CN115387897A - Hydrogen ignition system for engine and engine assembly - Google Patents
Hydrogen ignition system for engine and engine assembly Download PDFInfo
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- CN115387897A CN115387897A CN202110573727.9A CN202110573727A CN115387897A CN 115387897 A CN115387897 A CN 115387897A CN 202110573727 A CN202110573727 A CN 202110573727A CN 115387897 A CN115387897 A CN 115387897A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 239000001257 hydrogen Substances 0.000 title claims abstract description 144
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 144
- 239000007789 gas Substances 0.000 claims abstract description 94
- 238000009434 installation Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 93
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003385 bacteriostatic effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 4
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 238000007789 sealing Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012372 quality testing Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
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- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
- F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
- F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
- F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention discloses a hydrogen ignition system for an engine and an engine assembly. Ignition includes ignition chamber body, nozzle and spark plug, and this internal ignition chamber that is formed with of ignition chamber to and the one end of ignition chamber body is formed with the gas flow way and the spark plug installation department that communicate with the ignition chamber, and the other end is formed with the orifice that communicates with the ignition chamber. The nozzle is arranged in the gas flow passage, the gas inlet end of the nozzle is communicated with the gas outlet end of the hydrogen supply device, and the gas outlet end of the nozzle faces the ignition cavity. The spark plug is installed on the spark plug installation part, and the ignition head of the spark plug is located in the ignition cavity. One end of the gas channel close to the ignition cavity is provided with a flow guide part, gas flowing out of the nozzle enters the ignition cavity through the flow guide part, and hydrogen can uniformly enter the ignition cavity under the action of the flow guide part. Therefore, the hydrogen ignition system for the engine has the advantage of good ignition performance.
Description
Technical Field
The invention relates to the technical field of fuel engines, in particular to a hydrogen ignition system for an engine and an engine assembly.
Background
The thin combustion technology is a new technology of gasoline engine with great oil saving potential, and the technology adopts redundant air to ensure the full combustion of gasoline. Gasoline is combusted in air, the stoichiometric ratio of air to gasoline is 14.7, the excess air factor is 1, the mass ratio of air to gasoline is greater than 14.7 in the case of lean combustion, and the excess air factor is greater than 1. When the excess air ratio exceeds the easy ignition range of 0.8 to 1.2, there is a problem that ignition is difficult with the conventional ignition system. The high-energy ignition system determines the air-fuel ratio limit of lean combustion, i.e., the leaner the mixture can be ignited the higher the ignition energy. The existing high-energy ignition system mainly adopts a high-energy ignition coil or a precombustion chamber ignition system. The high-energy ignition coil is limited by technical principles, so that great breakthrough is difficult to be made on ignition energy. The ignition system of the precombustion chamber mainly adopts gasoline for ignition, and has the problems that fuel collides walls and residual waste gas is too much to cause abnormal combustion.
Therefore, the conventional ignition system has a problem of poor ignition performance.
Disclosure of Invention
The invention aims to solve the problem of poor ignition performance of an ignition system in the prior art.
In order to solve the technical problem, the invention provides a hydrogen ignition system for an engine, which comprises a hydrogen supply device and an ignition device. Ignition includes ignition chamber body, nozzle and spark plug, and this internal ignition chamber that forms of ignition chamber to and the one end of ignition chamber body is formed with the gas flow channel and the spark plug installation department with ignition chamber intercommunication, and the other end is formed with the orifice with ignition chamber intercommunication. The nozzle is arranged in the gas flow channel, the gas inlet end of the nozzle is communicated with the gas outlet end of the hydrogen supply device, and the gas outlet end of the nozzle faces the ignition cavity and is communicated with the gas flow channel; the spark plug is installed on the spark plug installation part, and the ignition head of the spark plug is positioned in the ignition cavity. And one end of the gas channel close to the ignition cavity is provided with a flow guide part, and gas sprayed into the gas channel from the nozzle enters the ignition cavity through the flow guide part.
By adopting the technical scheme, the ignition device in the embodiment is provided with the flow guide part at one end of the gas flow channel close to the ignition cavity, gas flowing out of the nozzle enters the ignition cavity through the flow guide part, and hydrogen can uniformly enter the ignition cavity under the action of the flow guide part so as to ensure that the ignition cavity can normally burn.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, wherein the gas flow channel is provided as an annular hole extending along a circumferential direction of one end of the ignition chamber body, the flow guide portion includes a gas ring fitted with the annular hole, and a plurality of uniformly distributed hole portions are formed on the gas ring. Wherein, gas ring detachably fixed connection is in the inner wall of ignition chamber, is located the gas flow channel and is close to the one end in ignition chamber, and the gas that spouts into the gas flow channel from the nozzle passes through the hole portion and gets into in the ignition chamber.
By adopting the technical scheme, the gas ring and the upper hole part of the gas ring are designed, so that hydrogen can be uniformly distributed in the ignition chamber cavity, and the ignition performance of the hydrogen ignition system for the engine is better realized.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, wherein an end of the hole portion near the ignition chamber faces the center of the annular hole.
By adopting the technical scheme, the hole part faces to the center of the annular hole, so that the nozzle can inject hydrogen to the peripheral side of the spark plug when the spark plug ignites, and the ignition performance of the hydrogen ignition system for the engine is further improved.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, wherein a seal portion is provided between a spark plug and a spark plug mounting portion.
By adopting the technical scheme, the sealing part can ensure the sealing performance of the spark plug and the gas flow passage, and the leakage of the gas in the ignition chamber body is avoided.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, the hydrogen supply device including a hydrogen generation part and a pressure increasing part. The gas inlet end of the pressurizing component is connected with the gas outlet end of the hydrogen generating component through a pipeline, and the gas outlet end of the pressurizing component is connected with the gas inlet end of the nozzle through a pipeline.
By adopting the technical scheme, the hydrogen generating component can provide hydrogen for the ignition device, and the pressurizing component can improve the concentration of the hydrogen and further improve the ignition performance of the hydrogen ignition system for the engine.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, the hydrogen generating part comprising an electrolyzed water reactor and a water tank. The water outlet of the water tank is connected with the water inlet end pipeline of the electrolyzed water reactor, and the air outlet end of the electrolyzed water reactor is connected with the air inlet end pipeline of the pressurizing component.
Adopt above-mentioned technical scheme, compare in other devices, hydrogen generation part sets up to electrolysis water reactor and water tank and can produce oxygen when producing hydrogen, and the proportion of hydrogen and oxygen is the best combustion ratio, need not to increase extra air, when improving this ignition of hydrogen ignition system for engine performance, need not to set up other devices that increase extra air.
Further, another embodiment of the invention provides a hydrogen ignition system for an engine, wherein the water tank is made of a bacteriostatic material, and the water quality detection module is arranged in the water tank.
By adopting the technical scheme, the water tank is made of the antibacterial material, so that the bacteria breeding can be inhibited, and the water in the water tank is prevented from being polluted by impurities attached to the water tank. The setting of water quality testing module can remind the staff to add water or change water, avoids the problem that the water in the water tank becomes less or quality of water is polluted and leads to the inefficiency of hydrogen production.
Further, another embodiment of the invention provides a hydrogen ignition system for an engine, and the water quality detection module comprises a liquid level sensor and a conductivity sensor.
Adopt above-mentioned technical scheme, level sensor can monitor the water level change in the water tank at any time to in remind the user of adding water, conductivity sensor can monitor the muddy degree of water in the water tank at any time, in order to remind the user of changing water. The provision of a level sensor and a conductivity sensor increases the ease of use of the hydrogen ignition system for an engine.
Further, another embodiment of the present invention provides a hydrogen ignition system for an engine, wherein the pressurization component comprises an air pump and a control valve. The control valve is arranged at the air outlet end of the air pump, the air inlet end of the air pump is connected with the air outlet end of the hydrogen generating component through a pipeline, and the air outlet end of the air pump is connected with the air inlet end of the nozzle through a pipeline.
