Foot peak structure
By setting up dry cabins and communicating parts at the bottom of the bow cabin, the inconvenience and high cost of the bow cabin structure in maintenance and preventing water accumulation is solved, and the effect of convenient maintenance and no water accumulation is achieved, while reducing costs.
Patent Information
- Application Number
- CN202420107820.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The existing bow cabin structure has inconvenience and high cost in maintaining and preventing water accumulation, especially in ships where adjacent dry zones cannot be established or extended to the anti-collision bulkhead.
A bow-point cabin structure is designed, in which a dry cabin is provided at the bottom of the bow-point cabin. The dry cabin divides the space at the bottom of the bow-point cabin into two parts, and a ballast water valve and communication piece are installed in the dry cabin to ensure that the ballast water can connect to the left and right sides, avoid water accumulation, and provide a convenient maintenance method.
It realizes convenient maintenance of the ballast valve of the bow tip compartment, avoids the water accumulation problem on the one side of the bow tip compartment, and reduces the risk of increasing costs.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of ships, in particular to a bow tank structure. Background Art
[0002] The forepeak tank is a small tank located in front of the collision bulkhead of a ship. It usually contains ballast water to help balance the ship, that is, to adjust the draft difference between the bow and the stern. It can prevent water from entering the bow due to damage and spreading to other compartments. This type of tank is often used as a ballast water tank to adjust the ship's trim. Unlike other ballast tanks, the forepeak tank is usually located in front of the collision bulkhead of the ship, so the ballast pipe of the forepeak tank needs to pass through the collision bulkhead. For safety reasons, Resolution MSC.421(98) has strict requirements for pipes and valves passing through the collision bulkhead: no more than one pipe shall pass through the collision bulkhead, and the pipe shall be equipped with a spiral valve that can be operated above the freeboard deck, and the valve body shall be located at the collision bulkhead inside the forepeak tank. In order to pump out as much ballast water as possible, the ballast water suction port, ballast water pipe and ballast valve of the ballast tank should usually be as close to the bottom of the ballast tank as possible. The forepeak tank ballast valve can usually be divided into submerged and non-submerged types according to its location. The submerged type means that the valve is immersed in water most of the time, the valve has a relatively high waterproof grade, and the crew can only reach the valve for inspection and maintenance after the water in the tank is emptied. If the non-submerged type is adopted, the valve needs to be arranged in the dry area. Therefore, the original dry area in front of the collision bulkhead can be used, or an additional dry area can be added to arrange the non-submerged ballast valve. There are many ballast tanks on the ship. For the convenience of operation, ballast valves usually use remote control valves. Remote control valves are usually electro-hydraulic or hydraulic. The price of ballast remote control valves is usually high. For ships that are restricted by certain factors and cannot have an adjacent dry area behind the collision bulkhead, or the dry area cannot extend to the collision bulkhead, there are usually 3 design schemes for their forepeak tank ballast valves:
[0003] Solution 1: The forepeak tank ballast valve is arranged in the forepeak tank in front of the collision bulkhead, using one submerged ballast remote control valve and one suction port; the advantage is that there will be no water accumulation on one side of the forepeak tank, but the disadvantage is that the forepeak tank valve can only be inspected and maintained after the ballast water in the forepeak tank is drained, which brings inconvenience to the crew.
[0004] Option 2: Add a dry area outside the forepeak tank in front of the collision bulkhead, or use the existing dry area in front of the collision bulkhead, and arrange the forepeak tank ballast valve in the dry area, using a non-submerged ballast remote control valve and a suction port. The advantage is that the forepeak tank valve can be repaired and maintained without emptying the forepeak tank, which is more convenient. The disadvantage is that the forepeak tank is separated by a dry tank, and it is easy for water to accumulate on one side of the forepeak tank that cannot be drained.
[0005] Solution 3: On the basis of Solution 2, one or more additional suction ports are added, and the suction ports are arranged in areas where water may accumulate. To avoid the phenomenon of empty suction caused by multiple suction ports, each suction port should be equipped with a remote control valve for easy control. The advantage is that the forepeak tank valve can be inspected and maintained without emptying the forepeak tank, which is more convenient, and there will be no water accumulation on one side of the forepeak tank. The disadvantage is that the additional suction ports and remote control valves increase the construction and maintenance costs. Utility Model Content
[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a forepeak tank structure which, under the premise of meeting the relevant requirements of the specifications, not only facilitates the crew's maintenance of the forepeak tank remote control ballast valve, but also achieves the purpose of reducing or avoiding water accumulation in the forepeak tank, and the additional cost is relatively low.
[0007] The purpose of the utility model is achieved through the following technical solutions: a forepeak tank structure, a dry tank is provided at the bottom of the forepeak tank, the dry tank divides the bottom space of the forepeak tank into two parts, a ballast water valve is provided in the dry tank, one end of the ballast water valve is connected to the forepeak tank through a water pipe, and the other end is connected to a ballast water regulating water pump located in the rear cabin of the forepeak tank, and a connecting piece is provided at the bottom of the dry tank to connect the ballast water in the left and right spaces at the bottom of the forepeak tank;
[0008] The ballast water pipe is provided with a ballast water valve, which is arranged at the bottom of the dry tank;
[0009] A connecting piece is provided at the bottom of the dry tank, which can connect the ballast water on the left and right sides of the dry tank.
[0010] Furthermore, the communication facility is a hollow tube connected left and right.
[0011] Furthermore, the hollow tube is a steel tube.
[0012] Furthermore, the communication facility is a water flow communication hole.
[0013] Furthermore, the forepeak tank ballast valve is a remotely controlled ballast valve, which is equipped with a manually controlled fixed pump group, and the manually controlled fixed pump group is arranged on the upper clamping plate outside the forepeak tank.
[0014] The utility model has the following advantages:
[0015] 1) Inspection and maintenance of the bow tank ballast valve becomes more convenient;
[0016] 2) There will be no accumulation of water in the forepeak tank that cannot be pumped out;
[0017] 3) Since no remote control valve is added, the additional cost of the solution is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A top view of the forepeak tank structure of the present application;
[0019] Figure 2 This is a longitudinal sectional front view of the forepeak tank structure of the present application;
[0020] Figure 3 This is an enlarged schematic diagram of a structural solution for configuring steel pipes as interconnecting facilities;
[0021] Figure 4 It is an enlarged schematic diagram of a structural scheme for configuring water holes as interconnection facilities;
[0022] Figure 5 It is the top view and longitudinal section elevation of the peak tank structure of Scheme 1;
[0023] Figure 6 It is the top view and longitudinal section elevation of the mitral tank structure of the scheme;
[0024] Figure 7 It is the top view and longitudinal section elevation of the tri-peak tank structure of the scheme;
[0025] In the figure, 1 is the bow tank, 2 is the dry tank, 3 is the ballast pipe suction port, 4 is the ballast water valve, 5 is the ballast water pipe, 6 is the connecting piece, 7 is other liquid tanks, 8 is the boatswain's storage room, 9 is the manually controlled fixed pump group, 10 is the water flow connecting hole, and 11 is the hollow pipe. DETAILED DESCRIPTION
[0026] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.
[0027] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0028] like Figure 1 As shown, a forepeak tank structure is provided with a dry tank at the bottom of the forepeak tank, the dry tank divides the bottom space of the forepeak tank into two parts, a ballast water valve is provided in the dry tank, one end of the ballast water valve is connected to the forepeak tank through a ballast water pipe, and the other end is connected to a ballast water regulating water pump located in the rear cabin of the forepeak tank, and a connecting piece is provided at the bottom of the dry tank to connect the ballast water in the left and right spaces at the bottom of the forepeak tank. The ballast water valve is arranged in the dry tank, so that the ballast water valve can be inspected and maintained without emptying the forepeak tank, which is more convenient.
[0029] refer to Figure 3 In one embodiment of this embodiment, the connecting facility is a steel pipe connecting left and right.
[0030] refer to Figure 4In another embodiment of this embodiment, the communication facility is a water flow communication hole.
[0031] refer to Figure 2 In this embodiment, the ballast water valve is a remote-controlled ballast valve, and its remote control device is a manually controlled fixed pump group, which is arranged on the upper clamping plate outside the bow tank to facilitate sailor operation.
[0032] One implementation method of this embodiment is: when it is necessary to drain water from the forepeak tank, the sailor goes to the upper deck and opens the forepeak tank ballast water valve by manually controlling the fixed pump group, and the ballast water flows from the forepeak tank to the rear cabin through the ballast water suction port and the forepeak tank ballast water pipe. Because there is a connecting arrangement under the dry tank, there will be no problem of water accumulation on one side of the forepeak tank.
[0033] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used for various other preferred combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A bow tank structure, characterized in that: A dry tank is provided at the bottom of the forepeak tank, and the dry tank divides the bottom space of the forepeak tank into two parts, a left part and a right part. A ballast water valve is provided in the dry tank, one end of the ballast water valve is connected to the forepeak tank through a ballast water pipe, and the other end is connected to a ballast water regulating pump located in the rear cabin of the forepeak tank. A connecting piece is provided at the bottom of the dry tank to connect the ballast water in the left and right spaces at the bottom of the forepeak tank.
2. A bow tank structure according to claim 1, characterized in that: The connecting piece is a hollow tube connected to the left and right sides.
3. A bow tank structure according to claim 2, characterized in that: The hollow tube is a steel tube.
4. A bow tank structure according to claim 1, characterized in that: The connecting piece is a water flow connecting hole.
5. The forepeak tank structure according to claim 1, characterized in that: The ballast water valve is a remote-controlled ballast valve, which is configured and connected to a manually controlled fixed pump group, and the manually controlled fixed pump group is arranged on the upper clamping plate outside the bow tank.