QC/T 1208-2024 Hydrogen recirculation blower for fuel cell system
1 Scope
This document specifies the technical conditions, test methods, inspection rules and marking, packaging, transportation and storage requirements of hydrogen recirculation blower for fuel cell system (hereinafter referred to as hydrogen blower).
This document is applicable to Roots hydrogen recirculation blower for fuel cell system, and may serve as a reference for other types of hydrogen recirculation blowers.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 755-2019 Rotating electrical machines - Rating and performance
GB/T 2408-2021 Plastics - Determination of burning characteristics - Horizontal and vertical test
GB/T 2423.3-2016 Environmental testing - Part 2: Testing method - Test Cab: Damp heat, steady state
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h+12h cycle)
GB/T 2423.18-2021 Environmental testing - Part 2: Test methods - Test Kb: Salt mist, cyclic (sodium chloride solution)
GB/T 2423.22-2012 Environmental testing - Part 2: Tests methods - Test N: Change of temperature
GB/T 2423.56-2018 Environmental testing - Part 2: Test methods - Test Fh: Vibration, broadband random and guidance
GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements
GB/T 4208 Degrees of protection provided by enclosure (IP code)
GB/T 6908 Analysis of water used in boil and cooling system - Determination of electrical conductivity
GB/T 13277.1-2008 Compressed air - Part 1: Contaminants and purity classes
GB/T 13277.4-2015 Compressed air - Part 4: Test methods for solid particle content
GB/T 13277.5-2019 Compressed air - Part 5: Determination of oil vapour and organic solvent content
GB/T18488-2024 Drive motor system for electric vehicles
GB/T 18655-2018 Vehicles boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers
GB/T 19951-2019 Road vehicles - Test methods for electrical disturbances from electrostatic discharge
GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2021 Road vehicles - Electrical disturbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2: Electrical loads
GB/T 28046.3-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 3: Mechanical loads
GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 4: Climatic loads
GB/T 30512 Requirements for prohibited substances on automobiles
GB/T 31562 Foundry machinery - Determination method of cleanliness
GB/T 33014.2-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 2: Absorber-lined shielded enclosure
GB/T 33014.4-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI)
GB/T 33014.8-2020 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 8: Immunity to magnetic fields
GB 50800-2012 Technical code for anechoic and semi-anechoic rooms
JB/T 12334-2015 Measuring method for noise of turbochargers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 18488-2024 as well as the following apply.
3.1
hydrogen recirculation blower
mechanical equipment for hydrogen recirculation of fuel cell system
Note 1: Also known as hydrogen blower.
Note 2: It mainly includes pump, motor, controller, wiring harness and installation support part. The pump and motor are generally designed as a whole, and the controller may be designed to be integrated with or separated from the pump and motor.
3.2
pump
mechanical device that converts rotating mechanical energy into pressure energy
3.3
motor
electrical device that converts electrical energy into rotating mechanical energy
Note: A motor is generally used as the main driving device of hydrogen blower for fuel cell system to convert electrical energy into rotating mechanical energy of rotor components.
3.4
controller
device for controlling the energy transmission between the fuel cell system and the motor, which is composed of a control signal interface circuit, a motor control circuit and a drive circuit
3.5
overall efficiency
ratio of the adiabatic compression power to the controller input power when a certain amount of gas (which may be pure gas or mixed gas) is compressed to a specific pressure
Note: The overall efficiency includes pump adiabatic efficiency, mechanical efficiency, motor efficiency and controller efficiency.
3.6
pump adiabatic efficiency
ratio of the adiabatic temperature rise to the actual temperature rise of the gas at the inlet and outlet of the pump after gas compression
Note: The physical meaning of pump adiabatic efficiency is the ratio of the adiabatic compression power to the actual compression power when the gas is compressed to a certain pressure ratio, which represents the proximity between the gas compression process and the isentropic process inside the pump.
3.7
pump volumetric efficiency
ratio of the pump inlet flow to the theoretical flow
Note: It represents the degree of internal leakage of the pump through the rotor gap and the rotor-housing gap during gas compression.
4 Apparatus requirements
All the apparatus used in the tests shall pass the inspection by the metrological department, and their accuracy shall meet those specified in Table 1.
5 Operating modes
5.1 Operating mode 1
In operating mode 1, the hydrogen blower is not energized. The operating mode is classified into the following two types depending on whether it is connected to the wiring harness:
a) operating mode 1.1: the hydrogen blower is not connected to the wiring harness;
b) operating mode 1.2: the fixing method, wiring harness and pipeline connection of the hydrogen blower shall meet the requirements of technical documents for the hydrogen blower products.
