Hydrogen-oxygen combustion-supporting auxiliary system for petrochemical fuel internal combustion engine

Abstract

The application discloses a hydrogen-oxygen combustion-supporting auxiliary system for a petrochemical fuel internal combustion engine, which comprises a liquid storage tank, a liquid level sensor is installed on the left side of the inner wall of the liquid storage tank, an electrolysis connecting assembly is arranged on the top of the liquid storage tank, the electrolysis connecting assembly is used for electrolyzing hydrogen and oxygen, and a gas-liquid separation filter assembly is arranged on the electrolysis connecting assembly. Through the arrangement of the electrolysis connecting assembly, safe and stable electrolysis of hydrogen and oxygen is realized, a proton exchange film separates the electrolysis shell into two independent reaction cavities, explosion safety hazards caused by hydrogen and oxygen mixing are avoided from the root, an electrolyte circulating structure formed by a pump body, a suction pipe and a discharge pipe cooperates with the liquid level sensor in the liquid storage tank, electrolyte concentration in the electrolysis shell is ensured to be uniform and liquid supply is ensured to be continuous, a safety pressure valve on the electrolysis shell can also realize real-time pressure relief, overpressure in the cavity is avoided, and hydrogen and oxygen can be stably produced according to the optimal combustion-supporting ratio of 2:1.

Description

Technical Field

[0001] This invention relates to the field of hydrogen-oxygen combustion technology, specifically to a hydrogen-oxygen combustion auxiliary system for petrochemical fuel internal combustion engines. Background Technology

[0002] As the core power component, the petrochemical fuel internal combustion engine works by burning petrochemical fuel in the combustion chamber to release heat energy and drive the piston to do work.

[0003] Traditional petrochemical fuel internal combustion engines have unavoidable technical defects in actual use. Incomplete combustion of fuel in the combustion chamber is a common problem, which not only causes a large waste of petrochemical fuel, but also produces pollutants such as carbon particles, carbon monoxide, and nitrogen oxides, exacerbating environmental emission pressure. At the same time, internal combustion locomotives under the China VI emission standard are prone to excessive carbon particle accumulation in the exhaust system, which leads to frequent regeneration of the exhaust gas treatment system, significantly increasing the use and maintenance costs of the equipment. Simply optimizing the structure of the internal combustion engine body is difficult to achieve a balance between fuel saving and emission reduction and power maintenance.

[0004] To address the aforementioned issues, existing technologies employ improved solutions that use water electrolysis to produce hydrogen and oxygen to assist internal combustion engines. These attempts to improve combustion efficiency by releasing heat energy through hydrogen combustion and using oxygen for combustion support. However, existing hydrogen-oxygen combustion assistance systems suffer from several specific technical defects, making them difficult to practically apply: Firstly, the electrolysis structure lacks an independent hydrogen-oxygen reaction chamber design, leading to easy mixing of hydrogen and oxygen and potential explosion hazards. Furthermore, the circulating electrolyte supply makes it difficult to stabilize the hydrogen-oxygen production and ratio. Secondly, the lack of a dedicated dual-path gas-liquid separation and filtration structure means that the gas generated by electrolysis carries electrolyte droplets and impurities, making direct delivery prone to damage. The system suffers from several drawbacks: firstly, it causes damage to components such as spark plug carbon buildup and fuel injector blockage in internal combustion engines; secondly, it lacks a tiered structure for low-pressure purification and temporary storage of hydrogen and oxygen, and high-pressure storage, with storage containers lacking precise pressure monitoring and safety relief components, resulting in poor gas storage stability and insufficient safety protection; and thirdly, the transmission structure between high-pressure storage and the internal combustion engine is incomplete, lacking dedicated flow control and backfire prevention components, making it impossible to adjust the gas delivery volume according to different engine operating conditions, and also prone to problems such as high-pressure gas impacting precision components of the internal combustion engine. Therefore, we provide a hydrogen-oxygen combustion assistance system for petrochemical fuel internal combustion engines. Summary of the Invention

[0005] The purpose of this invention is to provide a hydrogen-oxygen combustion-assisted system for petrochemical fuel internal combustion engines, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen-oxygen combustion assist system for a petrochemical fuel internal combustion engine, comprising a liquid storage tank, a liquid level sensor installed on the left side of the inner wall of the liquid storage tank, an electrolysis connection assembly disposed on the top of the liquid storage tank, the electrolysis connection assembly being used to electrolyze hydrogen and oxygen, a gas-liquid separation and filtration assembly disposed on the electrolysis connection assembly, the gas-liquid separation and filtration assembly being used to separate liquid from gas and filter impurities in gas, and a high-pressure storage and transmission assembly disposed on the gas-liquid separation and filtration assembly, the high-pressure storage and transmission assembly being used to transmit the stored hydrogen and oxygen for combustion assistance.

[0007] Optionally, the electrolysis connection assembly includes an electrolysis shell, which is installed on top of the storage tank. A proton exchange membrane is installed at the midpoint of the inner wall of the electrolysis shell through a sealing ring. The proton exchange membrane divides the electrolysis shell into two independent reaction chambers, one on the left and one on the right. The reaction chamber on the left is used to generate hydrogen, and the reaction chamber on the right is used to generate oxygen. Insulating frames are installed on both sides of the inner wall of the electrolysis shell, and platinum-iridium coated titanium electrodes are installed on the insulating frames.

[0008] Optionally, a pump body is installed on the back of the electrolytic shell, the bottom of the pump body is connected to the liquid storage tank through a suction pipe, and the top of the pump body is connected to a connector through a pipe. The connector is fixedly connected to the electrolytic shell on the side near the electrolytic shell.

[0009] Optionally, both sides of the connector are connected to the electrolytic shell via discharge pipes. The bottom of both sides of the electrolytic shell is equipped with discharge pipes that communicate with each other. The end of the discharge pipe near the liquid storage tank is connected to the liquid storage tank. Both sides of the top of the electrolytic shell are equipped with safety pressure valves that communicate with each other.

[0010] Optionally, the gas-liquid separation and filtration assembly includes two gas-liquid separation shells, which are respectively arranged on the left and right sides of the electrolysis shell. The side of the gas-liquid separation shell closest to the electrolysis shell is fixedly connected by a reinforcing plate, and the bottom of the gas-liquid separation shell is connected to the liquid storage tank through a return pipe.

[0011] Optionally, a first filter cotton is installed on the inner wall of the gas-liquid separation shell via a bracket, and an air inlet pipe is installed on the gas-liquid separation shell and communicates with it. The end of the air inlet pipe near the electrolysis shell is connected to the electrolysis shell, and a filter shell is installed on the top of the gas-liquid separation shell.

[0012] Optionally, a filter screen is installed on the inner wall of the filter housing, a primary storage gas cylinder is installed on the top of the filter housing, a first pressure sensor is installed on the primary storage gas cylinder, the probe of the first pressure sensor penetrates the primary storage gas cylinder and extends into its interior at one end near the primary storage gas cylinder, a second filter cotton is installed on the inner wall of the primary storage gas cylinder by a bracket, and a gas guide pipe communicating with the primary storage gas cylinder is installed on the top of the primary storage gas cylinder, and a one-way valve is provided on the gas guide pipe.

[0013] Optionally, the high-pressure storage and transmission assembly includes two secondary high-pressure storage cylinders, which are respectively positioned above two primary storage cylinders. The secondary high-pressure storage cylinders and the primary storage cylinders are fixedly connected by a connecting block.

[0014] Optionally, a second pressure sensor is installed on the secondary high-pressure storage cylinder, the bottom of which penetrates through the secondary high-pressure storage cylinder and extends into it. A high-pressure safety valve connected to the secondary high-pressure storage cylinder is installed on the secondary high-pressure storage cylinder, and a transmission pipe connected to the secondary high-pressure storage cylinder is installed on the top of the secondary high-pressure storage cylinder. A high-pressure solenoid control valve, a high-pressure flashback preventer, and a high-pressure check valve are respectively installed on the transmission pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves safe and stable electrolysis of hydrogen and oxygen by setting up an electrolysis connection component. The proton exchange membrane divides the electrolysis shell into two independent reaction chambers, fundamentally avoiding the explosion safety hazard caused by the mixing of hydrogen and oxygen. The electrolyte circulation structure composed of the pump body, suction pipe, and discharge pipe, together with the liquid level sensor in the storage tank, ensures that the electrolyte concentration in the electrolysis shell is uniform and the liquid supply is continuous. The safety pressure valve on the electrolysis shell can also release pressure in real time to avoid overpressure in the chamber and ensure that hydrogen and oxygen are stably produced at the optimal combustion ratio of 2:1.

[0016] 2. This invention achieves efficient purification of hydrogen and oxygen gas and recovery of electrolyte by setting up dual independent gas-liquid separation and filtration components. The two gas-liquid separation shells are set up separately for hydrogen and oxygen circuits. After multi-stage filtration by the first filter cotton, filter screen and second filter cotton, electrolyte droplets and impurities in the gas can be completely removed, avoiding the entry of impurity gas into the internal combustion engine, which may cause damage to components such as spark plug carbon deposits and fuel injector blockage, and extend the service life of the internal combustion engine. The return pipe can return the separated electrolyte to the storage tank for recycling, reducing resource waste. The first pressure sensor on the primary storage gas cylinder and the one-way valve on the gas guide pipe can also realize accurate gas monitoring and backflow prevention under low pressure, ensuring the stability of gas temporary storage.

[0017] 3. This invention achieves safe storage and precise combustion-supporting delivery of hydrogen and oxygen gas by setting up a high-pressure storage and transmission component. The hierarchical design of primary low-pressure storage and secondary high-pressure storage, combined with real-time pressure monitoring by the first and second pressure sensors, realizes closed-loop pressure control of gas storage. The high-pressure safety valve on the secondary high-pressure storage cylinder can realize overpressure relief. The high-pressure electromagnetic control valve, high-pressure backfire preventer, and high-pressure one-way valve on the transmission pipe form multiple safety protections, which not only avoids high-pressure gas impacting the precision components of the internal combustion engine, but also effectively blocks flame backflow and prevents gas backflow. At the same time, the high-pressure electromagnetic control valve can adjust the gas delivery volume according to different engine operating conditions to achieve precise ratio combustion of hydrogen, oxygen and fossil fuels. The precise combustion-supporting effect of hydrogen and oxygen significantly improves the combustion efficiency of fossil fuels, effectively reduces fuel consumption and emissions of pollutants such as carbon particles and carbon monoxide, reduces the number of regeneration times of the internal combustion engine exhaust gas treatment system under the China VI emission standard, and reduces equipment use and maintenance costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the rear view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the electrolytic connection assembly of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the gas-liquid separation and filtration assembly and the high-pressure storage and transmission assembly of the present invention. Figure 6 This is a three-dimensional cross-sectional view of the high-voltage storage and transmission component of the present invention.

[0019] In the diagram: 1. Storage tank; 100. Liquid level sensor; 2. Electrolysis connection assembly; 21. Electrolysis shell; 22. Proton exchange membrane; 23. Insulating frame; 24. Platinum-iridium coated titanium electrode; 25. Pump body; 26. Suction pipe; 27. Connector; 28. Discharge pipe; 29. ​​Feed pipe; 210. Safety pressure valve; 3. Gas-liquid separation and filtration assembly; 31. Gas-liquid separation shell; 32. Reinforcing plate; 33. Return pipe; 34. First filter cotton. 35. Inlet pipe; 36. Filter housing; 37. Filter screen; 38. Primary storage gas cylinder; 39. First pressure sensor; 310. Second filter cotton; 311. Air guide pipe; 4. High-pressure storage and transmission assembly; 41. Secondary high-pressure storage gas cylinder; 42. Connecting block; 43. Second pressure sensor; 44. High-pressure safety valve; 45. Transmission pipe; 46. High-pressure solenoid control valve; 47. High-pressure flashback arrestor; 48. High-pressure check valve. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-6A hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines includes a reservoir 1 for storing electrolyte, which is pure water and 0.5% KOH electrolyte. A filler cap is threaded onto the left side of the top of the reservoir 1. L-shaped mounting blocks are installed on the bottom of both sides of the reservoir 1, with rubber pads affixed to the bottom of the blocks. Mounting holes are provided on the top of both the mounting blocks and the rubber pads. The reservoir 1 is mounted to the vehicle body through these holes and with bolts. A level sensor 100 is installed on the left side of the inner wall of the reservoir 1. The level sensor 100 monitors the electrolyte level in the reservoir 1 in real time. When the level is below 1 / 4 of the total volume, a water replenishment prompt is triggered via the control panel to prevent electrolyte loss. The electrolysis reaction was interrupted due to lack of water. An electrolysis connection assembly 2 is installed on the top of the storage tank 1. The electrolysis connection assembly 2 includes an electrolysis shell 21, which is installed on the top of the storage tank 1. A control panel is installed on the front of the electrolysis shell 21. The electrolysis shell 21 is made of 304 stainless steel with a polytetrafluoroethylene lining. The electrolysis shell 21 provides a sealed space for the electrolysis reaction, separated into two independent reaction chambers by a proton exchange membrane 22 to prevent hydrogen and oxygen mixing, while protecting the internal electrodes and electrolyte. A proton exchange membrane 22 is installed at the midpoint of the inner wall of the electrolysis shell 21 via a sealing ring. The proton exchange membrane 22 allows protons to pass through to achieve the electrolysis reaction, while physically separating hydrogen and oxygen, preventing hydrogen and oxygen mixing at the source. To mitigate the risk of explosion and ensure a 2:1 volume ratio of hydrogen to oxygen, the proton exchange membrane 22 is made of perfluorosulfonic acid proton exchange membrane with a thickness of 0.1-0.2 mm. The proton exchange membrane 22 divides the electrolytic shell 21 into two independent reaction chambers: the left chamber for hydrogen production and the right chamber for oxygen production. Insulating frames 23 are installed on both sides of the inner wall of the electrolytic shell 21, and platinum-iridium coated titanium electrodes 24 are mounted on these frames. These platinum-iridium coated titanium electrodes 24 serve as the core electrodes for the electrolysis reaction, reducing the activation energy for water electrolysis and improving electrolysis efficiency. After energization, they catalyze the decomposition of the electrolyte into hydrogen and oxygen. The platinum-iridium coated titanium electrodes 24 utilize a titanium alloy substrate and platinum... Made of iridium alloy coating, it is installed with positive and negative electrodes. The platinum-iridium coated titanium electrode 24 is equipped with a terminal. The end of the terminal near the electrolytic shell 21 passes through the electrolytic shell 21 and extends to the outside to connect with the output terminal of the vehicle power adapter. The vehicle power adapter includes a voltage detection unit, a current regulation unit and a power control unit. The voltage detection unit collects the operating voltage of the engine under different operating conditions in real time. The current regulation unit adjusts the current value input to the electrolytic shell 21 according to the detected voltage to ensure that the electrolysis efficiency of the electrolytic shell 21 and the hydrogen-oxygen production ratio are stable. The hydrogen-oxygen mixture accounts for 30% of the total fuel for combustion. The contact point between the terminal and the electrolytic shell 21 is sealed with a ceramic sleeve to prevent leakage of electricity and gas.

[0022] A pump body 25 is installed on the back of the electrolytic shell 21. The pump body 25 provides the power for electrolyte circulation, drawing electrolyte from the storage tank 1 and delivering it to the two reaction chambers of the electrolytic shell 21 to ensure uniform electrolyte concentration and avoid localized reduction in reaction efficiency. The bottom of the pump body 25 is connected to the storage tank 1 via a suction pipe 26, and the top of the pump body 25 is connected to a connector 27 via a pipe. The side of the connector 27 closest to the electrolytic shell 21 is fixedly connected to the electrolytic shell 21, and both sides of the connector 27 are connected to the electrolytic shell 21 via discharge pipes 28. The suction pipe 26 delivers electrolyte from the storage tank 1 to the pump body 25, and the discharge pipe 28 delivers electrolyte to the storage tank 1. The feed pipe 28 diverts the electrolyte from the connector 27 to two independent reaction chambers, ensuring smooth and leak-free electrolyte supply. The bottom of both sides of the electrolytic shell 21 is equipped with discharge pipes 29 that are connected to each other. The end of the discharge pipe 29 near the storage tank 1 is connected to the storage tank 1. A valve is installed on the discharge pipe 29 to realize the electrolyte reflux circulation, guiding the electrolyte with uneven concentration in the electrolytic shell 21 back to the storage tank 1. The valve can adjust the reflux speed, and work with the pump body 25 to maintain a stable electrolyte concentration. The top left and right sides of the electrolytic shell 21 are equipped with safety pressure valves 210 that are connected to each other.

[0023] An electrolysis connection assembly 2 is equipped with a gas-liquid separation and filtration assembly 3. The gas-liquid separation and filtration assembly 3 includes two gas-liquid separation shells 31, one on each side of the electrolysis shell 21. The gas-liquid separation shells 31 provide a gas-liquid separation space, allowing electrolyte droplets entrained in the hydrogen and oxygen gas to separate under the impact of gravity and airflow, thus initially purifying the gas. The side of the gas-liquid separation shell 31 closest to the electrolysis shell 21 is fixedly connected by a reinforcing plate 32. The reinforcing plate 32 secures the connection between the gas-liquid separation shell 31 and the electrolysis shell 21, enhancing structural stability and resisting loosening caused by vehicle vibration. The bottom of the gas-liquid separation shell 31 is connected to the liquid storage tank 1 via a return pipe 33. The return pipe 33 connects the gas-liquid separation shell... The electrolyte separated from the gas-liquid separator 31 is returned to the storage tank 1 to achieve electrolyte recycling and reduce resource waste. A first filter cotton 34 is installed on the inner wall of the gas-liquid separator 31 by a bracket. The first filter cotton 34 is made of polytetrafluoroethylene filter cotton with a pore size of 1-5μm. The first filter cotton 34 intercepts most of the electrolyte droplets and coarse impurities entrained in the gas, achieving preliminary gas-liquid filtration and improving gas dryness. An air inlet pipe 35 is installed on the gas-liquid separator 31 and is connected to it. The end of the air inlet pipe 35 near the electrolysis shell 21 is connected to the electrolysis shell 21. The air inlet pipe 35 delivers the hydrogen and oxygen gas generated by the electrolysis shell 21 to the gas-liquid separator 31. A filter shell 36 is installed on the top of the gas-liquid separator 31.

[0024] A filter screen 37 is installed on the inner wall of the filter housing 36. The filter screen 37 is made of 304 stainless steel wire mesh with a filtration accuracy of 5μm and a mesh density of 80-100 mesh. It filters out tiny droplets and impurities remaining in the gas, further improving gas purity and preventing impurities from entering the storage gas cylinder. The bottom of the filter housing 37 is connected to the gas-liquid separation housing 31 through a pipe. A primary storage gas cylinder 38 is installed on the top of the filter housing 36. The primary storage gas cylinder 38 is made of 304 stainless steel and has a design pressure of 0.5MPa. It temporarily stores purified hydrogen and oxygen gas at low pressure, allowing the gas to settle and separate tiny impurities, ensuring the stability of subsequent pressurized storage. The top of the filter housing 36 is connected to the primary storage gas cylinder 38 through a pipe. A first pressure sensor 39 is installed on the primary storage gas cylinder 38. The probe of the first pressure sensor 39 penetrates the primary storage gas cylinder 38 at one end. The gas storage cylinder 38 extends into it. A first pressure sensor 39 monitors the internal pressure of the primary storage gas cylinder 38 in real time and transmits the signal to the electronic control system. When the pressure is below 0.1 MPa, the electrolysis component is triggered to replenish gas production. When the pressure is above 0.3 MPa, electrolysis is suspended. A second filter cotton 310 is installed on the inner wall of the primary storage gas cylinder 38 via a bracket. The second filter cotton 310 is made of activated carbon composite filter cotton with a thickness of 5-8 mm and an adsorption capacity of ≥100 mg / g. It deeply filters the trace amounts of electrolyte vapor and fine particulate matter remaining in the gas, ensuring that the gas purity is ≥99.9%. A gas guide pipe 311 is installed on the top of the primary storage gas cylinder 38 and is connected to it. A one-way valve is installed on the gas guide pipe 311. The one-way valve allows the gas to flow unidirectionally from the primary storage gas cylinder 38 to the secondary high-pressure storage gas cylinder 41, preventing gas backflow and avoiding the mixing of hydrogen and oxygen in the two gas paths.

[0025] A high-pressure storage and transmission assembly 4 is installed on the gas-liquid separation and filtration assembly 3. The high-pressure storage and transmission assembly 4 includes two secondary high-pressure storage cylinders 41, each positioned above a primary storage cylinder 38. The secondary high-pressure storage cylinders 41 are made of 304 stainless steel, designed for a pressure of 3.0 MPa, with a wall thickness of 10-15 mm. They store hydrogen and oxygen gas at a pressure of 1.0-2.0 MPa, providing a stable pressure base for internal combustion engine injection and ensuring gas delivery power. The top of the gas guide pipe 311 connects to the bottom of the secondary high-pressure storage cylinder 41. The secondary high-pressure storage cylinder 41 and the primary storage cylinders 38 are fixedly connected by a connecting block 42. A second pressure sensor 43 is installed on the secondary high-pressure storage cylinder 41, with its bottom penetrating through the cylinder and extending into its interior. The second pressure sensor 43 monitors the internal pressure of the secondary high-pressure storage cylinder 41 in real time and feeds the signal back to the electronic control system. The secondary high-pressure storage cylinder 41 is also equipped with other related devices. The interconnected high-pressure safety valve 44 has a pressure relief threshold of 2.5 MPa. When the pressure inside the secondary high-pressure storage cylinder 41 exceeds the limit, it automatically releases pressure to prevent damage to the cylinder or gas leakage caused by overpressure, thus ensuring the safety of high-pressure storage. The top of the secondary high-pressure storage cylinder 41 is equipped with a transmission pipe 45 that is connected to it. The transmission pipe 45 transports high-pressure hydrogen and oxygen gas from the secondary high-pressure storage cylinder 41 to the combustion chamber of the internal combustion engine. The transmission pipe 45 is equipped with a high-pressure electromagnetic control valve 46, a high-pressure flashback preventer 47, and a high-pressure check valve 48. The high-pressure electromagnetic control valve 46 receives signals from the electronic control system and precisely controls the valve opening and opening timing, adjusting the hydrogen and oxygen injection quantity according to the engine operating conditions. The high-pressure flashback preventer 47 blocks the backflow of flame from the internal combustion chamber to the secondary high-pressure storage cylinder 41, preventing the hydrogen and oxygen from exploding due to flashback under high pressure, thus forming a safety protection barrier. The high-pressure check valve 48 further prevents gas backflow and flashback path, forming a double protection with the high-pressure flashback preventer 47, ensuring that high-pressure gas is transported unidirectionally to the combustion chamber.

[0026] In use, the core logic of this system is to dynamically adapt the operating voltage of the engine to different operating conditions through the on-board power adapter, adjust the electrolysis current to stabilize the production of hydrogen and oxygen, and then precisely inject them for combustion support after separation, filtration, and graded storage. The following examples, combined with two mainstream on-board voltage scenarios, explain in detail the matching relationship between engine operating voltage and electrolytic hydrogen production and the system workflow: Example 1 It is compatible with 12V automotive gasoline engines with a displacement of 1.5-2.0L. The rated output voltage of the DC generator of a 12V automotive gasoline engine is 12V. During operation, the voltage fluctuates between 13.5-14.5V depending on the operating conditions. The voltage adaptation range of the vehicle power adapter is 12V±1.5V. The voltage detection unit captures the voltage signal in real time and links with the current adjustment unit to achieve dynamic matching of electrolysis parameters, ensuring a stable hydrogen-oxygen production at a volume ratio of 2:1, and the hydrogen-oxygen mixture accounts for 30% of the total fuel for combustion.

[0027] Under idling conditions, with an engine speed of 600-800 r / min and an engine operating voltage of 13.5-13.8V, the voltage detection unit transmits the signal to the current regulation unit, adjusting the current input to the platinum-iridium coated titanium electrode 24 to 5-8A. The electrolysis power of the electrolysis shell 21 is 67.5-110.4W. At this time, the pump body 25 starts, drawing electrolyte from the storage tank 1 through the suction pipe 26, and delivering it to the two independent reaction chambers on the left and right through the connector 27 and the discharge pipe 28. The proton exchange membrane 22 isolates hydrogen and oxygen. The left reaction chamber continuously produces hydrogen, and the right chamber produces oxygen. The total hydrogen and oxygen production is 0.5-0.8 L / min. The gas generated by electrolysis carries a small amount of electrolyte droplets and enters the corresponding gas-liquid separation shell 31 through the intake pipe 35. The first filter cotton 34 separates most of the electrolyte. The separated electrolyte is returned to the storage tank 1 via the return pipe 33 for recycling. The gas continues to rise through the filter screen 37 of the filter shell 36 and the second filter cotton 310 of the primary storage gas cylinder 38 for multi-stage purification, achieving a purity of over 99.9%. At this time, the first pressure sensor 39 monitors the pressure of the primary storage gas cylinder 38 as 0.1 MPa. The purified gas enters the secondary high-pressure storage gas cylinder 41 through the one-way valve of the gas guide pipe 311. When the pressure rises to 1.0 MPa, the pressurization stops. According to the signal from the gasoline engine ECU, the electronic control system controls the high-pressure solenoid control valve 46 on the transmission pipe 45 to open slightly. During the intake stroke, the hydrogen-oxygen mixture is atomized and injected into the combustion chamber at a ratio of 30% to burn together with gasoline, achieving fuel savings of over 15%.

[0028] Under medium load conditions, with a speed of 1500-2500 r / min, the engine operating voltage is increased to 14.0-14.2V, the current regulating unit adjusts the electrolysis current to 10-15A, the electrolysis power to 140-213W, the total hydrogen and oxygen production is increased to 1.0-1.5L / min, the pressure of the primary storage cylinder 38 is maintained at 0.2MPa, the pressure of the secondary high-pressure storage cylinder 41 is increased to 1.5MPa, the opening of the high-pressure solenoid control valve 46 is increased, and the hydrogen and oxygen injection volume is increased simultaneously, always maintaining a 30% combustion support ratio to meet the engine's medium load power requirements, and carbon particulate emissions are reduced by 60%.

[0029] Under high load conditions, with an engine speed of 3000-4000 r / min and an engine operating voltage of 14.2-14.5V, the current regulating unit adjusts the electrolysis current to 15-20A, the electrolysis power to 213-290W, and the total hydrogen and oxygen production to 1.5-2.0L / min. The pressure of the primary storage cylinder 38 is 0.3MPa, and the pressure of the secondary high-pressure storage cylinder 41 is increased to 2.0MPa. The high-pressure electromagnetic control valve 46 is fully open, and the hydrogen-oxygen mixture is injected in sufficient quantity. The hydrogen combustion provides high heat, and the oxygen enhances the combustion completeness, ensuring high engine power output while reducing gasoline consumption by 40% and avoiding the impact of high-pressure gas on the precision components of the combustion chamber.

[0030] Example 2 It is compatible with 24V automotive diesel engines with a displacement of 3.0-4.0L. The rated output voltage of the DC generator of the 24V automotive diesel engine is 24V, and the operating voltage fluctuates between 27-29V. The voltage adaptation range of the vehicle power adapter is 24V±3.0V. It also achieves stable combustion based on the linkage logic of voltage, current and gas production.

[0031] Under idling conditions, with an engine speed of 500-700 r / min, an engine operating voltage of 27.0-27.6V, the current regulating unit outputs an electrolysis current of 3-5A, an electrolysis power of 81-138W, and a total hydrogen-oxygen production of 0.8-1.2L / min. The primary storage cylinder (38) has a pressure of 0.15MPa, and the secondary high-pressure storage cylinder (41) has a pressure of 1.2MPa. A 30% hydrogen-oxygen mixture is injected at the beginning of the power stroke, resulting in more complete diesel combustion and reducing the number of regeneration cycles in the exhaust gas treatment system by 80%.

[0032] Under medium load conditions, with a speed of 1200-2000 r / min, engine operating voltage of 28.0-28.4V, electrolysis current adjusted to 6-10A, electrolysis power of 168-284W, total hydrogen and oxygen production of 1.5-2.0L / min, primary storage cylinder 38 with a pressure of 0.25MPa, and secondary high-pressure storage cylinder 41 with a pressure of 1.8MPa, it is suitable for the medium load power requirements of diesel engines and achieves a fuel saving rate of over 30%.

[0033] Under high load conditions, with a speed of 2500-3500 r / min, engine operating voltage of 28.4-29.0V, electrolysis current of 8-12A, electrolysis power of 227-348W, and total hydrogen and oxygen production of 2.0-2.5L / min, the primary storage cylinder 38 has a pressure of 0.3MPa, the secondary high-pressure storage cylinder 41 has a pressure of 2.0MPa, and the high-pressure electromagnetic control valve 46 adjusts the opening as needed to ensure a precise ratio of hydrogen, oxygen, and diesel, which not only ensures no power loss but also significantly reduces pollutant emissions.

[0034] In this system, the safety pressure valve 210 at the top of the electrolysis shell 21 is set with a pressure relief threshold of 0.35 MPa, and the high pressure safety valve 44 of the secondary high pressure storage gas cylinder 41 has a pressure relief threshold of 2.5 MPa. When the voltage is abnormal and the electrolysis pressure exceeds the limit, it will automatically release pressure. The liquid level sensor 100 monitors the liquid level of the storage tank 1 in real time. When it is lower than the preset value, it will trigger a water replenishment prompt. Together with the electrolyte circulation of the pump body 25, it ensures the continuous and stable electrolysis process.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen-oxygen combustion-assisted system for petrochemical fuel internal combustion engines, characterized in that: The system includes a liquid storage tank (1), on which a liquid level sensor (100) is installed on the left side of the inner wall. An electrolysis connection assembly (2) is provided on the top of the liquid storage tank (1). The electrolysis connection assembly (2) is used to electrolyze hydrogen and oxygen. A gas-liquid separation filter assembly (3) is provided on the electrolysis connection assembly (2). The gas-liquid separation filter assembly (3) is used to separate liquid from gas and filter impurities in gas. A high-pressure storage and transmission assembly (4) is provided on the gas-liquid separation filter assembly (3). The high-pressure storage and transmission assembly (4) is used to transmit and assist combustion of stored hydrogen and oxygen.

2. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 1, characterized in that: The electrolytic connection assembly (2) includes an electrolytic shell (21), which is installed on the top of the storage tank (1). A proton exchange membrane (22) is installed at the midpoint of the inner wall of the electrolytic shell (21) through a sealing ring. The proton exchange membrane (22) divides the electrolytic shell (21) into two independent reaction chambers, one on the left and one on the right. The reaction chamber on the left is used to generate hydrogen, and the reaction chamber on the right is used to generate oxygen. Insulating frames (23) are installed on both the left and right sides of the inner wall of the electrolytic shell (21). Platinum-iridium coated titanium electrodes (24) are installed on the insulating frames (23).

3. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 2, characterized in that: A pump body (25) is installed on the back of the electrolytic shell (21). The bottom of the pump body (25) is connected to the storage tank (1) through a suction pipe (26). The top of the pump body (25) is connected to a connector (27) through a pipe. The connector (27) is fixedly connected to the electrolytic shell (21) on the side close to the electrolytic shell (21).

4. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 3, characterized in that: The left and right sides of the connector (27) are connected to the electrolytic shell (21) through the discharge pipe (28). The bottom of the left and right sides of the electrolytic shell (21) is equipped with a discharge pipe (29) that communicates with it. The end of the discharge pipe (29) near the liquid storage tank (1) is connected to the liquid storage tank (1). The left and right sides of the top of the electrolytic shell (21) are equipped with a safety pressure valve (210) that communicates with it.

5. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 4, characterized in that: The gas-liquid separation filter assembly (3) includes a gas-liquid separation shell (31). There are two gas-liquid separation shells (31) and they are respectively arranged on the left and right sides of the electrolysis shell (21). The side of the gas-liquid separation shell (31) closest to the electrolysis shell (21) is fixedly connected by a reinforcing plate (32). The bottom of the gas-liquid separation shell (31) is connected to the liquid storage tank (1) through a return pipe (33).

6. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 5, characterized in that: The gas-liquid separation shell (31) has a first filter cotton (34) installed on its inner wall by a bracket. The gas-liquid separation shell (31) has an air inlet pipe (35) connected to it. The end of the air inlet pipe (35) near the electrolysis shell (21) is connected to the electrolysis shell (21). The top of the gas-liquid separation shell (31) has a filter shell (36).

7. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 6, characterized in that: A filter screen (37) is installed on the inner wall of the filter housing (36). A primary storage gas cylinder (38) is installed on the top of the filter housing (36). A first pressure sensor (39) is installed on the primary storage gas cylinder (38). The probe of the first pressure sensor (39) passes through the primary storage gas cylinder (38) and extends into its interior. A second filter cotton (310) is installed on the inner wall of the primary storage gas cylinder (38) by means of a bracket. A gas guide pipe (311) is installed on the top of the primary storage gas cylinder (38) and communicates with it. A one-way valve is provided on the gas guide pipe (311).

8. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 7, characterized in that: The high-pressure storage and transmission component (4) includes two secondary high-pressure storage cylinders (41), which are respectively located above two primary storage cylinders (38). The secondary high-pressure storage cylinders (41) and the primary storage cylinders (38) are fixedly connected by a connecting block (42).

9. The hydrogen-oxygen combustion assist system for petrochemical fuel internal combustion engines according to claim 8, characterized in that: A second pressure sensor (43) is installed on the secondary high-pressure storage cylinder (41). The bottom of the second pressure sensor (43) penetrates through the secondary high-pressure storage cylinder (41) and extends into its interior. A high-pressure safety valve (44) is installed on the secondary high-pressure storage cylinder (41) and communicates with it. A transmission pipe (45) is installed on the top of the secondary high-pressure storage cylinder (41) and communicates with it. A high-pressure electromagnetic control valve (46), a high-pressure flashback preventer (47), and a high-pressure check valve (48) are respectively installed on the transmission pipe (45).

Images