A breeding pond

Abstract

The utility model provides a breeding pond, aiming at solving the technical problems that the existing breeding ponds have low space utilization or large dead zones, which lead to the easy accumulation of biological solids at the bottom of the breeding pond. The breeding pond comprises: a pond body, including a pond bottom and a pond wall arranged on the pond bottom; the pond wall comprises four straight walls and four arc walls; the straight walls are symmetrically arranged in a group of two, and two adjacent straight walls are connected by the arc wall; a drainage structure and a water inlet structure are arranged on the pond body; the drainage structure comprises a drainage pipe arranged at the middle position of the pond bottom; the pond bottom is sloped from the pond wall to the drainage pipe; the water inlet structure is a jet. The four long elliptical side walls formed by the four straight walls and the four arc walls of the breeding pond of the utility model can bring good guidance to the circulating water in the breeding pond, thereby improving the circulation characteristics of the circulating water body, and increasing the utilization rate of the breeding space while ensuring a certain self-purification ability.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a breeding pond. Background Art

[0002] Reasonable optimization of aquaculture ponds is a key measure to solve the problem of limited resource input constraints and the need for efficient output. It is also an important basis for achieving the goal of recycling water resources, reducing waste discharge, and producing aquatic products efficiently and safely. In the actual aquaculture process, although circular aquaculture ponds have good flow field characteristics and self-cleaning capabilities, their space utilization rate is low, which greatly hinders the economic benefits of aquaculture; rectangular aquaculture ponds have a lower construction cost, but have a larger area of ​​low mixing area, also known as dead zone. The larger dead zone makes it easy for biosolids (fecal solids and unfermented feed) to accumulate at the bottom of the aquaculture pond. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a breeding pond, which solves the technical problems of low space utilization or large dead zone in the existing breeding ponds, which leads to the easy accumulation of biological solids at the bottom of the breeding pond.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A breeding pond comprises: a pond body, comprising a pond bottom and a pond wall arranged on the pond bottom; the pond wall comprises four straight walls and four arc walls; the straight walls are symmetrically arranged in pairs, and two adjacent straight walls are connected by the arc wall; a drainage structure and a water inlet structure are arranged on the pond body; the drainage structure comprises a drainage pipe arranged at the middle position of the pond bottom; the pond bottom is arranged in a slope from the pond wall to the drainage pipe; and the water inlet structure is a jet.

[0006] Compared with the traditional circular breeding pond, the breeding pond of the utility model increases the utilization rate of the breeding space. Compared with the traditional square structure breeding pond, the breeding pond of the utility model can provide good guidance for the circulating water in the breeding pond through four long elliptical side walls formed by four straight walls and four arc walls, thereby improving the circulation characteristics of the circulating water body, and increasing the utilization rate of the breeding space while ensuring a certain self-purification ability. At the same time, with the reasonable layout of the water inlet structure, the impact of the incident water flow is changed to affect the movement circulation of the water body in the pool, the removal efficiency of solid particles in the pool, and the distribution of dissolved oxygen in the pool, and try to avoid the low flow rate area and poor hydraulic mixing conditions that lead to the generation of dead zone volume and the deposition of solid waste at the bottom of the pool.

[0007] Optionally, the water inlet structure includes a double water inlet pipe, and the double water inlet pipe includes a first water inlet pipe and a second water inlet pipe, and the first water inlet pipe and the second water inlet pipe are respectively arranged on a group of the straight walls arranged opposite to each other.

[0008] Optionally, the first water inlet pipe and the second water inlet pipe are symmetrically arranged in the middle position of a group of straight walls; the first flow area, the second flow area, the third flow area and the fourth flow area are formed on the inner sides of the four corners of the pool body; the jet direction of the first water inlet pipe is toward the first flow area, and the jet direction of the second water inlet pipe is toward the third flow area.

[0009] Optionally, the jet angles of the first water inlet pipe and the second water inlet pipe are 0° to 10°.

[0010] Optionally, the jet angles of the first water inlet pipe and the second water inlet pipe are 0°.

[0011] Optionally, a first flow area, a second flow area, a third flow area and a fourth flow area are formed on the inner sides of the four corners of the pool body; the water inlet structure includes a single water inlet pipe, and the single water inlet pipe is arranged in any flow area.

[0012] Optionally, the jet angle of the water inlet single tube is 25°.

