Pretreatment structure of flue gas analysis instrument

Abstract

The utility model discloses a pretreatment structure of a flue gas analysis instrument, which belongs to the technical field of flue gas detection equipment and comprises a dehumidification box, a rectangular opening is formed in the surface of the dehumidification box and communicated with an inner cavity of the dehumidification box, a moisture absorption component used for absorbing moisture in flue gas is arranged in an inner cavity of the rectangular opening, and the moisture absorption component is communicated with the inner cavity of the dehumidification box. One end of the dehumidification box is provided with a smoke suction assembly, the other end of the dehumidification box is communicated with a connecting pipe, the other end of the connecting pipe is communicated with a dust removal box, the other end of the dust removal box is provided with a connecting port used for being connected with a smoke analysis instrument, and an inner cavity of the dust removal box is provided with a filtering assembly used for filtering dust particles in smoke. A heating pipe for heating and drying the flue gas is arranged in an inner cavity of the dehumidification box, so that moisture and dust particles in the flue gas are filtered, the service life of the flue gas analysis instrument is prolonged, dust is prevented from interfering a detection result of the flue gas analysis instrument, and the working quality of the flue gas analysis instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke detection equipment, in particular to a preprocessing structure of a smoke analysis instrument. Background Art

[0002] Flue gas analyzers are devices that use electrochemical sensors to continuously analyze and measure the flue gas content of CO2, CO, NOx, SO2, etc. They are mainly used for handheld monitoring of pollution emissions from small fuel and gas boilers or the environment near pollution sources. According to the way of use, they can be divided into handheld flue gas analyzers and fixed-type line recording flue gas analyzers.

[0003] When using traditional flue gas analyzers, they generally inhale flue gas for detection through a detection tube. Since the flue gas contains moisture and dust particles, the detection tube inhales moisture for a long time and is easily corroded by moisture, resulting in a decrease in the service life of the flue gas analyzer. At the same time, when there are many dust particles in the flue gas, it is easy to interfere with the detection results of the flue gas analyzer, resulting in a decrease in the working quality of the flue gas analyzer.

[0004] According to the publication number: CN220251902U, a flue gas analyzer is provided, including a housing, a first telescopic rod and a detection box, the inner wall of the housing is installed with the detection box, the inner wall of the housing is installed with the first telescopic rod, the output end of the first telescopic rod is installed with a support plate, the bottom of the support plate is installed with a motor, and the output end of the motor is installed with a cleaning block. The utility model realizes the effect of quickly cleaning the detection box of the flue gas analyzer to prevent smoke from adhering and improve the analysis accuracy by installing a cleaning block, a support plate and a blocking plate. The movement of the support plate drives the movement of the motor, and the movement of the motor drives the movement of the cleaning block. The movement of the cleaning block allows it to enter the interior of the detection box. At this time, the motor starts to drive the cleaning block to rotate. While the cleaning block rotates, the first telescopic rod moves slowly. The rotation of the cleaning block allows the interior of the detection box to be quickly cleaned to prevent smoke from adhering, thereby realizing the function of quickly cleaning the detection box of the flue gas analyzer to prevent fire smoke from adhering and improve the analysis accuracy.

[0005] According to the flue gas analyzer introduced above, the detection tube absorbs moisture for a long time and is easily corroded by moisture, resulting in a decrease in the service life of the flue gas analyzer. At the same time, when there are many dust particles in the flue gas, it is easy to interfere with the detection results of the flue gas analyzer, resulting in a decrease in the working quality of the flue gas analyzer. Therefore, we need to propose a preprocessing structure for the flue gas analyzer. Utility Model Content

[0006] The purpose of the utility model is to provide a pretreatment structure of a flue gas analyzer, which heats and dries the flue gas in the inner cavity of the dehumidification box by setting a heating tube, absorbs moisture in the dried flue gas by setting a moisture absorption component, and increases the dehumidification effect of the flue gas, and filters dust particles in the flue gas by setting a filtering structure, thereby filtering moisture and dust particles in the flue gas, thereby increasing the service life of the flue gas analyzer, avoiding dust interference with the detection results of the flue gas analyzer, and improving the working quality of the flue gas analyzer, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pretreatment structure of a flue gas analyzer, comprising a dehumidification box, a rectangular opening is provided on the surface of the dehumidification box, the rectangular opening is connected to the inner cavity of the dehumidification box, the inner cavity of the rectangular opening is provided with a moisture absorption component for absorbing moisture in the flue gas, a smoking component is installed at one end of the dehumidification box, the other end of the dehumidification box is connected to a connecting pipe, the other end of the connecting pipe is connected to a dust removal box, the other end of the dust removal box is provided with a connecting port for connecting to a flue gas analyzer, the inner cavity of the dust removal box is provided with a filtering component for filtering dust particles in the flue gas, and the inner cavity of the dehumidification box is provided with a heating tube for heating and drying the flue gas.

[0008] Preferably, the desiccant assembly includes a collection box, which is located in the inner cavity of the rectangular opening, and the bottom end of the collection box is slidably connected to the inner cavity of the dehumidification box. One end of the collection box away from the rectangular opening is fixedly connected to a fixing plate, and the other end of the fixing plate is fixedly connected to a pull rod. The collection box is hollowed out, and the inner cavity of the collection box is filled with several groups of desiccant bags.

[0009] Preferably, a sealing ring is bonded around the outer surface of the fixing plate, and the outer surface of the sealing ring is interference fit with the inner wall of the rectangular opening.

[0010] Preferably, the smoking assembly comprises a smoking pipe, one end of which is connected to the inner cavity of the dehumidification box, and a blower fan is installed in the inner cavity of the smoking pipe.

[0011] Preferably, the filter assembly includes a filter frame, which is fixedly connected to the inner cavity of the dust removal box. The inner cavity of the filter frame is slidably inserted with a dustproof plate, and a groove is provided at a position on the surface of the dustproof plate corresponding to the surface of the dust removal box. The other end of the dustproof plate passes through the dust removal box and is fixedly connected to a fixed structure.

[0012] Preferably, the fixing structure includes a positioning plate and a fixing frame, the surface of the positioning plate is engaged with the inner cavity of the fixing frame, the inner wall of the positioning plate is rotatably connected to the surface of the filter plate through a rotating shaft, and the fixing frame is fixedly connected to the outer surface of the dust removal box.

[0013] Preferably, a slider is fixedly connected to the bottom end of the collection box, a slot is provided on the slider surface at a position corresponding to the inner wall of the dehumidification box, and the slider surface is slidably connected to the inner cavity of the slot of the dehumidification box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a pretreatment structure of a flue gas analyzer, which starts a heating tube to heat and dry the flue gas in the inner cavity of a dehumidification box, absorbs moisture in the dried flue gas through the setting of a moisture absorption component, and increases the dehumidification effect of the flue gas, and filters dust particles in the flue gas through the setting of a filtering structure, thereby filtering moisture and dust particles in the flue gas, thereby increasing the service life of the flue gas analyzer, avoiding dust from interfering with the detection result of the flue gas analyzer, and improving the working quality of the flue gas analyzer.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model where the collecting box and the dustproof plate are removed;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model from a top view;

[0020] Figure 4 It is a structural schematic diagram of a local cross-sectional structure of the utility model.

[0021] In the figure: 1. Dehumidification box; 2. Rectangular opening; 3. Moisture absorption component; 31. Collection box; 32. Fixed plate; 33. Pull rod; 34. Desiccant bag; 4. Smoking component; 41. Smoking pipe; 42. Supply fan; 5. Connecting pipe; 6. Dust removal box; 7. Connecting port; 8. Filter component; 81. Filter frame; 82. Dustproof plate; 83. Fixed structure; 831. Positioning plate; 832. Fixed frame; 9. Heating tube; 10. Sealing ring; 11. Slider. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a pretreatment structure of a flue gas analyzer, comprising a dehumidification box 1, a rectangular opening 2 is provided on the surface of the dehumidification box 1, the rectangular opening 2 is connected to the inner cavity of the dehumidification box 1, a moisture absorption component 3 for absorbing moisture in the flue gas is provided in the inner cavity of the rectangular opening 2, a smoking component 4 is installed at one end of the dehumidification box 1, a connecting pipe 5 is connected to the other end of the dehumidification box 1, the other end of the connecting pipe 5 is connected to a dust removal box 6, the other end of the dust removal is provided with a connecting port 7 for connecting to the flue gas analyzer, the inner cavity of the dust removal box 6 is provided with a filter component 8 for filtering dust particles in the flue gas, and the inner cavity of the dehumidification box 1 is provided with a heating pipe 9 for heating and drying the flue gas;

[0024] Connect the connecting port 7 to the detection tube of the flue gas analyzer, start the smoking component 4 to suck the flue gas into the inner cavity of the dehumidification box 1, start the heating tube 9 to heat and dry the flue gas, and through the setting of the moisture absorption component 3, assist in absorbing the moisture in the flue gas. Then the flue gas enters the dust removal box 6 through the connecting tube 5, and the dust particles are filtered through the filtering component 8 and then enter the detection tube through the connecting port 7, thereby filtering the moisture and dust particles in the flue gas, thereby improving the service life of the flue gas analyzer, avoiding dust from interfering with the detection results of the flue gas analyzer, and improving the working quality of the flue gas analyzer.

[0025] The desiccant assembly 3 includes a collecting box 31, which is located in the inner cavity of the rectangular opening 2. The bottom end of the collecting box 31 is slidably connected to the inner cavity of the dehumidification box 1. One end of the collecting box 31 away from the rectangular opening 2 is fixedly connected to a fixing plate 32, and the other end of the fixing plate 32 is fixedly connected to a pull rod 33. The collecting box 31 is hollowed out, and the inner cavity of the collecting box 31 is filled with several groups of desiccant bags 34. Through the arrangement of several groups of desiccant bags 34, moisture in the flue gas is absorbed. The collecting box 31 is slidably connected to the inner cavity of the dehumidification box 1, which facilitates the staff to replace the desiccant bags 34.

[0026] A sealing ring 10 is bonded around the outer surface of the fixing plate 32, and the outer surface of the sealing ring 10 is interference fit with the inner wall of the rectangular opening 2. Through the setting of the sealing ring 10, the sealing between the fixing plate 32 and the rectangular opening 2 is improved when the collecting box 31 is closed.

[0027] The smoking assembly 4 includes a smoking pipe 41, one end of which is connected to the inner cavity of the dehumidification box 1. A supply fan 42 is installed in the inner cavity of the smoking pipe 41. Starting the supply fan 42 provides a driving force to discharge the smoke into the inner cavity of the dehumidification box 1 through the smoking pipe 41.

[0028] The filter assembly 8 includes a filter frame 81, which is fixedly connected to the inner cavity of the dust removal box 6. A dustproof plate 82 is inserted and slidably connected to the inner cavity of the filter frame 81. A groove is provided on the surface of the dustproof plate 82 at a position corresponding to the surface of the dust removal box 6. The other end of the dustproof plate 82 passes through the dust removal box 6 and is fixedly connected to a fixing structure 83. The dust particles in the flue gas are fixed by the dustproof plate 82. The dustproof plate 82 is inserted and slidably connected to the inner cavity of the dust removal box 6, and the fixing of the dustproof plate 82 is cancelled by rotating the fixing structure 83. Then, the dustproof plate 82 can be directly pulled out to clean the dust on the dustproof plate 82.

[0029] The fixing structure 83 includes a positioning plate 831 and a fixing frame 832. The surface of the positioning plate 831 is engaged with the inner cavity of the fixing frame 832. The inner wall of the positioning plate 831 is rotatably connected to the surface of the filter plate through a rotating shaft. The fixing frame 832 is fixedly connected to the outer surface of the dust removal box 6. The positioning plate 831 is rotated to move one end of the positioning plate 831 to the inner cavity of the fixing frame 832 to fix the position of the dustproof plate 82 on the filter frame 81. When the positioning plate 831 is moved out of the inner cavity of the fixing frame 832, the fixation of the dustproof plate 82 can be cancelled and the dustproof plate 82 can be disassembled.

[0030] The bottom end of the collection box 31 is fixedly connected with a slider 11, and a notch is provided at a position on the surface of the slider 11 corresponding to the inner wall of the dehumidification box 1. The surface of the slider 11 is slidably connected with the inner cavity of the notch of the dehumidification box 1. Through the setting of the slider 11, the auxiliary collection box 31 slides in the inner cavity of the dehumidification box 1 to prevent the collection box 31 from shaking inside the dehumidification box 1.

[0031] When in use, the connection port 7 is connected to the detection tube, the supply fan 42 is started to provide driving force to suck the smoke into the inner cavity of the dehumidification box 1 through the smoke pipe 41, the heating tube 9 is started to heat and dry the smoke, and the desiccant bag 34 absorbs the moisture in the smoke, and then the smoke enters the dust removal box 6 through the connecting tube 5, and the dust particles in the smoke are filtered through the dustproof plate 82, thereby filtering the moisture and dust particles in the smoke, prolonging the service life of the smoke analyzer, avoiding dust from interfering with the detection results of the smoke analyzer, and improving the working quality of the smoke analyzer;

[0032] During replacement, pulling the pull rod 33 can drive the collection box 31 to move out of the inner cavity of the dehumidification box 1, and replace the desiccant bag 34 in the inner cavity of the collection box 31. After replacement, push the pull rod 33 to move the collection box 31 to the inner cavity of the dehumidification box 1, and at the same time rotate the positioning plate 831 to move it out of the inner cavity of the fixed frame 832, cancel the fixation of the dustproof plate 82, pull out the dustproof plate 82 for cleaning, and after cleaning, insert the dustproof plate 82 into the inner cavity of the dustproof frame, and then rotate the positioning plate 831 to move it to the inner cavity of the fixed frame 832 to complete the fixation of the dustproof plate 82 and complete the installation.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pretreatment structure of a flue gas analysis instrument, comprising a dehumidification box (1), characterized in that: The surface of the dehumidification box (1) is provided with a rectangular opening (2), the rectangular opening (2) is connected to the inner cavity of the dehumidification box (1), the inner cavity of the rectangular opening (2) is provided with a moisture absorption component (3) for absorbing moisture in the flue gas, a smoking component (4) is installed at one end of the dehumidification box (1), the other end of the dehumidification box (1) is connected to a connecting pipe (5), the other end of the connecting pipe (5) is connected to a dust removal box (6), the other end of the dust removal box is provided with a connecting port (7) for connecting to a flue gas analysis instrument, the inner cavity of the dust removal box (6) is provided with a filtering component (8) for filtering dust particles in the flue gas, and the inner cavity of the dehumidification box (1) is provided with a heating pipe (9) for heating and drying the flue gas.

2. The preprocessing structure of a flue gas analysis instrument according to claim 1, characterized in that: The moisture absorption component (3) comprises a collection box (31), the collection box (31) is located in the inner cavity of the rectangular opening (2), the bottom end of the collection box (31) is slidably connected to the inner cavity of the dehumidification box (1), one end of the collection box (31) away from the rectangular opening (2) is fixedly connected to a fixing plate (32), and the other end of the fixing plate (32) is fixedly connected to a pull rod (33), the collection box (31) is hollowed out, and the inner cavity of the collection box (31) is filled with a plurality of groups of desiccant bags (34).

3. The preprocessing structure of a flue gas analysis instrument according to claim 2 is characterized in that: A sealing ring (10) is bonded around the outer surface of the fixing plate (32), and the outer surface of the sealing ring (10) is interference-fitted with the inner wall of the rectangular opening (2).

4. The preprocessing structure of a flue gas analysis instrument according to claim 1, characterized in that: The smoking assembly (4) comprises a smoking pipe (41), one end of which is in communication with the inner cavity of the dehumidification box (1), and a blower fan (42) is installed in the inner cavity of the smoking pipe (41).

5. The preprocessing structure of a flue gas analysis instrument according to claim 1, characterized in that: The filter assembly (8) comprises a filter frame (81), the filter frame (81) is fixedly connected to the inner cavity of the dust removal box (6), a dustproof plate (82) is inserted and slidably connected to the inner cavity of the filter frame (81), a notch is provided on the surface of the dustproof plate (82) at a position corresponding to the surface of the dust removal box (6), and the other end of the dustproof plate (82) passes through the dust removal box (6) and is fixedly connected to a fixing structure (83).

6. The preprocessing structure of a flue gas analysis instrument according to claim 5, characterized in that: The fixing structure (83) comprises a positioning plate (831) and a fixing frame (832); the surface of the positioning plate (831) is engaged with the inner cavity of the fixing frame (832); the inner wall of the positioning plate (831) is rotatably connected to the surface of the filter plate via a rotating shaft; and the fixing frame (832) is fixedly connected to the outer surface of the dust removal box (6).

7. The preprocessing structure of a flue gas analysis instrument according to claim 2, characterized in that: The bottom end of the collection box (31) is fixedly connected to a slider (11), a slot is provided on the surface of the slider (11) at a position corresponding to the inner wall of the dehumidification box (1), and the surface of the slider (11) is slidably connected to the inner cavity of the slot of the dehumidification box (1).

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