Water exchange device for cold water fish farming

Abstract

The utility model discloses a water exchange device for cold water fish culture, including drain pipe, the top end of drain pipe can be mutually connected with the bottom of external culture box, the one end of drain pipe is close to the inside of external culture box and is penetrated, the one side of drain pipe bottom is provided with inlet pipe, the one end of inlet pipe is close to the inside of drain pipe and extends to the inside of external culture box along the trend of drain pipe, and the liquid of external culture box overflow to the inside of drain pipe can heat exchange with inlet pipe when contacting with inlet pipe, inlet pipe and drain pipe all are provided with spiral, the spiral line of inlet pipe and drain pipe is same, the bottom of drain pipe is provided with the pump body. The utility model discloses through physical contact heat exchange, need not traditional heating / refrigeration device, significantly reduce energy consumption, utilize the natural temperature difference of overflow water and water, realize heat energy spontaneous transmission, maintain water temperature stable.

Description

Technical Field

[0001] This utility model relates to the field of cold-water fish farming technology, specifically to a water exchange device for cold-water fish farming. Background Technology

[0002] In cold-water fish farming, water exchange is one of the most crucial management measures for maintaining good water quality and ensuring the healthy growth of fish. Its core purpose is to remove metabolic waste from fish, replenish dissolved oxygen, and dilute potential pathogens and harmful substances.

[0003] For example, patent application number 202323655200.4 published on the China Patent Network, entitled "A Water Exchange Device for Cold-Water Fish Farming," includes a water storage tank and a breeding tank. A water pump extending into the breeding tank is fixedly installed on the right side of the water storage tank, and a solenoid valve outlet pipe fixedly connected to the breeding tank is also fixedly installed on the right side of the water storage tank. This water exchange device for cold-water fish farming, by incorporating a chiller, first introduces external water into the water storage tank through the solenoid valve inlet pipe. Then, a first temperature sensor transmits the water temperature to the controller in real time. When the water temperature inside the water storage tank exceeds a set value, the controller controls the chiller to operate, lowering the water temperature inside the tank. Simultaneously, the controller controls the drive motor to operate, causing its output shaft to drive the stirring shaft to rotate. The stirring blades at the bottom of the rotating stirring shaft agitate the water inside the water storage tank. The two sets of asymmetrical stirring blades effectively agitate the water at different locations within the water storage tank, ensuring thorough mixing of water at different temperatures.

[0004] However, existing water exchange devices mainly rely on internal electrical components to heat or cool the water to maintain the same temperature. The operation of these electrical components requires a large amount of energy, which increases the cost of cold-water fish farming.

[0005] Therefore, it is necessary to redesign and modify the water exchange device for cold-water fish farming. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a water exchange device for cold-water fish farming, which has the advantage of saving energy consumption. It solves the problem that existing water exchange devices mainly rely on internal electrical components to heat or cool the water to make the water temperature the same, and the electrical components consume a lot of energy during operation, which leads to increased costs for cold-water fish farming.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water exchange device for cold-water fish farming, including a drain pipe;

[0008] The top of the drain pipe can be connected to the bottom of the external breeding box. The end of the drain pipe near the external breeding box extends into the interior of the external breeding box. A water inlet pipe is provided on one side of the bottom of the drain pipe. The end of the water inlet pipe near the drain pipe extends into the interior of the drain pipe and extends along the direction of the drain pipe into the interior of the external breeding box. The liquid overflowing from the external breeding box into the drain pipe can exchange heat with the water inlet pipe when it comes into contact with the water inlet pipe.

[0009] As a preferred embodiment of this invention, both the inlet pipe and the outlet pipe are spiral-shaped, and the spiral lines of the inlet pipe and the outlet pipe are the same.

[0010] As a preferred embodiment of this utility model, a pump body is provided at the bottom of the drain pipe, the output end of the pump body is connected to the inlet pipe, the input end of the pump body is connected to the pumping pipe, a bracket is fixedly connected to the surface of the pump body, a drive motor is fixedly connected to one side of the bracket, and the output end of the drive motor is connected to the drive end of the pump body.

[0011] As a preferred embodiment of this utility model, the bottom of the drain pipe is provided with a transmission rod located at the top of the pump body, the top end of the transmission rod passes through the drain pipe and the inlet pipe in sequence and extends to the top of the inlet pipe, and the top end of the transmission rod is fixedly connected to the impeller at the top of the discharge end of the inlet pipe.

[0012] In a preferred embodiment of this invention, both the output end of the drive motor and the bottom end of the drive rod are fixedly connected to helical gears, which mesh with each other.

