Sewage tank device for small pleasure boat

By designing a lightweight sewage tank device, the problems of mismatch in capacity, heavy weight, high cost and large space occupation of small cruise ships are solved, and the effects of saving space, reducing costs and simplifying emissions are achieved.

CN223267002UActive Publication Date: 2025-08-26SHANGHAI MERCHANT SHIP DESIGN & RES INST
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Patent Information

Application Number
CN202422560088.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-08-26
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

The design of the black water tank of small cruise ships has problems such as mismatch in capacity, heavy weight, high cost, large space and difficulty in cleaning.

Method used

The sewage tank device is made of high-density polyethylene or polypropylene material, integrates the sewage pipe port, exhaust pipe port and liquid level detector, is equipped with a spare tank body, which is connected to the cruise ship sewage system through a quick connection mechanism, achieving a compact and lightweight design.

Benefits of technology

It reduces the space occupied by the hull, reduces weight and equipment costs, simplifies the emission process, and improves cleaning convenience.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a sewage tank device for a small pleasure boat. The sewage tank device comprises a tank body (1) and an integrated tank cover (2), and the integrated tank cover covers the tank body; a dirt containing pipe orifice (3), an exhaust pipe orifice (4) and a liquid level detector (5) are integrated on the integrated tank cover; the sewage containing pipe opening is communicated with a sewage discharging pipe opening of a sewage system so as to receive sewage discharged by the sewage system and enable the sewage to enter the tank body; the exhaust pipe opening is communicated with the atmosphere; the detection end of the liquid level detector extends into the tank body, and a detection signal of the liquid level detector is accessed into the alarm system; the sewage tank device is further provided with a plurality of standby tank bodies. According to the conception of the utility model, the sewage tank device is adopted to replace a black water cabin in the prior art to receive and collect black water, so that some defects of the design of the existing black water cabin are overcome, and particularly, the sewage tank device occupies a small space and does not need a complicated ship body design, so that the space of the ship body is saved.
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Description

Technical Field

[0001] The utility model relates to a life support facility on a pleasure boat, in particular to a sewage tank device used for a small pleasure boat. Background Art

[0002] In the existing designs of small cruise ships and yachts, like large ships, black water tanks are also designed to collect black water sewage.

[0003] The current problem is:

[0004] First, small cruise ships or yachts have a limited number of toilets, so the amount of black water collected is relatively small. Traditional black water tank designs are often oversized, resulting in low actual utilization rates and taking up valuable hull space.

[0005] Secondly, these black water tanks are usually made of steel, which is not only heavy but also expensive;

[0006] Furthermore, the discharge system of the black water tank also needs to be equipped with a dedicated sewage pump to discharge the sewage to the onshore treatment facilities or receiving ships. This not only adds additional equipment costs, but also requires the cooperation of the terminal or receiving ship, which increases time and economic costs.

[0007] Finally, the internal structure of traditional black water tanks is difficult to clean, and long-term accumulation may lead to odor pollution and other hygiene problems. Summary of the Invention

[0008] The purpose of the utility model is to provide a sewage tank device for a small pleasure boat, which is used to replace the black water tank of the prior art to receive and collect black water, thereby overcoming many disadvantages of the black water tank design.

[0009] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0010] A sewage tank device for a small pleasure boat, comprising a tank body and an integrated tank cover, wherein the integrated tank cover is closed on the tank body; the integrated tank cover is integrated with a sewage receiving pipe port, an exhaust pipe port, and a liquid level detector; the sewage receiving pipe port is connected to the sewage discharge pipe port of the pleasure boat sewage system to receive sewage discharged from the sewage system into the tank body; the exhaust pipe port is connected to the atmosphere; the detection end of the liquid level detector extends into the inner side of the tank body, and the detection signal of the liquid level detector is connected to the alarm system of the pleasure boat.

[0011] Furthermore, the sewage tank device is also equipped with a plurality of spare tank bodies.

[0012] Furthermore, a common can cover is provided for each can body.

[0013] Furthermore, the tank body is made of high-density polyethylene or polypropylene.

[0014] Furthermore, the capacity of the tank body is 30 to 200L.

[0015] Furthermore, the sewage receiving pipe port is connected to the sewage discharge pipe port of the cruise ship sewage system via a quick connection mechanism.

[0016] Furthermore, the cruise ship is provided with a waste gas exhaust pipeline, and the exhaust pipe opening is connected to the atmosphere through the waste gas exhaust pipeline.

[0017] Furthermore, the integrated tank cover and the tank body are connected by a flange clamp, a screw cap or a quick connector.

[0018] Furthermore, the sewage system is a black water sewage system or a grey water sewage system.

[0019] The concept of the utility model is to adopt a sewage tank device to replace the black water tank of the prior art to receive and collect black water, so as to overcome some disadvantages of the existing black water tank design.

[0020] Specifically:

[0021] 1) Compared with traditional black water tanks, the sewage tank device occupies less space and does not require complex hull design, saving hull space;

[0022] 2) The sewage tank device has a compact structure and is lightweight, thus reducing the weight of the hull;

[0023] 3) There is no need for the sewage pump configured in the traditional black water tank design, nor is there any need for the cooperation of the dock or receiving ship, thus saving time and economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a structural schematic diagram of a sewage tank device for a small pleasure boat. DETAILED DESCRIPTION

[0025] The present invention will be further described below with specific embodiments:

[0026] This embodiment provides a sewage tank device for small cruise ships. The sewage tank device is specially designed for small cruise ships. The sewage tank device is arranged at the sewage outlet of the cruise ship's sewage system (black water sewage system or gray water sewage system). Its function is to collect sewage (black water or gray water) discharged from the sewage outlet.

[0027] See also Figure 1 Specifically,

[0028] The sewage tank device mainly includes a tank body 1 and an integrated tank cover 2.

[0029] The tank body 1 is made of high-density polyethylene or polypropylene by injection molding. The capacity of the tank body 1 can be set to 30-200L.

[0030] The integrated tank cover 2 can be tightly closed on the tank body 1, thereby sealing the tank body 1. It should be noted that the integrated tank cover 2 and the tank body 1 are firmly connected together by "covering".

[0031] More specifically, in this embodiment, the integrated tank cover 2 and the tank body 1 are connected using a conventional flange clamp. In other embodiments, a screw cap or quick connector may be used. The same connection method also applies to the conventional tank cover described below.

[0032] The integrated tank cover 2 is integrated with a sewage receiving pipe port 3 and an exhaust pipe port 4 , and both of the two pipe ports are connected to the inside and outside of the integrated tank cover 2 .

[0033] The sewage receiving pipe port 3 is used to communicate with the sewage discharge pipe port of the original sewage system of the cruise ship to receive sewage discharged from the sewage system into the tank body 1.

[0034] In order to facilitate the connection between the sewage pipe outlet 3 and the "sewage outlet of the sewage system", a quick connection mechanism is provided between the two. Specifically, quick pipe joints that match each other are provided on both, so that the two can be conveniently and quickly connected together.

[0035] The exhaust pipe port 4 is used to communicate with the sewage exhaust pipeline and communicate with the atmosphere through the sewage exhaust pipeline to discharge the gas that needs to be discharged when "sewage discharged from the sewage system enters the tank body 1".

[0036] It should be noted that the sewage gas exhaust pipeline is specially configured on the cruise ship for the sewage tank device of this embodiment. The specific direction of the sewage gas exhaust pipeline is determined according to the specific location of the sewage tank device. It is as straight and upward as possible. One end of the pipe is connected to the exhaust pipe 4 of the sewage tank device, and the other end is placed at the highest possible point on the entire ship to connect with the atmosphere to avoid the impact of odor on the cabin environment.

[0037] Furthermore, a liquid level detector 5 is mounted on the integrated tank lid 2. Its detection tip extends into the interior of the tank body 1, and its detection signal is connected to the cruise ship's existing alarm system. When the sewage level in the tank body 1 reaches the detection tip of the liquid level detector 5, the liquid level detector 5 sends a corresponding detection signal to the alarm system, which then issues an alarm based on the detection signal from the liquid level detector 5.

[0038] In summary, when the liquid level detector 5 detects that the sewage level in the tank body 1 reaches a defined level, the alarm system of the cruise ship will send out an alarm signal to remind the crew to update the tank body 1 .

[0039] In this embodiment, the cruise ship is equipped with one or more spare tank bodies 1 for the sewage tank system. When the cruise ship's alarm system issues an alarm signal, the spare tank body 1 is used to replace the tank body 1 in the sewage tank system. The spare tank body 1 can provide redundancy for the cruise ship's black water collection capacity.

[0040] In addition, in order to prevent the sewage in the updated tank body 1 from being directly exposed to the air and causing air pollution, each tank body 1 is provided with a common tank cover, which is covered on the updated tank body 1 to prevent pollution.

[0041] The specific working principle of the sewage tank device in this embodiment is as follows:

[0042] The sewage discharged from the sewage system's sewage outlet enters the tank body 1 through the sewage outlet 3. During this process, the excess gas in the tank body 1 is discharged from the exhaust outlet 4 and discharged into the atmosphere through the cruise ship's sewage exhaust pipeline.

[0043] When the sewage level in the tank body 1 reaches the detection end of the liquid level detector 5 , the alarm system of the cruise ship is triggered to sound an alarm, reminding the crew to update the tank body 1 .

[0044] Next, the tank body 1 is sealed with an ordinary tank cover. After the cruise ship docks at the pier, the tank body 1 filled with sewage is transferred to a special sewage treatment site on the shore for subsequent harmless treatment.

[0045] In this embodiment, the sewage tank device is used to replace the black water tank of the prior art to receive and collect black water. The advantages of doing so are:

[0046] 1) Compared with traditional black water tanks, the sewage tank device occupies less space and does not require complex hull design, saving hull space;

[0047] 2) The sewage tank device has a compact structure and is lightweight, thus reducing the weight of the hull;

[0048] 3) No sewage pump required as in traditional black water tank designs, nor the need for cooperation from docks or receiving vessels, thus saving time and economic costs;

[0049] 4) The tank body 1 is made of high-density polyethylene or polypropylene by injection molding, which is environmentally friendly and durable, with a smooth inner wall and easy to clean.

[0050] In addition, the sewage tank device of this embodiment has the following derivative advantages:

[0051] The sewage tank device is light in weight, easy to transport, and saves space and cost;

[0052] The number of spare tank bodies 1 is arbitrary, which can flexibly cope with various shipboard working conditions;

[0053] No sewage discharge pipeline is required, which reduces equipment and pipeline costs;

[0054] No need for cooperation from emission receiving sites, thus eliminating emission restrictions;

[0055] No emission reception cost, which reduces emission costs.

[0056] It should be noted that the sewage tank device of this embodiment can be used in both black water sewage systems and grey water sewage systems, as long as the sewage tank device is installed at the sewage outlet.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage tank device for a small pleasure boat, characterized by: The sewage tank device comprises a tank body (1) and an integrated tank cover (2), wherein the integrated tank cover (2) is covered on the tank body (1); The integrated tank cover (2) is integrated with a sewage receiving pipe opening (3), an exhaust pipe opening (4) and a liquid level detector (5); the sewage receiving pipe opening (3) is connected to the sewage discharge pipe opening of the cruise ship sewage system to receive sewage discharged from the sewage system into the tank body (1); the exhaust pipe opening (4) is connected to the atmosphere; the detection end of the liquid level detector (5) extends into the inner side of the tank body (1), and the detection signal of the liquid level detector (5) is connected to the alarm system of the cruise ship.

2. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The sewage tank device is also equipped with a plurality of spare tank bodies (1).

3. The sewage tank device for a small pleasure boat according to claim 2, characterized in that: Each tank body (1) is equipped with a common tank cover.

4. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The tank body (1) is made of high-density polyethylene or polypropylene.

5. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The capacity of the tank body (1) is 30 to 200L.

6. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The sewage receiving pipe port (3) is connected to the sewage discharge pipe port of the cruise ship sewage system via a quick connection mechanism.

7. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The pleasure boat is provided with a waste gas exhaust pipeline, and the exhaust pipe port (4) is connected to the atmosphere through the waste gas exhaust pipeline.

8. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The integrated tank cover (2) and the tank body (1) are connected in a flange clamp form, a screw cap form or a quick connector form.

9. The sewage tank device for a small pleasure boat according to claim 1, characterized in that: The sewage system is a black water sewage system or a grey water sewage system.