Heat supply pipeline repairing device for heat supply engineering

Abstract

The utility model discloses a heat supply pipeline repairing device for heat supply engineering, which relates to the technical field of pipeline repairing, and comprises a cladding pipe formed by oppositely enclosing a pair of semicircular sleeves, and an extrusion pad arranged along the circumferential inner wall of the sleeves and provided with an arc-shaped bulge arranged at the axial center position of the extrusion pad, a pair of infolded bulges obliquely arranged at the edges of the two sides of the extrusion pad, and a pair of arc-shaped bulges arranged at the axial center position of the extrusion pad. The inclined directions of the two convex parts face the axial center of the infolding bulge; the device has the beneficial effects that when the leakage point of the heat supply pipeline is repaired, the device can promote the repairing pad to apply laterally concentrated extrusion force to the leakage point from the two sides of the leakage point through the mutual matching of the extrusion pad in the sleeve and the stress part on the repairing pad, and the unique stress mode can effectively overcome interference caused by the uneven surface of the pipeline; and the attaching tightness degree of the repairing pad and the outer wall of the heat supply pipeline is remarkably improved, so that the sealing effect is greatly enhanced, the heating medium leakage risk is reduced, and the overall repairing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline repair technical field especially relates to a heat supply pipeline repair device for heat supply engineering. BACKGROUND

[0002] In heat supply engineering, heat supply pipeline is prone to damage, leakage and other problems due to long-term operation in high temperature and high pressure environment, and needs to be repaired in time.

[0003] The heat supply pipeline repair device for heat supply engineering provided in authorization announcement No. CN 216976232 U relates to the technical field of pipeline repair devices and comprises a first pipe sleeve, a first connecting block is fixedly installed on the periphery of the first pipe sleeve, and two first connecting blocks are symmetrically arranged. The device can repair the heat supply pipeline by using the combination of the sleeve and the rubber pad. However, after the crack position of the heat supply pipeline is repaired and welded, the surface has certain concave-convex and irregularities, so that the rubber pad is difficult to completely fit the complex shape of the pipeline surface when it is in contact with the heat supply pipeline, resulting in an unsatisfactory wrapping effect. This makes it easy for gaps to exist between the rubber pad and the heat supply pipeline, and the sealing is not strict. During the operation of the heat supply pipeline, the high-temperature and high-pressure heat medium is easy to leak from the gaps, which not only reduces the heat supply efficiency but also may cause safety hazards. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems of the above-mentioned heat supply pipeline repair device for heat supply engineering, the present utility model is proposed.

[0006] To solve the above technical problems, the present utility model provides the following technical scheme: a heat supply pipeline repair device for heat supply engineering, comprising a cladding pipe formed by a pair of semicircular sleeve pipes facing each other;

[0007] An extrusion pad is arranged along the circumferential inner wall of the sleeve pipe:

[0008] An arc-shaped protrusion is arranged at the axial center position of the extrusion pad;

[0009] A pair of inwardly folded protrusions are each arranged at the two side edges of the extrusion pad and inclined toward the axial center of the inwardly folded protrusion;

[0010] A pair of repair pads are each arranged along the length of the corresponding sleeve pipe and used for attaching the heat supply pipeline;

[0011] The stress part is arranged along the circumferential outer wall of the repair pad, and each of two side parts and the outer surface of the repair pad forms a step surface;

[0012] When the cladding pipe surrounds the heat supply pipeline, the arc-shaped protrusion extrudes the stress part to press the middle part of the repair pad to the leakage point of the pipeline, and the inner folding protrusion extrudes the step surface to generate a radial adhesion force of the two sides of the repair pad towards the leakage point.

[0013] As a preferred scheme of the heat supply pipeline repair device for heat supply engineering, the thickness of the repair pad gradually decreases from the middle part to the two sides.

[0014] As a preferred scheme of the heat supply pipeline repair device for heat supply engineering, the included angle between the inner folding protrusion and the inner wall of the extrusion pad is 40-60°.

[0015] As a preferred scheme of the heat supply pipeline repair device for heat supply engineering, the inner wall of the sleeve is symmetrically provided with a pair of pressing strips, and the pressing strips are respectively located on the two sides of the extrusion pad, and the pressing strips are attached to the outer wall of the repair pad.

[0016] As a preferred scheme of the heat supply pipeline repair device for heat supply engineering, the two ends of the repair pad are provided with attachment protrusions, and at least one limiting groove is formed in the attachment protrusions along the circumferential direction, and the inner wall of the sleeve is fixed with a positioning protrusion, and when the positioning protrusion is inserted into the limiting groove, the relative position of the sleeve and the repair pad is locked.

[0017] As a preferred scheme of the heat supply pipeline repair device for heat supply engineering, the two sides of the sleeve are provided with ear plates, and two recesses are symmetrically formed in the ear plates, and a pair of side plates are fixed on the two sides of the repair pad, and each side plate extends into the corresponding recess and fastens the ear plate and the side plate through bolts.

[0018] The heat supply pipeline repair device for heat supply engineering has the following advantages: when the repair device is used to repair the leakage point of the heat supply pipeline, the extrusion pad in the sleeve and the stress part on the repair pad cooperate with each other to apply lateral concentrated extrusion force to the repair pad from the two sides of the leakage point. This unique stress mode can effectively overcome the interference caused by the uneven surface of the pipeline, significantly improve the attachment tightness of the repair pad and the outer wall of the heat supply pipeline, greatly enhance the sealing effect, reduce the risk of heat medium leakage, and improve the overall repair effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise that they do not deviate from the connotation of the present application. Among them:

[0020] Figure 1 It is a structural schematic diagram of the present application.

[0021] Figure 2 It is a sectional view of the present application.

[0022] Figure 3 It is an explosion diagram of the present application.

[0023] Figure 4 It is a structural schematic diagram of the sleeve in the present application.

[0024] Figure 5 It is a structural schematic diagram of the repair pad in the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS: 1, sleeve; 11, extrusion pad; 111, arc-shaped protrusion; 112, inner folding protrusion; 12, pressing strip; 13, positioning protrusion; 2, repair pad; 21, stress part; 211, step surface; 22, fitting protrusion; 221, limiting groove; 23, side plate. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0027] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0028] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0029] Thirdly, the utility model is described in detail in combination with the schematic diagram, in the detailed description of the utility model embodiment, for the convenience of illustration, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0030] Referring to Figures 1-5 For an embodiment of the utility model, a heat supply pipeline repairing device for heat supply engineering is provided, which comprises a cladding pipe formed by a pair of semicircular sleeves 1 facing each other, which is convenient for quick installation outside the heat supply pipeline. The split sleeve 1 can easily sleeve the cladding pipe at the pipeline position needing repair without disassembling or moving a large number of pipelines, greatly improving the convenience and flexibility of installation, reducing the construction difficulty and time cost.

[0031] The extrusion pad 11 is arranged along the circumferential inner wall of the sleeve 1, which has an arc-shaped protrusion 111 arranged at the axial center of the extrusion pad 11.

[0032] A pair of inwardly folded protrusions 112 are arranged on both sides of the extrusion pad 11, and the inclination direction of each inwardly folded protrusion 112 is towards the axial center of the inwardly folded protrusion 112. The included angle between the inwardly folded protrusion 112 and the inner wall of the extrusion pad 11 is 40-60°. Such an angle design enables the inwardly folded protrusion 112 to generate a force in a specific direction when extruding the stepped surface 211.

[0033] A pair of repairing pads 2 are arranged along the length of the corresponding sleeve 1. The thickness of the repairing pad 2 gradually decreases from the middle to both sides. When the repairing pad 2 is attached to the heat supply pipeline, the thicker part in the middle can provide sufficient material to cope with the pressure and medium impact at the pipeline leakage point, ensuring good plugging effect at the leakage point position. The gradually thinning design on both sides enables the repairing pad 2 to better adapt to the arc surface of the pipeline, reduce the gap between the pipeline and the pipeline, and improve the adhesion.

[0034] The stress receiving part 21 is arranged along the circumferential outer wall of the repairing pad 2, and a stepped surface 211 is formed between the two sides of the stress receiving part 21 and the outer surface of the repairing pad 2. The stress receiving part 21 can effectively receive the extrusion force of the arc-shaped protrusion 111 and transmit the force to the middle of the repairing pad 2 to realize the compression of the leakage point. The stepped surface 211 provides a force point for the inwardly folded protrusion 112. Through the extrusion of the inwardly folded protrusion 112 on the stepped surface 211, a force is generated to make the two sides of the repairing pad 2 adhere to the leakage point. The two work together to ensure that the repairing pad 2 can be closely attached to the pipeline leakage point and the surrounding area, achieving good repairing effect.

[0035] The inner wall of the sleeve 1 is symmetrically provided with a pair of pressing strips 12, and the pressing strips 12 are respectively located on both sides of the extrusion pad 11, the pressing strips 12 are attached to the outer wall of the repair pad 2, and the main function of the pressing strips 12 is to further fix and limit the repair pad 2 after the installation of the cladding pipe.

[0036] The two ends of the repair pad 2 are provided with attachment protrusions 22, at least one limiting groove 221 is formed in the attachment protrusions 22 in the circumferential direction, the inner wall of the sleeve 1 is fixedly provided with a positioning protrusion 13, and when the positioning protrusion 13 is inserted into the limiting groove 221, the relative position of the sleeve 1 and the repair pad 2 is locked.

[0037] The two sides of the sleeve 1 are provided with ear plates, two recesses are symmetrically formed in the ear plates, a pair of side plates 23 are fixed to the two sides of the repair pad 2, and each side plate 23 extends into the corresponding recess, and the ear plate and the side plate 23 are fastened by bolts, the cladding pipe and the repair pad 2 are firmly connected together by the fastening of the bolts to form an integral whole, and the integral whole jointly bears the internal pressure of the pipeline and the influence of external environmental factors.

[0038] When the cladding pipe surrounds the heat supply pipeline, the arc-shaped protrusion 111 can extrude the stress part 21. Since the arc-shaped protrusion 111 is located at the center position, uniform and concentrated pressure can be applied to the middle part of the repair pad 2, so that the middle part of the repair pad 2 can be tightly pressed against the pipeline leakage point, the leakage of the medium is effectively prevented, a first sealing line is formed, and the sealing performance and reliability of the repair are improved; in addition, when the inner folding protrusion 112 extrudes the stepped surface 211, a force in a specific direction can be generated, the force can make the two sides of the repair pad 2 generate a radial adhesion force towards the leakage point, and the adhesion degree of the repair pad 2 to the surface of the pipeline is further enhanced, especially in the concave-convex area around the pipeline leakage point, the leakage of the medium is effectively prevented, and the repair effect is further improved.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A heating pipe repairing device for heating engineering, characterized by, The utility model relates to a heat supply pipeline repair device, including: A pair of half-round sleeves (1) are oppositely enclosed to form a cladding pipe; An extrusion pad (11) is arranged along the circumferential inner wall of the sleeve (1); An arc-shaped protrusion (111) is arranged at the axial center of the extrusion pad (11); A pair of inwardly folded protrusions (112) are each arranged at the two side edges of the extrusion pad (11) and are inclined towards the axial center of the inwardly folded protrusions (112); A pair of repair pads (2) are each arranged along the length of the corresponding sleeve (1) and are used for attaching to a heat supply pipeline; A stress receiving part (21) is arranged along the circumferential outer wall of the repair pad (2), and a step surface (211) is formed between the two side parts of the stress receiving part (21) and the outer surface of the repair pad (2); When the cladding pipe is enclosed to the heat supply pipeline, the arc-shaped protrusion (111) extrudes the stress receiving part (21) to press the middle part of the repair pad (2) against the leakage point of the pipeline, and the inwardly folded protrusions (112) extrude the step surface (211) to generate radial attachment force towards the leakage point on the two sides of the repair pad (2).

2. A heating pipe repairing device for heating engineering according to claim 1, characterized in that: The thickness of the repair pad (2) gradually decreases from the middle part to the two sides.

3. A heating pipe repairing device for heating engineering according to claim 2, characterized in that: The included angle between the inwardly folded protrusions (112) and the inner wall of the extrusion pad (11) is 40-60 degrees.

4. The heating pipe repairing device for heating engineering according to claim 1, characterized in that: A pair of pressing strips (12) are symmetrically arranged on the inner wall of the sleeve (1), and the pressing strips (12) are respectively located on the two sides of the extrusion pad (11) and are in contact with the outer wall of the repair pad (2).

5. The heating pipe repairing device for heating engineering according to claim 1, characterized in that: A fitting protrusion (22) is arranged at each end of the repair pad (2), at least one limiting groove (221) is formed in the circumferential direction of the fitting protrusion (22), a positioning protrusion (13) is fixed on the inner wall of the sleeve (1), and when the positioning protrusion (13) is inserted into the limiting groove (221), the relative position of the sleeve (1) and the repair pad (2) is locked.

6. A heating pipe repairing device for heating engineering according to claim 5, characterized in that: An ear plate is arranged on each side of the sleeve (1), two recesses are symmetrically formed in the ear plate, a pair of side plates (23) are fixed on the two sides of the repair pad (2) and each extend into the corresponding recess, and the ear plate and the side plates (23) are fastened by bolts.

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