Nitrogen generator for accurately controlling output purity and flow rate of nitrogen

Abstract

The present invention relates to the technical field of nitrogen generation, and specifically discloses a nitrogen generator for accurately controlling the output purity and the flow rate of nitrogen, the nitrogen generator comprising: a first computing module, which is configured to obtain, on the basis of all types of gas treatment parameters and all types of adsorption treatment parameters at each moment within a preset time period before a current moment, an output promotion degree of each type of adsorption treatment parameter at each moment within the preset time period before the current moment; an analysis module, which is configured to obtain, on the basis of the output promotion degree of each type of adsorption treatment parameter, an optimal set temperature parameter and an optimal set pressure parameter at the current moment; a second computing module, which is configured to obtain, on the basis of the optimal set temperature parameter and the optimal set pressure parameter at the current moment, a minimum air intake parameter at the current moment; and an output module, which is configured to obtain, on the basis of the minimum air intake parameter at the current moment, an optimal nitrogen generation result at the current moment. The present invention effectively improves the overall efficiency of nitrogen generation and reduces energy consumption to the greatest extent possible.

Description

A nitrogen generator that precisely controls the purity and flow rate of nitrogen output. Technical Field

[0001] This invention relates to the field of nitrogen production technology, and in particular to a nitrogen generator that precisely controls the purity and flow rate of nitrogen output. Background Technology

[0002] Currently, with industrial development, the demand for nitrogen purity and output is constantly increasing. At the same time, rising energy costs and environmental awareness necessitate more efficient and energy-saving nitrogen production processes. Therefore, developing a technology capable of optimizing nitrogen production process parameters in real time to improve nitrogen output efficiency and purity is particularly important.

[0003] However, existing nitrogen generators that precisely control the purity and flow rate of nitrogen output only provide mixed gases with a wider range of nitrogen purity values, and the nitrogen purity value of the mixed gas is more precise. They do not consider how to effectively improve the overall efficiency of nitrogen production, nor how to minimize energy consumption. For example, patent publication number "CN116520900A" entitled "A Nitrogen Generation Method and Nitrogen Generator with Precise Control of Nitrogen Output" describes a method that includes the following steps: the user sets the required parameters for the mixed gas, including the flow rate and nitrogen purity of the mixed gas; the PLC control system calculates the required flow rates of nitrogen and air based on the set nitrogen parameters; the PLC control system quantitatively outputs the required nitrogen and air through a flow control element and mixes them into a mixed gas; the PLC control system acquires the nitrogen purity of the mixed gas and the purity of nitrogen in real time, and recalculates and adjusts the required flow rates of nitrogen and air in real time to ensure that the generated mixed gas meets the nitrogen purity set by the user. The aforementioned patent can provide mixed gases with a wider range of nitrogen purity values; moreover, the nitrogen purity values ​​of the mixed gases are more accurate. However, this patent only provides mixed gases with a wider range of nitrogen purity values ​​and more accurate nitrogen purity values, without considering how to effectively improve the overall efficiency of nitrogen production, nor how to minimize energy consumption.

[0004] Therefore, this invention proposes a nitrogen generator that precisely controls the purity and flow rate of nitrogen output. Summary of the Invention

[0005] This invention provides a nitrogen generator that precisely controls the purity and flow rate of nitrogen output. It quantifies the direct promoting effect of each type of adsorption treatment parameter on the nitrogen production process at each moment within a preset time period prior to the current moment, thereby obtaining a waveform diagram of the production promotion degree for each type of adsorption treatment parameter. This facilitates the acquisition of the optimal set temperature and pressure parameters for the current moment. Based on the waveform diagrams of the production promotion degree for all types of adsorption treatment parameters, the optimal set temperature and pressure parameters for the current moment are obtained, thereby accurately obtaining the minimum air intake parameter for the current moment. Finally, based on the minimum air intake parameter for the current moment, the optimal nitrogen production result for the current moment is obtained, effectively improving the overall efficiency of nitrogen production and minimizing energy consumption.

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

[0007] The acquisition module is used to obtain all gas processing parameters and all adsorption processing parameters for each time within a preset time period before the current time, based on all gas parameters and all adsorption parameters for each time within a preset time period before the current time.

[0008] The first calculation module is used to obtain the output promotion degree of each type of adsorption treatment parameter at each time within the preset time period before the current time, based on all types of gas treatment parameters and all types of adsorption treatment parameters at each time within the preset time period before the current time.

[0009] The analysis module is used to obtain the output promotion waveform of each type of adsorption treatment parameter based on the output promotion degree of each type of adsorption treatment parameter at all times within the preset time period before the current time, and to obtain the optimal set temperature parameter and the optimal set pressure parameter at the current time based on the output promotion waveform of all types of adsorption treatment parameters.

[0010] The second calculation module is used to obtain the minimum air intake parameters at the current moment based on the optimal set temperature parameters and the optimal set pressure parameters at the current moment.

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

[0012] Preferably, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a module comprising:

[0013] The first acquisition submodule is used to acquire all gas parameters for each time period within a preset time period before the current time. The all gas parameters include air intake parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output parameters.

[0014] The second acquisition submodule is used to acquire all adsorption parameters of all types of adsorption at each time within a preset time period before the current time, including adsorption temperature parameters and adsorption pressure parameters.

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

[0016] Preferably, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a processing submodule comprising:

[0017] The first processing unit is used to obtain all types of operation parameters by taking air intake parameters, air nitrogen purity parameters, adsorption temperature parameters, and adsorption pressure parameters as operation parameters, and to obtain all types of output parameters by taking nitrogen production purity parameters and nitrogen production quantity parameters as output parameters. It determines whether the difference between each type of output parameter at each time point within a preset time period before the current time point and the corresponding type of output parameter at all adjacent times of the corresponding time point is greater than the difference threshold of the corresponding type of output parameter. If so, the corresponding time point is used as the judgment time of the corresponding type of output parameter; otherwise, the corresponding type of output parameter at the corresponding time point is used as the processing parameter of the corresponding type of output parameter at the corresponding time point.

[0018] The second processing unit is used to determine whether, at each judgment time of each type of output parameter, there exists at least one type of operation parameter whose adjacent difference is greater than the threshold of the adjacent difference of the corresponding type of operation parameter. If so, the corresponding type of output parameter at the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time. Otherwise, the mean of the corresponding type of output parameters at all adjacent times of the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time.

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

[0020] Preferably, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a first calculation module comprising:

[0021] The preprocessing submodule is used to take the ambient temperature of the adsorption tower at each time within a preset time period before the current time as the reference ambient temperature at the corresponding time, and take the ambient pressure of the adsorption tower at each time within a preset time period before the current time as the reference ambient pressure at the corresponding time.

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

[0023] Wherein, β1 is the output promotion degree of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T is the value of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T0 is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.718.

[0024] The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameters at each moment within the preset time period before the current moment, based on all types of gas processing parameters, adsorption pressure processing parameters and reference environmental pressure at each moment within the preset time period before the current moment.

[0025] Preferably, in a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, the second calculation submodule obtains a method for determining the output promotion degree of the adsorption pressure processing parameters at each moment within a preset time period prior to the current moment, based on all gas processing parameters, adsorption pressure processing parameters, and reference ambient pressure. This method includes:

[0026] Wherein, β2 is the output promotion degree of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P is the value of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P0 is the value of the reference ambient pressure at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.718.

[0027] Preferably, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, including an analysis module:

[0028] The waveform drawing submodule is used to take all the times within the preset time period before the current time as the horizontal axis value, and the output promotion degree of each type of adsorption treatment parameter at the corresponding time as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption treatment parameter, and to connect all the output promotion degree points of each type of adsorption treatment parameter in sequence to obtain the output promotion degree waveform of each type of adsorption treatment parameter.

[0029] The analysis submodule is used to obtain the optimal set temperature and optimal set pressure parameters at the current moment based on the output promotion waveform of all types of adsorption treatment parameters.

[0030] The preferred nitrogen generator, which precisely controls the purity and flow rate of nitrogen output, includes an analysis submodule comprising:

[0031] The first analysis unit is used to take the intersection of the waveforms of the production promotion degree of the adsorption temperature treatment parameter and the waveform of the production promotion degree of the adsorption pressure treatment parameter as the convergence point at the current moment.

[0032] The second analysis unit is used to take the convergence point with the largest vertical coordinate value among all convergence points at the current time as the set convergence point at the current time, and take the adsorption temperature processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set temperature parameter at the current time, and take the adsorption pressure processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set pressure parameter at the current time.

[0033] Preferably, the nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a second calculation module, comprising:

[0034] The third acquisition submodule is used to acquire the control nitrogen output purity parameter at the current moment, and to take all moments in the preset time period before the current moment where the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference moment for setting the temperature, and to take all moments in the preset time period before the current moment where the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference moment for setting the pressure.

[0035] The third calculation submodule is used to obtain the minimum air intake parameter at the current moment based on the control nitrogen output purity parameter, the optimal set temperature parameter, the optimal set pressure parameter, all reference times for the set temperature, and all reference times for the set pressure.

[0036] Preferably, for a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, the third calculation submodule obtains the minimum air intake parameter at the current moment based on the controlled nitrogen output purity parameter, the optimal set temperature parameter, the optimal set pressure parameter, all reference times for the set temperature, and all reference times for the set pressure. The method includes:

[0037] Where σ is the value of the minimum air intake parameter at the current moment, and γ 1min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the temperature. 1max γ is the maximum value of the air intake volume processing parameter at all reference times for setting the temperature. 2min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the pressure. 2max The maximum value among the air intake flow rate processing parameters for all reference times at which the pressure is set, τ is the control nitrogen output purity parameter at the current time, and ε is the maximum value among the parameters for all reference times at which the pressure is set. 1max ε is the maximum value among the air nitrogen purity processing parameters at all reference times for setting the temperature. 2max T is the maximum value among all reference times for air nitrogen purity processing parameters at which the pressure is set. 1min P is the minimum value among the adsorption temperature treatment parameters at all reference times for setting the temperature. 2min The minimum value among the adsorption pressure processing parameters at all reference times for setting the pressure. ω represents the optimal set temperature parameter value at the current moment, and ω represents the optimal set pressure parameter value at the current moment.

[0038] The minimum air intake parameter at the current moment is obtained based on the value of the minimum air intake parameter at the current moment.

[0039] Preferably, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes an output module comprising:

[0040] The fourth acquisition submodule is used to acquire the control nitrogen output parameters at the current moment;

[0041] The access number analysis submodule is used to take the quotient between the current value of the control nitrogen output parameter and the current value of the minimum air intake parameter as the reference quotient, and the average of the minimum air nitrogen purity processing parameters at all reference times for the set temperature and the minimum air nitrogen purity processing parameters at all reference times for the set pressure as the reference average. The sum of the reference quotient and the reference average is rounded up and used as the adsorption tower access number at the current time.

[0042] The output submodule is used to obtain the optimal nitrogen production result at the current moment based on the optimal set temperature parameter, optimal set pressure parameter, minimum air intake parameter, and number of adsorption towers connected.

[0043] The beneficial effects of this invention compared to the prior art are as follows: This invention quantifies the direct promoting 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, thereby obtaining a waveform diagram of the production promotion degree of each type of adsorption treatment parameter. This facilitates the acquisition of the optimal setting temperature and optimal setting pressure parameters at the current moment. Based on the waveform diagrams of the production promotion degree of all types of adsorption treatment parameters, the optimal setting temperature and optimal setting pressure parameters at the current moment are obtained, thereby accurately obtaining the minimum air intake parameter at the current moment. Finally, based on the minimum air intake parameter at the current moment, the optimal nitrogen production result at the current moment is obtained, effectively improving the overall efficiency of nitrogen production and minimizing energy consumption.

[0044] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written documents of this application.

[0045] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0046] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0047] Figure 1 is a schematic diagram of a nitrogen generator that precisely controls the purity and flow rate of nitrogen output in an embodiment of the present invention;

[0048] Figure 2 is a schematic diagram of the acquisition module in an embodiment of the present invention. Detailed Implementation

[0049] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] Example 1:

[0051] This invention provides a nitrogen generator for precisely controlling the purity and flow rate of nitrogen output, as shown in Figure 1, comprising:

[0052] The acquisition module is used to obtain all gas processing parameters and all adsorption processing parameters for each time within a preset time period before the current time, based on all gas parameters and all adsorption parameters for each time within a preset time period before the current time.

[0053] The first calculation module is used to obtain the output promotion degree of each type of adsorption treatment parameter at each time within the preset time period before the current time, based on all types of gas treatment parameters and all types of adsorption treatment parameters at each time within the preset time period before the current time.

[0054] The analysis module is used to obtain the output promotion waveform of each type of adsorption treatment parameter based on the output promotion degree of each type of adsorption treatment parameter at all times within the preset time period before the current time, and to obtain the optimal set temperature parameter and the optimal set pressure parameter at the current time based on the output promotion waveform of all types of adsorption treatment parameters.

[0055] The second calculation module is used to obtain the minimum air intake parameters at the current moment based on the optimal set temperature parameters and the optimal set pressure parameters at the current moment.

[0056] The output module is used to obtain the optimal nitrogen production result at the current moment based on the minimum air intake parameter at the current moment.

[0057] In this embodiment, the preset time period is a pre-set time period used to obtain all types of gas treatment parameters and all types of adsorption treatment parameters.

[0058] 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. 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).

[0059] In this embodiment, the processing parameters for all types of gases are obtained by processing the parameters of all types of gases at each time within a preset time period before the current time, and can truly reflect the specific situation of the parameters of all types of gases at each time within the preset time period before the current time.

[0060] In this embodiment, all adsorption-type processing parameters are obtained by processing all adsorption-type parameters at each time within a preset time period before the current time, and can truly reflect the specific situation of all adsorption-type parameters at each time within the preset time period before the current time.

[0061] In this embodiment, the output promotion degree of all types of adsorption treatment parameters is a numerical value obtained based on all types of gas treatment parameters and all types of adsorption treatment parameters at each time within a preset time period before the current time. This value characterizes the direct promoting effect of all types of adsorption treatment parameters on the nitrogen production process at each time within the preset time period before the current time. The output promotion degree of all types of adsorption treatment parameters includes the output promotion degree of adsorption temperature treatment parameters and the output promotion degree of adsorption pressure treatment parameters.

[0062] In this embodiment, the output promotion waveform of each type of adsorption treatment parameter is a graph obtained based on the output promotion of each type of adsorption treatment parameter at all times within a preset time period before the current time. It reflects the fluctuation of the direct promoting effect of each type of adsorption treatment parameter on the nitrogen production process within the preset time period before the current time.

[0063] In this embodiment, the optimal set temperature parameter at the current moment is obtained from the waveform diagram of the production promotion degree based on all types of adsorption treatment parameters. The current moment is the temperature at which the adsorption temperature parameter needs to be adjusted to achieve the best direct promotion effect on the nitrogen production process.

[0064] In this embodiment, the optimal setting pressure parameter at the current moment is the output promotion waveform based on all types of adsorption treatment parameters. The obtained current moment is the pressure to which the adsorption pressure parameter at the current moment needs to be adjusted to achieve the best direct promotion effect on the nitrogen production process.

[0065] In this embodiment, the minimum air intake rate parameter at the current moment is the lowest value (m) that the air intake rate parameter needs to be adjusted to in order to make the nitrogen production purity parameter at the current moment the same as the controlled nitrogen output purity parameter at the current moment, based on the optimal set temperature parameter and the optimal set pressure parameter at the current moment. 3 ).

