Device for heat exchange of microalgae culture water body

Abstract

The device comprises a culture pond and a heat exchange chamber arranged on one side of the culture pond, a water pump is arranged between the heat exchange chamber and the culture pond, a water inlet of the water pump is connected with the culture pond through a pipeline, and a water storage port of the water pump is connected with the heat exchange chamber through a water conveying pipe. A backflow pipe extending to the position above the culture pond is fixedly connected to the side, opposite to the water conveying pipe, in the heat exchange chamber, a plurality of heat exchange pipes are evenly and fixedly connected to the interior of the bottom side of the heat exchange chamber, and a cleaning assembly used for cleaning the surfaces of the heat exchange pipes is arranged in the heat exchange chamber. The cleaning assembly comprises a floating plate arranged at the bottom of the heat exchange chamber, a cleaning plate arranged at the top of the floating plate and a water inlet pipe fixedly connected to the bottom of the heat exchange chamber. Through the structure, the bristles capable of moving up and down are arranged on the surfaces of the heat exchange pipes, so that the cleanliness of the surfaces of the heat exchange pipes is guaranteed, the heat exchange efficiency of the heat exchange pipes is improved, and normal operation of the microalgae culture water body heat exchange system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of microalgae culture, and particularly relates to a device for heat exchange of microalgae culture water body. Background Art

[0002] Microalgae are tiny aquatic plants. They have efficient photosynthesis ability, can grow and reproduce rapidly, and fix a large amount of carbon dioxide at the same time. Microalgae culture is an agricultural technology that uses microalgae for biological carbon fixation and biological resource production.

[0003] In the prior art, through retrieval, it is found that a Chinese patent discloses "a device for heat exchange of microalgae culture water body", and its application number is "202220021659.5". In the above patent, a carbon dioxide delivery pipe is installed in the exchange tank, a centrifugal water pump is installed at the bottom of the exchange tank, a return pipe is installed at the upper part of the exchange tank, a heat exchange pipe and an overflow pipe are installed in the constant temperature water tank, both ends of the heat exchange pipe are respectively communicated with the photoreaction pipe by connecting flanges, a left partition plate, a middle partition plate and a right partition plate are respectively installed on the heat exchange pipe, an end cover is installed at the top of the constant temperature water tank, a waste discharge pipe and a constant temperature water pipe are respectively installed at the bottom, a solenoid valve is installed on the constant temperature water pipe, and the input port of the circulating water pump is communicated with the water input pipe. Although the above device connects a heat exchanger in series on the photoreaction pipe, uses a constant temperature water body as the exchange medium, and conducts heat exchange between the circulating constant temperature water and the water body in the photoreaction pipe to effectively control the temperature of the culture solution. However, after the microalgae and the culture solution in the exchange tank are transported to the heat exchange pipe to conduct heat exchange with the constant temperature water in the constant temperature water tank, microalgae cells, metabolites, organic and inorganic substances, etc. in the culture solution will gradually accumulate on the inner surface of the heat exchange pipe during the microalgae culture process, forming a dirt layer that is difficult to remove. This not only affects the heat exchange efficiency, causes heat transfer obstruction, increases energy consumption, but also may cause corrosion and blockage of the heat exchange pipe, further affecting the normal operation of the microalgae culture system. Therefore, the utility model provides a device for heat exchange of microalgae culture water body to solve the problems raised in the above background art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for heat exchange of microalgae culture water body. By arranging bristles that can move up and down on the surface of the heat exchange pipe, it is beneficial to ensure the cleanliness of the surface of the heat exchange pipe, so as to help improve the heat exchange efficiency of the heat exchange pipe and ensure the normal operation of the microalgae culture water body heat exchange system.

[0005] To achieve the above object, a device for heat exchange of microalgae culture water body is provided, which includes a culture pond and a heat exchange chamber arranged on one side of the culture pond. A water pump is arranged between the heat exchange chamber and the culture pond. The water inlet of the water pump is connected to the culture pond through a pipeline, and the water storage port of the water pump is connected to the heat exchange chamber through a water delivery pipe. On the side of the heat exchange chamber opposite to the water delivery pipe, a return pipe extending above the culture pond is fixedly connected. Inside the bottom side of the heat exchange chamber, a plurality of heat exchange pipes are uniformly and fixedly connected. Inside the heat exchange chamber, a cleaning assembly for cleaning the surface of the heat exchange pipes is provided;

[0006] The cleaning assembly includes a floating plate arranged at the bottom of the heat exchange chamber, a cleaning plate arranged on the top of the floating plate, a water inlet pipe fixedly connected to the bottom of the heat exchange chamber, and a drain pipe fixedly connected to the bottom of the heat exchange chamber and arranged opposite to the water inlet pipe. A plurality of through holes are opened inside both the floating plate and the cleaning plate. A plurality of the heat exchange pipes are all inserted into the corresponding through holes, and brush hairs are arranged on the inner surfaces of the through holes of the cleaning plate. Valves are arranged on the outer sides of both the water inlet pipe and the drain pipe.

[0007] According to the device for heat exchange of microalgae culture water body, connection discs are fixedly connected to the top and bottom of a plurality of the heat exchange pipes. On the separated sides of the two connection discs, a heat exchange fluid inlet pipe and a heat exchange fluid outlet pipe are respectively connected. The heat exchange fluid outlet pipe is located at the bottom of the heat exchange chamber.

[0008] According to the device for heat exchange of microalgae culture water body, a temperature sensor is arranged inside the culture pond.

[0009] According to the device for heat exchange of microalgae culture water body, the diameter of the through hole is larger than the diameter of the heat exchange pipe.

[0010] According to the device for heat exchange of microalgae culture water body, the cleaning plate is slidably connected to the inner wall of the heat exchange chamber.

[0011] According to the device for heat exchange of microalgae culture water body, the cleaning plate is located below the water delivery pipe, and the buoyancy of the floating plate is greater than the gravity of the cleaning plate.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the prior art, for a device for heat exchange in microalgae culture water body, clear water is introduced into the interior of the heat exchange chamber through the water inlet pipe. The continuous introduction of clear water drives the floating plate to move upward. The bristles inside the cleaning plate can be driven by the upward moving floating plate to clean the surface of the heat exchange pipe. When the drain pipe discharges the cleaned sewage to the outside of the heat exchange chamber, the floating plate and the cleaning plate move downward as the water level drops, and the surface of the heat exchange pipe can be cleaned again by the bristles. By circulating in this way, the cleaning work of the surface of the heat exchange pipe can be completed. The cleaning work is simple and efficient. Furthermore, by cleaning the surface of the heat exchange pipe, it is beneficial to ensure the cleanliness of the surface of the heat exchange pipe, which helps to improve the heat exchange efficiency of the heat exchange pipe and ensure the normal operation of the microalgae culture water body heat exchange system.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 is a schematic diagram of the first overall structure of a device for heat exchange in microalgae culture water body of the present utility model;

[0017] Figure 2 is a schematic diagram of the second overall structure of a device for heat exchange in microalgae culture water body of the present utility model;

[0018] Figure 3 is a schematic diagram of the internal sectional structure of the heat exchange chamber of a device for heat exchange in microalgae culture water body of the present utility model;

[0019] Figure 4 is a schematic diagram of the connection structure of the connection disk, heat exchange pipe, floating plate and cleaning plate of a device for heat exchange in microalgae culture water body of the present utility model;

[0020] Figure 5 is a schematic diagram of the structure of the cleaning plate and the floating plate of a device for heat exchange in microalgae culture water body of the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Culturing pond; 2. Heat exchange chamber; 3. Water pump; 4. Connection disk; 5. Heat exchange fluid inlet pipe; 6. Heat exchange pipe; 7. Floating plate; 8. Cleaning plate; 9. Water delivery pipe; 10. Water inlet pipe; 11. Drain pipe; 12. Return pipe; 13. Temperature sensor; 14. Valve; 15. Through hole; 16. Bristle; 17. Heat exchange fluid outlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The role of the accompanying drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0024] Referring to Figures 1-5 , an apparatus for heat exchange of microalgae culture water body according to an embodiment of the present utility model includes a culture pond 1 and a heat exchange chamber 2 provided on one side of the culture pond 1. A water pump 3 is provided between the heat exchange chamber 2 and the culture pond 1. The water inlet of the water pump 3 is connected to the culture pond 1 through a pipeline, and the water storage outlet of the water pump 3 is connected to the heat exchange chamber 2 through a water delivery pipe 9. On the side of the heat exchange chamber 2 opposite to the water delivery pipe 9, a return pipe 12 extending above the culture pond 1 is fixedly connected. Inside the bottom side of the heat exchange chamber 2, a plurality of heat exchange tubes 6 are uniformly fixedly connected. A temperature sensor 13 is provided inside the culture pond 1, and the temperature sensor 13 can detect the water temperature inside the culture pond 1 in real time to ensure the stable temperature of the microalgae culture water body. The water body to be exchanged in the culture pond 1 is transported to the inside of the heat exchange chamber 2 through the water pump 3 and the water delivery pipe 9, and flows out from the return pipe 12 and then flows back into the culture pond 1. During this period, the heat exchange fluid flows inside the heat exchange tubes 6, and the heat exchange tubes 6 in contact with the water body ensure sufficient contact with the water body to achieve rapid and uniform heat exchange;

[0025] A cleaning assembly for cleaning the surface of the heat exchange tubes 6 is provided inside the heat exchange chamber 2. The cleaning assembly includes a floating plate 7 provided at the bottom of the heat exchange chamber 2, a cleaning plate 8 provided on the top of the floating plate 7, a water inlet pipe 10 fixedly connected to the bottom of the heat exchange chamber 2, and a drain pipe 11 fixedly connected to the bottom of the heat exchange chamber 2 and arranged opposite to the water inlet pipe 10. A plurality of through holes 15 are opened inside both the floating plate 7 and the cleaning plate 8. A plurality of heat exchange tubes 6 are all inserted into the corresponding through holes 15, and bristles 16 are provided on the inner surfaces of the through holes 15 of the cleaning plate 8. Valves 14 are provided on the outer sides of the water inlet pipe 10 and the drain pipe 11. When it is necessary to clean the heat exchange tubes 6, clean water is introduced into the heat exchange chamber 2 through the water inlet pipe 10. The continuous introduction of clean water drives the floating plate 7 to move upward. The upward movement of the floating plate 7 can drive the bristles 16 inside the cleaning plate 8 to move on the surface of the heat exchange tubes 6, so that the moving bristles 16 can clean the surface of the heat exchange tubes 6. When the cleaning plate 8 moves to the top, the water inlet pipe 10 is disconnected, and the drain pipe 11 is opened to discharge the cleaned sewage to the outside of the heat exchange chamber 2. At this time, the floating plate 7 and the cleaning plate 8 move downward as the water level drops, and the surface of the heat exchange tubes 6 can be cleaned again through the bristles 16. By circulating in this way, the cleaning work of the surface of the heat exchange tubes 6 can be completed. The cleaning work is simple and efficient. Furthermore, by cleaning the surface of the heat exchange tubes 6, it is beneficial to ensure the cleanliness of the surface of the heat exchange tubes 6, which helps to improve the heat exchange efficiency of the heat exchange tubes 6 and ensure the normal operation of the microalgae culture water body heat exchange system.

[0026] At both the top and bottom of multiple heat exchange tubes 6, connection plates 4 are fixedly connected in common. On the separated sides of the two connection plates 4, a heat exchange fluid inlet pipe 5 and a heat exchange fluid outlet pipe 17 are respectively connected. The heat exchange fluid outlet pipe 17 is located at the bottom of the heat exchange chamber 2. Both ends of the heat exchange tube 6 are communicated through the connection plate 4. The heat exchange fluid enters the interior of the heat exchange tube 6 through the heat exchange fluid inlet pipe 5 and the connection plate 4, and after exchanging heat with the water body, it can be discharged through the connection plate 4 and the heat exchange fluid outlet pipe 17 to complete the heat exchange work with the water body.

[0027] The diameter of the through hole 15 is larger than the diameter of the heat exchange tube 6. The water body introduced into the heat exchange chamber 2 through the water inlet pipe 10 can flow through the through hole 15 to the upper part of the cleaning plate 8, so as to facilitate the cleaning of the impurities on the cleaning plate 8 by the flowing water body. The cleaning plate 8 is located below the water delivery pipe 9. The cleaning plate 8 being located below the water delivery pipe 9 is conducive to ensuring the smooth flow of the water body to be heated and exchanged into the heat exchange chamber 2. Moreover, the cleaning plate 8 is slidably connected to the inner wall of the heat exchange chamber 2. When the cleaning plate 8 moves up and down and contacts the inner wall of the heat exchange chamber 2, it can well clean the surface of the heat exchange chamber 2. The buoyancy of the floating plate 7 is greater than the gravity of the cleaning plate 8. Relying on the buoyancy of the floating plate 7 can better drive the cleaning plate 8 to move upward.

