CN114771740B - Marine liquefied gas fuel tank and ship - Google Patents
Marine liquefied gas fuel tank and ship Download PDFInfo
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- CN114771740B CN114771740B CN202210571201.1A CN202210571201A CN114771740B CN 114771740 B CN114771740 B CN 114771740B CN 202210571201 A CN202210571201 A CN 202210571201A CN 114771740 B CN114771740 B CN 114771740B
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- liquefied gas
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- gas fuel
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- tank
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/28—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for deck loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a liquefied gas fuel tank for a ship and the ship, which at least comprise a tank body, an air chamber and a liquid accumulation well which are connected in parallel, watertight bulkheads are arranged between adjacent tank bodies and are not communicated with each other, and a valve which is matched to keep closed is matched. The gas fuel is continuously consumed, watertight bulkheads are arranged, free liquid levels of liquefied gases with different liquid levels are reduced, sloshing load in the cabins is reduced, and the safety of the ship structure is improved; through the setting of gaseous phase communicating pipe and liquid phase communicating pipe, set up one the air chamber with one the hydrops well can, reduce liquid cargo pump, liquid cargo equipment and pipeline quantity, practice thrift the cost. The marine liquefied gas fuel tank is arranged along the width direction of the ship and can protrude out of the deck, so that the center of gravity of the whole ship is reduced, the space utilization rate is improved, the volume of the marine liquefied gas fuel is increased, and the voyage of the ship is increased.
Description
Technical Field
The invention relates to a liquefied gas fuel tank structural design, in particular to a marine liquefied gas fuel tank structural design.
Background
With the increasing approaching of the peak of carbon reaching 2030 and the carbon neutralization period of 2060, the reduction of carbon dioxide emission as much as possible is required in the ship design and operation process, wherein the adoption of liquefied gas fuel such as methane, ethane, ammonia, hydrogen and the like is an effective means for reducing carbon emission.
Storage tanks for conventional liquefied gas fuel on board ships are often arranged in open areas above deck and take the shape of cylindrical tanks. However, for fuels with low energy density such as hydrogen, ammonia and the like, a very large fuel tank needs to be arranged above a deck, so that the whole ship has very high weight center and poor stability. However, if the ship is arranged below the deck, the length of the ship left for loading is limited because the ship is arranged below the deck as much as possible, and under the condition that the ship is limited by the ship's length, the space for arranging the ship is a narrow flat ship arrangement area with larger height and width and smaller length. The space utilization rate of the conventional cylindrical tank or double-lug liquid tank arrangement scheme is low.
Currently, three-ear parallel liquid tank arrangement is proposed in the industry, such as a longitudinal arrangement scheme disclosed in patent 201510846006.5, but the longitudinal arrangement scheme disclosed in patent 201510846006.5 is only suitable for a cargo loading arrangement scheme with large bilge, the liquid tank diameter is close to the ship type depth, and the space below a deck is excessively occupied, so that the liquid tank arrangement is not suitable for fuel tank arrangement requirements.
Therefore, how to design a novel gas fuel tank structure can more reasonably utilize the narrow and flat ship arrangement space, and simultaneously improve the safety of the ship structure and the stability, and is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a liquefied gas fuel tank for a ship and a ship for solving the problems of low space utilization and safe ship structure and stability in the fuel tank arrangement scheme in the prior art.
To achieve the above and other related objects, the present invention provides a marine liquefied gas fuel tank including at least:
the parallel tank body comprises a middle tank body and side tank bodies positioned at two sides of the middle tank body, longitudinal bulkheads are arranged between adjacent tank bodies and are not communicated with each other, and the extending direction of the longitudinal bulkheads is perpendicular to the ship width direction;
the air chamber is arranged at the top of the middle tank body and is connected with the top of the side tank body through a gas phase communicating pipe;
the hydrops well, the hydrops well set up in the bottom of the intermediate tank body, with the bottom of the side tank body links to each other through liquid phase communicating pipe, and each the side tank body with correspond between the intermediate tank body all be provided with the valve on the liquid phase communicating pipe.
Preferably, the longitudinal bulkhead is a watertight bulkhead.
Preferably, the valve is a remote control valve, and the opening or closing state of the valve is controlled by a liquid cargo control system.
Preferably, the tank diameters of the side tank bodies at the two sides are the same, and the diameter of the side tank body is smaller than or equal to the diameter of the middle tank body.
Preferably, the height of the middle tank body is greater than that of the side tank body, and the bottom of the middle tank body is lower than that of the side tank body.
Preferably, the marine liquefied gas fuel tank is a semi-cooled semi-pressure marine liquefied gas fuel tank, and the shape of the seal head comprises one of a sphere, a dish shape and an ellipse.
Preferably, a heat insulation layer is arranged outside the parallel tank body, and a structure reinforcing ring is arranged in the height direction outside the parallel tank body.
In addition, the invention also provides a ship, wherein the ship is provided with the liquefied gas fuel tank for the ship along the ship width direction.
Preferably, the marine liquefied gas fuel tanks are symmetrically arranged on the ship left and right, the shortest transverse distance between the longitudinal bulkhead of the marine liquefied gas fuel tank and the ship outer shell is greater than 1/5 or 11.5 meters of the ship width, the shortest distance between the bottom of the marine liquefied gas fuel tank and the ship outer shell is greater than 1/15 or 2 meters of the ship width, and the shortest distance between the bottom of the marine liquefied gas fuel tank and the ship outer shell is smaller.
Preferably, the marine liquefied gas fuel tank is mounted in a saddle, the saddle is arranged along a ship width, the saddle is provided corresponding to the marine liquefied gas fuel tank, and a lower tank of the saddle serves as a ballast tank.
As described above, the marine liquefied gas fuel tank and the marine vessel of the present invention have the following advantageous effects: the marine liquefied gas fuel tank at least comprises a parallel tank body, a gas chamber and a hydrops well, wherein watertight bulkheads are arranged between adjacent tank bodies of the parallel tank body and are not communicated with each other, and the valves are matched to be kept closed. In addition, the gas fuel is continuously consumed in the whole sailing process, the liquid level is continuously changed, watertight bulkheads are arranged, the free liquid level of liquefied gas at different liquid level heights is reduced, the sloshing load in the bulkheads is reduced, and the safety of the ship structure is improved; through the arrangement that the bottom of the middle tank body is lower than the bottoms of the side tank bodies at the two sides and the height limitation of the tank body bottom from the outer bottom shell of the ship, the valve which is kept closed is matched, so that when the bottom of the ship is damaged, the maximum probability is ensured that only the middle tank body is damaged, the bottom of the side tank bodies at the two sides is not damaged, the loss of liquefied gas is reduced, meanwhile, the damage water inflow is reduced, and the stability and the safety of the ship are improved; through the arrangement of the gas-phase communicating pipe and the liquid-phase communicating pipe, one gas chamber and one effusion well are configured, and only one set of liquid cargo pump, one set of gas communicating pipeline, a control valve body, liquid cargo equipment and the like are correspondingly required to be configured, so that the number of liquid cargo pumps is reduced, the number of liquid cargo equipment and pipelines is reduced, and the cost is saved.
Further, the marine liquefied gas fuel tank is arranged in the ship along the ship width direction and can protrude out of the deck, so that the structural space below the deck is utilized to the maximum extent, the space utilization rate is improved, the volume of the marine liquefied gas fuel is improved, and the ship voyage is increased.
Drawings
Fig. 1 is a schematic structural view of a marine liquefied gas fuel tank and a fixing device thereof according to an embodiment of the present invention.
Fig. 2 is a schematic side view showing a configuration of a ship provided with a liquefied gas fuel tank for a ship according to an embodiment of the present invention.
Fig. 3 is a top view of fig. 2.
Description of element reference numerals
100. Liquefied gas fuel tank for ship
110. Air chamber
120. Gas phase communicating pipe
130. Watertight bulkhead
140. Effusion well
150. Liquid phase communicating pipe
160. Remote control valve
200. Saddle seat
210. Ballast tank
300. Cargo hold
400. Deck plate
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
As described in detail in the embodiments of the present invention, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of explanation, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
For ease of description, spatially relative terms such as "under", "below", "beneath", "above", "upper" and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. Furthermore, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or one or more intervening layers may also be present.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be changed at will, and the layout of the components may be more complex.
As shown in fig. 1 to 2, the marine liquefied gas fuel tank 100 includes at least:
the parallel tank body comprises a middle tank body and side tank bodies positioned at two sides of the middle tank body, longitudinal bulkheads are arranged between adjacent tank bodies and are not communicated with each other, and the extending direction of the longitudinal bulkheads is perpendicular to the ship width direction;
the air chamber 110 is arranged at the top of the middle tank body, and is connected with the top of the side tank body through a gas phase communicating pipe 120;
the effusion well 140, the effusion well 140 set up in the bottom of the intermediate tank body, with the bottom of the side tank body links to each other through liquid phase communicating pipe 150, and each the side tank body with correspond between the intermediate tank body liquid phase communicating pipe 150 is last all to be provided with the valve.
Specifically, as shown in fig. 1, in this embodiment, the parallel tank body includes a middle tank body and side tank bodies located at two sides of the middle tank body, so that the parallel tank body is in a flat high form, and is suitable for an arrangement area with limited length, large height and large width of a fuel tank reserved on a ship. Longitudinal bulkheads are arranged between adjacent tank bodies and are not communicated with each other, and the extending direction of the longitudinal bulkheads is perpendicular to the ship width direction, so that the free liquid level of liquefied gas is reduced. The parallel tank body is provided with the air chamber 110 at the highest point of the top of the middle tank body, and is connected with the tops of the side tank bodies at two sides through the gas phase communicating pipe 120, and the vaporized gas in the parallel tank body can be pumped out by using a set of gas communicating pipeline, a control valve body and liquid cargo equipment and transmitted to a ship engine, so that the number of gas communicating pipelines, liquid cargo equipment and the like is reduced, and the cost is saved; the bottom lowest point of the middle tank body is provided with the effusion well 140, the liquid phase communicating pipe 150 is connected with the bottoms of the side tank bodies on two sides, valves are arranged on the liquid phase communicating pipe 150, a set of liquid cargo pump can meet the requirement of liquefied gas connection and connection of the parallel tank bodies, the liquefied gas connection is realized by the liquid cargo pump, the parallel tank bodies can be filled with the liquefied gas, the connection refers to the fact that when the combustion requirement of a ship engine cannot be met by top gas, the liquefied gas is discharged by the liquid cargo pump, the ship engine is supplied together after vaporization, the number of the liquid cargo pumps is reduced, and cost is saved.
By way of example, the longitudinal bulkhead is a watertight bulkhead 130.
Specifically, as shown in fig. 1, in this embodiment, the longitudinal bulkhead is a watertight bulkhead 130, and the watertight bulkhead 130 is impermeable to water under a certain water pressure, when the ship side is damaged to cause the damage of a single tank body to water, because the watertight bulkhead 130 is matched with the closed valve, other tank bodies of the parallel tank bodies cannot permeate water to water, so that the water inflow during the damage of the ship side is reduced, the stability and safety of the ship are improved, the loss of liquefied gas is reduced, and the normal running of sailing is ensured. Because gaseous fuel is the continuous consumption in whole navigation process, liquid level height constantly changes, needs to consider the free liquid level in the parallel tank body when different liquid level heights, watertight bulkhead 130's setting has reduced the free liquid level of liquefied gas when different liquid level heights, reduces the cabin and rocks the load, improves boats and ships structure security.
By way of example, the valve is a remote control valve 160, which is controlled in its open or closed state by a liquid cargo control system.
Specifically, the liquid cargo control system is a management system commonly used on ships at present, can detect and control the liquid level, the temperature and the like of a tank body, can carry out remote control on the opening and the opening of a valve of a liquid cargo pipe system, and can monitor a liquid cargo pump. The valve is a remote control valve 160, the open or close state of the valve is controlled by a liquid cargo control system, the remote control valve 160 is kept closed in a voyage state, and meanwhile, when a ship loses power, the remote control valve 160 is kept in a close state, so that the mutual influence among different tanks during the tank breakage is avoided, the loss of liquefied gas is reduced, and the stability and safety of the ship are maintained.
As an example, the tank diameters of the side tanks on both sides are the same, and the diameter of the side tank is smaller than or equal to the diameter of the middle tank.
Specifically, the tank diameters of the side tank bodies on two sides are the same, and the diameter of the side tank bodies is smaller than or equal to the diameter of the middle tank body, so that the parallel tank bodies are bilaterally symmetrical and the gravity center is located in the middle tank body, the stability and the anti-shaking performance of the parallel tank bodies are improved, and the structural safety of a ship is improved.
As an example, the height of the intermediate tank is greater than the height of the side tank and the bottom of the intermediate tank is lower than the bottom of the side tank.
Specifically, as shown in fig. 1, in this embodiment, the height of the middle tank body is greater than the height of the side tank body and the bottom of the middle tank body is lower than the bottom of the side tank body, so that on one hand, the volume of liquefied gas in the middle tank body is increased to increase the weight of the middle tank body so as to further improve the stability of the marine liquefied gas fuel tank, on the other hand, when the valve is closed in a matched manner, the maximum probability is only when the bottom of a ship is damaged, the middle tank body is damaged, the bottom of the side tank body is not damaged, the damage water inflow is reduced, the stability and safety of the ship are improved, the loss of liquefied gas is also reduced, the environmental pollution to a navigation channel is reduced, and the normal running of the navigation is ensured.
As an example, the marine liquefied gas fuel tank 100 is a semi-cold semi-pressure marine liquefied gas fuel tank, and the shape of the head includes one of a sphere, a dish, and an ellipse.
Specifically, the semi-cooled and semi-pressurized marine liquefied gas fuel tank is widely used because of its strong pressure-bearing capacity, easy manufacturing and high economical efficiency, and is characterized in that liquefied gas is stored in a pressure vessel, and the temperature is controlled to be within a certain temperature range lower than normal temperature and higher than boiling point to maintain a liquefied state. The marine liquefied gas fuel tank 100 adopts a semi-cold and semi-pressure type liquefied gas fuel tank, the temperature and pressure of the marine liquefied gas fuel tank 100 are adjusted according to the characteristics of liquefied gas, the lowest boiling point in the liquefied gas is generally selected as the design temperature, and the shape of the seal head of the marine liquefied gas fuel 100 comprises one of a sphere, a dish shape and an ellipse shape.
As an example, the parallel tank body is provided with a heat insulating layer outside, and a structural reinforcing ring is provided in the height direction outside the parallel tank body.
Specifically, since the marine liquefied gas fuel tank 100 adopts a low-temperature and pressure semi-cold and semi-pressure design, the temperature difference between the inside and the outside is very large, the marine liquefied gas fuel tank 100 needs to be uniformly provided with a heat insulation layer outside the parallel tank body so as to isolate external heat radiation from being transmitted into the marine liquefied gas fuel tank 100, thereby causing the temperature rise liquefied gas to evaporate, and controlling the temperature and the pressure in the parallel tank body. In order to increase the compressive resistance of the parallel tank body and ensure the sailing safety of ships, the parallel tank body is also provided with 2 structural reinforcing rings, 4 structural reinforcing rings and the like in the height direction, the specific number of the structural reinforcing rings can be set according to the height of the parallel tank body, the structural reinforcing rings are arranged on the outer surface of the parallel tank body, and the shape of the horizontal tangent plane of the structural reinforcing rings is the same as that of the horizontal tangent plane of the corresponding position of the parallel tank body.
Meanwhile, the present invention also provides a ship in which any one of the above-described marine liquefied gas fuel tanks 100 is arranged in the ship width direction.
Specifically, as shown in fig. 2, in the present embodiment, the marine liquefied gas fuel tank 100 is disposed below the gap deck 400 of the cargo tank 300 in the ship width direction, spaced apart from the cargo tanks 300 on both sides by transverse bulkheads, and the marine liquefied gas fuel tank 100 may protrude from the deck 400 to obtain more hold depending on the required amount of liquefied gas on the voyage. In this embodiment, the marine liquefied gas fuel tank 100 is disposed under the main deck in the middle of the cargo hold 300, which is not limited to this, and the marine liquefied gas fuel tank 100 may be disposed at the head and tail of the cargo hold 300 or other suitable places, including under the deck cover deck, according to the situation of the actual cargo hold 300, so that the structural space under the deck 400 is fully utilized without affecting the freight, the center of gravity of the whole ship is reduced, the space utilization is improved, the volume of the marine liquefied gas fuel is increased, and the voyage of the ship is increased.
As an example, the marine liquefied gas fuel tanks 100 are symmetrically arranged on the ship, the shortest lateral distance between the longitudinal bulkhead of the marine liquefied gas fuel tank 100 and the ship outer shell is greater than 1/5 or 11.5 meters of the ship width, the shortest distance between the bottom of the marine liquefied gas fuel tank 100 and the ship outer shell is greater than 1/15 or 2 meters of the ship width, and the shortest distance between the bottom of the marine liquefied gas fuel tank 100 and the ship outer shell is smaller.
