CN120488000A - Aluminum alloy flange sealing structure - Google Patents
Aluminum alloy flange sealing structureInfo
- Publication number
- CN120488000A CN120488000A CN202510985614.8A CN202510985614A CN120488000A CN 120488000 A CN120488000 A CN 120488000A CN 202510985614 A CN202510985614 A CN 202510985614A CN 120488000 A CN120488000 A CN 120488000A
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- flange
- ring
- sealing
- mounting
- aluminum alloy
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to the field of flange sealing, in particular to an aluminum alloy flange sealing structure which comprises a first flange and a second flange which are symmetrically arranged, wherein the first flange and the second flange are connected through a plurality of groups of bolt assemblies, and pipelines are fixedly arranged on the inner sides of the first flange and the second flange. When vibration occurs due to the influence of flowing medium in a pipeline after the first flange and the second flange are installed, after the sealing ring is worn, the extrusion pretightening force of the sealing ring and the convex ring can be adjusted through the cooperation of the extrusion ring and the adjusting mechanism, so that the convex ring can be tightly attached to the sealing ring, the sealing effect is ensured, the first flange and the second flange do not need to be detached and replaced, meanwhile, the convex ring is not easy to shift when the pretightening force of the installation bolt is reduced due to the cooperation of the locking mechanism and the bolt assembly, the convex ring can be further ensured to be tightly attached to the sealing ring, and the tightness after the first flange and the second flange are connected is further ensured.
Description
Technical Field
The invention relates to the field of flange sealing, in particular to an aluminum alloy flange sealing structure.
Background
In an industrial fluid conveying system, an aluminum alloy flange is used as a key connecting part, and is widely applied to various fields of chemical industry, energy transmission and the like by virtue of the excellent characteristics of light weight, high strength, corrosion resistance and the like. The sealing structure of the traditional aluminum alloy flange generally adopts a mode of reserving a ring groove on the flange connection surface, and an adaptive sealing ring is placed in the ring groove. When the flanges are jointed and assembled through the bolts, the flanges are pressed against the sealing rings through the pretightening force of the bolts, so that the sealing is formed on the flange joint surface, and the leakage of medium in the pipeline is effectively prevented.
However, in the process of circulating different mediums in a pipeline, when the flow speed of the mediums is too high, the pressure generated by the fluid can cause continuous micro-amplitude vibration of the flange connection part, the vibration can cause repeated micro-sliding friction between the flange and the sealing ring, the surface of the sealing ring is worn and the material is tired due to long-term action, the sealing effect of the flange is affected, meanwhile, the vibration of the flange can cause the bolt pretightening force to be continuously attenuated, so that the extrusion force applied to the sealing ring is insufficient, effective sealing cannot be formed, the sealing effect is further affected, and the leakage risk is increased.
Disclosure of Invention
In view of the above problems, the aluminum alloy flange sealing structure provided by the embodiment of the application can ensure the sealing performance of the connection between the first flange and the second flange when vibration occurs in the use process after the connection between the first flange and the second flange.
In order to achieve the purpose, the embodiment of the application provides the technical scheme that the aluminum alloy flange sealing structure comprises a first flange and a second flange which are symmetrically arranged, wherein the first flange and the second flange are connected through a plurality of groups of bolt assemblies, pipelines are fixedly arranged on the inner sides of the first flange and the second flange, an annular groove is formed in the left side of the first flange, a convex ring which is inserted into the annular groove is fixedly arranged on the right side of the second flange, and a sealing mechanism is arranged in the annular groove.
The sealing mechanism comprises a squeezing ring, a protecting piece and two attached sealing rings, wherein the squeezing ring, the protecting piece and the two attached sealing rings are arranged in the annular groove in a sliding mode, the protecting piece comprises a connecting ring located in the annular groove, the protecting ring is fixedly arranged on one side of the connecting ring, and mounting grooves matched with the connecting ring for use are formed in one sides, close to each other, of the protruding ring and the squeezing ring.
The flange I is fixedly provided with the collar on the right side, is provided with the actuating mechanism who promotes the extrusion ring removal and is used for adjusting two sealing washer and bulge loop pretightning force on the collar, and actuating mechanism is including fixedly setting up a plurality of movable rods on the extrusion ring right side, is provided with the extrusion piece that promotes the movable rod and remove in the collar.
A plurality of rectangular grooves are formed in the left side of the first flange, a locking mechanism matched with the bolt assembly and used for limiting and locking the convex ring is arranged in the rectangular grooves, and the locking mechanism comprises locking pieces fixedly arranged in the rectangular grooves.
Different mounting positions of the protecting piece and the sealing ring can adapt to different flowing media in the pipeline.
According to an advantageous embodiment, the first flange and the second flange are respectively provided with a plurality of mounting holes corresponding to the positions one by one, the mounting holes are communicated with the rectangular grooves, the bolt assembly comprises mounting bolts inserted in the corresponding two mounting holes, nuts are arranged on the outer side threads of the mounting bolts, the first flange and the second flange are tightly attached through the mounting bolts and the nuts, and the pretightening force of the bolt assembly enables the convex ring extrusion sealing mechanism to form sealing faces to be in sealing connection with the first flange and the second flange.
According to an advantageous embodiment, the protection element is located on the left side of the extrusion ring, and the connecting ring is located in a mounting groove on the extrusion ring, and the two fitted sealing rings are located between the protection ring and the convex ring.
According to an advantageous embodiment, the protection element is located on the left side of the extrusion ring, and the connecting ring is located in a mounting groove on the collar, and the two fitted sealing rings are located between the protection ring and the extrusion ring.
According to an advantageous embodiment, the mounting ring is provided with a thread groove far away from the inner side of the first flange, the pressing piece comprises a thread ring which is arranged in the thread groove in a threaded manner, the right ends of the moving rods penetrate into the thread groove and are fixedly provided with moving rings together, and the right sides of the moving rings are contacted with the left sides of the thread ring.
According to an advantageous embodiment, the outside cover of movable rod is equipped with reset spring one, and reset spring one's both ends are connected with screw thread groove inner wall and removal ring respectively, and the right side of screw thread ring is fixedly provided with the holding rod.
According to an advantageous embodiment, the locking piece includes the slider that slides and set up in the rectangular channel, and the slider is kept away from the fixed locking lever that is provided with in one side of mounting hole, and the outside cover of locking lever is equipped with reset spring two, and reset spring two's both ends are connected with the inner wall in slider and rectangular channel respectively, and the slider is kept away from one side of locking lever and is the slope form, and with the outside butt of mounting bolt.
According to an advantageous embodiment, the convex ring is provided with a plurality of limiting holes which are matched and spliced with the locking rods, and one end of the locking rods, which is far away from the sliding block, penetrates through the rectangular groove and is inserted into the corresponding limiting holes.
According to an advantageous embodiment, a rubber pad is fixedly arranged in the limiting hole, and one end, far away from the sliding block, of the locking rod is in contact with the rubber pad.
According to an advantageous embodiment, the left side of the first flange is provided with a plurality of positioning holes, and the right side of the second flange is fixedly provided with a plurality of positioning rods which are spliced with the positioning holes.
Compared with the prior art, the aluminum alloy flange sealing structure has the advantages that 1, when vibration occurs due to the influence of flowing media in a pipeline after the flange I and the flange II are installed, after the sealing ring is worn, the extrusion pretightening force of the sealing ring and the convex ring can be adjusted through the cooperation of the extrusion ring and the adjusting mechanism, so that the convex ring can be tightly attached to the sealing ring, the sealing effect is ensured, meanwhile, the sealing ring does not need to be detached and replaced, and meanwhile, the convex ring is not easy to shift due to the cooperation of the locking mechanism and the bolt component when the pretightening force of the installation bolt is reduced due to vibration, so that the convex ring can be tightly attached to the sealing ring, and the tightness after the flange I and the flange II are connected is ensured.
2. According to the invention, the bolt assembly and the locking mechanism are arranged, in the process of installing the flange I and the flange II, the locking rod can limit and lock the convex ring through the extrusion of the installation bolt to the sliding block, and when the pretightening force of the installation bolt is reduced due to the vibration of the flange I and the flange II, the convex ring is not easy to shift, so that the convex ring can be always attached to the sealing ring, and the sealing effect is ensured.
3. According to the invention, the sealing mechanism and the adjusting mechanism are arranged, the sealing ring is extruded by moving the extrusion ring through the rotating threaded ring, so that when the sealing ring is damaged due to vibration, the extrusion force of the extrusion ring on the sealing ring is further enhanced, gaps are effectively avoided between the sealing ring and the convex ring, meanwhile, the sealing ring is continuously clung to the inner wall of the annular groove, the sealing effect is ensured, and along with the prolonging of the service cycle of the flange I and the flange II, the extrusion force on the sealing ring can be reasonably changed by a worker through adjusting the use position of the extrusion ring, and the use tightness of the sealing ring is further ensured.
4. The protection piece is arranged in the invention, so that the positions of the protection piece and the sealing ring arranged in the annular groove can be reasonably changed according to different flowing media in the pipeline, the sealing effect is ensured, the protection effect on the sealing ring is improved, and the protection piece can adapt to different medium environments without changing parts.
Drawings
Fig. 1 is a structural diagram of the present invention.
FIG. 2 is a diagram showing the structure of the connection between the flange I and the mounting bolts in the present invention.
FIG. 3 is a diagram showing a connection structure of a second flange and a convex ring in the present invention.
Fig. 4 is a partial cross-sectional structural view of the present invention.
Fig. 5 is an enlarged view of the portion a of fig. 4.
FIG. 6 is a cross-sectional connection structure of the adjusting mechanism and the extrusion ring of the present invention.
FIG. 7 is a diagram showing the state of separation of the positions of the bulge loop, the seal ring, the guard and the squeeze ring when normal medium flows through the pipe.
FIG. 8 is a view showing the separation of the positions of the collar, the shield, the seal ring and the squeeze ring when corrosive medium is passed through the pipe according to the present invention.
In the drawing, reference numerals are 1, a first flange, 2, a second flange, 3, a bolt assembly, 31, a mounting bolt, 32, a nut, 4, a pipeline, 5, an annular groove, 6, a convex ring, 7, a sealing mechanism, 71, a pressing ring, 72, a protecting piece, 721, a connecting ring, 722, a protecting ring, 73, a sealing ring, 8, a mounting ring, 9, an adjusting mechanism, 91, a moving rod, 92, a pressing piece, 921, a threaded ring, 922, a moving ring, 923, a first return spring, 924, a holding rod, 10, a rectangular groove, 11, a locking mechanism, 111, a locking piece, 112, a sliding block, 113, a locking rod, 114, a second return spring, 12, a mounting hole, 13, a mounting groove, 14, a rubber pad, 15, a positioning hole, 16, a positioning rod, 17 and a limiting hole.
Detailed Description
The present application is described in further detail below with reference to fig. 1-8.
Example 1
Referring to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, an aluminum alloy flange sealing structure comprises a first flange 1 and a second flange 2 which are symmetrically arranged, wherein the first flange 1 and the second flange 2 are connected through a plurality of groups of bolt assemblies 3, the inner sides of the first flange 1 and the second flange 2 are fixedly provided with a pipeline 4, the left side of the first flange 1 is provided with an annular groove 5, the right side of the second flange 2 is fixedly provided with a convex ring 6 which is spliced with the annular groove 5, a sealing mechanism 7 is arranged in the annular groove 5, and the pretightening force of the bolt assemblies 3 enables the convex ring 6 to extrude the sealing mechanism 7 to form sealing surface to the first flange 1 and the second flange 2 in sealing connection.
Referring to fig. 3, 4 and 5, the first flange 1 and the second flange 2 are provided with a plurality of mounting holes 12 corresponding to each other in position one by one, the left side of the first flange 1 is provided with a plurality of rectangular grooves 10, the mounting holes 12 are communicated with the rectangular grooves 10, the bolt assembly 3 comprises mounting bolts 31 inserted in the corresponding two mounting holes 12, nuts 32 are arranged on the outer side threads of the mounting bolts 31, and the first flange 1 and the second flange 2 are tightly attached to each other through the mounting bolts 31 and the nuts 32.
Referring to fig. 2 and 3, a plurality of positioning holes 15 are formed on the left side of the first flange 1, and a plurality of positioning rods 16 which are inserted into the positioning holes 15 are fixedly arranged on the right side of the second flange 2.
