Sulfur dioxide analyzer adopting ultraviolet fluorescence method

Abstract

The utility model relates to the technical field of sulfur dioxide analyzers, and discloses an ultraviolet fluorescence method sulfur dioxide analyzer which comprises an analyzer shell, a sealing door piece is arranged on the front face of the analyzer shell, an inner light detection device is arranged in the analyzer shell, and a light source is arranged in the inner light detection device. An exhaust treatment device is arranged on the surface of the internal light detection device, and the internal light detection device comprises a light-transmitting grating, a sliding frame, a mounting plate block, an internal light detection sensor, a connecting cable, an audible and visual alarm, an ultraviolet detection lamp, a connecting wire, a power supply piece and a reflection grating. According to the sulfur dioxide analyzer adopting the ultraviolet fluorescence method, the internal light detection device and the internal light detection sensor are arranged to detect the light source intensity of the ultraviolet detection lamp at the moment, and when the light intensity is reduced to a critical value influencing normal detection, a signal is transmitted to the audible and visual alarm through the connecting cable; and the audible and visual alarm gives an alarm to prompt a worker to change a lamp, so that long-term stable work of the instrument is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur dioxide analyzers, in particular to an ultraviolet fluorescence sulfur dioxide analyzer. Background Art

[0002] The sulfur dioxide analyzer based on ultraviolet fluorescence method is a special instrument used to monitor the SO2 content in the atmosphere. It is developed using the principle of ultraviolet fluorescence method.

[0003] The prior art discloses a sulfur dioxide analyzer based on ultraviolet fluorescence method with publication number: CN214224945U, which includes a mounting plate, a shell, a cushion block, a clamping mechanism, a mounting seat, an analyzer body, an ultraviolet lamp, a power cord and a control switch, wherein the front end surface of the mounting plate is fixedly connected to the shell, the bottom of the shell is connected to the cushion block, and the middle side of the shell is fixedly connected to the cushion block. The utility model optimizes the clamping mechanism, and when the air in the bottle needs to be detected and analyzed, the bottle is placed inside the roller and the power roller, and then the screw is rotated to lock with the internal thread block, so that the roller on the sliding plate moves toward the power roller under the action of the sliding plate, and the bottle is clamped inside the roller and the power roller, and then the power roller is rotated by the driving motor to drive the bottle to rotate inside the roller, so as to realize the rotation of the bottle, thereby improving the analysis accuracy of sulfur dioxide.

[0004] The above-mentioned sulfur dioxide analyzer drives the motor to rotate the power roller, which can drive the bottle to rotate inside the roller, thereby realizing the rotation of the bottle, and further improving the analysis accuracy of sulfur dioxide. However, after the ultraviolet detection zinc lamp in the above-mentioned device works for a long time, the light intensity of the zinc lamp will change, and the trend is that the light intensity gradually decays. The above-mentioned device is not equipped with a detection component. After long-term use, the internal detection intensity decreases, but there is no way to know when it decreases to the critical value that affects normal detection, resulting in the replacement of the lamp relying entirely on the staff's guesswork, and the effect is not good during use, which needs to be improved. Utility Model Content

[0005] The utility model aims to provide an ultraviolet fluorescence sulfur dioxide analyzer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultraviolet fluorescence sulfur dioxide analyzer, comprising an analysis instrument housing, a sealing door is provided on the front of the analysis instrument housing, an internal light detection device is provided inside the analysis instrument housing, and an exhaust gas treatment device is provided on the surface of the internal light detection device.

[0007] The internal light detection device includes a translucent grating, a slide, a mounting plate, an internal light detection sensor, a connecting cable, an audible and visual alarm, an ultraviolet detection lamp, a connecting wire, a power supply and a reflective grating. The translucent grating is fixedly connected to the inner back side of the analytical instrument housing, the slide is fixedly connected to both sides of the inner wall of the analytical instrument housing, the internal light detection sensor is connected to the inside of the mounting plate, the connecting cable is fixedly connected to the side of the internal light detection sensor, the ultraviolet detection lamp is fixedly connected to the inside of the analytical instrument housing near the back, the connecting wire is fixedly connected to the side of the ultraviolet detection lamp, and the power supply is fixedly connected to the inner back side of the analytical instrument housing.

[0008] Preferably, the exhaust treatment device includes an inner connecting frame, a guide tube and a negative pressure fan component, the inner connecting frame is fixedly connected to the side of the light-transmitting grating, the guide tube is fixedly connected to the top of the inner connecting frame, a connecting groove is opened inside the inner connecting frame, and the negative pressure fan component is fixedly connected to the bottom of the inner connecting frame.

[0009] Preferably, one end of the connecting cable away from the side of the internal light detection sensor is fixedly connected to the bottom of the sound and light alarm.

[0010] Preferably, the width of the mounting plate is matched to the inner diameter of the slide, and the mounting plate is slidably connected to the inside of the slide.

[0011] Preferably, the right side of the mounting plate is slidably connected to the left side of the light-transmitting grating.

[0012] Preferably, one end of the connecting wire away from the side of the ultraviolet detection lamp is fixedly connected to the side of the power supply unit, and the reflection grating is fixedly connected to the top of the reflection grating. The connecting wire serves to electrically connect the ultraviolet detection lamp and the power supply unit, and also serves to transmit power.

[0013] Preferably, the sound and light alarm is fixedly connected to the inner sides of the analytical instrument housing near the top, and the sound and light alarm is electrically connected to the internal light detection sensor through a connecting cable. When the light intensity drops to a critical value that affects normal detection, a signal is transmitted to the sound and light alarm through the connecting cable, and then the sound and light alarm is used to remind the staff to change the light, thereby ensuring the long-term stable operation of the instrument, acting as an alarm, and conveniently reminding the staff.

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

[0015] 1. The ultraviolet fluorescence sulfur dioxide analyzer is equipped with an internal light detection device. The internal light detection sensor detects the light intensity of the ultraviolet detection lamp at this time. When the light intensity is reduced to a critical value that affects normal detection, the signal is transmitted to the sound and light alarm through the connecting cable, and then the sound and light alarm is used to remind the staff to change the lamp, thereby ensuring the long-term stable operation of the instrument.

[0016] 2. The ultraviolet fluorescence sulfur dioxide analyzer is provided with an exhaust gas treatment device, which is located below the light-transmitting grating and the power supply unit. It generates negative pressure suction to help absorb the heat generated when the power supply unit is working, and the wind force generated below can help the sulfur dioxide introduced into the interior to flow, thereby increasing the flow speed and facilitating the analysis and judgment of all gases. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model when viewed from above;

[0019] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 4 This is a schematic diagram of the internal top view structure of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0022] In the figure: 1. Analytical instrument housing; 2. Sealing door; 3. Internal light detection device; 301. Transparent grating; 302. Slide; 303. Mounting plate; 304. Internal light detection sensor; 305. Connecting cables; 306. Sound and light alarm; 307. Ultraviolet detection lamp; 308. Connecting wires; 309. Power supply; 310. Reflective grating; 4. Exhaust treatment device; 401. Internal connecting frame; 402. Guide tube; 403. Negative pressure fan parts. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5, the utility model provides the following technical solutions:

[0025] An ultraviolet fluorescence sulfur dioxide analyzer comprises an analyzer housing 1, a sealing door 2 is arranged on the front of the analyzer housing 1, an internal light detection device 3 is arranged inside the analyzer housing 1, and an exhaust treatment device 4 is arranged on the surface of the internal light detection device 3.

[0026] The internal light detection device 3 includes a translucent grating 301, a slide 302, a mounting plate 303, an internal light detection sensor 304, a connecting cable 305, an audible and visual alarm 306, an ultraviolet detection lamp 307, a connecting wire 308, a power supply 309 and a reflective grating 310. The translucent grating 301 is fixedly connected to the inner back side of the analytical instrument housing 1, the slide 302 is fixedly connected to both sides of the inner wall of the analytical instrument housing 1, the internal light detection sensor 304 is connected to the inside of the mounting plate 303, the connecting cable 305 is fixedly connected to the side of the internal light detection sensor 304, the ultraviolet detection lamp 307 is fixedly connected to the inside of the analytical instrument housing 1 near the back, the connecting wire 308 is fixedly connected to the side of the ultraviolet detection lamp 307, the power supply 309 is fixedly connected to the inner back side of the analytical instrument housing 1, the audible and visual alarm 306 is fixedly connected to both sides of the inside of the analytical instrument housing 1 near the top, and the audible and visual alarm 306 is electrically connected to the analytical instrument housing 1 through the connecting cable 305. At the internal light detection sensor 304, when the light intensity is reduced to a critical value that affects normal detection, a signal is transmitted to the sound and light alarm 306 through the connecting cable 305, and then the sound and light alarm 306 alarm prompts the staff to change the lamp, thereby ensuring the long-term stable operation of the instrument and playing the role of an alarm, which is convenient for reminding the staff. The end of the connecting cable 305 away from the side of the internal light detection sensor 304 is fixedly connected to the bottom of the sound and light alarm 306, the width of the mounting plate 303 is adapted to the inner diameter of the slide 302, the mounting plate 303 is slidably connected to the inside of the slide 302, and the right side of the mounting plate 303 is slidably connected to the left side of the light-transmitting grating 301, the end of the connecting wire 308 away from the side of the ultraviolet detection lamp 307 is fixedly connected to the side of the power supply 309, and the reflection grating 310 is fixedly connected to the top of the reflection grating 310. The connecting wire 308 serves to electrically connect the ultraviolet detection lamp 307 and the power supply 309, and also serves to transmit power.

[0027] The exhaust treatment device 4 includes an inner connecting frame 401, a guide tube 402 and a negative pressure fan component 403. The inner connecting frame 401 is fixedly connected to the side of the light-transmitting grating 301, the guide tube 402 is fixedly connected to the top of the inner connecting frame 401, a connecting groove is opened inside the inner connecting frame 401, and the negative pressure fan component 403 is fixedly connected to the bottom of the inner connecting frame 401.

[0028] When in use, an internal light detection device 3 is arranged inside the analytical instrument housing 1. The main structure of the internal light detection device 3 is a light-transmitting grating 301 and a reflective grating 310. When in use, the ultraviolet detection lamp 307 can be started, and then the filtering method of the light-transmitting grating 301 is used to replace the original interference filter, which has achieved good results and can help the light source to diffuse and better analyze and process. Then, part of the light passes through the light-transmitting grating 301 to penetrate to the bottom for detection, and another part hits the reflective grating 310 for reflection and reaches the internal light detection sensor 304. The internal light detection sensor 304 detects the ultraviolet light at this time. The light intensity of the measuring lamp 307 is detected. When the light intensity is reduced to a critical value that affects normal detection, a signal is transmitted to the sound and light alarm 306 through the connecting cable 305, and then the sound and light alarm 306 alarm prompts the staff to change the lamp, thereby ensuring the long-term stable operation of the instrument and having a good effect during use. An exhaust treatment device 4 is provided inside, which is located below the light-transmitting grating 301 and the power supply unit 309, and a negative pressure suction force is generated to help absorb the heat generated by the power supply unit 309 when it is working. The wind force generated below can help the sulfur dioxide introduced into the interior to flow, thereby increasing the flow speed for easy analysis and judgment of all gases.

[0029] Although the 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. An ultraviolet fluorescence sulfur dioxide analyzer, comprising an analyzer housing (1), characterized in that: A sealing door (2) is provided on the front of the analytical instrument housing (1), an internal light detection device (3) is provided inside the analytical instrument housing (1), and an exhaust gas treatment device (4) is provided on the surface of the internal light detection device (3); The internal light detection device (3) comprises a light-transmitting grating (301), a carriage (302), a mounting plate (303), an internal light detection sensor (304), a connecting cable (305), an audible and visual alarm (306), an ultraviolet detection lamp (307), a connecting wire (308), a power supply (309) and a reflective grating (310), wherein the light-transmitting grating (301) is fixedly connected to the inner back side of the analytical instrument housing (1), the carriage (302) is fixedly connected to both sides of the inner wall of the analytical instrument housing (1), the internal light detection sensor (304) is connected to the inside of the mounting plate (303), the connecting cable (305) is fixedly connected to the side of the internal light detection sensor (304), the ultraviolet detection lamp (307) is fixedly connected to the inside of the analytical instrument housing (1) near the back side, the connecting wire (308) is fixedly connected to the side of the ultraviolet detection lamp (307), and the power supply (309) is fixedly connected to the inner back side of the analytical instrument housing (1).

2. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: The exhaust gas treatment device (4) comprises an inner connecting frame (401), a guide tube (402) and a negative pressure fan component (403); the inner connecting frame (401) is fixedly connected to the side of the light-transmitting grating (301); the guide tube (402) is fixedly connected to the top of the inner connecting frame (401); a connecting groove is provided inside the inner connecting frame (401); and the negative pressure fan component (403) is fixedly connected to the bottom of the inner connecting frame (401).

3. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: One end of the connection cable (305) away from the side of the internal light detection sensor (304) is fixedly connected to the bottom of the sound and light alarm (306).

4. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: The width of the mounting plate (303) is adapted to the inner diameter of the slide (302), and the mounting plate (303) is slidably connected to the interior of the slide (302).

5. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: The right side of the installation plate (303) is slidably connected to the left side of the light-transmitting grating (301).

6. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: One end of the connecting wire (308) away from the side of the ultraviolet detection lamp (307) is fixedly connected to the side of the power supply unit (309), and the reflection grating (310) is fixedly connected to the top of the reflection grating (310).

7. The ultraviolet fluorescence sulfur dioxide analyzer according to claim 1, characterized in that: The sound and light alarm (306) is fixedly connected to both sides of the interior of the analytical instrument housing (1) close to the top, and the sound and light alarm (306) is electrically connected to the internal light detection sensor (304) via a connecting cable (305).

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