CN204572272U - Aalcohols fuel heating system in duel fuel engine - Google Patents
Aalcohols fuel heating system in duel fuel engine Download PDFInfo
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- CN204572272U CN204572272U CN201520181896.8U CN201520181896U CN204572272U CN 204572272 U CN204572272 U CN 204572272U CN 201520181896 U CN201520181896 U CN 201520181896U CN 204572272 U CN204572272 U CN 204572272U
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- methyl alcohol
- temperature
- delivery pipe
- heating system
- electromagnetic relay
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- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to Aalcohols fuel heating system in duel fuel engine.Its objective is as improving methyl alcohol atomization quality in diesel oil/Methanol Compound Combustion Mode motor.Aalcohols fuel heating system in duel fuel engine, comprising: methyl alcohol delivery pipe 5, its two ends distribution rapid pipe joint 3,6; Be wrapped in the electric heating member 4 of methyl alcohol delivery pipe periphery; Electromagnetic relay 2, connects electric heating member; Be distributed in the temperature transducer 7 of methyl alcohol delivery pipe outlet end; Temperature controlling instrument 1, according to unlatching or the shutoff of the numerical control electromagnetic relay of temperature transducer; The power switch 8 of system.The beneficial effects of the utility model are: temperature controlling instrument realizes intelligent control to electromagnetic relay, prevents methyl alcohol overheated and seethes with excitement, without the need to artificial interference when methanol temperature does not reach setting temperature requirement.
Description
Technical field:
The utility model relates to duel fuel engine, relates to Aalcohols fuel heating system in duel fuel engine further.
Background technique:
Along with petroleum resources are day by day in short supply and environmental requirement is further strict, the development of internal-combustion engine faces huge challenge, alcohols, ethers, biomass fuel wet goods oil replacement fuel effectively can improve the emission performance of internal-combustion engine, therefore the attention of people is obtained gradually, wherein alcohols develops rapidly with advantages such as wide material sources, with low cost and technology maturations, and now existing methanol vehicle and ethanol automobile etc. are at actual motion.
For diesel engine, alcohols mainly contains three kinds of modes as the application of fuel in diesel engine: one, direct mixing method, namely utilizing synthetics that alcohols is dissolved in diesel oil, easily there is stratification in the change of the fuel combination Yin Wendu that this method obtains etc., and can not vast scale blending, two, duel fuel injector method, namely has two oil sprayers in cylinder head, and one of them is for spraying diesel oil, and another is for spraying alcohol, and this method is too large to structural modification such as cylinder head, and air cylinder head structure is compact not easily installs, three, combined burning method, namely at intake duct, spray alcohol device is installed, alcohol sprays into intake duct and air and forms homogeneous charge and enter cylinder by diesel oil ignited, this kind of method more and more comes into one's own, wherein teach diesel oil/Methanol Compound Combustion Mode (Diesel Methanol CompoundCombustion disclosed in Chinese patent literature CN1470752A with University Of Tianjin Yao Chunde, DMCC) technology is the most representative, this technology is diesel oil/Methanol Compound Combustion Mode, namely methyl alcohol is sprayed at intake duct, methyl alcohol and air form homogeneous charge and enter cylinder by diesel oil ignited, compare former machine, methanol tank that diesel oil/Methanol Compound Combustion Mode motor is many, methanol pump, methyl alcohol filter cleaner, spray alcohol device, methyl alcohol ECU and wire harness etc., require lower to former car in actual applications, do not do large change, easy for installation, powerful, operation cost is low, effectively can also reduce NO
xdischarge with PM.But also there are some problems in diesel oil/Methanol Compound Combustion Mode motor, it is bad owing to being atomized that such as methyl alcohol sprays into intake duct through spray alcohol device, methyl alcohol drop can not fully mix with air, cause methyl alcohol drop can not Thorough combustion, the unregulated exhaust such as methyl alcohol, formaldehyde is raised, the methyl alcohol that temperature is lower in addition directly sprays into the temperature that intake duct can reduce air inlet, causes motor easily to stop working when low-load, limits the diesel oil/operation of Methanol Compound Combustion Mode pattern when low-load.
Summary of the invention:
For improving methyl alcohol atomization quality in diesel oil/Methanol Compound Combustion Mode motor, expand the diesel oil/running boundary of Methanol Compound Combustion Mode pattern when low-load, the utility model provides Aalcohols fuel heating system and method in a kind of duel fuel engine simultaneously.
