Benzene gas sampler
By designing a combination of filter plate, adsorption module and air pump for benzene gas sampler, the problem of existing devices being unable to efficiently collect benzene gases is solved, achieving efficient and accurate sampling and a convenient user experience.
Patent Information
- Application Number
- CN202423259275.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing gas sampling devices are not effective for specific types of gases, such as benzene compounds, and efficient and accurate sampling cannot be achieved with current technology.
A benzene gas sampler is adopted, which includes a shell and filter barrel, filter plate, adsorption module, air pump and exhaust valve combination design to ensure the accuracy and reliability of gas sampling. The adsorption module adopts a sliding connection method for easy replacement, and the adsorption module made of activated carbon has selective adsorption performance.
It improves the accuracy and sensitivity of benzene gas sampling, reduces maintenance costs, enhances the portability and stability of the device, and ensures the accuracy and reliability of sampling results.
Smart Images
Figure CN223711177U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of gas sampling, in particular to a benzene gas sampler. BACKGROUND
[0002] With the acceleration of industrialization, environmental pollution problems are increasingly serious, among which chemical pollution, especially the leakage of benzene harmful substances, becomes a big threat to public health. In order to find the existence of these toxic gases in time, various gas detection instruments emerge as the times require.
[0003] However, most of the existing gas sampling devices on the market are designed for general gases, and for specific types of gases such as benzene compounds, efficient and accurate collection cannot be achieved. CONTENT OF THE UTILITY MODEL
[0004] In view of the defects of the prior art, the application provides a benzene gas sampler, which has the advantages of what, solves the problem that most of the existing gas sampling devices on the market are designed for general gases, and for specific types of gases such as benzene compounds, efficient and accurate collection cannot be achieved.
[0005] To achieve the above purpose, the application provides the following technical scheme: a benzene gas sampler, comprising a shell and a filter bucket, the upper end of the filter bucket is fixedly connected with an upper cover, the upper end of the upper cover is fixedly connected with an air inlet pipe, the inside of the air inlet pipe is fixedly connected with a fixing frame, the inside of the fixing frame is slidably connected with a sliding rod, the upper end of the sliding rod is fixedly connected with a top plate, the bottom end of the top plate is fixedly connected with a spring, the end of the sliding rod away from the top plate is fixedly connected with a sealing plate, the inside of the filter bucket is fixedly connected with a filter plate, the inside of the shell is fixedly connected with a supporting plate, and the inside of the shell is slidably connected with four adsorption modules arranged in a straight line array.
[0006] By the above scheme, the solid particles and impurities in the gas entering the device are removed by the setting of the filter plate, ensuring the accuracy of subsequent sampling and analysis, and the presence of the filter plate also protects the subsequent adsorption modules, preventing them from being blocked or damaged by impurities, the combination of the sliding rod, spring and sealing plate enables the device to be automatically sealed when sampling is not required, preventing external gas from entering, thereby avoiding contamination and interference of the sampling results, ensuring that only when required, the target gas can enter the device for sampling, thereby improving the precision and reliability of the sampling, the sliding connection of the adsorption modules makes it easy for users to replace the modules, reducing maintenance costs and improving the service life of the sampler, according to different sampling requirements and scenes, users can easily increase or decrease the number of adsorption modules to adapt to different sampling tasks, the adsorption modules have excellent selective adsorption performance, which can efficiently capture benzene gas molecules and store them, ensuring the accuracy and reliability of the sampling results, and the device has improved the accuracy and sensitivity of benzene gas sampling, and is small in size, making it more convenient to carry.
[0007] Further, the bottom end of the shell is fixedly connected with an air pump, and the bottom end of the shell is fixedly connected with an exhaust valve on one side.
[0008] Through the above scheme, the setting of the air pump enables the device to actively extract external gas for sampling, improving the efficiency and accuracy of sampling in the case of low gas concentration, and the setting of the exhaust valve allows the user to exhaust the excess gas inside the device after sampling.
[0009] Further, the outer wall of the filter barrel is fixedly connected with a plurality of anti-skid strips arranged in a ring array.
[0010] Through the above scheme, due to the setting of the anti-skid strips, when installing the filter barrel, the operation error or safety risk caused by slipping hands is reduced.
[0011] Further, the outer wall of the shell is fixedly connected with a baffle, and the outer wall of the shell is slidably provided with a support at the bottom end.
[0012] Through the above scheme, the support is arranged at the bottom end of the outer wall of the shell in a sliding connection manner, so that users can easily install or remove the support as needed, improving the flexibility of the sampler, and also making it more portable, facilitating users to perform sampling operations in different working environments, when the support is installed and supports the ground, the baffle and the support form a stable support structure together, enhancing the stability of the sampler when placed.
[0013] Further, the end of the spring away from the top plate is fixedly connected with the fixed frame.
[0014] Through the above scheme, when the sealing plate moves under the gas pressure, the sealing plate drives the top plate to move downward, and the spring is compressed. Once the external force disappears, the spring will quickly recover its original shape due to its elastic potential, pushing the top plate and its connected slide rod and sealing plate back to the initial position. This stable reset function ensures that the air inlet pipe can be quickly and reliably closed when sampling is not required, preventing external gas from entering.
[0015] Further, the outer wall of the upper end of the shell is connected with the inner wall of the bottom end of the filter barrel through a threaded connection.
[0016] Through the above scheme, the threaded connection design makes the connection between the shell and the filter barrel both firm and easy to disassemble. Users can easily separate the two by rotating the shell or the filter barrel, thereby conveniently cleaning or replacing the filter plate inside the filter barrel, removing or replacing the adsorption module inside the shell, and other operations. This design improves the maintainability and service life of the sampler.
[0017] Further, the sealing plate is made of rubber material.
[0018] Through the above scheme, the rubber material has good elasticity and sealing performance, which can tightly fit the inner wall of the air inlet pipe and effectively prevent gas leakage.
[0019] Further, the four adsorption modules are all made of activated carbon material.
[0020] Through the above scheme, activated carbon has a developed pore structure and a large specific surface area, which can efficiently adsorb benzene gas molecules in the air. This high adsorption capacity ensures that the sampler can accurately capture the target gas, improving the reliability of the sampling results.
[0021] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:
[0022] The benzene gas sampler removes solid particles and impurities in the gas entering the device through the filter plate, ensuring the accuracy of subsequent sampling and analysis. The presence of the filter plate also protects the subsequent adsorption modules from being clogged or damaged by impurities. The combination of the slide rod, spring and sealing plate allows the device to automatically seal the air inlet pipe when sampling is not required, preventing external gas from entering and thus avoiding contamination and interference with the sampling results. This ensures that only the target gas can enter the device for sampling when needed, thereby improving the accuracy and reliability of the sampling. The sliding connection of the adsorption modules allows users to easily replace the modules, reducing maintenance costs and improving the service life of the sampler. Depending on the sampling requirements and scenarios, users can easily increase or decrease the number of adsorption modules to adapt to different sampling tasks. The adsorption modules have excellent selective adsorption performance, allowing efficient capture and storage of benzene gas molecules, ensuring the accuracy and reliability of the sampling results. The device improves the accuracy and sensitivity of benzene gas sampling and is small in size, making it more convenient to carry. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the structure of the present application;
[0024] Figure 2 It is a schematic diagram of the internal structure of the filter barrel of the structure of the present application;
[0025] Figure 3 It is a schematic diagram of the internal structure of the overall housing of the structure of the present application;
[0026] Figure 4 It is a schematic diagram of the overall installation structure of the structure of the present application.
[0027] In the figure:
[0028] 1, housing; 2, filter barrel; 3, upper cover; 4, air inlet pipe; 5, fixing frame; 6, slide rod; 7, top plate; 8, spring; 9, sealing plate; 10, filter plate; 11, support plate; 12, adsorption module; 13, air pump; 14, exhaust valve; 15, anti-skid strip; 16, baffle; 17, bracket. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0030] Please refer to Figure 1 , Figure 2 andFigure 3 The benzene gas sampler in this embodiment comprises a shell 1 and a filter barrel 2, the upper end of the filter barrel 2 is fixedly connected with an upper cover 3, the upper end of the upper cover 3 is fixedly connected with an air inlet pipe 4, the inside of the air inlet pipe 4 is fixedly connected with a fixing frame 5, the inside of the fixing frame 5 is slidingly connected with a sliding rod 6, the upper end of the sliding rod 6 is fixedly connected with a top plate 7, the bottom end of the top plate 7 is fixedly connected with a spring 8, one end of the sliding rod 6 away from the top plate 7 is fixedly connected with a sealing plate 9, the combination design of the sliding rod 6, the spring 8 and the sealing plate 9 enables the device to automatically seal the air inlet pipe 4 when sampling is not needed, preventing external gas from entering, thereby avoiding pollution and interference of the sampling results, ensuring that only when needed, the target gas can enter the device for sampling, thereby improving the precision and reliability of sampling, the inside of the filter barrel 2 is fixedly connected with a filter plate 10, the inside of the shell 1 is fixedly connected with a supporting plate 11, the inside of the shell 1 is slidingly connected with four adsorption modules 12 arranged in a straight line array, the adsorption modules 12 adopt a sliding connection mode, so that users can easily replace the modules, reducing maintenance costs and improving the service life of the sampler, according to different sampling needs and scenes, users can easily increase or decrease the number of adsorption modules 12 to adapt to different sampling tasks, the adsorption modules 12 have excellent selective adsorption performance, can efficiently capture benzene gas molecules and store them, ensuring the accuracy and reliability of the sampling results, the device improves the accuracy and sensitivity of benzene gas sampling, and is small in size, making it more convenient to carry.
[0031] Please refer to Figure 2 and Figure 3 , the bottom end of the shell 1 is fixedly connected with an air suction pump 13, one side of the bottom end of the shell 1 is fixedly connected with an exhaust valve 14, the output end of the air suction pump 13 is arranged through the bottom end of the shell 1, the arrangement of the air suction pump 13 enables the device to actively extract external gas for sampling, improving the efficiency and accuracy of sampling in the case of low gas concentration, the arrangement of the exhaust valve 14 allows users to exhaust excess gas inside the device after completing sampling, a plurality of anti-skid strips 15 arranged in an annular array are fixedly connected to the outer wall of the filter barrel 2, due to the arrangement of the anti-skid strips 15, when installing the filter barrel 2, operation errors or safety risks caused by slipping hands are reduced.
[0032] Please refer to Figure 2 , Figure 3 and Figure 4The outer wall of the shell 1 is fixedly connected with a baffle 16, and the outer wall of the shell 1 is slidably provided with a support 17 at the bottom end. The baffle 16 is located at the upper end of the support 17, and the support 17 is arranged at the bottom end of the outer wall of the shell 1 in a sliding connection manner, so that the user can easily install or remove the support 17 according to the needs, improve the flexibility of the sampler, and make it more portable, convenient for users to sample in different working environments. When the support 17 is installed and supported on the ground, the baffle 16 and the support 17 form a stable support structure together, enhancing the stability of the sampler when placed. The end of the spring 8 away from the top plate 7 is fixedly connected with the fixed frame 5. When the sealing plate 9 moves under the gas pressure, the sealing plate 9 drives the top plate 7 to move downward, and the spring 8 is compressed. Once the external force disappears, the spring 8 will quickly recover its original shape due to its elastic potential, pushing the top plate 7, the connecting slide rod 6 and the sealing plate 9 back to the initial position. This stable reset function ensures that the air inlet pipe 4 can be quickly and reliably closed when sampling is not needed, preventing external gas from entering. The upper end of the outer wall of the shell 1 is connected with the inner wall of the filter barrel 2 through threads. The threaded connection design makes the connection between the shell 1 and the filter barrel 2 firm and easy to disassemble. The user can easily separate the two by rotating the shell 1 or the filter barrel 2, so as to conveniently clean or replace the filter plate 10 inside the filter barrel 2, take out or replace the adsorption module 12 in the shell 1, and other operations. This design improves the maintainability and service life of the sampler. The sealing plate 9 is made of rubber material, which has good elasticity and sealing performance, can tightly fit the inner wall of the air inlet pipe 4, and effectively prevent gas leakage. The four adsorption modules 12 are made of activated carbon material. Activated carbon has a developed pore structure and a large specific surface area, which can efficiently adsorb benzene gas molecules in the air. This efficient adsorption capacity ensures that the sampler can accurately capture the target gas, improving the reliability of the sampling result.
[0033] The benzene gas sampler in this embodiment removes solid particles and impurities in the gas entering the device through the filter plate 10, ensuring the accuracy of subsequent sampling and analysis. The presence of the filter plate 10 also protects the subsequent adsorption modules 12 from being clogged or damaged by impurities. The combination of the sliding rod 6, spring 8, and sealing plate 9 allows the device to automatically seal the air inlet pipe 4 when sampling is not required, preventing external gas from entering and thus avoiding contamination and interference with the sampling results. This ensures that only the target gas can enter the device for sampling when needed, thereby improving the accuracy and reliability of the sampling. The sliding connection of the adsorption modules 12 allows users to easily replace the modules, reducing maintenance costs and improving the service life of the sampler. Depending on the sampling requirements and scenarios, users can easily increase or decrease the number of adsorption modules 12 to adapt to different sampling tasks. The adsorption modules 12 have excellent selective adsorption performance, allowing efficient capture and storage of benzene gas molecules, ensuring the accuracy and reliability of the sampling results. The device improves the accuracy and sensitivity of benzene gas sampling and is more convenient to carry due to its small size.
[0034] It should be noted that the adsorption modules 12 are composed of multiple layers of activated carbon with different pore sizes. Activated carbon has a certain selectivity during the adsorption process, which can preferentially adsorb benzene gas molecules and has weak adsorption ability for other non-target gases. This selectivity helps to reduce interference during sampling and improve the reliability of the sampling results.
[0035] The working principle of the above embodiment is as follows:
[0036] According to the sampling demand and scene, the user determines the number of adsorption modules 12 required, and slides them into the supporting plate 11 in the shell 1, checks whether the filter plate 10 in the filter barrel 2 is clean and intact, then rotates the shell 1 to make a threaded connection with the filter barrel 2, ensures the sealing, the shell 1 is slidably arranged inside the support 17 to support the sampler to be placed stably, opens the air suction pump 13, and the device starts to actively extract external gas. The gas enters the air inlet pipe 4, and pushes the sealing plate 9 and the slide rod 6 and top plate 7 connected thereto to move downward. At this time, the spring 8 is compressed, the gap between the sealing plate 9 and the inner wall of the air inlet pipe 4 is opened, and the gas can enter the inside of the device. The gas first passes through the filter plate 10 in the filter barrel 2 to remove solid particles and impurities. The cleaned gas enters the inside of the shell 1 and is efficiently captured and stored by the adsorption module 12. The air suction pump 13 is closed, and the extraction of external gas is stopped. At this time, the spring 8 quickly recovers its original shape due to its elastic potential energy, pushes the top plate 7, the slide rod 6 and the sealing plate 9 back to the initial position, automatically seals the air inlet pipe 4 to prevent external gas from entering. The exhaust valve 14 is opened to discharge the excess gas inside the device. Finally, the user can rotate the shell 1 or the filter barrel 2 according to the need, easily separate the two, take out the adsorption module 12, and send it to the laboratory for analysis. By measuring the amount of benzene gas molecules adsorbed on the activated carbon, the concentration and distribution of benzene gas in the sampling area can be obtained.
[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "including a" statement does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0038] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A benzene gas sampler comprising a housing (1) and a filter cartridge (2), characterized in that: The upper end of the filter bucket (2) is fixedly connected with an upper cover (3), the upper end of the upper cover (3) is fixedly connected with an air inlet pipe (4), the inside of the air inlet pipe (4) is fixedly connected with a fixing frame (5), the inside of the fixing frame (5) is slidably connected with a sliding rod (6), the upper end of the sliding rod (6) is fixedly connected with a top plate (7), the bottom end of the top plate (7) is fixedly connected with a spring (8), one end of the sliding rod (6) away from the top plate (7) is fixedly connected with a sealing plate (9), the inside of the filter bucket (2) is fixedly connected with a filter plate (10), the inside of the shell (1) is fixedly connected with a supporting plate (11), the inside of the shell (1) is slidably connected with four adsorption modules (12) arranged in a straight line array.
2. The benzene gas sampler according to claim 1, wherein: The bottom end of the shell (1) is fixedly connected with an air pump (13), one side of the bottom end of the shell (1) is fixedly connected with an exhaust valve (14), and the output end of the air pump (13) penetrates through the bottom end of the shell (1) and is arranged.
3. The benzene gas sampler according to claim 1, wherein: The outer wall of the filter bucket (2) is fixedly connected with a plurality of anti-skid strips (15) arranged in an annular array.
4. The benzene gas sampler according to claim 1, wherein: The outer wall of the shell (1) is fixedly connected with a baffle (16), the outer wall of the shell (1) is slidably provided with a support (17) at the bottom end, and the baffle (16) is located at the upper end of the support (17).
5. The benzene gas sampler of claim 1, wherein: One end of the spring (8) away from the top plate (7) is fixedly connected with the fixing frame (5).
6. The benzene gas sampler of claim 1, wherein: The upper end of the outer wall of the shell (1) and the bottom end of the inner wall of the filter bucket (2) are connected through threads.
7. The benzene gas sampler of claim 1, wherein: The sealing plate (9) is made of rubber material.
8. The benzene gas sampler of claim 1, wherein: The four adsorption modules (12) are all made of activated carbon material.