CN113042968A - Natural gas conveying pipeline - Google Patents
Natural gas conveying pipeline Download PDFInfo
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- CN113042968A CN113042968A CN202110237236.7A CN202110237236A CN113042968A CN 113042968 A CN113042968 A CN 113042968A CN 202110237236 A CN202110237236 A CN 202110237236A CN 113042968 A CN113042968 A CN 113042968A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to the technical field of conveying pipelines, and discloses a natural gas conveying pipeline, which comprises: the device comprises a base, wherein four corners of the top end of the base are respectively and rotatably connected with a plurality of screw rods through bearings, the outer walls of the screw rods are respectively screwed with a sliding block, the outer walls of the sliding blocks are fixedly provided with a pipeline, the top ends of the screw rods are respectively in interference fit with a rotating disc, the top end of the base is provided with a contraction mechanism, and the inner cavity of the pipeline is provided with a fixing mechanism; the retraction mechanism comprises: the hydraulic cylinder, the lifting plate, the first spring, the moving plate, the telescopic rod and the moving assembly; the hydraulic cylinders are fixedly installed at four corners of the top end of the base respectively, the lifting plate is fixedly installed at the top ends of the hydraulic cylinders, and the telescopic rods are fixedly installed at the bottom end of the lifting plate. This natural gas conveying pipeline has solved the problem that natural gas pipeline needs auxiliary assembly just can install and the inconvenient shift position of natural gas pipeline when the installation.
Description
Technical Field
The invention relates to the technical field of conveying pipelines, in particular to a natural gas conveying pipeline.
Background
The natural gas pipeline is a pipeline for conveying natural gas from an exploitation place or a treatment plant to an urban gas distribution center or an industrial enterprise user, is also called a gas conveying pipeline, is the only way for conveying a large amount of natural gas on land, and accounts for about half of the total length of the pipeline in the world.
The natural gas conveying pipeline of prior art need use the hoist and mount equipment to assist just can dock two natural gas pipeline when the installation, and the pipeline is the swing back and forth easily in the butt joint, leads to needing extravagant a large amount of time in two pipeline docks, and on the other hand, natural gas pipeline all is the metal material, leads to at its in-process very inconvenient moving, to these problems, provides a natural gas conveying pipeline.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a natural gas conveying pipeline to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a natural gas transportation pipeline comprising: the device comprises a base, wherein four corners of the top end of the base are respectively and rotatably connected with a plurality of screw rods through bearings, the outer walls of the screw rods are respectively screwed with a sliding block, the outer walls of the sliding blocks are fixedly provided with a pipeline, the top ends of the screw rods are respectively in interference fit with a rotating disc, the top end of the base is provided with a contraction mechanism, and the inner cavity of the pipeline is provided with a fixing mechanism;
the retraction mechanism comprises a hydraulic cylinder, a fixed screw, an internal thread sleeve, a lifting plate, a first spring, a movable plate, a telescopic rod and a movable assembly; the bottom ends of the two hydraulic cylinders are respectively and rotatably connected with an internal thread sleeve; fixing screws are symmetrically arranged on the left side and the right side of the central axis of the upper surface of the base, and inner thread sleeves are sleeved on the outer wall threads of the fixing screws; the lifting plate is fixedly arranged at the top ends of two symmetrically arranged hydraulic cylinders, the telescopic rods are fixedly arranged at the bottom ends of the lifting plate, the movable plate is fixedly arranged at the bottom ends of the telescopic rods and can be inserted into an inner cavity of the base in a sliding mode, the first springs are respectively sleeved on the outer walls of the telescopic rods, the top ends of the first springs are fixedly connected to the bottom end of the lifting plate, the bottom ends of the first springs are respectively fixedly connected to four corners of the top end of the movable plate, and the moving assemblies are respectively fixedly arranged at four corners of the bottom end of the movable plate;
when the device works, when a pipeline for conveying natural gas is required to be installed and used, a user firstly fixes the pipeline to the upper surface of the base, the hydraulic cylinder is driven to contract, the movable plate can drive the movable component to be in contact with the ground, the movable component can be a universal wheel, then the user moves the pipeline to a position required to be installed through the movable component, in the moving process, the pipeline can be counteracted by vibration through the limiting and elastic effects of the telescopic rod and the first spring, the pipeline is prevented from being toppled due to vibration in the pipeline moving process, the stability of the device is improved, and after two adjacent pipelines move to proper positions, a constructor pushes the two pipelines to enable the fixing mechanism to preliminarily position and insert the two adjacent pipelines; then, the hydraulic cylinder is started to enable the output end of the hydraulic cylinder to extend out, so that the lifting plate is driven to slide upwards, the movable plate can drive the movable assembly to slide upwards to the upper surface of the base, and the base is stably contacted with the sitting solid ground; after the base seats on the ground, the handle is detached, so that the inner threaded sleeve of the base is rotated and separated from the fixed screw rod, the contraction mechanism is convenient to take out, and the contraction mechanism can be reused in the installation and transportation of the next pipeline; then, a constructor synchronously rotates the four turntables on the two bases simultaneously to drive the screw rods to rotate, the four sliding blocks can drive the pipelines to descend under the action of the thread rotating force of the screw rods, so that the lower surfaces of the pipelines can be stably located on the upper surfaces of the bases, and meanwhile, the fixing screw rods can be inserted into the fixing mechanisms, so that preliminary positioning insertion between the two pipelines is further improved, then the pipelines subjected to preliminary positioning insertion are welded and assembled through a welding tool, and the phenomenon that the two pipelines shake during welding to influence the welding quality is prevented; the supporting height of the base provided by the invention to the pipelines does not influence the sealing welding of the welding equipment to the two adjacent pipelines; therefore, through the mutual matching of the arranged contraction mechanism and the fixing mechanism, the contraction mechanism enables a constructor to conveniently and quickly transport the natural gas conveying pipeline to the position to be installed, and the contraction mechanism can be taken down from the base, so that the contraction mechanism is convenient to reuse, and the cost of pipeline transportation and installation is reduced; the fixing mechanism can carry out mutual preliminary location grafting operation to two adjacent pipelines, has avoided the pipeline to appear rocking when installation and welded pipe, influences the welding precision of pipeline to the pipeline time and the cost of having practiced thrift natural gas transportation when the transportation is installed.
Preferably, the fixing mechanism comprises a positioning lantern ring, an elastic snap ring, an arc-shaped positioning seat, an arc-shaped cavity bag, a fixing seat, a sliding push rod and an arc-shaped push plate; an annular guide groove is formed in one end of the pipeline, and a clamping cavity is formed in the inner end of the inner cavity wall of the annular guide groove; a positioning sleeve ring is fixed at the other end of the pipeline, and the positioning sleeve ring and the annular guide groove are mutually inserted; the elastic snap ring is elastically clamped in the clamping cavity; the outer wall of the positioning lantern ring is provided with an annular clamping groove, and the annular clamping groove is elastically clamped and connected with the elastic clamping ring; the outer wall of the bottom end of the pipeline is symmetrically provided with arc-shaped positioning seats, and the bottom ends of the arc-shaped positioning seats are provided with extrusion positioning grooves; the bottom end notch of the extrusion positioning groove is aligned with the top end of the fixing screw rod, and an arc-shaped cavity bag is arranged inside the extrusion positioning groove; hydraulic oil is filled in the arc-shaped cavity bag; a plurality of mounting cavities are formed in the inner wall of the clamping cavity, and fixing seats are fixedly mounted in the mounting cavities; the bottom ends of the plurality of fixed seats are communicated with the arc-shaped cavity bag below the annular guide groove through oil pipes, and sliding push rods are inserted in the plurality of fixed seats in a sliding and sealing mode; the outer ends of the sliding push rods are connected with arc-shaped push plates, and the outer surfaces of the arc-shaped push rods are in extrusion, fitting and contact with the outer wall surface of the elastic snap ring; when two adjacent pipelines are required to be connected with each other, a constructor firstly clamps the elastic snap ring into the clamping cavity arranged at one end of one of the pipelines, then pushes the positioning sleeve ring arranged at one end of the other pipeline to enable the positioning sleeve ring to be inserted into one of the pipelines provided with the annular guide groove, so that the positioning sleeve ring can be inserted into the annular guide groove, and the annular clamping groove arranged on the positioning sleeve ring can be aligned with the elastic snap ring, and then the adjacent pipelines can be positioned, inserted and installed in advance by the installation mode, when the pipelines which are mutually inserted and aligned are driven by the screw rods to contact the upper surface of the base, the fixing screw rods arranged on the base can be correspondingly inserted into the arc-shaped positioning seats arranged on the lower surface of the pipeline, so that the arc-shaped cavity bags arranged in the arc-shaped positioning seats are compressed and deformed by the fixing screw rods, thereby in impressing its inside hydraulic oil a plurality of fixing bases, make hydraulic oil can promote the sliding push rod roll-off in the fixing base, thereby make a plurality of sliding push rods can promote a plurality of arc push rods and extrude the top to resilient clip ring, thereby make the card go into the resilient clip ring of block intracavity portion can slide the card and go into in the ring channel, and then can be inside the spacing block of position collar elasticity to the annular guide slot, and then make fixed establishment not only can play the effect of grafting location between two adjacent pipelines, simultaneously can be to the effect of preliminary fixed connection between two adjacent pipelines, further improve the stability and the accuracy of two adjacent pipelines when the welding.
Preferably, a plurality of arc-shaped guide grooves are uniformly formed in the outer wall of the positioning lantern ring, and elastic hot melt adhesive plates are arranged inside the arc-shaped guide grooves; one end of the elastic hot melt adhesive plate is fixed on the inner wall of the arc-shaped guide groove close to the annular clamping groove, and the other end of the elastic hot melt adhesive plate is connected with a guide push plate; the guide push plate is arranged in a sliding cavity of the inner wall of the arc-shaped guide groove far away from the annular clamping groove in a sliding and sealing manner; the sliding cavity is communicated with an arc-shaped cavity bag arranged below one end of the positioning sleeve ring through an oil guide groove; when the device works, after the adjacent connected pipelines fall onto the upper surface of the base, the upper surface of the base and the fixing screw rod at one end aligned with the positioning sleeve ring are correspondingly inserted into the arc-shaped positioning seat below the positioning sleeve ring, so that hydraulic oil in the arc-shaped cavity bag can be guided into the sliding cavity through the oil guide groove, the hydraulic oil can push the guide push plate to stretch out from the sliding cavity, the stretched guide push plate can compress the elastic hot melt adhesive plate into a corrugated shape to be attached to the inside of the annular guide groove, and the outer wall surface of the elastic hot melt adhesive plate compressed into the corrugated shape can be attached to the cavity wall of the annular guide groove; when two adjacent pipelines carry out the hot melt welding, the welding part of pipeline is heated and can make a plurality of elasticity hot melt adhesive plate of position collar outer wall compression can be heated and melt, can form the effect of solidifying the bonding after cooling between arc guide slot and annular guide slot inner wall when elasticity hot melt adhesive plate receives the hot melt, further improve two adjacent pipelines fastness and stability when the welding, can carry out the effect that the hot melt adhesive is sealed to the welding part inner wall between two adjacent pipelines after the welding simultaneously, prevent that current pipeline can only form the welded seal's of welding effect at the mouth of pipe outer wall formation of pipeline when the welding, can not play welded seal's effect in inside simultaneously, thereby influence the airtight after the pipeline welding.
Preferably, the arc-shaped guide groove is communicated with the annular clamping groove through a guide groove; solidification ring grooves are uniformly formed in the annular cavity wall of the annular guide groove, and notches of the solidification ring grooves are attached to the outer walls of the elastic hot melt adhesive plates; when the pipeline sealing device works, when the elastic hot melt adhesive plate is heated and melted between the arc-shaped guide groove and the annular guide groove, the hot melt adhesive in the arc-shaped guide groove flows into the space between the annular clamping groove and the clamping cavity through the guide groove, so that the flowing hot melt adhesive can be solidified and fixed on the elastic clamping ring after being solidified, meanwhile, the solidification of the hot melt adhesive can form a sealing effect on the annular clamping groove in the clamping cavity, and the phenomenon that the natural gas introduced into the pipeline leaks out due to the fact that the natural gas is generated between the positioning sleeve ring and the annular guide groove is prevented; meanwhile, after the elastic hot melt adhesive plate is melted, the hot melt adhesive can flow into the inside of the solidification annular groove, so that the hot melt adhesive can form an annular sealing ring in the solidification annular groove, and the sealing connection effect between pipelines is further improved.
Preferably, the outer surface of the end part of the guide push plate is arranged in an inclined plane, and the outer wall surface of the guide push plate and the outer wall surface of the positioning sleeve ring are both arranged in a burr surface manner; when the elastic hot melt adhesive plate works, the elastic hot melt adhesive plate can be compressed to form a corrugated shape through the arranged guide push plate, so that the elastic hot melt adhesive plate can be melted, and meanwhile, the sliding extension of the guide push plate can reduce the space volume of the arc-shaped guide groove, so that the hot melt adhesive volume generated after the elastic hot melt adhesive plate is heated and melted can fully flow into the annular clamping groove and the solidification annular groove, and the phenomenon that the annular guide groove and the arc-shaped guide groove are hollow due to insufficient hot melt adhesive volume after the elastic hot melt adhesive plate is melted is prevented; the end surface of the guide push plate is an inclined plane and a burr surface, so that the hot melt adhesive can flow into the outer surface of the guide push plate, and the guide push plate can be fixed.
Preferably, the outer wall of the plurality of the rotating discs is provided with an anti-slip edge.
Advantageous effects
Compared with the prior art, the invention provides a natural gas conveying pipeline, which has the following beneficial effects:
1. according to the natural gas pipeline transportation device, the contraction mechanism and the fixing mechanism are matched with each other, so that a constructor can conveniently and quickly transport a natural gas pipeline to a position to be installed, and the contraction mechanism can be taken down from the base, so that the contraction mechanism is convenient to reuse, and the cost of pipeline transportation and installation is reduced; fixing mechanism can carry out preliminary location grafting operation each other to two adjacent pipelines, has avoided the pipeline to appear rocking when installation and welded pipe, influences the welding precision of pipeline.
2. According to the invention, the fixing mechanism is arranged, so that the elastic snap ring clamped into the clamping cavity can be clamped into the annular clamping groove in a sliding manner, and the positioning sleeve ring can be elastically limited and clamped into the annular guide groove, so that the fixing mechanism not only can play a role in inserting and positioning two adjacent pipelines, but also can play a role in primary fixed connection between the two adjacent pipelines, and further the stability and accuracy of the two adjacent pipelines during welding are further improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a view of the assembled connection between two adjacent pipes according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 according to the present invention.
In the figure: 1. a base; 2. a screw; 3. a slider; 4. a pipeline; 41. an annular guide groove; 42. a clamping cavity; 43. a mounting cavity; 44. solidifying the annular groove; 5. a turntable; 6. a retracting mechanism; 61. a hydraulic cylinder; 62. a fixed screw 63 and an internal thread sleeve; 64. a lifting plate; 65. a first spring; 66. moving the plate; 67. a telescopic rod; 68. a moving assembly; 7. a fixing mechanism; 71. a positioning collar; 711. an annular neck; 712. an arc-shaped guide groove; 72. an elastic snap ring; 73. an arc-shaped positioning seat; 731. extruding the positioning groove; 74. an arc-shaped cavity pocket; 75. a fixed seat; 76. a sliding push rod; 77. an arc-shaped push plate; 8. an elastic hot-melt adhesive plate; 9. and (4) guiding the push plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a natural gas transportation pipeline includes: the device comprises a base 1, wherein four corners of the top end of the base 1 are respectively and rotatably connected with a plurality of screw rods 2 through bearings, the outer walls of the plurality of screw rods 2 are respectively in threaded connection with sliding blocks 3, pipelines 4 are fixedly arranged on the outer walls of the plurality of sliding blocks 3, the top ends of the plurality of screw rods 2 are respectively in interference fit with a rotating disc 5, a contraction mechanism 6 is arranged at the top end of the base 1, and a fixing mechanism 7 is arranged in the inner cavity of the pipeline 4;
the contraction mechanism 6 comprises a hydraulic cylinder 61, a fixed screw 62, an internal thread sleeve 63, a lifting plate 64, a first spring 65, a moving plate 66, a telescopic rod 67 and a moving assembly 68; the bottom ends of the two hydraulic cylinders 61 are respectively and rotatably connected with an internal thread sleeve 63; the left side and the right side of the central axis of the upper surface of the base 1 are symmetrically provided with fixed screws 62, and the outer wall of each fixed screw 62 is in threaded sleeve connection with an internal thread sleeve 63; the lifting plate 64 is fixedly installed at the top ends of the two symmetrically arranged hydraulic cylinders 61, the plurality of telescopic rods 67 are fixedly installed at the bottom end of the lifting plate 64, the moving plate 66 is fixedly installed at the bottom ends of the plurality of telescopic rods 67, the moving plate 66 is slidably inserted into the inner cavity of the base 1, the plurality of first springs 65 are respectively sleeved on the outer walls of the plurality of telescopic rods 67, the top ends of the plurality of first springs 65 are fixedly connected to the bottom end of the lifting plate 64, the bottom ends of the plurality of first springs 65 are respectively fixedly connected to four corners of the top end of the moving plate 66, and the plurality of moving assemblies 68 are respectively fixedly installed at four corners of the bottom end of the moving plate 66;
when the device works, when the pipeline 4 for conveying natural gas is required to be installed and used, a user firstly fixes the pipeline 4 to the upper surface of the base 1, the hydraulic cylinder 61 is driven to contract, the moving plate 66 can drive the moving assembly 68 to be in contact with the ground, the moving assembly 68 can be a universal wheel, then the user moves the pipeline 4 to a position required to be installed through the moving assembly 68, in the moving process, the pipeline 4 can be counteracted by vibration through the limiting and elastic effects of the telescopic rod 67 and the first spring 65, the pipeline 4 is prevented from being vibrated in the moving process, so that the pipeline 4 is toppled, the stability of the device is improved, and after two adjacent pipelines 4 move to proper positions, a constructor pushes the two pipelines 4 to enable the fixing mechanisms 7 to preliminarily position and insert the two adjacent pipelines 4; then, the hydraulic cylinder 61 is started to extend the output end of the hydraulic cylinder, so that the lifting plate 64 is driven to slide upwards, the moving plate 66 drives the moving assembly 68 to slide upwards to the upper surface of the base 1, and the base 1 is stably contacted with the sitting solid ground; after the base 1 is seated on the ground, at the moment, the handle is disassembled, so that the inner threaded sleeve 63 thereof is rotated and separated from the fixed screw 62, the