By adopting the technical scheme, the setting of the air pump can ensure that the hydrogen reaches a certain concentration and enters the ignition chamber body again, the setting of the control valve is used for controlling the pressure and the flow of the mixed gas of the hydrogen and the oxygen at the outlet end of the air pump, and the setting of the air pump and the control valve further improves the ignition performance of the hydrogen ignition system for the engine.
The invention also provides an engine assembly which comprises an engine body and the hydrogen ignition system for the engine, wherein the hydrogen ignition system for the engine is arranged at the combustion chamber of the engine body, and the spray hole is communicated with the combustion chamber.
By adopting the technical scheme, the hydrogen is combusted in the ignition chamber body and sprays the flame, so that the high-energy ignition device has high ignition energy. The electrolytic water reactor simultaneously generates hydrogen and oxygen, and the hydrogen and the oxygen are mixed and sprayed into the ignition chamber body, do not need additional air and are in the best combustion ratio. The electrolyzed water reactor can produce hydrogen on line, a user only needs to add water, and in addition, the hydrogen production method of the electrolyzed water reactor can avoid the danger caused by excessive hydrogen remaining in the ignition chamber body of the engine due to the flammable and explosive hydrogen. The nozzle can realize the scavenging function inside the ignition chamber body, and no tail gas is left inside the ignition chamber body, so that the ignition is more reliable. Therefore, the engine assembly comprising the hydrogen ignition system for the engine has better ignition performance.
The invention has the beneficial effects that:
the invention provides a hydrogen ignition system for an engine, which comprises a hydrogen supply device and an ignition device. The ignition device is provided with the diversion part at one end of the gas channel close to the ignition cavity, gas flowing out of the nozzle enters the ignition cavity through the diversion part, and hydrogen can uniformly enter the ignition cavity under the action of the diversion part so as to ensure that the ignition cavity can normally burn. The hydrogen supply device comprises a hydrogen generating component and a pressurizing component, wherein the hydrogen generating component is arranged into an electrolyzed water reactor and a water tank, the proportion of hydrogen and oxygen generated by electrolyzed water is the optimal combustion proportion, and additional air is not required to be added. The pressurizing member can ensure the pressure and concentration of hydrogen. Therefore, the hydrogen ignition system for the engine has the advantage of good ignition performance.
Additional features and corresponding advantages of the invention are set forth in the description which follows, and it is understood that at least some of the advantages will be apparent from the description of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen ignition system for an engine according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an ignition device of a hydrogen ignition system for an engine according to embodiment 1 of the present invention.
Description of reference numerals:
100: an ignition device;
110: an ignition chamber body; 111: spraying a hole; 112: a gas ring; 113: a hole portion; 114: an ignition chamber; 115: a spark plug mounting portion; 116: a gas flow channel;
120: a nozzle;
130: a spark plug;
200: a hydrogen generating component; 211: an electrolytic water reactor; 212: a water tank;
300: an air pump.
Detailed Description
The following description is given by way of example of the present invention and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are included to provide a thorough understanding of the invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been omitted from the description in order not to obscure or obscure the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following description is given by way of example of the present invention and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are included to provide a thorough understanding of the invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1:
the present embodiment provides a hydrogen ignition system for an engine, as shown in fig. 1 to 2, including a hydrogen supply device and an ignition device 100. The ignition device 100 includes an ignition chamber body 110, a nozzle 120 and a spark plug 130, an ignition cavity 114 is formed in the ignition chamber body 110, and a gas flow passage 116 and a spark plug mounting portion 115 communicated with the ignition cavity 114 are formed at one end of the ignition chamber body 110, and a nozzle hole 111 communicated with the ignition cavity 114 is formed at the other end. The nozzle 120 is disposed in the gas flow channel 116, and an air inlet end of the nozzle 120 is communicated with an air outlet end of the hydrogen gas supply device, and the air outlet end of the nozzle 120 faces the ignition chamber 114 and is communicated with the gas flow channel 116. The spark plug 130 is mounted on the spark plug mounting portion 115, and a firing head of the spark plug 130 is located in the firing chamber 114. And, a flow guide portion is provided at an end of the gas flow passage 116 near the ignition chamber 114, and the gas injected into the gas flow passage 116 from the nozzle 120 enters the ignition chamber 114 through the flow guide portion.
