KR200455588Y1 - Water temperature controller for fish farm heat pump - Google Patents

Water temperature controller for fish farm heat pump Download PDF

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Publication number
KR200455588Y1
KR200455588Y1 KR2020110004300U KR20110004300U KR200455588Y1 KR 200455588 Y1 KR200455588 Y1 KR 200455588Y1 KR 2020110004300 U KR2020110004300 U KR 2020110004300U KR 20110004300 U KR20110004300 U KR 20110004300U KR 200455588 Y1 KR200455588 Y1 KR 200455588Y1
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South Korea
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sampling
live fish
water
fish
tank
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KR2020110004300U
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Korean (ko)
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공경석
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공경석
주식회사 대일
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/06Arrangements for heating or lighting in, or attached to, receptacles for live fish
    • A01K63/065Heating or cooling devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/02Heat pumps of the compression type
    • Y02B30/123

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The present invention relates to a water temperature control device installed in a heat pump heat exchanger used to heat or cool the temperature of live fish water supplied to a fish tank for control of a compressor of a heat pump device. A small amount of sample is extracted from the live fish water discharge pipe discharged to the tank side through the heat exchanger and stored in the sampling tank for a predetermined time, while the live fish stored in the sampling tank is recovered to the discharge pipe in proportion to its inflow, and extracted from the discharge pipe. The mixed live fish and the live fish stored in the sampling tank at a predetermined ratio so that the temperature of the mixed live fish can be measured by the compressor control water temperature sensor or by measuring the temperature of the live fish stored in the sampling tank by the compressor control water temperature sensor. Compressor by installing sensor on live fish discharge pipe Unlike the conventional case of controlling the temperature, the temperature of the live fish in the sampling tank can be used for more precise and accurate temperature control, and the cycle cycle of the compressor is maintained smoothly to prevent the compressor from malfunctioning or malfunctioning. This reduces the temperature deviation of the live fish water supplied to the fish tank, and keeps the temperature of the live fish stored in the fish tank within a stable range. The present invention relates to a water temperature control device for fish farm heat pumps that prevents mortality and can safely be applied to the farming of young fry.
To this end, the present invention is installed in a heat exchanger (10) used to heat or cool live fish for fish farms in association with the heat pump device (1), and is discharged to the fish tank for fish farms through the heat exchanger (10). In the water temperature control device which measures the temperature of the live fish water and controls the compressor 2 of the heat pump device 1, the water temperature control device 20 passes through the heat exchanger 10 to the fish tank side. Sampling line 21 branching from the discharge pipe (8) for supplying the water, sampling tank 22 for storing the live fish water flowing through the sampling line 21, and extending from the sampling tank 22 and discharge pipe ( And a recovery line 23 installed in connection with 8), while the discharge line 24 is further extended from the sampling tank 22, the discharge line 24 is connected to the sampling line 21. Connected to form a single confluence line (26), The water condensation line 26 extends toward the sampling tank 22 and is connected to the sampling tank 22 again, and the condensation line 26 is provided with a sampling pump 25 and passes through the sampling pump 25. The water temperature sensor 9a for controlling the compressor 2 is installed at an alternative position among the confluence line 26 or the sampling tank 22 corresponding to the position.

Description

Device for controlling water temperature of heat-pump for a fish-farm}

The present invention relates to a water temperature control device of a heat pump heat exchanger used to heat or cool the temperature of live fish water supplied to a fish tank for a fish farm, and a small amount of sample from the live fish water discharge pipe discharged to the tank side through a heat exchanger. While extracting and storing them in the sampling tank, while the live fish stored in the sampling tank is recovered to the discharge pipe in proportion to its inflow, the live fish extracted from the discharge pipe and the live fish stored in the sampling tank are mixed at a predetermined ratio. Unlike the conventional case of controlling the compressor by installing a sensor in the live water discharge pipe by measuring the temperature of the mixed live fish or by measuring the temperature of the live fish stored in the sampling tank to control the compressor of the heat pump device, By using the temperature of the live fish, which is leveled in the sampling tank, The present invention relates to a water temperature control apparatus for fish farm heat pumps that allows accurate temperature control and at the same time maintains the cycle cycle of the compressor gently to prevent failure or malfunction of the compressor.

In general, fish farms that farm various kinds of fish raise the temperature of the live fish in the winter season and send it to the culture tank, while in the summer, the live fish is cooled and sent to the culture tank, whereby the temperature of the live fish stored in the culture tank is stored. It is necessary to maintain the level suitable for the farming. Especially, the freshly hatched young fry is very sensitive to the water temperature, so precise water temperature management of ± 0.1 ℃ is required. However, heat pump devices having excellent energy saving effect using air heat sources are widely used.

Various types of heat pump devices used in fish farms and the like as described above are known, but as the most representative example, as shown in FIG. 1A, the compressor 2, the condensation heat exchanger 4, the expansion valve 5a, and the evaporation heat exchanger 5 are illustrated. By connecting to the refrigerant pipe (3), the live fish water is heated in the condensation heat exchanger (4) during the winter, the live fish water is cooled in the evaporation heat exchanger (5) in the summer.

In FIG. 1A, only the core components of the heat pump apparatus 1 required for heating and cooling live fish are shown. A pipe structure for introducing live fish into the condensation heat exchanger 4 and the evaporation heat exchanger 5, winter and summer Means for supplying waste heat to the evaporative heat exchanger (5) to secure the evaporative heat source of the refrigerant during the winter, to provide live fish water from the condensation heat exchanger (4) and the evaporative heat exchanger (5) to the aquaculture tank. It is to be noted that the switch valve for selectively supplying live fish to the culture tank is omitted.

In addition, the condensation heat exchanger (4) to recover the heat of the refrigerant gas to heat the live fish water, while in the evaporation heat exchanger (5) there is a difference in cooling the live fish water in the process of depriving the heat required for evaporation of the refrigerant liquid Since the heat exchanger itself has a very similar structure for allowing the live fish to heat exchange with the refrigerant, in order to facilitate the understanding of the present invention, the condensation heat exchanger 4 and the evaporation heat exchanger 5 will be described later. It will be described by integrating into the heat pump heat exchanger 10 without distinction.

As another example of the fish farm heat pump device 1, as shown in FIG. 1B, the compressor 2, the queue exchanger 10a, the expansion valve 5a, and the heat pump heat exchanger 10 are connected to the refrigerant pipe 3. By connecting the four-way valve 17 so that the refrigerant gas discharged from the compressor (2) can be alternatively supplied to the heat pump heat exchanger (10) or the queue exchanger (10a) side, the heat pump heat exchanger in winter (10) is to be a seawater heater (refrigerant condenser), the heat pump heat exchanger (10) is to be a seawater cooler (cooling evaporator) in the summer.

Therefore, in the winter, the queue exchanger 10a serves as a refrigerant evaporator, and in the summer, the queue exchanger 10a serves as a refrigerant condenser. Only the core components of the required heat pump apparatus 1 are shown, and the pipe structure inflowing the live fish water into the heat pump heat exchanger 10, the queue exchanger by the blower fan 18 to secure the evaporation heat source of the refrigerant in the winter. Means for supplying waste heat or hot air to (10a) are omitted.

As described above, the heat pump heat exchanger 10 installed in the fish farm heat pump device 1 and used to heat or cool the live fish water supplied to the aquaculture tank is heat exchange forming an outer shell. One side of the tank 11 is connected to the inlet pipe (7) and the discharge pipe (8) of the live fish water, the inside of the heat exchange tank 11 is installed in a zigzag flow pipe of the live fish water heat exchange tube (12) And a refrigerant inlet port 13 and a refrigerant discharge port 14 to which the refrigerant pipe 3 is connected to the outside of the heat exchange tank 11, respectively, and the heat exchange tube 12 has an outer surface thereof. The fin may be a fin tube attached at close intervals to the heating fins.

As the temperature control means for maintaining the temperature of the live fish water supplied to the tank side through the heat pump heat exchanger 10 as described above to a level suitable for the growth of cultured fish, the discharge pipe (8) of the heat pump heat exchanger (10) A water temperature sensor 9 is installed on the side, and the water temperature sensor 9 measures the discharge temperature of the live fish water to control the compressor 2 of the heat pump device 1 in an on / off manner. Done.

For example, assuming that 10 ° C. of live fish water supplied to the inlet pipe 7 of the heat pump heat exchanger 10 is heated to 20 ° C., the discharge pipe 8 is discharged to the discharge pipe 8 of the heat pump heat exchanger 10. When the temperature of the live fish water exceeds 20 ° C., the water temperature sensor 9 stops the operation of the compressor 2 while the live fish water is discharged to the discharge pipe 8 of the heat pump heat exchanger 10. When the temperature is lowered below 20 ℃, the water temperature sensor 9 is to restart the compressor (ON).

However, as described above, the water temperature sensor 9 is installed on the discharge pipe 8 side of the heat pump heat exchanger 10 to simply turn on / off the compressor 2 of the heat pump device 1. In this case, since the amount of refrigerant discharged from the compressor 2 changes rapidly from the on / off time point, the temperature of the live fish water supplied to the fish tank for the fish farm through the heat pump heat exchanger 10 is precisely controlled. As a result, there is a problem that the temperature deviation of the live fish stored in the tank becomes very large, and thus the on / off control method is hardly applied in recent years.

As a countermeasure for the on / off method as described above, an inverter-controlled compressor or a hot gas bypass system may be used in which the amount of refrigerant gas discharged from the compressor 2 is varied to adjust the temperature of the live fish water. A multi-method in which a combination of methods is used may be used, and an expensive screw compressor for controlling the discharge capacity of the compressor 2 itself may be used.

However, even when the discharge capacity of the refrigerant is variably controlled using the inverter-controlled or screw-type compressor as described above, a certain time difference occurs between the flow of the refrigerant and heat transfer with the live fish water due to the structure of the heat pump heat exchanger 10. Therefore, compared with the general on / off method was able to reduce the temperature deviation due to the water temperature to some extent, it was difficult to control and manage the temperature of the live fish more precisely within the ± 0.1 ℃ range.

In other words, assuming that 10 ° C. of live fish water supplied to the inlet pipe 7 of the heat pump heat exchanger 10 is heated to 20 ° C., the live fish water is heated in the heat pump heat exchanger 10 to discharge the discharge pipe (8). When the freshwater temperature on the side reaches 20.0 ° C, the water temperature sensor 9 detects this and reduces the amount of refrigerant discharged from the compressor 2, but is already rising due to the high temperature refrigerant gas present in the heat exchange tank 11. The temperature of the live fish is continuously raised to a certain level.

As described above, the width at which the temperature of the live fish water rises is rapidly changed to the same level as the actual heating width of the live fish water by the refrigerant gas (hot gas) without any buffer means, so that the temperature rise width measured by the water temperature sensor 9 is increased. In addition, the water temperature sensor 9 quickly and rapidly reduces the amount of refrigerant discharged from the compressor 2 in the steps of 1 → 2 → 3 → 4 → 5 ... in proportion to the temperature rise.

Therefore, although hot live water flows out through the discharge pipe 8 of the heat pump heat exchanger 10, the amount of refrigerant discharged rapidly decreases in one side of the heat pump heat exchanger 10 corresponding to the inflow pipe 7 side. The water temperature of the live fish begins to drop at a rapid rate, and as a result, all of the hot live fish inside the heat pump heat exchanger 10 is immediately discharged.

Although the water temperature sensor 9 installed in the discharge pipe 8 detects the sudden drop in the fresh water of the live water, the amount of refrigerant discharged from the compressor 2 is rapidly increased, but the time and hot gas at which the required level of hot gas is formed. Due to the time required for the heat exchange between the live fish and the live fish, the live fish water cooled below the reference value is continuously discharged along the discharge pipe 8, and in addition, due to the rapidly increased amount of refrigerant discharged on the other side of the heat pump heat exchanger 10. Live fish water temperature rises rapidly.

As a result, as soon as all of the cold live fish in the heat pump heat exchanger 10 exits, the fresh fish of high temperature is continuously discharged, so that the water temperature sensor 9 of the discharge pipe 8 detects the amount of refrigerant discharged from the compressor 2. Again and again, this process is rapidly and rapidly reduced, and as the process is repeated periodically, the temperature fluctuation of the live fish becomes large, as well as the failure of various equipment including the compressor (2) due to the change of the refrigeration cycle that varies greatly in a very short cycle. Or malfunctions frequently occur.

As described above, even if the discharge capacity of the refrigerant is variablely controlled by using an inverter controlled or screw compressor, the temperature of the live fish stored in the fish tank is changed significantly by time, which is the fish farmed in the tank. By giving a lot of stress to the immunity to lower the immune system, the fish will be affected by various diseases, and in severe cases will cause serious problems leading to the death of farmed fish.

In particular, young fry, which are sensitive to changes in water temperature of 0.1 ℃, not only have a weak immunity due to the rapidly changing water temperature, but also hatcheries are usually installed on the land adjacent to the seashore, which draws seawater due to differences in low water. The amount of live fish is often changed according to the pump lift, and the temperature of the seawater also varies greatly depending on the day and night. Therefore, more precise temperature control is required for the safe farming of the fry. There was a problem that it was very difficult to breed the fry safely.

The present invention was devised to solve the above-mentioned conventional problems, the water temperature control device of the heat pump heat exchanger for fish farm according to the present invention, by extracting a small amount of samples from the live fish water discharge pipe discharged to the tank side through the heat exchanger While this is stored in the sampling tank for a certain time, while the live fish stored in the sampling tank is recovered to the discharge pipe in proportion to its inflow, the live fish extracted from the discharge pipe and the live fish stored in the sampling tank are mixed at a predetermined ratio. By measuring the temperature of the mixed live fish water by the water temperature sensor for compressor control or by measuring the temperature of the live fish water stored in the sampling tank by the water temperature sensor for compressor control, the compressor is installed in the live water discharge pipe to control the compressor. Unlike this, the temperature of the live fish is leveled in the sampling tank. This enables more precise and accurate temperature control, while keeping the cycle cycle of the compressor gentle to prevent compressor failure or malfunction, thereby minimizing the temperature deviation of the live fish supplied to the fish tank. By keeping the temperature of the live fish stored in the tank within a stable range, it prevents stress and disease and death of farmed fish in advance, and it is also safely applied to the culture of young fry, which is very difficult to manage. It is the technical task to make it possible.

As a means for solving the above technical problem, the water temperature regulating device according to the first embodiment of the present invention, the sampling line branched from the discharge pipe for supplying live fish water to the fish tank tank side through the heat pump heat exchanger, and the sampling line It includes a sampling tank for storing the live fish water introduced through, and a recovery line extending from the sampling tank connected to the discharge pipe, the discharge line is further extended from the sampling tank, the discharge line is It is connected to the sampling line to form a single water line, and the water line is extended to the sampling tank side and is connected to the sampling tank again. The water pump is installed in the water line and the water pump corresponding to the position past the sampling pump. For the control of the compressor in the alternative location of the line or sampling tank On characterized in that the sensor is installed, the valve the sampling line and the discharge line and is characterized in that the valve is respectively provided, it is characterized in that the flow control valve.

In addition, the water temperature control device according to the second and third embodiments of the present invention, as in the first embodiment, the sampling line branched from the discharge pipe for supplying live fish water to the fish tank tank side through the heat pump heat exchanger, Based on the sampling tank for storing the live fish water introduced through the sampling line and the recovery line extending from the sampling tank and connected to the discharge pipe, the sampling pump is installed in the sampling line or the sampling line and the recovery line Compressor is controlled by forming a shaft tube with a reduced diameter in the discharge pipe, which allows the live fish to flow directly from the sampling line to the sampling tank, and measures the leveled temperature of the live fish using the water temperature sensor installed in the sampling tank. It is characterized by all.

According to the present invention as described above, while the discharge capacity of the compressor is gradually changed in the inverter control type, hot gas bypass method or screw method, the upper and lower limits of the live fish water temperature stored in the culture tank, that is, the temperature deviation of the live fish water By being able to greatly reduce, it is possible to more precisely and precisely control the temperature of the live fish stored in the culture tank while preventing the compressor failure or malfunction.

As described above, the temperature deviation of the live fish stored in the fish farm is reduced to the maximum, and the temperature of the live fish is precisely and precisely controlled so that the temperature of the live fish stored in the fish farm is continuously maintained within a stable range. As can be, there is an effect to prevent disease and mortality of farmed fish due to stress caused by temperature deviation and a decrease in immunity caused by the temperature deviation in the fish tank.

Particularly, even when the quantity of live fish fluctuates frequently depending on the lift of the pump that draws seawater due to the difference in the water tide, or the temperature of seawater fluctuates greatly depending on the day and night, it is a miniature that reduces the environment of aquaculture tank as it is. Using the sampling tank as a model, it is effective to finely adjust the temperature of the live fish stored in the culture tank within the practical optimum range, which makes it possible to safely perform the farming of the fry which is weak in immunity and very difficult to manage. have.

Figure 1a and 1b is a schematic use state of the fish farm heat pump device.
Figure 2 is an installation state of the heat pump heat exchanger.
3 is a piping diagram showing a state in which a water temperature control device according to a first embodiment of the present invention is installed in a heat pump heat exchanger.
4 is a piping diagram showing a state in which a water temperature control device according to a second embodiment of the present invention is installed in a heat pump heat exchanger.
5 is a piping diagram showing a state in which a water temperature control device according to a third embodiment of the present invention is installed in a heat pump heat exchanger.
Figure 6 (a) and (b) is an illustration of a state in which the water temperature control device of the present invention is installed in a double tube heat exchanger.
7 is an exemplary view of a state in which the water temperature control device of the present invention is installed in a plate heat exchanger.
8 is a pulse graph compared to the conventional case of the live fish water temperature control state of the cultured water tank by the water temperature control device of the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention for achieving the above object will be described in detail.

The water temperature control device according to the present invention is also installed in the heat pump heat exchanger 10 used to heat or cool the live fish for fish farms in association with the heat pump device 1 as described in the related art. By measuring the temperature of the live fish water discharged through the heat pump heat exchanger (10) to the fish tank, the compressor 2 of the heat pump device (1) performs a function.

As shown in FIG. 3, the water temperature control device 20 according to the first embodiment of the present invention has a sampling branched from a discharge pipe 8 for supplying live fish water to a fish tank side through a heat pump heat exchanger 10. Line 21, sampling tank 22 for storing the live fish water flowing through the sampling line 21, and recovery line extending from the upper end side of the sampling tank 22 and connected to the discharge pipe (8) It is made including (23).

In addition, while the discharge line 24 is further extended from the lower side of the sampling tank 22, the discharge line 24 is installed in connection with the sampling line 21 to form a single mixing line 26 In addition, the confluence line 26 extends toward the sampling tank 22 and is connected to the upper side of the sampling tank 22 again, and the confluence line 26 is provided with a sampling pump 25 and the sampling pump ( The water temperature sensor 9a is installed in the confluence line 26 corresponding to the position past 25).

The sampling line 21 is a small diameter pipe that can extract about 0.01% of the live fish water discharged at several tens of tons per hour through the discharge pipe 8 of the heat pump heat exchanger 10, and the recovery line 23 ) Performs a function to automatically recover the amount of live fish water flowing into the sampling tank 22 through the sampling line 21 to the discharge pipe 8, so that a pipe having a diameter equal to or similar to that of the sampling line 21 is obtained. The sampling tank 22 is a small container having a storage capacity of about 1/1000 to 1/10000 compared to the culture tank.

In addition, the ratio of the live fish water introduced from the discharge pipe 8 along the sampling line 21 and the live fish water discharged from the sampling tank 22 along the discharge line 24 in the confluence line 26 is rational. Although it is preferable to set it as about 1: 3 for water temperature measurement, a different mixing ratio may be applied in consideration of the quantity of live fish discharged through the discharge pipe 8 and the amount of live fish stored in the culture tank, and the sampling It is preferable that the pump 25 uses a small motor pump.

As described above, the live fish water introduced from the discharge pipe 8 along the sampling line 21 and the live fish water discharged from the sampling tank 22 along the discharge line 24 are mixed through one mixing line 26. Next, since the temperature of the mixed live fish is measured by the water temperature sensor 9a installed in the water inlet line 26, the pipe dimensions of the sampling line 21 and the discharge line 24 and the water inlet line 26 (piping) Diameter) is preferably a dimension proportional to the amount of live fish flowing through the pipe based on the required mixing ratio of live fish.

By adjusting the diameters of the sampling line 21, the discharge line 24 and the water mixing line 26 as described above, the mixing between the live fish water introduced from the discharge pipe 8 and the live fish water discharged from the sampling tank 22 Although the ratio may be determined, in this case, the mixing ratio between live fish is always kept at a fixed ratio, and it is impossible to adjust the mixing ratio between live fish numbers whenever necessary.

Therefore, regardless of the diameter of the sampling line 21, the discharge line 24 and the water mixing line 26, the mixing ratio between the live fish water introduced from the discharge pipe 8 and the live fish water discharged from the sampling tank 22 In order to more easily and accurately adjust, it is most preferable to install the flow rate control valve 27 in the sampling line 21 and the discharge line 24.

On the other hand, if the water temperature sensor (9a) can control the compressor (2) of the heat pump device 1 by measuring the temperature of the live fish water flowing through the sampling pump 25 to the mixing line 26 Although it may be used, it is most preferable to use a very small, high-sensitivity sensor product in consideration of being installed in the confluence line 26, the diameter of which is relatively small, a representative example is the applicant filed in 2003 Patent Application No. 96305 For example, a water temperature measuring sensor patented as No. 10-464069.

However, in order to easily apply the conventional water temperature sensor 9a, the diameter of the part of the confluence line 26 in which the water temperature sensor 9a is installed may be locally enlarged, and the water temperature sensor 9a may be integrated. Of course, it may be installed inside the upper end side of the sampling tank 22 to which the water supply line 26 is connected without being installed in the line 26.

In addition, the sampling line 21, the recovery line 23, and the discharge line 24 and the condensation line 26 is preferably made of stainless steel piping that can be applied irrespective of fresh water or sea water. The plastic tube may be used, and the sampling tank 22 may also be a stainless container or a plastic container.

When the compressor 2 of the heat pump device 1 is controlled by using the water temperature control device 20 of the present invention as described above, the water temperature sensor 9 in the discharge pipe 8 of the heat pump heat exchanger 10. It is possible to minimize the temperature deviation of the live fish stored in the culture tank by controlling the temperature of the live fish more precisely and more precisely than in the case of the installation.

In other words, instead of directly measuring the rapidly changing temperature of the live fish water discharged along the discharge pipe 8 of the heat pump heat exchanger 10 to control the refrigerant discharge amount of the compressor 2, a very small amount from the discharge pipe 8 After extracting the live fish from the sample and storing and leveling it in the sampling tank 22 for a predetermined time, and then mixing the live fish water extracted from the discharge pipe 8 and the live fish stored in the sampling tank 22 in an appropriate ratio, The refrigerant discharge amount of the compressor 2 is controlled to be controlled based on the water temperature of the buffered temperature range.

For example, assuming that 10 ° C. of live fish water supplied to the inlet pipe 7 of the heat pump heat exchanger 10 is heated to 20 ° C., the water mixing line 26 of the water temperature control device 20 according to the present invention is provided. When the temperature of the live fish water measured from the water temperature sensor 9a installed in the above) is 20 ° C. or more, the water temperature sensor 9a controls the compressor 2 to reduce the amount of refrigerant discharge, but even in this case, the heat exchange tank 11 Due to the high temperature refrigerant gas present in the temperature of the live fish water discharged along the discharge pipe (8) is raised to a certain level.

However, according to the water temperature control apparatus 20 of the present invention, rather than directly measuring the rapidly changing temperature of the live fish water discharged along the discharge pipe 8, sampling line of a part of the live fish water discharged along the discharge pipe 8 While extracting (21), the live fish stored in the leveling state inside the sampling tank 22 is discharged to the discharge line 24, each of the live fish water at a ratio of about 1: 3 to the consolidation line (26) After mixing in the), the live fish water temperature of the mixed state is measured by the water temperature sensor 9a to control the compressor 2.

In this case, the temperature of the live fish stored in the sampling tank 22 by the circulation path of the live fish is lower than the actual temperature of the live fish discharged along the discharge pipe 8, but the sampling line 21 and the recovery line 23 The continuous circulation of the live fish water through) keeps the temperature close to the live fish water discharged from the discharge pipe 8 without causing much temperature difference.

Therefore, when the live fish extracted from the sampling line 21 and the live fish stored in the sampling tank 22 are mixed at a ratio of about 1: 3, the live tube water is mixed by the sampling tank 22. The actual temperature rise of the freshwater extracted from the water causes a buffering effect that is reduced and slowed down. For example, if the temperature rise of the livewater in the discharge pipe 8 is about 1 ° C., the water temperature sensor of the water line 26 ( The temperature rise measured in 9a) is buffered at a level of 0.1 to 0.2 ° C.

Due to the buffering effect as described above, the temperature rise of the live fish water detected by the water temperature sensor 9a of the confluence line 26 is gradually increased with a relatively long time difference, and thus the sudden change of the live fish water by the refrigerant gas (hot gas) Compared to the conventional case in which the temperature rise is measured directly in the discharge pipe 8 without any buffer means, the water temperature sensor 9a sets the refrigerant discharge amount of the compressor 2 within a stable range of 1 → 2. It is possible to reduce in a gradual and smooth manner.

Therefore, despite the fact that hot water comes out of the discharge pipe 8 as in the conventional case, the temperature of the live fish water is rapidly lowered on one side of the heat pump heat exchanger 10, and thus, the cold live fish water and As the sequential discharge does not occur and the amount of the refrigerant flowing into the heat pump heat exchanger 10 is gradually decreased with a relatively long time difference, the temperature of the live fish water discharged from the discharge pipe 8 corresponds to the reference value. It will gradually fall towards the temperature.

As described above, the water temperature sensor 9a gradually reduces the amount of refrigerant discharged from the compressor 2 to gradually reduce the temperature of the live fish water discharged from the heat pump heat exchanger 10, and then installs the water temperature sensor installed in the water inlet line 26. When the temperature of the live fish water measured from 9a falls below 20 ° C, the water temperature sensor 9a controls the compressor 2 to increase the amount of refrigerant discharged.

In this case, the temperature of the live fish stored in the sampling tank 22 by the circulation of the live fish is higher than the actual temperature of the live fish discharged along the discharge pipe 8, but the sampling line 21 and the recovery line 23 The continuous circulation of the live fish water through) keeps the temperature close to the live fish water discharged from the discharge pipe 8 without causing much temperature difference.

Therefore, when the live fish extracted from the sampling line 21 and the live fish stored in the sampling tank 22 are mixed at a ratio of about 1: 3, the live tube water is mixed by the sampling tank 22. Substantial drop in the temperature of the freshwater extracted from the fish will cause a buffering effect is reduced and slowed.

Due to the buffering effect as described above, the temperature drop of the live fish water detected by the water temperature sensor 9a of the water line 26 is gradually reduced with a relatively long time difference, so that the sudden change in the temperature drop of the live fish water is separate. Compared with the conventional case measured directly in the discharge pipe 8 without the buffer means, the water temperature sensor 9a increases the refrigerant discharge amount of the compressor 2 in a gradual and smooth manner within a stable range.

Therefore, despite the fact that the cold water is discharged into the discharge pipe 8 as in the conventional case, the temperature of the live fish water rises at a high speed in one side of the heat pump heat exchanger 10, and the live fish water warmed by the cold live fish water and As the sequential discharge does not occur and the amount of refrigerant flowing into the heat pump heat exchanger 10 gradually increases with a relatively long time difference, the temperature of the live fish water discharged from the discharge pipe 8 corresponds to the reference value. It gradually rises toward < RTI ID = 0.0 >

When the compressor 2 of the heat pump apparatus 1 is continuously controlled by the water temperature control apparatus 20 of the present invention as described above, the operation of the heat pump apparatus 1 is unstable and a certain temperature deviation is obtained. The temperature deviation of the live fish is also gradually reduced after passing through the initial stage of occurrence, and the stabilization stage of the heat pump apparatus 1, and finally, using the water temperature control apparatus 20 of the present invention, within ± 0.1 ° C. Temperature control of live fish is possible.

In summary, the water temperature of the live fish water discharged through the heat pump heat exchanger 10 varies slightly depending on the water temperature change and the water pressure due to the water pressure, and the flow state of the refrigerant discharged from the compressor 2. When the micro-change is sensed without any buffer function to control the compressor 2, a large temperature deviation as in the conventional case is brought, but the sampling tank 22 as in the present invention is installed to provide a water temperature. By minimizing (canceling) the minute change of the temperature, the fluctuation of the water temperature fluctuation actually sensed by the water temperature sensor 9a and the fluctuation of the refrigerant discharge amount and the live fish water temperature deviation of the compressor 2 controlled based on this can be minimized. .

From another point of view, the sampling tank 22 performs the function of a miniature model that reproduces the environment of the fish farm for the fish farm, which is similar to the real life, and thus the live fish and the sampling tank extracted from the discharge pipe 8. The value obtained by mixing the live fish stored in (22) at a predetermined ratio and measuring and controlling the temperature of the live fish is mixed with the live fish stored in the culture tank along the discharge pipe (8). It also means that it gives results very similar to measuring temperature.

Accordingly, the compressor discharge capacity in the inverter controlled type, hot gas bypass type or screw type is smoothly changed more slowly than in the conventional case, thereby preventing the compressor 2 from failing or malfunctioning. Likewise, the temperature deviation of the live fish stored in the culture tank can be greatly reduced as compared with the conventional case, and the live fish of the sampling tank 22 provides a very similar environment to the live fish stored in the culture tank. By using this, it provides the same result as directly controlling the temperature of live fish stored in the culture tank.

As described above, the temperature deviation of the live fish stored in the fish farm is reduced to the maximum, and the temperature of the live fish is kept within the range of ± 0.1 ° C so that the temperature of the live fish stored in the farm is maintained in a stable range. By precisely and precisely controlling the fish in the aquarium, it is possible to prevent diseases and deaths of the farmed fish due to the stress caused by the temperature deviation and the resulting decrease in immunity.

Particularly, even when the quantity of live fish fluctuates frequently depending on the lift of the pump that draws seawater due to the difference in the water tide, or the temperature of seawater fluctuates greatly depending on the day and night, it is a miniature that reduces the environment of aquaculture tank as it is. Using the sampling tank 22 as a model, the temperature of the live fish stored in the culture tank can be finely adjusted within the optimum range, which makes it possible to safely carry out the farming of the fry which has a weak immunity and is very difficult to manage. It is.

Water temperature control device 20 according to the second and third embodiments of the present invention, as shown in Figures 4 and 5, respectively, through the heat pump heat exchanger 10, the discharge pipe for supplying live fish water to the fish tank side Sampling line 21 branching from (8), sampling tank 22 for storing the live fish water introduced through the sampling line 21, and extending from the sampling tank 22 and connected to the discharge pipe (8) The basic configuration including the recovery line 23 to be installed is the same as in the first embodiment.

The only difference is that the live fish sample extracted from the discharge pipe 8 through the sampling line 21 is directly introduced into the sampling tank 22, while the amount of live fish is introduced into the sampling tank 22. In the state where the water is recovered back to the discharge pipe 8 via the recovery line 23, the temperature of the live fish stored and leveled in the sampling tank 22 is measured by the water temperature sensor 9a.

In other words, the first embodiment of the present invention is a method of forcibly mixing the live fish water extracted from the discharge pipe 8 and the live fish water stored in the sampling tank 22 at a specific ratio, and the second and third embodiments are discharge pipes. The live fish extracted along the sampling line 21 from (8) is temporarily stored in the sampling tank 22 for leveling, and then is a natural circulation method that is discharged to the discharge pipe 8 through the recovery line 23. .

To this end, in the second embodiment of the present invention, the sampling pump 25 is installed in the sampling line 21, while the sampling line 21 is directly connected to the lower end of the sampling tank 22. The water temperature sensor 9a is installed through the wall of one side (right side in the drawing) of the sampling tank 22, and the position where the water temperature sensor 9a is installed is faced diagonally with the portion to which the sampling line 21 is connected. It is preferable to be the upper portion of the sampling tank 22.

In the third embodiment of the present invention, the sampling line 21 is connected to the lower end of the sampling tank 22, while the sampling line 21 is connected to the discharge pipe 8 corresponding to the sampling line 21 and the recovery line 23. By forming the shaft tube portion 8a having a reduced diameter, the small amount of live fish flows into the sampling tank 22 along the sampling line 21 due to the flow resistance generated in the shaft tube portion 8a. In the case of the water temperature sensor 9a, it is installed in such a manner as to penetrate the wall surface of the sampling tank 22 as in the second embodiment.

However, since the sampling line 21 itself may be a pipe having a small diameter, flow resistance may occur, so that the live fish water is extracted through the sampling line 21 only by forming the shaft tube portion 8a in the discharge pipe 8. Since the operation may be difficult, it will be appreciated that the sampling pump 25 may be additionally installed in the sampling line 21 as shown by a dotted line in FIG. 5.

As described above, the water temperature adjusting device 20 according to the second and third embodiments of the present invention is different from the fact that the natural mixing and circulation method of the live fish water for the sample is applied, not the forced mixing method as in the first embodiment. The water temperature sensor 9a controls the compressor 2 of the heat pump apparatus 1 based on the buffer temperature in which the live fish stored in the sampling tank 22 and the live fish extracted from the discharge pipe 8 are mixed. It can be seen that the basic principle and the resulting effect is almost no difference compared to the first embodiment.

Of course, the method according to the first embodiment in which the live fish extracted from the discharge pipe 8 and the live fish stored in the sampling tank 22 are mixed at a specific ratio is more preferable in terms of controlling the compressor 2 and controlling the temperature of the live fish. Advantageously, in the case of the second and third embodiments, the number of pipes can be minimized, and there is an advantage that the application of the valve mechanism is not required. Therefore, the installation may be performed in a manner necessary for the level required in the field.

Lastly, in FIGS. 1 to 5, an inlet tube 7 and an outlet tube 8 of live fish are connected to one side of the heat exchange tank 11 constituting the outer shell, and the live fish water is provided inside the heat exchange tank 11. The flow piping of the shell provides a heat exchange tube (12), the shell and tube type (Shell & Tube) is provided with a refrigerant inlet port 13 and the refrigerant discharge port 14 is connected to the refrigerant pipe (3) outside the heat exchange tank (11) Tube type) Although a heat exchanger is a representative application example, the water temperature control device 20 of the present invention may be applied to various other heat exchangers.

For example, as shown in (a) and (b) of FIG. 6, the refrigerant inlet port 13 and the refrigerant discharge port 14 are provided outside the heat exchange tube 12 that becomes the flow pipe of the live fish. As shown in FIG. 7, the refrigerant gas and the live fish water flow alternately with the double tube type heat pump heat exchanger 10 provided with the outer tube 15 or a plurality of heat transfer plates 16 therebetween. One plate heat pump heat exchanger 10 is that the water temperature control device 20 of the present invention can be applied.

In conclusion, if the heat pump heat exchanger 10 is used in connection with the heat pump device 1 for heating or cooling live fish water using a refrigerant, the heat pump regardless of the type of the heat pump heat exchanger 10 itself. Means that can be used by connecting the water temperature control device 20 of the present invention to the live fish water discharge pipe (8) of the heat exchanger 10, the description based on Figures 1 to 5 to help understand the present invention It is just one optimal embodiment, and it is to be understood that the scope of the technical spirit of the present invention is not limited to the optimal embodiment.

1: heat pump device 2: compressor 3: refrigerant piping
4 condensation heat exchanger 5 evaporation heat exchanger 5a expansion valve
6: liquid separator 7: inlet tube 8: outlet tube
8a: shaft portion 9,9a: water temperature sensor 10: heat pump heat exchanger
10a: queue exchanger 11: heat exchange tank 12: heat exchange tube
13: refrigerant inlet port 14: refrigerant discharge port 15: outer tube
16: heat transfer plate 17: four-way valve 18: blowing fan
20: water temperature control device 21: sampling line 22: sampling tank
23: recovery line 24: discharge line 25: sampling pump
26: integrating line 27: flow control valve

Claims (5)

Live fish water is installed in the heat pump heat exchanger (10) used in connection with the heat pump device (1) to heat or cool the fish farm live fish, and is discharged to the fish tank side through the heat pump heat exchanger (10) In the water temperature control device for controlling the compressor 2 of the heat pump apparatus 1 by measuring the temperature of
The water temperature control device 20 is introduced through the sampling line 21 and the sampling line 21 branched from the discharge pipe 8 for supplying live fish water to the fish tank side through the heat pump heat exchanger 10. It includes a sampling tank 22 for storing the live fish and a recovery line 23 extending from the sampling tank 22 and connected to the discharge pipe 8,
The discharge line 24 is further extended from the sampling tank 22, while the discharge line 24 is installed in connection with the sampling line 21 to form a single mixing line 26. 26) is extended toward the sampling tank 22 and is connected to the sampling tank 22 again.
Sampling pump 25 is installed in the confluence line 26, and control of the compressor 2 in the condensation line 26 or sampling tank 22 corresponding to the position past the sampling pump 25. Water temperature control device for fish farm heat pump, characterized in that the water temperature sensor (9a) is installed for.
The water temperature control apparatus for fish farm heat pump according to claim 1, wherein the sampling line (21) and the discharge line (24) are provided with a flow control valve (27). Live fish water is installed in the heat pump heat exchanger (10) used in connection with the heat pump device (1) to heat or cool the fish farm live fish, and is discharged to the fish tank side through the heat pump heat exchanger (10) In the water temperature control device for controlling the compressor 2 of the heat pump apparatus 1 by measuring the temperature of
The water temperature control device 20 is introduced through the sampling line 21 and the sampling line 21 branched from the discharge pipe 8 for supplying live fish water to the fish tank side through the heat pump heat exchanger 10. It includes a sampling tank 22 for storing the live fish and a recovery line 23 extending from the sampling tank 22 and connected to the discharge pipe 8,
Sampling pump 25 is installed in the sampling line 21, the water tank temperature control apparatus for fish farm heat pump, characterized in that the sampling tank 22 is provided with a water temperature sensor (9a) for the control of the compressor (2). .
Live fish water is installed in the heat pump heat exchanger (10) used in connection with the heat pump device (1) to heat or cool the fish farm live fish, and is discharged to the fish tank side through the heat pump heat exchanger (10) In the water temperature control device for controlling the compressor 2 of the heat pump apparatus 1 by measuring the temperature of
The water temperature control device 20 is introduced through the sampling line 21 and the sampling line 21 branched from the discharge pipe 8 for supplying live fish water to the fish tank side through the heat pump heat exchanger 10. It includes a sampling tank 22 for storing the live fish and a recovery line 23 extending from the sampling tank 22 and connected to the discharge pipe 8,
A discharge pipe 8 corresponding to the sampling line 21 and the recovery line 23 is formed with a shaft tube portion 8a having a reduced diameter, and the sampling tank 22 controls the compressor 2. Water temperature control device for fish farm heat pump, characterized in that the water temperature sensor (9a) is installed for.
5. The water temperature control apparatus for fish farm heat pump according to claim 4, wherein a sampling pump (25) is installed in the sampling line (21).
KR2020110004300U 2011-05-18 2011-05-18 Water temperature controller for fish farm heat pump KR200455588Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102578028A (en) * 2012-03-01 2012-07-18 姜衍礼 Cold-hot water unit and system of water source heat pump for recovering afterheat of waste water from sea farming and seedling
KR101258564B1 (en) 2012-05-10 2013-05-02 공경석 Washing and heat supplying system of heat-pump exchanger for a fish-farm
CN103636549A (en) * 2013-12-12 2014-03-19 中国水产科学研究院淡水渔业研究中心 Aquaculture pond with oxygen aeration and temperature control functions

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Publication number Priority date Publication date Assignee Title
JP2000166422A (en) 1998-12-02 2000-06-20 Shikoku Electric Power Co Inc System for maintaining temperature of aquarium
KR20010075995A (en) * 2000-01-24 2001-08-11 김진억 Apparatus for circulating constant temperature fluid
JP2008039353A (en) 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd Heat pump type water heater
KR20090122890A (en) * 2008-05-26 2009-12-01 호서대학교 산학협력단 Constant temperature bath

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000166422A (en) 1998-12-02 2000-06-20 Shikoku Electric Power Co Inc System for maintaining temperature of aquarium
KR20010075995A (en) * 2000-01-24 2001-08-11 김진억 Apparatus for circulating constant temperature fluid
JP2008039353A (en) 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd Heat pump type water heater
KR20090122890A (en) * 2008-05-26 2009-12-01 호서대학교 산학협력단 Constant temperature bath

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102578028A (en) * 2012-03-01 2012-07-18 姜衍礼 Cold-hot water unit and system of water source heat pump for recovering afterheat of waste water from sea farming and seedling
KR101258564B1 (en) 2012-05-10 2013-05-02 공경석 Washing and heat supplying system of heat-pump exchanger for a fish-farm
CN103636549A (en) * 2013-12-12 2014-03-19 中国水产科学研究院淡水渔业研究中心 Aquaculture pond with oxygen aeration and temperature control functions

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