CN114352837B - Large pipe diameter pressurized water pipeline plugging structure under limiting condition - Google Patents
Large pipe diameter pressurized water pipeline plugging structure under limiting condition Download PDFInfo
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- CN114352837B CN114352837B CN202111575783.2A CN202111575783A CN114352837B CN 114352837 B CN114352837 B CN 114352837B CN 202111575783 A CN202111575783 A CN 202111575783A CN 114352837 B CN114352837 B CN 114352837B
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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
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Abstract
The invention relates to the technical field of water pipeline plugging, and discloses a large-pipe-diameter pressurized water pipeline plugging structure under the limiting condition, which comprises a water pipeline, wherein the water pipeline comprises a water through section, a dismantling section and a plugging section, a plurality of main beams and a plurality of secondary beams are arranged in the plugging section, two ends of each main beam are respectively welded with the inner side walls of the plugging section, the secondary beams are respectively welded with the plurality of main beams, and two ends of each secondary beam are respectively welded with the inner side walls of the plugging section; dividing a longitudinal plugging surface of the plugging section into a plurality of plugging areas by a plurality of secondary beams and a plurality of main beams; the plurality of plugging areas are respectively provided with a plugging plate, and the longitudinal plugging surfaces of the plugging sections are closed by the plurality of plugging plates; the longitudinal plugging surface is divided into a plurality of plugging areas by the main beams and the secondary beams, the plugging areas are plugged by the plugging plates, so that the whole plugging structure is formed, the water through section is isolated from the dismantling section, the water inlet pipe and the water through section are not affected in the process of dismantling the dismantling section, and the plugging device is simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of water pipeline plugging, in particular to a large-pipe-diameter pressurized water pipeline plugging structure under a limiting condition.
Background
The water plant has certain production equipment, can complete the whole tap water production process, has water quality meeting the requirements of general production water and domestic water, and can be used as a production unit for primary accounting inside a company.
In order to realize tap water treatment and transportation in water factories, various water pipelines are buried underground, and the tap water is conveyed from a water taking place to a water treatment unit, finally, the tap water is conveyed outwards and the like through the water pipelines. In the water works transformation or maintenance process, the water pipeline needs to be replaced, maintained and the like, so that a foundation pit is required to be excavated, the underground water pipeline is exposed, and the water pipeline is convenient to replace or maintain or plug by constructors.
In the prior art, when the water works are updated, the position of the equipment changes, so that the part of the water pipeline needs to be dismantled, namely the dismantling section is used as the water passing section, and the part of the water pipeline is used as the water passing section, so that the water passing section and the dismantling section need to be plugged, and the dismantling section can be removed after plugging is finished. At present, the structure of the plugging structure for plugging the water pipeline is complex, and the construction cost is high.
Disclosure of Invention
The invention aims to provide a large-diameter water-pressing pipeline plugging structure under a limiting condition, and aims to solve the problems of complex plugging structure and cost of a water pipeline in the prior art.
The invention is realized in such a way that the large-pipe-diameter water-pressing pipeline plugging structure under the limiting condition comprises a water pipeline, wherein the water pipeline comprises a water passage section communicated with a water inlet pipe, a dismantling section to be dismantled and a plugging section, and the plugging section is positioned between the water passage section and the dismantling section; a plurality of longitudinally arranged main beams are arranged in the plugging section, the main beams are arranged in parallel at intervals, and two ends of each main beam are respectively welded with the inner side wall of the plugging section; a plurality of transversely arranged secondary beams are arranged in the plugging section, the plurality of secondary beams are arranged in parallel at intervals, the secondary beams transversely cross over the plurality of main beams and are welded with the plurality of main beams, and two ends of each secondary beam are respectively welded with the inner side walls of the plugging section;
the plurality of secondary beams and the plurality of main beams divide the longitudinal plugging surface of the plugging section into a plurality of plugging areas; the sealing device comprises a plurality of sealing areas, wherein the sealing areas are respectively provided with sealing plates, the sealing plates are respectively welded with the inner side wall, the main beam and the secondary beam of the sealing section, the side edges of the adjacent sealing plates are in butt welding, and the sealing plates seal the longitudinal sealing surfaces of the sealing section.
Further, the water through section is provided with a communication hole communicated with the water inlet pipe, and the plugging section is arranged close to the dismantling section and deviated from the communication hole along the flowing direction of water flowing from the water inlet pipe to the water through section; the water passage section is provided with a buffer section positioned between the communication hole and the plugging section.
Further, the buffer section is provided with a plurality of reinforcing ribs, the reinforcing ribs are arranged in a crisscross manner to form a buffer frame which is longitudinally arranged, and two ends of the reinforcing ribs are respectively welded on the inner side wall of the buffer section; the buffer frame has the interior terminal surface towards leading to the water section, the steel wire net has been laid on the interior terminal surface of buffer frame, the periphery of steel wire net is in butt joint with the inside wall of buffer section, steel wire net and a plurality of steel reinforcement strip respectively fixed connection.
Further, the girder has the back surface towards demolishing the section and the upstream surface towards leading to the water section, the welding has a plurality of strengthening ribs on the inside wall of shutoff section, the strengthening rib extends along the circumference of shutoff section, along demolishing the direction of section to leading to the water section, strengthening rib from outside and interior butt the back surface of girder, and with the back surface welding of girder.
Further, the middle part of the reinforcing rib is welded with the back surface of the main beam, and the two ends of the reinforcing rib respectively bypass the side edge of the main beam and the back surface of the main beam and then extend away from the side edge of the main beam to form an extension section extending along the circumferential direction of the plugging section; the reinforcing ribs are welded with the upstream surface of the main beam and the side edges of the main beam respectively, and the whole reinforcing ribs are welded with the inner side walls of the plugging sections along the axial direction of the reinforcing ribs; along the direction of deviating from the side of girder, the extension is arranged towards demolishing section slope, and the extension is the crooked form of multistage and arranges.
Further, the plurality of secondary beams transversely span the upstream surfaces of the plurality of main beams and are respectively welded with the upstream surfaces of the plurality of main beams.
Further, the plugging plate is provided with a longitudinal edge welded with the inner side wall of the plugging section on an arc side, a longitudinal edge welded on the main beam and a transverse edge welded on the secondary beam, wherein the arc side is arranged along the circumferential extension of the plugging section, the longitudinal edge is arranged along the axial extension of the main beam, and the transverse edge is arranged along the axial extension of the secondary beam; the arc-shaped edge is welded with the inner side wall of the plugging section, the longitudinal edge is welded with the upstream surface of the main beam, and the transverse edge is welded with the secondary beam.
Further, a longitudinal gap is formed between adjacent plugging plates and between adjacent longitudinal edges; a longitudinal strip is arranged between the longitudinal gaps, and comprises a longitudinal embedded section embedded in the longitudinal gaps and a longitudinal sealing cover section connected to the outer ends of the longitudinal embedded sections;
along the direction of embedding longitudinal clearance, the width of longitudinal embedded section reduces gradually, the longitudinal clearance is filled with longitudinal elastic strip in, when longitudinal embedded section embedding longitudinal clearance back, the compression deformation of butt longitudinal elastic strip towards longitudinal limit, longitudinal elastic strip compression butt longitudinal limit, the outside opening of longitudinal clearance is sealed to the longitudinal closing cap section, and the both sides of longitudinal closing cap section are welded with adjacent closing cap board respectively.
Further, a transverse gap is formed between adjacent plugging plates and between adjacent transverse edges; providing a transverse strip between the transverse gaps, the transverse strip comprising a transverse embedded section embedded in the transverse gaps and a transverse capping section connected to the outer ends of the transverse embedded sections;
along the direction of embedding transverse gap, transverse embedded section's width reduces gradually, transversely fill in the clearance and have transverse elastic strip, when transverse embedded section embedding transverse gap back, the transverse elastic strip of butt pressure is towards transverse limit compression deformation, transverse elastic strip compression butt transverse limit, transverse closing cap section seals the outside opening in transverse gap, and transverse closing cap section's both sides respectively with adjacent closing cap board welding.
