A sealed sampling device for exhaust gas monitoring

Abstract

The utility model relates to sealed sampling equipment technical field of waste gas monitoring, especially sealed sampling equipment of waste gas monitoring, including equipment body, the equipment body right -hand member inner wall fixed mounting has exhaust grid, the equipment body left segment top inner wall sliding connection has the air pump, the air pump bottom intercommunication is provided with sealed top plate, the air pump top fixedly connected with fixed plate, fixed plate fore -and-aft end fixedly connected with fixed block. The sealed top plate of air pump bottom is under the action of spacing spring, and tightly abuts the sample storage tank top outer wall, effectively prevents waste gas leakage, avoids the outside air to mix into sample, the hinged design and sealed structure of cabinet door and equipment body, further strengthened the overall sealing property, this kind of all -round sealed design, ensures the collected waste gas sample real reflection actual emission condition, improves the accuracy and reliability of monitoring data greatly, provides solid data support for environmental protection decision and industrial production supervision.

Description

Technical Field

[0001] This utility model relates to the technical field of sealed sampling equipment for waste gas monitoring, and in particular to a sealed sampling equipment for waste gas monitoring. Background Technology

[0002] In today's era of rapid industrialization, the environmental impact of industrial waste gas emissions is becoming increasingly significant. Accurate and reliable monitoring of waste gas composition and emission indicators has become a crucial aspect of environmental protection and industrial production supervision. However, existing waste gas sampling equipment suffers from numerous problems, severely limiting the accuracy and efficiency of monitoring efforts.

[0003] Traditional exhaust gas sampling equipment has poor sealing, allowing outside air to easily mix into the sample during sampling. This alters the composition of the exhaust gas sample, making subsequent monitoring data unreliable and unrepresentative, and failing to accurately reflect the actual exhaust gas emissions. Most equipment lacks adequate flow guidance and filtration functions in gas treatment, preventing effective purification and guidance of the exhaust gas during sampling. Impurities and particulate matter mixed in not only affect the accuracy and lifespan of monitoring instruments but also interfere with the analysis of key components in the exhaust gas. Traditional equipment also suffers from unreasonable structural design, cumbersome operation procedures, and complex maintenance, making it difficult to adapt to frequent monitoring tasks and diverse industrial scenarios.

[0004] With increasingly stringent environmental regulations and continuous development of monitoring technologies, higher demands are being placed on the performance of waste gas sampling equipment. Developing a sealed sampling device that can effectively address these issues, possessing excellent sealing performance, high-efficiency gas handling capabilities, and convenient operation and maintenance is of great significance for improving waste gas monitoring levels and promoting the development of environmental protection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sealed sampling device for waste gas monitoring. This solves the problem that during sampling, outside air easily mixes into the sample, altering the composition of the waste gas sample and causing subsequent monitoring data to lose its authenticity and representativeness, failing to accurately reflect the actual waste gas emissions. Most devices lack adequate flow guidance and filtration functions in gas treatment, preventing effective purification and guidance of the waste gas during sampling. Impurities and particulate matter not only affect the accuracy and lifespan of monitoring instruments but also interfere with the analysis of key components in the waste gas. Traditional equipment suffers from unreasonable structural design, cumbersome operation procedures, and complex maintenance, making it difficult to adapt to frequent monitoring tasks and diverse industrial scenarios.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sealed sampling device for exhaust gas monitoring, comprising a device body, an exhaust grille fixedly installed on the inner wall of the right end of the device body, a suction pump slidably connected to the inner wall of the top of the left section of the device body, a sealing top plate connected to the bottom of the suction pump, a fixing plate fixedly connected to the top of the suction pump, fixing blocks fixedly connected to the front and rear ends of the fixing plate, a sliding rod fixedly connected to the bottom of the fixing blocks, a stop block fixedly connected to the bottom of the sliding rod, a limit spring sleeved on the outer wall of the lower section of the sliding rod, and a connecting hose connected to the top of the suction pump. The other end of the pipe is connected to a connecting joint. A fixed base plate is fixedly connected to the left end of the inner wall of the device body. A drive shaft is driven to the inner walls of the front and rear ends of the fixed base plate. A rotating fan plate is fixedly connected to one end of the inner side of the drive shaft. An exhaust box is fixedly installed on the right end of the inner wall of the device body. An exhaust fan is fixedly installed on the inner wall of the left end of the exhaust box. A slider is slidably connected to the inner wall of the limiting groove opened at the upper and lower ends of the exhaust box. A filter plate is fixedly connected to the inner side of the slider. An installation plate is fixedly connected to the inner wall of the right section of the device body. A guide plate is fixedly installed on the inner wall of the installation plate. A sample storage tank is movably arranged on the inner wall of the middle section of the fixed base plate.

