Heavy industry atmosphere greenhouse gas monitoring device

Abstract

The invention discloses a heavy industry atmospheric greenhouse gas monitoring device, which belongs to the technical field of environmental governance, and comprises a shell, and an absorption cell, a reference cell, a composite narrow light source generation device, a beam splitter prism and two high-precision sensor arrays which are arranged in the shell, the composite narrow light source generating device is arranged at one end of the absorption cell and one end of the reference cell, and the two high-precision sensor arrays are respectively arranged at the other end of the absorption cell and the other end of the reference cell; the beam splitter prism is arranged among the composite narrow light source generation device, the absorption cell and the reference cell; to-be-detected sample gas is introduced into the absorption cell; the composite narrow light source generating device emits light; the beam splitter prism splits the emitted light into two beams of light with the same intensity; the two beams of light respectively pass through an absorption cell and a reference cell and are received by high-precision sensor arrays at the end parts of the absorption cell and the reference cell; and according to the original intensity of the emitted light and the absorbed light intensity, calculating the concentration of the sample gas by utilizing the Lambert-Beer law. The method has the advantages of improving the monitoring precision, reducing the maintenance cost, improving the durability and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental governance and relates to a gas monitoring device, in particular to a heavy industry atmospheric greenhouse gas monitoring device. Background Art

[0002] Existing greenhouse gas monitoring technologies are widely used in many fields such as environmental monitoring, industrial production, urban planning and transportation construction. These technologies can collect environmental data including carbon monoxide, carbon dioxide, methane, etc. in real time by integrating various sensors and monitoring units, and transmit the data to the processing platform through wireless communication technology. In terms of data processing, advanced technologies such as edge computing, data filtering, encryption packaging and data mining are used to improve the efficiency and accuracy of data processing. In addition, the monitoring system is usually equipped with a visual user interface, which makes it easy for users to intuitively understand the monitoring data and analysis results. At the same time, it has an early warning function and can respond to environmental risks in a timely manner.

[0003] Although existing technologies have made some progress in greenhouse gas monitoring, there are still some limitations. For example, monitoring accuracy may be affected under conditions of high humidity or unstable airflow. In addition, some monitoring equipment has high maintenance costs and is easily damaged under certain circumstances, affecting its stability and service life. In terms of data representativeness, traditional timed online sampling monitoring may not be able to reflect changes in emissions in a timely manner, resulting in insufficient representativeness of monitoring results. In addition, some systems need to be improved in terms of real-time monitoring and portability to adapt to rapidly changing monitoring needs.

[0004] To overcome these problems, greenhouse gas monitoring technology is developing towards higher accuracy, lower maintenance costs, stronger environmental adaptability, higher real-time and portability. For example, by adopting improved algorithms and hardware designs, the stability and durability of monitoring equipment in harsh environments can be improved. At the same time, by optimizing the data processing process, the efficiency and accuracy of data processing can be improved to ensure that the monitoring results can truly reflect the environmental conditions. In addition, a more intelligent and integrated monitoring platform is developed to achieve wider applications and more efficient environmental management. Summary of the invention

[0005] The present invention provides a heavy industry atmospheric greenhouse gas monitoring device to overcome the defects of the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A heavy industry atmospheric greenhouse gas monitoring device comprises a shell and an absorption cell, a reference cell, a composite narrow light source generating device, a spectroscopic prism and two high-precision sensor arrays arranged in the shell; the composite narrow light source generating device is arranged at one end of the absorption cell and the reference cell, and the two high-precision sensor arrays are respectively arranged at the other end of the absorption cell and the reference cell; the spectroscopic prism is arranged between the composite narrow light source generating device and the absorption cell and the reference cell; the sample gas to be measured is passed into the absorption cell; the composite narrow light source generating device emits light; the spectroscopic prism divides the emitted light into two beams of light with the same intensity; the two beams of light pass through the absorption cell and the reference cell respectively, and are received by the high-precision sensor arrays at the ends thereof; the concentration of the sample gas is calculated according to the original intensity of the emitted light and the light intensity after absorption using the Lambert-Beer law.

[0008] To optimize the above technical solutions, the specific measures taken also include:

[0009] Furthermore, the absorption cell has an end close to the composite narrow light source generating device connected to an air inlet pipe, and an end close to the high-precision sensor array connected to an air outlet pipe; a pump is provided on the air outlet pipe, and the sample gas flows through the absorption cell through the pump.

[0010] Furthermore, a gas dryer is provided on the air inlet pipe, and the gas dryer removes water vapor in the sample gas flowing therethrough.

[0011] Furthermore, a cyclone cutting air intake device is provided at the air intake end of the air intake pipe.

[0012] Furthermore, it also includes a data processing and transmission unit; the high-precision sensor array is connected to the data processing and transmission unit through optical fiber, and the data is transmitted to the data processing and transmission unit, and the data processing and transmission unit calculates the concentration of the sample gas according to the data.

[0013] Furthermore, it also includes a display unit; the data processing and transmission unit sends the calculation results to the display unit, and displays them visually through the display unit.

[0014] Furthermore, the absorption cell and the reference cell have the same shape and size; the absorption cell and the reference cell are arranged in parallel.

[0015] Furthermore, the shell is made of corrosion-resistant material.

[0016] The beneficial effects of the present invention are:

[0017] 1. Improve monitoring accuracy: The present invention uses sensor technology and optimized data processing algorithms to significantly improve monitoring accuracy under harsh conditions such as high humidity and unstable airflow. Compared with existing technologies, the measurement error is reduced by about 25-30%, ensuring more accurate and reliable greenhouse gas data in complex heavy industrial environments.

[0018] 2. Reduce maintenance costs and improve durability: Through protective design and the use of corrosion-resistant materials, the device has greatly improved its stability and durability in harsh environments. The maintenance cycle is extended from monthly to quarterly, and the annual maintenance cost is reduced by about 40-50%.

[0019] 3. Enhanced environmental adaptability: The present invention adopts a full range of environmental adaptability design, including dustproof, waterproof, shockproof and wide temperature range adaptability. Tests show that the device can work stably in the temperature range of -30℃ to 55℃, and is suitable for various harsh heavy industrial environments.

[0020] 4. Improve real-time performance and data representativeness: By adopting edge computing technology and optimized data collection strategies, this device achieves near real-time data collection and processing. The sampling frequency is increased from the traditional several times per hour to multiple times per minute, which greatly improves the temporal resolution of the data and can reflect the dynamic changes of emissions more timely and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of a heavy industry atmospheric greenhouse gas monitoring device;

[0022] 1. Shell; 21. Absorption cell; 22. Reference cell; 3. Composite narrow light source generating device; 4. Spectral prism; 5. High-precision sensor array; 61. Air inlet pipe; 62. Air outlet pipe; 63. Pump; 7. Gas dryer; 8. Cyclone cutting air inlet device; 91. Data processing and transmission unit; 92. Display unit. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the present invention provides a heavy industrial atmospheric greenhouse gas monitoring device, comprising a housing 1, an absorption cell 21, a reference cell 22, a composite narrow light source generating device 3, a beam splitter prism 4 and two high-precision sensor arrays 5. The absorption cell 21, the reference cell 22, the composite narrow light source generating device 3, the beam splitter prism 4 and the two high-precision sensor arrays 5 are all installed in the housing 1.

[0025] The composite narrow light source generating device 3 is arranged at one end of the absorption cell 21 and the reference cell 22, and two high-precision sensor arrays 5 are respectively arranged at the other end of the absorption cell 21 and the reference cell 22. The spectroscopic prism 4 is arranged between the composite narrow light source generating device 3 and the absorption cell 21 and the reference cell 22. The sample gas to be measured is passed into the absorption cell 21. The composite narrow light source generating device 3 emits light. The spectroscopic prism 4 divides the emitted light into two beams of light with the same intensity. The two beams of light pass through the absorption cell 21 and the reference cell 22 respectively, and are received by the high-precision sensor array 5 at their ends. According to the original intensity of the emitted light and the intensity of the light after absorption, the concentration of the sample gas is calculated using the Lambert-Beer law.

[0026] The absorption cell 21 and the reference cell 22 have the same shape and size, and the absorption cell 21 and the reference cell 22 are arranged in parallel, so that the monitoring result is more accurate.

[0027] The shell 1 wraps the entire device to provide protection against dust and water, and is made of corrosion-resistant material.

[0028] In a specific embodiment, the end of the absorption pool 21 close to the composite narrow light source generating device 3 is connected to an air inlet pipe 61, and the end close to the high-precision sensor array 5 is connected to an air outlet pipe 62. A pump 63 is provided on the air outlet pipe 62 for pumping the air path so that the sample gas flows through the absorption pool 21 continuously.

[0029] In a preferred embodiment, a gas dryer 7 is provided on the air inlet pipe 61, and the gas dryer 7 removes water vapor in the sample gas flowing therethrough.

[0030] A cyclone cutting air intake device 8 is provided at the air intake end of the air intake pipe 61 .

[0031] The device also includes a data processing and transmission unit 91 and a display unit 92. The high-precision sensor array 5 is connected to the data processing and transmission unit 91 through an optical fiber, and transmits data to the data processing and transmission unit 91. The data processing and transmission unit 91 calculates the concentration of the sample gas based on the data. The data processing and transmission unit 91 sends the calculation result to the display unit 92, and displays it visually through the display unit 92.

[0032] The working principle of the heavy industry atmospheric greenhouse gas monitoring device of the present invention is as follows: first, after the sample gas passes through the gas dryer 7 to remove the moisture in the sample gas, the sample gas is introduced into the absorption cell 21 with a fixed optical path. The sample gas in the absorption cell 21 presents a laminar flow state. Then, the generating device-composite narrow light source generating device 3 installed at both ends of the housing 1 is used. This device will generate light of a specific wavelength, and then the generated light is divided into two beams by the beam splitter prism 4, one of which is absorbed by the sample gas in the absorption cell 21 and reaches the other end of the absorption cell 21 to be collected by the high-precision sensor array 5; the other light passes through the reference cell 22 and is collected by the high-precision sensor array 5 installed at the end of the reference cell 22 to monitor the state of the light source at all times. The measurement of the device utilizes the absorption characteristics of different greenhouse gases for characteristic wavelength light, mainly utilizing the absorption of light by carbon monoxide at 4.7μm, carbon dioxide at 15μm, and methane at 7.7μm. Finally, the data processing and transmission unit 91 processes the data using the Beer-Lambert law, and the processed data is displayed on the display unit 92 in the form of an intuitive chart. At the same time, the device will perform real-time monitoring according to the preset threshold value, and once an abnormal situation is found, the early warning mechanism will be triggered immediately.

[0033] The working process of the heavy industry atmospheric greenhouse gas monitoring device of the present invention is as follows:

[0034] In the first step, after the sample gas passes through the sampling port, the moisture in the sample gas is removed through the semi-permeable membrane;

[0035] The second step is to use the composite narrow light source generating device 3 and the beam splitter prism 4 to generate two beams of light of equal intensity; one beam of light passes through the reference cell 22, and the original light intensity is recorded by the high-precision sensor array 5; the other beam of light passes through the absorption cell 21, and after being absorbed by the greenhouse gas therein, the light intensity is collected and recorded by the high-precision sensor array 5.

[0036] Step 3: The data processing and transmission unit 91 processes and calculates the concentrations of various greenhouse gases based on the Lambert-Beer law, and displays them on the display unit 92 in the form of a chart.

[0037] Step 4: Carry out real-time monitoring according to the threshold set by the device, and immediately trigger the early warning mechanism once an abnormal situation is found.

[0038] The device of the present invention improves monitoring accuracy and environmental adaptability. In view of complex conditions such as high humidity and unstable airflow in heavy industrial environments, the device adopts improved sensor technology and fluid design to ensure high-precision monitoring in harsh environments. At the same time, by optimizing the hardware structure and material selection, the durability and stability of the device are significantly improved, so that it can operate reliably in harsh industrial environments for a long time, effectively reducing maintenance costs and frequency. In addition, the present invention focuses on improving the real-time and representativeness of data. By optimizing the data acquisition frequency and sampling method, combined with advanced edge computing and data processing technologies, rapid and accurate monitoring of greenhouse gas emissions can be achieved. This can not only reflect the dynamic changes in emissions in a timely manner, but also provide more representative monitoring results. At the same time, the device integrates an intelligent early warning system and an intuitive data visualization interface, allowing users to promptly discover potential environmental risks and easily understand and analyze complex monitoring data, thereby supporting more efficient environmental management decisions.

[0039] In the present invention, unless otherwise specified, the scientific and technical terms used herein have the meanings commonly understood by those skilled in the art. In addition, the reagents, materials and operating procedures used herein are reagents, materials and conventional procedures widely used in the corresponding fields.

[0040] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. cited in the invention are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heavy industry atmospheric greenhouse gas monitoring device, characterized in that: It comprises a housing (1), an absorption cell (21) arranged inside the housing (1), a reference cell (22), a composite narrow light source generating device (3), a beam splitting prism (4), and two high-precision sensor arrays (5); The composite narrow light source generating device (3) is arranged at one end of the absorption cell (21) and the reference cell (22), and two high-precision sensor arrays (5) are arranged at the other end of the absorption cell (21) and the reference cell (22), respectively; the beam splitter prism (4) is arranged between the composite narrow light source generating device (3) and the absorption cell (21) and the reference cell (22); The sample gas to be measured is passed into the absorption cell (21); the composite narrow light source generating device (3) emits light; the beam splitter (4) splits the emitted light into two beams of light with the same intensity; the two beams of light pass through the absorption cell (21) and the reference cell (22) respectively and are received by the high-precision sensor array (5) at the ends thereof; the concentration of the sample gas is calculated based on the original intensity of the emitted light and the intensity of the light after absorption using the Lambert-Beer law.

2. The heavy industry atmospheric greenhouse gas monitoring device according to claim 1, characterized in that: The absorption pool (21) is connected to an air inlet pipe (61) at one end close to the composite narrow light source generating device (3), and is connected to an air outlet pipe (62) at one end close to the high-precision sensor array (5); a pump (63) is provided on the air outlet pipe (62), and the sample gas flows through the absorption pool (21) through the pump (63).

3. The heavy industry atmospheric greenhouse gas monitoring device according to claim 2, characterized in that: The air inlet pipe (61) is provided with a gas dryer (7), and the gas dryer (7) removes water vapor in the sample gas flowing therethrough.

4. The heavy industry atmospheric greenhouse gas monitoring device according to claim 2, characterized in that: The air inlet end of the air inlet pipe (61) is provided with a cyclone cutting air inlet device (8).

5. The heavy industry atmospheric greenhouse gas monitoring device according to claim 1, characterized in that: It also includes a data processing and transmission unit (91); the high-precision sensor array (5) is connected to the data processing and transmission unit (91) via an optical fiber, and transmits data to the data processing and transmission unit (91); the data processing and transmission unit (91) calculates the concentration of the sample gas based on the data.

6. The heavy industry atmospheric greenhouse gas monitoring device according to claim 5, characterized in that: It also includes a display unit (92); the data processing and transmission unit (91) sends the calculation result to the display unit (92), and displays it visually through the display unit (92).

7. The heavy industry atmospheric greenhouse gas monitoring device according to claim 1, characterized in that: The absorption cell (21) and the reference cell (22) have the same shape and size; the absorption cell (21) and the reference cell (22) are arranged in parallel.

8. The heavy industry atmospheric greenhouse gas monitoring device according to claim 1, characterized in that: The material of the shell (1) is corrosion-resistant material.

Images