CN202171247U - Hydrogen combustor - Google Patents
Hydrogen combustor Download PDFInfo
- Publication number
- CN202171247U CN202171247U CN2011202660262U CN201120266026U CN202171247U CN 202171247 U CN202171247 U CN 202171247U CN 2011202660262 U CN2011202660262 U CN 2011202660262U CN 201120266026 U CN201120266026 U CN 201120266026U CN 202171247 U CN202171247 U CN 202171247U
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- Prior art keywords
- hydrogen
- section
- center
- aisle
- flame stabilizing
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Abstract
The utility model relates to a hydrogen combustor which comprises a central passage, a middle passage and an outer ring passage and is characterized in that a flame stabilizing disc is arranged at the front part of the outer ring passage, the flame stabilizing disc comprises a port contracted section and a port expanded section, a plurality of ventilation holes are arranged at the small end part of the port expanded section, and a plurality of rotational flow guide cut grooves are arranged at the big end part of the port expanded section; the front ends of the central passage and the middle passage are arranged in the flame stabilizing disc and are communicated with the flame stabilizing disc; the front part of the middle passage is connected with a plurality of spray pipes, and the spray nozzles of the spray pipes are close to the outer wall of the port expanded section of the flame stabilizing disc; and an ignition device is arranged in the outer ring passage. In the hydrogen combustor, with the adoption of the structure of the flame stabilizing disc, a small part of hydrogen is completely mixed with air penetrating through the ventilation holes of the flame stabilizing disc and the rotational flow guide cut grooves in the flame stabilizing disc, a large part of the hydrogen is sprayed out through the spray pipes and spreads out behind the flame stabilizing disc so as to reasonably organize the flow field structure, reasonably control the mix of the air and the hydrogen, ensure the complete combustion of the hydrogen, control the flame length in a reasonable scope and ensure the safe and stable operation of a furnace.
Description
Technical field
The utility model relates to a kind of burner, especially relates to a kind of combustion of hydrogen device, is used for the burning of hydrogen.
Background technology
The burning-point of hydrogen is higher, but its catch fire can be very little, so be easy to catch fire and flame propagation speed; The density of hydrogen is very little simultaneously, adopts the burner of general structure to be difficult to guarantee that hydrogen and airborne oxygen fully mix, and hydrogen is under the carrying of air-flow; Still imperfect combustionly just flow to furnace outlet apace, the flame of combustion of hydrogen is very long, thereby causes the postmedian burning of hydrogen at burner hearth; Cause the exhanst gas outlet temperature too high, easily the scaling loss heated surface at the end of boiler.
At present, on commercial Application, also rarely has the combustion of hydrogen device, because hydrogen density is little; When hydrogen gets into the burner hearth burning; Hydrogen is not having under the condition of completing combustion under the carrying of jet, fast flow speed and direction furnace outlet; Therefore the flame of combustion of hydrogen is very long, possibly cause burner hearth back-end surfaces scaling loss under the serious situation.
The utility model content
The applicant has carried out research and has improved to above-mentioned problem, and a kind of combustion of hydrogen device is provided; Rationalization's flow field structure, the mixing of control air and hydrogen rationally guarantees the completing combustion of hydrogen ability; The control length of flame guarantees the stable operation of boiler safety within reasonable range.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of combustion of hydrogen device; Comprise central passage, the center-aisle outside the centering passage that is positioned at the axle center and place the outer outer ring channel of center-aisle, stable flame pan is arranged on the front portion of said outer ring channel, and said stable flame pan comprises close up section and flared section; Section and the flared section of closing up all is taper type; The said small end that closes up section is connected with the small end of said flared section, and the small end of said flared section is provided with a plurality of passages, and the big end of said flared section is provided with the eddy flow guiding grooving of a plurality of even settings; The front end of said central passage and said center-aisle is arranged in the closing in section of said stable flame pan and is communicated with said stable flame pan; The front portion of said center-aisle is connected with the jet pipe of a plurality of even settings, and the spout of said jet pipe is pressed close to the outer wall of said stable flame pan flared section; Igniter is arranged in the said outer ring channel, and the ignitron of said igniter connects the flared section of said stable flame pan.
Further:
Said outer ring channel front end is provided with the enlarging flame tube.
The front end of said center-aisle is provided with the section that closes up.
The anterior outer wall of said central passage is provided with the choke ring, and said choke ring is positioned near the port of export of said center-aisle.
The spout place of said jet pipe is provided with the angular cut towards said stable flame pan flared section outer wall.
The technique effect of the utility model is:
The disclosed a kind of combustion of hydrogen device of the utility model utilizes the stable flame pan structure, and fraction hydrogen fully mixes in stable flame pan inside with the air that sees through stable flame pan passage and eddy flow guiding grooving; Most of hydrogen spread behind stable flame pan and is scattered through the jet pipe ejection, and with the air intense mixing after get into burner hearth and burn; Burned flame is controlled in the reasonable orientation, rationalization's flow field structure, the rationally mixing of control air and hydrogen; Guarantee the completing combustion of hydrogen ability; The control length of flame guarantees the stable operation of boiler safety within reasonable range, tempering takes place in the time of preventing underload again simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A place complete section enlarged drawing of Fig. 1.
Fig. 3 is the structural representation of stable flame pan.
Fig. 4 is the right view of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation.
Shown in Fig. 1 ~ 4; The combustion of hydrogen device comprises central passage 1, the center-aisle 2 outside the centering passage 1 that is positioned at the axle center and places the outer outer ring channel 3 of center-aisle; Central passage 1 is nitrogen or air purge passage; The rear portion of central passage 1 is provided with nitrogen or air intake 11, when being used for the long period blowing out, in burner hearth, charges into nitrogen or air is trapped in the remaining fuel gas in the burner hearth with displacement through this passage; Center-aisle 2 is the hydrogen passage, and a side of center-aisle 2 is provided with hydrogen inlet 21; Outer ring channel 3 is an air duct, and the front end of outer ring channel 3 is provided with enlarging flame tube 301, and the structure of enlarging shape plays the effect that changes air flow direction, and to shorten the length of flame, outer ring channel 3 one sides are provided with air intake 31.Stable flame pan 4 is arranged on the front portion of outer ring channel 3; Stable flame pan 4 comprises close up section 401 and flared section 402; Section 401 and the flared section 402 of closing up all is taper type; The small end of the section 401 that closes up is connected with the small end of flared section 402, and the small end of flared section 402 is provided with a plurality of passages 403, and the big end of flared section 402 is provided with the eddy flow guiding grooving 404 of a plurality of even settings.The front end of central passage 1 and center-aisle 2 is arranged in the closing in section 401 of stable flame pan 4, and central passage 1 and center-aisle 2 front ends are all open-minded, are communicated with stable flame pan 4; The front end of center-aisle 2 is provided with the section 201 that closes up; Central passage 1 anterior outer wall is provided with choke ring 202; Choke ring 202 is positioned near the port of export of center-aisle 2; That is to say the inboard of choke ring 202, constitute an air annular space 203 between the outer wall of center-aisle 2 closing in sections 201 and the closing in section 401 of stable flame pan 4 in the closing in section 201 of center-aisle 2.The front portion of center-aisle 2 is connected with the jet pipe 5 of a plurality of even settings, and the spout 501 of jet pipe 5 is pressed close to the outer wall of stable flame pan flared section 402, and spout 501 places of jet pipe 5 are provided with the angular cut towards stable flame pan flared section 402 outer walls.Igniter 6 is arranged in the outer ring channel 3, and the ignitron 601 of igniter 6 connects the flared section 402 of stable flame pan 4, and the rear side of igniter 6 is provided with liquefied gas or gas inlet 61.
In use; Hydrogen gets into center-aisle 2 through hydrogen inlet 21; Be divided into two-way: fraction sprays into stable flame pan 4 through center-aisle 2 front ends; Because the closing in section 201 of center-aisle 2 and the effect of choke ring 202 only make the hydrogen of fraction spray into stable flame pan 4 from middle passage 2 front ends, this part hydrogen fully mixes with the air that gets into stable flame pan 4 via passage 403 on air annular space 203, the stable flame pan 4 and eddy flow guiding grooving 404; Air annular space 203, passage 403 and eddy flow guiding grooving 404 can effectively be organized mixing of air and hydrogen, make and are formed centrally the stable flame that rotates in the stable flame pan; Most of hydrogen is through jet pipe 5 ejections; Spout 501 places of jet pipe 5 have adopted the structure of cutting sth. askew, and play the effect of water conservancy diversion, make the outer wall of hydrogen injection to the flared section 402 of stable flame pan 4; Become the hydrogen stream of thigh to scatter in the outer wall shop of stable flame pan 4 flared section 402; Then with air with certain angle of intersection, after the full and uniform mixing, from spraying into the burner hearth burning between the enlarging flame tube 301 of the outer wall of stable flame pan 4 flared section 402 and outer ring channel 3 front ends.
The adjusting of the burner design of the combustion of hydrogen of the utility model is 1/4 of a rated output power at the burner minimum output power promptly than for 1:4.The flame propagation velocity of combustion of hydrogen is big (2.75m/s) very; Under the minimum output power operating mode; The muzzle velocity of hydrogen is greater than the flame propagation velocity of combustion of hydrogen, thereby rationalization's flow field structure guarantees that hydrogen can completing combustion; The length of flame is controlled at again within the reasonable range, effectively prevents the generation of underload tempering phenomenon.
Igniter 6 centers in the outer ring channel 3 are provided with ignitor; The electric spark that utilizes electrion to produce is lighted liquefied gas or natural gas, after liquefied gas or flaring are successfully set up, feeds hydrogen; Hydrogen is lighted and smooth combustion by liquefied gas or flaring with after air mixes.
Before hydrogen gets into the burner hearth burning; Mix through stable flame pan 4 and air are full and uniform; Spray into the burner hearth burning after reaching the mixed effect of design; The flame of combustion of hydrogen is about 1/2nd of furnace height, can guarantee that overheating problem does not take place boiler back end ductwork, guarantees the stable operation of boiler long-term safety.
Claims (5)
1. combustion of hydrogen device; Comprise central passage, the center-aisle outside the centering passage that is positioned at the axle center and place the outer outer ring channel of center-aisle; It is characterized in that: stable flame pan is arranged on the front portion of said outer ring channel; Said stable flame pan comprises close up section and flared section, and close up section and flared section all are taper type, and the small end of said closing in section is connected with the small end of said flared section; The small end of said flared section is provided with a plurality of passages, and the big end of said flared section is provided with the eddy flow guiding grooving of a plurality of even settings; The front end of said central passage and said center-aisle is arranged in the closing in section of said stable flame pan and is communicated with said stable flame pan; The front portion of said center-aisle is connected with the jet pipe of a plurality of even settings, and the spout of said jet pipe is pressed close to the outer wall of said stable flame pan flared section; Igniter is arranged in the said outer ring channel, and the ignitron of said igniter connects the flared section of said stable flame pan.
2. according to the described combustion of hydrogen device of claim 1, it is characterized in that: said outer ring channel front end is provided with the enlarging flame tube.
3. according to the described combustion of hydrogen device of claim 1, it is characterized in that: the front end of said center-aisle is provided with the section that closes up.
4. according to claim 1 or 3 described combustion of hydrogen devices, it is characterized in that: the anterior outer wall of said central passage is provided with the choke ring, and said choke ring is positioned near the port of export of said center-aisle.
5. according to the described combustion of hydrogen device of claim 1, it is characterized in that: the spout place of said jet pipe is provided with the angular cut towards said stable flame pan flared section outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202660262U CN202171247U (en) | 2011-07-26 | 2011-07-26 | Hydrogen combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202660262U CN202171247U (en) | 2011-07-26 | 2011-07-26 | Hydrogen combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171247U true CN202171247U (en) | 2012-03-21 |
Family
ID=45829442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202660262U Withdrawn - After Issue CN202171247U (en) | 2011-07-26 | 2011-07-26 | Hydrogen combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297426A (en) * | 2011-07-26 | 2011-12-28 | 无锡龙泉燃烧器制造有限公司 | Hydrogen gas combustor |
-
2011
- 2011-07-26 CN CN2011202660262U patent/CN202171247U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297426A (en) * | 2011-07-26 | 2011-12-28 | 无锡龙泉燃烧器制造有限公司 | Hydrogen gas combustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120321 Effective date of abandoning: 20130313 |
|
| RGAV | Abandon patent right to avoid regrant |