CN201521960U - Heat storage flat flame burner - Google Patents
Heat storage flat flame burner Download PDFInfo
- Publication number
- CN201521960U CN201521960U CN2009201287018U CN200920128701U CN201521960U CN 201521960 U CN201521960 U CN 201521960U CN 2009201287018 U CN2009201287018 U CN 2009201287018U CN 200920128701 U CN200920128701 U CN 200920128701U CN 201521960 U CN201521960 U CN 201521960U
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- Prior art keywords
- flame
- burner
- combustion
- spout
- accumulating type
- 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.)
- Expired - Lifetime
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- 238000005338 heat storage Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 53
- 239000002737 fuel gas Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims description 60
- 239000000567 combustion gas Substances 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 17
- 230000001603 reducing effect Effects 0.000 claims description 13
- 230000001413 cellular effect Effects 0.000 claims description 6
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910052571 earthenware Inorganic materials 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
Abstract
The utility model discloses a heat storage flat flame burner. The heat storage flat flame burner comprises a burner body, in which an air or smoke passage, a porous heat storage body, a burning cavity, a fuel gas pipeline and an ignition device are arranged, and is characterized in that a tangential air intake duct is arranged at the tail end of an air or gas passage, the air or fuel gas passage is connected with the burning cavity through the tangential air intake duct, and the tangential air intake duct is positioned in the tangential direction of the circumferential burning cavity. The heat storage flat flame burner provided by the utility model has the advantages that the energy utilization rate is high; the uniformity of the furnace temperature is excellent; and the discharge amount of NOX can be greatly reduced to a great degree; various pipelines in the burner can be prevented from being damaged by burning; the service life thereof is prolonged; the fuel gas can be sprayed in at a higher velocity so as to be burned, thereby effectively controlling the flame temperature, and facilitating the sufficient burning of the fuel gas; moreover, the spraying distance of the flame in a hearth is very short, and the flame can not be sprayed at the parts in the hearth, thereby preventing the defects that the temperature is high, the temperature rising is quick, and the performance indexes of parts are reduced which are brought by the direct spraying of the flame at the parts.
Description
Technical field
The utility model relates to a kind of high, medium and low temperature industrial fuel-fired furnace burner, the heat accumulating type flat flame burner of especially high, medium and low temperature industrial fuel-fired furnace.
Background technology
Regenerative combustion technology is the present best energy-saving combustion technology of energy-saving effect in the world, its principle is to adopt the paired burner that has heat storage to carry out the burning of control formula, when a burner combustion, another burner carries out air-breathing smoke evacuation, high-temperature flue gas during by heat storage and heat storage carry out thermal energy exchange, heat storage heat absorption, high-temperature flue-gas reduce; Through certain hour, after the heat storage accumulation of heat is saturated, commutate, during another burner combustion, cold air or fuel enter burner from the higher heat storage of endothermic temperature, heated by this heat storage; Simultaneously, the burner of former burning carries out air-breathing smoke evacuation, and high-temperature flue gas with the heating of its heat storage, carries out heat exchange again, by the continuous alternate combustion repeatedly of two burners, reaches energy-conservation effect.The name that applicant was applied on March 8th, 2006 is called " heat accumulating type impulse burner ", the patent No. is the disclosed technology contents of utility model patent of ZL200620110073.7, is exactly a kind of heat storage type combustion burner.Burner of the prior art, structure respectively have difference, and its common ground is that combustion air air inlet pipe and fuel air pipe mix the disposable burning in back in burner, cause the flame combustion temperature higher, for high heating value gas, flame temperature can reach more than 2000 ℃, because flame temperature and NO
XThe growing amount exponent function relation, conventional heat storage type combustion is facilitated NO greatly
XGeneration.NO
XAs burnt gas, can damage the ozone layer, cause acid rain and human body is produced strong impulse, facilitate PUD D etc., bigger environmental pollution is arranged, be to need strict control.
In addition, in the heat-accumulating burner of prior art,, burn out naked light parts such as pipeline on every side easily, cause shorten its service life because flame temperature can reach more than 2000 ℃; Especially metallic conduit can not use with regard to burning out in use for some time.And if adopt resistant to elevated temperatures earthenware duct, though improved resistance to elevated temperatures, embrittlement under repeatedly the effect of colding and heat succeed each other, takes place and damages in the heat storage type combustion process in earthenware duct easily, its service life is still not long.
