CN115306972A - High-temperature-resistant expansion joint and manufacturing method thereof - Google Patents
High-temperature-resistant expansion joint and manufacturing method thereof Download PDFInfo
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- CN115306972A CN115306972A CN202210742350.XA CN202210742350A CN115306972A CN 115306972 A CN115306972 A CN 115306972A CN 202210742350 A CN202210742350 A CN 202210742350A CN 115306972 A CN115306972 A CN 115306972A
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- ring
- corrugated pipe
- layer
- expansion joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a high-temperature resistant expansion joint and a manufacturing method thereof, belongs to the technical field of expansion joints, and aims to solve the problems that the heat resistance of a corrugated pipe is not strong enough, the installation between flange plates at two sides and a pipeline is not tight enough in the using process, and the disassembly and the reinstallation are relatively troublesome; according to the invention, the pipeline is arranged on one side of the flange plate, the meshing component is arranged on the outer surface of one side of the pipeline close to the flange plate, the rotating component is arranged on one side of the meshing component, and the fastening component is fixedly connected to one side of the meshing component close to the flange plate.
Description
Technical Field
The invention relates to the technical field of expansion joints, in particular to a high-temperature-resistant expansion joint and a manufacturing method thereof.
Background
An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures and reduce the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell, avoiding the strength damage, the instability damage and the tube pull-out damage, having more types of expansion joints, and having the common structures of wave shape, ring plate welding, clamping shell type and the like, wherein the wave shape expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.
Common wave form expansion joint on the market at present is made by the middle welding corrugated pipe of ring flange that two screw rods are connected, because corrugated pipe's heat-resisting ability is not strong enough when using, has influenced its life greatly to installation between the ring flange of in-process both sides and the pipeline of using is inseparable enough, dismantles and installs again when needs maintain it relatively troublesome.
To solve the above problems. Therefore, a high-temperature resistant expansion joint and a manufacturing method thereof are provided.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant expansion joint and a manufacturing method thereof, which solve the problems that in the prior art, a corrugated pipe is not strong enough in heat resistance, the service life of the corrugated pipe is greatly influenced, the flange plates on two sides and the pipeline are not tightly installed in the using process, and the corrugated pipe is relatively troublesome to disassemble and reassemble when needing to be maintained.
In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature-resistant expansion joint comprises an expansion joint main body, a heat-resistant mechanism and an installation mechanism, wherein the heat-resistant mechanism is arranged in the expansion joint main body, the installation mechanism is arranged on one side of the expansion joint main body, the expansion joint main body comprises a first corrugated pipe and flange plates which are fixedly connected to two ends of the first corrugated pipe, the first corrugated pipe is a component made of stainless steel, and an installation adjusting screw is arranged between the two groups of flange plates;
the heat-resisting mechanism comprises a second corrugated pipe arranged in the middle of the first corrugated pipe, the second corrugated pipe is a component which is formed by compounding a fluororubber layer, a stainless steel wire mesh layer and an Ethylene Propylene Diene Monomer (EPDM) layer, fixing assemblies are arranged on two sides of the second corrugated pipe, and fastening rings are arranged at the joints of the second corrugated pipe and the fixing assemblies;
the mounting mechanism comprises a pipeline arranged on one side of the flange plate, a meshing component is arranged on the outer surface of one side, close to the flange plate, of the pipeline, a rotating component is arranged on one side of the meshing component, and a fastening component is fixedly connected to one side, close to the flange plate, of the meshing component.
Further, fixed subassembly includes first solid fixed ring, still includes the solid fixed ring of fixed connection at first solid fixed ring second that is close to second corrugated pipe one side, and the solid fixed ring's of second outer wall diameter equals with second corrugated pipe inner wall diameter, and the tighrening ring suit is on the outer wall of second corrugated pipe, and the position of tighrening ring and the solid fixed ring of second are corresponding, and threaded connection has fastening bolt on the tighrening ring.
Furthermore, the fixing component also comprises a tabling hole arranged on the outer wall of the first fixing ring and a thread groove arranged on the flange plate, and the tabling hole corresponds to the thread groove.
Furthermore, a bolt rod is arranged on the thread groove, an external thread is arranged at the position, corresponding to the thread groove, of the bolt rod, and one end of the bolt rod penetrates through the thread groove and extends into the embedding hole.
Furthermore, the fluororubber layer and the ethylene propylene diene monomer rubber layer are in a wave tube shape, and the stainless steel wire net layer is a component woven by a plurality of groups of transverse spring-shaped stainless steel wires and a plurality of groups of transverse wave-shaped stainless steel wires.
The invention provides another technical scheme that: the manufacturing method of the high-temperature-resistant expansion joint comprises the following steps:
s01: bonding and forming: coating rubber glue on the outer layer of the vulcanized fluororubber layer, then surrounding the stainless steel wires on the outer surface of the fluororubber layer in one direction through a winding device, bonding the stainless steel wires on the outer layer of the fluororubber layer through the rubber glue, transversely inserting the stainless steel wires along the outer wall of the fluororubber layer in the process of surrounding the stainless steel wires to form a woven mesh shape for the stainless steel wires, then coating the rubber glue on the outer layer of the stainless steel wire mesh layer, extruding and deforming the fluororubber layer and the stainless steel wire mesh layer to be filled into the ethylene propylene diene monomer layer, enabling the outer side shape of the stainless steel wire mesh layer to correspond to the inner wall shape of the ethylene propylene diene monomer layer, then pressing the fluororubber layer and the ethylene propylene diene monomer layer through pressing equipment, and curing the rubber glue;
s02: assembling: two ends of a second corrugated pipe formed by compounding the fluororubber layer, the stainless steel wire mesh layer and the ethylene propylene diene monomer layer correspond to the second fixing rings, the inner wall of the second corrugated pipe wraps the second fixing rings, then the fastening rings are clamped on the outer surface of the second corrugated pipe corresponding to the second fixing rings, and the fastening rings and the second fixing rings fix the edge of the second corrugated pipe by screwing the fastening bolts;
s03: installation: and placing the assembled second corrugated pipe and the fixing assembly inside the first corrugated pipe, installing a bolt rod through a thread groove on the flange plate, inserting the inner side of the bolt rod into the embedded hole on the first fixing ring by screwing up the bolt rod to fix the flange plate and the first fixing ring, fixing the other group of flange plate and the first fixing ring according to the step, and finally installing the second corrugated pipe inside the first corrugated pipe.
Furthermore, an embedded pipe is fixedly connected to the outer wall of one side, close to the flange, of the pipeline, an embedded groove corresponding to the bolt rod is formed in one side of the embedded pipe, a preset groove is formed in one side, close to the flange, of the pipeline, and a sealing ring is arranged in the preset groove in an embedded mode.
Furthermore, the meshing component comprises an annular shell fixedly connected to the embedded pipe, a ring gear is rotatably connected to the interior of the annular shell, and an opening is formed in one side, close to the flange, of the annular shell.
Further, fastening components are provided with four groups, and four groups fastening components radially distribute in the annular shell and be close to one side of ring flange, fastening components includes the casing of fixed connection on annular shell, the inside of casing rotates and is connected with the umbelliform gear, and umbelliform gear is connected with the ring gear meshing, threaded connection has the threaded rod on the ring gear, the bottom of threaded rod runs through umbelliform gear and casing and is connected with the extrusion piece, the shape of cross section of extrusion piece is triangle-shaped, evenly distributed has the pressurized groove with extrusion piece shape and position one-to-one on the outer wall of ring flange, the inside sliding connection of threaded rod has square gag lever post, and square gag lever post runs through threaded rod and fixed connection on casing top inner wall.
Furthermore, the rotating assembly comprises a fixed seat fixedly connected to the outer wall of the other side of the annular shell, the top of the fixed seat is rotatably connected with a meshing wheel through a shaft, a through groove corresponding to the meshing wheel is formed in the annular shell, the meshing wheel penetrates through the through groove and is connected with the annular shell in a meshing mode, and the rotating assembly further comprises a rotating disc fixedly connected to the top of the meshing wheel.
Compared with the prior art, the invention has the beneficial effects that:
1. the outer layer of a fluororubber layer is bonded with a stainless steel wire mesh layer through rubber glue, the stainless steel wire mesh layer is bonded with an ethylene propylene diene monomer glue layer through the rubber glue, the fluororubber layer and the stainless steel wire mesh layer are extruded and deformed to be inserted into the ethylene propylene diene monomer glue layer, the fluororubber has excellent high-temperature resistance and corrosion resistance effects, the ethylene propylene diene monomer glue and the stainless steel wire mesh are matched to increase transverse stress, and the first corrugated pipe provides transverse deformation stress because the second corrugated pipe is arranged inside the first corrugated pipe, so that the service life of the expansion joint is prolonged, and the high-temperature resistance effect is also increased.
2. When a second corrugated pipe is installed, the second corrugated pipe and a fixing assembly are placed inside a first corrugated pipe, then a bolt rod is installed through a thread groove in a flange plate, the inner side of the bolt rod is inserted into an embedding hole in a first fixing ring through screwing the bolt rod, the flange plate and the first fixing ring are fixed, the installation is convenient, and the second corrugated pipe and the first corrugated pipe can bear the stretching of a pipeline simultaneously under the action of the bolt rod.
3. A high-temperature resistant expansion joint and a manufacturing method thereof are provided, when a first corrugated pipe and a second corrugated pipe are installed on a pipeline, an embedded groove is aligned to a bolt rod, a preset groove is made to correspond to the side surface of a first fixing ring through a sealing ring, a rotating disc is rotated, when the rotating disc rotates, an engaging wheel at the bottom of the rotating disc is engaged with a ring gear to rotate, when the ring gear rotates, a plurality of groups of umbrella gears are engaged to rotate simultaneously, when the umbrella gears rotate, a threaded rod moves under the action of a square limiting rod, an extrusion block moves to the inside of a pressure groove, and as the cross section of the extrusion block is triangular, the extrusion block extrudes the pressure groove, the pipeline approaches one side of a flange plate, the sealing ring is extruded between the pipeline and the first fixing ring to achieve sealing and convenient installation, when the first fixing ring is disassembled, only a rotating assembly needs to rotate reversely, the rotating disc enables the ring gear to engage with the umbrella gear to rotate, the extrusion block can be moved out of the pressure groove, convenient installation and disassembly are achieved, and maintenance is convenient.
Drawings
FIG. 1 is a schematic view of the entire structure of the high temperature resistant expansion joint of the present invention;
FIG. 2 is an exploded view of the high temperature resistant expansion joint of the present invention;
FIG. 3 is a disassembled view of the main body structure of the high temperature resistant expansion joint of the present invention;
FIG. 4 is an exploded view of the heat-resistant mechanism of the high-temperature-resistant expansion joint according to the present invention;
FIG. 5 is a sectional view of a second bellows structure of the high temperature resistant expansion joint of the present invention;
FIG. 6 is an enlarged view of the structure A of the high temperature resistant expansion joint of the present invention shown in FIG. 4;
FIG. 7 is a schematic view of the installation mechanism of the high temperature resistant expansion joint of the present invention;
FIG. 8 is an exploded view of the installation mechanism structure of the high temperature resistant expansion joint of the present invention;
fig. 9 is an exploded view of a part of the meshing wheel of the high temperature resistant expansion joint of the present invention.
In the figure: 1. an expansion joint body; 11. a first bellows; 12. a flange plate; 13. installing an adjusting screw rod; 2. a heat-resistant mechanism; 21. a second bellows; 211. a fluororubber layer; 212. a stainless steel wire mesh layer; 213. an ethylene propylene diene monomer layer; 22. a fixing component; 221. a first retaining ring; 222. a second fixing ring; 223. a fitting hole; 224. a thread groove; 225. a bolt shank; 226. an external thread; 23. a fastening ring; 231. fastening a bolt; 3. an installation mechanism; 31. a pipeline; 311. a fitting tube; 3111. a fitting groove; 312. presetting a groove; 313. a seal ring; 32. an engagement assembly; 321. an annular housing; 3211. a through groove; 322. a ring gear; 33. a fastening assembly; 331. a housing; 332. an umbrella gear; 333. a threaded rod; 334. extruding the block; 335. a square limiting rod; 336. a pressure tank; 34. a rotating assembly; 341. rotating the disc; 342. an engaging wheel; 343. a fixed seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problem that the service life of the corrugated pipe is greatly influenced due to insufficient heat resistance of the corrugated pipe, as shown in figures 1 to 6, the following preferred technical scheme is provided:
the utility model provides a high temperature resistant type expansion joint, including expansion joint main part 1 and the heat-resisting mechanism 2 of setting in expansion joint main part 1 inside, still including setting up the installation mechanism 3 in expansion joint main part 1 one side, expansion joint main part 1 includes first bellows 11 and fixed connection at the ring flange 12 at first bellows 11 both ends, and first bellows 11 is the component of being made by stainless steel, be provided with installation adjusting screw 13 between two sets of ring flange 12, heat-resisting mechanism 2 is including setting up the second bellows 21 in the middle of first bellows 11, second bellows 21 is by fluorine rubber layer 211, the component that stainless steel mesh layer 212 and EPDM glue film 213 are compound to be made, the both sides of second bellows 21 all are provided with fixed subassembly 22, the junction of second bellows 21 and fixed subassembly 22 is provided with fastening ring 23.
The fixing assembly 22 comprises a first fixing ring 221, and further comprises a second fixing ring 222 fixedly connected to one side of the first fixing ring 221 close to the second corrugated pipe 21, the diameter of the outer wall of the second fixing ring 222 is equal to the diameter of the inner wall of the second corrugated pipe 21, the fastening ring 23 is sleeved on the outer wall of the second corrugated pipe 21, the position of the fastening ring 23 corresponds to that of the second fixing ring 222, a fastening bolt 231 is connected to the fastening ring 23 in a threaded manner, the fixing assembly 22 further comprises a fitting hole 223 formed in the outer wall of the first fixing ring 221 and a threaded groove 224 formed in the flange plate 12, the fitting hole 223 corresponds to the threaded groove 224, a bolt rod 225 is arranged on the threaded groove 224, an external thread 226 is arranged at a position where the bolt rod 225 corresponds to the threaded groove 224, one end of the bolt rod 225 penetrates through the threaded groove 224 and extends into the fitting hole 223, the fluorine rubber layer 211 and the ethylene propylene diene rubber layer 213 are in a wave shape, and the stainless steel wire mesh layer 212 is a member woven by a plurality of sets of transverse spring-shaped stainless steel wires and a plurality of wave-shaped stainless steel wires.
Specifically, the outer layer of the fluorine rubber layer 211 is bonded to the stainless steel wire mesh layer 212 through rubber cement, the stainless steel wire mesh layer 212 is bonded to the ethylene propylene diene monomer layer 213 through rubber cement, the fluorine rubber layer 211 and the stainless steel wire mesh layer 212 are extruded and deformed to be inserted into the ethylene propylene diene monomer layer 213, the fluorine rubber has excellent high temperature resistance and corrosion resistance, the transverse stress is increased by matching with the ethylene propylene diene monomer layer and the stainless steel wire mesh layer, the second corrugated pipe 21 and the fixing member 22 are placed inside the first corrugated pipe 11 when the second corrugated pipe 21 is installed, the bolt rod 225 is installed through the thread groove 224 on the flange plate 12, the inner side of the bolt rod 225 is inserted into the embedding hole 223 on the first fixing ring 221 by screwing the bolt rod 225, the flange plate 12 and the first fixing ring 221 are fixed, the installation is convenient, and the second corrugated pipe 21 and the first corrugated pipe 11 can simultaneously bear the stretching of the pipeline 31 under the action of the bolt rod 225.
In order to solve the technical problems that the installation between the flanges at the two sides and the pipeline is not tight enough, and the disassembly and the reinstallation are relatively troublesome when the flanges need to be repaired, as shown in fig. 7 to 9, the following preferred technical solutions are provided:
the outer wall of one side of the pipeline 31 close to the flange plate 12 is fixedly connected with a chimeric tube 311, one side of the chimeric tube 311 is provided with a chimeric groove 3111 corresponding to a bolt rod 225, one side of the pipeline 31 close to the flange plate 12 is provided with a preset groove 312, a sealing ring 313 is arranged in the chimeric groove 312, the meshing component 32 comprises an annular shell 321 fixedly connected to the chimeric tube 311, the annular shell 321 is internally and rotatably connected with an annular gear 322, one side of the annular shell 321 close to the flange plate 12 is provided with an opening, four groups of fastening components 33 are arranged, the four groups of fastening components 33 are radially distributed on one side of the annular shell 321 close to the flange plate 12, the fastening component 33 comprises a shell 331 fixedly connected to the annular shell 321, the inner part of the shell 331 is rotatably connected with an umbrella gear 332, the umbrella gear 332 is meshed with the annular gear 322, a threaded rod 333 is connected to the annular gear 322 in a threaded manner, the bottom of the threaded rod 333 penetrates through the umbrella gear 332 and the shell 331 and is connected with an extrusion block 334, the cross section of the extrusion block 334 is triangular, the outer wall of the outer wall 12 is uniformly distributed with compression grooves which are in a one-to-one correspondence with the shape and the position of the square threaded rod 335, the inner wall of the threaded rod 336 is connected with a limit rod 335 in a sliding manner.
The rotating assembly 34 includes a fixed seat 343 fixedly connected to the outer wall of the other side of the annular housing 321, the top of the fixed seat 343 is rotatably connected with an engaging wheel 342 through a shaft, a through groove 3211 corresponding to the engaging wheel 342 is provided on the annular housing 321, the engaging wheel 342 penetrates through the through groove 3211 and is engaged with the annular housing 321, and the rotating assembly 34 further includes a rotating disc 341 fixedly connected to the top of the engaging wheel 342.
Specifically, when the first bellows tube 11 and the second bellows tube 21 are mounted on the pipe 31, the fitting groove 3111 is aligned with the bolt shaft 225, the predetermined groove 312 corresponds to the side surface of the first fixing ring 221 through the sealing ring 313, the rotating disc 341 is rotated, when the rotating disc 341 rotates, the engaging wheel 342 at the bottom of the rotating disc 341 engages with the ring gear 322 to rotate, the ring gear 322 simultaneously engages with a plurality of sets of the bevel gears 332 to rotate, when the bevel gears 332 rotate, the threaded rod 333 is moved by the action of the square stopper rod 335, so that the pressing block 334 moves into the pressing groove 336, since the cross-sectional shape of the pressing block 334 is triangular, the pressing block 334 presses the pressing groove 336, so that the pipe 31 approaches to one side of the flange 12, and the sealing ring 313 is pressed between the pipe 31 and the first fixing ring 221 to achieve sealing and convenient mounting, when the dismounting is performed, only the rotating assembly 34 needs to be rotated reversely, the rotating disc 341 rotates, so that the ring gear 322 engages with the bevel gear 332 to rotate, and the pressing block 334 can be removed from the inside of the pressing groove 336.
To further better explain the above embodiments, the present invention also provides a manufacturing method, a manufacturing method of a high temperature resistant expansion joint, comprising the steps of:
the method comprises the following steps: bonding and forming: coating rubber glue on the outer layer of the vulcanized fluororubber layer 211, then winding stainless steel wires on the outer surface of the fluororubber layer 211 along one direction by using a winding device, bonding the stainless steel wires on the outer layer of the fluororubber layer 211 by using the rubber glue, transversely inserting the stainless steel wires along the outer wall of the fluororubber layer 211 in the process of winding the stainless steel wires to form a woven mesh shape, then coating the rubber glue on the outer layer of the stainless steel wire mesh layer 212, extruding and deforming the fluororubber layer 211 and the stainless steel wire mesh layer 212 to be inserted into the ethylene-propylene-diene monomer layer 213, enabling the outer side shape of the stainless steel wire mesh layer 212 to correspond to the inner wall shape of the ethylene-propylene-diene monomer layer 213, then pressing the fluororubber layer 211 and the ethylene-propylene-diene monomer layer 213 by using pressing equipment, and curing the rubber glue;
step two: assembling: two ends of a second corrugated pipe 21 formed by compounding the fluororubber layer 211, the stainless steel mesh layer 212 and the ethylene propylene diene monomer layer 213 correspond to the second fixing rings 222, so that the inner wall of the second corrugated pipe 21 wraps the second fixing rings 222, then the fastening ring 23 corresponding to the second fixing rings 222 is clamped on the outer surface of the second corrugated pipe 21, and the fastening ring 23 and the second fixing rings 222 fix the edge of the second corrugated pipe 21 by screwing the fastening bolts 231;
step three: installation: the assembled second bellows 21 and the fixing member 22 are placed inside the first bellows 11, then the bolt shaft 225 is fitted through the screw groove 224 in the flange 12, the bolt shaft 225 is tightened so that the inner side of the bolt shaft 225 is inserted into the fitting hole 223 in the first fixing ring 221 to fix the flange 12 to the first fixing ring 221, and according to this step, the flange 12 and the first fixing ring 221 of another group are fixed, and finally the second bellows 21 is fitted inside the first bellows 11.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The utility model provides a high temperature resistant type expansion joint, includes expansion joint main part (1) and sets up at inside heat-resisting mechanism (2) of expansion joint main part (1), still including setting up installation mechanism (3) in expansion joint main part (1) one side, its characterized in that: the expansion joint main body (1) comprises a first corrugated pipe (11) and flange plates (12) fixedly connected to two ends of the first corrugated pipe (11), the first corrugated pipe (11) is a member made of stainless steel, and an installation adjusting screw (13) is arranged between the two groups of flange plates (12);
the heat-resisting mechanism (2) comprises a second corrugated pipe (21) arranged in the middle of the first corrugated pipe (11), the second corrugated pipe (21) is a component which is formed by compounding a fluororubber layer (211), a stainless steel wire mesh layer (212) and an Ethylene Propylene Diene Monomer (EPDM) glue layer (213), fixing components (22) are arranged on two sides of the second corrugated pipe (21), and a fastening ring (23) is arranged at the joint of the second corrugated pipe (21) and the fixing components (22);
the mounting mechanism (3) comprises a pipeline (31) arranged on one side of the flange plate (12), an engagement assembly (32) is arranged on the outer surface of one side, close to the flange plate (12), of the pipeline (31), a rotating assembly (34) is arranged on one side of the engagement assembly (32), and a fastening assembly (33) is fixedly connected to one side, close to the flange plate (12), of the engagement assembly (32).
2. A high temperature resistant expansion joint as claimed in claim 1, wherein: fixed subassembly (22) includes first solid fixed ring (221), still include fixed connection and be close to the solid fixed ring (222) of second bellows (21) one side in first solid fixed ring (221), and the outer wall diameter of the solid fixed ring of second (222) equals with second bellows (21) inner wall diameter, tighrening ring (23) suit is on the outer wall of second bellows (21), and the position of tighrening ring (23) is corresponding with solid fixed ring of second (222), threaded connection has fastening bolt (231) on tighrening ring (23).
3. A high temperature resistant expansion joint as claimed in claim 2, wherein: the fixing member (22) further includes a fitting hole (223) provided on an outer wall of the first fixing ring (221), and a screw groove (224) provided on the flange plate (12), and the fitting hole (223) corresponds to the screw groove (224).
4. A high temperature resistant expansion joint as claimed in claim 3, wherein: a bolt rod (225) is arranged on the thread groove (224), an external thread (226) is arranged at the position, corresponding to the thread groove (224), of the bolt rod (225), and one end of the bolt rod (225) penetrates through the thread groove (224) and extends into the embedding hole (223).
5. A high temperature resistant expansion joint as claimed in claim 1, wherein: the fluorine rubber layer (211) and the ethylene propylene diene monomer rubber layer (213) are in a wave tube shape, and the stainless steel wire mesh layer (212) is a member woven by a plurality of groups of transverse spring-shaped stainless steel wires and a plurality of groups of transverse wave-shaped stainless steel wires.
6. A method of manufacturing a high temperature resistant expansion joint according to any one of claims 1 to 5, wherein: the method comprises the following steps:
s01: bonding and forming: coating rubber glue on the outer layer of the vulcanized fluororubber layer (211), then winding stainless steel wires on the outer surface of the fluororubber layer (211) in one direction by a winding device, bonding the stainless steel wires on the outer layer of the fluororubber layer (211) by the rubber glue, transversely inserting the stainless steel wires along the outer wall of the fluororubber layer (211) in the process of winding the stainless steel wires to form a woven net shape, then coating the rubber glue on the outer layer of the stainless steel wire mesh layer (212), extruding and deforming the fluororubber layer (211) and the stainless steel wire mesh layer (212) to be inserted into the ethylene propylene diene monomer layer (213) so that the outer side shape of the stainless steel wire mesh layer (212) corresponds to the inner wall shape of the ethylene propylene diene monomer layer (213), then pressing the fluororubber layer (211) and the ethylene propylene diene monomer layer (213) by pressing equipment, and finishing the curing of the rubber glue;
s02: assembling: two ends of a second corrugated pipe (21) formed by compounding a fluorine rubber layer (211), a stainless steel wire mesh layer (212) and an ethylene propylene diene monomer (213) correspond to a second fixing ring (222), the inner wall of the second corrugated pipe (21) wraps the second fixing ring (222), then a fastening ring (23) is clamped on the outer surface of the second corrugated pipe (21) corresponding to the second fixing ring (222), and the fastening ring (23) and the second fixing ring (222) fix the edge of the second corrugated pipe (21) by screwing a fastening bolt (231);
s03: installation: the assembled second corrugated pipe (21) and the fixing assembly (22) are placed inside the first corrugated pipe (11), then a bolt rod (225) is installed through a thread groove (224) in the flange plate (12), the inner side of the bolt rod (225) is inserted into a fitting hole (223) in the first fixing ring (221) through tightening of the bolt rod (225), fixing of the flange plate (12) and the first fixing ring (221) is achieved, the flange plate (12) and the first fixing ring (221) in another group are fixed according to the step, and finally the second corrugated pipe (21) is installed inside the first corrugated pipe (11).
7. A high temperature resistant expansion joint as claimed in claim 1, wherein: the outer wall of one side, close to the flange plate (12), of the pipeline (31) is fixedly connected with a chimeric pipe (311), one side of the chimeric pipe (311) is provided with a chimeric groove (3111) corresponding to the bolt rod (225), one side, close to the flange plate (12), of the pipeline (31) is provided with a preset groove (312), and a sealing ring (313) is arranged in the preset groove (312) in a chimeric mode.
8. A high temperature resistant expansion joint as claimed in claim 7, wherein: the meshing component (32) comprises an annular shell (321) fixedly connected to the embedded pipe (311), a ring gear (322) is rotatably connected to the inside of the annular shell (321), and an opening is formed in one side, close to the flange plate (12), of the annular shell (321).
9. A high temperature resistant expansion joint as claimed in claim 8, wherein: fastening components (33) are provided with four groups, and four groups fastening components (33) radial distribution be close to one side of ring flange (12) in annular shell (321), fastening components (33) are including casing (331) of fixed connection on annular shell (321), the inside rotation of casing (331) is connected with umbelliform gear (332), and umbelliform gear (332) and ring gear (322) meshing connection, threaded connection has threaded rod (333) on ring gear (322), the bottom of threaded rod (333) is run through umbelliform gear (332) and casing (331) and is connected with extrusion block (334), the cross sectional shape of extrusion block (334) is triangle-shaped, evenly distributed has pressurized groove (336) with extrusion block (334) shape and position one-to-one on the outer wall of ring flange (12), the inside sliding connection of threaded rod (333) has square gag lever (335), and square gag lever (335) runs through threaded rod (333) and fixed connection is on casing (331) top inner wall.
10. A high temperature resistant expansion joint as claimed in claim 8, wherein: the rotating assembly (34) comprises a fixed seat (343) fixedly connected to the outer wall of the other side of the annular shell (321), the top of the fixed seat (343) is rotatably connected with a meshing wheel (342) through a shaft, a through groove (3211) corresponding to the meshing wheel (342) is formed in the annular shell (321), the meshing wheel (342) penetrates through the through groove (3211) and is meshed with the annular shell (321) to be connected, and the rotating assembly (34) further comprises a rotating disc (341) fixedly connected to the top of the meshing wheel (342).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742350.XA CN115306972A (en) | 2022-06-27 | 2022-06-27 | High-temperature-resistant expansion joint and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210742350.XA CN115306972A (en) | 2022-06-27 | 2022-06-27 | High-temperature-resistant expansion joint and manufacturing method thereof |
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| CN115306972A true CN115306972A (en) | 2022-11-08 |
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| CN202210742350.XA Pending CN115306972A (en) | 2022-06-27 | 2022-06-27 | High-temperature-resistant expansion joint and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231180A (en) * | 2023-11-10 | 2023-12-15 | 大庆辰平钻井技术服务有限公司 | Sand blasting perforation device and ultra-short radius horizontal well completion method |
-
2022
- 2022-06-27 CN CN202210742350.XA patent/CN115306972A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231180A (en) * | 2023-11-10 | 2023-12-15 | 大庆辰平钻井技术服务有限公司 | Sand blasting perforation device and ultra-short radius horizontal well completion method |
| CN117231180B (en) * | 2023-11-10 | 2024-02-02 | 大庆辰平钻井技术服务有限公司 | Sand blasting perforation device and ultra-short radius horizontal well completion method |
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