CN114593304B - Water factory large-buried deep water pipeline air bag filling type plugging construction method - Google Patents
Water factory large-buried deep water pipeline air bag filling type plugging construction method Download PDFInfo
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- CN114593304B CN114593304B CN202210368378.1A CN202210368378A CN114593304B CN 114593304 B CN114593304 B CN 114593304B CN 202210368378 A CN202210368378 A CN 202210368378A CN 114593304 B CN114593304 B CN 114593304B
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- side wall
- limiting
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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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to the technical field of water pipeline plugging, and discloses a water plant large-buried deep water pipeline air bag filling type plugging construction method, which comprises the following construction steps: 1) Excavating a reverse well to the lower part of the water-passing section, arranging hole sites and welding a flange plate; 2) The water in the water pipeline is emptied by utilizing a water pump; 3) Arranging an air bag and a positioning structure in the water passing section, inflating the air bag until the pressure in the air bag reaches a set pressure, abutting the air bag against the inner side wall of the water passing section and the positioning structure, and separating the water passing section from the dismantling section by the air bag; 4) Cutting the dismantling section, and separating the dismantling section from the water passing section; inside constructor got into the section of leading to water through the hole site, set up location structure and gasbag, after inflating the gasbag, gasbag and the inside wall butt of leading to the water section, and support and press location structure, utilize the gasbag after inflating to cut off the arrangement with the section of leading to water, then demolish the section again, the construction is simple, and the efficiency of construction is high.
Description
Technical Field
The invention relates to the technical field of water pipeline plugging, in particular to a water plant large-buried deep water pipeline air bag filling type plugging construction method.
Background
In water plants, water is transported by providing a water pipe in the ground, including diversion and transportation of treated tap water.
The service life of the water plant is longer, or the water plant needs to be upgraded and reformed due to the change of urban water delivery requirements and the like, but the normal water supply operation of the water plant is guaranteed simultaneously in the process of upgrading and reforming, so that the water plant is upgraded and reformed point by point through the water supply period and the alternate operation of each device.
In the prior art, as the arrangement, trend and the like of a water pipeline need to be adjusted in the upgrading and reforming process of a water plant, the normal construction can be ensured only by plugging the water section of the water pipeline before the dismantling section of the water pipeline is dismantled, and at present, the plugging construction process for the water pipeline is complex and the construction efficiency is lower.
Disclosure of Invention
The invention aims to provide a water factory large-buried deep water pipeline air bag filling type blocking construction method, and aims to solve the problems of complex construction and low construction efficiency in blocking construction of a water pipeline in the prior art.
The invention discloses a filling type plugging construction method for an air sac of a large buried deep water pipeline of a water plant, which comprises the following construction steps:
1) The water pipeline comprises a water-passing section and a dismantling section to be dismantled, the water-passing section is in butt joint with the dismantling section, and a reverse well is excavated to the lower part of the water-passing section; a hole site communicated with the inside of the water section is arranged on the water section through the reverse well, and a flange plate is welded on the hole site;
2) The water pump is utilized to empty the water in the water pipeline through the flange plate; opening the flange plate, and entering the water pipeline to measure the pipe diameter and remove dirt in the water pipeline;
3) The air bags and the positioning structures are arranged in the water passage section through the flange plate, and the air bags and the positioning structures extend along the extending direction from the water passage section to the dismantling section, the air bags and the positioning structures are sequentially arranged, and the positioning structures are fixedly connected with the inner side wall of the water through section; inflating the air bag through the inflation equipment until the pressure in the air bag reaches the set pressure, and abutting against the inner side wall of the water through section and the positioning structure after the air bag is inflated, wherein the air bag separates the water through section from the dismantling section;
4) After the dismantling section is separated from the water passing section by cutting the dismantling section, an end opening facing the dismantling section is formed at the end of the water passing section, a plugging end plate is welded at the end opening, and the plugging end plate seals the end opening.
Further, in the construction step 1), a fixing ring is welded on the periphery of the water passing section, and the fixing ring is circumferentially arranged around the water passing section; in the construction step 4), after the dismantling section is dismantled, the end opening is formed in the enclosing area of the fixing ring, and the plugging end plate is fixedly connected to the fixing ring.
Further, the end-capped end part is provided with a plugging side wall facing the water passing section, and the middle part of the plugging side wall is sunken away from the water passing section to form a sunken groove; in the construction step 4), after the end portion of the plug is closed to the end portion opening, the outer periphery of the recessed groove is abutted against the outer periphery of the end portion opening.
Further, a plurality of partition plates are convexly arranged on the concave groove, and the partition plates are circumferentially arranged along the circumferential direction of the water through section at intervals; the length direction of the partition plate is arranged along the axial direction of the water passing section, and the width direction of the partition plate is arranged along the radial direction of the water passing section;
in the construction step 4), after the end opening is closed by the plugging end, the outer side wall of the partition plate abuts against the inner side wall of the water passing section, and the inner side wall of the partition plate extends towards the central position of the water passing section.
Further, the positioning structure comprises a plurality of horizontally arranged cross beams and longitudinally arranged limiting plates, wherein the cross beams are arranged in the water passing section, two ends of each cross beam are respectively welded with the inner side wall of the water passing section, and the cross beams are sequentially arranged at intervals along the height direction of the water passing section; the limiting plates are connected with the cross beams and are arranged towards the air bags, and the air bags are provided with limiting ends towards the limiting plates;
in the construction step 3), when the air bag is inflated until the pressure in the air bag reaches the set pressure, the limiting end is propped against the limiting plate.
Further, the periphery of the limiting plate is provided with a peripheral side wall, an embedded interval is arranged between the peripheral side wall of the limiting plate and the inner side wall of the water passage section, the limiting plate is provided with a pressing end face which faces the arc-shaped bulge of the air bag, and the pressing end face is spherical;
in the construction step 3), after the air bag is inflated until the pressure in the air bag reaches the set pressure, the abutting end face abuts against the middle part of the limiting end, and the periphery of the limiting end is driven to be embedded into the embedding interval.
Further, in the construction step 3), after the air bag is inflated until the pressure in the air bag reaches the set pressure, a limiting portion which is away from the concave of the pressing end surface is formed in the middle of the limiting end, an embedded portion which protrudes towards the embedded interval is formed on the periphery of the limiting end, and the embedded portion surrounds the periphery of the limiting portion;
in the construction step 3), the pressing end face is embedded in the limiting part and presses the limiting part, the embedded part is embedded in the embedded interval and presses the peripheral side wall of the water passing section.
Further, an annular groove is formed in the outer circumferential side wall of the limiting plate, the annular groove is circumferentially arranged along the outer circumferential side wall, and in the construction step 3), the inner side of the embedded portion is embedded in the annular groove.
Further, the inner side wall of the water passing section is convexly provided with a convex ring strip, the convex ring strip is circumferentially arranged along the circumferential direction of the water passing section, the convex ring strip is opposite to the outer circumferential side wall of the limiting plate, and the embedded interval is formed between the convex ring strip and the outer circumferential side wall of the limiting plate;
in the construction step 3), after the embedded part is embedded in the embedded space, the convex ring strip is embedded at the outer side of the embedded part, and the embedded part is extruded to deform.
Further, the air bag is provided with an elastic wall which is arranged towards the inner side wall of the water passing section, the elastic wall is circumferentially arranged along the circumferential direction of the water passing section, a plurality of limiting rings are arranged in the elastic wall, the limiting rings are axially and alternately arranged along the water passing section, and the limiting rings are circumferentially arranged along the water passing section;
in the construction step 3), after the air bag is inflated until the pressure in the air bag reaches the set pressure, the elastic wall abuts against the inner side wall of the water passing section, a partition interval is arranged between the limiting ring and the inner side wall of the water passing section, and the partition interval is circumferentially arranged along the circumferential direction of the water passing section.
Compared with the prior art, the air bag filling type plugging construction method for the large buried deep water pipeline of the water plant has the advantages that constructors enter the water section through the hole sites, the positioning structure and the air bag are arranged, after the air bag is inflated, the air bag is abutted to the inner side wall of the water section and is abutted to the positioning structure, the inflated air bag is utilized to partition the water section, then the demolishing section is dismantled, the construction is simple, and the construction efficiency is high.
Drawings
FIG. 1 is a flow frame diagram of a water works large buried deep water pipeline air bag filling type plugging construction method provided by the invention;
FIG. 2 is a schematic front view of a water conduit provided by the present invention in a reverse well;
FIG. 3 is a schematic front view of the air bag after inflation and the water passage section and positioning structure of the present invention;
FIG. 4 is a schematic front view of the connection between the limiting plate and the cross beam and between the limiting plate and the water passage section;
fig. 5 is a schematic front view of the connection of the plugging end plate and the parting bead.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-5, a preferred embodiment of the present invention is provided.
The air bag filling type plugging construction method for the large buried deep water pipeline of the water plant comprises the following construction steps:
1) The water pipeline comprises a water-passing section 101 and a dismantling section 102 to be dismantled, the water-passing section 101 is in butt joint with the dismantling section 102, and a reverse well 100 is excavated to the lower part of the water-passing section 101; the water-passing section 101 is used for water passing in the subsequent process, and the dismantling section 102 is used for dismantling in the subsequent process; setting a hole site communicated with the inside of the water section 101 on the water section 101 through the reverse well 100, enabling constructors to go down through the reverse well 100, and then welding a flange plate 104 on the hole site;
2) The water in the water pipeline is emptied by utilizing the water pump through the flange plate 104; opening the flange 104, and entering the water pipeline to measure the pipe diameter and remove dirt in the water pipeline;
3) The air bag 200 and the positioning structure are sequentially arranged along the extending direction from the water passing section 101 to the dismantling section 102, and the positioning structure is fixedly connected with the inner side wall of the water passing section 101; inflating the air bag 200 through the inflating equipment until the pressure in the air bag 200 reaches the set pressure, and then abutting against the inner side wall of the water through section 101 after the air bag 200 is inflated and abutting against the positioning structure, wherein the air bag 200 separates the water through section 101 from the dismantling section 102;
4) After the dismantling section 102 is separated from the water passage section 101 by cutting the dismantling section 102, an end opening facing the dismantling section 102 is formed at the end of the water passage section 101, and a plugging end plate 500 is welded to the end opening, and the plugging end plate 500 closes the end opening.
According to the filling type plugging construction method for the large buried deep water pipeline air bags of the water plant, constructors enter the water-through section 101 through the hole sites, the positioning structure and the air bags 200 are arranged, after the air bags 200 are inflated, the air bags 200 are abutted to the inner side walls of the water-through section 101 and are abutted to the positioning structure, the inflated air bags 200 are utilized to partition the water-through section 101, then the dismantling section 102 is dismantled, construction is simple, and construction efficiency is high.
In this embodiment, an annular guard wall is disposed on the inner side wall of the reverse well 100, and the annular guard wall is circumferentially disposed around the reverse well 100 and supports the reverse well 100, and the reverse well 100 needs to be supported by the annular guard wall during the reverse well 100 construction process due to a certain depth of the reverse well 100.
The annular retaining wall comprises a plurality of annular sections 1001, the plurality of annular sections 1001 are sequentially arranged along the height direction of the reverse well 100, the annular sections 1001 are circumferentially arranged around the reverse well 100, the annular sections 1001 are provided with inner side walls facing the reverse well 100, and the inner side walls of the annular sections 1001 are obliquely arranged away from the reverse well 100 along the direction from top to bottom, so that the construction of the annular sections 1001 is facilitated in the process of constructing the reverse well 100 by the reverse method.
The top of the annular section 1001 has a top end face facing the arrangement, the top end face is recessed downward, an embedded groove 1002 is formed, the embedded groove 1002 is circumferentially arranged along the circumferential direction of the reverse well 100, the bottom of the annular section 1001 has an insertion section 1003, between adjacent annular sections 1001, the insertion section 1003 of the upper annular section 1001 is directly inserted into the embedded groove 1002 of the lower annular section 1001, and thus, sequential matching of the annular sections 1001 between adjacent annular sections is realized.
