CN206191637U - Glowing room for stirling - Google Patents
Glowing room for stirling Download PDFInfo
- Publication number
- CN206191637U CN206191637U CN201621102902.7U CN201621102902U CN206191637U CN 206191637 U CN206191637 U CN 206191637U CN 201621102902 U CN201621102902 U CN 201621102902U CN 206191637 U CN206191637 U CN 206191637U
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- Prior art keywords
- heat exchanger
- tube
- stirling engine
- oxidant
- mixing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a glowing room for stirling, including combustion chamber casing, combustor and heat exchanger, the casing comprises last casing and lower casing two parts, is provided with the blast pipe at the top of casing, and the bottom sets up a heat exchanger barrel, the casing fuses with the top of heat exchanger barrel down, the top of heat exchanger barrel, lower casing and the epitheca bodily form become the bags, set up stirling's hot chamber at heat exchanger cylinder bottom, the barrel top keeps apart combustion chamber and hot chamber, from top to bottom be equipped with combustor, heat exchanger in proper order in the casing, the heat exchanger includes the heat exchange tube that the round type of falling U was arranged, the one end of heat exchange tube and stirling's hot chamber intercommunication, and the other end and regenerator intercommunication form endless working medium system, implementation method burns including using foretell combustion chamber, the utility model has the characteristics of combustion chamber temperature is even, and combustion efficiency is high, safe and reliable, it uses especially to be fit for stirling.
Description
Technical field
The utility model is related to Stirling engine technology field, especially with respect to a kind of Stirling engine flameless combustion
Room.
Background technology
Stirling engine (Stirling Engine) is that a kind of enclosed extraction cycle of utilization extra power heating starts
Machine, the features such as it has low efficiency high, noise, small pollution and energy wide adaptability.Combustion chamber is the weight of Stirling engine
Part is wanted, its function is that rationalization burns and heat exchange, the property of the efficiency and reliability of combustion chamber to Stirling engine
There can be important influence.
Have that temperature distributing disproportionation is even using the Stirling engine combustion chamber of liquid fuel at present, local temperature is too high,
The problems such as length of flame is long.Accordingly, it would be desirable to further improve Stirling engine using more advanced combustion technology burn
The efficiency and reliability of room.
Flameless combustion (Flameless Combustion) technology is a kind of new combustion technology, realizes being fired during flameless combustion
Burn indoor without partial flame presence, flameless combustion pattern has many advantages, such as ignition temperature relative to traditional combustion pattern
It is evenly distributed, discharges the enhancing of lower, radiation heat transfer and combustion noise is extremely low, these features of flameless combustion is particularly suitable for application
In Stirling engine combustion chamber.
Therefore, current Stirling engine combustion chamber problems faced is effectively solved, Stirling engine will be greatly improved
Burner efficiency and reliability.A kind of Stirling engine Flameless combuster and implementation of the application design
Utility model content
The purpose of this utility model is to provide a kind of Stirling engine Flameless combuster, can significantly improve combustion chamber
The uniformity of temperature, reduces diabatic process irreversible loss, improves Stirling engine combustion system efficiency, and reduce combustion chamber
Flame peak temperature, it is to avoid flame directly washes away hot top of chamber, while the too high heating for bringing of flame peak temperature can be solved
Device dust stratification, improves part life, it is ensured that combustion system efficiency longtime running stabilization.
The technical scheme that the utility model is provided is as follows：
A kind of Stirling engine Flameless combuster, including burning chamber shell, burner and heat exchanger,
Described housing is made up of separate upper shell and lower house two parts, and exhaust is provided with the top of housing
Pipe, and the bottom of housing is provided with a heat exchanger cylinder；Lower house is connected with the top of heat exchanger cylinder；
The top of the heat exchanger cylinder, lower house and upper shell form the bags；
In the heat exchanger cylinder lower end, the hot chamber of Stirling engine is set, the top of heat exchanger cylinder by combustion chamber and
The hot chamber of Stirling engine keeps apart；
From top to bottom it is sequentially provided with the housing for by the burner of oxidant and liquid fuel mixed combustion, with
And for the flue gas of generation of burning to be carried out the heat exchanger of heat exchange；
The burner is made up of fuel injector, air inlet tube assembly, mixing tube and cyclone；The air inlet tube assembly is arranged on
Between the inner side of the outside of the fuel injector and the blast pipe, for the entrance of oxidant；The mixing tube is arranged on described
The outside of fuel injector, and positioned at air inlet tube assembly lower section, for the flue gas that oxidant is produced with burning to be mixed；Institute
Cyclone is stated to be arranged between the outer wall of the inwall of the mixing tube and the fuel injector；
The heat exchanger includes the heat exchanger tube of a circle inverted U arrangement, one end and the Stirling engine of the heat exchanger tube
Hot chamber connection, the other end is connected with regenerator, forms the working substance system of circulation.
In the technical program, liquid fuel atomization is tiny particle by the fuel injector in the middle of the burner of setting, is passed through
The oxidant entered with the air inlet tube assembly being set on the outside of fuel injector after evaporation is mixed by mixing tube, forms flammable mixed
Clutch, the ignition point of the temperature higher than liquid fuel of combustion mixture, realizes flameless combustion, it is possible to increase Stirling in combustion zone
Combustion system of engine efficiency, and reduce flame combustion chamber peak temperature, it is to avoid flame directly washes away hot top of chamber.Pass through simultaneously
Heat exchanger is set, the flue gas of generation of burning is carried out into heat exchange, flow through a part of high-temperature flue gas outflow of the flue gas after heat exchanger tube
Combustion chamber, a part is by by volume inspiration mixing tube, realization is diluted to oxidant, heats, and participates in again in burning, shape
Into the flameless combustion of stabilization, the uniformity of chamber temperature is so ensure that, reduce diabatic process irreversible loss, moreover it is possible to solve
Certainly the too high heater dust stratification for bringing of flame peak temperature, improves part life, it is ensured that combustion system efficiency longtime running is steady
It is fixed.
Preferably, the air inlet tube assembly includes being set in the inlet manifold on the outside of the fuel injector, the inlet manifold
Lower end inner wall and the fuel injector outer wall between a collet is set, opened between the collet and inlet manifold's inwall
If an oxidant nozzle passed through for oxidant.
In the technical program, the inlet manifold of setting is mainly used for the entrance of oxidant, after by collet with
The oxidant nozzle set between air inlet inside pipe wall, oxidant is input into mixing tube, has efficiently controlled the amount of oxidant,
Improve final mixed effect.The collet for setting simultaneously can be isolated fuel injector and inlet manifold, it is to avoid temperature mistake
The service life of height influence atomizer.
Preferably, the fuel injector includes the oil inlet pipe being sequentially connected, oil nozzle junctor and fuel nozzle；
One outwardly first boss, the upper surface of the first boss and institute are set on the outer wall of the oil nozzle junctor
The bottom end contact of collet is stated, the lower surface of the first boss is connected with the cyclone.
In the technical program, a first boss is set on the oil nozzle junctor outer wall of setting, using first boss realize to every
The restriction of hot jacket, improves the mounting stability of collet.
Preferably, the quantity of the oxidant nozzle be 4~6, each oxidant nozzle a diameter of 0.8~
1.2mm, and 4~6 oxidant nozzles form a distribution by center of circle radial distribution of the central axis of the inlet manifold
The D of circle, the pitch circle diameter d and mixed tube diameter1Ratio d/D1=0.75~0.9.
In the technical program, the quantity of oxidant nozzle is arranged on 4~6, and the diameter of each is in 0.8~1.2mm.
Purpose is to ensure there are enough exhaust gas volumns, further improves mixed effect.
Preferably, the mixing tube is combined by diversion section, mixing section, diffuser constitute from top to down successively, and described mixed
Close pipe to be attached with the inwall of the housing by several connection sheets, several described connection sheets are radially distributed in described mixed
Close on the outer wall of pipe.
In the technical program, the mixing tube of setting by the diversion section for flue gas to be imported, by high-temperature flue gas and oxidant
The mixing section for being mixed, and diffuser, the atomizing of liquid fuel that the angle and fuel injector that ensure that air-flow gush out
Cone angle matches.The connection sheet by setting realizes the connection of mixing tube and housing simultaneously.
Preferably, an inwardly projecting second boss is set on the inwall of the mixing section, and the second boss is used for branch
Support the cyclone；
And/or；
The length L of the mixing section and diameter D of the mixing section2Ratio L/D2=0.8~1.2；
And/or；
The diffuser is expanded outwardly away from one end of the mixing section, and expansion angle is at 5~10 degree；
And/or；
The top of the oxidant nozzle is entrance, and bottom is outlet；The oxidant nozzle is exported to the mixing
The distance between entrance of section is more than 0.7D1。
Preferably, the cyclone is axial swirler, swirling number Sn>0.6.
In the technical program, the cyclone of setting preferably axially cyclone is not only simple in structure, good separating effect, more
Excellent is practical.
Preferably, the heat exchanger tube is inverted U-shaped structure, and the heat exchanger tube of the U-shape structure is near the inner walls side
It is fin side, relative side is tube side；The heat exchanger tube of the fin side is connected with regenerator, the heat exchanger tube and Stirling of tube side
Engine thermal chamber connects, and arranges fin on fin side on heat exchanger tube, and fin welds together with heat exchanger tube, to improve away from combustion
The heat transfer effect of the heat exchanger tube at Shao Shi centers.
In the technical program, heat exchanger tube is set to U-shape structure, and set on the fin side of the heat exchanger tube of U-shape structure
Fin, improve in outside heat exchange uniformity, improve heat exchanger performance.
The utility model provide a kind of Stirling engine with Flameless combuster compared with prior art, the utility model
Following at least one beneficial effect can be brought：
1st, the utility model is coordinated using mixing tube with inlet manifold's composition injector and cyclone, realizes Si Te
The in-engine flameless combustion of woods, improves the uniformity of chamber temperature distribution, improves combustion system efficiency.Simultaneously by spray
Oily device sprays liquid fuel from centre, and surrounding ejection after cyclone mixes oxidant with high-temperature flue gas, from reducing
Flame peak temperature, it is to avoid flame directly washes away the top in Stirling engine hot chamber, saves and blast screen is set in housing,
So as to thoroughly solve the problems, such as heating tube dust stratification.
2nd, by the heat exchanger for setting in the utility model, disclosure satisfy that the flue gas produced to burning carries out heat exchange,
Ensure the uniformity of chamber temperature distribution, improve heat exchange efficiency.
3rd, in the utility model by set collet, realize between atomizer and inlet manifold and mixing tube every
Heat, it is to avoid the service life of the too high influence atomizer of temperature, meets and improves part life, it is ensured that combustion system efficiency is transported for a long time
Row stabilization.
4th, by the quantity of oxidant nozzle, and the distribution diameter of a circle that diameter and radial distribution are formed in the utility model
Size has done certain restriction, disclosure satisfy that enough exhaust gas volumns enter combustion zone, improves mixed effect, and then improve Stirling hair
Motivation combustion system efficiency.
5th, by the first boss of setting on the oil nozzle connector outer wall of fuel injector and mixing for mixing tube in the utility model
The second boss set on section inwall is closed, the fixation of cyclone is realized, the stability of run time organization can be improved.Set simultaneously
Cyclone by mix flue gas forms backflow in combustion zone, further reduction gaseous mixture in oxidant concentration, arrival nothing
The condition of flame burning.
6th, the main combination by diversion section, mixing section, diffuser of the mixing tube set in the utility model is constituted；In mixing tube
Flue gas and oxidant carry out the transmission of momentum, energy and quality, improve oxidant temperature, reduce oxygen concentration, there is provided nonflame fires
High-temperature low-oxygen condition is burnt, while ensureing the atomizing of liquid fuel cone angle that the angle of air-flow and fuel injector gush out by diffuser
Match so that mixed effect reaches most preferably.
7th, implementation behaviour of the present utility model is not only easy to operate, and effect preferably, is more optimizedly produced using burning
Flue gas carries out injection dilution to the oxygen concentration of combustion mixture, the purpose of control ignition temperature is reached, while also improving useless
Gas UTILIZATION OF VESIDUAL HEAT IN, is effectively prevented from the loss of energy in diabatic process.
Brief description of the drawings
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, a kind of Stirling engine is used
The above-mentioned characteristic of Flameless combuster, technical characteristic, advantage and its implementation are further described.
Fig. 1 is the structural representation of Stirling engine Flameless combuster of the present utility model；
Fig. 2 is the structural representation of burner in Stirling engine Flameless combuster of the present utility model；
The structure chart that Fig. 3 A are connected for atomizer in Fig. 2 with collet；
The top view that Fig. 3 B are connected for atomizer in Fig. 2 with collet；
The structural representation that Fig. 4 is connected for mixing tube in Fig. 2 with cyclone.
Drawing reference numeral explanation：
001 oxidant, 002 liquid fuel, 003 high-temperature gas mixture, 004 flue gas；
100 housings, 101 upper shells, 102 lower houses, 103 heat exchanger cylinders, 103A upper heat exchanger cylinders exchange heat under 103B
Device cylinder, 103C inner ring holes, 103D cycle holes, 104 blast pipes；
200 burners, 210 fuel injectors, 211 oil inlet pipes, 212 oil nozzle junctors, 213 fuel nozzles；220 air inlet tube assemblies,
221A inlet manifold, 221B oxidant nozzles, 221C collets；230 mixing tubes, 231A diversion sections, 231B receiver sections, on 232A
Mixation tube section, 232B eddy flows section, mixation tube section under 232C, 233 diffusers, 234 connection sheets；240 cyclones；
300 heat exchangers, 301 fin sides, 302 tube sides；
401 combustion chambers, 402 combustion zones, 403 hot chambers.
Specific embodiment
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings, and obtains other implementation methods.
To make simplified form, the part related to the utility model is only schematically show in each figure, they are not
Represent its practical structures as product.In addition, so that simplified form is readily appreciated, there is identical structure or work(in some figures
The part of energy, only symbolically depicts one of those, or only marked one of those.Herein, " one " is not only
Represent " only this ", it is also possible to represent the situation of " more than one ".
In Stirling engine of the present utility model with Flameless combuster embodiment one, referring to shown in Fig. 1-4, Yi Zhongsi
Special woods engine Flameless combuster, including burning chamber shell 100, burner 200 and heat exchanger 300, wherein, housing 100 by
Upper shell 101 and the two parts of lower house 102 composition of separation, and set on the top of housing 100, that is, upper shell 101
There is blast pipe 104, and the bottom of housing 100, that is, the bottom of lower house 102 are provided with a heat exchanger cylinder 103；Lower house
102 are connected with the top of heat exchanger cylinder 103.The top of heat exchanger cylinder 103, lower house 102 and upper shell 101 are formed
Combustion space.Wherein, the bottom of heat exchanger cylinder 103 is the hot chamber 403 of Stirling engine, and the top of heat exchanger cylinder 103 will
The hot chamber 403 of combustion chamber and Stirling engine keeps apart.
Referring to shown in Fig. 1, specifically, be from top to bottom sequentially provided with the housing 100 for setting for by oxidant 001 with
The burner 200 of the mixed combustion of liquid fuel 002, and for the flue gas 004 of generation of burning to be carried out the heat exchange of heat exchange
Device 300, heat exchanger 300 is made up of the heat-exchanging tube bundle that a circle is longitudinally arranged.One end of heat exchanger tube and the hot chamber of Stirling engine
403 connections, the other end is connected with the regenerator (not indicated in figure) of Stirling engine, and working medium flows in heat exchange tube, from
Combustion chamber 401 absorbs heat, forms a working substance system for circulation.