[0013] In a preferred embodiment of this invention, the portion of the transmission rod that passes through the drain pipe and the inlet pipe is interconnected by a movable oil seal.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses physical contact heat exchange, eliminating the need for traditional heating / cooling devices, significantly reducing energy consumption. It utilizes the natural temperature difference between overflow water and inlet water to achieve spontaneous heat transfer and maintain stable water temperature.

[0016] 2. This utility model has a spiral shape for both the inlet and outlet pipes, and the spiral lines are consistent, which can greatly extend the water flow contact path and time, and enhance the heat exchange effect.

[0017] 3. This utility model connects the pump body to the bottom of the drain pipe and is driven by a transmission motor, which can drive the input of new water. The overflow water flows by gravity, and the power consumption is reduced compared with the bidirectional water pump system.

[0018] 4. This utility model eliminates localized hot / cold spots by instantly agitating the new water as it enters the tank using an impeller, thus preventing temperature stress in fish.

[0019] 5. This utility model connects the output end of the transmission motor to the bottom end of the transmission rod through a meshing helical gear, which can make full use of the power and save the operation steps of driving the transmission rod to rotate.

[0020] 6. This utility model uses a movable oil seal connection at the point where the transmission rod passes through the pipe, which can greatly improve the sealing effect and at the same time avoid affecting the rotation of the transmission rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the present invention.

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Drain pipe; 2. Inlet pipe; 3. Pump body; 4. Pumping pipe; 5. Support; 6. Drive motor; 7. Drive rod; 8. Impeller; 9. Helical gear. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 4 As shown, the present invention provides a water exchange device for cold-water fish farming, including a drain pipe 1;

[0028] The top of the drain pipe 1 can be connected to the bottom of the external breeding box. The end of the drain pipe 1 near the external breeding box extends into the interior of the external breeding box. A water inlet pipe 2 is provided on one side of the bottom of the drain pipe 1. The end of the water inlet pipe 2 near the drain pipe 1 extends into the interior of the drain pipe 1 and extends along the direction of the drain pipe 1 into the interior of the external breeding box. The liquid overflowing from the external breeding box into the drain pipe 1 can exchange heat with the water inlet pipe 2 when it comes into contact with the water inlet pipe 2.

[0029] refer to Figure 2 Both the inlet pipe 2 and the drain pipe 1 are spiral-shaped, and the spiral lines of the inlet pipe 2 and the drain pipe 1 are the same.

[0030] As a technical optimization of this utility model, since both the inlet pipe 2 and the outlet pipe 1 are spiral-shaped and the spiral lines are consistent, the water flow contact path and time can be greatly extended, thereby enhancing the heat exchange effect.

[0031] refer to Figure 4 A pump body 3 is installed at the bottom of the drain pipe 1. The output end of the pump body 3 is connected to the inlet pipe 2. The input end of the pump body 3 is connected to the pumping pipe 4. A bracket 5 is fixedly connected to the surface of the pump body 3. A drive motor 6 is fixedly connected to one side of the bracket 5. The output end of the drive motor 6 is connected to the drive end of the pump body 3.

[0032] As a technical optimization of this utility model, the pump body 3 is connected to the bottom of the drain pipe 1 and driven by the transmission motor 6, which can drive the input of new water. The overflow water relies on gravity to flow by itself, and the power consumption is reduced compared with the bidirectional water pump system.

[0033] refer to Figure 4 The bottom of the drain pipe 1 is provided with a transmission rod 7 located at the top of the pump body 3. The top of the transmission rod 7 passes through the drain pipe 1 and the inlet pipe 2 in sequence and extends to the top of the inlet pipe 2. The top of the transmission rod 7 is fixedly connected to the impeller 8 at the top of the discharge end of the inlet pipe 2.

[0034] As a technical optimization of this utility model, the impeller 8 eliminates local cold / hot spots and avoids temperature stress on fish by stirring the new water into the tank at the moment of entry.

[0035] refer to Figure 4 Both the output end of the drive motor 6 and the bottom end of the drive rod 7 are fixedly connected to helical gears 9, which mesh with each other.

[0036] As a technical optimization of this utility model, the output end of the transmission motor 6 is connected to the bottom end of the transmission rod 7 through a meshing helical gear 9, which can make full use of the power and save the operation steps of driving the transmission rod 7 to rotate.

[0037] refer to Figure 3 The portion of the transmission rod 7 that passes through the drain pipe 1 and the inlet pipe 2 is connected to each other by a movable oil seal.

[0038] As a technical optimization of this utility model, the use of a movable oil seal connection at the point where the transmission rod 7 passes through the pipe can significantly improve the sealing effect while preventing the rotation of the transmission rod 7 from being affected.

[0039] The working principle and usage process of this utility model are as follows: During use, the drive motor 6 starts, driving the transmission end of the pump body 3 through its output end. The pump body 3 operates, drawing fresh water from the external water pipe 4 and pumping it into the inlet pipe 2. Simultaneously, the helical gear 9 of the drive motor 6 meshes with the helical gear 9 at the bottom of the transmission rod 7, causing the transmission rod 7 to rotate. The fresh water is pumped into the inlet pipe 2, which spirals upwards from the bottom of the drain pipe 1. Because the spiral lines of the inlet pipe 2 and the drain pipe 1 are the same, the fresh water rises and swirls within the inlet pipe 2, eventually entering the external aquaculture tank through the discharge end of the inlet pipe 2. Meanwhile, the water in the external aquaculture tank overflows from the top into the top of the drain pipe 1, where the overflow water flows downwards. The drain pipe 1 is also spiral-shaped and parallel to the inlet pipe 2, but flows independently. The two water flows are in opposite directions and form a countercurrent in the spiral pipe. When the overflow water flows, it directly contacts the outer wall of the penetrating inlet pipe 2. Since the inlet pipe 2 extends into the interior of the drain pipe 1 and both pipes are spiral-shaped with the same spiral line, heat exchange can be carried out through heat exchange. When heat exchange occurs, heat is transferred from the overflow water to the new water through the pipe wall of the inlet pipe 2, so that the overflow water is cooled and the new water is heated, and the water temperature tends to be uniform. When the transmission rod 7 rotates, it can drive the impeller 8 to rotate synchronously. The rotation of the impeller 8 stirs the water flow when the new water enters the breeding tank, promotes uniform distribution and increases dissolved oxygen, and further improves the dispersion range of the new water.

[0040] In summary, this cold-water fish farming water exchange device achieves spontaneous heat transfer through physical contact heat exchange, eliminating the need for traditional heating / cooling devices, thus significantly reducing energy consumption. It also utilizes the natural temperature difference between overflow water and inlet water to maintain stable water temperature.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water exchange device for cold-water fish farming, comprising a drain pipe (1); Its features are: The top of the drain pipe (1) can be connected to the bottom of the external breeding box. The end of the drain pipe (1) near the external breeding box extends into the interior of the external breeding box. A water inlet pipe (2) is provided on one side of the bottom of the drain pipe (1). The end of the water inlet pipe (2) near the drain pipe (1) extends into the interior of the drain pipe (1) and extends along the direction of the drain pipe (1) into the interior of the external breeding box. The liquid overflowing from the external breeding box into the drain pipe (1) can exchange heat with the water inlet pipe (2) when it comes into contact with the water inlet pipe (2).

2. The water exchange device for cold-water fish farming according to claim 1, characterized in that: Both the inlet pipe (2) and the outlet pipe (1) are spiral-shaped, and the spiral lines of the inlet pipe (2) and the outlet pipe (1) are the same.

3. The water exchange device for cold-water fish farming according to claim 1, characterized in that: A pump body (3) is provided at the bottom of the drain pipe (1). The output end of the pump body (3) is connected to the inlet pipe (2). The input end of the pump body (3) is connected to the pumping pipe (4). A bracket (5) is fixedly connected to the surface of the pump body (3). A drive motor (6) is fixedly connected to one side of the bracket (5). The output end of the drive motor (6) is connected to the drive end of the pump body (3).

4. The water exchange device for cold-water fish farming according to claim 3, characterized in that: The bottom of the drain pipe (1) is provided with a transmission rod (7) located at the top of the pump body (3). The top end of the transmission rod (7) passes through the drain pipe (1) and the inlet pipe (2) in sequence and extends to the top of the inlet pipe (2). The top end of the transmission rod (7) is fixedly connected to the impeller (8) at the top of the discharge end of the inlet pipe (2).

5. A water exchange device for cold-water fish farming according to claim 4, characterized in that: The output end of the drive motor (6) and the bottom end of the drive rod (7) are both fixedly connected to helical gears (9), which mesh with each other.

6. A water exchange device for cold-water fish farming according to claim 4, characterized in that: The portion of the transmission rod (7) that passes through the drain pipe (1) and the inlet pipe (2) is connected to each other by a movable oil seal.

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