Fuel supply device and method based on online ammonia cracking hydrogen production system
By designing a fuel supply device based on the ammonia online cracking hydrogen production system, using the diaphragm compressor to boost hydrogen gas and remove liquid ammonia through the liquid ammonia separator, the combination of high-pressure injection and low-pressure injection is achieved, and the problem of insufficient pressure and possible knocking of hydrogen produced by the ammonia online cracking is solved, and the economic benefits and stability of the fuel supply system are improved.
Patent Information
- Application Number
- CN202411948302.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-12-27
AI Technical Summary
The hydrogen produced by online cracking of ammonia has a high temperature but a low pressure, which does not meet the pressure required for hydrogen to directly inject into the cylinder, and directly into the cylinder may lead to abnormal combustion such as knocking. The fuel supply system of existing ammonia hydrogen engines requires individual ammonia cylinders and high-pressure hydrogen cylinders, resulting in fast fuel consumption, many times of energy replenishment, and poor economic benefits.
设计一种基于氨在线裂解制氢系统的燃料供应装置，包括发动机本体、车载液氨罐、液氨气化器、氨在线裂解制氢装置、裂解气稳压罐、水冷散热器、隔膜压缩机、风冷散热器、液氨分离器、供气补能装置、小型储气罐组以及ECU。通过隔膜压缩机增压氢气，利用液氨分离器将增压后的液氨除掉，实现引燃燃料高压喷射、主燃料氨的低压喷射，并通过ECU控制供气比例和喷射脉宽，确保过量空气系数在不同工况下保持在合适范围。
It effectively reduces the number of energy replenishment times, improves economic benefits, avoids the knocking phenomenon during direct injection of hydrogen, simplifies the structure of the vehicle-mounted device, and reduces the fuel consumption speed and energy replenishment times.