An ethylene glycol formaldehyde index analyzer

Abstract

The invention relates to the technical field of liquid analyzers, and discloses an ethylene glycol formaldehyde index analyzer, comprising an analyzer head, a display screen is arranged on the outer surface of the analyzer head, an operation button is arranged on the outer surface of the analyzer head, a bottom connection seat is threadedly connected to the bottom of the analyzer head, a material collection tube is fixedly connected to the bottom of the analyzer head, a liquid passage is arranged outside the analyzer head, and a detection tube is fixedly connected to the surface of the liquid passage; through the filtering effect of a filter plate, impurities and precipitation in an ethylene glycol solution can be prevented from entering the interior of the material collection tube to form scale, and the existence of precipitation on the inner wall of the material collection tube can be prevented from hindering the fluidity of the material collection tube; at the same time, a cleaning scraper is attached to the material collection tube and circulates along the outer wall of the material collection tube, so that attachments on the surface of the material collection tube can be scraped off by the cleaning scraper and become loose and flow with the ethylene glycol solution.

Description

Technical Field

[0001] The invention relates to the technical field of liquid analyzers, in particular to an ethylene glycol aldehyde index analyzer. Background Art

[0002] Ethylene glycol is a multifunctional compound that is widely used in industrial production, the automotive industry, the medical field and other fields, playing an important role.

[0003] In the production process of ethylene glycol, if the catalyst in ethylene glycol is not completely removed, aldehydes will be generated in ethylene glycol. At the same time, inappropriate storage conditions will cause the production equipment and raw materials to be contaminated. The contamination of production equipment and raw materials will also cause aldehydes in ethylene glycol. The aldehyde index is one of the important parameters to measure the purity and quality of ethylene glycol products. A high aldehyde index means that there are impurities or pollutants in the product, which affects the performance and stability of the product. Some aldehydes can also cause harm to human health. In order to evaluate whether ethylene glycol products meet safety standards and protect the health of users, the aldehyde index of ethylene glycol needs to be tested and analyzed during the production process of ethylene glycol.

[0004] The ethylene glycol formaldehyde index analyzer is usually inserted into the ethylene glycol pipeline. Due to the temperature difference between the liquid intake pipeline of the analyzer and the ethylene glycol, when ethylene glycol contacts the liquid intake pipeline, certain components in the ethylene glycol will precipitate or crystallize, and eventually scale will form on the inner and outer walls of the liquid intake pipeline. At the same time, ethylene glycol will contain some impurities or solid particles, which will gradually form scale in the liquid intake pipeline. Severe scaling will cause partial or complete blockage of the liquid intake pipeline, affecting the flow of ethylene glycol, and further affecting the normal sampling, and even damaging the analytical instrument. At the same time, scaling will cause the inner wall of the pipeline to become rough, increasing the adsorption and adhesion of aldehydes or other impurities in ethylene glycol, affecting the accuracy of sampling, thereby reducing the accuracy of the analysis results. Scaling will also increase the frequency of maintenance and cleaning, increase maintenance costs and operational complexity.

[0005] In addition, because the analyzer is inserted into the ethylene glycol pipeline, the connection between the analyzer and the ethylene glycol pipeline will become loose due to the continuous impact of the large flow of ethylene glycol in the pipeline, which will cause the analyzer to shake, affecting the sampling and detection process of the analyzer, resulting in inaccurate analysis results. In addition, due to the looseness of the analyzer, the connection between the analyzer and the ethylene glycol pipeline is not tight, resulting in a gap in the connection. Due to the existence of the gap, the ethylene glycol in the pipeline will overflow from the gap. Ethylene glycol is a flammable and toxic liquid. If it overflows into the environment, it will increase safety risks in production and even endanger the health of workers, posing a serious threat to personnel and facilities.

[0006] Therefore, an ethylene glycol formaldehyde index analyzer is proposed. Summary of the invention

[0007] The object of the present invention is to provide an ethylene glycol formaldehyde index analyzer to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ethylene glycol formaldehyde index analyzer, comprising an analytical instrument head, a display screen is arranged on the outer surface of the analytical instrument head, an operation button is arranged on the outer surface of the analytical instrument head, a bottom threaded connection of the analytical instrument head is connected to a bottom connecting seat, a material collection pipe is fixedly connected to the bottom of the bottom connecting seat, a liquid passage is arranged on the outside of the analytical instrument head, a detection pipe is fixedly connected to the surface of the liquid passage, and the liquid passage is characterized in that: a cleaning component for cleaning the surface of the material collection pipe is arranged on the liquid passage, an early warning component for ethylene glycol leakage reminder is arranged on the detection pipe, and a stable sealing component for fixing the material collection pipe when the material collection pipe is loose and preventing continuous leakage of ethylene glycol is arranged on the early warning component.

[0009] Preferably, the cleaning assembly includes a fixed bracket, which is fixedly connected to the top of the inner wall of the liquid pipeline, and the interior of the fixed bracket is rotatably connected to a rotating connecting shaft, and the end of the rotating connecting shaft away from the detection pipeline is fixedly connected to a driving turbine.

[0010] Preferably, the cleaning component also includes an active bevel gear, which is fixedly connected to the end of the rotating connecting shaft away from the driving turbine, the internal rotation of the fixed bracket is connected to the driven belt shaft bevel gear, the driven belt shaft bevel gear and the active bevel gear are meshed with each other, the top of the driven belt shaft bevel gear is fixedly connected to the cleaning shaft, the outer wall of the cleaning shaft is fixedly connected to the cleaning scraper, the top of the cleaning shaft is fixedly connected to the anti-blocking scraper, and the bottom of the inner wall of the material collection pipe is fixedly connected to the filter plate.

[0011] Preferably, the early warning component includes a detection shell, which is fixedly installed at the connection between the detection pipeline and the material collection pipe, the bottom of the inner wall of the detection shell is fixedly connected with early warning springs in an annular array, the top of the early warning springs in the annular array is fixedly connected with a receiving circular plate, the bottom of the receiving circular plate is fixedly connected with a first conductive block in an annular array, the bottom of the inner wall of the detection shell is fixedly connected with a second conductive block in an annular array, and the top of the detection shell is fixedly connected with an alarm.

[0012] Preferably, the stable sealing assembly includes a fixed connecting plate, which is fixedly connected to the inner wall of the detection shell, and the surface of the fixed connecting plate is provided with guide straight grooves in an annular array, and the top of the inner wall of the detection shell is rotatably connected to a driving gear.

[0013] Preferably, the stable sealing component also includes a linkage tooth plate, which is rotatably connected to the top of the inner wall of the detection shell, and the driving gear is meshed with the linkage tooth plate. The lower surface of the linkage tooth plate is provided with guide bevel grooves in a ring array, and the interior of the guide bevel grooves is slidably connected to a sliding connection shaft, and the sliding connection shafts are slidably connected to the interior of the guide straight grooves. A linkage clamp is fixedly connected to the bottom of the sliding connection shaft, and a water sealing strip is fixedly connected to the side of the linkage clamp close to the material collection pipe.

[0014] Preferably, there is an electrical connection between the analytical instrument head and the external power supply.

[0015] Preferably, the material collection tube, the bottom connecting seat and the interior of the analytical instrument head are interconnected.

[0016] Preferably, the cleaning scraper is in contact with the outer wall of the material collection tube, and the anti-blocking scraper is in contact with the surface of the filter plate.

[0017] Preferably, the second conductive block is located on the movement trajectory of the first conductive block, there is an electrical connection between the second conductive block and the external power supply, there is an electrical connection between the first conductive block and the alarm, the driving gear is driven and installed on the external driving device, and there is an electrical connection between the first conductive block and the external driving device of the driving gear.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the filtering effect of the filter plate, impurities and precipitation in the ethylene glycol solution can be prevented from entering the interior of the material collection tube to form scaling, and the existence of precipitation on the inner wall of the material collection tube can be prevented from hindering the fluidity of the material collection tube, thereby ensuring the smoothness of the sampling process. At the same time, the anti-blocking scraper is in contact with the surface of the filter plate, and the impurities intercepted on the filter plate can be scraped off by the rotation of the anti-blocking scraper, thereby ensuring the cleanliness of the filter plate and preventing the filter plate from being blocked and affecting the fluidity of the ethylene glycol solution. In addition, the cleaning scraper is in contact with the material collection tube and rotates along the outer wall of the material collection tube, so that the attachments on the surface of the material collection tube can be scraped off by the cleaning scraper and become loose and flow with the ethylene glycol solution, thereby ensuring the cleanliness of the material collection tube, reducing the difficulty of subsequent cleaning by the staff, and reducing the complexity of the staff's operation;

[0020] 2. When ethylene glycol leaks from the connection between the self-collecting pipe and the detection pipe to the inside of the receiving circular plate, the receiving circular plate moves down to make the first conductive block and the second conductive block fit each other, and then the alarm starts to light up and sound, which can quickly remind the staff when ethylene glycol leaks, so that the staff can take corresponding measures in time to avoid the continuous overflow of ethylene glycol due to untimely discovery, thus ensuring the safety of the staff and equipment. At the same time, the sounding and lighting of the alarm can enable the staff to quickly locate the overflow part of the pipeline, saving the difficulty of the staff to find and save maintenance time;

[0021] 3. The water sealing strip gathers around the connection between the material collection pipe and the detection pipe and fits with the connection. When ethylene glycol leaks from the connection, the water sealing strip can provide emergency protection for the connection to ensure the sealing of the connection and prevent the overflow from continuing to leak ethylene glycol liquid, thus reducing the waste of ethylene glycol solution and preventing excessive leakage of ethylene glycol solution into the working environment, posing a threat to the staff and equipment, thus ensuring the safety of the production environment.

[0022] 4. The water sealing strip is driven to gather toward the material collection pipe by the linkage clamp, so that the material collection pipe can be fixed to prevent the material collection pipe from continuous shaking due to loosening, thereby ensuring the stability of the analytical instrument head, avoiding inaccurate analysis results due to shaking of the analytical instrument head, ensuring the reliability of the analysis results, and ensuring the product quality of the produced ethylene glycol solution, avoiding excessively high aldehyde index in ethylene glycol due to analysis errors, affecting the health of users, and also avoiding wear of the connection between the material collection pipe and the detection pipeline due to continuous shaking of the material collection pipe, thereby affecting the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the cleaning component structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram of the structure at center A;

[0026] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the detection shell of the present invention;

[0027] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of the structure at B in the middle;

[0028] Figure 6 It is a three-dimensional schematic diagram of the positional relationship between the receiving circular plate and the first conductive block of the present invention;

[0029] Figure 7 It is a three-dimensional schematic diagram of the positional relationship between the driving gear and the linkage gear plate of the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of the positional relationship between the detection shell and the fixed connecting plate of the present invention.

[0031] In the figure:

[0032] 1. Analytical instrument head; 11. Display screen; 12. Operation buttons;

[0033] 2. Bottom connection seat; 3. Material collection pipe; 4. Liquid pipe; 5. Detection pipe;

[0034] The cleaning assembly includes: 61, a fixed bracket; 62, a rotating connecting shaft; 63, a driving turbine; 64, an active bevel gear; 65, a driven bevel gear with a shaft; 66, a cleaning rotating shaft; 67, a cleaning scraper; 68, an anti-blocking scraper; 69, a filter plate;

[0035] The early warning component includes: 71, a detection shell; 72, an early warning spring; 73, a receiving circular plate; 74, a first conductive block; 75, a second conductive block; 76, an alarm;

