On-site self-powered electronic special gas preparation treatment method and device

Abstract

The invention provides an on-site self-powered electronic special gas preparation treatment method and device, and belongs to the technical field of air separation treatment.The on-site self-powered electronic special gas preparation treatment device specifically comprises an energy supply module, a gas compression module and a gas preparation module, the energy supply module comprises an energy storage device and a photovoltaic device and is used for supplying energy to the gas compression module and the gas preparation module, and the gas compression module is responsible for compressing raw gas; the gas is conveyed to the gas preparation module; and the gas preparation module is responsible for carrying out adsorption and desorption operation on the gas under different pressures by applying a vacuum pressure swing adsorption process, so that nitrogen in the compressed raw material gas is separated out, and possibility is provided for building a mobile laboratory.

Description

Technical Field

[0001] The present invention belongs to the technical field of air separation and processing, and in particular relates to an on-site self-powered electronic special gas preparation and processing method and device. Background Art

[0002] In electronic special gas research centers and laboratories, there is an urgent need for high-purity nitrogen as a packaging gas source. The existing technical solution CN202023214052.9 "A purifier for electronic special gas processing" provides a nitrogen purification treatment solution.

[0003] However, the above technical solutions often make the traditional nitrogen production method often rely on the centralized gas supply system, which has problems such as high transportation costs and poor gas supply flexibility. At the same time, these systems usually require an external stable mains power supply, which is difficult to meet the use needs of some remote areas or places with unstable power supply. Therefore, it is of great significance to develop a technology that can be self-powered on-site and flexibly produce high-purity nitrogen.

[0004] In response to the above technical problems, the present application specifically provides an on-site self-powered electronic special gas preparation and processing method and device. Summary of the invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: In the first aspect, the present application provides an on-site self-powered electronic special gas preparation and processing method, which specifically includes: S1 determines the deviation of nitrogen production data in different periods under different similar power generation dates based on the remaining capacity of the energy storage device and the load forecast data of the photovoltaic device in the remaining period of the current date, and determines the deviation period of production under different similar power generation dates using the deviation; S2 determines the data of different time periods belonging to the production deviation period in different similar power generation dates, and combines the deviation of nitrogen production data in different production deviation periods to determine that the current period can be used for nitrogen production processing, and then proceeds to the next step; S3: when it is determined based on the load forecast data of the current period that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements, proceed to the next step; S4 determines the fluctuation of the load forecast data in the current period, and determines the power supply processing strategy of the nitrogen production equipment in combination with the deviation of the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, and uses the nitrogen production equipment to produce nitrogen.

[0006] The beneficial effects of the present invention are: Based on the load forecast data for the current period, it is determined whether the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period meets the requirements, thereby avoiding the technical problem of the purity and production amount of nitrogen not meeting the requirements caused by the direct power supply treatment of the nitrogen production equipment using the photovoltaic device. It also lays the foundation for generating differentiated power supply processing strategies based on the differences in load forecast data, and ensures the reliability of nitrogen production processing.

[0007] The power supply processing strategy of the nitrogen production equipment is determined based on the fluctuation of the load forecast data in the current period and the deviation of the load forecast data from the rated load of the gas compression module of the nitrogen production equipment. This not only takes into account the impact on the life of the energy storage device during power supply processing due to the fluctuation of the load forecast data, but also takes into account the difference in the degree of power supply matching with the gas compression module due to the deviation from the rated load of the gas compression module. This realizes the determination of the power supply processing strategy from multiple angles. While reducing the impact on the service life of the energy storage device, it also ensures the reliability of the power supply processing of the gas compression module.

[0008] A further technical solution is that the load forecast data of the photovoltaic device is determined according to the amount of sunlight at different time periods of the current date. A further technical solution is that the similar power generation date is a historical date whose deviations from the load forecast data of the photovoltaic device in different time periods of the current date are all within a preset deviation range.

[0009] A further technical solution is that the deviation of the nitrogen production data is determined according to the nitrogen production amount and the purity of the nitrogen production at different times.

[0010] A further technical solution is that the method for determining the deviation period under the similar power generation date is: Based on the nitrogen production data in the time period, determining the nitrogen production amount and the purity of the nitrogen production at different times in the time period; Determine the nitrogen production deviation time in the time by using the nitrogen production amount and the purity of the nitrogen production; Whether the time period is a nitrogen production deviation time period is determined according to the proportion of the number of nitrogen production deviation moments in the time period.

[0011] A further technical solution is that the nitrogen production deviation moment is the moment when any one of the nitrogen production amount and the purity of the nitrogen production does not meet the requirements.

[0012] In a second aspect, the present invention provides an on-site self-powered electronic special gas production device, which adopts the above-mentioned on-site self-powered electronic special gas production method and specifically includes: Energy supply module, gas compression module, gas production module; The energy supply module includes an energy storage device and a photovoltaic device, and is used for energy supply processing of the gas compression module and the gas production module; The gas compression module is responsible for compressing the raw gas and delivering it to the gas production module; The gas production module is responsible for separating nitrogen from the compressed raw material gas by using a vacuum pressure swing adsorption process to adsorb and desorb the gas at different pressures.

[0013] A further technical solution is that the photovoltaic device has a three-dimensional structure, wherein a single-axis or dual-axis tracking system is used on the fixed structure of the photovoltaic panel of the photovoltaic device, so that the photovoltaic panel can rotate as the direction of sunlight changes.

[0014] A further technical solution is that the gas compression module is constructed using a low-power compressor whose rated power is less than a preset power threshold.

[0015] Other features and advantages will be described in the following description. The objects and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and drawings.

[0016] 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

[0017] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings; Figure 1 It is a flow chart of a method for preparing and processing a field self-powered electronic special gas; Figure 2 It is a flow chart of a method for determining a deviation period under similar power generation dates; Figure 3 It is a flow chart for determining the nitrogen production process that can be carried out in the current period; Figure 4 is a flow chart of a method for determining a power supply processing strategy for a nitrogen production device; Figure 5 It is a framework diagram of an on-site self-powered electronic special gas production device. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0019] In electronic special gas research centers and laboratories, there is an urgent need for high-purity nitrogen as a packaging gas source. Traditional nitrogen production methods often rely on centralized gas supply systems, which have problems such as high transportation costs and poor gas supply flexibility. At the same time, these systems usually require an external stable AC power supply, which is difficult to meet the needs of some remote areas or places with unstable power supply. Therefore, it is of great significance to develop a technology that can be self-powered on-site and flexibly produce high-purity nitrogen.

[0020] One of the on-site direct-powered electronic special gas preparation and processing devices includes the following: Energy supply module: A three-dimensional expandable photovoltaic device is used. Photovoltaic panels are combined with high-efficiency solar cell technologies such as PERC and HJT to improve power generation efficiency. The panel has a three-dimensional structure, which can maximize the reception of solar energy in a limited space, and can be expanded according to actual needs to further increase the light-receiving area. A single-axis or dual-axis tracking system is used on the photovoltaic panel fixed structure, so that the photovoltaic panel can rotate with the change of sunlight direction, increasing the efficiency of sunlight absorption. Its advantage is that it can adapt to different site conditions and energy needs, efficiently collect solar energy and convert it into electrical energy under sufficient sunlight, and provide stable power support for the entire production system. At the same time, an additional battery pack is added as an energy storage device, using a fast-charging lithium battery pack. The purpose of this module is to maintain a long-term energy supply when the nitrogen production equipment is working, and it can quickly fill the battery and enhance versatility. The additional battery pack is designed as a detachable module and is equipped with additional spare parts for easy transportation and replacement.

[0021] Gas compression module: Use low-power compressor. Since the system is powered by solar energy + battery pack, the low-power compressor can better match the power supply capacity of the photovoltaic device, while ensuring the gas compression effect and reducing energy consumption. It will initially compress raw gas such as air to prepare for the subsequent vacuum pressure swing adsorption process.

[0022] Gas preparation module: Using vacuum pressure swing adsorption technology. By adsorbing and desorbing the gas at different pressures, the nitrogen in the compressed raw gas is separated. This process can effectively remove impurities and ultimately generate nitrogen with a purity of up to 99.9999%, meeting the strict requirements of electronic special gas research and laboratories for high-purity packaging gas sources.

[0023] Advantages of system construction: The entire production system has the characteristics of mobile on-site construction. Each module is compactly designed for easy transportation and installation. It can be quickly built on site according to the actual site and needs, realizing on-site nitrogen production without relying on complex external infrastructure.

[0024] When any one of the total amount of nitrogen produced in the time period and the average purity of nitrogen produced does not meet the requirements, the time period is determined to be a production deviation period.

[0025] The data of production deviation periods in different similar power generation dates in different time periods are used to determine the proportion of the number of dates in different time periods that belong to the production deviation periods in different similar power generation dates, and the focus deviation period in the time period is determined by using the proportion of the number of dates, the deviation of the nitrogen production data of the focus deviation period in the corresponding production deviation period is obtained, and the average purity of nitrogen production in different corresponding production deviation periods is determined. When the average value of the average purity of nitrogen production in different corresponding production deviation periods is less than the preset purity setting value and the number of focus deviation periods is greater than the preset number of focus deviation periods, it is determined that nitrogen production processing cannot be carried out in the current time period.

[0026] A historical period in which the deviations of the load forecast data at different moments in the current period meet the requirements is taken as a reference period, and the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the reference period is used to determine the average purity of nitrogen production and the amount of nitrogen production in different reference periods. When the average purity of nitrogen production and the amount of nitrogen production in different reference periods are within a preset range, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period meets the requirements.

[0027] Based on the fluctuation of the load forecast data in the current period, the change amount of the load forecast data between different times in the current period is determined, and the charging influence coefficient of the energy storage device in the current period is determined by using the proportion of time when the change amount is not within the preset change range; Using the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, determine the proportion of time when the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment is not within the preset load deviation range, and use it as the matching deviation coefficient of the gas compression module; Based on the ratio of the charging influence coefficient to the matching deviation coefficient, the load matching coefficient of the load prediction data is determined. When the load matching coefficient is less than a preset matching coefficient threshold, the energy storage device is used to power the nitrogen production equipment, and the electric energy of the photovoltaic device is used for charging the energy storage device. When the load matching coefficient is not less than the preset matching coefficient threshold, the photovoltaic device is used to power the gas compression module, and the energy storage device is used to power other modules except the gas compression module.

[0028] Example 1 Figure 1 As shown, the present application provides an on-site self-powered electronic special gas preparation and processing method, which specifically includes: S1 determines the deviation of nitrogen production data in different periods under different similar power generation dates based on the remaining capacity of the energy storage device and the load forecast data of the photovoltaic device in the remaining period of the current date, and determines the deviation period of production under different similar power generation dates using the deviation; Furthermore, the load forecast data of the photovoltaic device is determined according to the amount of sunlight at different time periods of the current date. It should be noted that the similar power generation date is a historical date whose deviations from the load forecast data of the photovoltaic device in different time periods of the current date are all within a preset deviation range.

[0029] It is understandable that the deviation of the nitrogen production data is determined according to the nitrogen production amount and the purity of the nitrogen production at different times.

[0030] Specifically, Figure 2 As shown, the method for determining the deviation period under the similar power generation date is: Based on the nitrogen production data in the time period, determining the nitrogen production amount and the purity of the nitrogen production at different times in the time period; Determine the nitrogen production deviation time in the time by using the nitrogen production amount and the purity of the nitrogen production; Whether the time period is a nitrogen production deviation time period is determined according to the proportion of the number of nitrogen production deviation moments in the time period.

[0031] Furthermore, the nitrogen production deviation moment is the moment when any one of the nitrogen production amount and the nitrogen production purity does not meet the requirements.

[0032] It can be understood that when the proportion of the number of nitrogen production deviation moments in the time period is greater than the proportion of the number of preset moments, the time period is determined to be a production deviation time period.

[0033] Optionally, the method for determining the deviation period under the similar power generation date is: Based on the nitrogen production data in the time period, determining the nitrogen production amount and the purity of the nitrogen production at different times in the time period; Based on the nitrogen production amount and the purity of the nitrogen production at different times, determine the total amount of nitrogen production in the time period and the average purity of the nitrogen production; Whether the period is a production deviation period is determined according to the total amount of nitrogen produced in the period and the average purity of the nitrogen produced.

[0034] Furthermore, when any one of the total amount of nitrogen produced in the time period and the average purity of nitrogen produced does not meet the requirements, the time period is determined to be a production deviation period.

[0035] Optionally, the method for determining the deviation period under the similar power generation date is: Based on the nitrogen production data in the time period, determining the nitrogen production amount and the purity of the nitrogen production at different times in the time period, and based on the nitrogen production amount and the purity of the nitrogen production at different times, determining the total nitrogen production amount and the average purity of the nitrogen production in the time period, when any one of the total nitrogen production amount and the average purity of the nitrogen production in the time period does not meet the requirements, determining the time period as a production deviation time period; When the total amount of nitrogen produced during the period and the average purity of nitrogen produced meet the requirements: According to the purity of nitrogen produced at different times, it is determined that the purity of nitrogen produced in the time period is less than the nitrogen produced amount of the preset purity threshold value; when the purity of nitrogen produced in the time period is less than the nitrogen produced amount of the preset purity threshold value and does not meet the requirement, the time period is determined to be a production deviation time period; When the purity of nitrogen produced in the time period is less than the preset purity threshold, the nitrogen produced meets the requirement: When it is determined that there is no nitrogen production deviation moment in the moment by using the nitrogen production amount and the purity of the nitrogen production, it is determined that the time period does not belong to the production deviation time period; When there is a nitrogen production deviation moment in the said moments: Obtaining the number ratio of the nitrogen production deviation moments, and when the number ratio of the nitrogen production deviation moments does not meet the requirement, determining that the time period belongs to the production deviation time period; When the number ratio of the nitrogen production deviation time meets the requirements: Determine the nitrogen production deviation coefficients at different nitrogen production deviation moments according to the deviations between the nitrogen production amounts at different nitrogen production deviation moments and the preset nitrogen production amounts, and the deviations between the purity of the nitrogen production and the preset purity threshold value; when the number of nitrogen production deviation moments at which the nitrogen production deviation coefficient is greater than the preset deviation coefficient threshold value does not meet the requirement, determine that the time period belongs to the production deviation time period; When the number of nitrogen production deviation moments where the nitrogen production deviation coefficient is greater than the preset deviation coefficient threshold meets the requirement: The total amount of nitrogen produced and the average purity of nitrogen produced are obtained, and the production abnormality value of the time period is determined in combination with the nitrogen production deviation coefficient at different nitrogen production deviation moments, and the production abnormality value is used to determine whether the time period is a production deviation period.

[0036] Optionally, when the production abnormality value of the time period is greater than a preset production abnormality threshold, the time period is determined to be a production deviation time period.

[0037] S2 determines the data of different time periods belonging to the production deviation period in different similar power generation dates, and combines the deviation of nitrogen production data in different production deviation periods to determine that the current period can be used for nitrogen production processing, and then proceeds to the next step; Specifically, Figure 3 As shown, it is determined that nitrogen can be produced in the current period, specifically including: Using the data of different time periods belonging to the deviation making period in different similar power generation dates, determining the proportion of the number of dates belonging to the deviation making period in different time periods in different similar power generation dates, and determining the concerned deviation period in the time period using the proportion of the number of dates; Obtaining the deviation of the nitrogen production data in the concerned deviation period in the corresponding production deviation period, and determining the average purity of nitrogen production in different corresponding production deviation periods; Based on the average value of the average purity of nitrogen produced in different corresponding production deviation periods in each focus deviation period, it is determined whether nitrogen production processing can be performed in the current period.

[0038] Furthermore, the focus deviation period is a period in which the proportion of the number of dates is greater than a set value of the proportion of the number.

[0039] It should be noted that, based on the average value of the average purity of nitrogen produced in different corresponding production deviation periods in each concerned deviation period, determining whether nitrogen production processing can be performed in the current period specifically includes: When the average value of the average purity of nitrogen produced in different corresponding production deviation time periods is less than the preset purity setting value, and the number of concerned deviation time periods is greater than the preset number of concerned deviation time periods, it is determined that nitrogen production processing cannot be performed in the current time period.

[0040] Furthermore, when the nitrogen production process cannot be performed in the current period, the photovoltaic device is used to charge the energy storage device.

[0041] In another possible embodiment, determining whether nitrogen production can be performed in the current time period specifically includes: Using the data of different time periods belonging to the deviation making period in different similar power generation dates, determining the proportion of the number of dates belonging to the deviation making period in different time periods in different similar power generation dates, and using the proportion of the number of dates to determine the abnormal weight coefficient of the different time periods; Obtaining the deviation of the nitrogen production data in the concerned deviation period in the corresponding production deviation period, determining the average purity of the nitrogen production in different corresponding production deviation periods, and determining the production deviation coefficients of different periods according to the average value of the average purity of the nitrogen production in different corresponding production deviation periods; The comprehensive production deviation coefficient is determined by the sum of the products of the abnormal weight coefficients and the production deviation coefficients in different time periods, and the comprehensive production deviation coefficient is used to determine whether nitrogen production processing can be performed in the current time period.

