Sealing device of homogenizer and homogenizer

Abstract

The embodiment of the invention provides a sealing device of a homogenizer and the homogenizer. The sealing device comprises a spring plug and a flow guide ring which are arranged on the periphery of a plunger of the homogenizer in a sleeving mode, the flow guide ring and the spring plug are sequentially arranged in the axial direction of the plunger, and the flow guide ring is located on the side, close to a stock bin of the homogenizer, of the spring plug and used for guiding slurry in the stock bin to flow into the spring plug. The flow guide ring comprises a scraping part surrounding the plunger, and the end, close to the stock bin, of the scraping part is attached to the peripheral face of the plunger. In the axial direction, a gap is reserved between one end, far away from the stock bin, of the scraping part and the peripheral surface of the plunger, so that the scraping part forms an inclined structure and is used for guiding slurry to flow into the spring plug from the stock bin, and abrasion of the sealing device caused by leakage of the slurry between the plunger and the spring plug is avoided; and 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 can thoroughly scrape slurry adhered to the plunger.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a sealing device of a homogenizer and the homogenizer. Background Art

[0002] A homogenizer is used to force slurry provided by a silo to flow through a special chamber under ultra-high pressure and high speed, causing chemical or physical changes to occur, thereby achieving homogenization of the slurry. The sealing device of the homogenizer is a key component to prevent slurry leakage and the intrusion of external impurities.

[0003] During operation of a homogenizer in the prior art, the relative movement between the flood plug and the plunger of the sealing device makes sealing between the flood plug and the plunger difficult, which often causes slurry to enter between the plunger and the flood plug, causing wear of the sealing device. Summary of the Invention

[0004] The embodiment of the present application proposes a sealing device for a homogenizer, which has a good sealing effect and can scrape off the slurry adhering to the plunger, thereby extending the service life of the sealing device and ensuring the stability and reliability of the sealing device.

[0005] First, embodiments of the present application provide a sealing device for a homogenizer, comprising a universal plug and a guide ring. The universal plug and guide ring are sleeved around the outer periphery of the homogenizer's plunger. The guide ring and universal plug are arranged in sequence along the axial direction of the plunger, with the guide ring located on the side of the universal plug closest to the homogenizer's hopper. The guide ring includes a scraper portion surrounding the plunger, with the scraper portion axially proximal to the hopper contacting the outer periphery of the plunger. A gap is formed between the end of the scraper portion distal to the hopper and the outer periphery of the plunger along the axial direction of the plunger.

[0006] This application utilizes a guide ring and a floodgate plug mounted on the outer periphery of the plunger. The plunger reciprocates to push slurry into the guide ring, which guides the slurry into the floodgate plug, preventing slurry from flowing from the hopper into the space between the guide ring and the plunger. The floodgate plug fits snugly against the outer periphery of the plunger, forming a seal that prevents slurry from leaking into the gap between the floodgate plug and the plunger, potentially leading to seal failure. A scraper portion surrounding the plunger is provided on the guide ring, and the plunger reciprocates relative to the scraper portion, allowing the scraper portion to remove slurry adhering to the outer periphery of the plunger, preventing slurry from leaking into the space between the plunger and the floodgate plug and causing wear. A gap is provided between the end of the scraper portion away from the silo and the outer periphery of the plunger along the axial direction of the plunger, so that the scraper portion forms an inclined structure, which is used to guide the slurry from the silo into the flood plug, thereby preventing the slurry from leaking between the plunger and the flood plug and causing wear of the sealing device. At the same time, the contact area between the scraper portion and the plunger is reduced, and the pressure of the scraper portion on the plunger is increased, which helps the scraper portion to completely scrape off the slurry adhering to the plunger.

[0007] As an optional embodiment, the guide ring is provided with a first groove on the surface axially close to the silo, the first groove is provided with a guide flow channel axially penetrating the guide ring on the axial bottom wall, a second groove is provided on the side of the flood plug close to the guide ring, the guide flow channel is connected to the second groove, and the first groove includes a scraping portion near the lower side wall of the plunger in the radial direction of the plunger.

[0008] By providing a first groove, a guide channel, and a second groove arranged in sequence along the axial direction of the plunger, and with both ends of the guide channel connected to the first groove and the second groove respectively, slurry can flow from the first groove into the second groove through the guide channel. More slurry can increase the pressure of the floodgate, thereby enhancing the sealing effect of the floodgate.

[0009] As an optional embodiment, the surface of the lower side wall away from the plunger in the radial direction includes a first inclined surface, and the surface of the lower side wall close to the plunger 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.

[0010] By providing an 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 than the plane that is completely in contact with the plunger.

[0011] As an optional embodiment, in the axial direction, the first inclined surface extends from an end of the lower side wall close to the silo to the bottom wall of the first groove.

