CN107843416A - A kind of Aviation Fuel nozzle string oil detection method - Google Patents
A kind of Aviation Fuel nozzle string oil detection method Download PDFInfo
- Publication number
- CN107843416A CN107843416A CN201710901059.1A CN201710901059A CN107843416A CN 107843416 A CN107843416 A CN 107843416A CN 201710901059 A CN201710901059 A CN 201710901059A CN 107843416 A CN107843416 A CN 107843416A
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- Prior art keywords
- oil
- oil circuit
- pressure
- fuel nozzle
- aviation fuel
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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
- G01M13/00—Testing of machine parts
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of Aviation Fuel nozzle string oil detection method, the oil circuit of a plurality of oil circuit of Aviation Fuel nozzle is first connect into mouth connection corresponding with each oil feed line of test for nozzle flow equipment respectively, in connection, an oil circuit is only stayed as open circuit oil circuit, remaining oil circuit fuel feeding shutoff valve is closed, makes remaining oil circuit to close oil circuit；Open circuit oil circuit fuel feeding is given again, and charge oil pressure is adjusted to design code flow rate test pressure；The pressure gauge for closing oil circuit series connection corresponding with nozzle on oil circuit is observed again, if the pressure gauge has pressure to show, is shown the road fuel nozzle string oil, if pressure gauge no pressure is shown, is shown that the road sealed nozzle is in good condition；Circulation above step detects successively to other oil circuits, and whether go here and there oil, have the characteristics of easy to operate, reliability is high if can detect the parallel Aviation Fuel nozzle of more oil inlet Multi-oil circuits by the detection method of the present invention.
Description
【Technical field】
The invention belongs to Aviation Fuel nozzle debugging technique field, is detected for Aviation Fuel nozzle string oil, and in particular to
A kind of Aviation Fuel nozzle string oil detection method.
【Background technology】
Aviation Fuel nozzle flow is one important characteristic of Aviation Fuel nozzle, determines that aeroengine thrust is big
It is small；Due to aero-engine high thrust and Larger Dynamic demand, Aviation Fuel nozzle uses Multi-oil circuit nozzle more at present；It is corresponding to start
Machine different working condition, nozzle flow are different, it is necessary to the oil circuit work of respective amount；Therefore do not allow to occur between each bar oil circuit
Oil circuit intercommunication phenomenon；It is oily if there is being gone here and there between oil circuit, then nozzle flow can be caused unstable, so as to cause engine performance stable
Property be deteriorated.The method of generally use is that nozzle is fixed in leakage test equipment, and an oil circuit and leakage test equipment
Connection, then block connection oil circuit with Special seal test tool and correspond to spout (corresponding to oil circuit to export), then tested.By
It is smaller in spout aperture, and present position narrow space, the manufacture of leakage test Fixture Design is difficult, so as to cause Operational preparation all
Phase is grown, and production cost is high.
【The content of the invention】
To solve problems of the prior art, it is an object of the invention to provide a kind of Aviation Fuel nozzle string oil to examine
Survey method, the parallel Aviation Fuel nozzle of more oil inlet Multi-oil circuits can be detected by this method and whether go here and there oil.
The purpose of the present invention is achieved by the following technical solution：
A kind of Aviation Fuel nozzle string oil detection method, comprises the following steps：
Step 1, by the oil circuit of a plurality of oil circuit of Aviation Fuel nozzle connect mouth respectively with each fuel feeding of test for nozzle flow equipment
Pipeline is corresponding to be connected, and in connection, only stays an oil circuit to close remaining oil circuit fuel feeding shutoff valve as open circuit oil circuit, make it
Excess oil road is closing oil circuit；
Step 2, then open circuit oil circuit fuel feeding is given, and charge oil pressure is adjusted to design code flow rate test pressure；
Step 3, then the pressure gauge for closing oil circuit series connection corresponding with nozzle on oil circuit is observed, if the pressure gauge has pressure to show
Show, then show the road fuel nozzle string oil, if pressure gauge no pressure is shown, show that the road sealed nozzle is in good condition.
Circulation step 1 detects successively to step 3 to other oil circuits.
When Aviation Fuel nozzle is double feed inlet pair oil circuit parallel connection Aviation Fuel nozzle, comprise the following steps：
Step 1), two oil circuits of Aviation Fuel nozzle are connect into two oil feed lines of the mouth respectively with flow test equipment and connected
Connect；
Step 2), the oil circuit fuel feeding stop valve closed in flow test equipment；
Step 3), then give open circuit oil circuit fuel feeding, regulation charge oil pressure to design code flow rate test pressure；
The pressure gauge connected with nozzle is closed on oil circuit in step 4), observation, and whether pressure gauge has pressure to show；
Step 5), if pressure gauge has pressure to show, show, Aviation Fuel nozzle string oil；Show if without display, aviation
Fuel nozzle sealing state is good.
