CN114352812B - High-strength wear-resistant compression-resistant high-frequency straight welded steel pipe - Google Patents
High-strength wear-resistant compression-resistant high-frequency straight welded steel pipe Download PDFInfo
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- CN114352812B CN114352812B CN202210256646.0A CN202210256646A CN114352812B CN 114352812 B CN114352812 B CN 114352812B CN 202210256646 A CN202210256646 A CN 202210256646A CN 114352812 B CN114352812 B CN 114352812B
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Abstract
A high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe belongs to the technical field of steel pipes and aims to solve the problems that the existing single-layer welded steel pipe is poor in compression resistance due to the fact that a welding seam is fragile, welding cracks are easily caused after the welding seam of the welded steel pipe is extruded, and accidents are caused due to the fact that conveying materials inside the welded steel pipe leak from the welding seam; the existing single-layer welded steel pipe is impacted and damaged by the water hammer effect of the conveyed fluid in the long-term use process, and the service life of the welded steel pipe is influenced; the invention clamps the raised clamping plate through the limiting groove at the end of the main pipe body, and is welded in the positioning clamping groove by reversely buckling the metal clamping strip around the communicating hole, an opening spacer bush is arranged on the outer wall of the main pipe body after the sealing ball is used for fixing, the opening spacer bush is matched with the resin sealing plate and the sealing arc plate to protect the welding wire of the main pipe body, and an impacted plate with the water hammer eliminating effect is arranged on the inner wall of the main pipe body to eliminate the fluid water hammer; the invention has good use safety and is beneficial to eliminating the water hammer effect of the pipeline.
Description
Technical Field
The invention relates to the technical field of steel pipes, in particular to a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe.
Background
The welded steel pipe is a steel pipe which is formed by bending and deforming a steel strip or a steel plate into a round shape, a square shape and the like and then welding, and has a seam on the surface, wherein a blank adopted by the welded steel pipe is the steel plate or the steel strip, and the welded steel pipe is generally 6 meters in fixed length. The welded steel tube has simple production process, high production efficiency, multiple varieties and specifications and less equipment investment, but the general strength is lower than that of a seamless steel tube. The method is widely applied to the fields of land and seabed petroleum, natural gas, petrochemical industry, mining, electric power, capital construction engineering, steel structures, water supply and the like.
However, most of the existing welded steel pipes are of single-layer structures, the welding seams are weak, so that the pressure resistance is poor, when the welded steel pipes are laid and used in transportation engineering, the welding seams of the welded steel pipes are extruded to easily cause welding fracture, and the conveying substances in the welded steel pipes leak from the welding seams to cause accidents; moreover, the existing single-layer welded steel pipe is impacted by the water hammer effect of the conveyed fluid in the long-term use process, the welding seam of the welded steel pipe is easily influenced and broken, and the steel pipe is directly damaged by the water hammer effect in serious conditions, so that the service life of the welded steel pipe is influenced.
Therefore, we propose a high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe.
Disclosure of Invention
The invention aims to provide a high-strength wear-resistant compression-resistant high-frequency straight welded steel pipe, and aims to solve the problems that the conventional welded steel pipe is of a single-layer structure, the welding seam is fragile, the compression resistance is poor, when the welded steel pipe is laid and used in transportation engineering, the welding seam of the welded steel pipe is easy to break after being extruded, so that conveying substances in the welded steel pipe leak from the welding seam, and accidents are caused, and the service life of the conventional single-layer welded steel pipe is influenced due to the impact damage of the water hammer effect of conveying fluid in the long-term use process.
In order to achieve the purpose, the invention provides the following technical scheme: a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe comprises a welded steel pipe body and an anticorrosive coating coated on the inner wall of the welded steel pipe body, wherein the thickness of the anticorrosive coating is at least 2mm, an outer protective sleeve is arranged on the outer wall of the welded steel pipe body, compression-resistant reinforcing rings are fixedly sleeved on the outer wall of the outer protective sleeve at uniform intervals, and frosted protrusions are uniformly arranged on the outer wall of the outer protective sleeve among the compression-resistant reinforcing rings; the welded steel tube body is including being responsible for the body and seting up in being responsible for on the lateral wall of body one end spacing groove, even interval is provided with positioning channel section on the outer wall of the body of being responsible for of the spacing groove outside, positioning channel section sets up in the terminal border department of the body of being responsible for of the same end of spacing groove, and positioning channel section keeps away from and is responsible for body end lateral wall one end and seted up the intercommunicating pore, positioning channel section is linked together with the spacing groove through the intercommunicating pore, be responsible for the protruding cardboard of fixedly connected with on the lateral wall of the body other end, correspond positioning channel section department difference fixedly connected with metal card strip on the terminal outer wall of protruding cardboard, the metal card strip is used for sealing the welded joint of being responsible for the body, the end of metal card strip is provided with arc guide portion, and be provided with the fixing base on the metal card strip outer wall of the adjacent department of arc guide portion, evenly be provided with anti-skidding filament on the lateral wall of fixing base.
Furtherly, the inner wall that its port one side was kept away from to intercommunicating pore port inner wall and spacing groove is parallel and level mutually, and protruding cardboard closely pegs graft in the spacing inslot time, and the metal card strip is worn to detain in positioning channel section after the intercommunicating pore, and the laminating of the terminal arc guide portion of metal card strip is responsible for body end outer wall, and metal card strip and arc guide portion outer wall all are parallel and level mutually with positioning channel section port.
Furthermore, when the metal clamping strip is buckled in the positioning clamping groove, the tail ends of the anti-skidding filaments extend to the outside of the port of the positioning clamping groove from two sides of the metal clamping strip, the tail ends of the anti-skidding filaments are bent, butted and welded into sealing balls, and the sealing balls are arranged on the outer wall of the gap between the main pipe body and the metal clamping strip.
Further, the fixed opening spacer that has cup jointed on the outer wall of the main pipe body, the opening of opening spacer aligns the welding gap of the main pipe body, be provided with the resin closing plate on the main pipe body outer wall between opening spacer opening, be provided with the involution arc on the outer wall of resin closing plate, involution arc outer wall and opening spacer looks parallel and level, and involution arc both sides border department evenly is provided with the mounting hole, the location nail is installed to the inner chamber of mounting hole, the location nail end runs through the resin closing plate and extends to in the main pipe body lateral wall.
Furthermore, the resin sealing plate is formed by coating epoxy resin after melting on the outer wall of the welding joint of the main pipe body and solidifying, the resin sealing plate covers the welding joint of the main pipe body and the positioning clamping groove comprehensively, and the thickness of the resin sealing plate is not less than 5 mm.
Further, evenly be provided with the mounting groove on being responsible for the inner wall of body, the bottom plate department of mounting groove is provided with the sealed container chamber, and the sealed container chamber is close to mounting groove port one side and is provided with the piston rod, and the terminal fixedly connected with mounting panel of piston rod is provided with the impactee plate on the outer wall of mounting panel, and the impactee plate extends to the mounting groove port outside, and evenly is provided with honeycomb holes on the impactee plate.
Further, outer lag is including fixed ceramic sleeve and the heat preservation that sets up on ceramic sleeve outer wall that cup joints on the opening spacer sleeve outer wall, and the activity has cup jointed the alloy sleeve on the outer wall of heat preservation, is provided with the ring channel between the lateral wall of alloy sleeve and heat preservation, and the inner chamber activity block of ring channel has the steel ball, and the parcel is provided with the alumina membrane on the telescopic outer wall of alloy.
The invention provides another technical scheme that: a processing method of a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe comprises the following steps:
S1: placing a steel plate for preparing a welded steel pipe in an environment of 770-790 ℃ for quenching, cooling to room temperature, bending the steel plate by using a roller type bending machine, and guiding two ends of the steel plate to be closed;
s2: when the two ends of the steel plate are close to be closed, the metal clamping strips on the outer wall of the raised clamping plate extend into the limiting grooves on the side wall of the other end of the main pipe body, then the raised clamping plate is guided to be inserted into the limiting grooves, and after the raised clamping plate is sealed and inserted into the limiting grooves, the metal clamping strips are guided by the arc-shaped guide parts to penetrate out of the communicating holes;
s3: welding the closed main pipe body gap, reversely hammering the metal clamping strip after penetrating through the communicating hole to enable the metal clamping strip to be buckled in the positioning clamping groove, drawing out the anti-skid filaments from the gaps at the two sides of the metal clamping strip in advance, and then welding the metal clamping strip and the main pipe body;
s4: after the metal clamping strips are welded, twisting the tail ends of the drawn anti-skid filaments into a group, fusion-welding the twisted anti-skid filaments into a sealing ball, fixedly connecting the sealing ball to the outer wall of the gap between the main pipe body and the metal clamping strips, and then arranging an opening spacer bush on the outer wall of the main pipe body to complete the installation of the resin sealing plate and the sealing arc plate;
s5: after the opening spacer bush, the resin sealing plate and the sealing arc plate are installed, the outer protective sleeve is fixedly sleeved on the outer wall of the opening spacer bush, and the welded steel pipe is manufactured.
Further, the installation of the open spacer comprises the following steps:
s401: uniformly coating hot melt adhesive on the outer wall of one side of the main pipe body away from the welding seam, sleeving the opening spacer bush on the outer wall of the main pipe body, rotationally adjusting the opening of the opening spacer bush to be aligned with the welding seam of the main pipe body, and then stably pressing the opening spacer bush to enable the opening spacer bush to be fixedly connected with the main pipe body;
s402: after the opening spacer bush is fixed, sealing the two ends of the main pipe body to form an inward groove at the port of the opening spacer bush, painting epoxy resin on the outer wall of a welding joint of the main pipe body at the opening spacer bush to enable the thickness of the epoxy resin to be not less than 5mm, waiting for cooling, and forming a resin sealing plate after the epoxy resin is solidified;
s403: make the mounting hole in involution arc both ends border department, on laminating the involution arc in resin seal plate outer wall, install the location nail and run through resin seal plate in the mounting hole, the location nail is connected and is responsible for body and involution arc, removes the closing cap of being responsible for the body end afterwards.
