A fish pond and a temperature adjustment method applied to the fish pond

Abstract

The application discloses a fish pond, and relates to the technical field of breeding equipment, which comprises an electric heating element for heating water in the fish pond, a temperature sensor for detecting the temperature of the water in the fish pond, and a phase change material filled in a sandwich layer of the fish pond; the input end of the electric heating element is connected with a power regulator, and the power regulator is used for changing the output power of the electric heating element to adjust the temperature of the fish pond; the temperature sensor is used for detecting the temperature of the water in the fish pond, and the output power of the electric heating element is adjusted by the power regulator according to the reading of the temperature sensor and the required temperature of the fish pond, so that the temperature of the fish pond is actively adjusted; the phase change material can absorb and store part of the heat of the electric heating element, absorbs heat when the temperature of the water in the fish pond is higher than the phase change temperature, and releases heat when the temperature of the water in the fish pond is lower than the phase change temperature, so that the temperature of the fish pond is passively adjusted, the working time of the electric heating element is reduced, and the cost of adjusting the temperature of the fish pond is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aquaculture equipment, in particular to a fish pond and a temperature adjusting method applied to the fish pond. BACKGROUND

[0002] Different types of farmed fish require different water temperatures, for example, the suitable growth temperature of warm water fish is 22-23℃, and the suitable growth temperature of cold water fish is 12-18℃, and at the same time, the same type of farmed fish at different growth stages also has different water temperature preferences, for example, the water temperature preferred by farmed fish at the juvenile fish and young fish stages is 1-2℃ higher than that at the adult fish stage, so it is very important to finely adjust the water temperature according to the growth characteristics and growth stages of fish. The current fish pond water temperature adjusting method is to heat the water to a fixed temperature and then mix it with cold water to send it into the fish pond, which is difficult to achieve fine adjustment of the water temperature, and there is a lot of energy waste in the process of water heating, transmission and mixing. Obviously, the existing fish pond water temperature adjusting method needs to consume a lot of cost.

[0003] Therefore, how to achieve flexible and fine adjustment of the water temperature of the fish pond with low operating energy consumption has become a technical problem to be solved by those skilled in the art. SUMMARY

[0004] The purpose of the present application is to provide a fish pond and a temperature adjusting method applied to the fish pond, so as to solve the problems existing in the prior art and achieve flexible and fine adjustment of the water temperature of the fish pond with low operating energy consumption.

[0005] To achieve the above purpose, the present application provides the following solutions:

[0006] The present application provides a fish pond, which comprises an electric heating element for heating the water body in the fish pond, a temperature sensor for detecting the temperature of the water body in the fish pond, and a phase change material filled in the interlayer of the fish pond; a power regulator is connected to the current input end of the electric heating element, the power regulator is used to change the output power of the electric heating element to actively adjust the temperature of the fish pond, and the phase change material can absorb and store part of the heat of the electric heating element, absorb heat when the water temperature in the fish pond is higher than the phase change temperature, and release heat when the water temperature in the fish pond is lower than the phase change temperature, so as to passively adjust the temperature of the fish pond.

[0007] Preferably, the electric heating element is a direct current electric heating element, and an AC / DC rectifier is connected to the current input end of the electric heating element for converting alternating current input into direct current.

[0008] Preferably, the fish tank is provided with a side wall and / or a bottom, and the electric heating element is evenly arranged in the interlayer, and the electric heating element is a cable spirally arranged in the interlayer, or the electric heating element is an electric heating plate attached to the inner wall of the fish tank.

[0009] Preferably, the fish tank is provided with a side wall and / or a bottom, and the electric heating element is evenly arranged in the interlayer, and the electric heating element is a cable spirally arranged in the interlayer, or the electric heating element is an electric heating plate attached to the inner wall of the fish tank.

[0010] Preferably, the fish tank is provided with a side wall and / or a bottom, and the electric heating element is evenly arranged in the interlayer, and the electric heating element is a cable spirally arranged in the interlayer, or the electric heating element is an electric heating plate attached to the inner wall of the fish tank.