[0036] The stable sealing component includes: 81, a fixed connecting plate; 82, a guide straight groove; 83, a driving gear; 84, a linkage tooth plate; 85, a guide inclined groove; 86, a sliding connecting shaft; 87, a linkage clamping block; 88, a water sealing strip. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figures 1 to 8 , is an embodiment provided by the present invention: an ethylene glycol formaldehyde index analyzer, comprising an analytical instrument head 1, a display screen 11 is arranged on the outer surface of the analytical instrument head 1, an operation button 12 is arranged on the outer surface of the analytical instrument head 1, a bottom connection seat 2 is threadedly connected to the bottom of the analytical instrument head 1, a material collection pipe 3 is fixedly connected to the bottom of the bottom connection seat 2, a liquid passage 4 is arranged outside the analytical instrument head 1, a detection pipe 5 is fixedly connected to the surface of the liquid passage 4, a cleaning component for cleaning the surface of the material collection pipe 3 is arranged on the liquid passage 4, an early warning component for reminding ethylene glycol leakage is arranged on the early warning component, and a stable blocking component for fixing the material collection pipe 3 when the material collection pipe 3 is loose and preventing continuous leakage of ethylene glycol is arranged on the early warning component;

[0039] The cleaning component includes a fixed bracket 61, which is fixedly connected to the top of the inner wall of the liquid passage 4. The fixed bracket 61 is internally rotatably connected to a rotating connecting shaft 62. The end of the rotating connecting shaft 62 away from the detection pipeline 5 is fixedly connected to a driving turbine 63. The cleaning component also includes an active bevel gear 64, which is fixedly connected to the end of the rotating connecting shaft 62 away from the driving turbine 63. The fixed bracket 61 is internally rotatably connected to a driven belt shaft bevel gear 65, and the driven belt shaft bevel gear 65 is meshed with the active bevel gear 64. The top of the driven belt shaft bevel gear 65 is fixedly connected to a cleaning shaft 66, the outer wall of the cleaning shaft 66 is fixedly connected to a cleaning scraper 67, the top of the cleaning shaft 66 is fixedly connected to an anti-blocking scraper 68, and the bottom of the inner wall of the material collection pipe 3 is fixedly connected to a filter plate 69.

[0040] Wherein: the setting of the filter plate 69 plays a role in filtering the ethylene glycol solution.

[0041] The early warning component includes a detection shell 71, which is fixedly installed at the connection between the detection pipeline 5 and the material collection pipe 3. A receiving circular plate 73 is arranged inside the detection shell 71. The early warning component also includes early warning springs 72. The early warning springs 72 are fixedly connected to the bottom of the inner wall of the detection shell 71 in an annular array. The tops of the early warning springs 72 in the annular array are all fixedly connected to the receiving circular plate 73. The bottom of the receiving circular plate 73 is fixedly connected with a first conductive block 74 in an annular array. The bottom of the inner wall of the detection shell 71 is fixedly connected with a second conductive block 75 in an annular array. The top of the detection shell 71 is fixedly connected with an alarm 76.

[0042] Among them: there is an electrical connection between the second conductive block 75 and the external power supply, and there is an electrical connection between the first conductive block 74 and the alarm 76. When the first conductive block 74 is electrically in contact with the second conductive block 75, the first conductive block 74 is powered on to electrically control the alarm 76 to start sounding and emitting light at the same time.

[0043] The stable sealing component includes a fixed connecting plate 81, which is fixedly connected to the inner wall of the detection shell 71. The surface of the fixed connecting plate 81 is annularly arrayed with guide straight grooves 82. The top of the inner wall of the detection shell 71 is rotatably connected with a driving gear 83. The stable sealing component also includes a linkage tooth plate 84, which is rotatably connected to the top of the inner wall of the detection shell 71. The driving gear 83 and the linkage tooth plate 84 are meshed with each other. The lower surface of the linkage tooth plate 84 is annularly arrayed with guide inclined grooves 85. The inside of the guide inclined grooves 85 is slidably connected with a sliding connecting shaft 86. The sliding connecting shafts 86 are slidably connected to the inside of the guide straight grooves 82. The bottom of the sliding connecting shaft 86 is fixedly connected with a linkage clamping block 87, and the side of the linkage clamping block 87 close to the material collection pipe 3 is fixedly connected with a water sealing strip 88.

[0044] The oblique guiding effect of the guide inclined groove 85 makes the sliding connection shaft 86 gather toward the material collection through pipe 3 , and at the same time, due to the linear limiting effect of the guide straight groove 82 , the sliding connection shaft 86 slides linearly inside the guide straight groove 82 .

[0045] The above implementation works as follows:

[0046] The initialization steps are as follows:

[0047] The staff inserts the material collection pipe 3 into the detection pipe 5 and installs the detection shell 71 at the connection between the material collection pipe 3 and the detection pipe 5 .

[0048] The working steps are as follows:

[0049] The following is an explanation of the process of cleaning the material collection pipe 3 by the cleaning component:

[0050] like Figures 2 to 3 As shown, since the material collection pipe 3, the bottom connecting seat 2 and the interior of the analytical instrument head 1 are connected, the ethylene glycol solution in the liquid pipe 4 enters the interior of the analytical instrument head 1 through the material collection pipe 3 and the bottom connecting seat 2, and the analysis result is displayed on the display screen 11 through the analysis of the sensor inside the analytical instrument head 1, which is convenient for the staff to make decision-making analysis.

[0051] As the ethylene glycol solution flows in the liquid passage 4, when the ethylene glycol solution passes through the curved surface of the blades of the driving turbine 63, the flow speed and direction of the solution change, and a force is applied to the driving turbine 63. The driving turbine 63 obtains angular momentum and starts to rotate inside the liquid passage 4. The rotation of the driving turbine 63 drives the rotating connecting shaft 62 to rotate inside the fixed bracket 61. The rotation of the rotating connecting shaft 62 drives the active bevel gear 64 to rotate synchronously. Since the active bevel gear 64 and the driven belt shaft bevel gear 65 are meshed with each other, the rotation of the active bevel gear 64 drives the driven belt shaft bevel gear 65 to rotate inside the fixed bracket 61. The rotation of the driven belt shaft bevel gear 65 drives the cleaning shaft 66 fixedly connected to its top to rotate synchronously. The rotation of the cleaning shaft 66 drives the cleaning scraper 67 fixedly connected to its surface to rotate around the outer wall of the material collection pipe 3. Since the cleaning scraper 67 fits the outer surface of the material collection pipe 3, the cleaning scraper 67 is The rotation of the cleaning shaft 66 can scrape off the precipitate attached to the surface of the material collection tube 3 and make the precipitate loose and continue to flow with the ethylene glycol solution, thereby ensuring the cleanliness of the material collection tube 3, reducing the difficulty of subsequent cleaning by the staff, and reducing the complexity of the staff's operation. At the same time, through the filtering effect of the filter plate 69, it can prevent impurities and precipitates in the ethylene glycol solution from entering the interior of the material collection tube 3 to form scaling, and avoid obstruction of the fluidity of the material collection tube 3 due to the presence of precipitates on the inner wall of the material collection tube 3, thereby ensuring the smoothness of the sampling process. The rotation of the cleaning shaft 66 drives the anti-blocking scraper 68 fixedly connected to the top thereof to rotate around the center of the filter plate 69 as the axis. Because the anti-blocking scraper 68 is in contact with the surface of the filter plate 69, the rotation of the anti-blocking scraper 68 can scrape off the impurities intercepted on the filter plate 69 and make the impurities loose and continue to flow with the ethylene glycol solution, thereby ensuring the cleanliness of the filter plate 69 and preventing the filter plate 69 from being blocked and affecting the fluidity of the ethylene glycol solution.

[0052] The following is an explanation of the process of the early warning component giving an early warning when a glycol solution leak occurs:

[0053] like Figures 4 to 6As shown, when the material collection tube 3 becomes loose under the continuous impact of the ethylene glycol solution, the material collection tube 3 will shake, and then a gap will appear at the connection between the material collection tube 3 and the detection pipeline 5, and the ethylene glycol solution will overflow from the gap, and the overflowed ethylene glycol solution will flow to the inside of the receiving circular plate 73. The receiving circular plate 73 moves downward under the gravity of the ethylene glycol solution inside it. The downward movement of the receiving circular plate 73 will compress the warning spring 72. When the receiving circular plate 73 moves to the lowest end, because the second conductive block 75 is located on the movement trajectory of the first conductive block 74, the second conductive block 75 is in electrical contact with the first conductive block 74, and because the second conductive block 75 is located on the movement trajectory of the first conductive block 74, the second conductive block 75 is in electrical contact with the first conductive block 74. There is an electrical connection between the second conductive block 75 and the external power supply, and there is an electrical connection between the first conductive block 74 and the alarm 76. At this time, the first conductive block 74 is energized to electrically control the alarm 76 to start lighting and sounding, so that the staff can be quickly reminded when ethylene glycol leaks, so that the staff can take corresponding measures in time to avoid the continuous overflow of ethylene glycol due to untimely discovery, thereby ensuring the safety of the staff and equipment. At the same time, the sounding and lighting of the alarm 76 can enable the staff to quickly locate the overflow site of the pipeline, saving the staff the difficulty of searching and saving maintenance time.

[0054] The following is an explanation of the process of using a stable plugging component to plug the ethylene glycol solution leak and stabilize the material collection pipe 3:

[0055] like Figures 7 and 8 As shown, when the ethylene glycol solution leaks, the second conductive block 75 is in electrical contact with the first conductive block 74. Since there is an electrical connection between the first conductive block 74 and the external drive device of the drive gear 83, the first conductive block 74 is energized to electrically control the external drive device of the drive gear 83 to start, and the external drive device of the drive gear 83 drives the drive gear 83 to start rotating. Since the linkage gear plate 84 and the drive gear 83 are meshed with each other, the rotation of the drive gear 83 drives the linkage gear plate 84 to rotate, and the rotation of the linkage gear plate 84 drives the guide inclined groove 85 to rotate around the center of the linkage gear plate 84. At this time, the sliding connection shaft 86 is guided by the inner wall of the guide inclined groove 85 and slides inside the guide inclined groove 85. At the same time, due to the limiting effect of the guiding straight groove 82, the sliding connecting shaft 86 slides linearly inside the guiding straight groove 82 and gathers in the direction of the material collection pipe 3. The sliding of the sliding connecting shaft 86 drives the linkage clamping block 87 to move synchronously. The movement of the linkage clamping block 87 drives the water sealing strip 88 to move synchronously until it fits with the material collection pipe 3. Because the water sealing strip 88 is configured as an elastic rubber water sealing ring, the water sealing strip 88 can perform emergency protection on the connection to ensure the sealing of the connection and prevent the leakage from continuing to leak the ethylene glycol solution outward, thereby reducing the waste of the ethylene glycol solution and also preventing the excessive leakage of the ethylene glycol solution into the working environment, posing a threat to the staff and equipment, thereby ensuring the safety of the production environment.

[0056] At the same time, due to the clamping effect of the linkage clamping block 87 gathering in the direction of the material collection pipe 3, the material collection pipe 3 can be fixed to prevent the material collection pipe 3 from continuous shaking due to loosening, thereby ensuring the stability of the analytical instrument head 1, avoiding inaccurate analysis results due to shaking of the analytical instrument head 1, ensuring the reliability of the analysis results, ensuring the product quality of the produced ethylene glycol solution, avoiding excessively high aldehyde index in ethylene glycol due to analysis errors, affecting the health of users, and also avoiding the wear of the connection between the material collection pipe 3 and the detection pipeline 5 due to continuous shaking of the material collection pipe 3, thereby affecting the sealing of the connection.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] 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. An ethylene glycol formaldehyde index analyzer, comprising an analyzer head (1), a display screen (11) being arranged on the outer surface of the analyzer head (1), an operation button (12) being arranged on the outer surface of the analyzer head (1), a bottom connection seat (2) being threadedly connected to the bottom of the analyzer head (1), a material collection pipe (3) being fixedly connected to the bottom of the bottom connection seat (2), a liquid pipe (4) being arranged outside the analyzer head (1), a detection pipe (5) being fixedly connected to the surface of the liquid pipe (4), characterized in that: The liquid passage pipe (4) is provided with a cleaning component for cleaning the surface of the material passage pipe (3), the detection pipe (5) is provided with an early warning component for warning of ethylene glycol leakage, and the early warning component is provided with a firm blocking component for fixing the material passage pipe (3) when the material passage pipe (3) is loose and preventing continuous leakage of ethylene glycol; The cleaning assembly comprises a fixed bracket (61), the fixed bracket (61) being fixedly connected to the top of the inner wall of the liquid passage (4), the interior of the fixed bracket (61) being rotatably connected to a rotatable connecting shaft (62), and one end of the rotatable connecting shaft (62) away from the detection pipeline (5) being fixedly connected to a driving turbine (63); The cleaning assembly further comprises an active bevel gear (64), the active bevel gear (64) being fixedly connected to one end of the rotating connecting shaft (62) away from the driving turbine (63); a driven belt shaft bevel gear (65) is rotatably connected inside the fixed bracket (61); the driven belt shaft bevel gear (65) and the active bevel gear (64) are meshed with each other; a cleaning rotating shaft (66) is fixedly connected to the top of the driven belt shaft bevel gear (65); a cleaning scraper (67) is fixedly connected to the outer wall of the cleaning rotating shaft (66); an anti-blocking scraper (68) is fixedly connected to the top of the cleaning rotating shaft (66); and a filter plate (69) is fixedly connected to the bottom of the inner wall of the material collection tube (3); The cleaning scraper (67) is in contact with the outer wall of the material collection tube (3), and the anti-blocking scraper (68) is in contact with the surface of the filter plate (69).

2. The ethylene glycol formaldehyde index analyzer according to claim 1, characterized in that: The early warning component comprises a detection shell (71), the detection shell (71) being fixedly mounted at the connection between the detection pipeline (5) and the material collection tube (3), the inner wall bottom of the detection shell (71) being fixedly connected to early warning springs (72) in an annular array, the top of the early warning springs (72) in the annular array being fixedly connected to a receiving circular plate (73), the bottom of the receiving circular plate (73) being fixedly connected to a first conductive block (74) in an annular array, the inner wall bottom of the detection shell (71) being fixedly connected to a second conductive block (75) in an annular array, and the top of the detection shell (71) being fixedly connected to an alarm (76).

3. The ethylene glycol formaldehyde index analyzer according to claim 2, characterized in that: The stable blocking assembly comprises a fixed connection plate (81), the fixed connection plate (81) being fixedly connected to the inner wall of the detection shell (71), the surface of the fixed connection plate (81) being provided with guide straight grooves (82) in an annular array, and the top of the inner wall of the detection shell (71) being rotatably connected to a driving gear (83).

4. The ethylene glycol formaldehyde index analyzer according to claim 3, characterized in that: The stable blocking component also includes a linkage tooth plate (84), the linkage tooth plate (84) is rotatably connected to the top of the inner wall of the detection shell (71), the driving gear (83) and the linkage tooth plate (84) are meshed with each other, and the lower surface of the linkage tooth plate (84) is provided with guide inclined grooves (85) in a ring array, and the inside of the guide inclined grooves (85) is slidably connected to a sliding connection shaft (86), and the sliding connection shaft (86) is slidably connected to the inside of the guide straight groove (82), and the bottom of the sliding connection shaft (86) is fixedly connected to a linkage clamping block (87), and the side of the linkage clamping block (87) close to the material collection pipe (3) is fixedly connected to a water sealing strip (88).

5. The ethylene glycol formaldehyde index analyzer according to claim 1, characterized in that: There is an electrical connection between the analytical instrument head (1) and the external power supply.

6. The ethylene glycol formaldehyde index analyzer according to claim 1, characterized in that: The interiors of the material collection through pipe (3), the bottom connecting seat (2) and the analytical instrument head (1) are interconnected.

7. The ethylene glycol formaldehyde index analyzer according to claim 3, characterized in that: The second conductive block (75) is located on the movement track of the first conductive block (74); the second conductive block (75) is electrically connected to an external power source; the first conductive block (74) is electrically connected to an alarm (76); the driving gear (83) is driven and installed on an external driving device; and the first conductive block (74) is electrically connected to the external driving device of the driving gear (83).

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