CN109374221A - It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance - Google Patents
It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance Download PDFInfo
- Publication number
- CN109374221A CN109374221A CN201811502980.XA CN201811502980A CN109374221A CN 109374221 A CN109374221 A CN 109374221A CN 201811502980 A CN201811502980 A CN 201811502980A CN 109374221 A CN109374221 A CN 109374221A
- Authority
- CN
- China
- Prior art keywords
- temperature
- shell
- seal ring
- gas
- experimental rig
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
Abstract
The invention discloses a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, including air delivery device, exhaust apparatus, air entraining device 13, detection device, gland 6, shell 7 and heating device, shell 7 is tube structure, end face at the top of cylinder is provided with annular groove, seal cavity is cooperatively formed for placing metal stationary seal ring 4, while with gland 6；Heating device heats shell 7；The air delivery device is for gas to be input into shell 7, exhaust apparatus is used to for the gas of high temperature and pressure being discharged from experimental rig internal cavity, 13 one end of air entraining device is set at 4 sealing surface of metal stationary seal ring, gas for that will reveal is drawn, and detection device detects pressure, temperature, released gas rate inside shell 7.Compared to the experiments of sealing performance method of previous metal static seal, the present invention can be tested and be tested to the sealing performance of metal static seal under the conditions of the wide temperature field of room temperature to high temperature, more possess clear superiority under the high temperature conditions.
Description
Technical field
The invention patent belongs to Aeroengine Design field, is related to a kind of for testing metal stationary seal ring elevated-temperature seal
The experimental rig of performance.
Background technique
Along with the promotion of aero-engine thermodynamic cycle parameter, the environment temperature of engine interior is higher and higher, high temperature
The operating condition duration is increasingly longer.Therefore, metal static seal starts to replace rubber seal, graphite grazing, is widely used in and starts
The sealing of the casing, the junction of shell, ring flange of machine.If these positions generate bulk gas leakage for the property to engine
Serious adverse consequence can be brought, therefore the test job of the sealing performance of metal static seal is particularly important.
In the latest 20 years, the performance test work of metal static seal has been focused into how to test and examine metal static seal
Sealing performance under the conditions of room temperature is to 200 DEG C；Currently, common test method is smeared near the sealing surface of test tool
Suds see if there is bubble, qualitatively judge whether metal static seal leaks.Original of this method due to manual operation
Because can not often judge seal interface entire circumferential with the presence or absence of leakage, and can not the metal static seal of measuring of accurate quantification exist
The released gas rate of different operating conditions.It is even more impossible to test the sealing performance of metal static seal under hot conditions.
Due to lacking to warming-up device, leak detecting device, the intensive assembly of the test equipment of the leakage of sealing be coupled, it is right
The accurate test of sealing performance under 450 DEG C~800 DEG C of hot conditions is still problem.Therefore the sealing performance under hot conditions
Usually the sealing performance under the full working scope of metal static seal is accurately tested and tried without test due to enforcement difficulty is big
Data are tested still extremely to lack.The slip that this status objectively seriously constrains metal static seal examines work, also hinders
Metal static seal optimization design research, so that the performance boost to engine has an adverse effect.
Summary of the invention
The purpose of the present invention:
In order to overcome the shortcomings of that existing experimental technique, the present invention provide a kind of for testing metal stationary seal ring elevated-temperature seal
The experimental rig scheme of performance.So that device has the ability of active control gas temperature, while experimental rig is had fastly
The fast accurate ability for reading sealing leak rate, be finally reached efficient quick obtain room temperature under the conditions of 450 DEG C~800 DEG C of high temperature not
With the purpose of the accurate slip of metal static seal under pressure condition.
Technical solution of the present invention:
It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, including air delivery device, exhaust apparatus,
Air entraining device 13, detection device, gland 6, shell 7 and heating device, shell 7 are tube structure, and the end face at the top of cylinder is provided with
Annular groove cooperatively forms seal cavity for placing metal stationary seal ring 4, while with gland 6；Heating device heats shell 7；
For gas to be input into shell 7, exhaust apparatus is used for the gas of high temperature and pressure inside experimental rig the air delivery device
Cavity discharge, 13 one end of air entraining device are set at 4 sealing surface of metal stationary seal ring, and the gas for that will reveal is drawn, detection
Device detects pressure, temperature, released gas rate inside shell 7.
The heating device uses electric heater unit 12, and specially industrial flexible electric heating blanket is coated on outside shell 7
Side heats shell 7, and electric heater unit 12 includes heatproof insulation heat preservation layer, heating wire, temperature control element, can be controlled by voltage
Device controls the temperature of electric heater unit 12, and highest can be heated to 1000 DEG C.
The air delivery device includes air collector 1, machinery valve 2 and air inlet pipe 3, stores inert gas in the air collector 1,
4 millimeters of wall thickness, pressure 20MPa；The machinery valve 2 is a kind of mechanical throttle decompression valve, be can control into seal chamber
The air quality flow of body；The air inlet pipe 3 is the elongated tubular construction of high-temperature alloy material manufacture, and high temperature and high pressure gas is led to
Enter 7 internal cavity of shell, the flow and pressure of gas are entered by the control of machinery valve 2 installed on air inlet pipeline.
Helium or nitrogen are stored as in the air collector 1.
The exhaust apparatus is set on gland 6, including exhaust pipe 10 and welding piece 11；Exhaust pipe 10 is high temperature alloy material
The elongated tubular construction for expecting manufacture, is set on gland 6, is connected to internal and external environment, and welding piece 11 is welded on the big compression ring of exhaust pipe 10
The port in border, is blocked, and when needing to be vented after the completion of test, is bored in 11 center of welding piece and is opened aperture.
Described 13 for high temperature alloy manufacture elongate conduits, one end is through at 4 sealing surface of metal stationary seal ring, the other end
Across shell 7 and the electric heater unit 12 outside it is coated, leaked gas is drawn into experimental rig.
The detection device includes display platform 15, gas leakage detector 14, temperature sensor 8 and pressure sensor 9, gas
Leak detector 14 and air entraining device 13 cooperate, the automatic helium gas molecules for capturing leakage, and measure released gas rate；Temperature sensor 8
It is arranged on gland 6 and protrudes into seal cavity with pressure sensor 9, for the temperature and pressure of real-time detection seal cavity, shows
Show that platform 15 connects pressure sensor 6, temperature sensor 7, gas leakage detector 14, collects the number such as pressure, temperature, released gas rate
According to simultaneously real-time display.
The gland 6 is pressed on shell 7 by pretension bolt 5.
The gland 6 is plate structure, using high-temperature alloy material, thickness 5mm, for compressing metal stationary seal ring 4.
The shell 7 uses high-temperature alloy material, wall thickness 20mm.
Beneficial effects of the present invention: compared to the experiments of sealing performance method of previous metal static seal, the present invention can be
The sealing performance of metal static seal is tested and tested under the conditions of room temperature to the wide temperature field of high temperature, under the high temperature conditions more
Possess clear superiority.
First, experimental rig hull outside is coated on by electric heater unit (a kind of industrial flexible electric heating blanket), is risen
To the effect heated to experimental rig, the active control to gas temperature is realized, and temperature range is wide；Second, due to using
Air leakage detector accurately can directly read slip, accelerate examination while display platform reads temperature, pressure
Test efficiency.
By preliminary experimental study, a kind of test for testing metal stationary seal ring elevated-temperature seal performance of the present invention is filled
The operating condition set is good, quickly can obtain the accurate slip of metal static seal under the high temperature conditions.
Therefore a kind of experimental rig for testing metal stationary seal ring elevated-temperature seal performance of the present invention avoids original examination
The defect of proved recipe method can accurately measure the slip of the precision metal under each operating condition；It is quiet metal can be tested under the high temperature conditions
The sealing performance of sealing.The present invention has versatility, can be used under different operating conditions testing rubber seal, graphite grazing etc. various
The static sealing performance of dynamic and static sealing.
Detailed description of the invention
Fig. 1 is that the present invention is a kind of for testing the structural representation of the experimental rig of metal stationary seal ring elevated-temperature seal performance
Figure.
