CN113202174A - Method for repairing leakage of cement drain pipe by using PE 100-grade modified O-concave O-lining pipe - Google Patents
Method for repairing leakage of cement drain pipe by using PE 100-grade modified O-concave O-lining pipe Download PDFInfo
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- CN113202174A CN113202174A CN202110626700.1A CN202110626700A CN113202174A CN 113202174 A CN113202174 A CN 113202174A CN 202110626700 A CN202110626700 A CN 202110626700A CN 113202174 A CN113202174 A CN 113202174A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
- B29C53/086—Bending or folding of tubes or other profiled members bending radially, i.e. deformig the cross-section of the tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/16—Straightening or flattening
- B29C53/20—Straightening or flattening of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
- B29C53/584—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features having a non-circular cross-section
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to a repairing method for repairing leakage of a cement drain pipe by pressing a PE 100-grade modified lining pipe from a circular pipe into a concave pipe and then inflating the concave pipe and changing the concave pipe back into the circular pipe, belonging to the technical field of leakage repairing of the cement drain pipe. According to the invention, the circular PE100 lining pipe is firstly pressed into the concave pipe, so that the lining pipe is conveniently and quickly pulled when entering the cement drainage pipe, and after the pulling is finished, the concave pipe is inflated to restore the circular pipe, so that a small gap is ensured between the lining pipe and the cement drainage pipe; thoroughly solved current pull the degree of difficulty in order to reduce when installing lining PE pipe additional in the cement drainage pipe, it is little a lot than cement drainage pipe internal diameter to do the diameter of lining PE pipe, lining PE pipe can appear deadweight, under the condition that intraductal sewage and cement drainage pipe take place to break and collapse, the high arc of low two in the middle of the formation warp, make lining PE mouth of pipe and cement drainage mouth of pipe split lead to sewage to flow into between lining PE pipe and the cement drainage pipe and can't thoroughly solve the problem of pipeline seepage.
Description
Technical Field
The invention relates to a repairing method for repairing leakage of a cement drain pipe by pressing a PE100 lining pipe from a circular pipe into a concave pipe and then inflating the concave pipe and changing the concave pipe back into the circular pipe, belonging to the technical field of leakage repairing of the cement drain pipe.
Background
Along with the increase of the service life of the underground cement drainage pipe for urban drainage and sewage discharge, under the action of interference factors such as corrosion of underground water in the pipeline, pipeline running load, geographical settlement, underground engineering and the like, joint cracking or pipeline damage and leakage phenomena can be caused to the cement pipe, so that the conveying function of the cement drainage pipe is lost, and soil loss caused by leakage water can cause road surface collapse. At present, the commonly used repairing method for the damaged cement drain pipe is to spray repairing glue or weld a leakage point, so that the cement drain pipe with longer service life can only be maintained for a short time, and the problem of damaged leakage cannot be thoroughly solved.
In order to solve the problems, a new method is provided for repairing the cement drain pipe in the prior art, namely a PE pipe with certain plasticity is lined in the cement drain pipe, so that the service life of the cement drain pipe is prolonged, and meanwhile, the corrosion resistance of the cement drain pipe is enhanced; however, because the inner wall of the cement drainage pipe is uneven, the distance between the two wellheads of the cement drainage pipe is long, the difficulty of the round PE pipe is high when the round PE pipe is pulled to enter the cement drainage pipe, the PE pipe is blocked when the PE pipe frequently enters a half or two thirds position of the cement drainage pipe, the round PE pipe cannot be pulled continuously, and therefore the project cannot be carried out continuously. Therefore, when the method is adopted, the diameter of the lining PE pipe is made to be much smaller than the inner diameter of the cement drainage pipe, so that a large gap is reserved between the outer surface of the lining PE pipe and the inner wall of the cement drainage pipe, the gap is not less than 20 cm generally, and the lining PE pipe is conveniently pulled in the cement drainage pipe; although the traction difficulty of the lining PE pipe in the cement drainage pipe is reduced, under the conditions that the lining PE pipe is subjected to self weight, sewage in the pipe and the cement drainage pipe are cracked and collapsed, the lining PE pipe has certain flexibility, the lining PE pipe can form arc deformation with a low middle part and two high ends, so that lining PE pipe orifices at two ends are deviated to the middle part, the lining PE pipe orifice and the cement drainage pipe orifice are cracked, and sewage flows between the outer surface of the lining PE pipe and the inner wall of the cement drainage pipe, so that the problem of pipeline leakage cannot be thoroughly solved; meanwhile, the sewage is retained in the middle of the lining PE pipe, which also causes the lining PE pipe to be incapable of working normally, so that a new repairing method for repairing the leakage of the cement drain pipe is necessary.
Disclosure of Invention
The invention aims to provide a method for repairing the leakage of a cement drain pipe by using a PE 100-grade modified concave-convex lining pipe, which aims to overcome the defects that the leakage of a pipeline cannot be completely solved by using the PE 100-grade modified concave-convex lining pipe, wherein the method is characterized in that the concave-convex pipe is firstly pressed into a circular pipe, so that the PE100 lining pipe is conveniently and quickly pulled when entering the cement drain pipe, and the concave-convex pipe is inflated to be recovered into the circular pipe after the pulling is finished, so that a small gap is ensured between the PE100 lining pipe and the cement drain pipe, and a large gap is reserved between the lining pipe and the cement drain pipe in the conventional repairing method, the lining pipe can be deformed in an arc shape with a low middle and two high ends, so that sewage flows between the lining pipe and the cement drain pipe due to cracking of the lining pipe and the cement drain pipe.
The invention realizes the purpose through the following technical scheme:
a method for repairing the leakage of a cement drain pipe by using a PE100 grade modified O-concave O-lining pipe is characterized in that: it comprises the following steps:
determining a repair area of a pipeline, surveying the inner diameter size, the length size and the site construction conditions of the pipeline to be repaired on site, evaluating and making a construction scheme, manufacturing a PE100 lining pipe with the diameter close to the inner diameter of the cement drainage pipe according to the surveyed size data, and transporting the PE100 lining pipe, construction equipment and auxiliary tools to a construction site;
secondly, plugging the upstream and downstream of the cement drain pipe to be repaired, stopping discharging sewage into the cement drain pipe to be repaired, and cleaning the cement drain pipe to be repaired by adopting a high-pressure water washing mode to discharge residual sewage in the cement drain pipe to be repaired, wherein no sediment is on the inner wall;
thirdly, carrying out hot-melt welding on the PE100 lining pipe and trimming the interface, wherein the PE100 lining pipe subjected to hot-melt welding is 4-6 m longer than the cement drainage pipe to be repaired, conveying the PE100 lining pipe subjected to hot-melt welding to lining pipe pressing equipment for pressing, and simultaneously conveying a light winch and a heavy winch to two ends of the cement drainage pipe to be repaired respectively, wherein the lining pipe pressing equipment and the light winch are placed at the same end of the cement drainage pipe to be repaired;
fourthly, pressing the PE100 lining pipe with the circular cross section into a PE100 concave pipe through lining pipe pressing equipment, manufacturing a connecting hole a at one end of the PE100 concave pipe, and spirally winding an industrial adhesive tape on the surface of the PE100 concave pipe to manufacture the PE100 prefabricated lining pipe with the concave cross section; sleeving a traction head with a connecting hole b on the end of the PE100 prefabricated lining pipe with the concave section, and solidifying the traction head and the PE100 prefabricated lining pipe with the concave section through the connecting hole b and a bolt to manufacture the prefabricated lining PE pipe of the underground cement drainage pipe;
fifthly, enabling a steel wire rope of the light winch to penetrate through the other end of the underground cement drain pipe at the placement position, driving the steel wire rope of the heavy winch at the other end to return to penetrate through the cement drain pipe to be repaired by using the steel wire rope of the light winch, pulling the steel wire rope of the heavy winch to the position where the light winch is placed, connecting the steel wire rope of the heavy winch with a pulling hole in a pulling head of a prefabricated lining PE pipe of the underground cement drain pipe, and enabling the prefabricated lining PE pipe of the underground cement drain pipe to penetrate through the cement drain pipe to be repaired by pulling of the heavy winch;
sixthly, after the prefabricated lining PE pipe is dragged into the cement drainage pipe, two ends of the prefabricated lining PE pipe are respectively 2-3 meters longer than the cement drainage pipe to be repaired and are raised to the ground; after the drawing head is removed, two ends of the prefabricated lining PE pipe are rounded, the two ends of the prefabricated lining PE pipe are welded and sealed by using a sealing pressure-bearing plug, and then the sealed prefabricated lining PE pipe is inflated or filled with water by using the sealing pressure-bearing plug, so that the prefabricated lining PE pipe compressed into the concave shape breaks an industrial adhesive tape under the action of internal pressure and self elasticity and is gradually restored into a PE100 lining pipe with a circular section;
seventhly, in the rebound process, installing silica gel gaskets at the positions where the two ends of the PE100 lining pipe are aligned with the ports of the cement drain pipe, wherein the thickness of each silica gel gasket is larger than the gap between the PE100 lining pipe and the cement drain pipe, and when the PE100 lining pipe is restored to be in a circular section, the silica gel gaskets are extruded between the PE100 lining pipe and the cement drain pipe to seal the gap between the PE100 lining pipe and the ports of the cement drain pipe;
eighthly, removing the sealing plugs after the PE100 lining pipe is completely restored to be circular in cross section, trimming two ports of the PE100 lining pipe, mounting circle supporting inner sleeves at the two port parts of the PE pipe, and fixing the circle supporting inner sleeves, the PE100 lining pipe, the silica gel gasket and the cement drain pipe by fastening screws; and then, after the PE 100-grade modified lining pipe is installed and accepted through a water test, restoring the well mouths at two ends of the repaired underground cement drain pipe according to a conventional method, namely completing the leakage repairing work of the underground cement drain pipe.
Interior bushing pipe pressing equipment constitute its characterized in that by frame, pressure disk assembly, last beam mechanism, bundle mechanism, direction compression rod group and supporting mechanism: the bottom of the frame is provided with supporting mechanisms at intervals, the upper part of the frame between the supporting mechanisms is provided with a pressure plate group, the frame at the two sides of the pressure plate group is internally provided with a guide compression rod group, the two ends of the frame are provided with a pressure shaft mechanism, and the outer side of the pressure shaft mechanism at the outlet end of the frame is provided with a bundling mechanism.
The pressure disk assembly comprises a pre-pressing disk, an initial pressing disk, a transition disk and a forming disk, wherein the pre-pressing disk, the initial pressing disk, the transition disk and the forming disk are sequentially arranged on the upper portion of the frame from left to right, the diameters of the pre-pressing disk, the initial pressing disk, the transition disk and the forming disk of the pressure disk assembly are sequentially increased from left to right, and the diameters of the pre-pressing disk, the initial pressing disk, the transition disk and the forming disk are fixed on the frame through a disk shaft and a bearing and can freely rotate on the frame.
The two shaft pressing mechanisms are respectively arranged at an inlet and an outlet at the left end and the right end of the rack, each shaft pressing mechanism consists of a pressing shaft, an adjusting plate, a screw, an installation seat, a screw cap, a limiting gear and a rack, the pressing shafts are horizontally arranged, the limiting gears are respectively fixedly arranged at the two ends of the pressing shafts, and the limiting gears are meshed with the racks arranged on the rack; two ends of the pressing shaft are respectively arranged on the adjusting plate and can rotate around the adjusting plate, and the pressing shaft is provided with a pressing roller capable of freely rotating; a screw rod is fixedly connected below the adjusting plate, the lower end of the screw rod is inserted into a through hole of an installation seat on the rack, and the screw rod is fixed through nuts above and below the installation seat.
The bundling mechanism comprises a driving motor, a driving wheel, a driven wheel, an assembly disc, bundling wheels and a belt, wherein the assembly disc is fixedly arranged at an outlet at the right end of the rack, the driven wheel is sleeved on the assembly disc, the plurality of bundling wheels are arranged on the outer surface of one side of the driven wheel through an assembly shaft, the driving motor is fixedly arranged on the rack above the assembly disc through a motor mounting seat, the driving wheel is arranged on a transmission shaft of the driving motor, and the driving wheel is connected with the driven wheel through the belt.
The guide compression rod group consists of at least two guide compression rod units, each guide compression rod unit consists of two double-head screws, two compression rods, an assembly seat, a nut, a chain and a compression gear, the two double-head screws are respectively and horizontally arranged at the upper part and the lower part in the rack through the assembly seats, the compression gear is respectively and fixedly arranged at one end of each double-head screw, and the chain is arranged between the two compression gears; the two ends of the double-threaded screw are respectively provided with a positive thread and a negative thread, a compression rod is respectively arranged between the two ends of the two double-threaded screws, and the two ends of the compression rod are in threaded connection with the positive thread and the negative thread of the double-threaded screw through nuts.
The supporting mechanism is composed of a plurality of supporting frames, each supporting frame is composed of a supporting seat, a supporting rod and a roller, and the supporting frames are uniformly distributed between an inlet and an outlet at the bottom of the rack; the supporting seats of each supporting frame are fixedly arranged on two sides and the middle of the bottom of the rack, the supporting seat in the middle is lower than the supporting seats on the two sides, one ends of the two supporting rods are fixedly connected with the supporting seats on the two sides respectively, the other ends of the two supporting rods are connected with the supporting seat in the middle, the two supporting rods are V-shaped after being installed, and rollers are movably sleeved on the supporting rods.
The traction head is in a conical shape, the large-diameter end of the traction head is an opening end, the small-diameter end of the traction head is a closed end, the large-diameter end of the traction head is consistent with the cross-sectional shape of the PE100 concave pipe, a section of horizontal concave structure is manufactured at the port of the large-diameter end of the traction head, the connecting hole b is manufactured on the horizontal concave structure, the horizontal concave structure is 2-5 mm larger than the pipe opening of the PE100 concave pipe, and the traction head is sleeved on the outer surface of the end of the PE100 concave pipe through the horizontal concave structure.
And hoisting rings are symmetrically arranged on the outer side of the rack. The machine frame on one side of the bundling mechanism is provided with a switch group, and the switch group is electrically connected with a driving motor of the bundling mechanism. The inner sleeve of the circle brace is made of a stainless steel sheet. The industrial tape can also be replaced by a metal binding wire or other binding tapes.
Compared with the prior art, the invention has the beneficial effects that:
according to the method for repairing the leakage of the cement drain pipe by using the PE 100-grade modified concave lining pipe, the circular PE100 lining pipe is firstly pressed into the concave pipe, so that the lining pipe is conveniently and quickly pulled when entering the cement drain pipe, and after the pulling is finished, the concave pipe is inflated to restore the circular pipe, so that a small gap is ensured between the lining pipe and the cement drain pipe; the problem of current when installing lining PE pipe additional in the cement drainage pipe in order to reduce to pull the degree of difficulty, it is a lot less than the cement drainage pipe internal diameter to do the diameter of lining PE pipe, make and leave great clearance between the surface of lining PE pipe and the cement drainage pipe inner wall, lining PE pipe can appear deadweight, under the condition that intraductal sewage and cement drainage pipe take place to break and collapse, the arc that low two-end height in the middle of forming warp, make lining PE mouth of pipe and cement drainage mouth of pipe split lead to sewage to flow into between lining PE outside of tubes surface and the cement drainage pipe inner wall and can't thoroughly solve the pipeline seepage is solved.
Drawings
FIG. 1 is a schematic front view of a lining pipe pressing apparatus according to the present invention;
fig. 2 is a schematic view showing the construction of a guide compression bar unit of the lining pipe pressing apparatus of the present invention;
FIG. 3 is a schematic structural view of a binding mechanism of the lining pipe pressing apparatus according to the present invention;
FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
FIG. 5 is a schematic structural view of a shaft pressing mechanism of the lining pipe pressing apparatus according to the present invention;
FIG. 6 is a schematic view of a PE100 prefabricated liner pipe pressed into a concave section and wrapped with an industrial adhesive tape;
FIG. 7 is a schematic view of the structure of the traction head of the present invention;
FIG. 8 is a schematic structural view of a prefabricated lining PE pipe for an underground cement drainage pipe;
FIG. 9 is a schematic structural view of the PE100 circular pipe, the silica gel washer, the inner sleeve of the support circle and the cement drain pipe after being installed;
FIG. 10 is a side view of the structure of FIG. 9;
FIG. 11 is a schematic structural diagram of the inner sleeve of the ring support of the present invention.
In the figure: 1. a frame; 101. hoisting a ring; 102. a switch group;
2. a pressure plate group; 201. pre-pressing a disc; 202. a starting platen; 203. a transition disk; 204. forming a disc;
3. a shaft pressing mechanism; 301. pressing the shaft; 302. a compression roller; 303. an adjusting plate; 304. a screw; 305. a mounting seat; 306. a nut; 307. a limit gear; 308. a rack;
4. a bundling mechanism; 401. a driving wheel; 402. a driven wheel; 403. assembling a disc; 404. a bundling wheel; 405. a belt; 406. a drive motor;
5. guiding the compression rod set; 501. a double-ended screw; 502. a compression rod; 503. assembling a seat; 504. a nut; 505. a chain; 506. compressing the gear; 507. a positive thread; 508. reverse threads;
6. a support mechanism; 601. a supporting seat; 602. a support bar; 603. a roller;
7. PE100 prefabricated lining pipe with a concave section; 701. a PE100 concave pipe; 702. industrial adhesive tapes; 703. a connecting hole a;
8. a traction head; 801. a connecting hole b; 802. a drawing hole; 803. a bolt;
9. PE100 grade modified inner lining pipe; 901. a cement drain pipe; 902. a PE100 liner pipe; 903. a silica gel gasket; 904. supporting a round inner sleeve; 905. fastening screws; 906. a conical surface.
Detailed Description
The method for repairing the leakage of the cement drain pipe by using the PE100 grade modified O-concave O-lining pipe comprises the following steps:
the method comprises the steps of firstly, determining a repair area of the pipeline, surveying the inner diameter size, the length size and the site construction conditions of the pipeline to be repaired on site, evaluating and making a construction scheme, manufacturing a PE100 lining pipe 902 with the diameter close to the inner diameter of a cement drainage pipe 901 according to survey size data, and transporting the PE100 lining pipe 902, construction equipment and auxiliary tools to a construction site.
And secondly, plugging the upstream and downstream of the cement drain pipe 901 to be repaired, stopping discharging sewage into the cement drain pipe 901 to be repaired, and cleaning the cement drain pipe 901 to be repaired by adopting a high-pressure water washing mode, so that residual sewage in the cement drain pipe 901 to be repaired is discharged, and no sediment is left on the inner wall.
Thirdly, performing hot-melt welding on the PE100 lining pipe 902 on a construction site and trimming the interface, wherein the hot-melt welded PE100 lining pipe 902 is 4-6 meters longer than the cement drain pipe 901 to be repaired, so that two ends of the PE100 lining pipe can extend out of the ground after installation; the PE100 lining pipe 902 subjected to hot-melt welding is conveyed to a lining pipe pressing device to be pressed, meanwhile, a light winch (the light winch is JMT 5) and a heavy winch (the heavy winch is JMT 40) are respectively conveyed to two ends of the cement drain pipe 901 to be repaired, and the lining pipe pressing device and the light winch are placed at the same end of the cement drain pipe 901 to be repaired.
Fourthly, pressing the PE100 lining pipe 902 with the circular cross section into a PE100 concave pipe 701 through lining pipe pressing equipment, manufacturing a connecting hole a703 at one end of the PE100 concave pipe 701, and spirally winding an industrial adhesive tape 702 on the surface of the PE100 concave pipe 701 to manufacture a PE100 prefabricated lining pipe 7 with the concave cross section; sleeving a traction head 8 with a connecting hole b801 on the end of a PE100 prefabricated lining pipe 7 with a concave section, and solidifying the traction head 8 and the PE100 prefabricated lining pipe 7 with the concave section through the connecting hole b801 and a bolt 803 to manufacture a prefabricated lining PE pipe of the underground cement drainage pipe 901;
in the process that the PE100 lining pipe 902 with the circular cross section passes through the pre-pressing disc 201, the top of the PE100 lining pipe 902 with the circular cross section is pressed by the pre-pressing disc 201, so that the top of the PE100 lining pipe 902 with the circular cross section generates small deformation, then when the PE100 lining pipe 902 passes through the pressing shaft mechanism 3 on one side of the pre-pressing disc 201, the top of the PE100 lining pipe 902 with the small deformation is vertically pressed downwards, the cross section of the PE100 lining pipe 902 is changed from circular to elliptical, the purpose is to increase the contact surface of the top end of the PE100 lining pipe 902, and the pressing process of the initial pressing disc 202 and the transition disc 203 is smoother. When the liner pipe 902 of the PE100 moves along with the movement of the liner pipe 902 of the PE100, and the liner pipe 902 of the PE100 moves to the positions of the start-pressure disc 202 and the transition disc 203, the top of the liner pipe 902 of the PE100 gradually generates large deformation under the pressing action of the start-pressure disc 202 and the transition disc 203, the top of the liner pipe 902 of the PE100 is recessed downward, and meanwhile, the guide compression rod group 5 compresses the pipe walls at the two sides of the liner pipe 902 of the PE100 towards the middle, so that the inner diameter of the liner pipe 902 of the PE100 is reduced.
And fifthly, enabling a steel wire rope of the light winch to penetrate from the end of the underground cement drain pipe 901 at the placement position to the other end, driving the steel wire rope of the heavy winch at the other end to penetrate through the cement drain pipe 901 to be repaired by using the steel wire rope of the light winch, pulling the steel wire rope of the heavy winch to the end of the light winch, connecting the steel wire rope of the heavy winch with a pulling hole 802 on a traction head 8 of the prefabricated lining PE pipe of the underground cement drain pipe, and enabling the prefabricated lining PE pipe of the underground cement drain pipe to penetrate through the cement drain pipe 901 to be repaired by pulling the heavy winch.
Sixthly, after the prefabricated lining PE pipe is dragged into the cement drain pipe 901, two ends of the prefabricated lining PE pipe are respectively 2-3 meters longer than the cement drain pipe 901 to be repaired and are tilted up to the ground; after the drawing head 8 is removed, two ends of the prefabricated lining PE pipe are rounded, the two ends of the prefabricated lining PE pipe are welded and sealed through the sealing pressure-bearing plugs, and then the sealed prefabricated lining PE pipe is inflated or filled with water through the sealing pressure-bearing plugs, so that the PE100 prefabricated lining pipe 7 compressed into the concave cross section breaks the industrial adhesive tape 702 under the action of internal pressure and elasticity and gradually recovers to the PE100 lining pipe 902 with the circular cross section.
And in the seventh step, in the rebound process, installing silicone gaskets 903 at the positions where the two ends of the PE100 lining pipe 902 are aligned with the ports of the cement drainage pipe 901, wherein the thickness of the silicone gaskets 903 is larger than the gap between the PE100 lining pipe 902 and the cement drainage pipe 901, and when the PE100 lining pipe 902 is restored to the circular section, the silicone gaskets 903 are squeezed between the PE100 lining pipe 902 and the cement drainage pipe 901 to seal the gap between the PE100 lining pipe 902 and the ports of the cement drainage pipe 901.
Eighthly, after the PE100 lining pipe 902 is completely restored to be circular in cross section, removing the sealing plug, trimming two ports of the PE100 lining pipe 902, installing a circle supporting inner sleeve 904 at the two port parts of the PE100 lining pipe 902, and fixing the circle supporting inner sleeve 904, the PE100 lining pipe 902, a silica gel gasket 903 and the cement drain pipe 901 by using fastening screws 905; so far, the installation of the PE 100-grade modified lining pipe 9 is completed, and after the water passing test of the PE 100-grade modified lining pipe 9 is accepted, the well mouths at the two ends of the repaired underground cement drain pipe 901 are restored according to a conventional method, that is, the leakage repairing work of the underground cement drain pipe 901 is completed.
The invention relates to a method for repairing leakage of a cement drain pipe by using a PE 100-grade modified O-concave O lining pipe, wherein the PE 100-grade modified O-concave O lining pipe is published on 18.04.2021 and implemented on 01.05.1.1 according to the name published in the Hubei national non-plastic industry Limited company enterprise standard Q/HBJF 01-2021, and the detailed contents and record and publication conditions of the enterprise standard are shown as an attachment I and an attachment II of other certification documents.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (3)
1. A method for repairing the leakage of a cement drain pipe by using a PE100 grade modified O-concave O-lining pipe is characterized in that: it comprises the following steps:
firstly, determining a repair area of a pipeline, surveying the inner diameter size, the length size and the site construction conditions of the pipeline to be repaired on site, evaluating and making a construction scheme, manufacturing a PE100 lining pipe (902) with the diameter close to the inner diameter of a cement drainage pipe (901) according to survey size data, and transporting the PE100 lining pipe (902), construction equipment and auxiliary tools to a construction site;
secondly, plugging the upstream and downstream of the cement drain pipe (901) to be repaired, stopping discharging sewage into the cement drain pipe (901) to be repaired, and cleaning the cement drain pipe (901) to be repaired by adopting a high-pressure water washing mode to discharge residual sewage in the cement drain pipe (901) to be repaired without sediment on the inner wall;
thirdly, carrying out hot-melt welding on the PE100 lining pipe (902) and trimming the interface, wherein the PE100 lining pipe (902) after hot-melt welding is 4-6 m longer than the cement drain pipe (901) to be repaired, conveying the PE100 lining pipe (902) after hot-melt welding to lining pipe pressing equipment for pressing, and simultaneously conveying a light winch and a heavy winch to two ends of the cement drain pipe (901) to be repaired respectively, wherein the lining pipe pressing equipment and the light winch are placed at the same end of the cement drain pipe (901) to be repaired;
fourthly, pressing the PE100 lining pipe (902) with the circular cross section into a PE100 concave pipe (701) through lining pipe pressing equipment, manufacturing a connecting hole a (703) at one end of the PE100 concave pipe (701), and spirally winding an industrial adhesive tape (702) on the surface of the PE100 concave pipe (701) to manufacture a PE100 prefabricated lining pipe (7) with a concave cross section; sleeving a traction head (8) with a connecting hole b (801) on the end of a PE100 prefabricated lining pipe (7) with a concave section, and solidifying the traction head (8) and the PE100 prefabricated lining pipe (7) with the concave section through the connecting hole b (801) and a bolt (803) to manufacture a prefabricated lining PE pipe of the underground cement drainage pipe (901);
fifthly, enabling a steel wire rope of a light winch to penetrate to the other end from the end of an underground cement drainage pipe (901) at the placement position, driving the steel wire rope of a heavy winch at the other end to penetrate through the cement drainage pipe (901) to be repaired by using the steel wire rope of the light winch, pulling the steel wire rope of the heavy winch to the end of the light winch, connecting the steel wire rope of the heavy winch with a pulling hole (802) in a pulling head (8) of a prefabricated lining PE pipe of the underground cement drainage pipe, and enabling the prefabricated lining PE pipe of the underground cement drainage pipe to penetrate through the cement drainage pipe (901) to be repaired by pulling of the heavy winch;
sixthly, after the prefabricated lining PE pipe is dragged into the cement drainage pipe (901), two ends of the prefabricated lining PE pipe are respectively 2-3 meters longer than the cement drainage pipe (901) to be repaired and are tilted up to the ground; after a traction head (8) is removed, two ends of the prefabricated lining PE pipe are rounded, the two ends of the prefabricated lining PE pipe are welded and sealed through a sealing pressure-bearing plug, and then the sealed prefabricated lining PE pipe is inflated or filled with water through the sealing pressure-bearing plug, so that the prefabricated lining PE pipe compressed into a concave shape breaks an industrial adhesive tape (702) under the action of internal pressure and self elasticity and gradually recovers to a PE100 lining pipe (902) with a circular section;
seventhly, in the rebound process, installing silica gel gaskets (903) at the positions, aligned with the ports of the cement drainage pipe (901), of two ends of the PE100 lining pipe (902), wherein the thickness of each silica gel gasket (903) is larger than the gap between the PE100 lining pipe (902) and the cement drainage pipe (901), and when the PE100 lining pipe (902) is restored to be in a circular section, the silica gel gaskets (903) are squeezed between the PE100 lining pipe (902) and the cement drainage pipe (901) to seal the gap between the ports of the PE100 lining pipe (902) and the cement drainage pipe (901);
eighthly, after the PE100 lining pipe (902) is completely restored to be circular in cross section, removing the sealing plug, trimming two ports of the PE100 lining pipe (902), installing a circle supporting inner sleeve (904) at the two ports of the PE pipe, and fixing the circle supporting inner sleeve (904), the PE100 lining pipe (902), a silica gel washer (903) and a cement drain pipe (901) by fastening screws (905); and the PE 100-grade modified lining pipe (9) is installed, after the PE 100-grade modified lining pipe (9) is tested and accepted through water, the well mouths at two ends of the repaired underground cement drainage pipe (901) are restored according to a conventional method, and then the leakage repairing work of the underground cement drainage pipe (901) is completed.
2. The method for repairing the leakage of the cement drain pipe by using the PE100 grade modified O-concave O-lining pipe as claimed in claim 1, wherein: interior bushing pipe pressing equipment constitute its characterized in that by frame (1), pressure disk assembly (2), last axial region mechanism (3), bundle mechanism (4), direction compression lever group (5) and supporting mechanism (6): the bottom of the frame (1) is provided with support mechanisms (6) at intervals, the upper part of the frame (1) between the support mechanisms (6) is provided with a pressure plate group (2), guide compression rod groups (5) are arranged in the frame (1) at two sides of the pressure plate group (2), two ends of the frame (1) are provided with a pressure shaft mechanism (3), and the outer side of the pressure shaft mechanism (3) at the outlet end of the frame (1) is provided with a bundling mechanism (4);
the pressing disc group (2) is composed of a pre-pressing disc (201), a starting pressing disc (202), a transition disc (203) and a forming disc (204), the pre-pressing disc (201), the starting pressing disc (202), the transition disc (203) and the forming disc (204) are sequentially installed on the upper portion of the rack (1) from left to right, the diameters of the pre-pressing disc (201), the starting pressing disc (202), the transition disc (203) and the forming disc (204) of the pressing disc group (2) are sequentially increased from left to right, the diameters of the pre-pressing disc (201), the starting pressing disc (202), the transition disc (203) and the forming disc (204) are fixed on the rack (1) through a disc shaft and a bearing, and the pressing disc group can freely rotate on the rack (1);
the two shaft pressing mechanisms (3) are respectively installed at an inlet and an outlet at the left end and the right end of the rack (1), each shaft pressing mechanism (3) is composed of a pressing shaft (301), an adjusting plate (303), a screw rod (304), an installation seat (305), a screw cap (306), a limiting gear (307) and a rack (308), the pressing shaft (301) is horizontally arranged, the limiting gears (307) are respectively and fixedly installed at the two ends of the pressing shaft (301), and the limiting gears (307) are meshed with the racks (308) installed on the rack (1); two ends of the pressing shaft (301) are respectively arranged on the adjusting plate (303) and can rotate around the adjusting plate (303), and the pressing shaft (301) is provided with a pressing roller (302) which can rotate freely; a screw rod (304) is fixedly connected below the adjusting plate (303), the lower end of the screw rod (304) is inserted into a through hole of an installation seat (305) on the rack (1), and the screw rod (304) is fixed through nuts (306) above and below the installation seat (305);
the bundling mechanism (4) is composed of a driving motor (406), a driving wheel (401), a driven wheel (402), an assembly disc (403), bundling wheels (404) and a belt (405), the assembly disc (403) is fixedly arranged at an outlet at the right end of the rack (1), the driven wheel (402) is sleeved on the assembly disc (403), a plurality of bundling wheels (404) are arranged on the outer surface of one side of the driven wheel (402) through assembly shafts, the driving motor (406) is fixedly arranged on the rack (1) above the assembly disc (403) through a motor mounting seat (305), the driving wheel (401) is arranged on a transmission shaft of the driving motor (406), and the driving wheel (401) is connected with the driven wheel (402) through the belt (405);
the guide compression rod group (5) is composed of at least two guide compression rod units, each guide compression rod unit is composed of two double-headed screws (501), two compression rods (502), an assembly seat (503), a nut (504), a chain (505) and a compression gear (506), the two double-headed screws (501) are respectively and horizontally arranged at the upper part and the lower part in the rack (1) through the assembly seats (503), the compression gear (506) is respectively and fixedly arranged at one end of each of the two double-headed screws (501), and the chain (505) is arranged between the two compression gears (506); both ends of the double-head screw (501) are respectively provided with a positive thread (507) and a negative thread (508), a compression rod (502) is respectively arranged between both ends of the two double-head screws (501), and both ends of the compression rod (502) are in threaded connection with the positive thread (507) and the negative thread (508) of the double-head screw (501) through nuts (504);
the supporting mechanism (6) is composed of a plurality of supporting frames, each supporting frame is composed of a supporting seat (601), a supporting rod (602) and a roller (603), and the supporting frames are uniformly distributed between an inlet and an outlet at the bottom of the rack (1); the supporting seats (601) of each supporting frame are fixedly arranged at two sides and the middle of the bottom of the rack (1), the supporting seat (601) in the middle is lower than the supporting seats (601) at two sides, one end of each supporting rod (602) is fixedly connected with the supporting seats (601) at two sides, the other end of each supporting rod (602) is connected with the supporting seat (601) in the middle, the two supporting rods (602) are V-shaped after being installed, and a roller (603) is movably sleeved on each supporting rod (602);
hoisting rings (101) are symmetrically arranged on the outer side of the rack (1); a switch group (102) is installed on the rack (1) on one side of the bundling mechanism (4), and the switch group (102) is electrically connected with a driving motor (406) of the bundling mechanism (4).
3. The method for repairing the leakage of the cement drain pipe by using the PE100 grade modified O-concave O-lining pipe as claimed in claim 1, wherein: traction head (8) be the cone shape, the big footpath end of traction head (8) is the open end, the path end of traction head (8) is the blind end, the big footpath end of traction head (8) is unanimous with the cross sectional shape of PE100 concave pipe (701), the port department preparation of the big footpath end of traction head (8) has one section level spill structure, connecting hole b (801) preparation is on level spill structure, level spill structure is 2-5 mm bigger than the mouth of pipe of PE100 concave pipe (701), traction head (8) are through level spill structure suit on the end surface of PE100 concave pipe (701).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110626700.1A CN113202174B (en) | 2021-06-04 | 2021-06-04 | Method for repairing leakage of cement drain pipe by using PE 100-grade modified O-concave O-lining pipe |
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| CN202110626700.1A CN113202174B (en) | 2021-06-04 | 2021-06-04 | Method for repairing leakage of cement drain pipe by using PE 100-grade modified O-concave O-lining pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114193751A (en) * | 2021-11-19 | 2022-03-18 | 安徽优耐德管道技术有限公司 | H-shaped continuous deformation equipment for thermoplastic tubular material and deformation method thereof |
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| CN113202174B (en) | 2022-07-05 |
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