CN203855334U - Hoisting device in complex sea conditions - Google Patents
Hoisting device in complex sea conditions Download PDFInfo
- Publication number
- CN203855334U CN203855334U CN201420244981.XU CN201420244981U CN203855334U CN 203855334 U CN203855334 U CN 203855334U CN 201420244981 U CN201420244981 U CN 201420244981U CN 203855334 U CN203855334 U CN 203855334U
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- master vehicle
- offshore platform
- portal frame
- apparatus under
- 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.)
- Expired - Fee Related
Links
- 241000277275 Oncorhynchus mykiss Species 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000003949 liquefied natural gas Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model relates to a hoisting device in complex sea conditions. The hoisting device comprises an offshore platform, wherein a main automobile crane is arranged on the offshore platform, a secondary automobile crane which is matched tail turnover of the main automobile crane is arranged on one side of the offshore platform, which is positioned on the main automobile crane, a group of support legs which are evenly distributed are arranged on the main automobile crane, the bottom of each support leg is fixed on a subgrade box which corresponds to the support leg by virtue of a pressing plate, and a group of portal frames is arranged at the support leg. The hoisting device has the beneficial effects that the structure is simple, the operation is convenient, the safety is high, a million-ton barge is used as a freight platform, a 450-ton automobile crane is matched for hoisting, the hoisting transportation efficiency is improved, the cost is reduced, and the hoisting problem of large equipment in complex sea areas is effectively solved.
Description
Technical field
The utility model relates to the hanging apparatus under a kind of complicated sea situation, belongs to above-water hoisting technical field of construction.
Background technology
In LNG (liquefied natural gas) industry, unloading arm is that acception station is for unloading liquified natural gas and be delivered to one of visual plant of storage tank from ocean natural gas carrier vessel, each group unloading arm forms by rocking arm and basic steel column, wherein rocking arm is divided into cylinder and rocking arm two parts, the entire length of unloading arm is about 29.3m, heavily approximately 37.4 tons.Be generally used for the platform construction of installation unloading arm by the sea, for example border on the sea in Zhuhai LNG unloading arm platform four sides, has trestle in the east and be connected with plant area, and the level difference of sea level and unloading arm platform reaches 11m (when ebb tide), platform surrounding waters undercurrent, stormy waves is large.In unloading arm lifting construction, will run into like this lifting marine site sea situation complexity, the situation such as stormy waves is very big, causes unloading arm operating environment extremely to be disliked slightly.But also there is following particularity in unloading arm lifting construction:
1, the flange in the bottom of unloading arm need be with foundation built-in bolt to wearing, and institute's equipment that hangs is higher to lifting precision and Capability Requirement;
2, the distance in place between two unloading arms is very near, easily damaged in collision precision equipment;
3, the body of unloading arm is larger and irregular, and parts are more, seat transport difficulty.
What unloading arm lifting adopted under normal circumstances is generally swinging crane barge ship, and its tonnage is less, rocks greatlyr under complicated sea situation, cannot meet lifting requirements.Large-scale floating crane ship is all A-frame type substantially in addition, bull stick difficulty is difficult to meet the accuracy requirement of unloading arm lifting under complicated sea situation, and crane barge ship self with cargo space limited, must provide in addition transporter barge to have bad luck goods, increase hoisting cost and time.
Utility model content
The purpose of this utility model is: the problem existing for above-mentioned prior art, propose a kind of simple to operately, and cost is low, and the hanging apparatus under the high complicated sea situation of efficiency, for the operation of LNG unloading arm offshore lifting.
In order to reach above object, hanging apparatus under the complicated sea situation of the utility model, its improvements are, comprise offshore platform, offshore platform is provided with master vehicle and hangs, and be positioned at master vehicle at sea and hang a side and be provided with for coordinating master vehicle to hang the secondary wheel crane that slipping tail is stood up, and master vehicle hangs on and is provided with one group of well-distributed supporting leg on platform, wherein the bottom of each supporting leg is fixed on the subgrade case corresponding with supporting leg by pressing plate, and is provided with one group of portal frame at supporting leg place.
The utility model further improves, and offshore platform is the dull and stereotyped barge of ton.Master vehicle hangs and adopts 450 tons of wheel cranes, and secondary wheel crane adopts 50 tons of wheel cranes.
The utility model further improves, and supporting leg is fixedly mounted in the frame that master vehicle hangs by pipe link, and the middle part of pipe link is provided with the first portal frame, and the end of pipe link and supporting leg junction are provided with the second portal frame.First, second portal frame is welded to form by three shaped steel head and the tail, and wherein the crossbeam of first, second portal frame is fixed on pipe link.