[0011] Preferably, the fish tank is provided with a side wall and / or a bottom, and the electric heating element is evenly arranged in the interlayer, and the electric heating element is a cable spirally arranged in the interlayer, or the electric heating element is an electric heating plate attached to the inner wall of the fish tank.

[0012] Preferably, the fish tank is provided with a side wall and / or a bottom, and the electric heating element is evenly arranged in the interlayer, and the electric heating element is a cable spirally arranged in the interlayer, or the electric heating element is an electric heating plate attached to the inner wall of the fish tank.

[0013] When the temperature of the water in the fish tank is higher than a set value, the power regulator is controlled to turn off the electric heating element or reduce the output power of the electric heating element.

[0014] When the temperature of the water in the fish tank is lower than a set value, the power regulator is controlled to turn on the electric heating element or increase the output power of the electric heating element.

[0015] Preferably, when the temperature of the water in the fish tank is higher than a set value, the water pump is controlled to be turned on or the output power of the water pump is increased to inject fresh water into the fish tank.

[0016] Preferably, the temperature sensor includes a plurality of temperature sensors, and the plurality of temperature sensors are arranged in different regions in the depth direction of the fish tank, and each region is provided with an independent electric heating element corresponding to the region, and the fish tank further includes a controller electrically connected to the temperature sensor and the electric heating element, and the controller is at least used for:

[0017] When the temperature in any region is higher than a set value, the power regulator is controlled to turn off the electric heating element in the region or reduce the output power of the electric heating element in the region.

[0018] When the temperature in any region is lower than a set value, the power regulator is controlled to turn on the electric heating element in the region or increase the output power of the electric heating element in the region.

[0019] Preferably, the fish tank further comprises a mixing pump for circulating the water in the fish tank along the depth direction of the fish tank, the mixing pump is electrically connected with the controller, and the controller is further used for:

[0020] controlling the mixing pump to start when the temperature of at least one of the zones is higher than a set value and the temperature of at least one of the zones is lower than a set value.

[0021] Preferably, the controller is used for controlling the electric heating element to start when the water temperature of the fish tank is lower than a set value in the valley electricity stage, so as to heat the phase change material to store heat and simultaneously heat the water in the fish tank to increase the temperature of the water in the fish tank.

[0022] The present application has the following technical effects relative to the prior art:

[0023] The present application detects the water temperature in the fish tank by using the temperature sensor, and adjusts the output power of the electric heating element by using the power regulator according to the reading of the temperature sensor and the required temperature of the fish tank, so as to actively adjust the temperature of the fish tank, and the phase change material can absorb and store part of the heat of the electric heating element, so as to absorb heat when the water temperature in the fish tank is higher than the phase change temperature and release heat when the water temperature in the fish tank is lower than the phase change temperature, thereby passively adjusting the temperature of the fish tank and reducing the working time of the electric heating element and the cost of adjusting the temperature of the fish tank. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] Figure 1 Fig. 1 is a structural schematic view of a fish tank;

[0026] Figure 2 Fig. 2 is a structural schematic view of a power regulator, an AC / DC rectifier and a cable;

[0027] Figure 3 Fig. 3 is a structural schematic view of a treatment tank and a fish tank;

[0028] Figure 4 Fig. 4 is a structural schematic view of a fish tank without a water inlet, a water outlet and an electric heating element, and a temperature sensor and a mixing pump;

[0029] Wherein, 1, fish pool; 2, AC / DC rectifier; 3, power regulator; 4, cable; 5, filter screen; 6, water inlet; 7, water outlet; 8, water pump; 9, treatment pool; 10, water injection port; 11, temperature sensor; 12, mixing pump. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0031] In order to make the above objectives, characteristics and advantages of the present application more apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As shown in the drawings, Figures 1-2 The present application provides a fish pool 1, which comprises an electric heating element for heating water in the fish pool 1, a temperature sensor 11 for detecting the temperature of the water in the fish pool 1, and a phase change material filled in the interlayer of the fish pool 1; the current input end of the electric heating element is connected with a power regulator 3, the power regulator 3 is used for changing the output power of the electric heating element to actively adjust the temperature of the fish pool 1, the phase change material can absorb and store part of the heat of the electric heating element, and absorb heat when the water temperature in the fish pool 1 is higher than the phase change temperature and release heat when the water temperature in the fish pool 1 is lower than the phase change temperature.

