Multistage liquid cabin ventilation overflow system and ship

Abstract

The application discloses a multi-stage liquid cabin air-permeable overflow system and a ship, wherein the multi-stage liquid cabin air-permeable overflow system comprises air-permeable pipes on each liquid cabin, the air-permeable pipes of high-stage liquid cabins are communicated with the air-permeable pipes of low-stage or equal-stage liquid cabins through overflow pipes, check valves are arranged on the overflow pipes, and the last-stage liquid cabin in the multi-stage liquid cabin is a dirty liquid cabin. The air-permeable pipes are used to replace the overflow pipes, the space of the liquid cabin of the ship is effectively utilized, the space waste of the liquid cabin is avoided, the liquid cabin can be filled to the brim without risks, the number of pipeline of the liquid cabin is reduced, the weight of the ship body is reduced, the pipeline arrangement of the ship is optimized, the pipeline arrangement is more simple, the manufacturing cost of the ship is reduced, and the carrying capacity of the ship is increased.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a multi-stage liquid tank venting and overflow system and a ship. Background Technology

[0002] Ships typically contain multiple liquid tanks, categorized into different classes based on required cleanliness levels. Higher cleanliness requirements result in higher-class tanks (e.g., day tanks), while lower cleanliness requirements lead to lower-class tanks (e.g., sludge tanks). Ships often have multiple liquid tanks of varying classes. In existing technology, vent pipes and overflow pipes are installed on the top of each liquid tank for venting and overflow. Overflowing liquid usually flows into an overflow tank through the overflow pipe. To avoid overflow risks, liquid tanks are generally only filled to about 90%-95% of their volume, resulting in wasted storage space. For ships with multiple classes of liquid tanks, the numerous and complex vent and overflow pipes, along with the overflow tank layout, occupy ship space, increase manufacturing costs, and reduce the ship's carrying capacity. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this application provides a multi-stage liquid tank venting and overflow system and a vessel, thereby solving the technical problems of numerous pipelines, complex pipeline layout, and limited space on the vessel in existing multi-stage liquid tank venting and exhaust systems.

[0004] To achieve the aforementioned objectives, the technical solution provided in this application is as follows:

[0005] A multi-stage liquid tank venting and overflow system includes a vent pipe installed on each liquid tank. The vent pipe of the advanced liquid tank is connected to the vent pipe of the lower or higher-level liquid tank through an overflow pipe. Each overflow pipe is equipped with a check valve to prevent liquid in the lower-level liquid tank from overflowing into the advanced liquid tank.

[0006] In one embodiment, an overflow observation mirror is provided on the overflow pipe.

[0007] In one embodiment, the overflow observation mirror is disposed between the vent pipe of the advanced liquid compartment and the check valve.

[0008] In one embodiment, the installation height of the overflow pipe of the liquid tank is greater than the installation height of the overflow pipe of the lower liquid tank.

[0009] In one embodiment, the installation height of the overflow pipe decreases sequentially according to the decreasing class of the liquid tank to which the overflow pipe belongs.

[0010] In one implementation, the final liquid tank in a multi-stage liquid tank is a sludge tank.

[0011] This application also provides a vessel including the aforementioned multi-stage liquid tank venting and overflow system.

[0012] Based on the above technical solution, the present invention has achieved the following beneficial effects:

[0013] The multi-stage liquid tank venting and overflow system of this invention includes a vent pipe on each liquid tank. The vent pipes of higher-level liquid tanks are connected to the vent pipes of lower-level or higher-grade liquid tanks via overflow pipes. A check valve is installed on the overflow pipe. The final-level liquid tank in the multi-stage liquid tank system is a sludge tank. This invention utilizes vent pipes instead of overflow pipes, effectively utilizing the space of the ship's liquid tanks, avoiding wasted space, and allowing the tanks to be filled completely without risk. It also reduces the number of pipes in the liquid tanks, lightens the ship's weight, optimizes the ship's piping layout, simplifies the piping arrangement, reduces shipbuilding costs, and increases the ship's carrying capacity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the multi-stage liquid tank venting and overflow system in the embodiments of this application.

[0015] Reference numerals: 1. First day use compartment; 2. Second day use compartment; 3. Storage compartment; 4. Sedimentation compartment; 5. Sewage compartment; 6. Overflow observation mirror; 6-1. First overflow observation mirror; 6-2. Second overflow observation mirror; 6-3. Third overflow observation mirror; 6-4. Fourth overflow observation mirror; 7. Check valve; 7-1. First check valve; 7-2. Second check valve; 7-3. Third check valve; 7-4. Fourth check valve; 8. Vent pipe; 8-1. First vent pipe; 8-2. Second vent pipe; 8-3. Third vent pipe; 8-4. Fourth vent pipe; 8-5. Fifth vent pipe; 9. Overflow pipe; 9-1. First overflow pipe; 9-2. Second overflow pipe; 9-3. Third overflow pipe; 9-4. Fourth overflow pipe; Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0017] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0018] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0019] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0020] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0021] A multi-stage liquid tank venting and overflow system includes a vent pipe 8 installed on each liquid tank. The vent pipe 8 of the advanced liquid tank is connected to the vent pipe 8 of the lower or higher-level liquid tank through an overflow pipe 9. Each overflow pipe 9 is equipped with a check valve 7 to prevent liquid in the lower-level liquid tank from overflowing into the advanced liquid tank and contaminating the liquid in the advanced liquid tank.

[0022] To observe the actual overflow situation, an overflow observation mirror 6 is installed on the overflow pipe 8. The overflow observation mirror 6 is located between the vent pipe of the advanced liquid tank and the check valve 7.

[0023] like Figure 1 As shown, this embodiment uses a five-level liquid tank venting and overflow system as an example. The five levels of liquid tanks are: Day Use Tank 1 (Level 1), Day Use Tank 2 (Level 2), Storage Tank 3, Sedimentation Tank 4, and Wastewater Tank 5. The five levels of liquid tanks are classified according to their level as follows: Day Use Tank 1 ≥ Day Use Tank 2 > Storage Tank 3 > Sedimentation Tank 4 > Wastewater Tank 5. Day Use Tank 1 is defined as Level 5, Day Use Tank 2 as Level 4, Storage Tank 3 as Level 3, Sedimentation Tank 4 as Level 2, and Wastewater Tank 5 as Level 1. Among these, Sedimentation Tank 4 and Wastewater Tank 5 are non-use tanks. Sedimentation Tank 4 is used to settle impurities in the liquid, and Wastewater Tank 5 is used to store contaminated liquid.

[0024] The five-stage liquid tank venting and overflow system includes vent pipes 8 installed on each liquid tank. In this embodiment, the vent pipes 8 include a first vent pipe 8-1 installed on the first day use tank 1, a second vent pipe 8-2 installed on the second day use tank 2, a third vent pipe 8-3 installed on the storage tank 3, a fourth vent pipe 8-4 installed on the sedimentation tank 4, and a fifth vent pipe 8-5 installed on the waste liquid tank 5. The first vent pipe 8-1 and the second vent pipe 8-2 are connected through a first overflow pipe 9-1, the second vent pipe 8-2 and the third vent pipe 8-3 are connected through a second overflow pipe 9-2, the third vent pipe 8-3 and the fourth vent pipe 8-4 are connected through a third overflow pipe 9-3, and the fourth vent pipe 8-4 and the fifth vent pipe 8-5 are connected through a fourth overflow pipe 9-4.

[0025] A first overflow observation mirror 6-1 and a first check valve 7-1 are installed on the first overflow pipe 9-1. The first overflow observation mirror 6-1 is located between the first vent pipe 8-1 and the first check valve 7-1. The first overflow observation mirror 6-1 is used to observe the overflow situation of the first day use compartment 1. The first check valve 7-1 is used to prevent liquid in the second day use compartment 2 from overflowing into the first day use compartment 1 and contaminating the liquid in the first day use compartment 1. Similarly, a second overflow observation mirror 6-2 and a second check valve 7-2 are installed on the second overflow pipe 9-2, a third overflow observation mirror 6-3 and a third check valve 7-3 are installed on the third overflow pipe 9-3, and a fourth overflow observation mirror 6-4 and a fourth check valve 7-4 are installed on the fourth overflow pipe 9-4, thereby preventing liquid in the lower-level liquid compartment from overflowing into the higher-level liquid compartment.

[0026] When liquid overflows from the first day-use tank 1, it flows along the first vent pipe 8-1 and through the first overflow pipe 9-1 into the second day-use tank 2. When liquid overflows from the second day-use tank 2, it flows along the second vent pipe 8-2 and through the second overflow pipe 9-2 into the second day-use storage tank 3, without overflowing into the first day-use tank 1. When liquid overflows from other tanks, its flow direction is similar to the above, and it can only flow into the lower-level overflow tank. In this embodiment, the final overflow tank is the sludge tank 5, which eliminates the need for an overflow tank compared to the prior art, saving space on the ship.

[0027] To further prevent backflow of liquid, the installation height of the multiple overflow pipes 9 is as follows: first overflow pipe 9-1 ≥ second overflow pipe 9-2 > third overflow pipe 9-3 > fourth overflow pipe 9-4. In this embodiment, the installation heights of the first overflow pipe 9-1, second overflow pipe 9-2, third overflow pipe 9-3, and fourth overflow pipe 9-4 decrease sequentially.

[0028] This embodiment also provides a ship that includes the above-mentioned multi-stage liquid tank venting and overflow system.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A multi-stage liquid tank venting and overflow system, characterized in that, This includes a vent pipe installed on each liquid tank. The vent pipes of the higher-level liquid tanks are connected to the vent pipes of the lower-level liquid tanks via overflow pipes. Each overflow pipe is equipped with a check valve to prevent liquid from overflowing from the lower-level liquid tanks into the higher-level liquid tanks. The installation height of the overflow pipes of the higher-level liquid tanks is greater than that of the overflow pipes of the lower-level liquid tanks. The installation height of the overflow pipes decreases sequentially according to the decreasing level of the liquid tank to which the overflow pipe belongs. The final liquid tank in the multi-level liquid tank system is the sludge tank.

2. The multi-stage liquid tank venting and overflow system according to claim 1, characterized in that, An overflow observation mirror is installed on the overflow pipe.

3. The multi-stage liquid tank venting and overflow system according to claim 2, characterized in that, The overflow observation mirror is located between the vent pipe of the advanced liquid tank and the check valve.

4. A ship, characterized in that, Includes the multi-stage liquid tank venting and overflow system as described in any one of claims 1-3.

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