CN220422785U

CN220422785U - Side open pore structure of breeding engineering ship

Info

Publication number: CN220422785U
Application number: CN202321891287.2U
Authority: CN
Inventors: 赵云鹏; 薛博茹
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-02-02
Anticipated expiration: 2033-07-18

Abstract

The utility model provides a side open pore structure of a breeding ship, wherein a breeding cabin is arranged in the breeding ship, two sides of the breeding ship are respectively provided with at least two rows of sea ports, and the sea ports are communicated with the breeding cabin; the sea openings on the two chord sides are oppositely arranged, the axes are parallel, and the included angle beta between the axes and the longitudinal central axis of the culture engineering ship is 20-30 degrees. The bottom plate of the culture cabin is provided with a bottom outlet communicated with the outside of the culture worker ship. Compared with the conventional basic structure with openings on the side of the ship, the average flow velocity and the flow velocity distribution uniformity of the culture cabin are improved greatly, the flow field form is changed from disordered vortex to circular flow, the uniform distribution of nutrient feed and dissolved oxygen is effectively improved, the discharge efficiency of residual feed and feces is improved, the effective utilization of culture space is greatly improved, and basic guarantee is provided for welfare aquaculture.

Description

Side open pore structure of breeding engineering ship

Technical Field

The utility model relates to the technical field of breeding ships, in particular to a side open pore structure of a breeding ship.

Background

In recent years, the exploration and development of the deep and open sea culture in China is rapid. The maritime work ship is novel deep-open sea maritime cultivation equipment capable of really realizing 'cultivation+capturing+adding', a 'cruising type shipborne cabin new cultivation mode' is created, the maritime work ship has the capability of effectively avoiding natural risks such as typhoons and the like and the advantage of full-season cultivation of 'south-north relay', and the maritime work ship becomes a global research and development hot spot. The side open-pore type aquaculture engineering ship is one of the main types of the current aquaculture engineering ship, is generally reformed from an old bulk cargo ship, as shown in fig. 1-3, a cargo ship at the lower part of a deck is changed into an aquaculture cabin 1 ', sea holes 2 ' are formed in the side of a ship body, the axis of each sea hole 2 ' is perpendicular to the central axis of the ship body, and water body exchange in the cabin and residual bait, excrement and the like discharge are realized by means of external ocean currents; the upper part of the deck is additionally provided with a catching facility and an aquatic product processing workshop. On one hand, the construction cost is saved; on the other hand, the pressure of old ship aging is relieved, cyclic utilization is realized, and sustainable development of the aquaculture industry is promoted.

At present, the current broadside open-pore type aquaculture engineering ship is poor in flow field condition in the aquaculture cabin due to the fact that the limited water exchange rate of the broadside open area of the ship body is low, and the existing broadside open-pore type aquaculture engineering ship is insufficient in advantages of aquaculture efficiency, disease prevention and control and the like, and is difficult to meet aquaculture requirements of high quality and high yield. And the plug flow or the flow assisting device arranged in the cabin not only affects the cultivation volume, but also greatly increases the energy consumption. Therefore, how to improve the flow field condition in the culture cabin of the aquaculture engineering ship and improve the water exchange rate and the pollution collection and discharge performance through the design optimization of the foundation structure is an important technical problem to be solved urgently in the field, and is also an important condition for realizing intensive development of a novel mode of the power-assisted aquaculture engineering ship and pushing aquaculture to go to deep open sea.

Disclosure of Invention

According to the technical problems, the open-pore structure on the side of the shipboard of the breeding industry is provided. The utility model mainly changes the axis direction of the sea-going hole, realizes the improvement of the average flow velocity and the uniformity of the flow velocity of the sea-going hole, and changes the flow field in the culture cabin into a circular flow state.

The utility model adopts the following technical means:

the side open pore structure of the breeding ship is provided with a breeding cabin, two sides of the breeding ship are respectively provided with at least two rows of sea openings corresponding to the breeding cabin, and the sea openings are communicated with the breeding cabin;

the sea openings on the two chord sides are oppositely arranged, the axes are parallel, and the included angle beta between the axes and the longitudinal central axis of the culture engineering ship is 20-30 degrees. The longitudinal central axis is a connecting line of the midpoint of the stem line and the midpoint of the stern line, and the connecting line is perpendicular to the stem line and the stern line.

The utility model also discloses a bottom outlet processed on the bottom plate of the cultivation bin, which has the following scheme: the bottom plate of the culture cabin is provided with a bottom outlet communicated with the outside of the culture worker ship.

The aquaculture engineering ship is refitted from an old bulk carrier and used for aquaculture, an original part of the cargo holds are refitted into the aquaculture tanks, and the rest of the cargo holds are reserved and serve as ballast water tanks of the aquaculture engineering ship. The culture worker ship can also be built for a new ship.

Compared with the conventional basic structure with openings on the side of the ship, the average flow velocity and the flow velocity distribution uniformity of the culture cabin are greatly improved, the flow field shape is changed from random eddy to circular flow, the flow state is similar to that in a circular culture cabin or a rectangular round corner culture cabin in land-based culture, the uniform flow field shape can effectively improve the uniform distribution of nutrition feed and dissolved oxygen, the discharge efficiency of residual bait and feces is improved, the effective utilization of culture space is greatly improved, and basic guarantee is provided for welfare aquaculture.

For the reasons, the utility model can be widely popularized in the fields of culture boats and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a conventional side opening type farming ship according to the background of the utility model.

FIG. 2 is a top view of a conventional side opening type marine farming vessel according to the background of the utility model.

FIG. 3 is a schematic view of an opening of a culture cabin in the background of the utility model.

Fig. 4 is a schematic view of a side open-cell structure of a shipboard side of a farming tool according to an embodiment of the present utility model.

Fig. 5 is a top view of a side open cell structure of a marine farming vessel according to an embodiment of the present utility model.

FIG. 6 is a schematic view of a model structure of a culture cabin in an embodiment of the utility model.

Fig. 7 is a cross-sectional view of fig. 6 at y=0.

FIG. 8 is a graph showing the average flow velocity of each section in a culture cabin model according to the specific embodiment of the utility model.

FIG. 9 is a graph showing the flow velocity uniformity of each section in a culture cabin model according to the specific embodiment of the utility model.

FIG. 10 is a graph showing a comparison of flow field velocity distribution characteristics of a cross section of a sea opening in a lower layer of a culture cabin model according to an embodiment of the utility model.

FIG. 11 is a graph showing a comparison of the speed distribution characteristics of a cross-sectional flow field in a portion of a culture tank model between an upper sea port and a lower sea port in an embodiment of the utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 4 to 11, a side open cell structure of a marine vessel is provided, the marine vessel is modified from an old bulk carrier for aquaculture, the original cargo hold is modified into a marine tank 1, and the remaining cargo holds remain as ballast water tanks of the marine vessel.

The marine culture system comprises a marine culture cabin 1, wherein two sides of the marine culture cabin 1 are respectively provided with at least two rows of marine communication ports 2 (two rows are arranged in the specific embodiment), and the marine communication ports 2 are communicated with the marine culture cabin 1;

the sea ports 2 on the two chord sides are oppositely arranged, the axes are parallel, and the included angle beta between the axes and the longitudinal central axis of the culture engineering ship is 20-30 degrees. The bottom plate of the culture cabin 1 is provided with a bottom outlet 3 communicated with the outside of the culture engineering ship.

The average flow velocity and the flow velocity distribution uniformity of the sea opening and the flow state in the culture cabin are verified by adopting a culture cabin model, and the scale of the model and the actual culture cabin is 1:40. the model effectively breeds water body 0.3528m3, and the breeding liquid tank model is 0.46m high, and effectively breeds (the water body is 0.4m high, and other specific dimensions are shown in the following figures 6 and 7.

As apparent from FIG. 8, in the culture cabin model, the average flow rate of each section is improved by 33.38% -193.21% compared with that of the conventional structure.

As apparent from FIG. 9, in the culture cabin model, the uniformity of the flow velocity of each section is improved by 3.14-28.00% compared with that of the conventional structure.

As can be seen from fig. 8 and 9, the water exchange rate between the culture cabin and the outside is improved, and the aquaculture requirement of high quality and high yield is met.

As is apparent from fig. 10 to 11, in the culture cabin model, the flow pattern is a circular flow pattern, whereas the flow pattern of the conventional structure is a random flow pattern with more vortex. The uniform flow field shape can effectively improve the uniform distribution of nutrient feed and dissolved oxygen, improve the discharge efficiency of residual bait and feces, greatly increase the effective utilization of the culture space and provide basic guarantee for welfare aquaculture.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The open pore structure of the side of the breeding ship is characterized in that a breeding cabin is arranged in the breeding ship, two sides of the breeding ship are respectively provided with at least two rows of sea ports corresponding to the breeding cabin, and the sea ports are communicated with the breeding cabin;

the sea openings on the two chord sides are oppositely arranged, the axes are parallel, and the included angle beta between the axes and the longitudinal central axis of the culture engineering ship is 20-30 degrees.

2. A side-port structure according to claim 1, wherein the bottom plate of the tanks has a bottom outlet communicating with the outside of the tanks.

3. A side-port structure according to claim 1, wherein said ship is adapted from an old bulk carrier for aquaculture, an original portion of the cargo holds being adapted to said tanks, and the remaining cargo holds being reserved as ballast tanks for the ship.