Pipeline leaking stoppage device for large-diameter steel pipe under pressure and water

Abstract

The utility model relates to the technical field of water supply pipeline maintenance equipment, and particularly discloses a large-diameter steel pipe pressure and water pipeline plugging device which comprises a water supply pipeline and a strong magnetic suction cup mechanism, the strong magnetic suction cup mechanism is attracted to a pipeline leakage point of the water supply pipeline, and a plugging sleeve is arranged at the pipeline leakage point of the water supply pipeline. A secondary pressure relief pipe is arranged on one side of the leaking stoppage sleeve, and a primary pressure relief pipe is further arranged on the water supply pipeline; according to the pipeline leaking stoppage device for the large-diameter steel pipe with pressure and water, the strong magnetic suction cup mechanism is adopted for adsorbing the steel pipe to conduct direct leaking stoppage operation, all the operations are conducted with water and pressure, and leaking stoppage operation on the large-diameter steel pipe is achieved through temporary plugging of the strong magnetic suction cup mechanism and adjustment of pipeline pressure changes through the primary pressure relief pipe and the secondary pressure relief pipe. And two water taking point openings are formed, large-area excavation is avoided, the device is suitable for leakage point operation of all positions on the pipeline, the maintenance and construction cost is low, the leaking stoppage efficiency is high, and the pipeline is welded and sealed, and the sealing effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply pipeline maintenance equipment technical field, concretely is a kind of pipeline plugging device of large-diameter steel pipe under pressure with water. BACKGROUND

[0002] Tap water is delivered to users through pipeline, and water supply pipeline is the infrastructure of urban water supply system, and ensuring the stable and long-term operation of pipeline is a necessary measure to realize normal transmission of water resources.The existing water supply pipeline is mostly laid under ground, and when pipeline is damaged, it needs to be positioned and leakage is found in time, then the leakage point is excavated, the size of leakage point is judged, and a repair scheme is made, especially for large-diameter carbon steel pipeline, which is generally a factory water main pipeline, when these pipelines have leakage points, the leakage amount is large, and the pressure of tail pipeline is greatly reduced, which affects the stability of water supply.Currently, the repair methods for large-diameter carbon steel pipeline include haf joint pipe clamping plugging, pipeline welding and leakage repair and overall replacement of pipeline, among which, the latter two methods need to stop water supply, and large-area water stop affects the water use of customers, and water stop needs to be notified in advance and causes certain economic loss, and after cutting the pipeline, the water in the pipeline between the two main valves needs to be wasted before construction, which causes waste of water resources and low construction efficiency, or sealing material is applied outside the pipeline, and a clamping hoop type support is used to clamp the pipeline at the leakage point, the clamping hoop type support has large size, high construction cost and low construction efficiency, and due to the large diameter of the pipeline, the installation of the clamping hoop type support is inclined, which causes poor plugging effect, and the pipeline can only be plugged outside, and cannot effectively plug the inside of the pipeline wall at the leakage point, so there is a risk of secondary leakage, and even the whole section of pipeline needs to be replaced, the pipeline has large diameter and wide construction range, which causes high construction cost and low repair efficiency.During construction, water supply needs to be stopped on a large scale, which seriously affects normal water supply.

[0003] Therefore, the utility model provides a kind of pipeline plugging device of large-diameter steel pipe under pressure with water to solve the technical problems of high repair cost, low efficiency and poor plugging effect of existing large-diameter pipeline plugging. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model aims to provide a kind of pipeline plugging device of large-diameter steel pipe under pressure with water.

[0005] The utility model solves the technical problems by adopting the following technical scheme: a kind of pipeline plugging device of large-diameter steel pipe under pressure with water, including water supply pipeline and strong magnetic chuck mechanism, the strong magnetic chuck mechanism is adsorbed at the pipeline leakage point of water supply pipeline, the pipeline leakage point of water supply pipeline is provided with plugging sleeve, one side of plugging sleeve is provided with secondary pressure relief pipe, and primary pressure relief pipe is also provided on water supply pipeline.

[0006] Specific, the sleeve sealing welding on the water supply pipeline, sleeve cover pipeline leak point, sleeve upper part is equipped with flange plate.

[0007] Specific, the sleeve inside the strong magnetic suction disc mechanism is taken out, the upper part of the sleeve is connected through the flange plate sealing blind plate one, and the inside of the sleeve forms a sealed water cavity.

[0008] Specific, the one-time pressure relief pipe is welded on the water supply pipeline, the water hole is drilled in the inside of the one-time pressure relief pipe through the opening drill, the one-time pressure relief valve is installed on the one-time pressure relief pipe, and the one-time pressure relief pipe is connected through the flange sealing blind plate two.

[0009] Specific, the one-time pressure relief pipe is located at the upstream position of the pipeline leak point.

[0010] Specific, the secondary pressure relief pipe is installed with a secondary pressure relief valve.

[0011] Specific, the strong magnetic suction disc mechanism comprises a shell and a coil, an insulating plate is installed in the shell, a magnet conductor is installed at the lower part of the insulating plate, the coil is sleeved outside the magnet conductor, an insulating sleeve is sleeved outside the coil, and an arc-shaped magnet conductor is installed at the lower part of the magnet conductor.

[0012] Specific, the arc-shaped magnet conductor is provided with a water stop pad at the lower part, and the water stop pad is made of rubber gasket.

[0013] Specific, the insulating sleeve is connected with a fixed plate at the bottom, the fixed plate adopts a circular ring structure, the fixed plate is clamped with the fixed magnet conductor through the through hole in the middle of the fixed plate, and the outer side of the fixed plate is fixedly connected with the inner wall of the shell.

[0014] Specific, the shell is provided with a power box at the upper part, the power outlet of the power box is connected with the coil through a cable, and the power inlet of the power box is connected with an external power source through an input cable.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a pipeline leak stoppage device for large-diameter steel pipe with pressure and water, adopts strong magnetic suction disc mechanism to adsorb steel pipe and carry out direct leak stoppage operation, uses water pressure drilling to set up one-time pressure relief pipe and carry out pressure relief, then welds and installs leak stoppage sleeve, sets up secondary pressure relief pipe, removes strong magnetic suction disc mechanism, installs sealing blind plate one on leak stoppage sleeve and sealing blind plate two on one-time pressure relief pipe, carries out all operations with water and pressure, carries out temporary plugging through strong magnetic suction disc mechanism, adjusts pipeline pressure change through one-time pressure relief pipe and secondary pressure relief pipe, realizes leak stoppage operation to large-diameter steel pipe, forms two water taking points, avoids large-area excavation, adapts to leak point operation at all positions of pipeline, and the utility model has the advantages of low maintenance construction cost, high leak stoppage efficiency, pipeline welding sealing and good sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a strong magnetic chuck mechanism (without the sealing blind plate) for installing a leak-sealing device on a large-diameter steel pipe under pressure and water.

[0018] Figure 2 A schematic diagram of the structure for removing the strong magnetic chuck mechanism and installing the sealing blind plate in a pipeline sealing device for large-diameter steel pipes under pressure and water.

[0019] Figure 3 A cross-sectional view of a strong magnetic chuck mechanism installed in a pipe sealing device for large-diameter steel pipes under pressure and with water.

[0020] Figure 4 This is a schematic diagram of the internal structure of one embodiment of a strong magnetic chuck mechanism.

[0021] In the diagram: 1-Leak-stopping sleeve; 2-Strong magnetic chuck mechanism; 201-Housing; 202-Coil; 203-Magnetic conductor; 204-Arc-shaped magnetic conductor; 205-Insulating plate; 206-Insulating sleeve; 207-Fixing plate; 208-Water-stop pad; 209-Power supply box.

[0022] 3-Water supply pipe; 4-Pipe leak point; 5-Sealing blind flange one; 6-Secondary pressure relief pipe; 7-Secondary pressure relief valve; 8-Primary pressure relief pipe; 9-Primary pressure relief valve; 10-Sealing blind flange two. Detailed Implementation

[0023] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] like Figures 1-4 As shown, a pipe sealing device for large-diameter steel pipes under pressure and with water includes a sealing sleeve 1, a strong magnetic chuck mechanism 2, a water supply pipe 3, a secondary pressure relief pipe 6, and a primary pressure relief pipe 8. The strong magnetic chuck mechanism 2 is attached to the leak point 4 of the water supply pipe 3. When the strong magnetic chuck mechanism 2 is energized, it is directly attached to the water supply pipe 3 to perform a direct leak sealing operation. The sealing sleeve 1 is installed at the leak point 4 of the water supply pipe 3. The secondary pressure relief pipe 6 is installed on one side of the sealing sleeve 1. The primary pressure relief pipe 8 is also installed on the water supply pipe 3.

[0025] The sealing sleeve 1 is welded to the water supply pipe 3, and the sealing sleeve 1 covers the leak point 4 of the pipe. The upper part of the sealing sleeve 1 is equipped with a flange.

[0026] When the strong magnetic suction disc mechanism 2 in the plugging sleeve 1 is taken out, the upper part of the plugging sleeve 1 is connected with the sealing blind plate 1 through the flange, and the inside of the plugging sleeve 1 forms a sealed water passing cavity.

[0027] The primary pressure relief pipe 8 is welded on the water supply pipe 3, and the water taking hole is drilled in the inside of the primary pressure relief pipe 8 through the opening drill, the opening drill adopts the existing opening tool with water and pressure (such as the patent application No. 99202114.6 disclosed a pipe opening tool with pressure), the primary pressure relief valve 9 is installed on the primary pressure relief pipe 8, and the upper part of the primary pressure relief pipe 8 is connected with the sealing blind plate 2 through the flange.

[0028] The primary pressure relief pipe 8 is located at the upstream position of the pipe leakage point 4, and after the opening, the pressure is relieved in advance, the pressure at the pipe leakage point is reduced, and the strong magnetic suction disc mechanism 2 and the welding plugging sleeve 1 are conveniently installed.

[0029] The secondary pressure relief pipe 6 is installed with the secondary pressure relief valve 7.

[0030] One embodiment of the strong magnetic suction disc mechanism 2 is shown in the figure. Figure 4 As shown: the strong magnetic suction disc mechanism 2 includes a shell 201 and a coil 202, the upper part of the shell 201 is installed with an insulating plate 205, the lower part of the insulating plate 205 is installed with a magnetic conductor 203, the outside of the magnetic conductor 203 is sleeved with the coil 202, the outside of the coil 202 is sleeved with an insulating sleeve 206, the lower part of the magnetic conductor 203 is installed with an arc-shaped magnetic conductor 204, and the arc of the arc-shaped magnetic conductor 204 is adapted to tightly fit the outer arc surface of the water supply pipe 3.

[0031] The magnetic conductor 203 and the arc-shaped magnetic conductor 204 adopt fixedly connected silicon steel sheets, and the lower part of the arc-shaped magnetic conductor 204 is provided with a water stop pad 208, and the water stop pad 208 adopts a rubber material gasket.

[0032] The bottom of the insulating sleeve 206 is connected with a fixed plate 207, the insulating plate 205 and the fixed plate 207 adopt ceramic plates, the insulating sleeve 206 adopts a rubber material sleeve, the fixed plate 207 adopts a circular ring structure, the through hole in the middle of the fixed plate 207 clamps the fixed magnetic conductor 203, and the outside of the fixed plate 207 is fixedly connected with the inner wall of the shell 201.

[0033] The upper part of the shell 201 is provided with a power box 209, the power outlet of the power box 209 is connected with the coil 202 through a cable, and the power inlet of the power box 209 is connected with an external power source through an input cable. The strong magnetic suction disc mechanism 2 is externally connected with the power source, improves the magnetism, and can be recycled.

[0034] The utility model discloses a strong magnetic suction disc mechanism 2 is electrified to adsorb the steel pipe and carries out direct plugging operation, uses the water pressure punch drill to punch and weld the one-time pressure relief pipe 8 on the water supply pipeline 3 upstream, if water pressure is bigger, can install the one-time pressure relief pipe 8 and carry out pressure relief first, and then install the strong magnetic suction disc mechanism 2. One-time pressure relief pipe 8 passes through the flange connection external pipeline and leads water to other water use place, avoids water resource waste. Then welds and installs the plugging sleeve 1, and the plugging sleeve 1 annular pipeline full -welding sealing is fixed on the water supply pipeline 3 at the pipeline leakage point 4, and sets up the secondary pressure relief pipe 6 at one side of plugging sleeve 1. Remove the strong magnetic suction disc mechanism 1, install sealing blind plate no. 5 on plugging sleeve 1, open secondary pressure relief valve 7 and lead water to other water use place through secondary pressure relief pipe 6, form the water cavity in plugging sleeve 1, close primary pressure relief valve 9, install sealing blind plate no. 2 10 on one-time pressure relief pipe 8, finally close secondary pressure relief valve 7, complete pipeline plugging maintenance, all operations are carried out with water and pressure, through the temporary plugging of strong magnetic suction disc mechanism 2 and the pressure change of one-time pressure relief pipe 8 and secondary pressure relief pipe 6 adjustment, realize the plugging operation of large diameter steel pipe, and form two water taking point openings, avoid large -area excavation, adapt to the leakage point operation of all positions on the pipeline, and the maintenance construction cost is low, and the plugging efficiency is high, and the pipeline is welded and sealed, and the sealing effect is good.

[0035] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A large-diameter steel pipe pressure water belt pipe plugging device, characterized in that, Including water supply pipeline and strong magnetic suction disc mechanism, the strong magnetic suction disc mechanism is adsorbed at the pipeline leak point of the water supply pipeline, the pipeline leak point of the water supply pipeline is provided with a leak stop sleeve, one side of the leak stop sleeve is provided with a secondary pressure relief pipe, and a primary pressure relief pipe is further arranged on the water supply pipeline.

2. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 1, characterized in that, The leak stop sleeve is sealingly welded on the water supply pipeline, the leak stop sleeve covers the pipeline leak point, and a flange plate is arranged on the upper portion of the leak stop sleeve.

3. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 2, characterized in that, When the strong magnetic suction disc mechanism in the leak stop sleeve is taken out, the upper portion of the leak stop sleeve is connected to sealing blind plate one through the flange plate, and a sealed water passing cavity is formed in the leak stop sleeve.

4. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 1, characterized in that, The primary pressure relief pipe is welded on the water supply pipeline, a water taking hole is drilled in the inner side of the primary pressure relief pipe through a hole drilling machine, a primary pressure relief valve is installed on the primary pressure relief pipe, and the upper portion of the primary pressure relief pipe is connected to sealing blind plate two through a flange.

5. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 1, characterized in that, The primary pressure relief pipe is located at the upstream position of the pipeline leak point.

6. The apparatus according to claim 1, wherein The secondary pressure relief pipe is provided with a secondary pressure relief valve.

7. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 1, characterized in that, The strong magnetic suction disc mechanism comprises a shell and a coil, an insulating plate is arranged on the upper portion of the shell, a magnet conductor is arranged on the lower portion of the insulating plate, the coil is arranged outside the magnet conductor, an insulating sleeve is arranged outside the coil, and an arc-shaped magnet conductor is arranged on the lower portion of the magnet conductor.

8. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 7, characterized in that, A water stop pad is arranged on the lower portion of the arc-shaped magnet conductor, and the water stop pad is made of rubber.

9. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 7, characterized in that, A fixed plate is connected to the bottom of the insulating sleeve, the fixed plate has a circular ring structure, the through hole in the middle of the fixed plate clamps the magnet conductor, and the inner wall of the shell is fixedly connected to the outer side of the fixed plate.

10. The large-diameter steel pipe pressurized water pipeline plugging device according to claim 7, characterized in that, A power supply box is arranged on the upper portion of the shell, the power outlet of the power supply box is connected to the coil through a cable, and the power inlet of the power supply box is connected to an external power supply through an input cable.

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