A nitrogen generator that accurately controls nitrogen output purity and flow

Abstract

The present invention relates to the technical field of nitrogen production, and specifically discloses a nitrogen production machine for accurately controlling the purity and flow rate of nitrogen output, including: a first calculation module, for obtaining the output promotion degree of each type of adsorption processing parameter at each moment in the preset time period before the current moment based on all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment; an analysis module, for obtaining the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment based on the output promotion degree of each type of adsorption processing parameter; a second calculation module, for obtaining the minimum air intake volume parameter at the current moment based on the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment; an output module, for obtaining the optimal nitrogen production result at the current moment based on the minimum air intake volume parameter at the current moment. The present invention effectively improves the overall efficiency of nitrogen production and minimizes energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of nitrogen production, and in particular to a nitrogen generator capable of accurately controlling the output purity and flow rate of nitrogen. Background Art

[0002] At present, with the development of industry, the demand for nitrogen purity and output is increasing. At the same time, the increase in energy costs and environmental protection awareness also requires that the nitrogen production process must be more efficient and energy-saving. Therefore, it is particularly important to develop a technology that can optimize the parameters of the nitrogen production process in real time and improve the efficiency and purity of nitrogen output.

[0003] However, the existing nitrogen generators that accurately control the output purity and flow of nitrogen only provide a wider range of nitrogen purity values ​​for mixed gases, and the nitrogen purity value of the mixed gas is more accurate, without considering how to effectively improve the overall efficiency of nitrogen output, nor how to minimize energy consumption. For example, the patent with the publication number "CN116520900A" and the patent name "A nitrogen production method and nitrogen generator for accurately controlling nitrogen output" includes the following steps: the user sets the required mixed gas parameter value as required, and the parameter value includes the flow rate of the mixed gas and its nitrogen purity; the PLC control system calculates the required flow rate of nitrogen and air according to the set nitrogen parameter value; the PLC control system quantitatively outputs the required nitrogen and air through the flow control element, and mixes them into a mixed gas; the PLC control system obtains the nitrogen purity of the mixed gas and the purity of nitrogen in real time, and recalculates and adjusts the required flow rate of nitrogen and air in real time, so that the obtained mixed gas meets the nitrogen purity of the mixed gas set by the user. The above patent can provide a mixed gas with a wider range of nitrogen purity values, and the nitrogen purity value of the mixed gas is more accurate. However, the patent only provides a mixed gas with a wider range of nitrogen purity values, and the nitrogen purity value of the mixed gas is more accurate, and does not consider how to effectively improve the overall efficiency of nitrogen production, nor how to minimize energy consumption.

[0004] Therefore, the present invention provides a nitrogen generator capable of accurately controlling the output purity and flow rate of nitrogen. Summary of the invention

[0005] The present invention provides a nitrogen generator capable of accurately controlling the output purity and flow rate of nitrogen, so as to quantify the direct promotion effect of each type of adsorption processing parameter on the nitrogen production process at each moment within a preset time period before the current moment, and then obtain the output promotion degree waveform of each type of adsorption processing parameter, so as to facilitate the acquisition of the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment, and obtain the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment according to the output promotion degree waveform of all types of adsorption processing parameters, and then accurately obtain the minimum air intake volume parameter at the current moment, and finally obtain the optimal nitrogen production result at the current moment according to the minimum air intake volume parameter at the current moment, so as to effectively improve the overall efficiency of nitrogen production and minimize energy consumption.

[0006] The present invention provides a nitrogen generator for accurately controlling the output purity and flow rate of nitrogen, comprising:

[0007] An acquisition module, for obtaining all gas processing parameters and all adsorption processing parameters at each moment in a preset time period before the current moment based on all gas parameters and all adsorption parameters at each moment in a preset time period before the current moment;

[0008] A first calculation module, for obtaining an output promotion degree of each type of adsorption processing parameter at each moment in a preset time period before the current moment based on all types of gas processing parameters and all types of adsorption processing parameters at each moment in a preset time period before the current moment;

[0009] An analysis module, for obtaining an output promotion degree waveform diagram of each type of adsorption processing parameter based on the output promotion degree of each type of adsorption processing parameter at all times within a preset time period before the current time, and obtaining an optimal setting temperature parameter and an optimal setting pressure parameter at the current time based on the output promotion degree waveform diagrams of all types of adsorption processing parameters;

[0010] A second calculation module is used to obtain a minimum air intake volume parameter at the current moment based on the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment;

[0011] The output module is used to obtain the best nitrogen production result at the current moment based on the minimum air intake volume parameter at the current moment.

[0012] Preferably, a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, the acquisition module comprises:

[0013] The first acquisition submodule is used to acquire all gas parameters at each moment in a preset time period before the current moment, wherein all gas parameters include air intake volume parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output volume parameters;

[0014] The second acquisition submodule is used to acquire all the class adsorption parameters at each moment in a preset time period before the current moment, wherein all the class adsorption parameters include adsorption temperature parameters and adsorption pressure parameters;

[0015] The processing submodule is used to process data of all gas-like parameters and all adsorption-like parameters at each moment in a preset time period before the current moment, and obtain all gas-like processing parameters and all adsorption-like processing parameters at each moment in the preset time period before the current moment.

