CN107846740A - Heater for fuel manifold Thermal Transient Sealing Test - Google Patents
Heater for fuel manifold Thermal Transient Sealing Test Download PDFInfo
- Publication number
- CN107846740A CN107846740A CN201711102148.6A CN201711102148A CN107846740A CN 107846740 A CN107846740 A CN 107846740A CN 201711102148 A CN201711102148 A CN 201711102148A CN 107846740 A CN107846740 A CN 107846740A
- Authority
- CN
- China
- Prior art keywords
- coil
- fuel manifold
- induction coil
- annular
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/44—Coil arrangements having more than one coil or coil segment
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses the heater for fuel manifold Thermal Transient Sealing Test, including induction coil and the device for changing coil flux amount of induction coil lower section setting for heated fuel oil house steward's nozzle；The induction coil includes multiple coil units connected along fuel manifold circumferencial direction, the circular flat single-turn circular coil that the hollow copper pipe bending that coil unit is one forms；The device for changing coil flux amount can be along the copper part lifted perpendicular to coil plane direction for one.Nozzle quickly can be heated to assigned temperature by the present invention, while ensure the uniform uniformity of each nozzle heating-up temperature, Pass Test requirement of the present invention, can smoothly test the Thermal Sealing performance of fuel manifold nozzle weld, experiment process control, safety.
Description
Technical field
The present invention relates to the heater of the weld seam seal tightness test, particularly seal tightness test of fuel manifold.
Background technology
As shown in figure 1, certain novel fuel house steward is whole welding type structure, by ring main and nozzle assembly, (spout revolves
Stream device, the spout with gas hood, cyclone, secondary oily filter) etc. amount to the weldering of 235 part groups and form, more (about 220 argons in welding position
Arc weld and 148 soldered seams), it is that the double spouts of double oil circuits are parallel by 24 nozzles (1#~24#) being welded to form
Swirl atomizer；Power resources of the fuel manifold as engine, its performance reliability are extremely important；And the h type engine h fuel oil is total
Each nozzle uses welding structure (see Fig. 1, Fig. 2) on pipe, and fuel manifold is in normal work, nozzle experience high temperature, and welds
Connect the sealing reliability at place it is necessary that.
According to design requirement, Thermal Sealing experiment need to be carried out to fuel manifold, i.e.,：Major-minor oil circuit is provided with certain pressure
Fuel oil, nozzle exterior is heated to more than 400 DEG C, during more than 50 DEG C of internal temperature, checks the sealing of commissure, do not allow to ooze
Leakage.Because of the existing experimental rig without this aspect in the country, therefore, urgent need establishes test battery device, both meets test requirements document, shuts out simultaneously
The generation of exhausted potential safety hazard, as the heater in experimental rig, its type selecting and arrangement form are extremely crucial.
The content of the invention
The technical problem to be solved in the present invention is：Heater for fuel manifold Thermal Transient Sealing Test is provided, it is ensured that
Complete certain novel fuel house steward Thermal Sealing experiment, be particularly able to ensure that 24 nozzles heating-up temperature uniformity and uniformly
The heater of property.
Technical scheme is as follows：
For the heater of fuel manifold Thermal Transient Sealing Test, including the induction coil for heated fuel oil house steward's nozzle
With the device for changing coil flux amount set below induction coil；
The induction coil includes multiple coil units connected along fuel manifold circumferencial direction, and coil unit is one
The circular flat single-turn circular coil that forms of hollow copper pipe bending；
The device for changing coil flux amount can be along the copper part lifted perpendicular to coil plane direction for one.
The induction coil rectangular cross-section section.
The induction coil is two coils being arranged symmetrically in the same plane.
The copper part is the annular copper sheathing that is connected with collection tube road outer surface thread, at the annular knurl of annular copper sheathing outer surface
Reason.
The annular diameters of the annular copper sheathing are less than the inner ring diameter of coil unit, and the outer annular diameter of annular copper sheathing is more than line
The race diameter of coil unit.
