Natural gas hydrogen-doped premixing control method and system applied to setting machine

Abstract

The invention provides a natural gas hydrogen-doped premixing control method and system applied to a setting machine, and belongs to the technical field of pipelines, the natural gas hydrogen-doped premixing control method specifically comprises the steps that a hydrogen preparation device and a natural gas supply device mix natural gas and hydrogen through a pipeline and then enter a mixing device, and the mixing device is responsible for storage treatment of the natural gas and the hydrogen; the natural gas and the hydrogen are mixed, the mixed natural gas and the hydrogen are provided for the setting machine, the setting machine uses the mixed natural gas and the hydrogen for heating treatment, heat generated by the heating treatment is used for setting treatment of a setting treatment target, and the reliability of natural gas hydrogen-doped premixing control treatment applied to the setting machine is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipelines, and in particular relates to a natural gas hydrogen premixing control method and system applied to a setting machine. Background Art

[0002] Currently, when performing clothing shaping, natural gas is often used for drying and shaping, which requires the natural gas to be passed into a burner for combustion, which inevitably leads to high carbon emissions.

[0003] Therefore, in order to solve the above technical problems, existing technical solutions reduce carbon emissions by blending hydrogen with natural gas. Specifically, similar technical solutions are proposed in invention patent applications CN217635103U "A natural gas hydrogen blending ratio precise control device" and CN115127032A "Natural gas hydrogen blending system". However, the existing technical solutions have the following problems: In the process of hydrogen premixing control, for the shaping and drying of clothing, in order to reduce carbon emissions, the hydrogen blending ratio is often increased on the basis of meeting the temperature control temperature requirements. However, due to the deviation of the temperature control range in different shaping stages, if the blending capacity is not adjusted, the adjustment processing efficiency of the hydrogen blending ratio may be difficult to meet the requirements. At the same time, if a lower blending capacity is used at the beginning, when the hydrogen blending concentration of the hydrogen production device is abnormal, the temperature control reliability of the shaping machine will be difficult to meet the requirements. This makes it difficult to determine how to adjust the blending capacity of different shaping stages according to the changes in the hydrogen blending ratio between different shaping stages and the capacity requirements of the later shaping stage. This becomes a technical problem that needs to be solved urgently.

[0004] In order to solve the above technical problems, the present application provides a natural gas hydrogen premixing control method and system applied to a setting machine. Summary of the Invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: Specifically, the present application provides a natural gas hydrogen premixing control method applied to a setting machine, which specifically includes: S1 determines the temperature control range in different shaping stages based on the shaping processing target of the shaping machine, and determines the optimal hydrogen doping ratio in the shaping stage according to the historical overtemperature data of different hydrogen doping ratios within the temperature control range; S2 determines that the blending amount of the blending device needs to be adjusted based on the change of the optimal hydrogen blending ratio between the finalization stage and the next finalization stage and the historical overtemperature data of the optimal hydrogen blending ratio in the next finalization stage, and then proceeds to the next step; S3 determines the change of the optimal hydrogen blending ratio between the finalization stage and the next finalization stage, and determines the capacity switching matching type of different finalization stages based on the historical temperature control data of the finalization machine under the optimal hydrogen blending ratio; S4 determines the adjustment strategy of the blending capacity in the finalization stage based on the capacity switching matching type in the finalization stage and in combination with the capacity switching matching types and capacity adaptation intervals in different finalization stages in the future.

[0006] A further technical solution is that the shaping stage includes a heating stage, a thermal equilibrium stage, a molecular reconstruction stage and a cooling shaping stage.

[0007] A further technical solution is that the temperature control range is determined according to the type of the shaping treatment target and parameter control requirements.

[0008] A further technical solution is that the hydrogen blending ratio is the proportion of hydrogen in the mixed gas of natural gas and hydrogen consumed by the setting machine.

[0009] A further technical solution is that the parameters include one or more of dimensional stability, molecular structure change, breaking strength and softness.

[0010] A further technical solution is that the method for determining the optimal hydrogen doping ratio in the finalization stage is: Determine the number of historical overtemperatures at the hydrogen doping ratio according to historical overtemperature data within the temperature control range at different hydrogen doping ratios; An optimal hydrogen blending ratio in the finalization stage is determined based on the historical over-temperature times.

[0011] Specifically, the historical over-temperature data is determined based on the deviation between the temperature adjustment target and the actual temperature during the temperature control process. Specifically, the number of times the actual temperature exceeds the temperature adjustment target is used as the number of historical over-temperature times.

[0012] A further technical solution is that the method for determining the capacity switching matching type in the finalization stage is: Determining a change amount of the optimal hydrogen doping ratio between the finalization stage and the next finalization stage based on a change in the optimal hydrogen doping ratio between the finalization stage and the next finalization stage; Based on the historical overtemperature data at the optimal hydrogen blending ratio, determining the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage and the finalization stage next to the finalization stage; The capacity switching matching type of the finalization stage is determined according to the variation, the finalization stage, and the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage next to the finalization stage.

[0013] In a second aspect, the present application provides a natural gas hydrogen premixing control system for a setting machine, which adopts the above-mentioned natural gas hydrogen premixing control method for a setting machine, specifically comprising: Hydrogen production equipment, natural gas supply equipment, blending equipment, and shaping machines; The hydrogen production device and the natural gas supply device mix the natural gas and hydrogen through a pipeline and then enter the blending device; The blending device is responsible for storing and processing natural gas and hydrogen, and providing the blended natural gas and hydrogen to the forming machine; The shaping machine utilizes the mixed natural gas and hydrogen to perform heating treatment, and utilizes the heat generated by the heating treatment to perform shaping treatment on the shaping treatment target.

[0014] Furthermore, electric valves are provided in the pipelines of the hydrogen production device and the natural gas supply device before the blending process, and the electric valves are used to adjust the supply of hydrogen and natural gas.

[0015] The beneficial effects of the present invention are: Based on the changes in the optimal hydrogen blending ratio between the finalization stage and the next finalization stage, and combined with the historical temperature control data of the finalization machine under the optimal hydrogen blending ratio, the capacity switching matching types of different finalization stages are determined. This not only takes into account the differences in capacity adjustment needs caused by differences in changes, but also takes into account the historical temperature control data, and realizes the comprehensive consideration of the temperature regulation needs of the finalization machine in the current finalization stage after capacity adjustment and the over-temperature risk in the next finalization stage caused by no capacity adjustment. The capacity switching matching type is determined in combination with the needs of multiple finalization stages, which also lays the foundation for generating differentiated capacity adjustment processing strategies.

[0016] The adjustment strategy of the blending capacity in the finalization stage is determined based on the capacity switching matching type in the finalization stage, the capacity switching matching types in different finalization stages in the future, and the capacity adaptation interval. This avoids the technical problem of poor combustion stability caused by frequent capacity adjustments under different capacity switching matching types. In the finalization stage where the adjustment demand is relatively high, differentiated blending capacity adjustment processing is carried out in advance, thereby reducing the number of blending capacity adjustment processing times on the basis of ensuring the adjustment demand of the optimal hydrogen blending ratio of the blending capacity.

[0017] Other features and advantages will be described in the following description. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.

[0020] Figure 1 This is a flow chart of a natural gas hydrogen premixing control method applied to a setting machine; Figure 2 It is a flow chart of a method for determining the optimal hydrogen blending ratio in the finalization stage; Figure 3 It is a flow chart for determining the adjustment process of the blending amount of the blending device that needs to be performed; Figure 4 It is a flow chart of a method for determining a capacity switching matching type in a finalization phase; Figure 5 This is a framework diagram of a natural gas hydrogen premixing control system used in a setting machine. DETAILED DESCRIPTION

[0021] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this specification without creative work should fall within the scope of protection of this specification.

