CN206051538U - Low temperature single tube loading arm peculiar to vessel - Google Patents
Low temperature single tube loading arm peculiar to vessel Download PDFInfo
- Publication number
- CN206051538U CN206051538U CN201620550761.9U CN201620550761U CN206051538U CN 206051538 U CN206051538 U CN 206051538U CN 201620550761 U CN201620550761 U CN 201620550761U CN 206051538 U CN206051538 U CN 206051538U
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- tube
- arm
- loading arm
- freedom
- column
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Abstract
This utility model is related to a kind of low temperature single tube loading arm peculiar to vessel, the single tube loading arm includes supporting construction, tubing, fluid power system, maintenance platform, nitrogen purge system, ejection escape system, hydraulic pressure substation, upper rope sheave, steel wire rope and lower rope sheave, the steel wire rope is arranged between rope sheave and lower rope sheave, the maintenance platform is arranged on the top of loading arm, nitrogen purging distribution system is arranged near loading arm inlet flange, and the hydraulic pressure substation is arranged on column side.The tubing includes column tube, inner arm pipe and external arm tube, the upper and lower ends of column tube using axle constraint ensure pillar duct it is axially retractable it is free, axially rotate freedom；Inner arm pipe one end adopts plane restriction using hinge constraint, the other end；External arm tube one end adopts plane restriction using hinge constraint, the other end.The program makes tubing either still can keep freely stretching under ultralow-temperature operation conditions at ambient temperature, and then eliminates the internal stress that temperature deformation is produced.
Description
Technical field
This utility model is related to a kind of loading arm, and in particular to a kind of low temperature single tube loading arm peculiar to vessel, belongs to LNG ship dress
Unload equipment technical field.
Background technology
LNG ship loading arm is used for conveying the super-low liquid in LNG groove ships, the temperature of liquid pole for being conveyed on harbour
It is low, cause the pipeline amount of contraction that liquid is conveyed in LNG ship loading arm very big, and support the structure institute of transporting low temperature fluid pipeline
The temperature at place is ambient temperature, causes supporting construction with tubing because the larger temperature deformation of the larger generation of temperature difference is poor,
Supporting construction exists much smaller than the deformation that tubing is produced because of temperature, i.e. supporting construction and tubing because of the deformation that temperature is produced
When LNG ship is worked with loading arm（During handling cryogenic liquid）Deflection is inconsistent, and this will cause in supporting construction and tubing
Portion produces huge internal stress, it is contemplated that the particularity of pumped (conveying) medium, huge internal stress to the security performance of complete equipment and
Unfailing performance affects very big, especially the tubing of pumped (conveying) medium, and residing temperature is extremely low huge planted agent's hydraulic piping in addition
Safety be difficult to ensure.Analyzing its reason is：Generally LNG ship is connected by bolt with supporting construction with loading arm tubing
Connect or using outer arm end axis constrain, Planar Mechanisms will result in tubing so, under ultralow-temperature operation conditions tubing because
Planar Mechanisms cannot discharge excessive temperature deformation and then cause internal stress excessive（As shown in Fig. 2-1, Fig. 2-2, Fig. 2-3）.Cause
This, a kind of new technical scheme of exigence solves above-mentioned technical problem.
Utility model content
In order to solve above-mentioned problem, the utility model discloses a kind of low temperature single tube loading arm peculiar to vessel, the technology
Scenario-frame is simple, compact, and when LNG ship loading arm does not connect ship time, complete equipment is under ambient temperature（Original state）,
The stress that now negligible complete equipment is produced because of temperature deformation；When LNG ship loading arm meets ship time, supporting construction and pipeline system
The temperature difference of system is especially big, because the deflection difference of temperature generation is also than larger, now, can make support system and tubing respectively
State in freely stretching, will so solve because of internal stress problems of too caused by temperature deformation；When LNG ship loading arm work
When making to terminate to recover ambient temperature, tubing can be recovered to original state because of the rising of temperature again.
To achieve these goals, the technical solution of the utility model is as follows, a kind of low temperature single tube loading arm peculiar to vessel, and which is special
Levy and be, the single tube loading arm includes supporting construction, tubing, fluid power system, maintenance platform, nitrogen purging system
System, ejection escape system, hydraulic pressure substation, upper rope sheave, steel wire rope and lower rope sheave, the steel wire rope are arranged on rope sheave and lower rope
Between wheel, the supporting construction is used to support whole single tube loading arm, the maintenance platform to be arranged on the top of loading arm, nitrogen
Purging system is arranged near loading arm inlet flange, and the hydraulic pressure substation is arranged on column side.
Used as a kind of improvement of the present utility model, the supporting construction includes column, rotating shaft case from the bottom up successively, supports
Case and outer arm are supported, and column is arranged on the bottom of rotating shaft case.
Used as a kind of improvement of the present utility model, the tubing includes column tube, inner arm pipe and external arm tube, wherein
Column tube is arranged in column, and the upper and lower ends of column tube are constrained using axle, i.e., with a rotational freedom and a translation
Degree of freedom, total degree of freedom are 2, it is ensured that pillar duct it is axially retractable it is free, axially rotate freedom；Inner arm pipe one end is using hinge
Constraint, i.e. only one of which rotational freedom, total degree of freedom is 1, the other end using plane restriction have a rotational freedom and
Two translation freedoms, total degree of freedom is 3；External arm tube one end is only one of which rotational freedom using hinge constraint, total degree of freedom
It is 1, the other end contains a rotational freedom and two translation freedoms using plane restriction, and total degree of freedom is 3.
As it is of the present utility model it is a kind of improve, the hinge constraint include gusset, floor, connecting tube, drain pan, cover plate,
Hinge shell, baffle ring, every cold piece, base plate and shrouding, the connecting tube connects floor, and gusset is provided with the floor, described
Drain pan is arranged between connecting tube and cover plate, and inside the shell is provided with baffle ring, every cold piece and shrouding.It is distributed in inner arm pipe and outer
The end of arm pipe, all degree of freedom for constraining pipeline in the position are except the rotational freedom of X-direction, while the hinge constraint has
Drain pan, every cold piece design, to greatest extent reduce cold energy transmission.
Used as a kind of improvement of the present utility model, the plane restriction includes gusset, floor, connecting tube, drain pan, lid
Plate, guide plate and mat insulation, the gusset are arranged on floor, and connecting tube is arranged between drain pan and cover plate, described to lead
Heat-insulating shield is provided with to outside plate, plane restriction is distributed in inner arm pipe and outer arm tube end, constrains the X-direction of the position pipeline
Translation, Y, the rotational freedom of Z-direction, while discharging the rotational freedom and Y, the translational degree of freedom of Z-direction of X-direction, this can
So that inner arm pipe and external arm tube Free Transform.The restraining structure is also with every cold design, preventing in excessive pipe cold energy transmission
To supporting construction.
As it is of the present utility model it is a kind of improve, the axle constraint include fixed plate, connecting plate, floor, anchor ear, every cold piece
And fastening plates, the fixed plate, connecting plate, floor are arranged around pipeline circular arc, described to be arranged on what axle was constrained every cold piece
Inside, axle constraint is except release axial direction（Z-direction）Translational degree of freedom and it is rotatably mounted be outside one's consideration, remaining all degree of freedom is restrained, this
Sample can freely stretch, rotate along Z-direction translation and rotation because of the pipe deforming that the temperature difference causes, therefore the constrained type is disposed in
The two ends of column inner tube, it is ensured that pillar duct is flexible freely, as shown in Figure 3.The structure with the structure of tube contacts be directly every
Cold composite, every cold composite thickness according to medium temperature, the weather environment residing for equipment, equipment size, every cold material
Material parameter of material itself etc. is calculated and is determined.
Relative to prior art, advantage of the present utility model is as follows, and 1）Whole Technical Design is ingenious, and simple structure is tight
Gather, 2）No matter the technical scheme makes tubing by carrying out appropriate design to the constraint between supporting construction and tubing
It is at ambient temperature or can keeps freely stretching under ultralow-temperature operation conditions, and then eliminates the planted agent that temperature deformation is produced
Power；Overcome the technical barrier for perplexing the sector always；3）The technical scheme constrained is reasonable in design, it is to avoid pipeline is in volume
Surely load and unload resonance problem during flow, it is ensured that the safety in cargo handling process.
Description of the drawings
Fig. 1 is this loading arm overall structure diagram；
Fig. 2-1, Fig. 2-2, Fig. 2-3 connect ship view for existing loading arm；
Fig. 3 connects ship view for this utility model；
Fig. 4 is hinge restraining structure schematic diagram；
Fig. 4-1 is hinge constraint dimensional structure diagram；
Fig. 5 is plane restriction structural representation；
Fig. 5-1 plane restriction dimensional structure diagrams；
Fig. 6 is axle restraining structure schematic diagram；
Fig. 6-1 is that axle constrains dimensional structure diagram；
In figure：1st, column, 2, hydraulic pressure substation, 3,8,9 fluid power systems, 4, steel wire rope, 5 times rope sheaves, 6, Weight plate 10,
Rotating shaft case, 11, support case, 12, upper rope sheave, 13, flange-interface, 14, nitrogen purge system, 15, ejection escape system, 17, fast
Quick coupling, 18, inner arm pipe, 19, plane restriction, 20, hinge constraint, 23, maintenance platform, 24, outer arm it is spacing, 25, external arm tube, 26,
Axle is constrained, 27, column inner tube, 28, outer arm support, 201, gusset, 202, floor, 203, connecting tube, 204, drain pan, 205, lid
Plate, 206, hinge shell, 207, baffle ring 208, every cold piece, 209, base plate,
191st, gusset floor, 192, floor, 193, connecting tube, 194, drain pan, 195, cover plate, 196, guide plate, 197,
Mat insulation；261st, fixed plate, 262, connecting plate, 263, floor, 264, anchor ear, 265, every cold piece, 266, fastening plates.
Specific embodiment
In order to deepen to be appreciated and understood by of the present utility model, with reference to the accompanying drawings and detailed description, further explain
Bright this utility model.
Embodiment 1：
Referring to Fig. 1-Fig. 4, a kind of low temperature single tube loading arm peculiar to vessel, the single tube loading arm include supporting construction, pipeline system
System, fluid power system, maintenance platform 23, nitrogen purge system 14, ejection escape system 15, hydraulic pressure substation 2, upper rope sheave 12,
Steel wire rope 4 and lower rope sheave 5, the steel wire rope are arranged between rope sheave and lower rope sheave, and the supporting construction is used to support whole
The tubing of individual single tube loading arm, the maintenance platform are arranged on the top of loading arm, and nitrogen purge system is arranged on handling
Below arm, the hydraulic pressure substation is arranged on column side.Balancing weight 6 is additionally provided with the loading arm and is arranged on the tail for supporting case
Portion, is arranged on the flange-interface 13 of bottom, and the snap joint 17 of outer arm front end；The supporting construction is wrapped from the bottom up successively
Include column 1, rotating shaft case 10, support case 11 and outer arm to support 28, column is arranged on rotating shaft lower box part.The tubing includes
Column tube 27, inner arm pipe 18 and external arm tube 25, wherein column tube are arranged in column, and the upper and lower ends of column tube adopt axle about
Beam has a rotational freedom and a translation freedoms, and total degree of freedom is 2, as indicated with 6, it is ensured that pillar duct is vertically
It is flexible freely, axially rotate freedom；Inner arm pipe one end is only one of which rotational freedom using hinge constraint, and total degree of freedom is 1,
As shown in figure 4, the other end has a rotational freedom and two translation freedoms using plane restriction, total degree of freedom is 3, such as
Shown in Fig. 5；External arm tube one end is only one of which rotational freedom using hinge constraint, and total degree of freedom is 1, as shown in figure 4, the other end
One rotational freedom and two translation freedoms are contained using plane restriction, total degree of freedom is 3, as shown in Figure 5.The technology
Scheme is cleverly designed, it is ensured that under each operating mode, inside and outside arm pipeline relative support structure is freely stretched.
Embodiment 2：
Referring to Fig. 1, Fig. 4, Fig. 4-1, used as a kind of improvement of the present utility model, the hinge constraint includes gusset 201, floor
202nd, connecting tube 203, drain pan 204, cover plate 205, hinge shell 206, baffle ring 207, every cold piece 208, base plate 209 and shrouding
210, the connecting tube connects floor, and gusset is provided with the floor, and the drain pan is arranged between connecting tube and cover plate,
Inside the shell is provided with baffle ring, every cold piece and shrouding.Fig. 3 is seen in the end for being distributed in inner arm pipe and external arm tube, constrains pipeline and exists
All degree of freedom of the position remove the rotational freedom of X-direction, as shown in Figure 4.The hinge constraint is with drain pan, every cold piece simultaneously
Design, reduces the transmission of cold energy to greatest extent.
Embodiment 3：
Referring to Fig. 1, Fig. 5, Fig. 5-1, used as a kind of improvement of the present utility model, the plane restriction includes gusset 191, rib
Plate 192, connecting tube 193, drain pan 194, cover plate 195, guide plate 196, and mat insulation 197, the gusset 191 are arranged on rib
On plate 192, connecting tube 193 is arranged between drain pan 194 and cover plate 195, is provided with heat-insulating shield outside the guide plate, is put down
Face constraint is distributed in inner arm pipe and outer arm tube end, constrains the X-direction translation of the position pipeline, Y, the rotational freedom of Z-direction,
The rotational freedom and Y, the translational degree of freedom of Z-direction of X-direction are discharged simultaneously, and this can cause inner arm pipe and external arm tube freely to become
Shape.As shown in Figure 5.The restraining structure is also with every cold design, preventing cold energy in excessive pipe to be transferred to supporting construction.
Embodiment 4：
Referring to Fig. 1, Fig. 6, Fig. 6-1, used as a kind of improvement of the present utility model, the axle constraint includes fixed plate 261, connects
Fishplate bar 262, floor 263, anchor ear 264, every cold piece 265 and fastening plates 6, the fixed plate 261, connecting plate 262, floor 263
Arrange around pipeline circular arc, release is removed axially in the inside that axle constraint is arranged on every cold piece, axle constraint（Z-direction）Translation freedom
Degree and it is rotatably mounted be outside one's consideration, remaining all degree of freedom is restrained, the pipe deforming for so causing because of the temperature difference can along Z-direction translation and
Rotate, freely stretch, rotate, therefore the constrained type is disposed in the two ends of column tube, it is ensured that pillar duct is flexible freely, such as
Shown in Fig. 3.The structure is directly every cold composite, every the thickness foundation medium temperature of cold composite with the structure of tube contacts
Degree, the weather environment residing for equipment, equipment size, calculate and determine every the material parameter etc. of cold material itself.
At least one of technical characteristic described in embodiment 2,3,4 can also be combined shape with embodiment 1 by this utility model
The embodiment of Cheng Xin.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model, not for limiting this
The protection domain of utility model, the equivalent made on the basis of above-mentioned technical proposal or replacement, belong to practical
New protection domain.
Claims (6)
1. a kind of low temperature single tube loading arm peculiar to vessel, it is characterised in that the single tube loading arm include supporting construction, tubing,
Fluid power system, maintenance platform, nitrogen purge system, ejection escape system, hydraulic pressure substation, upper rope sheave, steel wire rope and under
Rope sheave, the steel wire rope are arranged between rope sheave and lower rope sheave, and the supporting construction is used for the pipeline for supporting whole loading arm
System, the maintenance platform are arranged on the top of loading arm, and nitrogen purge system is arranged near loading arm inlet flange, described
Hydraulic pressure substation is arranged on column side.
2. a kind of low temperature according to claim 1 single tube loading arm peculiar to vessel, it is characterised in that the supporting construction is from lower past
On include column, rotating shaft case successively, support case and outer wall support, column to be arranged on the bottom of hydraulic pressure substation.
3. a kind of low temperature according to claim 2 single tube loading arm peculiar to vessel, it is characterised in that the tubing includes standing
Column jecket, inner arm pipe and external arm tube, wherein column tube are arranged in column, and the upper and lower ends of column tube ensure vertical using axle constraint
Column jecket road it is axially retractable it is free, axially rotate freedom；Inner arm pipe one end adopts plane restriction using hinge constraint, the other end；
External arm tube one end adopts plane restriction using hinge constraint, the other end.
4. a kind of low temperature according to claim 1 single tube loading arm peculiar to vessel, it is characterised in that the hinge constraint includes gusset
（201）, floor（202）, connecting tube 203）, drain pan（204）, cover plate（205）, hinge shell（206）, baffle ring（207）, every cold piece
（208）, base plate（209）And shrouding（210）, the connecting tube connects floor, gusset is provided with the floor, described to drip
Disk is arranged between connecting tube and cover plate, and inside the shell is provided with baffle ring, every cold piece and shrouding, hinge constraint be distributed in inner arm pipe and
The end of external arm tube, all degree of freedom for constraining pipeline in the position are except the rotational freedom of X-direction.
5. a kind of low temperature according to claim 1 single tube loading arm peculiar to vessel, it is characterised in that the plane restriction includes muscle
Plate（191）, floor（192）, connecting tube（193）, drain pan（194）, cover plate（195）, guide plate（196）, and mat insulation
（197）, the gusset（191）It is arranged on floor（192）On, connecting tube（193）It is arranged on drain pan（194）And cover plate（195）
Between, heat-insulating shield is provided with outside the guide plate, plane restriction is distributed in inner arm pipe and outer arm tube end, constrains the position
The X-direction translation of pipeline, Y, the rotational freedom of Z-direction, while discharging rotational freedom and Y, the translation of Z-direction of X-direction
Degree of freedom, this can cause inner arm pipe and external arm tube Free Transform.
6. a kind of low temperature according to claim 1 single tube loading arm peculiar to vessel, it is characterised in that the axle constraint includes fixation
Plate（261）, connecting plate（262）, floor（263）, anchor ear（264）, every cold piece（265）And fastening plates（6）, the fixed plate
（261）, connecting plate（262）, floor（263）Arrange around pipeline circular arc, the inside that axle constraint is arranged on every cold piece, axle
Constraint is except release axial direction（Z-direction）Translational degree of freedom and it is rotatably mounted be outside one's consideration, remaining all degree of freedom is restrained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620550761.9U CN206051538U (en) | 2016-06-08 | 2016-06-08 | Low temperature single tube loading arm peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620550761.9U CN206051538U (en) | 2016-06-08 | 2016-06-08 | Low temperature single tube loading arm peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051538U true CN206051538U (en) | 2017-03-29 |
Family
ID=58372557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620550761.9U Withdrawn - After Issue CN206051538U (en) | 2016-06-08 | 2016-06-08 | Low temperature single tube loading arm peculiar to vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206051538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858584A (en) * | 2016-06-08 | 2016-08-17 | 连云港佳普石化机械有限公司 | Single pipe loading and unloading arm for low-temperature ship |
-
2016
- 2016-06-08 CN CN201620550761.9U patent/CN206051538U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858584A (en) * | 2016-06-08 | 2016-08-17 | 连云港佳普石化机械有限公司 | Single pipe loading and unloading arm for low-temperature ship |
| CN105858584B (en) * | 2016-06-08 | 2018-08-21 | 连云港佳普石化机械有限公司 | Low temperature single tube loading arm peculiar to vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170329 Effective date of abandoning: 20180821 |