Water-gas separation system, method and device, electronic equipment and vehicle

Abstract

The invention discloses a water-gas separation system, method and device, electronic equipment and a vehicle, and relates to the field of tail gas treatment, and the water-gas separation system comprises water-gas separation equipment, a flow control valve group, a flow meter, a first water content detector and a second water content detector. An inlet of the water-gas separation equipment is connected with an exhaust port of the hydrogen engine through a bypass pipeline, and part of exhaust gas is subjected to moisture separation through the water-gas separation equipment and then returns to an exhaust pipeline to be sent into a post-treatment system together to be treated. The flow control valve set is arranged on the bypass pipeline and used for adjusting the flow proportion of exhaust gas entering the water-gas separation equipment. The flow meter and the first water content detector are arranged on the first pipeline, the second water content detector is arranged on the second pipeline, and the flow meter, the first water content detector and the second water content detector are used for providing reference data for adjustment of the flow control valve bank. The water content of exhaust entering the post-treatment system meets the working requirement of the post-treatment system, and the influence on a catalyst is reduced.

Description

Technical Field

[0001] This application relates to the field of exhaust gas treatment technology, and in particular to a water-gas separation system, method, apparatus, electronic device and vehicle. Background Technology

[0002] A hydrogen engine is an engine that uses hydrogen as fuel. Its working principle is similar to a traditional internal combustion engine, but the difference lies in the fuel choice: it uses hydrogen instead of traditional fossil fuels such as gasoline and diesel. Hydrogen combustion employs lean-burn technology, resulting in thermal efficiency far exceeding that of traditional fuel engines. Furthermore, the combustion product of a hydrogen engine is water, with almost no carbon dioxide or other pollutants emitted, thus better meeting emission requirements and effectively reducing environmental pollution. However, when the exhaust of a hydrogen engine contains high levels of moisture, it can degrade the catalyst in the aftertreatment system, affecting its normal operation. Summary of the Invention

[0003] In view of the above problems, this application provides a water-gas separation system, method, apparatus, electronic device, and vehicle to reduce the moisture content in hydrogen engine exhaust. The specific solution is as follows:

[0004] The first aspect of this application provides a water-gas separation system, including: a water-gas separation device, a flow control valve group, a flow meter, a first moisture content meter, and a second moisture content meter;

[0005] The inlet of the water-gas separator is connected to the exhaust port of the hydrogen engine via a bypass pipeline. The exhaust port of the water-gas separator is connected to 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 after-treatment system.

[0006] The flow control valve group is installed on the bypass pipeline, and the flow control valve group is used to adjust the exhaust flow rate ratio entering the water-gas separator.

[0007] The flow meter and the first moisture content meter are installed on the first pipeline, and the second moisture content meter is installed on the second pipeline. The first pipeline is the section of the exhaust pipe located between the aftertreatment system and the connecting position. The connecting position is the position where the second pipeline connects to the exhaust pipe. The second pipeline is the connecting pipeline between the exhaust port of the water-gas separator and the exhaust pipe. The flow meter, the first moisture content meter, and the second moisture content meter are used to provide reference data for adjusting the flow control valve group so that the moisture content of the exhaust gas entering the aftertreatment system meets the working requirements of the aftertreatment system.

[0008] A second aspect of this application provides a water-gas separation method, applied to the water-gas separation system described in the first aspect above, comprising:

[0009] Based on the first moisture content detection value and the target exhaust moisture content value, it is determined whether the exhaust moisture content of the hydrogen engine meets the requirements. The first moisture content detection value is the detection value of the first moisture 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 the corrected water-gas separation efficiency. 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 rate 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 rate ratio.

[0012] In one possible implementation, the process of determining the initial opening of the flow control valve assembly includes:

[0013] Based on the initial exhaust volume and air-fuel ratio of the hydrogen engine, the initial exhaust water content 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 rate ratio entering the water-gas separation device is determined, and the initial opening degree of the flow control valve group is determined based on the initial exhaust flow rate ratio.

[0015] In one possible implementation, the process of determining the initial displacement of the hydrogen engine includes:

[0016] The initial displacement is determined from the calibration table based on the rotational speed and torque of the hydrogen engine.

[0017] In one possible implementation, the initial water-gas separation efficiency is 100%, and determining the initial exhaust flow rate 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 includes:

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

[0019] In one possible implementation, the water-gas separation efficiency of the water-gas separation device is corrected based on the exhaust flow rate detection value and the second moisture content detection value from the flow meter, resulting in 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 the corrected exhaust water content value obtained based on the exhaust flow detection value and air-fuel ratio.

[0021] In one possible implementation, determining the exhaust flow rate ratio entering the water-gas separation device 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 includes:

[0022] The exhaust flow rate ratio is obtained based on A = 1 / D - (E% / (X%×D)), where A is the exhaust flow rate 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 rate detection value and the air-fuel ratio.

[0023] A third aspect of this application provides a water-gas separation device, comprising:

[0024] The moisture content standard detection module determines whether the exhaust moisture content of the hydrogen engine meets the requirements based on the first moisture content detection value and the target exhaust moisture content value. The first moisture content detection value is the detection value of the first moisture content detector.

[0025] A separation efficiency adjustment module is used to correct the water-gas separation efficiency of the water-gas separation device based on the exhaust flow rate detection value of the flow meter and the second water content detection value when it is determined that the exhaust water content of the hydrogen engine does not meet the requirements, thereby obtaining a corrected water-gas separation efficiency. The second water content detection value is the detection value of the second water content detector.

[0026] The exhaust flow rate ratio correction module is used to determine the exhaust flow rate ratio entering the water-gas separation device 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, and to adjust the initial opening of the flow control valve group based on the exhaust flow rate ratio.

[0027] A fourth aspect of this application provides an electronic device, including at least one processor and a memory connected to the processor, wherein:

[0028] The memory is used to store computer programs;

[0029] The processor is used to execute the computer program to enable the electronic device to implement the water-gas separation method as described in the second aspect or any implementation thereof.

[0030] The fifth aspect of this application provides a vehicle including electronic equipment as described in the fourth aspect above and a water-air separation system as described in the first aspect above, wherein the electronic equipment is connected to a flow control valve assembly, a flow meter, a first moisture content meter, and a second moisture content meter, respectively.

[0031] The sixth aspect of this application provides a computer program product including computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the water-gas separation method described in the first aspect or any implementation thereof.

[0032] The seventh aspect of this application provides a computer storage medium carrying one or more computer programs, which, when executed by an electronic device, enable the electronic device to perform the water-gas separation method described in the first aspect or any implementation thereof.

[0033] By means of the above technical solution, this application provides a water-gas separation system, including: a water-gas separation device, a flow control valve assembly, a flow meter, a first moisture content meter, and a second moisture content meter. The inlet of the water-gas separation device is connected to the exhaust port of the hydrogen engine through a bypass pipeline. A portion of the exhaust gas, after moisture separation by the water-gas separation device, returns to the exhaust pipeline and is sent to the after-treatment system for processing. The flow control valve assembly is installed on the bypass pipeline and is used to adjust the proportion of exhaust gas flow entering the water-gas separation device. The flow meter and the first moisture content meter are installed on the first pipeline, and the second moisture content meter is installed on the second pipeline. The first pipeline is the section of the exhaust pipeline located between the after-treatment system and the connecting position. The connecting position is the location where the second pipeline connects to the exhaust pipeline. The second pipeline is the connecting pipeline between the exhaust port of the water-gas separation device and the exhaust pipeline. The flow meter, the first moisture content meter, and the second moisture content meter are used to provide reference data for adjusting the flow control valve assembly. This water-gas separation system enables the moisture content of the exhaust gas entering the after-treatment system to meet the operating requirements of the after-treatment system, effectively reducing the impact on the catalyst. Attached Figure Description

[0034] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0035] Figure 1 This application provides a structural diagram of a water-gas separation system;

[0036] Figure 2 A flowchart of a water-gas separation method provided in this application;

[0037] Figure 3 An application flowchart of a water-gas separation method provided in this application;

[0038] Figure 4 This application provides a structural diagram of a water-gas separation device;

[0039] Figure 5 This is a structural diagram of an electronic device provided in this application. Detailed Implementation

[0040] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0041] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0042] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0043] The vehicle's after-treatment system mainly consists of a catalytic converter, particulate filter, diesel oxidation catalytic converter, selective catalytic reduction system, exhaust gas recirculation system, and evaporative emission control system. Among these, the catalytic converter, as the core component for exhaust gas treatment, uses a catalyst to convert carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas into carbon dioxide, water, and nitrogen. When the water content in the exhaust of a hydrogen engine is high, the condensate formed from the water vapor in the exhaust enters the catalytic converter and comes into contact with the internal catalyst, causing oxidation and corrosion of the coating. A long-term high-water-content environment will damage catalytic performance and reduce exhaust gas purification efficiency.

[0044] To address the aforementioned problems, this application provides a water-gas separation system. The water-gas separation system of this application embodiment will be described in detail below with reference to the accompanying drawings.

[0045] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of the water-air separation system provided in the embodiments of this application, as shown below. Figure 1 As shown, the water-gas separation system provided in this application embodiment includes: water-gas separation device 3, flow control valve group 2, flow meter 7, first moisture content detector 6 and second moisture content detector 4.

[0046] The inlet of the water-gas separator 3 is connected to the exhaust port of the hydrogen engine 1 through a bypass pipeline. The exhaust port of the water-gas separator 3 is connected to the 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 the after-treatment system 8.

[0047] The flow control valve group 2 is installed on the bypass pipeline and is used to adjust the proportion of exhaust flow entering the water-gas separator 3.

[0048] Flow meter 7 and first moisture content meter 6 are installed on the first pipeline, and second moisture content meter 4 is installed on the second pipeline. The first pipeline is the part of the exhaust pipeline 5 located between the post-treatment system 8 and the connecting position. The connecting position is the position where the second pipeline is connected to the exhaust pipeline 5. The second pipeline is the connecting pipeline between the exhaust port of the water-gas separator 3 and the exhaust pipeline 5. Flow meter 7, first moisture content meter 6 and second moisture content meter 4 are used to provide reference data for the adjustment of the flow control valve group 2 so that the moisture content of the exhaust gas entering the post-treatment system 8 meets the working requirements of the post-treatment system 8.

[0049] Specifically, a bypass branch is introduced from the original exhaust pipe 5 of the hydrogen engine to install a water-gas separator 3 to separate moisture from the exhaust of the hydrogen engine 1. The separated moisture is discharged through a drain outlet, and the remaining exhaust returns to the exhaust pipe 5 to enter the aftertreatment system 8 for processing. In this way, by separating a portion of the moisture in the exhaust gas of the hydrogen engine 1, the overall water content in the exhaust of the hydrogen engine 1 is reduced to meet the water content requirements (for example, a level equivalent to the 10% water content in the exhaust of a diesel engine).

[0050] The flow control valve assembly 2 can adjust the exhaust ratio entering the water-gas separator 3. When controlling the opening of the flow control valve assembly 2, the detection value of the first moisture content meter 6 and the target exhaust moisture content value (e.g., 10% as mentioned above) can be compared to determine whether the exhaust moisture content meets the requirements. If the requirements are met, the opening of the flow control valve assembly 2 is not adjusted. If the requirements are not met, the water-gas separation efficiency of the water-gas separator 3 is adjusted based on the exhaust flow detection value detected by the flow meter 7 and the moisture content detection value of the second moisture content meter 4. Then, based on the adjusted water-gas separation efficiency, the target exhaust moisture content value, and the second moisture content detection value, the exhaust flow ratio entering the water-gas separator 3 is determined, and the initial opening of the flow control valve assembly 2 is adjusted based on the exhaust flow ratio to ensure that the exhaust of the hydrogen engine meets the requirements.

[0051] This water-gas separation system can effectively control the moisture content in the exhaust gas during the operation of the hydrogen engine, keeping it below or equal to the water content requirements of diesel engines and other fuel engines. This effectively avoids the impact of excessive moisture in the hydrogen engine exhaust on the subsequent catalyst and ensures the normal operation of the aftertreatment system.

[0052] It is understood that those skilled in the art can choose familiar equipment for the quantity and model of the above-mentioned flow control valve group, the first moisture content meter, the second moisture content meter, the flow meter, and the water-air separation equipment, and will not elaborate further here.

[0053] Reference Figure 2 As shown in the embodiments of this application, a water-gas separation method is also provided, which can be applied to the water-gas separation system described in the above embodiments, and specifically includes the following processing steps:

[0054] 201. Based on the first moisture content detection value and the target exhaust moisture content value, determine whether the exhaust moisture content of the hydrogen engine meets the requirements. The first moisture content detection value is the detection value of the first moisture content detector.

[0055] Specifically, after the water-gas separation device separates some of the moisture in the exhaust gas, the remaining exhaust gas is returned to the exhaust pipeline and mixed with the exhaust gas in the non-exhaust pipeline that has not undergone water-gas separation. Then, the first moisture content detector checks whether the moisture content of the exhaust gas in the exhaust pipeline meets the requirements, such as whether the moisture content detection value is not higher than 10%.

[0056] 202. 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 the corrected water-gas separation efficiency. The second water content detection value is the detection value of the second water content detector.

[0057] Specifically, when it is determined that the exhaust water content of the hydrogen engine does not meet the requirements, the 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 the corrected exhaust water content value obtained based on the exhaust flow detection value and air-fuel ratio.

[0058] Based on the exhaust flow rate measured by the flow meter, the water content in the exhaust gas of the hydrogen engine before water-gas separation can be obtained by combining the air-fuel ratio of the hydrogen engine. The air-fuel ratio can be obtained based on the pre-calibrated air-fuel ratio of the hydrogen engine.

[0059] 203. 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, determine the exhaust flow rate ratio entering the water-gas separation device, and adjust the initial opening of the flow control valve group based on the exhaust flow rate ratio.

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

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

[0062] Step 11: Based on the initial exhaust volume and air-fuel ratio of the hydrogen engine, determine the initial exhaust water content of the hydrogen engine.

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

[0064] Step 12: Based on the initial exhaust water content, the target exhaust water content, and the initial water-gas separation efficiency of the water-gas separator, determine the initial exhaust flow rate ratio entering the water-gas separator, and determine the initial opening degree of the flow control valve based on the initial exhaust flow rate ratio.

[0065] Based on the initial exhaust moisture content value, the default initial water-gas separation efficiency of the water-gas separation equipment (e.g., 100%) is used.

[0066] Based on C=1-E% / B%, the initial exhaust flow rate ratio is obtained, where C is the initial exhaust flow rate ratio, B% is the initial exhaust moisture content value, and E% is the target exhaust moisture content value.

[0067] For ease of calculation, 100% water-gas separation efficiency is used here. Those skilled in the art can adjust and select the initial water-gas separation efficiency as needed, and make corresponding adjustments to the calculation formula of the above initial exhaust volume ratio, which will not be elaborated here.

[0068] As a specific application of the above-mentioned water-gas separation method, refer to Figure 3 As shown, this water-gas separation method can be based on the following processing steps:

[0069] Step 1: Calculate the displacement based on the engine torque and speed.

[0070] Step 2: Calculate the exhaust water content based on the calibrated air-fuel ratio.

[0071] Step 3: Set the target exhaust water content to a level comparable to that of a diesel engine. The target exhaust water content is 10%.

[0072] Step 4: Assuming a water-gas separation efficiency of 100%, calculate the proportion of exhaust flow into the water-gas separator as: C = 1 - 10% / B.

[0073] Step 5: Based on the exhaust moisture content meter and flow meter, correct the exhaust flow rate and the moisture separation efficiency of the moisture separation device. On this basis, calculate the proportion of exhaust flow rate flowing into the water-gas separation device as: A=1 / D-(10% / (X%×D)).

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

[0075] The above describes a water-gas separation method provided by the embodiments of this application. The following will describe the apparatus for performing the above water-gas separation method.

[0076] Please see Figure 4 , Figure 4 This is a schematic diagram of a water-air separation device provided in an embodiment of this application. Figure 4 As shown, the water-gas separation device includes:

[0077] The moisture content standard detection module 401 determines whether the moisture content of the hydrogen engine's exhaust meets the requirements based on the first moisture content detection value and the target exhaust moisture content value. The first moisture content detection value is the detection value of the first moisture content detector.

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

[0079] The exhaust flow rate ratio correction module 403 is used to determine the exhaust flow rate ratio entering the water-gas separation device 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, and to adjust the initial opening of the flow control valve group based on the exhaust flow rate ratio.

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

[0081] Based on the initial exhaust volume and air-fuel ratio of the hydrogen engine, the initial exhaust water content of the hydrogen engine is determined.

[0082] Based on the initial exhaust moisture content, the target exhaust moisture content, and the initial water-gas separation efficiency of the water-gas separator, the initial exhaust flow rate ratio entering the water-gas separator is determined, and the initial opening degree of the flow control valve is determined based on the initial exhaust flow rate ratio.

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

[0084] The initial displacement was determined from the calibration table based on the engine speed and torque of the hydrogen engine.

[0085] In one possible implementation, the initial water-gas separation efficiency is 100%. The exhaust flow rate correction module 403 determines the initial exhaust flow rate 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. The process includes:

[0086] Based on C=1-E% / B%, the initial exhaust flow rate ratio is obtained, where C is the initial exhaust flow rate ratio, B% is the initial exhaust moisture content value, and E% is the target exhaust moisture content value.

[0087] In one possible implementation, the process by which the separation efficiency adjustment module 402 corrects the water-gas separation efficiency of the water-gas separation device based on the exhaust flow rate detection value and the second moisture content detection value of the flow meter to obtain the corrected water-gas separation efficiency includes:

[0088] Based on D=1-Y% / X%, the 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 water content value obtained based on the exhaust flow detection value and air-fuel ratio.

[0089] In one possible implementation, the exhaust flow rate correction module 403 determines the exhaust flow rate ratio entering the water-gas separator based on the corrected water-gas separation efficiency, the target exhaust water content value, and the initial exhaust water content value of the hydrogen engine. This process includes:

[0090] Based on A=1 / D-(E% / (X%×D)), the exhaust flow rate ratio is obtained, where A is the exhaust flow rate 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 rate detection value and air-fuel ratio.

[0091] This application also provides an electronic device in its embodiments. (See reference...) Figure 5 The diagram illustrates a structural schematic suitable for implementing the electronic devices in the embodiments of this application. The electronic devices in the embodiments of this application may include, but are not limited to, ECU (Electronic Control Unit), VCU (Vehicle Control Unit), MCU (Micro Controller Unit), HCU (Hybrid Control Unit), etc. Figure 5 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0092] refer to Figure 5 As shown, the electronic device includes at least one processor 501 and a memory 502 connected to the processor 501, wherein: the memory is used to store computer programs; the processor 501 is used to execute the computer programs to enable the electronic device to implement the water-gas separation method as described in the above embodiment.

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

[0094] This application also provides a computer-readable storage medium that carries one or more computer programs. 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 this application.

[0095] This application also provides a vehicle, including the electronic equipment described in the above embodiments and the water-air separation system described in the above embodiments. The electronic equipment is connected to a flow control valve group, a flow meter, a first moisture content meter, and a second moisture content meter, respectively.

