CN201875709U - Flame profiling cylinder, surface burner and fuel heater - Google Patents
Flame profiling cylinder, surface burner and fuel heater Download PDFInfo
- Publication number
- CN201875709U CN201875709U CN2010202118081U CN201020211808U CN201875709U CN 201875709 U CN201875709 U CN 201875709U CN 2010202118081 U CN2010202118081 U CN 2010202118081U CN 201020211808 U CN201020211808 U CN 201020211808U CN 201875709 U CN201875709 U CN 201875709U
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- Prior art keywords
- flame
- profiling
- cylindrical shell
- burner
- surface combustion
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- Expired - Lifetime
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- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 63
- 239000003595 mist Substances 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000295 fuel oil Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- -1 FeCrAl Inorganic materials 0.000 claims description 3
- 229910003192 Nb–Ta Inorganic materials 0.000 claims description 3
- 229910000943 NiAl Inorganic materials 0.000 claims description 3
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 238000002679 ablation Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 101150006257 rig-4 gene Proteins 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
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- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The utility model discloses a flame profiling cylinder, a surface burner and a fuel heater, wherein the surface burner is a profiling flame-dividing surface burner comprising a flame profiling cylinder and a flame divider, wherein the flame profiling cylinder comprises a profiling cylinder body and a surface combustion layer arranged outside the profiling cylinder body; the profiling cylinder body is spindle-shaped according to the shape of flame and is provided with ignition holes which specify the initial combustion shape of the flame and reduce the heat loss; the flame profiling cylinder is fixed in a cavity between a combustion device and a heat exchange device of the fuel heater, and can intercept the pre-burning oil mist with a big divergence angle so as to lead the oil mist to be uniformly attached to the surface combustion layer outside the profiling cylinder body through the ignition holes on the profiling cylinder body, thereby effectively preventing the pre-burning oil mist from forming pollutants to be discharged into the natural environment due to incomplete combustion or being attached to the inner wall of the combustion device to form carbon deposition under the condition of free combustion space.
Description
Technical field
The present invention relates to a kind of vehicle cold start-up preheating device, particularly about a kind of flame profiling tube, surface combustion burner and fuel heater.
Background technology
The vehicle fuel heater is mainly used in warm-up the engine and provide heating installation for driver's cabin cold season.The core of fuel heater is the combustion heat-exchange device, and fuel oil forms mist of oil by the ejection of atomizer high pressure, and mist of oil evenly mixes the abundant burning in back with air and discharges a large amount of heat energy in burner.Heat energy in the burner mainly enters into heat-exchanger rig by thermal-radiating mode, heat transferring medium in the heat-exchanger rig is by the radiant heat energy of heat conducting mode fast Absorption thermal-flame, heat transferring medium enters engine system by power cycle, realizes the preheating before the engine cold-start.
Along with the progress of the burner design theory in the fuel heater, the volume calorific intensity of burner has significantly raising, and the red-hot flame temperature of the high temperature in burner exit can reach 1200 ℃～1800 ℃.As flame not being used restraint, under the free space form, the thermal-flame that burner produces will directly clash and wash away the heat-exchanger rig wall, cause the ablation of heat-exchanger rig and too high exhaust emissions temperature easily, shorten the service life of heat-exchanger rig, and reduced the heat energy utilization rate.Moreover, if wind field hypertonia in the burner might directly be passed heat-exchanger rig without the thermal-flame that retrains, from the exhaust port ejection, afterburning appears, cause peril.
Powerful fuel heater, usually fuel oil is formed the mist of oil ejection by high pressure through atomizer, but the mist of oil that portion's dispersion angle is bigger is easy to be dissipated in the space away from the flame combustion center, this part mist of oil be owing to can not fully burn, or along with exhaust emissions in external environment, increase the discharging degree of exhaust pollutant, or be bonded on the interior thorax wall of burner, form carbon distribution through high-temperature oxydation, can influence the efficiency of combustion of burner, reduce the serviceability of burner.
Summary of the invention
The objective of the invention is provides a kind of flame profiling tube of effectively standard flame profile at the deficiency in the existing combustion heat-exchange technology; And use this flame profiling tube, and can shorten the distance that runs through of the red-hot flame of high temperature, enlarge the flame radiation heat exchange area, reduce the surface combustion burner of the ablation degree of the red-hot flame heat exchanging of high temperature device greatly; And use this surface combustion burner, can improve efficiency of combustion, the heat exchange efficiency of fuel heater, and reduce the fuel heater of pollutant discharge amount.
Technical scheme of the present invention is as follows:
A kind of flame profiling tube, it is characterized in that: it comprises a profiling cylindrical shell, the profile of described profiling cylindrical shell has fuel oil and forms mist of oil by the ejection of atomizer high pressure, and the flame combustion shape when unpolarized burning, and be arranged on surface combustion layer on the described profiling barrel outer surface, the hole of igniting is set on the described profiling cylindrical shell.
Described profiling cylindrical shell is a spindle, along the radial direction at spindle cylindrical shell maximum radius place jockey is set.
Described profiling cylindrical shell is that the heating resisting metal sheet material of 0.8mm～2mm is made by thickness.
Described surface combustion layer is formed by heating resisting metal filament braiding sintering, and is fixed by welding in profiling cylindrical shell outside, and described surface combustion layer thickness is 3mm～8mm.
Described metal fiber wire is that tolerable temperature is that 1000 ℃～1800 ℃, diameter are Mo-La, Nb-Ta, FeCrAl, NiAl or the NiCrAl filament of 0.18～0.82mm.
A kind of surface combustion burner that uses flame profiling tube is characterized in that: it comprises described flame profiling tube, and a branch flame device that is fixed in the flame profiling tube.
Described minute flame device comprises that one has the hollow cylinder of taper barrel, and the awl bottom branch of described hollow cylinder is arranged on burning things which may cause a fire disaster one side.
The flame device was fixed on the described profiling tube by fin in described minute, was positioned at flame kernel point position, and coaxial with described flame profiling tube.
The tapering of described hollow cylinder be the burning things which may cause a fire disaster atomizer spray angle N doubly, 1＜N≤1.4.
The surfaces externally and internally of described hollow cylinder and fin surface evenly spray the heat-stable ceramic coating.
A kind of fuel heater that adopts surface combustion burner comprises burner and heat-exchanger rig, it is characterized in that: described surface combustion burner is fixed in the cavity between described burner and the described heat-exchanger rig by jockey; Described surface combustion burner is coaxial with atomizer.
Described profiling cylindrical shell is a spindle, along the radial direction at spindle cylindrical shell maximum radius place jockey is set; Described profiling cylindrical shell is divided into enlarged portion and intensive portion, and the boundary position of enlarged portion and intensive portion is described cylindrical shell maximum radius place, and described enlarged portion is arranged in the burner, and described intensive portion is arranged in the heat-exchanger rig.
The main part of the branch flame device in the described surface combustion burner is arranged in the described heat-exchanger rig.
Technique effect of the present invention is as follows:
Surface combustion burner of the present invention is to comprise flame profiling tube and divide the profiling formula of flame device to divide the flame surface combustion burner.Wherein flame profiling tube comprises a profiling cylindrical shell, and the surface combustion layer that is arranged on profiling cylindrical shell outside, the profiling cylindrical shell is arranged to the spindle shape according to the shape of flame, and the hole of igniting is set on the cylindrical shell, the initial combustion shape of flame is carried out standardization handle, reduce thermal loss.Flame profiling tube is fixed in the burner and the cavity between the heat-exchanger rig of fuel heater, can tackle the bigger pre-fuel spray in angle that looses, make it can see through the hole of igniting on the profiling cylindrical shell evenly attached on the outer surface combustion layer of profiling cylindrical shell, effectively avoided this part pre-fuel spray under the free combustion steric requirements, can not fully burn and form pollutant and enter in the natural environment, or form carbon distribution attached to the burner inwall.
Dividing the flame device is one to have the hollow cylinder of taper barrel, by the fin in the hollow cylinder outer setting, is fixed on the part that the profiling cylindrical shell is arranged in described heat-exchanger rig.When the red-hot flame impingement of high temperature was outside to the taper barrel that divides the flame device, the red-hot flame of high temperature produced reflection and divides flame, has increased the area of radiation heat transfer, and has effectively shortened the distance that runs through of the red-hot flame of high temperature, has avoided the ablation of the red-hot flame heat exchanging of high temperature device.Light attached to the oil film on the surface combustion layer in the hole of igniting that reflection simultaneously divides flame to see through on the flame profiling tube, improves the burn rate and the efficient of fuel oil, reduces the discharge capacity of pollutant thereby fuel oil is fully burnt.
Flame profiling tube all adopts the heating resisting metal material to make with the each several part that divides the flame device, effectively reduces the red-hot flame of high temperature to installing the ablation of itself.
Fuel heater of the present invention, by above-mentioned surface combustion burner is set between burner and heat-exchanger rig, make the combustion system of fuel heater realize that transformation from unpolarized burning to the surface combustion of microporous medium infiltration type, heat exchange mode realize the transformation from conduction, heat convection mode to the prompt radiation heat exchange mode.
Description of drawings
Fig. 1 is a flame profiling barrel structure schematic diagram of the present invention
Fig. 2 is the schematic side view of of the present invention minute flame device
Fig. 3 is the structural representation of surface combustion burner of the present invention
Fig. 4 is a fuel heater structural representation of the present invention
Each label is as follows among the figure:
1-flame profiling tube; 11-profiling cylindrical shell; 12-surface combustion layer; The 13-hole of igniting; The 14-flange; 2-divides the flame device; The 21-fin; The 3-burner; The 31-atomizer; The 4-heat-exchanger rig.
The specific embodiment
The present invention will be described below in conjunction with accompanying drawing.
As shown in Figure 1, flame profiling tube 1 comprises profiling cylindrical shell 11, surface combustion layer 12 and is arranged on the hole 13 of igniting on the profiling cylindrical shell 11 that the hole 13 of igniting is through hole.Wherein, the profile of profiling cylindrical shell 11 is the spindle similar to flame, and the variation according to the tapering of spindle cylindrical shell can be divided into cylindrical shell enlarged portion and intensive portion.Boundary position in enlarged portion and intensive portion, promptly cylindrical shell maximum radius place is provided with jockey, and the jockey in the present embodiment is the flange 14 that radially is provided with, and is used for fixing flame profiling tube.The installing hole coupling that flange hole in the flange 14 and burner and heat-exchanger rig junction are provided with is used for profiling cylindrical shell 11 is installed between the burner and heat-exchanger rig of fuel heater.
Profiling cylindrical shell 11 is used for the initial combustion shape of the red-hot flame of high temperature is carried out standard, and provides support for surface combustion layer 12.Surface combustion layer 12 is close on the outer surface of profiling cylindrical shell 11, and fixing by welding manner and profiling cylindrical shell 11.Surface combustion layer 12 can be caught mist of oil to greatest extent, makes its surface at metal fiber wire form oil film, can enlarge the burning area of fuel oil.Profiling cylindrical shell 11 is made by the heating resisting metal plate, the heat-resisting steel sheet and plate of preferred thickness 0.8mm～2mm in the present embodiment.The size of profiling cylindrical shell 11, according to concrete oil inflame parameter simulation free space flame combustion shape and is determined after the correction of process parameter by computer simulation software.Analogue simulation software can as star-CD or Fluent, carry out numerical simulation to oil mist combustion situation in the burner with existing hydrodynamic simulation software.Surface combustion layer 12 is formed by refractory metal filament braiding sintering, also can beat micropore by laser by metallic plate and make; Preferred 3mm～the 8mm of the thickness of surface combustion layer 12 in the present embodiment, the preferred tolerable temperature of metal fiber wire is 1000 ℃～1800 ℃, the metal fiber wire radius is 0.18mm～0.82mm, and material is the metal fiber wire of alloy materials such as Mo-La, Nb-Ta, FeCrAl, NiAl, NiCrAl.
Shown in Fig. 2,3, divide flame device 2 for having the hollow cylinder of taper barrel, divide the barrel of flame device 2 to make, the preferred thick heat-resisting steel sheet and plate of 3mm～5mm in the present embodiment by heating resisting metal.Divide the tapering of flame device 2 barrels to be determined by the spray angle that is installed in the atomizer in the fuel heater, preferred tapering (bus angle) equals 1～1.4 times of spray angle in the present embodiment.Divide the surfaces externally and internally of flame device 2 evenly to spray the heat-stable ceramic coating, refractory coating is that the Aero-Space apparatus flame jet pipe of 1500 ℃～2600 ℃ of tolerance levels is ceramic coated, prevents that the red-hot flame of high temperature is to minute ablation of flame device 2 bodies.The fin 21 that divides flame device 2 barrel outer surfaces that two symmetries are set symmetrically, fin 21 are weldingly fixed on the inwall of intensive portion of profiling cylindrical shell 11, make branch flame device 2 coaxial with flame profiling tube 1.
As shown in Figure 4, fuel heater of the present invention is divided into burner 3 and heat-exchanger rig 4 two parts, and wherein atomizer 31 is arranged in the burner 3.In the inner chamber between burner 3 and heat-exchanger rig 4, be fixed with flame profiling tube 1, in flame profiling tube 1, be provided with branch flame device 2 by flange 14.The enlarged portion of flame profiling tube 1 is arranged in the burner 3, and the intensive portion of flame profiling tube 1 is arranged in the heat-exchanger rig.Divide the main part of flame device 2 to be positioned at the heat-exchanger rig porch, and its vertex of a cone part of hollow cylinder with taper barrel is at the heat-exchanger rig inlet side, i.e. burning things which may cause a fire disaster one side.
In fuel heater when heating operation, the mist of oil of atomizers 31 ejections in the burner 3 forms pre-fuel spray with after the wind field of acutely disturbance fully mixes.The bigger pre-fuel spray of portion's dispersion angle sees through the hole 13 of igniting on the profiling burner inner liner 1 uniformly attached on the surface combustion layer 12, forms oil film through the metallic fiber micropore expansion of surface combustion layer 12.Pre-fuel spray produces the red-hot flame of high temperature after lighting, the red-hot flame of high temperature obtains the standard of flame profile in flame profiling tube 1, when red-hot flame impingement is outside to the taper barrel that divides flame device 2, the red-hot flame of high temperature produces reflection and divides flame, moment, calory burning scattered on the wall of heat-exchanger rig 4 with the form of radiant energy, increased the area of radiation heat transfer, and effectively shorten the distance that runs through of the red-hot flame of high temperature, avoided the ablation of the red-hot flame heat exchanging of high temperature device 4, the heat exchange mode of fuel heater is realized from conduction, the heat convection mode improves heat exchange efficiency to the transformation of prompt radiation heat exchange mode.Light attached to the oil film on the surface combustion layer 12 through the hole 13 of igniting on the profiling burner inner liner 2 through the flame of reflection simultaneously, make the red-hot flame burning mode of high temperature change the surface combustion of microporous medium infiltration type into by unpolarized burning, improve the burn rate and the efficient of fuel oil, sufficient combustion reduces the discharge capacity of pollutant.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore; although this specification has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can make amendment or be equal to replacement the invention; in a word, all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (13)
1. flame profiling tube, it is characterized in that: it comprises a profiling cylindrical shell, the profile of described profiling cylindrical shell has fuel oil and forms mist of oil by the ejection of atomizer high pressure, and the flame combustion shape when unpolarized burning, and be arranged on surface combustion layer on the described profiling barrel outer surface, the hole of igniting is set on the described profiling cylindrical shell.
2. a kind of flame profiling tube as claimed in claim 1, it is characterized in that: described profiling cylindrical shell is a spindle, along the radial direction at spindle cylindrical shell maximum radius place jockey is set.
3. a kind of flame profiling tube as claimed in claim 1 or 2 is characterized in that: described profiling cylindrical shell is that the heating resisting metal sheet material of 0.8mm～2mm is made by thickness.
4. a kind of flame profiling tube as claimed in claim 1 or 2 is characterized in that: described surface combustion layer is formed by heating resisting metal filament braiding sintering, and is fixed by welding in profiling cylindrical shell outside, and described surface combustion layer thickness is 3mm～8mm.
5. a kind of flame profiling tube as claimed in claim 4 is characterized in that: described metal fiber wire is that tolerable temperature is that 1000 ℃～1800 ℃, diameter are Mo-La, Nb-Ta, FeCrAl, NiAl or the NiCrAl filament of 0.18～0.82mm.
6. the surface combustion burner of use such as the described flame profiling of claim 1～5 tube, it is characterized in that: it comprises described flame profiling tube, and a branch flame device that is fixed in the flame profiling tube.
7. a kind of surface combustion burner as claimed in claim 6 is characterized in that: described minute flame device comprises that one has the hollow cylinder of taper barrel, and the awl bottom branch of described hollow cylinder is arranged on burning things which may cause a fire disaster one side.
8. as claim 7 or 6 described a kind of surface combustion burners, it is characterized in that: the flame device was fixed on the described profiling tube by fin in described minute, was positioned at flame kernel point position, and coaxial with described flame profiling tube.
9. a kind of surface combustion burner as claimed in claim 7 is characterized in that: the tapering of described hollow cylinder be the burning things which may cause a fire disaster atomizer spray angle N doubly, 1＜N≤1.4.
10. as claim 6 or 7 or 9 described a kind of surface combustion burners, it is characterized in that: the surfaces externally and internally of described hollow cylinder and fin surface evenly spray the heat-stable ceramic coating.
11. the fuel heater of employing such as the described surface combustion burner of claim 6～10, comprise burner and heat-exchanger rig, it is characterized in that: described surface combustion burner is fixed in the cavity between described burner and the described heat-exchanger rig by jockey; Described surface combustion burner is coaxial with atomizer.
12. a kind of fuel heater as claimed in claim 11 is characterized in that: described profiling cylindrical shell is a spindle, along the radial direction at spindle cylindrical shell maximum radius place jockey is set; Described profiling cylindrical shell is divided into enlarged portion and intensive portion, and the boundary position of enlarged portion and intensive portion is described cylindrical shell maximum radius place, and described enlarged portion is arranged in the burner, and described intensive portion is arranged in the heat-exchanger rig.
13. a kind of fuel heater as claimed in claim 11 is characterized in that: the main part of the branch flame device in the described surface combustion burner is arranged in the described heat-exchanger rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202118081U CN201875709U (en) | 2010-06-02 | 2010-06-02 | Flame profiling cylinder, surface burner and fuel heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202118081U CN201875709U (en) | 2010-06-02 | 2010-06-02 | Flame profiling cylinder, surface burner and fuel heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875709U true CN201875709U (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202118081U Expired - Lifetime CN201875709U (en) | 2010-06-02 | 2010-06-02 | Flame profiling cylinder, surface burner and fuel heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881444A (en) * | 2010-06-02 | 2010-11-10 | 北京北机机电工业有限责任公司 | Flame copying cylinder, surface burner and fuel oil heater |
| CN103174550A (en) * | 2012-03-10 | 2013-06-26 | 摩尔动力(北京)技术股份有限公司 | Reciprocating channel direction finder |
| CN106402855B (en) * | 2016-08-31 | 2018-09-07 | 北京北机机电工业有限责任公司 | A kind of high heat flux density combustion chamber |
-
2010
- 2010-06-02 CN CN2010202118081U patent/CN201875709U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881444A (en) * | 2010-06-02 | 2010-11-10 | 北京北机机电工业有限责任公司 | Flame copying cylinder, surface burner and fuel oil heater |
| CN101881444B (en) * | 2010-06-02 | 2012-07-04 | 北京北机机电工业有限责任公司 | Flame copying cylinder, surface burner and fuel oil heater |
| CN103174550A (en) * | 2012-03-10 | 2013-06-26 | 摩尔动力(北京)技术股份有限公司 | Reciprocating channel direction finder |
| CN106402855B (en) * | 2016-08-31 | 2018-09-07 | 北京北机机电工业有限责任公司 | A kind of high heat flux density combustion chamber |
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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: 20110622 Effective date of abandoning: 20120704 |