[0022] The optimal hydrogen blending ratio is the highest hydrogen blending ratio obtained when the average value of the historical over-temperature times in different sizing treatment times is within a preset time range.

[0023] When the historical number of over-temperatures of the optimal hydrogen blending ratio in the variable demand stage in the next finalization stage does not meet the requirements, the next finalization stage is determined to be a temperature control risk stage. When the number of temperature control risk stages is more than 2, it is determined that the blending amount of the blending device needs to be adjusted.

[0024] The shaping stage between the nearest first-class stage in the future is taken as the interval shaping stage. When the capacity switching matching type of the shaping stage is a first-class matching type, it is directly adjusted to the maximum value of the minimum endpoint value of the capacity adaptation interval in different interval shaping stages, and the mixing capacity in the interval shaping stage is maintained at the maximum value of the minimum endpoint value. When it does not belong to a first-class matching type, no adjustment is required.

[0025] Example 1 like Figure 1As shown, the present application provides a natural gas hydrogen premixing control method applied to a setting machine, specifically comprising: S1 determines the temperature control range in different shaping stages based on the shaping processing target of the shaping machine, and determines the optimal hydrogen doping ratio in the shaping stage according to the historical overtemperature data of different hydrogen doping ratios within the temperature control range; Furthermore, the shaping stage includes a heating stage, a thermal equilibrium stage, a molecular reconstruction stage and a cooling shaping stage.

[0026] Specifically, the temperature control range is determined according to the type of the shaping process target and parameter control requirements.

[0027] Specifically, the hydrogen blending ratio is the proportion of hydrogen in the mixed gas of natural gas and hydrogen consumed by the setting machine.

[0028] Specifically, the parameters include one or more of dimensional stability, molecular structure change, breaking strength and softness.

[0029] It should be noted that if Figure 2 As shown, the method for determining the optimal hydrogen doping ratio in the finalization stage is: Determine the number of historical overtemperatures at the hydrogen doping ratio according to historical overtemperature data within the temperature control range at different hydrogen doping ratios; An optimal hydrogen blending ratio in the finalization stage is determined based on the historical over-temperature times.

[0030] The specific historical over-temperature data is determined based on the deviation between the temperature adjustment target and the actual temperature during the temperature control process. Specifically, the number of times the actual temperature exceeds the temperature adjustment target is taken as the number of historical over-temperature times.

[0031] Specifically, the optimal hydrogen mixing ratio is determined by the highest hydrogen mixing ratio in a preset number range among the average values ​​of historical over-temperature times in different sizing treatment times.

[0032] Optionally, the method for determining the optimal hydrogen doping ratio in the finalization stage is: Determine the number of historical overtemperatures at the hydrogen doping ratio according to historical overtemperature data within the temperature control range at different hydrogen doping ratios; Based on the historical over-temperature times in different stereotyped processing times, determining the stereotyped processing times in which the historical over-temperature times are not within a preset number interval, and treating it as the over-temperature abnormality times; An optimal hydrogen blending ratio among the hydrogen blending ratios is determined according to the number of over-temperature anomalies.

[0033] It should be noted that the optimal hydrogen blending ratio is the highest hydrogen blending ratio when the number of over-temperature anomalies is within a preset anomaly number range.

[0034] S2 determines that the blending amount of the blending device needs to be adjusted based on the change of the optimal hydrogen blending ratio between the finalization stage and the next finalization stage and the historical overtemperature data of the optimal hydrogen blending ratio in the next finalization stage, and then proceeds to the next step; Specifically, such as Figure 3 As shown, it is determined that the blending amount of the blending device needs to be adjusted, specifically including: Determine the change amount of the optimal hydrogen doping ratio between different finalization stages and the next finalization stage based on the change of the optimal hydrogen doping ratio between different adjacent finalization stages; determining a variable demand stage in the finalization stage according to the variable amount, and determining a temperature control risk stage through historical overtemperature data of the optimal hydrogen blending ratio in the variable demand stage in a finalization stage next to different variable demand stages; Whether it is necessary to adjust the blending amount of the blending device is determined according to the number of the temperature control risk stages.

