Flow guide type high-speed ship sea chest grating and installation method and application thereof

Abstract

The invention discloses a flow guide type high-speed ship sea chest grating and a mounting method and application thereof.The flow guide type high-speed ship sea chest grating comprises a mounting coaming and a grating assembly, the mounting coaming comprises a front side plate, a left side plate, a rear side plate and a right side plate, and the front side plate, the left side plate, the rear side plate and the right side plate are connected in an enclosed mode to form the mounting coaming; the upper end face of the front side plate is as high as the upper end face of the rear side plate, the lower end face of the front side plate is higher than the lower end face of the rear side plate, and the grating assembly is connected to the inner side of the mounting coaming. According to the flow guide type high-speed ship sea chest grating, when a ship travels at a high speed, the flow speed of seawater outside the sea chest can be reduced, the influence of the Bernoulli effect is reduced, the sea chest can suck the seawater more easily, and normal operation of cooling, ballasting, fire fighting and other systems on the ship is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ships, in particular to a flow-guiding type high-speed ship sea chest grille, a mounting method thereof and application thereof. BACKGROUND

[0002] The sea chest is mainly used for cooling, ballast, fire-fighting and the like in a ship, and seawater enters the cooling, ballast, fire-fighting and the like system inside the ship through the sea chest. The sea chest grille is generally arranged in the sea chest, and the sea chest grille separates the larger sundries in the seawater from the seawater, and filters the seawater flowing into the ship in advance, so as to prevent the sundries in the seawater from being sucked into the ship, blocking the pipeline system, and even damaging the pipeline equipment. However, the existing sea chest has poor seawater suction effect due to the influence of Bernoulli effect when the ship is running at high speed, which easily affects the normal operation of the cooling, ballast, fire-fighting and the like system on the ship. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a flow-guiding type high-speed ship sea chest grille, which can slow down the seawater flow rate outside the sea chest when the ship is running at high speed, reduce the influence of Bernoulli effect, and make it easier for the sea chest to suck in seawater, which is conducive to the normal operation of the cooling, ballast, fire-fighting and the like system on the ship.

[0004] The present application also provides a mounting method of the flow-guiding type high-speed ship sea chest grille.

[0005] The present application also provides an application of the flow-guiding type high-speed ship sea chest grille.

[0006] According to the flow-guiding type high-speed ship sea chest grille provided by the first aspect of the present application, the mounting fence is composed of a front side plate, a left side plate, a rear side plate and a right side plate, the upper end face height of the front side plate is the same as that of the rear side plate, and the lower end face height of the front side plate is higher than that of the rear side plate; and the grille assembly is connected to the inner side of the mounting fence.

[0007] According to the first aspect of the present application, the sea gate grille of the high-speed ship has at least the following technical effects: the height of the lower end surface of the front side plate is higher than the height of the lower end surface of the rear side plate, when the installation plate is installed at the sea gate opening of the ship body outer plate, the front side plate faces the bow of the ship, the rear side plate faces the stern of the ship, the height of the lower end surface of the front side plate is higher than or equal to the height of the ship body outer plate, and the height of the lower end surface of the rear side plate is lower than the height of the ship body outer plate, so that the lower end of the rear side plate protrudes outward from the ship body outer plate; when the ship is running at a normal high speed, the direction of the ship is from the stern to the bow, and the direction of the sea water flowing relative to the ship is from the bow to the stern, when the sea water flows along the outer side of the ship body outer plate and passes through the sea gate opening, the sea water first flows through the lower end surface of the front side plate, because the height of the lower end surface of the front side plate is higher than or equal to the height of the ship body outer plate, the front side plate does not block the flow of the sea water, when the sea water continues to flow and finally flows to the front of the rear side plate, because the height of the lower end surface of the rear side plate is lower than the height of the ship body outer plate, the lower end of the rear side plate protrudes outward from the ship body outer plate, so that the sea water is blocked by the protruding part of the lower end of the rear side plate, on the one hand, a part of the blocked sea water flows upward, so as to actively flow into the sea gate above, and then into the cooling, ballast, fire-fighting and other systems on the ship, on the other hand, the continuously blocked sea water forms a slow flow area with a smaller flow rate outside the sea gate opening, so as to reduce the influence of Bernoulli effect, so that the sea gate is more easily sucked into the sea water, and the normal operation of the cooling, ballast, fire-fighting and other systems on the ship is facilitated.

[0008] According to some embodiments of the present application, the lower end surface of the left side plate is a slope, one end of the slope is connected to the lower end surface of the front side plate, and the height of the one end of the slope is the same as the height of the lower end surface of the front side plate, the other end of the slope is connected to the lower end surface of the rear side plate, and the height of the other end of the slope is the same as the height of the lower end surface of the rear side plate.

[0009] According to some embodiments of the present application, the lower end surface of the right side plate is a slope, one end of the slope is connected to the lower end surface of the front side plate, and the height of the one end of the slope is the same as the height of the lower end surface of the front side plate, the other end of the slope is connected to the lower end surface of the rear side plate, and the height of the other end of the slope is the same as the height of the lower end surface of the rear side plate.

[0010] According to some embodiments of the present application, the grille assembly comprises a grille plate and a plurality of grille bars, the outer side surface of the grille plate is connected to the inner side surface of the installation plate, all the grille bars are connected to the inner side of the grille plate, and all the grille bars are arranged in a spaced manner.

[0011] According to some embodiments of the present application, the height of the lower end surface of the grille plate and the height of the lower end surface of all the grille bars are not lower than the height of the lower end surface of the front side plate.

[0012] According to some embodiments of the present application, one end of all the grid bars is welded with the front side of the inner side of the grid coaming, and the other end of all the grid bars is welded with the rear side of the inner side of the grid coaming.

[0013] According to some embodiments of the present application, the grid assembly further comprises a plurality of grid lugs, the mounting coaming correspondingly comprises a plurality of mounting lugs, the grid lugs are connected with the outer side of the grid coaming, the inner side of the front side plate, the left side plate, the rear side plate and the right side plate are connected with at least one mounting lug, and one grid lug and one mounting lug are connected by bolts.

[0014] According to some embodiments of the present application, all the grid lugs and the grid coaming are welded, and all the mounting lugs and the mounting coaming are welded.

[0015] According to the installation method of the grid for the underwater door of the flow-guiding high-speed ship according to the second aspect of the embodiments of the present application, the grid for the underwater door of the flow-guiding high-speed ship is installed at the opening of the underwater door of the ship hull outer plate, and the installation method comprises the following steps: welding the mounting coaming at the opening of the underwater door, so that the front side plate faces the bow of the ship, the rear side plate faces the stern of the ship, the height of the lower end surface of the front side plate is higher than or equal to the height of the ship hull outer plate, and the height of the lower end surface of the rear side plate is lower than the height of the ship hull outer plate; and connecting the grid assembly with the mounting coaming.

[0016] According to the installation method of the grid for the underwater door of the flow-guiding high-speed ship according to the second aspect of the embodiments of the present application, the grid for the underwater door of the flow-guiding high-speed ship is installed on the ship, which can slow down the seawater flow speed outside the underwater door when the ship is running at high speed, reduce the influence of Bernoulli effect, make the underwater door more easily suck in seawater, and be beneficial to the normal operation of cooling, ballast, fire-fighting and other systems on the ship.

[0017] According to the application of the grid for the underwater door of the flow-guiding high-speed ship according to the third aspect of the embodiments of the present application, the grid for the underwater door of the flow-guiding high-speed ship is applied to the ship.

[0018] According to the application of the grid for the underwater door of the flow-guiding high-speed ship according to the third aspect of the embodiments of the present application, the ship with the grid for the underwater door of the flow-guiding high-speed ship can slow down the seawater flow speed outside the underwater door when the ship is running at high speed, reduce the influence of Bernoulli effect, make the underwater door more easily suck in seawater, and be beneficial to the normal operation of cooling, ballast, fire-fighting and other systems on the ship.

[0019] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attendant drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings. Figure 1 is a front view structural perspective view of a guide type high-speed ship seabed door grille according to an embodiment of the present application; Figure 2 is a front view structural perspective view of a guide type high-speed ship seabed door grille according to an embodiment of the present application; Figure 1 Figure 3 is an assembly schematic view of a guide type high-speed ship seabed door grille according to an embodiment of the present application applied to a ship; Figure 4 is an assembly schematic view of a guide type high-speed ship seabed door grille according to an embodiment of the present application applied to a ship; Figure 3 Figure 5 is a perspective structural schematic view of a guide type high-speed ship seabed door grille according to an embodiment of the present application and a ship outer plate. Figure 3

[0021] Reference numerals: mounting coaming 100, front side plate 110, left side plate 120, rear side plate 130, right side plate 140, mounting lug plate 150, bevel 160, round corner 170; grille assembly 200, grille coaming 210, grille bar 220, grille lug plate 230; ship outer plate 300; suction stub 400. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the attached drawings. The embodiments of the present application are examples of the present application and are not intended to limit the present application.

[0023] ​​​In the description of this invention, it should be understood that the directional descriptions, such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "point," "inner," "outer," "axial," "radial," "circumferential," and "around," are based on the directional or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, sidewalls refer to the left side wall and / or the right side wall.

[0024] In the description of this invention, "a plurality of" means two or more; "greater than," "less than," "exceeding," etc., are understood to exclude the number itself; and "above," "below," "within," etc., are understood to include the number itself. Where "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this invention, it should be understood that "A is set on B" or "A is set on B" describes the connection or positional relationship between A and B, and does not mean that A is necessarily above B.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, movable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. "Bolt connection" and "screw connection" can be used interchangeably. Those skilled in the art can understand the specific meaning of the above terms in this invention in conjunction with the specific circumstances. It should be understood that multiple similar features in this invention are distinguished only by different prefixes. Therefore, in this invention, feature names without distinguishing prefixes (or feature names with partial prefixes) are used to represent the combination of similar features of this type, such as using "sloping surface 160" to represent left sloping surface 160 and right sloping surface 160.

[0027] Reference Figures 1 to 5According to an embodiment of the present invention, a flow-guiding high-speed ship seabed gate grille includes an mounting plate 100 and a grille assembly 200. The mounting plate 100 includes a front side plate 110, a left side plate 120, a rear side plate 130, and a right side plate 140. The front side plate 110, the left side plate 120, the rear side plate 130, and the right side plate 140 are connected to form the mounting plate 100. The upper end face of the front side plate 110 is at the same height as the upper end face of the rear side plate 130, and the lower end face of the front side plate 110 is higher than the lower end face of the rear side plate 130. The grille assembly 200 is connected to the inner side of the mounting plate 100.

[0028] It should be understood that the connection between the front side plate 110, the left side plate 120, the rear side plate 130, and the right side plate 140 can be achieved through welding, gluing, bolting, snap-fitting, or a one-piece connection, meaning the mounting enclosure 100 is a single-piece structure. For ease of description, a portion of the one-piece mounting enclosure 100 is referred to as the front side plate 110, the left side plate 120, the rear side plate 130, and the right side plate 140. It should also be understood that the connections between the front side plate 110, the left side plate 120, the rear side plate 130, and the right side plate 140 can have rounded corners 170 or chamfers. The grille assembly 200 can be a structure composed of grille bars 220 and grille enclosure 210 as described in this invention, or a structure with multiple openings on a single plate, or other structures from the prior art. In the accompanying drawings, BL stands for Base Line, the hull baseline.

[0029] It is important to understand that the front panel 110, left panel 120, rear panel 130, and right panel 140 are all roughly rectangular thin plates (thickness much smaller than width, and width smaller than length). After these four rectangular thin plates are joined together to form the mounting panel 100, the width of the rectangular thin plates is the height (vertical length) of the mounting panel 100, and the length of the rectangular thin plates is the side length (horizontal or front-back length; the length and width of the mounting panel 100). The mounting panel 100 can be roughly considered as the four sides of a rectangle, or in other words, a square box structure without a top or bottom plate.

[0030] It should be understood that the front, rear, left, right, top, and bottom orientations described separately for the guide-type high-speed vessel seabed gate grille (mounting plate 100) in this invention refer to the orientation of the conventional seabed gate grille (mounting plate 100) (or, in other words, the seabed gate grille and mounting plate 100 in the prior art) after being normally placed on a horizontal plane. Ideally (similar to the following 'same,' without considering various error effects), after the conventional seabed gate grille is normally placed, the width direction of its rectangular thin plate is the vertical direction of the mounting plate 100, and the upper surfaces of its front side plate 110, left side plate 120, rear side plate 130, and right side plate 140 are all on the same horizontal plane (or, in other words, the upper surfaces are at the same height). Furthermore, the lower ends of the front side plate 110, left side plate 120, rear side plate 130, and right side plate 140 are all on the same horizontal plane (or, in other words, their lower ends are at the same height), meaning that the front side plate 110, left side plate 120, rear side plate 130, and right side plate 140 are at the same height. The current-guiding high-speed ship seabed gate grille (mounting plate 100) of this invention, having undergone special treatment (generally cutting off a portion of the lower end of the front side plate 110; furthermore, a portion of the lower ends of the left side plate 120 and right side plate 140 is also cut off, so that the lower ends of the left side plate 120 and right side plate 140 form a slope 160), is placed normally on a horizontal plane as a conventional mounting plate 100. After installation, the lower end face of the front side plate 110 of the mounting plate 100 is suspended (or, the height of the lower end face of the front side plate 110 is higher than the height of the lower end face of the rear side plate 130). Since the upper end face is generally untreated, the upper end faces of the front side plate 110, left side plate 120, rear side plate 130, and right side plate 140 are all on the same horizontal plane. In other words, the vertical length of the front side plate 110 is smaller than the vertical length of the rear side plate 130. These details can also be seen in the accompanying drawings of this invention. Furthermore, the descriptions of the interior and exterior of the guide-type high-speed vessel seabed gate grille (mounting plate 100, grille assembly 200 components, etc.) in this invention are related to the guide-type high-speed vessel. The distance between the centers of the sea gate grille (or the various components of the mounting plate 100 and grille assembly 200) is as follows: the closer to the center, the inner side; the farther away, the outer side. Specifically, for example, the rear side of the front side plate 110 of the mounting plate 100 is the inner side, and the front side is the outer side; the front side of the rear side plate 130 is the inner side, and the rear side is the outer side; the right side of the left side plate 120 is the inner side, and the left side is the outer side; the left side of the right side plate 140 is the inner side, and the right side is the outer side. The same applies to other components such as the grille mounting plate 210, or parts of the structure that make up the component, such as the plate on the left side of the grille mounting plate 210. The right side of this plate is the inner side, and the left side is the outer side. The same principle applies to the inner and outer sides of other components and structures.Furthermore, after installing the guide-type high-speed vessel seagate grille (mounting plate 100) onto the seagate opening of the hull plating 300, the direction from bow to stern is considered the rearward direction, and the direction from stern to bow is considered the forward direction. The vertical direction is the normal vertical direction (or the direction of gravity is downward), and the left and right directions are the forward and backward directions and the vertical direction. The seagate opening is generally located on the ship's side (left or right side), and is generally inclined (i.e., it is not perpendicular to the horizontal plane, but rather inclined to the horizontal plane). It has a certain angle; further, in the description of the embodiments of the present invention, in order to facilitate the description and understand the working principle and effect of the present invention, the opening of the seabed gate is simplified and idealized. Specifically, the plane of the seabed gate opening is the line intersecting with the horizontal plane, extending along the fore-and-aft direction of the ship, or in other words, parallel to the fore-and-aft direction of the ship. Moreover, the "inner" and "outer" described at this time refer to the position closer to the center of the ship as "inner" and the position farther from the center of the ship as "outer" (or in other words, the position closer to the outside is "outer"). Therefore, according to the conventional seabed gate grille (installation panel 100) (or In the prior art, after the seagate grille is normally installed at the seagate opening, the front side plate 110 of the mounting plate 100 is located in front (or, the front side plate 110 faces the bow of the ship), the rear side plate 130 is located behind (or, the rear side plate 130 faces the stern of the ship), one of the left side plate 120 and the right side plate 140 is located on the left, and the other is located on the right. One of the left side plate 120 and the right side plate 140 will be lower than the other (due to the inclined setting of the seagate opening plane). Furthermore, the front side plate 110, the left side plate 120, and the rear side plate 130... The lower surfaces of the front side plate 110 and the right side plate 140 are both outer surfaces (based on the ship and the hull plating 300). The upper surfaces of the front side plate 110, the left side plate 120, the rear side plate 130, and the right side plate 140 are all inner surfaces (based on the ship and the hull plating 300). Therefore, the outward-protruding structure at the seagate is roughly a downward (directly downward, obliquely downward) protrusion. In other words, at the seagate opening, the downward direction is the outward (towards the outside), and the upward (directly upward, obliquely upward) direction is the inward (towards the ship's interior).

[0031] It should be understood that the term "same" in the descriptions throughout this invention, for practical considerations (positioning error, processing error, assembly error, standard error of dimensional measurement, thermal expansion and contraction deformation due to different temperatures, etc.), refers to "approximately the same," meaning that a certain degree of error is allowed, or that two different dimensions within a certain error range can also be considered the same. Specifically, for example, "the height of the upper end face of the front side panel 110 is the same as the height of the upper end face of the rear side panel 130." In practice, if the height of the upper end face of the front side panel 110 is h1 and the height of the upper end face of the rear side panel 130 is h2, then when h2 - first expected tolerance ≤ h1 ≤ h2 + first expected tolerance (the units of h1, h2, and the first expected tolerance are all the same), it can also be said that "the height of the upper end face of the front side panel 110 is the same as the height of the upper end face of the rear side panel 130." More specifically, the first expected tolerance can be 4mm.

[0032] It is important to understand that the comparison of the 'height' of the front side plate 110 and the rear side plate 130 in existing conventional seabed gate grilles or the current-guided high-speed vessel seabed gate grille of this invention refers to the comparison of the heights of the front side plate 110 and the rear side plate 130 at approximately the same position. 'Same position' means that, with the connection point between the front side plate 110 and the left side plate 120 (point A) as the zero point and the connection point between the front side plate 110 and the right side plate 140 (point B) as the 100th point, any position on the front side plate 110 will have a percentage value (the distance from this position to point A divided by the distance between A and B, then multiplied by 100% to obtain the percentage value). Similarly, with the connection point between the rear side plate 130 and the left side plate 120 (point C) as the zero point and the connection point between the rear side plate 130 and the right side plate 140 (point D) as the 100th point, any position on the front side plate 110 will have a percentage value. The distance between this location and point C is divided by the distance between C and D, and then multiplied by 100% to convert it to a percentage value. Therefore, 'the same location' refers to the location of a certain percentage value on the front side plate 110 and the location of the same percentage value on the rear side plate 130. When the existing conventional seagate grille or the current-guided high-speed ship seagate grille of this invention is installed at the seagate opening, the comparison of the 'height' of a certain location on the hull 300 (seagate opening) and the front side plate 110 (rear side plate 130) is made by comparing the height of that location on the front side plate 110 (rear side plate 130) after it is installed at the seagate opening of the hull 300 with the height of the point closest to that location on the edge of the seagate opening of the hull 300 (or the groove wall, hole wall, opening wall; the seagate opening can be roughly regarded as a through groove opening).

[0033] In conventional seagate grilles, when the seagate grille and mounting plate 100 are installed at the seagate opening of the hull plating 300 of a ship, the front side plate 110 faces the bow of the ship and the rear side plate 130 faces the stern. At this time, the lower end faces of the front side plate 110 and the rear side plate 130 are approximately the same height. Furthermore, the height direction (width direction of the rectangular thin plate) of the mounting plate 100 is approximately the same as the inward and outward directions of the seagate opening (or, in other words, the thickness direction of the channel wall), facilitating the installation of the mounting plate 100. When installing the mounting plate 100 in conjunction with the seagate opening (with the outer side of the mounting plate 100 fitting against the groove wall), the lower end face of the front side plate 110 and the lower end face of the rear side plate 130 of the conventional seagate grille may or may not protrude from the hull plating 300 (or, in other words, the height of the lower end face of the front side plate 110 and the lower end face of the rear side plate 130 is greater than or less than the height of the hull plating 300). Therefore, to ensure the outer side of the mounting plate 100 fits snugly... The groove wall facilitates installation. After the flow-guiding high-speed ship seagate grille of the present invention is installed at the seagate opening, the height direction of its mounting plate 100 is approximately the same as the inward and outward directions of the seagate opening. At this time, because the lower end face of the front side plate 110 of the mounting plate 100 of the present invention is higher than the lower end face of its rear side plate 130, it is possible to achieve that the height of the lower end face of the front side plate 110 is higher than or equal to the height of the hull hull plate 300, and the height of the lower end face of the rear side plate 130 is lower than the height of the hull hull plate 300. The effect of 'height'; therefore, the maximum height of the mounting plate 100 of the present invention (height of the rear side plate 130 and height of the uncut front side plate 110) is the same as the height of the conventional mounting plate 100 in which the lower end surfaces of the front side plate 110 and the rear side plate 130 protrude from the hull plate 300 after installation. In other words, the maximum height of the mounting plate 100 of the present invention is greater than the height of the conventional mounting plate 100 in which the lower end surfaces of the front side plate 110 and the rear side plate 130 do not protrude from the hull plate 300 after installation.

[0034] When the flow-guiding high-speed ship seagate grille of the present invention is installed at the seagate opening, the lower end face of the front side plate 110 of the mounting plate 100 is higher than the lower end face of its rear side plate 130. When the mounting plate 100 is installed at the seagate opening of the ship's hull plating 300, the front side plate 110 faces the bow of the ship, the rear side plate 130 faces the stern of the ship, and the lower end face of the front side plate 110 is higher than or equal to the height of the hull plating 300, while the lower end face of the rear side plate 130 is lower than the height of the hull plating 300. This causes the lower end of the aft side plate 130 to protrude outward (or downward, diagonally downward) from the hull plate 300. When the ship is traveling at normal high speed, the direction of travel is from stern to bow (or from rear to front), therefore the direction of seawater flow relative to the ship is from bow to stern (or from front to back). Under normal circumstances, the ratio of the seawater's own velocity to the ship's speed is very small, even negligible. The seawater flows along the outer side of the hull plate 300 (the seawater height and the hull plate 300...). When the seawater flows through the seabed opening (with the outer surfaces roughly the same height), it first flows over the lower surface of the front side plate 110. Because the height of the lower surface of the front side plate 110 is higher than or equal to the height of the hull plating 300, the front side plate 110 does not obstruct the flow of seawater. However, when the seawater continues to flow and eventually reaches the rear side plate 130, because the height of the lower surface of the rear side plate 130 is lower than the height of the hull plating 300, the lower end of the rear side plate 130 protrudes outward from the hull plating 300. Therefore, the seawater will be obstructed by the protruding lower part of the rear side plate 130. The obstruction has two effects. On the one hand, some of the obstructed seawater will flow upwards and actively enter the seagate above, thus entering the ship's cooling, ballast, and fire-fighting systems. On the other hand, the continuously obstructed seawater will form a slower flow zone outside the seagate opening (or, some of the obstructed seawater will rush forward, thus slowing down the speed of the subsequent backward-flowing seawater), thereby reducing the impact of the Bernoulli effect and making it easier for the seagate to draw in seawater, which is beneficial to the normal operation of the ship's cooling, ballast, and fire-fighting systems.

[0035] Reference Figure 1 and Figure 4 In some embodiments of the present invention, the lower end surface of the left side plate 120 is a slope 160 (left slope 160). One end of the slope 160 is connected to the lower end surface of the front side plate 110, and the lower end of the slope 160 is at the same height as the lower end surface of the front side plate 110. The other end of the slope 160 is connected to the lower end surface of the rear side plate 130, and the lower end of the slope 160 is at the same height as the lower end surface of the rear side plate 130.

[0036] The inclined surface 160 serves two purposes. First, it facilitates the cutting and processing of the entire mounting panel 100, especially when the mounting panel 100 is a one-piece structure, making it easier to process. Second, it reduces the risk of debris in the seawater getting caught on or entangled on the mounting panel 100. In particular, when the joints between the left side panel 120 and the rear side panel 130, the right side panel 140 and the rear side panel 130, the left side panel 120 and the front side panel 110, and the right side panel 140 and the front side panel 110 are all rounded at corners 170, one end of the inclined surface 160 extends to (or is located on) the rounded corner 170. At this time, the lower surface of the entire mounting panel 100 is basically a smooth structure (especially the joints between the side panels are smooth), with virtually no protrusions for debris to get caught on or entangle. Debris outside the seabed gate opening can also easily leave the seabed gate opening area from the left side panel 120 and the right side panel 140.

[0037] Reference Figure 1 and Figure 4 In some embodiments of the present invention, the lower end surface of the right side plate 140 is a slope 160 (right slope 160). One end of the slope 160 is connected to the lower end surface of the front side plate 110, and the lower end of the slope 160 is at the same height as the lower end surface of the front side plate 110. The other end of the slope 160 is connected to the lower end surface of the rear side plate 130, and the lower end of the slope 160 is at the same height as the lower end surface of the rear side plate 130.

[0038] Referring to the above-mentioned content, the settings for the right slope 160 and the left slope 160 are similar.

[0039] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments of the present invention, the grille assembly 200 includes a grille panel 210 and a plurality of grille bars 220. The outer side of the grille panel 210 is connected to the inner side of the mounting panel 100, and all the grille bars 220 are connected to the inner side of the grille panel 210. All the grille bars 220 are spaced apart from each other.

[0040] All the grid bars 220 are spaced apart from each other, that is, there will be a certain distance between any two adjacent grid bars 220, so as to leave space (gaps) for seawater to enter and exit, and the two grid bars 220 are roughly parallel.

[0041] Reference Figure 1 and Figure 3 In some embodiments of the present invention, the height of the lower end face of the grille panel 210 and the height of the lower end face of all grille bars 220 are not lower than (or higher than or equal to) the height of the lower end face of the front side panel 110.

[0042] This design ensures that after the high-speed vessel seagate grille is installed at the seagate opening, apart from a portion of the mounting plate 100 protruding outward from the hull plate 300, the other components of the high-speed vessel seagate grille (each component of the grille assembly 200) will not protrude outward from the hull plate 300.

[0043] Reference Figure 2 and Figure 4 In some embodiments of the present invention, one end of all the grille bars 220 is welded to the front side of the inner side of the grille enclosure 210, and the other end of all the grille bars 220 is welded to the rear side of the inner side of the grille enclosure 210.

[0044] With this configuration, after the high-speed ship's seagate grating is installed at the seagate opening, the grating bars 220 also extend roughly along the ship's fore-and-aft direction, which complies with relevant ship installation specifications. Furthermore, the grating bars 220 and the grating cofferdam 210 are welded and fixed, making the connection more robust and stable, and also facilitating the assembly and disassembly of the entire grating assembly 200.

[0045] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the grille assembly 200 further includes a plurality of grille ear plates 230, and the mounting enclosure 100 includes a plurality of mounting ear plates 150. The grille ear plates 230 are all connected to the outer side of the grille enclosure 210, and at least one mounting ear plate 150 is connected to the inner side of the front side plate 110, the left side plate 120, the rear side plate 130 and the right side plate 140. A grille ear plate 230 and a mounting ear plate 150 are connected by bolts.

[0046] Both the grille ear plate 230 and the mounting ear plate 150 are provided with through holes. The grille ear plate 230 and the mounting ear plate 150 are stacked one on top of the other, and the through holes of the two are roughly coaxial, which facilitates the bolts to pass through the through holes and then connect the nuts. The mounting plate 100 and the grille plate 210 are connected by ear plate bolts, which facilitates the disassembly and assembly of the grille plate 210, thereby facilitating the maintenance of the submarine gate.

[0047] Reference Figure 1 and Figure 2 In some embodiments of the present invention, all grille ear plates 230 and grille enclosure plates 210 are welded, and all mounting ear plates 150 and mounting enclosure plates 100 are welded.

[0048] The ear plate is welded to the mounting plate 100 and the grid plate 210, making the connection more secure and stable.

[0049] Reference Figures 1 to 5 According to an embodiment of the present invention, the method for installing a guide-type high-speed ship seagate grille, for installing the aforementioned guide-type high-speed ship seagate grille to the seagate opening of the ship's hull 300, includes the following steps: The mounting plate 100 is welded to the opening of the sea gate, so that the height of the lower end face of the front side plate 110 is higher than or equal to the height of the outer plate 300, and the height of the lower end face of the rear side plate 130 is lower than the height of the outer plate 300. Connect the grille assembly 200 to the mounting plate 100.

[0050] Installing a flow-guiding high-speed ship seagate grating onto a vessel can block and slow down the seawater flow outside the seagate when the vessel is traveling at high speed, reducing the Bernoulli effect and making it easier for the seagate to draw in seawater. This is beneficial for the normal operation of the ship's cooling, ballast, and fire-fighting systems. Specifically, the grating assembly 200 is connected to the mounting plate 100 by bolts to connect the mounting lugs 150 and the grating lugs 230, thereby connecting the grating plate 210 to the mounting plate 100. The grating bars 220 are pre-welded to the grating plate 210.

[0051] Reference Figures 1 to 5 According to the application of the current-guiding high-speed ship seagate grille according to the embodiments of the present invention, the aforementioned current-guiding high-speed ship seagate grille is applied to a ship.

[0052] Ships equipped with flow-guiding high-speed marine sluice gates can slow down the seawater flow outside the sluice gates during high-speed navigation, reducing the Bernoulli effect and making it easier for seawater to be drawn in. This benefits the normal operation of the ship's cooling, ballast, and fire-fighting systems. It's worth noting that, similar to the forward side plate 110 and aft side plate 130, the ship's intake sluice gate 400 also features a downward-cut angle to facilitate water intake.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A flow-guiding type high-speed ship seabed gate grille, characterized in that, include: The mounting panel includes a front panel, a left panel, a rear panel, and a right panel. The front panel, the left panel, the rear panel, and the right panel are connected to form the mounting panel. The upper surface of the front panel is at the same height as the upper surface of the rear panel, and the lower surface of the front panel is higher than the lower surface of the rear panel. A grille assembly is connected to the inside of the mounting enclosure.

2. The flow-guiding high-speed ship seabed gate grille according to claim 1, characterized in that, The lower end face of the left side panel is a slope. One end of the slope is connected to the lower end face of the front side panel, and the same height as the lower end face of the front side panel. The other end of the slope is connected to the lower end face of the rear side panel, and the same height as the lower end face of the rear side panel.

3. The flow-guiding high-speed ship seabed gate grille according to claim 1, characterized in that, The lower end face of the right side plate is a slope. One end of the slope is connected to the lower end face of the front side plate, and the same height as the lower end face of the front side plate. The other end of the slope is connected to the lower end face of the rear side plate, and the same height as the lower end face of the rear side plate.

4. The flow-guiding high-speed ship seabed gate grille according to claim 1, characterized in that, The grille assembly includes a grille panel and a plurality of grille strips. The outer side of the grille panel is connected to the inner side of the mounting panel, and all the grille strips are connected to the inner side of the grille panel. All the grille strips are spaced apart from each other.

5. The flow-guiding high-speed ship seabed gate grille according to claim 4, characterized in that, The height of the lower end face of the grille panel and the height of the lower end faces of all the grille bars are not lower than the height of the lower end face of the front side panel.

6. The flow-guiding high-speed ship seabed gate grille according to claim 4, characterized in that, One end of all the grille bars is welded to the front side of the inner side of the grille panel, and the other end of all the grille bars is welded to the rear side of the inner side of the grille panel.

7. The flow-guiding high-speed ship seabed gate grille according to claim 4, characterized in that, The grille assembly also includes multiple grille ear plates, and the mounting plate correspondingly includes multiple mounting ear plates. The grille ear plates are all connected to the outer side of the grille plate. The inner side of the front plate, the left plate, the rear plate and the right plate are all connected to at least one mounting ear plate. One grille ear plate and one mounting ear plate are connected by bolts.

8. The flow-guiding high-speed ship seabed gate grille according to claim 7, characterized in that, All the aforementioned grille ear plates and grille surround plates are welded together, and all the aforementioned mounting ear plates and mounting surround plates are welded together.

9. A method for installing a flow-guiding high-speed vessel subsea gate grille, as described in any one of claims 1 to 8, onto the subsea gate opening of the vessel's hull plating, characterized in that, The installation method of the flow-guiding high-speed ship seabed gate grille includes the following steps: The mounting plate is welded to the opening of the seabed gate, with the front plate facing the bow of the ship and the rear plate facing the stern of the ship. The height of the lower end of the front plate is higher than or equal to the height of the outer plate, and the height of the lower end of the rear plate is lower than the height of the outer plate. Connect the grille assembly to the mounting plate.

10. An application of a flow-guiding high-speed ship seabed gate grille, characterized in that, The flow-guiding high-speed ship seabed gate grille as described in any one of claims 1 to 8 is applied to a ship.

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