Before step 1) is carried out, first Aviation Fuel nozzle is assembled on test fixture, and is set fixed to flow test
It is standby upper.
In the step 3), it is 1MPa to set regulation flow rate test pressure.
In the step 5), if Aviation Fuel nozzle string is oily, Aviation Fuel nozzle is repaired by the method for grinding, repaired
After repeat step 1) and arrive step 5).Compared with prior art, the present invention has the advantages that：
The present invention is each with test for nozzle flow equipment respectively by the way that the oil circuit of a plurality of oil circuit of Aviation Fuel nozzle is connect into mouth
Oil feed line is corresponding to be connected, and in connection, is only stayed an oil circuit to be used as open circuit oil circuit, is closed remaining oil circuit fuel feeding shutoff valve,
Make remaining oil circuit to close oil circuit；Open circuit oil circuit fuel feeding is given again, and charge oil pressure is adjusted to design code flow rate test pressure；
The pressure gauge for closing oil circuit series connection corresponding with nozzle on oil circuit is observed again, if the pressure gauge has pressure to show, shows the road
Fuel nozzle string oil, the methods of can passing through grinding, are repaired, and oil is not gone here and there in guarantee, if pressure gauge no pressure is shown, shows the road
Sealed nozzle is in good condition；Nozzle is detected by rotation successively can just to detect all nozzles.The present invention utilizes flow
Testing equipment and flow test frock can just detect, and Detection results are more directly perceived, and without Special seal testing equipment
And frock, reduce production cost.Therefore, method of the invention has the characteristics of easy to operate, reliability is high.
【Brief description of the drawings】
Fig. 1 is the parallel Aviation Fuel nozzle arrangements schematic diagram of the double oil circuits of double feed inlet.
Fig. 2 is the detection method by the present invention to the parallel Aviation Fuel nozzle string oil Cleaning Principle of the double oil circuits of double feed inlet
Schematic diagram.
Wherein, 1- Aviation Fuels nozzle, at the sealing of 2- nozzles, the oil circuit of 3- nozzles, 4- stop valves, 5- pressure gauges, 6-
Experimental facilities fuel feed pump, 7 spouts.
【Embodiment】
In order to which the technology of the present invention feature, purpose and effect are more clearly understood, now control brief description of the drawings is of the invention
Embodiment, the explanation of the invention is not limited.
The Aviation Fuel nozzle string oil detection method of the present invention, comprises the following steps：
Step 1, assembling nozzle；
Step 2, nozzle is assembled on flow test fixture again, nozzle oil circuit then is connect into mouth tries with nozzle flow respectively
The corresponding connection of each oil feed line of equipment is tested, in connection, only stays an oil circuit to close remaining oil circuit fuel feeding as open circuit oil circuit and cut
Only valve, make remaining oil circuit to close oil circuit；
Step 3, open circuit oil circuit fuel feeding is given again, and charge oil pressure is adjusted to design code flow rate test pressure；
Step 4, observation close the pressure gauge of oil circuit series connection corresponding with nozzle on oil circuit, check whether pressure gauge has pressure to show
Show：If pressure gauge has pressure to show, indicate that fuel nozzle string oil, it is necessary to repair；Show if without display, sealed nozzle state
Well, flow rate test can be carried out；
Other oil circuits are detected by step 5, circulation step 2 to step 4 successively.
Embodiment
As depicted in figs. 1 and 2, by taking the double oil circuit parallel connection Aviation Fuel nozzle string oil tests of certain type double feed inlet as an example：Nozzle is
Assembling is completed, in order to ensure flow accuracy and stability during flow test, it is necessary to carry out string oil test before flow test, its
Step is：
Step 1), nozzle is assembled on test fixture, and fixed in test for nozzle flow equipment；
Step 2), two oil circuits of nozzle connect mouth and are connected respectively with two oil feed lines of flow test equipment；
Step 3), an oil circuit fuel feeding stop valve in pass hull closure；
Step 4), oil circuit fuel feeding of opening a way, regulation charge oil pressure to design code flow rate test pressure 1MPa；
The pressure gauge connected with nozzle is closed on oil circuit in step 5), observation, and whether pressure gauge has pressure to show；
The methods of step 6), if pressure gauge has pressure to show, showing, fuel nozzle string oil, can passing through grinding is repaired,
Step 1) is re-executed after reparation and arrives step 5).
Claims (6)
1. a kind of Aviation Fuel nozzle string oil detection method, it is characterised in that comprise the following steps：
Step 1, by the oil circuit of a plurality of oil circuit of Aviation Fuel nozzle connect mouth respectively with each oil feed line of test for nozzle flow equipment
Corresponding connection, in connection, an oil circuit is only stayed to close remaining oil circuit fuel feeding shutoff valve as open circuit oil circuit, make its excess oil
Road is closing oil circuit；
Step 2, then open circuit oil circuit fuel feeding is given, and charge oil pressure is adjusted to design code flow rate test pressure；
Step 3, then the pressure gauge for closing oil circuit series connection corresponding with nozzle on oil circuit is observed, if the pressure gauge has pressure to show,
Then show the road fuel nozzle string oil, if pressure gauge no pressure is shown, show that the road sealed nozzle is in good condition.
A kind of 2. Aviation Fuel nozzle string oil detection method according to claim 1, it is characterised in that circulation step 1 to
Step 3, other oil circuits are detected successively.
3. a kind of Aviation Fuel nozzle string oil detection method according to claim 1, it is characterised in that when Aviation Fuel sprays
When mouth is double feed inlet pair oil circuit parallel connection Aviation Fuel nozzle, comprise the following steps：
Step 1), two oil circuits of Aviation Fuel nozzle are connect into mouth and are connected respectively with two oil feed lines of flow test equipment；
Step 2), the oil circuit fuel feeding stop valve closed in flow test equipment；
Step 3), then give open circuit oil circuit fuel feeding, regulation charge oil pressure to design code flow rate test pressure；
The pressure gauge connected with nozzle is closed on oil circuit in step 4), observation, and whether pressure gauge has pressure to show；
Step 5), if pressure gauge has pressure to show, show, Aviation Fuel nozzle string oil；Show if without display, Aviation Fuel
Sealed nozzle is in good condition.
4. a kind of Aviation Fuel nozzle string oil detection method according to claim 3, it is characterised in that carrying out step 1)
Before, first Aviation Fuel nozzle is assembled on test fixture, and fixed in flow test equipment.
A kind of 5. Aviation Fuel nozzle string oil detection method according to claim 3, it is characterised in that the step 3)
In, it is 1MPa to set regulation flow rate test pressure.
A kind of 6. Aviation Fuel nozzle string oil detection method according to claim 3, it is characterised in that the step 5)
In, if Aviation Fuel nozzle string is oily, Aviation Fuel nozzle is repaired by the method for grinding, step 1) is repeated after reparation and arrives
Step 5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901059.1A CN107843416A (en) | 2017-09-28 | 2017-09-28 | A kind of Aviation Fuel nozzle string oil detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901059.1A CN107843416A (en) | 2017-09-28 | 2017-09-28 | A kind of Aviation Fuel nozzle string oil detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107843416A true CN107843416A (en) | 2018-03-27 |
Family
ID=61662135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710901059.1A Pending CN107843416A (en) | 2017-09-28 | 2017-09-28 | A kind of Aviation Fuel nozzle string oil detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107843416A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964427A (en) * | 2021-02-09 | 2021-06-15 | 中国航发哈尔滨东安发动机有限公司 | Fuel nozzle and main pipe combined sealing test device and method |
| CN113299173A (en) * | 2021-06-08 | 2021-08-24 | 无锡航试电液系统有限公司 | Nozzle demonstration oil way flow applied to aerospace |
| CN114087627A (en) * | 2021-11-11 | 2022-02-25 | 中国航发贵州黎阳航空动力有限公司 | Miniature aircraft engine fuel manifold nozzle and oil mixing test method thereof |
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| CN102865979A (en) * | 2012-09-14 | 2013-01-09 | 四川制动科技股份有限公司 | Testing system and testing method for air tightness of main valve body component of 120 valve |
| KR20150063199A (en) * | 2013-11-29 | 2015-06-09 | 한전케이피에스 주식회사 | Condition inspection device for fuel pump and spray nozzle of diesel engine |
| KR20160066062A (en) * | 2014-11-14 | 2016-06-10 | 충남대학교산학협력단 | Combustion Testing Device of High Altitude Environment and Testing Method of the Same |
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| CN206146634U (en) * | 2016-11-09 | 2017-05-03 | 东莞市科翔试验设备有限公司 | Flow characteristic test device of nozzle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964427A (en) * | 2021-02-09 | 2021-06-15 | 中国航发哈尔滨东安发动机有限公司 | Fuel nozzle and main pipe combined sealing test device and method |
| CN113299173A (en) * | 2021-06-08 | 2021-08-24 | 无锡航试电液系统有限公司 | Nozzle demonstration oil way flow applied to aerospace |
| CN114087627A (en) * | 2021-11-11 | 2022-02-25 | 中国航发贵州黎阳航空动力有限公司 | Miniature aircraft engine fuel manifold nozzle and oil mixing test method thereof |
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Application publication date: 20180327 |
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