CN105403370A - Airtightness test device and method for combustion chamber nozzle - Google Patents
Airtightness test device and method for combustion chamber nozzle Download PDFInfo
- Publication number
- CN105403370A CN105403370A CN201510726111.5A CN201510726111A CN105403370A CN 105403370 A CN105403370 A CN 105403370A CN 201510726111 A CN201510726111 A CN 201510726111A CN 105403370 A CN105403370 A CN 105403370A
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- pressure
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- nozzle
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- fuel manifold
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention provides an airtightness test device and method for a combustion chamber nozzle. The device comprises a gas storage bottle, the gas storage bottle is connected with a fuel manifold of a main combustion chamber through a pipe, a total-pressure valve, a total pressure gauge and a constant-pressure valve are successively connected in series on the pipe connected with the gas storage bottle and the fuel manifold, a pressure gauge valve and a seal pressure gauge are disposed on the pipe, which is connected with the constant-pressure valve and the fuel manifold, in a parallel connection manner, and a nitrogen gas is filled in the gas storage bottole. Through adoption of an overall seal test of the fuel manifold, a seal test of a nozzle is performed on the condition that the combustion chamber nozzle is not decomposed, labor intensity when airtightness check of the nozzle is performed is reduced, labor time is greatly shortened, damage of an oil gas on a human body is also reduced, auxiliary materials and labor cost are saved, and malposition, deformations and even fractures, which are resulted from the fact that fuel branched pipes are detached and mounted on the nozzle repeatedly, of the fuel branched pipes are prevented.
Description
Technical field:
The present invention relates to technical field of engine overhaul, be specifically related to a kind of air tightness tester and method of combustion chamber burner.
Background technology:
Certain engine main chamber needs to carry out leak check to nozzle after test run, before inspection, need nozzle to be in charge of from fuel oil decompose, then to single-nozzle kerosene be medium check sealing, every platform has multiple nozzle, do leakage test to need for a long time, and after leakage check, need be in charge of fuel oil and carry out again school type and connect nozzle inlet connecing mouth, the dislocation that this dismounting is repeatedly as easy as rolling off a log causes fuel oil to be in charge of and distortion, fuel nozzle connect mouth place seepage, and fuel oil can be caused time serious to be in charge of fracture.And when carrying out leakage test to combustion chamber burner, major part is all be that medium carries out leakage test with oils, and be all generally that single-nozzle is tested, test period is long, oil gas volatilization also has pollution, can cause very large economic waste and personal injury.
Summary of the invention:
The object of this invention is to provide a kind of air tightness tester and method of combustion chamber burner, avoid repeated disassembled and assembled nozzle causes fuel oil to be in charge of on fuel oil is in charge of dislocation and distortion, even cause fuel oil to be in charge of fracture.
For achieving the above object, the present invention is by the following technical solutions:
The air tightness tester of a kind of combustion chamber burner provided by the invention, comprise gas bomb, gas bomb connects the fuel manifold of main chamber by pipeline, the pipeline that gas bomb is connected with fuel manifold is arranged in series total pressure valve, stagnation pressure table and level pressure valve successively, the pipeline that level pressure valve is connected with fuel manifold has been arranged in parallel pressure gage valve and pressure gauge.
Filling in described gas bomb is nitrogen.
Adopt the air tightness tester of above-mentioned combustion chamber burner to carry out the method for tightness test to combustion chamber burner, concrete steps are as follows:
1. main chamber is decomposed into cell cube state, the fuel manifold namely on main chamber and fuel nozzle do not decompose, and to fuel manifold and fuel nozzle visual examination, confirm on fuel manifold and fuel nozzle without fracture or crackle;
2. the fuel manifold of pair band fuel nozzle carries out air seal pressure test;
2.1 pairs of fuel manifold fuel inlet neck places clean, and ensure interface inclusion-free;
2.2 check whether fuel nozzle has clamping stagnation:
The pipeline air tightness tester of above-mentioned combustion chamber burner being connected gas bomb connects the fuel manifold of main chamber, by level pressure valve open, then total pressure valve is opened, check stagnation pressure meter reading, gaseous tension is elevated to certain pressure value fast, after keeping a period of time, as stagnation pressure meter reading is stablized, then can judge that fuel nozzle is unimpeded without clamping stagnation, fast by stagnation pressure valve closing, make Pressure Drop most 0;
The impermeability of 2.3 inspection fuel nozzles:
Pressure gage valve is opened, then total pressure valve is slowly opened, viewing pressure gauge, slowly pressure is elevated to certain pressure value, when sealing load meter reading arrives the mxm. of setting, by level pressure valve closing, keep a period of time, during this period of time, sealing load gauge pressure values reading is not less than the minimum of setting, then can judge that fuel nozzle impermeability is good; If check, sealing load gauge pressure values reading is lower than the minimum of setting, then exist seepage in the fuel nozzle on main chamber, need fuel nozzle to dismantle from main chamber, carry out airtight test to single-nozzle.
