CN208736448U - A kind of engine blade tip high-temperature sensor performance verification system - Google Patents
A kind of engine blade tip high-temperature sensor performance verification system Download PDFInfo
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- CN208736448U CN208736448U CN201821490318.2U CN201821490318U CN208736448U CN 208736448 U CN208736448 U CN 208736448U CN 201821490318 U CN201821490318 U CN 201821490318U CN 208736448 U CN208736448 U CN 208736448U
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Abstract
The utility model discloses a kind of engine blade tip high-temperature sensor performance verification system, including Ventilation Control module, electrical parameter measuring module, temperature-measuring module, data processing module and high-temperature heating equipment, the high-temperature heating equipment includes through-hole, burner hearth and insulating layer, variation of the temperature control at 25-1600 DEG C in burner hearth, Analogue probe surface operating ambient temperature, blade tip sensor to be measured is placed in the burner hearth, blade tip sensor probe end two sides, thermocouple is equipped at probe and blade tip sensor wire, the thermocouple is electrically connected with electrical parameter measuring module and data processing module, electrical parameter measuring module and data processing module are connect with data processing module respectively, the escape pipe being connected with the Ventilation Control module and air inlet pipe are additionally provided in burner hearth, for simulating engine under actual installation environment Air-flow environment between casing wall and insulating layer.
Description
Technical field
The utility model belongs to sensor Technology of Precision Measurement field more particularly to a kind of engine blade tip high-temperature sensor
Performance verification system.
Background technique
Industry spot high speed rotor blade dynamic parameter is to the operational safety and work for ensureing Diagnosing System for Oil Pump
Efficiency is most important.Blade dynamic parameter such as blade vibration, tip clearance etc. can be to judge rotor operation state and fault signature
Intuitive foundation is provided, for improving Diagnosing System for Oil Pump Development Level, verifying design performance parameter has actual theory and answers
With value.Currently, the aero-engines such as GE, P&W, Rolls-Royce manufacturing enterprise and NASA, Federal Aviation management board
(FAA), the huge resource of the research institutions such as USN's Airborne Operations Center (NAWC) investment is dedicated to rotor blade dynamic parameter
Application study.
Based on this application request, produced blade vibration (blade tip vibration) for detecting blade dynamic parameter,
The non-contact sensor of tip clearance, is referred to as blade tip sensor, and blade tip sensor includes but is not limited to capacitance sensor, electric whirlpool
Flow sensor and fibre optical sensor.Based on non-touching measurement principles, blade tip sensor is mounted on turbine casing, is sensed
Device probe is directly radially directed at the inswept position of rotor blade tip, according to sensor measurement principle, can obtain blade vibration in real time
The data such as dynamic, tip clearance.This kind of non-contact measurement method is easy to be economical, is the hair of engine rotor blade online measuring technique
Exhibition trend.
Simultaneously as blade works under hot environment in industry spot, surface temperature of probe variation range from room temperature to
1600 DEG C, probe rear end temperature is influenced by coolant flow channel, can be controlled in room temperature to 500 DEG C, therefore for grade (highest 650 of calming the anger
DEG C), turbine grade blade (1600 DEG C of highest), blade tip sensor will have certain heat-resisting ability, guarantee it in above-mentioned high temperature
Operation duration is stable and accurate under environment.To solve the high-temperature behavior of current blade tip sensor in formal nothing before being used for industry spot
The significant problem that method is verified, it is ensured that it being capable of long-term, stable, accurate, efficient operation in industry spot.It carries out in a pre-installation
Blade tip high-temperature sensor performance verification is necessary.There is presently no specially test blade tip high-temperature sensor performance
The device and method of card.
Utility model content
The purpose of this utility model is to overcome deficiencies in the prior art, and it is high to provide a kind of engine blade tip sensor
Warm nature is able to verify that system, and performance when being worked by the utility model energy precise verification blade tip high-temperature sensor solves current leaf
The significant problem that the high-temperature behavior of sharp sensor can not be verified before formally for industry spot is subsequent industry spot
Using reliable basis is provided, reduction is done over again and is scrapped, and production cost is reduced, and improves working efficiency.
The purpose of this utility model is achieved through the following technical solutions:
A kind of engine blade tip high-temperature sensor performance verification system, including Ventilation Control module, electrical parameter measuring module,
Temperature-measuring module, data processing module and high-temperature heating equipment, the high-temperature heating equipment include through-hole, burner hearth and heat preservation
Layer, variation of the temperature control at 25-1600 DEG C in burner hearth, Analogue probe surface operating ambient temperature, blade tip sensor to be measured
It is placed in the burner hearth, is equipped with thermocouple at blade tip sensor probe end two sides, probe and blade tip sensor wire, institute
It states thermocouple to be electrically connected with electrical parameter measuring module and data processing module, electrical parameter measuring module and data processing module difference
It is connect with data processing module, the escape pipe being connected with the Ventilation Control module and air inlet pipe is additionally provided in burner hearth, be used for mould
Air-flow environment under quasi- actual installation environment between engine crankcase wall and insulating layer, air inlet pipe can control the heat into 25-500 DEG C
Air, escape pipe are responsible for exhaust, the environment temperature near cable can be driven to be maintained at setting value 25-500 sensor in this way
Within the scope of DEG C, to simulate all types of industrial environments.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
1. can verify that the high-temperature behavior of blade tip sensor by the utility model, determine whether transducer dwell compensation meets
Work requirements；
2. the high-temperature behavior that the utility model solves blade tip sensor can not be tested before formally for industry spot
The significant problem of card, and ensure that blade tip sensor being capable of long-term, stable, accurate, efficient operation in industry spot.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model high-temperature behavior verifying system.
Fig. 2 is the structural scheme of mechanism of high-temperature heating equipment.
Fig. 3 is the experimental state schematic diagram in high-temperature heating equipment burner hearth.
Fig. 4 is the connection relationship diagram of each module in the utility model high-temperature behavior verifying system.
Fig. 5 is the flow chart of the utility model high-temperature behavior verification method.
Fig. 6 is blade tip working sensor flow diagram, is the composition of blade tip sensor on the left of flow chart, right side is each group
At the corresponding function in part.
Appended drawing reference: 1- Ventilation Control module, 2- electrical parameter measuring module, 3- temperature-measuring module, 4- data processing mould
Block, 5- high-temperature heating equipment, 6- through-hole, 7- burner hearth, 8- insulating layer, 9- thermocouple, 10- escape pipe, 11- air inlet pipe, 12- sensing
Device cable, 13- blade tip sensor, 14- fixture
Specific embodiment
1 to 6 the utility model will be further described with reference to the accompanying drawing.
The utility model protects a kind of engine blade tip high-temperature sensor performance verification system, including Ventilation Control module 1,
Electrical parameter measuring module 2, temperature-measuring module 3, data processing module 4 and high-temperature heating equipment 5, high-temperature heating equipment 5 include
Through-hole 6, burner hearth 7 and insulating layer 8, insulating layer 8 ensure burner hearth internal temperature energy stable for extended periods of time, simulate in industry spot casing
Portion's temperature environment, variation of the temperature control at 25-1600 DEG C in burner hearth；Blade tip sensor 13 to be measured is placed in the burner hearth 7
It is interior, it is fixed by fixture 14, is equipped with thermocouple 9 at blade tip sensor probe end two sides, probe and blade tip sensor wire 12,
For the heat indicator of sensor different parts, thermocouple 9 is electrically connected with electrical parameter measuring module 2 and data processing module 4, electricity
Parameters measurement module 2 and data processing module 4 are connect with data processing module 4 respectively, are additionally provided in burner hearth 7 and Ventilation Control mould
The connected escape pipe 10 of block 1 and air inlet pipe 11, are simulated under actual installation environment between engine crankcase wall and insulating layer with this
Air-flow environment, air inlet pipe can be set into hot-air, temperature, and 25 to 500 degrees Celsius of temperature range, escape pipe is responsible for exhaust, in this way
Sensor can be driven the environment temperature simulation actual industrial site environment near cable.Engine blade tip high-temperature sensor
It is able to verify that method is as follows:
The first step carries out the warm emulation of blade tip sensor finite element height.
According to the structural material of high temperature resistant blade tip sensor structure and selection, in conjunction with pressure turbine internal high temperature environment,
The warm emulation of blade tip sensor finite element height is carried out, is determined under pressure turbine high-temperature severe environment, sensor probe is whole
Temperature Distribution.Referring to FEM Numerical Simulation, determine that the mechanical structure deformation extent of blade tip sensor and sensor probe are whole
Whether temperature value is in the selection of material operating temperature hereinafter, to by finite element simulation, primarily determines and meets test environment
The sensor mechanical structure of demand and available sensor structure material.
Second step, using engine blade tip high-temperature sensor performance verification system simulation industrial environment to the resistance to of development
High temperature blade tip sensor is tested.
Using high-temperature experimental furnace as high-temperature heating equipment, blade tip sensor to be measured is put into vertically in the through-hole of high temperature furnace,
Place it in the intersection position of through-hole and burner hearth；Thermocouple is placed on each position to be measured, specific location such as Fig. 3 institute
Show, as the heat indicator of sensor different parts, carries out temperature real time monitoring；Air inlet pipe and snorkel are put into logical
Kong Zhong is connected with Ventilation Control module, and the parameter of Ventilation Control module is arranged to simulate the air-flow between casing wall and insulating layer
Environment, air inlet pipe are responsible for exhaust into 500 DEG C or so of hot-air, escape pipe, sensor can be driven near cable in this way
Environment temperature is maintained at 500 DEG C or so, to simulate industrial environment；The signal conditioning module of blade tip sensor and electricity are joined
Number measurement module is connected, other signals is made to be converted into electric signal；By temperature-measuring module, electrical parameter measuring module respectively with data
Processing module is connected, to obtain the real-time output of blade tip sensor.
Specific experiment operation is as follows:
1. using the first step operate obtained in blade tip sensor bulk temperature distribution results as high temperature experimental temperature foundation,
It opens high temperature furnace to be heated, and is passed through the hot-air of preset temperature by air inlet pipe, using thermocouple monitoring temperature data as base
Standard is overregulated, and it is that experimental temperature is surveyed that it is consistent with finite element simulation Temperature Distribution, which to be heated to the distribution of sensor probe bulk temperature,
Pilot.
2. variation will be exported due to caused by temperature change to obtain by data processing module, so as to subsequent analysis processing
It uses.It is operated by specific experiment, it is believed that the steady temperature field in high temperature furnace can be equivalent between pressure turbine blade tip at this time
Hot environment at gap indirectly simulates the hot environment of high temperature resistant capacitance sensor real work by high temperature furnace.
Third step evaluates the working performance of blade tip sensor.
Blade tip sensor measurement signal is amplified accordingly by the signal conditioning module of itself, is disappeared and tremble and filter, and is turned
It changes electric signal into and is passed in electrical parameter measuring module and temperature-measuring module and carry out reading data；Finally in data processing module
Data are arranged, compared and are analyzed, the working performance of verifying blade tip sensor in the high temperature environment evaluates it in high temperature ring
Ability to work in border.
The utility model is not limited to embodiments described above.Above the description of specific embodiment is intended to describe
With illustrate the technical solution of the utility model, the above mentioned embodiment is only schematical, is not restrictive.?
In the case of not departing from the utility model aims and scope of the claimed protection, those skilled in the art are practical at this
The specific transformation of many forms can be also made under novel enlightenment, these are belonged within the protection scope of the utility model.
Claims (2)
1. a kind of engine blade tip high-temperature sensor performance verification system, which is characterized in that including Ventilation Control module, electrical parameter
Measurement module, temperature-measuring module, data processing module and high-temperature heating equipment, the high-temperature heating equipment include through-hole, furnace
Thorax and insulating layer, temperature-controllable range is 25-1600 DEG C in burner hearth, to Analogue probe surface operating ambient temperature, leaf to be measured
Sharp sensor is placed in the burner hearth, is equipped at blade tip sensor probe end two sides, probe and blade tip sensor wire
Thermocouple, the thermocouple are electrically connected with electrical parameter measuring module and data processing module, at electrical parameter measuring module and data
Reason module connect respectively with data processing module, be additionally provided in the burner hearth escape pipe being connected with the Ventilation Control module and
Air inlet pipe, for simulating the air-flow environment under actual installation environment between engine crankcase wall and insulating layer.
2. a kind of engine blade tip high-temperature sensor performance verification system according to claim 1, which is characterized in that it is described into
The controllable hot air temperature range into it of tracheae is 25-500 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821490318.2U CN208736448U (en) | 2018-09-12 | 2018-09-12 | A kind of engine blade tip high-temperature sensor performance verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821490318.2U CN208736448U (en) | 2018-09-12 | 2018-09-12 | A kind of engine blade tip high-temperature sensor performance verification system |
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| Publication Number | Publication Date |
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| CN208736448U true CN208736448U (en) | 2019-04-12 |
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ID=66034507
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| CN201821490318.2U Active CN208736448U (en) | 2018-09-12 | 2018-09-12 | A kind of engine blade tip high-temperature sensor performance verification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865876A (en) * | 2021-08-24 | 2021-12-31 | 东南大学 | Turbine detection system in high-temperature environment |
-
2018
- 2018-09-12 CN CN201821490318.2U patent/CN208736448U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865876A (en) * | 2021-08-24 | 2021-12-31 | 东南大学 | Turbine detection system in high-temperature environment |
| CN113865876B (en) * | 2021-08-24 | 2023-11-24 | 东南大学 | Detection system of turbine in high temperature environment |
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