CN208568274U - Civil aircraft accessory power system Fuel Flow Regulator test device - Google Patents
Civil aircraft accessory power system Fuel Flow Regulator test device Download PDFInfo
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- CN208568274U CN208568274U CN201820760428.XU CN201820760428U CN208568274U CN 208568274 U CN208568274 U CN 208568274U CN 201820760428 U CN201820760428 U CN 201820760428U CN 208568274 U CN208568274 U CN 208568274U
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- Prior art keywords
- valve
- fuel flow
- flow regulator
- working connection
- pressure
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- 239000000446 fuel Substances 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 7
- 238000011056 performance test Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 49
- 238000012423 maintenance Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a kind of civil aircraft accessory power system Fuel Flow Regulator test devices, it is tested by the device, it does not need using expensive aerospace parts, can the function realization of nozzle and side valve to the fuel downstream circuit as Fuel Flow Regulator accurately and effectively simulate, complete the performance test to Fuel Flow Regulator.The test device includes: working connection: being connected with strainer, accumulator, temp probe, forepressure table, shut-off valve, adjustable pressure relieving valve, primary choke, rear class pressure gauge, pressure regulator valve and flowmeter in turn from oiler to oil outlet with pipeline；Auxiliary oil circuit: after the preceding forepressure table terminated on working connection before shut-off valve, split point is formed；After terminate at primary choke after, before rear class pressure gauge, formed confluence；Centre is connected to chromaffin body head piece；Oil return line: it is preceding terminate at the pressure gauge on working connection after, shut-off valve front and back ends are that oil return opening, centre are connected to adjustable shuttle valve.
Description
Technical field
The utility model relates to a kind of test device more particularly to a kind of civil aircraft accessory power system fuel flow tune
Save device test device.
Background technique
Fuel system is the important component of aircraft engine and accessory power system, and component, which directly influences, to be started
The safety and performance of machine and accessory power system are always the emphasis of maintenance.
The engine and accessory power system of civil aircraft include Fuel Flow Regulator more, all kinds of control pressurized struts, divide
Flow valve and fuel nozzle etc..It is generally used double oil circuits fuel feeding, improves nozzle atomization effect, is pressed by side valve
Power setting realizes that oil circuit switches fuel feeding；In low pressure, using auxiliary oil circuit nozzle, when high pressure, side valve opened by pressure is used
Auxiliary oil circuit nozzle and working connection nozzle fuel feeding together.
Side valve is made of shuttle valve and pressure relieving valve, and when oil circuit pressure is lower than setting value, working connection is closed, and fuel oil passes through secondary
Grade oil circuit supplies auxiliary oil circuit nozzle；When oil circuit pressure is greater than the set value, working connection is opened, and fuel oil passes through secondary oil circuit and main oil
Road fuel feeding together is matched to working connection nozzle and auxiliary oil circuit nozzle.Fuel Flow Regulator is accessory power system heart, is played
The adjusting and control of fuel flow and fuel pressure.How fuel circuit in accessory power system, economic and reliable safety are simulated
Test Fuel Flow Regulator performance, be Fuel Flow Regulator maintenance in difficult point.
The prior art mostly referring to air line figure, is bought aerospace parts (side valve and fuel nozzle), builds fuel oil stream
Measure the test macro of adjuster.But aerospace parts are expensive and regular maintenance cost is high, with APS3200 accessory power system
For, it is related to 1 side valve, 6 working connection nozzles, 3 auxiliary oil circuit nozzles, the procurement price of the whole material that navigates is in 170,000 people
Coin does not also include daily maintenance and maintenance expense, causes purchase and maintenance cost excessively high；Simultaneously as the component that test is related to
It is more, it be easy to cause deviation to be superimposed, causes the whole deviation of data, reliability is low.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of civil aircraft accessory power system fuel flow
Adjuster test device.
It is tested, is not needed using expensive aerospace parts, and incorporate side valve by the device
And the parameter of major and minor oil circuit nozzle, it can nozzle to the fuel downstream circuit as Fuel Flow Regulator and side valve
Function realization is accurately and effectively simulated, and the performance test to Fuel Flow Regulator is completed.
Above-mentioned technical problem is solved, the technical solution adopted in the utility model is as follows:
A kind of civil aircraft accessory power system Fuel Flow Regulator test device, it is characterized in that including:
Working connection: strainer 2, accumulator 3, temp probe 4, preceding is connected in turn from oiler 1 to oil outlet 12 with pipeline
Stage pressure table 5, shut-off valve 6, adjustable pressure relieving valve 7, primary choke 8, rear class pressure gauge 9, pressure regulator valve 10 and flowmeter 11；
Auxiliary oil circuit: after the preceding forepressure table 5 terminated on working connection before shut-off valve 6, split point 16 is formed；After terminate at
After primary choke 8 before rear class pressure gauge 9, confluence 17 is formed；Centre is connected to chromaffin body head piece 13；
Oil return line: 6 front and back ends of shut-off valve are oil return opening 15 after the preceding pressure gauge 5 terminated on working connection, centre is connected to can
Adjust shuttle valve 14.
As a kind of embodiment of the utility model, the accumulator uses spring accumulator.
The utility model simulates main fuel nozzle and auxiliary oil circuit nozzle by the primary choke and chromaffin body head piece respectively,
And side valve is simulated by the shuttle valve of the pressure relieving valve of pressure-adjustable and pressure-adjustable, realize the standard to civil aircraft accessory power system
Really simulation, completes the performance test of Fuel Flow Regulator.
The utility model has the following beneficial effects:
1. the utility model is at low cost, do not need using expensive aerospace parts, cost be about it is existing test at
This 1/10；
2. the utility model simulates the flow pressure characteristic of major and minor oil circuit nozzle by restriction, the superposition of nozzle is eliminated
Error, and restriction parameter constant are not necessarily to daily maintenance；
3. the utility model simulates side valve by the pressure relieving valve and shuttle valve of pressure-adjustable, pressure can be carried out according to actual needs
Adjusting, realize simulation to various type side valves, it is convenient, flexible, it is applied widely, and due to the pressure relieving valve and
Shuttle valve is manually adjustable, and the service life of device can be improved, and reduces regular maintenance cost；
4. the fluctuation of pressure and flow is small, stability is high, improves test data accuracy；
5. device described in the utility model is designed using normal formula, only need in use by oiler, oil outlet, oil return opening
It is respectively connected to corresponding pipeline, it is convenient and efficient, effectively improve maintenance efficiency.
Detailed description of the invention
The utility model is further described below by way of the drawings and specific embodiments.
The piping connection relationship of civil aircraft accessory power system Fuel Flow Regulator simulating test device described in Fig. 1
Schematic diagram.
Fig. 2 carries out simulation test using the civil aircraft accessory power system Fuel Flow Regulator test device
Flow chart.
Appended drawing reference: 1- oiler；2- strainer；3- spring accumulator；4- temp probe；5- forepressure table；6- is closed
Disconnected valve；7- pressure relieving valve；8- primary choke；9- rear class pressure gauge；10- pressure regulator valve；11- flowmeter；12- oil outlet；13- chromaffin body stream
Mouthful；14- shuttle valve；15- oil return opening；16- split point；The confluence 17-.
Specific embodiment
The utility model is further described below by way of specific embodiment.
As shown in Fig. 1, strainer 2 is installed at the oiler 1 of pipeline, and spring accumulator is successively installed on pipeline
3, temp probe 4, forepressure table 5, pipeline is working connection and auxiliary oil circuit in the punishment stream of split point 16, in the working connection
It is sequentially connected shut-off valve 6, pressure relieving valve 7, primary choke 8, the auxiliary connection restriction 13 in the auxiliary oil circuit, described is major and minor
Oil circuit converges at confluence 17, and rear class pressure gauge 9 is sequentially installed on the pipeline after confluence, connects pressure regulator valve 10, flow
Meter 11, the other end of flowmeter 11 connect oil outlet 12, and oil return opening 15 connects shuttle valve 14, and the other end of shuttle valve 14 is connected to prime
On pipeline between pressure gauge 5 and split point 16, the installation of described device is completed.
The simulation test working principle of above-mentioned device are as follows: the strainer 2 installed at the oiler 1 of pipeline is for filtering combustion
Oil guarantees the cleaning of device internal fuel；Spring accumulator 3 keeps the system pressure of relative temperature for eliminating pressure oscillation
Power；Temp probe 4 is used for the fuel oil temperature of detection device；Forepressure table 5 is used to monitor the prime pressure of the major and minor oil circuit
Power；Split point 16 makes the pipeline shunt working connection and auxiliary oil circuit of device, in the working connection, when shut-off valve 6 is used for long
Between low voltage experiment when, working connection circuit is turned off manually, reduces the loss of the pressure relieving valve；Pressure relieving valve 7 is for simulating side valve
Working connection is opened；Primary choke 8 is for simulating working connection nozzle；In the auxiliary oil circuit, chromaffin body head piece 13 is for simulating pair
Oil circuit nozzle；After major and minor oil circuit converges at confluence 17, the rear class pressure gauge 9 of installation is for monitoring the major and minor oil circuit
Stage pressure afterwards；Pressure regulator valve 10 is for finely tuning outlet pressure；Flowmeter 11 is used for the fuel flow of monitoring device；Shuttle valve 14 is used for mould
The pressure control of quasi- side valve；Oiler 1 is used to export during simulation test with the oil circuit of Fuel Flow Regulator
It is connected, oil outlet 12, oil return opening 15 are respectively used to connect the correspondence oil circuit of tested Fuel Flow Regulator.
Described device simulates main fuel nozzle and auxiliary oil circuit nozzle by primary choke 8 and chromaffin body head piece 13 respectively, and leads to
The shuttle valve 14 of the pressure relieving valve 7 and pressure-adjustable of crossing pressure-adjustable simulates side valve, realizes the standard to civil aircraft accessory power system
Really simulation, completes the functional test of Fuel Flow Regulator.
Simulation test is carried out using the civil aircraft accessory power system Fuel Flow Regulator test device:
(1) the front and back pressure difference value of single-nozzle in the major and minor oil circuit of practical civil aircraft is tested and calculated respectively；
(2) nozzle flow under the conditions of pressure difference value measured by step (1) is calculated, the stream of working connection nozzle is obtained
Measure the flow@operating pressure difference parameter 8.0PPH@of@operating pressure difference parameter 37.8PPH@100psid, auxiliary oil circuit nozzle
100psid；
(3) nozzle quantity for determining working connection in accessory power system is 6, the nozzle quantity of auxiliary oil circuit is 3；
(4) according to the nozzle quantity in oil circuit major and minor in accessory power system, selecting parameter is 6*37.8PPH@
The primary choke and parameter of 100psid is the chromaffin body head piece of 3*8.0PPH@100psid；
(5) the installation civil aircraft accessory power system Fuel Flow Regulator test device, adjusts the shuttle valve
Closing pressure be 43~47psig, the opening pressure of pressure relieving valve is 190~210psig, to simulate the parameter of side valve；
(6) oil circuit that the oiler of test device is connected to Fuel Flow Regulator is exported, oil outlet and oil return opening point
It is not connected to the correspondence oil circuit of tested Fuel Flow Regulator；
(7) start simulation test, record the reading of forepressure table, temp probe, rear class pressure gauge, flowmeter.
The flow@operating pressure difference parameter 37.8PPH@100psid of working connection nozzle, indicates that the operating pressure of the nozzle is poor
For 100psid, flow 37.8PPH；The flow@operating pressure difference parameter 8.0PPH@100psid of auxiliary oil circuit nozzle, indicating should
The operating pressure difference of nozzle is 100psid, flow 8.0PPH.
Claims (2)
1. a kind of civil aircraft accessory power system Fuel Flow Regulator test device, it is characterized in that including:
Working connection: strainer (2), accumulator (3), temp probe are connected in turn from oiler (1) to oil outlet (12) with pipeline
(4), forepressure table (5), shut-off valve (6), adjustable pressure relieving valve (7), primary choke (8), rear class pressure gauge (9), pressure regulator valve
(10) and flowmeter (11)；
Auxiliary oil circuit: the preceding forepressure table (5) terminated on working connection afterwards, before shut-off valve (6), formed split point (16)；Rear end
Connect primary choke (8) afterwards, before rear class pressure gauge (9), formed confluence (17), centre is connected to chromaffin body head piece (13)；
Oil return line: the preceding forepressure table (5) terminated on working connection afterwards shut-off valve (6) front and back ends be oil return opening (15), it is intermediate
It is connected to adjustable shuttle valve (14).
2. civil aircraft accessory power system Fuel Flow Regulator test device according to claim 1, characterized in that
The accumulator (3) uses spring accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820760428.XU CN208568274U (en) | 2018-05-22 | 2018-05-22 | Civil aircraft accessory power system Fuel Flow Regulator test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820760428.XU CN208568274U (en) | 2018-05-22 | 2018-05-22 | Civil aircraft accessory power system Fuel Flow Regulator test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208568274U true CN208568274U (en) | 2019-03-01 |
Family
ID=65482696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820760428.XU Withdrawn - After Issue CN208568274U (en) | 2018-05-22 | 2018-05-22 | Civil aircraft accessory power system Fuel Flow Regulator test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208568274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426710A (en) * | 2018-05-22 | 2018-08-21 | 广州飞机维修工程有限公司 | Civil aircraft accessory power system Fuel Flow Regulator test device and method |
-
2018
- 2018-05-22 CN CN201820760428.XU patent/CN208568274U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426710A (en) * | 2018-05-22 | 2018-08-21 | 广州飞机维修工程有限公司 | Civil aircraft accessory power system Fuel Flow Regulator test device and method |
| CN108426710B (en) * | 2018-05-22 | 2024-04-30 | 广州飞机维修工程有限公司 | Testing device and method for fuel flow regulator of auxiliary power system of civil aircraft |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190301 Effective date of abandoning: 20240430 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190301 Effective date of abandoning: 20240430 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |