CN109958562A - Oil supply system and fuel supply method - Google Patents
Oil supply system and fuel supply method Download PDFInfo
- Publication number
- CN109958562A CN109958562A CN201711433155.4A CN201711433155A CN109958562A CN 109958562 A CN109958562 A CN 109958562A CN 201711433155 A CN201711433155 A CN 201711433155A CN 109958562 A CN109958562 A CN 109958562A
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- Prior art keywords
- oil
- fuel
- low sulfur
- fuel oil
- supply system
- Prior art date
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- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000295 fuel oil Substances 0.000 claims abstract description 161
- 239000003921 oil Substances 0.000 claims abstract description 155
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 119
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 117
- 239000011593 sulfur Substances 0.000 claims abstract description 117
- 239000002828 fuel tank Substances 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000010729 system oil Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 7
- 239000005864 Sulphur Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002283 diesel fuel Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- -1 booster pump Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005507 spraying Methods 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention provides a kind of oil supply system and fuel supply method for fuel injection system test platform conveying Low Sulfur Fuel Oil.Oil supply system includes the fuel tank, booster pump and Fuel Oil Cooler being sequentially in fluid communication.Fuel tank is for storing Low Sulfur Fuel Oil；Booster pump is used to pressurize to Low Sulfur Fuel Oil；Fuel Oil Cooler is for the Low Sulfur Fuel Oil cooling by booster pump pressurization, the outlet of Fuel Oil Cooler and the oil inlet of high-pressure oil pump to be in fluid communication.Oil supply system according to the present invention and fuel supply method, for the property of Low Sulfur Fuel Oil, it is handled during transportation, every characteristic of Low Sulfur Fuel Oil is made to meet the needs of fuel injection system test platform is to fuel oil quality, carries out experimental exploration so as to the spray characteristic to Low Sulfur Fuel Oil.
Description
Technical field
Present invention relates generally to diesel fuel injection system technical field, relate more specifically to a kind of oil supply system and confession
Oily method.
Background technique
In order to control the sulphur pollution in atmosphere, from 2015, it must not use sulfur content that must not surpass in emission control area
Cross the fuel oil of 0.1%m/m.And from the year two thousand twenty, in the world, the sulfur content of fuel oil will be controlled in 0.5%m/m or less.
" ship uses Low Sulfur Fuel Oil guide " issued July according to CCS2013, sulfur content is no more than 0.1%m/m, and other are each
Item index meets distillate as defined in ISO8217:2010 standard and is known as Low Sulfur Fuel Oil (LSFO, Low Sulphur Fuel
Oil)。
Low Sulfur Fuel Oil has the characteristics that viscosity is low, density is low, flash-point is low, poor lubricity.Too low viscosity will lead to fuel oil
Leakage rate in fuel injection system increases, and causes the small oil mass difficulty in starting of heat engine.The density of fuel oil is low, can make to supply diesel oil
The fuel mass flow of machine reduces, and diesel engine is caused can not send out total power.Flash-point is low, will increase Low Sulfur Fuel Oil in use process
In security risk.In addition, the sulphur content in fuel oil has lubricating action, Low Sulfur Fuel Oil sulfur content is very low, causes greasy property poor.
It is unable to satisfy the pumping viscosity requirement of high-pressure oil pump and low-pressure delivery pump, causes the abrasion of precise motion couple and stuck.
Current fuel injection system platform experimental rig generallys use school pump oil instead of ordinary diesel oil, and spray characteristic is also needle
School pump oil is carried out, the spray characteristic of Low Sulfur Fuel Oil is still not clear, and the spray characteristic of Low Sulfur Fuel Oil will directly affect
The performance and emissions characteristics of diesel engine.
Therefore, it is necessary to a kind of oil supply system and fuel supply methods, at least partly to solve the above problems.
Summary of the invention
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into
One step is described in detail.Summary of the invention is not meant to attempt to limit technical solution claimed
Key feature and essential features do not mean that the protection scope for attempting to determine technical solution claimed more.
At least to be partially solved the above problem, the present invention provides a kind of oil supply system, for trying to fuel injection system
Platform conveying Low Sulfur Fuel Oil is tested, the oil supply system includes:
Fuel tank, the fuel tank is for storing to be supplied to the Low Sulfur Fuel Oil of the fuel injection system test platform；
Booster pump, the entrance of the booster pump and the fuel tank are in fluid communication, to from the described low of the fuel tank
The pressurization of sulphur fuel oil；And
Fuel Oil Cooler, the communication of the entrance of the Fuel Oil Cooler and the booster pump, will pass through
Low Sulfur Fuel Oil cooling after the booster pump pressurization, the outlet of the Fuel Oil Cooler and the fuel injection system try
The oil inlet for testing the high-pressure oil pump of platform is in fluid communication.
Optionally, the oil supply system further includes viscosimeter, the viscosimeter be set to the Fuel Oil Cooler with it is described
On fluid passage between oil inlet, the viscosimeter is to detect the low-sulfur after Fuel Oil Cooler cooling
The viscosity of fuel oil, the Fuel Oil Cooler are set as controlling the cooling of the Low Sulfur Fuel Oil according to the testing result of the viscosimeter
Degree.
Optionally, also pass through bypass pipe between the outlet and the oil inlet of the high-pressure oil pump of the Fuel Oil Cooler
Road is switchably connected to, and the bypass line is arranged in parallel with the viscosimeter.
Optionally, the fuel tank is provided with heating device.
Optionally, the oil supply system further includes the first oil return line, first oil return line respectively with the high pressure
The entrance of the oil return opening of oil pump and the booster pump is in fluid communication.
Optionally, the oil supply system further includes the second oil return line, second oil return line respectively with the high pressure
The injector oil return opening of oil pump and the fuel tank are in fluid communication, and are provided with oil return cooler on second oil return line.
Optionally, it is in fluid communication between the outlet of the booster pump and the fuel tank by pressure-regulating valve.
Optionally, coarse filter is provided on the fluid passage between the fuel tank and the entrance of the booster pump.
Optionally, fine filter is provided on the fluid passage between the outlet and the Fuel Oil Cooler of the booster pump.
Optionally, the entrance and exit of at least one in the booster pump, the Fuel Oil Cooler and the viscosimeter point
It is not connected to switchably with fluid passage.
Optionally, it is in fluid communication between each component of the oil supply system by oil feed line, the oil feed line uses
Heat insulation bundling processing.
Optionally, the bottom of the oil supply system is provided with draw-off tray, and the low spot of the draw-off tray is provided with oil collection box.
According to another aspect of the present invention, it also provides a kind of to fuel injection system test platform conveying Low Sulfur Fuel Oil
Fuel supply method, the fuel supply method the following steps are included:
S1: it pressurizes to the Low Sulfur Fuel Oil, to improve the mass flow of the Low Sulfur Fuel Oil；
S2: the Low Sulfur Fuel Oil after pressurization is cooled down, to improve the viscosity of the Low Sulfur Fuel Oil；
S3: the Low Sulfur Fuel Oil after cooling is delivered to the high-pressure oil pump of the fuel injection system test platform.
Optionally, the fuel supply method is before step S1 further include: the temperature for detecting the Low Sulfur Fuel Oil, when described low
When the temperature of sulphur fuel oil is lower than predetermined temperature, the Low Sulfur Fuel Oil is heated.
Optionally, the predetermined temperature is 15 DEG C.
Optionally, the fuel supply method is upon step s 2 further include: the Low Sulfur Fuel Oil after detecting the cooling
Viscosity number, and control according to the viscosity number cooling degree of the Low Sulfur Fuel Oil.
Oil supply system according to the present invention and fuel supply method, for the property of Low Sulfur Fuel Oil, during transportation to its into
Row processing, makes every characteristic of Low Sulfur Fuel Oil meet the needs of fuel injection system test platform is to fuel oil quality, so as to
Experimental exploration is carried out to the spray characteristic of Low Sulfur Fuel Oil.
Detailed description of the invention
The following drawings of embodiment of the present invention is incorporated herein as part of the present invention for the purpose of understanding the present invention.Show in attached drawing
Embodiments of the present invention and its description, principle used to explain the present invention are gone out.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of the oil supply system of preferred embodiment according to the present invention.
Appended drawing reference:
10: fuel tank 11: heating device
12: booster pump 13: pressure-regulating valve
14: coarse filter 15: Fuel Oil Cooler
16: fine filter 17: viscosimeter
18: oil inlet 19: bypass line
20: the first oil return lines 21: high-pressure oil pump oil return opening
22: the second oil return lines 23: injector oil return opening
24: oil return cooler 25: draw-off tray
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it will be apparent to one skilled in the art that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
Applied to the fuel oil of diesel engine, needs to be tested by fuel injection system test platform, determine it in fuel oil
Circulating fuel injection quantity, fuel injection rate, the injection characterisitic parameters such as pressure and oil injection duration in spraying system, so as to preferably
Work by combustion process of the fuel oil in diesel engine is controlled.Low Sulfur Fuel Oil is with viscosity is low, density is low, flash-point is low, lubrication
Property difference feature.It before Low Sulfur Fuel Oil is delivered to fuel injection system test platform, needs to handle it, to meet
Requirement of the diesel engine to fuel quality.
The present invention provides a kind of oil supply system, for simultaneously right simultaneously to fuel injection system test platform conveying Low Sulfur Fuel Oil
Low Sulfur Fuel Oil is handled.Oil supply system specifically includes that fuel tank, booster pump, Fuel Oil Cooler and viscosimeter, leads between each component
Cross oil feed line fluid communication.It is discussed in detail with reference to the accompanying drawing.
As shown in Figure 1, the Low Sulfur Fuel Oil to be supplied to fuel injection system test platform is stored in fuel tank 10.Fuel tank 10
In be provided with heating device 11., can be according to the temperature and viscosity characteristics curve of Low Sulfur Fuel Oil before fuel feeding, it will be in fuel tank 10
Low Sulfur Fuel Oil be heated to predetermined temperature.Preferably the viscosity of Low Sulfur Fuel Oil can be controlled in this way.For example, the predetermined temperature
Degree can be 15 DEG C.Certainly, it in the case where room temperature is more than or equal to 15 DEG C, does not need to heat Low Sulfur Fuel Oil, at this time may be used
To be selectively gated off heating device 11.Preferably, fuel tank 10 can also have level displaying function, can pass through liquid level in this way
Understand the amount of the Low Sulfur Fuel Oil in fuel tank 10.
The downstream of fuel tank 10 is provided with booster pump 12, is in fluid communication by oil feed line therebetween.From fuel tank 10
Low Sulfur Fuel Oil scheduled pressure is pressurized at the position of booster pump 12.It is pressurizeed by booster pump 12 to Low Sulfur Fuel Oil, it can
To improve mass flow of the Low Sulfur Fuel Oil in conveying, it is made to meet the needs of diesel engine.It thus can be to avoid due to low-sulfur
Supply mass flow caused by the lower characteristic of fuel oil autologous density reduces, so as to solve diesel engine due to producing for shortage of oil
Raw hair does not go out the problem of total power.
Preferably, as shown in Figure 1, oil supply system includes two booster pumps 12, it can be promoted in this way and Low Sulfur Fuel Oil is pressurized
The upper limit, increase adjustable range, so as to adapt to the Fuel Injection Mechanism of Diesel Engine to different model or meet diesel engine not
With fuel delivery needed for power.Preferably, two booster pumps 12 are arranged in parallel, it is possible thereby to according to required degree of boost
Height selectively starts one or two booster pump 12.Preferably, between the outlet of fuel tank 10 and the entrance of booster pump 12
Oil feed line on be provided with coarse filter 14, with to from fuel tank 10 Low Sulfur Fuel Oil carry out primary filtration.
The outlet of booster pump 12 is in fluid communication by pressure-regulating valve 13 and fuel tank 10.Pressure-regulating valve 13 is specifically as follows
Play overflow overflow valve etc., is configured to be greater than in advance when the pressure (namely the pressure in the exit of booster pump 12) of inlet
It is automatically turned on when fixed pressure value.For example, the scheduled pressure value can be corresponding to mass flow needed for meeting diesel engine
Low Sulfur Fuel Oil pressure.When booster pump 12 is pressurized to more than scheduled pressure value, the quality stream of Low Sulfur Fuel Oil Low Sulfur Fuel Oil
Amount is more than mass flow needed for diesel engine, and pressure-regulating valve 13 is automatically opened at this time, and extra Low Sulfur Fuel Oil passes through pressure
Regulating valve 13 is back in fuel tank 10.Thus, it is possible to which it is undesirable to avoid the mass flow of Low Sulfur Fuel Oil in oil supply system from generating
Fluctuation.
The outlet of booster pump 12 is also in fluid communication with Fuel Oil Cooler 15.Low Sulfur Fuel Oil itself has lower viscosity, no
Meet requirement of the diesel engine to viscosity.After pressurizeing by booster pump 12, the temperature of Low Sulfur Fuel Oil is increased, correspondingly its viscosity into
One step reduces.Therefore, it is necessary to the Low Sulfur Fuel Oil after pressurization is pumped into Fuel Oil Cooler 15 to carry out cooling processing.Pass through drop
The viscosity of Low Sulfur Fuel Oil can be improved in temperature.Preferably, the confession between the outlet of booster pump 12 and the entrance of Fuel Oil Cooler 15
It is provided with fine filter 16 on oil pipe line, Low Sulfur Fuel Oil is further filtered, promotes purity.
The outlet of Fuel Oil Cooler 15 and viscosimeter 17 are in fluid communication.17 pairs of viscosimeter by 15 cooling of Fuel Oil Cooler
The viscosity number of Low Sulfur Fuel Oil afterwards measures, and the requirement standard with diesel engine to fuel-viscosity variation is compared.Fuel oil is cooling
Device 15 controls the cooling degree of Low Sulfur Fuel Oil therethrough according to the measurement result of viscosimeter 17.When measuring for viscosimeter 17 is viscous
When the standard of fuel-viscosity variation needed for angle value is lower than diesel engine, Fuel Oil Cooler 15 then increases the cooling of Low Sulfur Fuel Oil therethrough
Amplitude, promote the temperature of Low Sulfur Fuel Oil further.The combustion needed for the viscosity number of viscosimeter 17 measured is higher than diesel engine
When the standard of oil viscosity, Fuel Oil Cooler 15 then reduces the amplitude of the cooling of Low Sulfur Fuel Oil therethrough.The outlet of viscosimeter 17
It is in fluid communication with the oil inlet 18 of the high-pressure oil pump of fuel injection system test platform.Low Sulfur Fuel Oil is after high-pressure oil pump pressurizes
It is transported to fuel injection system test platform and carries out spray characteristic test.
Preferably, the oil inlet 18 of the outlet of Fuel Oil Cooler 15 and high-pressure oil pump is switchably flowed by bypass line 19
Body connection.Bypass line 19 is arranged in parallel with viscosimeter 17.Usually, bypass line 19 is in close state.When viscosimeter 17 is sent out
When raw failure or obstruction, bypass line 19 is opened, and the Low Sulfur Fuel Oil flowed out from Fuel Oil Cooler 15 enters by bypass line 19
The oil inlet 18 of high-pressure oil pump.It can be to avoid viscosimeter 17 breaks down and influences to convey to fuel injection system test platform low
Sulphur fuel oil.Wherein, the valve member realization that shut-off valve, ball valve etc. can be set on bypass line 19 is switchably connected to.
It is delivered to the Low Sulfur Fuel Oil of high-pressure oil pump, wherein about 1/3 part enters diesel oil after high-pressure oil pump pressurizes
Machine burning, remaining 2/3 Low Sulfur Fuel Oil is for cooling to high-pressure oil pump.Preferably, oil supply system is additionally provided with first
Oil return line 20.The arrival end of first oil return line 20 is connected to high-pressure oil pump oil return opening 21, so as to high-pressure oil pump
Oil return is recycled, and realization recycles, and avoids wasting.The Low Sulfur Fuel Oil recycled by the first oil return line 20 is used for to height
Pressure oil pump cools, and temperature is higher, does not need to be heated by fuel tank 10 again.Therefore, the outlet of the first oil return line 20
End can directly be in fluid communication with the entrance of booster pump 12.It is followed that is, this part oil return can be directly entered oil supply system
Ring uses, without doing other processing again.Since this part oil return has already passed through coarse filter 14 before entering high-pressure oil pump
It is filtered twice with fine filter 16, therefore, the outlet end of the first oil return line 20 can be located at the downstream of coarse filter 14, without again
It is filtered by coarse filter 14, so as to reduce the local pressure loss of this part Low Sulfur Fuel Oil, plays energy-efficient effect.
In addition, during high-pressure oil pump passes through injector oil spout into diesel engine, since pressure is higher, one can be generated
It reveals part.This part Low Sulfur Fuel Oil recycles, referred to as injector oil return.Preferably, oil supply system is additionally provided with second time
Oil pipe line 22.The arrival end of second oil return line 22 is connected to the injector oil return opening 23 of high-pressure oil pump, to letting out in course of injection
The Low Sulfur Fuel Oil of dew is recycled.This part Low Sulfur Fuel Oil pressurizes by high-pressure oil pump, and temperature is very high, after needing to handle
Oil supply system can be entered to recycle.Therefore, it is provided with oil return cooler 24 on the second oil return line 22, the injector of high temperature is returned
Oil carries out cooling down processing.The outlet end (namely outlet end of oil return cooler 24) of second oil return line 22 and fuel tank 10 flow
Body connection.Oil return after 24 cooling down of oil return cooler enters in fuel tank 10, reenters oil supply system circulation.
The viscosity of Low Sulfur Fuel Oil is acted upon by temperature changes larger.Therefore, in order to reduce the influence of external environment, preferably
The oil feed line on ground, oil supply system is handled using heat insulation bundling, minimizes the Low Sulfur Fuel Oil and external environment in oil feed line
Between heat exchange.
On the other hand, for avoid the Low Sulfur Fuel Oil in oil supply system each components and components and pipeline installation stitch
The leakage of the positions such as gap causes environmental pollution, and draw-off tray 25 is provided with below oil supply system, reveals oil supply system or seeps
Low Sulfur Fuel Oil out is collected.And oil collection box (not shown) is set in the lower section of the minimum point of draw-off tray 25, pass through oil collection box
The Low Sulfur Fuel Oil that draw-off tray 25 is collected is put together, periodical blowdown.
In addition, in order to keep oil supply system easy to maintain, by entering for such as booster pump 12, Fuel Oil Cooler 15 and viscosimeter 17
It is set as switchably being connected between mouth and outlet and oil feed line.For example, can be cut before the inlet with setting after outlet
The only valve members such as valve, ball valve.In this way, oil feed line can be closed, when components break down so as to easily
The components of damage are unloaded into maintenance or replacement.
The main composition of oil supply system according to the present invention is described above, still, those skilled in the art can
To understand, in the needed position of oil supply system, such as check valve, spherical valve equal controller and such as pressure can also be set
Sensing devices such as sensor or temperature sensor etc., oil supply system to be preferably monitored and controlled.
According to another aspect of the present invention, it also discloses a kind of flat to fuel injection system test based on above-mentioned oil supply system
The fuel supply method of platform conveying Low Sulfur Fuel Oil.
Fuel supply method includes the following steps:
S1: it pressurizes to Low Sulfur Fuel Oil, to improve the mass flow of Low Sulfur Fuel Oil；
S2: the Low Sulfur Fuel Oil after pressurization is cooled down, to improve the viscosity of Low Sulfur Fuel Oil；
S3: the Low Sulfur Fuel Oil after cooling is delivered to the high-pressure oil pump of fuel injection system test platform.
Wherein, before step S1, it is preferable that the temperature of Low Sulfur Fuel Oil can be detected in advance.When the temperature of Low Sulfur Fuel Oil
When lower than predetermined temperature, Low Sulfur Fuel Oil is heated, so that control preferably be adjusted to the viscosity of Low Sulfur Fuel Oil.For example, should
Predetermined temperature can be 15 DEG C.
Upon step s 2, it is preferable that can detecte cooling after Low Sulfur Fuel Oil viscosity number, and with needed for diesel engine
The normal viscosity value of fuel oil compare, the cooling degree of Low Sulfur Fuel Oil is controlled according to comparison result.If the low-sulfur combustion after cooling
The viscosity number of oil is lower than normal viscosity value, then increases the amplitude to the Low Sulfur Fuel Oil cooling down after pressurization；If after cooling
The viscosity number of Low Sulfur Fuel Oil is higher than normal viscosity value, then reduces the amplitude to the Low Sulfur Fuel Oil cooling down after pressurization.
Oil supply system according to the present invention and fuel supply method, for the property of Low Sulfur Fuel Oil, during transportation to its into
Row processing, makes every characteristic of Low Sulfur Fuel Oil meet the needs of fuel injection system test platform is to fuel oil quality, so as to
Experimental exploration is carried out to the spray characteristic of Low Sulfur Fuel Oil.
Unless otherwise defined, technical and scientific term used herein and those skilled in the art of the invention
Normally understood meaning is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limitation is originally
Invention.Terms such as herein presented " settings " can both indicate that a component was attached directly to another component, can also
To indicate that a component is attached to another component by middleware.The feature that describes in one embodiment can be with herein
Individually or with other feature be applied to another embodiment in combination, unless this feature in the another embodiment not
It is applicable in or is otherwise noted.
The present invention is illustrated by above embodiment, but it is to be understood that, above embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Art technology
Personnel are it is understood that introduction according to the present invention can also make more kinds of variants and modifications, these variants and modifications
All fall within the scope of the claimed invention.
Claims (16)
1. a kind of oil supply system, for conveying Low Sulfur Fuel Oil to fuel injection system test platform, which is characterized in that the fuel feeding
System includes:
Fuel tank, the fuel tank is for storing to be supplied to the Low Sulfur Fuel Oil of the fuel injection system test platform；
Booster pump, the entrance of the booster pump and the fuel tank are in fluid communication, to fire to the low-sulfur from the fuel tank
Oil pressurization；And
Fuel Oil Cooler, the communication of the entrance of the Fuel Oil Cooler and the booster pump are described will pass through
Low Sulfur Fuel Oil cooling after booster pump pressurization, the outlet of the Fuel Oil Cooler and fuel injection system test are flat
The oil inlet of the high-pressure oil pump of platform is in fluid communication.
2. oil supply system according to claim 1, which is characterized in that the oil supply system further includes viscosimeter, described viscous
Degree meter is set on the fluid passage between the Fuel Oil Cooler and the oil inlet, and the viscosimeter is to detect by institute
The viscosity of the Low Sulfur Fuel Oil after Fuel Oil Cooler cooling is stated, the Fuel Oil Cooler is set as according to the viscosimeter
Testing result controls the cooling degree of the Low Sulfur Fuel Oil.
3. oil supply system according to claim 2, which is characterized in that the outlet of the Fuel Oil Cooler and the high pressure oil
It is also switchably connected to by bypass line between the oil inlet of pump, the bypass line is in parallel with the viscosimeter to be set
It sets.
4. oil supply system according to claim 1, which is characterized in that the fuel tank is provided with heating device.
5. oil supply system according to claim 1, which is characterized in that the oil supply system further includes the first oil return line,
First oil return line is in fluid communication with the entrance of the oil return opening of the high-pressure oil pump and the booster pump respectively.
6. oil supply system according to claim 1, which is characterized in that the oil supply system further includes the second oil return line,
Second oil return line is in fluid communication with the injector oil return opening of the high-pressure oil pump and the fuel tank respectively, and described second time
Oil return cooler is provided on oil pipe line.
7. oil supply system according to claim 1, which is characterized in that lead between the outlet of the booster pump and the fuel tank
Over-voltage force regulating valve is in fluid communication.
8. oil supply system according to claim 1, which is characterized in that between the fuel tank and the entrance of the booster pump
Coarse filter is provided on fluid passage.
9. oil supply system according to claim 1, which is characterized in that the outlet of the booster pump and the Fuel Oil Cooler
Between fluid passage on be provided with fine filter.
10. oil supply system according to claim 2, which is characterized in that the booster pump, the Fuel Oil Cooler and described
The entrance and exit of at least one in viscosimeter is switchably connected to fluid passage respectively.
11. oil supply system according to claim 1, which is characterized in that pass through confession between each component of the oil supply system
Oil pipe line is in fluid communication, and the oil feed line is handled using heat insulation bundling.
12. oil supply system according to claim 1, which is characterized in that the bottom of the oil supply system is provided with draw-off tray,
The low spot of the draw-off tray is provided with oil collection box.
13. a kind of fuel supply method to fuel injection system test platform conveying Low Sulfur Fuel Oil, which is characterized in that the fuel feeding side
Method the following steps are included:
S1: it pressurizes to the Low Sulfur Fuel Oil, to improve the mass flow of the Low Sulfur Fuel Oil；
S2: the Low Sulfur Fuel Oil after pressurization is cooled down, to improve the viscosity of the Low Sulfur Fuel Oil；
S3: the Low Sulfur Fuel Oil after cooling is delivered to the high-pressure oil pump of the fuel injection system test platform.
14. fuel supply method according to claim 13, which is characterized in that the fuel supply method also wraps before step S1
It includes:
The temperature for detecting the Low Sulfur Fuel Oil, when the temperature of the Low Sulfur Fuel Oil is lower than predetermined temperature, to the Low Sulfur Fuel Oil
Heating.
15. fuel supply method according to claim 14, which is characterized in that the predetermined temperature is 15 DEG C.
16. fuel supply method according to claim 13, which is characterized in that the fuel supply method also wraps upon step s 2
It includes:
The viscosity number of the Low Sulfur Fuel Oil after detecting the cooling, and control according to the viscosity number drop of the Low Sulfur Fuel Oil
Warm degree.
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