TWI651047B - Water temperature conditioning system for aquaculture - Google Patents

Abstract

A water temperature regulation system for aquaculture, comprising a first heat exchanger, a second heat exchanger, a first expansion device, a second expansion device, a compressor, and a third heat exchanger, And forming a refrigerating circuit and a heating circuit; wherein the refrigerating circuit is connected to the compressor, the first heat exchanger and the first expansion device by the third heat exchanger through the first-class switching valve, and then recirculating To the third heat exchanger; the heating circuit is switched from the third heat exchanger to the switching valve through the flow switching valve and sequentially connects the second expansion device, the second heat exchanger and the compressor, and then returns to the third Heat exchanger.

Description

Water temperature regulation system for aquaculture

The invention relates to a culture equipment, in particular to a water temperature regulation system for aquaculture.

According to the fact that because the aquaculture fishery is mostly implemented outdoors, it is necessary to consider the influence of factors such as climate on the fish population. Among them, especially in the cold weather such as winter, it is easy to cause the water temperature to drop rapidly, causing the fish to not adapt to the low water temperature and die. Therefore, in order to avoid the above problems, the use of heat pumps to control the temperature of the fish pond water has become a common technical means for aquaculture.

However, conventionally used heat pumps often only provide the method of heating the pool temperature in consideration of the above problems, but cannot be cooled or warmed in response to changes in the ambient temperature. In particular, the temperature difference between winter and summer is too large, or the temperature difference between day and night, many aquaculture operators in order to control the temperature of the pool in the temperature range where the specific aquatic product is most suitable for growth, often the water temperature is too low and needs heating or water temperature. High and need to cool down, etc., especially for high value-added fish, shrimp or shellfish.

In view of the above, the present inventors have made an effort to improve and solve the above-mentioned shortcomings, and have devoted themselves to research and cooperate with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

The main object of the present invention is to provide a water temperature regulation system for aquaculture, which adopts dual-loop control and has a switchable function of cooling and heating, so as to adjust the water temperature of the pool at any time in response to changes in the ambient temperature. In order to control the water temperature within the temperature range suitable for aquaculture growth.

In order to achieve the above object, the present invention provides a water temperature regulation system for aquaculture, comprising a first heat exchanger, a second heat exchanger, a first expansion device, a second expansion device, and a compression. And a third heat exchanger, and forming a refrigeration circuit and a heating circuit; wherein the refrigeration circuit is connected to the compressor by the third heat exchanger through the first-class switching valve and sequentially, the first heat exchange And the first expansion device, and then back to the third heat exchanger; the heating circuit is controlled by the third heat exchanger to switch the valve position through the flow switching valve and sequentially connect the second expansion device and the second heat exchanger With the compressor, it is recycled back to the third heat exchanger.

<present invention>

1‧‧‧Refrigeration circuit

10‧‧‧First heat exchanger

11‧‧‧First expansion device

12‧‧‧First reservoir

2‧‧‧ heating circuit

20‧‧‧second heat exchanger

21‧‧‧Second expansion device

22‧‧‧Second reservoir

3‧‧‧Compressor

4‧‧‧ third heat exchanger

40‧‧‧Water outlet

400‧‧‧Aerator

41‧‧‧Water supply pipeline

410‧‧‧check valve

411‧‧‧Filter device

5‧‧‧Flow direction switching valve

50‧‧‧First switching valve

51‧‧‧Second switching valve

6 ‧ ‧ pool

7‧‧‧Insulation sink

Figure 1 is a schematic illustration of a refrigeration circuit of the present invention.

2 is a schematic view of a heating circuit of the present invention.

Figure 3 is a schematic illustration of another embodiment of the invention.

4 is a schematic view of still another embodiment of the present invention.

The detailed description of the present invention and the accompanying drawings are to be understood by the accompanying claims .

Please refer to FIG. 1 and FIG. 2 , which are schematic diagrams of a refrigeration circuit and a heating circuit of the present invention, respectively. The invention provides a water temperature regulation system for aquaculture, which is used for cooling or warming the water temperature in a water pool 6, comprising a first heat exchanger 10, a second heat exchanger 20, and a a first expansion device 11, a second expansion device 21, a compressor 3, and a third heat exchanger 4, and constitute a refrigeration circuit 1 and a heating circuit 2; wherein: as shown in Figure 1, A schematic diagram of a refrigeration circuit of the present invention. In the refrigeration state, the refrigeration circuit 1 is configured by the third heat exchanger 4, and the compressor 3 is sequentially connected to the switching valve 5 through the first-stage heat exchanger 4, and the first heat exchanger 10 is sequentially connected. And the first expansion device 11 is followed by a circulation loop formed by the third heat exchanger 4. The compressor 3 can switch the valve position to communicate with the first heat exchanger 10 through a first switching valve 50, and switch the valve position to connect the first expansion device 11 through a second switching valve 51. To the third heat exchanger 4; in the embodiment of the present invention, the first heat exchanger 10 is a heat exchanger for air to refrigerant, and as a condenser, may be a fin-and-tube heat exchanger And connecting a first accumulator 12 between the first heat exchanger 10 and the first expansion device 11, and the third heat exchanger 4 is a water-to-refrigerant heat exchanger, which may be a shell tube A heat exchanger or a plate heat exchanger, and under the refrigeration circuit 1, the third heat exchanger 4 serves as an evaporator.

Furthermore, as shown in FIG. 2, it is a schematic diagram of the heating circuit of the present invention. In the heating state of the present invention, the heating circuit 2 is used, and the heating circuit 2 is switched by the third heat exchanger 4 through the flow switching valve 5 to sequentially switch the valve position and sequentially communicate with the second expansion device 21. The second heat exchanger 20 and the compressor 3 are recycled to the circulation loop formed by the third heat exchanger 4. The third heat exchanger 4 can switch the valve position to communicate with the second expansion device 21 through the second switching valve 51, and switch the valve position to the second heat exchange through the first switching valve 50. The device 20 is connected to the compressor 3; In the embodiment of the present invention, the second heat exchanger 20 is also an air-to-refrigerant heat exchanger, and as an evaporator, may be a fin-tube heat exchanger, and the second expansion device A second accumulator 22 is connected before 21, and the third heat exchanger 4 is used as a condenser under the heating circuit 2.

Therefore, the water temperature regulating system for aquaculture of the present invention can be obtained by the above-described structural composition.

Accordingly, as shown in FIG. 1, when the temperature of the water in the pool 6 is too high and needs to be cooled, the control circuit (not shown) can be switched to the refrigeration circuit 1, and the third heat exchange can be transmitted through the third heat exchange. The device 4 absorbs heat from the pool, and then exotherms the outside air through the first heat exchanger 10, so that the cooled water can be drained back into the pool 6 by a water outlet pipe 40, and the water of the pool 6 is continuously passed through a water inlet pipe. The road 41 is sent to the third heat exchanger 4 for cooling, and the water inlet pipe 41 can be connected to a check valve 410. As shown in FIG. 2, when the water temperature in the pool 6 is too low and needs to be heated, The heating circuit 2 can be switched to the heating circuit 2 through the control switch (not shown). At this time, the second heat exchanger 20 can absorb heat from the outside air, and then pass through the third heat exchanger 4 to the water in the pool 6. The heating is performed so that the warmed water can be discharged back into the pool 6 from the outlet pipe 40, and the water of the pool 6 is continuously conveyed from the inlet pipe 41 to the third heat exchanger 4 for temperature rise. Therefore, the present invention can obtain optimized performance and efficiency under the above-mentioned refrigeration circuit 1 or heating circuit 2, and can adjust the water temperature of the pool at any time in response to changes in the ambient temperature, so as to control the water temperature. Suitable for aquaculture growth temperatures.

In addition, since the change of the water temperature also affects the oxygen content in the water, in order to control the oxygen content in the water, the present invention can connect an aeration device 400 to the water outlet pipe 40 to facilitate the cooling or heating state. Underneath, the oxygen content required in the pool 6 can be maintained. In addition, as shown in FIG. 3, in order to prevent the water in the pool 6 from containing impurities, foreign matter such as algae or small fish from entering the water inlet pipe 41, the present invention may also connect a filtering device 411 to the water inlet pipe 41 for filtering. Foreign objects and avoid blocked pipes.

Furthermore, as shown in FIG. 4, the present invention can further connect a water holding tank 7 to the water outlet pipe 40 of the third heat exchanger 4 and the water inlet pipe 41. The heat insulating water tank 7 can be a water tank or aquaculture. The water tank can first cool or heat the water in the heat preservation tank 7, and then mix with the water in the water tank 6 to a suitable temperature, so that the water temperature can be more easily controlled, and the peak power consumption period can also be utilized. The water in the heat preservation tank 7 is cooled or heated to save electricity costs. Further, a windproof facility such as a warm shed (not shown) may be disposed beside the pool 6, so that the water in the pool 6 can be adjusted to a better temperature, and energy saving can also be achieved.

In summary, the present invention can achieve the intended use purpose, and solve the lack of the conventional, and because of the novelty and progress, fully meet the requirements of the invention patent application, and apply according to the patent law, please check and The patent in this case is granted to protect the rights of the inventor.

However, the above description is only a preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and the equivalent techniques and means, etc., which are used in the description of the present invention and the contents of the drawings, are the same. It is included in the scope of the present invention and is combined with Chen Ming.

Claims (11)

A water temperature regulation system for aquaculture is used for cooling or warming water temperature in a pool; comprising a first heat exchanger, a second heat exchanger, a first expansion device, and a second An expansion device, a compressor, and a third heat exchanger, and constituting a refrigeration circuit and a heating circuit; wherein the refrigeration circuit is connected to the switching valve by the third heat exchanger and sequentially connected to the switching valve The compressor, the first heat exchanger and the first expansion device are further returned to the third heat exchanger to cool the water temperature in the water pool; the heating circuit is subjected to the third heat exchange Passing the flow to the switching valve to switch the valve position and sequentially connecting the second expansion device, the second heat exchanger and the compressor, and then returning to the third heat exchanger to make water temperature in the pool Warm up. The water temperature regulation system for aquaculture according to claim 1, wherein the refrigeration circuit switches the valve position to communicate with the first heat exchanger through a first switching valve. And switching the valve position to connect the first expansion device to the third heat exchanger through a second switching valve; the heating circuit switches the valve position by the third heat exchanger through the second switching valve To communicate with the second expansion device and switch the valve position through the first switching valve to communicate the second heat exchanger to the compressor. The water temperature regulation system for aquaculture according to claim 1 or 2, wherein the first heat exchanger is an air-to-refrigerant heat exchanger and serves as a condenser, and the third heat exchanger It is a water-to-refrigerant heat exchanger and acts as an evaporator. The water temperature regulation system for aquaculture according to claim 1 or 2, wherein the second heat exchanger is an air-to-refrigerant heat exchanger and serves as an evaporator, and the third heat exchanger It is a water-to-refrigerant heat exchanger and acts as a condenser. The water temperature regulating system for aquaculture according to claim 1, wherein the first and second heat exchangers are fin-and-tube heat exchangers. The water temperature regulation system for aquaculture according to claim 1 or 5, wherein the third heat exchanger is a shell and tube heat exchanger or a plate heat exchanger. The water temperature regulation system for aquaculture according to claim 1, wherein the first heat exchanger and the first expansion device are connected to a first reservoir. The water temperature regulating system for aquaculture according to claim 1 or 7, wherein the second expansion device is connected to a second reservoir. The water temperature regulation system for aquaculture according to claim 1, wherein the third heat exchanger has a water outlet pipe, and an aeration device is disposed on the outlet pipe. The water temperature regulating system for aquaculture according to claim 1 or 9, wherein the third heat exchanger has a water inlet pipe, and a filtering device is disposed on the water inlet pipe. The water temperature regulation system for aquaculture according to claim 1, wherein the third heat exchanger has a water outlet pipe and a water inlet pipe, and the water outlet pipe is connected to the water inlet pipe. A heat sink.