Gas collecting hood of combustible gas detector

Abstract

The utility model discloses a combustible gas detector gas-collecting hood, which particularly relates to the technical field of detector gas-collecting hoods, and comprises a combustible gas detector, a detection tube is fixedly connected to the bottom of the combustible gas detector, a limiting ring and a protective tube are sleeved in the middle of the detection tube, and a gas-collecting hood is arranged at the bottom of the combustible gas detector. An exhaust hole and a mounting hole are formed in the top of the gas-collecting hood, and a plurality of reinforcing rods are fixedly connected to the middle of the gas-collecting hood. According to the utility model, the gas-collecting hood is firstly mounted in the middle of the detection tube, and is clamped and fixed through the matching of the protective tube and the limiting ring, so that the gas-collecting hood can be conveniently mounted and fixed, the gas-collecting area is increased through the gas-collecting hood, sufficient gas collection can be ensured, and a better dustproof and rainproof effect can be achieved during use; and meanwhile, the dustproof net plate can be used for carrying out dustproof protection on entering gas, so that impurities are prevented from entering the detection channel and blocking gas flow, and the protection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas collection hood technology for detectors, and more specifically, to a gas collection hood for combustible gas detectors. Background Technology

[0002] Combustible gas detectors are detectors that respond to the concentration of one or more combustible gases. They are located above potential leak points or above the highest possible accumulation point of the detected gases. As important equipment for preventing accidents such as explosions and fires caused by combustible gas leaks, combustible gas detectors are widely used in petrochemical, gas supply, coal mining, and civil construction industries. The gas collection hood is a key component of the combustible gas detector, and its performance directly affects the detector's sensitivity, response speed, and accuracy in detecting combustible gases.

[0003] Traditional gas collection hoods have a simple structural design, typically consisting of a single hood, lacking effective guidance for gas flow. When combustible gas leaks, it is difficult for the gas to quickly and concentratedly enter the detector, resulting in low gas collection efficiency. Furthermore, in complex working environments, existing gas collection hoods are easily affected by impurities such as dust, moisture, and oil. These impurities can adhere to the surface of the gas collection hood or enter the gas collection channel, blocking the gas flow path and reducing the performance of the gas collection hood. Therefore, a new gas collection hood for combustible gas detectors is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a combustible gas detector gas collection cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combustible gas detector gas collection hood, comprising a combustible gas detector, a detection tube fixedly connected to the bottom of the combustible gas detector, a limiting ring and a protective tube sleeved in the middle of the detection tube, a gas collection hood provided at the bottom of the combustible gas detector, the installation of the gas collection hood being limited by the limiting ring, and the gas collection hood being limited by the cooperation of the protective tube and the limiting ring, which facilitates the installation and fixing of the gas collection hood, an exhaust hole and a mounting hole being provided at the top of the gas collection hood, through which gas entering the gas collection hood can flow upward and be discharged without affecting the accumulation and flow of gas at the bottom, and multiple reinforcing rods fixedly connected to the middle of the gas collection hood, thereby improving the support strength of the gas collection hood;

[0006] The gas collecting hood is provided with a guide cover and a dustproof mesh plate in the middle. The reinforcing rod has a first slot in the middle and multiple second slots on the edge of the dustproof mesh plate. Fixed blocks are symmetrically fixed to both sides of the bottom of the dustproof mesh plate. The guide cover can guide the gas entering the gas collecting hood to flow to the middle of the protective tube, which is convenient for detection and use. The dustproof mesh plate can protect the gas entering from dust.

[0007] Preferably, the detection tube passes through the middle of the mounting hole at the top of the gas collecting hood, the limiting ring is set at the top of the gas collecting hood, the protective tube is set in the middle of the gas collecting hood, and the exhaust hole array is set around the detection tube. The mounting hole facilitates the installation and fixing of the gas collecting hood, and the cooperation of the limiting ring and the protective tube can limit the installation position of the gas collecting hood, making it convenient for installation and use.

[0008] Preferably, the gas collection hood is configured as a trumpet-shaped structure, and the guide hood is configured as a trumpet-shaped structure. The top end of the guide hood corresponds to the bottom end of the protective tube. The gas collection hood can increase the gas collection area, ensure sufficient gas collection, and provide good dust and rain protection during use, thereby improving service life and stability, and facilitating installation, maintenance and use.

[0009] Preferably, the bottom edge of the guide cover is located in the middle of the first slot, and the dustproof mesh is located in the middle of the first slot, so that the guide cover and the dustproof mesh can be easily installed and supported through the first slot.

[0010] Preferably, the second slot corresponds one-to-one with the reinforcing rod, and the size of the second slot is adapted to the size of the reinforcing rod. The dustproof mesh is conveniently installed in the middle of the first slot through the second slot, and the dustproof mesh is limited and supported by the first slot.

[0011] Preferably, the cross-sectional shape of the fixing block is set to "L" shape, and the top wall of the dustproof mesh plate is attached to the bottom wall of the guide cover. The fixing block facilitates the installation and rotation of the dustproof mesh plate, making it convenient to use.

[0012] Preferably, both the gas collecting hood and the guide hood are made of stainless steel, and the detection tube is threadedly connected to the protective tube. The use of stainless steel gives the gas collecting hood the advantages of corrosion resistance, high temperature resistance, and resistance to damage, thereby improving its service life.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model first installs the gas collecting hood in the middle of the detection tube, and clamps and fixes the gas collecting hood with the cooperation of the protective tube and the limiting ring. This makes it easy to install and fix the gas collecting hood, and increases the gas collecting area to ensure sufficient gas collection. It also has a good dust and rain protection function during use, improving service life and stability. At the same time, the dustproof mesh plate can protect the incoming gas from dust, prevent impurities from entering the detection channel, block the gas flow, and improve the protection effect.

[0015] 2. The present invention also provides a first slot for limiting the installation of the guide cover and the dustproof mesh plate, and a second slot and a fixing block for conveniently installing and fixing the dustproof mesh plate in the middle of the guide cover. The guide cover allows the incoming gas to flow to the detection port in the middle of the detection tube for convenient detection. Furthermore, the gas entering the gas collection hood can be discharged through the exhaust hole without affecting the gas flow, thus improving the effectiveness of the gas collection hood.

[0016] In summary, through the interaction of the above-mentioned multiple functions, it is easy to install and use. The gas collection hood increases the gas collection area, ensuring sufficient gas collection. It also provides good dust and rain protection during use, improving service life and stability. At the same time, it can protect the incoming gas from dust, preventing impurities from entering the detection channel and blocking gas flow, thus improving the protective effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0020] The attached diagram is labeled as follows: 1. Combustible gas detector; 2. Detection tube; 3. Limiting ring; 4. Protective tube; 5. Gas collection hood; 6. Exhaust port; 7. Reinforcing rod; 8. First slot; 9. Guide cover; 10. Dustproof mesh plate; 11. Second slot; 12. Fixing block. 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. 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.

[0022] As attached Figure 1-3The combustible gas detector gas collection cover shown includes a combustible gas detector 1, a detection tube 2 fixedly connected to the bottom of the combustible gas detector 1, a limiting ring 3 and a protective tube 4 sleeved in the middle of the detection tube 2, a gas collection cover 5 set at the bottom of the combustible gas detector 1, the installation of the gas collection cover 5 is limited by the limiting ring 3, and the gas collection cover 5 is limited by the cooperation of the protective tube 4 and the limiting ring 3, which can facilitate the installation and fixation of the gas collection cover 5. The top of the gas collection cover 5 has an exhaust hole 6 and an installation hole. The gas entering the gas collection cover 5 can flow upward and be discharged through the exhaust hole 6 without affecting the accumulation and flow of gas at the bottom. Multiple reinforcing rods 7 are fixedly connected to the middle of the gas collection cover 5 to improve the support strength of the gas collection cover 5.

[0023] The gas collecting hood 5 is provided with a guide cover 9 and a dustproof mesh plate 10 in the middle. The reinforcing rod 7 has a first slot 8 in the middle. The dustproof mesh plate 10 has multiple second slots 11 on its edge. Fixing blocks 12 are symmetrically fixed to both sides of the bottom of the dustproof mesh plate 10. The gas entering the gas collecting hood 5 can flow to the middle of the protective tube 4 through the guide cover 9, which is convenient for testing. The dustproof mesh plate 10 can protect the gas entering the hood from dust.

[0024] As attached Figure 1-3 As shown, the detection tube 2 passes through the middle of the mounting hole at the top of the gas collecting hood 5. The limiting ring 3 is set at the top of the gas collecting hood 5, the protective tube 4 is set in the middle of the gas collecting hood 5, and the exhaust holes 6 are arranged in an array around the detection tube 2. The gas collecting hood 5 is set with a trumpet-shaped structure, and the guide cover 9 is set with a trumpet-shaped structure. The top end of the guide cover 9 corresponds to the bottom end of the protective tube 4, and the bottom edge of the guide cover 9 is located in the middle of the first slot 8. The dustproof mesh plate 10 is set in the middle of the first slot 8, and the second slot 11 corresponds one-to-one with the reinforcing rod 7. The size of the second slot 11 is adapted to the size of the reinforcing rod 7. The cross-sectional shape of the fixing block 12 is set to "L" shape. The top wall of the dustproof mesh plate 10 fits against the bottom wall of the guide cover 9. Both the gas collecting hood 5 and the guide cover 9 are made of stainless steel. The detection tube 2 and the protective tube 4 are threaded together. The mounting holes facilitate the installation and fixing of the gas collection hood 5. The limiting ring 3 and protective tube 4 work together to limit the installation position of the gas collection hood 5, making installation and use convenient. The gas collection hood 5 increases the gas collection area, ensuring sufficient gas collection. It also provides good dust and rain protection, improving service life and stability, and facilitating installation and maintenance. The first slot 8 facilitates the installation and support of the guide cover 9 and the dustproof mesh plate 10. The second slot 11 facilitates the installation of the dustproof mesh plate 10 in the middle of the first slot 8, and the first slot 8 provides limiting support for the dustproof mesh plate 10. The fixing block 12 facilitates the installation and rotation of the dustproof mesh plate 10, making it convenient to use. Made of stainless steel, the gas collection hood 5 has the advantages of corrosion resistance, high temperature resistance, and durability, improving its service life.

[0025] The working principle of this utility model is as follows: When in use, the protective tube 4 is separated from the detection tube 2, and then the mounting hole of the gas collecting hood 5 is fitted onto the detection tube 2. The protective tube 4 is installed at the bottom end of the detection tube 2 to squeeze the top wall of the gas collecting hood 5 to achieve the installation and fixation of the gas collecting hood 5.

[0026] Then the guide cover 9 is placed in the middle of the gas collection cover 5, so that the bottom end of the guide cover 9 is located in the middle of the first slot 8. At this time, the top opening of the guide cover 9 corresponds to the bottom opening of the protective tube 4.

[0027] Then, align the second slot 11 with the reinforcing rod 7, and place the dustproof mesh plate 10 in the middle of the first slot 8. Then rotate the dustproof mesh plate 10 to make the second slot 11 misaligned with the first slot 8. At this time, the reinforcing rod 7 can support the dustproof mesh plate 10, thereby supporting the guide cover 9 through the dustproof mesh plate 10, thus completing the installation of the dustproof mesh plate 10 and the guide cover 9.

[0028] The gas collection hood 5 increases the gas collection area, ensuring sufficient gas collection and providing good dust and rain protection during use, thus improving service life and stability. The guide cover 9 allows the gas entering the gas collection hood 5 to enter the protective tube 4 and then discharge excess gas through the exhaust hole 6, facilitating the flow of gas after it enters the gas collection hood 5 and improving the gas collection effect. The dustproof mesh plate 10 also serves as a dustproof measure.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 combustible gas detector gas collection hood, comprising a combustible gas detector (1), characterized in that: The bottom of the combustible gas detector (1) is fixedly connected to a detection tube (2), and a limiting ring (3) and a protective tube (4) are sleeved in the middle of the detection tube (2). A gas collection hood (5) is provided at the bottom of the combustible gas detector (1), and an exhaust hole (6) and a mounting hole are opened at the top of the gas collection hood (5). Multiple reinforcing rods (7) are fixedly connected in the middle of the gas collection hood (5). The gas collection hood (5) is provided with a guide cover (9) and a dustproof mesh plate (10) in the middle. The reinforcing rod (7) is provided with a first slot (8) in the middle. The dustproof mesh plate (10) is provided with multiple second slots (11) on the edge. The bottom two sides of the dustproof mesh plate (10) are symmetrically fixedly connected with fixing blocks (12).

2. The combustible gas detector gas collection hood according to claim 1, characterized in that: The detection tube (2) passes through the middle of the mounting hole at the top of the gas collection hood (5), the limiting ring (3) is set at the top of the gas collection hood (5), the protective tube (4) is set in the middle of the gas collection hood (5), and the exhaust holes (6) are arranged in an array around the detection tube (2).

3. The combustible gas detector gas collection hood according to claim 1, characterized in that: The gas collection hood (5) is configured as a horn-shaped structure, and the guide hood (9) is configured as a horn-shaped structure. The top end of the guide hood (9) corresponds to the bottom end of the protective tube (4).

4. The combustible gas detector gas collection hood according to claim 1, characterized in that: The bottom edge of the guide cover (9) is located in the middle of the first slot (8), and the dustproof mesh plate (10) is located in the middle of the first slot (8).

5. The combustible gas detector gas collection hood according to claim 1, characterized in that: The second slot (11) corresponds one-to-one with the reinforcing rod (7), and the size of the second slot (11) is adapted to the size of the reinforcing rod (7).

6. The combustible gas detector gas collection hood according to claim 1, characterized in that: The cross-sectional shape of the fixing block (12) is set to "L" shape, and the top wall of the dustproof mesh plate (10) is attached to the bottom wall of the guide cover (9).

7. The combustible gas detector gas collection hood according to claim 1, characterized in that: Both the gas collection hood (5) and the guide hood (9) are made of stainless steel, and the detection tube (2) is threadedly connected to the protective tube (4).

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