CN116293147B - LNG ship gas double-wall pipe connecting device - Google Patents
LNG ship gas double-wall pipe connecting device Download PDFInfo
- Publication number
- CN116293147B CN116293147B CN202310234682.1A CN202310234682A CN116293147B CN 116293147 B CN116293147 B CN 116293147B CN 202310234682 A CN202310234682 A CN 202310234682A CN 116293147 B CN116293147 B CN 116293147B
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- Prior art keywords
- arm
- connection
- shaped plate
- connection boss
- spring
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000003949 liquefied natural gas Substances 0.000 description 21
- 238000001125 extrusion Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- 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
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to the technical field of LNG ships, in particular to a gas double-wall pipe connecting device of an LNG ship, which comprises two outer pipes, an inner pipe, a first sealing connection boss and a second sealing connection boss, wherein four mounting tables are arranged on the surface of the first sealing connection boss in an annular array manner, external fixing units for fixedly connecting the outer pipe with the first sealing connection boss are arranged on the four mounting tables, the four external fixing units form a fixing mechanism, a clamping and supporting mechanism for fixing the inner pipe is arranged in the mounting groove, and the second sealing connection boss is provided with the same structure as that on the first sealing connection boss; the external fixing unit is arranged, and the external fixing unit can be used for conveniently observing the welding seam between the first sealing connection boss and the outer pipe body and the welding seam between the second sealing connection boss and the outer pipe body in the use process, so that workers can conveniently observe and maintain the welding seam at the joint of the pipeline, and the safety of the pipeline in operation is further improved.
Description
Technical Field
The invention relates to the technical field of LNG ships, in particular to a gas double-wall pipe connecting device of an LNG ship.
Background
The utility model provides a liquefied natural gas ship, is abbreviated as LNG ship, refers to the "boats and ships" of special transportation liquefied natural gas, and the structural style of cargo tank can divide into independent storage tank type and diaphragm type, and the former is with cylindricality, tank-shaped, spherical equi-shape storage tank is placed in the ship, and the latter adopts the bivalve structure, and the inner shell just is the bearing shell of cargo tank, compares with the stand alone type, and the advantage of diaphragm type is that volume utilization is high, and structure light in weight, therefore newly-built liquefied natural gas ship especially large-scale, adopts the diaphragm type structure mostly.
The LNG ship gas double-wall pipe connecting device disclosed in China patent CN202110852448.6 uses a fixing structure to fix the welding seam connection part of the outer pipe body and the first sealing boss and the welding seam connection part of the outer pipe body and the second sealing boss, so that the stability of the welding seam connection part of the outer pipe body is improved, and the welding seam is completely covered by the fixing structure; because the service time of the ship is long, the welding seams are required to be inspected and maintained regularly, and the welding seams which cannot be observed increase the overhaul difficulty, so that the navigation safety of the ship is threatened.
Disclosure of Invention
According to the LNG ship gas double-wall pipe connecting device, the external fixing unit is arranged, and the external fixing unit is used for conveniently observing the welding seam between the first sealing connection boss and the outer pipe body and the welding seam between the second sealing connection boss and the outer pipe body in the use process, so that workers can conveniently observe and maintain the welding seam at the connecting position of the pipeline, and the safety of the pipeline in operation is improved.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
the utility model provides a LNG ship gas double-wall pipe connecting device, including two outer body and interior body, still include first sealing connection boss and second sealing connection boss, the one end that bolted connection end was kept away from to first sealing connection boss and the end connection of an outer body, the one end that bolted connection end was kept away from to second sealing connection boss and the end connection of another outer body, first sealing connection boss is provided with four mount tables towards the surface annular array of outer body one end rather than being connected, annular mounting groove has been seted up on the inner wall of first sealing connection boss, all be provided with the external fixed unit that is used for fixed connection outer body and first sealing connection boss on four mount tables, four external fixed units constitute fixed establishment, be provided with the tight supporting mechanism of clamp that is used for fixed interior body in the mounting groove, be provided with on the second sealing connection boss with the first sealing connection boss on the same structure.
Preferably, the external fixed unit is including setting up the L template in the mount table top, the horizontal segment of L template is parallel with the surface of mount table, be provided with the high regulation structure that can change L template distance from the mount table on the mount table, the upper end of the vertical section of L template is provided with the slope towards outer body and can adjust the arm that pushes down of self length, the tip that pushes down the arm and keeps away from the L template is provided with the extrusion piece, the lower extreme of the vertical section of L template is provided with the passive extrusion arm, the tip that the L template was kept away from to the passive extrusion arm is provided with the clamp splice, the clamp splice is in the below of extrusion piece.