contraction mechanism 6 is conveniently taken out, and the contraction mechanism 6 can be conveniently reused in the installation and transportation of the next pipeline 4; then, a constructor synchronously rotates the four turntables 5 on the two bases 1 at the same time to drive the screw rods 2 to rotate, under the action of the thread rotation force of the screw rods 2, the four slide blocks 3 can drive the pipelines 4 to descend, so that the lower surfaces of the pipelines 4 can be stably located on the upper surfaces of the bases 1, and meanwhile, the fixing screw rods 62 can be inserted into the fixing mechanisms 7, so that preliminary positioning insertion between the two pipelines 4 is further improved, and then the pipelines 4 subjected to preliminary positioning insertion are welded and assembled through a welding tool, so that the phenomenon that the two pipelines 4 shake during welding to influence the welding quality is prevented; the supporting height of the base 1 for the pipelines 4 does not influence the sealing welding of the welding equipment for the two adjacent pipelines 4; therefore, through the mutual matching of the arranged contraction mechanism 6 and the fixing mechanism 7, the contraction mechanism 6 enables a constructor to conveniently and quickly transport the natural gas conveying pipeline 4 to a position to be installed, and the contraction mechanism 6 can be taken down from the base 1, so that the contraction mechanism 6 is convenient to reuse, and the cost of the pipeline 4 during transportation and installation is reduced; fixing mechanism 7 can carry out mutual preliminary positioning grafting operation to two adjacent pipelines 4, has avoided pipeline 4 to appear rocking when installation and welded pipe way 4, influences pipeline 4's welding precision to the pipeline 4 time and the cost of having practiced thrift natural gas transportation when the transportation installation.
As an embodiment of the present invention, the fixing mechanism 7 includes a positioning collar 71, an elastic snap ring 72, an arc-shaped positioning seat 73, an arc-shaped cavity pocket 74, a fixing seat 75, a sliding push rod 76 and an arc-shaped push plate 77; an annular guide groove 41 is formed in one end of the pipeline 4, and a clamping cavity 42 is formed in the inner end of the inner cavity wall of the annular guide groove 41; a positioning lantern ring 71 is fixed at the other end of the pipeline 4, and the positioning lantern ring 71 and the annular guide groove 41 are mutually inserted; the elastic snap ring 72 is elastically clamped in the clamping cavity 42; an annular clamping groove 711 is formed in the outer wall of the positioning lantern ring 71, and the annular clamping groove 711 is elastically connected with the elastic clamping ring 72 in a clamping mode; the outer wall of the bottom end of the pipeline 4 is symmetrically provided with arc-shaped positioning seats 73, and the bottom ends of the arc-shaped positioning seats 73 are provided with extrusion positioning grooves 731; the bottom end notch of the extrusion positioning groove 731 is aligned with the top end of the fixing screw 62, and an arc-shaped cavity pocket 74 is arranged inside the extrusion positioning groove 731; the arc-shaped cavity bag 74 is filled with hydraulic oil; a plurality of mounting cavities 43 are formed in the inner wall of the clamping cavity 42, and fixing seats 75 are fixedly mounted in the mounting cavities 43; the bottom ends of the plurality of fixed seats 75 are communicated with the arc-shaped cavity bag 74 below the annular guide groove 41 through oil pipes, and sliding push rods 76 are inserted in the plurality of fixed seats 75 in a sliding and sealing mode; the outer ends of the sliding push rods 76 are connected with arc push plates 77, and the outer surfaces of the arc push rods 77 are in extrusion, fitting and contact with the outer wall surface of the elastic snap ring 72;
when the pipeline installation device works, when two adjacent pipelines 4 need to be connected with each other, at this time, a constructor needs to firstly clamp the elastic snap ring 72 into the clamping cavity 42 formed at one end of one of the pipelines 4, then the constructor pushes the positioning sleeve ring 71 arranged at one end of the other pipeline 4 to enable the positioning sleeve ring 71 to be inserted into one of the pipelines 4 formed with the annular guide groove 41, so that the positioning sleeve ring 71 can be inserted into the annular guide groove 41, and the annular clamping groove 711 formed in the positioning sleeve ring 71 can be aligned with the elastic snap ring 72, and in the installation manner, the adjacent pipelines 4 can be positioned, inserted and installed in advance, and after the pipelines 4 aligned with each other in an inserted manner are driven by the screw rods 2 to contact with the upper surface of the base 1, the fixing screw rods 62 arranged on the base 1 can be correspondingly inserted into the arc-shaped positioning seats 73 arranged on the lower surface of the pipelines, so that the arc-shaped cavity pocket 74 arranged inside the arc-shaped positioning seat 73 is compressed and deformed by the extrusion force of the fixing screw 62, thereby pressing the hydraulic oil inside into the plurality of fixed seats 75, so that the hydraulic oil can push the sliding push rod 76 to slide out in the fixed seats 75, so that the plurality of sliding push rods 76 can push the plurality of arc push rods 77 to extrude and push the elastic snap ring 72, so that the resilient snap ring 72 snapped into the snap cavity 42 can be slidably snapped into the annular snap groove 711, thereby the positioning lantern ring 71 can be elastically limited and clamped in the annular guide groove 41, so that the fixing mechanism 7 not only can play a role in inserting and positioning between two adjacent pipelines 4, simultaneously, the stability and the accuracy of the two adjacent pipelines 4 during welding can be further improved under the action of primary fixed connection between the two adjacent pipelines 4.
As an embodiment of the present invention, the outer wall of the positioning collar 71 is uniformly provided with a plurality of arc-shaped guide grooves 712, and the elastic hot melt adhesive plate 8 is arranged inside the plurality of arc-shaped guide grooves 712; one end of the elastic hot melt adhesive plate 8 is fixed on the inner wall of the arc-shaped guide groove 712 close to the annular clamping groove 711, and the other end of the elastic hot melt adhesive plate 8 is connected with a guide push plate 9; the guide push plate 9 is arranged in a sliding cavity of the inner wall of the arc-shaped guide groove 712 far away from the annular clamping groove 711 in a sliding and sealing manner; the sliding cavity is communicated with an arc-shaped cavity bag 74 arranged below one end of the positioning lantern ring 71 through an oil guide groove; during operation, when the adjacent connected pipelines 4 fall onto the upper surface of the base 1, the fixing screw 62 at one end of the upper surface of the base 1 aligned with the positioning sleeve ring 71 is correspondingly inserted into the arc-shaped positioning seat 73 below the positioning sleeve ring 71, so that hydraulic oil in the arc-shaped cavity bag 74 can be guided into the sliding cavity through the oil guide groove, the hydraulic oil can push the guide push plate 9 to extend out from the sliding cavity, the extended guide push plate 9 can compress the elastic hot-melt adhesive plate 8 to form a corrugated shape to be attached to the inside of the annular guide groove 41, and the outer wall surface of the elastic hot-melt adhesive plate 8 compressed to form the corrugated shape can be attached to the cavity wall of the annular guide groove 41; when two adjacent pipelines 4 carry out the hot melt welding, the welding part of pipeline 4 is heated and can make a plurality of elasticity hot melt adhesive plate 8 of position collar 71 outer wall compression be heated and melt, can form the effect of solidification bonding after the cooling between arc guide slot 712 and 41 inner walls of annular guide slot after elasticity hot melt adhesive plate 8 is heated and melts, further improve the fastness and the stability of two adjacent pipelines 4 when the welding, can carry out the effect that the hot melt adhesive is sealed to the welding part inner wall between two adjacent pipelines 4 after the welding simultaneously, prevent that current pipeline 4 can only form the welded seal's of welding at the mouth of pipe outer wall of pipeline 4 when the welding effect, can not play welded seal's effect in inside simultaneously, thereby influence the airtight of pipeline 4 welding back.
As an embodiment of the present invention, the arc-shaped guide groove 712 is communicated with the annular groove 711 by a flow guide groove; the annular cavity wall of the annular guide groove 41 is uniformly provided with a solidification ring groove 44, and the notches of the solidification ring groove 44 are attached to the outer walls of the plurality of elastic hot melt adhesive plates 8; when the elastic hot melt adhesive plate 8 is heated and melted between the arc-shaped guide groove 712 and the annular guide groove 41, the hot melt adhesive in the arc-shaped guide groove 712 flows into the space between the annular clamping groove 711 and the clamping cavity 42 through the guide groove, so that the flowing hot melt adhesive can solidify and fix the elastic clamping ring 72 after solidification, and meanwhile, the solidification of the hot melt adhesive can form a sealing effect on the annular clamping groove 711 in the clamping cavity 42, so that the natural gas introduced into the pipeline 4 is prevented from generating a sealing leakage phenomenon between the positioning sleeve ring 71 and the annular guide groove 41; meanwhile, after the elastic hot melt adhesive plate 8 is melted, the hot melt adhesive flows into the solidification ring groove 44, so that the hot melt adhesive can form an annular sealing ring inside the solidification ring groove 44, and the sealing connection effect between the pipelines 4 is further improved.
As an embodiment of the present invention, the outer surface of the end of the guide pushing plate 9 is an inclined surface, and both the outer wall surface of the guide pushing plate 9 and the outer wall surface of the positioning collar are burr surfaces; during operation, the elastic hot melt adhesive plate 8 can be compressed to form a corrugated shape through the arranged guide push plate 9, so that the elastic hot melt adhesive plate 8 can be melted, and meanwhile, the sliding extension of the guide push plate 9 can reduce the space volume of the arc-shaped guide groove 712, so that the hot melt adhesive volume generated after the elastic hot melt adhesive plate 8 is heated and melted can fully flow into the annular clamping groove 711 and the solidification annular groove 44, and the phenomenon that empty drums are generated between the annular guide groove 41 and the arc-shaped guide groove 712 due to insufficient hot melt adhesive volume after the elastic hot melt adhesive plate 8 is melted is prevented; the end surface of the guide push plate 9 is an inclined surface and a burr surface, so that the hot melt adhesive can flow into the outer surface of the guide push plate 9, and the guide push plate 9 can be fixed.
In one embodiment of the present invention, the outer wall of the plurality of rotating discs 5 is provided with an anti-slip rib.
The working principle is as follows: when the device works, when the pipeline 4 for conveying natural gas is required to be installed and used, a user firstly fixes the pipeline 4 to the upper surface of the base 1, the hydraulic cylinder 61 is driven to contract, the moving plate 66 can drive the moving assembly 68 to be in contact with the ground, the moving assembly 68 can be a universal wheel, then the user moves the pipeline 4 to a position required to be installed through the moving assembly 68, in the moving process, the pipeline 4 can be counteracted by vibration through the limiting and elastic effects of the telescopic rod 67 and the first spring 65, the pipeline 4 is prevented from being vibrated in the moving process, so that the pipeline 4 is toppled, the stability of the device is improved, and after two adjacent pipelines 4 move to proper positions, a constructor pushes the two pipelines 4 to enable the fixing mechanisms 7 to preliminarily position and insert the two adjacent pipelines 4; then, the hydraulic cylinder 61 is started to extend the output end of the hydraulic cylinder, so that the lifting plate 64 is driven to slide upwards, the moving plate 66 drives the moving assembly 68 to slide upwards to the upper surface of the base 1, and the base 1 is stably contacted with the sitting solid ground; after the base 1 is seated on the ground, at the moment, the handle is disassembled, so that the inner threaded sleeve 63 thereof is rotated and separated from the fixed screw 62, the contraction mechanism 6 is conveniently taken out, and the contraction mechanism 6 can be conveniently reused in the installation and transportation of the next pipeline 4; then, a constructor synchronously rotates the four turntables 5 on the two bases 1 at the same time to drive the screw rods 2 to rotate, under the action of the thread rotation force of the screw rods 2, the four slide blocks 3 can drive the pipelines 4 to descend, so that the lower surfaces of the pipelines 4 can be stably located on the upper surfaces of the bases 1, and meanwhile, the fixing screw rods 62 can be inserted into the fixing mechanisms 7, so that preliminary positioning insertion between the two pipelines 4 is further improved, and then the pipelines 4 subjected to preliminary positioning insertion are welded and assembled through a welding tool, so that the phenomenon that the two pipelines 4 shake during welding to influence the welding quality is prevented; the supporting height of the base 1 provided by the invention on the pipelines 4 does not influence the sealing welding of the welding equipment on the two adjacent pipelines 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A natural gas transportation pipeline comprising: base (1), its characterized in that: four corners of the top end of the base (1) are respectively and rotatably connected with a plurality of screw rods (2) through bearings, the outer walls of the screw rods (2) are respectively in threaded connection with sliding blocks (3), pipelines (4) are fixedly installed on the outer walls of the sliding blocks (3), the top ends of the screw rods (2) are respectively in interference fit with a rotating disc (5), a contraction mechanism (6) is arranged at the top end of the base (1), and a fixing mechanism (7) is arranged in an inner cavity of each pipeline (4);
the contraction mechanism (6) comprises a hydraulic cylinder (61), a fixed screw (62), an internal thread sleeve (63), a lifting plate (64), a first spring (65), a moving plate (66), a telescopic rod (67) and a moving assembly (68); the bottom ends of the two hydraulic cylinders (61) are respectively and rotatably connected with an internal thread sleeve (63); fixing screws (62) are symmetrically arranged on the left side and the right side of a central axis of the upper surface of the base (1), and an internal thread sleeve (63) is sleeved on the outer wall of each fixing screw (62) in a threaded manner; the lifting plate (64) is fixedly installed at the top ends of two hydraulic cylinders (61) which are symmetrically arranged, the telescopic rods (67) are fixedly installed at the bottom ends of the lifting plate (64), the moving plate (66) is fixedly installed at the bottom ends of the telescopic rods (67), the moving plate (66) can be slidably inserted into an inner cavity of the base (1), the first springs (65) are sleeved on the outer walls of the telescopic rods (67) respectively, the top ends of the first springs (65) are fixedly connected to the bottom ends of the lifting plate (64), the bottom ends of the first springs (65) are fixedly connected to four corners of the top end of the moving plate (66) respectively, and the moving assemblies (68) are fixedly installed at four corners of the bottom end of the moving plate (66) respectively.
2. A natural gas transportation pipeline according to claim 1, wherein: the fixing mechanism (7) comprises a positioning lantern ring (71), an elastic snap ring (72), an arc-shaped positioning seat (73), an arc-shaped cavity bag (74), a fixing seat (75), a sliding push rod (76) and an arc-shaped push plate (77); an annular guide groove (41) is formed in one end of the pipeline (4), and a clamping cavity (42) is formed in the inner end of the inner cavity wall of the annular guide groove (41); a positioning sleeve ring (71) is fixed at the other end of the pipeline (4), and the positioning sleeve ring (71) and the annular guide groove (41) are mutually inserted; the elastic snap ring (72) is elastically clamped in the clamping cavity (42); the outer wall of the positioning lantern ring (71) is provided with an annular clamping groove (711), and the annular clamping groove (711) is elastically clamped and connected with the elastic clamping ring (72); the outer wall of the bottom end of the pipeline (4) is symmetrically provided with arc-shaped positioning seats (73), and the bottom ends of the arc-shaped positioning seats (73) are provided with extrusion positioning grooves (731); the bottom end notch of the extrusion positioning groove (731) is aligned with the top end of the fixed screw rod (62), and an arc-shaped cavity bag (74) is arranged inside the extrusion positioning groove (731); the arc-shaped cavity bag (74) is filled with hydraulic oil; a plurality of mounting cavities (43) are formed in the inner wall of the clamping cavity (42), and fixing seats (75) are fixedly mounted in the mounting cavities (43); the bottom ends of the fixed seats (75) are communicated with the arc-shaped cavity bag (74) below the annular guide groove (41) through oil pipes, and sliding push rods (76) are inserted in the fixed seats (75) in a sliding and sealing mode; the outer ends of the sliding push rods (76) are connected with arc-shaped push plates (77), and the outer surfaces of the arc-shaped push rods (77) are in extrusion, fitting and contact with the outer wall surface of the elastic clamping ring (72).
3. A natural gas transportation pipeline according to claim 2, wherein: a plurality of arc-shaped guide grooves (712) are uniformly formed in the outer wall of the positioning lantern ring (71), and elastic hot melt adhesive plates (8) are arranged in the arc-shaped guide grooves (712); one end of the elastic hot melt adhesive plate (8) is fixed on the inner wall of the arc-shaped guide groove (712) close to the annular clamping groove (711), and the other end of the elastic hot melt adhesive plate (8) is connected with a guide push plate (9); the guide push plate (9) is arranged in a sliding cavity of the inner wall of the arc-shaped guide groove (712) far away from the annular clamping groove (711) in a sliding and sealing manner; the sliding cavity is communicated with an arc-shaped cavity bag (74) arranged below one end of the positioning lantern ring (71) through an oil guide groove.
4. A natural gas transportation pipeline according to claim 3, wherein: the arc-shaped guide groove (712) is communicated with the annular clamping groove (711) through a guide groove; and a solidification ring groove (44) is uniformly formed in the wall of the annular cavity of the annular guide groove (41), and the notches of the solidification ring groove (44) are attached to the outer walls of the elastic hot melt adhesive plates (8).
5. A natural gas transportation pipeline according to claim 4, wherein: the outer surface of the end part of the guide push plate (9) is an inclined plane, and the outer wall surface of the guide push plate (9) and the outer wall surface of the positioning sleeve ring are both burr surfaces.
6. A natural gas transportation pipeline according to claim 2, wherein: the outer wall of the plurality of turntables (5) is provided with anti-slip ribs.
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| CN114576561A (en) * | 2022-02-21 | 2022-06-03 | 河南理工大学 | Natural gas conveying pipeline safety device |
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Effective date of registration: 20221201 Address after: Floor 3, Happy Home Building, City Highland Garden, No. 71, Renmin Avenue Middle, Zhanjiang Economic and Technological Development Zone, Zhanjiang, Guangdong 524000 Applicant after: Zhanjiang Xinao Gas Development Co.,Ltd. Address before: Room 1501, building 5, Ruiyuan, Guannan Shangyu, No.1, Xinguang Road, Wuhou District, Chengdu, Sichuan 610000 Applicant before: Liu Dong |
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