Further, the installation of the outer protective sleeve comprises the following steps:
s501: after the outer walls of the opening spacer bush and the sealing arc-shaped plate are coated with hot melt adhesive, the ceramic sleeve is fixedly sleeved on the outer wall of the opening spacer bush, and after the hot melt adhesive is cooled, a heat-insulating layer is sleeved on the outer wall of the ceramic sleeve in a similar manner;
S502: steel balls are filled in the annular groove on the outer wall of the heat insulation layer, and the alloy sleeve is sleeved on the outer wall of the heat insulation layer while the annular groove on the inner wall of the alloy sleeve is buckled and sealed with the steel balls;
s503: the alloy sleeve is arranged and then wraps the aluminum oxide film on the outer wall of the alloy sleeve in a laminating manner, and compression-resistant reinforcing rings are fixedly sleeved on the outer wall of the aluminum oxide film at uniform intervals.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe, wherein a side wall at one end of a main pipe body is provided with a limiting groove, positioning clamping grooves are uniformly arranged on the outer wall of the main pipe body at intervals outside the limiting groove, one end of each positioning clamping groove, which is far away from the end side wall of the main pipe body, is provided with a communicating hole, each positioning clamping groove is communicated with the limiting groove through the communicating hole, a raised clamping plate is fixedly connected on the side wall at the other end of the main pipe body, metal clamping strips are respectively and fixedly connected on the outer walls at the tail ends of the raised clamping plates, which correspond to the positioning clamping grooves, are used for sealing the welding seam of the main pipe body, the tail ends of the metal clamping strips are provided with arc-shaped guide parts, fixing seats are arranged on the outer walls of the metal clamping strips at the adjacent positions of the arc-shaped guide parts, anti-skid filaments are uniformly arranged on the side walls of the fixing seats, the metal clamping strips on the outer walls of the raised clamping plates extend into the limiting groove on the side wall at the other end of the main pipe body, and then the raised clamping plates are guided to be inserted into the limiting groove, after the protruding clamping plate is hermetically inserted into the limiting groove, the metal clamping strip is guided by the arc-shaped guide part to penetrate out of the communicating hole; welding the closed main pipe body gap, reversely hammering the metal clamping strip after penetrating through the communicating hole to enable the metal clamping strip to be buckled in the positioning clamping groove, drawing out the anti-skid filaments from the gaps at the two sides of the metal clamping strip in advance, and then welding the metal clamping strip and the main pipe body; the terminal distortion of the anti-skidding filament that will take out becomes group after the metal card strip welding is accomplished, the anti-skidding filament fusion welding that will distort into group becomes the sealing ball, make sealing ball fixed connection be in being responsible for on the outer wall of body and metal card strip gap department, through protruding cardboard grafting spacing groove, and utilize metal card strip back-off welding to be responsible for the body, it seals the metal card strip to assist with the sealing ball, the stability of being responsible for body welding seam junction has fully been guaranteed, avoid being responsible for the problem that the body welding seam easily brokenly and cause the accident by the extrusion, safety and reliability.
2. The invention provides a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe, wherein an opening spacer bush is fixedly sleeved on the outer wall of a main pipe body, the opening of the opening spacer bush is aligned with a welding gap of the main pipe body, a resin sealing plate is arranged on the outer wall of the main pipe body between the openings of the opening spacer bush, a sealing arc plate is arranged on the outer wall of the resin sealing plate, mounting holes are uniformly arranged at the edges of two sides of the sealing arc plate, positioning nails are mounted in the inner cavities of the mounting holes, the tail ends of the positioning nails penetrate through the resin sealing plate and extend into the side wall of the main pipe body, the opening spacer bush is sleeved on the outer wall of the main pipe body, the opening of the opening spacer bush is rotationally adjusted to be aligned with the welding gap of the main pipe body, then the resin sealing plate is arranged on the outer wall of the main pipe body welding gap at the opening spacer bush port, the sealing arc plate is arranged on the outer wall of the resin sealing plate, and the sealing arc plate is fixed by the positioning nails, and then the sealing arc plate and the sealing plate and the opening spacer bush port is welded, utilize resin seal board and involution arc to protect the main pipe body welding seam, avoid main pipe body welding seam department directly to receive the extrusion damage to influence its leakproofness, carry on spacingly to main pipe body welding seam department simultaneously, prevent that main pipe body welding seam department from receiving the pipeline internal fluid pressure to crowd brokenly, guarantee to be responsible for body welding seam welded stability.
3. The invention provides a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe, wherein the inner wall of a main pipe body is uniformly provided with mounting grooves, a sealing container cavity is arranged at the bottom plate of each mounting groove, a piston rod is arranged at one side of the sealing container cavity, which is close to the port of the mounting groove, the tail end of the piston rod is fixedly connected with a mounting plate, a impacted plate is arranged on the outer wall of the mounting plate, the impacted plate extends to the outside of the port of the mounting groove, honeycomb holes are uniformly formed in the impacted plate, when the flow rate of fluid conveyed in the main pipe body is too high, the conveyed fluid impacts the impacted plate, the fluid is dispersed from the honeycomb holes of the impacted plate, the fluid is prevented from directly and intensively impacting the impacted plate, the impacted plate pushes the mounting plate to move the piston rod, the piston rod is pushed to move towards the inner side of the sealing container cavity, the movement of the piston rod is utilized to absorb buffer the fluid, and the water hammer effect caused by the impact on the inner wall of the main pipe body when the flow rate of the fluid in the main pipe body is too high, effectively avoid the damage that the water hammer caused to being responsible for the body, prolong its life.
Drawings
FIG. 1 is a schematic view of the overall structure of a high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe according to the present invention;
FIG. 2 is a structural diagram of the closed state of the weld seam of the main pipe body of the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe of the present invention;
FIG. 3 is a structural diagram of the main pipe body of the high-strength wear-resistant pressure-resistant high-frequency straight welded steel pipe of the present invention showing the open state of the weld joint;
FIG. 4 is an enlarged schematic structural view of the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe at the position A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the structure of the opening spacer of the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe of the present invention;
FIG. 6 is a sectional view of the main pipe body of the high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe of the present invention;
FIG. 7 is an enlarged schematic view of the structure at B in FIG. 6 of the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe of the present invention;
FIG. 8 is a partial sectional view of an outer shield of the high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe of the present invention.
In the figure: 1. welding a steel pipe body; 11. a primary tube; 111. mounting grooves; 112. sealing the container cavity; 113. a piston rod; 114. mounting a plate; 115. an impacted plate; 116. honeycomb holes; 12. a limiting groove; 13. positioning the clamping groove; 14. a communicating hole; 15. a raised clamping plate; 16. a metal clamping strip; 17. an arc-shaped guide part; 18. a fixed seat; 19. anti-slip filaments; 110. sealing the ball; 2. an anti-corrosion coating; 3. an outer protective sleeve; 31. a ceramic sleeve; 32. a heat-insulating layer; 33. an alloy sleeve; 34. an annular groove; 35. steel balls; 36. an aluminum oxide film; 4. a compression-resistant reinforcing ring; 5. sanding protrusions; 6. an opening spacer bush; 7. a resin sealing plate; 8. sealing the arc-shaped plate; 9. mounting holes; 10. and (6) positioning the nail.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to solve the problems that the welding seam of the existing single-layer welded steel pipe is weak to cause poor pressure resistance, when the welded steel pipe is laid for use in transportation engineering, the welding seam of the welded steel pipe is extruded to easily cause welding fracture, so that the transported substances in the welded steel pipe leak from the welding seam to cause accidents, please refer to fig. 1-4, and the following preferred technical scheme is provided:
a high-strength wear-resistant compression-resistant high-frequency straight welded steel pipe comprises a welded steel pipe body 1 and an anticorrosive coating 2 coated on the inner wall of the welded steel pipe body 1, wherein the thickness of the anticorrosive coating 2 is at least 2mm, an outer protecting sleeve 3 is arranged on the outer wall of the welded steel pipe body 1, compression-resistant reinforcing rings 4 are fixedly sleeved on the outer wall of the outer protecting sleeve 3 at uniform intervals, and frosted protrusions 5 are uniformly arranged on the outer wall of the outer protecting sleeve 3 among the compression-resistant reinforcing rings 4; the welded steel tube body 1 comprises a main tube body 11 and a limiting groove 12 arranged on the side wall of one end of the main tube body 11, positioning clamping grooves 13 are uniformly arranged on the outer wall of the main tube body 11 outside the limiting groove 12 at intervals, the positioning clamping grooves 13 are arranged at the tail end edge of the main tube body 11 at the same end of the limiting groove 12, and one end of the positioning clamping groove 13 far away from the end wall of the main pipe body 11 is provided with a communicating hole 14, the positioning clamping groove 13 is communicated with a limiting groove 12 through the communicating hole 14, the side wall of the other end of the main pipe body 11 is fixedly connected with a raised clamping plate 15, the outer wall of the tail end of the raised clamping plate 15 corresponding to the positioning clamping groove 13 is respectively and fixedly connected with a metal clamping strip 16, the metal clamping strip 16 is used for sealing the welding seam of the main pipe body 11, the tail end of the metal clamping strip 16 is provided with an arc-shaped guiding part 17, and the outer wall of the metal clamping strip 16 adjacent to the arc-shaped guide part 17 is provided with a fixed seat 18, and the side wall of the fixed seat 18 is uniformly provided with anti-skidding filaments 19.
The inner wall of the port of the communicating hole 14 is flush with the inner wall of the limiting groove 12 far away from one side of the port, when the protruding clamping plate 15 is tightly inserted into the limiting groove 12, the metal clamping strip 16 penetrates around the communicating hole 14 and then is reversely buckled in the positioning clamping groove 13, the arc-shaped guiding part 17 at the tail end of the metal clamping strip 16 is attached to the outer wall of the end head of the main pipe body 11, and the outer wall of the metal clamping strip 16 and the outer wall of the arc-shaped guiding part 17 are flush with the port of the positioning clamping groove 13.
When the metal clamping strip 16 is buckled in the positioning clamping groove 13, the tail ends of the anti-skid filaments 19 extend from the two sides of the metal clamping strip 16 to the outside of the port of the positioning clamping groove 13, the tail ends of the anti-skid filaments 19 are bent, butted and welded into the sealing balls 110, and the sealing balls 110 are arranged on the outer wall of the gap between the main pipe body 11 and the metal clamping strip 16.
