A water-air separation system, method, apparatus, electronic device, and vehicle

Abstract

The application discloses a water-gas separation system, method, device, electronic equipment and vehicle, and relates to the field of tail gas treatment, and comprises a water-gas separation device, a flow control valve group, a flow meter, a first water content detection meter and a second water content detection meter. The water-gas separation device inlet is connected with the exhaust port of a hydrogen engine through a bypass pipeline, and a part of exhaust gas is separated from water in the water-gas separation device and then returned to the exhaust pipeline to be sent into a post-processing system for processing. The flow control valve group is arranged on the bypass pipeline and is used for adjusting the exhaust gas flow ratio entering the water-gas separation device. The flow meter and the first water content detection meter are arranged on a first pipeline, and the second water content detection meter is arranged on a second pipeline; the flow meter, the first water content detection meter and the second water content detection meter are used for providing reference data for the adjustment of the flow control valve group. The water content of the exhaust gas entering the post-processing system meets the working requirements of the post-processing system, and the influence on the catalyst is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas treatment, and in particular to a water-gas separation system, method, device, electronic equipment and vehicle. BACKGROUND

[0002] A hydrogen engine is an engine that uses hydrogen as fuel. Its working principle is similar to that of a traditional internal combustion engine, but the difference in fuel selection is that it uses hydrogen instead of traditional fossil fuels such as gasoline and diesel. Hydrogen combustion uses lean-burn technology, and the thermal efficiency is much higher than that of traditional fuel engines. Moreover, the products of hydrogen engine combustion are water, which almost does not emit carbon dioxide and other pollutants, and can better meet emission requirements and effectively reduce environmental pollution. However, when the exhaust gas of the hydrogen engine carries a high amount of water, the catalyst of the aftertreatment system will be deteriorated, affecting the normal operation of the aftertreatment system. SUMMARY

[0003] In view of the above problems, the present application provides a water-gas separation system, method, device, electronic equipment and vehicle to achieve the purpose of reducing the water content in the exhaust gas of a hydrogen engine. The specific scheme is as follows:

[0004] The first aspect of the present application provides a water-gas separation system, comprising: a water-gas separation device, a flow control valve group, a flow meter, a first water content detection meter and a second water content detection meter;

[0005] The water-gas separation device inlet is connected to the exhaust port of the hydrogen engine through a bypass pipeline, and the water-gas separation device exhaust port is in communication with the exhaust pipeline. One end of the exhaust pipeline is connected to the exhaust port of the hydrogen engine, and the other end of the exhaust pipeline is connected to the aftertreatment system;

[0006] The flow control valve group is arranged on the bypass pipeline, and is used to adjust the exhaust flow ratio entering the water-gas separation device;

[0007] The flow meter and the first water content detection meter are arranged on a first pipeline, and the second water content detection meter is arranged on a second pipeline. The first pipeline is a part of the exhaust pipeline between the aftertreatment system and a communication position. The communication position is a position where the second pipeline communicates with the exhaust pipeline. The second pipeline is a connecting pipeline between the exhaust port of the water-gas separation device and the exhaust pipeline. The flow meter, the first water content detection meter and the second water content detection meter are used to provide reference data for the adjustment of the flow control valve group, so that the water content of the exhaust gas entering the aftertreatment system meets the working requirements of the aftertreatment system.

[0008] The second aspect of the present application provides a water-gas separation method applied to the water-gas separation system of the first aspect, comprising:

[0009] Based on the first water content detection value and the target exhaust water content value, it is determined whether the exhaust water content of the hydrogen engine meets the requirements, and the first water content detection value is the detection value of the first water content detector;

[0010] When it is determined that the exhaust water content of the hydrogen engine does not meet the requirements, the water-gas separation efficiency of the water-gas separation device is corrected based on the exhaust flow detection value of the flow meter and the second water content detection value, to obtain a corrected water-gas separation efficiency, and the second water content detection value is the detection value of the second water content detector;

[0011] Based on the corrected water-gas separation efficiency, the target exhaust water content value, and the corrected exhaust water content value of the hydrogen engine, the exhaust flow ratio entering the water-gas separation device is determined, and the initial opening of the flow control valve group is adjusted based on the exhaust flow ratio.

[0012] In one possible implementation, the determination process of the initial opening of the flow control valve group comprises:

[0013] Based on the initial exhaust amount and the air-fuel ratio of the hydrogen engine, the initial exhaust water content value of the hydrogen engine is determined;

[0014] Based on the initial exhaust water content value, the target exhaust water content value, and the initial water-gas separation efficiency of the water-gas separation device, the initial exhaust flow ratio entering the water-gas separation device is determined, and the initial opening of the flow control valve group is determined based on the initial exhaust flow ratio.

[0015] In one possible implementation, the determination process of the initial exhaust amount of the hydrogen engine comprises:

[0016] Based on the rotational speed and the torque of the hydrogen engine, the initial exhaust amount is determined from a calibration table.

[0017] In one possible implementation, the initial water-gas separation efficiency is 100%, and the determination of the initial exhaust flow ratio entering the water-gas separation device based on the initial exhaust water content value, the target exhaust water content value, and the initial water-gas separation efficiency of the water-gas separation device comprises:

[0018] Based on C=1-E% / B%, the initial exhaust flow ratio is obtained, where C is the initial exhaust flow ratio, B% is the initial exhaust water content value, and E% is the target exhaust water content value.

[0019] In a possible implementation, the water-gas separation efficiency of the water-gas separation device is corrected based on the exhaust flow detection value of the flow meter and the second water content detection value, to obtain a corrected water-gas separation efficiency, including:

[0020] The corrected water-gas separation efficiency is obtained based on D=1-Y% / X%, where D is the corrected water-gas separation efficiency, Y% is the second water content detection value, and X% is a corrected exhaust water content value obtained based on the exhaust flow detection value and an air-fuel ratio.

[0021] In a possible implementation, the exhaust flow ratio into the water-gas separation device is determined based on the corrected water-gas separation efficiency, the target exhaust water content value, and the corrected exhaust water content value of the hydrogen engine, including:

[0022] The exhaust flow ratio is obtained based on A=1 / D-(E% / (X%*D)), where A is the exhaust flow ratio, D is the corrected water-gas separation efficiency, E% is the target exhaust water content value, and X% is the corrected exhaust water content value obtained based on the exhaust flow detection value and an air-fuel ratio.

[0023] The third aspect of the present application provides a water-gas separation device, including:

[0024] A water content standard detection module determines whether the exhaust water content of the hydrogen engine meets the requirement based on a first water content detection value and a target exhaust water content value, where the first water content detection value is a detection value of a first water content detector.

[0025] A separation efficiency adjustment module corrects the water-gas separation efficiency of the water-gas separation device based on an exhaust flow detection value of a flow meter and a second water content detection value to obtain a corrected water-gas separation efficiency when it is determined that the exhaust water content of the hydrogen engine does not meet the requirement, where the second water content detection value is a detection value of a second water content detector; and

[0026] An exhaust flow ratio correction module determines an exhaust flow ratio into the water-gas separation device based on the corrected water-gas separation efficiency, the target exhaust water content value, and a corrected exhaust water content value of the hydrogen engine, and adjusts an initial opening degree of the flow control valve group based on the exhaust flow ratio.

[0027] The fourth aspect of the present application provides an electronic device, including at least one processor and a memory connected with the processor, where:

[0028] The memory is configured to store a computer program.

[0029] The processor is configured to execute the computer program to enable the electronic device to implement the water-gas separation method according to the second aspect or any implementation manner of the second aspect.

[0030] The fifth aspect of the present application provides a vehicle comprising the electronic device according to the fourth aspect and the water-gas separation system according to the first aspect, and the electronic device is connected with the flow control valve group, the flow meter, the first water content detector and the second water content detector respectively.

[0031] The sixth aspect of the present application provides a computer program product comprising computer readable instructions, which, when executed on an electronic device, enable the electronic device to implement the water-gas separation method according to the first aspect or any implementation manner of the first aspect.

[0032] The seventh aspect of the present application provides a computer storage medium, which carries one or more computer programs, which, when executed on an electronic device, enable the electronic device to implement the water-gas separation method according to the first aspect or any implementation manner of the first aspect.

[0033] By means of the above technical solution, the water-gas separation system provided by the present application comprises a water-gas separation device, a flow control valve group, a flow meter, a first water content detector and a second water content detector. The water-gas separation device inlet is connected with the exhaust port of the hydrogen engine through a bypass pipeline, and a part of the exhaust gas is returned to the exhaust pipeline after being separated from water by the water-gas separation device and then sent to the aftertreatment system for treatment. The flow control valve group is arranged on the bypass pipeline and is used for adjusting the exhaust gas flow ratio entering the water-gas separation device. The flow meter and the first water content detector are arranged on the first pipeline, and the second water content detector is arranged on the second pipeline. The first pipeline is a part of the exhaust pipeline between the aftertreatment system and the communication position. The communication position is a position where the second pipeline communicates with the exhaust pipeline. The second pipeline is a connecting pipeline between the exhaust port of the water-gas separation device and the exhaust pipeline. The flow meter, the first water content detector and the second water content detector are used for providing reference data for the adjustment of the flow control valve group. The water-gas separation system can make the water content of the exhaust gas entering the aftertreatment system meet the working requirements of the aftertreatment system, and effectively reduce the influence on the catalyst. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other features, advantages, and aspects of the embodiments of the present disclosure will become more apparent by describing in detail the following specific embodiments with reference to the attached drawings. Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. It should be understood that the drawings are schematic, and the original and elements are not necessarily drawn according to the scale.

[0035] Figure 1 A structural diagram of a water-gas separation system provided by the present application;

[0036] Figure 2 A flow chart of a water-gas separation method provided for the present application;

[0037] Figure 3 An application flow chart of a water-gas separation method provided for the present application;

[0038] Figure 4 A structural diagram of a water-gas separation device provided for the present application;

[0039] Figure 5 A structural diagram of an electronic device provided for the present application. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described below in conjunction with the accompanying drawings. The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0041] The embodiments of the present application are described below in conjunction with the accompanying drawings. The skilled person can know that, with the development of technology and the appearance of new scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0042] The terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is only a distinguishing way used in the description of the embodiments of the present application to describe the objects with the same attributes. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the processes, methods, systems, products or equipment containing a series of units do not have to be limited to those units, but can include other units not clearly listed or inherent to these processes, methods, products or equipment.

[0043] The aftertreatment system of the vehicle mainly consists of catalytic converters, particulate traps, diesel oxidation catalysts, selective catalytic reduction systems, exhaust gas recirculation systems, and evaporative emission control systems. Among them, the catalytic converter is the core component for exhaust treatment, which converts carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas into carbon dioxide, water, and nitrogen through a catalyst. When the hydrogen engine exhaust gas contains a high amount of water, the condensed water formed by the water vapor in the exhaust gas enters the catalyst and contacts the internal catalyst, causing coating oxidation corrosion. Long-term high water content environment can damage the catalytic performance and reduce the exhaust gas purification efficiency.

[0044] To solve the above problems, the water-gas separation system is provided in the embodiments of the present application. The water-gas separation system in the embodiments of the present application is described in detail below with reference to the drawings.

[0045] Referring to Figure 1 , Figure 1 The water-gas separation system provided in the embodiments of the present application has the structure as shown in FIG. 1. The water-gas separation system provided in the embodiments of the present application includes a water-gas separation device 3, a flow control valve group 2, a flow meter 7, a first water content detection meter 6, and a second water content detection meter 4. Figure 1

[0046] The inlet of the water-gas separation device 3 is connected to the exhaust port of the hydrogen engine 1 through a bypass pipeline, and the exhaust port of the water-gas separation device 3 is in communication with an exhaust pipeline 5. One end of the exhaust pipeline 5 is connected to the exhaust port of the hydrogen engine 1, and the other end of the exhaust pipeline 5 is connected to an aftertreatment system 8.

[0047] The flow control valve group 2 is arranged on the bypass pipeline, and is used to adjust the exhaust flow ratio entering the water-gas separation device 3.

[0048] The flow meter 7 and the first water content detection meter 6 are arranged on a first pipeline, and the second water content detection meter 4 is arranged on a second pipeline. The first pipeline is a part of the exhaust pipeline 5 between the aftertreatment system 8 and a communication position. The communication position is a position at which the second pipeline is in communication with the exhaust pipeline 5. The second pipeline is a connecting pipeline between the exhaust port of the water-gas separation device 3 and the exhaust pipeline 5. The flow meter 7, the first water content detection meter 6, and the second water content detection meter 4 are used to provide reference data for the adjustment of the flow control valve group 2, so that the water content of the exhaust entering the aftertreatment system 8 meets the working requirements of the aftertreatment system 8.

[0049] Specifically, a bypass branch is introduced on the basis of the original exhaust pipeline 5 of the hydrogen engine to arrange the water-gas separation device 3 to separate the water in the exhaust of the hydrogen engine 1. The separated water is discharged through a water outlet, and the remaining exhaust is returned to the exhaust pipeline 5 to enter the aftertreatment system 8 for treatment. In this way, the water content in the exhaust of the hydrogen engine 1 is reduced as a whole by separating the water in a part of the exhaust of the hydrogen engine 1, so that the water content meets the water content requirements (for example, the level corresponding to 10% of the exhaust water content of a diesel engine).

[0050] ​The flow control valve group 2 can adjust the proportion of the exhaust gas entering the water-gas separation device 3. When the opening of the flow control valve group 2 is controlled, the detected value of the first water content detection meter 6 and the target exhaust gas water content value (for example, 10% as mentioned above) are compared to determine whether the exhaust gas water content meets the requirements. If the requirements are met, the opening of the flow control valve group 2 is not adjusted. If the requirements are not met, the exhaust gas flow detection value detected by the flow meter 7 and the water content detection value of the second water content detection meter 4 are used to adjust the water-gas separation efficiency of the water-gas separation device 3. Then, based on the adjusted water-gas separation efficiency, the target exhaust gas water content value, and the second water content detection value, the proportion of the exhaust gas entering the water-gas separation device 3 is determined, and the initial opening of the flow control valve group 2 is adjusted based on the proportion of the exhaust gas, so that the exhaust gas of the hydrogen engine meets the requirements.

[0051] The water-gas separation system can effectively control the water content in the exhaust gas during the operation of the hydrogen engine, so that the water content is lower than or equal to the exhaust gas water content requirement of a diesel engine or other fuel engine, effectively avoiding the influence of excessive water content in the exhaust gas of the hydrogen engine on the subsequent catalyst, and ensuring the normal operation of the aftertreatment system.

[0052] It can be understood that the number and type of the flow control valve group, the first water content detection meter, the second water content detection meter, the flow meter, and the specific type of the water-gas separation device can be selected by those skilled in the art, and will not be described here.

[0053] Referring to Figure 2 The embodiment of the present application also provides a water-gas separation method, which can be applied to the water-gas separation system described in the above embodiment and can specifically include the following processing procedures:

[0054] 201. Determine whether the exhaust gas water content of the hydrogen engine meets the requirements based on the first water content detection value and the target exhaust gas water content value. The first water content detection value is the detection value of the first water content detection meter.

[0055] Specifically, after the water content in part of the exhaust gas is separated by the water-gas separation device, the remaining exhaust gas is returned to the exhaust gas pipeline and mixed with the exhaust gas that has not been subjected to water-gas separation in the exhaust gas pipeline. Then, the first water content detection meter is used to detect whether the exhaust gas water content in the exhaust gas pipeline meets the requirements, for example, whether the water content detection value is not higher than 10%.

[0056] 202. When it is determined that the exhaust gas water content of the hydrogen engine does not meet the requirements, correct the water-gas separation efficiency of the water-gas separation device based on the exhaust gas flow detection value of the flow meter and the second water content detection value, to obtain the corrected water-gas separation efficiency. The second water content detection value is the detection value of the second water content detection meter.

[0057] Specifically, when it is determined that the water content in the exhaust gas of the hydrogen engine does not meet the requirement, a corrected water-gas separation efficiency can be obtained based on D=1-Y% / X%, where D is the corrected water-gas separation efficiency, Y% is the second water content detection value, and X% is a corrected exhaust gas water content value obtained based on the exhaust gas flow detection value and the air-fuel ratio of the hydrogen engine.

[0058] wherein the water content in the exhaust gas of the hydrogen engine before water-gas separation is obtained based on the exhaust gas flow detection value obtained by the flow meter in combination with the air-fuel ratio of the hydrogen engine, and the air-fuel ratio can be obtained according to the pre-calibrated air-fuel ratio of the hydrogen engine.

[0059] 203. Based on the corrected water-gas separation efficiency, the target exhaust gas water content value, and the corrected exhaust gas water content value of the hydrogen engine, a proportion of the exhaust gas flow entering the water-gas separation device is determined, and the initial opening degree of the flow control valve group is adjusted based on the proportion of the exhaust gas flow.

[0060] Specifically, based on A=1 / D-(E% / (X%xD)), the proportion of the exhaust gas flow is obtained based on the corrected water-gas separation efficiency, where A is the proportion of the exhaust gas flow, D is the corrected water-gas separation efficiency, E% is the target exhaust gas water content value, and X% is a corrected exhaust gas water content value obtained based on the exhaust gas flow detection value and the air-fuel ratio.

[0061] wherein the process of determining the initial opening degree of the flow control valve group can specifically include:

[0062] Step 11. Based on the initial exhaust gas volume of the hydrogen engine and the air-fuel ratio, an initial exhaust gas water content value of the hydrogen engine is determined.

[0063] Specifically, after the hydrogen engine starts running, the initial exhaust gas volume can be determined from a calibration table based on the speed and torque of the hydrogen engine. Then, the initial exhaust gas water content of the hydrogen engine is further determined according to the air-fuel ratio of the hydrogen engine obtained from the calibration table.

[0064] Step 12. Based on the initial exhaust gas water content value, the target exhaust gas water content value, and the initial water-gas separation efficiency of the water-gas separation device, an initial proportion of the exhaust gas flow entering the water-gas separation device is determined, and the initial opening degree of the flow control valve is determined based on the initial proportion of the exhaust gas flow.

[0065] based on the initial exhaust gas water content value, according to the default initial water-gas separation efficiency (e.g. 100%) of the water-gas separation device,

[0066] based on C=1-E% / B%, the initial proportion of the exhaust gas flow is obtained, where C is the initial proportion of the exhaust gas flow, B% is the initial exhaust gas water content value, and E% is the target exhaust gas water content value.

[0067] Here, 100% water separation efficiency is used for convenience of calculation, and the initial water separation efficiency used can be adjusted and selected as needed by those skilled in the art, and the calculation formula of the above initial exhaust gas volume ratio is adjusted accordingly, which is not described here.

[0068] As a specific application of the above water separation method, referring to Figure 3 , the water separation method can include the following processes:

[0069] Step 1: Calculate the exhaust gas volume according to the engine torque and speed.

[0070] Step 2: Calculate the water content in the exhaust gas according to the calibrated air-fuel ratio.

[0071] Step 3: Set the target exhaust gas water content to a level comparable to a diesel engine, and the target exhaust gas water content is 10%.

[0072] Step 4: Calculate the exhaust gas flow ratio flowing into the water separation device according to the water separation efficiency of 100%, which is C=1-10% / B%.

[0073] Step 5: According to the exhaust gas water content detection meter and the flow meter, correct the exhaust gas flow and the water separation efficiency of the water separation device, and on this basis, calculate the exhaust gas flow ratio flowing into the water separation device, which is A=1 / D-(10% / (X%D)).

[0074] Step 6: When the hydrogen engine is not stopped (i.e., the engine speed is not 0), repeat the above step 5 to control the opening of the flow control valve group.

[0075] The above introduces a water separation method provided by the embodiments of the present application, and the following will introduce a device for executing the above water separation method.

[0076] Please refer to Figure 4 , Figure 4 for a structural schematic diagram of a water separation device provided by the embodiments of the present application. As Figure 4 shown, the water separation device includes:

[0077] The water content standard detection module 401 determines whether the water content in the exhaust gas of the hydrogen engine meets the requirements based on the first water content detection value and the target exhaust gas water content value. The first water content detection value is the detection value of the first water content detection meter.

[0078] The separation efficiency adjustment module 402 is configured to correct the water-gas separation efficiency of the water-gas separation device based on the exhaust flow detection value of the flow meter and the second water content detection value when it is determined that the water content of the exhaust gas of the hydrogen engine does not meet the requirement, to obtain a corrected water-gas separation efficiency, and the second water content detection value is a detection value of the second water content detector.

[0079] The exhaust flow ratio correction module 403 is configured to determine an exhaust flow ratio entering the water-gas separation device based on the corrected water-gas separation efficiency, the target exhaust gas water content value, and the corrected exhaust gas water content value of the hydrogen engine, and adjust the initial opening degree of the flow control valve group based on the exhaust flow ratio.

[0080] In a possible implementation, the process of determining the initial opening degree of the flow control valve group in the exhaust flow ratio correction module 403 includes:

[0081] determining the initial exhaust gas water content value of the hydrogen engine based on the initial exhaust flow of the hydrogen engine and the air-fuel ratio;

[0082] determining the initial exhaust flow ratio entering the water-gas separation device based on the initial exhaust gas water content value, the target exhaust gas water content value, and the initial water-gas separation efficiency of the water-gas separation device, and determining the initial opening degree of the flow control valve based on the initial exhaust flow ratio.

[0083] In a possible implementation, the process of determining the initial exhaust flow of the hydrogen engine in the exhaust flow ratio correction module 403 includes:

[0084] determining the initial exhaust flow from a calibration table based on the rotational speed and the torque of the hydrogen engine.

[0085] In a possible implementation, the initial water-gas separation efficiency is 100%, and the process of determining the initial exhaust flow ratio entering the water-gas separation device based on the initial exhaust gas water content value, the target exhaust gas water content value, and the initial water-gas separation efficiency of the water-gas separation device in the exhaust flow ratio correction module 403 includes:

[0086] obtaining the initial exhaust flow ratio based on C=1-E% / B%, wherein C is the initial exhaust flow ratio, B% is the initial exhaust gas water content value, and E% is the target exhaust gas water content value.

[0087] In a possible implementation, the process of correcting the water-gas separation efficiency of the water-gas separation device based on the exhaust flow detection value of the flow meter and the second water content detection value in the separation efficiency adjustment module 402 includes:

[0088] Based on D=1-Y% / X%, a corrected water-gas separation efficiency is obtained, where D is the corrected water-gas separation efficiency, Y% is the second water content detection value, and X% is the corrected exhaust gas water content value based on the exhaust gas flow detection value and the air-fuel ratio.

[0089] In a possible implementation, the exhaust gas flow ratio correction module 403 determines the process of the exhaust gas flow ratio entering the water-gas separation device based on the corrected water-gas separation efficiency, the target exhaust gas water content value, and the initial exhaust gas water content value of the hydrogen engine, including:

[0090] Based on A=1 / D-(E% / (X%xD)), the exhaust gas flow ratio is obtained, where A is the exhaust gas flow ratio, D is the corrected water-gas separation efficiency, E% is the target exhaust gas water content value, and X% is the corrected exhaust gas water content value based on the exhaust gas flow detection value and the air-fuel ratio.

[0091] The embodiment of the present application also provides an electronic device. Referring to Figure 5 , a structure diagram suitable for implementing the electronic device in the embodiment of the present application is shown. The electronic device in the embodiment of the present application can include but is not limited to an ECU (Electronic Control Unit), a VCU (Vehicle Control Unit), an MCU (Micro Controller Unit), an HCU (Hybrid Control Unit), and the like. Figure 5 The electronic device shown is only an example, and should not bring any limitation to the functions and use range of the embodiment of the present application.

[0092] Referring to Figure 5 , the electronic device includes at least one processor 501 and a memory 502 connected with the processor 501, where the memory is used to store a computer program, and the processor 501 is used to execute the computer program, so that the electronic device can implement the water-gas separation method as described in the above embodiment.

[0093] The embodiment of the present application also provides a computer program product including computer readable instructions, which, when executed on an electronic device, enable the electronic device to implement any of the water-gas separation methods provided in the embodiments of the present application.

[0094] The embodiment of the present application also provides a computer readable storage medium, which carries one or more computer programs, and when the one or more computer programs are executed by an electronic device, the electronic device can implement any of the water-gas separation methods provided in the embodiments of the present application.

[0095] The embodiment of the present application also provides a vehicle comprising the electronic device and the water-gas separation system as described above.

[0096] It should be noted that the above-described device embodiments are only illustrative, and the units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e., can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment according to actual needs. In addition, the connection relationship between the modules in the device embodiment provided by the present application indicates that there is a communication connection between them, which can be implemented as one or more communication buses or signal lines.

[0097] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be realized by means of software and necessary general hardware, and of course can also be realized by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. Generally, functions completed by computer programs can be easily realized by corresponding hardware, and the specific hardware structure for realizing the same function can also be various, such as analog circuit, digital circuit or special circuit, etc. However, for the present application, software program implementation is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of software products, which are stored in readable storage media, such as computer floppy disks, U disks, mobile hard disks, ROM, RAM, magnetic or optical disks, etc., including a plurality of instructions for making a computer device (which can be a personal computer, training device, or network device, etc.) execute the methods described in various embodiments of the present application.

[0098] In the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, it can be realized in the form of a computer program product in whole or in part.

[0099] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, training device or data center to another website, computer, training device or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be stored by the computer or a data storage device such as a training device, a data center, etc. integrated with one or more available media sets. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.

Claims

1. A water gas separation system characterized by, The application relates to a hydrogen engine exhaust water separation system, which comprises a water separation device (3), a flow control valve group (2), a flow meter (7), a first water content detector (6) and a second water content detector (4). The water separation device (3) is connected with the exhaust port of a hydrogen engine (1) through a bypass pipeline, the exhaust port of the water separation device (3) is communicated with an exhaust pipeline (5), one end of the exhaust pipeline (5) is connected with the exhaust port of the hydrogen engine (1), and the other end of the exhaust pipeline (5) is connected with an aftertreatment system (8). The flow control valve group (2) is arranged on the bypass pipeline and is used for adjusting the exhaust flow proportion entering the water separation device (3). The flow meter (7) and the first water content detector (6) are arranged on a first pipeline, the second water content detector (4) is arranged on a second pipeline, the first pipeline is a part of the exhaust pipeline (5) between the aftertreatment system (8) and a communication position, the communication position is a position where the second pipeline is communicated with the exhaust pipeline (5), the second pipeline is a connecting pipeline between the exhaust port of the water separation device (3) and the exhaust pipeline (5), and the flow meter (7), the first water content detector (6) and the second water content detector (4) are used for providing reference data for the adjustment of the flow control valve group (2), so that the exhaust water content entering the aftertreatment system (8) meets the working requirements of the aftertreatment system (8). The application further relates to a hydrogen engine exhaust water separation method, which comprises the following steps.

2. A water-gas separation method, applied to the water-gas separation system of claim 1, characterized in that, Based on a first water content detection value and a target exhaust water content value, it is determined whether the exhaust water content of the hydrogen engine meets the requirements, the first water content detection value is a detection value of a first water content detector; When it is determined that the exhaust water content of the hydrogen engine does not meet the requirements, the water separation efficiency of a water separation device is corrected based on an exhaust flow detection value of a flow meter and a second water content detection value, a corrected water separation efficiency is obtained, the second water content detection value is a detection value of a second water content detector; Based on the corrected water separation efficiency, the target exhaust water content value and a corrected exhaust water content value of the hydrogen engine, an exhaust flow proportion entering the water separation device is determined, and the initial opening degree of a flow control valve group is adjusted based on the exhaust flow proportion. The determination process of the initial opening degree of the flow control valve group comprises the following steps.

