CN103115358A - Mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx) - Google Patents

Mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx) Download PDF

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Publication number
CN103115358A
CN103115358A CN2012105445568A CN201210544556A CN103115358A CN 103115358 A CN103115358 A CN 103115358A CN 2012105445568 A CN2012105445568 A CN 2012105445568A CN 201210544556 A CN201210544556 A CN 201210544556A CN 103115358 A CN103115358 A CN 103115358A
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China
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heavy oil
aperture
spray gun
rectifier
nozzle
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CN2012105445568A
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CN103115358B (en
Inventor
陈鹏飞
张定海
李龙飞
陈灿
吕文豪
谢佳
杨伟东
费俊
杨国华
洪流
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Dongfang Boiler Group Co Ltd
11 Research Institute of 6th Academy of CASC
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Dongfang Boiler Group Co Ltd
11 Research Institute of 6th Academy of CASC
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Abstract

The invention relates to a mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx). The mass flow heavy oil pulverization spray gun suitable for burning of the low NOx comprises a gun body assembly and a nozzle assembly, wherein the nozzle assembly comprises a spray nozzle and a plurality of mixed elements arranged on the spray nozzle, the mixed elements comprise an air hole, an oil hole and a mixing hole, one end of the air hole is communicated with a steam flow passage through a rectifier, one end of the oil hole is communicated with a heavy oil flow passage through the rectifier, and the other ends of the air hole and the oil hole are both communicated with the mixing hole. According to the mass flow heavy oil pulverization spray gun suitable for burning of the low NOx, through reasonable matching of the aperture ratio of various nozzles and the draw ratio of the mixing hole, the flow state in the nozzle is controlled to enable the outlet of the mixing hole to form a mist like flow, and pulverization grain size of the nozzle is effectively guaranteed. By means of the mass flow heavy oil pulverization spray gun suitable for burning of the low NOx, when flow quantity is under 0.6-3.3t/h, Soauter mean diameter (SMD) can reach smaller than 80mum.

Description

A kind of large flow heavy oil atomizing spray gun that is applicable to low NOx combustion
Technical field
The present invention relates to station boiler and the related industries stove atomized oil gun of oil burner, particularly the gas assisted atomization oil gun of combusting heavy oil and relevant high sticking combustible fluid, can be applicable to fuel oil station boiler and industrial furnace, carries out low NOx combustion.
Background technology
Along with the expansion of domestic large enterprise overseas market, the oil oven demand of originally stagnating because of the rise of the oil price development increases gradually; Since entering 21 century, countries in the world are to energy-conserving and emission-cutting technology also pay attention to day by day, and the development space of therefore low NOx Heavy Oil Burning Techniques is huge.Since the First heavy oil burner came out, heavy oil burner was widely used in industrial furnace and the external fuel oil station boilers such as glass, pottery, refractory material, cement and metallurgy.Because the viscosity of heavy oil is high, be difficult to atomizing, the burnt shell that generates after its pyrolysis hinders the evaporation of oil droplet, and make heavy oil combustion have following technological difficulties: (1) is long the duration of ignition, heats up slow, and start-up time is long; (2) incomplete combustion, over-emitting black exhaust, efficiency of combustion is low, and is less economical; (3) the NOx discharge capacity is high, serious environment pollution.The above problem of existing burner ubiquity, the key that the problems referred to above solve is the heavy oil atomizing process.For making heavy oil completing combustion, should make its rapid evaporation, the following particle diameter of its atomized particle size 50 μ m is preferably in more than 85%, when the 20 following particle diameters of μ m account for 5% left and right, catches fire stable; For reducing the discharge capacity of NOx, should adopt advanced low nitrogen burning technology simultaneously.As the critical component of burner, the performance of atomized oil gun determines oil atomization quality emphatically, and then affects its combustion efficiency, adopts rational spout layout to form rational mist field distribution and will produce remarkable result to the inhibition of NOx.Thereby develop can high-efficient atomizing heavy oil, and form certain rationally heavy oil spraying gun of mist field and can overcome the above problems, be with a wide range of applications.
For guaranteeing the atomization quality of heavy oil, existing oil gun generally adopts gas assisted atomization form.For gas assisted atomization spray gun, mainly contain outer mixed, three kinds of forms of interior mixed middle mixed type.
Compare outer mixed, interior mixed, the advantage such as that middle mix type nozzle has is simple in structure, it is large to exert oneself, atomize, adjustable range is large, so be widely used in heavy oil atomizing.For middle mix type nozzle, the shock between gas-liquid and mixed process are the key factors that affects atomized particle size; Nozzle-integrated atomization angle directly affects flame profile and the flame full level in burner hearth; The mist field distribution of nozzle is for complete combustibility and organize low NOx combustion to play a major role.The structural factor that shock and the mixing of gas-liquid played a crucial role mainly contains the section ratio of gas, liquid and mix aperture, gas-liquid hole angle, mix aperture draw ratio etc.; The angle of mix aperture and shower nozzle axis is determining the atomization angle of shower nozzle integral body, and is relevant with flame profile; Nozzle unit adopts rational arrangement can form rational mist field, coordinates can improve the completeness that burns after corresponding air register, form rational temperature field, organizes low NOx combustion.Therefore, the whole atomization characteristics after the atomization characteristics of nozzle individual unit and each cellular organization is the key technology of gun design.In order to improve the completeness of heavy oil spraying gun burning, make the discharging of NOx be down to floor level, need each structural factor of choose reasonable nozzle unit and each nozzle unit is carried out rational deployment, finally improve performance and the reliability of nozzle.
Summary of the invention
In order to solve the incomplete technical problem of existing middle mix type nozzle heavy oil combustion, the invention provides a kind of large flow heavy oil atomizing spray gun that is applicable to low NOx combustion, the present invention can obtain good atomization quality in wider flow adjustment range, greatly reduce the growing amount of NOx in combustion process, and improved the burn-off rate of heavy oil.Combustion flame is stable, all can long-time steady operation under multiple oil quality, to exert oneself steadily, and sealing effectiveness is good, without phenomenons such as oil dripping leakage of oil, ablation cokings.
Technical solution of the present invention is:
Be applicable to the large flow heavy oil atomizing spray gun of low NOx combustion, comprise rifle body assembly and nozzle assembly,
described rifle body assembly comprises inner sleeve 3, the air-path interface 1 that is communicated with inner sleeve 3, outer tube 4, liquid road interface 2 and rectifier 5, described inner sleeve 3 is fixedly connected with by stopping up 14 with an end of outer tube 4, form steam flow channel 15 in described inner sleeve, described inner sleeve 3, outer tube 4 and stop up 14 between form heavy oil runner 13, described liquid road interface 2 is communicated with heavy oil runner 13 by outer tube 4, the other end that described inner sleeve 3 is connected with outer tube is connected with an end of rectifier 5, the other end and the nozzle assembly of described rectifier 5 are tightly connected, described steam flow channel 15 and heavy oil runner 13 are communicated with nozzle assembly by rectifier, its special character is:
Described nozzle assembly comprises shower nozzle 8, is arranged on a plurality of mixed cells on shower nozzle 8, described mixed cell comprises pore 10, oilhole 11 and mix aperture 12, one end of described pore 10 communicates with steam flow channel 15 by rectifier 5, one end of described oilhole 11 communicates with heavy oil runner 13 by rectifier 5, the other end of described pore 10 and oilhole 11 all communicates with mix aperture 12
The scope of the angle theta between described oilhole 11 and pore 10 between 55 ° ~ 70 °, the center superposition of described pore 10 and mix aperture 13, mix aperture d 3With pore d 1Aperture ratio d 3/ d 1Be 1.2 ~ 1.5, pore d 1With oilhole d 2Aperture ratio d 1/ d 2Be 0.6 ~ 1, the length L of mix aperture 3Footpath, aperture d with mix aperture 3Ratio L 3/ d 3Be 2.5 ~ 4, the spacing L=0.7 of the connectivity part of described oilhole 10 and mix aperture and the connectivity part of pore 11 and mix aperture 13 ~ 0.9d 3
Above-mentioned a plurality of mixed cell is evenly distributed on shower nozzle.
According to the pore size interval setting of mix aperture, the heavy oil flux accounting of wide-aperture mixed cell is 1.0 ~ 1.6, and the heavy oil flux accounting of the mixed cell of small-bore is 0.4 ~ 1.0.
Above-mentioned a plurality of mixed cell becomes two even circumferentials to be distributed on shower nozzle take the center of the cross section of shower nozzle as the center of circle, it is 0 ~ ± 30 ° that the angle of the mix aperture in adjacent described mixed cell differs,
Does not wait in the mix aperture aperture that is positioned at mixed cell on different circumference, and the heavy oil flux accounting of wide-aperture mixed cell is 1.0 ~ 1.6, and the heavy oil flux accounting of the mixed cell of small-bore is 0.4 ~ 1.0.
Above-mentioned a plurality of mixed cell is evenly distributed on shower nozzle with a plurality of one group, and between the adjacent mix aperture of mixed cell, angle β 1 is 30 ~ 60 ° on the same group, and between the mix aperture of adjacent sets and adjacent mixed cell, angle β 2 is 60 ~ 120 °.
The said nozzle assembly is fixedly connected with rectifier by box nut 9, is provided with sealing gasket between described nozzle assembly and rectifier.
The diameter d of the number n of mixed cell and institute's distribution circumference is closed: n=0.12 ~ 0.25d, the distribution cone angle of the mix aperture of described mixed cell are 70 ° ~ 120 °.
Above-mentioned sealing gasket comprise be arranged on the interior sealing gasket 6 between rectifier internal channel and nozzle assembly and be arranged on vacuum tank and nozzle assembly between external seal pad 7, the material of described external seal pad is hard material, described interior gasket material is flexible material.
The present invention's beneficial effect compared with prior art is:
1, the present invention is by the various aperture ratios of Proper Match nozzle and the draw ratio of mix aperture, and the fluidised form in Control Nozzle makes mix aperture go out interruption-forming class mist flow, effectively guarantees the atomizing particle size of nozzle; Adopting structure of the present invention is under 0.6~3.3t/h at flow, can realize that average Suo Taier diameter (SMD) is less than 80 μ m.
2, the present invention by the placement scheme of appropriate design mixed cell, controls the dense-dilute burner combustion technology that heavy oil flux is realized heavy oil, can make the NOx discharge capacity reduce by 17% by layout.
3, mixed cell of the present invention by the reasonably optimizing y-type structure, makes atomizing particle size generally lower than 80 μ m, has solved the problems such as the heavy oil atomizing spray gun ubiquitous duration of ignition of length, incomplete combustion, over-emitting black exhaust, spout coking.
4, the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of the present invention's design, effectively reduce the NOx discharge capacity, and after reasonable wind distribution, the growing amount of NOx is generally lower than 300mg/m n 3, remaining oxygen content :@O2=3%, minimum NOx discharge capacity even reaches 230mg/m n 3, remaining oxygen content: O2=3% compares with domestic common oil gun, and the NOx discharge capacity reduces more than 40%.
5, oil gun sealing structure of the present invention is respond well, without phenomenons such as oil dripping leakage of oils.
6, oil gun of the present invention is actual exerts oneself unanimously with design load, has solved the problems such as the ubiquitous design rating of large flow oil gun does not reach.
Description of drawings
Fig. 1 is the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of the present invention;
Fig. 2 is nozzle placement scheme of the present invention;
Fig. 3 is nozzle arrangements of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the large flow heavy oil atomizing spray gun structure schematic diagram that is applicable to low NOx combustion, comprises rifle body assembly and nozzle assembly,
rifle body assembly comprises inner sleeve 3, the air-path interface 1 that is communicated with inner sleeve 3, outer tube 4, liquid road interface 2 and rectifier 5, inner sleeve 3 is fixedly connected with by stopping up 14 with an end of outer tube 4, form steam flow channel 15 in inner sleeve, inner sleeve 3, outer tube 4 and stop up 14 between form heavy oil runner 13, liquid road interface 2 is communicated with heavy oil runner 13 by outer tube 4, the other end that inner sleeve 3 is connected with outer tube is connected with an end of rectifier 5, the other end and the nozzle assembly of rectifier 5 are tightly connected, described steam flow channel 15 and heavy oil runner 13 are communicated with nozzle assembly by rectifier,
As shown in Figure 3, nozzle assembly comprises shower nozzle 8, is arranged on a plurality of mixed cells on shower nozzle 8, mixed cell comprises pore 10, oilhole 11 and mix aperture 12, one end of pore 10 communicates with steam flow channel 15 by rectifier 5, one end of oilhole 11 communicates with heavy oil runner 13 by rectifier 5, and the other end of pore 10 and oilhole 11 all communicates with mix aperture 12, and the scope of the angle theta between oilhole 11 and pore 10 is between 55 ° ~ 70 °, the center superposition of pore 10 and mix aperture 13, mix aperture d 3With pore d 1Aperture ratio d 3/ d 1Be 1.2 ~ 1.5, pore d 1With oilhole d 2Aperture ratio d 1/ d 2Be 0.6 ~ 1, footpath, the aperture d of the length of mix aperture and mix aperture 3Ratio L 3/ d 3Be 2.5 ~ 4, the spacing L=0.7 of the connectivity part of the connectivity part of oilhole 10 and mix aperture and pore 11 and mix aperture 13 ~ 0.9d 3
Nozzle arrangements is the standard y-type structure, by changing the parameters such as spray orifice section ratio and draw ratio, fluidised form in rationalization's mix aperture reduces the atomized drop diameter, the number of nozzle is according to rifle body scale and uninterrupted design, guarantee that a wind can enter mist and bore the center, strengthen mixed effect, improve burn-off rate, reduce the NOx growing amount that localized hyperthermia causes.Control the jet velocity of mist of oil to reach suitable penetration depth and to strengthen steady fuel efficiency fruit, avoid simultaneously flame to concentrate on nozzle position, prevent shower nozzle ablation and coking, extend product service life and improve reliability.
As shown in Figure 2, take six mixed cells as example, multiple arrangement mode is arranged:
Evenly distribute: a plurality of mixed cells are evenly distributed on shower nozzle.
Circumferential deep or light distribution: a plurality of mixed cells are evenly distributed on shower nozzle, with the size interval distribution of mix aperture.
Radially deep or light distribution: a plurality of mixed cells become two even circumferentials to be distributed on shower nozzle take the center of the cross section of shower nozzle as the center of circle, it is 0 ~ ± 30 ° that mix aperture in adjacent described mixed cell becomes angle to differ, does not wait in the mix aperture aperture that is positioned at mixed cell on different circumference, the heavy oil flux accounting of wide-aperture mixed cell is 1.0 ~ 1.6, and the heavy oil flux accounting of the mixed cell of small-bore is 0.4 ~ 1.0.
Cut apart the flame scheme: a plurality of mixed cells are evenly distributed on shower nozzle with a plurality of one group, and between the adjacent mix aperture of mixed cell, angle β 1 is 30 ~ 60 ° on the same group, and between the mix aperture of adjacent sets and adjacent mixed cell, angle β 2 is 60 ~ 120 °.
Control zone and the position of deep or light flame in burner hearth by the mixed cell placement scheme of different flow.Nozzle arrangements is the standard y-type structure, by changing the parameters such as spray orifice section ratio and draw ratio, fluidised form in rationalization's mix aperture reduces the atomized drop diameter, the number of nozzle is according to rifle body scale and uninterrupted design, guarantee that a wind can enter mist and bore the center, strengthen mixed effect, improve burn-off rate, reduce the NOx growing amount that localized hyperthermia causes.Control the jet velocity of mist of oil to reach suitable penetration depth and to strengthen steady fuel efficiency fruit, avoid simultaneously flame to concentrate on nozzle position, prevent shower nozzle ablation and coking, extend product service life and improve reliability.
Adopt the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of the present invention successfully to light a fire on 9MW heavy oil boiler experimental bench and try to burn, the discharge capacity of minimum NOx reaches 230mg/m n 3,@O 2=3%, the product stable and reliable operation.
According to the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of the present invention, the rifle body adopts sleeve structure, many group supporting constructions are set between internal and external casing guarantee the drive pipes concentricity requirement, reduce the inhomogeneities that heavy oil flux distributes, internal and external casing is connected with rectifier by welding manner.Nozzle assembly is fixedly connected with rectifier by box nut, is provided with sealing gasket between nozzle assembly and rectifier.Sealing gasket comprise be arranged on the interior sealing gasket 6 between rectifier internal channel and nozzle assembly and be arranged on vacuum tank and nozzle assembly between external seal pad 7, the material of external seal pad is hard material, interior gasket material is flexible material.Inside and outside sealing gasket is between shower nozzle and rectifier, and by cap nut 9 compressions, the external seal cushion material is red copper, and interior gasket material is soft graphite, solves the sealing problem of oil gun by the decrement that designs two pads.The pass of the nozzle hole number on shower nozzle and spray orifice export center distribution circle diameter is n=0.12 ~ 0.25d, and spray orifice distribution cone angle is 70 ° ~ 110 °.The rifle body satisfies the needs of boiler low NOx combustion in the situation that the adjustment that can realize the spray field penetration depth, flow the atomization characteristics such as strong distribution and spatial distribution by only changing shower nozzle can effectively coordinate with air register.
According to the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of the present invention, oil circuit pressure 0.7~1.5MPa, flow 0.6~3.3t/h, inlet temperature is 120 ~ 200 ℃; Gas circuit pressure 0.6 ~ 1.0MPa, vapor (steam) temperature is 170 ~ 210 ℃, and specific steam consumption is 3% ~ 10%, and average Suo Taier diameter is less than 80 μ m.
The know-why that the present invention takes: when being applicable to the large flow heavy oil atomizing spray gun work of low NOx combustion, steam is fed to inner sleeve 3 by air-path interface 1, directly enters in the pore that is distributed on shower nozzle 8; The heavy oil runner that heavy oil is fed between inside and outside sleeve pipe by liquid road interface 2, enter in the oilhole that is distributed on shower nozzle 8 after rectifier 5 rectifications, steam and heavy oil form at the mix aperture impingement mix of nozzle the spray field that satisfies penetration depth and particle diameter distribution requirement after the shower nozzle ejection.
Fluidised form in the draw ratio of the inlet pressure of Proper Match nozzle, section ratio and mix aperture, Control Nozzle makes mix aperture go out interruption-forming class mist flow, effectively guarantees the atomizing particle size of nozzle; Design nozzle placement scheme in the situation that do not change air distribution structure, is realized dense-dilute burner combustion technology, suppresses the growing amount of NOx; The mist of oil flow velocity of the number of Control Nozzle and jet expansion when obtaining suitable mist of oil penetration depth, has guaranteed to enter the intake at mist cone center, has reduced the growing amount of NOx and has avoided flame to concentrate near the coking problem that causes shower nozzle; Select the sealing gasket of unlike material, control the decrement of pad, strengthened the sealing effectiveness of product.

Claims (8)

1. be applicable to the large flow heavy oil atomizing spray gun of low NOx combustion, comprise rifle body assembly and nozzle assembly,
described rifle body assembly comprises inner sleeve (3), the air-path interface (1) that is communicated with inner sleeve (3), outer tube (4), liquid road interface (2) and rectifier (5), described inner sleeve (3) is fixedly connected with by stopping up (14) with an end of outer tube (4), form steam flow channel (15 in described inner sleeve, described inner sleeve (3), form heavy oil runner (13) between outer tube (4) and obstruction (14), described liquid road interface (2) is communicated with heavy oil runner (13) by outer tube (4), described inner sleeve (3) is connected 4 with outer tube) the other end be connected with an end of rectifier (5), the other end and the nozzle assembly of described rectifier (5) are tightly connected, described steam flow channel (15) and heavy oil runner (13) are communicated with nozzle assembly by rectifier,
It is characterized in that:
Described nozzle assembly comprises shower nozzle (8), is arranged on a plurality of mixed cells on shower nozzle (8), described mixed cell comprises pore (10), oilhole (11) and mix aperture (12), one end of described pore (10) communicates with steam flow channel (15) by rectifier (5), one end of described oilhole (11) communicates with heavy oil runner (13) by rectifier (5), the other end of described pore (10) and oilhole (11) all communicates with mix aperture (12)
The scope of the angle theta between described oilhole (11) and pore (10) between 55 ° ~ 70 °, the center superposition of described pore (10) and mix aperture (13), mix aperture d 3With pore d 1Aperture ratio d 3/ d 1Be 1.2 ~ 1.5, pore d 1With oilhole d 2Aperture ratio d 1/ d 2Be 0.6 ~ 1, the length L of mix aperture 3Footpath, aperture d with mix aperture 3Ratio L 3/ d 3Be 2.5 ~ 4, the spacing L=0.7 of the connectivity part of described oilhole 10 and mix aperture and the connectivity part of pore (11) and mix aperture (13) ~ 0.9d 3
2. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion according to claim 1, it is characterized in that: described a plurality of mixed cells are evenly distributed on shower nozzle.
3. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion according to claim 2.It is characterized in that: according to the pore size interval setting of mix aperture, the heavy oil flux accounting of wide-aperture mixed cell is 1.0 ~ 1.6, and the heavy oil flux accounting of the mixed cell of small-bore is 0.4 ~ 1.0.
4. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion according to claim 1.It is characterized in that: described a plurality of mixed cells become two even circumferentials to be distributed on shower nozzle take the center of the cross section of shower nozzle as the center of circle, it is 0 ~ ± 30 ° that the angle of the mix aperture in adjacent described mixed cell differs,
Does not wait in the mix aperture aperture that is positioned at mixed cell on different circumference, and the heavy oil flux accounting of wide-aperture mixed cell is 1.0 ~ 1.6, and the heavy oil flux accounting of the mixed cell of small-bore is 0.4 ~ 1.0.
5. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion according to claim 1.It is characterized in that: described a plurality of mixed cells are evenly distributed on shower nozzle with a plurality of one group, and between the adjacent mix aperture of mixed cell, angle β 1 is 30 ~ 60 ° on the same group, and between the mix aperture of adjacent sets and adjacent mixed cell, angle β 2 is 60 ~ 120 °.
6. according to claim 1-5 the arbitrary described large flow heavy oil atomizing spray gun that is applicable to low NOx combustion, it is characterized in that: described nozzle assembly is fixedly connected with rectifier by box nut (9), is provided with sealing gasket between described nozzle assembly and rectifier.
7. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion of stating according to claim 6, it is characterized in that: the diameter d of the number n of mixed cell and institute's distribution circumference is closed and is: n=0.12 ~ 0.25d, the distribution cone angle of the mix aperture of described mixed cell are 70 ° ~ 120 °.
8. the large flow heavy oil atomizing spray gun that is applicable to low NOx combustion according to claim 7, it is characterized in that: described sealing gasket comprise the interior sealing gasket (6) that is arranged between rectifier internal channel and nozzle assembly and be arranged on vacuum tank and nozzle assembly between external seal pad (7), the material of described external seal pad is hard material, and described interior gasket material is flexible material.
CN201210544556.8A 2012-12-15 2012-12-15 Mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx) Active CN103115358B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106377978A (en) * 2016-11-07 2017-02-08 天津海泰环保科技发展股份有限公司 Comprehensive processing system for rubber waste gas

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04295506A (en) * 1991-03-25 1992-10-20 Noritz Corp Spray nozzle for combustion
EP0588629A1 (en) * 1992-09-18 1994-03-23 Westinghouse Electric Corporation Gas turbine fuel nozzle with replaceable cap
CN201382416Y (en) * 2009-04-07 2010-01-13 南京万和测控仪表有限公司 Double-layered directional air atomizing oil gun
CN201866765U (en) * 2010-11-29 2011-06-15 南京中船绿洲环保有限公司 Microporous heavy oil spraying gun
KR20120082650A (en) * 2011-01-14 2012-07-24 주식회사 수국 Low nitrogen oxide burner for oil
CN203215668U (en) * 2012-12-15 2013-09-25 中国航天科技集团公司第六研究院第十一研究所 Mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04295506A (en) * 1991-03-25 1992-10-20 Noritz Corp Spray nozzle for combustion
EP0588629A1 (en) * 1992-09-18 1994-03-23 Westinghouse Electric Corporation Gas turbine fuel nozzle with replaceable cap
CN201382416Y (en) * 2009-04-07 2010-01-13 南京万和测控仪表有限公司 Double-layered directional air atomizing oil gun
CN201866765U (en) * 2010-11-29 2011-06-15 南京中船绿洲环保有限公司 Microporous heavy oil spraying gun
KR20120082650A (en) * 2011-01-14 2012-07-24 주식회사 수국 Low nitrogen oxide burner for oil
CN203215668U (en) * 2012-12-15 2013-09-25 中国航天科技集团公司第六研究院第十一研究所 Mass flow heavy oil pulverization spray gun suitable for burning of low nitric oxides (NOx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106377978A (en) * 2016-11-07 2017-02-08 天津海泰环保科技发展股份有限公司 Comprehensive processing system for rubber waste gas
CN106377978B (en) * 2016-11-07 2022-07-12 天津海泰环保科技发展股份有限公司 Comprehensive treatment system for rubber waste gas

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