KR101403706B1 - Seawater Supply System For Culturing Fish or Shellfish - Google Patents

Abstract

A sea water supply part for drawing seawater to the ground, a pipeline through which sea water supplied from the sea water supply part passes, and a aquaculture water tank 300 for collecting seawater inflowed through the pipeline and located at one side of the pipeline, And a water supply device
The seawater supply unit is connected to the inverter motor and the programmable logic controller to automatically control the rotation of the motor according to the season, temperature difference, and tidal difference, so that the rotation of the motor can be adjusted to the seawater inflow condition , It is possible to achieve an electricity saving effect of 35% on average during the year.

Description

{Seawater Supply System for Culturing Fish or Shellfish}

More particularly, the present invention relates to a high-efficiency inverter and a programmable logic controller (PLC) connected to a motor to detect a difference in season, temperature difference, and tide interval, To a sea water supplying apparatus for seaweed culture.

Natural seawater may have pathogens and pathogens that are a variety of harmful organisms, and these harmful organisms can have a catastrophic effect, especially on cultured fish, which can cause serious social problems due to our eating habits have.

Generally, in the aquaculture farms, various filtration methods are used to remove foreign matter first, and UV or ozone treatment is applied to remove harmful organisms contained in natural seawater.

Fig. 1 is a diagram schematically illustrating a process of performing such a filtration process. In the aquaculture farm, there is a seawater supply section (10) such as a pumping plant for drawing the seawater to the land, and the seawater is supplied to the farm through the seawater supply section (10). The provided seawater is passed through a filtration unit 20 for filtering foreign matters or various suspended matters and then subjected to final treatment in a UV treatment unit or an ozone treatment unit 30 for insecticide and sterilizing harmful organisms contained in the seawater, And is supplied to the aquarium 40.

However, the conventional seawater supply unit 10 used in the seawater supply apparatus for seafood culture is equipped with a pump capable of raising seawater. At this time, the pump is always driven with the same rotational force, The amount of seawater to be raised is greater than the amount of seawater required, and when the sea surface is descending only by the tide of the tide, the amount of seawater is less than that required, so that more rotation force is required than usual. Since it is rotated, it raises the seawater which is 30 ~ 50% lower than the required seawater amount.

In addition, since the activity of fish is increased due to high water temperature in summer, it is necessary to supply more seawater than usual in order to supply sufficient oxygen. In winter, the activity of fish is lowered due to low water temperature. It is possible to supply seawater, but since the motor connected to the pump is always driven at the same RPM, unnecessary power is wasted.

Korean Patent Application Publication No. 10-2007-0068136

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for storing data on low water and high tide and seawater average water temperature by seasons, So that the amount of inflow can be controlled.

In addition, the present invention provides a sensor that can adjust the inflow amount of seawater freely even if an emergency occurs to such an extent as to affect the growth of seafood, due to a difference from the data in which the difference between the actual water temperature measured by the sensor and the tidal water difference is stored And to provide a seawater supply device for seaweed culture.

In order to achieve the above object, according to the present invention, there is provided a method of controlling an air conditioner comprising a seawater supply unit for drawing seawater into the sea, a pipeline through which seawater supplied from the seawater supply unit passes, and seawater flowing through the pipeline, The seawater supply unit is connected to the inverter motor and the programmable logic controller to control the rotation of the motor according to season, temperature difference, and tidal difference. The sea water supply device for a fish culture.

In the above, the seawater supply unit may include a pump that allows the seawater to be drawn up through the piping by using a pressure action, a motor unit connected to the pump to supply power and adjust the inflow amount of the seawater, A control unit for controlling the rotation of the motor unit by generating a control signal in accordance with data generated in the sensor unit and data stored in the DB unit in association with the motor unit and the sensor unit, An input unit for inputting data for generating a control signal in the control unit; and a DB unit for storing monthly data on the difference in the tide interval and the average water temperature inputted from the input unit. Device.

In the above, the motor unit includes an inverter on one side, and receives the alternating current output from the inverter to continuously control the rotation rate of the motor.

The control unit is connected to the programmable logic controller and controls the rotation of the motor by comparing and analyzing the data stored in the DB unit and the measured value in the sensor unit to provide the seawater supply device .

In the above, the DB unit includes a low-temperature and high-temperature data unit measured and measured every year, and a water temperature data unit for measuring an average water temperature of the seawater.

In the above case, the motor rotates at a high speed when the motor unit is low in the low-temperature and low-temperature data units, the motor rotates at a low speed in the high- And the water is supplied to the sea water supply device.

The above and other objects, features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

According to the present invention, the following effects can be achieved by this configuration.

The seawater supply device for seafood culture according to the present invention can set the rotation of the motor as the seawater inflow condition suitable for the seafood type, thereby achieving an electricity saving effect of an average of 35% a year during operation.

In addition, the present invention has an effect of controlling the inflow amount of seawater according to an emergency situation that affects the growth of fish and shellfish such as the temperature drop of the seawater because the sensor is provided.

FIG. 1 schematically shows the configuration of a conventional seawater supply seawater supply apparatus,
2 is a view schematically showing a seawater supply apparatus according to the present invention,
3 is a block diagram of the DB unit of the seawater supply apparatus according to the present invention,
4 is a graph showing the motor speed according to the sea water temperature when the sea water supply device according to the present invention is operated,
5 is a graph showing the motor speed that occurs monthly when the seawater supply device according to the present invention is operated,
6 is a graph showing the motor speed according to the sea water height when the seawater supply apparatus according to the present invention is operated.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

3 is a block diagram of a DB unit of the seawater supply apparatus according to the present invention, and FIG. 4 is a view showing the operation of the seawater supply apparatus according to the present invention FIG. 5 is a graph showing the motor RPM generated on a monthly basis when the seawater supply apparatus according to the present invention is operated, and FIG. 6 is a graph showing the motor RPM according to the present invention when the seawater supply apparatus according to the present invention is used. Fig. 5 is a graph showing the motor speed according to the sea water height when operated. Fig.

As shown in FIG. 2, the seawater supply apparatus according to the embodiment of the present invention includes a seawater supply unit 100 for drawing seawater to the ground, a pipeline 200 through which seawater supplied from the seawater supply unit 100 passes, And a culture water tank 300 positioned at one side of the pipeline 200 and supplied with seawater introduced through the pipeline 200. Fish and shellfish are cultured in the aquaculture tank 300. One side of the pipe 200 is installed in a state of being submerged in seawater and the other side is connected to the aquarium 300.

The seawater supply device of the present invention may further include a filter unit and an ultraviolet treatment unit to filter and sterilize the inflowing seawater. However, since the present invention is not a core configuration, a detailed description of the filter unit and the ultraviolet treatment unit I will not.

The seawater supply unit 100 includes a pump 110 for supplying seawater through the pipeline 200 and a pump 110 for driving the pump 110 to control the inflow of seawater A sensor unit 130 installed in the pipe 200 for measuring the temperature of the seawater and a sensor unit 130 connected to the motor unit 120 and the sensor unit 130, A control unit 140 for generating a control signal according to the signal and the data stored in the DB unit 160 to control the rotation of the motor unit 120 and a control unit 140 for inputting data for generating a control signal in the control unit 140 An input unit 150 and a DB unit 160 for storing monthly data on the difference in the number of tides entered by the input unit 150 and the average water temperature. In the sensor unit 130, the pressure of seawater may be measured.

The pump 110 is installed to supply seawater to the aquarium 300, and the amount of seawater flowing in accordance with the rotation of the motor 120 is adjusted.

The motor unit 120 is connected to the pump 110 and receives external power to drive the pump 110 to raise the seawater. When the motor unit 120 rotates, The amount of seawater per unit time supplied to the controller 300 is adjusted. In addition, the motor unit 120 includes an inverter for converting an AC current having a predetermined voltage or frequency into an alternating current having a predetermined voltage or frequency according to a control signal transmitted from an external source, and receiving the alternating current output from the inverter . Therefore, the pump 110 can be continuously controlled by the inverter motor.

The temperature of the seawater supplied through the pipe 200 is measured by the sensor unit 130, and the measured value is converted into an electrical signal and transmitted to the controller 140. When a difference between the signal value measured by the sensor unit 130 and a value stored in the DB unit 160 described later occurs, the control unit 140 transmits a control signal to the motor unit 120, Allow rotation to be adjusted.

The control unit 140 controls the motor unit 120 to increase the voltage or frequency when the sensor unit 130 receives the measured value and the input value input from the input unit 150, The signal is transmitted to increase the rotation of the motor and at the time of high tide, the voltage or frequency is decreased so that the amount of the incoming seawater is controlled by the rotation speed reduced to 10% ~ 35% If the temperature of the seawater is lower than 10 ° C as in the winter, the activity of the fish and shellfish is stopped, so even if a small amount of seawater is supplied, the growth of the fish and shellfish is not affected. If the temperature of the seawater is high, the activity of the fish and shellfish is active and a large amount of seawater is needed, which increases the rotation speed. The control unit 140 controls the rotation speed of the motor by comparing and analyzing the data stored in the DB unit 160 and the value measured by the sensor unit 130 as a programmable logic controller, do.

The input unit 150 inputs data on the temperature of the measured seawater and the difference between the tides only, and the input value is stored in the DB unit 160, which will be described later. The input unit 150 allows the user to input the number of the driven pumps 110 or the rotation of the motor, and the signal corresponding to the input of the user is transmitted to the control unit 140. The control unit 140 receiving the input signal can control to drive in accordance with the number of unit pumps selected by the user.

The DB unit 160 may include an input value input from the input unit 150 and may include a low water level data unit 161 and a mean water temperature data unit 162 .

The low-temperature and high-temperature data unit 161 stores the mean value obtained by measuring the variation of the height of the sea surface as the lunar attracting force is applied to the earth, and the sea water is repeated twice in one day and night The tidal stream on the west coast of Korea is the largest of 9m in Incheon alone and is more than 5m long and the southern coast is 2 ~ 3m smaller than the west coast. In the places where the slope is gentle like the west coast, The south coast can be less than 50 meters, and coastal cliffs like sea water go up and down. Therefore, in the case of the low-altitude sea water, the distance from the sea surface to the aquarium 300 is distanced, so that the motor can be rotated at a high speed to satisfy the required inflow of sea water. In case of high tide, The distance to the pump 300 is shortened, so that the necessary seawater can be introduced even if the motor is rotated at a low speed. However, in Korea and South Sea, low speed motor rotation could be supplied with required sea water by rotating at a deceleration rate of about 10% ~ 35% at high speed.

As shown in FIG. 5, the average water temperature data unit 162 is a data obtained by averaging the measured values of the seawater temperature measured every year. As shown in FIG. 5, the data measured for one year in the off- In March, the lowest water temperature is indicated at approximately 10 ° C, and the highest water temperature is indicated at approximately 22 ° C in July-September. As shown in Table 1 below, the growth rate of fish and shellfish according to the measured water temperature is low as the water temperature is low in spring and autumn, and the water temperature in summer is high, so that the activity is active and high growth is achieved . Also, in winter, the water temperature is very low, indicating that the activity also stops growing. As a result, it is sufficient to set the motor rotation to 60% in the winter when the motor rotation is set to 100% in the summer. Therefore, it is preferable that the water temperature and the rotation of the motor are proportioned as shown in Fig.

Seasons Seawater inflow conditions (motor RPM)% Remarks (growth rate) spring 80 Low activity due to low water temperature (low growth) summer 100 High activity due to high water temperature (high growth) autumn 85 Low activity due to low water temperature (low growth) winter 60 Due to very low water temperature,

As described above, according to the present invention, data according to the statistically calculated difference in water temperature and the difference in the tide is inputted through the input unit 150, the input data is stored in the DB unit 160, 140 to generate a control signal. The control signal generated through the controller 140 controls the rotation speed of the motor. The water temperature rotates at high speed in summer in proportion to the rotation of the motor, and rotates at a speed decelerated by 10% to 35% So that seawater can be introduced. As described above, the seawater was supplied at varying motor speeds according to seasons, seawater temperature, and low tide and high tide without affecting the style, resulting in an electricity saving effect of about 35% per year.

However, when the measured value is compared with the measured value of the sensor unit 130 and the difference between the temperature value and the fresh water level stored in the DB unit 160 and it is urgent to exceed the average value or affect the growth of the fish and shellfish, ) Generates control signals that are automatically controlled by an associated programmable logic controller to control the rate of rotation of the motor to control the amount of seawater inflow.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Will be apparent to those of ordinary skill in the art.

100: Seawater supply unit 110: Pump
120: motor unit 130: sensor unit
140: control unit 150: input unit
160: DB section

Claims (6)

The water supply unit 100 includes a pump 110 installed in the pipe 200 and a motor unit 120. The water supply unit 100 is connected to the aqua regeneration tank 300 and the other is submerged in seawater, A water tank 300 in which sea water introduced through the pipeline 200 is connected to one side of the pipeline 200 and a culture water tank 300 in which the sea water is supplied to the motor 200, A control unit 140 connected to the control unit 120 and controlling the seawater supply unit 100 and a DB unit 160 connected to the control unit 140 and recording the seawater height only for the tide interval. When the low-altitude information is provided according to the information of the tide interval provided from the DB unit 160, the controller 140 controls the motor unit 120 to rotate at a high speed and provide high- Wherein the control unit controls the rotation speed of the motor unit 120 constituting the seawater supply unit 100 so that the amount of the seawater supplied to the aquaculture tank 300 is controlled by the seawater supply unit 100. [ . The apparatus of claim 1, wherein the DB unit (160) records seasonal water temperature information in addition to the seawater height only for the tide interval. The apparatus of claim 1 or 2, further comprising a sensor unit (130) connected to the controller (140) and measuring the temperature of the seawater. 4. The method according to claim 3, wherein the control unit (140) controls the rotation speed of the motor unit (120) by comparing the data stored in the DB unit (160) Marine water supply system. delete 3. The apparatus of claim 2, wherein the rotational speed of the motor unit (120) is controlled to be rotated in proportion to the temperature of the seawater.

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