Further, guide strips are welded on the inner side wall of the plugging section, the guide strips are arranged towards the water through section, and the guide strips are arranged in a closed and encircling manner along the circumferential direction of the plugging section;
the guide strip is provided with an outer end face which is arranged towards the plugging plates, the outer end face of the guide strip is respectively welded with a plurality of plugging plates, the guide strip is provided with an outer peripheral face which is arranged towards the inner side wall of the plugging section, the outer peripheral face is provided with an outer section which is arranged towards the plugging plates and an inner section which is arranged towards the water passing section, the outer section of the outer peripheral face is welded with the inner side wall of the plugging section, and a water guiding interval is arranged between the inner section of the outer peripheral face and the inner side wall of the plugging section;
the guide strip has an inner peripheral surface arranged away from the inner side wall of the plugging section, and is obliquely arranged towards the inner side wall of the plugging section along the extending direction from the dismantling section to the water passing section.
Compared with the prior art, the large-pipe-diameter pressurized water pipeline plugging structure has the advantages that under the limiting condition, the main beam and the secondary beam are constructed on the plugging section to form the supporting frame of the plugging structure, the longitudinal plugging surface is divided into a plurality of plugging areas by the main beam and the secondary beam, the plugging areas are plugged by the plugging plates, so that the whole plugging structure is formed, the water-through section is isolated from the dismantling section, the use of the water inlet pipe and the water-through section is not affected in the subsequent dismantling process, the structure is simple, and the cost is low.
Drawings
FIG. 1 is a schematic front view of a water inlet pipe and a water pipeline according to the present invention;
FIG. 2 is an internal schematic view of the plugging section provided by the invention with main beams and secondary beams;
FIG. 3 is an internal schematic view of a plugging segment provided by the present invention with a plugging plate;
FIG. 4 is a schematic front view of a longitudinal bar disposed in a longitudinal gap provided by the present invention;
FIG. 5 is a schematic front view of a transverse bar disposed in a transverse gap provided by the present invention;
FIG. 6 is a schematic front view of a guide bar provided by the present invention;
FIG. 7 is a schematic front view of a reinforcement bar provided by the present invention;
fig. 8 is a schematic cut-away view of a closure plate provided by the present invention.
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. 1-8, a preferred embodiment of the present invention is provided.
The large-pipe-diameter pressurized water pipeline plugging structure under the limiting condition comprises a water pipeline, wherein the water pipeline comprises a water passage section 102 communicated with a water inlet pipe 100, a dismantling section 103 to be dismantled and a plugging section 104, and the plugging section 104 is positioned between the water passage section 102 and the dismantling section 103; a plurality of longitudinally arranged girders 200 are arranged in the plugging section 104, the girders 200 are arranged in parallel at intervals, and two ends of the girders 200 are respectively welded with the inner side walls of the plugging section 104; a plurality of transversely arranged secondary beams 201 are arranged in the plugging section 104, the plurality of secondary beams 201 are arranged in parallel at intervals, the secondary beams 201 transversely span the plurality of main beams 200 and are welded with the plurality of main beams 200, and two ends of each secondary beam 201 are respectively welded with the inner side walls of the plugging section 104;
the plurality of secondary beams 201 and the plurality of primary beams 200 divide the longitudinal plugging surface of the plugging section 104 into a plurality of plugging areas; the plurality of plugging areas are respectively provided with plugging plates 300, the plugging plates 300 are respectively welded with the inner side walls of the plugging sections 104, the main beams 200 and the secondary beams 201, the side edges of the adjacent plugging plates 300 are in butt welding, and the plurality of plugging plates 300 seal the longitudinal plugging surfaces of the plugging sections 104.
The large-pipe-diameter pressurized water pipeline plugging structure under the limiting conditions provided by the above is characterized in that the main beam 200 and the secondary beam 201 are constructed on the plugging section 104 to form a supporting frame of the plugging structure, the longitudinal plugging surface is divided into a plurality of plugging areas by the main beam 200 and the secondary beam 201, the plugging areas are plugged by the plugging plate 300, so that the whole plugging structure is formed, the water-through section 102 is isolated from the dismantling section 103, the use of the water inlet pipe 100 and the water-through section 102 is not influenced in the process of dismantling the dismantling section 103, the structure is simple, and the cost is low.
