TOC analyzer with anti-pollution calibration structure

Abstract

The invention discloses a TOC analyzer with an anti-pollution calibration structure, and belongs to the technical field of TOC analyzers, the TOC analyzer comprises a shell, a sealing cover, a follow-up sealing structure, a dust removal structure and a calibration mechanism, the front end of the shell is in shaft connection with the sealing cover, the sealing cover is provided with a visual window, the inner top surface of the shell is connected with a mounting frame, and the inner top surface of the mounting frame is connected with the follow-up sealing structure. A servo motor and a metering pump are installed in the installation frame, the end of the metering pump penetrates through the upper surface of the shell in a sealed mode, the shaft end of the servo motor is connected with an installation disc, and transparent liquid containing pipes are distributed on the installation disc at equal angles. According to the invention, dust and suspended matters in the shell can be removed before calibration, so that the dust and suspended matters can be prevented from influencing the calibration, the accuracy of subsequent detection is ensured, in addition, a worker can be prevented from frequently and manually taking, placing and washing the transparent liquid containing pipe, the rapid calibration is facilitated, and the calibration efficiency is improved. And the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of TOC analyzers, in particular to a TOC analyzer with an anti-pollution calibration structure. Background Art

[0002] With the acceleration of industrialization and the increase of human activities, water pollution has become more and more prominent. Various organic pollutants have entered the water, posing a serious threat to the ecological environment and human health. Therefore, accurate and rapid detection of the content of organic pollutants in water has become an important requirement for environmental monitoring, which has provided a strong impetus for the development of TOC analyzers.

[0003] The core of TOC analyzer is to oxidize organic carbon in water into carbon dioxide. Therefore, the development of oxidation reaction technology is crucial to the performance of TOC analyzer. Researchers are constantly exploring various efficient and accurate oxidation technologies, such as high-temperature catalytic combustion oxidation, ultraviolet oxidation, supercritical water oxidation, etc., to improve the efficiency and accuracy of TOC analysis.

[0004] The existing TOC analyzer still has the following technical problems when in use, such as:

[0005] 1. The existing TOC analyzer needs to be calibrated when in use. During the calibration process, it does not have an anti-pollution structure, which can easily cause dust and other suspended matter to affect the calibration, thereby affecting the results of subsequent tests;

[0006] 2. During the calibration process of the existing TOC analyzer, the test tube needs to be frequently taken out and flushed, which is not conducive to the rapid calibration of the TOC analyzer and increases the labor intensity of the staff;

[0007] Therefore, a TOC analyzer with an anti-pollution calibration structure is needed to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a TOC analyzer with an anti-pollution calibration structure to solve the problem mentioned in the background art that the existing TOC analyzer does not have an anti-pollution structure and cannot be calibrated quickly.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A TOC analyzer with an anti-pollution calibration structure comprises a shell, a sealing cover, a follow-up sealing structure, a dust removal structure and a calibration mechanism, wherein the front end shaft of the shell is connected to the sealing cover, and a visual window is arranged on the sealing cover, the inner top surface of the shell is connected to a mounting frame, and a servo motor and a metering pump are installed in the mounting frame, and the end seal of the metering pump passes through the upper surface of the shell, the shaft end of the servo motor is connected to a mounting disk, and transparent liquid containing tubes are distributed at equal angles on the mounting disk, the lower end of the transparent liquid containing tube is connected to the dust removal structure through the follow-up sealing structure, and the dust removal structure and the follow-up sealing structure are both connected to the calibration mechanism, a sampling tube with a valve is arranged on the shell, and the lower end seal of the sampling tube with a valve passes through the interior of the shell.

[0011] Preferably, the calibration mechanism includes a delivery pipe, a liquid storage box, a liquid inlet hole, a partition, a calibration liquid interval, a drain pipe and a liquid collecting tank, the delivery pipe is provided with two sections, and one end of the two delivery pipes is respectively connected to the input end and the output end of the metering pump, the other end of one of the two delivery pipes is sealed and penetrates into the interior of the shell, and the other end of the other delivery pipe is sealed and extends into the calibration liquid interval, the liquid storage box is fixedly installed at the rear end of the shell, and the calibration liquid interval is separated by a partition in the liquid storage box, the liquid storage box is provided with a liquid inlet hole passing through the inner and outer sides thereof, the interior of the shell is provided with a liquid collecting tank directly below the mounting plate, and the inner bottom end of the liquid collecting tank is connected with the drain pipe, and the drain pipe is provided on the lower surface of the shell.

[0012] Preferably, the dust removal structure includes an air intake pipe, an electronic valve 1, an air intake pipe, an electronic valve 2, an exhaust pipe, a dust collection liquid section, an exhaust frame pipe, an electronic valve 3, an air delivery tank, a piston disk, a limit rod, a spring and a connecting pipe. The liquid storage box is divided into a dust collection liquid section and a calibration liquid section by a partition, and one end of the air intake pipe is connected to the dust collection liquid section, the other end of the air intake pipe is connected to a section of the delivery pipe connected to the calibration liquid section, and the delivery pipe passes through a section inside the shell and is connected to one end of the air intake pipe, the portion where the air intake pipe and the delivery pipe are connected and the portion where the air intake pipe and the delivery pipe are connected are respectively installed with an electronic valve 2 and an electronic valve 1, and the other end of the air intake pipe One end is connected to the gas tank, and the gas tank is fixedly installed on the inner top surface of the shell, the interior of the gas tank is seamlessly and slidably connected with a piston disk, and three limit rods are arranged at equal angles on the lower surface of the piston disk, the lower end of the limit rod is seamlessly sealed and penetrates to the lower surface of the gas tank, a spring is arranged between the lower surface of the piston disk and the inner bottom surface of the gas tank, and the middle and lower parts of the gas tank are connected to the exhaust frame pipe through a connecting pipe, the exhaust frame pipe is fixedly installed on the inner top surface of the shell, one end of the exhaust pipe is connected to the drain pipe, and an electronic valve three is installed at the connection position of the exhaust pipe and the drain pipe, and the other end of the exhaust pipe penetrates to the inner bottom surface of the dust collection liquid interval.

[0013] Preferably, a one-way valve is provided at the portion where the dust collecting liquid interval and the exhaust pipe are connected, so as to allow the exhaust pipe to transport gas to the dust collecting liquid interval in one direction.

[0014] Preferably, exhaust holes are evenly arranged on the lower surface of the exhaust frame tube, and the axis of the exhaust frame tube is colinear with the axis of the mounting frame.

[0015] Preferably, the liquid storage box is provided with two liquid inlet holes, and the two liquid inlet holes are respectively connected to the dust collection liquid interval and the calibration liquid interval.

[0016] Preferably, the follow-up sealing structure includes an air collecting bin, an air guide pipe, a sealing plate, a blocking ball, a connecting rod, an air collecting tank, a connecting frame, a piston tube and a piston part, the outer side surface of the sealing plate is sealingly fixed to the inner side of the lower part of the transparent liquid collecting tube, and one end of the connecting rod is movably penetrated through the sealing plate, and a blocking ball is coaxially fixed on the end of the connecting rod extending into the transparent liquid collecting tube, the lower surface of the mounting plate is fixedly connected to the connecting frame, and the upper surface of the lower end of the connecting frame is coaxially provided with a piston tube, the lower end of the piston part is seamlessly slidably connected in the piston tube, and connecting rods are distributed at equal angles on the outside of the piston part, the lower end bearing of the connecting frame is connected to the air collecting bin, and the air collecting bin and the piston tube bearing are sealingly connected, one end of the air guide pipe is connected to the air collecting bin, and the other end of the air guide pipe is connected to the lower end of the air collecting tank, the upper end of the air collecting tank is coaxially fixedly connected to the lower end of the gas transmission tank, and the lower end of the gas transmission tank is connected to the air collecting tank.

[0017] Preferably, the sealing plate is provided with a through hole consisting of a hemispherical hole and a coaxial cylindrical hole therewith, and the inner diameter of the hemispherical hole is consistent with the outer diameter of the blocking ball.

[0018] Preferably, the lower ends of the three limit rods extend into the interior of the gas collecting tank, and the lower ends of the three limit rods are fixedly connected to the upper surface of the piston plate, and the piston plate is seamlessly slidably connected to the interior of the gas collecting tank.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the TOC analyzer with an anti-pollution calibration structure can remove dust and suspended matter inside the housing before calibration, thereby preventing dust and suspended matter from affecting the calibration, ensuring the accuracy of subsequent detection, and avoiding frequent manual placement and flushing of the transparent liquid holding tube by staff, thereby facilitating rapid calibration and reducing the labor intensity of staff:

[0020] 1. Through the electronic valve 1, the electronic valve 2 and the electronic valve 3, the metering pump can absorb the gas in the dust suction liquid interval during operation, so that the gas in the dust suction liquid interval enters the delivery pipe through the suction pipe, then enters the intake pipe, and finally enters the gas delivery tank, thereby increasing the air pressure in the gas delivery tank, so that the piston plate moves downward until the intake pipe and the connecting pipe are connected, and then the intake pipe can deliver the gas to the exhaust frame pipe through the connecting pipe. The gas entering the exhaust frame pipe will be discharged from the exhaust hole on the lower surface of the exhaust frame pipe, so that the dust and suspended matter in the shell are blown to the discharge pipe and enter the dust suction liquid interval through the exhaust pipe. Then the liquid in the dust suction liquid interval absorbs the dust and suspended matter carried by the gas, and the gas with the dust and suspended matter removed will flow to the suction pipe again, thereby forming a cycle;

[0021] 2. When the piston disc moves downward, it will also drive the piston plate to move synchronously, thereby squeezing the gas in the gas collecting tank, so that the gas in the gas collecting tank enters the gas collecting bin through the air guide pipe, and then enters the piston tube. The gas entering the piston tube increases the air pressure in the piston tube, so that the piston member in the piston tube moves upward, thereby driving the connecting rod to move upward, so that the blocking ball is separated from the sealing plate. At this time, the transparent liquid holding tube is a vertically connected structure, which helps the gas discharged by the exhaust frame tube to take away the dust and suspended matter in the transparent liquid holding tube;

[0022] 3. The calibration liquid in the calibration liquid interval can be sucked by the metering pump and injected into the transparent liquid storage tube. In addition, the exhaust is exhausted through the exhaust frame tube to separate the blocking ball from the closed plate, so that the calibration liquid in several transparent liquid storage tubes can be discharged at one time, thereby achieving rapid flushing and avoiding frequent removal and placement, which helps to reduce the labor intensity of the staff and quickly perform calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0025] Figure 3 It is a partial cross-sectional structural schematic diagram of the liquid storage box of the present invention;

[0026] Figure 4 It is a schematic diagram of a partial longitudinal section structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the position structure of the metering pump and the servo motor of the present invention;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of point A;

[0029] Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure of point B in the middle;

[0030] Figure 8 This is a schematic diagram of the cross-sectional connection structure of the mounting plate of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at point C in the middle.

[0032] In the figure: 1, shell; 2, sealing cover; 3, visual window; 4, sampling tube with valve; 5, metering pump; 6, delivery pipe; 7, air inlet pipe; 8, electronic valve 1; 9, air suction pipe; 10, electronic valve 2; 11, liquid storage box; 12, liquid inlet hole; 13, exhaust pipe; 14, liquid discharge pipe; 15, partition; 16, calibration liquid interval; 17, dust collection liquid interval; 18, liquid collection tank; 19, mounting frame; 20, servo Motor; 21. Mounting plate; 22. Transparent liquid storage tube; 23. Exhaust frame tube; 24. Electronic valve three; 25. Gas collecting chamber; 26. Air guide tube; 27. Sealing plate; 28. Ball blocking; 29. ​​Connecting rod; 30. Gas collecting tank; 31. Gas transmission tank; 32. Piston disc; 33. Limiting rod; 34. Spring; 35. Connecting tube; 36. Connecting frame; 37. Piston tube; 38. Piston member; 39. Piston plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 9 , the present invention provides the following technical solutions:

[0035] Embodiment 1:

[0036] In order to solve the problem that dust and suspended matter inside the TOC analyzer will affect the calibration result during calibration, which may easily lead to inaccurate subsequent detection results, the following technical solution is provided, specifically, a TOC analyzer with an anti-pollution calibration structure, including a shell 1, a sealing cover 2, a follow-up sealing structure, a dust removal structure and a calibration mechanism, the front end shaft of the shell 1 is connected to the sealing cover 2, and the sealing cover 2 is provided with a visual window 3, the inner top surface of the shell 1 is connected to a mounting frame 19, and a servo motor 20 and a metering pump 5 are installed in the mounting frame 19, and the end seal of the metering pump 5 passes through the upper surface of the shell 1, the shaft end of the servo motor 20 is connected to a mounting disk 21, and transparent liquid containing tubes 22 are distributed at equal angles on the mounting disk 21, and the lower end of the transparent liquid containing tube 22 is connected to the dust removal structure through the follow-up sealing structure.

[0037] The dust removal structure includes an air intake pipe 7, an electronic valve 1 8, an air intake pipe 9, an electronic valve 2 10, an exhaust pipe 13, a dust collection liquid interval 17, an exhaust frame pipe 23, an electronic valve 3 24, an air delivery tank 31, a piston disc 32, a limit rod 33, a spring 34 and a connecting pipe 35. The liquid storage box 11 is divided into a dust collection liquid interval 17 and a calibration liquid interval 16 by a partition 15, and one end of the air intake pipe 9 is connected to the dust collection liquid interval 17, and the other end of the air intake pipe 9 is connected to a section of the delivery pipe 6 connected to the calibration liquid interval 16, and one end of the delivery pipe 6 is connected to a section that passes through the inside of the shell 1, and the electronic valve 2 10 and the electronic valve 1 8 are installed at the connection position of the air intake pipe 9 and the delivery pipe 6 and the connection position of the air intake pipe 7 and the delivery pipe 6 respectively. The other end of 7 is connected to the gas tank 31, and the gas tank 31 is fixedly installed on the inner top surface of the shell 1, the interior of the gas tank 31 is seamlessly slidably connected with a piston disk 32, and the lower surface of the piston disk 32 is provided with three limit rods 33 at equal angles, the lower end of the limit rod 33 is seamlessly sealed and penetrates to the lower surface of the gas tank 31, a spring 34 is provided between the lower surface of the piston disk 32 and the inner bottom surface of the gas tank 31, and the middle and lower part of the gas tank 31 is connected to the exhaust frame pipe 23 through a connecting pipe 35, the exhaust frame pipe 23 is fixedly installed on the inner top surface of the shell 1, one end of the exhaust pipe 13 is connected to the drain pipe 14, and the position where the exhaust pipe 13 and the drain pipe 14 are connected is provided with an electronic valve 3 24, and the other end of the exhaust pipe 13 is passed through to the dust collection liquid interval The inner bottom surface of 17, the part where the dust collection liquid interval 17 and the exhaust pipe 13 are connected is provided with a one-way valve, which is used for the exhaust pipe 13 to unidirectionally transport gas to the dust collection liquid interval 17, the lower surface of the exhaust frame pipe 23 is evenly provided with exhaust holes, and the axis of the exhaust frame pipe 23 is colinear with the axis of the mounting frame 19, and two liquid inlet holes 12 are provided on the liquid storage box 11, and the two liquid inlet holes 12 are respectively connected to the dust collection liquid interval 17 and the calibration liquid interval 16, and a certain amount of calibration liquid is injected into the dust collection liquid interval 17 through the liquid inlet hole 12, and then the liquid inlet hole 12 is closed to form a relatively sealed space in the dust collection liquid interval 17, and the metering pump 5 is started, and the gas in the dust collection liquid interval 17 is passed through the suction pipe 9, the delivery pipe 6 and the electronic valve 1 8 and the electronic valve 2 10 in sequence. The air enters the air tank 31 through the air intake pipe 7. The gas entering the air tank 31 increases the air pressure in the air tank 31, thereby causing the piston plate 32 to move downward until the air intake pipe 7 is connected to the connecting pipe 35. At this time, the gas enters the exhaust frame pipe 23 through the connecting pipe 35 and is discharged from the exhaust holes on the lower surface of the exhaust frame pipe 23, so that the dust and suspended matter inside the shell 1 can be blown to the drain pipe 14. The gas entering the drain pipe 14 enters the exhaust pipe 13 through the electronic valve 24, and then enters the dust absorption liquid interval 17 in the liquid storage box 11, so that the dust and suspended matter can be absorbed by the calibration liquid in the dust absorption liquid interval 17. After that, the air without dust and suspended matter enters the air tank 31 again through the air intake pipe 9, the delivery pipe 6 and the air intake pipe 7 for circulation.By removing dust and suspended matter in the housing 1, it is possible to prevent dust and suspended matter from contaminating the calibration fluid, so that the calibration is not accurate enough, which may cause problems in subsequent tests.

[0038] Embodiment 2:

[0039] In order to solve the problem that in the past, TOC analyzers needed to frequently take out and put in test tubes and rinse the test tubes during calibration, which made the calibration time too long, the following technical solution is provided, specifically, the dust removal structure and the follow-up sealing structure are both connected to the calibration mechanism, a sampling tube 4 with a valve is provided on the shell 1, and the lower end of the sampling tube 4 with a valve is sealed and penetrates into the interior of the shell 1.

[0040] The calibration mechanism includes a delivery pipe 6, a liquid storage box 11, a liquid inlet 12, a partition 15, a calibration liquid interval 16, a liquid discharge pipe 14 and a liquid collecting tank 18. The delivery pipe 6 is provided with two sections, and one end of the two delivery pipes 6 is respectively connected to the input end and the output end of the metering pump 5. The other end of one of the two delivery pipes 6 is sealed and penetrates into the interior of the housing 1, and the other end of the other delivery pipe 6 is sealed and extends into the calibration liquid interval 16. The liquid storage box 11 is fixedly installed at the rear end of the housing 1, and the calibration liquid interval 16 is separated by the partition 15 in the liquid storage box 11. The liquid tank 11 is provided with a liquid inlet hole 12 which passes through both sides thereof. The interior of the shell 1 is provided with a liquid collecting tank 18 which is located directly below the mounting plate 21. The inner bottom end of the liquid collecting tank 18 is connected with a liquid discharge pipe 14 which is provided on the lower surface of the shell 1. By starting the metering pump 5, the delivery pipe 6 injects the calibration liquid in the calibration liquid interval 16 into the transparent liquid storage tube 22, and calibration can be performed, thereby avoiding frequent removal and placement of the transparent liquid storage tube 22, which is beneficial to improving the efficiency of calibration and also reduces the labor burden of the staff.

[0041] The follow-up sealing structure includes an air collecting bin 25, an air guide tube 26, a sealing plate 27, a blocking ball 28, a connecting rod 29, an air collecting tank 30, a connecting frame 36, a piston tube 37 and a piston member 38. The outer side of the sealing plate 27 is sealed and fixed to the lower inner side of the transparent liquid collecting tube 22, and one end of the connecting rod 29 is movably penetrated on the sealing plate 27. The blocking ball 28 is coaxially fixed on the end of the connecting rod 29 extending into the transparent liquid collecting tube 22. The lower surface of the mounting plate 21 is fixedly connected to the connecting frame 36, and the upper surface of the lower end of the connecting frame 36 is coaxially provided with a piston tube 37, and the piston tube 37 is seamlessly slidable in the piston tube 37. The lower end of the piston member 38 is connected, and the outer side of the piston member 38 is equiangularly distributed with connecting rods 29. The lower end bearing of the connecting frame 36 is connected to the air collecting bin 25, and the air collecting bin 25 is sealed and connected with the piston tube 37 bearing. One end of the air guide pipe 26 is connected to the air collecting bin 25, and the other end of the air guide pipe 26 is connected to the lower end of the air collecting tank 30. The upper end of the air collecting tank 30 is coaxially fixedly connected to the lower end of the gas delivery tank 31, and the lower end of the gas delivery tank 31 is connected to the air collecting tank 30. When the piston disc 32 moves downward, the limit rod 33 drives the piston plate 39 The piston member 38 connected to the piston tube 37 moves upward. During the upward movement of the piston member 38, the connecting rod 29 connected to the piston member 38 moves upward synchronously, thereby driving the blocking ball 28 to move upward. After the blocking ball 28 moves upward, it separates from the sealing plate 27, thereby facilitating the discharge of the liquid in the transparent liquid storage tube 22, and then the transparent liquid storage tube 22 can be flushed. Through the operation of the metering pump 5, as well as the electronic valve 1 8, the electronic valve 2 10 and the electronic valve 3 24 The opening and closing not only achieves the purpose of removing dust and suspended matter in the shell 1, but also realizes the calibration of the transparent liquid holding tube 22, thereby ensuring the efficiency and accuracy of the calibration, which is beneficial to the accuracy of subsequent test results. The sealing plate 27 is provided with a through hole composed of a hemispherical hole and a cylindrical hole coaxial therewith, and the inner diameter of the hemispherical hole is consistent with the outer diameter of the blocking ball 28. The lower ends of the three limit rods 33 extend into the interior of the gas collecting tank 30, and the lower ends of the three limit rods 33 are fixedly connected to the upper surface of the piston plate 39, and the piston plate 39 is seamlessly slidably connected to the interior of the gas collecting tank 30.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0043] 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 TOC analyzer with an anti-pollution calibration structure, comprising a housing (1), a sealing cover (2), a follow-up sealing structure, a dust removal structure and a calibration mechanism, characterized in that: The front end shaft of the shell (1) is connected to a sealing cover (2), and a visual window (3) is provided on the sealing cover (2). The inner top surface of the shell (1) is connected to a mounting frame (19), and a servo motor (20) and a metering pump (5) are installed in the mounting frame (19), and the end seal of the metering pump (5) penetrates through the upper surface of the shell (1). The shaft end of the servo motor (20) is connected to a mounting plate (21), and transparent liquid storage tubes (22) are distributed at equal angles on the mounting plate (21). The lower end of the transparent liquid storage tube (22) is connected to a dust removal structure through a follow-up sealing structure, and the dust removal structure and the follow-up sealing structure are both connected to a calibration mechanism. A valved sampling tube (4) is provided on the shell (1), and the lower end seal of the valved sampling tube (4) penetrates through the interior of the shell (1).

2. A TOC analyzer with an anti-pollution calibration structure according to claim 1, characterized in that: The calibration mechanism comprises a delivery pipe (6), a liquid storage box (11), a liquid inlet hole (12), a partition (15), a calibration liquid interval (16), a liquid discharge pipe (14) and a liquid collecting tank (18), wherein the delivery pipe (6) is provided with two sections, and one end of the two sections of the delivery pipe (6) is respectively connected to the input end and the output end of the metering pump (5), the other end of one of the two delivery pipes (6) is sealed and penetrates into the interior of the housing (1), and the other end of the other section of the delivery pipe (6) is sealed and extends into the calibration liquid interval (1 6), the liquid storage box (11) is fixedly mounted at the rear end of the shell (1), and a calibration liquid zone (16) is separated in the liquid storage box (11) by a partition (15), the liquid storage box (11) is provided with a liquid inlet hole (12) penetrating the inner and outer sides thereof, the shell (1) is provided with a liquid collecting trough (18) directly below the mounting plate (21), and the inner bottom end of the liquid collecting trough (18) is connected to a liquid drain pipe (14), and the liquid drain pipe (14) is provided on the lower surface of the shell (1).

3. A TOC analyzer with an anti-pollution calibration structure according to claim 2, characterized in that: The dust removal structure comprises an air intake pipe (7), an electronic valve 1 (8), an air intake pipe (9), an electronic valve 2 (10), an exhaust pipe (13), a dust suction liquid section (17), an exhaust frame pipe (23), an electronic valve 3 (24), an air delivery tank (31), a piston disc (32), a limit rod (33), a spring (34) and a connecting pipe (35). The liquid storage box (11) is divided into a dust suction liquid section (17) and a calibration liquid section (16) by a partition plate (15). One end of an air intake pipe (9) is connected to the liquid interval (17), the other end of the air intake pipe (9) is connected to a section of a delivery pipe (6) connected to the calibration liquid interval (16), and a section of the delivery pipe (6) that passes through the interior of the housing (1) is connected to one end of an air intake pipe (7), and a portion where the air intake pipe (9) and the delivery pipe (6) are connected and a portion where the air intake pipe (7) and the delivery pipe (6) are connected are respectively installed with an electronic valve 2 (10) and an electronic valve 1 (8), The other end of the air inlet pipe (7) is connected to the gas tank (31) through the air tank (31), and the gas tank (31) is fixedly mounted on the inner top surface of the housing (1). The interior of the gas tank (31) is seamlessly slidably connected with a piston disc (32), and the lower surface of the piston disc (32) is provided with three limit rods (33) at equal angles. The lower ends of the limit rods (33) are seamlessly sealed and penetrate the lower surface of the gas tank (31). The lower surface of the piston disc (32) is in contact with the inner bottom of the gas tank (31). A spring (34) is arranged between the surfaces, and the middle and lower part of the gas delivery tank (31) is connected to the exhaust frame pipe (23) through a connecting pipe (35), the exhaust frame pipe (23) is fixedly installed on the inner top surface of the shell (1), one end of the exhaust pipe (13) is connected to the drain pipe (14), and an electronic valve (24) is installed at the connection position between the exhaust pipe (13) and the drain pipe (14), and the other end of the exhaust pipe (13) is connected to the inner bottom surface of the dust collection liquid zone (17).

4. A TOC analyzer with an anti-pollution calibration structure according to claim 3, characterized in that: A one-way valve is provided at the portion where the dust collecting liquid section (17) and the exhaust pipe (13) are connected, and is used for the exhaust pipe (13) to transport gas to the dust collecting liquid section (17) in one direction.

5. A TOC analyzer with an anti-pollution calibration structure according to claim 4, characterized in that: The lower surface of the exhaust frame tube (23) is evenly provided with exhaust holes, and the axis of the exhaust frame tube (23) is colinear with the axis of the mounting frame (19).

6. A TOC analyzer with an anti-pollution calibration structure according to claim 5, characterized in that: The liquid storage box (11) is provided with two liquid inlet holes (12), and the two liquid inlet holes (12) are respectively connected to the dust collection liquid section (17) and the calibration liquid section (16).

7. A TOC analyzer with an anti-pollution calibration structure according to claim 6, characterized in that: The follow-up sealing structure comprises an air collecting bin (25), an air guide tube (26), a sealing plate (27), a blocking ball (28), a connecting rod (29), an air collecting tank (30), a connecting frame (36), a piston tube (37) and a piston member (38); the outer side surface of the sealing plate (27) is sealed and fixed to the inner side of the lower part of the transparent liquid collecting tube (22); one end of the connecting rod (29) is movably penetrated through the sealing plate (27); the blocking ball (28) is coaxially fixed to the end of the connecting rod (29) extending into the transparent liquid collecting tube (22); the lower surface of the mounting plate (21) is fixedly connected to the connecting frame (36); and the upper surface of the lower end of the connecting frame (36) is coaxially provided with A piston tube (37), wherein the lower end of the piston member (38) is seamlessly slidably connected inside the piston tube (37), and connecting rods (29) are distributed at equal angles on the outer side of the piston member (38); the lower end bearing of the connecting frame (36) is connected to the gas collecting bin (25), and the gas collecting bin (25) and the piston tube (37) bearing are sealed and connected through the connection; one end of the gas guide pipe (26) is connected through the gas collecting bin (25), and the other end of the gas guide pipe (26) is connected through the lower end of the gas collecting tank (30); the upper end of the gas collecting tank (30) is coaxially fixedly connected to the lower end of the gas delivery tank (31), and the lower end of the gas delivery tank (31) is connected through the gas collecting tank (30).

8. A TOC analyzer with an anti-pollution calibration structure according to claim 7, characterized in that: The sealing plate (27) is provided with a through hole consisting of a hemispherical hole and a coaxial cylindrical hole, and the inner diameter of the hemispherical hole is consistent with the outer diameter of the blocking ball (28).

9. A TOC analyzer with an anti-pollution calibration structure according to claim 8, characterized in that: The lower ends of the three limit rods (33) extend into the interior of the gas collecting tank (30), and the lower ends of the three limit rods (33) are fixedly connected to the upper surface of the piston plate (39), and the piston plate (39) is seamlessly slidably connected to the interior of the gas collecting tank (30).

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