[0042] Further, when the comprehensive production deviation coefficient is greater than a preset production deviation coefficient threshold, it is determined that the production process of nitrogen cannot be performed in the current time period.

[0043] Optionally, determining whether nitrogen production can be performed in the current time period specifically includes: Obtaining the percentage of the number of production deviation periods in different similar power generation dates, and when the average value of the percentage of the number of production deviation periods in different similar power generation dates does not meet the requirements, determining that the current period cannot be used for nitrogen production; When the average value of the number of deviation periods in different similar power generation dates meets the requirements: Determine similar power generation dates whose number of production deviation periods does not meet the requirement as production deviation dates, and when the number of production deviation dates does not meet the requirement, determine that nitrogen production processing cannot be performed in the current period; When the number of deviation dates meets the requirement: The data of different time periods belonging to the production deviation period in different similar power generation dates are used to determine the proportion of the number of dates in different time periods belonging to the production deviation period in different similar power generation dates, and the abnormal weight coefficients of different time periods are determined by using the proportion of the number of dates. When the abnormal weight coefficients of different time periods all meet the requirements, it is determined that the current time period can be used for nitrogen production processing; When there is a period where the abnormal weight coefficient does not meet the requirements: Obtaining the number of time periods in which the abnormal weight coefficient does not meet the requirements, when the number of time periods in which the abnormal weight coefficient does not meet the requirements is greater than a preset abnormal time period number threshold, determining that the current time period cannot be used for nitrogen production processing; When the number of time periods in which the abnormal weight coefficient does not meet the requirements is not greater than the preset abnormal time period number threshold: Obtaining the deviation of the nitrogen production data in the concerned deviation period in the corresponding production deviation period, determining the average purity of the nitrogen production in different corresponding production deviation periods, and determining the production deviation coefficients of different periods according to the average value of the average purity of the nitrogen production in different corresponding production deviation periods; The comprehensive production deviation coefficient is determined by the sum of the products of the abnormal weight coefficients and the production deviation coefficients in different time periods, and the comprehensive production deviation coefficient is used to determine whether nitrogen production processing can be performed in the current time period.

[0044] S3: when it is determined based on the load forecast data of the current period that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements, proceed to the next step; Specifically, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements, including: The historical period in which the deviation of the load forecast data at different times from the current period meets the requirements is used as the reference period; Determine the average purity and amount of nitrogen produced in different reference time periods by using the deviation of nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the reference time period; Based on the average purity and amount of nitrogen produced in different reference time periods, determine whether the deviation of nitrogen production data when photovoltaic devices are used to directly power the nitrogen production equipment in the current period meets the requirements.

[0045] Furthermore, when the average purity and amount of nitrogen production in different reference time periods are within a preset range, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current time period meets the requirements.

[0046] It should be noted that when the deviation of the nitrogen production data meets the requirements when the photovoltaic device is used to directly power the nitrogen production equipment in the current period, the photovoltaic device is used to directly power the nitrogen production equipment in the current period.

[0047] It is understandable that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements, specifically including: S31 takes the historical period in which the deviation of the load forecast data at different times from the current period meets the requirements as the reference period; S32 determines the nitrogen production purity and nitrogen production amount at different times in different reference time periods by using the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the reference time period, and determines the nitrogen production deviation amount in different reference time periods by using the deviation amount of the nitrogen production purity at different times from the preset nitrogen production amount and the deviation amount of the nitrogen production purity from the preset purity threshold; S33 determines a comprehensive production deviation based on the nitrogen production deviations in different reference time periods, and uses the comprehensive production deviation to determine whether the deviation of nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current time period meets the requirements.

[0048] Furthermore, the comprehensive production deviation is an average value of nitrogen production deviations in different reference time periods.

[0049] It should also be noted that when the comprehensive production deviation is within the preset deviation range, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used directly to power the nitrogen production equipment in the current period does not meet the requirements.

