CN114352837A - Large-diameter water pressing pipeline plugging structure under limited condition - Google Patents
Large-diameter water pressing pipeline plugging structure under limited condition Download PDFInfo
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- CN114352837A CN114352837A CN202111575783.2A CN202111575783A CN114352837A CN 114352837 A CN114352837 A CN 114352837A CN 202111575783 A CN202111575783 A CN 202111575783A CN 114352837 A CN114352837 A CN 114352837A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 238000003825 pressing Methods 0.000 title claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- 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
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Abstract
The invention relates to the technical field of water pipeline plugging, and discloses a large-diameter water pressure pipeline plugging structure under a limited condition, which comprises a water pipeline, wherein the water pipeline comprises a water passing section, a removing 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 wall of the plugging section, the secondary beams are welded with the main beams, and two ends of each secondary beam are respectively welded with the inner side wall of the plugging section; the longitudinal plugging surface of the plugging section is divided into a plurality of plugging areas by the plurality of secondary beams and the plurality of main beams; the plurality of plugging areas are respectively provided with plugging plates, and the plurality of plugging plates seal the longitudinal plugging surface of the plugging section; utilize girder and secondary beam to split apart into a plurality of shutoff regions with vertical shutoff face, utilize the shutoff board to block up a plurality of shutoff regions to form whole block structure, will lead to the water section and demolish the section and keep apart, follow-up demolising the in-process of section, can not influence the use of inlet tube and water section, simple structure, the cost is also low.
Description
Technical Field
The invention relates to the technical field of water pipeline plugging, in particular to a large-diameter water pressure pipeline plugging structure under a limited condition.
Background
The water plant has certain production equipment, can complete the whole production process of tap water, has water quality meeting the requirements of general production water and domestic water, and can be used as a production unit for primary accounting in a company.
In order to realize tap water treatment and transportation in water plants, various water pipelines are buried underground, and water is conveyed from a water taking place to a water treatment unit, finally, tap water is conveyed outwards through the water pipelines, and the like. At water plant transformation or maintenance in-process, need change and maintain the water pipeling etc. like this, then must excavate the foundation ditch for underground water pipeling shows out, and the constructor of being convenient for changes or maintains or shutoff water pipeling.
In the prior art, when a water plant is updated, the position of equipment changes, so that part of a water pipeline needs to be dismantled, namely a dismantling section, and part of the water pipeline continues to be used as a water passing section, so that plugging needs to be carried out between the water passing section and the dismantling section, and the dismantling section can be dismantled after plugging is finished. At present, a plugging structure for plugging a water pipeline is complex in structure and high in construction cost.
Disclosure of Invention
The invention aims to provide a large-diameter water pressure pipeline plugging structure under a limited 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-diameter water pressing pipeline plugging structure under the limited condition comprises a water pipeline, wherein the water pipeline comprises a water passing section, a to-be-removed section and a plugging section, which are communicated with a water inlet pipe, and the plugging section is positioned between the water passing section and the removal section; a plurality of main beams which are longitudinally arranged 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 secondary beams which are transversely arranged are arranged in the plugging section, the secondary beams are arranged at intervals in parallel, the secondary beams transversely span the main beams and are welded with the main beams, and two ends of each secondary beam are respectively welded with the inner side wall of the plugging section;
the longitudinal plugging surface of the plugging section is divided into a plurality of plugging areas by the secondary beams and the main beams; a plurality of the 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 plugging plates seal the longitudinal plugging surface of the plugging section.
Furthermore, a communication hole communicated with the water inlet pipe is formed in the water passing section, and the plugging section is close to the dismantling section and deviates from the communication hole along the flowing direction of water flow entering the water passing section from the water inlet pipe; the water passing section is provided with a buffer section positioned between the communicating hole and the plugging section.
Furthermore, the buffer section is provided with a plurality of reinforcing steel bars, the reinforcing steel bars are arranged in a criss-cross mode to form a buffer frame which is arranged longitudinally, and two ends of each reinforcing steel bar are welded on the inner side wall of the buffer section respectively; the buffer frame is provided with an inner end face facing the water passing section, a steel wire mesh is laid on the inner end face of the buffer frame, the periphery of the steel wire mesh abuts against the inner side wall of the buffer section, and the steel wire mesh is fixedly connected with the plurality of reinforcing steel bars respectively.
Further, the girder has the upstream face of orientation removal section's the surface of a back of a water and orientation water-passing section, the welding has a plurality of reinforcement muscle on the inside wall of shutoff section, reinforcement muscle extends along the circumference of shutoff section, along the direction of removing section to water-passing section, reinforcement muscle from outside to inside butt the surface of a back of a water of girder, and with the surface of a back of a water welding of girder.
Furthermore, the middle part of the reinforcing rib is welded with the back water surface of the main beam, and two ends of the reinforcing rib respectively extend away from the side edge of the main beam after bypassing the side edge of the main beam and the water surface of the main beam to form an extension section extending along the circumferential direction of the plugging section; the reinforcing ribs are respectively welded with the upstream surface of the main beam and the side edge of the main beam, and the whole reinforcing rib is welded with the inner side wall of the plugging section along the axial direction of the reinforcing rib; along the direction of deviating from the side of girder, the extension section is arranged towards demolising the section slope, and the extension section is the curved form of multistage and arranges.
Furthermore, a plurality of secondary beams transversely stride across the upstream faces of the main beams and are respectively welded with the upstream faces of the main beams.
Furthermore, the blocking plate is provided with an arc edge welded with the inner side wall of the blocking section, a longitudinal edge welded on the main beam and a transverse edge welded on the secondary beam, the arc edge extends along the circumferential direction of the blocking section, the longitudinal edge extends along the axial direction of the main beam, and the transverse edge extends along the axial direction of the secondary beam; the arc edge is welded with the inner side wall of the plugging section, the longitudinal edge is welded with the upstream face of the main beam, and the transverse edge is welded with the secondary beam.
Further, a longitudinal gap is formed between adjacent longitudinal edges of adjacent plugging plates; a longitudinal strip is arranged between the longitudinal gaps and comprises a longitudinal embedding section embedded in the longitudinal gaps and a longitudinal cover section connected to the outer end of the longitudinal embedding section;
the width of the longitudinal embedding 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 embedding section is embedded into the longitudinal gap, the longitudinal elastic strip is pressed to be compressed and deformed towards the longitudinal edge, the longitudinal elastic strip is compressed and pressed against the longitudinal edge, the longitudinal sealing cover section seals an external opening of the longitudinal gap, and two sides of the longitudinal sealing cover section are respectively welded with adjacent sealing cover plates.
Further, a transverse gap is formed between adjacent transverse edges of adjacent plugging plates; arranging a transverse strip between the transverse gaps, wherein the transverse strip comprises a transverse embedding section embedded in the transverse gaps and a transverse cover section connected to the outer end of the transverse embedding section;
along embedding the direction of transverse gap, the width of horizontal embedding section diminishes gradually, it has horizontal elasticity strip to fill in the transverse gap, after horizontal embedding section embedding transverse gap, support and press horizontal elasticity strip towards horizontal limit compressive deformation, horizontal elasticity strip compression is supporting and is pressing horizontal limit, the outside opening in transverse gap is sealed to horizontal closing cap section, and the both sides of horizontal closing cap section respectively with adjacent closing cap board welding.
Furthermore, 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 in a closed surrounding manner along the circumferential direction of the plugging section;
the guide strip is provided with outer end faces arranged towards the plugging plates, the outer end faces of the guide strip are respectively welded with the plugging plates, the guide strip is provided with an outer peripheral face towards the inner side wall of the plugging section, the outer peripheral face is provided with an outer section towards the plugging plates and an inner section 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 guide interval is formed between the inner section of the outer peripheral face and the inner side wall of the plugging section;
the guide strip is provided with an inner circumferential surface which is arranged to deviate from the inner side wall of the plugging section, and the inner circumferential surface is obliquely arranged towards the inner side wall of the plugging section along the extending direction from the detaching section to the water passing section.
