SU1619085A1 - Method of checking air-tightness of articles - Google Patents

Method of checking air-tightness of articles Download PDF

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Publication number
SU1619085A1
SU1619085A1 SU884373300A SU4373300A SU1619085A1 SU 1619085 A1 SU1619085 A1 SU 1619085A1 SU 884373300 A SU884373300 A SU 884373300A SU 4373300 A SU4373300 A SU 4373300A SU 1619085 A1 SU1619085 A1 SU 1619085A1
Authority
SU
USSR - Soviet Union
Prior art keywords
tank
leakage
product
vacuum chamber
gas
Prior art date
Application number
SU884373300A
Other languages
Russian (ru)
Inventor
Юрий Федорович Солодовников
Лев Дмитриевич Фроликов
Валерий Иванович Дорофеев
Original Assignee
Предприятие П/Я М-5068
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.)
Filing date
Publication date
Application filed by Предприятие П/Я М-5068 filed Critical Предприятие П/Я М-5068
Priority to SU884373300A priority Critical patent/SU1619085A1/en
Application granted granted Critical
Publication of SU1619085A1 publication Critical patent/SU1619085A1/en

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Abstract

Изобретение может быть использовано дл  контрол  герметичности замкнутых изделий . Цель изобретени  - повышение точности путем учета негерметичности испытательной оснастки. Изделие помещают в замкнутую емкость, заполн ют ее контрольным газом и создают перепад давлений на стенкгх издели . После выдержки в течение заданного времени одновременно с определением скорости изменени  давлени  контрольного газа в емкости определ ют величину утечки контрольного газа из емкости в вакуумную камеру, а негерметичность издели  рассчитывают как сумму измеренных потоков газа из издели  в емкость и из емкости в вакуумную камеру. 1 ил.The invention can be used to control the tightness of closed products. The purpose of the invention is to improve accuracy by taking into account the leakage of test equipment. The product is placed in a closed container, filled with its control gas and creates a pressure differential on the wall of the product. After holding for a predetermined time simultaneously with determining the rate of change of pressure of the control gas in the tank, the amount of leakage of the test gas from the tank into the vacuum chamber is determined, and the product leakage is calculated as the sum of the measured gas flows from the product into the tank and from the tank into the vacuum chamber. 1 il.

Description

H3o6peTet ие относитс  к испытательной технике и может быть использовано дл  контрол  герметичности замкнутых изделийH3o6peTet does not belong to the test technique and can be used to monitor the tightness of closed products.

Цель изобретени  - повышение точности путем учета негерметичности испытательной оснасткиThe purpose of the invention is to improve the accuracy by taking into account the leakage test equipment

На чертеже схематично изображено устройство дл  реализации способа контрол  герметичности.The drawing schematically shows a device for implementing a method for monitoring tightness.

Устройство содержит вакуумную камеру 1 с мановакууметром 2, вакуумный насос 3 и течеискатель 4, соединенные с камерой 1 через вентили 5 и 6, и замкнутую емкость 7 с датчиком 8 давлени  дл  размещени  контролируемого издели  9. Датчик 8 давлени  соединен с выходным прибором 10.The device comprises a vacuum chamber 1 with a pressure sensor 2, a vacuum pump 3 and a leak detector 4 connected to chamber 1 through valves 5 and 6, and a closed container 7 with a pressure sensor 8 for accommodating the test article 9. The pressure sensor 8 is connected to an output device 10.

Способ осуществл етс  следующим образом .The method is carried out as follows.

Заполненное газом изделие 9 помещают в замкнутую емкость 7, вакуумируют ее и заполн ют контрольным газом под давлением , создава  на стенках издели  9 допустимый дл  него перепад давлени , например равный максимальному перепад/ давлени The gas-filled product 9 is placed in a closed container 7, it is evacuated and filled with a test gas under pressure, creating a pressure differential for the product 9, for example, equal to the maximum pressure differential.

при его эксплуатации Емкость 7 с изделием 9 помещают в вакуумную камеру 1 и вакуумируют ее. Измер ют давление в емкости 7 датчиком 8 давлени . После выдержки в течение заданного времени одновременно измер ют течеискателем 4 величину потока контрольного газа из емкости 7 в вакуумную камеру 1, а датчиком 8 давлени  измер ют давление в емкости 7. Суммарную негерметичность издели  9 определ ют как сумму потоков из издели  9 в емкость 7 и из емкости 7 в вакуумную камеру 1.during its operation, the container 7 with the product 9 is placed in a vacuum chamber 1 and vacuum it. The pressure in the tank 7 is measured by the pressure sensor 8. After holding for a predetermined time, the flow of the test gas from the tank 7 to the vacuum chamber 1 is measured simultaneously by the leak detector 4, and the pressure in the tank 7 is measured by the pressure sensor 8. The total leakage of the product 9 is determined as the sum of the flows from the product 9 to the tank 7 and from tank 7 to vacuum chamber 1.

Изобретение позвол ет повысить точность контрол  суммарной негерметично- сти изделий.The invention makes it possible to increase the accuracy of controlling the total leakage of products.

Claims (1)

Формула изобретени Invention Formula Способ контрол  герметичности изделий , заключающийс  в том, что издели  помещают в замкнутую емкость, на стенках издели  создают перепад давлений контрольного газа, измер ют давление контрольного газа в емкости и по скорости его изменени  определ ют величину утечки, отСПThe method of monitoring the tightness of products, which consists in placing the products in a closed container, creates a pressure drop of the test gas on the product walls, measures the pressure of the test gas in the vessel, and determines the leakage rate from the velocity of its change. СWITH оabout ЮYU оabout 0000 елate личающийс  тем, что, с целью повышени  томности путем учета негерметичности испытательной оснастки, емкость предварительно помещают в вакуумную камеру и одновременно с измерением давлени  контрольногоIn order to increase the languor by taking into account the leakage of the test equipment, the container is preliminarily placed in a vacuum chamber and simultaneously with the measurement of the pressure of the test газа в емкости определ ют величину утечки контрольного газа из емкости в вакуумную камеру, а негерметичность издели  определ ют как сумму утечек из издели  в емкость и из емкости в вакуумную камеру.the gas in the tank determines the amount of leakage of the control gas from the tank into the vacuum chamber, and the leakage of the product is determined as the sum of the leakage from the product into the tank and from the tank into the vacuum chamber. ..
SU884373300A 1988-02-04 1988-02-04 Method of checking air-tightness of articles SU1619085A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884373300A SU1619085A1 (en) 1988-02-04 1988-02-04 Method of checking air-tightness of articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884373300A SU1619085A1 (en) 1988-02-04 1988-02-04 Method of checking air-tightness of articles

Publications (1)

Publication Number Publication Date
SU1619085A1 true SU1619085A1 (en) 1991-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU884373300A SU1619085A1 (en) 1988-02-04 1988-02-04 Method of checking air-tightness of articles

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SU (1) SU1619085A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363694A (en) * 1993-11-17 1994-11-15 United Technologies Corporation Ampoule rupture detection system
US5375456A (en) * 1993-11-18 1994-12-27 Trw Vehicle Safety Systems Inc. Leak testing apparatus and method
RU2599409C1 (en) * 2015-06-15 2016-10-10 Акционерное Общество "Научно-Исследовательский Институт "Гермес" Method of controlling tightness of article housing elements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 237431,кл. G 01 N 7/10, 1969. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363694A (en) * 1993-11-17 1994-11-15 United Technologies Corporation Ampoule rupture detection system
US5375456A (en) * 1993-11-18 1994-12-27 Trw Vehicle Safety Systems Inc. Leak testing apparatus and method
RU2599409C1 (en) * 2015-06-15 2016-10-10 Акционерное Общество "Научно-Исследовательский Институт "Гермес" Method of controlling tightness of article housing elements

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