Chemical waste gas chlorination gas direct sampling type on-line analyzer

Abstract

The application relates to the technical field of gas-direct sampling type online analyzers, in particular to a chemical waste gas chlorination gas-direct sampling type online analyzer, which comprises a gas-direct sampling type online analyzer and a protective cover. A dust removal mechanism is arranged on the front face of the gas-direct sampling type online analyzer. The dust removal mechanism comprises sliding rails and a solenoid valve which is opened and closed at a fixed time, so that compressed air in a gas storage tank is converted into a high-speed pulse airflow and discharged through a spray head, dust on the surface of a filter screen is blown off and falls into a dust falling groove, dust blockage of the filter screen is avoided, airflow stagnation is caused, an acceleration sensor senses a weight decrease of a dust shielding plate, signals are fed back to a microcontroller, the microcontroller controls a fan to be turned on, the fan introduces wind into a blowing main pipe and a horizontal pipe, and the wind is blown into the front face of a display screen from top to bottom through a gas blowing groove which is obliquely arranged on the horizontal pipe, so that the function of automatically blowing dust off the screen of the display screen is achieved, and the dust shielding plate covers the display screen, so that dust adhesion is avoided.

Description

Technical Field

[0001] This application relates to the technical field of direct-source online analyzers for gas, and in particular to a direct-source online analyzer for chlorine gas in chemical waste gas. Background Technology

[0002] In processes such as chlor-alkali manufacturing and polyvinyl chloride (PVC) production, leaks or abnormal concentrations of chlorine gas can lead to safety accidents such as explosions and equipment corrosion. For example, a mixture of chlorine and hydrogen in a specific ratio poses an explosion risk, while excessively high HCl concentrations accelerate pipeline corrosion and shorten equipment lifespan. Online analyzers can monitor gas concentrations in real time, providing data support for process adjustments, reducing safety risks, and improving production efficiency.

[0003] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks:

[0004] The air intake pipe of the direct-source online analyzer is equipped with a filter screen to intercept dust, but over time, dust can easily clog the mesh, causing poor airflow.

[0005] Therefore, in response to the above problems, the applicant provides an online analyzer for direct sampling of chlorine gas in chemical waste gas. Utility Model Content

[0006] To address the problems mentioned in the background section, this application provides an online analyzer for direct sampling of chlorine gas in chemical waste gas.

[0007] This application provides an online analyzer for direct sampling of chlorine gas in chemical waste gas, which adopts the following technical solution:

[0008] A direct-source online analyzer for chlorine gas in chemical waste includes a direct-source online analyzer and a protective cover. The direct-source online analyzer has a dust removal mechanism on its front side. The dust removal mechanism includes a slide rail, a slide bar slidably connected to the slide rail, and a dust shield fixedly connected to the slide bar. A fan is installed on the protective cover.

[0009] The back of the direct-source online analyzer is equipped with a dust blowing mechanism, which includes an air storage tank. A main air pipe is installed on the flange at the outlet of the air storage tank. The main air pipe is connected to the air inlet of a solenoid valve. A branch air pipe is connected to the air outlet of the solenoid valve. A nozzle is fixedly connected to one end of the branch air pipe.

[0010] Optionally, a display screen is embedded in the front of the direct-sampling online analyzer. Two slide rails are fixedly connected to both sides of the display screen and to the direct-sampling online analyzer. Slide strips are slidably connected to the two slide rails. A dust cover is fixedly connected to the two slide strips. The front of the dust cover is provided with concave and convex textures. The dust cover is attached to the display screen.

[0011] Optionally, an acceleration sensor is fixedly connected to the front of the dust cover, and a protective cover is fixedly connected to the front of the dust cover and below the acceleration sensor. The fan is bolted to the bottom of the protective cover, and a blower main pipe is connected to the air outlet flange of the fan. A horizontal pipe is fixedly connected to the blower main pipe, and an air blowing groove with a blowing function for blowing air onto the dust cover is opened at an angle on the horizontal pipe.

[0012] Optionally, the back of the direct-sampling online analyzer is equipped with an air inlet port and an air outlet port. The air inlet port has an inclined hole, in which a filter screen is inserted. A dust collection trough is fixedly connected to half of the air inlet port.

[0013] Optionally, the direct-sampling online analyzer is fixedly connected to a gas storage tank on the back, the gas storage tank is located above the air inlet port, and air outlets are provided on both sides of the solenoid valve. Two rows of branch air pipes are fixedly connected to the air outlets of the solenoid valve, and nozzles are fixedly connected to multiple branch air pipes. The nozzles are located above the filter screen.

[0014] Optionally, the solenoid valve is electrically connected to the controller, the controller is installed on the direct sampling online analyzer, and a clamping plate is snapped into the bottom of the dust collection trough. Bolts are threaded into the four corners of the clamping plate and rotated into the dust collection trough.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This utility model uses a solenoid valve to open and close at regular intervals, thereby converting compressed air in the air tank into a high-speed pulsed airflow that is discharged through the nozzle. This removes dust from the surface of the filter screen and blows it into the dust collection trough, thus preventing dust from clogging the filter screen and causing airflow obstruction.

[0017] 2. This utility model uses an accelerometer to detect when the weight of the dust cover decreases and sends a signal to a microcontroller. The microcontroller then controls the fan to turn on, and the fan introduces air into the main blowing pipe and the horizontal pipe. The air is then blown from top to bottom into the front of the display screen through the air blowing slots set at an angle on the horizontal pipe, thereby automatically blowing off the dust from the display screen. The dust cover also covers the display screen to prevent dust from adhering. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the dust removal mechanism in the embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the dust removal mechanism structure in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the rear view structure in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the dust blowing mechanism in the embodiments of this application;

[0023] Figure 6 This is a cross-sectional view of the dust blowing mechanism in an embodiment of this application.

[0024] Reference numerals in the attached diagram: 1. Direct-source online analyzer; 2. Slide rail; 3. Slide bar; 4. Dust shield; 5. Accelerometer sensor; 6. Protective cover; 7. Fan; 8. Main air pipe; 9. Horizontal pipe; 10. Air inlet port; 11. Air outlet port; 12. Air storage tank; 13. Main air pipe; 14. Solenoid valve; 15. Branch air pipe; 16. Nozzle; 17. Filter screen; 18. Dust collection trough; 19. Card plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses an online analyzer for direct sampling of chlorine gas in chemical waste gas.

[0027] like Figure 1-6 As shown, a direct-source online analyzer for chlorine gas in chemical waste includes a direct-source online analyzer 1 and a protective cover 6. The direct-source online analyzer 1 has a dust removal mechanism on its front side. The dust removal mechanism includes a slide rail 2, a slide bar 3 slidably connected to the slide rail 2, and a dust shield 4 fixedly connected to the slide bar 3. A fan 7 is installed on the protective cover 6.

[0028] The back of the direct-source online analyzer 1 is equipped with a dust blowing mechanism, which includes an air storage tank 12. A main air pipe 13 is installed on the flange at the air outlet of the air storage tank 12. The main air pipe 13 is connected to the air inlet of a solenoid valve 14. A branch air pipe 15 is connected to the air outlet of the solenoid valve 14. A nozzle 16 is fixedly connected to one end of the branch air pipe 15.

[0029] Please see Figure 1 The direct-sampling online analyzer 1 has a display screen embedded in its front. Two slide rails 2 are fixedly connected to the display screen on both sides of the direct-sampling online analyzer 1. Sliding strips 3 are slidably connected to the two slide rails 2. Dust cover 4 is fixedly connected to the two sliding strips 3. The front of the dust cover 4 is provided with concave and convex textures. The dust cover 4 is attached to the display screen. The display screen is shown in the figure but not marked. When the user needs to use or view the display screen, he only needs to hold the concave and convex textures and push the dust cover 4 upward. The sliding strips 3 will move upward in a straight line in the slide rails 2. After viewing or using the display screen, the dust cover 4 is released and automatically falls down under the action of gravity.

[0030] Please see Figure 1 An accelerometer sensor 5 is fixedly connected to the front of the dust cover 4. A protective cover 6 is fixedly connected to the front of the dust cover 4 and below the accelerometer sensor 5. The fan 7 is bolted to the bottom of the protective cover 6. The air outlet flange of the fan 7 is connected to a blower pipe 8. A horizontal pipe 9 is fixedly connected to the blower pipe 8. An air blowing groove with a blowing function is obliquely opened on the horizontal pipe 9 to blow air onto the dust cover 4. Both the fan 7 and the accelerometer sensor 5 are externally powered, and their strokes are controlled by a microcontroller. When the accelerometer sensor 5 senses the decrease in weight of the dust cover 4, it feeds back a signal to the microcontroller. The microcontroller controls the fan 7 to turn on. The fan 7 introduces air into the blower pipe 8 and the horizontal pipe 9, and blows it from top to bottom into the front of the display screen through the air blowing groove set obliquely on the horizontal pipe 9, thereby automatically blowing off the dust on the display screen. Although the air blowing groove is not drawn, it is clear from its description that the oblique setting of the air blowing groove can blow air onto the surface of the display screen to complete the dust removal.

[0031] Please see Figure 4 and Figure 6 The back of the direct-sampling online analyzer 1 is equipped with an air inlet port 10 and an air outlet port 11. An oblique hole is provided on the air inlet port 10, and a filter screen 17 is fitted into the oblique hole. A dust collection trough 18 is fixedly connected to half of the air inlet port 10. (See attached diagram of this manual.) Figure 6 The direction indicated by the middle arrow is the direction in which the gas enters, indicating that the dust is intercepted and adheres to the filter screen 17.

[0032] Please see Figure 6 The direct-sampling online analyzer 1 has a gas storage tank 12 fixedly connected to its back. The gas storage tank 12 is located above the air inlet port 10. The solenoid valve 14 has an air outlet on both sides. The air outlet of the solenoid valve 14 is fixedly connected to two rows of branch air pipes 15. The multiple branch air pipes 15 are fixedly connected to nozzles 16, which are located above the filter screen 17.

[0033] Please see Figure 5 The solenoid valve 14 is electrically connected to the controller, which is installed on the direct-sampling online analyzer 1. The bottom of the dust collection trough 18 is fitted with a clamping plate 19. Bolts are threaded at the four corners of the clamping plate 19 and rotated into the dust collection trough 18. The controller is not shown in the figure. The controller mainly controls the solenoid valve 14 to open and close at a time, thereby converting the compressed air in the air tank 12 into a high-speed pulse airflow and discharging it through the nozzle 16, thereby peeling off the dust on the surface of the filter screen 17 and blowing it into the dust collection trough 18. The clamping plate 19 is installed with bolts to facilitate the dust collection.

[0034] The implementation principle of the direct sampling online analyzer for chlorine gas in chemical waste gas according to the embodiments of this application is as follows:

[0035] When the accelerometer 5 senses the decrease in weight of the dust cover 4, it sends a signal to the microcontroller. The microcontroller then controls the fan 7 to turn on. The fan 7 introduces air into the blower tube 8 and the horizontal tube 9, and blows it from top to bottom into the front of the display screen through the inclined air duct of the horizontal tube 9, thereby automatically blowing off the dust from the display screen.

[0036] The solenoid valve 14 opens and closes at regular intervals, thereby converting the compressed air in the air tank 12 into a high-speed pulse airflow that is discharged through the nozzle 16, thereby stripping the dust from the surface of the filter screen 17 and blowing it into the dust collection trough 18.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A direct-sampling online analyzer for chlorine gas in chemical waste gas, characterized in that: It includes a direct-source online analyzer (1) and a protective cover (6). The direct-source online analyzer (1) has a dust removal mechanism on its front. The dust removal mechanism includes a slide rail (2). The slide rail (2) is slidably connected to a slide bar (3). The slide bar (3) is fixedly connected to a dust shield (4). A fan (7) is installed on the protective cover (6). The back of the direct-source online analyzer (1) is provided with a dust blowing mechanism, which includes an air storage tank (12). A main air pipe (13) is installed on the flange of the air outlet end of the air storage tank (12). The main air pipe (13) is connected to the air inlet of a solenoid valve (14). The air outlet of the solenoid valve (14) is connected to a branch air pipe (15). One end of the branch air pipe (15) is fixedly connected to a nozzle (16).

2. The online analyzer for direct sampling of chlorine gas in chemical waste gas according to claim 1, characterized in that: The front of the direct sampling online analyzer (1) is embedded with a display screen. Two slide rails (2) are fixedly connected to the two sides of the display screen and to the direct sampling online analyzer (1). Slide strips (3) are slidably connected to the two slide rails (2). Dust shields (4) are fixedly connected to the two slide strips (3). The front of the dust shields (4) is provided with embossed texture. The dust shields (4) are attached to the display screen.

3. The online analyzer for direct sampling of chlorine gas in chemical waste gas according to claim 1, characterized in that: An accelerometer (5) is fixedly connected to the front of the dust cover (4). A protective cover (6) is fixedly connected to the front of the dust cover (4) and below the accelerometer (5). The fan (7) is bolted to the bottom of the protective cover (6). The air outlet flange of the fan (7) is connected to a blower pipe (8). A horizontal pipe (9) is fixedly connected to the blower pipe (8). An air blowing groove for blowing air onto the dust cover (4) is obliquely opened on the horizontal pipe (9).

4. The online analyzer for direct sampling of chlorine gas in chemical waste gas according to claim 1, characterized in that: The back of the direct sampling online analyzer (1) is equipped with an air inlet port (10) and an air outlet port (11). The air inlet port (10) is provided with an inclined hole, and a filter screen (17) is inserted into the inclined hole. A dust collection trough (18) is fixedly connected to half of the air inlet port (10).

5. The online analyzer for direct sampling of chlorine gas in chemical waste gas according to claim 1, characterized in that: The direct-sampling online analyzer (1) has a gas storage tank (12) fixedly connected to its back. The gas storage tank (12) is located above the air inlet port (10). The solenoid valve (14) has an air outlet on both sides. The air outlet of the solenoid valve (14) is fixedly connected to two rows of branch air pipes (15). The multiple branch air pipes (15) are fixedly connected to nozzles (16). The nozzles (16) are located above the filter screen (17).

6. The online analyzer for direct sampling of chlorine gas in chemical waste gas according to claim 4, characterized in that: The solenoid valve (14) is electrically connected to the controller, which is installed on the direct sampling online analyzer (1). The bottom of the dust collection trough (18) is fitted with a clamping plate (19), and bolts are threaded at the four corners of the clamping plate (19) and rotated into the dust collection trough (18).

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