A sealing device of a homogenizer and a homogenizer

Abstract

The application provides a sealing device of a homogenizer and the homogenizer. The sealing device comprises a flooding plug sleeved on the outer periphery of a homogenizer plunger and a flow guide ring, the flow guide ring and the flooding plug are arranged in sequence along the axial direction of the plunger, and the flow guide ring is located on the side of the flooding plug close to the homogenizer bin and is used for guiding the slurry in the bin to flow into the flooding plug. The flow guide ring comprises a scraping part surrounding the plunger, one end of the scraping part close to the bin is attached to the outer periphery of the plunger, and along the axial direction, a gap is left between the other end of the scraping part away from the bin and the outer periphery of the plunger, so that the scraping part forms an inclined structure and is used for guiding the slurry in the bin to flow into the flooding plug, avoiding the leakage of the slurry between the plunger and the flooding plug and causing the wear of the sealing device; meanwhile, the contact area of the scraping part and the plunger is reduced, the pressure of the scraping part on the plunger is increased, and the scraping part is helpful to completely scrape off the slurry adhered to the plunger.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and in particular to a sealing device for a homogenizer and a homogenizer. Background Technology

[0002] A homogenizer is used to homogenize slurry supplied by a silo by forcing it through a special internal cavity under ultra-high pressure and high speed. This causes chemical or physical changes in the slurry, resulting in homogenization. The sealing device of the homogenizer is a key component used to prevent slurry leakage or the intrusion of external impurities.

[0003] In existing homogenizers, the relative movement between the plug and plunger of the sealing device during operation makes sealing between them difficult, often resulting in slurry entering between the plug and the plunger, causing wear on the sealing device. Summary of the Invention

[0004] This application provides a sealing device for a homogenizer, which has a good sealing effect, can scrape off the slurry adhering to the plunger, extend the service life of the sealing device, and ensure the stability and reliability of the sealing device.

[0005] In a first aspect, embodiments of this application provide a sealing device for a homogenizer, including a plug and a guide ring. The plug and the guide ring are sleeved on the outer periphery of the plunger of the homogenizer. Along the axial direction of the plunger, the guide ring and the plug are arranged sequentially, with the guide ring located on the side of the plug closer to the hopper of the homogenizer. The guide ring includes a scraping portion surrounding the plunger, with one end of the scraping portion axially close to the hopper conforming to the outer peripheral surface of the plunger. Along the axial direction of the plunger, a gap is left between the end of the scraping portion away from the hopper and the outer peripheral surface of the plunger.

[0006] This application incorporates a guide ring and a flood plug around the outer periphery of a plunger. The plunger reciprocates to push slurry into the guide ring, which guides the slurry into the flood plug, preventing slurry from flowing from the hopper into the space between the guide ring and the plunger. The flood plug fits snugly against the outer periphery of the plunger, forming a sealed structure to prevent slurry leakage into the gap between the flood plug and the plunger, thus preventing seal failure. A scraper section surrounding the plunger is provided on the guide ring, and the plunger can reciprocate relative to the scraper section, allowing the scraper section to remove slurry adhering to the outer periphery of the plunger, preventing slurry leakage into the space between the plunger and the flood plug and causing wear. Furthermore, by setting a gap between the end of the scraper away from the hopper and the outer periphery of the plunger along the axial direction of the plunger, the scraper forms an inclined structure to guide the slurry from the hopper into the flood plug, preventing slurry leakage between the plunger and the flood plug and causing wear on the sealing device; at the same time, it reduces the contact area between the scraper and the plunger, increases the pressure of the scraper on the plunger, and helps the scraper to thoroughly scrape off the slurry adhering to the plunger.

[0007] As an optional implementation, the guide ring has a first groove on the surface axially close to the hopper, the first groove has a guide channel on the bottom wall axially penetrating the guide ring, the plunger has a second groove on the side close to the guide ring, the guide channel communicates with the second groove, and the first groove includes a scraping part near the lower side wall of the plunger in the radial direction of the plunger.

[0008] By setting the first groove, the guide channel and the second groove to be arranged in sequence along the axial direction of the plunger, and the two ends of the guide channel are connected to the first groove and the second groove respectively, the slurry can flow from the first groove into the second groove through the guide channel. More slurry can increase the pressure of the plug, thereby enhancing the sealing effect of the plug.

[0009] As an alternative implementation, the surface of the lower sidewall away from the plunger in the radial direction includes a first inclined surface, and the surface of the lower sidewall near the plunger includes a second inclined surface. In the axial direction, the inclination direction of the second inclined surface is consistent with the inclination direction of the first inclined surface.

[0010] By setting the inclined structure of the second inclined surface, the manufacturing material of the guide ring is saved, thereby reducing the overall weight of the sealing device. Moreover, the second inclined surface has a better scraping effect on the slurry on the plunger compared to the plane that is completely in contact with the plunger.

[0011] As an alternative implementation, in the axial direction, the first inclined surface extends from the lower sidewall near the end of the hopper to the bottom wall of the first groove.

[0012] By setting a first inclined surface extending to the bottom wall of the first groove, the slurry is precisely guided into the first groove, avoiding leakage of some slurry between the first inclined surface and the first groove, which would cause wear on the sealing device and effectively improve the sealing effect of the sealing device.