[0035] The specific change demand stage is a stage in which the change in the optimal hydrogen blending ratio between the next finalization stage is greater than a certain change threshold.

[0036] It should be noted that, when the historical number of over-temperatures at the optimal hydrogen blending ratio in the variable demand stage in the next finalization stage does not meet the requirements, the next finalization stage is determined to be the temperature control risk stage. Specifically, when the historical number of over-temperatures is not within the preset number range, it is determined that the historical number of over-temperatures does not meet the requirements.

[0037] It should be noted that when the number of temperature control risk stages is greater than the number of preset risk time periods, it is determined that the blending amount of the blending device needs to be adjusted.

[0038] In another possible embodiment, determining that the blending amount of the blending device needs to be adjusted specifically includes: Determining the amount of change in the optimal hydrogen blending ratio between different finalization stages and the next finalization stage based on the change in the optimal hydrogen blending ratio between different adjacent finalization stages, and determining the change requirement stage in the finalization stage based on the change; In a possible embodiment, if there is no change demand stage in the above steps, the change in the optimal hydrogen blending ratio between different finalization stages and the next finalization stage is small, so there is a risk of overheating in the next finalization stage. Therefore, it can be directly determined that there is no need to adjust the blending amount of the blending device.

[0039] In addition, if there are variable demand stages, it is also necessary to determine whether the number of variable demand stages meets the requirements. When the number of variable demand stages does not meet the requirements, that is, it is greater than a certain number threshold, the adjustment demand for the optimal hydrogen blending ratio is too high. Therefore, it can be directly determined that the blending amount of the blending device needs to be adjusted.

[0040] Furthermore, even if the number of variable demand stages meets the requirements, if the sum of the finalization processing time of the next finalization stage of the variable demand stage is too long, that is, greater than a certain time threshold, the demand for adjusting the optimal hydrogen blending ratio is too high at this time. Therefore, it can be directly determined that the blending amount of the blending device needs to be adjusted. Only when the above situations do not exist, proceed to the next step.

[0041] Determining the number of historical overtemperatures in the next finalization stage according to the historical overtemperature data of the optimal hydrogen blending ratio in the next finalization stage according to different variable demand stages; It should be noted that in the above steps, if the historical number of over-temperatures in the next shaping stage does not meet the required change demand stage, it is necessary to adjust the temperature of the shaping stage in time, so it can be directly determined that the mixing amount of the mixing device needs to be adjusted.

[0042] It should also be noted that if there is no variable demand stage in which the historical number of over-temperatures in the next finalization stage does not meet the requirements, it is necessary to determine whether the sum of the historical number of over-temperatures in different next finalization stages meets the requirements. Specifically, when the sum of the historical number of over-temperatures in different next finalization stages is too much, that is, greater than the preset threshold, in order to ensure the stability of combustion, it can also be determined that the mixing amount of the mixing device needs to be adjusted.

[0043] Whether the mixing amount of the mixing device needs to be adjusted is determined by the historical over-temperature times and the duration of the finalization process in the next finalization process of different change demand stages.

[0044] In a possible embodiment, the required value of the adjustment processing of the mixing amount in different next shaping stages is determined according to the historical number of over-temperatures and the shaping processing time in different next shaping stages. In a possible embodiment, it can be determined according to the product of the ratio of the historical number of over-temperatures to the preset value of the number of over-temperatures and the ratio of the shaping processing time to the preset shaping processing time.

[0045] It should be noted that when the sum of the demand values ​​for adjusting the mixing amount in different next finalization stages is greater than the preset demand value, the demand for adjusting the mixing amount of the mixing device is relatively high at this time, so it can be directly determined that the mixing amount of the mixing device needs to be adjusted.