[0016] Preferably, a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, a processing submodule comprises:

[0017] The first processing unit is used to use the air intake volume parameter, the air nitrogen purity parameter, the adsorption temperature parameter and the adsorption pressure parameter as operation parameters to obtain all types of operation parameters, and use the nitrogen output purity parameter and the nitrogen output volume parameter as output parameters to obtain all types of output parameters, and judge whether the difference between each type of output parameter at each moment in a preset time period before the current moment and the corresponding type of output parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding type of output parameter, if so, the corresponding moment is used as the judgment moment of the corresponding type of output parameter, otherwise, the corresponding type of output parameter at the corresponding moment is used as the processing parameter of the corresponding type of output parameter at the corresponding moment;

[0018] The second processing unit is used to determine whether, at each judgment moment of each type of output parameter, there is at least one type of operation parameter whose adjacent difference is greater than the adjacent difference threshold of the corresponding type of operation parameter; if so, the corresponding type of output parameter at the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment; otherwise, the average of the corresponding type of output parameters at all adjacent moments of the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment;

[0019] The third processing unit is used to determine whether the difference between each type of operation parameter at each moment in the preset time period before the current moment and the corresponding type of operation parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding operation parameter. If so, the average of the corresponding type of operation parameters at all adjacent moments of the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Otherwise, the corresponding type of operation parameter at the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Based on the processing parameters of the operation parameters at each moment in the preset time period before the current moment and the processing parameters of the output parameters, all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment are obtained.

[0020] Preferably, the nitrogen generator that accurately controls the purity and flow rate of nitrogen output, the first calculation module comprises:

[0021] A preprocessing submodule, used to use the ambient temperature of the adsorption tower at each moment in a preset time period before the current moment as a reference ambient temperature at the corresponding moment, and to use the ambient pressure of the adsorption tower at each moment in the preset time period before the current moment as a reference ambient pressure at the corresponding moment;

[0022] The first calculation submodule is used to obtain the output promotion degree of the adsorption temperature processing parameter at each moment in the preset time period before the current moment based on all the gas processing parameters, adsorption temperature processing parameters and reference ambient temperature at each moment in the preset time period before the current moment, that is:

[0023]

[0024] in, is the output promotion degree of the adsorption temperature processing parameter at the current calculation moment within the preset time period before the current moment, is the value of the adsorption temperature processing parameter at the current calculation time within the preset time period before the current time. is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time. is the value of the air intake volume processing parameter at the current calculation moment within the preset time period before the current moment, It is the air nitrogen purity processing parameter at the current calculation time within the preset time period before the current time. is the value of the nitrogen output processing parameter at the current calculation time within the preset time period before the current time, It is the nitrogen output purity processing parameter at the current calculation time within the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718;

[0025] The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameters at each moment in the preset time period before the current moment based on all gas processing parameters, adsorption pressure processing parameters and reference ambient pressure at each moment in the preset time period before the current moment.

[0026] Preferably, for a nitrogen generator that accurately controls the purity and flow rate of nitrogen output, the second calculation submodule obtains the method for the output promotion degree of the adsorption pressure processing parameter at each moment in the preset time period before the current moment based on all gas processing parameters, adsorption pressure processing parameters and reference ambient pressure at each moment in the preset time period before the current moment, including:

[0027]

[0028] in, is the output promotion degree of the adsorption pressure processing parameters at the current calculation moment within the preset time period before the current moment, is the value of the adsorption pressure processing parameter at the current calculation time within the preset time period before the current time. is the value of the reference ambient pressure at the current calculation time within the preset time period before the current time. is the value of the air intake volume processing parameter at the current calculation moment within the preset time period before the current moment, It is the air nitrogen purity processing parameter at the current calculation time within the preset time period before the current time. is the value of the nitrogen output processing parameter at the current calculation time within the preset time period before the current time, It is the nitrogen output purity processing parameter at the current calculation time within the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718.

[0029] Preferably, a nitrogen generator that accurately controls the purity and flow of nitrogen output, an analysis module, comprises:

[0030] The waveform drawing submodule is used to use all moments in a preset time period before the current moment as the horizontal axis value and the output promotion degree of each type of adsorption processing parameter at the corresponding moment as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption processing parameter, and to connect all the output promotion degree points of each type of adsorption processing parameter in sequence to obtain the output promotion degree waveform diagram of each type of adsorption processing parameter;

[0031] The analysis submodule is used to obtain the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment based on the output promotion waveform diagram of all types of adsorption processing parameters.

[0032] Preferably, the nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, the analysis submodule comprises:

[0033] A first analysis unit is used to use the intersection of the output promotion degree waveform diagram of the adsorption temperature processing parameter and the output promotion degree waveform diagram of the adsorption pressure processing parameter as the convergence point at the current moment;

[0034] The second analysis unit is used to regard the convergence point with the largest vertical coordinate value among all the convergence points at the current moment as the set convergence point at the current moment, and to regard the adsorption temperature processing parameter corresponding to the horizontal coordinate of the set convergence point at the current moment as the optimal setting temperature parameter at the current moment, and to regard the adsorption pressure processing parameter corresponding to the horizontal coordinate of the set convergence point at the current moment as the optimal setting pressure parameter at the current moment.

[0035] Preferably, the nitrogen generator that accurately controls the purity and flow rate of nitrogen output, the second calculation module comprises:

[0036] The third acquisition submodule is used to obtain the control nitrogen output purity parameter at the current moment, and use all moments in the preset time period before the current moment when the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference time for setting the temperature, and use all moments in the preset time period before the current moment when the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference time for setting the pressure;

[0037] The third calculation submodule is used to obtain the minimum air intake volume parameter at the current moment based on the nitrogen output purity control parameter at the current moment, the optimal setting temperature parameter at the current moment, the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature, and all reference moments for setting the pressure.