[0013] As an alternative implementation, at least a portion of the guide ring extends from one end of the guide ring near the hopper into the second groove of the plug, and the guide channel extends axially to the bottom of the second groove.

[0014] By setting the guide channel of the guide ring to extend into the second groove of the plug, the slurry is precisely guided into the second groove of the plug, avoiding slurry leakage between the guide channel and the second groove, which would cause wear to the sealing device and effectively improve the sealing effect of the sealing device.

[0015] As an optional implementation, the inner wall of the first groove includes a third inclined surface. Along the axial direction, the distance between the end of the third inclined surface near the hopper and the outer peripheral surface of the plunger is greater than the distance between the other end of the third inclined surface near the plunger and the outer peripheral surface of the plunger. The first inclined surface and the third inclined surface are arranged opposite to each other in the radial direction.

[0016] By setting the inclined structure and direction of the third inclined surface of the guide ring to cooperate with the first inclined surface to guide the slurry into the guide channel, some slurry is prevented from leaking into the space between the plug and the plunger instead of flowing into the guide channel, thereby enhancing the sealing effect of the sealing device.

[0017] As an alternative implementation, the sealing device of the homogenizer includes a housing for assembling the flow guide ring and the plunger, the housing being fitted around the outer periphery of the plunger and surrounding the outer periphery of the flow guide ring and the plunger.

[0018] By setting the shell around the outer periphery of the guide ring and the flood plug, the flood plug and the guide ring are enclosed between the plunger and the shell to form a receiving cavity. The plunger pushes the slurry into the receiving cavity, reducing the flow space of the slurry. It is then delivered to the flood plug, increasing the pressure of the slurry on the flood plug, thereby enhancing the sealing effect of the flood plug.

[0019] As an optional implementation, the plug also includes a first lip and a second lip. Along the axial direction, the first lip and the second lip are arranged at intervals. Along the radial direction, both the first lip and the second lip are located on the side of the plug closer to the plunger and surround the outer circumferential surface of the plunger.

[0020] By positioning both the first and second lips on the side of the plug closer to the plunger and surrounding the outer circumference of the plunger, the first and second lips can scrape away slurry from the plunger during its reciprocating motion relative to them, thus improving the plug's slurry-scraping ability. Furthermore, the first and second lips layer by layer prevent slurry from flowing between the plug and the plunger, improving the plug's sealing effect and extending the service life of the sealing device.

[0021] As an optional implementation, the plug also includes a third lip and a fourth lip, which are arranged alternately along the axial direction. The third lip and the fourth lip are located on the side of the plug closer to the shell and surround the inner circumferential surface of the shell.

[0022] By setting the third and fourth lips to be located on the side of the plug closer to the shell and surrounding the inner circumference of the shell, the slurry can be prevented from leaking between the shell and the plug through the third and fourth lips, thus improving the sealing effect of the plug.

[0023] As an optional implementation, the sealing device of the homogenizer further includes at least one first elastic baffle and at least one second elastic baffle. The at least one first elastic baffle and at least one second elastic baffle are sleeved on the outer peripheral surface of the plunger. Along the axial direction, the guide ring, the flood plug, the first elastic baffle and the second elastic baffle are arranged in sequence. Along the axial direction, the two ends of the first elastic baffle are used to abut against the flood plug and the second elastic baffle respectively. Along the radial direction, the two ends of the second elastic baffle are used to abut against the plunger and the housing respectively.

[0024] By setting a first elastic baffle that abuts against the plunger and a second elastic baffle in the axial direction, a buffer zone is provided for the sealing device in the axial direction, thereby preventing the plunger from vibrating in the axial direction due to its reciprocating motion. Furthermore, by setting a second elastic baffle that elastically abuts against both the plunger and the housing in the radial direction, a buffer zone is provided for the sealing device in the radial direction, thereby preventing the plunger from vibrating in the radial direction due to its reciprocating motion. The use of the first and second elastic baffles ensures the stability of the sealing device during plunger operation.

[0025] Secondly, this application provides a homogenizer, including the sealing device of the homogenizer described above.

[0026] By using the sealing device of the homogenizer described above, the slurry adhering to the plunger can be scraped off, reducing the wear of the sealing device caused by slurry flowing between the plunger and the flood plug, and extending the service life of the flood plug. Furthermore, by setting an inclined structure for the guide ring, the slurry is efficiently guided into the flood plug, increasing the pressure of the flood plug and thus enhancing its sealing effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a sealing device for a homogenizer provided in one embodiment of this application;

[0028] Figure 2 yes Figure 1 A magnified view of a specific area;

[0029] Figure 3 This is a side view of a flow guide ring provided in one embodiment of this application;

[0030] Figure 4 This is a side view of a flow guide ring and a flow plug provided in one embodiment of this application;

[0031] Figure 5 Figure 1 Another magnified view of a part;

[0032] Figure 6 This is a cross-sectional view of a sealing device for a homogenizer with a housing provided in one embodiment of this application;

[0033] Figure 7 This is a side view of a pan-aperture provided in one embodiment of this application;

[0034] Figure 8 This is a cross-sectional view of the sealing device of the homogenizer provided in the embodiments of this application;

[0035] Figure 9 This is another side view of the pan-seal provided in one embodiment of this application;

[0036] Figure 10 This is another cross-sectional view of the sealing device of the homogenizer provided in one embodiment of this application;

[0037] Figure 11 This is a side view of a first or second elastic baffle provided in one embodiment of this application;

[0038] Figure 12 This is a schematic diagram of a sealing device for a homogenizer with a first elastic baffle provided in one embodiment of this application;

[0039] Figure 13 This is a third cross-sectional view of the sealing device of a homogenizer provided in one embodiment of this application;

[0040] Figure 14 This is a side view of the sealing device of a homogenizer provided in one embodiment of this application.

