A flue gas concentration detection device

Abstract

This utility model discloses a flue gas concentration detection device, including a main body of an online dust monitoring instrument installed on a substrate to be tested, a front shell fixed to the front end of the main body of the online dust monitoring instrument, a transparent observation window embedded in the front surface of the front shell, and a twisting cleaning structure set on the front shell. The flue gas concentration detection device of this application cleverly solves the problems of condensation on the inner side of the transparent observation window of traditional online dust monitoring instruments, which affects observation and is difficult to clean, by designing a twisting cleaning structure on the front shell. When condensation on the inner side of the transparent observation window obstructs the view, the operator no longer needs to remove the entire front shell for cleaning as in the traditional way. Simply by twisting the twisting block, the screw is rotated, which causes the brush strip on the inner side of the front shell to move up and down, so as to effectively wipe and clean the inner side of the transparent observation window and quickly restore a clear field of view.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas concentration detection technology, and specifically relates to a flue gas concentration detection device. Background Technology

[0002] As an important environmental monitoring device, the online dust monitoring instrument adopts mainstream laser backscattering measurement technology to continuously monitor the concentration of particulate matter emitted from various pollution sources. It can also be equipped with a continuous flue gas monitoring system to provide environmental protection departments and enterprises with scientific and accurate monitoring data, enabling timely adjustments to production processes and the implementation of effective pollution control measures, thereby reducing pollutant emissions and protecting the environment. Currently, existing online dust monitoring instruments typically feature a transparent viewing window on their front-end casing. This design allows operators to directly observe the various values ​​displayed on the front-end instrument through the transparent viewing window, thus promptly grasping key information such as flue gas concentration.

[0003] However, in practical applications, online dust monitors need to operate continuously for extended periods and are often situated in complex industrial environments, making them susceptible to both time and environmental factors. As the operating time increases, the temperature and humidity differences between the inside and outside of the front-end housing gradually widen, leading to condensation on the inner side of the transparent viewing window. This phenomenon is particularly pronounced in industrial settings with high humidity and frequent temperature fluctuations, such as chemical and metallurgical industries. The condensed water vapor forms a blurry film on the inner side of the transparent viewing window, severely obstructing the operator's view. Traditional online dust monitors require operators to periodically disassemble the entire front-end housing to clean the inner side of the window, a cumbersome and time-consuming process that can damage the front-end housing and internal monitoring equipment, affecting the device's normal operation and lifespan. Therefore, this invention proposes a flue gas concentration detection device. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas concentration detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas concentration detection device, comprising a main body of an online flue gas monitoring instrument mounted on a substrate to be tested, a front shell fixed to the front end of the main body of the online flue gas monitoring instrument and covering the instrument on the front surface of the main body of the online flue gas monitoring instrument inside, a transparent observation window embedded in and mounted on the front surface of the front shell and matching the position of the instrument on the front surface of the main body of the online flue gas monitoring instrument, and further comprising...

[0006] The rotating cleaning structure on the front end housing includes a brush strip slidably mounted on the inner wall of the front end housing and located at the bottom of the transparent viewing window, a sponge strip embedded in the inner surface of the brush strip and corresponding to the transparent viewing window, a screw rotatably mounted on the top of the brush strip, and a nut seat fixed on the top surface of the front end housing. The top end of the screw passes through the inside of the nut seat and extends to the top of the front end housing. A rotating block is fixed to the top end of the screw relative to the top of the nut seat.

[0007] Preferably, guide sliders are fixed to both ends of the brush strip, and guide grooves for the guide sliders to slide are provided on both sides of the inner wall of the front end shell relative to the transparent observation window. The guide sliders slide in the guide grooves.

[0008] Preferably, the screw is threadedly connected to the nut seat.

[0009] Preferably, a sealing washer is fitted between the top surface of the screw and the nut seat and the turning block.

[0010] Preferably, the bottom surface of the sealing gasket is provided with an integral annular sealing protrusion, and the top surface of the nut seat is provided with an annular sealing groove corresponding to the annular sealing protrusion, and the annular sealing protrusion is embedded in the annular sealing groove.

