CN110017488A - Steam combustion-supporting type torch burner - Google Patents
Steam combustion-supporting type torch burner Download PDFInfo
- Publication number
- CN110017488A CN110017488A CN201810019756.9A CN201810019756A CN110017488A CN 110017488 A CN110017488 A CN 110017488A CN 201810019756 A CN201810019756 A CN 201810019756A CN 110017488 A CN110017488 A CN 110017488A
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- Prior art keywords
- steam
- burner
- torch
- combustion
- supporting type
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Classifications
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- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
Abstract
The present invention relates to a kind of steam combustion-supporting type torch burners, mainly solve the problems, such as that the quantity of steam that flare system steam smoke-eliminating type torch is consumed in the presence of burning in the prior art is larger, smoke effect is unobvious, high noise, the easy over-emitting black exhaust of torch.The present invention is by using a kind of steam combustion-supporting type torch burner, technical solution including torch gas general pipeline, steam inlet, main steam range, steam pipe coil, silencer cover, igniter, altar lamp, fixed wing plate, burner, steam jet, steam branch pipe, flare tip preferably solves the above problem, can be used in torch burning.
Description
Technical field
The present invention relates to a kind of steam combustion-supporting type torch burners, are opening for efficient, low noise, environmentally friendly burning processing device
The fuel gas generated under the situations such as shut-down, fluctuation.
Background technique
Flare system is the important safety and environmental protection facility in refinery, and main function is in shutting down, damage and thing
Therefore burning processing will be carried out containing all kinds of torch gas such as hydro carbons, hydrogen sulfide under state.Discharge is being released flare just by petroleum chemical enterprise
It is to be related to device operating and environmental protection of enterprise key factor up to standard whether often.The composition of flare discharge gas have complexity,
Time variation, flow regime have the characteristics that instantaneity, emergentness and huge discharge, this is very high to torch burning performance requirement.Such as
Fruit torch burning low efficiency, hydro carbons torch gas and sour gas can't burn completely, and just will form flammable and have gas cloud, give refinery
And safety and environmental risk are brought in periphery.In order to improve torch burning efficiency, torch over-emitting black exhaust accident is reduced, torch generally uses
Steam added combustion or air-breathing mode.
Structure is complicated for steam combustion-supporting type torch, generallys use tri- road steam added combustion structure of Shi at present, i.e., it is jetting steam caused, in
Heart steam and smoke elimination steam.Jetting steam caused effect is that high velocity vapor can carry a large amount of air, promotes torch gas and air more
Good mixing, improves torch gas burn-off rate；Central steam effect is to promote flame height, reduces burner temperature, improves burner
Service life；Smoke elimination vapor action is that the main component carbon black under high temperature action, in steam and black smoke reacts, and is generated easy
The carbon monoxide and hydrogen of combustion.
But from the point of view of live operating condition, steam combustion-supporting type torch is larger in the presence of the quantity of steam of burning consumption at present, disappears
The problems such as cigarette effect is unobvious, steam jet noise is big, efficiency of combustion is low and black smoke easily generated.
" over-emitting black exhaust questions and prospect depth profiling of releasing flare " (scientific and technical innovation Leader, 2016.10, Sui Xianfu), proposes to put
Empty torch is it is sometimes found that there is over-emitting black exhaust phenomenon, and one of the main reasons is flare tip design defect, and the supply of torch oxygen is insufficient, causes
It burns insufficient.By improving flare tip design defect, increases oxygen delivery capacity, while under the conditions of black smoke not can avoid, improve
Flare tip smoke abatement ability.However without proposing specific high effective smokeless mix flare burner improved design project.
Summary of the invention
The technical problem to be solved by the present invention is to flare system steam smoke-eliminating type torches in the prior art to disappear in the presence of burning
The problem of quantity of steam of consumption is larger, smoke effect is unobvious, high noise, torch easy over-emitting black exhaust, provides a kind of new steam added combustion
Type mix flare burner, the quantity of steam that there is burning to consume is smaller, smoke effect is obvious, low noise, torch are not easy the excellent of over-emitting black exhaust
Point.
To solve the above problems, The technical solution adopted by the invention is as follows: a kind of steam combustion-supporting type torch burner, including
Torch gas general pipeline, steam inlet, main steam range, steam pipe coil, silencer cover, igniter, altar lamp, fixed wing plate, burner, steaming
Vapour nozzle, steam branch pipe, flare tip are provided with burner on the flare tip at the top of torch gas general pipeline, and altar lamp and igniter are logical
It crosses fixed wing plate to be mounted on burner, each burner is equipped with altar lamp and igniter for igniting；From device
The torch gas released flow to burner in torch overhead through torch general pipeline, is finally fired after burner tip is ignited
It burns；Combustion-supporting steam enters main steam range by steam inlet, then sprays at steam jet after steam pipe coil, due to
Venturi effect, high velocity vapor carry air and enter steam branch pipe, and the gaseous mixture of steam and air is finally in steam branch pipe
End sprays, and mixes with torch gas, promotes torch gas efficient burning.
In above-mentioned technical proposal, it is preferable that air required for torch gas burns is from Liang Chu: what high velocity vapor carried
The air that air and mix flare burner periphery volume are inhaled.
In above-mentioned technical proposal, it is preferable that after fuel gas passes through torch gas general pipeline, after altar lamp is lighted a fire, burning
Device is diffused formula burning；Combustion-supporting steam enters main steam range by steam inlet, then in steam after steam pipe coil
It is sprayed at nozzle, due to Venturi effect, the high velocity vapor of ejection carries large quantity of air and enters in steam branch pipe, fires in torch
Burner exit sprays, and the steam and torch gas for carrying large quantity of air are sufficiently mixed, and improves torch burning efficiency, prevents torch from emitting
Black smoke accident occurs.
In above-mentioned technical proposal, it is preferable that silencer cover selects aperture smoke eliminator, punching rate 1%-3%, and material is stainless
Steel, with a thickness of 5mm-10mm, inside is equipped with 50mm-100mm silencing cotton.
In above-mentioned technical proposal, it is preferable that burner number should be no less than 4, and each internal diameter of burner should be at least fire
The total bore of torch gasN is burner number.
In above-mentioned technical proposal, it is preferable that steam pipe coil diameter is greater than the total pipe diameter of torch gas, is provided with and fires on coil pipe
The identical steam branch pipe of burner number.
In above-mentioned technical proposal, it is preferable that igniter overhead height is concordant with altar lamp, and burner is higher than at the top of altar lamp
Top；Flare tip is conical structure, and bottom connects torch gas general pipeline, and top connects mix flare burner.
In above-mentioned technical proposal, it is preferable that general pipeline is connect by the way of flange with torch pipe network, steam inlet and steam
Pipeline is connected by the way of flange；Igniter and altar lamp are welded on burner by fixed wing plate.
In above-mentioned technical proposal, it is preferable that steam jet uses eight claw multiinjector structures, is provided with 3- in each branch
6 spouts.
In above-mentioned technical proposal, it is preferable that steam branch pipe is inserted into burner internal, and steam branch pipe outlet port is lower than combustion
Burner outlet, outer diameter are the 1/2 of burner outer diameter.
A kind of steam combustion-supporting type torch burner that the present invention is mentioned to has smokeless combustion energy compared to current torch
The advantages such as power is strong, steam consumption is low, and high combustion efficiency, combustion noise are low.The steam pipe line on steam pipe coil top is straight tube, can
Steam pressure loss is effectively reduced, promotes steam and carries ability of air.Main steam range simultaneously only has one, compared to traditional torch
Three road steam pipe lines of burner save cost, and convenient for control.Quantity of steam/torch gas ≈ 0.2 when smokeless combustion, and it is traditional
Mix flare burner smokeless combustion when quantity of steam/torch gas >=0.4.It is multiple burners in torch overhead, compared to biography
System mix flare burner increases the ability of torch gas volume suck, so that mix flare burner smokeless combustion ability is stronger.Compared to
Traditional type mix flare burner can effectively reduce high frequency noise caused by steam injection, achieve preferable technical effect.
Detailed description of the invention
Fig. 1 is this patent steam combustion-supporting type torch burner；
Fig. 2 is top view；
Fig. 3 is the mix flare burner removed after silencer cover；
Fig. 4 is steam jet sectional view；
Fig. 5 is mix flare burner working principle diagram.
In Fig. 1-5,1 torch gas general pipeline；2 smoke elimination steam inlets；3 main steam ranges；4 steam pipe coils；5 silencer covers；6 igniting
Device；7 altar lamps；8 fixed wing plates；9 burners；10 steam jets；11 steam branch pipes；12 flare tips.
The present invention will be further described below by way of examples, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
A kind of steam combustion-supporting type torch burner, as shown in Figs 1-4,
1 torch gas general pipeline, general pipeline is connect by the way of flange with torch pipe network；
2 smoke elimination steam inlets, smoke elimination steam inlet are connect by the way of flange with jet chimney；
3 main steam ranges；
4 steam pipe coils, coil diameter should be slightly bigger than the total pipe diameter of torch gas, be provided on coil pipe identical as burner number
Steam branch pipe；
5 silencer covers, porosity 1%-, material are stainless steel, and with a thickness of 5mm, inside is equipped with 50mm silencing cotton；
6 igniters, igniter overhead height are concordant with altar lamp；
7 altar lamps, altar lamp top should be slightly above burner top；
8 fixed wing plates, igniter and altar lamp are welded on burner by fixed wing plate；
9 burners, burner number are 5, and each internal diameter of burner should be at least the total bore of torch gasn
For burner number；
10 steam jets are provided with 3 spouts in each branch, are detailed in Fig. 4 using eight claw multiinjector structures；
11 steam branch pipes, steam branch pipe number are identical as burner number.Steam branch pipe is inserted into burner internal, steam
Branch outlet position is slightly below burner outlet, and outer diameter is the 1/2 of burner outer diameter；
12 flare tips, flare tip are conical structure, and bottom connects torch gas general pipeline, and top connects mix flare burner.
As shown in figure 5, being provided with multiple burners 9 on the flare tip 12 at 1 top torch gas general pipeline.Altar lamp 7 and igniting
Device 6 passes through fixed wing plate 8 and is mounted on burner 9.Each burner 9 is equipped with a set of altar lamp 7 and point for igniting
Firearm 6.The torch gas released from device branches to multiple burners 9 through torch general pipeline 1 at the top of flare tip 12, is finally firing
It burns after being ignited on 9 top of burner.
Combustion-supporting steam enters main steam range 3 by steam inlet 2, then in steam jet 10 after steam pipe coil 4
After place sprays, due to Venturi effect, high velocity vapor carries air and enters steam branch pipe 11, the gaseous mixture of steam and air
It sprays in 11 end of steam branch pipe, is mixed with torch gas, promote torch gas efficient burning.
Air required for torch gas burns is from Liang Chu: the air that high velocity vapor carries, and torch gas volume inhales peripheral ring
Air in border.There is air to be mixed in the inside of torch gas cloud cluster and periphery, it is ensured that the burning of torch gas high effective smokeless.
[embodiment 2]
A kind of steam combustion-supporting type torch burner, as shown in Figs 1-4,
1 torch gas general pipeline, general pipeline is connect by the way of flange with torch pipe network；
2 smoke elimination steam inlets, smoke elimination steam inlet are connect by the way of flange with jet chimney；
3 main steam ranges；
4 steam pipe coils, coil diameter should be slightly bigger than the total pipe diameter of torch gas, be provided on coil pipe identical as burner number
Steam branch pipe；
5 silencer covers, porosity 3%, material are stainless steel, and with a thickness of 10mm, inside is equipped with 100mm silencing cotton；
6 igniters, igniter overhead height are concordant with altar lamp；
7 altar lamps, altar lamp top should be slightly above burner top；
8 fixed wing plates, igniter and altar lamp are welded on burner by fixed wing plate；
9 burners, burner number should be 8, and each internal diameter of burner should be at least the total bore of torch gas
N is burner number；
10 steam jets are provided with 6 spouts in each branch, are detailed in Fig. 4 using eight claw multiinjector structures；
11 steam branch pipes, steam branch pipe number are identical as burner number.Steam branch pipe is inserted into burner internal, steam
Branch outlet position is slightly below burner outlet, and outer diameter is the 1/2 of burner outer diameter；
12 flare tips, flare tip are conical structure, and bottom connects torch gas general pipeline, and top connects mix flare burner.
As shown in figure 5, being provided with multiple burners 9 on the flare tip 12 at 1 top torch gas general pipeline.Altar lamp 7 and igniting
Device 6 passes through fixed wing plate 8 and is mounted on burner 9.Each burner 9 is equipped with a set of altar lamp 7 and point for igniting
Firearm 6.The torch gas released from device branches to multiple burners 9 through torch general pipeline 1 at the top of flare tip 12, is finally firing
It burns after being ignited on 9 top of burner.
Combustion-supporting steam enters main steam range 3 by steam inlet 2, then in steam jet 10 after steam pipe coil 4
After place sprays, due to Venturi effect, high velocity vapor carries air and enters steam branch pipe 11, the gaseous mixture of steam and air
It sprays in 11 end of steam branch pipe, is mixed with torch gas, promote torch gas efficient burning.
Air required for torch gas burns is from Liang Chu: the air that high velocity vapor carries, and torch gas volume inhales peripheral ring
Air in border.There is air to be mixed in the inside of torch gas cloud cluster and periphery, it is ensured that the burning of torch gas high effective smokeless.
[embodiment 3]
A kind of steam combustion-supporting type torch burner, as shown in Figs 1-4,
1 torch gas general pipeline, general pipeline is connect by the way of flange with torch pipe network；
2 smoke elimination steam inlets, smoke elimination steam inlet are connect by the way of flange with jet chimney；
3 main steam ranges；
4 steam pipe coils, coil diameter should be slightly bigger than the total pipe diameter of torch gas, be provided on coil pipe identical as burner number
Steam branch pipe；
5 silencer covers, porosity 2%, material are stainless steel, and with a thickness of 7mm, inside is equipped with 70mm silencing cotton；
6 igniters, igniter overhead height are concordant with altar lamp；
7 altar lamps, altar lamp top should be slightly above burner top；
8 fixed wing plates, igniter and altar lamp are welded on burner by fixed wing plate；
9 burners, burner number are 6, and each internal diameter of burner should be at least the total bore of torch gasn
For burner number；
10 steam jets are provided with 5 spouts in each branch, are detailed in Fig. 4 using eight claw multiinjector structures；
11 steam branch pipes, steam branch pipe number are identical as burner number.Steam branch pipe is inserted into burner internal, steam
Branch outlet position is slightly below burner outlet, and outer diameter is the 1/2 of burner outer diameter；
12 flare tips, flare tip are conical structure, and bottom connects torch gas general pipeline, and top connects mix flare burner.
As shown in figure 5, being provided with multiple burners 9 on the flare tip 12 at 1 top torch gas general pipeline.Altar lamp 7 and igniting
Device 6 passes through fixed wing plate 8 and is mounted on burner 9.Each burner 9 is equipped with a set of altar lamp 7 and point for igniting
Firearm 6.The torch gas released from device branches to multiple burners 9 through torch general pipeline 1 at the top of flare tip 12, is finally firing
It burns after being ignited on 9 top of burner.
Combustion-supporting steam enters main steam range 3 by steam inlet 2, then in steam jet 10 after steam pipe coil 4
After place sprays, due to Venturi effect, high velocity vapor carries air and enters steam branch pipe 11, the gaseous mixture of steam and air
It sprays in 11 end of steam branch pipe, is mixed with torch gas, promote torch gas efficient burning.
Air required for torch gas burns is from Liang Chu: the air that high velocity vapor carries, and torch gas volume inhales peripheral ring
Air in border.There is air to be mixed in the inside of torch gas cloud cluster and periphery, it is ensured that the burning of torch gas high effective smokeless.
The present invention is mentioned to steam combustion-supporting type torch burner, and the steam pipe line on steam pipe coil top is straight tube, can be effective
Steam pressure loss is reduced, steam is promoted and carries ability of air.Main steam range simultaneously only has one, compared to traditional torch burning
Tri- road steam pipe line of Qi saves cost, and convenient for control.
The steam combustion-supporting type torch burner that the present invention is mentioned to is multiple burners in torch overhead, compared to
Traditional mix flare burner increases the ability of torch gas volume suck, so that mix flare burner smokeless combustion ability is stronger.Smokelessly
Quantity of steam/torch gas ≈ 0.2 when burning, and traditional mix flare burner smokeless combustion quantity of steam/torch gas >=0.4.
Steam combustion-supporting type torch burner of the invention can effectively reduce steam spray compared to traditional type mix flare burner
High frequency noise caused by penetrating.
Claims (10)
1. a kind of steam combustion-supporting type torch burner, including torch gas general pipeline, steam inlet, main steam range, steam pipe coil, noise reduction
Cover, altar lamp, fixes wing plate, burner, steam jet, steam branch pipe, flare tip, the fire at the top of torch gas general pipeline at igniter
It is provided with burner, altar lamp and igniter on torch head to be mounted on burner by fixed wing plate, each burner is equipped with
Altar lamp and igniter for igniting；The torch gas released from device flow to combustion in torch overhead through torch general pipeline
Burner is finally burnt after burner tip is ignited；Combustion-supporting steam enters main steam range by steam inlet, then
It is sprayed at steam jet after steam pipe coil, due to Venturi effect, high velocity vapor carries air and enters steam branch
The gaseous mixture of pipe, steam and air is finally sprayed in steam branch pipe end, is mixed with torch gas, and torch gas efficient burning is promoted.
2. steam combustion-supporting type torch burner according to claim 1, it is characterised in that air required for torch gas burns
From Liang Chu: the air that the air and mix flare burner periphery volume that high velocity vapor carries are inhaled.
3. steam combustion-supporting type torch burner according to claim 1, it is characterised in that fuel gas passes through torch gas general pipeline
Afterwards, after altar lamp is lighted a fire, formula burning is diffused in burner；Combustion-supporting steam enters main steam range by steam inlet,
Then it is sprayed at steam jet after steam pipe coil, due to Venturi effect, the high velocity vapor of ejection carries large quantity of air
It enters in steam branch pipe, is sprayed in mix flare burner exit, the steam and torch gas for carrying large quantity of air are sufficiently mixed, mention
High torch burning efficiency prevents torch over-emitting black exhaust accident from occurring.
4. steam combustion-supporting type torch burner according to claim 1, it is characterised in that silencer cover selects aperture smoke eliminator, wears
Porosity is 1%-3%, and material is stainless steel, and with a thickness of 5mm-10mm, inside is equipped with 50mm-100mm silencing cotton.
5. steam combustion-supporting type torch burner according to claim 1, it is characterised in that burner number should be no less than 4,
Each internal diameter of burner should be at least the total bore of torch gasN is burner number.
6. steam combustion-supporting type torch burner according to claim 1, it is characterised in that steam pipe coil diameter is greater than torch gas
Total pipe diameter is provided with steam branch pipe identical with burner number on coil pipe.
7. steam combustion-supporting type torch burner according to claim 1, it is characterised in that igniter overhead height and altar lamp
Concordantly, burner top is higher than at the top of altar lamp；Flare tip is conical structure, and bottom connects torch gas general pipeline, top connection
Mix flare burner.
8. steam combustion-supporting type torch burner according to claim 1, it is characterised in that general pipeline and torch pipe network use flange
Mode connect, steam inlet is connect by the way of flange with jet chimney；Igniter and altar lamp pass through fixed wing plate weldering
It connects on the burner.
9. steam combustion-supporting type torch burner according to claim 1, it is characterised in that steam jet is sprayed more using eight claw
Mouth structure is provided with 3-6 spout in each branch.
10. steam combustion-supporting type torch burner according to claim 1, it is characterised in that steam branch pipe is inserted into burner
Portion, steam branch pipe outlet port are lower than burner outlet, and outer diameter is the 1/2 of burner outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019756.9A CN110017488A (en) | 2018-01-09 | 2018-01-09 | Steam combustion-supporting type torch burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019756.9A CN110017488A (en) | 2018-01-09 | 2018-01-09 | Steam combustion-supporting type torch burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110017488A true CN110017488A (en) | 2019-07-16 |
Family
ID=67187756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810019756.9A Pending CN110017488A (en) | 2018-01-09 | 2018-01-09 | Steam combustion-supporting type torch burner |
Country Status (1)
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| CN (1) | CN110017488A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953581A (en) * | 2019-12-17 | 2020-04-03 | 武汉武船重型装备工程有限责任公司 | Torch system |
| CN112378244A (en) * | 2020-11-06 | 2021-02-19 | 绍兴红良铸业股份有限公司 | Quick drying room of eight-claw type torch burner |
| CN112404350A (en) * | 2020-11-06 | 2021-02-26 | 绍兴红良铸业股份有限公司 | Eight-claw type torch burner and manufacturing process thereof |
| CN112629835A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | System and method for measuring injection capacity of venturi device |
| CN113669744A (en) * | 2020-05-15 | 2021-11-19 | 中国石油化工股份有限公司 | Torch grading smoke elimination system and method |
| EP4013996A4 (en) * | 2019-08-14 | 2023-09-06 | Zeeco Inc. | Low consumption assisted flare apparatus and method |
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| CS230132B1 (en) * | 1982-12-22 | 1984-07-16 | Vladimir Kalvoda | Torch head with steam duplicator |
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| CN105299660A (en) * | 2015-11-03 | 2016-02-03 | 北京航天动力研究所 | Flare combustor for treating large-displacement high-calorific-value effluent gas through steam smoke abatement |
| CN106402905A (en) * | 2016-09-05 | 2017-02-15 | 郑立敏 | Staged-combustion torch head device |
| CN206488289U (en) * | 2017-02-13 | 2017-09-12 | 江苏中圣高科技产业有限公司 | Low noise steam combustion-supporting type torch head |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4013996A4 (en) * | 2019-08-14 | 2023-09-06 | Zeeco Inc. | Low consumption assisted flare apparatus and method |
| CN112629835A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | System and method for measuring injection capacity of venturi device |
| CN112629835B (en) * | 2019-10-08 | 2022-12-27 | 中国石油化工股份有限公司 | System and method for measuring injection capacity of venturi device |
| CN110953581A (en) * | 2019-12-17 | 2020-04-03 | 武汉武船重型装备工程有限责任公司 | Torch system |
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| CN113669744A (en) * | 2020-05-15 | 2021-11-19 | 中国石油化工股份有限公司 | Torch grading smoke elimination system and method |
| CN113669744B (en) * | 2020-05-15 | 2024-04-30 | 中国石油化工股份有限公司 | Torch grading smoke abatement system and method |
| CN112378244A (en) * | 2020-11-06 | 2021-02-19 | 绍兴红良铸业股份有限公司 | Quick drying room of eight-claw type torch burner |
| CN112404350A (en) * | 2020-11-06 | 2021-02-26 | 绍兴红良铸业股份有限公司 | Eight-claw type torch burner and manufacturing process thereof |
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Application publication date: 20190716 |