[0046] S3 determines the change of the optimal hydrogen blending ratio between the finalization stage and the next finalization stage, and determines the capacity switching matching type of different finalization stages based on the historical temperature control data of the finalization machine under the optimal hydrogen blending ratio; Specifically, such as Figure 4 As shown, the method for determining the capacity switching matching type in the finalization stage is: Determining a change amount of the optimal hydrogen doping ratio between the finalization stage and the next finalization stage based on a change in the optimal hydrogen doping ratio between the finalization stage and the next finalization stage; Based on the historical overtemperature data at the optimal hydrogen blending ratio, determining the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage and the finalization stage next to the finalization stage; The capacity switching matching type of the finalization stage is determined according to the variation, the finalization stage, and the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage next to the finalization stage.

[0047] It is understandable that when the number of historical over-temperatures is too high, there is a greater need for temperature adjustment. Therefore, when adjusting the mixing capacity in the finalization stage, the mixing capacity becomes lower. If the mixing uniformity in the mixing tank is not high, it will inevitably lead to insufficient adjustment reliability. At the same time, when the number of historical over-temperatures is too high in the next finalization stage, if the mixing capacity is not adjusted, the combustion stability will also be poor. Therefore, the capacity switching matching type is determined by comprehensively considering multiple factors.

[0048] It should be noted that the capacity switching matching type in the finalization stage is determined based on the variation and the number of historical over-temperatures, specifically including: According to the matching of the historical number of over-temperatures at the optimal hydrogen blending ratio in the finalization stage, the historical number of over-temperatures at the optimal hydrogen blending ratio in the next finalization stage of the finalization stage, the change amount and the historical over-temperature number intervals and the change amount intervals of different preset switching matching types, the preset switching matching type in which the historical number of over-temperatures at the optimal hydrogen blending ratio in the finalization stage, the historical number of over-temperatures at the optimal hydrogen blending ratio in the next finalization stage of the finalization stage and the change amount all fall into the corresponding preset over-temperature number intervals and change amount intervals is used as the capacity switching matching type.

[0049] The preset over-temperature number intervals corresponding to the historical over-temperature number at the optimal hydrogen blending ratio in the finalization stage and the historical over-temperature number at the optimal hydrogen blending ratio in the next finalization stage after the finalization stage are inconsistent.

[0050] It should be noted that the capacity switching matching type includes the first matching type, the second matching type and the third matching type, wherein the capacity switching matching degree of the first matching type is greater than that of the second matching type, and the capacity switching matching degree of the second matching type is greater than that of the third matching type.

[0051] In another possible embodiment, the method for determining the capacity switching matching type in the finalization stage is: S31 determines a change amount of the optimal hydrogen doping ratio between the finalization stage and the next finalization stage based on a change in the optimal hydrogen doping ratio between the finalization stage and the next finalization stage; It should be noted that if the change in the optimal hydrogen blending ratio between the finalization stage and the next finalization stage is within the preset range, it means that the optimal hydrogen blending ratio at this time has been adjusted to a certain extent, and the process directly proceeds to the next step to determine the type of adjustment required in the finalization stage; It is understandable that if the change in the optimal hydrogen blending ratio between the finalization stage and the next finalization stage is within a preset range, if the change is too large, that is, greater than a fixed threshold, then if the capacity is not adjusted, it may lead to a deterioration in the overall combustion stability. Therefore, the capacity switching matching type is determined to be a Class I matching type.

[0052] In addition, if the change is not greater than the fixed threshold and is not within the preset range, even if the capacity is not adjusted, it will not affect the combustion stability. Therefore, the capacity switching matching type is determined to be the third matching type.

[0053] S32: determining the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage and in the finalization stage following the finalization stage based on the historical overtemperature data at the optimal hydrogen blending ratio; and determining the type of adjustment requirement for the finalization stage based on the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage and in the finalization stage following the finalization stage; In a possible embodiment, if the number of historical over-temperatures at the optimal hydrogen blending ratio in the next shaping stage of the shaping stage is greater or the number of historical over-temperatures at the optimal hydrogen blending ratio in the shaping stage is less, the number is specifically determined to be greater or less by a threshold. If no adjustment is made at this time, the combustion stability of the next stage will deteriorate, and the adjustment requirements of the current shaping stage will not be affected. Therefore, the capacity switching matching type can be determined to be a Class I matching type.

