CN108661837A - Oil supply system - Google Patents
Oil supply system Download PDFInfo
- Publication number
- CN108661837A CN108661837A CN201710203540.3A CN201710203540A CN108661837A CN 108661837 A CN108661837 A CN 108661837A CN 201710203540 A CN201710203540 A CN 201710203540A CN 108661837 A CN108661837 A CN 108661837A
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel tank
- supply system
- heavy oil
- mix
- 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
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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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
Abstract
The present invention provides a kind of oil supply system, for fuel system test platform fuel feeding comprising main fuel tank, mix fuel tank, booster pump, heater and viscosimeter.Main fuel tank is used to store the simulation heavy oil used in fuel system test platform；Mix fuel tank is connected to by the first transfer pipeline with main fuel tank, will simulate oil transfer to mix fuel tank；The entrance of booster pump is connected to mix fuel tank, to pressurize to the simulation heavy oil from mix fuel tank；The entrance of heater and the outlet of booster pump, to the simulation heavy-oil heating after booster pump pressurization；The entrance of viscosimeter and the outlet of heater to detect the viscosity of the simulation heavy oil after being heated by heater, and adjust the heating amount of heater according to testing result, and the outlet of viscosimeter is connected to the oil inlet of the injection pump of fuel system test platform.Oil supply system according to the present invention can meet the needs of carrying out fuel feeding to fuel system test platform using simulation heavy oil.
Description
Technical field
Present invention relates generally to diesel fuel injection system technical fields, relate more specifically to a kind of fuel system experiment
The oil supply system of platform.
Background technology
Heavy oil be widely used in due to its price advantage in, low-speed marine diesel engine.Heavy oil due under room temperature viscosity it is big,
Poor fluidity generally requires and is previously heated to 70 DEG C or so and is conveyed；In order to ensure good jet atomization performance, generally need
90~120 DEG C are heated to be sprayed into diesel fuel injection system.It is commonly equipped with using the diesel engine of heavy oil a set of
Fuel system meets light, heavy oil requirement, and light, heavy oil switching device, the demand of reply engine actual use is arranged.Generally
It is started using light diesel fuel, when diesel engine is run to middle high load capacity, switches to heavy oil pattern；Before shutdown, light diesel fuel mould is switched to
Formula rinses remaining heavy oil in fuel system pipeline.
When fuel system test platform is tested, since fuel oil (light diesel fuel or heavy oil) is not involved in burning, if similar adopts
Switch heavy oil operation or heavy oil switching light diesel fuel operation with light diesel fuel, the mixing of light diesel fuel and heavy oil will certainly be caused, once it is mixed
It closes object and enters light diesel fuel fuel tank or heavy oil fuel tank, the pollution of platform test fuel tank oil product will necessarily be caused, influence successive stage examination
Test normal development.Therefore, platform test should not use two kinds of oil products to switch, then use simulation heavy oil oil product, simulation heavy oil into
Enter the temperature and viscosity when engine.However existing oil supply system is mostly for using light diesel fuel switching heavy oil operation or heavy oil
Switch the fuel system Testing Table Design of light diesel fuel operation, is not suitable for the fuel system test platform using simulation heavy oil
Oil supply system.
Therefore, it is necessary to a kind of oil supply systems for fuel system test platform, to solve the above problems at least partly.
Invention content
To solve the above problems at least partly, the present invention provides a kind of oil supply system, flat for testing fuel system
Platform fuel feeding comprising：
Main fuel tank, for storing the simulation heavy oil used in the fuel system test platform；
Mix fuel tank, the mix fuel tank are connected to by the first transfer pipeline with the main fuel tank, by simulation weight
Oil is delivered to the mix fuel tank；
Booster pump, the entrance of the booster pump are connected to the mix fuel tank, to the institute from the mix fuel tank
State simulation heavy oil pressurization；
Heater, the outlet of the entrance of the heater and the booster pump, to adding by the booster pump
The simulation heavy-oil heating after pressure；
Viscosimeter, the outlet of the entrance of the viscosimeter and the heater, to detect by the heater
The viscosity of the simulation heavy oil after heating, and the heating amount of the heater is adjusted according to testing result, the viscosimeter
Outlet be connected to the oil inlet of the injection pump of the fuel system test platform.
Optionally, the oil return opening of the injection pump is connected to the mix fuel tank by the first oil return line, will not had
It is recycled to the mix fuel tank by the simulation heavy oil of compressed action.
