CN103091106A - Motor vehicle exhaust arc arrester test device - Google Patents
Motor vehicle exhaust arc arrester test device Download PDFInfo
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- CN103091106A CN103091106A CN2011103478524A CN201110347852A CN103091106A CN 103091106 A CN103091106 A CN 103091106A CN 2011103478524 A CN2011103478524 A CN 2011103478524A CN 201110347852 A CN201110347852 A CN 201110347852A CN 103091106 A CN103091106 A CN 103091106A
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- charcoal
- carbon granule
- testing apparatus
- activated carbon
- spark arrester
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Abstract
The invention discloses a motor vehicle exhaust arc arrester test device which comprises a fan, a delivery pipe, an exhaust pipe silencer, intelligent flow totalizers, orifice plate flowmeters, a differential pressure gauge, a coal supply mechanism and an active carbon granule colleting device. The motor vehicle exhaust arc arrester test device is characterized in that two delivery pipelines are arranged between the exhaust pipe silencer and the active carbon granule colleting device, the orifice plate flowmeters and the intelligent flow totalizers are arranged on the two delivery pipelines, and the coal supply mechanism is adjustable and with a constant speed. The motor vehicle exhaust arc arrester test device has the advantages that the coal supply mechanism with the constant speed is adopted, the orifice plate flowmeters and the intelligent flowmeters are adopted, wherein the orifice plate flowmeters and the intelligent flowmeters are with two sizes, so that accuracy of test results is improved greatly. The motor vehicle exhaust arc arrester test device is simple in structure, high in measuring accuracy, wide in measuring range, stable in measuring and convenient to maintain.
Description
Technical field
The present invention relates to a kind of testing apparatus, relate to specifically the testing apparatus of the arc arrester in a kind of motor vehicle exhaust.
Background technology
Existing automobile exhausting spark arrester test is according to the engine displacement of vehicle and rated speed and tests by the air mass flow that variable valve is regulated in delivery pipe, the air mass flow that provides due to the vehicle of different displacements is different, therefore cumbersome when regulating, detection speed slowly, also affects the accuracy that data are processed.
Sale due to brougham is mainly the U.S. at present, and the brougham that is on sale to America all must meet American National Standard ANSI SVIA-1-2007 " four-wheel all-terrain vehicle (ATV) " requirement.Require all all-terrain vehicle (ATV) all arc arrester must be installed in this standard.And the performance that requires arc arrester must satisfy the standard 5100-1 " about the requirement of internal combustion engine arc arrester " of american agriculture forest office issue or SAEJ350-1991 " the medium-sized spark arrester for internal-combustion engine test routine " standard-required of american car engineering association issue.The U.S. proposes such requirement to all-terrain vehicle (ATV) suddenly, makes the all-terrain vehicle (ATV) manufacturing enterprise of China rapid not as good as anti-.The one, do not make the experience of arc arrester, the 2nd, do not verify on the testing equipment (domestic arc arrester basic with not) of arc arrester.In addition the testing apparatus of the U.S. also has the troublesome problem of changing orifice flowmeter, manually calculates air mass flow and error and confession charcoal time easily occur, supply the uppity shortcoming of charcoal speed.
According to our investigation, an equipment is arranged about the testing equipment of arc arrester in China Shanghai Fire Research Institute of Ministry of Public Security, this arc arrester testing equipment is according to making at China standard GB 13365-2005.This equipment can not satisfy the standard 5100-1 " about the requirement of internal combustion engine arc arrester " of american agriculture forest office issue and the requirement of two standards of SAEJ350-1991 " medium-sized spark arrester for internal-combustion engine test routine " that american car engineering association issues.
This project of made in China vehicle can only arrive the U.S. and test.Taking in U.S. test single test will Renminbi up to ten thousand; Single test also will spend the time of some months.If where defective also being difficult to knows underproof reason.Therefore, develop and a kind ofly can satisfy the arc arrester testing equipment that american agriculture forest office requires about the ministerial standard 5100-1 of internal combustion engine arc arrester, solve the actual needs of China all-terrain vehicle (ATV) enterprise arc arrester performance test, break the technology barriers that the U.S. arranges on all-terrain vehicle (ATV), promote the raising of China's all-terrain vehicle (ATV) technology, promote the outlet of China's all-terrain vehicle (ATV).
Summary of the invention
Purpose of the present invention just is to provide a kind of automobile exhausting spark arrester testing apparatus, solve that its adjusting is loaded down with trivial details, test speed is slow and the problem of poor accuracy, provide a kind of simple in structure, measuring accuracy is high, measurement range is wide, Measurement sensibility, testing apparatus easy to maintenance.
Automobile exhausting spark arrester testing apparatus of the present invention, comprise blower fan, delivery pipe, muffler of gas escape tube, intelligent flow-integrating instrument, orifice plate air flowmeter, differential manometer, confession charcoal mechanism and activated carbon granule gathering-device, it is characterized in that: be provided with two conveyance conduits between described muffler of gas escape tube and activated carbon granule gathering-device, be provided with orifice plate air flowmeter and intelligent flow-integrating instrument on two conveyance conduits; Described is that a kind of adjustable constant-speed is for the charcoal device for charcoal mechanism.
Further, also be provided with differential pressure pickup, pressure transducer, temperature sensor on described delivery pipe.This structure adopts intelligent flow-integrating instrument computing machine calculated flow rate, showing with numeral, also can realize data communication, has greatly improved test speed.
Further, the orifice plate air mass flow on described two conveyance conduits is counted the air flowmeter of small one and large one two kinds of specifications.By using two cover different flow meters to be arranged on simultaneously in system, can measure the motor vehicle of large small displacement, avoided changing the trouble that flowmeter brings in test process.
Further, described adjustable constant-speed is such for the structure of charcoal mechanism: mechanism is provided with cylinder, piston, screw rod, belt and buncher for charcoal; Its middle belt pulley coordinates with screw rod, and piston is fixed on screw rod one end, and piston coordinates with cylinder, and cylinder one end and activated carbon granule gathering-device are connected; Buncher drives bolt rotary by belt pulley.This kind structure adopts mechanical type for charcoal mechanism, can realize by the running speed of fixed electrical machinery advancing of piston, is that it supplies charcoal evenly, at regular time and quantity.
Further, described blower fan is Root's blower.This fan blower vibration is little, noise is little, and exhaust is stable does not almost have exhaust to pulse.This machine is equipped with air cleaner, and the air cleaner of output does not contain any oil and dust, has guaranteed the accuracy of test result.
Further, the bottom of described activated carbon granule gathering-device is provided with leak, and is sealed with gland bonnet.For the ease of clear except the carbon granule in activated carbon granule gathering-device collecting box,
Further, what described cylinder one end and activated carbon granule gathering-device were connected is for the outlet of charcoal pipe, the described center, end that extends to activated carbon granule gathering-device air duct for the outlet of charcoal pipe.Being arranged on the center, end is can enter smoothly arc arrester for the ease of the test charcoal.
Further, described activated carbon granule gathering-device air out is provided with the NO30 filter screen.This filter screen should be able to filter the carbon granule of 600um.
Beneficial effect of the present invention: 1. the present invention has adopted the orifice plate air flowmeter of two cover different sizes, has realized from the testing requirement of the all-terrain vehicle (ATV) of 50ml to 1500ml discharge capacity; This measurement range has contained all discharge capacity scopes of all-terrain vehicle (ATV).This equipment is very convenient on the measurement measurement range selection, selects the different flow meter according to uninterrupted in measuring process.Reduced and changed the trouble that orifice plate brings.
2. this equipment has adopted intelligent flow-integrating instrument carry out flow quantity intelligent calculating and show.This intelligent flow-integrating instrument has pressure, temperature compensation, and nonlinear compensation has guaranteed the degree of accuracy of air-flow measurement.
3. this equipment adopts cylinder piston for the charcoal mode, and piston moves with constant speed in cylinder, and the charcoal inside the promotion cylinder also certain flow flows out cylinder, has guaranteed punctuality, homogeneity for charcoal.
Description of drawings
Fig. 1 is the structural representation of invention,
Fig. 2 is the vertical view of Fig. 1,
Fig. 3 supplies the structural representation of charcoal mechanism in the present invention.
