CN107044636B - A kind of vaporizer tube combustor fuel injection equipment (FIE) - Google Patents
A kind of vaporizer tube combustor fuel injection equipment (FIE) Download PDFInfo
- Publication number
- CN107044636B CN107044636B CN201710286263.7A CN201710286263A CN107044636B CN 107044636 B CN107044636 B CN 107044636B CN 201710286263 A CN201710286263 A CN 201710286263A CN 107044636 B CN107044636 B CN 107044636B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- fuel
- fuel injection
- restrictor ring
- mounting base
- 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.)
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Links
- 239000000446 fuel Substances 0.000 title claims abstract description 70
- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 239000006200 vaporizer Substances 0.000 title claims abstract description 15
- 239000000295 fuel oil Substances 0.000 claims abstract description 30
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 230000008020 evaporation Effects 0.000 claims abstract description 26
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 7
- 239000000411 inducer Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 239000000567 combustion gas Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
Abstract
The invention discloses a kind of vaporizer tube combustor fuel injection equipment (FIE)s, including nozzle mounting base, fuel nozzle and evaporation tube, a restrictor ring is set between the nozzle mounting base and fuel nozzle, throttle orifice is set at the top of restrictor ring, small size fuel injection hole is can effectively avoid to be directly exposed to block because of area carbon in combustion gas, and then influence the reliability of fuel injection equipment (FIE) and the safety of engine, stable operation, pass through the processing method and processing sequence of setting restrictor ring and nozzle simultaneously, it can effectively ensure that the consistency of circumferential several injection apparatus fuel flows, to improve the uniformity of combustor exit temperature field, the atomizing effect of fuel oil can be improved by the reasonable setting of evaporation tube effective length, fuel oil is effectively ensured fully to burn, reduce engine pollutant emission.
Description
Technical field
The present invention relates to a kind of fuel injection equipment (FIE)s being suitable for evaporating tubular type annular return combustion chamber, and in particular to application
In the Small Gas Turbine Engine with vaporizer tube combustor, current limliting and atomization, the fuel oil injection of high reliability are carried out to fuel oil
Device.
Background technology
Evaporation tube fuel oil spray and atomization structure due to it is simple in structure, at low cost, be suitable for small amount of fuel atomization
The features such as, the combustion chamber of many Small Gas Turbine Engines all uses the structure.
Since the fuel flow of Small Gas Turbine Engine is small, the degree of regulation in order to improve fuel flow must carry again
The injection pressure of high fuel oil, this results in the diameter of fuel nozzle too small, and is exposed in combustion gas, is easy to lead due to area carbon
It causes fuel injection hole to block and influences combustor exit temperature distribution, and then influence the safe and stable operation of engine.Work as fuel oil
When spray-hole is too small, the consistency of processing is also difficult to ensure, fuel manifold is caused to be required for carrying out bench test before installation,
Increase engine cost.
Invention content
For the above technical problem, the present invention is intended to provide a kind of vaporizer tube combustor fuel injection equipment (FIE), it can be effective
It avoids small hole size from being directly exposed in combustion gas, prevents smaller fuel injection hole from being blocked because of area carbon, and then influence combustion
The reliability of oil spurts device and the safe and stable operation of engine, while the processing side by the way that restrictor ring and nozzle is arranged
Formula and processing sequence can effectively ensure that the consistency of circumferential several injection apparatus fuel flows, combustor exit temperature can be improved
The uniformity of field, the atomizing effect of fuel oil can be improved by the setting of evaporation tube effective length, fuel oil is effectively ensured and fully burns,
Reduce engine pollutant emission.
The present invention is by the technical solution that realization its technical purpose is taken：
A kind of vaporizer tube combustor fuel injection equipment (FIE), including nozzle mounting base, restrictor ring, fuel nozzle and evaporation
Pipe, which is characterized in that
-- the nozzle mounting base includes installation end face and ladder mounting hole, and the nozzle mounting base installs end face by it
It fits on combustion box and is fixed by fastener and the combustion box, the ladder mounting hole of the nozzle mounting base
Middle setting restrictor ring, the apex cavity of ladder mounting hole are connected to external oil feed line；
-- the restrictor ring is in integrally the cylinder-like structure of one end open, including top and cylindrical portion, the restrictor ring
Top is resisted against on the step of the ladder mounting hole of the nozzle mounting base, and throttle orifice is arranged in the top center of the restrictor ring；
-- the fuel nozzle is internally provided with along its axially extending nozzle working connection, and head is provided with fuel oil injection
The end outer circumferential surface in hole, the fuel nozzle is equipped with step surface, step surface and institute of the fuel nozzle by its end
The end for stating restrictor ring cylindrical portion is fixedly connected, and the head portion of the fuel nozzle stretches into the inducer of evaporation tube；
Wherein,
The fuel oil in the nozzle mounting base ladder mounting hole, which is flowed into, from the external oil feed line passes through the throttle orifice,
The nozzle working connection is flowed into, then the evaporation tube is spurted into post type through the nozzle spray-hole, in the evaporation tube
Fuel oil is atomized under tube wall high temperature action, and misty fuel oil sprays into combustion chamber through evaporation tube both sides nozzle and participates in burning.
Preferably, the diameter D1 of the throttle orifice sprays flow needed for pressure difference and engine according to fuel oil and calculates acquisition,
The diameter D3 of the fuel injection hole is 1.1~1.5D1, and the internal diameter D2 of the nozzle working connection is 4~6D1.Due to combustion gas
The diameter of the fuel injection hole of contact is more than the diameter of throttle orifice, reduces the probability that fuel injection hole is blocked due to carbon distribution,
Improve the life and reliability of fuel nozzle.
Preferably, the ratio of the diameter D1 of the top thickness H1 and throttle orifice of the restrictor ring is less than 3.Therefore, throttle orifice
The mode that drilling or laser boring can be used is processed, it is ensured that the consistency in different throttle orifice apertures ensures each steaming
The consistency for sending out the fuel flow that pipe sprays reduces combustor exit temperature to ensure the consistency in combustion chamber circumferential direction temperature field
The inhomogeneities of field is spent, engine reliability of operation is improved.
Further, the distance H that fuel injection hole is exported to evaporation tube transverse axis is about 3~4D4, wherein D4 is to steam
Send out the internal diameter of pipe inducer.The distance can guarantee atomization distance and nebulisation time sufficient needed for fuel oil, and then can guarantee fuel oil
Fully burning and combustor exit temperature field are uniform.
Further, the restrictor ring is fixed on by vacuum brazing in the ladder mounting hole of nozzle mounting base.
Further, the step surface of the fuel nozzle end by way of argon arc welding with the restrictor ring cylindrical portion
End is fixedly connected.
Further, the processing sequence in the fuel injection equipment (FIE) between each component is, first, by restrictor ring vacuum
The mode of soldering is welded in cylindrical surface junction, is fixed in nozzle mounting base, is then reprocessed throttle orifice；Processing
After complete throttle orifice, argon arc welding welding is carried out using low current welding machine at node, nozzle is fixed on restrictor ring to be installed with nozzle
On the sub-assembly of seat.The processing method and processing sequence of restrictor ring and nozzle can be effectively prevent in welding process due to thermally expanding
And the shrinkage cavity phenomenon generated, ensure the consistency of circumferential several injection apparatus fuel flows, combustor exit temperature field can be improved
Uniformity.
Compared with the existing technology, vaporizer tube combustor fuel injection equipment (FIE) of the invention, can effectively avoid small hole size
It is directly exposed in combustion gas, prevents smaller fuel injection hole from being blocked because of area carbon, and then influence fuel injection equipment (FIE)
The safe and stable operation of reliability and engine, while processing method and processing sequence by the way that restrictor ring and nozzle is arranged,
The consistency that can effectively ensure that circumferential several injection apparatus fuel flows, can be improved the uniformity of combustor exit temperature field, lead to
The atomizing effect of fuel oil can be improved in the setting of pervaporation pipe effective length, can effectively ensure that fuel oil fully burns, and reduces engine
Pollutant emission.
Description of the drawings
Fig. 1 is the structural schematic diagram suitable for vaporizer tube combustor fuel injection equipment (FIE) of the present invention；
Fig. 2 is the structural schematic diagram of nozzle and restrictor ring in the fuel injection equipment (FIE) of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, develop simultaneously embodiment referring to the drawings, right
The present invention is further described.
As shown in Figure 1, 2, vaporizer tube combustor fuel injection equipment (FIE) of the invention, including nozzle mounting base 1, restrictor ring
2, fuel nozzle 3 and evaporation tube 4.Wherein, nozzle mounting base 1 includes installation end face 1A and ladder mounting hole, and nozzle mounting base 1 is logical
It crosses its installation end face 1A to fit on combustion box and be fixed by fastener, the ladder mounting hole of nozzle mounting base 1
Middle setting restrictor ring 2, the apex cavity of ladder mounting hole are connected to external oil feed line (not shown).Restrictor ring 2 is whole
In the cylinder-like structure of one end open, including top and cylindrical portion, the top of restrictor ring 2 is resisted against the step of ladder mounting hole
On, throttle orifice 2A is arranged in the top center of restrictor ring 2, and throttle orifice 2A is placed in restrictor ring 2, avoids small hole size and directly exposes
In combustion gas.Fuel nozzle 3 is internally provided with along its axially extending nozzle working connection 3A, and head is provided with fuel injection hole
The end outer circumferential surface of 3B, fuel nozzle 3 are equipped with step surface, and fuel nozzle 3 is justified by the step surface of its end with restrictor ring 2
The end of canister portion is fixedly connected, and the head portion of fuel nozzle 3 stretches into the inducer of evaporation tube 4.It is flowed into from external oil feed line
Fuel oil in 1 ladder mounting hole of nozzle mounting base passes through throttle orifice 2A, the flow nozzle working connection 3A of restrictor ring, then is sprayed through nozzle
Perforation 3B spurts into evaporation tube 4 with post type, and fuel oil is atomized under 4 tube wall high temperature action of evaporation tube, misty fuel oil warp
Evaporation tube both sides nozzle 4A sprays into combustion chamber and participates in burning.
In the vaporizer tube combustor fuel injection equipment (FIE) of the present invention, the diameter D1 of 2 top throttle orifice 2A of restrictor ring according to
Fuel oil sprays flow needed for pressure difference and engine and calculates acquisition, and the diameter D3 of fuel injection hole 3B is 1.1~1.5D1, nozzle
The internal diameter D2 of working connection 3A is 4~6D1.Since the diameter of the fuel injection hole 3B with contacts fuel gas is straight more than throttle orifice 2A
Diameter reduces the probability that fuel injection hole 3B is blocked due to carbon distribution, improves the life and reliability of fuel nozzle.Meanwhile
Since the ratio H1/D1 of the diameter D1 of the top thickness H1 and throttle orifice 2A of restrictor ring 2 are less than 3, throttle orifice 2A can be used
The mode of drilling or laser boring is processed, it is ensured that the consistency in the apertures different throttle orifice 2A ensures each evaporation tube
The consistency of the fuel flow of ejection reduces combustor exit temperature field to ensure the consistency in combustion chamber circumferential direction temperature field
Inhomogeneities, improve engine reliability of operation.
Further, the distance H that fuel injection hole 3B is exported to evaporation tube transverse axis is about that (D4 is evaporation tube to 3~4D4
The internal diameter of 4 inducers), which can guarantee atomization distance and nebulisation time sufficient needed for fuel oil, evaporation tube effective length
The atomizing effect that fuel oil can be improved is set, can effectively ensure that fuel oil fully burns, and then can guarantee that fuel oil fully burns and burns
Room outlet temperature field is uniform, reduces engine pollutant emission.
The shrinkage cavity phenomenon generated in order to prevent due to thermal expansion in welding process, first by the vacuum brazing of restrictor ring 2
Mode is welded in cylindrical surface junction 12, is fixed in nozzle mounting base 1, and throttle orifice 2A is then reprocessed.Processing
After complete throttle orifice, argon arc welding welding is carried out using low current welding machine at node 23, nozzle 3 is fixed on restrictor ring 2 and nozzle
On the sub-assembly of mounting base 1.The processing method and processing sequence of restrictor ring 2 and nozzle 3 can effectively ensure that circumferential several injections fill
The uniformity of combustor exit temperature field can be improved in the consistency for setting fuel flow.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different.The equivalent or simple change that all structure, feature and principles according to described in inventional idea of the present invention are done, is wrapped
It includes in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is done various modifications or additions or is substituted by a similar method, without departing from structure of the invention or surmounts this
Range as defined in the claims, is within the scope of protection of the invention.
Claims (5)
1. a kind of vaporizer tube combustor fuel injection equipment (FIE), including nozzle mounting base, restrictor ring, fuel nozzle and evaporation tube,
It is characterized in that,
-- the nozzle mounting base includes installation end face and ladder mounting hole, and the nozzle mounting base is closed by its installation end face paste
It fixes on combustion box and by fastener and the combustion box, is set in the ladder mounting hole of the nozzle mounting base
Restrictor ring is set, the apex cavity of ladder mounting hole is connected to external oil feed line；
-- the restrictor ring is in integrally the cylinder-like structure of one end open, including top and cylindrical portion, the top of the restrictor ring
It is resisted against on the step of the ladder mounting hole of the nozzle mounting base, throttle orifice is arranged in the top center of the restrictor ring；
-- the fuel nozzle is internally provided with along its axially extending nozzle working connection, and head is provided with fuel injection hole,
The end outer circumferential surface of the fuel nozzle is equipped with step surface, step surface and the section of the fuel nozzle by its end
The end connection of ring cylindrical portion is flowed, the head portion of the fuel nozzle stretches into the inducer of evaporation tube；
Wherein,
The fuel oil in the nozzle mounting base ladder mounting hole is flowed into from the external oil feed line and passes through the throttle orifice, is flowed into
The nozzle working connection, then the evaporation tube is spurted into post type through the fuel injection hole, in the evaporation tube wall
It is atomized under high temperature action, misty fuel oil sprays into combustion chamber through evaporation tube both sides nozzle and participates in burning；
Processing sequence in the fuel injection equipment (FIE) between each component is that first, the mode of restrictor ring vacuum brazing is existed
Cylindrical surface junction is welded, and is fixed in nozzle mounting base, then reprocesses throttle orifice；After processing throttle orifice,
Argon arc welding welding is carried out using low current welding machine in the end face binding site of restrictor ring and fuel injection hole, nozzle is fixed on section
It flows on ring and the sub-assembly of nozzle mounting base；
The diameter D1 of the throttle orifice sprays flow needed for pressure difference and engine according to fuel oil and calculates acquisition, the fuel oil injection
The diameter D3 in hole is 1.1~1.5D1, and the internal diameter D2 of the nozzle working connection is 4~6D1.
2. vaporizer tube combustor fuel injection equipment (FIE) according to claim 1, which is characterized in that the top of the restrictor ring
The ratio of the diameter D1 of portion thickness H1 and throttle orifice is less than 3.
3. vaporizer tube combustor fuel injection equipment (FIE) according to claim 2, which is characterized in that fuel injection hole exports
Distance H to evaporation tube transverse axis is about 3~4D4, wherein D4 is the internal diameter of evaporation tube inducer.
4. vaporizer tube combustor fuel injection equipment (FIE) according to claim 1, which is characterized in that the restrictor ring passes through
The mode of vacuum brazing is fixed in the ladder mounting hole of the nozzle mounting base.
5. vaporizer tube combustor fuel injection equipment (FIE) according to claim 1, which is characterized in that the fuel nozzle end
The step surface at end is fixedly connected by way of argon arc welding with the end of the restrictor ring cylindrical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286263.7A CN107044636B (en) | 2017-04-27 | 2017-04-27 | A kind of vaporizer tube combustor fuel injection equipment (FIE) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286263.7A CN107044636B (en) | 2017-04-27 | 2017-04-27 | A kind of vaporizer tube combustor fuel injection equipment (FIE) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044636A CN107044636A (en) | 2017-08-15 |
| CN107044636B true CN107044636B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286263.7A Active CN107044636B (en) | 2017-04-27 | 2017-04-27 | A kind of vaporizer tube combustor fuel injection equipment (FIE) |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676816B (en) * | 2017-09-26 | 2020-08-14 | 中国科学院工程热物理研究所 | Evaporating pipe with built-in swirler at outlet, combustion chamber and engine |
| CN108131685A (en) * | 2017-12-14 | 2018-06-08 | 西北工业大学 | Tiny engine combustion chamber multi-point injection evaporation tube |
| CN109648177B (en) * | 2018-12-21 | 2021-01-08 | 北京动力机械研究所 | Pipeline connection method suitable for oil injection device |
| CN111852710B (en) * | 2020-07-29 | 2021-07-23 | 无锡工艺职业技术学院 | Fuel atomizing nozzle of engine |
| CN114235421B (en) * | 2021-12-06 | 2023-12-26 | 中国科学院工程热物理研究所 | Device and method for measuring maximum fuel flow limit line of turbojet engine |
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| US2956404A (en) * | 1956-10-02 | 1960-10-18 | Avco Mfg Corp | Fuel vaporizer |
| US3633361A (en) * | 1968-10-02 | 1972-01-11 | Snecma | Burners for reheat combustion chambers |
| CN1743735A (en) * | 2005-09-29 | 2006-03-08 | 北京航空航天大学 | Evaporation pipe type miniature-small-sized engine combustion chamber |
| CN1912368A (en) * | 2006-08-23 | 2007-02-14 | 北京航空航天大学 | Fuel pre-evaporation and premix perforated pipe |
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| CN102777899A (en) * | 2012-08-22 | 2012-11-14 | 常州大学 | Internal mixing type gas atomization fuel nozzle |
| CN102889614A (en) * | 2012-10-24 | 2013-01-23 | 哈尔滨东安发动机（集团）有限公司 | Direct-flow spraying nozzle |
| CN202993194U (en) * | 2012-12-18 | 2013-06-12 | 朱仲达 | Preheating evaporation alcohol-based vaporization stove head |
| CN205746821U (en) * | 2016-07-14 | 2016-11-30 | 福建铁拓机械有限公司 | A kind of burner ignition device being applied to asphalt-regenerating drying plant |
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2017
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2956404A (en) * | 1956-10-02 | 1960-10-18 | Avco Mfg Corp | Fuel vaporizer |
| US3633361A (en) * | 1968-10-02 | 1972-01-11 | Snecma | Burners for reheat combustion chambers |
| CN1743735A (en) * | 2005-09-29 | 2006-03-08 | 北京航空航天大学 | Evaporation pipe type miniature-small-sized engine combustion chamber |
| CN1912368A (en) * | 2006-08-23 | 2007-02-14 | 北京航空航天大学 | Fuel pre-evaporation and premix perforated pipe |
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| CN107044636A (en) | 2017-08-15 |
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Address after: No. 1333 Yingshanhong Road, Huangdao District, Qingdao, Shandong Province, 266000 Patentee after: Zhongke Hangxing Technology Co.,Ltd. Country or region after: China Address before: 266000 Binhai Avenue South, Shanchuan Road West, Huangdao District, Qingdao City, Shandong Province Patentee before: ZHONGKE HANGXING TECHNOLOGY Co.,Ltd. Country or region before: China |
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