Ship constant weight test system, ship inclination test system and ship
By designing the side-side pick-up and reading container on the ship, the cost and inconvenience of reading draft values in the ship's weighting test and inclination test are solved, and the direct and accurate reading of draft values is achieved, reducing the test costs and risks, and improving the accuracy of test results.
Patent Information
- Application Number
- CN202421480068.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The prior art is costly and inconvenient to conduct ship weighting tests and tilt tests, especially when reading draft values, it is necessary to rent auxiliary water transport tools, and the manual reading error is large, which affects the accuracy of the test results.
A ship weighting test system is designed, including a side-side connection and reading container. By opening a side hole in the side wall of the ship and introducing seawater into the reading container, crew members can directly and accurately read the draft in the cabin, avoiding the cost and safety risks of using other auxiliary tools.
It realizes the direct and accurate reading of draft values under any state of the ship, reduces the test cost and operational risks, improves the accuracy of test results, and simplifies the operation process.
Smart Images
Figure CN222611359U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ship testing, in particular to a ship weight test system, a ship tilt test system and a ship. Background Art
[0002] After a ship is built, inclination and weighing tests are required to determine the ship's center of gravity and weight in order to determine its maximum cargo capacity and calculate its buoyancy under various loading conditions. The most critical step in the test is to read the ship's draft and heel value. The ship itself is equipped with a liquid level telemetry function, and the signal is connected to the ship's control room. However, the reliability and stability of liquid level telemetry are poor, making it difficult to obtain an accurate draft value. Shipowners or classification societies only recognize manual measurements during tests. In addition, after the ship is delivered and has been in operation for a period of time, the liquid level telemetry will have certain deviations, which will affect the ship's loading of the ship by the crew. At this time, manual draft readings are required to calibrate the liquid level telemetry.
[0003] Normally, ships are docked at the dock. During the weighing test, manual reading of the draft requires renting other auxiliary water transport tools (such as tugboats) to carry people to the outer gear of the ship for operation, and the rental cost is very high. Moreover, considering the fluctuation of sea water, the error of naked eye reading is large. It is difficult for shipowners, classification societies and shipyards to reach a consensus on the results during the weighing test, which affects the accuracy of the empty ship weight. During the inclination test, the weight needs to be moved in steps to read the ship's heel value. Due to the high accuracy requirements, it cannot be obtained by reading the draft. In the past, only special tooling (usually 3 sets of oil tanks) could be used. Before the test, it was necessary to ensure that there was enough space in the cargo hold, and the free swing of the cycloid could not be blocked in the height direction. The configuration requirements were high. Before and after the test, the oil tank needed to be moved in and out of the cargo hold. Due to its heavy weight, only large dock cranes could be used, which were costly and inconvenient to use. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a ship weighing test system, a ship tilting test system and a ship, which are used to solve the problems of high test cost and inconvenient operation when conducting weighing tests and tilting tests in the prior art.
[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a ship weight test system, including a side pipe and a reading container, the reading container is arranged in the cabin, and a side hole is opened on the side wall of the ship's side. One end of the side pipe is connected to the reading container, and the other end is arranged at the side hole. The end of the reading container away from the side pipe is connected to the air, the lowest point of the reading container is lower than the minimum draft depth of the ship, the highest point of the reading container is higher than the maximum draft depth of the ship, and the height of the side hole from the bottom of the ship is lower than the minimum draft depth of the ship.
[0006] Optionally, the ship weighing test system further comprises a sounding tube, which is connected to an end of the reading container away from the side pipe, and an end of the sounding tube away from the reading container is connected to the air.
[0007] Optionally, one end of the sounding pipe away from the side pipe extends to the deck of the ship.
[0008] Optionally, a side valve is provided on the side pipe to control the water inflow of the side pipe.
[0009] Optionally, the reading container is arranged in the cabin on a side close to the ship's side.
[0010] Optionally, at least one side wall of the reading container is a transparent side wall, the transparent side wall is provided on a side convenient for observation by the crew, and scale lines and scale values are provided on the transparent side wall, the scale values correspond to the scale lines one-to-one, and the scale values are the distances between the scale lines and the lowest point of the ship;
[0011] The ship's side is a double-layer structure, the reading container is arranged inside the ship's side and the transparent side wall protrudes from the inner side wall of the ship's side. Correspondingly, the side pipe is also arranged inside the ship's side.
[0012] Optionally, at least one group of the reading containers is provided, each group includes two reading containers, each group of the reading containers is located at the same height and is symmetrically arranged along a center line parallel to the length direction of the ship, and a plurality of the side holes and the side pipes are also provided to be connected to the reading containers accordingly.
[0013] A ship tilt test system based on the above-mentioned ship weighing test system, the ship tilt test system also includes a connecting pipe, each connecting pipe corresponds to a group of reading containers, and the two ends of the connecting pipe are respectively connected to the side connecting pipes corresponding to the two reading containers, so that the two reading containers and the connecting pipe form a connecting vessel structure.
[0014] Optionally, both ends of the connecting pipe are provided with connecting valves to control the connection between the reading containers.
[0015] A ship comprises the ship weight test system or the ship tilt test system described above.
[0016] In a ship weight determination test system of the present invention, by introducing seawater into the reading container, the crew can directly and accurately read the draft in any state of the ship, which avoids the cost and safety risks caused by using other auxiliary water transportation tools to read the draft, and can obtain more accurate draft data at the same time, and the operation is relatively simple.
[0017] In a ship inclination test system of the present invention, the change in the value of two reading containers can be used to calculate the change in the ship's heel, thereby completing the inclination test. A connecting pipe is provided on the basis of the ship's fixed weight test system, eliminating the need for additional tooling, resulting in a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the connection between a ship weight test system and a ship tilting test device according to an embodiment of the present invention;
[0019] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;
[0020] Figure 3 The figure is a schematic diagram of the positions of a ship weight test system and a ship tilting test device on a ship in one embodiment of the present invention. DETAILED DESCRIPTION
[0021] Refer to the following Figures 1 to 3 To describe a ship weight test system, a ship tilt test system and a ship of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.
[0022] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0023] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0024] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.
[0025] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a ship weight test system, comprising a side pipe 1 and a reading container 2. The reading container 2 is disposed within the ship's cabin 7. A side hole 11 is provided on the side wall of the ship's side 5. One end of the side pipe 1 is connected to the reading container 2, and the other end is disposed at the side hole 11. The end of the reading container 2, remote from the side pipe 1, is in communication with the air. The lowest point of the reading container 2 is below the ship's minimum draft, while the highest point of the reading container 2 is above the ship's maximum draft. The height of the side hole 11 from the bottom of the ship is lower than the ship's minimum draft.
[0026] Seawater enters the side pipe 1 and then the reading container 2 through the side port 11. Since the end of the reading container 2, remote from the side pipe 1, is open to the air, the air pressure inside the reading container 2 is consistent with the outside air pressure, thus keeping the liquid level in the reading container 2 at sea level. The side port 11 is positioned below the ship's minimum draft depth, allowing seawater to enter the reading container 2 through the port 11 even at minimum draft. The lowest point of the reading container 2 is below the ship's minimum draft depth, while the highest point is above the ship's maximum draft depth. The reading container 2 allows the ship's draft to be determined regardless of its minimum or maximum draft. The reading container 2 is located within the cabin 7, allowing crew members to read the draft directly from within the cabin 7. By introducing seawater into the reading container 2, crew members can directly and accurately read the draft regardless of the ship's state. This avoids the cost and safety risks associated with using other auxiliary water transportation devices, while providing more accurate draft data and simplifying operation.
[0027] Furthermore, one of the side walls of the reading container 2 is transparent. Scale lines and scale values are provided on the transparent side wall. The scale values correspond one-to-one with the scale lines, and the scale value is the distance from the scale line to the lowest point of the vessel. The transparent side wall is provided on a side that is convenient for crew observation.
[0028] Of course, all side walls of the reading container 2 can be set as transparent side walls. Optionally, the reading container 2 is a cylindrical structure. In addition, the reading container 2 can also directly reflect the reading, for example, using a liquid level gauge, without the need for manual reading.
[0029] Furthermore, the ship's side has a double-layer structure, with the reading container positioned inside the ship's side, and the transparent sidewall protruding from the inner sidewall. Correspondingly, the side pipe is also positioned inside the ship's side. By placing the reading container and the side pipe inside the ship's side, cabin space is reduced. Furthermore, the transparent sidewall protruding from the inner sidewall facilitates readings by the crew. Alternatively, the inner sidewall can be made transparent, allowing readings from the reading container inside the ship's side.
[0030] Further, refer to Figure 1 The reading container 2 is arranged in the cabin 7 on the side close to the ship's side 5 to reduce the length of the side pipe 1.
[0031] Further, refer to Figure 2 A side valve 21 is installed on the side pipe 1 to control the amount of water entering the side pipe 1. Initially, the side valve 21 is fully open to ensure that seawater quickly enters the reading container 2. After the seawater in the reading container 2 stabilizes, the side valve 21 is used to reduce the flow of seawater. This ensures that the liquid level in the reading container 2 remains relatively stable even when the external water surface fluctuates significantly, making it easier for the crew to read the level.
[0032] Further, refer to Figure 1 and Figure 2 The ship weighing test system also includes a sounding tube 3, which is connected to the end of the reading container 2 away from the side pipe 1. The end of the sounding tube 3 away from the reading container 2 is open to the air. A manual depth gauge can also be used to measure the liquid level in the reading container 2 through the sounding air pipe.
[0033] Of course, the sounding pipe can also be directly connected to the side pipe without a reading container, and the draft depth can be obtained by directly measuring the liquid level in the sounding pipe.
[0034] Further, refer to Figure 1 The end of the sounding pipe 3 away from the side pipe 1 extends to the ship deck 6, and the crew can directly use the sounding ruler to measure on the deck 6, making the operation more convenient.
[0035] Furthermore, two reading containers 2 are provided. Accordingly, two side ports 11 are provided, and two side pipes 1 are also provided. The two reading containers 2 are located at the same height and symmetrically arranged along a centerline parallel to the length of the vessel. By providing two reading containers 2, two sets of data can be obtained, thereby enhancing the accuracy of the test.
[0036] Similarly, multiple groups of reading containers 2 can be provided, each group including two reading containers 2, and each group of reading containers 2 is located at the same height and symmetrically arranged along a center line parallel to the length direction of the ship.
[0037] The present invention also provides a ship tilt test system, such as Figure 1 and Figure 2 As shown, the ship weight test system in the above embodiment is based on the ship weight test system. The ship tilt test system also includes a connecting pipe 4, and each connecting pipe 4 corresponds to a group of reading containers 2. The two ends of the connecting pipe 4 are respectively connected to the side pipes 1 corresponding to the two reading containers 2, so that the two reading containers 2 and the connecting pipe 4 form a connecting vessel structure. When conducting an inclination test, the side valve 21 is closed after seawater enters the reading container 2, and it is ensured that each group of reading containers 2 is in a connected state. As the heavy objects on the ship move, the heel of the ship will change. The heel change of the ship is calculated by the change in the values in the two reading containers 2, thereby completing the inclination test. The connecting pipe 4 is provided on the basis of the ship weight test system to avoid adding additional tooling, and the structure is simple and easy to operate. Optionally, the connecting pipe 4 can be made of a portable soft plastic tube, which is convenient for storage after the test is completed.
[0038] Furthermore, connecting valves 41 are provided at both ends of the connecting pipe 4 to control the on-off of the reading container 2 . The connecting valve 41 is closed when a fixed weight test is performed, and is opened when a tilt test is performed.
[0039] The present invention also provides a ship, such as Figure 3 As shown, the ship can be equipped with only the ship weight test system in the above embodiment to perform the ship weight test. Alternatively, the ship tilt test system in the above embodiment can be equipped to perform both the ship weight test and the ship tilt test.
[0040] Specifically, refer to Figure 3 The ship includes a bow 81, a midship 82 and a stern 83. Side holes 11 can be opened on the side walls of the ship's side 5 in the bow 81, the midship 82 and the stern 83 areas respectively, and a ship weight test system and a ship tilting test device can be set at the side holes 11.
[0041] Optionally, the side hole 11 of the bow 81 is located at a height position of half the minimum draft of the bow 81 and 1 / 20-1 / 40 times the total ship length away from the bow.
[0042] Optionally, the side hole 11 of the midship 82 is located at half of the minimum draft of the midship 82 and 1 / 40 times the total ship length away from the midship.
[0043] Optionally, the side hole 11 of the stern portion 83 is located at half of the minimum draft of the stern portion 83 and is 1 / 10-1 / 20 times the total ship length away from the stern.
[0044] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.
Claims
1. A ship weight test system, characterized in that: It comprises a side pipe and a reading container, wherein the reading container is arranged in the cabin, a side hole is opened on the side wall of the ship's side, one end of the side pipe is connected with the reading container, and the other end is arranged at the side hole, one end of the reading container away from the side pipe is connected with the air, the lowest point of the reading container is lower than the minimum draft of the ship, the highest point of the reading container is higher than the maximum draft of the ship, and the height of the side hole from the bottom of the ship is lower than the minimum draft of the ship.
2. The ship weight test system according to claim 1, characterized in that: The ship weighing test system further comprises a sounding tube, which is connected to an end of the reading container away from the side pipe, and an end of the sounding tube away from the reading container is connected to the air.
3. The ship weight test system according to claim 2, characterized in that: One end of the sounding pipe away from the side pipe extends to the deck of the ship.
4. The ship weight test system according to claim 1, characterized in that: The side pipe is provided with a side valve to control the water inflow of the side pipe.
5. The ship weight test system according to claim 1, characterized in that: The reading container is arranged in the cabin at one side close to the ship's side.
6. The ship weight test system according to claim 1, characterized in that: At least one side wall of the reading container is a transparent side wall, the transparent side wall is arranged on a side for easy observation by the crew, and scale lines and scale values are arranged on the transparent side wall, the scale values correspond to the scale lines one by one, and the scale values are the distances between the scale lines and the lowest point of the ship; The ship's side is a double-layer structure, the reading container is arranged inside the ship's side and the transparent side wall protrudes from the inner side wall of the ship's side, and correspondingly, the side pipe is also arranged inside the ship's side.
7. The ship weight test system according to claim 1, characterized in that: The reading containers are provided with at least one group, each group includes two reading containers, each group of the reading containers are located at the same height and are symmetrically arranged along a center line parallel to the length direction of the ship, and a plurality of the side holes and the side pipes are also provided to be correspondingly connected with the reading containers.
8. A ship tilting test system based on the ship weight test system according to claim 7, characterized in that: The ship tilt test system also includes a connecting pipe, each connecting pipe corresponds to a group of reading containers, and both ends of the connecting pipe are respectively connected to the side pipes corresponding to the two reading containers, so that the two reading containers and the connecting pipe form a connecting vessel structure.
9. The ship tilt test system according to claim 8, characterized in that: Both ends of the connecting pipe are provided with connecting valves to control the connection and disconnection between the reading containers.
10. A ship, characterized in that: It comprises a ship weighing test system as described in any one of claims 1-7 or a ship tilting test system as described in any one of claims 8-9.