CN107933827A

CN107933827A - Crude Oil at Sea transfer platform anchor chain cause lead device

Info

Publication number: CN107933827A
Application number: CN201711132074.0A
Authority: CN
Inventors: 韩先锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2018-04-20
Anticipated expiration: 2037-11-15
Also published as: CN107933827B

Abstract

The present invention provides Crude Oil at Sea transfer platform anchor chain cause lead device, belong to Ship Anchoring field, including chain cave, hanger bracket and the base transferred on platform deck can be fixed on, hanger bracket is frame structure, the lateral shaft and longitudinal axis being fixedly connected are equipped with hanger bracket, lateral shaft both ends are rotatablely connected with hanger bracket, and longitudinal axis both ends are connected through hanger bracket framework and with base rotation, chain acupuncture point is fixedly connected below hanger bracket and with hanger bracket, and lateral shaft and longitudinal axis are interconnection.Crude Oil at Sea provided by the invention transfer platform anchor chain cause lead device, can be in the chain cave of lateral shaft and longitudinal shaft movement by the way that anchor chain is suspended on, anchor chain is avoided to contact with deck and the direct of gunnel, reduce anchor chain rupture pull force caused by mechanical wear to reduce, reduce the oil-spill risk brought by the anchor chain fracture accident of dragging of anchor.

Description

Crude Oil at Sea transfer platform anchor chain cause lead device

Technical field

It is to be related to the transfer anchor chain of platform of Crude Oil at Sea to cause more specifically the invention belongs to Ship Anchoring technical field Lead device.

Background technology

Since 2014, China had become the crude oil import state of global maximum, and China has been built up and at present Build Ningbo (Zhoushan), Dalian, Xiamen, Zhanjiang, North Sea strategy storage tank farm.By VLCC (Very Large since 2014 Crude Carrier ultra large crude carrier) harbour quantity and unload can power restriction, the VLCC to be unloaded in national deep water oil port overstocks a harbour sternly Weight.To alleviate the contradiction of crude oil ship deep-water berth deficiency, Crude Oil at Sea is set to transfer platform just in 30-50 nautical miles of anchorage of offshore Very necessary, this single point mooring's crude oil loading/unloading platform is transferred transfer for imported crude oil.

Transfer platform at sea single point mooring when, for safety, usually with increasing the anchor chain strengthened and anchor come mooring Platform is refuted, at this time in order to cost-effective, Bower Anchor chains of choosing directly take gunnel more from platform the stem list side of a ship (such as larboard) deck of transferring Upper edge is stretched out outside platform, such Bower Anchor chain and transfer platform deck gunnel fender and deck direct physical contact.Transfer platform Under tide effect, irregular movement is done centered on Bower Anchor；In addition, it is flat to transfer in stormy waves synergy and handling goods Drinking water change occurs for platform, and platform of transferring will appear from vacillating and lifting movement, and anchor chain is twisted with deck fender, collides, worn, long This is conventional, and the diameter of three and half or so time anchor chain will reduce 15%, and anchor chain abrasion will reduce the rupture pull force of anchor chain, this is tight It has impact on the safety in pool for platform of transferring again, or even when anchor chain heavy wear, it may occur that drag of anchor accident, greatly increase The risk of oil spill accident occurs.

The content of the invention

It is an object of the invention to provide Crude Oil at Sea transfer platform anchor chain cause lead device, with solve exist in the prior art Because anchor chain and fender and deck physical contact for a long time and caused by wear, reduce the rupture pull force of anchor chain, or even anchor occurs Chain is broken and causes the technical problem of oil spill accident.

To achieve the above object, the technical solution adopted by the present invention is：Crude Oil at Sea transfer platform anchor chain cause lead device, wrap Include chain cave, hanger bracket and the base transferred on platform deck can be fixed on, the hanger bracket is frame structure, the hanger bracket It is interior to be rotatablely connected equipped with the lateral shaft and longitudinal axis that are fixedly connected, the lateral shaft both ends with the hanger bracket, the longitudinal direction Axis both ends through the hanger bracket framework and be connected with the base rotation, the chain acupuncture point in hanger bracket lower section and It is fixedly connected with the hanger bracket, the lateral shaft and longitudinal axis are interconnection.

Further, open up can be for hawsehole that anchor chain passes through in the chain cave.

Further, the hanger bracket opens up bearing hole with lateral shaft both ends junction, is set in the bearing hole There is bearing, the lateral shaft both ends coordinate with the bearing inner race respectively.

Further, the base opens up bearing hole with longitudinal axis both ends junction, is equipped with the bearing hole Bearing, the longitudinal axis both ends coordinate with the bearing inner race respectively.

Further, the hanger bracket respectively opens up a via, the longitudinal axis two along the both ends of longitudinal direction of principal axis End is connected through the via with the base.

Further, 4.5 times of a height of longitudinal shaft diameter in the via hole, longitudinal shaft diameter described in Kong Kuanwei 3.5 again.

Further, the bearing at the longitudinal axis both ends is ball bearing.

Further, the hawsehole aperture is at least Bower Anchor chain and increases 1.5 times of chain width.

Further, the chain hill spacing is at least the length of a Bower Anchor chain chain link from altitude above deck.

Further, base platform fore body main deck side board of being close to transfer is welded on main deck, the chain cave The axial direction of hawsehole is vertical in the side of a ship line direction of the base mounting orientation with platform of transferring.

The transfer anchor chain of platform of Crude Oil at Sea provided by the invention is caused to lead the beneficial effect of device and is：With prior art phase Transferring than, Crude Oil at Sea of the present invention, cause to lead device can be around lateral shaft and longitudinal shaft movement by the way that anchor chain is suspended on for the anchor chain of platform Chain cave in, avoid directly contacting for anchor chain and deck and gunnel, reduce anchor chain disrumpent feelings drawing caused by mechanical wear Power reduces, and reduces the oil-spill risk brought by the anchor chain fracture accident of dragging of anchor.

Brief description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description be only the present invention some Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these Attached drawing obtains other attached drawings.

Fig. 1 is that the transfer anchor chain of platform of Crude Oil at Sea provided in an embodiment of the present invention causes to lead the overlooking structure figure of device；

Fig. 2 is Figure 1A-A to sectional view；

Fig. 3 is Figure 1B-B to sectional view；

Fig. 4 is Fig. 1 C-C to sectional view；

Fig. 5 is Fig. 1 D-D to sectional view；

Fig. 6 for existing Crude Oil at Sea provided in an embodiment of the present invention transfer platform anchor chain be laid with state diagram；

Fig. 7 is that the transfer anchor chain of platform of Crude Oil at Sea provided in an embodiment of the present invention causes to lead the usage state diagram of device；

Wherein, each reference numeral in figure：

1- chains cave；2- hanger brackets；3- lateral shafts；4- longitudinal axis；5- hawseholes；6- bases.

Embodiment

In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position System, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the present invention, " multiple ", " several " be meant that two or Two or more, unless otherwise specifically defined.

Also referring to Fig. 1 to Fig. 7, the anchor chain cause for platform of now transferring to Crude Oil at Sea provided by the invention is led device and is said It is bright：Crude Oil at Sea transfer platform anchor chain cause lead device, including chain cave 1, hanger bracket 2 and base 6, hanger bracket 2 is oval frame Structure, oval long axis direction is parallel longitudinal with platform of transferring, and oval short-axis direction is horizontally-parallel with platform of transferring, Oval short axle both ends are arranged to two sections of straight-bars parallel to each other；There is cross one another lateral shaft 3 inside 2 framework of hanger bracket With longitudinal axis 4, lateral shaft 3 and longitudinal axis 4 can be integral structure or lateral shaft 3 is divided into two sections and is welded on longitudinal direction The middle part of axis 4 or longitudinal axis 4 are divided into two sections and are welded on the middle part of lateral shaft 3, axle center, that is, hanger bracket 2 of lateral shaft 3 it is short Axis, the major axis of axle center, that is, hanger bracket 2 of longitudinal axis 4,3 both ends of lateral shaft are connected with hanger bracket 2 and lateral shaft 3 can be around axis The heart rotates, and 4 end of longitudinal axis passes through the major axis end of hanger bracket 2, and 4 both ends of longitudinal axis are connected to 6 top of base, wherein The via aperture passed through for longitudinal axis 4 that hanger bracket 2 opens up is more than the diameter of longitudinal axis 4, longitudinal axis 4 is had in via necessarily Activity space；1 transverse width of chain cave is identical with 2 transverse width of hanger bracket, and chain cave 1 is longitudinally wide with 2 straight bar part of hanger bracket Length it is identical, 1 transverse ends portion of chain cave is respectively provided with a contiguous block projected upwards, two contiguous blocks respectively with hanger bracket 2 The lower surface of straight bar part welds together, and realizes being fixedly connected for chain cave 1 and hanger bracket 2, chain cave 1 and the connection of hanger bracket 2 Mode can also be drilled with threaded hole in the part of hanger bracket 2 and the contact of chain cave 1, both are linked together by bolt；This The transfer anchor chain of platform of the Crude Oil at Sea of invention causes to lead device total and be fixed on by base in the bow deck for platform of transferring.

Crude Oil at Sea provided by the invention transfer platform anchor chain cause lead device, compared with prior art, by the way that anchor chain is hanged Hang over and can avoid anchor chain in the chain cave of lateral shaft and longitudinal shaft movement and contacted with deck and the direct of gunnel, reduced Anchor chain rupture pull force caused by mechanical wear reduces, and reduces the oil spilling wind brought by the anchor chain fracture accident of dragging of anchor Danger.

Preferably, such as Fig. 2,1 lower part of chain cave opens up can be for the hawsehole 5 that anchor chain passes through, and the aperture of hawsehole 5 is extremely It is few to increase wide 1.5 times of anchor chain chain, it is ensured that anchor chain can be passed through smoothly from hawsehole 5 when chain cave 1 swings to diverse location, be prevented Only with hawsehole 5 violent friction and extruding occur for anchor chain, so as to cause to damage to anchor chain during the motion.

Preferably, hanger bracket 2 and 3 both ends junction of lateral shaft open up groove, as bearing hole, installation axle in groove Hold, lateral shaft 3 is connected to bearing inner race, and bearing outer ring is connected to groove inner wall, and the bearing hole of 3 end of lateral shaft can be through The through hole of 2 framework of hanger bracket, the interior installation bearing of through hole, installs bearing (ball) cover additional in the outer end of bearing hole, plays to the spacing of bearing And protective effect；Equally, groove is opened up in base 6 and 4 both ends junction of longitudinal axis, bearing is installed, longitudinal axis 4 blocks in groove Bearing inner race is connected on, bearing outer ring is connected to groove inner wall, and after installing bearing, the pivoting of lateral shaft 3 and longitudinal axis 4 is more Flexibly.

Preferably, such as Fig. 4, the structure of hanger bracket 2 is to be gradually reduced from longitudinal axis 4 to the transition section of lateral shaft 3, The end cross-sectional passed through with longitudinal axis 4 is maximum, to there is enough spaces to open up longitudinal axis 4 can be made to have certain activity space Via, chain cave 1 are fixedly connected with hanger bracket 2, and hanger bracket is connected by bearing with lateral shaft 3, and lateral shaft 3 is fixed with longitudinal axis 4 Connection, so after hawsehole of the anchor chain by 1 lower part of chain cave, the movement of anchor chain drives chain cave 1 to move, and wherein chain cave 1 is done During around the movement of longitudinal axis 4, longitudinal axis 4 does pivoting by the bearing at both ends, and friction is reduced in motion process, but It is that, when chain cave 1, which is done, is moved around lateral shaft 3, due to lateral shaft 3 with longitudinal axis 4 to be fixedly connected, lateral shaft 3 cannot be done around axis Rotate, at this time, if realizing, chain cave 1 can be rotated around lateral shaft 3, can be by being opened up at both ends of the hanger bracket 2 along longitudinal axis 4 The larger via in aperture, longitudinal axis 4 can do the slight oscillatory around lateral shaft 3 in the vias.

Preferably, such as Fig. 5, it is contemplated that the movement overwhelming majority of the platform in marine site of berthing of transferring is swings, therefore It is the swing around longitudinal axis 4 that anchor chain, which drives the movement overwhelming majority in chain cave 1, and the pivoting of longitudinal axis 4 is unrestricted, can be with Significantly rotate, but platform of transferring also has slight swing, need at this time chain cave 1 have one by a small margin around lateral shaft 3 spaces swung, are achieved that chain cave 1 can be done slightly around lateral shaft 3 in the via that hanger bracket 2 is opened up along 4 end of longitudinal axis The rotation of degree, the amplitude of fluctuation with reference to chain cave 1 under actual conditions around lateral shaft 3,4 diameter of longitudinal axis is set to by the high a in the hole of via 4.5 times, the wide b in hole is set to 3.5 times of 4 diameter of longitudinal axis.

Preferably, the bearing at 4 both ends of longitudinal axis is ball bearing, 4 both ends of longitudinal axis are fixed on base 6, longitudinal direction Axis 4 drives whole hanger bracket 2 and lateral shaft 3 together around 4 axis rotation of longitudinal axis, when platform of transferring moves on sea, anchor chain Drive chain cave 1 to move, and the movement be not limited only to it is simple swung around longitudinal axis 4, chain cave 1 is also subject to its other party that anchor chain is brought To power, or else under the action of equidirectional power, common deep groove ball bearing is easily damaged, and one can be born using ball bearing Determine the power of degree different directions, extend the service life of bearing.

Preferably, chain cave 1 is at least the length of a Bower Anchor chain chain link apart from altitude above deck, anchor chain is passed through under chain cave 1 Gunnel is stretched out after the hawsehole 5 in portion, if height of the chain cave 1 apart from deck is less than the length of chain link, anchor chain is through anchor Deck plane can be still fallen to behind chain hole, and either gunnel and deck or gunnel produce friction, chain cave 1 avoided after raising anchor chain with Deck or the directly contact of gunnel, reduce the abrasion of anchor chain.

Preferably, such as Fig. 7, the platform fore body main deck side board of being close to transfer of base 6 is welded on main deck, hawsehole 5 Axial direction and platform of transferring it is vertical in the corresponding side of a ship line direction of 6 installation site of base, installation site as selection, ensure that Anchor chain directly stretches out after by chain cave 1 transfers outside platform, avoids the deck of anchor chain and platform of transferring and directly contacting for gunnel.

Further, also referring to Fig. 1 to Fig. 7, the anchor chain cause for platform of transferring as Crude Oil at Sea provided by the invention A kind of embodiment of device is led, the main first side board of platform stem of being close to transfer of base 6 is welded on main deck, base 6 is pacified After installing, the axial direction of the hawsehole 5 in chain cave 1 is vertical with the side of a ship line direction at 6 position of stage+module base of transferring, this mounting means It may insure that anchor chain can directly stretch out after by chain cave 1 to transfer outside platform；The Crude Oil at Sea of the present invention is transferred platform Anchor chain causes to lead after device installs, when Crude Oil at Sea transfer platform drive to specified marine site after, anchor chain is passed through into chain cave 1 on the outside of the side of a ship Hawsehole 5 and the anchor chain axis pin that is fixed on main deck on；Cast anchor after fixing, platform of transferring gushes synergy in stormy waves Drinking water change with being brought with cargo handling, will appear from lifting and oscillating motion, in the oscillating motion for transferring platform, anchor Chain drives chain cave 1 to swing together, and since chain cave 1 is fixedly connected with hanger bracket 2, the swing drive hanger bracket 2 one in chain cave 1 starts shipment Dynamic, when chain cave 1 is done around the swing of longitudinal axis 4, the movement of hanger bracket 2 passes to lateral shaft 3, and lateral shaft 3 is fixed with longitudinal axis 4 Connection, so the movement of lateral shaft 3 passes to longitudinal axis 4, total realizes the swing around longitudinal axis 4；When chain cave 1 is done around horizontal stroke During swing to axis 3, the movement in chain cave 1 drives hanger bracket 2, and because the connection of hanger bracket 2 and lateral shaft 3 is bearing connection, So it is chain cave 1 and hanger bracket 2 to do around the swing of lateral shaft 3,3 longitudinal axis 4 of lateral shaft does not follow to move together, at this time, due to Hanger bracket 2 opens up the via of hole 4 diameter of a height of 4.5 times of longitudinal axis along 4 end of longitudinal axis, hanger bracket 2 relative to longitudinal axis 4 fortune It is dynamic also to limit within this range, and pass through actual verification, this scope is more than the amplitude peak that chain cave 1 can be swung around lateral shaft 3； Chain cave 1 can be rotated around lateral shaft 3 and longitudinal axis 4, and lateral shaft 3 is that bearing connects with 4 end of longitudinal axis, is subject in anchor chain The power of different directions and cause anchor chain it is opposite transfer platform movement when, chain cave 1 substitutes original slip by flexibly rotating, this Sample anchor chain and the mechanical wear in chain cave 1 are minimum, since chain cave 1 is away from length of the altitude above deck more than a Bower Anchor chain chain link, anchor chain Will not directly it be contacted with deck and gunnel when being fallen to through hawsehole 5 on the outside of the side of a ship, avoiding problems anchor chain and deck and gunnel Friction, anchor chain, largely less anchor chain disrumpent feelings drawing caused by mechanical wear are set up using the method for 1 transition of chain cave Power reduces, and reduces the oil-spill risk brought by the anchor chain fracture accident of dragging of anchor, and because deck and gunnel surface are coated with Paint, avoids directly contacting for anchor chain and deck and gunnel, avoided while anchor chain abrasion is reduced because of anchor chain and deck and The friction of gunnel and produce spark, it is therefore prevented that because friction overheat or produce spark light skin of paint, cause fire incident.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims

1. Crude Oil at Sea is transferred, the anchor chain of platform causes to lead device, it is characterised in that：Transfer including chain cave, hanger bracket and being fixed on Base on platform deck, the hanger bracket are frame structure, and the lateral shaft being fixedly connected and longitudinal direction are equipped with the hanger bracket Axis, the lateral shaft both ends are rotatablely connected with the hanger bracket, and the longitudinal axis both ends pass through the hanger bracket framework simultaneously It is connected with the base rotation, the chain acupuncture point is fixedly connected below the hanger bracket and with the hanger bracket, the transverse direction Axis and longitudinal axis are interconnection.

2. Crude Oil at Sea as claimed in claim 1 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The chain cave opens up energy The hawsehole enough passed through for anchor chain.

3. Crude Oil at Sea as claimed in claim 1 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The hanger bracket and institute State lateral shaft both ends junction and open up bearing hole, be equipped with bearing in the bearing hole, the lateral shaft both ends respectively with it is described Bearing inner race coordinates.

4. Crude Oil at Sea as claimed in claim 3 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The base with it is described Longitudinal axis both ends junction opens up bearing hole, is equipped with bearing in the bearing hole, the longitudinal axis both ends respectively with the axis Hold inner ring cooperation.

5. Crude Oil at Sea as claimed in claim 4 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The hanger bracket is along institute The both ends for stating longitudinal direction of principal axis respectively open up a via, and the longitudinal axis both ends are connected through the via with the base.

6. Crude Oil at Sea as claimed in claim 5 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The via hole is a height of 4.5 times of the longitudinal direction shaft diameter, 3.5 times of longitudinal shaft diameter described in Kong Kuanwei.

7. Crude Oil at Sea as claimed in claim 4 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The longitudinal axis both ends Bearing be ball bearing.

8. Crude Oil at Sea as claimed in claim 2 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The hawsehole aperture At least 1.5 times of Bower Anchor chain increasing chain width.

9. such as claim 1-7 any one of them Crude Oil at Sea is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The chain Hill spacing is at least the length of a Bower Anchor chain chain link from altitude above deck.

10. Crude Oil at Sea as claimed in claim 2 is transferred, the anchor chain of platform causes to lead device, it is characterised in that：The base is close to Platform fore body main deck side board of transferring is welded on main deck, and the axial direction of the hawsehole in the chain cave is with transferring platform at the bottom The side of a ship line direction of seat installation site is vertical.