The top end surface of the annular section 1001 is formed with an annular step surface 1004 disposed outside the insertion section 1003, so that a tool is conveniently caught on the annular step surface 1004 in the subsequent process of entering the reverse well 100 for construction.
In the embodiment, in the construction step 1), a fixing ring 103 is welded on the periphery of the water passage section 101, and the fixing ring 103 is circumferentially arranged around the water passage section 101; in the construction step 4), when the dismantling section 102 is dismantled, an end opening is formed in the enclosing area of the fixing ring 103, and the plugging end plate 500 is fixedly connected to the fixing ring 103. Thus, when the dismantling section 102 is dismantled, the plugging end plate 500 can be directly connected with the fixing ring 103, and the construction is convenient.
The end-capped end part is provided with a plugging side wall facing the water passing section 101, the middle part of the plugging side wall is sunken away from the water passing section 101, and a sunken groove 501 is formed; in the construction step 4), after the end-closed end opening is closed, the outer periphery of the concave groove 501 is butted with the outer periphery of the end opening.
Like this, after in case gasbag 200 appears leaking, rivers are supported through gasbag 200 and are pressed to shutoff end plate 500 after, owing to shutoff end plate 500 is formed with sunken groove 501, and sunken groove 501 deviates from the water section 101 and arranges, avoids rivers to exert pressure completely between shutoff end plate 500 and solid fixed ring 103, can cushion the leakage of rivers.
The concave groove 501 is convexly provided with a plurality of baffles 502, and the baffles 502 are circumferentially arranged along the circumferential interval of the water passing section 101; the length direction of the partition 502 is arranged along the axial direction of the water passing section 101, and the width direction of the partition 502 is arranged along the radial direction of the water passing section 101;
in the construction step 4), after the end portion is closed and the end portion is opened, the outer side wall of the partition 502 abuts against the inner side wall of the water passage section 101, and the inner side wall of the partition 502 extends toward the center of the water passage section 101.
By arranging the plurality of partition boards 502, firstly, the connection between the plugging end plate 500 and the water through section 101 is more stable, not only the connection between the plugging end plate and the fixing ring 103 is realized, but also the plurality of partition boards 502 are inserted into the water through section 101 and are abutted with the inner side wall of the water through section 101; secondly, in case the rivers support and press to shutoff end plate 500 after, because a plurality of baffles 502 butt respectively at the inside wall of leading to water section 101, can split into a plurality of parts with rivers, avoid the rivers to reveal through the junction between shutoff end plate 500 and the solid fixed ring 103, reduce the leak pressure of water conservancy.
In this embodiment, the positioning structure includes a plurality of horizontally arranged beams 400 and longitudinally arranged limiting plates 300 arranged in the water passage section 101, two ends of the beams 400 are respectively welded with the inner side walls of the water passage section 101, and the plurality of beams 400 are sequentially arranged at intervals along the height direction of the water passage section 101; the limiting plate 300 is connected with the plurality of cross beams 400 and arranged towards the air bag 200, and the air bag 200 is provided with a limiting end towards the limiting plate 300;
in the construction step 3), when the airbag 200 is inflated until the pressure in the airbag 200 reaches the set pressure, the limit end is pressed against the limit plate 300. The plurality of cross beams 400 play a role in structural support and fixation, the limiting plate 300 plays a role in limiting, and the limiting section of the air bag 200 directly abuts against the limiting plate 300 to provide a limiting effect for abutting against between the air bag 200 and the inner side wall of the water through section 101.
The periphery of the limiting plate 300 is provided with a peripheral side wall, an embedded interval is arranged between the peripheral side wall of the limiting plate 300 and the inner side wall of the water passage section 101, the limiting plate 300 is provided with a pressing end surface which protrudes towards the air bag 200 in an arc shape, and the pressing end surface is in a spherical shape;
in the construction step 3), when the airbag 200 is inflated to the pressure in the airbag 200 reaching the set pressure, the pressing end face presses against the middle part of the limiting end, and the periphery of the driving limiting end is embedded in the embedding interval.
When the air bag 200 is inflated, until the pressure inside the air bag 200 reaches a set pressure value, the pressing end face is fixedly arranged, the pressing end face can press the limiting end of the air bag 200 to deviate from the limiting plate 300, so that the cooperation between the limiting section and the pressing end face is stable, the periphery of the limiting section can be embedded in the embedding interval in the concave process, the cooperation between the limiting end of the air bag 200 and the limiting plate 300 is stable, and the sealing performance is better.
In this embodiment, in the construction step 3), after the air bag 200 is inflated to the pressure in the air bag 200 reaches the set pressure, a limiting portion 106 recessed away from the pressing end surface is formed in the middle of the limiting end, an embedded portion 105 protruding toward the embedded space is formed on the periphery of the limiting end, and the embedded portion 105 surrounds the periphery of the limiting portion 106;
in the construction step 3), the pressing end face is fitted into the stopper 106, pressing the stopper 106, the fitting portion 105 is fitted into the fitting space, and pressing the outer peripheral side wall of the water passage 101.
The retainer plate 300 has a circumferential side wall provided with a ring groove 302, the ring groove 302 being circumferentially arranged along the circumferential side wall, and in the step 3), the inner side of the insertion portion 105 is inserted into the ring groove 302. Thus, after the embedded portion 105 enters the embedded space, the inner side of the embedded portion 105 is clamped into the ring groove 302, so that the embedded portion 105 and the positioning plate are firmly matched.
In this embodiment, the inner side wall of the water passage section 101 is convexly provided with a convex ring strip 301, the convex ring strip 301 is circumferentially arranged along the circumferential direction of the water passage section 101, the convex ring strip 301 is arranged opposite to the outer circumferential side wall of the limiting plate 300, and an embedding interval is formed between the convex ring strip 301 and the outer circumferential side wall of the limiting plate 300;
in the construction step 3), after the insertion portion 105 is inserted into the insertion space, the collar strip 301 is inserted outside the insertion portion 105, and the insertion portion 105 is pressed to deform.
In this way, when the insertion portion 105 enters the insertion space, the convex ring strip 301 also presses the outer side of the insertion portion 105 to deform, and is inserted into the outer side of the insertion portion 105, so that the convex ring strip 301 cooperates with the ring groove 302 to clamp the outer side and the inner side of the insertion portion 105 from both sides, and the insertion portion 105 is stably inserted into the insertion space.
In this embodiment, the air bag 200 has an elastic wall disposed toward the inner side wall of the water passage section 101, the elastic wall is circumferentially disposed along the circumferential direction of the water passage section 101, a plurality of restriction rings 201 are disposed in the elastic wall, the plurality of restriction rings 201 are axially spaced along the water passage section 101, and the restriction rings 201 are circumferentially disposed along the water passage section 101;
in the construction step 3), when the air bag 200 is inflated to the pressure in the air bag 200 reaches the set pressure, the elastic wall abuts against the inner side wall of the water passing section 101, a partition interval 202 is arranged between the limiting ring 201 and the inner side wall of the water passing section 101, and the partition interval 202 is circumferentially arranged along the circumferential direction of the water passing section 101.
