A high-precision particulate matter online analysis calibration device

Abstract

The utility model relates to industrial production fixed pollution source discharge port particulate matter concentration detection technical field discloses a kind of high-precision particulate matter online analysis calibration device, including first fixed block, the outer wall front side of first fixed block is provided with calibration mechanism, the outer wall left side of first fixed block is fixedly connected with second fixed block, the outer wall rear side of second fixed block is fixedly connected with dehumidification mechanism, the calibration mechanism includes fixed seat, the outer wall rear side of fixed seat is fixedly connected in the outer wall front side of first fixed block, the outer wall front side of fixed seat is fixedly connected with outer column, the outer wall of outer column is opened with inner cavity, the inner wall of inner cavity is fixedly connected with spring. In the utility model, the needle will be moved on the action of cylinder, stop after moving certain position, attenuation piece and astigmatism piece are in the light path of equipment, reach calibration time, while cylinder rebounds, the needle returns to original position, this structure can effectively improve the maintenance amount of equipment.

Description

Technical Field

[0001] This utility model relates to the field of particulate matter concentration detection technology at the emission outlets of stationary pollution sources in industrial production, and in particular to a high-precision online particulate matter analysis and calibration device. Background Technology

[0002] Particulate matter consists of tiny particles floating in the air, with diverse particle sizes and sources. Its complex composition and long-term exposure can harm health and affect environmental quality. To address this need, an online particulate matter analysis and calibration device has been designed to calibrate online analytical instruments in real time, ensuring accurate and reliable measurement data and improving monitoring efficiency.

[0003] The core operating principle of traditional online particulate matter analysis calibration devices lies in introducing standard particulate matter samples into the analysis process. The instrument measures online and compares the results with preset reference values, automatically adjusting the analyzer parameters to ensure the accuracy of the measurement data. While traditional devices are easy to operate, they suffer from drawbacks such as time-consuming calibration processes, high reliance on manual labor, accuracy degradation due to environmental interference, frequent maintenance requirements increasing costs, and others. Modern online particulate matter analysis calibration devices address these shortcomings by introducing an automated control system with integrated intelligent sensors, enabling real-time monitoring and self-correction. This significantly reduces manual operation and improves stability and efficiency. However, in practical use, these devices suffer from missing rapid detection structures. This deficiency directly leads to maintenance personnel being unable to quickly diagnose the source of the problem when equipment malfunctions, resulting in slower maintenance, delayed downtime, and impact on continuous monitoring performance. This shortcoming urgently requires technological innovation to fill the gap, improve efficiency and convenience, and enhance structural practicality. Therefore, a high-precision online particulate matter analysis calibration device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-precision online particulate matter analysis and calibration device, which aims to improve the problem of slow maintenance of individual devices in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision particulate matter online analysis and calibration device, comprising a first fixing block, a calibration mechanism provided on the front side of the outer wall of the first fixing block, a second fixing block fixedly connected to the left side of the outer wall of the first fixing block, and a dehumidification mechanism fixedly connected to the rear side of the outer wall of the second fixing block.

[0006] The calibration mechanism includes a fixed base, the rear side of the outer wall of the fixed base is fixedly connected to the front side of the outer wall of the first fixed block, an outer column is fixedly connected to the front side of the outer wall of the fixed base, an inner cavity is opened on the outer wall of the outer column, a spring is fixedly connected to the inner wall of the inner cavity, a shaft retaining ring is fixedly connected to the bottom end of the outer wall of the spring, a pin is fixedly connected to the inner wall of the inner cavity, a light plate assembly is provided on the outer wall of the pin, and a fixing component is provided at the bottom end of the outer wall of the outer column.

[0007] As a further description of the above technical solution:

[0008] The dehumidification mechanism includes a drying box, the front side of the outer wall of the drying box is fixedly connected to the rear side of the outer wall of the second fixing block, the inner wall of the drying box is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a sliding door, the outer wall of the sliding door is provided with a pull groove, the inner wall of the drying box is fixedly connected to multiple drying plates, the left side of the inner wall of the drying box is provided with a fixing groove, and the top of the outer wall of the drying box is fixedly connected to an air valve assembly.

[0009] As a further description of the above technical solution:

[0010] The dehumidification mechanism also includes an axial fan, the outer wall of which is fixedly connected to the inner wall of the drying box.

[0011] As a further description of the above technical solution:

[0012] The light-emitting plate assembly includes an attenuator, the left side of the outer wall of the attenuator is fixedly connected to the outer wall of the ejector pin, and the right side of the outer wall of the diffuser is fixedly connected to the outer wall of the ejector pin.

[0013] As a further description of the above technical solution:

[0014] The fixing component includes a pressure plate, the top of the outer wall of the pressure plate is fixedly connected to the bottom of the outer wall of the spring, a sealing plate is fixedly connected to the bottom of the outer wall of the outer column, and a reinforcing bolt is fixedly connected to the bottom of the outer wall of the sealing plate.

[0015] As a further description of the above technical solution:

[0016] The valve assembly includes a valve body, the bottom of the outer wall of the valve body is fixedly connected to the top of the outer wall of the drying box, and a valve is fixedly connected to the top of the outer wall of the valve body.

[0017] As a further description of the above technical solution:

[0018] A connecting column is fixedly connected to the bottom of the outer wall of the first fixing block, and an air inlet is connected to the front side of the outer wall of the connecting column.

[0019] As a further description of the above technical solution:

[0020] An air outlet is connected to the right side of the outer wall of the connecting column, and a cooling fan is fixedly connected to the bottom of the outer wall of the connecting column.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the ejector pin will move upward under the action of the cylinder and stop after moving to a certain position. At this time, the attenuator and the diffuser are in the optical path of the device. The diffuser diffuses the light source, and the receiving end of the device will receive the light signal. The optical path can be calibrated by comparing the measured light signal with the concentration value corresponding to the standard diffuser. When the calibration time is reached, the cylinder rebounds and the ejector pin returns to its original position under the action of the spring. The device can then perform measurement work normally, which can effectively improve the maintenance of the device.

[0023] 2. In this utility model, the drying box is the core unit for performing the drying work. The sliding groove ensures that the sliding door does not deviate when it moves and provides necessary guiding support. The outer wall of the sliding door is provided with a pull groove, which helps to make the opening and closing operation of the sliding door easier. Multiple drying plates are fixedly connected to the inner wall of the drying box. The drying plates are used to absorb the moisture in the test gas. The fixing groove is used to stabilize the position of the axial flow fan. The top of the outer wall of the drying box is fixedly connected to the gas valve assembly. The entire mechanism realizes the drying of the test gas. Attached Figure Description

[0024] Figure 1 This is a perspective view of a high-precision online particulate matter analysis and calibration device proposed in this utility model;

[0025] Figure 2 This is a front view of a high-precision online particulate matter analysis and calibration device proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of the outer column of a high-precision online particulate matter analysis and calibration device proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of the drying box of a high-precision online particulate matter analysis and calibration device proposed in this utility model;

[0028] Figure 5 This is a top view of a high-precision online particulate matter analysis and calibration device proposed in this utility model.

[0029] Legend:

[0030] 1. First fixing block; 2. Calibration mechanism; 201. Fixing base; 202. Outer column; 203. Inner cavity; 204. Shaft retaining ring; 205. Spring; 206. Light plate assembly; 2061. Attenuation plate; 2062. Diffusing plate; 207. Fixing assembly; 2071. Pressure plate; 2072. Sealing plate; 2073. Reinforcing bolt; 208. Ejector pin; 3. Second fixing block; 4. Dehumidification mechanism; 401. Drying box; 402. Slide groove; 403. Slide door; 404. Pull groove; 405. Drying plate; 406. Axial flow fan; 407. Fixing groove; 408. Valve assembly; 4081. Valve body; 4082. Valve; 5. Air inlet; 6. Air outlet; 7. Connecting column; 8. Cooling fan. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a high-precision particulate matter online analysis and calibration device, including a first fixing block 1, a calibration mechanism 2 is provided on the front side of the outer wall of the first fixing block 1, a second fixing block 3 is fixedly connected to the left side of the outer wall of the first fixing block 1, and a dehumidification mechanism 4 is fixedly connected to the rear side of the outer wall of the second fixing block 3.

[0033] The calibration mechanism 2 includes a fixed base 201, which is used to fix the ejector pin 208 and to fix this device to the measuring chamber. The rear side of the outer wall of the fixed base 201 is fixedly connected to the front side of the outer wall of the first fixed block 1. An outer column 202 is fixedly connected to the front side of the outer wall of the fixed base 201. An inner cavity 203 is opened in the outer wall of the outer column 202. A spring 205 is fixedly connected to the inner wall of the inner cavity 203. The spring 205 is used to return the ejector pin 208 to the initial position after calibration. A certain preload is required when installing the spring 205. A shaft retaining ring 204 is fixedly connected to the bottom end of the outer wall of the spring 205. The ejector pin 208 is fixedly connected to the inner wall of the inner cavity 203. A light plate assembly 206 is provided on the outer wall of the ejector pin 208. The light plate assembly 206 includes an attenuator 2061, which is used to reduce the light intensity of the emitted light source, thereby preventing the device from being damaged. The receiver fails due to receiving an excessively strong scattered light signal. The left side of the outer wall of the attenuator 2061 is fixedly connected to the outer wall of the ejector pin 208, and the right side of the outer wall of the diffuser 2062 is fixedly connected to the outer wall of the ejector pin 208. The diffuser 2062 is used to diffusely reflect the emitted light source, which can effectively scatter the light to the receiver of the device. A fixing component 207 is provided at the bottom of the outer wall of the outer column 202. The fixing component 207 includes a pressure plate 2071. The top of the outer wall of the pressure plate 2071 is fixedly connected to the bottom of the outer wall of the spring 205. A sealing plate 2072 is fixedly connected to the bottom of the outer wall of the outer column 202. A reinforcing bolt 2073 is fixedly connected to the bottom of the outer wall of the sealing plate 2072. The shaft retaining ring 204 and the pressure plate 2071 are used to fix the spring 205 and give it a certain preload so that it returns to its original position after calibration.

[0034] Specifically, a calibration mechanism 2 is mounted on the front side of the outer wall of the first fixing block 1. A second fixing block 3 is fixedly connected to the left side of the outer wall of the first fixing block 1, and a dehumidification mechanism 4 is fixedly connected to the rear side of the outer wall of the second fixing block 3. The calibration mechanism 2 includes a fixing seat 201, which is used to hold the ejector pin 208 in place and fix the entire device to the measuring chamber. The rear side of the outer wall of the fixing seat 201 is fixedly connected to the front side of the outer wall of the first fixing block 1, and the front side of the outer wall of the fixing seat 201 is fixedly connected to an outer column 202. An inner cavity 203 is opened in the outer wall of the outer column 202. A spring 205 is fixedly connected to the inner wall of the inner cavity 203. This spring is designed to push the ejector pin 208 back to its initial position after the calibration action is completed. When installing the spring 205, an appropriate preload force needs to be applied to maintain tension. A retaining ring 204 is fixedly connected to the bottom of the outer wall of the spring 205. The ejector pin 208 is also fixedly connected to the inner wall of the inner cavity 203. A light plate assembly 206 is provided on the outer wall of the ejector pin 208. Attenuator 2061 is used to reduce the light intensity of the emitted light source, thereby preventing the equipment receiver from malfunctioning due to receiving strong scattered light signals. The left side of the outer wall of attenuator 2061 is fixedly connected to the outer wall of ejector pin 208, and the right side of the outer wall of diffuser 2062 is fixedly connected to the outer wall of ejector pin 208. Diffuser 2062 is used to diffuse the light source, helping the light to effectively diffuse to the equipment receiver and improve the detection effect. A fixing component 207 is set at the bottom of the outer wall of outer column 202. The fixing component 207 includes pressure plate 2071. The top of the outer wall of pressure plate 2071 is fixedly connected to the bottom of the outer wall of spring 205. The bottom of the outer wall of outer column 202 is fixedly connected to sealing plate 2072. The bottom of the outer wall of sealing plate 2072 is fixedly connected to reinforcing bolt 2073. Shaft retaining ring 204 and pressure plate 2071 are used together to stabilize the position of spring 205 and provide preload during installation, ensuring that the entire mechanism can smoothly return to the set starting point after the calibration operation is completed.

[0035] Reference Figure 1 , Figure 2 and Figure 4The dehumidification mechanism 4 includes a drying box 401, which is the main drying area. The front side of the outer wall of the drying box 401 is fixedly connected to the rear side of the outer wall of the second fixing block 3. The inner wall of the drying box 401 has a sliding groove 402, and a sliding door 403 is slidably connected to the inner wall of the sliding groove 402. The sliding groove 402 provides a guiding structure for the sliding door 403 to prevent it from deviating during movement. The outer wall of the sliding door 403 has a pull groove 404, which facilitates the opening and closing of the sliding door 403. Multiple drying plates 405 are fixedly connected to the inner wall of the drying box 401, which are used to absorb moisture in the detected gas. A fixing slot 407 is provided on the left side. The dehumidification mechanism 4 also includes an axial flow fan 406. The outer wall of the axial flow fan 406 is fixedly connected to the inner wall of the drying box 401. The fixing slot 407 is used to fix the axial flow fan 406. A valve assembly 408 is fixedly connected to the top of the outer wall of the drying box 401. The valve assembly 408 includes a valve body 4081. The bottom of the outer wall of the valve body 4081 is fixedly connected to the top of the outer wall of the drying box 401. A valve 4082 is fixedly connected to the top of the outer wall of the valve body 4081. The valve body 4081 and the valve 4082 cooperate to control the flow rate of the gas.

[0036] Specifically, the drying box 401 serves as the core unit for performing the drying operation. The front of the outer wall of the drying box 401 is fixedly connected to the rear of the outer wall of the second fixing block 3. A sliding groove 402 is formed on the inner wall of the drying box 401, and a sliding door 403 is slidably connected to the inner wall of the sliding groove 402. The sliding groove 402 ensures that the sliding door 403 does not shift during movement and provides necessary guiding support. A pull groove 404 is formed on the outer wall of the sliding door 403, a design that facilitates easier opening and closing of the sliding door 403. Multiple drying plates 405 are fixedly connected to the inner wall of the drying box 401, and the drying plates 405 are focused on absorption detection. The moisture in the gas is fixed by a fixing groove 407 on the left side of the inner wall of the drying box 401. The outer wall of the axial fan 406 is fixedly connected to the inner wall of the drying box 401. The fixing groove 407 is used to stabilize the position of the axial fan 406. The top of the outer wall of the drying box 401 is fixedly connected to the valve assembly 408, which covers the valve body 4081. The bottom of the outer wall of the valve body 4081 is fixedly connected to the top of the outer wall of the drying box 401. The top of the outer wall of the valve body 4081 is fixedly connected to the valve 4082. The valve body 4081 and the valve 4082 work together to regulate the flow rate of the gas.

[0037] Reference Figure 1 , Figure 2 and Figure 5 A connecting column 7 is fixedly connected to the bottom of the outer wall of the first fixing block 1. An air inlet 5 is connected to the front side of the outer wall of the connecting column 7, which is the entrance for gas to enter the detection device. An air outlet 6 is connected to the right side of the outer wall of the connecting column 7, which is the channel for gas to exit the detection device. A cooling fan 8 is fixedly connected to the bottom of the outer wall of the connecting column 7 for cooling the device.

[0038] Specifically, a connecting column 7 is installed at the bottom of the outer wall of the first fixing block 1. An air inlet 5 is arranged on the front side of the outer wall of the connecting column 7. This inlet is the necessary point for the gas input detection device. An air outlet 6 is installed on the right side of the outer wall of the connecting column 7. This outlet is responsible for guiding the gas out of the device and into the outside. A cooling fan 8 is fixedly connected to the bottom of the outer wall of the connecting column 7. The cooling fan 8 is designed to dissipate heat energy inside the device.

[0039] Working principle: First, the ejector pin 208 moves upward under the action of the cylinder and stops after reaching a specific position. At this time, the attenuator 2061 and the diffuser 2062 are in the optical path of the device. The diffuser 2062 performs diffuse reflection processing on the light source. The receiving end of the device will receive the scattered light signal. By measuring the light signal and comparing it with the concentration value corresponding to the standard diffuser 2062, the optical path calibration task can be completed. After the calibration time is met, the cylinder performs a springback action, and the ejector pin 208 returns to the starting position under the action of the spring 205. The device continues to perform standard measurement operations. This process can effectively reduce the maintenance frequency and improve efficiency.

