An in-situ combustible detection probe

Abstract

The utility model discloses a combustible in situ detection probe relates to gas detection equipment technical field, including probe body, probe body includes the transition pipe, filter tube and protection head that can be detachably connected in proper order, at least two groups of filter plate are detachably arranged in filter tube, and the adsorbing material is filled between two filter plates. Through the setting of the utility model, the filter plate in filter tube can be dismantled, and it is convenient for the periodic cleaning or the replacement of the impurity on filter plate, avoids the filter plate blockage and influences the detection effect, simultaneously, the adsorbing material between two filter plates can dismantle replacement, ensures that the adsorbing material always keeps the efficient adsorption capacity, maintains the detection precision of probe.

Description

Technical Field

[0001] This utility model relates to the field of gas detection equipment technology, and in particular to an in-situ detection probe for combustibles. Background Technology

[0002] In industrial production, real-time detection of flammable gases is crucial for safe production, especially in scenarios involving flammable and explosive gases such as petrochemicals, gas transmission, and coal mining. Accurate in-situ detection can effectively prevent safety accidents such as explosions and fires. However, existing flammable gas detection probes often face interference from complex environmental gases in practical applications. Industrial air often contains a mixture of non-flammable gases such as carbon dioxide, nitrogen, and volatile organic compounds, as well as impurities like dust and oil. If these substances directly enter the detection probe, it can lead to sensor misjudgments, distorted detection data, or even sensor poisoning and failure.

[0003] Currently, most detection probes on the market employ a single filtration design for their air intake structure, such as using only a simple filter screen or a single adsorbent material. This makes it difficult to efficiently filter interfering gases with different properties. Furthermore, existing filter components are typically fixed structures, making it difficult to replace the adsorbent material once it becomes saturated. This not only affects detection accuracy but also requires complete probe disassembly for maintenance, increasing operational costs in industrial settings. In addition, traditional filtration structures cannot flexibly adjust the filtration levels according to different detection environments. When dealing with complex gas mixtures, they struggle to effectively remove multiple interfering gases, significantly compromising the reliability of detection results.

[0004] Based on the current state of the technology, there is an urgent need to design a detection probe that has a detachable multi-layer filter plate structure in the air intake path and achieves precise filtration by filling it with adsorption material. This would solve the problems of low filtration efficiency, inconvenient maintenance, and poor environmental adaptability in the existing technology, and improve the accuracy and stability of in-situ detection of combustible gases. Utility Model Content

[0005] The purpose of this invention is to address the deficiencies in the existing technology by proposing an in-situ detection probe for combustibles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A combustible material in-situ detection probe includes a probe body, which includes a transition tube, a filter tube, and a protective head that are detachably connected in sequence. At least two sets of filter plates are detachably disposed inside the filter tube, and an adsorbent material is filled between the two filter plates.

[0008] Furthermore, a flow detection component is provided inside the transition tube.

[0009] Furthermore, the filter plate includes a fixed filter plate and an adjustable filter plate. The fixed filter plate is disposed at one end of the filter tube near the protective head. The inner wall of the filter tube is provided with a threaded groove or a threaded protrusion. The adjustable filter plate is threadedly connected to the filter tube.

[0010] Furthermore, a filling cavity is formed between the fixed filter plate and the adjustable filter plate, or between the adjustable filter plates, and the filling cavity is filled with adsorption particles, which are one or more of activated carbon, molecular sieve particles, or fiber filter paper.

[0011] Furthermore, the adjustable filter plate is fixedly connected to multiple sets of positioning protrusions, which are spaced apart.

[0012] Furthermore, a mating groove is provided on the inner wall of the bottom of the filter tube, and a mating ring is fixedly connected to the top of the protective head, with the mating ring being magnetically connected to the mating groove.

[0013] Furthermore, the protective head includes a connecting section and an enlarged diameter section. The connecting section is used to connect with the filter tube, and the inner diameter of the enlarged diameter section gradually increases from the side adjacent to the connecting section to the side away from the connecting section. A protective net is provided at the end of the enlarged diameter section.

[0014] Beneficial effects

[0015] Compared to existing technologies, the advantages of this invention are as follows: the filter plates inside the filter tube are removable, facilitating regular cleaning or replacement of impurities on the filter plates and preventing clogging that could affect detection results; simultaneously, the adsorbent material between the two filter plates is removable and replaceable, ensuring that the adsorbent material maintains its high adsorption capacity and sustains the probe's detection accuracy. The adsorbent material (such as activated carbon, molecular sieves, etc.) filling the space between the filter plates can specifically adsorb interfering components (such as moisture, harmful gases, etc.) in the gas. When detecting combustible gases, water vapor or other volatile organic compounds in the air may interfere with the detection; the adsorbent material can adsorb these substances, making the gas entering the detection area purer, reducing background interference, and improving the detection sensitivity and reliability of combustible gases. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a schematic diagram of the installation structure of an in-situ combustible material detection probe.

[0018] Figure 2 This is a schematic diagram of the split structure of an in-situ combustible material detection probe.

[0019] Figure 3This is a schematic diagram of the internal structure of a combustible material in-situ detection probe.

[0020] In the diagram: 1. Probe body; 2. Detector; 11. Transition tube; 12. Filter tube; 13. Protective head; 14. Adjustable filter plate; 15. Mating groove; 16. Fixed filter plate; 17. Mating ring; 18. Protective net. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Reference Figures 1-3 A combustible material in-situ detection probe includes a probe body 1. The probe body 1 includes a transition tube 11, a filter tube 12 and a protective head 13 that are detachably connected in sequence. At least two sets of filter plates are detachably arranged inside the filter tube 12, and an adsorbent material is filled between the two filter plates.

[0024] In use, the probe body 1 is mounted on the end of the monitoring tube of the detector 2. The probe body 1 consists of a transition tube 11, a filter tube 12, and a protective head 13, which are detachably connected in sequence. This modular structure allows each component to be disassembled and installed independently. When a component (such as the protective head 13) becomes less functional due to long-term use, it is not necessary to replace the entire probe; only the damaged component needs to be replaced, reducing maintenance and time costs.

[0025] The adjustable filter plate 14 is made of 304 stainless steel mesh, with a precision aperture of 0.1mm achieved through laser etching. This provides a stable support structure while ensuring minimal resistance to gas flow. The filter plates inside the filter tube 12 are removable, facilitating regular cleaning or replacement of impurities and preventing filter clogging that could affect detection results. Simultaneously, the adsorption material between the two filter plates is removable and replaceable, ensuring that the adsorption material maintains its high adsorption capacity and sustains the probe's detection accuracy.

[0026] The adsorbent material (such as activated carbon, molecular sieves, etc.) filling the spaces between filter plates can specifically adsorb interfering components (such as moisture, harmful gases, etc.) in the gas. For example, when detecting combustible gases, water vapor or other volatile organic compounds in the air may interfere with the detection. The adsorbent material can adsorb these substances, making the gas entering the detection area purer, reducing background interference, and improving the detection sensitivity and reliability of combustible gases.

[0027] The protective head 13 is located at the front end of the probe and can directly withstand physical impacts (such as collisions and vibrations), corrosive gas corrosion, and the effects of harsh conditions such as high temperature and high humidity in the external environment. It provides a physical barrier for the internal filter tube 12 and detection elements, extending the service life of the probe.

[0028] In other preferred embodiments, a flow detection component is provided inside the transition tube 11. The flow detection component (such as a thermal flow meter, turbine flow meter, etc.) can monitor the gas flow rate through the transition tube 11 in real time, directly reflecting the rate at which the gas to be measured enters the probe. This avoids abnormal detection data due to unstable airflow, ensuring the continuity and reliability of the detection process.

[0029] In other preferred embodiments, the filter plates include a fixed filter plate 16 and an adjustable filter plate 14. The fixed filter plate 16 is disposed at one end of the filter tube 12 near the protective head 13. The inner wall of the filter tube 12 is provided with threaded grooves or threaded protrusions. The adjustable filter plate 14 is threadedly connected to the filter tube 12. Adsorbent material (such as activated carbon or molecular sieve) is filled between the two filter plates. The thread adjustment of the adjustable filter plate 14 can change the volume of the filling space. When the content of harmful impurities (such as moisture or sulfides) in the detected gas is high, the adjustable filter plate 14 can be rotated to increase the filling space, increase the amount of adsorbent material used, and improve the purification effect. If the impurity content is low, the filling amount can be reduced to reduce airflow resistance and avoid wasting adsorbent material.

[0030] Specifically, a filling cavity is formed between the fixed filter plate 16 and the adjustable filter plate 14, or between the adjustable filter plate 14 and the adjustable filter plate 14. The filling cavity is filled with adsorption particles, which are one or more of activated carbon, molecular sieve particles, or fiber filter paper.

[0031] Preferably, the adjustable filter plate 14 is provided with three sets, forming three sets of filling cavities. The first layer of filling cavity formed between the fixed filter plate 16 and the adjustable filter plate 14 is filled with activated carbon particles. This layer is evenly laid with a filling thickness of 10mm, which can efficiently adsorb volatile organic gases such as benzene series compounds and aldehydes, and purify interference sources.

[0032] The second layer of filling cavity contains 5A molecular sieve particles with a particle size of 2-10mm. Its unique 0.5nm pore size structure can accurately trap carbon dioxide gas molecules, while maintaining high permeability to flammable gases such as methane and hydrogen.

[0033] The third layer of the filling cavity is filled with high-density glass fiber filter paper with a thickness of 2-10 mm. It is formed into a three-dimensional interwoven micron-level fiber network through melt-blowing process, achieving a filtration efficiency of 99.9% for particles ≥0.3μm. This layer effectively intercepts dust, oil, and microbial aerosols in the gas, preventing the sensor in the detection cavity from experiencing a decrease in sensitivity due to impurities.

[0034] Specifically, multiple sets of positioning protrusions are fixedly connected to the adjustable filter plate 14, and the multiple sets of positioning protrusions are spaced apart. The protrusions are columnar or prismatic and distributed on the edge of the adjustable filter plate 14. The operator can directly pinch or use tools (such as tweezers or wrenches) to hold the protrusions without directly contacting the smooth surface of the filter plate.

[0035] In other preferred embodiments, a mating groove 15 is formed on the inner wall of the bottom of the filter tube 12, and a mating ring 17 is fixedly connected to the top of the protective head 13. The mating ring 17 is magnetically connected to the mating groove 15. This structure facilitates the quick disassembly and installation of the protective head 13.

[0036] In other preferred embodiments, the protective head 13 includes a connecting section and an expanding section. The connecting section is used to connect to the filter tube 12, and the inner diameter of the expanding section gradually increases from the side adjacent to the connecting section to the side away from the connecting section. A protective mesh is provided at the end of the expanding section. The protective head 13 is trumpet-shaped with an opening diameter of 20 mm to facilitate the smooth entry of external air. The protective mesh 18 is a metal mesh with a mesh aperture of 0.5 mm, which can initially filter out dust, particles, and other impurities in the air, preventing larger particles from clogging subsequent filter components.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A combustible material in-situ detection probe, characterized in that, The device includes a probe body, which comprises a transition tube, a filter tube, and a protective head that are detachably connected in sequence. At least two sets of filter plates are detachably disposed inside the filter tube, and adsorption material is filled between the two filter plates.

2. The in-situ detection probe for combustibles according to claim 1, characterized in that, A flow detection component is installed inside the transition pipe.

3. The in-situ detection probe for combustibles according to claim 1, characterized in that, The filter plate includes a fixed filter plate and an adjustable filter plate. The fixed filter plate is located at one end of the filter tube near the protective head. The inner wall of the filter tube is provided with a threaded groove or a threaded protrusion. The adjustable filter plate is threadedly connected to the filter tube.

4. The in-situ detection probe for combustibles according to claim 3, characterized in that, A filling cavity is formed between the fixed filter plate and the adjustable filter plate, or between the adjustable filter plate and the adjustable filter plate. The filling cavity is filled with adsorption particles, which are one of activated carbon, molecular sieve particles, or fiber filter paper.

5. The in-situ detection probe for combustibles according to claim 3, characterized in that, The adjustable filter plate is fixedly connected to multiple sets of positioning protrusions, which are spaced apart.

6. The in-situ detection probe for combustibles according to claim 1, characterized in that, The filter tube has a mating groove on its bottom inner wall, and the protective head has a mating ring fixedly connected to its top. The mating ring is magnetically connected to the mating groove.

7. The in-situ detection probe for combustibles according to claim 1, characterized in that, The protective head includes a connecting section and an enlarged diameter section. The connecting section is used to connect with the filter tube. The inner diameter of the enlarged diameter section gradually increases from the side adjacent to the connecting section to the side away from the connecting section. A protective net is provided at the end of the enlarged diameter section.

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