Optionally, the oil inlet of the injection pump is switchably connected to the oil return opening.
Optionally, further include the second oil return line, second oil return line makes the spray of the fuel system test platform
It is emitted back towards oily oil well pump to be connected to the main fuel tank, oil return cooler, low is provided on second oil return line with being sequentially connected in series
Position fuel tank and oil well pump, the main fuel tank is recycled to by the simulation heavy oil for passing through compressed action.
Optionally, the main fuel tank is also connected to by the first bypass line with the mix fuel tank, so that the mixing
When liquid level is excessively high in fuel tank, the extra simulation heavy oil enters the main fuel tank by first bypass line.
Optionally, the mix fuel tank is connected to the outlet of the booster pump by the second bypass line, by the of described second
Siphunculus road is provided with the second pressure regulator valve control charge oil pressure, and the extra simulation heavy oil is bypassed to the mix fuel tank.
Optionally, it is provided with supply pump on first transfer pipeline.
Optionally, the main fuel tank is connected to the outlet of the supply pump by third bypass line, the third bypass
It is provided with the first pressure regulator valve on pipeline, the extra simulation heavy oil is bypassed to the main fuel tank.
Optionally, the access between the main fuel tank and the supply pump is provided with coarse filter.
Optionally, the access between the heater and the viscosimeter is provided with fine filter.
Optionally, further include the differential pressure transmitter device alarmed for pressure difference, the differential pressure transmitter device is in parallel with the fine filter.
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.
Optionally, the main fuel tank has heating function, to the simulation heavy-oil heating.
Oil supply system according to the present invention can meet and carry out fuel feeding to fuel system test platform using simulation heavy oil
Demand.
Description of the drawings
Following drawings is used to understand the present invention in this as the part of the present invention.In attached drawing：
Fig. 1 is the viscosity-temperature characteristics curve graph of the simulation heavy oil used in oil supply system shown in the present invention；And
Fig. 2 is a kind of schematic diagram of the oil supply system of preferred embodiment shown in the present invention.
Reference numeral：
1：First transfer pipeline 2：First bypass line
3：Third bypass line 4：Second transfer pipeline
5：Second bypass line 6：First oil return line
7：Circulation line 8：Second oil return line
10：Main fuel tank 11：Supply pump
12：First pressure regulator valve 13：Coarse filter
20：Mix fuel tank 21：First booster pump
22：Second booster pump 23：Heater
24：Viscosimeter 25：First fine filter
26：Differential pressure transmitter device 27：Second pressure regulator valve
28：Second fine filter 30：Injection pump
31：Oil inlet 32：Oil return opening
40：Spray oil return oil well pump 41：Oil return cooler
42：Low level fuel tank 43：Oil well pump
50：Draw-off tray 51：Oil collection box
Specific implementation mode
In the following description, a large amount of concrete details are given in order to provide more thorough understanding of the 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 with the present invention obscure, for some technical characteristics well known in the art not into
Row description.
When being tested using fuel system test platform, if switched using light diesel fuel and heavy oil by actual conditions, by
In fuel system test platform unlike diesel engine has the process of work by combustion, so the mixed of light diesel fuel and heavy oil will necessarily be caused
It closes, so as to cause the pollution of oil product used in experiment.Therefore light diesel fuel and heavy oil is replaced to be tested using simulation heavy oil.
Simulation heavy oil is blent by base oil and additive to be reconciled, and is as shown in Figure 1 the viscosity-temperature characteristics of simulation heavy oil
Curve, it can be seen that at 20 DEG C, the kinematic viscosity for simulating heavy oil is that 60cSt simulates the kinematic viscosity of heavy oil at 120 DEG C
For 14 ± 2cSt.Simulation heavy oil can approximatively meet viscosity when heavy oil enters diesel engine at high operating temperatures in this way, simultaneously
It can guarantee the good mobility of low-temperature condition again, avoid system parts adhesion, obstruction, moreover it is possible to true heavy oil effectively be avoided to try
The problem of oil product occurred when testing is denaturalized and cannot really reflect real use state.
When being tested using simulation heavy oil, the oil supply system of fuel system test platform needs to redesign to meet
Simulate the use demand of heavy oil.
The present invention provides a kind of oil supply system, the fuel system test platform for being tested using simulation heavy oil.For
Oil system includes mainly：Main fuel tank, supply pump, mix fuel tank, booster pump, heater, viscosimeter, oil return cooler, low level oil
Case, oil well pump etc..
As shown in Fig. 2, simulation heavy-oil reservoir is there are in main fuel tank 10, main fuel tank 10 can have a heating function, in this way can be with
Simulation heavy oil is preheated to the temperature needed for fuel feeding, such as 70 DEG C before carrying out fuel feeding, so that the viscosity of simulation heavy oil meets
The demand of conveying.Preferably, main fuel tank 10 can have level displaying function, can be best understood from simulation in main fuel tank in this way
The liquid level of heavy oil.
It is connected to by the first transfer pipeline 1 between main fuel tank 10 and mix fuel tank 20, confession is provided on the first transfer pipeline 1
To pump 11, the simulation oil transfer preheated will be completed in main fuel tank 10 to mix fuel tank 20.Main fuel tank 10 and mix fuel tank 20
Between be also connected to by the first bypass line 2, the first bypass line 2 is connected at the high liquid level of mix fuel tank 20, in this way, mixed
When liquid level in conjunction fuel tank 20 is excessively high, extra simulation heavy oil can be bypassed into main fuel tank 10.Preferably, mix fuel tank 20
There can be high liquid level warning, can be reminded in the excessively high alarm of liquid level in mix fuel tank 20.
It is provided with third bypass line 3 between main fuel tank 10 and the outlet of supply pump 11, is arranged on third bypass line 3
There is charge oil pressure of first pressure regulator valve 12 between main fuel tank 10 and mix fuel tank 20 to be adjusted, it, can be with when hypertonia
Extra simulation heavy oil is bypassed into back main fuel tank 10 by third bypass line 3.It preferably, can be in main fuel tank 10 and supply pump
Coarse filter 13 is arranged on the first transfer pipeline 1 between 11 to be filtered simulation heavy oil.
Simulation heavy oil in mix fuel tank 20 is transported to fuel system test platform by the second transfer pipeline 4.
On two transfer pipelines 4, it is disposed in series booster pump, heater and viscosimeter etc., to simulating the property (such as viscosity) of heavy oil
It is monitored and adjusts.
Specifically, after simulation heavy oil outflow mix fuel tank 20, booster pump is first passed around, weight is simulated under the action of booster pump
Oil is pressurized to pressure needed for fuel system.As shown in Fig. 2, in the present embodiment, booster pump includes the first of parallel arrangement
Booster pump 21 and the second booster pump 22.The pressure regulation spectrum of simulation heavy oil and the flexibility of adjusting can be increased in this way.
Between the outlet and mix fuel tank 20 of booster pump, it is additionally provided with the second bypass line 5, second is provided on the second bypass line 5
The charge oil pressure after booster pump is adjusted in pressure regulator valve 27, when hypertonia, can pass through extra simulation heavy oil
Second bypass line 5 bypasses back mix fuel tank 20.
The outlet of booster pump is connect with heater 23, and the simulation heavy oil after being overpressurized is heated in heater 23
Temperature needed for fuel feeding.The outlet of heater 23 is connect with viscosimeter 24, and the outlet of viscosimeter 24 is connected to fuel system experiment
Platform, specifically, the outlet of viscosimeter 24 are connect with the oil inlet 31 of the injection pump 30 of fuel system test platform.It passes through as a result,
It is overpressurized the simulation heavy oil after heating and is delivered to fuel system test platform after by viscosity measurements.Simulate the viscous of heavy oil
Degree detection is completed by viscosimeter 24, to ensure that viscosity of the simulation heavy oil before entering fuel system test platform meets fuel feeding need
It asks.It is correspondingly related to the heating amount of heater 23 since the viscosity of simulation heavy oil is related to temperature, therefore, 24, viscosimeter
According to the comparison of the actual viscosity measured and predetermined value of simulation heavy oil, the heating amount of heater 23 is controlled, so that simulation heavy oil is reaching
Viscosity before fuel system test platform reaches predetermined value.
Preferably, the first fine filter 25 can be disposed in series between heater 23 and viscosimeter 24, to simulating heavy oil
It further filters, can also differential pressure transmitter device 26 be set in parallel with the first fine filter 25, the first fine filter 25 is imported and exported
Pressure be detected, and alarm when over pressure, ensure system blocking-resistant safety.It is further preferred that being respectively set and adding
The bypass line of 24 parallel connection of hot device 23, the first fine filter 25 and viscosimeter, can be when some element blocks or damages still
The unimpeded of oil supply system is kept, improves the flexibility of oil supply system, and maintain easily.
Simulation heavy oil into injection pump 30 is not all of for compressed action, and the simulation heavy oil of some ratio is used for
Injection pump 30 is cooled down, this partial simulation heavy oil is finally flowed out by the oil return opening 32 of injection pump 30, therefore, design spray
The oil return opening 32 of oil pump 30 is connected to mix fuel tank 20 by the first oil return line 6, will be without the simulation weight of compressed action
Oil in mix fuel tank 20 back to recycling.Preferably, the second fine filter 28 can be set on the first oil return line 6, with
The simulation heavy oil of this part is filtered.
When oil supply system is just run, setting is much not achieved in the temperature and viscosity of the simulation heavy oil of the outlet of viscosimeter 24
Value, therefore, will be switchably connected between the oil inlet 31 and oil return opening 32 of injection pump 30 by circulation line 7.In fuel feeding system
When system is just opened, circulation line 7 is opened.In this way, not up to for the simulation heavy oil of oil standard after flowing out viscosimeter 24, warp
It crosses circulation line 7 and the first oil return line 6 returns to mix fuel tank 20, form a cycle, simulation heavy oil can persistently be added
Heat, until viscosimeter 24 detects that the viscosity of simulation heavy oil reaches the setting value of fuel feeding demand.At this point, can circulation line 7, open
30 fuel feeding of injection pump to begin to fuel system test platform.
Since combustion process is not present in simulation heavy oil in fuel system test platform, it is flat in fuel system experiment
It needs to carry out being recycled to main fuel tank 10 by the second oil return line 8 by the simulation heavy oil of compressed action in platform.It is done through overcompression
The simulation heavy oil of work(is flowed out from the injection oil return oil well pump 40 of fuel system test platform.Simulate heavy oil by compressed action it
There is very high temperature afterwards, to avoid generating thermal shock to oil supply system and each element, the outlet of injection oil return oil well pump 40 connects
It is connected to oil return cooler 41, oil return cooler 41 carries out cooling down to the simulation heavy oil of this part.Oil return cooler 41 goes out
Mouth is connected to low level fuel tank 42, and low level fuel tank 42 is connected to main fuel tank 10 by oil well pump 43.In this way, the mould after compressed action
Quasi- heavy oil, by cooling down, passes through low level fuel tank 42 and oil well pump 43 enters main fuel tank 10 later in oil return cooler 41.Its
In, low level fuel tank 42 works as a buffer the second oil return line 8.Oil well pump 43 then provides power to the oil return for simulating heavy oil.Also
It is provided with the bypass line in parallel with oil return cooler 41, the can be still kept when oil return cooler 41 blocks or damages
Two oil return lines 8 it is unimpeded, improve the flexibility of oil supply system, and maintain easily.
Preferably, the entrance of the oil well pump 43 on the second oil return line 8 can also respectively with mix fuel tank 20, heater 23
And the outlet of viscosimeter 24, increase the bypass line of simulation heavy oil, to increase the flexibility of oil supply system adjusting control.
To avoid simulation heavy oil leakage from polluting the installation environment of oil supply system, it is provided with below oil supply system
Draw-off tray 50, the simulation heavy oil revealed oil supply system or oozed out are collected.And it is set below 50 minimum point of draw-off tray
Oil collection box 51 is set, the simulation heavy oil that draw-off tray 50 is collected is put together, periodical blowdown.
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 device furthers such as sensor or temperature sensor etc., oil supply system to be preferably monitored and controlled.
Oil supply system according to the present invention can meet the confession of the fuel system test platform using simulation heavy oil well
Oily demand.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, and be not intended to limit the invention within the scope of described embodiment.Those skilled in the art can
With understanding, introduction according to the present invention can also make more kinds of variants and modifications, these variants and modifications are all fallen within
Within scope of the present invention.Protection scope of the present invention is by the appended claims and its equivalent scope institute circle
It is fixed.
Claims (13)
1. a kind of oil supply system, for fuel system test platform fuel feeding, which is characterized in that including：
Main fuel tank, for storing the simulation heavy oil used in the fuel system test platform；
Mix fuel tank, the mix fuel tank are connected to by the first transfer pipeline with the main fuel tank, and the simulation heavy oil is defeated
It send to the mix fuel tank；
Booster pump, the entrance of the booster pump are connected to the mix fuel tank, to the mould from the mix fuel tank
Quasi- heavy oil pressurization；
Heater, the outlet of the entrance of the heater and the booster pump, to pressurizeing it by the booster pump
The simulation heavy-oil heating afterwards；
Viscosimeter, the outlet of the entrance of the viscosimeter and the heater heat to detect by the heater
The viscosity of the simulation heavy oil later, and the heating amount of the heater is adjusted according to testing result, the viscosimeter goes out
Mouth is connected to the oil inlet of the injection pump of the fuel system test platform.
2. oil supply system according to claim 1, which is characterized in that the oil return opening of the injection pump and the mix fuel tank
It is connected to by the first oil return line, it will be without being recycled to the mix fuel tank by the simulation heavy oil of compressed action.
3. oil supply system according to claim 2, which is characterized in that the oil inlet of the injection pump and the oil return
Mouth is switchably connected to.
4. oil supply system according to claim 1, which is characterized in that further include the second oil return line, second oil return
Pipeline makes the injection oil return oil well pump of the fuel system test platform be connected to the main fuel tank, on second oil return line
It is provided with oil return cooler, low level fuel tank and oil well pump with being sequentially connected in series, the simulation heavy oil that will pass through compressed action returns
It receives to the main fuel tank.
5. oil supply system according to claim 1, which is characterized in that the main fuel tank and the mix fuel tank also pass through
Bypass conduit is connected to, so that when liquid level is excessively high in the mix fuel tank, the extra simulation heavy oil passes through described first
Bypass line enters the main fuel tank.
6. oil supply system according to claim 1, which is characterized in that the outlet of the mix fuel tank and the booster pump is logical
The connection of the second bypass line is crossed, second bypass line is provided with the second pressure regulator valve control charge oil pressure, described in extra
Simulation heavy oil is bypassed to the mix fuel tank.
7. oil supply system according to claim 1, which is characterized in that be provided with supply pump on first transfer pipeline.
8. oil supply system according to claim 7, which is characterized in that the main fuel tank and the outlet of the supply pump pass through
Third bypass line is connected to, and the first pressure regulator valve is provided on the third bypass line, and the extra simulation heavy oil is bypassed
To the main fuel tank.
9. oil supply system according to claim 7, which is characterized in that logical between the main fuel tank and the supply pump
Road is provided with coarse filter.
10. oil supply system according to claim 1, which is characterized in that between the heater and the viscosimeter
Access is provided with fine filter.
11. oil supply system according to claim 10, which is characterized in that further include the differential pressure signaling alarmed for pressure difference
Device, the differential pressure transmitter device are in parallel with the fine filter.
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. oil supply system according to claim 1, which is characterized in that the main fuel tank has heating function, to institute
State simulation heavy-oil heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203540.3A CN108661837A (en) | 2017-03-30 | 2017-03-30 | Oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203540.3A CN108661837A (en) | 2017-03-30 | 2017-03-30 | Oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661837A true CN108661837A (en) | 2018-10-16 |
Family
ID=63786448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203540.3A Pending CN108661837A (en) | 2017-03-30 | 2017-03-30 | Oil supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108661837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049253A (en) * | 2019-12-10 | 2021-06-29 | 中国航发商用航空发动机有限责任公司 | Nozzle simulation device and fuel system experiment platform |
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| CN1072241A (en) * | 1991-11-09 | 1993-05-19 | 沪东造船厂 | A kind of converter for light and heavy oils |
| DE19618869A1 (en) * | 1996-05-10 | 1997-11-13 | Daimler Benz Ag | Leak detection method for fuel injection system of motor vehicle |
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| CN206722949U (en) * | 2017-03-30 | 2017-12-08 | 中国船舶重工集团公司第七一一研究所 | Oil supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5865962A (en) * | 1981-10-15 | 1983-04-19 | Kazumi Yamamoto | Constant-viscosity fuel oil feeding apparatus |
| JPS5937239A (en) * | 1982-08-26 | 1984-02-29 | Ishikawajima Harima Heavy Ind Co Ltd | Fuel oil switching apparatus for diesel engine |
| CN1072241A (en) * | 1991-11-09 | 1993-05-19 | 沪东造船厂 | A kind of converter for light and heavy oils |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049253A (en) * | 2019-12-10 | 2021-06-29 | 中国航发商用航空发动机有限责任公司 | Nozzle simulation device and fuel system experiment platform |
| CN113049253B (en) * | 2019-12-10 | 2023-08-04 | 中国航发商用航空发动机有限责任公司 | Nozzle simulation device and fuel system experiment platform |
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