C-ring for high-temperature sealing of a radiant furnace tube quench cooler

Abstract

The present invention relates to the technical field of sealing rings, and specifically to a C-ring for high-temperature sealing of a radiant furnace tube quencher, comprising a sealing outer ring and a sealing inner ring, wherein the outer ring surface of the sealing outer ring is provided with a notch, and the inner side of the notch is provided with a ring groove. By adopting the setting of a skeleton mechanism, a combined sealing of the C-ring is achieved, the structural strength of the sealing outer ring and the sealing inner ring is increased, and the setting of a snap-fit assembly is combined to meet the requirements of rapid docking when assembling the upper ring cover plate and the lower ring cover plate, simplifying the docking process. When the surfaces of the upper ring cover plate and the lower ring cover plate are squeezed from the outside, sufficient plastic deformation flow can continue to be provided. Two sets of corresponding elastic extrusion assemblies are triggered, and the self-tightening mechanism inside the sealing inner ring is cooperated with to further seal the sealing surface of the radiant furnace tube quencher, thereby compensating for the joint surface gap between the inner and outer sealing rings and the equipment to be sealed, and also meeting the requirements of supporting the upper ring cover plate and the lower ring cover plate, thereby avoiding deformation and leakage of the sealing medium.

Description

Technical Field

[0001] The invention relates to the technical field of sealing rings, in particular to a C-shaped ring for high-temperature sealing of a radiation furnace tube quencher. Background Art

[0002] C-type sealing rings are mainly used in special working conditions with high temperature, high pressure, high vacuum, ultra-low temperature, long life, extremely low leakage rate and large pressure and temperature cycle requirements, such as grooved flanges or flat flanges of pressure vessels, heat exchangers, gas turbines, ultra-high vacuum equipment, semiconductor equipment and special valves. In the high-temperature sealing of radiation furnace tube quenchers, C-type sealing rings can play an important role to ensure the normal operation and safety of the equipment; C-type sealing rings generally use high-performance materials such as nickel-based alloys as their structural skeleton. These materials have the characteristics of high temperature resistance, high pressure resistance, aging resistance, high strength, etc., and can meet the stringent requirements of high-temperature sealing of radiation furnace tube quenchers.

[0003] In the prior art, for example, publication number CN116592141A discloses an ultra-high vacuum elastic energy storage metal seal ring and its manufacturing method. The seal ring comprises, from the inside out, a seal ring body, a seal ring interlayer, and a seal ring outer layer. The radial cross-section of the seal ring body is O-shaped, while the radial cross-sections of the seal ring interlayer and the seal ring outer layer are each C-shaped with a notch. The upper and lower sides of the seal ring outer layer each form a horizontal surface with a sealing protrusion in the middle. The manufacturing method involves first making the seal ring body from cold-drawn steel wire to form an annular O-shaped spring; then, forming the seal ring interlayer from a nickel alloy sheet on the seal ring body; and finally, forming the seal ring outer layer from a pure aluminum ring strip or a pure platinum ring strip on the seal ring interlayer. The sealing protrusion is then cut into the seal ring outer layer.

[0004] However, in actual use, even if hard materials are added as the skeleton structure of the sealing ring, there is still a problem of poor matching of the internal and external gaps, and a relative displacement difference in the radial direction of the flange sealing surface. There is a risk of damage to the seal or a decrease in the sealing stress, which leads to seal failure. The current sealing ring structure is single and cannot achieve enhanced self-tightening force, resulting in poor sealing effect due to medium leakage.

[0005] Therefore, the present invention proposes a C-ring for high-temperature sealing of a radiant furnace tube quencher to solve the problem that the existing sealing ring has a single structure and cannot enhance the self-tightening force, resulting in poor sealing effect of medium leakage. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a C-ring for high-temperature sealing of a radiant furnace tube quencher to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a C-shaped ring for high-temperature sealing of a radiant furnace tube quencher, comprising a sealing outer ring and a sealing inner ring, the outer ring surface of the sealing outer ring being provided with a notch, the inner side of the notch being provided with an annular groove, the inner side of the annular groove being provided with an annular spring, the inner ring surface of the sealing inner ring being provided with an inner tightening mechanism, the inner tightening mechanism comprising a fixed ring plate and an inner elastic tightening ring, skeleton mechanisms being provided at both ends of the sealing outer ring and the sealing inner ring, the skeleton mechanisms comprising an upper ring cover plate and a lower ring cover plate, the inner side surface of the upper ring cover plate being provided with an upper matching embedded top and an upper matching inlay plate, the inner side surface of the lower ring cover plate being provided with a lower matching embedded top and a lower matching inlay plate, the outer sides of the upper ring cover plate and the lower ring cover plate being fixedly mounted with an upper protruding ring and a lower protruding ring, respectively, the upper matching embedded top and the lower matching embedded top being provided with elastic extrusion components, and the inner sides of the upper matching inlay plate and the lower matching inlay plate being provided with docking components.

[0008] Preferably, the cross-sections of the upper matching panel and the lower matching panel are both isosceles trapezoidal structures, the outer surfaces of the upper matching panel and the lower matching panel are movably engaged with the outer surfaces of the sealing outer ring and the sealing inner ring respectively, and the upper matching top and the lower matching top are respectively engaged and installed on the inner sides of the upper matching panel and the lower matching panel.

[0009] Preferably, avoidance ring grooves are respectively provided on the inner walls of the upper matching panel and the lower matching panel, and the avoidance ring grooves are provided in six groups and are distributed in a circular array about the central axis of the upper matching panel and the lower matching panel. A fixed platform is provided between two adjacent groups of the avoidance ring grooves, and a reserved groove is provided on the inner wall of the fixed platform.

[0010] Preferably, the docking assembly includes an upper snap-fit ring plate and a lower snap-fit ring plate, the upper end of the upper snap-fit ring plate is fixedly connected to the inner top surface of the upper matching embedded top, the lower end of the lower snap-fit ring plate is fixedly connected to the inner bottom surface of the lower matching embedded top, and a snap-fit groove is provided on the lower inner wall of the upper snap-fit ring plate, and the inner surface of the snap-fit groove is adapted to be snap-fitted to the outer surface of the lower snap-fit ring plate.

[0011] Preferably, the elastic extrusion assembly includes a support sleeve, which has a hollow cylindrical structure. The lower end of the support sleeve is movably abutted against the inner surface of the upper matching panel, and the upper end of the support sleeve is fixedly connected to the inner wall of the upper matching top. A sliding block is slidably connected to the inner wall of the support sleeve, and the cross-section of the sliding block has a "T"-shaped structure.

[0012] Preferably, the lower end of the sliding block is fixedly connected with a resistance rod and a sleeve spring, the sleeve spring is movably sleeved on the outside of the resistance rod, the lower end of the resistance rod is fixedly provided with a tapered angle, the lower outer surface of the resistance rod passes through the bottom of the support sleeve and is slidably connected to the inner wall of the reserved groove, and the lower end of the sleeve spring is fixedly connected to the bottom surface of the inner cavity of the support sleeve.

[0013] Preferably, a horizontal groove is provided on the central inner wall of the sealing inner ring, and a push rod is movably connected to the inner surface of the horizontal groove, and one end of the push rod is movably abutted against the outer surface of the tapered angle.

[0014] Preferably, the inner ring surface of the sealing outer ring is fixedly provided with a protruding lining piece 1, the outer ring surface of the sealing inner ring is fixedly provided with a protruding lining piece 2, and the inner ring surface of the sealing inner ring is fixedly provided with a fixed ring plate. The fixed ring plates are provided in six groups and are arranged in a circular array about the central axis of the sealing inner ring.

[0015] Preferably, a protruding groove is provided on the inner wall of the fixing ring plate, and the inner surface of the protruding groove is matched one-to-one with the outer surface of the fixing ring plate.

[0016] Preferably, the two sides of the inner elastic tight ring are respectively fixedly connected to the inner surface of the fixed ring plate, the inner elastic tight ring is movably installed on the inner side of the fixed ring plate, a heat dissipation hole is opened on the inner wall of the inner elastic tight ring, and one side surface of the inner elastic tight ring is fixedly connected to one end of the push rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a C-ring for high-temperature sealing of a radiation furnace tube quencher. The C-ring realizes a combined seal by adopting the setting of a skeleton mechanism, increases the structural strength of the sealing outer ring and the sealing inner ring, cooperates with the setting of the clamping component, satisfies the quick docking of the upper ring cover plate and the lower ring cover plate during assembly, simplifies the docking process, and can continue to provide sufficient plastic deformation flow when the surfaces of the upper ring cover plate and the lower ring cover plate are squeezed from the outside. The two sets of corresponding elastic extrusion components are triggered, and cooperate with the self-tightening mechanism on the inside of the sealing inner ring to further seal the sealing surface of the radiation furnace tube quencher, make up for the joint surface gap between the inner and outer sealing rings and the equipment to be sealed, and also meet the support of the upper ring cover plate and the lower ring cover plate, avoiding deformation and causing leakage of the sealing medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic side view of the three-dimensional structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point B;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at B1 is enlarged;

