CN204329008U - A kind of multimachine reason composite atomizing fuel nozzle structure - Google Patents
A kind of multimachine reason composite atomizing fuel nozzle structure Download PDFInfo
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- CN204329008U CN204329008U CN201420743064.6U CN201420743064U CN204329008U CN 204329008 U CN204329008 U CN 204329008U CN 201420743064 U CN201420743064 U CN 201420743064U CN 204329008 U CN204329008 U CN 204329008U
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- atomizing
- fuel
- atomizing medium
- blender
- outer tube
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Abstract
The utility model discloses a kind of multimachine reason composite atomizing fuel nozzle structure.Described atomizing fuel nozzle comprises interior pipe, and this interior pipe is communicated with fuel filler and as fuel gallery; Outer tube, this outer tube fills on inner pipe and form atomizing medium passage between outer tube and interior pipe, the tube wall of this outer tube has the atomizing medium entrance with atomizing medium channel connection; Blender, this blender is positioned at discharging opening one end of atomizing medium passage, and with described fuel gallery and atomizing medium channel connection; And nozzle, this nozzle being contained in outer tube one end is positioned at the discharge port end of blender, and the front end of nozzle has multiple spray orifice; The atomization structure be atomized fuel oil is housed between described blender and interior pipe.The utility model has the advantages such as structure is simple, fuel oil atomization particle diameter is little, atomizing particle size good evenness, adjustment ratio are large, Alevaire consumption is low, noise is little, good energy-conserving effect.
Description
Technical field
The utility model relates to field of combustion equipment, is specially a kind of multimachine reason composite atomizing fuel nozzle structure.
Background technology
Utilize mechanical energy by burner before fuel-oil atmozation refers to oil fuel burning or by means of the energy of other media, fuel oil become the process of vaporific oil droplet.The quality of fuel atomization effect directly affects the fired state of fuel oil and the thermal efficiency of equipment.The atomizing effect of fuel oil depends primarily on the character of fuel oil itself and the structure of burner.
At present, the atomizing type that most domestic oil burner uses is pressure atomization and mechanical atomization, and these atomization techniques exist some shortcomings, and as burner easily blocks and coking, require higher to mechanical energy, combustion efficiency is bad, and atomizing type is single.
Such as, the one typical case oil-return type mechanical atomization spray nozzle structure extensively adopted at present, as shown in Figure 1, its operation principle is: the oily stream after oil pump boosting is introduced into each aperture of splitter, converge in corresponding annular channel again, flow through the tangential slot of swirling flow atomizing sheet again, form High Rotation Speed, penetrate finally by spray orifice and be atomized into droplet cluster; Wherein excess fuel is through spill port reuse.This technical disadvantages is: oil pressure needed for fuel-oil atmozation is very large, and oil pressure and the positive correlation of fuel oil viscosity size, energy consumption is larger; Fuel-oil atmozation particle diameter and the uniformity inadequate; Noise is large; Fuel oil regulates less than very.Chinese patent CN201210299721.8 discloses a kind of internal-mixing gas atomization fuel nozzle, and it is not good that this fuel nozzle result still exists atomizing effect in actual use, insufficient problem of burning.
Such as, a kind of typical steam atomizing nozzle structure that application is more at present, as shown in Figure 2, its operation principle is: oil stream enters mix aperture by oilhole, steam vent respectively with high velocity vapor and collides, there is violent momentum and mass exchange, thus overcome the surface tension of drop, make oil broken and spray.This technical disadvantages is: the more difficult acquisition of steam, and cost is higher, uses under being applicable to Large Copacity situation; Steam pipework insulation and maintenance are not easily; Nozzle decay resistance requires higher; Steam, as atomizing medium, defines a kind of impurity while taking away heat; Meanwhile, during this nozzle arrangements work, noise is larger.
Utility model content
Thin not in order to overcome existing fuel nozzle atomized particle size, the problems such as size distribution is uneven, and atomization energy consumption is large, atomizing type is single, the utility model aims to provide the combination of one kind of multiple atomization mechanism, atomizing effect is good, energy consumption is little, and structure is simple, fuel atomizer easy to use.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of multimachine reason composite atomizing fuel nozzle structure, its design feature is: comprise
Interior pipe, this interior pipe is communicated with fuel filler and as fuel gallery;
Outer tube, this outer tube fills on inner pipe and form atomizing medium passage between outer tube and interior pipe, the tube wall of this outer tube has the atomizing medium entrance with atomizing medium channel connection;
Blender, this blender is positioned at discharging opening one end of atomizing medium passage, and with described fuel gallery and atomizing medium channel connection; And
Nozzle, this nozzle being contained in outer tube one end is positioned at the discharge port end of blender, and the front end of nozzle has multiple spray orifice;
The atomization structure be atomized fuel oil is housed between described blender and interior pipe, the inner chamber of described blender is as the hybrid chamber of fuel oil and atomizing medium Mixed Zone, form atomizing medium secondary passage between this blender and atomization structure, this atomizing medium secondary passage is communicated with described hybrid chamber and described atomizing medium passage.
Technical scheme below for improving further the utility model:
Preferably, described atomization structure comprises the splitter, spinning disk, atomizing piece and the one-level spray chamber that are connected to interior pipe discharging opening in turn; Described splitter, spinning disk and atomizing piece and one-level spray chamber form first order mechanical atomization device; Form described atomizing medium secondary passage between described one-level spray chamber and blender, this atomizing medium secondary passage enters the passage of described hybrid chamber as atomizing medium.
Thus, described splitter, spinning disk, atomizing piece and one-level spray chamber form first order atomising device, atomizing type is mechanical pressure atomization, its operation principle is: fuel under high pressure enters spinning disk after current divider shunting, eddy flow process intermediate fuel oil produces liquid film by the effect of centrifugal force, is atomized by air fragmentation.
Described blender is the second level and third level atomising device, second level atomizing type is pneumatic nebulization, its operation principle is: high-pressure atomization medium enters hybrid chamber by atomizing medium secondary passage, produces shear action, fuel oil is atomized further to the fuel oil oil column come from one-level spray chamber.Third level atomizing type is ultrasonic atomization, and its operation principle is: the speed of high-pressure atomization medium is very high, and be supersonic speed, fuel oil is carried out ultrasonic atomization by supersonic speed atomizing medium in hybrid chamber.
The second level atomization and the third level atomization can regard as simultaneously generation and without obvious sequencing.Fuel oil, after the accumulation of three grades of atomizations, can make that its atomizing particle size is less, atomization uniformity is better.
One end, described fuel gallery is communicated with described fuel filler, and the central axis upright of this fuel filler axis and described fuel gallery; One end of the close described fuel filler of described atomizing medium passage is communicated with described atomizing medium entrance, and the central axis upright of this atomizing medium inlet axis and described fuel gallery.
Disassembling cleaning mouth pad and cleaning plug screw are equipped with in one end of described outer tube faces away from nozzle, when needing cleaning fuel gallery or atomizing medium passage, mechanically or the mode passing into high pressure air internal-mixing atomizing fuel nozzle structure is cleaned and unimpeded.
Preferably, described fuel gallery and atomizing medium channel coaxial are arranged.
Adding man-hour, preferred described spinning disk and the as a whole parts of described atomizing piece.
Described spray orifice has multiple, and each spray orifice axis of symmetry becomes 0 ° of-60 ° of angle with the axis of described interior pipe.Thus, form larger atomization cone angle, increase mist of oil area, be conducive to subsequent combustion.
Atomizing medium described in the utility model is compressed air, industrial oxygen or oxygen-enriched air.
The utility model multimachine reason composite atomizing fuel nozzle structure makes fuel oil and atomizing medium in the internal mix of nozzle, respectively by mechanical pressure atomization, pneumatic nebulization and ultrasonic atomization three grades atomization, the droplet cluster that fuel oil atomization becomes diameter tiny, compared with traditional single-stage atomizer, its atomizing particle size is less, the uniformity is better, is more conducive to burning, and atomization power consumption is little.
Compared with prior art, the beneficial effects of the utility model are: the utility model utilizes mechanical pressure respectively, pneumatic, ultrasonic wave three kinds of different atomization mechanisms are atomized fuel oil, compared with traditional single-stage or multistage atomizing, by multistage atomizing with multiple atomization mechanism is ingenious combines, under identical original power, granularity can be obtained thinner, the better atomized drop group of the uniformity, the scope of application wants wide, full-bodied fuel oil can be atomized, as heavy oil, residual oil etc., therefore, follow-up oil inflame can present more uniform temperature field etc., obtain higher efficiency of combustion.In addition, the utility model has the advantages such as structure is simple, easy to use, adjustment ratio is large, Alevaire consumption is low, noise is little, good energy-conserving effect.
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is a kind of typical oil-return type mechanical atomization spray nozzle structure;
Fig. 2 is a kind of typical steam atomizing nozzle structure;
Fig. 3 is the structure principle chart of the utility model embodiment;
Fig. 4 is the nozzle arrangements figure of the utility model embodiment;
Fig. 5 is the left view of Fig. 4.
In the drawings
1-fuel gallery; 2-atomizing medium passage; 3-fuel filler; 4-atomizing medium entrance; 5-splitter; 6-spinning disk; 7-atomizing piece; 8-one-level spray chamber; 9-blender; 10-hybrid chamber; 11-atomizing medium secondary passage; 12-nozzle; 13-Butterworth Hatch pad; 14-cleans plug screw; 15-central axis; 16-gas ket; 17-overlaps mouth; The outer oil inlet pipe of 18-; Oil return pipe in 19-; 20-nozzle head; 21-packing ring; 22-steam pipe; 23-oilhole; 24-steam vent; 25-mix aperture.
Detailed description of the invention
A kind of multimachine reason atomizing fuel nozzle structure, as shown in Figure 3, fuel gallery 1 and atomizing medium passage 2 coaxially arranged, axis 15 centered by this axis, one end, fuel gallery 1 connects fuel filler 3, the other end connects splitter 5 successively, spinning disk 6, atomizing piece 7 and one-level spray chamber 8, atomizing medium passage 2 one end connects atomizing medium entrance 4, the other end connects blender 9, blender one end connects atomizing medium passage 2 and one-level spray chamber 8, the other end connects nozzle 12, blender 9 central authorities are hybrid chamber 10, and blender 9 and one-level spray chamber 8 form atomizing medium secondary passage 11, for atomizing medium enters the passage of hybrid chamber 10.
First order atomization is mechanical pressure atomization: fuel oil and atomizing medium enter fuel gallery 1 and atomizing medium passage 2 respectively by fuel filler 3 and atomizing medium entrance 4, high pressure fuel flows through spinning disk 6 after splitter 5 is shunted, because the effect of centrifugal force produces liquid film, be atomized by air fragmentation, enter one-level spray chamber 8 through atomizing piece 7, complete first order atomization.
Second level atomization is pneumatic nebulization: the fuel oil completed after first order atomization enters hybrid chamber 10 from one-level spray chamber 8, simultaneously, atomizing medium is from atomizing medium passage 2, and enter hybrid chamber 10 by the atomizing medium secondary passage 11 angled with central axis 15, shear action is produced to the fuel oil post having carried out first order atomization from one-level spray chamber 8, fuel oil is atomized further.
Third level atomization is ultrasonic atomization: the state of atomizing medium generally in high-pressure atomization gas, speed is very high, is supersonic speed, therefore, fuel oil is atomized while medium carries out pneumatic nebulization in hybrid chamber, also can be carried out ultrasonic atomization by supersonic atomizing medium.
Mist of oil after three grades of atomizations is from hybrid chamber 10 by nozzle 12 ejection at a high speed, and jet hole is porous, and each hole axis of symmetry and central axis 15 angled, it is 0 ° to 60 °, such energy forms larger atomization cone angle, increases mist of oil area, is conducive to subsequent combustion.
The structure cleaning of the utility model multimachine reason composite atomizing fuel nozzle and unimpeded method are: disassembling cleaning mouth pad 13 and clean plug screw 14, mechanically or the mode passing into high pressure air internal-mixing atomizing fuel nozzle structure is cleaned and unimpeded.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Claims (7)
1. a multimachine reason composite atomizing fuel nozzle structure, is characterized in that: comprise
Interior pipe, this interior pipe is communicated with fuel filler (3) and as fuel gallery (1);
Outer tube, this outer tube fills on inner pipe and between outer tube and interior pipe, forms atomizing medium passage (2), the tube wall of this outer tube has the atomizing medium entrance (4) be communicated with atomizing medium passage (2);
Blender (9), this blender (9) is positioned at discharging opening one end of atomizing medium passage (2), and is communicated with atomizing medium passage (2) with described fuel gallery (1); And
Nozzle (12), this nozzle (12) being contained in outer tube one end is positioned at the discharge port end of blender (9), and the front end of nozzle (12) has multiple spray orifice;
Between described blender (9) and interior pipe, the atomization structure be atomized fuel oil is housed, the inner chamber of described blender (9) is as the hybrid chamber (10) of fuel oil and atomizing medium Mixed Zone, form atomizing medium secondary passage (11) between this blender (9) and atomization structure, this atomizing medium secondary passage (11) is communicated with described hybrid chamber (10) and described atomizing medium passage (2).
2. multimachine reason composite atomizing fuel nozzle structure according to claim 1, it is characterized in that, described atomization structure comprises the splitter (5), spinning disk (6), atomizing piece (7) and the one-level spray chamber (8) that are connected to interior pipe discharging opening in turn; Described splitter (5), spinning disk (6) and atomizing piece (7) and one-level spray chamber (8) form first order mechanical atomization device; Form described atomizing medium secondary passage (11) between described one-level spray chamber (8) and blender (9), this atomizing medium secondary passage (11) enters the passage of described hybrid chamber (8) as atomizing medium.
3. multimachine reason composite atomizing fuel nozzle structure according to claim 1 and 2, it is characterized in that, described fuel gallery (1) one end is communicated with described fuel filler (3), and this fuel filler (3) axis is vertical with the central axis (15) of described fuel gallery (1); One end of the close described fuel filler (3) of described atomizing medium passage (2) is communicated with described atomizing medium entrance (4), and this atomizing medium entrance (4) axis is vertical with the central axis (15) of described fuel gallery (1).
4. multimachine reason composite atomizing fuel nozzle structure according to claim 1, it is characterized in that, disassembling cleaning mouth pad (13) and cleaning plug screw (14) are equipped with in one end of described outer tube faces away from nozzle (12).
5. multimachine according to claim 1 reason composite atomizing fuel nozzle structure, is characterized in that, described fuel gallery (1) and atomizing medium passage (2) coaxially arranged.
6. multimachine reason composite atomizing fuel nozzle structure according to claim 2, is characterized in that, described spinning disk (6) and described atomizing piece (7) as a whole parts.
7. multimachine reason composite atomizing fuel nozzle structure according to claim 1, it is characterized in that, described spray orifice has multiple, and each spray orifice axis of symmetry becomes 0 ° of-60 ° of angle with the axis of described interior pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743064.6U CN204329008U (en) | 2014-12-01 | 2014-12-01 | A kind of multimachine reason composite atomizing fuel nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743064.6U CN204329008U (en) | 2014-12-01 | 2014-12-01 | A kind of multimachine reason composite atomizing fuel nozzle structure |
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| Publication Number | Publication Date |
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| CN204329008U true CN204329008U (en) | 2015-05-13 |
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| CN201420743064.6U Expired - Fee Related CN204329008U (en) | 2014-12-01 | 2014-12-01 | A kind of multimachine reason composite atomizing fuel nozzle structure |
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| CN (1) | CN204329008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566363A (en) * | 2014-12-01 | 2015-04-29 | 长沙恒威热能科技有限公司 | Multi-mechanism composite atomized fuel nozzle structure |
| CN109404901A (en) * | 2019-01-02 | 2019-03-01 | 南京博思闻科技有限公司 | Ultrasonic wave diesel oil atomization nozzle and the burner for using the nozzle |
| CN111878807A (en) * | 2020-08-04 | 2020-11-03 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
-
2014
- 2014-12-01 CN CN201420743064.6U patent/CN204329008U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566363A (en) * | 2014-12-01 | 2015-04-29 | 长沙恒威热能科技有限公司 | Multi-mechanism composite atomized fuel nozzle structure |
| CN109404901A (en) * | 2019-01-02 | 2019-03-01 | 南京博思闻科技有限公司 | Ultrasonic wave diesel oil atomization nozzle and the burner for using the nozzle |
| CN111878807A (en) * | 2020-08-04 | 2020-11-03 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
| CN111878807B (en) * | 2020-08-04 | 2022-11-22 | 上海工业锅炉研究所有限公司 | Biodiesel nozzle suitable for industrial boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20171201 |