3. The water gas separation method of claim 2, wherein, Based on an initial exhaust amount of the hydrogen engine and an air-fuel ratio, an initial exhaust water content value of the hydrogen engine is determined; Based on the initial exhaust water content value, the target exhaust water content value and an initial water separation efficiency of the water separation device, an initial exhaust flow proportion entering the water separation device is determined, and the initial opening degree of the flow control valve group is determined based on the initial exhaust flow proportion. The determination process of the initial exhaust amount of the hydrogen engine comprises the following steps.

4. The water gas separation method of claim 3, wherein, Based on the rotating speed and the torque of the hydrogen engine, the initial exhaust amount is determined from a calibration table. ​ 5. The water gas separation method of claim 3, wherein, The initial water-gas separation efficiency is 100%, and the initial exhaust gas flow rate proportion entering the water-gas separation device is determined based on the initial exhaust gas moisture content value, the target exhaust gas moisture content value, and the initial water-gas separation efficiency of the water-gas separation device, including: The initial exhaust gas flow rate proportion is obtained based on C=1-E% / B%, where C is the initial exhaust gas flow rate proportion, B% is the initial exhaust gas moisture content value, and E% is the target exhaust gas moisture content value.

6. The water gas separation method of claim 2, wherein, The water-gas separation efficiency of the water-gas separation device is corrected based on the exhaust gas flow rate detection value of the flow meter and the second moisture content detection value, to obtain a corrected water-gas separation efficiency, including: The corrected water-gas separation efficiency is obtained based on D=1-Y% / X%, where D is the corrected water-gas separation efficiency, Y% is the second moisture content detection value, and X% is a corrected exhaust gas moisture content value obtained based on the exhaust gas flow rate detection value and the air-fuel ratio.

7. The water gas separation method of claim 2, wherein, The exhaust gas flow rate proportion entering the water-gas separation device is determined based on the corrected water-gas separation efficiency, the target exhaust gas moisture content value, and the corrected exhaust gas moisture content value of the hydrogen engine, including: The exhaust gas flow rate proportion is obtained based on A=1 / D-(E% / (X%×D)), where A is the exhaust gas flow rate proportion, D is the corrected water-gas separation efficiency, E% is the target exhaust gas moisture content value, and X% is the corrected exhaust gas moisture content value obtained based on the exhaust gas flow rate detection value and the air-fuel ratio.

8. A water gas separation device characterized by, including: A moisture content standard detection module determines whether the exhaust gas moisture content of the hydrogen engine meets the requirements based on a first moisture content detection value and a target exhaust gas moisture content value, the first moisture content detection value being a detection value of a first moisture content detector; A separation efficiency adjustment module corrects the water-gas separation efficiency of the water-gas separation device based on the exhaust gas flow rate detection value of the flow meter and a second moisture content detection value to obtain a corrected water-gas separation efficiency when it is determined that the exhaust gas moisture content of the hydrogen engine does not meet the requirements, the second moisture content detection value being a detection value of a second moisture content detector; and An exhaust gas flow rate proportion correction module determines the exhaust gas flow rate proportion entering the water-gas separation device based on the corrected water-gas separation efficiency, the target exhaust gas moisture content value, and the corrected exhaust gas moisture content value of the hydrogen engine, and adjusts the initial opening degree of the flow control valve group based on the exhaust gas flow rate proportion.

9. An electronic device, comprising: including at least one processor and a memory connected to the processor, wherein: The memory is used to store a computer program; The processor is used to execute the computer program to enable the electronic device to implement the water-gas separation method of any one of claims 2 to 7.

10. A vehicle characterized by comprising: The electronic device of claim 9 and the water-gas separation system of claim 1 are connected to the flow control valve group, the flow meter, the first moisture content detector, and the second moisture content detector, respectively.

Images