CN202180935U - Comprehensive test bed for pneumatic accessories of airplanes - Google Patents
Comprehensive test bed for pneumatic accessories of airplanes Download PDFInfo
- Publication number
- CN202180935U CN202180935U CN2011202229587U CN201120222958U CN202180935U CN 202180935 U CN202180935 U CN 202180935U CN 2011202229587 U CN2011202229587 U CN 2011202229587U CN 201120222958 U CN201120222958 U CN 201120222958U CN 202180935 U CN202180935 U CN 202180935U
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- low pressure
- pressure gas
- pressure
- pneumatic accessories
- air circuit
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Abstract
The utility model discloses a comprehensive test bed for pneumatic accessories of airplanes. The comprehensive test bed belongs to the field of test equipment for the pneumatic accessories of the airplanes and comprises an air supplying system, a medium pressure air circuit and a low pressure air circuit, wherein the medium pressure air circuit and the low pressure air circuit are communicated with a test zone through respective flow gauges and pressure regulating valves, the low pressure air circuit is provided with an electrical heating group which can heat to different temperatures, and a computer for collecting temperature signals or pressure signals of the medium pressure air circuit and the low pressure air circuit is arranged on the test zone. The comprehensive test bed for the pneumatic accessories of the airplanes is reasonable in layout; the direction of the pipeline and the differences of different tested accessories are fully considered, the medium pressure air circuit and the low pressure air circuit are distinguished so as to realize the full use of the air source; and the comprehensive test bed can be used for repairing various pneumatic accessories of the airplanes, so that the cost is saved, and the working efficiency is improved.
Description
Technical field
The utility model relates to a kind of simulation test device of aircraft pneumatic accessories, relates in particular to a kind of aircraft pneumatic accessories multi-function test stand.
Background technology
The pneumatic accessories maintenance occupies and consequence in the aircraft accessory maintenance; The aircraft pneumatic accessories mainly comprises: pressure turn-offs valve, pressure control valve, flow control valve, pressure shutoff valve, air cycle machine, air turbine starter, anti-icing valve, therefore mainly comprises the test of air cycle machine, air radiator and valve class to the maintenance of pneumatic accessories.Existing aircraft maintenance test cell are more single; Can only keep in repair to a certain concrete annex; If can develop a kind of test cell that can keep in repair multiple annex; Can significantly reduce maintenance cost, yet keep in repair the difference that needs to consider bleed pressure, heating-up temperature to different pneumatic accessoriess simultaneously, also will guarantee stable gas supply capacity simultaneously.
The utility model content
Goal of the invention: in order to overcome the deficiency that exists in the prior art, the aircraft pneumatic accessories multi-function test stand that the utility model provides a kind of satisfied different aviation pneumatic accessories maintenance requirements and can keep in repair multiple pneumatic accessories simultaneously.
Technical scheme: for realizing above-mentioned purpose; The aircraft pneumatic accessories multi-function test stand of the utility model; Comprise gas supply system, middle pressure gas channel and low pressure gas circuit; Said middle pressure gas channel and low pressure gas circuit warp FL/MTR and pressure regulating valve separately respectively are communicated with test area, and said low pressure gas circuit also is provided with the electro heat group that can be heated to different temperatures, the computing machine of pressure gas channel and low pressure gas circuit temperature or pressure signal in collection of said test area connection.
Said gas supply system comprises to the screw-rod air compressor of low pressure gas circuit air feed, to the piston type air compressor of middle pressure gas channel air feed, and storage tank.Said screw-rod air compressor and piston type air compressor all comprise oil water separator.The storage tank entrance of low pressure gas circuit and middle pressure gas channel is provided with the instrument of measuring feed air temperature and pressure, and the connection oil drain tube are got rid of greasy dirt at the bottom of each jar of gas storage.
For guaranteeing that Air compressor provides sufficient exhaust gas pressure, the quantity of said screw-rod air compressor or piston type air compressor is respectively 2 ~ 4.
In said pressure gas channel therefrom press storage tank outlet through in press gas storage pressure tap, middle pressure dryer, middle pressure dryer pressure tap, middle pressure dryer point for measuring temperature, in calm the anger filter, middle pressure type flowmeter, middle pressure pressure regulating valve to test area; Said low pressure gas circuit exports through low pressure gas storage pressure tap, low pressure dryer, low pressure dryer pressure tap, low pressure dryer point for measuring temperature, low pressure air filter, low pressure flow meter, low pressure regulating pressure valve, electro heat group to test area from low pressure gasholder.
The electro heat group of said low pressure gas circuit comprises the electro heat road of at least two groups parallel connection, and said electro heat road comprises series connected electro heat air circuit breaker, first electric heater and adjustable electric temperature booster.Said adjustable electric temperature booster comprises second electric heater, the mensuration second electric heater temperature out and feeds back to the electro heat point for measuring temperature of power regulating eqiupment, and the power regulating eqiupment of regulating second electric heater capacity.Said electro heat point for measuring temperature comprises temperature measuring set and carries out feedback regulation PID regulating control.The outlet on a plurality of electro heats road pools a pipeline and is provided with the miscellaneous gas point for measuring temperature and the miscellaneous gas pressure tap.
Said pressure regulating valve comprises the source of the gas pressure regulating valve and the back-pressure pressure regulating valve of parallel connection, according to the difference of low pressure gas circuit or middle pressure gas channel requirement of experiment, can increase one or more groups FL/MTR and pressure regulating valve.
Said point for measuring temperature adopts the resistance sensor change to send temperature signal also to pass through the digital displaying meter displays temperature to the computing machine of test section.Said pressure tap adopts piezoresistive transducer to become the pressurization pressure signal and arrives the computing machine of test section and show pressure through digital displaying meter.
The entrance of said test area is provided with shut-off valve, is used to control the test area air feed to different.Test area comprises turbine test section, starter test section, low voltage experiment district and middle pressure test section.Each test section is separate, and is equipped with the flange-interface and the pipeline of coupling.
Beneficial effect: the aircraft pneumatic accessories multi-function test stand of the utility model is rationally distributed; The trend of pipeline and the difference of different test accessories have been taken into full account; Distinguish the low-voltage and medium voltage gas circuit, realize making full use of of source of the gas, and can keep in repair multiple aircraft pneumatic accessories; Practice thrift cost, improved work efficiency.
Description of drawings
Fig. 1 is the system schematic of the utility model;
Fig. 2 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
As shown in Figure 1, the aircraft pneumatic accessories multi-function test stand of the utility model is made up of gas supply system 1, middle pressure gas channel a, low pressure gas circuit b and test section 4, and the test section comprises the test area 4 of the different test requests of separate realization, is parallel with a computing machine 6.Pressure type flowmeter 2a during middle pressure gas channel a comprises, middle pressure pressure regulating valve 3a; Low pressure gas circuit b comprises low pressure flow meter 2b, low pressure regulating pressure valve 3b, and electro heat group 5.
Specifically; As shown in Figure 2; Force down nip during gas supply system adopts and divide design, be communicated to low pressure gasholder to low pressure gas circuit b air feed through oil water separator by 2 screw-rod air compressor 1b, have 2 piston type air compressor 1a through oil water separator to middle pressure storage tank to middle pressure gas channel a air feed.Wherein, be connected with blow-off line at the bottom of middle pressure storage tank and the low pressure gasholder and advance drainage.Be provided with air feed point for measuring temperature and air feed pressure tap in the entrance of middle pressure storage tank and low pressure gasholder, be provided with the gas storage pressure tap in the exit.
In pressure gas channel a therefrom press storage tank successively through in press dryer, in calm the anger filter, instrument wind, middle pressure type flowmeter, middle pressure pressure regulating valve to the test section.The pressure of middle pressure gas channel a is 400 ~ 4000kg/h.
Low pressure gas circuit b from low pressure gasholder successively through low pressure dryer, low pressure air filter, instrument wind, low pressure flow meter, low pressure regulating pressure valve, electro heat group 5 to the test section 4.Electro heat group 5 comprises the electro heat roads of two groups of parallel connections, and the electro heat road comprises series connected electro heat air circuit breaker 51, first electric heater 52 and adjustable electric temperature booster 53.Adjustable electric temperature booster 53 by second electric heater 54, measure second electric heater, 54 temperature outs and feed back to the electro heat point for measuring temperature 56 of power regulating eqiupment 55, and the power regulating eqiupment 55 of regulating second electric heater, 54 power is formed.Electro heat point for measuring temperature 56 is for temperature measuring set and carry out feedback regulation PID regulating control.Low pressure regulating pressure valve comprises the source of the gas pressure regulating valve and the back-pressure pressure regulating valve of parallel connection.Cry extensively because the aerodynamic testing that adopts low-pressure gas source to carry out is more, so low pressure gas circuit b is divided into low pressure I road and low pressure II road again.Set up one group of low pressure flow meter and low pressure regulating pressure valve.Adjusting through two groups of low pressure regulating pressure valves and two groups of electro heat roads open and close with temperature adjustment realizes that the flow range on low pressure I road is 700 ~ 6000kg/h, 450 ℃ of maximum heating abilities, low pressure II road flow range be 400 ~ 4000kg/h, 450 ℃ of maximum heating abilities.