[0024] Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at C;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at C1;

[0026] Figure 8 It is a schematic diagram of the disassembled cross-sectional structure of the present invention;

[0027] Figure 9 For the present invention Figure 8 A schematic diagram of the enlarged structure at D;

[0028] Figure 10 For the present invention Figure 8 The enlarged structural diagram of F;

[0029] Figure 11 For the present invention Figure 8 A schematic diagram of the structure at E is enlarged;

[0030] Figure 12 This is a schematic diagram of the cross-sectional structure of the connection between the sealing inner ring and the self-tightening mechanism of the present invention;

[0031] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure at G;

[0032] Figure 14 It is a schematic diagram of the disassembled structure of the sealing inner ring and the inner elastic tight ring of the present invention;

[0033] Figure 15 For the present invention Figure 14 A schematic diagram of the structure at H is enlarged;

[0034] Figure 16 This is a schematic diagram of the connection structure between the sealing inner ring and the self-tightening mechanism of the present invention;

[0035] Figure 17 It is a schematic diagram of the disassembled structure of the sealing inner ring and the self-tightening mechanism of the present invention;

[0036] Figure 18It is a schematic diagram of the disassembled structure of the docking assembly of the present invention;

[0037] Figure 19 It is a structural schematic diagram of the actual installation state of the C-ring and the flange surface of the present invention.

[0038] In the figure: 1. Sealing outer ring; 10. Notch; 100. Ring groove; 11. Ring spring; 12. Protruding lining 1; 2. Sealing inner ring; 20. Horizontal groove; 21. Boss; 201. Protruding lining 2; 22. Fixed ring plate; 220. Protruding groove; 23. Inner elastic tight ring; 230. Heat dissipation hole; 3. Upper ring cover; 31. Upper protruding ring; 32. Upper matching embedded top; 321. Support sleeve; 322. Sliding block; 323. Resistance rod; 3231. Conical angle; 324. Socket spring; 325. Push rod; 33. Upper matching panel; 34. Upper snap ring plate; 340. Embedding groove; 4. Lower ring cover; 41. Lower protruding ring; 42. Lower matching embedded top; 43. Lower matching panel; 430. Avoiding ring groove; 431. Fixed platform; 44. Lower snap ring plate. DETAILED DESCRIPTION

[0039] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] For example 1, please refer to Figure 1-19The present invention provides a technical solution: a C-shaped ring for high-temperature sealing of a radiation furnace tube quencher, comprising a sealing outer ring 1 and a sealing inner ring 2, the outer ring surface of the sealing outer ring 1 is provided with a notch 10, the inner side of the notch 10 is provided with a ring groove 100, the inner side of the ring groove 100 is provided with an annular spring 11, the inner ring surface of the sealing inner ring 2 is provided with an inner tightening mechanism, the inner tightening mechanism includes a fixed ring plate 22 and an inner elastic tightening ring 23, the two ends of the sealing outer ring 1 and the sealing inner ring 2 are respectively provided with a skeleton mechanism, the skeleton mechanism includes an upper ring cover plate 3 and a lower ring cover plate 4, the inner side surface of the upper ring cover plate 3 is provided with an upper matching embedded top 32 and an upper matching inlay plate 33, the inner side surface of the lower ring cover plate 4 is provided with a lower matching embedded top 42 and a lower matching inlay plate 43, the outer sides of the upper ring cover plate 3 and the lower ring cover plate 4 are respectively fixedly installed with upper protrusions The ring 31, the lower protruding ring 41, the upper matching embedded top 32 and the lower matching embedded top 42 are respectively provided with elastic extrusion components, and the inner sides of the upper matching panel 33 and the lower matching panel 43 are respectively provided with docking components; the inner side surface of the upper ring cover 3 is provided with a thumb groove 1, and the inner wall of the thumb groove 1 is provided with a heat dissipation hole 1, which respectively penetrates the inner wall of one side of the upper protruding ring 31 and the upper matching embedded top 32; the inner side surface of the lower ring cover 4 is provided with a thumb groove 2, and the inner wall of the thumb groove 2 is provided with a heat dissipation hole 2, which respectively penetrates the inner wall of one side of the lower protruding ring 41 and the lower matching embedded top 42; the thumb groove on the inner side of the C-shaped ring is added to reduce the difficulty of installation and disassembly of the combined C-shaped ring, facilitate buckling and maintenance, and the distribution of the heat dissipation holes can improve the overall heat dissipation of the C-shaped ring, making it easier to withstand high temperatures;

[0041] By adopting the setting of the skeleton mechanism, the combined seal of the C-ring is realized, the structural strength of the sealing outer ring 1 and the sealing inner ring 2 is increased, and the setting of the clamping component is cooperated to meet the quick docking of the upper ring cover plate 3 and the lower ring cover plate 4 during assembly, simplifying the docking process, and when the surfaces of the upper ring cover plate 3 and the lower ring cover plate 4 are squeezed from the outside, they can continue to provide sufficient plastic deformation flow, and the two sets of corresponding elastic extrusion components are triggered, and the inner self-tightening mechanism of the sealing inner ring 2 further seals the sealing surface of the radiation furnace tube quencher, while filling the gap between the joint surface of the inner and outer sealing rings and the equipment to be sealed, and also meeting the support of the upper ring cover plate 3 and the lower ring cover plate 4 to avoid deformation and leakage of the sealing medium; it is worth noting that by setting the annular spring 11, the supporting force of the structure can be increased, so that the structure can The annular spring 11, which can withstand higher pressure, is made of memory metal. When the sealing outer ring 1 and the sealing inner ring 2 are in a high temperature state, the squeezed and deformed annular spring 11 returns to its original shape, and the annular spring 11 applies a reset force to the notch 10 of the sealing outer ring 1, so that the sealing outer ring 1 still has elastic recovery ability under high temperature conditions, thereby improving the sealing effect of the entire C-shaped ring on the quencher part of the radiation furnace tube under high temperature conditions; and it should be noted that the upper protruding ring 31 and the lower protruding ring 41 are added to the outer contact surfaces of the upper ring cover plate 3 and the lower ring cover plate 4, which can provide a certain space for plastic deformation, and the upper protruding ring 31 and the lower protruding ring 41 here also serve as triggers for the elastic extrusion assembly. When the upper protruding ring 31 and the lower protruding ring 41 are squeezed inward, the two groups of elastic extrusion assemblies move relatively inward.

[0042] Example 2, refer to the attached Figure 1-19 On the basis of the first embodiment, in order to realize the rapid clamping assembly of the upper ring cover plate 3, the lower ring cover plate 4 and the sealing outer ring 1 and the sealing inner ring 2: the cross-section of the upper matching panel 33 and the lower matching panel 43 are both isosceles trapezoidal structures, the outer surfaces of the upper matching panel 33 and the lower matching panel 43 are movably engaged with the outer surfaces of the sealing outer ring 1 and the sealing inner ring 2 respectively, the upper matching top 32 and the lower matching top 42 are respectively engaged and installed on the inner sides of the upper matching panel 33 and the lower matching panel 43; the inner walls of the upper matching panel 33 and the lower matching panel 43 are respectively provided with an avoidance ring groove 430, and the avoidance ring groove 430 is provided with Six groups are arranged in a circular array about the central axis of the upper and lower matching panels 33 and 43. A fixed platform 431 is provided between two adjacent groups of avoidance ring grooves 430. The inner wall of the fixed platform 431 has a reserved groove. The docking assembly includes an upper snap ring plate 34 and a lower snap ring plate 44. The upper end of the upper snap ring plate 34 is fixedly connected to the inner top surface of the upper matching insert 32, and the lower end of the lower snap ring plate 44 is fixedly connected to the inner bottom surface of the lower matching insert 42. The lower inner wall of the upper snap ring plate 34 has a snap groove 340, and the inner surface of the snap groove 340 is adapted to snap-fit with the outer surface of the lower snap ring plate 44.

[0043] In this embodiment, when assembling the C-ring, the upper matching panel 33 and the lower matching panel 43 are arranged relative to each other, connecting the sealing outer ring 1 and the sealing inner ring 2, which serves as the basis of the skeleton structure. The upper matching top 32 and the lower matching top 42 are respectively adapted to be embedded with the upper matching panel 33 and the lower matching panel 43. Figure 4 As shown, the upper matching panel 33 and the lower matching panel 43 are higher than the sealing outer ring 1 and the sealing inner ring 2, and at this time the upper matching embedded top 32 and the lower matching embedded top 42 together with the upper ring cover plate 3 and the lower ring cover plate 4 are just clamped therewith, and the upper clamping ring plate 34 and the lower clamping ring plate 44 are adapted to form a quick docking of the inner cavity of the upper matching panel 33 and the lower matching panel 43, and the spliced upper clamping ring plate 34 and the lower clamping ring plate 44 can form a connecting piece and pass through the inner wall of the upper matching panel 33 and the lower matching panel 43, thereby increasing the installation structural strength between the upper ring cover plate 3, the lower ring cover plate 4 and the sealing outer ring 1 and the sealing inner ring 2; and through the clamping of the upper clamping ring plate 34 and the lower clamping ring plate 44, the supporting strength of the combined C-ring can be improved, thereby avoiding stress deformation during adaptation and extrusion of the radiation furnace tube quencher.

[0044] Example 3, refer to the attached Figure 1-19 On the basis of the second embodiment, in order to ensure that the upper ring cover plate 3 and the lower ring cover plate 4 are squeezed by the outside and at the same time increase the self-tightening of the sealing surface and the C-ring: the elastic extrusion component includes a support sleeve 321, the support sleeve 321 is a hollow cylindrical structure, the lower end of the support sleeve 321 is movably abutted against the inner surface of the upper matching panel 33, the upper end of the support sleeve 321 is fixedly connected to the inner wall of the upper matching top 32, and a sliding block 322 is slidably connected to the inner wall of the support sleeve 321, and the cross-section of the sliding block 322 is a "T"-shaped structure; the lower end of the sliding block 322 is fixedly connected to the abutment The contact rod 323 and the sleeve spring 324 are movably sleeved on the outside of the contact rod 323. The lower end of the contact rod 323 is fixedly provided with a tapered corner 3231. The lower outer surface of the contact rod 323 passes through the bottom of the support sleeve 321 and is slidably connected to the inner wall of the reserved groove. The lower end of the sleeve spring 324 is fixedly connected to the bottom surface of the inner cavity of the support sleeve 321. A horizontal groove 20 is formed on the central inner wall of the sealing inner ring 2. The inner surface of the horizontal groove 20 is movably connected to a push rod 325. One end of the push rod 325 movably contacts the outer surface of the tapered corner 3231.

[0045] In this embodiment, when the upper ring cover plate 3 and the lower ring cover plate 4 are squeezed from both sides, the upper protruding ring 31 and the lower protruding ring 41 cooperate with the elastic extrusion components on the inner sides of the upper matching embedded top 32 and the lower matching embedded top 42 respectively. Since the elastic extrusion components on the inner sides of the upper matching embedded top 32 and the lower matching embedded top 42 have the same structure, the structure of the inner side of the above matching embedded top 32 is illustrated as follows: when the upper protruding ring 31 is continuously squeezed inward by the external contact surface, the top of the sliding block 322 is squeezed. At this time, the sliding block 322 drives the contact rod 323 to move inward, and the sleeve spring 324 is squeezed to produce compression deformation, such as Figure 4-Figure 5 As shown, the conical angle 3231 set at the end of the resistance rod 323 squeezes the push rod 325 on one side, and the push rod 325 moves horizontally, thereby driving the push rod 325 to push the inner elastic tight ring 23 to move outward, and the inner elastic tight ring 23 is deformed and fits with the inner contact surface to be sealed, reducing the contact gap. In this way, it ensures that the C-ring can withstand the plastic deformation on both sides, and simultaneously realizes the gap compensation between the inner elastic tight ring 23 and the inner contact surface, further improving the sealing effect of the C-ring.