When the flange I and the flange II 2 are installed, a worker aligns the positioning rod 16 on the flange II 2 with the positioning hole 15 on the flange I1, then inserts the positioning rod 16 into the positioning hole 15, at the same time, the convex ring 6 is also inserted into the annular groove 5, in the process that the convex ring 6 is completely inserted into the annular groove 5, the convex ring 6 presses the sealing mechanism 7 in the annular groove 5 to form a sealing surface, then the mounting bolts 31 sequentially penetrate through the corresponding mounting holes 12 on the flange I1 and the flange II 2, the nuts 32 are arranged on the mounting bolts 31, then the nuts 32 are screwed, the flange I1 and the flange II 2 are installed through the cooperation of the mounting bolts 31, and at the moment, the sealing connection of the flange I1 and the flange II 2 can be realized through the sealing mechanism 7.
Referring to fig. 5 and 7, the sealing mechanism 7 includes a compression ring 71 slidably disposed in the annular groove 5, a guard member 72 and two attached sealing rings 73, the guard member 72 includes a connection ring 721 disposed in the annular groove 5, a guard ring 722 is fixedly disposed on one side of the connection ring 721 (the guard ring 722 may be made of titanium, tantalum or nickel-based alloy, etc., and may be deformed when being compressed, and corrosion-resistant), and a mounting groove 13 for cooperating with the connection ring 721 is formed on each side of the bulge loop 6 and the compression ring 71.
Referring to fig. 7, the guard 72 is located on the left side of the extrusion ring 71, and the connecting ring 721 is located in the mounting groove 13 on the extrusion ring 71, and the two fitted seal rings 73 are located between the guard ring 722 and the collar 6.
In the process that the flange one 1 and the flange two 2 are close to each other, when the medium flowing in the pipeline 4 is normal medium, the protecting piece 72 is firstly placed in the annular groove 5, the connecting ring 721 is close to the extrusion ring 71, then the two sealing rings 73 are placed in the annular groove 5, the convex ring 6 is inserted into the annular groove 5 and then extrudes the two sealing rings 73, the connecting ring 721 is pushed to move into the mounting groove 13 on the extrusion ring 71, at the moment, the two sealing rings 73, the protecting ring 722 and the extrusion ring 71 are tightly attached to each other, the sealing rings 73 are extruded to generate elastic deformation to tightly fill the gap between the convex ring 6 and the annular groove 5, the flowing direction of the medium in the pipeline 4 to the annular groove 5 is shown by an arrow in fig. 7, so that a sealing barrier for the medium flowing in the pipeline 4 is formed through the sealing rings 73, the two attached sealing rings 73 form a double sealing structure, the sealing rings 73 contacted with the convex ring 6 bear main pressure, the sealing rings 73 far away from the convex ring 6 compensate a tiny leakage path, and the sealing effect is further improved.
Referring to fig. 1,2 and 4, a mounting ring 8 is fixedly arranged on the right side of the flange 1, an adjusting mechanism 9 for pushing the extrusion ring 71 to move and adjusting pretightening force between the two sealing rings 73 and the convex ring 6 is arranged on the mounting ring 8, the adjusting mechanism 9 comprises a plurality of moving rods 91 fixedly arranged on the right side of the extrusion ring 71, and an extrusion piece 92 for pushing the moving rods 91 to move is arranged in the mounting ring 8.
Referring to fig. 5 and 6, the inner side of the mounting ring 8 far away from the flange one 1 is provided with a screw groove, the pressing member 92 includes a screw ring 921 screw-arranged in the screw groove, right ends of the plurality of moving rods 91 are all penetrated into the screw groove and fixedly provided with a moving ring 922 together, and right sides of the moving ring 922 are contacted with left sides of the screw ring 921. The outside cover of movable rod 91 is equipped with reset spring one 923, and reset spring one 923's both ends are connected with screw groove inner wall and removal ring 922 respectively, and the right side of screw ring 921 is fixedly provided with holding rod 924.
After the flange one 1 and the flange two 2 are installed, when the medium flow rate flowing in the pipeline 4 is too fast, the flange one 1 and the flange two 2 can slightly vibrate, the sealing ring 73 in the annular groove 5 can be damaged due to vibration friction, in order to ensure the sealing effect, a worker can hold the holding rod 924 to drive the threaded ring 921 to rotate, the threaded ring 921 rotates to push the movable ring 922 to move in the mounting ring 8, the mounting ring 8 moves to drive the extrusion ring 71 to move through the movable rod 91, therefore the extrusion force of the extrusion ring 71 on the two sealing rings 73 can be further enhanced, gaps are effectively avoided between the sealing rings 73 and the convex ring 6, meanwhile, the sealing ring 73 is enabled to be continuously clung to the inner wall of the annular groove 5, the sealing effect of the flowing medium in the pipeline 4 is ensured, the flange one 1 and the flange two 2 are not required to be detached and the sealing ring 73 are replaced, and along with the extension of the service cycle of the flange one and the flange two 2, the use tightness of the sealing ring 73 can be further ensured by reasonably changing the extrusion force of the extrusion ring 71 through the use positions of the extrusion ring 71.
Referring to fig. 2, 4 and 5, a locking mechanism 11 which cooperates with the bolt assembly 3 to limit and lock the collar 6 is disposed in the rectangular groove 10, and the locking mechanism 11 includes a locking member 111 fixedly disposed in the rectangular groove 10. The locking piece 111 comprises a sliding block 112 which is arranged in the rectangular groove 10 in a sliding manner, a locking rod 113 is fixedly arranged on one side, away from the mounting hole 12, of the sliding block 112, a second return spring 114 is sleeved on the outer side of the locking rod 113, and two ends of the second return spring 114 are respectively connected with the sliding block 112 and the inner wall of the rectangular groove 10. The slider 112 is inclined on a side away from the lock lever 113, and abuts on the outer side of the mounting bolt 31.
Referring to fig. 3 and 5, the convex ring 6 is provided with a plurality of limiting holes 17 which are matched and spliced with the locking rod 113, one end of the locking rod 113 away from the sliding block 112 penetrates through the rectangular groove 10 and is inserted into the corresponding limiting hole 17, a rubber pad 14 is fixedly arranged in the limiting hole 17, and one end of the locking rod 113 away from the sliding block 112 is contacted with the rubber pad 14.
In the process of connecting the flange 1 and the flange 2 through the bolt assembly 3, when the mounting bolt 31 passes through the mounting hole 12 on the flange 1 and the flange 2, the mounting bolt 31 contacts with the sliding block 112 and extrudes the sliding block 112, the sliding block 112 slides in the rectangular groove 10, the sliding block 112 slides to drive the locking rod 113 to move towards a position close to the convex ring 6 and insert into the limiting hole 17, at the moment, the locking rod 113 contacts with the rubber pad 14 in the limiting hole 17, the locking rod 113 is prevented from directly and rigidly colliding with the inner wall of the limiting hole 17, and then a worker can install the nut 32 on the mounting bolt 31.
When the flange one 1 and the flange two 2 vibrate to cause the pretightening force of the mounting bolt 31 to be reduced, the convex ring 6 can be locked by utilizing the plugging fit of the locking rod 113 and the limiting hole 17, so that the convex ring 6 cannot shift, the convex ring 6 is ensured to be always contacted with the sealing ring 73, gaps are not easy to occur, and the sealing effect of a flowing medium in the pipeline 4 is further ensured.
Example two
Referring to fig. 8, the guard 72 is located on the left side of the compression ring 71, and the connecting ring 721 is located in the mounting groove 13 on the collar 6, with two conforming seal rings 73 located between the guard 722 and the compression ring 71.
When the medium flowing in the pipeline 4 is corrosive medium, two sealing rings 73 can be placed in the annular groove 5 in the process of installing the flange 1 and the flange 2, then the protecting piece 72 is placed in the annular groove 5, at the moment, the connecting ring 721 is close to the installation groove 13 on the convex ring 6, then the convex ring 6 is contacted with the connecting ring 721 and pushes the connecting ring 721 to move when being inserted into the annular groove 5, when the flange 1 is jointed with the flange 2, the connecting ring 721 is positioned in the installation groove 13 on the convex ring 6, then the protecting ring 722, the two sealing rings 73 and the extruding ring 71 are tightly jointed with each other, the flowing direction of the medium in the pipeline 4 into the annular groove 5 is shown by an arrow in fig. 8, at the moment, the protecting ring 722 is tightly jointed with the inner wall of the annular groove 5 by utilizing the characteristics of self corrosion resistance and deformability, the corrosive medium is prevented from penetrating to the position of the sealing rings 73, the protectiveness of the sealing rings 73 is greatly improved, and the service life of the sealing rings 73 is prolonged.