[0041] Explanation of reference numerals in the attached figures

[0042] 1- Sealing device of the homogenizer; 2- Hopper;

[0043] 10-Plunger;

[0044] 20-Pinus; 21-Second groove; 22-First lip; 23-Second lip; 24-Third lip; 25-Fourth lip;

[0045] 30 - Guide ring; 31 - Scraper section; 311 - First inclined surface; 32 - First groove; 33 - Guide channel; 312 - Second inclined surface; 321 - Third inclined surface; 322 - Lower sidewall; 323 - Bottom wall of the first groove; 324 - Fourth inclined surface;

[0046] 40 - Shell; 41 - Receiving cavity; 42 - Side wall; 43 - First bottom wall; 44 - Second bottom wall;

[0047] 431 - First mounting hole; 441 - Second mounting hole;

[0048] 50 - First elastic baffle;

[0049] 60 - Second elastic baffle;

[0050] L1 - Gap; L2 - First distance; L3 - Second distance. Detailed Implementation

[0051] The embodiments of this application are described below with reference to the accompanying drawings.

[0052] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0053] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0054] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0055] In the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] A homogenizer is used to homogenize slurry supplied by a silo by forcing it through a special internal cavity under ultra-high pressure and high speed. This causes chemical or physical changes in the slurry, resulting in homogenization. The sealing device of the homogenizer is a key component used to prevent slurry leakage or the intrusion of external impurities.

[0058] In existing homogenizers, poor sealing of the sealing device's plug during operation allows slurry to enter between the plunger and the plug, causing wear on the sealing device. Furthermore, the lack of a scraping module in the existing homogenizer's sealing device makes it difficult to remove the slurry between the plunger and the plug. This causes friction between the slurry and the plunger during its reciprocating motion, leading to wear and seal failure.

[0059] Firstly, the sealing device 1 of the homogenizer provided in this application embodiment is suitable for homogenizing equipment and is used for homogenizing solid slurry. During use, it involves scraping the plunger 10, guiding the slurry flow, and sealing the overflow plug 20. Please refer to... Figure 1 , Figure 1 This is a schematic diagram of a sealing device 1 for a homogenizer according to one embodiment of this application. The sealing device 1 includes a plug 20 and a guide ring 30. The guide ring 30 guides the slurry into the plug 20. The plug 20 has a sealing function to prevent slurry leakage during homogenizer operation, thus preventing disruption to the normal operation of the homogenizer. The plug 20 and the guide ring 30 are sleeved on the outer periphery of the plunger 10 of the homogenizer. The plunger 10 reciprocates relative to the plug 20 and the guide ring 30 along the axial direction of the plunger 10 to push the slurry into the plug 20, ensuring the continuity of slurry entry into the plug 20. Simultaneously, a larger amount of slurry, pushed by the plunger 10, enters the plug 20 from the guide ring 30, increasing the pressure at the plug 20 and thus improving the sealing effect of the plug 20. Along the radial direction of the plunger 10, at least a portion of the plug 20 on the side closest to the plunger 10 is in contact with the outer periphery of the plunger 10, so that the plug 20 can form a sealing structure with the plunger 10 to prevent slurry leakage into the gap between the plug 20 and the plunger 10, causing wear and leading to seal failure. Along the axial direction of the plunger 10, the guide ring 30 and the plug 20 are arranged sequentially, with the guide ring 30 located on the side of the plug 20 closest to the homogenizer's hopper 2, so that the guide ring 30 can guide most of the slurry from the hopper 2 into the plug 20, reducing the probability of slurry flowing between the plug 20 and the plunger 10. Understandably, the radial direction of the plunger 10 is perpendicular to the axial direction of the plunger 10. The homogenizer's hopper 2 is used to store the slurry before entering the homogenization process and to continuously supply slurry for the operation of the homogenizer.

[0060] Please see Figure 1 The guide ring 30 includes a scraper portion 31 surrounding the plunger 10. The scraper portion 31 is located on the side of the guide ring 30 closest to the plunger 10, and in the axial direction of the plunger 10, the end of the scraper portion 31 closest to the hopper 2 is in contact with the outer peripheral surface of the plunger 10, so that the scraper portion 31 can contact the plunger 10 to scrape off the slurry adhering to it during the reciprocating motion of the plunger 10, preventing the slurry from entering between the plunger 10 and the overflow plug 20 and causing wear. In the axial direction of the plunger 10, a gap L1 is left between the end of the scraper portion 31 away from the hopper 2 and the outer peripheral surface of the plunger 10, so that the scraper portion 31 is inclined in the axial direction of the plunger 10, which is used to guide the slurry into the overflow plug 20 and enhance the scraping effect of the scraper portion 31 on the plunger 10.

[0061] Specifically, along the axial direction of the plunger 10, one end of the scraper 31 is in contact with the outer peripheral surface of the plunger 10, while the other end of the scraper 31 is spaced apart from the outer peripheral surface of the plunger 10. This reduces the contact area between the scraper 31 and the plunger 10, increases the pressure exerted by the scraper 31 on the plunger 10, and enhances the scraping force of the scraper 31 on the slurry on the plunger 10, thereby effectively removing residual slurry from the surface of the plunger 10. Simultaneously, the scraper 31 is inclined from the flood plug 20 towards the side closer to the hopper 2, guiding the slurry from the hopper 2 into the flood plug 20, preventing slurry leakage between the plunger 10 and the guide ring 30, which could lead to seal failure. It is understandable that by setting the inclined structure of the scraper 31, compared to the scraper 31 being completely in contact with the plunger 10, the manufacturing material of the guide ring 30 is saved, thus reducing the overall manufacturing cost of the homogenizer.

[0062] In some embodiments, the surface of the scraper 31 away from the plunger 10 includes a first inclined surface 311. In the axial direction, the distance between the end of the first inclined surface 311 away from the hopper 2 and the outer peripheral surface of the plunger 10 is greater than the distance between the end of the first inclined surface 311 near the hopper 2 and the outer peripheral surface of the plunger 10, so as to guide the slurry in the hopper 2. In this embodiment, the first inclined surface 311 is linearly inclined along the axial direction of the plunger 10.

[0063] This application incorporates a guide ring 30 and a flood plug 20 fitted around the outer periphery of the plunger 10. The plunger 10 reciprocates to push the slurry into the guide ring 30, which guides the slurry into the flood plug 20, preventing slurry from flowing from the hopper 2 into the space between the guide ring 30 and the plunger 10. A scraper section 31 is provided on the guide ring 30 surrounding the plunger 10, allowing the plunger 10 to reciprocate relative to the scraper section 31. This allows the scraper section 31 to remove slurry adhering to the outer periphery of the plunger 10, preventing slurry leakage between the plunger 10 and the flood plug 20 and causing wear. The scraper section 31 is positioned such that one end of the scraper section 31, closer to the hopper 2 in the axial direction of the plunger 10, is in contact with the outer circumferential surface of the plunger 10. A gap L1 is left between the end of the scraper section 31 furthest from the hopper 2 and the outer circumferential surface of the plunger 10, creating an inclined structure for the scraper section 31. This guides the slurry from the hopper 2 into the flood plug 20, preventing slurry leakage between the plunger 10 and the flood plug 20 and thus avoiding wear on the sealing device. Simultaneously, the contact area between the scraper section 31 and the plunger is reduced, increasing the pressure exerted by the scraper section 31 on the plunger 10, which helps to thoroughly scrape away the slurry adhering to the plunger 10.

[0064] Please see Figure 1 , Figure 2 and Figure 3 , Figure 2 yes Figure 1 A magnified view of a part. Figure 3This is a side view of a guide ring 30 provided in one embodiment of this application. The guide ring 30 has a first groove 32 on the surface of the plunger 10 near the hopper 2 along the axial direction. The first groove 32 guides the slurry in the hopper 2 into the flood plug 20. A guide channel 33 is provided on the bottom wall of the first groove 32, penetrating the bottom wall of the first groove 32 along the axial direction of the plunger 10, i.e., penetrating the bottom wall of the guide ring 30, so that the slurry can flow into the guide channel 33 through the first groove 32 and then into the flood plug 20. Along the axial direction of the plunger 10, a second groove 21 is provided on the side of the flood plug 20 near the guide ring 30. The guide channel 33 communicates with the second groove 21, so that the slurry in the guide channel 33 can flow into the second groove 21. A larger amount of slurry in the second groove 21 can increase the pressure of the flood plug 20, thereby enhancing the sealing effect between the flood plug 20 and the plunger 10.

[0065] By arranging the hopper 2, the first groove 32, the guide channel 33, and the second groove 21 in sequence along the axial direction of the plunger 10, and with the two ends of the guide channel 33 connected to the first groove 32 and the second groove 21 respectively, the slurry can flow from the first groove 32 into the second groove 21 through the guide channel 33. More slurry can increase the pressure of the plug 20, thereby enhancing the sealing effect of the plug 20.

[0066] In some embodiments, along the axial direction of the plunger 10, the opening of the guide channel 33 near the second groove 21 is opposite to the second groove 21, so that the slurry in the guide channel 33 can flow directly into the second groove 21, reducing the flow path of the slurry and enhancing the flow efficiency of the slurry; at the same time, it can prevent the slurry between the second groove 21 and the guide channel 33 from leaking between the plunger 10 and the plug 20, affecting the sealing effect. In some embodiments, the guide channels 33 are spaced apart and evenly arranged along the circumferential direction of the plunger 10, so that the slurry can flow evenly around the plunger 10, avoiding excessively large or small local flow rates in the plunger 10, which could lead to instability in the homogenizer operation. At the same time, it ensures that the slurry flowing into the plug 20 is distributed throughout the plug 20, avoiding excessive local pressure in the plug 20, which could affect the sealing effect.

