A mechanical seal device suitable for use with a solid particulate medium

Abstract

This invention discloses a mechanical seal device suitable for media containing solid particles, comprising: a first functional mechanism, which includes a mechanical seal cover and a bushing body. A stationary ring body is slidably inserted inside the mechanical seal cover, and the bushing body is slidably inserted inside the mechanical seal cover. In use, the bushing body allows the device to be fitted and connected to the shaft end of the device to be used. Simultaneously, the mechanical seal cover fixes the device in a designated position. Under the compression of the bushing body, the rotating ring seat body effectively conforms to and approaches the mechanical seal cover, thereby compressing the limiting spring. The limiting spring, through the pressure ring and the rotating ring seal ring, effectively compresses the rotating ring body, allowing one end of the rotating ring body to effectively conform to one end of the stationary ring body. Simultaneously, under the positional constraints of the limiting block, limiting groove, and retaining groove, the rotating ring body can rotate with the rotating ring seat body.

Description

Technical Field

[0001] This invention belongs to the technical field of mechanical seal equipment, specifically a mechanical seal device suitable for media containing solid particles. Background Technology

[0002] A mechanical seal is a device that prevents fluid leakage by consisting of at least one pair of end faces perpendicular to the axis of rotation, which are kept in contact and slide relative to each other under the action of fluid pressure, the elastic force of the compensation mechanism, and the cooperation of auxiliary seals.

[0003] However, in existing technologies, during use, some of the processed media contain solid particles, which can easily be drawn into the mechanical seal surface. This leads to severe friction and wear on the mechanical seal end face, frequent media leakage, and thus greatly reduces the performance and service life of the mechanical seal. Furthermore, when the mechanical seal stops operating, particles near the mechanical seal surface are easily affected by the temperature of the sealing surface, causing residual solid particles to adhere around the mechanical seal surface. This makes it even easier for solid particles to enter the mechanical seal surface, affecting the normal operation of the equipment and resulting in poor actual performance. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanical seal device suitable for media containing solid particles, which can effectively prevent solid particles in the medium from entering the mechanical seal surface and at the same time effectively prevent excessive adhesion and accumulation of solid particles around the mechanical seal surface.

[0005] The technical solution adopted in this invention is as follows: A mechanical seal device suitable for media containing solid particles, comprising: a first functional mechanism, the first functional mechanism including a mechanical seal cover and a bushing body, a stationary ring body slidably inserted inside the mechanical seal cover, the bushing body slidably inserted inside the mechanical seal cover, a rotating ring seat body fixedly connected to the outer surface of the bushing body by bolts, a limiting spring slidably embedded inside the rotating ring seat body, a pressure ring slidably inserted inside the rotating ring seat body, and a rotating ring body slidably inserted inside the rotating ring seat body; and

[0006] The second functional mechanism is disposed on the stationary ring body. The second functional mechanism includes a collar, a pressure ring, a pressure boosting component, and a cleaning component. The collar is slidably sleeved on the outer surface of the stationary ring body. The pressure boosting ring is sleeved on the outer surface of the stationary ring body. Multiple pressure boosting grooves are equidistantly opened on one side of the outer surface of the pressure boosting ring. The pressure boosting component is disposed on the pressure boosting ring, and the cleaning component is disposed on the collar.

[0007] The outer surface of one side of the stationary ring body is provided with multiple positioning grooves at equal intervals, and the inner wall of one side of the mechanical seal cover is fixedly connected with multiple positioning blocks at equal intervals along the circumferential direction. One end of each positioning block extends into the corresponding positioning groove.

[0008] The outer surface of the stationary ring body is provided with a sealing groove, the sealing groove is circular, and an O-ring is fitted inside the sealing groove on the outer surface of the stationary ring body.

[0009] The outer surface of the pressure ring is provided with multiple limiting grooves at equal intervals. One end of the pressure ring extends into the interior of the limiting spring. Multiple limiting blocks are fixedly connected at equal intervals to the inner surface of the moving ring seat body. Each limiting block slides through the interior of the corresponding limiting groove.

[0010] The moving ring body has a moving ring sealing ring embedded inside, and multiple slots are equally spaced on the outer surface of the moving ring body. Each limiting block slides through the corresponding slot.

[0011] One end of the pressure ring slides through the interior of the moving ring seal, and the other end of the pressure ring extends into the interior of the moving ring body.

[0012] The pressurizing component includes a pressurizing shaft, and multiple pressurizing shafts are provided. One end of each pressurizing shaft is rotatably connected to the inner wall of the corresponding pressurizing groove. The outer surface of the pressurizing shaft is in contact with the inner wall of the pressurizing groove. One end of each pressurizing shaft is fixedly connected to an injection ring, and a connection hole is provided on the inner wall of each pressurizing groove.

[0013] Each of the injection rings has a connecting elastic ring fitted on its outer surface, and an elastic inner ring is embedded inside the collar. The inner wall of the elastic inner ring and the outer surfaces of the multiple connecting elastic rings are all in contact.

[0014] The cleaning component includes a linkage rod, and multiple linkage rods are provided. Each linkage rod passes through the outer surface of one side of the collar. A linkage tube is slidably sleeved on the outer surface of each linkage rod, and a support spring is slidably sleeved on the outer surface of each linkage tube. A cleaning ring is fixedly connected to one end of each linkage tube.

[0015] The cleaning ring has multiple flow channels equidistantly arranged on one side of its outer surface. Each flow channel is connected to the corresponding connecting hole. A friction ring is embedded inside the cleaning ring. The outer surface of the friction ring is attached to the outer surface of the moving ring body. The pressure ring has multiple injection holes equidistantly arranged on its outer surface. Each injection hole is connected to the corresponding pressure channel.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] In this invention, during use, the bushing body allows the device to be fitted and connected to the shaft end of the device to be used. Simultaneously, the mechanical seal cap secures the device in the designated position. Under the pressure of the bushing body, the rotating ring seat body effectively fits against the mechanical seal cap, compressing the limiting spring. The limiting spring, through the pressure ring and the rotating ring seal ring, effectively presses against the rotating ring body, causing one end of the rotating ring body to effectively fit against one end of the stationary ring body. Simultaneously, the positional constraints of the limiting block, limiting groove, and locking groove allow the rotating ring body to rotate with the rotating ring seat body, enabling the device to perform its intended functions. Furthermore, supported by the support spring, the connecting tube supports the cleaning ring close to one end of the rotating ring body, while the friction ring tightly fits against one end of the rotating ring body. This allows the rotating rotating ring body to effectively drive the cleaning ring to rotate. The rotating cleaning ring, through the guide groove, effectively accelerates the flow of the medium around the contact surface between the rotating and stationary ring bodies, thus preventing solid particles in the medium from easily moving within the rotating ring. Solid particles accumulate around the contact surfaces of the main body and the stationary ring. Simultaneously, the rotating cleaning ring, through the connecting pipe and rod, effectively drives the collar to rotate. This rotating collar, in turn, through the elastic inner ring and connecting elastic ring, effectively drives the corresponding injection ring to rotate. The rotating injection ring, in turn, drives the corresponding booster shaft to rotate. Due to the space constraints of the booster tank, the rotating booster shaft draws surrounding media into the booster tank through the injection hole. Under the pressure of the rotating booster shaft, the media is effectively squeezed and injected into the corresponding guide channel through the connecting hole. The discharged high-speed flowing media cleans the solid particles around the contact surfaces of the moving and stationary rings, effectively preventing these particles from affecting equipment operation and extending the actual service life of the equipment. It also accelerates the flow of surrounding high-temperature media, ensuring that after the equipment is stopped, residual solids around the moving and stationary rings are less likely to adhere and accumulate due to excessive heat, facilitating reuse and enabling the equipment to perform its intended functions efficiently. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the present invention;

[0019] Figure 2 This is a rear perspective view of the present invention;

[0020] Figure 3 This is a frontal sectional perspective view of the present invention;

[0021] Figure 4 This is a frontal sectional view of the first functional mechanism of the present invention.

[0022] Figure 5 For the present invention Figure 4 Enlarged view of section A in the middle;

[0023] Figure 6 This is a rear-view sectional view of the first functional mechanism of the present invention.

[0024] Figure 7 For the present invention Figure 6 Enlarged view of section B;

[0025] Figure 8 This is a frontal sectional view of the second functional mechanism of the present invention.

[0026] Figure 9 For the present invention Figure 8 Enlarged view of section C;

[0027] Figure 10 This is a frontal sectional perspective view of the second functional mechanism of the present invention;

[0028] Figure 11 This is a rear-view perspective view of the second functional mechanism of the present invention.

[0029] The diagram shows the following markings: 1. First functional mechanism; 101. Mechanical seal cover; 102. Stationary ring body; 103. O-ring; 104. Bushing body; 105. Dynamic ring seat body; 106. Limiting spring; 107. Pressure ring; 108. Dynamic ring seal; 109. Dynamic ring body; 2. Second functional mechanism; 201. Collar ring; 202. Elastic inner ring; 203. Pressure boosting ring; 204. Injection ring; 205. Linkage elastic ring; 206. Pressure boosting shaft; 207. Linkage rod; 208. Linkage tube; 209. Support spring; 210. Cleaning ring; 211. Friction ring. Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Example

[0031] Reference Figures 1-11A mechanical seal device suitable for media containing solid particles includes: a first functional mechanism 1 and a second functional mechanism 2. The first functional mechanism 1 includes a mechanical seal cover 101 and a bushing body 104. The mechanical seal cover 101, in conjunction with the bushing body 104, facilitates the installation of other functional components of the device. A stationary ring body 102 is slidably inserted inside the mechanical seal cover 101. The stationary ring body 102, in conjunction with the rotating ring body 109, enables the device to perform its intended functions normally. The bushing body 104 is slidably inserted inside the mechanical seal cover 101. A rotating ring seat body 105 is bolted to the outer surface of the bushing body 104. The rotating ring seat body 105 facilitates the installation of other functional components of the device. A limiting spring 106 is slidably embedded inside the rotating ring seat body 105. The limiting spring 106 effectively supports and limits the rotating ring body 109. A pressure ring 107 is slidably inserted inside the moving ring seat body 105. The pressure ring 107 can effectively support the position of the moving ring body 109. The moving ring body 109 is slidably inserted inside the moving ring seat body 105. The second functional mechanism 2 is set on the stationary ring body 102. The second functional mechanism 2 includes a collar 201, a pressure ring 203, a pressure boosting component, and a cleaning component. The collar 201 and the pressure boosting ring 203 facilitate the installation of other functional components of the equipment. The collar 201 is slidably sleeved on the outer surface of the stationary ring body 102. The pressure boosting ring 203 is sleeved on the outer surface of the stationary ring body 102. Multiple pressure boosting grooves are equidistantly opened on one side of the outer surface of the pressure boosting ring 203. The pressure boosting grooves facilitate the installation of the pressure boosting shaft 206. The pressure boosting component is set on the pressure boosting ring 203, and the cleaning component is set on the collar 201.

[0032] Reference Figures 3-11The outer surface of the stationary ring body 102 is provided with multiple equidistant positioning grooves. These grooves, in conjunction with positioning blocks, effectively restrict the position of the stationary ring body 102. Multiple positioning blocks are equidistantly connected to the inner wall of the mechanical seal cover 101 along the circumferential direction. One end of each positioning block extends into the corresponding positioning groove. A sealing groove is provided on the outer surface of the stationary ring body 102. This groove facilitates the installation of the O-ring 103. The sealing groove is annular, and the O-ring 103 is fitted inside the sealing groove on the outer surface of the stationary ring body 102. The O-ring 103 effectively seals the interior of the mechanical seal cover 101. Multiple limiting grooves are provided on the outer surface of the pressure ring 107. These grooves, in conjunction with limiting blocks, effectively restrict the position of the pressure ring 107. The pressure ring 107 extends into the interior of the limiting spring 106. Multiple limiting blocks are fixedly connected at equal intervals to the inner wall of the rotating ring seat body 105. The limiting blocks effectively restrict the positional movement of the pressure ring 107 and the rotating ring body 109. Each limiting block slides through a corresponding limiting groove. A rotating ring sealing ring 108 is embedded inside the rotating ring body 109, effectively sealing the interior of the rotating ring seat body 105. Multiple slots are equidistantly opened on the outer surface of the rotating ring body 109. These slots, in conjunction with the limiting blocks, effectively restrict the positional movement of the rotating ring body 109. Each limiting block slides through a corresponding slot. One end of the pressure ring 107 slides through the interior of the rotating ring sealing ring 108. One end of the pressure ring 107 extends into the interior of the limiting spring 106. Inside the ring body 109, the pressurizing component includes a pressurizing shaft 206. The pressurizing shaft 206 effectively moves and transports the medium. Multiple pressurizing shafts 206 are provided, each with one end rotatably connected to the inner wall of a corresponding pressurizing groove. The outer surface of the pressurizing shaft 206 is in contact with the inner wall of the pressurizing groove. Each pressurizing shaft 206 has a fixed injection ring 204 at one end, which effectively guides the medium into the corresponding pressurizing groove. Each pressurizing groove has a connecting hole on one side of its inner wall, allowing the rotating pressurizing shaft 206 to effectively inject the medium into the corresponding guide groove. Each injection ring 204 has a connecting elastic ring 205 fitted on its outer surface, which works in conjunction with an elastic inner ring 20. 2. The collar 201 effectively drives the injection ring 204 to rotate. An elastic inner ring 202 is embedded inside the collar 201. The inner wall of the elastic inner ring 202 and the outer surfaces of multiple connecting elastic rings 205 are in contact. The cleaning component includes a connecting rod 207. The connecting rod 207 facilitates the installation of the connecting tube 208. Multiple connecting rods 207 are provided, each passing through one side of the outer surface of the collar 201. A connecting tube 208 is slidably fitted onto the outer surface of each connecting rod 207. The connecting tube 208 facilitates the installation of other functional components of the equipment. A support spring 209 is slidably fitted onto the outer surface of each connecting tube 208. The support spring 209 effectively supports and restricts the position of the cleaning ring 210.Multiple connecting pipes 208 are fixedly connected at one end to a cleaning ring 210. The cleaning ring 210 effectively agitates and cleans particles in the surrounding medium, while preventing solid particles from entering the contact surface between the moving ring body 109 and the stationary ring body 102. Multiple guide grooves are equidistantly arranged on one side of the outer surface of the cleaning ring 210. These guide grooves effectively agitate the medium. Each guide groove is connected to its corresponding connecting hole. A friction ring 211 is embedded inside the cleaning ring 210. The friction ring 211 allows the moving ring body 109 to effectively drive the cleaning ring 210 to rotate. One side of the outer surface of the friction ring 211 is in contact with one side of the outer surface of the moving ring body 109. Multiple injection holes are equidistantly arranged on the outer surface of the pressure ring 203. These injection holes allow the medium inside the pressure tank to be effectively injected into the guide grooves. Each injection hole is connected to its corresponding pressure tank.

[0033] In use, the bushing body 104 allows the device to be fitted and connected to the shaft end of the device to be used. Simultaneously, the mechanical seal cover 101 secures the device in the designated position. Under the compression of the bushing body 104, the rotating ring seat body 105 effectively conforms to and approaches the mechanical seal cover 101. This compresses the limiting spring 106, which in turn, through the pressure ring 107 and the rotating ring seal ring 108, effectively compresses the rotating ring body 109. Consequently, one end of the rotating ring body 109 effectively conforms to one end of the stationary ring body 102. Simultaneously, the limiting block, limiting groove, and retaining groove... Under positional constraints, the rotating ring body 109 can rotate with the rotating ring seat body 105, enabling the equipment to perform its intended functions normally. Simultaneously, supported by the support spring 209, the connecting tube 208 supports the cleaning ring close to one end of the rotating ring body 109, while the friction ring 211 tightly contacts one end of the rotating ring body 109. This allows the rotating rotating ring body 109 to effectively drive the cleaning ring 210 to rotate. The rotating cleaning ring 210, through the guide groove, effectively accelerates the flow of the medium around the contact surface between the rotating ring body 109 and the stationary ring body 102, thereby reducing the solid content in the medium. Particles are less likely to accumulate around the contact surface between the moving ring body 109 and the stationary ring body 102. Simultaneously, the rotating cleaning ring 210 can effectively drive the collar 201 to rotate via the connecting pipe 208 and connecting rod 207. This rotating collar 201, through the elastic inner ring 202 and the connecting elastic ring 205, can effectively drive the corresponding injection ring 204 to rotate. The rotating injection ring 204 can then effectively drive the corresponding booster shaft 206 to rotate. Due to the limited space in the booster tank, the rotating booster shaft 206 can draw the surrounding medium into the booster tank through the injection hole, thereby increasing the pressure. The rotational extrusion of shaft 206 can effectively squeeze and inject into the corresponding guide groove through the connecting hole, thereby enabling the discharged high-speed flowing medium to clean the solid particles around the contact surface of the rotating ring body 109 and the stationary ring body 102. This effectively prevents the surrounding solid particles from affecting the operation of the equipment, effectively extending the actual service life of the equipment. At the same time, it can accelerate the flow of the surrounding high-temperature medium, thus ensuring that after the equipment is stopped, the solids remaining around the rotating ring body 109 and the stationary ring body 102 are not easily affected by excessively high temperatures and adhere and accumulate, thus facilitating the reuse of the equipment and enabling the equipment to efficiently perform its intended functions.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mechanical seal device suitable for media containing solid particles, characterized in that, include: A first functional mechanism (1) includes a mechanical seal cover (101) and a bushing body (104). A stationary ring body (102) is slidably inserted inside the mechanical seal cover (101). The bushing body (104) is slidably inserted inside the mechanical seal cover (101). A rotating ring seat body (105) is fixedly connected to the outer surface of the bushing body (104) by bolts. A limiting spring (106) is slidably embedded inside the rotating ring seat body (105). A pressure ring (107) is slidably inserted inside the rotating ring seat body (105). A rotating ring body (109) is slidably inserted inside the rotating ring seat body (105). The second functional mechanism (2) is disposed on the stationary ring body (102). The second functional mechanism (2) includes a collar (201), a pressure ring (203), a pressure boosting component, and a cleaning component. The collar (201) is slidably sleeved on the outer surface of the stationary ring body (102). The pressure boosting ring (203) is sleeved on the outer surface of the stationary ring body (102). Multiple pressure boosting grooves are equidistantly opened on one side of the outer surface of the pressure boosting ring (203). The pressure boosting component is disposed on the pressure boosting ring (203). The cleaning component... The pressurizing component, mounted on the collar (201), includes a pressurizing shaft (206). Multiple pressurizing shafts (206) are provided, with one end of each shaft rotatably connected to the inner wall of a corresponding pressurizing groove. The outer surface of the pressurizing shaft (206) is in contact with the inner wall of the pressurizing groove. A liquid injection ring (204) is fixedly connected to one end of each pressurizing shaft (206). A connecting hole is provided on the inner wall of each pressurizing groove. A linkage elastic ring (205) is fitted onto the outer surface of each liquid injection ring (204). The collar (201) is internally fitted with an elastic inner ring (202). The inner wall of the elastic inner ring (202) and the outer surfaces of multiple connecting elastic rings (205) are in contact. The cleaning component includes a connecting rod (207). Multiple connecting rods (207) are provided. Each connecting rod (207) passes through the outer surface of one side of the collar (201). A connecting tube (208) is slidably fitted on the outer surface of each connecting rod (207). A support spring (209) is slidably fitted on the outer surface of each connecting tube (208). A cleaning ring (210) is fixedly connected to one end of multiple connecting pipes (208). Multiple guide grooves are equidistantly opened on one side of the outer surface of the cleaning ring (210). The interior of each guide groove is connected to the interior of the corresponding connecting hole. A friction ring (211) is embedded inside the cleaning ring (210). The outer surface of one side of the friction ring (211) is in contact with the outer surface of one side of the moving ring body (109). Multiple injection holes are equidistantly opened on the outer surface of the pressure ring (203). The interior of each injection hole is connected to the interior of the corresponding pressure groove.

2. The mechanical seal device suitable for media containing solid particles as described in claim 1, characterized in that: The outer surface of one side of the stationary ring body (102) is provided with multiple positioning grooves at equal intervals, and the inner wall of one side of the mechanical seal cover (101) is fixedly connected with multiple positioning blocks at equal intervals along the circumferential direction, with one end of each positioning block extending into the corresponding positioning groove.

3. A mechanical seal device suitable for media containing solid particles as described in claim 2, characterized in that: The outer surface of the stationary ring body (102) is provided with a sealing groove, which is circular. An O-ring (103) is fitted inside the sealing groove on the outer surface of the stationary ring body (102).

4. A mechanical seal device suitable for media containing solid particles as described in claim 3, characterized in that: The outer surface of the pressure ring (107) is provided with multiple limiting grooves at equal intervals. One end of the pressure ring (107) extends into the interior of the limiting spring (106). Multiple limiting blocks are fixedly connected at equal intervals to the inner wall of the moving ring seat body (105). Each limiting block slides through the interior of the corresponding limiting groove.

5. A mechanical seal device suitable for media containing solid particles as described in claim 4, characterized in that: The moving ring body (109) is embedded with a moving ring sealing ring (108), and the outer surface of the moving ring body (109) is provided with multiple slots at equal intervals, and each of the limiting blocks slides through the corresponding slot.

6. A mechanical seal device suitable for media containing solid particles as described in claim 5, characterized in that: One end of the pressure ring (107) slides through the interior of the moving ring seal (108), and the other end of the pressure ring (107) extends into the interior of the moving ring body (109).

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