CN111674515A - Icebreaking type large-scale navigation mark ship - Google Patents
Icebreaking type large-scale navigation mark ship Download PDFInfo
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- CN111674515A CN111674515A CN202010630123.9A CN202010630123A CN111674515A CN 111674515 A CN111674515 A CN 111674515A CN 202010630123 A CN202010630123 A CN 202010630123A CN 111674515 A CN111674515 A CN 111674515A
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- breaking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/08—Arrangement of ship-based loading or unloading equipment for cargo or passengers of winches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/08—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor
- B63B35/12—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor having ice-cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
Abstract
The invention provides an ice-breaking large-scale navigation mark ship, which has continuous ice-breaking operation capability and is characterized by comprising a ship body adopting an ice-breaking ship body line type, wherein two propellers at the stern part of the ship body are driven by a full-electric drive system, the propellers adopt full-rotation fixed-pitch rudder propellers, and the full-rotation rudder propellers meet the B2-level ice region strengthening requirement. The ice-breaking large-scale navigation mark ship provided by the invention can navigate in offshore navigation areas, operate in coastal navigation areas, is mainly used for throwing, removing, checking, maintaining and the like of navigation aids such as large and medium-sized light buoys, articulated light piles and the like of port channels in northern sea areas in China, can be used for carrying out emergency layout, emergency maintenance and maintenance on navigation marks during ice conditions in the northern sea areas, and has the capability of continuously breaking ice under the condition of a certain ice layer thickness.
Description
Technical Field
The invention relates to a large-scale navigation mark ship, which is mainly used for laying, removing, checking and maintaining navigation aids of ports and channels in northern sea areas in China, has an ice breaking function under the condition of certain ice layer thickness in winter, and belongs to the technical field of ship equipment.
Background
At present, the domestic similar large-scale navigation mark laying engineering ships have the following current situations:
(1) lacking ice breaking function. The ice condition exists in northern sea areas every year in winter, the navigation mark suffers ice loss of different degrees due to the ice condition, the navigation mark cannot be used for maintenance operation on the damaged navigation mark when the ice condition occurs, the emergency response capability in the ice condition period is lacked, and the exertion of the navigation guarantee capability is severely restricted.
(2) The propulsion mode that the diesel engine drives the adjustable pitch propeller is generally adopted, and the propulsion mode is generally shown in the aspects of reasonability of power distribution of a ship power device, ship maneuvering and rotating performance, power positioning capacity and the like.
(3) The common deck crane is matched with the conventional winch for combined operation, the lifting capacity of the crane under a higher sea condition is greatly reduced, the automation level is lower, the mark sleeving and throwing modes are heavy and backward, the labor intensity of personnel is high, and the operation efficiency is lower.
Disclosure of Invention
The purpose of the invention is: the large-scale navigation mark laying engineering ship has the capability of continuously breaking ice under the condition of a certain ice layer thickness.
In order to achieve the aim, the technical scheme of the invention provides an ice-breaking large-scale navigation mark ship which has continuous ice-breaking operation capacity and is characterized by comprising a ship body adopting an ice-breaking ship body line type, wherein two propellers at the stern part of the ship body are driven by a full electric drive system, the propellers adopt full-rotation fixed-pitch rudder propellers, and the full-rotation rudder propellers meet the ice region reinforcement requirement of adapting to the northern sea area;
the bow line of the ship body consists of a forward-inclined stem line, a wedge-shaped ice-separating heel line which is in smooth connection with the ship body and a V-shaped cross section line; the midship transverse section of the ship body has a certain camber angle at the design waterline; ice guiding tunnel line types are arranged at the ship bottom positions between and behind two linear propellers at the stern part of the ship body, and a longitudinal section line type at the joint of the stern part of the ship body and a tail sealing plate of the ship body is designed into a smooth circular arc curve type;
a stern mooring area, a living building, a navigation mark operation deck area and a bow mooring area are sequentially arranged from the stern to the bow above a main deck of the ship body; the main machine places from the stern part to the bow part below the main deck of the ship body are a rudder cabin, a propulsion motor cabin, a cabin, an auxiliary equipment cabin, a navigation mark equipment cabin, a deck mechanical hydraulic pump station cabin and a side thruster cabin in sequence.
Preferably, the half inflow angle range of the bow linear design water line is 35-40 degrees; the bow area corresponding to the V-shaped cross section line is a bow icebreaking ship body in the form of an ice skate blade; the inclination angle of the forward-inclined stem line is 20-30 degrees; the wedge-shaped ice separating heel line is positioned near the junction of the stem of the ship body and the bottom base line.
Preferably, the height of the wedge-shaped ice separation heel line type is 1.0-1.5 m, and the front end profile is moderately inclined forwards.
Preferably, a certain camber angle is arranged on a transverse section of the midship at a design waterline, and the camber angle is 8-12 degrees; the included angle between the bottom of the cross section of the midship and the base plane of the ship body is 3-7 degrees.
Preferably, the width of the ice guiding tunnel line at the designed waterline is 3.0-4.0 m, and the water outlet angle of the middle longitudinal section line of the ship body at the designed waterline is 20-30 degrees.
Preferably, the navigation mark operation deck area is provided with navigation mark operation mechanical equipment, and the navigation mark operation mechanical equipment comprises a navigation mark crane, a hydraulic anchor chain winch, a traction winch, a lifting guide chain roller device, a chain abandoning device and the like.
Preferably, the beacon crane is of an offshore crane type equipped with an intelligent collision avoidance system.
Preferably, the hydraulic anchor chain winch is driven by hydraulic pressure, has the functions of automatic chain arrangement and anchor chain storage, realizes stepless speed regulation through an electro-hydraulic proportional reversing valve, and realizes the arrangement of the anchor chains by means of automatic synchronization of the push-pull guide wheel displacement of the chain arrangement device and the rotating speed of the roller.
Preferably, a wooden plank is laid on the deck of the beacon operation deck area, embedded type eye rings with a certain density are arranged, an embedded type sealed hatch cover is adopted to enable the hatch cover to be flush with the operation surface of the main deck, the beacon crane and the hydraulic anchor chain winch are arranged at the head of the operation deck, and the beacon crane is placed on a shelf of a bow deck.
Preferably, the full electric drive system comprises a main power station, the main power station comprises 3-4 main diesel generator sets capable of running in parallel, and the main diesel generator sets directly supply power to a main distribution board, provide electric power for the propeller and meet the power consumption requirement of full ship equipment;
the all-electric drive system also comprises 1 mooring generator set, the requirement of all-ship power utilization is met during mooring, and any 1 main diesel generator set and the mooring generator set can carry out uninterrupted load transfer.
The ice breaking type large-scale navigation mark ship provided by the invention has the advantages that the ship length is 70-80 m, the model depth is 6.0-6.5 m, the model width of a designed draught position is 13.5-14.5 m, the water displacement is 2000-3000 tons, the ship can navigate in an offshore navigation area, the ship works in a coastal navigation area, the ship is mainly used for throwing, removing, checking, maintaining and the like of navigation aids such as large and medium-sized light buoys, articulated light piles and the like of port channels in northern sea areas in China, can be used for carrying out emergency laying, rush repair and maintenance on the navigation marks in the ice condition period of the northern sea areas, and has the capability of continuously breaking ice under the condition of a certain ice layer thickness. Compared with the prior art, the invention has the following positive effects:
(1) the ice breaking type ship body line type is adopted, so that the ship has continuous ice breaking operation capacity in the ice condition period in winter in northern sea areas in China, the navigation mark operation engineering requirements in the non-ice condition period in northern sea areas can be met, and the vacancy of navigation guarantee capacity in the ice condition period in northern sea areas is made up.
(2) The full-electric driving type is adopted, the propulsion motor drives the full-rotation fixed pitch rudder propeller, and compared with a driving mode that the traditional large-scale navigation mark ship diesel engine directly drives the adjustable pitch propeller, the power distribution of the power device can be more flexibly carried out under different environmental conditions, different operation working conditions and different index ranges, the operation performance and the power positioning capability are stronger, and the operation economy is better.
(3) Adopt hydraulic anchor chain winch cooperation fairway buoy hoist combined operation, hydraulic anchor chain winch is used for hank anchor chain and heavy stone to have the function of automatic chain arrangement and storing the anchor chain, do not need the fairway buoy operation personnel to arrange the chain through modes such as artifical chain arrangement, its degree of automation is also higher than the hydraulic winch that current similar boats and ships generally adopted, has not only alleviateed operating personnel's intensity of labour by a wide margin, has still greatly reduced the risk that causes personnel's injury because of the wire rope fracture.
(4) The navigation mark crane adopts an offshore crane, compared with a common crane adopted by a traditional navigation mark ship, the navigation mark crane has no obvious reduction in lifting capacity under a higher sea condition, is more suitable for coastal navigation mark operation under a higher sea condition, is provided with an intelligent anti-collision system, prevents a lifting arm from colliding with a stem or other high-rise objects during misoperation, improves the operation safety and has higher automation level.
(5) The operation deck main equipment department is reasonable, the wood planking is laid on the operation deck, the embedded eye rings with a certain density are arranged, the arrangement and the binding of navigation aids such as light buoys and articulated light piles are facilitated, the embedded type outfitting parts such as a sealed cabin cover are adopted, the cabin cover is flush with the operation surface of the main deck, the crane is arranged at the head of the operation deck, the crane can be placed on a shelf of a bow building deck, the space of the operation deck is not occupied, the space for storing navigation marks and navigation mark equipment on the operation deck can be greatly increased, and the utilization rate of the operation deck is improved.
Drawings
FIG. 1 is a front view of the general arrangement of a large scale ice-breaking vessel of the present invention;
FIG. 2 is a line type longitudinal section of the bow of the ice-breaking large-scale navigation mark ship;
FIG. 3 is a top view of the bow line of the ice-breaking large-sized navigation mark ship;
FIG. 4 is a cross sectional view of the bow line of the ice-breaking large-sized navigation mark vessel;
FIG. 5 is a cross sectional view of the stern line of the ice-breaking large-sized navigation mark ship;
FIG. 6 is a longitudinal section line diagram of the stern part of the ice-breaking large-scale navigation mark ship;
FIG. 7 is a schematic layout view of the beacon operating machinery of the ice-breaking large-scale beacon vessel of the present invention;
fig. 8 is a schematic layout view of the engine room, the propulsion motor room and the rudder room of the ice-breaking large-sized navigation mark ship of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Fig. 1 is a general layout front view of a specific embodiment of the ice-breaking large-scale navigation mark ship of the invention, a stern mooring area 1, a living building 2, a navigation mark operation deck area 3 and a bow mooring area 4 are sequentially arranged from the stern to the bow above a main deck, and a rudder cabin 5, a propulsion motor cabin 6, a cabin 7, an auxiliary equipment cabin 8, a navigation mark equipment cabin 9, a deck mechanical hydraulic pump station cabin 10 and a side thruster cabin 11 are sequentially arranged from the stern to the bow below the main deck.
The bow line of the ice-breaking large-scale navigation mark ship mainly comprises a forward-inclined stem 12, a wedge-shaped ice-separating heel 13 in smooth connection with a ship body and a V-shaped cross section 14, wherein the bow line is bilaterally symmetrical relative to a longitudinal section in the ship body, and is shown in figures 2 and 3.
The ice breaking body at the bow part of the ice breaking type large-scale navigation mark ship adopts an ice skate form, a forward-inclined stem 12 is required to bear the collision between a ship body and ice, a smaller stem inclination angle can generate larger vertical downward ice breaking force, and a stem inclination angle a is taken to be 20-30 degrees as shown in figure 2; the wedge-shaped ice separating heel 13 is arranged at the bottom end of the bow part, the height h is 1.0-1.5 m, the wedge-shaped ice separating heel 13 is in smooth connection with the ship body and is used for discharging broken ice blocks generated after ice breaking to two sides, the broken ice blocks are prevented from moving to the rear of the ship body and entering a propeller working area, and the profile of the front end of the ice separating heel is properly inclined forwards to reduce ice breaking resistance, as shown in fig. 2; meanwhile, in order to improve the ice breaking capacity, the half inflow angle b of the bow linear design waterline is 35-40 degrees as shown in fig. 3.
In order to reduce the friction resistance caused when a midship body passes through a channel for crushing ice on a bow and ensure that the steering resistance in an ice area is smaller during ice crushing, a cross section of the midship is provided with a certain camber angle c at a design waterline, and for the beacon vessel, the camber angle is not too large, otherwise, the outboard span of the beacon crane on a working deck is influenced, and the camber angle c is 8-12 degrees. In addition, as the square coefficient of the ship is smaller, in order to make the line shape smoother along the ship length direction, the diamond coefficient is properly increased, the cross section area is reduced, and the included angle d between the bottom of the cross section and the base plane is about 3-7 degrees, as shown in fig. 4.
Since the icebreaking ship needs to be able to back navigate in the broken ice passage, and the tail propeller needs to be prevented from being damaged by ice pressure, ice guiding tunnels 15 are arranged at the ship bottom positions between the two main propellers and behind the two main propellers, and the width L of the ice guiding tunnel at the waterline is designed to be 3.0-4.0 m, as shown in FIG. 5. Meanwhile, in order to facilitate tail ice guiding, a longitudinal section line at the joint of the stern part and the tail sealing plate is designed into a smooth arc curve form, and a water outlet angle e of the longitudinal section line in the ship body at a designed waterline is 20-30 degrees as shown in fig. 6.
The navigation mark operation deck area 3 is provided with main navigation mark operation mechanical equipment, which comprises: a beacon crane 301, a hydraulic chain winch 302, a traction winch 303, a lifting chain guide roller device 304, a chain abandoning device 305 and the like, as shown in fig. 7.
The navigation mark operation deck area 3 is provided with 1 navigation mark crane 301 in front, which is mainly used for the lifting operation of buoys, sinking stones, anchor chains, articulated light marks and the like, the range of the suspension arm can cover the operation area of navigation mark equipment, and the model of the offshore crane is adopted, so that compared with the common crane adopted by the traditional navigation mark ship, the crane has no obvious reduction on the lifting capacity under higher sea conditions, is more suitable for the coastal navigation mark operation under higher sea conditions, is provided with an intelligent anti-collision system, prevents the collision of the suspension arm with a fore mast or other high-rise objects during misoperation, improves the operation safety, and has higher automation level.
The anchor chain winch is arranged in a ship at the 3-head part of a navigation mark operation deck area and is driven by hydraulic pressure, the anchor chain winch is used for winching the anchor chain and sinking stones, the anchor chain winch has the functions of automatically arranging the chain and storing the anchor chain, stepless speed regulation is realized through an electro-hydraulic proportional reversing valve, the arrangement of the anchor chain is realized by automatically synchronizing the shifting distance of a push-pull guide wheel of a chain arranging device and the rotating speed of a roller, the automation degree is higher, the labor intensity of operators can be greatly reduced, and the risk of personnel injury caused by the breakage of a steel wire rope is also greatly reduced.
Four corners of the navigation mark operation deck area 3 are respectively provided with a traction winch 303 which is driven by hydraulic pressure, and in order to meet the deflection angle of a working rope of the winch, the rope passes through a guide swinging pulley arranged on a bulkhead and then pulls the buoy to move at any position of the deck.
The lifting chain guide roller 304 device is arranged at two side sides of the 3 front part of a navigation mark operation deck area and mainly used for winching and collecting an anchor chain for guiding and stopping the chain.
The chain discarding device 305 is provided with 2 stations, is arranged at two side sides of the middle part of the navigation mark operation deck area 3 and is mainly used for throwing out sinking stones and anchor chains quickly and safely during the time distribution.
The operation deck main equipment department is reasonable, the operation deck is paved with wood planking, embedded eye rings 306 with a certain density are arranged, arrangement and binding of navigation aids such as light buoys and articulated light piles are facilitated, embedded type fitting-out parts such as sealed hatches are adopted, the hatches are flush with the operation surface of the main deck, a beacon crane is arranged at the head of the operation deck, the crane can be placed on a shelf 401 of the bow deck, the space of the bow deck is fully utilized, the crane does not occupy the space of the operation deck, accordingly, the space for storing beacon operation and beacon equipment of the operation deck can be greatly increased, and the utilization rate of the operation deck is improved.
The main power station of the ice-breaking large-scale navigation mark ship full electric drive system is composed of 3-4 main diesel generator sets 701 in an engine room 7, the main generators can run in parallel, power is directly supplied to a main distribution board, power is provided for main propulsion, the power consumption requirement of whole ship equipment is met, and any 1 main generator can perform uninterrupted load transfer with a parking generator 702; two further transformers 703 are arranged aft of the nacelle 7 as propulsion transformers for the electric propulsion system, as shown in fig. 8. The ice breaking type large-scale navigation mark ship adopts a full electric drive type, has low fuel consumption rate, can more flexibly distribute power of a power device in different environmental conditions, different operation working conditions and index ranges compared with the navigation mark ship of the same type of the conventional drive type when operating under the same working condition, has stronger operation performance and power positioning capability and better operation economy.
The propulsion motor cabin 6 of the ice-breaking large-scale navigation mark ship is provided with a propulsion motor 601 and a propulsion frequency converter 602 of a main propulsion device, as shown in fig. 8. The full-rotation rudder propeller 501 with fixed pitch is driven by 2 propelling motors, and the full-rotation rudder propeller 501 meets the ice region strengthening requirement of the northern sea region.
In conclusion, the ice-breaking type large-scale navigation mark ship has the advantages that the ice-breaking type ship body line type is adopted, so that the ship has continuous ice-breaking operation capacity in the ice condition period in winter in the northern sea area of China, the navigation mark operation engineering requirements in the non-ice condition period in the northern sea area can be met, and the vacancy of the navigation guarantee capacity in the ice condition period in the northern sea area is made up; the power distribution of the power device can be more flexibly carried out by adopting a full electric driving type, the operation performance and the power positioning capability are stronger, and the operation economy is better; advanced and reliable navigation mark operation mechanical equipment is configured, equipment arrangement is reasonable, the effective utilization rate of an operation deck space is high, the automation degree is high, the operation efficiency and the operation safety can be effectively improved, and the labor intensity of operators is greatly reduced. The invention effectively overcomes various defects in the prior art, and has good market popularization prospect and industrial utilization value.
Claims (10)
1. An icebreaking type large-scale navigation mark ship has continuous icebreaking operation capacity and is characterized by comprising a ship body adopting an icebreaking type ship body line type, wherein a full electric drive system drives two propellers at the stern part of the ship body, the propellers adopt full-rotation fixed-pitch rudder propellers, and the full-rotation rudder propellers meet the reinforcing requirement of a B2-level ice area;
the bow line of the ship body consists of a forward-inclined stem line, a wedge-shaped ice-separating heel line which is in smooth connection with the ship body and a V-shaped cross section line; the midship transverse section of the ship body has a certain camber angle at the design waterline; ice guiding tunnel line types are arranged at the ship bottom positions between and behind two linear propellers at the stern part of the ship body, and a longitudinal section line type at the joint of the stern part of the ship body and a tail sealing plate of the ship body is designed into a smooth circular arc curve type;
a stern mooring area, a living building, a navigation mark operation deck area and a bow mooring area are sequentially arranged from the stern to the bow above a main deck of the ship body; the main machine places from the stern part to the bow part below the main deck of the ship body are a rudder cabin, a propulsion motor cabin, a cabin, an auxiliary equipment cabin, a navigation mark equipment cabin, a deck mechanical hydraulic pump station cabin and a side thruster cabin in sequence.
2. The ice-breaking large-sized navigation mark ship according to claim 1, wherein the half inflow angle range of the bow linear design water line is 35-40 degrees; the bow area corresponding to the V-shaped cross section line is a bow icebreaking ship body in the form of an ice skate blade; the inclination angle of the forward-inclined stem line is 20-30 degrees; the wedge-shaped ice separating heel line is positioned near the junction of the stem of the ship body and the bottom base line.
3. A large scale ice breaking type navigation mark ship according to claim 1, characterized in that the height of the wedge-shaped ice separating heel line type is 1.0 m to 1.5 m, and the front end profile is moderately inclined forward.
4. The ice-breaking large-scale beacon vessel as claimed in claim 1, wherein the midship cross section has a camber angle at the design waterline of 8-12 °; the included angle between the bottom of the cross section of the midship and the base plane of the ship body is 3-7 degrees.
5. A large scale ice breaking type navigation mark ship as claimed in claim 1, wherein the width of the ice guiding tunnel line at the design waterline is 3.0 m-4.0 m, and the water outlet angle of the middle longitudinal line of the hull at the design waterline is 20-30 °.
6. The large scale ice-breaking navigation mark ship according to claim 1, wherein the navigation mark operation deck area is provided with navigation mark operation mechanical equipment, and the navigation mark operation mechanical equipment comprises a navigation mark crane, a hydraulic anchor chain winch, a traction winch, a lifting guide chain roller device and a chain abandoning device.
7. A large scale vessel as claimed in claim 6, wherein said beacon crane is of the offshore crane type equipped with an intelligent collision avoidance system.
8. A large scale icebreaking type navigation mark ship according to claim 6, characterized in that the hydraulic anchor chain winch is driven by hydraulic pressure and has the functions of automatic chain arrangement and anchor chain storage, stepless speed regulation is realized by an electro-hydraulic proportional reversing valve, and the arrangement of the anchor chain is realized by the automatic synchronization of the chain arrangement device push-pull guide wheel displacement and the roller rotating speed.
9. A large scale vessel of the ice breaking type as claimed in claim 6, wherein the deck of said buoy working deck area is laid with wood planking and embedded eyelets are provided in a considerable density, embedded sealed hatches are used to level the hatches with the main deck working plane, said buoy cranes and said hydraulic chain winches are provided at the head of the working deck, said buoy cranes rest on shelves on the deck of the forebuilding.
10. The large ice-breaking type navigation mark ship according to claim 1, wherein the main power station of the full electric drive system is 3-4 main diesel generator sets capable of running in parallel, and the main diesel generator sets directly supply power to a main distribution board to provide power for the propeller and meet the power consumption requirement of the full ship equipment; the all-electric drive system also comprises 1 mooring generator set, the requirement of all-ship power utilization is met during mooring, and any 1 main diesel generator set and the mooring generator set can carry out uninterrupted load transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630123.9A CN111674515A (en) | 2020-07-03 | 2020-07-03 | Icebreaking type large-scale navigation mark ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630123.9A CN111674515A (en) | 2020-07-03 | 2020-07-03 | Icebreaking type large-scale navigation mark ship |
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| CN111674515A true CN111674515A (en) | 2020-09-18 |
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| CN202010630123.9A Pending CN111674515A (en) | 2020-07-03 | 2020-07-03 | Icebreaking type large-scale navigation mark ship |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793722A (en) * | 2021-03-12 | 2021-05-14 | 中国船舶工业集团公司第七0八研究所 | Polar region scientific investigation ship type capable of bidirectionally breaking ice |
| CN113386899A (en) * | 2021-07-13 | 2021-09-14 | 中国舰船研究设计中心 | Double-bow anti-drag ship model suitable for long-term tail single-point mooring work and design method |
-
2020
- 2020-07-03 CN CN202010630123.9A patent/CN111674515A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793722A (en) * | 2021-03-12 | 2021-05-14 | 中国船舶工业集团公司第七0八研究所 | Polar region scientific investigation ship type capable of bidirectionally breaking ice |
| CN113386899A (en) * | 2021-07-13 | 2021-09-14 | 中国舰船研究设计中心 | Double-bow anti-drag ship model suitable for long-term tail single-point mooring work and design method |
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