The technical solution of the utility model is:
Aalcohols fuel heating system in duel fuel engine, comprising: methyl alcohol delivery pipe 5, its two ends distribution rapid pipe joint 3,6; Be wrapped in the electric heating member 4 of methyl alcohol delivery pipe periphery; Electromagnetic relay 2, connects electric heating member; Be distributed in the temperature transducer 7 of methyl alcohol delivery pipe outlet end; Temperature controlling instrument 1, according to unlatching or the shutoff of the numerical control electromagnetic relay of temperature transducer; The power switch 8 of system.
The power supply voltage of described temperature controlling instrument is preferably 12V or 24V, mates as far as possible with the output voltage of car accumulator.
The form of described electric heating member can be heat tape or resistance wire.
As further preferred version: methyl alcohol delivery pipe adopts the pipe of resistance to alcohol, and outer surface has spiral chute, heat tape or resistance wire distribution wherein, facilitate the coated heat-insulation material of appearance.
Aalcohols fuel heating means in the duel fuel engine that said system realizes, process is as follows:
At unlatching diesel oil/methyl alcohol double fuel combustion mode t
1within before moment 3-5 minute, turn on the power switch 8, set the heating-up temperature T of temperature controlling instrument
0, allow the abundant preheating of methyl alcohol delivery pipe, ensure that the methyl alcohol entering spray alcohol device from the beginning is fully heated, thus realize methyl alcohol and be well atomized;
Temperature controlling instrument adopts PID to control, when temperature transducer records the temperature of methyl alcohol delivery pipe outlet end lower than setting temperature T
0time, temperature controlling instrument controls electromagnetic relay 2 and closes, and continues to power to electric heating member, until the temperature T that temperature transducer records methyl alcohol delivery pipe reaches T
0; Work as t
2the temperature T that moment temperature transducer records methyl alcohol delivery pipe outlet end exceedes setting temperature T
0, or when temperature rise rate in methyl alcohol delivery pipe is excessive, temperature controlling instrument all can control electromagnetic relay and disconnect, and stops powering to electric heating member, and so forth, makes the methanol temperature T in methyl alcohol delivery pipe maintain setting temperature T
0left and right.
The beneficial effects of the utility model are:
(1) temperature controlling instrument realizes intelligent control to electromagnetic relay, prevents methyl alcohol overheated and seethes with excitement, without the need to artificial interference when methanol temperature does not reach setting temperature requirement.
(2) methyl alcohol delivery pipe two ends adopt rapid pipe joint to be simple and easy to install, easy to use.
(3) this heating equipment can be closed, capable of fast starting the device when motor starts to spray methyl alcohol when the operating modes such as startup and idling do not spray methyl alcohol.
Accompanying drawing illustrates:
Fig. 1 is the structure composition schematic diagram of the utility model system.In figure, 1 represents temperature controlling instrument, and 2 represent electromagnetic relay, 3 rapid pipe joints representing methyl alcohol delivery pipe entry end, and 4 represent electric heating member, and 5 represent methyl alcohol delivery pipe, and 6 rapid pipe joints representing methyl alcohol delivery pipe outlet end, 7 representation temperature sensors, 8 represent power switch.
Fig. 2 is heating-up temperature tendency chart over time in methyl alcohol delivery pipe.
Embodiment:
Implementation procedure of the present utility model is described in detail below in conjunction with accompanying drawing.
Aalcohols fuel heating system in duel fuel engine, comprising: methyl alcohol delivery pipe 5, its two ends distribution rapid pipe joint 3,6; Be wrapped in the electric heating member 4 of methyl alcohol delivery pipe periphery; Electromagnetic relay 2, connects electric heating member; Be distributed in the temperature transducer 7 of methyl alcohol delivery pipe outlet end; Temperature controlling instrument 1, according to unlatching or the shutoff of the numerical control electromagnetic relay of temperature transducer; The power switch 8 of system.
The power supply voltage of described temperature controlling instrument is preferably 12V or 24V, mates as far as possible with the output voltage of car accumulator; Described electric heating member be heat tape or resistance wire; Methyl alcohol delivery pipe adopts the pipe of resistance to alcohol, and outer surface has spiral chute, and heat tape or resistance wire distribution wherein, facilitate the coated heat-insulation material of appearance.
Working procedure is as follows:
When motor starts start or be in idling mode, because operating temperature etc. does not reach requirement, motor works under pure diesel fuel mode, can run diesel oil/methyl alcohol double fuel combustion mode when diesel engine reaches steady-working state.
At unlatching diesel oil/methyl alcohol double fuel combustion mode t
1within before moment 3-5 minute, turn on the power switch, set the heating-up temperature T of temperature controlling instrument
0, allow the abundant preheating of methyl alcohol delivery pipe, ensure that the methyl alcohol entering spray alcohol device from the beginning is fully heated, thus realize methyl alcohol and be well atomized.Temperature T
0arrange according to operating ambient temperature T
1determine flexibly Deng other factors, when engine operation is at ambient temperature T
1under higher condition, T
0can be relatively lower, to save electric energy; When engine operation is at ambient temperature T
1under lower condition, T
0can relatively higher (boiling point 68 DEG C of methyl alcohol under normal pressure, T
0arrange unsuitable too high), to reach the object of rapid heating methyl alcohol.Temperature controlling instrument adopts PID to control, when temperature transducer records the temperature T of methyl alcohol delivery pipe outlet end lower than setting temperature T
0time, temperature controlling instrument controls electromagnetic relay and closes, and continues to power to heat tape or resistance wire, until the temperature T that temperature transducer records in methyl alcohol delivery pipe reaches T
0; Work as t
2the temperature T that moment temperature transducer records methyl alcohol delivery pipe outlet end exceedes setting temperature T
0and temperature rise rate in methyl alcohol delivery pipe excessive time, temperature controlling instrument all can control electromagnetic relay and disconnect, and stops powering to heat tape or resistance wire, and so forth, makes the methanol temperature T in methyl alcohol delivery pipe maintain setting temperature T
0left and right.
Diesel oil/Methanol Compound Combustion Mode pattern, i.e. t is closed before engine stop work
3moment disconnecting power switch 8, stops the heating to methyl alcohol.
The utility model is not limited to above-mentioned embodiment; based on the multiple conversion that the utility model carries out; ethanol is made as changed by methyl alcohol; switch and temperature controlling instrument are incorporated in Engine ECU; realize the automatic unlatching to methyl alcohol heating function and shutoff; heat tape or resistance wire change two-way into by single channel on methyl alcohol delivery pipe or multichannel is arranged; the heating power of heat tape or resistance wire has different gear available; methyl alcohol delivery pipe becomes bend pipe etc. from straight tube, and these all belong within protection domain of the present utility model.
Claims (4)
1. Aalcohols fuel heating system in duel fuel engine, is characterized in that, comprising: methyl alcohol delivery pipe (5), the rapid pipe joint (3,6) of its two ends distribution; Be wrapped in the electric heating member (4) of methyl alcohol delivery pipe periphery; Electromagnetic relay (2), connects electric heating member; Be distributed in the temperature transducer (7) of methyl alcohol delivery pipe outlet end; Temperature controlling instrument (1), according to unlatching or the shutoff of the numerical control electromagnetic relay of temperature transducer; The power switch (8) of system.
2. Aalcohols fuel heating system in duel fuel engine according to claim 1, it is characterized in that, the power supply voltage of described temperature controlling instrument is 12V or 24V.
3. Aalcohols fuel heating system in duel fuel engine according to claim 2, it is characterized in that, described electric heating member is heat tape or resistance wire.
4. Aalcohols fuel heating system in duel fuel engine according to claim 3, it is characterized in that, methyl alcohol delivery pipe adopts the pipe of resistance to alcohol, and outer surface has spiral chute, and heat tape or resistance wire distribution are wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181896.8U CN204572272U (en) | 2015-03-27 | 2015-03-27 | Aalcohols fuel heating system in duel fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181896.8U CN204572272U (en) | 2015-03-27 | 2015-03-27 | Aalcohols fuel heating system in duel fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572272U true CN204572272U (en) | 2015-08-19 |
Family
ID=53864920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181896.8U Expired - Fee Related CN204572272U (en) | 2015-03-27 | 2015-03-27 | Aalcohols fuel heating system in duel fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763562A (en) * | 2015-03-27 | 2015-07-08 | 天津大学 | Heating system and method for alcohol fuel in dual-fuel engine |
-
2015
- 2015-03-27 CN CN201520181896.8U patent/CN204572272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763562A (en) * | 2015-03-27 | 2015-07-08 | 天津大学 | Heating system and method for alcohol fuel in dual-fuel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20210327 |