CN115388263B - Repairing device and repairing method for large-diameter steel pipe - Google Patents
Repairing device and repairing method for large-diameter steel pipe Download PDFInfo
- Publication number
- CN115388263B CN115388263B CN202211051095.0A CN202211051095A CN115388263B CN 115388263 B CN115388263 B CN 115388263B CN 202211051095 A CN202211051095 A CN 202211051095A CN 115388263 B CN115388263 B CN 115388263B
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- diameter steel
- steel pipe
- large diameter
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- compensation
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 152
- 239000010959 steel Substances 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003822 epoxy resin Substances 0.000 claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 37
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 48
- 229910000639 Spring steel Inorganic materials 0.000 claims description 24
- 239000004677 Nylon Substances 0.000 claims description 21
- 229920001778 nylon Polymers 0.000 claims description 21
- 239000003365 glass fiber Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000010425 asbestos Substances 0.000 claims description 8
- 239000003085 diluting agent Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000000565 sealant Substances 0.000 claims 1
- 238000004080 punching Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1657—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section lengths of rigid pipe being inserted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
A repairing device and a repairing method for a large-diameter steel pipe relate to a repairing device for the large-diameter steel pipe, which comprises the steps of prefabricating a compensating pipe and a required accessory, closing a valve of the large-diameter steel pipe, cutting the large-diameter steel pipe at a damaged position, punching the large-diameter steel pipe, preparing epoxy resin filler, installing the compensating pipe and the accessory, plugging a gap and testing pressure, and repairing the large-diameter steel pipe.
Description
Technical Field
The invention relates to a repairing device of a large-diameter steel pipe, in particular to a repairing device and a repairing method of the large-diameter steel pipe, and particularly relates to a stretching-resistant repairing device and a repairing method of the large-diameter steel pipe.
Background
It is known that pipes are one of gas, liquid and loose solid transportation means, pipes are overhead on some road sides or above, street sides or above and factory road sides, in order to reduce joints, the pipes are usually welded by a plurality of pipes to form a long pipe, the pipes are supported by cement seats, brick seats, steel structure seats or pipe seats formed by other buildings, the pipes are influenced by micro-vibration formed by running vehicles, vibration formed by running factory equipment and the like when approaching roads, the pipes and pipe seat supporting members adopt two major types of fixed type and movable type so that the pipes and other members do not generate relative displacement, when a plurality of pipes are laid in parallel, the fixed pipe seats of the pipes are arranged on the same cross beam to form centralized fixation, in view of the characteristic that part of the pipes are on the road sides, the operation of a carrying vehicle forgets to put down the pipes caused by a container, the collision pipes caused by over-high goods passing under the pipes, the collision pipes caused by vehicle accidents occur when the occurrence of the vehicle accidents occur, the deformation of the pipes caused by the pipes can be simply reinforced, the leakage pipes can be recovered by the large-scale operation of the pipes only in a long-time consuming mode for the enterprises to resume running.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a device and a method for repairing a large-diameter steel pipe, which are used for removing a problem pipeline by cutting, and two compensation pipes are respectively and fixedly connected with two large-diameter steel pipes to obtain quick stretch-proof repair of the large-diameter steel pipe.
The technical scheme for realizing the invention is as follows:
A repairing device for large-diameter steel pipes comprises a compensating pipe, a screw rod, a lantern ring A, a lantern ring B, a nut, a sealing ring A and a sealing ring B, wherein the same number of surrounding holes E which are in the same axial direction are respectively arranged at the two ends of the compensating pipe close to the compensating pipe, the inner ends of the matched number of the screw rods are respectively arranged in the holes E, elastic supports for the inner ends of the screw rods are respectively arranged in the compensating pipe of the holes E, the lantern ring A and the lantern ring B are identical in structure, the inner wall of the diameter-reducing ring of the lantern ring A is in clearance fit with the outer edge of the compensating pipe, an expanding ring is arranged at one side of the diameter-reducing ring, a plurality of holes B corresponding to the compensating pipe holes E are arranged between the inner wall of the expanding ring and the outer edge surface of the expanding ring, the sealing ring A is arranged between the outer end surface of the diameter-reducing ring of the lantern ring A and the end of the large-diameter steel pipe B, the sealing ring B is arranged between the outer end surface of the diameter-reducing ring of the lantern ring B and the end of the large-diameter steel pipe A, the screws respectively penetrate through the holes A and C of the large-diameter steel pipe B close to the end of the large-diameter steel pipe and the large-diameter-ring B respectively, and after the holes B of the expanding ring A and the expanding ring B are respectively locked between the inner surface of the expanding ring A and the large-diameter-ring B respectively.
The repairing device for the large-diameter steel pipe comprises two sections of compensation pipes, wherein connecting flanges are respectively arranged at the butt joint positions of the two sections of compensation pipes, a plurality of connecting screws are fixed by nuts after penetrating through the light holes of the two connecting flanges, annular sealing gaskets are arranged on the opposite surfaces of the two connecting flanges, a plurality of spring steel plates are respectively arranged on the inner walls of the two compensation pipes, the outer end of each spring steel plate is fixedly connected with the inner end of a screw rod, and the inner ends of the plurality of spring steel plates are fixedly connected with the inner walls of the connecting flanges of the two compensation pipes.
In the repairing device for the large-diameter steel pipe, the inner ends of the plurality of spring steel plates are fixed in clamping grooves formed in the outer edge surfaces of the two supporting rings, and the two supporting rings are respectively fixed on the inner walls of the connecting flanges of the two compensating pipes.
In the repairing device for the large-diameter steel pipe, an excessive ring is arranged between the diameter-reducing ring and the diameter-expanding ring of the lantern ring A, and an annular step is formed on the outer end face of the diameter-reducing ring on the inner surface of the excessive ring.
The repairing device for the large-diameter steel pipe is characterized in that the sealing ring A and the sealing ring B are identical in structure, a surrounding annular groove is formed in the position, close to the inner wall, of the outer side face of the sealing ring A, a sharp piece is arranged between the annular groove and the inner wall, the outer edge of the sealing ring A is matched with the inner wall of the expanding ring, and the inner wall of the sealing ring A is matched with the outer edge of the compensation pipe.
In the repairing device for the large-diameter steel pipe, the caulking agent is epoxy resin filler.
The repairing method of the repairing device of the large-diameter steel pipe comprises the following steps:
Prefabricating a compensation pipe and required accessories, closing a valve of a large-diameter steel pipe, cutting the large-diameter steel pipe at the damaged part, punching holes on the large-diameter steel pipe, preparing epoxy resin filler, installing the compensation pipe and the accessories, adding a blocking gap and testing pressure;
A. prefabricating a compensation pipe and required accessories:
Manufacturing a compensation pipe, a lantern ring A, a lantern ring B, a sealing ring A, a sealing ring B, a nut and a connecting screw which can be inserted into the large-diameter steel pipe according to the diameter of the inner hole of the erected large-diameter steel pipe;
B. closing the valve of the large-diameter steel pipe:
completely closing valves for liquid and liquid discharging directions according to the position of the damaged part of the large-diameter steel pipe;
C. cutting a large-diameter steel pipe at the damaged part:
marking cutting length on the large-diameter steel pipe after confirming the damaged part of the large-diameter steel pipe, and then dividing the large-diameter steel pipe into a large-diameter steel pipe A and a large-diameter steel pipe B by using cutting equipment;
D. Punching on a large-diameter steel pipe:
Punching a plurality of holes A and a plurality of holes C on a large-diameter steel pipe A and a large-diameter steel pipe B according to the positions of the compensation pipes, which are close to screw rods at two ends, cleaning the large-diameter steel pipe A and the large-diameter steel pipe B to ensure no stains, sleeving nylon braid on the holes A at the outer edge of the large-diameter steel pipe A, and fixing two ends of the nylon braid sleeve by using hot melting;
E. preparing epoxy resin filler:
mixing epoxy resin, diluent and curing agent in proportion, and mixing epoxy resin filler with asbestos powder to obtain outer filler;
F. Installing a compensation tube and accessories:
Inserting one half of the compensation pipe into a large-diameter steel pipe A, inserting the other half of the compensation pipe into a large-diameter steel pipe B, adjusting a sealing ring B to be attached to the end part of the large-diameter steel pipe A, pulling out the lantern ring B to enable a hole D of a lantern ring B to correspond to a hole A of the large-diameter steel pipe A, adjusting the angle of one half of the compensation pipe to enable a screw rod of the one half of the compensation pipe to be inserted into the hole A of the large-diameter steel pipe A under the action of a spring steel plate;
G. And (5) adding and plugging a seam:
Placing glass fiber into epoxy resin filler for soaking, filling the soaked glass fiber into a gap between the expanding ring of the lantern ring B and the large-diameter steel pipe A by using a roller and tamping;
H. Pressure testing:
and opening a valve in the liquid direction, and opening the valve in the liquid draining direction after confirming no leakage.
According to the repairing method of the repairing device of the large-diameter steel pipe, before the compensating pipe is used, all screws are restrained in the hole E of the compensating pipe by using annular nylon braid, and when the repairing device is used, the annular nylon braid is taken down by using a cutter after the two compensating pipes are respectively inserted into the inner holes of the large-diameter steel pipe A and the large-diameter steel pipe B.
According to the repairing method of the repairing device of the large-diameter steel pipe, the epoxy resin filler is prepared from epoxy resin, diluent and curing agent in parts by weight; the glass fiber rope is soaked with the epoxy resin filler and the glass fiber is soaked with the epoxy resin filler.
According to the repairing method of the repairing device for the large-diameter steel pipe, the outer layer filler is epoxy resin filler and asbestos powder = + parts by weight.
Through the above disclosure, the beneficial effects of the invention are:
According to the repairing device and the repairing method for the large-diameter steel pipe, two sections of compensation pipes are respectively inserted into the large-diameter steel pipe A and the large-diameter steel pipe B, the spring steel plates in the two compensation pipes are respectively used for ejecting screws, two lantern rings are used for respectively plugging gaps at the joint of the two sealing rings, gaps around the screws are plugged through epoxy resin filler, and the connection flanges of the two compensation pipes and the annular sealing gasket between the two compensation pipes are used for obtaining the sealing of the compensation pipes.
Drawings
FIG. 1 is a process step diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the assembled structure of the present invention;
FIG. 4 is a schematic diagram of a half of the compensation tube structure of the present invention;
FIG. 5 is a schematic perspective view of a support ring of the present invention;
FIG. 6 is a schematic view of the spring steel plate structure of the present invention;
FIG. 7 is a schematic view of a partial perspective view of a spring steel plate of the present invention;
FIG. 8 is a perspective view of collar A of the present invention;
FIG. 9 is a schematic view showing the internal perspective of the collar A of the present invention;
FIG. 10 is a schematic perspective view of a seal ring A according to the present invention;
FIG. 11 is a schematic view of the annular groove structure of the seal ring A;
In the figure, 1, a large-diameter steel pipe A, 2, a compensation pipe, 3, a spring steel plate, 4, a supporting ring, 5, a large-diameter steel pipe B, 6, a sealing ring A, 7, a sleeve ring A, 8, a sleeve ring B, 9, a sealing ring B, 10, a screw rod, 11, a nut, 12, an epoxy resin filler, 13, a connecting screw, 14, a connecting flange, 15, a hole A, 16, a hole B, 17, a hole C, 18, a hole D, 19, a hole E, 20, a clamping groove, 21, spot welding, 22, an excessive ring, 23, an expanding ring, 24, a reducing ring, 25, an annular step, 26, an annular groove, 27, a tip piece, 28 and a light hole.
Detailed Description
The invention is further described below with reference to examples, which are not intended to be limiting, but are merely illustrative of the manner in which the invention can be practiced, and any equivalent arrangements within the scope of the disclosed technology are substituted for those in which the invention is practiced;
The repairing device for the large-diameter steel pipe comprises a compensation pipe 2, a screw rod 10, a lantern ring A7, a lantern ring B8, a nut 11, a sealing ring A6 and a sealing ring B9, wherein surrounding holes E19 which are the same in number and in the same axial direction are respectively arranged at the two ends of the compensation pipe 2, the inner ends of the screw rods 10 with the matched number are respectively arranged in the holes E19, and elastic supports for the inner ends of the screw rods 10 are respectively arranged in the compensation pipe 2 of the holes E19; the structure of the sleeve ring A7 is the same as that of the sleeve ring B8, an excessive ring 22 is arranged between a diameter reducing ring 24 and an expanding ring 23 of the sleeve ring A7, an annular step 25 is formed on the outer end face of the diameter reducing ring 24 on the inner surface of the excessive ring 22, the inner wall of the diameter reducing ring 24 of the sleeve ring A7 is in clearance fit with the outer edge of the compensation tube 2, an expanding ring 23 is arranged on one side of the diameter reducing ring 24, a plurality of holes B16 corresponding to holes E19 of the compensation tube 2 are formed between the inner wall and the outer edge face of the expanding ring 23, two ends of the compensation tube 2 penetrate through the end part of the large-diameter steel tube A1 and the end part of the large-diameter steel tube B5, a sealing ring A6 is arranged between the outer end face of the diameter reducing ring 24 of the sleeve ring A7 and the end part of the large-diameter steel tube B5, a sealing ring B9 is arranged between the outer end face of the diameter reducing ring 24 of the sleeve ring B8 and the end part of the large-diameter steel tube A1, screws 10 near the two ends of the compensation tube 2 respectively penetrate through holes A15 near the end part of the large-diameter steel tube A1 and C17 near the end part of the large-diameter steel tube B5 and holes B8 and the holes D18 of the large-diameter expanding ring B7 and the enlarged ring D18 are respectively, after the two ends of the large-diameter expanding ring 2 and the ring D18 are respectively locked by the large-diameter ring D18 and the large-diameter ring 2B 7 and the large-diameter ring 2B 2 and the large-diameter ring 2 is respectively, a sealing ring 2 is respectively, and the large-diameter sealing ring 2 is respectively between the large ring 2 and the large-diameter ring 2 and the inner ring 2 is respectively.
Referring to fig. 2,3, 4, 5, 6 or 7, the compensating tube 2 is two sections, the butt joint of the two compensating tubes 2 is respectively provided with a connecting flange 14, a plurality of connecting screws 13 are connected with the unthreaded holes 28 of the two connecting flanges 14 in a penetrating way and then fixed by nuts, annular sealing gaskets are arranged on the opposite surfaces of the two connecting flanges 14, the inner walls of the two compensating tubes 2 are respectively provided with a plurality of spring steel plates 3, the inner ends of the plurality of spring steel plates 3 are fixed in clamping grooves 20 arranged on the outer edge surfaces of the two supporting rings 4, the two supporting rings 4 are respectively welded and fixed on the inner walls of the connecting flanges 14 of the two compensating tubes 2 through spot welding 21, the outer end of each spring steel plate 3 is fixedly connected with the inner end of a connecting screw 10, and the inner ends of the plurality of spring steel plates 3 are fixedly connected with the inner walls of the connecting flanges 14 of the two compensating tubes 2, so that elastic supports for the inner ends of the screw 10 are formed by the plurality of spring steel plates 3.
Referring to fig. 2, 3, 10 or 11, the structure of the sealing ring A6 is the same as that of the sealing ring B9, a surrounding annular groove 26 is arranged at the position, close to the inner wall, of the outer side surface of the sealing ring A6, a sharp piece 27 is arranged between the annular groove 26 and the inner wall, the outer edge of the sealing ring A6 is matched with the inner wall of the expanding ring 21, and the inner wall of the sealing ring A6 is matched with the outer edge of the compensation tube 2.
The repairing method of the repairing device of the large-diameter steel pipe is combined with fig. 1 and fig. 2 to 11, and comprises the following steps:
Prefabricating a compensation pipe and required accessories, closing a valve of a large-diameter steel pipe, cutting the large-diameter steel pipe at a damaged part, punching holes on the large-diameter steel pipe, preparing epoxy resin filler 12, installing the compensation pipe and the accessories, adding a blocking gap and testing pressure;
A. prefabricating a compensation pipe and required accessories:
selecting a compensation tube 2 according to the inner hole diameter of an erected large-diameter steel tube, dividing the compensation tube 2 into two sections from the middle part, respectively punching holes E19 on the two compensation tubes 2, taking two connecting flanges 14 to punch corresponding light holes 28, welding the two connecting flanges 14 and the two compensation tubes 2 firmly into a whole, taking two support rings 4, turning clamping grooves 20 on the outer edge surfaces of the two support rings 4, correspondingly connecting the middle parts of one ends of the spring steel plates 3 with screws 10 by utilizing spot welds 21 respectively, respectively putting the other ends of the spring steel plates 3 into the clamping grooves 20 of the two support rings 4, and then respectively welding the two support rings 4 with the two compensation tubes 2, wherein the lantern rings A7 and B8 have the same structure, can be customized by a rubber factory through cutting steel rings with the consistent thickness, punching holes B16 and D18' on the expanded diameter rings 23 of the two lantern rings, and the sealing rings A6 and B9, and connecting screws 13 and 11 are preferably manufactured by adopting a rubber factory, and the ring steel belts 2 are preferably not constrained by the ring steel belts 2 in the holes E19 of the compensation tubes 2;
B. closing the valve of the large-diameter steel pipe:
completely closing valves for liquid and liquid discharging directions according to the position of the damaged part of the large-diameter steel pipe;
C. cutting a large-diameter steel pipe at the damaged part:
Marking cutting length on the large-diameter steel pipe after confirming the damaged position of the large-diameter steel pipe, and then dividing the large-diameter steel pipe into a large-diameter steel pipe A1 and a large-diameter steel pipe B5 by using cutting equipment;
D. Punching on a large-diameter steel pipe:
A plurality of holes A15 are drilled on the large-diameter steel pipe A1 and a plurality of holes C17 are drilled on the large-diameter steel pipe B5 according to the position of the compensation pipe 2, which is close to the screw rods 10 at the two ends, wherein the hole diameters of the holes A15 and the holes C17 can be slightly larger, then the inner wall and the outer wall of the large-diameter steel pipe A1 and the large-diameter steel pipe B5 are cleaned, so that no stains and deformation are ensured, if local deformation exists, the local deformation can be corrected by using a tool, then the nylon braid is sleeved on the plurality of holes A15 at the outer edge of the large-diameter steel pipe A1, the two ends of the nylon braid sleeve are fixed by using hot melting to prevent the outer end of the screw rod 10 from being ejected, and the other nylon braid is sleeved on the plurality of holes C17 at the outer edge of the large-diameter steel pipe B5 and the two ends of the nylon braid sleeve are fixed by using hot melting;
E. compounding an epoxy resin filler 12:
The method comprises the steps of mixing epoxy resin, a diluent and a curing agent in proportion, mixing a certain amount of mixed epoxy resin filler 12 with asbestos powder to obtain an outer filler, mixing the epoxy resin filler 12 with the epoxy resin, the diluent and the curing agent according to the weight ratio of epoxy resin, diluent and curing agent=10+30+20, soaking glass fiber ropes by using the epoxy resin filler 12 and glass fibers by using the epoxy resin filler 12, mixing the outer filler with the epoxy resin filler 12, asbestos powder=10+30, mixing the curing agent with T-31, mixing the diluent with acetone, and mixing the asbestos powder with dry asbestos powder.
F. Installing a compensation tube and accessories:
Inserting one half of the compensation tube 2 into the large-diameter steel tube A1, at the moment, backing the annular nylon braid on the compensation tube 2, taking down the annular nylon braid by using a cutter, then inserting the other half of the compensation tube 2 into the large-diameter steel tube B5, at the moment, backing the annular nylon braid on the other half of the compensation tube 2, taking down the annular nylon braid by using the cutter, attaching an adjusting seal ring B9 to the end part of the large-diameter steel tube A1, then pulling out the lantern ring B8 to enable a hole D18 of the lantern ring B8 expanded ring to correspond to a hole A15 of the large-diameter steel tube A1, taking down the nylon braid of the large-diameter steel tube A1, then adjusting the angle of one half of the compensation tube 2 to enable a screw 10 of the compensation tube 2 to be inserted into a hole A15 of the large-diameter steel tube A1 under the action of a spring steel plate 3, then adjusting the seal ring A6 to be attached to the end part of the large-diameter steel tube B5, externally pulling the lantern ring A7 to enable a hole B16 of the lantern ring A7 to correspond to a hole C17 of the large-diameter steel tube B5, taking down the nylon braid of the large-diameter steel tube B5, placing the annular seal between two connecting gaskets 14, then adjusting the lantern ring B8 to enable a hole D18 of the lantern ring to correspond to the hole D18 of the large-diameter steel tube A1, corresponding to the hole D18, and then adjusting the angle of the adjusting the lantern ring B8 to correspond to the hole D18, inserting the hole 10 of the large-shaped nylon braid 10 under the compensation tube 2 under the condition of the expansion ring 2, and pressing the hole 10 under the condition of the hole B1 by the spring steel plate 3, and the hole B5, and pressing the hole B5, and the hole B5;
G. And (5) adding and plugging a seam:
Placing glass fiber into epoxy resin filler 12 for soaking, filling the soaked glass fiber into a gap between the collar B8 expanding ring and the large-diameter steel pipe A1 by using a roller and tamping;
H. Pressure testing:
and opening a valve in the liquid direction, and opening the valve in the liquid draining direction after confirming no leakage.
The invention is not described in detail in the prior art.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211051095.0A CN115388263B (en) | 2022-08-31 | 2022-08-31 | Repairing device and repairing method for large-diameter steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211051095.0A CN115388263B (en) | 2022-08-31 | 2022-08-31 | Repairing device and repairing method for large-diameter steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115388263A CN115388263A (en) | 2022-11-25 |
| CN115388263B true CN115388263B (en) | 2025-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211051095.0A Active CN115388263B (en) | 2022-08-31 | 2022-08-31 | Repairing device and repairing method for large-diameter steel pipe |
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| CN (1) | CN115388263B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN114110296A (en) * | 2021-11-26 | 2022-03-01 | 三杰节能新材料股份有限公司 | A quick repair method for heating pipes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20034117L (en) * | 2002-09-17 | 2004-03-18 | Orinippon Trading Sdn Bhd | Method and apparatus for repairing a rudder |
| CN215891552U (en) * | 2021-09-16 | 2022-02-22 | 江苏吉华管业有限公司 | Sealed pipeline compensator |
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2022
- 2022-08-31 CN CN202211051095.0A patent/CN115388263B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN114110296A (en) * | 2021-11-26 | 2022-03-01 | 三杰节能新材料股份有限公司 | A quick repair method for heating pipes |
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| Publication number | Publication date |
|---|---|
| CN115388263A (en) | 2022-11-25 |
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