[0033] The present application detects the temperature of the water in the fish pool 1 through the temperature sensor 11, keeps the electric heating element and the power regulator 3 off by the operator or the controller when the temperature sensor 11 detects that the water temperature in the fish pool 1 is not lower than the set temperature, starts the power regulator 3 and the electric heating element by the operator or the controller when the temperature sensor 11 detects that the water temperature in the fish pool 1 is lower than the set temperature, and adjusts the power regulator 3 to adjust the output power of the electric heating element through the power regulator 3, so that the water temperature in the fish pool 1 is always maintained within the set temperature range, the stability of the water temperature in the fish pool 1 is ensured, and the growth of the farmed animals in the fish pool 1 is promoted, thereby achieving active adjustment of the temperature of the fish pool.

[0034] The phase change material filled in the interlayer of the fish tank 1 can absorb the excess heat released by the electric heating element after the water in the fish tank 1 reaches the set temperature, and store it, and then release it to adjust the temperature of the water in the fish tank 1 when the temperature of the water in the fish tank 1 is lower than the set value. At this time, the power regulator 3 and the electric heating element do not need to be turned on. If the operator or the controller detects that the water in the fish tank 1 absorbs the heat released by the phase change material and the temperature rises but still does not reach the set value through the temperature sensor 11, the power regulator 3 and the electric heating element are turned on to heat the water in the fish tank 1. Obviously, the setting of the phase change material shortens the running time of the electric heating element and the power regulator 3, reduces the power loss of the electric heating element and the power regulator 3, and thus reduces the cost of adjusting the temperature of the water in the fish tank 1.

[0035] Moreover, compared with the prior art of mixing cold and hot water to control the temperature of the water in the fish tank 1, the present application directly transmits energy by heating the water in the fish tank 1 by the electric heating element, reduces the heat loss in the process of heating, transmitting and mixing of the water in the traditional heating method such as mixing cold and hot water, saves energy consumption, and eliminates the need for additional heating equipment, thereby reducing the floor area and maintenance cost of the fish tank 1. At the same time, the present application realizes stepless power regulation of the electric heating element by feeding back the temperature sensed by the temperature sensor 11 to reverse-regulate the power regulator 3, thereby dynamically adjusting and controlling the temperature of the water in real time. Compared with the traditional method of mixing cold and hot water, the present application directly controls the stepless electric heating at the end of the water, thereby improving the accuracy, feedback speed and control flexibility of temperature control.

[0036] It should be noted that the set temperature mentioned above is a temperature suitable for the growth of the animals bred in the fish tank 1. For example, if the suitable growth temperature of the warm-water fish bred in the fish tank 1 is 23-23℃, the set temperature can be 22℃, 23℃, 22.5℃, etc. The temperature sensor 11 is a corrosion-resistant, waterproof and high-temperature-resistant temperature sensor 11. When the power regulator 3 is regulated by the controller, the power regulator 3 and the temperature sensor 11 are electrically connected to the controller, so that the controller can receive the signal of the temperature sensor 11 and regulate the power regulator 3 according to the comparison between the temperature sensor 11 and the set value. The phase change temperature of the phase change material is the same as or close to the set temperature. The phase change material can refer to the agricultural low-temperature phase change heat storage material with a phase change temperature of 15.1-34℃ in the patent document CN105733517B.

[0037] As Figures 1-2The electric heating element in the present application is a direct current electric heating element, and an AC / DC rectifier 2 for converting alternating current input into direct current is connected to the current input end of the electric heating element, and an alternating current (220V or 110V alternating current according to the working condition requirement) is connected to the AC / DC rectifier 2. The alternating current input into the electric heating element is converted into direct current by the AC / DC rectifier 2. On the one hand, since the direction of direct current in the circuit is constant, there is no periodic change of alternating current, so compared with alternating current, the voltage and current of direct current are more stable, and direct current is easier to control and adjust, which can provide more stable and accurate temperature control for the water body in the fish tank 1, and ensure the stability of the water temperature in the fish tank 1. On the other hand, compared with alternating current, the electromagnetic radiation of direct current is lower, which is beneficial to the growth of aquatic organisms sensitive to electromagnetic radiation.

