CN204877758U - Diesel engine fuel sprayer coking analogue test device - Google Patents
Diesel engine fuel sprayer coking analogue test device Download PDFInfo
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- CN204877758U CN204877758U CN201520547563.2U CN201520547563U CN204877758U CN 204877758 U CN204877758 U CN 204877758U CN 201520547563 U CN201520547563 U CN 201520547563U CN 204877758 U CN204877758 U CN 204877758U
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Abstract
The utility model discloses a diesel engine fuel sprayer coking analogue test device, include, pressure control unit, oil -gas pipeline, oil storage tank, sprayer assembly unit, computer control unit and electric actuator unit, the pressure control unit passes through oil, trachea line and sprayer assembly unit intercommunication through oil, trachea line intercommunication oil storage tank, oil storage tank, and computer control unit passes through the experimental parameter setting of electric actuator unit control sprayer assembly unit. The beneficial effects are that, adopt this test device evaluation light diesel oil to generate the deposit incline on the diesel engine fuel sprayer, accomplish to have differentiation nature, repeatability, reproducibility and dependence to the evaluation of commercially available light diesel oil basically, but wide application in monitoring and supervise inspection field, can be fast, the accuracy inspects product correlation index, experimentation cost is cheap. To standardizing the diesel oil service property (quality) on the fuel market, rigorously enforce the diesel vehicle and discharge, have obvious meaning, meet the standard diesel oil can not the field of circulating.
Description
Technical field
The utility model relates to a kind of experiment detection device, particularly relates to a kind of diesel engine oil nozzle coking simulation test device, belongs to experiment detection device technical field.
Background technique
More and more serious haze has badly influenced the health of people.The exhaust emissions of automobile is one of major reason forming haze.
PM2.5 mainly refers to the effulent of motor car engine, and the colony of the effulent using the large vehicle motor of diesel oil primary discharge especially.In the prevention and control of air pollution action plan notice of the State Council, to the application of oil product, there is special requirement: improve China's fuel oil for vehicles quality, accelerate the transformation of petroleum refining enterprise upgrading, for the whole nation provides standard compliant diesel oil and gasoline.Strengthen oil quality supervision and check, sternly hit illegal production, sell the behavior of slop oil.Here supervision and the inspection of vapour, diesel oil service property (quality) is mainly referred to.
Solve fuel oil service property (quality), the equipment of monitoring and the test method of supervision and inspection must be had.The existing petroleum chemical industry standard SH/T764-2005 of China, is difficult to specification fuel oil market with only there being several equipment.
At present, active demand a kind of experimentation cost in market is cheap, is beneficial to universal diesel engine oil nozzle coking simulation test device, for Diesel oil, and the evaluation of diesel oil detergent detergency.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of diesel engine oil nozzle coking simulation test device.
The technological scheme that the utility model adopts is, a kind of diesel engine oil nozzle coking simulation test device, comprise, pressure control unit, oil, gas pipeline, oil storage tank, injector assembly unit, computer control unit and electric actuator unit, described pressure control unit is communicated with oil storage tank by oil, gas pipeline, oil storage tank is communicated with injector assembly unit by oil, gas pipeline, and computer control unit is set by the test parameters of electric actuator unit controls injector assembly unit.
Described pressure control unit, comprise, source of the gas, pressure regulator, pressure transducer, pressure gauge, safety valve, Decompression valves, fuel outlet valve, oil filler and oil storage tank, described source of the gas is communicated with oil storage tank by pressure regulator, oil storage tank can bear the stainless steel oil basin of 1.6MPa pressure, volume 2.5L, at the oil that pressure regulator is communicated with oil storage tank, gas pipeline is also provided with pressure transducer, pressure gauge and Decompression valves, pressure gauge is by the force value of pressure transducer display oil storage tank, by safety valve pressure release during oil storage tank overvoltage, safety valve and oil filler are by oil, gas pipeline is communicated with oil storage tank, fuel outlet valve is by being arranged on the oil of oil storage tank, gas pipeline is communicated with oil storage tank, described computer control unit, comprises, computer and temperature control table, and the electrical signal of temperature control table sampling injector assembly cell temperature parameter, by wire transmission to computer, described injector assembly unit, comprises, heating plate, heating stick, heating stick mounting hole, injector assembly mounting hole, injector assembly, oil, gas pipeline and solenoid valve, described heating stick and injector assembly are cylindrical structural, and described injector assembly at right angle setting on hot plate, inserts and installs in injector assembly mounting hole on hot plate, the aperture of injector assembly mounting hole and the external diameter of injector assembly suitable, described heating stick level is inserted in the heating stick mounting hole be mounted in heating plate, the aperture of heating stick mounting hole and the external diameter of heating stick suitable, oil, gas pipeline are communicated with injector assembly by solenoid valve, and described heating plate is split type heating plate, described electric actuator unit, comprise, solenoid valve, heating stick and blower fan, the electrical signal that described computer control unit exports controls the wind speed of blower fan, the heating of heating stick, with the opening and closing amount of Controlling solenoid valve, control temperature and the fuel injection quantity of the oil nozzle in injector assembly unit further.
On described heating plate, injector assembly is installed and is provided with 4 oil nozzles, and heating stick is installed and is provided with 4; The material of described heating plate is aluminium, according to bottoming hole center line, cuts into three pieces of heating units; Oil nozzle in injector assembly is arranged in the hemicycle cylindricality injector assembly mounting hole that formed between the block of heating plate and block, and the hemicycle cylindricality injector assembly mounting hole between the block of heating plate and block clamps described oil nozzle.
Described oil nozzle adopts test accessory model to be spray formula oil nozzle between CN-DN4S1, with described between the shape of treated side of spraying on the mutually closely sealed sealing surface of formula oil nozzle needle type valve sealing surface of seat be plane and/or trench and/or channel-shaped, ensure that 4 oil nozzles all have substantially identical diesel oil leakage rate.
The beneficial effects of the utility model are, adopt the utility model to be used for evaluating Diesel oil on diesel engine oil nozzle, generate sediments tendency, substantially accomplish, to the evaluation of commercially available Diesel oil, there is distinction, repeatability, reproducibility and coherence, monitoring and supervision and inspection field can be widely used in, can fast, Precision Test product index of correlation, experimentation cost is cheap.To the diesel oil service property (quality) on specification fuel oil market, strict emission of diesel engine, has obvious meaning, does not meet standard diesel oil and can not to circulate field.
Accompanying drawing explanation
Fig. 1 is the utility model diesel engine oil nozzle coking simulation test device structural representation;
Fig. 2 is the structural representation of oil spraying device of diesel oil engine assembly of the prior art;
Fig. 3 is the structural representation of oil spraying device of diesel oil engine assembly of the present utility model;
Formula oil nozzle structural representation is sprayed between Fig. 4 the utility model diesel engine oil nozzle coking simulation test device.
In figure:
10, pressure control unit 11, source of the gas 12, pressure regulator
13, pressure transducer 14, pressure gauge 15, safety valve
17, Decompression valves 18, oil filler 19, oil storage tank
20, computer control unit 21, computer 22, temperature control table
23, oil, gas pipeline 24, solenoid valve 25, fuel outlet valve
30, injector assembly unit 31, injector assembly 32, heating plate 33, blower fan
41, oil nozzle needle type valve 42, oil nozzle valve body 43, needle type valve sealing surface of seat
44, the treated side on needle type valve needle 45, fuel feeding oil duct 46, sealing surface
50, heating plate 53, heating stick 55, heating stick mounting hole 57, injector assembly mounting hole
60, injector assembly.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the utility model diesel engine oil nozzle coking simulation test device structural representation; As shown in Figure 1, the utility model diesel engine oil nozzle coking simulation test device, comprise, pressure control unit 10, oil, gas pipeline 23, oil storage tank 19, injector assembly unit 30, computer control unit 20 and electric actuator unit, described pressure control unit 10 is communicated with oil storage tank 19 by oil, gas pipeline 23, oil storage tank 19 is communicated with injector assembly unit 30 by oil, gas pipeline 23, and computer control unit 20 is set by the test parameters of electric actuator unit controls injector assembly unit 30.
