Dispersing device of laser particle analyzer dry method measurement system
By improving the structural design of the dispersion device, the compressed air is ensured to be evenly distributed in the mixing chamber, which solves the problem of poor dispersion effect caused by airflow turbulence in traditional devices. This achieves uniform dispersion of materials and accuracy of measurement results, while reducing equipment maintenance costs.
Patent Information
- Application Number
- CN202423140415.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In traditional dispersion devices, turbulent compressed air can lead to poor dispersion, easily causing blockage of the chamber and affecting the accuracy of measurement results.
The design incorporates an air inlet chamber, air inlet pipe, dispersion pipe, and venturi tube to ensure uniform distribution of compressed air within the mixing chamber, preventing airflow turbulence. The design of the air inlet and outlet ports stabilizes the airflow, and the use of the venturi tube achieves complete material dispersion.
It achieves uniform dispersion of materials, avoids the impact of airflow turbulence on dispersion performance, ensures the accuracy of measurement results, and facilitates the replacement and maintenance of dispersion tubes, thereby reducing equipment costs.
Smart Images
Figure CN223692134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dispersing device technical field, especially in a kind of dispersing device of laser particle size instrument dry method measuring system. BACKGROUND
[0002] Laser particle size analyzer is a kind of instrument for measuring particle size distribution, when carrying out dry method measurement analysis, sample needs to enter the auxiliary system of measuring host computer and carries out dispersion processing, and the dispersion device of auxiliary system sends the well-dispersed sample into the measurement area of particle size instrument and carries out measurement, only when sample is in good dispersion state, the accuracy of measurement result can be ensured.Therefore, in the laser particle size instrument dry method measuring system, dispersion device is one of the most core components, and its main role is to disperse the particles in sample by physical method, avoid the agglomeration phenomenon between particles, so that each particle can independently receive laser irradiation, thereby obtaining accurate intensity information.
[0003] The sample of traditional dispersion device sample unloading area enters dispersion device, while compressed air is sprayed from air nozzle, and high-speed airflow blows sample into dispersion cavity, and sample is sent into measurement unit for measurement after collision in dispersion cavity through dispersion pipe.
[0004] Traditional dispersion device has the following shortcomings in actual application:
[0005] There is turbulent flow in compressed air in air nozzle, and the turbulent airflow will affect dispersion effect in dispersion cavity. When compressed air mixed sample collides in dispersion cavity, turbulent flow area will be formed at the position of peripheral wall, and sticky sample in turbulent flow area will adhere to pipe wall, causing cavity blockage. UTILITY MODEL CONTENTS
[0006] The utility model is at least to solve one of the technical problems in prior art, provide a kind of dispersing device of laser particle size instrument dry method measuring system, compressed air can be avoided turbulent, affect dispersion effect.
[0007] The utility model provides a kind of dispersion device of laser particle size instrument dry method measuring system, including base body;Mixing chamber, the mixing chamber is opened in the base body;Feed cavity, the feed cavity is located directly above the mixing chamber, the output end of the feed cavity is communicated with the mixing chamber, sample enters mixing chamber by the feed cavity;Air inlet chamber, the air inlet chamber is opened in the base body, and the air inlet chamber side end is equipped with connecting port;Air inlet pipe, the air inlet pipe is detachably arranged on the base body, and the air inlet pipe is located in the air inlet chamber, and the output end of the air inlet pipe is communicated with the mixing chamber;Dispersion pipe, the dispersion pipe is detachably arranged in the base body, and the input end of the dispersion pipe is communicated with the output end of the mixing chamber;Venturi tube, the venturi tube is detachably arranged on the base body, and the input end of the venturi tube is communicated with the output end of the dispersion pipe;Air inlet connector, the air inlet connector is arranged on the base body, and the air inlet connector is communicated with the air inlet chamber by the connecting port.
[0008] According to the dispersion device of laser particle size instrument dry method measuring system provided by the utility model, the material falls through the feed cavity and enters the mixing chamber, while the compressed air is connected to the air inlet chamber from the air inlet connector, and finally enters the mixing chamber through the air inlet pipe. The compressed air pushes the material together into the dispersion pipe in the mixing chamber, and after passing through the dispersion pipe and the venturi tube, the material is completely dispersed, which is convenient for subsequent detection. The compressed air first enters the air inlet chamber, and then enters the mixing chamber through the integration of the air inlet pipe, so that the airflow entering the mixing chamber is uniform, avoiding the influence of airflow turbulence on the dispersion performance.
[0009] According to the dispersion device of laser particle size instrument dry method measuring system provided by the utility model, the air inlet pipe includes a pipe body, a plurality of air inlet holes and an air outlet hole. The plurality of air inlet holes are evenly distributed along the radial direction of the pipe body. The plurality of air inlet holes are communicated with the air outlet hole. The output end of the air outlet hole is communicated with the input end of the mixing chamber.
