Garbage incineration gas detection device

Abstract

The utility model discloses a waste incineration gas detection device which comprises a cooling structure, a gas inlet pipe arranged on the left side of the cooling structure, a first valve arranged at the position, corresponding to a smoke exhaust pipeline, of the gas inlet pipe, a filtering structure communicated with the middle of the gas inlet pipe, a detection box arranged on the upper side of the cooling structure, and a communication pipe communicated with the detection box on the right side of the cooling structure. A dust cover is arranged at the position, corresponding to the communicating pipe, in the detection box, a cleaning opening is formed in the left side of the detection box, a first sealing cover is hinged to the cleaning opening, the top of the detection box is communicated with an air outlet pipe, the tail end of the air outlet pipe is communicated with the smoke exhaust pipeline, and a second valve is arranged at the position, corresponding to the smoke exhaust pipeline, of the air outlet pipe. An air outlet fan is arranged at the position, corresponding to the air outlet pipe, of the top of the detection box; the smoke can be filtered through the filtering structure, dust in the smoke entering the cooling structure is reduced, meanwhile, the dust cover is arranged in the detection box, the smoke is further filtered, and the detection effect of the detection box is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste incineration, in particular to a waste incineration gas detection device. Background Technique

[0002] Due to the complex composition and mixed collection of domestic waste, the initial pollutants in the flue gas generated by its incineration are of various types, high concentration and large fluctuations. Generally, in the flue gas generated by a waste incineration grate furnace, the HCL content ≤ 1200mg / Nm, the SO2 content ≤ 800mg / Nm, the HF content ≤ 5mg / Nm, the CO content ≤ 10mg / Nm, the NOx content ≤ 500mg / Nm, and the dust content ≤ 5000mg / Nm. Moreover, the flue gas temperature at the outlet of the incinerator reaches above 1000°C. Therefore, the real-time detection of the initial pollutant content is a difficult problem in the waste incineration industry.

[0003] The invention patent CN116124989A discloses a waste incineration flue gas real-time detection device, which reduces the temperature of the flue gas through water-cooling and air-cooling technologies, so as to facilitate the subsequent detection work of the smoke detector. At the same time, a flue gas acceleration nozzle is provided to strengthen the discharge of dust in the flue pipe.

[0004] However, in this invention, when draining water and ash at the condenser, due to the setting of the cooling equipment, when high-temperature dust enters the condenser, it quickly sublimes. In addition, the principle of the nozzle is to utilize inertia and the flow force of the dust to increase its ejection speed. However, this speed is limited. For the quickly sublimated dust, most of it cannot be discharged in this way. Therefore, the cleaning effect is not significant. At the same time, when the flue gas enters the flue gas cooling tank, a cooling fan adds cold air into the flue gas cooling tank. However, due to the working principle of the fan, when adding cold air, external air will also be introduced into the flue gas cooling tank, resulting in inaccurate subsequent detection effect of the flue gas and losing the significance of flue gas detection. Therefore, we propose a waste incineration gas detection device. Utility Model Content

[0005] Aiming at the above technical problems in the prior art, the utility model provides a waste incineration gas detection device with simple structure and high practicability, aiming to solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A garbage incineration gas detection device is used for detecting the gas in the exhaust pipe of garbage incineration, and includes a cooling structure. An air inlet pipe is provided on the left side of the cooling structure. One end of the air inlet pipe is communicated with the exhaust pipe, and the other end is inserted into the left side of the cooling structure and communicated with it. A first valve is provided at the position where the air inlet pipe corresponds to the exhaust pipe. A filtering structure is communicated in the middle of the air inlet pipe. A detection box is provided on the upper side of the cooling structure. The detection box is electrically connected to an external terminal system. The right side of the cooling structure is communicated with the detection box through a connecting pipe. A dust-proof cover is provided in the detection box corresponding to the connecting pipe. A cleaning port is opened on the left side of the detection box. A first sealing cover is hinged at the cleaning port. An air outlet pipe is communicated at the top of the detection box. The end of the air outlet pipe is communicated with the exhaust pipe. An air outlet fan is provided at the position where the air outlet pipe corresponds to the exhaust pipe on the top of the detection box.

[0008] Preferably, the cooling structure includes a box body. A serpentine pipe is provided inside the box body. The left end of the serpentine pipe is inserted into the box body corresponding to the air inlet pipe and communicated with it. The right end is inserted into the box body corresponding to the connecting pipe and communicated with it. Circulating water cooling pipes are respectively provided at both ends of the box body. The circulating water cooling pipes are communicated with an external water cooling circulation system.

[0009] Preferably, the filtering structure includes a dust collection box. A dust collection port is opened on the lower side of the middle of the air inlet pipe. The top of the dust collection box is fixed at the dust collection port and communicated with it. A dust-proof net is provided at the right side height corresponding to the dust collection box in the air inlet pipe. A dust removal port is opened on the left side wall of the dust collection box. A second sealing cover is hinged at the dust removal port.

[0010] Preferably, the air inlet pipe is recessed downward at the position corresponding to the dust collection box.

[0011] Preferably, a detector is provided in the detection box. The detector is arranged on the first sealing cover. The detector is electrically connected to an external terminal system.

[0012] Preferably, a second valve is provided at the position where the air outlet pipe corresponds to the exhaust pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] A garbage incineration gas detection device provided by the utility model, when detecting flue gas, first open the first valve and the second valve, and turn on the air outlet fan to sample the flue gas in the smoke exhaust pipe. The flue gas is inhaled into the serpentine pipe of the cooling structure through the air inlet pipe. Due to the setting of the filtering structure in cooperation with the concave setting of the air inlet pipe, when inhaling air, larger and heavier dust drops downward by gravity into the dust collection box. At the same time, the dustproof net further filters the dust. The dust filtered onto the dustproof net can slide into the dust collection box by gravity, and after the detection, the dust collection box and the dustproof net can be cleaned by opening the second sealing cover to ensure normal use next time. At the same time, a dustproof cover is provided in the detection box to further filter the dust and ensure the detection effect of the detection box. And a first sealing cover is provided on the left side of the detection box, which can clean the inner machine and the dustproof cover in the detection box after the detection to ensure normal detection on the lower side;

[0015] At the same time, the air inlet pipe, the serpentine pipe and the connecting pipe are all arranged in a plug-in manner, and can be disassembled, cleaned or replaced regularly to ensure the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall schematic diagram of a garbage incineration gas detection device described in the utility model;

[0017] Figure 2 is a schematic diagram of the filtering structure of a garbage incineration gas detection device described in the utility model;

[0018] Figure 3 is an internal structure schematic diagram of a garbage incineration gas detection device described in the utility model.

[0019] In the figure: 1. Cooling structure; 11. Box body; 12. Serpentine pipe; 13. Circulating water cooling pipe; 2. Air inlet pipe; 21. Dust collection port; 22. First valve; 3. Smoke exhaust pipe; 4. Filtering structure; 41. Dust collection box; 42. Dustproof net; 43. Dust removal port; 44. Second sealing cover; 5. Detection box; 51. Dustproof cover; 52. Cleaning port; 53. First sealing cover; 54. Detector; 6. Connecting pipe; 7. Air outlet pipe; 71. Air outlet fan; 72. Second valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3, in the embodiments proposed in this application: A garbage incineration gas detection device is used for detecting the gas in the smoke exhaust pipe 3 of garbage incineration. It includes a cooling structure 1. On the left side of the cooling structure 1, there is an air inlet pipe 2. One end of the air inlet pipe 2 is connected to the smoke exhaust pipe 3, and the other end is inserted into the left side of the cooling structure 1 and communicated with it. A first valve 22 is provided at the position of the air inlet pipe 2 corresponding to the smoke exhaust pipe 3. In the middle of the air inlet pipe 2, a filtering structure 4 is communicated. On the upper side of the cooling structure 1, there is a detection box 5. The detection box 5 is electrically connected to an external terminal system to view the detection results in real time. The right side of the cooling structure 1 is communicated with the detection box 5 through a connecting pipe 6. A dust-proof cover 51 is provided in the detection box 5 corresponding to the connecting pipe 6. A cleaning port 52 is opened on the left side of the detection box 5. A first sealing cover 53 is hinged at the cleaning port 52. A detector 54 is provided in the detection box 5. The detector 54 is arranged on the first sealing cover 53, which is convenient for the subsequent maintenance work of the detector 54. The detector 54 is electrically connected to an external terminal system. The top of the detection box 5 is communicated with an air outlet pipe 7. The end of the air outlet pipe 7 is connected to the smoke exhaust pipe 3. A second valve 72 is provided at the position of the air outlet pipe 7 corresponding to the smoke exhaust pipe 3. When detection is not carried out, the second valve 72 can be closed to prevent the dust in the smoke exhaust pipe 3 from flowing back. An air outlet fan 71 is provided at the top of the detection box 5 corresponding to the air outlet pipe 7.

[0022] When the flue gas enters the air inlet pipe 2, it can be filtered by the filtering structure 4 to reduce the dust in the flue gas from entering the cooling structure 1. At the same time, a dust-proof cover 51 is provided in the detection box 5 to further filter the dust, ensuring the detection effect of the detection box 5. And a first sealing cover 53 is provided on the left side of the detection box 5, which can clean the inside of the detection box 5 and the dust-proof cover after detection to ensure normal detection below. At the same time, both the air inlet pipe 2 and the connecting pipe 6 are inserted, and they can be disassembled, cleaned or replaced regularly to ensure the normal operation of the equipment. Here, the external terminal system and the connection method with the detection box 5 are all prior arts.

[0023] In another embodiment, please refer to Figures 1-3 , the cooling structure 1 includes a box body 11. Inside the box body 11, there is a serpentine pipe 12. The left end of the serpentine pipe 12 is inserted into the box body 11 corresponding to the air inlet pipe 2 and communicated with it. The right end is inserted into the box body 11 corresponding to the connecting pipe 6 and communicated with it. At both ends of the box body 11, there are circulating water cooling pipes 13 respectively. The circulating water cooling pipes 13 are connected to an external water cooling circulation system;

[0024] Due to the water cooling setting, and a filtering structure 4 is provided before the water cooling, the dust in the flue gas entering the serpentine pipe 12 is greatly reduced, avoiding a large amount of dust from pre-condensing on the inner wall of the pipe, affecting the heat dissipation of the flue gas and subsequent detection work. At the same time, the serpentine pipe 12 is inserted, and it can be disassembled, cleaned or replaced regularly to ensure the normal operation of the equipment.

[0025] In another embodiment, please refer toFigures 1-3 The filtering structure 4 includes a dust collecting box 41, a dust collecting port 21 is provided at the lower middle part of the air inlet pipe 2, the top of the dust collecting box 41 is fixed at the dust collecting port 21 and is connected thereto, a dustproof net 42 is provided at the right height of the air inlet pipe 2 corresponding to the dust collecting box 41, a dust removal port 43 is provided on the left wall of the dust collecting box 41, a second sealing cover 44 is hingedly provided at the dust removal port 43, the air inlet pipe 2 is recessed downward corresponding to the dust collecting box 41, a detector 54 is provided in the detection box 5, the detector 54 is provided on the first sealing cover 53, and the detector 54 is electrically connected to the external terminal system;

[0026] When conducting smoke detection, first open the first valve 22 and the second valve 72, and turn on the air outlet fan 71 to sample the smoke in the smoke exhaust pipe 3, and suck the smoke into the serpentine tube 12 of the cooling structure through the air intake pipe 2. Since the setting of the filtering structure 4 cooperates with the recessed setting of the air intake pipe 2, during air intake, larger and heavier smoke will slide down into the dust box 41 by gravity, and the dustproof net 42 will further filter the smoke. The smoke filtered onto the dustproof net 42 can slide into the dust box 41 by gravity, and after the detection, the dust box 41 and the dustproof net 42 can be cleaned by opening the second sealing cover 44 to ensure normal use next time.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A garbage incineration gas detection device for detecting the gas in the smoke exhaust pipe (3) of garbage incineration, characterized in that: It includes a cooling structure (1). An air inlet pipe (2) is provided on the left side of the cooling structure (1). One end of the air inlet pipe (2) is communicated with a smoke exhaust pipe (3), and the other end is inserted into the left side of the cooling structure (1) and communicated with it. A first valve (22) is provided at the position of the air inlet pipe (2) corresponding to the smoke exhaust pipe (3). A filtering structure (4) is communicated and provided in the middle of the air inlet pipe (2). A detection box (5) is provided on the upper side of the cooling structure (1). The detection box (5) is electrically connected to an external terminal system. The right side of the cooling structure (1) is communicated with the detection box (5) through a connecting pipe (6). A dust-proof cover (51) is provided in the detection box (5) corresponding to the connecting pipe (6). A cleaning port (52) is opened on the left side of the detection box (5). A first sealing cover (53) is hinged at the cleaning port (52). An air outlet pipe (7) is communicated and provided at the top of the detection box (5). The end of the air outlet pipe (7) is communicated with the smoke exhaust pipe (3). An air outlet fan (71) is provided at the position of the air outlet pipe (7) corresponding to the top of the detection box (5).

2. The waste incineration gas detection device according to claim 1, characterized in that, The cooling structure (1) includes a box body (11). A serpentine pipe (12) is provided inside the box body (11). The left end of the serpentine pipe (12) is inserted into the box body (11) corresponding to the air inlet pipe (2) and communicated with it. The right end is inserted into the box body (11) corresponding to the connecting pipe (6) and communicated with it. Circulating water cooling pipes (13) are respectively provided at both ends of the box body (11). The circulating water cooling pipes (13) are communicated with an external water cooling circulation system.

3. The garbage incineration gas detection device according to claim 1, characterized in that, The filtering structure (4) includes a dust collection box (41). A dust collection port (21) is opened on the lower side of the middle of the air inlet pipe (2). The top of the dust collection box (41) is fixed at the dust collection port (21) and communicated with it. A dust-proof net (42) is provided at the height on the right side of the dust collection box (41) inside the air inlet pipe (2). A dust removal port (43) is opened on the left side wall of the dust collection box (41). A second sealing cover (44) is hinged at the dust removal port (43).

4. The garbage incineration gas detection device according to claim 3, characterized in that, The air inlet pipe (2) is recessed downward at the position corresponding to the dust collection box (41).

5. The garbage incineration gas detection device according to claim 1, characterized in that, A detector (54) is provided in the detection box (5). The detector (54) is provided on the first sealing cover (53). The detector (54) is electrically connected to an external terminal system.

6. The garbage incineration gas detection device according to claim 1, characterized in that A second valve (72) is provided at the position of the air outlet pipe (7) corresponding to the smoke exhaust pipe (3).

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