SU969496A1 - Method for connecting pipes to tube plates - Google Patents
Method for connecting pipes to tube plates Download PDFInfo
- Publication number
- SU969496A1 SU969496A1 SU802966168A SU2966168A SU969496A1 SU 969496 A1 SU969496 A1 SU 969496A1 SU 802966168 A SU802966168 A SU 802966168A SU 2966168 A SU2966168 A SU 2966168A SU 969496 A1 SU969496 A1 SU 969496A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- connecting pipes
- pipe
- tube plates
- tightness
- strength
- Prior art date
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
1one
Изобретение относитс к механосборочному производству, в частности к способам соединени труб с трубными решетками ,теплообменнь1Х аппаратов.The invention relates to machine-assembly production, in particular to methods for connecting pipes to tube sheets, heat exchangers.
Известен способ соединени труб с трубными решетками, заключающийс в радиальном деформировании труб путем приложени к ним статического давлени рабочей среды до образовани по всей длине контакта трубы с трубноЛ решеткой l There is a known method of connecting pipes with tube grids, which consists in radial deformation of the pipes by applying to them the static pressure of the working medium until the pipe contacts the pipe grid with a grid l
Герметичность и прочность соединений, полученных известным способом, возрас тает с увеличением радиальной деформации Tpygbi, но до определенного предела, после чего эти характеристики качества соединени снижаютс вследствие снижени величины нат га. Кроме того, герметичность и прочность таких соединений снижаютс в процессе эксплуатации теплообменного аппарата з-аа релаксации напр жений на контактирующей поверхности трубы и решетки.The tightness and strength of compounds obtained in a known manner increases with an increase in the radial deformation of Tpygbi, but to a certain limit, after which these characteristics of the quality of the joint decrease due to a decrease in the tension value. In addition, the tightness and strength of such compounds are reduced during the operation of the heat exchanger for the relaxation of stresses on the contacting surface of the pipe and grid.
Цель изобретени - повышение прочнности , надежности и герметичности соединений труб с трубными решетками.The purpose of the invention is to increase the strength, reliability and tightness of pipe joints with tube grids.
Поставленна цель достигаетс тем, что согласно способу соединени труб с трубными решетками, заключающемус в радиальном деформировании трубы путем приложени к ней давлени изнутри рабочей среды, давление приклбщывают пульсирующее с частотой 2-3 Гц.This goal is achieved by the fact that according to the method of connecting pipes with tube grids, which involves radial deformation of the pipe by applying pressure to it from inside the working medium, the pressure is applied to a pulsating frequency of 2-3 Hz.
В результате многократного деформировани трубы имеет место взаимное внедрение выступов микрошероховатостй поверхностей трубы и рещетки вплоть до холодной их сварки благодар чему обеспечиваетс возрастание площади фактического контакта элементов соединени . В св зи с отмеченным эффектом существенно увеличиваютс герметичность и прочность соединений и создаютс услови дл сохранени стабильности качест ва соединений при длительной эксплуатации ашхарата.As a result of repeated deformation of the pipe, the interlocking of the protrusions of the microroughness of the surfaces of the pipe and the lattice up to their cold welding takes place, thereby providing an increase in the area of the actual contact of the joint elements. Due to the marked effect, the tightness and strength of the joints are significantly increased and conditions are created to maintain the stability of the joints during long-term operation of the ashkharat.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802966168A SU969496A1 (en) | 1980-07-22 | 1980-07-22 | Method for connecting pipes to tube plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802966168A SU969496A1 (en) | 1980-07-22 | 1980-07-22 | Method for connecting pipes to tube plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU969496A1 true SU969496A1 (en) | 1982-10-30 |
Family
ID=20911875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802966168A SU969496A1 (en) | 1980-07-22 | 1980-07-22 | Method for connecting pipes to tube plates |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU969496A1 (en) |
-
1980
- 1980-07-22 SU SU802966168A patent/SU969496A1/en active
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