CN105134385B - Expansion-type ignition electric nozzle assembly - Google Patents
Expansion-type ignition electric nozzle assembly Download PDFInfo
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- CN105134385B CN105134385B CN201510591783.XA CN201510591783A CN105134385B CN 105134385 B CN105134385 B CN 105134385B CN 201510591783 A CN201510591783 A CN 201510591783A CN 105134385 B CN105134385 B CN 105134385B
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- electric nozzle
- ignition electric
- pressure
- flange
- ignition
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Abstract
The invention relates to the field of a dry low-emission combustion chamber, and particularly relates to an expansion-type ignition electric nozzle assembly so as to solve the problem that a conventional electric nozzle assembly does not has the capability of reignition and can not meet operating requirements of gas turbines. The expansion-type ignition electric nozzle assembly comprises an ignition electric nozzle, a mounting flange, a supporting barrel, a piston, a supported flange, a pressure regulating pipeline, a pressure increasing valve and a pressure relief valve, wherein the ignition electric nozzle is arranged in a cavity of the supporting barrel through a spring in an expansion manner; the pressure regulating pipeline is used for connecting the inner cavity and an outer cavity and is also provided with a branch line for connecting the inner cavity and the outside world; the pressure increasing valve is arranged on the pressure regulating pipeline; and the pressure relief valve is arranged on the branch line of the pressure regulating pipeline. The expansion-type ignition electric nozzle assembly can complete ignition in the state of starting ignition, can also complete reignition by controlling the opening and closing of the pressure increasing valve and the pressure relief valve at a high pressure under heavy working conditions, realizes switching among combustion zones and can meet operating requirements of most mature gas turbines.
Description
Technical field
The present invention relates to dry low emission combustor field, and in particular to a kind of telescopic ignition electric nozzle component.
Background technology
In recent years, control of the country to air pollution is more paid attention to, and national legislation is limited the NOx emission of gas turbine
It is further strict, it is to reduce NOx emission, it is indoor using lean premixed combustion technology in burning, and be to solve to be fired during starting ignition
Room oil gas equivalent is burnt than a low difficult problem, using grading combustion technology, i.e., solve starting ignition using the switching between combustion zone
With at full capacity between contradiction, realize low emission.
Combustion chamber starting ignition needs ignition electric nozzle to strike sparks, and is shown according to combustion engine operation result, and ignition electric nozzle is put for a long time
Easily occur ablation phenomen in combustion zone, destroy ignition electric nozzle, therefore it is required that ignition electric nozzle can possess retractility, in igniting
Commitment positions are stretched into, completes to be retracted after igniting, depart from combustion zone；Require that ignition electric nozzle can be provided with various pressures simultaneously
Retractility, to adapt to various operating modes under igniting.Existing telescopic ignition electric nozzle is only capable of accomplishing have under starting ignition state
Standby retractility, after the completion of starting ignition, ignition electric nozzle contracts from combustion zone, does not possess ignition ability again, it is impossible to it is enough adapt to part into
The work requirements of ripe combustion engine.
The content of the invention
It is an object of the invention to provide a kind of telescopic ignition electric nozzle component, does not possess again to solve current thermoelectricity nozzle assembly
Ignition ability, it is impossible to adapt to the problem of the work requirements of combustion engine.
The technical scheme is that：
A kind of telescopic ignition electric nozzle component, including：
Ignition electric nozzle；
Mounting flange, for ignition electric nozzle to be arranged on into design attitude, the mounting flange center offers through hole,
Be formed as exocoel in the through hole；
Cylinder, one end sealing is supported to be set on mounting flange, the support cylinder has inner chamber, and the ignition electric nozzle leads to
Cross telescopic spring to be arranged in the inner chamber, one end of the ignition electric nozzle passes through the exocoel of the mounting flange；
Piston, is sealingly disposed between the inner chamber of the support cylinder and the exocoel of the mounting flange, the ignition power
One end of mouth sequentially passes through the piston and the exocoel；
Supported flange, is sealingly disposed in the other end of the support cylinder；
Pressure regulation pipeline, for connecting the inner chamber and the exocoel, meanwhile, being additionally provided with the pressure regulation pipeline will be described
The branch road that inner chamber is in communication with the outside；
Pressure charging valve, is arranged on the pressure regulation pipeline, for balancing the pressure between the inner chamber and the exocoel；
Pressure-relief valve, is arranged on the branch road of the pressure regulation pipeline, for balancing the pressure between the inner chamber and the external world.
Alternatively, connected using welding manner between the mounting flange, supported flange and support cylinder.
Alternatively, the pressure charging valve and pressure-relief valve are electric switching valve.
Alternatively, there is one of boss, described pressure regulation tube outlet to be located in boss for the mounting flange bottom.
Alternatively, the supported flange includes the upper supported flange being fixedly connected and lower supported flange.
