SU1668886A1 - Apparatus to test hollow products for leak-proofness - Google Patents

Abstract

The device relates to a test apparatus, in particular to devices for testing hollow articles for leak tightness by the pneumohydraulic method. The aim of the invention is to increase reliability by improving the conditions for observing the product under test. The device contains transparent side walls 2, side faces 3 and bottom 4 forming capacitance 1. Side walls 2 with one part 5 (for example, left) protrude beyond the internal volume of container 1 and, together with the side faces 3, form external corner channels where light sources (light bulbs 6). The bottom 4 is set upwardly away from the lower edges of the side walls 2, and under the bottom 4 there are two bottom walls 7, which are separated from each other by their inner edges and form, together with the lower parts of the side walls 2, side faces 3 and 4, two compartments where there are additional light bulbs 6, power supplies 8 and electrical fittings. Windows are made in the lower parts of the side walls 2, and slots 12 are made in the lower parts of the side faces 3. The side faces 3, the bottom 4 and the side walls 2 protruding beyond the internal volume 1 of the side walls 2 are made opaque. All light sources are grouped with the ability to include both individual groups and all groups together. 2 hp ff, 1 ill.

Description

The invention relates to test equipment, in particular, to devices for Testing hollow products for leaks by the Pneumohydraulic method, and can be used in various branches of engineering, as well as in aviation, sea and road transport.

The aim of the invention is to increase reliability by improving the conditions for observing the test product.

The drawing schematically shows a device, axonometric projection with partial cutouts of the walls.

A device for testing hollow products for leaks contains a container 1 with a liquid in the form of a rectangular prism, which is based on an octagon. The side walls 2, adjacent side faces 3 and the bottom 4 are made translucent. The side walls 2 have parts 5 that protrude beyond the internal volume of the container 1 (for example, to the left), which together with the side faces 3 form the outer corner channels, where four groups of light sources (bulbs 6) are mounted, mounted on the protruding parts 5. If necessary, the outer corners channels can be closed with special covers (not shown). The side walls 2 are made transparent, and the side faces 3, the bottom 4 and protruding beyond the internal volume of the container 1 of the part 5 of the side walls 2 are made opaque. Another part of the side walls 2 protrude beyond the bottom 4 of the tank 1, i.e. the bottom 4 is installed with an offset upward from the lower edges of the side walls 2 and the side faces 3, and under the bottom 4 there are two bottom walls 7, mounted on the protruding parts of the side walls 2 and located at the same level under the bottom 4 parallel to it with a gap 10 between inner L edges. The bottom walls 7 together with the lower parts of the side walls 2 and side faces 3 and the bottom 4 form two compartments where two additional groups of light sources are located (bulbs 6, autonomous power supplies 8, as well as switches, fasteners and other electrical fittings). All bulbs 6 are connected by electric wires 9 to power sources 8 and are combined into groups, with the possibility of switching on both individual groups and all groups together. For ease of installation and maintenance of electrical equipment, the bottom walls 7 are mounted with a gap 10 between their inner edges, windows 11 are made in the lower parts of the side walls 2, and slots 12 are made in the lower parts of the side faces 3. The container 1 can be closed with a lid if necessary (not shown ), and inside the container 1 can be located various devices for mounting the test product (not shown).

The entire design of the device can be made of armored glass.

The device operates as follows.

The cavity of the test product, such as a vessel, is connected to a compressed gas supply system (not shown) and the product is immersed in a container 1 filled with liquid. Then, excess gas pressure is created in the cavity of the test product, and by varying the lighting, continuous visual observation of the test product is carried out. The tightness assessment is carried out by the presence or absence of gas bubbles on the tested surfaces (places) of the tested product. During the test, the product is monitored (this is regulated by the test program and methodology) directly through the transparent design of the device or through the portholes of the armored cameras of the test bench where the device is installed, or through the window of any other protective device.

Claims (2)

Claim 1. A device for testing hollow products for leaks, containing a container with a liquid in the form of a rectangular prism with transparent side walls and light sources located outside the tank, characterized in that, in order to increase reliability, the base of the prism has the shape of an octagon, four side the walls are made protruding in one part beyond adjacent side faces, forming outer corner channels in which four groups of light sources are mounted, mounted on the protruding parts of the wall, and the other part behind bones, which is made transparent, the container is made with two bottom walls mounted on the protruding parts of the side walls behind the bottom and located at the same level below the bottom parallel to it with a gap between the inner edges, and the other two troupes of light sources are placed between the bottom and bottom walls and fixed on the latter. · 2. The device according to claim 1, with the proviso that, for the convenience of installation, it is equipped with an autonomous power source, portions of the side walls protruding from the bottom are made with windows for power sources, and protruding beyond adjacent side faces of the part - with slots, power sources are located on the bottom walls and are connected by wires passing through Z. Ustrovstopopp.1 and 2, distinguishing windows and slots with groups of sources with the fact that the side faces and their protruding light. parts are made matte. Compiled by I. Luchev - Editor O. Golovach Tehred M. Morgenthal Corrector V. Girnyak Order 2650 Circulation Subscription VNIIIPI State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR> 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.