Heating device for culture pond and culture system

Abstract

The invention provides a heating device for a culture pond and a culture system.The heating device for the culture pond comprises a liquid passing pipe, the liquid inlet end of the liquid passing pipe is used for being communicated with the liquid outlet end of the culture pond, and the liquid outlet end of the liquid passing pipe is used for being communicated with the liquid inlet end of the culture pond; the heat collection part sleeves the liquid passing pipe and is used for converting solar energy into heat energy; the heat storage part is arranged between the liquid passing pipe and the heat collection part, and the liquid passing pipe and the heat collection part are both in heat transfer connection with the heat storage part; and the heating part is used for heating the heat storage part. According to the heating device for the culture pond, solar energy can be used for heating the liquid passing pipe and the liquid in the liquid passing pipe, heat needed by survival can be provided for aquatic products to be cultured in the culture pond in a low-temperature environment, the survival rate of the aquatic products is guaranteed, energy consumption generated by heating the culture liquid is reduced, and the production cost is reduced. And fuel and electric energy consumption and carbon emission generated in the breeding liquid heating process are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of aquaculture, and in particular to a heating device for aquaculture ponds and aquaculture systems. Background Art

[0002] In the field of aquaculture, the low temperatures in winter can easily reduce the survival rate of shrimp and crab products, resulting in significant economic losses. Boilers and electric heating devices are commonly used to heat aquaculture ponds, but these require high energy or fuel consumption, increasing aquaculture costs. Summary of the Invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, according to a first aspect of an embodiment of the present disclosure, a heating device for a breeding pond is proposed, comprising:

[0005] A liquid pipe, wherein the liquid inlet end of the liquid pipe is connected to the liquid outlet end of the culture pond, and the liquid outlet end of the liquid pipe is connected to the liquid inlet end of the culture pond;

[0006] The heat collecting part is sleeved on the liquid pipe and is used to convert solar energy into thermal energy;

[0007] The heat storage part is arranged between the liquid pipe and the heat collecting part, and the liquid pipe and the heat collecting part are both heat-transferably connected to the heat storage part;

[0008] The heating part is used to heat the heat storage part.

[0009] In a feasible embodiment, the heat collecting portion includes:

[0010] A first heat-conducting layer is sleeved on the heat storage portion;

[0011] The light absorbing layer is sleeved on the first heat conducting layer;

[0012] The first heat-conducting layer is heat-conductingly connected between the light-absorbing layer and the heat storage portion.

[0013] In a feasible embodiment, the first heat conducting layer includes a graphene layer; and / or

[0014] The light absorbing layer includes a black chrome layer.

[0015] In a feasible embodiment, the heat storage unit includes:

[0016] The phase change layer is sleeved on the liquid passing pipe, and the liquid passing pipe and the heat collecting part are both connected with the phase change layer in a heat transfer manner.

[0017] In a feasible embodiment, the heat storage unit further includes:

[0018] The second heat-conducting layer is arranged between the phase-change layer and the heat-collecting portion. The phase-change layer is made of paraffin. At least a portion of the phase-change layer is located at a higher height than the second heat-conducting layer.

[0019] In a feasible embodiment, the second heat conducting layer includes a foamed metal copper layer.

[0020] In a feasible embodiment, the heating device for aquaculture pond further comprises:

[0021] A detection unit, used to detect temperature information of the heat storage unit;

[0022] The control unit is connected to the detection unit and the heating unit, and is used to control the operation of the heating unit according to the temperature information of the heat storage unit.

[0023] In a feasible embodiment, the detection unit includes:

[0024] a first temperature sensor connected to the control unit and configured to detect first temperature information of the phase change layer;

[0025] a second temperature sensor connected to the control unit and configured to detect second temperature information of the second heat-conducting layer;

[0026] The temperature information of the heat storage unit includes first temperature information.

[0027] In a feasible embodiment, the liquid-passing pipe includes:

[0028] A first protective layer is provided through the heat storage portion;

[0029] a second protective layer, disposed through the first protective layer;

[0030] a third heat-conducting layer, passing through the first protective layer and located between the first protective layer and the second protective layer;

[0031] The first protective layer and the second protective layer are made of corrosion-resistant materials, and the third heat-conducting layer is made of metal materials.

[0032] According to a second aspect of the embodiments of the present disclosure, a farming system is provided, comprising:

[0033] breeding ponds;

[0034] In the heating device for aquaculture ponds as set forth in any one of the first aspects above, the liquid outlet of the liquid pipe is connected to the liquid inlet of the aquaculture pond;

[0035] The pumping device is connected between the liquid inlet end of the liquid pipe and the liquid outlet end of the culture pond.

[0036] The above description is only an overview of the technical solution provided by the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other features and effects of the present disclosure more obvious and easy to understand, the following specifically lists the implementation methods of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0038] Figure 1 A schematic structural diagram of a heating device for a culture pond according to an embodiment of the present disclosure;

[0039] Figure 2 A schematic diagram of a farming system according to an embodiment of the present invention.

[0040] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and component names is as follows:

[0041] 100 Heating device for breeding pond; 200 Breeding pond; 300 Pumping device;

[0042] 110 liquid pipe; 120 heat collecting unit; 130 heat storage unit; 140 heating unit; 150 heat conducting pipe; 160 detection unit; 170 control unit;

[0043] 131 phase change layer; 132 second heat conducting layer;

[0044] 161 is a first temperature sensor; 162 is a second temperature sensor. DETAILED DESCRIPTION

[0045] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0046] like Figure 1 and Figure 2As shown, according to the first aspect of the embodiment of the present disclosure, a heating device 100 for aquaculture pond is proposed, including: a liquid flow pipe 110, the liquid inlet end of the liquid flow pipe 110 is used to connect with the liquid outlet end of the aquaculture pond 200, and the liquid outlet end of the liquid flow pipe 110 is used to connect with the liquid inlet end of the aquaculture pond 200; a heat collecting part 120, which is sleeved on the liquid flow pipe 110 and is used to convert solar energy into thermal energy; a heat storage part 130, which is arranged between the liquid flow pipe 110 and the heat collecting part 120, and the liquid flow pipe 110 and the heat collecting part 120 are both heat-transfer connected to the heat storage part 130; a heating part 140, which is used to heat the heat storage part 130.

[0047] The heating device 100 for aquaculture ponds provided in the embodiment of the present disclosure includes a liquid passing pipe 110, a heat collecting part 120, a heat storage part 130 and a heating part 140. In actual applications, the heating device 100 for aquaculture ponds can be arranged in aquaculture ponds 200 or used as a component of aquaculture systems. The aforementioned aquaculture ponds 200 are used to accommodate aquatic products to be cultured and aquaculture liquid for culture the aforementioned aquatic products to be cultured. The aforementioned aquatic products to be cultured may include but are not limited to one or more of fish, shrimps and crabs. The aforementioned aquaculture liquid may include water, and the aforementioned aquaculture system may include the aforementioned aquaculture ponds 200.

[0048] The heating device 100 for aquaculture pond can be connected to the aquaculture pond 200 by means of the liquid-passing pipe 110. The liquid inlet end of the liquid-passing pipe 110 can be connected to the liquid outlet end of the aquaculture pond 200. The liquid outlet end of the liquid-passing pipe 110 can be connected to the liquid inlet end of the aquaculture pond 200, thereby facilitating the circulation of the aquaculture liquid between the aquaculture pond 200 and the heating device 100 for aquaculture pond. The heat collecting portion 120 is sleeved on the liquid-passing pipe 110, and the heat storage portion 130 is provided between the heat collecting portion 120 and the liquid-passing pipe 110. 0, the heat collecting portion 120 can convert solar energy into thermal energy, and the heat storage portion 130 is heat-transfer connected between the heat collecting portion 120 and the liquid pipe 110, so that the heat storage portion 130 can absorb and store the heat energy generated by the heat collecting portion 120. Accordingly, the heat storage portion 130 can further transfer the heat energy to the liquid pipe 110 by exchanging heat with the liquid pipe 110. Based on this, the heating device 100 for the aquaculture pond can use solar energy to heat the liquid pipe 110 and the liquid in the liquid pipe 110, thereby During the process of the aquaculture fluid circulating between the aquaculture pond heating device 100 and the aquaculture pond 200, the aquaculture pond heating device 100 can be connected to the aquaculture fluid with a lower temperature discharged from the aquaculture pond 200 through the liquid pipe 110, and the heated aquaculture fluid is guided back to the aquaculture pond 200 to increase the temperature of the aquaculture fluid in the aquaculture pond 200, which is beneficial for providing the heat required for the survival of the aquatic products to be cultured in the aquaculture pond 200 in a low-temperature environment, ensuring the survival rate of the aquatic products, and reducing the energy consumption generated by heating the aquaculture fluid, thereby reducing the fuel and electricity consumption and carbon emissions generated by the aquaculture fluid heating process; the aforementioned heating part 140 is used to heat the aforementioned heat storage part 130, so that in the absence of solar energy or insufficient heat reserve in the heat storage part 130, the aquaculture pond heating device 100 can use the heating part 140 to heat the aforementioned heat storage part 130 to supplement the heat energy of the heat storage part 130, avoid interruption of heat supply to the aquaculture fluid, and provide a guarantee for the aquaculture pond heating device 100 to stably and reliably supply heat to the aquaculture fluid.

[0049] It should be noted that Figure 1 The structure cross-sectional view of the heating device 100 for the aquaculture pond is schematically shown in FIG. Figure 1 The aforementioned heating part 140 is omitted in the figure. In actual application, the setting position of the aforementioned heating part 140 can be selected according to actual needs and is not further limited here. Figure 2 The schematic diagram of the above-mentioned aquaculture system is shown in FIG. It can be understood that the above-mentioned heat storage part 130 and the liquid pipe 110 are both arranged inside the heat collection part 120, so Figure 2 The heat storage unit 130 and the liquid pipe 110 are hidden. Figure 2 The solid line segment with arrows is used to schematically represent the flow path of the aquaculture fluid.

[0050] It can be understood that the aforementioned heat collection part 120 can absorb solar energy and convert it into thermal energy. In actual applications, the heat collection part 120 can be arranged in an area suitable for receiving sunlight, for example, it can be arranged in an area that receives sunlight for a longer time during the day to improve the heat energy output efficiency of the heat collection part 120. The aforementioned area can be selected in combination with the actual situation of the environment in which the breeding pond 200 or the breeding system is located, and no excessive restrictions are made here.

[0051] It can be understood that, based on the above-mentioned arrangement, the liquid-passing pipe 110 and the heat storage section 130 are both located on the inner side of the heat collecting section 120. Accordingly, compared with the liquid-passing pipe 110 and the heat storage section 130, the heat collecting section 120 can be in a relatively exposed position, thereby facilitating the heat collecting section 120 to absorb solar energy and reducing heat loss from the liquid-passing pipe 110 and the heat storage section 130.

[0052] It can be understood that in actual applications, the operating parameters of the heating section 140 are adjustable, and the aforementioned operating states include but are not limited to heating duration, heating power, start time, shut-down time, etc., thereby improving the controllability and flexibility of the operation of the heating section 140, so that the heating section 140 can operate in the absence of solar energy or insufficient heat reserves in the heat storage section 130, replenish heat for the heat storage section 130, or be shut down when solar energy and / or heat energy stored in the heat storage section 130 are relatively abundant, so as to reduce the energy consumption of the heating device.

[0053] It is understood that a heat transfer relationship exists between the heating unit 140 and the heat storage unit 130, and the heat transfer relationship can be direct or indirect. Similarly, the heat transfer relationship between the liquid pipe 110, the heat collection unit 120, and the heat storage unit 130 can also be direct or indirect. The heating unit 140 can include an electric heating rod.

[0054] It can be understood that in actual applications, the flow rate of the aquaculture liquid flowing between the aquaculture pond 200 and the aquaculture pond heating device 100 can be changed to adjust the amount of heat absorbed by the aquaculture liquid during the flow through the aquaculture pond heating device 100, thereby regulating the temperature of the aquaculture liquid after heating.

[0055] In some feasible examples, the aforementioned liquid-passing pipe 110 , heat storage portion 130 and heat collection portion 120 may all be in the shape of circular tubes, thereby facilitating uniform heat transfer among the liquid-passing pipe 110 , heat storage portion 130 and heat collection portion 120 .

[0056] In some examples, the heat collection unit 120 includes: a first heat-conducting layer, which is sleeved on the heat storage unit 130; and a light-absorbing layer, which is sleeved on the first heat-conducting layer; wherein the first heat-conducting layer is heat-conductingly connected between the light-absorbing layer and the heat storage unit 130.

[0057] In this technical solution, the heat collecting part 120 may include the aforementioned first heat conducting layer and the light absorbing layer; based on the aforementioned setting, the heat collecting part 120 can use the light absorbing layer to absorb solar energy and convert solar energy into thermal energy, and the heat produced by the light absorbing layer can be transferred to the aforementioned heat storage part 130 through the first heat conducting layer, so that the heat storage part 130 can absorb and store heat, thereby improving the utilization efficiency of solar energy by the heating device 100 for aquaculture ponds.

[0058] It can be understood that, based on the above-mentioned arrangement, the liquid-transmitting tube 110, the heat storage portion 130 and the first heat-conducting layer are located on the inner side of the light-absorbing layer. Accordingly, compared with the liquid-transmitting tube 110, the heat storage portion 130 and the first heat-conducting layer, the light-absorbing layer can be in a relatively exposed position, thereby facilitating the light-absorbing layer to absorb solar energy and reducing heat loss from the liquid-transmitting tube 110 and the heat storage portion 130.

[0059] It should be noted that, considering the efficiency of the light-absorbing layer in collecting solar energy, in practical applications, the light-absorbing layer may be regularly maintained. For example, if the aquaculture pond heating device 100 is installed in a coastal area, the surface of the light-absorbing layer may be cleaned of salt spray deposits, dust, and other contaminants quarterly. Such cleaning methods may include, but are not limited to, scrubbing with a soft cloth, spraying with a low-pressure water gun, and the like.

[0060] In some examples, the first heat conducting layer includes a graphene layer; and / or the light absorbing layer includes a black chrome layer.

[0061] In this technical solution, the aforementioned first heat-conducting layer may include a graphene layer; based on the aforementioned setting, the heat transfer efficiency of the first heat-conducting layer can be improved, so that the heat collecting part 120 can more efficiently transfer heat to the heat storage part 130 through the first heat-conducting layer, thereby improving the utilization efficiency of solar energy by the heating device 100 for the aquaculture pond, and is conducive to increasing the heat absorption capacity of the heat storage part 130, thereby enhancing the heating effect of the heating device 100 for the aquaculture pond on the aquaculture fluid.

[0062] In this technical solution, the aforementioned light-absorbing layer may include a black chromium layer; based on the aforementioned setting, the absorption efficiency and conversion efficiency of the heat collecting part 120 for solar energy can be enhanced, and the utilization efficiency of the solar energy by the heating device 100 for the aquaculture pond can be improved, which is beneficial to increase the heat absorption capacity of the heat storage part 130 and enhance the heating effect of the heating device 100 for the aquaculture pond on the aquaculture fluid.

[0063] In this technical solution, the aforementioned first heat-conducting layer may include a graphene layer, and the aforementioned light-absorbing layer may include a black chromium layer; based on the aforementioned settings, the absorption efficiency and conversion efficiency of the heat collecting part 120 for solar energy can be improved, and heat can be transferred to the heat storage part 130 more efficiently, which is beneficial to improving the heat absorption capacity of the heat storage part 130 and enhancing the utilization efficiency of solar energy and the heating effect of the aquaculture fluid by the heating device 100 for the aquaculture pond.

[0064] It is understood that the aforementioned graphene layer can be graphene micro-nanopore films (GMNFs; Graphene Micro-Nano pores Films); the aforementioned black chromium layer is made of black chromium (Cr-CrO x ) is made.

[0065] like Figure 1 As shown, in some examples, the heat storage unit 130 includes: a phase change layer 131, which is sleeved on the liquid-passing pipe 110, and the liquid-passing pipe 110 and the heat collection unit 120 are both heat-transferably connected to the phase change layer 131.

[0066] In this technical solution, the heat storage section 130 may include the aforementioned phase change layer 131. It can be understood that the phase change layer 131 will undergo phase change during the process of absorbing or releasing heat. For example, the phase change layer 131 can liquefy during the process of absorbing heat and solidify during the process of releasing heat. Based on the aforementioned setting, the heat storage stability of the heat storage section 130 can be improved, and the heat storage capacity of the heat storage section 130 can be increased, which is conducive to extending the heating time of the liquid pipe 110 by the heat storage section 130, thereby shortening the opening time of the heating section 140, and further saving the energy consumption of the heating device 100 for the aquaculture pond.

[0067] like Figure 1 As shown, in some examples, the heat storage part 130 also includes: a second heat-conducting layer 132, which is arranged between the phase change layer 131 and the heat collection part 120, the phase change layer 131 is made of paraffin, and the position height of at least part of the phase change layer 131 is higher than the position height of the second heat-conducting layer 132.

[0068] In this technical solution, the heat storage part 130 may also include the aforementioned second heat-conducting layer 132, and the aforementioned phase change layer 131 may be made of paraffin; based on the aforementioned setting, on the one hand, the temperature fluctuation amplitude of the phase change layer 131 made of paraffin during the phase change process is small, thereby further improving the heat storage capacity of the phase change layer 131, which is beneficial to improving the maximum heat storage capacity of the heat storage layer, and further saving the energy consumption of the heating device 100 for the aquaculture pond; on the other hand, in the process of installing the heating device 100 for the aquaculture pond, at least part of the phase change layer 131 can be set along the gravity direction. The position height is higher than the position height of the second heat-conducting layer 132, so that the bottom of the phase change layer 131 made of paraffin can absorb the heat of the heat collection layer through the second heat-conducting layer 132, providing a guarantee for the phase change layer 131 to absorb heat evenly and efficiently.

[0069] It can be understood that, based on the arrangement of the aforementioned second heat-conducting layer 132 , the ability of the phase change layer to release heat to the outside can also be enhanced.

[0070] It should be noted that, during the heat exchange process, the phase change layer 131 made of paraffin is prone to a phenomenon in which the heat exchange efficiency decreases as the height of the position decreases. Therefore, based on the aforementioned setting of this technical solution, the second heat conductive layer 132 can be used to enhance the heat exchange efficiency of the bottom of the phase change layer 131 made of paraffin, thereby reducing the difference in heat exchange efficiency between the top and bottom of the phase change layer 131, and increasing the liquefaction rate of the phase change layer 131 during the heat absorption process, thereby providing a guarantee for the phase change layer 131 to absorb heat evenly and efficiently.

[0071] It should be noted that during the installation of the aquaculture pond heating device 100, the aforementioned liquid-passing pipe 110, heat collecting portion 120, and second heat-conducting layer 132 can be installed first. After the pipeline is tested for air tightness to confirm that the air tightness conditions are met, the phase change layer 131 can be filled. It is understood that the aforementioned air tightness conditions can be set in accordance with actual needs. For example, the aforementioned air tightness conditions can be maintained at a pressure of 0.6 MPa for 30 minutes without leakage. The aforementioned air tightness test can also be performed regularly during the use of the aquaculture pond heating device 100. For example, the air tightness test can be performed once or multiple times annually.

[0072] It should be noted that, considering the stability of the heat storage performance of the heat storage portion 130, the performance of the phase change layer 131 can be evaluated regularly. For example, the phase change layer 131 can be sampled and tested once or more each year to test and evaluate performance indicators such as the latent heat value and melting range stability of the phase change layer 131. If the latent heat attenuation of the phase change layer 131 exceeds 10%, the phase change layer 131 can be supplemented or replaced.

[0073] In some feasible examples, the second heat-conducting layer 132 is a mesh structure and is embedded in the phase change layer 131 .

[0074] In some feasible examples, the heating portion 140 is disposed corresponding to the second heat conducting layer 132 .

[0075] In some examples, the second thermally conductive layer 132 includes a foamed copper layer.

[0076] In this technical solution, the second heat conducting layer 132 may include the aforementioned foam metal copper layer; based on the aforementioned setting, the second heat conducting layer 132 may have a higher heat transfer coefficient, which is beneficial to further ensure the heat absorption efficiency and heat absorption uniformity of the phase change layer 131.

[0077] It should be noted that, compared to the method in which the phase change layer 131 made of paraffin is directly connected to the heat collection part 120 for heat transfer, the present disclosure provides a foamed metal copper layer between the bottom of the phase change layer 131 made of paraffin and the heat collection part 120, thereby increasing the liquefaction rate of the phase change layer 131 during the heat absorption process, thereby shortening the liquefaction time of the phase change layer 131 by about 37%, and increasing the heat transfer coefficient of the heat storage part 130 to about 398W / (m 2 ·K).

[0078] In some feasible examples, the heating device 100 for aquaculture ponds may further include a heat pipe 150, which is arranged between the heat storage part 130 and the heat collection part 120, that is, the heat collection part 120 is sleeved on the outer tube wall of the heat pipe 150, and the heat storage part 130 is passed through the inner tube wall of the heat pipe 150; based on the above arrangement, the heating device 100 for aquaculture ponds can utilize the heat pipe 150 to enhance the heat transfer efficiency between the heat collection part 120 and the heat storage part 130. Exemplarily, the aforementioned heat pipe can be a galvanized steel pipe, which can improve the corrosion resistance of the heat pipe in a freshwater environment, and the applicable temperature range of the galvanized steel pipe is -20℃-120℃, and it has good temperature tolerance; the inner pipe wall of the aforementioned galvanized steel pipe can be provided with an epoxy resin coating, and the thickness of the aforementioned epoxy resin coating can be 100μm-150μm, which is beneficial to improving the freshwater corrosion resistance of the heat pipe and has the advantage of low cost. The adhesion of the aforementioned epoxy resin coating can be greater than 10MPa; the outer pipe wall of the galvanized steel pipe can be provided with epoxy zinc-rich primer and polyurethane topcoat layer by layer, and the thickness of the aforementioned primer and the aforementioned topcoat can both be 50μm, thereby improving the weather resistance of the galvanized steel pipe to more than 8 years.

[0079] like Figure 1 and Figure 2 As shown, in some examples, the heating device 100 for aquaculture ponds further includes: a detection unit 160 for detecting temperature information of the heat storage unit 130; a control unit 170 connected to the detection unit 160 and the heating unit 140, and the control unit 170 is used to control the operation of the heating unit 140 according to the temperature information of the heat storage unit 130.

[0080] In this technical solution, the heating device 100 for aquaculture ponds may further include the aforementioned detection unit 160 and the aforementioned control unit 170; based on the aforementioned settings, the heating device 100 for aquaculture ponds may utilize the detection unit 160 to obtain the temperature information of the heat storage unit 130 to determine the amount of heat stored in the heat storage unit 130, and may utilize the control unit 170 to control the operation of the heating unit 140 according to the temperature information of the heat storage unit 130, thereby improving the automation level and ease of use of the heating device 100 for aquaculture ponds, and helping to save energy consumption of the heating device 100 for aquaculture ponds during use.

[0081] It should be noted that Figure 2 The dashed line segments without arrows are used to schematically represent the signal connection relationship. In some examples, the detection unit 160 can be set in the heat storage unit 130, so Figure 2 The dashed line segment without arrows between the control unit 170 and the heat collecting unit 120 schematically represents the signal connection relationship between the control unit 170 and the detection unit 160; Figure 2 The dashed line segment without an arrow between the control unit 170 and the heating unit 140 is used to schematically represent the signal connection relationship between the control unit 170 and the heating unit 140 .

[0082] It will be understood that the aforementioned control unit 170 is used to control the operation of the heating unit 140 based on the temperature information of the heat storage unit 130. This means, but is not limited to, that the control unit 170 can control the heating unit 140 to turn on when the temperature information of the heat storage unit 130 is lower than a preset temperature, or control the heating unit 140 to turn off when the temperature information of the heat storage unit 130 is higher than or equal to the preset temperature. This helps to avoid interruption of heating of the aquaculture liquid in the event of a lack of solar energy or insufficient heat reserve in the heat storage unit 130. The aforementioned preset temperature can be set according to actual needs and is not further limited here.

[0083] It is understood that the aforementioned lack of solar energy may include, but is not limited to, nighttime, rainy weather, and the like. Accordingly, the control unit 170 may also control the operation of the heating unit 140 based on ambient weather information and / or time information. Specifically, when the heating unit 140 operates at night, it may utilize off-peak electricity as energy, thereby further reducing the operating cost of the aquaculture pond heating device 100.

[0084] It is understood that the first detection unit 160 may include a temperature sensor. The heating unit 140 may include an electric heating rod.

[0085] For example, the control unit 170 may include an ECU (Electronic Control Unit) and a human-computer interaction interface. In practical applications, the control unit 170 may be disposed in a control room of the aquaculture pond 200 .

[0086] It should be noted that during the installation of the aquaculture pond heating device 100, the detection unit 160 can be calibrated to ensure that the detection error of the detection unit 160 is within the allowable error range. It is understandable that the allowable error range can be set in combination with actual needs. For example, the allowable error range can be less than or equal to ±0.3°C or ±0.5°C. Accordingly, during the use of the aquaculture pond heating device 100, the detection unit 160 can also be regularly inspected or calibrated. For example, the detection unit 160 can be inspected or calibrated once or more quarterly to ensure the detection accuracy of the detection unit 160. The detection unit 160 with poor detection accuracy can be replaced.

[0087] In some feasible examples, the heating power of the heating unit 140 increases as the temperature information of the heat storage unit 130 decreases. It is understandable that based on the above configuration, during the operation of the heating unit 140, the heating power of the heating unit 140 can be dynamically adjusted according to the temperature information of the heat storage unit 130, so that when the heat storage amount of the heat storage unit 130 is relatively high, the heating power can be lowered, and when the heat storage amount of the heat storage unit 130 is relatively low, the heating power can be higher. In this way, when heating the aquaculture liquid, the aquaculture pond heating device 100 can preferentially utilize the heat stored in the heat storage unit 130, further improving the energy saving level of the aquaculture pond heating device 100.

[0088] For example, in actual applications, the heating power of the heating section 140 can be controlled based on a preset PID (Proportion Integral Differential) control algorithm, so that during the operation of the heating section 140, the heat supply ratio of the heat storage section 130 and the heating section 140 decreases as the temperature information of the heat storage section 130 decreases. For example, the heating section 140 can be controlled to start when the temperature information of the heat storage section 130 is lower than the aforementioned preset temperature information, and operate at a first heating power so that the heat supply ratio of the heat storage section 130 and the heating section 140 is 1. As the temperature of the heat storage section 130 decreases, the heating power of the heating section 140 can be increased until the heat storage in the heat storage section 130 is lower than a certain limit. The heating power of the heating section 140 will be increased to the second heating power so that the heat supply ratio of the heat storage section 130 and the heating section 140 is 0. In this case, the heat energy used to heat the aquaculture liquid is completely provided by the heating section 140.

[0089] It is understood that when the control unit 170 includes the aforementioned ECU, the ECU may have the aforementioned PID control algorithm built in. It should be noted that, considering the control level of the aquaculture pond heating device 100 during long-term use, the control algorithm may be updated or optimized from time to time.

[0090] like Figure 1 As shown, in some examples, the detection unit 160 includes: a first temperature sensor 161, connected to the control unit 170, for detecting first temperature information of the phase change layer 131; a second temperature sensor 162, connected to the control unit 170, for detecting second temperature information of the second thermal conductive layer 132; wherein the temperature information of the heat storage unit 130 includes the first temperature information.

[0091] In this technical solution, the detection unit 160 may include the aforementioned first temperature sensor 161 and the aforementioned second temperature sensor 162; based on the aforementioned setting, the heating device 100 for the aquaculture pond may utilize the first temperature sensor 161 to respectively obtain the temperature information of the aforementioned phase change layer 131 and the aforementioned second heat-conducting layer 132, thereby utilizing the aforementioned first temperature information to provide reference data for the operation control of the heating unit 140, and facilitate judging the heat transfer condition of the second heat-conducting layer 132 according to the aforementioned second temperature information, thereby providing a guarantee for the stable operation of the heating device 100 for the aquaculture pond.

[0092] In some examples, the liquid pipe 110 includes: a first protective layer, which is provided through the heat storage portion 130; a second protective layer, which is provided through the first protective layer; and a third heat-conducting layer, which is provided through the first protective layer and is located between the first protective layer and the second protective layer; wherein the first protective layer and the second protective layer are made of corrosion-resistant materials, and the third heat-conducting layer is made of metal materials.

[0093] In this technical solution, the liquid flow pipe 110 may include the aforementioned first protective layer, the aforementioned second protective layer and the aforementioned third heat-conducting layer; based on the aforementioned arrangement, the tube wall of the liquid flow pipe 110 may be a multi-layer composite structure, wherein the first protective layer may serve as the outer tube wall of the liquid flow pipe 110, the second protective layer may serve as the inner tube wall of the liquid flow pipe 110, and the third heat-conducting layer may serve as an interlayer between the first protective layer and the second protective layer. Accordingly, the liquid flow pipe 110 may utilize the third heat-conducting layer made of a metal material to enhance the heat transfer efficiency between the heat storage part 130 and the aquaculture liquid, thereby ensuring the heating effect and heating efficiency of the aquaculture pond heating device 100 for the aquaculture liquid, and the first protective layer and the second protective layer made of a corrosion-resistant material may be utilized to protect the third heat-conducting layer, thereby reducing the corrosion rate of the third heat-conducting layer, extending the service life of the liquid flow pipe 110, improving the tolerance of the liquid flow pipe 110 to a high salt fog environment, and enhancing the applicability of the aquaculture pond heating device 100 in coastal areas.

[0094] In some feasible examples, the first protective layer and the second protective layer can both be made of plastic materials, thereby improving the corrosion resistance of the first protective layer and the second protective layer. For example, when the heat storage portion 130 includes a phase change layer 131 made of paraffin wax, the first protective layer and the second protective layer can both be made of PEX (cross-linked polyethylene). This allows the first protective layer and the second protective layer to have good corrosion resistance while also having good resistance to paraffin wax penetration, which is beneficial for improving the protective effect of the first protective layer and the second protective layer on the third heat conductive layer and enhancing the adaptability of the liquid pipe 110 to aquatic environments.

[0095] In some feasible examples, the third heat-conducting layer can be made of aluminum, thereby increasing the heat transfer coefficient of the third heat-conducting layer to approximately 237 W / m·K. This can enhance the thermal conductivity of the third heat-conducting layer, improve the heat transfer efficiency between the heat storage portion 130 and the aquaculture fluid, and ensure the heating effect and efficiency of the aquaculture fluid by the aquaculture pond heating device 100. It will be appreciated that when the heat storage portion 130 includes a phase change layer 131 made of paraffin wax, the third heat-conducting layer made of aluminum is suitable for buffering the volume change stress generated by the phase change layer 131 during the phase change process, thereby extending the service life of the liquid-transmitting tube 110.

[0096] It should be noted that, considering the reliability of the liquid pipe 110, during the use of the heating device 100 for the aquaculture pond, the corrosion of the liquid pipe 110 can be checked regularly. If the third heat-conducting layer is exposed, the exposed area can be sprayed with an aluminum nitride anti-corrosion coating or the liquid pipe 110 can be replaced.

[0097] In some feasible examples, the liquid pipe 110 can be a galvanized steel pipe, which can improve the corrosion resistance of the liquid pipe in a freshwater environment, and the applicable temperature range of the galvanized steel pipe is -20℃-120℃, and it has good temperature tolerance; the inner pipe wall of the aforementioned galvanized steel pipe can be provided with an epoxy resin coating, and the thickness of the aforementioned epoxy resin coating can be 100μm-150μm, which is beneficial to improving the freshwater corrosion resistance of the heat transfer pipe and has the advantage of low cost. The adhesion of the aforementioned epoxy resin coating can be greater than 10MPa; the outer pipe wall of the galvanized steel pipe can be provided with epoxy zinc-rich primer and polyurethane topcoat layer by layer, and the thickness of the aforementioned primer and the aforementioned topcoat can both be 50μm, thereby improving the weather resistance of the galvanized steel pipe to more than 8 years.

[0098] like Figure 2 As shown, according to the second aspect of the embodiment of the present disclosure, a breeding system is proposed, including: a breeding pond 200; a heating device 100 for the breeding pond as proposed in any one of the first aspects above, the liquid outlet end of the liquid pipe 110 is connected to the liquid inlet end of the breeding pond 200; a pumping device 300, connected between the liquid inlet end of the liquid pipe 110 and the liquid outlet end of the breeding pond 200.

[0099] The aquaculture system provided by the embodiment of the present disclosure includes the aforementioned aquaculture pond 200, the aforementioned pumping device 300 and the heating device 100 for the aquaculture pond as proposed in any one of the first aspects above. The aforementioned aquaculture pond 200 is used to accommodate aquatic products to be cultured and aquaculture liquid for cultivating the aforementioned aquatic products to be cultured. The aforementioned aquatic products to be cultured may include but are not limited to one or more of fish, shrimps and crabs, and the aforementioned aquaculture liquid may include water.

[0100] The heating device 100 for the aquaculture pool can be connected to the aquaculture pool 200 by means of the liquid-passing pipe 110. The liquid inlet end of the liquid-passing pipe 110 can be connected to the liquid outlet end of the aquaculture pool 200. The liquid outlet end of the liquid-passing pipe 110 can be connected to the liquid inlet end of the aquaculture pool 200. The pumping device 300 is located between the liquid inlet end of the liquid-passing pipe 110 and the liquid outlet end of the aquaculture pool 200 and is used to drive the aquaculture liquid to flow from the liquid outlet end of the aquaculture pool 200 to the liquid inlet end of the liquid-passing pipe 110, thereby facilitating the circulation of the aquaculture liquid between the aquaculture pool 200 and the aquaculture pool. The heating device 100; the aforementioned heat collecting portion 120 is sleeved on the liquid pipe 110, and the aforementioned heat storage portion 130 is arranged between the heat collecting portion 120 and the liquid pipe 110. The heat collecting portion 120 can convert solar energy into thermal energy, and the heat storage portion 130 is heat-transfer connected between the heat collecting portion 120 and the liquid pipe 110, so that the heat storage portion 130 can absorb and store the heat energy generated by the heat collecting portion 120. Accordingly, the heat storage portion 130 can further transfer the heat energy to the liquid pipe 110 by exchanging heat with the liquid pipe 110. Based on this, the heating device 1 for the aquaculture pond 00 can use solar energy to heat the liquid pipe 110 and the liquid in the liquid pipe 110. Then, when the aquaculture liquid circulates between the aquaculture pool heating device 100 and the aquaculture pool 200, the aquaculture pool heating device 100 can be connected to the aquaculture liquid with a lower temperature discharged from the aquaculture pool 200 through the liquid pipe 110, and the heated aquaculture liquid is guided back to the aquaculture pool 200 to increase the temperature of the aquaculture liquid in the aquaculture pool 200, which is beneficial to provide the heat required for the survival of the aquatic products in the aquaculture pool 200 in a low temperature environment, thereby ensuring the heat of the aquatic products. The survival rate of the aquaculture pond can be improved, and the energy consumption caused by heating the aquaculture liquid can be reduced, thereby reducing the fuel and electricity consumption and carbon emissions generated in the aquaculture liquid heating process; the aforementioned heating part 140 is used to heat the aforementioned heat storage part 130, so that in the absence of solar energy or insufficient heat reserve in the heat storage part 130, the aquaculture pond heating device 100 can use the heating part 140 to heat the aforementioned heat storage part 130 to supplement the heat energy of the heat storage part 130, avoid interruption of the heat supply to the aquaculture liquid, and provide a guarantee for the aquaculture pond heating device 100 to stably and reliably supply heat to the aquaculture liquid.

[0101] It can be understood that the aforementioned heat collection part 120 can absorb solar energy and convert it into thermal energy. In actual applications, the heat collection part 120 can be arranged in an area suitable for receiving sunlight, for example, it can be arranged in an area that receives sunlight for a longer time during the day to improve the heat energy output efficiency of the heat collection part 120. The aforementioned area can be selected in combination with the actual situation of the environment in which the breeding pond 200 or the breeding system is located, and no excessive restrictions are made here.

[0102] It can be understood that, based on the above-mentioned arrangement, the liquid-passing pipe 110 and the heat storage section 130 are both located on the inner side of the heat collecting section 120. Accordingly, compared with the liquid-passing pipe 110 and the heat storage section 130, the heat collecting section 120 can be in a relatively exposed position, thereby facilitating the heat collecting section 120 to absorb solar energy and reducing heat loss from the liquid-passing pipe 110 and the heat storage section 130.

[0103] It can be understood that in actual applications, the operating parameters of the heating section 140 are adjustable, and the aforementioned operating states include but are not limited to heating duration, heating power, start time, shut-down time, etc., thereby improving the controllability and flexibility of the operation of the heating section 140, so that the heating section 140 can operate in the absence of solar energy or insufficient heat reserves in the heat storage section 130, replenish heat for the heat storage section 130, or be shut down when solar energy and / or heat energy stored in the heat storage section 130 are relatively abundant, so as to reduce the energy consumption of the heating device.

[0104] It is understood that a heat transfer relationship exists between the heating unit 140 and the heat storage unit 130, and the heat transfer relationship can be direct or indirect. Similarly, the heat transfer relationship between the liquid pipe 110, the heat collection unit 120, and the heat storage unit 130 can also be direct or indirect. The heating unit 140 can include an electric heating rod.

[0105] It can be understood that in actual applications, the flow rate of the aquaculture liquid flowing between the aquaculture pond 200 and the aquaculture pond heating device 100 can be changed to adjust the amount of heat absorbed by the aquaculture liquid during the flow through the aquaculture pond heating device 100, thereby regulating the temperature of the aquaculture liquid after heating.

[0106] It should be noted that, considering the operational stability of the pumping device 300, the pumping device 300 may be subjected to regular or irregular maintenance. During the maintenance process, the operational noise and vibration of the pumping device 300 may be checked, and the filter of the pumping device 300 may be cleaned. In the case where valve-like devices are provided on the connecting pipelines between the pumping device 300, the aquaculture pond 200 and the aforementioned aquaculture pond heating device 100, the aforementioned valve-like devices may also be subjected to regular or irregular maintenance, such as lubricating the rotating shaft of the valve-like devices, to prevent the valve-like devices from getting stuck.

[0107] In some feasible examples, the aforementioned liquid-passing pipe 110 , heat storage portion 130 and heat collection portion 120 may all be in the shape of circular tubes, thereby facilitating uniform heat transfer among the liquid-passing pipe 110 , heat storage portion 130 and heat collection portion 120 .

[0108] In some feasible examples, the aquaculture system may further include a temperature collection device, which is disposed within the aquaculture pond 200 and is used to detect the temperature of the aquaculture fluid within the aquaculture pond 200. For example, the temperature collection device may include a third temperature sensor, which may be disposed at a position between 1 / 2 and 1 / 3 of the liquid depth within the aquaculture pond 200. The specific location of the third temperature sensor may be determined based on the active layer of the aquatic product to be aquacultured.

[0109] like Figure 2 As shown, in some feasible examples, when the heating device 100 for the aquaculture pond includes the aforementioned detection unit 160 and the aforementioned control unit 170, the aforementioned collection device is connected to the aforementioned control unit 170; the aforementioned control unit 170 is also connected to the pumping device 300, and is used to control the pumping device 300 to be turned off when the temperature information of the aquaculture liquid in the aquaculture pond 200 is higher than the preset temperature range, or to control the pumping device 300 to be turned on when the temperature information of the aquaculture liquid in the aquaculture pond 200 is not higher than the preset temperature range; the aforementioned control unit 170 is also used to control the heating unit 140 to be turned on when the temperature information of the aquaculture liquid in the aquaculture pond 200 is lower than the preset temperature range and the temperature information of the heat storage unit 130 is lower than the preset temperature, or to control the heating unit 140 to be turned off when the temperature information of the heat storage unit 130 is higher than the preset temperature.

[0110] It should be noted that Figure 2 The dashed line segment without arrows between the control unit 170 and the breeding pond 200 schematically represents the signal connection relationship between the control unit 170 and the collection device.

[0111] It is understandable that the aforementioned preset temperature can be set according to actual needs; the aforementioned preset temperature range can be set according to the specific conditions of the aquatic products to be farmed. For example, the preset temperature range can be but is not limited to 28°C ± 2°C.

[0112] In addition, since the aquaculture system provided by the embodiment of the present disclosure includes the heating device 100 for the aquaculture pond as proposed in any one of the first aspects above, it has all the beneficial effects of the heating device, which will not be described in detail here.

[0113] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0114] In the description of the present disclosure, it is to be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation on the present disclosure.

[0115] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0116] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A heating device for aquaculture pond, characterized in that: include: a liquid passage pipe, wherein the liquid inlet end of the liquid passage pipe is used to communicate with the liquid outlet end of the culture pond, and the liquid outlet end of the liquid passage pipe is used to communicate with the liquid inlet end of the culture pond; A heat collecting part, sleeved on the liquid-passing pipe, for converting solar energy into thermal energy; A heat storage portion is provided between the liquid-passing pipe and the heat collecting portion, wherein both the liquid-passing pipe and the heat collecting portion are heat-transferably connected to the heat storage portion; The heating part is used to heat the heat storage part.

2. The heating device for aquaculture pond according to claim 1, characterized in that: The heat collecting portion comprises: a first heat-conducting layer, sleeved on the heat storage portion; a light absorbing layer, sleeved on the first heat conducting layer; Wherein, the first heat-conducting layer is heat-conductingly connected between the light-absorbing layer and the heat storage portion.

3. The heating device for aquaculture pond according to claim 2, characterized in that: The first heat-conducting layer comprises a graphene layer; and / or The light absorbing layer includes a black chrome layer.

4. The heating device for aquaculture pond according to claim 1, characterized in that: The heat storage unit includes: The phase change layer is sleeved on the liquid-passing pipe, and the liquid-passing pipe and the heat collecting part are both connected to the phase change layer in a heat-transfer manner.

5. The heating device for aquaculture pond according to claim 4, characterized in that: The heat storage unit further includes: The second heat-conducting layer is arranged between the phase change layer and the heat collecting portion. The phase change layer is made of paraffin. At least a portion of the phase change layer is located at a higher height than the second heat-conducting layer.

6. The heating device for aquaculture pond according to claim 5, characterized in that: The second heat conducting layer includes a foamed metal copper layer.

7. The heating device for aquaculture pond according to claim 5, characterized in that: Also includes: a detection unit, configured to detect temperature information of the heat storage unit; The control unit is connected to the detection unit and the heating unit, and is used to control the operation of the heating unit according to the temperature information of the heat storage unit.

8. The heating device for aquaculture pond according to claim 7, characterized in that: The detection unit includes: a first temperature sensor, connected to the control unit, for detecting first temperature information of the phase change layer; a second temperature sensor, connected to the control unit, for detecting second temperature information of the second heat-conducting layer; The temperature information of the heat storage unit includes the first temperature information.

9. The heating device for aquaculture pond according to any one of claims 1 to 7, characterized in that: The liquid passage pipe comprises: a first protective layer, disposed through the heat storage portion; a second protective layer, disposed through the first protective layer; a third heat-conducting layer, passing through the first protective layer and located between the first protective layer and the second protective layer; The first protective layer and the second protective layer are made of corrosion-resistant materials, and the third heat-conducting layer is made of metal materials.

10. A breeding system, characterized in that: include: breeding ponds; The heating device for a culture pond according to any one of claims 1 to 9, wherein the liquid outlet end of the liquid passage pipe is connected to the liquid inlet end of the culture pond; A pumping device is connected between the liquid inlet end of the liquid pipe and the liquid outlet end of the culture pond.

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