CN111289254A - Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method - Google Patents
Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method Download PDFInfo
- Publication number
- CN111289254A CN111289254A CN202010184226.7A CN202010184226A CN111289254A CN 111289254 A CN111289254 A CN 111289254A CN 202010184226 A CN202010184226 A CN 202010184226A CN 111289254 A CN111289254 A CN 111289254A
- Authority
- CN
- China
- Prior art keywords
- engine
- afterburner
- flow resistance
- test
- section
- 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.)
- Granted
Links
Images
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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Abstract
The invention relates to the technical field of engine afterburner tests, in particular to an afterburner flow resistance test system with an engine as an air source and a method thereof, which are used for solving the problems of high cost and high risk in developing afterburner part flow resistance tests in the prior art. The device comprises a control system, wherein the control system is electrically connected with a test system, an adjustable tail cone device and a control object, the control object comprises an engine, an afterburner and an adjusting tail cone, the engine is sequentially connected with a circular torque switching section and a test section, a temperature and pressure measuring system is arranged on the test section, the test section is connected with the adjusting tail cone, and the adjustable tail cone device is electrically connected with the adjusting tail cone. The engine is used as an air source, the temperature and pressure environment required by the afterburner inlet is provided in a simulated mode, the afterburner inlet flow resistance verification test is carried out, the whole system is simple, and therefore the cost and the risk of the afterburner part flow resistance test can be reduced.
Description
Technical Field
The invention relates to the technical field of engine afterburner tests, in particular to an afterburner flow resistance test system with an engine as an air source and a method thereof.
Background
The afterburner injects oil, ignites and burns to the gas or the air current behind the fan on the afterburner so as to improve the air current temperature and be used for increasing the part of the engine thrust in a short time, and in order to verify the reasonability of the afterburner design, the flow resistance verification test of the afterburner needs to be carried out.
In the prior art, the flow resistance verification test method for the afterburner mainly focuses on afterburning ignition and engine complete machine test, so that the cost and the risk for independently carrying out the flow resistance test of the afterburner parts are high. Therefore, there is a strong need for a less costly and less risky testing system and method for conducting afterburner component flow resistance tests.
Disclosure of Invention
Based on the problems, the invention provides a flow resistance test system of an afterburner with an engine as an air source and a method thereof, which are used for solving the problems of high cost and high risk in developing a flow resistance test of afterburner parts in the prior art. The engine is used as an air source, the temperature and pressure environment required by the afterburner inlet is provided in a simulated mode, the afterburner inlet flow resistance verification test is carried out, the whole system is simple, and therefore the cost and the risk of the afterburner part flow resistance test can be reduced.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides an afterburning chamber flow resistance test system of engine as air supply, includes control system, control system electric connection has test system, adjustable tail cone device and control object, the control object includes engine, afterburning chamber and adjusts the tail cone, the engine has connected gradually circle turning moment switching section and test section, be equipped with warm-pressing measurement system on the test section, the test section is connected with the regulation tail cone, adjustable tail cone device and regulation tail cone electric connection.
The working principle is as follows: the tail cone position is adjusted and adjusted to an initial position by using a controller, a control instruction is issued to the controller by using a testing system, the controller converts the control instruction into an actuating mechanism signal to an engine, the engine is started to a slow-speed vehicle rotating speed, fuel gas with certain temperature, pressure and oxygen concentration is provided for a test section under the condition that the engine serves as a stable working air source, corresponding pressure loss is calculated after the temperature and the pressure required by the test section are measured by a temperature and pressure system, and therefore the purpose of flow resistance test verification of an afterburner is achieved, the whole system is simple, and the cost and the risk of a flow resistance test of a combustor component can be reduced.
As a preferred mode, the test section comprises a diffuser, a flame stabilizer and a boosting cylinder body which are connected with each other, the diffuser is connected with the circular torque switching section, and the boosting cylinder body is connected with the adjusting tail cone.
Preferably, the control system is a modular unit controller.
Preferably, the engine is a micro turbojet engine.
As a preferred mode, the warm-pressing measuring system comprises a total temperature probe and a total pressure probe, the contact surface of the diffuser and the circular torque transfer section is a B-B section, the force application cylinder body is provided with a D-D section, the D-D section and the B-B section are respectively provided with the total temperature probe and the total pressure probe, the total temperature probe is electrically connected with a temperature signal processor, the total pressure probe is sequentially and electrically connected with a pressure sensor and a pressure signal processor, and the pressure signal processor and the temperature signal processor are respectively and electrically connected with an industrial personal computer.
In a preferred mode, the total temperature probe and the total pressure probe both have a width of 8 mm and a length of 30 mm.
As a preferable mode, the test bench further comprises a test bench, and the engine and the stressing cylinder are both arranged on the test bench.
A flow resistance test method of an afterburner with an engine as an air source is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: under the condition that the flame stabilizer is not installed, the position of the tail cone is adjusted to an initial position by using a controller;
step two: starting the engine to a slow vehicle rotating speed, issuing a control instruction to an engine controller by using a test system, and converting the control instruction into an actuating mechanism signal to the engine by the controller; after the automobile is started to slow for a period of time by the controller, the automobile is accelerated to the working rotating speed meeting the inlet environmental conditions of the afterburner;
step three: the test system and the controller acquire the total temperature and the total pressure of the B-B section and the D-D section, and recover the coefficient according to the total pressure
Calculating the flow resistance loss of the diffuser; wherein the cold state total pressure recovery coefficient sigma is more than or equal to 0.95, and the hot state condition total pressure recovery coefficient sigma is more than or equal to 0.9;
step four: and (5) installing a flame stabilizer, repeating the steps from the first step to the third step, and calculating the flow resistance loss of the flame stabilizer.
The invention has the beneficial effects that: the engine is used as an air source, the temperature and pressure environment required by the afterburner inlet is provided in a simulated mode, the afterburner inlet flow resistance verification test is carried out, the whole system is simple, and therefore the cost and the risk of the afterburner part flow resistance test can be reduced.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a control schematic of the present invention;
FIG. 3 is a control schematic diagram of the temperature and pressure measurement system of the present invention;
reference numerals: the test bench comprises a test bench 1, an engine 2, a 3-circle torque transfer section, a 4B-B section, a 5 diffuser, a 6 flame stabilizer, a 7 force application cylinder, a 8D-D section, a 9 adjustment tail cone, a 10 force application combustion chamber, a 11 control system, a 12 test system, a 13 adjustable tail cone device, a 14 total temperature probe, a 15 total pressure probe, a 16 temperature signal processor, a 17 pressure sensor, a 18 pressure signal processor and a 19 industrial personal computer.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and the following examples.
Example 1:
as shown in fig. 1-2, a flow resistance test system of an afterburner with an engine as an air source comprises a control system 11, wherein the control system 11 is electrically connected with a test system 12, an adjustable tail cone device 13 and a control object, the control object comprises the engine 2, an afterburner 10 and an adjustable tail cone 9, the engine 2 is sequentially connected with a circular torque switching section 3 and a test section, a temperature and pressure measuring system is arranged on the test section, the test section is connected with the adjustable tail cone 9, and the adjustable tail cone device 13 is electrically connected with the adjustable tail cone 9.
The working principle is as follows: the position of the tail cone 9 is adjusted to an initial position by using a controller, a control instruction is issued to the controller by using the testing system 12, the controller converts the control instruction into an actuating mechanism signal and sends the actuating mechanism signal to the engine 2, the engine 2 is started to a slow speed, fuel gas with certain temperature, pressure and oxygen concentration is provided for a test section under the condition that the engine 2 serves as a stable working air source, corresponding pressure loss is calculated after the temperature and the pressure required by the test section are measured by the temperature and pressure system, and therefore the purpose of verifying the flow resistance test of the afterburner 10 is achieved, the whole system is simple, and the cost and the risk of the flow resistance test of the combustor parts can be reduced.
Example 2:
as shown in fig. 1-3, on the basis of the above embodiments, this embodiment provides a more specific preferred structure of the system, that is, the test section includes a diffuser 5, a flame stabilizer 6 and a boost cylinder 7 which are connected with each other, the diffuser 5 is connected with the circular torque adapter section 3, and the boost cylinder 7 is connected with the adjusting tail cone 9; the temperature and pressure measuring system comprises a total temperature probe 14 and a total pressure probe 15, the contact surface of the diffuser 5 and the circular torque transfer section 3 is a B-B section 4, the force application cylinder 7 is provided with a D-D section 8, the D-D section 8 and the B-B section 4 are respectively provided with the total temperature probe 14 and the total pressure probe 15, the total temperature probe 14 is electrically connected with a temperature signal processor 16, the total pressure probe 15 is sequentially electrically connected with a pressure sensor 17 and a pressure signal processor 18, and the pressure signal processor 18 and the temperature signal processor 16 are respectively electrically connected with an industrial personal computer 19.
In this embodiment: the control system 11 is a modular unit controller, the engine 2 is a micro turbojet engine 2, the total outlet temperature of the engine 2 is 1011.8K at 97.5% and the total outlet pressure is 182.7KPa, the position of a tail cone is adjusted to an initial position by using a controller under the condition that a flame stabilizer 6 is not installed, then the engine 2 is started to a slow vehicle rotating speed, a control instruction is issued to the controller of the engine 2 by using the test system 12, and the controller converts the control instruction into an execution mechanism signal to the engine 2; after the vehicle is started to slow for a period of time by the controller, the vehicle is accelerated to the working rotating speed meeting the inlet environmental conditions of the afterburner 10. Then the measurement and control system acquires and obtains the total temperature and the total pressure of a B-B section 4 and a D-D section 8, wherein the flow passage area of the B-B section 4 is 8400mm2(ii) a And calculating the flow resistance loss of the diffuser 5 according to the total pressure recovery coefficient, wherein the numerator in the formula is the total outlet pressure of the corresponding section, the denominator is the total inlet pressure of the corresponding section, the cold state total pressure recovery coefficient is not less than 0.95, and the hot state condition total pressure recovery coefficient is not less than 0.9.
The total temperature probe 14 measures the temperatures of the B-B section 4 and the D-D section 8, then corresponding information is transmitted to the temperature signal processor 16, and the temperature signal processor 16 transmits the information to the industrial personal computer 19; the total pressure probe 15 measures the pressures of the B-B section 4 and the D-D section 8 and then transmits corresponding information to the pressure sensor 17, the pressure sensor 17 transmits the information to the pressure signal processor 18, and the pressure signal processor 18 transmits the information to the industrial personal computer 19 to obtain corresponding temperature and pressure data. The flame holder 6 is then installed and the first to third steps are repeated to calculate the loss of flow resistance of the flame holder 6.
The rest is the same as example 1, and therefore, will not be described herein.
Example 3:
as shown in fig. 1-3, a method for testing the flow resistance of an afterburner with an engine as an air source comprises the following steps:
the method comprises the following steps: under the condition that the flame stabilizer 6 is not installed, the position of the tail cone is adjusted to an initial position by using a controller;
step two: starting the engine 2 to a slow vehicle rotating speed, issuing a control instruction to a controller of the engine 2 by using the test system 12, and converting the control instruction into an actuating mechanism signal by the controller to be transmitted to the engine 2; after the automobile is started to slow for a period of time by the controller, the automobile is accelerated to the working rotating speed meeting the inlet environmental condition of the afterburner 10;
step three: the test system 12 and the controller acquire the total temperature and the total pressure of the B-B section 4 and the D-D section 8, and the flow resistance loss of the diffuser 5 is calculated according to the total pressure recovery coefficient; wherein the cold state total pressure recovery coefficient is more than or equal to 0.95, and the hot state condition total pressure recovery coefficient is more than or equal to 0.9;
step four: and (5) installing the flame stabilizer 6, repeating the steps from the first step to the third step, and calculating the flow resistance loss of the flame stabilizer 6.
In this embodiment: the steps of the method will be described in detail by taking the 80kgf micro turbojet engine 2 as an example. The method comprises the following steps: the first step is as follows: under the condition of not installing the flame stabilizer 6, the position of the tail cone is adjusted to 7688.4mm by using a controller2Starting the micro engine 2 until the rotating speed of the slow vehicle reaches 20000r/min, issuing a control instruction to the controller of the engine 2 by using the test system 12, and converting the control instruction into an actuating mechanism signal by the controller to the micro engine 2; starting to 20000r/min through a controller starting control rule;
the second step is that: the engine 2 is decelerated and stabilized to be accelerated to the working rotating speed which meets the environmental condition of the inlet of the combustion chamber, namely 60000r/min, a set rotating speed control instruction which is the working rotating speed of the afterburner 10 is issued to the controller by using the test system 12, and the micro engine 2 is stabilized to be operated to the working rotating speed, namely 60000r/min through the closed-loop control rule of the rotating speed of the controller;
the third step: the measurement and control system acquires the total temperature and the total pressure of the B-B section 4 and the D-D section 8; and calculating the flow resistance loss of the diffuser 5 according to the total pressure recovery coefficient. The cold state total pressure recovery coefficient is more than or equal to 0.95, and the hot state condition total pressure recovery coefficient is more than or equal to 0.9.
The fourth step: the flame holder 6 is installed and the first to third steps are repeated to calculate the loss of flow resistance for the flame holder 6 solution.
Through the above test steps, the whole system is simple, so that the cost and the risk of the flow resistance test of the combustor components can be reduced.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only for the purpose of clearly illustrating the verification process of the invention and are not intended to limit the scope of the invention, which is defined by the claims, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides an afterburner flow resistance test system of engine as air supply which characterized in that: including control system (11), control system (11) electric connection has test system (12), adjustable caudal vertebra device (13) and control object, the control object includes engine (2), afterburner (10) and adjusts caudal vertebra (9), engine (2) has connected gradually circle torque changeover portion (3) and test segment, be equipped with warm-pressing measurement system on the test segment, the test segment is connected with regulation caudal vertebra (9), adjustable caudal vertebra device (13) and regulation caudal vertebra (9) electric connection.
2. The afterburner flow resistance testing system with an engine as an air source of claim 1, wherein: the test section comprises a diffuser (5), a flame stabilizer (6) and a force application cylinder body (7) which are connected with each other, the diffuser (5) is connected with the circular torque switching section (3), and the force application cylinder body (7) is connected with an adjusting tail cone (9).
3. The afterburner flow resistance testing system with an engine as an air source of claim 2, wherein: the control system (11) is a modular unit controller.
4. The afterburner flow resistance testing system with an engine as an air source of claim 2, wherein: the engine (2) is a micro turbojet engine (2).
5. An afterburner flow resistance testing system with an engine as an air source according to any one of claims 2-4, wherein: temperature and pressure measurement system is including total warm probe (14) and total pressure probe (15), diffuser (5) are B-B cross-section (4) with the contact surface of circle torque changeover section (3), be equipped with D-D cross-section (8) on afterburning barrel (7), equally divide on D-D cross-section (8) and B-B cross-section (4) and do not be equipped with total warm probe (14) and total pressure probe (15), total warm probe (14) electric connection has temperature signal processor (16), total pressure probe (15) electric connection has pressure sensor (17) and pressure signal processor (18) in proper order, pressure signal processor (18) and temperature signal processor (16) electric connection have industrial computer (19) respectively.
6. The afterburner flow resistance testing system with an engine as an air source of claim 5, wherein: the total temperature probe (14) and the total pressure probe (15) are both 8 mm in width and 30 mm in length.
7. The afterburner flow resistance testing system with an engine as an air source of claim 5, wherein: the test bed is characterized by further comprising a test bed frame (1), wherein the engine (2) and the stress application cylinder (7) are both arranged on the test bed frame (1).
8. A flow resistance test method of an afterburner with an engine as an air source is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: under the condition that the flame stabilizer (6) is not installed, the position of the tail cone is adjusted to an initial position by using a controller;
step two: starting the engine (2) to a slow vehicle rotating speed, issuing a control instruction to an engine (2) controller by using a test system (12), and converting the control instruction into an actuating mechanism signal to the engine (2) by the controller; after the automobile is started to slow for a period of time by the controller, the automobile is accelerated to the working rotating speed meeting the inlet environmental condition of the afterburner (10);
step three: the test system (12) and the controller acquire the total temperature and the total pressure of the B-B section (4) and the D-D section (8), and the flow resistance loss of the diffuser (5) is calculated according to the total pressure recovery coefficient; wherein the cold state total pressure recovery coefficient is more than or equal to 0.95, and the hot state condition total pressure recovery coefficient is more than or equal to 0.9;
step four: and (5) installing the flame stabilizer (6), repeating the steps from the first step to the third step, and calculating the flow resistance loss of the flame stabilizer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010184226.7A CN111289254B (en) | 2020-03-16 | 2020-03-16 | Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010184226.7A CN111289254B (en) | 2020-03-16 | 2020-03-16 | Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111289254A true CN111289254A (en) | 2020-06-16 |
| CN111289254B CN111289254B (en) | 2022-02-11 |
Family
ID=71020851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010184226.7A Active CN111289254B (en) | 2020-03-16 | 2020-03-16 | Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111289254B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU862679C (en) * | 1980-01-03 | 1994-09-15 | Акционерное общество "Авиадвигатель" | Method of testing controlled nozzle of aircraft gas-turbine engine |
| RU2247062C1 (en) * | 2003-06-18 | 2005-02-27 | Центр внедрения новых технологий Центрального института авиационного моторостроения им. П.И. Баранова | Method of replacement of front case of gas-turbine engine fan module |
| CN102967465A (en) * | 2012-12-07 | 2013-03-13 | 北京动力机械研究所 | Fuel chamber virtual test method and system |
| JP2015071981A (en) * | 2013-10-03 | 2015-04-16 | 株式会社Ihi | Rocket engine burning test device |
| CN106769059A (en) * | 2016-11-30 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of after-burner nozzle area regulation and measurement apparatus |
| CN109781421A (en) * | 2019-01-16 | 2019-05-21 | 中国航发沈阳发动机研究所 | A kind of rear measurement group section for loopful combustion chamber ignition performance test |
-
2020
- 2020-03-16 CN CN202010184226.7A patent/CN111289254B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU862679C (en) * | 1980-01-03 | 1994-09-15 | Акционерное общество "Авиадвигатель" | Method of testing controlled nozzle of aircraft gas-turbine engine |
| RU2247062C1 (en) * | 2003-06-18 | 2005-02-27 | Центр внедрения новых технологий Центрального института авиационного моторостроения им. П.И. Баранова | Method of replacement of front case of gas-turbine engine fan module |
| CN102967465A (en) * | 2012-12-07 | 2013-03-13 | 北京动力机械研究所 | Fuel chamber virtual test method and system |
| JP2015071981A (en) * | 2013-10-03 | 2015-04-16 | 株式会社Ihi | Rocket engine burning test device |
| CN106769059A (en) * | 2016-11-30 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of after-burner nozzle area regulation and measurement apparatus |
| CN109781421A (en) * | 2019-01-16 | 2019-05-21 | 中国航发沈阳发动机研究所 | A kind of rear measurement group section for loopful combustion chamber ignition performance test |
Non-Patent Citations (2)
| Title |
|---|
| 严传君等: "《燃烧学》", 30 September 2015, 西北工业大学出版社 * |
| 朱赟等: "加力燃烧室典型结构件流阻特性研究", 《航空发动机》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111289254B (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907043B (en) | High-frequency combustion instability coverall process simulation test automatic regulating system and method | |
| JP5025060B2 (en) | Method and apparatus for adjusting the air-fuel ratio of a burner | |
| CN101182926B (en) | Stove-fuel flow online control device and method thereof | |
| CN201000397Y (en) | High-temperature steam and normal temperature gas and water three-phase medium safety valve calibration stand | |
| CN104460790A (en) | Dynamic aviation thermal power testing system and rapid temperature and pressure control method | |
| CN101281153B (en) | Air/fuel ratio oxygen sensor performance measuring system | |
| CN110836538B (en) | Load test method of gas water heater | |
| CN214309492U (en) | Fuel system of tester of engine combustion chamber | |
| CN107063697B (en) | Air heating system and combustion chamber test bed system | |
| CN112984550A (en) | Electromagnetic diagnosis and regulation system and method for combustion instability | |
| CN111289254B (en) | Afterburner flow resistance test system with engine as air source and afterburner flow resistance test method | |
| CN113670379A (en) | Tail gas pollutant emission simulation device and method | |
| CN206638648U (en) | Lambda sensor functional test desk | |
| CN110160792B (en) | Dynamic simulation test method for power system | |
| CN201196631Y (en) | Performance measurement system for air/fuel ratio oxygen sensor | |
| CN209027800U (en) | A kind of engine testsand | |
| CN210863158U (en) | Test device for measuring resistance loss of pipeline of starting system of aircraft engine | |
| JP4256767B2 (en) | Combustion control method and apparatus for gas engine | |
| KR101296395B1 (en) | Performance and durability experiment of engine exhaust system | |
| CN109141906A (en) | A kind of engine testsand | |
| CN210802753U (en) | Engine test bed air inlet thrust measuring device | |
| CN203365362U (en) | Combustion chamber device used for testing dynamic combustion performance of solid propellant by utilizing multiple thermocouples | |
| CN114689649B (en) | Device and method for testing fireproof performance of gas pressure regulating box | |
| CN215984619U (en) | Aircraft fire alarm sensor detection device | |
| CN201173868Y (en) | Vehicular air oil heater test device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |