CN105805748A - Fuel gas nozzle device and control method thereof - Google Patents
Fuel gas nozzle device and control method thereof Download PDFInfo
- Publication number
- CN105805748A CN105805748A CN201610215478.5A CN201610215478A CN105805748A CN 105805748 A CN105805748 A CN 105805748A CN 201610215478 A CN201610215478 A CN 201610215478A CN 105805748 A CN105805748 A CN 105805748A
- Authority
- CN
- China
- Prior art keywords
- combustion
- gas
- gas nozzle
- supporting
- jet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2208/00—Control devices associated with burners
Abstract
The invention discloses a fuel gas nozzle device. The fuel gas nozzle device comprises a fuel gas nozzle. Jet holes used for jetting combustion-supporting gas are outwards formed in the inner side surface, adjacent to an air jet opening, of the fuel gas nozzle in a penetrating mode. The fuel gas nozzle device further comprises combustion-supporting gas guide pipes and control valves. One ends of the combustion-supporting gas guide pipes are fixedly connected with the jet holes in a sealed mode, and the other ends of the combustion-supporting gas guide pipes are used for being fixedly connected with combustion-supporting gas output interfaces of a combustion-supporting gas source in a sealed mode. The control valves are connected and installed on the combustion-supporting gas guide pipes in a sealed mode. The invention further discloses a control method of the fuel gas nozzle device. The method comprises the followings steps that the switching frequency of the control valves or/and the output gas pressure of the combustion-supporting gas are adjusted, the switching frequency of the control valves is matched with the characteristic frequency of a fuel gas flow large-eddy quasi-order structure, adjacent to the air jet opening, on the fuel gas nozzle, and the mass flow ratio of the combustion-supporting gas passing the jet holes to the fuel gas jet flow is 1%-20%. According to the fuel gas nozzle device and the control method thereof, the high combustion efficiency can be maintained, and the size of flame can be conveniently adjusted and controlled.
Description
Technical field
The invention belongs to gas combustion apparatus field, be specifically related to a kind of gas nozzle device and control method thereof.
Background technology
Along with the fast development of China's economy, the demand of the energy is increased year by year, wherein, the consumption of natural gas with annual 10% speed increment, current China has become as Imported gas state the biggest in the world.China is also stepping up the paces of energy industry structural adjustment, improves the utilization ratio of the energy, steps up natural gas proportion in primary energy consumption structure.Therefore the Main way that efficient gas combustion apparatus is the development of resource equipment field is developed.
Natural gas pollutes the advantages such as few with it, and the proportion in energy-consuming increases day by day.But, the burn incompletely of combustion gas, the harmful exhausts such as Hydrocarbon, carbon monoxide, nitrogen oxides can be resulted in, the utilization rate of the energy reduces, but also can cause serious environmental pollution.Therefore, how to improve the efficiency of fuel gas buring, reduce the discharge of the harmful gas such as carbon monoxide, nitrogen oxides simultaneously, be the problem that mainly to solve of development of new, burner with high efficiency.
In recent years, progress along with science and technology, burner has been carried out systematic research by related personnel, develop combustion gas and the efficiently combustion technology such as air pre-mixing, half premix and reflowed combustion, but the control effect that these combustion technologies are in the stability of gas flame, flame size, efficiency of combustion and pollutant emission is desirable not enough.
Based on this, applicant considers that fuel gas injection flame can effectively be controlled by design one, keeps higher efficiency of combustion, reduces the discharge of harmful gas；Easily the size of flame can be adjusted the gas nozzle device and the control method thereof that control under the premise that maintenance flame combustion is stable.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is: how to provide one can fuel gas injection flame effectively be controlled, and keeps higher efficiency of combustion, reduces the discharge of harmful gas；Easily the size of flame can be adjusted the gas nozzle device controlled under the premise that maintenance flame combustion is stable.
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
A kind of gas nozzle device, including the gas nozzle with air inlet and puff prot, on described gas nozzle, the medial surface at contiguous puff prot place is outwards provided through the jet orifice for spraying combustion-supporting gas；Also including the combustion-supporting airway and the control valve that arrange with described jet orifice one_to_one corresponding, one end of described combustion-supporting airway and described jet orifice are sealedly and fixedly connected, and the other end of described combustion-supporting airway is sealedly and fixedly connected for the delivery outlet with combustion-supporting gas source；Described control valve is tightly connected and is arranged on described combustion-supporting airway.
The operation principle of the gas nozzle device of the present invention is:
Combustion gas contiguous puff prot place in nozzle can form the big whirlpool coherent structure of character paracycle, jet-flow External airflow field feature relevant to this close structure.
The gas nozzle device of the present invention arranges the above-mentioned jet orifice for spraying combustion-supporting gas, and with jet orifice one_to_one corresponding arrange combustion-supporting airway and control valve after, " combustion-supporting gas jet " can be injected by controlling the switching frequency of this control valve in above-mentioned combustion gas " jet ", and utilize this " combustion-supporting gas jet " to destroy the boundary region of combustion gas " jet ", by the unstability of boundary region and then the intensity and the distribution that change big whirlpool coherent structure in jet-flow External airflow field, and then change the effect entrainmented and blend of jet-flow and burner hearth air, so that the air in burner hearth mixes further and is quickly generated flame combustion.
Because of puff prot place " combustion-supporting gas " contiguous in gas nozzle to the disturbance of " combustion gas " and blending, make fuel gas flow unstability, so that contacting between combustion gas and the air of puff prot ejection is more abundant, make the combustion gas through puff prot ejection can obtain more abundant at stove chamber inner combustion, while improving efficiency of combustion, it is also possible to reduce the discharge of harmful gas.
Additionally, the gas nozzle device of the present invention also by the switching frequency of adjusting control valve or/and the size of flame is controlled by combustion-supporting gas output pressure, concrete control method is as follows:
1, the switching frequency of adjusting control valve, the switching frequency controlling valve is made to approximate the characteristic frequency of the big whirlpool coherent structure of contiguous puff prot place jet-flow on gas nozzle, now help jet-flow that the reinforcing degree of " coherent structure " of combustion gas " jet " is maximum, blending between combustion gas and combustion-supporting gas can be more abundant, therefore the burning of flame can be made more abundant.
2, when the switching frequency controlling valve is constant, regulate combustion-supporting gas output pressure, namely (mass flow is in the unit interval to regulate the mass flow of jet orifice, the fluid fluid mass by closed conduct or open channel effective cross-section) so that the mass flowrate ratio of jet-flow and combustion-supporting gas jet is that 1% ~ 20%(mass flowrate compares QV/QO,QVFor helping the flow of jet-flow, QOFlow for jet-flow)；When the mass flow of jet orifice is more big, then destroying also more big to the coherent structure of combustion gas " jet ", the penetration power of combustion-supporting gas jet is also more big so that the flowing through the jet-flow center of gas nozzle puff prot ejection is destroyed, therefore flame can be made shorter；Otherwise, when the mass flow of jet orifice is more little, then the coherent structure destructive power of combustion gas " jet " is more little, penetration power is also less, make the flow regime destructiveness of jet-flow through the ejection of gas nozzle puff prot less, therefore burned flame bigger (length) can be made.
Further, described jet orifice is be uniformly arranged in the circumference of described medial surface multiple.
So, add combustion-supporting gas jet orifice, the mixing degree helping jet-flow with combustion gas can be increased, and enhancing helps the jet-flow destruction to the coherent structure of combustion gas " jet ".Strengthen the control effect to combustion flame.
As preferably, the blast tube within described gas nozzle is gradually reduced by described air inlet to described puff prot direction.
The setting of said structure, make the blast tube within gas nozzle closer to puff prot, passway is more little, so that the combustion gas flowing through gas nozzle can spray after the convergence of puff prot place, better boundary region can be obtained, thus forming the jet-flow with coherent structure better, promote the control effect to combustion flame of the gas nozzle device to the present invention.
As improvement, above-mentioned gas nozzle device also includes the Jet control part of a generally bar shaped tubular structure；One end of described Jet control part is fixedly connected on the end face of described gas nozzle by flange, and this end of described Jet control part is through with the blast tube sealing described gas nozzle within, the other end of described Jet control part forms the puff prot of described gas nozzle.
The setting of said nozzle control piece so that the puff prot of gas nozzle is formed on this Jet control part, is so not only more convenient for manufacturing the Jet control part with jet orifice structure, reduces the production and processing difficulty that gas nozzle device is overall；And Jet control part adopts flange to be fixedly connected on the end face of gas nozzle, so assemble up also more convenient firm.
As improvement, above-mentioned gas nozzle device also includes installing end plate, and described installation end plate is circulus, and this installation end sleeve-board connects the lateral surface being fixed on described puff prot；Described control valve is fixedly mounted on described installation end plate.
Above-mentioned installation end sleeve-board connects on the lateral surface at the puff prot place being fixed on gas nozzle, and the assembling so not only installing end plate self is more convenient；Simultaneously also because installing the circulus that end plate has so that also allow for that in the circumference installing end plate, single or multiple control valves are carried out assembling fixing.
As preferably, described control valve is high-frequency electromagnetic valve.
So, high-frequency electromagnetic valve is not only convenient for arranging and controlling, and the switching frequency range of high-frequency electromagnetic valve is wide, therefore can control the mixing degree of combustion-supporting gas and combustion gas according to different operating modes, promotes and controls effect.
As improvement, above-mentioned gas nozzle device also includes combustion-supporting gas air storage chamber, described combustion-supporting gas air storage chamber includes a housing, the inside of described housing has gas storage inner chamber, described housing is provided with respectively with the combustion-supporting gas intake interface of described gas storage inner space and combustion-supporting gas output interface, described combustion-supporting gas intake interface connects for sealing with the delivery outlet in described combustion-supporting gas source, and described combustion-supporting gas output interface seals with described combustion-supporting airway and connects.
The setting of above-mentioned combustion-supporting gas air storage chamber, the setting to combustion-supporting gas output interface of being more convenient for, particularly convenient for multiple, combustion-supporting gas output interface is configured, promotes the reasonable structure of the gas nozzle device of the present invention.
As preferably, described housing is the circulus being socketed in described gas nozzle lateral surface, and the end face of the described combustion-supporting gas intake interface air inlet that is positioned on described housing contiguous described gas nozzle, the end face of the air inlet that described combustion-supporting gas output interface is positioned on described housing away from described gas nozzle.
So, because this life of combustion-supporting gas in housing is non-combustible, therefore the housing being socketed in the circulus of described gas nozzle lateral surface can not only play the protective effect to gas nozzle；The housing of circulus multiple combustion-supporting gas output interface of being also more convenient for is arranged uniformly along the circumferencial direction of circulus end face, optimize multiple combustion-supporting gas output interface structure is set while, also can better utilize the space between combustion-supporting gas air storage chamber and Jet control part to arrange high-frequency electromagnetic valve so that overall structure is compact and reasonable more.
As preferably, the length of the length of described housing and described gas nozzle matches.
So, housing entirety can be made to wrap the lateral surface of gas nozzle, therefore housing (combustion-supporting gas air storage chamber) is better to the protected effect of gas nozzle.
Compared with prior art, the gas nozzle device of the present invention has the beneficial effect that
1, high-frequency electromagnetic valve switching frequency range is wide, it is possible to the blending procedure (mixing degree) according to the different combustion-supporting gas of operating conditions and combustion gas, promotes and controls effect.
2, through the mass flow of the combustion-supporting gas of jet orifice injection only by the air pressure of combustion-supporting gas is adjusted, simple and convenient；
3, high-frequency electromagnetic valve frequency response time short (less than 5ms), so, can be controlled the combustion characteristics (length of flame) of gas flame rapidly；
4, the gas nozzle device of the present invention control process easily, simple in construction, less costly, under relatively low cost and energy input, the combustion stability of flame, the length of flame, efficiency of combustion (efficiency of combustion is more high, and noxious gas emission is more few) can be control effectively.
Accompanying drawing explanation
Fig. 1 is the sectional view of the gas nozzle device of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is B-B sectional view in Fig. 1；
Fig. 4 be the present invention gas nozzle device in the sectional view of gas nozzle；
Fig. 5 is the right view of Fig. 4；
Fig. 6 is the sectional view of the Jet control part of the gas nozzle device of the present invention；
Fig. 7 is the left view of Fig. 6；
Fig. 8 is C-C sectional view in Fig. 6；
Fig. 9 is the sectional view of the nozzle end plate of the gas nozzle device of the present invention；
Figure 10 is the sectional view of the combustion-supporting gas air storage chamber of the gas nozzle device of the present invention；
Figure 11 is the right view of Figure 10.
Figure is labeled as:
The combustion-supporting gas intake interface of 1-, 2-gas nozzle, 3-blast tube, the combustion-supporting gas air storage chamber of 4-, 5-high-frequency electromagnetic valve controls joint, 6-high-frequency electromagnetic valve, 7-helps jet-flow interface, 8-jet orifice, 9-central authorities blend room, 10-Jet control part, 11-nozzle end plate, the combustion-supporting airway of 12-, the combustion-supporting gas output interface of 13-, 14, 15-fixes screw, 16-outer face, 17-lateral surface, 18, 19-screwed hole, 20-counter sink, 21-medial surface, 22-inner face, 23-joint installing hole, 24-end plate mounting groove, 25-end plate installed surface, 26-intake interface installing hole, 27-gives vent to anger interface installing hole, 28-installs through hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.Wherein, the exemplary term such as such as upper and lower, left and right are adopted for description, it is therefore intended that help reader understanding, and be not intended to limit.
As shown in Figure 1 to 11, a kind of gas nozzle device, including the gas nozzle 2 with air inlet and puff prot, on described gas nozzle 2, the medial surface at contiguous puff prot place is outwards provided through the jet orifice 8 for spraying combustion-supporting gas；Also include the combustion-supporting airway 12 and the control valve that arrange with described jet orifice 8 one_to_one corresponding, one end of described combustion-supporting airway 12 and described jet orifice 8 are sealedly and fixedly connected, and the other end of described combustion-supporting airway 12 is sealedly and fixedly connected for the delivery outlet with combustion-supporting gas source；Described control valve is tightly connected and is arranged on described combustion-supporting airway 12.
During enforcement, it is preferable that described combustion-supporting gas source is air compressor.Described control valve is pulse switch valve or high-frequency electromagnetic valve.
Wherein, described jet orifice 8 is be uniformly arranged in the circumference of described medial surface multiple.
Wherein, being gradually reduced by described air inlet to described puff prot direction of the blast tube 3 within described gas nozzle 2.
During enforcement, after the overall cylindrical structure of gas nozzle 2 profile, above-mentioned blast tube 3 is the closer to the more little structure of puff prot, and the tube wall that can make puff prot place is thicker, thus being more convenient for adopting bolt to be connected with other component herein.
Wherein, above-mentioned gas nozzle device also includes the Jet control part 10 of a generally bar shaped tubular structure；One end of described Jet control part 10 is fixedly connected on the end face of described gas nozzle 2 by flange, and described this end of Jet control part 10 seals through with the blast tube 3 within described gas nozzle 2, the other end of described Jet control part 10 forms the puff prot of described gas nozzle 2.
During enforcement, it is preferable that the terminal edge of the blast tube 3 of described gas nozzle 2 is formed with a circle flange along this blast tube 3 length direction evagination, and on described Jet control part 10, one end adjacent with this end face is socketed on this flange.So, the degree of being connected firmly between Jet control part 10 and gas nozzle 2 can not only be improved, also further increase the binding face between Jet control part 10 and nozzle, therefore add the difficulty that combustion gas is overflowed with nozzle binding face from Jet control part 10, there is the effect of better preventing gas seepage.
Wherein, above-mentioned gas nozzle device also includes installing end plate, and described installation end plate is circulus, and this installation end sleeve-board connects the lateral surface being fixed on described puff prot；Described control valve is fixedly mounted on described installation end plate.
Wherein, described control valve is high-frequency electromagnetic valve 6.
Wherein, above-mentioned gas nozzle device also includes combustion-supporting gas air storage chamber 4, described combustion-supporting gas air storage chamber 4 includes a housing, the inside of described housing has gas storage inner chamber, described housing is provided with respectively with the combustion-supporting gas intake interface 1 of described gas storage inner space and combustion-supporting gas output interface 13, described combustion-supporting gas intake interface 1 connects for sealing with the delivery outlet in described combustion-supporting gas source, and described combustion-supporting gas output interface 13 seals with described combustion-supporting airway and connects.
Wherein, described housing is the circulus being socketed in described gas nozzle 2 lateral surface, and the end face of described combustion-supporting gas intake interface 1 air inlet that is positioned on described housing contiguous described gas nozzle 2, described combustion-supporting gas output interface 13 is positioned on described housing away from the end face of the air inlet of described gas nozzle 2.
Wherein, the length of described housing matches with the length of described gas nozzle 2.
Above-mentioned gas nozzle device includes gas nozzle 2, combustion-supporting gas air storage chamber 4, high-frequency electromagnetic valve 6, Jet control part 10, nozzle end plate 11, combustion-supporting airway 12.Combustion gas enters central authorities from input equipment through gas nozzle 2 and blends room 9, finally sprays into burner hearth.Combustion-supporting gas from combustion-supporting gas air storage chamber 4 by combustion-supporting airway 12 through high-frequency electromagnetic valve 6, help jet-flow interface 7 and combustion-supporting gas maser flow tube road 8 to spray into central authorities to blend room 9, together with after quickly mixing with combustion gas, spray into burner hearth.Combustion-supporting gas discharge coupling 13, high-frequency electromagnetic valve 6, helping jet-flow interface 7 and jet orifice 8, quantity is 6, and distribution mode is circumference uniform distribution, as shown in Figure 2 and Figure 3.
Gas nozzle 2 is connected with Jet control part 10, and its concrete structure, such as shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, is drilled with the screwed hole 18 of 6 even circumferential distributions above the right side of gas nozzle 2, and processing has outer face 16 and lateral surface 17；And the left side of Jet control part 10 has the counter sink 20 of 6 even circumferential distributions, processing has medial surface 21 and inner face 22.During assembling, medial surface 21 and inner face 22 being coordinated with lateral surface 17 and outer face 16 respectively, the centrage of counter sink 20 overlaps with the centrage of screwed hole 18 simultaneously, installs fixing with fixing screw 18.
The right side of Jet control part 10 has joint installing hole 23 and jet orifice 8, and quantity is 6, and distribution mode is even circumferential distribution, as shown in Fig. 2, Fig. 8.Joint installing hole 23 is used for connecting helping jet-flow interface 7.In Jet control part 10, combustion gas enters central authorities through left side and blends in room 9, combustion-supporting gas through jet orifice 8 spray into central authorities blend in room 9 with combustion gas mixing.
Nozzle end plate 11 is linked together by end plate mounting groove 24 and Jet control part 10, as shown in Fig. 6, Fig. 9.Nozzle end plate 11 processing above has end plate installed surface 25, is used for coordinating with end plate mounting groove 24.High-frequency electromagnetic valve 6 is installed on above nozzle end plate 11, and quantity is 6, and even circumferential distribution.Wherein, the unlimited number of jet orifice 8 is in represented by Fig. 1 ~ Figure 11 being 6, and its number can be 2,3,4,8,12 etc., is accordingly to be regarded as and falls within patent claims scope.
Wherein, driving frequency can change between 1Hz ~ 200Hz less than 5ms the frequency response time of high-frequency electromagnetic valve.
Wherein, the axis of blast tube 3 is misaligned with the axis of jet orifice 8, and its angle can change between 30 ° ~ 90 °.
Combustion-supporting gas air storage chamber 4 is arranged on gas nozzle 2 by 3 fixing screws 15, is drilled with the screwed hole 19 of 3 even circumferential distributions in the right side of gas nozzle 2, as shown in Figure 4, Figure 5；The right side of combustion-supporting gas air storage chamber 4 is drilled with the installation through hole 28 of 3 even circumferential distributions equally, during installation, by screwed hole 19 and installation through hole 28 center alignment, complete to install with fixing screw 19, on the right side of combustion-supporting gas air storage chamber 4, also processing has the interface installing hole 27 of giving vent to anger of 6 circumference uniform distributions simultaneously, it is used for combustion-supporting gas output interface 13 is installed, as shown in Figure 10, Figure 11.
The work process of a kind of gas nozzle device of the present invention is: combustion gas enters the central authorities within Jet control part 10 through the blast tube 3 within gas nozzle 2 and blends room 9；Combustion-supporting gas enters in combustion-supporting gas air storage chamber 4 by combustion-supporting gas intake interface 1, then by helping gas outlet interface 13 to enter in high-frequency electromagnetic valve 6 by combustion-supporting airway 12, high frequency break-make through high-frequency electromagnetic valve controls, form pulse and help jet-flow, eventually pass jet orifice 8 and spray in central authorities' blending room 9, spray into formation combustion flame in burner hearth with exporting through the right-hand member of Jet control part 10 after combustion gas mixing.Wherein, what have 6 even circumferential distributions above combustion-supporting gas air storage chamber 4 helps gas outlet interface 13, and high-frequency electromagnetic valve 6 is also 6 simultaneously, it is arranged on above nozzle end plate 11, even circumferential is distributed, and the jet orifice 8 that Jet control part 10 is processed above is 6 too, and even circumferential is distributed.Enter the jet orifice 8 of correspondence through corresponding high-frequency electromagnetic valve 6 from the combustion-supporting gas helping gas outlet interface 13 to spray, finally spray into central authorities and blend in room 9.
By controlling the pressure of combustion-supporting gas air storage chamber 4, it is possible to the mass flow of combustion-supporting feeble QI jet is controlled；The switching frequency of high-frequency electromagnetic valve 6 is controlled, it is possible to control the pulse frequency of combustion-supporting feeble QI jet；The work number of combustion-supporting gas maser discharge orifice and distribution mode can be controlled by the quantity and distribution mode selecting the high-frequency electromagnetic valve 6 of work.
The gas nozzle device of the present invention controls the characteristic such as form of the size of flame, length, burning by the number that enables adjusted through the incident frequencies of combustion-supporting feeble QI jet of jet orifice injection, mass flow and combustion-supporting gas maser discharge orifice, the efficiency of combustion making combustion gas is higher, promotes combustion gas utilization rate.
Below it is only the preferred embodiment of the present invention; need to point out be; for those skilled in the art under the premise without departing from the technical program, it is also possible to make some deformation and improvement, the technical scheme of above-mentioned deformation and improvement should be contemplated as falling within this application claims the scope of protection equally.
Claims (10)
1. a gas nozzle device, including the gas nozzle with air inlet and puff prot, it is characterised in that: on described gas nozzle, the medial surface at contiguous puff prot place is outwards provided through the jet orifice for spraying combustion-supporting gas；Also including the combustion-supporting airway and the control valve that arrange with described jet orifice one_to_one corresponding, one end of described combustion-supporting airway and described jet orifice are sealedly and fixedly connected, and the other end of described combustion-supporting airway is sealedly and fixedly connected for the delivery outlet with combustion-supporting gas source；Described control valve is tightly connected and is arranged on described combustion-supporting airway.
2. gas nozzle device according to claim 1, it is characterised in that: described jet orifice is be uniformly arranged in the circumference of described medial surface multiple.
3. gas nozzle device according to claim 1, it is characterised in that: the blast tube within described gas nozzle is gradually reduced by described air inlet to described puff prot direction.
4. gas nozzle device according to claim 1, it is characterised in that: also include the Jet control part of a generally bar shaped tubular structure；One end of described Jet control part is fixedly connected on the end face of described gas nozzle by flange, and this end of described Jet control part is through with the blast tube sealing described gas nozzle within, the other end of described Jet control part forms the puff prot of described gas nozzle.
5. gas nozzle device according to claim 1, it is characterised in that: also including installing end plate, described installation end plate is circulus, and this installation end sleeve-board connects the lateral surface being fixed on described puff prot；Described control valve is fixedly mounted on described installation end plate.
6. gas nozzle device according to claim 1, it is characterised in that: described control valve is high-frequency electromagnetic valve.
7. gas nozzle device according to claim 1, it is characterized in that: also include combustion-supporting gas air storage chamber, described combustion-supporting gas air storage chamber includes a housing, the inside of described housing has gas storage inner chamber, described housing is provided with respectively with the combustion-supporting gas intake interface of described gas storage inner space and combustion-supporting gas output interface, described combustion-supporting gas intake interface connects for sealing with the delivery outlet in described combustion-supporting gas source, and described combustion-supporting gas output interface seals with described combustion-supporting airway and connects.
8. gas nozzle device according to claim 7, it is characterized in that: described housing is the circulus being socketed in described gas nozzle lateral surface, and the end face of the described combustion-supporting gas intake interface air inlet that is positioned on described housing contiguous described gas nozzle, the end face of the air inlet that described combustion-supporting gas output interface is positioned on described housing away from described gas nozzle.
9. gas nozzle device according to claim 8, it is characterised in that: the length of the length of described housing and described gas nozzle matches.
10. the control method of the gas nozzle device according to any one of the claims 1 to 9, it is characterized in that: this control method comprises the following steps: to the switching frequency of described control valve or/and the output pressure of combustion-supporting gas is adjusted, the switching frequency making described control valve matches with the characteristic frequency of big whirlpool coherent structure in vicinity puff prot place combustion gas stream on gas nozzle, is 1% to 20% through the combustion-supporting gas of jet orifice and the mass flow ratio of jet-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215478.5A CN105805748A (en) | 2016-04-08 | 2016-04-08 | Fuel gas nozzle device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215478.5A CN105805748A (en) | 2016-04-08 | 2016-04-08 | Fuel gas nozzle device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105805748A true CN105805748A (en) | 2016-07-27 |
Family
ID=56459789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215478.5A Pending CN105805748A (en) | 2016-04-08 | 2016-04-08 | Fuel gas nozzle device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989931A (en) * | 2017-05-22 | 2017-07-28 | 西南交通大学 | A kind of high-frequency pulse injection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3461860D1 (en) * | 1983-07-25 | 1987-02-05 | Chauffage Comp Int De | Burner for premixed gas and boiler equipped with such a burner |
| CN203515864U (en) * | 2013-10-12 | 2014-04-02 | 青岛新奥燃气有限公司 | Multipoint direct spraying type gas system |
| WO2014167737A1 (en) * | 2013-04-09 | 2014-10-16 | 日本オイルポンプ株式会社 | Burner |
| CN104613470A (en) * | 2014-12-05 | 2015-05-13 | 哈尔滨工业大学深圳研究生院 | Pulse type micro-jet gas nozzle control device |
-
2016
- 2016-04-08 CN CN201610215478.5A patent/CN105805748A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3461860D1 (en) * | 1983-07-25 | 1987-02-05 | Chauffage Comp Int De | Burner for premixed gas and boiler equipped with such a burner |
| WO2014167737A1 (en) * | 2013-04-09 | 2014-10-16 | 日本オイルポンプ株式会社 | Burner |
| CN203515864U (en) * | 2013-10-12 | 2014-04-02 | 青岛新奥燃气有限公司 | Multipoint direct spraying type gas system |
| CN104613470A (en) * | 2014-12-05 | 2015-05-13 | 哈尔滨工业大学深圳研究生院 | Pulse type micro-jet gas nozzle control device |
Non-Patent Citations (2)
| Title |
|---|
| 李健: "《基于脉冲微射流控制的射流特性实验装置的设计及实验研究》", 《重庆理工大学硕士学位论文》 * |
| 罗静等: "《脉冲微射流技术试验台气压系统的设计》", 《机床与液压》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989931A (en) * | 2017-05-22 | 2017-07-28 | 西南交通大学 | A kind of high-frequency pulse injection device |
| CN106989931B (en) * | 2017-05-22 | 2023-04-25 | 西南交通大学 | High-frequency pulse injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205447747U (en) | Ultralow NOx combustor of hot flue gas self -loopa type | |
| CN104266189B (en) | The control method of fuel gas with low heat value radiation pipe burner tip | |
| CN113983495B (en) | Rotary detonation combustion chamber suitable for natural gas hydrogen-doped combustion | |
| CN105805748A (en) | Fuel gas nozzle device and control method thereof | |
| CN103307600B (en) | Heat accumulative gas burner | |
| CN200943880Y (en) | Improved gas furnace head | |
| CN108954316B (en) | Nozzle structure suitable for oscillation combustion of pulse combustor and design method | |
| CN218237491U (en) | Waste gas burns industry torch | |
| CN104613470A (en) | Pulse type micro-jet gas nozzle control device | |
| CN201954547U (en) | Gas burner with high pressure head | |
| CN206419957U (en) | A kind of natural gas ejecting device suitable for gas heating equipment | |
| CN110056869A (en) | A kind of burner | |
| CN214307102U (en) | Special dense-dilute combustion low-emission natural gas combustor for asphalt stirring equipment | |
| CN104501136A (en) | Auxiliary combustion device | |
| CN204084368U (en) | Fuel gas with low heat value radiation pipe burner tip | |
| CN104595890B (en) | Wall-attaching seamless flat-flame low nitrogen oxide emission burner | |
| CN205424961U (en) | Flue gas denitration device based on blue carbon tail gas boiler | |
| CN102252323B (en) | Self-preheating oxygen-enriched combustor for combustion furnace with oxygen-enriched nozzle | |
| CN216431709U (en) | Circular flame ultralow NO for ethylene and styrene deviceXBurner with a burner head | |
| CN201237218Y (en) | Injector type gas burner | |
| CN211451008U (en) | Ignition gun, combustor, drying device and asphalt mixing plant | |
| CN220567234U (en) | Low-nitrogen burner with balanced gas distribution | |
| CN2438931Y (en) | Intensified burner for industrial heating furnace | |
| CN218025826U (en) | Heat accumulation chamber burn-through system | |
| CN109838784A (en) | A kind of novel burner adapting to multi-state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
|
| RJ01 | Rejection of invention patent application after publication |