CN103308317A - Liquid water drainage quantity testing device and method of automobile exhaust pipe - Google Patents
Liquid water drainage quantity testing device and method of automobile exhaust pipe Download PDFInfo
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- CN103308317A CN103308317A CN201310278135XA CN201310278135A CN103308317A CN 103308317 A CN103308317 A CN 103308317A CN 201310278135X A CN201310278135X A CN 201310278135XA CN 201310278135 A CN201310278135 A CN 201310278135A CN 103308317 A CN103308317 A CN 103308317A
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Abstract
The invention relates to a liquid water drainage quantity testing device and method of an automobile exhaust pipe, particularly to a test of the liquid water drainage quantity of the automobile exhaust pipe at low temperatures. The whole test is completed in an automobile exhaust test environment chamber system, one end of an exhaust pipe liquid water collecting device is fixed to the bottom of the exhaust pipe of an automobile to be tested, and the other end of the exhaust pipe liquid water collecting device is connected with an environment chamber exhaust gas pumping-exhausting system. At a set test temperature of the environment chamber, the automobile to be tested is fixed onto a chassis dynamometer, and after the automobile is hotted, liquid water drained from the exhaust pipe of the automobile to be tested under an ECE15 (Economic Commission for Europe 15) working condition and a time-set idling condition are respectively collected, and weighed by an electronic scale to obtained the liquid water drainage quantity of the tested automobile. According to the liquid water drainage quantity testing method of the automobile exhaust pipe, the liquid water drainage quantities of the automobile under the conditions such as different engine systems, different exhaust pipe layout design modes, different types of fuel and different external environmental temperatures can be compared to search out factors affecting the liquid water drainage quantity of the automobile and further help take corresponding measures to reduce the liquid water drainage quantity of the automobile and to reduce or eliminate the harm brought by road freezing due to the liquid water drained from the exhaust pipe of the automobile at the low temperatures.
Description
Technical field
The present invention relates to a kind of automobile exhaust pipe aqueous water discharge capacity proving installation and method of testing, especially for the test of automobile exhaust pipe aqueous water discharge capacity under low-temperature condition.
Background technology
Along with the city automobile recoverable amount significantly increases, it is serious that the icing situation in urban road mostly appears in each city, winter severe cold area, causes difficulty for driving starting and braking.The icing phenomenon of serious road has not only reduced the operational efficiency of urban transportation system, has also increased the hidden danger that accident occurs.Industry be it is generally acknowledged the factors such as driving vehicle engine system, Design of Exhaust Manifold arrangement, fuel used type and ambient temperature condition, all can cause the difference of automobile exhaust pipe aqueous water discharge capacity.In severe cold area automobile exhaust pipe aqueous water discharge capacity road traffic there is direct impact.Measured automobiles water discharge how, and then formulate corresponding technology path and solve, problem demanding prompt solution become.But at present the field tests of automobile exhaust pipe aqueous water discharge capacity is still blank, do not have corresponding national standard or industry standard for proving installation and method of testing, both at home and abroad also without corresponding case.
Summary of the invention
For effectively weighing automobile exhaust pipe aqueous water discharge capacity, assess it to the impact of road traffic, patent of the present invention provides a kind of proving installation of automobile exhaust pipe aqueous water discharge capacity.
The technical scheme that patent of the present invention adopts is: a kind of proving installation of automobile exhaust pipe aqueous water discharge capacity, whole experiment is finished in motor vehicle emission experimental situation storehouse, liquid water collection device one end is fixed on detected sample tailstock tracheae bottom, other end JA(junction ambient) storehouse tail gas exhaust system, tested sample car is fixed on the chassis dynamometer, aqueous water in sample car simulated condition collection sample car in service tailpipe, with fresh-keeping plastic bag parcel, move to usefulness electronic balance weighing aqueous water quality between the weighing environment storehouse outside after the liquid water collection.
Proving installation in the technique scheme is explained as follows:
1, motor vehicle emission experimental situation storehouse system in the such scheme can set the experimental temperature different from ambient temperature, and the Temperature Setting scope is 30 ℃～-30 ℃ among the present invention.
2, tested sample car can be fixed on the various operating mode operations of simulation on the chassis dynamometer, two kinds of operational modes of simulated automotive ECE15 operating mode and idling operation among the present invention in the such scheme.
3, environment storehouse tail gas exhaust system works negative pressure is 100～150Pa in the such scheme, the tail gas that pump drainage sample car tail pipe is discharged.
4, the liquid water collection device is glass beaker, semi-open silicone rubber tube and fixing rubber ring in the such scheme, and silicone rubber tube opening port upper end is fixed on the automobile tail gas pipe bottom, and the lower end is by fixing rubber ring fixing glass beaker.Silicone rubber tube closing end JA(junction ambient) storehouse tail gas exhaust system.
5, the electronic balance precision restrains more than or equal to one of percentage in the such scheme.
Another object of the present invention provides a kind of method of testing of above-mentioned automobile exhaust pipe aqueous water discharge capacity proving installation, can detect the discharge capacity of automobile exhaust pipe aqueous water according to this method.Finish the test of automobile exhaust pipe aqueous water discharge capacity according to following steps:
1, will test sample car and place in the such scheme environment storehouse, be fixed in the such scheme on the chassis dynamometer, start environment storehouse system, set the object of experiment temperature T.Environment storehouse temperature left standstill 1 hour after reaching T, checked engine coolant and oil temperature, if step 2 ℃ then carry out in T ± 1, otherwise continued to leave standstill, until engine coolant and oil temperature reach T ± 1 ℃.
2, open environment storehouse tail gas exhaust system, environment storehouse tail gas exhaust system works negative pressure is 100～150Pa; Open chassis dynamometer, carry out Resistance Setting, the temperature when the preheating vehicle makes its engine coolant and oil temperature reach the train stability state on chassis dynamometer with reference to the requirement of VI type test among the GB18352.3-2005.
3, ECE15 operating mode gas outlet aqueous water discharge capacity test: in 2 minutes after step 2 is finished, move an ECE15 operating mode, collect simultaneously the aqueous water of offgas duct discharging, aqueous water acquisition time 13 minutes, i.e. an ECE15 operating mode time.After liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, be the collected aqueous water quality of electronic balance weighing ECE15 operating mode that one of percentage restrains with precision immediately.
4, idling operation gas outlet aqueous water discharge capacity test: in 2 minutes after step 3 is finished, the idling operation operation is collected the aqueous water of offgas duct discharging, aqueous water acquisition time 20 minutes simultaneously.After liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, be the collected aqueous water quality of electronic balance weighing idling operation that one of percentage restrains with precision immediately.If do not carry out idling operation draining test, can directly carry out step 5 by step 3.
5, experiment finishes, and closes detection system.
The invention has the beneficial effects as follows, can contrast the gas outlet aqueous water discharge capacity of automobile under the conditions such as different engine systems, Design of Exhaust Manifold arrangement, type of fuel and ambient temperature condition according to this method of testing, explore the factor that affects automobile exhaust pipe aqueous water discharge capacity, and then the reduction automobile exhaust pipe aqueous water discharge capacity that takes appropriate measures, weaken or eliminate the generation of the icing situation of road under the cryogenic conditions.
Description of drawings
Below in conjunction with drawings and Examples patent of the present invention is further specified.
The block diagram of a kind of automobile exhaust pipe aqueous water of Fig. 1 the present invention discharge capacity proving installation.
Fig. 2 specific embodiments of the invention
Gas outlet liquid water collection device schematic diagram among Fig. 3 the present invention.
Fig. 4 gas outlet liquid water collection device embodiment
A kind of automobile exhaust pipe aqueous water of Fig. 5 discharge capacity method of testing process flow diagram
Fig. 6 embodiment method of testing process flow diagram
1. automobile tail gas pipes among the figure, 2. semi-open silicone rubber tube, 3. glass beaker, 4. fixing rubber ring
Embodiment;
The present invention relates to a kind of automobile exhaust pipe aqueous water discharge capacity proving installation and method of testing, Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are proving installation figure of the present invention and enforcement illustration, and Fig. 5 and Fig. 6 are method of testing process flow diagram of the present invention and implement illustration.The present invention is further described below in conjunction with accompanying drawing
Shown in Figure 1: a kind of automobile exhaust pipe aqueous water discharge capacity proving installation, whole device is comprised of motor vehicle emission experimental situation storehouse, chassis dynamometer, liquid water collection device, environment storehouse tail gas exhaust system, sample car to be measured.Whole experiment is finished in the system of motor vehicle emission experimental situation storehouse, and tested sample car is fixed on the chassis dynamometer.Liquid water collection device one end connects sample car offgas duct, other end JA(junction ambient) storehouse tail gas exhaust system.The aqueous water that experiment is collected is the electronic balance weighing that one of percentage restrains by precision between weighing.
Shown in Figure 2: a kind of automobile exhaust pipe aqueous water discharge capacity proving installation embodiment, it is as shown in the table that used test relates to instrument and equipment articles for use specifications and models:
Shown in Figure 3: liquid water collection device, whole device are by automobile tail gas pipe (1), semi-open silicone rubber tube (2), glass beaker (3), fixedly rubber ring (4) forms.Semi-open silicone rubber tube (2) opening port upper end is fixed on automobile tail gas pipe (1) bottom, and fixedly rubber ring (4) fixing glass beaker (3) is passed through in the opening port lower end.Semi-open silicone rubber tube (2) close port is fixedly connected with environment storehouse tail gas exhaust system.
Shown in Figure 4: the specific embodiment of liquid water collection device in a kind of automobile exhaust pipe aqueous water of the present invention discharge capacity proving installation.Silicone rubber tube one end is the glass beaker of 500ml capacity fixedly, receives the aqueous water that automobile exhaust pipe produces, the tail gas exhaust system in other end JA(junction ambient) storehouse.The environment storehouse is that the Wuxi magnificent company of brocade produces, and model is CAT-960-DS-P-4WD.
Fig. 5 is method of testing process flow diagram of the present invention, and experimental provision is ready, and the test of beginning gas outlet aqueous water discharge capacity may further comprise the steps:
1, will test sample car and place in the such scheme environment storehouse, be fixed in the such scheme on the chassis dynamometer, start environment storehouse system, set the object of experiment temperature T.Environment storehouse temperature left standstill 1 hour after reaching T, checked engine coolant and oil temperature, if step 2 ℃ then carry out in T ± 1, otherwise continued to leave standstill, until engine coolant and oil temperature reach T ± 1 ℃.
2, open environment storehouse tail gas exhaust system, environment storehouse tail gas exhaust system works negative pressure is 100～150Pa; Open chassis dynamometer, carry out Resistance Setting with reference to the requirement of VI type test among the GB18352.3-2005.Temperature when the preheating sample car makes its engine coolant and oil temperature reach the train stability state on chassis dynamometer.
3, ECE15 operating mode gas outlet aqueous water discharge capacity test: in 2 minutes after step 2 is finished, move an ECE15 operating mode, collect simultaneously the aqueous water of offgas duct discharging, aqueous water acquisition time 13 minutes, i.e. an ECE15 operating mode time.After liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, be the collected aqueous water quality of electronic balance weighing ECE15 operating mode that one of percentage restrains with precision immediately.
4, idling operation gas outlet aqueous water discharge capacity test: in 2 minutes after step 3 is finished, the idling operation operation is collected the aqueous water of offgas duct discharging, aqueous water acquisition time 20 minutes simultaneously.After liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, be the collected aqueous water quality of electronic balance weighing idling operation that one of percentage restrains with precision immediately.If do not carry out idling operation draining test, can directly carry out step 5 by step 3.
5, experiment finishes, and closes detection system.
Fig. 6 is embodiment method of testing process flow diagram, and concrete steps are as follows:
1. start environment storehouse system, set object of experiment temperature-20 ℃.Left standstill 1 hour after environment storehouse temperature reaches-20 ℃, check that engine coolant and oil temperature are 19.5 ℃
2. preheating sample car: open environment storehouse tail gas exhaust system, with engine ignition idling operation running 2 minutes, open chassis dynamometer, again with the speed operation of 50km/h 10 minutes.
3.ECE15 operating mode gas outlet aqueous water discharge capacity test: after the step 2, the ECE15 operating mode that brings into operation is collected the aqueous water of offgas duct discharging simultaneously.
4. after liquid water collection finishes, between weighing, remove fresh-keeping plastic bag with the fresh-keeping plastic bag transfer of packages, the collected aqueous water of weighing is 116.01 grams.
5. idling operation gas outlet aqueous water discharge capacity test: at step 3 operation in rear 1 minute idling operation, collect simultaneously the aqueous water of offgas duct discharging, aqueous water acquisition time 20 minutes.
6. after liquid water collection finishes, between weighing, remove fresh-keeping plastic bag with the fresh-keeping plastic bag transfer of packages, the collected aqueous water of weighing is 5.22 grams.
7. experiment finishes, and closes detection system.
The invention provides a kind of proving installation and method of testing of automobile aqueous water water discharge.According to the apparatus and method that this invention provides, can contrast automobile exhaust pipe aqueous water discharge capacity under the conditions such as different automobile types, different operational mode, different oil products.The road ice formation issues provides basis for estimation under the cryogenic conditions in order to solve.
Claims (14)
1. automobile exhaust pipe aqueous water discharge capacity proving installation, it is characterized in that whole experiment finishes in motor vehicle emission experimental situation storehouse, liquid water collection device one end is fixed on detected sample tailstock tracheae bottom, other end JA(junction ambient) storehouse tail gas exhaust system, tested sample car is fixed on the chassis dynamometer, at the aqueous water of sample car simulated condition collection sample car in service tailpipe, with freshness protection package parcel, move to usefulness electronic balance weighing aqueous water quality between the weighing environment storehouse outside after the liquid water collection.
2. according to claims 1 described automobile exhaust pipe aqueous water discharge capacity proving installation, it is characterized in that installation composition is: motor vehicle emission experimental situation storehouse system, chassis dynamometer, environment storehouse tail gas exhaust system, liquid water collection device, electronic balance.
3. according to claims 2 described automobile exhaust pipe aqueous water discharge capacity proving installations, it is characterized in that described motor vehicle emission experimental situation storehouse system can set the experimental temperature different from ambient temperature.
4. according to claims 2 described automobile exhaust pipe aqueous water discharge capacity proving installations, it is characterized in that tested sample car can be fixed on the various operating conditions of simulation on the chassis dynamometer.
5. according to claims 2 described automobile exhaust pipe aqueous water discharge capacity proving installations, but it is characterized in that vaporous water and other tail gas that tail gas exhaust system pump drainage sample car tail pipe in described environment storehouse produces, the work negative pressure is 100～150Pa.
6. according to claims 2 described automobile exhaust pipe aqueous water discharge capacity proving installations, it is characterized in that the liquid water collecting device of described automobile consists of: liquid water collection container, stationary installation.
7. according to claims 6 described automobile exhaust pipe aqueous water discharge capacity proving installations, it is characterized in that described stationary installation is semi-open silicone rubber tube and fixing rubber ring, semi-open silicone rubber tube opening port upper end is fixed on the automobile tail gas pipe bottom, and the lower end is by the fixing claims 3 described liquid water collection containers of fixing rubber ring.Closing end is fixedly connected on described environment storehouse tail gas exhaust system.
8. according to claims 2 described automobile exhaust pipe aqueous water discharge capacity proving installations, it is characterized in that described electronic balance precision is for to restrain more than or equal to one of percentage.
9. the method for testing of application rights claim 1 a described a kind of automobile exhaust pipe aqueous water discharge capacity proving installation, at the aqueous water of simulative automobile operating mode collection motor vehicle emission in service, finish according to the following steps:
A. will test sample car and place in the described environment storehouse, be fixed on the described chassis dynamometer, start environment storehouse system, set the object of experiment temperature T.
B. after engine coolant and oil temperature reach target temperature T, open environment storehouse tail gas exhaust system, with engine ignition preheating sample car, the temperature when making engine coolant and oil temperature reach the train stability state.
The test of C.ECE15 operating mode gas outlet aqueous water discharge capacity: ECE15 operating mode operation behind the step B begins to collect the tail pipe aqueous water simultaneously.
D. after liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, use rapidly the collected aqueous water quality of electronic balance weighing ECE15 operating mode.
E. idling operation gas outlet aqueous water discharge capacity test: beginning idling operation operation in 2 minutes behind the step C begins to collect the tail pipe aqueous water simultaneously.
F. after liquid water collection finishes, with the fresh-keeping plastic bag parcel, be transferred to weigh between, remove fresh-keeping plastic bag, use rapidly the collected aqueous water quality of electronic balance weighing idling operation.
10. according to claims 9 described automobile exhaust pipe aqueous water discharge capacity method of testings, it is characterized in that the described environment of steps A storehouse temperature T setting range is 30 ℃～-30 ℃.
11. according to claims 9 described automobile exhaust pipe aqueous water discharge capacity method of testings, it is characterized in that the described engine coolant of step B and oil temperature are T ± 1 ℃.
12. according to claims 9 described automobile exhaust pipe aqueous water discharge capacity method of testings, it is characterized in that the pre-thermal target of the described sample car of step B is engine coolant and the oil temperature temperature when reaching the train stability state.
13. according to claims 9 described automobile exhaust pipe aqueous water discharge capacity method of testing methods, when it is characterized in that collecting aqueous water, the sample car simulation mode of operation is idling operation and two kinds of operational modes of ECE operating mode.
14. according to claims 9 described automobile exhaust pipe aqueous water discharge capacity method of testings, it is characterized in that the described aqueous water acquisition time of step C 13 minutes, i.e. ECE15 operating mode, step e idling operation operation acquisition time is 20 minutes.
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| CN201310278135XA CN103308317A (en) | 2013-07-04 | 2013-07-04 | Liquid water drainage quantity testing device and method of automobile exhaust pipe |
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| CN201310278135XA CN103308317A (en) | 2013-07-04 | 2013-07-04 | Liquid water drainage quantity testing device and method of automobile exhaust pipe |
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Cited By (3)
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| CN108036934A (en) * | 2017-11-29 | 2018-05-15 | 江西昌河汽车有限责任公司 | exhaust pipe drainage performance detecting system |
| CN109283109A (en) * | 2018-09-29 | 2019-01-29 | 南京信息工程大学 | Granular material discharged detection device under a kind of quasi- driving status of motor vehicle |
| CN111504735A (en) * | 2020-06-09 | 2020-08-07 | 天津内燃机研究所（天津摩托车技术中心） | Low CO generator set emission test system and test method |
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Cited By (3)
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| CN109283109A (en) * | 2018-09-29 | 2019-01-29 | 南京信息工程大学 | Granular material discharged detection device under a kind of quasi- driving status of motor vehicle |
| CN111504735A (en) * | 2020-06-09 | 2020-08-07 | 天津内燃机研究所（天津摩托车技术中心） | Low CO generator set emission test system and test method |
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Application publication date: 20130918 |