CN111076875A - Adjustable runner high temperature dynamic seal directly links test device - Google Patents
Adjustable runner high temperature dynamic seal directly links test device Download PDFInfo
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- CN111076875A CN111076875A CN201911252721.0A CN201911252721A CN111076875A CN 111076875 A CN111076875 A CN 111076875A CN 201911252721 A CN201911252721 A CN 201911252721A CN 111076875 A CN111076875 A CN 111076875A
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- adjustable
- adjustable flow
- flow channel
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- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- 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
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Abstract
The invention discloses an adjustable flow channel high-temperature dynamic seal direct connection test device which comprises a spray pipe, an adjustable flow channel, a back pressure simulation device, a flow measurement device, an adjustable actuating mechanism and a temperature measurement device, wherein the spray pipe is connected with the adjustable flow channel; the device comprises a nozzle, an adjustable flow channel, a back pressure simulation device, a flow measurement device, an adjustable actuating mechanism, a temperature measurement device and a temperature measurement device, wherein the nozzle is fixedly connected with an adjustable flow channel inlet, the back pressure simulation device is fixedly connected with the adjustable flow channel outlet, the flow measurement device is used for detecting the flow of gas leaked by the adjustable flow channel, an actuating connecting rod of the adjustable actuating mechanism extends into the adjustable flow channel, the height of an adjusting plate of the adjustable flow channel is adjusted, and the temperature measurement device is used for measuring the temperature of the gas leaked by the adjustable flow.
Description
Technical Field
The invention belongs to the technical field of ramjet engines, and particularly relates to an adjustable runner high-temperature dynamic seal direct connection test device.
Background
In the wide speed area air suction type engine, a high temperature dynamic sealing structure of an adjustable flow passage is arranged between a movable adjusting plate and a side wall plate, as shown in fig. 1, wherein 01 is the movable adjusting plate, 02 is the side wall plate, 03 is a high temperature dynamic sealing element, 04 is a flow passage cavity for adjusting high temperature and high pressure gas of air intake and exhaust, 05 is an equipment cavity for installing an adjusting mechanism, and 06 is the up-and-down movement direction of the movable adjusting plate. The high-temperature dynamic seal is used for preventing high-temperature and high-pressure gas in the runner cavity 04 from leaking into the equipment cavity 05. The gas leakage amount of the high-temperature sealing element is an important index of high-temperature dynamic sealing, however, most of the existing high-temperature dynamic sealing verification tests are material attribute researches, and the high-temperature verification tests of the sealing material are directly carried out by simulating a high-temperature environment in modes of oxyacetylene heating equipment or a sintering furnace and the like. However, the high-temperature dynamic sealing environment of the adjustable flow channel is special, and a test verification device for simulating real working conditions is absent at present, so that an adjustable flow channel high-temperature dynamic sealing test device capable of simulating a real flow channel and a movement form is urgently needed.
Disclosure of Invention
In view of this, the invention provides an adjustable flow channel high-temperature dynamic seal direct connection test device, which can simulate the real working environment of an adjustable flow channel high-temperature dynamic seal, and further measure the gas leakage rate of a dynamic seal structure.
The technical scheme for realizing the invention is as follows:
a high-temperature dynamic seal direct connection test device for an adjustable flow passage comprises a spray pipe, the adjustable flow passage, a back pressure simulation device, a flow measurement device, an adjustable actuating mechanism and a temperature measurement device;
the nozzle outlet is fixedly connected with the adjustable flow passage inlet, the back pressure simulation device is fixedly connected with the adjustable flow passage outlet, the flow measurement device detects the flow of the gas leaked by the adjustable flow passage, the actuating connecting rod of the adjustable actuating mechanism can stretch into the adjustable flow passage, the height of an adjusting plate of the adjustable flow passage is adjusted, and the temperature measurement device measures the temperature of the gas leaked by the adjustable flow passage.
Furthermore, the spray pipe is connected with the adjustable flow passage through a flange, and the adjustable flow passage is connected with the back pressure simulation device through a flange.
Has the advantages that:
1. the test device can truly simulate the temperature and pressure conditions of two sides of the sealing surface (namely the adjusting plate) under the flight condition by introducing high-temperature gas and adjusting the counter pressure simulation device, is closer to the actual working state of the sealing structure, and has stronger engineering reference value.
2. The invention can adjust the height and the pressure of the flow passage according to the test requirements, and obtain the gas leakage rate under different conditions.
3. The measuring method of the testing device is simple, the gas leakage amount is obtained by measuring the temperature and the flow, the sealing element can be replaced, the testing device can be used for verifying the feasibility of different sealing materials and sealing structures, and the testing device has universality.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable flow channel.
FIG. 2 is a schematic structural diagram of the testing apparatus of the present invention.
FIG. 3 is a schematic view of the connection between the adjustable flow channel and the adjustable actuating mechanism according to the present invention.
The device comprises a nozzle 1, an adjustable flow channel 2, a back pressure simulation device 3, a flow measurement device 4, an adjustable actuating mechanism 5, a temperature measurement device 6, an adjusting plate 7 and a sealing structure 8.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides an adjustable flow channel high-temperature dynamic seal direct connection test device, which comprises a main body part of the test device, other matched supports, a transition stage and other parts, wherein the main body part comprises a spray pipe 1, an adjustable flow channel 2, a back pressure simulation device 3, a flow measurement device 4, an adjustable actuating mechanism 5 and a temperature measurement device 6; and forming a whole set of adjustable flow passage high-temperature dynamic seal test device, and connecting all the parts by adopting flanges and screws.
The outlet of the spray pipe 1 is fixedly connected with the inlet of the adjustable flow channel 2, the back pressure simulation device 3 is fixedly connected with the outlet of the adjustable flow channel 2, the flow measurement device 4 detects the flow of the gas leaked by the adjustable flow channel 2, the actuating connecting rod of the adjustable actuating mechanism 5 extends into the equipment cavity of the adjustable flow channel 2 and is hinged with the adjusting plate 7, as shown in fig. 3, the height of the adjusting plate 7 is adjusted, and the temperature measurement device 6 measures the temperature of the gas leaked by the adjustable flow channel 2.
The test working process comprises the following steps: the test bed is connected with the inlet of the spray pipe 1, high-temperature and high-pressure gas of the test bed flows through the spray pipe 1, and gas flow with pressure and Mach number required by the test is formed at the outlet of the spray pipe 1; airflow flows into the adjustable flow channel 2, and the adjustable actuating mechanism 5 is used for moving the adjusting plate 7 up and down and adjusting the height of the flow channel so as to simulate flow fields with different flow channel heights; the back pressure simulation device 5 obtains different pressure conditions by throttling the flow channel; finally, the air flow is introduced into the test stand tail chamber through the turn-around stage.
The leakage quantity measuring method comprises the following steps: the sealing structure 8 is arranged on the adjusting plate 7, the flow, the static pressure, the total pressure and the temperature of the leaked gas of the adjustable flow passage 2 are obtained through the flow measuring device 4 and the temperature measuring device 6, and then the gas leakage amount of the sealing structure 8 is obtained through calculation and analysis and used for evaluating the performance of the sealing structure 8. The sealing structure is replaceable and is used for verifying the sealing performance of different sealing materials.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A high-temperature dynamic seal direct connection test device for an adjustable flow passage is characterized by comprising a spray pipe, the adjustable flow passage, a back pressure simulation device, a flow measurement device, an adjustable actuating mechanism and a temperature measurement device;
the nozzle outlet is fixedly connected with the adjustable flow passage inlet, the back pressure simulation device is fixedly connected with the adjustable flow passage outlet, the flow measurement device detects the flow of the gas leaked by the adjustable flow passage, the actuating connecting rod of the adjustable actuating mechanism can stretch into the adjustable flow passage, the height of an adjusting plate of the adjustable flow passage is adjusted, and the temperature measurement device measures the temperature of the gas leaked by the adjustable flow passage.
