CN213361510U

CN213361510U - Inner piston ring structure for pipeline repair

Info

Publication number: CN213361510U
Application number: CN202021741167.0U
Authority: CN
Inventors: 杨燮琦; 夏建化
Original assignee: Wuxi Guandao Power Equipment Co ltd
Current assignee: Wuxi Guandao Power Equipment Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-06-04
Anticipated expiration: 2030-08-19

Abstract

The utility model relates to a pipeline repair technical field, concretely relates to internal expanding ring structure is restoreed to pipeline aims at that the speed of construction is slow, with high costs, influenced by environmental factor because of the damaged needs of pipeline change among the prior art, the problem of popularization not convenient for, and its technical essential lies in including covering in the stagnant water sealing layer of pipeline restoration portion, one side of the relative pipeline restoration portion of stagnant water sealing layer is equipped with the annular caulking groove, be equipped with the internal expanding ring subassembly that matches with it in the annular caulking groove, the internal expanding ring subassembly compresses tightly the stagnant water sealing layer after adjusting, makes it hug closely pipeline restoration portion and realizes sealed effect. The utility model discloses need not punch etc. on waiting to restore the pipeline and have the operation of impacteability, can not cause further structural damage to the pipeline and can accomplish repair to leak the benefit soon in realizing, have the advantage that repair efficiency is high, repair effect is good.

Description

Inner piston ring structure for pipeline repair

Technical Field

The utility model relates to a pipeline repair technical field, concretely relates to pipeline repair internal expanding ring structure.

Background

With the rapid development of industrial and urban construction, at present, many factories and cities in China gradually enter a maintenance and management era from a construction era, particularly underground pipe networks are damaged to different degrees along with the increase of operation years, and partial pipelines gradually enter an accident high-rise period. Therefore, planned maintenance and repair of old pipelines has been reluctant. However, the maintenance and repair of pipelines are often influenced by various complex geographical environmental factors such as traffic, underground pipelines, underground buildings and the like, and the trenchless repair technology with small influence on the surrounding environment is promoted to be widely applied. Compared with the excavation construction technology, the non-excavation construction technology has the characteristics of no influence on traffic, no damage to the environment, short construction period, good construction safety, remarkable social benefit and the like, and is suitable for repairing and enhancing protection operation of various pipelines.

Trenchless pipeline repair techniques can be mainly classified into the following categories:

1) coating lining method: a method of forming a reinforcing layer in a raw pipe using a spray material. Before repairing, the pipeline needs to be plugged and cleaned, a robot carrying a camera enters the pipeline to ensure that the inner wall of the original pipe is dry and has no residue, and then materials such as cement mortar, epoxy resin, epoxy glass flakes and the like are sprayed in the original pipe according to a reasonable sequence by a rotary spray head or a manual method, but the method has the defects of low construction speed and limited repairing capability on the original pipeline.

2) The method of turning over the lining: also known as CIPP process (in situ curing process). Before repair, the pipeline needs to be plugged and cleaned by high-pressure water, and then a robot carrying a camera enters the pipeline to know the damage condition of the pipeline and fill up the water leakage point on the inner wall. Then the adhesive and the curing agent are mixed evenly, the curing time is adjusted to be 3 hours for initial setting and 12 hours for final setting. And then, the single surface of the high-strength anti-seepage fiber hose is saturated and impregnated with epoxy resin, and the high-strength anti-seepage fiber hose is completely turned into the original pipe by using water pressure or air pressure until the hose expands and extends and is tightly attached to the pipe wall of the original pipe. And then, the hose is solidified by adopting a circulating heating principle, and the joint is treated well after cooling, namely a smooth high-strength new pipe is formed in the old pipeline. However, the method has the defects of high requirements on the construction technology level, high requirements on the treatment of branch pipe interfaces, narrow selection range of resin and large influence of the ambient temperature on curing.

3) Pull-in lining method: i.e. to pull a new HDPE pipe into the original pipe. Firstly, welding an HDPE pipe, then installing a conical reaming head at the front section of the HDPE pipe to overcome the resistance of the pipe when the pipe is pulled, and meanwhile, installing a protective ring to prevent the HDPE pipe from being scratched. And then drawing the HDPE pipeline into the original pipeline by using a winch. Because the new pipeline is slightly smaller than the original pipeline in inner diameter, cement mortar is used for filling a gap between the new pipeline and the original pipeline to play a role in fixing. Although the area of the overflowing section is reduced after the PE pipe is pulled in, the friction coefficient of a new pipeline is also reduced, and the overflowing capacity of the pipeline is reduced by 5% -30% by comprehensively considering the functions of the PE pipe and the new pipeline. But the method has the defects of higher cost, larger reduction of the section of the pipeline and capability of only selecting the position of the working pit at the joint of the branch pipe.

4) Seamless lining method: namely a technology for inserting HDPE pipes with pipe diameters not less than the original pipe diameters into the original pipeline. The HDPE pipe is first reduced in diameter mechanically, then pulled into the original pipe by means of outer traction force, and finally injected with high temperature and high pressure medium or restored to original pipe diameter. At the moment, the new pipe and the old pipe are tightly combined without grouting. HDPE pipe requires some thermoplasticity because of the deformation that occurs. This method differs from the pull-in lining method in that a diameter reduction treatment is performed before a new pipe is pulled into an old pipe. However, the method has the defects that only straight pipelines can be repaired, the requirements on the construction technical level and machinery are high, the position of a working pit can be selected only at the joint of the branch pipe, construction equipment needs a large storage space, and during construction, water flow needs to replace the pipeline.

5) The method of lining the spiral pipe comprises the following steps: a method for pulling a belt-shaped pipe made of polyvinyl chloride, polyethylene, polypropylene, polyvinylidene fluoride and other materials into an original pipe after winding the belt-shaped pipe into a spiral pipe with a fixed caliber in a well by using a pipe making machine. The two sides of the section bar are respectively provided with a male lock catch and a female lock catch which can be interlocked in spiral winding, and a continuous seamless structural new pipe is formed in the original pipe. The method can still normally operate when the water depth is 30 percent, is suitable for long-distance pipeline repair, improves the flow capacity after the original pipe is repaired, and is developed into a more perfect method in the trenchless repair of the drainage pipeline.

In summary, in the prior art, for repairing a pipeline, a new pipe wall is formed on the inner wall of the original pipe, and the forming mode or the coating method needs to coat a coating layer on the inner wall of the original pipe layer by layer, so that the construction speed is slow; or a new hose is adhered by adhesives such as resin coated on the wall of the original hose, proper resin is required to be selected, and the new hose is difficult to popularize and apply due to the complex technology and great influence of environmental temperature.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a pipe repair internal expanding ring structure, because of the damaged needs of pipeline change lead to construction speed slow, with high costs among the prior art, receive environmental factor to influence, the problem of be not convenient for popularize.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a pipeline restoration internal expanding ring structure, is including covering the stagnant water sealing layer in pipeline restoration portion, one side of the relative pipeline restoration portion of stagnant water sealing layer is equipped with the annular caulking groove, be equipped with the internal expanding ring subassembly that matches with it in the annular caulking groove, the internal expanding ring subassembly compresses tightly the stagnant water sealing layer after adjusting, makes it hug closely pipeline restoration portion and realize sealed effect.

Optionally, the annular caulking groove is provided with two grooves and is respectively located at two ends of the pipeline repairing part along the length direction of the pipeline repairing part.

Optionally, the inner expanding ring assembly comprises two end-to-end straps, the end portions of the straps are provided with i-shaped connecting pieces, the slots of the i-shaped connecting pieces are internally provided with connecting plates, and the connecting plates, the i-shaped connecting pieces and the straps are connected to form a closed loop.

Optionally, an auxiliary block is arranged at one end of the strap close to the i-shaped connecting piece, and a threaded hole is formed in the auxiliary block.

Optionally, a gasket is arranged on one side, close to the water-stopping sealing layer, of the inner piston ring assembly, and the gasket is located at a connecting position of the strap and the i-shaped connecting piece, and a connecting portion of the i-shaped connecting piece and the connecting plate.

Optionally, the water-stopping sealing layer is a rubber sealing ring.

The utility model has the advantages that:

1. the utility model discloses a pipeline restoration internal expanding ring structure need not punch etc. and have the operation of impactedness waiting to restore the pipeline, can not cause further structural damage to the pipeline and can accomplish repair to the stagnant water sealing layer forms the extrusion with pipeline inner wall crack department contact, cuts off the leak source, and hourglass is mended soon in realizing, has the advantage that repair efficiency is high, repair effect is good.

2. The utility model discloses a pipe repair inner expanding ring structure, the setting of annular caulking groove can fix a position so that the installation to the inner expanding ring subassembly on the one hand, and on the other hand can prevent that the inner expanding ring subassembly from receiving external force factor influence in the use and appearing the migration phenomenon, further guarantees the sealed effect of stagnant water.

3. The utility model discloses a ring structure rises in pipeline restoration, according to the difference of pipeline restoration portion size, the size of required stagnant water sealing layer is then different, consequently, sets up twice annular caulking groove at the both ends of stagnant water sealing layer on its length direction to the ring subassembly that rises in the installation seals and can guarantee the stagnant water effect, thereby shortens the hoop of ring subassembly that rises in order to save the cost.

4. The utility model discloses an inner expanding ring structure is restoreed to the pipeline, and it is inboard to arrange the stagnant water sealing layer in with two hoop bands, and use tools struts it, at strap tip installation I-shaped connecting piece thereupon, at last transversely insert the connecting plate can, easy operation is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an inner expanding ring structure for repairing a pipeline according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Description of reference numerals:

1. sealing layer of water stop; 2. an annular caulking groove; 3. an inner expansion ring assembly; 31. a cuff; 32. an I-shaped connecting piece; 33. a connecting plate; 4. an auxiliary block; 41. a threaded hole; 5. and (7) a gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides an inner expanding ring structure is restoreed to pipeline, as shown in figure 1, including covering in the sealing layer of sealing of water 1 of pipeline restoration portion, annular caulking groove 2 has been seted up to one side of sealing layer of water 1 relative pipeline restoration portion, installs the inner expanding ring subassembly 3 that matches with it in this annular caulking groove 2, and inner expanding ring subassembly 3 compresses tightly sealing layer of water 1 after adjusting, makes it hug closely pipeline restoration portion in order to realize the sealed effect of stagnant water. Therefore, the repairing operation with impact property such as punching on the pipeline to be repaired is not needed, the repairing work can be completed without causing further structural damage to the pipeline, so that the water stopping sealing layer 1 is contacted with the crack of the inner wall of the pipeline to form extrusion, a water source of a leakage point is cut off, the quick repairing of the inner leakage is realized, and the repairing method has the advantages of high repairing efficiency and good repairing effect. In addition, annular caulking groove 2 can fix a position so that the installation to internal expanding ring subassembly 3 on the one hand, and on the other hand can prevent that the migration phenomenon from appearing in internal expanding ring subassembly 3 receives external force factor influence in the use, further guarantees the sealed effect of stagnant water.

As shown in fig. 1, the annular caulking groove 2 is provided with two and is respectively located at both ends of the pipe repair portion in the length direction thereof. According to the difference of pipeline restoration portion size, the size of required stagnant water sealing layer 1 is then different, consequently, seals at stagnant water sealing layer 1 along its ascending both ends in length direction and can guarantee the stagnant water effect to shorten the hoop of inner piston ring subassembly 3 and prick the width in order to save the cost. In addition, in other embodiments, the number of the annular caulking grooves 2 is not limited, and may be four or six, and the inner expanding ring assembly 3 matched with the new annular caulking groove 2 is increased while the new annular caulking groove 2 is opened.

As shown in fig. 1 and 2, the inner expanding ring assembly 3 includes two end-to-end straps 31, the ends of the straps 31 are provided with i-shaped connectors 32, and slots of the i-shaped connectors 32 are provided with connecting plates 33, so that the connecting plates 33, the i-shaped connectors 32, and the straps 31 are connected and adjusted to form a closed loop, thereby compressing the water-stop sealing layer 1. Specifically, the two bands 31 are firstly placed on the inner side of the water-stopping sealing layer 1, the two bands are spread by using a tool, then the I-shaped connecting pieces 32 are installed at the end parts of the bands 31, and finally the connecting plates 33 are transversely inserted, so that the operation is simple and convenient, wherein the width of the connecting plates 33 can be customized on site according to the actual distance between the two I-shaped connecting pieces 32. In other embodiments, the hoop 31 is one, i-shaped connectors 32 are arranged at the head end and the tail end of the hoop, and then the connecting plates 33 are inserted according to the previous process operation to achieve the same effect, so that the operation is more convenient, but the hoop 31 is too long, which is not beneficial to repairing a large-diameter pipeline.

As shown in FIG. 2, an auxiliary block 4 is disposed at one end of the belt 31 close to the I-shaped connecting member 32, and a threaded hole 41 is opened on the auxiliary block 4. As the strap 31 needs to be unfolded by using a tool in the operation process, the auxiliary block 4 is arranged, and a transverse plate or a transverse rod is detachably arranged through the threaded hole 41 to be used as a force borrowing point, so that the jack can be conveniently used.

As shown in fig. 1 and 2, a gasket 5 is arranged on one side of the inner expanding ring assembly 3 close to the water-stop sealing layer 1, and the gasket 5 is located at the connection position of the hoop 31 and the i-shaped connecting piece 32, and the i-shaped connecting piece 32 and the connecting plate 33, so that the hoop 31 is prevented from scratching the inner water-stop sealing layer 1 when the inner expanding ring assembly 3 is adjusted and installed.

As shown in fig. 1, the sealing layer 1 is a rubber sealing ring, which has a good anti-leakage effect, and in this embodiment, the sealing layer 1 has a width of 35cm, and needs to have a certain width to support a certain degree of joint dislocation, and when the repaired pipeline causes the dislocation between the pipe joints due to geological differences or other problems, the sealing layer 1 extends within the supporting range, and the pipeline will not settle again to cause water seepage.

The working principle of the pipeline repairing inner expanding ring structure is as follows: when the water-stopping sealing layer is used, the water-stopping sealing layer 1 is positioned at the repairing part, the inner piston ring assembly 3 is installed after the water-stopping sealing layer 1 is in place, the two strap belts 31 are firstly placed on the inner side of the water-stopping sealing layer 1, then a transverse plate or a transverse rod is installed through the threaded hole 41 to serve as a force application point and is spread by using a jack, then the I-shaped connecting piece 32 is installed at the end part of the strap belt 31, and finally the connecting plate 33 is transversely inserted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a pipeline restoration internal expanding ring structure, its characterized in that, is including covering stagnant water sealing layer (1) in pipeline restoration portion, one side of stagnant water sealing layer (1) relative pipeline restoration portion is equipped with annular caulking groove (2), be equipped with internal expanding ring subassembly (3) that match with it in annular caulking groove (2), internal expanding ring subassembly (3) compress tightly stagnant water sealing layer (1) after adjusting, make it hug closely pipeline restoration portion and realize sealed effect.

2. The pipe repair inner expansion ring structure according to claim 1, wherein the annular caulking groove (2) is provided with two passages and is respectively located at both ends of the pipe repair part in the length direction thereof.

3. The pipe repairing inner expanding ring structure according to claim 1, wherein the inner expanding ring assembly (3) comprises two end-to-end straps (31), the ends of the straps (31) are provided with I-shaped connectors (32), the slots of the I-shaped connectors (32) are provided with connecting plates (33), and the connecting plates (33), the I-shaped connectors (32) and the straps (31) are connected to form a closed loop.

4. The pipe repairing inner expanding ring structure as claimed in claim 3, wherein an auxiliary block (4) is arranged at one end of the strap (31) close to the I-shaped connecting piece (32), and a threaded hole (41) is arranged on the auxiliary block (4).

5. The pipeline repairing inner expanding ring structure as claimed in claim 4, wherein a gasket (5) is arranged on one side of the inner expanding ring assembly (3) close to the water-stopping sealing layer (1), and the gasket (5) is located at the connecting position of the strap (31) and the I-shaped connecting piece (32) and the connecting plate (33).

6. The pipe repair inner expanding ring structure as claimed in claim 1, wherein the water-stopping sealing layer (1) is a rubber sealing ring.