CN108412641A - Fuel gas mixer - Google Patents
Fuel gas mixer Download PDFInfo
- Publication number
- CN108412641A CN108412641A CN201810618668.0A CN201810618668A CN108412641A CN 108412641 A CN108412641 A CN 108412641A CN 201810618668 A CN201810618668 A CN 201810618668A CN 108412641 A CN108412641 A CN 108412641A
- Authority
- CN
- China
- Prior art keywords
- fuel gas
- inner cavity
- cavity
- gas inlet
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002737 fuel gas Substances 0.000 title claims abstract description 69
- 239000000567 combustion gas Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000008246 gaseous mixture Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of fuel gas mixers, including hollow mixer case, mixer case is equipped with air intlet, fuel gas inlet and mixed gas outlet, the inner cavity shell of the outer cavity shell and annular of annular is equipped in mixer case, outer cavity shell is between mixer case and inner cavity shell, outer cavity shell forms exocoel with mixer case interval, fuel gas inlet is connected with exocoel, outer cavity shell forms inner cavity with inner cavity shell interval, outer cavity shell is equipped with the inner cavity fuel gas inlet of connection exocoel and inner cavity, inner cavity shell surrounds mixed air cavity, inner cavity shell last week is connected to the mixed air cavity fuel gas inlet of inner cavity and mixed air cavity to being laid with.Combustion gas is successively by the blocking and shunting of internal chamber wall and outer chamber wall, pressure reduction of the combustion gas in inner cavity and exocoel so that combustion gas is evenly distributed in the lumen and gaseous-pressure is equal everywhere, then combustion gas can uniformly enter mixed air cavity, it is uniformly distributed in mixed air cavity, and then is uniformly mixed with air.
Description
Technical field
The present invention relates to gas engine technical fields, specifically, are related to a kind of fuel gas mixer.
Background technology
Currently, being equipped with two trunnions in the mixer that natural gas engine uses, two trunnions are combined into " cross " knot
Structure, mixer case are equipped with fuel gas inlet, and fuel gas inlet is connected with Gas Pipe, and the both ends of trunnion are connected with fuel gas inlet respectively
It is logical, but the both ends of trunnion are inconsistent at a distance from fuel gas inlet, cause trunnion big close to the gaseous-pressure of fuel gas inlet one end
In gaseous-pressure of the trunnion far from fuel gas inlet one end, then the gas quantity that the both ends of trunnion are ejected is different, leads to combustion gas and sky
Gas mixes uneven when mixing, it is insufficient that combustion gas enters combustion chamber after-combustion, after causing combustion gas waste and exhaust emission etc. bad
Fruit.
Invention content
The technical problem to be solved by the present invention is to：A kind of combustion gas is provided and mixes more uniform combustion gas mixing with air
Device.
In order to solve the above technical problems, the technical scheme is that：
Fuel gas mixer includes hollow mixer case, and the mixer case is equipped with air intlet, fuel gas inlet
And mixed gas outlet, the inner cavity shell of the mixer case interior outer cavity shell for being equipped with annular and annular, the outer cavity shell
Between the mixer case and the inner cavity shell, the outer cavity shell forms outer with the mixer case interval
Chamber, the fuel gas inlet are connected with the exocoel, and the outer cavity shell forms inner cavity with inner cavity shell interval, described outer
Cavity shell is equipped with the inner cavity fuel gas inlet for being connected to the exocoel and the inner cavity, and the inner cavity shell surrounds mixed air cavity, institute
Inner cavity shell last week is stated to being laid with the mixed air cavity fuel gas inlet for being connected to the inner cavity and the mixed air cavity.
Preferably, the inner cavity fuel gas inlet is staggeredly located with the mixed air cavity fuel gas inlet.
Preferably, the mixed air cavity fuel gas inlet includes circumferential the first mixed air cavity being distributed on the inner cavity shell
Fuel gas inlet and circumferential the second mixed air cavity fuel gas inlet being distributed on the inner cavity shell, the second mixed air cavity combustion gas
The diameter of import is more than the diameter of the first mixed air cavity fuel gas inlet, and the quantity of the second mixed air cavity fuel gas inlet is small
In the quantity of the first mixed air cavity fuel gas inlet.
Preferably, sealing ring is equipped between the mixer case and the inner cavity shell.
After using above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Due to the inner cavity shell of the outer cavity shell and annular that are equipped with annular in mixer case, outer cavity shell and mixer shell
Body interval forms exocoel, and outer cavity shell forms inner cavity with inner cavity shell interval, and inner cavity body forms mixed air cavity；Then come from combustion gas
The combustion gas of import is introduced into exocoel, then enters inner cavity by exocoel, finally enters mixed air cavity, and in exocoel and inner cavity, combustion gas is first
Afterwards by the blocking and shunting of internal chamber wall and outer chamber wall, pressure reduction of the combustion gas in inner cavity and exocoel so that combustion gas is in inner cavity
In be evenly distributed and gaseous-pressure is equal everywhere, then combustion gas can uniformly enter mixed air cavity, uniformly divide in mixed air cavity
Cloth, and then be uniformly mixed with air, avoiding combustion gas, to enter combustion chamber after-combustion insufficient and cause that combustion gas wastes and discharge is dirty
The generation of the adverse consequences such as dye.
Since inner cavity fuel gas inlet and mixed air cavity fuel gas inlet are staggeredly located so that combustion gas residence time in the lumen
It is long, it can be in the lumen distributed more uniformly by the abundant blocking and shunting of internal chamber wall, combustion gas.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the fuel gas mixer of the present invention；
Fig. 2 is the half section structure diagram of the fuel gas mixer of the present invention；
Fig. 3 is the complete section structural schematic diagram of the fuel gas mixer of the present invention；
In figure：1- mixer cases；The outer cavity shells of 2-；The inner cavities 3- shell；4- fuel gas inlets；The inner cavities 5- fuel gas inlet；61-
First mixed air cavity fuel gas inlet；62- the second mixed air cavity fuel gas inlets；7- exocoels；The inner cavities 8-；9- sealing rings；10- air into
Mouthful；11- mixed gas outlets；12- mixed air cavities.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, Figure 2 and Fig. 3 is jointly shown, a kind of fuel gas mixer, hollow mixer case 1, on mixer case 1
Equipped with fuel gas inlet 4, one end of mixer case 1 is equipped with air intlet 10, and the other end is equipped with mixed gas outlet 11, mixer shell
The inner cavity shell 3 of the outer cavity shell 2 and annular of annular is equipped in body 1, outer cavity shell 2 is located at mixer case 1 and inner cavity shell 3
Between, interval forms exocoel 7 between outer cavity shell 2 and mixer case 1, and fuel gas inlet 4 is connected with exocoel 7, inner cavity shell 3
Interval forms inner cavity 8 between outer cavity shell 2, and outer cavity shell 2 is equipped with the inner cavity fuel gas inlet 5 of connection exocoel 7 and inner cavity 8,
Inner cavity shell 3 is around mixed air cavity 12 is surrounded, and air intlet 10, mixed gas outlet 11 are connected with mixed air cavity 12, inner cavity
The the first mixed air cavity fuel gas inlet 61 and the second gaseous mixture of multiple connection inner cavities 8 and mixed air cavity 12 are circumferentially evenly equipped on body 3
Chamber fuel gas inlet 62.
Wherein, the first mixed air cavity fuel gas inlet 61, the second mixed air cavity fuel gas inlet 62 and 5 position of inner cavity fuel gas inlet
It is staggered, so that combustion gas residence time in inner cavity 8 is long, can be allowed including combustion gas by the abundant blocking and shunting of internal chamber wall
It is distributed in chamber 8 more uniformly.
The diameter of second mixed air cavity fuel gas inlet 62 is more than the diameter of the first mixed air cavity fuel gas inlet 61, the second mixing
The quantity of air cavity fuel gas inlet 62 is less than the quantity of the first mixed air cavity fuel gas inlet 61.
When combustion gas is mixed with air, air enters mixed air cavity 12 from air intlet 10, and combustion gas enters outer from fuel gas inlet 4
In chamber 7, in exocoel 7, by the blocking and shunting of outer chamber wall, gaseous-pressure reduces, and combustion gas is distributed more in exocoel 7
Even, combustion gas is entered by inner cavity fuel gas inlet 5 in inner cavity 8 again, by the blocking and shunting of internal chamber wall, the pressure in inner cavity 8
It reduces again so that combustion gas is thoroughly uniformly distributed in inner cavity 8, then combustion gas passes through the first mixed air cavity fuel gas inlet 61, second
After mixed air cavity fuel gas inlet 62 is spurted into mixed air cavity 12, it can be uniformly distributed in mixed air cavity 12, combustion gas and air
It can be uniformly mixed, the combustion gas uniformly mixed from the outflow of mixed gas outlet 11 so that combustion gas can fully burn, and improve burning
Efficiency reduces the waste of combustion gas and reduces the discharge of pollution.
When gas flow is larger, combustion gas can rapidly enter mixing by the second mixed air cavity fuel gas inlet 62 of major diameter
In air cavity 12, accelerate the mixing efficiency of combustion gas, to meet the job requirement of engine.
The above is the citing of best mode for carrying out the invention, wherein the part that do not address in detail is that this field is common
The common knowledge of technical staff.Protection scope of the present invention is based on the contents of the claims, any technology based on the present invention
The equivalent transformation of enlightenment and progress, also within protection scope of the present invention.
Claims (4)
1. fuel gas mixer, including：Hollow mixer case, the mixer case are equipped with air intlet, fuel gas inlet
And mixed gas outlet, which is characterized in that
The inner cavity shell of the outer cavity shell and annular of annular is equipped in the mixer case, the outer cavity shell is located at described mixed
Between clutch shell and the inner cavity shell, the outer cavity shell forms exocoel, the combustion gas with the mixer case interval
Import is connected with the exocoel, and the outer cavity shell forms inner cavity with inner cavity shell interval, is set on the outer cavity shell
There are the inner cavity fuel gas inlet for being connected to the exocoel and the inner cavity, the inner cavity shell to surround mixed air cavity, the inner cavity shell
Upper circumferential direction is laid with the mixed air cavity fuel gas inlet for being connected to the inner cavity and the mixed air cavity.
2. fuel gas mixer as described in claim 1, which is characterized in that the inner cavity fuel gas inlet is fired with the mixed air cavity
Gas entrance location is staggered.
3. fuel gas mixer as described in claim 1, which is characterized in that the mixed air cavity fuel gas inlet includes circumferential uniformly distributed
In on the inner cavity shell the first mixed air cavity fuel gas inlet and circumferential the second gaseous mixture being distributed on the inner cavity shell
Chamber fuel gas inlet, the diameter of the second mixed air cavity fuel gas inlet are more than the diameter of the first mixed air cavity fuel gas inlet,
The quantity of the second mixed air cavity fuel gas inlet is less than the quantity of the first mixed air cavity fuel gas inlet.
4. fuel gas mixer as described in any one of claims 1-3, which is characterized in that the mixer case and the inner cavity
Sealing ring is equipped between shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618668.0A CN108412641A (en) | 2018-06-15 | 2018-06-15 | Fuel gas mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618668.0A CN108412641A (en) | 2018-06-15 | 2018-06-15 | Fuel gas mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412641A true CN108412641A (en) | 2018-08-17 |
Family
ID=63141831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810618668.0A Pending CN108412641A (en) | 2018-06-15 | 2018-06-15 | Fuel gas mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237094A (en) * | 2020-03-11 | 2020-06-05 | 广西玉柴机器股份有限公司 | Large-scale gas engine mixer |
| US20230313760A1 (en) * | 2020-07-28 | 2023-10-05 | Cummins Inc. | Gaseous fuel-air mixer with higher mixture uniformity |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2178011A1 (en) * | 1996-06-03 | 1997-12-04 | G. Campbell Perry | Fuel injection system |
| DE10032190A1 (en) * | 2000-07-01 | 2002-03-21 | Bosch Gmbh Robert | Gas burner with combustion body of porous material has at least one more or less central cavity in combustion body |
| US20020148451A1 (en) * | 2001-04-13 | 2002-10-17 | Takayuki Yamamoto | Gas injection device of gas engine |
| CN1468651A (en) * | 2002-07-17 | 2004-01-21 | �Ϻ���ͨ��ѧ | Quick gas jet mixer with high homogeneity |
| CN2612842Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Circulation opposite flushing type regulating valve |
| CN201258312Y (en) * | 2008-06-06 | 2009-06-17 | 曹祖斌 | Interior heat type multiple layer gas distribution carbonization furnace |
| CN202628316U (en) * | 2012-05-15 | 2012-12-26 | 东风汽车有限公司 | Labyrinth turbulent flow type mixer |
| CN205261008U (en) * | 2015-12-31 | 2016-05-25 | 杭州华惠阀门有限公司 | Relief valve |
-
2018
- 2018-06-15 CN CN201810618668.0A patent/CN108412641A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2178011A1 (en) * | 1996-06-03 | 1997-12-04 | G. Campbell Perry | Fuel injection system |
| DE10032190A1 (en) * | 2000-07-01 | 2002-03-21 | Bosch Gmbh Robert | Gas burner with combustion body of porous material has at least one more or less central cavity in combustion body |
| US20020148451A1 (en) * | 2001-04-13 | 2002-10-17 | Takayuki Yamamoto | Gas injection device of gas engine |
| CN1468651A (en) * | 2002-07-17 | 2004-01-21 | �Ϻ���ͨ��ѧ | Quick gas jet mixer with high homogeneity |
| CN2612842Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Circulation opposite flushing type regulating valve |
| CN201258312Y (en) * | 2008-06-06 | 2009-06-17 | 曹祖斌 | Interior heat type multiple layer gas distribution carbonization furnace |
| CN202628316U (en) * | 2012-05-15 | 2012-12-26 | 东风汽车有限公司 | Labyrinth turbulent flow type mixer |
| CN205261008U (en) * | 2015-12-31 | 2016-05-25 | 杭州华惠阀门有限公司 | Relief valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237094A (en) * | 2020-03-11 | 2020-06-05 | 广西玉柴机器股份有限公司 | Large-scale gas engine mixer |
| US20230313760A1 (en) * | 2020-07-28 | 2023-10-05 | Cummins Inc. | Gaseous fuel-air mixer with higher mixture uniformity |
| US11933250B2 (en) * | 2020-07-28 | 2024-03-19 | Cummins Inc. | Gaseous fuel-air mixer with higher mixture uniformity |
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| SE01 | Entry into force of request for substantive examination |