Air separation nitrogen generation system based on Internet of Things

Abstract

The utility model discloses an air separation nitrogen generation system, which can acquire parameters such as pressure, flow or gas composition of each key node in real time through a data acquisition module, transmits the parameter data to a central controller through a communication module, and displays the parameter data on a data display module in real time through the central controller. The operation state of the air-separation nitrogen generation system can be visually displayed, the application of the communication module enables the air-separation nitrogen generation system to have a remote monitoring function, a user can conveniently know the working condition of the air-separation nitrogen generation system in time, meanwhile, the central controller is connected with valves of all key nodes, and therefore the working condition of the air-separation nitrogen generation system is improved. The valves can be switched to be opened or closed through the central controller, so that a user can manage and adjust the air separation nitrogen generation system in time, and the intelligence of the nitrogen production process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen production equipment, in particular to an air separation nitrogen production system based on the Internet of Things. Background Art

[0002] At present, since nitrogen production equipment is often installed in factories, it is necessary to manually monitor the pressure value in the compression tank in real time and control the start and stop of nitrogen production operations in a manually controlled manner, which is time-consuming and laborious. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an air separation nitrogen production system based on the Internet of Things, which can realize remote monitoring of the nitrogen production operation of the air separation nitrogen production system and facilitate timely adjustment of the nitrogen production operation.

[0004] In a first aspect, an embodiment of the utility model provides an air separation nitrogen production system based on the Internet of Things, including:

[0005] A nitrogen production device, including a nitrogen generator, a first nitrogen buffer tank, a deoxidizer, a dryer, and a second nitrogen buffer tank connected in sequence through pipelines. The deoxidizer is provided with a hydrogen injection port for hydrogen input; a first valve is arranged on the pipeline between the nitrogen generator and the first nitrogen buffer tank, a second valve is arranged on the pipeline between the first nitrogen buffer tank and the deoxidizer, a third valve is also arranged at the hydrogen injection port, and a fourth valve is arranged on the pipeline between the dryer and the second nitrogen buffer tank;

[0006] A data acquisition module, including a first pressure sensor and a first flowmeter arranged at the output port of the first nitrogen buffer tank, a second pressure sensor and a second flowmeter arranged at the hydrogen injection port, a first gas analyzer and a third pressure sensor arranged at the output port of the dryer, and a fourth pressure sensor arranged at the output port of the second nitrogen buffer tank;

[0007] A data monitoring module, including a communication module, a data display module, and a central controller. The central controller is connected to the data display module; the central controller is also respectively connected to the first pressure sensor, the second pressure sensor, the first flowmeter, the third pressure sensor, the second flowmeter, the first gas analyzer, and the fourth pressure sensor through the communication module; the central controller is also respectively connected to the first valve, the second valve, the third valve, and the fourth valve.

[0008] The air separation nitrogen generation system provided by the embodiment of the present utility model has at least the following beneficial effects: Through the data acquisition module, parameters such as pressure, flow rate, or gas composition of each key node can be obtained in real time, and these parameter data are transmitted to the central controller through the communication module, and then these parameter data are displayed on the data display module in real time through the central controller, which can intuitively display the operating state of the air separation nitrogen generation system. The application of the communication module enables the air separation nitrogen generation system to have a remote monitoring function, facilitating users to timely understand the working conditions of the air separation nitrogen generation system. At the same time, the central controller is respectively connected to the valves of each key node, and the central controller can respectively switch each valve to open or close. By cooperating with each other among the nitrogen generation equipment, data acquisition module, and data monitoring module, an Internet of Things system is constructed, which helps users to timely manage and adjust the air separation nitrogen generation system and improve the intelligence of the nitrogen production process.

[0009] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the data acquisition module further includes a second gas analyzer arranged at the output port of the first nitrogen buffer tank, and the second gas analyzer is connected to the central controller through the communication module.

[0010] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the data acquisition module further includes a temperature and humidity sensor and a third flowmeter arranged at the output port of the dryer, and the temperature and humidity sensor and the third flowmeter are respectively connected to the central controller through the communication module.

[0011] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the data acquisition module further includes a fifth pressure sensor arranged in the second nitrogen buffer tank, and the fifth pressure sensor is connected to the central controller through the communication module.

[0012] In the air separation nitrogen generation system provided by the embodiment of the present utility model, a heater is arranged between the first nitrogen buffer tank and the deoxidizer, and the data acquisition module further includes a first temperature sensor arranged in the heater, and the first temperature sensor is connected to the central controller through the communication module.

[0013] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the nitrogen generation equipment further includes an air buffer tank, the output port of the air buffer tank is connected to the input port of the nitrogen generator through a pipeline, and the data acquisition module further includes a sixth pressure sensor arranged at the output port of the air buffer tank, and the sixth pressure sensor is connected to the central controller through the communication module.

[0014] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the data acquisition module further includes a second temperature sensor disposed in the desiccant dryer, and the second temperature sensor is connected to the central controller through the communication module.

[0015] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the data acquisition module further includes a video collector for shooting the operating conditions of the nitrogen generation equipment, and the video collector is connected to the data display module through the communication module.

[0016] In the air separation nitrogen generation system provided by the embodiment of the present utility model, the nitrogen generator, the desiccant dryer, and the first nitrogen buffer tank are all provided with vent exhaust ports, and all the vent exhaust ports are provided with switch valves, and the switch valves are connected to the central controller.

[0017] In the air separation nitrogen generation system provided by the embodiment of the present utility model, it further includes prompting devices respectively disposed on the outer sides of the nitrogen generator, the first nitrogen buffer tank, the deoxidizer, the desiccant dryer, and the second nitrogen buffer tank, and the prompting devices are connected to the central controller.

[0018] Other features and advantages of the present utility model will be described in the subsequent specification, and, in part, will be obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structures specifically pointed out in the specification, the claims, and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the technical solutions of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the technical solutions of the present utility model, and do not constitute a limitation to the technical solutions of the present utility model.

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0021] Figure 1 It is a schematic circuit structure diagram of the air separation nitrogen generation system provided by the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation to the protection scope of the present utility model.

[0023] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is more than two, understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, understandings such as "above", "below", "within", etc. include the present number, "any one" means one or more, "at least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] It should be noted that words such as "set", "installed", "connected", etc. in the embodiments of the present utility model should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the embodiments of the present utility model in combination with the specific content of the technical solution. For example, the term "connected" can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium.

[0025] It should be noted that the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Currently, since nitrogen production equipment is often installed in a factory, it is necessary to manually monitor the operating parameter values of a large number of key nodes such as compression tanks and pipelines in real time to timely pay attention to the nitrogen production operation and control the start and stop of the nitrogen production operation, which is time-consuming and laborious.

[0027] Based on this, the embodiments of the present utility model propose an air separation nitrogen production system based on the Internet of Things. Through the data acquisition module, parameters such as pressure, flow rate or gas composition of each key node can be obtained in real time, and these parameter data are transmitted to the central controller through the communication module, and then these parameter data are displayed on the data display module in real time through the central controller, which can intuitively display the operating state of the air separation nitrogen production system. The application of the communication module can enable the air separation nitrogen production system to have a remote monitoring function, which is convenient for users to timely understand the working conditions of the air separation nitrogen production system. At the same time, the central controller is respectively connected to the valves of each key node, and the central controller can respectively switch the opening or closing of each valve, thereby helping users to timely manage and adjust the air separation nitrogen production system and improve the intelligence of the nitrogen production process.

[0028] The following further elaborates on the embodiments of the present utility model in conjunction with the accompanying drawings.

[0029] Refer to Figure 1 , Figure 1It is a schematic structural diagram of the air separation nitrogen generation system provided by the embodiments of the present utility model. It can be understood that the air separation nitrogen generation system includes a nitrogen generation equipment, a data acquisition module, and a data monitoring module. Among them, the nitrogen generation equipment includes a nitrogen generator, a first nitrogen buffer tank, a deoxidizer, a dryer, and a second nitrogen buffer tank; the nitrogen generator can be a double-tower nitrogen generator, and the nitrogen generator can include an adsorption tower and a desorption tower. The inside of the adsorption tower adsorbs oxygen in the air by filling adsorbents. When air passes through the adsorption tower, oxygen molecules will be adsorbed on the adsorbents, while nitrogen flows out through the adsorption tower, realizing the separation of oxygen and nitrogen; and the desorption tower is used to desorb the oxygen on the adsorbents, so that the oxygen is released back into the air again. When the adsorbents in the adsorption tower are saturated, a desorption operation is required to restore the adsorption capacity of the adsorbents in the adsorption tower. At this time, the desorption tower can release the oxygen on the adsorbents by means such as heating or depressurization. By alternately working the adsorption tower and the desorption tower, the nitrogen generator can continuously produce nitrogen. The output port of the nitrogen generator is connected to the first nitrogen buffer tank through a pipeline. The first nitrogen buffer tank can store the nitrogen generated by the nitrogen generator, playing a role in buffering and stabilizing the nitrogen supply, and at the same time can balance the pressure fluctuation to ensure the stable operation of the subsequent equipment. And a first valve is provided on the pipeline between the nitrogen generator and the first nitrogen buffer tank. When the first valve is opened, the nitrogen generated by the nitrogen generator can be transported to the first nitrogen buffer tank; when the first valve is closed, the nitrogen generator and the first nitrogen buffer tank are not connected, avoiding the backflow of the nitrogen in the nitrogen buffer tank when the nitrogen generator stops working. Among them, the output port of the first nitrogen buffer tank is connected to the deoxidizer through a pipeline. The deoxidizer is also provided with a hydrogen injection port for hydrogen input. By using the reaction of hydrogen with the residual oxygen in nitrogen to generate water, the oxygen in nitrogen can be further removed through the deoxidizer. Among them, a second valve is provided on the pipeline between the first nitrogen buffer tank and the deoxidizer. When the second valve is opened, the nitrogen in the first nitrogen buffer tank can be transported into the deoxidizer for deoxidation, and when the second valve is closed, the gas cannot flow between the first nitrogen buffer tank and the deoxidizer, thus avoiding the backflow of the gas into the first nitrogen buffer tank after the deoxidizer injects hydrogen; and a third valve is provided at the hydrogen injection port. When the third valve is opened, hydrogen can be input into the deoxidizer through the hydrogen injection port to deoxidize nitrogen. When the third valve is closed, it can avoid the leakage of gas from the hydrogen injection port.

[0030] It should be noted that a heater is also provided between the first nitrogen buffer tank and the deoxidizer. The heater can heat the nitrogen transported from the first nitrogen buffer tank to the deoxidizer, which helps to remove the residual oxygen in nitrogen in the deoxidizer and improve the purity of nitrogen.

[0031] The dryer can be a dual-tower dryer, including a first adsorption tower and a second adsorption tower. The adsorbent filled inside the adsorption tower can adsorb water molecules in the gas to dry the gas. The functions of the first adsorption tower and the second adsorption tower are the same. After the adsorbent in one of the adsorption towers reaches the saturation state, the adsorption tower needs to be regenerated, that is, the water is removed from the adsorbent. At this time, the dryer will input the externally supplied gas into the other adsorption tower for gas drying. In this way, continuous drying is achieved through the alternating operation of the two parallel adsorption towers. The deoxidizer transports the deoxidized nitrogen to the dryer. The working adsorption tower can remove water vapor and other trace impurities in the nitrogen, further improving the purity and dryness of the nitrogen. The purified nitrogen can be transported from the dryer to the second nitrogen buffer tank for storage. Correspondingly, it can play a role in buffering and stabilizing the output, helping to provide a stable nitrogen output pressure and flow rate to ensure stable gas supply at the user end. Among them, a fourth valve is provided in the pipeline between the dryer and the second nitrogen buffer tank. When the fourth valve is opened, the dryer can transport the dried nitrogen to the second nitrogen buffer tank for storage. When the fourth valve is closed, the nitrogen in the second nitrogen buffer tank cannot flow back to the dryer.

[0032] It should be noted that a cooler is also provided between the deoxidizer and the dryer. Since the deoxidation reaction is likely to cause a temperature rise, in order to protect the subsequent equipment and ensure the processing efficiency, the deoxidized nitrogen is cooled by the cooler so that the temperature of the nitrogen input into the dryer meets the processing temperature range.

[0033] It should be noted that the nitrogen production equipment also includes an air buffer tank. The air buffer tank can store compressed air for nitrogen production. The output port of the air buffer tank can be connected to the input port of the nitrogen generator through a pipeline, so as to provide a stable air flow and pressure for the nitrogen generator, improving the efficiency and reliability of the nitrogen generator.

