A chlorine sulfur analyzer
By purifying the exhaust gas of the coulometric analyzer through a filter cartridge, a chemical adsorbent layer, and an ozone treatment system, the problem of exhaust gas pollution is solved, and efficient sample detection and automated sample delivery are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 海口海关技术中心
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
AI Technical Summary
The existing coulometric instruments, when used, directly release the waste gas generated after the sample gas detection, which pollutes the air and affects environmental protection.
The waste gas is initially filtered using a filter cartridge and a chemical adsorbent layer. Ozone generated by an ozone generator is mixed with the waste gas to oxidize and decompose harmful substances. Harmless gases are then discharged through a purification tank and an exhaust pipe. An automated sample delivery system is used to improve detection efficiency.
It effectively purifies exhaust gas, prevents air pollution, and improves detection efficiency and automation.
Smart Images

Figure CN224500509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chlorine and sulfur analyzer technology, specifically a chlorine and sulfur analyzer. Background Technology
[0002] The coulometric analyzer (chlorine-sulfur analyzer) adopts the principle of dynamic coulometric method. When the sample is burned in the conversion tube and undergoes a redox reaction, it is carried into the titration cell by the carrier gas for titration. The amount of electricity consumed in the electrolytic titration process is measured. According to Faraday's law, the sulfur and chlorine content of the sample can be calculated. The coulometric analyzer (chlorine-sulfur analyzer) is widely used in the analysis of total sulfur or total chlorine content of samples in production, scientific research and monitoring fields such as petroleum, petrochemical, pharmaceutical, health, environmental protection, coal, geology, metallurgy, commodity inspection, quality inspection, and schools.
[0003] Existing coulometric analyzers generate waste gas after sample gas detection, which can easily pollute the air if directly released into the atmosphere, thus harming the environment. Therefore, we propose a chlorine-sulfur analyzer to address the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a chlorine-sulfur analyzer to solve the problem mentioned in the background art: existing coulometric analyzers generate waste gas after sample gas detection, which can easily pollute the air if directly discharged into the air, thus harming environmental protection.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a chlorine-sulfur analyzer, comprising a housing, a filter box installed on one side of the housing, a filter cylinder installed on one side of the lower part of the filter box, a chemical adsorbent layer installed inside the filter box, a purification tank installed on the upper part of the filter box, the filter box being connected to the purification tank via a third gas supply pipe, an ozone generator installed on the top of the purification tank, ozone pipes installed on both sides of the ozone generator, multiple sets of gas outlet holes evenly arranged on the lower outer wall of the ozone pipes, and an exhaust pipe installed on one side of the top of the purification tank, the exhaust pipe penetrating the housing and connecting to the outside.
[0006] Preferably, a combustion chamber is installed at the top of the housing, a first gas pump is installed at the bottom of the combustion chamber, a first gas supply pipe is installed on one side of the first gas pump, a detection pool is installed on the other side of the housing, and the other end of the first gas supply pipe is connected to the interior of the detection pool.
[0007] Preferably, a detection electrode is installed at the top of the detection cell, the bottom of the detection electrode extends into the interior of the detection cell, reference electrodes are installed on both sides of the detection cell through the housing, and the interior of the detection cell contains an electrolyte.
[0008] Preferably, a second air pump is installed at the front end of the upper part of the detection pool, a second air pipe is installed on one side of the second air pump, and the other end of the second air pipe is connected to the filter cylinder.
[0009] Preferably, multiple sets of baffles are installed above the interior of the purification tank, and the multiple sets of baffles are installed at a downward angle and arranged in an alternating manner.
[0010] Preferably, a fixed base is installed on the top of the housing, the rear end of the fixed base is hollow, a first drive motor is installed on the inner top of the fixed base, a turntable is installed on the output shaft of the first drive motor, a rotating column is installed on the top of the turntable, multiple sets of placement slots are provided on the front end of the fixed base, the multiple sets of placement slots are arranged in a ring, and a feed pipe is installed on one side inside the fixed base, the bottom of the feed pipe is connected to the inside of the combustion chamber.
[0011] Preferably, the interior of the rotating column is a hollow structure, and threaded rods are rotatably connected to both sides inside the rotating column. A second drive motor is installed on the top of one of the threaded rods on one side. A lifting plate is threadedly connected to the outer wall of the threaded rod, and a sampler is installed at the bottom of the lifting plate. A reserved hole is provided at the bottom of the rotating column, and the reserved hole and the sampler are located on the same vertical axis.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) This utility model uses a filter cartridge to initially filter particulate matter in the exhaust gas, and uses a chemical adsorbent layer to synergistically adsorb different types of harmful components in the sample gas. The ozone generated by the ozone generator is evenly released through the outlet of the ozone pipe and fully mixed with the exhaust gas. The strong oxidizing property of ozone can oxidize and decompose the residual harmful substances into harmless substances. Finally, the purified gas is discharged from the box through the exhaust pipe. This solves the problem that when the existing coulometric instrument is used, exhaust gas will be generated after the sample gas detection is completed. If this exhaust gas is directly discharged into the air, it will easily cause air pollution and is not conducive to environmental protection.
[0014] (2) The first drive motor drives the turntable and rotating column to rotate, so that the sampler is aligned with the target placement slot. The second drive motor drives the lifting plate to descend, and the sampler takes out the sample through the reserved hole. Then, the first drive motor drives the sampler to align with the feed pipe, and the sample is sent into the combustion chamber through the feed pipe, realizing the automatic switching and transportation of multiple samples and improving the detection efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 1 ;
[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 2 ;
[0019] In the diagram: 1. Housing; 2. Combustion chamber; 3. First gas pump; 4. First gas supply pipe; 5. Detection tank; 6. Detection electrode; 7. Reference electrode; 8. Second gas pump; 9. Second gas supply pipe; 10. Filter cartridge; 11. Filter box; 12. Chemical adsorbent layer; 13. Third gas supply pipe; 14. Purification tank; 15. Ozone generator; 16. Ozone pipeline; 17. Gas outlet; 18. Exhaust pipe; 19. Baffle plate; 20. Fixed base; 21. First drive motor; 22. Turntable; 23. Rotating column; 24. Threaded rod; 25. Second drive motor; 26. Lifting plate; 27. Sampler; 28. Reserved hole; 29. Placement slot; 30. Feed pipe. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figure 1-4 One embodiment of this utility model is a chlorine-sulfur analyzer, including a housing 1. Please refer to [link / reference]. Figure 3 and Figure 4 A fixed base 20 is installed on the top of the housing 1. The rear end of the fixed base 20 is hollow. A first drive motor 21 is installed on the top inner part of the fixed base 20. A turntable 22 is installed on the output shaft of the first drive motor 21. A rotating column 23 is installed on the top of the turntable 22. Multiple placement slots 29 are provided at the front end of the fixed base 20, and the multiple placement slots 29 are arranged in a ring. A feed pipe 30 is installed on one side inside the fixed base 20, and the bottom of the feed pipe 30 is connected to the interior of the combustion chamber 2. Please refer to [link / reference]. Figure 2 and Figure 3The interior of the rotating column 23 is hollow. Threaded rods 24 are rotatably connected to both sides inside the rotating column 23. A second drive motor 25 is installed on the top of one of the threaded rods 24 on one side. A lifting plate 26 is threadedly connected to the outer wall of the threaded rod 24. A sampler 27 is installed at the bottom of the lifting plate 26. A reserved hole 28 is provided at the bottom of the rotating column 23. The reserved hole 28 and the sampler 27 are located on the same vertical axis. In use, the sample is placed inside the placement slot 29 of the fixed base 20. The first drive motor 21 drives the turntable 22 and rotating column 23 to rotate, aligning the sampler 27 with the target placement slot 29. The second drive motor 25 drives the threaded rod 24 on one side to rotate, causing the lifting plate 26 to descend. The top and bottom of the threaded rod 24 on the other side are rotatably connected to the rotating column 23. As the lifting plate 26 moves up and down, it drives the threaded rod 24 on the other side to rotate. The threaded rod 24 on the other side improves the stability of the lifting plate 26 during lifting and prevents the lifting plate 26 from rotating on its own. The sampler 27 removes the sample through the reserved hole 28. Then, the first drive motor 21 aligns the sampler 27 with the feed pipe 30, and the sample is sent into the combustion chamber 2 through the feed pipe 30, realizing automatic switching and transportation of multiple samples and improving detection efficiency. Please refer to [link to relevant documentation]. Figure 3 A combustion chamber 2 is installed at the top inside the housing 1. A first air pump 3 is installed at the bottom of the combustion chamber 2. A first air supply pipe 4 is installed on one side of the first air pump 3. A detection pool 5 is installed on the other side inside the housing 1. The other end of the first air supply pipe 4 is connected to the interior of the detection pool 5. Please refer to [link / reference]. Figure 3 A detection electrode 6 is installed at the top of the detection cell 5, and the bottom of the detection electrode 6 extends into the interior of the detection cell 5. Reference electrodes 7 are installed on both sides of the detection cell 5 through the housing 1. The interior of the detection cell 5 contains an electrolyte. The combustion chamber 2 performs high-temperature combustion on the sample, converting chlorine into hydrogen chloride (HCl) and sulfur into detectable gases such as sulfur dioxide (SO2), completing the speciation of the target elements in the sample and providing a stable sample gas for subsequent detection. The first gas pump 3 delivers the sample gas generated by combustion into the detection cell 5 through the first gas pipe 4. The electrolyte in the detection cell 5 is an ion-conducting medium. The detection electrode 6 and the reference electrode 7 form a detection system based on the coulometric principle. By measuring the changes in the electrolytic current corresponding to chlorine and sulfur ions in the sample gas, the content of chlorine and sulfur in the sample is accurately quantified. Please refer to [link to relevant documentation]. Figure 4A second air pump 8 is installed at the front end of the upper part of the detection pool 5. A second air supply pipe 9 is installed on one side of the second air pump 8, and the other end of the second air supply pipe 9 is connected to the filter cartridge 10. A filter box 11 is installed on one side inside the housing 1. A filter cartridge 10 is installed on the lower side of the filter box 11. A chemical adsorbent layer 12 is installed inside the filter box 11. A purification tank 14 is installed on the upper part of the filter box 11. The filter box 11 is connected to the purification tank 14 through a third air supply pipe 13. An ozone generator 15 is installed on the top inside the purification tank 14. Ozone pipes 16 are installed on both sides of the ozone generator 15. Multiple sets of air outlets 17 are evenly arranged on the lower outer wall of the ozone pipes 16. An exhaust pipe 18 is installed on one side of the top of the purification tank 14. The exhaust pipe 18 passes through the housing 1 and connects to the outside. The tested exhaust gas contains unreacted harmful components. The exhaust gas is pumped through the second gas delivery pump 8 and then through the second gas delivery pipe 9 into the filter cartridge 10 for preliminary filtration of particulate matter. It then enters the filter box 11, where a chemical adsorbent layer 12 is used. The lower layer of the chemical adsorbent layer 12 uses activated alumina to adsorb acidic gases, while the upper layer uses activated carbon impregnated with potassium permanganate, synergistically adsorbing different types of harmful components in the sample gas. The filtered exhaust gas enters the purification tank 14 through the third gas delivery pipe 13. Ozone generated by the ozone generator 15 is evenly released through the outlet 17 of the ozone pipe 16, mixing thoroughly with the exhaust gas. The strong oxidizing properties of ozone can oxidize and decompose residual harmful substances into harmless substances. Finally, the purified gas is discharged from the housing 1 through the exhaust pipe 18, avoiding direct emission of polluted air.
[0022] Please see Figure 3 Multiple sets of baffles 19 are installed on the upper part of the interior of the purification tank 14. The baffles 19 are installed at an angle downwards and are arranged in an alternating manner. The staggered arrangement of the inclined baffles 19 can effectively extend the residence time of exhaust gas, improve the exhaust gas purification efficiency, and at the same time prevent the discharge of incompletely purified exhaust gas.
[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A chlorine-sulfur analyzer, comprising a housing (1), characterized in that: A filter box (11) is installed on one side inside the housing (1). A filter cylinder (10) is installed on one side of the lower part of the filter box (11). A chemical adsorbent layer (12) is installed inside the filter box (11). A purification tank (14) is installed on the upper part of the filter box (11). The filter box (11) is connected to the purification tank (14) through a third gas supply pipe (13). An ozone generator (15) is installed on the top of the purification tank (14). Ozone pipes (16) are installed on both sides of the ozone generator (15). Multiple sets of air outlets (17) are evenly arranged on the lower outer wall of the ozone pipes (16). An exhaust pipe (18) is installed on one side of the top of the purification tank (14). The exhaust pipe (18) passes through the housing (1) and connects to the outside.
2. The chlorine-sulfur analyzer according to claim 1, characterized in that: A combustion chamber (2) is installed on the top of the box (1), a first gas pump (3) is installed at the bottom of the combustion chamber (2), a first gas pipe (4) is installed on one side of the first gas pump (3), a detection pool (5) is installed on the other side of the box (1), and the other end of the first gas pipe (4) is connected to the inside of the detection pool (5).
3. A chlorine-sulfur analyzer according to claim 2, characterized in that: The top of the detection pool (5) is equipped with a detection electrode (6), the bottom of the detection electrode (6) extends into the interior of the detection pool (5), and reference electrodes (7) are installed on both sides of the detection pool (5) through the housing (1). The interior of the detection pool (5) contains an electrolyte.
4. A chlorine-sulfur analyzer according to claim 3, characterized in that: A second air pump (8) is installed at the front end of the upper part of the detection pool (5). A second air pipe (9) is installed on one side of the second air pump (8). The other end of the second air pipe (9) is connected to the filter cylinder (10).
5. A chlorine-sulfur analyzer according to claim 1, characterized in that: Multiple sets of baffles (19) are installed on the upper part of the interior of the purification tank (14). The multiple sets of baffles (19) are installed at an downward angle and are arranged in an alternating manner.
6. A chlorine-sulfur analyzer according to claim 2, characterized in that: A fixed base (20) is installed on the top of the housing (1). The rear end of the fixed base (20) is hollow. A first drive motor (21) is installed on the top of the fixed base (20). A turntable (22) is installed on the output shaft of the first drive motor (21). A rotating column (23) is installed on the top of the turntable (22). Multiple placement slots (29) are provided at the front end of the fixed base (20). The multiple placement slots (29) are arranged in a ring. A feed pipe (30) is installed on one side of the inside of the fixed base (20). The bottom of the feed pipe (30) is connected to the inside of the combustion chamber (2).
7. A chlorine-sulfur analyzer according to claim 6, characterized in that: The interior of the rotating column (23) is hollow. Threaded rods (24) are rotatably connected to both sides of the interior of the rotating column (23). A second drive motor (25) is installed on the top of one of the threaded rods (24) on one side. A lifting plate (26) is threadedly connected to the outer wall of the threaded rod (24). A sampler (27) is installed at the bottom of the lifting plate (26). A reserved hole (28) is provided at the bottom of the rotating column (23). The reserved hole (28) and the sampler (27) are located on the same vertical axis.