Wherein, point for measuring temperature comprises temperature measuring set and the SR253 high Accuracy PID regulating control that carries out feedback regulation.Adopt resistance sensor to become and send temperature signal to the computing machine 6 of test section and through the digital displaying meter displays temperature.Pressure tap adopts piezoresistive transducer to become the pressurization pressure signal and arrives the computing machine 6 of test section and show pressure through digital displaying meter.FL/MTR is selected the high precision mass flowmeter of band pressure and temperature online compensation for use, precision 1%, and exportable (4～20) mA normalized current send instrument to show.Electric heater is the electric air heater of 150kw, and power regulating eqiupment 55 is the KTF type.
Middle pressure gas channel a and low pressure gas circuit b finally converge to test area 4.Test area 4 comprises that most aircrafts start the test platform of annex, comprise turbine test section, starter test area, middle pressure test area and low pressure test (LPT) district.Inlet in the different tests district is provided with shut-off valve and is used to control the test area air feed to different.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (8)
1. aircraft pneumatic accessories multi-function test stand; It is characterized in that: these test cell comprise gas supply system (1), middle pressure gas channel (a) and low pressure gas circuit (b); Said middle pressure gas channel (a) and low pressure gas circuit (b) warp FL/MTR and pressure regulating valve separately respectively are communicated with test area (4); Said low pressure gas circuit (b) also is provided with the electro heat group (5) that can be heated to different temperatures, the computing machine (6) of pressure gas channel (a) and low pressure gas circuit (b) temperature or pressure signal in collection of said test area (4) connection.
2. aircraft pneumatic accessories multi-function test stand according to claim 1; It is characterized in that: said electro heat group (5) comprises the electro heat road of at least two groups parallel connection, and said electro heat road comprises series connected electro heat air circuit breaker (51), first electric heater (52) and adjustable electric temperature booster (53).
3. aircraft pneumatic accessories multi-function test stand according to claim 2; It is characterized in that: said adjustable electric temperature booster (53) comprises second electric heater (54), mensuration second electric heater (54) temperature out and feeds back to the electro heat point for measuring temperature (56) of power regulating eqiupment (55), and the power regulating eqiupment (55) of regulating second electric heater (54) power.
4. aircraft according to claim 3 starts fitting integrated test cell, it is characterized in that: said electro heat point for measuring temperature (56) comprises temperature measuring set and carries out feedback regulation PID regulating control.
5. aircraft pneumatic accessories multi-function test stand according to claim 1 is characterized in that: said pressure regulating valve comprises the source of the gas pressure regulating valve and the back-pressure pressure regulating valve of parallel connection.
6. aircraft pneumatic accessories multi-function test stand according to claim 1, it is characterized in that: the entrance of said test area is provided with shut-off valve.
7. aircraft pneumatic accessories multi-function test stand according to claim 1 is characterized in that: said gas supply system comprises to the screw-rod air compressor of low pressure gas circuit (b) air feed, to the piston type air compressor of middle pressure gas channel (a) air feed, and storage tank.
8. aircraft pneumatic accessories multi-function test stand according to claim 1, it is characterized in that: these test cell also comprise air dryer and air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202229587U CN202180935U (en) | 2011-06-29 | 2011-06-29 | Comprehensive test bed for pneumatic accessories of airplanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202229587U CN202180935U (en) | 2011-06-29 | 2011-06-29 | Comprehensive test bed for pneumatic accessories of airplanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202180935U true CN202180935U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202229587U Expired - Fee Related CN202180935U (en) | 2011-06-29 | 2011-06-29 | Comprehensive test bed for pneumatic accessories of airplanes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202180935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285462A (en) * | 2011-06-29 | 2011-12-21 | 南京王行航空附件维修工程有限公司 | Comprehensive test stand for aircraft pneumatic accessories |
| CN106593655A (en) * | 2016-11-22 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Air turbo-starter air supplying system and control method |
| CN107462390A (en) * | 2016-06-06 | 2017-12-12 | 苏州中尧节能环保设备有限公司 | A kind of dual flow path Multifunctional mobile and heat exchange test device |
-
2011
- 2011-06-29 CN CN2011202229587U patent/CN202180935U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285462A (en) * | 2011-06-29 | 2011-12-21 | 南京王行航空附件维修工程有限公司 | Comprehensive test stand for aircraft pneumatic accessories |
| CN107462390A (en) * | 2016-06-06 | 2017-12-12 | 苏州中尧节能环保设备有限公司 | A kind of dual flow path Multifunctional mobile and heat exchange test device |
| CN106593655A (en) * | 2016-11-22 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Air turbo-starter air supplying system and control method |
| CN106593655B (en) * | 2016-11-22 | 2018-07-31 | 沈阳黎明航空发动机(集团)有限责任公司 | Air turbine starter air supply system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20160629 |