CN204026663U - Back-heating type turbulent burner - Google Patents
Back-heating type turbulent burner Download PDFInfo
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- CN204026663U CN204026663U CN201420213721.6U CN201420213721U CN204026663U CN 204026663 U CN204026663 U CN 204026663U CN 201420213721 U CN201420213721 U CN 201420213721U CN 204026663 U CN204026663 U CN 204026663U
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- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 32
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- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
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- Combustion Of Fluid Fuel (AREA)
Abstract
A kind of back-heating type turbulent burner for Multi liquid fuel, mainly by spool type nozzle (1), drive end bearing bracket (2), combustion reaction cavity outer wall (3), recuperative chamber (4), igniter plug (5), recuperative chamber outer wall (6), combustion reaction chamber (7), combustion gas outlet (8), rear end cap (9), compression working medium import (10), front end guiding gutter (11) He Qiao road round (12) composition, wherein: the working media that is entered combustion reaction chamber (7) by front end guiding gutter (11) produces the eddy flow gravitational field of 3000g, thereby improves efficiency of combustion; Because fuel reaction time in combustion reaction chamber (7) is longer, thus very low to the technical requirement of fuel, be applicable to pluralities of fuel; In addition, the working media of forced circulation has formed the closed cycle of heat energy, thereby has reduced the conduction loss of heat energy.Structure of the present utility model adopts good corrosion resistant material, can extensively adopt chemicals fuel and inferior fuel, and utility model is rational in infrastructure simple, cheap, and working service and repairing are simple and easy.
Description
Technical field
The utility model relates to a kind of burner, belongs to heat energy, heat engine, dynamic power machine field, especially by the chemical energy in liquid fuel by combustion reaction, produce HTHP heat energy, be then converted to the burner of mechanical energy by heat engine or dynamic power machine.
Background technology
The burner of gas turbine, fanjet and oil burning boiler, pulverized coal fired boiler adopts whirlwind, swirl flow combustion technology more at present, in order to improve efficiency of combustion, to reaching the object of energy-saving, emission-reducing, environment friendly.
Vortex burner is conventionally with the eddy flow field that straightener(stator) blade was formed, and the effect of its gravitational field is effectively also limited, still can not meet further technical requirement.
Therefore, designing a kind of burner and can improve efficiency of combustion, reduce the not discharge of complete reaction thing, can reduce again the heat-energy losses that burner large gradient temperature field and the conduction of material heat cause, is very necessary.
Summary of the invention
Described in background technology, the purpose of this utility model is to avoid above-mentioned deficiency, provide a kind of Strong Gravitational Field technology by separation technology field to introduce turbulent burner, make the inner gravitational field that produces thousands of times of the earth's core gravity of burner, act on the fuel droplet of atomization, improve vaporescence, improve efficiency of combustion, reduce the not discharge of complete reaction thing; The heat exchange in thermal technology field, backheat technology are applied to the structural design of burner simultaneously, construct by backheat, reduce as much as possible the heat-energy losses that burner large gradient temperature field and the conduction of material heat cause, and can be used in the burner of Multi liquid fuel.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of burner for Multi liquid fuel, mainly by spool type nozzle (1), drive end bearing bracket (2), combustion reaction cavity outer wall (3), recuperative chamber (4), igniter plug (5), recuperative chamber outer wall (6), combustion reaction chamber (7), combustion gas outlet (8), rear end cap (9), compression working medium import (10), front end guiding gutter (11) He Qiao road round (12) composition, wherein: working media path and combustion gas outlet (8) are isolated mutually, between the outer wall in combustion reaction chamber (7) and shell, form recuperative chamber (4), working media path makes working media flow to recuperative chamber (4), bridge road round (12) is positioned between compression working medium import (10) and recuperative chamber (4), combustion gas outlet (8) makes high temperature, high-pressure gas enters dynamic power machine acting, combustion gas outlet (8) external diameter and combustion reaction chamber (7) external diameter are tangent, combustion gas outlet (8) rotation direction is consistent with front end guiding gutter (11) rotation direction.
Further, between the outer wall that is configured to combustion reaction chamber (7) of described Qiao road round (12) and shell, form non-interference passage.
Further, described front end guiding gutter (11) is 3 to 12 by its quantity of circumferential distribution.
Further, described combustion reaction chamber (7) is cylindrical space, and the proportionate relationship of its length and diameter is 2 to 5 times.
Owing to adopting technique scheme, the utlity model has following advantage and effect:
1, the utility model can adapt to (certain) heat engine or dynamic power machine very simply, makes heat engine or dynamic power machine miniaturization, and wide range of services is among people's production and life;
2, the utility model is by the rotational flow face of working media and form the gravitational field of 3000 times of the earth's core gravity, under this gravitational field effect, the fuel fog that sprays into combustion reaction chamber 7 drops in the utmost point short time and completes and vaporize and drift, thinner droplet completes vaporizing combustion process in 2 milliseconds, drop in and do not complete before vaporization by floating to 7 cylindrical shape wall surfaces, combustion reaction chamber under Strong Gravitational Field effect compared with dense fog, drop in along completing carburation by evaporation process and combustion reaction in wall surface creep compared with dense fog, in approximately 5 to 15 milliseconds of this processes;
3, it is longer that fuel of the present utility model carries out time of chemical reaction in combustion chamber, can reach 25 to 50 milliseconds, for 5 to 10 times, internal combustion engine, for 10 to 20 times of gas turbine or fanjet, fuel combustion chemical time is abundant, efficiency of combustion is high, and the material of complete reaction is as not few in the discharge such as carbon monoxide, hydrocarbon;
4, the utility model adopts high temperature nonmetallic materials, and the coefficient of heat conduction of its material own is little, and needn't take to force cooling provision, thereby reduces hot loss of energy;
5, the utility model recuperative chamber structure, is conducted by combustion reaction chamber 7 wall materials the heat energy with the circulation of working media and is brought back in combustion reaction chamber again, forms the closed cycle of thermal energy conduction diffusion, reduces the heat-energy losses causing because of the conduction of material heat;
6, Starting mode of the present utility model is that electric heating ignites, and igniter plug is conductivity ceramics material, is heated to 800 DEG C after energising, spray into the fuel droplet in combustion chamber in order to ignite, the working cycles each time of burner, only carries out one-shot operation, is then continuous burning work;
7, combustion reaction of the present utility model chamber 7 is a cylindrical space, is beneficial to rotatablely moving of working media air-flow, and the draw ratio of combustion chamber should not be less than 2, also should not be greater than 5, to maintain the stable of eddy flow field; The volume (L) of combustion chamber is 16 to 1/25th with flow (L/s) proportionate relationship of working media, to ensure the abundant combustion reaction time of fuel and working media;
8, due to the effect of strong gravity eddy flow field and the design of longer combustion reaction time, the utility model is not strict to the technical requirement of fuel, can be applicable to Multi liquid fuel, all can use as long as have the liquid fuel of certain chemical energy calorific value;
9, the utility model is made up of high temperature nonmetallic materials, has very strong decay resistance, is applicable to chemical dangerous goods fuel and inferior fuel that corrosivity is very strong.
Brief description of the drawings
Fig. 1 a is the cross-sectional schematic of the utility model structure;
Fig. 1 b is the axial schematic diagram of the utility model structure;
Fig. 2 is the utility model workflow schematic diagram;
Fig. 3 is the energy-conservation function schematic diagram of backheat of the present utility model;
Fig. 4 is the schematic perspective view of the utility model structure.
Detailed description of the invention
A kind of burner for Multi liquid fuel, mainly by spool type nozzle 1, drive end bearing bracket 2, combustion reaction cavity outer wall 3, recuperative chamber 4, igniter plug 5, recuperative chamber outer wall 6, combustion reaction chamber 7, combustion gas outlet 8, rear end cap 9, compression working medium import 10, front end guiding gutter 11He Qiao road round 12 forms, wherein: working media path and combustion gas outlet 8 are isolated mutually, between the outer wall in combustion reaction chamber 7 and shell, form recuperative chamber 4, bridge road round 12 is between compression working medium import 10 and recuperative chamber 4, between the outer wall that is configured to combustion reaction chamber 7 of bridge road round 12 and shell, form non-interference passage, working media path makes working media flow to recuperative chamber 4, combustion gas is discharged 8 and is made high temperature, high-pressure gas enters dynamic power machine acting, combustion gas outlet 8 external diameters and combustion reaction chamber 7 external diameters are tangent, combustion gas outlet 8 rotation directions are consistent with front end guiding gutter 11 rotation directions, described front end guiding gutter 11 is 3 to 12 by its quantity of circumferential distribution, described combustion reaction chamber 7 is cylindrical space, and the proportionate relationship of its length and diameter is 2 to 5 times.
The structure of burner is as shown in Figure 1: spool type nozzle 1, the drive end bearing bracket 2 of burner, recuperative chamber 4, combustion reaction chamber 7 and combustion reaction cavity outer wall 3, working media path 6, the combustion gas outlet 8 of HTHP, the rear end cap 9 of burner and compression working medium import 10, 11 is that the guiding gutter that is positioned at burner front end produces strong gravity eddy flow field with guiding working medium, 12 for being positioned at Qiao road, burner rear end round, in the syndeton of bridge road round 12 between combustion reaction cavity outer wall 3 and recuperative chamber outer wall 6, form the path of working media, and reserve passage for high-temperature high-pressure fuel gas outlet 8, 5 is the igniter plug of startup work, the recuperative chamber 4 Yu Qiao road rounds 12 of burner communicate, and the guiding gutter 11 that leads to excitation working medium swirling motion forms Strong Gravitational Field.
Three high temperature non-metallic member of back-heating type turbulent burner, drive end bearing bracket 2, rear end cap 9, and burner body connects fastening by drift bolt nut.
The workflow of burner is shown by Fig. 2:
Compressed working media 20 is by rear end cap compression working medium import 10, tangentially enter combustion reaction chamber 7 by bridge road round 12 and recuperative chamber 4 by one group of guiding gutter 11 of burner front end, working media tangentially enters behind combustion reaction chamber 7 with the speed of 26 to 28 meters per second, by violent the rotatablely moving and produced the gravitational field of approximately 3000 times of the earth's core gravity of air-flow, be ejected under the effect in Strong Gravitational Field of fuel droplet that mist droplet particle size in combustion reaction chamber 7 do not wait via fuel nozzle, the very fast carburation by evaporation burning of thinner droplet, be subject to the effect of gravitational field not obvious, thicker fuel droplet is drifted about by Strong Gravitational Field effect and is attached to combustion chamber outer wall 3, thicker fuel droplet is along just carburation by evaporation burning very soon in combustion chamber outer wall 3 crawling process, can in atmosphere, not form Particulate Pollution with gas emission, thereby also improve the efficiency of combustion of fuel.
The high-temperature high-pressure fuel gas that working media and fuel generation combustion reaction generate is the interior combustion gas outlet 8 that moves to 7 rear portions, combustion reaction chamber along hand of helix in combustion reaction chamber 7, exports heat engine to or dynamic power machine is converted into mechanical energy.
The start-up course of burner has been worked in coordination with by being arranged on the fuel nozzle 1 on drive end bearing bracket 2 and the igniter plug 5 being arranged on burner body.First by logical igniter plug low-voltage dc power supply, when igniter plug tip temperature reaches 800 DEG C after 1 to 2 second, open petrolift motor, by fuel nozzle, to the tapered atomized fuel droplet of the interior injection in combustion reaction chamber 7, work takes fire after fuel droplet chance igniter plug high temperature burning things which may cause a fire disaster.When after the normal work of burner, can close igniter plug power supply, stop igniter plug work.
When closing after petrolift power supply, fuel stops spraying, and burner quits work.After burner quits work, the inertia of dynamic power machine is pressed into new working media in burner gas replacement is fallen, for start ready condition next time.
As shown in Figure 3, the high temperature heat of the combustion reaction chamber 7 interior generations of burner, inevitably along combustion reaction cavity outer wall 3 materials to gradient lower one to conduction, causes more heat-energy losses.
For reducing the heat-energy losses being caused by material heat conduction, adopt by middle temperature working media flow through that combustion reaction cavity outer wall 3 is that recuperative chamber 4 is lowered the temperature, the practice of heat exchange, backheat.Force to flow through bridge road round 12 and recuperative chamber 4 by middle temperature working media, working media temperature is raise, the working media of higher temperature brings back to heat energy in combustion chamber 7, forms continuously the closed cycle of heat energy.In figure, black arrow is the direction of heat energy diffusion in large gradient moisture field, when the thermal energy conduction embodying with thermal capacitance and temperature in burner materials is during to the recuperative chamber 4 in combustion reaction cavity outer wall 3 outsides, the working media of middle temperature is as shown in grey arrow, by the high-temperature heating that is conducted out, also reduced the temperature of combustion reaction cavity outer wall 3 simultaneously, the working media temperature of middle temperature is pressed in combustion chamber 7 along guiding gutter 11 while rising, little with the heat energy of the temperature place conduction loss of low gradient by recuperative chamber outer wall 6.
In addition, the effect of burner is to be one of part of certain heat engine or power machinery system, its application be for heat engine or dynamic power machine supporting.
The part manufacturing process of burner: by dusty material by forcing press and the compressing high temperature sintering that carries out again of mould.
For the simple drive end bearing bracket of shape matching and rear end cap part, can be directly by the compressing high temperature sintering that carries out again of mould.For the burner body of shape matching complexity, can be by die mould again after decomposing inside and outside it.Then after finishing processing, abandon to be fitted together and carry out sintering.By the roughing of igniter plug taper hole, reserved before sintering.The screwed hole of the installation nozzle on drive end bearing bracket also will be reserved.
Between burner body and drive end bearing bracket and rear end cap, be sealed into flat seal.The surface roughness Ra of sealing plane need to reach below 0.4 μ m, therefore needs to adopt diamond cutter high speed and precision mirror grinding.
Igniter plug taper hole on burner body need to grind with igniter plug preparation, ensures good sealing and does not possess interchangeability.
The assembly technology of burner: the assembling of parts is fastening to be made up of drift bolt, heat insulating mattress, split ring packing ring, nut.By each assembly parts arrange correct after, screw symmetrically four nuts with torque spanner.For ensure tensile force symmetrically, need to divide three-wheel to four-wheel by angular direction is torqued-up to moment requirement gradually.
Assembling detects: the parts that assembling is completed are installed on special detection device, connects high pressure gas pipeline, progressively air pressure is raised to 5.0MPa, checks stressed and leaks.
The application test of burner: application test need to complete jointly with heat engine or power machinery system.
Claims (4)
1. a back-heating type turbulent burner, mainly by spool type nozzle (1), drive end bearing bracket (2), combustion reaction cavity outer wall (3), recuperative chamber (4), igniter plug (5), working media path (6), combustion reaction chamber (7), combustion gas outlet (8), rear end cap (9), compression working medium import (10), front end guiding gutter (11) He Qiao road round (12) composition, it is characterized in that: working media path (6) and combustion gas outlet (8) are isolated mutually, between the outer wall in combustion reaction chamber (7) and shell, form recuperative chamber (4), working media path (6) makes working media flow to recuperative chamber (4), bridge road round (12) is positioned between compression working medium import (10) and recuperative chamber (4), combustion gas outlet (8) makes high temperature, high-pressure gas enters dynamic power machine acting, combustion gas outlet (8) external diameter and combustion reaction chamber (7) external diameter are tangent, combustion gas outlet (8) rotation direction is consistent with front end guiding gutter (11) rotation direction.
2. back-heating type turbulent burner according to claim 1, is characterized in that: between the outer wall that is configured to combustion reaction chamber (7) of described Qiao road round (12) and shell, form non-interference passage.
3. back-heating type turbulent burner according to claim 1, is characterized in that: described front end guiding gutter (11) is 3 to 12 by its quantity of circumferential distribution.
4. back-heating type turbulent burner according to claim 1, is characterized in that: described combustion reaction chamber (7) is cylindrical space, and the proportionate relationship of its length and diameter is 2 to 5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213721.6U CN204026663U (en) | 2014-04-29 | 2014-04-29 | Back-heating type turbulent burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213721.6U CN204026663U (en) | 2014-04-29 | 2014-04-29 | Back-heating type turbulent burner |
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| Publication Number | Publication Date |
|---|---|
| CN204026663U true CN204026663U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420213721.6U Expired - Fee Related CN204026663U (en) | 2014-04-29 | 2014-04-29 | Back-heating type turbulent burner |
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| Country | Link |
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| CN (1) | CN204026663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235841A (en) * | 2014-04-29 | 2014-12-24 | 北京发源动力机械设计研究有限公司 | Regenerative swirl burner |
| CN114877324A (en) * | 2022-03-31 | 2022-08-09 | 西北工业大学 | Underwater combustion chamber capable of being repeatedly started |
-
2014
- 2014-04-29 CN CN201420213721.6U patent/CN204026663U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235841A (en) * | 2014-04-29 | 2014-12-24 | 北京发源动力机械设计研究有限公司 | Regenerative swirl burner |
| CN114877324A (en) * | 2022-03-31 | 2022-08-09 | 西北工业大学 | Underwater combustion chamber capable of being repeatedly started |
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| 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 |
Granted publication date: 20141217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |