CN114673859B - A device and method for repairing a broken water pipe using magnetically concentrated slurry - Google Patents

Abstract

The invention provides a device and a method for repairing a broken water pipe by magnetic convergence slurry, comprising a strong magnet device, wherein the strong magnet device consists of a plurality of electromagnets wound with coils, the electromagnets are connected with a power supply and ensure that a magnetic field is generated in the electromagnets after the electromagnets are electrified, so that the attraction of the magnetic convergence slurry is realized; two adjacent groups of electromagnets are alternately bonded into a discoid structure through telescopic air bags, and common air bags are bonded at the inner ring part of the discoid structure; the telescopic air bag is provided with a small cushion block, and the small cushion block can be provided with a circle of prepared magnetic convergence slurry injection layer in the device after being inflated; the small cushion blocks are provided with different specifications, the size of the needed small cushion blocks can be determined according to the needs, and then the thickness of the repaired magnetic convergence slurry layer is determined. The device used by the method is simple and convenient to operate, quick to repair, small in damage to the wall, low in use cost and capable of effectively solving the problem of water leakage of the broken water pipe, and the device can be recycled.

Description

A device and method for repairing a broken water pipe using magnetically concentrated slurry

Technical field

The invention belongs to the field of repairing broken pipes, and in particular relates to a device and method for repairing broken water pipes with magnetically focused slurry.

Background technique

Currently, when water leaks occur in drainage pipes, the walls and floors near the pipes become wet, and in severe cases, water drips. The reasons for water leakage are generally loose joints, holes in the pipes or fittings, weak foundations of the pipes or too shallow burial depths, which cause the pipes to sink or be crushed, resulting in pipe cracks. In addition, because water pipes have been used for a long time, the water pipes will harden or something will block the joints of the water pipes for a long time, causing rupture and water pipe leakage.

The commonly used repair method at present is to remove the original pipe and lower the elevation. Otherwise, the force can be limited, the load can be reduced or the ground surface layer can be reinforced, and the broken pipe should be replaced with a new one, such as when repairing a broken PVC drain pipe in a bathroom. , you need to first close the main water valve, and then find the location of the leak in the PVC pipe. Use a flashlight to carefully look at the rupture of the PVC pipe, and use a tape measure to measure the size of the rupture. First drain the water from the PVC pipe, and then use a saw blade to cut off the pipe with cracked surfaces, while ensuring that the saw surface is smooth. When replacing pipes, the prepared pipes of the same diameter should be coated with glue, stuck at the interface, and tightened, or connected with hot melt. Not only does this method of pipe replacement cause a lot of damage to the wall when drilling holes, but the diameter of the pipe is large, and the hot-melt connection is more difficult to construct. In addition, the repairs required for pipe replacement are also costly. In view of the various problems existing in the original method, it is hoped to reduce the damage area of the wall, ease the construction difficulty, and reduce the construction cost. Therefore, a device and method for repairing broken water pipes using magnetic convergence slurry are proposed, which can well solve the above problems.

Summary of the invention

The purpose of the present invention is to provide a device and method for repairing broken water pipes using magnetic convergence slurry. The method is mainly aimed at solving the problem of broken drainage pipes. The device used in the method is easy to operate, repairs quickly, and causes little damage to the wall. It can effectively solve the problem of broken water pipe leakage, and has low use cost. The device can be recycled and reused.

In order to achieve the above technical characteristics, the object of the present invention is achieved as follows: a device for repairing broken water pipes by magnetically concentrating slurry, which includes a powerful magnet device. The powerful magnet device is composed of a plurality of electromagnets wound around coils. The electromagnet and the power supply It is connected and ensures that a magnetic field is generated inside it after being energized, thereby attracting the magnetic convergence slurry;

Two adjacent groups of electromagnets are alternately bonded through retractable air bags to form a disc-shaped structure, and an ordinary air bag is bonded to the inner ring of the disc-shaped structure;

The retractable airbag is provided with a small pad which can leave a circle of prepared magnetic convergence slurry injection layer in the device after inflation; the small pad is provided with different specifications, and the required small pad size can be determined as needed, thereby determining the thickness of the repaired magnetic convergence slurry layer.

