Liquid optical particle size instrument with quick cleaning flow channel structure for chemical new materials

Abstract

This invention discloses a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, relating to the technical field of flow channel cleaning for optical particle size analyzers. It includes a detector body with two drain pipes installed inside, connected by a connecting pipe. Both ends of the connecting pipe are connected to inlet pipes, and a circular hole is formed between the inlet pipe and the connecting pipe. A cleaning component is slidably connected within the circular hole, and a drain component is slidably connected within the connecting pipe, contacting the cleaning component. A drain hole is formed at the center of the annular surface of the connecting pipe, communicating with the drain component. When cleaning agent is introduced into the connecting pipe through the inlet pipe, a rotating structure drives a moving pipe to rotate. Simultaneously, the cleaning agent pushes a wiping structure out of the moving pipe, causing the wiping structure to perform rectangular rotational wiping within the connecting pipe. The two ends of the connecting pipe alternately receive the liquid to be tested and the cleaning agent, saving cleaning time after use and thus improving the rapid cleaning of the connecting pipe.

Description

Technical Field

[0001] This invention relates to the technical field of cleaning the flow channel of an optical particle size analyzer, specifically to a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure. Background Technology

[0002] An optical particle size analyzer is a precision testing device designed based on optical principles. It is specifically used to measure the particle size distribution, quantity concentration, and morphological characteristics of particles in liquids or gases. Its core working principle is to irradiate the sample with a laser beam, causing the particles to scatter, absorb, or block the light. The instrument captures these changes in optical signals and combines them with algorithms to achieve rapid and high-precision measurement of particle parameters. This device is widely used in pharmaceuticals, petrochemicals, environmental monitoring, materials science, and other fields. For example, it can be used to detect insoluble microparticles in injection solutions, assess the pollution level of lubricating oils, or analyze the distribution of atmospheric particulate matter. Compared with traditional methods, optical particle size analyzers have advantages such as non-contact measurement, fast detection speed (down to the second level), and high repeatability (error is usually less than 3%). It also supports a wide range of detection from nanometers to micrometers (e.g., 0.1μm-150μm). Modern instruments also integrate intelligent functions, such as automatic calibration, cloud data storage, and multi-parameter linkage analysis, which significantly improves detection efficiency and reliability.

[0003] After the optical particle size analyzer completes its testing, it needs to be cleaned to ensure the accuracy of subsequent liquid testing. In the existing technology, the main cleaning method is to rinse with water or cleaning agent. However, this method is not very efficient in cleaning the flow channel of the optical particle size analyzer when dealing with highly viscous liquids, such as oil stains. Furthermore, the optical particle size analyzer cannot detect the liquid while its flow channel is being cleaned, resulting in a decrease in the detection efficiency of the optical particle size analyzer. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, comprising an instrument body, two drain pipes installed within the instrument body, a connecting pipe installed between the two drain pipes, the connecting pipe communicating with the drain pipes, and an optical particle size analyzer installed at the point where the connecting pipe communicates with the drain pipes; both ends of the connecting pipe are provided with inlet pipes communicating with an infusion device; a circular hole is opened between the inlet pipe and the connecting pipe, a cleaning component is slidably connected within the circular hole, the end of the cleaning component away from the circular hole is slidably connected within the inlet pipe, a drain component is slidably connected within the connecting pipe, the drain component is in contact with the cleaning component, a drain hole is opened at the center of the annular surface of the connecting pipe, a drain pipe is installed at the drain hole, and the drain component communicates with the drain hole.

[0006] Furthermore, the cleaning component includes a movable tube that is slidably connected within a circular hole. One end of the movable tube facing the inside of the connecting pipe is in contact with a drain component. A rotating component is installed at the end of the movable tube away from the circular hole. Multiple liquid inlets are provided on the annular surface of the movable tube near the rotating component. Multiple movable holes are provided on the annular surface of the movable tube. A wiping component is slidably connected within the movable holes, and the wiping component is in slidable contact with the inner surface of the connecting pipe.

[0007] Furthermore, the rotating component includes a rotating block, which is installed at the end of the moving tube away from the circular hole. Multiple rotating blades are installed on the annular surface of the rotating block, and the rotating blades are disposed inside the water inlet pipe.

[0008] Furthermore, the wiping component includes a limiting cylinder, which is installed at the moving hole inside the moving tube. A wiping rod is inserted into the limiting cylinder, and an inclined plate is installed at the end of the wiping rod away from the circular hole. The inclined plate is slidably connected inside the limiting cylinder. A blocking rod is installed at the end of the wiping rod inside the moving tube, and the blocking rod is in contact with the limiting cylinder. A wiping cotton is installed at the end of the wiping rod outside the moving hole, and the wiping cotton is in sliding contact with the inner surface of the connecting tube.

[0009] Furthermore, a baffle cylinder is installed inside the water inlet pipe, and the movable pipe is slidably connected inside the baffle cylinder.

[0010] Furthermore, the drainage component includes two piston plates, both of which are slidably connected within the connecting pipe. A connecting rod is installed between the two piston plates. A rectangular hole is provided on the opposite side of each of the two piston plates. A sealing component is installed in the rectangular hole. The sealing component is connected to the connecting rod, and the end of the sealing component away from the piston plate is in contact with the moving pipe.

[0011] Furthermore, the sealing component includes a sealing cylinder, which is installed in a rectangular hole. A sealing rod is inserted into the sealing cylinder, and the end of the sealing rod away from the sealing cylinder contacts the moving tube. Both ends of the connecting rod have grooves, and the sealing rod is inserted into the grooves. An elastic element is installed at one end of the sealing rod inside the sealing cylinder, and the end of the elastic element away from the sealing rod is installed in the groove. A water inlet hole is opened on the annular surface of the sealing cylinder, and a connecting tube is installed on the side of the annular surface of the sealing cylinder away from the water inlet hole. A first one-way valve is installed in the connecting tube, and the end of the connecting tube away from the sealing cylinder extends between two piston plates. A water inlet groove is opened on the outer surface of the sealing rod, and the two sides of the water inlet groove are in sliding contact with the water inlet hole and the connecting tube, respectively.

[0012] Furthermore, a limiting block is installed at the end of the sealing cylinder away from the connecting rod, and a limiting hole is opened on the side of the moving tube facing the piston plate, and the limiting block is inserted into the limiting hole.

[0013] Furthermore, a cleaning cotton is installed on the annular surface of the connecting rod, and the cleaning cotton slides in contact with the inner surface of the connecting pipe.

[0014] Furthermore, liquid inlet holes are provided on both sides of the upper surface of the connecting pipe, and a second one-way valve is installed in the liquid inlet hole.

[0015] This invention provides a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, which has the following beneficial effects:

[0016] 1. This invention installs movable tubes on both sides of a connecting pipe, and installs a rotating structure consisting of a rotating block and rotating blades and a wiping structure consisting of a limiting cylinder, wiping rod, blocking rod, and wiping cotton inside the movable tubes. When the water inlet pipe introduces cleaning agent into the connecting pipe, the rotating structure drives the movable tube to rotate, and the cleaning agent pushes the wiping structure out of the movable tube, so that the wiping structure rotates rectangularly inside the connecting pipe to complete the cleaning of the connecting pipe. The two ends of the connecting pipe are alternately input with the liquid to be tested and the cleaning agent, saving the cleaning time after the connecting pipe is used, thereby improving the speed of cleaning the connecting pipe.

[0017] 2. This invention utilizes the water flow entering through the inlet pipe to drive the moving pipe to move. The moving pipe contacts the piston plate and drives the piston plate to move, so that the liquid to be tested at the other end of the connecting pipe is squeezed into the drain pipe and detected by the optical particle size analyzer, thereby saving the use of pumping equipment.

[0018] 3. This invention installs a connecting rod between two piston plates, and also installs cleaning cotton on the annular surface of the connecting rod. The sealing structure, consisting of a sealing cylinder, a sealing rod, and an elastic element, is then connected to the moving tube via a limiting block. When the moving tube rotates, it drives the sealing structure and piston plates to rotate. The rotation of the piston plates drives the connecting rod to rotate, thereby allowing the cleaning cotton installed on the annular surface of the connecting rod to wipe and clean the inside of the connecting tube, thus increasing the cleaning effect on the inner wall of the connecting tube. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the internal connecting tube of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0021] Figure 3 This is a schematic diagram of the assembly of the sealing cylinder, sealing rod, and piston plate of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0022] Figure 4 This is an assembly diagram of the sealing cylinder and sealing rod of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0023] Figure 5 This is a cross-sectional view of the inlet pipe of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0024] Figure 6 This is a cross-sectional view of the moving tube of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0025] Figure 7 This is a schematic diagram of the assembly of the tilting plate, wiping rod, and limiting cylinder of a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to the present invention.

[0026] In the diagram: 1. Detector body; 2. Inlet pipe; 3. Drain pipe; 4. Connecting pipe; 5. Second check valve; 6. Moving pipe; 7. Drain pipe; 8. Piston plate; 9. Connecting pipe; 10. Sealing cylinder; 11. Rotating block; 12. Rotating blade; 13. Limiting block; 14. Sealing rod; 15. Cleaning cotton; 16. Connecting rod; 17. Limiting hole; 18. Elastic element; 19. Inlet tank; 20. First check valve; 21. Wiping cotton; 22. Moving hole; 23. Liquid inlet; 24. Blocking cylinder; 25. Inclined plate; 26. Limiting cylinder; 27. Wiping rod; 28. Blocking rod; 29. ​​Inlet hole. Detailed Implementation

[0027] Please see Figures 1 to 7 The present invention provides a technical solution: a liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, comprising an instrument body 1, two drain pipes 7 installed inside the instrument body 1, a connecting pipe 4 installed between the two drain pipes 7, and the connecting pipe 4 communicating with the drain pipes 7, and an optical particle size analyzer installed at the connection between the connecting pipe 4 and the drain pipes 7, with liquid inlet holes on both sides of the upper surface of the connecting pipe 4, and a second one-way valve 5 installed in the liquid inlet hole. The second one-way valve 5 only allows external liquid to enter the connecting pipe 4 through the second one-way valve 5, and does not allow liquid in the connecting pipe 4 to be discharged through the second one-way valve 5. The liquid to be tested is input into the connecting pipe 4 through the liquid inlet pipe, and then the liquid to be tested is discharged through the drain pipe 7. When the liquid to be tested is discharged, it is detected by the optical particle size analyzer, and at this time, the particle size information contained in the liquid can be measured.

[0028] Two piston plates 8 are slidably connected inside the connecting pipe 4. A connecting rod 16 is installed between the two piston plates 8. Rectangular holes are opened on opposite sides of the two piston plates 8, and sealing elements are installed in the rectangular holes. A sealing rod 14 is inserted into the sealing cylinder 10. Grooves are opened at both ends of the connecting rod 16, and the sealing rod 14 is inserted into the grooves. An elastic element 18, which is a spring, is installed at one end of the sealing rod 14 inside the sealing cylinder 10. In its normal state, the end of the elastic element 18 away from the sealing rod 14 is installed in the groove. A water inlet hole 29 is opened on the annular surface of the sealing cylinder 10. A connecting pipe 9 is installed on the side of the annular surface of the sealing cylinder 10 away from the water inlet hole 29. A first one-way valve 20 is installed inside the connecting pipe 9. The first one-way valve 20 only allows liquid passing through the water inlet hole 29 to enter between the two piston plates 8. Liquid between the two piston plates 8 is not allowed to enter the sealing cylinder 10 through the first one-way valve 20 and then be discharged from the water inlet 29. The end of the connecting pipe 9 away from the sealing cylinder 10 extends to the space between the two piston plates 8. A water inlet groove 19 is provided on the outer surface of the sealing rod 14. The two sides of the water inlet groove 19 are in sliding contact with the water inlet 29 and the connecting pipe 9, respectively. A drain hole is provided on the annular surface of the connecting pipe 4. The drain hole is located between the two piston plates 8. A drain pipe 3 is installed at the drain hole. When the moving pipe 6 contacts the sealing rod 14, it will abut against the sealing rod 14, causing the sealing rod 14 to move into the groove. After the sealing rod 14 moves, the water inlet groove 19 contacts the water inlet 29 and the drain hole. At this time, the cleaning agent in the connecting pipe 4 can enter the space between the two piston plates 8 through the water inlet 29 and the connecting pipe 9, and then be discharged through the drain pipe 3.

