CN218582576U - Reinforcing pipe sleeve for bent pipe with pressure - Google Patents

Abstract

The utility model discloses a strengthen pipe box for pressing return bend, including strengthening the pipe box unit, including the pipe box subassembly to and set up in a set of locating component of pipe box subassembly both sides. The beneficial effects of the utility model are that the utility model overcomes there is the wall thickness inequality or has been eroded, corrodes and defects such as the pipe wall attenuate that leads to in the long-time use in the curved system in-process of pipeline itself, can fix a position the pipe sleeve in filling the epoxy adhesive and strengthening the in-process simultaneously, the operation of being convenient for promotes work efficiency.

Description

Reinforcing pipe sleeve for bent pipe with pressure

Technical Field

The utility model relates to a pipeline under pressure reforms transform technical field, especially a strengthen pipe box for pressing return bend.

Background

After the pressure pipeline runs for years, the pipe wall is thinned due to the actions of erosion, corrosion and the like of an internal medium, or the pipe wall is not uniform due to the manufacturing process problem of the bent pipe, the local thickness of the outer arc surface and the side surface of the bent pipe is lower than that of the inner arc surface of the bent pipe, and the thickness of the inner arc surface is larger than that of the outer arc surface and the side surface of the bent pipe. The pipe wall attenuate or uneven, local defect scheduling problem of thickness will cause pipeline under pressure intensity to reduce, forms great potential safety hazard, especially high pressure pipeline, and unpredictable incident may be caused to this type of problem. Therefore, combined with the experience of processing similar defects in the prior art, the following pressurized reinforcing scheme of adding a sleeve outside the pressure pipeline and pouring epoxy resin adhesive into the pressure pipeline is proposed.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above-mentioned problems or the problems occurring in the prior art.

Therefore, the utility model aims at providing a strengthen pipe box for pressing return bend, it can solve the curved system in-process of pipeline itself and have the wall thickness inequality or for a long time use by the erosion and lead to the problem of defect, has solved simultaneously and has filled the problem that the glued agent of epoxy strengthens in-process pipe box location.

In order to solve the technical problem, the utility model provides a following technical scheme: a reinforcing pipe sleeve for a bent pipe with pressure comprises a reinforcing pipe sleeve unit, a pipe sleeve assembly and a group of positioning assemblies, wherein the group of positioning assemblies are arranged on two sides of the pipe sleeve assembly.

As a preferred scheme for pressing enhancement pipe box of return bend is pressed in area, wherein: the pipe sleeve assembly comprises a main pipe sleeve, an auxiliary pipe sleeve arranged on one side of the main pipe sleeve, and a pair of filling openings arranged at the head end and the tail end of the pipe sleeve assembly.

As a preferred scheme of a strengthen pipe box for pressing return bend, wherein: the main pipe sleeve comprises a pair of reinforcing flanges arranged on the inner side and the outer side of the circumference of the main pipe sleeve, a pair of limiting columns arranged at the head end and the tail end of the main pipe sleeve, and a group of positioning holes arranged at the head end and the tail end of the main pipe sleeve in a penetrating way; the limiting column is hollow; the positioning hole points to the circle center.

As a preferred scheme for pressing enhancement pipe box of return bend is pressed in area, wherein: the reinforcing flange comprises a group of bolt holes penetrating through the surface of the reinforcing flange.

As a preferred scheme of a strengthen pipe box for pressing return bend, wherein: the structure of the auxiliary pipe sleeve is consistent with that of the main pipe sleeve; the auxiliary pipe sleeve is symmetrical to the main pipe sleeve in shape.

As a preferred scheme of a strengthen pipe box for pressing return bend, wherein: the pouring port comprises a buckle cap arranged at the top of the pouring port; the filling port is hollow; the pouring opening is clamped with the buckle cap.

As a preferred scheme of a strengthen pipe box for pressing return bend, wherein: the positioning assembly comprises a bracket, a pair of positioning pins arranged at two ends of the bracket and a screw rod penetrating the center of the bracket; the bracket is movably connected with the positioning pin and the screw rod respectively.

As a preferred scheme for pressing enhancement pipe box of return bend is pressed in area, wherein: the support is including setting up in its middle screw hole to and link up set up in a pair of spacing groove at support both ends.

As a preferred scheme for pressing enhancement pipe box of return bend is pressed in area, wherein: the locating pin is including setting up in the location point of its tip to and set up in the stand of the locating pin other end.

As a preferred scheme of a strengthen pipe box for pressing return bend, wherein: the lead screw comprises a matching ring arranged at the bottom of the lead screw.

