DD144821A1 - METHOD AND DEVICE FOR REPRODUCING LEAKS - Google Patents

Abstract

The time and effort required to identify leaks becomes lowered. It will be the most optimal for each component The testing method determines without resorting to the component have to. This is the corresponding to the component to be examined Operating pressure with a test gas or by a vacuum in one of Atmosphere enclosed space created at one point of the room an exit of the test gas into the atmosphere or an entry of with test gas enriched air from the atmosphere into the room and from there allows escape into the atmosphere. At the Exit point are the various leak testers for Use brought. - Figure -

Description

Title of invention - ·

Method and device for simulating leaks

Field of application of the invention

The invention relates to a method and a device for the creation of leaks on containers and pipelines.

Characteristic of the known technical solutions

The different leakage rates occurring in practice under pressure or vacuum on vessels and pipelines necessitate the use of various leak testing methods and leak testers, the Pestdicht the total tightness interested in most cases finding a leak in order to eliminate targeted and time-saving.

For Peststellung of leaks in vacuum vessels, it is known to dip these or individual assemblies thereof in a vessel filled with liquid and to fill with compressed air. Bubbles or "rising" bubble chains allow the leak to be determined on the vacuum vessel. This test method is not applicable for large vacuum vessels and assemblies installed in systems «

The tightness test on pressure vessels and containers takes place in the form that they sprayed from the inside or outside with a test gas and on the other side with a leak tester for a possible Lsck back searched v / earth. The use of various test equipment is possible or even necessary to be able to detect a leak at all. ,

In the case of large containers and pipelines with overpressure or vacuum, the test personnel only have the possibility of having their own

Opinion to bring for the respective component cheapest Dichtheitsprüfinethode used, which can lead to the fact that only after multiple use of different testers the error can be determined, whereby a high equipment cost is required and a time delay in the elimination of the leak occurs.

Object of the invention

The aim of the invention is to reduce the time and effort required to detect leaks in containers and pipelines.

Presentation of the 'invention of the invention

The object of the invention is to determine the most optimal leak-tightness test method corresponding to the respective component, without having to resort to the component.

This is inventively achieved in that the corresponding component to be examined operating pressure is generated with a test gas or by a vacuum in a space enclosed by the atmosphere, at one point of the room, an exit of the test gas into the atmosphere or an entry of Te3tgas enriched air from the atmosphere in the room and from there allows escape to the atmosphere and at the exit point a variety of leak testers are used. The device for carrying out the method consists of a pressure vessel which is provided with a test leak in the form of a needle valve or * powder leaks, a Peinmeßmanomster and a safety valve and is connected via an inlet valve alternately to a test gas cylinder or a vacuum pump with a leak detector.

Exemplary embodiment · ·

The invention will be explained in more detail below using an exemplary embodiment. The accompanying drawing shows the device for simulating leaks.

The device consists of a pressure vessel 1 with a test leak in the form of a needle valve or powder leak, a Feinineßmaiioraeter and a safety valve 4. About an inlet valve 5, the pressure vessel 1 is alternately lockable to a test gas cylinder 6 and · a vacuum pump 7.

The procedure in the simulation of leaks is the following To test overpressure leak detection method, the pressure vessel 1 is filled via the inlet valve 5 from the te stgasflasche 6 with a test gas. The internal pressure of the pressure vessel 1 is displayed on the Feinmeßmanometei ⁷ 3 · When a certain operating pressure is exceeded, the safety valve 4 responds. From the study of on-site conditions, the parameters corresponding to the component to be examined are known and can be reproduced in the pressure vessel 1. They can be repeated and set as often as desired. Likewise, the test leak 2 on the through tank 1 according to the. Operating conditions set. In this case, a needle valve with an adjustable leak rate range or a powder leak with a fixed leak rate can be used. The now emerging from the test leak 2 test gas can be identified by using a variety of test methods and test equipment, from which for the particular application, the most suitable leak testing methods and devices determined. are.

For the testing of vacuum methods, the pressure vessel 1 is evacuated via the inlet valve 5 by the vacuum pump 7. The test leak 2 is sprayed with a fine test gas jet. The reaching over the test leak in the pressure vessel 1 enriched with the test gas air is pumped from the vacuum pump 7 and displayed in the leak detector 8, from which it enters the atmosphere »At this point, then the use of the test equipment.

Claims (2)

invention claim 1. A method for simulating leaks in containers and pipelines, characterized in that the operating pressure corresponding to the component to be examined is generated with a test gas or by a vacuum in a space enclosed by the atmosphere, at one point of the space an exit of the .Test gas into the Atiaophäre or a -entry of test gas-enriched air from the atmosphere in the room and from there allows escape to the atmosphere and at the exit point the 'various leak testers are used. 2. Device for carrying out the method according to item 1, characterized in that a pressure vessel (1) with a test leak (2) in the form of a needle valve or powder leakage, a Peinmeßmanometer (3) and a safety valve (4) and provided via an inlet valve (5) alternately connected to a test gas cylinder (6) or a vacuum pump (7) with a leak detector 8 is connected » 1 side drawing