In this way, the inflated air bag 200 is divided into a plurality of sections by arranging the plurality of limiting rings 201, and the limiting rings 201 and the inner side walls of the water passing sections 101 are provided with the partition intervals 202, so that the multi-section butt joint between the air bag 200 and the inner side walls of the water passing sections 101 is realized, the butt joint stability is improved, the multi-section butt joint is realized, and the sealing property is greatly enhanced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The air bag filling type plugging construction method for the large buried deep water pipeline of the water plant is characterized by comprising the following construction steps of:
1) The water pipeline comprises a water-passing section and a dismantling section to be dismantled, the water-passing section is in butt joint with the dismantling section, and a reverse well is excavated to the lower part of the water-passing section; a hole site communicated with the inside of the water section is arranged on the water section through the reverse well, and a flange plate is welded on the hole site;
2) The water pump is utilized to empty the water in the water pipeline through the flange plate; opening the flange plate, and entering the water pipeline to measure the pipe diameter and remove dirt in the water pipeline;
3) The air bags and the positioning structures are arranged in the water passage section through the flange plate, and the air bags and the positioning structures extend along the extending direction from the water passage section to the dismantling section, the air bags and the positioning structures are sequentially arranged, and the positioning structures are fixedly connected with the inner side wall of the water through section; inflating the air bag through the inflation equipment until the pressure in the air bag reaches the set pressure, and abutting against the inner side wall of the water through section and the positioning structure after the air bag is inflated, wherein the air bag separates the water through section from the dismantling section;
4) After the dismantling section is separated from the water passing section by cutting the dismantling section, an end opening facing the dismantling section is formed at the end of the water passing section, a plugging end plate is welded at the end opening, and the plugging end plate seals the end opening;
the positioning structure comprises a plurality of horizontally arranged cross beams and longitudinally arranged limiting plates, wherein two ends of each cross beam are respectively welded with the inner side wall of the water passing section, and the cross beams are sequentially arranged at intervals along the height direction of the water passing section; the limiting plates are connected with the cross beams and are arranged towards the air bags, and the air bags are provided with limiting ends towards the limiting plates; in the construction step 3), when the air bag is inflated until the pressure in the air bag reaches the set pressure, the limiting end is propped against the limiting plate.
2. The method for air bag filling type plugging construction of large buried deep water pipeline in water works according to claim 1, wherein in the construction step 1), a fixing ring is welded on the periphery of the water passing section, and the fixing ring is circumferentially arranged around the water passing section; in the construction step 4), after the dismantling section is dismantled, the end opening is formed in the enclosing area of the fixing ring, and the plugging end plate is fixedly connected to the fixing ring.
3. The method for filling and plugging the large buried deep water pipeline air bag of the water plant according to claim 2, wherein the end part of the plugging end is provided with a plugging side wall facing the water passage section, and the middle part of the plugging side wall is sunken away from the water passage section to form a sunken groove; in the construction step 4), after the end portion of the plug is closed to the end portion opening, the outer periphery of the recessed groove is abutted against the outer periphery of the end portion opening.
4. The method for air bag filling type plugging construction of large buried deep water pipeline in water works according to claim 3, wherein a plurality of partition plates are convexly arranged on the concave groove, and the partition plates are circumferentially arranged along the circumferential direction of the water passing section at intervals; the length direction of the partition plate is arranged along the axial direction of the water passing section, and the width direction of the partition plate is arranged along the radial direction of the water passing section;
in the construction step 4), after the end opening is closed by the plugging end, the outer side wall of the partition plate abuts against the inner side wall of the water passing section, and the inner side wall of the partition plate extends towards the central position of the water passing section.
5. The method for filling and plugging a large buried deep water pipeline air bag in a water mill according to any one of claims 1 to 4, wherein the periphery of the limiting plate is provided with a peripheral side wall, an embedded interval is arranged between the peripheral side wall of the limiting plate and the inner side wall of the water passage section, the limiting plate is provided with a pressing end surface protruding towards the air bag in an arc shape, and the pressing end surface is in a spherical shape;
in the construction step 3), after the air bag is inflated until the pressure in the air bag reaches the set pressure, the abutting end face abuts against the middle part of the limiting end, and the periphery of the limiting end is driven to be embedded into the embedding interval.
6. The method for filling and plugging the air bags of the large buried deep water pipeline of the water plant according to claim 5, wherein in the construction step 3), after the air bags are inflated until the pressure in the air bags reaches the set pressure, a limiting part which is away from the concave of the pressing end surface is formed in the middle of the limiting end, an embedded part which protrudes towards the embedded interval is formed on the periphery of the limiting end, and the embedded part surrounds the periphery of the limiting part;
in the construction step 3), the pressing end face is embedded in the limiting part and presses the limiting part, the embedded part is embedded in the embedded interval and presses the peripheral side wall of the water passing section.
7. The method for air bag filling type plugging construction of large buried deep water pipeline in water works according to claim 6, wherein an annular groove is arranged in the peripheral side wall of the limiting plate, the annular groove is circumferentially arranged along the peripheral side wall, and in the construction step 3), the inner side of the embedded part is embedded in the annular groove.
8. The method for filling and plugging the air bags of the large buried deep water pipeline of the water plant according to claim 7, wherein the inner side wall of the water passage section is convexly provided with a convex ring strip, the convex ring strip is circumferentially arranged along the circumferential direction of the water passage section, the convex ring strip is arranged opposite to the outer circumferential side wall of the limiting plate, and the embedded interval is formed between the convex ring strip and the outer circumferential side wall of the limiting plate;
in the construction step 3), after the embedded part is embedded in the embedded space, the convex ring strip is embedded at the outer side of the embedded part, and the embedded part is extruded to deform.
9. The method for filling and plugging a large buried deep water pipeline air bag in a water mill according to any one of claims 1 to 4, wherein the air bag is provided with an elastic wall which is arranged towards the inner side wall of the water passage section, the elastic wall is circumferentially arranged along the water passage section, a plurality of limiting rings are arranged in the elastic wall at intervals along the axial direction of the water passage section, and the limiting rings are circumferentially arranged along the water passage section;
in the construction step 3), after the air bag is inflated until the pressure in the air bag reaches the set pressure, the elastic wall abuts against the inner side wall of the water passing section, a partition interval is arranged between the limiting ring and the inner side wall of the water passing section, and the partition interval is circumferentially arranged along the circumferential direction of the water passing section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210368378.1A CN114593304B (en) | 2022-04-08 | 2022-04-08 | Water factory large-buried deep water pipeline air bag filling type plugging construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210368378.1A CN114593304B (en) | 2022-04-08 | 2022-04-08 | Water factory large-buried deep water pipeline air bag filling type plugging construction method |
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| CN114593304A CN114593304A (en) | 2022-06-07 |
| CN114593304B true CN114593304B (en) | 2023-09-26 |
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|---|---|---|---|---|
| US6053210A (en) * | 1993-12-21 | 2000-04-25 | Vinidex Tubemakers Pty. Limited | Expandable plug and control method |
| CN104819361A (en) * | 2015-03-26 | 2015-08-05 | 成都来宝石油设备有限公司 | Water plugging device for petroleum pipeline maintenance |
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| CN213629454U (en) * | 2020-07-06 | 2021-07-06 | 深圳市市政工程总公司 | Water injection type water plugging air bag |
| CN215928814U (en) * | 2021-08-26 | 2022-03-01 | 河钢股份有限公司承德分公司 | Maintenance plugging device of gas pipeline |
| CN114215142A (en) * | 2021-12-21 | 2022-03-22 | 深圳市市政工程总公司 | Construction method for plugging large-diameter water pressing pipeline under limited condition |
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2022
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| US6053210A (en) * | 1993-12-21 | 2000-04-25 | Vinidex Tubemakers Pty. Limited | Expandable plug and control method |
| CN104819361A (en) * | 2015-03-26 | 2015-08-05 | 成都来宝石油设备有限公司 | Water plugging device for petroleum pipeline maintenance |
| CN211118254U (en) * | 2019-10-23 | 2020-07-28 | 青海盐湖工业股份有限公司 | Pipeline plugging air bag |
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| CN213629454U (en) * | 2020-07-06 | 2021-07-06 | 深圳市市政工程总公司 | Water injection type water plugging air bag |
| CN215928814U (en) * | 2021-08-26 | 2022-03-01 | 河钢股份有限公司承德分公司 | Maintenance plugging device of gas pipeline |
| CN114215142A (en) * | 2021-12-21 | 2022-03-22 | 深圳市市政工程总公司 | Construction method for plugging large-diameter water pressing pipeline under limited condition |
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