Intelligently-controlled liquid oxygen internal combustion engine parallel type catalytic reduction regenerative fuel device

Abstract

The invention relates to an intelligent control liquid oxygen internal combustion engine parallel type catalytic reduction regenerated fuel device which comprises a double-parallel type catalytic reduction regenerated fuel device and an intelligent three-way valve or a three-parallel type catalytic reduction regenerated fuel device and an intelligent four-way valve, an intelligent control system and two sets of sensors. The intelligent control system carries out intelligent comparative analysis and calculation according to data such as temperature, pressure and flow of tail gas at an air inlet and an air outlet of the catalytic reducer and molar mass contents of gases such as carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen and HC in the tail gas, and then accurately determines the optimal fuel injection molar mass of the hydrocarbon fuel nozzle; the intelligent three-way valve or the intelligent four-way valve is controlled to intelligently switch the tail gas to a proper catalytic reducer for catalytic reduction, so that the optimal regeneration rate of regenerated fuel is realized, and the fuel consumption is greatly reduced; the intelligent control system controls the intelligent catalyst replacing device to automatically replace the inactivated catalyst under the condition that the liquid oxygen internal combustion engine does not need to be shut down.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of liquid oxygen internal combustion engine catalytic reduction regenerative fuel, in particular to an intelligent control liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device. BACKGROUND

[0002] The applicant found in the research and development process of the patents with patent publication numbers CN117703573A and CN118188113A that these patents do not have data quantification for the "appropriate amount" of mixing high-temperature exhaust gas with an appropriate amount of hydrocarbon fuel in the catalytic reduction device. Due to the lack of specific data support, it is difficult to intelligently and accurately control the injection amount of the hydrocarbon fuel nozzle, and it is difficult to maximize the catalytic reduction regenerative fuel regeneration rate. Secondly, these patents arrange different temperature-adaptive catalysts in the catalytic reduction device from high-temperature catalysts to low-temperature catalysts along the exhaust gas inlet to the mixed gas outlet of the catalytic reduction device according to the temperature adaptability from high to low as (1) (2) (3) (4) ··· (n) multi-stage combination. Although the multi-stage combination catalyst can improve the catalytic reduction regenerative fuel regeneration rate, it is difficult to collect and store the specific catalytic reduction regenerative fuel reaction data of each catalyst in the actual operation process, so it is difficult to determine the actual catalytic reduction effect of each catalyst, and it is not conducive to the data accumulation and further improvement and research and development of various catalysts. Moreover, different catalysts have different deactivation times, and once a catalyst in the multi-stage combination catalyst is deactivated and replaced, the remaining catalysts must also be replaced. In addition, these patents set up an outer buckle joint at both ends of the catalytic reduction device to facilitate quick replacement of the catalyst, but the internal combustion engine needs to be shut down when replacing the catalyst, which is unacceptable for internal combustion engines that need to run continuously, especially large internal combustion engines that are difficult to start. SUMMARY

[0003] The purpose of the present application is to at least partially solve one of the technical problems of CN117703573A and CN118188113A. To this end, the present application proposes an intelligent control liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device based on the research and development of CN117703573A and CN118188113A.

[0004] The technical solution adopted by the present application to solve its technical problems is: an intelligent control liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device, comprising a double-parallel catalytic reduction regenerative fuel device and an intelligent three-way valve or a triple-parallel catalytic reduction regenerative fuel device and an intelligent four-way valve, a hydrocarbon fuel nozzle, an intelligent control system, and two groups of sensors. The double-parallel catalytic reduction regenerative fuel device comprises a vapor reforming catalytic reducer and a dry reforming catalytic reducer; the exhaust port of the liquid oxygen internal combustion engine is connected to the inlet of the intelligent three-way valve through an exhaust channel, and a hydrocarbon fuel nozzle is arranged at the inlet of the intelligent three-way valve; the outlet of the intelligent three-way valve is connected to the inlets of the vapor reforming catalytic reducer and the dry reforming catalytic reducer through pipelines; the outlets of the vapor reforming catalytic reducer and the dry reforming catalytic reducer are connected to the inlet of the parallel catalytic reduction regenerative fuel device exhaust manifold. The three-parallel catalytic reduction regenerative fuel device comprises a vapor reforming catalytic reducer, a dry reforming catalytic reducer and a double reforming catalytic reducer; the exhaust port of the liquid oxygen internal combustion engine is connected to the inlet of the intelligent four-way valve through an exhaust channel, and a hydrocarbon fuel nozzle is arranged at the inlet of the intelligent four-way valve; the outlet of the intelligent four-way valve is connected to the inlets of the vapor reforming catalytic reducer, the dry reforming catalytic reducer and the double reforming catalytic reducer through pipelines; the outlets of the vapor reforming catalytic reducer, the dry reforming catalytic reducer and the double reforming catalytic reducer are connected to the inlet of the parallel catalytic reduction regenerative fuel device exhaust manifold. The two groups of sensors comprise a first group of sensors and a second group of sensors; the first group of sensors are installed at appropriate positions of the inlets of the intelligent three-way valve or the intelligent four-way valve; and the second group of sensors are installed at appropriate positions of the inlet of the parallel catalytic reduction regenerative fuel device exhaust manifold. The intelligent control system comprises an intelligent processor, an intelligent control unit, a data storage unit, a display screen and the two groups of sensors connected through a data bus; and the intelligent control system is also connected to the ECU of the liquid oxygen internal combustion engine.

[0005] In a preferred embodiment of the present application, the intelligent processor compares and analyzes the data collected by the first group of sensors, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the intelligent three-way valve or the intelligent four-way valve, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen and HC in the exhaust gas, with the data collected by the second group of sensors, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the parallel catalytic reduction regenerative fuel device exhaust manifold, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen and HC in the exhaust gas, to accurately determine the optimal hydrocarbon fuel mass for catalytic reduction by the hydrocarbon fuel nozzle, and the intelligent control unit controls the hydrocarbon fuel nozzle to spray the optimal hydrocarbon fuel mass, while the intelligent control unit controls the intelligent three-way valve or the intelligent four-way valve to switch the exhaust gas into the preferred catalytic reducer for intelligent comparison and analysis calculation by the intelligent control system, so as to achieve the optimal regenerative fuel regeneration rate. The ideal regenerative fuel regeneration rate is calculated according to the following formula: In the formula, R r is the regenerative fuel regeneration rate; E rf is the regenerative fuel energy density, Wh / kg; E CH is the internal combustion engine hydrocarbon fuel energy density, Wh / kg.

[0006] In a preferred embodiment of the present application, the data storage unit is used to store the operation data of the catalytic reducer (especially the regenerative fuel regeneration rate history data of various catalysts), the data collected by the two groups of sensors, the control program of the intelligent three-way valve or the intelligent four-way valve, the operation data of the intelligent processor and the instruction data of the intelligent control system; the display screen is used to read and display the collected parameters, operation parameters and instruction parameters in the data storage unit; the intelligent control system monitors various operation parameters through real-time data analysis, finds abnormal conditions and sends a warning signal to the display screen; the display screen receives the warning signal, sends an alarm and displays abnormal information; at the same time, the intelligent control system detects and automatically repairs itself, and if it cannot automatically repair the abnormality, the intelligent control system sends an alarm for manual intervention to repair the abnormality; when the catalytic reducer in operation has a regenerative fuel regeneration rate lower than a set value due to catalyst deactivation, the intelligent control unit automatically controls the intelligent three-way valve or the intelligent four-way valve to switch the catalytic reducer in operation to another catalytic reducer, so as to ensure the continuous operation of the liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device, and at the same time, the intelligent control unit controls the catalyst intelligent replacement device to automatically replace the deactivated catalyst without stopping the liquid oxygen internal combustion engine; after the catalyst is replaced, the intelligent control unit intelligently controls the intelligent three-way valve or the intelligent four-way valve to switch the system operation back to the catalytic reducer with the replaced catalyst, so as to restore the normal operation of the liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device.

[0007] The present application has the following advantages: (1) The intelligent control system accurately compares and analyzes the data collected by the sensors, such as the tail gas temperature, pressure, flow rate of the inlet and outlet of the catalytic reducer, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen, HC and other gases in the tail gas, determines the optimal fuel injection amount of the hydrocarbon fuel nozzle, and intelligently switches the tail gas into the appropriate catalytic reducer for catalytic reduction through the control of the intelligent three-way valve or the intelligent four-way valve, so as to achieve the optimal regenerative fuel regeneration rate and greatly reduce fuel consumption; (2) The intelligent control system controls the intelligent catalyst replacement device, which can automatically replace the deactivated catalyst without stopping the liquid oxygen internal combustion engine. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the intelligent control liquid oxygen internal combustion engine dual parallel catalytic reduction regeneration fuel device of the present invention. Figure 2 This is a schematic diagram of the intelligent control liquid oxygen internal combustion engine three-parallel catalytic reduction regeneration fuel device of the present invention.

[0009] In the diagram: 1 Liquid oxygen internal combustion engine, 2 Dry reforming catalytic reducer, 3 Parallel catalytic reduction regenerative fuel unit exhaust manifold, 4 Second set of sensors, 5 Steam reforming catalytic reducer, 6 Intelligent control system, 7 Intelligent three-way valve, 8 First set of sensors, 9 Hydrocarbon fuel nozzle, 10 Double reforming catalytic reducer, 11 Intelligent four-way valve. Detailed Implementation

[0010] 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.

[0011] Example 1 like Figure 1 The intelligent control liquid oxygen internal combustion engine parallel catalytic reduction regeneration fuel device shown includes a dual parallel catalytic reduction regeneration fuel device, an intelligent three-way valve 7, a hydrocarbon fuel nozzle 9, an intelligent control system 6, and two sets of sensors. The dual-parallel catalytic reduction regenerative fuel unit includes: a steam reforming catalytic reducer 5 and a dry reforming catalytic reducer 2; the exhaust port of the liquid oxygen internal combustion engine 1 is connected to the intake port of an intelligent three-way valve 7 through a tail gas passage, and a hydrocarbon fuel nozzle 9 is provided at the intake port of the intelligent three-way valve 7; the outlet of the intelligent three-way valve 7 is connected to the intake ports of the steam reforming catalytic reducer 5 and the dry reforming catalytic reducer 2 respectively through pipelines; the outlet ports of the steam reforming catalytic reducer 5 and the dry reforming catalytic reducer 2 are connected to the intake port of the exhaust manifold 3 of the parallel catalytic reduction regenerative fuel unit; The two sets of sensors include a first set of sensors 8 and a second set of sensors 4. The first set of sensors 8 is installed at an appropriate position at the air inlet of the intelligent three-way valve 7, and the second set of sensors 4 is installed at an appropriate position at the air inlet of the exhaust manifold 3 of the parallel catalytic reduction regeneration fuel device. The intelligent control system 6 comprises an intelligent processor, an intelligent control unit, a data storage unit, a display screen, and is connected with the two groups of sensors through a data bus; the intelligent control system 6 is also connected with the ECU of the liquid oxygen internal combustion engine 1 (not shown in the figure).

[0012] The intelligent processor of the present application compares and analyzes the data collected by the first group of sensors 8, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the intelligent three-way valve 7, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen, HC and other gases in the exhaust gas, with the data collected by the second group of sensors 4, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the exhaust manifold of the parallel catalytic reduction fuel regeneration device 3, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen, HC and other gases in the exhaust gas, and accurately determines the optimal hydrocarbon fuel mass for the catalytic reduction of the hydrocarbon fuel nozzle 9, and controls the hydrocarbon fuel nozzle 9 to spray the optimal hydrocarbon fuel mass by the intelligent control unit, while the intelligent control unit controls the intelligent three-way valve 7 to switch the exhaust gas into the catalytic reducer optimized by the intelligent comparison and analysis of the intelligent control system, so as to achieve the optimal regeneration fuel regeneration rate.

[0013] The data storage unit of the present application is used to store the operation data of the catalytic reducer (especially the regeneration fuel regeneration rate historical data of various catalysts), the data collected by the two groups of sensors, the control program of the intelligent three-way valve 7, the operation data of the intelligent processor and the instruction data of the intelligent control system; the display screen is used to read and display the collected parameters, operation parameters and instruction parameters in the data storage unit; the intelligent control system 6 monitors various operation parameters through real-time data analysis, finds abnormal conditions and sends warning signals to the display screen; the display screen receives the warning signals, sends an alarm and displays the abnormal information; at the same time, the intelligent control system 6 detects and automatically repairs itself, if it cannot automatically repair the abnormality, the intelligent control system 6 sends an alarm for manual intervention to repair the abnormality; when the catalytic reducer in operation has a regeneration fuel regeneration rate lower than the set value due to catalyst deactivation, the intelligent control unit automatically controls the intelligent three-way valve 7 to switch the catalytic reducer in operation to another catalytic reducer, so as to ensure the continuous operation of the liquid oxygen internal combustion engine parallel catalytic reduction fuel regeneration device, while the intelligent control unit controls the catalyst intelligent replacement device (not shown in the figure) to automatically replace the deactivated catalyst without stopping the liquid oxygen internal combustion engine; after the catalyst is replaced, the intelligent control unit intelligently controls the intelligent three-way valve 7 to switch the system operation back to the catalytic reducer with the replaced catalyst, and restores the normal operation of the liquid oxygen internal combustion engine parallel catalytic reduction fuel regeneration device.

[0014] The high-temperature exhaust gas composed of water vapor and carbon dioxide after the working of the liquid oxygen internal combustion engine is discharged into the intelligent three-way valve 7 through the exhaust gas channel. After the intelligent processor of the intelligent control system 6 compares, analyzes and calculates the data collected by the sensors, when the preferred catalytic reducer is the steam reforming catalytic reducer 5, the intelligent control unit of the intelligent control system 6 controls the intelligent three-way valve 7 to switch the exhaust gas into the steam reforming catalytic reducer 5; According to the steam reforming catalytic reduction reaction formula: C n H (2n+2) + nH2O → nCO + (2n+1)H 2； In the formula, C n H (2n+2) is a hydrocarbon fuel; H2O is water vapor; CO is carbon monoxide; H2 is hydrogen; and n is a quantity. The ideal water vapor and hydrocarbon fuel unit mass mixing ratio in the steam reforming catalytic reduction reaction can be calculated as follows: For example, the hydrocarbon fuel is gasoline, and the average molecular formula of gasoline is C8H 18 , and the steam reforming reaction is: C8H 18 +8H2O → 8CO+17H2; C8H 18 The molar mass of C8H 18 is 114 g / mol, the molar mass of H2O is 18 g / mol, and according to the reaction formula: 1 mol of C8H 18 requires 8 mol of H2O; the molar mass of 1 g of C8H 18 is 1 ÷ 114 ≈ 0.00877 mol; therefore, the H2O required for the steam reforming of 1 g of C8H n is 0.00877 mol × (8 × 18 g / mol) ≈ 1.263 g; after the intelligent processor compares, analyzes and calculates the H2O detected by the two groups of sensors, the intelligent control unit can accurately control the hydrocarbon fuel nozzle 9 to spray the optimal mass of hydrocarbon fuel, and mix the hydrocarbon fuel with the high-temperature exhaust gas. The mixed high-temperature gas enters the steam reforming catalytic reducer 5 through the intelligent three-way valve 7 to perform the catalytic reduction and fuel regeneration reaction, thereby achieving the optimal fuel regeneration rate.

[0015] When the intelligent processor compares, analyzes and calculates the data collected by the sensors, and the preferred catalytic reducer is the dry reforming catalytic reducer 2, the intelligent control unit controls the intelligent three-way valve 7 to switch the exhaust gas into the dry reforming catalytic reducer 2; According to the dry reforming catalytic reduction reaction formula: C n H (2n+2) + nCO2→ 2nCO + (n+1)H2 In the formula, CO2 is carbon dioxide. The ideal carbon dioxide and hydrocarbon fuel unit mass mixing ratio in the dry reforming catalytic reduction reaction can be calculated as follows: For example, the hydrocarbon fuel is gasoline, and the average molecular formula of gasoline is C8H 18 , and its dry reforming reaction is: C8H 18 + 8CO2 → 16CO + 9H2; C8H 18 The molar mass of C8H 18 is 114 g / mol, and the molar mass of CO2 is 44 g / mol. According to the reaction formula, 1 mol of C8H 18 requires 8 mol of CO2; the molar mass of 1 g of C8H 18 is: 1 ÷ 114 ≈ 0.00877 mol; therefore, 1 g of C8H r requires 0.00877 mol × (8 × 44 g / mol) ≈ 3.087 g of CO2; after the intelligent processor intelligently compares and analyzes the CO2 detected by the two groups of sensors, the intelligent control unit can accurately control the hydrocarbon fuel nozzle 9 to spray the optimal mass of hydrocarbon fuel, and mix it with the high-temperature exhaust gas. The mixed high-temperature gas enters the dry reforming catalytic reduction regenerative fuel device 2 through the intelligent three-way valve 7 to carry out catalytic reduction regenerative fuel reaction, thereby realizing the best regenerative fuel regeneration rate.

[0016] The intelligent control system 6 can further optimize the operation of the liquid oxygen internal combustion engine parallel catalytic reduction regenerative fuel device according to the regenerative fuel regeneration rate. The ideal regenerative fuel regeneration rate is calculated as follows: In the formula, R r is the regenerative fuel regeneration rate; E rf is the regenerative fuel energy density, Wh / kg; E CH is the internal combustion engine hydrocarbon fuel energy density, Wh / kg.

[0017] When the internal combustion engine hydrocarbon fuel is gasoline, the energy density of 1 kg of gasoline is 47300 kJ / kg or 13139 Wh / kg; assuming the average molecular formula of gasoline is C8H 18 ; (a) The steam reforming reaction is: C8H 18 + 8H2O → 8CO + 17H2; C8H 18 The molar mass of C8H 18 is 114 g / mol, the molar mass of H2O is 18 g / mol, the molar mass of CO is 28 g / mol, and the molar mass of H2 is 2 g / mol; 1 kg of C8H 18 has a molar number of: 1000 ÷ 114 ≈ 8.77 mol, according to the steam reforming reaction formula, 1 mol of C8H18 The output can be: ① 8.77 mol x 8 mol CO / mol C8H 18 = 70.16 mol CO; 70.16 mol CO x 28 g / mol = 1964.48 g CO ≈ 1.96 kg CO; 1 kg CO energy density is about 3381 Wh / kg, 1.96 kg CO energy density is about 6627 Wh / kg; ② 8.77 mol x 17 mol H2 / mol C8H 18 = 149.09 mol H2; 149.09 mol H2 x 2 g / mol = 298.18 g ≈ 0.3 kg H2; 1 kg H2 energy density is about 39444 Wh / kg, 0.3 kg H2 energy density is about 11833 Wh / kg; Therefore, 1 kg of gasoline steam reforming can produce about 1.96 kg of CO, with an energy density of about 6627 Wh / kg; about 0.3 kg of H2, with an energy density of about 11833 Wh / kg; Therefore, the total energy density of CO and H2 produced by 1 kg of gasoline steam reforming is about 18460 Wh / kg, which is about 5321 Wh / kg more than the energy density of 1 kg of gasoline, i.e. the energy density of the renewable fuel produced by steam reforming is about 5321 Wh / kg, and therefore the ideal renewable fuel regeneration rate of 1 kg of gasoline steam reforming is about 40% according to the renewable fuel regeneration rate formula; (b) Dry reforming reaction: C8H 18 + 8 CO2 → 16 CO + 9 H2; C8H 18 Molar mass is 114 g / mol, CO2 molar mass is 44 g / mol, CO molar mass is 28 g / mol, H2 molar mass is 2 g / mol; 1 kg C8H 18 Moles: 1000 / 114 ≈ 8.77 mol, according to the dry reforming reaction formula, 1 mol C8H 18 16 mol CO and 9 mol H2 can be generated, so 1 kg C8H 18 The output can be: ① 8.77 mol x 16 mol CO / mol C8H 18 = 140.32 mol CO; 140.32 mol CO x 28 g / mol = 3928.96 g CO ≈ 3.93 kg CO; 1 kg CO energy density is about 3381 Wh / kg, 3.93 kg CO energy density is about 13287 Wh / kg; ② 8.77 mol x 9 mol H2 / mol C8H18 =78.93molH2; 78.93molH2 x 2g / mol = 157.86gH2 ≈ 0.16kgH2; 1kgH2 has an energy density of approximately 39444Wh / kg, and 0.16kgH2 has an energy density of approximately 6311Wh / kg.

[0018] 1 kg of dry reforming of gasoline produces approximately 3.93 kg of CO, with an energy density of approximately 13287 Wh / kg; and approximately 0.16 kg of H2, with an energy density of approximately 6311 Wh / kg. Therefore, the total energy density of CO and H2 produced by 1 kg of dry reforming of gasoline is approximately 19598 Wh / kg, which is about 6459 Wh / kg more than the energy density of 1 kg of gasoline (13139 Wh / kg). This means that the energy density of the recycled fuel produced by dry reforming is approximately 6459 Wh / kg. Based on the recycled fuel regeneration rate formula, the ideal recycled fuel regeneration rate of 1 kg of dry reforming of gasoline is approximately 49%.

[0019] The calculation of the ideal regeneration rate of other hydrocarbon fuels through catalytic reduction can be deduced by analogy from the above method.

[0020] Example 2 like Figure 2 The intelligent control liquid oxygen internal combustion engine three-parallel catalytic reduction regeneration fuel device shown differs from Embodiment 1 in that it is based on the dual-parallel catalytic reduction regeneration fuel device, with the addition of a dual reforming catalytic reducer 10. The dual reforming catalytic reducer 10 is connected in parallel with the steam reforming catalytic reducer 5 and the dry reforming catalytic reducer 2, and the intelligent three-way valve 7 is replaced with an intelligent four-way valve 11. The three-parallel catalytic reduction regeneration fuel device includes the steam reforming catalytic reducer 5 and the dry reforming catalytic reducer 2. The liquid oxygen internal combustion engine 1 exhaust port is connected to the intake port of the intelligent four-way valve 11 through the exhaust gas passage. The intake port of the intelligent four-way valve 11 is equipped with a hydrocarbon fuel nozzle 9. The exhaust port of the intelligent four-way valve 11 is connected to the intake port of the steam reforming catalytic reducer 5, the intake port of the dry reforming catalytic reducer 2, and the intake port of the dual reforming catalytic reducer 10, respectively. The exhaust ports of the steam reforming catalytic reducer 5, the dry reforming catalytic reducer 2, and the dual reforming catalytic reducer 10 are connected to the inlet of the exhaust manifold 3 of the parallel catalytic reduction regeneration fuel device. The two sets of sensors include a first set of sensors 8 and a second set of sensors 4. The first set of sensors 8 is installed at an appropriate position at the air inlet of the intelligent four-way valve 11, and the second set of sensors 4 is installed at an appropriate position at the air inlet of the exhaust manifold 3 of the parallel catalytic reduction regeneration fuel device. The intelligent control system 6 comprises an intelligent processor, an intelligent control unit, a data storage unit, a display screen, and is connected with the two groups of sensors through a data bus; the intelligent control system 6 is also connected with the ECU of the liquid oxygen internal combustion engine 1 (not shown in the figure).

[0021] The intelligent processor of the present application compares and analyzes the data collected by the first group of sensors 8, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the intelligent four-way valve 11, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen, HC and other gases in the exhaust gas, with the data collected by the second group of sensors 4, such as the temperature, pressure, flow rate of the exhaust gas at the inlet of the exhaust manifold 3 of the parallel catalytic reduction fuel regeneration device, and the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen, HC and other gases in the exhaust gas, and calculates the optimal hydrocarbon fuel mass for catalytic reduction of the hydrocarbon fuel nozzle 9, and controls the hydrocarbon fuel nozzle 9 to spray the optimal hydrocarbon fuel mass by the intelligent control unit, while the intelligent control unit controls the intelligent four-way valve 11 to switch the exhaust gas into the catalytic reducer optimized by the intelligent comparison and analysis of the intelligent control system, so as to achieve the optimal regeneration fuel regeneration rate.

[0022] The data storage unit of the present application is used to store the operation data of the catalytic reducer (especially the regeneration fuel regeneration rate historical data of various catalysts), the data collected by the two groups of sensors, the control program of the intelligent four-way valve 11, the operation data of the intelligent processor and the instruction data of the intelligent control system; the display screen is used to read and display the collected parameters, operation parameters and instruction parameters in the data storage unit; the intelligent control system 6 monitors various operation parameters through real-time data analysis, finds abnormal conditions and sends warning signals to the display screen; the display screen receives the warning signals, sends an alarm and displays the abnormal information; at the same time, the intelligent control system 6 detects and automatically repairs itself, if it cannot automatically repair the abnormality, the intelligent control system 6 sends an alarm for manual intervention to repair the abnormality; when the catalytic reducer in operation has a regeneration fuel regeneration rate lower than the set value due to catalyst deactivation, the intelligent control unit automatically controls the intelligent four-way valve 11 to switch the catalytic reducer in operation to another catalytic reducer, so as to ensure the continuous operation of the liquid oxygen internal combustion engine parallel catalytic reduction fuel regeneration device, and the intelligent control unit controls the catalyst intelligent replacement device (not shown in the figure) to automatically replace the deactivated catalyst without stopping the liquid oxygen internal combustion engine; after the catalyst is replaced, the intelligent control unit controls the intelligent four-way valve 11 to switch the system operation back to the catalytic reducer with the replaced catalyst, and restores the normal operation of the liquid oxygen internal combustion engine parallel catalytic reduction fuel regeneration device.