[0034] It is understandable that the data acquisition module includes a pressure sensor, a flowmeter, a gas analyzer, etc. for measuring the parameters of the air separation nitrogen production system during the nitrogen production operation. Specifically, a first pressure sensor and a first flowmeter can be provided at the output port of the first nitrogen buffer tank, so as to measure the gas pressure and gas flow in the pipeline between the first nitrogen buffer tank and the deoxidizer. Furthermore, it is convenient to intuitively judge whether the gas supply pressure between the first nitrogen buffer tank and the deoxidizer is within a suitable range, and at the same time, it is convenient for the user to judge whether the gas supply volume of the first nitrogen buffer tank is stable, which helps the user to adjust in time and ensure the normal operation of the deoxidation process. A second pressure sensor and a second flowmeter are also provided at the hydrogen injection port of the deoxidizer. The second pressure sensor can detect the hydrogen pressure injected into the deoxidizer, and the second flowmeter can detect the hydrogen flow injected into the deoxidizer, which is convenient for the user to judge whether the hydrogen supply is stable and control the hydrogen injection volume to ensure the deoxidation reaction efficiency. A first gas analyzer and a third pressure sensor are also provided at the output port of the dryer. The first gas analyzer can analyze the composition and purity of the gas output by the dryer, which helps the user to judge whether the quality of the produced nitrogen meets the requirements; while the third pressure sensor can detect the gas pressure at the outlet of the dryer, which is convenient for the user to intuitively understand the pressure parameter and adjust the nitrogen production operation in time to avoid equipment failure or efficiency reduction caused by pressure fluctuations. In addition, a fourth pressure sensor is also provided at the output port of the second nitrogen buffer tank. The fourth pressure sensor can detect the nitrogen output pressure of the second nitrogen buffer tank, which helps the user to understand whether there is a suitable pressure for supplying nitrogen to downstream equipment.

[0035] Each sensor in the data acquisition module is respectively arranged at different nodes, and can measure the key parameters at different nodes, jointly constructing an efficient and reliable monitoring network, which helps to provide a stable operating environment for the nitrogen production operation. These measured data can not only be used for real-time monitoring, but also be transmitted to the central controller through the communication module, which is convenient for the central controller to perform subsequent automated and intelligent management on these measured data, thereby helping to improve the operating efficiency and safety of the air separation nitrogen production system and ensuring the quality of nitrogen products.

[0036] It can be understood that the air separation nitrogen generation system further includes a data monitoring module, and the data monitoring module includes a communication module, a data display module and a central controller. There can be multiple communication modules, and each sensor in the data acquisition module can be correspondingly connected to a communication module one by one. That is, the first pressure sensor, the second pressure sensor, the first flowmeter, the third pressure sensor, the second flowmeter, the first gas analyzer and the fourth pressure sensor can be respectively connected to the communication module one by one. Therefore, the communication module can transmit the real-time data collected by each data acquisition module to the central controller, and the remote monitoring function is realized by using the communication module, which is convenient for users to obtain the real-time data and status information of the air separation nitrogen generation system during the nitrogen generation operation from a remote location. The central controller can collect various real-time data measured by the data acquisition module through the communication module and transmit them to the data display module for display. The data display module can display the data transmitted by the central controller in real time, including key data such as pressure, flow rate and gas composition collected by the data acquisition module. The data display module provides an intuitive display of the system operation status for users, facilitating user monitoring and management. At the same time, the data display module can be used to display historical data and operation data trends, which helps users optimize the system and monitor its performance.

[0037] The central controller is also respectively connected to each valve and can be used to switch each valve to open or closed. Specifically, the central controller can respectively switch the first valve, the second valve, the third valve and the fourth valve to the open state or the closed state, so as to facilitate the user to remotely adjust the operation state of the air separation nitrogen generation system through the central controller.

[0038] Therefore, through the data acquisition module, parameters such as pressure, flow rate or gas composition of each key node can be obtained in real time, and these parameter data are transmitted to the central controller through the communication module, and then the central controller displays these parameter data in real time on the data display module, which can intuitively display the operation state of the air separation nitrogen generation system. The application of the communication module enables the air separation nitrogen generation system to have the remote monitoring function. By cooperating with each other among the nitrogen generation equipment, the data acquisition module and the data monitoring module, an Internet of Things system is constructed, which is convenient for users to timely understand the working conditions of the air separation nitrogen generation system. At the same time, the central controller is respectively connected to the valves of each key node, and each valve can be respectively switched to open or closed through the central controller, which helps users to timely manage and adjust the air separation nitrogen generation system and improve the intelligence of the nitrogen production process.