In actual construction, the large-pipe-diameter pressurized water pipeline plugging structure is constructed under the limiting conditions through the following construction steps:
1) Digging a foundation pit to the top of the water inlet pipe 100 and the water pipeline, forming a hole site on the water inlet pipe 100, and welding a flange plate 101 on the hole site; in actual application, the dismantling section 103 needs to be dismantled later, and the water passing section 102 is kept to be communicated with the water inlet pipe 100 for continuous use;
2) The water in the water inlet pipe 100 and the water pipeline is emptied by utilizing the water pump through the flange plate 101; opening the flange 101, and entering the water pipeline to measure the pipe diameter and remove dirt in the water pipeline;
3) A plurality of longitudinally disposed main beams 200 as described above are disposed within the plugging section 104;
4) A plurality of transversely arranged secondary beams 201 are arranged in the plugging section 104;
5) The above-described sealing plate 300 is provided in each of the plurality of sealing regions.
In actual construction, in a set water cut-off period, the construction operation is performed, firstly, water in the water inlet pipe 100 and the water pipeline is emptied, construction is performed in the water inlet pipeline, and in the whole plugging construction process, the water inlet pipe 100 and the water pipeline are kept in the water cut-off period.
Along the flow direction of the water flow from the water inlet pipe 100 into the water passing section 102, the plugging section 104 is arranged against the dismantling section 103, deviating from the water inlet pipe 100. Thus, after the water flow enters from the water inlet pipe 100, the water flows along the water passing section 102, and as the blocking section 104 is arranged away from the water inlet pipe 100 and leans against the dismantling section 103, the water flow entering from the water inlet pipe 100 is prevented from directly impacting the blocking structure on the blocking section 104, and the water pressure born by the blocking structure is reduced.
Specifically, the water passage section 102 is provided with a communication hole for communicating with the water inlet pipe 100, the blocking section 104 is arranged to lean against the dismantling section 103 and deviate from the communication hole, and the water passage section 102 is provided with a buffer section 106 between the communication hole and the blocking section 104.
The buffer section 106 is provided with a plurality of reinforcing ribs, the reinforcing ribs are crisscrossed to form a buffer frame 105 which is longitudinally arranged, and two ends of the reinforcing ribs are respectively welded on the inner side wall of the buffer section 106; the buffer frame 105 has the interior terminal surface towards leading to water section 102, and the steel wire net has been laid on the interior terminal surface of buffer frame 105, and the inside wall of buffer section 106 is abutted to the periphery of steel wire net, and steel wire net and a plurality of steel reinforcement bars are fixed connection respectively.
In this way, the impact of the water flow to the plugging plate 300 firstly needs to pass through the buffer section 106, and the impact of the water flow to the plugging plate 300 is reduced by utilizing the buffer effect of the steel wire mesh on the buffer section 106 and the buffer frame 105.
The girder 200 has the back surface towards demolishing section 103 and the upstream surface towards the section of leading to water 102, and after a plurality of girders 200 weld, weld a plurality of strengthening ribs 202 on the inside wall of shutoff section 104, strengthening ribs 202 extend along the circumference of shutoff section 104, along demolishing section 103 to the direction of leading to water section 102, strengthening ribs 202 from outside to inside butt the back surface of girder 200, and weld with the back surface of girder 200.
After the water flow section 102 is filled with water flow, the water flow directly presses against the upstream surface of the plugging structure, and water pressure towards the upstream surface is applied to the plugging structure, so that the girder 200 can be supported and reinforced by arranging the reinforcing ribs 202 on the inner side wall of the plugging section 104 and pressing against the upstream surface of the girder 200 from outside to inside.
The middle part of the reinforcing rib 202 is welded with the back surface of the main beam 200, and after the two ends of the reinforcing rib 202 respectively bypass the side edge of the main beam 200 and the back surface of the main beam 200, the reinforcing rib extends away from the side edge of the main beam 200 to form an extension section 203 extending along the circumferential direction of the plugging section 104; the reinforcement ribs 202 are welded to the upstream surface of the main beam 200 and the side edges of the main beam 200, respectively, and the entire reinforcement ribs 202 are welded to the inner side walls of the plugging sections 104 along the axial direction of the reinforcement ribs 202.