Specifically, the metal clamping strips 16 on the outer wall of the raised clamping plates 15 extend into the limiting groove 12 on the side wall of the other end of the main pipe body 11, then the raised clamping plates 15 are guided to be inserted into the limiting groove 12, and after the raised clamping plates 15 are sealed and inserted into the limiting groove 12, the metal clamping strips 16 are guided by the arc-shaped guide parts 17 to penetrate out of the communicating holes 14; then, welding the closed main pipe body 11 gap, reversely hammering the metal clamping strip 16 after the metal clamping strip passes through the communicating hole 14, buckling the metal clamping strip 16 in the positioning clamping groove 13, drawing the anti-skid filaments 19 out of the gap between the two sides of the metal clamping strip 16 in advance, and then welding the metal clamping strip 16 and the main pipe body 11; the terminal distortion of the antiskid filament 19 that will take out becomes group after the welding of metal card strip 16 is accomplished, will distort the antiskid filament 19 fusion welding that becomes group and become sealing ball 110, make sealing ball 110 fixed connection on the outer wall of main pipe body 11 and metal card strip 16 gap department, through protruding cardboard 15 grafting spacing groove 12, and utilize metal card strip 16 back-off welding main pipe body 11, it seals metal card strip 16 with sealing ball 110 to assist, fully guaranteed the steadiness of main pipe body 11 welding seam junction, avoid main pipe body 11 welding seam receive the extrusion easily to break the problem that causes the accident, safe and reliable.
In order to enhance the welding stability of the main pipe 11, as shown in fig. 3 and 5, the following preferred technical solutions are provided:
be responsible for fixed cover on the outer wall of the body 11 and have connect opening spacer 6, the opening alignment of opening spacer 6 is responsible for the welding gap of the body 11, be provided with resin seal plate 7 on being responsible for the body 11 outer wall between 6 openings of opening spacer, be provided with involution arc 8 on resin seal plate 7's the outer wall, 8 outer walls of involution arc and 6 looks parallel and level of opening spacer, and 8 both sides border departments of involution arc evenly are provided with mounting hole 9, location nail 10 is installed to the inner chamber of mounting hole 9, location nail 10 end runs through resin seal plate 7 and extends to in being responsible for the body 11 lateral walls.
The resin sealing plate 7 is formed by coating epoxy resin after melting on the outer wall of the welding joint of the main pipe body 11 and solidifying, the resin sealing plate 7 completely covers the welding joint of the main pipe body 11 and the positioning clamping groove 13, and the thickness of the resin sealing plate 7 is not less than 5 mm.
Specifically, cup joint opening spacer 6 on the outer wall of the main pipe body 11, 6 openings of rotatory regulation opening spacer align the main pipe body 11 welding seam, set up resin seal plate 7 on the main pipe body 11 welding seam outer wall in opening spacer 6 port department, and set up sealing arc 8 on resin seal plate 7 outer wall, utilize behind the fixed sealing arc 8 of staple 10, weld sealing arc 8 and opening spacer 6 port, utilize resin seal plate 7 and sealing arc 8 to protect the main pipe body 11 welding seam, avoid main pipe body 11 welding seam department directly to receive extrusion damage to influence its leakproofness, carry on spacingly to main pipe body 11 welding seam department simultaneously, prevent main pipe body 11 welding seam department from being crowded brokenly by pipeline internal fluid pressure, guarantee the stability of main pipe body 11 welding seam welding.
In order to solve the problem that the service life of the existing single-layer welded steel pipe is affected by the impact damage of the water hammer effect of the conveyed fluid in the long-term use process, please refer to fig. 6-8, and the following preferred technical scheme is provided:
evenly be provided with mounting groove 111 on the inner wall of main pipe body 11, the bottom plate department of mounting groove 111 is provided with sealed container chamber 112, sealed container chamber 112 is close to mounting groove 111 port one side and is provided with piston rod 113, the terminal fixedly connected with mounting panel 114 of piston rod 113, be provided with on mounting panel 114's the outer wall and receive impingement plate 115, it is outside to receive impingement plate 115 to extend to mounting groove 111 port, and receive evenly to be provided with honeycomb holes 116 on impingement plate 115.
Specifically, when being responsible for the inside fluid flow velocity of carrying of the body 11, carry fluid to strike and receive impact plate 115, the fluid disperses from honeycomb holes 116 that receive impact plate 115, avoid the direct concentrated impact of fluid to receive impact plate 115, receive impact plate 115 to promote mounting panel 114 by the fluid and remove piston rod 113, piston rod 113 is promoted and is removed to sealed container chamber 112 inboard, utilize piston rod 113's removal to absorb buffer fluid, prevent to be responsible for the inside fluid flow velocity of the body 11 and strike when too fast and be responsible for the body 11 inner wall and cause the water hammer effect, effectively avoid the water hammer to be responsible for the damage that the body 11 caused, prolong its life.
In order to better display the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe, the embodiment provides a processing method of the high-strength abrasion-resistant compression-resistant high-frequency straight welded steel pipe, which comprises the following steps:
s1: placing a steel plate for preparing a welded steel pipe in an environment of 770-790 ℃ for quenching, cooling to room temperature, bending the steel plate by using a roller type bending machine, and guiding two ends of the steel plate to be closed;
s2: when the two ends of the steel plate are close to be closed, the metal clamping strips 16 on the outer wall of the raised clamping plate 15 extend into the limiting groove 12 on the side wall of the other end of the main pipe body 11, then the raised clamping plate 15 is guided to be inserted into the limiting groove 12, and after the raised clamping plate 15 is sealed and inserted into the limiting groove 12, the metal clamping strips 16 are guided by the arc-shaped guide part 17 to penetrate out of the communicating holes 14;
s3: then, welding the closed main pipe body 11 gap, reversely hammering the metal clamping strip 16 after the metal clamping strip passes through the communicating hole 14, buckling the metal clamping strip 16 in the positioning clamping groove 13, drawing the anti-skid filaments 19 out of the gap between the two sides of the metal clamping strip 16 in advance, and then welding the metal clamping strip 16 and the main pipe body 11;
s4: after the metal clamping strip 16 is welded, twisting the tail ends of the drawn anti-skid filaments 19 into a group, welding the twisted anti-skid filaments 19 into a sealing ball 110 by welding, so that the sealing ball 110 is fixedly connected to the outer wall of the gap between the main pipe body 11 and the metal clamping strip 16, then arranging an opening spacer bush 6 on the outer wall of the main pipe body 11, and completing the installation of the resin sealing plate 7 and the sealing arc-shaped plate 8;
S5: after the opening spacer 6, the resin sealing plate 7 and the sealing arc plate 8 are installed, the outer protecting sleeve 3 is fixedly sleeved on the outer wall of the opening spacer 6, and the welded steel pipe is manufactured.
The installation of the open spacer 6 comprises the following steps:
s401: uniformly coating hot melt adhesive on the outer wall of one side, away from the welding seam, of the main pipe body 11, sleeving the opening spacer bush 6 on the outer wall of the main pipe body 11, rotatably adjusting the opening of the opening spacer bush 6 to be aligned with the welding seam of the main pipe body 11, and then stably pressing the opening spacer bush 6 to enable the opening spacer bush to be fixedly connected with the main pipe body 11;
s402: after the opening spacer bush 6 is fixed, sealing the two ends of the main pipe body 11 to form an invagination groove at the port of the opening spacer bush 6, painting epoxy resin on the outer wall of a welding joint of the main pipe body 11 at the opening spacer bush 6 to ensure that the thickness of the epoxy resin is not less than 5mm, waiting for cooling, and forming a resin sealing plate 7 after the epoxy resin is solidified;
s403: the sealing arc plate 8 is well equipped with mounting holes 9 at the edges of the two ends, then the sealing arc plate 8 is attached to the outer wall of the resin sealing plate 7, positioning nails 10 are mounted in the mounting holes 9 and penetrate through the resin sealing plate 7, the positioning nails 10 are connected with the main pipe body 11 and the sealing arc plate 8, and then the sealing cover at the end of the main pipe body 11 is removed.
The installation of the outer protective sheath 3 comprises the following steps:
S501: after hot melt adhesive is coated on the outer walls of the opening spacer bush 6 and the sealing arc-shaped plate 8, fixedly sleeving the ceramic sleeve 31 on the outer wall of the opening spacer bush 6, and after the hot melt adhesive is cooled, sleeving a heat insulation layer 32 on the outer wall of the ceramic sleeve 31 in a sleeving manner;
s502: steel balls 35 are filled in the annular groove 34 on the outer wall of the heat insulation layer 32, and the alloy sleeve 33 is sleeved on the outer wall of the heat insulation layer 32 while the annular groove 34 on the inner wall of the alloy sleeve is buckled and sealed with the steel balls 35;
s503: after the alloy sleeve 33 is arranged, the aluminum oxide film 36 is attached to and wrapped on the outer wall of the alloy sleeve 33, and the compression-resistant reinforcing rings 4 are fixedly sleeved on the outer wall of the aluminum oxide film 36 at uniform intervals.
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.
Although 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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a stand wear and tear resistance to high frequency straight welded steel pipe of high strength, includes to weld steel pipe body (1) and coat anticorrosive coating (2) on welding steel pipe body (1) inner wall, the thickness of anticorrosive coating (2) is 2mm, its characterized in that at least: outer protecting sleeves (3) are arranged on the outer wall of the welded steel tube body (1), compression-resistant reinforcing rings (4) are fixedly sleeved on the outer wall of each outer protecting sleeve (3) at uniform intervals, and frosted bulges (5) are uniformly arranged on the outer wall of each outer protecting sleeve (3) between every two compression-resistant reinforcing rings (4); the welded steel tube body (1) comprises a main tube body (11) and a limiting groove (12) arranged on the side wall of one end of the main tube body (11), positioning clamping grooves (13) are uniformly arranged on the outer wall of the main tube body (11) at the outer side of the limiting groove (12) at intervals, the positioning clamping grooves (13) are arranged at the tail end edge of the main tube body (11) at the same end of the limiting groove (12), a communicating hole (14) is formed in one end, far away from the end wall of the end of the main tube body (11), of each positioning clamping groove (13), the positioning clamping grooves (13) are communicated with the limiting groove (12) through the communicating holes (14), a raised clamping plate (15) is fixedly connected to the side wall of the other end of the main tube body (11), metal clamping strips (16) are fixedly connected to the outer wall of the tail ends of the raised clamping plates (15) corresponding to the positioning clamping grooves (13), the metal clamping strips (16) are used for sealing the welding seams of the main tube body (11), and arc-shaped guide parts (17) are arranged at the tail ends of the metal clamping strips (16), and the outer wall of the metal clamping strip (16) at the adjacent part of the arc-shaped guide part (17) is provided with a fixed seat (18), and the side wall of the fixed seat (18) is uniformly provided with anti-skidding filaments (19).
2. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as set forth in claim 1, wherein: the inner wall of one side of a port of a communicating hole (14) is flush with the inner wall of one side of a port of a limiting groove (12), when a raised clamping plate (15) is tightly inserted into the limiting groove (12), a metal clamping strip (16) penetrates around the communicating hole (14) and then is reversely buckled in a positioning clamping groove (13), the arc-shaped guiding part (17) at the tail end of the metal clamping strip (16) is attached to the outer wall of the end of the main pipe body (11), and the outer walls of the metal clamping strip (16) and the arc-shaped guiding part (17) are flush with the port of the positioning clamping groove (13).
3. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as set forth in claim 2, wherein: when the metal clamping strip (16) is buckled in the positioning clamping groove (13), the tail end of the anti-skidding filament (19) extends to the outside of the port of the positioning clamping groove (13) from two sides of the metal clamping strip (16), the tail end of the anti-skidding filament (19) is bent, butted and welded into a sealing ball (110), and the sealing ball (110) is arranged on the outer wall of the gap between the main pipe body (11) and the metal clamping strip (16).
4. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as set forth in claim 3, wherein: be fixed the cover and connect opening spacer (6) on the outer wall of the main pipe body (11), the opening alignment of opening spacer (6) is responsible for the welding gap of the main pipe body (11), be provided with resin seal plate (7) on the main pipe body (11) outer wall between opening spacer (6) opening, be provided with involution arc (8) on the outer wall of resin seal plate (7), involution arc (8) outer wall and opening spacer (6) looks parallel and level, and involution arc (8) both sides border department evenly is provided with mounting hole (9), location nail (10) are installed to the inner chamber of mounting hole (9), location nail (10) end runs through resin seal plate (7) and extends to in the main pipe body (11) lateral wall.
5. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as claimed in claim 4, wherein: the resin sealing plate (7) is formed by coating epoxy resin after melting on the outer wall of the welding joint of the main pipe body (11) and solidifying, the resin sealing plate (7) covers the welding joint of the main pipe body (11) and the positioning clamping groove (13) completely, and the thickness of the resin sealing plate (7) is not less than 5 mm.
6. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as claimed in claim 5, wherein: evenly be provided with on the inner wall of main pipe body (11) mounting groove (111), the bottom plate department of mounting groove (111) is provided with sealed container chamber (112), sealed container chamber (112) are close to mounting groove (111) port one side and are provided with piston rod (113), the terminal fixedly connected with mounting panel (114) of piston rod (113), be provided with on the outer wall of mounting panel (114) and receive impingement plate (115), it extends to mounting groove (111) port outside to receive impingement plate (115), and evenly be provided with honeycomb holes (116) on receiving impingement plate (115).
7. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as set forth in claim 6, wherein: outer lag (3) including fixed ceramic sleeve (31) of cup jointing on opening spacer (6) outer wall with set up heat preservation (32) on ceramic sleeve (31) outer wall, the activity has cup jointed alloy sleeve (33) on the outer wall of heat preservation (32), be provided with ring channel (34) between the lateral wall of alloy sleeve (33) and heat preservation (32), the inner chamber activity block of ring channel (34) has steel ball (35), and the parcel is provided with alumina membrane (36) on the outer wall of alloy sleeve (33).
8. A high-strength abrasion-resistant high-frequency straight welded steel pipe as claimed in any one of claims 1 to 7, wherein the processing method comprises the steps of:
s1: placing a steel plate for preparing a welded steel pipe in an environment of 770-790 ℃ for quenching, cooling to room temperature, bending the steel plate by using a roller type bending machine, and guiding two ends of the steel plate to be closed;
s2: when the two ends of the steel plate are closed, the metal clamping strips (16) on the outer wall of the raised clamping plate (15) extend into the limiting groove (12) on the side wall of the other end of the main pipe body (11), then the raised clamping plate (15) is guided to be inserted into the limiting groove (12), and after the raised clamping plate (15) is sealed and inserted into the limiting groove (12), the metal clamping strips (16) are guided by the arc-shaped guide part (17) to penetrate out of the communicating holes (14);
s3: then welding the closed gap of the main pipe body (11), reversely hammering the metal clamping strip (16) after penetrating through the communicating hole (14) to enable the metal clamping strip (16) to be buckled in the positioning clamping groove (13), drawing out the anti-skidding thin wires (19) from the gap at two sides of the metal clamping strip (16) in advance, and then welding the metal clamping strip (16) and the main pipe body (11);
S4: after the metal clamping strip (16) is welded, twisting the tail ends of the drawn anti-skid filaments (19) into a mass, welding the anti-skid filaments (19) which are twisted into the mass into a sealing ball (110), fixedly connecting the sealing ball (110) to the outer wall of the gap between the main pipe body (11) and the metal clamping strip (16), then arranging an opening spacer bush (6) on the outer wall of the main pipe body (11), and finishing the installation of the resin sealing plate (7) and the sealing arc-shaped plate (8);
s5: after the opening spacer bush (6), the resin sealing plate (7) and the sealing arc-shaped plate (8) are installed, the outer protecting sleeve (3) is fixedly sleeved on the outer wall of the opening spacer bush (6), and the steel pipe is welded.
9. A high-strength abrasion-resistant pressure-resistant high-frequency straight welded steel pipe as claimed in claim 8, wherein the installation of the split spacer (6) comprises the steps of:
s401: uniformly coating hot melt adhesive on the outer wall of one side, far away from the welding seam, of the main pipe body (11), sleeving the opening spacer bush (6) on the outer wall of the main pipe body (11), rotatably adjusting the opening of the opening spacer bush (6) to align with the welding seam of the main pipe body (11), and then stably pressing the opening spacer bush (6) to enable the opening spacer bush to be fixedly connected with the main pipe body (11);
s402: after the opening spacer bush (6) is fixed, sealing the two ends of the main pipe body (11) to form an invagination groove at the port of the opening spacer bush (6), coating epoxy resin on the outer wall of the welding seam of the main pipe body (11) at the opening spacer bush (6) to wait for cooling after the thickness of the epoxy resin is not less than 5mm, and forming a resin sealing plate (7) after the epoxy resin is solidified;
S403: make mounting hole (9) in involution arc (8) both ends border department, will involution arc (8) laminate on resin seal board (7) outer wall after that, install location nail (10) and run through resin seal board (7) in mounting hole (9), location nail (10) are connected and are responsible for body (11) and involution arc (8), remove the closing cap of being responsible for body (11) end afterwards.
10. A high strength abrasion resistant high frequency straight welded steel pipe with pressure resistance as claimed in claim 9, characterized in that the mounting of the outer shield (3) comprises the steps of:
s501: after hot melt adhesive is coated on the outer walls of the opening spacer bush (6) and the sealing arc-shaped plate (8), the ceramic sleeve (31) is fixedly sleeved on the outer wall of the opening spacer bush (6), and after the hot melt adhesive is cooled, a heat insulation layer (32) is sleeved on the outer wall of the ceramic sleeve (31) in a similar manner;
s502: steel balls (35) are filled in the annular groove (34) on the outer wall of the heat insulation layer (32), and the alloy sleeve (33) is sleeved on the outer wall of the heat insulation layer (32) while the annular groove (34) on the inner wall of the alloy sleeve is buckled and sealed with the steel balls (35);
s503: after the alloy sleeve (33) is arranged, an aluminum oxide film (36) is attached to and wraps the outer wall of the alloy sleeve (33), and compression-resistant reinforcing rings (4) are fixedly sleeved on the outer wall of the aluminum oxide film (36) at uniform intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210256646.0A CN114352812B (en) | 2022-03-16 | 2022-03-16 | High-strength wear-resistant compression-resistant high-frequency straight welded steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210256646.0A CN114352812B (en) | 2022-03-16 | 2022-03-16 | High-strength wear-resistant compression-resistant high-frequency straight welded steel pipe |
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| Publication Number | Publication Date |
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| CN114352812A CN114352812A (en) | 2022-04-15 |
| CN114352812B true CN114352812B (en) | 2022-06-28 |
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| CN202210256646.0A Active CN114352812B (en) | 2022-03-16 | 2022-03-16 | High-strength wear-resistant compression-resistant high-frequency straight welded steel pipe |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2552349C3 (en) * | 1975-11-21 | 1978-05-11 | Wavin B.V., Zwolle (Niederlande) | Thermally insulated pipe |
| DE3332149A1 (en) * | 1983-09-06 | 1985-03-21 | Gert Hauset Noel | FOAM INSULATING PIPE OR FOAM INSULATING PLATE MADE OF FLEXIBLE FOAM PLASTIC WITH A SLOT AND SPRING LOCKING SYSTEM ARRANGED IN LONG-AXIS |
| FR2734193B1 (en) * | 1995-05-18 | 1997-07-04 | Valeo Thermique Moteur Sa | PROCESS FOR CLOSING A TUBULAR WALL OF A HEAT EXCHANGER FLUID BOX |
| DE102005044376B4 (en) * | 2005-09-16 | 2008-11-27 | Kwh Automobiltechnik Gmbh | Tube one or two parts with click system |
| DE102012009845A1 (en) * | 2012-05-16 | 2013-11-21 | Zambelli Fertigungs Gmbh & Co. Kg | Straight tube piece for manufacturing gutter drain bend for gutter pipe, has overlapping area bent in fold portion, so that portion of overlapping area is covered by metal sheet material layers in outer and inner sides of hollow cylinder |
| EP2862641B1 (en) * | 2013-10-16 | 2018-07-11 | Nexans | Method for producing metallic composite pipes |
| AT14885U1 (en) * | 2015-07-03 | 2016-08-15 | Plansee Se | Tube with internal coating |
| CN105221855B (en) * | 2015-10-30 | 2017-07-04 | 成都长江热缩材料有限公司 | A kind of improved structure of pyrocondensation pipe |
| CN105276302A (en) * | 2015-10-30 | 2016-01-27 | 成都长江热缩材料有限公司 | Lapped thermal shrinkage round pipe |
| CN110340562A (en) * | 2018-04-03 | 2019-10-18 | 文明菊 | Combined high-intensity welding part |
| CN210633142U (en) * | 2019-09-06 | 2020-05-29 | 常州市联胜封头制造有限公司 | Welding type flat-bottom end socket |
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