Preferably, the height adjusting structure comprises a height adjusting threaded column, an annular limiting plate is arranged in the middle of the height adjusting threaded column, one end of the height adjusting threaded column penetrates through an L-shaped plate to be in threaded connection with the mounting table, the annular limiting plate is pressed on the upper surface of the horizontal section of the L-shaped plate, a first spring is sleeved on the height adjusting threaded column, one end of the first spring is connected with the lower surface of the horizontal section of the L-shaped plate, the other end of the first spring is connected with the upper surface of the mounting table, at least one limiting sliding column is vertically arranged on one side of the height adjusting threaded column, one end of the limiting sliding column is connected with the mounting table, the L-shaped plate is in sliding connection with the limiting sliding column, a limiting stud is arranged on the height adjusting threaded column along the axis direction of the L-shaped plate, and the lower end of the limiting stud is connected with the mounting table.
Preferably, the pushing arm comprises a first connecting arm which is obliquely arranged, the higher end of the first connecting arm is hinged with the upper end of the vertical section of the L-shaped plate, the lower end of the first connecting arm is provided with a second connecting arm, one end of the first connecting arm, which faces the second connecting arm, is provided with a plurality of first limiting sliding rods, one end of the second connecting arm, which faces the first connecting arm, is provided with jacks matched with the first limiting sliding rods, the second connecting arm is in sliding connection with the first limiting sliding rods, the first limiting sliding rods are sleeved with second springs, one ends of the second springs are connected with the end faces of the first connecting arms, the other ends of the second springs are connected with the end faces of the second connecting arms, the middle parts of the first connecting arms are provided with length adjusting structures capable of adjusting the distance between the second connecting arms and the first connecting arms, two sides of the first connecting arms are respectively provided with elastic connecting arms, one ends of the elastic connecting arms are connected with the middle parts of one sides of the first connecting arms, and the other ends of the elastic connecting arms are connected with the middle parts of one sides of the vertical section of the L-shaped plate.
Preferably, the middle part symmetry of first linking arm is provided with two first spacing spouts, the middle part of the terminal surface of second linking arm orientation first linking arm is provided with the spliced pole, length adjustment structure is including setting up the screw thread sleeve between two first spacing spouts, screw thread sleeve is provided with two spacing sliders along its diameter direction symmetry, spacing slider and first spacing spout sliding connection, screw thread sleeve is connected with the spliced pole towards the one end of second linking arm, screw thread sleeve's the other end is provided with length adjustment screw thread post along its axis direction, length adjustment screw thread post's one end and screw thread sleeve threaded connection, length adjustment screw thread post's the other end and first linking arm are connected, length adjustment screw thread post's surface cover is equipped with rotation adjustment head, rotation adjustment head is close to length adjustment screw thread post and first linking arm connected one end, and rotation adjustment head and length adjustment screw thread post fixed connection.
Preferably, the length adjusting threaded column is provided with a plurality of position holes along the diameter direction thereof, the plurality of position holes are arranged in an array along the axial direction of the length adjusting threaded column, and the position holes are internally provided with positioning pins.
Preferably, a connecting plate is arranged between the clamping block and the L-shaped plate, one end of the connecting plate is hinged with the L-shaped plate, the other end of the connecting plate is connected with the clamping block, two opposite side surfaces of the clamping block are provided with two mutually parallel second limiting sliding grooves, a connecting sliding block is vertically arranged between the clamping block and the extrusion block, one end of the connecting sliding block is fixedly connected with the extrusion block, and the other end of the connecting sliding block is in sliding connection with the second limiting sliding grooves.
Preferably, the clamping and supporting mechanism comprises an installation ring arranged in the installation groove, two clamping rings are symmetrically arranged in the middle of the installation ring around the axis of the installation ring, two elastic supporting arms are arranged between each clamping ring and the installation ring, the two elastic supporting arms are symmetrically arranged around the middle surface of the clamping ring, connecting lines between the two elastic supporting arms are orthogonal, and rubber pads are arranged on the inner walls of the clamping rings.
Preferably, the elastic support arm comprises a base, the base is arranged on the mounting ring, one end of the base is provided with a main support arm hinged with the base, one end of the main support arm away from the base is provided with a main telescopic rod, the main telescopic rod is in sliding connection with the main support arm, a third spring is sleeved on the main telescopic rod, one end of the third spring is connected with one end of the main support arm, the other end of the third spring is connected with one end of the main telescopic rod away from the main support arm, the other end of the base is provided with an inclined support arm hinged with the inclined support arm, one end of the inclined support arm away from the base is provided with an inclined telescopic rod, one end of the inclined telescopic rod away from the inclined support arm is hinged with one end of the main support arm away from the base, a fourth spring is sleeved on the inclined telescopic rod, one end of the fourth spring is connected with one end of the inclined support arm, and the other end of the fourth spring is connected with one end of the inclined telescopic rod away from the inclined support arm.
Preferably, a second limiting slide rod is arranged between two symmetrical clamping rings arranged on the first sealing connection boss and the second sealing connection boss, two ends of the second limiting slide rod are respectively in sliding connection with the two clamping rings, an annular stop block is arranged in the middle of the second limiting slide rod, two ends of the annular stop block are respectively sleeved with a fifth spring, one end of each fifth spring is connected with the annular stop block, and the other end of each fifth spring is connected with the clamping ring.