Wherein, 1- air collector, 2- machinery valve, 3- air inlet pipe, 4- metal static seal, 5- pretension bolt, 6- gland, 7- shell
Body, 8- temperature sensor, 9- pressure sensor, 10- exhaust pipe, 11- welding piece, 12- electric heater unit, 13- air entraining device,
14- gas leakage detector, 15- display platform.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Referring to Fig. 1, it is in the specific embodiment of the invention, one kind is for testing metal stationary seal ring elevated-temperature seal performance
Experimental rig structural schematic diagram.It specifically included air collector 1, machinery valve 2, air inlet pipe 3, metal stationary seal ring 4, pre-tightened
Bolt 5, gland 6, shell 7, temperature sensor 8, pressure sensor 9, exhaust pipe 10, welding piece 11, electric heater unit 12, bleed
Device 13, gas leakage detector 14, display platform 15.Wherein, high-pressure helium is stored in air collector 1, maximum pressure 30MPa is used
It is for experiment in the gas for providing certain pressure.Machinery valve 2 is a kind of mechanical throttle decompression valve, be can control into close
Seal the air quality flow of cavity.Air inlet pipe 3 is a kind of elongated tubular construction of high-temperature alloy material manufacture, main function be by
The gas of high temperature and pressure is passed through experimental rig internal cavity, can be by being equipped with mechanical valve on air inlet pipeline to control air inlet pipe
Gas flow and pressure in 3.Metal stationary seal ring 4 is one piece of annular shape metallic leak-proof structure, is the need in aero-engine
The tested part of the part and this experimental rig that use.Pretension bolt 5 is one group of bolt arrangement, for gland 6 to be pressed to
On shell 7.Gland 6 is the plate structure of the thickness 5mm of one piece of high-temperature alloy material, for compressing metal stationary seal ring 4.Shell
Body 7 is the tube structure of the wall thickness 20mm of one piece of high-temperature alloy material, side end face opening place metal stationary seal ring 4 simultaneously with
Gland 6 cooperatively forms seal cavity.The setting of temperature sensor 8 protrudes into seal cavity on gland 6, is used for real-time detection seal chamber
The temperature of body.The setting of pressure sensor 9 protrudes into seal cavity on gland 6, the pressure for real-time detection seal cavity.Exhaust
Pipe 10, is a kind of elongated tubular construction of high-temperature alloy material manufacture, and main function is to fill the gas of high temperature and pressure from test
Set internal cavity discharge.When test, a piece of welding piece 11 is welded in 10 exit of exhaust pipe and is blocked.It is needed after the completion of test
When being vented, the aperture for opening diameter 2mm is bored in 11 center of welding piece.Welding piece 11 is a kind of high temperature alloy sheet body, welding
In the outlet of exhaust pipe 10, when main function is test, the gas outlet channels of exhaust pipe 10 are truncated, prevent gas from filling from test
Seal cavity is set to leak from exhaust pipe 10.Electric heater unit 12 is a kind of industrial flexible electric heating blanket, mature industrial products,
It is mainly made of heatproof insulation heat preservation layer, heating wire, temperature control element etc., electric heater unit 12 can be controlled by voltage controller
Temperature, highest can be heated to 1000 DEG C, and electric heater unit 12 is coated on 7 outside of shell, plays the role of heating experimental rig.
Air entraining device 13 is a kind of elongate conduit structure of high temperature alloy manufacture, through at 4 sealing surface of metal stationary seal ring, can be incited somebody to action
Leaked gas draws experimental rig.Gas leakage detector 14 is the automatic helium gas molecules for capturing leakage of one kind and then measurement gas is let out
The device of leak rate.Display platform 15 is a kind of integrated platform, connects pressure sensor 6, temperature sensor 7, gas leakage detector 14.
The data such as the pressure, temperature, released gas rate of upload and real-time display can be collected automatically.
When test, operating condition of test is arranged by the sequence of temperature, pressure from low to high, adjusts gas by adjusting machinery valve 2
Body pressure adjusts the temperature of experimental rig and gas by adjusting electric heater unit 12.Gas leakage detector 14 is in air entraining device 13
Exit survey each operating condition of test slip.Actual accurate pressure, temperature and slip when test can all pass through
Display platform 15 is read.
The present invention is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, is not limited only to test 450
DEG C~sealing performance of 800 DEG C of metal static seal, it may also be used for the leakproofness of the metal static seal of test room temperature to 450 DEG C
Energy.A kind of experimental rig for testing metal stationary seal ring elevated-temperature seal performance of the present invention avoids lacking for original test method
It falls into, can accurately measure the slip of the precision metal under each operating condition；The sealing of metal static seal can be tested under the high temperature conditions
Performance.The present invention has versatility, when tested metal static seal (5) replaces with other types such as rubber seal, graphite grazing
Sealing element when, still can be used for testing sealing element static sealing performance.
Claims (10)
1. a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, which is characterized in that including air delivery device,
Exhaust apparatus, air entraining device (13), detection device, gland (6), shell (7) and heating device, shell (7) are tube structure, cylinder
End face at the top of body is provided with annular groove, cooperatively forms seal cavity for placing metal stationary seal ring (4), while with gland (6)；
Heating device heats shell (7)；The air delivery device is used to for gas being input into shell (7), and exhaust apparatus is used for high temperature
The gas of high pressure is discharged from experimental rig internal cavity, and air entraining device (13) one end is set to metal stationary seal ring (4) sealing surface
Place, the gas for that will reveal are drawn, and detection device detects shell (7) internal pressure, temperature, released gas rate.
2. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In, the heating device uses electric heater unit (12), and specially industrial flexible electric heating blanket is coated on the outside of shell (7),
Shell (7) are heated, electric heater unit (12) includes heatproof insulation heat preservation layer, heating wire, temperature control element, can be controlled by voltage
Device controls the temperature of electric heater unit (12), and highest can be heated to 1000 DEG C.
3. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the air delivery device includes air collector (1), machinery valve (2) and air inlet pipe (3), stores indifferent gas in the air collector (1)
Body, 4 millimeters of wall thickness, pressure 20MPa；The machinery valve (2) is a kind of mechanical throttle decompression valve, be can control into close
Seal the air quality flow of cavity；The air inlet pipe (3) is the elongated tubular construction of high-temperature alloy material manufacture, by high temperature and pressure
Gas is passed through shell (7) internal cavity, and the flow and pressure of gas are entered by machinery valve (2) control installed on air inlet pipeline
Power.
4. according to claim 3 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the air collector (1) is interior to be stored as helium or nitrogen.
5. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the exhaust apparatus is set on gland (6), including exhaust pipe (10) and welding piece (11)；Exhaust pipe (10) is high temperature conjunction
The elongated tubular construction of golden material manufacture, is set on gland (6), is connected to internal and external environment, welding piece (11) is welded on exhaust pipe
(10) port of atmospheric environment, is blocked, and when needing to be vented after the completion of test, is bored in welding piece (11) center and is opened aperture.
6. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In described (13) are the elongate conduit of high temperature alloy manufacture, and one end is through at metal stationary seal ring (4) sealing surface, the other end
Across shell (7) and the electric heater unit (12) outside it is coated, leaked gas is drawn into experimental rig.
7. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In, the detection device include display platform (15), gas leakage detector (14), temperature sensor (8) and pressure sensor (9),
Gas leakage detector (14) and air entraining device (13) cooperate, the automatic helium gas molecules for capturing leakage, and measure released gas rate；Temperature
Sensor (8) and pressure sensor (9) are arranged on gland (6) and protrude into seal cavity, for real-time detection seal cavity
Temperature and pressure, display platform (15) connect pressure sensor (6), temperature sensor (7), gas leakage detector (14), collect pressure
The data such as power, temperature, released gas rate and real-time display.
8. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the gland (6) is pressed on shell (7) by pretension bolt (5).
9. according to claim 6 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the gland (6) is plate structure, using high-temperature alloy material, thickness 5mm, for compressing metal stationary seal ring (4).
10. according to claim 1 a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance, feature exists
In the shell (7) uses high-temperature alloy material, wall thickness 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502980.XA CN109374221A (en) | 2018-12-10 | 2018-12-10 | It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502980.XA CN109374221A (en) | 2018-12-10 | 2018-12-10 | It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109374221A true CN109374221A (en) | 2019-02-22 |
Family
ID=65372935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811502980.XA Pending CN109374221A (en) | 2018-12-10 | 2018-12-10 | It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109374221A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441046A (en) * | 2019-09-10 | 2019-11-12 | 南昌航空大学 | It is a kind of that ring test switching device is obturaged based on graphite-seal ring |
| CN110441047A (en) * | 2019-09-10 | 2019-11-12 | 南昌航空大学 | It is a kind of that ring test switching device is obturaged based on corrugated ring |
| CN112611552A (en) * | 2020-11-27 | 2021-04-06 | 中国航发四川燃气涡轮研究院 | Aeroengine high temperature high altitude ventilation valve test device |
| WO2021103040A1 (en) * | 2019-11-26 | 2021-06-03 | 深圳大学 | Testing apparatus and testing method for high-pressure sealing ring |
| CN112903208A (en) * | 2021-01-25 | 2021-06-04 | 北京化工大学 | Test system and method for realizing performance simulation test of high-temperature metal sealing ring |
| CN114061851A (en) * | 2021-10-12 | 2022-02-18 | 中核核电运行管理有限公司 | Self-sealing metal sealing ring performance testing system and method |
| CN114812940A (en) * | 2022-04-21 | 2022-07-29 | 北京化工大学 | High-temperature air tightness test system and method for W-shaped metal sealing ring for space flight aircraft |
| CN115420438A (en) * | 2022-08-05 | 2022-12-02 | 中广核工程有限公司 | Modularized static seal test detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205101U (en) * | 1985-11-23 | 1986-10-15 | 刘长富 | Multipurpose electric heater |
| JP2009180582A (en) * | 2008-01-30 | 2009-08-13 | Gyoseiin Genshino Iinkai Kakuno Kenkyusho | Device for detecting high-temperature leakage in sofc battery pack |
| CN102435402A (en) * | 2011-12-01 | 2012-05-02 | 西北核技术研究所 | Device for detecting leak rate of sealing ring |
| CN103712756A (en) * | 2013-12-31 | 2014-04-09 | 苏州宝骅机械技术有限公司 | Quantitative leakage detecting method for pressure system |
| CN204740107U (en) * | 2015-03-26 | 2015-11-04 | 自贡市佳世特密封制品有限公司 | O type sealing washer leak rate detection device |
| CN107300088A (en) * | 2017-08-17 | 2017-10-27 | 株洲新奥燃气有限公司 | A kind of gas pipeline welding patch component with pressure and its craft leakage mending method |
| CN207394356U (en) * | 2017-08-07 | 2018-05-22 | 天津洲宇机电设备科技有限公司 | Liquid ammonia steel bottle electric blanket |
-
2018
- 2018-12-10 CN CN201811502980.XA patent/CN109374221A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205101U (en) * | 1985-11-23 | 1986-10-15 | 刘长富 | Multipurpose electric heater |
| JP2009180582A (en) * | 2008-01-30 | 2009-08-13 | Gyoseiin Genshino Iinkai Kakuno Kenkyusho | Device for detecting high-temperature leakage in sofc battery pack |
| CN102435402A (en) * | 2011-12-01 | 2012-05-02 | 西北核技术研究所 | Device for detecting leak rate of sealing ring |
| CN103712756A (en) * | 2013-12-31 | 2014-04-09 | 苏州宝骅机械技术有限公司 | Quantitative leakage detecting method for pressure system |
| CN204740107U (en) * | 2015-03-26 | 2015-11-04 | 自贡市佳世特密封制品有限公司 | O type sealing washer leak rate detection device |
| CN207394356U (en) * | 2017-08-07 | 2018-05-22 | 天津洲宇机电设备科技有限公司 | Liquid ammonia steel bottle electric blanket |
| CN107300088A (en) * | 2017-08-17 | 2017-10-27 | 株洲新奥燃气有限公司 | A kind of gas pipeline welding patch component with pressure and its craft leakage mending method |
Non-Patent Citations (1)
| Title |
|---|
| 李向东: "《环境污染与修复》", 31 January 2016 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441046A (en) * | 2019-09-10 | 2019-11-12 | 南昌航空大学 | It is a kind of that ring test switching device is obturaged based on graphite-seal ring |
| CN110441047A (en) * | 2019-09-10 | 2019-11-12 | 南昌航空大学 | It is a kind of that ring test switching device is obturaged based on corrugated ring |
| CN110441047B (en) * | 2019-09-10 | 2020-11-20 | 南昌航空大学 | Sealing ring test switching device based on corrugated ring |
| WO2021103040A1 (en) * | 2019-11-26 | 2021-06-03 | 深圳大学 | Testing apparatus and testing method for high-pressure sealing ring |
| CN112611552A (en) * | 2020-11-27 | 2021-04-06 | 中国航发四川燃气涡轮研究院 | Aeroengine high temperature high altitude ventilation valve test device |
| CN112903208A (en) * | 2021-01-25 | 2021-06-04 | 北京化工大学 | Test system and method for realizing performance simulation test of high-temperature metal sealing ring |
| CN114061851A (en) * | 2021-10-12 | 2022-02-18 | 中核核电运行管理有限公司 | Self-sealing metal sealing ring performance testing system and method |
| CN114812940A (en) * | 2022-04-21 | 2022-07-29 | 北京化工大学 | High-temperature air tightness test system and method for W-shaped metal sealing ring for space flight aircraft |
| CN114812940B (en) * | 2022-04-21 | 2023-01-24 | 北京化工大学 | High-temperature air tightness testing system and method for W-shaped metal sealing ring for aerospace aircraft |
| CN115420438A (en) * | 2022-08-05 | 2022-12-02 | 中广核工程有限公司 | Modularized static seal test detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109374221A (en) | It is a kind of for testing the experimental rig of metal stationary seal ring elevated-temperature seal performance | |
| CN109470603B (en) | Visual experiment system and method for measuring and representing contact angle in high-temperature and high-pressure environment | |
| CN113188974B (en) | High-pressure hydrogen permeation test device and method for liner material of IV-type gas cylinder | |
| CN208333779U (en) | A kind of leakage detection apparatus of non-cavity body structure part | |
| CN201464127U (en) | Exhaust manifold leakage test device | |
| CN106525701B (en) | High-frequency fatigue overheating testing device in oxyhydrogen steam environment | |
| JP2007147327A (en) | Air leakage inspection device | |
| CN104777030B (en) | A kind of controllable environment high temperature mechanics experimental machine | |
| JP2011089940A (en) | Leakage measurement apparatus of gasket | |
| CN101694432B (en) | Method for evaluating reliability of thermal barrier coating system and device thereof | |
| CN214621639U (en) | Air leakage detection device for air duct airtight system | |
| CN109030039B (en) | System and method for detecting performance of heat regenerator | |
| CN109292113B (en) | Temperature control thermostat testing device and testing method | |
| CN112903275B (en) | Sectional type pull rod sealing system for thermal engine coupling fatigue test of blade | |
| CN207850604U (en) | Pressure shell leaks hunting tooling | |
| CN110375919A (en) | Three-element catalytic agent carrier back pressure detection device | |
| CN209961426U (en) | Quick measuring device of muffler leakproofness | |
| CN112903274B (en) | Turbine blade temperature cycle load test equipment | |
| CN112924179B (en) | Novel labyrinth seal structure and pull rod sealing system | |
| CN112414739B (en) | Gas turbine experiment table capable of carrying out transient and steady state measurement tests and test method | |
| CN109060578B (en) | Thermal fatigue testing device for cylinder cover of diesel engine | |
| CN210108640U (en) | Water heater gas tightness detection device | |
| CN206891867U (en) | Silicon chip mechanical strength measurement apparatus | |
| CN216484194U (en) | Natural gas detection sampling device | |
| CN213956671U (en) | On-line pressure testing device for floating head heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |