Conventional diesel engine uses the device of vegetable oil
Technical field
The utility model relates to engine art, and especially a kind of conventional diesel engine uses the device of vegetable oil.
Background technique
Diesel oil is a kind of important petroleum refining product, be non-renewable resources, quickening along with vehicle diesel oil trend in the world wide, the demand of following diesel oil can be more and more big, and the raising of exhausted day by day and people's environmental consciousness of petroleum resources, promoted countries in the world to accelerate the exploitation paces of diesel oil alternative fuel greatly, biodiesel has been subjected to the attention of various countries with its superior environmental-protecting performance.Vegetable oil is a kind of up-and-coming substitute fuel as a kind of renewable energy sources, but since vegetable oil and diesel oil physicochemical property different on diesel engine, use vegetable oil for a long time and can produce some problems.Main performance has: when low temperature, because the high viscosity of vegetable oil directly starts difficulty of diesel engine with vegetable oil, also be easier to cause the obstruction on fuel oil road.During lower temperature, directly adopt vegetable oil, easily cause the vegetable oil atomization badness, it is insufficient to burn, and cylinder block part carbon distribution is more serious, thereby makes diesel engine work bad, the component wear aggravation.In order to reduce the viscosity of vegetable oil, domestic general employing electric heater heats vegetable oil in fuel tank, in the hope of reducing the vegetable oil viscosity, still, so bigger power consumption will be arranged, and to the mobile diesel engine that uses, storage battery is difficult to bear.The long-term diesel engine that uses the vegetable oil operation, because the diesel engine fuel oil pump is from independent lubricating system, press in the oily process at plunger, vegetable oil is than diesel fuel lubricity difference, make fuel oil seepage aggravation in the pump housing, and limited from the fuel pump engine oil capacity of independent lubricating system, the vegetable oil of seepage enters in the machine oil, thereby cause the lubrication system performance of fuel pump to descend, easily make inefficacies such as fuel pump bearing.
The model utility content
The technical problems to be solved in the utility model is: the device that provides a kind of conventional diesel engine directly to use vegetable oil, purpose are to solve the problem that directly starts the diesel engine performance difference under the low-temperature condition with vegetable oil.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of conventional diesel engine uses the device of vegetable oil, comprises fuel tank, diesel engine, between the oil transfer pump on described fuel tank and the diesel engine through first oil pipe and the second oil pipe heat exchangers in series; Described oil transfer pump links to each other with filter cleaner by the 3rd oil pipe, described filter cleaner links to each other with fuel pump by the 4th oil pipe, described fuel pump links to each other with oil sprayer by high-pressure oil pipe, the 6th oil pipe, return tube and the 5th oil pipe are connected in threeway, described heat exchanger is connected with water-heating valve, and described heat exchanger links to each other with the pump entrance of described diesel engine by the 9th pipeline.
Further, the described conventional diesel engine device that uses vegetable oil also comprises first temperature detect switch (TDS), second temperature detect switch (TDS), storage battery and indcution heater; Described indcution heater heats described oil sprayer and described high-pressure oil pipe after by described storage battery power supply.
Further, the lubricant oil main oil gallery mouth of described diesel engine links to each other with described fuel pump by the 7th oil pipe, and described fuel pump links to each other with the oil sump of described diesel engine by the 8th oil pipe.
The beneficial effects of the utility model are, solved the defective that exists in the background technique, after adopting technique scheme, diesel engine has passed through laboratory reliability test in 100 hours and cargo ship real navigation test in 200 hours smoothly, open and inspect discovery after the off-test, except the oil sprayer carbon distribution reduces a lot, the no significant difference of other operation parts and combustion diesel fuel.The utility model is particularly useful for the engineering machinery of cargo ship, fixed operation etc., can directly use vegetable oil, and needn't carry out the conversion of diesel oil and vegetable oil.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Among the figure: 1. fuel tank; 2. first oil pipe; 3. heat exchanger; 4. second oil pipe; 5. oil transfer pump; 6. the 3rd oil pipe; 7. filter cleaner; 8. the 4th oil pipe; 9. high-pressure oil pipe; 10. oil sprayer; 11. the 5th oil pipe; 12. threeway; 13. the 6th oil pipe; 15. return tube; 16. fuel pump; 17. water-heating valve; 19. the 9th oil pipe; 20. pump entrance; 21. lubricant oil main oil gallery mouth; 22. the 7th oil pipe; 23. the 8th oil pipe; 25. storage battery; 26. first temperature detect switch (TDS); 27. second temperature detect switch (TDS); 28. indcution heater; 29. diesel engine.
Embodiment
With preferred embodiment the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of conventional diesel engine uses the device of vegetable oil, comprises fuel tank 1, diesel engine 29, between the oil transfer pump 5 on described fuel tank 1 and the diesel engine 29 through first oil pipe 2 and second oil pipe, 4 heat exchangers in series 3; Described oil transfer pump 5 links to each other with filter cleaner 7 by the 3rd oil pipe 6, described filter cleaner 7 links to each other with fuel pump 16 by the 4th oil pipe 8, described fuel pump 16 links to each other with oil sprayer 10 by high-pressure oil pipe 9, the 6th oil pipe 13, return tube 15 and the 5th oil pipe 11 are connected in threeway 12, described heat exchanger 3 is connected with water-heating valve 17, and described heat exchanger 3 links to each other with the pump entrance 20 of described diesel engine 29 by the 9th pipeline 19.
Further, a kind of conventional diesel engine uses the device of vegetable oil, also comprises first temperature detect switch (TDS) 26, second temperature detect switch (TDS) 27, storage battery 25 and indcution heater 28; Described indcution heater 28 heats described oil sprayer 10 and described high-pressure oil pipe 9 by described storage battery 25 power supply backs.
Further, the lubricant oil main oil gallery mouth 21 of described diesel engine 29 links to each other with described fuel pump 16 by the 7th oil pipe 22, and described fuel pump 16 links to each other with the oil sump of described diesel engine 29 by the 8th oil pipe 23.
Working principle of the present utility model is as follows: when ambient temperature during greater than 5 ℃, diesel engine 29 can directly start.Vegetable oil from fuel tank 1 through first oil pipe, 2 inflow heat exchangers 3, outflow heat exchanger arrives oil transmitting pump of diesel engine 5 through second oil pipe 4, through oil transfer pump 5 pressurizations, enter filter cleaner 7 from the 3rd oil pipe 6, filter the back and enter fuel pump 16 from the 4th oil pipe 8, be pressed into high pressure and enter oil sprayer 10 by high-pressure oil pipe 9, oil sprayer 10 oil spout immediately.The threeway 12 that oil sprayer 10 unnecessary vegetable oil flow on the fuel pump 16 through the 5th oil pipe 11, at this, according to the need of work of diesel engine, can flow into filter cleaner 7 from the 6th oil pipe 13, need not filter, can flow back to fuel pump 16 from the 4th oil pipe 8 and continue fuel feeding, if oil is unnecessary, then can flow back to fuel tank 1 from return tube 15, so design, directly flow back to fuel tank 1 with oil sprayer 10 oil returns and compare, can significantly reduce heat loss and the filtration resistance of fuel oil.After diesel engine 29 started, cooling liquid was carried out short circle in diesel engine 29, and temperature can rise very soon, utilize the water-heating valve 17 of diesel engine, the cooling liquid of heating is sent into heat exchanger 3, vegetable oil is heated, the aperture of control water-heating valve 17 makes the vegetable oil temperature at 50 ~ 60 ℃.The cooling liquid that flows out forms circulation through the pump entrance 20 of the 9th pipeline 19 inflow diesel engines 29.
When ambient temperature during less than 5 ℃, second temperature detect switch (TDS), 27 closures, 28 power supplies of 25 pairs of indcution heaters of storage battery are heated oil sprayer 10 and high-pressure oil pipe 9, fuel oil energy is normally atomized start diesel engine 29.When coolant temperature during greater than 80 ℃, cooling liquid first temperature detect switch (TDS) 26 disconnects, and stops heating.At this moment, 3 heating of vegetable oil heater via, diesel engine 29 can run well.For fear of diesel engine 29 fuel pumps 16 from independent lubricating system because of vegetable oil seepage in the pump housing, cause the lubrication system performance of fuel pump 16 to descend, lubrication system to fuel pump 16 is reequiped, draw one road lubricant oil from diesel lubrication oil main oil gallery mouth 21 and receive fuel pump 16 through the 7th oil pipe 22, directly fuel pump 16 is lubricated, lubricant oil flows back to diesel engine 29 oil sumps through the 8th oil pipe 23 then.
What describe in the above specification is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of model utility.