Simplified integrated seawater suction structure device

Abstract

The invention discloses a simplified integrated seawater suction structure device which comprises a suction pipe body, and the water inlet end of the suction pipe body penetrates through a ship bottom plate to be communicated with the outside. The suction pipe body comprises a suction pipe, two side plates and an edge opening pipe, a flange is arranged on the periphery of the water outlet end of the suction pipe, the two side plates are arranged on the outer side, close to the water inlet end, of the suction pipe in a spaced mode, and the edge opening pipe is arranged above the two side plates. A suction grid is arranged in the water inlet end of the suction pipe body. The suction pipe body, the suction grating, the welding seat, the sea valve, the blow-off valve and the ventilation valve are simplified and integrated into a single small-size device, the suction pipe body replaces an existing box body structure and forms a water inlet channel for system equipment in a ship cabin to take water, meanwhile, the sea valve, the blow-off valve and the ventilation valve are connected in an integrated mode, and therefore the whole device is convenient to use. And the structure is simple and small, parts of the device are easy to manufacture, and the compactness of the device is improved through flexible arrangement.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship water intake technology, in particular to a simplified integrated seawater suction structure device. BACKGROUND

[0002] In the piping system of the marine engine, the cooling system and the water fire extinguishing system are relatively important systems. These systems all need to suck seawater outside the hull through a water pump, wherein the cooling system is used to cool mechanical equipment, remove heat, and make the mechanical equipment not work due to high temperature, mainly including a main engine seawater cooling system, a generator seawater cooling system, an air conditioner seawater cooling system, a rudder propeller seawater cooling system, and a stabilizer fin seawater cooling system, etc. The water fire extinguishing system is used for fire extinguishing, temperature reduction, miscellaneous use, etc., and the main functions include fire extinguishing for the engine room, fire extinguishing for the whole ship, washing of anchor chains, washing of decks, washing of seawater suction grates, water mist temperature reduction, water mist spraying, cabin spraying, and water supply for foam fire extinguishing, etc. In order to meet these functions, seawater needs to be sucked from outside the hull through a water pump. When seawater is sucked from outside the hull, a seawater filter, a suction valve, a suction pipe, a seawater valve box, a seawater suction grate, etc. are needed to be set, the seawater is filtered once through the seawater suction grate, filtered twice through the seawater filter, and then sent to the water pump inlet. Therefore, the seawater valve box is an indispensable important part of the marine engine.

[0003] In order to realize seawater extraction, a seawater valve box structure is usually set in the traditional design. The valve box is generally enclosed by the hull structure, and the seawater suction pipe, the suction grate, the blow-off valve, the blow-off pipe, and the breather valve, etc. are arranged inside, forming a complete seawater suction channel (as shown in Figure 9 ). However, the existing seawater valve box occupies a large space, needs to be made in advance in the hull section, and is greatly limited in space for the arrangement of the pipe in the later stage, which is not conducive to the comprehensive utilization of the limited space. Therefore, a new type of seawater suction device with a more simplified structure, a more intensive space, and a more convenient installation is urgently needed to improve the rationality and economy of the overall design of the ship. SUMMARY

[0004] The purpose of the present application is to provide a simplified integrated seawater suction structure device, which can greatly reduce the occupied space, does not need to be made in advance in the hull section, and can be flexibly adjusted to the best position after the comprehensive arrangement of the pipe equipment, etc.

[0005] The technical scheme adopted by the present application is:

[0006] The application discloses a simplified integrated seawater suction structure device, which comprises a suction pipe body, the water inlet end of the suction pipe body is communicated with the outside through a ship bottom plate, the suction pipe body comprises suction pipes, side plates and an open edge pipe which are fixedly connected with each other, the outer periphery of the water outlet end of the suction pipe is provided with a flange, the side plates are provided in two, the two side plates are arranged on the outer side of the suction pipe close to the water inlet end, and the open edge pipe is arranged above the two side plates, and the water inlet end of the suction pipe body is internally provided with a suction grid.

[0007] Further, the height H1 between the suction pipe body closest to the bow of the ship and the ship bottom plate is smaller than the height H2 between the suction pipe body closest to the stern of the ship and the ship bottom plate.

[0008] Further, the included angle alpha between the axis of the suction grid along the length direction and the heading of the ship is an acute angle.

[0009] Further, in another preferred embodiment, a welding seat is arranged on the suction pipe body.

[0010] Further, a sea valve is arranged on the welding seat, the sea valve is communicated with the outside atmosphere through a pipeline I, the pipeline I is provided with a gas permeation valve for controlling whether the pipeline I is conducted or not, the pipeline I is connected with compressed air through a pipeline II, and the pipeline II is provided with a blowing valve for controlling whether the pipeline II is conducted or not.

[0011] The application has the advantages that the suction pipe body, the suction grid, the welding seat, the sea valve, the blowing valve and the gas permeation valve are integrated into a single small-sized device, the suction pipe body replaces the existing box structure, forms a water inlet channel by itself for the system equipment in the cabin of the ship to take water, the sea valve, the blowing valve and the gas permeation valve are integrated and connected through a welding seat, and the functions of gas permeation and blowing are realized. The application has the advantages of simple structure, simple manufacturing of device parts, improvement of compactness of the device through flexible arrangement, reduction of material consumption and reduction of manufacturing and installation costs, and is especially suitable for small ships with small space. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0013] Figure 1 It is a structural schematic diagram of the embodiment 1 of the application.

[0014] Figure 2is a bottom view of the present invention. Figure 1 is a bottom view of the present invention.

[0015] Figure 3 is a first size schematic diagram of the present invention.

[0016] Figure 4 is a first size three-dimensional schematic diagram of the present invention.

[0017] Figure 5 is a second size schematic diagram of the present invention.

[0018] Figure 6 is a structural schematic diagram of embodiment 2 of the present invention.

[0019] Figure 7 is a breather flow schematic diagram of embodiment 2 of the present invention.

[0020] Figure 8 is a blowdown flow schematic diagram of embodiment 2 of the present invention.

[0021] Figure 9 is a structural arrangement diagram of a seawater valve box in the prior art.

[0022] In the drawings, flange 1, suction pipe 2, side plate 3, open edge pipe 4, suction grille 5, welding seat 6, sea valve 7, blowdown valve 8, breather valve 9. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the present invention in detail, the preferred embodiments of the present invention are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5 , a simplified integrated seawater suction structure device of embodiment 1 includes a suction pipe body, the water inlet end of the suction pipe body communicates with the outside through the ship bottom plate, and the outer periphery is welded with the ship bottom plate to form a whole. The suction pipe body includes two suction pipes 2, side plates 3 and open edge pipes 4 fixedly connected with each other, the suction pipe 2 is vertically arranged, the outer periphery of the water outlet end is provided with a flange 1 for docking an external suction valve. The side plate 3 is provided with two, the two side plates 3 are arranged on the outer side of the suction pipe 2 close to the water inlet end, the open edge pipe 4 is arranged above the two side plates 3 and is fixedly connected with the suction pipe 2, the top and right side of the two side plates 3; or from Figure 4It can be seen that the suction pipe 2, the side plate 3 and the open edge pipe 4 can be integrally formed and enclosed with the suction pipe 2 to form a suction pipe body with an open bottom end (i.e. a water inlet end). The water inlet end of the suction pipe body is internally provided with a suction grille 5, and the left and right sides of the suction grille 5 are fixedly installed with the suction pipe 2 and the open edge pipe 4 respectively through mounting plates and bolts. The open edge pipe 4 is arranged close to the bow of the ship, and the distance between the open edge pipe 4 and the suction pipe 2 can be appropriately increased according to the actual design, and the size of the suction grille 5 can be increased to ensure that the flow area of seawater passing through the suction grille 5 is not less than 3 times.

[0026] As a preferred example, the height H1 between the suction pipe body closest to the bow of the ship and the bottom plate of the ship is less than the height H2 between the suction pipe body closest to the stern of the ship and the bottom plate of the ship. In this example, the H1 between the bottom of the open edge pipe 4 and the bottom plate of the ship is 10 mm (about the height of the weld), the suction pipe 2 extends outside the bottom plate of the ship, the H2 between the bottom of the suction pipe 2 and the bottom plate of the ship is 30 mm, the suction grille 5 has an included angle α between the axis in the length direction of the suction grille 5 and the heading of the ship, and the angle α is 5°. The included angle is designed to better suck seawater, especially for high-speed ships, which can have a good water scooping effect. The highest height H3 of the suction pipe body can be adjusted according to actual design needs.

[0027] As described above, in terms of material or specification selection: the flange 1 can be selected according to GB569 or GB2501, or a single-sided seat plate can be selected according to GB11693. The suction pipe 2 and the open edge pipe 4 are selected according to the conventional pipe specification of GB8163-2008 seamless steel pipe, and the thickened pipe that meets the specification requirements, or the corresponding stainless steel pipe or aluminum alloy pipe is selected according to the pipe material, and the suction pipe 2 can be provided with necessary webs or knees as needed. The side plate 3, the suction grille 5 and the mounting plate must be selected from the same material as the suction pipe 2 (or the open edge pipe 4) for welding. The bolts can be selected according to GB / T5782-2000. Therefore, the material selection of the present application is wide, which can use economical and practical 20# seamless steel pipe and ordinary steel plate to make, and then the whole is hot-dip galvanized; or 316L stainless steel, HDR duplex stainless steel, B10 copper-nickel material, etc. with better corrosion resistance can be used; or 5083 aluminum alloy material can be selected according to aluminum alloy ships, etc., to meet the needs of different types of ships and use environment.

[0028] As Figure 3 and Figure 5 , two different size and specification examples of the seawater suction structure device are given (both applied to a pipeline with a nominal diameter of DN100), unit: mm, Figure 4The three-dimensional model is shown in the first size example. It should be noted that the seawater suction structure device can be designed according to the requirements of the schematic diagram or the calculation book, and the appropriate diameter can be designed. When the diameter changes, the size of the pipe and the structure will be increased or decreased accordingly. For example, when the diameter is large and the length size is limited, or the diameter is small and the flow area of the suction port needs to be increased, the size of the suction pipe 2 can be increased, that is, the width is increased and the length is reduced, and the flange is changed to a single seat plate form, so that the connection size of the suction valve is not changed. The flange or single seat plate of the connecting piece can be flexibly used to adapt to various specifications of the diameter.

[0029] Embodiment 2

[0030] Based on the foregoing embodiment 1, as a further preferred example, a simplified integrated seawater suction structure device of embodiment 2 further comprises a welding seat 6, specifically, the welding seat 6 can be selected according to the CB*53-80 standard; the welding seat 6 is provided with a sea valve 7, the sea valve 7 is connected with the external atmosphere through a pipeline I, the pipeline I is provided with a breather valve 9 for controlling whether it is open or not; the pipeline I is connected with compressed air or hot water through a pipeline II, the pipeline II is provided with a blowing valve 8 for controlling whether it is open or not.

[0031] Generally, when the ship is running, a large amount of bubbles will be generated at the bottom of the ship, such as a large amount of bubbles generated when the propeller is working, and when the seawater is sucked, if the seawater containing a large amount of bubbles is transported to the pump group, it will cause the pump pressure difference alarm, resulting in poor operation of the cooling system, insufficient heat exchange, causing the equipment to be heat exchanged to be used at a reduced load or to be shut down, affecting the normal navigation and normal operation of the ship.

[0032] Therefore, in this embodiment, by providing a welding seat 6 on the suction pipe body and connecting with the pipeline I, the other end of the pipeline I is led to above the water surface, the bubbles in the water entering the suction pipe body can be discharged to realize the air permeation function, and the influence on the operation of the cooling system is avoided; the pipeline II can also be connected with compressed air to blow away the garbage that may accumulate in the suction pipe body, to realize the blowing function. In addition, in addition to being connected with compressed air, the pipeline II can also be connected with fire-fighting water or hot water, which can melt the ice inside the suction pipe body. It should be noted that in order to reduce the risk of water leakage, the sea valve 7 needs to be directly installed on the suction pipe body, and the blowing valve 8 needs to have a check function to prevent seawater from flowing back.

[0033] The air permeation process of embodiment 2 is shown in the figure: close the blowing valve 8, open the sea valve 7, and open the breather valve 9 to perform upward air permeation.

[0034] The blowing process of embodiment 2 is shown in the figure: when blowing, close the breather valve 9, open the sea valve 7, and open the blowing valve 8 to blow compressed air.

[0035] In other alternative embodiments, the sea valve 7 and the air valve 9 can also be replaced by L-shaped three-way cocks, and when the air function or (and) the blowing function is not needed, the corresponding pipeline and valve are cancelled.

[0036] In the description of the application, unless the context clearly requires otherwise, throughout the application the terms "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

[0037] In the description of the application, it should be understood that the terms "first", "second", and the like are used only for the purpose of description, and should not be construed as indicating or implying relative importance. In addition, in the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] In the description of the application, for easy description, spatial relative terms such as "inner", "outer", "under", "lower", "lower", "upper", "upper" and the like are used herein to describe the relationship of one element or feature illustrated in the figure with another element or feature. It will be understood that the spatial relative terms can be intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below" or "under" the other element or feature will then be positioned "above" the other element or feature. Thus, the example term "below" can include both the upward and downward orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

Claims

1. A simplified integrated seawater intake structure device, characterized in that: The system includes a suction pipe body, the inlet end of which passes through the bottom plate of the ship and communicates with the outside. The suction pipe body includes two suction pipes (2), side plates (3) and open pipes (4) that are fixedly connected to each other. A flange (1) is provided on the outer periphery of the outlet end of the suction pipe (2). Two side plates (3) are provided, and the two side plates (3) are spaced apart on the outer side of the suction pipe (2) near the inlet end. The open pipe (4) is located above the two side plates (3). A suction grid (5) is provided inside the inlet end of the suction pipe body.

2. The simplified integrated seawater intake structure device according to claim 1, characterized in that: The height H1 between the part of the suction tube body closest to the bow and the bottom plate is less than the height H2 between the part of the suction tube body closest to the stern and the bottom plate.

3. A simplified integrated seawater intake structure device according to claim 1, characterized in that: The angle α between the axis of the intake grille (5) along its length and the heading of the ship is an acute angle.

4. A simplified integrated seawater intake structure device according to claim 1, characterized in that: A welding seat (6) is connected to the suction tube body.

5. A simplified integrated seawater intake structure device according to claim 4, characterized in that: The welding seat (6) is provided with a sea valve (7), which is connected to the outside atmosphere through pipe I. Pipe I is provided with a vent valve (9) for controlling whether it is open. Pipe I is connected to compressed air through pipe II. Pipe II is provided with a blow-out valve (8) for controlling whether it is open.

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