SU700793A1

SU700793A1 - Device for testing fluid-tightness of articles

Info

Publication number: SU700793A1
Application number: SU772480818A
Authority: SU
Inventors: Федор Назарович Прокопов
Original assignee: Предприятие П/Я М-5729
Priority date: 1977-04-28
Filing date: 1977-04-28
Publication date: 1979-11-30

Description

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Изобретение относитс х области маш1шостроени , в частности к средствам испытани изделий на герметичность методом аквариума.The invention relates to the field of machinery, in particular to the means of testing products for tightness by the aquarium method.

Известны устройства, реализующие сносов аквариума дл определени иегерметичности изделий И, представл ющие собой резервуар, заполненный до определенного уровн жидкостью , и систему вакуумированн пространства над жидкостью. Утечка из погруженного в жидкость объекта, заполненого газом с избыточным давлением, фиксируетс визуально и степень интенсивности по влени пузырьков определ етс сравнением с эталонной течью.Devices are known that implement the demolition of an aquarium to determine the i-hermeticity of the products I, which are a tank filled to a certain level with liquid, and a system that evacuates the space above the liquid. The leakage from an object immersed in a liquid filled with an overpressure gas is recorded visually and the degree of intensity of the appearance of bubbles is determined by comparison with a reference leak.

Недостаток зтих устройств заключаетс в невозможности определени величины суммарной утечки газа из издели .A disadvantage of these devices is the impossibility of determining the magnitude of the total gas leakage from the product.

Наиболее близко к изобретению устройство дл контрол герметичности изделий, содержащее корпус с крышкой, заполн емый до определенного уровн жидкостью, сливной и вакуумной трубопроводы, газосборншс, устанавливаемый над изделием в жидкости, и соединенный с газосборником в верхней части мерный колпак пр 1зрачного материала 2.Closest to the invention is a device for monitoring the tightness of products, comprising a housing with a lid, filled up to a certain level with a liquid, drain and vacuum pipelines, a gas reservoir mounted above the product in the liquid, and a measuring cap of the transparent material 2 at the top of the gas container.

Недостатком указанного устройства вл етс относительно невысока точность контрол мйкротечей, обусловленна наличием разветвленной сети трубок с запорными кранами, где возможны утечки, скоплени газа и т.п.The disadvantage of this device is the relatively low accuracy of control of the micro leakage due to the presence of an extensive network of tubes with stop valves, where leaks, gas accumulations, etc. are possible.

Цель изобретени - повьщ1ение точности контрол и автоматизащш процесса контрол .The purpose of the invention is to increase the accuracy of control and automatization of the control process.

Эта цель достигаетс тем, что в устройстве мерный колпак выполнен откидывающимс и помещен в жидкости ниже ее уровн .This goal is achieved by the fact that the measuring cap in the device is flip up and placed in the liquid below its level.

На чертеже приведено предлагаемое устройство , общий вид.The drawing shows the proposed device, a General view.

Claims

It consists of a housing 1 with a lid 2, the image of a sealed container filled to a certain level with liquid 3. In the container case 1, a pipeline 4 is installed to create a vacuum in the vessel, a pipeline 5 for draining the liquid. A support 6 is mounted on the bottom of the tank to secure the product 7. On the inner surface of the housing 1 there are supports 8 for placing the bell-shaped gas collector 9 in the working position. The top of the gazeo-collector is made in the form of a folding measuring cap 10, made 360 Horo from a transparent material and connected with the lever 11 to the pneumatic mechanism 12. The device works as follows. In the case 1, the test article 7 is mounted on the stand 6, a bell-shaped gas collector 9 is installed on the supports 8 with the measuring cap 10 folded back. The container 3 is filled to the predetermined level with liquid 3 and the lid 2 is closed. The volume above the surface is evacuated to a predetermined level. During this period, liquid degassing occurs. After the expiration of the established time, pneumatic mechanism 12 is activated, which sets the measuring cap 10 to the working position. In the process of testing gas puffs flowing from unsealed areas of the product fall under the gas tank and form a total puff, clearly visible through the transparent material of the measuring cap 10. The value of the total bubble formed over a certain time can be judged on the total gas leakage from the product. Using this device dramatically reduces the cost of testing and testing and improves the accuracy of evaluating the performance of products intended for long-term storage. Claims An apparatus for monitoring leaktightness of products, comprising a housing with a lid, filled to a certain level with liquid, drain and vacuum pipelines, a gas collector installed above the product in a liquid, and a measuring cap made of a transparent material in the upper part, characterized in , in order to improve the accuracy of control of the automation of the control process, the measuring cap is made reclining and placed in the liquid below its level. Sources of information taken into account in the examination 1. Authors certificate of the USSR No. 206878, cl. F 17 D 5/02, 1966.

2. USSR author's certificate number 122324, cl. G 01 M 3/06, 1958 (prototype).