An engine room for a pure electric tugboat with a subsea valve box

Abstract

This utility model relates to the field of tugboat engine room structural design technology, and discloses a pure electric tugboat engine room with a subsea valve box. It includes a main engine room body composed of a front wall, a rear wall, and an outer plate. An inner floor plate is installed inside the main engine room body. An AC power distribution board, a left-side DC power distribution board, a right-side DC power distribution board, and a generator set are arranged on the upper surface of the inner floor plate. The lower surface of the inner floor plate is formed by multiple watertight enclosure panels to create multiple spaces for storing different liquids. These spaces include a circulating water tank and a subsea valve box, with the subsea valve box embedded within the circulating water tank. By embedding the subsea valve box within the circulating water tank, this utility model not only provides more space for the subsea valve box, facilitating the installation of equipment such as fire pumps, but also prevents interference between the subsea valve box and the DC power distribution board. This also reduces the length of the fire pump pipeline and allows for easier movement of personnel between the power distribution boards.

Description

Technical Field

[0001] This utility model relates to the field of tugboat engine room structure design technology, and more specifically, to a pure electric tugboat engine room with a seabed valve box. Background Technology

[0002] Since tugboats are primarily used in port operations with fixed operating ranges, developing pure electric tugboats is a suitable option. However, compared to traditional fuel-powered tugboats, pure electric tugboats require additional battery compartments and AC / DC power distribution panels in the engine room. This poses a significant challenge for tugboats with smaller tonnage and limited internal space. Furthermore, space needs to be reserved at the bottom of the engine room for watertight bottom tanks to serve as cooling water tanks, seabed valve boxes, and foam tanks. Some bottom tanks also need to be connected to equipment within the engine room via pipelines; therefore, the ease of pipeline layout must be considered during the overall design.

[0003] Existing technologies for traditional fuel-powered tugboats are limited by cabin space, so many liquid tanks, such as fuel tanks, sewage tanks, foam tanks, circulating water tanks, and fire-fighting subsea valve boxes, must be located at the bottom of the engine room and the bilge. For example, Figure 1 The layout scheme shown is as follows ( Figure 1 (A top view of the engine room bottom structure) shows that the bottom fire-fighting subsea valve box is enclosed by a watertight plate to form a separate compartment at the bottom and located on one side of the circulating water tank. However, this design has the following drawbacks:

[0004] 1. The narrow linearity of the installation location of the subsea valve box results in limited internal space height, making it inconvenient to install equipment such as fire pumps;

[0005] 2. The engine room of a pure electric tugboat needs to be equipped with a DC power distribution board, which will interfere with the top of the seawater valve box;

[0006] 3. Inside the engine room, space needs to be left for operators to access the DC and AC power distribution boards. This requires extending the fire pump's piping around the DC power distribution board, which increases costs and restricts the space for personnel to move around.

[0007] Therefore, studying how to rationally arrange space and achieve effective space utilization is crucial for pure electric tugboats. Utility Model Content

[0008] In view of this, the present invention proposes a pure electric tugboat engine room with a seabed valve box, the specific technical solution of which is as follows:

[0009] An electric tugboat engine room with a subsea valve box includes a main engine room body composed of a forward engine room wall, a rear engine room wall, and two outer panels. A deck is installed on the upper part of the main engine room body. An inner floor plate is installed inside the main engine room below the deck. An AC power distribution board, a left-side DC power distribution board, a right-side DC power distribution board, and a generator set are arranged on the upper surface of the inner floor plate. The AC power distribution board is located near the rear engine room wall. The left-side DC power distribution board and the generator set are respectively arranged on the left and right sides in front of the AC power distribution board. The right-side DC distribution board, the generator set is located between the left-side DC distribution board and the right-side DC distribution board; the lower surface of the inner bottom plate is formed by multiple watertight enclosure panels to form multiple spaces for storing different liquids, including a circulating water tank and a subsea valve box, the subsea valve box being embedded in the circulating water tank, the front side of the generator set being connected to one end of the fire pump pipeline through a corresponding installation port, the other end of the fire pump pipeline passing downward through the inner bottom plate and connected to the corresponding subsea valve box on the lower side.

[0010] Preferably, the inner bottom plate is located 800-1000mm above the baseline of the tugboat.

[0011] Preferably, the lower surface of the inner bottom plate is sequentially fixed with three first circulating water tank watertight enclosures in the front-rear direction. The first circulating water tank watertight enclosures are parallel to the front wall of the engine room, and the left and right sides of the three first circulating water tank watertight enclosures are respectively sealed to second circulating water tank watertight enclosures. The three first circulating water tank watertight enclosures, the two second circulating water tank watertight enclosures, and the front wall of the engine room together enclose the circulating water tank; the subsea valve box is located inside the foremost first circulating water tank watertight enclosure and the front wall of the engine room.

[0012] Preferably, the subsea valve box is formed by four subsea valve box watertight enclosures located within the watertight enclosure of the circulating water tank.

[0013] Preferably, the subsea valve box is formed by three subsea valve box watertight enclosures located within the watertight enclosure of the circulating water tank, plus the engine room front wall.

[0014] Preferably, the rear end of the circulating water tank can also be expanded to enclose a corresponding domestic sewage tank and a foam tank through another watertight enclosure panel.

[0015] In existing tugboat engine room designs, the fire-fighting subsea valve box is typically a separate compartment enclosed by watertight panels and installed at the bottom of the engine room. This presents numerous installation and operational inconveniences due to the limited engine room space. This invention, however, fully considers the limited space by adjusting the position of the subsea valve box, embedding it within the circulating water tank, thereby achieving the following beneficial effects:

[0016] 1. Compared with the prior art, the pure electric tugboat engine room solution of this utility model leaves more space for the seabed valve box, which is convenient for installing equipment such as fire pumps.

[0017] 2. Compared with the prior art, the pure electric tugboat engine room solution of this utility model adjusts the position of the seawater valve box so that it will no longer interfere with the DC power distribution board.

[0018] 3. Compared with the prior art, the pure electric tugboat engine room solution of this utility model adjusts the position of the seabed valve box, making it closer to a position where the centerline of the ship is not so narrow, and also closer to the position of the fire pump, thereby reducing the length of the fire pump pipeline and reducing pipeline costs.

[0019] 4. Compared with the prior art, the pure electric tugboat engine room scheme of this utility model allows for a more reasonable cabin layout after adjusting the position of the seabed valve box, and makes it easier to leave space between the power distribution boards for operators to pass through. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a design scheme for the engine room of a tugboat in the existing technology.

[0022] Figure 2 This is a partial top view of the engine room (excluding deck) of a pure electric tugboat with a seabed valve box, according to an embodiment of the present invention.

[0023] Figure 3 This is a partial bottom view of the engine room (excluding deck) of a pure electric tugboat with a seabed valve box, according to an embodiment of the present invention.

[0024] Figure 4 This is an isometric view from a top-down perspective of the engine room (excluding the deck) of a pure electric tugboat with a seabed valve box, according to an embodiment of this utility model.

[0025] Figure 5 This is an isometric view of the engine room (excluding deck) of a pure electric tugboat with a seabed valve box, taken from a bottom-up perspective, according to an embodiment of this utility model.

[0026] Figure 6 This is a partial bottom view of another embodiment of the present invention.

[0027] In the diagram: 1-Front wall of engine room, 2-Rear wall of engine room, 3-Outer plate, 4-Inner bottom plate, 5-AC power distribution board, 6-Left side DC power distribution board, 7-Right side DC power distribution board, 8-Generator set, 9-Subsea valve box, 10-Fire pump pipeline, 11-Watertight enclosure of the first circulating water tank, 12-Watertight enclosure of the second circulating water tank, 13-Watertight enclosure of the subsea valve box. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Example:

[0032] like Figures 2-5 As shown, this embodiment of a pure electric tugboat engine room with a seabed valve box includes an engine room main body composed of an engine room front wall 1, an engine room rear wall 2, and two outer plates 3 on the left and right. A deck is installed on the upper part of the engine room main body, and an inner bottom plate 4 is installed in the engine room main body below the deck.

[0033] In this embodiment, the engine room forward bulkhead 1, engine room aft bulkhead 2, outer plating 3, deck, and inner bottom plate 4 must be arranged and connected while meeting the plate thickness requirements for the engine room area structure in the "Code for Construction of Steel Inland Waterway Vessels". Specifically, the engine room space is firstly enclosed by four plates: engine room forward bulkhead 1, outer plating 3, engine room aft bulkhead 2, and deck (located at a higher position, so it is not shown in the figure). Then, an inner bottom plate 4 is installed inside the engine room at a height of 800-1000mm from the ship's baseline.

[0034] An AC power distribution board 5, a left-side DC power distribution board 6, a right-side DC power distribution board 7, and a generator set 8 are arranged and installed on the upper surface of the inner base plate 4.

[0035] Specifically, such as Figure 2 , Figure 4 As shown, the AC distribution board 5 is located on the side near the rear wall of the engine room. The left DC distribution board 6 and the right DC distribution board 7 are respectively installed on the left and right sides in front of the AC distribution board 5. The generator set 8 is located between the left DC distribution board 6 and the right DC distribution board 7.

[0036] The lower surface of the inner bottom plate 4 is arranged with multiple watertight enclosure plates to form multiple spaces for storing different liquids. These spaces include a circulating water tank and a seabed valve box 9, which is embedded in the circulating water tank.

[0037] The front side of the generator set 8 is connected to one end of the fire pump pipeline 10 through the corresponding installation port, and the other end of the fire pump pipeline 10 passes downward through the inner bottom plate 4 and is connected to the corresponding sea valve box 9 on the lower side.

[0038] In this invention, the reason for considering setting the subsea valve box for fire fighting inside the circulating water tank is that the subsea valve box needs to pump seawater from the outside for fire fighting, while the circulating water tank is used to store seawater as cooling water. Therefore, setting the subsea valve box inside the circulating water tank can not only avoid negative impacts, but also better arrange the liquid tank at the bottom of the engine room.

[0039] This utility model, by adopting the above-mentioned technical solution, embeds the seawater valve box within the circulating water tank, transforming two independent structures into a nested structure. This not only saves space and provides more room for the seawater valve box, facilitating the installation of equipment such as fire pumps, but also prevents the seawater valve box from interfering with the DC power distribution board. The length of the fire pump pipeline can also be reduced, thus lowering costs. Furthermore, it makes it easier to leave space for personnel to walk between the power distribution boards, resulting in multiple benefits.

[0040] More specifically, such as Figure 3 , Figure 5 As shown, the lower surface of the inner bottom plate 4 is sequentially fixed with three first circulating water tank watertight enclosure walls 11 in the front-rear direction, and the first circulating water tank watertight enclosure walls 11 are parallel to the front wall 1 of the engine room. The left and right sides of the three first circulating water tank watertight enclosure walls 11 are respectively sealed and connected to the second circulating water tank watertight enclosure walls 12. The three first circulating water tank watertight enclosure walls 11, the two second circulating water tank watertight enclosure walls 12, and the front wall 1 of the engine room together enclose the circulating water tank; the seabed valve box 9 is located inside the first circulating water tank watertight enclosure wall 11 at the frontmost side and the front wall 1 of the engine room.

[0041] In a further specific embodiment, since the subsea valve box is one of the few structures that needs to take in seawater from the outside, the risk of leakage is higher than that of other bottom structures. Therefore, after embedding the subsea valve box in the circulating water tank, this utility model further surrounds the subsea valve box with a watertight wall to effectively reduce the risk of water entering the bottom of the ship.

[0042] This utility model also provides two different schemes for setting a watertight wall around the submarine valve box, wherein,

[0043] The first option is that the subsea valve box 9 is directly surrounded by four subsea valve box watertight enclosure walls 13 located inside the watertight enclosure wall of the circulating water tank; that is, this option is to completely install the subsea valve box into another structure.

[0044] The second option is: the subsea valve box 9 is formed by three subsea valve box watertight enclosure walls 13 located within the watertight enclosure walls of the circulating water tank, plus the engine room forward wall 1, as follows: Figure 6 As shown, this solution involves using the forward bulkhead of the cabin as one of the watertight enclosures for the seabed valve box, thereby reducing material consumption, lightening weight, and saving costs.

[0045] In a further specific embodiment, the rear end of the circulating water tank can be expanded to enclose corresponding sewage tanks and foam tanks through additional watertight enclosure panels to meet the working needs of the tugboat.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An all-electric tug machine room with a subsea valve box, characterized in that, The naval structure comprises a main naval body consisting of a forward naval wall, a rear naval wall, and two outer panels on the left and right sides. A deck is mounted on the upper part of the main naval body. An inner floor plate is installed within the main naval body below the deck. An AC power distribution board, a left-side DC power distribution board, a right-side DC power distribution board, and a generator set are arranged on the upper surface of the inner floor plate. The AC power distribution board is located near the rear naval wall. The left-side and right-side DC power distribution boards are respectively arranged on the left and right sides in front of the AC power distribution board. The generator set is located between the left-side and right-side DC power distribution boards. The lower surface of the inner floor plate is formed by multiple watertight enclosure panels to create multiple spaces for storing different liquids. These spaces include a circulating water tank and a subsea valve box. The subsea valve box is embedded in the circulating water tank. The front side of the generator set is connected to one end of a fire pump pipeline through a corresponding mounting port. The other end of the fire pump pipeline passes downwards through the inner floor plate and connects to the corresponding subsea valve box on the lower side.

2. An all-electric tug machine room with a subsea valve box according to claim 1, characterized in that, The inner bottom plate is located 800-1000mm above the tugboat's baseline.

3. An all-electric tug machine room with a subsea valve box according to claim 1, characterized in that, The lower surface of the inner bottom plate is fixedly connected with three first circulating water tank watertight enclosures in the front-rear direction. The first circulating water tank watertight enclosures are parallel to the front wall of the engine room. The left and right sides of the three first circulating water tank watertight enclosures are respectively sealed and connected with second circulating water tank watertight enclosures. The three first circulating water tank watertight enclosures, the two second circulating water tank watertight enclosures, and the front wall of the engine room together enclose the circulating water tank. The subsea valve box is located inside the watertight enclosure of the first circulating water tank at the foremost side and the front wall of the engine room.

4. An all-electric tug machine room with a subsea valve box according to claim 3, characterized in that, The subsea valve box is enclosed by four subsea valve box watertight enclosures located within the watertight enclosure of the circulating water tank.

5. An all-electric tug machine room with a subsea valve box according to claim 3, characterized in that, The subsea valve box is formed by three subsea valve box watertight enclosures located within the watertight enclosure of the circulating water tank, plus the engine room front wall.

6. An all-electric tugbarrel with a subsea valve box according to claim 3, characterized in that, The rear end of the circulating water tank can also be expanded to enclose corresponding domestic sewage tanks and foam tanks through additional watertight enclosure panels.

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