[0066] In this embodiment, the optimal nitrogen generation result at the current moment is obtained by adjusting the current adsorption temperature parameter to be the same as the current optimal set temperature parameter, adjusting the current adsorption pressure parameter to be the same as the optimal set pressure parameter, adjusting the current air intake parameter to be the same as the minimum air intake parameter, and adjusting the current number of adsorption towers connected to be the same as the current number of adsorption towers connected.

[0067] The beneficial effects of the above technology are as follows: This invention quantifies the direct promoting 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, thereby obtaining a waveform diagram of the production promotion degree of each type of adsorption treatment parameter. This facilitates the acquisition of the optimal setting temperature and optimal setting pressure parameters at the current moment. Based on the waveform diagrams of the production promotion degree of all types of adsorption treatment parameters, the optimal setting temperature and optimal setting pressure parameters at the current moment are obtained, thereby accurately obtaining the minimum air intake parameter at the current moment. Finally, based on the minimum air intake parameter at the current moment, the optimal nitrogen production result at the current moment is obtained, effectively improving the overall efficiency of nitrogen production and minimizing energy consumption.

[0068] Example 2:

[0069] Based on Example 1, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, including a module (referring to Figure 2), comprises:

[0070] The first acquisition submodule is used to acquire all gas parameters for each time period within a preset time period before the current time. The all gas parameters include air intake parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output parameters.

[0071] The second acquisition submodule is used to acquire all adsorption parameters of all types of adsorption at each time within a preset time period before the current time, including adsorption temperature parameters and adsorption pressure parameters.

[0072] The processing submodule is used to process the data of all gas parameters and all adsorption parameters at each time point within a preset time period before the current time point, and obtain the processing parameters of all gas parameters and all adsorption parameters at each time point within the preset time period before the current time point.

[0073] In this embodiment, the air intake volume parameter is the amount of air (m³) drawn from the nitrogen generator environment and input into a single adsorption tower at each moment within a preset time period prior to the current moment. 3 ).

[0074] 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 time within a preset time period before the current time.

[0075] In this embodiment, the nitrogen production purity parameter is the value of the purity of the nitrogen output by the nitrogen generator at each moment within a preset time period before the current moment, for example, 0.991.

[0076] In this embodiment, the nitrogen output parameter is the amount of nitrogen output from the nitrogen generator at each moment within a preset time period prior to the current moment (m³). 3 ).

[0077] In this embodiment, the adsorption temperature parameter is the temperature (in degrees Celsius) inside the adsorption tower at each moment within a preset time period prior to the current moment.

[0078] In this embodiment, the adsorption pressure parameter is the pressure (Pa) inside the adsorption tower at each time point within a preset time period prior to the current time.

[0079] In this embodiment, the data processing is a process of obtaining all gas processing parameters and all adsorption processing parameters for each time within a preset time period before the current time, based on all gas parameters and all adsorption parameters for each time within the preset time period before the current time.

[0080] In this embodiment, all gas processing parameters include air intake processing parameters, air nitrogen purity processing parameters, nitrogen output purity processing parameters, and nitrogen output processing parameters.

[0081] In this embodiment, all adsorption treatment parameters include adsorption temperature treatment parameters and adsorption pressure treatment parameters.

[0082] The beneficial effects of the above technology are as follows: it clarifies the specific parameter items of all types of gas parameters and all types of adsorption parameters at each time within the preset time period before the current time, and then obtains all types of gas treatment parameters and all types of adsorption treatment parameters at each time within the preset time period before the current time based on all types of gas parameters and all types of adsorption parameters at each time within the preset time period before the current time.

[0083] Example 3:

[0084] Based on Example 2, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a processing submodule comprising:

[0085] The first processing unit is used to obtain all types of operation parameters by taking air intake parameters, air nitrogen purity parameters, adsorption temperature parameters, and adsorption pressure parameters as operation parameters, and to obtain all types of output parameters by taking nitrogen production purity parameters and nitrogen production quantity parameters as output parameters. It determines whether the difference between each type of output parameter at each time point within a preset time period before the current time point and the corresponding type of output parameter at all adjacent times of the corresponding time point is greater than the difference threshold of the corresponding type of output parameter. If so, the corresponding time point is used as the judgment time of the corresponding type of output parameter; otherwise, the corresponding type of output parameter at the corresponding time point is used as the processing parameter of the corresponding type of output parameter at the corresponding time point.

[0086] The second processing unit is used to determine whether, at each judgment time of each type of output parameter, there exists at least one type of operation parameter whose adjacent difference is greater than the threshold of the adjacent difference of the corresponding type of operation parameter. If so, the corresponding type of output parameter at the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time. Otherwise, the mean of the corresponding type of output parameters at all adjacent times of the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time.

[0087] The third processing unit is used to determine whether the difference between each type of operation parameter at each time point within the preset time period before the current time and the corresponding type of operation parameter at all adjacent time points is greater than the difference threshold of the corresponding operation parameter. If so, the average value of the corresponding type of operation parameter at all adjacent time points is used as the processing parameter of the corresponding type of operation parameter at the current time. Otherwise, the corresponding type of operation parameter at the current time is used as the processing parameter of the corresponding type of operation parameter at the current time. Based on the processing parameters of the operation parameters and the processing parameters of the output parameters at each time point within the preset time period before the current time, the processing parameters of all types of gases and all types of adsorption parameters at each time point within the preset time period before the current time are obtained.

[0088] In this embodiment, the adjacent times of each time point are the remaining times in the time domain that are adjacent to each time point within a preset time period before the current time point.

[0089] In this embodiment, the pre-set difference threshold of the output parameters is used to obtain the difference threshold at all judgment times for each type of output parameter, and each type of output parameter corresponds to a separate difference threshold.

[0090] In this embodiment, the adjacent difference of the operating parameters at each time step is the average difference between each type of operating parameter at each time step and the corresponding type of operating parameters at all adjacent time steps at the corresponding time step.

[0091] In this embodiment, the adjacent difference threshold of the operation parameter is a pre-set threshold for the processing parameter used to obtain each type of output parameter at each judgment time, and each type of operation parameter corresponds to an adjacent difference threshold.

[0092] In this embodiment, the difference threshold of the operation parameters is a pre-set difference threshold of the processing parameters used to obtain the difference of each type of operation parameter at each time, and each type of operation parameter corresponds to a separate difference threshold.

[0093] In this embodiment, based on the processing parameters of the operation parameters and the processing parameters of the output parameters at each time point within a preset time period before the current time, the processing parameters of all types of gases and all types of adsorption parameters at each time point within the preset time period before the current time are obtained, namely:

[0094] The processing parameters of air intake volume, air nitrogen purity, nitrogen output purity, nitrogen output, adsorption temperature, and adsorption pressure at each time point within the preset time period before the current time are used as the air intake volume processing parameters at each time point within the preset time period before the current time.

[0095] The beneficial effects of the above technology are as follows: This embodiment provides a detailed method for accurately obtaining processing parameters that can truly reflect the specific situation of all types of gas parameters and all types of adsorption parameters at each moment within a preset time period before the current moment, which facilitates the calculation of subsequent production promotion degree.

[0096] Example 4:

[0097] Based on Example 1, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a first calculation module comprising:

[0098] The preprocessing submodule is used to take the ambient temperature of the adsorption tower at each time within a preset time period before the current time as the reference ambient temperature at the corresponding time, and take the ambient pressure of the adsorption tower at each time within a preset time period before the current time as the reference ambient pressure at the corresponding time.

[0099] The first calculation submodule is used to obtain the output promotion degree of the adsorption temperature treatment parameters at each moment within the preset time period before the current moment, based on all gas processing parameters, adsorption temperature processing parameters, and reference ambient temperature at each moment within the preset time period before the current moment. That is:

[0100] Wherein, β1 is the output promotion degree of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T is the value of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T0 is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.718.

[0101] The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameters at each moment within the preset time period before the current moment, based on all types of gas processing parameters, adsorption pressure processing parameters and reference environmental pressure at each moment within the preset time period before the current moment.

[0102] In this embodiment, the ambient temperature of the adsorption tower is the atmospheric temperature (degrees Celsius) of the environment where the nitrogen generator is located.

[0103] In this embodiment, the ambient pressure of the adsorption tower is the atmospheric pressure (Pa) of the environment where the nitrogen generator is located.

[0104] The beneficial effects of the above technology are as follows: based on the processing parameters of all types of gases, the adsorption temperature processing parameters, and the reference ambient temperature at each moment within the preset time period before the current moment, the output promotion degree of the adsorption temperature processing parameters at each moment within the preset time period before the current moment is obtained, thereby quantifying the direct promoting effect of the adsorption temperature processing parameters at each moment within the preset time period before the current moment on the nitrogen production process.

[0105] Example 5:

[0106] Based on Example 4, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, the second calculation submodule obtains a method for the output promotion of the adsorption pressure processing parameters at each moment within a preset time period before the current moment, based on all gas processing parameters, adsorption pressure processing parameters, and reference environmental pressure. This method includes:

[0107] Wherein, β2 is the output promotion degree of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P is the value of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P0 is the value of the reference ambient pressure at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.718.

[0108] The beneficial effects of the above technology are as follows: This embodiment provides a detailed method for quantifying the direct promoting effect of the adsorption pressure treatment parameters at each moment within a preset time period before the current moment on the nitrogen production process.

[0109] Example 6:

[0110] Based on Example 1, a nitrogen generator for precisely controlling the purity and flow rate of nitrogen output, and an analysis module, include:

[0111] The waveform drawing submodule is used to take all the times within the preset time period before the current time as the horizontal axis value, and the output promotion degree of each type of adsorption treatment parameter at the corresponding time as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption treatment parameter, and to connect all the output promotion degree points of each type of adsorption treatment parameter in sequence to obtain the output promotion degree waveform of each type of adsorption treatment parameter.

[0112] The analysis submodule is used to obtain the optimal set temperature and optimal set pressure parameters at the current moment based on the output promotion waveform of all types of adsorption treatment parameters.

[0113] In this embodiment, the connections are made sequentially according to the x-coordinates of all output promotion points for each type of adsorption treatment parameter, from smallest to largest.

[0114] The beneficial effects of the above technology are as follows: Based on the output promotion degree of each type of adsorption treatment parameter at all times within the preset time period before the current time, the waveform diagram of the output promotion degree of each type of adsorption treatment parameter can be accurately obtained, which facilitates the acquisition of the optimal setting temperature parameter and the optimal setting pressure parameter at the current time. Furthermore, based on the waveform diagram of the output promotion degree of all types of adsorption treatment parameters, the optimal setting temperature parameter and the optimal setting pressure parameter at the current time can be obtained, which facilitates the subsequent calculation of the minimum air intake parameter at the current time.

[0115] Example 7:

[0116] Based on Example 6, the nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes an analysis submodule, comprising:

[0117] The first analysis unit is used to take the intersection of the waveforms of the production promotion degree of the adsorption temperature treatment parameter and the waveform of the production promotion degree of the adsorption pressure treatment parameter as the convergence point at the current moment.

[0118] The second analysis unit is used to take the convergence point with the largest vertical coordinate value among all convergence points at the current time as the set convergence point at the current time, and take the adsorption temperature processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set temperature parameter at the current time, and take the adsorption pressure processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set pressure parameter at the current time.

[0119] The beneficial effects of the above technology are as follows: Based on the waveform diagram of the production promotion degree of all types of adsorption treatment parameters, all convergence points at the current moment are obtained, and then based on all convergence points at the current moment, the optimal set temperature parameters and optimal set pressure parameters at the current moment are obtained, and the temperature and pressure values ​​that need to be adjusted to the current moment to achieve the best direct promotion effect of nitrogen production process are accurately obtained.

[0120] Example 8:

[0121] Based on Example 1, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes a second calculation module, comprising:

[0122] The third acquisition submodule is used to acquire the control nitrogen output purity parameter at the current moment, and to take all moments in the preset time period before the current moment where the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference moment for setting the temperature, and to take all moments in the preset time period before the current moment where the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference moment for setting the pressure.

[0123] The third calculation submodule is used to obtain the minimum air intake parameter at the current moment based on the control nitrogen output purity parameter, the optimal set temperature parameter, the optimal set pressure parameter, all reference times for the set temperature, and all reference times for the set pressure.

[0124] In this embodiment, the control nitrogen output purity parameter at the current moment is the purity that the controller inputs into the nitrogen generator at the current moment, which is the purity that the nitrogen output by the nitrogen generator can achieve.

[0125] The beneficial effects of the above technology are as follows: Based on the optimal set temperature parameter and the optimal set pressure parameter at the current moment, all reference times for the set temperature and all reference times for the set pressure are obtained. Then, based on all reference times for the set temperature and all reference times for the set pressure, the minimum air intake parameter at the current moment is obtained. The minimum value to which the air intake parameter at the current moment needs to be adjusted is accurately obtained so that the nitrogen production purity parameter at the current moment is the same as the controlled nitrogen output purity parameter at the current moment.

[0126] Example 9:

[0127] Based on Example 8, for a nitrogen generator that precisely controls the purity and flow rate of nitrogen output, the third calculation submodule obtains the minimum air intake parameter at the current moment based on the controlled nitrogen output purity parameter, the optimal set temperature parameter, the optimal set pressure parameter, all reference times for the set temperature, and all reference times for the set pressure. The method includes:

[0128] Where σ is the value of the minimum air intake parameter at the current moment, and γ 1min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the temperature. 1max γ is the maximum value of the air intake volume processing parameter at all reference times for setting the temperature. 2min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the pressure. 2max The maximum value among the air intake flow rate processing parameters for all reference times at which the pressure is set, τ is the control nitrogen output purity parameter at the current time, and ε is the maximum value among the parameters for all reference times at which the pressure is set. 1max ε is the maximum value among the air nitrogen purity processing parameters at all reference times for setting the temperature. 2max T is the maximum value among all reference times for air nitrogen purity processing parameters at which the pressure is set. 1min P is the minimum value among the adsorption temperature treatment parameters at all reference times for setting the temperature. 2min The minimum value among the adsorption pressure processing parameters at all reference times for setting the pressure. ω represents the optimal set temperature parameter value at the current moment, and ω represents the optimal set pressure parameter value at the current moment.

[0129] The minimum air intake parameter at the current moment is obtained based on the value of the minimum air intake parameter at the current moment.

[0130] The beneficial effects of the above technology are as follows: based on all reference times for the set temperature and all reference times for the set pressure, the minimum air intake parameter at the current time is obtained, and the minimum value that the air intake parameter at the current time needs to be adjusted to in order to make the nitrogen production purity parameter at the current time the same as the controlled nitrogen output purity parameter at the current time is obtained.

[0131] Example 10:

[0132] Based on Example 9, a nitrogen generator that precisely controls the purity and flow rate of nitrogen output includes an output module comprising:

[0133] The fourth acquisition submodule is used to acquire the control nitrogen output parameters at the current moment;

[0134] The access number analysis submodule is used to take the quotient between the current value of the control nitrogen output parameter and the current value of the minimum air intake parameter as the reference quotient, and the average of the minimum air nitrogen purity processing parameters at all reference times for the set temperature and the minimum air nitrogen purity processing parameters at all reference times for the set pressure as the reference average. The sum of the reference quotient and the reference average is rounded up and used as the adsorption tower access number at the current time.

[0135] The output submodule is used to obtain the optimal nitrogen production result at the current moment based on the optimal set temperature parameter, optimal set pressure parameter, minimum air intake parameter, and number of adsorption towers connected.

[0136] In this embodiment, the current nitrogen output parameter is the amount of nitrogen (m³) that the controller inputs to the nitrogen generator at the current moment, which is the desired output from the nitrogen generator. 3 ).

[0137] In this embodiment, the number of adsorption towers connected at the current moment is the number of adsorption towers that need to be connected (activated) in the nitrogen generator at the current moment.

[0138] The beneficial effects of the above technology are as follows: based on the minimum air intake parameter at the current moment, the number of adsorption towers connected at the current moment can be accurately obtained, and then based on the number of adsorption towers connected at the current moment, the optimal nitrogen production result at the current moment can be obtained, which effectively improves the overall efficiency of nitrogen production and minimizes energy consumption.

[0139] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from the spirit and scope of this invention, and this invention is also intended to include these modifications and variations.

Claims

1. A nitrogen generator for precisely controlling the purity and flow rate of the output nitrogen gas, characterized by comprising: include: The acquisition module is used to obtain all gas processing parameters and all adsorption processing parameters for each time within a preset time period before the current time, based on all gas parameters and all adsorption parameters for each time within a preset time period before the current time. The first calculation module is used to obtain the output promotion degree of each type of adsorption treatment parameter at each time within the preset time period before the current time, based on all types of gas treatment parameters and all types of adsorption treatment parameters at each time within the preset time period before the current time. The analysis module is used to obtain the output promotion waveform of each type of adsorption treatment parameter based on the output promotion degree of each type of adsorption treatment parameter at all times within the preset time period before the current time, and to obtain the optimal set temperature parameter and the optimal set pressure parameter at the current time based on the output promotion waveform of all types of adsorption treatment parameters. The second calculation module is used to obtain the minimum air intake parameters at the current moment based on the optimal set temperature parameters and the optimal set pressure parameters at the current moment. The output module is used to obtain the optimal nitrogen production result at the current moment based on the minimum air intake parameter at the current moment.

2. The nitrogen generator of claim 1, wherein, The acquisition module includes: The first acquisition submodule is used to acquire all gas parameters for each time period within a preset time period before the current time. The all gas parameters include air intake parameters, air nitrogen purity parameters, nitrogen output purity parameters, and nitrogen output parameters. The second acquisition submodule is used to acquire all adsorption parameters of all types of adsorption at each time within a preset time period before the current time, including adsorption temperature parameters and adsorption pressure parameters. The processing submodule is used to process the data of all gas parameters and all adsorption parameters at each time point within a preset time period before the current time point, and obtain the processing parameters of all gas parameters and all adsorption parameters at each time point within the preset time period before the current time point.

3. The nitrogen generator of claim 2, wherein, The processing submodule includes: The first processing unit is used to obtain all types of operation parameters by taking air intake parameters, air nitrogen purity parameters, adsorption temperature parameters, and adsorption pressure parameters as operation parameters, and to obtain all types of output parameters by taking nitrogen production purity parameters and nitrogen production quantity parameters as output parameters. It determines whether the difference between each type of output parameter at each time point within a preset time period before the current time point and the corresponding type of output parameter at all adjacent times of the corresponding time point is greater than the difference threshold of the corresponding type of output parameter. If so, the corresponding time point is used as the judgment time of the corresponding type of output parameter; otherwise, the corresponding type of output parameter at the corresponding time point is used as the processing parameter of the corresponding type of output parameter at the corresponding time point. The second processing unit is used to determine whether, at each judgment time of each type of output parameter, there exists at least one type of operation parameter whose adjacent difference is greater than the threshold of the adjacent difference of the corresponding type of operation parameter. If so, the corresponding type of output parameter at the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time. Otherwise, the mean of the corresponding type of output parameters at all adjacent times of the corresponding judgment time is used as the processing parameter of the corresponding type of output parameter at the corresponding judgment time. The third processing unit is used to determine whether the difference between each type of operation parameter at each time point within the preset time period before the current time and the corresponding type of operation parameter at all adjacent time points is greater than the difference threshold of the corresponding operation parameter. If so, the average value of the corresponding type of operation parameter at all adjacent time points is used as the processing parameter of the corresponding type of operation parameter at the current time. Otherwise, the corresponding type of operation parameter at the current time is used as the processing parameter of the corresponding type of operation parameter at the current time. Based on the processing parameters of the operation parameters and the processing parameters of the output parameters at each time point within the preset time period before the current time, the processing parameters of all types of gases and all types of adsorption parameters at each time point within the preset time period before the current time are obtained.

4. The nitrogen generator of claim 1, wherein, The first calculation module includes: The preprocessing submodule is used to take the ambient temperature of the adsorption tower at each time within a preset time period before the current time as the reference ambient temperature at the corresponding time, and take the ambient pressure of the adsorption tower at each time within a preset time period before the current time as the reference ambient pressure at the corresponding time. The first calculation sub-module is configured to obtain the output promotion degree of the adsorption temperature processing parameter at each time point in the preset time period before the current time point based on all the gas-like processing parameters, the adsorption temperature processing parameter and the reference ambient temperature at each time point in the preset time period before the current time point, i.e. Wherein, β1 is the output promotion degree of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T is the value of the adsorption temperature treatment parameter at the current calculation time within the preset time period before the current time, T0 is the value of the reference ambient temperature at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.

718. The second calculation submodule is used to obtain the output promotion degree of the adsorption pressure processing parameters at each time within the preset time period before the current time, based on all types of gas processing parameters, adsorption pressure processing parameters and reference environmental pressure at each time within the preset time period before the current time.

5. The nitrogen generator of claim 4, wherein, The second calculation submodule obtains a method for determining the output promotion degree of the adsorption pressure treatment parameters at each moment within a preset time period prior to the current moment, based on all gas-type treatment parameters, adsorption pressure treatment parameters, and reference ambient pressure. This method includes: Wherein, β2 is the output promotion degree of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P is the value of the adsorption pressure treatment parameter at the current calculation time within the preset time period before the current time, P0 is the value of the reference ambient pressure at the current calculation time within the preset time period before the current time, γ is the value of the air intake volume treatment parameter at the current calculation time within the preset time period before the current time, ε is the air nitrogen purity treatment parameter at the current calculation time within the preset time period before the current time, α is the value of the nitrogen output treatment parameter at the current calculation time within the preset time period before the current time, ε is the nitrogen output purity treatment parameter at the current calculation time within the preset time period before the current time, ln is the natural logarithm, and the natural constant e is 2.

718.

6. The nitrogen generator of claim 1, wherein, The analysis module includes: The waveform drawing submodule is used to take all the times within the preset time period before the current time as the horizontal axis value, and the output promotion degree of each type of adsorption treatment parameter at the corresponding time as the vertical axis value, to obtain all the output promotion degree points of each type of adsorption treatment parameter, and to connect all the output promotion degree points of each type of adsorption treatment parameter in sequence to obtain the output promotion degree waveform of each type of adsorption treatment parameter. The analysis submodule is used to obtain the optimal set temperature and optimal set pressure parameters at the current moment based on the output promotion waveform of all types of adsorption treatment parameters.

7. The nitrogen generator of claim 6, wherein, The analysis submodule includes: The first analysis unit is used to take the intersection of the waveforms of the production promotion degree of the adsorption temperature treatment parameter and the waveform of the production promotion degree of the adsorption pressure treatment parameter as the convergence point at the current moment. The second analysis unit is used to take the convergence point with the largest vertical coordinate value among all convergence points at the current time as the set convergence point at the current time, and take the adsorption temperature processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set temperature parameter at the current time, and take the adsorption pressure processing parameter corresponding to the horizontal coordinate of the set convergence point at the current time as the optimal set pressure parameter at the current time.

8. The nitrogen generator of claim 1, wherein, The second calculation module includes: The third acquisition submodule is used to acquire the control nitrogen output purity parameter at the current moment, and to take all moments in the preset time period before the current moment where the adsorption temperature processing parameter is the same as the optimal setting temperature parameter at the current moment as the reference moment for setting the temperature, and to take all moments in the preset time period before the current moment where the adsorption pressure processing parameter is the same as the optimal setting pressure parameter at the current moment as the reference moment for setting the pressure. The third calculation submodule is used to obtain the minimum air intake parameter at the current moment based on the control nitrogen output purity parameter, the optimal set temperature parameter, the optimal set pressure parameter, all reference times for the set temperature, and all reference times for the set pressure.

9. The nitrogen generator of claim 8, wherein, The third calculation sub-module obtains the method for obtaining the lowest air intake amount parameter at the current time based on the control nitrogen output purity parameter at the current time, the optimal setting temperature parameter at the current time, the optimal setting pressure parameter at the current time, all reference time points of the setting temperature, and all reference time points of the setting pressure, including: Where σ is the value of the minimum air intake parameter at the current moment, and γ 1min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the temperature. 1max γ is the maximum value of the air intake volume processing parameter at all reference times for setting the temperature. 2min γ is the minimum value of the air intake volume processing parameter at all reference times for setting the pressure. 2max The maximum value among the air intake flow rate processing parameters for all reference times at which the pressure is set, τ is the control nitrogen output purity parameter at the current time, and ε is the maximum value among the parameters for all reference times at which the pressure is set. 1max ε is the maximum value among the air nitrogen purity processing parameters at all reference times for setting the temperature. 2max T is the maximum value among all reference times for air nitrogen purity processing parameters at which the pressure is set. 1min P is the minimum value among the adsorption temperature treatment parameters at all reference times for setting the temperature. 2min The minimum value among the adsorption pressure processing parameters at all reference times for setting the pressure. ω represents the optimal set temperature parameter value at the current moment, and ω represents the optimal set pressure parameter value at the current moment. The minimum air intake parameter at the current moment is obtained based on the value of the minimum air intake parameter at the current moment.

10. The nitrogen generator of claim 9, wherein, Output module, including: The fourth acquisition submodule is used to acquire the control nitrogen output parameters at the current moment; The access number analysis submodule is used to take the quotient between the current value of the control nitrogen output parameter and the current value of the minimum air intake parameter as the reference quotient, and the average of the minimum air nitrogen purity processing parameters at all reference times for the set temperature and the minimum air nitrogen purity processing parameters at all reference times for the set pressure as the reference average. The sum of the reference quotient and the reference average is rounded up and used as the adsorption tower access number at the current time. The output submodule is used to obtain the optimal nitrogen production result at the current moment based on the optimal set temperature parameter, optimal set pressure parameter, minimum air intake parameter, and number of adsorption towers connected.

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