Pipeline structure of cabin anti-backwater drainage system

Abstract

The invention relates to a pipeline structure of a cabin anti-backwater drainage system. The pipeline structure comprises a plurality of drainage units arranged in the length direction of a ship; the drainage unit comprises a horizontal branch header pipe arranged below a residential area deck in the transverse direction of the ship, and the upper portion of the horizontal branch header pipe is connected with a plurality of residential area drainage devices or drainage port connecting pipes. The two ends of each horizontal branch header pipe extend to the chord side and communicate with the corresponding vertical branch pipes, and a pair of vertical branch pipes are formed on the two sides of the same horizontal branch header pipe. The vertical branch pipes extend downwards to the position close to the ship bottom or the lower layer cargo hold and are communicated through a horizontal communicating pipe. The positions, not higher than the horizontal communicating pipes, of the vertical branch pipes of the adjacent drainage units are communicated through a horizontal header pipe; one vertical branch pipe is selected from all the vertical branch pipes and extends downwards into a cabin or external seawater. The ship residential area domestic wastewater drainage smoothness is higher, and wastewater gathering in a horizontal pipeline is reduced; the water return probability of each cabin in the residential area is obviously reduced or even completely eradicated; and the dwelling experience of sailors is improved.

Description

Technical Field

[0001] This invention relates to a ship cabin drainage system pipeline structure, specifically a ship cabin backflow prevention drainage system pipeline structure, belonging to the field of ship cabin domestic water drainage technology. Background Technology

[0002] The cabin drainage system is crucial for maintaining the normal living conditions of the crew. Unlike other ship types, car carriers typically have their living quarters located on the top or second-to-top decks, directly below which are large vehicle compartments, making riser installation inconvenient. For cabin drainage systems, this usually requires long horizontal pipes extending to the sides or similar vertical bulkheads, with risers running along the structural bulkheads to drain wastewater down to storage tanks in the engine room or overboard from the bottom. During normal navigation, due to variable sea conditions, the ship often lists to port or starboard, causing wastewater on the other side to accumulate in the horizontal pipes, making it difficult to drain by gravity. Even worse, wastewater from higher-level cabins may backflow into lower-level cabins, significantly impacting the crew's living experience. Furthermore, the larger the car carrier and the longer the horizontal pipes, the greater the probability of backflow and the more severe the situation. Summary of the Invention

[0003] The purpose of this invention is to provide a pipeline structure for a ship's anti-backflow drainage system, which solves the technical problems of poor drainage, high probability of backflow, and impact on the crew's living experience in existing ship drainage designs.

[0004] The present invention adopts the following technical solution:

[0005] A ship's cabin backflow prevention drainage system piping structure includes multiple drainage units arranged along the ship's length; each drainage unit includes a horizontal main pipe 1 arranged transversely along the ship below the living area deck, the upper part of which is connected to multiple living area drainage devices or drainage outlets; both ends of the horizontal main pipe 1 extend to the chord side and communicate with vertical branch pipes 3, forming a pair of vertical branch pipes 3 on both sides of the same horizontal main pipe 1; the pair of vertical branch pipes 3 extend downward to a position near the bottom of the ship or the lower cargo hold, and are connected by a horizontal connecting pipe 2; the vertical branch pipes 3 of adjacent drainage units are connected by a horizontal main pipe 6 at a position not higher than the horizontal connecting pipe 2; one of the vertical branch pipes 3 is selected and extends downward into the external seawater.

[0006] In this technical solution, the horizontal branch pipe 4 is extended to both ends to the two chord sides, so that drainage can be discharged to the port chord side or the starboard side within the entire width of the ship (therefore different from single-sided drainage). When the ship rolls during navigation, there will be no "backflow" caused by the inability to discharge water in a short time, which can improve the crew's living experience.

[0007] Preferably, each vertical branch pipe 3 is provided with a vent pipe 4 at its upper end.

[0008] Preferably, a drainage unit has several horizontal branch pipes 1 corresponding to different deck layers.

[0009] Furthermore, there is a height difference of 3-6m between the horizontal connecting pipe 2 and the lowest horizontal branch pipe 1. Because of the height difference of 25-40m, according to the principle of the locator, when the ship rolls, some water may accumulate in the vertical branch pipe 3 and cannot be discharged in time, but it will not affect the drainage of the horizontal branch pipe 1, thus completely eliminating the situation of "backflow".

[0010] Preferably, the horizontal connecting pipe 2 and the horizontal main pipe 6 are connected to the vertical main pipe 7 at the same height, or the height of the horizontal main pipe 6 is lower than that of the horizontal connecting pipe 2.

[0011] Preferably, the top of the vent pipe 4 has an elbow.

[0012] Preferably, it is used in car carriers.

[0013] The beneficial effects of this invention are: smoother drainage of domestic wastewater in ship living areas, reducing wastewater accumulation in horizontal pipes; significantly reduced or even eliminated backflow probability in various cabins of the living area; and improved living experience for crew members. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the pipeline structure of the anti-backflow drainage system for the ship's cabin according to the present invention.

[0015] In the diagram, 1. Horizontal branch main pipe, 2. Horizontal connecting pipe, 3. Vertical branch pipe, 4. Vent pipe, 5. Drainage equipment or drain outlet connection in residential area, 6. Horizontal main pipe, 7. Vertical main pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] The specific arrangement of the present invention is as follows: Figure 1 As shown. In this embodiment, the selected vessel is a car carrier, which has a higher living area and a lower cargo hold.

[0018] Figure 1 The ship's cabin is not shown in the drawing. However, the drainage equipment or drainage pipe interface 5 in the living area is actually located in the living area cabin.

[0019] The living quarters are divided into several areas. The drainage equipment or outlets of the nearest cabins are collected on the port and starboard sides into a horizontal main pipe 1 (corresponding to 1 drainage unit). Then, the pipes are led to the sides or the nearest vertical bulkhead in both port and starboard directions, and converted into vertical risers 3 to continue downward. At a lower position (selecting a non-living area, such as a cargo hold or a position near the bottom of the ship), port and starboard horizontal connecting pipes 2 are set up on a certain floor. They are combined into a vertical main pipe 7 on the port or starboard side to discharge domestic wastewater downward to the storage tank located in the ship's engine room or to the outside of the ship from the bottom.

[0020] Considering the possibility of listing to port or starboard during navigation, in practice, domestic wastewater on the same horizontal branch main 1 may flow to one side. Therefore, the size of horizontal branch main 1 should be appropriately increased based on the number of connected drainage devices and outlets to avoid drainage problems caused by insufficient size when drainage is originally intended for one side only. Furthermore, appropriately sized vent pipes 4 should be installed at both ends of horizontal branch main 1 to avoid the influence of negative pressure and further improve drainage.

[0021] Specifically, see [link to relevant document] Figure 1 A ship's cabin backflow prevention drainage system piping structure includes multiple drainage units arranged along the ship's length; each drainage unit includes a horizontal main pipe 1 arranged transversely along the ship below the living area deck, the upper part of which is connected to multiple living area drainage devices or drainage outlets; both ends of the horizontal main pipe 1 extend to the chord side and communicate with vertical branch pipes 3, forming a pair of vertical branch pipes 3 on both sides of the same horizontal main pipe 1; the pair of vertical branch pipes 3 extend downward to a position near the bottom of the ship or the lower cargo hold, and are connected by a horizontal connecting pipe 2; the vertical branch pipes 3 of adjacent drainage units are connected by a horizontal main pipe 6 at a position not higher than the horizontal connecting pipe 2; one of the vertical branch pipes 3 is selected and extends downward into the external seawater.

[0022] Because the horizontal branch pipe 4 extends to both ends of the two chords, drainage can be discharged to either the port chord or the starboard chord across the entire width of the ship (therefore, unlike single-sided drainage), and when the ship rolls during navigation, there will be no "backflow" due to the inability to discharge water in a short time, which can improve the crew's living experience.

[0023] Preferably, each vertical branch pipe 3 is provided with a vent pipe 4 at its upper end.

[0024] In this embodiment, a drainage unit has several horizontal branch pipes 1 corresponding to different deck levels. It should be noted that only one horizontal branch pipe 1 is shown in the attached drawings for a single drainage unit, but in reality, multiple horizontal branch pipes 1 can be provided according to needs and the floor height of the living area.

[0025] In this embodiment, there is a height difference of 25-40m between the horizontal connecting pipe 2 and the lowest horizontal branch pipe 1. Because of the height difference of 3-6m, according to the principle of the locator, when the ship rolls, some water may accumulate in the vertical branch pipe 3 and cannot be discharged in time, but it will not affect the drainage of the horizontal branch pipe 1, thus completely eliminating the situation of "backflow".

[0026] In this embodiment, the horizontal connecting pipe 2 and the horizontal main pipe 6 are connected to the vertical main pipe 7 at the same height, or the height of the horizontal main pipe 6 is lower than that of the horizontal connecting pipe 2. Figure 1 The image shows the situation at the same height.

[0027] In this embodiment, the vent pipe 4 has an elbow at its top. The function of the vent pipe 4 is to remove the influence of negative pressure and further improve the smoothness of drainage.

[0028] This invention improves the drainage of domestic wastewater in ship living areas, reducing wastewater accumulation in horizontal pipes; significantly reduces or even eliminates the probability of backflow in various cabins of the living area; and improves the living experience for crew members.

[0029] In this invention, it should be noted that a bidirectional horizontal main branch pipe is provided below the residential area, allowing bidirectional flow to the port and starboard sides; the bidirectional horizontal main branch pipe is appropriately large in size to accommodate the unilateral drainage of all connected drainage equipment or outlets; a horizontal connecting pipe is provided on a lower deck to merge the various branch pipes into a main pipe; and vent pipes of appropriate size are provided at both ends of the bidirectional horizontal main branch pipe.

[0030] This invention improves the drainage of domestic wastewater in living areas, reduces the accumulation of wastewater in horizontal pipes, significantly reduces or even eliminates the probability of backflow in various cabins in living areas, and improves the living experience of crew members.

[0031] The above are preferred embodiments of the present invention. Those skilled in the art can make various modifications or improvements based on these embodiments. Without departing from the overall concept of the present invention, such modifications or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A pipe structure of a bilge water return prevention drainage system for a ship cabin, characterized in that: it comprises a plurality of drainage units arranged along the length of the ship; each of the drainage units comprises a horizontal branch main pipe (1) arranged below the living quarter deck in the transverse direction of the ship, the upper part of the horizontal branch main pipe (1) is connected with a plurality of living quarter drainage devices or drainage port connecting pipes; the horizontal branch main pipe (1) extends to the chord side at both ends and communicates with a vertical branch pipe (3), forming a pair of vertical branch pipes (3) on both sides of the same horizontal branch main pipe (1); the pair of vertical branch pipes (3) extend downward to a position close to the ship bottom or lower cargo hold and communicate through a horizontal communication pipe (2); the vertical branch pipes (3) of adjacent drainage units are communicated through a horizontal main pipe (6) at a position not higher than the horizontal communication pipe (2); one of all the vertical branch pipes (3) is selected to extend downward to the engine room or external seawater. The upper end of each vertical branch pipe (3) is provided with an air breather pipe (4). In one drainage unit, there are a plurality of horizontal branch main pipes (1) corresponding to different deck layers. The horizontal communication pipe (2) and the lowermost horizontal branch main pipe (1) have a height difference of 3-6 m. The horizontal communication pipe (2) and the horizontal main pipe (6) are connected with a vertical main pipe (7) at the same height, or the height of the horizontal main pipe (6) is lower than that of the horizontal communication pipe (2). The top of the air breather pipe (4) has an elbow. It is applied to a car carrier.

2. The bilge return prevention drainage system piping arrangement of claim 1, wherein: ​ 3. The bilge drainage system piping arrangement of claim 1, wherein: ​ 4. The bilge return prevention drainage system piping arrangement of claim 3, wherein: ​ 5. The bilge drainage system piping arrangement of claim 1, wherein: ​ 6. The bilge drainage system piping arrangement of claim 1, wherein: ​ 7. The bilge drainage system piping arrangement of claim 1, wherein: ​

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