When the flange I and the flange II 2 are installed, the positions of the sealing ring 73 and the protecting piece 72 installed in the annular groove 5 can be reasonably adjusted according to different flowing media in the pipeline 4, when the flowing media in the pipeline 4 are normal media, the protecting piece 72 can be placed first and then the sealing ring 73 is placed, when the flowing media in the pipeline 4 are corrosive media, the protecting piece 72 can be placed first and then the protecting piece 73 can be placed, at the moment, the protecting property of the sealing ring 73 can be improved by utilizing the protecting piece 72, then when the flange I and the flange II 2 are mutually close to each other, the convex ring 6 can be inserted into the annular groove 5 to extrude the sealing ring 73, so that the gap between the convex ring 6 and the annular groove 5 is tightly filled by elastic deformation of the sealing ring 73, and a sealing barrier for flowing media in the pipeline 4 is formed.
When the mounting bolts 31 penetrate through the mounting holes 12 on the first flange 1 and the second flange 2, the convex ring 6 can be limited and locked by utilizing the matching of the locking mechanism 11, and when the medium flowing in the pipeline 4 is too fast, the convex ring 6 cannot shift in the process of slightly vibrating the first flange 1 and the second flange 2, so that the convex ring 6 can be always contacted with the sealing ring 73, a gap is not easy to appear, after the sealing ring 73 is worn due to vibration, the extrusion force on the sealing ring 73 can be regulated through the regulating mechanism 9, the gap between the sealing ring 73 and the convex ring 6 can be effectively avoided, and meanwhile, the sealing ring 73 is continuously clung to the inner wall of the annular groove 5, so that the sealing connection of the first flange 1 and the second flange 2 in the vibration process is ensured.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present invention, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and therefore, the present invention is not limited to the above-mentioned embodiments, and all equivalent changes according to the structure, shape and principle of the present invention should be covered in the scope of the present invention.
Claims (10)
1. The aluminum alloy flange sealing structure comprises a first flange and a second flange which are symmetrically arranged, wherein the first flange and the second flange are connected through a plurality of groups of bolt assemblies, and pipelines are fixedly arranged on the inner sides of the first flange and the second flange;
The sealing mechanism comprises a squeezing ring, a protecting piece and two attached sealing rings, wherein the squeezing ring, the protecting piece and the two attached sealing rings are arranged in the annular groove in a sliding manner, the protecting piece comprises a connecting ring positioned in the annular groove, one side of the connecting ring is fixedly provided with a protecting ring, and one side, close to each other, of the protruding ring and the squeezing ring is provided with a mounting groove matched with the connecting ring;
The right side of the first flange is fixedly provided with a mounting ring, the mounting ring is provided with an adjusting mechanism for pushing the extrusion ring to move so as to adjust the pretightening force of the two sealing rings and the convex ring, the adjusting mechanism comprises a plurality of moving rods fixedly arranged on the right side of the extrusion ring, and the mounting ring is internally provided with an extrusion piece for pushing the moving rods to move;
The left side of the flange I is provided with a plurality of rectangular grooves, a locking mechanism matched with the bolt assembly for limiting and locking the convex ring is arranged in the rectangular grooves, and the locking mechanism comprises a locking piece fixedly arranged in the rectangular grooves;
different mounting positions of the protecting piece and the sealing ring can adapt to different flowing media in the pipeline.
2. The aluminum alloy flange sealing structure according to claim 1, wherein the first flange and the second flange are provided with a plurality of mounting holes corresponding to each other in a one-to-one mode, the mounting holes are communicated with the rectangular groove, the bolt assembly comprises mounting bolts inserted into the two corresponding mounting holes, nuts are arranged on the outer threads of the mounting bolts, the first flange and the second flange are tightly attached through the mounting bolts and the nuts, and the pretightening force of the bolt assembly enables the convex ring to extrude the sealing mechanism to form sealing faces to the first flange and the second flange in a sealing connection mode.
3. The aluminum alloy flange sealing structure according to claim 1, wherein the protecting piece is located at the left side of the extrusion ring, the connecting ring is located in a mounting groove on the extrusion ring, and the two attached sealing rings are located between the protecting ring and the convex ring.
4. The aluminum alloy flange sealing structure according to claim 1, wherein the protecting piece is located at the left side of the extrusion ring, the connecting ring is located in the mounting groove on the convex ring, and the two attached sealing rings are located between the protecting ring and the extrusion ring.
5. The aluminum alloy flange sealing structure according to claim 1, wherein the inner side of the mounting ring far away from the first flange is provided with a thread groove, the pressing piece comprises a thread ring which is arranged in the thread groove in a threaded manner, right ends of the plurality of moving rods penetrate into the thread groove and are fixedly provided with moving rings together, and the right sides of the moving rings are contacted with the left sides of the thread ring.
6. The aluminum alloy flange sealing structure according to claim 5, wherein a first reset spring is sleeved on the outer side of the movable rod, two ends of the first reset spring are respectively connected with the inner wall of the thread groove and the movable ring, and a holding rod is fixedly arranged on the right side of the thread ring.
7. The aluminum alloy flange sealing structure according to claim 2, wherein the locking piece comprises a sliding block arranged in the rectangular groove in a sliding manner, a locking rod is fixedly arranged on one side, away from the mounting hole, of the sliding block, a second reset spring is sleeved on the outer side of the locking rod, two ends of the second reset spring are respectively connected with the sliding block and the inner wall of the rectangular groove, and one side, away from the locking rod, of the sliding block is in a slope shape and is in butt joint with the outer side of the mounting bolt.
8. The aluminum alloy flange sealing structure according to claim 7, wherein the convex ring is provided with a plurality of limiting holes matched and spliced with the locking rod, and one end of the locking rod, which is far away from the sliding block, penetrates through the rectangular groove and is inserted into the corresponding limiting hole.
9. The aluminum alloy flange sealing structure according to claim 8, wherein a rubber pad is fixedly arranged in the limiting hole, and one end of the locking rod, which is far away from the sliding block, is in contact with the rubber pad.
10. The aluminum alloy flange sealing structure according to claim 1, wherein a plurality of positioning holes are formed in the left side of the first flange, and a plurality of positioning rods which are inserted into the positioning holes are fixedly arranged on the right side of the second flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510985614.8A CN120488000B (en) | 2025-07-17 | 2025-07-17 | Aluminum alloy flange sealing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510985614.8A CN120488000B (en) | 2025-07-17 | 2025-07-17 | Aluminum alloy flange sealing structure |
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| CN120488000A true CN120488000A (en) | 2025-08-15 |
| CN120488000B CN120488000B (en) | 2025-09-12 |
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| CN202510985614.8A Active CN120488000B (en) | 2025-07-17 | 2025-07-17 | Aluminum alloy flange sealing structure |
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Cited By (1)
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| CN120709869A (en) * | 2025-08-26 | 2025-09-26 | 江苏龙腾电力设备制造有限公司 | A GIS shell structure with double sealing structure |
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| WO2024197685A1 (en) * | 2023-03-29 | 2024-10-03 | 江苏科技大学 | Multi-working-condition adaptive connecting device for subsea manifold |
| CN220470752U (en) * | 2023-08-07 | 2024-02-09 | 扬州市欧维佳机械有限公司 | Leak-proof pressure-resistant hydraulic control valve |
| CN220365815U (en) * | 2023-08-08 | 2024-01-19 | 浙江至丰法兰科技有限公司 | High-strength flange plate |
| CN221592078U (en) * | 2024-01-31 | 2024-08-23 | 奉新国控建设工程有限公司 | Sealing mounting flange of pressure pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120709869A (en) * | 2025-08-26 | 2025-09-26 | 江苏龙腾电力设备制造有限公司 | A GIS shell structure with double sealing structure |
| CN120709869B (en) * | 2025-08-26 | 2025-10-28 | 江苏龙腾电力设备制造有限公司 | GIS shell structure with double sealing structure |
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| CN120488000B (en) | 2025-09-12 |
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