CN111188707A - Electrified auxiliary heating type exhaust gas recirculation mixer - Google Patents
Electrified auxiliary heating type exhaust gas recirculation mixer Download PDFInfo
- Publication number
- CN111188707A CN111188707A CN202010159363.5A CN202010159363A CN111188707A CN 111188707 A CN111188707 A CN 111188707A CN 202010159363 A CN202010159363 A CN 202010159363A CN 111188707 A CN111188707 A CN 111188707A
- Authority
- CN
- China
- Prior art keywords
- mixer
- electric heating
- exhaust gas
- gas recirculation
- engine
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 43
- 238000005485 electric heating Methods 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a charged auxiliary heating type waste gas recirculation mixer which comprises a mixer body, wherein an air inlet and an air outlet are formed in the mixer body, a containing cavity surrounding the mixing cavity of the mixer body is formed in a shell of the mixer body, and an electric heating device surrounding the mixing cavity of the mixer body is arranged on the wall of the containing cavity. The electrified auxiliary heating type exhaust gas recirculation mixer is reasonable in structural design and belongs to the technical field of engine exhaust gas recycling, the mixer integrates a heating function, an electric heating device is used for carrying out electric auxiliary heating on a mixer shell, the icing phenomenon in the EGR mixer is prevented, the icing in the mixer can be effectively and quickly removed, the reliability of an EGR system is improved, and the problem of flameout caused by the icing of the EGR mixer can be solved.
Description
Technical Field
The invention relates to an engine exhaust gas recycling technology, in particular to an electrified auxiliary heating type exhaust gas recirculation mixer.
Background
At present, in order to meet the national six-emission regulations, the gas engine adopts a technical route of equivalent combustion, but because the combustion temperature in a cylinder of the technical route is higher, EGR (exhaust gas recirculation) gas must be introduced to reduce the combustion temperature in the cylinder, and the reliability of the engine is improved. The EGR gas is mainly composed of CO2 and H2O, wherein H2O exists mainly in a gaseous state, but when the EGR gas passes through the EGR system piping and the mixer, the gaseous water is condensed into liquid water and remains in the EGR mixer due to temperature reduction, and in cold regions, the liquid water is frozen to become solid, and the EGR mixer is blocked, so that poor ventilation causes the engine to fail to start or stop.
Disclosure of Invention
The present invention addresses some of the above-identified deficiencies in the art and aims to provide an electrically assisted heated egr mixer that can assist in heating the mixer.
In order to achieve the purpose, the invention provides a charged auxiliary heating type exhaust gas recirculation mixer which comprises a mixer body, wherein an air inlet and an air outlet are formed in the mixer body, a containing cavity surrounding the mixing cavity of the mixer body is formed in a shell of the mixer body, and an electric heating device surrounding the mixing cavity of the mixer body is arranged on the wall of the containing cavity.
Furthermore, the electric heating device also comprises an electric heating control circuit for controlling the electric heating device to be powered on or powered off, and the electric heating device is an electric heating ring.
Furthermore, the electric heating control circuit comprises a power supply and an electric heating control relay switch, and the electric heating control relay switch is connected with an engine electronic control unit of the engine.
Furthermore, heat-conducting liquid is arranged in the accommodating cavity.
Advantageous effects
Compared with the prior art, the charged auxiliary heating type exhaust gas recirculation mixer has the following beneficial effects: according to the electrified auxiliary heating type exhaust gas recirculation mixer, the mixer integrates a heating function, and the electric heating device is used for carrying out electric auxiliary heating on the mixer shell, so that the phenomenon of icing in the EGR mixer is prevented, the icing in the mixer can be effectively and quickly removed, the reliability of an EGR system is improved, and the problem of flameout caused by icing of the EGR mixer can be solved; the condition that the engine cannot be started or shut down in a cold region can be prevented, and the working reliability of the engine is ensured.
Drawings
FIG. 1 is a schematic diagram of the configuration of an electrically assisted heated exhaust gas recirculation mixer of the present invention;
fig. 2 is a schematic diagram of a temperature control configuration for an electrically assisted heated exhaust gas recirculation valve of the present invention.
In the figure: 1. a mixer body; 2. an air inlet; 3. an air outlet; 4. an accommodating chamber; 5. an electric heating device; 6. an electrical heating control circuit; 7. a power source; 8. an electrical heating control relay switch; 9. an engine electronic control unit; 10. a control valve; 12. an engine; 13. through the cooling water conduit.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
The specific embodiments of the present invention are such that: as shown in fig. 1, a charged auxiliary heating type exhaust gas recirculation mixer comprises a mixer body 1, wherein an air inlet 2 and an air outlet 3 are arranged on the mixer body 1, a containing cavity 4 surrounding the mixing cavity of the mixer body 1 is arranged on a shell of the mixer body 1, an electric heating device 5 surrounding the mixing cavity surrounding the mixer body 1 is arranged on the cavity wall of the containing cavity 4, and the electric heating device 5 is an electric heating ring. In this electrified auxiliary heating formula Exhaust Gas Recirculation (EGR) blender, utilize electric heater unit 5 to carry out electric auxiliary heating to the blender casing, prevent to appear freezing phenomenon in the EGR blender, can effectively get rid of the blender in freeze fast, promote EGR system reliability, can solve because of the frozen flame-out problem that leads to of EGR blender.
In this embodiment, still include the electrical heating control circuit 6 of control electrical heating device 5 circular telegram or outage, electrical heating control circuit 6 includes power 7 and electrical heating control relay switch 8, electrical heating device 5 with 220 volt voltage are connected through the wire, electrical heating control relay switch 8 is connected with the engine electronic control unit 9 of engine, heating control also can adopt manual control, be about to the relay change into manual control switch, break off the switch again after heating for certain time or reaching certain inlet air temperature.
In this embodiment, the heat conducting liquid is provided in the accommodating chamber 4, and the casing of the mixer body 1 can be uniformly heated by the heat conducting liquid.
The housing chamber 4 is filled with a heat-conducting liquid through which the heat generated by the electric heating device 5 is transferred exclusively to the housing of the EGR mixer body 1. The electric heater 5 is made of metal pipe wound around the inner cavity wall and filled with electrically heating wire, which is then filled with insulating material such as magnesia powder to fix the electrically heating wire in the pipe without contacting the pipe wall.
Two ends of a lead in the electric heating control circuit 6 are connected with the electric heating wires, the other two ends are connected with a 220V power supply, one part of the electric wires is arranged in the accommodating cavity 4, one part of the electric wires penetrates out through the cavity wall, and the penetrating part can adopt any form of sealing to prevent liquid from leaking. When the EGR mixer needs to be heated, the electronic control unit 9 of the engine outputs a control signal to switch on the electric heating control relay switch 8, the relay is closed, current flows through the electric heating wire to enable the electric heating wire to generate heat, and the heat is transferred to the shell of the mixer body 1 through the heat-conducting liquid. The heating time may be determined based on the intake air temperature measured by the engine, and when the intake air temperature reaches a target value, the engine electronic control unit 9 cuts off the control of the relay, and the heating is stopped.
Temperature control of the exhaust gas recirculation mixer: as shown in fig. 2, a method of mixer heating control obtains an ambient temperature and a mixer outlet temperature; when the ambient temperature and the temperature of the air outlet 3 of the mixer are both lower than a first threshold value, controlling the electric heating device 5 to heat the mixer body 1; when the ambient temperature or the mixer outlet temperature is higher than the second threshold value, the heating of the mixer body 1 is stopped. The first threshold and the second threshold can be set according to actual working conditions, for example, the first threshold is 0-5 ℃ and the second threshold is 20-25 ℃.
Then, when the engine 12 is in a non-warm-up operation condition, the mixer is heated by the electric heating device 5; when the engine is in a warm-up cycle, heating of the mixer is stopped.
Then, the cooling pipeline of the engine coolant is connected with the coolant water pipe of the mixer through a cooling water pipeline 13, a control valve 10 is arranged on the cooling water pipeline 13, the engine electronic control unit 9 can control the opening or closing of the control valve 10, and when the engine runs in the full working condition, the mixer body can be heated through the engine coolant.
In this embodiment, the mixer 1 is heated by the electric heating device 5 and the engine coolant, and the method specifically further includes:
when the engine is started in a cold mode or the temperature of the engine coolant is lower than a first set value, the mixer is heated by using the electric heating device 5; when the temperature of the engine coolant is higher than a second set value, heating the mixer by using the engine coolant; the first set value and the second set value can be set according to actual working conditions, for example, the first set value is 70-80 ℃, and the second set value is 80-90 ℃;
when the engine is in a non-warm-up operation working condition, the electric heating device 5 is used for heating the mixer; after the engine is in a warm-up cycle, the mixer is heated using engine coolant.
In the present embodiment, the electric heating device 5 and the control valve 10 are electrically connected to the engine electronic control unit 9. The engine electronic control unit 9 acquires the ambient temperature, the outlet temperature of the mixer, and the engine coolant temperature through temperature sensors, respectively.
The engine electronic control unit 9 can control the electric heating wire to heat the shell of the mixer body 1 through the electric heating control relay switch 8, thereby heating the mixer.
According to the invention, the ambient temperature and the mixer outlet temperature are obtained, and the mixer is actively heated according to the ambient temperature and the mixer outlet temperature, so that the problem that the running of the engine is influenced by icing of the existing mixer and mixer can be effectively solved, and the working stability of the engine is improved. The mixer is heated by the electric heating device 5 and the engine coolant, the electric heating device 5 and the engine coolant are switched according to the operating condition of the engine, when the coolant is heated and the heating requirement cannot be met, an electric auxiliary heating scheme is adopted, the coolant is only heated when the coolant is heated and the requirement is met, the influence of the auxiliary heating device on the comprehensive economy of the whole vehicle can be effectively reduced, the environment temperature of the vehicle and the engine is increased, and the reliability of an EGR system and the engine is improved.
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 (4)
1. The utility model provides a hot type exhaust gas recirculation mixer of electrified auxiliary heating, includes blender body (1), is equipped with air inlet (2) and gas outlet (3) on blender body (1), its characterized in that, be equipped with on the casing of blender body (1) and encircle holding chamber (4) that the mixing chamber of blender body (1) set up, be equipped with on the chamber wall that holds chamber (4) and encircle electric heater unit (5) that the mixing chamber of encircleing blender body (1) set up.
2. A charged auxiliary heating type egr mixer according to claim 1, further comprising an electric heating control circuit (6) for controlling the energization or de-energization of said electric heating means (5), said electric heating means (5) being an electric heating coil.
3. A charged-assisted heating type exhaust gas recirculation mixer according to claim 2, characterized in that the electric heating control circuit (6) comprises a power source (7) and an electric heating control relay switch (8), the electric heating control relay switch (8) being connected to an engine electronic control unit (9) of the engine.
4. A charged auxiliary heating type exhaust gas recirculation mixer according to claim 1, 2 or 3, characterized in that a heat-conducting liquid is provided in said accommodating chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159363.5A CN111188707A (en) | 2020-03-09 | 2020-03-09 | Electrified auxiliary heating type exhaust gas recirculation mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159363.5A CN111188707A (en) | 2020-03-09 | 2020-03-09 | Electrified auxiliary heating type exhaust gas recirculation mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188707A true CN111188707A (en) | 2020-05-22 |
Family
ID=70706923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159363.5A Pending CN111188707A (en) | 2020-03-09 | 2020-03-09 | Electrified auxiliary heating type exhaust gas recirculation mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188707A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012862A (en) * | 2020-09-01 | 2020-12-01 | 潍柴动力股份有限公司 | Starter control method and device, whole vehicle control system and mining truck |
| CN112065613A (en) * | 2020-08-12 | 2020-12-11 | 潍柴动力股份有限公司 | Bath heat mixer and heating method thereof |
| CN114352445A (en) * | 2021-12-14 | 2022-04-15 | 潍柴动力股份有限公司 | EGR valve assembly, engine with EGR valve assembly and control method of engine |
| CN114542269A (en) * | 2022-01-18 | 2022-05-27 | 东风汽车集团股份有限公司 | Intercooler, intercooler control method and related equipment |
| RU2809729C1 (en) * | 2020-08-12 | 2023-12-15 | Вэйчай Пауэр Ко., Лтд | Bath heating mixer and method for its heating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015938A (en) * | 2002-08-14 | 2004-02-21 | 현대모비스 주식회사 | heating apparatus for LPG engine |
| CN102414414A (en) * | 2009-05-07 | 2012-04-11 | 丰田自动车株式会社 | Vehicle heat management device |
| CN104214015A (en) * | 2013-06-03 | 2014-12-17 | 福特环球技术公司 | Systems and methods for heating a pre-compressor duct to reduce condensate formation |
| CN108180061A (en) * | 2017-12-27 | 2018-06-19 | 广西玉柴机器股份有限公司 | Catalyst converter electric heater unit |
| CN211692666U (en) * | 2020-03-09 | 2020-10-16 | 广西玉柴机器股份有限公司 | Electrified auxiliary heating type exhaust gas recirculation mixer |
-
2020
- 2020-03-09 CN CN202010159363.5A patent/CN111188707A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015938A (en) * | 2002-08-14 | 2004-02-21 | 현대모비스 주식회사 | heating apparatus for LPG engine |
| CN102414414A (en) * | 2009-05-07 | 2012-04-11 | 丰田自动车株式会社 | Vehicle heat management device |
| CN104214015A (en) * | 2013-06-03 | 2014-12-17 | 福特环球技术公司 | Systems and methods for heating a pre-compressor duct to reduce condensate formation |
| CN108180061A (en) * | 2017-12-27 | 2018-06-19 | 广西玉柴机器股份有限公司 | Catalyst converter electric heater unit |
| CN211692666U (en) * | 2020-03-09 | 2020-10-16 | 广西玉柴机器股份有限公司 | Electrified auxiliary heating type exhaust gas recirculation mixer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065613A (en) * | 2020-08-12 | 2020-12-11 | 潍柴动力股份有限公司 | Bath heat mixer and heating method thereof |
| WO2022032974A1 (en) * | 2020-08-12 | 2022-02-17 | 潍柴动力股份有限公司 | Bath heating mixer and heating method thereof |
| RU2809729C1 (en) * | 2020-08-12 | 2023-12-15 | Вэйчай Пауэр Ко., Лтд | Bath heating mixer and method for its heating |
| CN112012862A (en) * | 2020-09-01 | 2020-12-01 | 潍柴动力股份有限公司 | Starter control method and device, whole vehicle control system and mining truck |
| CN112012862B (en) * | 2020-09-01 | 2021-12-21 | 潍柴动力股份有限公司 | Starter control method and device, whole vehicle control system and mining truck |
| CN114352445A (en) * | 2021-12-14 | 2022-04-15 | 潍柴动力股份有限公司 | EGR valve assembly, engine with EGR valve assembly and control method of engine |
| CN114352445B (en) * | 2021-12-14 | 2023-01-24 | 潍柴动力股份有限公司 | EGR valve assembly, engine with EGR valve assembly and control method of engine |
| CN114542269A (en) * | 2022-01-18 | 2022-05-27 | 东风汽车集团股份有限公司 | Intercooler, intercooler control method and related equipment |
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