[0029] Both ends of the connecting pipe 4 are equipped with inlet pipes 2 that communicate with the infusion equipment. After the infusion equipment draws out the cleaning agent, it is delivered into the inlet pipe 2. A circular hole is opened between the inlet pipe 2 and the connecting pipe 4. A movable pipe 6 is slidably connected in the circular hole. The end of the sealing rod 14 away from the sealing cylinder 10 is in contact with the movable pipe 6. The movable pipe 6 is set in the inlet pipe 2. A blocking cylinder 24 is installed in the inlet pipe 2. The movable pipe 6 is slidably connected in the blocking cylinder 24. The infusion equipment delivers liquid into the inlet pipe 2. The liquid in the inlet pipe 2 then enters the movable pipe 6 and squeezes the movable pipe 6, causing the movable pipe 6 to move into the connecting pipe 4. The movement of the movable pipe 6 pushes the piston plate 8 to move through the sealing rod 14, so that the liquid to be tested at the other end of the connecting pipe 4 is squeezed into the drain pipe 7 and detected by the optical particle size analyzer, thereby saving the use of the pumping equipment.

[0030] A rotating block 11 is installed at the end of the moving tube 6 away from the circular hole. Multiple liquid inlets 23 are opened on the annular surface of the moving tube 6 near the rotating block 11. The rotating block 11 is installed at the end of the moving tube 6 away from the circular hole. Multiple rotating blades 12 are installed on the annular surface of the rotating block 11 and are disposed inside the water inlet pipe 2. Multiple moving holes 22 are opened on the annular surface of the moving tube 6. A limiting cylinder 26 is installed inside the moving hole 22. A wiping rod 27 is inserted into the limiting cylinder 26. An inclined plate 25 is installed at the end of the wiping rod 27 away from the circular hole. The inclined plate 25 is slidably connected inside the limiting cylinder 26. The wiping rod 27 and... The inclined plate 25, when combined, forms a seal on the limiting cylinder 26. The wiping rod 27 has a blocking rod 28 installed at one end inside the moving tube 6. The blocking rod 28 is in contact with the limiting cylinder 26. The wiping rod 27 has a wiping cotton 21 installed at one end outside the moving hole 22. The wiping cotton 21 slides in contact with the inner surface of the connecting tube 4. When liquid enters the water inlet pipe 2 and comes into contact with the rotating blade 12, it can drive the rotating blade 12 to rotate. The rotation of the rotating blade 12 can drive the moving tube 6 to rotate through the rotating block 11. The rotation of the moving tube 6 drives the wiping rod 27 and the wiping cotton 21 to rotate. The wiping cotton 21 wipes the inner wall of the connecting tube 4.

[0031] By installing movable pipes 6 on both sides of the connecting pipe 4, and installing a rotating structure consisting of a rotating block 11 and a rotating blade 12 and a wiping structure consisting of a limiting cylinder 26, a wiping rod 27, a blocking rod 28 and a wiping cotton 21 inside the movable pipe 6, the rotating structure drives the movable pipe 6 to rotate when the water inlet pipe 2 introduces cleaning agent into the connecting pipe 4. At the same time, the cleaning agent pushes the wiping structure out of the movable pipe 6, so that the wiping structure can perform rectangular rotation wiping inside the connecting pipe 4, thus completing the cleaning of the connecting pipe 4. The two ends of the connecting pipe 4 are alternately input with the liquid to be tested and the cleaning agent, saving the cleaning time after the connecting pipe 4 is used, thereby improving the rapid cleaning of the connecting pipe 4.

[0032] A limiting block 13 is installed at the end of the sealing cylinder 10 away from the connecting rod 16. A limiting hole 17 is opened on the side of the moving tube 6 facing the piston plate 8. The limiting block 13 is inserted into the limiting hole 17. The moving tube 6 is connected to the blocking rod 28 by the limiting block 13. When the moving tube 6 rotates, it can drive the connecting rod 16 to rotate. A cleaning cotton 15 is installed on the annular surface of the connecting rod 16. The cleaning cotton 15 slides in contact with the inner surface of the connecting tube 4.

[0033] By installing a connecting rod 16 between two piston plates 8, and then installing cleaning cotton 15 on the annular surface of the connecting rod 16, the sealing structure consisting of the sealing cylinder 10, the sealing rod 14 and the elastic element 18 is connected to the moving tube 6 through the limiting block 13. When the moving tube 6 rotates, it can drive the sealing structure and the piston plate 8 to rotate. The rotation of the piston plate 8 drives the connecting rod 16 to rotate, thereby causing the cleaning cotton 15 installed on the annular surface of the connecting rod 16 to wipe and clean the inside of the connecting tube 4, thereby increasing the cleaning effect of the inner wall of the connecting tube 4.

[0034] In summary, when using this new liquid optical particle size analyzer for chemical materials with a rapid cleaning flow channel structure, it is assumed that the piston plate 8 is located on the left side of the connecting pipe 4. The liquid to be tested is also input into the connecting pipe 4 through the second one-way valve 5 on the left. As the liquid to be tested is input, the piston gradually moves to the right side of the connecting pipe 4 and squeezes the piston plate 8 to move to the right until the right piston plate 8 contacts the right moving pipe 6.

[0035] At this time, the water supply equipment connected to the right inlet pipe 2 is activated. The water supply equipment draws cleaning agent into the inlet pipe 2. The cleaning agent in the inlet pipe 2 is then input into the moving pipe 6 through the liquid inlet 23. At the same time, it squeezes the space inside the moving pipe 6, causing the moving pipe 6 to move into the connecting pipe 4. The liquid to be tested on the left side of the connecting pipe 4 is squeezed into the drain pipe 7 and detected by the optical particle size analyzer installed in the drain pipe 7. When the moving pipe 6 moves into the connecting pipe 4, the cleaning agent in the moving pipe 6 squeezes the wiping rod 27 and the blocking rod 28, causing the wiping rod 27 to move out of the moving pipe 6 and drive the wiping cotton 21 to contact the inner wall of the connecting pipe 4. When the cleaning agent flows in the inlet pipe 2, it contacts the rotating blades and drives multiple rotating blades to rotate. The rotation of the rotating blades drives the moving pipe 6 to rotate through the rotating block 11. At this time, the multiple wiping rods 27 and wiping cotton 21 that enter the connecting pipe 4 can rotate and wipe the inner wall of the connecting pipe 4 for cleaning.

[0036] Simultaneously, before the moving tube 6 contacts the piston plate 8, the sealing rod 14 contacts the moving tube 6 first. The moving tube 6 squeezes the sealing rod 14, causing the sealing rod 14 to move into the groove, and causing the two sides of the water inlet trough 19 to contact the water inlet hole 29 and the connecting pipe 9 respectively. After the two sides of the water inlet trough 19 contact the water inlet hole 29 and the connecting pipe 9 respectively, some cleaning agent enters between the two piston plates 8 through the water inlet hole 29 and the connecting pipe 9. Since the limiting block 13 is inserted into the limiting hole 17 on the moving tube 6, the rotation of the moving tube 6 will also drive the two piston plates 8 and the connecting rod 16 installed between the two piston plates 8 to rotate. The rotation of the connecting rod 16 drives the cleaning cotton 15 to rotate and perform a first cleaning of the inner wall of the connecting tube 4. Then the wiping rod 27 and the wiping cotton 21 perform a second wiping cleaning of the inner wall of the connecting tube 4 to ensure that the inner wall of the connecting tube 4 is clean. Finally, the cleaning agent is discharged through the drain hole and the drain pipe 3.

[0037] After all the liquid to be tested on the left side of the connecting pipe 4 is discharged, the water supply device connected to the left inlet pipe 2 is restarted, and the water supply device connected to the right inlet pipe 2 is closed. At this time, since the right moving pipe 6 is still in contact with the blocking rod 14, the cleaning agent on the right side of the connecting pipe 4 can be discharged through the drain pipe 7 and the drain pipe 3. After the water supply device connected to the left inlet pipe 2 is opened, the cleaning agent is discharged from the left side through the inlet pipe 2 and the moving pipe 6 into the left connecting pipe 4. Then, the wiping structure set in the left moving pipe 6 and composed of the limiting cylinder 26, the wiping rod 27, the blocking rod 28 and the wiping cotton 21, and the cleaning cotton 15 installed on the annular surface of the connecting rod 16 wipe and clean the inner wall of the left connecting pipe 4 until all the cleaning agent in the right connecting pipe 4 is discharged. After the right moving pipe 6 re-enters the inlet pipe 2, the cleaning of the right connecting pipe 4 is completed. Then, the liquid to be tested can be injected from the right second one-way valve 5 to start a new liquid to be tested.

[0038] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure, comprising an instrument body (1), characterized in that, The detector body (1) is equipped with two drain pipes (7), and a connecting pipe (4) is installed between the two drain pipes (7). The connecting pipe (4) is connected to the drain pipes (7), and an optical particle size analyzer is installed at the connection between the connecting pipe (4) and the drain pipes (7). Both ends of the connecting pipe (4) are provided with inlet pipes (2) that are connected to the infusion equipment. A circular hole is opened between the inlet pipe (2) and the connecting pipe (4). A cleaning component is slidably connected in the circular hole. The end of the cleaning component away from the circular hole is slidably connected in the inlet pipe (2). A drain component is slidably connected in the connecting pipe (4). The drain component is in contact with the cleaning component. A drain hole is opened at the center of the annular surface of the connecting pipe (4). An optical particle size analyzer is installed at the drain hole. The drain pipe (3) is connected to the drain hole. The cleaning component includes a movable pipe (6), which is slidably connected in the round hole. The end of the movable pipe (6) facing the inside of the connecting pipe (4) is in contact with the drain component. A rotating component is installed at the end of the movable pipe (6) away from the round hole. Multiple liquid inlets (23) are opened on the annular surface of the movable pipe (6) near the rotating component. Multiple movable holes (22) are opened on the annular surface of the movable pipe (6). A wiping component is slidably connected in the movable hole (22). The wiping component is in sliding contact with the inner surface of the connecting pipe (4). The wiping component includes a limiting cylinder (26). The limiting cylinder (26) is installed in the movable hole (22) inside the movable pipe (6). 6) A wiping rod (27) is inserted inside. An inclined plate (25) is installed at the end of the wiping rod (27) away from the round hole. The inclined plate (25) is slidably connected inside the limiting cylinder (26). A blocking rod (28) is installed at the end of the wiping rod (27) inside the moving tube (6). The blocking rod (28) is in contact with the limiting cylinder (26). A wiping cotton (21) is installed at the end of the wiping rod (27) outside the moving hole (22). The wiping cotton (21) is in sliding contact with the inner surface of the connecting pipe (4). The drainage component includes two piston plates (8). Both piston plates (8) are slidably connected inside the connecting pipe (4). A connecting rod (16) is installed between the two piston plates (8). The two piston plates (8) are opposite to each other. A rectangular hole is provided on one side of the piston plate (8), and a sealing element is installed in the rectangular hole. The sealing element is connected to the connecting rod (16). The end of the sealing element away from the piston plate (8) is in contact with the moving tube (6). The sealing element includes a sealing cylinder (10). The sealing cylinder (10) is installed in the rectangular hole. A sealing rod (14) is inserted into the sealing cylinder (10). The end of the sealing rod (14) away from the sealing cylinder (10) is in contact with the moving tube (6). Both ends of the connecting rod (16) are provided with grooves. The sealing rod (14) is inserted into the grooves. An elastic element (18) is installed at one end of the sealing rod (14) inside the sealing cylinder (10). The end of the elastic element (18) away from the sealing rod (14) is installed in the groove.The sealing cylinder (10) has a water inlet hole (29) on its annular surface. A connecting pipe (9) is installed on the side of the annular surface of the sealing cylinder (10) away from the water inlet hole (29). A first one-way valve (20) is installed inside the connecting pipe (9). The end of the connecting pipe (9) away from the sealing cylinder (10) extends between the two piston plates (8). A water inlet groove (19) is provided on the outer surface of the sealing rod (14). The two sides of the water inlet groove (19) are in sliding contact with the water inlet hole (29) and the connecting pipe (9), respectively. A limiting block (13) is installed on the end of the sealing cylinder (10) away from the connecting rod (16). A limiting hole (17) is provided on the side of the moving tube (6) facing the piston plate (8). The limiting block (13) is inserted into the limiting hole (17). A cleaning cotton (15) is installed on the annular surface of the connecting rod (16). The cleaning cotton (15) is in sliding contact with the inner surface of the connecting tube (4).

2. The liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to claim 1, characterized in that, The rotating component includes a rotating block (11), which is installed at one end of the moving pipe (6) away from the circular hole. Multiple rotating blades (12) are installed on the annular surface of the rotating block (11), and the rotating blades (12) are disposed inside the water inlet pipe (2).

3. The liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to claim 2, characterized in that, A baffle cylinder (24) is installed inside the water inlet pipe (2), and the movable pipe (6) is slidably connected inside the baffle cylinder (24).

4. The liquid optical particle size analyzer for new chemical materials with a rapid cleaning flow channel structure according to claim 3, characterized in that, The upper surface of the connecting pipe (4) is provided with liquid inlet holes on both sides, and a second one-way valve (5) is installed in the liquid inlet hole.

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