An adjustable mixing ratio hydrogen-ammonia hybrid injector

Abstract

The utility model relates to a kind of adjustable hydrogen ammonia fusion injectors of mixing ratio, including injector main body, nozzle head, ammonia inlet connector, first solenoid valve, first valve core, hydrogen inlet connector, second solenoid valve and second valve core;Mixed cavity is enclosed between injector main body and nozzle head, first blind hole and second blind hole are equipped in injector main body, and the bottom of first blind hole and second blind hole is equipped with first injection hole and second injection hole respectively;Ammonia inlet connector is connected with first blind hole, first solenoid valve and first valve core are installed in first blind hole, and first solenoid valve can drive first valve core to move up and down to control the opening and closing and opening degree of first injection hole;Hydrogen inlet connector is connected with second blind hole, second solenoid valve and second valve core are installed in second blind hole, and second solenoid valve can drive second valve core to move up and down to control the opening and closing and opening degree of second injection hole.The hydrogen ammonia fusion injector proposed in the utility model can more timely, more flexible, more large-scale adjustment hydrogen ammonia mixing ratio.

Claims

1. A hydrogen-ammonia fusion injector with adjustable mixing ratio, characterized in that, The device includes an injector body, a nozzle head, an ammonia inlet connector, a first solenoid valve, a first valve core, a hydrogen inlet connector, a second solenoid valve, and a second valve core. The nozzle head is connected to the lower side of the injector body, and a mixing chamber is formed between the lower end of the injector body and the nozzle head. The injector body has a first blind hole and a second blind hole arranged side-by-side, both with their central axes extending vertically. The first blind hole is open at its upper end and has a first spray hole communicating with the mixing chamber at its bottom. The second blind hole is also open at its upper end and has a second spray hole communicating with the mixing chamber at its bottom. The ammonia inlet connector is connected to the upper end of the first blind hole. The first solenoid valve and the first valve core are installed in the first blind hole. The first solenoid valve can... The first valve core is driven to move up and down to control the opening and closing of the first nozzle. When the first nozzle is open, ammonia gas input from the first blind hole through the ammonia inlet can be injected into the mixing chamber through the first nozzle. The hydrogen inlet is connected to the upper end of the second blind hole. The second solenoid valve and the second valve core are installed in the second blind hole. The second solenoid valve can drive the second valve core to move up and down to control the opening and closing of the second nozzle. When the second nozzle is open, hydrogen gas input from the second blind hole through the hydrogen inlet can be injected into the mixing chamber through the second nozzle. The lower end of the nozzle head is provided with a third nozzle for outputting gas in the mixing chamber.

2. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 1, characterized in that, The injector body includes a housing and a nozzle seat. The nozzle head is detachably connected to the injector body. The nozzle seat is clamped between the housing and the nozzle seat. The first nozzle and the second nozzle are disposed in the nozzle seat.

3. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 1, characterized in that, The first blind hole is a stepped hole, which includes a first large diameter section, a first stepped surface, and a first small diameter section arranged sequentially from top to bottom. The diameter of the first large diameter section is larger than the diameter of the first small diameter section. A first guide sleeve is installed in the first blind hole and supported downward on the first stepped surface. The first valve core is slidably engaged with the first guide sleeve. The first solenoid valve includes a first support sleeve clamped between the first guide sleeve and the ammonia inlet connector, a first coil installed around the periphery of the first support sleeve, a first armature located in the inner cavity of the first support sleeve, and a first spring located between the first armature and the ammonia inlet connector. The first spring presses downward against the first armature, and the first armature is connected to the first valve core.

4. The adjustable mixing ratio hydrogen-ammonia fusion injector according to claim 3, characterized in that, The first guide sleeve is provided with a first connecting hole that connects the inner cavity of the first support sleeve with the first small diameter section, and the inner cavity of the first support sleeve is connected to the ammonia inlet channel in the ammonia inlet connector.

5. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 3, characterized in that, A first sealing ring is provided between the ammonia inlet connector and the first blind hole, and a second sealing ring and a third sealing ring are provided between the first support sleeve and the first blind hole. The second sealing ring is located above the first coil, and the third sealing ring is located below the first coil.

6. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 1, characterized in that, The second blind hole is a stepped hole, which includes a second large diameter section, a second stepped surface, and a second small diameter section arranged sequentially from top to bottom. The diameter of the second large diameter section is larger than the diameter of the second small diameter section. A second guide sleeve is installed in the second blind hole and supported downward on the second stepped surface. The second valve core is slidably engaged with the second guide sleeve. The second solenoid valve includes a second support sleeve clamped between the second guide sleeve and the hydrogen inlet connector, a second coil installed around the second support sleeve, a second armature located in the inner cavity of the second support sleeve, and a second spring located between the second armature and the hydrogen inlet connector. The second spring presses the second armature downward, and the second armature is connected to the second valve core.

7. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 6, characterized in that, The second guide sleeve is provided with a second connecting hole that connects the inner cavity of the second support sleeve with the second small diameter section, and the inner cavity of the second support sleeve is connected to the hydrogen inlet channel in the hydrogen inlet connector.

8. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 6, characterized in that, A fourth sealing ring is provided between the hydrogen inlet connector and the second blind hole, and a fifth sealing ring and a sixth sealing ring are provided between the second support sleeve and the second blind hole. The fifth sealing ring is located above the second coil, and the sixth sealing ring is located below the second coil.

9. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 1, characterized in that, The lower end of the first valve core is provided with a first tapered portion whose diameter gradually decreases from top to bottom, and the upper end orifice of the first spray hole is provided with a first flared orifice whose diameter gradually decreases from top to bottom, and the first tapered portion matches the first flared orifice; the lower end of the second valve core is provided with a second tapered portion whose diameter gradually decreases from top to bottom, and the upper end orifice of the second spray hole is provided with a second flared orifice whose diameter gradually decreases from top to bottom, and the second tapered portion matches the second flared orifice.

10. The hydrogen-ammonia fusion injector with adjustable mixing ratio according to claim 1, characterized in that, The lower part of the mixing chamber gradually narrows from top to bottom.

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