[0038] Preferably, for a nitrogen generator that accurately controls the output purity and flow rate of nitrogen, the third calculation submodule obtains a method for obtaining the minimum air intake volume parameter at the current moment based on the control nitrogen output purity parameter at the current moment, the optimal setting temperature parameter at the current moment, the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature, and all reference moments for setting the pressure, including:

[0039]

[0040] in, is the value of the minimum air intake parameter at the current moment, The minimum value of the air intake volume processing parameters at all reference times for setting the temperature. is the maximum value of the air intake volume processing parameters at all reference times for setting the temperature. The minimum value of the air intake volume processing parameters at all reference times for setting the pressure. The maximum value of the air intake volume processing parameters at all reference times for setting the pressure. is the nitrogen output purity parameter controlled at the current moment, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set temperature, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set pressure, is the minimum value of the adsorption temperature processing parameters of all reference moments for setting the temperature. is the minimum value of the adsorption pressure processing parameters at all reference moments of the pressure setting. The value of the optimal temperature parameter setting at the current moment, The value of the optimal pressure parameter setting at the current moment;

[0041] Based on the value of the minimum air intake amount parameter at the current moment, the minimum air intake amount parameter at the current moment is obtained.

[0042] Preferably, the nitrogen generator with precise control of nitrogen output purity and flow rate, the output module comprises:

[0043] The fourth acquisition submodule is used to obtain the nitrogen output control parameter at the current moment;

[0044] The access number analysis submodule is used to take the quotient between the value of the control nitrogen output parameter at the current moment and the value of the minimum air intake parameter at the current moment as a reference quotient value, take the mean of the minimum value of the air nitrogen purity processing parameters at all reference moments of the set temperature and the minimum value of the air nitrogen purity processing parameters at all reference moments of the set pressure as a reference mean, and round up the sum of the reference quotient and the reference mean as the access number of the adsorption tower at the current moment;

[0045] The output submodule is used to obtain the best nitrogen production result at the current moment based on the best setting temperature parameters, the best setting pressure parameters, the minimum air intake parameters and the number of adsorption tower connections at the current moment.

[0046] The beneficial effects of the present invention compared to the prior art are as follows: the present invention realizes quantification of the direct promotion effect of each type of adsorption treatment parameter at each moment in a preset time period before the current moment on the nitrogen production process, and then obtains the output promotion degree waveform of each type of adsorption treatment parameter, which is convenient for obtaining the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment, and obtains the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment according to the output promotion degree waveform of all types of adsorption treatment parameters, and then accurately obtains the minimum air intake volume parameters at the current moment, and finally obtains the optimal nitrogen production result at the current moment according to the minimum air intake volume parameters at the current moment, which effectively improves the overall efficiency of nitrogen production and minimizes energy consumption.

[0047] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structure specifically pointed out in the written application document.

[0048] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0050] Figure 1 Schematic diagram of a nitrogen generator for accurately controlling the output purity and flow rate of nitrogen in an embodiment of the present invention;

[0051] Figure 2 It is a specific schematic diagram of the acquisition module in the embodiment of the present invention. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0053] Embodiment 1:

[0054] The present invention provides a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, referring to Figure 1 ,include:

[0055] An acquisition module, for obtaining all gas processing parameters and all adsorption processing parameters at each moment in a preset time period before the current moment based on all gas parameters and all adsorption parameters at each moment in a preset time period before the current moment;

[0056] A first calculation module, for obtaining an output promotion degree of each type of adsorption processing parameter at each moment in a preset time period before the current moment based on all types of gas processing parameters and all types of adsorption processing parameters at each moment in a preset time period before the current moment;

[0057] An analysis module, for obtaining an output promotion degree waveform diagram of each type of adsorption processing parameter based on the output promotion degree of each type of adsorption processing parameter at all times within a preset time period before the current time, and obtaining an optimal setting temperature parameter and an optimal setting pressure parameter at the current time based on the output promotion degree waveform diagrams of all types of adsorption processing parameters;

[0058] A second calculation module is used to obtain a minimum air intake volume parameter at the current moment based on the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment;

[0059] The output module is used to obtain the best nitrogen production result at the current moment based on the minimum air intake volume parameter at the current moment.

[0060] In this embodiment, the preset time period is a time period preset to obtain all types of gas processing parameters and all types of adsorption processing parameters.

[0061] In this embodiment, each moment is a moment selected from a preset time period before the current moment, wherein the time length between each adjacent moment is the same, and the selected moments do not include the current moment, and the time length between the current moment and the last (selected) moment is the same as the time length between each adjacent moment (selected moment).

[0062] In this embodiment, the all-gas processing parameters are obtained by processing all-gas parameters at each moment in a preset time period before the current moment, and can truly reflect the specific conditions of all-gas parameters at each moment in the preset time period before the current moment.

[0063] In this embodiment, all adsorption processing parameters are obtained by processing all adsorption parameters at each moment in a preset time period before the current moment, and can truly reflect the specific conditions of all adsorption parameters at each moment in the preset time period before the current moment.

[0064] In this embodiment, the output promotion degree of all types of adsorption processing parameters is a numerical value obtained based on all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment, which can characterize the direct promotion effect of all types of adsorption processing parameters at each moment in the preset time period before the current moment on the nitrogen production process, wherein the output promotion degree of all types of adsorption processing parameters includes the output promotion degree of adsorption temperature processing parameters and the output promotion degree of adsorption pressure processing parameters.

[0065] In this embodiment, the output promotion waveform of each type of adsorption treatment parameter is obtained based on the output promotion degree of each type of adsorption treatment parameter at all moments in a preset time period before the current moment, and can reflect the fluctuation of the direct promotion effect of each type of adsorption treatment parameter on the nitrogen production process in the preset time period before the current moment.

[0066] In this embodiment, the optimal setting temperature parameter at the current moment is an output promotion waveform based on all types of adsorption processing parameters, and the temperature to which the adsorption temperature parameter at the current moment needs to be adjusted in order to optimize the direct promotion effect of the nitrogen production process at the current moment is obtained.

[0067] In this embodiment, the optimal set pressure parameter at the current moment is an output promotion waveform based on all types of adsorption processing parameters, and the pressure to which the adsorption pressure parameter at the current moment needs to be adjusted in order to optimize the direct promotion effect of the nitrogen production process at the current moment is obtained.

[0068] In this embodiment, the minimum air intake volume parameter at the current moment is obtained based on the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment, and is the minimum value (m³) to which the air intake volume parameter at the current moment needs to be adjusted in order to make the nitrogen output purity parameter at the current moment the same as the controlled nitrogen output purity parameter at the current moment.

[0069] In this embodiment, the best nitrogen production result at the current moment is to adjust the adsorption temperature parameter at the current moment to be the same as the best setting temperature parameter at the current moment, adjust the adsorption pressure parameter at the current moment to be the same as the best setting pressure parameter, adjust the air intake volume parameter at the current moment to be the same as the minimum air intake volume parameter, and adjust the number of adsorption tower connections at the current moment to be the same as the number of adsorption tower connections at the current moment, so as to obtain the best nitrogen production result of the nitrogen generator at the current moment.

[0070] The beneficial effects of the above technology are as follows: the present invention realizes quantification of the direct promotion effect of each type of adsorption treatment parameter on the nitrogen production process at each moment within a preset time period before the current moment, and then obtains the output promotion degree waveform of each type of adsorption treatment parameter, which is convenient for obtaining the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment. According to the output promotion degree waveform of all types of adsorption treatment parameters, the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment are obtained, and then the minimum air intake volume parameters at the current moment are accurately obtained. Finally, according to the minimum air intake volume parameters at the current moment, the best nitrogen production result at the current moment is obtained, which effectively improves the overall efficiency of nitrogen production and minimizes energy consumption.

[0071] Embodiment 2:

[0072] Based on Example 1, a nitrogen generator that accurately controls the purity and flow of nitrogen output is obtained by referring to the module. Figure 2 ,include:

[0073] The first acquisition submodule is used to acquire all gas parameters at each moment in a preset time period before the current moment, wherein all gas parameters include air intake volume parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output volume parameters;

[0074] The second acquisition submodule is used to acquire all the class adsorption parameters at each moment in a preset time period before the current moment, wherein all the class adsorption parameters include adsorption temperature parameters and adsorption pressure parameters;

[0075] The processing submodule is used to process data of all gas-like parameters and all adsorption-like parameters at each moment in a preset time period before the current moment, and obtain all gas-like processing parameters and all adsorption-like processing parameters at each moment in the preset time period before the current moment.

[0076] In this embodiment, the air intake volume parameter is the amount of air (m³) sucked from the nitrogen generator environment and input into a single access adsorption tower at each moment in a preset time period before the current moment.

[0077] In this embodiment, the nitrogen purity parameter of the air is the proportion of nitrogen in the air input to the adsorption tower at each moment in a preset time period before the current moment.

[0078] In this embodiment, the nitrogen output purity parameter is the value of the purity of the nitrogen output by the nitrogen generator at each moment in a preset time period before the current moment, for example, 0.991.

[0079] In this embodiment, the nitrogen output parameter is the amount of nitrogen (m³) output from the nitrogen generator at each moment in a preset time period before the current moment.

[0080] In this embodiment, the adsorption temperature parameter is the temperature (degrees Celsius) in the adsorption tower at each moment in a preset time period before the current moment.

[0081] In this embodiment, the adsorption pressure parameter is the pressure (Pa) in the adsorption tower at each moment in a preset time period before the current moment.

[0082] In this embodiment, data processing is a process of obtaining all types of gas processing parameters and all types of adsorption processing parameters at each moment in a preset time period before the current moment based on all types of gas parameters and all types of adsorption parameters at each moment in a preset time period before the current moment.

[0083] In this embodiment, all gas processing parameters include air intake volume processing parameters, air nitrogen purity processing parameters, nitrogen output purity processing parameters, and nitrogen output volume processing parameters.

[0084] In this embodiment, all types of adsorption processing parameters include adsorption temperature processing parameters and adsorption pressure processing parameters.

[0085] The beneficial effects of the above technology are: clarifying the specific parameter items of all types of gas parameters and all types of adsorption parameters at each moment in the preset time period before the current moment, and then obtaining all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment based on all types of gas parameters and all types of adsorption parameters at each moment in the preset time period before the current moment.

[0086] Embodiment 3:

[0087] Based on Example 2, a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, a processing submodule, includes:

[0088] The first processing unit is used to use the air intake volume parameter, the air nitrogen purity parameter, the adsorption temperature parameter and the adsorption pressure parameter as operation parameters to obtain all types of operation parameters, and use the nitrogen output purity parameter and the nitrogen output volume parameter as output parameters to obtain all types of output parameters, and judge whether the difference between each type of output parameter at each moment in a preset time period before the current moment and the corresponding type of output parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding type of output parameter, if so, the corresponding moment is used as the judgment moment of the corresponding type of output parameter, otherwise, the corresponding type of output parameter at the corresponding moment is used as the processing parameter of the corresponding type of output parameter at the corresponding moment;

[0089] The second processing unit is used to determine whether, at each judgment moment of each type of output parameter, there is at least one type of operation parameter whose adjacent difference is greater than the adjacent difference threshold of the corresponding type of operation parameter; if so, the corresponding type of output parameter at the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment; otherwise, the average of the corresponding type of output parameters at all adjacent moments of the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment;

[0090] The third processing unit is used to determine whether the difference between each type of operation parameter at each moment in the preset time period before the current moment and the corresponding type of operation parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding operation parameter. If so, the average of the corresponding type of operation parameters at all adjacent moments of the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Otherwise, the corresponding type of operation parameter at the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Based on the processing parameters of the operation parameters at each moment in the preset time period before the current moment and the processing parameters of the output parameters, all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment are obtained.

[0091] In this embodiment, the adjacent moments of each moment are the remaining moments that are adjacent to each moment in the time domain within a preset time period before the current moment.

[0092] In this embodiment, the difference thresholds of the output parameters are preset to obtain the difference thresholds of all judgment moments of each type of output parameter, and each type of output parameter corresponds to a difference threshold separately.

[0093] In this embodiment, the adjacent differences of the operating parameters at each moment are the average of the differences between each type of operating parameters at each moment and the corresponding type of operating parameters at all adjacent moments of the corresponding moment.

[0094] In this embodiment, the adjacent difference thresholds of the operating parameters are preset thresholds for obtaining processing parameters of each type of output parameter at each determination moment, and each type of operating parameter corresponds to a separate adjacent difference threshold.

[0095] In this embodiment, the difference threshold of the operating parameters is a preset difference threshold of the processing parameters used to obtain each type of operating parameters at each moment, and each type of operating parameter corresponds to a difference threshold separately.

[0096] In this embodiment, based on the processing parameters of the operating parameters and the processing parameters of the output parameters at each moment in the preset time period before the current moment, all gas processing parameters and all adsorption processing parameters at each moment in the preset time period before the current moment are obtained, namely:

[0097] The processing parameters of the air intake volume parameter / air nitrogen purity parameter / nitrogen output purity parameter / nitrogen output volume parameter / adsorption temperature parameter / adsorption pressure parameter at each moment in the preset time period before the current moment are used as the air intake volume processing parameters at each moment in the preset time period before the current moment.

[0098] The beneficial effect of the above technology is: this embodiment provides in detail a specific method for accurately obtaining processing parameters that can truly reflect the specific conditions of all types of gas parameters and all types of adsorption parameters at each moment in a preset time period before the current moment, which facilitates the subsequent calculation of output promotion degree.

[0099] Embodiment 4:

[0100] On the basis of Example 1, a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, the first calculation module includes:

[0101] A preprocessing submodule, used to use the ambient temperature of the adsorption tower at each moment in a preset time period before the current moment as a reference ambient temperature at the corresponding moment, and to use the ambient pressure of the adsorption tower at each moment in the preset time period before the current moment as a reference ambient pressure at the corresponding moment;

[0102] The first calculation submodule is used to obtain the output promotion degree of the adsorption temperature processing parameter at each moment in the preset time period before the current moment based on all the gas processing parameters, adsorption temperature processing parameters and reference ambient temperature at each moment in the preset time period before the current moment, that is:

[0103]

[0104] in, is the output promotion degree of the adsorption temperature processing parameter at the current calculation moment within the preset time period before the current moment, is the value of the adsorption temperature processing parameter at the current calculation time within the preset time period before the current time. is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time. is the value of the air intake volume processing parameter at the current calculation moment within the preset time period before the current moment, It is the air nitrogen purity processing parameter at the current calculation time within the preset time period before the current time. is the value of the nitrogen output processing parameter at the current calculation time within the preset time period before the current time, It is the nitrogen output purity processing parameter at the current calculation time within the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718;

[0105] The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameters at each moment in the preset time period before the current moment based on all gas processing parameters, adsorption pressure processing parameters and reference ambient pressure at each moment in the preset time period before the current moment.

[0106] In this embodiment, the ambient temperature of the adsorption tower is the atmospheric temperature (degrees Celsius) of the environment in which the nitrogen generator is located.

[0107] In this embodiment, the ambient pressure of the adsorption tower is the atmospheric pressure (Pa) of the environment in which the nitrogen generator is located.

[0108] The beneficial effects of the above technology are: based on all gas processing parameters, adsorption temperature processing parameters and reference ambient temperature at each moment in the preset time period before the current moment, the output promotion degree of the adsorption temperature processing parameters at each moment in the preset time period before the current moment is obtained, and the direct promotion effect of the adsorption temperature processing parameters at each moment in the preset time period before the current moment on the nitrogen production process is quantified.

[0109] Embodiment 5:

[0110] On the basis of Example 4, a nitrogen generator that accurately controls the purity and flow rate of nitrogen output, a method for obtaining the output promotion degree of the adsorption pressure processing parameter at each moment in the preset time period before the current moment based on all gas processing parameters, adsorption pressure processing parameters and reference ambient pressure at each moment in the preset time period before the current moment by the second calculation submodule, comprises:

[0111]

[0112] in, is the output promotion degree of the adsorption pressure processing parameters at the current calculation moment within the preset time period before the current moment, is the value of the adsorption pressure processing parameter at the current calculation time within the preset time period before the current time. is the value of the reference ambient pressure at the current calculation time within the preset time period before the current time. is the value of the air intake volume processing parameter at the current calculation moment within the preset time period before the current moment, It is the air nitrogen purity processing parameter at the current calculation time within the preset time period before the current time. is the value of the nitrogen output processing parameter at the current calculation time within the preset time period before the current time, It is the nitrogen output purity processing parameter at the current calculation time within the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718.

[0113] The beneficial effects of the above technology are as follows: This embodiment provides in detail a specific method for quantifying the direct promoting effect of the adsorption pressure treatment parameters at each moment in a preset time period before the current moment on the nitrogen production process.

[0114] Embodiment 6:

[0115] Based on Example 1, a nitrogen generator and an analysis module for accurately controlling the purity and flow rate of nitrogen output include:

[0116] The waveform drawing submodule is used to use all moments in a preset time period before the current moment as the horizontal axis value and the output promotion degree of each type of adsorption processing parameter at the corresponding moment as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption processing parameter, and to connect all the output promotion degree points of each type of adsorption processing parameter in sequence to obtain the output promotion degree waveform diagram of each type of adsorption processing parameter;

[0117] The analysis submodule is used to obtain the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment based on the output promotion waveform diagram of all types of adsorption processing parameters.

[0118] In this embodiment, sequentially connected means sequentially connecting all the output promotion degree points of each type of adsorption processing parameter from small to large according to the horizontal coordinates.

[0119] The beneficial effects of the above technology are: based on the output promotion degree of each type of adsorption treatment parameter at all moments in the preset time period before the current moment, the output promotion degree waveform of each type of adsorption treatment parameter is accurately obtained, which is convenient for obtaining the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment, and based on the output promotion degree waveform of all types of adsorption treatment parameters, the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment are obtained, which is convenient for the subsequent calculation of the minimum air intake parameters at the current moment.

[0120] Embodiment 7:

[0121] Based on Example 6, a nitrogen generator that accurately controls the purity and flow rate of nitrogen output, an analysis submodule, includes:

[0122] A first analysis unit is used to use the intersection of the output promotion degree waveform diagram of the adsorption temperature processing parameter and the output promotion degree waveform diagram of the adsorption pressure processing parameter as the convergence point at the current moment;

[0123] The second analysis unit is used to regard the convergence point with the largest vertical coordinate value among all the convergence points at the current moment as the set convergence point at the current moment, and to regard the adsorption temperature processing parameter corresponding to the horizontal coordinate of the set convergence point at the current moment as the optimal setting temperature parameter at the current moment, and to regard the adsorption pressure processing parameter corresponding to the horizontal coordinate of the set convergence point at the current moment as the optimal setting pressure parameter at the current moment.

[0124] The beneficial effects of the above technology are: according to the output promotion degree waveform of all types of adsorption processing parameters, all convergence points at the current moment are obtained, and then according to all the convergence points at the current moment, the optimal setting temperature parameters and the optimal setting pressure parameters at the current moment are obtained, and the temperature and pressure values ​​to which the adsorption temperature parameters and adsorption pressure parameters at the current moment need to be adjusted in order to optimize the direct promotion effect of the nitrogen production process at the current moment are accurately obtained.

[0125] Embodiment 8:

[0126] On the basis of Example 1, a nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, a second calculation module includes:

[0127] The third acquisition submodule is used to obtain the control nitrogen output purity parameter at the current moment, and use all moments in the preset time period before the current moment when the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference time for setting the temperature, and use all moments in the preset time period before the current moment when the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference time for setting the pressure;

[0128] The third calculation submodule is used to obtain the minimum air intake volume parameter at the current moment based on the nitrogen output purity control parameter at the current moment, the optimal setting temperature parameter at the current moment, the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature, and all reference moments for setting the pressure.

[0129] In this embodiment, the nitrogen output purity parameter controlled at the current moment is the purity that the controller wants the nitrogen output from the nitrogen generator to achieve by inputting the nitrogen into the nitrogen generator at the current moment.

[0130] The beneficial effects of the above technology are: according to the optimal setting temperature parameter at the current moment and the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature and all reference moments for setting the pressure are obtained, and then according to all reference moments for setting the temperature and all reference moments for setting the pressure, the minimum air intake parameter at the current moment is obtained, and the minimum value to which the air intake parameter at the current moment needs to be adjusted in order to make the nitrogen output purity parameter at the current moment the same as the controlled nitrogen output purity parameter at the current moment is accurately obtained.

[0131] Embodiment 9:

[0132] On the basis of Example 8, a nitrogen generator that accurately controls the nitrogen output purity and flow rate, a method for obtaining the minimum air intake volume parameter at the current moment based on the third calculation submodule controlling the nitrogen output purity parameter at the current moment, the optimal setting temperature parameter at the current moment, the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature, and all reference moments for setting the pressure, includes:

[0133]

[0134] in, is the value of the minimum air intake parameter at the current moment, The minimum value of the air intake volume processing parameters at all reference times for setting the temperature. is the maximum value of the air intake volume processing parameters at all reference times for setting the temperature. The minimum value of the air intake volume processing parameters at all reference times for setting the pressure. The maximum value of the air intake volume processing parameters at all reference times for setting the pressure. is the nitrogen output purity parameter controlled at the current moment, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set temperature, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set pressure, is the minimum value of the adsorption temperature processing parameters of all reference moments for setting the temperature. is the minimum value of the adsorption pressure processing parameters at all reference moments of the pressure setting. The value of the optimal temperature parameter setting at the current moment, The value of the optimal pressure parameter setting at the current moment;

[0135] Based on the value of the minimum air intake amount parameter at the current moment, the minimum air intake amount parameter at the current moment is obtained.

[0136] The beneficial effect of the above technology is: according to all reference moments of setting temperature and all reference moments of setting pressure, the minimum air intake parameter at the current moment is obtained, and the minimum value to which the air intake parameter at the current moment needs to be adjusted in order to make the nitrogen output purity parameter at the current moment the same as the controlled nitrogen output purity parameter at the current moment is accurately obtained.

[0137] Embodiment 10:

[0138] Based on Example 9, a nitrogen generator that accurately controls the purity and flow rate of nitrogen output, the output module includes:

[0139] The fourth acquisition submodule is used to obtain the nitrogen output control parameter at the current moment;

[0140] The access number analysis submodule is used to take the quotient between the value of the control nitrogen output parameter at the current moment and the value of the minimum air intake parameter at the current moment as a reference quotient value, take the mean of the minimum value of the air nitrogen purity processing parameters at all reference moments of the set temperature and the minimum value of the air nitrogen purity processing parameters at all reference moments of the set pressure as a reference mean, and round up the sum of the reference quotient and the reference mean as the access number of the adsorption tower at the current moment;

[0141] The output submodule is used to obtain the best nitrogen production result at the current moment based on the best setting temperature parameters, the best setting pressure parameters, the minimum air intake parameters and the number of adsorption tower connections at the current moment.

[0142] In this embodiment, the parameter for controlling the nitrogen output at the current moment is the amount of nitrogen (m³) that the controller inputs to the nitrogen generator at the current moment and wants the nitrogen generator to output.

[0143] In this embodiment, the number of adsorption towers connected at the current moment is the number of adsorption towers that need to be connected (turned on) in the nitrogen generator at the current moment.

[0144] The beneficial effects of the above technology are: according to the minimum air intake volume parameter at the current moment, the number of adsorption tower connections at the current moment is accurately obtained, and then according to the number of adsorption tower connections at the current moment, the best nitrogen production result at the current moment is obtained, which effectively improves the overall efficiency of nitrogen production and minimizes energy consumption.

[0145] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, and the present invention is also intended to include these changes and modifications.

Claims

1. A nitrogen generator for accurately controlling the purity and flow rate of nitrogen output, characterized in that: include: An acquisition module, for obtaining all gas processing parameters and all adsorption processing parameters at each moment in a preset time period before the current moment based on all gas parameters and all adsorption parameters at each moment in a preset time period before the current moment; A first calculation module, for obtaining an output promotion degree of each type of adsorption processing parameter at each moment in a preset time period before the current moment based on all types of gas processing parameters and all types of adsorption processing parameters at each moment in a preset time period before the current moment; An analysis module, for obtaining an output promotion degree waveform diagram of each type of adsorption processing parameter based on the output promotion degree of each type of adsorption processing parameter at all times within a preset time period before the current time, and obtaining an optimal setting temperature parameter and an optimal setting pressure parameter at the current time based on the output promotion degree waveform diagrams of all types of adsorption processing parameters; A second calculation module is used to obtain a minimum air intake volume parameter at the current moment based on the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment; An output module is used to obtain the best nitrogen production result at the current moment based on the minimum air intake volume parameter at the current moment; Wherein, the first computing module includes: A preprocessing submodule, used to use the ambient temperature of the adsorption tower at each moment in a preset time period before the current moment as a reference ambient temperature at the corresponding moment, and to use the ambient pressure of the adsorption tower at each moment in the preset time period before the current moment as a reference ambient pressure at the corresponding moment; The first calculation submodule is used to obtain the output promotion degree of the adsorption temperature processing parameter at each moment in the preset time period before the current moment based on all the gas processing parameters, adsorption temperature processing parameters and reference ambient temperature at each moment in the preset time period before the current moment, that is: in, is the output promotion degree of the adsorption temperature processing parameter at the current calculation moment within the preset time period before the current moment, is the value of the adsorption temperature processing parameter at the current calculation time within the preset time period before the current time. is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time. is the value of the air intake volume processing parameter at the current calculation moment within the preset time period before the current moment, It is the air nitrogen purity processing parameter at the current calculation time within the preset time period before the current time. is the value of the nitrogen output processing parameter at the current calculation time within the preset time period before the current time, It is the nitrogen output purity processing parameter at the current calculation time within the preset time period before the current time. is the natural logarithm, and the value of the natural constant e is 2.718; The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameter at each moment in the preset time period before the current moment based on all the gas processing parameters, adsorption pressure processing parameters and reference environmental pressure at each moment in the preset time period before the current moment; The second calculation submodule obtains the output promotion degree of the adsorption pressure processing parameter at each moment in the preset time period before the current moment based on all the gas processing parameters, adsorption pressure processing parameters and reference environmental pressure at each moment in the preset time period before the current moment, including: in, is the output promotion degree of the adsorption pressure processing parameters at the current calculation moment within the preset time period before the current moment, is the value of the adsorption pressure processing parameter at the current calculation time within the preset time period before the current time. The value of the reference ambient pressure at the current calculation moment within the preset time period before the current moment; The analysis module includes: The waveform drawing submodule is used to use all moments in a preset time period before the current moment as the horizontal axis value and the output promotion degree of each type of adsorption processing parameter at the corresponding moment as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption processing parameter, and to connect all the output promotion degree points of each type of adsorption processing parameter in sequence to obtain the output promotion degree waveform diagram of each type of adsorption processing parameter; An analysis submodule, for obtaining the optimal setting temperature parameter and the optimal setting pressure parameter at the current moment based on the output promotion waveform diagram of all types of adsorption processing parameters; The analysis submodule includes: A first analysis unit is used to use the intersection of the output promotion degree waveform diagram of the adsorption temperature processing parameter and the output promotion degree waveform diagram of the adsorption pressure processing parameter as the convergence point at the current moment; The second analysis unit is used to regard the convergence point with the largest ordinate value among all the convergence points at the current moment as the set convergence point at the current moment, and regard the adsorption temperature processing parameter corresponding to the abscissa of the set convergence point at the current moment as the optimal set temperature parameter at the current moment, and regard the adsorption pressure processing parameter corresponding to the abscissa of the set convergence point at the current moment as the optimal set pressure parameter at the current moment; Wherein, the second computing module includes: The third acquisition submodule is used to obtain the control nitrogen output purity parameter at the current moment, and use all moments in the preset time period before the current moment when the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference time for setting the temperature, and use all moments in the preset time period before the current moment when the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference time for setting the pressure; A third calculation submodule is used to obtain a minimum air intake volume parameter at the current moment based on the nitrogen output purity control parameter at the current moment, the optimal setting temperature parameter at the current moment, the optimal setting pressure parameter at the current moment, all reference moments for setting the temperature, and all reference moments for setting the pressure; The method for obtaining the minimum air intake volume parameter at the current moment by the third calculation submodule based on the current moment controlled nitrogen output purity parameter, the current moment optimal setting temperature parameter, the current moment optimal setting pressure parameter, all reference moments of setting temperature, and all reference moments of setting pressure includes: in, is the value of the minimum air intake parameter at the current moment, The minimum value of the air intake volume processing parameters at all reference times for setting the temperature. is the maximum value of the air intake volume processing parameters at all reference times for setting the temperature. The minimum value of the air intake volume processing parameters at all reference times for setting the pressure. The maximum value of the air intake volume processing parameters at all reference times for setting the pressure. is the nitrogen output purity parameter controlled at the current moment, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set temperature, is the maximum value of the air nitrogen purity processing parameters at all reference moments of the set pressure, is the minimum value of the adsorption temperature processing parameters of all reference moments for setting the temperature. is the minimum value of the adsorption pressure processing parameters at all reference moments of the pressure setting. The value of the optimal temperature parameter setting at the current moment, The value of the optimal pressure parameter setting at the current moment; Based on the value of the minimum air intake amount parameter at the current moment, the minimum air intake amount parameter at the current moment is obtained.

2. The nitrogen generator for accurately controlling nitrogen output purity and flow rate according to claim 1, characterized in that: Get modules, including: The first acquisition submodule is used to acquire all gas parameters at each moment in a preset time period before the current moment, wherein all gas parameters include air intake volume parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output volume parameters; The second acquisition submodule is used to acquire all the class adsorption parameters at each moment in a preset time period before the current moment, wherein all the class adsorption parameters include adsorption temperature parameters and adsorption pressure parameters; The processing submodule is used to process data of all gas-like parameters and all adsorption-like parameters at each moment in a preset time period before the current moment, and obtain all gas-like processing parameters and all adsorption-like processing parameters at each moment in the preset time period before the current moment.

3. The nitrogen generator for accurately controlling nitrogen output purity and flow rate according to claim 2, characterized in that: Processing submodules, including: The first processing unit is used to use the air intake volume parameter, the air nitrogen purity parameter, the adsorption temperature parameter and the adsorption pressure parameter as operation parameters to obtain all types of operation parameters, and use the nitrogen output purity parameter and the nitrogen output volume parameter as output parameters to obtain all types of output parameters, and judge whether the difference between each type of output parameter at each moment in a preset time period before the current moment and the corresponding type of output parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding type of output parameter, if so, the corresponding moment is used as the judgment moment of the corresponding type of output parameter, otherwise, the corresponding type of output parameter at the corresponding moment is used as the processing parameter of the corresponding type of output parameter at the corresponding moment; The second processing unit is used to determine whether, at each judgment moment of each type of output parameter, there is at least one type of operation parameter whose adjacent difference is greater than the adjacent difference threshold of the corresponding type of operation parameter; if so, the corresponding type of output parameter at the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment; otherwise, the average of the corresponding type of output parameters at all adjacent moments of the corresponding judgment moment is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment moment; The third processing unit is used to determine whether the difference between each type of operation parameter at each moment in the preset time period before the current moment and the corresponding type of operation parameters at all adjacent moments of the corresponding moment is greater than the difference threshold of the corresponding operation parameter. If so, the average of the corresponding type of operation parameters at all adjacent moments of the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Otherwise, the corresponding type of operation parameter at the corresponding moment is used as the processing parameter of the corresponding type of operation parameter at the corresponding moment. Based on the processing parameters of the operation parameters at each moment in the preset time period before the current moment and the processing parameters of the output parameters, all types of gas processing parameters and all types of adsorption processing parameters at each moment in the preset time period before the current moment are obtained.

4. The nitrogen generator for accurately controlling nitrogen output purity and flow rate according to claim 1, characterized in that: Output modules, including: The fourth acquisition submodule is used to obtain the nitrogen output control parameter at the current moment; The access number analysis submodule is used to take the quotient between the value of the control nitrogen output parameter at the current moment and the value of the minimum air intake parameter at the current moment as a reference quotient value, take the mean of the minimum value of the air nitrogen purity processing parameters at all reference moments of the set temperature and the minimum value of the air nitrogen purity processing parameters at all reference moments of the set pressure as a reference mean, and round up the sum of the reference quotient and the reference mean as the access number of the adsorption tower at the current moment; The output submodule is used to obtain the best nitrogen production result at the current moment based on the best setting temperature parameters, the best setting pressure parameters, the minimum air intake parameters and the number of adsorption tower connections at the current moment.

Images