At last, because the element size of the processing to be heated of placing in the industrial treatment stove burner hearth is different, the mode of banking up is different, cause the inevitable flame jet near burner of some parts, the flame that sprays from spout jet length in burner hearth is longer, directly surrounds on the parts; The parts of close flame jet are owing to directly surrounded, directly contact with naked light by flame, the naked light of high temperature (can arrive 2000 ℃ or more than) directly is sprayed onto on the parts and heating, cause the temperature of these part parts fast than miscellaneous part height, temperature rise, reduce the uniformity of temperature rise, simultaneously, the naked light of high temperature can influence the thermal effectiveness of parts, reduces its multinomial performance index.
The utility model content
The utility model provides a kind of and reduces NO in the combustion product by the conflagration mode at the above deficiency of the burner of prior art
XContent prolongs burner service life, prevents the heat accumulating type flat flame burner that temperature height, temperature rise that the flame that sprays from spout directly is sprayed onto on the parts to be brought are fast, reduce performance indications.
The technical solution of the utility model is: the heat accumulating type flat flame burner, comprise burner body, and in burner body, be provided with air or exhaust gases passes, cellular heat storage, combustion cavity, gas pipeline and igniter; It is characterized in that: at the end of air or exhaust gases passes, tangential air inlet duct is set, air or exhaust gases passes are connected with combustion cavity by tangential air inlet duct; Described tangential air inlet duct is positioned at the tangential direction of circle-shaped combustion cavity.
Further feature is: described tangential air inlet duct cross-sectional area dwindles gradually.
The spout of combustion cavity end is the bell mouth shape that cross-sectional area increases gradually.
At the end of gas pipeline, the flame protective cover is set, the spout of flame protective cover end is the diminishing reducing shape of cross-sectional area.
The end of gas pipeline is provided with the combustion gas spout of reducing shape, and the cross-sectional area of combustion gas spout is less than the cross-sectional area of gas pipeline inner chamber; The center line of the center line of combustion gas spout, the center line of spout and flame jet coincides.
On the flame protective cover, offer conduction hole.
Described igniter comprises igniting air inlet pipe, igniting Gas Pipe and igniting pin, and the air that the igniting air inlet pipe will be lighted a fire to be needed feeds, and the combustion gas that the igniting Gas Pipe will be lighted a fire to be needed feeds, and lights combustion gas under the spark effect that the igniting pin produces.
A high-speed fuel gas pipeline is set outside combustion cavity, the terminal industrial furnace burner hearth that directly feeds of high-speed fuel gas pipeline, the end of high-speed fuel gas pipeline is provided with the spout of reducing shape.
Heat accumulating type flat flame burner of the present utility model with respect to prior art, has following characteristics:
1, heat accumulating type flat flame burner of the present utility model has the advantage of heat accumulating burner capable good energy-conserving effect, the efficiency of energy utilization height; When guaranteeing temperature uniformity, can also reduce NO significantly
XDischarge capacity meets the trend and the requirement of environmental protection;
2, can protect the interior various pipelines of burner not by scaling loss, effectively prolong its service life;
3, fuel sprays into by necking spray orifice according to furnace temperature, burns under fair speed, effectively controls flame temperature, helps the abundant burning of fuel;
4, the flame that from the spout of burner, sprays jet length in burner hearth very short (being flat flame shape flame), substantially can not be ejected on the parts in the burner hearth, can prevent that temperature height, temperature rise that flame directly is sprayed onto on the parts to be brought are fast, reduce deficiency such as parts performance indications.
Description of drawings
Fig. 1 is first kind of example structure schematic diagram of the utility model heat accumulating type flat flame burner;
Fig. 2 be Fig. 1 along A-A to cutaway view;
Second kind of example structure schematic diagram of Fig. 3 the utility model;
Fig. 4 is the third example structure schematic diagram of the utility model;
Fig. 5 is the 4th kind of example structure schematic diagram of the utility model;
Fig. 6 is the 5th kind of example structure schematic diagram of the utility model.
The specific embodiment
As Fig. 1, in 2, first kind of example structure of heat accumulating type flat flame burner of the present utility model, comprise burner body 1, in burner body 1, be provided with air or exhaust gases passes 2, cellular heat storage 3, combustion cavity 4, gas pipeline 5 and igniter 6 etc., the passage that air or exhaust gases passes 2 enter as the combustion air in when burning, or to the exhaust gases passes of discharged gas fume, air being imported the flue gas of (in combustion cavity 4 and combustion gas mixing burning) generation of maybe will burning in the burner body 1 discharges outside the burner body 1, the cellular heat storage of being made by refractory material (as refractory ceramics class material) 3 is arranged in air or the exhaust gases passes 2, the said minuscule hole that inside has many supplied gas to pass through, when gas passes through, can carry out exchange heat with gas; As what pass through is high-temperature flue gas, and 3 heats that absorb high-temperature flue gas of cellular heat storage raise himself temperature, and thermal energy storage is got up; When the combustion air of lower temperature by the time, then cellular heat storage 3 heat releases reduce himself temperature again when adding hot-air, with thermal energy transfer to combustion air.Combustion cavity 4 is zones of combustion gas and combustion air mixed combustion, produces thermal-flame; Gas pipeline 5 is input to the combustion gas in the external world in the burner body 1; The combustion gas that igniter 6 can in time will spray in the combustion cavity 4 is as required lighted, and prevents a large amount of gathering of combustion gas and the initiation security incident.Above as prior art, be not further described at this.
Improvement of the present utility model is the end at air or exhaust gases passes 2, and promptly the tail end that is connected with combustion cavity 4 is provided with tangential air inlet duct 7, and air or exhaust gases passes 2 are connected with combustion cavity 4 by tangential air inlet duct 7; Described tangential air inlet duct 7 is positioned at the tangential direction of circle-shaped combustion cavity 4, and optimum structure is to be the diminishing reducing shape of cross-sectional area, and the cross-sectional area of tangential air inlet duct 7 dwindles gradually the closer to combustion cavity 4 and reduces more.When burning, the combustion air that enters from air or exhaust gases passes 2, enter in the combustion cavity 4 and combustion gas mixed combustion in combustion cavity 4 through tangential air inlet duct 7 from gas pipeline 5 inputs, because tangential air inlet duct 7 is positioned at the tangential direction of circle-shaped combustion cavity 4, combustion air produces helical form and rotatablely moves in combustion cavity 4, making flame is that helical form rotatablely moves equally, the flame jet length that enters the industrial furnace burner hearth from the spout 41 of combustion cavity 4 ends is very short, being flat flame shape flame, is the plane flame that rotates around spout 41 from visual observation.
The bell mouth shape that the cross-sectional area of the spout 41 of combustion cavity 4 ends increases gradually can reduce the flowing velocity of air or flame, makes the flame jet length shorter, more is easy to generate plane flame.
At the end of gas pipeline 5 the combustion gas spout 52 of reducing shape is set, the cross-sectional area of combustion gas spout 52 is less than the cross-sectional area of gas pipeline 5 inner chambers 51; The combustion gas that have certain flowing velocity, after control valve control, enters gas pipeline 5 from the outside, when passing through the combustion gas spout 52 of gas pipeline 5 ends, because of reducing effect pick up speed, enter fast in the combustion cavity 4, or enter in the burner hearth by combustion cavity 4 fast.
In order to prevent that flame from being blown out by cold air,, flame protective cover 8 is set at the end of gas pipeline 5; flame protective cover 8 protects the combustion gas spout interior; prevention directly blows to flame from the combustion air that air or exhaust gases passes 2 enter, and with the retention flame, prevent fray-out of flame, avoids security incident.In addition; the spout 81 of flame protective cover 8 ends is reducing shapes, and the cross-sectional area of spout 81 dwindles gradually, helps improving the jet velocity of flame or gas; it is entered in the combustion cavity 4 from the spout 81 of reducing shape at a high speed, help the abundant burning of combustion gas under low temperature or the flameless combustion state.
At the burning initial stage; flame and fire box temperature are all lower; in order to obtain stable flame at the burning initial stage; the present invention offers conduction hole 82 on flame protective cover 8; the opening of conduction hole 82 is less, will be incorporated in the flame protective cover 8 from a small amount of combustion air that air or exhaust gases passes 2 enter, and can prevent that again combustion air is with flame blow-off simultaneously; make it under burning initial stage low-temperature condition, in flame protective cover 8, have stable flame.
The center line of the center line of the combustion gas spout 52 of gas pipeline 5, the spout 81 of flame protective cover 8 and the center line of flame jet 41 coincide; can guarantee that combustion gas or flame enter in the burner hearth with the shortest distance; reduce its flow resistance, help the abundant burning of combustion gas under low temperature or the flameless combustion state.
For situation about effectively grasping and control is burnt, flame detector 9 is set, the end of flame detector 9 is arranged on around the combustion gas spout 52 that can detect the flame combustion situation, so that detect and whether in time to be lighted, to burn whether stable etc. from the combustion gas of combustion gas spout 52 ejections, guarantee normal, the safe combustion of burner.
In Fig. 3; second kind of example structure of heat accumulating type flat flame burner of the present utility model; its different piece is: protective cover 8 is to form by refractory material is integrated poured; usually be arranged on a side (left side among the figure) of air or exhaust gases passes 2 center lines; flame protective cover 8 is arranged on the left side; physical dimensions etc. are dwindled, and help increasing the bulk of combustion cavity 4, and it is more even to make that combustion gas mixes with air.Fig. 3 is basic identical to cutaway view and Fig. 2 along A-A, the Therefore, omited.
In Fig. 4; the third example structure of heat accumulating type flat flame burner of the present utility model; aforesaid igniter 6 comprises igniting air inlet pipe 11; igniting Gas Pipe 12 and igniting pin 13; the air that igniting air inlet pipe 11 will be lighted a fire to be needed feeds; to the light a fire combustion gas of needs of the igniting Gas Pipe 12 that is connected with outside gas pipeline feeds; under the spark effect that igniting pin 13 produces, light combustion gas; as the Chang Minghuo in the flame protective cover 8; wish that it keeps burning (especially low-temperature burning stage) always during burner combustion, as the burning things which may cause a fire disaster of lighting the combustion gas that sprays in the gas pipeline 5.Igniting pin 13 is arranged on the bluff body 14, and the air at bluff body 14 back sides flows very low, helps combustion gas and air and mixes formation stable ignition flame in back at bluff body 14 back sides.Igniter 6 of the present utility model can guarantee combustion gas reliable ignition as requested under the control device effect, prevent security incidents such as blast.Fig. 4 is basic identical to cutaway view and Fig. 2 along A-A, the Therefore, omited.
In Fig. 5; the 4th kind of example structure of heat accumulating type flat flame burner of the present utility model; aforesaid igniter 6 comprises igniting air inlet pipe 11, igniting Gas Pipe 12 and igniting pin 13; the air that igniting air inlet pipe 11 will be lighted a fire to be needed feeds; the combustion gas that igniting Gas Pipe 12 will be lighted a fire to be needed feeds; under the spark effect that igniting pin 13 produces, light combustion gas, as the Chang Minghuo in the flame protective cover 8.Igniting pin 13 is arranged on the bluff body 14, and the air at bluff body 14 back sides flows very low, helps combustion gas and air and mixes formation stable ignition flame in back at bluff body 14 back sides.Fig. 5 is basic identical to cutaway view and Fig. 2 along A-A, the Therefore, omited.
In Fig. 6, the 5th kind of example structure of heat accumulating type flat flame burner of the present utility model, a high-speed fuel gas pipeline 15 is set outside combustion cavity 4 in addition, the terminal industrial furnace burner hearth (not illustrating among the figure) that directly feeds of the high-speed fuel gas pipeline 15 that is connected with the fuel gas transportation pipeline in the external world, the end of high-speed fuel gas pipeline 15 is provided with the spout 16 of reducing shape; The combustion gas of present embodiment enters pipeline two, and one is the gas pipeline 5 that feeds combustion cavity 4, and another root is the high-speed fuel gas pipeline 15 that feeds burner hearth; In the needs high-velocity combustion stage, under the control device control action, enter the combustion gas of high-speed fuel gas pipeline 15, when passing through the combustion gas spout 16 of high-speed fuel gas pipeline 15 ends, because of reducing effect pick up speed, enter in the burner hearth fast, produce the flameless combustion effect, have from stirring action, mix, improve the burner hearth temperature uniformity with inner of the boiler chamber gas.The high-speed fuel gas pipeline 15 of this kind structure is arranged on around the burner hearth more easily, and combustion gas can be sprayed in the burner hearth with more rational orientation and angle, and combustion gas and furnace gas mix, and more help the burning in flameless combustion stage.Fig. 6 is basic identical to cutaway view and Fig. 2 along A-A, the Therefore, omited.
Claims (9)
1. the heat accumulating type flat flame burner comprises burner body (1), is provided with air or exhaust gases passes (2), cellular heat storage (3), combustion cavity (4), gas pipeline (5) and igniter (6) in burner body (1); It is characterized in that: the end at air or exhaust gases passes (2), tangential air inlet duct (7) is set, air or exhaust gases passes (2) are connected with combustion cavity (4) by tangential air inlet duct (7); Described tangential air inlet duct (7) is positioned at the tangential direction of circle-shaped combustion cavity (4).
2. heat accumulating type flat flame burner according to claim 1 is characterized in that: described tangential air inlet duct (7) cross-sectional area dwindles gradually.
3. heat accumulating type flat flame burner according to claim 1 is characterized in that: the terminal spout (41) of combustion cavity (4) is the bell mouth shape that cross-sectional area increases gradually.
4. heat accumulating type flat flame burner according to claim 1 is characterized in that: the end in gas pipeline (5), flame protective cover (8) is set, and the terminal spout (81) of flame protective cover (8) is the diminishing reducing shape of cross-sectional area.
5. according to the arbitrary described heat accumulating type flat flame burner of claim 1 to 4, it is characterized in that: the end of gas pipeline (5) is provided with the combustion gas spout (52) of reducing shape, and the cross-sectional area of combustion gas spout (52) is less than the cross-sectional area of gas pipeline (5) inner chamber (51); The center line of the center line of the center line of combustion gas spout (52), spout (81) and flame jet (41) coincides.
6. heat accumulating type flat flame burner according to claim 4 is characterized in that: offer conduction hole (82) on flame protective cover (8)
7. according to claim 1,2,3,4 arbitrary described heat accumulating type flat flame burners, it is characterized in that: described igniter (6) comprises igniting air inlet pipe (11), igniting Gas Pipe (12) and igniting pin (13).
8. heat accumulating type flat flame burner according to claim 7, it is characterized in that: a high-speed fuel gas pipeline (15) is set outside combustion cavity (4), the end of high-speed fuel gas pipeline (15) feeds the industrial furnace burner hearth, and the end of high-speed fuel gas pipeline (15) is provided with the spout (16) of reducing shape.
9. heat accumulating type flat flame burner according to claim 7 is characterized in that: igniting pin (13) is arranged on the bluff body (14), forms stable ignition flame at bluff body (14) back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201287018U CN201521960U (en) | 2009-09-01 | 2009-09-01 | Heat storage flat flame burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201287018U CN201521960U (en) | 2009-09-01 | 2009-09-01 | Heat storage flat flame burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521960U true CN201521960U (en) | 2010-07-07 |
Family
ID=42508136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201287018U Expired - Lifetime CN201521960U (en) | 2009-09-01 | 2009-09-01 | Heat storage flat flame burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521960U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871727A (en) * | 2010-07-14 | 2010-10-27 | 中冶长天国际工程有限责任公司 | Heat-storage lead-melting furnace |
| CN103851615A (en) * | 2012-11-30 | 2014-06-11 | 岳阳远东节能设备有限公司 | Novel automatic low-heating value industrial waste gas burner |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN110887042A (en) * | 2019-12-17 | 2020-03-17 | 山东万方窑炉工程科技有限责任公司 | Double-rotational-flow single-heat-storage flat flame burner |
-
2009
- 2009-09-01 CN CN2009201287018U patent/CN201521960U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871727A (en) * | 2010-07-14 | 2010-10-27 | 中冶长天国际工程有限责任公司 | Heat-storage lead-melting furnace |
| CN101871727B (en) * | 2010-07-14 | 2013-01-23 | 中冶长天国际工程有限责任公司 | Heat-storage lead-melting furnace |
| CN103851615A (en) * | 2012-11-30 | 2014-06-11 | 岳阳远东节能设备有限公司 | Novel automatic low-heating value industrial waste gas burner |
| CN103851615B (en) * | 2012-11-30 | 2016-06-15 | 岳阳远东节能设备有限公司 | A kind of automatization low heat value industrial waste gas combustor |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN108131672B (en) * | 2018-02-13 | 2024-03-12 | 项玮 | Low-nitride flat flame heat accumulating type burner of industrial furnace |
| CN110887042A (en) * | 2019-12-17 | 2020-03-17 | 山东万方窑炉工程科技有限责任公司 | Double-rotational-flow single-heat-storage flat flame burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING WORKS TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: GU XIANGTAO Effective date: 20130117 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400013 YUZHONG, CHONGQING TO: 400039 JIULONGPO, CHONGQING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130117 Address after: High Kam No. 18 building, 400039 Chongqing Jiulongpo Yuzhou Road No. 20-2 Patentee after: Chongqing Aokeqi Technology Co., Ltd. Address before: 26, No. 400013, building 1, Shuang Steel Road, Yuzhong District, Chongqing, 1-11 Patentee before: Gu Xiangtao |
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| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
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| CX01 | Expiry of patent term |