SU877379A1 - Device for checking article air-tightness - Google Patents
Device for checking article air-tightness Download PDFInfo
- Publication number
- SU877379A1 SU877379A1 SU802870753A SU2870753A SU877379A1 SU 877379 A1 SU877379 A1 SU 877379A1 SU 802870753 A SU802870753 A SU 802870753A SU 2870753 A SU2870753 A SU 2870753A SU 877379 A1 SU877379 A1 SU 877379A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tightness
- leak detector
- control
- chamber
- vacuum
- Prior art date
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- Examining Or Testing Airtightness (AREA)
Description
1one
Изобретение относитс к испытательной технике, в частности к контролю герметичности.изделий,The invention relates to a test apparatus, in particular to the control of leak-tightness.
Известно устройство дл контрол герметичности изделий, содержащее контрольную камеру дл размещени в ней издели с пробным газом., рткачную систему и масс-спектрометри- . ческкй течеискатель 1 .A device for monitoring the tightness of products is known, which contains a control chamber for placing a product with a test gas in it, an RT system, and mass spectrometry. Czech leak detector 1.
Недостаток известного устройства - недостаточна чувствительность контрол из-за потери пробного газа .A disadvantage of the known device is that the sensitivity of the control is insufficient due to the loss of the test gas.
Наиболее близким к предлагаемому вл етс устройство дл контрол герметичности, содержащее контрольную камеру дл размещени в ней контролируемого издели , с пробным газом, откачную систему, масс-спектрометрический течеискатель и дополнительную камеру, соединенную с контг рольной соединительным каналом с клапаном 21,Closest to the present invention is a device for monitoring tightness, containing a control chamber for accommodating a test article in it, with test gas, an evacuation system, a mass spectrometric leak detector and an additional chamber connected to a control connecting channel with a valve 21,
Недостаток известного устройства - недостаточна точность контрол , так как после перекрыти клапана пробный газ не поступает в дополнительную камеру.A disadvantage of the known device is insufficient control accuracy, since after shutting off the valve, the test gas does not flow into the additional chamber.
Цель изобретени - повышение точности контрол .The purpose of the invention is to improve the accuracy of control.
Указанна цель достигаетс тем, что соединительный канал выполнен в виде жиклера, пропускна способ10 ность которого численно равна производительности насоса течеискател .This goal is achieved by the fact that the connecting channel is made in the form of a jet, the flow capacity of which is numerically equal to the flow rate of the leak detector pump.
На чертеже представлена схема устройства .The drawing shows a diagram of the device.
1515
Устройство содержит контрольную камеру 1, размещенное в ней изделие 2 с пробным газом, откачную систему, выполненную в виде вакуумных насосов 3 и 4, дополнительную камеру 5, The device contains a control chamber 1, an article 2 placed therein with a test gas, an evacuation system made in the form of vacuum pumps 3 and 4, an additional chamber 5,
20 соединенную с камерой 1 жиклером 6, пропускна способность которого численно равна производительности насоса течеискател 7, и вентили 8 и 9.20 connected to the chamber 1 by the nozzle 6, the capacity of which is numerically equal to the performance of the pump leak detector 7, and valves 8 and 9.
Устройство работает следующим образом .The device works as follows.
Изделие 2, заполненное гелием помещают,в котрольную камеру 1. В исходном положении вентили 8 и 9 закрыты . Открыв вентиль 8, вакуумируют камеру 1 с помощью вакуумного насоса 3, затем откачивают дополнительную камеру с вакуумным насосом А Если контрольна камера I низковакуум ма , to в дополнительной камере 5. создают вакуум на два-три пор дка выше, чем в камере 1. Затем перекрывают вентиль 9, и с помощью течеискател 7 контролируют герметичность издели 2.The product 2 filled with helium is placed in the control chamber 1. In the initial position, the valves 8 and 9 are closed. Opening the valve 8, vacuum chamber 1 with a vacuum pump 3, then pump out an additional chamber with a vacuum pump A If the control chamber I is low vacuum, then in the additional chamber 5. create a vacuum two to three times higher than in chamber 1. Then shut off valve 9, and using leak detector 7, check the tightness of product 2.
Предлагаемое устройство повьшает точность контрол , особенно, при использовании низковакуумных контрольных камер.The proposed device improves the accuracy of control, especially when using low-vacuum control chambers.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802870753A SU877379A1 (en) | 1980-01-11 | 1980-01-11 | Device for checking article air-tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802870753A SU877379A1 (en) | 1980-01-11 | 1980-01-11 | Device for checking article air-tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU877379A1 true SU877379A1 (en) | 1981-10-30 |
Family
ID=20872712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802870753A SU877379A1 (en) | 1980-01-11 | 1980-01-11 | Device for checking article air-tightness |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU877379A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375456A (en) * | 1993-11-18 | 1994-12-27 | Trw Vehicle Safety Systems Inc. | Leak testing apparatus and method |
-
1980
- 1980-01-11 SU SU802870753A patent/SU877379A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375456A (en) * | 1993-11-18 | 1994-12-27 | Trw Vehicle Safety Systems Inc. | Leak testing apparatus and method |
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