The magnetic convergence slurry is composed of asphalt, water-based epoxy resin, curing agent, magnetic powder, cement, water, dispersant, defoaming agent and water reducing agent; wherein the water reducing agent is used to improve the strength of the slurry and has a good blocking effect on broken water pipes; the defoaming agent prevents the generation of bubbles in the slurry; the dispersant makes the materials in the mortar evenly dispersed; the water-based epoxy resin makes the magnetic convergence slurry have good fluidity, making it easier for the magnetic convergence slurry to be evenly distributed on the desired rupture surface.

The specific material ratio of the magnetic convergence slurry is: water-cement ratio 0.2-0.4, magnetic powder content 10%-30%, dispersant 5%, defoaming agent 2%, water reducing agent 1%, epoxy resin emulsion: Hardener=1:0.85.

The retractable airbag and the ordinary airbag are respectively provided with an inflation port for inflating them and a deflation port for deflating them; the inflation port is connected to an air source for air supply through an inflation tube; the deflation port is connected to an air source for air supply through an inflation tube; The air port is connected to the outside atmosphere through a deflation pipe; by inflating and deflating the ordinary air bag, the device can be expanded and recovered; by inflating and deflating the retractable air bag, the device can adapt to the requirements of different water pipe specifications.

The method for repairing a broken water pipe by using a device for repairing a broken water pipe by using magnetic converging slurry comprises the following steps:

In view of the small impact of water seepage on the wall, magnetic convergence slurry is injected from the inside of the water pipe for repair. The specific steps are:

Step 1.1: Prepare magnetic convergence slurry;

step1.2: Find the approximate location of the water outlet by drilling appropriate holes at the water seepage points on the wall;

step1.3: Put the powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the approximate location of the water pipe rupture;

step1.4: First use the inflatable tube to inflate the ordinary air bag so that the device expands into the water pipe, and then inflate the retractable air bag so that the small pad on the device is close to the inner wall of the water pipe and stop inflating;

Step 1.5: Turn on the power and inject magnetic convergence slurry into the prepared magnetic convergence slurry injection layer through the grouting equipment. After the magnetic convergence slurry is evenly distributed around the inner wall of the water pipe, stop grouting;

step1.6: After the magnetic convergence slurry solidifies, disconnect the power supply;

step1.7: Move the device up and down appropriately, repeat the above operations, and repair the remaining cracked surfaces;

Step 1.8: After all fracture surfaces are sealed, release the gas in the double-layer air bag through the release tube and recover the device.

The method for repairing a broken water pipe by using a device for repairing a broken water pipe by using magnetic converging slurry comprises the following steps:

In case of severe wall cracks caused by large-scale water seepage, magnetic convergence slurry is injected from the outside of the water pipe for repair. The specific steps are as follows:

step2.1: Configure magnetic convergence slurry;

Step 2.2: Drill holes at the water seepage points on the wall to find the approximate location of the water outlet;

step2.3: Put the powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the approximate location of the water pipe rupture;

Step 2.4: Inflate the airbag in the device through the inflatable tube until the four small pads are close to the inner wall of the water pipe, and then stop inflating;

Step 2.5: Turn on the power supply, slowly inject the configured magnetic convergence slurry from the water outlet position found in the external drilling hole, move the device up and down in the water pipe until the fracture surface is sealed, and then stop grouting;

Step 2.6: Disconnect the power supply, release the gas in the airbag of the device through the vent pipe, and recover the device.

The invention has the following beneficial effects:

1. The self-made magnetic convergence slurry in the present invention is composed of asphalt, water-based epoxy resin, curing agent, magnetic powder, cement, water, dispersant, defoamer and water reducer. The water reducer added can improve the strength of the device and has a good blocking effect on the broken water pipe. The water-based epoxy resin makes the magnetic convergence slurry have good fluidity, so that the magnetic convergence slurry can be easily and evenly distributed on the required rupture surface. At the same time, the cost of the magnetic convergence slurry is not high.

2. Disconnect the power supply and the magnetic field disappears. Using the powerful electromagnet device that is movable in the tube, moving the device up and down can repair the remaining cracks without continuing to drill holes. This expands the repair area of the device and reduces the damage area of the wall.

3. The double-layer airbags of this device are equipped with an inflation and deflation system. Ordinary airbags can expand the device. The retractable airbags can well adapt to the problems of different pipe fittings and specifications, and facilitate the recycling and reuse of the device.

4. Grouting repair from the inner wall of the water pipe can form a circle of protective layer inside the pipe. Repair from the outside of the water pipe can form a circle of sealing layer at the fracture surface. Since the magnetic convergence slurry has good fluidity, a small amount of magnetic convergence The grout will flow into the inside of the wall caused by water seepage and fill up the gaps left by the water leakage in the wall one by one. However, the corresponding required magnetic convergence grout will be slightly more than grouting from the inside. It can be selected flexibly according to the actual situation.

5. Four small pads with different orientations are installed outside the retractable airbag. After the device is expanded, due to the role of the small pads, a preliminary magnetic convergence slurry injection layer is left in the device. At the same time, the small pads are provided with different thicknesses. The thickness of the required magnetic convergence slurry layer can be flexibly selected according to the actual situation. Small spacers can also isolate the unit from the water pipe, thus preventing the unit from being unable to be removed from the water pipe.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Figure 1 is an overall structural diagram of the powerful electromagnet device of the present invention.

Figure 2 is a schematic diagram of the inflation and deflation of the double-layer airbag of the present invention.

Figure 3 is a diagram of the magnetic convergence slurry attachment device after the device is powered on.

Figure 4 shows the repair diagram of the multi-layer magnetic convergence slurry of this device.

In the picture: electromagnet 1, ordinary air bag 2, retractable air bag 3, small cushion block 4, magnetic convergence slurry 8, inflation port 10, deflation port 11.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Example 1:

Referring to Figures 1-4, a device for repairing broken water pipes using magnetic convergence slurry includes a powerful electromagnet device. The powerful electromagnet device is composed of several electromagnets 1 wrapped around coils. The coils are connected to a power source through wires. . By turning on the power supply, the magnetically convergent slurry forms a sealed protective layer on the inner wall of the water pipe and in the gap between the walls under the action of the magnetic field, thereby sealing the rupture surface of the water pipe; by turning off the power supply, the magnetic field is eliminated, so that the device can be easily taken out , convenient for recycling.

Furthermore, the electromagnet 1, the ordinary air bag 2 and the retractable air bag 3 are all bonded with waterproof glue. The ordinary air bag 2 and the retractable air bag 3 are both provided with an inflation port 10 and a deflation port 11, and are connected to each other through a conduit. Externally connected, by inflating and deflating the ordinary air bag 2, the expansion and recycling of the device can be realized; by inflating and deflating the retractable air bag 3, the device can be adapted to the requirements of different water pipe specifications. By adopting the filling and deflating method, the flexibility of use of the device is enhanced.

Furthermore, four small pads 4 with different orientations are bonded to the outside of the retractable airbag 3. After the device is expanded, due to the role of the small pads 4, a preliminary magnetic convergence slurry injection layer is left in the device, and at the same time, the small pads Block 4 is provided with different thicknesses, and the required thickness of the magnetic convergence slurry layer can be flexibly selected according to actual conditions. The small spacer 4 can also separate the device from the water pipe, thereby avoiding the problem that the device cannot be taken out from the water pipe. In addition, a preliminary magnetic convergence slurry injection layer can be formed through the small spacer 4, thereby ensuring that a corresponding slurry sealing layer is formed inside the pipeline during the subsequent repair process.

Through the above device, the principle is: by placing the device at the rupture surface of the water pipe, turning on the power, a magnetic field is formed outside the device, and the injected magnetic convergence slurry is evenly distributed on the inner wall of the water pipe or the wall gap under the action of the magnetic field, achieving the goal of The effect of repairing cracked surfaces of water pipes and walls.

Further, the magnetic convergence slurry 8 is composed of asphalt, water-based epoxy resin, curing agent, magnetic powder, cement, water, dispersant, defoaming agent, and water-reducing agent. The water-reducing agent added can increase the strength of the slurry and has a good sealing effect on broken water pipes. The defoaming agent can prevent the generation of bubbles in the slurry. The dispersant can make the materials in the mortar disperse more evenly. The water-based epoxy resin can The magnetic convergence slurry has good fluidity, making it easy to evenly distribute the magnetic convergence slurry on the desired fracture surface.

Further, the material ratio of the magnetic convergence slurry 8 is: water-cement ratio 0.2-0.4, magnetic powder content 10%-30%, dispersant 5%, defoaming agent 2%, water reducing agent 1%, epoxy Resin emulsion: curing agent = 1:0.85. Through the above-mentioned magnetic convergence slurry 8, rapid agglomeration can be achieved under the action of magnetic force, thereby achieving the effect of quickly repairing pipeline cracks.

Example 2:

When the impact of water seepage on the wall is small, magnetic convergence slurry is injected from inside the water pipe:

Step 1.1, configure magnetic convergence slurry 8;

Step 1.2: Drill appropriate holes at the water seepage points on the wall to find the approximate location of the water outlet;

Step 1.3: Place a powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the approximate location of the water pipe rupture;

Step 1.4, first use the inflation tube to inflate the ordinary airbag 2 so that the device expands into the water pipe, then inflate the retractable airbag 3 so that the small cushion block 4 on the device is close to the inner wall of the water pipe, and stop infusing;

Step 1.5, turn on the power, inject slurry into the prepared magnetic convergence slurry injection layer through the grouting equipment, and stop grouting after the magnetic convergence slurry 8 is evenly distributed around the inner wall of the water pipe;

Step 1.6, after the magnetic convergence slurry 8 solidifies, turn off the power supply;

Step 1.7, move the device up and down appropriately, repeat the above operations to repair the remaining cracked surfaces;

Step 1.8, after all fracture surfaces are sealed, release the gas in the double-layer air bag through the release tube and recover the device;

Example 3:

In the case of severe wall cracking due to large-scale water seepage, magnetic convergence slurry is injected from the outside of the water pipe:

Step 2.1, configure magnetic convergence slurry 8;

Step 2.2: Drill appropriate holes at the water seepage points on the wall to find the approximate location of the water outlet;

Step 2.3: Place a powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the approximate location of the water pipe rupture;

Step 2.4: First inflate the ordinary air bag 2 with an inflatable tube so that the device expands into the water pipe, and then inflate the retractable air bag 3 so that the small pad 4 on the device is close to the inner wall of the water pipe and stop inflating;

Step 2.5, turn on the power, slowly inject the configured magnetic convergence slurry 8 through the grouting equipment from the water outlet position found in the external borehole, and move the device up and down in the water pipe until the crack surface is sealed and the wall gap is sealed. Afterwards, stop grouting;

Step 2.6, disconnect the power supply, release the gas in the double-layer air bag of the device through the air release tube 6, and recover the device.

Claims (2)

1. The device for repairing the broken water pipe by adopting the magnetic convergence slurry comprises a powerful magnet device, wherein the powerful magnet device consists of a plurality of electromagnets (1) wound with coils, the electromagnets (1) are connected with a power supply and ensure that a magnetic field is generated in the electromagnets after the electromagnets are electrified, so that the attraction of the magnetic convergence slurry (8) is realized;

two adjacent groups of electromagnets (1) are alternately bonded into a discoid structure through telescopic air bags (3), and common air bags (2) are bonded at the inner ring part of the discoid structure;

the telescopic airbag (3) is provided with a small cushion block (4), and the small cushion block (4) can be provided with a circle of preparation magnetic convergence slurry injection layer in the device after being inflated; the small cushion block (4) is provided with different specifications, so that the size of the needed small cushion block (4) can be determined according to the requirement, and the thickness of the repaired magnetic convergence slurry layer can be further determined;

the magnetic convergence slurry (8) is prepared from asphalt, waterborne epoxy resin, a curing agent, magnetic powder, cement, water, a dispersing agent, a defoaming agent and a water reducing agent; the water reducer is used for improving the strength of slurry and has a good plugging effect on a broken water pipe; the defoamer prevents the generation of bubbles in the slurry; the dispersing agent enables materials in the mortar to be dispersed uniformly; the aqueous epoxy resin ensures that the magnetic convergence slurry has good fluidity, so that the magnetic convergence slurry (8) is easier to uniformly distribute at the position of the required fracture surface;

the magnetic convergence slurry (8) comprises the following specific materials in proportion: the water cement ratio is 0.2-0.4, the mixing amount of magnetic powder is 10% -30%, the dispersing agent is 5%, the defoaming agent is 2%, the water reducing agent is 1%, and the epoxy resin emulsion: curing agent = 1:0.85;

the telescopic air bag (3) and the common air bag (2) are respectively provided with an inflation port (10) for inflating the telescopic air bag and a deflation port (11) for deflating the telescopic air bag; the air charging port (10) is connected with an air source for supplying air through an air charging pipe; the air release port (11) is communicated with the external atmosphere through an air release pipe; the device is expanded and recovered by inflating and deflating the common air bag (2); the device meets the requirements of different water pipe specifications by inflating and deflating the telescopic air bag (3);

the repairing method comprises the following steps:

aiming at the condition that the influence of water seepage on the wall is small, the magnetic convergence slurry is injected from the inside of the water pipe for repairing, and the concrete steps are as follows:

step 1.1: configuring magnetic convergence slurry (8);

step 1.2: finding out the approximate water outlet point position according to a proper amount of holes at the water seepage point on the wall;

step1.3: placing a powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the position where the water pipe breaks approximately;

step 1.4: firstly, an inflation pipe is used for inflating the common air bag (2) to enable the device to expand into the water pipe, and then the telescopic air bag (3) is inflated to enable a small cushion block (4) on the device to cling to the inner wall of the water pipe, so that the inflation is stopped;

step1.5: switching on a power supply, injecting magnetic convergence slurry (8) into the prepared magnetic convergence slurry injection layer through grouting equipment, and stopping grouting after the magnetic convergence slurry (8) is uniformly distributed on the inner wall of the water pipe for one circle;

step 1.6: after the magnetic convergence slurry (8) is solidified, the power supply is disconnected;

step 1.7: moving the device up and down in proper amount, repeating the operation, and repairing the rest fracture surfaces;

step 1.8: and after the plugging of all the fracture surfaces is completed, the gas in the double-layer air bag is discharged through the gas discharge pipe, and the device is recovered.

2. A method of repairing a water pipe using the apparatus for repairing a broken water pipe using a magnetically concentrated slurry according to claim 1, comprising the steps of:

aiming at the situation that the wall cracks seriously due to large-area water seepage, magnetic convergence slurry is injected from the outside of a water pipe for repairing, and the concrete steps are as follows:

step2.1: configuring magnetic convergence slurry (8);

step2.2: finding out the approximate water outlet point position according to a proper amount of holes at the water seepage point on the wall;

step2.3: placing a powerful electromagnet device from the water pipe inspection port until the powerful electromagnet device moves to the position where the water pipe breaks approximately;

step2.4: inflating the air bag in the device through the inflation tube until the four small cushion blocks (4) cling to the inner wall of the water tube, and stopping inflating;

step2.5: switching on a power supply, slowly injecting the prepared magnetic convergence slurry (8) from the water outlet point position found in the external drilling hole, moving the device up and down in the water pipe until the fracture surface is blocked, and stopping grouting;

step2.6: and the power supply is disconnected, the gas in the air bag of the device is discharged through the air discharge pipe, and the device is recovered.