[0007] A further improvement is that a cabinet door is hinged to the front of the equipment body, and a fixed handle is fixedly connected to the front of the cabinet door; when the sample storage tank is full of waste gas samples, the operator can open the cabinet door again, pull the fixed plate upward, drive the slide rod to slide on the inner wall of the top of the equipment body, compress the limit spring, and separate the sealing top plate from the sample storage tank, thereby taking out the sample storage tank for subsequent sample testing and analysis.

[0008] A further improvement is that the mounting strips fixed to the inner wall of the exhaust grille are inclined upwards and equidistantly arranged; after the extracted exhaust gas enters the equipment body, it passes through the exhaust grille. The mounting strips fixed to the inner wall of the exhaust grille, which are inclined upwards and equidistantly arranged, can initially guide and filter the exhaust gas, blocking larger particles and impurities, so that the exhaust gas can flow more smoothly into the equipment.

[0009] A further improvement is that the bottom of the sealing top plate abuts against the outer wall of the top of the sample storage tank; the air pump is connected to the external source of waste gas to be monitored through a connecting hose and a connecting joint. After starting, the air pump generates suction to draw the waste gas into the equipment body; the sealing top plate connected to the bottom of the air pump is tightly abutted against the outer wall of the top of the sample storage tank under the action of the limiting spring, forming a sealing structure to ensure that the extracted waste gas will not leak from the connection between the air pump and the sample storage tank, thus ensuring the sealing of the sampling process and the accuracy of the sample.

[0010] A further improvement is that the sliding rod is slidably connected to the inner wall of the top of the equipment body, and the fixing block, sliding rod, stop block and limiting spring are symmetrically arranged at the front and rear ends of the fixing plate; when the sample storage tank is full of waste gas samples, the operator can open the cabinet door again, pull the fixing plate upward, drive the sliding rod to slide on the inner wall of the top of the equipment body, compress the limiting spring, and separate the sealing top plate from the sample storage tank, thereby taking out the sample storage tank for subsequent sample testing and analysis.

[0011] A further improvement is that the rotating fan plate is rotatably connected to the inner wall of the limiting port opened on the fixed base plate, and is used to exhaust the leaked monitoring gas; as the exhaust gas continues to flow, it passes through the fixed base plate, and the rotating fan plate fixed at one end of the drive shaft rotates under the drive of the exhaust gas flow. The rotating fan plate is rotatably connected to the inner wall of the limiting port opened on the fixed base plate, which can exhaust the monitoring gas that may leak, prevent the leaked gas from accumulating in the equipment, and ensure the stability and safety of the gas flow in the equipment.

[0012] A further improvement is that the exhaust grille is fixedly installed at the right end of the exhaust box. After the extracted exhaust gas enters the equipment body, it passes through the exhaust grille. The upwardly inclined and equidistantly arranged mounting strips fixed on the inner wall of the exhaust grille can initially guide and filter the exhaust gas, blocking larger particles and impurities, allowing the exhaust gas to flow more smoothly into the equipment. As the exhaust gas continues to flow, it passes the fixed base plate. The rotating fan plate fixed at one end of the drive shaft rotates under the drive of the exhaust gas flow. The rotating fan plate is rotatably connected to the inner wall of the limiting port opened on the fixed base plate. It can exhaust any monitoring gas that may leak, preventing the leaked gas from accumulating in the equipment and ensuring the stability and safety of the gas flow in the equipment.

[0013] By employing the above technical solution, this utility model provides a sealed sampling device for waste gas monitoring, which has at least the following beneficial effects:

[0014] 1. The sealing top plate at the bottom of the air pump of this utility model, under the action of the limiting spring, tightly abuts against the outer wall of the top of the sample storage tank, effectively preventing exhaust gas leakage and avoiding the mixing of outside air into the sample; the hinged design and sealing structure of the cabinet door and the equipment body further enhance the overall sealing performance; this all-round sealing design ensures that the collected exhaust gas samples truly reflect the actual emission situation, greatly improving the accuracy and reliability of monitoring data, and providing solid data support for environmental protection decision-making and industrial production supervision.

[0015] 2. This utility model's exhaust grille initially filters large particulate impurities, the rotating fan plate discharges leaked gas, the guide plate guides the gas to flow evenly, the exhaust fan accelerates gas discharge, and the filter plate deeply purifies the exhaust gas, effectively removing impurities from the exhaust gas, protecting monitoring instruments and improving analytical accuracy. The equipment is extremely convenient to maintain. The quick replacement of the sample storage tank and the sliding disassembly design of the filter plate allow operators to easily complete sample replacement and equipment maintenance, significantly improving work efficiency, reducing maintenance costs, and greatly enhancing the practicality of the equipment in real-world application scenarios. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the oblique side structure of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the inclined tilting structure of this utility model.

[0022] In the diagram: 1. Equipment body; 2. Cabinet door; 3. Fixed handle; 4. Exhaust grille; 5. Air pump; 6. Sealed top plate; 7. Fixing plate; 8. Fixing block; 9. Sliding rod; 10. Abutment block; 11. Limiting spring; 12. Connecting hose; 13. Connecting joint; 14. Fixing base plate; 15. Drive shaft; 16. Rotating fan plate; 17. Exhaust box; 18. Exhaust fan; 19. Sliding block; 20. Filter plate; 21. Mounting plate; 22. Guide plate; 23. Sample storage tank. Detailed Implementation

[0023] 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.

[0024] During the sampling process, outside air can easily mix into the sample, altering the composition of the exhaust gas sample and causing subsequent monitoring data to lose its authenticity and representativeness, failing to accurately reflect the actual exhaust gas emissions. Most devices lack adequate flow guidance and filtration functions in gas treatment, preventing effective purification and guidance of the exhaust gas during sampling. Impurities and particulate matter not only affect the accuracy and lifespan of monitoring instruments but also interfere with the analysis of key components in the exhaust gas. Traditional equipment suffers from unreasonable structural design, cumbersome operation procedures, and complex maintenance, making it difficult to adapt to frequent monitoring tasks and diverse industrial scenarios. This embodiment provides a sealed sampling device for exhaust gas monitoring. Please refer to... Figures 1-4 An embodiment provides a sealed sampling device for exhaust gas monitoring, including a device body 1. An exhaust grille 4 is fixedly installed on the inner wall of the right end of the device body 1. An air pump 5 is slidably connected to the inner wall of the top of the left section of the device body 1. A sealing top plate 6 is connected to the bottom of the air pump 5. A fixing plate 7 is fixedly connected to the top of the air pump 5. Fixing blocks 8 are fixedly connected to the front and rear ends of the fixing plate 7. A sliding rod 9 is fixedly connected to the bottom of the fixing block 8. A stop block 10 is fixedly connected to the bottom of the sliding rod 9. A limit spring 11 is sleeved on the outer wall of the lower section of the sliding rod 9. A connecting hose 12 is connected to the top of the air pump 5. A connecting connector 13 is connected to the other end of the connecting hose 12. A fixing base plate 14 is fixedly connected to the left end of the inner wall of the device body 1. A drive shaft 15 is drivenly connected to the inner wall of the front and rear ends of the fixing base plate 14. A rotating fan plate 16 is fixedly connected to one end of the inner side of the drive shaft 15. An exhaust box 17 is fixedly installed on the right end of the inner wall of the device body 1. The left end of the exhaust box 17... An exhaust fan 18 is fixedly installed on the inner wall. A slider 19 is slidably connected to the inner wall of the limiting groove opened at the upper and lower ends of the exhaust box 17. A filter plate 20 is fixedly connected to the inner side of the slider 19. An installation plate 21 is fixedly connected to the inner wall of the right section of the equipment body 1. A guide plate 22 is fixedly installed on the inner wall of the installation plate 21. A sample storage tank 23 is movably arranged on the inner wall of the middle section of the fixed base plate 14. A cabinet door 2 is hinged to the front of the equipment body 1. A fixed handle 3 is fixedly connected to the front of the cabinet door 2. The installation strips fixed to the inner wall of the exhaust grille 4 are inclined upward and are equidistant. The bottom of the sealing top plate 6 abuts against the top outer wall of the sample storage tank 23. A sliding rod 9 is slidably connected to the top inner wall of the equipment body 1. The fixed block 8, sliding rod 9, abutment block 10 and limiting spring 11 are symmetrically arranged at the front and rear ends of the fixed plate 7. A rotating fan plate 16 is rotatably connected to the inner wall of the limiting port opened at the fixed base plate 14 for exhausting the leaked monitoring gas. The exhaust grille 4 is fixedly installed at the right end of the exhaust box 17.

[0025] Working principle: When waste gas sampling is required, the operator opens the cabinet door 2 hinged to the front of the equipment body 1, opens the cabinet door through the fixed handle 3, and places the sample storage tank 23 at the designated position on the inner wall of the middle section of the fixed base plate 14; after closing the cabinet door 2, the suction pump 5 starts to work; the suction pump 5 is connected to the external waste gas source to be monitored through the connecting hose 12 and the connecting connector 13. After starting, the suction pump 5 generates suction to draw the waste gas into the equipment body 1; the sealing top plate 6 connected to the bottom of the suction pump 5 is tightly pressed against the outer wall of the top of the sample storage tank 23 under the action of the limiting spring 11, forming a sealing structure to ensure that the extracted waste gas will not leak from the connection between the suction pump 5 and the sample storage tank 23, ensuring the sealing of the sampling process and the accuracy of the sample;

[0026] After the extracted exhaust gas enters the main body 1, it passes through the exhaust grille 4. The inclined and equidistant mounting strips fixed on the inner wall of the exhaust grille 4 can initially guide and filter the exhaust gas, blocking larger particles and impurities, so that the exhaust gas can flow more smoothly into the equipment. The exhaust gas continues to flow and passes through the fixed base plate 14. The rotating fan plate 16 fixed at one end of the inner side of the drive shaft 15 rotates under the drive of the exhaust gas flow. The rotating fan plate 16 is rotatably connected to the inner wall of the limiting port opened on the fixed base plate 14. It can exhaust the monitoring gas that may leak, prevent the leaked gas from accumulating in the equipment, and ensure the stability and safety of the gas flow in the equipment.

[0027] Subsequently, the exhaust gas passes through the guide plate 22 fixed to the inner wall of the mounting plate 21, which further guides the exhaust gas to flow evenly and orderly to the exhaust box 17. The exhaust fan 18 fixedly installed on the inner wall of the left end of the exhaust box 17 is activated to accelerate the flow of exhaust gas in the exhaust box 17 and promote the exhaust gas to be discharged from the equipment as soon as possible. At the same time, the slider 19 slidably connected to the inner wall of the limiting groove opened at the upper and lower ends of the exhaust box 17, and the filter plate 20 fixedly connected to the inner side of the slider 19, can perform deep filtration of the exhaust gas, remove the fine particles and impurities remaining in the exhaust gas, ensure that the discharged gas is relatively clean, and reduce secondary pollution to the environment.

[0028] Once the sample storage tank 23 is full of exhaust gas samples, the operator can reopen the cabinet door 2, pull up the fixing plate 7, and cause the slide rod 9 to slide on the inner wall of the top of the equipment body 1, compressing the limit spring 11 and separating the sealing top plate 6 from the sample storage tank 23, thereby removing the sample storage tank 23 for subsequent sample testing and analysis. If the filter plate 20 needs to be cleaned or replaced after long-term use, the operator can slide the slider 19 in the limit groove of the exhaust box 17 to pull out the filter plate 20 for corresponding maintenance operations, ensuring that the filtration performance of the equipment is always in good condition.

[0029] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed sampling device for exhaust gas monitoring, comprising a device body (1), characterised in that: An exhaust grille (4) is fixedly installed on the inner wall of the right end of the equipment body (1). An air pump (5) is slidably connected to the inner wall of the top of the left section of the equipment body (1). A sealing top plate (6) is connected to the bottom of the air pump (5). A fixing plate (7) is fixedly connected to the top of the air pump (5). Fixing blocks (8) are fixedly connected to the front and rear ends of the fixing plate (7). A sliding rod (9) is fixedly connected to the bottom of the fixing block (8). A stop block (10) is fixedly connected to the bottom of the sliding rod (9). A limit spring (11) is sleeved on the outer wall of the lower section of the sliding rod (9). A connecting hose (12) is connected to the top of the air pump (5). A connecting joint (13) is connected to the other end of the connecting hose (12). The left end of the inner wall of the equipment body (1) is fixedly connected to... A fixed base plate (14) is connected to the inner wall of the front and rear ends of the fixed base plate (14), and a drive shaft (15) is driven to the inner wall of the drive shaft (15). A rotating wind plate (16) is fixedly connected to one end of the inner side of the drive shaft (15). An exhaust box (17) is fixedly installed on the right end of the inner wall of the device body (1). An exhaust fan (18) is fixedly installed on the inner wall of the left end of the exhaust box (17). A slider (19) is slidably connected to the inner wall of the limiting groove opened at the upper and lower ends of the exhaust box (17). A filter plate (20) is fixedly connected to the inner side of the slider (19). An installation plate (21) is fixedly connected to the inner wall of the right section of the device body (1). A guide plate (22) is fixedly installed on the inner wall of the installation plate (21). A sample storage tank (23) is movably arranged on the inner wall of the middle section of the fixed base plate (14).

2. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The device body (1) has a cabinet door (2) hinged to the front, and a fixed handle (3) is fixedly connected to the front of the cabinet door (2).

3. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The mounting strips fixed to the inner wall of the exhaust grille (4) are inclined upward and are equidistant.

4. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The bottom of the sealing top plate (6) abuts against the top outer wall of the sample storage tank (23).

5. A sealed sampling device for exhaust gas monitoring according to claim 2, characterized in that: The slide rod (9) is slidably connected to the inner wall of the top of the equipment body (1), and the fixing block (8), slide rod (9), abutment block (10) and limiting spring (11) are symmetrically arranged at the front and rear ends of the fixing plate (7).

6. A sealed sampling device for exhaust gas monitoring according to claim 3, characterized in that: The rotating air vane (16) is rotatably connected to the inner wall of the limiting port opened on the fixed base plate (14) for venting the leaked monitoring gas.

7. A sealed sampling device for exhaust gas monitoring according to claim 1, characterized in that: The exhaust grille (4) is fixedly installed on the right end of the exhaust box (17).

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