[0054] It should also be noted that if the historical number of over-temperatures at the optimal hydrogen blending ratio in the next shaping stage of the shaping stage is not large or the historical number of over-temperatures at the optimal hydrogen blending ratio in the shaping stage is too large, the specific number of over-temperatures determined by the threshold is not large or large. At this time, no adjustment will not lead to deterioration of the combustion stability in the next stage, and at the same time will affect the adjustment requirements of the current shaping stage. Therefore, it can be determined that the capacity switching matching type is the third matching type.

[0055] In other cases, in a possible embodiment, the correspondence between the historical number of over-temperatures at the optimal hydrogen blending ratio in the finalization stage and the historical number of over-temperatures at the optimal hydrogen blending ratio in the next finalization stage of the finalization stage is determined, and different preset adjustment demand types are determined. Specifically, the preset demand type in which the historical number of over-temperatures at the optimal hydrogen blending ratio in the finalization stage and the historical number of over-temperatures at the optimal hydrogen blending ratio in the next finalization stage of the finalization stage fall within the over-temperature number range under the preset adjustment demand type is used as the adjustment demand type for the finalization stage.

[0056] It should also be noted that the adjustment demand types in the finalization stage include type one demand and type two demand.

[0057] S33 determines the capacity switching matching type in the finalization stage according to the variation and the adjustment requirement type in the finalization stage.

[0058] Specifically, in a possible embodiment, based on the adjustment requirement type in the finalization stage, a preset change threshold under the adjustment requirement type is determined. When the change is greater than the preset change threshold, it means that it belongs to the second type of matching. In other cases, it belongs to the first type of matching.

[0059] It can be understood that the capacity adaptation interval in the prototyping stage is determined according to the optimal hydrogen doping ratio in the prototyping stage. Specifically, the matching capacity is determined according to the preset capacity corresponding to the optimal hydrogen doping ratio in the prototyping stage, and the capacity adaptation interval is constructed with the matching capacity as the lower limit. The larger the optimal hydrogen doping ratio, the larger the matching capacity.

[0060] In a possible embodiment, the optimal hydrogen blending ratio may be determined based on the correspondence between the optimal hydrogen blending ratio and different preset capacity adaptation intervals, specifically by determining the optimal hydrogen blending ratio to fall within the preset capacity adaptation interval corresponding to the preset ratio interval.

[0061] S4 determines the adjustment strategy of the blending capacity in the finalization stage based on the capacity switching matching type in the finalization stage and in combination with the capacity switching matching types and capacity adaptation intervals in different finalization stages in the future.

[0062] Specifically, the method for determining the adjustment strategy of the blending capacity in the finalization stage is: According to the capacity switching matching type of different future finalization stages, the finalization stage of the first matching type and the finalization stage of the second matching type in the future are determined and used as the first stage and the second stage; The interval between the stereotyped stage and the nearest stage in the future is regarded as the interval stereotyped stage; According to the number of future first-class and second-class stages and in combination with the capacity switching matching type of the finalization stage, the adjustment strategy of the blending capacity in the finalization stage is determined.

[0063] It should be noted that when the capacity switching matching type in the finalization stage is a Class I matching type, when there is no Class I stage, it means that there is no finalization stage with a large capacity adjustment demand in the later stage. Therefore, on this basis, when the number of Class II stages in the later stage is greater than the preset Class II stage number threshold, it is directly adjusted to the maximum value of the endpoint minimum value of the capacity adaptation interval in different interval finalization stages, and the mixing capacity in the interval finalization stage is maintained at the maximum value of the said endpoint minimum value.

[0064] When the number of the second-class stages in the later stage is not greater than the preset second-class stage number threshold, there is no need to adjust the blending capacity, and the blending capacity can also be adjusted by the preset target adjustment amount.

