CN117799797A - Ship anchor chain installation method - Google Patents

Abstract

The application discloses a method for installing a ship anchor chain, which comprises the following steps: connecting a plurality of sections of sub-anchor chains to form a first section of anchor chain, and hoisting the first section of anchor chain to a bow building deck; the tail end of the first section of anchor chain is arranged on an anchor chain roller by matching with a crane; the first section of anchor chain part of the crane is matched into the cabin, and the tail end of the first section of anchor chain can be arranged on the anchor discarding device; the first section of anchor chain is fixed with the anchor discarding device; the first section of the anchor chain is mostly put into the cabin; the head end of the first section of anchor chain enters an anchor chain barrel; the head end of the first section of anchor chain is lowered to the ground; the rest sub-anchor chains and the anchor heads are connected. According to the ship anchor chain installation method, through the mutual matching of the crane and the anchor machine, the unidirectional controllable operation steps are adopted to decompose stress among the anchor machine, the crane and the anchor chain, the stress is controlled one by one, multiple protection measures are adopted to form good safety control, the situations of multipoint operation and unbalanced multipoint stress are avoided, efficient and safe installation operation of the anchor chain is realized, and the construction quality and the construction safety are improved.

Description

Ship anchor chain installation method

Technical Field

The application relates to the technical field of ships, in particular to a method for installing a ship anchor chain.

Background

The anchor chain consists of an anchor head and a plurality of sections of sub anchor chains, each sub anchor chain consists of a common chain ring, a connecting shackle, a swivel and the like, and the anchor chains are used for connecting the anchors and the ship body to transfer the grasping force generated by the anchors, so that the effect of counteracting the external force on the ship is realized, and the ship can be safely moored in a designated water area.

For the installation of the anchor chain of a large ship, the crane is usually required to work together with the anchor machine to assist in the installation, however, the stress dynamic changes of the crane and the anchor machine are complex, the strength is difficult to control, the situation that the crane and the anchor machine are simultaneously stressed and pulled mutually easily occurs, and high danger exists.

Accordingly, there is a need for a method of installing a ship anchor chain to solve the above problems.

Disclosure of Invention

It is an object of the present application to solve or at least mitigate some or all of the above problems. To this end, it is an object of the present application to provide a method of installing a marine anchor chain.

In order to achieve the above object, the present application adopts the following technical scheme:

the installation method of the ship anchor chain is used for installing the anchor chain on a ship, the anchor chain consists of an anchor head and a plurality of sections of sub-anchor chains, anchor chain installation equipment is arranged on the ship and comprises an anchor discarding device, an anchor machine, an anchor gate and an anchor chain barrel, the anchor discarding device is installed on a bulkhead of an anchor chain cabin of the ship, the anchor machine and the anchor gate are both installed on a bow deck of the ship, and the anchor chain barrel is installed on a hull of the ship; the installation method of the ship anchor chain comprises the following steps:

step S100, connecting a plurality of sections of anchor chains to form a first section of anchor chain, hoisting the first section of anchor chain to a bow building deck, wherein the first section of anchor chain is provided with a first hoisting point and a second hoisting point, the length between the first hoisting point and the tail end of the first section of anchor chain is L1, the length between the second hoisting point and the head end of the first section of anchor chain is L2, L1 is larger than the maximum distance between the abandoned anchor and an anchor chain roller of the anchor machine, and L2 is larger than the maximum distance between the anchor chain barrel and an anchor gate roller of the anchor gate;

step 200, hoisting the first section of anchor chain at the first hoisting point by using a crane, and installing the tail end of the first section of anchor chain on the anchor chain roller;

step S300, releasing the clutch of the anchor chain roller, and utilizing the crane to adjust the height of the first lifting point downwards so that the tail end of the first section of anchor chain is rolled into the anchor chain cabin under the action of the gravity of the first section of anchor chain and the anchor chain roller until the tail end of the first section of anchor chain can be installed on the anchor discarding device;

step S400, starting the brake of the anchor chain roller, installing the tail end of the first section of anchor chain on the anchor discarding device, and then releasing the connection between the crane and the first lifting point;

s500, loosening the brake of the anchor chain roller, and starting the anchor machine to roll the first section of anchor chain into the anchor chain cabin until the residual length of the first section of anchor chain is L3, wherein L3 is larger than L2;

step S600, closing the anchor machine and starting the brake of the anchor chain roller;

step S700, hoisting the first section of anchor chain at the second hoisting point by using the crane, and hoisting the head end of the first section of anchor chain into the anchor gate roller;

step S800, the height of the second lifting point is adjusted downwards by using the crane until the head end of the first section of anchor chain enters the anchor chain barrel, and then the brake of the anchor brake roller is started to release the connection between the crane and the second lifting point;

step S900, loosening the brake of the anchor chain roller, loosening the brake of the anchor brake roller, and starting the anchor machine to place the first section of anchor chain on the ground;

and step S1000, starting the braking of the anchor chain roller and the braking of the anchor brake roller, and connecting the first section of anchor chain, the rest of sub anchor chains and the anchor heads to form an anchor chain.

As an alternative to the method for installing the ship anchor chain, in the step S200, before the crane lifts the first lifting point, the method further includes: and fixing the head end of the first section of anchor chain on the bow building deck by utilizing a steel wire rope.

As an alternative to the method of installing the ship anchor chain, in the step S700, the crane is used to unwind the wire rope between the head end of the first section of anchor chain and the bow deck before hoisting the first section of anchor chain at the second hoisting point.

As an alternative to the installation method of the ship anchor chain, in step 200, the crane lifts the first lifting point to a height less than L1.

As an alternative to the method for installing the ship anchor chain, in the step S400 and/or the step S600 and/or the step S1000, after starting the braking of the anchor chain roller, the method further includes: and fixing the first section of anchor chain on the anchor machine by using a steel wire rope.

As an alternative to the method for installing the ship anchor chain, in the step S400, before the connection between the crane and the first lifting point is released, the method further includes: and fixing the rotating wheel of the anchor discarding device by using a steel wire rope.

As an alternative scheme of the installation method of the ship anchor chain, the value range of the L1 is 5 m-8 m.

As an alternative scheme of the installation method of the ship anchor chain, the value range of the L2 is 5-8 m.

As an alternative to the method of installing a ship anchor chain, after step S1000, it further includes:

and step S1100, loosening the brake of the anchor chain roller and the brake of the anchor brake roller, and starting the anchor machine to roll the anchor chain into the anchor chain cabin until the anchor head and the anchor platform are attached in place.

As an alternative to the method for installing the ship anchor chain, after the step S1100, the method further includes:

and step 1200, starting the braking of the anchor chain roller and the braking of the anchor brake roller, and fixing the anchor chain on the anchor machine by using a steel wire rope.

The beneficial point of the application lies in:

the anchor chain installation method provided by the application comprises the following steps: connecting a plurality of sections of sub-anchor chains to form a first section of anchor chain, and hoisting the first section of anchor chain to a bow building deck; the tail end of the first section of anchor chain is arranged on an anchor chain roller by matching with a crane; the first section of anchor chain part of the crane is matched into the cabin, and the tail end of the first section of anchor chain can be arranged on the anchor discarding device; the first section of anchor chain is fixed with the anchor discarding device; the first section of the anchor chain is mostly put into the cabin; the head end of the first section of anchor chain enters an anchor chain barrel; the head end of the first section of anchor chain is lowered to the ground; the rest sub-anchor chains and the anchor heads are connected. According to the ship anchor chain installation method, through the mutual matching of the crane and the anchor machine, the unidirectional controllable operation steps are adopted to decompose stress among the anchor machine, the crane and the anchor chain, the stress is controlled one by one, multiple protection measures are adopted to form good safety control, the situations of multipoint operation and unbalanced multipoint stress are avoided, efficient and safe installation operation of the anchor chain is realized, and the construction quality and the construction safety are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following description will briefly explain the drawings needed in the descriptions of the embodiments of the present application, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the contents of the embodiments of the present application and these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic illustration I of a marine anchor chain installation apparatus provided in an embodiment of the present application;

fig. 2 is a schematic diagram ii of a ship anchor chain installation apparatus provided in an embodiment of the present application.

Reference numerals:

10. a bow deck; 20. an anchor chain cabin;

100. an anchor chain; 101. an anchor head;

200. discarding the anchor device;

300. an anchor machine; 301. an anchor chain roller;

400. an anchor gate roller;

500. a hawse pipe;

600. an anchor stand.

Detailed Description

Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings.

In this application, the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present application, the term "and/or" is an association relationship describing an association object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" in this application generally indicates that the front-rear association object is an "and/or" relationship.

The terms "connected," "coupled," and "mounted" are used herein to describe either a direct connection, a coupling, or an installation, or an indirect connection, a coupling, or an installation. By way of example, two parts or components are connected together without intermediate members, and by indirect connection is meant that the two parts or components are respectively connected to at least one intermediate member, through which the two parts or components are connected. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings, and may include electrical connections or couplings.

In this application, one of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "substantially," etc.) used in connection with quantities or conditions are intended to include the values and have the meanings indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a particular value, the tolerance associated with a particular value resulting from manufacture, assembly, use, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to the addition or subtraction of a percentage (e.g., 1%,5%,10% or more) of the indicated value. Numerical values, not employing relative terms, should also be construed as having specific values of tolerance. Further, "substantially" when referring to relative angular positional relationships (e.g., substantially parallel, substantially perpendicular) may refer to adding or subtracting a degree (e.g., 1 degree, 5 degrees, 10 degrees, or more) from the indicated angle.

In this application, one of ordinary skill in the art will understand that a function performed by a component may be performed by one component, multiple components, a part, or multiple parts. Also, the functions performed by the elements may be performed by one element, by an assembly, or by a combination of elements.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", and the like are described in terms of orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements. It should also be understood that the terms upper, lower, left, right, front, back, etc. are not only intended to represent positive orientations, but also to be construed as lateral orientations. For example, the lower side may include a right lower side, a left lower side, a right lower side, a front lower side, a rear lower side, and the like.

The anchor chain consists of an anchor head and a plurality of sections of sub-anchor chains and is used for connecting the anchor and the ship body to transfer the grabbing and holding force generated by the anchor, so that the action of external force on the ship is counteracted, and the ship can be safely moored in a designated water area. The anchor chain installation of the existing large-scale ship generally requires that the crane and the anchor machine work simultaneously, and because the stress dynamic changes of the crane and the anchor machine are complex, the strength is difficult to control, the situation that the crane and the anchor machine are simultaneously stressed and pulled mutually easily occurs, and higher danger exists.

As shown in fig. 1 to 2, the ship is equipped with a chain installation apparatus, wherein the chain installation apparatus includes a waste anchor 200, an anchor machine 300, an anchor gate, and a chain drum 500, the waste anchor 200 is installed on a bulkhead of a chain locker 20 of the ship, the anchor machine 300 and the anchor gate are both installed on a bow deck 10 of the ship, and the chain drum 500 is installed on a hull of the ship. When the anchor chain 100 is installed, the fixed end of the anchor chain is extended into the anchor chain cabin 20 and is installed on the anchor disposal device 200, and one end with the anchor head 101 is matched with the anchor machine 300 and the anchor brake in sequence and extended out of the hull of the ship through the anchor chain barrel 500.

The ship anchor chain installation method provided by the embodiment is used for installing the anchor chain 100 on a ship, and the ship anchor chain installation method prescribes preparation, personnel qualification, construction flow and safety risk control before the ship anchor machine 300 performs the anchor chain 100 installation work so as to improve construction quality and safety.

Preparation before construction: 1) And the crane equipment normally operates, and the steel wire rope selects a lifting load meeting the requirement of a section of the hoisting part of the anchor chain in a standard qualification period. 2) The wind power in the installation environment cannot be greater than level 6. 3) During the installation of the chain 100, all actions of the machine 300 are taken by the fitter operating the machine 300 and no other person has to operate. 4) The constructor must wear the labor protection articles correctly in the construction process. 5) The constructor carries out construction process and safe and smooth mating before starting work. 6) Before construction, various coordination communication instructions are unified, operation instructions are defined, and the fitter who operates the anchor machine 300 is used as an overall command in the operation process. 7) During operation, the crane and the anchor 300 are not allowed to be used simultaneously, and a certain margin is kept between the crane and the anchor 300. 8) The construction area is cleaned up before construction. 9) The construction area is pulled with the safety guard belt, and irrelevant personnel cannot enter the construction area.

Constructor qualification: and a lifting commander with professional qualification (lifting special operation certificate authentication) performs on-site command and is provided with an interphone. The fitter is primarily responsible for the operation of the field anchor chain 100. The operator who operates the anchor 300 is familiar with the equipment, and can be skilled in operating the equipment and equipped with an intercom.

The method for installing the anchor chain comprises the following steps:

step S100, connecting a plurality of sections of anchor chains to form a first section of anchor chain, and hoisting the first section of anchor chain to a bow building deck 10, wherein the first section of anchor chain is provided with a first hoisting point and a second hoisting point, the length between the first hoisting point and the tail end of the first section of anchor chain is L1, the length between the second hoisting point and the head end of the first section of anchor chain is L2, L1 is larger than the maximum distance between the abandoned anchor 200 and the anchor chain roller 301 of the anchor machine 300, and L2 is larger than the maximum distance between the anchor cylinder 500 and the anchor gate roller 400 of the anchor gate;

step S200, installing the tail end of the first section of anchor chain: lifting the first section of the anchor chain at a first lifting point by using a crane, and mounting the tail end of the first section of the anchor chain on an anchor chain roller 301;

step S300, the first section of the anchor chain is partially put into the anchor chain cabin 20: releasing the clutch of the anchor chain roller 301, and using the crane to adjust the height of the first lifting point downwards, so that the tail end of the first section of anchor chain is rolled into the anchor chain cabin 20 under the action of the gravity of the first section of anchor chain and the anchor chain roller 301 until the tail end of the first section of anchor chain can be mounted on the anchor discarding device 200;

step S400, fixing the first section anchor chain and the anchor discarding device 200: starting the braking of the anchor chain roller 301, installing the tail end of the first section of anchor chain on the anchor discarding device 200, and then releasing the connection between the crane and the first lifting point;

step S500, the majority of the first section of the anchor chain enters the anchor chain cabin 20: releasing the brake of the chain roller 301 and starting the anchor machine 300 to roll the first section of chain into the chain cabin 20 until the remaining length of the first section of chain is L3, wherein L3 is greater than L2;

step S600, closing the anchor machine 300 and starting the brake of the anchor chain roller 301;

step S700, the first section of anchor chain head end enters the anchor gate roller 400: lifting the first section of anchor chain at a second lifting point by using a crane, and lifting the head end of the first section of anchor chain into the anchor gate roller 400;

step S800, the first end of the first section of anchor chain enters the anchor chain barrel 500: the height of the second lifting point is adjusted downwards by using the crane until the head end of the first section of anchor chain enters the anchor chain barrel 500, and then the brake of the anchor brake roller 400 is started to release the connection between the crane and the second lifting point;

step S900, placing the ground at the head end of the first section of anchor chain: releasing the brake of the anchor chain roller 301, releasing the brake of the anchor brake roller 400, and starting the anchor machine 300 to place the first section of anchor chain on the ground;

step S1000, connecting the anchor chain 100: starting the braking of the anchor chain roller 301 and the braking of the anchor brake roller 400, and connecting the first section of anchor chain, the rest of sub-anchor chains and the anchor head 101 to form an anchor chain 100;

step S1100, the anchor chain 100 enters the anchor chain cabin 20: releasing the brake of the anchor chain roller 301 and the brake of the anchor brake roller 400, and starting the anchor machine 300 to wind the anchor chain 100 into the anchor chain cabin 20 until the anchor head 101 is attached to the anchor platform 600;

step S1200, safety insurance: starting the braking of the anchor chain roller 301 and the braking of the anchor brake roller 400, and fixing the anchor chain 100 on the anchor machine 300 by using a steel wire rope;

and step 1300, after the construction is finished, finishing on-site arrangement, and powering off the equipment.

According to the anchor chain installation method provided by the embodiment, through the mutual matching of the crane and the anchor machine 300, the unidirectional controllable operation steps are adopted to decompose stress among the anchor machine 300, the crane and the anchor chain 100, the stress is controlled one by one, multiple protection measures are adopted to form good safety control, the conditions of multipoint operation and unbalanced multipoint stress are avoided, efficient and safe installation operation of the anchor chain 100 is realized, and the construction quality and the construction safety are improved.

In step S100, 2 sections of sub-anchor chains are selected to be connected to form a first section of sub-anchor chain, the length of each section of sub-anchor chain is 27.5m, the selection of the length needs to ensure that the tail end of the first section of anchor chain can be connected with the anchor discarding device 200, and the head end of the first section of anchor chain can extend to the bottom surface of the ship, so that the first section of anchor chain and the rest of sub-anchor chains in the following step S1000 are conveniently connected. In other embodiments, in step S100, any number of sub-chains including 3, 4, 5, etc. may be selected to form the first section sub-chain according to the size of the ship, which is not limited herein.

In step S100, the distance between the first lifting point and the end of the first section of anchor chain is L1, and the value range of L1 is 5 m-8 m. The range of L1 is required to ensure that the end of the first section of the anchor chain can be connected to the anchor disposal device 200 during the down-height adjustment of the crane after the crane lifts the first lifting point. In this embodiment, the value of L1 is 6m, and in other embodiments, the value of L1 may be 5m, 5.5m, 6.5m, 7m, 7.5m, 8m, or the like, and specifically may be selected according to the size of the anchor chain roller 301 and the distance between the anchor chain roller 301 and the anchor disposal device 200, which is not limited herein.

In step S100, the distance between the second hoisting point and the head end of the first section of anchor chain is L2, and the value range of L2 is 5 m-8 m. The range of L2 is required to ensure that the head end of the first section of the anchor chain can enter the anchor chain barrel 500 under the condition of being matched with the anchor gate roller 400 in the process of adjusting the height of the crane downwards after the crane lifts the second lifting point. In this embodiment, the value of L2 is 6m, and in other embodiments, the value of L2 may be 5m, 5.5m, 6.5m, 7m, 7.5m, 8m, etc., and specifically may be selected according to the size of the anchor roller 400 and the distance between the anchor roller 400 and the hawse pipe 500, which is not limited herein.

In step S200, before the crane lifts the first lifting point, the method further includes: the first end of the first section of anchor chain is fixed on the bow building deck 10 by using a steel wire rope to serve as secondary safety, so that the first end of the first section of anchor chain is prevented from being lifted to swing greatly when the crane lifts the first section of anchor chain, and the operation safety is improved. Further, in the case where a wire rope is connected between the head end of the first section of the anchor chain and the bow deck 10, in step S700, the wire rope between the head end of the first section of the anchor chain and the bow deck 10 needs to be unwound before the first section of the anchor chain is lifted at the second lifting point by the crane.

In step 200, the height of the crane lifting the first lifting point is smaller than L1, so as to improve the assembly efficiency between the end of the first section of the anchor chain and the anchor chain roller 301, without multiple adjustments of the height of the crane lifting the first lifting point.

In step S400 and/or step S600 and/or step S1000, after starting the braking of the anchor chain roller 301, further comprises: the first section of anchor chain is fixed on the anchor machine 300 by using a steel wire rope to serve as secondary insurance, so that the construction safety is improved. Further, in the case that the wire rope is connected between the first section of the anchor chain and the anchor machine 300, in step S500, after the anchor chain roller 301 is released, the wire rope between the first section of the anchor chain and the anchor machine 300 needs to be released; in step S900, after releasing the brake of the chain wheel 301, the wire rope between the first section of chain and the anchor 300 needs to be released.

In step S400, before the connection between the crane and the first lifting point is released, the method further includes: the rotating wheel of the anchor disposal device 200 is fixed by a steel wire rope to serve as secondary insurance, so that the construction safety is improved. Further, in step S900, the wire rope for fixing the runner of the anchor dropper 200 needs to be released, so that the anchor dropper 200 can be conveniently matched with the anchor machine 300 and the anchor brake to put the first section of anchor chain on the ground.

According to the ship anchor chain installation method provided by the embodiment, through the mutual matching of the crane and the anchor machine 300, single controllable operation steps are adopted, and the efficient and safe installation operation of the anchor chain 100 is realized in a step-by-step, multi-measure and controllable mode, so that the construction quality and the construction safety are improved.

The foregoing has outlined and described the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the present application in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the present application.

Claims (10)

1. A method for installing a ship anchor chain, which is used for installing the anchor chain (100) on a ship, wherein the anchor chain (100) consists of an anchor head (101) and a plurality of sections of sub-anchor chains, the ship is provided with anchor chain installation equipment, the anchor chain installation equipment comprises an anchor discarding device (200), an anchor machine (300), an anchor gate and a anchor chain barrel (500), the anchor discarding device (200) is installed on a bulkhead of a hawser tank (20) of the ship, the anchor machine (300) and the anchor gate are both installed on a bow deck (10) of the ship, and the anchor chain barrel (500) is installed on a hull of the ship; the method for installing the ship anchor chain is characterized by comprising the following steps of:

step S100, connecting a plurality of sections of anchor chains to form a first section of anchor chain, hoisting the first section of anchor chain to a bow deck (10), wherein the first section of anchor chain is provided with a first hoisting point and a second hoisting point, the length between the first hoisting point and the tail end of the first section of anchor chain is L1, the length between the second hoisting point and the head end of the first section of anchor chain is L2, L1 is larger than the maximum distance between the abandoned anchor (200) and an anchor chain roller (301) of the anchor machine (300), and L2 is larger than the maximum distance between an anchor cylinder (500) and an anchor roller (400) of the anchor brake;

step 200, hoisting the first section of anchor chain at the first hoisting point by using a crane, and installing the tail end of the first section of anchor chain on the anchor chain roller (301);

step S300, releasing the clutch of the anchor chain roller (301), and utilizing the crane to adjust the height of the first lifting point downwards so that the tail end of the first section of anchor chain is rolled into the anchor chain cabin (20) under the action of the gravity of the tail end of the first section of anchor chain and the anchor chain roller (301) until the tail end of the first section of anchor chain can be installed on the anchor discarding device (200);

step S400, starting the brake of the anchor chain roller (301), installing the tail end of the first section of anchor chain on the anchor discarding device (200), and then releasing the connection between the crane and the first lifting point;

s500, loosening the brake of the anchor chain roller (301), and starting the anchor machine (300) to roll the first section of anchor chain into the anchor chain cabin (20) until the residual length of the first section of anchor chain is L3, wherein L3 is larger than L2;

step S600, closing the anchor machine (300) and starting the brake of the anchor chain roller (301);

step S700, lifting the first section of anchor chain at the second lifting point by using the crane, and lifting the head end of the first section of anchor chain into the anchor gate roller (400);

step S800, the crane is utilized to adjust the height of the second lifting point downwards until the head end of the first section of anchor chain enters the anchor chain barrel (500), and then the brake of the anchor brake roller (400) is started to release the connection between the crane and the second lifting point;

step S900, loosening the brake of the anchor chain roller (301), loosening the brake of the anchor brake roller (400), and starting the anchor machine (300) to put the first section of anchor chain on the ground;

and step S1000, starting the braking of the anchor chain roller (301) and the braking of the anchor brake roller (400), and connecting the first section of anchor chain, the rest of the sub-anchor chains and the anchor heads (101) to form an anchor chain (100).

2. The method of installing a ship anchor chain according to claim 1, characterized in that in said step S200, before said crane lifts said first lifting point, further comprising: and fixing the head end of the first section of anchor chain on the bow building deck (10) by utilizing a steel wire rope.

3. A method of installing a ship' S mooring line according to claim 2, characterized in that in said step S700 the crane is used to unwind the wire rope between the head end of the first length of mooring line and the bow deck (10) before lifting the first length of mooring line at the second lifting point.

4. The method of installing a marine anchor chain according to claim 1, wherein in step 200 the crane lifts the first lifting point to a height less than L1.

5. The method of installing a marine vessel chain according to claim 1, characterized in that in step S400 and/or step S600 and/or step S1000, after starting the braking of the chain wheel (301), further comprising: the first length of anchor chain is secured to the anchor machine (300) using a wire line.

6. The method of installing a marine vessel mooring line according to claim 1, wherein in step S400, prior to releasing the connection between the crane and the first lifting point, further comprises: and fixing the rotating wheel of the anchor discarding device (200) by using a steel wire rope.

7. The method of installing a marine anchor chain according to claim 1, wherein the value of L1 ranges from 5m to 8m.

8. The method of installing a marine anchor chain according to claim 1, wherein the value of L2 ranges from 5m to 8m.

9. The method of installing a marine vessel mooring line according to any of claims 1-8, further comprising, after step S1000:

step S1100, loosening the brake of the anchor chain roller (301) and the brake of the anchor brake roller (400), and starting the anchor machine (300) to roll the anchor chain (100) into the anchor chain cabin (20) until the anchor head (101) is attached to the anchor platform (600).

10. The method of installing a marine anchor chain according to claim 9, further comprising, after said step S1100:

and step 1200, starting the braking of the anchor chain roller (301) and the braking of the anchor gate roller (400), and fixing the anchor chain (100) on the anchor machine (300) by using a steel wire rope.