[0046] Example 4, refer to the attached Figure 1-19 On the basis of the third embodiment, in order to realize the elastic deformation of the fixed ring plate 22 and make up for the joint surface gap between the sealing inner ring 2 and the device to be sealed: the inner ring surface of the sealing outer ring 1 is fixedly provided with a protruding lining 12, the outer ring surface of the sealing inner ring 2 is fixedly provided with a protruding lining 201, and the inner ring surface of the sealing inner ring 2 is fixedly provided with a fixed ring plate 22. The fixed ring plate 22 is provided with six groups and arranged in a circular array about the central axis of the sealing inner ring 2. The inner wall of the fixed ring plate 22 is provided with a protruding groove 220, and the inner surface of the protruding groove 220 is adapted to the outer surface of the fixed ring plate 22 one by one; the two sides of the inner elastic tight ring 23 are respectively fixedly connected to the inner surface of the fixed ring plate 22, and the inner elastic tight ring 23 is movably installed on the inner side of the fixed ring plate 22. The inner wall of the inner elastic tight ring 23 is provided with a heat dissipation through hole 230, and one side surface of the inner elastic tight ring 23 is fixedly connected to one end of the push rod 325;

[0047] In this embodiment, the boss 21 is integrally formed with the sealing inner ring 2, and the protruding groove 220 provided on one side of the fixed ring plate 22 is adapted to the position of the boss 21. At this time, the protruding lining 201 serves as a movable channel for the push rod 325, and the deformation degree of the inner elastic tight ring 23 can be controlled according to the pushing distance of the push rod 325. It is worth noting that a heat dissipation through-hole 230 is provided on the inner wall of the inner elastic tight ring 23. The position of the heat dissipation through-hole 230 is distributed at the horizontal position of the boss 21. When the inner elastic tight ring 2 When the push rod 325 does not push the heat dissipation hole 230 and the boss 21 does not deform, the heat dissipation hole 230 is in a blocked state. When the inner elastic ring 23 is pushed and deformed by the push rod 325, the middle of the inner elastic ring 23 moves away from the boss 21, and the heat dissipation hole 230 is in an open state. This design can release the air pressure in the closed cavity formed by the inner elastic ring 23 and the fixed ring plate 22, thereby avoiding damage and pressure to the components.

[0048] The working principle and use process of the present invention are as follows: First, the C-shaped ring is set as a plurality of combined rings to form an assembly. When the C-shaped ring is assembled, the upper matching panel 33 and the lower matching panel 43 are relatively distributed to connect the sealing outer ring 1 and the sealing inner ring 2. This is used as the basis of the skeleton mechanism. The upper matching embedded top 32 and the lower matching embedded top 42 are respectively adapted and embedded with the upper matching panel 33 and the lower matching panel 43. The upper snap ring plate 34 and the lower snap ring plate 44 are adapted to form a quick docking of the inner cavity of the upper matching panel 33 and the lower matching panel 43. The spliced upper snap ring plate 34 and the lower snap ring plate 44 can form a connecting piece and pass through the inner wall of the upper matching panel 33 and the lower matching panel 43, thereby increasing the installation structural strength between the upper ring cover plate 3, the lower ring cover plate 4 and the sealing outer ring 1 and the sealing inner ring 2. Subsequently, when the upper ring cover plate 3 and the lower ring cover plate 4 are supported on both sides When the upper protruding ring 31 and the lower protruding ring 41 are squeezed, they cooperate with the elastic extrusion components on the inner sides of the upper matching embedded top 32 and the lower matching embedded top 42 respectively. When the upper protruding ring 31 is continuously squeezed inward by the outer contact surface, the top of the sliding block 322 is squeezed. At this time, the sliding block 322 drives the resistance rod 323 to move inward, and the sleeve spring 324 is squeezed and compressed. The tapered angle 3231 set at the end position of the resistance rod 323 squeezes the push rod 325 on one side, and the push rod 325 moves horizontally, thereby driving the push rod 325 to push the inner elastic tight ring 23 to move outward. The inner elastic tight ring 23 is deformed and fits with the inner contact surface to be sealed to reduce the contact gap. In this way, it ensures that the C-shaped ring can withstand the plastic deformation on both sides, and simultaneously realizes the gap compensation between the inner elastic tight ring 23 and the inner contact surface.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A C-shaped ring for high-temperature sealing of a radiant furnace tube quencher, comprising a sealing outer ring (1) and a sealing inner ring (2), characterized in that: The outer ring surface of the sealing outer ring (1) is provided with a notch (10), the inner side of the notch (10) is provided with a ring groove (100), the inner side of the ring groove (100) is provided with an annular spring (11), the inner ring surface of the sealing inner ring (2) is provided with an inner tightening mechanism, the inner tightening mechanism includes a fixed ring plate (22) and an inner elastic tightening ring (23), the two ends of the sealing outer ring (1) and the sealing inner ring (2) are respectively provided with a skeleton mechanism, the skeleton mechanism includes an upper ring cover plate (3) and a lower ring cover plate (4), the upper ring cover The inner side surface of the plate (3) is provided with an upper matching embedded top (32) and an upper matching panel (33), the inner side surface of the lower ring cover plate (4) is provided with a lower matching embedded top (42) and a lower matching panel (43), the outer side surfaces of the upper ring cover plate (3) and the lower ring cover plate (4) are respectively fixedly mounted with an upper protruding ring (31) and a lower protruding ring (41), the upper matching embedded top (32) and the lower matching embedded top (42) are respectively provided with elastic extrusion components, and the inner sides of the upper matching panel (33) and the lower matching panel (43) are respectively provided with docking components; The docking assembly includes an upper snap ring plate (34) and a lower snap ring plate (44), the upper end of the upper snap ring plate (34) is fixedly connected to the inner top surface of the upper matching embedded top (32), the lower end of the lower snap ring plate (44) is fixedly connected to the inner bottom surface of the lower matching embedded top (42), and a snap groove (340) is provided on the lower inner wall of the upper snap ring plate (34), and the inner surface of the snap groove (340) is adapted to snap-fit with the outer surface of the lower snap ring plate (44); The elastic extrusion assembly includes a support sleeve (321), the support sleeve (321) is a hollow columnar structure, the lower end of the support sleeve (321) is movably abutted against the inner surface of the upper matching panel (33), the upper end of the support sleeve (321) is fixedly connected to the inner wall of the upper matching embedded top (32), a sliding block (322) is slidably connected to the inner wall of the support sleeve (321), the cross section of the sliding block (322) is a "T"-shaped structure, the lower end of the sliding block (322) is fixedly connected to a resisting rod (323), and the lower end of the resisting rod (323) is fixedly provided with a tapered angle (3231); A horizontal groove (20) is provided on the central inner wall of the sealing inner ring (2), and a push rod (325) is movably connected to the inner surface of the horizontal groove (20), and one end of the push rod (325) is movably abutted against the outer surface of the tapered corner (3231); both sides of the inner elastic tight ring (23) are respectively fixedly connected to the inner surface of the fixed ring plate (22), and one side surface of the inner elastic tight ring (23) is fixedly connected to one end of the push rod (325).

2. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 1, characterized in that: The cross-sections of the upper matching panel (33) and the lower matching panel (43) are both isosceles trapezoidal structures. The outer surfaces of the upper matching panel (33) and the lower matching panel (43) are movably engaged with the outer surfaces of the sealing outer ring (1) and the sealing inner ring (2), respectively. The upper matching embedded top (32) and the lower matching embedded top (42) are respectively embedded and installed on the inner sides of the upper matching panel (33) and the lower matching panel (43).

3. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 2, characterized in that: The inner walls of the upper matching panel (33) and the lower matching panel (43) are respectively provided with avoidance annular grooves (430), and the avoidance annular grooves (430) are provided in six groups and are distributed in a circular array about the central axis of the upper matching panel (33) and the lower matching panel (43). A fixed platform (431) is provided between two adjacent groups of the avoidance annular grooves (430), and a reserved groove is provided on the inner wall of the fixed platform (431).

4. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 1, characterized in that: The lower end of the sliding block (322) is also fixedly connected to a sleeve spring (324), and the sleeve spring (324) is movably sleeved on the outside of the resistance rod (323). The lower outer surface of the resistance rod (323) passes through the bottom of the support sleeve (321) and is slidably connected to the inner wall of the reserved groove. The lower end of the sleeve spring (324) is fixedly connected to the bottom surface of the inner cavity of the support sleeve (321).

5. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 1, characterized in that: The inner ring surface of the sealing outer ring (1) is fixedly provided with a protruding lining piece 1 (12), the outer ring surface of the sealing inner ring (2) is fixedly provided with a protruding lining piece 2 (201), and the inner ring surface of the sealing inner ring (2) is fixedly provided with a boss (21), and the bosses (21) are provided in six groups and are arranged in a circular array about the central axis of the sealing inner ring (2).

6. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 5, characterized in that: A protruding groove (220) is provided on the inner wall of the fixed ring plate (22), and the inner surface of the protruding groove (220) is matched one-to-one with the outer surface of the boss (21).

7. The C-ring for high-temperature sealing of a radiant furnace tube quencher according to claim 1, characterized in that: A heat dissipation through hole (230) is provided on the inner wall of the inner elastic tight ring (23).

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