[0067] Please see Figure 1 , Figure 2 and Figure 3In some embodiments, the first groove 32 includes a scraper 31 near the lower sidewall 322 of the plunger 10 in the radial direction. This scraper removes slurry adhering to the plunger 10, preventing leakage between the plunger 10 and the flood plug 20 and thus avoiding seal failure. The scraper 31 is inclined, causing the opening of the first groove 32 to expand along the direction from the flood plug 20 to the hopper 2, thereby guiding the slurry into the guide channel 33 and reducing the probability of slurry leakage between the flood plug 20 and the plunger 10. In some embodiments, the side of the first groove 32 furthest from the plunger 10 in the radial direction is the upper sidewall. Along the axial direction of the plunger 10, the distance between the lower sidewall 322 and the upper sidewall of the first groove 32 near the hopper 2 is greater than the distance between the lower sidewall 322 and the upper sidewall of the first groove 32 near the flood plug 20, thereby guiding the slurry in the hopper 2 towards the flood plug 20.

[0068] Please see Figure 1 , Figure 2 and Figure 3 The lower sidewall 322 of the first groove 32 near the surface of the plunger 10 also includes a second inclined surface 312. The inclination direction of the second inclined surface 312 is consistent with the inclination direction of the first inclined surface 311, and the second inclined surface 312 is at least partially in contact with the plunger 10 to scrape off the slurry adhering to the surface of the plunger 10. Specifically, when the plunger 10 reciprocates relative to the guide ring 30, both the guide ring 30 and the second inclined surface 312 are stationary relative to the plunger 10. At least a portion of the second inclined surface 312 is in contact with the plunger 10, so that the contact point between the second inclined surface 312 and the slurry adhering to the plunger 10 forms a dynamic scraping force, thereby effectively removing the residual slurry from the surface of the plunger 10.

[0069] In some embodiments, along the axial direction of the plunger 10, one end of the second inclined surface 312 near the hopper 2 is in contact with the outer peripheral surface of the plunger 10, while the other end of the second inclined surface 312 near the hopper 20 is spaced apart from the outer peripheral surface of the plunger 10. This reduces the contact area between the scraper 31 and the plunger 10, increases the pressure of the scraper 31 on the plunger 10, and improves the scraping force of the scraper 31 on the slurry on the plunger 10, thereby effectively removing the slurry residue from the surface of the plunger 10. It is understood that by setting the inclined structure of the second inclined surface 312, compared to the second inclined surface 312 being completely in contact with the outer peripheral surface of the plunger 10, the manufacturing material of the guide ring 30 is also saved, thereby saving the overall manufacturing cost of the homogenizer and reducing the overall weight of the homogenizer.

[0070] Please see Figure 1 and Figure 4 , Figure 4This is a side view of the guide ring 30 and the flood plug 20 provided in one embodiment of this application. In the radial direction of the plunger 10, the surface of the lower sidewall 322 of the first groove 32 away from the plunger 10 is a first inclined surface 311. In the axial direction of the plunger 10, the first inclined surface 311 extends from the end of the lower sidewall 322 of the first groove 32 near the hopper 2 to the bottom wall 323 of the first groove 32, so as to accurately guide the slurry transferred from the hopper 2 into the first groove 32, and then flow into the flood plug 20 from the guide channel 33 of the first groove 32, avoiding some slurry leakage between the plunger 10 and the flood plug 20 and causing wear.

[0071] In some embodiments, along the axial direction of the plunger 10, the end of the first inclined surface 311 near the end cap 20 is connected to the sidewall of the opening of the guide channel 33 to guide the slurry directly into the guide channel 33. In some embodiments, the first inclined surface 311 and the second inclined surface 312 together constitute a scraper 31. Along the axial direction of the plunger 10, the end of the first inclined surface 311 near the outer peripheral surface of the plunger 10 is connected to the end of the second inclined surface 312 near the outer peripheral surface of the plunger 10 to form a pointed structure, which is used to abut against the outer peripheral surface of the plunger 10. Specifically, when the plunger 10 reciprocates, this pointed structure can effectively scrape off the slurry adhering to the plunger 10 to avoid slurry residue between the plunger 10 and the end cap 20, which could lead to seal failure. At the same time, it reduces the wear of the homogenizer by the slurry and extends the service life of the homogenizer. In some embodiments, along the axial direction of the plunger 10, the other end of the first inclined surface 311, away from the outer peripheral surface of the plunger 10, extends into the guide channel 33, thereby guiding the slurry to flow precisely into the guide channel 33. In some embodiments, along the circumferential direction of the plunger 10, both the first inclined surface 311 and the second inclined surface 312 surround the plunger 10 to scrape off the slurry adhering to various positions on the outer peripheral surface of the plunger 10. In some embodiments, the number of second inclined surfaces 312 can be set according to actual needs to ensure that the scraping part 31 thoroughly scrapes off the material on the plunger 10, while ensuring that the scraping part 31 is simple to manufacture and conducive to mass production.

[0072] Please see Figure 1 and Figure 4Along the axial direction of the plunger 10, at least a portion of the guide ring 30 extends from one end of the guide ring 30 near the hopper 2 into the second groove 21 of the homogenizer 20. This effectively guides the slurry from the guide ring 30 into the second groove 21 of the homogenizer 20, reducing slurry leakage. In some embodiments, along the axial direction of the plunger 10, the guide channel 33 extends to the bottom of the second groove 21, thereby precisely guiding the slurry into the second groove 21 of the homogenizer 20. This facilitates the sealing of the homogenizer 20 during the movement of the plunger 10, preventing slurry leakage between the plunger 10 and the homogenizer 20. Simultaneously, by setting the guide channel 33 to cooperate with the second groove 21, the stability of the plunger 10 during movement is increased, which helps reduce the vibration of the plunger 10 caused by slurry adhering to it during movement, improving the overall operational stability of the homogenizer.

