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Carbon canister testing system
Time:2021-10-15 Source:
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Carbon canister testing system



This charcoal canister testing system can simulate the working process of charcoal canisters on motor vehicles according to the requirements of relevant regulations, and perform adsorption, desorption, aging, and pretreatment on charcoal canisters.

Product features:

       It is a specialized testing system for the carbon canister of the car fuel evaporation control device.
       After ten years of practical manufacturing and usage experience, it integrates the advantages of several similar foreign products.
       EST proprietary software and control system
       It can be programmed to operate automatically and manually, ensuring reliable operation.


Test standard:

This carbon canister loading system meets the following standards:
       Chinese National Emission Standard for Light Vehicles GB 18352.5-2013, GB 18352.6-2016
       The Chinese National Motorcycle Evaporative Emission Standard GB 14622-2007, GB 14622-2011, GB 14622-2016
       Chinese National Environmental Protection Industry Standard HJ/T 390-2007
       US Emission Standard EPA Regulation 86.132-96
       American GM Enterprise Standard ORVR
       European Emission Standard V Stage, VI stage

 

Basic configuration of dual traffic system:

High precision quality flow controller suitable for dual flow
       Electronic balance
       Maintenance free vacuum generator
       High sensitivity n-butane alarm system
       Programmable Logic Controller (PLC)
       Desktop computer
       Signal acquisition input/output module
       Specialized software, menu based guided operation
       printer
       Sound and light alarm
       Observation window

 

basic function

It has an independent carbon canister measurement channel and the following functions:
       Initial working capacity testing of charcoal canister
       Testing of the End of Life Capacity of Carbon Cans
       ORVR carbon canister working ability testing
       Determine the critical point of the working carbon canister by measuring the adsorption capacity of the auxiliary carbon canister to reach 2 grams or 0.5 grams;
       Can simulate the setting of loading rate based on operating conditions;
       Capable of simulating the desorption rate under operating conditions;
       Can set the critical point of the working carbon canister arbitrarily;
       Can perform more than 300 adsorption and desorption cycles and can be set arbitrarily;
       Measurement and recording of temperature, humidity, atmospheric pressure, adsorption flow rate, adsorption time, desorption flow rate, desorption time, and the mass of two electronic scales;
       Storage and printing of experimental results.
       Carbon canister ventilation resistance detection
       Desktop computer and EST software CONCORD

 

technical data

Loading parameters:

       Small traffic channel
       Butane loading speed -1 0~2.5 g/min
       Butane loading accuracy ± 1% F.S
       Nitrogen loading rate -1 0~1.25 g/min
       Nitrogen loading accuracy ± 1% F.S

 

High flow channel
       Butane loading speed -20~60 g/min
       Butane loading accuracy ± 1% F.S
       Nitrogen loading rate -20~30 g/min
       Nitrogen loading accuracy ± 1% F.S

 

Air desorption parameters:
       Air desorption flow rate 0~80 SLM
       Desorption accuracy ± 2% F.S

 

Gas distribution unit:

Low flow gas mass flow controller (butane 1/nitrogen 1):
       Full scale flow range: 0~1200SCCM
       Accuracy: ± 1% F.S
       Linearity: ± 0.5-1% F.S
       Repeatability: ± 0.2% F.S
       Response time: ≤ 2sec
       Voltage resistance: 3 Mpa

 

High flow gas mass flow controller (butane 2/nitrogen 2):
       Full scale flow range: 0~25SLM
       Accuracy: ± 1% F.S
       Linearity: ± 0.5-1% F.S
       Repeatability: ± 0.2% F.S
       Response time: ≤ 2sec
       Voltage resistance: 3 Mpa

 

Gas mass flow controller (air)
       Full scale flow range: 0~80SLM
       Accuracy: ± 1% F.S
       Linearity: ± 0.5-1% F.S
       Repeatability: ± 0.2% F.S
       Response time: ≤ 2 sec
       Voltage resistance: 3 MPa

 

Solenoid valve
       Material: Brass
       Standard voltage: AC:230V,-10%/+5%,50/60 Hz
       Protection level: IP65,DIN40050
       Electrical connection: DIN43650 junction box

 

Vacuum generator nozzle diameter: 2.5mm
       Maximum vacuum degree: 85%;
       Maximum suction capacity: 184 l/min
       Air consumption during inhalation: 275l/min
       Work pressure: 6 Bar

 

Differential pressure sensor (ventilation resistance) Differential pressure: 0 – 20KPa
       Accuracy: 0.1% FS
       Output: 4 – 20 mA
       Power Supply: 24 V DC

 

In order to measure the ventilation resistance characteristics of the carbon canister, corresponding hardware such as solenoid valves and pipelines need to be added. Supporting software is also necessary.

 

Detection principle of butane alarm: catalytic combustion type,
       Measurement range: 0-100% LEL;
       Accuracy: ± 3% FS
       Response time: ≤ 30S
       Recovery time: ≤ 30S
       Explosion proof mark (GB3836.8-2003): Exd II CT6

 

Measurement and control unit:

Electronic balance (main carbon canister) weighing range: ≤ 6200g
       Repeatability: ≤ ±0.01g
       Linear: ≤ ±0.02g
       Reading accuracy: 0.01g

 

Electronic balance (auxiliary carbon canister) weighing range: ≤ 3200g
       Repeatability: ≤ ±0.01g
       Linear: ≤ ±0.02g
       Reading accuracy: 0.01g

 

PLC Siemens S7 series
       EST software

 

16 bit input/output module

 

Two stage sound and light alarm, promptly cut off the main power supply
       Explosion proof power plug

 

Power supply 220V ± 10%, 50Hz, three wire

Rated power 800W

Connect explosion-proof safety socket

Protection level (IEC60529) IP 22

Gas interface metal quick connect port

The equipment weighs approximately 260kg

 

 

System centralized control device

 

Mainstream models and configurations in the desktop PC computer market

 

PC control software EST CONCORD

Main functions of the software:

The charcoal canister testing system operates independently,
       Real time monitoring of the status of carbon canister testing process
       Sampling and storage of data during the carbon canister testing process
       Calculate the working capacity of the carbon canister
       Query and export historical data of carbon canister testing
       Calculation and comparison of test data
       Generate carbon canister test report

 

printer: A4

 

System operating conditions

 

Environmental temperature 15 to 45 ℃
       Humidity: 10 to 85% r.h.

       Compressed air at 6 bar, oil and water removed
       N-Butane purity ≥ 98%, pressure 1 bar
       Nitrogen purity ≥ 98%, pressure 1 bar




Note: If this system is combined with a fuel vapor generator, GWC can be measured; If butane is used, BWC can be measured.

Contact: Wang Chaofeng (13701191584) Zhao Jiangshun (18600466869)