CN111520557A - Three-way joint, cargo oil conveying system, use method of cargo oil conveying system and ship - Google Patents

Abstract

The invention discloses a three-way joint, a cargo oil conveying system, a use method of the cargo oil conveying system and a ship. The cargo oil conveying system comprises a plurality of cargo oil main pipes and a plurality of cargo oil cabins which are arranged side by side, the three-way joint is arranged between the two adjacent cargo oil main pipes, the cargo oil cabins are sequentially arranged along the length direction of the ship, one cargo oil main pipe is communicated with one cargo oil cabin, and the two cargo oil cabins corresponding to the two adjacent cargo oil main pipes are respectively positioned on two sides of the gravity center of the ship. When two or more than two different types of cargo oil are required to be conveyed simultaneously, the cargo oil conveying system can improve the conveying efficiency of the cargo oil and can keep the ship in good stability.

Description

Three-way joint, cargo oil conveying system, use method of cargo oil conveying system and ship

Technical Field

The invention relates to the technical field of ship design, in particular to a three-way joint, a cargo oil conveying system, a using method of the cargo oil conveying system and a ship.

Background

The tanker is generally divided into several cargo tanks, each of which shares a main cargo pipe that is open to the shore and is collected at the middle filling station of the vessel (the main cargo pipes are usually arranged in order, such as No.1 to No.6), and the filling station is connected with the oil terminal or a hose on the shore through a shore connection suggested by the international maritime forum (ocemf) of the oil company for oil transportation. When the oil terminal loads oil on the ship, one hose can only be connected with one cargo oil main pipe, and the oil is injected into one cargo oil tank. When the ship only loads one kind of cargo oil, a filling hose can be adopted for conveying, and the cargo oil can flow into each cargo oil main pipe through a communicating pipe arranged between the cargo oil main pipes and then flow into each cargo oil tank. However, when the ship loads more than two kinds of cargo oil, in order to avoid the cargo oil mixing in the communicating pipe, the communicating pipe needs to be in a closed state, and only one cargo oil can be injected into one cargo oil tank by one filling hose. The unloading operation of cargo on the ship is opposite to the loading process, and similarly, if two cargo types are exceeded on the ship, the two cargo types cannot be discharged to the shore through a hose at the same time.

The stability of the vessel must be maintained when loading and unloading cargo from the tanker, which usually takes into account the loading or unloading of symmetrical tanks to facilitate the stability of the vessel during loading. In addition, the loading and unloading time is directly beneficial to the shipowner, and the reduction of the loading and unloading time is the goal pursued by the shipowner, while the number of hoses and the length of hose booms available at an oil terminal or on shore are limited. According to the general cargo oil main pipe arrangement of current, if the cargo oil of loading simultaneously exceeds two kinds, because of different cargo oils can not mix, need keep apart, an oil delivery hose can only carry out cargo oil's input or output to a cargo oil cabin, and cargo oil transport efficiency is low, and the occupation time to the wharf facility is long. In addition, the operation of transporting cargo oil when only one oil transportation is available will result in the stability of the vessel being compromised.

Disclosure of Invention

The invention aims to provide a three-way joint, a cargo oil conveying system, a using method thereof and a ship.

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

on the one hand, the three-way joint is Y-shaped and comprises a main pipe section and two branch pipe sections, wherein a first outlet end is arranged on the main pipe section, a second outlet end and a third outlet end are respectively arranged on the branch pipe sections, a first flange is arranged on the first outlet end, a second flange is arranged on the second outlet end and the third outlet end, the first flange is a neck butt welding flange, and the second flange is a loose flange.

As a preferable scheme of the invention, the main pipe section is a T-shaped tee joint, and the two branch pipe sections are both 90-degree elbows.

As a preferable scheme of the present invention, two lifting rings are provided on the main pipe section.

On the other hand, provide an oil delivery system, including a plurality of oil main that set up side by side, adjacent two be provided with above-mentioned any technical scheme between the oil main tee joint, the second exit end with the third exit end is respectively with one the oil main's one end is connected, first exit end and an oil delivery hose connection.

As a preferable scheme of the present invention, the cargo oil transportation system further includes a plurality of cargo oil tanks, the plurality of cargo oil tanks are sequentially arranged along a length direction of the ship, one cargo oil main pipe is communicated with one cargo oil tank, and two cargo oil tanks corresponding to two adjacent cargo oil main pipes are respectively located on two sides of a center of gravity of the ship.

As a preferable aspect of the present invention, the number of the cargo main pipes and the cargo tanks is six, and the cargo main pipes include first to sixth cargo main pipes and first to sixth cargo tanks, the first cargo main pipe is communicated with the first cargo tank, the second cargo main pipe is communicated with the fourth cargo tank, the third cargo main pipe is communicated with the third cargo tank, the fourth cargo main pipe is communicated with the fifth cargo tank, the fifth cargo main pipe is communicated with the second cargo tank, and the sixth cargo main pipe is communicated with the sixth cargo tank.

As a preferable mode of the present invention, the cargo tank includes a left tank and a right tank, and the left tank and the right tank are symmetrically disposed about a center line in a length direction of the ship.

In addition, a use method of the cargo oil conveying system is further provided, and the use method comprises the following steps:

s10, providing at least two oil conveying hoses, at least two tee joints, at least four cargo oil main pipes and at least four cargo oil cabins;

s20, respectively connecting a second outlet end and a third outlet end of the three-way joint with two adjacent cargo oil main pipes, and connecting one oil conveying hose with a first outlet end of one three-way joint;

s30, conveying one kind of cargo oil into two cargo oil cabins from one oil conveying hose, and conveying the other kind of cargo oil into the other two cargo oil cabins from the other oil conveying hose;

or one cargo oil in two cargo oil tanks is output to one oil conveying hose, and the other cargo oil in the other two cargo oil tanks is output to the other oil conveying hose.

Finally, a ship is provided, which comprises the cargo oil conveying system of any one of the above technical schemes.

The invention has the beneficial effects that:

the three-way joint enables one oil conveying hose to be simultaneously connected to two cargo oil main pipes, a communicating pipe between the cargo oil main pipes is not needed for conveying cargo oil, and when two different cargo oil conveying operations are required to be simultaneously carried out, the cargo oil conveying efficiency can be improved. The cargo oil conveying system sets the corresponding relation between the cargo oil main pipes and the cargo oil cabins, so that two or two groups of cargo oil cabins corresponding to two adjacent cargo oil main pipes are respectively positioned at two sides of the gravity center of the ship, and the stability of the ship can be kept even if only a single oil conveying hose is adopted for carrying out cargo oil conveying operation.

Drawings

FIG. 1 is a top view of a three-way joint according to an embodiment of the present invention;

FIG. 2 is a front view of a three-way joint of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a prior art cargo oil delivery system;

fig. 4 is a schematic structural diagram of an oil delivery system according to an embodiment of the present invention.

In the figure:

1. a three-way joint; 11. a main pipe section; 111. a first flange; 112. a hoisting ring; 12. a branch pipe section; 121. a second flange; 2. an oil delivery hose; 31. a first cargo oil main; 32. a second cargo oil main; 33. a third cargo oil main; 34. a fourth cargo oil main; 35. a fifth cargo oil main; 36. a sixth cargo oil main; 41. a first cargo tank; 411. a first left compartment; 412. a first right pod; 42. a second cargo tank; 43. a third cargo tank; 44. a fourth cargo tank; 45. a fifth cargo tank; 46. a sixth cargo tank; 5. a communication pipe is provided.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

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 word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1, 2 and 4, a tee joint 1 according to an embodiment of the present invention is Y-shaped, and includes a main pipe section 11 and two branch pipe sections 12, the main pipe section 11 is provided with a first outlet end, the two branch pipe sections 12 are respectively provided with a second outlet end and a third outlet end, the first outlet end is provided with a first flange 111, the second outlet end and the third outlet end are both provided with a second flange 121, the first flange 111 is a neck butt welding flange, and the second flange 121 is a loose flange. The first flange 111 is a neck butt welding flange, and the flange surface is manufactured by using ASME B16.5 standard, so that the requirement of an international maritime forum (OCIMF) connection hose of an oil company is met. The second flange 121 is a loose flange, the flange surface is the same as the flange standard of the end part of the cargo oil main pipe, and the loose flange is adopted to ensure that the flange can rotate at will and is conveniently and quickly connected with the flange of the cargo oil main pipe. If fixed welding flanges are adopted, the bolt holes of the flange surface of the three-way joint 1 and the flange surface of the cargo oil main pipe are easily dislocated due to the existence of manufacturing errors, so that the three-way joint and the cargo oil main pipe cannot be connected. The material of the three-way joint 1 can adopt carbon steel or stainless steel, and if the carbon steel is adopted, painting is needed.

Preferably, the main pipe section 11 is a T-shaped tee, and both the two branch pipe sections 12 are 90-degree elbows. The T-shaped tee joint and the 90-degree elbow are common pipe fittings, so that the tee joint 1 has lower manufacturing cost.