[0038] As shown in Figures 1-2 The interlayer is arranged on the side wall of the fish tank 1 and / or the bottom of the fish tank 1; the electric heating element is uniformly arranged in the interlayer, and the electric heating element is a cable 4 spirally distributed in the interlayer, or the electric heating element is an electric heating plate matched with the inner wall of the fish tank 1.

[0039] The interlayer is arranged on the side wall of the fish tank 1 and / or the bottom of the fish tank 1, which includes three parallel situations: ① the interlayer is arranged only on the side wall of the fish tank 1, ② the interlayer is arranged only on the bottom of the fish tank 1, and ③ the interlayer is arranged on the bottom and the side wall of the fish tank 1. The electric heating element in the present application is uniformly arranged in the interlayer, and the electric heating element can be a heating cable 4 (for the sake of simplicity, hereinafter referred to as cable 4), an electric heating plate or other elements that can heat the water body in the fish tank 1.

[0040] The electric heating element can be a cable 4 spirally distributed in the interlayer. When the electric heating element is a cable 4, the electric heating element is spirally distributed in the interlayer of the side wall of the fish tank 1 in the vertical direction, and the electric heating element is spirally distributed in the interlayer of the bottom of the fish tank 1 in the horizontal direction. The electric heating plate matched with the inner wall of the fish tank 1 means that the electric heating plate is an arc-shaped electric heating plate arranged in the interlayer and matched with the inner wall of the fish tank 1.

[0041] When the electric heating element is a cable 4, the cable 4 is spirally distributed in the interlayer of the fish tank 1, which occupies a smaller installation space, so that the space in the fish tank 1 can be fully used for aquaculture, and the spiral distribution increases the contact area between the cable 4 and the water body in the fish tank 1, so that the water body in the fish tank 1 can be heated more uniformly when heated by the cable 4, avoiding the problem of uneven distribution of water temperature in the fish tank 1 caused by local overheating of the water body in the fish tank 1, and realizing the uniform distribution of water temperature in the fish tank 1.

[0042] Similarly, the electric heating plate which is fitted with the shape of the fish tank 1 also increases the area of the water body in the fish tank 1, and shortens the temperature rising time of the water body in the fish tank 1; in order to prevent the aquatic organisms in the fish tank 1 from being damaged by accidentally touching the electric heating plate, the electric heating plate can also be arranged in the interlayer, or a heat conduction layer is arranged on the outer surface of the electric heating plate facing the fish tank 1, so that the heat transfer of the electric heating plate is more gentle, and the aquatic organisms in the fish tank 1 are less likely to be injured after touching the electric heating plate.

[0043] As shown in Figure 3 The fish tank 1 is provided with a water inlet 6, and the bottom of the fish tank 1 is provided with a water outlet 7; and the water inlet 6 is provided with a sealing layer for preventing the water in the fish tank 1 from entering the interlayer of the fish tank 1, the sealing layer prevents the water in the fish tank 1 from contacting the electric heating element in the interlayer, and prevents the electric heating element from malfunctioning due to contact with water, and the water outlet 7 is provided with a filter screen 5 for preventing fish in the fish tank 1 from running out. Fresh water body containing dissolved oxygen and nutrients is supplemented into the fish tank 1 through the water inlet 6, after a period of time (specifically, the time when the aquatic organisms in the fish tank 1 are about to consume all the nutrients), fresh water body is continuously injected through the water inlet 6, and waste water is discharged through the water outlet 7, the filter screen 5 at the water outlet 7 prevents fish in the fish tank 1 from running out, and a filter screen for filtering impurities in the water at the water inlet 6 can also be arranged to ensure that the water is relatively clean.