Alternatively, it is with bolts between the upper supported flange and lower supported flange.
Alternatively, described telescopic ignition electric nozzle component also includes：
Pad, is sealingly disposed between the upper supported flange and the lower supported flange.
Beneficial effects of the present invention：
The telescopic ignition electric nozzle component of the present invention can make ignition electric nozzle stretch into, contract from combustion zone by spring, so as to
Ensure the life-span of ignition electric nozzle；Simultaneously the ignition electric nozzle can not only complete sparking under starting ignition state, can be with big work
Complete to light a fire again by controlling the switch of pressure charging valve and pressure-relief valve under condition, high pressure, realize the switching between combustion zone, overcome
The difficult problem that existing telescopic ignition electric nozzle is applied under big operating mode, can adapt to the work requirements of most maturation combustion engine.
Description of the drawings
Fig. 1 is the simplification view in the section of the telescopic ignition electric nozzle component of prior art gas turbine；
Fig. 2 is the simplification view in the section of the telescopic ignition electric nozzle component of gas turbine of the present invention.
Reference：
Telescopic ignition electric nozzle component 40；
Ignition electric nozzle 41；
Mounting flange 42；
Inner chamber 43；
Exocoel 44；
Spring 45；
Piston 46；
Support cylinder 47；
Upper supported flange 48；
Support stick 19
Sealing gasket 20
Lower supported flange 49
Pad 50
Pressure charging valve 51
Pressure-relief valve 52
Pressure regulation pipeline 53
Boss 54.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.
With reference to shown in Fig. 1, the telescopic ignition electric nozzle component 40 of existing gas turbine, the telescopic igniting are show generally
Sparking plug component 40, including ignition electric nozzle 41；Mounting flange 42, for ignition electric nozzle 41 to be arranged on into design attitude；Inner chamber 43；Outward
Chamber 44；Spring 45, for making retractility of the ignition electric nozzle 41 under with different pressures；Piston 46, for by inner chamber 43 with it is outer
Chamber 44 separates, and prevents inner chamber 43 from mutually revealing with the air in exocoel 44；Cylinder 47 is supported, for accommodating ignition electric nozzle 41, bullet
Spring 45 and piston 46；Upper supported flange 48, the compression for inner chamber 43 and exocoel 44 is sealed；Support stick 49, in inner chamber 43
Seal with the compression of exocoel 44, and be convenient to the dismounting of telescopic ignition electric nozzle component 40；Sealing gasket 20, is placed in supported flange
48 with support the interface of cylinder 47 at, mounting flange 42 with support the interface of cylinder 47 at, it is close with exocoel 44 for inner chamber 43
Envelope.Support stick 19 and upper supported flange 48, mounting flange 42, will support cylinders about 47 by fastening thread using be threadedly coupled
End face is pressed on respectively on supported flange 48, mounting flange 42, and realizes that inner chamber 43 is close with exocoel 44 by sealing gasket 20
Envelope, while screw connection structure can facilitate the dismounting of telescopic ignition electric nozzle component 40.
Under starting ignition state, the pressure of exocoel 44 is relatively low, and spring 45 can be pressed in ignition electric nozzle 41 by its own resilient
On mounting flange 42, ignition electric nozzle 41 stretches into commitment positions；After igniting success, the pressure of exocoel 44 increases, and pressure differential power is more than
The elastic force of spring 45, ignition electric nozzle 41 is retracted, and departs from combustion zone, it is ensured that the life-span of ignition electric nozzle 41.
But, above-mentioned telescopic ignition electric nozzle 41 is only capable of accomplishing possess retractility, starting point under starting ignition state
After the completion of fire, ignition electric nozzle 41 contracts from combustion zone, does not possess ignition ability again, it is impossible to which enough adapting to the work of Partial mature combustion engine needs
Ask
With reference to shown in Fig. 2, the telescopic ignition electric nozzle component 40 of the embodiment of the present invention includes：Ignition electric nozzle 41；Method for Installation
Blue 42, for ignition electric nozzle 41 to be arranged on into design attitude, the center of mounting flange 42 offers through hole, is formed as in through hole
Exocoel 44；Support cylinder 47, one end (bottom in Fig. 1) sealing to be set on mounting flange 42, support cylinder 47 that there is inner chamber 43,
Ignition electric nozzle 41 is arranged in inner chamber 43 by the way that spring 45 is flexible, and one end of ignition electric nozzle 41 passes through the exocoel of mounting flange 42
44, wherein, spring 45 is used to make retractility of the ignition electric nozzle 41 under with different pressures.
