An air-source heat pump aquaculture constant temperature unit

Abstract

This utility model relates to the field of constant temperature equipment for aquaculture, and discloses an air-source heat pump aquaculture constant temperature unit, including a sleeve. Both ends of the sleeve are fixedly fitted with mounting covers by bolts. The upper, middle, and lower parts of the right-side mounting covers are respectively fixedly connected to an outlet pipe, an inlet pipe, and a drain pipe. The left part of the inlet pipe penetrates the inner wall of the mounting cover and extends to the left inner wall of the sleeve. The outer walls of both sets of mounting covers are fixedly connected to refrigerant connection pipes via connecting components. In this utility model, the spiral arrangement of the coils inside the sleeve, surrounding the inlet pipe, increases the contact area between the refrigerant and the aquaculture water. Simultaneously, the design of the two sets of coils with decreasing diameters from left to right adapts to the water flow within the sleeve, resulting in more thorough and uniform heat exchange, efficient water temperature regulation, stable aquaculture water temperature, and reduced operating costs and environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature equipment for aquaculture, and in particular to an air-source constant temperature unit for aquaculture. Background Technology

[0002] In aquaculture production, stable water temperature control is a key factor in ensuring the normal growth, reproduction, and survival rate of farmed organisms (such as fish, shrimp, and crabs), and directly affects the economic benefits and sustainability of aquaculture.

[0003] Traditional constant temperature equipment for aquaculture mostly relies on electric heating, oil or coal-fired boilers, etc. These methods not only have low energy conversion efficiency and high long-term operating costs, but also produce a lot of waste gas and slag due to fuel combustion, causing environmental pollution. This is contrary to the green and environmentally friendly concept advocated by the modern aquaculture industry. Therefore, an air source aquaculture constant temperature unit is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an air-source heat pump aquaculture constant temperature unit, which aims to improve the problems of "high operating costs and serious environmental pollution of traditional aquaculture constant temperature equipment" in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air-source heat pump aquaculture constant temperature unit, comprising a sleeve, wherein mounting covers are fixedly installed on both the left and right ends of the sleeve by bolts; an outlet pipe, an inlet pipe, and a drain pipe are respectively fixedly connected to the upper, middle, and lower parts of the right-side mounting covers; the left part of the inlet pipe penetrates the inner wall of the mounting cover and extends to the left inner wall of the sleeve; refrigerant connection pipes are fixedly connected to the outer walls of both sets of mounting covers by connecting components; a spirally arranged coil is provided around the inlet pipe on the inner wall of the sleeve; the coil is fixedly connected to the outer wall of the connecting components; and the coil, the connecting components, and the refrigerant connection pipes are internally interconnected.

[0006] As a further description of the above technical solution:

[0007] The connection assembly includes a connector, which is fixedly connected to the outside of the coil and inserted into the inner wall of the mounting cover. A connector is fixedly connected to the side of the connector near the refrigerant connection pipe. The connector penetrates the inner wall of the mounting cover. A fixing sleeve is fixedly connected to the periphery of the mounting cover near the connector. A threaded groove is formed on the inner wall of the fixing sleeve. A rotating component is threadedly connected to the inner wall of the threaded groove of the fixing sleeve. The outside of the refrigerant connection pipe is slidably connected to the inner side of the rotating component. The connector is inserted into the inner wall of the refrigerant connection pipe. A sealing element is provided on the inner wall of the fixing sleeve. The sealing element contacts the outside of the refrigerant connection pipe.

[0008] As a further description of the above technical solution:

[0009] The rotating component is configured with a regular hexagonal shape on the side away from the connecting component, and a thread is provided on the side of the rotating component close to the connecting component. The thread of the rotating component is threaded into the threaded groove on the inner wall of the fixed sleeve.

[0010] As a further description of the above technical solution:

[0011] The diameter of the refrigerant connection pipe on the side closest to the connector is larger than the diameter sliding inside the rotating component.

[0012] As a further description of the above technical solution:

[0013] The coil is provided in two sets, and the diameter of the two sets of coils decreases from left to right.

[0014] As a further description of the above technical solution:

[0015] The bottom of the sleeve is fixedly connected to a base, and the outer sides of the water outlet pipe, water inlet pipe and water outlet pipe are fixedly connected to a fixing plate.

[0016] As a further description of the above technical solution:

[0017] The upper part of the water outlet pipe is equipped with a water outlet temperature sensing sleeve and a water flow switch from left to right.

[0018] As a further description of the above technical solution:

[0019] A water inlet temperature sensing sleeve is fixedly connected to the upper part of the water inlet pipe.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the coil inside the sleeve is spirally arranged and surrounds the water inlet pipe, which increases the contact area between the refrigerant and the aquaculture water. At the same time, the design of the two sets of coils with diameters decreasing from left to right can adapt to the flow state of water in the sleeve, making heat exchange more complete and uniform, efficiently achieving water temperature regulation, ensuring stable aquaculture water temperature, and reducing operating costs and environmental pollution.

[0022] 2. In this utility model, the connecting component is connected to the refrigerant connecting pipe through the insertion pipe, and then the rotating part is threadedly connected to the fixed sleeve to achieve fastening. At the same time, the sealing part on the inner wall of the fixed sleeve is in close contact with the outer side of the refrigerant connecting pipe. The rotating part adopts a regular hexagonal design, which is convenient for tool operation to ensure the connection is tight and reduce sealing problems during maintenance. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2This is a three-dimensional cross-sectional view of the sleeve in this utility model;

[0025] Figure 3 This is a three-dimensional structural disassembly diagram of the connecting component in this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged 3D structural diagram at point A;

[0027] Figure 5 This is a three-dimensional structural diagram of the overall device in the installation state of this utility model.

[0028] Legend:

[0029] 1. Sleeve; 2. Mounting cover; 3. Outlet pipe; 4. Inlet pipe; 5. Drain pipe; 6. Fixing plate; 7. Refrigerant connection pipe; 8. Connection assembly; 81. Connector; 82. Insert pipe; 83. Fixing sleeve; 84. Rotating component; 85. Sealing component; 9. Coil; 10. Base. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of an air-source heat pump aquaculture constant temperature unit, including a sleeve 1. Mounting covers 2 are bolted to both ends of the sleeve 1. The sleeve 1 and mounting covers 2 provide a closed space for the internal heat exchange process. A set of mounting covers 2 on the right side is fixedly connected to an outlet pipe 3, an inlet pipe 4, and a drain pipe 5 at the upper, middle, and lower parts, respectively. The outlet pipe 3 is used to transport the constant temperature water after heat exchange back to the aquaculture system, realizing water recycling. The drain pipe 5 is mainly used to drain residual water from the sleeve 1 during equipment maintenance or cleaning. The left part of the inlet pipe 4 penetrates the inner wall of the mounting cover 2 and extends to the left inner wall of the sleeve 1. The inlet pipe 4 is responsible for introducing the aquaculture water to be heated into the sleeve 1. The left part of the inlet pipe 4 extends to the left inner wall of the sleeve 1, allowing water to flow within the sleeve 1. After traveling a longer path and making full contact with coil 9, the refrigerant flows out, ensuring sufficient heat exchange. The outer walls of both sets of mounting covers 2 are fixedly connected to refrigerant connecting pipes 7 via connecting components 8. These connecting components 8 are connected to coil 9 and are responsible for delivering refrigerant from the external system to coil 9, or sending the refrigerant in coil 9 back to the external circulation system, such as the compressor or expansion valve, forming a closed loop of refrigerant. The inner wall of sleeve 1 is surrounded by a spirally arranged coil 9 around the water inlet pipe 4. Refrigerant, including high-temperature and high-pressure gaseous refrigerant or low-temperature and low-pressure liquid refrigerant, flows inside. It is the core component for achieving heat exchange. Its spiral structure increases the contact area with water, reducing operating costs and environmental pollution. Coil 9 is fixedly connected to the outer wall of connecting component 8, and coil 9, connecting component 8, and refrigerant connecting pipe 7 are interconnected.

[0032] Reference Figure 2 - Figure 4 The connecting assembly 8 includes a connector 81, which is fixedly connected to the outside of the coil 9 and inserted into the inner wall of the mounting cover 2. It connects the coil 9 to the connector 82, ensuring that refrigerant can flow smoothly from the coil 9 into the connector 82. The connector 82 is fixedly connected to the side of the connector 81 near the refrigerant connecting pipe 7. The connector 82 penetrates the inner wall of the mounting cover 2, allowing refrigerant to flow between the coil 9 and the refrigerant connecting pipe 7. A fixing sleeve 83 is fixedly connected to the outer periphery of the mounting cover 2 near the connector 82. The inner wall of the fixing sleeve 83 has a threaded groove that mates with the rotating component 84. The fixing sleeve 83 provides a basic structure for fixing the refrigerant connection pipe 7. The inner wall of the threaded groove of the fixing sleeve 83 is threaded with a rotating part 84. When rotated, the refrigerant connection pipe 7 can be pressed tightly onto the insertion pipe 82 to enhance the connection tightness. The outer side of the refrigerant connection pipe 7 is slidably connected to the inner side of the rotating part 84. The insertion pipe 82 is inserted into the inner wall of the refrigerant connection pipe 7. The inner wall of the fixing sleeve 83 is provided with a sealing part 85, which is made of nitrile rubber. The sealing part 85 contacts the outer side of the refrigerant connection pipe 7, making close contact with the outer side of the refrigerant connection pipe 7 to form a sealing barrier to prevent refrigerant leakage at the connection and ensure refrigerant circulation efficiency.

[0033] Reference Figure 2- Figure 4 The rotating part 84, away from the connecting part 81, is shaped like a regular hexagon. This hexagonal structure is compatible with tools such as wrenches, facilitating installation or maintenance by rotating the rotating part 84 to tighten or loosen its threads with the fixed sleeve 83, thus improving ease of operation. The rotating part 84, near the connecting part 81, has threads that engage with the threaded groove on the inner wall of the fixed sleeve 83. Through this threaded connection, the rotating part 84 can move axially along the threaded groove of the fixed sleeve 83. During tightening, it presses the refrigerant connecting pipe 7 towards the connecting part 81, making the insertion of the insertion pipe 82 and the refrigerant connecting pipe 7 more tightly. Simultaneously, it compresses the sealing element 85, enhancing the seal at the connection and preventing refrigerant leakage. The diameter of the refrigerant connecting pipe 7 near the connecting part 81 is larger than the diameter sliding inside the rotating part 84; this variable diameter design creates a stepped structure. When the rotating part 84 is tightened, its inner side will contact the stepped surface of the refrigerant connection pipe 7. The axial thrust of the rotating part 84 will firmly press the refrigerant connection pipe 7 against the insertion pipe 82, ensuring that the two are inserted in place and fit tightly.

[0034] There are two sets of coils 9, with the diameter of the two sets of coils 9 decreasing from left to right, which is adapted to the flow state of water in the sleeve 1, making the heat exchange more uniform and efficient.

[0035] Reference Figure 1 - Figure 3 The bottom of sleeve 1 is fixedly connected to base 10, which is installed on the inner wall of the unit to provide stable support, as shown in the instruction manual. Figure 5 A fixing plate 6 is fixedly connected to the outside of the outlet pipe 3, inlet pipe 4, and drain pipe 5 to reinforce the water pipes and prevent them from loosening or shifting due to water flow impact or external collisions, ensuring the stability of the water system. From left to right, the upper part of the outlet pipe 3 is equipped with an outlet temperature sensing sleeve and a flow switch. A temperature sensor can be installed inside the outlet temperature sensing sleeve to monitor the temperature of the water after heat exchange in real time, feeding the data back to the control system for timely adjustment of the refrigerant circulation and precise control of the outlet water temperature. The flow switch monitors the flow rate and pressure of the water in the water circuit. When the water flow is too low, interrupted, or the pressure is abnormal, a protection mechanism such as a shutdown alarm can be triggered to prevent the equipment from operating without water or with insufficient water flow, avoiding malfunctions such as dry burning. A water inlet temperature sensing sleeve is fixedly connected to the upper part of the inlet pipe 4. A temperature sensor can be installed inside to detect the initial temperature of the water entering the sleeve 1, providing basic data for temperature control and ensuring that the water temperature after heat exchange reaches the set standard. The sleeve 1, mounting cover 2, outlet pipe 3, inlet pipe 4, drain pipe 5, and coil 9 are all made of titanium. It has excellent corrosion resistance and can operate stably for a long time in various acidic and alkaline environments, as well as highly corrosive aquaculture waters such as seawater, greatly extending the service life of the heat exchanger.

[0036] Working principle: During use, the aquaculture water enters the sleeve 1 through the inlet pipe 4. Because the left side of the inlet pipe 4 extends to the inner wall of the left side of the sleeve 1, the water can flow along a longer path inside the sleeve 1. Two sets of spiral coils 9 on the inner wall of the sleeve 1 surround the inlet pipe 4, and the diameter of the coils 9 decreases from left to right, adapting to the flow state of the water inside the sleeve 1 and increasing the contact area with the water.

[0037] Meanwhile, the refrigerant enters the coil 9 through the refrigerant connection pipe 7 and the connection assembly 8. The refrigerant connection pipe 7 is inserted into the connection pipe 82 of the connection assembly 8. The threaded connection between the rotating part 84 and the fixed sleeve 83 presses the refrigerant connection pipe 7 tightly. The sealing part 85 ensures the refrigerant flows in a sealed manner. The high-temperature and high-pressure gaseous refrigerant condenses and releases heat in the coil 9, transferring the heat to the water. It then becomes liquid refrigerant and flows back to the external circulation system through another set of refrigerant connection pipes 7 (such as entering the evaporator to absorb heat after being throttled by the expansion valve, and then being compressed by the compressor), completing the refrigerant cycle and reducing the cost of use and environmental pollution.

[0038] During this process, the inlet temperature sensing sleeve of the inlet pipe 4 and the outlet temperature sensing sleeve of the outlet pipe 3 monitor the inlet and outlet water temperatures respectively, and the data is fed back to the control system to adjust the refrigerant circulation status; the water flow switch of the outlet pipe 3 monitors the water flow status in real time to ensure smooth water flow. The constant-temperature water after heat exchange flows back to the aquaculture system through the outlet pipe 3, while the drain pipe 5 can discharge the residual water in the sleeve 1 during maintenance, thus achieving continuous constant temperature control of the aquaculture water.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air-source heat pump aquaculture constant temperature unit, comprising a sleeve (1), characterized in that: The sleeve (1) is fixedly installed with mounting covers (2) by bolts at both ends. The upper, middle and lower parts of the right set of mounting covers (2) are respectively fixedly connected to the water outlet pipe (3), the water inlet pipe (4) and the drain pipe (5). The left part of the water inlet pipe (4) penetrates the inner wall of the mounting cover (2) and extends to the left inner wall of the sleeve (1). The outer walls of both sets of mounting covers (2) are fixedly connected with refrigerant connecting pipes (7) by connecting components (8). The inner wall of the sleeve (1) is surrounded by a spirally arranged coil (9) around the water inlet pipe (4). The coil (9) is fixedly connected to the outer wall of the connecting components (8). The coil (9), the connecting components (8) and the refrigerant connecting pipe (7) are internally interconnected.

2. The air-source heat pump aquaculture constant temperature unit according to claim 1, characterized in that: The connecting assembly (8) includes a connector (81), which is fixedly connected to the outside of the coil (9) and inserted into the inner wall of the mounting cover (2). A plug pipe (82) is fixedly connected to the side of the connector (81) near the refrigerant connecting pipe (7). The plug pipe (82) penetrates the inner wall of the mounting cover (2). A fixing sleeve (83) is fixedly connected to the periphery of the mounting cover (2) near the plug pipe (82). A threaded groove is provided on the inner wall of the fixing sleeve (83). A rotating part (84) is threadedly connected to the inner wall of the threaded groove of the fixing sleeve (83). The outside of the refrigerant connecting pipe (7) is slidably connected to the inner side of the rotating part (84). The plug pipe (82) is inserted into the inner wall of the refrigerant connecting pipe (7). A sealing element (85) is provided on the inner wall of the fixing sleeve (83). The sealing element (85) contacts the outside of the refrigerant connecting pipe (7).

3. The air-source heat pump aquaculture constant temperature unit according to claim 2, characterized in that: The rotating part (84) is set in a regular hexagonal shape on the side away from the connecting part (81), and the rotating part (84) is threaded on the side close to the connecting part (81). The thread of the rotating part (84) is threaded to the threaded groove of the inner wall of the fixed sleeve (83).

4. The air-source heat pump aquaculture constant temperature unit according to claim 2, characterized in that: The diameter of the refrigerant connection pipe (7) on the side near the connector (81) is larger than the diameter sliding inside the rotating part (84).

5. The air-source heat pump aquaculture constant temperature unit according to claim 1, characterized in that: The coil (9) is provided in two sets, and the diameter of the two sets of coils (9) decreases from left to right.

6. The air-source heat pump aquaculture constant temperature unit according to claim 1, characterized in that: The bottom of the sleeve (1) is fixedly connected to a base (10), and the outside of the water outlet pipe (3), water inlet pipe (4) and water outlet pipe (5) are fixedly connected to a fixing plate (6).

7. The air-source heat pump aquaculture constant temperature unit according to claim 1, characterized in that: The upper part of the water outlet pipe (3) is provided with a water outlet temperature sensing sleeve and a water flow switch from left to right.

8. The air-source heat pump aquaculture constant temperature unit according to claim 1, characterized in that: The upper part of the water inlet pipe (4) is fixedly connected to a water inlet temperature sensing sleeve.

Images