Compared with the prior art, the invention has the beneficial effects that:
1. the external fixing unit is arranged, so that the shearing force at the joint of the first sealing connection boss and the outer pipe body and the shearing force at the joint of the second sealing connection boss and the outer pipe body are reduced, and meanwhile, the external fixing unit is convenient to observe the welding seam between the first sealing connection boss and the outer pipe body and the welding seam between the second sealing connection boss and the outer pipe body in the use process, thereby being convenient for workers to observe and maintain the welding seam at the joint of the pipelines and further improving the safety of the pipelines in operation.
2. The clamping rings and the elastic supporting arms are arranged, when the first sealing connection boss and the second sealing connection boss are completely attached, the elastic supporting arms shrink, and the two clamping rings respectively move towards the inside of the first sealing connection boss and the inside of the second sealing connection boss and move towards the inner pipe body, so that the inner pipe body is clamped when the two outer pipe bodies are connected.
Drawings
FIG. 1 is a front view of a fuel gas double-wall pipe connection device for an LNG ship;
FIG. 2 is a left side view of a fuel gas double-wall pipe connection device for an LNG ship;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is a perspective view of a fuel gas double-wall pipe connection device of an LNG ship;
FIG. 5 is a perspective view of a first seal connection boss and an external fixing unit in a gas double-wall pipe connection device of an LNG ship;
FIG. 6 is a front view of a first seal connection boss, an L-shaped plate and a height adjustment structure in a gas double-wall pipe connection device for an LNG ship;
FIG. 7 is a perspective view of an L-shaped plate and a hold-down arm in a gas double-wall pipe connection device for an LNG ship;
FIG. 8 is a cross-sectional view of a first connecting arm, a second connecting arm and a length adjustment structure in a fuel gas double-wall pipe connecting device for an LNG ship;
FIG. 9 is a partial enlarged view at B in FIG. 8;
FIG. 10 is a perspective view of an L-shaped plate and a passive squeeze arm in a gas double-wall pipe connection device for an LNG ship;
FIG. 11 is a perspective view of a first seal attachment boss and clamp support mechanism in an LNG ship gas double-walled pipe connection;
fig. 12 is a perspective view of two clamping and supporting mechanisms in a gas double-wall pipe connecting device of an LNG ship, wherein one mounting ring is hidden.
The reference numerals in the figures are:
1-an outer tube body;
2-an inner tube;
3-a first sealing connection boss; 31-a mounting table; 32-mounting slots; 33-convex rings;
4-a second sealing connection boss; 41-slots;
5-an external fixing unit;
a 51-L-shaped plate;
52-height adjustment structure; 521-height adjusting threaded posts; 5211-annular limiting plates; 522-a first spring; 523-limit slide column; 524-limit studs;
53-hold-down arm; 531-extruding the block; 532—a first connecting arm; 5321 a first limit chute; 533-first limit slide bar; 534-a second spring; 535-a second connecting arm; 5351-a connecting column; 536-a length adjustment structure; 5361-a threaded sleeve; 5362-a length-adjusting threaded post; 5363-rotating the adjustment head; 5364-locating pins; 537-resilient connecting arms;
54-passive squeeze arms; 541-clamping blocks; 5411-a second limit chute; 542-connecting plates; 543-connecting a sliding block;
6-clamping and supporting mechanism;
61-mounting a circular ring;
62-a clamping ring;
63-an elastic support arm; 631-a base; 632-main support arms; 633-primary telescoping rod; 634-third springs; 635-diagonal support arm; 636-oblique telescopic rod; 637-fourth spring;
64-rubber pads;
65-a second limit slide rod; 651-ring stop;
66-fifth spring;
7-a first sealing rubber ring;
8-a second sealing rubber ring.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 12, there is shown: the utility model provides a LNG ship gas double-wall pipe connecting device, including two outer body 1 and interior body 2, still include first sealing connection boss 3 and second sealing connection boss 4, the one end that the bolt connection end was kept away from to first sealing connection boss 3 and the end connection of an outer body 1, the one end that the bolt connection end was kept away from to second sealing connection boss 4 and the end connection of another outer body 1, the surface annular array of the outer body 1 one end that first sealing connection boss 3 orientation was connected with it is provided with four mount tables 31, annular mounting groove 32 has been seted up on the inner wall of first sealing connection boss 3, all be provided with the external fixed unit 5 that is used for fixed connection outer body 1 and first sealing connection boss 3 on four mount tables 31, four external fixed units 5 constitute fixed establishment, be provided with the clamp support mechanism 6 that is used for fixed interior body 2 in the mounting groove 32, be provided with on the second sealing connection boss 4 with the same structure on the first sealing connection boss 3.
