en) 1978-05-31 1978-05-31 Method of determination of cavitation intensity

Country Status (1)

Country Link
SU (1) SU691595A1 (en)

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