CN2662226Y - Gas adsorption and desorption apparatus test system - Google Patents
Gas adsorption and desorption apparatus test system Download PDFInfo
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- CN2662226Y CN2662226Y CN 200320130809 CN200320130809U CN2662226Y CN 2662226 Y CN2662226 Y CN 2662226Y CN 200320130809 CN200320130809 CN 200320130809 CN 200320130809 U CN200320130809 U CN 200320130809U CN 2662226 Y CN2662226 Y CN 2662226Y
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- gas
- industrial computer
- pressure
- canister
- desorption
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Abstract
The utility model discloses a test system for a gas absorbing and rejecting device used in auto industry, comprising a pressure pre-regulator unit, an automatic flow rate regulating and gas rejecting performance test unit, and a production bar codes input and data output unit. The pressure pre-regulator unit comprises a filter, a regulating valve and a pressure gauge; the automatic flow rate regulating and gas rejecting performance test unit comprises an electropneumatic proportional valve, a vacuum generator, a laminar flow tube, a differential pressure sensor, a gas container, a temperature sensor, a pressure sensor and an industrial computer; the production bar codes input and data output unit comprises a barcode scanner and a printer both connected with the industrial computer. The utility model has the advantages of high precision of measurement, strong resistance of interference and high degree of automation; meanwhile, the utility model is applicable for a continuous test.
Description
Technical field
The utility model relates to a kind of gas absorption desorption apparatus test macro, particularly relates to a kind of gas absorption desorption apparatus test macro that is used for can the detecting automatically of automobile industry, control and data processing.
Background technology
Vehicle fuel steam adsorption/desorption device is commonly called as " canister ", and its purposes is to control the fuel evaporation pollutant that produces in fuel tank and the carburetor bowl effectively, prevents its atmosphere pollution and harm humans health.
As shown in Figure 1, configuration of automobiles after the fuel-steam adsorption/desorption device canister, when gasoline rocks in fuel tank when environment temperature changes or drives a vehicle, fuel oil in the fuel tank just can aggravate evaporation, the fuel-steam that is produced enters canister by the canister adsorption orifice 18 on the fuel tank 13, and the acticarbon in the canister gets up fuel-steam absorption and storage.When driving, engine operation, canister desorption port one 7 produces negative pressure; Perhaps when environment temperature descends, also can form negative pressure in the fuel tank 13, extraneous air enters carbon from logical canister atmospheric air port 19 and irritates, and the fuel-steam that will be stored in the acticarbon brings back to fuel tank 13, and meanwhile the acticarbon in the canister has recovered adsorptive power again; Perhaps when driving, extraneous air enters carbon from logical canister atmospheric air port 19 and irritates, and will be stored in fuel-steam in the acticarbon and be transported in the engine by canister desorption mouth 17 and engine mouth 22 and burn, meanwhile the acticarbon in the canister has recovered adsorptive power again.From above as can be seen, fuel-steam adsorption/desorption device canister has reduced leaking of fuel-steam effectively, has both protected environment, has saved the energy again.
In order to guarantee the adsorption/desorption performance of above-mentioned fuel-steam adsorption/desorption device, must utilize gas absorption desorption apparatus test macro that its desorption performance is tested.
As shown in Figure 2, the method of testing that existing gas absorption desorption apparatus test macro generally adopts is: vacuum pump 20 is used for producing negative pressure, utilize pressure regulator valve 2 to regulate the gaseous tension of the canister desorption mouth 17 that enters canister 12, utilize flowmeter 21 (being generally suspended body flowmeter) to come the measurement gas flow, utilize tensimeter 3 to come the pressure of measurement gas, the canister adsorption orifice 18 of canister 12 is connected with fuel tank 13; In test process, after vacuum pump 20 starts, make to produce negative pressure in the canister 12, promptly the pressure P 1 of the canister atmospheric air port 19 of canister 12 is greater than the pressure P 2 of canister desorption mouth 17, negative pressure, extraneous air enters canister 12 by canister atmospheric air port 19, by in the process of canister 12, make the fuel-steam desorption that is stored in the acticarbon, and flow out from canister desorption mouth 17 together, successively via flowmeter 21, tensimeter 3 and pressure regulator valve 2, discharge then by vacuum pump 20; Meanwhile, utilize pressure regulator valve 2 that gaseous tension is adjusted to P respectively
LowAnd P
High, and utilize tensimeter 3 to measure two kinds of gas actual pressures under the situation respectively, utilize flowmeter 21 to measure two kinds of gas flows under the situation respectively; Respectively the numerical value of the scope of regulation in the gaseous tension measured under above-mentioned two kinds of situations and gas flow and the table 1 is compared then, if meet the numerical range of table 1 regulation, the desorption performance of representing this gas absorption desorption apparatus meets the requirements, otherwise represents that then the desorption performance of this gas absorption desorption apparatus is undesirable.
Table 1 desorption characteristics decision table
| Pilot project | Desorption characteristics | Pressure P (kPa) | Flow L (ml/min) |
| The test of canister desorption characteristics | Negative pressure | ≤P Low | ≤L Low |
| ≥P High | ≥L High |
The shortcoming of above-mentioned existing gas absorption desorption apparatus test macro is: measurement data is subject to external interference, measuring accuracy is low, labor intensity of operating staff is big, automatic continuous detecting can not be carried out, the requirement of the desorption characteristics of test gas adsorption/desorption device in machinery, automobile and other industries can't be satisfied.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of above-mentioned existing gas absorption desorption apparatus test macro, and a kind of simple in structure, low cost of manufacture, gas absorption desorption apparatus test macro that measuring accuracy is high are provided.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: comprising: prime regulator, automatic flow are regulated and desorption performance pick-up unit and product bar code input and data output device; Described prime regulator comprises: be connected to filtrator, pressure regulator valve and tensimeter on the gas piping in turn; Described automatic flow is regulated and the desorption performance pick-up unit comprises: the electric Proportion valve that two ends are connected with vacuum generator with tensimeter respectively, the vacuum generator that two ends are connected with the laminar flow pipe with electric Proportion valve respectively, the laminar flow pipe that two ends are connected with gas tank with vacuum generator respectively, the gas tank that two ends are connected with the gas collection piece with the laminar flow pipe respectively, the differential pressure pick-up that two ends are connected with industrial computer with the laminar flow pipe respectively, the temperature sensor that two ends are connected with industrial computer with the gas collection piece respectively; Two ends respectively with gas collection piece pressure transducer that is connected with industrial computer and the industrial computer that is connected with temperature sensor, differential pressure pick-up, pressure transducer respectively; Input of described product bar code and data output device comprise: barcode reader that is connected with industrial computer and printer respectively.
The beneficial effects of the utility model are:
1. the precision height of Ce Lianging: owing to use laminar flow pipe and differential pressure pick-up, the detection of flow is converted to the detection of small differential pressure, the precision height of detection, good stability as detecting element.The pressure detection adopts pressure sensor of tested gas because sensor internal has the corresponding compensation circuit for environment, has reduced the influence of environment simultaneously.The detection output signal of above flow and pressure is electric signal, send industrial computer to after, in industrial computer, carry out data processing automatically, avoided operator's reading error.
2. antijamming capability is strong: for the environmental factor-temperature that has the greatest impact in the test, utilize temperature sensor to send the current environmental temperature signal to industrial computer in real time, industrial computer is according in real time testing result being revised from the temperature signal of temperature sensor, reduced the influence of environment temperature, strengthened the antijamming capability of system testing result.
3. can carry out continuous detecting: owing to adopted industrial computer that electric Proportion valve is controlled, the flow of adjustments of gas, make the flow of gas can carry out continuous variation, carry out the collection and the processing of data continuously simultaneously, finish the process of detection according to imposing a condition accordingly.
4. automaticity height: industrial computer has good man computer interface, use barcode scanner and connect industrial computer as input equipment, directly read the bar code information of measured object, can adapt to the needs of big commercial production and management by the printer output test result after detection is finished.
Description of drawings
Fig. 1 is the structural representation of vehicle fuel steam adsorption/desorption device;
Fig. 2 is the structured flowchart of existing gas absorption desorption apparatus test macro;
Fig. 3 is the structured flowchart of gas absorption desorption apparatus test macro of the present invention.