[0044] Further, the water outlet of the fish tank 1 is connected with a treatment tank 9 for purifying the water, the outlet of the treatment tank 9 is connected with the water inlet 6, and the treatment tank 9 has a water injection port 10 for supplementing fresh water body. The waste water is treated by the treatment tank 9 to remove impurities and waste in the water, so that the treated water can be injected into the fish tank 1 again, thereby realizing the recycling of water resources and further reducing the operation cost of the fish tank 1. The treatment tank 9 can be a filler tank with a biological membrane reactor, or other treatment tanks 9 that can convert ammonia nitrogen, nitrite and other organic substances in the waste water into relatively harmless substances.

[0045] The water pump 8 is arranged between the water inlet 6 and the treatment tank 9, and the water pump 8 and the temperature sensor 11 are electrically connected with the controller, so that when the water temperature in the fish tank 1 is higher than the set value, the power of the water pump 8 is increased. When the controller detects that the water temperature in the fish tank 1 is higher than the set value according to the temperature sensor 11, the controller controls the power regulator to turn off or reduce the output power of the electric heating element, thereby reducing the operation cost of the electric heating element and preventing the water temperature in the fish tank 1 from being too high; and when the water temperature in the fish tank 1 is lower than the set value, the controller controls the power regulator to turn on or increase the output power of the electric heating element, so as to ensure that the water in the fish tank 1 can quickly return to the set value, and ensure the appropriate temperature of the water in the fish tank 1.

[0046] Moreover, when the water temperature in the fish tank is higher than the set value, the power of the water pump 8 to the fish tank is controlled to increase, and fresh water is injected into the fish tank 1 or more fresh water is injected to increase the dissolved oxygen content of the water in the fish tank 1 (as the temperature rises, the oxygen in the water is more easily released to the outside, that is, the solubility of oxygen in water decreases), to ensure the normal growth of aquatic organisms in the fish tank 1; at the same time, the injected fresh water can also play a role in reducing the water temperature, so that the controller can control the water pump to inject fresh water into the fish tank 1, and then determine whether to start the electric heating element according to the feedback of the temperature sensor 11, thereby further shortening the operation time of the electric heating element and reducing the operation cost of the fish tank 1. The specific settings of the temperature sensor 11 and the controller can refer to the settings of the detection circuit and the temperature control circuit in the patent document CN206879853U.

[0047] The temperature sensor 11 in the present application has various forms of settings. When the temperature sensor 11 is provided with only one, the fish tank 1 in the present application is small in size. Since the fish tank 1 is small in size, the temperature gradient in the vertical direction and the horizontal direction of the fish tank 1 is small, that is, the temperatures of the inner surface of the fish tank 1, the bottom of the fish tank 1, the central region of the fish tank 1 and the periphery of the fish tank 1 are not much different, and almost consistent.

[0048] Alternatively, when the temperature sensor 11 in the present application is provided with multiple, the multiple temperature sensors 11 are arranged in the depth direction of the fish tank 1 in regions, and each region is provided with an independent electric heating element corresponding to the region. The fish tank 1 further comprises a controller electrically connected with the temperature sensor 11 and the electric heating element, and the controller is at least used for: when the temperature in any region is higher than the set value, controlling the power regulator to turn off or reduce the output power of the electric heating element in the region; and when the temperature in any region is lower than the set value, controlling the power regulator to turn on or increase the output power of the electric heating element in the region.

[0049] Based on the above structure, the fish tank 1 is modularized, and the corresponding temperature sensor 11, power regulator and electric heating element are arranged in each region. When the water temperature in any region is higher than the set value, the controller controls the electric heating element in the region to be turned off or the output power of the electric heating element in the region to be reduced; when the water temperature in any region is lower than the set value, the controller controls the electric heating element in the region to be turned on or the output power of the electric heating element in the region to be increased; in this way, the above structure realizes more accurate real-time adjustment of the water temperature in the fish tank 1.

[0050] Further, the fish tank 1 further comprises a mixing pump 12 configured to circulate the water in the fish tank 1 along the depth direction of the fish tank 1, and the mixing pump 12 is electrically connected to the controller, and the controller is further configured to: control the mixing pump 12 to start when the temperature of at least one region is higher than the set temperature and the temperature of at least one region is lower than the set temperature. In this way, before the water in the fish tank 1 is heated by the electric heating element, the controller can first start the mixing pump 12 to circulate the water in the fish tank 1 along the depth direction of the fish tank 1, so that the temperature of the water higher than the set temperature and the temperature of the water lower than the set temperature are adjusted during the circulation process, and even the start of the electric heating element can be omitted. If it is found according to the feedback of the temperature sensor 11 that after the water is circulated by the mixing pump 12, there is still part of the water in the region whose temperature exceeds or is lower than the set value, the controller is started / turned off or the power of the electric heating element is increased / decreased to adjust the temperature of the water in the region to the set temperature of the fish tank 1 (it should be noted that the set value, the set temperature and the suitable temperature in this paper are the same concept, which are the temperature suitable for the growth of aquatic organisms in the fish tank).

[0051] Moreover, the fish tank 1 comprises an inner layer and an outer layer arranged in sequence from inside to outside and connected to each other, the inner layer is a heat-conducting layer, and the outer layer is a heat-insulating layer. The heat-conducting layer of the inner layer improves the transmission rate of the electric heating element to the fish tank 1, so that the temperature of the water in the fish tank 1 can be adjusted in a shorter time, and this significantly reduces the energy loss of the electric heating element in the transmission process, improves the heating efficiency of the electric heating element, and reduces the operation cost of the electric heating element and the fish tank 1. At the same time, since the electric heating element is in the inner layer and does not directly contact the water in the fish tank 1, the problem of damage caused by the direct contact between the aquatic organisms in the fish tank 1 and the electric heating element is also avoided. The heat-insulating layer of the outer layer isolates the electric heating element from the outside, which not only avoids the problem of energy loss of the electric heating element due to the heat generated by the electric heating element being dissipated to the outside, but also plays a protective role to avoid the problem of injury caused by the accidental contact of the operator with the electric heating element.

[0052] In addition, the controller is at least used to control the electric heating element to start when the water temperature of the fish tank 1 is lower than the set value during the valley electricity stage, so as to heat the phase change material to store heat and simultaneously heat the water in the fish tank 1 to improve the temperature of the water in the fish tank 1. That is to say, the phase change material absorbs heat when the temperature of the water in the fish tank 1 needs to be improved during the valley electricity stage, and the phase change material releases the absorbed heat to heat the water in the fish tank 1 when the temperature of the water in the fish tank 1 needs to be improved during the peak electricity stage.

[0053] The application can utilize the difference between peak and valley electricity prices, absorb the excess heat of the water body in the fish pond 1 heated by the electric heating element during the valley electricity stage at night and store the heat, and the phase change material releases heat to the water body to keep warm during the peak electricity stage in the daytime and when the water body in the fish pond 1 needs to be warmed, so as to reduce the cost of temperature adjustment of the water body in the fish pond 1.

[0054] The application adjusts the temperature of the water body in the fish pond when the temperature is not around the set value through the cooperation of the electric heating element, the phase change material, the mixing pump 12, the water pump and the like, specifically: when the temperature sensor 11 only detects that the temperature of the water body in the fish pond is lower than the set value, the electric heating element is not started temporarily, and the phase change material releases the heat stored in the inside first; when the temperature sensor 11 detects that there are both water areas with the temperature exceeding the set value and water areas with the temperature lower than the set value in the fish pond, the electric heating element is not started temporarily, and the mixing pump 12 is started first to circulate the water in the depth direction of the fish pond; if the water circulation still exists for a period of time, the electric heating element is started again; when the temperature sensor 11 only detects that there are water areas with the temperature exceeding the set value in the fish pond, the electric heating element is not started temporarily, and the water pump is started first to reduce the temperature in the fish pond through the fresh water body; if the water injection still exists for a period of time, and it is found that the temperature of the water body in the fish pond is lower than the set value, the phase change material releases the heat stored in the inside first; when the temperature of the water body in the fish pond still does not reach the set value after rising for a period of time according to the observation of the temperature sensor 11, the electric heating element is started again.

[0055] Obviously, according to the above description, the cooperation of the electric heating element, the phase change material, the mixing pump 12 and the water pump greatly shortens the operation time of the electric heating element and reduces the operation cost of the fish pond. It should be noted that the above description is not the only fixed operation direction of the fish pond in the application, but only a method with lower operation cost, and a more cost-saving operation mode can be determined according to the actual working condition.

[0056] In summary, the application reduces the energy consumption of the temperature control system, improves the temperature control precision, realizes flexible regulation and control of the temperature of the water body in the fish pond 1, and thus adapts to the temperature requirements of different types and different growth stages of the farmed fish for flexible setting and accurate real-time regulation and control.

[0057] The principle and implementation mode of the application are described by using specific examples, and the above examples are only used to help understand the method and core idea of the application; meanwhile, according to the idea of the application, the specific implementation mode and application range can be changed by the person skilled in the art. In summary, the content of the specification should not be understood as a limitation of the application.

Claims

1. A fish pond, characterized in that, It includes an electric heating element for heating the water in the fish pond, a temperature sensor for detecting the temperature of the water in the fish pond, and a phase change material filled in the interlayer of the fish pond; The current input terminal of the electric heating element is connected to a power regulator. The power regulator is used to change the output power of the electric heating element to actively regulate the temperature of the fish pond. The phase change material can absorb and store part of the heat from the electric heating element. It absorbs heat when the water temperature in the fish pond is higher than the phase change temperature and releases heat when the water temperature in the fish pond is lower than the phase change temperature to passively regulate the temperature of the fish pond. Multiple temperature sensors are arranged in zones along the depth direction of the fishpond. Each zone contains a corresponding independent electric heating element. The fishpond also includes a controller electrically connected to the temperature sensors and the electric heating elements. The controller is used for at least: When the temperature in any of the areas exceeds a set value, the power regulator is controlled to shut down the electric heating element in that area or reduce the output power of the electric heating element in that area. And, when the temperature in any of the areas is lower than a set value, the power regulator is controlled to turn on the electric heating element in that area, or to increase the output power of the heating element in that area; The fishpond also includes a mixing pump for circulating water within the fishpond along its depth direction. The mixing pump is electrically connected to the controller, which is further configured to: When the temperature of at least one of the regions is higher than a set value and the temperature of at least one of the regions is lower than a set value, the mixing pump is controlled to start. The interlayer is disposed on the side wall of the fish pond; the electric heating element is evenly disposed in the interlayer, and the electric heating element is a cable spirally distributed in the interlayer or an electric heating plate disposed in the interlayer and attached to the inner wall of the fish pond; The fish pond has a water inlet on its side wall and a water outlet at its bottom; the water outlet is connected to a treatment tank for purifying the water from the fish pond, and the outlet of the treatment tank is connected to the water inlet. A water pump is installed between the water inlet and the treatment tank, and the water pump and the temperature sensor are both electrically connected to the controller; When the water temperature in the fish pond is higher than a set value, the water pump is turned on or its output power is increased to inject fresh water into the fish pond.

2. The fish pond according to claim 1, characterized in that, The electric heating element is a DC electric heating element, and the current input terminal of the electric heating element is connected to an AC / DC rectifier for converting the AC power input into the electric heating element into DC power.

3. The fishpond according to claim 1, characterized in that, The inlet is equipped with a sealing layer to prevent water from entering the fishpond, and the outlet is equipped with a filter screen to prevent fish from escaping.

4. The fishpond according to claim 3, characterized in that, The treatment tank has an inlet for replenishing fresh water.

5. The fish pond according to claim 4, characterized in that, The controller is at least used to control the electric heating element to turn on during off-peak electricity hours and when the water temperature in the fish pond is lower than a set value, so as to heat the phase change material for heat storage and simultaneously heat the water in the fish pond to increase the water temperature in the fish pond.

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