Described pressure control unit 10, comprise, source of the gas 11, pressure regulator 12, pressure transducer 13, pressure gauge 14, safety valve 15, Decompression valves 17, fuel outlet valve 25, oil filler 18 and oil storage tank 19, described source of the gas 11 is communicated with oil storage tank 19 by pressure regulator 12, oil storage tank 19 can bear the stainless steel oil basin of 1.6MPa pressure, volume 2.5L, at the oil that pressure regulator 12 is communicated with oil storage tank 19, gas pipeline 23 is also provided with pressure transducer 13, pressure gauge 14 and Decompression valves 17, pressure gauge 14 shows the force value of oil storage tank 19 by pressure transducer 13, by Decompression valves 17 pressure release during oil storage tank 19 overvoltage, safety valve 15 and oil filler 18 are by oil, gas pipeline 23 is communicated with oil storage tank 19, fuel outlet valve 25 is by being arranged on the oil of oil storage tank 19, gas pipeline 23 is communicated with oil storage tank 19.
Described computer control unit 20, comprises, computer 21 and temperature control table 22, and temperature control table 22 is sampled the electrical signal of injector assembly unit 30 temperature parameter, by wire transmission to computer 21.
Fig. 2 is the structural representation of oil spraying device of diesel oil engine assembly of the prior art; Fig. 3 is the structural representation of oil spraying device of diesel oil engine assembly of the present utility model; As shown in Figure 2 and Figure 3, injector assembly unit 30, comprises, heating plate 50, heating stick 53, heating stick mounting hole 55, injector assembly mounting hole 57, injector assembly 60, oil, gas pipeline 23 and solenoid valve 24; Described heating stick 53 and injector assembly 60 are cylindrical structural, described injector assembly 60 is vertically mounted on heating plate 50, insert in the injector assembly mounting hole 57 being arranged on heating plate 50, the aperture of injector assembly mounting hole 57 and the external diameter of injector assembly 60 suitable.
Described heating stick 53 level is inserted in the heating stick mounting hole 55 be mounted in heating plate 50, the aperture of heating stick mounting hole 55 and the external diameter of heating stick 53 suitable; Oil, gas pipeline 23 are communicated with injector assembly 60 by solenoid valve 24, and described heating plate 50 is split type heating plate.On described heating plate 50, injector assembly 60 is installed and is provided with 4 oil nozzles, and heating stick 53 is installed and is provided with 4; The material of described heating plate 50 is aluminium, is evenly provided with 3 blocks such as grade; Oil nozzle in injector assembly 60 is arranged in the hemicycle cylindricality injector assembly mounting hole 57 that formed between the block of heating plate 50 and block, and the hemicycle cylindricality injector assembly mounting hole 57 between the block of heating plate 50 and block clamps described oil nozzle.
Formula oil nozzle structural representation is sprayed between Fig. 4 the utility model diesel engine oil nozzle coking simulation test device, as shown in Figure 4, oil nozzle adopts test accessory model to be spray formula oil nozzle between CN-DN4S1, with described between the shape of treated side 46 of spraying on the mutually closely sealed sealing surface of formula oil nozzle needle type valve sealing surface of seat 43 be plane and/or trench and/or channel-shaped.Spray formula oil nozzle between selecting and detect sealing under a certain fixation pressure, reflect different between spray formula oil nozzle sealing be all not quite similar, time of leakage be a few second by tens minutes not etc.Like this, in simulation test, because each oil nozzle sealing is different, the seepage speed of generation is different, and the sediments of generation is not identical yet.Select under same equal pressure, the test oil nozzle selected is revealed all within the specific limits, accomplishes that the leak test oil time is basically identical.Make all accessories that will be used for testing, that is, a spray formula oil nozzle is all in same leak condition, and then ensures the reliability of each test result.
Described electric actuator unit, comprise, solenoid valve 24, heating stick and blower fan 33, the electrical signal that described computer control unit 20 exports controls the Kai Heguan of blower fan 33, the heating of heating stick, with the Kai Heguan of Controlling solenoid valve 24, control temperature and the fuel injection quantity of the oil nozzle in injector assembly unit 30 further.