The annular copper sheathing and coil unit are coaxial.
The present invention combines the design feature of fuel manifold, i.e. house steward is in annular, thereon uniform 24 nozzles, therefore selects
Induction coil be multistation coil, the corresponding nozzle of each induction coil assembly, adjustable coil magnetic is set below nozzle
The device of flux, as the equipment of heated nozzle to assigned temperature, avoid between each nozzle because fuel pressure, flow, position etc. because
Excessive temperature differentials when plain difference causes 12 nozzles while heated, it is impossible to once simultaneously carry out 12 nozzles experimental observation (if
The design of a set of independent induction coil is corresponded to using a nozzle, testing equipment will be extremely complex, and space hold is big, and two lines
Circle coordinates the mode of individual fine tuning flux devices to reduce equipment complexity).
The present invention has filled up certain Novel welding type fuel manifold in the hot lower equipment blank for carrying out leak check.
Brief description of the drawings
Fig. 1 is fuel manifold structural representation；
Fig. 2 is nozzle welding schematic diagram；
Fig. 3 is experimental rig structure principle chart；
Fig. 4 is induction coil magnetic flux amount adjusting apparatus principle schematic；
Fig. 5 is induction coil configuration schematic diagram.
Embodiment
Fuel manifold Thermal Transient Sealing Test device of the present invention is described in detail below in conjunction with the accompanying drawings.
Fuel manifold Thermal Sealing experimental rig, including for laying the airtight cavity of fuel manifold, it is useful in cavity
In the testboard of installation fuel manifold.The induction coil for heated fuel oil house steward's nozzle weld is provided with airtight cavity,
Induction coil and induction coil power supply use water cooling；Airtight cavity is connected with two nitrogen pipelines, and is set in airtight cavity
There is oxygen concentration sensor；Fuel manifold connects with fuel feeding and collection tube road, for supplying fuel oil and recovery fuel oil to it.
As shown in figure 3, testboard primary structure includes the first thermal insulation board 1, tested fuel manifold 6 be placed on first every
The top of hot plate 1, nozzle segment are located at the lower section of the first thermal insulation board 1, and each nozzle corresponds to a coil unit of induction coil 2,
A heating micromatic setting 5 (the i.e. axis of the axis of coil unit and micromatic setting 5 is corresponding with immediately below each coil unit
Collinearly), it is the second thermal insulation board 3 to heat the lower section of micromatic setting 5, and the lower section of the second thermal insulation board 3 is supporting plate 4, and supporting plate 4 is used to fix
Oil collector 7, that is, reclaim the pipeline of fuel manifold fuel oil.
As shown in figure 5, be induction coil configuration, including two semicirculars, the circumferential length of every coil about 1/2,
Every coil has been connected 12 coil units, and 12 coil units are by being equally that the copper pipe being circumferentially distributed realizes water cooling
(copper pipe of excircle in Fig. 5).Each coil unit is that the hollow copper pipe bending of a square-section forms, and profile is in circle
Shape, and be plane single-turn circular coil (i.e. coil unit upper and lower surface is parallel).
As shown in figure 4, be the heating micromatic setting for finely tuning induction coil magnetic flux, micromatic setting be substantially one piece can
Along the annular copper sheathing of collection tube road adjustable height, coordinated by the screw thread of its inwall and the outer surface thread of collection tube and receiving oil
Moved on pipeline, annular copper sheathing and coil unit are coaxial, finally influence the magnetic flux of its top coil unit, finely tune adding for nozzle
Hot temperature.The annular diameters of annular copper sheathing are less than inner ring diameter (throwing of the inner ring of i.e. annular copper sheathing in horizontal plane of coil unit
Shadow is located in the projection of coil unit inner ring), the outer annular diameter of annular copper sheathing is more than the race diameter of coil unit.
Nitrogen pipeline is divided into two, wherein the first nitrogen pipeline is to be used to be passed through nitrogen before testing, in order to exclude annular seal space
Interior air, the second nitrogen pipeline are used to prevent from leading under oil condition, and mist of oil diffuses to seal cavity, causes oil mist concentration high, goes out
Existing safety issue.
