CN108120601A - A kind of alcohol consumes instrument fuel-flow control system - Google Patents
A kind of alcohol consumes instrument fuel-flow control system Download PDFInfo
- Publication number
- CN108120601A CN108120601A CN201711383399.6A CN201711383399A CN108120601A CN 108120601 A CN108120601 A CN 108120601A CN 201711383399 A CN201711383399 A CN 201711383399A CN 108120601 A CN108120601 A CN 108120601A
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- China
- Prior art keywords
- methanol
- fuel
- pressure sensor
- lubricating cup
- cup
- 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.)
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Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 261
- 239000000446 fuel Substances 0.000 claims abstract description 57
- 230000001050 lubricating effect Effects 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 23
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention belongs to engine performance measuring apparatus fields, and disclose a kind of alcohol consumption instrument fuel-flow control system, including measurement lubricating cup, methanol fuel pump, weighing sensor, Switching Power Supply, switch power controller, the first methanol pressure sensor, the second methanol pressure sensor, safety valve, overflow pipe and overflow cup, measure and be provided with fuel inlet and fuel outlet on lubricating cup；Weighing sensor is mounted on measurement lubricating cup；The input terminal connection accumulator of Switching Power Supply and its output terminal are connected on methanol fuel pump；Overflow pipe and the first methanol pressure sensor are separately mounted on main pipeline；The switch power controller connects the first methanol pressure sensor, the second methanol pressure sensor and the Switching Power Supply respectively.The present invention can realize that alcohol consumption instrument oil mass can only be adjusted, and be smoothed out convenient for engine test under various operating modes, while methanol pump will not be run at the moment with full load in alcohol consumption instrument, save the energy.
Description
Technical field
The invention belongs to engine performance measuring apparatus fields, consume instrument fuel-flow control system more particularly, to a kind of alcohol.
Background technology
With petroleum resources supply growing tension and air environmental pollution it is increasingly serious, researchers are one after another mesh
Light invests various replacement clean fuels.In plurality of replacement clean fuel, methanol fuel has many merits, such as octane
Value is high, and the capability of antidetonance is good；Oxygen-containing in molecule, high combustion efficiency, soot and hydrocarbon emission are very low；Inflammability limit is big, has
Beneficial to lean-burn；Methanol can be made by coal, meet the national conditions of rich coal resources in China, therefore methanol fuel cost is relatively low.This
A little remarkable advantages also make methanol become very representative and development potentiality one kind in alternative fuel.The performance of methanol engine is ground
Studying carefully also becomes the research hotspot of engine art.
In engine performance index, fuel consumption is to weigh the important indicator of internal combustion engine economic performance, therefore is sent out
When motivation is tested, it is necessary to assure this physical quantity is accurate enough, with the economic performance of accurate measured engine.In engine
In performance test, fuel consumption is measured by fuel consumption meter.The measuring principle of fuel consumption meter is generally basede on weight method：
By a certain amount of fuel storage in the lubricating cup of fuel consumption meter, when starting measurement by weigh in a period of time start time and at the end of
Carve the fuel weight in fuel consumption meter lubricating cup, you can obtain the decrement of fuel oil in this period, this decrement is engine
Fuel consumption.
, it is necessary to be adjusted according to different operating condition of test to the charge oil pressure of engine in methanol engine performance test
Section.But in actual tests, the pump core motor of methanol pump is connected on accumulator in alcohol consumption instrument, i.e., the voltage of motor is a steady state value,
Pump core motor speed is constant, and the flow of pump is constant, therefore the charge oil pressure of methanol is also certain value.To be carried out to methanol pressure
It adjusts, it is necessary to set a pressure regulator valve in pipeline, methanol is subjected to pressure release, extra oil flows back to alcohol by oil return line after pressure release
It consumes in the measurement lubricating cup of instrument.But pressure regulator valve is after prolonged use, valve inner part inevitably results from wearing, aging,
Sealing performance declines；Methanol is also a kind of with corrosive liquid in itself, there is certain corrosiveness to metal material.In many ways
Face reason can cause methanol in the oil return line after pressure regulator valve to generate a large amount of bubbles, make return pressure unstable.Since oil return will
It flows back in alcohol consumption instrument and is used in the measurement lubricating cup weighed, the unstable of return pressure can cause to obtain using this weight method measurement
Fuel consumption data can generate fluctuation.Therefore this mode for adjusting charge oil pressure is easily subject to the accuracy of measurement result very big
Influence, it is difficult to obtain accurate measurements, can not accurate measured engine reality fuel-economy performance.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of alcohol to consume instrument fuel-flow control system.
The specific operating mode tested according to real engine carries out corresponding fuel delivery adjusting.
To achieve the above object, it is proposed, according to the invention, provide a kind of alcohol consumption instrument fuel-flow control system, which is characterized in that bag
Include measurement lubricating cup, methanol fuel pump, weighing sensor, Switching Power Supply, switch power controller, the first methanol pressure sensor,
Second methanol pressure sensor, safety valve, overflow pipe and overflow cup, wherein,
Fuel inlet and fuel outlet are provided on the measurement lubricating cup, the fuel inlet is used to be connected with fuel tank,
Main pipeline is connected on the fuel outlet, the main pipeline installs institute for being connected with engine on the main pipeline
State methanol fuel pump；
The weighing sensor is mounted on the measurement lubricating cup, for the gross weight of the methanol in measurement lubricating cup and lubricating cup
Amount；
The input terminal connection accumulator of the Switching Power Supply and its output terminal are connected on methanol fuel pump, to control
State the operating of methanol fuel pump；
The overflow pipe and the first methanol pressure sensor are separately mounted on the main pipeline, and the overflow
The safety valve, the second methanol pressure sensor and the overflow cup, and the second methanol pressure sensor are installed on pipe
It is arranged between the safety valve and the overflow cup；
The switch power controller connect respectively the first methanol pressure sensor, the second methanol pressure sensor and
The Switching Power Supply.
Preferably, the fuel inlet and fuel outlet are arranged at the bottom of the measurement lubricating cup.
Preferably, the safety valve is normally closed type valve.
Preferably, the switch power controller uses PID control.
In general, by the above technical scheme conceived by the present invention compared with prior art, it can obtain down and show
Beneficial effect：
1) present invention can realize that alcohol consumption instrument oil mass can only be adjusted, convenient under various operating modes engine test it is smooth into
Row, while methanol pump will not be run at the moment with full load in alcohol consumption instrument, save the energy；
2) due to eliminating oil return circuit, experiment does not have oil return into the measurement lubricating cup weighed when carrying out, prevented by
A large amount of bubble generations cause pressure transient and then cause the possibility of oil consumption amount measurement data inaccuracy consequence, can improve survey
Measure the precision of result, accurate measured engine economic performance；
3) safety valve is normally closed type valve, only makes just hold when methanol pressure raises extremely in pipe when pipeline breaks down
It opens；
4) the second methanol pressure sensor after safety valve can play the role of detect pipeline in whether faulty generation, open
The power supply of methanol pump can be cut off in time according to its pressure signal by closing power-supply controller of electric, ensure the safety of pipeline；
5) switch power controller uses PID control, and control principle is simple, strong robustness.
Description of the drawings
Fig. 1 is the structure diagram of the alcohol consumption instrument fuel-flow control system built according to the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Conflict is not formed each other to can be combined with each other.
With reference to Fig. 1, a kind of alcohol consumes instrument fuel-flow control system, including measurement lubricating cup 1, methanol fuel pump 3, weighing sensor
10th, Switching Power Supply 2, switch power controller 8, the first methanol pressure sensor 4, the second methanol pressure sensor 5, safety valve 6,
Overflow pipe and overflow cup 7, wherein,
Fuel inlet and fuel outlet are provided on the measurement lubricating cup 1, the fuel inlet is used to be connected with fuel tank,
Main pipeline is connected on the fuel outlet, the main pipeline installs institute for being connected with engine on the main pipeline
State methanol fuel pump 3；
The weighing sensor 10 is mounted on the measurement lubricating cup 1, for the methanol in measurement lubricating cup 1 and lubricating cup
Total weight；
The input terminal connection accumulator 9 of the Switching Power Supply 2 and its output terminal are connected on methanol fuel pump 3, with control
Make the operating of the methanol fuel pump 3；
The overflow pipe and the first methanol pressure sensor 4 are separately mounted on the main pipeline, and described excessive
The safety valve 6, the second methanol pressure sensor 5 and the overflow cup 7 are installed, and second methanol pressure passes in flow tube
Sensor 5 is arranged between the safety valve 6 and the overflow cup 7；
The switch power controller 8 connects the first methanol pressure sensor 4, the second methanol pressure sensor respectively
5 and the Switching Power Supply 2.
Further, the fuel inlet and fuel outlet are arranged at the bottom of the measurement lubricating cup 1.
Further, the safety valve 6 is normally closed type valve.
Further, the switch power controller 8 uses PID control.
Measurement lubricating cup 1 stores the methanol that alcohol consumption instrument is flowed into from methanol tank, from the lubricating cup to starting when carrying out engine test
Machine supplies methanol；
Weighing sensor 10 is responsible for weighing the weight of lubricating cup.When carrying out engine test, after engine steady operation, oil
Sensor measures the weight of a lubricating cup when liquid level drops to a certain position in cup, then works as liquid level in lubricating cup and drops to another one
The weight of a lubricating cup is measured when putting again.The difference of measurement result is the methanol consumption of this period of time intrinsic motivation twice
Amount；
The two poles of the earth of the input termination accumulator 9 of Switching Power Supply 2, output terminate at the both ends of methanol fuel pump 3, electricity are provided for it
Pressure；
First methanol pressure sensor 4 can be detected pressurize by petrolift after oil feeding line fuel pressure, and will
Signal passes to switch power controller 8；
Switch power controller 8 uses PID control, calculates first between the pressure signal value received and predetermined target value
Error, then to error carry out PID calculating, the output voltage of Switching Power Supply 2 is made accordingly according to the output valve being calculated
Adjusting, until error adjusts the rotating speed of methanol fuel pump 3 to reach the mesh for adjusting charge oil pressure and fuel delivery for 0 so as to reach
's；
Second pressure pressure sensor 5 is additionally provided in overflow passage after safety valve 6, when oil feeding line or control system
System breaks down when causing methanol pressure exception rise in pipe, and safety valve 6 will be opened, and methanol is made to flow into overflow cup 7, is overflow at this time
The pressure change that pressure sensor in flow tube road will be detected in pipeline, and communicate with switch power controller 8.Switch
Power-supply controller of electric 8 obtains to cut off after signal the electric power of methanol pump, and methanol pump is stopped, and so as to reduce oil circuit pressure, ensures
The safety of entire oil supply system.
The Switching Power Supply 2 of the present invention is the adjustable Switching Power Supply of output voltage, and input terminates at the two poles of the earth of accumulator 9,
The pump core motor of output termination methanol fuel pump, electric energy is provided for it；
First methanol pressure sensor 4 is arranged in the pipeline after methanol fuel pumps, and detects charge oil pressure；Second methanol
Pressure sensor 5 is arranged in the overflow passage after safety valve 6, for detecting whether there is methanol to flow into overflow pipe.Switch
Power-supply controller of electric 8 is connected with 2 and first methanol pressure sensor 4 and 5 of Switching Power Supply；Safety valve 6 is arranged in overflow passage, is overflow
Flow tube road is communicated with overflow cup 7.
Before carrying out engine test, charge oil pressure parameter is input to by Switching Power Supply according to this specific primary condition of experiment
In controller 8.When startup methanol engine is tested, the methanol from fuel tank flows into the measurement lubricating cup 1 in alcohol consumption instrument
In, when starting to measure the consumption of methanol, the methanol in lubricating cup pumps pressurization through methanol fuel and flows into oil supply pipe, and at this time first
Methanol pressure sensor 4 starts methanol pressure value in measurement pipe, and transfers data to switch power controller 8, Switching Power Supply
The pressure data collected compared with the pressure preset inputted before testing, is calculated deviation between the two by controller 8,
And PID calculating is carried out to deviation.If the pressure data values collected are more than the pressure parameter value of input before experiment, controller reduces
The output voltage of Switching Power Supply 2, until the deviation of pressure measuring value and preset value is equal to 0；The raising of on the contrary then controller is opened
The output voltage in powered-down source 2, until the deviation of pressure measuring value and preset value is equal to 0.When methanol pipeline or oil mass control
When system jam processed causes methanol pressure exception rise in pipe, safety valve 6 will be opened, and methanol is made to flow into overflow cup 7, this
When overflow passage in the pressure change that will detect in pipeline of pressure sensor 5, and led to switch power controller 8
Letter.Switch power controller 8 obtains the electric power that Switching Power Supply 2 will be controlled to cut off methanol fuel pump after signal, and methanol fuel pump stops
It only works, so as to reduce oil circuit pressure, ensures the safety of entire oil supply system.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of alcohol consumes instrument fuel-flow control system, which is characterized in that including measurement lubricating cup, methanol fuel pump, weighing sensor, opens
Powered-down source, switch power controller, the first methanol pressure sensor, the second methanol pressure sensor, safety valve, overflow pipe and overflow
Flow cup, wherein,
Fuel inlet and fuel outlet are provided on the measurement lubricating cup, the fuel inlet is described for being connected with fuel tank
Main pipeline is connected on fuel outlet, the main pipeline installs the first for being connected with engine on the main pipeline
Alcohol ate pumps；
The weighing sensor is mounted on the measurement lubricating cup, for the total weight of the methanol in measurement lubricating cup and lubricating cup；
The input terminal connection accumulator of the Switching Power Supply and its output terminal are connected on methanol fuel pump, to control the first
The operating of alcohol ate pump；
The overflow pipe and the first methanol pressure sensor are separately mounted on the main pipeline, and on the overflow pipe
The safety valve, the second methanol pressure sensor and the overflow cup are installed, and the second methanol pressure sensor is set
Between the safety valve and the overflow cup；
The switch power controller connects the first methanol pressure sensor, the second methanol pressure sensor and described respectively
Switching Power Supply.
2. a kind of alcohol consumption instrument fuel-flow control system according to claim 1, which is characterized in that the fuel inlet and fuel
Outlet is arranged at the bottom of the measurement lubricating cup.
3. a kind of alcohol consumption instrument fuel-flow control system according to claim 1, which is characterized in that the safety valve is normally closed type
Valve.
A kind of 4. alcohol consumption instrument fuel-flow control system according to claim 1, which is characterized in that the switch power controller
Using PID control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383399.6A CN108120601B (en) | 2017-12-20 | 2017-12-20 | Oil quantity control system of alcohol consumption instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383399.6A CN108120601B (en) | 2017-12-20 | 2017-12-20 | Oil quantity control system of alcohol consumption instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108120601A true CN108120601A (en) | 2018-06-05 |
| CN108120601B CN108120601B (en) | 2020-02-14 |
Family
ID=62229560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383399.6A Active CN108120601B (en) | 2017-12-20 | 2017-12-20 | Oil quantity control system of alcohol consumption instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN108120601B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615714Y (en) * | 2003-05-15 | 2004-05-12 | 李尚文 | Device for stabilizing flow |
| CN101470448A (en) * | 2007-12-27 | 2009-07-01 | 江南机器（集团）有限公司 | Constant pressure compensating mechanism for oil press |
| CN202453188U (en) * | 2011-12-26 | 2012-09-26 | 重庆普什机械有限责任公司 | Fuel oil auxiliary system for test stand of multi-cylinder diesel engine |
| CN205064104U (en) * | 2015-09-09 | 2016-03-02 | 北京汽车动力总成有限公司 | Engine pedestal fuel is from protection system |
| CN205280328U (en) * | 2015-07-15 | 2016-06-01 | 天津市欧陆华美自动化设备有限公司 | Tired pulse testing platform control system of forcecirculation |
| CN205879274U (en) * | 2016-07-19 | 2017-01-11 | 湖南湘仪动力测试仪器有限公司 | Little voltage regulator device of mass flow oil consumption appearance |
-
2017
- 2017-12-20 CN CN201711383399.6A patent/CN108120601B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615714Y (en) * | 2003-05-15 | 2004-05-12 | 李尚文 | Device for stabilizing flow |
| CN101470448A (en) * | 2007-12-27 | 2009-07-01 | 江南机器（集团）有限公司 | Constant pressure compensating mechanism for oil press |
| CN202453188U (en) * | 2011-12-26 | 2012-09-26 | 重庆普什机械有限责任公司 | Fuel oil auxiliary system for test stand of multi-cylinder diesel engine |
| CN205280328U (en) * | 2015-07-15 | 2016-06-01 | 天津市欧陆华美自动化设备有限公司 | Tired pulse testing platform control system of forcecirculation |
| CN205064104U (en) * | 2015-09-09 | 2016-03-02 | 北京汽车动力总成有限公司 | Engine pedestal fuel is from protection system |
| CN205879274U (en) * | 2016-07-19 | 2017-01-11 | 湖南湘仪动力测试仪器有限公司 | Little voltage regulator device of mass flow oil consumption appearance |
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| Publication number | Publication date |
|---|---|
| CN108120601B (en) | 2020-02-14 |
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