The telescopic ignition electric nozzle component 40 of the present invention also includes：Piston 46, is sealingly disposed in the inner chamber for supporting cylinder 47
Between 43 and the exocoel 44 of mounting flange 42, one end of ignition electric nozzle 41 sequentially passes through piston 46 and exocoel 44, and piston 46 is used for
Inner chamber 43 is separated with exocoel 44, prevents inner chamber 43 from mutually revealing with the air in exocoel 44；Supported flange, is sealingly disposed in and props up
The other end (top in Fig. 1) of support cylinder 47, supported flange can include the He of upper supported flange 48 being from top to bottom fixedly connected
Lower supported flange 49, is used to compress and seal support cylinder 43.
The telescopic ignition electric nozzle component 40 of the present invention also includes：Pad 50, for upper supported flange 48 and lower compression method
Seal between blue 49, improve sealing property；Pressure regulation pipeline 53, for connecting inner chamber 43 and exocoel 44, meanwhile, on pressure regulation pipeline 53
It is additionally provided with the branch road that inner chamber 43 is in communication with the outside；Pressure charging valve 51, is arranged on pressure regulation pipeline 53, for balance inner chamber 43 with
Pressure between exocoel 44, so as to control at various pressures flexible of ignition electric nozzle 41；Pressure-relief valve 52, is arranged on pressure regulation pipeline
On 53 branch road, for balancing the pressure between inner chamber 43 and the external world, so as to control the stretching at various pressures of ignition electric nozzle 41
Contracting.Further, in the present embodiment, preferred pressure charging valve 51 is the more stable electric switching valve of performance with pressure-relief valve 52.
Between upper supported flange 48 and lower supported flange 49 can with using it is various it is suitable by the way of be fixedly connected, the present embodiment
In, preferably take screw threads for fastening to connect, and the sealing of inner chamber 43 is ensured by compress gasket 50, can be easy to using threaded connection
The dismounting of ignition electric nozzle 41 and adjustment.
Further, in telescopic ignition electric nozzle component 40 of the invention, cylinder 43 and lower supported flange 49, Method for Installation are supported
Preferably adopt between blue 42 and be welded and fixed, it is ensured that the sealing of inner chamber 43 and exocoel 44.The import of pressure regulation pipeline 53 and support cylinder 43
Welding a, outlet is welded with mounting flange 42, at boss 54, pressure charging valve 51 is installed before outlet, for inner chamber 43 and exocoel
44 pressure balance；Another outlet and atmosphere, install pressure-relief valve 52 before outlet, the pressure for inner chamber 43 and air is put down
Weighing apparatus.
Under the starting ignition state of telescopic ignition electric nozzle component 40 of the present invention, the pressure of exocoel 44 is relatively low, and spring 45 can
Ignition electric nozzle 41 is pressed on mounting flange 42 by its own resilient, ignition electric nozzle 41 stretches into commitment positions；After igniting success, outward
The pressure of chamber 44 increases, and pressure differential power is more than the elastic force of spring 45, and ignition electric nozzle 41 is retracted, and departs from combustion zone, it is ensured that ignition electric nozzle
Life-span 41；Again before fired state, ignition electric nozzle 41 is in retracted mode, then when lighting a fire, opens pressure charging valve 51, balance inner chamber 43 with
The pressure of exocoel 44, without pressure differential power, spring 45 is again pressed in ignition electric nozzle 41 on mounting flange 42 by its own resilient, point
Thermoelectricity mouth 41 stretches into commitment positions, after completing to light a fire again, closes pressure charging valve 51, opens pressure-relief valve 52, is reduced to the pressure of inner chamber 43
Atmospheric pressure, regenerates pressure differential power, and pressure differential power is more than the elastic force of spring 45, and ignition electric nozzle 41 is retracted, and departs from burning
Area, it is ensured that ignition electric nozzle life-span 41.
The telescopic ignition electric nozzle component 40 of the present invention can make ignition electric nozzle 41 stretch into, contract from burning by spring 45
Area, so as to ensure the life-span of ignition electric nozzle 41；Simultaneously the ignition electric nozzle 41 can not only complete sparking under starting ignition state, also
Can complete to light a fire again with the switch of pressure-relief valve 52 by controlling pressure charging valve 51 under big operating mode, high pressure, realize combustion zone
Between switching, overcome the difficult problem that telescopic ignition electric nozzle is applied under big operating mode, can adapt to most ripe combustions
The work requirements of machine.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (7)
1. a kind of telescopic ignition electric nozzle component, including：
Ignition electric nozzle (41)；
Mounting flange (42), for, installed in design attitude, mounting flange (42) center to be opened by ignition electric nozzle (41)
Through hole is provided with, exocoel (44) is formed as in the through hole；
Cylinder (47), one end sealing is supported to be set on mounting flange (42), support cylinder (47) is with inner chamber (43), institute
State ignition electric nozzle (41) to be arranged in the inner chamber (43) by the way that spring (45) is flexible, one end of the ignition electric nozzle (41) passes through
The exocoel (44) of the mounting flange (42)；
Piston (46), is sealingly disposed in the inner chamber (43) of support cylinder (47) and the exocoel (44) of the mounting flange (42)
Between, one end of the ignition electric nozzle (41) sequentially passes through the piston (46) and the exocoel (44)；
Supported flange, is sealingly disposed in the other end of support cylinder (47)；
Characterized in that, the ignition electric nozzle component also includes：
Pressure regulation pipeline (53), for connecting the inner chamber (43) and the exocoel (44), meanwhile, on the pressure regulation pipeline (53) also
It is provided with the branch road that the inner chamber (43) is in communication with the outside；
Pressure charging valve (51), is arranged on the pressure regulation pipeline (53), for balance the inner chamber (43) and the exocoel (44) it
Between pressure；
Pressure-relief valve (52), is arranged on the branch road of the pressure regulation pipeline (53), for balancing between the inner chamber (43) and the external world
Pressure.