Thus, the whole reinforcing rib 202 is wound along the periphery of the main beam 200 and is welded with the periphery of the main beam 200 and the inner side wall of the plugging section 104 respectively, the joint of the reinforcing rib 202 to the inner side wall of the main beam 200 and the plugging section 104 forms a surrounding type ring, and the reinforcing rib 202 is also welded with the main beam 200, so that the whole main beam 200 and the inner side wall of the plugging section 104 form an inner layer and an outer layer of welding, the stability of the main beam 200 is enhanced, and secondly, the extension section 203 of the reinforcing rib 202 increases the welding length of the main beam 200 and the inner side wall of the plugging section 104.
The extending section 203 is obliquely arranged towards the dismantling section 103 along the direction away from the side edge of the main beam 200, so that when the water flow pressure is applied to the plugging structure, the impact force and the pressure of the water flow can be buffered due to the oblique arrangement of the extending section 203; in addition, the extending section 203 is arranged in a multi-section bending manner, so that the welding length of the extending section 203 and the inner side wall of the plugging section 104 is increased, and the extending section 203 is in a multi-section bending manner, so that even if an intermittent impact plugging structure occurs in the water flow process, the impact force of the water flow can be buffered through the bending arrangement of the extending section 203.
The plurality of secondary beams 201 transversely span the upstream surfaces of the plurality of main beams 200 and are respectively welded with the upstream surfaces of the plurality of main beams 200; in this way, the connection stability of the secondary beam 201 can be enhanced, the secondary beam 201 is provided with a clamping groove facing the main beam 200, and after the main beam 200 is clamped in the clamping groove, the main beam 200 and the secondary beam 201 are welded, so that the positioning effect is achieved in the assembly process, and the main beam 200 and the secondary beam 201 are integrated.
The plugging plate 300 has a longitudinal side 301 welded to the inner side wall of the plugging section 104 at an arcuate edge arranged along the circumferential extension of the plugging section 104, a longitudinal side 301 welded to the main beam 200, and a transverse side 302 welded to the secondary beam 201, the longitudinal side 301 being arranged along the axial extension of the main beam 200, the transverse side 302 being arranged along the axial extension of the secondary beam 201;
in the process of installing the plugging plate 300, the arc-shaped edge is welded with the inner side wall of the plugging section 104, then the longitudinal edge 301 is welded with the upstream surface of the main beam 200, and then the transverse edge 302 is welded with the secondary beam 201.
The arcuate edges of the plurality of closure plates 300 are in turn abutted to form a closed circumferential edge that is circumferentially disposed along the entire circumference of the closure segment 104. The arc edge is welded with the inner side wall of the plugging section 104, so that the sealing between the arc edge of the plugging plate 300 and the inner side wall of the plugging section 104 can be ensured, and then the welding of the longitudinal edge 301 and the transverse edge 302 is performed, and the position error is in a larger adjusting range due to the welding of the longitudinal edge 301 and the main beam 200 and the welding of the transverse edge 302 and the secondary beam 201, so that the defect that a gap exists between the subsequent plugging plate 300 and the inner side wall of the plugging section 104 is avoided.
A longitudinal gap is formed between adjacent plugging plates 300 and between adjacent longitudinal edges 301; a longitudinal strip is arranged between the longitudinal gaps, and comprises a longitudinal embedded section 401 embedded in the longitudinal gaps and a longitudinal sealing cover section 400 connected to the outer end of the longitudinal embedded section 401;
the width of the longitudinal embedded section 401 is gradually reduced along the direction of embedding the longitudinal gap, so that a variable gap exists between two sides of the longitudinal embedded section 401 and the adjacent longitudinal edge 301; the longitudinal gap is filled with a longitudinal elastic strip 402, after the longitudinal embedded section 401 is embedded into the longitudinal gap, the longitudinal elastic strip 402 is pressed and deformed towards the longitudinal edge 301, the longitudinal elastic strip 402 is pressed and pressed against the longitudinal edge 301, the longitudinal sealing cover section 400 seals the outer opening of the longitudinal gap, and two sides of the longitudinal sealing cover section 400 are respectively welded with the adjacent sealing plates 300.
When the longitudinal embedding section 401 is embedded into the longitudinal gap, the pressing longitudinal elastic strip 402 is compressed and deformed towards the longitudinal edge 301, the longitudinal elastic strip 402 is compressed and pressed against the longitudinal edge 301, the longitudinal gap between the longitudinal edges 301 is sealed by the longitudinal elastic strip 402, and elastic pressure is applied to the longitudinal edge 301, so that not only is the sealing better, but also the structure between the adjacent sealing boards 300 is more stable.
In addition, the two sides of the longitudinal cover section 400 are welded with the adjacent sealing plates 300 respectively, and the outer openings of the longitudinal gaps are closed, so that the longitudinal gaps between the longitudinal edges 301 are sealed secondarily, and the adjacent sealing plates 300 are connected into a whole, so that the structure is more stable.
A lateral gap is formed between adjacent plugging plates 300 and between adjacent lateral edges 302; providing a transverse strip between the transverse gaps, the transverse strip comprising a transverse embedded section 501 embedded in the transverse gaps and a transverse cover section 500 connected to the outer ends of the transverse embedded section 501;
the width of the transverse embedded section 501 is gradually reduced along the direction of embedding the transverse gap, so that a variable interval exists between two sides of the transverse embedded section 501 and the adjacent transverse edge 302; the transverse gap is filled with a transverse elastic strip 502, after the transverse embedded section 501 is embedded into the transverse gap, the transverse elastic strip 502 is pressed and deformed towards the transverse edge 302, the transverse elastic strip 502 is pressed and pressed against the transverse edge 302, the transverse sealing cover section 500 seals the outer opening of the transverse gap, and two sides of the transverse sealing cover section 500 are respectively welded with the adjacent sealing plates 300.
After the transverse embedding section 501 is embedded into the transverse gap, the pressing transverse elastic strips 502 are compressively deformed towards the transverse edges 302, the transverse elastic strips 502 are compressively pressed against the transverse edges 302, the transverse gap between the transverse edges 302 is sealed by the transverse elastic strips 502, and elastic pressure is applied to the transverse edges 302, so that not only is the sealing better, but also the structure between the adjacent sealing plates 300 is more stable.
In addition, two sides of the transverse sealing cover section 500 are respectively welded with the adjacent sealing plates 300, and the outer openings of the transverse gaps are closed, so that the transverse gaps between the transverse edges 302 are secondarily sealed, and the adjacent sealing plates 300 are integrally connected, so that the structure is more stable.
A guide strip 600 is welded on the inner side wall of the plugging section 104, the guide strip 600 is arranged towards the water passing section 102, and the guide strip 600 is arranged along the circumferential direction of the plugging section 104 in a closed and encircling manner;
the guide bar 600 has an outer end surface 601 disposed toward the plugging plate 300, the outer end surface 601 of the guide bar 600 is welded with the plurality of plugging plates 300, respectively, and the plurality of plugging plates 300 are further connected into a unitary structure by the guide bar 600; the guide strip 600 has an outer peripheral surface facing the inner side wall of the plugging section 104, the outer peripheral surface has an outer section 602 facing the plugging plate 300 and an inner section 603 facing the water passing section 102, the outer section 602 of the outer peripheral surface is welded with the inner side wall of the plugging section 104, and a water guiding space is arranged between the inner section 603 of the outer peripheral surface and the inner side wall of the plugging section 104; that is, the inner section 603 and the outer section 602 have a step transition, and when the outer section 602 is welded to the inner side wall of the plugging section 104, there is a space between the inner section 603 and the inner side wall of the plugging section 104, that is, a water guiding space.
When the water flow of the water flowing section 102 intermittently impacts the plugging structure, the overall impact of the water flow can be dispersed by utilizing the water guide interval between the inner section 603 and the inner side wall of the plugging section 104, and the guide strip 600 can buffer the direct impact of the water flow on the periphery of the plugging plate 300, so that the impact force of the water flow is reduced, the stability of the whole plugging structure is ensured, and meanwhile, the impact of the water flow is reduced.
The guide strip 600 has an inner circumferential surface 604 disposed away from the inner sidewall of the plugging section 104, and the inner circumferential surface 604 is disposed obliquely toward the inner sidewall of the plugging section 104 along the extending direction from the removing section 103 to the water passing section 102, so that the inner circumferential surface 604 can play a role in buffering and guiding the impact of the water flow, and reduce the direct impact of the water flow on the outer circumference of the plugging plate 300.
In this embodiment, the plugging plate 300 has an inner end portion facing the water passing section 102, the inner end portion is convexly arranged facing the water passing section 102 to form a protruding table, and along an extending direction facing the water passing section 102, an outer periphery of the protruding table is obliquely arranged inward, so that the protruding table is formed into a frustum shape, and when water flow of the water passing section 102 is backflushed to the inner end portion of the plugging plate 300, the backflushed water flow can be dispersed through the convexly inclined arrangement of the protruding table, and the backflushing force of the water flow to the plugging plate 300 is reduced.
The protruding platform has the interior end face towards the section 102 that leads to, and the interior end face of protruding platform is kept away from the section 102 that leads to sunken arrangement, forms the recoil groove 306, like this, further strengthens protruding platform to the effect of scattering of recoil rivers.
The protruding platform is internally provided with a plurality of backflushing channels 307, the backflushing channels 307 penetrate through the protruding platform, are communicated with the backflushing grooves 306 and the outside of the protruding platform, and are obliquely arranged towards the water passing section 102 along the direction from inside to outside of the backflushing grooves 306, so that after water flow backflushing to the plugging plate 300 enters the backflushing grooves 306, the backflushing water flow reversely impacts along the backflushing channels 307, and forms opposite impact with the backflushing water flow, and impact of the backflushing water flow on plugging is reduced.
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 (7)
1. The large-pipe-diameter pressurized water pipeline plugging structure is characterized by comprising a water pipeline, wherein the water pipeline comprises a water passage section communicated with a water inlet pipe, a dismantling section to be dismantled and a plugging section, and the plugging section is positioned between the water passage section and the dismantling section; a plurality of longitudinally arranged main beams are arranged in the plugging section, the main beams are arranged in parallel at intervals, and two ends of each main beam are respectively welded with the inner side wall of the plugging section; a plurality of transversely arranged secondary beams are arranged in the plugging section, the plurality of secondary beams are arranged in parallel at intervals, the secondary beams transversely cross over the plurality of main beams and are welded with the plurality of main beams, and two ends of each secondary beam are respectively welded with the inner side walls of the plugging section;
the plurality of secondary beams and the plurality of main beams divide the longitudinal plugging surface of the plugging section into a plurality of plugging areas; the plurality of plugging areas are respectively provided with plugging plates, the plugging plates are respectively welded with the inner side wall, the main beam and the secondary beam of the plugging section, the side edges of the adjacent plugging plates are in butt welding, and the plurality of plugging plates seal the longitudinal plugging surfaces of the plugging section;
the plugging plate is provided with a longitudinal edge welded on the arc-shaped edge, a longitudinal edge welded on the main beam and a transverse edge welded on the secondary beam, wherein the arc-shaped edge is arranged along the circumferential extension of the plugging section, the longitudinal edge is arranged along the axial extension of the main beam, and the transverse edge is arranged along the axial extension of the secondary beam; the arc-shaped edge is welded with the inner side wall of the plugging section, the longitudinal edge is welded with the upstream surface of the main beam, and the transverse edge is welded with the secondary beam;
a longitudinal gap is formed between adjacent plugging plates and between adjacent longitudinal edges; a longitudinal strip is arranged between the longitudinal gaps, and comprises a longitudinal embedded section embedded in the longitudinal gaps and a longitudinal sealing cover section connected to the outer ends of the longitudinal embedded sections;
the width of the longitudinal embedded section is gradually reduced along the direction of embedding the longitudinal gap, the longitudinal gap is filled with a longitudinal elastic strip, after the longitudinal embedded section is embedded into the longitudinal gap, the longitudinal elastic strip is pressed against the longitudinal elastic strip to be compressed and deformed towards the longitudinal edge, the longitudinal elastic strip is pressed against the longitudinal edge, the longitudinal sealing cover section seals the outer opening of the longitudinal gap, and two sides of the longitudinal sealing cover section are respectively welded with adjacent sealing cover plates;
a transverse gap is formed between adjacent plugging plates and between adjacent transverse edges; providing a transverse strip between the transverse gaps, the transverse strip comprising a transverse embedded section embedded in the transverse gaps and a transverse capping section connected to the outer ends of the transverse embedded sections;
along the direction of embedding transverse gap, transverse embedded section's width reduces gradually, transversely fill in the clearance and have transverse elastic strip, when transverse embedded section embedding transverse gap back, the transverse elastic strip of butt pressure is towards transverse limit compression deformation, transverse elastic strip compression butt transverse limit, transverse closing cap section seals the outside opening in transverse gap, and transverse closing cap section's both sides respectively with adjacent closing cap board welding.
2. The large-diameter pressurized water pipeline plugging structure under the limiting condition of claim 1, wherein the water-passing section is provided with a communication hole communicated with the water inlet pipe, and the plugging section is arranged in a direction deviating from the communication hole along the flowing direction of water flowing from the water inlet pipe to the water-passing section; the water passage section is provided with a buffer section positioned between the communication hole and the plugging section.
3. The large-diameter pressurized water pipeline plugging structure under the limiting condition according to claim 2, wherein the buffer section is provided with a plurality of reinforcing ribs, the reinforcing ribs are crisscrossed to form a longitudinally arranged buffer frame, and two ends of the reinforcing ribs are respectively welded on the inner side wall of the buffer section; the buffer frame has the interior terminal surface towards leading to the water section, the steel wire net has been laid on the interior terminal surface of buffer frame, the periphery of steel wire net is in butt joint with the inside wall of buffer section, steel wire net and a plurality of steel reinforcement strip respectively fixed connection.
4. A large-pipe-diameter pressurized water pipeline plugging structure under the limiting condition according to claim 3, wherein the main beam is provided with a back surface facing the dismantling section and a back surface facing the water passing section, a plurality of reinforcing ribs are welded on the inner side wall of the plugging section, extend along the circumferential direction of the plugging section, are abutted against the back surface of the main beam from outside to inside along the direction from the dismantling section to the water passing section, and are welded with the back surface of the main beam.
5. The large-diameter pressurized water pipeline plugging structure under the limiting condition according to claim 4, wherein the middle part of the reinforcing rib is welded with the back surface of the main beam, and the two ends of the reinforcing rib respectively bypass the side edge of the main beam and the back surface of the main beam and then extend away from the side edge of the main beam to form an extension section extending along the circumferential direction of the plugging section; the reinforcing ribs are welded with the upstream surface of the main beam and the side edges of the main beam respectively, and the whole reinforcing ribs are welded with the inner side walls of the plugging sections along the axial direction of the reinforcing ribs; along the direction of deviating from the side of girder, the extension is arranged towards demolishing section slope, and the extension is the crooked form of multistage and arranges.
6. A large diameter pressurized water pipeline plugging structure under a constraint condition as defined in claim 3, wherein a plurality of said secondary beams transversely span the upstream surfaces of a plurality of main beams and are welded with the upstream surfaces of a plurality of main beams respectively.
7. A large-pipe-diameter pressurized water pipeline plugging structure under the limiting condition as set forth in claim 3, wherein guide strips are welded on the inner side wall of the plugging section, the guide strips are arranged towards the water-passing section, and the guide strips are arranged along the circumferential direction of the plugging section in a closed and encircling manner;
the guide strip is provided with an outer end face which is arranged towards the plugging plates, the outer end face of the guide strip is respectively welded with a plurality of plugging plates, the guide strip is provided with an outer peripheral face which is arranged towards the inner side wall of the plugging section, the outer peripheral face is provided with an outer section which is arranged towards the plugging plates and an inner section which is arranged towards the water passing section, the outer section of the outer peripheral face is welded with the inner side wall of the plugging section, and a water guiding interval is arranged between the inner section of the outer peripheral face and the inner side wall of the plugging section;
the guide strip has an inner peripheral surface arranged away from the inner side wall of the plugging section, and is obliquely arranged towards the inner side wall of the plugging section along the extending direction from the dismantling section to the water passing section.
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