The utility model has the advantages that: the utility model overcomes there is the wall thickness inequality or is used for a long time in the curved system in-process of pipeline itself and is eroded, corrodes and defect such as pipe wall attenuate that leads to, can fix a position the pipe sleeve at the in-process that is strengthened filling the epoxy adhesive agent simultaneously, is convenient for operate promotion work efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:

FIG. 1 is an overall three-dimensional view of a reinforcing sleeve for a bent tube under pressure.

Fig. 2 is an exploded view of a reinforcing sleeve for a bent pipe with pressure.

FIG. 3 is a block diagram of a sleeve assembly for a reinforced sleeve for a bent tube with pressure.

FIG. 4 is a three-dimensional view of a positioning assembly for a reinforced sleeve for a bent tube with pressure.

Fig. 5 is a partial cross-sectional view of a reinforcing sleeve for a bent pipe under pressure.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other ways of implementing the invention may be devised different from those described herein, and it will be apparent to those skilled in the art that the invention can be practiced without departing from the spirit and scope of the invention.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 5, for the first embodiment of the present invention, this embodiment provides a reinforced pipe sleeve for bending pipe under pressure, which can solve the problem of the defects caused by uneven wall thickness or erosion in long-term use during the bending process of the pipe itself, and also solve the problem of positioning the pipe sleeve during the reinforcing process by pouring epoxy resin adhesive.

Specifically, the reinforcing pipe sleeve unit 100 includes a pipe sleeve assembly 101, and a set of positioning assemblies 102 disposed on both sides of the pipe sleeve assembly 101.

Further, the pipe sleeve assembly 101 includes a main pipe sleeve 101a, a sub pipe sleeve 101b disposed at one side of the main pipe sleeve 101a, and a pair of pouring ports 101c disposed at the head and tail ends of the pipe sleeve assembly 101.

Further, the main pipe sleeve 101a comprises a pair of reinforcing flanges 101a-1 arranged on the inner side and the outer side of the circumference of the main pipe sleeve, a pair of limiting columns 101a-2 arranged at the head end and the tail end of the main pipe sleeve 101a, and a group of positioning holes 101a-3 penetrating the head end and the tail end of the main pipe sleeve 101 a; the limiting column 101a-2 is hollow; the pilot hole 101a-3 points toward the center of the circle.

Further, the reinforcing flange 101a-1 includes a set of bolt holes 101a-11 disposed through a surface thereof.

Further, the structure of the secondary sleeve 101b is consistent with that of the primary sleeve 101 a; the sub pipe housing 101b is symmetrical in shape to the main pipe housing 101 a.

Further, the pouring port 101c includes a button cap 101c-1 disposed at the top thereof; the pouring port 101c is hollow inside; the pouring port 101c is engaged with the locking cap 101 c-1.

Further, the positioning assembly 102 includes a bracket 102a, a pair of positioning pins 102b disposed at two ends of the bracket 102a, and a screw rod 102c disposed through the center of the bracket 102 a; the bracket 102a is movably connected with the positioning pin 102b and the screw rod 102c respectively.

Further, the bracket 102a includes a screw hole 102a-1 provided at the center thereof, and a pair of stopper grooves 102a-2 provided through both ends of the bracket 102 a.

Further, the positioning pin 102b includes a positioning tip 102b-1 provided at an end thereof, and a post 102b-2 provided at the other end of the positioning pin 102 b.

Further, the lead screw 102c includes a mating ring 102c-1 disposed at a bottom thereof.

The reinforcing pipe sleeve unit 100 is used for structural reinforcement of the elbow pipe M, the reinforcing pipe sleeve unit 100 is sleeved on the outer side of the elbow pipe M, the shape of the reinforcing pipe sleeve unit is consistent with that of the elbow pipe M, and when the reinforcing pipe sleeve unit 100 is sleeved on the outer side of the elbow pipe M, a gap is formed between the reinforcing pipe sleeve unit and the elbow pipe M, and the gap can be used for filling epoxy resin.

The reinforcing pipe sleeve unit 100 is integrally divided into two sections, namely a main pipe sleeve 101a and an auxiliary pipe sleeve 101b, which are connected through a pair of bolt holes 101a-11 corresponding to the positions of the reinforcing ribs 101a-1 by bolts, and two ends of the reinforcing pipe sleeve unit 100 are tightly attached to a flange of the bent pipe M. After main pipe sleeve 101a and vice pipe sleeve 101b pass through bolted connection, form the space between with the return bend M, this space can pour into epoxy through pouring into mouth 101c, generally only need use one of two pouring into mouth 101c in the use, pour into the inside cavity of mouth 101c, its inner chamber and space intercommunication, buckle cap 101c-1 can block on pouring into mouth 101c, be used for sealing after epoxy pours the completion, pouring into mouth 101c is the state of sealing under the general condition, its opening height is a little higher than the return bend ring flange, be convenient for epoxy fill the space completely.

Due to the need to avoid the situation of different thickness generated during the epoxy resin pouring process, that is, there is a large difference in the distance between the inner wall of the reinforcing pipe sleeve unit 100 and the outer wall of the elbow pipe M. Therefore, the positioning assembly 102 is required to position and support the reinforcing pipe sleeve unit 100, the screw rod 102c in threaded connection with the bracket 102a is arranged in the middle of the bracket 102a, the two ends of the bracket are provided with a pair of positioning pins 102b in movable connection with the bracket, the tail end of the screw rod 102c is provided with a matching ring 102c-1 which can be arranged in the limiting column 101a-2 and can be matched with the limiting column 101a-2, the limiting column 101a-2 is internally provided with a blind hole, the bottom of the blind hole is provided with an annular groove, the shape of the inner cavity of the limiting column 101a-2 corresponds to the shape of the tail end of the screw rod 102c, and the inner cavity is not communicated with a gap, therefore, the screw rod 102c moves in the limiting column 101a-2 and is limited by the limiting column 101a-2, the number of the positioning pins 102b is two, the upright columns 102b-2 can slide in the limiting groove 102a-2, the positioning pins 102b are required to be inserted into the positioning holes 101a-3, and the positioning tips 102b-1 point to the circle center of the bent pipe M, the outer wall of the bent pipe M can be propped against, four positioning components 102 are arranged at the head end and the tail end of the reinforced pipe sleeve unit 100, the upper end and the lower end of the reinforced pipe sleeve unit 100 are respectively provided with four positioning pins 102b which are eight positioning points, the bent pipe M can be propped against the upper end and the lower end of the bent pipe M uniformly from the periphery, the outer wall of the bent pipe M is consistent with the distance between the reinforced pipe sleeve unit 100, when a screw rod is screwed, the support 102a moves inwards and drives the two positioning pins 102b to be pushed into the reinforced pipe sleeve unit 100, and therefore, only the positioning components 102 need to be adjusted, the main pipe sleeve 101a and the auxiliary pipe sleeve 101b can be directly installed, convenience and rapidness are realized, after the main pipe sleeve 101a and the auxiliary pipe sleeve 101b are installed, the positioning components 102 can play a certain supporting role, and the epoxy resin can be conveniently cured within a period after being poured.

Preferably, this scheme not only can be used for the enhancement of return bend, also can strengthen the straight tube in the same way.

Preferably, in the positioning process, the positioning hole 101a-3 may have threads, and screws are used to be in threaded connection with the positioning hole 101a-3, and the screws are screwed to enhance the positioning of the pipe sleeve unit 100, so that 8 screws are required to be respectively positioned, which is simpler in implementation process and lower in cost compared with the positioning assembly 102, but the positioning process is more complicated and the positioning accuracy is slightly lower.

When the device is used, when the bent pipe M is reinforced, the molded line mapping of the on-site bent pipe M is needed, the size of the sleeve is determined by taking the existing bent pipe M as a basis, and if the lengths of the two ends of the 90-degree bent pipe M are not enough according to actual measurement, stainless steel seamless steel pipes with the same thickness are taken as extension joints; the reinforcing pipe sleeve unit 100 is closely attached to the flange of the joint pipe at both ends thereof, if the flange end is not closely attached due to the bolt head, to shorten the size of the extension joint, and to add an annular baffle at the end of the extension joint.

The reinforcing pipe sleeve unit 100 is made of a seamless stainless steel bent pipe M in a split structure, the non-fit part of the joint is locally processed until the part is suitable, the four positioning assemblies 102 are respectively adjusted to enable the eight positioning pins 102b to just prop against the outer wall of the bent pipe M, and then the pipe sleeve assembly 101 is fixed by a plurality of bolts.

Epoxy resin is poured into the reinforcing pipe sleeve unit 100 for curing and sealing, 3kg of phoenix brand epoxy resin, 3kg of 650-type low-molecular polyamide resin (curing agent) and 6kg of silicon dioxide (quartz powder) need to be prepared in advance, epoxy resin fillers are prepared according to the curing proportion of the epoxy resin, the polyamide resin and the quartz powder of about 1; proper epoxy resin adhesive is injected into the butt joint reinforcing pipe sleeve unit 100; in order to ensure that the interlayer is filled with the epoxy resin adhesive, the filling amount is slightly larger than the volume of the interlayer, and the gap between the two ends and the joint are checked to be filled with the compacted epoxy resin filler, so that the epoxy resin filler is completely bonded with the two ends of the connecting pipe.

In the scheme, the joint of the inner wall of the reinforced pipe sleeve unit 100, the outer wall of the connecting pipe and the flange is bonded into an integral structure through stronger chemical adhesive force of epoxy resin, so that the sealing performance is good, and the compressive strength (1100-1300 kg/cm) is stronger after epoxy curing ² =108 MN/ m ² ) The reinforced stainless steel elbow pipe M has a strong supporting effect on the inner and outer stainless steel elbow pipes M, the integral pressure bearing grade of the reinforced elbow pipe M is improved by multiple times, and the margin is enough; the thinned part on the connecting pipe is completely reinforced by the epoxy and the full coverage of the internal connecting pipe and the bonding of the epoxy and the flange, and the stainless steel has stronger erosion and abrasion resistance, so that the reinforced bent pipe M has a reliable structure, the strength of the bent pipe M is far higher than that of the original connecting pipe, and the requirement of long-term use can be met.

In conclusion, the scheme overcomes the defects of pipe wall thinning and the like caused by uneven wall thickness or erosion and corrosion in long-time use in the bending process of the pipeline, the pressure pipeline formed by the sleeve and the epoxy resin cementing agent after being poured can meet the requirement of high-grade pressure on the pipeline strength, the pressurized reinforcement of the defective pipeline is realized, and meanwhile, the sleeve can be positioned in the reinforcement process of pouring the epoxy resin cementing agent, so that the construction operation feasibility and the working efficiency are facilitated to be improved.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. A strengthen pipe box for pressing return bend, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a reinforcing shroud unit (100) includes a shroud assembly (101), and a set of positioning assemblies (102) disposed on both sides of the shroud assembly (101).

2. A reinforcing sleeve for a bent pipe with pressure according to claim 1, characterized in that:

the pipe sleeve assembly (101) comprises a main pipe sleeve (101 a), an auxiliary pipe sleeve (101 b) arranged on one side of the main pipe sleeve (101 a), and a pair of pouring ports (101 c) arranged at the head end and the tail end of the pipe sleeve assembly (101).

3. A reinforcing sleeve for a bent pipe with pressure according to claim 2, characterized in that:

the main pipe sleeve (101 a) comprises a pair of reinforcing flanges (101 a-1) arranged on the inner side and the outer side of the circumference of the main pipe sleeve, a pair of limiting columns (101 a-2) arranged at the head end and the tail end of the main pipe sleeve (101 a), and a group of positioning holes (101 a-3) arranged at the head end and the tail end of the main pipe sleeve (101 a) in a penetrating manner; the limiting column (101 a-2) is hollow inside; the positioning hole (101 a-3) points to the circle center.

4. A reinforcing sleeve for a bent pipe with pressure according to claim 3, characterized in that:

the reinforcing flange (101 a-1) includes a set of bolt holes (101 a-11) disposed through a surface thereof.

5. A reinforcing sleeve for a bent pipe with pressure according to claim 4, characterized in that:

the secondary pipe sleeve (101 b) is consistent with the main pipe sleeve (101 a) in structure; the secondary socket (101 b) is symmetrical in shape to the primary socket (101 a).

6. A reinforcing sleeve for a bent pipe with pressure according to claim 5, characterized in that:

the pouring opening (101 c) comprises a buckle cap (101 c-1) arranged at the top of the pouring opening; the pouring opening (101 c) is hollow inside; the pouring opening (101 c) is clamped with the buckle cap (101 c-1).

7. A reinforcing pipe sleeve for an elbow with pressure as claimed in any one of claims 1 to 6, characterized in that:

the positioning assembly (102) comprises a bracket (102 a), a pair of positioning pins (102 b) arranged at two ends of the bracket (102 a), and a screw rod (102 c) penetrating through the center of the bracket (102 a); the bracket (102 a) is movably connected with the positioning pin (102 b) and the screw rod (102 c) respectively.

8. A reinforcing sleeve for a bent pipe with pressure according to claim 7, characterized in that:

the bracket (102 a) comprises a threaded hole (102 a-1) arranged in the middle of the bracket and a pair of limiting grooves (102 a-2) arranged at two ends of the bracket (102 a) in a penetrating way.

9. A reinforcing sleeve for a bent pipe with pressure according to claim 8, characterized in that:

the positioning pin (102 b) comprises a positioning tip (102 b-1) arranged at one end part thereof and a column (102 b-2) arranged at the other end part of the positioning pin (102 b).

10. A reinforcing sleeve for a bent pipe with pressure according to claim 8 or 9, characterized in that:

the lead screw (102 c) includes a mating ring (102 c-1) disposed at a bottom thereof.

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