Specifically, the hydrogen ignition system for the engine further comprises a control button, wherein the control button is arranged on an instrument panel and used for controlling the on and off of the hydrogen supply device. The hydrogen supply device can be configured as a hydrogen storage device, and when ignition is required, the control button is pressed, hydrogen is injected into the ignition cavity 114 through the nozzle 120, and then the ignition process is completed through the spark plug 130.
The hydrogen supply device may also be configured as a hydrogen preparation device, and when ignition is required, the control button is pressed to start the hydrogen preparation device first, then the hydrogen prepared by the hydrogen preparation device is injected into the ignition cavity 114 through the nozzle 120, and then the ignition process is completed through the ignition plug 130.
More specifically, the nozzle 120 and the gas channel 116 may be fixedly connected or detachably connected. If the nozzle 120 is detachably connected to the gas channel 116, a screw connection, a snap connection, or other detachable connection may be adopted, and preferably, in order to ensure the sealing performance and the connection reliability between the nozzle 120 and the gas channel 116, the screw connection is adopted in this embodiment.
More specifically, a sealing ring is disposed between the nozzle 120 and the gas flow passage 116, and the sealing ring may be an NBR nitrile rubber sealing ring, an SIL silicone rubber sealing ring, or a teflon sealing ring. The specific configuration may be set according to actual design and use requirements, and this embodiment does not specifically limit this.
More specifically, the injector 120 may be configured as a solenoid valve, and both injection timing and injection pulse width may be adjusted and controlled, further improving ignition performance of the hydrogen ignition system for the engine.
It should be noted that, in the ignition device 100 of the present embodiment, the flow guiding portion is disposed at one end of the gas flow channel 116 close to the ignition cavity 114, and the gas flowing out from the nozzle 120 enters the ignition cavity 114 through the flow guiding portion, so that the hydrogen gas can equally enter the ignition cavity 114 under the action of the flow guiding portion, so as to ensure that the ignition cavity 114 can be normally combusted.
Further, the present embodiment also provides a hydrogen ignition system for an engine, as shown in fig. 2, the gas flow passage 116 is provided as an annular hole extending along one end of the ignition chamber body 110 in a circumferential direction, the flow guiding portion includes a gas ring 112 fitted with the annular hole, and a plurality of uniformly distributed hole portions 113 are formed on the gas ring 112. Wherein the gas ring 112 is detachably and fixedly connected to the inner wall of the ignition chamber 114 at one end of the gas flow passage 116 near the ignition chamber 114, and the gas injected from the nozzle 120 into the gas flow passage 116 enters the ignition chamber 114 through the hole portion 113.
Specifically, the gas ring 112 may be attached to the inner wall of the ignition chamber 114 by a snap-fit, threaded, or other removable attachment. The specific configuration may be set according to actual design and use requirements, which is not limited in this embodiment.
More specifically, the hole portions 113 may be provided in two, four, six, ten, etc. numbers, which may be specifically set according to actual design and use requirements, and this embodiment is not particularly limited thereto.
It should be noted that the design of gas ring 112 and orifice portion 113 enables the hydrogen to be uniformly distributed in the ignition chamber cavity, and better achieves the ignition performance of the hydrogen ignition system for the engine.
Further, the present embodiment also provides a hydrogen ignition system for an engine, as shown in fig. 2, in which one end of the hole portion 113 near the ignition chamber 114 is directed toward the center of the annular hole.
In addition, hole 113 is directed toward the center of the annular hole, so that nozzle 120 can inject hydrogen gas to the peripheral side of spark plug 130 when spark plug 130 is ignited, and the ignition performance of the hydrogen ignition system for an engine can be further improved.
Further, the present embodiment also provides a hydrogen ignition system for an engine, in which a seal portion (not shown) is provided between the spark plug 130 and the spark plug mounting portion 115.
Specifically, the sealing portion may be provided as a screw thread that is matched with the screw thread between the spark plug 130 and the gas flow passage 116, and the sealing property between the spark plug 130 and the gas flow passage 116 is ensured by the screw thread connection. A seal ring may be provided on the peripheral side of the ignition plug 130 to further improve the sealing property between the ignition plug 130 and the gas flow path 116.
The sealing portion is provided to ensure the sealing property between the ignition plug 130 and the gas flow passage 116, thereby preventing the gas inside the ignition chamber body 110 from leaking.
Further, the present embodiment also provides a hydrogen ignition system for an engine, as shown in fig. 1, the hydrogen supply device includes a hydrogen generating part 200 and a pressurizing part. Wherein, the inlet end of the pressurizing part is connected with the outlet end of the hydrogen generating part 200 by a pipeline, and the outlet end of the pressurizing part is connected with the inlet end of the nozzle 120 by a pipeline.
Specifically, the hydrogen generating part 200 may be configured as an electrolyzed water reactor 211, a water gas reactor, or other devices capable of generating hydrogen, and preferably, the electrolyzed water reactor 211 is selected in this embodiment in order to generate hydrogen without other gases except oxygen required for combustion.
The hydrogen generating means 200 can supply hydrogen to the ignition device 100, and the pressure increasing means can increase the concentration of hydrogen and further improve the ignition performance of the hydrogen ignition system for an engine.
Further, the present embodiment also provides a hydrogen ignition system for an engine, as shown in fig. 1, the hydrogen generation part 200 includes an electrolyzed water reactor 211 and a water tank 212. Wherein, the water outlet of the water tank 212 is connected with the water inlet end pipeline of the electrolyzed water reactor 211, and the air outlet end of the electrolyzed water reactor 211 is connected with the air inlet end pipeline of the pressurizing component.
Specifically, the electric power required by the electrolyzed water reactor 211 may be supplied from an automobile battery, or a battery may be separately provided and charged from the engine. The specific configuration may be set according to actual design and use requirements, and this embodiment does not specifically limit this.
It should be noted that, compared with other devices, the hydrogen generation part 200 is configured to be able to generate oxygen while generating hydrogen by the electrolyzed water reactor 211 and the water tank 212, and the ratio of hydrogen to oxygen is an optimal combustion ratio, and there is no need to add additional air, and there is no need to provide other devices for adding additional air while improving the ignition performance of the hydrogen ignition system for the engine.
Further, this embodiment still provides a hydrogen ignition system for engine, and water tank 212 is made by antibacterial material, and is provided with the water quality testing module in the water tank 212.
Specifically, the bacteriostatic material may be bamboo charcoal material, nano material or other materials. The specific configuration may be set according to actual design and use requirements, and this embodiment does not specifically limit this.
More specifically, the water quality detection module and the water tank 212 may be fixedly connected or detachably connected, preferably, in order to facilitate the detachment and replacement of the water quality detection module, a detachable connection manner is selected in the embodiment, and specifically, the detachable connection manner may be a snap connection, a screw connection, or other detachable connection manners, and the like, and the detachable connection manner may be specifically set according to actual design and use requirements, and the embodiment does not specifically limit the detachable connection manner.
It should be noted that, the water tank 212 is made of a bacteriostatic material, which can inhibit bacteria from growing, and prevent impurities attached to the water tank 212 from polluting water in the water tank 212. The setting of water quality testing module can remind the staff to add water or change water, avoids the problem of the hydrogen manufacturing inefficiency that the water in the water tank 212 becomes less or quality of water is polluted and leads to.
Further, the embodiment also provides a hydrogen ignition system for an engine, and the water quality detection module comprises a liquid level sensor and a conductivity sensor.
Specifically, the liquid level infectors are provided at the open end of the water tank 212, and the liquid level infectors may be provided as a radar liquid level infector, an ultrasonic liquid level infector, a laser liquid level infector, or the like. The specific configuration may be set according to actual design and use requirements, and this embodiment does not specifically limit this.
More specifically, the conductivity sensor electrode type conductivity sensor, the inductive type conductivity sensor, and the ultrasonic conductivity sensor may be specifically set according to actual design and use requirements, which are not specifically limited in this embodiment.
More specifically, the conductivity sensor may be located on a side wall near the bottom of the tank 212, or may be located at the bottom of the tank 212 or elsewhere, it being noted that the conductivity sensor is intended to allow water to be in sufficient contact with the conductivity sensor during use.
It should be noted that the liquid level sensor can monitor the water level change in the water tank 212 at any time so as to remind a user to add water, and the conductivity sensor can monitor the turbidity degree of water in the water tank 212 at any time so as to remind the user to change water. The provision of the level sensor and the conductivity sensor increases the convenience of using the hydrogen ignition system for an engine.
Further, the present embodiment also provides a hydrogen ignition system for an engine, as shown in fig. 1, the pressure increasing component includes an air pump 300 and a control valve. Wherein, the control valve is disposed at the air outlet end of the air pump 300, the air inlet end of the air pump 300 is connected to the air outlet end of the hydrogen generating component 200 through a pipeline, and the air outlet end of the air pump 300 is connected to the air inlet end of the nozzle 120 through a pipeline.
Specifically, the control valve is set as a one-way valve, hydrogen can only enter the ignition chamber body 110 from the air pump 300 through the one-way valve, and hydrogen in the ignition chamber body 110 cannot flow into the air pump 300 from the ignition chamber body 110, so that the danger caused by hydrogen leakage is avoided.
It should be noted that the air pump 300 is arranged to enable the hydrogen to reach a certain concentration and enter the ignition chamber body 110, the control valve is arranged to control the pressure and flow rate of the mixture of hydrogen and oxygen at the outlet of the air pump 300, and the arrangement of the air pump 300 and the control valve further improves the ignition performance of the hydrogen ignition system for the engine.
Example 2:
the present embodiment provides an engine assembly including an engine body, and further including the hydrogen ignition system for an engine in embodiment 1, as shown in fig. 1 to 2 in embodiment 1, the hydrogen ignition system for an engine is installed at a combustion chamber of the engine body, and the nozzle hole 111 communicates with the combustion chamber.
When the engine needs to be ignited, a control button is pressed first, the electrolyzed water reactor 211 is started, hydrogen is prepared, oxygen is generated along with the hydrogen, and the mixing ratio of the generated hydrogen and the oxygen is the optimal combustion ratio. The hydrogen and oxygen are initially stored in the air pump 300, and when the pressure and flow rate of the mixed gas reach the set values of the control valve provided at the outlet of the air pump 300, the mixed gas of hydrogen and oxygen is uniformly injected into the ignition chamber body 110 through the hole part 113, and the exhaust gas in the ignition chamber body 110 is swept out, so that the subsequent ignition process can be performed. Then, the spark plug 130 installed on the ignition chamber body 110 ignites the mixed gas of hydrogen and oxygen inside the ignition chamber body 110, the mixed gas burns to cause the pressure inside the ignition chamber body 110 to rise, the flame is sprayed out from the spray hole 111, the mixed gas of gasoline and air in the main combustion of the engine is ignited, the control button is pressed again after the ignition process is completed, and the electrolyzed water reactor 211 is closed.
It should be noted that. The electrolyzed water reactor 211 simultaneously generates hydrogen and oxygen, the hydrogen and the oxygen are mixed and injected into the ignition chamber body 110, the hydrogen is combusted in the ignition chamber body 110 and is sprayed out of the flame, the ignition energy is higher, in the process, no additional air is needed, and the optimal combustion ratio is achieved. The electrolyzed water reactor 211 can directly produce hydrogen, only water needs to be added by a user, and in addition, the hydrogen production method of the electrolyzed water reactor 211 along with production can avoid the danger caused by excessive hydrogen left in the engine ignition chamber body 110 because the hydrogen is flammable and explosive. The nozzle 120 can perform a scavenging function on the inside of the ignition chamber body 110, and no exhaust gas remains inside the ignition chamber body 110, thereby ensuring more reliable ignition. Therefore, the engine assembly comprising the hydrogen ignition system for the engine has better ignition performance.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments of the invention are not to be considered as limited to these descriptions. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A hydrogen ignition system for an engine, comprising:
a hydrogen gas supply device;
the ignition device comprises an ignition chamber body, a nozzle and a spark plug, wherein an ignition cavity is formed in the ignition chamber body, a gas flow channel and a spark plug installation part which are communicated with the ignition cavity are formed at one end of the ignition chamber body, and a spray hole communicated with the ignition cavity is formed at the other end of the ignition chamber body; wherein the content of the first and second substances,
the nozzle is arranged in the gas flow channel, the gas inlet end of the nozzle is communicated with the gas outlet end of the hydrogen supply device, and the gas outlet end of the nozzle faces the ignition cavity and is communicated with the gas flow channel;
the spark plug is arranged on the spark plug installation part, and an ignition head of the spark plug is positioned in the ignition cavity; and the number of the first and second electrodes,
one end of the gas channel, which is close to the ignition cavity, is provided with a flow guide part, and gas sprayed into the gas channel from the nozzle enters the ignition cavity through the flow guide part.
2. A hydrogen ignition system for an engine according to claim 1, wherein said gas flow passage is provided as an annular hole extending circumferentially along one end of said ignition chamber body, and said flow guide portion comprises a gas ring fitted to said annular hole, said gas ring being formed with a plurality of uniformly distributed hole portions; wherein the content of the first and second substances,
the gas ring is detachably and fixedly connected to the inner wall of the ignition cavity and located at one end, close to the ignition cavity, of the gas flow channel, and gas sprayed into the gas flow channel from the nozzle enters the ignition cavity through the hole part.
3. A hydrogen ignition system for an engine as defined in claim 2, wherein an end of said orifice portion adjacent said ignition chamber is directed toward the center of said annular orifice.
4. A hydrogen ignition system for an engine according to claim 1, characterized in that a seal portion is provided between said spark plug and said spark plug mounting portion.
5. A hydrogen ignition system for an engine according to any one of claims 1 to 4, characterized in that the hydrogen supply means comprises a hydrogen generating part and a pressure increasing part; wherein, the first and the second end of the pipe are connected with each other,
the gas inlet end of the pressurizing part is connected with the gas outlet end of the hydrogen generating part through a pipeline, and the gas outlet end of the pressurizing part is connected with the gas inlet end of the nozzle through a pipeline.
6. A hydrogen ignition system for an engine as claimed in claim 5, wherein said hydrogen generating means comprises an electrolyzed water reactor and a water tank; wherein the content of the first and second substances,
the water outlet of the water tank is connected with the water inlet end pipeline of the electrolyzed water reactor, and the air outlet end of the electrolyzed water reactor is connected with the air inlet end pipeline of the pressurizing component.
7. A hydrogen ignition system for engine as claimed in claim 6, characterized in that said water tank is made of bacteriostatic material and a water quality detection module is arranged in said water tank.
8. A hydrogen ignition system for an engine as defined in claim 7, wherein said water quality detection module includes a level sensor and a conductivity sensor.
9. A hydrogen ignition system for an engine according to claim 5, wherein said pressure increasing means comprises an air pump and a control valve; wherein the content of the first and second substances,
the control valve is arranged at the air outlet end of the air pump, the air inlet end of the air pump is connected with the air outlet end of the hydrogen generating component through a pipeline, and the air outlet end of the air pump is connected with the air inlet end of the nozzle through a pipeline.
10. An engine assembly comprising an engine block, further comprising the hydrogen ignition system for an engine of any one of claims 1 to 9, wherein the hydrogen ignition system for an engine is installed at a combustion chamber of the engine block, and the nozzle hole communicates with the combustion chamber.
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| CN202110573727.9A CN115387897A (en) | 2021-05-25 | 2021-05-25 | Hydrogen ignition system for engine and engine assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110573727.9A CN115387897A (en) | 2021-05-25 | 2021-05-25 | Hydrogen ignition system for engine and engine assembly |
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