CN202757149U - Plasma strengthen atomization nozzle - Google Patents
Plasma strengthen atomization nozzle Download PDFInfo
- Publication number
- CN202757149U CN202757149U CN 201220302234 CN201220302234U CN202757149U CN 202757149 U CN202757149 U CN 202757149U CN 201220302234 CN201220302234 CN 201220302234 CN 201220302234 U CN201220302234 U CN 201220302234U CN 202757149 U CN202757149 U CN 202757149U
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- cyclone
- hydrocyclone
- nozzle body
- discharge
- plasma
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Abstract
The utility model aims to provide a plasma strengthen atomization nozzle which comprises a low-temperature plasma discharge assembly, an oil filter and a hydrocyclone assembly. The low-temperature plasma discharge assembly comprises an outer electrode, an inner electrode, a ceramic part and a power connection frame, wherein the power connection frame is sleeved on the outer electrode, one part of the ceramic part is arranged inside the outer electrode, and the other part of the ceramic part is arranged inside the power connection frame. The inner electrode is arranged inside the ceramic part, and a discharge area is formed between the ceramic part and the outer electrode. The hydrocyclone assembly comprises a support, a supporting spring, a nozzle shell, a hydrocyclone and a hydrocyclone shell, wherein the hydrocyclone is arranged inside the hydrocyclone shell, the supporting spring is connected with the support and the hydrocyclone, the hydrocyclone shell is arranged inside the nozzle shell, and a nozzle body of the hydrocyclone shell is communicated with a nozzle body of the nozzle shell. The low-temperature plasma discharge assembly is connected with the hydrocyclone assembly, and the oil filter arranged on the outer electrode is communicated with the discharge area. The plasma strengthen atomization nozzle improves atomization effect, and improves flame propagation velocity.
Description
Technical field
The utility model relates to a kind of gas turbine, specifically the nozzle of gas turbine.
Background technology
The dielectric barrier discharge technology is a kind of of low temperature plasma catalysis, is mainly used at present the technical fields such as processing of ozone production, exhaust-gas treatment, material surface modifying, gaseous contaminant.Low temperature plasma catalysis is a kind of extremely effectively approach that realizes the low energy consumption of plasma chemical reaction process, high yield, high selectivity.
The dielectric barrier discharge technology is multiplex in research and the processing of gaseous substance, and less for the catalyticing research of liquid object.The people such as Ye Qizheng, Li Jing utilizes the dielectric barrier discharge device to study the gas discharge water technology on liquid film surface, print and forever auspiciously act on underwater bubble by the dielectric barrier discharge device, when discharging in the bubble, high energy electron, ozone and ultraviolet ray can fully contact with water, are easy to produce the free radicals such as hydroxyl and process waste water.Liu Yongjun has studied the application of low temperature plasma in water treatment, adopts contacting glow, the organic pollution in the degradation water.
In the application aspect the water treatment, the very large and dielectric constant very high (being about 80) of the density of mainly considering water is so that directly discharge very difficult to water for low temperature plasma.The liquid fuel dielectric constant that adopts in the utility model is lower, is about 2 ~ 4, can utilize dielectric barrier discharge to realize the partially catalyzed cracking of liquid fuel.
In recent years, the research that the dielectric barrier discharge technology is applied to plasma catalytic atomizing is also fewer, has no relevant report in particular for catalysis and the assisted atomization of liquid fuel.
Summary of the invention
The purpose of this utility model is to provide a kind of plasma strengthening atomizer that the dielectric barrier discharge technology is applied to the plasma catalytic atomizing.
The purpose of this utility model is achieved in that
A kind of plasma strengthening atomizer of the utility model is characterized in that: comprise cold plasma discharge assembly, oil strainer and swirler assembly; The cold plasma discharge assembly comprises external electrode, interior electrode, ceramic member, power supply link, the power supply link is enclosed within on the external electrode, a ceramic member part is installed in the external electrode, another part is installed in the power supply link, interior electrode is installed in the ceramic member, forms region of discharge between ceramic member and the external electrode; Swirler assembly comprises support, support spring, nozzle body, cyclone, cyclone housing, cyclone is installed in the cyclone housing, support spring connection bracket and cyclone, the cyclone housing is installed in the nozzle body, the spout of the spout connection nozzle body of cyclone housing; The cold plasma discharge assembly links to each other with swirler assembly, and oil strainer is installed on the external electrode, and oil strainer is connected with region of discharge.
The utility model can also comprise:
1, coaxial between the support of described swirler assembly, cyclone, cyclone housing and the nozzle body.
2, seal between cyclone housing and the nozzle body, the cyclone equipment shell axon is to even distribution hole, and oil enters cyclone and passes through the ejection of cyclone housing from the hole of cyclone housing.
3, the spout of nozzle body is the expansion taper.
Advantage of the present utility model is: liquid fuel is behind the dielectric barrier discharge low-temperature plasma catalytic, and part of fuel is cracked into fuel fragment and activating component, forms the gas plasma micelle, is contained in the middle of the liquid fuel.The liquid fuel that is rich in the gaseous state micelle enters swirler assembly ejection after atomizing, sprays moment gaseous state micelle generation explosion so that fuel oil produces very tiny liquid mist, thereby improves atomizing effect.In the process of liquid fuel atomizing and explosion, fuel fragment and the activating component of discharge generation enter the combustion chamber, because it is easy to burning, can improve flame propagation velocity, guarantee stability and the completeness of burning under the low operating mode.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, the utility model mainly comprises cold plasma discharge assembly, oily filter assemblies 12, swirler assembly and fuel atomizer etc.The cold plasma discharge assembly mainly comprises: external electrode 5, ceramic block media 3, interior electrode 2, power supply link 1, carbon seal ring.Pottery block media 3 is designed to the top closure pattern, utilizes carbon seal ring 4 and external electrode 5 to realize sealing, and interior electrode 2 is in wherein, effectively avoids the end arc discharge, guarantees Uniform discharge and the stability of region of discharge; Adopt pottery can effectively prevent discharge breakdown as block media, improve the service life of plasma strengthening atomizer, form region of discharge between external electrode 5 and the ceramic member 3, oil strainer 12 is installed on the external electrode 5, and is communicated with region of discharge.Swirler assembly mainly comprises: support 6, sealing gasket 7, support spring 8, cyclone 10, cyclone housing 11, fuel atomizer and shell body 9.Support spring 8 should have enough rigidity, realize being rigidly connected between support 6 and the cyclone 10, namely guarantee the alignment between support 6, cyclone 10, cyclone housing 11 and the shell body thereof, the phenomenon such as the cyclone that may occur when avoiding shell body loosening is crooked guarantees good atomizing effect.For closely cooperating, guarantee all to spray through cyclone bottom inclined hole from the fluid that cyclone housing 11 axial equally distributed apertures enter between cyclone 10 and the cyclone housing 11, through the ejection of cyclone housing 11 lower taper nozzle eddy flows, realize atomizing again.Shell body 9 ends are designed to the spreader cone body, can select different angles to guarantee suitable atomizing cone angle.Utilize the liquid fuels such as low temperature plasma catalytic diesel oil to make its part cracking, form the gas plasma micelle, be included in liquid fuel inside, utilize the gas plasma micelle in the explosion of the moment of nozzle exit and inflammability thereof, utilize gas to realize dripping the assisted atomization in footpath and improving combustion stability.Be to guarantee that effectively discharge occurs region of discharge, discharging gap is 1-4mm, guarantees that by the diameter of adjusting internal and external electrode 5 and block media liquid fuel has suitable flow and jet velocity in the region of discharge under required fuel delivery.
Strengthen atomizer according to the low-temperature plasma that the utility model proposes, adopt the dielectric barrier discharge device to realize the part cracking of liquid fuel, form the gas plasma micelle, be included in liquid fuel inside.Wherein block media adopts pottery, because its dielectric constant is higher, guarantees that diesel oil can discharge at region of discharge; Adopt the ceramic discharge breakdown that can effectively prevent block media as block media, the service life of improving the plasma strengthening atomizer; Block media is designed to the top closure pattern, and interior electrode is in wherein, through experimental verification, can effectively avoid the end arc discharge, guarantees Uniform discharge and the stability of region of discharge.
Eddy flow assembly place is by adopting support spring to realize being rigidly connected between support and the cyclone, namely guaranteed the alignment between support, cyclone, cyclone housing and the shell body thereof, the phenomenons such as the cyclone that may occur when avoiding shell body loosening is crooked guarantee good atomizing effect.
Pottery both as the block media of cold plasma discharge, was realized the discharge of the liquid fuel of expection in the utility model; Simultaneously because its good insulating properties is used as dielectric between the high-pressure and low-pressure, realize high-tension insulation, guarantee plasma strengthening atomizer reliably working under high temperature, high voltage environment.The utility model is designed to one with required ceramic member, both can prevent from the shelf depreciation closely do not cause because connecting from making things convenient for again processing and manufacturing.
In conjunction with Fig. 1, the low-temperature plasma power connection is connected on the plasma strengthening atomizer shell by support 1 external screw thread, is used to provide the block media required high-tension electricity that discharges.Fuel system by external electrode 5 right sides screw thread connect, fuel oil enters atomizer cracking space behind oil strainer 12, namely in electrode 3 and external electrode 5 formed annular gaps.After gas turbine starts, when low operating mode ruuning situation, liquid fuel such as diesel oil enter region of discharge after oil strainer purifies, diesel oil is full of whole discharge space very soon under higher inlet pressure, open the low-temperature plasma power supply this moment, the cracking of liquid fuel part forms the gas plasma micelle, and is included in liquid fuel inside.Gas mixture passes support 6, enters the nozzle body inner space, behind go forward side by side cyclone 10 and the cyclone housing 11, produces the eddy flow effect.The mixed zone relies on the gas plasma micelle in the explosion of the moment of nozzle exit and inflammability thereof, realizes the super-fine atomization that spray droplets is dripped, and has guaranteed the smooth combustion under low operating mode and the lean burn condition to reduce the discharging of NOx.
The sealing that carbon seal ring 4 is used between the internal and external electrode prevents Leakage Gas, impact ionization effect.The sealing that sealing gasket 7 is used between assurance atomizer and the external electrode.Support spring 8 is used for compressing cyclone 10, cyclone housing 11, reaches nozzle body 9, thereby guarantees that atomizing effect is good.Cyclone 10 and cyclone housing 11 are used for guaranteeing the eddy flow effect of fuel oil, improve atomization.
When gas turbine is in steady-working state or reaches nominal load, the fuel oil supply is larger, stable and completing combustion have been realized in the combustion chamber, simultaneously liquid fuel is shorter and can't effectively produce gaseous state plasma micelle in the region of discharge time of staying, should close the low-temperature plasma power supply this moment, only relies on the atomizing of cyclone realization liquid fuel can satisfy the atomizing requirement.
Claims (5)
1. a plasma strengthening atomizer is characterized in that: comprise cold plasma discharge assembly, oil strainer and swirler assembly; The cold plasma discharge assembly comprises external electrode, interior electrode, ceramic member, power supply link, the power supply link is enclosed within on the external electrode, a ceramic member part is installed in the external electrode, another part is installed in the power supply link, interior electrode is installed in the ceramic member, forms region of discharge between ceramic member and the external electrode; Swirler assembly comprises support, support spring, nozzle body, cyclone, cyclone housing, cyclone is installed in the cyclone housing, support spring connection bracket and cyclone, the cyclone housing is installed in the nozzle body, the spout of the spout connection nozzle body of cyclone housing; The cold plasma discharge assembly links to each other with swirler assembly, and oil strainer is installed on the external electrode, and oil strainer is connected with region of discharge.
2. a kind of plasma strengthening atomizer according to claim 1 is characterized in that: coaxial between the support of described swirler assembly, cyclone, cyclone housing and the nozzle body.
3. a kind of plasma strengthening atomizer according to claim 1 and 2, it is characterized in that: seal between cyclone housing and the nozzle body, the cyclone equipment shell axon is to even distribution hole, and oil enters cyclone and passes through the ejection of cyclone housing from the hole of cyclone housing.
4. a kind of plasma strengthening atomizer according to claim 1 and 2 is characterized in that: the spout of nozzle body is the expansion taper.
5. a kind of plasma strengthening atomizer according to claim 3 is characterized in that: the spout of nozzle body is the expansion taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302234 CN202757149U (en) | 2012-06-26 | 2012-06-26 | Plasma strengthen atomization nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302234 CN202757149U (en) | 2012-06-26 | 2012-06-26 | Plasma strengthen atomization nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757149U true CN202757149U (en) | 2013-02-27 |
Family
ID=47736329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302234 Withdrawn - After Issue CN202757149U (en) | 2012-06-26 | 2012-06-26 | Plasma strengthen atomization nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721081A (en) * | 2012-06-26 | 2012-10-10 | 哈尔滨工程大学 | Nozzle for enhancing atomization by plasma |
| CN110440291A (en) * | 2019-08-01 | 2019-11-12 | 沈阳航空航天大学 | Using the plasma fuel atomizer and control method of double mode excitation |
-
2012
- 2012-06-26 CN CN 201220302234 patent/CN202757149U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721081A (en) * | 2012-06-26 | 2012-10-10 | 哈尔滨工程大学 | Nozzle for enhancing atomization by plasma |
| CN102721081B (en) * | 2012-06-26 | 2014-06-25 | 哈尔滨工程大学 | Nozzle for enhancing atomization by plasma |
| CN110440291A (en) * | 2019-08-01 | 2019-11-12 | 沈阳航空航天大学 | Using the plasma fuel atomizer and control method of double mode excitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20140625 |
|
| RGAV | Abandon patent right to avoid regrant |