A multi-band extraction-type high-precision dust analyzer

Abstract

This utility model relates to the technical field of dust analyzers, and discloses a multi-band extraction-type high-precision dust analyzer, including a light source assembly. A protective tube is installed on the right side of the light source assembly, and a measuring chamber is fixedly connected to the right side of the protective tube. An L-shaped probe is fixedly connected to the top front of the measuring chamber, and a detector assembly is fixedly connected to the right side of the measuring chamber. A dustproof window is installed inside the protective tube, and a calibration module assembly is fixedly connected to the rear side of the measuring chamber. In this utility model, the multi-band extraction-type high-precision dust analyzer mainly relies on the coordinated operation of multiple key components. Detector assembly one and detector assembly two are responsible for receiving scattered light signals, which can accurately analyze the concentration and particle size distribution of various dusts, effectively avoiding the missed detections and false detections that may occur with single-band detection, and greatly improving the accuracy of dust detection in complex environments.

Description

Technical Field

[0001] This utility model relates to the field of dust analyzer technology, and in particular to a multi-band extraction-type high-precision dust analyzer. Background Technology

[0002] In modern industrial production, environmental protection, and occupational health and safety, accurate measurement of airborne dust concentration and particle size distribution is crucial. From an industrial production perspective, industries such as thermal power generation, steel metallurgy, cement manufacturing, and chemical production generate large amounts of dust during production. Taking thermal power generation as an example, the combustion of coal releases a large amount of fly ash particles. If these dust particles are not effectively controlled and monitored, they will not only cause serious wear and tear on power generation equipment, shorten its service life, and increase maintenance costs, but may also lead to a decrease in boiler combustion efficiency and affect power generation efficiency. According to relevant statistics, when dust concentration is too high, light scattering is currently a widely used dust detection method. It uses laser or infrared light to irradiate dust particles and infers dust concentration and particle size distribution based on the intensity and angle parameters of the scattered light.

[0003] Single-band light scattering dust analyzers have significant shortcomings. Because dust particles of different sizes have different scattering characteristics for light of different frequencies, single-band detection cannot comprehensively and accurately cover dust particles of various sizes. However, existing dust analyzers generally use a single optical signal receiver to convert the received optical signal into an electrical signal and then into dust concentration. This method can meet the on-site dust concentration measurement requirements before the emission process is upgraded to ultra-low emission. However, after the ultra-low emission upgrade, the dust concentration emitted in the flue is extremely low, and the dynamic diameter of the dust particles becomes smaller. A single scattering angle can no longer fully meet the needs of real-time dust concentration monitoring. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-band extraction-type high-precision dust analyzer, which aims to improve the existing technology for ultra-low emission retrofits where the concentration of smoke and dust emitted from the flue is extremely low, and the dynamic diameter of the smoke and dust particles becomes smaller, making it impossible for a single scattering angle to fully meet the needs of real-time monitoring of dust concentration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-band extraction-type high-precision dust analyzer, comprising a light source assembly, a protective tube I installed on the right side of the light source assembly, a measuring chamber fixedly connected to the right side of the protective tube I, an L-shaped probe II fixedly connected to the top front side of the measuring chamber, a detector assembly II fixedly connected to the right side of the measuring chamber, a dustproof window installed inside the protective tube I, a calibration module assembly fixedly connected to the rear side of the measuring chamber, a detector assembly I fixedly connected to the right front side of the measuring chamber, an L-shaped probe II fixedly connected to the top front side of the detector assembly I, an L-shaped probe I fixedly connected to the bottom of the measuring chamber, and an L-shaped probe III fixedly connected to the top of the light source assembly.

[0006] As a further description of the above technical solution:

[0007] Positioning blocks are fixedly connected to the four corners on the right side of the light source assembly, and fans are fixedly connected between adjacent left sides of the multiple positioning blocks.

[0008] As a further description of the above technical solution:

[0009] An assembly plate is provided on the middle left side of the light source assembly.

[0010] As a further description of the above technical solution:

[0011] The outer left side of the assembly plate is threaded with screws.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the detector assembly 2 is provided with a light trap.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the multi-band extraction-type high-precision dust analyzer mainly consists of several key components working together. The assembly plate serves as the basic structure, and the screws and positioning blocks work together to ensure the stability of the entire instrument structure. The fan extracts air samples, and the extracted air enters the measurement chamber through these probes. The measurement chamber is the area for dust concentration analysis, providing a basis for subsequent dust detection. Detector component one and detector component two are responsible for receiving scattered light signals, which can accurately analyze the concentration and particle size distribution of various dusts, effectively avoiding the missed detection and false detection that may occur with single-band detection, and greatly improving the accuracy of dust detection in complex environments. Attached Figure Description

[0016] Figure 1 This is a front perspective view of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0017] Figure 2 This is a rear view of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0018] Figure 3 This is a structural exploded view of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0020] Figure 5 This is a partial structural schematic diagram of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0021] Figure 6 This is a cross-sectional view of a multi-band extraction-type high-precision dust analyzer proposed in this utility model.

[0022] Legend:

[0023] 1. Light source assembly; 2. Measurement chamber; 3. Detector assembly one; 4. Detector assembly two; 5. Dustproof window; 6. Light trap; 7. Calibration module assembly; 8. L-shaped probe one; 9. L-shaped probe two; 10. Protective tube one; 11. L-shaped probe three; 12. Fan; 13. Positioning block; 14. Screw; 15. Assembly plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model is provided: a multi-band extraction-type high-precision dust analyzer, including a light source assembly 1, a protective tube 10 installed on the right side of the light source assembly 1, a measuring chamber 2 fixedly connected to the right side of the protective tube 10, an L-shaped probe 9 fixedly connected to the top front side of the measuring chamber 2, a detector assembly 4 fixedly connected to the right side of the measuring chamber 2, a dustproof window 5 installed inside the protective tube 10, a calibration module assembly 7 fixedly connected to the rear side of the measuring chamber 2, a detector assembly 3 fixedly connected to the right front side of the measuring chamber 2, an L-shaped probe 9 fixedly connected to the top front side of the detector assembly 3, an L-shaped probe 8 fixedly connected to the bottom of the measuring chamber 2, and an L-shaped probe 3 11 fixedly connected to the top of the light source assembly 1.

[0026] Specifically, an L-shaped probe 29 is fixedly installed at the top front of the measuring chamber 2, while a detector assembly 24 is fixedly connected to the right side of the measuring chamber 2. The detector assembly 24 can further process and analyze the signals and data transmitted from the measuring chamber 2. Inside the protective tube 10, the dustproof window 5 acts as a solid barrier, effectively preventing external dust and impurities from entering the protective tube 10. The calibration module assembly 7 is fixedly connected to the rear of the measuring chamber 2. The calibration module assembly 7 acts as a precise ruler for the equipment, and can periodically calibrate the measurement accuracy of the measuring chamber 2. At the right front end of the measuring chamber 2, a detector assembly 3 is fixedly connected, and an L-shaped probe 29 is also fixedly connected to the top front of the detector assembly 3. The two L-shaped probes 29 work together to improve the comprehensiveness and reliability of the overall measurement.

[0027] Please see the appendix Figure 4 - Appendix Figure 6 An assembly plate 15 is provided on the middle left side of the light source assembly 1. Positioning blocks 13 are fixedly connected to the four corners on the right side of the light source assembly 1. Fans 12 are fixedly connected between adjacent left sides of multiple positioning blocks 13. Screws 14 are threadedly connected to the left side of the outer wall of the assembly plate 15. A light trap 6 is provided on the outer wall of the detector assembly 2 4.

[0028] Specifically, the assembly plate 15 provides a secure connection, allowing the entire light source assembly 1 to be tightly integrated. On the right side of the light source assembly 1, a positioning block 13 is fixedly connected. This not only positions and fixes the light source assembly 1, ensuring its stability during equipment operation, but also effectively promotes airflow between adjacent positions on the left side of the multiple positioning blocks 13 during equipment operation. This helps dissipate heat from the light source assembly 1 and prevents excessive temperature from affecting its performance and lifespan. Screws 14 are installed on the left side of the outer wall of the assembly plate 15 via threaded connections. The screws 14 tightly fix the assembly plate 15, ensuring that it will not loosen or shift during equipment operation.

[0029] Working Principle: The multi-band extraction-type high-precision dust analyzer mainly consists of several key components working together to achieve accurate dust detection. Assembly plate 15 serves as the basic structure, with screws 14 and positioning blocks 13 ensuring the stability of the entire instrument structure. Fan 12 extracts air samples, generating a stable airflow that draws dust-containing air from the external environment into the analyzer through a specific channel. L-shaped probes 8, 9, and 11, along with protective tube 10, constitute the front-end structure for air sample extraction. These L-shaped probes can extract air from different positions and angles, expanding the sampling range and ensuring the accuracy of the collected samples, preventing damage in complex environments. While being less contaminated, it also avoids the influence of external interference on sampling to a certain extent. The extracted air enters the measurement chamber 2 through these probes. The measurement chamber 2 is the area for dust concentration analysis. In conjunction with the light source component 1, it emits a beam of light with a specific frequency and intensity, providing a basis for subsequent dust detection. When the air sample containing dust particles enters the measurement chamber 2, the laser beam emitted by the light source component 1 meets the dust particles. Detector component 1 3 and detector component 2 4 are responsible for receiving the scattered light signal and converting it into an electrical signal, which can accurately analyze the concentration and particle size distribution of various dusts. This effectively avoids the missed detection and false detection that may occur with single-band detection, and greatly improves the accuracy of dust detection in complex environments.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-band extraction-type high-precision dust analyzer, comprising a light source assembly (1), characterized in that: A protective tube (10) is installed on the right side of the light source assembly (1). A measuring chamber (2) is fixedly connected to the right side of the protective tube (10). An L-shaped probe (9) is fixedly connected to the top front side of the measuring chamber (2). A detector assembly (4) is fixedly connected to the right side of the measuring chamber (2). A dustproof window (5) is installed on the inner side of the protective tube (10). A calibration module assembly (7) is fixedly connected to the rear side of the measuring chamber (2). A detector assembly (3) is fixedly connected to the right front side of the measuring chamber (2). An L-shaped probe (9) is fixedly connected to the top front side of the detector assembly (3). An L-shaped probe (8) is fixedly connected to the bottom of the measuring chamber (2). An L-shaped probe (11) is fixedly connected to the top of the light source assembly (1).

2. The multi-band extractable high-precision dust analyzer according to claim 1, characterized in that: Positioning blocks (13) are fixedly connected to the four corners on the right side of the light source assembly (1), and fans (12) are fixedly connected between adjacent left sides of the multiple positioning blocks (13).

3. The multi-band extractable high-precision dust analyzer according to claim 1, characterized in that: An assembly plate (15) is provided on the middle left side of the light source assembly (1).

4. The multi-band, extractable, high-precision dust analyzer according to claim 3, characterized in that: The outer left side of the assembly plate (15) is threaded with screws (14).

5. The multi-band, extractable, high-precision dust analyzer according to claim 1, characterized in that: The outer wall of the detector assembly 2 (4) is provided with a light trap (6).

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