[0013] Optionally, the ratio of the horizontal distance C from the center position of the single water inlet pipe to the wall of the breeding pond to the length B of the short side of the breeding pond is equal to 0.07-0.09, and the jet angle of the single water inlet pipe is 25°.

[0014] Optionally, the diameter-to-depth ratio of the pool body is 6:1.

[0015] Optionally, the slope of the pool bottom is 12°.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] Compared with the traditional circular breeding pond, the breeding pond of the utility model increases the utilization rate of the breeding space. Compared with the traditional square structure breeding pond, the breeding pond of the utility model can provide good guidance for the circulating water in the breeding pond through four long elliptical side walls formed by four straight walls and four arc walls, thereby improving the circulation characteristics of the circulating water body, and increasing the utilization rate of the breeding space while ensuring a certain self-purification ability. At the same time, with the reasonable layout of the water inlet structure, the impact of the incident water flow is changed to affect the movement circulation of the water body in the pool, the removal efficiency of solid particles in the pool, and the distribution of dissolved oxygen in the pool, and try to avoid the low flow rate area and poor hydraulic mixing conditions that lead to the generation of dead zone volume and the deposition of solid waste at the bottom of the pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The utility model is a structural schematic diagram of an embodiment of a breeding pond.

[0020] Figure 2 This is a simulation analysis diagram of the relationship between different jet angles of the double water inlet pipes and the water flow rate in the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of Example 3.

[0022] Figure 4 This is a simulation analysis diagram of the relationship between different jet angles of the single water inlet pipe and the water flow rate in the utility model.

[0023] Figure 5 It is a schematic diagram of different angles of the single water inlet pipe in the utility model.

[0024] Figure 6 It is a schematic diagram of the sewage discharge effect of different angles and different inlet diameter ratios of the single water inlet pipe in the utility model.

[0025] Figure 7 It is a schematic diagram of the sewage discharge effect of different slopes of the pool bottom in the utility model.

[0026] Figure 8 This is a schematic diagram of the structure of Example 6.

[0027] Figure numerals: 1, pool body; 1a, first flow area; 1b, second flow area; 1c, third flow area; 1d, fourth flow area; 11, pool bottom; 111, sewage collecting trough; 112, sewage collecting area; 113, pipeline; 12, pool wall; 121, straight wall; 122, arc wall; 2, drain pipe; 31, first water inlet pipe; 32, second water inlet pipe; 4, single water inlet pipe. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the description of the embodiments of the present utility model application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present utility model application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model application can be understood according to the specific circumstances.

[0032] In the embodiments of the utility model application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the utility model application. In order to simplify the disclosure of the embodiments of the utility model application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the utility model application. In addition, the embodiments of the utility model application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] like Figure 1 As shown, an embodiment of the utility model application provides a breeding pond, including a pond body 1, the pond body 1 includes a pond bottom 11 and a pond wall 12 arranged on the pond bottom 11, the pond wall 12 includes four straight walls 121 and four arc walls 122, the four straight walls 121 are symmetrically arranged in pairs as a group, and two adjacent straight walls 121 are connected by the arc wall 122, and the arc wall 122 is an elongated elliptical structure, so that the four corners of the pond wall 12 form elongated elliptical side walls.

[0037] The pool body 1 is provided with a drainage structure and a water inlet structure. The drainage structure includes a drainage pipe 2, which is connected to the middle of the bottom of the pool bottom 11. The pool bottom 11 has a slope, that is, the inner surface of the pool bottom 11 is inclined downward from the pool wall 12 toward the drainage pipe 2. The water inlet structure includes a double water inlet pipe or a single water inlet pipe, and water flows into the pool body 1 through the double water inlet pipe or the single water inlet pipe.

[0038] Compared with the traditional circular breeding pond, the breeding pond of the utility model increases the utilization rate of the breeding space. Compared with the traditional square structure breeding pond, the breeding pond of the utility model can provide good guidance for the circulating water in the breeding pond through the four long elliptical side walls formed by the four straight walls 121 and the four arc walls 122, thereby improving the circulation characteristics of the circulating water body, and increasing the utilization rate of the breeding space while ensuring a certain self-purification ability.

[0039] Example 2

[0040] The hydrodynamic characteristics inside the aquaculture pond are not only affected by the pond structure, but the optimization of the inlet and outlet structures can also improve the flow field conditions inside the aquaculture pond. In particular, the reasonable layout of the water inlet structure can most significantly improve the flow field environment inside the aquaculture pond.