[0065] When a type of stage exists, it indicates that there will be a finalization stage with a greater demand for capacity adjustment in the later stage. Therefore, in the finalization stage, it is directly adjusted to the maximum value of the minimum endpoint value of the capacity adaptation interval in different interval finalization stages, and the mixing capacity in the interval finalization stage is maintained at the maximum value of the minimum endpoint value.

[0066] It can be understood that when the capacity switching matching type in the finalization stage is the second-class matching type, it is necessary to determine whether there is a first-class stage or a second-class stage in the later stage. When there is no first-class stage or second-class stage, there is no need to adjust the mixing capacity.

[0067] When there is a type one stage, in the finalization stage, the blending capacity is adjusted according to the maximum value of the blending capacity that can be adjusted by the type two matching, and the adjustment result is maintained at the blending capacity in the interval finalization stage.

[0068] It can be understood that the maximum value of the mixing capacity that can be adjusted by the second type of matching is determined according to the deviation of the optimal hydrogen mixing ratio between the finalization stage and the next finalization stage, and specifically determined according to the preset maximum adjustment amount corresponding to the deviation.

[0069] It should also be noted that if the mixing amount after adjustment by the preset maximum adjustment amount corresponding to the deviation amount is less than the minimum value of the endpoint of the capacity adaptation interval in the finalization stage between the next Class II stage, it will be directly adjusted to the maximum value of the minimum value of the endpoint of the capacity adaptation interval in different interval finalization stages, and the mixing capacity in the finalization stage between the next Class II stage will be maintained at the maximum value of the minimum value of the endpoint.

[0070] When there is no Class I stage and only Class II stage exists, when the number of Class II stages in the later stage is greater than the preset Class II stage number threshold, the mixing capacity is adjusted according to the maximum value of the mixing capacity that can be adjusted by the Class II matching type to obtain an adjustment result, and the adjustment result is maintained in the later finalization stage. When the number of Class II stages in the later stage is not greater than the preset Class II stage number threshold, there is no need to adjust the mixing capacity or the mixing capacity is adjusted by the preset target adjustment amount.

[0071] When the capacity switching matching type in the finalization stage is the third matching type, it is determined that the blending capacity adjustment process does not need to be performed in the finalization stage.

[0072] Example 2 Second, as Figure 5 As shown, the present application provides a natural gas hydrogen premixing control system applied to a setting machine, which adopts the above-mentioned natural gas hydrogen premixing control method applied to a setting machine, specifically including: Hydrogen production equipment, natural gas supply equipment, blending equipment, and shaping machines; The hydrogen production device and the natural gas supply device mix the natural gas and hydrogen through a pipeline and then enter the blending device; The blending device is responsible for storing and processing natural gas and hydrogen, and providing the blended natural gas and hydrogen to the forming machine; The shaping machine utilizes the mixed natural gas and hydrogen to perform heating treatment, and utilizes the heat generated by the heating treatment to perform shaping treatment on the shaping treatment target.

[0073] Furthermore, electric valves are provided in the pipelines of the hydrogen production device and the natural gas supply device before the blending process, and the electric valves are used to adjust the supply of hydrogen and natural gas.

[0074] It should also be noted that the electric valve is provided with an Internet of Things communication device, and the electric valve is controlled by using the adjustment instructions of the mixing capacity generated by the remote server.

[0075] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device, apparatus, and non-volatile computer storage medium embodiments are generally similar to the method embodiments, so their descriptions are relatively simplified. For relevant details, refer to the descriptions of the method embodiments.

[0076] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0077] The foregoing description is merely one or more embodiments of this specification and is not intended to limit this specification. It will be apparent to those skilled in the art that various modifications and variations may be made to one or more embodiments of this specification. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of one or more embodiments of this specification are intended to be within the scope of the claims of this specification.

Claims

1. A natural gas hydrogen premixing control method applied to a setting machine, characterized in that: Specifically include: Based on the shaping process target of the shaping machine, the temperature control range in different shaping stages is determined, and the optimal hydrogen doping ratio in the shaping stage is determined according to the historical over-temperature data within the temperature control range at different hydrogen doping ratios; When it is determined that the blending amount of the blending device needs to be adjusted based on the change in the optimal hydrogen blending ratio between the finalization stage and the next finalization stage and the historical overtemperature data of the optimal hydrogen blending ratio in the next finalization stage, the next step is entered; Determine the change in the optimal hydrogen blending ratio between the finalization stage and the next finalization stage, and determine the capacity switching matching type for different finalization stages based on the historical temperature control data of the finalization machine at the optimal hydrogen blending ratio; Based on the capacity switching matching type in the finalization stage and in combination with the capacity switching matching types and capacity adaptation intervals in different finalization stages in the future, an adjustment strategy for the blending capacity in the finalization stage is determined.

2. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The shaping stage includes a heating stage, a thermal equilibrium stage, a molecular reconstruction stage and a cooling shaping stage.

3. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The temperature control range is determined according to the type of the shaping treatment target and the parameter control requirements.

4. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The hydrogen blending ratio is the proportion of hydrogen in the mixed gas of natural gas and hydrogen consumed by the setting machine.

5. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The parameters include one or more of dimensional stability, molecular structure change, breaking strength and softness.

6. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The method for determining the optimal hydrogen mixing ratio in the finalization stage is: Determine the number of historical overtemperatures at the hydrogen doping ratio according to historical overtemperature data within the temperature control range at different hydrogen doping ratios; Determining the optimal hydrogen blending ratio in the finalization stage based on the historical over-temperature times; The specific historical over-temperature data is determined based on the deviation between the temperature adjustment target and the actual temperature during the temperature control process. Specifically, the number of times the actual temperature exceeds the temperature adjustment target is taken as the number of historical over-temperature times.

7. The natural gas hydrogen premixing control method for a setting machine according to claim 6, characterized in that: The optimal hydrogen mixing ratio is determined by taking the highest hydrogen mixing ratio among the average values ​​of the historical over-temperature times in different sizing treatment times within a preset number range.

8. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The method for determining the capacity switching matching type in the finalization stage is: Determining a change amount of the optimal hydrogen doping ratio between the finalization stage and the next finalization stage based on a change in the optimal hydrogen doping ratio between the finalization stage and the next finalization stage; Based on the historical overtemperature data at the optimal hydrogen blending ratio, determining the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage and the finalization stage next to the finalization stage; The capacity switching matching type of the finalization stage is determined according to the variation, the finalization stage, and the number of historical overtemperatures at the optimal hydrogen blending ratio in the finalization stage next to the finalization stage.

9. The natural gas hydrogen premixing control method for a setting machine according to claim 1, characterized in that: The method for determining the adjustment strategy of the blending capacity in the finalization stage is: According to the capacity switching matching type of different future finalization stages, the finalization stage of the first matching type and the finalization stage of the second matching type in the future are determined and used as the first stage and the second stage; The interval between the stereotyped stage and the nearest stage in the future is regarded as the interval stereotyped stage; According to the number of future first-class stages and second-class stages and in combination with the capacity switching matching type of the finalization stage, the adjustment strategy of the blending capacity in the finalization stage is determined.

10. A natural gas hydrogen premixing control system for a forming machine, using a natural gas hydrogen premixing control method for a forming machine according to any one of claims 1 to 9, characterized in that: Specifically include: Hydrogen production equipment, natural gas supply equipment, blending equipment, and shaping machines; The hydrogen production device and the natural gas supply device mix the natural gas and hydrogen through a pipeline and then enter the blending device; The blending device is responsible for storing and processing natural gas and hydrogen, and providing the blended natural gas and hydrogen to the forming machine; The shaping machine utilizes the mixed natural gas and hydrogen to perform heating treatment, and utilizes the heat generated by the heating treatment to perform shaping treatment on the shaping treatment target.

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