Embodiment
Be structural representation of the present invention as shown in Figure 1, Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the structural representation for charcoal mechanism of the present invention; The automobile exhausting spark arrester testing apparatus of this reality invention, as shown in Figure 1, what blower fan adopted is Root's blower, Root's blower 1 is connected with exhaust silencer 3 by flexibly connecting 2; Endpiece at exhaust silencer 3 is provided with pipeline.Change into after described pipeline extends on the pipeline 9 that is divided into two, 10, two pipelines and be respectively arranged with intelligent flow-integrating instrument 17 and condenser type differential pressure pickup 18; Be provided with the orifice plate air flowmeter on described pipeline, it is described that what arrange on pipeline 9 is macroporous plate air flowmeter 21, what arrange on pipeline 10 is aperture plate air flowmeter 22, this is the test request for the exhaust spark trap device of the motor vehicle that adapts to different displacements, can satisfy the motor vehicle detecting of the discharge capacity from 50ml to 1500ml and need not change the orifice plate air flowmeter.Be provided with capacitance pressure transducer, 19 and thermocouple temperature sensor 20 in the rear end of orifice plate air flowmeter.Described intelligent flow-integrating instrument 17 and condenser type voltage difference transformer 18 have solved in test process, the trouble that artificial instant computing flow brings.Showing with numeral, also can realize data communication, greatly improved test speed.Because the line size of two orifice plate air flowmeter is different, in the air measure portion, two circuits have been designed.Operation valve 8 has been installed respectively on the two-way pipeline.Solved and changed the trouble that orifice plate brings because flow exceeds measurement range.Select two purposes of overlapping intelligent flow-integrating instruments to be to improve the precision of Flow Measuring System, need flow system is demarcated, in calibration process, relate to Flow Measuring System is carried out non-linear correction, if the modified value of two cover measuring systems can the same two cover measuring systems not share a cover intelligent flow-integrating instrument, can't realize demarcating the non-linear correction that is.
Two pipelines are before close activated carbon granule gathering-device 12, and two pipelines unite two into one, and are connected with activated carbon granule gathering-device 12.Described exhaust outlet should have the distance of 200mm apart from the collection tank wall of activated carbon granule gathering-device.The length of collecting box is at least 1000mm.Exhaust outlet is downward, more than the left and right tank wall also should keep the distance of 200mm with exhaust outlet.The width design of collecting box is 600mm, and the height design of collecting box is 500mm.
Can enter smoothly in arc arrester or gas outlet for the ease of the test charcoal, will extend to for the outlet of charcoal pipe the center, end of collecting box air duct.
In order to filter the carbon granule of 600um, in the collecting box exit, the filter screen of No. NO30 has been installed.
For the ease of removing the carbon granule in collecting box, in the collecting box bottom, be provided with leak, and sealed with gland bonnet.
Adjustable constant-speed is connected with the activated carbon granule gathering-device for charcoal mechanism 25, as shown in Figure 3, includes cylinder 33, piston 32, screw rod 30, belt pulley 31, belt, buncher 34 compositions for charcoal mechanism 25.Its middle belt pulley and screw rod are with the respective outer side edges of turbine, and piston is fixed on screw rod one end, and piston coordinates with cylinder, and the air duct 35 in cylinder one end and gathering-device is connected; Buncher drives bolt rotary by belt pulley.Motor can provide at the uniform velocity pace to piston by control rate, thereby makes for charcoal even.Can enter smoothly in arc arrester or gas outlet for the ease of the test charcoal, will extend to for the outlet of charcoal pipe the center, end of activated charcoal gathering-device air duct.
The principle of confession charcoal mechanism is that buncher is rotated by the belt pulley that belt drives on screw rod by belt pulley.Belt pulley on screw rod is connected with screw rod by screw thread.Belt pulley is to be fixed on support, along with the rotation of belt pulley, and screw displacement, pushing piston moves, thereby promotes the movement of test charcoal.Before test, according to test with the charcoal amount what, add test to use charcoal from the top.Adjust piston position, make the test charcoal arrive the top, build top cover.Adjust the speed governing knob of buncher to the appropriate location, after on-test, open speed regulating motor switch, along with electric machine rotation, the belt pulley rotation drives screw rod and thinks upper movement, move on pushing piston, carbon granule enters the activated carbon granule gathering-device under action of gravitation along conduit.
No matter the test charcoal is how much like this, be thick charcoal or thin charcoal, before test, piston is adjusted to the test charcoal arrive tip position.Complete the supply of test charcoal during off-test, this moment, piston position was at the top.Test period is 15 ± 5min all, so the speed that piston need to move is just only relevant with the position of piston, the speed that piston moves has the speed of motor to determine, the speed of screw rod and motor has been set up relation one to one as shown in Figure 3, directly piston position is labeled on the buncher knob, in use, only adjust the buncher knob according to the reference position of piston and get final product to the relevant position, just can obtain supplying accurately the charcoal time.
As shown in Figure 1, 2, 3, activated carbon granule gathering-device and for the equal stent support of charcoal mechanism and intelligent flow-integrating instrument is convenient to be convenient in whole testing apparatus install and operation.
Claims (8)
1. automobile exhausting spark arrester testing apparatus, comprise blower fan, delivery pipe, muffler of gas escape tube, intelligent flow-integrating instrument, orifice plate air flowmeter, differential manometer, confession charcoal mechanism and activated carbon granule gathering-device, it is characterized in that: be provided with two conveyance conduits between described muffler of gas escape tube and activated carbon granule gathering-device, be provided with orifice plate air flowmeter and intelligent flow-integrating instrument on two conveyance conduits; Described is that a kind of adjustable constant-speed is for the charcoal device for charcoal mechanism.
2. automobile exhausting spark arrester testing apparatus according to claim 1, is characterized in that: also be provided with differential pressure pickup, pressure transducer, temperature sensor on described delivery pipe.
3. automobile exhausting spark arrester testing apparatus according to claim 1, it is characterized in that: the orifice plate air mass flow on described two conveyance conduits is counted the air flowmeter of small one and large one two kinds of specifications.
4. automobile exhausting spark arrester testing apparatus according to claim 1 is characterized in that: described adjustable constant-speed is such for the structure of charcoal mechanism: mechanism is provided with cylinder, piston, screw rod, belt and buncher for charcoal; Its middle belt pulley coordinates with screw rod, and piston is fixed on screw rod one end, and piston coordinates with cylinder, and cylinder one end and activated carbon granule gathering-device are connected; Buncher drives bolt rotary by belt pulley.
5. automobile exhausting spark arrester testing apparatus according to claim 1, it is characterized in that: described blower fan is Root's blower.
6. automobile exhausting spark arrester testing apparatus according to claim 1, it is characterized in that: the bottom of described activated carbon granule gathering-device is provided with leak, and is sealed with gland bonnet.
7. automobile exhausting spark arrester testing apparatus according to claim 4, it is characterized in that: what described cylinder one end and activated carbon granule gathering-device were connected is for the outlet of charcoal pipe, the described center, end that extends to activated carbon granule gathering-device air duct for the outlet of charcoal pipe.
8. automobile exhausting spark arrester testing apparatus according to claim 7, it is characterized in that: described activated carbon granule gathering-device air out is provided with the NO30 filter screen.
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| CN201110347852.4A CN103091106B (en) | 2011-10-29 | 2011-10-29 | Motor vehicle exhaust arc arrester test device |
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| CN201110347852.4A CN103091106B (en) | 2011-10-29 | 2011-10-29 | Motor vehicle exhaust arc arrester test device |
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| CN103091106A true CN103091106A (en) | 2013-05-08 |
| CN103091106B CN103091106B (en) | 2015-07-22 |
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| US5058440A (en) * | 1990-09-04 | 1991-10-22 | Caterpillar Inc. | Gas sampling device and dilution tunnel used therewith |
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| CN201548373U (en) * | 2009-10-22 | 2010-08-11 | 芜湖杰锋汽车动力***有限公司 | Exhaust system pressure loss measuring device of automobile engine exhaust system |
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2011
- 2011-10-29 CN CN201110347852.4A patent/CN103091106B/en active Active
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| US5058440A (en) * | 1990-09-04 | 1991-10-22 | Caterpillar Inc. | Gas sampling device and dilution tunnel used therewith |
| CN2508889Y (en) * | 2001-12-13 | 2002-09-04 | 姜永恩 | Special equipment for single-screw pump metal stator |
| CN2601778Y (en) * | 2003-03-27 | 2004-02-04 | 徐本义 | High-accuracy semi-automatic horizontal honing machine |
| CN1919462A (en) * | 2006-09-06 | 2007-02-28 | 陈朝晖 | Freely-falling body automatic crusher |
| CN101113947A (en) * | 2007-06-01 | 2008-01-30 | 中国汽车技术研究中心 | Devices and methods for measuring granular material discharged by vehicle |
| CN201159691Y (en) * | 2007-12-20 | 2008-12-03 | 比亚迪股份有限公司 | Performance detection apparatus of air filter |
| CN101196435A (en) * | 2007-12-26 | 2008-06-11 | 江苏大学 | Vehicle fuel oil consumption testing device through exhaustion dilution measurement |
| CN101382467A (en) * | 2008-10-24 | 2009-03-11 | 王明文 | Method for detecting exhaust spark trap device for automobile and detecting test stand |
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Address after: 400000 No. 9, Xinjin Avenue, Jiulongpo high tech Zone, Chongqing Patentee after: China Merchants Testing Vehicle Technology Research Institute Co.,Ltd. Address before: Northern New Chongqing 401122 ring Star Road No. 1 Patentee before: CHONGQING VEHICLE TEST & Research Institute |