[0050] Optionally, the above step S31 includes the following contents: S311 takes the historical period in which the deviation amount of the load forecast data at different moments of the current period meets the requirements as the reference period, and uses the average purity of nitrogen production and the amount of nitrogen production in different reference periods to determine that there is a reference period in which any one of the average purity of nitrogen production and the amount of nitrogen production does not meet the requirements, then proceeds to step S312; when the average purity of nitrogen production and the amount of nitrogen production in different reference periods meet the requirements, then proceeds to step S313; S312: taking the reference period in which any one of the average purity of nitrogen production and the amount of nitrogen production does not meet the requirements as the reference period for screening deviations; when the number of reference periods for screening deviations does not meet the requirements, determining that the deviation of nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements; when the number of reference periods for screening deviations meets the requirements, proceeding to step S313; S313 determines the nitrogen production reliability coefficients of different reference time periods based on the average purity and nitrogen production amount in different reference time periods. When the average values ​​of the nitrogen production reliability coefficients of different reference time periods do not meet the requirements, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current time period does not meet the requirements. When the average values ​​of the nitrogen production reliability coefficients of different reference time periods meet the requirements, proceed to step S32.

[0051] Optionally, the above step S32 includes the following contents: S321 determines the nitrogen production purity and nitrogen production amount at different times in different reference time periods by using the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the reference time period, and determines the nitrogen production deviation amount in different reference time periods by using the deviation amount of the nitrogen production purity at different times from the preset nitrogen production amount and the deviation amount of the nitrogen production purity from the preset purity threshold; S322: when there is a reference period in which the deviation of nitrogen production does not meet the requirement, it is determined that the deviation of nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirement; when there is no reference period in which the deviation of nitrogen production does not meet the requirement, the process proceeds to step S323; S323: taking the reference period of the nitrogen production deviation within the preset production deviation range as the suspected production deviation period, and when there is no suspected production deviation period, determining that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period meets the requirements, and when there is a suspected production deviation period, proceeding to step S324; S324 When the number of suspected production deviation time periods is greater than the preset production deviation time period number threshold, it is determined that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current time period does not meet the requirements. When the number of suspected production deviation time periods is not greater than the preset production deviation time period number threshold, proceed to step S33.

[0052] S4 determines the fluctuation of the load forecast data in the current period, and determines the power supply processing strategy of the nitrogen production equipment in combination with the deviation of the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, and uses the nitrogen production equipment to produce nitrogen.

[0053] Furthermore, the fluctuation of the load forecast data includes the variation of the load forecast data between different adjacent moments.

[0054] Specifically, Figure 4 As shown, the method for determining the power supply processing strategy of the nitrogen production equipment is: Based on the fluctuation of the load forecast data in the current period, the change amount of the load forecast data between different times in the current period is determined, and the charging influence coefficient of the energy storage device in the current period is determined by using the proportion of time when the change amount is not within the preset change range; Using the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, determine the proportion of time when the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment is not within the preset load deviation range, and use it as the matching deviation coefficient of the gas compression module; Based on the ratio of the charging influence coefficient to the matching deviation coefficient, a load matching coefficient of the load forecast data is determined, and the power supply processing strategy of the nitrogen production equipment is determined using the load matching coefficient.

[0055] Further, the power supply processing strategy of the nitrogen production equipment is determined by using the load matching coefficient, which specifically includes: When the load matching coefficient is less than the preset matching coefficient threshold, the energy storage device is used to power the nitrogen production equipment, and the electric energy of the photovoltaic device is used for charging the energy storage device; When the load matching coefficient is not less than a preset matching coefficient threshold, the photovoltaic device is used to power the gas compression module, and the energy storage device is used to power the modules other than the gas compression module.

[0056] Embodiment 2 The second aspect, as Figure 5 As shown, the present invention provides an on-site self-powered electronic special gas production device, which adopts the above-mentioned on-site self-powered electronic special gas production method, specifically comprising: Energy supply module, gas compression module, gas production module; The energy supply module includes an energy storage device and a photovoltaic device, and is used for energy supply processing of the gas compression module and the gas production module; The gas compression module is responsible for compressing the raw gas and transporting it to the gas production module; The gas production module is responsible for separating nitrogen from the compressed raw material gas by using a vacuum pressure swing adsorption process to adsorb and desorb the gas at different pressures.

[0057] Furthermore, the photovoltaic device has a three-dimensional structure, wherein a single-axis or dual-axis tracking system is used on the fixed structure of the photovoltaic panel of the photovoltaic device, so that the photovoltaic panel can rotate as the direction of sunlight changes.

[0058] It should be noted that the gas compression module is constructed using a low-power compressor with a rated power less than a preset power threshold.

[0059] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0060] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0061] The above description is only one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of this specification.