[0012] By setting the first inclined surface to extend to the bottom wall of the first groove, the slurry is accurately guided to flow into the first groove, thereby avoiding leakage of part of the slurry between the first inclined surface and the first groove and causing wear of the sealing device, thereby effectively improving the sealing effect of the sealing device.

[0013] As an optional embodiment, at least a portion of the guide ring extends from one end of the guide ring close to the silo into the second groove of the floodgate, and the guide channel extends axially to the bottom of the second groove.

[0014] By arranging the guide flow channel of the guide ring to extend into the second groove of the universal seal, the slurry is accurately guided to flow into the second groove of the universal seal, thereby preventing the slurry from leaking between the guide flow channel and the second groove and causing wear of the sealing device, thereby effectively improving the sealing effect of the sealing device.

[0015] As an optional embodiment, the inner wall of the first groove includes a third inclined surface. Along the axial direction, the distance between one end of the third inclined surface close to the hopper and the outer peripheral surface of the plunger is greater than the distance between the other end of the third inclined surface close to the floodgate 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, it is prevented that part of the slurry does not flow into the guide channel and leaks between the flood plug and the plunger, thereby enhancing the sealing effect of the sealing device.

[0017] As an optional embodiment, the sealing device of the homogenizer includes a housing for assembling the guide ring and the universal plug. The housing is sleeved on the outer circumference of the plunger and surrounds the outer circumference of the guide ring and the universal plug.

[0018] By surrounding the guide ring and flood seal with a housing, the flood seal and guide ring are enclosed between the plunger and the housing to form a chamber. The plunger pushes the slurry into the chamber, reducing the space for slurry flow. The slurry is then transported to the flood seal, increasing the slurry pressure on the flood seal and enhancing the flood seal's sealing effect.

[0019] As an optional embodiment, the Variseal further includes a first lip and a second lip. The first lip and the second lip are spaced apart in the axial direction. In the radial direction, the first lip and the second lip are both located on a side of the Variseal close to the plunger and surround the outer circumference of the plunger.

[0020] By positioning both the first and second lips on the side of the pan seal closest to the plunger and surrounding the plunger's outer circumference, the pan seal's ability to scrape slurry from the plunger is enhanced by the first and second lips, which effectively prevent slurry from flowing between the pan seal and the plunger. This improves the pan seal's sealing effectiveness and extends the service life of the sealing device.

[0021] As an optional embodiment, the Variseal further includes a third lip and a fourth lip. The third lip and the fourth lip are arranged at intervals in the axial direction. The third lip and the fourth lip are located on a side of the Variseal close to the shell and surround the inner circumference of the shell.

[0022] By arranging the third and fourth lips on the side of the pan-plug close to the shell and surrounding the inner circumference of the shell, the slurry can pass through the third and fourth lips to prevent leakage between the shell and the pan-plug, thereby improving the sealing effect of the pan-plug.

[0023] As an optional embodiment, 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 universal 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 universal 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 providing a first elastic barrier in axial contact with the universal piston and a second elastic barrier, respectively, the sealing device provides an axial buffer zone, thereby preventing axial vibration between the piston and other components caused by the reciprocating motion of the plunger. Furthermore, by providing a second elastic barrier in radial contact with the plunger and housing, respectively, a radial buffer zone is provided for the sealing device, thereby preventing radial vibration between the piston and other components caused by the reciprocating motion of the plunger. The provision of the first and second elastic barriers ensures the stability of the sealing device during plunger operation.

[0025] In a second aspect, the present application provides a homogenizer, including the sealing device of the above homogenizer.

[0026] The homogenizer's sealing device scrapes away slurry adhering to the plunger, reducing wear on the seal caused by slurry flowing between the plunger and the floodgate, thereby extending the floodgate's service life. Furthermore, the inclined guide ring effectively guides slurry into the floodgate, increasing pressure on the floodgate and enhancing its sealing effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a sealing device of a homogenizer provided by an embodiment of the present application;

[0028] Figure 2 yes Figure 1 A partial enlarged view of

[0029] Figure 3 This is a side view of a guide ring provided by an embodiment of the present application;

[0030] Figure 4 This is a side view of a guide ring and a pan-seal provided in one embodiment of the present application;

[0031] Figure 5 Figure 1 Another partial enlarged view of;

[0032] Figure 6 This is a cross-sectional view of a sealing device of a homogenizer having a housing provided by an embodiment of the present application;

[0033] Figure 7 This is a side view of a Panseal provided by an embodiment of the present application;

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

[0035] Figure 9 This is another side view of a PanSeal provided by an embodiment of the present application;

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

[0037] Figure 11 This is a side view of a first elastic blocking piece or a second elastic blocking piece provided in an embodiment of the present application;

[0038] Figure 12 This is a schematic diagram of a sealing device of a homogenizer with a first elastic blocking piece provided by an embodiment of the present application;

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

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

[0041] Description of Reference Numerals

[0042] 1-Sealing device of homogenizer; 2-Silo;

[0043] 10- plunger;

[0044] 20-pan seal; 21-second groove; 22-first lip; 23-second lip; 24-third lip; 25-fourth lip;

[0045] 30 - guide ring; 31 - scraper portion; 311 - first inclined surface; 32 - first groove; 33 - guide channel; 312 - second inclined surface; 321 - third inclined surface; 322 - lower side wall; 323 - bottom wall of first groove; 324 - fourth inclined surface;

[0046] 40 - housing; 41 - accommodating chamber; 42 - side wall; 43 - first bottom wall; 44 - second bottom wall;

[0047] 431-first mounting hole; 441-second mounting hole;

[0048] 50-first elastic blocking piece;

[0049] 60- second elastic blocking piece;

[0050] L1-gap; L2-first distance; L3-second distance. DETAILED DESCRIPTION

[0051] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0052] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0053] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0054] It should be understood that the terms “first”, “second”, etc. used in this application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0055] In the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are 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, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0057] A homogenizer is used to force slurry provided by a silo to flow through a special chamber under ultra-high pressure and high speed, causing chemical or physical changes to occur, thereby achieving homogenization of the slurry. The sealing device of the homogenizer is a key component to prevent slurry leakage and the intrusion of external impurities.

[0058] During operation, prior art homogenizers suffer from poor sealing performance of the sealing device's floodgate, allowing slurry to enter the gap between the plunger and floodgate, causing wear and tear on the sealing device. Furthermore, the lack of a scraping module in existing homogenizer sealing devices makes it difficult to remove slurry from between the plunger and floodgate. Consequently, the slurry rubs against the reciprocating motion of the homogenizer's plunger, causing wear and seal failure.

[0059] In the first aspect, the sealing device 1 of the homogenizer provided in the embodiment of the present application is applicable to homogenizing equipment for homogenizing solid slurry, and involves scraping the plunger 10, draining the slurry, and sealing the flood plug 20 during use. Figure 1 , Figure 1 Figure 1 is a schematic diagram of a homogenizer sealing device 1 according to an embodiment of the present application. The homogenizer sealing device 1 includes a vane plug 20 and a guide ring 30. The guide ring 30 is used to guide slurry into the vane plug 20. The vane plug 20 provides a sealing function to prevent slurry leakage during operation, which could affect the homogenizer's normal operation. The vane plug 20 and the guide ring 30 are mounted around the outer periphery of the homogenizer's plunger 10. The plunger 10 is configured to reciprocate relative to the vane plug 20 and the guide ring 30 along its axial direction to push the slurry into the vane plug 20, ensuring continuous entry of the slurry into the vane plug 20. Simultaneously, more slurry, pushed by the plunger 10, enters the vane plug 20 from the guide ring 30, increasing the pressure on the vane plug 20 and thereby improving the sealing effect of the vane plug 20. Along the radial direction of the plunger 10, at least a portion of the side of the vane plug 20 proximate to the plunger 10 mates with the outer circumference of the plunger 10, forming a seal between the vane plug 20 and the plunger 10. This prevents slurry from leaking into the gap between the vane plug 20 and the plunger 10, which could cause wear and seal failure. Along the axial direction of the plunger 10, a guide ring 30 and the vane plug 20 are arranged sequentially, with the guide ring 30 located on the side of the vane plug 20 proximate to the homogenizer's silo 2. This allows the guide ring 30 to guide the majority of the slurry from the silo 2 into the vane plug 20, minimizing the chance of slurry flowing between the vane plug 20 and the plunger 10. It will be appreciated that the radial direction of the plunger 10 is perpendicular to its axial direction. The homogenizer's silo 2 is used to store slurry before homogenization and to continuously supply slurry to the homogenizer.

