CN113374976B - Device and method for repairing broken water pipe by adopting magnetic fluid - Google Patents
Device and method for repairing broken water pipe by adopting magnetic fluid Download PDFInfo
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- CN113374976B CN113374976B CN202110496333.8A CN202110496333A CN113374976B CN 113374976 B CN113374976 B CN 113374976B CN 202110496333 A CN202110496333 A CN 202110496333A CN 113374976 B CN113374976 B CN 113374976B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 239000011553 magnetic fluid Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 25
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 17
- 239000004917 carbon fiber Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- 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
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
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- 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
- F16L55/18—Appliances for use in repairing pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a device and a method for repairing a broken water pipe by adopting magnetic fluid, which comprises an electromagnet prefabricating device, wherein the magnetic fluid and a hardening agent are filled in the electromagnet prefabricating device; and a lead is wound outside an iron core of the electromagnet prefabricating device and is connected with a portable power supply through a sliding rheostat. The method is mainly used for the broken water pipe which is exposed outside the ground surface and has great influence on the life of a user in a city, is quick and convenient to operate, can quickly repair the broken water pipe, and does not influence the normal life of the user; the magnetic fluid with better stability is adopted, so that the service life of the repaired water pipe is prolonged better; the device can be recycled after the water pipe is repaired.
Description
Technical Field
The invention relates to a device and a method for repairing a broken water pipe by adopting a magnetic fluid, belongs to the technical field of water pipe repair, and is particularly suitable for repairing a water pipe which cannot be cut off.
Background
Pipeline rehabilitation techniques occur primarily as the urban infrastructure ages, sometimes with the failure of these facilities without any warning. The result of the damage is an interruption of operation, which not only entails a huge economic loss for the pipeline owner, but also a considerable public pressure on the relevant side. The replacement of the water pipe can solve all the problems of the repair segment at one time and is permanent. However, pipe replacement repair also has obvious disadvantages, and the pipeline company must stop production during construction operation, which will have certain influence on downstream users. The replacement of the pipeline is not only expensive, but also brings about environmental and social problems, which are not something of the pipeline owners and users in a certain sense. Busy urban traffic, environmental protection, historic protection, crop and vegetation protection, as well as highway railways and buildings, rivers, etc., require that pipeline owners and government regulators must minimize the damage to the pipeline itself. In addition, the pipe replacement work requires large-scale equipment and excellent welding workers, and is time-consuming.
Therefore, in most cases, pipe replacement is the most costly repair solution and the one that the pipeline company is the least willing to choose. However, when a long distance of pipe needs to be repaired continuously, or when the pipe has a plurality of problems including material, pipe replacement may be the only option. After running for many years, various pipelines are inevitably damaged and leaked due to corrosion, poor running management and other reasons, so that serious economic loss is brought, but the whole pipeline is replaced by a new pipeline, so that the engineering quantity is huge, the cost is high, and the engineering period is long. How to economically, efficiently and quickly recover the safe operation of the pipeline is greatly concerned at home and abroad, so the research on the pipeline repairing technology has very important significance.
Disclosure of Invention
The invention aims to provide a device and a method for repairing a broken water pipe by adopting magnetic fluid, which are quick, simple and convenient to operate, can quickly repair the broken water pipe and cannot influence the normal life of a user, and mainly aim at the broken water pipe which is exposed outside the ground surface and has great influence on the life of the user in a city; the magnetic fluid with better stability is adopted, so that the service life of the repaired water pipe is prolonged better; the device can be recycled after the water pipe is repaired.
In order to achieve the technical features, the invention is realized as follows: a device for repairing a broken water pipe by adopting magnetic fluid comprises an electromagnet prefabricating device, wherein the magnetic fluid and a hardening agent are filled in the electromagnet prefabricating device; and a lead is wound outside an iron core of the electromagnet prefabricating device and is connected with a portable power supply through a sliding rheostat.
The electromagnet prefabricating device is formed by assembling a plurality of same parts, the parts are divided into an upper part and a lower part which are connected by a welding method through the middle part, the upper part is an iron core, the lower part is made of a pole shoe, and each part is in the shape of 1/8 sectors of a circle with the radius of R; the bottom and the top of the pole shoe are respectively provided with a small hole with the radius of r, the edge of a part is provided with a bolt hole, during assembly, a threaded bolt is inserted into the bolt hole and screwed down by a screw, and the size of the assembled device and the size of the rotating device are assembled as required, and the outer side of the assembled device is wound by adhesive tapes to prevent water from flowing out from gaps of the bolt hole.
The middle of the top and the bottom of the part is provided with a hole with the radius of r, the small hole is connected with the inner side of the device, water in the device can be discharged when the water pipe is repaired, and magnetic fluid and a hardening agent can be injected when the water pipe is repaired.
When repairing, the lead is wound on the periphery of the iron core, so that a magnetic field is generated in the device and is uniformly distributed under the action of the pole shoe, then the viscosity of the magnetic fluid is changed by adjusting the sliding rheostat to change the size of the magnetic field by changing the size of the current, the purpose of wrapping the broken water pipe by the magnetic fluid is achieved, and water leakage of the water pipe is prevented.
When the device covers the broken water pipe and the magnetic fluid cannot be injected into the device due to excessive water pressure, the magnetic fluid needs to be injected into the device by using a pressure pump, and the water is discharged from the device by using the characteristic that the magnetic fluid is not mixed with the water.
When the device is installed, the device is firstly connected with the anode and the cathode of a portable power supply, the magnetofluid is injected from a section of small hole, water in the device is discharged at the same time until the water is not discharged, the fractured water pipe is completely covered by the magnetofluid, the magnetofluid is hardened by injecting a hardening agent, and then the device is disassembled and wound with carbon fiber cloth.
The method for repairing the water pipe by adopting the device for repairing the broken water pipe by the magnetofluid comprises the following steps:
pressure against broken water pipe is small:
step1.1: the prepared material is as follows: preparing each part of an electromagnet prefabricating device, magnetic fluid, a sliding rheostat, a hardening agent, a lead and a portable power supply;
step1.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling a complete electromagnet prefabricating device by analogy, and winding a lead for connecting the positive electrode and the negative electrode of a portable power supply on the outer side of the device;
step1.3: magnetic fluid sealing: moving the device to the place where the water pipe is broken, switching on a power switch, adjusting the P of the slide rheostat to the place with the minimum resistance value, then injecting magnetic fluid from the injection hole, and adjusting the resistance value of the slide rheostat according to the requirement to change the sealing effect of the magnetic fluid;
step1.4: solidifying the magnetic fluid: after the magnetic fluid completely covers and seals the broken water pipe, injecting a hardening agent from the injection hole, and solidifying the magnetic fluid after a period of time;
step1.5: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step1.6: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
When the pressure for the broken water pipe is large:
step2.1: the prepared material is as follows: preparing each part of an electromagnet prefabricating device, magnetic fluid, a sliding rheostat, a hardening agent, a lead and a portable power supply;
step2.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling a complete electromagnet prefabricating device by analogy, and winding a lead for connecting the positive electrode and the negative electrode of a portable power supply on the outer side of the device;
step2.3: forming a magnetic fluid sealing ring: switching on a power supply, adjusting the resistance value of the slide rheostat to the maximum value, and injecting magnetic fluid from the injection hole until the magnetic fluid sealing ring is formed;
step2.4: repairing the water pipe: moving the electromagnet prefabricating device with the formed magnetic fluid sealing ring to a place where the water pipe is broken, and if the magnetic fluid sealing ring is broken due to overlarge water pressure, adjusting the position of the sliding rheostat P to change the magnitude of current so as to change the magnitude of a magnetic field, so that the broken water pipe is covered by the magnetic fluid sealing ring;
step2.5: solidifying the magnetic fluid: after the magnetic fluid completely covers and seals the broken water pipe, injecting a hardening agent from the injection hole, and solidifying the magnetic fluid after a period of time;
step2.6: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step2.7: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
The invention has the following beneficial effects:
1. by covering with the device of the invention, water is discharged from both sides, and even if the operator does work to repair the water pipe nearby, the operator is not wetted.
2. The broken water pipe can be repaired only by injecting magnetic fluid after the device is arranged on the broken water pipe, the construction is fast, and the operation is convenient.
3. If the water pipe is broken, the water pipe can be repaired without stopping water, so that the daily life water of residents is not influenced.
4. The electromagnet pre-setting device is a combination of a plurality of parts, can be suitable for water pipes with various sizes and calibers, has universality, and can be used for repairing water pipes with various calibers.
5. After the water pipe is repaired by utilizing the electromagnet prefabricating device, all parts can be detached and recycled, so that the repairing cost is reduced.
6. The magnetic fluid has stable property and longer service life, can keep the characteristics of the magnetic fluid unchanged in the effective service life, is solidified after being sealed, is wound by carbon fiber cloth, and has longer service life.
7. The magnetic fluid has extremely low saturated vapor pressure, does not pollute water when repairing the water pipe, and can effectively avoid external and internal pollution.
8. The slide rheostat is used for adjusting the current in the lead, the strength of a magnetic field in the electromagnet can be controlled, and the situation that the magnetic fluid sealing ring is broken down due to overlarge water pressure can be avoided.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a view showing the structure of an electromagnet prefabricating apparatus according to the present invention.
FIG. 2 is a schematic diagram of the assembly of the parts of the electromagnet prefabricating device.
Fig. 3 is a schematic view of the slide rheostat connection of the present invention.
FIG. 4 is a schematic diagram of the portable power connection of the present invention.
In the figure: the device comprises an electromagnet prefabricating device 1, a magnetic fluid 2, a portable power supply 3, a lead 4, a screw 5, a hardening agent 6, a threaded bolt 8, a sliding rheostat 9 and a bolt hole 10.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-4, a device for repairing a broken water pipe by using a magnetic fluid comprises an electromagnet prefabricating device 1, wherein the magnetic fluid 2 and a hardening agent 6 are filled in the electromagnet prefabricating device 1; and a lead 4 is wound outside an iron core of the electromagnet prefabricating device 1, and the lead 4 is connected with a portable power supply 3 through a sliding rheostat 9. By adopting the device, the caliber of the device can be changed according to the size of the broken water pipe to be repaired, and the aim of repairing the water pipe is achieved by utilizing the magnetic fluid sealing principle.
Furthermore, the electromagnet prefabricating device 1 is formed by assembling a plurality of identical parts, the parts are divided into an upper part and a lower part which are connected by a welding method through the middle part, the upper part is an iron core, the lower part is made of pole shoes, and each part is in the shape of 1/8 sectors of a circle with the radius of R; the bottom and the top of the pole shoe are respectively provided with a small hole with the radius of r, the edge of a part is provided with a bolt hole 10, during assembly, a threaded bolt 8 is inserted into the bolt hole 10 and screwed down by a screw 5, and the assembled device is assembled and rotated according to the size of the device, and the outer side of the assembled device is wound by adhesive tapes to prevent water from flowing out from a gap of the bolt hole 10. The electromagnet prefabricating device 1 can be used for generating electromagnetic force, and further magnetic fluid can carry out magnetic sealing repair on the pipeline.
After a plurality of parts are assembled, a lead with n turns is wound, the resistance value of the slide rheostat is continuously adjusted to change the magnetic field intensity of the electromagnet device, and the field intensity is uniform through the pole shoe.
By adopting the bolt connection mode, the purpose is that a plurality of parts are mutually connected through the bolt, each part can rotate around the bolt, and the purpose of adjusting the caliber size of the device can be achieved due to different numbers of the parts.
Through above-mentioned device, its principle does: after the device is covered at the broken part of the water pipe, magnetic fluid is injected under the action of an initial magnetic field, the current in the lead is changed by continuously changing the resistance value of the slide rheostat, the purpose of changing the size of the magnetic field is achieved, and the magnetic fluid sealing ring is formed to repair the water pipe.
Furthermore, a hole with the radius of r is arranged between the top and the bottom of the part, the small hole is connected with the inner side of the device, water in the device can be discharged when the water pipe is repaired, and the magnetic fluid 2 and the hardening agent 6 can be injected when the water pipe is repaired.
Furthermore, when repairing, the lead 4 is wound on the periphery of the iron core, so that a magnetic field is generated inside the device and is uniformly distributed under the action of the pole shoe, and then the slide rheostat 9 is adjusted to change the viscosity of the magnetic fluid 2 by changing the size of the magnetic field through changing the size of current, so that the purpose of wrapping the broken water pipe by the magnetic fluid 2 is achieved, and water leakage of the water pipe is prevented.
Further, when the device covers the broken water pipe, when the water pressure is too high to inject the magnetic fluid 2 into the device, the magnetic fluid needs to be injected into the device by using a pressure pump, and the water is discharged from the device by using the characteristic that the magnetic fluid 2 is not miscible with the water.
Further, when the device is installed, the device is firstly connected with the anode and the cathode of the portable power supply 3, the magnetofluid 2 is injected from a section of small hole, water in the device is discharged at the same time until the water is not discharged, the fractured water pipe is completely covered by the magnetofluid, the magnetofluid 2 is hardened by injecting the hardening agent 6, and then the device is detached and wound with the carbon fiber cloth. The magnetic fluid is stable in property, and after the hardening agent is added and solidified, the carbon fiber cloth is wound, so that the service life of a repaired part can be effectively prolonged.
Example 2:
the method for repairing the water pipe by adopting the device for repairing the broken water pipe by the magnetofluid comprises the following steps:
pressure against broken water pipe is small:
step1.1: the prepared material is as follows: preparing parts of an electromagnet prefabricating device 1, a magnetic fluid 2, a sliding rheostat 9, a hardening agent 6, a lead 4 and a portable power supply 3;
step1.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling the complete electromagnet prefabricating device 1 by analogy, and winding a lead 4 connected with the anode and the cathode of a portable power supply 3 on the outer side of the device;
step1.3: magnetic fluid sealing: moving the device to the place where the water pipe is broken, switching on a power switch, adjusting the P of the slide rheostat 9 to the place with the minimum resistance value, then injecting the magnetic fluid 2 from the injection hole, and adjusting the resistance value of the slide rheostat 9 according to the requirement to change the sealing effect of the magnetic fluid 2;
step1.4: solidifying the magnetic fluid: after the magnetic fluid 2 completely covers and seals the broken water pipe, injecting a hardening agent 6 from the injection hole, and solidifying the magnetic fluid after a period of time;
step1.5: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step1.6: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
Example 3:
when the pressure for the broken water pipe is large:
step2.1: the prepared material is as follows: preparing parts of an electromagnet prefabricating device 1, a magnetic fluid 2, a sliding rheostat 9, a hardening agent 6, a lead 4 and a portable power supply 3;
step2.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling a complete electromagnet prefabricating device by analogy, and winding a lead for connecting the positive electrode and the negative electrode of a portable power supply on the outer side of the device;
step2.3: forming a magnetic fluid sealing ring: switching on a power supply, adjusting the resistance value of the slide rheostat to the maximum value, and injecting magnetic fluid from the injection hole until the magnetic fluid sealing ring is formed;
step2.4: repairing the water pipe: moving the electromagnet prefabricating device with the formed magnetic fluid sealing ring to a place where the water pipe is broken, and if the magnetic fluid sealing ring is broken due to overlarge water pressure, adjusting the position of the sliding rheostat P to change the magnitude of current so as to change the magnitude of a magnetic field, so that the broken water pipe is covered by the magnetic fluid sealing ring;
step2.5: solidifying the magnetic fluid: after the magnetic fluid completely covers and seals the broken water pipe, injecting a hardening agent from the injection hole, and solidifying the magnetic fluid after a period of time;
step2.6: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step2.7: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
Claims (7)
1. The method for repairing the water pipe by adopting the device for repairing the broken water pipe by adopting the magnetic fluid comprises an electromagnet prefabricating device (1), wherein the magnetic fluid (2) and a hardening agent (6) are filled in the electromagnet prefabricating device (1); a lead (4) is wound outside an iron core of the electromagnet prefabricating device (1), and the lead (4) is connected with a portable power supply (3) through a sliding rheostat (9);
the method for repairing the water pipe is characterized by comprising the following steps of:
pressure against broken water pipe is small:
step1.1: the prepared material is as follows: preparing each part of an electromagnet prefabricating device (1), magnetic fluid (2), a sliding rheostat (9), a hardening agent (6), a lead (4) and a portable power supply (3);
step1.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling a complete electromagnet prefabricating device (1) by analogy, and winding a lead (4) connected with the anode and the cathode of a portable power supply (3) on the outer side of the device;
step1.3: magnetic fluid sealing: moving the device to the place where the water pipe is broken, switching on a power switch, adjusting the P of the slide rheostat (9) to the place with the minimum resistance value, then injecting the magnetic fluid (2) from the injection hole, and adjusting the resistance value of the slide rheostat (9) according to the requirement to change the sealing effect of the magnetic fluid (2);
step1.4: solidifying the magnetic fluid: after the magnetic fluid (2) completely covers and seals the broken water pipe, injecting a hardening agent (6) from the injection hole, and solidifying the magnetic fluid after a period of time;
step1.5: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step1.6: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
2. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to claim 1, wherein the device comprises the following steps: the electromagnet prefabricating device (1) is formed by assembling a plurality of same parts, the parts are divided into an upper part and a lower part which are connected by a welding method through the middle part, the upper part is an iron core, the lower part is made of a pole shoe, and each part is in the shape of 1/8 sectors of a circle with the radius of R; the bottom and the top of the pole shoe are respectively provided with a small hole with the radius of r, the edge of a part is provided with a bolt hole (10), during assembly, a threaded bolt (8) is inserted into the bolt hole (10) and is screwed by a screw (5), and the assembled device is wound by adhesive tapes according to the size of the device to be assembled and rotated, so that water is prevented from flowing out of a gap of the bolt hole (10).
3. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to claim 2, wherein the device comprises the following steps: the middle of the top and the bottom of the part is provided with a hole with the radius of r, the small hole is connected with the inner side of the device, water in the device can be discharged when the water pipe is repaired, and the magnetic fluid (2) and the hardening agent (6) can be injected when the water pipe is repaired.
4. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to claim 1, wherein the device comprises the following steps: when in repair, the lead (4) is wound on the periphery of the iron core, so that a magnetic field is generated inside the device and is uniformly distributed under the action of the pole shoe, and then the viscosity of the magnetic fluid (2) is changed by changing the size of the magnetic field by changing the size of current by adjusting the sliding rheostat (9), so that the purpose of wrapping the magnetic fluid (2) to break the water pipe is achieved, and water leakage of the water pipe is prevented.
5. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to claim 1, wherein the device comprises the following steps: when the device covers a broken water pipe and the magnetic fluid (2) cannot be injected into the device due to excessive water pressure, the magnetic fluid needs to be injected into the device by using a pressure pump, and water is discharged from the device by using the characteristic that the magnetic fluid (2) is not mixed with water.
6. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to claim 1, wherein the device comprises the following steps: when the device is installed, the anode and the cathode of a portable power supply (3) are firstly connected, the magnetofluid (2) is injected from a section of small hole, water in the device is discharged at the same time until the water is not discharged, the fractured water pipe is completely covered by the magnetofluid, the magnetofluid (2) is hardened by injecting a hardening agent (6), and then the device is disassembled and wound with carbon fiber cloth.
7. The method for repairing the water pipe by using the device for repairing the broken water pipe by using the magnetofluid according to any one of claims 1 to 6, characterized by comprising the following steps of:
when the pressure for the broken water pipe is large:
step2.1: the prepared material is as follows: preparing each part of an electromagnet prefabricating device (1), magnetic fluid (2), a sliding rheostat (9), a hardening agent (6), a lead (4) and a portable power supply (3);
step2.2: assembling the device: connecting two parts together by using a bolt according to the size of a broken water pipe at the position where the water pipe does not leak water, assembling a complete electromagnet prefabricating device by analogy, and winding a lead for connecting the positive electrode and the negative electrode of a portable power supply on the outer side of the device;
step2.3: forming a magnetic fluid sealing ring: switching on a power supply, adjusting the resistance value of the slide rheostat to the maximum value, and injecting magnetic fluid from the injection hole until the magnetic fluid sealing ring is formed;
step2.4: repairing the water pipe: moving the electromagnet prefabricating device with the formed magnetic fluid sealing ring to a place where the water pipe is broken, and if the magnetic fluid sealing ring is broken due to overlarge water pressure, adjusting the position of the sliding rheostat P to change the magnitude of current so as to change the magnitude of a magnetic field, so that the broken water pipe is covered by the magnetic fluid sealing ring;
step2.5: solidifying the magnetic fluid: after the magnetic fluid completely covers and seals the broken water pipe, injecting a hardening agent from the injection hole, and solidifying the magnetic fluid after a period of time;
step2.6: dismounting device: after the magnetic fluid is completely solidified, the power supply is cut off, the wound lead is unwound, and the magnetic fluid prefabricating device is detached from the water pipe and recovered;
step2.7: winding carbon fiber cloth: and after the device is disassembled and recycled, carbon fiber cloth is wound on the solidified magnetic fluid.
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| CN202110496333.8A CN113374976B (en) | 2021-05-07 | 2021-05-07 | Device and method for repairing broken water pipe by adopting magnetic fluid |
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| CN202110496333.8A CN113374976B (en) | 2021-05-07 | 2021-05-07 | Device and method for repairing broken water pipe by adopting magnetic fluid |
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| CN113374976B true CN113374976B (en) | 2022-04-08 |
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| CN110081269A (en) * | 2019-03-22 | 2019-08-02 | 清华大学 | A kind of magnetic force guidance two component adhesive pipeline leakage sealing arrangement |
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2021
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| US4034462A (en) * | 1973-01-18 | 1977-07-12 | Hilti Aktiengesellschaft | Method for repairing iron molds |
| CN201462322U (en) * | 2009-07-21 | 2010-05-12 | 天津安固密封技术有限公司 | Seal clamp with pressure |
| CN103256389A (en) * | 2013-05-30 | 2013-08-21 | 湘潭电机股份有限公司 | Magnetic type sealing device |
| CN206958487U (en) * | 2017-07-20 | 2018-02-02 | 刘国华 | A kind of sealer under pressure applied to oil-gas pipeline |
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| CN110081269A (en) * | 2019-03-22 | 2019-08-02 | 清华大学 | A kind of magnetic force guidance two component adhesive pipeline leakage sealing arrangement |
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| CN113374976A (en) | 2021-09-10 |
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Effective date of registration: 20231113 Address after: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231113 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 443002 No. 8, University Road, Xiling District, Yichang, Hubei Patentee before: CHINA THREE GORGES University |