In described step 2.2, gaseous tension is increased to 1-1.38mpa by 0 fast, and keeps more than 3 seconds.
In described step 2.3, gas is risen to 0.104mpa by pressure is raised 0, and keep 2 minutes.
The mxm. of described setting is 0.104mpa; The minimum of described setting is 0.09mpa.
Beneficial effect of the present invention: by adopting the test of fuel manifold integral sealing, the leakage test of nozzle is carried out when not decomposing combustion chamber burner, reduce the labour intensity when carrying out nozzle airtight test, shorten working time greatly, decrease the injury of oil gas to human body, save auxiliary material and artificial expense, and avoid repeated disassembled and assembled nozzle causes fuel oil to be in charge of on fuel oil is in charge of dislocation and distortion, even cause fuel oil to be in charge of fracture.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the air tightness tester of a kind of combustion chamber burner of the present invention.
1-gas bomb, 2-pipeline, 3-main chamber, the total pressure valve of 4-, 5-stagnation pressure table, 6-level pressure valve, 7-pressure gage valve, 8-pressure gauge, 9-fuel manifold.
Embodiment:
Below in conjunction with embodiment, the present invention is described in further detail.
According to Fig. 1, a kind of air tightness tester of combustion chamber burner, comprise gas bomb 1, gas bomb 1 connects the fuel manifold of main chamber 3 by pipeline 2, the pipeline that gas bomb 1 is connected with fuel manifold 9 is arranged in series total pressure valve 4, stagnation pressure table 5 and level pressure valve 6 successively, the pipeline that level pressure valve 6 is connected with fuel manifold 9 has been arranged in parallel pressure gage valve 7 and pressure gauge 8.
Filling in described gas bomb 1 is nitrogen.
Adopt the air tightness tester of above-mentioned combustion chamber burner to carry out the method for tightness test to combustion chamber burner, concrete steps are as follows:
1. main chamber 3 is decomposed into cell cube state, the fuel manifold 9 namely on main chamber 3 and fuel nozzle do not decompose, and to fuel manifold 9 and fuel nozzle (not shown) visual examination, confirm on fuel manifold 9 and fuel nozzle without fracture or crackle;
2. the fuel manifold 9 of pair band fuel nozzle carries out air seal pressure test;
2.1 pairs of fuel manifold 9 fuel inlet neck places clean, and ensure interface inclusion-free;
2.2 check whether fuel nozzle has clamping stagnation:
The pipeline 2 air tightness tester of above-mentioned combustion chamber burner being connected gas bomb 1 connects the fuel manifold 9 of main chamber 3, level pressure valve 6 is opened, then open total pressure valve 4, check stagnation pressure table 5 reading, gaseous tension is risen to 1-1.38mpa by 0 fast, keep more than 3 seconds, after 3 seconds, as stagnation pressure table 5 stable reading, then can judge that fuel nozzle is unimpeded without clamping stagnation, quick total pressure valve 4 to be closed, make Pressure Drop most 0;
The impermeability of 2.3 inspection fuel nozzles:
Pressure gage valve 7 is opened, then total pressure valve 4 is slowly opened, viewing pressure gauge 8, slowly pressure is risen to 0.104mpa by 0, when pressure gauge 8 reading arrives 0.104mpa, level pressure valve 6 is closed, keep 2 minutes, in 2 minutes, pressure gauge 8 force value reading is not less than 0.09mpa, then can judge that fuel nozzle impermeability is good; If check, pressure gauge 8 force value reading is lower than 0.09mpa, then exist seepage in the fuel nozzle on main chamber, need fuel nozzle to dismantle from main chamber, carry out airtight test to single-nozzle.
After 2.4 leakage tests are qualified, have (foreign object injure vestige) without exception with boresoope inspection nozzle body of rod place.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of this right.
Claims (6)
1. the air tightness tester of a combustion chamber burner, it is characterized in that: comprise gas bomb, gas bomb connects the fuel manifold of main chamber by pipeline, the pipeline that gas bomb is connected with fuel manifold is arranged in series total pressure valve, stagnation pressure table and level pressure valve successively, the pipeline that level pressure valve is connected with fuel manifold has been arranged in parallel pressure gage valve and pressure gauge.
2.
according to claimthe air tightness tester of a kind of combustion chamber burner described in 1, is characterized in that: filling in described gas bomb is nitrogen.
3. adopt the air tightness tester of combustion chamber burner according to claim 1 combustion chamber burner to be carried out to the method for tightness test, it is characterized in that: concrete steps are as follows:
1. main chamber is decomposed into cell cube state, the fuel manifold namely on main chamber and fuel nozzle do not decompose, and to fuel manifold and fuel nozzle visual examination, confirm on fuel manifold and fuel nozzle without fracture or crackle;
2. the fuel manifold of pair band fuel nozzle carries out air seal pressure test;
2.1 pairs of fuel manifold fuel inlet neck places clean, and ensure interface inclusion-free;
2.2 check whether fuel nozzle has clamping stagnation:
The pipeline air tightness tester of above-mentioned combustion chamber burner being connected gas bomb connects the fuel manifold of main chamber, by level pressure valve open, then total pressure valve is opened, check stagnation pressure meter reading, gaseous tension is elevated to certain pressure value fast, after keeping a period of time, as stagnation pressure meter reading is stablized, then can judge that fuel nozzle is unimpeded without clamping stagnation, fast by stagnation pressure valve closing, make Pressure Drop most 0;
The impermeability of 2.3 inspection fuel nozzles:
Pressure gage valve is opened, then total pressure valve is slowly opened, viewing pressure gauge, slowly pressure is elevated to certain pressure value, when sealing load meter reading arrives the mxm. of setting, by level pressure valve closing, keep a period of time, during this period of time, sealing load gauge pressure values reading is not less than the minimum of setting, then can judge that fuel nozzle impermeability is good; If check, sealing load gauge pressure values reading is lower than the minimum of setting, then exist seepage in the fuel nozzle on main chamber, need fuel nozzle to dismantle from main chamber, carry out airtight test to single-nozzle.
4.
according to claimmethod described in 3, is characterized in that: in described step 2.2, gaseous tension is increased to 1-1.38mpa by 0 fast, and keeps more than 3 seconds.
5.
according to claimmethod described in 3, is characterized in that: in described step 2.3, gas is risen to 0.104mpa by pressure is raised 0, and keep 2 minutes.
6.
according to claimmethod described in 3, is characterized in that: the mxm. of the setting described in described step 2.3 is 0.104mpa; The minimum of described setting is 0.09mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726111.5A CN105403370B (en) | 2015-10-30 | 2015-10-30 | The air tightness tester and method of a kind of combustion chamber burner |
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| CN201510726111.5A CN105403370B (en) | 2015-10-30 | 2015-10-30 | The air tightness tester and method of a kind of combustion chamber burner |
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| CN105403370A true CN105403370A (en) | 2016-03-16 |
| CN105403370B CN105403370B (en) | 2018-01-02 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402125A (en) * | 2017-07-21 | 2017-11-28 | 中国第汽车股份有限公司 | The online test method of natural gas engine gas nozzle clamping stagnation |
| CN107560800A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel nozzle sealing property multi-function test stand and its test method |
| CN107843416A (en) * | 2017-09-28 | 2018-03-27 | 中国航发动力股份有限公司 | A kind of Aviation Fuel nozzle string oil detection method |
| CN107870066A (en) * | 2017-11-10 | 2018-04-03 | 中国航发贵州黎阳航空动力有限公司 | Fuel manifold Thermal Transient Sealing Test device |
| CN107884132A (en) * | 2017-11-10 | 2018-04-06 | 中国航发贵州黎阳航空动力有限公司 | Fuel manifold Thermal Transient Sealing Test method |
| CN112697352A (en) * | 2020-12-16 | 2021-04-23 | 陕西航空电气有限责任公司 | Ignition electric nozzle air tightness detection device and method |
| 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 |
| CN115479733A (en) * | 2021-06-15 | 2022-12-16 | 嘉兴海拉灯具有限公司 | Device and method for detecting air tightness of car lamp |
| CN115791003A (en) * | 2023-01-10 | 2023-03-14 | 西安成立航空制造有限公司 | Equipment and method for detecting fuel nozzle of aircraft engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107560800A (en) * | 2017-05-24 | 2018-01-09 | 天津成立航空技术有限公司 | A kind of fuel nozzle sealing property multi-function test stand and its test method |
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| CN107843416A (en) * | 2017-09-28 | 2018-03-27 | 中国航发动力股份有限公司 | A kind of Aviation Fuel nozzle string oil detection method |
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| CN107870066B (en) * | 2017-11-10 | 2020-05-05 | 中国航发贵州黎阳航空动力有限公司 | Fuel manifold thermal state sealing test device |
| CN107870066A (en) * | 2017-11-10 | 2018-04-03 | 中国航发贵州黎阳航空动力有限公司 | Fuel manifold Thermal Transient Sealing Test device |
| CN112697352A (en) * | 2020-12-16 | 2021-04-23 | 陕西航空电气有限责任公司 | Ignition electric nozzle air tightness detection device and method |
| CN112697352B (en) * | 2020-12-16 | 2023-07-07 | 陕西航空电气有限责任公司 | Ignition electric nozzle air tightness detection device and method |
| 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 |
| CN115479733A (en) * | 2021-06-15 | 2022-12-16 | 嘉兴海拉灯具有限公司 | Device and method for detecting air tightness of car lamp |
| CN115791003A (en) * | 2023-01-10 | 2023-03-14 | 西安成立航空制造有限公司 | Equipment and method for detecting fuel nozzle of aircraft engine |
| CN115791003B (en) * | 2023-01-10 | 2023-04-14 | 西安成立航空制造有限公司 | Equipment and method for detecting fuel nozzle of aircraft engine |
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| CN105403370B (en) | 2018-01-02 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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