The burner 200 of setting is main by fuel injector 210, air inlet tube assembly 220, mixing tube 230 and the structure of cyclone 240
Into.During actual installation, air inlet tube assembly 220 is arranged between the inner side of the outside of fuel injector 210 and blast pipe 104, be used for
Exhaust passage is constituted between the entrance of oxidant 001, and air inlet tube assembly 220 and the inwall of blast pipe 104.Mixing tube 230 is set
In the outside of fuel injector 210, and positioned at the lower section of air inlet tube assembly 220, for the oxidant that will enter from air inlet tube assembly 220
001 flue gas 004 produced with burning is mixed；And cyclone 240 is arranged on the inwall and fuel injector 210 of mixing tube 230
Between outer wall, cyclone 240 makes gaseous mixture that backflow is formed in combustion zone 402, is mixed with the flue gas 004 for introducing, and enters one
Step reduces the concentration of oxidant 001 in gaseous mixture, reaches the condition of flameless combustion.
In Stirling engine of the present utility model with Flameless combuster embodiment one, referring to shown in Fig. 1,2, setting
Air inlet tube assembly 220 includes an inlet manifold 221A for being set in the outside of fuel injector 210, inside the lower end of inlet manifold 221A
One collet 221C is set between the outer wall of fuel injector 210, and is opened up between collet 221C and inlet manifold's 221A inwalls
One is used for the oxidant nozzle 221B that oxidant 001 passes through.Can be realized to fuel injector 210 by the collet 221C for setting
Protection, it is to avoid temperature is too high to be caused to damage to fuel injector 210, influences its service life.
In Stirling engine of the present utility model with Flameless combuster the present embodiment one, referring again to shown in Fig. 2, if
The fuel injector 210 put specifically includes the oil inlet pipe 211 being sequentially connected, oil nozzle junctor 212 and fuel nozzle 213, in order to avoid
The high-temperature flue gas 004 flowed through in the mixing tube 230 that the outside of fuel injector 210 is set are impacted to fuel injector 210, therefore, this Shen
Please in the bottom of separation sleeve is extended downwardly, as shown in Fig. 3 A, while be the connective stability for improving collet 221C, further
An outwardly first boss is set on the outer wall of oil nozzle connector, the upper surface of first boss is used for and collet
The bottom end contact of 221C, and the lower surface of first boss is used to be connected with cyclone 240.So by setting first is convex
Platform limitedly limits the set location of collet 221C, and causes that collet 221C plays optimal effect.
In Stirling engine of the present utility model with Flameless combuster the present embodiment two, referring to shown in Fig. 3 B, with reality
Apply example one to compare, it is preferable that the quantity of oxidant nozzle 221B is set into 4~6, the diameter of each nozzle of oxidant 001
It is 0.8~1.2mm, and 4~6 nozzles of oxidant 001 are formed by center of circle radial distribution of the central axis of inlet manifold 221A
The D of one distribution circle, pitch circle diameter d and the diameter of mixing tube 2301Ratio d/D1=0.75~0.9.So can ensure there is foot
During the amount of enough oxidants 001 always flows into mixing tube 230 from inlet manifold 221A, and with mixing tube 230 in roll up the flue gas of suction
004 is mixed, and improves mixed effect.
In Stirling engine of the present utility model with Flameless combuster the present embodiment three, referring to shown in Fig. 4, specifically
The mixing tube 230 of setting is made up of diversion section 231A, mixing section, the combination of diffuser 233 successively from top to down.Wherein, diversion section
231A is that outwards (i.e. towards the inwall of housing 100), expansion is arranged to an arc shape along mixing section, so can be by arc shape
Be directed to rising flue gas after heat exchanger 300 carries out heat exchange in mixing section by diversion section 231A, make its with from oxidation
The oxidant flowed into agent nozzle 221B is mixed.And the mixing section for setting is by the receiver section that connects from top to bottom, upper mixing
Pipe, the eddy flow section for setting cyclone 240, and lower mixation tube section connects and composes, the flue gas 004 that purpose makes to be is by from fuel oil
The high velocity air volume that nozzle 213 sprays is inhaled, and by diversion section 231A, into receiver section 231B, enters in upper mixation tube section 232A
The transmission of action amount, energy and quality, into the cyclone 240 of eddy flow section 232B, in the effect high-temperature gas mixture of cyclone 240
003 forms backflow in combustion zone 402, further reduces the concentration of oxygen in gaseous mixture, reaches the condition of flameless combustion.
In the present embodiment three, the mixing tube 230 of setting is mainly interior with housing 100 by several connection sheets 234
Wall is attached.It is that several connection sheets 234 are radially distributed on the outer wall of mixing tube 230 during actual installation, so can be with
Ensure the stability of connection, it is also possible that between adjacent connection sheet 234 after the flue gas 004 that burning is produced can rise
Continue to rise, and then realize that meet part of smoke 004 discharges from blast pipe 104, and another part flue gas 004 is by secondary volume again
Mixed with oxidant 001 in suction mixing tube 230.It should be noted that connection sheet 234 in the application particularly one end
Inwall with housing 100 is connected, the end (i.e. near the inwall side of housing 100) of the diversion section 231A of the other end and arc shape
It is attached.
In above three embodiment, it is preferable that an inwardly projecting second boss is set on the inwall of mixing section, lead to
Cross the support that the second boss for setting can be realized to cyclone 240.In the application, cyclone 240 is specifically fastened on
Between one boss and second boss, the further stability for improving connection.
In above three embodiment, it is preferable that by the length L (i.e. on Fig. 4 above-below directions) of mixing section and mixing section (i.e.
Be circular columns) diameter D2Ratio L/D2=0.8~1.2, mixing section high temperature flue gas 004 and oxidant can be effectively improved
001 mixed effect.
In above three embodiment, it is preferable that the one end by diffuser 233 away from mixing section expands outwardly, and expansion
Angle is arranged on 5~10 degree.
In above three embodiment, it is preferable that the specific top by the nozzle of oxidant 001 is the nozzle of oxidant 001
Entrance, bottom is the jet expansion of oxidant 001；The entrance of the jet expansion of oxidant 001 to mixing section (is connected with diversion section 231A
Meet place, as shown in Figure 4) the distance between more than 0.7D1。
In Stirling engine of the present utility model with Flameless combuster the present embodiment four, on the basis of above-described embodiment
On improve, the improvement is that, preferably axially cyclone 240 of cyclone 240 that will be set, and swirling number Sn>0.6, have
Effect ground reduces the concentration of oxygen in gaseous mixture, reaches the condition of flameless combustion.
In Stirling engine of the present utility model with Flameless combuster the present embodiment five, on the basis of above-described embodiment
On improve, the improvement is that, the heat exchanger tube of setting is set into U-shape structure, and the heat exchanger tube of U-shape structure is near housing 100
Inwall side is the side at fin side 301, relative side, that is, the close center of combustion chamber 401, is tube side 302.Specifically
, the heat exchanger tube bottom of fin side 301 is connected with regenerator, heat exchanger tube bottom and the hot chamber of Stirling engine of tube side 302
403 connections, and multiple fins are arranged on fin side 301 on heat exchanger tube, it is therefore an objective to improve the heat exchanger tube away from the center of combustion chamber 401
Heat transfer effect, be as far as possible the internal-external heat exchanger uniform in effect of heat exchanger 300.As shown in Figure 1, when implementing to install, in heat exchanger cylinder
The cavity wall top of the cavity of body 103 opens up circle an inner ring hole 103C, inner ring hole 103C for being connected with the heat exchanger tube of tube side 302；
Circle cycle hole 103D, cycle hole 103D a use is opened up in the cavity wall of cavity and the connection wall of the inwall of heat exchanger cylinder 103 simultaneously
Passed through in the bottom of fin side 301 and connected with regenerator.
When certain the above embodiments are used as a specific embodiment, wherein, install for convenience, by housing
100 are arranged to be connected and composed by upper shell 101 and lower house 102, and blast pipe 104 is arranged on upper shell 101, and lower casing
The lower end of body 102 is connected with heat exchanger cylinder 103.So can be in actual installation, by the He of burner 200 in housing 100
After heat exchanger 300 is installed, connected by upper shell 101 and lower house 102, and heat exchanger cylinder 103.Specifically connect
The mode of connecing has various, can be connected preferably by the mode of welding in the application, it would however also be possible to employ bolted mode connects
Connect.
Certainly in other specific embodiments, heat exchanger cylinder 103 can be further arranged to by upper
Heat exchanger cylinder 103A and lower heat exchanger cylinder 103B are connected and composed.It should be noted that upper heat exchanger cylinder 103A and lower heat exchange
The specific connected modes of device cylinder 103B have various, can be connected preferably by the mode of welding in the application.Can also be whole
Body casts or forges, then overall mach mode.
A kind of implementation is additionally provided in the utility model, is fired with nonflame using the Stirling engine of foregoing implementation
The method that room 401 is implemented is burnt, is comprised the following steps：
Oxidant 001 enters from air inlet tube assembly 220, is mixed in flue gas suction mixing tube 230 of volume 004, blended
Gas flow through backflow formed in combustion zone 402 of the cyclone 240 in housing 100；
Liquid fuel 002 enters from fuel injector 210, is mixed with the mixed gas for flowing through cyclone 240 after pervaporation
Close, form combustion mixture, combustion mixture carries out flameless combustion in combustion zone 402, the flue gas 004 for producing that burns is by heat exchange
Device 300 carries out heat exchange, and the part of flue gas 004 after exchange flows out housing 100 from blast pipe 104, and another part is inhaled by volume
Enter mixing tube 230 and mixed with the oxidant 001 entered from air inlet tube assembly 220.
In present implementation, ensure that the temperature of flue gas 004 after heat exchanger 300 carries out heat exchange exists
More than 1000K, the flue gas 004 of volume inspiration mixing tube 230 carries out volume suction by deflector, and with enter from air inlet tube assembly 220
Oxidant 001 carries out mixed diluting.
It should be noted that the oxidant 001 that is passed through is pure oxygen in the utility model, air, or pure oxygen and carbon dioxide,
The mixture of nitrogen；Liquid fuel 002 is one of diesel oil, aviation kerosine, dimethyl ether, the mixture of both or three.
It should be noted that above-described embodiment can independent assortment as needed.The above is only of the present utility model
Preferred embodiment, it is noted that for those skilled in the art, is not departing from the utility model principle
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a kind of Stirling engine Flameless combuster, including burning chamber shell, burner and heat exchanger,
It is characterized in that：
Described housing is made up of separate upper shell and lower house two parts, and blast pipe is provided with the top of housing, and
The bottom of housing is provided with a heat exchanger cylinder；Lower house is connected with the top of heat exchanger cylinder；
The top of the heat exchanger cylinder, lower house and upper shell form the bags；
The hot chamber of Stirling engine is set in the heat exchanger cylinder lower end, the top of heat exchanger cylinder is by combustion chamber and Si Te
The hot chamber of woods engine keeps apart；
From top to bottom it is sequentially provided with the housing for by the burner of oxidant and liquid fuel mixed combustion, Yi Jiyong
In the heat exchanger that the flue gas of generation of burning is carried out heat exchange；
The burner is made up of fuel injector, air inlet tube assembly, mixing tube and cyclone；The air inlet tube assembly is arranged on described
Between the inner side of the outside of fuel injector and the blast pipe, for the entrance of oxidant；The mixing tube is arranged on the oil spout
The outside of device, and positioned at air inlet tube assembly lower section, for the flue gas that oxidant is produced with burning to be mixed；The rotation
Stream device is arranged between the outer wall of the inwall of the mixing tube and the fuel injector；
The heat exchanger includes the heat exchanger tube of a circle inverted U arrangement, one end of the heat exchanger tube and the hot chamber of Stirling engine
Connection, the other end is connected with regenerator, forms the working substance system of circulation.
2. Stirling engine Flameless combuster according to claim 1, it is characterised in that：
The air inlet tube assembly includes being set in inlet manifold on the outside of the fuel injector, the lower end inner wall of the inlet manifold with
One collet is set between the fuel injector outer wall, one is opened up between the collet and inlet manifold's inwall for aoxidizing
The oxidant nozzle that agent passes through.
3. Stirling engine Flameless combuster according to claim 2, it is characterised in that：
The fuel injector includes the oil inlet pipe being sequentially connected, oil nozzle junctor and fuel nozzle；
On the outer wall of the oil nozzle junctor set an outwardly first boss, the upper surface of the first boss with it is described every
The bottom end contact of hot jacket, the lower surface of the first boss is connected with the cyclone.
4. Stirling engine Flameless combuster according to claim 2, it is characterised in that：
The quantity of the oxidant nozzle is 4~6, a diameter of 0.8~1.2mm of each oxidant nozzle, and 4~6
The individual oxidant nozzle forms a distribution circle, the distribution circle by center of circle radial distribution of the central axis of the inlet manifold
The D of diameter d and mixed tube diameter1Ratio d/D1=0.75~0.9.
5. Stirling engine Flameless combuster according to claim 2, it is characterised in that：
The mixing tube is combined by diversion section, mixing section, diffuser constitute from top to down successively, and the mixing tube is by some
Individual connection sheet is attached with the inwall of the housing, and several connection sheets are radially distributed in the outer wall of the mixing tube
On.
6. Stirling engine Flameless combuster according to claim 5, it is characterised in that：
One inwardly projecting second boss is set on the inwall of the mixing section, and the second boss is used to support the eddy flow
Device；
And/or；
The length L of the mixing section and diameter D of the mixing section2Ratio L/D2=0.8~1.2；
And/or；
The diffuser is expanded outwardly away from one end of the mixing section, and expansion angle is at 5~10 degree；
And/or；
The top of the oxidant nozzle is entrance, and bottom is outlet；The oxidant nozzle is exported to the mixing section
The distance between entrance is more than 0.7D1。
7. Stirling engine Flameless combuster according to claim 1, it is characterised in that：
The cyclone is axial swirler, swirling number Sn>0.6.
8. Stirling engine Flameless combuster according to claim 1, it is characterised in that：
The heat exchanger tube is inverted U-shaped structure, and the heat exchanger tube of the inverted U-shaped structure is fin side near the inner walls side,
Relative side is tube side；Fin is arranged on the heat exchanger tube of the fin side, fin welds together with heat exchanger tube.
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| CN201621102902.7U CN206191637U (en) | 2016-09-30 | 2016-09-30 | Glowing room for stirling |
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| CN201621102902.7U CN206191637U (en) | 2016-09-30 | 2016-09-30 | Glowing room for stirling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883406A (en) * | 2016-09-30 | 2018-04-06 | 上海齐耀动力技术有限公司 | Stirling engine Flameless combuster and its implementation |
| CN108167086A (en) * | 2017-11-21 | 2018-06-15 | 上海齐耀动力技术有限公司 | A kind of high-pressure oxygen-enriched combustion Stirling electricity generation system and its control method |
| CN110700961A (en) * | 2019-10-11 | 2020-01-17 | 上海齐耀动力技术有限公司 | Closed Stirling engine underwater power process and system based on aluminum powder combustion |
-
2016
- 2016-09-30 CN CN201621102902.7U patent/CN206191637U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883406A (en) * | 2016-09-30 | 2018-04-06 | 上海齐耀动力技术有限公司 | Stirling engine Flameless combuster and its implementation |
| CN107883406B (en) * | 2016-09-30 | 2024-05-10 | 上海齐耀动力技术有限公司 | Flameless combustion chamber for Stirling engine and method for implementing the same |
| CN108167086A (en) * | 2017-11-21 | 2018-06-15 | 上海齐耀动力技术有限公司 | A kind of high-pressure oxygen-enriched combustion Stirling electricity generation system and its control method |
| CN108167086B (en) * | 2017-11-21 | 2022-06-07 | 上海齐耀动力技术有限公司 | High-pressure oxygen-enriched combustion Stirling power generation system and control method thereof |
| CN110700961A (en) * | 2019-10-11 | 2020-01-17 | 上海齐耀动力技术有限公司 | Closed Stirling engine underwater power process and system based on aluminum powder combustion |
| CN110700961B (en) * | 2019-10-11 | 2023-08-29 | 上海齐耀动力技术有限公司 | Closed Stirling engine underwater power process and system based on aluminum powder combustion |
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