Nozzle exterior and inside need to be heated to different temperatures by fuel manifold Thermal Transient Sealing Test, and note state 1 is outside nozzle
Portion's temperature is T1, internal temperature T2, and T1>T2, note state 2 are that nozzle exterior temperature is T3, internal temperature T4, and T3>
T4, wherein, T1 ≠ T3, T2 ≠ T4, T1, T3>400 DEG C, T2, T4>50℃.
Concrete implementation process is as follows：
1) preparation and standard calibration before experiment
Work step 1, the machinery to experimental rig, instrument and electric part check that instrument, instrument are being examined
In fixed cycle；
Work step 2, after regular fuel house steward is installed on house steward's testboard in airtight cavity, start induction coil cooling
Cooled down with induction coil power supply, observe cooling water pressure；
Work step 3, start feeling answer coil high-frequency power supply, observe magnitude of voltage；
Work step 4, start the first nitrogen pipeline, observe nitrogen flow, while observe oxygen density value；
After work step 5, oxygen density value are less than less than 6%, start the second nitrogen pipeline, nitrogen flow and the first nitrogen pipeline
(closing the first nitrogen pipeline) identical during ventilation；
Work step 6, start fuel oil pump group to house steward's fuel feeding, the pressure value of pressure regulation to state 1, start high frequency electric source heating, delay
Slow regulation heat potentiometer, until displays temperature reaches the temperature of the requirement of state 1, and maintains 1min.
Work step 7, slowly regulation heat potentiometer, stop heating；
Work step 8, when nozzle surface temperature display is less than assigned temperature, record temperature fall time simultaneously close oil feed pump, stop
Fuel feeding, first and second road nitrogen is closed, close water cooling loop；
Work step 9, said process is repeated, standard manifold is tested by the requirement of state 2；
Work step 10, the respectively calorie value of the heating under record above two state and temperature-fall period time；
Note：When carrying out work step 6, if individual nozzles heating-up temperature is unsatisfactory for requiring, carries out, stop by work step 7, work step 8
After only heating, magnetic flux is changed come after changing heating-up temperature by the micromatic setting of corresponding nozzle position in adjustment equipment, then
Repeat above-mentioned 1~10 work step.
2) product testing:
1st, to the experiment of fuel manifold trystate 1：
1. after test house steward is installed on house steward's testboard in airtight cavity, actuating coil cooling and power supply cooling,
Observation cooling water pressure meets the requirement of work step 2；
2. starting high frequency electric source, observation magnitude of voltage should meet the requirement of work step 3；
3. starting the first nitrogen pipeline, observation flow meets the requirement of work step 4, while observes oxygen density value；
4. after oxygen density value is less than less than 6%, start the second nitrogen pipeline, flow value meets the requirement of work step 5；⑤
Start fuel oil pump group, adjust the pressure of fuel oil to the pressure value of state 1, start high frequency electric source heating, start and adjust peephole
Rotary speed is in order to observing；
6. selecting to heat 1#~12# nozzles, heat potentiometer is slowly adjusted, heating voltage and electric current is met mark
Quasi- part after in stable condition 10s~20s, continues 1min, records time started t1 and end time in the required value of state 1
t2。
7. slowly regulation heat potentiometer, stop heating；
8. when nozzle surface temperature display is less than 35 DEG C, oil feed pump is closed, fuel cut-off, closes first and second nitrogen
Pipeline, close water cooling loop.
9. adjustment shooting playback duration, observe t1~t2 period heating mains position while welding whether oil leak；If (oil leak
Spurting mist of oil occurs).
Upper 13#~24# nozzles the heating of house steward is repeated the above steps, and sees whether oil leak.
2nd, to the experiment of fuel manifold trystate 2：
1. after test house steward is installed on house steward's testboard in airtight cavity, actuating coil cooling and power supply cooling,
Observation cooling water pressure meets the requirement of work step 2；
2. starting high frequency electric source, observation magnitude of voltage should meet the requirement of work step 3；
3. starting the first nitrogen pipeline, observation flow meets the requirement of work step 4, while observes oxygen density value；
4. after oxygen density value is less than less than 6%, start the second nitrogen pipeline, flow value meets the requirement of work step 5；
5. starting fuel oil pump group, the pressure of fuel oil is adjusted to the pressure value of state 2, starts high frequency electric source heating, starts simultaneously
Peephole rotary speed is adjusted in order to observe；
6. selecting to heat 1#~12# nozzles, heat potentiometer is slowly adjusted, heating voltage and electric current is met mark
Quasi- part after in stable condition 10s~20s, continues 1min, records time started t3 and end time in the required value of state 2
t4。
7. slowly regulation heat potentiometer, stop heating；
8. when nozzle surface temperature display is less than 35 DEG C, oil feed pump is closed, fuel cut-off, closes first and second nitrogen
Pipeline, close water cooling loop.
9. adjustment shooting playback duration, observe t3~t4 period heating mains position while welding whether oil leak；If (oil leak
Spurting mist of oil occurs).
Upper 13#~24# nozzles the heating of house steward is repeated the above steps, and sees whether oil leak.
Pay attention to：1st, in whole heating process, it is necessary to assure oxygen concentration is less than 6%, and jerk is pressed immediately if exceeding
Button, arrestment；
2nd, ensure that nitrogen stream value is not less than the flow value that regular fuel house steward determines in heating process, if exceeding immediately
Press scram button, arrestment.
Claims (6)
1. the heater for fuel manifold Thermal Transient Sealing Test, it is characterised in that：Including for heated fuel oil house steward's nozzle
Induction coil and induction coil below set the device for changing coil flux amount；
The induction coil includes multiple coil units connected along fuel manifold circumferencial direction, and coil unit is in one
The circular flat single-turn circular coil that empty copper pipe bending forms；
The device for changing coil flux amount can be along the copper part lifted perpendicular to coil plane direction for one.
2. the heater according to claim 1 for fuel manifold Thermal Transient Sealing Test, it is characterised in that：
The induction coil rectangular cross-section section.
3. the heater according to claim 1 for fuel manifold Thermal Transient Sealing Test, it is characterised in that：
The induction coil is two coils being arranged symmetrically in the same plane.
4. the heater according to claim 1 for fuel manifold Thermal Transient Sealing Test, it is characterised in that：
The copper part is the annular copper sheathing being connected with collection tube road outer surface thread, and annular copper sheathing outer surface annular knurl is handled.
5. the heater according to claim 4 for fuel manifold Thermal Transient Sealing Test, it is characterised in that：
The annular diameters of the annular copper sheathing are less than the inner ring diameter of coil unit, and the outer annular diameter of annular copper sheathing is more than coil list
The race diameter of member.
6. the heater according to claim 4 for fuel manifold Thermal Transient Sealing Test, it is characterised in that：
The annular copper sheathing and coil unit are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102148.6A CN107846740B (en) | 2017-11-10 | 2017-11-10 | Heating device for thermal state sealing test of fuel oil main pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102148.6A CN107846740B (en) | 2017-11-10 | 2017-11-10 | Heating device for thermal state sealing test of fuel oil main pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107846740A true CN107846740A (en) | 2018-03-27 |
| CN107846740B CN107846740B (en) | 2021-02-23 |
Family
ID=61680947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711102148.6A Active CN107846740B (en) | 2017-11-10 | 2017-11-10 | Heating device for thermal state sealing test of fuel oil main pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107846740B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619691A (en) * | 2009-08-14 | 2010-01-06 | 景县龙凤氟塑管业有限公司 | Preheating fuel pipe of diesel engine |
| CN101803453A (en) * | 2007-07-26 | 2010-08-11 | 泽奈基电力公司 | Induction heating method |
| TW201126868A (en) * | 2010-01-22 | 2011-08-01 | Houly Co Ltd | High power-to-volume ratio generator |
| CN102869140A (en) * | 2011-07-04 | 2013-01-09 | 东芝三菱电机产业系统株式会社 | Induction heating apparatus |
| CN205051901U (en) * | 2015-11-05 | 2016-02-24 | 贵州黎阳装备科技发展有限公司 | High frequency induction heating encloses and is used for high frequency induction heating device of nozzle part |
| CN105556810A (en) * | 2013-09-17 | 2016-05-04 | 丰田自动车株式会社 | Rotor core heating device and rotor core shrink-fitting method |
-
2017
- 2017-11-10 CN CN201711102148.6A patent/CN107846740B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803453A (en) * | 2007-07-26 | 2010-08-11 | 泽奈基电力公司 | Induction heating method |
| CN101619691A (en) * | 2009-08-14 | 2010-01-06 | 景县龙凤氟塑管业有限公司 | Preheating fuel pipe of diesel engine |
| TW201126868A (en) * | 2010-01-22 | 2011-08-01 | Houly Co Ltd | High power-to-volume ratio generator |
| CN102869140A (en) * | 2011-07-04 | 2013-01-09 | 东芝三菱电机产业系统株式会社 | Induction heating apparatus |
| CN105556810A (en) * | 2013-09-17 | 2016-05-04 | 丰田自动车株式会社 | Rotor core heating device and rotor core shrink-fitting method |
| CN205051901U (en) * | 2015-11-05 | 2016-02-24 | 贵州黎阳装备科技发展有限公司 | High frequency induction heating encloses and is used for high frequency induction heating device of nozzle part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107846740B (en) | 2021-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107870066A (en) | Fuel manifold Thermal Transient Sealing Test device | |
| CN104458199B (en) | Hypersonic wind tunnel air flow stabilizing device | |
| CN103551692B (en) | A kind of elongated embedded sleeve pipe pipe end method for welding | |
| CN103480935A (en) | Rotary compressor welding fixture, rotary compressor and rotary compressor manufacturing method | |
| CN108022712A (en) | The distributed electric current of large-scale superconducting Tokamak magnet and cold matter transmission feeder | |
| CN107846740A (en) | Heater for fuel manifold Thermal Transient Sealing Test | |
| CN109298016B (en) | Experimental device for simulating iron layer of blast furnace hearth | |
| CN107884132A (en) | Fuel manifold Thermal Transient Sealing Test method | |
| CN104191069A (en) | Manufacturing process of smoke waste heat exchanger for radiant tube burner | |
| CN106596150A (en) | Two-cabin test connection system suitable for combined vacuum thermal test of spacecraft and antenna | |
| CN212871941U (en) | Cold trap for gas flow heating explanation | |
| PL227290B1 (en) | Method for automatic submerged arc welding on the cone of the insert of the nozzle of large size | |
| CN107877874A (en) | A kind of heat radiating type ceramic honeycomb panel heat welded device | |
| CN104602429A (en) | Warm plasma generator | |
| WO2020052201A1 (en) | Degassing pipeline for cable | |
| CN202240247U (en) | Assembling and locating device for multihead film type lead-out connecting tubes | |
| CN207178871U (en) | A kind of accurate temperature-controlling water faucet | |
| CN108480812A (en) | A kind of pipeline induction brazing device and welding procedure | |
| CN106444889B (en) | A kind of high pressure orifice plate gas stagnation temperature control device and method | |
| CN209507984U (en) | A kind of feeding pipeline waste heat recovery device for glassware melting furnace | |
| WO2021072814A1 (en) | Oxygen-enriched sintering flue gas circulation system and application thereof | |
| CN207180370U (en) | A kind of composite multi-component self-cooled melting spray gun | |
| CN205834455U (en) | A kind of automatic welding heating device | |
| CN215724162U (en) | External liquid nitrogen tank heating device | |
| CN218202520U (en) | Air supply device and kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |