CN203705152U - A metal corrugated pipe high temperature high pressure fatigue life test apparatus - Google Patents
A metal corrugated pipe high temperature high pressure fatigue life test apparatus Download PDFInfo
- Publication number
- CN203705152U CN203705152U CN201320809811.7U CN201320809811U CN203705152U CN 203705152 U CN203705152 U CN 203705152U CN 201320809811 U CN201320809811 U CN 201320809811U CN 203705152 U CN203705152 U CN 203705152U
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- China
- Prior art keywords
- kettle
- test
- flange
- pressure
- kettle body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 title abstract description 3
- 238000009413 insulation Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 210000004907 gland Anatomy 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A metal corrugated pipe high temperature high pressure fatigue life test apparatus comprises a test platform and a pressure system. The technical main points are that: the pressure system is connected with a control system; an output terminal of the test platform is provided with a connecting rod; a thermal insulation portion with an opening in the top is arranged on the test platform; a kettle body with an opening in the top is arranged inside the thermal insulation portion; a temperature sensor is arranged inside the kettle body; heating portions are arranged in an interlayer between the thermal insulation portion and the kettle body; the pressure system is connected with the kettle body through a liquid inlet pipe; a pressure transducer connected with the control system is arranged on the liquid inlet pipe; the top portion of the kettle body is sealed through a kettle cover with is provided with a perforating hole in the center; the perforating hole of the kettle cover is sealed through a gland flange; a graphite packing is arranged inside the perforating hole of the kettle cover; test flanges are arranged between the kettle body and the kettle cover; first winding pads are arranged between the test flange and the kettle body; second winding pads are arranged between the test flange and the kettle cover; and the connecting rod extends into the kettle body, so that fatigue life test requirements for different pressures, different temperatures and different displacements for corrugated pipes are satisfied.
Description
Technical field
The utility model relates to corrugated tube fatigue experimental device, especially a kind of metallic bellows High Temperature High Pressure fatigue life testing apparatus.
Background technology
Corrugated tube is conventional flexible member, mainly comprises metallic bellows, electro-deposition corrugated tube, welding bellows, corrugated tube heat exchanger, diaphragm and diaphragm capsule, metal hose etc.Corrugated tube utilizes the self property of resilient material, changes the shape and size of element under extraneous load (concentrated force, pressure, moment etc.) effect, after load removal, resets.Therefore can be used for the functions such as measurement, connection, conversion, compensation, isolation, sealing, damping, widespread use in the industrial circles such as Aero-Space, boats and ships, automobile, petrochemical industry, electric power, nuclear energy.
In recent years, along with scientific and technical development, metallic bellows is usually used in the bad working environments such as High Temperature High Pressure, has therefore improved the performance requirement to metallic bellows.In manufacturing process, need testing the serviceable life under corrugated tube extreme environment, but there is following defect in existing testing equipment: (1) cannot meet requirement fatigue lifetime of High Temperature High Pressure, conventionally can only convert according to correlation experience method, therefore measurement result error is larger, and value for reference is lower; (2) while carrying out High Temperature High Pressure fatigue life test as need, bellows component can only be arranged on valve or connecting line, carries out High Temperature High Pressure examination fatigue lifetime with the equipment that uses corrugated tube simultaneously, and process of the test is inconvenience very.Therefore need existing metallic bellows fatigue experimental device to improve.
Utility model content
The purpose of this utility model is to provide a kind of metallic bellows High Temperature High Pressure fatigue life testing apparatus, met the fatigue life test requirement of corrugated tube different pressures, different temperatures, different displacements.
The purpose of this utility model is achieved in that this metallic bellows High Temperature High Pressure fatigue life testing apparatus comprises test platform, pressure system, it is characterized in that: described pressure system is connected with control system, the output terminal of test platform is provided with connecting rod, test platform is provided with open-topped insulation portion, in insulation portion, be provided with open-topped kettle, in kettle, be provided with the temperature sensor being connected with control system, between insulation portion and kettle, be provided with interlayer, in interlayer, be provided with the heating part being connected with control system, pressure system is connected with kettle by the feed tube that runs through insulation portion, feed tube is provided with the pressure transducer being connected with control system, kettle top is provided with the kettle cover sealing of through hole by the central heart, the through hole of kettle cover seals by gland flange, is provided with graphite packing in the through hole of kettle cover, between kettle and kettle cover, be provided with test flange, between test flange and kettle, be provided with the first wound gasket, between test flange and kettle cover, be provided with the second wound gasket, connecting rod extend in kettle after running through successively gland flange, graphite packing, the first wound gasket, test flange, the second wound gasket from top to bottom.
Between described kettle and kettle cover, be bolted.
The advantage the utlity model has and positive technique effect are: the upper end of metallic bellows and test flange welding, and bottom and connecting rod end welding, metallic bellows is socketed on connecting rod and is placed in kettle.By the pressure in pressure system control kettle, control the medium temperature in kettle by heating part.Drive metallic bellows to make axial tension and compression movement by connecting rod, thereby realized the fatigue life test of metallic bellows under different temperatures, different pressures, different displacement.In kettle, be provided with the temperature sensor being connected with control system, feed tube is provided with the pressure transducer being connected with control system, thereby realizes the Long-distance Control to whole test unit, easy to use.Kettle top is provided with the kettle cover sealing of through hole by the central heart, the through hole of kettle cover seals by gland flange, in the through hole of kettle cover, be provided with graphite packing, adopt after graphite packing, in the time of metallic bellows fatigue failure, avoid the high-temperature high-pressure medium in kettle along the gap place ejection between kettle cover and connecting rod, damage personnel or equipment.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of kettle in Fig. 1.
Description of reference numerals: 1 kettle, 2 heating parts, 3 insulation portions, 4 metallic bellowss, 5 first wound gaskets, 6 test flanges, 7 second wound gaskets, 8 bolts, 9 kettle covers, 10 graphite packings, 11 gland flange, 12 connecting rods, 13 test platforms, 14 pressure systems, 15 feed tubes.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1 ~ 2.This metallic bellows High Temperature High Pressure fatigue life testing apparatus comprises the parts such as test platform 13, pressure system.Wherein, pressure system 14 is connected with control system, and the output terminal of test platform 13 is provided with connecting rod 12, and test platform 13 is provided with open-topped insulation portion 3, reduces the thermal losses of kettle 1.In insulation portion 3, be provided with open-topped kettle 1, in kettle 1, be provided with the temperature sensor (not shown) being connected with control system (not shown), between insulation portion 3 and kettle 1, be provided with interlayer, in interlayer, be provided with heating part 2, pressure system 14 is connected with kettle 1 by the feed tube 15 that runs through insulation portion 3, and feed tube 15 is provided with the pressure transducer being connected with control system.Feed tube 15 one end and kettle 1 weld, and the other end is connected with pressure system 14 by screw thread.In order to prevent that high-temperature high-pressure medium is back in pressure system, also need between feed tube 15 and pressure system 14, condenser pipe and one-way cock be installed.The kettle cover 9 that kettle 1 top is provided with through hole by the central heart seals, and between kettle 1 and kettle cover 9, is connected by bolt 8.The through hole of kettle cover 9 seals by gland flange 11, filled stone disc root 10 in the through hole of kettle cover 9, and gland flange 11 compresses graphite packing 10.Between kettle 1 and kettle cover 9, be provided with test flange 6, between test flange 6 and kettle 1, seal by the first wound gasket 5, between test flange 6 and kettle cover 9, seal by the second wound gasket 7.Connecting rod 12 extend in kettle 1 after running through successively gland flange 11, graphite packing 10, the first wound gasket 5, test flange 6, the second wound gasket 7 from top to bottom.
Weld with test flange 6 upper end of metallic bellows 4, bottom and connecting rod 12 end welding, and metallic bellows 4 is socketed on connecting rod 12 and is placed in kettle 1.Control the pressure in kettle by pressure system 14, control the medium temperature in kettle 1 by heating part 2.Drive metallic bellows to make axial tension and compression movement by connecting rod 12, by the pressure in control system controlled pressure system control kettle, pass pressure data back control system by the pressure transducer on feed tube; Pass the Temperature numerical in kettle back control system by the temperature sensor in kettle.Thereby realize the fatigue life test of metallic bellows under different temperatures, different pressures, different displacement.Realize extreme pressure 42MPa(normal temperature), the metallic bellows fatigue life test of 400 DEG C of ultimate temperatures, and can carry out fatigue life test for the corrugated tube of different specification size, different operating modes.
