SU1222906A1 - Method of recording density of liquid flow vapours - Google Patents
Method of recording density of liquid flow vapours Download PDFInfo
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- SU1222906A1 SU1222906A1 SU843821103A SU3821103A SU1222906A1 SU 1222906 A1 SU1222906 A1 SU 1222906A1 SU 843821103 A SU843821103 A SU 843821103A SU 3821103 A SU3821103 A SU 3821103A SU 1222906 A1 SU1222906 A1 SU 1222906A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- vapours
- liquid flow
- recording density
- pump
- flow
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- Application Of Or Painting With Fluid Materials (AREA)
Description
Изобретение относитс к вакуумной технике , а именно к способам регистрации плотности обратного потока паров рабочих жидкостей диффузионных вакуумных насосов .The invention relates to vacuum technology, and in particular to methods for detecting the reverse flow density of working fluids of diffusion vacuum pumps.
Цель изобретени - повышение экономичности путем исключени использовани светочувствительных пластинок с покрытием , содержащих серебро.The purpose of the invention is to increase the economy by eliminating the use of coated photosensitive plates containing silver.
На чертеже представлена схема вакуумного стенда, реализующего предлагае мый способ регистрации плотности потока паров жидкости из диффузионного насоса.The drawing shows a diagram of a vacuum test bench that implements the proposed method for recording the density of the flow of liquid vapor from a diffusion pump.
Стенд содержит диффузионный насос 1, соединенный с форвакуумным насосом 2, и вакуумную камеру 3, причем на входе диффузионного насоса 1 установлена пластина 4 с термочувствительной поверхностью, обращенной в сторону насоса 1.The stand contains a diffusion pump 1 connected to a foreline pump 2 and a vacuum chamber 3, with a plate 4 installed at the inlet of the diffusion pump 1 with a heat-sensitive surface facing the pump 1.
Способ осуществл етс следующим образом .The method is carried out as follows.
Пластина 4 с термочувствительной по- верхностью выдерживаетс в течение некоторого времени под воздействием обратPlate 4 with a thermosensitive surface is kept for some time under the influence of reverse
кого потока паров рабочей жидкости диффузионного насоса 1, включенного в течение всего периода экспозиции.The vapor flow of the working fluid of the diffusion pump 1, turned on during the entire period of exposure.
Пары жидкости осаждаютс на термочувствительную поверхность, причем толщина пленки на поверхности в любой ее точке пропорциональна величине потока паров в этой точке и времени экспозиции. После остывани (останова) насоса пластина 4 извлекаетс и выдерживаетс над источником тепла в течение нескольких секунд. В результате воздействи тепла на термочувствительную поверхность получаетс картина распределени плотности потока паров по сечению входного патрубка насоса 1, так как в местах наибольшего скоплени сконденсированных паров толщина сло больше и соответственно воздействие тепла на термочувствительную поверхность меньще.Liquid vapors are deposited on a thermosensitive surface, with the thickness of the film on the surface at any point proportional to the amount of vapor flow at that point and the exposure time. After the pump has cooled down (stopping), plate 4 is removed and held above the heat source for a few seconds. As a result of the effect of heat on the thermosensitive surface, a picture of the distribution of the vapor flux density over the cross section of the inlet pipe of the pump 1 is obtained, since in the places of the greatest accumulation of condensed vapors the layer thickness is greater and, accordingly, the effect of heat on the thermosensitive surface is smaller.
Таким образом, применение предлагаемого способа исключает необходимость использовани дорогосто щих серебросодержа- щих покрытий, что ведет к повышению экономичности.Thus, the application of the proposed method eliminates the need to use expensive silver-containing coatings, which leads to increased efficiency.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843821103A SU1222906A1 (en) | 1984-10-11 | 1984-10-11 | Method of recording density of liquid flow vapours |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843821103A SU1222906A1 (en) | 1984-10-11 | 1984-10-11 | Method of recording density of liquid flow vapours |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1222906A1 true SU1222906A1 (en) | 1986-04-07 |
Family
ID=21150008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843821103A SU1222906A1 (en) | 1984-10-11 | 1984-10-11 | Method of recording density of liquid flow vapours |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1222906A1 (en) |
-
1984
- 1984-10-11 SU SU843821103A patent/SU1222906A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 1086237, кл. F 04 F 9/04, 1983. * |
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