[0023] When the intelligent processor compares and analyzes the data collected by the sensors and optimizes the catalytic reducer to be a dual-reforming catalytic reducer, the intelligent control unit controls the intelligent four-way valve 11 to switch the exhaust gas into the dual-reforming catalytic reducer 10. Based on the dual-catalytic reduction reaction formula: 2C n H (2n+2) + nH2O + nCO2→ 3nCO + (3n+2)H2 The ideal mixing ratio of water vapor and carbon dioxide with hydrocarbon fuel in a dual-catalytic reduction reaction can be calculated: for example, when the hydrocarbon fuel is gasoline, assuming the average molecular formula of gasoline is C8H. 18 Its double integration reaction is: 2C8H 18 +8CO2 +8H2O → 32CO + 26H2 C8H 18 The molar mass is 114 g / mol, the molar mass of H2O is 18 g / mol, and the molar mass of CO2 is 44 g / mol. From the reaction equation, we can see that 1 mol of C8H2O... 18 Requires 4 mol H₂O and 4 mol CO₂; 1 g C₈H₂O 18 The molar mass is: 1 ÷ 114 ≈ 0.00877 mol; therefore, 1 g of C8H 18 The required mass of H2O for the dual-integration process is: 0.00877mol × (4 × 18 g / mol) ≈ 0.631g H2O, and the required mass of CO2 is: 0.00877mol × (4 × 44 g / mol) ≈ 1.544g CO2. Based on this, the intelligent processor intelligently compares and analyzes the water vapor and carbon dioxide detected by the two sets of sensors. The intelligent control unit can then precisely control the hydrocarbon fuel nozzle to inject the optimal mass of hydrocarbon fuel to mix with the high-temperature exhaust gas. The mixed high-temperature gas enters the dual-integration catalytic reducer 10 through the intelligent four-way valve 11 to undergo catalytic reduction and regeneration of the fuel, thereby achieving the optimal regeneration rate of the regenerated fuel.

[0024] In the double reforming reaction, 2 kg of gasoline produces approximately 5.89 kg of CO, with an energy density of approximately 19914 Wh / kg; and approximately 0.46 kg of H2, with an energy density of approximately 18144 Wh / kg. Therefore, the total energy density of CO and H2 produced by the double reforming of 2 kg of gasoline is approximately 38058 Wh / kg, which is about 11780 Wh / kg more than the energy density of 2 kg of gasoline (approximately 26278 Wh / kg). In other words, the energy density of the recycled fuel produced by the double reforming is approximately 11780 Wh / kg. Based on the recycled fuel regeneration rate formula, the ideal recycled fuel regeneration rate of 1 kg of gasoline from the double reforming reaction is approximately 45%.

[0025] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A smart controlled liquid oxygen internal combustion engine parallel type catalytic reduction regenerative fuel device, characterized in that, The device comprises a double-parallel catalytic reduction regenerative fuel device and an intelligent three-way valve or a triple-parallel catalytic reduction regenerative fuel device and an intelligent four-way valve, a hydrocarbon fuel nozzle, an intelligent control system and two groups of sensors. The double-parallel catalytic reduction regenerative fuel device comprises a vapor reforming catalytic reducer and a dry reforming catalytic reducer. The exhaust port of the liquid oxygen internal combustion engine is connected to the intelligent three-way valve inlet through an exhaust channel, the intelligent three-way valve inlet is provided with a hydrocarbon fuel nozzle, the intelligent three-way valve outlet is connected to the vapor reforming catalytic reducer inlet and the dry reforming catalytic reducer inlet through pipelines, and the vapor reforming catalytic reducer outlet and the dry reforming catalytic reducer outlet are connected to the parallel catalytic reduction regenerative fuel device exhaust manifold inlet. The triple-parallel catalytic reduction regenerative fuel device comprises a vapor reforming catalytic reducer, a dry reforming catalytic reducer and a double reforming catalytic reducer. The exhaust port of the liquid oxygen internal combustion engine is connected to the intelligent four-way valve inlet through an exhaust channel, the intelligent four-way valve inlet is provided with a hydrocarbon fuel nozzle, the intelligent four-way valve outlet is connected to the vapor reforming catalytic reducer inlet, the dry reforming catalytic reducer inlet and the double reforming catalytic reducer inlet through pipelines, and the vapor reforming catalytic reducer outlet, the dry reforming catalytic reducer outlet and the double reforming catalytic reducer outlet are connected to the parallel catalytic reduction regenerative fuel device exhaust manifold inlet. The two groups of sensors comprise a first group of sensors and a second group of sensors, the first group of sensors are installed at appropriate positions of the intelligent three-way valve or the intelligent four-way valve inlet, and the second group of sensors are installed at appropriate positions of the parallel catalytic reduction regenerative fuel device exhaust manifold inlet.

2. The intelligent processor of claim 1, wherein, The intelligent control system comprises an intelligent processor, an intelligent control unit, a data storage unit, a display screen and two groups of sensors connected through a data bus, and is connected to the liquid oxygen internal combustion engine ECU. The intelligent processor compares and analyzes the data collected by the first group of sensors, such as the exhaust temperature, pressure, flow rate, the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen and HC in the exhaust gas at the intelligent three-way valve or the intelligent four-way valve inlet, with the data collected by the second group of sensors, such as the exhaust temperature, pressure, flow rate, the molar mass content of carbon dioxide, water vapor, hydrogen, carbon monoxide, oxygen and HC in the exhaust gas at the parallel catalytic reduction regenerative fuel device exhaust manifold inlet, to accurately determine the optimal hydrocarbon fuel mass for catalytic reduction, and the intelligent control unit controls the hydrocarbon fuel nozzle to spray the optimal hydrocarbon fuel mass, while the intelligent control unit controls the intelligent three-way valve or the intelligent four-way valve to switch the exhaust gas into the intelligent control system to analyze and calculate the preferred catalytic reducer, so as to achieve the optimal regenerative fuel regeneration rate. The ideal regenerative fuel regeneration rate is calculated according to the following formula: wherein R r is the regeneration fuel regeneration rate; E rf is the regeneration fuel energy density, Wh / kg; E CH is the internal combustion engine hydrocarbon fuel energy density, Wh / kg.

3. The data storage unit and display screen of claim 1, wherein, The data storage unit is used to store the operation data of the catalytic reducer (especially the regeneration fuel regeneration rate history data of various catalysts), the data collected by the two groups of sensors, the control program of the intelligent three-way valve or the intelligent four-way valve, the operation data of the intelligent processor and the instruction data of the intelligent control system; the display screen is used to read and display the collected parameters, operation parameters and instruction parameters in the data storage unit; the intelligent control system monitors various operation parameters through real-time data analysis, finds abnormal conditions and sends a warning signal to the display screen; the display screen receives the warning signal, sends an alarm and displays abnormal information; at the same time, the intelligent control system detects and automatically repairs by itself, if it cannot automatically repair the abnormality, the intelligent control system sends an alarm for manual intervention to repair the abnormality; when the catalytic reducer in operation has a regeneration fuel regeneration rate lower than the set value due to catalyst deactivation, the intelligent control unit automatically controls the intelligent three-way valve or the intelligent four-way valve to switch the catalytic reducer in operation to another catalytic reducer, so as to ensure the continuous operation of the liquid oxygen internal combustion engine parallel catalytic reduction regeneration fuel device, and the intelligent control unit controls the catalyst intelligent replacement device to automatically replace the deactivated catalyst without stopping the liquid oxygen internal combustion engine; After the catalyst is replaced, the intelligent control unit intelligently controls the intelligent three-way valve or the intelligent four-way valve to switch the system operation back to the catalytic reducer with the replaced catalyst, so as to restore the normal operation of the liquid oxygen internal combustion engine parallel catalytic reduction regeneration fuel device.

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