If 260 DEG C of test temperature >, the material of first, second wound gasket can be selected graphite; If test temperature≤260 DEG C, the material of first, second wound gasket can be selected teflon.The inside pressurising medium of kettle can be selected water (as industrial pure water) or oil (as conduction oil) according to concrete test.In addition, metallic bellows High Temperature High Pressure fatigue life testing apparatus of the present utility model also can be used for carrying out the static strength pressure test under metallic bellows high temperature.
Claims (2)
1. a metallic bellows High Temperature High Pressure fatigue life testing apparatus, comprise test platform, pressure system, it is characterized in that: described pressure system is connected with control system, the output terminal of test platform is provided with connecting rod, test platform is provided with open-topped insulation portion, in insulation portion, be provided with open-topped kettle, in kettle, be provided with the temperature sensor being connected with control system, between insulation portion and kettle, be provided with interlayer, in interlayer, be provided with the heating part being connected with control system, pressure system is connected with kettle by the feed tube that runs through insulation portion, feed tube is provided with the pressure transducer being connected with control system, kettle top is provided with the kettle cover sealing of through hole by the central heart, the through hole of kettle cover seals by gland flange, is provided with graphite packing in the through hole of kettle cover, between kettle and kettle cover, be provided with test flange, between test flange and kettle, be provided with the first wound gasket, between test flange and kettle cover, be provided with the second wound gasket, connecting rod extend in kettle after running through successively gland flange, graphite packing, the first wound gasket, test flange, the second wound gasket from top to bottom.
2. metallic bellows High Temperature High Pressure fatigue life testing apparatus according to claim 1, is characterized in that: between described kettle and kettle cover, be bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809811.7U CN203705152U (en) | 2013-12-11 | 2013-12-11 | A metal corrugated pipe high temperature high pressure fatigue life test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809811.7U CN203705152U (en) | 2013-12-11 | 2013-12-11 | A metal corrugated pipe high temperature high pressure fatigue life test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705152U true CN203705152U (en) | 2014-07-09 |
Family
ID=51055574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320809811.7U Expired - Lifetime CN203705152U (en) | 2013-12-11 | 2013-12-11 | A metal corrugated pipe high temperature high pressure fatigue life test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705152U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674534A (en) * | 2013-12-11 | 2014-03-26 | 沈阳仪表科学研究院有限公司 | Metal-corrugated-pipe high-temperature and high-pressure fatigue life testing device |
| CN107631762A (en) * | 2017-10-31 | 2018-01-26 | 无锡市永兴金属软管有限公司 | A kind of fuel gas transmission metal hose and joint tension intensity detection means |
| CN107884138A (en) * | 2017-10-31 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of detection method of metal hose and joint tension intensity |
| CN113466067A (en) * | 2021-08-31 | 2021-10-01 | 江苏新恒基特种装备股份有限公司 | Bellows high temperature pressure-bearing fatigue test device |
-
2013
- 2013-12-11 CN CN201320809811.7U patent/CN203705152U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674534A (en) * | 2013-12-11 | 2014-03-26 | 沈阳仪表科学研究院有限公司 | Metal-corrugated-pipe high-temperature and high-pressure fatigue life testing device |
| CN107631762A (en) * | 2017-10-31 | 2018-01-26 | 无锡市永兴金属软管有限公司 | A kind of fuel gas transmission metal hose and joint tension intensity detection means |
| CN107884138A (en) * | 2017-10-31 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of detection method of metal hose and joint tension intensity |
| CN107884138B (en) * | 2017-10-31 | 2019-09-13 | 无锡市永兴金属软管有限公司 | A kind of detection method of metal hose and connector tension intensity |
| CN113466067A (en) * | 2021-08-31 | 2021-10-01 | 江苏新恒基特种装备股份有限公司 | Bellows high temperature pressure-bearing fatigue test device |
| CN113466067B (en) * | 2021-08-31 | 2021-11-19 | 江苏新恒基特种装备股份有限公司 | Bellows high temperature pressure-bearing fatigue test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |