A thermal cycle type breeding pond electric heating device

Abstract

The present application relates to the field of breeding, specifically is a kind of electric heating device of heat cycle type breeding pond, including breeding pond, heat exchange component and water changing component, the breeding pond is composed of breeding area and heating heat exchange area two parts, the breeding area and the heating heat exchange area between being provided with baffle, the upper end of the baffle is evenly provided with multiple groups of through holes, the inside of the heating heat exchange area is installed with hot mixing component, one end of the breeding pond is installed with frequency conversion water pump, the other two ends of import electric tee joint are connected with water inlet pipe and main blow-off pipe respectively, the other two ends of export electric tee joint are connected with water outlet pipe and drain pipe respectively.Main blade located in four-way pipe, under the high flow rate water impact, make main blade rotate in four-way pipe, vice blade rotates along with the rotation of main blade.When vice blade rotates, hot water and cold water in heating heat exchange area are mixed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aquaculture, in particular to a heat cycle type aquaculture pond electric heating device. BACKGROUND

[0002] According to the nature of water, it is divided into mariculture and freshwater aquaculture. According to the breeding and planting objects, it is divided into fish, shrimp and crab, shellfish, and algae, lotus, lotus and other objects. China's aquaculture industry has a long history. At present, full-automatic constant temperature regulating devices will be equipped in the field of aquaculture to control the water temperature at a temperature suitable for fish and other aquatic organisms.

[0003] The current aquaculture pond has the following deficiencies: it cannot be heated and mixed with hot and cold water, and can only rely on the mixing of hot and cold water, and the energy transfer of hot water to raise the temperature of the water with relatively low temperature. The efficiency is relatively slow, and it does not have the functions of automatic water replacement, water replenishment and water temperature adjustment in the breeding area, and can only rely on manual detection and judgment to replace. SUMMARY

[0004] The present application provides a heat cycle type aquaculture pond electric heating device to solve the technical problems in the prior art.

[0005] The technical scheme for solving the above technical problems is as follows: a heat cycle type aquaculture pond electric heating device, comprising an aquaculture pond, a heat exchange assembly and a water changing assembly, the aquaculture pond is composed of a breeding area and a heating and heat exchange area, a partition is arranged between the breeding area and the heating and heat exchange area, a plurality of groups of through holes are uniformly arranged on the upper end of the partition, a heating frame is installed on the upper end of the heating and heat exchange area, an electric heating rod with a heating end located in the heating and heat exchange area is installed on the heating frame, a heat mixing assembly is installed in the heating and heat exchange area, a variable frequency water pump is installed at one end of the aquaculture pond, an inlet electric three-way valve and an outlet electric three-way valve are connected to the inlet and outlet of the variable frequency water pump respectively, a water inlet pipe and a main sewage pipe are connected to the other two ends of the inlet electric three-way valve respectively, and a water outlet pipe and a drain pipe are connected to the other two ends of the outlet electric three-way valve.

[0006] Preferably, the above-mentioned electric heating device for heat cycle type breeding pond, wherein the heat exchange assembly comprises a water inlet pipe, a water outlet pipe, a mixed heat assembly and a temperature sensor, the other end of the water inlet pipe is located inside the heating heat exchange area, the one end of the water inlet pipe close to the heating heat exchange area is installed with a Y-type filter, the other end of the water outlet pipe is connected with a four-way pipe through bolts, the upper and lower ends of the four-way pipe are respectively welded with a connecting short pipe, the two ends of the connecting short pipe are bolted with a water injection pipe, the water injection pipe penetrates the heating heat exchange area and is located inside the breeding area, the water injection pipe inside the breeding area is uniformly provided with a row of drainage holes on one side, and the temperature sensor is installed side by side on the side of the breeding area.

[0007] Preferably, the above-mentioned electric heating device for heat cycle type breeding pond, wherein the frequency conversion water pump, the inlet electric three-way pipe, the outlet electric three-way pipe, the temperature sensor and the electric heating rod are connected by electric signal to constitute a heating heat exchange system, the temperature sensor is provided with three groups, and the temperature sensor is located between the two groups of water injection pipes.

[0008] Preferably, the above-mentioned electric heating device for heat cycle type breeding pond, wherein the mixed heat assembly comprises a main transmission shaft and a secondary transmission shaft, the one end of the four-way pipe away from the water outlet pipe is welded with a first bearing, the one end of the main transmission shaft is installed with a main blade, the main blade is located between the four-way pipe and the water outlet pipe, the other end of the main transmission shaft penetrates the first bearing and the breeding pond inside the heating heat exchange area, the second bearing is installed on the inner wall of the partition plate in the heating heat exchange area, the other end of the main transmission shaft is installed in the inside of the second bearing, the main cone gear is installed on the main transmission shaft inside the heating heat exchange area, the secondary cone gears are meshed and connected on the two sides of the main cone gear, the one end of the secondary transmission shaft is installed with a secondary cone gear, the secondary transmission shaft is installed with a secondary blade, the third bearing is fixed on the inner wall of the heating heat exchange area on the two sides, and the other end of the secondary transmission shaft is installed in the inside of the third bearing.

[0009] Preferably, the above-mentioned electric heating device for heat cycle type breeding pond, wherein the four-way pipe is composed of a group of four-ways and a ring-shaped cover, the outer side of the ring-shaped cover is provided with a flange, the inside of the ring-shaped cover is installed with a main blade, the maximum diameter of the main blade is smaller than the inner diameter size of the ring-shaped cover, the center axis of the main blade and the center axis of the ring-shaped cover coincide, the two ends of the water outlet pipe are respectively welded with a flange, and the four-way pipe and the water outlet pipe are connected by bolts.

[0010] Preferably, the above-mentioned electric heating device for heat cycle type breeding pond, wherein the secondary transmission shaft and the secondary blade constitute a sliding structure, and the secondary blade is located between the four groups of electric heating rods.

[0011] Preferably, the electric heating device for the thermal cycle type breeding pond has a reverse conical bottom of the breeding area, and a sewage outlet is arranged at the center of the bottom of the breeding area.

[0012] Preferably, the electric heating device for the thermal cycle type breeding pond has a water exchange assembly including a main sewage pipe and a drain pipe, the other end of the main sewage pipe is located inside the breeding area, a branch sewage pipe is arranged on the main sewage pipe, the other end of the branch sewage pipe is located at the sewage outlet arranged at the bottom of the breeding area, a water quality sensor and a liquid level sensor are arranged at the upper and lower ends of the side of the breeding area, a water supply pipe is arranged on the side of the heating and heat exchange area, and an electric ball valve is arranged at the front end of the water supply pipe.

[0013] Preferably, the electric heating device for the thermal cycle type breeding pond has a main sewage pipe with a diameter larger than that of the branch sewage pipe, the water supply pipe has a height higher than the lowest position of the through hole arranged on the partition plate, and the height of the liquid level sensor is the same as the height of the through hole arranged on the lowest position of the partition plate.

[0014] Preferably, the electric heating device for the thermal cycle type breeding pond has an automatic sewage and water supply system formed by the electrical signal connection between the variable frequency water pump, the inlet electric tee joint, the outlet electric tee joint, the water quality sensor and the liquid level sensor.

[0015] The electric heating device for the thermal cycle type breeding pond has the following beneficial effects: the water is pumped out of the heating and heat exchange area by the variable frequency water pump through the water inlet pipe, flows into the four-way pipe through the water outlet pipe by the outlet electric tee joint, and is injected into the breeding area through the water injection pipe, so as to improve the water temperature in the breeding area; when the water flows through the four-way pipe, the main blade in the four-way pipe rotates under the impact of high-speed water, and the main transmission shaft rotates under the driving of the main blade, so that the main cone wheel at the other end of the main transmission shaft rotates; the main cone wheel and the secondary cone wheel are engaged, the secondary blade on the secondary transmission shaft rotates under the driving of the main blade, and the water in the heating and heat exchange area and the cold water overflowing from the through hole arranged on the partition plate are mixed to heat the water, so as to realize the thermal cycle process and accelerate the process of cold and hot water.

[0016] The water temperature data is transmitted to the PLC control panel through the temperature sensor, and then the PLC control panel adjusts the working efficiency of the electric heating rod according to the water temperature in the breeding area, so that the temperature of the electric heating rod heating the water meets the survival temperature of the breeding organisms in the breeding area. When the water quality sensor detects that the water quality in the breeding area is reduced, the water quality sensor will send the detected data to the PLC control panel, and the PLC internal program will determine, at this time, the inlet electric three-way valve and the outlet electric three-way valve will be switched, and then the water changing system will be started, and the sewage in the breeding area will be pumped out through the main sewage pipe and the auxiliary sewage pipe through the frequency conversion water pump, and the waste water will be discharged outside the breeding pond through the drain pipe. When the liquid level sensor detects that the water level in the breeding area is below the warning water level, the electric ball valve installed at the front end of the water inlet pipe will be opened, and water will be added to the heating and heat exchange area through the water inlet pipe. At this time, the water level in the heating and heat exchange area will be raised, and then the water source in the heating and heat exchange area will flow to the breeding area, and the flow rate of the frequency conversion water pump will be the same as the speed of the water inlet pipe and the drain pipe, so that the water quality is replaced without affecting the survival of the organisms in the breeding area. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a top view structure schematic diagram of the application;

[0018] Figure 2 It is a shaft side structure schematic diagram of the application;

[0019] Figure 3 It is a breeding pond shaft side section structure schematic diagram of the application;

[0020] Figure 4 It is a heating and heat exchange structure schematic diagram of the heat exchange assembly of the application;

[0021] Figure 5 It is a heat exchange structure schematic diagram of the application;

[0022] Figure 6 It is a water changing structure schematic diagram of the application.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, breeding pond; 11, breeding area; 12, heating and heat exchange area; 13, partition; 2, variable frequency water pump; 3, inlet electric tee; 4, outlet electric tee; 5, heat exchange assembly; 51, water inlet pipe; 52, Y-type filter; 53, water outlet pipe; 54, four-way pipe; 55, connecting short pipe; 56, water injection pipe; 57, heat mixing assembly; 571, main transmission shaft; 572, main blade; 573, first bearing; 574, second bearing; 575, main cone gear; 576, secondary transmission shaft; 577, secondary blade; 578, secondary cone gear; 579, third bearing; 58, temperature sensor; 6, heating frame; 7, electric heating rod; 8, water exchange assembly; 81, main blowdown pipe; 82, secondary blowdown pipe; 83, drain pipe; 84, water quality sensor; 85, liquid level sensor; 86, water filling pipe. DETAILED DESCRIPTION

[0025] The principles and features of the present application are described below in conjunction with the accompanying drawings, which are only used to explain the present application and not intended to limit the scope of the present application.

[0026] As shown in Figures 1-6 , a heat cycle type breeding pond electric heating device, comprising a breeding pond 1, a heat exchange assembly 5 and a water exchange assembly 8, the breeding pond 1 is composed of a breeding area 11 and a heating and heat exchange area 12, a partition 13 is arranged between the breeding area 11 and the heating and heat exchange area 12, a plurality of through holes are uniformly arranged on the upper end of the partition 13, a heating frame 6 is installed on the upper end of the heating and heat exchange area 12, an electric heating rod 7 with a heating end located inside the heating and heat exchange area 12 is installed on the heating frame 6, a heat mixing assembly 57 is installed inside the heating and heat exchange area 12, a variable frequency water pump 2 is installed at one end of the breeding pond 1, an inlet electric tee 3 and an outlet electric tee 4 are connected to the inlet and outlet ends of the variable frequency water pump 2 respectively, a water inlet pipe 51 and a main blowdown pipe 81 are connected to the other two ends of the inlet electric tee 3 respectively, and a water outlet pipe 53 and a drain pipe 83 are connected to the other two ends of the outlet electric tee 4 respectively.

[0027] As shown in Figure 1 , Figure 2 and Figure 5As shown, the heat exchange assembly 5 includes a water inlet pipe 51, a water outlet pipe 53, a mixing heat assembly 57, and a temperature sensor 58. The other end of the water inlet pipe 51 is located inside the heating heat exchange area 12, and a Y-shaped filter 52 is installed at one end of the water inlet pipe 51 close to the heating heat exchange area 12. The other end of the water outlet pipe 53 is bolted with a four-way pipe 54, and the upper and lower ends of the four-way pipe 54 are welded with connecting short pipes 55, respectively. The two ends of the connecting short pipes 55 are bolted with water injection pipes 56, which penetrate the heating heat exchange area 12 and are located inside the breeding area 11. The water injection pipes 56 located inside the breeding area 11 have a row of drainage holes uniformly on one side. The temperature sensor 58 is installed side by side on the side of the breeding area 11. The frequency conversion water pump 2, the inlet electric three-way pipe 3, the outlet electric three-way pipe 4, the temperature sensor 58, and the electric heating rod 7 are electrically connected to form a heating and heat exchange system. The temperature sensor 58 is provided with three groups, and the temperature sensor 58 is located between the two groups of water injection pipes 56.

[0028] In the above implementation process, the temperature sensor 58 installed on the breeding area 11 detects the water temperature inside the breeding area 11 in real time, and transmits the water temperature data to the PLC control panel (not shown in the figure), so that the PLC control panel adjusts the working efficiency of the electric heating rod 7 according to the water temperature inside the breeding area 11, and the temperature of the water heated by the electric heating rod 7 meets the survival temperature of the breeding organisms inside the breeding area 11.

[0029] In the above implementation process, the Y-shaped filter 52 installed between the heating heat exchange area 12 and the water inlet pipe 51 filters the biological residues remaining in the heating heat exchange area 12, and then uses the frequency conversion water pump 2, the inlet electric three-way pipe 3, the outlet electric three-way pipe 4, the water inlet pipe 51, the water outlet pipe 53, and the water injection pipe 56 to perform hot water circulation. When hot water circulation is performed, the inlet electric three-way pipe 3 and the outlet electric three-way pipe 4 are connected to the water inlet pipe 51 and the water outlet pipe 53 inside the pipeline, which is in an open state, and the water quality inside the breeding area 11 can be purified.

[0030] In some embodiments, the water temperature inside the breeding area 11 is affected by the weather environment, so that the water temperature inside the breeding area 11 decreases. When the temperature sensor 58 detects that the water temperature continues to decrease, the heating power of the electric heating rod 7 can be increased to increase the water temperature rising speed inside the heating heat exchange area 12, and the frequency of the frequency conversion water pump 2 can be increased to speed up the hot water circulation speed, so that the hot water inside the heating heat exchange area 12 can be injected into the breeding area 11 through the water inlet pipe 51, the water outlet pipe 53, and the water injection pipe 56 more quickly, and the water temperature inside the breeding area 11 is increased.

[0031] As Figure 3 and Figure 4As shown, the mixing assembly 57 comprises a main transmission shaft 571 and a secondary transmission shaft 576. A first bearing 573 is welded to one end of the four-way pipe 54 away from the water outlet pipe 53. A main blade 572 is mounted to one end of the main transmission shaft 571. The main blade 572 is located between the four-way pipe 54 and the water outlet pipe 53. The other end of the main transmission shaft 571 penetrates the first bearing 573 and is located inside the breeding pond 1 in the heating and heat exchange area 12. A second bearing 574 is mounted to the inner wall of the partition 13 in the heating and heat exchange area 12. The other end of the main transmission shaft 571 is mounted in the second bearing 574. A main bevel gear 575 is mounted on the main transmission shaft 571 inside the heating and heat exchange area 12. A secondary bevel gear 578 is meshingly connected to both sides of the main bevel gear 575. The secondary bevel gear 578 is mounted to one end of the secondary transmission shaft 576. The secondary transmission shaft 576 is provided with a secondary blade 577. A third bearing 579 is fixed to the inner wall of the heating and heat exchange area 12. The other end of the secondary transmission shaft 576 is mounted in the third bearing 579. The four-way pipe 54 is composed of a set of four-ways and a ring-shaped cover. A flange is arranged outside the ring-shaped cover. The main blade 572 is mounted in the ring-shaped cover. The maximum diameter of the main blade 572 is smaller than the inner diameter of the ring-shaped cover. The central axis of the main blade 572 coincides with the central axis of the ring-shaped cover. Flanges are welded to both ends of the water outlet pipe 53. The four-way pipe 54 and the water outlet pipe 53 are connected by bolts. The secondary transmission shaft 576 and the secondary blade 577 form a sliding structure. The secondary blade 577 is located between the four electric heating rods 7.

[0032] In the above implementation process, water is flowed into the four-way pipe 54 from the water outlet pipe 53 through the outlet electric three-way pipe 4 by the variable frequency water pump 2. The position and the fan-shaped structure of the main blade 572 are designed. Under the impact of high-speed water, the main blade 572 rotates in the four-way pipe 54, thereby driving the main transmission shaft 571 to rotate, so that the main bevel gear 575 mounted at the other end of the main transmission shaft 571 rotates. Since the secondary bevel gear 578 mounted at one end of the secondary transmission shaft 576 is meshingly connected with the main bevel gear 575, and the other end of the secondary transmission shaft 576 is mounted in the third bearing 579, the position of the secondary transmission shaft 576 is fixed. By means of the meshing transmission of the gears, the secondary blade 577 mounted on the secondary transmission shaft 576 rotates with the main blade 572 under the cooperation of the main bevel gear 575 and the secondary bevel gear 578. At the same time, the secondary blade 577 is mounted between the four electric heating rods 7. When the secondary blade 577 rotates, the hot water and the cold water in the heating and heat exchange area 12 are mixed, thereby heating the water with relatively low temperature overflowing from the breeding area 11 through the through hole in the partition 13.

[0033] In some embodiments, the secondary vane 577 can slide on the secondary transmission shaft 576 by installing a clamping bolt on the secondary vane 577, thereby changing the relative position of the secondary vane 577 and the electric heating rod 7, so that the hot water near the electric heating rod 7 can be mixed with the water with relatively low temperature.

[0034] In some embodiments, the through hole formed on the partition plate 13 can preliminarily filter or block the cultured organisms or larger impurities inside the breeding area 11, and the cultured organisms or impurities flow into the heating and heat exchange area 12. The size of the through hole formed on the partition plate 13 can be selected according to the size of the cultured organisms.

[0035] As shown in Figure 1 , Figure 2 and Figure 6 , the water changing assembly 8 includes a main sewage pipe 81 and a drain pipe 83. The other end of the main sewage pipe 81 is located inside the breeding area 11. A branch secondary sewage pipe 82 is installed on the main sewage pipe 81. The other end of the secondary sewage pipe 82 is located at the sewage outlet formed at the bottom of the breeding area 11. A water quality sensor 84 and a liquid level sensor 85 are respectively arranged at the upper and lower ends of the side surface of the breeding area 11. A water filling pipe 86 is installed on the side surface of the heating and heat exchange area 12. An electric ball valve is installed at the front end of the water filling pipe 86. The diameter of the main sewage pipe 81 is larger than the diameter of the secondary sewage pipe 82. The height of the water filling pipe 86 is higher than the height of the lowest through hole formed on the partition plate 13. The height of the liquid level sensor 85 is the same as the height of the lowest through hole formed on the partition plate 13. The automatic sewage and water replenishment system is formed by the electrical signal connection between the variable frequency water pump 2, the inlet electric tee joint 3, the outlet electric tee joint 4, the water quality sensor 84 and the liquid level sensor 85.

[0036] In the above implementation process, when the water quality sensor 84 detects that the water quality inside the breeding area 11 decreases and does not meet the survival standard of the organisms, the water quality sensor 84 sends the detected data to the PLC control panel. The PLC internal program makes a judgment. At this time, the inlet electric tee joint 3 and the outlet electric tee joint 4 inside the flow pipe are switched, and then the water changing system is started. The sewage inside the breeding area 11 is pumped out through the main sewage pipe 81 and the secondary sewage pipe 82 by the variable frequency water pump 2. Due to the size and structure design of the main sewage pipe 81 and the secondary sewage pipe 82, the main sewage pipe 81 can pump out the sewage, and the secondary sewage pipe 82 can pump out the excrement and impurities deposited at the bottom of the breeding area 11. Finally, the waste water is discharged out of the breeding tank 1 through the drain pipe 83 by the variable frequency water pump 2 and the outlet electric tee joint 4.

[0037] In the process of the above implementation, when the liquid level sensor 85 detects that the water level inside the breeding area 11 reaches below the warning water level, at the same time that the water inside the breeding area 11 does not flow to the heating and heat exchange area 12, the electric ball valve installed at the front end of the water inlet pipe 86 is controlled to open, and water is added to the inside of the heating and heat exchange area 12 through the water inlet pipe 86, at this time the water level inside the heating and heat exchange area 12 rises, thereby making the water source inside the heating and heat exchange area 12 flow to the inside of the breeding area 11, and through the flow rate of the variable frequency water pump 2, the speed of the water inlet pipe 86 adding water and the speed of the drain pipe 83 discharging water are the same, thereby completing the replacement of the water quality without affecting the survival of the organisms inside the breeding area 11.

[0038] In some embodiments, when the water quality sensor 84 detects that the water quality meets the standard, the pipes inside the inlet electric tee 3 and the outlet electric tee 4 are switched again, and at the same time the electric ball valve installed at the front end of the water inlet pipe 86 stops water replenishment, so that the breeding area 11 uses the heating and heat exchange system again.

[0039] Please refer to Figure 3 As shown in the figure, the bottom of the breeding area 11 is inverted conical, and a sewage outlet is arranged at the center of the bottom of the breeding area 11. In the process of the above implementation, the bottom structure of the breeding area 11 can make the excrement of the breeding organisms inside the breeding area 11 finally fall to the bottom of the breeding area 11, and the inverted conical structure design can make the excrement better discharged from the inside of the breeding area 11.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and a particular orientation and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The above detailed description has shown, by way of example, an embodiment of the application. It is specifically contemplated that the application is not limited to the embodiments described herein, but rather the scope of the application is defined by the claims.

Claims

1. A thermal cycle type aquaculture pond electric heating device, comprising an aquaculture pond (1), a heat exchange assembly (5) and a water exchange assembly (8), characterized in that: The culture pond (1) is composed of a culture area (11) and a heating and heat exchange area (12), a partition (13) is arranged between the culture area (11) and the heating and heat exchange area (12), a plurality of groups of through holes are uniformly arranged at the upper end of the partition (13), a heating frame (6) is installed at the upper end of the heating and heat exchange area (12), an electric heating rod (7) with a heating end located in the heating and heat exchange area (12) is installed on the heating frame (6), a heat mixing assembly (57) is installed in the heating and heat exchange area (12), a frequency conversion water pump (2) is installed at one end of the culture pond (1), an inlet electric tee (3) and an outlet electric tee (4) are respectively connected to the inlet and outlet of the frequency conversion water pump (2), a water inlet pipe (51) and a main sewage pipe (81) are respectively connected to the other two ends of the inlet electric tee (3), and a water outlet pipe (53) and a drainage pipe (83) are respectively connected to the other two ends of the outlet electric tee (4); The heat exchange assembly (5) comprises a water inlet pipe (51), a water outlet pipe (53), a heat mixing assembly (57) and a temperature sensor (58), the other end of the water inlet pipe (51) is located in the heating and heat exchange area (12), a Y-shaped filter (52) is installed at one end of the water inlet pipe (51) close to the heating and heat exchange area (12), the other end of the water outlet pipe (53) is connected with a four-way pipe (54) through bolts, the upper and lower ends of the four-way pipe (54) are respectively welded with a connecting short pipe (55), the two ends of the connecting short pipe (55) are bolted with a water injection pipe (56), the water injection pipe (56) penetrates through the heating and heat exchange area (12) and is located in the culture area (11), a row of drainage holes is uniformly arranged on one side of the water injection pipe (56) located in the culture area (11), and the temperature sensor (58) is installed on the side of the culture area (11) side by side; The frequency conversion water pump (2), the inlet electric tee (3), the outlet electric tee (4), the temperature sensor (58) and the electric heating rod (7) are electrically connected to constitute a heating and heat exchange system, the temperature sensor (58) is provided with three groups, and the temperature sensor (58) is located between two groups of water injection pipes (56). The mixed heat assembly (57) comprises a main transmission shaft (571) and a secondary transmission shaft (576), one end of the four-way pipe (54) away from the water outlet pipe (53) is welded with a first bearing (573), one end of the main transmission shaft (571) is installed with a main blade (572), the main blade (572) is located between the four-way pipe (54) and the water outlet pipe (53), the other end of the main transmission shaft (571) penetrates through the first bearing (573) and the breeding pond (1) located in the inside of the heating and heat exchange area (12), the inside wall of the partition (13) of the heating and heat exchange area (12) is installed with a second bearing (574), the other end of the main transmission shaft (571) is installed in the inside of the second bearing (574), the main transmission shaft (571) located in the inside of the heating and heat exchange area (12) is installed with a main bevel gear (575), the two sides of the main bevel gear (575) are meshed and connected with a secondary bevel gear (578), one end of the secondary transmission shaft (576) is installed with a secondary bevel gear (578), the secondary transmission shaft (576) is installed with a secondary blade (577), the inside wall of the heating and heat exchange area (12) is fixed with a third bearing (579), the other end of the secondary transmission shaft (576) is installed in the inside of the third bearing (579); The four-way pipe (54) is welded by a group of four-ways and a ring cover, the outside of the ring cover is provided with a flange, the inside of the ring cover is installed with a main blade (572), the maximum diameter of the main blade (572) is smaller than the inner diameter size of the ring cover, the center shaft of the main blade (572) and the center shaft of the ring cover coincide, the two ends of the water outlet pipe (53) are welded with flanges respectively, the four-way pipe (54) and the water outlet pipe (53) are connected by bolts.

2. The electric heating device for a thermal cycled aquaculture pond according to claim 1, characterized in that: The secondary transmission shaft (576) and the secondary blade (577) constitute a sliding structure, the secondary blade (577) is located between four groups of the electric heating rods (7).

3. The electric heating device for a thermal cycled fish farming tank according to claim 2, characterized in that: The bottom of the breeding area (11) is inverted cone-shaped, a pollution discharge port is arranged at the bottom center position of the breeding area (11).

4. The electric heating device for a thermal cycled fish farming tank according to claim 3, characterized in that: The water exchange assembly (8) comprises a main pollution discharge pipe (81) and a drain pipe (83), the other end of the main pollution discharge pipe (81) is located in the inside of the breeding area (11), the main pollution discharge pipe (81) is installed with a branch secondary pollution discharge pipe (82), the other end of the secondary pollution discharge pipe (82) is located at the pollution discharge port arranged at the bottom of the breeding area (11), the side of the breeding area (11) is provided with a water quality sensor (84) and a liquid level sensor (85) at the upper and lower ends respectively, the side of the heating and heat exchange area (12) is installed with a water feeding pipe (86), the front end of the water feeding pipe (86) is installed with an electric ball valve.

5. A heating device for a thermal cycled raceway according to claim 4, characterized in that: The diameter of the main pollution discharge pipe (81) is larger than the diameter of the secondary pollution discharge pipe (82), the water feeding pipe (86) is higher than the height of the through hole of the lowest position arranged on the partition (13), the height of the liquid level sensor (85) is the same as the height of the through hole of the lowest position arranged on the partition (13).

6. A heating device for a thermal cycled raceway according to claim 5, characterized in that: The variable frequency water pump (2), the import electric tee (3), the export electric tee (4), the water quality sensor (84) and the liquid level sensor (85) are connected by electric signal and constitute an automatic blowdown and water replenishing system.

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