1. The utility model provides a structure is restoreed fast to pipeline seepage, includes support steel ring (1) and sets up rubber seal (2) at support steel ring (1) inner ring surface, its characterized in that:

the supporting steel ring (1) is formed by assembling a plurality of arc steel plates (11);

the rubber sealing ring (2) is of a natural rubber ring support structure, the back of the ring is provided with a plurality of water stop strips (21), and the ring is internally provided with a plurality of tensioning ring fixing grooves (22) which are uniformly distributed along the axial direction; and a tension ring (3) is arranged in the tension ring fixing groove (22).

2. The rapid pipeline leak repairing structure according to claim 1, wherein: the edge of the arc steel plate (11) is provided with an L-shaped clamping edge (111), and every two arc steel plates (11) are mutually clamped through the L-shaped clamping edges (111).

3. The rapid pipeline leak repairing structure according to claim 1, wherein: the tensioning ring (3) consists of a plurality of sections of tensioning arcs (31), tensioning guide wedges (32) are arranged at two ends of each section of tensioning arc (31), and the tensioning guide wedges (32) are welded with the tensioning arcs (31) in a spot welding manner; and a tensioning wedge block (33) screwed by an inner hexagon bolt is arranged between two tensioning guide wedge blocks (32) which are connected end to end of each two sections of tensioning arcs (31).

4. The rapid pipeline leak repairing structure according to claim 1, wherein: the outer ring surface of the supporting steel ring (1) is sleeved with a rubber ring or a rubber strip.

5. The rapid pipeline leak repairing structure according to claim 3, wherein: the tensioning arc (31) is formed by a U-shaped steel belt type arc.

6. The rapid pipeline leak repairing structure according to claim 3, wherein: arc supporting steel plates (34) are welded on the outer sides of the tensioning guide wedges (32) at the ends of each tensioning arc (31) in a spot mode.

7. A method for rapidly repairing a pipe leakage by applying the rapid pipe leakage repairing structure of claim 5:

the method comprises the following steps: the leakage position of the pipeline is blocked by quick-setting blocking mortar;

step two: coating waterproof sealant at the plugging part to enable the surface of the pipeline to be smooth and have no protrusion;

step three: installing a supporting steel ring (1) with the outer ring surface sleeved with a rubber ring at a pipeline leakage position in a clearance fit manner, and then arranging a rubber sealing ring (2) provided with a tensioning ring (3) on the inner ring surface of the supporting steel ring (1);

step four: the tensioning ring (3) is tensioned by rotating the inner hexagon bolts, and a circulating screwing mode is adopted in the process of rotating the inner hexagon bolts, namely, the pretightening force of each inner hexagon bolt is ensured to be the same; the position of the tensioning guide wedge block (32) should avoid a leakage position;

step five: carrying out a water filling test, and if water leaks from a leakage position, replacing the rubber ring on the surface of the outer ring of the supporting steel ring (1) for secondary repair; and if no leakage exists, the repair is finished.

Background

The pipeline leakage is a common abnormal phenomenon in the industries of water conservancy, petroleum, chemical industry and the like, the production and the life are seriously affected by the pipeline leakage, and if the leakage is not repaired in time, the loss caused by the leakage can be aggravated.

In order to solve the problem of pipeline leakage, the technology of curing lining repair is developed and is adopted by various industries gradually. In the prior art, for example, the Chinese patent (application number: 202010351711.9) discloses a construction method for repairing the joint of a non-excavation stainless steel expansion ring of an underground sewage pipeline, which repairs a leakage point through the steps of sewage regulation, crack roughening, high-pressure grouting, sealant plastering, rubber plate installation, stainless steel expansion ring expansion and water filling test. The repairing method is a conventional technical means, the expansion process of the expansion ring is not considered, the expansion condition influences the joint stress condition of the rubber plate and the pipeline, and the repairing result is directly influenced. Therefore, the repair method disclosed by the invention cannot bring a good repair effect, and in the construction process, repair and adjustment are often required for many times, so that time and labor are wasted.

To pipeline seepage repair structure, prior art includes that chinese utility model patent ZL202020562789.0 discloses a non-excavation pipeline is restoreed and is used interior bushing pipe, realizes carrying out the shutoff to the water leakage point through setting up the water swelling layer, and when having not full stream to discharge because of the water yield in the pipeline, the water swelling layer can have the local water swelling condition of not meeting, uses for a long time, can make the water swelling layer warp, has seepage risk once more.

The prior art also discloses a pipeline repairing structure including a Chinese utility model patent ZL201820510163.8, which adopts a mode of matching an expansion plate and an inner expanding ring to realize expansion. And this kind of mode can not fine control the expanding force for the rubber seal groove atress is uneven, damages easily and has the seepage risk again.

Therefore, a quick repair structure for pipeline leakage, which is convenient to operate and simple in structure, and a repair method which is reasonable in mechanics and good in repair effect are needed in the field.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a quick repair structure and a repair method for pipeline leakage, which are convenient to operate, simple in structure, uniform in stress on the inner wall of a pipeline and good in repair effect.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a rapid pipeline leakage repairing structure comprises a supporting steel ring and a rubber sealing ring arranged on the surface of an inner ring of the supporting steel ring; the support steel ring is formed by assembling a plurality of arc steel plates; the rubber sealing ring is of a natural rubber circular ring support structure, the back of the circular ring is provided with a plurality of water stop strips, and a plurality of tensioning ring fixing grooves which are uniformly distributed along the axial direction are arranged in the circular ring; and a tension ring is arranged in the tension ring fixing groove.

Preferably, the edge of the arc steel plate is provided with an L-shaped clamping edge, and every two arc steel plates are mutually clamped through the L-shaped clamping edges.

Preferably, the tensioning ring consists of a plurality of tensioning arcs, tensioning guide wedges are arranged at two ends of each tensioning arc, and the tensioning guide wedges are welded with the tensioning arcs in a spot welding manner; and a tensioning wedge block screwed by an inner hexagon bolt is arranged between two tight guide wedge blocks which are connected end to end in each two sections of tensioning arcs.

Preferably, the surface of the outer ring of the support steel ring is sleeved with a rubber ring or a rubber strip.

Preferably, the tensioning arc is formed by a U-shaped steel strip arc.

Preferably, the outer side of each tensioning arc end tensioning guide wedge is welded with an arc supporting steel plate in a spot mode.

A pipeline leakage rapid repair method applying the pipeline leakage rapid repair structure comprises the following steps:

the method comprises the following steps: the leakage position of the pipeline is blocked by quick-setting blocking mortar;

step two: coating waterproof sealant at the plugging part to enable the surface of the pipeline to be smooth and have no protrusion;

step three: installing a supporting steel ring, the surface of which is sleeved with a rubber ring, at a leakage position of a pipeline in a clearance fit manner, and then arranging a rubber sealing ring provided with a tensioning ring on the surface of an inner ring of the supporting steel ring;

step four: the inner hexagon bolts are rotated to be tensioned, and a circulating screwing mode is adopted in the process of rotating the inner hexagon bolts, namely, the pretightening force of each inner hexagon bolt is ensured to be the same; the position of the tensioning guide wedge block is required to avoid a leakage position;

step five: carrying out a water filling test, and if water leaks from a leakage position, replacing the rubber ring on the surface of the outer ring of the support steel ring to carry out secondary repair; and if no leakage exists, the repair is finished.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the L-shaped clamping edge is arranged at the edge of the arc steel plate, so that the construction of a supporting steel ring is facilitated, and the field assembly and fixation are facilitated;

according to the invention, the tensioning wedge blocks are arranged and screwed by the inner hexagon bolts, the two tight guide wedge blocks are gradually far away by rotating the inner hexagon bolts, the tensioning rings are gradually tensioned, and the operation is simple; the pretightening force of each inner hexagon bolt is ensured to be the same through a circulating screwing mode, so that the tensioning force of the tensioning ring is the same, the rubber sealing ring is stressed uniformly without leakage points, and the service life is greatly prolonged;

according to the invention, the arc supporting steel plate is welded on the outer side of the tensioning guide wedge block, so that the arc tensioning force is conveniently and uniformly transmitted to the rubber sealing ring, and the abrasion to the rubber sealing ring is reduced.

Drawings

FIG. 1 is a schematic structural view of the rapid repair structure for pipe leakage;

FIG. 2 is a schematic structural view of an L-shaped clamping edge on the arc steel plate;

FIG. 3 is a schematic structural diagram of the arc steel plate;

FIG. 4 is a schematic structural view of the rubber sealing ring;

FIG. 5 is a schematic view of the tension ring structure;

FIG. 6 is a schematic view of the connection between the tensioning arc and the tensioning guide wedge;

FIG. 7 is a schematic view of the connection relationship between the tension guide wedge and the tension wedge;

FIG. 8 is a schematic structural view of the arc-shaped supporting steel plate;

FIG. 9 is a schematic view of the tension guide wedge structure;

FIG. 10 is a schematic view of the tensioning wedge block configuration;

fig. 11 is a schematic view of the tensioning arc structure.

The device comprises a support steel ring 1, a rubber sealing ring 2, a tensioning ring 3, an arc steel plate 11, a 111-L-shaped clamping edge 21, a water stop strip 22, a tensioning ring fixing groove 31, a tensioning arc 32, a tensioning guide wedge 33, and an arc support steel plate 34.

Detailed Description

The preferred embodiments of the present invention are provided in the following description with reference to the accompanying drawings, which are only preferred embodiments of the present invention, and certainly do not limit the scope of the invention.

Referring to fig. 1-3, a rapid pipeline leakage repairing structure includes a supporting steel ring 1 and a rubber seal ring 2 disposed on the inner ring surface of the supporting steel ring 1; the outer ring surface of the supporting steel ring 1 is also sleeved with a rubber ring; the support steel ring 1 is formed by assembling arc steel plates 11; the edges of the circular arc steel plates 11 are provided with L-shaped clamping edges 111, every two circular arc steel plates 11 are mutually clamped through the L-shaped clamping edges 111, and the L-shaped clamping edges 111 are beneficial to building of a support steel ring and convenient to assemble and fix on site;

referring to fig. 4, the rubber sealing ring 2 is a natural rubber circular ring support structure, the back of the circular ring is provided with a plurality of water stop strips 21, and two tensioning ring fixing grooves 22 which are uniformly arranged along the axial direction are arranged in the circular ring; a tension ring 3 is arranged in the tension ring fixing groove 22;

referring to fig. 5-7, 9 and 10, the tensioning ring 3 is composed of tensioning arcs 31, two ends of each tensioning arc 31 are respectively provided with a tensioning guide wedge 32, and the tensioning guide wedges 32 and the tensioning arcs 31 are welded in a spot welding manner; a tensioning wedge 33 screwed by an inner hexagon bolt is arranged between two tight guide wedges 32 connected end to end of each two sections of tensioning arcs 31; the pretightening force of each inner hexagon bolt is ensured to be the same through a circulating screwing mode, so that the tensioning force of the tensioning ring is the same, the rubber sealing ring is stressed uniformly without leakage points, and the service life is greatly prolonged;

referring to fig. 11, the tensioning arc 31 is formed by a U-shaped steel strip profile arc;

referring to fig. 3 and 8, arc support steel plates 34 are spot-welded on the outer sides of tensioning guide wedges 32 at the ends of each tensioning arc 31, so that arc tensioning force is uniformly transmitted to the rubber sealing rings, and abrasion to the rubber sealing rings is reduced.

Example 1

In a certain urban sewage treatment plant, sewage pipelines are 3726 m in diameter of 1.2-2.4 m, most of the sewage pipelines are old pipelines, the construction time span is long, and the pipes are provided with reinforced concrete prefabricated pipes, socket-and-spigot prestressed prefabricated pipes and cast-in-place box culverts. Along with long-term use, the rendering coat concrete cures and shrinks to generate cracks, and the water leakage phenomenon appears. Therefore, a pipeline leakage repair work is required.

The quick pipeline leakage repairing structure is applied to sewage pipeline leakage repairing engineering of a certain municipal sewage treatment plant, and the quick pipeline leakage repairing method comprises the following steps:

the method comprises the following steps: the leakage position of the pipeline is blocked by quick-setting blocking mortar; the quick-setting plugging mortar is a quick repairing material which takes quick-hardening concrete as a cementing material and is matched with a composite additive, polypropylene fibers and special aggregate; the quick-setting plugging mortar is formed by doping a quick-setting agent into concrete, wherein the quick-setting agent is a red star I type;

step two: coating waterproof sealant at the plugging part to enable the surface of the pipeline to be smooth and have no protrusion; and paving an SCLW35251 anticorrosion and anti-seepage film on the surface;

step three: all parts of the rapid pipeline leakage repairing structure are brought into a pipeline, three arc steel plates 11 are assembled into a supporting steel ring 1 in the leakage position of the pipeline, and a rubber ring is sleeved on the outer surface of the supporting steel ring 1; at the moment, the supporting steel ring 1 is arranged at the leakage position of the pipeline in a clearance fit manner; assembling three sections of tensioning arcs 31, tight guide wedges 32 and tensioning wedges 33 into a tensioning ring 3, wherein the tensioning ring 3 is arranged in the rubber sealing ring 2 and arranged on the surface of the inner ring of the support steel ring 1;

step four: the inner hexagon bolts are rotated to be tensioned, and a circulating screwing mode is adopted in the process of rotating the inner hexagon bolts, namely, the pretightening force of each inner hexagon bolt is ensured to be the same; and the position of the tensioning guide wedge block 32 should avoid the leakage position; the installation of the rapid pipeline leakage repairing structure is completed;

step five: and (4) performing an irrigation test, closing the gates at the two ends of the section of the pipeline, irrigating, statically soaking for 72 hours, performing the test according to the national standard GB50268/2008, and completing the repair without liquid level reduction and leakage.

By the rapid pipeline leakage repairing structure and the rapid pipeline leakage repairing method, the time for repairing the leakage point is short, the repairing and the installation are convenient, the leakage point can be quickly recovered and used, and the repairing effect is far higher than that of the original repairing technology.

Example 2

The service life of a municipal road drainage pipeline in an old urban area of a certain city exceeds 20 years (the service life of reinforced concrete and the service life of corrugated pipes are 25 years according to design specifications), the drainage pipeline is mostly a reinforced concrete pipeline (plain end type), the construction life is long, the construction standard is low, long-term scouring causes the phenomena that the drainage pipeline has connector dislocation, uneven pipeline settlement, structural damage of a well chamber of an inspection well and the like, and the potential safety hazard is very large. Pipeline leakage accident happens occasionally, adopts prior art shutoff, all does not reach good effect.

Therefore, the rapid pipeline leakage repairing structure provided by the invention is applied to the municipal road drainage pipeline seepage repairing, and the repairing process is as follows:

the method comprises the following steps: the leakage position of the pipeline is blocked by quick-setting blocking mortar; the quick-setting plugging mortar is a quick repairing material which takes quick-hardening concrete as a cementing material and is matched with a composite additive, polypropylene fibers and special aggregate; the quick-setting plugging mortar is formed by doping a quick-setting agent into concrete, wherein the quick-setting agent is a red star I type;

step two: coating waterproof sealant at the plugging part to enable the surface of the pipeline to be smooth and have no protrusion; and paving an SCLW35251 anticorrosion and anti-seepage film on the surface;

step three: all parts of the rapid pipeline leakage repairing structure are brought into a pipeline, three arc steel plates 11 are assembled into a supporting steel ring 1 in the leakage position of the pipeline, and a rubber strip is sleeved on the outer surface of the supporting steel ring 1; at the moment, the supporting steel ring 1 is arranged at the leakage position of the pipeline in a clearance fit manner; assembling three sections of tensioning arcs 31, tight guide wedges 32 and tensioning wedges 33 into a tensioning ring 3, wherein the tensioning ring 3 is arranged in the rubber sealing ring 2 and arranged on the surface of the inner ring of the support steel ring 1;

step four: the inner hexagon bolts are rotated to be tensioned, and a circulating screwing mode is adopted in the process of rotating the inner hexagon bolts, namely, the pretightening force of each inner hexagon bolt is ensured to be the same; and the position of the tensioning guide wedge block 32 should avoid the leakage position; the installation of the rapid pipeline leakage repairing structure is completed;

step five: and (4) performing an irrigation test, closing the gates at the two ends of the section of the pipeline, irrigating, statically soaking for 72 hours, performing the test according to the national standard GB50268/2008, and completing the repair without liquid level reduction and leakage.

By the rapid pipeline leakage repairing structure and the rapid pipeline leakage repairing method, the time for repairing the leakage point is short, and the repairing effect is good.

Although particular implementations of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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.