[0073] In some embodiments, along the axial direction of the plunger 10, one end of the guide channel 33 near the second groove 21 is connected to the bottom wall of the second groove 21 to directly deliver the slurry to the flood plug 20 to avoid slurry leakage. In some embodiments, along the radial direction of the plunger 10, the width of the guide channel 33 is smaller than the groove width of the second groove 21 so that the guide channel 33 can extend into the second groove 21 and match the second groove 21.

[0074] Please see Figure 1 , Figure 4 and Figure 5 , Figure 5 yes Figure 1 Another enlarged view of the part. The inner wall of the first groove 32 includes a third inclined surface 321. Along the axial direction of the plunger 10, the first distance L2 between the end of the third inclined surface 321 near the hopper 2 and the outer peripheral surface of the plunger 10 is greater than the second distance L3 between the other end of the third inclined surface 321 near the flood plug 20 and the outer peripheral surface of the plunger 10, so that the third inclined surface 321 is inclined from the hopper 2 towards the flood plug 20, for guiding the slurry into the second groove 21 of the flood plug 20. The first inclined surface 311 and the third inclined surface 321 are arranged opposite each other along the radial direction of the plunger 10, so that the first inclined surface 311 and the third inclined surface 321 cooperate to guide the slurry into the flood plug 20, thereby improving the guiding effect of the guide ring 30 on the slurry.

[0075] In some embodiments, the inclination of the third inclined surface 321 is equal to that of the first inclined surface 311, so that the flow rates of slurry from the third inclined surface 321 and the first inclined surface 311 into the flood plug 20 are approximately equal, thereby ensuring that the pressure at the flood plug 20 is equal everywhere. In some embodiments, the end of the third inclined surface 321 near the guide channel 33 is connected to the sidewall of the opening of the guide channel 33, so that the slurry can be precisely guided into the guide channel 33 through the third inclined surface 321. In some embodiments, the guide ring 30 further includes a fourth inclined surface 324. Along the radial direction of the plunger 10, the fourth inclined surface 324 is located on the side of the guide ring 30 away from the plunger 10. Along the axial direction of the plunger 10, the distance between the end of the fourth inclined surface 324 near the hopper 2 and the plunger 10 is greater than the distance between the other end of the fourth inclined surface 324 near the hopper 20 and the plunger 10, so that the fourth inclined surface 324 is an inclined structure, thereby reducing the volume of the guide ring 30, reducing the weight of the overall homogenizer, and helping to save costs.

[0076] Please see Figure 5 and Figure 6 , Figure 6 This is a cross-sectional view of a sealing device 1 for a homogenizer with a housing 40 according to an embodiment of this application. The sealing device 1 for the homogenizer also includes a housing 40 for assembling a flow guide ring 30 and a plug 20. The housing 40 is sleeved on the outer periphery of the plunger 10 and surrounds the outer periphery of the flow guide ring 30 and the plug 20, so as to surround the plug 20 and the flow guide ring 30 between the plunger 10 and the housing 40, thereby reducing the flow space of the slurry, which is beneficial to increasing the pressure of the slurry on the plug 20, and thus enhancing the sealing effect of the plug 20.

[0077] In some embodiments, along the axial direction of the plunger 10, the end of the third inclined surface 321 near the hopper 2 is connected to the end of the fourth inclined surface 324 near the hopper 2 to form a structure with a pointed tip for abutting against the inner circumferential surface of the housing 40 to prevent slurry from entering between the housing 40 and the guide ring 30 between the plug 20 and the housing 40, causing the plug 20 to fail to seal.

[0078] In some embodiments, the housing 40 has a first bottom wall 43, a second bottom wall 44, and a side wall 42. The first bottom wall 43 and the second bottom wall 44 are disposed opposite to each other and are connected at both ends to the first bottom wall 43 and the second bottom wall 44 along the axial direction of the plunger 10, forming a receiving cavity 41 for accommodating the plunger 20, the guide ring 30, and the slurry, so that the slurry can accumulate in the plunger 20 to increase the pressure at the plunger 20 and enhance the sealing effect of the plunger 20. In some embodiments, the first bottom wall 43 and the second bottom wall 44 are respectively provided with a first mounting hole 431 and a second mounting hole 441, which are disposed opposite to each other. Along the axial direction of the plunger 10, the first mounting hole 431 penetrates the first bottom wall 43, and the second mounting hole 441 penetrates the second bottom wall 44, so that at least a portion of the plunger 10 is located in the receiving cavity 41 of the housing 40. Specifically, when the plunger 10 reciprocates, it can push the slurry into the housing 40 and deliver it axially to the flood plug 20 to increase the pressure at the flood plug 20. In some embodiments, the diameters of the first mounting hole 431 and the second mounting hole 441 are larger than the diameter of the plunger 10, so that the plunger 10 can reciprocate within the first mounting hole 431 and the second mounting hole 441.

[0079] Please see Figure 7 and Figure 8 , Figure 7 This is a side view of a pan-sleeve 20 provided in one embodiment of this application. Figure 8 This is a cross-sectional view of the sealing device 1 of the homogenizer provided in this application embodiment. The plug 20 includes a first lip 22. Along the radial direction of the plunger 10, the first lip 22 is located on the side of the plug 20 closest to the plunger 10 and surrounds the outer peripheral surface of the plunger 10. The first lip 22 contacts the outer peripheral surface of the plunger 10, allowing the first lip 22 to scrape away residual slurry on the plunger 10 when the plunger 10 reciprocates relative to the plug 20. The side of the first lip 22 away from the plug 20 abuts against the outer peripheral surface of the plunger 10, thereby preventing slurry leakage between the plug 20 and the plunger 10 and causing wear, thus enhancing the sealing effect of the plug 20.

[0080] In some embodiments, the plunger 20 further includes a second lip 23. Along the axial direction of the plunger 10, the second lip 23 and the first lip 22 are spaced apart. Along the radial direction of the plunger 10, the second lip 23 is also located on the side of the plunger 20 closest to the plunger 10 and surrounds the outer periphery of the plunger 10. At least a portion of the second lip 23 contacts the outer periphery of the plunger 10, enabling the second lip 23 to also scrape away residual slurry on the plunger 10, thereby improving the slurry scraping ability of the plunger 20. The second lip 23 also abuts against the outer periphery of the plunger 10, allowing the second lip 23 to form a seal with the plunger 10, preventing slurry leakage between the plunger 20 and the plunger 10. In some embodiments, both the first lip 22 and the second lip 23 are located on the inner side of the plunger 20 closest to the plunger 10 and between the plunger 20 and the plunger 10 to block the inflow of slurry. In some embodiments, the first lip 22 and the second lip 23 are integrally formed with the plug 20 to avoid the formation of gaps between the first lip 22 and the second lip 23 and the plug 20, which would cause slurry to flow into the gaps and lead to seal failure.

[0081] In summary, by setting the first lip 22 and the second lip 23 to both abut against the plunger 10, the slurry is blocked layer by layer by the first lip 22 and the second lip 23. In addition, the first lip 22 and the second lip 23 can also scrape off the slurry adhering to the plunger 10, preventing the slurry from leaking between the plug 20 and the plunger 10 and causing wear, thereby improving the sealing effect of the plug 20.

[0082] Please see Figure 9 and Figure 10 , Figure 9 This is another side view of the Pan-Sleeve 20 provided in one embodiment of this application. Figure 10 This is another cross-sectional view of the sealing device 1 of the homogenizer provided in one embodiment of this application. The plug 20 also includes a third lip 24. Along the radial direction of the plunger 10, the third lip 24 is located on the side of the plug 20 near the housing 40 and surrounds the inner circumferential surface of the housing 40. The side of the third lip 24 away from the plug 20 abuts against the inner circumferential surface of the housing 40, thereby preventing slurry from leaking between the plug 20 and the housing 40 and causing wear on the plug 20, thus enhancing the sealing effect of the plug 20.

[0083] In some embodiments, the plunger 20 further includes a fourth lip 25, which is spaced apart from the third lip 24 along the axial direction of the plunger 10. The fourth lip 25 is also located on the side of the plunger 20 closest to the housing 40, and surrounds the inner circumferential surface of the housing 40, abutting against the outer circumferential surface of the housing 40, so that the fourth lip 25 can form a seal with the housing 40, thereby effectively improving the sealing effect of the plunger 20. In some embodiments, the third lip 24 and the fourth lip 25 are integrally formed with the plunger 20 to avoid gaps forming between the third lip 24 and the fourth lip 25 and the plunger 20, which could allow slurry to flow into the gaps and cause sealing failure.

[0084] In summary, by setting the third lip 24 and the fourth lip 25 to abut against the shell 40, the slurry is blocked layer by layer by the third lip 24 and the fourth lip 25, thereby effectively preventing the slurry from leaking between the plug 20 and the shell 40 and improving the sealing effect of the plug 20.

[0085] In some embodiments, the semaphore 20 is made of polyetheretherketone (PEEK) material to ensure the stability of the semaphore 20 and prevent the semaphore 20 from softening under high pressure, which would lead to seal failure.

[0086] Please see Figure 11 and Figure 12 , Figure 11 This is a side view of a first elastic baffle 50 or a second elastic baffle 60 provided in one embodiment of this application. Figure 12 This is a schematic diagram of a sealing device 1 for a homogenizer with a first elastic baffle 50 according to one embodiment of this application. The sealing device 1 of the homogenizer further includes at least one first elastic baffle 50. Along the axial direction of the plunger 10, the guide ring 30, the flood plug 20, and the first elastic baffle 50 are arranged sequentially. Along the axial direction of the plunger 10, both ends of the first elastic baffle 50 are used to abut against the flood plug 20 and the second bottom wall 44 of the housing 40, respectively, thereby providing axial buffering for the sealing device to ensure its stability. In some embodiments, the number of first elastic baffles 50 can be set according to actual needs to fully utilize the space within the housing 40 and ensure the stability of the sealing device.

[0087] Specifically, by setting the first elastic baffle 50 to elastically abut against the second bottom wall 44 of the plunger 20 and the housing 40 in the axial direction, the first elastic baffle 50 is used to provide a buffer area in the axial direction of the plunger 10 to avoid vibration between the plunger 10 and other components due to the reciprocating motion of the plunger 10, which would lead to damage to the sealing device.

[0088] Please see Figure 13 and Figure 14 , Figure 13This is a third cross-sectional view of the sealing device 1 of the homogenizer provided in one embodiment of this application. Figure 14 This is a side view of a sealing device 1 for a homogenizer according to one embodiment of this application. The sealing device 1 of the homogenizer includes at least one second elastic baffle 60. Along the axial direction of the plunger 10, the guide ring 30, the flood plug 20, the first elastic baffle 50, and the second elastic baffle 60 are arranged sequentially. Along the radial direction of the plunger 10, the two ends of the second elastic baffle 60 are respectively used to abut against the sidewalls 42 of the plunger 10 and the housing 40, thereby providing radial buffering for the sealing device to ensure its stability. In some embodiments, the number of second elastic baffles 60 can be set according to actual needs to fully utilize the space within the housing 40 and ensure the stability of the sealing device.

[0089] By setting the second elastic baffle 60 to elastically abut against the side wall 42 of the plunger 20 and the housing 40 in the radial direction, the second elastic baffle 60 can provide a buffer area in the radial direction of the plunger 10 to ensure the stability of the sealing device and prevent the plunger 10 from reciprocating and causing it to vibrate in the radial direction with other components.

[0090] Secondly, the present invention also discloses a homogenizer, including a sealing device 1 of the homogenizer as described in the first aspect.

[0091] By using the sealing device 1 of the homogenizer described above, the slurry adhering to the plunger 10 can be scraped off, reducing the wear of the sealing device caused by slurry flowing between the plunger 10 and the plug 20, and extending the service life of the plug 20. Furthermore, by setting the inclined structure of the guide ring 30, the slurry is efficiently guided into the plug 20, increasing the pressure of the plug 20 and thus enhancing its sealing effect.

[0092] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing device for a homogenizer, characterized in that, include: A plunger and a guide ring are sleeved on the outer periphery of the plunger of the homogenizer. The guide ring and the plunger are arranged in sequence along the axial direction of the plunger, and the guide ring is located on the side of the plunger closer to the hopper of the homogenizer. The flow guide ring has a first groove on its surface near the hopper in the axial direction. The first groove has a guide channel that passes through the flow guide ring in the axial direction on its bottom wall. The plunger has a second groove on its side near the flow guide ring. The guide channel communicates with the second groove. The first groove includes a scraping part near the lower sidewall of the plunger in the radial direction. The scraping part surrounds the plunger. The end of the scraping part near the hopper in the axial direction is in contact with the outer peripheral surface of the plunger. In the axial direction, a gap is left between the end of the scraping part away from the hopper and the outer peripheral surface of the plunger. The surface of the lower sidewall away from the plunger in the radial direction includes a first inclined surface. The surface of the lower sidewall facing the plunger in the radial direction includes a second inclined surface. Along the axial direction, the inclination direction of the second inclined surface is consistent with the inclination direction of the first inclined surface.

2. The sealing device of the homogenizer according to claim 1, characterized in that, In the axial direction, the first inclined surface extends from one end of the lower sidewall near the hopper to the bottom wall of the first groove.

3. The sealing device of the homogenizer according to claim 1, characterized in that, At least a portion of the guide ring extends from one end of the guide ring near the hopper into the second groove of the plug, and the guide channel extends to the bottom of the second groove along the axial direction.

4. The sealing device of the homogenizer according to claim 1, characterized in that, The inner wall of the first groove includes a third inclined surface. Along the axial direction, the distance between the end of the third inclined surface near the hopper and the outer peripheral surface of the plunger is greater than the distance between the other end of the third inclined surface near the plunger and the outer peripheral surface of the plunger. The first inclined surface and the third inclined surface are arranged opposite to each other in the radial direction.

5. The sealing device of the homogenizer according to claim 1, characterized in that, The sealing device of the homogenizer includes a housing for assembling the flow guide ring and the plunger, the housing being fitted around the outer periphery of the plunger and surrounding the outer periphery of the flow guide ring and the plunger.

6. The sealing device of the homogenizer according to claim 1, characterized in that, The plug further includes a first lip and a second lip. Along the axial direction, the first lip and the second lip are arranged at intervals. Along the radial direction, the first lip and the second lip are both located on the side of the plug closer to the plunger and surround the outer circumferential surface of the plunger.

7. The sealing device of the homogenizer according to claim 5, characterized in that, The plug also includes a third lip and a fourth lip, which are spaced apart along the axial direction. The third lip and the fourth lip are located on the side of the plug closer to the housing and surround the inner circumferential surface of the housing.

8. The sealing device of the homogenizer according to any one of claims 1-7, characterized in that, The sealing device of the homogenizer further includes at least one first elastic baffle and at least one second elastic baffle, which are sleeved on the outer circumferential surface of the plunger. Along the axial direction, the guide ring, the plunger, the first elastic baffle and the second elastic baffle are arranged in sequence.

9. A homogenizer, characterized in that, The sealing device of the homogenizer according to any one of claims 1-8.

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