Compared with the prior art, the large-diameter water pressure pipeline plugging structure under the limiting condition provided by the invention has the advantages that 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 passing section is isolated from the dismantling section, and the use of the water inlet pipe and the water passing section cannot be influenced in the subsequent dismantling process of the dismantling section, so that 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 pipe according to the present invention;
FIG. 2 is an internal schematic view of the plugging section provided by the present invention with a primary beam and a secondary beam;
FIG. 3 is a schematic view of the inside of the plugging section provided with the plugging plate according to the present invention;
FIG. 4 is a schematic front view of the invention providing a longitudinal gap with a longitudinal strip disposed therein;
FIG. 5 is a schematic front view of the transverse bar disposed in the transverse gap provided by the present invention;
FIG. 6 is a schematic front view of a guide strip provided by the present invention;
FIG. 7 is a schematic front view of a reinforcing bar provided by the present invention;
fig. 8 is a schematic sectional view of a closure panel provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail 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 orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation 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 intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-8, preferred embodiments of the present invention are shown.
The large-diameter water pressure pipeline plugging structure under the limited condition comprises a water pipeline, wherein the water pipeline comprises a water passing section 102 communicated with a water inlet pipe 100, a to-be-removed section 103 and a plugging section 104, and the plugging section 104 is positioned between the water passing section 102 and the removal section 103; a plurality of main beams 200 which are longitudinally arranged are arranged in the plugging section 104, the main beams 200 are arranged in parallel at intervals, and two ends of each main beam 200 are respectively welded with the inner side wall of the plugging section 104; a plurality of secondary beams 201 which are transversely arranged are arranged in the plugging section 104, the secondary beams 201 are arranged at intervals in parallel, the secondary beams 201 transversely span the main beams 200 and are welded with the main beams 200, and two ends of each secondary beam 201 are respectively welded with the inner side wall of the plugging section 104;
the longitudinal plugging surface of the plugging section 104 is divided into a plurality of plugging areas by the plurality of secondary beams 201 and the plurality of main beams 200; the plugging areas are respectively provided with plugging plates 300, the plugging plates 300 are respectively welded with the inner side wall of the plugging section 104, the main beam 200 and the secondary beam 201, the side edges of the adjacent plugging plates 300 are in butt welding, and the longitudinal plugging faces of the plugging section 104 are sealed by the plugging plates 300.
The large-diameter water pressure pipeline plugging structure under the limiting condition is simple in structure and low in cost, a main beam 200 and a secondary beam 201 are constructed on the plugging section 104 to form a supporting frame of the plugging structure, a 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 plates 300, and therefore the whole plugging structure is formed, the water passing section 102 is separated from the dismantling section 103, and the use of the water inlet pipe 100 and the water passing section 102 cannot be influenced in the subsequent dismantling process of the dismantling section 103.
In actual construction, the large-diameter water-pressing pipeline plugging structure is constructed by the following construction steps under the limited condition:
1) excavating 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 practical application, the dismantling section 103 needs to be dismantled subsequently, and the water passing section 102 is kept 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 the water pump through the flange plate 101; opening the flange plate 101, and entering the water pipeline to measure the pipe diameter and remove dirt in the water pipeline;
3) a plurality of longitudinally arranged main beams 200 are arranged in the plugging section 104;
4) a plurality of transversely arranged secondary beams 201 are arranged in the blocking section 104;
5) the plugging plates 300 are provided in the plurality of plugging regions, respectively.
In actual construction, the construction operation is carried out in a set water cut-off period, water in the water inlet pipe 100 and the water pipeline is firstly emptied, construction is carried out in the water inlet pipeline, and the water inlet pipe 100 and the water pipeline are kept in the water cut-off period in the whole plugging construction process.
The plugging section 104 is arranged offset from the water inlet pipe 100, close to the removal section 103, in the direction of flow of the water after entering the water passage section 102 from the water inlet pipe 100. Therefore, after the water flow enters from the water inlet pipe 100, the water flow flows along the water passing section 102, and the plugging section 104 is arranged by deviating from the water inlet pipe 100 and is close to the removing section 103, so that the water flow entering from the water inlet pipe 100 is prevented from directly impacting the plugging structure on the plugging section 104, and the water pressure borne by the plugging structure is reduced.
Specifically, the water passing section 102 is provided with a communication hole communicating with the water inlet pipe 100, the blocking section 104 is arranged close to the removing section 103 and deviated from the communication hole, and the water passing 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 steel bars, the plurality of reinforcing steel bars are arranged in a criss-cross mode to form a buffer frame 105 which is arranged longitudinally, and two ends of each reinforcing steel bar are welded on the inner side wall of the buffer section 106 respectively; the buffer frame 105 has an inner end surface facing the water passing section 102, a steel wire mesh is laid on the inner end surface of the buffer frame 105, the outer periphery of the steel wire mesh abuts against the inner side wall of the buffer section 106, and the steel wire mesh is fixedly connected with the plurality of steel bars respectively.
Thus, the impact of the water flow on the plugging plate 300 firstly needs to pass through the buffer section 106, and the impact of the water flow on the plugging plate 300 is reduced by the buffer action of the steel wire mesh on the buffer section 106 and the buffer frame 105.
The main beam 200 has a back surface facing the detaching section 103 and an upstream surface facing the water passing section 102, and after the main beams 200 are welded, a plurality of reinforcing ribs 202 are welded to the inner side wall of the plugging section 104, the reinforcing ribs 202 extend along the circumferential direction of the plugging section 104, and the reinforcing ribs 202 are abutted against the back surface of the main beam 200 from outside to inside along the direction from the detaching section 103 to the water passing section 102 and are welded to the back surface of the main beam 200.
When the water flow is filled in the water flow passage section 102, the water flow directly presses against the upstream surface of the plugging structure, and water pressure towards the backside surface is applied to the plugging structure, so that the reinforcing ribs 202 are arranged on the inner side wall of the plugging section 104 and press against the backside surface of the main beam 200 from outside to inside, and the main beam 200 can be supported and reinforced.
The middle part of the reinforcing rib 202 is welded with the back surface of the main beam 200, and two ends of the reinforcing rib 202 extend away from the side edge of the main beam 200 after respectively bypassing the side edge of the main beam 200 and the water-facing surface of the main beam 200 to form an extension section 203 extending along the circumferential direction of the plugging section 104; the reinforcing ribs 202 are respectively welded to the upstream surface of the main beam 200 and the side edges of the main beam 200, and the whole reinforcing rib 202 is welded to the inner side wall of the plugging section 104 along the axial direction of the reinforcing rib 202.
Like this, whole reinforcement muscle 202 is along the periphery winding of girder 200, and respectively with the periphery of girder 200 and the inside wall welding of shutoff section 104, reinforcement muscle 202 forms to enclose box-like encirclement to the junction of girder 200 with the inside wall of shutoff section 104, and reinforcement muscle 202 also welds with girder 200, and like this, whole girder 200 forms inside and outside two-layer welding with the inside wall of shutoff section 104, the steadiness of reinforcing girder 200, and secondly, the extension section 203 of reinforcement muscle 202 has increased the welding length of girder 200 with the inside wall of shutoff section 104.
The extension 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 extension section 203; in addition, the extension section 203 is arranged in a multi-section bent shape, the welding length of the extension section 203 and the inner side wall of the plugging section 104 is increased, and the extension section 203 is arranged in a multi-section bent shape, so that even if an intermittent impact plugging structure occurs in the water flow flowing process, the impact force of the water flow can be buffered through the bent arrangement of the extension section 203.
The secondary beams 201 transversely span the upstream faces of the main beams 200 and are respectively welded with the upstream faces of the main beams 200; like this, can strengthen the connection steadiness of secondary beam 201, and have the draw-in groove towards girder 200 on the secondary beam 201, girder 200 card is gone into in the draw-in groove back, carries out girder 200 again with the welding of secondary beam 201, not only plays the positioning action in the assembling process, and makes girder 200 and secondary beam 201 more integrated.
The plugging plate 300 is provided with an arc edge welded with the inner side wall of the plugging section 104, a longitudinal edge 301 welded on the main beam 200 and a transverse edge 302 welded on the secondary beam 201, wherein the arc edge extends along the circumferential direction of the plugging section 104, the longitudinal edge 301 extends along the axial direction of the main beam 200, and the transverse edge 302 extends along the axial direction of the secondary beam 201;
in the process of installing the plugging plate 300, firstly, 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 sides of the plurality of plugging plates 300 are sequentially butted to form a closed circumferential side circumferentially arranged around the entire circumference of the plugging section 104. The arc-shaped edge is welded with the inner side wall of the blocking section 104, the sealing between the arc-shaped edge of the blocking plate 300 and the inner side wall of the blocking section 104 can be ensured firstly, then the longitudinal edge 301 and the transverse edge 302 are welded, the longitudinal edge 301 is welded with the main beam 200, the transverse edge 302 is welded with the secondary beam 201, the position error of the transverse edge is in a larger adjusting range, and the defect that a gap appears between the inner side walls of the subsequent blocking plate 300 and the blocking section 104 is avoided.
Between adjacent plugging plates 300, a longitudinal gap is formed between adjacent longitudinal edges 301; a longitudinal strip is arranged between the longitudinal gaps, and comprises a longitudinal embedding section 401 embedded in the longitudinal gaps and a longitudinal cover section 400 connected to the outer end of the longitudinal embedding section 401;
the width of the longitudinal embedding section 401 is gradually reduced along the direction of embedding the longitudinal gap, so that a variable interval exists between two sides of the longitudinal embedding section 401 and the adjacent longitudinal side 301; the longitudinal gap is filled with a longitudinal elastic strip 402, after the longitudinal embedding section 401 is embedded into the longitudinal gap, the longitudinal elastic strip 402 is pressed against the longitudinal edge 301 to be compressed and deformed, the longitudinal elastic strip 402 is compressed and pressed against the longitudinal edge 301, the longitudinal capping section 400 closes an external opening of the longitudinal gap, and two sides of the longitudinal capping section 400 are respectively welded with the adjacent plugging plates 300.
After the longitudinal embedding section 401 is embedded into the longitudinal gap, the longitudinal elastic strip 402 is pressed to be 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 internally blocked by the longitudinal elastic strip 402, and elastic pressure is applied to the longitudinal edge 301, so that not only is better sealing achieved, but also the structure between the adjacent blocking plates 300 is more stable.
In addition, the two sides of the longitudinal cover segment 400 are respectively welded with the adjacent plugging plates 300, the external openings of the longitudinal gaps are sealed, the longitudinal gaps between the longitudinal edges 301 are sealed for the second time, and the adjacent plugging plates 300 are connected into a whole, so that the structure is more stable.
Between adjacent plugging plates 300, there is a lateral gap between adjacent lateral edges 302; arranging transverse strips between the transverse gaps, wherein the transverse strips comprise transverse embedding sections 501 embedded in the transverse gaps and transverse cover sections 500 connected to the outer ends of the transverse embedding sections 501;
the width of the lateral embedding segment 501 gradually decreases along the direction of embedding the lateral gap, such that there is a variable spacing between both sides of the lateral embedding segment 501 and the adjacent lateral edges 302; the transverse gap is filled with a transverse elastic strip 502, after the transverse embedding section 501 is embedded into the transverse gap, the transverse elastic strip 502 is pressed against the transverse edge 302 to be compressed and deformed, the transverse elastic strip 502 is compressed and pressed against the transverse edge 302, the transverse capping section 500 closes the outer opening of the transverse gap, and two sides of the transverse capping section 500 are respectively welded with the adjacent blocking plates 300.
After the transverse embedding section 501 is embedded into the transverse gap, the transverse elastic strip 502 is pressed to be compressed and deformed towards the transverse edge 302, the transverse elastic strip 502 is compressed and pressed against the transverse edge 302, the transverse gap between the transverse edges 302 is internally blocked by the transverse elastic strip 502, and elastic pressure is applied to the transverse edge 302, so that sealing is better, and the structure between the adjacent blocking plates 300 is more stable.
In addition, the two sides of the transverse capping segment 500 are respectively welded with the adjacent plugging plates 300, and the external openings of the transverse gaps are closed, so that the transverse gaps between the transverse edges 302 are sealed for the second time, and the adjacent plugging plates 300 are connected into a whole, so that the structure is more stable.
The guide strips 600 are welded on the inner side wall of the plugging section 104, the guide strips 600 are arranged towards the water passing section 102, and the guide strips 600 are arranged in a closed and surrounding manner along the circumferential direction of the plugging section 104;
the guide strip 600 has outer end faces 601 arranged toward the plugging plates 300, the outer end faces 601 of the guide strip 600 are respectively welded with the plurality of plugging plates 300, and the plurality of plugging plates 300 are further connected into an integral structure by using the guide strip 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 guide interval is formed 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 form a step-shaped transition, and after the outer section 602 is welded to the inner sidewall of the plugging section 104, there is a gap, that is, a water guiding gap, between the inner section 603 and the inner sidewall of the plugging section 104.
When the rivers of water passage section 102 carried out intermittent type form impact to block structure, utilize the water guide interval of the inside wall of inner section 603 and block section 104, can disperse the whole impact of rivers to, the gib block 600 also can cushion the direct impact of rivers to the periphery of shutoff board 300, reduces the impact force of rivers, guarantees whole block structure's steadiness, and reduces the impact of rivers simultaneously.
The guide strip 600 has an inner circumferential surface 604 arranged away from the inner side wall of the plugging section 104, and the inner circumferential surface 604 is arranged obliquely towards the inner side wall of the plugging section 104 along the extending direction from the removal 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 water flow, and reduce the direct impact of water flow on the periphery of the plugging plate 300.
In this embodiment, the blocking plate 300 has an inner end facing the water passing section 102, the inner end is arranged to protrude toward the water passing section 102 to form a protruding platform, and the outer periphery of the protruding platform is arranged to incline inward along the extending direction facing the water passing section 102, so that the protruding platform is formed to have a frustum shape, and after the water flow of the water passing section 102 backflushes to the inner end of the blocking plate 300, the backflushed water flow can be dispersed by the protruding inclined arrangement of the protruding platform, and the backflushing force of the water flow to the blocking plate 300 is reduced.
The protruding table is provided with an inner end face facing the water passing section 102, and the inner end face of the protruding table is arranged in a recessed mode away from the water passing section 102 to form a backflushing groove 306, so that the scattering effect of the protruding table on backflushing water flow is further enhanced.
The plurality of backflushing channels 307 are arranged in the protruding platform, the backflushing channels 307 penetrate through the protruding platform, the backflushing grooves 306 and the outer portions of the protruding platform are communicated, and the backflushing channels 307 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 backflushing to the blocking plate 300 enters the backflushing grooves 306, the backflushing water flow reversely impacts the backflushing water flow along the backflushing channels 307 to form relative impact with the backflushing water flow, and impact of the backflushing water flow on blocking is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The large-diameter water pressing pipeline plugging structure under the limited condition is characterized by comprising a water pipeline, wherein the water pipeline comprises a water passing section, a to-be-removed removing section and a plugging section, the water passing section is communicated with a water inlet pipe, and the plugging section is positioned between the water passing section and the removing section; a plurality of main beams which are longitudinally arranged 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 secondary beams which are transversely arranged are arranged in the plugging section, the secondary beams are arranged at intervals in parallel, the secondary beams transversely span the main beams and are welded with the main beams, and two ends of each secondary beam are respectively welded with the inner side wall of the plugging section;
the longitudinal plugging surface of the plugging section is divided into a plurality of plugging areas by the secondary beams and the main beams; a plurality of the 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 plugging plates seal the longitudinal plugging surface of the plugging section.
2. The plugging structure for the large-diameter water pressing pipeline under the limited 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 close to the dismantling section and is arranged to deviate from the communication hole along the flowing direction of water flow after entering the water passing section from the water inlet pipe; the water passing section is provided with a buffer section positioned between the communicating hole and the plugging section.
3. The confined large-diameter pressurized water pipeline blocking structure according to claim 2, wherein the buffer section is provided with a plurality of reinforcing bars, the plurality of reinforcing bars are arranged in a criss-cross manner to form a buffer frame arranged longitudinally, and two ends of each reinforcing bar are welded to the inner side wall of the buffer section respectively; the buffer frame is provided with an inner end face facing the water passing section, a steel wire mesh is laid on the inner end face of the buffer frame, the periphery of the steel wire mesh abuts against the inner side wall of the buffer section, and the steel wire mesh is fixedly connected with the plurality of reinforcing steel bars respectively.
4. The confined large-diameter pressurized water pipeline blocking structure according to claim 3, wherein the main beam has a back surface facing the dismantling section and a front surface facing the water passing section, and a plurality of reinforcing ribs are welded to the inner side wall of the blocking section, extend along the circumferential direction of the blocking section, abut against the back surface of the main beam from outside to inside in the direction from the dismantling section to the water passing section, and are welded to the back surface of the main beam.
5. The confined large-diameter water-pressing pipeline blocking structure as claimed in claim 4, wherein the middle part of the reinforcing rib is welded with the back surface of the main beam, and two ends of the reinforcing rib respectively extend away from the side edge of the main beam after bypassing the side edge of the main beam and the water-facing surface of the main beam to form an extension section extending along the circumferential direction of the blocking section; the reinforcing ribs are respectively welded with the upstream surface of the main beam and the side edge of the main beam, and the whole reinforcing rib is welded with the inner side wall of the plugging section along the axial direction of the reinforcing rib; along the direction of deviating from the side of girder, the extension section is arranged towards demolising the section slope, and the extension section is the curved form of multistage and arranges.
6. The confined large diameter pressurized water conduit block structure of claim 3 wherein a plurality of said secondary beams span the upstream faces of a plurality of primary beams and are welded to the upstream faces of a plurality of primary beams, respectively.
7. The confined large diameter pressurized water conduit block structure of claim 3 wherein said block plate has arcuate edges welded to the inside walls of the block section, longitudinal edges welded to the primary beam and transverse edges welded to the secondary beam, said arcuate edges being disposed along the circumferential extension of the block section, said longitudinal edges being disposed along the axial extension of the primary beam and said transverse edges being disposed along the axial extension of the secondary beam; the arc edge is welded with the inner side wall of the plugging section, the longitudinal edge is welded with the upstream face of the main beam, and the transverse edge is welded with the secondary beam.
8. The confined large diameter pressurized water conduit plugging structure of claim 7 wherein adjacent plugging plates have a longitudinal gap between adjacent longitudinal edges; a longitudinal strip is arranged between the longitudinal gaps and comprises a longitudinal embedding section embedded in the longitudinal gaps and a longitudinal cover section connected to the outer end of the longitudinal embedding section;
the width of the longitudinal embedding 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 embedding section is embedded into the longitudinal gap, the longitudinal elastic strip is pressed to be compressed and deformed towards the longitudinal edge, the longitudinal elastic strip is compressed and pressed against the longitudinal edge, the longitudinal sealing cover section seals an external opening of the longitudinal gap, and two sides of the longitudinal sealing cover section are respectively welded with adjacent sealing cover plates.
9. The confined large diameter pressurized water conduit plugging structure of claim 7 wherein adjacent plugging plates have a lateral gap between adjacent lateral edges; arranging a transverse strip between the transverse gaps, wherein the transverse strip comprises a transverse embedding section embedded in the transverse gaps and a transverse cover section connected to the outer end of the transverse embedding section;
along embedding the direction of transverse gap, the width of horizontal embedding section diminishes gradually, it has horizontal elasticity strip to fill in the transverse gap, after horizontal embedding section embedding transverse gap, support and press horizontal elasticity strip towards horizontal limit compressive deformation, horizontal elasticity strip compression is supporting and is pressing horizontal limit, the outside opening in transverse gap is sealed to horizontal closing cap section, and the both sides of horizontal closing cap section respectively with adjacent closing cap board welding.
10. The confined large-diameter water-pressing pipeline blocking structure as claimed in claim 3, wherein guide strips are welded on the inner side wall of the blocking section, the guide strips are arranged towards the water passing section, and the guide strips are arranged in a closed surrounding manner along the circumferential direction of the blocking section;
the guide strip is provided with outer end faces arranged towards the plugging plates, the outer end faces of the guide strip are respectively welded with the plugging plates, the guide strip is provided with an outer peripheral face towards the inner side wall of the plugging section, the outer peripheral face is provided with an outer section towards the plugging plates and an inner section 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 guide interval is formed between the inner section of the outer peripheral face and the inner side wall of the plugging section;
the guide strip is provided with an inner circumferential surface which is arranged to deviate from the inner side wall of the plugging section, and the inner circumferential surface is obliquely arranged towards the inner side wall of the plugging section along the extending direction from the detaching section to the water passing section.
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| CN202111575783.2A CN114352837B (en) | 2021-12-21 | 2021-12-21 | Large pipe diameter pressurized water pipeline plugging structure under limiting condition |
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| CN114352837B (en) | 2023-08-18 |
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