2. The adjustable flow channel high-temperature dynamic seal direct connection test device as claimed in claim 1, wherein the spray pipe is connected with the adjustable flow channel through a flange, and the adjustable flow channel is connected with the back pressure simulation device through a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252721.0A CN111076875A (en) | 2019-12-09 | 2019-12-09 | Adjustable runner high temperature dynamic seal directly links test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252721.0A CN111076875A (en) | 2019-12-09 | 2019-12-09 | Adjustable runner high temperature dynamic seal directly links test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111076875A true CN111076875A (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911252721.0A Pending CN111076875A (en) | 2019-12-09 | 2019-12-09 | Adjustable runner high temperature dynamic seal directly links test device |
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| Country | Link |
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| CN (1) | CN111076875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444352A (en) * | 2020-11-10 | 2021-03-05 | 北京动力机械研究所 | Airtight and frictional force joint test device of high temperature dynamic seal |
| CN114636562A (en) * | 2022-03-14 | 2022-06-17 | 陕西慧矩热流科技有限公司 | High-temperature and high-pressure test device and test method for engine special-shaped section air inlet channel |
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| CN105092189A (en) * | 2015-09-18 | 2015-11-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Air flow passage sealing static test device |
| CN105784283A (en) * | 2016-04-28 | 2016-07-20 | 温州龙铸钢铁阀门有限公司 | Gate valve body water pressure testing method and gate valve body water pressure testing tool |
| CN106641302A (en) * | 2017-02-06 | 2017-05-10 | 中国航天空气动力技术研究院 | Precise and adjustable gas flow spray pipe |
| CN107024323A (en) * | 2015-11-26 | 2017-08-08 | 雅马哈精密科技株式会社 | Leak inspection device and leak test method |
| CN109186920A (en) * | 2018-09-06 | 2019-01-11 | 中国航天空气动力技术研究院 | A kind of ramjet engine air inlet restriction characteristic automation control wind tunnel test methods |
| WO2019204929A1 (en) * | 2018-04-24 | 2019-10-31 | RJ Maclean LP | Tank sampling system |
| CN110500199A (en) * | 2019-09-29 | 2019-11-26 | 北京动力机械研究所 | A kind of venturi and the adjustable two-dimensional nozzle regulating device of discharge area |
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2019
- 2019-12-09 CN CN201911252721.0A patent/CN111076875A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092189A (en) * | 2015-09-18 | 2015-11-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Air flow passage sealing static test device |
| CN107024323A (en) * | 2015-11-26 | 2017-08-08 | 雅马哈精密科技株式会社 | Leak inspection device and leak test method |
| CN105784283A (en) * | 2016-04-28 | 2016-07-20 | 温州龙铸钢铁阀门有限公司 | Gate valve body water pressure testing method and gate valve body water pressure testing tool |
| CN106641302A (en) * | 2017-02-06 | 2017-05-10 | 中国航天空气动力技术研究院 | Precise and adjustable gas flow spray pipe |
| WO2019204929A1 (en) * | 2018-04-24 | 2019-10-31 | RJ Maclean LP | Tank sampling system |
| CN109186920A (en) * | 2018-09-06 | 2019-01-11 | 中国航天空气动力技术研究院 | A kind of ramjet engine air inlet restriction characteristic automation control wind tunnel test methods |
| CN110500199A (en) * | 2019-09-29 | 2019-11-26 | 北京动力机械研究所 | A kind of venturi and the adjustable two-dimensional nozzle regulating device of discharge area |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444352A (en) * | 2020-11-10 | 2021-03-05 | 北京动力机械研究所 | Airtight and frictional force joint test device of high temperature dynamic seal |
| CN112444352B (en) * | 2020-11-10 | 2022-08-09 | 北京动力机械研究所 | Airtight and frictional force combined testing device for high-temperature dynamic seal |
| CN114636562A (en) * | 2022-03-14 | 2022-06-17 | 陕西慧矩热流科技有限公司 | High-temperature and high-pressure test device and test method for engine special-shaped section air inlet channel |
| CN114636562B (en) * | 2022-03-14 | 2024-05-10 | 陕西慧矩热流科技有限公司 | High-temperature and high-pressure test device and test method for special-shaped cross section air inlet channel of engine |
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Application publication date: 20200428 |
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