A marine sewage buffer throttling device

Abstract

This utility model discloses a ship sewage buffer and throttling device, including an aeration chamber, a ventilation pipe and a sewage inlet pipe connected to the top of the aeration chamber, a drain pipe inside the aeration chamber, an overflow port on the drain pipe, and the bottom end of the drain pipe extending out of the aeration chamber. Using this ship sewage buffer and throttling device, the cost is low, the overflow rate is avoided, and the sewage treatment process is guaranteed to proceed normally.

Description

Technical Field

[0001] This utility model belongs to the field of marine technology, specifically, it relates to a marine sewage buffer and throttling device. Background Technology

[0002] Currently on ships, sewage, oily water, or grey water needs to be mixed with activated sludge in the aeration chamber of the sewage treatment plant. Microorganisms decompose pollutants in the sewage into inorganic substances such as carbon dioxide and water under the oxygen supply of the blower. The sewage needs to be aerated in the aeration chamber for 4-8 hours and then enter the sedimentation tank through the overflow method. However, the current overflow outlets are set with a single number. When the liquid level in the aeration chamber is high, the overflow water velocity will be too fast, which will inevitably cause the sludge in the sedimentation tank to be carried away. Furthermore, it is impossible to filter out scum and activated sludge, which will affect the normal decomposition process of pollutants and the sedimentation treatment process in the sedimentation tank.

[0003] Utility model patent CN220616156U, published on March 19, 2024, discloses a shipboard sewage treatment system. The system includes a sewage collection vessel for collecting sewage from other vessels, several transfer and storage tanks located on the shore, and a sewage treatment unit. The sewage collection vessel is equipped with a sewage pumping module and several sewage tanks. One end of the sewage pumping module is connected to a sewage tank, and the other end is detachably connected to a transfer and storage tank. The sewage tanks are interconnected via overflow pipes. The transfer and storage tanks are connected to the sewage treatment unit. However, this shipboard sewage treatment system does not solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a low-cost ship sewage buffer and throttling device that avoids excessive overflow velocity and ensures the normal operation of the sewage treatment process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The ship's sewage buffer and throttling device includes an aeration chamber, with a ventilation pipe and a sewage inlet pipe connected to the top of the aeration chamber. An overflow pipe is provided inside the aeration chamber, with an overflow port on the overflow pipe. A drain pipe is connected to the bottom of the overflow pipe, and the drain pipe is located outside the aeration chamber.

[0007] The top of the overflow pipe is closed, the overflow pipe is vertically arranged, and the overflow ports are evenly spaced.

[0008] An eyepiece is provided on the side of the aeration chamber. The eyepiece is vertically positioned and its two ends are connected to the interior of the aeration chamber.

[0009] The aeration chamber is also equipped with a flushing pipe, which is connected to a nozzle. The aeration chamber is also equipped with an interface, and one end of the flushing pipe is connected to the interface.

[0010] A sampler is also connected to the bottom of the aeration chamber. The bottom of the sampler is connected to a drain pipe, and a drain valve is connected to the sampler.

[0011] A manhole cover is also provided on one side of the aeration chamber.

[0012] The flushing pipe is annular, and the nozzles are evenly distributed at the bottom of the flushing pipe.

[0013] The technical advantages of this utility model are as follows: The ship sewage buffer and throttling device of this utility model has a simple structure and low cost. By properly setting the overflow pipe and overflow port, it avoids the adverse effects caused by excessively fast overflow water velocity in the aeration chamber, ensuring the normal operation of the sewage treatment process. The flushing pipe enables effective flushing of the aeration chamber. It is also equipped with an eyepiece, sampler and manhole cover to meet the requirements of observation, sampling and maintenance of the device. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is the front view of the ship sewage buffer and throttling device of this utility model;

[0016] Figure 2 This is a side view of the ship sewage buffer and throttling device of this utility model.

[0017] Figure 3 This is a schematic diagram of the flushing tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the drainage pipe of this utility model.

[0019] The following are marked in the diagram: 1. Aeration chamber; 2. Ventilation pipe; 3. Sewage inlet pipe; 4. Overflow pipe; 5. Overflow outlet; 6. Drain pipe; 7. Eyepiece; 8. Flushing pipe; 9. Nozzle; 10. Interface; 11. Sampler; 12. Drain valve; 13. Manhole cover. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0021] like Figure 1As shown, the ship's sewage buffer and throttling device includes an aeration chamber 1. The top of the aeration chamber 1 is connected to a ventilation pipe 2 and a sewage inlet pipe 3. An overflow pipe 4 is provided inside the aeration chamber 1. An overflow port 5 is provided on the overflow pipe 4. A drain pipe 6 is connected to the bottom of the overflow pipe 4. The drain pipe 6 is located outside the aeration chamber 1.

[0022] In the above structure, ventilation pipe 2 is used to balance the air pressure inside the aeration chamber 1, ensuring that sewage can smoothly pass through overflow port 5. Sewage inlet pipe 3 is used to discharge sewage, oily water, or grey water containing pollutants. Overflow pipe 4 and drain pipe 6 are connected at the bottom of aeration chamber 1 by flanges, both serving as sewage discharge channels. Drain pipe 6 is connected to the ship's sedimentation treatment unit for further sewage treatment. Overflow pipe 4 is isolated from the internal activated sludge and pollutant sediments, and overflow port 5 is the sewage discharge channel, allowing sewage to enter the sedimentation tank through overflow pipe 4 and drain pipe 6 without affecting the sediment decomposition process at the bottom of aeration chamber 1.

[0023] like Figure 1 and Figure 4 As shown, the top of the overflow pipe 4 is closed, and the overflow pipe 4 is vertically arranged, with overflow ports 5 evenly spaced. Because the drain pipe 6 is vertically arranged inside the aeration chamber 1, the overflow ports 5 located below the liquid surface can play an overflow role. Through multiple equally spaced overflow ports 5, multiple overflow channels are formed, and the pressure of the sewage is distributed to each overflow port 5. At the same liquid level, compared with a single overflow port 5, the flow velocity of the sewage is reduced, which plays a buffering and throttling role, thereby avoiding the adverse effects caused by excessive sewage flow velocity.

[0024] like Figure 1 As shown, an eyepiece 7 is provided on the side of the aeration chamber 1. The eyepiece 7 is vertically positioned, and both ends of the eyepiece 7 are connected to the interior of the aeration chamber 1. The two ends of the eyepiece 7 are respectively connected to the top and bottom ends of the side of the aeration chamber 1. It utilizes the principle of communicating vessels to facilitate personnel to observe the liquid level from the outside, and to facilitate the detection of any abnormalities in the device's operation.

[0025] like Figures 1 to 3 As shown, the aeration chamber 1 is also equipped with a flushing pipe 8, which is connected to a nozzle 9. The aeration chamber 1 is also equipped with an interface 10, and one end of the flushing pipe 8 is connected to the interface 10. When the settled wastewater is discharged and the sediment needs to be cleaned, the flushing pipe 8 supplies water through the connected external pipeline and uses the nozzle 9 to flush the bottom of the aeration chamber 1, thereby flushing the activated sludge and its decomposition products settled at the bottom, reducing the accumulation and redundancy of sediment inside the aeration chamber 1, and improving the completeness of the cleaning.

[0026] like Figure 1As shown, a sampler 11 is also connected to the bottom of the aeration chamber 1. The bottom of the sampler 11 is connected to the drain pipe 6, and a drain valve 12 is connected to the sampler 11. The sampler 11 serves as a discharge channel for the sediment inside the aeration chamber 1, and its opening and closing are controlled by the drain valve 12.

[0027] like Figure 2 As shown, a manhole cover 13 is also provided on one side of the aeration chamber cavity 1. Opening the manhole cover 13 facilitates maintenance and repair of the interior of the aeration chamber cavity 1.

[0028] like Figure 3 As shown, the flushing pipe 8 is annular, and the nozzles 9 are evenly distributed at the bottom of the flushing pipe 8. This structure, with multiple nozzles 9, expands the coverage area of ​​the flushing aeration chamber 1, improving the completeness of sediment cleaning inside the aeration chamber 1. A support can be installed at the bottom of the flushing pipe 8 to ensure its horizontal stability, but this is not shown in the figure.

[0029] During drainage, the system automatically adjusts the number of overflow ports 5 activated based on the liquid level inside the aeration chamber 1, thus avoiding excessive flow velocity caused by using a single overflow port 5. This process requires no manual operation. For example, when the liquid level inside the aeration chamber 1 is at its highest, all overflow ports 5 can overflow. Because there are multiple overflow ports 5, the pressure of the sewage is distributed across each overflow port 5, resulting in a relatively lower flow velocity compared to a single overflow port 5, which aids in sedimentation treatment in the sedimentation tank. As the sewage is discharged, the liquid level gradually drops below the highest overflow port 5, at which point that overflow port 5 will cease overflowing. This process continues, and as the liquid level gradually decreases, the sewage pressure and flow velocity also decrease accordingly.

[0030] This shipboard sewage buffer and throttling device has a simple structure and low cost. By properly setting the overflow pipe 4 and overflow port 5, it avoids the adverse effects of excessive overflow water velocity in the aeration chamber cavity 1, ensuring the normal operation of the sewage treatment process. The flushing pipe 8 enables effective flushing of the interior of the aeration chamber cavity 1. It is also equipped with an eyepiece 7, a sampler 11 and a manhole cover 13, which meet the requirements for observation, sampling and maintenance of the device.

[0031] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A ship sewage buffer and throttling device, characterized in that: It includes an aeration chamber (1), the top of which is connected to a ventilation pipe (2) and a sewage inlet pipe (3). An overflow pipe (4) is provided inside the aeration chamber (1), and an overflow port (5) is provided on the overflow pipe (4). A drain pipe (6) is connected to the bottom of the overflow pipe (4), and the drain pipe (6) is located outside the aeration chamber (1).

2. The ship sewage buffer and throttling device according to claim 1, characterized in that: The top of the overflow pipe (4) is closed, the overflow pipe (4) is vertically arranged, and the overflow ports (5) are arranged at equal intervals.

3. The ship sewage buffer and throttling device according to claim 2, characterized in that: The aeration chamber cavity (1) is provided with an eyepiece (7) on its side. The eyepiece (7) is vertically arranged and its two ends are connected to the interior of the aeration chamber cavity (1).

4. The ship sewage buffer and throttling device according to any one of claims 1-3, characterized in that: The aeration chamber cavity (1) is also provided with a flushing pipe (8), which is connected to a nozzle (9). The aeration chamber cavity (1) is also provided with an interface (10), and one end of the flushing pipe (8) is connected to the interface (10).

5. The ship sewage buffer and throttling device according to claim 4, characterized in that: A sampler (11) is also connected to the bottom of the aeration chamber (1). The bottom of the sampler (11) is connected to the drain pipe (6). A drain valve (12) is connected to the sampler (11).

6. The ship sewage buffer and throttling device according to claim 5, characterized in that: A manhole cover (13) is also provided on one side of the aeration chamber cavity (1).

7. The ship sewage buffer and throttling device according to claim 5, characterized in that: The flushing pipe (8) is annular, and the nozzles (9) are evenly distributed at the bottom of the flushing pipe (8).

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