[0060] See also Figure 1 The guide ring 30 includes a scraper portion 31 that surrounds the plunger 10. The scraper portion 31 is located on the side of the guide ring 30 closest to the plunger 10. In the axial direction of the plunger 10, the end of the scraper portion 31 closest to the hopper 2 abuts against the outer circumference of the plunger 10, allowing the scraper portion 31 to contact the plunger 10 and scrape away slurry that adheres to the plunger 10 during its reciprocating motion, preventing slurry from entering between the plunger 10 and the floodgate 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 circumference of the plunger 10. This allows the scraper portion 31 to be inclined along the axial direction of the plunger 10, guiding the slurry into the floodgate 20 and enhancing 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 portion 31 is in contact with the outer circumference of the plunger 10, while the other end of the scraper portion 31 is spaced apart from the outer circumference of the plunger 10. This reduces the contact area between the scraper portion 31 and the plunger 10, increases the pressure exerted by the scraper portion 31 on the plunger 10, and enhances the scraping force of the scraper portion 31 on the slurry on the plunger 10, thereby effectively removing slurry remaining on the surface of the plunger 10. Furthermore, the scraper portion 31 is inclined from the floodgate 20 toward the side closer to the silo 2, guiding the slurry from the silo 2 into the floodgate 20 and preventing slurry from leaking between the plunger 10 and the guide ring 30, thereby preventing the seal from failing. It can be understood that the inclined structure of the scraper portion 31 saves material for the guide ring 30 compared to a scenario where the scraper portion 31 is completely in contact with the plunger 10, thereby reducing the manufacturing cost of the homogenizer as a whole.

[0062] In some embodiments, the surface of the scraper portion 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 silo 2 and the outer circumference of the plunger 10 is greater than the distance between the end of the first inclined surface 311 close to the silo 2 and the outer circumference of the plunger 10, thereby guiding the slurry in the silo 2. In this embodiment, the first inclined surface 311 is linearly inclined along the axial direction of the plunger 10.

[0063] In this application, a guide ring 30 and a flood plug 20 are sleeved around the outer periphery of the plunger 10. The plunger 10 reciprocates to push the slurry into the guide ring 30. The guide ring 30 is used to guide the slurry into the flood plug 20, preventing the slurry from flowing from the hopper 2 into the space between the guide ring 30 and the plunger 10. A scraper 31 is provided on the guide ring 30, surrounding the plunger 10. The plunger 10 can reciprocate relative to the scraper 31, allowing the scraper 31 to remove slurry adhering to the outer periphery of the plunger 10, thereby preventing slurry from leaking between the plunger 10 and the flood plug 20 and causing wear. The scraper portion 31 is arranged to contact the outer circumference of the plunger 10 at the end closest to the hopper 2 in the axial direction of the plunger 10. A gap L1 is left between the end of the scraper portion 31 farther from the hopper 2 and the outer circumference of the plunger 10 along the axial direction of the plunger 10, creating an inclined structure for the scraper portion 31. This structure guides the slurry from the hopper 2 into the floodgate 20, preventing slurry from leaking between the plunger 10 and the floodgate 20 and causing wear on the sealing device. This also reduces the contact area between the scraper portion 31 and the plunger, increasing the pressure exerted by the scraper portion 31 on the plunger 10 and helping the scraper portion 31 to thoroughly remove any slurry adhering to the plunger 10.

[0064] See also Figure 1 、 Figure 2 and Figure 3 , Figure 2 yes Figure 1 A partial enlarged view of Figure 3The figure shows a side view of a guide ring 30 provided in an embodiment of the present application. The guide ring 30 has a first groove 32 on the surface of the plunger 10 axially adjacent to the silo 2. The first groove 32 is used to guide the slurry in the silo 2 into the floodgate 20. A guide channel 33 is provided on the bottom wall of the first groove 32. The guide channel 33 extends axially through the bottom wall of the first groove 32, that is, through 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 floodgate 20. A second groove 21 is provided on the side of the floodgate 20 adjacent to the guide ring 30 along the axial direction of the plunger 10. The guide channel 33 communicates with the second groove 21, allowing the slurry in the guide channel 33 to flow into the second groove 21. A larger amount of slurry in the second groove 21 increases the pressure in the floodgate 20, thereby enhancing the sealing effect between the floodgate 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 both ends of the guide channel 33 communicating with the first groove 32 and the second groove 21, respectively, slurry can flow from the first groove 32 into the second groove 21 through the guide channel 33. A larger amount of slurry can increase the pressure of the pan seal 20, thereby enhancing the sealing effect of the pan seal 20.

[0066] In some embodiments, the opening of the guide channel 33 at one end near the second groove 21 along the axial direction of the plunger 10 is opposite the second groove 21. This allows the slurry in the guide channel 33 to flow directly into the second groove 21, reducing the slurry flow path and enhancing slurry flow efficiency. This also prevents slurry between the second groove 21 and the guide channel 33 from leaking between the plunger 10 and the floodgate 20, potentially compromising the sealing effect. In some embodiments, the guide channels 33 are spaced and evenly spaced along the circumference of the plunger 10, ensuring uniform slurry flow around the circumference of the plunger 10 and preventing localized excess or insufficient flow within the plunger 10, which could lead to unstable homogenizer operation. Furthermore, the slurry flowing into the floodgate 20 is distributed throughout the floodgate 20, preventing excessive localized pressure within the floodgate 20 from compromising the sealing effect.

[0067] See also Figure 1 、 Figure 2 and Figure 3In some embodiments, the first groove 32 includes a scraper portion 31 at a lower sidewall 322 near the plunger 10 in the radial direction of the plunger 10. This scraper portion 31 is used to scrape slurry adhered to the plunger 10, preventing it from leaking between the plunger 10 and the floodgate 20 and causing seal failure. The scraper portion 31 is inclined, allowing the opening of the first groove 32 to expand along the floodgate 20 toward the silo 2, thereby guiding the slurry into the guide channel 33 and reducing the chance of slurry leaking between the floodgate 20 and the plunger 10. In some embodiments, the side of the first groove 32 radially away from the plunger 10 serves as the upper sidewall. Along the axial direction of the plunger 10, the distance between the lower sidewall 322 of the first groove 32 and the upper sidewall of the first groove 32 near the silo 2 is greater than the distance between the lower sidewall 322 of the first groove 32 and the upper sidewall of the first groove 32 near the floodgate 20, thereby guiding the slurry in the silo 2 toward the floodgate 20.

[0068] See also Figure 1 、 Figure 2 and Figure 3 The lower sidewall 322 of the first groove 32, near the surface of the plunger 10, further 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, so as to scrape off the slurry adhered to the surface of the plunger 10. Specifically, when the plunger 10 reciprocates relative to the guide ring 30, the guide ring 30 and the second inclined surface 312 are both stationary relative to the plunger 10, and 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 adhered to the plunger 10 forms a dynamic scraping force, thereby effectively removing the residual slurry on the surface of the plunger 10.

[0069] In some embodiments, along the axial direction of the plunger 10, the end of the second inclined surface 312 proximate to the hopper 2 is aligned with the outer circumference of the plunger 10, while the other end of the second inclined surface 312 proximate to the flood plug 20 is spaced apart from the outer circumference of the plunger 10. This reduces the contact area between the scraper portion 31 and the plunger 10, increases the pressure exerted by the scraper portion 31 on the plunger 10, and enhances the scraping force of the scraper portion 31 on the slurry on the plunger 10, thereby effectively removing the slurry remaining on the surface of the plunger 10. It will be appreciated that the inclined structure of the second inclined surface 312 also saves material for the guide ring 30 compared to a scenario where the second inclined surface 312 completely aligns with the outer circumference of the plunger 10, thereby reducing the manufacturing cost of the entire homogenizer and reducing the overall weight of the homogenizer.

[0070] See also Figure 1 and Figure 4 , Figure 4This is a side view of the guide ring 30 and the pan-seal 20 provided in one embodiment of the present application. In the radial direction of the plunger 10, the surface of the lower sidewall 322 of the first groove 32, facing away from the plunger 10, forms a first inclined surface 311. In the axial direction of the plunger 10, the first inclined surface 311 extends from the lower sidewall 322 of the first groove 32, near the silo 2, to the bottom wall 323 of the first groove 32. This precisely guides slurry transferred from the silo 2 into the first groove 32 and then into the pan-seal 20 through the guide channel 33 of the first groove 32, preventing leakage of slurry between the plunger 10 and pan-seal 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 pan-seal 20 connects 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 collectively constitute the scraper portion 31. Along the axial direction of the plunger 10, the end of the first inclined surface 311 near the outer circumference of the plunger 10 connects to the end of the second inclined surface 312 near the outer circumference of the plunger 10 to form a pointed structure, which is configured to abut against the outer circumference of the plunger 10. Specifically, when the plunger 10 reciprocates, this pointed structure can effectively scrape off slurry adhered to the plunger 10, preventing slurry from remaining between the plunger 10 and the pan-seal 20 and causing seal failure. This also reduces wear on the homogenizer caused 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 circumference 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, the first inclined surface 311 and the second inclined surface 312 both surround the plunger 10 to scrape off slurry adhered to various locations on the outer circumference 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 portion 31 thoroughly scrapes the material on the plunger 10, while ensuring that the scraping portion 31 is simple to manufacture and facilitates mass production.

[0072] See also Figure 1 and Figure 4Along the axial direction of the plunger 10, at least a portion of the guide ring 30 extends from the end of the guide ring 30 near the hopper 2 into the second groove 21 of the floodgate 20, effectively guiding the slurry from the guide ring 30 into the second groove 21 of the floodgate 20, thereby reducing slurry leakage. In some embodiments, a guide channel 33 extends along the axial direction of the plunger 10 to the bottom of the second groove 21, thereby precisely guiding the slurry into the second groove 21 of the floodgate 20. This facilitates sealing the floodgate 20 during movement of the plunger 10 and prevents slurry leakage between the plunger 10 and the floodgate 20. Furthermore, the provision of the guide channel 33 in conjunction with the second groove 21 enhances the stability of the plunger 10 during movement, reducing vibration of the plunger 10 caused by slurry adhering to the plunger 10 during movement and improving the overall operational stability of the homogenizer.

[0073] In some embodiments, along the axial direction of the plunger 10, the end of the guide channel 33 proximal to the second groove 21 is connected to the bottom wall of the second groove 21, thereby directly conveying the slurry to the flood plug 20 to prevent slurry leakage. In some embodiments, along the radial direction of the plunger 10, the width of the guide channel 33 is smaller than the width of the second groove 21, allowing the guide channel 33 to extend into the second groove 21 and mate with the second groove 21.

[0074] See also Figure 1 、 Figure 4 and Figure 5 , Figure 5 yes Figure 1 Another enlarged partial view. The inner wall of the first groove 32 includes a third inclined surface 321. Along the axial direction of the plunger 10, a first distance L2 between the end of the third inclined surface 321 near the hopper 2 and the outer circumference of the plunger 10 is greater than a second distance L3 between the other end of the third inclined surface 321 near the pan-seal 20 and the outer circumference of the plunger 10. This causes the third inclined surface 321 to slope from the hopper 2 toward the pan-seal 20, guiding the slurry into the second groove 21 of the pan-seal 20. The first inclined surface 311 and the third inclined surface 321 are disposed 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 pan-seal 20, thereby improving the slurry diversion effect of the guide ring 30.

[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 rate of slurry flowing from the third inclined surface 321 and the slurry flowing from the first inclined surface 311 into the variable-valve 20 is approximately equal, thereby ensuring that the pressure on the variable-valve 20 is uniform everywhere. In some embodiments, the end of the third inclined surface 321 near the guide channel 33 is connected to the side wall 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 one end of the fourth inclined surface 324 close to the silo 2 and the plunger 10 is greater than the distance between the other end of the fourth inclined surface 324 close to the flood plug 20 and the plunger 10, so that the fourth inclined surface 324 has an inclined structure, thereby reducing the volume of the guide ring 30, reducing the weight of the overall homogenizer equipment, and facilitating cost savings.

[0076] See also Figure 5 and Figure 6 , Figure 6 FIG4 is a cross-sectional view of a homogenizer sealing device 1 having a housing 40, provided in accordance with an embodiment of the present application. The homogenizer sealing device 1 further includes the housing 40 for mounting the guide ring 30 and the vane plug 20. The housing 40 is sleeved around the periphery of the plunger 10 and surrounds the guide ring 30 and the vane plug 20, thereby enclosing the vane plug 20 and the guide ring 30 between the plunger 10 and the housing 40. This reduces the space for slurry flow, increases the pressure of the slurry on the vane plug 20, and enhances the sealing effect of the vane plug 20.

[0077] In some embodiments, along the axial direction of the plunger 10, an end of the third inclined surface 321 near the silo 2 is connected to an end of the fourth inclined surface 324 near the silo 2 to form a structure with a pointed end, which is used to abut against the inner circumferential surface of the housing 40 to prevent slurry from entering between the housing 40 and the guide ring 30 and between the variable-seal 20 and the housing 40, thereby causing sealing failure of the variable-seal 20.

[0078] In some embodiments, the housing 40 includes a first bottom wall 43, a second bottom wall 44, and a side wall 42. The first and second bottom walls 43 and 44 are disposed opposite each other. Along the axial direction of the plunger 10, the ends of the side wall 42 are connected to the first and second bottom walls 43 and 44, respectively, to form a receiving chamber 41 for accommodating the vane 20, the guide ring 30, and the slurry. This allows the slurry to accumulate within the vane 20, thereby increasing the pressure within the vane 20 and enhancing the sealing effect of the vane 20. In some embodiments, the first and second bottom walls 43 and 44 are respectively defined with a first mounting hole 431 and a second mounting hole 441. The first mounting hole 431 and the second mounting hole 441 are disposed opposite each other. Along the axial direction of the plunger 10, the first mounting hole 431 extends through the first bottom wall 43, and the second mounting hole 441 extends through the second bottom wall 44. The plunger 10 can pass through the first and second mounting holes 431 and 441, respectively, so that at least a portion of the plunger 10 is positioned within the receiving chamber 41 of the housing 40. Specifically, when the plunger 10 reciprocates, it can push the slurry into the housing 40 and transport it axially to the floodgate 20, thereby increasing the pressure at the floodgate 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 can reciprocate within the first mounting hole 431 and the second mounting hole 441.

[0079] See also Figure 7 and Figure 8 , Figure 7 This is a side view of a Variseal 20 provided by an embodiment of the present application. Figure 8 Figure 1 is a cross-sectional view of the sealing device 1 of a homogenizer provided in an embodiment of the present application. The vane plug 20 includes a first lip 22. The first lip 22 is located radially on the side of the vane plug 20 proximal to the plunger 10 and surrounds the outer circumference of the plunger 10. The first lip 22 contacts the outer circumference of the plunger 10, allowing the first lip 22 to scrape away residual slurry from the plunger 10 as the plunger 10 reciprocates relative to the vane plug 20. The first lip 22 abuts against the outer circumference of the plunger 10 on the side away from the vane plug 20, thereby preventing slurry from leaking between the vane plug 20 and the plunger 10 and causing wear, thereby enhancing the sealing effect of the vane plug 20.

[0080] In some embodiments, the vane plug 20 further includes a second lip 23. The second lip 23 is spaced apart from the first lip 22 along the axial direction of the plunger 10. In the radial direction of the plunger 10, the second lip 23 is also located on the side of the vane plug 20 proximal to the plunger 10 and surrounds the outer circumference of the plunger 10. At least a portion of the second lip 23 contacts the outer circumference of the plunger 10, enabling the second lip 23 to scrape away residual slurry from the plunger 10, thereby improving the vane plug 20's slurry scraping capability. The second lip 23 also abuts against the outer circumference of the plunger 10, forming a seal with the plunger 10 and preventing slurry from leaking between the vane plug 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 vane plug 20 proximal to the plunger 10, between the vane plug 20 and the plunger 10, to prevent the inflow of slurry. In some embodiments, the first lip 22 and the second lip 23 are integrally formed with the Variseal 20 to prevent a gap from forming between the first lip 22 and the second lip 23 and the Variseal 20 , which could cause slurry to flow into the gap and lead to sealing failure.

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

[0082] See also Figure 9 and Figure 10 , Figure 9 This is another side view of the Variseal 20 provided by one embodiment of the present application. Figure 10 This is another cross-sectional view of the homogenizer sealing device 1 provided by one embodiment of the present application. The Varistor 20 also includes a third lip 24. This lip is located radially along the plunger 10, on the side of the Varistor 20 closest to the housing 40, and surrounds the inner circumference of the housing 40. The side of the third lip 24 facing away from the Varistor 20 abuts against the inner circumference of the housing 40. This prevents slurry from leaking between the Varistor 20 and the housing 40, which could cause wear on the Varistor 20 and enhance the sealing effectiveness of the Varistor 20.

[0083] In some embodiments, the Variseal 20 further includes a fourth lip 25, 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 Variseal 20 proximal to the housing 40, surrounding the inner circumference of the housing 40 and abutting against the outer circumference of the housing 40. This allows the fourth lip 25 to form a seal with the housing 40, thereby effectively enhancing the sealing performance of the Variseal 20. In some embodiments, the third and fourth lips 24, 25 are integrally molded with the Variseal 20 to prevent gaps from forming between the third and fourth lips 24, 25 and the Variseal 20, which could cause slurry to flow into the gaps and result in seal failure.

[0084] In summary, by providing the third lip 24 and the fourth lip 25 to abut against the housing 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 pan seal 20 and the housing 40 , thereby improving the sealing effect of the pan seal 20 .

[0085] In some embodiments, the pan plug 20 is made of polyetheretherketone (PEEK) to ensure the stability of the pan plug 20 and prevent the pan plug 20 from softening under high pressure and causing sealing failure.

[0086] See also Figure 11 and Figure 12 , Figure 11 This is a side view of the first elastic blocking piece 50 or the second elastic blocking piece 60 provided in one embodiment of the present application. Figure 12 Figure 1 is a schematic diagram of a homogenizer sealing device 1 with a first elastic baffle 50, provided in one embodiment of the present application. The homogenizer sealing device 1 also includes at least one first elastic baffle 50. Along the axial direction of the plunger 10, the guide ring 30, the universal plug 20, and the first elastic baffle 50 are arranged in sequence. Along the axial direction of the plunger 10, the ends of the first elastic baffle 50 are configured to abut against the universal plug 20 and the second bottom wall 44 of the housing 40, respectively, thereby providing axial cushioning for the sealing device and ensuring its stability. In some embodiments, the number of first elastic baffles 50 can be adjusted based on actual needs to fully utilize the space within the housing 40 and ensure the stability of the sealing device.

[0087] Specifically, by providing a first elastic barrier 50 that elastically abuts against the pan-seal 20 and the second bottom wall 44 of the housing 40 in the axial direction, the first elastic barrier 50 is used to provide a buffer area in the axial direction of the plunger 10 to prevent the reciprocating movement of the plunger 10 from causing vibration between the plunger 10 and other components, which could lead to damage to the sealing device.

[0088] See also Figure 13 and Figure 14 , Figure 13This is a third cross-sectional view of the sealing device 1 of the homogenizer provided by an embodiment of the present application. Figure 14 The figure is a side view of a homogenizer sealing device 1 provided by an embodiment of the present application. The homogenizer sealing device 1 includes at least one second elastic baffle 60. Along the axial direction of the plunger 10, the guide ring 30, the floodgate 20, the first elastic baffle 50, and the second elastic baffle 60 are arranged in sequence. In the radial direction of the plunger 10, the two ends of the second elastic baffle 60 are used to abut the plunger 10 and the side wall 42 of the housing 40, respectively, thereby providing radial buffering for the sealing device to ensure the stability of the sealing device. 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 providing the second elastic barrier 60 to elastically abut against the pan-seal 20 and the sidewall 42 of the housing 40 in the radial direction, the second elastic barrier 60 can provide a buffer area in the radial direction of the plunger 10, thereby ensuring the stability of the sealing device and preventing radial vibration between the plunger 10 and other components caused by the reciprocating motion of the plunger 10.

[0090] In a second aspect, the present invention further discloses a homogenizer, comprising the sealing device 1 of the homogenizer according to the first aspect.

[0091] The homogenizer sealing device 1 described above can scrape away slurry adhering to the plunger 10, reducing wear on the sealing device caused by slurry flowing between the plunger 10 and the floodgate 20, thereby extending the service life of the floodgate 20. Furthermore, the inclined structure of the guide ring 30 efficiently guides slurry into the floodgate 20, increasing the pressure inside the floodgate 20 and thereby enhancing the sealing effect of the floodgate 20.

[0092] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sealing device for a homogenizer, characterized in that: include: A vane plug and a guide ring, wherein the vane plug and the guide ring are sleeved on the outer circumference of the plunger of the homogenizer, and the guide ring and the vane plug are arranged in sequence along the axial direction of the plunger. The guide ring is located on a side of the vane plug close to the hopper of the homogenizer; In which, the guide ring includes a scraper portion surrounding the plunger, and the scraper portion is in contact with the outer peripheral surface of the plunger at one end close to the silo in the axial direction. In the axial direction, a gap is left between the end of the scraper portion away from the silo and the outer peripheral surface of the plunger.

2. The sealing device of the homogenizer according to claim 1, characterized in that: The guide ring is provided with a first groove on a surface close to the silo in the axial direction, and the first groove is provided with a guide flow channel penetrating the guide ring in the axial direction on the bottom wall in the axial direction. The flood seal is provided with a second groove on a side close to the guide ring, and the guide flow channel is connected to the second groove. The first groove includes the scraper portion on the lower side wall close to the plunger in the radial direction of the plunger.

3. The sealing device of the homogenizer according to claim 2, characterized in that: The surface of the lower side wall away from the plunger in the radial direction includes a first inclined surface, and the surface of the lower side wall facing the plunger in the radial direction includes a second inclined surface. Along the axial direction, the inclined direction of the second inclined surface is consistent with the inclined direction of the first inclined surface.

4. The sealing device of the homogenizer according to claim 2 or 3, characterized in that: In the axial direction, the first inclined surface extends from an end of the lower side wall close to the silo to the bottom wall of the first groove.

5. The sealing device of the homogenizer according to any one of claims 2 to 4, characterized in that: At least a portion of the guide ring extends from one end of the guide ring close to the silo into the second groove of the pan-seal, and along the axial direction, the guide channel extends to the bottom of the second groove.

6. The sealing device of a homogenizer according to any one of claims 2 to 5, characterized in that: The inner wall of the first groove includes a third inclined surface. Along the axial direction, the distance between one end of the third inclined surface close to the hopper and the outer peripheral surface of the plunger is greater than the distance between the other end of the third inclined surface close to the floodgate 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.

7. The sealing device of a homogenizer according to any one of claims 1 to 6, characterized in that: The sealing device of the homogenizer includes a shell for assembling the guide ring and the universal seal. The shell is sleeved on the outer circumference of the plunger and surrounds the outer circumferences of the guide ring and the universal seal.

8. The sealing device of a homogenizer according to any one of claims 1 to 7, characterized in that: The pan-seal further includes a first lip and a second lip. The first lip and the second lip are spaced apart in the axial direction. In the radial direction, the first lip and the second lip are both located on a side of the pan-seal close to the plunger and surround the outer circumference of the plunger.

9. The sealing device of the homogenizer according to claim 7 or 8, characterized in that: The Variseal further includes a third lip and a fourth lip. The third lip and the fourth lip are arranged at intervals along the axial direction. The third lip and the fourth lip are located on a side of the Variseal close to the shell and surround the inner circumference of the shell.

10. The sealing device of a homogenizer according to any one of claims 1 to 9, 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 floodgate, the first elastic baffle, and the second elastic baffle are arranged in sequence.

11. A homogenizer, characterized in that: A sealing device comprising the homogenizer according to any one of claims 1 to 10.

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