SU991211A1

SU991211A1 - Device for testing pipes for fluid-tightness

Info

Publication number: SU991211A1
Application number: SU813331891A
Authority: SU
Inventors: Наиб Шарапович Шайхилисламов; Иван Дмитриевич Любченко; Борис Мошъяхович Пинхасов
Original assignee: Специальное Конструкторское Бюро По Ирригационным Машинам Объединения "Внииземмаш"
Priority date: 1981-08-31
Filing date: 1981-08-31
Publication date: 1983-01-23

Description

Изобретение относитс к контрольНС-измерительной технике и может быть использовано при гидроиспытани х труб на герметичность избыточным давлением среды.The invention relates to a control AN-measuring technique and can be used for hydrotesting pipes for tightness with an excess pressure of a medium.

Известна установка дл испытани труб на герметичность, содержаща ванну, заполн емую испытательной жидкостью , установленные в ванне две заглушки и средства контрол герметичности . Герметизаци трубы происходит при взаимодействии заглушек с клиновым механизмом их установки С 1 .A known device for testing pipes for leak tightness, containing a bath filled with test liquid, two plugs installed in the bath and means for monitoring tightness. Sealing of the pipe occurs when the stubs interact with the wedge mechanism of their installation С 1.

Недостатками указанной установки вл ютс низка производительность испытаний, св заннаГ с использованием автономной насосной установки высокого давлени , включаемой после окончани процесса герметизации трубы , а также сложный механизм установки заглушек, состо щий из брусьев, упоров, роликов-и клиньев.The disadvantages of this installation are low productivity tests associated with the use of an autonomous pumping unit of high pressure, included after the completion of the sealing process of the pipe, as well as a complex mechanism for installing plugs, consisting of bars, stops, rollers and wedges.

Наиболее близким по технической сущности и достигаемому результату к предлагаемому изобретению вл етс устройство дл испытани труб на герметичность, содержащее ванну, заполн емую испытательной жидкостью, установленные в ванне с возможностьюThe closest in technical essence and the achieved result to the proposed invention is a device for testing pipes for tightness, containing a bath filled with test liquid, installed in the bath with the possibility

. перемещени вдоль нее две заглушки, привод дл их перемещени и средства контрол герметичности. Заглушки. moving along it two plugs, a drive for moving them, and means of monitoring tightness. Stubs

с в этом устройстве выполнены в виде плоских дисков с уплотнительными элементами, герметизирующими трубу по ее торцам Г 21.c in this device are made in the form of flat discs with sealing elements sealing the pipe along its ends 21.

Недостатком этого устройства так«п же вл етс низка производительность испытаний, св занна с наличием автономной насосной установки, включаемой после завершени процесса герметизации трубы.A disadvantage of this device is also the low test performance due to the presence of an autonomous pumping unit that is activated after the completion of the pipe sealing process.

15 Целью изобретени вл етс увеличение производительности испытаний.15 An object of the invention is to increase test performance.

Эта цель достигаетс тем, что устройство дл испытани труб на герметичность , содержащее ванну, запол20This goal is achieved by the fact that the device for testing pipes for tightness, containing a bath, 20

н емую испытательной жидкостью, ус тановленные в ванне с возможностью перемещени вдоль нее две заглушки, привод дл их перемещени и средства . контрол герметичности, снабженоplaced in the bath with the possibility of moving two plugs along it, an actuator for moving them and means. tightness control fitted with

Claims

25 gas pressure compensators installed on the plugs and there are guides for plugs on the rats of the bath, and each of the plugs is designed as a cup, the cavity of which is connected to the pressure compensator, and the sealing element located at its outer edge of the cup. FIG. 1 shows a device for testing pipes for tightness, a general view; in fig. 2 is a section A-A in FIG. 1. A device for testing the tightness of a pipe contains a bath 1 filled with test liquid 2, two plugs made in the form of a glass 3 and located along the inner perimeters of the glasses 3 at their outer edges 4 of the sealing elements 5, drive 6 for moving the glasses. 3, tightness monitoring means 7, gas compensators 8 pressure connected to cavities 9 of glasses 3, guides 10 located on the walls of bath 1, support members 11 located on two baths 1, pressure device 12, valve 13 for air bleeding and a corrugated case 14 which protects the actuator 6 for moving the glasses 3 against the effects of the test liquid 2. The device operates as follows. In the bath 1 filled with the test liquid 2, the tube 15 is placed on the supporting elements 11 with the help of a lifting mechanism and fixed by the clamping device 12. With the aid of the rider, the glasses 3 move along the guide 10, put on the tube 15 and continue its movement through it, thereby creating pressure in the internal cavity of the pipe 15. Sealing the internal cavity of the pipe 15 is provided with sealing elements 5. Since the liquid 2 is almost incompressible, the movement of the glasses 3 through the pipe 15 is ensured baked by compressing gas in pressure compensators 8. After the specified test pressure has been reached, the cylinder drive 3 is turned off. About leakage, pipes 15 are judged by the pressure drop detected by means of tightness control means 7, for example, a pressure gauge. The effectiveness of the proposed device is to increase the test performance by combining sealing processes and creating an excess pressure of the medium by compressing the test fluid as the plugs move along the pipe. Claims The device for testing the tightness of pipes, containing a bath filled with test liquid, installed in the bath to move along it two plugs, a drive for moving them and means of checking the tightness, characterized in that it is equipped with gas pressure compensators mounted on the plugs and guides located on the bath walls for the plugs, and each of the plugs is made in the form of a glass, the cavity of which is communicated and with a pressure compensator, and located along the inner perimeter of the cup at its outer edge of the sealing element. Sources of information taken into account in the examination 1. USSR author's certificate number 746230, cl. G 01 M 3/28, 1976.

2. Garbuzov Z.E. and others. Machines for the construction of pressure pipelines from asbestos-cement and plastic pipes. Survey information TSNIITEstroymash, ser. 5, issue. 4. M., 1970, p. 40-42 (prototype).