Hydrogen mixing gas inlet device for ammonia gas engine
The modular integrated design of the hydrogen mixing intake device solves the complex problems of the ammonia engine fuel supply system, achieves efficient mixing and supply of hydrogen and ammonia, reduces costs and improves the degree of integration.
Patent Information
- Application Number
- CN202423115376.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing ammonia engine fuel supply system has a complex structure and lacks integration, resulting in high costs.
The hydrogen mixing intake device adopts a modular integrated design, including an intake mixing device and a fuel gas mixing device. The concentration of the mixed gas is measured by a sensor to achieve the mixing and supply of hydrogen and ammonia.
It achieves efficient mixing and supply of hydrogen and ammonia, simplifies the system structure, reduces costs and improves the degree of integration.
Smart Images
Figure CN223424132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, in particular to a hydrogen mixing intake device for an ammonia engine. Background Art
[0002] As fuel consumption and emissions regulations in the automotive industry continue to tighten, countries around the world are conducting research on various carbon-free energy sources to reduce carbon emissions from internal combustion engines and achieve the "dual carbon" goals. Currently, mainstream carbon-free energy sources include hydrogen and ammonia. Because ammonia is difficult to ignite, mixing it with a certain amount of hydrogen as an ignition agent is an effective solution.
[0003] However, the engine is equipped with two independent fuel supply systems for ammonia and hydrogen, and hydrogen is usually supplied by direct injection into the cylinder, which makes the entire system structure relatively complex and expensive. Therefore, how to achieve system integration has become a technical problem that needs to be solved in this field. Utility Model Content
[0004] The technical solution of the utility model is to provide a mixed hydrogen intake device for an ammonia engine, which adopts a modular integrated design solution to solve the problems of complex fuel supply structure and insufficient integration of existing ammonia engines.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model provides a hydrogen mixed intake device for an ammonia engine, comprising an intake mixing device and a gas mixing device, wherein the gas mixing device is arranged on the intake mixing device, and the intake mixing device is provided with a sensor on the end connected to the gas mixing device, and the intake mixing device is provided with a hydrogen intake seat at the end away from the sensor, and an ammonia intake seat is provided at the top of the middle section of the intake mixing device.
[0006] Preferably, the air intake mixing device includes a mixed gas pipe connected to the air intake mixing device, and a gas mixer body connected to the mixed gas pipe, the sensor is arranged on the mixed gas pipe, the ammonia intake seat is arranged at the top of the gas mixer body, and the hydrogen intake seat is arranged at the end of the gas mixer body away from the mixed gas pipe.
[0007] Preferably, a hydrogen and ammonia spacer is provided inside the gas mixer body, and a mixing spoiler is provided at the end of the hydrogen and ammonia spacer close to the mixed gas connecting pipe.
[0008] Preferably, the sensor is provided with a sensor probe, and the end of the sensor probe is located inside the mixed gas connecting pipe.
[0009] Preferably, the intake mixing device includes an intake mixer body and an intake mixer diffuser.
[0010] Preferably, an air intake chamber and a gas intake chamber are provided inside the air intake mixer body, and the mixed gas pipe leads to the gas intake chamber.
[0011] Preferably, the end of the air intake mixer diffusion pipe is connected to the air intake cavity and the gas intake cavity.
[0012] Preferably, the intake mixer diffuser is flared.
[0013] In summary, the present invention has the following beneficial technical effects:
[0014] The utility model provides a hydrogen mixing intake device for an ammonia engine, which has the advantages of rapid modularization and integration and can be conveniently installed in the intake pipe of the engine. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model.
[0017] Figure numerals: 100, air intake mixing device; 101, air intake mixer body; 102, air intake mixer diffuser; 111, air intake chamber; 112, gas intake chamber; 113, air and gas mixing chamber; 200, gas mixing device; 201, hydrogen intake seat; 202, ammonia intake seat; 203, hydrogen and ammonia spacer; 204, gas mixer body; 205, mixing spoiler; 206, mixed gas connecting pipe; 211, hydrogen intake chamber; 212, ammonia intake chamber; 213, ammonia and hydrogen first mixing chamber; 214, ammonia and hydrogen second mixing chamber; 300, sensor; 301, sensor probe. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] The present invention discloses an embodiment of a hydrogen mixing and intake device for an ammonia engine, comprising a gas mixing device 200 and an intake mixing device 100. The gas mixing device 200 is provided with a sensor 300. The gas mixing device 200 is used to mix hydrogen and ammonia, and the concentration of hydrogen in the mixer is measured by the sensor 300. The intake mixing device 100 is used to mix air and gas, that is, the mixed ammonia and hydrogen mentioned above.
[0020] The intake air mixing device 100 is assembled from an intake air mixer body 101 and an intake air mixer diffuser 102. The gas mixing device 200 comprises a hydrogen intake seat 201, an ammonia intake seat 202, a hydrogen / ammonia spacer 203, a gas mixer body 204, a mixing spoiler 205, and a mixture pipe 206. A sensor 300 is mounted on the mixture pipe 206 to measure the hydrogen concentration in the mixture. This modular and integrated design allows for easy installation in the engine's intake line, mixing hydrogen, ammonia, and air before introducing them into the engine cylinders.
[0021] The gas mixing device 200 includes a hydrogen inlet seat 201, an ammonia inlet seat 202, a hydrogen and ammonia spacer 203, a gas mixer body 204, a mixing spoiler 205 and a mixed gas pipe 206; the hydrogen and ammonia spacer 203 is installed on the hydrogen inlet seat 201 and then installed as a whole at one end of the gas mixer body 204, at this time, the hydrogen and ammonia spacer 203 extends into the gas mixer body 204; the mixing spoiler 205 is installed into the gas mixer body 204 at the other end of the gas mixer body 204, and then the mixed gas pipe 206 is installed on the end face to fix the mixing spoiler 205; the ammonia inlet seat 202 is installed on the top surface of the gas mixer body 204.
[0022] The intake mixing device 100 includes an intake mixer body 101 and an intake mixer diffuser 102 . The intake mixer diffuser 102 is mounted on the intake mixer body 101 , and one end of the intake mixer diffuser 102 with a small opening extends into the interior of the intake mixer body 101 .
[0023] The gas mixing device 200 is mounted on the intake mixer body 101 of the intake mixing device 100 via the mixed gas pipe 206;
[0024] The following is combined with Figures 1-2 The utility model is described in further detail.
[0025] The utility model discloses a mixed hydrogen intake device for an ammonia engine, referring to Figure 1 The intake mixing device 100 is assembled by an intake mixer body 101 and an intake mixer diffuser 102. The intake mixer body 101 has an air intake cavity 111, which forms a gas intake cavity 112 in combination with the intake mixer diffuser 102. The intake mixer diffuser 102 has an air-gas mixing cavity 113. The gas mixing device 200 is assembled by a hydrogen inlet seat 201, an ammonia inlet seat 202, a hydrogen-ammonia spacer 203, a gas mixer body 204, a mixing spoiler 205, and a mixed gas pipe 206.
[0026] Specifically, the hydrogen-ammonia spacer 203 is installed on the hydrogen inlet seat 201, and a hydrogen inlet cavity 211 is formed therein; the hydrogen-ammonia spacer 203 and the hydrogen inlet seat 201 are assembled into the gas mixer body 204, and the ammonia inlet seat 202 is installed on the top of the gas mixer body 204, together forming an ammonia inlet cavity 212; the mixing spoiler 205 is installed in the gas mixer body 204, and an ammonia-hydrogen first mixing cavity 213 is formed therein; a mixed gas pipe 206 is installed on the end face of the gas mixer body 204 , a second ammonia-hydrogen mixing chamber 214 is formed inside it; the first ammonia-hydrogen mixing chamber 213 is communicated with the second ammonia-hydrogen mixing chamber 214; the air intake mixer body 101 has an air intake chamber 111, the air intake mixer diffuser 102 has an air-gas mixing chamber 113, and the air intake mixer diffuser 102 is installed on the air intake mixer body 101 to form a gas intake chamber 112; the gas mixing device 200 is installed on the air intake mixing device 100, and the second ammonia-hydrogen mixing chamber 214 is communicated with the gas intake chamber 112.
[0027] In a further embodiment, hydrogen enters the gas mixing device 200 from the hydrogen inlet chamber 211, and ammonia enters the gas mixing device 200 from the ammonia inlet chamber 212. The hydrogen and ammonia begin to mix in the ammonia-hydrogen first mixing chamber 213. The mixing spoiler 205 can deflect the preliminary mixed airflow, causing the airflow to rotate in the ammonia-hydrogen second mixing chamber 214, further making the hydrogen and ammonia mixed evenly. At the same time, the sensor probe 301 extends into the ammonia-hydrogen second mixing chamber 214, and can accurately measure the concentration of hydrogen in the mixed gas at this time. After sufficient mixing, the hydrogen and ammonia enter the gas inlet chamber 112, and the air enters from the air inlet chamber 111, and enters the air-gas mixing chamber 113 together with the mixed hydrogen and ammonia to mix to form a final mixed gas, and then enters the engine cylinder.
[0028] In summary, the present invention provides a hydrogen mixing intake device for an ammonia engine, which has the advantages of modularization and integration and can be easily installed in the intake pipe of the engine.
[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. A hydrogen mixed air intake device for an ammonia engine, characterized in that: The invention comprises an intake air mixing device (100) and a gas mixing device (200), wherein the gas mixing device (200) is arranged on the intake air mixing device (100), a sensor (300) is provided on the end of the intake air mixing device (100) connected to the gas mixing device (200), a hydrogen intake seat (201) is provided on the end of the intake air mixing device (100) away from the sensor (300), and an ammonia intake seat (202) is provided on the top of the middle section of the intake air mixing device (100).
2. The hydrogen mixed air intake device for an ammonia engine according to claim 1, characterized in that: The air intake mixing device (100) comprises a mixed gas pipe (206) connected to the air intake mixing device (100), and a gas mixer body (204) connected to the mixed gas pipe (206); the sensor (300) is arranged on the mixed gas pipe (206); the ammonia intake seat (202) is arranged on the top of the gas mixer body (204); and the hydrogen intake seat (201) is arranged at the end of the gas mixer body (204) away from the mixed gas pipe (206).
3. The hydrogen mixed air intake device for an ammonia engine according to claim 2, characterized in that: A hydrogen and ammonia spacer (203) is provided inside the gas mixer body (204), and a mixing spoiler (205) is provided at the end of the hydrogen and ammonia spacer (203) close to the mixed gas connecting pipe (206).
4. A hydrogen mixed air intake device for an ammonia engine according to claim 3, characterized in that: The sensor (300) is provided with a sensor probe (301), and the end of the sensor probe (301) is located inside the mixed gas connecting pipe (206).
5. The hydrogen mixed air intake device for an ammonia engine according to claim 4, characterized in that: The intake air mixing device (100) comprises an intake air mixer body (101) and an intake air mixer diffuser (102).
6. The hydrogen mixed air intake device for an ammonia engine according to claim 5, characterized in that: An air intake chamber (111) and a gas intake chamber (112) are provided inside the air intake mixer body (101), and the mixed gas pipe (206) leads to the gas intake chamber (112).
7. The hydrogen mixed air intake device for an ammonia engine according to claim 6, characterized in that: The end of the air intake mixer diffusion pipe (102) is connected to the air intake cavity (111) and the gas intake cavity (112).
8. The hydrogen mixed air intake device for an ammonia engine according to claim 7, characterized in that: The air intake mixer diffuser (102) is in a flared shape.