CN111561659B - Ultralow temperature liquefaction wharf loading and unloading arm - Google Patents
Ultralow temperature liquefaction wharf loading and unloading arm Download PDFInfo
- Publication number
- CN111561659B CN111561659B CN202010506368.0A CN202010506368A CN111561659B CN 111561659 B CN111561659 B CN 111561659B CN 202010506368 A CN202010506368 A CN 202010506368A CN 111561659 B CN111561659 B CN 111561659B
- Authority
- CN
- China
- Prior art keywords
- arm
- outer arm
- driving mechanism
- rope pulley
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 10
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 239000003949 liquefied natural gas Substances 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
An ultralow-temperature liquefied dock loading arm relates to the technical field of fluid loading and unloading equipment for a dock, in particular to an ultralow-temperature fluid loading and unloading arm special for a liquid chemical dock. The upright post is connected with the rotating shaft box through a rotating joint, the rotating shaft box is rotationally connected with the supporting box, and the upper end of the supporting box is rotationally connected with the upper end of the outer arm supporting piece; the process pipeline comprises a main pipeline, an outer arm pipe and an inner arm pipe; the rope pulley system comprises an upper rope pulley, a lower rope pulley and a steel wire rope, the upper end of the supporting box is rotationally connected with the upper rope pulley, the lower end of the supporting box is rotationally connected with the lower rope pulley, the upper rope pulley is connected with the lower rope pulley through the steel wire rope, and the lower rope pulley is connected with the counterweight mechanism; the hydraulic driving mechanism comprises an inner arm driving mechanism, an outer arm driving mechanism and a horizontal rotation driving mechanism, wherein the inner arm driving mechanism and the horizontal rotation driving mechanism are installed at the upper end of the upright post, the outer clamping jaw is connected with the inner clamping jaw through a compression spring, and the force generated by the compression spring is always vertically acted on the outer arm of the inner clamping jaw, so that the inner clamping jaw can generate enough compression force.
Description
Technical Field
The invention relates to the technical field of fluid loading and unloading equipment for ports and terminals, in particular to an ultralow-temperature fluid loading and unloading arm special for a liquid chemical engineering port.
Background
With the rapid development of the domestic liquefied natural gas market, the application of LNG receiving stations of various large ports is more and more extensive, the transportation volume of the liquefied natural gas ships is also rapidly enlarged, and after the liquefied natural gas ships are berthed to the wharf, the pipelines of the ships and the wharf are connected by the loading and unloading arm, so that the LNG is transported from the ship to the wharf.
The conventional normal-temperature loading and unloading arm can only transport normal-temperature media, and can cause low-temperature shrinkage and material deformation when transporting low-temperature media, so that the supporting box and the outer arm supporting piece can be clamped due to shrinkage of the inner arm pipe and the outer arm pipe in the rotating process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the ultralow temperature liquefying wharf loading and unloading arm which can be used for conveying low-temperature and ultralow-temperature liquid chemical products.
The invention provides an ultralow temperature liquefaction wharf loading and unloading arm which comprises an upright post, a rotating shaft box, a supporting box, a process pipeline, a three-dimensional joint, a rope wheel system and a hydraulic driving mechanism, wherein the upright post is arranged on the upright post; the upright post is connected with the rotating shaft box through a rotating joint, the rotating shaft box is rotationally connected with the supporting box, and the upper end of the supporting box is rotationally connected with the upper end of the outer arm supporting piece; the process pipeline comprises a main pipeline, an outer arm pipe and an inner arm pipe; the rope pulley system comprises an upper rope pulley, a lower rope pulley and a steel wire rope, the upper end of the supporting box is rotationally connected with the upper rope pulley, the lower end of the supporting box is rotationally connected with the lower rope pulley, the upper rope pulley is connected with the lower rope pulley through the steel wire rope, and the lower rope pulley is connected with the counterweight mechanism; the hydraulic driving mechanism comprises an inner arm driving mechanism, an outer arm driving mechanism and a horizontal rotation driving mechanism, the inner arm driving mechanism and the horizontal rotation driving mechanism are arranged at the upper end of the upright post, and the outer arm driving mechanism is arranged at the lower part of the supporting box;
The method is characterized in that: a main pipeline is arranged in the cavity of the upright post and is connected with the inner wall of the cavity of the upright post, the upper end of the main pipeline is rotationally connected with the inner arm pipe through a low-temperature rotary joint, the upper end of the outer arm pipe is rotationally connected with the upper end of the inner arm pipe through a low-temperature rotary joint, the lower end of the outer arm pipe is connected with a three-dimensional joint, and the outer end of the three-dimensional joint is connected with a quick joint through an emergency disengaging device; the outer arm of the lower half part of the outer arm pipe is rotationally connected with the lower end of the outer arm support piece; the quick connector comprises a main body pipeline, a rotation mechanism and a clamping mechanism, wherein two ends of the main body pipeline are respectively connected with a flange, and the main body pipeline is respectively provided with the rotation mechanism and the clamping mechanism; the rotary mechanism comprises a fixed ring, a rotary ring and a hydraulic cylinder; one end of a piston rod of the hydraulic cylinder is hinged with the fixed ring, and one end of a cylinder body of the hydraulic cylinder is hinged with the rotary ring; the clamping mechanism comprises an inner claw and an outer claw, the lower ends of the inner claw and the outer claw are coaxially hinged with an outer arm of the main pipeline, the inner claw is positioned at the inner end of the outer claw, the inner end of the outer claw is fixedly connected with the outer end of a mandrel, the inner end of the mandrel is hinged with the outer end of the inner claw, the mandrel is sleeved with a spring seat, the outer side of the mandrel is sleeved with a compression spring, one end of the compression spring is connected with the inner claw, and the other end of the compression spring is connected with the spring seat; the rotary ring is provided with a plurality of fork-shaped joints, the fork-shaped joints and the outer clamping claws are arranged in a staggered mode, the lower end of the connecting rod is connected with the fork-shaped joints through a joint bearing, and the upper end of the connecting rod is connected with the outer clamping claws through the joint bearing.
The upper end and the lower end of the outer arm pipe and the inner arm pipe are respectively provided with a connecting pipe which is vertically distributed, the upper end of the main pipeline is rotationally connected with the lower end of the 90-degree bent joint through a low-temperature rotary joint, the upper end of the 90-degree bent joint is rotationally connected with the connecting pipe at the lower end of the inner arm pipe through a low-temperature rotary joint, the lower end of the 90-degree bent joint is connected with the other bent joint, one end of the bent joint is positioned at the opening position of the upright post, and the connecting pipe at the upper end of the outer arm pipe penetrates through the rotary sleeve and is rotationally connected with the connecting pipe at the upper end of the inner arm pipe through the low-temperature rotary joint.
The main pipeline is connected with the inner wall of the upright post cavity through a pipeline fixing device.
The pipeline fixing device comprises a fixing ring and a connecting plate, a plurality of lug plates which are uniformly distributed in a circumferential shape are arranged on the inner wall of the cavity of the upright post, an outer arm pipe of the fixing ring is fixedly connected with the lug plates through the connecting plate, and the fixing ring is sleeved on the outer side of the main pipeline.
And a methane gas concentration monitoring sensor and an ethane gas concentration monitoring sensor are arranged at the position of the gas outlet of the low-temperature rotary joint, and are connected with an alarm through a circuit.
The outer arm pipe and the outer arm supporting piece are connected through the connecting frame, the connecting frame comprises an upper base and a lower base, a plurality of through holes are respectively formed in the upper base and the lower base, the upper base is fixedly connected with the outer arm pipe, the lower base is fixedly connected with the outer arm supporting piece, a bolt penetrates through the through holes of the upper base and the lower base to be matched with a nut in a threaded manner, the upper base and the lower base are fixed, and the diameter of the through holes of the upper base and the lower base is larger than that of the bolt.
Compared with the prior art, the invention has the following outstanding beneficial effects:
The upper end of the outer arm of the device is rotationally connected with the upper end of the inner arm, the lower end of the device is rotationally connected with the outer arm support, and the lower end of the inner arm penetrates through a through hole at the rotational connection position of the supporting box and the upright post and is rotationally connected with the supporting box, so that the outer arm, the inner arm, the outer arm support and the supporting box form a quadrangle.
The quick connector of the device comprises an inner claw and an outer claw, the outer claw is connected with the inner claw through a compression spring, and the force generated by the compression spring is always acted on an outer arm of the inner claw vertically, so that the inner claw can generate enough compression force.
Drawings
Fig. 1 is a structural view of the unfolded state of the present invention.
Fig. 2 is a front view of the contracted state of the present invention.
Fig. 3 is a side view of the present invention in a contracted state.
Fig. 4 is a partial enlarged view of a portion a in fig. 3.
Fig. 5 is a partial enlarged view of a portion B in fig. 3.
Fig. 6 is a schematic structural view of a quick connector portion of the present invention.
Fig. 7 is a top view of a quick connector portion of the present invention.
Fig. 8 is a partial enlarged view of a portion C in fig. 6.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1-3, the present invention includes a column 14, a swivel box 8, a support box 3, process lines, a three-dimensional joint 9, a sheave system, and a hydraulic drive mechanism.
The upright post 14 and the supporting box 3 are respectively provided with a cavity which is penetrated up and down, the upright post 14 is connected with the rotating shaft box 8 through a rotating joint, the rotating shaft box 8 is rotationally connected with the supporting box 3, the lower half part of the upright post 14 is provided with an opening which is communicated with the cavity, the upper end of the supporting box 3 is rotationally connected with the upper end of the outer arm supporting piece 21, and the rotating connection mode is as follows: the upper end of the supporting box 3 is provided with a rotating sleeve, the upper end of the outer arm supporting piece 21 is provided with a through hole, and the rotating sleeve is matched with the through hole of the outer arm supporting piece 21 through a bearing.
The process pipeline comprises a main pipeline 23, an outer arm pipe 22 and an inner arm pipe 4, wherein connecting pipes which are vertically distributed are respectively arranged at the upper end and the lower end of the outer arm pipe 22 and the inner arm pipe 4, the main pipeline 23 is arranged in a cavity of the upright post 14, the main pipeline 23 is connected with the inner wall of the cavity of the upright post 23 through a pipeline fixing device 19, the upper end of the main pipeline 23 is rotationally connected with the lower end of a 90-degree bent joint through a low-temperature rotary joint, the upper end of the 90-degree bent joint is rotationally connected with the connecting pipe at the lower end of the inner arm pipe 4 through a low-temperature rotary joint, the lower end of the bent joint is connected with another bent joint, one end of the bent joint is positioned at the opening position of the upright post 23, the lower end of the inner arm pipe 4 is connected with the box wall of the rotating shaft box 8 through a pipeline fixing device 19, the connecting pipe at the upper end of the outer arm pipe 22 penetrates through a rotary sleeve and is rotationally connected with the connecting pipe at the upper end of the inner arm pipe 4 through a low-temperature rotary joint, the lower end of the outer arm pipe 22 is connected with the three-dimensional joint 9, and the outer end of the three-dimensional joint 9 is connected with the quick joint 20 through an emergency release device. The outer arm of the lower half of the outer arm pipe 22 is rotatably coupled to the lower end of the outer arm support 21 in such a manner that: the lower end of the outer arm support 21 is provided with a through hole, the rotating seat is provided with a rotating shaft, the rotating shaft is matched with the through hole on the outer arm support through a bearing, the rotating seat is provided with a through hole, and the rotating seat is sleeved on the outer side of the outer arm pipe 22.
As shown in fig. 6 to 8, the quick connector 20 includes a main pipe, a swivel mechanism, and a clip mechanism.
The two ends of the main body pipeline are fixedly connected with the flange plates respectively, annular grooves are formed in the end faces of the two flange plates respectively, annular sealing rings are installed in the annular sliding grooves, and the main body pipeline is provided with a rotation mechanism and a clamping mechanism respectively.
The outside that is located the ring flange of joint mechanism one end of main part pipeline is equipped with a plurality of deflector that are circumference evenly distributed, and the inner of deflector is equipped with the inclined plane, and the deflector can carry out centering location to the manifold flange of transport ship.
The slewing mechanism comprises a fixed ring 205, a slewing ring 206 and a hydraulic cylinder 211, wherein the fixed ring 205 is rotationally connected with the slewing ring 206 in the following way: the lower end of the fixed ring 205 is fixedly connected with the sliding ring 207 through a bolt, a ring-shaped groove is arranged on the outer ring wall of the sliding ring 207, a ring-shaped groove is also arranged on the inner ring wall of the rotary ring 206, the cross sections of the ring-shaped grooves of the sliding ring 207 and the rotary ring 206 are semicircular, the ring-shaped groove of the sliding ring 207 is correspondingly arranged with the ring-shaped groove of the rotary ring 206, the rotary ring 206 is sleeved on the outer side of the sliding ring 207, the two ring-shaped grooves form a ring-shaped cavity, a plurality of balls 208 are arranged in the ring-shaped cavity, and when the rotary ring 206 rotates around the sliding ring 207, the balls 208 can reduce friction force between the rotary ring 206 and the sliding ring 207, so that the rotary ring 206 can rotate around the sliding ring 207 more easily.
The fixing ring 205 and the rotating ring 206 can be coupled by a bearing fit.
The lower end of the outer wall of the sliding ring 207 is provided with a lower limiting ring 210, the upper end of the inner ring of the rotary ring 206 is provided with an upper limiting ring 209, the lower limiting ring 210 is positioned at the lower end of the rotary ring 206, and the upper limiting ring 209 is positioned at the upper end of the sliding ring 207, so that the rotary ring 206 is positioned in the axial direction.
The fixed ring 205 and the rotary ring 206 are respectively provided with lugs, one end of a piston rod of the hydraulic cylinder 211 is hinged with the lugs on the fixed ring 205, and one end of a cylinder body of the hydraulic cylinder 211 is hinged with the lugs on the rotary ring 206.
The clamping mechanism comprises an inner clamping jaw 214 and an outer clamping jaw 213, a plurality of lugs 204 which are uniformly arranged in a circumferential shape are arranged on the main pipeline, the lower ends of the inner clamping jaw 214 and the outer clamping jaw 213 are coaxially hinged with the lugs 204, the inner clamping jaw 214 is positioned at the inner end of the outer clamping jaw 213, the inner end of the outer clamping jaw 213 is fixedly connected with the outer end of a mandrel 215, the inner end of the mandrel 215 is hinged with the outer end of the inner clamping jaw 214, a spring seat 216 is sleeved on the mandrel 215, a compression spring 217 is sleeved on the outer side of the mandrel 215, one end of the compression spring 217 is connected with the inner clamping jaw 214, and the other end of the compression spring 217 is connected with the spring seat 216. The rotary ring 206 is provided with a plurality of fork-shaped joints 212 uniformly distributed in a circumferential shape, the number of the fork-shaped joints 212 is the same as that of the outer clamping claws 213, the fork-shaped joints 212 and the outer clamping claws 213 are arranged in a staggered manner, the lower end of the connecting rod 219 is connected with the fork-shaped joints 212 through a joint bearing 218, and the upper end is connected with the outer clamping claws 213 through the joint bearing 218.
The lower end of the upright post 14 is provided with a nitrogen purging device 16, a rotary joint purging device 17 and an electrohydraulic system 15. The nitrogen purging device 16, the rotary joint purging device 17 and the electrohydraulic system 15 are in the prior art, and the specific structure thereof is not described again.
The rotary joint purging device 17 is respectively connected with an air inlet and an air outlet of the low-temperature rotary joint through pipelines. The gas outlet position of the low-temperature rotary joint is provided with a methane gas concentration monitoring sensor and an ethane gas concentration monitoring sensor, the methane gas concentration monitoring sensor and the ethane gas concentration monitoring sensor are connected with an alarm through a circuit, the circuit is of the prior art, and the specific structure of the circuit is not repeated. The methane gas or ethane gas can be detected whether or not leaking into the cavity of the cryogenic rotary joint by the methane gas concentration monitoring sensor and the ethane gas concentration monitoring sensor.
The rope pulley system comprises an upper rope pulley 1, a lower rope pulley 24 and a steel wire rope 6, wherein the upper end of a supporting box 3 is rotationally connected with the upper rope pulley 1, the lower end of the supporting box is rotationally connected with the lower rope pulley 24, the upper rope pulley 1 is connected with the lower rope pulley 24 through the steel wire rope 6, and the lower rope pulley is connected with a counterweight mechanism 25.
The hydraulic driving mechanism comprises an inner arm driving mechanism 7, an outer arm driving mechanism 12 and a horizontal rotation mechanism 10, wherein the inner arm driving mechanism 7 and the horizontal rotation driving mechanism 10 are installed at the upper end of the upright post 14, the inner arm driving mechanism 7 drives the supporting box 3 to rotate around the rotating joint of the supporting box 3 and the rotating box 8, the horizontal rotation mechanism 10 drives the rotating box 8 to rotate around the upright post 14, the outer arm driving mechanism 12 is installed at the lower part of the supporting box 3, and the outer arm driving mechanism 12 drives the outer arm supporting piece 21 to rotate around the rotating joint of the supporting box and the supporting box 3.
As shown in fig. 4, the pipeline fixing device 19 includes a fixing ring 19-3 and a connecting plate 19-2, the inner wall of the cavity of the upright 14 is provided with a plurality of circumferentially and uniformly distributed lugs 19-1, the outer arm tube 22 of the fixing ring 19-3 is fixedly connected with the lugs 19-1 through the connecting plate 19-2, and the fixing ring 19-3 is sleeved outside the main pipeline 23.
The rotation axis of the rotation connection part of the support box 3 and the outer arm support piece 21 and the rotation axis of the rotation connection part of the upper end of the outer arm pipe 22 and the upper end of the inner arm pipe 4 belong to the same axis, the rotation axis of the rotation connection part of the inner arm pipe 4 and the main pipeline 23 and the rotation axis of the rotation connection part of the support box 3 and the rotation box 8 belong to the same axis, when the outer arm pipe 22 and the inner arm pipe 4 shrink when encountering cold, the outer arm pipe 22 can rotate around the rotation connection part with the outer arm support piece 21, and the inner arm pipe 4 can rotate around the rotation connection part with the main pipeline 23, so that the rotation connection part of the outer arm pipe 22 and the inner arm pipe 4 moves downwards, the outer arm pipe 22, the inner arm pipe 4, the outer arm support piece 21 and the support box 3 form a quadrangle, and the phenomenon that the outer arm support piece 21 and the support box 3 are blocked and cannot rotate mutually due to the cold shrinkage of the outer arm pipe 22 and the inner arm pipe 4 can be avoided.
As shown in FIG. 5, the outer arm tube 22 and the outer arm support 21 are connected by a connecting frame 18, the connecting frame 18 comprises an upper base 18-1 and a lower base 18-2, a plurality of through holes which are uniformly distributed in a circumferential shape are respectively arranged on the upper base 18-1 and the lower base 18-2, the upper base 18-1 is fixedly connected with the outer arm tube 22, the lower base 18-2 is fixedly connected with the outer arm support 21, a bolt passes through the through holes of the upper base 18-1 and the lower base 18-2 to be matched with a nut in a threaded manner, the upper base 18-1 and the lower base 18-2 are fixed, the diameter of the through holes of the upper base 18-1 and the lower base 18-2 is larger than that of the bolt, and when the outer arm tube 22 is contracted when in a cold condition, the upper base 18-1 and the lower base 18-2 can be slightly dislocated.
It is noted that while the present invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications can be made therein without departing from the spirit and scope thereof.
Claims (6)
1. An ultra-low temperature liquefaction wharf loading and unloading arm comprises a stand column (14), a rotating shaft box (8), a supporting box (3), a process pipeline, a three-dimensional joint (9), a rope wheel system and a hydraulic driving mechanism; the upright post (14) is connected with the rotating shaft box (8) through a rotating joint, the rotating shaft box (8) is rotationally connected with the supporting box (3), and the upper end of the supporting box (3) is rotationally connected with the upper end of the outer arm supporting piece (21); the process line comprises a main line (23), an outer arm pipe (22) and an inner arm pipe (4); the rope pulley system comprises an upper rope pulley (1), a lower rope pulley (24) and a steel wire rope (6), wherein the upper end of the supporting box (3) is rotationally connected with the upper rope pulley (1), the lower end of the supporting box is rotationally connected with the lower rope pulley (24), the upper rope pulley (1) is connected with the lower rope pulley (24) through the steel wire rope (6), and the lower rope pulley is connected with the counterweight mechanism (25); the hydraulic driving mechanism comprises an inner arm driving mechanism (7), an outer arm driving mechanism (12) and a horizontal rotation driving mechanism (10), the inner arm driving mechanism (7) and the horizontal rotation driving mechanism (10) are arranged at the upper end of the upright post (14), and the outer arm driving mechanism (12) is arranged at the lower part of the supporting box (3);
The method is characterized in that: a main pipeline (23) is arranged in the cavity of the upright post (14), the main pipeline (23) is connected with the inner wall of the cavity of the upright post (14), the upper end of the main pipeline (23) is rotationally connected with the inner arm pipe (4) through a low-temperature rotary joint, the upper end of the outer arm pipe (22) is rotationally connected with the upper end of the inner arm pipe (4) through a low-temperature rotary joint, the lower end of the outer arm pipe (22) is connected with a three-dimensional joint (9), and the outer end of the three-dimensional joint (9) is connected with a quick connector (20) through an emergency disengaging device; an outer arm of the lower half part of the outer arm pipe (22) is rotationally connected with the lower end of the outer arm support piece (21); the quick connector (20) comprises a main pipeline, a rotation mechanism and a clamping mechanism, wherein two ends of the main pipeline are respectively connected with the flange plate, and the rotation mechanism and the clamping mechanism are respectively arranged on the main pipeline; the slewing mechanism comprises a first fixed ring (205), a slewing ring (206) and a hydraulic cylinder (211); one end of a piston rod of the hydraulic cylinder (211) is hinged with the first fixed ring (205), and one end of a cylinder body of the hydraulic cylinder (211) is hinged with the rotary ring (206); the clamping mechanism comprises an inner clamping jaw (214) and an outer clamping jaw (213), the lower ends of the inner clamping jaw (214) and the outer clamping jaw (213) are coaxially hinged with an outer arm of a main pipeline, the inner clamping jaw (214) is positioned at the inner end of the outer clamping jaw (213), the inner end of the outer clamping jaw (213) is fixedly connected with the outer end of a mandrel (215), the inner end of the mandrel (215) is hinged with the outer end of the inner clamping jaw (214), the mandrel (215) is sleeved with a spring seat (216), the outer side of the mandrel (215) is sleeved with a compression spring (217), one end of the compression spring (217) is connected with the inner clamping jaw (214), and the other end of the compression spring (217) is connected with the spring seat (216); the rotary ring (206) is provided with a plurality of fork-shaped joints (212), the fork-shaped joints (212) and the outer clamping claws (213) are arranged in a staggered mode, the lower end of the connecting rod (219) is connected with the fork-shaped joints (212) through a joint bearing (218), and the upper end of the connecting rod is connected with the outer clamping claws (213) through the joint bearing (218).
2. The ultra-low temperature liquefaction dock handling arm of claim 1, wherein: the upper end and the lower end of the outer arm pipe (22) and the inner arm pipe (4) are respectively provided with connecting pipes which are vertically distributed, the upper end of the main pipeline (23) is rotationally connected with the lower end of the 90-degree bent joint through a low-temperature rotary joint, the upper end of the 90-degree bent joint is rotationally connected with the connecting pipe at the lower end of the inner arm pipe (4) through a low-temperature rotary joint, the lower end of the 90-degree bent joint is connected with another bent joint, one end of the bent joint is positioned at the opening position of the upright post (14), and the connecting pipe at the upper end of the outer arm pipe (22) penetrates through the rotating sleeve and is rotationally connected with the connecting pipe at the upper end of the inner arm pipe (4) through a low-temperature rotary joint.
3. The ultra-low temperature liquefaction dock handling arm of claim 1, wherein: the main pipeline (23) is connected with the inner wall of the cavity of the upright post (14) through a pipeline fixing device (19).
4. The ultra-low temperature liquefaction dock handling arm of claim 3, wherein: the pipeline fixing device (19) comprises a second fixing ring (19-3) and a connecting plate (19-2), a plurality of lug plates (19-1) which are uniformly distributed in a circumferential shape are arranged on the inner wall of the cavity of the upright post (14), an outer arm pipe (22) of the second fixing ring (19-3) is fixedly connected with the lug plates (19-1) through the connecting plate (19-2), and the second fixing ring (19-3) is sleeved on the outer side of the main pipeline (23).
5. The ultra-low temperature liquefaction dock handling arm of claim 1, wherein: and a methane gas concentration monitoring sensor and an ethane gas concentration monitoring sensor are arranged at the position of the gas outlet of the low-temperature rotary joint, and are connected with an alarm through a circuit.
6. The ultra-low temperature liquefaction dock handling arm of claim 1, wherein: the outer arm pipe (22) is connected with the outer arm supporting piece (21) through the connecting frame (18), the connecting frame (18) comprises an upper base (18-1) and a lower base (18-2), a plurality of through holes are respectively formed in the upper base (18-1) and the lower base (18-2), the upper base (18-1) is fixedly connected with the outer arm pipe (22), the lower base (18-2) is fixedly connected with the outer arm supporting piece (21), a bolt penetrates through the through holes of the upper base (18-1) and the lower base (18-2) to be matched with a nut in a threaded mode, and the diameters of the through holes of the upper base (18-1) and the lower base (18-2) are larger than those of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506368.0A CN111561659B (en) | 2020-06-05 | 2020-06-05 | Ultralow temperature liquefaction wharf loading and unloading arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506368.0A CN111561659B (en) | 2020-06-05 | 2020-06-05 | Ultralow temperature liquefaction wharf loading and unloading arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111561659A CN111561659A (en) | 2020-08-21 |
| CN111561659B true CN111561659B (en) | 2024-05-17 |
Family
ID=72068625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010506368.0A Active CN111561659B (en) | 2020-06-05 | 2020-06-05 | Ultralow temperature liquefaction wharf loading and unloading arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111561659B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958876B (en) * | 2021-10-25 | 2022-08-02 | 连云港远大机械有限公司 | Anti-freezing low-temperature fluid loading and unloading arm with arm pipe purging function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050585A (en) * | 1975-11-07 | 1977-09-27 | Ameron, Inc. | Hydraulically balanced marine loading arm |
| CN103738905A (en) * | 2013-12-31 | 2014-04-23 | 上海冠卓企业发展有限公司 | Ultralow temperature loading arm structure with anti-overflowing pipeline |
| CN203615068U (en) * | 2013-11-13 | 2014-05-28 | 上海冠卓企业发展有限公司 | Special ultra-low temperature fluid loading arm for LNG (Liquefied Natural Gas) wharf |
| CN103899915A (en) * | 2014-03-13 | 2014-07-02 | 江苏长隆石化装备有限公司 | Loading and unloading arm for LNG (Liquefied Natural Gas) ship |
| CN203754407U (en) * | 2013-12-30 | 2014-08-06 | 上海冠卓企业发展有限公司 | Low temperature loading and unloading arm for ship |
| CN106439484A (en) * | 2016-07-01 | 2017-02-22 | 韩培 | Double-pipeline loading and unloading arm for low-temperature ship |
| CN110005942A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Anti-freezing low temperature fluid handling arm |
| CN111059379A (en) * | 2019-12-26 | 2020-04-24 | 大连华锐重工集团股份有限公司 | Hydraulic synchronous quick connector |
| CN212644231U (en) * | 2020-06-05 | 2021-03-02 | 山东冠卓重工科技有限公司 | Ultra-low temperature liquefaction wharf loading and unloading arm |
-
2020
- 2020-06-05 CN CN202010506368.0A patent/CN111561659B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050585A (en) * | 1975-11-07 | 1977-09-27 | Ameron, Inc. | Hydraulically balanced marine loading arm |
| CN203615068U (en) * | 2013-11-13 | 2014-05-28 | 上海冠卓企业发展有限公司 | Special ultra-low temperature fluid loading arm for LNG (Liquefied Natural Gas) wharf |
| CN203754407U (en) * | 2013-12-30 | 2014-08-06 | 上海冠卓企业发展有限公司 | Low temperature loading and unloading arm for ship |
| CN103738905A (en) * | 2013-12-31 | 2014-04-23 | 上海冠卓企业发展有限公司 | Ultralow temperature loading arm structure with anti-overflowing pipeline |
| CN103899915A (en) * | 2014-03-13 | 2014-07-02 | 江苏长隆石化装备有限公司 | Loading and unloading arm for LNG (Liquefied Natural Gas) ship |
| CN106439484A (en) * | 2016-07-01 | 2017-02-22 | 韩培 | Double-pipeline loading and unloading arm for low-temperature ship |
| CN110005942A (en) * | 2019-04-30 | 2019-07-12 | 鞍山市昱虎流体设备有限公司 | Anti-freezing low temperature fluid handling arm |
| CN111059379A (en) * | 2019-12-26 | 2020-04-24 | 大连华锐重工集团股份有限公司 | Hydraulic synchronous quick connector |
| CN212644231U (en) * | 2020-06-05 | 2021-03-02 | 山东冠卓重工科技有限公司 | Ultra-low temperature liquefaction wharf loading and unloading arm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111561659A (en) | 2020-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4405162A (en) | Large-diameter multi-passage swivel joint for high pressure service | |
| CN111561659B (en) | Ultralow temperature liquefaction wharf loading and unloading arm | |
| EP1391418A2 (en) | Fluid transfer boom with coaxial fluid ducts | |
| US7845211B2 (en) | Apparatus and method for forming and testing lengths of pipe | |
| CN212644231U (en) | Ultra-low temperature liquefaction wharf loading and unloading arm | |
| CN213764731U (en) | Auxiliary clamping device for welding steel pipes | |
| CN103899915B (en) | LNG ship loading arm | |
| CN105806935A (en) | Device for quickly detecting welding seam defects of large metal circular pipelines | |
| CN113389957A (en) | Small-size quick connecting device suitable for LNG tank wagon | |
| CN111609304A (en) | Emergency rescue device for dangerous gas cylinder | |
| CN204269481U (en) | Gas cylinder by hydrostatic pressure test automatic test machine | |
| CN210424088U (en) | Pressure fluid driven gyrator and automatic oil filling riser | |
| CN111550623A (en) | Quick joint for loading and unloading arm | |
| US5181798A (en) | Double pipe turntable and stinger | |
| CN212455861U (en) | Quick joint for loading and unloading arm | |
| CN216769089U (en) | Gas leakage detection device for natural gas pipeline conveying detection | |
| US6672222B2 (en) | Robotic internal gauge with contact at right angles to the oil pipeline | |
| CN116358792A (en) | Device and method for detecting air tightness of oil way hydraulic element | |
| CN209876494U (en) | Anti-freezing low-temperature fluid loading and unloading arm | |
| CN214558516U (en) | Butt joint device for welding large-diameter pipelines | |
| CN110005941B (en) | Arm pipe purging anti-freezing low-temperature fluid loading and unloading arm | |
| CN214108182U (en) | Sending device of pipeline cleaner and construction system | |
| CN2341141Y (en) | Sealed sampler | |
| CN214119286U (en) | Pipeline connecting structure | |
| CN219453180U (en) | Pipeline sealing device of oiling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |