Waste gas detection device convenient to filter
Through the design of the layered filter structure and ash discharge mechanism, the problem of dust influence in the exhaust gas detection device is solved, and the effect of efficient filtration and long life is achieved, reducing maintenance costs.
Patent Information
- Application Number
- CN202422284816.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing exhaust gas detection devices are susceptible to industrial dust during use, resulting in shortening of equipment life and inaccurate measurements. A single filtration method cannot effectively remove dust and impurities, increasing maintenance costs.
A layered filter structure is adopted, including a grey-retaining board, ash-sinking chamber and a filter. The airflow direction is changed through the grey-retaining board, the grey-sinking chamber filters large particulate dust, and the filter filters fine dust, and the dust is layered collection and removal through the design of the ash-releasing mechanism.
Improves filtration efficiency, extends equipment life, reduces maintenance frequency and cost, and ensures detection accuracy and stability.
Smart Images
Figure CN223170606U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of waste gas detection, in particular to a waste gas detection device convenient for filtration. Background Technique
[0002] Industrial waste gas may contain harmful gases such as hydrogen sulfide, carbon monoxide, benzene, etc. If these gases are not detected and treated, they may cause health hazards or even endanger lives to people. The leakage or accumulation of harmful gases in industrial sites may lead to serious accidents such as fires and explosions. Through detection, these problems can be discovered and handled in a timely manner, thereby avoiding the occurrence of accidents and ensuring the production safety of industrial sites.
[0003] Common waste gas detection equipment usually consists of a sampling probe, a sampling system, a waste gas analyzer, a data recorder, a calibration device, etc. The sampling probe is used to collect waste gas samples, the sampling system is responsible for transmitting samples, the waste gas analyzer is used to measure gas components, the data recorder records the measurement results, and the calibration device ensures the accuracy of the equipment.
[0004] During the use of the waste gas detection device, it will be affected by industrial dust, which will shorten its service life. Industrial dust will block the detection sampling probe, resulting in inaccurate measurement or equipment failure. The waste gas detection device usually needs to adopt a certain filtering method to reduce the impact of dust on the equipment. General equipment only uses a relatively single filtering method and cannot completely and effectively remove dust and other impurities in the waste gas, which will lead to a decline in equipment performance and more frequent maintenance and component replacement, thereby increasing the cost of maintaining the equipment. For this reason, a waste gas detection device convenient for filtration is proposed to solve the above problems. Content of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a waste gas detection device convenient for filtration, aiming to improve the problem of low filtration effect in the prior art using a single dust filtration method.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a waste gas detection device convenient for filtration, including a housing, an air inlet is opened at the front end of the housing, a disassembly cover is inserted at the upper end of the housing, an ash discharging mechanism is arranged at the lower end of the housing, the ash discharging mechanism includes an ash storage box, a dust settling chamber is opened on the inner wall of the housing, a detection chamber is opened on the inner wall of the housing, the rear end of the air inlet is communicated with the front end of the dust settling chamber, the rear end of the dust settling chamber is communicated with the front end of the detection chamber, a dust blocking plate is fixedly connected to the inner wall of the housing, and a filter screen is in contact with the inner wall of the detection chamber.
[0007] As a further description of the above technical solution:
[0008] Two groups of the ash storage boxes are provided, and the upper end of the ash storage box is threadedly connected to the bottom of the housing.
[0009] As a further description of the above technical solution:
[0010] A sliding groove is formed in the inner wall of the outer shell, a baffle is slidably connected to the inner wall of the sliding groove, and an opening is formed in the inner wall of the baffle.
[0011] As a further description of the above technical solution:
[0012] A slider is fixedly connected to the lower end of the baffle, a chute is formed in the bottom of the outer shell, and the inner wall of the chute is slidably connected to the outer wall of the slider.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the filter screen contacts the inner wall of the detection chamber, and the upper end of the filter screen is inserted into the lower end of the disassembly cover.
[0015] As a further description of the above technical solution:
[0016] An insertion plate is inserted into the lower end of the filter screen, and the lower end of the insertion plate is fixedly connected to the bottom of the detection chamber.
[0017] As a further description of the above technical solution:
[0018] A fan is fixedly connected to the inner wall of the detection chamber, a detector is fixedly connected to the rear end of the inner wall of the detection chamber, an exhaust hole is formed in the left end of the outer shell, and the right end of the exhaust hole is communicated with the left end of the detection chamber.
[0019] As a further description of the above technical solution:
[0020] A fixing plate is fixedly connected to the rear end of the outer shell, and a screw penetrates through the front end of the fixing plate.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, through the design of the dust blocking plate, the dust settling chamber and the filter screen, the dust of different sizes is filtered layer by layer, improving the filtering efficiency. By filtering layer by layer, the dust of different diameters is distinguished and processed, sharing the burden of each layer of filtration and beneficially extending the service life of the equipment.
[0023] 2. In the utility model, through the design of the ash discharging mechanism, the equipment can control the used ash storage box through the baffle during operation. When one of the ash storage boxes is taken out, the other ash storage box can continue to collect the internal dust, and at the same time, the dust will not directly fall out of the outer shell. Description of the Drawings
[0024] Figure 1 It is a schematic diagram of the main structure of the utility model.
[0025] Figure 2 This is a schematic cross-sectional view of the ash discharging mechanism of the present utility model.
[0026] Figure 3 It is Figure 2 an enlarged schematic view of part A in
[0027] Figure 4 a schematic view of the baffle of the present utility model.
[0028] Legend: 1. Outer shell; 2. Demountable cover; 3. Air inlet; 4. Ash discharging mechanism; 5. Ash settling chamber; 6. Ash blocking plate; 7. Filter screen; 8. Fan; 9. Detector; 10. Plugboard; 11. Detection chamber; 12. Exhaust hole; 13. Fixed plate; 14. Screw; 401. Ash storage box; 402. Baffle; 403. Slide block; 404. Sliding groove; 405. Chute; 406. Opening. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Refer to Figure 1 、 Figure 2, an embodiment provided by the present utility model: an exhaust gas detection device convenient for filtration, including a housing 1, which stabilizes the whole device and protects the internal space from being affected by the outside. An air inlet 3 is provided at the front end of the housing 1, so that the gas with dust can be inhaled into the interior of the housing 1 through the air inlet 3. A disassembly cover 2 is inserted at the upper end of the housing 1, so that the upper end of the housing 1 can be opened through the disassembly cover 2 to facilitate the replacement and inspection of the components therein. A handle is connected to the upper end of the disassembly cover 2 for convenient use. An ash discharging mechanism 4 is provided at the lower end of the housing 1. The ash discharging mechanism 4 includes an ash storage box 401, so that the filtered dust inside is collected in the ash storage box 401. A dust settling chamber 5 is provided on the inner wall of the housing 1, and a detection chamber 11 is provided on the inner wall of the housing 1. The rear end of the air inlet 3 is communicated with the front end of the dust settling chamber 5, and the rear end of the dust settling chamber 5 is communicated with the front end of the detection chamber 11. So that the gas with dust enters from the air inlet 3 and the air flow pipeline becomes wider in the dust settling chamber 5, and the air flow speed will slow down. After the gas flow speed slows down, the dust therein will be deposited at the bottom of the dust settling chamber 5 under the influence of gravity. A large amount of dust will be filtered in the first two spaces of the housing 1. Before the gas reaches the detection chamber 11, most of the dust will be filtered, and only some fine dust will be blocked by the filter screen 7 and then blown into the detection chamber 11 by the fan 8 to be detected by the detector 9. A dust blocking plate 6 is fixedly connected to the inner wall of the housing 1, so that the gas flow direction will be changed by the dust blocking plate 6 when the gas enters the housing 1, and the dust will be blocked by the dust blocking plate 6 under the influence of inertia. A fan 8 is fixedly connected to the inner wall of the housing 1. The fan 8 is a prior art to blow the inflowing gas into the detector 9. A detector 9 is fixedly connected to the rear end of the inner wall of the detection chamber 11. The detector 9 is a prior art and can detect the exhaust gas in the air. An exhaust hole 12 is provided at the left end of the housing 1, and the right end of the exhaust hole 12 is communicated with the left end of the detection chamber 11, so that the detected gas flows out through the exhaust hole 12. A fixing plate 13 is fixedly connected to the rear end of the housing 1, so that the fixing plate 13 provides a stable fixing effect for the housing 1. A screw 14 penetrates through the front end of the fixing plate 13, so that the fixing plate 13 can be fixed on the wall through the screw 14 to provide a stable fixing effect.
[0031] Reference Figures 2 - 4, there are two sets of ash storage boxes 401. Having two sets of ash storage boxes 401 enables the sliding baffle 402 to switch the ash outlet when removing and cleaning one of them, allowing the other ash storage box 401 to continue working. The upper end of the ash storage box 401 is threadedly connected to the bottom of the outer shell 1, providing a stable effect by fixing the ash storage box 401 and the outer shell 1 through threads. A sliding groove 404 is provided on the inner wall of the outer shell 1, enabling the baffle 402 to move horizontally in the sliding groove 404 to provide a stable effect, and the sliding of the baffle 402 can control the opening 406 to correspond to the ash storage box 401 to be used. The inner wall of the sliding groove 404 is slidably connected to the baffle 402, so that dust will be blocked by the baffle 402 and will not directly fall outside the outer shell 1. An opening 406 is provided on the inner wall of the baffle 402, so that dust will fall into the corresponding ash storage box 401 through the opening 406. The lower end of the baffle 402 is fixedly connected to a slider 403, providing a stable effect by fixing the slider 403 and the baffle 402, and the slider 403 can control the sliding of the baffle 402. A chute 405 is provided at the bottom of the outer shell 1, and the inner wall of the chute 405 is slidably connected to the outer wall of the slider 403, providing a space for the slider 403 to move, so that the slider 403 will only drive the baffle 402 to move horizontally. The outer wall of the filter screen 7 contacts the inner wall of the detection chamber 11, so that the air flow between the detection chamber 11 and the ash sedimentation chamber 5 must pass through the filter screen 7, preventing fine dust from directly passing through the gap and ensuring the seal between the detection chamber 11 and the filter screen 7. The upper end of the filter screen 7 is inserted into the lower end of the disassembly cover 2, so that the upper end of the filter screen 7 is sealed by being inserted into the disassembly cover 2 and dust cannot pass through. The lower end of the filter screen 7 is inserted with a plug board 10, providing a stable fixing effect for the filter screen 7 by the plug board 10, and the filter screen 7 and the plug board 10 can be disassembled by removing the insertion connection. The lower end of the plug board 10 is fixedly connected to the bottom of the detection chamber 11, providing a stable effect for the fixing of the plug board 10 in the detection chamber 11.
[0032] Working principle: When using the exhaust gas detection device, the equipment needs to be used to filter the incoming gas. Turning on the fan 8 in the device will cause the external gas to flow in from the air inlet 3. The channel is narrow after the gas enters from the air inlet 3 and the air flow speed is fast. At this time, the air flow will be affected by the dust blocking plate 6 and change direction. Due to inertia, the larger dust particles mixed in the air flow will hit the dust blocking plate 6 and be intercepted. When the air flow passes through, it will enter the ash sedimentation chamber 5. At this time, because the space in the ash sedimentation chamber 5 is no longer narrow, the air flow will slow down, and some larger dust will slowly fall to the bottom of the ash sedimentation chamber 5. When the air flow reaches the filter screen 7, the filter screen 7 will filter the remaining fine dust and then blow the air flow to the detector 9 through the fan 8. Finally, the gas will flow out through the exhaust hole 12.
[0033] When it is necessary to open the device to replace the filter screen 7, the disassembly cover 2 needs to be pulled out to release the insertion connection state between the disassembly cover 2 and the filter screen 7, and the filter screen 7 is pulled out from the plug board 10. A new filter screen 7 is inserted into the slot of the plug board 10, and the disassembly cover 2 is reinserted to complete the replacement.
[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An exhaust gas detection device convenient for filtering, comprising a housing (1), characterized in that: An air inlet (3) is provided at the front end of the outer shell (1). A detachable cover (2) is inserted into the upper end of the outer shell (1). An ash discharging mechanism (4) is provided at the lower end of the outer shell (1). The ash discharging mechanism (4) includes an ash storage box (401). A dust settling chamber (5) is provided on the inner wall of the outer shell (1). A detection chamber (11) is provided on the inner wall of the outer shell (1). The rear end of the air inlet (3) is communicated with the front end of the dust settling chamber (5). The rear end of the dust settling chamber (5) is communicated with the front end of the detection chamber (11). A dust blocking plate (6) is fixedly connected to the inner wall of the outer shell (1). A filter screen (7) is in contact with the inner wall of the detection chamber (11).
2. The exhaust gas detection device facilitating filtration according to claim 1, wherein: There are two groups of the ash storage boxes (401). The upper end of the ash storage box (401) is threadedly connected to the bottom of the outer shell (1).
3. The exhaust gas detection device convenient for filtering according to claim 1, characterized in that: A sliding groove (404) is provided on the inner wall of the outer shell (1). A baffle (402) is slidably connected to the inner wall of the sliding groove (404). An opening (406) is provided on the inner wall of the baffle (402).
4. The exhaust gas detection device facilitating filtration according to claim 3, wherein: A slider (403) is fixedly connected to the lower end of the baffle (402). A chute (405) is provided at the bottom of the outer shell (1). The inner wall of the chute (405) is slidably connected to the outer wall of the slider (403).
5. The exhaust gas detection device facilitating filtration according to claim 1, wherein: The outer wall of the filter screen (7) is in contact with the inner wall of the detection chamber (11). The upper end of the filter screen (7) is inserted into the lower end of the detachable cover (2).
6. The exhaust gas detection device facilitating filtration according to claim 1, characterized in that: An insertion plate (10) is inserted into the lower end of the filter screen (7). The lower end of the insertion plate (10) is fixedly connected to the bottom of the detection chamber (11).
7. An exhaust gas detection device convenient for filtering according to claim 1, characterized in that: A fan (8) is fixedly connected to the inner wall of the detection chamber (11). A detector (9) is fixedly connected to the rear end of the inner wall of the detection chamber (11). An exhaust hole (12) is provided at the left end of the outer shell (1). The right end of the exhaust hole (12) is communicated with the left end of the detection chamber (11).
8. The exhaust gas detection device convenient for filtering according to claim 1, wherein: A fixing plate (13) is fixedly connected to the rear end of the outer shell (1). A screw (14) passes through the front end of the fixing plate (13).