Double-power-supply switching device and switching method for pressure swing adsorption oxygen production control unit

Abstract

The invention relates to the technical field of industrial oxygen production equipment, in particular to a pressure swing adsorption oxygen production control unit dual-power-supply switching device and a switching method. Comprising an intelligent detection end, an abnormity monitoring end, an ATSE end and a power supply end, the intelligent detection end comprises a detection module and a data processing module, the abnormity monitoring end comprises an abnormity identification module, an alarm module and a response module, the ATSE end comprises an instruction receiving unit, an automatic change-over switch unit and a switching execution unit, and the power supply end comprises a main power supply unit and a standby power supply unit. According to the design, the sudden power loss fault of the control unit can be overcome, the load can be automatically transferred to the standby power supply for continuous operation, and the problems of production loss and potential safety hazards caused by the sudden power loss accident of the pressure swing adsorption oxygen production control unit to an enterprise are solved; and the overall stability and safety of the pressure swing adsorption oxygen generation system can be enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial oxygen production equipment, and in particular to a dual power supply switching device and a switching method for a pressure swing adsorption oxygen production control unit. Background Art

[0002] Among industrial oxygen production equipment, pressure swing adsorption oxygen production equipment is highly favored for its advantages such as high efficiency, energy saving, easy operation and maintenance. It can not only meet the demand for oxygen in the industrial field, but also can be customized and optimized according to specific application scenarios and needs. Its basic principle is to use specific adsorbents to have a much greater adsorption capacity for impurities such as nitrogen under pressurized conditions than oxygen, thereby achieving oxygen separation and purification. During the adsorption process, as the pressure changes, the amount of nitrogen adsorbed by the adsorbent will also change, thereby achieving continuous production of oxygen.

[0003] However, there are obvious disadvantages in the traditional single power supply mode of the pressure swing adsorption oxygen production device. Once the main power supply fails, the oxygen production control logic control process system will be interrupted, causing losses to production and even safety hazards. Summary of the invention

[0004] The purpose of the present invention is to provide a dual power supply switching device and switching method for a pressure swing adsorption oxygen production control unit, aiming to solve the technical problem that in the prior art, there are obvious shortcomings in the traditional single power supply mode of the pressure swing adsorption oxygen production device. Once the main power supply fails, the oxygen production control logic control process system will be interrupted, causing losses to production and even safety hazards.

[0005] To achieve the above-mentioned purpose, the present invention adopts a dual power switching device of a pressure swing adsorption oxygen production control unit, comprising an intelligent detection end, an abnormal monitoring end, an ATSE end and a power supply end, wherein the intelligent detection end comprises a detection module and a data processing module, the abnormal monitoring end comprises an abnormal identification module, an alarm module and a response module, the ATSE end comprises an instruction receiving unit, an automatic transfer switch unit and a switching execution unit, the power supply end comprises a main power supply unit and a backup power supply unit, the intelligent detection end is connected to the power supply end, the abnormal monitoring end is connected to the intelligent detection end, and the ATSE end is connected to the abnormal monitoring end;

[0006] The detection module is used to detect the voltage value, current value and temperature value of the main power supply unit;

[0007] The data processing module is used to remove noise, filter and amplify the detected voltage value, current value and temperature value;

[0008] The abnormality identification module is used to compare the detected voltage value, current value and temperature value with the preset value to determine whether they are abnormal, and send an abnormal signal to the ATSE end;

[0009] The alarm module is used to generate an alarm signal and send it to the response module;

[0010] The response module is used to emit a buzzer sound and turn on a flashing light to alert the staff according to the generated alarm signal;

[0011] The instruction receiving unit is used to receive an abnormal signal;

[0012] The automatic transfer switch unit and the switching execution unit are used to quickly switch to the backup power supply unit for continued use of the main power supply.

[0013] Wherein, the detection module comprises a current sensor unit, a voltage sensor unit and a temperature sensor unit, and the current sensor unit, the voltage sensor unit and the temperature sensor unit are all connected to the power supply end;

[0014] The current sensor unit is used to detect the current of the main power supply unit;

[0015] The voltage sensor unit is used to detect the voltage of the main power supply unit;

[0016] The temperature sensor unit is used to detect the temperature of the main power supply unit.

[0017] Wherein, the data processing module includes a data acquisition unit, a data processing unit, a data storage unit and a data sending unit, and the data acquisition unit, the data processing unit, the data storage unit and the data sending unit are all connected to the power supply end;

[0018] The data acquisition unit is used to collect the voltage value, current value and temperature value that need to be processed;

[0019] The data processing unit is used to remove noise, filter and amplify the voltage value, current value and temperature value;

[0020] The data storage unit is used to store the voltage value, current value and temperature value after denoising, filtering and amplification;

[0021] The data sending unit is used to send the voltage value, current value and temperature value after denoising, filtering and amplification to the abnormality identification module.

[0022] The abnormality identification module includes a feature extraction unit, a threshold setting unit, an abnormality monitoring algorithm unit and an instruction sending unit, and the feature extraction unit, the threshold setting unit, the abnormality monitoring algorithm unit and the instruction sending unit are all connected to the intelligent detection terminal;

[0023] The feature extraction unit is used to extract key values ​​among voltage values, current values ​​and temperature values;

[0024] The threshold setting unit is used to set preset values ​​of voltage value, current value and temperature value;

[0025] The abnormality monitoring algorithm unit is used to compare the key value with the preset value according to the algorithm to determine whether it is abnormal;

[0026] The instruction sending unit is used to send an abnormal signal to the ATSE end.

[0027] Wherein, the alarm module comprises an alarm signal generating unit and an alarm signal sending unit, and both the alarm signal generating unit and the alarm signal sending unit are connected to the intelligent detection terminal;

[0028] The alarm signal generating unit is used to generate an alarm signal;

[0029] The data generated by the alarm signal transmitting unit is transmitted to a staff member.

[0030] Wherein, the response module includes a buzzer unit and a flashing light unit, and both the buzzer unit and the flashing light unit are connected to the intelligent detection end;

[0031] The buzzer unit is used to emit a buzzing sound according to the generated alarm signal;

[0032] The flashing light unit is used to turn on a flashing light according to the generated alarm signal.

[0033] The present invention also provides a dual power switching method for a pressure swing adsorption oxygen production control unit, which is applied to the dual power switching device for the pressure swing adsorption oxygen production control unit described above, and comprises the following steps:

[0034] First, the detection module detects the current value, voltage value and temperature value of the main power supply unit in real time, and the data processing module denoises, filters and amplifies the detected current value, voltage value and temperature value, and sends them to the abnormality identification module;

[0035] Secondly, the abnormality identification module extracts the key value, compares the preset value with the key value, and if the key value exceeds the preset value, it is considered abnormal, and an abnormal signal is sent to the ATSE end, and then an alarm and response are issued;

[0036] At the same time, the instruction receiving unit receives the abnormal signal and controls the switching execution unit to operate the automatic transfer switch unit, turns on the backup power supply unit, and then combines with the main power supply unit to provide dual power supply for the pressure swing adsorption oxygen generator;

[0037] Finally, the intelligent detection end and the abnormality monitoring end continuously detect the voltage value, current value and temperature value of the backup power supply unit.

[0038] A dual power switching device and a switching method for a pressure swing adsorption oxygen production control unit of the present invention include an intelligent detection end, an abnormal monitoring end, an ATSE end and a power supply end, wherein the intelligent detection end includes a detection module and a data processing module, the abnormal monitoring end includes an abnormal identification module, an alarm module and a response module, the ATSE end includes an instruction receiving unit, an automatic transfer switch unit and a switching execution unit, the power supply end includes a main power supply unit and a backup power supply unit, the intelligent detection end is connected to the power supply end, the abnormal monitoring end is connected to the intelligent detection end, and the ATSE end is connected to the abnormal monitoring end, the power state of the main power supply unit is detected in real time through the intelligent detection end and the abnormal monitoring end, and if an abnormality occurs, the ATSE end is detected through the abnormal monitoring end. The backup power supply unit is switched on the ATSE end to provide power to the main power supply unit. This design overcomes the problem of sudden power failure in the control unit and can automatically transfer the load to the backup power supply to continue operation, thereby solving the problem of sudden power failure in the pressure swing adsorption oxygen production control unit causing production losses and safety hazards to the enterprise. It can not only ensure the continuity of power supply to the industrial oxygen production control unit, but also enhance the overall stability and safety of the pressure swing adsorption oxygen production system. In addition, its fully automatic and intelligent design makes maintenance and operation more convenient, reduces equipment maintenance costs and time, and effectively solves the obvious shortcomings in the traditional single power supply mode of the pressure swing adsorption oxygen production device. Once the main power supply fails, the oxygen production control logic control process system will be interrupted, causing losses to production and even safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a schematic diagram of the principle of a dual power supply switching device of a pressure swing adsorption oxygen production control unit of the present invention.

[0041] Figure 2 It is a schematic diagram of the principle of the detection module in the dual power switching device of the pressure swing adsorption oxygen production control unit of the present invention.

[0042] Figure 3 It is a principle schematic diagram of a data processing module in a dual power supply switching device of a pressure swing adsorption oxygen production control unit of the present invention.

[0043] Figure 4It is a schematic diagram of the principle of an abnormality identification module in a dual power supply switching device of a pressure swing adsorption oxygen production control unit of the present invention.

[0044] Figure 5 It is a schematic diagram of the principle of the alarm module in the dual power supply switching device of the pressure swing adsorption oxygen production control unit of the present invention.

[0045] Figure 6 It is a schematic diagram of the principle of the response module in the dual power switching device of the pressure swing adsorption oxygen production control unit of the present invention.

[0046] Figure 7 It is a dual power switching principle diagram of a main power unit and a backup power unit in a dual power switching device of a pressure swing adsorption oxygen production control unit of the present invention.

[0047] Figure 8 The invention discloses a flow chart of the steps of a dual power supply switching method for a pressure swing adsorption oxygen production control unit.

[0048] 1-intelligent detection end, 2-abnormal monitoring end, 3-ATSE end, 4-detection module, 5-data processing module, 6-abnormal identification module, 7-alarm module, 8-response module, 9-instruction receiving unit, 10-automatic transfer switch unit, 11-switching execution unit, 12-main power supply unit, 13-backup power supply unit, 14-current sensor unit, 15-voltage sensor unit, 16-temperature sensor unit, 17-data acquisition unit, 18-data processing unit, 19-data storage unit, 20-data sending unit, 21-feature extraction unit, 22-threshold setting unit, 23-abnormal monitoring algorithm unit, 24-instruction sending unit, 25-alarm signal generating unit, 26-alarm signal sending unit, 27-buzzer unit, 28-flashing light unit, 29-power supply end. DETAILED DESCRIPTION

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0050] See also Figure 1 to Figure 7The present invention provides a dual power switching device for a pressure swing adsorption oxygen production control unit, comprising an intelligent detection terminal 1, an abnormal monitoring terminal 2, an ATSE terminal 3 and a power supply terminal 29, wherein the intelligent detection terminal 1 comprises a detection module 4 and a data processing module 5, the abnormal monitoring terminal 2 comprises an abnormal identification module 6, an alarm module 7 and a response module 8, the ATSE terminal 3 comprises an instruction receiving unit 9, an automatic transfer switch unit 10 and a switching execution unit 11, the power supply terminal 29 comprises a main power supply unit 12 and a backup power supply unit 13, the intelligent detection terminal 1 is connected to the power supply terminal 29, the abnormal monitoring terminal 2 is connected to the intelligent detection terminal 1, and the ATSE terminal 3 is connected to the abnormal monitoring terminal 2;

[0051] The detection module 4 is used to detect the voltage value, current value and temperature value of the main power supply unit 12;

[0052] The data processing module 5 is used to remove noise, filter and amplify the detected voltage value, current value and temperature value;

[0053] The abnormality identification module 6 is used to compare the detected voltage value, current value and temperature value with the preset value to determine whether they are abnormal, and send an abnormal signal to the ATSE terminal 3;

[0054] The alarm module 7 is used to generate an alarm signal and send it to the response module 8;

[0055] The response module 8 is used to emit a buzzer sound and turn on a flashing light to alert the staff according to the generated alarm signal;

[0056] The instruction receiving unit 9 is used to receive abnormal signals;

[0057] The automatic transfer switch unit 10 and the switching execution unit 11 are used to quickly switch to the backup power supply unit 13 for the main power supply to continue to use.

[0058] In this embodiment, the power status of the main power supply unit 12 is detected in real time through the intelligent detection terminal 1 and the abnormal monitoring terminal 2. If an abnormality occurs, the backup power supply unit 13 is switched through the ATSE terminal 3 to provide power to the main power supply unit 12. This design overcomes the problem of sudden power failure in the control unit and can automatically transfer the load to the backup power supply to continue operation, thereby solving the problem of sudden power failure in the pressure swing adsorption oxygen production control unit causing production losses and safety hazards to the enterprise. It can not only ensure the power supply continuity of the industrial oxygen production control unit, but also enhance the overall stability and safety of the pressure swing adsorption oxygen production system. In addition, its fully automatic and intelligent design makes maintenance and operation more convenient, reduces equipment maintenance costs and time, and effectively solves the obvious shortcomings in the traditional single power supply mode of the pressure swing adsorption oxygen production device. Once the main power fails, the oxygen production control logic control process system will be interrupted, causing losses to production and even safety hazards.

[0059] In this embodiment, when the power state of the main power supply unit 12 is stable, the main power supply unit 12 supplies power to the pressure swing adsorption oxygen generator alone; when the power state of the main power supply unit 12 becomes unstable, the ATSE terminal 3 switches to the backup power supply unit 13, and the pressure swing adsorption oxygen generator can be powered by dual power supplies. At the same time, the incoming line end of the main power supply end is connected to a lightning arrester, and its electrical symbol is KZ. The working principle of the lightning arrester is to protect the entire electronic equipment by limiting the transient overvoltage caused by lightning strikes and shunting excess current. Its function is to protect electrical equipment from the hazards of high transient overvoltage and large current, and at the same time, it can suppress the safe operation of equipment in harsh electrical environments.

[0060] Further, the detection module 4 includes a current sensor unit 14, a voltage sensor unit 15 and a temperature sensor unit 16, and the current sensor unit 14, the voltage sensor unit 15 and the temperature sensor unit 16 are all connected to the power supply terminal 29;

[0061] The current sensor unit 14 is used to detect the current of the main power supply unit 12;

[0062] The voltage sensor unit 15 is used to detect the voltage of the main power supply unit 12;

[0063] The temperature sensor unit 16 is used to detect the temperature of the main power supply unit 12 .

[0064] In this embodiment, the current sensor unit 14 is used to detect the current of the main power unit 12; the voltage sensor unit 15 is used to detect the voltage of the main power unit 12; and the temperature sensor unit 16 is used to detect the temperature of the main power unit 12.

[0065] Further, the data processing module 5 includes a data acquisition unit 17, a data processing unit 18, a data storage unit 19 and a data sending unit 20, and the data acquisition unit 17, the data processing unit 18, the data storage unit 19 and the data sending unit 20 are all connected to the power supply terminal 29;

[0066] The data acquisition unit 17 is used to collect the voltage value, current value and temperature value that need to be processed;

[0067] The data processing unit 18 is used to remove noise, filter and amplify the voltage value, current value and temperature value;

[0068] The data storage unit 19 is used to store the voltage value, current value and temperature value after denoising, filtering and amplification;

[0069] The data sending unit 20 is used to send the voltage value, current value and temperature value after denoising, filtering and amplification to the abnormality identification module 6.

[0070] In this embodiment, the detection value is collected by the data acquisition unit 17, and then the detection value is denoised, filtered and amplified by the data processing unit 18, and then the denoised, filtered and amplified detection value is saved by the data storage unit 19, and finally the detection value is sent to the abnormality identification module 6 by the data sending unit 20.

[0071] Further, the abnormality identification module 6 includes a feature extraction unit 21, a threshold setting unit 22, an abnormality monitoring algorithm unit 23 and an instruction sending unit 24, and the feature extraction unit 21, the threshold setting unit 22, the abnormality monitoring algorithm unit 23 and the instruction sending unit 24 are all connected to the intelligent detection terminal 1;

[0072] The feature extraction unit 21 is used to extract key values ​​among voltage values, current values ​​and temperature values;

[0073] The threshold setting unit 22 is used to set preset values ​​of voltage value, current value and temperature value;

[0074] The abnormality monitoring algorithm unit 23 is used to compare the key value with the preset value according to the algorithm to determine whether it is abnormal;

[0075] The instruction sending unit 24 is used to send an abnormal signal to the ATSE terminal 3 .

[0076] In this embodiment, the key value in the detection value is extracted by the feature extraction unit 21, and then the abnormality monitoring algorithm unit 23 compares the preset value and the key value according to the algorithm. If the key value exceeds the preset value, it is regarded as an abnormality and an abnormal signal is sent to the ATSE terminal 3.

[0077] Further, the alarm module 7 includes an alarm signal generating unit 25 and an alarm signal sending unit 26, and both the alarm signal generating unit 25 and the alarm signal sending unit 26 are connected to the intelligent detection terminal 1;

[0078] The alarm signal generating unit 25 is used to generate an alarm signal;

[0079] The data generated by the alarm signal transmitting unit 26 is transmitted to the staff.

[0080] In this embodiment, the alarm signal is generated into a transmittable signal, and the signal is transmitted to the staff.

[0081] Further, the response module 8 includes a buzzer unit 27 and a flashing light unit 28, and both the buzzer unit 27 and the flashing light unit 28 are connected to the intelligent detection terminal 1;

[0082] The buzzer unit 27 is used to emit a buzzer sound according to the generated alarm signal;

[0083] The flashing light unit 28 is used to turn on a flashing light according to the generated alarm signal.

[0084] In this embodiment, the buzzer unit 27 emits a buzzing sound to alert the staff, and the flashing light unit 28 turns on the flashing light to alert the staff.

[0085] Based on the present invention, please refer to Figure 8 The present invention also provides a dual power switching method for a pressure swing adsorption oxygen production control unit, which is applied to the dual power switching device for the pressure swing adsorption oxygen production control unit described above, and comprises the following steps:

[0086] S1: First, the detection module 4 detects the current value, voltage value and temperature value of the main power supply unit 12 in real time, and the data processing module 5 denoises, filters and amplifies the detected current value, voltage value and temperature value, and sends them to the abnormality identification module 6;

[0087] S2: The abnormality identification module 6 extracts the key value, compares the preset value with the key value, and if the key value exceeds the preset value, it is considered abnormal, and an abnormal signal is sent to the ATSE terminal 3, and then an alarm and response are issued;

[0088] S3: the instruction receiving unit 9 receives the abnormal signal, and controls the switching execution unit 11 to operate the automatic transfer switch unit 10, turns on the backup power supply unit 13, and then combines with the main power supply unit 12 to provide dual power supply for the pressure swing adsorption oxygen generator;

[0089] S4: The intelligent detection terminal 1 and the abnormality monitoring terminal 2 continuously detect the voltage value, current value and temperature value of the backup power supply unit 13.

[0090] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A dual power switching device for a pressure swing adsorption oxygen production control unit, characterized in that: It includes an intelligent detection end, an abnormality monitoring end, an ATSE end and a power supply end, wherein the intelligent detection end includes a detection module and a data processing module, the abnormality monitoring end includes an abnormality identification module, an alarm module and a response module, the ATSE end includes an instruction receiving unit, an automatic transfer switch unit and a switching execution unit, the power supply end includes a main power supply unit and a backup power supply unit, the intelligent detection end is connected to the power supply end, the abnormality monitoring end is connected to the intelligent detection end, and the ATSE end is connected to the abnormality monitoring end; The detection module is used to detect the voltage value, current value and temperature value of the main power supply unit; The data processing module is used to remove noise, filter and amplify the detected voltage value, current value and temperature value; The abnormality identification module is used to compare the detected voltage value, current value and temperature value with the preset value to determine whether they are abnormal, and send an abnormal signal to the ATSE end; The alarm module is used to generate an alarm signal and send it to the response module; The response module is used to emit a buzzer sound and turn on a flashing light to alert the staff according to the generated alarm signal; The instruction receiving unit is used to receive an abnormal signal; The automatic transfer switch unit and the switching execution unit are used to quickly switch to the backup power supply unit for continued use of the main power supply.

2. The dual power switching device for the pressure swing adsorption oxygen production control unit according to claim 1, characterized in that: The detection module comprises a current sensor unit, a voltage sensor unit and a temperature sensor unit, wherein the current sensor unit, the voltage sensor unit and the temperature sensor unit are all connected to the power supply end; The current sensor unit is used to detect the current of the main power supply unit; The voltage sensor unit is used to detect the voltage of the main power supply unit; The temperature sensor unit is used to detect the temperature of the main power supply unit.

3. The dual power supply switching device of the pressure swing adsorption oxygen production control unit according to claim 2, characterized in that: The data processing module includes a data acquisition unit, a data processing unit, a data storage unit and a data sending unit, and the data acquisition unit, the data processing unit, the data storage unit and the data sending unit are all connected to the power supply end; The data acquisition unit is used to collect the voltage value, current value and temperature value that need to be processed; The data processing unit is used to remove noise, filter and amplify the voltage value, current value and temperature value; The data storage unit is used to store the voltage value, current value and temperature value after denoising, filtering and amplification; The data sending unit is used to send the voltage value, current value and temperature value after denoising, filtering and amplification to the abnormality identification module.

4. The dual power switching device for the pressure swing adsorption oxygen production control unit according to claim 3, characterized in that: The abnormality identification module includes a feature extraction unit, a threshold setting unit, an abnormality monitoring algorithm unit and an instruction sending unit, and the feature extraction unit, the threshold setting unit, the abnormality monitoring algorithm unit and the instruction sending unit are all connected to the intelligent detection terminal; The feature extraction unit is used to extract key values ​​among voltage values, current values ​​and temperature values; The threshold setting unit is used to set preset values ​​of voltage value, current value and temperature value; The abnormality monitoring algorithm unit is used to compare the key value with the preset value according to the algorithm to determine whether it is abnormal; The instruction sending unit is used to send an abnormal signal to the ATSE end.

5. The dual power supply switching device of the pressure swing adsorption oxygen production control unit according to claim 4, characterized in that: The alarm module includes an alarm signal generating unit and an alarm signal sending unit, and both the alarm signal generating unit and the alarm signal sending unit are connected to the intelligent detection terminal; The alarm signal generating unit is used to generate an alarm signal; The data generated by the alarm signal transmitting unit is transmitted to a staff member.

6. The dual power supply switching device of the pressure swing adsorption oxygen production control unit according to claim 5, characterized in that: The response module includes a buzzer unit and a flashing light unit, and both the buzzer unit and the flashing light unit are connected to the intelligent detection end; The buzzer unit is used to emit a buzzing sound according to the generated alarm signal; The flashing light unit is used to turn on a flashing light according to the generated alarm signal.

7. A dual power switching method for a pressure swing adsorption oxygen production control unit, applied to a dual power switching device for a pressure swing adsorption oxygen production control unit as claimed in claim 6, characterized in that: The steps include: First, the detection module detects the current value, voltage value and temperature value of the main power supply unit in real time, and the data processing module denoises, filters and amplifies the detected current value, voltage value and temperature value, and sends them to the abnormality identification module; Secondly, the abnormality identification module extracts the key value, compares the preset value with the key value, and if the key value exceeds the preset value, it is considered abnormal, and an abnormal signal is sent to the ATSE end, and then an alarm and response are issued; At the same time, the instruction receiving unit receives the abnormal signal and controls the switching execution unit to operate the automatic transfer switch unit, turns on the backup power supply unit, and then combines with the main power supply unit to provide dual power supply for the pressure swing adsorption oxygen generator; Finally, the intelligent detection end and the abnormality monitoring end continuously detect the voltage value, current value and temperature value of the backup power supply unit.

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