The using method of the utility model device,
(1), washing test device, open oiling 18 and Decompression valves 17, add 100ml petroleum ether from oil filler 18, nitrogen is recoiled petroleum ether bottom oil cylinder, reach the object of cleaning oil cylinder, close nitrogen, release petroleum ether, repeatedly carry out three cleanings, add 100ml petroleum ether for the last time, close oil filler 18 and Decompression valves 17, nitrogen pressure is adjusted to about 0.2Mpa, opening control system, all sprays petroleum ether from the nozzle crossed.Close nitrogen, open Decompression valves 17; Soak the injector assembly 60 in injector assembly unit 30 with petroleum ether, and in petroleum ether, repeatedly rock cleaning to clean, after dry, measure oil nozzle air mass flow (L/h) and record;
(2), in oil storage tank 19,1000ml test Diesel oil is added by oil filler 18, by source of the gas 11 supply pressure, be 1.0MPa through pressure regulator 12 regulation unit pressure, read by pressure gauge 14, made injector assembly 60 oil spout in injector assembly unit 30 by computer 21 Controlling solenoid valve 24, make to be full of test oil between oil storage tank 19 and injector assembly 60.
(3) diesel oil, is made to spray under timing, constant temperature, level pressure, the oil spout state of simulation diesel engine nozzle reality, on computer 21 in computer control unit 20, set whole test parameters, as, oil nozzle test temperature 200 ± 2 DEG C, oil nozzle constant temperature time 70 minutes, oil nozzle cooling temperature 100 ± 2 DEG C, oil nozzle injection time 1 second, oil nozzle injection pressure 10 ± 0.01Mpa, cycle-index 12 is inferior; The order circulated each time is, heats up---constant temperature---cooling---oil nozzle oil spout, and the temperature that temperature control table 22 sets is the temperature of oil nozzle in injector assembly 60;
(4), firing test, to having tested.
(5), tested after, close total source of the gas, it is about 0.2MPa that the nitrogen pressure in oil-fired system is read value by Decompression valves 17 pressure release to pressure gauge 14, opens fuel outlet valve 25, bleed off residue test oil, by Decompression valves 17, nitrogen pressure in system is adjusted to 0.
(6), carefully unload oil nozzle, clean up and dry up by compress wind or dry in petroleum ether, then measure oil nozzle air mass flow (L/h), with flow (L/h) contrast measuring oil nozzle before test, calculate oil nozzle plugging rate, formula is,
Oil injecting nozzle blocking percentaeg after circulating using nozzle at 12, as final test result, is accurate to 0.01.
Adopt the utility model diesel engine oil nozzle coking simulation test device, be used for evaluating Diesel oil on diesel engine oil nozzle, generate sediments tendency, substantially accomplish, to the evaluation of commercially available Diesel oil, there is distinction, repeatability, reproducibility and coherence, monitoring and supervision and inspection field can be widely used in, can fast, Precision Test product index of correlation, experimentation cost is cheap.To the diesel oil service property (quality) on specification fuel oil market, strict emission of diesel engine, has obvious meaning, does not meet standard diesel oil and can not to circulate field.
This testing machine also can be used to provide reliable screening, evaluation means to the research institute of diesel oil detergent.
It is worthy of note; protection domain of the present utility model is not limited to above-mentioned instantiation mode; conceive according to basic fundamental of the present utility model; also can by substantially identical structure; the purpose of this utility model can be realized; as long as those of ordinary skill in the art are without the need to through creative work, the mode of execution that can associate, all belongs to protection domain of the present utility model.
Claims (4)
1. a diesel engine oil nozzle coking simulation test device, it is characterized in that, comprise, pressure control unit (10), oil, gas pipeline (23), oil storage tank (19), injector assembly unit (30), computer control unit (20) and electric actuator unit, described pressure control unit (10) is by oil, gas pipeline (23) is communicated with oil storage tank (19), oil storage tank (19) is by oil, gas pipeline (23) is communicated with injector assembly unit (30), computer control unit (20) is set by the test parameters of electric actuator unit controls injector assembly unit (30).
2. diesel engine oil nozzle coking simulation test device according to claim 1, it is characterized in that, described pressure control unit (10), comprise, source of the gas (11), pressure regulator (12), pressure transducer (13), pressure gauge (14), safety valve (15), Decompression valves (17), fuel outlet valve (25), oil filler (18) and oil storage tank (19), described source of the gas (11) is communicated with oil storage tank (19) by pressure regulator (12), oil storage tank (19) can bear the stainless steel oil basin of 1.6MPa pressure, volume 2.5L, at the oil that pressure regulator (12) is communicated with oil storage tank (19), gas pipeline (23) is also provided with pressure transducer (13), pressure gauge (14) and Decompression valves (17), pressure gauge (14) is by the force value of pressure transducer (13) display oil storage tank (19), by safety valve (15) pressure release during oil storage tank (19) overvoltage, safety valve (15) and oil filler (18) are by oil, gas pipeline (23) is communicated with oil storage tank (19), fuel outlet valve (25) is by being arranged on the oil of oil storage tank (19), gas pipeline (23) is communicated with oil storage tank (19), described computer control unit (20), comprises, computer (21) and temperature control table (22), and the electrical signal of temperature control table (22) sampling injector assembly unit (30) temperature parameter, by wire transmission to computer (21), described injector assembly unit (30), comprises, heating plate (50), heating stick (53), heating stick mounting hole (55), injector assembly mounting hole (57), injector assembly (60), oil, gas pipeline (23) and solenoid valve (24), described heating stick (53) and injector assembly (60) are cylindrical structural, described injector assembly (60) is vertically mounted on heating plate (50), insertion is arranged in the injector assembly mounting hole (57) on heating plate (50), the aperture of injector assembly mounting hole (57) and the external diameter of injector assembly (60) suitable, described heating stick (53) level is inserted in the heating stick mounting hole (55) being mounted in heating plate (50), the aperture of heating stick mounting hole (55) and the external diameter of heating stick (53) suitable, oil, gas pipeline (23) are communicated with injector assembly (60) by solenoid valve (24), and described heating plate (50) is split type heating plate, described electric actuator unit, comprise, solenoid valve (24), heating stick and blower fan (33), the electrical signal that described computer control unit (20) exports controls the wind speed of blower fan (33), the heating of heating stick, with the opening and closing amount of Controlling solenoid valve (24), control temperature and the fuel injection quantity of the oil nozzle in injector assembly unit (30) further.
3. diesel engine oil nozzle coking simulation test device according to claim 2, is characterized in that, on described heating plate (50), injector assembly (60) is installed and is provided with 4 oil nozzles, and heating stick (53) is installed and is provided with 4; The material of described heating plate (50) is aluminium, according to bottoming hole (57) center line, cuts into three pieces of heating units; Oil nozzle in injector assembly (60) is arranged in hemicycle cylindricality injector assembly mounting hole (57) that formed between the block of heating plate (50) and block, and hemicycle cylindricality injector assembly mounting hole (57) between the block of heating plate (50) and block clamps described oil nozzle.
4. diesel engine oil nozzle coking simulation test device according to claim 3, it is characterized in that, described oil nozzle adopts test accessory model to be spray formula oil nozzle between CN-DN4S1, with described between the shape of treated side (46) of spraying on the mutually closely sealed sealing surface of formula oil nozzle needle type valve sealing surface of seat (43) be plane and/or trench and/or channel-shaped, ensure that 4 oil nozzles all have substantially identical diesel oil leakage rate.
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| CN201520547563.2U CN204877758U (en) | 2015-07-24 | 2015-07-24 | Diesel engine fuel sprayer coking analogue test device |
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| CN201520547563.2U CN204877758U (en) | 2015-07-24 | 2015-07-24 | Diesel engine fuel sprayer coking analogue test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020077A (en) * | 2015-07-24 | 2015-11-04 | 天津海泰科科技有限公司 | Coking simulation test device and method for diesel engine oil nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020077A (en) * | 2015-07-24 | 2015-11-04 | 天津海泰科科技有限公司 | Coking simulation test device and method for diesel engine oil nozzle |
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