[0039] It can be understood that a second gas analyzer is also provided at the output port of the first nitrogen buffer tank. The second gas analyzer can detect the purity and composition of the nitrogen output from the first nitrogen buffer tank. At the same time, the second gas analyzer can be connected to the central controller through the communication module. Therefore, the nitrogen purity at the output port of the first nitrogen buffer tank can be displayed in the data display module, which helps to judge the quality of the nitrogen production so as to adjust the hydrogen injection amount for deoxidation.

[0040] It can be understood that a temperature and humidity sensor and a third flowmeter are also provided at the output port of the dryer. The temperature and humidity sensor and the third flowmeter are respectively connected to the central controller through the communication module. Therefore, the data measured by the temperature and humidity sensor and the third flowmeter can be displayed in the data display module. The temperature and humidity sensor can detect the temperature and humidity of the nitrogen output from the dryer, so as to facilitate the calculation of the dew point temperature of the pipeline for transporting nitrogen, and then facilitate the user to adjust the operating state of the dryer in time to prevent the condensation of nitrogen during transportation and improve the drying efficiency. The third flowmeter can measure the flow rate of the nitrogen output from the dryer, which is convenient for the user to monitor the discharge balance of the air separation nitrogen generation system and timely detect whether there is a blockage or leakage problem in the air separation nitrogen generation system, which helps the user to adjust the production plan and the equipment operating state in time and improve the overall resource utilization rate and production efficiency.

[0041] It can be understood that a fifth pressure sensor is also provided in the second nitrogen buffer tank. The fifth pressure sensor can measure the in-tank pressure data in the second nitrogen buffer tank in real time to ensure whether the output nitrogen pressure is stable within a safe range, which helps to maintain the pressure balance of the air separation nitrogen generation system. Among them, the fifth pressure sensor is also connected to the central controller through the communication module. Therefore, the in-tank pressure data measured by the fifth pressure sensor in the second nitrogen buffer tank can also be displayed on the data display module.

[0042] It can be understood that a first temperature sensor is also provided in the heater. The first temperature sensor can be connected to the central controller through the communication module. Therefore, the temperature data measured by the first temperature sensor can be displayed in the data display module. The first temperature sensor can measure the temperature of the nitrogen in the heater, which is convenient for the user to understand the nitrogen temperature in real time and avoid overheating or underheating of the heater, which affects the nitrogen production efficiency.

[0043] It can be understood that a sixth pressure sensor is also provided at the output port of the air buffer tank. The sixth pressure sensor can measure the real-time pressure data of the gas output from the air buffer tank to ensure the stability of the air pressure input to the nitrogen generator. The sixth pressure sensor is connected to the central controller through the communication module, which is convenient for the user to understand the air supply pressure in real time from the data display module and helps the user to optimize the air supply strategy and improve the nitrogen production efficiency of the system.

[0044] It can be understood that a second temperature sensor is also provided inside the desiccant dryer. The second temperature sensor can measure the temperature inside the desiccant dryer in real time, determine whether the operating temperature of the desiccant is within the appropriate range, and assist in adjusting the operation of the heater and cooler to improve the desiccant efficiency. Correspondingly, the second temperature sensor is also connected to the central controller through the communication module. Therefore, the temperature inside the desiccant dryer measured by the second temperature sensor can also be displayed on the data display module.

[0045] It can be understood that the data acquisition module further includes a video collector. The video collector can capture the operating conditions of the nitrogen generation equipment in real time, including the operating conditions of the air buffer tank, nitrogen generator, first nitrogen buffer tank, deoxidizer, heater, cooler, desiccant dryer, and second nitrogen buffer tank, etc. The video collector is connected to the central controller through the communication module. Therefore, the operating conditions of the nitrogen generation equipment captured by the video collector in real time can be projected onto the data display module in real time, providing visual feedback to the user and facilitating the user to remotely monitor the operating status of the nitrogen generation equipment.

[0046] It can be understood that vent outlets are provided on the nitrogen generator, desiccant dryer, and first nitrogen buffer tank, and a switch valve is provided at each vent outlet. The switch valve is connected to the central controller. Therefore, it is possible to remotely control the nitrogen generator, desiccant dryer, or first nitrogen buffer tank to perform venting to facilitate adjusting the pressure inside the equipment and ensuring safe operation.

[0047] It can be understood that reminder devices are provided on the outer sides of equipment such as the nitrogen generator, first nitrogen buffer tank, deoxidizer, desiccant dryer, and second nitrogen buffer tank. The reminder device can be an audible and visual reminder device. The reminder device is connected to the central controller. Therefore, it is possible for the user to remotely control the corresponding reminder device to turn on and issue a reminder to indicate that the equipment has an abnormality, facilitating the maintenance personnel to check in a timely manner. Through the newly added pressure sensor, temperature sensor, video collector, and reminder device, the monitoring, control, safety protection, and data acquisition capabilities of the air separation nitrogen generation system have been effectively improved, reaching a higher level of intelligence and automation.

[0048] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. An air separation nitrogen generation system based on the Internet of Things, characterized in that, Comprising: A nitrogen generation device, including a nitrogen generator, a first nitrogen buffer tank, a deoxidizer, a dryer, and a second nitrogen buffer tank connected in sequence through pipelines. The deoxidizer is provided with a hydrogen injection port for hydrogen input; a first valve is provided in the pipeline between the nitrogen generator and the first nitrogen buffer tank, a second valve is provided in the pipeline between the first nitrogen buffer tank and the deoxidizer, a third valve is also provided at the hydrogen injection port, and a fourth valve is provided in the pipeline between the dryer and the second nitrogen buffer tank; A data acquisition module, including a first pressure sensor and a first flowmeter provided at the output port of the first nitrogen buffer tank, a second pressure sensor and a second flowmeter provided at the hydrogen injection port, a first gas analyzer and a third pressure sensor provided at the output port of the dryer, and a fourth pressure sensor provided at the output port of the second nitrogen buffer tank; A data monitoring module, including a communication module, a data display module, and a central controller. The central controller is connected to the data display module; the central controller is also respectively connected to the first pressure sensor, the second pressure sensor, the first flowmeter, the third pressure sensor, the second flowmeter, the first gas analyzer, and the fourth pressure sensor through the communication module; the central controller is also respectively connected to the first valve, the second valve, the third valve, and the fourth valve.

2. The air separation nitrogen production system according to claim 1, wherein The data acquisition module further includes a second gas analyzer provided at the output port of the first nitrogen buffer tank, and the second gas analyzer is connected to the central controller through the communication module.

3. The air separation nitrogen generation system according to claim 1, characterized in that, The data acquisition module further includes a temperature and humidity sensor and a third flowmeter provided at the output port of the dryer, and the temperature and humidity sensor and the third flowmeter are respectively connected to the central controller through the communication module.

4. The air separation nitrogen generation system according to claim 1, characterized in that The data acquisition module further includes a fifth pressure sensor provided inside the second nitrogen buffer tank, and the fifth pressure sensor is connected to the central controller through the communication module.

5. The air separation nitrogen generation system according to claim 1, wherein A heater is provided between the first nitrogen buffer tank and the deoxidizer, and the data acquisition module further includes a first temperature sensor provided inside the heater, and the first temperature sensor is connected to the central controller through the communication module.

6. The air separation nitrogen generation system according to claim 1, characterized in that, The nitrogen generation device further includes an air buffer tank, the output port of the air buffer tank is connected to the input port of the nitrogen generator through a pipeline, and the data acquisition module further includes a sixth pressure sensor provided at the output port of the air buffer tank, and the sixth pressure sensor is connected to the central controller through the communication module.

7. The air separation nitrogen generation system according to claim 1, wherein The data acquisition module further includes a second temperature sensor provided inside the dryer, and the second temperature sensor is connected to the central controller through the communication module.

8. The air separation nitrogen generation system according to claim 1, wherein, The data acquisition module further includes a video collector for shooting the operating conditions of the nitrogen generation device, and the video collector is connected to the data display module through the communication module.

9. The air separation nitrogen generation system according to claim 1, wherein The nitrogen generator, the dryer, and the first nitrogen buffer tank are all provided with vent exhaust ports, and all the vent exhaust ports are provided with switch valves, and the switch valves are connected to the central controller.

10. The air separation nitrogen generation system according to claim 1, wherein It further includes prompting devices respectively arranged on the outer sides of the nitrogen generator, the first nitrogen buffer tank, the deoxidizer, the dryer, and the second nitrogen buffer tank, and the prompting devices are connected to the central controller.

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