Furthermore, two lifting rings 112 are provided on the main pipe section 11 to facilitate the installation of the three-way joint 1.

The embodiment of the invention also provides a cargo oil conveying system which comprises a plurality of cargo oil main pipes arranged side by side, wherein the three-way joint 1 of any one embodiment is arranged between every two adjacent cargo oil main pipes, the second outlet end and the third outlet end of the three-way joint 1 are respectively connected with one end of one cargo oil main pipe, and the first outlet end is connected with one oil conveying hose 2. The three-way joint 1 is arranged on two adjacent cargo oil main pipes, and cargo oil can be simultaneously input into two different cargo oil cabins or the cargo oil in the two different cargo oil cabins can be simultaneously output by only using one oil hose instead of two oil hoses 2. Because the quantity of oil delivery hose 2 all is less usually, can't satisfy every cargo oil main pipe homoenergetic and set up an oil delivery hose 2 alone, compare in the current cargo oil conveying system that figure 3 shows, the cargo oil conveying system of this embodiment can improve cargo oil's transport efficiency.

In the following, a specific embodiment is described, in which the number of cargo main pipes and cargo tanks is six. As shown in fig. 3, when it is necessary to input or output two different cargo oils at the same time, the conventional cargo oil transportation system connects one oil hose 2 to the third cargo oil main pipe 33, the third cargo oil main pipe 33 is communicated with the third cargo oil tank 43, in order to keep the balance of the ship, another oil hose 2 is connected to the sixth cargo oil main pipe 36, the sixth cargo oil main pipe 36 is communicated with the sixth cargo oil tank 46, and in order to prevent the two cargo oils from being mixed, the communication pipe 5 cannot be communicated with the third cargo oil main pipe 33 and the sixth cargo oil main pipe 36, so that only the cargo oil transportation or discharge operation for the third cargo oil tank 43 and the sixth cargo oil tank 46 can be realized, and the efficiency is low. Of course, the number of cargo main pipes and cargo tanks may be other numbers, and the number is specifically limited in this embodiment for convenience of illustration only, and does not mean that the present invention must be implemented by the specific embodiments described above.

As shown in fig. 4, when it is necessary to simultaneously carry out input or output of two different kinds of cargo, two oil hoses 2 are connected to one three-way joint 1, one of the three-way joints 1 is connected to the second cargo main pipe 32 and the third cargo main pipe 33, and the other three-way joint 1 is connected to the fifth cargo main pipe 35 and the sixth cargo main pipe 36. At this time, one oil hose 2 is simultaneously communicated with the third cargo oil tank 43 and the fourth cargo oil tank 44, and the other oil hose 2 is simultaneously communicated with the second cargo oil tank 42 and the sixth cargo oil tank 46, that is, the two oil hoses 2 can realize that four different cargo oil tanks simultaneously carry out cargo oil input or output operation, and have higher efficiency.

Preferably, a plurality of cargo oil tanks are arranged in sequence along the length direction of the ship, one cargo oil main pipe is communicated with one cargo oil tank, and two cargo oil tanks corresponding to two adjacent cargo oil main pipes are respectively positioned at two sides of the gravity center of the ship, so that the stability of the ship in the operation process can be kept no matter which three-way connector 1 is connected with the oil hose 2 for cargo oil input or output operation, when only one oil hose 2 is available, the cargo oil conveying operation can be carried out, the stability of the ship can be kept at the same time, and if the existing cargo oil conveying system only adopts a single oil hose 2 for cargo oil conveying operation, the instability of the ship is inevitably caused. If two cargo tanks corresponding to two adjacent cargo oil main pipes are located on the same side of the gravity center of the ship, the ship body is prone to having overlarge trim.

Specifically, the first cargo main pipe 31 is communicated 41 with the first cargo tank, the second cargo main pipe 32 is communicated 44 with the fourth cargo tank, the third cargo main pipe 33 is communicated 43 with the third cargo tank, the fourth cargo main pipe 34 is communicated 45 with the fifth cargo tank, the fifth cargo main pipe 35 is communicated 42 with the second cargo tank, and the sixth cargo main pipe 36 is communicated 46 with the sixth cargo tank.

In some embodiments, the first cargo tank 41 comprises a first left tank 411 and a first right tank 412, the first left tank 411 and the first right tank 412 being symmetrically arranged about a mid-line in the length direction of the vessel. The first left tank 411 and the first right tank 412 form a set of cargo tanks, the first cargo tank 41 is divided into two symmetrical parts, the stability of the ship can be improved, and other cargo tanks can be arranged in the mode so as to improve the stability of the ship.

The embodiment of the invention also provides a using method of the cargo oil conveying system, which comprises the following steps:

s10, providing at least two three-way joints 1, at least two oil conveying hoses 2, at least four cargo oil main pipes and at least four cargo oil tanks;

s20, respectively connecting a second outlet end and a third outlet end of the three-way joint 1 with two adjacent cargo oil main pipes, and connecting an oil conveying hose 2 with a first outlet end of the three-way joint 1;

s30, conveying one kind of cargo oil into two cargo oil cabins by one oil conveying hose 2, and conveying the other kind of cargo oil into the other two cargo oil cabins by the other oil conveying hose 2;

or, one cargo in two cargo tanks is output to one oil hose 2, while the other cargo in the other two cargo tanks is output to the other oil hose 2.

The use method of the cargo oil transportation system of the embodiment is suitable for simultaneously carrying out input or output operation of two or more cargo oils, and has higher cargo oil transportation efficiency under the condition that the number of the oil transportation hoses 2 is insufficient. Of course, it is also possible to supply and discharge a cargo oil to and from two cargo tanks simultaneously by means of a three-way connection 1, in the case of only one oil supply hose 2.

The embodiment of the invention also provides a ship, which comprises the cargo oil conveying system in any one of the embodiments, so that the cargo oil loading and unloading time is short, the occupation time of wharf facilities is shortened, and the economic benefit of the ship is improved.

Reference throughout this specification to the description of the terms "preferred," "further," or the like, as used in describing preferred embodiments of the present invention, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above examples are only intended to illustrate the details of the invention, which is not limited to the above details, i.e. it is not intended that the invention must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims (9)

1. The utility model provides a three way connection, its characterized in that is the Y type, includes that one is responsible for section and two spinal branch pipe sections, be provided with first exit end on being responsible for the section, two be provided with second exit end and third exit end on the spinal branch pipe section respectively, be provided with first flange on the first exit end, the second exit end reaches all be provided with the second flange on the third exit end, first flange is for taking neck butt welding flange, the second flange is the lap joint flange.

2. The tee fitting of claim 1, wherein the main pipe section is a T-tee and both of the leg sections are 90-degree elbows.

3. The three-way joint according to claim 2, wherein two lifting rings are provided on the main pipe section.

4. A cargo oil transportation system comprising a plurality of cargo oil main pipes arranged side by side, wherein a three-way joint according to any one of claims 1 to 3 is arranged between two adjacent cargo oil main pipes, the second outlet end and the third outlet end are respectively connected with one end of one cargo oil main pipe, and the first outlet end is connected with an oil transportation hose.

5. The cargo oil transportation system according to claim 4, further comprising a plurality of cargo oil tanks, wherein the plurality of cargo oil tanks are sequentially arranged along a length direction of the ship, one cargo oil main pipe is communicated with one cargo oil tank, and two cargo oil tanks corresponding to two adjacent cargo oil main pipes are respectively located on two sides of a center of gravity of the ship.

6. The cargo transfer system according to claim 5, wherein the cargo main conduits and the cargo tanks are six in number and comprise first through sixth cargo main conduits and first through sixth cargo tanks, the first cargo main conduit communicating with the first cargo tank, the second cargo main conduit communicating with the fourth cargo tank, the third cargo main conduit communicating with the third cargo tank, the fourth cargo main conduit communicating with the fifth cargo tank, the fifth cargo main conduit communicating with the second cargo tank, and the sixth cargo main conduit communicating with the sixth cargo tank.

7. The cargo oil delivery system according to claim 5, wherein the cargo tank comprises a left tank and a right tank, the left tank and the right tank being symmetrically arranged about a centerline in the length direction of the vessel.

8. A method of using a cargo oil delivery system, comprising the steps of:

s10, providing at least two oil conveying hoses, at least two tee joints, at least four cargo oil main pipes and at least four cargo oil cabins;

s20, respectively connecting a second outlet end and a third outlet end of the three-way joint with two adjacent cargo oil main pipes, and connecting one oil conveying hose with a first outlet end of one three-way joint;

s30, conveying one kind of cargo oil into two cargo oil cabins from one oil conveying hose, and conveying the other kind of cargo oil into the other two cargo oil cabins from the other oil conveying hose;

or one cargo oil in two cargo oil tanks is output to one oil conveying hose, and the other cargo oil in the other two cargo oil tanks is output to the other oil conveying hose.

9. A ship comprising an oil transfer system according to any one of claims 4 to 7.

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