Among the figure:
1: filtrator 2: pressure regulator valve
3: tensimeter 4: electric Proportion valve
5: vacuum generator 6: the laminar flow pipe
7: differential pressure pick-up 8: gas tank
9: gas collection piece 10: temperature sensor
11: pressure transducer 12: canister
13: fuel tank 14: industrial computer
15: bar code reader 16: printer
17: canister desorption mouth 18: canister adsorption orifice
19: canister atmospheric air port 20: vacuum pump
21: flowmeter 22: the engine mouth
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 3, the utility model gas absorption desorption apparatus test macro comprises: prime regulator, automatic flow are regulated and desorption performance pick-up unit and product bar code input and data output device; Described prime regulator comprises: be connected to filtrator 1, pressure regulator valve 2, tensimeter 3 on the gas piping in turn; Described automatic flow is regulated and the desorption performance pick-up unit comprises: the electric Proportion valve 4 that two ends are connected with vacuum generator 5 with tensimeter 3 respectively, the vacuum generator 5 that two ends are connected with laminar flow pipe 6 with electric Proportion valve 4 respectively, the laminar flow pipe 6 that two ends are connected with gas tank 8 with vacuum generator 5 respectively, the gas tank 8 that two ends are connected with gas collection piece 9 with laminar flow pipe 6 respectively, the differential pressure pick-up 7 that two ends are connected with industrial computer 14 with laminar flow pipe 6 respectively, the temperature sensor 10 that two ends are connected with industrial computer 14 with gas collection piece 9 respectively, the pressure transducer 11 that two ends are connected with industrial computer 14 with gas collection piece 9 respectively and respectively with temperature sensor 10, differential pressure pick-up 7, the industrial computer 14 that pressure transducer 11 is connected; Input of described product bar code and data output device comprise: barcode reader 15 that is connected with industrial computer 14 and printer 16 respectively.
The course of work to the utility model gas absorption desorption apparatus test macro is illustrated below: before testing, the canister desorption mouth 17 of tested gas absorption desorption apparatus-canister 12 is connected with the outlet of gas collection piece 9, the canister adsorption orifice 18 of canister 12 is connected with automotive oil tank 13, the canister atmospheric air port 19 of canister 12 is connected with extraneous air.When system energising begins to test, at first filter out impurity and moisture by filtrator 1 from the pressure-air of source of the gas, utilize pressure regulator valve 2 that air pressure is adjusted to setting value, tensimeter 3 shows current set pressure; Meanwhile, vacuum generator 5 generations are carried out desorption and are tested needed negative pressure, thereby make pressure-air in the prime regulator flow through successively electric Proportion valve 4, vacuum generator 5, laminar flow pipe 6, gas tank 8, gas collection piece 9, canister desorption mouth 17 by canister 12 flows into canister 12 then, in passing through the process of canister 12, make the fuel-steam desorption that is stored in the acticarbon, and flow out from canister desorption mouth 17 together; Meanwhile, the temperature sensor 10 that is connected with gas collection piece 9 sends the temperature signal of pressure-air in real time to industrial computer 14, industrial computer 14 is according to the temperature signal and the differential pressure signal that receive, handle through temperature compensation and closed-loop control, to the analog voltage signal of a 1-5V of electric Proportion valve 4 outputs, make electric Proportion valve 4 flow of control pressure-air automatically in real time; The differential pressure pick-up 7 that is connected with laminar flow pipe 6 sends the differential pressure signal of pressure-air in real time to industrial computer 14, this differential pressure signal is a detected parameters of representing flow value; Meanwhile, the pressure transducer 11 that is connected with gas collection piece 9 sends the pressure signal of pressure-air in real time to industrial computer 14, and the force value of the pressure signal representative of pressure-air also is a detected parameters; Described barcode reader 15 is used for reading the bar code of device to be measured, and sends the bar code information that reads to industrial computer 14, and industrial computer 14 is selected the product test parameter automatically according to the bar code information that receives; Printer 16 is used for flow and pressure test result are printed on the paper.
Claims (1)
1. a gas absorption desorption apparatus test macro is characterized in that: comprising: prime regulator, automatic flow adjusting and desorption performance pick-up unit and product bar code input and data output device; Described prime regulator comprises: be connected to filtrator (1), pressure regulator valve (2), tensimeter (3) on the gas piping in turn; Described automatic flow is regulated and the desorption performance pick-up unit comprises: the electric Proportion valve (4) that two ends are connected with vacuum generator (5) with tensimeter (3) respectively, the vacuum generator (5) that two ends are connected with laminar flow pipe (6) with electric Proportion valve (4) respectively, the laminar flow pipe (6) that two ends are connected with gas tank (8) with vacuum generator (5) respectively, the gas tank (8) that two ends are connected with gas collection piece (9) with laminar flow pipe (6) respectively, the differential pressure pick-up (7) that two ends are connected with industrial computer (14) with laminar flow pipe (6) respectively, the temperature sensor (10) that two ends are connected with industrial computer (14) with gas collection piece (9) respectively, the pressure transducer (11) that two ends are connected with industrial computer (14) with gas collection piece (9) respectively and respectively with temperature sensor (10), differential pressure pick-up (7), the industrial computer (14) that pressure transducer (11) is connected; Input of described product bar code and data output device comprise: barcode reader (15) that is connected with industrial computer (14) and printer (16) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320130809 CN2662226Y (en) | 2003-12-29 | 2003-12-29 | Gas adsorption and desorption apparatus test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320130809 CN2662226Y (en) | 2003-12-29 | 2003-12-29 | Gas adsorption and desorption apparatus test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2662226Y true CN2662226Y (en) | 2004-12-08 |
Family
ID=34350124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320130809 Expired - Lifetime CN2662226Y (en) | 2003-12-29 | 2003-12-29 | Gas adsorption and desorption apparatus test system |
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| Country | Link |
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| CN (1) | CN2662226Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241781A (en) * | 2015-11-13 | 2016-01-13 | 柳州舜泽尔汽车零部件有限公司 | Detection device and detection method for car carbon tank butane working capacity |
| CN109209684A (en) * | 2018-08-01 | 2019-01-15 | 上海机动车检测认证技术研究中心有限公司 | A kind of canister desorption detection device |
| CN110361198A (en) * | 2019-06-25 | 2019-10-22 | 中国第一汽车股份有限公司 | Flow Fault detection device, method and vehicle is desorbed in vehicle evaporative emissions system |
| CN110617956A (en) * | 2019-10-21 | 2019-12-27 | 山西汾西重工有限责任公司 | Coiling aging executing mechanism of constant force spring for mechanical time delay switch |
| CN110793785A (en) * | 2019-11-21 | 2020-02-14 | 中国汽车技术研究中心有限公司 | Test device for calibrating desorption control strategy of automobile activated carbon canister |
| CN111103148A (en) * | 2019-12-18 | 2020-05-05 | 中国第一汽车股份有限公司 | Fuel evaporation system, blockage detection method and vehicle |
| CN112834240A (en) * | 2020-12-31 | 2021-05-25 | 苏州恩都模塑科技有限公司 | Leakage desorption flow test detection system |
-
2003
- 2003-12-29 CN CN 200320130809 patent/CN2662226Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241781A (en) * | 2015-11-13 | 2016-01-13 | 柳州舜泽尔汽车零部件有限公司 | Detection device and detection method for car carbon tank butane working capacity |
| CN109209684A (en) * | 2018-08-01 | 2019-01-15 | 上海机动车检测认证技术研究中心有限公司 | A kind of canister desorption detection device |
| CN110361198A (en) * | 2019-06-25 | 2019-10-22 | 中国第一汽车股份有限公司 | Flow Fault detection device, method and vehicle is desorbed in vehicle evaporative emissions system |
| CN110617956A (en) * | 2019-10-21 | 2019-12-27 | 山西汾西重工有限责任公司 | Coiling aging executing mechanism of constant force spring for mechanical time delay switch |
| CN110617956B (en) * | 2019-10-21 | 2024-05-28 | 山西汾西重工有限责任公司 | Constant force spring winding ageing actuating mechanism for mechanical time-delay switch |
| CN110793785A (en) * | 2019-11-21 | 2020-02-14 | 中国汽车技术研究中心有限公司 | Test device for calibrating desorption control strategy of automobile activated carbon canister |
| CN111103148A (en) * | 2019-12-18 | 2020-05-05 | 中国第一汽车股份有限公司 | Fuel evaporation system, blockage detection method and vehicle |
| CN112834240A (en) * | 2020-12-31 | 2021-05-25 | 苏州恩都模塑科技有限公司 | Leakage desorption flow test detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131229 Granted publication date: 20041208 |