[0011] Preferably, the cross-section of the annular sealing protrusion is semi-circular, and the cross-section of the annular sealing groove is rectangular.

[0012] Preferably, the circumferential surface of the twisting block has a plurality of anti-slip protrusions evenly distributed.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The flue gas concentration detection device of this application cleverly solves the problems of condensation affecting observation and cleaning difficulties on the inner side of the transparent observation window of traditional flue gas online monitoring instruments by designing a twisting cleaning structure on the front end shell. When condensation obstructs the view on the inner side of the transparent observation window, the operator no longer needs to remove the entire front end shell for cleaning as in the traditional method. Simply by twisting the twisting block, the screw is rotated, which causes the brush strip on the inner side of the front end shell to move up and down, effectively wiping and cleaning the inner side of the transparent observation window, quickly restoring a clear field of view, ensuring that the operator can normally observe the values ​​on the monitoring instrument panel, and ensuring the continuity and accuracy of flue gas concentration monitoring. This innovative design greatly improves the ease of use of the equipment, reduces equipment downtime, and lowers maintenance costs and labor intensity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the inner side of the front shell of this utility model;

[0016] Figure 3 This is a cross-sectional view of the twisting cleaning structure of this utility model;

[0017] Figure 4 This is a top sectional view of the connection between the brush strip and the front shell of this utility model;

[0018] Figure 5 This is a partial enlarged view of region A in the soil of this utility model;

[0019] In the diagram: 1. Main body of the online dust monitoring instrument; 2. Front end shell; 3. Transparent observation window; 4. Test substrate; 51. Nut seat; 511. Annular sealing groove; 52. Sealing gasket; 521. Annular sealing protrusion; 53. Tightening block; 54. Screw; 55. Brush strip; 56. Guide groove; 57. Guide slider; 58. Sponge strip. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1 to 4 This is the first embodiment of the present invention, which provides the following technical solution: a flue gas concentration detection device, including a flue gas online monitoring instrument body 1 installed on the substrate 4 to be tested, a front shell 2 fixed to the front end of the flue gas online monitoring instrument body 1 and covering the instrument on the front surface of the flue gas online monitoring instrument body 1 inside, and a transparent observation window 3 embedded in the front surface of the front shell 2 and matching the position of the instrument on the front surface of the flue gas online monitoring instrument body 1. In this solution, the structure and principle of the flue gas online monitoring instrument body 1 itself are existing technologies. For specific structural principles, please refer to the existing patent with publication number CN210834582U. It will not be elaborated here. Alternatively, mature products on the market can be purchased directly, such as the flue gas online monitoring instrument with model number LBT2000(A). During daily monitoring, the operator can observe the values ​​on the instrument on the front surface of the flue gas online monitoring instrument body 1 through the transparent observation window 3, so as to conveniently and timely grasp the concentration detection value of the flue gas in the substrate 4 to be tested.

[0023] Also includes

[0024] The rotating cleaning structure on the front housing 2 includes a brush strip 55 slidably mounted on the inner wall of the front housing 2 and located at the bottom of the transparent viewing window 3; a sponge strip 58 embedded in the inner surface of the brush strip 55 and corresponding to the transparent viewing window 3; a screw 54 rotatably mounted on the top of the brush strip 55; and a nut seat 51 fixed to the top surface of the front housing 2. The top of the screw 54 passes through the inside of the nut seat 51 and extends to the top of the front housing 2. A rotating block 53 is fixed to the top of the screw 54 relative to the top of the nut seat 51. When the operator rotates the rotating block 53, the screw 54 moves up and down with the brush strip 55 due to the thread action. When the brush strip 55 moves up and down, the sponge strip 58 slides into contact with the transparent viewing window 3. The up and down movement of the brush strip 55 and the sponge strip 58 can effectively wipe and clean the moisture on the inner surface of the transparent viewing window 3, quickly restoring a clear viewing field of vision. Unlike traditional methods, the entire front housing 2 no longer needs to be removed for cleaning, improving the convenience of subsequent maintenance.

[0025] In this embodiment, preferably, guide sliders 57 are fixed on both ends of the brush strip 55, and guide grooves 56 are provided on both sides of the inner wall of the front end shell 2 relative to the transparent observation window 3 for the guide sliders 57 to slide. The guide sliders 57 slide in the guide grooves 56, which can support and guide the brush strip 55 to ensure the stable up and down movement of the brush strip 55.

[0026] In this embodiment, preferably, the screw 54 is threadedly connected to the nut seat 51, so that the screw 54 can be rotated and screwed smoothly.

[0027] In this embodiment, preferably, a sealing washer 52 is also provided between the top surface of the screw 54 and the nut seat 51 and the screwing block 53, so that after the screwing block 53 and the screw 54 are screwed down and tightened, the sealing washer 52 can be squeezed and sealed between the screwing block 53 and the nut seat 51.

[0028] In this embodiment, preferably, multiple anti-slip protrusions are evenly distributed on the circumferential surface of the twisting block 53, which can effectively prevent slippage when the operator rotates and twists the twisting block 53 by hand.

[0029] Example 2

[0030] Please see Figures 1 to 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, except that the bottom surface of the sealing gasket 52 is provided with an integral annular sealing protrusion 521. Both are made of fluororubber and will undergo elastic deformation when compressed. The top surface of the nut seat 51 is provided with an annular sealing groove 511 corresponding to the annular sealing protrusion 521, and the annular sealing protrusion 521 is embedded in the annular sealing groove 511, which can further increase the sealing effect of the sealing gasket 52.

[0031] In this embodiment, preferably, the cross-section of the annular sealing protrusion 521 is semi-circular. The semi-circular cross-section design makes it easy for the annular sealing protrusion 521 to be squeezed into the annular sealing groove 511. The cross-section of the annular sealing groove 511 is rectangular.

[0032] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas concentration detection device, comprising a flue gas online monitoring instrument body (1) mounted on a substrate (4) to be tested, a front end shell (2) fixed to the front end of the flue gas online monitoring instrument body (1) and covering the instrument on the front surface of the flue gas online monitoring instrument body (1) inside, and a transparent observation window (3) embedded in the front surface of the front end shell (2) and matching the position of the instrument on the front surface of the flue gas online monitoring instrument body (1), characterized in that: Also includes The rotating cleaning structure set on the front end housing (2) includes a brush strip (55) slidably mounted on the inner wall of the front end housing (2) and located at the bottom of the transparent observation window (3), a sponge strip (58) embedded in the inner surface of the brush strip (55) and corresponding to the transparent observation window (3), a screw (54) rotatably mounted on the top of the brush strip (55), and a nut seat (51) fixed on the top surface of the front end housing (2). The top end of the screw (54) passes through the inside of the nut seat (51) and extends to the top of the front end housing (2). A rotating block (53) is fixed to the top end of the screw (54) relative to the top of the nut seat (51).

2. The flue gas concentration detection device according to claim 1, characterized in that: The brush strip (55) has guide sliders (57) fixed on both ends of its surface. The inner wall of the front end shell (2) has guide grooves (56) on both sides of the transparent observation window (3) for the guide sliders (57) to slide. The guide sliders (57) slide in the guide grooves (56).

3. The flue gas concentration detection device according to claim 1, characterized in that: The screw (54) is threadedly connected to the nut seat (51).

4. The flue gas concentration detection device according to claim 1, characterized in that: A sealing washer (52) is also fitted between the top surface of the screw (54) and the nut seat (51) and the screwing block (53).

5. The flue gas concentration detection device according to claim 4, characterized in that: The bottom surface of the sealing gasket (52) is provided with an integral annular sealing protrusion (521), and the top surface of the nut seat (51) is provided with an annular sealing groove (511) corresponding to the annular sealing protrusion (521), and the annular sealing protrusion (521) is embedded in the annular sealing groove (511).

6. The flue gas concentration detection device according to claim 5, characterized in that: The cross-section of the annular sealing protrusion (521) is semi-circular, and the cross-section of the annular sealing groove (511) is rectangular.

7. The flue gas concentration detection device according to claim 1, characterized in that: The circumferential surface of the twisting block (53) is evenly distributed with multiple anti-slip ridges.

Images