[0028] Working principle: The water body to be heated and exchanged in the aquaculture pond 1 is conveyed to the interior of the heat exchange chamber 2 through the water pump 3 and the water delivery pipe 9, and flows out from the return pipe 12 and is conveyed back to the aquaculture pond 1 again. During this period, the heat exchange fluid flows inside the heat exchange tube 6, and the heat exchange tube 6 in contact with the water body ensures sufficient contact with the water body to achieve rapid and uniform heat exchange;

[0029] When it is necessary to clean the heat exchange tube 6, clean water is introduced into the heat exchange chamber 2 through the water inlet pipe 10. The continuous introduction of clean water drives the floating plate 7 to move upward. The upward moving floating plate 7 can drive the bristles 16 inside the cleaning plate 8 to move on the surface of the heat exchange tube 6. Thus, the moving bristles 16 can clean the surface of the heat exchange tube 6. When the cleaning plate 8 moves to the topmost position, the water inlet pipe 10 is disconnected, and the drain pipe 11 is opened to discharge the cleaned sewage to the outside of the heat exchange chamber 2. At this time, the floating plate 7 and the cleaning plate 8 move downward as the water level drops, and the surface of the heat exchange tube 6 can be cleaned again through the bristles 16. By circulating in turn, the cleaning work of the surface of the heat exchange tube 6 can be completed. The cleaning work is simple and efficient. Furthermore, by cleaning the surface of the heat exchange tube 6, it is conducive to ensuring the cleanliness of the surface of the heat exchange tube 6, which helps to improve the heat exchange efficiency of the heat exchange tube 6 and ensure the normal operation of the microalgae aquaculture water body heat exchange system.

[0030] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. An apparatus for heat exchange in microalgae culture water bodies, characterized in that, It includes a culture pond (1) and a heat exchange chamber (2) provided on one side of the culture pond (1). A water pump (3) is provided between the heat exchange chamber (2) and the culture pond (1). The water inlet of the water pump (3) is connected to the culture pond (1) through a pipeline. The water storage outlet of the water pump (3) is connected to the heat exchange chamber (2) through a water delivery pipe (9). On the side of the interior of the heat exchange chamber (2) opposite to the water delivery pipe (9), there is a return pipe (12) extending above the culture pond (1). Inside the bottom side of the heat exchange chamber (2), a plurality of heat exchange tubes (6) are evenly and fixedly connected. Inside the heat exchange chamber (2), there is a cleaning assembly for cleaning the surface of the heat exchange tubes (6). The cleaning assembly includes a floating plate (7) provided at the bottom of the heat exchange chamber (2), a cleaning plate (8) provided on the top of the floating plate (7), a water inlet pipe (10) fixedly connected to the bottom of the heat exchange chamber (2), and a drain pipe (11) fixedly connected to the bottom of the heat exchange chamber (2) and arranged opposite to the water inlet pipe (10). A plurality of through holes (15) are opened inside both the floating plate (7) and the cleaning plate (8). A plurality of the heat exchange tubes (6) are all inserted into the corresponding through holes (15). And on the inner surface of the through holes (15) of the cleaning plate (8), there are bristles (16). Valves (14) are provided on the outer sides of both the water inlet pipe (10) and the drain pipe (11).

2. The device for heat exchange of microalgae culture water body according to claim 1, characterized in that, At the top and bottom of a plurality of the heat exchange tubes (6), connection plates (4) are fixedly connected together. On the opposite sides of the two connection plates (4), a heat exchange fluid inlet pipe (5) and a heat exchange fluid outlet pipe (17) are respectively connected. The heat exchange fluid outlet pipe (17) is located at the bottom of the heat exchange chamber (2).

3. The device for heat exchange of microalgae culture water body according to claim 2, characterized in that, A temperature sensor (13) is provided inside the culture pond (1).

4. A device for heat exchange in a microalgae culture water body according to claim 3, characterized in that, The diameter of the through hole (15) is larger than the diameter of the heat exchange tube (6).

5. The device for heat exchange of microalgae culture water body according to claim 4, wherein, The cleaning plate (8) is slidably connected to the inner wall of the heat exchange chamber (2).

6. The device for heat exchange of microalgae culture water body according to claim 1, characterized in that, The cleaning plate (8) is located below the water delivery pipe (9), and the buoyancy of the floating plate (7) is greater than the gravity of the cleaning plate (8).

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