SU852533A1 - Tool for caulking the cracks of vessels and hollow structures under pressure in inflammable gas media - Google Patents
Tool for caulking the cracks of vessels and hollow structures under pressure in inflammable gas media Download PDFInfo
- Publication number
- SU852533A1 SU852533A1 SU802904129A SU2904129A SU852533A1 SU 852533 A1 SU852533 A1 SU 852533A1 SU 802904129 A SU802904129 A SU 802904129A SU 2904129 A SU2904129 A SU 2904129A SU 852533 A1 SU852533 A1 SU 852533A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tool
- cracks
- caulking
- vessels
- under pressure
- Prior art date
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- Pressure Welding/Diffusion-Bonding (AREA)
Description
насадка 5 служит дл увеличени перепада давлени инертного газа при выходе в атмосферу , что необходимо дл охлаждени рабочей части 2 инструмента за счет дроссель-зффекта .The nozzle 5 serves to increase the pressure drop of the inert gas when released to the atmosphere, which is necessary to cool the working part 2 of the tool due to the throttle effect.
Рабоча часть 2 может быть круглого или пр моугольного сечени , канал 4 снабжен краном 6.The working part 2 can be round or rectangular, the channel 4 is equipped with a crane 6.
Работа инструментом осуществл етс следующим образом.The operation of the tool is as follows.
Открывают кран 6 и инертный газ (азот, углекислота) поступает в канал 4 через насадку 5 в рабочую зону взаимодействи инструмента с обрабатываемым металлом. Производ т зачеканивание трещин (щели), из которой в это врем выходит горючий газ (например, метан СН4) под высоким давлением (50-75 кг/см), который может образовать с воздухом взрывчатую газовую смесь. При этом во врем чеканки возможность возгорани или взрыва газовой смеси исключена вследствие того, что инертный газ замещает воздух (кислород) в рабочей зоне и охлаждает рабочую зону за счет резкого расщирени при выходе из капилл рной насадки 5 (дроссель-эффект ) .The valve 6 is opened and the inert gas (nitrogen, carbon dioxide) enters the channel 4 through the nozzle 5 into the working zone of interaction of the tool with the metal being processed. Cracking (cracks) is made, at which time combustible gas (for example, methane CH4) escapes under high pressure (50-75 kg / cm), which can form an explosive gas mixture with air. At the same time, during the embossing, the possibility of a fire or explosion of the gas mixture is excluded due to the fact that the inert gas replaces the air (oxygen) in the working area and cools the working area due to sharp expansion at the exit from the capillary nozzle 5 (throttle effect).
Применение инструмента в таком исполнении обеспечивает полную безопасность при работе им в среде горючих и взрывчатых газовых смесей.The use of tools in this design ensures complete safety when operating them in an environment of combustible and explosive gas mixtures.
Описанный инструмент позвол ет ликвидировать трещины на сварных щвах и стенках труб и емкостей во врем выхода из этих трещин горючих газов под высоким давлением, которые ликвидировать известными безогневыми средствами невозможно, а применение сварки требует больших затрат , св занных с опорожнением газопроводов , емкостей, сокращением подачи газа потребител м и создает много других трудностей .The described tool makes it possible to eliminate cracks in the welded grooves and walls of pipes and tanks during the exit of high-pressure combustible gases from these cracks, which cannot be eliminated by means of known non-fire means, and the use of welding requires large costs associated with emptying gas pipelines. gas consumer and creates many other difficulties.
Поскольку лишь на магистральных газопроводах Мингазпрома ежегодно необходимо ликвидировать около 200 таких трещин, а ликвидаци их на одном межкрановом участке дает экономический эффект от 2 до 100 тыс. руб., в зависимости от р да факторов, то применение предложенного инструмента обеспечит значительный экономический эффект в народном хоз йстве.Since only on the gas pipelines of the Ministry of Gas Industry annually about 200 such cracks need to be eliminated, and eliminating them in one crane section gives an economic effect from 2 to 100 thousand rubles, depending on a number of factors, the application of the proposed tool will provide a significant economic effect in the national sector. host
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802904129A SU852533A1 (en) | 1980-04-02 | 1980-04-02 | Tool for caulking the cracks of vessels and hollow structures under pressure in inflammable gas media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802904129A SU852533A1 (en) | 1980-04-02 | 1980-04-02 | Tool for caulking the cracks of vessels and hollow structures under pressure in inflammable gas media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU852533A1 true SU852533A1 (en) | 1981-08-07 |
Family
ID=20887150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802904129A SU852533A1 (en) | 1980-04-02 | 1980-04-02 | Tool for caulking the cracks of vessels and hollow structures under pressure in inflammable gas media |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU852533A1 (en) |
-
1980
- 1980-04-02 SU SU802904129A patent/SU852533A1/en active
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