2. telescopic ignition electric nozzle component according to claim 1, it is characterised in that the mounting flange (42), compress
Flange is connected between cylinder (47) with supporting using welding manner.
3. telescopic ignition electric nozzle component according to claim 1, it is characterised in that the pressure charging valve (51) and pressure-relief valve
(52) it is electric switching valve.
4. telescopic ignition electric nozzle component according to claim 1, it is characterised in that mounting flange (42) the bottom tool
There are one of boss (54), described pressure regulation pipeline (53) outlet to be located in boss (54).
5. telescopic ignition electric nozzle component according to claim 1, it is characterised in that the supported flange includes fixed company
The upper supported flange (48) for connecing and lower supported flange (49).
6. telescopic ignition electric nozzle component according to claim 5, it is characterised in that the upper supported flange (48) is with
It is with bolts between supported flange (49).
7. telescopic ignition electric nozzle component according to claim 5, it is characterised in that also include：
Pad (50), is sealingly disposed between the upper supported flange (48) and the lower supported flange (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591783.XA CN105134385B (en) | 2015-09-17 | 2015-09-17 | Expansion-type ignition electric nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591783.XA CN105134385B (en) | 2015-09-17 | 2015-09-17 | Expansion-type ignition electric nozzle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134385A CN105134385A (en) | 2015-12-09 |
| CN105134385B true CN105134385B (en) | 2017-04-19 |
Family
ID=54719910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510591783.XA Active CN105134385B (en) | 2015-09-17 | 2015-09-17 | Expansion-type ignition electric nozzle assembly |
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| Country | Link |
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| CN (1) | CN105134385B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056905B (en) * | 2018-01-19 | 2023-12-05 | 中国科学院工程热物理研究所 | Double-movable-sleeve positioning component and positioning method for electric nozzle and hot end component |
| CN109339953B (en) * | 2018-11-09 | 2021-05-25 | 天津航空机电有限公司 | Telescopic ignition electric nozzle |
| CN110905663B (en) * | 2019-12-05 | 2021-02-19 | 中国航发四川燃气涡轮研究院 | Ignition device through long-range pneumatic control |
| CN112412629B (en) * | 2020-11-27 | 2022-09-20 | 中国航发四川燃气涡轮研究院 | Adjustable telescopic automatic control igniter device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275559A (en) * | 1979-08-31 | 1981-06-30 | General Electric Company | Retractable igniter device for gas turbines |
| JPS57179338A (en) * | 1981-04-27 | 1982-11-04 | Hitachi Ltd | Igniting apparatus for gas turbine |
| US5442907A (en) * | 1994-04-04 | 1995-08-22 | Aero-Plasma, Inc. | Bootstrap re-ignition system for aircraft jet engine |
| EP1111219A2 (en) * | 1999-12-21 | 2001-06-27 | General Electric Company | Mounting an igniter in an augmenter |
| CN203586961U (en) * | 2013-11-29 | 2014-05-07 | 湖南浏阳焰火有限公司 | Micro-flame telescopic ignition device |
-
2015
- 2015-09-17 CN CN201510591783.XA patent/CN105134385B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4275559A (en) * | 1979-08-31 | 1981-06-30 | General Electric Company | Retractable igniter device for gas turbines |
| JPS57179338A (en) * | 1981-04-27 | 1982-11-04 | Hitachi Ltd | Igniting apparatus for gas turbine |
| US5442907A (en) * | 1994-04-04 | 1995-08-22 | Aero-Plasma, Inc. | Bootstrap re-ignition system for aircraft jet engine |
| EP1111219A2 (en) * | 1999-12-21 | 2001-06-27 | General Electric Company | Mounting an igniter in an augmenter |
| CN203586961U (en) * | 2013-11-29 | 2014-05-07 | 湖南浏阳焰火有限公司 | Micro-flame telescopic ignition device |
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| Publication number | Publication date |
|---|---|
| CN105134385A (en) | 2015-12-09 |
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