Two outer body 1 respectively with first sealing connection boss 3 and the welding of second sealing connection boss 4, the terminal surface of first sealing connection boss 3 towards second sealing connection boss 4 is provided with bulge loop 33, slot 41 has been seted up to the terminal surface of second sealing connection boss 4 towards first sealing connection boss 3, be provided with first sealing rubber circle 7 in slot 41, be provided with second sealing rubber circle 8 between two clamping mechanism, press from both sides tight supporting mechanism 6 and advance the location to inner tube 2, then use the bolt to connect first sealing connection boss 3 and second sealing connection boss 4, in this process, press from both sides tight supporting mechanism 6 with inner tube 2 clamp, then four external fixing unit 5 on the first sealing connection boss 3 will be fixed with outer tube 1 that first sealing connection boss 3 is connected, external fixing unit 5 on the second sealing connection boss 4 will be fixed with outer tube 1 that second sealing connection boss 4 is connected, external fixing unit 5 has reduced the shearing force of first sealing connection boss 3 and outer tube 1 junction and second sealing connection boss 4 and outer tube 1 junction, then use the outer tube 1 and observe the outer tube 1 between the outer tube 1 and seal connection boss 2, thereby the welding seam is convenient for observe between the outer tube 1 and the sealing connection joint 1 when the welding seam is convenient for observe between the outer tube 1.
Referring to fig. 4 and 5, it is shown that: the external fixing unit 5 comprises an L-shaped plate 51 arranged above the mounting table 31, the horizontal section of the L-shaped plate 51 is parallel to the surface of the mounting table 31, a height adjusting structure 52 capable of changing the distance between the L-shaped plate 51 and the mounting table 31 is arranged on the mounting table 31, the upper end of the vertical section of the L-shaped plate 51 is provided with a pressing arm 53 which is inclined towards the outer tube body 1 and can adjust the length of the outer tube body, the end part of the pressing arm 53, far away from the L-shaped plate 51, is provided with a pressing block 531, the lower end of the vertical section of the L-shaped plate 51 is provided with a passive pressing arm 54, the end part of the passive pressing arm 54, far away from the L-shaped plate 51, is provided with a clamping block 541, and the clamping block 541 is arranged below the pressing block 531.
In the initial state, the height adjusting structure 52 lifts the L-shaped plate 51 to the highest position, so that the pressing block 531 at the end part of the pressing arm 53 and the clamping block 541 at the end part of the passive pressing arm 54 are far away from the outer pipe body 1, after the first sealing connection boss 3 and the second sealing connection boss 4 are connected by using bolts, the height adjusting structure 52 works to press the clamping block 541 to the outer surface of the outer pipe body 1, then stretches the length of the pressing arm 53, so that the pressing block 531 presses the clamping block 541 downwards, applies a force perpendicular to the surface of the outer pipe body 1 to the clamping block 541, and the four clamping blocks 541 form a force towards the center of the outer pipe body 1, so that the connection of the first sealing connection boss 3 and the outer pipe body 1 with the connection of the second sealing connection boss 4 and the outer pipe body 1 is reinforced.
Referring to fig. 5 and 6, it is shown that: the height adjusting structure 52 comprises a height adjusting threaded column 521, an annular limiting plate 5211 is arranged in the middle of the height adjusting threaded column 521, one end of the height adjusting threaded column 521 penetrates through the L-shaped plate 51 to be in threaded connection with the mounting table 31, the annular limiting plate 5211 is pressed on the upper surface of the horizontal section of the L-shaped plate 51, a first spring 522 is sleeved on the height adjusting threaded column 521, one end of the first spring 522 is connected with the lower surface of the horizontal section of the L-shaped plate 51, the other end of the first spring 522 is connected with the upper surface of the mounting table 31, at least one limiting slide column 523 is vertically arranged on one side of the height adjusting threaded column 521, one end of the limiting slide column 523 is connected with the mounting table 31, the L-shaped plate 51 is in sliding connection with the limiting slide column 523, a limiting stud 524 is arranged on the height adjusting threaded column 521 along the axis direction of the height adjusting threaded column, and the lower end of the limiting stud 524 is connected with the mounting table 31.
When the height-adjusting threaded column 521 is far away from the mounting table 31, the first spring 522 rebounds, the L-shaped plate 51 moves upwards, when the height-adjusting threaded column 521 is close to the mounting table 31, the first spring 522 is compressed, the L-shaped plate 51 moves downwards under the compression of the annular limiting plate 5211, the L-shaped plate 51 can only move upwards and downwards in the vertical direction due to the cooperation between the limiting slide column 523 and the height-adjusting threaded column 521, the L-shaped plate 51 is prevented from rotating, the distance of the height-adjusting threaded column 521 away from the mounting table 31 is limited by the limiting stud 524, the height-adjusting threaded column 521 is always connected with the mounting table 31, and the external fixing unit 5 is prevented from falling from the mounting table 31, so that the external fixing unit 5 which is subject to the action of gravity and has a downward movement trend can be conveniently adjusted by workers.
Referring to fig. 5 and 7, it is shown that: the push-down arm 53 includes the first linking arm 532 that the slope set up, the higher one end of first linking arm 532 is articulated with the upper end of L template 51 vertical section, the lower one end of first linking arm 532 is provided with the second linking arm 535, the one end of first linking arm 532 towards second linking arm 535 is provided with the spacing litter 533 of a plurality of, the one end of second linking arm 535 towards first linking arm 532 is provided with the jack with first spacing litter 533 matched with, second linking arm 535 and first spacing litter 533 sliding connection, the cover is equipped with the second spring 534 on the spacing litter 533, the one end and the terminal surface of first linking arm 532 of second spring 534 are connected, the other end and the terminal surface of second linking arm 535 are connected, the middle part of first linking arm 532 sets up the length adjustment structure 536 that can adjust the distance between second linking arm 535 and the first linking arm 532, the both sides of first linking arm 532 all are provided with elastic linking arm 537, the one end and the middle part of first linking arm 533 are connected, the middle part of the other end and the elastic linking arm 537 one side is connected with the vertical one side of L template 51 of vertical section.
After the clamp splice 541 is tightly attached to the outer wall of the outer pipe body 1, the length adjusting structure 536 works to drive the second connecting arm 535 to move away from the first connecting arm 532 along the first limiting sliding rod 533, the force applied by the second connecting arm 535 is applied to the first limiting sliding rod 533 to keep the second connecting arm 535 and the first connecting arm 532 on a straight line all the time, the extrusion block 531 moves towards the direction away from the L-shaped plate 51 due to the action of the length adjusting structure 536, the two elastic connecting arms 537 apply the force towards the L-shaped plate 51 to the first connecting arm 532, the rotation angle of the first connecting arm 532 is controlled, the extrusion block 531 almost moves along the horizontal direction, the inclined surface of the extrusion block 531 and the inclined surface of the clamp splice 541 are relatively displaced, the clamp splice 541 enables the extrusion block 531 to have the upward moving trend, and the force towards the center of the outer pipe body 1 is applied to the clamp splice 541 due to the relation of acting force and reacting force.
Referring to fig. 7 and 8, it is shown that: the middle part symmetry of first linking arm 532 is provided with two first spacing spouts 5321, the middle part of the terminal surface of second linking arm 535 towards first linking arm 532 is provided with spliced pole 5351, length adjustment structure 536 is including setting up the screw thread sleeve 5361 between two first spacing spouts 5321, screw thread sleeve 5361 is provided with two spacing sliders along its diameter direction symmetry, spacing slider and first spacing spout 5321 sliding connection, screw thread sleeve 5361 is connected with spliced pole 5351 towards the one end of second linking arm 535, screw thread sleeve 5361's the other end is provided with length adjustment screw thread post 5362 along its axis direction, length adjustment screw thread post 5362's one end and screw thread sleeve 5361 threaded connection, length adjustment screw thread post 5362's the other end is connected with first linking arm 532, length adjustment screw thread post 5362's surface cover is equipped with rotation adjustment head 5363, rotation adjustment head 5363 is close to length adjustment screw thread post 5362 and first linking arm 532 one end, and rotation adjustment head 5363 and length adjustment screw thread post 5362 fixed connection.
When the length adjusting structure 536 works, a worker rotates the rotating adjusting head 5363 by using a wrench, the rotating adjusting head 5363 drives the length adjusting threaded column 5362 to rotate, one end of the length adjusting threaded column 5362 rotates on the first connecting arm 532, the other end of the length adjusting threaded column 5362 rotates in the threaded sleeve 5361, when the length adjusting threaded column 5362 rotates positively, the threaded sleeve 5361 moves towards the length adjusting threaded column 5362 along the first limiting sliding groove 5321, at the moment, the second connecting arm 535 is close to the first connecting arm 532, and when the length adjusting threaded column 5362 rotates reversely, the threaded sleeve 5361 moves towards the direction away from the length adjusting threaded column 5362 along the first limiting groove, at the moment, the second connecting arm 535 is away from the first connecting arm 532, so that the length adjusting structure 536 controls the total length of the first connecting arm 532 and the second connecting arm 535, and further controls the force applied by the extrusion block 531 to the clamping block 541.
Referring to fig. 8 and 9, it is shown that: the length-adjusting threaded column 5362 is provided with a plurality of position holes along the diameter direction thereof, the plurality of position holes are arranged in an array along the axial direction of the length-adjusting threaded column 5362, and positioning pins 5364 are arranged in the position holes.
After the length adjustment threaded column 5362 has adjusted the length between the first connection arm 532 and the second connection arm 535, insert the locating pin 5364 into the position hole that is close to the threaded sleeve 5361, the locating pin 5364 can prevent that the threaded sleeve 5361 from moving towards the length adjustment threaded column 5362 in the use, keep the force that squeezes piece 531 applied to the splint, insert the locating pin 5364 in the same position hole of four length adjustment threaded columns 5362 simultaneously for four squeezes piece 531 apply the same force to four clamp pieces 541, thereby make outer body 1 atress even.
Referring to fig. 10, it is shown that: a connecting plate 542 is arranged between the clamping block 541 and the L-shaped plate 51, one end of the connecting plate 542 is hinged with the L-shaped plate 51, the other end of the connecting plate 542 is connected with the clamping block 541, two second limiting sliding grooves 5411 which are parallel to each other are arranged on two opposite sides of the clamping block 541, a connecting sliding block 543 is vertically arranged between the clamping block 541 and the extruding block 531, one end of the connecting sliding block 543 is fixedly connected with the extruding block 531, and the other end of the connecting sliding block 543 is in sliding connection with the second limiting sliding grooves 5411.
When the extrusion block 531 applies a downward force to the clamping block 541, the connection plate 542 applies a pulling force to the clamping block 541 toward the L-shaped plate 51, so that the clamping block 541 moves relative to the extrusion block 531, and when the extrusion block 531 moves relative to the clamping block 541, the connection slider 543 slides in the second limit sliding groove 5411, and the connection slider 543 connects the extrusion block 531 and the clamping block 541, so that the relative position of the extrusion block 531 and the clamping block 541 is maintained when the extrusion block 541 is not in use.
Referring to fig. 2, 3 and 11, there is shown: the clamping and supporting mechanism 6 comprises a mounting circular ring 61 arranged in the mounting groove 32, two clamping rings 62 are symmetrically arranged at the middle part of the mounting circular ring 61 around the axis of the mounting circular ring, two elastic supporting arms 63 are arranged between each clamping ring 62 and the mounting circular ring 61, the two elastic supporting arms 63 are symmetrically arranged around the middle surface of the clamping ring 62, the connecting lines between the two elastic supporting arms 63 are orthogonal, and rubber pads 64 are arranged on the inner wall of the clamping ring 62.
The clamping ring 62 exceeds the end face of the first sealing connection boss 3, when the first sealing connection boss 3 and the second sealing connection boss 4 are close to each other, the two opposite clamping rings 62 are abutted against each other first, when the first sealing connection boss 3 and the second sealing connection boss 4 are completely attached, the two clamping rings 62 move toward the inside of the first sealing connection boss 3 and the inside of the second sealing connection boss 4, respectively, and move toward the inner pipe body 2, thereby realizing clamping of the inner pipe body 2 when the two outer pipe bodies 1 are connected.
Referring to fig. 11 and 12, it is shown that: the elastic supporting arm 63 comprises a base 631, the base 631 is arranged on the mounting circular ring 61, one end of the base 631 is provided with a main supporting arm 632 hinged with the base, one end of the main supporting arm 632 far away from the base 631 is provided with a main telescopic rod 633, the main telescopic rod 633 is in sliding connection with the main supporting arm 632, a third spring 634 is sleeved on the main telescopic rod 633, one end of the third spring 634 is connected with one end of the main supporting arm 632, the other end of the third spring 634 is connected with one end of the main telescopic rod 633 far away from the main supporting arm 632, the other end of the base 631 is provided with a diagonal supporting arm 635 hinged with the main telescopic rod, one end of the diagonal supporting arm 635 far away from the base 631 is provided with a diagonal telescopic rod 636, one end of the diagonal telescopic rod 636 far away from the diagonal supporting arm 635 is hinged with one end of the main supporting arm 632 far away from the base 631, a fourth spring 637 is sleeved on the diagonal telescopic rod 636, one end of the fourth spring 637 is connected with one end of the diagonal supporting arm 635, and the other end of the diagonal supporting arm 637 is connected with one end far away from the diagonal supporting arm 635.
The diagonal support arm 635 and the diagonal expansion link 636 provide diagonal support force to the main support arm 632 such that the clamp ring 62 protrudes outside the first sealing connection boss 3, when the two clamp rings 62 are pressed against each other, the main expansion link 633 contracts, the main support arm 632 rotates toward the inside of the first sealing connection boss 3 such that the diagonal expansion link 636 contracts, and the two clamp rings 62 symmetrical up and down outside the inner tube body 2 move toward the inner tube body 2, thereby achieving clamping of the inner tube body 2.
Referring to fig. 3 and 12, it is shown that: a second limiting slide rod 65 is arranged between the two symmetrical clamping rings 62 arranged on the first sealing connection boss 3 and the second sealing connection boss 4, two ends of the second limiting slide rod 65 are respectively connected with the two clamping rings 62 in a sliding mode, an annular stop block 651 is arranged in the middle of the second limiting slide rod 65, two ends of the annular stop block 651 are respectively sleeved with a fifth spring 66, one end of each fifth spring 66 is connected with the annular stop block 651, and the other end of each fifth spring 66 is connected with the corresponding clamping ring 62.