[0041] Based on Example 1, Figure 1 As shown, an embodiment of the utility model application provides a water inlet structure, which includes a double water inlet pipe.

[0042] Specifically,

[0043] Two adjacent straight walls 121 are connected by an arc wall 122 with an elongated elliptical structure, so that a first flow area 1a, a second flow area 1b, a third flow area 1c and a fourth flow area 1d are formed inside the four corners of the cell body 1 corresponding to the arc wall 122.

[0044] The water inlet double pipe includes a first water inlet pipe 31 and a second water inlet pipe 32. The first water inlet pipe 31 and the second water inlet pipe 32 are respectively arranged on a group of oppositely arranged straight walls 121.

[0045] Optionally, the first water inlet pipe 31 and the second water inlet pipe 32 are symmetrically arranged on a group of straight walls 121 .

[0046] Optionally, the first water inlet pipe 31 and the second water inlet pipe 32 are located in the middle of the straight wall 121 .

[0047] Optionally, the water inlet double pipe adopts a straight double pipe water inlet method.

[0048] Furthermore, the jet angle of the first water inlet pipe 31 and the second water inlet pipe 32 is in the range of 0° to 10°. This is conducive to obtaining a higher water flow rate and a more uniform flow field. Preferably, the jet angle of the first water inlet pipe 31 and the second water inlet pipe 32 is 0°. The jet angle is the angle between the water flow direction and the straight wall 121.

[0049] As an implementation scenario, in this scenario, refer to Figure 1 As shown, the jet direction of the first water inlet pipe 31 is toward the first flow area 1a, and the jet direction of the second water inlet pipe 32 is toward the third flow area 1c, and the water body circulates counterclockwise.

[0050] References Figure 2 The relationship between the different jet angles of the first water inlet pipe 31 and the second water inlet pipe 32 and the water flow rate is shown. It can be concluded that when the jet angle of the first water inlet pipe 31 and the second water inlet pipe 32 is in the range of 0° to 10°, it is beneficial to obtain a higher water flow rate and a more uniform flow field, especially when the jet angle is 0°, the effect is optimal. Figure 2 α is the jet angle, which is the angle between the water flow direction and the water inlet wall. The utility model changes the incident water flow impulse by optimizing the water inlet structure to affect the movement circulation of the water body in the pool, the solid particle removal efficiency in the pool and the dissolved oxygen distribution in the pool, and tries to avoid the low flow rate area and poor hydraulic mixing conditions that lead to the generation of dead zone volume and the deposition of solid waste on the bottom of the pool.

[0051] Example 3

[0052] The hydrodynamic characteristics inside the aquaculture pond are not only affected by the pond structure, but the optimization of the inlet and outlet structures can also improve the flow field conditions inside the aquaculture pond. In particular, the reasonable layout of the water inlet structure can most significantly improve the flow field environment inside the aquaculture pond.

[0053] Based on Example 1, Figure 3 As shown, the embodiment of the utility model application provides a water inlet structure, which includes a single water inlet pipe 4. Specifically, two adjacent straight walls 121 are connected by an arc wall 122 in an oblong structure, so that a first flow area 1a, a second flow area 1b, a third flow area 1c and a fourth flow area 1d are formed on the inner side of the four corners of the pool body 1 corresponding to the arc wall 122. The single water inlet pipe 4 is arranged at one of the flow areas.

[0054] Optionally, the single water inlet pipe 4 adopts a single-tube arc wall water inlet method.

[0055] As an implementation scenario, in this scenario, the flow field characteristics of the aquaculture pond system are studied by using different jet angles of the single water inlet pipe 4. Figure 3-5 As shown, the results show that when the jet angle of the single water inlet tube 4 is 25°, a higher water flow velocity and a more uniform flow field are obtained.

[0056] As another implementation scenario, in this scenario, the flow field characteristics in the aquaculture pond system are studied for different inlet diameter ratios (parameter C / B, i.e., the ratio of the horizontal distance C from the center of the jet pipe to the aquaculture pond wall to the length B of the short side of the aquaculture pond) and different jet angles of the aquaculture pond. Figure 3-6 As shown, the results show that when the diameter ratio C / B=0.07-0.09 and the jet angle is 25°, the flow pattern inside the aquaculture pond is generally better than other working conditions.

[0057] Example 4

[0058] The utility model application embodiment provides a breeding pond. On the basis of embodiment 1, the diameter-to-depth ratio (ratio of diameter to pond depth) of the pond body 1 is 6: 1. The diameter-to-depth ratio is an important parameter affecting the hydrodynamic characteristics in the breeding pond, and is also closely related to the sewage collection and drainage effect of the breeding pond. A suitable diameter-to-depth ratio is the key to improving the sewage drainage efficiency in the breeding pond. The smaller the diameter-to-depth ratio, the higher the sewage drainage efficiency. When the diameter-to-depth ratio of the pond body 1 is 6: 1, the sewage drainage effect is excellent.

[0059] Example 5

[0060] The present utility model application embodiment provides a breeding pond. Based on the embodiment 1, the slope of the pond bottom 11 is 12°. Figure 7As shown, the slope of the pool bottom 11 has an important influence on its internal flow field characteristics, particle deposition and distribution. Studies have shown that as the internal pressure of the culture pond decreases, the force acting on the particles decreases and the deposition concentration increases; when the water flow rotation speed remains unchanged, as the slope of the bottom of the culture pond increases, the separation efficiency of the particles increases; when the bottom slope is 12°, the water purification efficiency of the culture pond is the highest.

[0061] Example 6

[0062] The utility model application embodiment provides a breeding pond, based on embodiment 1, such as Figure 8 As shown, a sewage collecting trough 111 is arranged at the middle position of the bottom of the pool 11, and the drainage pipe 2 is connected to the middle position of the sewage collecting trough 111. The sewage collecting trough 111 can facilitate the waste of farmed aquatic animals at the bottom of the water body to be collected into the sewage collecting trough 111 along with the water flow.

[0063] Optionally, a sewage collecting area 112 is provided above the pool body 1, and the sewage collecting area 112 is connected to the sewage collecting tank 111 through a pipe 113. The sewage collecting area 112 is used to collect waste scum of farmed aquatic animals on the surface of the pool body 1. The waste scum is sent to the sewage collecting tank 111 through the pipe 113, which is conducive to the removal of waste.

[0064] Parts not described in detail in this embodiment are well-known techniques in the art.

[0065] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A breeding pond, characterized in that: include: A pool body, comprising a pool bottom and a pool wall arranged on the pool bottom; The pool wall includes four straight walls and four arc walls; The straight walls are arranged symmetrically in pairs, and two adjacent straight walls are connected by an arc wall; The pool body is provided with a drainage structure and a water inlet structure; The drainage structure includes a drainage pipe arranged at the middle of the pool bottom; the pool bottom is arranged in a slope from the pool wall to the drainage pipe; the water inlet structure is a jet; The water inlet structure includes a double water inlet pipe, the double water inlet pipe includes a first water inlet pipe and a second water inlet pipe, the first water inlet pipe and the second water inlet pipe are respectively arranged on a group of oppositely arranged straight walls; The first water inlet pipe and the second water inlet pipe are symmetrically arranged in the middle position of a group of straight walls; the first flow area, the second flow area, the third flow area and the fourth flow area are formed on the inner sides of the four corners of the pool body; the jet direction of the first water inlet pipe is toward the first flow area, and the jet direction of the second water inlet pipe is toward the third flow area.

2. The culture pond according to claim 1, characterized in that: The jet angles of the first water inlet pipe and the second water inlet pipe are 0° to 10°.

3. The culture pond according to claim 2, characterized in that: The jet angles of the first water inlet pipe and the second water inlet pipe are 0°.

4. The culture pond according to claim 1, characterized in that: The first flow area, the second flow area, the third flow area and the fourth flow area are formed inside the four corners of the pool body; the water inlet structure includes a single water inlet pipe, and the single water inlet pipe is arranged in any flow area.

5. The culture pond according to claim 4, characterized in that: The jet angle of the water inlet single tube is 25°.

6. The culture pond according to claim 4, characterized in that: The ratio of the horizontal distance C from the center of the single water inlet pipe to the wall of the culture pond to the length B of the short side of the culture pond is equal to 0.07-0.09, and the jet angle of the single water inlet pipe is 25°.

7. The culture pond according to claim 1, characterized in that: The diameter-to-depth ratio of the pool body is 6:

1.

8. The culture pond according to claim 1, characterized in that: The slope of the pool bottom is 12°.

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