Specifically, the marine liquefied gas fuel tanks 100 are symmetrically arranged left and right in the ship width direction, thus increasing the safety of the ship structure. The shortest transverse distance between the longitudinal bulkhead of the marine liquefied gas fuel tank 100 and the ship outer shell is greater than 1/5 or 11.5 meters of the ship width, and the shortest transverse distance is smaller than the shortest transverse distance, so that the marine liquefied gas fuel tank 100 and the ship outer shell have a certain distance, the probability of damage of the marine liquefied gas fuel tank 100 is reduced, even if the maximum probability of damage is that only a single tank body is damaged for water inflow, the water inflow when the ship side is damaged is reduced, and the stability and safety of the ship are improved; the shortest distance between the bottom of the marine liquefied gas fuel tank 100 and the outer bottom shell of the ship is 1/15 or 2 meters, the shortest distance between the bottom of the marine liquefied gas fuel tank 100 and the outer bottom shell of the ship is smaller, the height limit between the bottom of the marine liquefied gas fuel tank 100 and the outer bottom shell of the ship is adopted, the closed valve is matched, the probability of damage of the marine liquefied gas fuel tank 100 when the bottom of the ship is damaged is reduced, even if the maximum probability of damage is only that the middle tank body is damaged, the bottom of the side tank bodies are not damaged, the damage water inflow is reduced, and the stability and safety of the ship are improved.
As an example, the marine liquefied gas fuel tank 100 is mounted in a saddle 200, the saddle 200 is arranged along a ship width, the saddle 200 is provided corresponding to the marine liquefied gas fuel tank 100, and a ship cabin under the saddle 200 serves as a ballast tank 210.
Specifically, as shown in fig. 1-2, in this embodiment, the saddle 200 is an arc-shaped hull structure arranged along the width direction of the ship, and is arranged corresponding to the marine liquefied gas fuel tank 100, so as to firmly fix the marine liquefied gas fuel tank 100, and ensure the stability and safety of the marine liquefied gas fuel tank 100. More preferably, the contact portion between the saddle 200 and the marine liquefied gas fuel tank 100 is further provided with an elastic limit structure, so as to avoid rigid contact with the marine liquefied gas fuel tank 100 and improve the safety of the ship. In addition, the cabin below the saddle 200 may be used as a ballast tank 210, and the ballast tank 210 may be filled with ballast water after the gas fuel in the marine liquefied gas fuel tank 100 is largely consumed, so as to secure the stability of the ship.
In summary, the marine liquefied gas fuel tank and the marine vessel have the following beneficial effects: the marine liquefied gas fuel tank at least comprises a parallel tank body, a gas chamber and a hydrops well, wherein watertight bulkheads are arranged between adjacent tank bodies of the parallel tank body and are not communicated with each other, and the valves are matched to be kept closed. In addition, the gas fuel is continuously consumed in the whole sailing process, the liquid level is continuously changed, watertight bulkheads are arranged, the free liquid level of liquefied gas at different liquid level heights is reduced, the sloshing load in the bulkheads is reduced, and the safety of the ship structure is improved; through the arrangement that the bottom of the middle tank body is lower than the bottoms of the side tank bodies at the two sides and the height limitation of the tank body bottom from the outer bottom shell of the ship, the valve which is kept closed is matched, so that when the bottom of the ship is damaged, only the middle tank body is damaged at maximum, the bottom of the side tank bodies at the two sides is not damaged, the loss of liquefied gas is reduced, meanwhile, the damage water inflow is reduced, and the stability and the safety of the ship are improved; through the arrangement of the gas-phase communicating pipe and the liquid-phase communicating pipe, one gas chamber and one effusion well are configured, and only one set of liquid cargo pump, one set of gas communicating pipeline, a control valve body, liquid cargo equipment and the like are correspondingly required to be configured, so that the number of liquid cargo pumps is reduced, the number of liquid cargo equipment and pipelines is reduced, and the cost is saved.
Further, the marine liquefied gas fuel tank is arranged in the ship along the ship width direction and can protrude out of the deck, so that the structural space below the deck is utilized to the maximum extent, the space utilization rate is improved, the capacity of the marine liquefied gas fuel is improved, and the ship voyage is increased.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. A marine liquefied gas fuel tank, characterized in that the marine liquefied gas fuel tank comprises at least:
the parallel tank body comprises a middle tank body and side tank bodies positioned at two sides of the middle tank body, longitudinal bulkheads are arranged between adjacent tank bodies and are not communicated with each other, the extending direction of the longitudinal bulkheads is vertical to the ship width direction, the parallel tank body is in a flat high form, the tank bodies at two sides are identical in diameter, the diameter of the side tank bodies is smaller than or equal to that of the middle tank body, the height of the middle tank body is larger than that of the side tank body, and the bottom of the middle tank body is lower than that of the side tank body;
the air chamber is arranged at the top of the middle tank body and is connected with the top of the side tank body through a gas phase communicating pipe;
the hydrops well, the hydrops well set up in the bottom of the intermediate tank body, with the bottom of the side tank body links to each other through liquid phase communicating pipe, and each the side tank body with correspond between the intermediate tank body all be provided with the valve on the liquid phase communicating pipe.
2. The marine liquefied gas fuel tank as set forth in claim 1, wherein: the longitudinal bulkhead is a watertight bulkhead.
3. The marine liquefied gas fuel tank as set forth in claim 1, wherein: the valve is a remote control valve, and the opening or closing state of the valve is controlled by a liquid cargo control system.
4. The marine liquefied gas fuel tank as set forth in claim 1, wherein: the marine liquefied gas fuel tank is a semi-cold and semi-pressure marine liquefied gas fuel tank, and the shape of the seal head comprises one of a sphere, a dish shape and an ellipse.
5. The marine liquefied gas fuel tank as set forth in claim 1, wherein: the parallel tank body is provided with a heat insulation layer outside, and a structure reinforcing ring is arranged on the height direction outside the parallel tank body.
6. A ship, characterized in that: the ship is provided with the marine liquefied gas fuel tank according to any one of claims 1 to 5 in a ship width direction.
7. The vessel according to claim 6, wherein: the marine liquefied gas fuel tanks are symmetrically arranged on the ship left and right, the shortest transverse distance between the longitudinal bulkhead of the marine liquefied gas fuel tank and the ship outer shell is greater than 1/5 or 11.5 meters of the ship width, the shortest distance between the longitudinal bulkhead of the marine liquefied gas fuel tank and the ship outer shell is smaller than 1/15 or 2 meters, and the shortest distance between the bottom of the marine liquefied gas fuel tank and the ship outer shell is greater than the ship width, and the shortest distance between the marine liquefied gas fuel tank and the ship outer shell is smaller than the shortest distance between the marine liquefied gas fuel tank and the ship outer shell.
8. The vessel according to claim 6, wherein: the marine liquefied gas fuel tank is installed in the saddle, the saddle is arranged along the width of the ship, the saddle corresponds to the marine liquefied gas fuel tank, and the lower cabin of the saddle is used as a ballast tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571201.1A CN114771740B (en) | 2022-05-24 | 2022-05-24 | Marine liquefied gas fuel tank and ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571201.1A CN114771740B (en) | 2022-05-24 | 2022-05-24 | Marine liquefied gas fuel tank and ship |
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| CN114771740A CN114771740A (en) | 2022-07-22 |
| CN114771740B true CN114771740B (en) | 2023-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO138651C (en) * | 1976-12-30 | 1978-10-18 | Moss Rosenberg Verft As | DEVICE FOR TWIN TANKS FOR PRESSURE EQUALIZATION IN THE GAS PHASE |
| CN105398547A (en) * | 2015-11-27 | 2016-03-16 | 张家港富瑞重型装备有限公司 | Marine cargo tank storage tank |
| CN205203292U (en) * | 2015-12-18 | 2016-05-04 | 上海铠韧气体工程有限公司 | Marine liquefied gas storage tank of triplet |
| CN212951017U (en) * | 2020-05-08 | 2021-04-13 | 星恩杰气体(新加坡)有限公司 | Single-air-chamber fuel tank with external gas phase balance system and transport ship thereof |
| CN113911261B (en) * | 2020-07-07 | 2023-03-14 | 江南造船(集团)有限责任公司 | Liquefied gas transport ship |
| CN111776144A (en) * | 2020-07-21 | 2020-10-16 | 江南造船(集团)有限责任公司 | Liquid tank arrangement method for liquefied gas carrier and liquefied gas carrier |
| CN113212664A (en) * | 2021-06-09 | 2021-08-06 | 江南造船(集团)有限责任公司 | Air chamber communication structure and liquefied gas carrier of C type fluid reservoir |
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2022
- 2022-05-24 CN CN202210571201.1A patent/CN114771740B/en active Active
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