When the two clamping rings 62 are mutually extruded, rotation is easy to occur, so that the clamping rings 62 cannot be accurately abutted against the inner pipe body 2, and therefore, when the first sealing connection boss 3 and the second sealing connection boss 4 are mutually close to each other, the two clamping rings 62 are mutually close to each other along the second sealing connection boss 65, and therefore synchronous movement of the two clamping rings 62 is kept, and the clamping rings 62 are accurately abutted against the inner pipe body 2.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a LNG ship gas double-wall pipe connecting device, including two outer body (1) and interior body (2), a serial communication port, still include first sealed connection boss (3) and second sealed connection boss (4), the one end that bolt connection end was kept away from to first sealed connection boss (3) is connected with the end of an outer body (1), the one end that bolt connection end was kept away from to second sealed connection boss (4) is connected with the end of another outer body (1), the surface annular array of outer body (1) one end that first sealed connection boss (3) orientation was connected with it is provided with four mount tables (31), set up annular mounting groove (32) on the inner wall of first sealed connection boss (3), all be provided with external fixed unit (5) that are used for fixed connection outer body (1) and first sealed connection boss (3) on four mount tables (31), four external fixed unit (5) constitute fixed establishment, be provided with in the mounting groove (32) and be used for fixed inner body (2) the tight supporting mechanism (6), be provided with on second sealed connection boss (4) with the same structure of first sealed connection boss (3);
the external fixing unit (5) comprises an L-shaped plate (51) arranged above the mounting table (31), the horizontal section of the L-shaped plate (51) is parallel to the surface of the mounting table (31), a height adjusting structure (52) capable of changing the distance between the L-shaped plate (51) and the mounting table (31) is arranged on the mounting table (31), the upper end of the vertical section of the L-shaped plate (51) is provided with a pressing arm (53) which is obliquely oriented to the outer pipe body (1) and can adjust the length of the pressing arm, the end part of the pressing arm (53) far away from the L-shaped plate (51) is provided with a pressing block (531), the lower end of the vertical section of the L-shaped plate (51) is provided with a passive pressing arm (54), the end part of the passive pressing arm (54) far away from the L-shaped plate (51) is provided with a clamping block (541), and the clamping block (541) is arranged below the pressing block (531);
the height adjusting structure (52) comprises a height adjusting threaded column (521), an annular limiting plate (5211) is arranged in the middle of the height adjusting threaded column (521), one end of the height adjusting threaded column (521) penetrates through an L-shaped plate (51) to be in threaded connection with a mounting table (31), the annular limiting plate (5211) is pressed on the upper surface of the horizontal section of the L-shaped plate (51), a first spring (522) is sleeved on the height adjusting threaded column (521), one end of the first spring (522) is connected with the lower surface of the horizontal section of the L-shaped plate (51), the other end of the first spring (522) is connected with the upper surface of the mounting table (31), at least one limiting slide column (523) is vertically arranged on one side of the height adjusting threaded column (521), one end of the limiting slide column (523) is connected with the mounting table (31), the L-shaped plate (51) is in sliding connection with the limiting slide column (521), a limiting stud (524) is arranged along the axis direction of the height adjusting threaded column (521), and the lower end of the limiting stud (524) is connected with the mounting table (31).
2. The LNG ship gas double-wall pipe connection device according to claim 1, wherein the pressing down arm (53) includes a first connection arm (532) disposed obliquely, a higher end of the first connection arm (532) is hinged to an upper end of a vertical section of the L-shaped plate (51), a lower end of the first connection arm (532) is provided with a second connection arm (535), one end of the first connection arm (532) facing the second connection arm (535) is provided with a plurality of first limit sliding rods (533), one end of the second connection arm (535) facing the first connection arm (532) is provided with a jack matched with the first limit sliding rod (533), the second connection arm (535) is slidably connected with the first limit sliding rod (533), a second spring (534) is sleeved on the first limit sliding rod (533), one end of the second spring (534) is connected with an end face of the first connection arm (532), the other end of the second spring (534) is connected with an end face of the second connection arm (532), one side of the first connection arm (535) can be provided with a length adjusting structure 537 which is provided between the first connection arm (532) and two sides of the first connection arm (532), the other end of the elastic connecting arm (537) is connected with the middle part of one side of the vertical section of the L-shaped plate (51).
3. The LNG ship gas double-wall pipe connection device according to claim 2, wherein two first limit sliding grooves (5321) are symmetrically provided in the middle of the first connection arm (532), a connection post (5351) is provided in the middle of the end face of the second connection arm (535) facing the first connection arm (532), the length adjustment structure (536) includes a threaded sleeve (5361) provided between the two first limit sliding grooves (5321), the threaded sleeve (5361) is symmetrically provided with two limit sliding blocks along the diameter direction thereof, the limit sliding blocks are slidably connected with the first limit sliding grooves (5321), one end of the threaded sleeve (5361) facing the second connection arm (535) is connected with the connection post (5351), the other end of the threaded sleeve (5361) is provided with a length adjustment threaded post (5362) along the axis direction thereof, one end of the length adjustment threaded post (5362) is connected with the threaded sleeve (5361), the other end of the length adjustment threaded post (5362) is connected with the first connection arm (532), the surface of the length adjustment threaded post (5362) is sleeved with a rotation head (5363) of the length adjustment threaded post (5362), and the rotation head (5363) is fixed to the length adjustment post (5363) and is connected with the first connection post (5363).
4. A gas double-walled pipe connection device for LNG vessels according to claim 3, characterized in that the length adjusting screw (5362) is provided with a plurality of position holes along its diameter direction, the plurality of position holes being arranged in an array along the axial direction of the length adjusting screw (5362), and in the position holes are provided positioning pins (5364).
5. The gas double-wall pipe connecting device for the LNG ship according to claim 1, wherein a connecting plate (542) is arranged between the clamping block (541) and the L-shaped plate (51), one end of the connecting plate (542) is hinged with the L-shaped plate (51), the other end of the connecting plate (542) is connected with the clamping block (541), two second limiting sliding grooves (5411) which are parallel to each other are arranged on two opposite side surfaces of the clamping block (541), a connecting sliding block (543) is vertically arranged between the clamping block (541) and the extruding block (531), one end of the connecting sliding block (543) is fixedly connected with the extruding block (531), and the other end of the connecting sliding block (543) is in sliding connection with the second limiting sliding grooves (5411).
6. The LNG ship gas double-wall pipe connection device according to claim 1, wherein the clamping support mechanism (6) comprises a mounting ring (61) disposed in the mounting groove (32), two clamping rings (62) are symmetrically disposed at the middle of the mounting ring (61) about the axis thereof, two elastic support arms (63) are disposed between each clamping ring (62) and the mounting ring (61), the two elastic support arms (63) are symmetrically disposed about the middle surface of the clamping ring (62), the connecting lines between the two elastic support arms (63) are orthogonal, and rubber pads (64) are disposed on the inner wall of the clamping ring (62).
7. The LNG ship gas double-wall pipe connection device according to claim 6, wherein the elastic support arm (63) comprises a base (631), the base (631) is mounted on the mounting ring (61), one end of the base (631) is provided with a main support arm (632) hinged thereto, one end of the main support arm (632) far away from the base (631) is provided with a main telescopic rod (633), the main telescopic rod (633) is slidably connected with the main support arm (632), a third spring (634) is sleeved on the main telescopic rod (633), one end of the third spring (634) is connected with the end of the main support arm (632), the other end of the third spring (634) is connected with one end of the main telescopic rod (633) far away from the main support arm (632), the other end of the base (631) is provided with a diagonal support arm (635) hinged thereto, one end of the diagonal support arm (635) far away from the base (631) is provided with a diagonal telescopic rod (636), one end of the diagonal support arm (636) far away from the diagonal support arm (635) is slidably connected with the main support arm (632), one end of the diagonal support arm (635) far away from the base (635) is provided with a diagonal support arm (636), one end of the diagonal support arm (636) far from the diagonal support arm (7) is hinged with a diagonal support arm (7), the other end of the fourth spring (637) is connected with one end of the oblique telescopic rod (636) far away from the oblique supporting arm (635).
8. The gas double-wall pipe connecting device for the LNG ship according to claim 7, wherein a second limiting slide rod (65) is arranged between two symmetrical clamping rings (62) arranged on the first sealing connection boss (3) and the second sealing connection boss (4), two ends of the second limiting slide rod (65) are respectively in sliding connection with the two clamping rings (62), an annular stop block (651) is arranged in the middle of the second limiting slide rod (65), fifth springs (66) are respectively sleeved at two ends of the annular stop block (651), one end of each fifth spring (66) is connected with the annular stop block (651), and the other end of each fifth spring (66) is connected with the corresponding clamping ring (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310234682.1A CN116293147B (en) | 2023-03-13 | 2023-03-13 | LNG ship gas double-wall pipe connecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310234682.1A CN116293147B (en) | 2023-03-13 | 2023-03-13 | LNG ship gas double-wall pipe connecting device |
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| CN116293147A CN116293147A (en) | 2023-06-23 |
| CN116293147B true CN116293147B (en) | 2023-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102016004069A1 (en) * | 2016-04-08 | 2017-10-12 | Bernhard Hunklinger | Coupling device for coupling a first connection section with a complementary, second connection section, in particular a hydraulic line system |
| CN113464316A (en) * | 2020-03-30 | 2021-10-01 | 中西商事株式会社 | Double tube structure and support |
| CN113775843A (en) * | 2021-07-27 | 2021-12-10 | 上海外高桥造船海洋工程有限公司 | LNG ship gas double-wall pipe connecting device |
| CN114001210A (en) * | 2021-11-18 | 2022-02-01 | 厦门方特卫浴有限公司 | Double-flow-channel assembly and double-flow-channel hose thereof |
| CN216813254U (en) * | 2022-03-17 | 2022-06-24 | 武汉万居隆电器有限公司 | Pipeline connector |
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2023
- 2023-03-13 CN CN202310234682.1A patent/CN116293147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016004069A1 (en) * | 2016-04-08 | 2017-10-12 | Bernhard Hunklinger | Coupling device for coupling a first connection section with a complementary, second connection section, in particular a hydraulic line system |
| CN113464316A (en) * | 2020-03-30 | 2021-10-01 | 中西商事株式会社 | Double tube structure and support |
| CN113775843A (en) * | 2021-07-27 | 2021-12-10 | 上海外高桥造船海洋工程有限公司 | LNG ship gas double-wall pipe connecting device |
| CN114001210A (en) * | 2021-11-18 | 2022-02-01 | 厦门方特卫浴有限公司 | Double-flow-channel assembly and double-flow-channel hose thereof |
| CN216813254U (en) * | 2022-03-17 | 2022-06-24 | 武汉万居隆电器有限公司 | Pipeline connector |
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