阅读说明：本技术 一种甲醇燃料罐和船舶 (Methanol fuel tank and ship ) 是由 黎相森 石春光 高峰 王亮 罗秋珍 于 2021-06-29 设计创作，主要内容包括：本发明涉及船舶技术领域,尤其涉及一种甲醇燃料罐和船舶,甲醇燃料罐包括燃料罐本体,具有中空的容置腔；第一隔板,沿竖直方向设置在所述容置腔中,且与所述燃料罐本体的内底面连接,所述第一隔板能够将所述容置腔分隔为上端连通的第一腔和第二腔,所述第一腔用于存放燃料,所述第二腔用于对经主机回流的燃料进行沉淀；第二隔板,沿竖直方向设置在所述第二腔中,且与所述燃料罐本体的内顶面连接；注入管,所述注入管设置在所述燃料罐本体上；排出管,所述排出管设置在所述燃料罐本体的一侧,且与所述第一腔连通；回液管,所述回液管设置在所述燃料罐本体上。本发明能够将甲醇装到船舶中作为清洁能源,从而降低氮化物和硫化物的排放。(The invention relates to the technical field of ships, in particular to a methanol fuel tank and a ship, wherein the methanol fuel tank comprises a fuel tank body and a fuel tank cover, wherein the fuel tank body is provided with a hollow accommodating cavity; the first partition plate is arranged in the accommodating cavity in the vertical direction and is connected with the inner bottom surface of the fuel tank body, the accommodating cavity can be divided into a first cavity and a second cavity, the upper ends of the first cavity and the second cavity are communicated, the first cavity is used for storing fuel, and the second cavity is used for precipitating the fuel which flows back through the host; the second partition plate is arranged in the second cavity along the vertical direction and is connected with the inner top surface of the fuel tank body; an filler pipe provided on the fuel tank body; a discharge pipe provided at one side of the fuel tank body and communicating with the first chamber; and the liquid return pipe is arranged on the fuel tank body. The invention can load the methanol into the ship as clean energy, thereby reducing the emission of nitride and sulfide.)

1. A methanol fuel tank, characterized by comprising:

a fuel tank body (1) having a hollow accommodating chamber;

the first partition plate (2) is arranged in the accommodating cavity in the vertical direction and is connected with the inner bottom surface of the fuel tank body (1), the accommodating cavity can be divided into a first cavity (11) and a second cavity (12) by the first partition plate (2), the upper ends of the first cavity and the second cavity are communicated, the first cavity (11) is used for storing fuel, and the second cavity (12) is used for precipitating the fuel which flows back through the main engine;

the second partition plate (3) is arranged in the second cavity (12) along the vertical direction and is connected with the inner top surface of the fuel tank body (1);

an injection pipe (13), the injection pipe (13) being provided on the fuel tank body (1) and communicating with the first chamber (11);

a discharge pipe (14), the discharge pipe (14) being provided at one side of the fuel tank body (1), and communicating with the first chamber (11), for discharging fuel into the host machine;

the liquid return pipe (15) is arranged on the fuel tank body (1), is communicated with the second cavity (12), and is positioned between the second partition plate (3) and the side surface of the fuel tank body (1).

2. The methanol fuel tank of claim 1, characterized in that the first chamber (11) is provided with a liquid level detection device, which can give an alarm when the liquid level of the fuel in the first chamber (11) reaches a set level value.

3. The methanol fuel tank of claim 2, characterized in that the liquid level detection device comprises a liquid level sensor disposed in the first chamber (11) and a first alarm electrically connected to the liquid level sensor.

4. The methanol fuel tank as defined in claim 1, characterized in that the lower end of the fuel tank body (1) is provided with a first on-off valve (16) and a second on-off valve (17), the first on-off valve (16) communicating with the first chamber (11), the second on-off valve (17) communicating with the second chamber (12).

5. The methanol fuel tank of claim 1, wherein a pressure relief valve (4) is arranged on the upper end surface of the fuel tank body (1), the pressure relief valve (4) is communicated with the first cavity (11), and when the gas pressure in the accommodating cavity is greater than a set value, the pressure relief valve (4) can be automatically opened to exhaust gas.

6. The methanol fuel tank as defined in claim 1, wherein the second partition (3) has a plurality of through holes (31) opened at an upper end thereof.

7. The methanol fuel tank of claim 1, characterized in that the second chamber (12) is provided with a foreign matter level detection device, which can give an alarm when the foreign matter in the second chamber (12) reaches a set foreign matter level value.

8. The methanol fuel tank of claim 7, characterized in that the impurity level detection means comprises an impurity sensor disposed in the second chamber (12) and a second alarm electrically connected to the impurity sensor.

9. The methanol fuel tank of claim 1, further comprising an inert gas protection device (5), wherein the inert gas protection device (5) is provided on the fuel tank body (1), and when the pressure of the fuel tank body (1) is reduced, the inert gas protection device (5) can automatically release inert gas to maintain an inerting environment inside the fuel tank body (1).

10. A ship comprising the methanol fuel tank according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of ships, in particular to a methanol fuel tank and a ship.

Background

Along with the development of the transportation industry, more and more ships are put into use, and the ships can realize large-tonnage ocean transportation and realize the globalization of transportation. In the prior art, the full-length ship adopts diesel oil as fuel, and when the diesel oil is set off, a large amount of sulfide and nitride are generated, so that the environmental pollution is caused. Methanol is increasingly popular as a clean fuel, and the emission pollution of the methanol is small, but how to load the methanol on a ship to be used as the clean fuel is a difficult problem.

Therefore, a methanol fuel tank and a ship are required to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a methanol fuel tank and a ship, which can be used for loading methanol into the ship as clean energy, thereby reducing the emission of nitride and sulfide.

In order to achieve the purpose, the invention adopts the following technical scheme:

a methanol fuel tank comprising:

the fuel tank body is provided with a hollow accommodating cavity;

the first partition plate is arranged in the accommodating cavity in the vertical direction and is connected with the inner bottom surface of the fuel tank body, the accommodating cavity can be divided into a first cavity and a second cavity, the upper ends of the first cavity and the second cavity are communicated, the first cavity is used for storing fuel, and the second cavity is used for precipitating the fuel which flows back through the host;

the second partition plate is arranged in the second cavity along the vertical direction and is connected with the inner top surface of the fuel tank body;

an injection pipe provided on the fuel tank body and communicating with the first chamber;

the discharge pipe is arranged on one side of the fuel tank body, is communicated with the first cavity and is used for discharging fuel into the host;

and the liquid return pipe is arranged on the fuel tank body, is communicated with the second cavity and is positioned between the second partition plate and the side surface of the fuel tank body.

Further, a liquid level detection device is arranged in the first cavity, and when the liquid level surface of the fuel in the first cavity reaches a set liquid level value, the liquid level detection device can give an alarm.

Further, the liquid level detection device comprises a liquid level sensor and a first alarm, the liquid level sensor is arranged in the first cavity, and the first alarm is electrically connected with the liquid level sensor.

Further, the lower end of the fuel tank body is provided with a first switch valve and a second switch valve, the first switch valve is communicated with the first cavity, and the second switch valve is communicated with the second cavity.

Further, the upper end face of the fuel tank body is provided with a pressure relief valve, the pressure relief valve is communicated with the first cavity, and when the gas pressure of the accommodating cavity is larger than a set value, the pressure relief valve can be automatically opened to exhaust gas.

Furthermore, a plurality of through holes are formed in the upper end of the second partition plate.

Furthermore, an impurity liquid level detection device is arranged in the second cavity, and when impurities in the second cavity reach a set impurity liquid level value, the impurity liquid level detection device can give an alarm.

Further, impurity liquid level detection device includes impurity sensor and second alarm, impurity sensor sets up in the second chamber, the second alarm with impurity sensor electricity is connected.

Further, the inert gas protection device is arranged on the fuel tank body, and when the pressure of the fuel tank body is reduced, the inert gas protection device can automatically release inert gas to maintain the inerting environment in the fuel tank body.

A marine vessel comprising a methanol fuel tank as described above.

The invention has the beneficial effects that:

according to the methanol fuel tank provided by the invention, the accommodating cavity of the fuel tank body is internally provided with the first partition plate, the accommodating cavity is divided into the first cavity and the second cavity, the upper ends of the first cavity and the second cavity are mutually communicated, the first cavity is used for storing methanol fuel, the second cavity is used for precipitating the methanol fuel which flows back through the host, the methanol fuel floats above due to small density of the methanol, when the methanol fuel in the second cavity is stored to a certain degree, the methanol fuel overflows into the first cavity through the communication part of the second cavity and the first cavity, and impurities are deposited in the second cavity; the second partition plate can isolate the methanol fuel which flows back through the main machine from the first cavity, so that the methanol fuel is prevented from directly entering the first cavity; methanol fuel enters the first cavity through the injection pipe, is discharged into the main machine through the discharge pipe to work, and enters the second cavity through the liquid return pipe to deposit impurities. Through the arrangement, the methanol can be loaded into the ship as clean energy, and the emission of nitride and sulfide is reduced while the normal work of the main engine is ensured.

The ship provided by the invention comprises the methanol fuel tank, and can be used for loading methanol into the ship as clean energy, so that the emission of nitride and sulfide is reduced.

Drawings

FIG. 1 is a side view of a methanol fuel tank of the present invention;

FIG. 2 is a front view of a second baffle plate in a methanol fuel tank of the present invention;

FIG. 3 is a perspective view of a methanol fuel tank according to the present invention, which has a square structure;

fig. 4 is a perspective view of a methanol fuel tank according to the present invention, which has a cylindrical structure.

In the figure:

1. a fuel tank body; 11. a first chamber; 12. a second chamber; 13. an injection pipe; 14. a discharge pipe; 15. a liquid return pipe; 16. a first on-off valve; 17. a second on-off valve; 2. a first separator; 3. a second separator; 31. a through hole; 4. a pressure relief valve; 5. and an inert gas protection device.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to ensure that the ship normally operates and simultaneously can load methanol into the ship as clean energy, thereby reducing the emission of nitride and sulfide, the invention provides a methanol fuel tank as shown in figures 1-4. This methanol fuel jar includes: a fuel tank body 1, a first partition plate 2, a second partition plate 3, an injection pipe 13, a discharge pipe 14, and a liquid return pipe 15.

Wherein, the fuel tank body 1 is provided with a hollow accommodating cavity; the first partition plate 2 is arranged in the accommodating cavity in the vertical direction and is connected with the inner bottom surface of the fuel tank body 1, the accommodating cavity can be divided into a first cavity 11 and a second cavity 12, the upper ends of the first cavity 11 and the second cavity are communicated, the first cavity 11 is used for storing fuel, and the second cavity 12 is used for precipitating the fuel which flows back through the main machine; the second partition plate 3 is arranged in the second chamber 12 along the vertical direction and is connected with the inner top surface of the fuel tank body 1; the injection pipe 13 is fixedly arranged on the fuel tank body 1 and is communicated with the first cavity 11; the discharge pipe 14 is fixedly arranged at one side of the fuel tank body 1, is communicated with the first cavity 11 and is used for discharging fuel into a host; the liquid return pipe 15 is fixedly arranged on the fuel tank body 1 and communicated with the second cavity 12, and the liquid return pipe 15 is provided with a filter and is positioned between the second partition plate 3 and the side surface of the fuel tank body 1.

The first partition plate 2 divides the accommodating cavity into a first cavity 11 and a second cavity 12, the upper ends of the first cavity 11 and the second cavity 12 are mutually communicated, the first cavity 11 is used for storing methanol fuel, the second cavity 12 is used for precipitating the methanol fuel which flows back through the host, the methanol fuel floats above due to small density, when the methanol fuel in the second cavity 12 is stored to a certain degree, the methanol fuel overflows into the first cavity 11 through the communication part of the second cavity 12 and the first cavity 11, and impurities are deposited in the second cavity 12; by arranging the second partition plate 3, the methanol fuel which flows back through the main machine can be isolated from the first cavity 11, and the methanol fuel is prevented from directly entering the first cavity 11; methanol fuel enters the first chamber 11 through the injection pipe 13, is discharged into the main machine through the discharge pipe 14 to work, and enters the second chamber 12 through the liquid return pipe 15 to deposit impurities. Through the arrangement, the methanol can be loaded into the ship as clean energy, and the emission of nitride and sulfide is reduced while the normal work of the main engine is ensured.

Further, a liquid level detection device is arranged in the first cavity 11, and when the liquid level of the fuel in the first cavity 11 reaches a set liquid level value, the liquid level detection device can give an alarm. Through setting up liquid level detection device be convenient for in time know the height of liquid level in the holding chamber behind the filling methanol fuel, prevent that the methanol filling is not enough or excessively leads to the methanol to spill over from fuel jar body 1.

Specifically, the liquid level detection device includes a liquid level sensor and a first alarm, the liquid level sensor is disposed in the first cavity 11, and the first alarm is electrically connected with the liquid level sensor. The liquid level sensor detects the liquid level in the accommodating cavity in real time, and when the liquid level rises to a set position, the liquid level sensor controls the first alarm to give an alarm to prompt a filling person that the methanol fuel is filled completely, and the filling can be stopped. Specifically, in the present embodiment, the liquid level line is 98% of the maximum filling height of the fuel tank body 1.

Specifically, the maximum height of the first partition 2 may be set to be 50mm below the liquid level line, at least 1000mm below the liquid level line is the height of the second partition 3, and the minimum height of the second partition 3 is 500mm from the maximum liquid level line of the oil residue. In other embodiments, the first partition board 2 and the second sub-rack may be designed according to actual needs, and no limitation is made herein.

Further, the lower end of the fuel tank body 1 is provided with a first on-off valve 16 and a second on-off valve 17, the first on-off valve 16 communicating with the first chamber 11, and the second on-off valve 17 communicating with the second chamber 12. The fuel in the first chamber 11 can be discharged by providing the first switching valve 16, and the deposited foreign substances in the second chamber 12 can be discharged by providing the second switching valve 17.

Further, the upper end face of the fuel tank body 1 is provided with a pressure release valve 4, the pressure release valve 4 is communicated with the first cavity 11, and after the gas pressure of the accommodating cavity is larger than a set value, the pressure release valve 4 can be automatically opened to exhaust gas. When filling the methanol fuel, the air is required to be discharged during the filling process of the methanol fuel because the accommodating chamber has the air therein. After the gas pressure is larger than the set value, the gas automatically pushes the pressure release valve 4 open, so that the gas is discharged, and the safety of the fuel tank body 1 is ensured in the process of filling fuel. In order to ensure the smoothness of the pressure release, in the present embodiment, the pressure release valve 4 is located in the middle of the upper end of the fuel tank body 1.

After the methanol fuel is buried in the first partition board 2, the second chamber 12 is difficult to be controlled to be discharged through the first chamber 11, and in order to facilitate air discharge, a plurality of through holes 31 are formed at the upper end of the second partition board 3. During the filling process, the gas in the second chamber 12 can be discharged into the first chamber 11 through the through hole 31 of the second partition plate 3, thereby being smoothly discharged.

Further, be provided with impurity liquid level detection device in the second chamber 12, after impurity arrival in the second chamber 12 set for impurity level value, impurity liquid level detection device can report to the police. The impurity level detection device can be used for monitoring the deposited impurities in the second cavity 12 in real time, so that the excessive deposited impurities are prevented from influencing the quality of the methanol fuel.

Specifically, impurity liquid level detection device includes impurity sensor and second alarm, and impurity sensor sets up in second chamber 12, and the second alarm is connected with impurity sensor electricity. Impurity sensor can carry out real-time supervision to sedimentary impurity gold, and when sedimentary impurity reached and sets for impurity liquid level value, impurity sensor control second alarm reported to the police, reminds personnel to clear away impurity to guarantee the cleanness of fuel.

Further, the methanol fuel tank further comprises an inert gas protection device 5 which is arranged on the fuel tank body 1, when the pressure of the fuel tank body 1 is reduced, the inert gas protection device 5 can automatically release inert gas to maintain the inerting environment in the fuel tank body.

The embodiment also provides a ship comprising the methanol fuel tank, which can be used for loading methanol into the ship as clean energy, thereby reducing the emission of nitride and sulfide.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.