[0010] According to the dispersion device of laser particle size instrument dry method measuring system provided by the utility model, the air inlet chamber and the air inlet pipe are airtight cavities. After the compressed air flows into the air inlet connector, it enters the air inlet chamber through the connecting port, and then enters the pipe body through a plurality of air inlet holes. Finally, it is discharged through the air outlet hole.
[0011] According to the dispersion device of laser particle size instrument dry method measuring system provided by the utility model, a dispersion pipe mounting groove is formed in the base body. The dispersion pipe is inserted into the dispersion pipe mounting groove. A butt joint groove is formed in the dispersion pipe. One end of the venturi tube is inserted into the butt joint groove.
[0012] The utility model discloses a kind of dispersing devices of dry method measuring system of laser particle size instrument, further including Venturi tube fixing device, the Venturi tube fixing device includes connecting block, fixed plate, the connecting block is inserted in the base, the dispersing pipe one end is inserted in the connecting block, the fixed plate is detachably fixed on the connecting block by fastener, connection ring is provided on the Venturi tube, the connection ring is located between the connecting block and the fixed plate.
[0013] The utility model discloses a kind of dispersing devices of dry method measuring system of laser particle size instrument, the first sealing groove is placed with sealing ring in the first sealing groove, which is arranged in the one end of the mixing cavity of the dispersing pipe mounting groove.
[0014] The utility model discloses a kind of dispersing devices of dry method measuring system of laser particle size instrument, second sealing groove is placed with sealing ring in the second sealing groove, which is arranged on the connecting block.
[0015] The utility model discloses a kind of dispersing devices of dry method measuring system of laser particle size instrument, the dispersing pipe is made of zirconia ceramic.
[0016] The utility model discloses a kind of dispersing devices of dry method measuring system of laser particle size instrument, further including second dispersing pipe and third dispersing pipe, dispersing cavity is equipped in the dispersing pipe, the second dispersing pipe and the third dispersing pipe, the inner cavity size of the dispersing cavity in the dispersing pipe, the second dispersing pipe and the third dispersing pipe is different, the second dispersing pipe and the third dispersing pipe can replace the dispersing pipe.
[0017] Additional aspects and advantages of the present application will be described in the following description, some of which will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model is further illustrated below in connection with drawings and embodiment;
[0019] Figure 1 It is the structure schematic view of preferred embodiment of the utility model;
[0020] Figure 2 It is the sectional view of preferred embodiment of the utility model;
[0021] Figure 3 It is the structure schematic view of base of preferred embodiment of the utility model;
[0022] Figure 4 It is the sectional view of base of preferred embodiment of the utility model;
[0023] Figure 5 It is the structure schematic view of air inlet pipe of preferred embodiment of the utility model;
[0024] Figure 6 A cross-sectional view of the air inlet pipe of the preferred embodiment of the present application;
[0025] Figure 7 An assembly structure diagram of the dispersion pipe, the Venturi tube and the Venturi tube fixing device of the preferred embodiment of the present application;
[0026] Figure 8 A cross-sectional view of the dispersion pipe, the Venturi tube and the Venturi tube fixing device of the preferred embodiment of the present application;
[0027] Figure 9 A cross-sectional view of the dispersion pipe of the preferred embodiment of the present application;
[0028] Figure 10 A cross-sectional view of the second dispersion pipe of the preferred embodiment of the present application;
[0029] Figure 11 A cross-sectional view of the third dispersion pipe of the preferred embodiment of the present application. DETAILED DESCRIPTION
[0030] This part will describe the specific embodiments of the present application in detail, the preferred embodiment of the present application is shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.
[0031] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0032] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.
[0034] Referring to Figures 1 to 11 , a dispersion device of a laser particle size analyzer dry measurement system comprises a base body 10, a mixing cavity 20, a feeding cavity 30, an air inlet cavity 40, an air inlet pipe 50, a dispersion pipe 60, a Venturi tube 70 and an air inlet joint 80. The mixing cavity 20 is opened on the base body 10, and the feeding cavity 30 is located directly above the mixing cavity 20. The output end of the feeding cavity 30 is in communication with the mixing cavity 20. The sample enters the mixing cavity 20 through the feeding cavity 30. The air inlet cavity 40 is opened on the base body 10. The air inlet cavity 40 is provided with a connecting port 41 at the side end. The air inlet pipe 50 is detachably arranged on the base body 10. The air inlet pipe 50 is located in the air inlet cavity 40. The output end of the air inlet pipe 50 is in communication with the mixing cavity 20. The dispersion pipe 60 is detachably arranged in the base body 10. The input end of the dispersion pipe 60 is in communication with the output end of the mixing cavity 20. The Venturi tube is detachably arranged on the base body 10. The input end of the Venturi tube 70 is in communication with the output end of the dispersion pipe 60. The air inlet joint 80 is arranged on the base body 10, and the air inlet joint 80 is in communication with the air inlet cavity 40 through the connecting port 41.
[0035] It can be understood that the material falls through the feeding cavity 30 into the mixing cavity 20, and the compressed air enters the air inlet cavity 40 from the air inlet joint 80 and finally enters the mixing cavity 20 through the air inlet pipe 50. The compressed air pushes the material together into the dispersion pipe 60 in the mixing cavity 20. After passing through the dispersion pipe 60 and the Venturi tube 70, the material is completely dispersed, which is convenient for subsequent detection.
[0036] It can be understood that in the embodiment of the utility model, the compressed air first enters the air inlet cavity 40, and then enters the mixing cavity 20 through the integration of the air inlet pipe 50, so that the airflow entering the mixing cavity 20 is uniform, avoiding the influence of airflow disorder on the dispersion performance.
[0037] It can be understood that in the embodiment of the utility model, the dispersion pipe 60 is detachably connected with the base body 10, which can realize quick replacement of the dispersion pipe 60 and is convenient for adapting to different material dispersion.
[0038] Referring to Figures 1 to 6 , the air inlet pipe 50 comprises a pipe body 51, a plurality of air inlet holes 52 and an air outlet hole 53. The plurality of air inlet holes 52 are evenly distributed along the radial direction of the pipe body 51. The plurality of air inlet holes 52 are all in communication with the air outlet hole 53. The output end of the air outlet hole 53 is in communication with the input end of the mixing cavity 20.
[0039] Referring to Figure 2 , the air inlet cavity 40 and the air inlet pipe 50 are airtight cavities. After the compressed air flows into the air inlet joint 80, it enters the air inlet cavity 40 through the connecting port 41 and then enters the pipe body 51 through the plurality of air inlet holes 52, and finally is discharged through the air outlet hole 53.
[0040] It should be noted that when the air inlet pipe 50 is inserted into the air inlet cavity 40, the air inlet cavity 40 leaves a closed space, when the compressed gas enters the closed space in the air inlet cavity 40, the air enters the pipe body 51 along the air inlet hole 52, and after the turbulent airflow becomes stable, it enters the mixing cavity 20 through the air outlet hole 53 and mixes with the material.
[0041] With reference to Figure 4 and Figure 9 , the base body 10 is provided with a dispersion pipe mounting groove 11. The dispersion pipe 60 is inserted into the dispersion pipe mounting groove 11. The dispersion pipe 60 is provided with a butt joint groove 61. The Venturi tube 70 is inserted into the butt joint groove 61.
[0042] It should be noted that the dispersion pipe 60 and the Venturi tube 70 are detachably arranged on the base body 10, when the type of dispersed material needs to be replaced, different dispersion pipes 60 can be replaced, without the need to replace the entire dispersion device, thereby reducing the cost of the equipment.
[0043] With reference to Figure 7 and Figure 8 , the dispersion device of the laser particle size instrument dry measurement system further comprises a Venturi tube fixing device 90. The Venturi tube fixing device 90 comprises a connecting block 91 and a fixing plate 92. The connecting block 91 is inserted into the base body 10. One end of the dispersion pipe 60 is inserted into the connecting block. The fixing plate 92 is detachably fixed on the connecting block 91 by fasteners. The Venturi tube 70 is provided with a connecting ring 71, and the connecting ring 71 is located between the connecting block 91 and the fixing plate 92.
[0044] It should be noted that the detachable connection of the Venturi tube 70 and the dispersion pipe 60 with the base body can be realized through the Venturi tube fixing device 90.
[0045] It should be noted that in some embodiments of the utility model, the fixing mode of the connecting block 91 and the base body 10 can be plug-in (interference fit), or threaded connection, clamping and the like.
[0046] With reference to Figure 2 , the dispersion pipe mounting groove 11 is provided with a first sealing groove 111 close to one end of the mixing cavity 20. A sealing ring is placed in the first sealing groove 111.
[0047] It should be noted that the first sealing groove 111 cooperates with the sealing ring to ensure the air tightness between the mixing cavity 20 and the dispersion pipe 60, so as to prevent air leakage from affecting the dispersion effect.
[0048] With reference to Figure 8 , the connecting block 91 is provided with a second sealing groove 911. A sealing ring is placed in the second sealing groove 911.
[0049] It is worth mentioning that the second sealing groove 911 matched with the sealing ring can guarantee the air tightness between the Venturi tube 70 and the dispersion tube 60, and prevent the leakage from affecting the dispersion effect.
[0050] It is worth mentioning that in the embodiment of the present application, the dispersion tube 60 is made of zirconia ceramic. The dispersion tube 60 made of zirconia ceramic has strong wear resistance and can ensure stable measurement during long-term use.
[0051] Referring to Figures 7 to 11 The dispersion device of the laser particle size analyzer dry measurement system further comprises a second dispersion tube 60a and a third dispersion tube 60b. The dispersion tube 60, the second dispersion tube 60a and the third dispersion tube 60b are all provided with a dispersion cavity 62. The inner cavity sizes of the dispersion cavities 62 in the dispersion tube 60, the second dispersion tube 60a and the third dispersion tube 60b are different. The second dispersion tube 60a and the third dispersion tube 60b can replace the dispersion tube 60.
[0052] It is worth mentioning that when different materials need to be dispersed and measured, the operator can match the dispersion tube 60, the second dispersion tube 60a or the third dispersion tube 60b according to different sample characteristics. A set of dispersion devices covers extreme cases such as fragile and difficult dispersion, and has strong usability.
[0053] The above has made a detailed description of the embodiments of the present application in combination with the drawings, but the present application is not limited to the above embodiments. Within the knowledge range of ordinary skilled persons in the technical field, various changes can be made without departing from the purpose of the present application.
Claims
1. A dispersion device for a laser particle sizer dry measurement system, characterized in that, It comprises: a base body (10); a mixing cavity (20) formed in the base body (10); a feeding cavity (30) located directly above the mixing cavity (20), the output end of the feeding cavity (30) being in communication with the mixing cavity (20), and the sample entering the mixing cavity (20) through the feeding cavity (30); an air inlet cavity (40) formed in the base body (10), the air inlet cavity (40) being provided with a connecting port (41) at the side end; an air inlet pipe (50) detachably arranged on the base body (10), the air inlet pipe (50) being located in the air inlet cavity (40), and the output end of the air inlet pipe (50) being in communication with the mixing cavity (20); a dispersion pipe (60) detachably arranged in the base body (10), the input end of the dispersion pipe (60) being in communication with the output end of the mixing cavity (20); a Venturi tube (70) detachably arranged on the base body (10), the input end of the Venturi tube (70) being in communication with the output end of the dispersion pipe (60); an air inlet connector (80) arranged on the base body (10), the air inlet connector (80) being in communication with the air inlet cavity (40) through the connecting port (41).
2. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 1, characterized in that, The air inlet pipe (50) comprises a pipe body (51), a plurality of air inlet holes (52) and an air outlet hole (53), the plurality of air inlet holes (52) being uniformly distributed along the pipe body (51), and each of the plurality of air inlet holes (52) being in communication with the air outlet hole (53), the output end of the air outlet hole (53) being in communication with the input end of the mixing cavity (20).
3. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 2, characterized in that, The air inlet cavity (40) and the air inlet pipe (50) form a closed cavity, compressed air flows into the air inlet connector (80), then enters the air inlet cavity (40) through the connecting port (41), and then enters the pipe body (51) through the plurality of air inlet holes (52), and finally is discharged through the air outlet hole (53).
4. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 1, characterized in that, The base body (10) is provided with a dispersion pipe mounting groove (11), the dispersion pipe (60) is inserted into the dispersion pipe mounting groove (11), the dispersion pipe (60) is provided with a butt joint groove (61), and one end of the Venturi tube (70) is inserted into the butt joint groove (61).
5. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 4, characterized in that, It also comprises a Venturi tube fixing device (90), the Venturi tube fixing device (90) comprising a connecting block (91) and a fixing plate (92), the connecting block (91) being inserted into the base body (10), one end of the dispersion pipe (60) being inserted into the connecting block, the fixing plate (92) being detachably fixed on the connecting block (91) by fasteners, and the Venturi tube (70) being provided with a connecting ring (71), the connecting ring (71) being located between the connecting block (91) and the fixing plate (92).
6. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 4, characterized in that, The dispersion pipe mounting groove (11) is provided with a first sealing groove (111) near one end of the mixing cavity (20), and a sealing ring is placed in the first sealing groove (111).
7. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 5, characterized in that, A second sealing groove (911) is formed in the connecting block (91), and a sealing ring is placed in the second sealing groove (911).
8. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 1, characterized in that, The dispersion pipe (60) is made of zirconia ceramic.
9. The dispersion device of a dry measurement system of a laser particle size analyzer according to claim 1, characterized in that, A second dispersion pipe (60a) and a third dispersion pipe (60b) are further included, and dispersion cavities (62) are arranged in the dispersion pipe (60), the second dispersion pipe (60a) and the third dispersion pipe (60b), the inner cavity sizes of the dispersion cavities (62) in the dispersion pipe (60), the second dispersion pipe (60a) and the third dispersion pipe (60b) are different, and the second dispersion pipe (60a) and the third dispersion pipe (60b) can replace the dispersion pipe (60).