[0040] Furthermore, the drying box 401 is the core functional unit for drying. The slide 402 provides necessary guiding support to ensure that the sliding door 403 does not deviate when it moves, maintaining the stability of its movement trajectory. The outer wall of the sliding door 403 is provided with a pull groove 404, which facilitates the manual operation of the opening and closing of the sliding door 403, reducing the difficulty of operation. Multiple drying plates 405 are fixedly connected to the inner wall of the drying box 401. The drying plates 405 are used to absorb excess moisture in the detection gas to improve drying efficiency. The fixing groove 407 is designed to fix the position of the axial flow fan 406 to ensure that the fan is stable and does not shake during airflow. The top of the outer wall of the drying box 401 is fixedly connected to the air valve assembly 408. The air valve assembly 408 works in conjunction with adjusting the gas flow rate to control the drying process. The entire dehumidification mechanism 4 absorbs moisture through the drying plates 405, the axial flow fan 406 assists in gas circulation, and the air valve assembly 408 manages the inlet and outlet, working together to achieve the purpose of effective dehumidification of the detection gas.

[0041] 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 high-precision online particulate matter analysis and calibration device, comprising a first fixed block (1), characterized in that: A calibration mechanism (2) is provided on the front side of the outer wall of the first fixing block (1), a second fixing block (3) is fixedly connected to the left side of the outer wall of the first fixing block (1), and a dehumidification mechanism (4) is fixedly connected to the rear side of the outer wall of the second fixing block (3). The calibration mechanism (2) includes a fixed base (201), the rear side of the outer wall of the fixed base (201) is fixedly connected to the front side of the outer wall of the first fixed block (1), an outer column (202) is fixedly connected to the front side of the outer wall of the fixed base (201), an inner cavity (203) is opened on the outer wall of the outer column (202), a spring (205) is fixedly connected to the inner wall of the inner cavity (203), a shaft retaining ring (204) is fixedly connected to the bottom end of the outer wall of the spring (205), a pin (208) is fixedly connected to the inner wall of the inner cavity (203), a light plate assembly (206) is provided on the outer wall of the pin (208), and a fixing assembly (207) is provided on the bottom end of the outer wall of the outer column (202).

2. The high-precision online particulate matter analysis and calibration device according to claim 1, characterized in that: The dehumidification mechanism (4) includes a drying box (401), the front side of the outer wall of the drying box (401) is fixedly connected to the rear side of the outer wall of the second fixing block (3), the inner wall of the drying box (401) is provided with a sliding groove (402), the inner wall of the sliding groove (402) is slidably connected with a sliding door (403), the outer wall of the sliding door (403) is provided with a pull groove (404), the inner wall of the drying box (401) is fixedly connected with a plurality of drying plates (405), the left side of the inner wall of the drying box (401) is provided with a fixing groove (407), and the top of the outer wall of the drying box (401) is fixedly connected with an air valve assembly (408).

3. The high-precision online particulate matter analysis and calibration device according to claim 1, characterized in that: The dehumidification mechanism (4) also includes an axial fan (406), the outer wall of which is fixedly connected to the inner wall of the drying box (401).

4. The high-precision online particulate matter analysis and calibration device according to claim 1, characterized in that: The light plate assembly (206) includes an attenuator (2061), the outer left side of the attenuator (2061) is fixedly connected to the outer wall of the pin (208), and the outer left side of the pin (208) is fixedly connected to a diffuser (2062).

5. The high-precision online particulate matter analysis and calibration device according to claim 1, characterized in that: The fixing component (207) includes a pressure plate (2071), the top of the outer wall of the pressure plate (2071) is fixedly connected to the bottom of the outer wall of the spring (205), the bottom of the outer wall of the outer column (202) is fixedly connected to a sealing plate (2072), and the bottom of the outer wall of the sealing plate (2072) is fixedly connected to a reinforcing bolt (2073).

6. The high-precision online particulate matter analysis and calibration device according to claim 2, characterized in that: The valve assembly (408) includes a valve body (4081), the bottom of the outer wall of the valve body (4081) is fixedly connected to the top of the outer wall of the drying box (401), and a valve (4082) is fixedly connected to the top of the outer wall of the valve body (4081).

7. The high-precision online particulate matter analysis and calibration device according to claim 1, characterized in that: The bottom of the outer wall of the first fixing block (1) is fixedly connected to a connecting column (7), and the front side of the outer wall of the connecting column (7) is connected to an air inlet (5).

8. The high-precision online particulate matter analysis and calibration device according to claim 7, characterized in that: An air outlet (6) is connected to the right side of the outer wall of the connecting column (7), and a cooling fan (8) is fixedly connected to the bottom of the outer wall of the connecting column (7).

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