CN217361911U - Cable connection structure for corrosion prevention of water pipe - Google Patents

Abstract

The utility model belongs to the technical field of the water pipe is anticorrosive and specifically relates to a cable junction structure that water pipe is anticorrosive is used is related to, and it is including filling the filling layer that lacks the wound region at the water pipe, the filling layer outside is provided with the coating, the coating encircles at least a week of water pipe. This application has the effect that can play better guard action to cable and metal pipeline's junction.

Description

Cable connection structure for corrosion prevention of water pipe

Technical Field

The invention relates to the field of corrosion prevention of water pipes, in particular to a cable connection structure for corrosion prevention of a water pipe.

Background

When the metal pipeline is buried underground, the pipeline needs to be subjected to anticorrosion treatment; the sacrificial anode protection method is a common metal corrosion prevention method, and is characterized in that metal with strong reducibility is connected with a pipeline through a conductive medium to form a primary battery, the metal with strong reducibility is an anode, protected metal is a cathode, electrons on the anode continuously flow to the cathode, and the cathode metal is protected by the electrons, so that the corrosion speed of the pipeline is reduced; the sacrificial anode material used for corrosion protection of underground pipelines is usually magnesium alloy.

When adopting sacrificial anode protection method to carry out pipeline corrosion prevention construction, carry out the electrically conductive connection through the cable between anode metal and the pipeline usually, because the pipeline outside cladding one deck anticorrosive coating usually, need get rid of local anticorrosive coating so that the cable is direct and the metal pipeline welding, this just leads to the pipeline to appear lacking the wound in cable junction, can't play better guard action to the pipeline, also can't guarantee the insulating nature of cable and external environment simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to play better guard action to cable and metal pipeline's junction, this application provides a cable junction structure that water pipe anticorrosion was used.

The application provides a cable junction structure of anticorrosive usefulness of water pipe adopts following technical scheme:

the utility model provides a cable junction structure of anticorrosive usefulness of water pipe, is including filling at the regional filling layer of water pipe lack of damage, the filling layer outside is provided with the coating, the coating encircles at least a week of water pipe.

By adopting the technical scheme, the filling layer can fill the defect area to prevent the defect area from being directly exposed outside, and meanwhile, the connecting point of the cable on the water pipe can be fixed to reduce the possibility that the connecting point of the cable is loosened under external tension; in addition, the coating cladding is in the filling layer outside and encircle the water pipe at least a week, can play further sealed effect outside lacking the wound.

Optionally, a damage repairing layer is arranged between the filling layer and the coating layer.

Through adopting above-mentioned technical scheme, the mending layer can form continuous anticorrosive structure with the water pipe anticorrosive coating to improve the integrality of water pipe anticorrosive coating, thereby improve the anticorrosive effect of water pipe.

Optionally, an annular band for limiting the position of the cable is arranged outside the water pipe.

Through adopting above-mentioned technical scheme, after lacking the regional processing of hindering and accomplishing, need keep away from the one end of water pipe to the cable and connect, need carry out temporary fixation to the position of cable this moment to reduce the production of the chaotic phenomenon of cable winding, can realize the temporary fixation to the cable position through the girdle.

Optionally, the number of the annular bands is at least two, and the cable between two adjacent annular bands is a slack section which is arranged in a curve.

Through adopting above-mentioned technical scheme, because when connecting the cable, the cable receives the pulling force effect very easily, through setting up lax section, the cable is kept away from the one end that lacks the wound region and is received the pulling force and can pull out partly with lax section, can reduce the cable and tighten and lead to the possibility that the cable damage phenomenon takes place.

Optionally, the cover is made of heat shrinkable tape.

Through adopting above-mentioned technical scheme, twine the coating on the water pipe to heating can make the cladding of coating inseparable in the water pipe outside, the leakproofness is better.

Optionally, a reinforcing layer is arranged outside the coating layer.

Through adopting above-mentioned technical scheme, the reinforcing layer can further improve the protective power to lacking the wound area.

Optionally, the filling layer forms a protrusion in the damaged area, and the reinforcing layer includes a protection portion covering the protrusion and a fixing portion for tightly attaching the protection portion to the coating layer.

Through adopting above-mentioned technical scheme, the protection part cover is established and is being lacked the wound area and can be further protected lacking the wound area, and the fixed part can be adorned protection part on the water pipe to make protection part and coating layer close adhesion, thereby increase the power of being connected between coating and the water pipe, make the leakproofness between coating and the water pipe better.

Optionally, the fixing portion is provided with a yielding groove for the cable to pass through.

Through adopting above-mentioned technical scheme, when installing the back up coat, can make the cable be located the inslot of stepping down, can reduce the possibility of the too big damage cable of pressure between back up coat and the water pipe.

Drawings

Fig. 1 is an overall cross-sectional view of a cable connection structure for corrosion prevention of a water pipe according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view at a in fig. 1.

Fig. 3 is a schematic structural diagram illustrating a slack section in the embodiment of the present application.

Fig. 4 is a schematic structural view illustrating a lock bolt in the embodiment of the present application.

Description of reference numerals: 1. a water pipe; 11. an anticorrosive layer; 111. a notched area; 2. a cable; 21. a relaxation section; 3. a filling layer; 4. repairing the damaged layer; 5. a coating layer; 6. a reinforcement layer; 61. a protection part; 611. a yielding groove; 62. a fixed part; 63. a buffer ring; 64. locking the bolt; 7. an endless belt.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses cable connection structure that anticorrosive usefulness of water pipe. Referring to fig. 1 and 2, the cable connection structure that the water pipe was anticorrosive used includes by interior and filling layer 3, mend layer 4 and coating 5 that set gradually outward, can repair the scarce wound area on the water pipe 1, plays better insulating effect between the tie point of cable 2 on the water pipe 1 and external environment to play better guard action to metal pipeline.

Referring to fig. 1 and 2, the damaged area of the corrosion protection layer 11 outside the water pipe 1 is rectangular, the cable 2 is provided with one cable, and two connecting lines extend out of the end part of the damaged area, and the two connecting lines are fixed on the damaged area outside the water pipe 1 in a double-point thermite welding manner, so that the water pipe 1 and the cable 2 are in a conductive state.

Referring to fig. 1 and 2, in the embodiment, the material of the filling layer 3 is hot melt adhesive, the repairing layer 4 is a repairing sheet, and the cladding layer 5 is a heat shrinkable tape; the hot melt adhesive is filled in the damaged area after being melted to form a filling layer 3, the thickness of the filling layer 3 is larger than that of the anti-corrosion layer 11, so that a bulge is formed in the damaged area, and the filling layer 3 can fix the position of the welded cable 2 so as to reduce the possibility that the welding point between the cable 2 and the water pipe 1 is loosened when the cable 2 is pulled; the repairing sheet is formed by compounding a radiation cross-linked polyolefin substrate and a special sealing hot melt adhesive coating, is tightly adhered to the outer side of a bulge formed by the hot melt adhesive, and forms a continuous and tight anticorrosion system with the anticorrosion layer 11 on the water pipe 1; the heat-shrinkable tape surrounds the water pipe 1 for at least one circle at the position corresponding to the flaw area, and after the heat-shrinkable tape is subjected to heating treatment, the heat-shrinkable tape is tightly wrapped on the outer side of the water pipe 1, so that the flaw repairing sheet is well fixed.

Referring to fig. 1 and 2, the distance between the filling edge of the filling layer 3 and the edge of the damaged area is not less than 100mm, the wrapping width of the thermal contraction band along the length direction of the water pipe 1 is greater than the width of the damage repairing sheet along the length direction of the water pipe 1, and the distance between the edge of the thermal contraction band and the edge of the damage repairing sheet is not less than 50mm, so that the damaged area is more strictly insulated and waterproof protected.

Referring to fig. 1 and 2, when the diameter of the water pipe 1 is large, the heat shrinkage tape is difficult to be uniformly heated, so that the heat shrinkage tape is not uniformly shrunk, moisture is easy to enter between the heat shrinkage tape and the water pipe 1, so that the adhesive force between the heat shrinkage tape and the water pipe 1 is lost, and therefore: a reinforcing layer 6 is provided outside the heat shrinkable tape, and the reinforcing layer 6 serves to reinforce the position of the heat shrinkable tape to increase the coupling force between the heat shrinkable tape and the water pipe 1.

Referring to fig. 2 and 3, reinforcing layer 6 includes protection portion 61 and fixed part 62, and protection portion 61 matches with bellied shape, and the cover is established in the protruding outside, and the side that protection portion 61 and coating 5 contact is provided with buffering circle 63, and buffering circle 63 is made by corrosion-resistant rubber, and buffering circle 63 encircles protruding a week to make protection portion 61's border position closely laminate with coating 5, play better sealed effect. The number of the fixing parts 62 is two, the fixing parts are respectively welded and fixed on two sides of the protection part 61 along the length direction of the water pipe 1, the fixing parts 62 are in an open ring shape, locking bolts 64 are arranged at the openings, two open ends of the fixing parts 62 can be mutually connected through the locking bolts 64, and the locking bolts 64 are far away from the protection part 61; the two fixing portions 62 are sleeved on the water pipe 1, the two ends of the two fixing portions 62 are connected with each other through the locking bolts 64, the protection portion 61 can be fixedly installed on the water pipe 1, and the buffer ring 63 is tightly attached to the coating layer 5.

Referring to fig. 2 and 3, the reinforcing layer 6 may be made of a metal material, and a corrosion-resistant layer 11 is coated on the metal surface; in order to facilitate the outward extension of the cable 2, the protection layer and the fixing portion 62 are both provided with a yielding groove 611 for the cable 2 to pass through, so that the possibility that the cable 2 is crushed by the reinforcing layer 6 is reduced, and meanwhile, the position of the cable 2 can be further fixed.

Referring to fig. 1 and 4, after the welding of the cable 2 on the water pipe 1 is completed, the cable 2 needs to be connected subsequently, so that the position of the cable 2 needs to be fixed temporarily to reduce the possibility of damage caused by pulling the cable 2, and therefore: an annular belt 7 for limiting the cable 2 is wound on the water pipe 1, and the annular belt 7 is formed by winding a sealing adhesive tape around the water pipe 1 in the embodiment; the two annular belts 7 are arranged, the cable 2 between the two annular belts 7 is a slack section 21, the cable 2 of the slack section 21 is in a slack state, so that a curve state is formed, and when one end, far away from the defect area, of the cable 2 is pulled, the cable 2 of the slack section 21 is pulled out, so that the possibility that the welding position of the cable 2 and the water pipe 1 directly bears the pulling force is reduced. In particular, the slack length 21 may be provided in a curved shape of "8", "U", etc., so as to leave a margin for the elongation of the cable 2 between the two endless belts 7.

The implementation principle of the cable connection structure for corrosion prevention of the water pipe in the embodiment of the application is as follows: through lack hinder regional by interior and set up filling layer 3 outward, mend and hinder layer 4, coating 5 and back up coat 6, filling layer 3 can be fixed carrying out cable 2 and water pipe 1's junction, mend and hinder 11 formation continuous anticorrosive structure of layer 4 and water pipe 1's anticorrosive coating, coating 5 cladding is in the layer 4 and the 3 outsides of filling of mending, can improve ageing-resistant ability, back up coat 6 can improve coating 5 and water pipe 1's engaging force, through above-mentioned multilayer protective layer, can carry out better filling effect to lacking the district, thereby make cable 2 and water pipe 1's junction connect more firmly, insulating nature, the leakproofness is better.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a cable junction structure of anticorrosive usefulness of water pipe which characterized in that: including filling at regional filling layer (3) of lacking in water pipe (1), the filling layer (3) outside is provided with coating (5), coating (5) encircle water pipe (1) at least a week.

2. The cable connection structure for corrosion prevention of a water pipe according to claim 1, characterized in that: and a repairing layer (4) is arranged between the filling layer (3) and the coating layer (5).

3. The cable connection structure for corrosion prevention of a water pipe according to claim 1, characterized in that: an annular belt (7) used for limiting the position of the cable (2) is arranged on the outer side of the water pipe (1).

4. The cable connection structure for corrosion prevention of a water pipe according to claim 3, characterized in that: the cable (2) between two adjacent annular belts (7) is a slack section (21), and the slack section (21) is arranged in a curve mode.

5. The cable connection structure for corrosion prevention of a water pipe according to claim 1, characterized in that: the covering layer (5) is made of a heat shrinkable tape.

6. The cable connection structure for corrosion prevention of a water pipe according to claim 1 or 2, characterized in that: and a reinforcing layer (6) is arranged on the outer side of the coating layer (5).

7. The cable connection structure for corrosion prevention of a water pipe according to claim 6, characterized in that: the filling layer (3) forms a bulge in the defect area, and the reinforcing layer (6) comprises a protection part (61) covered on the bulge and a fixing part (62) used for enabling the protection part (61) to be tightly attached to the coating layer (5).

8. The cable connection structure for corrosion prevention of a water pipe according to claim 7, characterized in that: the fixing part (62) is provided with a yielding groove (611) for the cable (2) to pass through.

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