SU1411643A1 - Method of determining capillary pressure in channel of through microcapillary in hermetically sealed reservoir wall - Google Patents
Method of determining capillary pressure in channel of through microcapillary in hermetically sealed reservoir wall Download PDFInfo
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- SU1411643A1 SU1411643A1 SU864050445A SU4050445A SU1411643A1 SU 1411643 A1 SU1411643 A1 SU 1411643A1 SU 864050445 A SU864050445 A SU 864050445A SU 4050445 A SU4050445 A SU 4050445A SU 1411643 A1 SU1411643 A1 SU 1411643A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- pressure
- capillary
- channel
- fluid flow
- microcapillary
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Abstract
Изобретение относитс к технической физике и- может быть использовано дл определени величины капилл рных сил, например при оценке герметичности емкости, и позвол ет повысить точность определени величины капилл рного давлени в канале микрокапилл ра в стенке герметичной емкости , заполненной легколетучей жидкостью, сообщенной капилл ром с атмосферой, и упростить процесс. Давление в емкости повышают до величины давлени , при котором наступает пульсирующий характер расхода жидкости, а о величине капилл рного давлени суд т по величине давлени на канале капилл ра, при котором наступает пульсирующий расход жидкости. 1 ил.The invention relates to technical physics and can be used to determine the magnitude of capillary forces, for example, when assessing the leaktightness of a container, and improves the accuracy of determining the magnitude of capillary pressure in the microcapillary channel in the wall of an airtight container filled with volatile liquid imparted by a capillary atmosphere, and simplify the process. The pressure in the tank is increased to the pressure at which the pulsating nature of the fluid flow occurs, and the magnitude of the capillary pressure is judged by the pressure on the capillary channel at which the pulsating fluid flow occurs. 1 il.
Description
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Изобретение относитс к технической физике и может быть использовано дл определени величины капилл рных сил, например , -при оценке герметичности емкости.The invention relates to technical physics and can be used to determine the magnitude of capillary forces, for example, in assessing the tightness of a container.
Цель изобретени - упрощение способа и повышение точности.The purpose of the invention is to simplify the method and improve accuracy.
На, чертеже представлена зависимость расхода жидкости от давлени на канале микрокапилл ра.The drawing shows the dependence of the fluid flow on the pressure on the microcapillary channel.
Способ осуществл ют следующим обра зом.The method is carried out as follows.
В рабочую жидкость добавл ют труднолетучие составл ющие, подают жидкость в емкость и повышают давление в емкости, затем снимают кривую скорости испарени жидкости в зависимости от времени, фикси- руют момент наступлени пульсирующего характера испарени жидкости. Давление, соответствующее этому моменту, равно капилл рному.Non-volatile components are added to the working fluid, the fluid is supplied to the reservoir and the pressure in the reservoir is increased, then the curve of the evaporation rate of the fluid is plotted versus time, the instant of pulsating nature of the evaporation of the fluid is recorded. The pressure corresponding to this moment is equal to capillary.
Пример. На образец из стали IxlSHlOT длиной канала 13 мм с негерметичностью по гелию 7,7 10 мм рт. ст/с подают азотную кислоту с содержанием азотнокислых солей МО %, повышают давление в емкости иExample. For a sample of steel IxlSHlOT with a channel length of 13 mm with leakage of helium 7.7 10 mm Hg. st / s serves nitric acid with the content of nitrate salts MO%, increase the pressure in the tank and
снимают кривые расхода жидкости с периодичностью 15 с.remove the curves of the fluid flow with a periodicity of 15 s.
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Пульсирующий расход жидкости наступает при давлении 1,7 кгс/см. Капилл рное давление, определенное на образце перед постановкой на испытани методом вытеснени пузырька газа в спиртовую ванну, составл ет 1,57 кгс/см.Pulsating fluid flow occurs at a pressure of 1.7 kgf / cm. The capillary pressure determined on the sample before being tested by the method of displacing a gas bubble into an alcohol bath is 1.57 kgf / cm.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864050445A SU1411643A1 (en) | 1986-01-02 | 1986-01-02 | Method of determining capillary pressure in channel of through microcapillary in hermetically sealed reservoir wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864050445A SU1411643A1 (en) | 1986-01-02 | 1986-01-02 | Method of determining capillary pressure in channel of through microcapillary in hermetically sealed reservoir wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1411643A1 true SU1411643A1 (en) | 1988-07-23 |
Family
ID=21231381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864050445A SU1411643A1 (en) | 1986-01-02 | 1986-01-02 | Method of determining capillary pressure in channel of through microcapillary in hermetically sealed reservoir wall |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1411643A1 (en) |
-
1986
- 1986-01-02 SU SU864050445A patent/SU1411643A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Яворский Б. М. и др. Справочник по физике. М., 1965, с. 325. * |
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