Claims

1. A method for preparing and processing electronic special gas by self-powered on-site, characterized in that: Specifically include: Based on the remaining capacity of the energy storage device and the load forecast data of the photovoltaic device in the remaining period of the current date, the deviation of the nitrogen production data in different periods under different similar power generation dates is determined, and the deviation period of production under different similar power generation dates is determined by using the deviation; Determine the data of different time periods belonging to the production deviation period in different similar power generation dates, and combine the deviation of nitrogen production data in different production deviation periods to determine that the current period can be used for nitrogen production, and then proceed to the next step; When it is determined according to the load forecast data of the current period that the deviation of the nitrogen production data when the photovoltaic device is used to directly power the nitrogen production equipment in the current period does not meet the requirements, proceed to the next step; Determine the fluctuation of the load forecast data in the current period, and determine the power supply processing strategy of the nitrogen production equipment in combination with the deviation of the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, and use the nitrogen production equipment to produce nitrogen.

2. The on-site self-powered electronic special gas preparation and processing method according to claim 1, characterized in that: The load forecast data of the photovoltaic device is determined according to the amount of sunlight at different time periods of the current date.

3. The on-site self-powered electronic special gas preparation and processing method according to claim 1, characterized in that: The similar power generation date is a historical date whose deviations from the load forecast data of the photovoltaic device at different time periods of the current date are all within a preset deviation range.

4. The on-site self-powered electronic special gas preparation and processing method according to claim 1, characterized in that: The method for determining the deviation period under the similar power generation date is: Based on the nitrogen production data in the time period, determining the nitrogen production amount and the purity of the nitrogen production at different times in the time period; Determine the nitrogen production deviation time in the time by using the nitrogen production amount and the purity of the nitrogen production; Whether the time period is a nitrogen production deviation time period is determined according to the proportion of the number of nitrogen production deviation moments in the time period.

5. The on-site self-powered electronic special gas preparation and processing method according to claim 4, characterized in that: The nitrogen production deviation moment is the moment when any one of the nitrogen production amount and the nitrogen production purity does not meet the requirements.

6. The on-site self-powered electronic special gas preparation and processing method according to claim 1, characterized in that: The method for determining the power supply processing strategy of the nitrogen production equipment is: Determine the change amount of the load forecast data between different times in the current period based on the fluctuation of the load forecast data in the current period, and determine the charging influence coefficient of the energy storage device in the current period based on the proportion of the time when the change amount is not within the preset change range; Using the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment, determine the proportion of time when the deviation between the load forecast data and the rated load of the gas compression module of the nitrogen production equipment is not within the preset load deviation range, and use it as the matching deviation coefficient of the gas compression module; Based on the ratio of the charging influence coefficient to the matching deviation coefficient, a load matching coefficient of the load forecast data is determined, and the power supply processing strategy of the nitrogen production equipment is determined using the load matching coefficient.

7. The on-site self-powered electronic special gas preparation and processing method according to claim 6, characterized in that: The power supply processing strategy of the nitrogen production equipment is determined by using the load matching coefficient, specifically including: When the load matching coefficient is less than the preset matching coefficient threshold, the energy storage device is used to power the nitrogen production equipment, and the electric energy of the photovoltaic device is used for charging the energy storage device; When the load matching coefficient is not less than a preset matching coefficient threshold, the photovoltaic device is used to power the gas compression module, and the energy storage device is used to power the modules other than the gas compression module.

8. An on-site self-powered electronic special gas production device, using the on-site self-powered electronic special gas production method according to any one of claims 1 to 7, characterized in that: Specifically include: Energy supply module, gas compression module, gas production module; The energy supply module includes an energy storage device and a photovoltaic device, and is used for energy supply processing of the gas compression module and the gas production module; The gas compression module is responsible for compressing the raw gas and transporting it to the gas production module; The gas production module is responsible for separating nitrogen from the compressed raw material gas by using a vacuum pressure swing adsorption process to adsorb and desorb the gas at different pressures.

9. The on-site self-powered electronic special gas production device according to claim 8, characterized in that: The photovoltaic device has a three-dimensional structure, wherein a single-axis or dual-axis tracking system is used on the fixed structure of the photovoltaic panel of the photovoltaic device, so that the photovoltaic panel can rotate as the direction of sunlight changes.

10. The on-site self-powered electronic special gas production device according to claim 8, characterized in that: The gas compression module is constructed using a low-power compressor whose rated power is less than a preset power threshold.

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