[0096] It should also be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the device embodiment drawings provided in this application, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0098] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0099] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A water-gas separation system, characterized in that, include: Water-air separation equipment (3), flow control valve group (2), flow meter (7), first moisture content meter (6) and second moisture content meter (4); The inlet of the water-gas separator (3) is connected to the exhaust port of the hydrogen engine (1) through a bypass pipeline. The exhaust port of the water-gas separator (3) is connected to the 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 the after-treatment system (8). The flow control valve group (2) is installed on the bypass pipeline, and the flow control valve group (2) is used to adjust the exhaust flow ratio of the water-gas separation equipment (3); The flow meter (7) and the first moisture content meter (6) are installed on the first pipeline, and the second moisture content meter (4) is installed on the second pipeline. The first pipeline is the part of the exhaust pipeline (5) located between the post-treatment system (8) and the connecting position. The connecting position is the position where the second pipeline is connected to the exhaust pipeline (5). The second pipeline is the connecting pipeline between the exhaust port of the water-gas separation device (3) and the exhaust pipeline (5). The flow meter (7), the first moisture content meter (6) and the second moisture content meter (4) are used to provide reference data for the adjustment of the flow control valve group (2) so that the moisture content of the exhaust gas entering the post-treatment system (8) meets the working requirements of the post-treatment system (8).

2. A water-gas separation method, applied to the water-gas separation system of claim 1, characterized in that, include: Based on the first moisture content detection value and the target exhaust moisture content value, it is determined whether the exhaust moisture content of the hydrogen engine meets the requirements. The first moisture content detection value is the detection value of the first moisture content detector. 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 the corrected water-gas separation efficiency. The second water content detection value is the detection value of the second water content detector. 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 rate 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 rate ratio.

3. The water-gas separation method according to claim 2, characterized in that, The process of determining the initial opening degree of the flow control valve assembly includes: Based on the initial exhaust volume and air-fuel ratio of the hydrogen engine, the initial exhaust water content of the hydrogen engine is determined. 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 rate ratio entering the water-gas separation device is determined, and the initial opening degree of the flow control valve group is determined based on the initial exhaust flow rate ratio.

4. The water-gas separation method according to claim 3, characterized in that, The process of determining the initial displacement of the hydrogen engine includes: The initial displacement is determined from the calibration table based on the rotational speed and torque of the hydrogen engine.

5. The water-gas separation method according to claim 3, characterized in that, The initial water-gas separation efficiency is 100%. The determination of the initial exhaust flow rate 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 includes: The initial exhaust flow rate ratio is obtained based on C=1-E% / B%, where C is the initial exhaust flow rate ratio, B% is the initial exhaust moisture content value, and E% is the target exhaust moisture content value.

6. The water-gas separation method according to claim 2, characterized in that, The water-gas separation efficiency of the water-gas separation equipment is corrected based on the exhaust flow rate detection value and the second moisture content detection value, resulting in the 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 water content detection value, and X% is the corrected exhaust water content value obtained based on the exhaust flow detection value and air-fuel ratio.

7. The water-gas separation method according to claim 2, characterized in that, The determination of the exhaust flow rate ratio entering the water-gas separation device 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 includes: The exhaust flow rate ratio is obtained based on A = 1 / D - (E% / (X%×D)), where A is the exhaust flow rate 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 rate detection value and the air-fuel ratio.

8. A water-gas separation device, characterized in that, include: The moisture content standard detection module determines whether the exhaust moisture content of the hydrogen engine meets the requirements based on the first moisture content detection value and the target exhaust moisture content value. The first moisture content detection value is the detection value of the first moisture content detector. The separation efficiency adjustment module is used 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 exhaust water content of the hydrogen engine does not meet the requirements, so as to obtain the corrected water-gas separation efficiency. The second water content detection value is the detection value of the second water content detector. as well as, The exhaust flow rate ratio correction module is used to determine the exhaust flow rate ratio entering the water-gas separation device 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, and to adjust the initial opening of the flow control valve group based on the exhaust flow rate ratio.

9. An electronic device, characterized in that, It includes at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program to enable the electronic device to implement the water-gas separation method as described in any one of claims 2 to 7.

10. A vehicle, characterized in that, The system includes the electronic device as described in claim 9 and the water-gas separation system as described in claim 1, wherein the electronic device is connected to a flow control valve assembly, a flow meter, a first moisture content meter, and a second moisture content meter, respectively.

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