CN111237093A - Mixer structure of electric heating natural gas engine - Google Patents
Mixer structure of electric heating natural gas engine Download PDFInfo
- Publication number
- CN111237093A CN111237093A CN202010158850.XA CN202010158850A CN111237093A CN 111237093 A CN111237093 A CN 111237093A CN 202010158850 A CN202010158850 A CN 202010158850A CN 111237093 A CN111237093 A CN 111237093A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas engine
- spoilers
- spoiler
- electrically heated
- 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000003345 natural gas Substances 0.000 title claims abstract description 31
- 238000005485 electric heating Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 40
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 comprise CO2 and H2O Chemical compound 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
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- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/135—Fuel-air mixture
-
- 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)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
Abstract
The invention discloses an electrically heated natural gas engine mixer structure, relates to a mixer and mainly solves the technical problem that an existing EGR mixer does not have heating deicing function. The invention can effectively prevent the mixer of the natural gas engine from freezing, thereby preventing the problem that the engine cannot be started or stalled due to the freezing of the EGR system.
Description
Technical Field
The invention relates to a mixer, in particular to an electrically heated natural gas engine mixer structure.
Background
In order to meet the national six-emission regulations, the mainstream natural gas engines adopt a technical route of equivalent combustion plus EGR (exhaust gas recirculation), combustion products of natural gas mainly comprise CO2 and H2O, and EGR gas also mainly comprises the 2 components. When the exhaust gas is just discharged from the exhaust pipe, the temperature is high, the H2O exists in a gaseous state, and after the gas passes through the EGR cooling system, the gaseous H2O can be condensed into liquid water due to the temperature reduction and remains in the EGR mixer. In cold regions, the liquid water freezes to become solid, clogging the EGR mixer and piping, causing the engine to fail to start or stall.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and the invention aims to provide an electrically heated natural gas engine mixer structure which can effectively solve the problem of icing of a mixer.
The technical scheme of the invention is as follows: the utility model provides an electrical heating natural gas engine blender structure, includes the shell, be equipped with a plurality of spoilers in the shell, the spoiler surface is equipped with heating element, through heating element is to the spoiler heating deicing.
As a further improvement, the heating element is an electric heating wire.
Further, the heating element is a patch type electric heating wire.
Further, a plurality of the spoilers are evenly arranged around the axial center line of the housing.
Further, the spoiler is in a spiral blade structure.
Furthermore, a mandrel for connecting the spoilers is arranged at the axial lead of the shell.
Furthermore, the number of the spoilers is 3-5, and a central symmetrical star-shaped distribution structure is arranged between the spoilers.
Furthermore, a gas pipeline is arranged in the spoiler, an air inlet pipe communicated with the gas pipeline is arranged on the shell, and a nozzle communicated with the gas pipeline is arranged on the spoiler.
Furthermore, a plurality of gas pipelines are arranged in the spoiler, and the rear end of the spoiler is fully distributed with nozzles communicated with the gas pipelines.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the plurality of spoilers are arranged in the shell, the heating elements are arranged on the surfaces of the spoilers, and the spoilers are heated by the heating elements to deice, so that the mixer of the natural gas engine can be effectively prevented from being frozen, the problem that the engine cannot be started or stalled due to the freezing of an EGR (exhaust gas recirculation) system is prevented, and meanwhile, the mixed gas of natural gas and air can be preheated, the combustion efficiency of the mixed gas is improved, and the working efficiency of the engine is improved.
2. According to the invention, the fuel gas pipeline is arranged in the spoiler, the nozzle is arranged at the rear end of the spoiler, natural gas flows to each spoiler through the fuel gas pipeline, is sprayed out from the nozzle at the rear end of the spoiler, is fully mixed with air from the front end of the spoiler in a turbulent flow manner, and finally enters the engine for combustion, so that the mixed gas of the natural gas and the air can be more uniform, the combustion efficiency of the mixed gas is improved, and the working performance of the engine is ensured.
3. According to the invention, the spoiler is arranged to be of the spiral blade structure, the air forms rolling wadding flow when flowing from the front end to the rear end of the spoiler, and the rolling wadding flow air is mixed with the natural gas, so that the uniformity of the mixed gas of the natural gas and the air can be further improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a left side view structural diagram of the present invention.
Wherein: 1-shell, 2-spoiler, 3-electric heating wire, 4-mandrel, 5-gas pipeline, 6-gas inlet pipe.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1-3, an electrically heated natural gas engine mixer structure includes a housing 1, a plurality of spoilers 2 are disposed in the housing 1, and heating elements 3 are disposed on surfaces of the spoilers 2, and the spoilers 2 are heated by the heating elements 3 to remove ice. Can effectively prevent that the blender of natural gas engine from freezing to prevent to lead to the unable problem that starts or flame-out of engine because the EGR system freezes, simultaneously, can also preheat the mist of natural gas and air, improve the combustion efficiency of mist, thereby improve the work efficiency of engine.
In this embodiment, heating element 3 is electric heating wire, and is preferred, and heating element 3 is paster type electric heating wire, and heating element 3 is attached on 2 surfaces of spoiler along with the shape for 2 heated areas of spoiler are big, and the rate of rise of temperature is fast, and it is effectual to heat.
The spoilers 2 are uniformly arranged around the axial lead of the shell 1, the spoilers 2 are in a spiral blade structure, air forms rolling floc flow when flowing from the front end to the rear end of the spoilers 2, and the rolling floc flow air is mixed with natural gas, so that the uniformity of mixed gas of the natural gas and the air can be further improved. The shaft axis of the shell 1 is provided with a mandrel 4 which is connected with each spoiler 2, so that the working strength of each spoiler 2 can be improved.
Preferably, the number of the spoilers 2 is 3-5, and a central symmetrical star-shaped distribution structure is arranged between the spoilers 2, so that the air circulation area is large, and the mixing effect is good.
A gas pipeline 5 is arranged in the spoiler 2, an air inlet pipe 6 communicated with the gas pipeline 5 is arranged on the shell 1, a nozzle communicated with the gas pipeline 5 is arranged on the spoiler 2, and gas of the EGR system is input from the front end of the spoiler 2. The natural gas enters from the gas inlet pipe 6, flows to each spoiler 2 through the gas pipeline 5, is sprayed out from the nozzle at the rear end of each spoiler 2, is fully mixed with the air from the front end of each spoiler 2 in a turbulent flow manner, and finally enters the engine for combustion, so that the mixed gas of the natural gas and the air is more uniform, the combustion efficiency of the mixed gas is improved, and the working performance of the engine is ensured.
Preferably, a plurality of gas pipelines 5 are arranged in the spoiler 2, and the rear end of the spoiler 2 is fully distributed with nozzles communicated with the gas pipelines 5, so that the uniformity of mixed gas can be improved.
The spout includes straight hole and the horn mouth of intercommunication each other, and straight hole and gas pipeline 5 intercommunication, the diameter in straight hole is less than the diameter of gas pipeline 5. When the gas flows through the straight hole, the air pressure is increased, when the gas flows through the horn hole, the volume is suddenly increased, the air pressure is reduced, the gas is outwards expanded, and the gas and the air can be mixed more uniformly.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (9)
1. An electrically heated natural gas engine mixer structure comprises a shell (1), and is characterized in that a plurality of spoilers (2) are arranged in the shell (1), heating elements (3) are arranged on the surfaces of the spoilers (2), and the spoilers (2) are heated by the heating elements (3) to be deiced.
2. An electrically heated natural gas engine mixer arrangement, according to claim 1, characterized in that the heating element (3) is an electric heating wire.
3. An electrically heated natural gas engine mixer arrangement, according to claim 2, characterized in that the heating element (3) is a patch type electric heating wire.
4. An electrically heated natural gas engine mixer structure according to claim 1, characterized in that a plurality of said spoilers (2) are arranged evenly around the axial center line of said casing (1).
5. An electrically heated natural gas engine mixer structure according to claim 1, characterized in that the spoiler (2) is a spiral-bladed structure.
6. An electrically heated natural gas engine mixer structure according to any one of claims 1 to 5, characterized in that a spindle (4) connecting the spoilers (2) is provided at the axial center line of the housing (1).
7. The electrically heated natural gas engine mixer structure according to claim 6, wherein the number of the spoilers (2) is 3-5, and a central symmetrical star-shaped distribution structure is formed between the spoilers (2).
8. An electrically heated natural gas engine mixer structure according to claims 1-5, 7, characterized in that a gas pipeline (5) is arranged in the spoiler (2), an air inlet pipe (6) communicated with the gas pipeline (5) is arranged on the outer shell (1), and a nozzle communicated with the gas pipeline (5) is arranged on the spoiler (2).
9. An electrically heated natural gas engine mixer structure according to claim 8, characterized in that a plurality of gas pipes (5) are provided in the spoiler (2), and the rear end of the spoiler (2) is covered with nozzles communicating with the gas pipes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158850.XA CN111237093A (en) | 2020-03-09 | 2020-03-09 | Mixer structure of electric heating natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158850.XA CN111237093A (en) | 2020-03-09 | 2020-03-09 | Mixer structure of electric heating natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111237093A true CN111237093A (en) | 2020-06-05 |
Family
ID=70873170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010158850.XA Pending CN111237093A (en) | 2020-03-09 | 2020-03-09 | Mixer structure of electric heating natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111237093A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015938A (en) * | 2002-08-14 | 2004-02-21 | 현대모비스 주식회사 | heating apparatus for LPG engine |
| KR20100043766A (en) * | 2008-10-21 | 2010-04-29 | 우진공업주식회사 | Apparatus for recirculating exhaust gas for internal-combustion engines |
| CN204511708U (en) * | 2015-02-26 | 2015-07-29 | 成都耐尔特科技有限公司 | A kind of turbulent for mixer |
| CN105189962A (en) * | 2012-12-07 | 2015-12-23 | 埃贝赫卡腾有限两合公司 | Mixer for aftertreatment of exhaust gases |
| CN207048878U (en) * | 2017-03-24 | 2018-02-27 | 江苏弗莱因工程技术有限公司 | A kind of mixer for natural gas in use for engine |
| CN211819729U (en) * | 2020-03-09 | 2020-10-30 | 广西玉柴机器股份有限公司 | Mixer structure of electric heating natural gas engine |
-
2020
- 2020-03-09 CN CN202010158850.XA patent/CN111237093A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015938A (en) * | 2002-08-14 | 2004-02-21 | 현대모비스 주식회사 | heating apparatus for LPG engine |
| KR20100043766A (en) * | 2008-10-21 | 2010-04-29 | 우진공업주식회사 | Apparatus for recirculating exhaust gas for internal-combustion engines |
| CN105189962A (en) * | 2012-12-07 | 2015-12-23 | 埃贝赫卡腾有限两合公司 | Mixer for aftertreatment of exhaust gases |
| CN204511708U (en) * | 2015-02-26 | 2015-07-29 | 成都耐尔特科技有限公司 | A kind of turbulent for mixer |
| CN207048878U (en) * | 2017-03-24 | 2018-02-27 | 江苏弗莱因工程技术有限公司 | A kind of mixer for natural gas in use for engine |
| CN211819729U (en) * | 2020-03-09 | 2020-10-30 | 广西玉柴机器股份有限公司 | Mixer structure of electric heating natural gas engine |
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