Vehicle-mounted hydrogen supply system using cryogenic high-pressure hydrogen with energy optimization design
An energy-optimized, high-pressure hydrogen technology, used in power system fuel cells, transport hydrogen technology, electrochemical generators, etc. The effect of non-destructive hydrogen storage time, prolonging service life, reducing design difficulty and cost
Active Publication Date: 2019-10-18
SOUTHEAST UNIV
View PDF12 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, such a primary heat exchange mode may cause the refrigerant (water) to freeze when the hydrogen flow is large and the heat exchange is performed at an extremely low temperature, which will affect the heat exchange efficiency and the life of the heat exchange tube.
[0004] When the cryogenic high-pressure composite hydrogen storage technology is used in the vehicle-mounted hydrogen supply system, the above-mentioned fuel cell system applied to liquid hydrogen is more difficult to do
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Such as figure 1 As shown, a vehicle-mounted cryogenic high-pressure hydrogen supply system with an energy optimization design of the present invention includes a cryogenic high-pressure hydrogen storage tank 1, and the cryogenic high-pressure hydrogen storage tank 1 is connected to a low-temperature valve unit 2 that controls pipeline circulation, and It includes a primary heat exchanger 3, a throttling pressure reducing valve 4, a secondary heat exchanger 5, and a pressure regulating valve unit 6 for pressure adjustment, which are sequentially connected to the low temperature valve unit 2. After the pressure regulating valve unit 6, it is connected to the proton The exchange membrane fuel cell system 7 also includes a ribbed heat exchanger 8 in the proton exchange membrane fuel cell system, the heat exchanger 8 is connected to two parallel first flow control v...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention discloses a vehicle-mounted hydrogen supply system using cryogenic high-pressure hydrogen with an energy optimization design, which comprises a cryogenic high pressure hydrogen storage tank. The cryogenic high pressure hydrogen storage tank is connected with a low temperature valve unit. The system also comprises a primary heat exchanger, a throttle pressure-reducing valve and a secondary heat exchanger that are sequentially connected after the low temperature valve unit. The secondary heat exchanger is connected with the valve unit; and the valve unit is connected with aproton exchange membrane fuel cell system. The system also comprises a heat exchanger of the proton exchange membrane fuel cell system, which is connected with the primary heat exchanger, the secondary heat exchanger and the proton exchange membrane fuel cell system. By using the cryogenic high pressure hydrogen storage technology, the invention effectively improves the quality and volume storagedensity of hydrogen, prolongs the lossless hydrogen storage time, increases the service life of the hydrogen storage tank, improves the utilization rate of hydrogen stored in the tank and improves the endurance mileage of a vehicle. When the proton exchange membrane fuel cell system works, the excess heat generated by the cell is used as the energy source of cryogenic high pressure hydrogen heating and depressurization and the energy utilization efficiency of the vehicle-mounted hydrogen supply system is improved.
Description
technical field [0001] The invention relates to the technical field of utilization of cryogenic and high-pressure hydrogen, in particular to a vehicle-mounted cryogenic and high-pressure hydrogen hydrogen supply system with energy optimization design. Background technique [0002] Proton exchange membrane fuel cells have been widely used in fuel cell vehicles. Compared with other types of fuel cells, proton exchange membrane fuel cells have high power density, high energy conversion efficiency, low temperature start and operation, low noise, no pollution, and easy operation. Advantages such as simplicity. However, in actual operation, the thermal efficiency of a proton exchange membrane fuel cell is affected by many factors, including membrane electrodes, operating temperature and humidity, catalyst content, and magazine concentration. Affected by activation polarization, ohmic polarization and concentration polarization, its actual thermal efficiency is generally 45% to 60...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04082H01M8/04089H01M8/04701H01M8/04746H01M8/1007B60L50/70
CPCH01M8/1007H01M8/04201H01M8/04089H01M8/04104H01M8/04708H01M8/04753B60L50/70H01M2250/20Y02T90/40
Inventor 倪中华徐展严岩刘雨农
Owner SOUTHEAST UNIV