The utility model further improves, and the cross section of pressing plate is L shaped, and one end of its center platen is welded on the bottom of supporting leg, and the other end is welded on the base board that is positioned at subgrade case upper end.
The utility model has the advantage of: the utility model is simple in structure, easy to operate, utilize ton barge as shipping platform, and coordinate 450 tons of wheel cranes to carry out lifting operation, improve hoisting transportation efficiency, reduce cost, safe, effectively solve the lifting problem of large equipment in complicated marine site.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the structural representation that in the utility model, master vehicle hangs.
Fig. 2 is the lateral plan of Fig. 1.
Fig. 3 is the rear structural representation of supporting leg fixed installation in the utility model.
Fig. 4 is work schematic diagram of the present utility model.
Fig. 5 is unloading arm schematic diagram in place in the utility model.
Barge drinking water schematic diagram when Fig. 6 is static.
Barge drinking water schematic diagram when Fig. 7 is crane lifting.
Fig. 8 is barge centre of form schematic diagram.
In figure: 1. offshore platform, 2. master vehicle hangs, 3. secondary wheel crane, 4. unloading arm, 5. supporting leg, 6. pressing plate, 7. subgrade case, 8. pipe link, 9. the first portal frame, 10. the second portal frame, 11. base boards.
Detailed description of the invention
Embodiment mono-
Hanging apparatus under the complicated sea situation of the present embodiment, its structure as shown in Figure 4, comprise offshore platform 1, offshore platform 1 is the dull and stereotyped barge of ton, offshore platform 1 is provided with master vehicle that can handling LNG unloading arm 4 and hangs 2, on platform 1, be positioned at master vehicle at sea and hang 2 one sides and be provided with for coordinating master vehicle to hang the secondary wheel crane 3 that 2 slipping tails are stood up, wherein master vehicle hangs 450 tons of wheel cranes of 2 employing, and secondary wheel crane 3 adopts 50 tons of wheel cranes.
In addition, as shown in Figure 1 to Figure 3, master vehicle hangs 2 and is provided with four supporting legs that are evenly distributed 5, wherein the bottom of each supporting leg 5 is fixed on subgrade case 7 by pressing plate 6, the cross section of pressing plate 6 is L shaped, one end of its center platen 6 is welded on the bottom of supporting leg 5, and the other end is welded on the base board 11 that is positioned at subgrade case 7 upper ends.Subgrade case 7 is laid on dull and stereotyped barge, has four, the corresponding supporting leg 5 of each subgrade case 7, and be provided with one group of portal frame at supporting leg 5 places.Supporting leg 5 is fixedly mounted on master vehicle by pipe link 8 and hangs in 2 frame, the middle part of pipe link 8 is provided with the first portal frame 9, the end of pipe link 8 and supporting leg 5 junctions are provided with the second portal frame 10, first, second portal frame 9,10 head and the tail of the shaped steel by three H200*200 are welded to form, and wherein the crossbeam of first, second portal frame 9,10 is fixed on pipe link 8.
When LNG unloading arm 4 lifting operation, dull and stereotyped barge as offshore platform 1 is reached after harbour, by the gap bridge of building temporarily, 450 tons of master vehicles being hung to 2 and 50 tons of secondary wheel cranes 3 reaches on dull and stereotyped barge, dull and stereotyped barge arrives specifies after Hoisting Position, master vehicle is hung to 2 and carry out kick, fixing, then master vehicle hangs the 2 LNG unloading arms 4 of slinging and carries out lifting operation.When operation, adopt 10,000 tons of dull and stereotyped barges and 450 tons of master vehicles to hang 2 cooperations and lift, adopt 50 tons of secondary wheel cranes 3 to coordinate slipping tail to stand up operation (seeing Fig. 4 and Fig. 5) simultaneously.
In addition, in the time of the 4 offshore lifting operation of LNG unloading arm, need carry out data accounting.First the stability of Ship ', for example adopt long 120 meters, wide 32 meters, 5.8 meters of drafts, the barge that total depth is 5.8 meters, the crane on it is together with 240 tons of lift heavy and accessory gross weights, according to the requirement that manufactures and designs of crane, the weight of single leg is no more than 3/4 of gross weight, i.e. leg 5 load-bearing 3/4, another leg load-bearing 1/4 (seeing Fig. 6).According to barge draft, the weight of barge is 5.8 × 32 × 120 × 1=22272 ton.When crane lifts by crane on barge, barge has slight inclination angle, and establishing angle is α, and the water length that enters of simultaneously establishing the few side of barge drinking water is X1 (seeing Fig. 7), according to water buoyant equilibrium:
(X1+X1+32 × tg α) × 32 ÷ 2 × 120 × 1=22272+240 (formula 1)
This crane deadweight adds totally 240 tons of hoisting weights, 22272 tons of barge deadweights, and hoisting weight is about 1% of barge deadweight, and therefore the deviation angle of barge is very little.Drinking water part after barge is tilted is divided into two, and is respectively triangle and rectangle, and the centre of form distance of each several part is shown in Fig. 8.The centre of form 2 to the horizontal throw of the barge centre of form is
According to each several part, the principle of moment balance of the barge centre of form is drawn:
240 × 10.75=32 × tg α × 32 ÷ 2 × 120 × 1 × 5.33333-X1 × 32 × 120 × 1 × 1.0 × tg α (formula 2)
Formula 1 is reduced to
bringing formula 2 into obtains:
X1
2-91.19538X1+489.4822206＝0
According to quadratic equation solution formula:
b
2-4ac＝91.19538
2-4×1×489.4822206＝6358.668451
Solve:
this place gets 5.727.
:
Can obtain α=0.484 °.
As calculated, angle of inclination is only 1 ° of α=0.484 ° <, and angle is very little, and barge is in stabilized conditions under the effect of water buoyancy, and lifting meets safety requirements.
Secondly, calculate unloading arm 4 and lift load, 1), Q1=Q × K1 × K2
＝(29.3/2+1.5)×1.3×1.2
＝25.2(T)
Q1: the upright slipping tail assumed (specified) load of cooperating equipment
Q: equipment, steel rope, suspender weight (T)
K1: dynamic factor (considering that wind carries, and is increased to 1.3 by Dynamic factor) K2: unbalance factor
2)、Q2＝Q×K
＝(29.3+1.5)×1.3
＝40.04(T)
Q2: single hook lifting appliance assumed (specified) load
Q: equipment, steel rope, suspender weight (T)
K: dynamic factor (considering that wind carries, and is increased to 1.3 by Dynamic factor)
3), crane operating mode: crane is selected 450 tons of crane main hoistings, 50 tons of crane slipping tails
Operating mode when unloading arm stands up: 450 tons of cranes, principal arm 54.6m, radius of turn 16m, height 52.2m, 51 tons of rated load weights; 50 tons of cranes, principal arm 10.7m, radius of turn 5.5m, 28 tons of rated load weights.
Operating mode when unloading arm is in place: 450 tons of cranes, principal arm 54.6m, radius of turn 16m, height 52.2m, 51 tons of rated load weights.
The specified lifting weight of the crane of main hoisting, slipping tail is all far more than lifting weight, therefore meet the demands.
2.3.3 safety distance is checked
This programme safety distance is mainly gib head surplus and checks.450 tons of cranes are under the operating mode of 16 meters of radiuses, and hoisting height is that 52.5m. is shown in formula below:
H＝L1+L2+L3+L4＝10+19.3+11+8＝48.3m
Wherein: L1-basic steel column one height
L2-rocking arm height
L3-dull and stereotyped barge and harbour basic plane height
L4-steel rope, gib head height
H=48.3 ﹤ 52.5, gib head surplus is checked safety.
Finally, select and check steel rope, the selecting of main hoisting steel rope
A: 30 tons of the actual hook loads of known unloading arm, 4 strands of the steel ropes of points 2.Be calculated as follows according to formula:
S: the pulling force (T) that single wire rope bears;
Q: the weight (T) that single wire rope hangs;
N: 24 strands of the radicals of steel rope;
β: the angle 60 of steel rope and horizontal surface
°;
K: safety factor gets 8;
S＝(Q)×(1/sinβ)
＝(30/4)×(1/sin60
°)
＝8.66T
Steel rope is selected single bifilar rope
P＝S×K/C
＝8.66×8/0.82
＝84.5T
Be 845KN
It is 1770/MPA that steel rope is selected nominal tensile strength, 6 × 37S+FC Fibre-core cable.Look into standard GB-8918-2006, select 40mm Fibre-core cable (1010KN) to meet the demands.According to field condition, select length of steel rope 8m × 4 piece, steel rope needs encapsulate processing, in case wear equipment.
In addition to the implementation, the utility model also can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, drop on the protection domain of the utility model requirement.
Claims (6)
1. the hanging apparatus under a complicated sea situation, it is characterized in that: comprise offshore platform, described offshore platform is provided with master vehicle and hangs, on described offshore platform, being positioned at master vehicle hangs a side and is provided with for coordinating master vehicle to hang the secondary wheel crane that slipping tail is stood up, described master vehicle hangs on and is provided with one group of well-distributed supporting leg, the bottom of wherein said each supporting leg is fixed on the subgrade case corresponding with described supporting leg by pressing plate, and is provided with one group of portal frame at described supporting leg place.
2. the hanging apparatus under complicated sea situation according to claim 1, is characterized in that: described offshore platform is the dull and stereotyped barge of ton.
3. the hanging apparatus under complicated sea situation according to claim 1, is characterized in that: described master vehicle hangs and adopts 450 tons of wheel cranes, and described secondary wheel crane adopts 50 tons of wheel cranes.
4. the hanging apparatus under complicated sea situation according to claim 1, it is characterized in that: described supporting leg is fixedly mounted in the frame that master vehicle hangs by pipe link, the middle part of described pipe link is provided with the first portal frame, and the end of described pipe link and supporting leg junction are provided with the second portal frame.
5. the hanging apparatus under complicated sea situation according to claim 4, is characterized in that: described first, second portal frame is welded to form by three shaped steel head and the tail, and the crossbeam of wherein said first, second portal frame is fixed on pipe link.
6. the hanging apparatus under complicated sea situation according to claim 1, is characterized in that: the cross section of described pressing plate is L shaped, one end of wherein said pressing plate is welded on the bottom of supporting leg, and the other end is welded on the base board that is positioned at subgrade case upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244981.XU CN203855334U (en) | 2014-05-13 | 2014-05-13 | Hoisting device in complex sea conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244981.XU CN203855334U (en) | 2014-05-13 | 2014-05-13 | Hoisting device in complex sea conditions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203855334U true CN203855334U (en) | 2014-10-01 |
Family
ID=51605202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420244981.XU Expired - Fee Related CN203855334U (en) | 2014-05-13 | 2014-05-13 | Hoisting device in complex sea conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203855334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629423A (en) * | 2016-10-27 | 2017-05-10 | 泰州三福船舶工程有限公司 | Crane joint-hanging testing device and method |
-
2014
- 2014-05-13 CN CN201420244981.XU patent/CN203855334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629423A (en) * | 2016-10-27 | 2017-05-10 | 泰州三福船舶工程有限公司 | Crane joint-hanging testing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101492140B (en) | Aluminum alloy catamaran whole-boat afloat process | |
| CN103233452B (en) | The pre-splicing 1/4 cylinder transportation resources of a kind of lattice steel sheet pile large cylinder nominative sheet pile | |
| CN101850831A (en) | Hoisting method of living area block of large ocean maritime work platform | |
| CN201056284Y (en) | Elevator apparatus of navigation bridge building and bending and lifting equipment of steel tower on upper part of bridge building | |
| CN202765242U (en) | Accommodation ladder device for arriving at or leaving fixed offshore platform | |
| CN102328732A (en) | Offshore pile driving, pile pressing and installing united engineering ship | |
| CN103193163A (en) | Entrance dock installation method for gantry crane of shipyard | |
| CN103693170A (en) | Floating type offshore wind power assembly platform and method using floating type offshore wind power assembly platform for assembly offshore wind turbine | |
| US20150217838A1 (en) | Method for lowering and hoisting of a load to or from an ocean floor | |
| CN103661827A (en) | Installation system and construction method of wind turbine assembly in sea intertidal zone | |
| CN101870435B (en) | Overturned hoisting method for helicopter platform | |
| CN207060358U (en) | Large Offshore Structures semi-submerged ship floats installing and applied | |
| CN206635654U (en) | A kind of barging device of underwater narrow-bore tunnel super long type prefabricated case beam | |
| CN103195038A (en) | Method for forming self-elevating artificial island through connection of platform units | |
| CN203855334U (en) | Hoisting device in complex sea conditions | |
| CN206142022U (en) | Steel tray is used in submarine cable transportation | |
| CN104828713A (en) | Compliant support frame and installation method of compliant support frame to large floating crane boom | |
| CN102206938A (en) | Novel method for installing upper part block of offshore platform | |
| CN108674597A (en) | A kind of jack up wind-powered electricity generation mounting platform | |
| CN103434947B (en) | offshore transfer gantry crane | |
| CN103552655A (en) | On-water mounting method for stinger on pipe-laying ship with lifting capacity of 400 tons | |
| CN209958384U (en) | Truss type berthing structure for high-rise pile cap foundation | |
| CN1407182A (en) | Bridge style stone rolling dock | |
| CN202164066U (en) | Hoisting device for large-scale articles | |
| CN103693168B (en) | The water transportation system of marine LNG storage tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |